diff options
385 files changed, 3784 insertions, 2802 deletions
@@ -9,6 +9,10 @@ Linus ---------- +M: Matt Mackal +E: mpm@selenic.com +D: SLOB slab allocator + N: Matti Aarnio E: mea@nic.funet.fi D: Alpha systems hacking, IPv6 and other network related stuff diff --git a/Documentation/accounting/getdelays.c b/Documentation/accounting/getdelays.c index c6a06b71594d..f40578026a04 100644 --- a/Documentation/accounting/getdelays.c +++ b/Documentation/accounting/getdelays.c @@ -314,6 +314,7 @@ int main(int argc, char *argv[]) break; case 'm': strncpy(cpumask, optarg, sizeof(cpumask)); + cpumask[sizeof(cpumask) - 1] = '\0'; maskset = 1; printf("cpumask %s maskset %d\n", cpumask, maskset); break; diff --git a/Documentation/devicetree/bindings/arm/armada-38x.txt b/Documentation/devicetree/bindings/arm/armada-38x.txt index 11f2330a6554..ad9f8ed4d9bd 100644 --- a/Documentation/devicetree/bindings/arm/armada-38x.txt +++ b/Documentation/devicetree/bindings/arm/armada-38x.txt @@ -6,5 +6,15 @@ following property: Required root node property: - - compatible: must contain either "marvell,armada380" or - "marvell,armada385" depending on the variant of the SoC being used. + - compatible: must contain "marvell,armada380" + +In addition, boards using the Marvell Armada 385 SoC shall have the +following property before the previous one: + +Required root node property: + +compatible: must contain "marvell,armada385" + +Example: + +compatible = "marvell,a385-rd", "marvell,armada385", "marvell,armada380"; diff --git a/Documentation/devicetree/bindings/arm/l2cc.txt b/Documentation/devicetree/bindings/arm/l2cc.txt index b513cb8196fe..af527ee111c2 100644 --- a/Documentation/devicetree/bindings/arm/l2cc.txt +++ b/Documentation/devicetree/bindings/arm/l2cc.txt @@ -40,6 +40,9 @@ Optional properties: - arm,filter-ranges : <start length> Starting address and length of window to filter. Addresses in the filter window are directed to the M1 port. Other addresses will go to the M0 port. +- arm,io-coherent : indicates that the system is operating in an hardware + I/O coherent mode. Valid only when the arm,pl310-cache compatible + string is used. - interrupts : 1 combined interrupt. - cache-id-part: cache id part number to be used if it is not present on hardware diff --git a/Documentation/devicetree/bindings/arm/samsung/exynos-adc.txt b/Documentation/devicetree/bindings/arm/samsung/exynos-adc.txt index 5d49f2b37f68..832fe8cc24d7 100644 --- a/Documentation/devicetree/bindings/arm/samsung/exynos-adc.txt +++ b/Documentation/devicetree/bindings/arm/samsung/exynos-adc.txt @@ -48,7 +48,7 @@ adc@12D10000 { /* NTC thermistor is a hwmon device */ ncp15wb473@0 { - compatible = "ntc,ncp15wb473"; + compatible = "murata,ncp15wb473"; pullup-uv = <1800000>; pullup-ohm = <47000>; pulldown-ohm = <0>; diff --git a/Documentation/devicetree/bindings/hwmon/ntc_thermistor.txt b/Documentation/devicetree/bindings/hwmon/ntc_thermistor.txt index c6f66674f19c..b117b2e9e1a7 100644 --- a/Documentation/devicetree/bindings/hwmon/ntc_thermistor.txt +++ b/Documentation/devicetree/bindings/hwmon/ntc_thermistor.txt @@ -3,11 +3,19 @@ NTC Thermistor hwmon sensors Requires node properties: - "compatible" value : one of - "ntc,ncp15wb473" - "ntc,ncp18wb473" - "ntc,ncp21wb473" - "ntc,ncp03wb473" - "ntc,ncp15wl333" + "murata,ncp15wb473" + "murata,ncp18wb473" + "murata,ncp21wb473" + "murata,ncp03wb473" + "murata,ncp15wl333" + +/* Usage of vendor name "ntc" is deprecated */ +<DEPRECATED> "ntc,ncp15wb473" +<DEPRECATED> "ntc,ncp18wb473" +<DEPRECATED> "ntc,ncp21wb473" +<DEPRECATED> "ntc,ncp03wb473" +<DEPRECATED> "ntc,ncp15wl333" + - "pullup-uv" Pull up voltage in micro volts - "pullup-ohm" Pull up resistor value in ohms - "pulldown-ohm" Pull down resistor value in ohms @@ -21,7 +29,7 @@ Read more about iio bindings at Example: ncp15wb473@0 { - compatible = "ntc,ncp15wb473"; + compatible = "murata,ncp15wb473"; pullup-uv = <1800000>; pullup-ohm = <47000>; pulldown-ohm = <0>; diff --git a/Documentation/devicetree/bindings/spi/qcom,spi-qup.txt b/Documentation/devicetree/bindings/spi/qcom,spi-qup.txt index b82a268f1bd4..bee6ff204baf 100644 --- a/Documentation/devicetree/bindings/spi/qcom,spi-qup.txt +++ b/Documentation/devicetree/bindings/spi/qcom,spi-qup.txt @@ -23,6 +23,12 @@ Optional properties: - spi-max-frequency: Specifies maximum SPI clock frequency, Units - Hz. Definition as per Documentation/devicetree/bindings/spi/spi-bus.txt +- num-cs: total number of chipselects +- cs-gpios: should specify GPIOs used for chipselects. + The gpios will be referred to as reg = <index> in the SPI child + nodes. If unspecified, a single SPI device without a chip + select can be used. + SPI slave nodes must be children of the SPI master node and can contain properties described in Documentation/devicetree/bindings/spi/spi-bus.txt diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt index 4d7f3758d1b4..46a311e728a8 100644 --- a/Documentation/devicetree/bindings/vendor-prefixes.txt +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt @@ -83,6 +83,7 @@ mosaixtech Mosaix Technologies, Inc. moxa Moxa mpl MPL AG mundoreader Mundo Reader S.L. +murata Murata Manufacturing Co., Ltd. mxicy Macronix International Co., Ltd. national National Semiconductor neonode Neonode Inc. diff --git a/Documentation/email-clients.txt b/Documentation/email-clients.txt index 4e30ebaa9e5b..9af538be3751 100644 --- a/Documentation/email-clients.txt +++ b/Documentation/email-clients.txt @@ -1,6 +1,17 @@ Email clients info for Linux ====================================================================== +Git +---------------------------------------------------------------------- +These days most developers use `git send-email` instead of regular +email clients. The man page for this is quite good. On the receiving +end, maintainers use `git am` to apply the patches. + +If you are new to git then send your first patch to yourself. Save it +as raw text including all the headers. Run `git am raw_email.txt` and +then review the changelog with `git log`. When that works then send +the patch to the appropriate mailing list(s). + General Preferences ---------------------------------------------------------------------- Patches for the Linux kernel are submitted via email, preferably as diff --git a/Documentation/hwmon/ntc_thermistor b/Documentation/hwmon/ntc_thermistor index 3bfda94096fd..057b77029f26 100644 --- a/Documentation/hwmon/ntc_thermistor +++ b/Documentation/hwmon/ntc_thermistor @@ -1,7 +1,7 @@ Kernel driver ntc_thermistor ================= -Supported thermistors: +Supported thermistors from Murata: * Murata NTC Thermistors NCP15WB473, NCP18WB473, NCP21WB473, NCP03WB473, NCP15WL333 Prefixes: 'ncp15wb473', 'ncp18wb473', 'ncp21wb473', 'ncp03wb473', 'ncp15wl333' Datasheet: Publicly available at Murata @@ -15,9 +15,9 @@ Authors: Description ----------- -The NTC thermistor is a simple thermistor that requires users to provide the -resistance and lookup the corresponding compensation table to get the -temperature input. +The NTC (Negative Temperature Coefficient) thermistor is a simple thermistor +that requires users to provide the resistance and lookup the corresponding +compensation table to get the temperature input. The NTC driver provides lookup tables with a linear approximation function and four circuit models with an option not to use any of the four models. diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index 884904975d0b..c1b9aa8c5a52 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -3130,6 +3130,11 @@ bytes respectively. Such letter suffixes can also be entirely omitted. [KNL] Should the soft-lockup detector generate panics. Format: <integer> + softlockup_all_cpu_backtrace= + [KNL] Should the soft-lockup detector generate + backtraces on all cpus. + Format: <integer> + sonypi.*= [HW] Sony Programmable I/O Control Device driver See Documentation/laptops/sonypi.txt diff --git a/Documentation/memory-hotplug.txt b/Documentation/memory-hotplug.txt index f304edb8fbe7..45134dc23854 100644 --- a/Documentation/memory-hotplug.txt +++ b/Documentation/memory-hotplug.txt @@ -209,15 +209,12 @@ If memory device is found, memory hotplug code will be called. 4.2 Notify memory hot-add event by hand ------------ -On powerpc, the firmware does not notify a memory hotplug event to the kernel. -Therefore, "probe" interface is supported to notify the event to the kernel. -This interface depends on CONFIG_ARCH_MEMORY_PROBE. - -CONFIG_ARCH_MEMORY_PROBE is supported on powerpc only. On x86, this config -option is disabled by default since ACPI notifies a memory hotplug event to -the kernel, which performs its hotplug operation as the result. Please -enable this option if you need the "probe" interface for testing purposes -on x86. +On some architectures, the firmware may not notify the kernel of a memory +hotplug event. Therefore, the memory "probe" interface is supported to +explicitly notify the kernel. This interface depends on +CONFIG_ARCH_MEMORY_PROBE and can be configured on powerpc, sh, and x86 +if hotplug is supported, although for x86 this should be handled by ACPI +notification. Probe interface is located at /sys/devices/system/memory/probe diff --git a/Documentation/ptp/testptp.c b/Documentation/ptp/testptp.c index f1ac2dae999e..ba1d50200c46 100644 --- a/Documentation/ptp/testptp.c +++ b/Documentation/ptp/testptp.c @@ -17,6 +17,7 @@ * along with this program; if not, write to the Free Software * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ +#define _GNU_SOURCE #include <errno.h> #include <fcntl.h> #include <inttypes.h> @@ -46,12 +47,14 @@ #define CLOCK_INVALID -1 #endif -/* When glibc offers the syscall, this will go away. */ +/* clock_adjtime is not available in GLIBC < 2.14 */ +#if !__GLIBC_PREREQ(2, 14) #include <sys/syscall.h> static int clock_adjtime(clockid_t id, struct timex *tx) { return syscall(__NR_clock_adjtime, id, tx); } +#endif static clockid_t get_clockid(int fd) { diff --git a/Documentation/sound/alsa/HD-Audio-Models.txt b/Documentation/sound/alsa/HD-Audio-Models.txt index 85c362d8ea34..d1ab5e17eb13 100644 --- a/Documentation/sound/alsa/HD-Audio-Models.txt +++ b/Documentation/sound/alsa/HD-Audio-Models.txt @@ -286,6 +286,11 @@ STAC92HD83* hp-inv-led HP with broken BIOS for inverted mute LED auto BIOS setup (default) +STAC92HD95 +========== + hp-led LED support for HP laptops + hp-bass Bass HPF setup for HP Spectre 13 + STAC9872 ======== vaio VAIO laptop without SPDIF diff --git a/Documentation/sysctl/kernel.txt b/Documentation/sysctl/kernel.txt index 708bb7f1b7e0..c14374e71775 100644 --- a/Documentation/sysctl/kernel.txt +++ b/Documentation/sysctl/kernel.txt @@ -75,6 +75,7 @@ show up in /proc/sys/kernel: - shmall - shmmax [ sysv ipc ] - shmmni +- softlockup_all_cpu_backtrace - stop-a [ SPARC only ] - sysrq ==> Documentation/sysrq.txt - sysctl_writes_strict @@ -783,6 +784,22 @@ via the /proc/sys interface: ============================================================== +softlockup_all_cpu_backtrace: + +This value controls the soft lockup detector thread's behavior +when a soft lockup condition is detected as to whether or not +to gather further debug information. If enabled, each cpu will +be issued an NMI and instructed to capture stack trace. + +This feature is only applicable for architectures which support +NMI. + +0: do nothing. This is the default behavior. + +1: on detection capture more debug information. + +============================================================== + tainted: Non-zero if the kernel has been tainted. Numeric values, which diff --git a/Documentation/sysctl/vm.txt b/Documentation/sysctl/vm.txt index bd4b34c03738..4415aa915681 100644 --- a/Documentation/sysctl/vm.txt +++ b/Documentation/sysctl/vm.txt @@ -702,7 +702,8 @@ The batch value of each per cpu pagelist is also updated as a result. It is set to pcp->high/4. The upper limit of batch is (PAGE_SHIFT * 8) The initial value is zero. Kernel does not use this value at boot time to set -the high water marks for each per cpu page list. +the high water marks for each per cpu page list. If the user writes '0' to this +sysctl, it will revert to this default behavior. ============================================================== diff --git a/Documentation/trace/postprocess/trace-vmscan-postprocess.pl b/Documentation/trace/postprocess/trace-vmscan-postprocess.pl index 00e425faa2fd..78c9a7b2b58f 100644 --- a/Documentation/trace/postprocess/trace-vmscan-postprocess.pl +++ b/Documentation/trace/postprocess/trace-vmscan-postprocess.pl @@ -47,7 +47,6 @@ use constant HIGH_KSWAPD_REWAKEUP => 21; use constant HIGH_NR_SCANNED => 22; use constant HIGH_NR_TAKEN => 23; use constant HIGH_NR_RECLAIMED => 24; -use constant HIGH_NR_CONTIG_DIRTY => 25; my %perprocesspid; my %perprocess; @@ -105,7 +104,7 @@ my $regex_direct_end_default = 'nr_reclaimed=([0-9]*)'; my $regex_kswapd_wake_default = 'nid=([0-9]*) order=([0-9]*)'; my $regex_kswapd_sleep_default = 'nid=([0-9]*)'; my $regex_wakeup_kswapd_default = 'nid=([0-9]*) zid=([0-9]*) order=([0-9]*)'; -my $regex_lru_isolate_default = 'isolate_mode=([0-9]*) order=([0-9]*) nr_requested=([0-9]*) nr_scanned=([0-9]*) nr_taken=([0-9]*) contig_taken=([0-9]*) contig_dirty=([0-9]*) contig_failed=([0-9]*)'; +my $regex_lru_isolate_default = 'isolate_mode=([0-9]*) order=([0-9]*) nr_requested=([0-9]*) nr_scanned=([0-9]*) nr_taken=([0-9]*) file=([0-9]*)'; my $regex_lru_shrink_inactive_default = 'nid=([0-9]*) zid=([0-9]*) nr_scanned=([0-9]*) nr_reclaimed=([0-9]*) priority=([0-9]*) flags=([A-Z_|]*)'; my $regex_lru_shrink_active_default = 'lru=([A-Z_]*) nr_scanned=([0-9]*) nr_rotated=([0-9]*) priority=([0-9]*)'; my $regex_writepage_default = 'page=([0-9a-f]*) pfn=([0-9]*) flags=([A-Z_|]*)'; @@ -200,7 +199,7 @@ $regex_lru_isolate = generate_traceevent_regex( $regex_lru_isolate_default, "isolate_mode", "order", "nr_requested", "nr_scanned", "nr_taken", - "contig_taken", "contig_dirty", "contig_failed"); + "file"); $regex_lru_shrink_inactive = generate_traceevent_regex( "vmscan/mm_vmscan_lru_shrink_inactive", $regex_lru_shrink_inactive_default, @@ -375,7 +374,6 @@ EVENT_PROCESS: } my $isolate_mode = $1; my $nr_scanned = $4; - my $nr_contig_dirty = $7; # To closer match vmstat scanning statistics, only count isolate_both # and isolate_inactive as scanning. isolate_active is rotation @@ -385,7 +383,6 @@ EVENT_PROCESS: if ($isolate_mode != 2) { $perprocesspid{$process_pid}->{HIGH_NR_SCANNED} += $nr_scanned; } - $perprocesspid{$process_pid}->{HIGH_NR_CONTIG_DIRTY} += $nr_contig_dirty; } elsif ($tracepoint eq "mm_vmscan_lru_shrink_inactive") { $details = $6; if ($details !~ /$regex_lru_shrink_inactive/o) { @@ -539,13 +536,6 @@ sub dump_stats { } } } - if ($stats{$process_pid}->{HIGH_NR_CONTIG_DIRTY}) { - print " "; - my $count = $stats{$process_pid}->{HIGH_NR_CONTIG_DIRTY}; - if ($count != 0) { - print "contig-dirty=$count "; - } - } print "\n"; } diff --git a/MAINTAINERS b/MAINTAINERS index 9b9d7eac2ced..8e8b1dc08dbd 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -2917,6 +2917,9 @@ L: linux-doc@vger.kernel.org T: quilt http://www.infradead.org/~rdunlap/Doc/patches/ S: Maintained F: Documentation/ +X: Documentation/ABI/ +X: Documentation/devicetree/ +X: Documentation/[a-z][a-z]_[A-Z][A-Z]/ DOUBLETALK DRIVER M: "James R. Van Zandt" <jrv@vanzandt.mv.com> @@ -3189,14 +3192,6 @@ L: linux-scsi@vger.kernel.org S: Maintained F: drivers/scsi/eata_pio.* -EBTABLES -L: netfilter-devel@vger.kernel.org -W: http://ebtables.sourceforge.net/ -S: Orphan -F: include/linux/netfilter_bridge/ebt_*.h -F: include/uapi/linux/netfilter_bridge/ebt_*.h -F: net/bridge/netfilter/ebt*.c - EC100 MEDIA DRIVER M: Antti Palosaari <crope@iki.fi> L: linux-media@vger.kernel.org @@ -6105,12 +6100,11 @@ F: Documentation/networking/s2io.txt F: Documentation/networking/vxge.txt F: drivers/net/ethernet/neterion/ -NETFILTER/IPTABLES +NETFILTER ({IP,IP6,ARP,EB,NF}TABLES) M: Pablo Neira Ayuso <pablo@netfilter.org> M: Patrick McHardy <kaber@trash.net> M: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu> L: netfilter-devel@vger.kernel.org -L: netfilter@vger.kernel.org L: coreteam@netfilter.org W: http://www.netfilter.org/ W: http://www.iptables.org/ @@ -8196,13 +8190,15 @@ S: Maintained F: drivers/usb/misc/sisusbvga/ SLAB ALLOCATOR -M: Christoph Lameter <cl@linux-foundation.org> +M: Christoph Lameter <cl@linux.com> M: Pekka Enberg <penberg@kernel.org> -M: Matt Mackall <mpm@selenic.com> +M: David Rientjes <rientjes@google.com> +M: Joonsoo Kim <iamjoonsoo.kim@lge.com> +M: Andrew Morton <akpm@linux-foundation.org> L: linux-mm@kvack.org S: Maintained F: include/linux/sl?b*.h -F: mm/sl?b.c +F: mm/sl?b* SLEEPABLE READ-COPY UPDATE (SRCU) M: Lai Jiangshan <laijs@cn.fujitsu.com> @@ -1,7 +1,7 @@ VERSION = 3 PATCHLEVEL = 16 SUBLEVEL = 0 -EXTRAVERSION = -rc2 +EXTRAVERSION = -rc3 NAME = Shuffling Zombie Juror # *DOCUMENTATION* @@ -126,7 +126,10 @@ PHONY += $(MAKECMDGOALS) sub-make $(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make @: +# Fake the "Entering directory" message once, so that IDEs/editors are +# able to understand relative filenames. sub-make: FORCE + @echo "make[1]: Entering directory \`$(KBUILD_OUTPUT)'" $(if $(KBUILD_VERBOSE:1=),@)$(MAKE) -C $(KBUILD_OUTPUT) \ KBUILD_SRC=$(CURDIR) \ KBUILD_EXTMOD="$(KBUILD_EXTMOD)" -f $(CURDIR)/Makefile \ diff --git a/arch/arc/include/asm/cache.h b/arch/arc/include/asm/cache.h index c1d3d2da1191..b3c750979aa1 100644 --- a/arch/arc/include/asm/cache.h +++ b/arch/arc/include/asm/cache.h @@ -60,7 +60,7 @@ extern void read_decode_cache_bcr(void); #define ARC_REG_IC_IVIC 0x10 #define ARC_REG_IC_CTRL 0x11 #define ARC_REG_IC_IVIL 0x19 -#if defined(CONFIG_ARC_MMU_V3) || defined (CONFIG_ARC_MMU_V4) +#if defined(CONFIG_ARC_MMU_V3) #define ARC_REG_IC_PTAG 0x1E #endif @@ -74,7 +74,7 @@ extern void read_decode_cache_bcr(void); #define ARC_REG_DC_IVDL 0x4A #define ARC_REG_DC_FLSH 0x4B #define ARC_REG_DC_FLDL 0x4C -#if defined(CONFIG_ARC_MMU_V3) || defined (CONFIG_ARC_MMU_V4) +#if defined(CONFIG_ARC_MMU_V3) #define ARC_REG_DC_PTAG 0x5C #endif diff --git a/arch/arc/include/uapi/asm/ptrace.h b/arch/arc/include/uapi/asm/ptrace.h index 2618cc13ba75..76a7739aab1c 100644 --- a/arch/arc/include/uapi/asm/ptrace.h +++ b/arch/arc/include/uapi/asm/ptrace.h @@ -11,6 +11,7 @@ #ifndef _UAPI__ASM_ARC_PTRACE_H #define _UAPI__ASM_ARC_PTRACE_H +#define PTRACE_GET_THREAD_AREA 25 #ifndef __ASSEMBLY__ /* diff --git a/arch/arc/kernel/ctx_sw_asm.S b/arch/arc/kernel/ctx_sw_asm.S index 2ff0347a2fd7..e248594097e7 100644 --- a/arch/arc/kernel/ctx_sw_asm.S +++ b/arch/arc/kernel/ctx_sw_asm.S @@ -10,9 +10,9 @@ * -This is the more "natural" hand written assembler */ +#include <linux/linkage.h> #include <asm/entry.h> /* For the SAVE_* macros */ #include <asm/asm-offsets.h> -#include <asm/linkage.h> #define KSP_WORD_OFF ((TASK_THREAD + THREAD_KSP) / 4) diff --git a/arch/arc/kernel/devtree.c b/arch/arc/kernel/devtree.c index 0b3ef4025d89..fffdb5e41b20 100644 --- a/arch/arc/kernel/devtree.c +++ b/arch/arc/kernel/devtree.c @@ -41,7 +41,7 @@ const struct machine_desc * __init setup_machine_fdt(void *dt) { const struct machine_desc *mdesc; unsigned long dt_root; - void *clk; + const void *clk; int len; if (!early_init_dt_scan(dt)) diff --git a/arch/arc/kernel/head.S b/arch/arc/kernel/head.S index 07a58f2d3077..4d2481bd8b98 100644 --- a/arch/arc/kernel/head.S +++ b/arch/arc/kernel/head.S @@ -77,10 +77,11 @@ stext: ; Clear BSS before updating any globals ; XXX: use ZOL here mov r5, __bss_start - mov r6, __bss_stop + sub r6, __bss_stop, r5 + lsr.f lp_count, r6, 2 + lpnz 1f + st.ab 0, [r5, 4] 1: - st.ab 0, [r5,4] - brlt r5, r6, 1b ; Uboot - kernel ABI ; r0 = [0] No uboot interaction, [1] cmdline in r2, [2] DTB in r2 diff --git a/arch/arc/kernel/ptrace.c b/arch/arc/kernel/ptrace.c index 5d76706139dd..13b3ffb27a38 100644 --- a/arch/arc/kernel/ptrace.c +++ b/arch/arc/kernel/ptrace.c @@ -146,6 +146,10 @@ long arch_ptrace(struct task_struct *child, long request, pr_debug("REQ=%ld: ADDR =0x%lx, DATA=0x%lx)\n", request, addr, data); switch (request) { + case PTRACE_GET_THREAD_AREA: + ret = put_user(task_thread_info(child)->thr_ptr, + (unsigned long __user *)data); + break; default: ret = ptrace_request(child, request, addr, data); break; diff --git a/arch/arc/kernel/smp.c b/arch/arc/kernel/smp.c index cf90b6f4d3e0..c802bb500602 100644 --- a/arch/arc/kernel/smp.c +++ b/arch/arc/kernel/smp.c @@ -337,8 +337,19 @@ irqreturn_t do_IPI(int irq, void *dev_id) * API called by platform code to hookup arch-common ISR to their IPI IRQ */ static DEFINE_PER_CPU(int, ipi_dev); + +static struct irqaction arc_ipi_irq = { + .name = "IPI Interrupt", + .flags = IRQF_PERCPU, + .handler = do_IPI, +}; + int smp_ipi_irq_setup(int cpu, int irq) { - int *dev_id = &per_cpu(ipi_dev, smp_processor_id()); - return request_percpu_irq(irq, do_IPI, "IPI Interrupt", dev_id); + if (!cpu) + return setup_irq(irq, &arc_ipi_irq); + else + arch_unmask_irq(irq); + + return 0; } diff --git a/arch/arc/kernel/vmlinux.lds.S b/arch/arc/kernel/vmlinux.lds.S index 2555f5886af6..dd35bde39f69 100644 --- a/arch/arc/kernel/vmlinux.lds.S +++ b/arch/arc/kernel/vmlinux.lds.S @@ -116,7 +116,7 @@ SECTIONS _edata = .; - BSS_SECTION(0, 0, 0) + BSS_SECTION(4, 4, 4) #ifdef CONFIG_ARC_DW2_UNWIND . = ALIGN(PAGE_SIZE); diff --git a/arch/arc/mm/cache_arc700.c b/arch/arc/mm/cache_arc700.c index 1f676c4794e0..353b202c37c9 100644 --- a/arch/arc/mm/cache_arc700.c +++ b/arch/arc/mm/cache_arc700.c @@ -389,7 +389,7 @@ static inline void __dc_line_op(unsigned long paddr, unsigned long vaddr, /*********************************************************** * Machine specific helper for per line I-Cache invalidate. */ -static void __ic_line_inv_vaddr(unsigned long paddr, unsigned long vaddr, +static void __ic_line_inv_vaddr_local(unsigned long paddr, unsigned long vaddr, unsigned long sz) { unsigned long flags; @@ -405,6 +405,23 @@ static inline void __ic_entire_inv(void) read_aux_reg(ARC_REG_IC_CTRL); /* blocks */ } +struct ic_line_inv_vaddr_ipi { + unsigned long paddr, vaddr; + int sz; +}; + +static void __ic_line_inv_vaddr_helper(void *info) +{ + struct ic_line_inv_vaddr_ipi *ic_inv = (struct ic_line_inv_vaddr_ipi*) info; + __ic_line_inv_vaddr_local(ic_inv->paddr, ic_inv->vaddr, ic_inv->sz); +} + +static void __ic_line_inv_vaddr(unsigned long paddr, unsigned long vaddr, + unsigned long sz) +{ + struct ic_line_inv_vaddr_ipi ic_inv = { paddr, vaddr , sz}; + on_each_cpu(__ic_line_inv_vaddr_helper, &ic_inv, 1); +} #else #define __ic_entire_inv() @@ -553,12 +570,8 @@ void flush_icache_range(unsigned long kstart, unsigned long kend) */ void __sync_icache_dcache(unsigned long paddr, unsigned long vaddr, int len) { - unsigned long flags; - - local_irq_save(flags); - __ic_line_inv_vaddr(paddr, vaddr, len); __dc_line_op(paddr, vaddr, len, OP_FLUSH_N_INV); - local_irq_restore(flags); + __ic_line_inv_vaddr(paddr, vaddr, len); } /* wrapper to compile time eliminate alignment checks in flush loop */ diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile index 5986ff63b901..adb5ed9e269e 100644 --- a/arch/arm/boot/dts/Makefile +++ b/arch/arm/boot/dts/Makefile @@ -357,7 +357,7 @@ dtb-$(CONFIG_ARCH_STI)+= stih407-b2120.dtb \ stih415-b2020.dtb \ stih416-b2000.dtb \ stih416-b2020.dtb \ - stih416-b2020-revE.dtb + stih416-b2020e.dtb dtb-$(CONFIG_MACH_SUN4I) += \ sun4i-a10-a1000.dtb \ sun4i-a10-cubieboard.dtb \ diff --git a/arch/arm/boot/dts/armada-380.dtsi b/arch/arm/boot/dts/armada-380.dtsi index e69bc6759c39..4173a8ab34e7 100644 --- a/arch/arm/boot/dts/armada-380.dtsi +++ b/arch/arm/boot/dts/armada-380.dtsi @@ -16,7 +16,7 @@ / { model = "Marvell Armada 380 family SoC"; - compatible = "marvell,armada380", "marvell,armada38x"; + compatible = "marvell,armada380"; cpus { #address-cells = <1>; diff --git a/arch/arm/boot/dts/armada-385-db.dts b/arch/arm/boot/dts/armada-385-db.dts index 5bae4731828b..1af886f1e486 100644 --- a/arch/arm/boot/dts/armada-385-db.dts +++ b/arch/arm/boot/dts/armada-385-db.dts @@ -16,7 +16,7 @@ / { model = "Marvell Armada 385 Development Board"; - compatible = "marvell,a385-db", "marvell,armada385", "marvell,armada38x"; + compatible = "marvell,a385-db", "marvell,armada385", "marvell,armada380"; chosen { bootargs = "console=ttyS0,115200 earlyprintk"; diff --git a/arch/arm/boot/dts/armada-385-rd.dts b/arch/arm/boot/dts/armada-385-rd.dts index 40893255a3f0..aaca2861dc87 100644 --- a/arch/arm/boot/dts/armada-385-rd.dts +++ b/arch/arm/boot/dts/armada-385-rd.dts @@ -17,7 +17,7 @@ / { model = "Marvell Armada 385 Reference Design"; - compatible = "marvell,a385-rd", "marvell,armada385", "marvell,armada38x"; + compatible = "marvell,a385-rd", "marvell,armada385", "marvell,armada380"; chosen { bootargs = "console=ttyS0,115200 earlyprintk"; diff --git a/arch/arm/boot/dts/armada-385.dtsi b/arch/arm/boot/dts/armada-385.dtsi index f011009bf4cf..6283d7912f71 100644 --- a/arch/arm/boot/dts/armada-385.dtsi +++ b/arch/arm/boot/dts/armada-385.dtsi @@ -16,7 +16,7 @@ / { model = "Marvell Armada 385 family SoC"; - compatible = "marvell,armada385", "marvell,armada38x"; + compatible = "marvell,armada385", "marvell,armada380"; cpus { #address-cells = <1>; diff --git a/arch/arm/boot/dts/armada-38x.dtsi b/arch/arm/boot/dts/armada-38x.dtsi index 3de364e81b52..689fa1a46728 100644 --- a/arch/arm/boot/dts/armada-38x.dtsi +++ b/arch/arm/boot/dts/armada-38x.dtsi @@ -20,7 +20,7 @@ / { model = "Marvell Armada 38x family SoC"; - compatible = "marvell,armada38x"; + compatible = "marvell,armada380"; aliases { gpio0 = &gpio0; diff --git a/arch/arm/boot/dts/at91sam9261.dtsi b/arch/arm/boot/dts/at91sam9261.dtsi index b309c1c6e848..04927db1d6bf 100644 --- a/arch/arm/boot/dts/at91sam9261.dtsi +++ b/arch/arm/boot/dts/at91sam9261.dtsi @@ -568,24 +568,17 @@ #size-cells = <0>; #interrupt-cells = <1>; - slow_rc_osc: slow_rc_osc { - compatible = "fixed-clock"; + main_osc: main_osc { + compatible = "atmel,at91rm9200-clk-main-osc"; #clock-cells = <0>; - clock-frequency = <32768>; - clock-accuracy = <50000000>; - }; - - clk32k: slck { - compatible = "atmel,at91sam9260-clk-slow"; - #clock-cells = <0>; - clocks = <&slow_rc_osc &slow_xtal>; + interrupts-extended = <&pmc AT91_PMC_MOSCS>; + clocks = <&main_xtal>; }; main: mainck { compatible = "atmel,at91rm9200-clk-main"; #clock-cells = <0>; - interrupts-extended = <&pmc AT91_PMC_MOSCS>; - clocks = <&main_xtal>; + clocks = <&main_osc>; }; plla: pllack { @@ -615,7 +608,7 @@ compatible = "atmel,at91rm9200-clk-master"; #clock-cells = <0>; interrupts-extended = <&pmc AT91_PMC_MCKRDY>; - clocks = <&clk32k>, <&main>, <&plla>, <&pllb>; + clocks = <&slow_xtal>, <&main>, <&plla>, <&pllb>; atmel,clk-output-range = <0 94000000>; atmel,clk-divisors = <1 2 4 0>; }; @@ -632,7 +625,7 @@ #address-cells = <1>; #size-cells = <0>; interrupt-parent = <&pmc>; - clocks = <&clk32k>, <&main>, <&plla>, <&pllb>; + clocks = <&slow_xtal>, <&main>, <&plla>, <&pllb>; prog0: prog0 { #clock-cells = <0>; diff --git a/arch/arm/boot/dts/at91sam9261ek.dts b/arch/arm/boot/dts/at91sam9261ek.dts index c6683ea8b743..aa35a7aec9a8 100644 --- a/arch/arm/boot/dts/at91sam9261ek.dts +++ b/arch/arm/boot/dts/at91sam9261ek.dts @@ -20,6 +20,10 @@ reg = <0x20000000 0x4000000>; }; + slow_xtal { + clock-frequency = <32768>; + }; + main_xtal { clock-frequency = <18432000>; }; diff --git a/arch/arm/boot/dts/at91sam9n12.dtsi b/arch/arm/boot/dts/at91sam9n12.dtsi index d1b82e6635d5..287795985e32 100644 --- a/arch/arm/boot/dts/at91sam9n12.dtsi +++ b/arch/arm/boot/dts/at91sam9n12.dtsi @@ -132,8 +132,8 @@ <595000000 650000000 3 0>, <545000000 600000000 0 1>, <495000000 555000000 1 1>, - <445000000 500000000 1 2>, - <400000000 450000000 1 3>; + <445000000 500000000 2 1>, + <400000000 450000000 3 1>; }; plladiv: plladivck { diff --git a/arch/arm/boot/dts/at91sam9x5.dtsi b/arch/arm/boot/dts/at91sam9x5.dtsi index 1a57298636a5..d6133f497207 100644 --- a/arch/arm/boot/dts/at91sam9x5.dtsi +++ b/arch/arm/boot/dts/at91sam9x5.dtsi @@ -140,8 +140,8 @@ 595000000 650000000 3 0 545000000 600000000 0 1 495000000 555000000 1 1 - 445000000 500000000 1 2 - 400000000 450000000 1 3>; + 445000000 500000000 2 1 + 400000000 450000000 3 1>; }; plladiv: plladivck { diff --git a/arch/arm/boot/dts/exynos4.dtsi b/arch/arm/boot/dts/exynos4.dtsi index b8ece4be41ca..fbaf426d2daa 100644 --- a/arch/arm/boot/dts/exynos4.dtsi +++ b/arch/arm/boot/dts/exynos4.dtsi @@ -113,7 +113,7 @@ compatible = "arm,cortex-a9-gic"; #interrupt-cells = <3>; interrupt-controller; - reg = <0x10490000 0x1000>, <0x10480000 0x100>; + reg = <0x10490000 0x10000>, <0x10480000 0x10000>; }; combiner: interrupt-controller@10440000 { diff --git a/arch/arm/boot/dts/imx51-babbage.dts b/arch/arm/boot/dts/imx51-babbage.dts index 6bc3243a80d3..181d77fa2fa6 100644 --- a/arch/arm/boot/dts/imx51-babbage.dts +++ b/arch/arm/boot/dts/imx51-babbage.dts @@ -315,15 +315,15 @@ &esdhc1 { pinctrl-names = "default"; pinctrl-0 = <&pinctrl_esdhc1>; - fsl,cd-controller; - fsl,wp-controller; + cd-gpios = <&gpio1 0 GPIO_ACTIVE_LOW>; + wp-gpios = <&gpio1 1 GPIO_ACTIVE_HIGH>; status = "okay"; }; &esdhc2 { pinctrl-names = "default"; pinctrl-0 = <&pinctrl_esdhc2>; - cd-gpios = <&gpio1 6 GPIO_ACTIVE_HIGH>; + cd-gpios = <&gpio1 6 GPIO_ACTIVE_LOW>; wp-gpios = <&gpio1 5 GPIO_ACTIVE_HIGH>; status = "okay"; }; @@ -468,8 +468,8 @@ MX51_PAD_SD1_DATA1__SD1_DATA1 0x20d5 MX51_PAD_SD1_DATA2__SD1_DATA2 0x20d5 MX51_PAD_SD1_DATA3__SD1_DATA3 0x20d5 - MX51_PAD_GPIO1_0__SD1_CD 0x20d5 - MX51_PAD_GPIO1_1__SD1_WP 0x20d5 + MX51_PAD_GPIO1_0__GPIO1_0 0x100 + MX51_PAD_GPIO1_1__GPIO1_1 0x100 >; }; diff --git a/arch/arm/boot/dts/imx51-eukrea-mbimxsd51-baseboard.dts b/arch/arm/boot/dts/imx51-eukrea-mbimxsd51-baseboard.dts index 75e66c9c6144..31cfb7f2b02e 100644 --- a/arch/arm/boot/dts/imx51-eukrea-mbimxsd51-baseboard.dts +++ b/arch/arm/boot/dts/imx51-eukrea-mbimxsd51-baseboard.dts @@ -107,7 +107,7 @@ &esdhc1 { pinctrl-names = "default"; pinctrl-0 = <&pinctrl_esdhc1 &pinctrl_esdhc1_cd>; - fsl,cd-controller; + cd-gpios = <&gpio1 0 GPIO_ACTIVE_LOW>; status = "okay"; }; @@ -206,7 +206,7 @@ pinctrl_esdhc1_cd: esdhc1_cd { fsl,pins = < - MX51_PAD_GPIO1_0__SD1_CD 0x20d5 + MX51_PAD_GPIO1_0__GPIO1_0 0xd5 >; }; diff --git a/arch/arm/boot/dts/imx53-m53evk.dts b/arch/arm/boot/dts/imx53-m53evk.dts index d5d146a8b149..c4956b0ffb35 100644 --- a/arch/arm/boot/dts/imx53-m53evk.dts +++ b/arch/arm/boot/dts/imx53-m53evk.dts @@ -21,27 +21,25 @@ <0xb0000000 0x20000000>; }; - soc { - display1: display@di1 { - compatible = "fsl,imx-parallel-display"; - interface-pix-fmt = "bgr666"; - pinctrl-names = "default"; - pinctrl-0 = <&pinctrl_ipu_disp1>; - - display-timings { - 800x480p60 { - native-mode; - clock-frequency = <31500000>; - hactive = <800>; - vactive = <480>; - hfront-porch = <40>; - hback-porch = <88>; - hsync-len = <128>; - vback-porch = <33>; - vfront-porch = <9>; - vsync-len = <3>; - vsync-active = <1>; - }; + display1: display@di1 { + compatible = "fsl,imx-parallel-display"; + interface-pix-fmt = "bgr666"; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_ipu_disp1>; + + display-timings { + 800x480p60 { + native-mode; + clock-frequency = <31500000>; + hactive = <800>; + vactive = <480>; + hfront-porch = <40>; + hback-porch = <88>; + hsync-len = <128>; + vback-porch = <33>; + vfront-porch = <9>; + vsync-len = <3>; + vsync-active = <1>; }; }; diff --git a/arch/arm/boot/dts/imx6dl-hummingboard.dts b/arch/arm/boot/dts/imx6dl-hummingboard.dts index 5373a5f2782b..c8e51dd41b8f 100644 --- a/arch/arm/boot/dts/imx6dl-hummingboard.dts +++ b/arch/arm/boot/dts/imx6dl-hummingboard.dts @@ -143,6 +143,14 @@ fsl,pins = <MX6QDL_PAD_GPIO_0__GPIO1_IO00 0x1b0b0>; }; + pinctrl_hummingboard_usbotg_id: hummingboard-usbotg-id { + /* + * Similar to pinctrl_usbotg_2, but we want it + * pulled down for a fixed host connection. + */ + fsl,pins = <MX6QDL_PAD_GPIO_1__USB_OTG_ID 0x13059>; + }; + pinctrl_hummingboard_usbotg_vbus: hummingboard-usbotg-vbus { fsl,pins = <MX6QDL_PAD_EIM_D22__GPIO3_IO22 0x1b0b0>; }; @@ -178,6 +186,8 @@ }; &usbotg { + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_hummingboard_usbotg_id>; vbus-supply = <®_usbotg_vbus>; status = "okay"; }; diff --git a/arch/arm/boot/dts/imx6q-gw51xx.dts b/arch/arm/boot/dts/imx6q-gw51xx.dts index af4929aee075..0e1406e58eff 100644 --- a/arch/arm/boot/dts/imx6q-gw51xx.dts +++ b/arch/arm/boot/dts/imx6q-gw51xx.dts @@ -11,7 +11,7 @@ /dts-v1/; #include "imx6q.dtsi" -#include "imx6qdl-gw54xx.dtsi" +#include "imx6qdl-gw51xx.dtsi" / { model = "Gateworks Ventana i.MX6 Quad GW51XX"; diff --git a/arch/arm/boot/dts/imx6qdl-cubox-i.dtsi b/arch/arm/boot/dts/imx6qdl-cubox-i.dtsi index 25da82a03110..e8e781656b3f 100644 --- a/arch/arm/boot/dts/imx6qdl-cubox-i.dtsi +++ b/arch/arm/boot/dts/imx6qdl-cubox-i.dtsi @@ -12,6 +12,19 @@ pinctrl-0 = <&pinctrl_cubox_i_ir>; }; + pwmleds { + compatible = "pwm-leds"; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_cubox_i_pwm1>; + + front { + active-low; + label = "imx6:red:front"; + max-brightness = <248>; + pwms = <&pwm1 0 50000>; + }; + }; + regulators { compatible = "simple-bus"; @@ -109,6 +122,10 @@ >; }; + pinctrl_cubox_i_pwm1: cubox-i-pwm1-front-led { + fsl,pins = <MX6QDL_PAD_DISP0_DAT8__PWM1_OUT 0x1b0b0>; + }; + pinctrl_cubox_i_spdif: cubox-i-spdif { fsl,pins = <MX6QDL_PAD_GPIO_17__SPDIF_OUT 0x13091>; }; @@ -117,6 +134,14 @@ fsl,pins = <MX6QDL_PAD_GPIO_0__GPIO1_IO00 0x4001b0b0>; }; + pinctrl_cubox_i_usbotg_id: cubox-i-usbotg-id { + /* + * The Cubox-i pulls this low, but as it's pointless + * leaving it as a pull-up, even if it is just 10uA. + */ + fsl,pins = <MX6QDL_PAD_GPIO_1__USB_OTG_ID 0x13059>; + }; + pinctrl_cubox_i_usbotg_vbus: cubox-i-usbotg-vbus { fsl,pins = <MX6QDL_PAD_EIM_D22__GPIO3_IO22 0x4001b0b0>; }; @@ -153,6 +178,8 @@ }; &usbotg { + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_cubox_i_usbotg_id>; vbus-supply = <®_usbotg_vbus>; status = "okay"; }; diff --git a/arch/arm/boot/dts/imx6qdl-gw51xx.dtsi b/arch/arm/boot/dts/imx6qdl-gw51xx.dtsi index 31665adcbf39..0db15af41cb1 100644 --- a/arch/arm/boot/dts/imx6qdl-gw51xx.dtsi +++ b/arch/arm/boot/dts/imx6qdl-gw51xx.dtsi @@ -161,7 +161,7 @@ status = "okay"; pmic: ltc3676@3c { - compatible = "ltc,ltc3676"; + compatible = "lltc,ltc3676"; reg = <0x3c>; regulators { diff --git a/arch/arm/boot/dts/imx6qdl-gw52xx.dtsi b/arch/arm/boot/dts/imx6qdl-gw52xx.dtsi index 367af3ec9435..744c8a2d81f6 100644 --- a/arch/arm/boot/dts/imx6qdl-gw52xx.dtsi +++ b/arch/arm/boot/dts/imx6qdl-gw52xx.dtsi @@ -220,7 +220,7 @@ }; pmic: ltc3676@3c { - compatible = "ltc,ltc3676"; + compatible = "lltc,ltc3676"; reg = <0x3c>; regulators { @@ -288,7 +288,7 @@ codec: sgtl5000@0a { compatible = "fsl,sgtl5000"; reg = <0x0a>; - clocks = <&clks 169>; + clocks = <&clks 201>; VDDA-supply = <®_1p8v>; VDDIO-supply = <®_3p3v>; }; diff --git a/arch/arm/boot/dts/imx6qdl-gw53xx.dtsi b/arch/arm/boot/dts/imx6qdl-gw53xx.dtsi index c91b5a6c769b..adf150c1be90 100644 --- a/arch/arm/boot/dts/imx6qdl-gw53xx.dtsi +++ b/arch/arm/boot/dts/imx6qdl-gw53xx.dtsi @@ -234,7 +234,7 @@ }; pmic: ltc3676@3c { - compatible = "ltc,ltc3676"; + compatible = "lltc,ltc3676"; reg = <0x3c>; regulators { diff --git a/arch/arm/boot/dts/imx6qdl-microsom.dtsi b/arch/arm/boot/dts/imx6qdl-microsom.dtsi index d729d0b15f25..79eac6849d4c 100644 --- a/arch/arm/boot/dts/imx6qdl-microsom.dtsi +++ b/arch/arm/boot/dts/imx6qdl-microsom.dtsi @@ -10,14 +10,6 @@ MX6QDL_PAD_CSI0_DAT11__UART1_RX_DATA 0x1b0b1 >; }; - - pinctrl_microsom_usbotg: microsom-usbotg { - /* - * Similar to pinctrl_usbotg_2, but we want it - * pulled down for a fixed host connection. - */ - fsl,pins = <MX6QDL_PAD_GPIO_1__USB_OTG_ID 0x13059>; - }; }; }; @@ -26,8 +18,3 @@ pinctrl-0 = <&pinctrl_microsom_uart1>; status = "okay"; }; - -&usbotg { - pinctrl-names = "default"; - pinctrl-0 = <&pinctrl_microsom_usbotg>; -}; diff --git a/arch/arm/boot/dts/imx6sl.dtsi b/arch/arm/boot/dts/imx6sl.dtsi index 2d4e5285f3f3..57d4abe03a94 100644 --- a/arch/arm/boot/dts/imx6sl.dtsi +++ b/arch/arm/boot/dts/imx6sl.dtsi @@ -686,7 +686,7 @@ compatible = "fsl,imx6sl-fec", "fsl,imx25-fec"; reg = <0x02188000 0x4000>; interrupts = <0 114 IRQ_TYPE_LEVEL_HIGH>; - clocks = <&clks IMX6SL_CLK_ENET_REF>, + clocks = <&clks IMX6SL_CLK_ENET>, <&clks IMX6SL_CLK_ENET_REF>; clock-names = "ipg", "ahb"; status = "disabled"; diff --git a/arch/arm/boot/dts/kirkwood-guruplug-server-plus.dts b/arch/arm/boot/dts/kirkwood-guruplug-server-plus.dts index c5a1fc75c7a3..b2d9834bf458 100644 --- a/arch/arm/boot/dts/kirkwood-guruplug-server-plus.dts +++ b/arch/arm/boot/dts/kirkwood-guruplug-server-plus.dts @@ -105,7 +105,6 @@ compatible = "ethernet-phy-id0141.0cb0", "ethernet-phy-ieee802.3-c22"; reg = <0>; - phy-connection-type = "rgmii-id"; }; ethphy1: ethernet-phy@1 { @@ -113,7 +112,6 @@ compatible = "ethernet-phy-id0141.0cb0", "ethernet-phy-ieee802.3-c22"; reg = <1>; - phy-connection-type = "rgmii-id"; }; }; @@ -121,6 +119,7 @@ status = "okay"; ethernet0-port@0 { phy-handle = <ðphy0>; + phy-connection-type = "rgmii-id"; }; }; @@ -128,5 +127,6 @@ status = "okay"; ethernet1-port@0 { phy-handle = <ðphy1>; + phy-connection-type = "rgmii-id"; }; }; diff --git a/arch/arm/boot/dts/stih415.dtsi b/arch/arm/boot/dts/stih415.dtsi index d6f254f302fe..a0f6f75fe3b5 100644 --- a/arch/arm/boot/dts/stih415.dtsi +++ b/arch/arm/boot/dts/stih415.dtsi @@ -169,8 +169,8 @@ pinctrl-names = "default"; pinctrl-0 = <&pinctrl_mii0>; - clock-names = "stmmaceth"; - clocks = <&clk_s_a1_ls CLK_GMAC0_PHY>; + clock-names = "stmmaceth", "sti-ethclk"; + clocks = <&clk_s_a1_ls CLK_ICN_IF_2>, <&clk_s_a1_ls CLK_GMAC0_PHY>; }; ethernet1: dwmac@fef08000 { @@ -192,8 +192,8 @@ reset-names = "stmmaceth"; pinctrl-names = "default"; pinctrl-0 = <&pinctrl_mii1>; - clock-names = "stmmaceth"; - clocks = <&clk_s_a0_ls CLK_ETH1_PHY>; + clock-names = "stmmaceth", "sti-ethclk"; + clocks = <&clk_s_a0_ls CLK_ICN_REG>, <&clk_s_a0_ls CLK_ETH1_PHY>; }; rc: rc@fe518000 { diff --git a/arch/arm/boot/dts/stih416-b2020-revE.dts b/arch/arm/boot/dts/stih416-b2020e.dts index ba0fa2caaf18..ba0fa2caaf18 100644 --- a/arch/arm/boot/dts/stih416-b2020-revE.dts +++ b/arch/arm/boot/dts/stih416-b2020e.dts diff --git a/arch/arm/boot/dts/stih416.dtsi b/arch/arm/boot/dts/stih416.dtsi index 06473c5d9ea9..84758d76d064 100644 --- a/arch/arm/boot/dts/stih416.dtsi +++ b/arch/arm/boot/dts/stih416.dtsi @@ -175,8 +175,8 @@ reset-names = "stmmaceth"; pinctrl-names = "default"; pinctrl-0 = <&pinctrl_mii0>; - clock-names = "stmmaceth"; - clocks = <&clk_s_a1_ls CLK_GMAC0_PHY>; + clock-names = "stmmaceth", "sti-ethclk"; + clocks = <&clk_s_a1_ls CLK_ICN_IF_2>, <&clk_s_a1_ls CLK_GMAC0_PHY>; }; ethernet1: dwmac@fef08000 { @@ -197,8 +197,8 @@ reset-names = "stmmaceth"; pinctrl-names = "default"; pinctrl-0 = <&pinctrl_mii1>; - clock-names = "stmmaceth"; - clocks = <&clk_s_a0_ls CLK_ETH1_PHY>; + clock-names = "stmmaceth", "sti-ethclk"; + clocks = <&clk_s_a0_ls CLK_ICN_REG>, <&clk_s_a0_ls CLK_ETH1_PHY>; }; rc: rc@fe518000 { diff --git a/arch/arm/common/scoop.c b/arch/arm/common/scoop.c index 6ef146edd0cd..a20fa80776d3 100644 --- a/arch/arm/common/scoop.c +++ b/arch/arm/common/scoop.c @@ -182,7 +182,6 @@ static int scoop_probe(struct platform_device *pdev) struct scoop_config *inf; struct resource *mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); int ret; - int temp; if (!mem) return -EINVAL; diff --git a/arch/arm/configs/imx_v6_v7_defconfig b/arch/arm/configs/imx_v6_v7_defconfig index ef8815327e5b..59b7e45142d8 100644 --- a/arch/arm/configs/imx_v6_v7_defconfig +++ b/arch/arm/configs/imx_v6_v7_defconfig @@ -186,6 +186,7 @@ CONFIG_VIDEO_MX3=y CONFIG_V4L_MEM2MEM_DRIVERS=y CONFIG_VIDEO_CODA=y CONFIG_SOC_CAMERA_OV2640=y +CONFIG_IMX_IPUV3_CORE=y CONFIG_DRM=y CONFIG_DRM_PANEL_SIMPLE=y CONFIG_BACKLIGHT_LCD_SUPPORT=y diff --git a/arch/arm/configs/multi_v7_defconfig b/arch/arm/configs/multi_v7_defconfig index 17d9462b9fb9..be1a3455a9fe 100644 --- a/arch/arm/configs/multi_v7_defconfig +++ b/arch/arm/configs/multi_v7_defconfig @@ -353,6 +353,7 @@ CONFIG_MFD_NVEC=y CONFIG_KEYBOARD_NVEC=y CONFIG_SERIO_NVEC_PS2=y CONFIG_NVEC_POWER=y +CONFIG_QCOM_GSBI=y CONFIG_COMMON_CLK_QCOM=y CONFIG_MSM_GCC_8660=y CONFIG_MSM_MMCC_8960=y diff --git a/arch/arm/configs/mvebu_v7_defconfig b/arch/arm/configs/mvebu_v7_defconfig index e11170e37442..b0bfefa23902 100644 --- a/arch/arm/configs/mvebu_v7_defconfig +++ b/arch/arm/configs/mvebu_v7_defconfig @@ -14,6 +14,7 @@ CONFIG_MACH_ARMADA_370=y CONFIG_MACH_ARMADA_375=y CONFIG_MACH_ARMADA_38X=y CONFIG_MACH_ARMADA_XP=y +CONFIG_MACH_DOVE=y CONFIG_NEON=y # CONFIG_CACHE_L2X0 is not set # CONFIG_SWP_EMULATE is not set @@ -52,6 +53,7 @@ CONFIG_INPUT_EVDEV=y CONFIG_KEYBOARD_GPIO=y CONFIG_SERIAL_8250=y CONFIG_SERIAL_8250_CONSOLE=y +CONFIG_SERIAL_OF_PLATFORM=y CONFIG_I2C=y CONFIG_SPI=y CONFIG_SPI_ORION=y diff --git a/arch/arm/include/asm/mcpm.h b/arch/arm/include/asm/mcpm.h index d9702eb0b02b..94060adba174 100644 --- a/arch/arm/include/asm/mcpm.h +++ b/arch/arm/include/asm/mcpm.h @@ -208,8 +208,6 @@ struct sync_struct { struct mcpm_sync_struct clusters[MAX_NR_CLUSTERS]; }; -extern unsigned long sync_phys; /* physical address of *mcpm_sync */ - void __mcpm_cpu_going_down(unsigned int cpu, unsigned int cluster); void __mcpm_cpu_down(unsigned int cpu, unsigned int cluster); void __mcpm_outbound_leave_critical(unsigned int cluster, int state); diff --git a/arch/arm/include/asm/thread_info.h b/arch/arm/include/asm/thread_info.h index f989d7c22dc5..e4e4208a9130 100644 --- a/arch/arm/include/asm/thread_info.h +++ b/arch/arm/include/asm/thread_info.h @@ -114,8 +114,14 @@ static inline struct thread_info *current_thread_info(void) ((unsigned long)(task_thread_info(tsk)->cpu_context.pc)) #define thread_saved_sp(tsk) \ ((unsigned long)(task_thread_info(tsk)->cpu_context.sp)) + +#ifndef CONFIG_THUMB2_KERNEL #define thread_saved_fp(tsk) \ ((unsigned long)(task_thread_info(tsk)->cpu_context.fp)) +#else +#define thread_saved_fp(tsk) \ + ((unsigned long)(task_thread_info(tsk)->cpu_context.r7)) +#endif extern void crunch_task_disable(struct thread_info *); extern void crunch_task_copy(struct thread_info *, void *); diff --git a/arch/arm/kernel/perf_event_v7.c b/arch/arm/kernel/perf_event_v7.c index 2037f7205987..1d37568c547a 100644 --- a/arch/arm/kernel/perf_event_v7.c +++ b/arch/arm/kernel/perf_event_v7.c @@ -1924,7 +1924,7 @@ static int krait_pmu_get_event_idx(struct pmu_hw_events *cpuc, struct perf_event *event) { int idx; - int bit; + int bit = -1; unsigned int prefix; unsigned int region; unsigned int code; @@ -1953,7 +1953,7 @@ static int krait_pmu_get_event_idx(struct pmu_hw_events *cpuc, } idx = armv7pmu_get_event_idx(cpuc, event); - if (idx < 0 && krait_event) + if (idx < 0 && bit >= 0) clear_bit(bit, cpuc->used_mask); return idx; diff --git a/arch/arm/kernel/ptrace.c b/arch/arm/kernel/ptrace.c index 0dd3b79b15c3..0c27ed6f3f23 100644 --- a/arch/arm/kernel/ptrace.c +++ b/arch/arm/kernel/ptrace.c @@ -908,7 +908,7 @@ enum ptrace_syscall_dir { PTRACE_SYSCALL_EXIT, }; -static int tracehook_report_syscall(struct pt_regs *regs, +static void tracehook_report_syscall(struct pt_regs *regs, enum ptrace_syscall_dir dir) { unsigned long ip; @@ -926,7 +926,6 @@ static int tracehook_report_syscall(struct pt_regs *regs, current_thread_info()->syscall = -1; regs->ARM_ip = ip; - return current_thread_info()->syscall; } asmlinkage int syscall_trace_enter(struct pt_regs *regs, int scno) @@ -938,7 +937,9 @@ asmlinkage int syscall_trace_enter(struct pt_regs *regs, int scno) return -1; if (test_thread_flag(TIF_SYSCALL_TRACE)) - scno = tracehook_report_syscall(regs, PTRACE_SYSCALL_ENTER); + tracehook_report_syscall(regs, PTRACE_SYSCALL_ENTER); + + scno = current_thread_info()->syscall; if (test_thread_flag(TIF_SYSCALL_TRACEPOINT)) trace_sys_enter(regs, scno); diff --git a/arch/arm/mach-exynos/hotplug.c b/arch/arm/mach-exynos/hotplug.c index 69fa48397394..8a134d019cb3 100644 --- a/arch/arm/mach-exynos/hotplug.c +++ b/arch/arm/mach-exynos/hotplug.c @@ -46,13 +46,7 @@ static inline void platform_do_lowpower(unsigned int cpu, int *spurious) if (cpu == 1) exynos_cpu_power_down(cpu); - /* - * here's the WFI - */ - asm(".word 0xe320f003\n" - : - : - : "memory", "cc"); + wfi(); if (pen_release == cpu_logical_map(cpu)) { /* diff --git a/arch/arm/mach-exynos/mcpm-exynos.c b/arch/arm/mach-exynos/mcpm-exynos.c index 0498d0b887ef..ace0ed617476 100644 --- a/arch/arm/mach-exynos/mcpm-exynos.c +++ b/arch/arm/mach-exynos/mcpm-exynos.c @@ -25,7 +25,6 @@ #define EXYNOS5420_CPUS_PER_CLUSTER 4 #define EXYNOS5420_NR_CLUSTERS 2 -#define MCPM_BOOT_ADDR_OFFSET 0x1c /* * The common v7_exit_coherency_flush API could not be used because of the @@ -343,11 +342,13 @@ static int __init exynos_mcpm_init(void) pr_info("Exynos MCPM support installed\n"); /* - * Future entries into the kernel can now go - * through the cluster entry vectors. + * U-Boot SPL is hardcoded to jump to the start of ns_sram_base_addr + * as part of secondary_cpu_start(). Let's redirect it to the + * mcpm_entry_point(). */ - __raw_writel(virt_to_phys(mcpm_entry_point), - ns_sram_base_addr + MCPM_BOOT_ADDR_OFFSET); + __raw_writel(0xe59f0000, ns_sram_base_addr); /* ldr r0, [pc, #0] */ + __raw_writel(0xe12fff10, ns_sram_base_addr + 4); /* bx r0 */ + __raw_writel(virt_to_phys(mcpm_entry_point), ns_sram_base_addr + 8); iounmap(ns_sram_base_addr); diff --git a/arch/arm/mach-exynos/pm.c b/arch/arm/mach-exynos/pm.c index 87c0d34c7fba..202ca73e49c4 100644 --- a/arch/arm/mach-exynos/pm.c +++ b/arch/arm/mach-exynos/pm.c @@ -300,7 +300,7 @@ static int exynos_pm_suspend(void) tmp = (S5P_USE_STANDBY_WFI0 | S5P_USE_STANDBY_WFE0); __raw_writel(tmp, S5P_CENTRAL_SEQ_OPTION); - if (!soc_is_exynos5250()) + if (read_cpuid_part_number() == ARM_CPU_PART_CORTEX_A9) exynos_cpu_save_register(); return 0; @@ -334,7 +334,7 @@ static void exynos_pm_resume(void) if (exynos_pm_central_resume()) goto early_wakeup; - if (!soc_is_exynos5250()) + if (read_cpuid_part_number() == ARM_CPU_PART_CORTEX_A9) exynos_cpu_restore_register(); /* For release retention */ @@ -353,7 +353,7 @@ static void exynos_pm_resume(void) s3c_pm_do_restore_core(exynos_core_save, ARRAY_SIZE(exynos_core_save)); - if (!soc_is_exynos5250()) + if (read_cpuid_part_number() == ARM_CPU_PART_CORTEX_A9) scu_enable(S5P_VA_SCU); early_wakeup: @@ -440,15 +440,18 @@ static int exynos_cpu_pm_notifier(struct notifier_block *self, case CPU_PM_ENTER: if (cpu == 0) { exynos_pm_central_suspend(); - exynos_cpu_save_register(); + if (read_cpuid_part_number() == ARM_CPU_PART_CORTEX_A9) + exynos_cpu_save_register(); } break; case CPU_PM_EXIT: if (cpu == 0) { - if (!soc_is_exynos5250()) + if (read_cpuid_part_number() == + ARM_CPU_PART_CORTEX_A9) { scu_enable(S5P_VA_SCU); - exynos_cpu_restore_register(); + exynos_cpu_restore_register(); + } exynos_pm_central_resume(); } break; diff --git a/arch/arm/mach-imx/Kconfig b/arch/arm/mach-imx/Kconfig index 28fa2fa49e5d..4b5185748f74 100644 --- a/arch/arm/mach-imx/Kconfig +++ b/arch/arm/mach-imx/Kconfig @@ -734,9 +734,9 @@ config SOC_IMX6 select HAVE_IMX_MMDC select HAVE_IMX_SRC select MFD_SYSCON - select PL310_ERRATA_588369 if CACHE_PL310 - select PL310_ERRATA_727915 if CACHE_PL310 - select PL310_ERRATA_769419 if CACHE_PL310 + select PL310_ERRATA_588369 if CACHE_L2X0 + select PL310_ERRATA_727915 if CACHE_L2X0 + select PL310_ERRATA_769419 if CACHE_L2X0 config SOC_IMX6Q bool "i.MX6 Quad/DualLite support" @@ -771,9 +771,9 @@ config SOC_VF610 select ARM_GIC select PINCTRL_VF610 select VF_PIT_TIMER - select PL310_ERRATA_588369 if CACHE_PL310 - select PL310_ERRATA_727915 if CACHE_PL310 - select PL310_ERRATA_769419 if CACHE_PL310 + select PL310_ERRATA_588369 if CACHE_L2X0 + select PL310_ERRATA_727915 if CACHE_L2X0 + select PL310_ERRATA_769419 if CACHE_L2X0 help This enable support for Freescale Vybrid VF610 processor. diff --git a/arch/arm/mach-imx/clk-imx6sl.c b/arch/arm/mach-imx/clk-imx6sl.c index 21cf06cebade..5408ca70c8d6 100644 --- a/arch/arm/mach-imx/clk-imx6sl.c +++ b/arch/arm/mach-imx/clk-imx6sl.c @@ -312,6 +312,7 @@ static void __init imx6sl_clocks_init(struct device_node *ccm_node) clks[IMX6SL_CLK_ECSPI2] = imx_clk_gate2("ecspi2", "ecspi_root", base + 0x6c, 2); clks[IMX6SL_CLK_ECSPI3] = imx_clk_gate2("ecspi3", "ecspi_root", base + 0x6c, 4); clks[IMX6SL_CLK_ECSPI4] = imx_clk_gate2("ecspi4", "ecspi_root", base + 0x6c, 6); + clks[IMX6SL_CLK_ENET] = imx_clk_gate2("enet", "ipg", base + 0x6c, 10); clks[IMX6SL_CLK_EPIT1] = imx_clk_gate2("epit1", "perclk", base + 0x6c, 12); clks[IMX6SL_CLK_EPIT2] = imx_clk_gate2("epit2", "perclk", base + 0x6c, 14); clks[IMX6SL_CLK_EXTERN_AUDIO] = imx_clk_gate2("extern_audio", "extern_audio_podf", base + 0x6c, 16); diff --git a/arch/arm/mach-integrator/integrator_ap.c b/arch/arm/mach-integrator/integrator_ap.c index dd0cc677d596..660ca6feff40 100644 --- a/arch/arm/mach-integrator/integrator_ap.c +++ b/arch/arm/mach-integrator/integrator_ap.c @@ -480,25 +480,18 @@ static const struct of_device_id ebi_match[] = { static void __init ap_init_of(void) { unsigned long sc_dec; - struct device_node *root; struct device_node *syscon; struct device_node *ebi; struct device *parent; struct soc_device *soc_dev; struct soc_device_attribute *soc_dev_attr; u32 ap_sc_id; - int err; int i; - /* Here we create an SoC device for the root node */ - root = of_find_node_by_path("/"); - if (!root) - return; - - syscon = of_find_matching_node(root, ap_syscon_match); + syscon = of_find_matching_node(NULL, ap_syscon_match); if (!syscon) return; - ebi = of_find_matching_node(root, ebi_match); + ebi = of_find_matching_node(NULL, ebi_match); if (!ebi) return; @@ -509,19 +502,17 @@ static void __init ap_init_of(void) if (!ebi_base) return; + of_platform_populate(NULL, of_default_bus_match_table, + ap_auxdata_lookup, NULL); + ap_sc_id = readl(ap_syscon_base); soc_dev_attr = kzalloc(sizeof(*soc_dev_attr), GFP_KERNEL); if (!soc_dev_attr) return; - err = of_property_read_string(root, "compatible", - &soc_dev_attr->soc_id); - if (err) - return; - err = of_property_read_string(root, "model", &soc_dev_attr->machine); - if (err) - return; + soc_dev_attr->soc_id = "XVC"; + soc_dev_attr->machine = "Integrator/AP"; soc_dev_attr->family = "Integrator"; soc_dev_attr->revision = kasprintf(GFP_KERNEL, "%c", 'A' + (ap_sc_id & 0x0f)); @@ -536,9 +527,6 @@ static void __init ap_init_of(void) parent = soc_device_to_device(soc_dev); integrator_init_sysfs(parent, ap_sc_id); - of_platform_populate(root, of_default_bus_match_table, - ap_auxdata_lookup, parent); - sc_dec = readl(ap_syscon_base + INTEGRATOR_SC_DEC_OFFSET); for (i = 0; i < 4; i++) { struct lm_device *lmdev; diff --git a/arch/arm/mach-integrator/integrator_cp.c b/arch/arm/mach-integrator/integrator_cp.c index a938242b0c95..0e57f8f820a5 100644 --- a/arch/arm/mach-integrator/integrator_cp.c +++ b/arch/arm/mach-integrator/integrator_cp.c @@ -279,20 +279,13 @@ static const struct of_device_id intcp_syscon_match[] = { static void __init intcp_init_of(void) { - struct device_node *root; struct device_node *cpcon; struct device *parent; struct soc_device *soc_dev; struct soc_device_attribute *soc_dev_attr; u32 intcp_sc_id; - int err; - /* Here we create an SoC device for the root node */ - root = of_find_node_by_path("/"); - if (!root) - return; - - cpcon = of_find_matching_node(root, intcp_syscon_match); + cpcon = of_find_matching_node(NULL, intcp_syscon_match); if (!cpcon) return; @@ -300,19 +293,17 @@ static void __init intcp_init_of(void) if (!intcp_con_base) return; + of_platform_populate(NULL, of_default_bus_match_table, + intcp_auxdata_lookup, NULL); + intcp_sc_id = readl(intcp_con_base); soc_dev_attr = kzalloc(sizeof(*soc_dev_attr), GFP_KERNEL); if (!soc_dev_attr) return; - err = of_property_read_string(root, "compatible", - &soc_dev_attr->soc_id); - if (err) - return; - err = of_property_read_string(root, "model", &soc_dev_attr->machine); - if (err) - return; + soc_dev_attr->soc_id = "XCV"; + soc_dev_attr->machine = "Integrator/CP"; soc_dev_attr->family = "Integrator"; soc_dev_attr->revision = kasprintf(GFP_KERNEL, "%c", 'A' + (intcp_sc_id & 0x0f)); @@ -326,8 +317,6 @@ static void __init intcp_init_of(void) parent = soc_device_to_device(soc_dev); integrator_init_sysfs(parent, intcp_sc_id); - of_platform_populate(root, of_default_bus_match_table, - intcp_auxdata_lookup, parent); } static const char * intcp_dt_board_compat[] = { diff --git a/arch/arm/mach-mvebu/Kconfig b/arch/arm/mach-mvebu/Kconfig index 4a7c250c9a30..b9bc599a5fd0 100644 --- a/arch/arm/mach-mvebu/Kconfig +++ b/arch/arm/mach-mvebu/Kconfig @@ -10,6 +10,7 @@ menuconfig ARCH_MVEBU select ZONE_DMA if ARM_LPAE select ARCH_REQUIRE_GPIOLIB select PCI_QUIRKS if PCI + select OF_ADDRESS_PCI if ARCH_MVEBU @@ -17,6 +18,7 @@ config MACH_MVEBU_V7 bool select ARMADA_370_XP_TIMER select CACHE_L2X0 + select ARM_CPU_SUSPEND config MACH_ARMADA_370 bool "Marvell Armada 370 boards" if ARCH_MULTI_V7 diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig index 062505345c95..1c1ed737f7ab 100644 --- a/arch/arm/mach-omap2/Kconfig +++ b/arch/arm/mach-omap2/Kconfig @@ -34,8 +34,8 @@ config ARCH_OMAP4 select HAVE_ARM_SCU if SMP select HAVE_ARM_TWD if SMP select OMAP_INTERCONNECT - select PL310_ERRATA_588369 - select PL310_ERRATA_727915 + select PL310_ERRATA_588369 if CACHE_L2X0 + select PL310_ERRATA_727915 if CACHE_L2X0 select PM_OPP if PM select PM_RUNTIME if CPU_IDLE select ARM_ERRATA_754322 diff --git a/arch/arm/mach-sa1100/collie.c b/arch/arm/mach-sa1100/collie.c index f9874ba60cc8..108939f8d053 100644 --- a/arch/arm/mach-sa1100/collie.c +++ b/arch/arm/mach-sa1100/collie.c @@ -329,6 +329,11 @@ static struct mtd_partition collie_partitions[] = { .name = "rootfs", .offset = MTDPART_OFS_APPEND, .size = 0x00e20000, + }, { + .name = "bootblock", + .offset = MTDPART_OFS_APPEND, + .size = 0x00020000, + .mask_flags = MTD_WRITEABLE } }; @@ -356,7 +361,7 @@ static void collie_flash_exit(void) } static struct flash_platform_data collie_flash_data = { - .map_name = "jedec_probe", + .map_name = "cfi_probe", .init = collie_flash_init, .set_vpp = collie_set_vpp, .exit = collie_flash_exit, diff --git a/arch/arm/mach-sti/Kconfig b/arch/arm/mach-sti/Kconfig index 7e33e9d2c42e..878e9ec97d0f 100644 --- a/arch/arm/mach-sti/Kconfig +++ b/arch/arm/mach-sti/Kconfig @@ -11,8 +11,8 @@ menuconfig ARCH_STI select ARM_ERRATA_754322 select ARM_ERRATA_764369 if SMP select ARM_ERRATA_775420 - select PL310_ERRATA_753970 if CACHE_PL310 - select PL310_ERRATA_769419 if CACHE_PL310 + select PL310_ERRATA_753970 if CACHE_L2X0 + select PL310_ERRATA_769419 if CACHE_L2X0 help Include support for STiH41x SOCs like STiH415/416 using the device tree for discovery diff --git a/arch/arm/mach-ux500/Kconfig b/arch/arm/mach-ux500/Kconfig index 5be7c4583a93..699e8601dbf0 100644 --- a/arch/arm/mach-ux500/Kconfig +++ b/arch/arm/mach-ux500/Kconfig @@ -15,7 +15,7 @@ menuconfig ARCH_U8500 select PINCTRL select PINCTRL_ABX500 select PINCTRL_NOMADIK - select PL310_ERRATA_753970 if CACHE_PL310 + select PL310_ERRATA_753970 if CACHE_L2X0 help Support for ST-Ericsson's Ux500 architecture diff --git a/arch/arm/mach-vexpress/Kconfig b/arch/arm/mach-vexpress/Kconfig index 99c1f151c403..d8b9330f896a 100644 --- a/arch/arm/mach-vexpress/Kconfig +++ b/arch/arm/mach-vexpress/Kconfig @@ -43,7 +43,7 @@ config ARCH_VEXPRESS_CORTEX_A5_A9_ERRATA bool "Enable A5 and A9 only errata work-arounds" default y select ARM_ERRATA_720789 - select PL310_ERRATA_753970 if CACHE_PL310 + select PL310_ERRATA_753970 if CACHE_L2X0 help Provides common dependencies for Versatile Express platforms based on Cortex-A5 and Cortex-A9 processors. In order to diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig index eda0dd0ab97b..c348eaee7ee2 100644 --- a/arch/arm/mm/Kconfig +++ b/arch/arm/mm/Kconfig @@ -889,9 +889,10 @@ config CACHE_L2X0 help This option enables the L2x0 PrimeCell. +if CACHE_L2X0 + config CACHE_PL310 bool - depends on CACHE_L2X0 default y if CPU_V7 && !(CPU_V6 || CPU_V6K) help This option enables optimisations for the PL310 cache @@ -899,7 +900,6 @@ config CACHE_PL310 config PL310_ERRATA_588369 bool "PL310 errata: Clean & Invalidate maintenance operations do not invalidate clean lines" - depends on CACHE_L2X0 help The PL310 L2 cache controller implements three types of Clean & Invalidate maintenance operations: by Physical Address @@ -912,7 +912,6 @@ config PL310_ERRATA_588369 config PL310_ERRATA_727915 bool "PL310 errata: Background Clean & Invalidate by Way operation can cause data corruption" - depends on CACHE_L2X0 help PL310 implements the Clean & Invalidate by Way L2 cache maintenance operation (offset 0x7FC). This operation runs in background so that @@ -923,7 +922,6 @@ config PL310_ERRATA_727915 config PL310_ERRATA_753970 bool "PL310 errata: cache sync operation may be faulty" - depends on CACHE_PL310 help This option enables the workaround for the 753970 PL310 (r3p0) erratum. @@ -938,7 +936,6 @@ config PL310_ERRATA_753970 config PL310_ERRATA_769419 bool "PL310 errata: no automatic Store Buffer drain" - depends on CACHE_L2X0 help On revisions of the PL310 prior to r3p2, the Store Buffer does not automatically drain. This can cause normal, non-cacheable @@ -948,6 +945,8 @@ config PL310_ERRATA_769419 on systems with an outer cache, the store buffer is drained explicitly. +endif + config CACHE_TAUROS2 bool "Enable the Tauros2 L2 cache controller" depends on (ARCH_DOVE || ARCH_MMP || CPU_PJ4) diff --git a/arch/arm/mm/cache-l2x0.c b/arch/arm/mm/cache-l2x0.c index efc5cabf70e0..076172b69422 100644 --- a/arch/arm/mm/cache-l2x0.c +++ b/arch/arm/mm/cache-l2x0.c @@ -1069,6 +1069,33 @@ static const struct l2c_init_data of_l2c310_data __initconst = { }; /* + * This is a variant of the of_l2c310_data with .sync set to + * NULL. Outer sync operations are not needed when the system is I/O + * coherent, and potentially harmful in certain situations (PCIe/PL310 + * deadlock on Armada 375/38x due to hardware I/O coherency). The + * other operations are kept because they are infrequent (therefore do + * not cause the deadlock in practice) and needed for secondary CPU + * boot and other power management activities. + */ +static const struct l2c_init_data of_l2c310_coherent_data __initconst = { + .type = "L2C-310 Coherent", + .way_size_0 = SZ_8K, + .num_lock = 8, + .of_parse = l2c310_of_parse, + .enable = l2c310_enable, + .fixup = l2c310_fixup, + .save = l2c310_save, + .outer_cache = { + .inv_range = l2c210_inv_range, + .clean_range = l2c210_clean_range, + .flush_range = l2c210_flush_range, + .flush_all = l2c210_flush_all, + .disable = l2c310_disable, + .resume = l2c310_resume, + }, +}; + +/* * Note that the end addresses passed to Linux primitives are * noninclusive, while the hardware cache range operations use * inclusive start and end addresses. @@ -1487,6 +1514,10 @@ int __init l2x0_of_init(u32 aux_val, u32 aux_mask) data = of_match_node(l2x0_ids, np)->data; + if (of_device_is_compatible(np, "arm,pl310-cache") && + of_property_read_bool(np, "arm,io-coherent")) + data = &of_l2c310_coherent_data; + old_aux = readl_relaxed(l2x0_base + L2X0_AUX_CTRL); if (old_aux != ((old_aux & aux_mask) | aux_val)) { pr_warn("L2C: platform modifies aux control register: 0x%08x -> 0x%08x\n", diff --git a/arch/arm/mm/nommu.c b/arch/arm/mm/nommu.c index da1874f9f8cf..a014dfacd5ca 100644 --- a/arch/arm/mm/nommu.c +++ b/arch/arm/mm/nommu.c @@ -300,6 +300,7 @@ void __init sanity_check_meminfo(void) sanity_check_meminfo_mpu(); end = memblock_end_of_DRAM(); high_memory = __va(end - 1) + 1; + memblock_set_current_limit(end); } /* diff --git a/arch/arm/mm/proc-arm925.S b/arch/arm/mm/proc-arm925.S index 97448c3acf38..ba0d58e1a2a2 100644 --- a/arch/arm/mm/proc-arm925.S +++ b/arch/arm/mm/proc-arm925.S @@ -502,6 +502,7 @@ __\name\()_proc_info: .long \cpu_val .long \cpu_mask .long PMD_TYPE_SECT | \ + PMD_SECT_CACHEABLE | \ PMD_BIT4 | \ PMD_SECT_AP_WRITE | \ PMD_SECT_AP_READ diff --git a/arch/ia64/include/uapi/asm/fcntl.h b/arch/ia64/include/uapi/asm/fcntl.h index 1dd275dc8f65..7b485876cad4 100644 --- a/arch/ia64/include/uapi/asm/fcntl.h +++ b/arch/ia64/include/uapi/asm/fcntl.h @@ -8,6 +8,7 @@ #define force_o_largefile() \ (personality(current->personality) != PER_LINUX32) +#include <linux/personality.h> #include <asm-generic/fcntl.h> #endif /* _ASM_IA64_FCNTL_H */ diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index 7a469acee33c..4e238e6e661c 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -269,6 +269,7 @@ config LANTIQ config LASAT bool "LASAT Networks platforms" select CEVT_R4K + select CRC32 select CSRC_R4K select DMA_NONCOHERENT select SYS_HAS_EARLY_PRINTK diff --git a/arch/mips/include/asm/sigcontext.h b/arch/mips/include/asm/sigcontext.h index f54bdbe85c0d..eeeb0f48c767 100644 --- a/arch/mips/include/asm/sigcontext.h +++ b/arch/mips/include/asm/sigcontext.h @@ -32,8 +32,6 @@ struct sigcontext32 { __u32 sc_lo2; __u32 sc_hi3; __u32 sc_lo3; - __u64 sc_msaregs[32]; /* Most significant 64 bits */ - __u32 sc_msa_csr; }; #endif /* _MIPS_SIM == _MIPS_SIM_ABI64 || _MIPS_SIM == _MIPS_SIM_NABI32 */ #endif /* _ASM_SIGCONTEXT_H */ diff --git a/arch/mips/include/asm/uasm.h b/arch/mips/include/asm/uasm.h index f8d63b3b40b4..708c5d414905 100644 --- a/arch/mips/include/asm/uasm.h +++ b/arch/mips/include/asm/uasm.h @@ -67,6 +67,9 @@ void ISAOPC(op)(u32 **buf, unsigned int a, unsigned int b, signed int c) #define Ip_u2s3u1(op) \ void ISAOPC(op)(u32 **buf, unsigned int a, signed int b, unsigned int c) +#define Ip_s3s1s2(op) \ +void ISAOPC(op)(u32 **buf, int a, int b, int c) + #define Ip_u2u1s3(op) \ void ISAOPC(op)(u32 **buf, unsigned int a, unsigned int b, signed int c) @@ -147,6 +150,7 @@ Ip_u2s3u1(_scd); Ip_u2s3u1(_sd); Ip_u2u1u3(_sll); Ip_u3u2u1(_sllv); +Ip_s3s1s2(_slt); Ip_u2u1s3(_sltiu); Ip_u3u1u2(_sltu); Ip_u2u1u3(_sra); diff --git a/arch/mips/include/uapi/asm/inst.h b/arch/mips/include/uapi/asm/inst.h index 4b7160259292..4bfdb9d4c186 100644 --- a/arch/mips/include/uapi/asm/inst.h +++ b/arch/mips/include/uapi/asm/inst.h @@ -273,6 +273,7 @@ enum mm_32a_minor_op { mm_and_op = 0x250, mm_or32_op = 0x290, mm_xor32_op = 0x310, + mm_slt_op = 0x350, mm_sltu_op = 0x390, }; diff --git a/arch/mips/include/uapi/asm/sigcontext.h b/arch/mips/include/uapi/asm/sigcontext.h index 681c17603a48..6c9906f59c6e 100644 --- a/arch/mips/include/uapi/asm/sigcontext.h +++ b/arch/mips/include/uapi/asm/sigcontext.h @@ -12,10 +12,6 @@ #include <linux/types.h> #include <asm/sgidefs.h> -/* Bits which may be set in sc_used_math */ -#define USEDMATH_FP (1 << 0) -#define USEDMATH_MSA (1 << 1) - #if _MIPS_SIM == _MIPS_SIM_ABI32 /* @@ -41,8 +37,6 @@ struct sigcontext { unsigned long sc_lo2; unsigned long sc_hi3; unsigned long sc_lo3; - unsigned long long sc_msaregs[32]; /* Most significant 64 bits */ - unsigned long sc_msa_csr; }; #endif /* _MIPS_SIM == _MIPS_SIM_ABI32 */ @@ -76,8 +70,6 @@ struct sigcontext { __u32 sc_used_math; __u32 sc_dsp; __u32 sc_reserved; - __u64 sc_msaregs[32]; - __u32 sc_msa_csr; }; diff --git a/arch/mips/kernel/asm-offsets.c b/arch/mips/kernel/asm-offsets.c index 02f075df8f2e..4bb5107511e2 100644 --- a/arch/mips/kernel/asm-offsets.c +++ b/arch/mips/kernel/asm-offsets.c @@ -293,7 +293,6 @@ void output_sc_defines(void) OFFSET(SC_LO2, sigcontext, sc_lo2); OFFSET(SC_HI3, sigcontext, sc_hi3); OFFSET(SC_LO3, sigcontext, sc_lo3); - OFFSET(SC_MSAREGS, sigcontext, sc_msaregs); BLANK(); } #endif @@ -308,7 +307,6 @@ void output_sc_defines(void) OFFSET(SC_MDLO, sigcontext, sc_mdlo); OFFSET(SC_PC, sigcontext, sc_pc); OFFSET(SC_FPC_CSR, sigcontext, sc_fpc_csr); - OFFSET(SC_MSAREGS, sigcontext, sc_msaregs); BLANK(); } #endif @@ -320,7 +318,6 @@ void output_sc32_defines(void) OFFSET(SC32_FPREGS, sigcontext32, sc_fpregs); OFFSET(SC32_FPC_CSR, sigcontext32, sc_fpc_csr); OFFSET(SC32_FPC_EIR, sigcontext32, sc_fpc_eir); - OFFSET(SC32_MSAREGS, sigcontext32, sc_msaregs); BLANK(); } #endif diff --git a/arch/mips/kernel/irq-msc01.c b/arch/mips/kernel/irq-msc01.c index 4858642d543d..a734b2c2f9ea 100644 --- a/arch/mips/kernel/irq-msc01.c +++ b/arch/mips/kernel/irq-msc01.c @@ -126,7 +126,7 @@ void __init init_msc_irqs(unsigned long icubase, unsigned int irqbase, msc_irqma board_bind_eic_interrupt = &msc_bind_eic_interrupt; - for (; nirq >= 0; nirq--, imp++) { + for (; nirq > 0; nirq--, imp++) { int n = imp->im_irq; switch (imp->im_type) { diff --git a/arch/mips/kernel/pm-cps.c b/arch/mips/kernel/pm-cps.c index 5aa4c6f8cf83..c4c2069d3a20 100644 --- a/arch/mips/kernel/pm-cps.c +++ b/arch/mips/kernel/pm-cps.c @@ -101,7 +101,7 @@ static void coupled_barrier(atomic_t *a, unsigned online) if (!coupled_coherence) return; - smp_mb__before_atomic_inc(); + smp_mb__before_atomic(); atomic_inc(a); while (atomic_read(a) < online) @@ -158,7 +158,7 @@ int cps_pm_enter_state(enum cps_pm_state state) /* Indicate that this CPU might not be coherent */ cpumask_clear_cpu(cpu, &cpu_coherent_mask); - smp_mb__after_clear_bit(); + smp_mb__after_atomic(); /* Create a non-coherent mapping of the core ready_count */ core_ready_count = per_cpu(ready_count, core); diff --git a/arch/mips/kernel/r4k_fpu.S b/arch/mips/kernel/r4k_fpu.S index 71814272d148..8352523568e6 100644 --- a/arch/mips/kernel/r4k_fpu.S +++ b/arch/mips/kernel/r4k_fpu.S @@ -13,7 +13,6 @@ * Copyright (C) 1999, 2001 Silicon Graphics, Inc. */ #include <asm/asm.h> -#include <asm/asmmacro.h> #include <asm/errno.h> #include <asm/fpregdef.h> #include <asm/mipsregs.h> @@ -246,218 +245,6 @@ LEAF(_restore_fp_context32) END(_restore_fp_context32) #endif -#ifdef CONFIG_CPU_HAS_MSA - - .macro save_sc_msareg wr, off, sc, tmp -#ifdef CONFIG_64BIT - copy_u_d \tmp, \wr, 1 - EX sd \tmp, (\off+(\wr*8))(\sc) -#elif defined(CONFIG_CPU_LITTLE_ENDIAN) - copy_u_w \tmp, \wr, 2 - EX sw \tmp, (\off+(\wr*8)+0)(\sc) - copy_u_w \tmp, \wr, 3 - EX sw \tmp, (\off+(\wr*8)+4)(\sc) -#else /* CONFIG_CPU_BIG_ENDIAN */ - copy_u_w \tmp, \wr, 2 - EX sw \tmp, (\off+(\wr*8)+4)(\sc) - copy_u_w \tmp, \wr, 3 - EX sw \tmp, (\off+(\wr*8)+0)(\sc) -#endif - .endm - -/* - * int _save_msa_context(struct sigcontext *sc) - * - * Save the upper 64 bits of each vector register along with the MSA_CSR - * register into sc. Returns zero on success, else non-zero. - */ -LEAF(_save_msa_context) - save_sc_msareg 0, SC_MSAREGS, a0, t0 - save_sc_msareg 1, SC_MSAREGS, a0, t0 - save_sc_msareg 2, SC_MSAREGS, a0, t0 - save_sc_msareg 3, SC_MSAREGS, a0, t0 - save_sc_msareg 4, SC_MSAREGS, a0, t0 - save_sc_msareg 5, SC_MSAREGS, a0, t0 - save_sc_msareg 6, SC_MSAREGS, a0, t0 - save_sc_msareg 7, SC_MSAREGS, a0, t0 - save_sc_msareg 8, SC_MSAREGS, a0, t0 - save_sc_msareg 9, SC_MSAREGS, a0, t0 - save_sc_msareg 10, SC_MSAREGS, a0, t0 - save_sc_msareg 11, SC_MSAREGS, a0, t0 - save_sc_msareg 12, SC_MSAREGS, a0, t0 - save_sc_msareg 13, SC_MSAREGS, a0, t0 - save_sc_msareg 14, SC_MSAREGS, a0, t0 - save_sc_msareg 15, SC_MSAREGS, a0, t0 - save_sc_msareg 16, SC_MSAREGS, a0, t0 - save_sc_msareg 17, SC_MSAREGS, a0, t0 - save_sc_msareg 18, SC_MSAREGS, a0, t0 - save_sc_msareg 19, SC_MSAREGS, a0, t0 - save_sc_msareg 20, SC_MSAREGS, a0, t0 - save_sc_msareg 21, SC_MSAREGS, a0, t0 - save_sc_msareg 22, SC_MSAREGS, a0, t0 - save_sc_msareg 23, SC_MSAREGS, a0, t0 - save_sc_msareg 24, SC_MSAREGS, a0, t0 - save_sc_msareg 25, SC_MSAREGS, a0, t0 - save_sc_msareg 26, SC_MSAREGS, a0, t0 - save_sc_msareg 27, SC_MSAREGS, a0, t0 - save_sc_msareg 28, SC_MSAREGS, a0, t0 - save_sc_msareg 29, SC_MSAREGS, a0, t0 - save_sc_msareg 30, SC_MSAREGS, a0, t0 - save_sc_msareg 31, SC_MSAREGS, a0, t0 - jr ra - li v0, 0 - END(_save_msa_context) - -#ifdef CONFIG_MIPS32_COMPAT - -/* - * int _save_msa_context32(struct sigcontext32 *sc) - * - * Save the upper 64 bits of each vector register along with the MSA_CSR - * register into sc. Returns zero on success, else non-zero. - */ -LEAF(_save_msa_context32) - save_sc_msareg 0, SC32_MSAREGS, a0, t0 - save_sc_msareg 1, SC32_MSAREGS, a0, t0 - save_sc_msareg 2, SC32_MSAREGS, a0, t0 - save_sc_msareg 3, SC32_MSAREGS, a0, t0 - save_sc_msareg 4, SC32_MSAREGS, a0, t0 - save_sc_msareg 5, SC32_MSAREGS, a0, t0 - save_sc_msareg 6, SC32_MSAREGS, a0, t0 - save_sc_msareg 7, SC32_MSAREGS, a0, t0 - save_sc_msareg 8, SC32_MSAREGS, a0, t0 - save_sc_msareg 9, SC32_MSAREGS, a0, t0 - save_sc_msareg 10, SC32_MSAREGS, a0, t0 - save_sc_msareg 11, SC32_MSAREGS, a0, t0 - save_sc_msareg 12, SC32_MSAREGS, a0, t0 - save_sc_msareg 13, SC32_MSAREGS, a0, t0 - save_sc_msareg 14, SC32_MSAREGS, a0, t0 - save_sc_msareg 15, SC32_MSAREGS, a0, t0 - save_sc_msareg 16, SC32_MSAREGS, a0, t0 - save_sc_msareg 17, SC32_MSAREGS, a0, t0 - save_sc_msareg 18, SC32_MSAREGS, a0, t0 - save_sc_msareg 19, SC32_MSAREGS, a0, t0 - save_sc_msareg 20, SC32_MSAREGS, a0, t0 - save_sc_msareg 21, SC32_MSAREGS, a0, t0 - save_sc_msareg 22, SC32_MSAREGS, a0, t0 - save_sc_msareg 23, SC32_MSAREGS, a0, t0 - save_sc_msareg 24, SC32_MSAREGS, a0, t0 - save_sc_msareg 25, SC32_MSAREGS, a0, t0 - save_sc_msareg 26, SC32_MSAREGS, a0, t0 - save_sc_msareg 27, SC32_MSAREGS, a0, t0 - save_sc_msareg 28, SC32_MSAREGS, a0, t0 - save_sc_msareg 29, SC32_MSAREGS, a0, t0 - save_sc_msareg 30, SC32_MSAREGS, a0, t0 - save_sc_msareg 31, SC32_MSAREGS, a0, t0 - jr ra - li v0, 0 - END(_save_msa_context32) - -#endif /* CONFIG_MIPS32_COMPAT */ - - .macro restore_sc_msareg wr, off, sc, tmp -#ifdef CONFIG_64BIT - EX ld \tmp, (\off+(\wr*8))(\sc) - insert_d \wr, 1, \tmp -#elif defined(CONFIG_CPU_LITTLE_ENDIAN) - EX lw \tmp, (\off+(\wr*8)+0)(\sc) - insert_w \wr, 2, \tmp - EX lw \tmp, (\off+(\wr*8)+4)(\sc) - insert_w \wr, 3, \tmp -#else /* CONFIG_CPU_BIG_ENDIAN */ - EX lw \tmp, (\off+(\wr*8)+4)(\sc) - insert_w \wr, 2, \tmp - EX lw \tmp, (\off+(\wr*8)+0)(\sc) - insert_w \wr, 3, \tmp -#endif - .endm - -/* - * int _restore_msa_context(struct sigcontext *sc) - */ -LEAF(_restore_msa_context) - restore_sc_msareg 0, SC_MSAREGS, a0, t0 - restore_sc_msareg 1, SC_MSAREGS, a0, t0 - restore_sc_msareg 2, SC_MSAREGS, a0, t0 - restore_sc_msareg 3, SC_MSAREGS, a0, t0 - restore_sc_msareg 4, SC_MSAREGS, a0, t0 - restore_sc_msareg 5, SC_MSAREGS, a0, t0 - restore_sc_msareg 6, SC_MSAREGS, a0, t0 - restore_sc_msareg 7, SC_MSAREGS, a0, t0 - restore_sc_msareg 8, SC_MSAREGS, a0, t0 - restore_sc_msareg 9, SC_MSAREGS, a0, t0 - restore_sc_msareg 10, SC_MSAREGS, a0, t0 - restore_sc_msareg 11, SC_MSAREGS, a0, t0 - restore_sc_msareg 12, SC_MSAREGS, a0, t0 - restore_sc_msareg 13, SC_MSAREGS, a0, t0 - restore_sc_msareg 14, SC_MSAREGS, a0, t0 - restore_sc_msareg 15, SC_MSAREGS, a0, t0 - restore_sc_msareg 16, SC_MSAREGS, a0, t0 - restore_sc_msareg 17, SC_MSAREGS, a0, t0 - restore_sc_msareg 18, SC_MSAREGS, a0, t0 - restore_sc_msareg 19, SC_MSAREGS, a0, t0 - restore_sc_msareg 20, SC_MSAREGS, a0, t0 - restore_sc_msareg 21, SC_MSAREGS, a0, t0 - restore_sc_msareg 22, SC_MSAREGS, a0, t0 - restore_sc_msareg 23, SC_MSAREGS, a0, t0 - restore_sc_msareg 24, SC_MSAREGS, a0, t0 - restore_sc_msareg 25, SC_MSAREGS, a0, t0 - restore_sc_msareg 26, SC_MSAREGS, a0, t0 - restore_sc_msareg 27, SC_MSAREGS, a0, t0 - restore_sc_msareg 28, SC_MSAREGS, a0, t0 - restore_sc_msareg 29, SC_MSAREGS, a0, t0 - restore_sc_msareg 30, SC_MSAREGS, a0, t0 - restore_sc_msareg 31, SC_MSAREGS, a0, t0 - jr ra - li v0, 0 - END(_restore_msa_context) - -#ifdef CONFIG_MIPS32_COMPAT - -/* - * int _restore_msa_context32(struct sigcontext32 *sc) - */ -LEAF(_restore_msa_context32) - restore_sc_msareg 0, SC32_MSAREGS, a0, t0 - restore_sc_msareg 1, SC32_MSAREGS, a0, t0 - restore_sc_msareg 2, SC32_MSAREGS, a0, t0 - restore_sc_msareg 3, SC32_MSAREGS, a0, t0 - restore_sc_msareg 4, SC32_MSAREGS, a0, t0 - restore_sc_msareg 5, SC32_MSAREGS, a0, t0 - restore_sc_msareg 6, SC32_MSAREGS, a0, t0 - restore_sc_msareg 7, SC32_MSAREGS, a0, t0 - restore_sc_msareg 8, SC32_MSAREGS, a0, t0 - restore_sc_msareg 9, SC32_MSAREGS, a0, t0 - restore_sc_msareg 10, SC32_MSAREGS, a0, t0 - restore_sc_msareg 11, SC32_MSAREGS, a0, t0 - restore_sc_msareg 12, SC32_MSAREGS, a0, t0 - restore_sc_msareg 13, SC32_MSAREGS, a0, t0 - restore_sc_msareg 14, SC32_MSAREGS, a0, t0 - restore_sc_msareg 15, SC32_MSAREGS, a0, t0 - restore_sc_msareg 16, SC32_MSAREGS, a0, t0 - restore_sc_msareg 17, SC32_MSAREGS, a0, t0 - restore_sc_msareg 18, SC32_MSAREGS, a0, t0 - restore_sc_msareg 19, SC32_MSAREGS, a0, t0 - restore_sc_msareg 20, SC32_MSAREGS, a0, t0 - restore_sc_msareg 21, SC32_MSAREGS, a0, t0 - restore_sc_msareg 22, SC32_MSAREGS, a0, t0 - restore_sc_msareg 23, SC32_MSAREGS, a0, t0 - restore_sc_msareg 24, SC32_MSAREGS, a0, t0 - restore_sc_msareg 25, SC32_MSAREGS, a0, t0 - restore_sc_msareg 26, SC32_MSAREGS, a0, t0 - restore_sc_msareg 27, SC32_MSAREGS, a0, t0 - restore_sc_msareg 28, SC32_MSAREGS, a0, t0 - restore_sc_msareg 29, SC32_MSAREGS, a0, t0 - restore_sc_msareg 30, SC32_MSAREGS, a0, t0 - restore_sc_msareg 31, SC32_MSAREGS, a0, t0 - jr ra - li v0, 0 - END(_restore_msa_context32) - -#endif /* CONFIG_MIPS32_COMPAT */ - -#endif /* CONFIG_CPU_HAS_MSA */ - .set reorder .type fault@function diff --git a/arch/mips/kernel/signal.c b/arch/mips/kernel/signal.c index 33133d3df3e5..9e60d117e41e 100644 --- a/arch/mips/kernel/signal.c +++ b/arch/mips/kernel/signal.c @@ -31,7 +31,6 @@ #include <linux/bitops.h> #include <asm/cacheflush.h> #include <asm/fpu.h> -#include <asm/msa.h> #include <asm/sim.h> #include <asm/ucontext.h> #include <asm/cpu-features.h> @@ -48,9 +47,6 @@ static int (*restore_fp_context)(struct sigcontext __user *sc); extern asmlinkage int _save_fp_context(struct sigcontext __user *sc); extern asmlinkage int _restore_fp_context(struct sigcontext __user *sc); -extern asmlinkage int _save_msa_context(struct sigcontext __user *sc); -extern asmlinkage int _restore_msa_context(struct sigcontext __user *sc); - struct sigframe { u32 sf_ass[4]; /* argument save space for o32 */ u32 sf_pad[2]; /* Was: signal trampoline */ @@ -100,60 +96,20 @@ static int copy_fp_from_sigcontext(struct sigcontext __user *sc) } /* - * These functions will save only the upper 64 bits of the vector registers, - * since the lower 64 bits have already been saved as the scalar FP context. - */ -static int copy_msa_to_sigcontext(struct sigcontext __user *sc) -{ - int i; - int err = 0; - - for (i = 0; i < NUM_FPU_REGS; i++) { - err |= - __put_user(get_fpr64(¤t->thread.fpu.fpr[i], 1), - &sc->sc_msaregs[i]); - } - err |= __put_user(current->thread.fpu.msacsr, &sc->sc_msa_csr); - - return err; -} - -static int copy_msa_from_sigcontext(struct sigcontext __user *sc) -{ - int i; - int err = 0; - u64 val; - - for (i = 0; i < NUM_FPU_REGS; i++) { - err |= __get_user(val, &sc->sc_msaregs[i]); - set_fpr64(¤t->thread.fpu.fpr[i], 1, val); - } - err |= __get_user(current->thread.fpu.msacsr, &sc->sc_msa_csr); - - return err; -} - -/* * Helper routines */ -static int protected_save_fp_context(struct sigcontext __user *sc, - unsigned used_math) +static int protected_save_fp_context(struct sigcontext __user *sc) { int err; - bool save_msa = cpu_has_msa && (used_math & USEDMATH_MSA); #ifndef CONFIG_EVA while (1) { lock_fpu_owner(); if (is_fpu_owner()) { err = save_fp_context(sc); - if (save_msa && !err) - err = _save_msa_context(sc); unlock_fpu_owner(); } else { unlock_fpu_owner(); err = copy_fp_to_sigcontext(sc); - if (save_msa && !err) - err = copy_msa_to_sigcontext(sc); } if (likely(!err)) break; @@ -169,38 +125,24 @@ static int protected_save_fp_context(struct sigcontext __user *sc, * EVA does not have FPU EVA instructions so saving fpu context directly * does not work. */ - disable_msa(); lose_fpu(1); err = save_fp_context(sc); /* this might fail */ - if (save_msa && !err) - err = copy_msa_to_sigcontext(sc); #endif return err; } -static int protected_restore_fp_context(struct sigcontext __user *sc, - unsigned used_math) +static int protected_restore_fp_context(struct sigcontext __user *sc) { int err, tmp __maybe_unused; - bool restore_msa = cpu_has_msa && (used_math & USEDMATH_MSA); #ifndef CONFIG_EVA while (1) { lock_fpu_owner(); if (is_fpu_owner()) { err = restore_fp_context(sc); - if (restore_msa && !err) { - enable_msa(); - err = _restore_msa_context(sc); - } else { - /* signal handler may have used MSA */ - disable_msa(); - } unlock_fpu_owner(); } else { unlock_fpu_owner(); err = copy_fp_from_sigcontext(sc); - if (!err && (used_math & USEDMATH_MSA)) - err = copy_msa_from_sigcontext(sc); } if (likely(!err)) break; @@ -216,11 +158,8 @@ static int protected_restore_fp_context(struct sigcontext __user *sc, * EVA does not have FPU EVA instructions so restoring fpu context * directly does not work. */ - enable_msa(); lose_fpu(0); err = restore_fp_context(sc); /* this might fail */ - if (restore_msa && !err) - err = copy_msa_from_sigcontext(sc); #endif return err; } @@ -252,8 +191,7 @@ int setup_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc) err |= __put_user(rddsp(DSP_MASK), &sc->sc_dsp); } - used_math = used_math() ? USEDMATH_FP : 0; - used_math |= thread_msa_context_live() ? USEDMATH_MSA : 0; + used_math = !!used_math(); err |= __put_user(used_math, &sc->sc_used_math); if (used_math) { @@ -261,7 +199,7 @@ int setup_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc) * Save FPU state to signal context. Signal handler * will "inherit" current FPU state. */ - err |= protected_save_fp_context(sc, used_math); + err |= protected_save_fp_context(sc); } return err; } @@ -286,14 +224,14 @@ int fpcsr_pending(unsigned int __user *fpcsr) } static int -check_and_restore_fp_context(struct sigcontext __user *sc, unsigned used_math) +check_and_restore_fp_context(struct sigcontext __user *sc) { int err, sig; err = sig = fpcsr_pending(&sc->sc_fpc_csr); if (err > 0) err = 0; - err |= protected_restore_fp_context(sc, used_math); + err |= protected_restore_fp_context(sc); return err ?: sig; } @@ -333,10 +271,9 @@ int restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc) if (used_math) { /* restore fpu context if we have used it before */ if (!err) - err = check_and_restore_fp_context(sc, used_math); + err = check_and_restore_fp_context(sc); } else { - /* signal handler may have used FPU or MSA. Disable them. */ - disable_msa(); + /* signal handler may have used FPU. Give it up. */ lose_fpu(0); } diff --git a/arch/mips/kernel/signal32.c b/arch/mips/kernel/signal32.c index 299f956e4db3..bae2e6ee2109 100644 --- a/arch/mips/kernel/signal32.c +++ b/arch/mips/kernel/signal32.c @@ -30,7 +30,6 @@ #include <asm/sim.h> #include <asm/ucontext.h> #include <asm/fpu.h> -#include <asm/msa.h> #include <asm/war.h> #include <asm/vdso.h> #include <asm/dsp.h> @@ -43,9 +42,6 @@ static int (*restore_fp_context32)(struct sigcontext32 __user *sc); extern asmlinkage int _save_fp_context32(struct sigcontext32 __user *sc); extern asmlinkage int _restore_fp_context32(struct sigcontext32 __user *sc); -extern asmlinkage int _save_msa_context32(struct sigcontext32 __user *sc); -extern asmlinkage int _restore_msa_context32(struct sigcontext32 __user *sc); - /* * Including <asm/unistd.h> would give use the 64-bit syscall numbers ... */ @@ -115,59 +111,19 @@ static int copy_fp_from_sigcontext32(struct sigcontext32 __user *sc) } /* - * These functions will save only the upper 64 bits of the vector registers, - * since the lower 64 bits have already been saved as the scalar FP context. - */ -static int copy_msa_to_sigcontext32(struct sigcontext32 __user *sc) -{ - int i; - int err = 0; - - for (i = 0; i < NUM_FPU_REGS; i++) { - err |= - __put_user(get_fpr64(¤t->thread.fpu.fpr[i], 1), - &sc->sc_msaregs[i]); - } - err |= __put_user(current->thread.fpu.msacsr, &sc->sc_msa_csr); - - return err; -} - -static int copy_msa_from_sigcontext32(struct sigcontext32 __user *sc) -{ - int i; - int err = 0; - u64 val; - - for (i = 0; i < NUM_FPU_REGS; i++) { - err |= __get_user(val, &sc->sc_msaregs[i]); - set_fpr64(¤t->thread.fpu.fpr[i], 1, val); - } - err |= __get_user(current->thread.fpu.msacsr, &sc->sc_msa_csr); - - return err; -} - -/* * sigcontext handlers */ -static int protected_save_fp_context32(struct sigcontext32 __user *sc, - unsigned used_math) +static int protected_save_fp_context32(struct sigcontext32 __user *sc) { int err; - bool save_msa = cpu_has_msa && (used_math & USEDMATH_MSA); while (1) { lock_fpu_owner(); if (is_fpu_owner()) { err = save_fp_context32(sc); - if (save_msa && !err) - err = _save_msa_context32(sc); unlock_fpu_owner(); } else { unlock_fpu_owner(); err = copy_fp_to_sigcontext32(sc); - if (save_msa && !err) - err = copy_msa_to_sigcontext32(sc); } if (likely(!err)) break; @@ -181,28 +137,17 @@ static int protected_save_fp_context32(struct sigcontext32 __user *sc, return err; } -static int protected_restore_fp_context32(struct sigcontext32 __user *sc, - unsigned used_math) +static int protected_restore_fp_context32(struct sigcontext32 __user *sc) { int err, tmp __maybe_unused; - bool restore_msa = cpu_has_msa && (used_math & USEDMATH_MSA); while (1) { lock_fpu_owner(); if (is_fpu_owner()) { err = restore_fp_context32(sc); - if (restore_msa && !err) { - enable_msa(); - err = _restore_msa_context32(sc); - } else { - /* signal handler may have used MSA */ - disable_msa(); - } unlock_fpu_owner(); } else { unlock_fpu_owner(); err = copy_fp_from_sigcontext32(sc); - if (restore_msa && !err) - err = copy_msa_from_sigcontext32(sc); } if (likely(!err)) break; @@ -241,8 +186,7 @@ static int setup_sigcontext32(struct pt_regs *regs, err |= __put_user(mflo3(), &sc->sc_lo3); } - used_math = used_math() ? USEDMATH_FP : 0; - used_math |= thread_msa_context_live() ? USEDMATH_MSA : 0; + used_math = !!used_math(); err |= __put_user(used_math, &sc->sc_used_math); if (used_math) { @@ -250,21 +194,20 @@ static int setup_sigcontext32(struct pt_regs *regs, * Save FPU state to signal context. Signal handler * will "inherit" current FPU state. */ - err |= protected_save_fp_context32(sc, used_math); + err |= protected_save_fp_context32(sc); } return err; } static int -check_and_restore_fp_context32(struct sigcontext32 __user *sc, - unsigned used_math) +check_and_restore_fp_context32(struct sigcontext32 __user *sc) { int err, sig; err = sig = fpcsr_pending(&sc->sc_fpc_csr); if (err > 0) err = 0; - err |= protected_restore_fp_context32(sc, used_math); + err |= protected_restore_fp_context32(sc); return err ?: sig; } @@ -301,10 +244,9 @@ static int restore_sigcontext32(struct pt_regs *regs, if (used_math) { /* restore fpu context if we have used it before */ if (!err) - err = check_and_restore_fp_context32(sc, used_math); + err = check_and_restore_fp_context32(sc); } else { - /* signal handler may have used FPU or MSA. Disable them. */ - disable_msa(); + /* signal handler may have used FPU. Give it up. */ lose_fpu(0); } diff --git a/arch/mips/kernel/smp-cps.c b/arch/mips/kernel/smp-cps.c index df0598d9bfdd..949f2c6827a0 100644 --- a/arch/mips/kernel/smp-cps.c +++ b/arch/mips/kernel/smp-cps.c @@ -301,7 +301,7 @@ static int cps_cpu_disable(void) core_cfg = &mips_cps_core_bootcfg[current_cpu_data.core]; atomic_sub(1 << cpu_vpe_id(¤t_cpu_data), &core_cfg->vpe_mask); - smp_mb__after_atomic_dec(); + smp_mb__after_atomic(); set_cpu_online(cpu, false); cpu_clear(cpu, cpu_callin_map); diff --git a/arch/mips/kvm/kvm_mips.c b/arch/mips/kvm/kvm_mips.c index cd5e4f568439..f3c56a182fd8 100644 --- a/arch/mips/kvm/kvm_mips.c +++ b/arch/mips/kvm/kvm_mips.c @@ -384,6 +384,7 @@ void kvm_arch_vcpu_free(struct kvm_vcpu *vcpu) kfree(vcpu->arch.guest_ebase); kfree(vcpu->arch.kseg0_commpage); + kfree(vcpu); } void kvm_arch_vcpu_destroy(struct kvm_vcpu *vcpu) diff --git a/arch/mips/math-emu/ieee754.c b/arch/mips/math-emu/ieee754.c index 53f1d2287084..8e97acbbe22c 100644 --- a/arch/mips/math-emu/ieee754.c +++ b/arch/mips/math-emu/ieee754.c @@ -34,13 +34,22 @@ * Special constants */ -#define DPCNST(s, b, m) \ +/* + * Older GCC requires the inner braces for initialization of union ieee754dp's + * anonymous struct member. Without an error will result. + */ +#define xPCNST(s, b, m, ebias) \ { \ - .sign = (s), \ - .bexp = (b) + DP_EBIAS, \ - .mant = (m) \ + { \ + .sign = (s), \ + .bexp = (b) + ebias, \ + .mant = (m) \ + } \ } +#define DPCNST(s, b, m) \ + xPCNST(s, b, m, DP_EBIAS) + const union ieee754dp __ieee754dp_spcvals[] = { DPCNST(0, DP_EMIN - 1, 0x0000000000000ULL), /* + zero */ DPCNST(1, DP_EMIN - 1, 0x0000000000000ULL), /* - zero */ @@ -62,11 +71,7 @@ const union ieee754dp __ieee754dp_spcvals[] = { }; #define SPCNST(s, b, m) \ -{ \ - .sign = (s), \ - .bexp = (b) + SP_EBIAS, \ - .mant = (m) \ -} + xPCNST(s, b, m, SP_EBIAS) const union ieee754sp __ieee754sp_spcvals[] = { SPCNST(0, SP_EMIN - 1, 0x000000), /* + zero */ diff --git a/arch/mips/mm/uasm-micromips.c b/arch/mips/mm/uasm-micromips.c index 775c2800cba2..8399ddf03a02 100644 --- a/arch/mips/mm/uasm-micromips.c +++ b/arch/mips/mm/uasm-micromips.c @@ -102,6 +102,7 @@ static struct insn insn_table_MM[] = { { insn_sd, 0, 0 }, { insn_sll, M(mm_pool32a_op, 0, 0, 0, 0, mm_sll32_op), RT | RS | RD }, { insn_sllv, M(mm_pool32a_op, 0, 0, 0, 0, mm_sllv32_op), RT | RS | RD }, + { insn_slt, M(mm_pool32a_op, 0, 0, 0, 0, mm_slt_op), RT | RS | RD }, { insn_sltiu, M(mm_sltiu32_op, 0, 0, 0, 0, 0), RT | RS | SIMM }, { insn_sltu, M(mm_pool32a_op, 0, 0, 0, 0, mm_sltu_op), RT | RS | RD }, { insn_sra, M(mm_pool32a_op, 0, 0, 0, 0, mm_sra_op), RT | RS | RD }, diff --git a/arch/mips/mm/uasm-mips.c b/arch/mips/mm/uasm-mips.c index 38792c2364f5..6708a2dbf934 100644 --- a/arch/mips/mm/uasm-mips.c +++ b/arch/mips/mm/uasm-mips.c @@ -89,7 +89,7 @@ static struct insn insn_table[] = { { insn_lb, M(lb_op, 0, 0, 0, 0, 0), RS | RT | SIMM }, { insn_ld, M(ld_op, 0, 0, 0, 0, 0), RS | RT | SIMM }, { insn_ldx, M(spec3_op, 0, 0, 0, ldx_op, lx_op), RS | RT | RD }, - { insn_lh, M(lw_op, 0, 0, 0, 0, 0), RS | RT | SIMM }, + { insn_lh, M(lh_op, 0, 0, 0, 0, 0), RS | RT | SIMM }, { insn_lld, M(lld_op, 0, 0, 0, 0, 0), RS | RT | SIMM }, { insn_ll, M(ll_op, 0, 0, 0, 0, 0), RS | RT | SIMM }, { insn_lui, M(lui_op, 0, 0, 0, 0, 0), RT | SIMM }, @@ -110,6 +110,7 @@ static struct insn insn_table[] = { { insn_sd, M(sd_op, 0, 0, 0, 0, 0), RS | RT | SIMM }, { insn_sll, M(spec_op, 0, 0, 0, 0, sll_op), RT | RD | RE }, { insn_sllv, M(spec_op, 0, 0, 0, 0, sllv_op), RS | RT | RD }, + { insn_slt, M(spec_op, 0, 0, 0, 0, slt_op), RS | RT | RD }, { insn_sltiu, M(sltiu_op, 0, 0, 0, 0, 0), RS | RT | SIMM }, { insn_sltu, M(spec_op, 0, 0, 0, 0, sltu_op), RS | RT | RD }, { insn_sra, M(spec_op, 0, 0, 0, 0, sra_op), RT | RD | RE }, diff --git a/arch/mips/mm/uasm.c b/arch/mips/mm/uasm.c index 00515805fe41..a01b0d6cedd2 100644 --- a/arch/mips/mm/uasm.c +++ b/arch/mips/mm/uasm.c @@ -53,7 +53,7 @@ enum opcode { insn_ld, insn_ldx, insn_lh, insn_ll, insn_lld, insn_lui, insn_lw, insn_lwx, insn_mfc0, insn_mfhi, insn_mflo, insn_mtc0, insn_mul, insn_or, insn_ori, insn_pref, insn_rfe, insn_rotr, insn_sc, insn_scd, - insn_sd, insn_sll, insn_sllv, insn_sltiu, insn_sltu, insn_sra, + insn_sd, insn_sll, insn_sllv, insn_slt, insn_sltiu, insn_sltu, insn_sra, insn_srl, insn_srlv, insn_subu, insn_sw, insn_sync, insn_syscall, insn_tlbp, insn_tlbr, insn_tlbwi, insn_tlbwr, insn_wait, insn_wsbh, insn_xor, insn_xori, insn_yield, @@ -139,6 +139,13 @@ Ip_u1u2u3(op) \ } \ UASM_EXPORT_SYMBOL(uasm_i##op); +#define I_s3s1s2(op) \ +Ip_s3s1s2(op) \ +{ \ + build_insn(buf, insn##op, b, c, a); \ +} \ +UASM_EXPORT_SYMBOL(uasm_i##op); + #define I_u2u1u3(op) \ Ip_u2u1u3(op) \ { \ @@ -289,6 +296,7 @@ I_u2s3u1(_scd) I_u2s3u1(_sd) I_u2u1u3(_sll) I_u3u2u1(_sllv) +I_s3s1s2(_slt) I_u2u1s3(_sltiu) I_u3u1u2(_sltu) I_u2u1u3(_sra) diff --git a/arch/mips/net/bpf_jit.c b/arch/mips/net/bpf_jit.c index a67b9753330b..b87390a56a2f 100644 --- a/arch/mips/net/bpf_jit.c +++ b/arch/mips/net/bpf_jit.c @@ -119,8 +119,6 @@ /* Arguments used by JIT */ #define ARGS_USED_BY_JIT 2 /* only applicable to 64-bit */ -#define FLAG_NEED_X_RESET (1 << 0) - #define SBIT(x) (1 << (x)) /* Signed version of BIT() */ /** @@ -153,6 +151,8 @@ static inline int optimize_div(u32 *k) return 0; } +static inline void emit_jit_reg_move(ptr dst, ptr src, struct jit_ctx *ctx); + /* Simply emit the instruction if the JIT memory space has been allocated */ #define emit_instr(ctx, func, ...) \ do { \ @@ -166,9 +166,7 @@ do { \ /* Determine if immediate is within the 16-bit signed range */ static inline bool is_range16(s32 imm) { - if (imm >= SBIT(15) || imm < -SBIT(15)) - return true; - return false; + return !(imm >= SBIT(15) || imm < -SBIT(15)); } static inline void emit_addu(unsigned int dst, unsigned int src1, @@ -187,7 +185,7 @@ static inline void emit_load_imm(unsigned int dst, u32 imm, struct jit_ctx *ctx) { if (ctx->target != NULL) { /* addiu can only handle s16 */ - if (is_range16(imm)) { + if (!is_range16(imm)) { u32 *p = &ctx->target[ctx->idx]; uasm_i_lui(&p, r_tmp_imm, (s32)imm >> 16); p = &ctx->target[ctx->idx + 1]; @@ -199,7 +197,7 @@ static inline void emit_load_imm(unsigned int dst, u32 imm, struct jit_ctx *ctx) } ctx->idx++; - if (is_range16(imm)) + if (!is_range16(imm)) ctx->idx++; } @@ -240,7 +238,7 @@ static inline void emit_daddiu(unsigned int dst, unsigned int src, static inline void emit_addiu(unsigned int dst, unsigned int src, u32 imm, struct jit_ctx *ctx) { - if (is_range16(imm)) { + if (!is_range16(imm)) { emit_load_imm(r_tmp, imm, ctx); emit_addu(dst, r_tmp, src, ctx); } else { @@ -313,8 +311,11 @@ static inline void emit_sll(unsigned int dst, unsigned int src, unsigned int sa, struct jit_ctx *ctx) { /* sa is 5-bits long */ - BUG_ON(sa >= BIT(5)); - emit_instr(ctx, sll, dst, src, sa); + if (sa >= BIT(5)) + /* Shifting >= 32 results in zero */ + emit_jit_reg_move(dst, r_zero, ctx); + else + emit_instr(ctx, sll, dst, src, sa); } static inline void emit_srlv(unsigned int dst, unsigned int src, @@ -327,8 +328,17 @@ static inline void emit_srl(unsigned int dst, unsigned int src, unsigned int sa, struct jit_ctx *ctx) { /* sa is 5-bits long */ - BUG_ON(sa >= BIT(5)); - emit_instr(ctx, srl, dst, src, sa); + if (sa >= BIT(5)) + /* Shifting >= 32 results in zero */ + emit_jit_reg_move(dst, r_zero, ctx); + else + emit_instr(ctx, srl, dst, src, sa); +} + +static inline void emit_slt(unsigned int dst, unsigned int src1, + unsigned int src2, struct jit_ctx *ctx) +{ + emit_instr(ctx, slt, dst, src1, src2); } static inline void emit_sltu(unsigned int dst, unsigned int src1, @@ -341,7 +351,7 @@ static inline void emit_sltiu(unsigned dst, unsigned int src, unsigned int imm, struct jit_ctx *ctx) { /* 16 bit immediate */ - if (is_range16((s32)imm)) { + if (!is_range16((s32)imm)) { emit_load_imm(r_tmp, imm, ctx); emit_sltu(dst, src, r_tmp, ctx); } else { @@ -408,7 +418,7 @@ static inline void emit_div(unsigned int dst, unsigned int src, u32 *p = &ctx->target[ctx->idx]; uasm_i_divu(&p, dst, src); p = &ctx->target[ctx->idx + 1]; - uasm_i_mfhi(&p, dst); + uasm_i_mflo(&p, dst); } ctx->idx += 2; /* 2 insts */ } @@ -443,6 +453,17 @@ static inline void emit_wsbh(unsigned int dst, unsigned int src, emit_instr(ctx, wsbh, dst, src); } +/* load pointer to register */ +static inline void emit_load_ptr(unsigned int dst, unsigned int src, + int imm, struct jit_ctx *ctx) +{ + /* src contains the base addr of the 32/64-pointer */ + if (config_enabled(CONFIG_64BIT)) + emit_instr(ctx, ld, dst, imm, src); + else + emit_instr(ctx, lw, dst, imm, src); +} + /* load a function pointer to register */ static inline void emit_load_func(unsigned int reg, ptr imm, struct jit_ctx *ctx) @@ -545,29 +566,13 @@ static inline u16 align_sp(unsigned int num) return num; } -static inline void update_on_xread(struct jit_ctx *ctx) -{ - if (!(ctx->flags & SEEN_X)) - ctx->flags |= FLAG_NEED_X_RESET; - - ctx->flags |= SEEN_X; -} - static bool is_load_to_a(u16 inst) { switch (inst) { - case BPF_S_LD_W_LEN: - case BPF_S_LD_W_ABS: - case BPF_S_LD_H_ABS: - case BPF_S_LD_B_ABS: - case BPF_S_ANC_CPU: - case BPF_S_ANC_IFINDEX: - case BPF_S_ANC_MARK: - case BPF_S_ANC_PROTOCOL: - case BPF_S_ANC_RXHASH: - case BPF_S_ANC_VLAN_TAG: - case BPF_S_ANC_VLAN_TAG_PRESENT: - case BPF_S_ANC_QUEUE: + case BPF_LD | BPF_W | BPF_LEN: + case BPF_LD | BPF_W | BPF_ABS: + case BPF_LD | BPF_H | BPF_ABS: + case BPF_LD | BPF_B | BPF_ABS: return true; default: return false; @@ -618,7 +623,10 @@ static void save_bpf_jit_regs(struct jit_ctx *ctx, unsigned offset) if (ctx->flags & SEEN_MEM) { if (real_off % (RSIZE * 2)) real_off += RSIZE; - emit_addiu(r_M, r_sp, real_off, ctx); + if (config_enabled(CONFIG_64BIT)) + emit_daddiu(r_M, r_sp, real_off, ctx); + else + emit_addiu(r_M, r_sp, real_off, ctx); } } @@ -705,11 +713,11 @@ static void build_prologue(struct jit_ctx *ctx) if (ctx->flags & SEEN_SKB) emit_reg_move(r_skb, MIPS_R_A0, ctx); - if (ctx->flags & FLAG_NEED_X_RESET) + if (ctx->flags & SEEN_X) emit_jit_reg_move(r_X, r_zero, ctx); /* Do not leak kernel data to userspace */ - if ((first_inst != BPF_S_RET_K) && !(is_load_to_a(first_inst))) + if ((first_inst != (BPF_RET | BPF_K)) && !(is_load_to_a(first_inst))) emit_jit_reg_move(r_A, r_zero, ctx); } @@ -757,13 +765,17 @@ static u64 jit_get_skb_w(struct sk_buff *skb, unsigned offset) return (u64)err << 32 | ntohl(ret); } -#define PKT_TYPE_MAX 7 +#ifdef __BIG_ENDIAN_BITFIELD +#define PKT_TYPE_MAX (7 << 5) +#else +#define PKT_TYPE_MAX 7 +#endif static int pkt_type_offset(void) { struct sk_buff skb_probe = { .pkt_type = ~0, }; - char *ct = (char *)&skb_probe; + u8 *ct = (u8 *)&skb_probe; unsigned int off; for (off = 0; off < sizeof(struct sk_buff); off++) { @@ -783,46 +795,62 @@ static int build_body(struct jit_ctx *ctx) u32 k, b_off __maybe_unused; for (i = 0; i < prog->len; i++) { + u16 code; + inst = &(prog->insns[i]); pr_debug("%s: code->0x%02x, jt->0x%x, jf->0x%x, k->0x%x\n", __func__, inst->code, inst->jt, inst->jf, inst->k); k = inst->k; + code = bpf_anc_helper(inst); if (ctx->target == NULL) ctx->offsets[i] = ctx->idx * 4; - switch (inst->code) { - case BPF_S_LD_IMM: + switch (code) { + case BPF_LD | BPF_IMM: /* A <- k ==> li r_A, k */ ctx->flags |= SEEN_A; emit_load_imm(r_A, k, ctx); break; - case BPF_S_LD_W_LEN: + case BPF_LD | BPF_W | BPF_LEN: BUILD_BUG_ON(FIELD_SIZEOF(struct sk_buff, len) != 4); /* A <- len ==> lw r_A, offset(skb) */ ctx->flags |= SEEN_SKB | SEEN_A; off = offsetof(struct sk_buff, len); emit_load(r_A, r_skb, off, ctx); break; - case BPF_S_LD_MEM: + case BPF_LD | BPF_MEM: /* A <- M[k] ==> lw r_A, offset(M) */ ctx->flags |= SEEN_MEM | SEEN_A; emit_load(r_A, r_M, SCRATCH_OFF(k), ctx); break; - case BPF_S_LD_W_ABS: + case BPF_LD | BPF_W | BPF_ABS: /* A <- P[k:4] */ load_order = 2; goto load; - case BPF_S_LD_H_ABS: + case BPF_LD | BPF_H | BPF_ABS: /* A <- P[k:2] */ load_order = 1; goto load; - case BPF_S_LD_B_ABS: + case BPF_LD | BPF_B | BPF_ABS: /* A <- P[k:1] */ load_order = 0; load: + /* the interpreter will deal with the negative K */ + if ((int)k < 0) + return -ENOTSUPP; + emit_load_imm(r_off, k, ctx); load_common: + /* + * We may got here from the indirect loads so + * return if offset is negative. + */ + emit_slt(r_s0, r_off, r_zero, ctx); + emit_bcond(MIPS_COND_NE, r_s0, r_zero, + b_imm(prog->len, ctx), ctx); + emit_reg_move(r_ret, r_zero, ctx); + ctx->flags |= SEEN_CALL | SEEN_OFF | SEEN_S0 | SEEN_SKB | SEEN_A; @@ -852,39 +880,42 @@ load_common: emit_b(b_imm(prog->len, ctx), ctx); emit_reg_move(r_ret, r_zero, ctx); break; - case BPF_S_LD_W_IND: + case BPF_LD | BPF_W | BPF_IND: /* A <- P[X + k:4] */ load_order = 2; goto load_ind; - case BPF_S_LD_H_IND: + case BPF_LD | BPF_H | BPF_IND: /* A <- P[X + k:2] */ load_order = 1; goto load_ind; - case BPF_S_LD_B_IND: + case BPF_LD | BPF_B | BPF_IND: /* A <- P[X + k:1] */ load_order = 0; load_ind: - update_on_xread(ctx); ctx->flags |= SEEN_OFF | SEEN_X; emit_addiu(r_off, r_X, k, ctx); goto load_common; - case BPF_S_LDX_IMM: + case BPF_LDX | BPF_IMM: /* X <- k */ ctx->flags |= SEEN_X; emit_load_imm(r_X, k, ctx); break; - case BPF_S_LDX_MEM: + case BPF_LDX | BPF_MEM: /* X <- M[k] */ ctx->flags |= SEEN_X | SEEN_MEM; emit_load(r_X, r_M, SCRATCH_OFF(k), ctx); break; - case BPF_S_LDX_W_LEN: + case BPF_LDX | BPF_W | BPF_LEN: /* X <- len */ ctx->flags |= SEEN_X | SEEN_SKB; off = offsetof(struct sk_buff, len); emit_load(r_X, r_skb, off, ctx); break; - case BPF_S_LDX_B_MSH: + case BPF_LDX | BPF_B | BPF_MSH: + /* the interpreter will deal with the negative K */ + if ((int)k < 0) + return -ENOTSUPP; + /* X <- 4 * (P[k:1] & 0xf) */ ctx->flags |= SEEN_X | SEEN_CALL | SEEN_S0 | SEEN_SKB; /* Load offset to a1 */ @@ -917,50 +948,49 @@ load_ind: emit_b(b_imm(prog->len, ctx), ctx); emit_load_imm(r_ret, 0, ctx); /* delay slot */ break; - case BPF_S_ST: + case BPF_ST: /* M[k] <- A */ ctx->flags |= SEEN_MEM | SEEN_A; emit_store(r_A, r_M, SCRATCH_OFF(k), ctx); break; - case BPF_S_STX: + case BPF_STX: /* M[k] <- X */ ctx->flags |= SEEN_MEM | SEEN_X; emit_store(r_X, r_M, SCRATCH_OFF(k), ctx); break; - case BPF_S_ALU_ADD_K: + case BPF_ALU | BPF_ADD | BPF_K: /* A += K */ ctx->flags |= SEEN_A; emit_addiu(r_A, r_A, k, ctx); break; - case BPF_S_ALU_ADD_X: + case BPF_ALU | BPF_ADD | BPF_X: /* A += X */ ctx->flags |= SEEN_A | SEEN_X; emit_addu(r_A, r_A, r_X, ctx); break; - case BPF_S_ALU_SUB_K: + case BPF_ALU | BPF_SUB | BPF_K: /* A -= K */ ctx->flags |= SEEN_A; emit_addiu(r_A, r_A, -k, ctx); break; - case BPF_S_ALU_SUB_X: + case BPF_ALU | BPF_SUB | BPF_X: /* A -= X */ ctx->flags |= SEEN_A | SEEN_X; emit_subu(r_A, r_A, r_X, ctx); break; - case BPF_S_ALU_MUL_K: + case BPF_ALU | BPF_MUL | BPF_K: /* A *= K */ /* Load K to scratch register before MUL */ ctx->flags |= SEEN_A | SEEN_S0; emit_load_imm(r_s0, k, ctx); emit_mul(r_A, r_A, r_s0, ctx); break; - case BPF_S_ALU_MUL_X: + case BPF_ALU | BPF_MUL | BPF_X: /* A *= X */ - update_on_xread(ctx); ctx->flags |= SEEN_A | SEEN_X; emit_mul(r_A, r_A, r_X, ctx); break; - case BPF_S_ALU_DIV_K: + case BPF_ALU | BPF_DIV | BPF_K: /* A /= k */ if (k == 1) break; @@ -973,7 +1003,7 @@ load_ind: emit_load_imm(r_s0, k, ctx); emit_div(r_A, r_s0, ctx); break; - case BPF_S_ALU_MOD_K: + case BPF_ALU | BPF_MOD | BPF_K: /* A %= k */ if (k == 1 || optimize_div(&k)) { ctx->flags |= SEEN_A; @@ -984,9 +1014,8 @@ load_ind: emit_mod(r_A, r_s0, ctx); } break; - case BPF_S_ALU_DIV_X: + case BPF_ALU | BPF_DIV | BPF_X: /* A /= X */ - update_on_xread(ctx); ctx->flags |= SEEN_X | SEEN_A; /* Check if r_X is zero */ emit_bcond(MIPS_COND_EQ, r_X, r_zero, @@ -994,9 +1023,8 @@ load_ind: emit_load_imm(r_val, 0, ctx); /* delay slot */ emit_div(r_A, r_X, ctx); break; - case BPF_S_ALU_MOD_X: + case BPF_ALU | BPF_MOD | BPF_X: /* A %= X */ - update_on_xread(ctx); ctx->flags |= SEEN_X | SEEN_A; /* Check if r_X is zero */ emit_bcond(MIPS_COND_EQ, r_X, r_zero, @@ -1004,94 +1032,89 @@ load_ind: emit_load_imm(r_val, 0, ctx); /* delay slot */ emit_mod(r_A, r_X, ctx); break; - case BPF_S_ALU_OR_K: + case BPF_ALU | BPF_OR | BPF_K: /* A |= K */ ctx->flags |= SEEN_A; emit_ori(r_A, r_A, k, ctx); break; - case BPF_S_ALU_OR_X: + case BPF_ALU | BPF_OR | BPF_X: /* A |= X */ - update_on_xread(ctx); ctx->flags |= SEEN_A; emit_ori(r_A, r_A, r_X, ctx); break; - case BPF_S_ALU_XOR_K: + case BPF_ALU | BPF_XOR | BPF_K: /* A ^= k */ ctx->flags |= SEEN_A; emit_xori(r_A, r_A, k, ctx); break; - case BPF_S_ANC_ALU_XOR_X: - case BPF_S_ALU_XOR_X: + case BPF_ANC | SKF_AD_ALU_XOR_X: + case BPF_ALU | BPF_XOR | BPF_X: /* A ^= X */ - update_on_xread(ctx); ctx->flags |= SEEN_A; emit_xor(r_A, r_A, r_X, ctx); break; - case BPF_S_ALU_AND_K: + case BPF_ALU | BPF_AND | BPF_K: /* A &= K */ ctx->flags |= SEEN_A; emit_andi(r_A, r_A, k, ctx); break; - case BPF_S_ALU_AND_X: + case BPF_ALU | BPF_AND | BPF_X: /* A &= X */ - update_on_xread(ctx); ctx->flags |= SEEN_A | SEEN_X; emit_and(r_A, r_A, r_X, ctx); break; - case BPF_S_ALU_LSH_K: + case BPF_ALU | BPF_LSH | BPF_K: /* A <<= K */ ctx->flags |= SEEN_A; emit_sll(r_A, r_A, k, ctx); break; - case BPF_S_ALU_LSH_X: + case BPF_ALU | BPF_LSH | BPF_X: /* A <<= X */ ctx->flags |= SEEN_A | SEEN_X; - update_on_xread(ctx); emit_sllv(r_A, r_A, r_X, ctx); break; - case BPF_S_ALU_RSH_K: + case BPF_ALU | BPF_RSH | BPF_K: /* A >>= K */ ctx->flags |= SEEN_A; emit_srl(r_A, r_A, k, ctx); break; - case BPF_S_ALU_RSH_X: + case BPF_ALU | BPF_RSH | BPF_X: ctx->flags |= SEEN_A | SEEN_X; - update_on_xread(ctx); emit_srlv(r_A, r_A, r_X, ctx); break; - case BPF_S_ALU_NEG: + case BPF_ALU | BPF_NEG: /* A = -A */ ctx->flags |= SEEN_A; emit_neg(r_A, ctx); break; - case BPF_S_JMP_JA: + case BPF_JMP | BPF_JA: /* pc += K */ emit_b(b_imm(i + k + 1, ctx), ctx); emit_nop(ctx); break; - case BPF_S_JMP_JEQ_K: + case BPF_JMP | BPF_JEQ | BPF_K: /* pc += ( A == K ) ? pc->jt : pc->jf */ condt = MIPS_COND_EQ | MIPS_COND_K; goto jmp_cmp; - case BPF_S_JMP_JEQ_X: + case BPF_JMP | BPF_JEQ | BPF_X: ctx->flags |= SEEN_X; /* pc += ( A == X ) ? pc->jt : pc->jf */ condt = MIPS_COND_EQ | MIPS_COND_X; goto jmp_cmp; - case BPF_S_JMP_JGE_K: + case BPF_JMP | BPF_JGE | BPF_K: /* pc += ( A >= K ) ? pc->jt : pc->jf */ condt = MIPS_COND_GE | MIPS_COND_K; goto jmp_cmp; - case BPF_S_JMP_JGE_X: + case BPF_JMP | BPF_JGE | BPF_X: ctx->flags |= SEEN_X; /* pc += ( A >= X ) ? pc->jt : pc->jf */ condt = MIPS_COND_GE | MIPS_COND_X; goto jmp_cmp; - case BPF_S_JMP_JGT_K: + case BPF_JMP | BPF_JGT | BPF_K: /* pc += ( A > K ) ? pc->jt : pc->jf */ condt = MIPS_COND_GT | MIPS_COND_K; goto jmp_cmp; - case BPF_S_JMP_JGT_X: + case BPF_JMP | BPF_JGT | BPF_X: ctx->flags |= SEEN_X; /* pc += ( A > X ) ? pc->jt : pc->jf */ condt = MIPS_COND_GT | MIPS_COND_X; @@ -1109,7 +1132,7 @@ jmp_cmp: } /* A < (K|X) ? r_scrach = 1 */ b_off = b_imm(i + inst->jf + 1, ctx); - emit_bcond(MIPS_COND_GT, r_s0, r_zero, b_off, + emit_bcond(MIPS_COND_NE, r_s0, r_zero, b_off, ctx); emit_nop(ctx); /* A > (K|X) ? scratch = 0 */ @@ -1167,7 +1190,7 @@ jmp_cmp: } } break; - case BPF_S_JMP_JSET_K: + case BPF_JMP | BPF_JSET | BPF_K: ctx->flags |= SEEN_S0 | SEEN_S1 | SEEN_A; /* pc += (A & K) ? pc -> jt : pc -> jf */ emit_load_imm(r_s1, k, ctx); @@ -1181,7 +1204,7 @@ jmp_cmp: emit_b(b_off, ctx); emit_nop(ctx); break; - case BPF_S_JMP_JSET_X: + case BPF_JMP | BPF_JSET | BPF_X: ctx->flags |= SEEN_S0 | SEEN_X | SEEN_A; /* pc += (A & X) ? pc -> jt : pc -> jf */ emit_and(r_s0, r_A, r_X, ctx); @@ -1194,7 +1217,7 @@ jmp_cmp: emit_b(b_off, ctx); emit_nop(ctx); break; - case BPF_S_RET_A: + case BPF_RET | BPF_A: ctx->flags |= SEEN_A; if (i != prog->len - 1) /* @@ -1204,7 +1227,7 @@ jmp_cmp: emit_b(b_imm(prog->len, ctx), ctx); emit_reg_move(r_ret, r_A, ctx); /* delay slot */ break; - case BPF_S_RET_K: + case BPF_RET | BPF_K: /* * It can emit two instructions so it does not fit on * the delay slot. @@ -1219,19 +1242,18 @@ jmp_cmp: emit_nop(ctx); } break; - case BPF_S_MISC_TAX: + case BPF_MISC | BPF_TAX: /* X = A */ ctx->flags |= SEEN_X | SEEN_A; emit_jit_reg_move(r_X, r_A, ctx); break; - case BPF_S_MISC_TXA: + case BPF_MISC | BPF_TXA: /* A = X */ ctx->flags |= SEEN_A | SEEN_X; - update_on_xread(ctx); emit_jit_reg_move(r_A, r_X, ctx); break; /* AUX */ - case BPF_S_ANC_PROTOCOL: + case BPF_ANC | SKF_AD_PROTOCOL: /* A = ntohs(skb->protocol */ ctx->flags |= SEEN_SKB | SEEN_OFF | SEEN_A; BUILD_BUG_ON(FIELD_SIZEOF(struct sk_buff, @@ -1256,7 +1278,7 @@ jmp_cmp: } #endif break; - case BPF_S_ANC_CPU: + case BPF_ANC | SKF_AD_CPU: ctx->flags |= SEEN_A | SEEN_OFF; /* A = current_thread_info()->cpu */ BUILD_BUG_ON(FIELD_SIZEOF(struct thread_info, @@ -1265,11 +1287,12 @@ jmp_cmp: /* $28/gp points to the thread_info struct */ emit_load(r_A, 28, off, ctx); break; - case BPF_S_ANC_IFINDEX: + case BPF_ANC | SKF_AD_IFINDEX: /* A = skb->dev->ifindex */ ctx->flags |= SEEN_SKB | SEEN_A | SEEN_S0; off = offsetof(struct sk_buff, dev); - emit_load(r_s0, r_skb, off, ctx); + /* Load *dev pointer */ + emit_load_ptr(r_s0, r_skb, off, ctx); /* error (0) in the delay slot */ emit_bcond(MIPS_COND_EQ, r_s0, r_zero, b_imm(prog->len, ctx), ctx); @@ -1279,31 +1302,36 @@ jmp_cmp: off = offsetof(struct net_device, ifindex); emit_load(r_A, r_s0, off, ctx); break; - case BPF_S_ANC_MARK: + case BPF_ANC | SKF_AD_MARK: ctx->flags |= SEEN_SKB | SEEN_A; BUILD_BUG_ON(FIELD_SIZEOF(struct sk_buff, mark) != 4); off = offsetof(struct sk_buff, mark); emit_load(r_A, r_skb, off, ctx); break; - case BPF_S_ANC_RXHASH: + case BPF_ANC | SKF_AD_RXHASH: ctx->flags |= SEEN_SKB | SEEN_A; BUILD_BUG_ON(FIELD_SIZEOF(struct sk_buff, hash) != 4); off = offsetof(struct sk_buff, hash); emit_load(r_A, r_skb, off, ctx); break; - case BPF_S_ANC_VLAN_TAG: - case BPF_S_ANC_VLAN_TAG_PRESENT: + case BPF_ANC | SKF_AD_VLAN_TAG: + case BPF_ANC | SKF_AD_VLAN_TAG_PRESENT: ctx->flags |= SEEN_SKB | SEEN_S0 | SEEN_A; BUILD_BUG_ON(FIELD_SIZEOF(struct sk_buff, vlan_tci) != 2); off = offsetof(struct sk_buff, vlan_tci); emit_half_load(r_s0, r_skb, off, ctx); - if (inst->code == BPF_S_ANC_VLAN_TAG) - emit_and(r_A, r_s0, VLAN_VID_MASK, ctx); - else - emit_and(r_A, r_s0, VLAN_TAG_PRESENT, ctx); + if (code == (BPF_ANC | SKF_AD_VLAN_TAG)) { + emit_andi(r_A, r_s0, (u16)~VLAN_TAG_PRESENT, ctx); + } else { + emit_andi(r_A, r_s0, VLAN_TAG_PRESENT, ctx); + /* return 1 if present */ + emit_sltu(r_A, r_zero, r_A, ctx); + } break; - case BPF_S_ANC_PKTTYPE: + case BPF_ANC | SKF_AD_PKTTYPE: + ctx->flags |= SEEN_SKB; + off = pkt_type_offset(); if (off < 0) @@ -1311,8 +1339,12 @@ jmp_cmp: emit_load_byte(r_tmp, r_skb, off, ctx); /* Keep only the last 3 bits */ emit_andi(r_A, r_tmp, PKT_TYPE_MAX, ctx); +#ifdef __BIG_ENDIAN_BITFIELD + /* Get the actual packet type to the lower 3 bits */ + emit_srl(r_A, r_A, 5, ctx); +#endif break; - case BPF_S_ANC_QUEUE: + case BPF_ANC | SKF_AD_QUEUE: ctx->flags |= SEEN_SKB | SEEN_A; BUILD_BUG_ON(FIELD_SIZEOF(struct sk_buff, queue_mapping) != 2); @@ -1322,8 +1354,8 @@ jmp_cmp: emit_half_load(r_A, r_skb, off, ctx); break; default: - pr_warn("%s: Unhandled opcode: 0x%02x\n", __FILE__, - inst->code); + pr_debug("%s: Unhandled opcode: 0x%02x\n", __FILE__, + inst->code); return -1; } } diff --git a/arch/powerpc/Kconfig.debug b/arch/powerpc/Kconfig.debug index 790352f93700..35d16bd2760b 100644 --- a/arch/powerpc/Kconfig.debug +++ b/arch/powerpc/Kconfig.debug @@ -303,7 +303,6 @@ config PPC_EARLY_DEBUG_OPAL_VTERMNO This correspond to which /dev/hvcN you want to use for early debug. - On OPAL v1 (takeover) this should always be 0 On OPAL v2, this will be 0 for network console and 1 or 2 for the machine built-in serial ports. diff --git a/arch/powerpc/include/asm/code-patching.h b/arch/powerpc/include/asm/code-patching.h index 37991e154ef8..840a5509b3f1 100644 --- a/arch/powerpc/include/asm/code-patching.h +++ b/arch/powerpc/include/asm/code-patching.h @@ -88,4 +88,15 @@ static inline unsigned long ppc_function_entry(void *func) #endif } +static inline unsigned long ppc_global_function_entry(void *func) +{ +#if defined(CONFIG_PPC64) && defined(_CALL_ELF) && _CALL_ELF == 2 + /* PPC64 ABIv2 the global entry point is at the address */ + return (unsigned long)func; +#else + /* All other cases there is no change vs ppc_function_entry() */ + return ppc_function_entry(func); +#endif +} + #endif /* _ASM_POWERPC_CODE_PATCHING_H */ diff --git a/arch/powerpc/include/asm/opal.h b/arch/powerpc/include/asm/opal.h index 460018889ba9..0da1dbd42e02 100644 --- a/arch/powerpc/include/asm/opal.h +++ b/arch/powerpc/include/asm/opal.h @@ -12,27 +12,7 @@ #ifndef __OPAL_H #define __OPAL_H -/****** Takeover interface ********/ - -/* PAPR H-Call used to querty the HAL existence and/or instanciate - * it from within pHyp (tech preview only). - * - * This is exclusively used in prom_init.c - */ - #ifndef __ASSEMBLY__ - -struct opal_takeover_args { - u64 k_image; /* r4 */ - u64 k_size; /* r5 */ - u64 k_entry; /* r6 */ - u64 k_entry2; /* r7 */ - u64 hal_addr; /* r8 */ - u64 rd_image; /* r9 */ - u64 rd_size; /* r10 */ - u64 rd_loc; /* r11 */ -}; - /* * SG entry * @@ -55,15 +35,6 @@ struct opal_sg_list { /* We calculate number of sg entries based on PAGE_SIZE */ #define SG_ENTRIES_PER_NODE ((PAGE_SIZE - 16) / sizeof(struct opal_sg_entry)) -extern long opal_query_takeover(u64 *hal_size, u64 *hal_align); - -extern long opal_do_takeover(struct opal_takeover_args *args); - -struct rtas_args; -extern int opal_enter_rtas(struct rtas_args *args, - unsigned long data, - unsigned long entry); - #endif /* __ASSEMBLY__ */ /****** OPAL APIs ******/ diff --git a/arch/powerpc/include/asm/swab.h b/arch/powerpc/include/asm/swab.h index b9bd1ca944d0..96f59de61855 100644 --- a/arch/powerpc/include/asm/swab.h +++ b/arch/powerpc/include/asm/swab.h @@ -9,10 +9,6 @@ #include <uapi/asm/swab.h> -#ifdef __GNUC__ -#ifndef __powerpc64__ -#endif /* __powerpc64__ */ - static __inline__ __u16 ld_le16(const volatile __u16 *addr) { __u16 val; @@ -20,19 +16,12 @@ static __inline__ __u16 ld_le16(const volatile __u16 *addr) __asm__ __volatile__ ("lhbrx %0,0,%1" : "=r" (val) : "r" (addr), "m" (*addr)); return val; } -#define __arch_swab16p ld_le16 static __inline__ void st_le16(volatile __u16 *addr, const __u16 val) { __asm__ __volatile__ ("sthbrx %1,0,%2" : "=m" (*addr) : "r" (val), "r" (addr)); } -static inline void __arch_swab16s(__u16 *addr) -{ - st_le16(addr, *addr); -} -#define __arch_swab16s __arch_swab16s - static __inline__ __u32 ld_le32(const volatile __u32 *addr) { __u32 val; @@ -40,42 +29,10 @@ static __inline__ __u32 ld_le32(const volatile __u32 *addr) __asm__ __volatile__ ("lwbrx %0,0,%1" : "=r" (val) : "r" (addr), "m" (*addr)); return val; } -#define __arch_swab32p ld_le32 static __inline__ void st_le32(volatile __u32 *addr, const __u32 val) { __asm__ __volatile__ ("stwbrx %1,0,%2" : "=m" (*addr) : "r" (val), "r" (addr)); } -static inline void __arch_swab32s(__u32 *addr) -{ - st_le32(addr, *addr); -} -#define __arch_swab32s __arch_swab32s - -static inline __attribute_const__ __u16 __arch_swab16(__u16 value) -{ - __u16 result; - - __asm__("rlwimi %0,%1,8,16,23" - : "=r" (result) - : "r" (value), "0" (value >> 8)); - return result; -} -#define __arch_swab16 __arch_swab16 - -static inline __attribute_const__ __u32 __arch_swab32(__u32 value) -{ - __u32 result; - - __asm__("rlwimi %0,%1,24,16,23\n\t" - "rlwimi %0,%1,8,8,15\n\t" - "rlwimi %0,%1,24,0,7" - : "=r" (result) - : "r" (value), "0" (value >> 24)); - return result; -} -#define __arch_swab32 __arch_swab32 - -#endif /* __GNUC__ */ #endif /* _ASM_POWERPC_SWAB_H */ diff --git a/arch/powerpc/kernel/ftrace.c b/arch/powerpc/kernel/ftrace.c index f202d0731b06..d178834fe508 100644 --- a/arch/powerpc/kernel/ftrace.c +++ b/arch/powerpc/kernel/ftrace.c @@ -10,6 +10,8 @@ * */ +#define pr_fmt(fmt) "ftrace-powerpc: " fmt + #include <linux/spinlock.h> #include <linux/hardirq.h> #include <linux/uaccess.h> @@ -105,7 +107,7 @@ __ftrace_make_nop(struct module *mod, struct dyn_ftrace *rec, unsigned long addr) { unsigned int op; - unsigned long ptr; + unsigned long entry, ptr; unsigned long ip = rec->ip; void *tramp; @@ -115,7 +117,7 @@ __ftrace_make_nop(struct module *mod, /* Make sure that that this is still a 24bit jump */ if (!is_bl_op(op)) { - printk(KERN_ERR "Not expected bl: opcode is %x\n", op); + pr_err("Not expected bl: opcode is %x\n", op); return -EINVAL; } @@ -125,21 +127,21 @@ __ftrace_make_nop(struct module *mod, pr_devel("ip:%lx jumps to %p", ip, tramp); if (!is_module_trampoline(tramp)) { - printk(KERN_ERR "Not a trampoline\n"); + pr_err("Not a trampoline\n"); return -EINVAL; } if (module_trampoline_target(mod, tramp, &ptr)) { - printk(KERN_ERR "Failed to get trampoline target\n"); + pr_err("Failed to get trampoline target\n"); return -EFAULT; } pr_devel("trampoline target %lx", ptr); + entry = ppc_global_function_entry((void *)addr); /* This should match what was called */ - if (ptr != ppc_function_entry((void *)addr)) { - printk(KERN_ERR "addr %lx does not match expected %lx\n", - ptr, ppc_function_entry((void *)addr)); + if (ptr != entry) { + pr_err("addr %lx does not match expected %lx\n", ptr, entry); return -EINVAL; } @@ -179,7 +181,7 @@ __ftrace_make_nop(struct module *mod, /* Make sure that that this is still a 24bit jump */ if (!is_bl_op(op)) { - printk(KERN_ERR "Not expected bl: opcode is %x\n", op); + pr_err("Not expected bl: opcode is %x\n", op); return -EINVAL; } @@ -198,7 +200,7 @@ __ftrace_make_nop(struct module *mod, /* Find where the trampoline jumps to */ if (probe_kernel_read(jmp, (void *)tramp, sizeof(jmp))) { - printk(KERN_ERR "Failed to read %lx\n", tramp); + pr_err("Failed to read %lx\n", tramp); return -EFAULT; } @@ -209,7 +211,7 @@ __ftrace_make_nop(struct module *mod, ((jmp[1] & 0xffff0000) != 0x398c0000) || (jmp[2] != 0x7d8903a6) || (jmp[3] != 0x4e800420)) { - printk(KERN_ERR "Not a trampoline\n"); + pr_err("Not a trampoline\n"); return -EINVAL; } @@ -221,8 +223,7 @@ __ftrace_make_nop(struct module *mod, pr_devel(" %lx ", tramp); if (tramp != addr) { - printk(KERN_ERR - "Trampoline location %08lx does not match addr\n", + pr_err("Trampoline location %08lx does not match addr\n", tramp); return -EINVAL; } @@ -263,15 +264,13 @@ int ftrace_make_nop(struct module *mod, */ if (!rec->arch.mod) { if (!mod) { - printk(KERN_ERR "No module loaded addr=%lx\n", - addr); + pr_err("No module loaded addr=%lx\n", addr); return -EFAULT; } rec->arch.mod = mod; } else if (mod) { if (mod != rec->arch.mod) { - printk(KERN_ERR - "Record mod %p not equal to passed in mod %p\n", + pr_err("Record mod %p not equal to passed in mod %p\n", rec->arch.mod, mod); return -EINVAL; } @@ -307,26 +306,25 @@ __ftrace_make_call(struct dyn_ftrace *rec, unsigned long addr) * The load offset is different depending on the ABI. For simplicity * just mask it out when doing the compare. */ - if ((op[0] != 0x48000008) || ((op[1] & 0xffff00000) != 0xe8410000)) { - printk(KERN_ERR "Unexpected call sequence: %x %x\n", - op[0], op[1]); + if ((op[0] != 0x48000008) || ((op[1] & 0xffff0000) != 0xe8410000)) { + pr_err("Unexpected call sequence: %x %x\n", op[0], op[1]); return -EINVAL; } /* If we never set up a trampoline to ftrace_caller, then bail */ if (!rec->arch.mod->arch.tramp) { - printk(KERN_ERR "No ftrace trampoline\n"); + pr_err("No ftrace trampoline\n"); return -EINVAL; } /* Ensure branch is within 24 bits */ - if (create_branch(ip, rec->arch.mod->arch.tramp, BRANCH_SET_LINK)) { - printk(KERN_ERR "Branch out of range"); + if (!create_branch(ip, rec->arch.mod->arch.tramp, BRANCH_SET_LINK)) { + pr_err("Branch out of range\n"); return -EINVAL; } if (patch_branch(ip, rec->arch.mod->arch.tramp, BRANCH_SET_LINK)) { - printk(KERN_ERR "REL24 out of range!\n"); + pr_err("REL24 out of range!\n"); return -EINVAL; } @@ -345,13 +343,13 @@ __ftrace_make_call(struct dyn_ftrace *rec, unsigned long addr) /* It should be pointing to a nop */ if (op != PPC_INST_NOP) { - printk(KERN_ERR "Expected NOP but have %x\n", op); + pr_err("Expected NOP but have %x\n", op); return -EINVAL; } /* If we never set up a trampoline to ftrace_caller, then bail */ if (!rec->arch.mod->arch.tramp) { - printk(KERN_ERR "No ftrace trampoline\n"); + pr_err("No ftrace trampoline\n"); return -EINVAL; } @@ -359,7 +357,7 @@ __ftrace_make_call(struct dyn_ftrace *rec, unsigned long addr) op = create_branch((unsigned int *)ip, rec->arch.mod->arch.tramp, BRANCH_SET_LINK); if (!op) { - printk(KERN_ERR "REL24 out of range!\n"); + pr_err("REL24 out of range!\n"); return -EINVAL; } @@ -397,7 +395,7 @@ int ftrace_make_call(struct dyn_ftrace *rec, unsigned long addr) * already have a module defined. */ if (!rec->arch.mod) { - printk(KERN_ERR "No module loaded\n"); + pr_err("No module loaded\n"); return -EINVAL; } diff --git a/arch/powerpc/kernel/iomap.c b/arch/powerpc/kernel/iomap.c index b82227e7e21b..12e48d56f771 100644 --- a/arch/powerpc/kernel/iomap.c +++ b/arch/powerpc/kernel/iomap.c @@ -23,7 +23,7 @@ unsigned int ioread16(void __iomem *addr) } unsigned int ioread16be(void __iomem *addr) { - return in_be16(addr); + return readw_be(addr); } unsigned int ioread32(void __iomem *addr) { @@ -31,7 +31,7 @@ unsigned int ioread32(void __iomem *addr) } unsigned int ioread32be(void __iomem *addr) { - return in_be32(addr); + return readl_be(addr); } EXPORT_SYMBOL(ioread8); EXPORT_SYMBOL(ioread16); @@ -49,7 +49,7 @@ void iowrite16(u16 val, void __iomem *addr) } void iowrite16be(u16 val, void __iomem *addr) { - out_be16(addr, val); + writew_be(val, addr); } void iowrite32(u32 val, void __iomem *addr) { @@ -57,7 +57,7 @@ void iowrite32(u32 val, void __iomem *addr) } void iowrite32be(u32 val, void __iomem *addr) { - out_be32(addr, val); + writel_be(val, addr); } EXPORT_SYMBOL(iowrite8); EXPORT_SYMBOL(iowrite16); @@ -75,15 +75,15 @@ EXPORT_SYMBOL(iowrite32be); */ void ioread8_rep(void __iomem *addr, void *dst, unsigned long count) { - _insb((u8 __iomem *) addr, dst, count); + readsb(addr, dst, count); } void ioread16_rep(void __iomem *addr, void *dst, unsigned long count) { - _insw_ns((u16 __iomem *) addr, dst, count); + readsw(addr, dst, count); } void ioread32_rep(void __iomem *addr, void *dst, unsigned long count) { - _insl_ns((u32 __iomem *) addr, dst, count); + readsl(addr, dst, count); } EXPORT_SYMBOL(ioread8_rep); EXPORT_SYMBOL(ioread16_rep); @@ -91,15 +91,15 @@ EXPORT_SYMBOL(ioread32_rep); void iowrite8_rep(void __iomem *addr, const void *src, unsigned long count) { - _outsb((u8 __iomem *) addr, src, count); + writesb(addr, src, count); } void iowrite16_rep(void __iomem *addr, const void *src, unsigned long count) { - _outsw_ns((u16 __iomem *) addr, src, count); + writesw(addr, src, count); } void iowrite32_rep(void __iomem *addr, const void *src, unsigned long count) { - _outsl_ns((u32 __iomem *) addr, src, count); + writesl(addr, src, count); } EXPORT_SYMBOL(iowrite8_rep); EXPORT_SYMBOL(iowrite16_rep); diff --git a/arch/powerpc/kernel/kprobes.c b/arch/powerpc/kernel/kprobes.c index 90fab64d911d..2f72af82513c 100644 --- a/arch/powerpc/kernel/kprobes.c +++ b/arch/powerpc/kernel/kprobes.c @@ -32,6 +32,7 @@ #include <linux/module.h> #include <linux/kdebug.h> #include <linux/slab.h> +#include <asm/code-patching.h> #include <asm/cacheflush.h> #include <asm/sstep.h> #include <asm/uaccess.h> @@ -491,12 +492,10 @@ int __kprobes kprobe_exceptions_notify(struct notifier_block *self, return ret; } -#ifdef CONFIG_PPC64 unsigned long arch_deref_entry_point(void *entry) { - return ((func_descr_t *)entry)->entry; + return ppc_global_function_entry(entry); } -#endif int __kprobes setjmp_pre_handler(struct kprobe *p, struct pt_regs *regs) { @@ -508,8 +507,12 @@ int __kprobes setjmp_pre_handler(struct kprobe *p, struct pt_regs *regs) /* setup return addr to the jprobe handler routine */ regs->nip = arch_deref_entry_point(jp->entry); #ifdef CONFIG_PPC64 +#if defined(_CALL_ELF) && _CALL_ELF == 2 + regs->gpr[12] = (unsigned long)jp->entry; +#else regs->gpr[2] = (unsigned long)(((func_descr_t *)jp->entry)->toc); #endif +#endif return 1; } diff --git a/arch/powerpc/kernel/module_64.c b/arch/powerpc/kernel/module_64.c index 077d2ce6c5a7..d807ee626af9 100644 --- a/arch/powerpc/kernel/module_64.c +++ b/arch/powerpc/kernel/module_64.c @@ -315,8 +315,17 @@ static void dedotify_versions(struct modversion_info *vers, struct modversion_info *end; for (end = (void *)vers + size; vers < end; vers++) - if (vers->name[0] == '.') + if (vers->name[0] == '.') { memmove(vers->name, vers->name+1, strlen(vers->name)); +#ifdef ARCH_RELOCATES_KCRCTAB + /* The TOC symbol has no CRC computed. To avoid CRC + * check failing, we must force it to the expected + * value (see CRC check in module.c). + */ + if (!strcmp(vers->name, "TOC.")) + vers->crc = -(unsigned long)reloc_start; +#endif + } } /* Undefined symbols which refer to .funcname, hack to funcname (or .TOC.) */ diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c index 613a860a203c..b694b0730971 100644 --- a/arch/powerpc/kernel/prom.c +++ b/arch/powerpc/kernel/prom.c @@ -662,13 +662,6 @@ void __init early_init_devtree(void *params) of_scan_flat_dt(early_init_dt_scan_fw_dump, NULL); #endif - /* Pre-initialize the cmd_line with the content of boot_commmand_line, - * which will be empty except when the content of the variable has - * been overriden by a bootloading mechanism. This happens typically - * with HAL takeover - */ - strlcpy(cmd_line, boot_command_line, COMMAND_LINE_SIZE); - /* Retrieve various informations from the /chosen node of the * device-tree, including the platform type, initrd location and * size, TCE reserve, and more ... diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c index 078145acf7fb..1a85d8f96739 100644 --- a/arch/powerpc/kernel/prom_init.c +++ b/arch/powerpc/kernel/prom_init.c @@ -1268,201 +1268,6 @@ static u64 __initdata prom_opal_base; static u64 __initdata prom_opal_entry; #endif -#ifdef __BIG_ENDIAN__ -/* XXX Don't change this structure without updating opal-takeover.S */ -static struct opal_secondary_data { - s64 ack; /* 0 */ - u64 go; /* 8 */ - struct opal_takeover_args args; /* 16 */ -} opal_secondary_data; - -static u64 __initdata prom_opal_align; -static u64 __initdata prom_opal_size; -static int __initdata prom_rtas_start_cpu; -static u64 __initdata prom_rtas_data; -static u64 __initdata prom_rtas_entry; - -extern char opal_secondary_entry; - -static void __init prom_query_opal(void) -{ - long rc; - - /* We must not query for OPAL presence on a machine that - * supports TNK takeover (970 blades), as this uses the same - * h-call with different arguments and will crash - */ - if (PHANDLE_VALID(call_prom("finddevice", 1, 1, - ADDR("/tnk-memory-map")))) { - prom_printf("TNK takeover detected, skipping OPAL check\n"); - return; - } - - prom_printf("Querying for OPAL presence... "); - - rc = opal_query_takeover(&prom_opal_size, - &prom_opal_align); - prom_debug("(rc = %ld) ", rc); - if (rc != 0) { - prom_printf("not there.\n"); - return; - } - of_platform = PLATFORM_OPAL; - prom_printf(" there !\n"); - prom_debug(" opal_size = 0x%lx\n", prom_opal_size); - prom_debug(" opal_align = 0x%lx\n", prom_opal_align); - if (prom_opal_align < 0x10000) - prom_opal_align = 0x10000; -} - -static int __init prom_rtas_call(int token, int nargs, int nret, - int *outputs, ...) -{ - struct rtas_args rtas_args; - va_list list; - int i; - - rtas_args.token = token; - rtas_args.nargs = nargs; - rtas_args.nret = nret; - rtas_args.rets = (rtas_arg_t *)&(rtas_args.args[nargs]); - va_start(list, outputs); - for (i = 0; i < nargs; ++i) - rtas_args.args[i] = va_arg(list, rtas_arg_t); - va_end(list); - - for (i = 0; i < nret; ++i) - rtas_args.rets[i] = 0; - - opal_enter_rtas(&rtas_args, prom_rtas_data, - prom_rtas_entry); - - if (nret > 1 && outputs != NULL) - for (i = 0; i < nret-1; ++i) - outputs[i] = rtas_args.rets[i+1]; - return (nret > 0)? rtas_args.rets[0]: 0; -} - -static void __init prom_opal_hold_cpus(void) -{ - int i, cnt, cpu, rc; - long j; - phandle node; - char type[64]; - u32 servers[8]; - void *entry = (unsigned long *)&opal_secondary_entry; - struct opal_secondary_data *data = &opal_secondary_data; - - prom_debug("prom_opal_hold_cpus: start...\n"); - prom_debug(" - entry = 0x%x\n", entry); - prom_debug(" - data = 0x%x\n", data); - - data->ack = -1; - data->go = 0; - - /* look for cpus */ - for (node = 0; prom_next_node(&node); ) { - type[0] = 0; - prom_getprop(node, "device_type", type, sizeof(type)); - if (strcmp(type, "cpu") != 0) - continue; - - /* Skip non-configured cpus. */ - if (prom_getprop(node, "status", type, sizeof(type)) > 0) - if (strcmp(type, "okay") != 0) - continue; - - cnt = prom_getprop(node, "ibm,ppc-interrupt-server#s", servers, - sizeof(servers)); - if (cnt == PROM_ERROR) - break; - cnt >>= 2; - for (i = 0; i < cnt; i++) { - cpu = servers[i]; - prom_debug("CPU %d ... ", cpu); - if (cpu == prom.cpu) { - prom_debug("booted !\n"); - continue; - } - prom_debug("starting ... "); - - /* Init the acknowledge var which will be reset by - * the secondary cpu when it awakens from its OF - * spinloop. - */ - data->ack = -1; - rc = prom_rtas_call(prom_rtas_start_cpu, 3, 1, - NULL, cpu, entry, data); - prom_debug("rtas rc=%d ...", rc); - - for (j = 0; j < 100000000 && data->ack == -1; j++) { - HMT_low(); - mb(); - } - HMT_medium(); - if (data->ack != -1) - prom_debug("done, PIR=0x%x\n", data->ack); - else - prom_debug("timeout !\n"); - } - } - prom_debug("prom_opal_hold_cpus: end...\n"); -} - -static void __init prom_opal_takeover(void) -{ - struct opal_secondary_data *data = &opal_secondary_data; - struct opal_takeover_args *args = &data->args; - u64 align = prom_opal_align; - u64 top_addr, opal_addr; - - args->k_image = (u64)_stext; - args->k_size = _end - _stext; - args->k_entry = 0; - args->k_entry2 = 0x60; - - top_addr = _ALIGN_UP(args->k_size, align); - - if (prom_initrd_start != 0) { - args->rd_image = prom_initrd_start; - args->rd_size = prom_initrd_end - args->rd_image; - args->rd_loc = top_addr; - top_addr = _ALIGN_UP(args->rd_loc + args->rd_size, align); - } - - /* Pickup an address for the HAL. We want to go really high - * up to avoid problem with future kexecs. On the other hand - * we don't want to be all over the TCEs on P5IOC2 machines - * which are going to be up there too. We assume the machine - * has plenty of memory, and we ask for the HAL for now to - * be just below the 1G point, or above the initrd - */ - opal_addr = _ALIGN_DOWN(0x40000000 - prom_opal_size, align); - if (opal_addr < top_addr) - opal_addr = top_addr; - args->hal_addr = opal_addr; - - /* Copy the command line to the kernel image */ - strlcpy(boot_command_line, prom_cmd_line, - COMMAND_LINE_SIZE); - - prom_debug(" k_image = 0x%lx\n", args->k_image); - prom_debug(" k_size = 0x%lx\n", args->k_size); - prom_debug(" k_entry = 0x%lx\n", args->k_entry); - prom_debug(" k_entry2 = 0x%lx\n", args->k_entry2); - prom_debug(" hal_addr = 0x%lx\n", args->hal_addr); - prom_debug(" rd_image = 0x%lx\n", args->rd_image); - prom_debug(" rd_size = 0x%lx\n", args->rd_size); - prom_debug(" rd_loc = 0x%lx\n", args->rd_loc); - prom_printf("Performing OPAL takeover,this can take a few minutes..\n"); - prom_close_stdin(); - mb(); - data->go = 1; - for (;;) - opal_do_takeover(args); -} -#endif /* __BIG_ENDIAN__ */ - /* * Allocate room for and instantiate OPAL */ @@ -1597,12 +1402,6 @@ static void __init prom_instantiate_rtas(void) &val, sizeof(val)) != PROM_ERROR) rtas_has_query_cpu_stopped = true; -#if defined(CONFIG_PPC_POWERNV) && defined(__BIG_ENDIAN__) - /* PowerVN takeover hack */ - prom_rtas_data = base; - prom_rtas_entry = entry; - prom_getprop(rtas_node, "start-cpu", &prom_rtas_start_cpu, 4); -#endif prom_debug("rtas base = 0x%x\n", base); prom_debug("rtas entry = 0x%x\n", entry); prom_debug("rtas size = 0x%x\n", (long)size); @@ -3027,16 +2826,6 @@ unsigned long __init prom_init(unsigned long r3, unsigned long r4, prom_instantiate_rtas(); #ifdef CONFIG_PPC_POWERNV -#ifdef __BIG_ENDIAN__ - /* Detect HAL and try instanciating it & doing takeover */ - if (of_platform == PLATFORM_PSERIES_LPAR) { - prom_query_opal(); - if (of_platform == PLATFORM_OPAL) { - prom_opal_hold_cpus(); - prom_opal_takeover(); - } - } else -#endif /* __BIG_ENDIAN__ */ if (of_platform == PLATFORM_OPAL) prom_instantiate_opal(); #endif /* CONFIG_PPC_POWERNV */ diff --git a/arch/powerpc/kernel/prom_init_check.sh b/arch/powerpc/kernel/prom_init_check.sh index 77aa1e95e904..fe8e54b9ef7d 100644 --- a/arch/powerpc/kernel/prom_init_check.sh +++ b/arch/powerpc/kernel/prom_init_check.sh @@ -21,9 +21,7 @@ _end enter_prom memcpy memset reloc_offset __secondary_hold __secondary_hold_acknowledge __secondary_hold_spinloop __start strcmp strcpy strlcpy strlen strncmp strstr logo_linux_clut224 reloc_got2 kernstart_addr memstart_addr linux_banner _stext -opal_query_takeover opal_do_takeover opal_enter_rtas opal_secondary_entry -boot_command_line __prom_init_toc_start __prom_init_toc_end -btext_setup_display TOC." +__prom_init_toc_start __prom_init_toc_end btext_setup_display TOC." NM="$1" OBJ="$2" diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c index e239df3768ac..e5b022c55ccd 100644 --- a/arch/powerpc/kernel/setup-common.c +++ b/arch/powerpc/kernel/setup-common.c @@ -469,9 +469,17 @@ void __init smp_setup_cpu_maps(void) } for (j = 0; j < nthreads && cpu < nr_cpu_ids; j++) { + bool avail; + DBG(" thread %d -> cpu %d (hard id %d)\n", j, cpu, be32_to_cpu(intserv[j])); - set_cpu_present(cpu, of_device_is_available(dn)); + + avail = of_device_is_available(dn); + if (!avail) + avail = !of_property_match_string(dn, + "enable-method", "spin-table"); + + set_cpu_present(cpu, avail); set_hard_smp_processor_id(cpu, be32_to_cpu(intserv[j])); set_cpu_possible(cpu, true); cpu++; diff --git a/arch/powerpc/kernel/signal_32.c b/arch/powerpc/kernel/signal_32.c index 4e47db686b5d..1bc5a1755ed4 100644 --- a/arch/powerpc/kernel/signal_32.c +++ b/arch/powerpc/kernel/signal_32.c @@ -54,7 +54,6 @@ #include "signal.h" -#undef DEBUG_SIG #ifdef CONFIG_PPC64 #define sys_rt_sigreturn compat_sys_rt_sigreturn @@ -1063,10 +1062,6 @@ int handle_rt_signal32(unsigned long sig, struct k_sigaction *ka, return 1; badframe: -#ifdef DEBUG_SIG - printk("badframe in handle_rt_signal, regs=%p frame=%p newsp=%lx\n", - regs, frame, newsp); -#endif if (show_unhandled_signals) printk_ratelimited(KERN_INFO "%s[%d]: bad frame in handle_rt_signal32: " @@ -1484,10 +1479,6 @@ int handle_signal32(unsigned long sig, struct k_sigaction *ka, return 1; badframe: -#ifdef DEBUG_SIG - printk("badframe in handle_signal, regs=%p frame=%p newsp=%lx\n", - regs, frame, newsp); -#endif if (show_unhandled_signals) printk_ratelimited(KERN_INFO "%s[%d]: bad frame in handle_signal32: " diff --git a/arch/powerpc/kernel/signal_64.c b/arch/powerpc/kernel/signal_64.c index d501dc4dc3e6..97c1e4b683fc 100644 --- a/arch/powerpc/kernel/signal_64.c +++ b/arch/powerpc/kernel/signal_64.c @@ -38,7 +38,6 @@ #include "signal.h" -#define DEBUG_SIG 0 #define GP_REGS_SIZE min(sizeof(elf_gregset_t), sizeof(struct pt_regs)) #define FP_REGS_SIZE sizeof(elf_fpregset_t) @@ -700,10 +699,6 @@ int sys_rt_sigreturn(unsigned long r3, unsigned long r4, unsigned long r5, return 0; badframe: -#if DEBUG_SIG - printk("badframe in sys_rt_sigreturn, regs=%p uc=%p &uc->uc_mcontext=%p\n", - regs, uc, &uc->uc_mcontext); -#endif if (show_unhandled_signals) printk_ratelimited(regs->msr & MSR_64BIT ? fmt64 : fmt32, current->comm, current->pid, "rt_sigreturn", @@ -809,10 +804,6 @@ int handle_rt_signal64(int signr, struct k_sigaction *ka, siginfo_t *info, return 1; badframe: -#if DEBUG_SIG - printk("badframe in setup_rt_frame, regs=%p frame=%p newsp=%lx\n", - regs, frame, newsp); -#endif if (show_unhandled_signals) printk_ratelimited(regs->msr & MSR_64BIT ? fmt64 : fmt32, current->comm, current->pid, "setup_rt_frame", diff --git a/arch/powerpc/platforms/cell/cbe_thermal.c b/arch/powerpc/platforms/cell/cbe_thermal.c index 94560db788bf..2c15ff094483 100644 --- a/arch/powerpc/platforms/cell/cbe_thermal.c +++ b/arch/powerpc/platforms/cell/cbe_thermal.c @@ -125,7 +125,7 @@ static ssize_t show_throttle(struct cbe_pmd_regs __iomem *pmd_regs, char *buf, i static ssize_t store_throttle(struct cbe_pmd_regs __iomem *pmd_regs, const char *buf, size_t size, int pos) { u64 reg_value; - int temp; + unsigned int temp; u64 new_value; int ret; diff --git a/arch/powerpc/platforms/powernv/Makefile b/arch/powerpc/platforms/powernv/Makefile index d55891f89a2c..4ad227d04c1a 100644 --- a/arch/powerpc/platforms/powernv/Makefile +++ b/arch/powerpc/platforms/powernv/Makefile @@ -1,4 +1,4 @@ -obj-y += setup.o opal-takeover.o opal-wrappers.o opal.o opal-async.o +obj-y += setup.o opal-wrappers.o opal.o opal-async.o obj-y += opal-rtc.o opal-nvram.o opal-lpc.o opal-flash.o obj-y += rng.o opal-elog.o opal-dump.o opal-sysparam.o opal-sensor.o obj-y += opal-msglog.o diff --git a/arch/powerpc/platforms/powernv/opal-takeover.S b/arch/powerpc/platforms/powernv/opal-takeover.S deleted file mode 100644 index 11a3169ee583..000000000000 --- a/arch/powerpc/platforms/powernv/opal-takeover.S +++ /dev/null @@ -1,140 +0,0 @@ -/* - * PowerNV OPAL takeover assembly code, for use by prom_init.c - * - * Copyright 2011 IBM Corp. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - */ - -#include <asm/ppc_asm.h> -#include <asm/hvcall.h> -#include <asm/asm-offsets.h> -#include <asm/opal.h> - -#define H_HAL_TAKEOVER 0x5124 -#define H_HAL_TAKEOVER_QUERY_MAGIC -1 - - .text -_GLOBAL(opal_query_takeover) - mfcr r0 - stw r0,8(r1) - stdu r1,-STACKFRAMESIZE(r1) - std r3,STK_PARAM(R3)(r1) - std r4,STK_PARAM(R4)(r1) - li r3,H_HAL_TAKEOVER - li r4,H_HAL_TAKEOVER_QUERY_MAGIC - HVSC - addi r1,r1,STACKFRAMESIZE - ld r10,STK_PARAM(R3)(r1) - std r4,0(r10) - ld r10,STK_PARAM(R4)(r1) - std r5,0(r10) - lwz r0,8(r1) - mtcrf 0xff,r0 - blr - -_GLOBAL(opal_do_takeover) - mfcr r0 - stw r0,8(r1) - mflr r0 - std r0,16(r1) - bl __opal_do_takeover - ld r0,16(r1) - mtlr r0 - lwz r0,8(r1) - mtcrf 0xff,r0 - blr - -__opal_do_takeover: - ld r4,0(r3) - ld r5,0x8(r3) - ld r6,0x10(r3) - ld r7,0x18(r3) - ld r8,0x20(r3) - ld r9,0x28(r3) - ld r10,0x30(r3) - ld r11,0x38(r3) - li r3,H_HAL_TAKEOVER - HVSC - blr - - .globl opal_secondary_entry -opal_secondary_entry: - mr r31,r3 - mfmsr r11 - li r12,(MSR_SF | MSR_ISF)@highest - sldi r12,r12,48 - or r11,r11,r12 - mtmsrd r11 - isync - mfspr r4,SPRN_PIR - std r4,0(r3) -1: HMT_LOW - ld r4,8(r3) - cmpli cr0,r4,0 - beq 1b - HMT_MEDIUM -1: addi r3,r31,16 - bl __opal_do_takeover - b 1b - -_GLOBAL(opal_enter_rtas) - mflr r0 - std r0,16(r1) - stdu r1,-PROM_FRAME_SIZE(r1) /* Save SP and create stack space */ - - /* Because PROM is running in 32b mode, it clobbers the high order half - * of all registers that it saves. We therefore save those registers - * PROM might touch to the stack. (r0, r3-r13 are caller saved) - */ - SAVE_GPR(2, r1) - SAVE_GPR(13, r1) - SAVE_8GPRS(14, r1) - SAVE_10GPRS(22, r1) - mfcr r10 - mfmsr r11 - std r10,_CCR(r1) - std r11,_MSR(r1) - - /* Get the PROM entrypoint */ - mtlr r5 - - /* Switch MSR to 32 bits mode - */ - li r12,1 - rldicr r12,r12,MSR_SF_LG,(63-MSR_SF_LG) - andc r11,r11,r12 - li r12,1 - rldicr r12,r12,MSR_ISF_LG,(63-MSR_ISF_LG) - andc r11,r11,r12 - mtmsrd r11 - isync - - /* Enter RTAS here... */ - blrl - - /* Just make sure that r1 top 32 bits didn't get - * corrupt by OF - */ - rldicl r1,r1,0,32 - - /* Restore the MSR (back to 64 bits) */ - ld r0,_MSR(r1) - MTMSRD(r0) - isync - - /* Restore other registers */ - REST_GPR(2, r1) - REST_GPR(13, r1) - REST_8GPRS(14, r1) - REST_10GPRS(22, r1) - ld r4,_CCR(r1) - mtcr r4 - - addi r1,r1,PROM_FRAME_SIZE - ld r0,16(r1) - mtlr r0 - blr diff --git a/arch/powerpc/sysdev/dart_iommu.c b/arch/powerpc/sysdev/dart_iommu.c index 62c47bb76517..9e5353ff6d1b 100644 --- a/arch/powerpc/sysdev/dart_iommu.c +++ b/arch/powerpc/sysdev/dart_iommu.c @@ -476,6 +476,11 @@ void __init alloc_dart_table(void) */ dart_tablebase = (unsigned long) __va(memblock_alloc_base(1UL<<24, 1UL<<24, 0x80000000L)); + /* + * The DART space is later unmapped from the kernel linear mapping and + * accessing dart_tablebase during kmemleak scanning will fault. + */ + kmemleak_no_scan((void *)dart_tablebase); printk(KERN_INFO "DART table allocated at: %lx\n", dart_tablebase); } diff --git a/arch/s390/include/uapi/asm/Kbuild b/arch/s390/include/uapi/asm/Kbuild index 6a9a9eb645f5..736637363d31 100644 --- a/arch/s390/include/uapi/asm/Kbuild +++ b/arch/s390/include/uapi/asm/Kbuild @@ -36,6 +36,7 @@ header-y += signal.h header-y += socket.h header-y += sockios.h header-y += sclp_ctl.h +header-y += sie.h header-y += stat.h header-y += statfs.h header-y += swab.h diff --git a/arch/s390/include/uapi/asm/sie.h b/arch/s390/include/uapi/asm/sie.h index 3d97f610198d..5d9cc19462c4 100644 --- a/arch/s390/include/uapi/asm/sie.h +++ b/arch/s390/include/uapi/asm/sie.h @@ -1,8 +1,6 @@ #ifndef _UAPI_ASM_S390_SIE_H #define _UAPI_ASM_S390_SIE_H -#include <asm/sigp.h> - #define diagnose_codes \ { 0x10, "DIAG (0x10) release pages" }, \ { 0x44, "DIAG (0x44) time slice end" }, \ @@ -13,18 +11,18 @@ { 0x500, "DIAG (0x500) KVM virtio functions" }, \ { 0x501, "DIAG (0x501) KVM breakpoint" } -#define sigp_order_codes \ - { SIGP_SENSE, "SIGP sense" }, \ - { SIGP_EXTERNAL_CALL, "SIGP external call" }, \ - { SIGP_EMERGENCY_SIGNAL, "SIGP emergency signal" }, \ - { SIGP_STOP, "SIGP stop" }, \ - { SIGP_STOP_AND_STORE_STATUS, "SIGP stop and store status" }, \ - { SIGP_SET_ARCHITECTURE, "SIGP set architecture" }, \ - { SIGP_SET_PREFIX, "SIGP set prefix" }, \ - { SIGP_SENSE_RUNNING, "SIGP sense running" }, \ - { SIGP_RESTART, "SIGP restart" }, \ - { SIGP_INITIAL_CPU_RESET, "SIGP initial cpu reset" }, \ - { SIGP_STORE_STATUS_AT_ADDRESS, "SIGP store status at address" } +#define sigp_order_codes \ + { 0x01, "SIGP sense" }, \ + { 0x02, "SIGP external call" }, \ + { 0x03, "SIGP emergency signal" }, \ + { 0x05, "SIGP stop" }, \ + { 0x06, "SIGP restart" }, \ + { 0x09, "SIGP stop and store status" }, \ + { 0x0b, "SIGP initial cpu reset" }, \ + { 0x0d, "SIGP set prefix" }, \ + { 0x0e, "SIGP store status at address" }, \ + { 0x12, "SIGP set architecture" }, \ + { 0x15, "SIGP sense running" } #define icpt_prog_codes \ { 0x0001, "Prog Operation" }, \ diff --git a/arch/sparc/include/asm/irq_64.h b/arch/sparc/include/asm/irq_64.h index 375cffcf7dbd..91d219381306 100644 --- a/arch/sparc/include/asm/irq_64.h +++ b/arch/sparc/include/asm/irq_64.h @@ -89,7 +89,7 @@ static inline unsigned long get_softint(void) return retval; } -void arch_trigger_all_cpu_backtrace(void); +void arch_trigger_all_cpu_backtrace(bool); #define arch_trigger_all_cpu_backtrace arch_trigger_all_cpu_backtrace extern void *hardirq_stack[NR_CPUS]; diff --git a/arch/sparc/kernel/process_64.c b/arch/sparc/kernel/process_64.c index b2988f25e230..027e09986194 100644 --- a/arch/sparc/kernel/process_64.c +++ b/arch/sparc/kernel/process_64.c @@ -239,7 +239,7 @@ static void __global_reg_poll(struct global_reg_snapshot *gp) } } -void arch_trigger_all_cpu_backtrace(void) +void arch_trigger_all_cpu_backtrace(bool include_self) { struct thread_info *tp = current_thread_info(); struct pt_regs *regs = get_irq_regs(); @@ -251,16 +251,22 @@ void arch_trigger_all_cpu_backtrace(void) spin_lock_irqsave(&global_cpu_snapshot_lock, flags); - memset(global_cpu_snapshot, 0, sizeof(global_cpu_snapshot)); - this_cpu = raw_smp_processor_id(); - __global_reg_self(tp, regs, this_cpu); + memset(global_cpu_snapshot, 0, sizeof(global_cpu_snapshot)); + + if (include_self) + __global_reg_self(tp, regs, this_cpu); smp_fetch_global_regs(); for_each_online_cpu(cpu) { - struct global_reg_snapshot *gp = &global_cpu_snapshot[cpu].reg; + struct global_reg_snapshot *gp; + + if (!include_self && cpu == this_cpu) + continue; + + gp = &global_cpu_snapshot[cpu].reg; __global_reg_poll(gp); @@ -292,7 +298,7 @@ void arch_trigger_all_cpu_backtrace(void) static void sysrq_handle_globreg(int key) { - arch_trigger_all_cpu_backtrace(); + arch_trigger_all_cpu_backtrace(true); } static struct sysrq_key_op sparc_globalreg_op = { diff --git a/arch/x86/include/asm/irq.h b/arch/x86/include/asm/irq.h index cb6cfcd034cf..a80cbb88ea91 100644 --- a/arch/x86/include/asm/irq.h +++ b/arch/x86/include/asm/irq.h @@ -43,7 +43,7 @@ extern int vector_used_by_percpu_irq(unsigned int vector); extern void init_ISA_irqs(void); #ifdef CONFIG_X86_LOCAL_APIC -void arch_trigger_all_cpu_backtrace(void); +void arch_trigger_all_cpu_backtrace(bool); #define arch_trigger_all_cpu_backtrace arch_trigger_all_cpu_backtrace #endif diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index 49314155b66c..49205d01b9ad 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -95,7 +95,7 @@ static inline gfn_t gfn_to_index(gfn_t gfn, gfn_t base_gfn, int level) #define KVM_REFILL_PAGES 25 #define KVM_MAX_CPUID_ENTRIES 80 #define KVM_NR_FIXED_MTRR_REGION 88 -#define KVM_NR_VAR_MTRR 8 +#define KVM_NR_VAR_MTRR 10 #define ASYNC_PF_PER_VCPU 64 @@ -461,7 +461,7 @@ struct kvm_vcpu_arch { bool nmi_injected; /* Trying to inject an NMI this entry */ struct mtrr_state_type mtrr_state; - u32 pat; + u64 pat; unsigned switch_db_regs; unsigned long db[KVM_NR_DB_REGS]; diff --git a/arch/x86/include/asm/ptrace.h b/arch/x86/include/asm/ptrace.h index 14fd6fd75a19..6205f0c434db 100644 --- a/arch/x86/include/asm/ptrace.h +++ b/arch/x86/include/asm/ptrace.h @@ -231,6 +231,22 @@ static inline unsigned long regs_get_kernel_stack_nth(struct pt_regs *regs, #define ARCH_HAS_USER_SINGLE_STEP_INFO +/* + * When hitting ptrace_stop(), we cannot return using SYSRET because + * that does not restore the full CPU state, only a minimal set. The + * ptracer can change arbitrary register values, which is usually okay + * because the usual ptrace stops run off the signal delivery path which + * forces IRET; however, ptrace_event() stops happen in arbitrary places + * in the kernel and don't force IRET path. + * + * So force IRET path after a ptrace stop. + */ +#define arch_ptrace_stop_needed(code, info) \ +({ \ + set_thread_flag(TIF_NOTIFY_RESUME); \ + false; \ +}) + struct user_desc; extern int do_get_thread_area(struct task_struct *p, int idx, struct user_desc __user *info); diff --git a/arch/x86/kernel/apic/hw_nmi.c b/arch/x86/kernel/apic/hw_nmi.c index c3fcb5de5083..6a1e71bde323 100644 --- a/arch/x86/kernel/apic/hw_nmi.c +++ b/arch/x86/kernel/apic/hw_nmi.c @@ -33,31 +33,41 @@ static DECLARE_BITMAP(backtrace_mask, NR_CPUS) __read_mostly; /* "in progress" flag of arch_trigger_all_cpu_backtrace */ static unsigned long backtrace_flag; -void arch_trigger_all_cpu_backtrace(void) +void arch_trigger_all_cpu_backtrace(bool include_self) { int i; + int cpu = get_cpu(); - if (test_and_set_bit(0, &backtrace_flag)) + if (test_and_set_bit(0, &backtrace_flag)) { /* * If there is already a trigger_all_cpu_backtrace() in progress * (backtrace_flag == 1), don't output double cpu dump infos. */ + put_cpu(); return; + } cpumask_copy(to_cpumask(backtrace_mask), cpu_online_mask); + if (!include_self) + cpumask_clear_cpu(cpu, to_cpumask(backtrace_mask)); - printk(KERN_INFO "sending NMI to all CPUs:\n"); - apic->send_IPI_all(NMI_VECTOR); + if (!cpumask_empty(to_cpumask(backtrace_mask))) { + pr_info("sending NMI to %s CPUs:\n", + (include_self ? "all" : "other")); + apic->send_IPI_mask(to_cpumask(backtrace_mask), NMI_VECTOR); + } /* Wait for up to 10 seconds for all CPUs to do the backtrace */ for (i = 0; i < 10 * 1000; i++) { if (cpumask_empty(to_cpumask(backtrace_mask))) break; mdelay(1); + touch_softlockup_watchdog(); } clear_bit(0, &backtrace_flag); smp_mb__after_atomic(); + put_cpu(); } static int diff --git a/arch/x86/kernel/entry_32.S b/arch/x86/kernel/entry_32.S index f0da82b8e634..dbaa23e78b36 100644 --- a/arch/x86/kernel/entry_32.S +++ b/arch/x86/kernel/entry_32.S @@ -423,9 +423,10 @@ sysenter_past_esp: jnz sysenter_audit sysenter_do_call: cmpl $(NR_syscalls), %eax - jae syscall_badsys + jae sysenter_badsys call *sys_call_table(,%eax,4) movl %eax,PT_EAX(%esp) +sysenter_after_call: LOCKDEP_SYS_EXIT DISABLE_INTERRUPTS(CLBR_ANY) TRACE_IRQS_OFF @@ -675,7 +676,12 @@ END(syscall_fault) syscall_badsys: movl $-ENOSYS,PT_EAX(%esp) - jmp resume_userspace + jmp syscall_exit +END(syscall_badsys) + +sysenter_badsys: + movl $-ENOSYS,PT_EAX(%esp) + jmp sysenter_after_call END(syscall_badsys) CFI_ENDPROC diff --git a/arch/x86/kernel/signal.c b/arch/x86/kernel/signal.c index a0da58db43a8..2851d63c1202 100644 --- a/arch/x86/kernel/signal.c +++ b/arch/x86/kernel/signal.c @@ -363,7 +363,7 @@ static int __setup_rt_frame(int sig, struct ksignal *ksig, /* Set up to return from userspace. */ restorer = current->mm->context.vdso + - selected_vdso32->sym___kernel_sigreturn; + selected_vdso32->sym___kernel_rt_sigreturn; if (ksig->ka.sa.sa_flags & SA_RESTORER) restorer = ksig->ka.sa.sa_restorer; put_user_ex(restorer, &frame->pretcode); diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index ec8366c5cfea..b5e994ad0135 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -1462,6 +1462,7 @@ static void svm_get_segment(struct kvm_vcpu *vcpu, */ if (var->unusable) var->db = 0; + var->dpl = to_svm(vcpu)->vmcb->save.cpl; break; } } diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index f32a02578c0d..f6449334ec45 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -1898,7 +1898,7 @@ static int set_msr_hyperv_pw(struct kvm_vcpu *vcpu, u32 msr, u64 data) if (!(data & HV_X64_MSR_TSC_REFERENCE_ENABLE)) break; gfn = data >> HV_X64_MSR_TSC_REFERENCE_ADDRESS_SHIFT; - if (kvm_write_guest(kvm, data, + if (kvm_write_guest(kvm, gfn << HV_X64_MSR_TSC_REFERENCE_ADDRESS_SHIFT, &tsc_ref, sizeof(tsc_ref))) return 1; mark_page_dirty(kvm, gfn); diff --git a/arch/x86/vdso/Makefile b/arch/x86/vdso/Makefile index 3c0809a0631f..61b04fe36e66 100644 --- a/arch/x86/vdso/Makefile +++ b/arch/x86/vdso/Makefile @@ -11,7 +11,6 @@ VDSO32-$(CONFIG_COMPAT) := y # files to link into the vdso vobjs-y := vdso-note.o vclock_gettime.o vgetcpu.o vdso-fakesections.o -vobjs-nox32 := vdso-fakesections.o # files to link into kernel obj-y += vma.o @@ -67,7 +66,8 @@ $(obj)/vdso-image-%.c: $(obj)/vdso%.so.dbg $(obj)/vdso2c FORCE # CFL := $(PROFILING) -mcmodel=small -fPIC -O2 -fasynchronous-unwind-tables -m64 \ $(filter -g%,$(KBUILD_CFLAGS)) $(call cc-option, -fno-stack-protector) \ - -fno-omit-frame-pointer -foptimize-sibling-calls + -fno-omit-frame-pointer -foptimize-sibling-calls \ + -DDISABLE_BRANCH_PROFILING $(vobjs): KBUILD_CFLAGS += $(CFL) @@ -134,7 +134,7 @@ override obj-dirs = $(dir $(obj)) $(obj)/vdso32/ targets += vdso32/vdso32.lds targets += vdso32/note.o vdso32/vclock_gettime.o $(vdso32.so-y:%=vdso32/%.o) -targets += vdso32/vclock_gettime.o +targets += vdso32/vclock_gettime.o vdso32/vdso-fakesections.o $(obj)/vdso32.o: $(vdso32-images:%=$(obj)/%) @@ -150,11 +150,13 @@ KBUILD_CFLAGS_32 += -m32 -msoft-float -mregparm=0 -fpic KBUILD_CFLAGS_32 += $(call cc-option, -fno-stack-protector) KBUILD_CFLAGS_32 += $(call cc-option, -foptimize-sibling-calls) KBUILD_CFLAGS_32 += -fno-omit-frame-pointer +KBUILD_CFLAGS_32 += -DDISABLE_BRANCH_PROFILING $(vdso32-images:%=$(obj)/%.dbg): KBUILD_CFLAGS = $(KBUILD_CFLAGS_32) $(vdso32-images:%=$(obj)/%.dbg): $(obj)/vdso32-%.so.dbg: FORCE \ $(obj)/vdso32/vdso32.lds \ $(obj)/vdso32/vclock_gettime.o \ + $(obj)/vdso32/vdso-fakesections.o \ $(obj)/vdso32/note.o \ $(obj)/vdso32/%.o $(call if_changed,vdso) @@ -169,14 +171,24 @@ quiet_cmd_vdso = VDSO $@ sh $(srctree)/$(src)/checkundef.sh '$(NM)' '$@' VDSO_LDFLAGS = -fPIC -shared $(call cc-ldoption, -Wl$(comma)--hash-style=sysv) \ - -Wl,-Bsymbolic $(LTO_CFLAGS) + $(call cc-ldoption, -Wl$(comma)--build-id) -Wl,-Bsymbolic $(LTO_CFLAGS) GCOV_PROFILE := n # -# Install the unstripped copies of vdso*.so. +# Install the unstripped copies of vdso*.so. If our toolchain supports +# build-id, install .build-id links as well. # quiet_cmd_vdso_install = INSTALL $(@:install_%=%) - cmd_vdso_install = cp $< $(MODLIB)/vdso/$(@:install_%=%) +define cmd_vdso_install + cp $< "$(MODLIB)/vdso/$(@:install_%=%)"; \ + if readelf -n $< |grep -q 'Build ID'; then \ + buildid=`readelf -n $< |grep 'Build ID' |sed -e 's/^.*Build ID: \(.*\)$$/\1/'`; \ + first=`echo $$buildid | cut -b-2`; \ + last=`echo $$buildid | cut -b3-`; \ + mkdir -p "$(MODLIB)/vdso/.build-id/$$first"; \ + ln -sf "../../$(@:install_%=%)" "$(MODLIB)/vdso/.build-id/$$first/$$last.debug"; \ + fi +endef vdso_img_insttargets := $(vdso_img_sodbg:%.dbg=install_%) diff --git a/arch/x86/vdso/vclock_gettime.c b/arch/x86/vdso/vclock_gettime.c index b2e4f493e5b0..9793322751e0 100644 --- a/arch/x86/vdso/vclock_gettime.c +++ b/arch/x86/vdso/vclock_gettime.c @@ -11,9 +11,6 @@ * Check with readelf after changing. */ -/* Disable profiling for userspace code: */ -#define DISABLE_BRANCH_PROFILING - #include <uapi/linux/time.h> #include <asm/vgtod.h> #include <asm/hpet.h> diff --git a/arch/x86/vdso/vdso-fakesections.c b/arch/x86/vdso/vdso-fakesections.c index cb8a8d72c24b..aa5fbfab20a5 100644 --- a/arch/x86/vdso/vdso-fakesections.c +++ b/arch/x86/vdso/vdso-fakesections.c @@ -2,31 +2,20 @@ * Copyright 2014 Andy Lutomirski * Subject to the GNU Public License, v.2 * - * Hack to keep broken Go programs working. - * - * The Go runtime had a couple of bugs: it would read the section table to try - * to figure out how many dynamic symbols there were (it shouldn't have looked - * at the section table at all) and, if there were no SHT_SYNDYM section table - * entry, it would use an uninitialized value for the number of symbols. As a - * workaround, we supply a minimal section table. vdso2c will adjust the - * in-memory image so that "vdso_fake_sections" becomes the section table. - * - * The bug was introduced by: - * https://code.google.com/p/go/source/detail?r=56ea40aac72b (2012-08-31) - * and is being addressed in the Go runtime in this issue: - * https://code.google.com/p/go/issues/detail?id=8197 + * String table for loadable section headers. See vdso2c.h for why + * this exists. */ -#ifndef __x86_64__ -#error This hack is specific to the 64-bit vDSO -#endif - -#include <linux/elf.h> - -extern const __visible struct elf64_shdr vdso_fake_sections[]; -const __visible struct elf64_shdr vdso_fake_sections[] = { - { - .sh_type = SHT_DYNSYM, - .sh_entsize = sizeof(Elf64_Sym), - } -}; +const char fake_shstrtab[] __attribute__((section(".fake_shstrtab"))) = + ".hash\0" + ".dynsym\0" + ".dynstr\0" + ".gnu.version\0" + ".gnu.version_d\0" + ".dynamic\0" + ".rodata\0" + ".fake_shstrtab\0" /* Yay, self-referential code. */ + ".note\0" + ".eh_frame_hdr\0" + ".eh_frame\0" + ".text"; diff --git a/arch/x86/vdso/vdso-layout.lds.S b/arch/x86/vdso/vdso-layout.lds.S index 2ec72f651ebf..9197544eea9a 100644 --- a/arch/x86/vdso/vdso-layout.lds.S +++ b/arch/x86/vdso/vdso-layout.lds.S @@ -6,6 +6,16 @@ * This script controls its layout. */ +#if defined(BUILD_VDSO64) +# define SHDR_SIZE 64 +#elif defined(BUILD_VDSO32) || defined(BUILD_VDSOX32) +# define SHDR_SIZE 40 +#else +# error unknown VDSO target +#endif + +#define NUM_FAKE_SHDRS 13 + SECTIONS { . = SIZEOF_HEADERS; @@ -18,36 +28,53 @@ SECTIONS .gnu.version_d : { *(.gnu.version_d) } .gnu.version_r : { *(.gnu.version_r) } + .dynamic : { *(.dynamic) } :text :dynamic + + .rodata : { + *(.rodata*) + *(.data*) + *(.sdata*) + *(.got.plt) *(.got) + *(.gnu.linkonce.d.*) + *(.bss*) + *(.dynbss*) + *(.gnu.linkonce.b.*) + + /* + * Ideally this would live in a C file, but that won't + * work cleanly for x32 until we start building the x32 + * C code using an x32 toolchain. + */ + VDSO_FAKE_SECTION_TABLE_START = .; + . = . + NUM_FAKE_SHDRS * SHDR_SIZE; + VDSO_FAKE_SECTION_TABLE_END = .; + } :text + + .fake_shstrtab : { *(.fake_shstrtab) } :text + + .note : { *(.note.*) } :text :note .eh_frame_hdr : { *(.eh_frame_hdr) } :text :eh_frame_hdr .eh_frame : { KEEP (*(.eh_frame)) } :text - .dynamic : { *(.dynamic) } :text :dynamic - - .rodata : { *(.rodata*) } :text - .data : { - *(.data*) - *(.sdata*) - *(.got.plt) *(.got) - *(.gnu.linkonce.d.*) - *(.bss*) - *(.dynbss*) - *(.gnu.linkonce.b.*) - } - - .altinstructions : { *(.altinstructions) } - .altinstr_replacement : { *(.altinstr_replacement) } /* - * Align the actual code well away from the non-instruction data. - * This is the best thing for the I-cache. + * Text is well-separated from actual data: there's plenty of + * stuff that isn't used at runtime in between. */ - . = ALIGN(0x100); .text : { *(.text*) } :text =0x90909090, /* + * At the end so that eu-elflint stays happy when vdso2c strips + * these. A better implementation would avoid allocating space + * for these. + */ + .altinstructions : { *(.altinstructions) } :text + .altinstr_replacement : { *(.altinstr_replacement) } :text + + /* * The remainder of the vDSO consists of special pages that are * shared between the kernel and userspace. It needs to be at the * end so that it doesn't overlap the mapping of the actual @@ -75,6 +102,7 @@ SECTIONS /DISCARD/ : { *(.discard) *(.discard.*) + *(__bug_table) } } diff --git a/arch/x86/vdso/vdso.lds.S b/arch/x86/vdso/vdso.lds.S index 75e3404c83b1..6807932643c2 100644 --- a/arch/x86/vdso/vdso.lds.S +++ b/arch/x86/vdso/vdso.lds.S @@ -6,6 +6,8 @@ * the DSO. */ +#define BUILD_VDSO64 + #include "vdso-layout.lds.S" /* diff --git a/arch/x86/vdso/vdso2c.c b/arch/x86/vdso/vdso2c.c index 7a6bf50f9165..238dbe82776e 100644 --- a/arch/x86/vdso/vdso2c.c +++ b/arch/x86/vdso/vdso2c.c @@ -23,6 +23,8 @@ enum { sym_vvar_page, sym_hpet_page, sym_end_mapping, + sym_VDSO_FAKE_SECTION_TABLE_START, + sym_VDSO_FAKE_SECTION_TABLE_END, }; const int special_pages[] = { @@ -30,15 +32,26 @@ const int special_pages[] = { sym_hpet_page, }; -char const * const required_syms[] = { - [sym_vvar_page] = "vvar_page", - [sym_hpet_page] = "hpet_page", - [sym_end_mapping] = "end_mapping", - "VDSO32_NOTE_MASK", - "VDSO32_SYSENTER_RETURN", - "__kernel_vsyscall", - "__kernel_sigreturn", - "__kernel_rt_sigreturn", +struct vdso_sym { + const char *name; + bool export; +}; + +struct vdso_sym required_syms[] = { + [sym_vvar_page] = {"vvar_page", true}, + [sym_hpet_page] = {"hpet_page", true}, + [sym_end_mapping] = {"end_mapping", true}, + [sym_VDSO_FAKE_SECTION_TABLE_START] = { + "VDSO_FAKE_SECTION_TABLE_START", false + }, + [sym_VDSO_FAKE_SECTION_TABLE_END] = { + "VDSO_FAKE_SECTION_TABLE_END", false + }, + {"VDSO32_NOTE_MASK", true}, + {"VDSO32_SYSENTER_RETURN", true}, + {"__kernel_vsyscall", true}, + {"__kernel_sigreturn", true}, + {"__kernel_rt_sigreturn", true}, }; __attribute__((format(printf, 1, 2))) __attribute__((noreturn)) @@ -83,37 +96,21 @@ extern void bad_put_le(void); #define NSYMS (sizeof(required_syms) / sizeof(required_syms[0])) -#define BITS 64 -#define GOFUNC go64 -#define Elf_Ehdr Elf64_Ehdr -#define Elf_Shdr Elf64_Shdr -#define Elf_Phdr Elf64_Phdr -#define Elf_Sym Elf64_Sym -#define Elf_Dyn Elf64_Dyn +#define BITSFUNC3(name, bits) name##bits +#define BITSFUNC2(name, bits) BITSFUNC3(name, bits) +#define BITSFUNC(name) BITSFUNC2(name, ELF_BITS) + +#define ELF_BITS_XFORM2(bits, x) Elf##bits##_##x +#define ELF_BITS_XFORM(bits, x) ELF_BITS_XFORM2(bits, x) +#define ELF(x) ELF_BITS_XFORM(ELF_BITS, x) + +#define ELF_BITS 64 #include "vdso2c.h" -#undef BITS -#undef GOFUNC -#undef Elf_Ehdr -#undef Elf_Shdr -#undef Elf_Phdr -#undef Elf_Sym -#undef Elf_Dyn - -#define BITS 32 -#define GOFUNC go32 -#define Elf_Ehdr Elf32_Ehdr -#define Elf_Shdr Elf32_Shdr -#define Elf_Phdr Elf32_Phdr -#define Elf_Sym Elf32_Sym -#define Elf_Dyn Elf32_Dyn +#undef ELF_BITS + +#define ELF_BITS 32 #include "vdso2c.h" -#undef BITS -#undef GOFUNC -#undef Elf_Ehdr -#undef Elf_Shdr -#undef Elf_Phdr -#undef Elf_Sym -#undef Elf_Dyn +#undef ELF_BITS static void go(void *addr, size_t len, FILE *outfile, const char *name) { diff --git a/arch/x86/vdso/vdso2c.h b/arch/x86/vdso/vdso2c.h index c6eefaf389b9..df95a2fdff73 100644 --- a/arch/x86/vdso/vdso2c.h +++ b/arch/x86/vdso/vdso2c.h @@ -4,23 +4,136 @@ * are built for 32-bit userspace. */ -static void GOFUNC(void *addr, size_t len, FILE *outfile, const char *name) +/* + * We're writing a section table for a few reasons: + * + * The Go runtime had a couple of bugs: it would read the section + * table to try to figure out how many dynamic symbols there were (it + * shouldn't have looked at the section table at all) and, if there + * were no SHT_SYNDYM section table entry, it would use an + * uninitialized value for the number of symbols. An empty DYNSYM + * table would work, but I see no reason not to write a valid one (and + * keep full performance for old Go programs). This hack is only + * needed on x86_64. + * + * The bug was introduced on 2012-08-31 by: + * https://code.google.com/p/go/source/detail?r=56ea40aac72b + * and was fixed on 2014-06-13 by: + * https://code.google.com/p/go/source/detail?r=fc1cd5e12595 + * + * Binutils has issues debugging the vDSO: it reads the section table to + * find SHT_NOTE; it won't look at PT_NOTE for the in-memory vDSO, which + * would break build-id if we removed the section table. Binutils + * also requires that shstrndx != 0. See: + * https://sourceware.org/bugzilla/show_bug.cgi?id=17064 + * + * elfutils might not look for PT_NOTE if there is a section table at + * all. I don't know whether this matters for any practical purpose. + * + * For simplicity, rather than hacking up a partial section table, we + * just write a mostly complete one. We omit non-dynamic symbols, + * though, since they're rather large. + * + * Once binutils gets fixed, we might be able to drop this for all but + * the 64-bit vdso, since build-id only works in kernel RPMs, and + * systems that update to new enough kernel RPMs will likely update + * binutils in sync. build-id has never worked for home-built kernel + * RPMs without manual symlinking, and I suspect that no one ever does + * that. + */ +struct BITSFUNC(fake_sections) +{ + ELF(Shdr) *table; + unsigned long table_offset; + int count, max_count; + + int in_shstrndx; + unsigned long shstr_offset; + const char *shstrtab; + size_t shstrtab_len; + + int out_shstrndx; +}; + +static unsigned int BITSFUNC(find_shname)(struct BITSFUNC(fake_sections) *out, + const char *name) +{ + const char *outname = out->shstrtab; + while (outname - out->shstrtab < out->shstrtab_len) { + if (!strcmp(name, outname)) + return (outname - out->shstrtab) + out->shstr_offset; + outname += strlen(outname) + 1; + } + + if (*name) + printf("Warning: could not find output name \"%s\"\n", name); + return out->shstr_offset + out->shstrtab_len - 1; /* Use a null. */ +} + +static void BITSFUNC(init_sections)(struct BITSFUNC(fake_sections) *out) +{ + if (!out->in_shstrndx) + fail("didn't find the fake shstrndx\n"); + + memset(out->table, 0, out->max_count * sizeof(ELF(Shdr))); + + if (out->max_count < 1) + fail("we need at least two fake output sections\n"); + + PUT_LE(&out->table[0].sh_type, SHT_NULL); + PUT_LE(&out->table[0].sh_name, BITSFUNC(find_shname)(out, "")); + + out->count = 1; +} + +static void BITSFUNC(copy_section)(struct BITSFUNC(fake_sections) *out, + int in_idx, const ELF(Shdr) *in, + const char *name) +{ + uint64_t flags = GET_LE(&in->sh_flags); + + bool copy = flags & SHF_ALLOC && + strcmp(name, ".altinstructions") && + strcmp(name, ".altinstr_replacement"); + + if (!copy) + return; + + if (out->count >= out->max_count) + fail("too many copied sections (max = %d)\n", out->max_count); + + if (in_idx == out->in_shstrndx) + out->out_shstrndx = out->count; + + out->table[out->count] = *in; + PUT_LE(&out->table[out->count].sh_name, + BITSFUNC(find_shname)(out, name)); + + /* elfutils requires that a strtab have the correct type. */ + if (!strcmp(name, ".fake_shstrtab")) + PUT_LE(&out->table[out->count].sh_type, SHT_STRTAB); + + out->count++; +} + +static void BITSFUNC(go)(void *addr, size_t len, + FILE *outfile, const char *name) { int found_load = 0; unsigned long load_size = -1; /* Work around bogus warning */ unsigned long data_size; - Elf_Ehdr *hdr = (Elf_Ehdr *)addr; + ELF(Ehdr) *hdr = (ELF(Ehdr) *)addr; int i; unsigned long j; - Elf_Shdr *symtab_hdr = NULL, *strtab_hdr, *secstrings_hdr, + ELF(Shdr) *symtab_hdr = NULL, *strtab_hdr, *secstrings_hdr, *alt_sec = NULL; - Elf_Dyn *dyn = 0, *dyn_end = 0; + ELF(Dyn) *dyn = 0, *dyn_end = 0; const char *secstrings; uint64_t syms[NSYMS] = {}; - uint64_t fake_sections_value = 0, fake_sections_size = 0; + struct BITSFUNC(fake_sections) fake_sections = {}; - Elf_Phdr *pt = (Elf_Phdr *)(addr + GET_LE(&hdr->e_phoff)); + ELF(Phdr) *pt = (ELF(Phdr) *)(addr + GET_LE(&hdr->e_phoff)); /* Walk the segment table. */ for (i = 0; i < GET_LE(&hdr->e_phnum); i++) { @@ -51,7 +164,7 @@ static void GOFUNC(void *addr, size_t len, FILE *outfile, const char *name) for (i = 0; dyn + i < dyn_end && GET_LE(&dyn[i].d_tag) != DT_NULL; i++) { typeof(dyn[i].d_tag) tag = GET_LE(&dyn[i].d_tag); - if (tag == DT_REL || tag == DT_RELSZ || + if (tag == DT_REL || tag == DT_RELSZ || tag == DT_RELA || tag == DT_RELENT || tag == DT_TEXTREL) fail("vdso image contains dynamic relocations\n"); } @@ -61,7 +174,7 @@ static void GOFUNC(void *addr, size_t len, FILE *outfile, const char *name) GET_LE(&hdr->e_shentsize)*GET_LE(&hdr->e_shstrndx); secstrings = addr + GET_LE(&secstrings_hdr->sh_offset); for (i = 0; i < GET_LE(&hdr->e_shnum); i++) { - Elf_Shdr *sh = addr + GET_LE(&hdr->e_shoff) + + ELF(Shdr) *sh = addr + GET_LE(&hdr->e_shoff) + GET_LE(&hdr->e_shentsize) * i; if (GET_LE(&sh->sh_type) == SHT_SYMTAB) symtab_hdr = sh; @@ -82,29 +195,63 @@ static void GOFUNC(void *addr, size_t len, FILE *outfile, const char *name) i < GET_LE(&symtab_hdr->sh_size) / GET_LE(&symtab_hdr->sh_entsize); i++) { int k; - Elf_Sym *sym = addr + GET_LE(&symtab_hdr->sh_offset) + + ELF(Sym) *sym = addr + GET_LE(&symtab_hdr->sh_offset) + GET_LE(&symtab_hdr->sh_entsize) * i; const char *name = addr + GET_LE(&strtab_hdr->sh_offset) + GET_LE(&sym->st_name); for (k = 0; k < NSYMS; k++) { - if (!strcmp(name, required_syms[k])) { + if (!strcmp(name, required_syms[k].name)) { if (syms[k]) { fail("duplicate symbol %s\n", - required_syms[k]); + required_syms[k].name); } syms[k] = GET_LE(&sym->st_value); } } - if (!strcmp(name, "vdso_fake_sections")) { - if (fake_sections_value) - fail("duplicate vdso_fake_sections\n"); - fake_sections_value = GET_LE(&sym->st_value); - fake_sections_size = GET_LE(&sym->st_size); + if (!strcmp(name, "fake_shstrtab")) { + ELF(Shdr) *sh; + + fake_sections.in_shstrndx = GET_LE(&sym->st_shndx); + fake_sections.shstrtab = addr + GET_LE(&sym->st_value); + fake_sections.shstrtab_len = GET_LE(&sym->st_size); + sh = addr + GET_LE(&hdr->e_shoff) + + GET_LE(&hdr->e_shentsize) * + fake_sections.in_shstrndx; + fake_sections.shstr_offset = GET_LE(&sym->st_value) - + GET_LE(&sh->sh_addr); } } + /* Build the output section table. */ + if (!syms[sym_VDSO_FAKE_SECTION_TABLE_START] || + !syms[sym_VDSO_FAKE_SECTION_TABLE_END]) + fail("couldn't find fake section table\n"); + if ((syms[sym_VDSO_FAKE_SECTION_TABLE_END] - + syms[sym_VDSO_FAKE_SECTION_TABLE_START]) % sizeof(ELF(Shdr))) + fail("fake section table size isn't a multiple of sizeof(Shdr)\n"); + fake_sections.table = addr + syms[sym_VDSO_FAKE_SECTION_TABLE_START]; + fake_sections.table_offset = syms[sym_VDSO_FAKE_SECTION_TABLE_START]; + fake_sections.max_count = (syms[sym_VDSO_FAKE_SECTION_TABLE_END] - + syms[sym_VDSO_FAKE_SECTION_TABLE_START]) / + sizeof(ELF(Shdr)); + + BITSFUNC(init_sections)(&fake_sections); + for (i = 0; i < GET_LE(&hdr->e_shnum); i++) { + ELF(Shdr) *sh = addr + GET_LE(&hdr->e_shoff) + + GET_LE(&hdr->e_shentsize) * i; + BITSFUNC(copy_section)(&fake_sections, i, sh, + secstrings + GET_LE(&sh->sh_name)); + } + if (!fake_sections.out_shstrndx) + fail("didn't generate shstrndx?!?\n"); + + PUT_LE(&hdr->e_shoff, fake_sections.table_offset); + PUT_LE(&hdr->e_shentsize, sizeof(ELF(Shdr))); + PUT_LE(&hdr->e_shnum, fake_sections.count); + PUT_LE(&hdr->e_shstrndx, fake_sections.out_shstrndx); + /* Validate mapping addresses. */ for (i = 0; i < sizeof(special_pages) / sizeof(special_pages[0]); i++) { if (!syms[i]) @@ -112,25 +259,17 @@ static void GOFUNC(void *addr, size_t len, FILE *outfile, const char *name) if (syms[i] % 4096) fail("%s must be a multiple of 4096\n", - required_syms[i]); + required_syms[i].name); if (syms[i] < data_size) fail("%s must be after the text mapping\n", - required_syms[i]); + required_syms[i].name); if (syms[sym_end_mapping] < syms[i] + 4096) - fail("%s overruns end_mapping\n", required_syms[i]); + fail("%s overruns end_mapping\n", + required_syms[i].name); } if (syms[sym_end_mapping] % 4096) fail("end_mapping must be a multiple of 4096\n"); - /* Remove sections or use fakes */ - if (fake_sections_size % sizeof(Elf_Shdr)) - fail("vdso_fake_sections size is not a multiple of %ld\n", - (long)sizeof(Elf_Shdr)); - PUT_LE(&hdr->e_shoff, fake_sections_value); - PUT_LE(&hdr->e_shentsize, fake_sections_value ? sizeof(Elf_Shdr) : 0); - PUT_LE(&hdr->e_shnum, fake_sections_size / sizeof(Elf_Shdr)); - PUT_LE(&hdr->e_shstrndx, SHN_UNDEF); - if (!name) { fwrite(addr, load_size, 1, outfile); return; @@ -168,9 +307,9 @@ static void GOFUNC(void *addr, size_t len, FILE *outfile, const char *name) (unsigned long)GET_LE(&alt_sec->sh_size)); } for (i = 0; i < NSYMS; i++) { - if (syms[i]) + if (required_syms[i].export && syms[i]) fprintf(outfile, "\t.sym_%s = 0x%" PRIx64 ",\n", - required_syms[i], syms[i]); + required_syms[i].name, syms[i]); } fprintf(outfile, "};\n"); } diff --git a/arch/x86/vdso/vdso32/vdso-fakesections.c b/arch/x86/vdso/vdso32/vdso-fakesections.c new file mode 100644 index 000000000000..541468e25265 --- /dev/null +++ b/arch/x86/vdso/vdso32/vdso-fakesections.c @@ -0,0 +1 @@ +#include "../vdso-fakesections.c" diff --git a/arch/x86/vdso/vdsox32.lds.S b/arch/x86/vdso/vdsox32.lds.S index 46b991b578a8..697c11ece90c 100644 --- a/arch/x86/vdso/vdsox32.lds.S +++ b/arch/x86/vdso/vdsox32.lds.S @@ -6,6 +6,8 @@ * the DSO. */ +#define BUILD_VDSOX32 + #include "vdso-layout.lds.S" /* diff --git a/block/bio.c b/block/bio.c index 8c2e55e39a1b..0ec61c9e536c 100644 --- a/block/bio.c +++ b/block/bio.c @@ -746,6 +746,14 @@ static int __bio_add_page(struct request_queue *q, struct bio *bio, struct page goto done; } + + /* + * If the queue doesn't support SG gaps and adding this + * offset would create a gap, disallow it. + */ + if (q->queue_flags & (1 << QUEUE_FLAG_SG_GAPS) && + bvec_gap_to_prev(prev, offset)) + return 0; } if (bio->bi_vcnt >= bio->bi_max_vecs) diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c index 069bc202ffe3..b9f4cc494ece 100644 --- a/block/blk-cgroup.c +++ b/block/blk-cgroup.c @@ -80,7 +80,7 @@ static struct blkcg_gq *blkg_alloc(struct blkcg *blkcg, struct request_queue *q, blkg->q = q; INIT_LIST_HEAD(&blkg->q_node); blkg->blkcg = blkcg; - blkg->refcnt = 1; + atomic_set(&blkg->refcnt, 1); /* root blkg uses @q->root_rl, init rl only for !root blkgs */ if (blkcg != &blkcg_root) { @@ -399,11 +399,8 @@ void __blkg_release_rcu(struct rcu_head *rcu_head) /* release the blkcg and parent blkg refs this blkg has been holding */ css_put(&blkg->blkcg->css); - if (blkg->parent) { - spin_lock_irq(blkg->q->queue_lock); + if (blkg->parent) blkg_put(blkg->parent); - spin_unlock_irq(blkg->q->queue_lock); - } blkg_free(blkg); } @@ -1093,7 +1090,7 @@ EXPORT_SYMBOL_GPL(blkcg_deactivate_policy); * Register @pol with blkcg core. Might sleep and @pol may be modified on * successful registration. Returns 0 on success and -errno on failure. */ -int __init blkcg_policy_register(struct blkcg_policy *pol) +int blkcg_policy_register(struct blkcg_policy *pol) { int i, ret; diff --git a/block/blk-cgroup.h b/block/blk-cgroup.h index cbb7f943f78a..d3fd7aa3d2a3 100644 --- a/block/blk-cgroup.h +++ b/block/blk-cgroup.h @@ -18,6 +18,7 @@ #include <linux/seq_file.h> #include <linux/radix-tree.h> #include <linux/blkdev.h> +#include <linux/atomic.h> /* Max limits for throttle policy */ #define THROTL_IOPS_MAX UINT_MAX @@ -104,7 +105,7 @@ struct blkcg_gq { struct request_list rl; /* reference count */ - int refcnt; + atomic_t refcnt; /* is this blkg online? protected by both blkcg and q locks */ bool online; @@ -145,7 +146,7 @@ void blkcg_drain_queue(struct request_queue *q); void blkcg_exit_queue(struct request_queue *q); /* Blkio controller policy registration */ -int __init blkcg_policy_register(struct blkcg_policy *pol); +int blkcg_policy_register(struct blkcg_policy *pol); void blkcg_policy_unregister(struct blkcg_policy *pol); int blkcg_activate_policy(struct request_queue *q, const struct blkcg_policy *pol); @@ -257,13 +258,12 @@ static inline int blkg_path(struct blkcg_gq *blkg, char *buf, int buflen) * blkg_get - get a blkg reference * @blkg: blkg to get * - * The caller should be holding queue_lock and an existing reference. + * The caller should be holding an existing reference. */ static inline void blkg_get(struct blkcg_gq *blkg) { - lockdep_assert_held(blkg->q->queue_lock); - WARN_ON_ONCE(!blkg->refcnt); - blkg->refcnt++; + WARN_ON_ONCE(atomic_read(&blkg->refcnt) <= 0); + atomic_inc(&blkg->refcnt); } void __blkg_release_rcu(struct rcu_head *rcu); @@ -271,14 +271,11 @@ void __blkg_release_rcu(struct rcu_head *rcu); /** * blkg_put - put a blkg reference * @blkg: blkg to put - * - * The caller should be holding queue_lock. */ static inline void blkg_put(struct blkcg_gq *blkg) { - lockdep_assert_held(blkg->q->queue_lock); - WARN_ON_ONCE(blkg->refcnt <= 0); - if (!--blkg->refcnt) + WARN_ON_ONCE(atomic_read(&blkg->refcnt) <= 0); + if (atomic_dec_and_test(&blkg->refcnt)) call_rcu(&blkg->rcu_head, __blkg_release_rcu); } @@ -580,7 +577,7 @@ static inline struct blkcg_gq *blkg_lookup(struct blkcg *blkcg, void *key) { ret static inline int blkcg_init_queue(struct request_queue *q) { return 0; } static inline void blkcg_drain_queue(struct request_queue *q) { } static inline void blkcg_exit_queue(struct request_queue *q) { } -static inline int __init blkcg_policy_register(struct blkcg_policy *pol) { return 0; } +static inline int blkcg_policy_register(struct blkcg_policy *pol) { return 0; } static inline void blkcg_policy_unregister(struct blkcg_policy *pol) { } static inline int blkcg_activate_policy(struct request_queue *q, const struct blkcg_policy *pol) { return 0; } diff --git a/block/blk-merge.c b/block/blk-merge.c index b3bf0df0f4c2..54535831f1e1 100644 --- a/block/blk-merge.c +++ b/block/blk-merge.c @@ -568,6 +568,8 @@ int blk_attempt_req_merge(struct request_queue *q, struct request *rq, bool blk_rq_merge_ok(struct request *rq, struct bio *bio) { + struct request_queue *q = rq->q; + if (!rq_mergeable(rq) || !bio_mergeable(bio)) return false; @@ -591,6 +593,14 @@ bool blk_rq_merge_ok(struct request *rq, struct bio *bio) !blk_write_same_mergeable(rq->bio, bio)) return false; + if (q->queue_flags & (1 << QUEUE_FLAG_SG_GAPS)) { + struct bio_vec *bprev; + + bprev = &rq->biotail->bi_io_vec[bio->bi_vcnt - 1]; + if (bvec_gap_to_prev(bprev, bio->bi_io_vec[0].bv_offset)) + return false; + } + return true; } diff --git a/block/blk-mq.c b/block/blk-mq.c index 0ef2dc7f01bf..ad69ef657e85 100644 --- a/block/blk-mq.c +++ b/block/blk-mq.c @@ -878,7 +878,7 @@ void blk_mq_start_hw_queue(struct blk_mq_hw_ctx *hctx) clear_bit(BLK_MQ_S_STOPPED, &hctx->state); preempt_disable(); - __blk_mq_run_hw_queue(hctx); + blk_mq_run_hw_queue(hctx, false); preempt_enable(); } EXPORT_SYMBOL(blk_mq_start_hw_queue); diff --git a/block/elevator.c b/block/elevator.c index 34bded18910e..24c28b659bb3 100644 --- a/block/elevator.c +++ b/block/elevator.c @@ -825,7 +825,7 @@ void elv_unregister_queue(struct request_queue *q) } EXPORT_SYMBOL(elv_unregister_queue); -int __init elv_register(struct elevator_type *e) +int elv_register(struct elevator_type *e) { char *def = ""; diff --git a/drivers/base/dma-contiguous.c b/drivers/base/dma-contiguous.c index 83969f8c5727..6467c919c509 100644 --- a/drivers/base/dma-contiguous.c +++ b/drivers/base/dma-contiguous.c @@ -176,14 +176,24 @@ static int __init cma_activate_area(struct cma *cma) base_pfn = pfn; for (j = pageblock_nr_pages; j; --j, pfn++) { WARN_ON_ONCE(!pfn_valid(pfn)); + /* + * alloc_contig_range requires the pfn range + * specified to be in the same zone. Make this + * simple by forcing the entire CMA resv range + * to be in the same zone. + */ if (page_zone(pfn_to_page(pfn)) != zone) - return -EINVAL; + goto err; } init_cma_reserved_pageblock(pfn_to_page(base_pfn)); } while (--i); mutex_init(&cma->lock); return 0; + +err: + kfree(cma->bitmap); + return -EINVAL; } static struct cma cma_areas[MAX_CMA_AREAS]; diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c index b6c8aaf4931b..5b17ec88ea05 100644 --- a/drivers/block/drbd/drbd_receiver.c +++ b/drivers/block/drbd/drbd_receiver.c @@ -1337,8 +1337,11 @@ int drbd_submit_peer_request(struct drbd_device *device, return 0; } + /* Discards don't have any payload. + * But the scsi layer still expects a bio_vec it can use internally, + * see sd_setup_discard_cmnd() and blk_add_request_payload(). */ if (peer_req->flags & EE_IS_TRIM) - nr_pages = 0; /* discards don't have any payload. */ + nr_pages = 1; /* In most cases, we will only need one bio. But in case the lower * level restrictions happen to be different at this offset on this diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c index 677db049f55a..56d46ffb08e1 100644 --- a/drivers/block/floppy.c +++ b/drivers/block/floppy.c @@ -3777,7 +3777,7 @@ static void floppy_rb0_cb(struct bio *bio, int err) int drive = cbdata->drive; if (err) { - pr_info("floppy: error %d while reading block 0", err); + pr_info("floppy: error %d while reading block 0\n", err); set_bit(FD_OPEN_SHOULD_FAIL_BIT, &UDRS->flags); } complete(&cbdata->complete); diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c index bbeb404b3a07..b2c98c1bc037 100644 --- a/drivers/block/rbd.c +++ b/drivers/block/rbd.c @@ -1431,6 +1431,14 @@ static bool obj_request_exists_test(struct rbd_obj_request *obj_request) return test_bit(OBJ_REQ_EXISTS, &obj_request->flags) != 0; } +static bool obj_request_overlaps_parent(struct rbd_obj_request *obj_request) +{ + struct rbd_device *rbd_dev = obj_request->img_request->rbd_dev; + + return obj_request->img_offset < + round_up(rbd_dev->parent_overlap, rbd_obj_bytes(&rbd_dev->header)); +} + static void rbd_obj_request_get(struct rbd_obj_request *obj_request) { dout("%s: obj %p (was %d)\n", __func__, obj_request, @@ -2748,7 +2756,7 @@ static int rbd_img_obj_request_submit(struct rbd_obj_request *obj_request) */ if (!img_request_write_test(img_request) || !img_request_layered_test(img_request) || - rbd_dev->parent_overlap <= obj_request->img_offset || + !obj_request_overlaps_parent(obj_request) || ((known = obj_request_known_test(obj_request)) && obj_request_exists_test(obj_request))) { diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c index 48eccb350180..089e72cd37be 100644 --- a/drivers/block/zram/zram_drv.c +++ b/drivers/block/zram/zram_drv.c @@ -622,8 +622,10 @@ static void zram_reset_device(struct zram *zram, bool reset_capacity) memset(&zram->stats, 0, sizeof(zram->stats)); zram->disksize = 0; - if (reset_capacity) + if (reset_capacity) { set_capacity(zram->disk, 0); + revalidate_disk(zram->disk); + } up_write(&zram->init_lock); } @@ -664,6 +666,7 @@ static ssize_t disksize_store(struct device *dev, zram->comp = comp; zram->disksize = disksize; set_capacity(zram->disk, zram->disksize >> SECTOR_SHIFT); + revalidate_disk(zram->disk); up_write(&zram->init_lock); return len; diff --git a/drivers/clocksource/exynos_mct.c b/drivers/clocksource/exynos_mct.c index 8d6420013a04..f71d55f5e6e5 100644 --- a/drivers/clocksource/exynos_mct.c +++ b/drivers/clocksource/exynos_mct.c @@ -153,13 +153,10 @@ static void exynos4_mct_write(unsigned int value, unsigned long offset) } /* Clocksource handling */ -static void exynos4_mct_frc_start(u32 hi, u32 lo) +static void exynos4_mct_frc_start(void) { u32 reg; - exynos4_mct_write(lo, EXYNOS4_MCT_G_CNT_L); - exynos4_mct_write(hi, EXYNOS4_MCT_G_CNT_U); - reg = __raw_readl(reg_base + EXYNOS4_MCT_G_TCON); reg |= MCT_G_TCON_START; exynos4_mct_write(reg, EXYNOS4_MCT_G_TCON); @@ -181,7 +178,7 @@ static cycle_t exynos4_frc_read(struct clocksource *cs) static void exynos4_frc_resume(struct clocksource *cs) { - exynos4_mct_frc_start(0, 0); + exynos4_mct_frc_start(); } struct clocksource mct_frc = { @@ -200,7 +197,7 @@ static u64 notrace exynos4_read_sched_clock(void) static void __init exynos4_clocksource_init(void) { - exynos4_mct_frc_start(0, 0); + exynos4_mct_frc_start(); if (clocksource_register_hz(&mct_frc, clk_rate)) panic("%s: can't register clocksource\n", mct_frc.name); diff --git a/drivers/firmware/efi/efi-pstore.c b/drivers/firmware/efi/efi-pstore.c index 4b9dc836dcf9..e992abc5ef26 100644 --- a/drivers/firmware/efi/efi-pstore.c +++ b/drivers/firmware/efi/efi-pstore.c @@ -40,7 +40,7 @@ struct pstore_read_data { static inline u64 generic_id(unsigned long timestamp, unsigned int part, int count) { - return (timestamp * 100 + part) * 1000 + count; + return ((u64) timestamp * 100 + part) * 1000 + count; } static int efi_pstore_read_func(struct efivar_entry *entry, void *data) diff --git a/drivers/firmware/efi/efi.c b/drivers/firmware/efi/efi.c index cd36deb619fa..eff1a2f22f09 100644 --- a/drivers/firmware/efi/efi.c +++ b/drivers/firmware/efi/efi.c @@ -353,10 +353,10 @@ static int __init fdt_find_uefi_params(unsigned long node, const char *uname, int depth, void *data) { struct param_info *info = data; - void *prop, *dest; - unsigned long len; + const void *prop; + void *dest; u64 val; - int i; + int i, len; if (depth != 1 || (strcmp(uname, "chosen") != 0 && strcmp(uname, "chosen@0") != 0)) diff --git a/drivers/firmware/efi/fdt.c b/drivers/firmware/efi/fdt.c index 5c6a8e8a9580..82d774161cc9 100644 --- a/drivers/firmware/efi/fdt.c +++ b/drivers/firmware/efi/fdt.c @@ -63,7 +63,7 @@ static efi_status_t update_fdt(efi_system_table_t *sys_table, void *orig_fdt, */ prev = 0; for (;;) { - const char *type, *name; + const char *type; int len; node = fdt_next_node(fdt, prev, NULL); diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c index 03711d00aaae..8218078b6133 100644 --- a/drivers/gpu/drm/drm_drv.c +++ b/drivers/gpu/drm/drm_drv.c @@ -419,8 +419,9 @@ long drm_ioctl(struct file *filp, retcode = -EFAULT; goto err_i1; } - } else + } else if (cmd & IOC_OUT) { memset(kdata, 0, usize); + } if (ioctl->flags & DRM_UNLOCKED) retcode = func(dev, kdata, file_priv); diff --git a/drivers/gpu/drm/exynos/exynos_drm_dpi.c b/drivers/gpu/drm/exynos/exynos_drm_dpi.c index 482127f633c5..9e530f205ad2 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_dpi.c +++ b/drivers/gpu/drm/exynos/exynos_drm_dpi.c @@ -40,7 +40,7 @@ exynos_dpi_detect(struct drm_connector *connector, bool force) { struct exynos_dpi *ctx = connector_to_dpi(connector); - if (!ctx->panel->connector) + if (ctx->panel && !ctx->panel->connector) drm_panel_attach(ctx->panel, &ctx->connector); return connector_status_connected; diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.c b/drivers/gpu/drm/exynos/exynos_drm_drv.c index d91f27777537..ab7d182063c3 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_drv.c +++ b/drivers/gpu/drm/exynos/exynos_drm_drv.c @@ -765,24 +765,24 @@ static int exynos_drm_init(void) return 0; -err_unregister_pd: - platform_device_unregister(exynos_drm_pdev); - err_remove_vidi: #ifdef CONFIG_DRM_EXYNOS_VIDI exynos_drm_remove_vidi(); + +err_unregister_pd: #endif + platform_device_unregister(exynos_drm_pdev); return ret; } static void exynos_drm_exit(void) { + platform_driver_unregister(&exynos_drm_platform_driver); #ifdef CONFIG_DRM_EXYNOS_VIDI exynos_drm_remove_vidi(); #endif platform_device_unregister(exynos_drm_pdev); - platform_driver_unregister(&exynos_drm_platform_driver); } module_init(exynos_drm_init); diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.h b/drivers/gpu/drm/exynos/exynos_drm_drv.h index 36535f398848..06cde4506278 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_drv.h +++ b/drivers/gpu/drm/exynos/exynos_drm_drv.h @@ -343,7 +343,7 @@ struct exynos_drm_display * exynos_dpi_probe(struct device *dev); int exynos_dpi_remove(struct device *dev); #else static inline struct exynos_drm_display * -exynos_dpi_probe(struct device *dev) { return 0; } +exynos_dpi_probe(struct device *dev) { return NULL; } static inline int exynos_dpi_remove(struct device *dev) { return 0; } #endif diff --git a/drivers/gpu/drm/exynos/exynos_drm_fimd.c b/drivers/gpu/drm/exynos/exynos_drm_fimd.c index bb45ab2e7384..33161ad38201 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_fimd.c +++ b/drivers/gpu/drm/exynos/exynos_drm_fimd.c @@ -741,6 +741,8 @@ static void fimd_apply(struct exynos_drm_manager *mgr) win_data = &ctx->win_data[i]; if (win_data->enabled) fimd_win_commit(mgr, i); + else + fimd_win_disable(mgr, i); } fimd_commit(mgr); diff --git a/drivers/gpu/drm/exynos/exynos_hdmi.c b/drivers/gpu/drm/exynos/exynos_hdmi.c index c104d0c9b385..aa259b0a873a 100644 --- a/drivers/gpu/drm/exynos/exynos_hdmi.c +++ b/drivers/gpu/drm/exynos/exynos_hdmi.c @@ -2090,6 +2090,11 @@ out: static void hdmi_dpms(struct exynos_drm_display *display, int mode) { + struct hdmi_context *hdata = display->ctx; + struct drm_encoder *encoder = hdata->encoder; + struct drm_crtc *crtc = encoder->crtc; + struct drm_crtc_helper_funcs *funcs = NULL; + DRM_DEBUG_KMS("mode %d\n", mode); switch (mode) { @@ -2099,6 +2104,20 @@ static void hdmi_dpms(struct exynos_drm_display *display, int mode) case DRM_MODE_DPMS_STANDBY: case DRM_MODE_DPMS_SUSPEND: case DRM_MODE_DPMS_OFF: + /* + * The SFRs of VP and Mixer are updated by Vertical Sync of + * Timing generator which is a part of HDMI so the sequence + * to disable TV Subsystem should be as following, + * VP -> Mixer -> HDMI + * + * Below codes will try to disable Mixer and VP(if used) + * prior to disabling HDMI. + */ + if (crtc) + funcs = crtc->helper_private; + if (funcs && funcs->dpms) + (*funcs->dpms)(crtc, mode); + hdmi_poweroff(display); break; default: diff --git a/drivers/gpu/drm/exynos/exynos_mixer.c b/drivers/gpu/drm/exynos/exynos_mixer.c index 4c5aed7e54c8..7529946d0a74 100644 --- a/drivers/gpu/drm/exynos/exynos_mixer.c +++ b/drivers/gpu/drm/exynos/exynos_mixer.c @@ -377,6 +377,20 @@ static void mixer_run(struct mixer_context *ctx) mixer_regs_dump(ctx); } +static void mixer_stop(struct mixer_context *ctx) +{ + struct mixer_resources *res = &ctx->mixer_res; + int timeout = 20; + + mixer_reg_writemask(res, MXR_STATUS, 0, MXR_STATUS_REG_RUN); + + while (!(mixer_reg_read(res, MXR_STATUS) & MXR_STATUS_REG_IDLE) && + --timeout) + usleep_range(10000, 12000); + + mixer_regs_dump(ctx); +} + static void vp_video_buffer(struct mixer_context *ctx, int win) { struct mixer_resources *res = &ctx->mixer_res; @@ -497,13 +511,8 @@ static void vp_video_buffer(struct mixer_context *ctx, int win) static void mixer_layer_update(struct mixer_context *ctx) { struct mixer_resources *res = &ctx->mixer_res; - u32 val; - - val = mixer_reg_read(res, MXR_CFG); - /* allow one update per vsync only */ - if (!(val & MXR_CFG_LAYER_UPDATE_COUNT_MASK)) - mixer_reg_writemask(res, MXR_CFG, ~0, MXR_CFG_LAYER_UPDATE); + mixer_reg_writemask(res, MXR_CFG, ~0, MXR_CFG_LAYER_UPDATE); } static void mixer_graph_buffer(struct mixer_context *ctx, int win) @@ -1010,6 +1019,8 @@ static void mixer_wait_for_vblank(struct exynos_drm_manager *mgr) } mutex_unlock(&mixer_ctx->mixer_mutex); + drm_vblank_get(mgr->crtc->dev, mixer_ctx->pipe); + atomic_set(&mixer_ctx->wait_vsync_event, 1); /* @@ -1020,6 +1031,8 @@ static void mixer_wait_for_vblank(struct exynos_drm_manager *mgr) !atomic_read(&mixer_ctx->wait_vsync_event), HZ/20)) DRM_DEBUG_KMS("vblank wait timed out.\n"); + + drm_vblank_put(mgr->crtc->dev, mixer_ctx->pipe); } static void mixer_window_suspend(struct exynos_drm_manager *mgr) @@ -1061,7 +1074,7 @@ static void mixer_poweron(struct exynos_drm_manager *mgr) mutex_unlock(&ctx->mixer_mutex); return; } - ctx->powered = true; + mutex_unlock(&ctx->mixer_mutex); pm_runtime_get_sync(ctx->dev); @@ -1072,6 +1085,12 @@ static void mixer_poweron(struct exynos_drm_manager *mgr) clk_prepare_enable(res->sclk_mixer); } + mutex_lock(&ctx->mixer_mutex); + ctx->powered = true; + mutex_unlock(&ctx->mixer_mutex); + + mixer_reg_writemask(res, MXR_STATUS, ~0, MXR_STATUS_SOFT_RESET); + mixer_reg_write(res, MXR_INT_EN, ctx->int_en); mixer_win_reset(ctx); @@ -1084,14 +1103,21 @@ static void mixer_poweroff(struct exynos_drm_manager *mgr) struct mixer_resources *res = &ctx->mixer_res; mutex_lock(&ctx->mixer_mutex); - if (!ctx->powered) - goto out; + if (!ctx->powered) { + mutex_unlock(&ctx->mixer_mutex); + return; + } mutex_unlock(&ctx->mixer_mutex); + mixer_stop(ctx); mixer_window_suspend(mgr); ctx->int_en = mixer_reg_read(res, MXR_INT_EN); + mutex_lock(&ctx->mixer_mutex); + ctx->powered = false; + mutex_unlock(&ctx->mixer_mutex); + clk_disable_unprepare(res->mixer); if (ctx->vp_enabled) { clk_disable_unprepare(res->vp); @@ -1099,12 +1125,6 @@ static void mixer_poweroff(struct exynos_drm_manager *mgr) } pm_runtime_put_sync(ctx->dev); - - mutex_lock(&ctx->mixer_mutex); - ctx->powered = false; - -out: - mutex_unlock(&ctx->mixer_mutex); } static void mixer_dpms(struct exynos_drm_manager *mgr, int mode) diff --git a/drivers/gpu/drm/exynos/regs-mixer.h b/drivers/gpu/drm/exynos/regs-mixer.h index 4537026bc385..5f32e1a29411 100644 --- a/drivers/gpu/drm/exynos/regs-mixer.h +++ b/drivers/gpu/drm/exynos/regs-mixer.h @@ -78,6 +78,7 @@ #define MXR_STATUS_BIG_ENDIAN (1 << 3) #define MXR_STATUS_ENDIAN_MASK (1 << 3) #define MXR_STATUS_SYNC_ENABLE (1 << 2) +#define MXR_STATUS_REG_IDLE (1 << 1) #define MXR_STATUS_REG_RUN (1 << 0) /* bits for MXR_CFG */ diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c index 601caa88c092..b8c689202c40 100644 --- a/drivers/gpu/drm/i915/i915_debugfs.c +++ b/drivers/gpu/drm/i915/i915_debugfs.c @@ -446,7 +446,9 @@ static int i915_gem_object_info(struct seq_file *m, void* data) memset(&stats, 0, sizeof(stats)); stats.file_priv = file->driver_priv; + spin_lock(&file->table_lock); idr_for_each(&file->object_idr, per_file_stats, &stats); + spin_unlock(&file->table_lock); /* * Although we have a valid reference on file->pid, that does * not guarantee that the task_struct who called get_pid() is diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 49414d30e8d4..a47fbf60b781 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -977,6 +977,8 @@ struct i915_power_well { bool always_on; /* power well enable/disable usage count */ int count; + /* cached hw enabled state */ + bool hw_enabled; unsigned long domains; unsigned long data; const struct i915_power_well_ops *ops; diff --git a/drivers/gpu/drm/i915/i915_gem_context.c b/drivers/gpu/drm/i915/i915_gem_context.c index 3ffe308d5893..a5ddf3bce9c3 100644 --- a/drivers/gpu/drm/i915/i915_gem_context.c +++ b/drivers/gpu/drm/i915/i915_gem_context.c @@ -598,6 +598,7 @@ static int do_switch(struct intel_engine_cs *ring, struct intel_context *from = ring->last_context; struct i915_hw_ppgtt *ppgtt = ctx_to_ppgtt(to); u32 hw_flags = 0; + bool uninitialized = false; int ret, i; if (from != NULL && ring == &dev_priv->ring[RCS]) { @@ -696,19 +697,20 @@ static int do_switch(struct intel_engine_cs *ring, i915_gem_context_unreference(from); } + uninitialized = !to->is_initialized && from == NULL; + to->is_initialized = true; + done: i915_gem_context_reference(to); ring->last_context = to; to->last_ring = ring; - if (ring->id == RCS && !to->is_initialized && from == NULL) { + if (uninitialized) { ret = i915_gem_render_state_init(ring); if (ret) DRM_ERROR("init render state: %d\n", ret); } - to->is_initialized = true; - return 0; unpin_out: diff --git a/drivers/gpu/drm/i915/intel_bios.c b/drivers/gpu/drm/i915/intel_bios.c index 1ee98f121a00..827498e081df 100644 --- a/drivers/gpu/drm/i915/intel_bios.c +++ b/drivers/gpu/drm/i915/intel_bios.c @@ -315,9 +315,6 @@ parse_lfp_backlight(struct drm_i915_private *dev_priv, struct bdb_header *bdb) const struct bdb_lfp_backlight_data *backlight_data; const struct bdb_lfp_backlight_data_entry *entry; - /* Err to enabling backlight if no backlight block. */ - dev_priv->vbt.backlight.present = true; - backlight_data = find_section(bdb, BDB_LVDS_BACKLIGHT); if (!backlight_data) return; @@ -1088,6 +1085,9 @@ init_vbt_defaults(struct drm_i915_private *dev_priv) dev_priv->vbt.crt_ddc_pin = GMBUS_PORT_VGADDC; + /* Default to having backlight */ + dev_priv->vbt.backlight.present = true; + /* LFP panel data */ dev_priv->vbt.lvds_dither = 1; dev_priv->vbt.lvds_vbt = 0; diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index efd3cf50cb0f..5f285fba4e41 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -4564,7 +4564,10 @@ static void valleyview_crtc_enable(struct drm_crtc *crtc) if (intel_crtc->active) return; - vlv_prepare_pll(intel_crtc); + is_dsi = intel_pipe_has_type(crtc, INTEL_OUTPUT_DSI); + + if (!is_dsi && !IS_CHERRYVIEW(dev)) + vlv_prepare_pll(intel_crtc); /* Set up the display plane register */ dspcntr = DISPPLANE_GAMMA_ENABLE; @@ -4598,8 +4601,6 @@ static void valleyview_crtc_enable(struct drm_crtc *crtc) if (encoder->pre_pll_enable) encoder->pre_pll_enable(encoder); - is_dsi = intel_pipe_has_type(crtc, INTEL_OUTPUT_DSI); - if (!is_dsi) { if (IS_CHERRYVIEW(dev)) chv_enable_pll(intel_crtc); @@ -12411,8 +12412,8 @@ intel_display_capture_error_state(struct drm_device *dev) for_each_pipe(i) { error->pipe[i].power_domain_on = - intel_display_power_enabled_sw(dev_priv, - POWER_DOMAIN_PIPE(i)); + intel_display_power_enabled_unlocked(dev_priv, + POWER_DOMAIN_PIPE(i)); if (!error->pipe[i].power_domain_on) continue; @@ -12447,7 +12448,7 @@ intel_display_capture_error_state(struct drm_device *dev) enum transcoder cpu_transcoder = transcoders[i]; error->transcoder[i].power_domain_on = - intel_display_power_enabled_sw(dev_priv, + intel_display_power_enabled_unlocked(dev_priv, POWER_DOMAIN_TRANSCODER(cpu_transcoder)); if (!error->transcoder[i].power_domain_on) continue; diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h index bda0ae3d80cc..eaa27ee9e367 100644 --- a/drivers/gpu/drm/i915/intel_drv.h +++ b/drivers/gpu/drm/i915/intel_drv.h @@ -950,8 +950,8 @@ int intel_power_domains_init(struct drm_i915_private *); void intel_power_domains_remove(struct drm_i915_private *); bool intel_display_power_enabled(struct drm_i915_private *dev_priv, enum intel_display_power_domain domain); -bool intel_display_power_enabled_sw(struct drm_i915_private *dev_priv, - enum intel_display_power_domain domain); +bool intel_display_power_enabled_unlocked(struct drm_i915_private *dev_priv, + enum intel_display_power_domain domain); void intel_display_power_get(struct drm_i915_private *dev_priv, enum intel_display_power_domain domain); void intel_display_power_put(struct drm_i915_private *dev_priv, diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 54242e4f6f4c..9ad0c6afc487 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -5603,8 +5603,8 @@ static bool hsw_power_well_enabled(struct drm_i915_private *dev_priv, (HSW_PWR_WELL_ENABLE_REQUEST | HSW_PWR_WELL_STATE_ENABLED); } -bool intel_display_power_enabled_sw(struct drm_i915_private *dev_priv, - enum intel_display_power_domain domain) +bool intel_display_power_enabled_unlocked(struct drm_i915_private *dev_priv, + enum intel_display_power_domain domain) { struct i915_power_domains *power_domains; struct i915_power_well *power_well; @@ -5615,16 +5615,19 @@ bool intel_display_power_enabled_sw(struct drm_i915_private *dev_priv, return false; power_domains = &dev_priv->power_domains; + is_enabled = true; + for_each_power_well_rev(i, power_well, BIT(domain), power_domains) { if (power_well->always_on) continue; - if (!power_well->count) { + if (!power_well->hw_enabled) { is_enabled = false; break; } } + return is_enabled; } @@ -5632,30 +5635,15 @@ bool intel_display_power_enabled(struct drm_i915_private *dev_priv, enum intel_display_power_domain domain) { struct i915_power_domains *power_domains; - struct i915_power_well *power_well; - bool is_enabled; - int i; - - if (dev_priv->pm.suspended) - return false; + bool ret; power_domains = &dev_priv->power_domains; - is_enabled = true; - mutex_lock(&power_domains->lock); - for_each_power_well_rev(i, power_well, BIT(domain), power_domains) { - if (power_well->always_on) - continue; - - if (!power_well->ops->is_enabled(dev_priv, power_well)) { - is_enabled = false; - break; - } - } + ret = intel_display_power_enabled_unlocked(dev_priv, domain); mutex_unlock(&power_domains->lock); - return is_enabled; + return ret; } /* @@ -5976,6 +5964,7 @@ void intel_display_power_get(struct drm_i915_private *dev_priv, if (!power_well->count++) { DRM_DEBUG_KMS("enabling %s\n", power_well->name); power_well->ops->enable(dev_priv, power_well); + power_well->hw_enabled = true; } check_power_well_state(dev_priv, power_well); @@ -6005,6 +5994,7 @@ void intel_display_power_put(struct drm_i915_private *dev_priv, if (!--power_well->count && i915.disable_power_well) { DRM_DEBUG_KMS("disabling %s\n", power_well->name); + power_well->hw_enabled = false; power_well->ops->disable(dev_priv, power_well); } @@ -6267,8 +6257,11 @@ static void intel_power_domains_resume(struct drm_i915_private *dev_priv) int i; mutex_lock(&power_domains->lock); - for_each_power_well(i, power_well, POWER_DOMAIN_MASK, power_domains) + for_each_power_well(i, power_well, POWER_DOMAIN_MASK, power_domains) { power_well->ops->sync_hw(dev_priv, power_well); + power_well->hw_enabled = power_well->ops->is_enabled(dev_priv, + power_well); + } mutex_unlock(&power_domains->lock); } diff --git a/drivers/gpu/drm/msm/hdmi/hdmi.c b/drivers/gpu/drm/msm/hdmi/hdmi.c index ae750f6928c1..7f7aadef8a82 100644 --- a/drivers/gpu/drm/msm/hdmi/hdmi.c +++ b/drivers/gpu/drm/msm/hdmi/hdmi.c @@ -277,6 +277,7 @@ static int hdmi_bind(struct device *dev, struct device *master, void *data) static const char *hpd_reg_names[] = {"hpd-gdsc", "hpd-5v"}; static const char *pwr_reg_names[] = {"core-vdda", "core-vcc"}; static const char *hpd_clk_names[] = {"iface_clk", "core_clk", "mdp_core_clk"}; + static unsigned long hpd_clk_freq[] = {0, 19200000, 0}; static const char *pwr_clk_names[] = {"extp_clk", "alt_iface_clk"}; config.phy_init = hdmi_phy_8x74_init; @@ -286,6 +287,7 @@ static int hdmi_bind(struct device *dev, struct device *master, void *data) config.pwr_reg_names = pwr_reg_names; config.pwr_reg_cnt = ARRAY_SIZE(pwr_reg_names); config.hpd_clk_names = hpd_clk_names; + config.hpd_freq = hpd_clk_freq; config.hpd_clk_cnt = ARRAY_SIZE(hpd_clk_names); config.pwr_clk_names = pwr_clk_names; config.pwr_clk_cnt = ARRAY_SIZE(pwr_clk_names); diff --git a/drivers/gpu/drm/msm/hdmi/hdmi.h b/drivers/gpu/drm/msm/hdmi/hdmi.h index 9fafee6a3e43..9d7723c6528a 100644 --- a/drivers/gpu/drm/msm/hdmi/hdmi.h +++ b/drivers/gpu/drm/msm/hdmi/hdmi.h @@ -87,6 +87,7 @@ struct hdmi_platform_config { /* clks that need to be on for hpd: */ const char **hpd_clk_names; + const long unsigned *hpd_freq; int hpd_clk_cnt; /* clks that need to be on for screen pwr (ie pixel clk): */ diff --git a/drivers/gpu/drm/msm/hdmi/hdmi_connector.c b/drivers/gpu/drm/msm/hdmi/hdmi_connector.c index e56a6196867c..28f7e3ec6c28 100644 --- a/drivers/gpu/drm/msm/hdmi/hdmi_connector.c +++ b/drivers/gpu/drm/msm/hdmi/hdmi_connector.c @@ -127,6 +127,14 @@ static int hpd_enable(struct hdmi_connector *hdmi_connector) } for (i = 0; i < config->hpd_clk_cnt; i++) { + if (config->hpd_freq && config->hpd_freq[i]) { + ret = clk_set_rate(hdmi->hpd_clks[i], + config->hpd_freq[i]); + if (ret) + dev_warn(dev->dev, "failed to set clk %s (%d)\n", + config->hpd_clk_names[i], ret); + } + ret = clk_prepare_enable(hdmi->hpd_clks[i]); if (ret) { dev_err(dev->dev, "failed to enable hpd clk: %s (%d)\n", diff --git a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c index 42caf7fcb0b9..71510ee26e96 100644 --- a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c +++ b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c @@ -20,6 +20,10 @@ #include "msm_mmu.h" #include "mdp5_kms.h" +static const char *iommu_ports[] = { + "mdp_0", +}; + static struct mdp5_platform_config *mdp5_get_config(struct platform_device *dev); static int mdp5_hw_init(struct msm_kms *kms) @@ -104,6 +108,12 @@ static void mdp5_preclose(struct msm_kms *kms, struct drm_file *file) static void mdp5_destroy(struct msm_kms *kms) { struct mdp5_kms *mdp5_kms = to_mdp5_kms(to_mdp_kms(kms)); + struct msm_mmu *mmu = mdp5_kms->mmu; + + if (mmu) { + mmu->funcs->detach(mmu, iommu_ports, ARRAY_SIZE(iommu_ports)); + mmu->funcs->destroy(mmu); + } kfree(mdp5_kms); } @@ -216,10 +226,6 @@ fail: return ret; } -static const char *iommu_ports[] = { - "mdp_0", -}; - static int get_clk(struct platform_device *pdev, struct clk **clkp, const char *name) { @@ -317,17 +323,23 @@ struct msm_kms *mdp5_kms_init(struct drm_device *dev) mmu = msm_iommu_new(dev, config->iommu); if (IS_ERR(mmu)) { ret = PTR_ERR(mmu); + dev_err(dev->dev, "failed to init iommu: %d\n", ret); goto fail; } + ret = mmu->funcs->attach(mmu, iommu_ports, ARRAY_SIZE(iommu_ports)); - if (ret) + if (ret) { + dev_err(dev->dev, "failed to attach iommu: %d\n", ret); + mmu->funcs->destroy(mmu); goto fail; + } } else { dev_info(dev->dev, "no iommu, fallback to phys " "contig buffers for scanout\n"); mmu = NULL; } + mdp5_kms->mmu = mmu; mdp5_kms->id = msm_register_mmu(dev, mmu); if (mdp5_kms->id < 0) { diff --git a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.h b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.h index c8b1a2522c25..6e981b692d1d 100644 --- a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.h +++ b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.h @@ -33,6 +33,7 @@ struct mdp5_kms { /* mapper-id used to request GEM buffer mapped for scanout: */ int id; + struct msm_mmu *mmu; /* for tracking smp allocation amongst pipes: */ mdp5_smp_state_t smp_state; diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c index 0d2562fb681e..9a5d87db5c23 100644 --- a/drivers/gpu/drm/msm/msm_drv.c +++ b/drivers/gpu/drm/msm/msm_drv.c @@ -159,7 +159,7 @@ static int msm_unload(struct drm_device *dev) static int get_mdp_ver(struct platform_device *pdev) { #ifdef CONFIG_OF - const static struct of_device_id match_types[] = { { + static const struct of_device_id match_types[] = { { .compatible = "qcom,mdss_mdp", .data = (void *)5, }, { diff --git a/drivers/gpu/drm/msm/msm_fbdev.c b/drivers/gpu/drm/msm/msm_fbdev.c index a752ab83b810..5107fc4826bc 100644 --- a/drivers/gpu/drm/msm/msm_fbdev.c +++ b/drivers/gpu/drm/msm/msm_fbdev.c @@ -59,7 +59,7 @@ static int msm_fbdev_create(struct drm_fb_helper *helper, struct drm_framebuffer *fb = NULL; struct fb_info *fbi = NULL; struct drm_mode_fb_cmd2 mode_cmd = {0}; - dma_addr_t paddr; + uint32_t paddr; int ret, size; sizes->surface_bpp = 32; diff --git a/drivers/gpu/drm/msm/msm_gem.c b/drivers/gpu/drm/msm/msm_gem.c index bb8026daebc9..690d7e7b6d1e 100644 --- a/drivers/gpu/drm/msm/msm_gem.c +++ b/drivers/gpu/drm/msm/msm_gem.c @@ -278,6 +278,7 @@ int msm_gem_get_iova_locked(struct drm_gem_object *obj, int id, uint32_t *iova) { struct msm_gem_object *msm_obj = to_msm_bo(obj); + struct drm_device *dev = obj->dev; int ret = 0; if (!msm_obj->domain[id].iova) { @@ -285,6 +286,11 @@ int msm_gem_get_iova_locked(struct drm_gem_object *obj, int id, struct msm_mmu *mmu = priv->mmus[id]; struct page **pages = get_pages(obj); + if (!mmu) { + dev_err(dev->dev, "null MMU pointer\n"); + return -EINVAL; + } + if (IS_ERR(pages)) return PTR_ERR(pages); diff --git a/drivers/gpu/drm/msm/msm_iommu.c b/drivers/gpu/drm/msm/msm_iommu.c index 92b745986231..4b2ad9181edf 100644 --- a/drivers/gpu/drm/msm/msm_iommu.c +++ b/drivers/gpu/drm/msm/msm_iommu.c @@ -28,7 +28,7 @@ static int msm_fault_handler(struct iommu_domain *iommu, struct device *dev, unsigned long iova, int flags, void *arg) { DBG("*** fault: iova=%08lx, flags=%d", iova, flags); - return 0; + return -ENOSYS; } static int msm_iommu_attach(struct msm_mmu *mmu, const char **names, int cnt) @@ -40,8 +40,10 @@ static int msm_iommu_attach(struct msm_mmu *mmu, const char **names, int cnt) for (i = 0; i < cnt; i++) { struct device *msm_iommu_get_ctx(const char *ctx_name); struct device *ctx = msm_iommu_get_ctx(names[i]); - if (IS_ERR_OR_NULL(ctx)) + if (IS_ERR_OR_NULL(ctx)) { + dev_warn(dev->dev, "couldn't get %s context", names[i]); continue; + } ret = iommu_attach_device(iommu->domain, ctx); if (ret) { dev_warn(dev->dev, "could not attach iommu to %s", names[i]); @@ -52,6 +54,20 @@ static int msm_iommu_attach(struct msm_mmu *mmu, const char **names, int cnt) return 0; } +static void msm_iommu_detach(struct msm_mmu *mmu, const char **names, int cnt) +{ + struct msm_iommu *iommu = to_msm_iommu(mmu); + int i; + + for (i = 0; i < cnt; i++) { + struct device *msm_iommu_get_ctx(const char *ctx_name); + struct device *ctx = msm_iommu_get_ctx(names[i]); + if (IS_ERR_OR_NULL(ctx)) + continue; + iommu_detach_device(iommu->domain, ctx); + } +} + static int msm_iommu_map(struct msm_mmu *mmu, uint32_t iova, struct sg_table *sgt, unsigned len, int prot) { @@ -110,7 +126,7 @@ static int msm_iommu_unmap(struct msm_mmu *mmu, uint32_t iova, VERB("unmap[%d]: %08x(%x)", i, iova, bytes); - BUG_ON(!IS_ALIGNED(bytes, PAGE_SIZE)); + BUG_ON(!PAGE_ALIGNED(bytes)); da += bytes; } @@ -127,6 +143,7 @@ static void msm_iommu_destroy(struct msm_mmu *mmu) static const struct msm_mmu_funcs funcs = { .attach = msm_iommu_attach, + .detach = msm_iommu_detach, .map = msm_iommu_map, .unmap = msm_iommu_unmap, .destroy = msm_iommu_destroy, diff --git a/drivers/gpu/drm/msm/msm_mmu.h b/drivers/gpu/drm/msm/msm_mmu.h index 030324482b4a..21da6d154f71 100644 --- a/drivers/gpu/drm/msm/msm_mmu.h +++ b/drivers/gpu/drm/msm/msm_mmu.h @@ -22,6 +22,7 @@ struct msm_mmu_funcs { int (*attach)(struct msm_mmu *mmu, const char **names, int cnt); + void (*detach)(struct msm_mmu *mmu, const char **names, int cnt); int (*map)(struct msm_mmu *mmu, uint32_t iova, struct sg_table *sgt, unsigned len, int prot); int (*unmap)(struct msm_mmu *mmu, uint32_t iova, struct sg_table *sgt, diff --git a/drivers/gpu/drm/radeon/atombios_dp.c b/drivers/gpu/drm/radeon/atombios_dp.c index c5b1f2da3954..35f4182c63b6 100644 --- a/drivers/gpu/drm/radeon/atombios_dp.c +++ b/drivers/gpu/drm/radeon/atombios_dp.c @@ -403,16 +403,18 @@ bool radeon_dp_getdpcd(struct radeon_connector *radeon_connector) { struct radeon_connector_atom_dig *dig_connector = radeon_connector->con_priv; u8 msg[DP_DPCD_SIZE]; - int ret, i; + int ret; + + char dpcd_hex_dump[DP_DPCD_SIZE * 3]; ret = drm_dp_dpcd_read(&radeon_connector->ddc_bus->aux, DP_DPCD_REV, msg, DP_DPCD_SIZE); if (ret > 0) { memcpy(dig_connector->dpcd, msg, DP_DPCD_SIZE); - DRM_DEBUG_KMS("DPCD: "); - for (i = 0; i < DP_DPCD_SIZE; i++) - DRM_DEBUG_KMS("%02x ", msg[i]); - DRM_DEBUG_KMS("\n"); + + hex_dump_to_buffer(dig_connector->dpcd, sizeof(dig_connector->dpcd), + 32, 1, dpcd_hex_dump, sizeof(dpcd_hex_dump), false); + DRM_DEBUG_KMS("DPCD: %s\n", dpcd_hex_dump); radeon_dp_probe_oui(radeon_connector); diff --git a/drivers/gpu/drm/radeon/cikd.h b/drivers/gpu/drm/radeon/cikd.h index ae88660f34ea..0c6e1b55d968 100644 --- a/drivers/gpu/drm/radeon/cikd.h +++ b/drivers/gpu/drm/radeon/cikd.h @@ -1752,12 +1752,12 @@ #define EOP_TC_WB_ACTION_EN (1 << 15) /* L2 */ #define EOP_TCL1_ACTION_EN (1 << 16) #define EOP_TC_ACTION_EN (1 << 17) /* L2 */ +#define EOP_TCL2_VOLATILE (1 << 24) #define EOP_CACHE_POLICY(x) ((x) << 25) /* 0 - LRU * 1 - Stream * 2 - Bypass */ -#define EOP_TCL2_VOLATILE (1 << 27) #define DATA_SEL(x) ((x) << 29) /* 0 - discard * 1 - send low 32bit data diff --git a/drivers/gpu/drm/radeon/cypress_dpm.c b/drivers/gpu/drm/radeon/cypress_dpm.c index 5a9a5f4d7888..47d31e915758 100644 --- a/drivers/gpu/drm/radeon/cypress_dpm.c +++ b/drivers/gpu/drm/radeon/cypress_dpm.c @@ -1551,7 +1551,7 @@ int cypress_populate_smc_voltage_tables(struct radeon_device *rdev, table->voltageMaskTable.highMask[RV770_SMC_VOLTAGEMASK_VDDCI] = 0; table->voltageMaskTable.lowMask[RV770_SMC_VOLTAGEMASK_VDDCI] = - cpu_to_be32(eg_pi->vddc_voltage_table.mask_low); + cpu_to_be32(eg_pi->vddci_voltage_table.mask_low); } return 0; diff --git a/drivers/gpu/drm/radeon/kv_dpm.c b/drivers/gpu/drm/radeon/kv_dpm.c index 3f6e817d97ee..9ef8c38f2d66 100644 --- a/drivers/gpu/drm/radeon/kv_dpm.c +++ b/drivers/gpu/drm/radeon/kv_dpm.c @@ -2726,7 +2726,7 @@ int kv_dpm_init(struct radeon_device *rdev) pi->caps_sclk_ds = true; pi->enable_auto_thermal_throttling = true; pi->disable_nb_ps3_in_battery = false; - pi->bapm_enable = false; + pi->bapm_enable = true; pi->voltage_drop_t = 0; pi->caps_sclk_throttle_low_notification = false; pi->caps_fps = false; /* true? */ diff --git a/drivers/gpu/drm/radeon/ni_dpm.c b/drivers/gpu/drm/radeon/ni_dpm.c index 004c931606c4..01fc4888e6fe 100644 --- a/drivers/gpu/drm/radeon/ni_dpm.c +++ b/drivers/gpu/drm/radeon/ni_dpm.c @@ -1315,7 +1315,7 @@ static void ni_populate_smc_voltage_tables(struct radeon_device *rdev, table->voltageMaskTable.highMask[NISLANDS_SMC_VOLTAGEMASK_VDDCI] = 0; table->voltageMaskTable.lowMask[NISLANDS_SMC_VOLTAGEMASK_VDDCI] = - cpu_to_be32(eg_pi->vddc_voltage_table.mask_low); + cpu_to_be32(eg_pi->vddci_voltage_table.mask_low); } } diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h index 4b0bbf88d5c0..29d9cc04c04e 100644 --- a/drivers/gpu/drm/radeon/radeon.h +++ b/drivers/gpu/drm/radeon/radeon.h @@ -102,6 +102,7 @@ extern int radeon_runtime_pm; extern int radeon_hard_reset; extern int radeon_vm_size; extern int radeon_vm_block_size; +extern int radeon_deep_color; /* * Copy from radeon_drv.h so we don't have to include both and have conflicting @@ -749,10 +750,6 @@ union radeon_irq_stat_regs { struct cik_irq_stat_regs cik; }; -#define RADEON_MAX_HPD_PINS 7 -#define RADEON_MAX_CRTCS 6 -#define RADEON_MAX_AFMT_BLOCKS 7 - struct radeon_irq { bool installed; spinlock_t lock; diff --git a/drivers/gpu/drm/radeon/radeon_atombios.c b/drivers/gpu/drm/radeon/radeon_atombios.c index 30844814c25a..173f378428a9 100644 --- a/drivers/gpu/drm/radeon/radeon_atombios.c +++ b/drivers/gpu/drm/radeon/radeon_atombios.c @@ -1227,11 +1227,19 @@ bool radeon_atom_get_clock_info(struct drm_device *dev) rdev->clock.default_dispclk = le32_to_cpu(firmware_info->info_21.ulDefaultDispEngineClkFreq); if (rdev->clock.default_dispclk == 0) { - if (ASIC_IS_DCE5(rdev)) + if (ASIC_IS_DCE6(rdev)) + rdev->clock.default_dispclk = 60000; /* 600 Mhz */ + else if (ASIC_IS_DCE5(rdev)) rdev->clock.default_dispclk = 54000; /* 540 Mhz */ else rdev->clock.default_dispclk = 60000; /* 600 Mhz */ } + /* set a reasonable default for DP */ + if (ASIC_IS_DCE6(rdev) && (rdev->clock.default_dispclk < 53900)) { + DRM_INFO("Changing default dispclk from %dMhz to 600Mhz\n", + rdev->clock.default_dispclk / 100); + rdev->clock.default_dispclk = 60000; + } rdev->clock.dp_extclk = le16_to_cpu(firmware_info->info_21.usUniphyDPModeExtClkFreq); rdev->clock.current_dispclk = rdev->clock.default_dispclk; diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c b/drivers/gpu/drm/radeon/radeon_connectors.c index 1b9177ed181f..44831197e82e 100644 --- a/drivers/gpu/drm/radeon/radeon_connectors.c +++ b/drivers/gpu/drm/radeon/radeon_connectors.c @@ -199,6 +199,9 @@ int radeon_get_monitor_bpc(struct drm_connector *connector) } } + if ((radeon_deep_color == 0) && (bpc > 8)) + bpc = 8; + DRM_DEBUG("%s: Display bpc=%d, returned bpc=%d\n", connector->name, connector->display_info.bpc, bpc); diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c index 8fc362aa6a1a..13896edcf0b6 100644 --- a/drivers/gpu/drm/radeon/radeon_display.c +++ b/drivers/gpu/drm/radeon/radeon_display.c @@ -285,7 +285,6 @@ static void radeon_unpin_work_func(struct work_struct *__work) void radeon_crtc_handle_vblank(struct radeon_device *rdev, int crtc_id) { struct radeon_crtc *radeon_crtc = rdev->mode_info.crtcs[crtc_id]; - struct radeon_flip_work *work; unsigned long flags; u32 update_pending; int vpos, hpos; @@ -295,8 +294,11 @@ void radeon_crtc_handle_vblank(struct radeon_device *rdev, int crtc_id) return; spin_lock_irqsave(&rdev->ddev->event_lock, flags); - work = radeon_crtc->flip_work; - if (work == NULL) { + if (radeon_crtc->flip_status != RADEON_FLIP_SUBMITTED) { + DRM_DEBUG_DRIVER("radeon_crtc->flip_status = %d != " + "RADEON_FLIP_SUBMITTED(%d)\n", + radeon_crtc->flip_status, + RADEON_FLIP_SUBMITTED); spin_unlock_irqrestore(&rdev->ddev->event_lock, flags); return; } @@ -344,12 +346,17 @@ void radeon_crtc_handle_flip(struct radeon_device *rdev, int crtc_id) spin_lock_irqsave(&rdev->ddev->event_lock, flags); work = radeon_crtc->flip_work; - if (work == NULL) { + if (radeon_crtc->flip_status != RADEON_FLIP_SUBMITTED) { + DRM_DEBUG_DRIVER("radeon_crtc->flip_status = %d != " + "RADEON_FLIP_SUBMITTED(%d)\n", + radeon_crtc->flip_status, + RADEON_FLIP_SUBMITTED); spin_unlock_irqrestore(&rdev->ddev->event_lock, flags); return; } /* Pageflip completed. Clean up. */ + radeon_crtc->flip_status = RADEON_FLIP_NONE; radeon_crtc->flip_work = NULL; /* wakeup userspace */ @@ -476,6 +483,7 @@ static void radeon_flip_work_func(struct work_struct *__work) /* do the flip (mmio) */ radeon_page_flip(rdev, radeon_crtc->crtc_id, base); + radeon_crtc->flip_status = RADEON_FLIP_SUBMITTED; spin_unlock_irqrestore(&crtc->dev->event_lock, flags); up_read(&rdev->exclusive_lock); @@ -544,7 +552,7 @@ static int radeon_crtc_page_flip(struct drm_crtc *crtc, /* We borrow the event spin lock for protecting flip_work */ spin_lock_irqsave(&crtc->dev->event_lock, flags); - if (radeon_crtc->flip_work) { + if (radeon_crtc->flip_status != RADEON_FLIP_NONE) { DRM_DEBUG_DRIVER("flip queue: crtc already busy\n"); spin_unlock_irqrestore(&crtc->dev->event_lock, flags); drm_gem_object_unreference_unlocked(&work->old_rbo->gem_base); @@ -552,6 +560,7 @@ static int radeon_crtc_page_flip(struct drm_crtc *crtc, kfree(work); return -EBUSY; } + radeon_crtc->flip_status = RADEON_FLIP_PENDING; radeon_crtc->flip_work = work; /* update crtc fb */ diff --git a/drivers/gpu/drm/radeon/radeon_drv.c b/drivers/gpu/drm/radeon/radeon_drv.c index 6e3017413386..cb1421369e3a 100644 --- a/drivers/gpu/drm/radeon/radeon_drv.c +++ b/drivers/gpu/drm/radeon/radeon_drv.c @@ -175,6 +175,7 @@ int radeon_runtime_pm = -1; int radeon_hard_reset = 0; int radeon_vm_size = 4096; int radeon_vm_block_size = 9; +int radeon_deep_color = 0; MODULE_PARM_DESC(no_wb, "Disable AGP writeback for scratch registers"); module_param_named(no_wb, radeon_no_wb, int, 0444); @@ -248,6 +249,9 @@ module_param_named(vm_size, radeon_vm_size, int, 0444); MODULE_PARM_DESC(vm_block_size, "VM page table size in bits (default 9)"); module_param_named(vm_block_size, radeon_vm_block_size, int, 0444); +MODULE_PARM_DESC(deep_color, "Deep Color support (1 = enable, 0 = disable (default))"); +module_param_named(deep_color, radeon_deep_color, int, 0444); + static struct pci_device_id pciidlist[] = { radeon_PCI_IDS }; diff --git a/drivers/gpu/drm/radeon/radeon_mode.h b/drivers/gpu/drm/radeon/radeon_mode.h index ad0e4b8cc7e3..0592ddb0904b 100644 --- a/drivers/gpu/drm/radeon/radeon_mode.h +++ b/drivers/gpu/drm/radeon/radeon_mode.h @@ -46,6 +46,10 @@ struct radeon_device; #define to_radeon_encoder(x) container_of(x, struct radeon_encoder, base) #define to_radeon_framebuffer(x) container_of(x, struct radeon_framebuffer, base) +#define RADEON_MAX_HPD_PINS 7 +#define RADEON_MAX_CRTCS 6 +#define RADEON_MAX_AFMT_BLOCKS 7 + enum radeon_rmx_type { RMX_OFF, RMX_FULL, @@ -233,8 +237,8 @@ struct radeon_mode_info { struct card_info *atom_card_info; enum radeon_connector_table connector_table; bool mode_config_initialized; - struct radeon_crtc *crtcs[6]; - struct radeon_afmt *afmt[7]; + struct radeon_crtc *crtcs[RADEON_MAX_CRTCS]; + struct radeon_afmt *afmt[RADEON_MAX_AFMT_BLOCKS]; /* DVI-I properties */ struct drm_property *coherent_mode_property; /* DAC enable load detect */ @@ -302,6 +306,12 @@ struct radeon_atom_ss { uint16_t amount; }; +enum radeon_flip_status { + RADEON_FLIP_NONE, + RADEON_FLIP_PENDING, + RADEON_FLIP_SUBMITTED +}; + struct radeon_crtc { struct drm_crtc base; int crtc_id; @@ -327,6 +337,7 @@ struct radeon_crtc { /* page flipping */ struct workqueue_struct *flip_queue; struct radeon_flip_work *flip_work; + enum radeon_flip_status flip_status; /* pll sharing */ struct radeon_atom_ss ss; bool ss_enabled; diff --git a/drivers/gpu/drm/radeon/radeon_pm.c b/drivers/gpu/drm/radeon/radeon_pm.c index 12c663e86ca1..e447e390d09a 100644 --- a/drivers/gpu/drm/radeon/radeon_pm.c +++ b/drivers/gpu/drm/radeon/radeon_pm.c @@ -73,8 +73,10 @@ void radeon_pm_acpi_event_handler(struct radeon_device *rdev) rdev->pm.dpm.ac_power = true; else rdev->pm.dpm.ac_power = false; - if (rdev->asic->dpm.enable_bapm) - radeon_dpm_enable_bapm(rdev, rdev->pm.dpm.ac_power); + if (rdev->family == CHIP_ARUBA) { + if (rdev->asic->dpm.enable_bapm) + radeon_dpm_enable_bapm(rdev, rdev->pm.dpm.ac_power); + } mutex_unlock(&rdev->pm.mutex); } else if (rdev->pm.pm_method == PM_METHOD_PROFILE) { if (rdev->pm.profile == PM_PROFILE_AUTO) { diff --git a/drivers/gpu/drm/radeon/radeon_vm.c b/drivers/gpu/drm/radeon/radeon_vm.c index 899d9126cad6..eecff6bbd341 100644 --- a/drivers/gpu/drm/radeon/radeon_vm.c +++ b/drivers/gpu/drm/radeon/radeon_vm.c @@ -495,7 +495,7 @@ int radeon_vm_bo_set_addr(struct radeon_device *rdev, mutex_unlock(&vm->mutex); r = radeon_bo_create(rdev, RADEON_VM_PTE_COUNT * 8, - RADEON_GPU_PAGE_SIZE, false, + RADEON_GPU_PAGE_SIZE, true, RADEON_GEM_DOMAIN_VRAM, NULL, &pt); if (r) return r; @@ -992,7 +992,7 @@ int radeon_vm_init(struct radeon_device *rdev, struct radeon_vm *vm) return -ENOMEM; } - r = radeon_bo_create(rdev, pd_size, align, false, + r = radeon_bo_create(rdev, pd_size, align, true, RADEON_GEM_DOMAIN_VRAM, NULL, &vm->page_directory); if (r) diff --git a/drivers/gpu/drm/radeon/trinity_dpm.c b/drivers/gpu/drm/radeon/trinity_dpm.c index 2a2822c03329..20da6ff183df 100644 --- a/drivers/gpu/drm/radeon/trinity_dpm.c +++ b/drivers/gpu/drm/radeon/trinity_dpm.c @@ -1874,7 +1874,15 @@ int trinity_dpm_init(struct radeon_device *rdev) for (i = 0; i < SUMO_MAX_HARDWARE_POWERLEVELS; i++) pi->at[i] = TRINITY_AT_DFLT; - pi->enable_bapm = false; + /* There are stability issues reported on latops with + * bapm installed when switching between AC and battery + * power. At the same time, some desktop boards hang + * if it's not enabled and dpm is enabled. + */ + if (rdev->flags & RADEON_IS_MOBILITY) + pi->enable_bapm = false; + else + pi->enable_bapm = true; pi->enable_nbps_policy = true; pi->enable_sclk_ds = true; pi->enable_gfx_power_gating = true; diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig index 08531a128f53..02d3d85829f3 100644 --- a/drivers/hwmon/Kconfig +++ b/drivers/hwmon/Kconfig @@ -1052,7 +1052,7 @@ config SENSORS_PC87427 will be called pc87427. config SENSORS_NTC_THERMISTOR - tristate "NTC thermistor support" + tristate "NTC thermistor support from Murata" depends on !OF || IIO=n || IIO help This driver supports NTC thermistors sensor reading and its @@ -1060,7 +1060,8 @@ config SENSORS_NTC_THERMISTOR send notifications about the temperature. Currently, this driver supports - NCP15WB473, NCP18WB473, NCP21WB473, NCP03WB473, and NCP15WL333. + NCP15WB473, NCP18WB473, NCP21WB473, NCP03WB473, and NCP15WL333 + from Murata. This driver can also be built as a module. If so, the module will be called ntc-thermistor. @@ -1176,6 +1177,7 @@ config SENSORS_DME1737 config SENSORS_EMC1403 tristate "SMSC EMC1403/23 thermal sensor" depends on I2C + select REGMAP_I2C help If you say yes here you get support for the SMSC EMC1403/23 temperature monitoring chip. diff --git a/drivers/hwmon/gpio-fan.c b/drivers/hwmon/gpio-fan.c index ba35e4d530b5..2566c43dd1e9 100644 --- a/drivers/hwmon/gpio-fan.c +++ b/drivers/hwmon/gpio-fan.c @@ -538,7 +538,7 @@ static int gpio_fan_probe(struct platform_device *pdev) /* Make this driver part of hwmon class. */ fan_data->hwmon_dev = hwmon_device_register_with_groups(&pdev->dev, - "gpio-fan", fan_data, + "gpio_fan", fan_data, gpio_fan_groups); if (IS_ERR(fan_data->hwmon_dev)) return PTR_ERR(fan_data->hwmon_dev); diff --git a/drivers/hwmon/ntc_thermistor.c b/drivers/hwmon/ntc_thermistor.c index e76feb86a1d4..bdfbe9114889 100644 --- a/drivers/hwmon/ntc_thermistor.c +++ b/drivers/hwmon/ntc_thermistor.c @@ -163,6 +163,18 @@ static int ntc_adc_iio_read(struct ntc_thermistor_platform_data *pdata) } static const struct of_device_id ntc_match[] = { + { .compatible = "murata,ncp15wb473", + .data = &ntc_thermistor_id[0] }, + { .compatible = "murata,ncp18wb473", + .data = &ntc_thermistor_id[1] }, + { .compatible = "murata,ncp21wb473", + .data = &ntc_thermistor_id[2] }, + { .compatible = "murata,ncp03wb473", + .data = &ntc_thermistor_id[3] }, + { .compatible = "murata,ncp15wl333", + .data = &ntc_thermistor_id[4] }, + + /* Usage of vendor name "ntc" is deprecated */ { .compatible = "ntc,ncp15wb473", .data = &ntc_thermistor_id[0] }, { .compatible = "ntc,ncp18wb473", @@ -534,7 +546,7 @@ static struct platform_driver ntc_thermistor_driver = { module_platform_driver(ntc_thermistor_driver); -MODULE_DESCRIPTION("NTC Thermistor Driver"); +MODULE_DESCRIPTION("NTC Thermistor Driver from Murata"); MODULE_AUTHOR("MyungJoo Ham <myungjoo.ham@samsung.com>"); MODULE_LICENSE("GPL"); MODULE_ALIAS("platform:ntc-thermistor"); diff --git a/drivers/hwmon/w83l786ng.c b/drivers/hwmon/w83l786ng.c index 6ed76ceb9270..32487c19cbfc 100644 --- a/drivers/hwmon/w83l786ng.c +++ b/drivers/hwmon/w83l786ng.c @@ -249,7 +249,7 @@ static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \ int nr = to_sensor_dev_attr(attr)->index; \ struct w83l786ng_data *data = w83l786ng_update_device(dev); \ return sprintf(buf, "%d\n", \ - FAN_FROM_REG(data->fan[nr], DIV_FROM_REG(data->fan_div[nr]))); \ + FAN_FROM_REG(data->reg[nr], DIV_FROM_REG(data->fan_div[nr]))); \ } show_fan_reg(fan); diff --git a/drivers/iio/adc/ad799x.c b/drivers/iio/adc/ad799x.c index 39b4cb48d738..6eba301ee03d 100644 --- a/drivers/iio/adc/ad799x.c +++ b/drivers/iio/adc/ad799x.c @@ -427,9 +427,12 @@ static int ad799x_write_event_value(struct iio_dev *indio_dev, int ret; struct ad799x_state *st = iio_priv(indio_dev); + if (val < 0 || val > RES_MASK(chan->scan_type.realbits)) + return -EINVAL; + mutex_lock(&indio_dev->mlock); ret = ad799x_i2c_write16(st, ad799x_threshold_reg(chan, dir, info), - val); + val << chan->scan_type.shift); mutex_unlock(&indio_dev->mlock); return ret; @@ -452,7 +455,8 @@ static int ad799x_read_event_value(struct iio_dev *indio_dev, mutex_unlock(&indio_dev->mlock); if (ret < 0) return ret; - *val = valin; + *val = (valin >> chan->scan_type.shift) & + RES_MASK(chan->scan_type.realbits); return IIO_VAL_INT; } diff --git a/drivers/iio/inkern.c b/drivers/iio/inkern.c index d833d55052ea..c7497009d60a 100644 --- a/drivers/iio/inkern.c +++ b/drivers/iio/inkern.c @@ -183,7 +183,7 @@ static struct iio_channel *of_iio_channel_get_by_name(struct device_node *np, else if (name && index >= 0) { pr_err("ERROR: could not get IIO channel %s:%s(%i)\n", np->full_name, name ? name : "", index); - return chan; + return NULL; } /* @@ -193,8 +193,9 @@ static struct iio_channel *of_iio_channel_get_by_name(struct device_node *np, */ np = np->parent; if (np && !of_get_property(np, "io-channel-ranges", NULL)) - break; + return NULL; } + return chan; } @@ -317,6 +318,7 @@ struct iio_channel *iio_channel_get(struct device *dev, if (channel != NULL) return channel; } + return iio_channel_get_sys(name, channel_name); } EXPORT_SYMBOL_GPL(iio_channel_get); diff --git a/drivers/iommu/amd_iommu_v2.c b/drivers/iommu/amd_iommu_v2.c index d4daa05efe60..499b4366a98d 100644 --- a/drivers/iommu/amd_iommu_v2.c +++ b/drivers/iommu/amd_iommu_v2.c @@ -45,7 +45,7 @@ struct pri_queue { struct pasid_state { struct list_head list; /* For global state-list */ atomic_t count; /* Reference count */ - atomic_t mmu_notifier_count; /* Counting nested mmu_notifier + unsigned mmu_notifier_count; /* Counting nested mmu_notifier calls */ struct task_struct *task; /* Task bound to this PASID */ struct mm_struct *mm; /* mm_struct for the faults */ @@ -53,7 +53,8 @@ struct pasid_state { struct pri_queue pri[PRI_QUEUE_SIZE]; /* PRI tag states */ struct device_state *device_state; /* Link to our device_state */ int pasid; /* PASID index */ - spinlock_t lock; /* Protect pri_queues */ + spinlock_t lock; /* Protect pri_queues and + mmu_notifer_count */ wait_queue_head_t wq; /* To wait for count == 0 */ }; @@ -431,15 +432,19 @@ static void mn_invalidate_range_start(struct mmu_notifier *mn, { struct pasid_state *pasid_state; struct device_state *dev_state; + unsigned long flags; pasid_state = mn_to_state(mn); dev_state = pasid_state->device_state; - if (atomic_add_return(1, &pasid_state->mmu_notifier_count) == 1) { + spin_lock_irqsave(&pasid_state->lock, flags); + if (pasid_state->mmu_notifier_count == 0) { amd_iommu_domain_set_gcr3(dev_state->domain, pasid_state->pasid, __pa(empty_page_table)); } + pasid_state->mmu_notifier_count += 1; + spin_unlock_irqrestore(&pasid_state->lock, flags); } static void mn_invalidate_range_end(struct mmu_notifier *mn, @@ -448,15 +453,19 @@ static void mn_invalidate_range_end(struct mmu_notifier *mn, { struct pasid_state *pasid_state; struct device_state *dev_state; + unsigned long flags; pasid_state = mn_to_state(mn); dev_state = pasid_state->device_state; - if (atomic_dec_and_test(&pasid_state->mmu_notifier_count)) { + spin_lock_irqsave(&pasid_state->lock, flags); + pasid_state->mmu_notifier_count -= 1; + if (pasid_state->mmu_notifier_count == 0) { amd_iommu_domain_set_gcr3(dev_state->domain, pasid_state->pasid, __pa(pasid_state->mm->pgd)); } + spin_unlock_irqrestore(&pasid_state->lock, flags); } static void mn_release(struct mmu_notifier *mn, struct mm_struct *mm) @@ -650,7 +659,6 @@ int amd_iommu_bind_pasid(struct pci_dev *pdev, int pasid, goto out; atomic_set(&pasid_state->count, 1); - atomic_set(&pasid_state->mmu_notifier_count, 0); init_waitqueue_head(&pasid_state->wq); spin_lock_init(&pasid_state->lock); diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c index 6bb32773c3ac..51b6b77dc3e5 100644 --- a/drivers/iommu/intel-iommu.c +++ b/drivers/iommu/intel-iommu.c @@ -3816,14 +3816,11 @@ int dmar_iommu_notify_scope_dev(struct dmar_pci_notify_info *info) ((void *)rmrr) + rmrr->header.length, rmrr->segment, rmrru->devices, rmrru->devices_cnt); - if (ret > 0) - break; - else if(ret < 0) + if(ret < 0) return ret; } else if (info->event == BUS_NOTIFY_DEL_DEVICE) { - if (dmar_remove_dev_scope(info, rmrr->segment, - rmrru->devices, rmrru->devices_cnt)) - break; + dmar_remove_dev_scope(info, rmrr->segment, + rmrru->devices, rmrru->devices_cnt); } } diff --git a/drivers/isdn/hisax/Kconfig b/drivers/isdn/hisax/Kconfig index d9edcc94c2a8..97465ac5a2d5 100644 --- a/drivers/isdn/hisax/Kconfig +++ b/drivers/isdn/hisax/Kconfig @@ -16,7 +16,7 @@ config ISDN_DRV_HISAX also to the configuration option of the driver for your particular card, below. -if ISDN_DRV_HISAX!=n +if ISDN_DRV_HISAX comment "D-channel protocol features" @@ -348,10 +348,6 @@ config HISAX_ENTERNOW_PCI This enables HiSax support for the Formula-n enter:now PCI ISDN card. -endif - -if ISDN_DRV_HISAX - config HISAX_DEBUG bool "HiSax debugging" help @@ -420,11 +416,6 @@ config HISAX_FRITZ_PCIPNP (the latter also needs you to select "ISA Plug and Play support" from the menu "Plug and Play configuration") -config HISAX_AVM_A1_PCMCIA - bool - depends on HISAX_AVM_A1_CS - default y - endif endmenu diff --git a/drivers/macintosh/smu.c b/drivers/macintosh/smu.c index 23b4a3b28dbc..4eab93aa570b 100644 --- a/drivers/macintosh/smu.c +++ b/drivers/macintosh/smu.c @@ -1257,7 +1257,8 @@ static unsigned int smu_fpoll(struct file *file, poll_table *wait) if (pp->busy && pp->cmd.status != 1) mask |= POLLIN; spin_unlock_irqrestore(&pp->lock, flags); - } if (pp->mode == smu_file_events) { + } + if (pp->mode == smu_file_events) { /* Not yet implemented */ } return mask; diff --git a/drivers/memstick/host/rtsx_pci_ms.c b/drivers/memstick/host/rtsx_pci_ms.c index 2a635b6fdaf7..c880ba685754 100644 --- a/drivers/memstick/host/rtsx_pci_ms.c +++ b/drivers/memstick/host/rtsx_pci_ms.c @@ -601,6 +601,7 @@ static int rtsx_pci_ms_drv_remove(struct platform_device *pdev) pcr->slots[RTSX_MS_CARD].card_event = NULL; msh = host->msh; host->eject = true; + cancel_work_sync(&host->handle_req); mutex_lock(&host->host_mutex); if (host->req) { diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index ee8204cc31e9..6cc4b6acc22a 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -760,6 +760,7 @@ config MFD_SYSCON config MFD_DAVINCI_VOICECODEC tristate select MFD_CORE + select REGMAP_MMIO config MFD_TI_AM335X_TSCADC tristate "TI ADC / Touch Screen chip support" @@ -1225,7 +1226,7 @@ config MFD_WM8994 functionaltiy of the device other drivers must be enabled. config MFD_STW481X - bool "Support for ST Microelectronics STw481x" + tristate "Support for ST Microelectronics STw481x" depends on I2C && ARCH_NOMADIK select REGMAP_I2C select MFD_CORE @@ -1248,7 +1249,7 @@ config MCP_SA11X0 # Chip drivers config MCP_UCB1200 - bool "Support for UCB1200 / UCB1300" + tristate "Support for UCB1200 / UCB1300" depends on MCP_SA11X0 select MCP diff --git a/drivers/mfd/ab8500-core.c b/drivers/mfd/ab8500-core.c index a8ee4a36a1d8..cf2e6a198c6b 100644 --- a/drivers/mfd/ab8500-core.c +++ b/drivers/mfd/ab8500-core.c @@ -591,7 +591,7 @@ static int ab8500_irq_init(struct ab8500 *ab8500, struct device_node *np) num_irqs = AB8500_NR_IRQS; /* If ->irq_base is zero this will give a linear mapping */ - ab8500->domain = irq_domain_add_simple(NULL, + ab8500->domain = irq_domain_add_simple(ab8500->dev->of_node, num_irqs, 0, &ab8500_irq_ops, ab8500); diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig index a43d0c467274..ee9402324a23 100644 --- a/drivers/misc/Kconfig +++ b/drivers/misc/Kconfig @@ -54,7 +54,7 @@ config AD525X_DPOT_SPI config ATMEL_PWM tristate "Atmel AT32/AT91 PWM support" depends on HAVE_CLK - depends on AVR32 || AT91SAM9263 || AT91SAM9RL || AT91SAM9G45 + depends on AVR32 || ARCH_AT91SAM9263 || ARCH_AT91SAM9RL || ARCH_AT91SAM9G45 help This option enables device driver support for the PWM channels on certain Atmel processors. Pulse Width Modulation is used for diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index 04f35f960cb8..3a451b6cd3d5 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -1025,10 +1025,14 @@ static netdev_features_t bond_fix_features(struct net_device *dev, NETIF_F_FRAGLIST | NETIF_F_ALL_TSO | \ NETIF_F_HIGHDMA | NETIF_F_LRO) +#define BOND_ENC_FEATURES (NETIF_F_ALL_CSUM | NETIF_F_SG | NETIF_F_RXCSUM |\ + NETIF_F_TSO | NETIF_F_GSO_UDP_TUNNEL) + static void bond_compute_features(struct bonding *bond) { unsigned int flags, dst_release_flag = IFF_XMIT_DST_RELEASE; netdev_features_t vlan_features = BOND_VLAN_FEATURES; + netdev_features_t enc_features = BOND_ENC_FEATURES; struct net_device *bond_dev = bond->dev; struct list_head *iter; struct slave *slave; @@ -1044,6 +1048,9 @@ static void bond_compute_features(struct bonding *bond) vlan_features = netdev_increment_features(vlan_features, slave->dev->vlan_features, BOND_VLAN_FEATURES); + enc_features = netdev_increment_features(enc_features, + slave->dev->hw_enc_features, + BOND_ENC_FEATURES); dst_release_flag &= slave->dev->priv_flags; if (slave->dev->hard_header_len > max_hard_header_len) max_hard_header_len = slave->dev->hard_header_len; @@ -1054,6 +1061,7 @@ static void bond_compute_features(struct bonding *bond) done: bond_dev->vlan_features = vlan_features; + bond_dev->hw_enc_features = enc_features; bond_dev->hard_header_len = max_hard_header_len; bond_dev->gso_max_segs = gso_max_segs; netif_set_gso_max_size(bond_dev, gso_max_size); @@ -3975,6 +3983,7 @@ void bond_setup(struct net_device *bond_dev) NETIF_F_HW_VLAN_CTAG_FILTER; bond_dev->hw_features &= ~(NETIF_F_ALL_CSUM & ~NETIF_F_HW_CSUM); + bond_dev->hw_features |= NETIF_F_GSO_UDP_TUNNEL; bond_dev->features |= bond_dev->hw_features; } diff --git a/drivers/net/can/slcan.c b/drivers/net/can/slcan.c index dcf9196f6316..ea4d4f1a6411 100644 --- a/drivers/net/can/slcan.c +++ b/drivers/net/can/slcan.c @@ -52,6 +52,7 @@ #include <linux/delay.h> #include <linux/init.h> #include <linux/kernel.h> +#include <linux/workqueue.h> #include <linux/can.h> #include <linux/can/skb.h> @@ -85,6 +86,7 @@ struct slcan { struct tty_struct *tty; /* ptr to TTY structure */ struct net_device *dev; /* easy for intr handling */ spinlock_t lock; + struct work_struct tx_work; /* Flushes transmit buffer */ /* These are pointers to the malloc()ed frame buffers. */ unsigned char rbuff[SLC_MTU]; /* receiver buffer */ @@ -309,36 +311,46 @@ static void slc_encaps(struct slcan *sl, struct can_frame *cf) sl->dev->stats.tx_bytes += cf->can_dlc; } -/* - * Called by the driver when there's room for more data. If we have - * more packets to send, we send them here. - */ -static void slcan_write_wakeup(struct tty_struct *tty) +/* Write out any remaining transmit buffer. Scheduled when tty is writable */ +static void slcan_transmit(struct work_struct *work) { + struct slcan *sl = container_of(work, struct slcan, tx_work); int actual; - struct slcan *sl = (struct slcan *) tty->disc_data; + spin_lock_bh(&sl->lock); /* First make sure we're connected. */ - if (!sl || sl->magic != SLCAN_MAGIC || !netif_running(sl->dev)) + if (!sl->tty || sl->magic != SLCAN_MAGIC || !netif_running(sl->dev)) { + spin_unlock_bh(&sl->lock); return; + } - spin_lock_bh(&sl->lock); if (sl->xleft <= 0) { /* Now serial buffer is almost free & we can start * transmission of another packet */ sl->dev->stats.tx_packets++; - clear_bit(TTY_DO_WRITE_WAKEUP, &tty->flags); + clear_bit(TTY_DO_WRITE_WAKEUP, &sl->tty->flags); spin_unlock_bh(&sl->lock); netif_wake_queue(sl->dev); return; } - actual = tty->ops->write(tty, sl->xhead, sl->xleft); + actual = sl->tty->ops->write(sl->tty, sl->xhead, sl->xleft); sl->xleft -= actual; sl->xhead += actual; spin_unlock_bh(&sl->lock); } +/* + * Called by the driver when there's room for more data. + * Schedule the transmit. + */ +static void slcan_write_wakeup(struct tty_struct *tty) +{ + struct slcan *sl = tty->disc_data; + + schedule_work(&sl->tx_work); +} + /* Send a can_frame to a TTY queue. */ static netdev_tx_t slc_xmit(struct sk_buff *skb, struct net_device *dev) { @@ -528,6 +540,7 @@ static struct slcan *slc_alloc(dev_t line) sl->magic = SLCAN_MAGIC; sl->dev = dev; spin_lock_init(&sl->lock); + INIT_WORK(&sl->tx_work, slcan_transmit); slcan_devs[i] = dev; return sl; @@ -626,8 +639,12 @@ static void slcan_close(struct tty_struct *tty) if (!sl || sl->magic != SLCAN_MAGIC || sl->tty != tty) return; + spin_lock_bh(&sl->lock); tty->disc_data = NULL; sl->tty = NULL; + spin_unlock_bh(&sl->lock); + + flush_work(&sl->tx_work); /* Flush network side */ unregister_netdev(sl->dev); diff --git a/drivers/net/ethernet/allwinner/sun4i-emac.c b/drivers/net/ethernet/allwinner/sun4i-emac.c index 28460676b8ca..d81e7167a8b5 100644 --- a/drivers/net/ethernet/allwinner/sun4i-emac.c +++ b/drivers/net/ethernet/allwinner/sun4i-emac.c @@ -736,6 +736,7 @@ static int emac_open(struct net_device *dev) ret = emac_mdio_probe(dev); if (ret < 0) { + free_irq(dev->irq, dev); netdev_err(dev, "cannot probe MDIO bus\n"); return ret; } diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c index df2792d8383d..8afa579e7c40 100644 --- a/drivers/net/ethernet/broadcom/tg3.c +++ b/drivers/net/ethernet/broadcom/tg3.c @@ -3224,7 +3224,7 @@ static int tg3_nvram_read_using_eeprom(struct tg3 *tp, return 0; } -#define NVRAM_CMD_TIMEOUT 100 +#define NVRAM_CMD_TIMEOUT 5000 static int tg3_nvram_exec_cmd(struct tg3 *tp, u32 nvram_cmd) { @@ -3232,7 +3232,7 @@ static int tg3_nvram_exec_cmd(struct tg3 *tp, u32 nvram_cmd) tw32(NVRAM_CMD, nvram_cmd); for (i = 0; i < NVRAM_CMD_TIMEOUT; i++) { - udelay(10); + usleep_range(10, 40); if (tr32(NVRAM_CMD) & NVRAM_CMD_DONE) { udelay(10); break; @@ -7854,8 +7854,8 @@ static int tg3_tso_bug(struct tg3 *tp, struct sk_buff *skb) netif_wake_queue(tp->dev); } - segs = skb_gso_segment(skb, tp->dev->features & ~NETIF_F_TSO); - if (IS_ERR(segs)) + segs = skb_gso_segment(skb, tp->dev->features & ~(NETIF_F_TSO | NETIF_F_TSO6)); + if (IS_ERR(segs) || !segs) goto tg3_tso_bug_end; do { diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c index 2f8d6b910383..a83271cf17c3 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c +++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c @@ -4057,22 +4057,19 @@ int cxgb4_unregister_uld(enum cxgb4_uld type) EXPORT_SYMBOL(cxgb4_unregister_uld); /* Check if netdev on which event is occured belongs to us or not. Return - * suceess (1) if it belongs otherwise failure (0). + * success (true) if it belongs otherwise failure (false). + * Called with rcu_read_lock() held. */ -static int cxgb4_netdev(struct net_device *netdev) +static bool cxgb4_netdev(const struct net_device *netdev) { struct adapter *adap; int i; - spin_lock(&adap_rcu_lock); list_for_each_entry_rcu(adap, &adap_rcu_list, rcu_node) for (i = 0; i < MAX_NPORTS; i++) - if (adap->port[i] == netdev) { - spin_unlock(&adap_rcu_lock); - return 1; - } - spin_unlock(&adap_rcu_lock); - return 0; + if (adap->port[i] == netdev) + return true; + return false; } static int clip_add(struct net_device *event_dev, struct inet6_ifaddr *ifa, @@ -6396,6 +6393,7 @@ static void remove_one(struct pci_dev *pdev) adapter->flags &= ~DEV_ENABLED; } pci_release_regions(pdev); + synchronize_rcu(); kfree(adapter); } else pci_release_regions(pdev); diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c index bba67681aeaa..931478e7bd28 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c +++ b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c @@ -3962,6 +3962,7 @@ int t4_port_init(struct adapter *adap, int mbox, int pf, int vf) p->lport = j; p->rss_size = rss_size; memcpy(adap->port[i]->dev_addr, addr, ETH_ALEN); + adap->port[i]->dev_port = j; ret = ntohl(c.u.info.lstatus_to_modtype); p->mdio_addr = (ret & FW_PORT_CMD_MDIOCAP) ? diff --git a/drivers/net/ethernet/dec/tulip/timer.c b/drivers/net/ethernet/dec/tulip/timer.c index 768379b8aee9..523d9dde50a2 100644 --- a/drivers/net/ethernet/dec/tulip/timer.c +++ b/drivers/net/ethernet/dec/tulip/timer.c @@ -158,7 +158,7 @@ void comet_timer(unsigned long data) { struct net_device *dev = (struct net_device *)data; struct tulip_private *tp = netdev_priv(dev); - int next_tick = 60*HZ; + int next_tick = 2*HZ; if (tulip_debug > 1) netdev_dbg(dev, "Comet link status %04x partner capability %04x\n", diff --git a/drivers/net/ethernet/emulex/benet/be.h b/drivers/net/ethernet/emulex/benet/be.h index 2e7c5553955e..c2f5d2d3b932 100644 --- a/drivers/net/ethernet/emulex/benet/be.h +++ b/drivers/net/ethernet/emulex/benet/be.h @@ -557,9 +557,7 @@ static inline u16 be_max_qs(struct be_adapter *adapter) #define be_pvid_tagging_enabled(adapter) (adapter->pvid) /* Is BE in QNQ multi-channel mode */ -#define be_is_qnq_mode(adapter) (adapter->mc_type == FLEX10 || \ - adapter->mc_type == vNIC1 || \ - adapter->mc_type == UFP) +#define be_is_qnq_mode(adapter) (adapter->function_mode & QNQ_MODE) #define lancer_chip(adapter) (adapter->pdev->device == OC_DEVICE_ID3 || \ adapter->pdev->device == OC_DEVICE_ID4) diff --git a/drivers/net/ethernet/emulex/benet/be_cmds.h b/drivers/net/ethernet/emulex/benet/be_cmds.h index 3e0a6b243806..59b3c056f329 100644 --- a/drivers/net/ethernet/emulex/benet/be_cmds.h +++ b/drivers/net/ethernet/emulex/benet/be_cmds.h @@ -1091,7 +1091,7 @@ struct be_cmd_resp_modify_eq_delay { * based on the skew/IPL. */ #define RDMA_ENABLED 0x4 -#define FLEX10_MODE 0x400 +#define QNQ_MODE 0x400 #define VNIC_MODE 0x20000 #define UMC_ENABLED 0x1000000 struct be_cmd_req_query_fw_cfg { diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c index 6822b3d76d85..34a26e42f19d 100644 --- a/drivers/net/ethernet/emulex/benet/be_main.c +++ b/drivers/net/ethernet/emulex/benet/be_main.c @@ -3254,9 +3254,9 @@ err: static u8 be_convert_mc_type(u32 function_mode) { - if (function_mode & VNIC_MODE && function_mode & FLEX10_MODE) + if (function_mode & VNIC_MODE && function_mode & QNQ_MODE) return vNIC1; - else if (function_mode & FLEX10_MODE) + else if (function_mode & QNQ_MODE) return FLEX10; else if (function_mode & VNIC_MODE) return vNIC2; diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c index 38d9d276ab8b..77037fd377b8 100644 --- a/drivers/net/ethernet/freescale/fec_main.c +++ b/drivers/net/ethernet/freescale/fec_main.c @@ -320,6 +320,11 @@ static void *swap_buffer(void *bufaddr, int len) return bufaddr; } +static inline bool is_ipv4_pkt(struct sk_buff *skb) +{ + return skb->protocol == htons(ETH_P_IP) && ip_hdr(skb)->version == 4; +} + static int fec_enet_clear_csum(struct sk_buff *skb, struct net_device *ndev) { @@ -330,7 +335,8 @@ fec_enet_clear_csum(struct sk_buff *skb, struct net_device *ndev) if (unlikely(skb_cow_head(skb, 0))) return -1; - ip_hdr(skb)->check = 0; + if (is_ipv4_pkt(skb)) + ip_hdr(skb)->check = 0; *(__sum16 *)(skb->head + skb->csum_start + skb->csum_offset) = 0; return 0; diff --git a/drivers/net/ethernet/marvell/skge.c b/drivers/net/ethernet/marvell/skge.c index 7f81ae66cc89..e912b6887d40 100644 --- a/drivers/net/ethernet/marvell/skge.c +++ b/drivers/net/ethernet/marvell/skge.c @@ -4199,6 +4199,13 @@ static struct dmi_system_id skge_32bit_dma_boards[] = { DMI_MATCH(DMI_BOARD_NAME, "P5NSLI") }, }, + { + .ident = "FUJITSU SIEMENS A8NE-FM", + .matches = { + DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTek Computer INC."), + DMI_MATCH(DMI_BOARD_NAME, "A8NE-FM") + }, + }, {} }; diff --git a/drivers/net/ethernet/mellanox/mlx4/main.c b/drivers/net/ethernet/mellanox/mlx4/main.c index 5f42f6d6e4c6..82ab427290c3 100644 --- a/drivers/net/ethernet/mellanox/mlx4/main.c +++ b/drivers/net/ethernet/mellanox/mlx4/main.c @@ -2439,7 +2439,8 @@ slave_start: (num_vfs_argc > 1 || probe_vfs_argc > 1)) { mlx4_err(dev, "Invalid syntax of num_vfs/probe_vfs with IB port - single port VFs syntax is only supported when all ports are configured as ethernet\n"); - goto err_close; + err = -EINVAL; + goto err_master_mfunc; } for (i = 0; i < sizeof(nvfs)/sizeof(nvfs[0]); i++) { unsigned j; diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c index ff380dac6629..b988d16cd34e 100644 --- a/drivers/net/ethernet/ti/cpsw.c +++ b/drivers/net/ethernet/ti/cpsw.c @@ -1212,7 +1212,12 @@ static int cpsw_ndo_open(struct net_device *ndev) for_each_slave(priv, cpsw_slave_open, priv); /* Add default VLAN */ - cpsw_add_default_vlan(priv); + if (!priv->data.dual_emac) + cpsw_add_default_vlan(priv); + else + cpsw_ale_add_vlan(priv->ale, priv->data.default_vlan, + ALE_ALL_PORTS << priv->host_port, + ALE_ALL_PORTS << priv->host_port, 0, 0); if (!cpsw_common_res_usage_state(priv)) { /* setup tx dma to fixed prio and zero offset */ diff --git a/drivers/net/ethernet/tile/tilegx.c b/drivers/net/ethernet/tile/tilegx.c index 14389f841d43..4c70360967c2 100644 --- a/drivers/net/ethernet/tile/tilegx.c +++ b/drivers/net/ethernet/tile/tilegx.c @@ -2191,7 +2191,6 @@ static void tile_net_setup(struct net_device *dev) static void tile_net_dev_init(const char *name, const uint8_t *mac) { int ret; - int i; struct net_device *dev; struct tile_net_priv *priv; diff --git a/drivers/net/hyperv/netvsc.c b/drivers/net/hyperv/netvsc.c index c041f63a6d30..4ed38eaecea8 100644 --- a/drivers/net/hyperv/netvsc.c +++ b/drivers/net/hyperv/netvsc.c @@ -189,7 +189,7 @@ static int netvsc_destroy_buf(struct netvsc_device *net_device) "unable to teardown send buffer's gpadl\n"); return ret; } - net_device->recv_buf_gpadl_handle = 0; + net_device->send_buf_gpadl_handle = 0; } if (net_device->send_buf) { /* Free up the receive buffer */ diff --git a/drivers/net/ieee802154/at86rf230.c b/drivers/net/ieee802154/at86rf230.c index 4517b149ed07..50899416f668 100644 --- a/drivers/net/ieee802154/at86rf230.c +++ b/drivers/net/ieee802154/at86rf230.c @@ -1137,6 +1137,8 @@ static int at86rf230_probe(struct spi_device *spi) dev->flags = IEEE802154_HW_OMIT_CKSUM | IEEE802154_HW_AACK; irq_type = irq_get_trigger_type(spi->irq); + if (!irq_type) + irq_type = IRQF_TRIGGER_RISING; if (irq_type & (IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING)) { irq_worker = at86rf230_irqwork; irq_handler = at86rf230_isr; @@ -1168,7 +1170,8 @@ static int at86rf230_probe(struct spi_device *spi) if (rc) goto err_hw_init; - rc = devm_request_irq(&spi->dev, spi->irq, irq_handler, IRQF_SHARED, + rc = devm_request_irq(&spi->dev, spi->irq, irq_handler, + IRQF_SHARED | irq_type, dev_name(&spi->dev), lp); if (rc) goto err_hw_init; diff --git a/drivers/net/phy/at803x.c b/drivers/net/phy/at803x.c index 6c622aedbae1..fdc1b418fa6a 100644 --- a/drivers/net/phy/at803x.c +++ b/drivers/net/phy/at803x.c @@ -16,9 +16,13 @@ #include <linux/string.h> #include <linux/netdevice.h> #include <linux/etherdevice.h> +#include <linux/of_gpio.h> +#include <linux/gpio/consumer.h> #define AT803X_INTR_ENABLE 0x12 #define AT803X_INTR_STATUS 0x13 +#define AT803X_SMART_SPEED 0x14 +#define AT803X_LED_CONTROL 0x18 #define AT803X_WOL_ENABLE 0x01 #define AT803X_DEVICE_ADDR 0x03 #define AT803X_LOC_MAC_ADDR_0_15_OFFSET 0x804C @@ -35,10 +39,52 @@ #define AT803X_DEBUG_SYSTEM_MODE_CTRL 0x05 #define AT803X_DEBUG_RGMII_TX_CLK_DLY BIT(8) +#define ATH8030_PHY_ID 0x004dd076 +#define ATH8031_PHY_ID 0x004dd074 +#define ATH8035_PHY_ID 0x004dd072 + MODULE_DESCRIPTION("Atheros 803x PHY driver"); MODULE_AUTHOR("Matus Ujhelyi"); MODULE_LICENSE("GPL"); +struct at803x_priv { + bool phy_reset:1; + struct gpio_desc *gpiod_reset; +}; + +struct at803x_context { + u16 bmcr; + u16 advertise; + u16 control1000; + u16 int_enable; + u16 smart_speed; + u16 led_control; +}; + +/* save relevant PHY registers to private copy */ +static void at803x_context_save(struct phy_device *phydev, + struct at803x_context *context) +{ + context->bmcr = phy_read(phydev, MII_BMCR); + context->advertise = phy_read(phydev, MII_ADVERTISE); + context->control1000 = phy_read(phydev, MII_CTRL1000); + context->int_enable = phy_read(phydev, AT803X_INTR_ENABLE); + context->smart_speed = phy_read(phydev, AT803X_SMART_SPEED); + context->led_control = phy_read(phydev, AT803X_LED_CONTROL); +} + +/* restore relevant PHY registers from private copy */ +static void at803x_context_restore(struct phy_device *phydev, + const struct at803x_context *context) +{ + phy_write(phydev, MII_BMCR, context->bmcr); + phy_write(phydev, MII_ADVERTISE, context->advertise); + phy_write(phydev, MII_CTRL1000, context->control1000); + phy_write(phydev, AT803X_INTR_ENABLE, context->int_enable); + phy_write(phydev, AT803X_SMART_SPEED, context->smart_speed); + phy_write(phydev, AT803X_LED_CONTROL, context->led_control); +} + static int at803x_set_wol(struct phy_device *phydev, struct ethtool_wolinfo *wol) { @@ -142,6 +188,26 @@ static int at803x_resume(struct phy_device *phydev) return 0; } +static int at803x_probe(struct phy_device *phydev) +{ + struct device *dev = &phydev->dev; + struct at803x_priv *priv; + + priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + + priv->gpiod_reset = devm_gpiod_get(dev, "reset"); + if (IS_ERR(priv->gpiod_reset)) + priv->gpiod_reset = NULL; + else + gpiod_direction_output(priv->gpiod_reset, 1); + + phydev->priv = priv; + + return 0; +} + static int at803x_config_init(struct phy_device *phydev) { int ret; @@ -189,58 +255,99 @@ static int at803x_config_intr(struct phy_device *phydev) return err; } +static void at803x_link_change_notify(struct phy_device *phydev) +{ + struct at803x_priv *priv = phydev->priv; + + /* + * Conduct a hardware reset for AT8030 every time a link loss is + * signalled. This is necessary to circumvent a hardware bug that + * occurs when the cable is unplugged while TX packets are pending + * in the FIFO. In such cases, the FIFO enters an error mode it + * cannot recover from by software. + */ + if (phydev->drv->phy_id == ATH8030_PHY_ID) { + if (phydev->state == PHY_NOLINK) { + if (priv->gpiod_reset && !priv->phy_reset) { + struct at803x_context context; + + at803x_context_save(phydev, &context); + + gpiod_set_value(priv->gpiod_reset, 0); + msleep(1); + gpiod_set_value(priv->gpiod_reset, 1); + msleep(1); + + at803x_context_restore(phydev, &context); + + dev_dbg(&phydev->dev, "%s(): phy was reset\n", + __func__); + priv->phy_reset = true; + } + } else { + priv->phy_reset = false; + } + } +} + static struct phy_driver at803x_driver[] = { { /* ATHEROS 8035 */ - .phy_id = 0x004dd072, - .name = "Atheros 8035 ethernet", - .phy_id_mask = 0xffffffef, - .config_init = at803x_config_init, - .set_wol = at803x_set_wol, - .get_wol = at803x_get_wol, - .suspend = at803x_suspend, - .resume = at803x_resume, - .features = PHY_GBIT_FEATURES, - .flags = PHY_HAS_INTERRUPT, - .config_aneg = genphy_config_aneg, - .read_status = genphy_read_status, - .driver = { + .phy_id = ATH8035_PHY_ID, + .name = "Atheros 8035 ethernet", + .phy_id_mask = 0xffffffef, + .probe = at803x_probe, + .config_init = at803x_config_init, + .link_change_notify = at803x_link_change_notify, + .set_wol = at803x_set_wol, + .get_wol = at803x_get_wol, + .suspend = at803x_suspend, + .resume = at803x_resume, + .features = PHY_GBIT_FEATURES, + .flags = PHY_HAS_INTERRUPT, + .config_aneg = genphy_config_aneg, + .read_status = genphy_read_status, + .driver = { .owner = THIS_MODULE, }, }, { /* ATHEROS 8030 */ - .phy_id = 0x004dd076, - .name = "Atheros 8030 ethernet", - .phy_id_mask = 0xffffffef, - .config_init = at803x_config_init, - .set_wol = at803x_set_wol, - .get_wol = at803x_get_wol, - .suspend = at803x_suspend, - .resume = at803x_resume, - .features = PHY_GBIT_FEATURES, - .flags = PHY_HAS_INTERRUPT, - .config_aneg = genphy_config_aneg, - .read_status = genphy_read_status, - .driver = { + .phy_id = ATH8030_PHY_ID, + .name = "Atheros 8030 ethernet", + .phy_id_mask = 0xffffffef, + .probe = at803x_probe, + .config_init = at803x_config_init, + .link_change_notify = at803x_link_change_notify, + .set_wol = at803x_set_wol, + .get_wol = at803x_get_wol, + .suspend = at803x_suspend, + .resume = at803x_resume, + .features = PHY_GBIT_FEATURES, + .flags = PHY_HAS_INTERRUPT, + .config_aneg = genphy_config_aneg, + .read_status = genphy_read_status, + .driver = { .owner = THIS_MODULE, }, }, { /* ATHEROS 8031 */ - .phy_id = 0x004dd074, - .name = "Atheros 8031 ethernet", - .phy_id_mask = 0xffffffef, - .config_init = at803x_config_init, - .set_wol = at803x_set_wol, - .get_wol = at803x_get_wol, - .suspend = at803x_suspend, - .resume = at803x_resume, - .features = PHY_GBIT_FEATURES, - .flags = PHY_HAS_INTERRUPT, - .config_aneg = genphy_config_aneg, - .read_status = genphy_read_status, - .ack_interrupt = &at803x_ack_interrupt, - .config_intr = &at803x_config_intr, - .driver = { + .phy_id = ATH8031_PHY_ID, + .name = "Atheros 8031 ethernet", + .phy_id_mask = 0xffffffef, + .probe = at803x_probe, + .config_init = at803x_config_init, + .link_change_notify = at803x_link_change_notify, + .set_wol = at803x_set_wol, + .get_wol = at803x_get_wol, + .suspend = at803x_suspend, + .resume = at803x_resume, + .features = PHY_GBIT_FEATURES, + .flags = PHY_HAS_INTERRUPT, + .config_aneg = genphy_config_aneg, + .read_status = genphy_read_status, + .ack_interrupt = &at803x_ack_interrupt, + .config_intr = &at803x_config_intr, + .driver = { .owner = THIS_MODULE, }, } }; @@ -260,9 +367,9 @@ module_init(atheros_init); module_exit(atheros_exit); static struct mdio_device_id __maybe_unused atheros_tbl[] = { - { 0x004dd076, 0xffffffef }, - { 0x004dd074, 0xffffffef }, - { 0x004dd072, 0xffffffef }, + { ATH8030_PHY_ID, 0xffffffef }, + { ATH8031_PHY_ID, 0xffffffef }, + { ATH8035_PHY_ID, 0xffffffef }, { } }; diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c index 3bc079a67a3d..f7c61812ea4a 100644 --- a/drivers/net/phy/phy.c +++ b/drivers/net/phy/phy.c @@ -720,6 +720,9 @@ void phy_state_machine(struct work_struct *work) mutex_lock(&phydev->lock); + if (phydev->drv->link_change_notify) + phydev->drv->link_change_notify(phydev); + switch (phydev->state) { case PHY_DOWN: case PHY_STARTING: diff --git a/drivers/net/slip/slip.c b/drivers/net/slip/slip.c index ad4a94e9ff57..87526443841f 100644 --- a/drivers/net/slip/slip.c +++ b/drivers/net/slip/slip.c @@ -83,6 +83,7 @@ #include <linux/delay.h> #include <linux/init.h> #include <linux/slab.h> +#include <linux/workqueue.h> #include "slip.h" #ifdef CONFIG_INET #include <linux/ip.h> @@ -416,36 +417,46 @@ static void sl_encaps(struct slip *sl, unsigned char *icp, int len) #endif } -/* - * Called by the driver when there's room for more data. If we have - * more packets to send, we send them here. - */ -static void slip_write_wakeup(struct tty_struct *tty) +/* Write out any remaining transmit buffer. Scheduled when tty is writable */ +static void slip_transmit(struct work_struct *work) { + struct slip *sl = container_of(work, struct slip, tx_work); int actual; - struct slip *sl = tty->disc_data; + spin_lock_bh(&sl->lock); /* First make sure we're connected. */ - if (!sl || sl->magic != SLIP_MAGIC || !netif_running(sl->dev)) + if (!sl->tty || sl->magic != SLIP_MAGIC || !netif_running(sl->dev)) { + spin_unlock_bh(&sl->lock); return; + } - spin_lock_bh(&sl->lock); if (sl->xleft <= 0) { /* Now serial buffer is almost free & we can start * transmission of another packet */ sl->dev->stats.tx_packets++; - clear_bit(TTY_DO_WRITE_WAKEUP, &tty->flags); + clear_bit(TTY_DO_WRITE_WAKEUP, &sl->tty->flags); spin_unlock_bh(&sl->lock); sl_unlock(sl); return; } - actual = tty->ops->write(tty, sl->xhead, sl->xleft); + actual = sl->tty->ops->write(sl->tty, sl->xhead, sl->xleft); sl->xleft -= actual; sl->xhead += actual; spin_unlock_bh(&sl->lock); } +/* + * Called by the driver when there's room for more data. + * Schedule the transmit. + */ +static void slip_write_wakeup(struct tty_struct *tty) +{ + struct slip *sl = tty->disc_data; + + schedule_work(&sl->tx_work); +} + static void sl_tx_timeout(struct net_device *dev) { struct slip *sl = netdev_priv(dev); @@ -749,6 +760,7 @@ static struct slip *sl_alloc(dev_t line) sl->magic = SLIP_MAGIC; sl->dev = dev; spin_lock_init(&sl->lock); + INIT_WORK(&sl->tx_work, slip_transmit); sl->mode = SL_MODE_DEFAULT; #ifdef CONFIG_SLIP_SMART /* initialize timer_list struct */ @@ -872,8 +884,12 @@ static void slip_close(struct tty_struct *tty) if (!sl || sl->magic != SLIP_MAGIC || sl->tty != tty) return; + spin_lock_bh(&sl->lock); tty->disc_data = NULL; sl->tty = NULL; + spin_unlock_bh(&sl->lock); + + flush_work(&sl->tx_work); /* VSV = very important to remove timers */ #ifdef CONFIG_SLIP_SMART diff --git a/drivers/net/slip/slip.h b/drivers/net/slip/slip.h index 67673cf1266b..cf32aadf508f 100644 --- a/drivers/net/slip/slip.h +++ b/drivers/net/slip/slip.h @@ -53,6 +53,7 @@ struct slip { struct tty_struct *tty; /* ptr to TTY structure */ struct net_device *dev; /* easy for intr handling */ spinlock_t lock; + struct work_struct tx_work; /* Flushes transmit buffer */ #ifdef SL_INCLUDE_CSLIP struct slcompress *slcomp; /* for header compression */ diff --git a/drivers/net/usb/huawei_cdc_ncm.c b/drivers/net/usb/huawei_cdc_ncm.c index f9822bc75425..5d95a13dbe2a 100644 --- a/drivers/net/usb/huawei_cdc_ncm.c +++ b/drivers/net/usb/huawei_cdc_ncm.c @@ -84,12 +84,13 @@ static int huawei_cdc_ncm_bind(struct usbnet *usbnet_dev, ctx = drvstate->ctx; if (usbnet_dev->status) - /* CDC-WMC r1.1 requires wMaxCommand to be "at least 256 - * decimal (0x100)" + /* The wMaxCommand buffer must be big enough to hold + * any message from the modem. Experience has shown + * that some replies are more than 256 bytes long */ subdriver = usb_cdc_wdm_register(ctx->control, &usbnet_dev->status->desc, - 256, /* wMaxCommand */ + 1024, /* wMaxCommand */ huawei_cdc_ncm_wdm_manage_power); if (IS_ERR(subdriver)) { ret = PTR_ERR(subdriver); diff --git a/drivers/net/vmxnet3/vmxnet3_drv.c b/drivers/net/vmxnet3/vmxnet3_drv.c index 97394345e5dd..b76f7dcde0db 100644 --- a/drivers/net/vmxnet3/vmxnet3_drv.c +++ b/drivers/net/vmxnet3/vmxnet3_drv.c @@ -2589,8 +2589,8 @@ vmxnet3_open(struct net_device *netdev) for (i = 0; i < adapter->num_tx_queues; i++) spin_lock_init(&adapter->tx_queue[i].tx_lock); - err = vmxnet3_create_queues(adapter, VMXNET3_DEF_TX_RING_SIZE, - VMXNET3_DEF_RX_RING_SIZE, + err = vmxnet3_create_queues(adapter, adapter->tx_ring_size, + adapter->rx_ring_size, VMXNET3_DEF_RX_RING_SIZE); if (err) goto queue_err; @@ -2968,6 +2968,9 @@ vmxnet3_probe_device(struct pci_dev *pdev, adapter->netdev = netdev; adapter->pdev = pdev; + adapter->tx_ring_size = VMXNET3_DEF_TX_RING_SIZE; + adapter->rx_ring_size = VMXNET3_DEF_RX_RING_SIZE; + spin_lock_init(&adapter->cmd_lock); adapter->adapter_pa = dma_map_single(&adapter->pdev->dev, adapter, sizeof(struct vmxnet3_adapter), diff --git a/drivers/net/vmxnet3/vmxnet3_ethtool.c b/drivers/net/vmxnet3/vmxnet3_ethtool.c index 40c1c7b0d9e0..b725fd9e7803 100644 --- a/drivers/net/vmxnet3/vmxnet3_ethtool.c +++ b/drivers/net/vmxnet3/vmxnet3_ethtool.c @@ -449,8 +449,8 @@ vmxnet3_get_ringparam(struct net_device *netdev, param->rx_mini_max_pending = 0; param->rx_jumbo_max_pending = 0; - param->rx_pending = adapter->rx_queue[0].rx_ring[0].size; - param->tx_pending = adapter->tx_queue[0].tx_ring.size; + param->rx_pending = adapter->rx_ring_size; + param->tx_pending = adapter->tx_ring_size; param->rx_mini_pending = 0; param->rx_jumbo_pending = 0; } @@ -529,9 +529,11 @@ vmxnet3_set_ringparam(struct net_device *netdev, * size */ netdev_err(netdev, "failed to apply new sizes, " "try the default ones\n"); + new_rx_ring_size = VMXNET3_DEF_RX_RING_SIZE; + new_tx_ring_size = VMXNET3_DEF_TX_RING_SIZE; err = vmxnet3_create_queues(adapter, - VMXNET3_DEF_TX_RING_SIZE, - VMXNET3_DEF_RX_RING_SIZE, + new_tx_ring_size, + new_rx_ring_size, VMXNET3_DEF_RX_RING_SIZE); if (err) { netdev_err(netdev, "failed to create queues " @@ -545,6 +547,8 @@ vmxnet3_set_ringparam(struct net_device *netdev, netdev_err(netdev, "failed to re-activate, error %d." " Closing it\n", err); } + adapter->tx_ring_size = new_tx_ring_size; + adapter->rx_ring_size = new_rx_ring_size; out: clear_bit(VMXNET3_STATE_BIT_RESETTING, &adapter->state); diff --git a/drivers/net/vmxnet3/vmxnet3_int.h b/drivers/net/vmxnet3/vmxnet3_int.h index 190569d02450..29ee77f2c97f 100644 --- a/drivers/net/vmxnet3/vmxnet3_int.h +++ b/drivers/net/vmxnet3/vmxnet3_int.h @@ -349,6 +349,11 @@ struct vmxnet3_adapter { u32 link_speed; /* in mbps */ u64 tx_timeout_count; + + /* Ring sizes */ + u32 tx_ring_size; + u32 rx_ring_size; + struct work_struct work; unsigned long state; /* VMXNET3_STATE_BIT_xxx */ diff --git a/drivers/net/wireless/b43/Kconfig b/drivers/net/wireless/b43/Kconfig index e3f67b8d3f80..40fd9b7b1426 100644 --- a/drivers/net/wireless/b43/Kconfig +++ b/drivers/net/wireless/b43/Kconfig @@ -36,7 +36,7 @@ config B43_SSB choice prompt "Supported bus types" depends on B43 - default B43_BCMA_AND_SSB + default B43_BUSES_BCMA_AND_SSB config B43_BUSES_BCMA_AND_SSB bool "BCMA and SSB" diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c index 32538ac5f7e4..0d6a0bb1f876 100644 --- a/drivers/net/wireless/b43/main.c +++ b/drivers/net/wireless/b43/main.c @@ -5221,6 +5221,7 @@ static int b43_wireless_core_attach(struct b43_wldev *dev) /* We don't support 5 GHz on some PHYs yet */ switch (dev->phy.type) { case B43_PHYTYPE_A: + case B43_PHYTYPE_G: case B43_PHYTYPE_N: case B43_PHYTYPE_LP: case B43_PHYTYPE_HT: diff --git a/drivers/net/wireless/b43/xmit.c b/drivers/net/wireless/b43/xmit.c index 4f38f19b8e3d..6e6ef3fc2247 100644 --- a/drivers/net/wireless/b43/xmit.c +++ b/drivers/net/wireless/b43/xmit.c @@ -811,9 +811,13 @@ void b43_rx(struct b43_wldev *dev, struct sk_buff *skb, const void *_rxhdr) break; case B43_PHYTYPE_G: status.band = IEEE80211_BAND_2GHZ; - /* chanid is the radio channel cookie value as used - * to tune the radio. */ - status.freq = chanid + 2400; + /* Somewhere between 478.104 and 508.1084 firmware for G-PHY + * has been modified to be compatible with N-PHY and others. + */ + if (dev->fw.rev >= 508) + status.freq = ieee80211_channel_to_frequency(chanid, status.band); + else + status.freq = chanid + 2400; break; case B43_PHYTYPE_N: case B43_PHYTYPE_LP: diff --git a/drivers/net/wireless/mwifiex/pcie.c b/drivers/net/wireless/mwifiex/pcie.c index 574d4b597468..2cc9b6fca490 100644 --- a/drivers/net/wireless/mwifiex/pcie.c +++ b/drivers/net/wireless/mwifiex/pcie.c @@ -50,7 +50,7 @@ mwifiex_map_pci_memory(struct mwifiex_adapter *adapter, struct sk_buff *skb, return -1; } mapping.len = size; - memcpy(skb->cb, &mapping, sizeof(mapping)); + mwifiex_store_mapping(skb, &mapping); return 0; } @@ -60,7 +60,7 @@ static void mwifiex_unmap_pci_memory(struct mwifiex_adapter *adapter, struct pcie_service_card *card = adapter->card; struct mwifiex_dma_mapping mapping; - MWIFIEX_SKB_PACB(skb, &mapping); + mwifiex_get_mapping(skb, &mapping); pci_unmap_single(card->dev, mapping.addr, mapping.len, flags); } diff --git a/drivers/net/wireless/mwifiex/util.h b/drivers/net/wireless/mwifiex/util.h index ddae57021397..caadb3737b9e 100644 --- a/drivers/net/wireless/mwifiex/util.h +++ b/drivers/net/wireless/mwifiex/util.h @@ -20,32 +20,55 @@ #ifndef _MWIFIEX_UTIL_H_ #define _MWIFIEX_UTIL_H_ +struct mwifiex_dma_mapping { + dma_addr_t addr; + size_t len; +}; + +struct mwifiex_cb { + struct mwifiex_dma_mapping dma_mapping; + union { + struct mwifiex_rxinfo rx_info; + struct mwifiex_txinfo tx_info; + }; +}; + static inline struct mwifiex_rxinfo *MWIFIEX_SKB_RXCB(struct sk_buff *skb) { - return (struct mwifiex_rxinfo *)(skb->cb + sizeof(dma_addr_t)); + struct mwifiex_cb *cb = (struct mwifiex_cb *)skb->cb; + + BUILD_BUG_ON(sizeof(struct mwifiex_cb) > sizeof(skb->cb)); + return &cb->rx_info; } static inline struct mwifiex_txinfo *MWIFIEX_SKB_TXCB(struct sk_buff *skb) { - return (struct mwifiex_txinfo *)(skb->cb + sizeof(dma_addr_t)); + struct mwifiex_cb *cb = (struct mwifiex_cb *)skb->cb; + + return &cb->tx_info; } -struct mwifiex_dma_mapping { - dma_addr_t addr; - size_t len; -}; +static inline void mwifiex_store_mapping(struct sk_buff *skb, + struct mwifiex_dma_mapping *mapping) +{ + struct mwifiex_cb *cb = (struct mwifiex_cb *)skb->cb; + + memcpy(&cb->dma_mapping, mapping, sizeof(*mapping)); +} -static inline void MWIFIEX_SKB_PACB(struct sk_buff *skb, - struct mwifiex_dma_mapping *mapping) +static inline void mwifiex_get_mapping(struct sk_buff *skb, + struct mwifiex_dma_mapping *mapping) { - memcpy(mapping, skb->cb, sizeof(*mapping)); + struct mwifiex_cb *cb = (struct mwifiex_cb *)skb->cb; + + memcpy(mapping, &cb->dma_mapping, sizeof(*mapping)); } static inline dma_addr_t MWIFIEX_SKB_DMA_ADDR(struct sk_buff *skb) { struct mwifiex_dma_mapping mapping; - MWIFIEX_SKB_PACB(skb, &mapping); + mwifiex_get_mapping(skb, &mapping); return mapping.addr; } diff --git a/drivers/net/wireless/rt2x00/rt2500pci.c b/drivers/net/wireless/rt2x00/rt2500pci.c index 2f1cd929c6f6..a511cccc9f01 100644 --- a/drivers/net/wireless/rt2x00/rt2500pci.c +++ b/drivers/net/wireless/rt2x00/rt2500pci.c @@ -1681,8 +1681,13 @@ static int rt2500pci_init_eeprom(struct rt2x00_dev *rt2x00dev) /* * Detect if this device has an hardware controlled radio. */ - if (rt2x00_get_field16(eeprom, EEPROM_ANTENNA_HARDWARE_RADIO)) + if (rt2x00_get_field16(eeprom, EEPROM_ANTENNA_HARDWARE_RADIO)) { __set_bit(CAPABILITY_HW_BUTTON, &rt2x00dev->cap_flags); + /* + * On this device RFKILL initialized during probe does not work. + */ + __set_bit(REQUIRE_DELAYED_RFKILL, &rt2x00dev->cap_flags); + } /* * Check if the BBP tuning should be enabled. diff --git a/drivers/net/wireless/rt2x00/rt2800usb.c b/drivers/net/wireless/rt2x00/rt2800usb.c index a49c3d73ea2c..e11dab2216c6 100644 --- a/drivers/net/wireless/rt2x00/rt2800usb.c +++ b/drivers/net/wireless/rt2x00/rt2800usb.c @@ -229,6 +229,27 @@ static enum hrtimer_restart rt2800usb_tx_sta_fifo_timeout(struct hrtimer *timer) /* * Firmware functions */ +static int rt2800usb_autorun_detect(struct rt2x00_dev *rt2x00dev) +{ + __le32 reg; + u32 fw_mode; + + /* cannot use rt2x00usb_register_read here as it uses different + * mode (MULTI_READ vs. DEVICE_MODE) and does not pass the + * magic value USB_MODE_AUTORUN (0x11) to the device, thus the + * returned value would be invalid. + */ + rt2x00usb_vendor_request(rt2x00dev, USB_DEVICE_MODE, + USB_VENDOR_REQUEST_IN, 0, USB_MODE_AUTORUN, + ®, sizeof(reg), REGISTER_TIMEOUT_FIRMWARE); + fw_mode = le32_to_cpu(reg); + + if ((fw_mode & 0x00000003) == 2) + return 1; + + return 0; +} + static char *rt2800usb_get_firmware_name(struct rt2x00_dev *rt2x00dev) { return FIRMWARE_RT2870; @@ -257,8 +278,13 @@ static int rt2800usb_write_firmware(struct rt2x00_dev *rt2x00dev, /* * Write firmware to device. */ - rt2x00usb_register_multiwrite(rt2x00dev, FIRMWARE_IMAGE_BASE, - data + offset, length); + if (rt2800usb_autorun_detect(rt2x00dev)) { + rt2x00_info(rt2x00dev, + "Firmware loading not required - NIC in AutoRun mode\n"); + } else { + rt2x00usb_register_multiwrite(rt2x00dev, FIRMWARE_IMAGE_BASE, + data + offset, length); + } rt2x00usb_register_write(rt2x00dev, H2M_MAILBOX_CID, ~0); rt2x00usb_register_write(rt2x00dev, H2M_MAILBOX_STATUS, ~0); @@ -735,11 +761,18 @@ static void rt2800usb_fill_rxdone(struct queue_entry *entry, /* * Device probe functions. */ +static int rt2800usb_efuse_detect(struct rt2x00_dev *rt2x00dev) +{ + if (rt2800usb_autorun_detect(rt2x00dev)) + return 1; + return rt2800_efuse_detect(rt2x00dev); +} + static int rt2800usb_read_eeprom(struct rt2x00_dev *rt2x00dev) { int retval; - if (rt2800_efuse_detect(rt2x00dev)) + if (rt2800usb_efuse_detect(rt2x00dev)) retval = rt2800_read_eeprom_efuse(rt2x00dev); else retval = rt2x00usb_eeprom_read(rt2x00dev, rt2x00dev->eeprom, diff --git a/drivers/net/wireless/rt2x00/rt2x00.h b/drivers/net/wireless/rt2x00/rt2x00.h index 010b76505243..d13f25cd70d5 100644 --- a/drivers/net/wireless/rt2x00/rt2x00.h +++ b/drivers/net/wireless/rt2x00/rt2x00.h @@ -693,6 +693,7 @@ enum rt2x00_capability_flags { REQUIRE_SW_SEQNO, REQUIRE_HT_TX_DESC, REQUIRE_PS_AUTOWAKE, + REQUIRE_DELAYED_RFKILL, /* * Capabilities diff --git a/drivers/net/wireless/rt2x00/rt2x00dev.c b/drivers/net/wireless/rt2x00/rt2x00dev.c index 2bde6729f5e6..4fa43a2eeb73 100644 --- a/drivers/net/wireless/rt2x00/rt2x00dev.c +++ b/drivers/net/wireless/rt2x00/rt2x00dev.c @@ -1126,9 +1126,10 @@ static void rt2x00lib_uninitialize(struct rt2x00_dev *rt2x00dev) return; /* - * Unregister extra components. + * Stop rfkill polling. */ - rt2x00rfkill_unregister(rt2x00dev); + if (test_bit(REQUIRE_DELAYED_RFKILL, &rt2x00dev->cap_flags)) + rt2x00rfkill_unregister(rt2x00dev); /* * Allow the HW to uninitialize. @@ -1166,6 +1167,12 @@ static int rt2x00lib_initialize(struct rt2x00_dev *rt2x00dev) set_bit(DEVICE_STATE_INITIALIZED, &rt2x00dev->flags); + /* + * Start rfkill polling. + */ + if (test_bit(REQUIRE_DELAYED_RFKILL, &rt2x00dev->cap_flags)) + rt2x00rfkill_register(rt2x00dev); + return 0; } @@ -1375,7 +1382,12 @@ int rt2x00lib_probe_dev(struct rt2x00_dev *rt2x00dev) rt2x00link_register(rt2x00dev); rt2x00leds_register(rt2x00dev); rt2x00debug_register(rt2x00dev); - rt2x00rfkill_register(rt2x00dev); + + /* + * Start rfkill polling. + */ + if (!test_bit(REQUIRE_DELAYED_RFKILL, &rt2x00dev->cap_flags)) + rt2x00rfkill_register(rt2x00dev); return 0; @@ -1391,6 +1403,12 @@ void rt2x00lib_remove_dev(struct rt2x00_dev *rt2x00dev) clear_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags); /* + * Stop rfkill polling. + */ + if (!test_bit(REQUIRE_DELAYED_RFKILL, &rt2x00dev->cap_flags)) + rt2x00rfkill_unregister(rt2x00dev); + + /* * Disable radio. */ rt2x00lib_disable_radio(rt2x00dev); diff --git a/drivers/net/wireless/rt2x00/rt2x00mac.c b/drivers/net/wireless/rt2x00/rt2x00mac.c index 212ac4842c16..004dff9b962d 100644 --- a/drivers/net/wireless/rt2x00/rt2x00mac.c +++ b/drivers/net/wireless/rt2x00/rt2x00mac.c @@ -487,6 +487,8 @@ int rt2x00mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, crypto.cipher = rt2x00crypto_key_to_cipher(key); if (crypto.cipher == CIPHER_NONE) return -EOPNOTSUPP; + if (crypto.cipher == CIPHER_TKIP && rt2x00_is_usb(rt2x00dev)) + return -EOPNOTSUPP; crypto.cmd = cmd; diff --git a/drivers/net/wireless/rt2x00/rt2x00usb.h b/drivers/net/wireless/rt2x00/rt2x00usb.h index e7bcf62347d5..831b65f93feb 100644 --- a/drivers/net/wireless/rt2x00/rt2x00usb.h +++ b/drivers/net/wireless/rt2x00/rt2x00usb.h @@ -93,6 +93,7 @@ enum rt2x00usb_mode_offset { USB_MODE_SLEEP = 7, /* RT73USB */ USB_MODE_FIRMWARE = 8, /* RT73USB */ USB_MODE_WAKEUP = 9, /* RT73USB */ + USB_MODE_AUTORUN = 17, /* RT2800USB */ }; /** diff --git a/drivers/net/xen-netback/common.h b/drivers/net/xen-netback/common.h index 4dd7c4a1923b..2532ce85d718 100644 --- a/drivers/net/xen-netback/common.h +++ b/drivers/net/xen-netback/common.h @@ -222,6 +222,7 @@ struct xenvif { /* Queues */ struct xenvif_queue *queues; + unsigned int num_queues; /* active queues, resource allocated */ /* Miscellaneous private stuff. */ struct net_device *dev; diff --git a/drivers/net/xen-netback/interface.c b/drivers/net/xen-netback/interface.c index 852da34b8961..9e97c7ca0ddd 100644 --- a/drivers/net/xen-netback/interface.c +++ b/drivers/net/xen-netback/interface.c @@ -137,32 +137,11 @@ static void xenvif_wake_queue_callback(unsigned long data) } } -static u16 xenvif_select_queue(struct net_device *dev, struct sk_buff *skb, - void *accel_priv, select_queue_fallback_t fallback) -{ - unsigned int num_queues = dev->real_num_tx_queues; - u32 hash; - u16 queue_index; - - /* First, check if there is only one queue to optimise the - * single-queue or old frontend scenario. - */ - if (num_queues == 1) { - queue_index = 0; - } else { - /* Use skb_get_hash to obtain an L4 hash if available */ - hash = skb_get_hash(skb); - queue_index = hash % num_queues; - } - - return queue_index; -} - static int xenvif_start_xmit(struct sk_buff *skb, struct net_device *dev) { struct xenvif *vif = netdev_priv(dev); struct xenvif_queue *queue = NULL; - unsigned int num_queues = dev->real_num_tx_queues; + unsigned int num_queues = vif->num_queues; u16 index; int min_slots_needed; @@ -225,7 +204,7 @@ static struct net_device_stats *xenvif_get_stats(struct net_device *dev) { struct xenvif *vif = netdev_priv(dev); struct xenvif_queue *queue = NULL; - unsigned int num_queues = dev->real_num_tx_queues; + unsigned int num_queues = vif->num_queues; unsigned long rx_bytes = 0; unsigned long rx_packets = 0; unsigned long tx_bytes = 0; @@ -256,7 +235,7 @@ out: static void xenvif_up(struct xenvif *vif) { struct xenvif_queue *queue = NULL; - unsigned int num_queues = vif->dev->real_num_tx_queues; + unsigned int num_queues = vif->num_queues; unsigned int queue_index; for (queue_index = 0; queue_index < num_queues; ++queue_index) { @@ -272,7 +251,7 @@ static void xenvif_up(struct xenvif *vif) static void xenvif_down(struct xenvif *vif) { struct xenvif_queue *queue = NULL; - unsigned int num_queues = vif->dev->real_num_tx_queues; + unsigned int num_queues = vif->num_queues; unsigned int queue_index; for (queue_index = 0; queue_index < num_queues; ++queue_index) { @@ -379,7 +358,7 @@ static void xenvif_get_ethtool_stats(struct net_device *dev, struct ethtool_stats *stats, u64 * data) { struct xenvif *vif = netdev_priv(dev); - unsigned int num_queues = dev->real_num_tx_queues; + unsigned int num_queues = vif->num_queues; int i; unsigned int queue_index; struct xenvif_stats *vif_stats; @@ -424,7 +403,6 @@ static const struct net_device_ops xenvif_netdev_ops = { .ndo_fix_features = xenvif_fix_features, .ndo_set_mac_address = eth_mac_addr, .ndo_validate_addr = eth_validate_addr, - .ndo_select_queue = xenvif_select_queue, }; struct xenvif *xenvif_alloc(struct device *parent, domid_t domid, @@ -438,7 +416,7 @@ struct xenvif *xenvif_alloc(struct device *parent, domid_t domid, snprintf(name, IFNAMSIZ - 1, "vif%u.%u", domid, handle); /* Allocate a netdev with the max. supported number of queues. * When the guest selects the desired number, it will be updated - * via netif_set_real_num_tx_queues(). + * via netif_set_real_num_*_queues(). */ dev = alloc_netdev_mq(sizeof(struct xenvif), name, ether_setup, xenvif_max_queues); @@ -458,11 +436,9 @@ struct xenvif *xenvif_alloc(struct device *parent, domid_t domid, vif->dev = dev; vif->disabled = false; - /* Start out with no queues. The call below does not require - * rtnl_lock() as it happens before register_netdev(). - */ + /* Start out with no queues. */ vif->queues = NULL; - netif_set_real_num_tx_queues(dev, 0); + vif->num_queues = 0; dev->netdev_ops = &xenvif_netdev_ops; dev->hw_features = NETIF_F_SG | @@ -677,7 +653,7 @@ static void xenvif_wait_unmap_timeout(struct xenvif_queue *queue, void xenvif_disconnect(struct xenvif *vif) { struct xenvif_queue *queue = NULL; - unsigned int num_queues = vif->dev->real_num_tx_queues; + unsigned int num_queues = vif->num_queues; unsigned int queue_index; if (netif_carrier_ok(vif->dev)) @@ -724,7 +700,7 @@ void xenvif_deinit_queue(struct xenvif_queue *queue) void xenvif_free(struct xenvif *vif) { struct xenvif_queue *queue = NULL; - unsigned int num_queues = vif->dev->real_num_tx_queues; + unsigned int num_queues = vif->num_queues; unsigned int queue_index; /* Here we want to avoid timeout messages if an skb can be legitimately * stuck somewhere else. Realistically this could be an another vif's @@ -748,12 +724,9 @@ void xenvif_free(struct xenvif *vif) xenvif_deinit_queue(queue); } - /* Free the array of queues. The call below does not require - * rtnl_lock() because it happens after unregister_netdev(). - */ - netif_set_real_num_tx_queues(vif->dev, 0); vfree(vif->queues); vif->queues = NULL; + vif->num_queues = 0; free_netdev(vif->dev); diff --git a/drivers/net/xen-netback/xenbus.c b/drivers/net/xen-netback/xenbus.c index 96c63dc2509e..3d85acd84bad 100644 --- a/drivers/net/xen-netback/xenbus.c +++ b/drivers/net/xen-netback/xenbus.c @@ -527,9 +527,7 @@ static void connect(struct backend_info *be) /* Use the number of queues requested by the frontend */ be->vif->queues = vzalloc(requested_num_queues * sizeof(struct xenvif_queue)); - rtnl_lock(); - netif_set_real_num_tx_queues(be->vif->dev, requested_num_queues); - rtnl_unlock(); + be->vif->num_queues = requested_num_queues; for (queue_index = 0; queue_index < requested_num_queues; ++queue_index) { queue = &be->vif->queues[queue_index]; @@ -546,9 +544,7 @@ static void connect(struct backend_info *be) * earlier queues can be destroyed using the regular * disconnect logic. */ - rtnl_lock(); - netif_set_real_num_tx_queues(be->vif->dev, queue_index); - rtnl_unlock(); + be->vif->num_queues = queue_index; goto err; } @@ -561,13 +557,19 @@ static void connect(struct backend_info *be) * and also clean up any previously initialised queues. */ xenvif_deinit_queue(queue); - rtnl_lock(); - netif_set_real_num_tx_queues(be->vif->dev, queue_index); - rtnl_unlock(); + be->vif->num_queues = queue_index; goto err; } } + /* Initialisation completed, tell core driver the number of + * active queues. + */ + rtnl_lock(); + netif_set_real_num_tx_queues(be->vif->dev, requested_num_queues); + netif_set_real_num_rx_queues(be->vif->dev, requested_num_queues); + rtnl_unlock(); + xenvif_carrier_on(be->vif); unregister_hotplug_status_watch(be); @@ -582,13 +584,11 @@ static void connect(struct backend_info *be) return; err: - if (be->vif->dev->real_num_tx_queues > 0) + if (be->vif->num_queues > 0) xenvif_disconnect(be->vif); /* Clean up existing queues */ vfree(be->vif->queues); be->vif->queues = NULL; - rtnl_lock(); - netif_set_real_num_tx_queues(be->vif->dev, 0); - rtnl_unlock(); + be->vif->num_queues = 0; return; } @@ -596,7 +596,7 @@ err: static int connect_rings(struct backend_info *be, struct xenvif_queue *queue) { struct xenbus_device *dev = be->dev; - unsigned int num_queues = queue->vif->dev->real_num_tx_queues; + unsigned int num_queues = queue->vif->num_queues; unsigned long tx_ring_ref, rx_ring_ref; unsigned int tx_evtchn, rx_evtchn; int err; diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c index 5a7872ac3566..2ccb4a02368b 100644 --- a/drivers/net/xen-netfront.c +++ b/drivers/net/xen-netfront.c @@ -1287,7 +1287,7 @@ static irqreturn_t xennet_rx_interrupt(int irq, void *dev_id) if (likely(netif_carrier_ok(dev) && RING_HAS_UNCONSUMED_RESPONSES(&queue->rx))) - napi_schedule(&queue->napi); + napi_schedule(&queue->napi); return IRQ_HANDLED; } @@ -1437,10 +1437,11 @@ static void xennet_end_access(int ref, void *page) static void xennet_disconnect_backend(struct netfront_info *info) { unsigned int i = 0; - struct netfront_queue *queue = NULL; unsigned int num_queues = info->netdev->real_num_tx_queues; for (i = 0; i < num_queues; ++i) { + struct netfront_queue *queue = &info->queues[i]; + /* Stop old i/f to prevent errors whilst we rebuild the state. */ spin_lock_bh(&queue->rx_lock); spin_lock_irq(&queue->tx_lock); @@ -1698,8 +1699,6 @@ static int xennet_init_queue(struct netfront_queue *queue) goto exit_free_tx; } - netif_napi_add(queue->info->netdev, &queue->napi, xennet_poll, 64); - return 0; exit_free_tx: @@ -1790,6 +1789,70 @@ error: return err; } +static void xennet_destroy_queues(struct netfront_info *info) +{ + unsigned int i; + + rtnl_lock(); + + for (i = 0; i < info->netdev->real_num_tx_queues; i++) { + struct netfront_queue *queue = &info->queues[i]; + + if (netif_running(info->netdev)) + napi_disable(&queue->napi); + netif_napi_del(&queue->napi); + } + + rtnl_unlock(); + + kfree(info->queues); + info->queues = NULL; +} + +static int xennet_create_queues(struct netfront_info *info, + unsigned int num_queues) +{ + unsigned int i; + int ret; + + info->queues = kcalloc(num_queues, sizeof(struct netfront_queue), + GFP_KERNEL); + if (!info->queues) + return -ENOMEM; + + rtnl_lock(); + + for (i = 0; i < num_queues; i++) { + struct netfront_queue *queue = &info->queues[i]; + + queue->id = i; + queue->info = info; + + ret = xennet_init_queue(queue); + if (ret < 0) { + dev_warn(&info->netdev->dev, "only created %d queues\n", + num_queues); + num_queues = i; + break; + } + + netif_napi_add(queue->info->netdev, &queue->napi, + xennet_poll, 64); + if (netif_running(info->netdev)) + napi_enable(&queue->napi); + } + + netif_set_real_num_tx_queues(info->netdev, num_queues); + + rtnl_unlock(); + + if (num_queues == 0) { + dev_err(&info->netdev->dev, "no queues\n"); + return -EINVAL; + } + return 0; +} + /* Common code used when first setting up, and when resuming. */ static int talk_to_netback(struct xenbus_device *dev, struct netfront_info *info) @@ -1826,42 +1889,20 @@ static int talk_to_netback(struct xenbus_device *dev, goto out; } - /* Allocate array of queues */ - info->queues = kcalloc(num_queues, sizeof(struct netfront_queue), GFP_KERNEL); - if (!info->queues) { - err = -ENOMEM; - goto out; - } - rtnl_lock(); - netif_set_real_num_tx_queues(info->netdev, num_queues); - rtnl_unlock(); + if (info->queues) + xennet_destroy_queues(info); + + err = xennet_create_queues(info, num_queues); + if (err < 0) + goto destroy_ring; /* Create shared ring, alloc event channel -- for each queue */ for (i = 0; i < num_queues; ++i) { queue = &info->queues[i]; - queue->id = i; - queue->info = info; - err = xennet_init_queue(queue); - if (err) { - /* xennet_init_queue() cleans up after itself on failure, - * but we still have to clean up any previously initialised - * queues. If i > 0, set num_queues to i, then goto - * destroy_ring, which calls xennet_disconnect_backend() - * to tidy up. - */ - if (i > 0) { - rtnl_lock(); - netif_set_real_num_tx_queues(info->netdev, i); - rtnl_unlock(); - goto destroy_ring; - } else { - goto out; - } - } err = setup_netfront(dev, queue, feature_split_evtchn); if (err) { - /* As for xennet_init_queue(), setup_netfront() will tidy - * up the current queue on error, but we need to clean up + /* setup_netfront() will tidy up the current + * queue on error, but we need to clean up * those already allocated. */ if (i > 0) { diff --git a/drivers/of/of_mdio.c b/drivers/of/of_mdio.c index fb4a59830648..a3bf2122a8d5 100644 --- a/drivers/of/of_mdio.c +++ b/drivers/of/of_mdio.c @@ -323,11 +323,13 @@ int of_phy_register_fixed_link(struct device_node *np) fixed_link_node = of_get_child_by_name(np, "fixed-link"); if (fixed_link_node) { status.link = 1; - status.duplex = of_property_read_bool(np, "full-duplex"); + status.duplex = of_property_read_bool(fixed_link_node, + "full-duplex"); if (of_property_read_u32(fixed_link_node, "speed", &status.speed)) return -EINVAL; - status.pause = of_property_read_bool(np, "pause"); - status.asym_pause = of_property_read_bool(np, "asym-pause"); + status.pause = of_property_read_bool(fixed_link_node, "pause"); + status.asym_pause = of_property_read_bool(fixed_link_node, + "asym-pause"); of_node_put(fixed_link_node); return fixed_phy_register(PHY_POLL, &status, np); } diff --git a/drivers/ptp/Kconfig b/drivers/ptp/Kconfig index 6aea373547f6..ee3de3421f2d 100644 --- a/drivers/ptp/Kconfig +++ b/drivers/ptp/Kconfig @@ -74,7 +74,7 @@ config DP83640_PHY config PTP_1588_CLOCK_PCH tristate "Intel PCH EG20T as PTP clock" - depends on X86 || COMPILE_TEST + depends on X86_32 || COMPILE_TEST depends on HAS_IOMEM && NET select PTP_1588_CLOCK help diff --git a/drivers/regulator/bcm590xx-regulator.c b/drivers/regulator/bcm590xx-regulator.c index 57544e254a78..58ece59367ae 100644 --- a/drivers/regulator/bcm590xx-regulator.c +++ b/drivers/regulator/bcm590xx-regulator.c @@ -119,6 +119,10 @@ static const unsigned int ldo_c_table[] = { 2900000, 3000000, 3300000, }; +static const unsigned int ldo_vbus[] = { + 5000000, +}; + /* DCDC group CSR: supported voltages in microvolts */ static const struct regulator_linear_range dcdc_csr_ranges[] = { REGULATOR_LINEAR_RANGE(860000, 2, 50, 10000), @@ -192,6 +196,7 @@ static struct bcm590xx_info bcm590xx_regs[] = { BCM590XX_REG_TABLE(gpldo4, ldo_a_table), BCM590XX_REG_TABLE(gpldo5, ldo_a_table), BCM590XX_REG_TABLE(gpldo6, ldo_a_table), + BCM590XX_REG_TABLE(vbus, ldo_vbus), }; struct bcm590xx_reg { diff --git a/drivers/regulator/palmas-regulator.c b/drivers/regulator/palmas-regulator.c index b982f0ff4e01..93b4ad842901 100644 --- a/drivers/regulator/palmas-regulator.c +++ b/drivers/regulator/palmas-regulator.c @@ -325,6 +325,10 @@ static int palmas_set_mode_smps(struct regulator_dev *dev, unsigned int mode) if (rail_enable) palmas_smps_write(pmic->palmas, palmas_regs_info[id].ctrl_addr, reg); + + /* Switch the enable value to ensure this is used for enable */ + pmic->desc[id].enable_val = pmic->current_reg_mode[id]; + return 0; } @@ -964,6 +968,14 @@ static int palmas_regulators_probe(struct platform_device *pdev) return ret; pmic->current_reg_mode[id] = reg & PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK; + + pmic->desc[id].enable_reg = + PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE, + palmas_regs_info[id].ctrl_addr); + pmic->desc[id].enable_mask = + PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK; + /* set_mode overrides this value */ + pmic->desc[id].enable_val = SMPS_CTRL_MODE_ON; } pmic->desc[id].type = REGULATOR_VOLTAGE; diff --git a/drivers/regulator/tps65218-regulator.c b/drivers/regulator/tps65218-regulator.c index 69b4b7750410..9effe48c605e 100644 --- a/drivers/regulator/tps65218-regulator.c +++ b/drivers/regulator/tps65218-regulator.c @@ -209,7 +209,7 @@ static const struct regulator_desc regulators[] = { 1, -1, -1, TPS65218_REG_ENABLE1, TPS65218_ENABLE1_DC6_EN, NULL, NULL, 0, 0), TPS65218_REGULATOR("LDO1", TPS65218_LDO_1, tps65218_ldo1_dcdc34_ops, 64, - TPS65218_REG_CONTROL_DCDC4, + TPS65218_REG_CONTROL_LDO1, TPS65218_CONTROL_LDO1_MASK, TPS65218_REG_ENABLE2, TPS65218_ENABLE2_LDO1_EN, NULL, ldo1_dcdc3_ranges, 2, 0), @@ -240,6 +240,7 @@ static int tps65218_regulator_probe(struct platform_device *pdev) config.init_data = init_data; config.driver_data = tps; config.regmap = tps->regmap; + config.of_node = pdev->dev.of_node; rdev = devm_regulator_register(&pdev->dev, ®ulators[id], &config); if (IS_ERR(rdev)) { diff --git a/drivers/spi/spi-pxa2xx.c b/drivers/spi/spi-pxa2xx.c index a98df7eeb42d..fe792106bdc5 100644 --- a/drivers/spi/spi-pxa2xx.c +++ b/drivers/spi/spi-pxa2xx.c @@ -118,6 +118,7 @@ static void lpss_ssp_setup(struct driver_data *drv_data) */ orig = readl(drv_data->ioaddr + offset + SPI_CS_CONTROL); + /* Test SPI_CS_CONTROL_SW_MODE bit enabling */ value = orig | SPI_CS_CONTROL_SW_MODE; writel(value, drv_data->ioaddr + offset + SPI_CS_CONTROL); value = readl(drv_data->ioaddr + offset + SPI_CS_CONTROL); @@ -126,10 +127,13 @@ static void lpss_ssp_setup(struct driver_data *drv_data) goto detection_done; } - value &= ~SPI_CS_CONTROL_SW_MODE; + orig = readl(drv_data->ioaddr + offset + SPI_CS_CONTROL); + + /* Test SPI_CS_CONTROL_SW_MODE bit disabling */ + value = orig & ~SPI_CS_CONTROL_SW_MODE; writel(value, drv_data->ioaddr + offset + SPI_CS_CONTROL); value = readl(drv_data->ioaddr + offset + SPI_CS_CONTROL); - if (value != orig) { + if (value != (orig & ~SPI_CS_CONTROL_SW_MODE)) { offset = 0x800; goto detection_done; } diff --git a/drivers/spi/spi-qup.c b/drivers/spi/spi-qup.c index fc1de86d3c8a..c08da380cb23 100644 --- a/drivers/spi/spi-qup.c +++ b/drivers/spi/spi-qup.c @@ -424,31 +424,6 @@ static int spi_qup_io_config(struct spi_device *spi, struct spi_transfer *xfer) return 0; } -static void spi_qup_set_cs(struct spi_device *spi, bool enable) -{ - struct spi_qup *controller = spi_master_get_devdata(spi->master); - - u32 iocontol, mask; - - iocontol = readl_relaxed(controller->base + SPI_IO_CONTROL); - - /* Disable auto CS toggle and use manual */ - iocontol &= ~SPI_IO_C_MX_CS_MODE; - iocontol |= SPI_IO_C_FORCE_CS; - - iocontol &= ~SPI_IO_C_CS_SELECT_MASK; - iocontol |= SPI_IO_C_CS_SELECT(spi->chip_select); - - mask = SPI_IO_C_CS_N_POLARITY_0 << spi->chip_select; - - if (enable) - iocontol |= mask; - else - iocontol &= ~mask; - - writel_relaxed(iocontol, controller->base + SPI_IO_CONTROL); -} - static int spi_qup_transfer_one(struct spi_master *master, struct spi_device *spi, struct spi_transfer *xfer) @@ -571,12 +546,16 @@ static int spi_qup_probe(struct platform_device *pdev) return -ENOMEM; } + /* use num-cs unless not present or out of range */ + if (of_property_read_u16(dev->of_node, "num-cs", + &master->num_chipselect) || + (master->num_chipselect > SPI_NUM_CHIPSELECTS)) + master->num_chipselect = SPI_NUM_CHIPSELECTS; + master->bus_num = pdev->id; master->mode_bits = SPI_CPOL | SPI_CPHA | SPI_CS_HIGH | SPI_LOOP; - master->num_chipselect = SPI_NUM_CHIPSELECTS; master->bits_per_word_mask = SPI_BPW_RANGE_MASK(4, 32); master->max_speed_hz = max_freq; - master->set_cs = spi_qup_set_cs; master->transfer_one = spi_qup_transfer_one; master->dev.of_node = pdev->dev.of_node; master->auto_runtime_pm = true; @@ -640,16 +619,19 @@ static int spi_qup_probe(struct platform_device *pdev) if (ret) goto error; - ret = devm_spi_register_master(dev, master); - if (ret) - goto error; - pm_runtime_set_autosuspend_delay(dev, MSEC_PER_SEC); pm_runtime_use_autosuspend(dev); pm_runtime_set_active(dev); pm_runtime_enable(dev); + + ret = devm_spi_register_master(dev, master); + if (ret) + goto disable_pm; + return 0; +disable_pm: + pm_runtime_disable(&pdev->dev); error: clk_disable_unprepare(cclk); clk_disable_unprepare(iclk); diff --git a/drivers/spi/spi-sh-sci.c b/drivers/spi/spi-sh-sci.c index 1f56ef651d1a..b83dd733684c 100644 --- a/drivers/spi/spi-sh-sci.c +++ b/drivers/spi/spi-sh-sci.c @@ -175,9 +175,9 @@ static int sh_sci_spi_remove(struct platform_device *dev) { struct sh_sci_spi *sp = platform_get_drvdata(dev); - iounmap(sp->membase); - setbits(sp, PIN_INIT, 0); spi_bitbang_stop(&sp->bitbang); + setbits(sp, PIN_INIT, 0); + iounmap(sp->membase); spi_master_put(sp->bitbang.master); return 0; } diff --git a/drivers/staging/iio/adc/ad7291.c b/drivers/staging/iio/adc/ad7291.c index 357cef2a6f4c..7194bd138762 100644 --- a/drivers/staging/iio/adc/ad7291.c +++ b/drivers/staging/iio/adc/ad7291.c @@ -465,7 +465,7 @@ static int ad7291_probe(struct i2c_client *client, struct ad7291_platform_data *pdata = client->dev.platform_data; struct ad7291_chip_info *chip; struct iio_dev *indio_dev; - int ret = 0; + int ret; indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*chip)); if (!indio_dev) @@ -475,7 +475,7 @@ static int ad7291_probe(struct i2c_client *client, if (pdata && pdata->use_external_ref) { chip->reg = devm_regulator_get(&client->dev, "vref"); if (IS_ERR(chip->reg)) - return ret; + return PTR_ERR(chip->reg); ret = regulator_enable(chip->reg); if (ret) diff --git a/drivers/staging/tidspbridge/core/tiomap3430.c b/drivers/staging/tidspbridge/core/tiomap3430.c index 8945b4e3a2a6..cb50120ed7b5 100644 --- a/drivers/staging/tidspbridge/core/tiomap3430.c +++ b/drivers/staging/tidspbridge/core/tiomap3430.c @@ -280,8 +280,10 @@ static int bridge_brd_monitor(struct bridge_dev_context *dev_ctxt) OMAP3430_IVA2_MOD, OMAP2_CM_CLKSTCTRL); /* Wait until the state has moved to ON */ - while (*pdata->dsp_prm_read(OMAP3430_IVA2_MOD, OMAP2_PM_PWSTST)& - OMAP_INTRANSITION_MASK); + while ((*pdata->dsp_prm_read)(OMAP3430_IVA2_MOD, + OMAP2_PM_PWSTST) & + OMAP_INTRANSITION_MASK) + ; /* Disable Automatic transition */ (*pdata->dsp_cm_write)(OMAP34XX_CLKSTCTRL_DISABLE_AUTO, OMAP3430_IVA2_MOD, OMAP2_CM_CLKSTCTRL); diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c index 5663f4d19d02..1f4c794f5fcc 100644 --- a/drivers/target/iscsi/iscsi_target.c +++ b/drivers/target/iscsi/iscsi_target.c @@ -1309,7 +1309,7 @@ iscsit_check_dataout_hdr(struct iscsi_conn *conn, unsigned char *buf, if (cmd->data_direction != DMA_TO_DEVICE) { pr_err("Command ITT: 0x%08x received DataOUT for a" " NON-WRITE command.\n", cmd->init_task_tag); - return iscsit_reject_cmd(cmd, ISCSI_REASON_PROTOCOL_ERROR, buf); + return iscsit_dump_data_payload(conn, payload_length, 1); } se_cmd = &cmd->se_cmd; iscsit_mod_dataout_timer(cmd); diff --git a/drivers/target/iscsi/iscsi_target_auth.c b/drivers/target/iscsi/iscsi_target_auth.c index 19b842c3e0b3..ab4915c0d933 100644 --- a/drivers/target/iscsi/iscsi_target_auth.c +++ b/drivers/target/iscsi/iscsi_target_auth.c @@ -174,7 +174,6 @@ static int chap_server_compute_md5( char *nr_out_ptr, unsigned int *nr_out_len) { - char *endptr; unsigned long id; unsigned char id_as_uchar; unsigned char digest[MD5_SIGNATURE_SIZE]; @@ -320,9 +319,14 @@ static int chap_server_compute_md5( } if (type == HEX) - id = simple_strtoul(&identifier[2], &endptr, 0); + ret = kstrtoul(&identifier[2], 0, &id); else - id = simple_strtoul(identifier, &endptr, 0); + ret = kstrtoul(identifier, 0, &id); + + if (ret < 0) { + pr_err("kstrtoul() failed for CHAP identifier: %d\n", ret); + goto out; + } if (id > 255) { pr_err("chap identifier: %lu greater than 255\n", id); goto out; @@ -351,6 +355,10 @@ static int chap_server_compute_md5( pr_err("Unable to convert incoming challenge\n"); goto out; } + if (challenge_len > 1024) { + pr_err("CHAP_C exceeds maximum binary size of 1024 bytes\n"); + goto out; + } /* * During mutual authentication, the CHAP_C generated by the * initiator must not match the original CHAP_C generated by diff --git a/drivers/target/iscsi/iscsi_target_login.c b/drivers/target/iscsi/iscsi_target_login.c index fecb69535a15..5e71ac609418 100644 --- a/drivers/target/iscsi/iscsi_target_login.c +++ b/drivers/target/iscsi/iscsi_target_login.c @@ -1216,7 +1216,7 @@ old_sess_out: static int __iscsi_target_login_thread(struct iscsi_np *np) { u8 *buffer, zero_tsih = 0; - int ret = 0, rc, stop; + int ret = 0, rc; struct iscsi_conn *conn = NULL; struct iscsi_login *login; struct iscsi_portal_group *tpg = NULL; @@ -1230,6 +1230,9 @@ static int __iscsi_target_login_thread(struct iscsi_np *np) if (np->np_thread_state == ISCSI_NP_THREAD_RESET) { np->np_thread_state = ISCSI_NP_THREAD_ACTIVE; complete(&np->np_restart_comp); + } else if (np->np_thread_state == ISCSI_NP_THREAD_SHUTDOWN) { + spin_unlock_bh(&np->np_thread_lock); + goto exit; } else { np->np_thread_state = ISCSI_NP_THREAD_ACTIVE; } @@ -1422,10 +1425,8 @@ old_sess_out: } out: - stop = kthread_should_stop(); - /* Wait for another socket.. */ - if (!stop) - return 1; + return 1; + exit: iscsi_stop_login_thread_timer(np); spin_lock_bh(&np->np_thread_lock); @@ -1442,7 +1443,7 @@ int iscsi_target_login_thread(void *arg) allow_signal(SIGINT); - while (!kthread_should_stop()) { + while (1) { ret = __iscsi_target_login_thread(np); /* * We break and exit here unless another sock_accept() call diff --git a/drivers/target/iscsi/iscsi_target_util.c b/drivers/target/iscsi/iscsi_target_util.c index 53e157cb8c54..fd90b28f1d94 100644 --- a/drivers/target/iscsi/iscsi_target_util.c +++ b/drivers/target/iscsi/iscsi_target_util.c @@ -1295,6 +1295,8 @@ int iscsit_tx_login_rsp(struct iscsi_conn *conn, u8 status_class, u8 status_deta login->login_failed = 1; iscsit_collect_login_stats(conn, status_class, status_detail); + memset(&login->rsp[0], 0, ISCSI_HDR_LEN); + hdr = (struct iscsi_login_rsp *)&login->rsp[0]; hdr->opcode = ISCSI_OP_LOGIN_RSP; hdr->status_class = status_class; diff --git a/drivers/target/loopback/tcm_loop.c b/drivers/target/loopback/tcm_loop.c index 6d2f37578b29..8c64b8776a96 100644 --- a/drivers/target/loopback/tcm_loop.c +++ b/drivers/target/loopback/tcm_loop.c @@ -239,6 +239,7 @@ static void tcm_loop_submission_work(struct work_struct *work) return; out_done: + kmem_cache_free(tcm_loop_cmd_cache, tl_cmd); sc->scsi_done(sc); return; } diff --git a/drivers/target/target_core_device.c b/drivers/target/target_core_device.c index 11d26fe65bfb..98da90167159 100644 --- a/drivers/target/target_core_device.c +++ b/drivers/target/target_core_device.c @@ -616,6 +616,7 @@ void core_dev_unexport( dev->export_count--; spin_unlock(&hba->device_lock); + lun->lun_sep = NULL; lun->lun_se_dev = NULL; } diff --git a/drivers/tc/tc.c b/drivers/tc/tc.c index a8aaf6ac2ae2..946562389ca8 100644 --- a/drivers/tc/tc.c +++ b/drivers/tc/tc.c @@ -129,7 +129,10 @@ static void __init tc_bus_add_devices(struct tc_bus *tbus) tc_device_get_irq(tdev); - device_register(&tdev->dev); + if (device_register(&tdev->dev)) { + put_device(&tdev->dev); + goto out_err; + } list_add_tail(&tdev->node, &tbus->devices); out_err: @@ -148,7 +151,10 @@ static int __init tc_init(void) INIT_LIST_HEAD(&tc_bus.devices); dev_set_name(&tc_bus.dev, "tc"); - device_register(&tc_bus.dev); + if (device_register(&tc_bus.dev)) { + put_device(&tc_bus.dev); + return 0; + } if (tc_bus.info.slot_size) { unsigned int tc_clock = tc_get_speed(&tc_bus) / 100000; diff --git a/drivers/tty/serial/msm_serial.c b/drivers/tty/serial/msm_serial.c index c41aca4dfc43..72000a6d5af0 100644 --- a/drivers/tty/serial/msm_serial.c +++ b/drivers/tty/serial/msm_serial.c @@ -991,7 +991,7 @@ static const struct of_device_id msm_uartdm_table[] = { { } }; -static int __init msm_serial_probe(struct platform_device *pdev) +static int msm_serial_probe(struct platform_device *pdev) { struct msm_port *msm_port; struct resource *resource; diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c index 971a760af4a1..8dae2f724a35 100644 --- a/drivers/vhost/net.c +++ b/drivers/vhost/net.c @@ -700,14 +700,6 @@ static void handle_rx_net(struct vhost_work *work) handle_rx(net); } -static void vhost_net_free(void *addr) -{ - if (is_vmalloc_addr(addr)) - vfree(addr); - else - kfree(addr); -} - static int vhost_net_open(struct inode *inode, struct file *f) { struct vhost_net *n; @@ -723,7 +715,7 @@ static int vhost_net_open(struct inode *inode, struct file *f) } vqs = kmalloc(VHOST_NET_VQ_MAX * sizeof(*vqs), GFP_KERNEL); if (!vqs) { - vhost_net_free(n); + kvfree(n); return -ENOMEM; } @@ -840,7 +832,7 @@ static int vhost_net_release(struct inode *inode, struct file *f) * since jobs can re-queue themselves. */ vhost_net_flush(n); kfree(n->dev.vqs); - vhost_net_free(n); + kvfree(n); return 0; } diff --git a/drivers/vhost/scsi.c b/drivers/vhost/scsi.c index 4f4ffa4c604e..69906cacd04f 100644 --- a/drivers/vhost/scsi.c +++ b/drivers/vhost/scsi.c @@ -1503,14 +1503,6 @@ static int vhost_scsi_set_features(struct vhost_scsi *vs, u64 features) return 0; } -static void vhost_scsi_free(struct vhost_scsi *vs) -{ - if (is_vmalloc_addr(vs)) - vfree(vs); - else - kfree(vs); -} - static int vhost_scsi_open(struct inode *inode, struct file *f) { struct vhost_scsi *vs; @@ -1550,7 +1542,7 @@ static int vhost_scsi_open(struct inode *inode, struct file *f) return 0; err_vqs: - vhost_scsi_free(vs); + kvfree(vs); err_vs: return r; } @@ -1569,7 +1561,7 @@ static int vhost_scsi_release(struct inode *inode, struct file *f) /* Jobs can re-queue themselves in evt kick handler. Do extra flush. */ vhost_scsi_flush(vs); kfree(vs->dev.vqs); - vhost_scsi_free(vs); + kvfree(vs); return 0; } diff --git a/drivers/video/fbdev/atmel_lcdfb.c b/drivers/video/fbdev/atmel_lcdfb.c index e683b6ef9594..d36e830d6fc6 100644 --- a/drivers/video/fbdev/atmel_lcdfb.c +++ b/drivers/video/fbdev/atmel_lcdfb.c @@ -1057,6 +1057,7 @@ static int atmel_lcdfb_of_init(struct atmel_lcdfb_info *sinfo) goto put_display_node; } + INIT_LIST_HEAD(&pdata->pwr_gpios); ret = -ENOMEM; for (i = 0; i < of_gpio_named_count(display_np, "atmel,power-control-gpio"); i++) { gpio = of_get_named_gpio_flags(display_np, "atmel,power-control-gpio", @@ -1082,6 +1083,7 @@ static int atmel_lcdfb_of_init(struct atmel_lcdfb_info *sinfo) dev_err(dev, "set direction output gpio %d failed\n", gpio); goto put_display_node; } + list_add(&og->list, &pdata->pwr_gpios); } if (is_gpio_power) diff --git a/drivers/video/fbdev/bfin_adv7393fb.c b/drivers/video/fbdev/bfin_adv7393fb.c index a54f7f7d763b..8fe41caac38e 100644 --- a/drivers/video/fbdev/bfin_adv7393fb.c +++ b/drivers/video/fbdev/bfin_adv7393fb.c @@ -408,7 +408,7 @@ static int bfin_adv7393_fb_probe(struct i2c_client *client, /* Workaround "PPI Does Not Start Properly In Specific Mode" */ if (ANOMALY_05000400) { ret = gpio_request_one(P_IDENT(P_PPI0_FS3), GPIOF_OUT_INIT_LOW, - "PPI0_FS3") + "PPI0_FS3"); if (ret) { dev_err(&client->dev, "PPI0_FS3 GPIO request failed\n"); ret = -EBUSY; diff --git a/drivers/video/fbdev/omap2/dss/omapdss-boot-init.c b/drivers/video/fbdev/omap2/dss/omapdss-boot-init.c index 99af9e88b2d8..2f0822ee3ff9 100644 --- a/drivers/video/fbdev/omap2/dss/omapdss-boot-init.c +++ b/drivers/video/fbdev/omap2/dss/omapdss-boot-init.c @@ -121,9 +121,11 @@ static void __init omapdss_add_to_list(struct device_node *node, bool root) { struct dss_conv_node *n = kmalloc(sizeof(struct dss_conv_node), GFP_KERNEL); - n->node = node; - n->root = root; - list_add(&n->list, &dss_conv_list); + if (n) { + n->node = node; + n->root = root; + list_add(&n->list, &dss_conv_list); + } } static bool __init omapdss_list_contains(const struct device_node *node) diff --git a/drivers/video/fbdev/vt8500lcdfb.c b/drivers/video/fbdev/vt8500lcdfb.c index a8f2b280f796..a1134c3f6c11 100644 --- a/drivers/video/fbdev/vt8500lcdfb.c +++ b/drivers/video/fbdev/vt8500lcdfb.c @@ -474,8 +474,6 @@ static int vt8500lcd_remove(struct platform_device *pdev) res = platform_get_resource(pdev, IORESOURCE_MEM, 0); release_mem_region(res->start, resource_size(res)); - kfree(fbi); - return 0; } @@ -1021,6 +1021,7 @@ void aio_complete(struct kiocb *iocb, long res, long res2) /* everything turned out well, dispose of the aiocb. */ kiocb_free(iocb); + put_reqs_available(ctx, 1); /* * We have to order our ring_info tail store above and test @@ -1062,6 +1063,9 @@ static long aio_read_events_ring(struct kioctx *ctx, if (head == tail) goto out; + head %= ctx->nr_events; + tail %= ctx->nr_events; + while (ret < nr) { long avail; struct io_event *ev; @@ -1100,8 +1104,6 @@ static long aio_read_events_ring(struct kioctx *ctx, flush_dcache_page(ctx->ring_pages[0]); pr_debug("%li h%u t%u\n", ret, head, tail); - - put_reqs_available(ctx, ret); out: mutex_unlock(&ctx->ring_lock); diff --git a/fs/autofs4/inode.c b/fs/autofs4/inode.c index d7bd395ab586..1c55388ae633 100644 --- a/fs/autofs4/inode.c +++ b/fs/autofs4/inode.c @@ -210,7 +210,7 @@ int autofs4_fill_super(struct super_block *s, void *data, int silent) int pipefd; struct autofs_sb_info *sbi; struct autofs_info *ino; - int pgrp; + int pgrp = 0; bool pgrp_set = false; int ret = -EINVAL; diff --git a/fs/cifs/cifs_unicode.c b/fs/cifs/cifs_unicode.c index 0227b45ef00a..15e9505aa35f 100644 --- a/fs/cifs/cifs_unicode.c +++ b/fs/cifs/cifs_unicode.c @@ -290,7 +290,8 @@ int cifsConvertToUTF16(__le16 *target, const char *source, int srclen, const struct nls_table *cp, int mapChars) { - int i, j, charlen; + int i, charlen; + int j = 0; char src_char; __le16 dst_char; wchar_t tmp; @@ -298,12 +299,11 @@ cifsConvertToUTF16(__le16 *target, const char *source, int srclen, if (!mapChars) return cifs_strtoUTF16(target, source, PATH_MAX, cp); - for (i = 0, j = 0; i < srclen; j++) { + for (i = 0; i < srclen; j++) { src_char = source[i]; charlen = 1; switch (src_char) { case 0: - put_unaligned(0, &target[j]); goto ctoUTF16_out; case ':': dst_char = cpu_to_le16(UNI_COLON); @@ -350,6 +350,7 @@ cifsConvertToUTF16(__le16 *target, const char *source, int srclen, } ctoUTF16_out: + put_unaligned(0, &target[j]); /* Null terminate target unicode string */ return j; } diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c index 2c90d07c0b3a..888398067420 100644 --- a/fs/cifs/cifsfs.c +++ b/fs/cifs/cifsfs.c @@ -725,6 +725,19 @@ out_nls: goto out; } +static ssize_t +cifs_loose_read_iter(struct kiocb *iocb, struct iov_iter *iter) +{ + ssize_t rc; + struct inode *inode = file_inode(iocb->ki_filp); + + rc = cifs_revalidate_mapping(inode); + if (rc) + return rc; + + return generic_file_read_iter(iocb, iter); +} + static ssize_t cifs_file_write_iter(struct kiocb *iocb, struct iov_iter *from) { struct inode *inode = file_inode(iocb->ki_filp); @@ -881,7 +894,7 @@ const struct inode_operations cifs_symlink_inode_ops = { const struct file_operations cifs_file_ops = { .read = new_sync_read, .write = new_sync_write, - .read_iter = generic_file_read_iter, + .read_iter = cifs_loose_read_iter, .write_iter = cifs_file_write_iter, .open = cifs_open, .release = cifs_close, @@ -939,7 +952,7 @@ const struct file_operations cifs_file_direct_ops = { const struct file_operations cifs_file_nobrl_ops = { .read = new_sync_read, .write = new_sync_write, - .read_iter = generic_file_read_iter, + .read_iter = cifs_loose_read_iter, .write_iter = cifs_file_write_iter, .open = cifs_open, .release = cifs_close, diff --git a/fs/cifs/link.c b/fs/cifs/link.c index 264ece71bdb2..68559fd557fb 100644 --- a/fs/cifs/link.c +++ b/fs/cifs/link.c @@ -374,7 +374,7 @@ cifs_create_mf_symlink(unsigned int xid, struct cifs_tcon *tcon, oparms.cifs_sb = cifs_sb; oparms.desired_access = GENERIC_WRITE; oparms.create_options = create_options; - oparms.disposition = FILE_OPEN; + oparms.disposition = FILE_CREATE; oparms.path = path; oparms.fid = &fid; oparms.reconnect = false; diff --git a/fs/ext4/balloc.c b/fs/ext4/balloc.c index 0762d143e252..fca382037ddd 100644 --- a/fs/ext4/balloc.c +++ b/fs/ext4/balloc.c @@ -194,7 +194,16 @@ static void ext4_init_block_bitmap(struct super_block *sb, if (!ext4_group_desc_csum_verify(sb, block_group, gdp)) { ext4_error(sb, "Checksum bad for group %u", block_group); grp = ext4_get_group_info(sb, block_group); + if (!EXT4_MB_GRP_BBITMAP_CORRUPT(grp)) + percpu_counter_sub(&sbi->s_freeclusters_counter, + grp->bb_free); set_bit(EXT4_GROUP_INFO_BBITMAP_CORRUPT_BIT, &grp->bb_state); + if (!EXT4_MB_GRP_IBITMAP_CORRUPT(grp)) { + int count; + count = ext4_free_inodes_count(sb, gdp); + percpu_counter_sub(&sbi->s_freeinodes_counter, + count); + } set_bit(EXT4_GROUP_INFO_IBITMAP_CORRUPT_BIT, &grp->bb_state); return; } @@ -359,6 +368,7 @@ static void ext4_validate_block_bitmap(struct super_block *sb, { ext4_fsblk_t blk; struct ext4_group_info *grp = ext4_get_group_info(sb, block_group); + struct ext4_sb_info *sbi = EXT4_SB(sb); if (buffer_verified(bh)) return; @@ -369,6 +379,9 @@ static void ext4_validate_block_bitmap(struct super_block *sb, ext4_unlock_group(sb, block_group); ext4_error(sb, "bg %u: block %llu: invalid block bitmap", block_group, blk); + if (!EXT4_MB_GRP_BBITMAP_CORRUPT(grp)) + percpu_counter_sub(&sbi->s_freeclusters_counter, + grp->bb_free); set_bit(EXT4_GROUP_INFO_BBITMAP_CORRUPT_BIT, &grp->bb_state); return; } @@ -376,6 +389,9 @@ static void ext4_validate_block_bitmap(struct super_block *sb, desc, bh))) { ext4_unlock_group(sb, block_group); ext4_error(sb, "bg %u: bad block bitmap checksum", block_group); + if (!EXT4_MB_GRP_BBITMAP_CORRUPT(grp)) + percpu_counter_sub(&sbi->s_freeclusters_counter, + grp->bb_free); set_bit(EXT4_GROUP_INFO_BBITMAP_CORRUPT_BIT, &grp->bb_state); return; } diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c index 0ee59a6644e2..a87455df38bc 100644 --- a/fs/ext4/ialloc.c +++ b/fs/ext4/ialloc.c @@ -71,6 +71,7 @@ static unsigned ext4_init_inode_bitmap(struct super_block *sb, struct ext4_group_desc *gdp) { struct ext4_group_info *grp; + struct ext4_sb_info *sbi = EXT4_SB(sb); J_ASSERT_BH(bh, buffer_locked(bh)); /* If checksum is bad mark all blocks and inodes use to prevent @@ -78,7 +79,16 @@ static unsigned ext4_init_inode_bitmap(struct super_block *sb, if (!ext4_group_desc_csum_verify(sb, block_group, gdp)) { ext4_error(sb, "Checksum bad for group %u", block_group); grp = ext4_get_group_info(sb, block_group); + if (!EXT4_MB_GRP_BBITMAP_CORRUPT(grp)) + percpu_counter_sub(&sbi->s_freeclusters_counter, + grp->bb_free); set_bit(EXT4_GROUP_INFO_BBITMAP_CORRUPT_BIT, &grp->bb_state); + if (!EXT4_MB_GRP_IBITMAP_CORRUPT(grp)) { + int count; + count = ext4_free_inodes_count(sb, gdp); + percpu_counter_sub(&sbi->s_freeinodes_counter, + count); + } set_bit(EXT4_GROUP_INFO_IBITMAP_CORRUPT_BIT, &grp->bb_state); return 0; } @@ -116,6 +126,7 @@ ext4_read_inode_bitmap(struct super_block *sb, ext4_group_t block_group) struct buffer_head *bh = NULL; ext4_fsblk_t bitmap_blk; struct ext4_group_info *grp; + struct ext4_sb_info *sbi = EXT4_SB(sb); desc = ext4_get_group_desc(sb, block_group, NULL); if (!desc) @@ -185,6 +196,12 @@ verify: ext4_error(sb, "Corrupt inode bitmap - block_group = %u, " "inode_bitmap = %llu", block_group, bitmap_blk); grp = ext4_get_group_info(sb, block_group); + if (!EXT4_MB_GRP_IBITMAP_CORRUPT(grp)) { + int count; + count = ext4_free_inodes_count(sb, desc); + percpu_counter_sub(&sbi->s_freeinodes_counter, + count); + } set_bit(EXT4_GROUP_INFO_IBITMAP_CORRUPT_BIT, &grp->bb_state); return NULL; } @@ -321,6 +338,12 @@ out: fatal = err; } else { ext4_error(sb, "bit already cleared for inode %lu", ino); + if (!EXT4_MB_GRP_IBITMAP_CORRUPT(grp)) { + int count; + count = ext4_free_inodes_count(sb, gdp); + percpu_counter_sub(&sbi->s_freeinodes_counter, + count); + } set_bit(EXT4_GROUP_INFO_IBITMAP_CORRUPT_BIT, &grp->bb_state); } diff --git a/fs/ext4/indirect.c b/fs/ext4/indirect.c index 8a57e9fcd1b9..fd69da194826 100644 --- a/fs/ext4/indirect.c +++ b/fs/ext4/indirect.c @@ -389,7 +389,13 @@ static int ext4_alloc_branch(handle_t *handle, struct inode *inode, return 0; failed: for (; i >= 0; i--) { - if (i != indirect_blks && branch[i].bh) + /* + * We want to ext4_forget() only freshly allocated indirect + * blocks. Buffer for new_blocks[i-1] is at branch[i].bh and + * buffer at branch[0].bh is indirect block / inode already + * existing before ext4_alloc_branch() was called. + */ + if (i > 0 && i != indirect_blks && branch[i].bh) ext4_forget(handle, 1, inode, branch[i].bh, branch[i].bh->b_blocknr); ext4_free_blocks(handle, inode, NULL, new_blocks[i], @@ -1310,16 +1316,24 @@ static int free_hole_blocks(handle_t *handle, struct inode *inode, blk = *i_data; if (level > 0) { ext4_lblk_t first2; + ext4_lblk_t count2; + bh = sb_bread(inode->i_sb, le32_to_cpu(blk)); if (!bh) { EXT4_ERROR_INODE_BLOCK(inode, le32_to_cpu(blk), "Read failure"); return -EIO; } - first2 = (first > offset) ? first - offset : 0; + if (first > offset) { + first2 = first - offset; + count2 = count; + } else { + first2 = 0; + count2 = count - (offset - first); + } ret = free_hole_blocks(handle, inode, bh, (__le32 *)bh->b_data, level - 1, - first2, count - offset, + first2, count2, inode->i_sb->s_blocksize >> 2); if (ret) { brelse(bh); @@ -1329,8 +1343,8 @@ static int free_hole_blocks(handle_t *handle, struct inode *inode, if (level == 0 || (bh && all_zeroes((__le32 *)bh->b_data, (__le32 *)bh->b_data + addr_per_block))) { - ext4_free_data(handle, inode, parent_bh, &blk, &blk+1); - *i_data = 0; + ext4_free_data(handle, inode, parent_bh, + i_data, i_data + 1); } brelse(bh); bh = NULL; diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c index 59e31622cc6e..7f72f50a8fa7 100644 --- a/fs/ext4/mballoc.c +++ b/fs/ext4/mballoc.c @@ -722,6 +722,7 @@ void ext4_mb_generate_buddy(struct super_block *sb, void *buddy, void *bitmap, ext4_group_t group) { struct ext4_group_info *grp = ext4_get_group_info(sb, group); + struct ext4_sb_info *sbi = EXT4_SB(sb); ext4_grpblk_t max = EXT4_CLUSTERS_PER_GROUP(sb); ext4_grpblk_t i = 0; ext4_grpblk_t first; @@ -759,6 +760,9 @@ void ext4_mb_generate_buddy(struct super_block *sb, * corrupt and update bb_free using bitmap value */ grp->bb_free = free; + if (!EXT4_MB_GRP_BBITMAP_CORRUPT(grp)) + percpu_counter_sub(&sbi->s_freeclusters_counter, + grp->bb_free); set_bit(EXT4_GROUP_INFO_BBITMAP_CORRUPT_BIT, &grp->bb_state); } mb_set_largest_free_order(sb, grp); @@ -1431,6 +1435,7 @@ static void mb_free_blocks(struct inode *inode, struct ext4_buddy *e4b, right_is_free = !mb_test_bit(last + 1, e4b->bd_bitmap); if (unlikely(block != -1)) { + struct ext4_sb_info *sbi = EXT4_SB(sb); ext4_fsblk_t blocknr; blocknr = ext4_group_first_block_no(sb, e4b->bd_group); @@ -1441,6 +1446,9 @@ static void mb_free_blocks(struct inode *inode, struct ext4_buddy *e4b, "freeing already freed block " "(bit %u); block bitmap corrupt.", block); + if (!EXT4_MB_GRP_BBITMAP_CORRUPT(e4b->bd_info)) + percpu_counter_sub(&sbi->s_freeclusters_counter, + e4b->bd_info->bb_free); /* Mark the block group as corrupt. */ set_bit(EXT4_GROUP_INFO_BBITMAP_CORRUPT_BIT, &e4b->bd_info->bb_state); diff --git a/fs/kernfs/file.c b/fs/kernfs/file.c index e3d37f607f97..d895b4b7b661 100644 --- a/fs/kernfs/file.c +++ b/fs/kernfs/file.c @@ -39,6 +39,19 @@ struct kernfs_open_node { struct list_head files; /* goes through kernfs_open_file.list */ }; +/* + * kernfs_notify() may be called from any context and bounces notifications + * through a work item. To minimize space overhead in kernfs_node, the + * pending queue is implemented as a singly linked list of kernfs_nodes. + * The list is terminated with the self pointer so that whether a + * kernfs_node is on the list or not can be determined by testing the next + * pointer for NULL. + */ +#define KERNFS_NOTIFY_EOL ((void *)&kernfs_notify_list) + +static DEFINE_SPINLOCK(kernfs_notify_lock); +static struct kernfs_node *kernfs_notify_list = KERNFS_NOTIFY_EOL; + static struct kernfs_open_file *kernfs_of(struct file *file) { return ((struct seq_file *)file->private_data)->private; @@ -783,24 +796,25 @@ static unsigned int kernfs_fop_poll(struct file *filp, poll_table *wait) return DEFAULT_POLLMASK|POLLERR|POLLPRI; } -/** - * kernfs_notify - notify a kernfs file - * @kn: file to notify - * - * Notify @kn such that poll(2) on @kn wakes up. - */ -void kernfs_notify(struct kernfs_node *kn) +static void kernfs_notify_workfn(struct work_struct *work) { - struct kernfs_root *root = kernfs_root(kn); + struct kernfs_node *kn; struct kernfs_open_node *on; struct kernfs_super_info *info; - unsigned long flags; - - if (WARN_ON(kernfs_type(kn) != KERNFS_FILE)) +repeat: + /* pop one off the notify_list */ + spin_lock_irq(&kernfs_notify_lock); + kn = kernfs_notify_list; + if (kn == KERNFS_NOTIFY_EOL) { + spin_unlock_irq(&kernfs_notify_lock); return; + } + kernfs_notify_list = kn->attr.notify_next; + kn->attr.notify_next = NULL; + spin_unlock_irq(&kernfs_notify_lock); /* kick poll */ - spin_lock_irqsave(&kernfs_open_node_lock, flags); + spin_lock_irq(&kernfs_open_node_lock); on = kn->attr.open; if (on) { @@ -808,12 +822,12 @@ void kernfs_notify(struct kernfs_node *kn) wake_up_interruptible(&on->poll); } - spin_unlock_irqrestore(&kernfs_open_node_lock, flags); + spin_unlock_irq(&kernfs_open_node_lock); /* kick fsnotify */ mutex_lock(&kernfs_mutex); - list_for_each_entry(info, &root->supers, node) { + list_for_each_entry(info, &kernfs_root(kn)->supers, node) { struct inode *inode; struct dentry *dentry; @@ -833,6 +847,33 @@ void kernfs_notify(struct kernfs_node *kn) } mutex_unlock(&kernfs_mutex); + kernfs_put(kn); + goto repeat; +} + +/** + * kernfs_notify - notify a kernfs file + * @kn: file to notify + * + * Notify @kn such that poll(2) on @kn wakes up. Maybe be called from any + * context. + */ +void kernfs_notify(struct kernfs_node *kn) +{ + static DECLARE_WORK(kernfs_notify_work, kernfs_notify_workfn); + unsigned long flags; + + if (WARN_ON(kernfs_type(kn) != KERNFS_FILE)) + return; + + spin_lock_irqsave(&kernfs_notify_lock, flags); + if (!kn->attr.notify_next) { + kernfs_get(kn); + kn->attr.notify_next = kernfs_notify_list; + kernfs_notify_list = kn; + schedule_work(&kernfs_notify_work); + } + spin_unlock_irqrestore(&kernfs_notify_lock, flags); } EXPORT_SYMBOL_GPL(kernfs_notify); diff --git a/fs/mbcache.c b/fs/mbcache.c index bf166e388f0d..187477ded6b3 100644 --- a/fs/mbcache.c +++ b/fs/mbcache.c @@ -73,6 +73,7 @@ #include <linux/mbcache.h> #include <linux/init.h> #include <linux/blockgroup_lock.h> +#include <linux/log2.h> #ifdef MB_CACHE_DEBUG # define mb_debug(f...) do { \ @@ -93,7 +94,7 @@ #define MB_CACHE_WRITER ((unsigned short)~0U >> 1) -#define MB_CACHE_ENTRY_LOCK_BITS __builtin_log2(NR_BG_LOCKS) +#define MB_CACHE_ENTRY_LOCK_BITS ilog2(NR_BG_LOCKS) #define MB_CACHE_ENTRY_LOCK_INDEX(ce) \ (hash_long((unsigned long)ce, MB_CACHE_ENTRY_LOCK_BITS)) diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c index c496f8a74639..9927913c97c2 100644 --- a/fs/nfs/inode.c +++ b/fs/nfs/inode.c @@ -147,6 +147,17 @@ int nfs_sync_mapping(struct address_space *mapping) return ret; } +static void nfs_set_cache_invalid(struct inode *inode, unsigned long flags) +{ + struct nfs_inode *nfsi = NFS_I(inode); + + if (inode->i_mapping->nrpages == 0) + flags &= ~NFS_INO_INVALID_DATA; + nfsi->cache_validity |= flags; + if (flags & NFS_INO_INVALID_DATA) + nfs_fscache_invalidate(inode); +} + /* * Invalidate the local caches */ @@ -162,17 +173,16 @@ static void nfs_zap_caches_locked(struct inode *inode) memset(NFS_I(inode)->cookieverf, 0, sizeof(NFS_I(inode)->cookieverf)); if (S_ISREG(mode) || S_ISDIR(mode) || S_ISLNK(mode)) { - nfs_fscache_invalidate(inode); - nfsi->cache_validity |= NFS_INO_INVALID_ATTR + nfs_set_cache_invalid(inode, NFS_INO_INVALID_ATTR | NFS_INO_INVALID_DATA | NFS_INO_INVALID_ACCESS | NFS_INO_INVALID_ACL - | NFS_INO_REVAL_PAGECACHE; + | NFS_INO_REVAL_PAGECACHE); } else - nfsi->cache_validity |= NFS_INO_INVALID_ATTR + nfs_set_cache_invalid(inode, NFS_INO_INVALID_ATTR | NFS_INO_INVALID_ACCESS | NFS_INO_INVALID_ACL - | NFS_INO_REVAL_PAGECACHE; + | NFS_INO_REVAL_PAGECACHE); nfs_zap_label_cache_locked(nfsi); } @@ -187,8 +197,7 @@ void nfs_zap_mapping(struct inode *inode, struct address_space *mapping) { if (mapping->nrpages != 0) { spin_lock(&inode->i_lock); - NFS_I(inode)->cache_validity |= NFS_INO_INVALID_DATA; - nfs_fscache_invalidate(inode); + nfs_set_cache_invalid(inode, NFS_INO_INVALID_DATA); spin_unlock(&inode->i_lock); } } @@ -209,7 +218,7 @@ EXPORT_SYMBOL_GPL(nfs_zap_acl_cache); void nfs_invalidate_atime(struct inode *inode) { spin_lock(&inode->i_lock); - NFS_I(inode)->cache_validity |= NFS_INO_INVALID_ATIME; + nfs_set_cache_invalid(inode, NFS_INO_INVALID_ATIME); spin_unlock(&inode->i_lock); } EXPORT_SYMBOL_GPL(nfs_invalidate_atime); @@ -369,7 +378,7 @@ nfs_fhget(struct super_block *sb, struct nfs_fh *fh, struct nfs_fattr *fattr, st inode->i_mode = fattr->mode; if ((fattr->valid & NFS_ATTR_FATTR_MODE) == 0 && nfs_server_capable(inode, NFS_CAP_MODE)) - nfsi->cache_validity |= NFS_INO_INVALID_ATTR; + nfs_set_cache_invalid(inode, NFS_INO_INVALID_ATTR); /* Why so? Because we want revalidate for devices/FIFOs, and * that's precisely what we have in nfs_file_inode_operations. */ @@ -415,36 +424,36 @@ nfs_fhget(struct super_block *sb, struct nfs_fh *fh, struct nfs_fattr *fattr, st if (fattr->valid & NFS_ATTR_FATTR_ATIME) inode->i_atime = fattr->atime; else if (nfs_server_capable(inode, NFS_CAP_ATIME)) - nfsi->cache_validity |= NFS_INO_INVALID_ATTR; + nfs_set_cache_invalid(inode, NFS_INO_INVALID_ATTR); if (fattr->valid & NFS_ATTR_FATTR_MTIME) inode->i_mtime = fattr->mtime; else if (nfs_server_capable(inode, NFS_CAP_MTIME)) - nfsi->cache_validity |= NFS_INO_INVALID_ATTR; + nfs_set_cache_invalid(inode, NFS_INO_INVALID_ATTR); if (fattr->valid & NFS_ATTR_FATTR_CTIME) inode->i_ctime = fattr->ctime; else if (nfs_server_capable(inode, NFS_CAP_CTIME)) - nfsi->cache_validity |= NFS_INO_INVALID_ATTR; + nfs_set_cache_invalid(inode, NFS_INO_INVALID_ATTR); if (fattr->valid & NFS_ATTR_FATTR_CHANGE) inode->i_version = fattr->change_attr; else if (nfs_server_capable(inode, NFS_CAP_CHANGE_ATTR)) - nfsi->cache_validity |= NFS_INO_INVALID_ATTR; + nfs_set_cache_invalid(inode, NFS_INO_INVALID_ATTR); if (fattr->valid & NFS_ATTR_FATTR_SIZE) inode->i_size = nfs_size_to_loff_t(fattr->size); else - nfsi->cache_validity |= NFS_INO_INVALID_ATTR - | NFS_INO_REVAL_PAGECACHE; + nfs_set_cache_invalid(inode, NFS_INO_INVALID_ATTR + | NFS_INO_REVAL_PAGECACHE); if (fattr->valid & NFS_ATTR_FATTR_NLINK) set_nlink(inode, fattr->nlink); else if (nfs_server_capable(inode, NFS_CAP_NLINK)) - nfsi->cache_validity |= NFS_INO_INVALID_ATTR; + nfs_set_cache_invalid(inode, NFS_INO_INVALID_ATTR); if (fattr->valid & NFS_ATTR_FATTR_OWNER) inode->i_uid = fattr->uid; else if (nfs_server_capable(inode, NFS_CAP_OWNER)) - nfsi->cache_validity |= NFS_INO_INVALID_ATTR; + nfs_set_cache_invalid(inode, NFS_INO_INVALID_ATTR); if (fattr->valid & NFS_ATTR_FATTR_GROUP) inode->i_gid = fattr->gid; else if (nfs_server_capable(inode, NFS_CAP_OWNER_GROUP)) - nfsi->cache_validity |= NFS_INO_INVALID_ATTR; + nfs_set_cache_invalid(inode, NFS_INO_INVALID_ATTR); if (fattr->valid & NFS_ATTR_FATTR_BLOCKS_USED) inode->i_blocks = fattr->du.nfs2.blocks; if (fattr->valid & NFS_ATTR_FATTR_SPACE_USED) { @@ -550,6 +559,9 @@ static int nfs_vmtruncate(struct inode * inode, loff_t offset) spin_lock(&inode->i_lock); i_size_write(inode, offset); + /* Optimisation */ + if (offset == 0) + NFS_I(inode)->cache_validity &= ~NFS_INO_INVALID_DATA; spin_unlock(&inode->i_lock); truncate_pagecache(inode, offset); @@ -578,7 +590,8 @@ void nfs_setattr_update_inode(struct inode *inode, struct iattr *attr) inode->i_uid = attr->ia_uid; if ((attr->ia_valid & ATTR_GID) != 0) inode->i_gid = attr->ia_gid; - NFS_I(inode)->cache_validity |= NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL; + nfs_set_cache_invalid(inode, NFS_INO_INVALID_ACCESS + | NFS_INO_INVALID_ACL); spin_unlock(&inode->i_lock); } if ((attr->ia_valid & ATTR_SIZE) != 0) { @@ -1101,7 +1114,7 @@ static unsigned long nfs_wcc_update_inode(struct inode *inode, struct nfs_fattr && inode->i_version == fattr->pre_change_attr) { inode->i_version = fattr->change_attr; if (S_ISDIR(inode->i_mode)) - nfsi->cache_validity |= NFS_INO_INVALID_DATA; + nfs_set_cache_invalid(inode, NFS_INO_INVALID_DATA); ret |= NFS_INO_INVALID_ATTR; } /* If we have atomic WCC data, we may update some attributes */ @@ -1117,7 +1130,7 @@ static unsigned long nfs_wcc_update_inode(struct inode *inode, struct nfs_fattr && timespec_equal(&inode->i_mtime, &fattr->pre_mtime)) { memcpy(&inode->i_mtime, &fattr->mtime, sizeof(inode->i_mtime)); if (S_ISDIR(inode->i_mode)) - nfsi->cache_validity |= NFS_INO_INVALID_DATA; + nfs_set_cache_invalid(inode, NFS_INO_INVALID_DATA); ret |= NFS_INO_INVALID_ATTR; } if ((fattr->valid & NFS_ATTR_FATTR_PRESIZE) @@ -1128,9 +1141,6 @@ static unsigned long nfs_wcc_update_inode(struct inode *inode, struct nfs_fattr ret |= NFS_INO_INVALID_ATTR; } - if (nfsi->cache_validity & NFS_INO_INVALID_DATA) - nfs_fscache_invalidate(inode); - return ret; } @@ -1189,7 +1199,7 @@ static int nfs_check_inode_attributes(struct inode *inode, struct nfs_fattr *fat invalid |= NFS_INO_INVALID_ATIME; if (invalid != 0) - nfsi->cache_validity |= invalid; + nfs_set_cache_invalid(inode, invalid); nfsi->read_cache_jiffies = fattr->time_start; return 0; @@ -1402,13 +1412,11 @@ EXPORT_SYMBOL_GPL(nfs_refresh_inode); static int nfs_post_op_update_inode_locked(struct inode *inode, struct nfs_fattr *fattr) { - struct nfs_inode *nfsi = NFS_I(inode); + unsigned long invalid = NFS_INO_INVALID_ATTR|NFS_INO_REVAL_PAGECACHE; - nfsi->cache_validity |= NFS_INO_INVALID_ATTR|NFS_INO_REVAL_PAGECACHE; - if (S_ISDIR(inode->i_mode)) { - nfsi->cache_validity |= NFS_INO_INVALID_DATA; - nfs_fscache_invalidate(inode); - } + if (S_ISDIR(inode->i_mode)) + invalid |= NFS_INO_INVALID_DATA; + nfs_set_cache_invalid(inode, invalid); if ((fattr->valid & NFS_ATTR_FATTR) == 0) return 0; return nfs_refresh_inode_locked(inode, fattr); @@ -1601,6 +1609,7 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr) if ((nfsi->npages == 0) || new_isize > cur_isize) { i_size_write(inode, new_isize); invalid |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_DATA; + invalid &= ~NFS_INO_REVAL_PAGECACHE; } dprintk("NFS: isize change on server for file %s/%ld " "(%Ld to %Ld)\n", @@ -1702,10 +1711,7 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr) invalid &= ~NFS_INO_INVALID_DATA; if (!NFS_PROTO(inode)->have_delegation(inode, FMODE_READ) || (save_cache_validity & NFS_INO_REVAL_FORCED)) - nfsi->cache_validity |= invalid; - - if (invalid & NFS_INO_INVALID_DATA) - nfs_fscache_invalidate(inode); + nfs_set_cache_invalid(inode, invalid); return 0; out_err: diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h index f63cb87cd730..ba2affa51941 100644 --- a/fs/nfs/nfs4_fs.h +++ b/fs/nfs/nfs4_fs.h @@ -230,7 +230,7 @@ int nfs_atomic_open(struct inode *, struct dentry *, struct file *, extern struct file_system_type nfs4_fs_type; /* nfs4namespace.c */ -struct rpc_clnt *nfs4_create_sec_client(struct rpc_clnt *, struct inode *, struct qstr *); +struct rpc_clnt *nfs4_negotiate_security(struct rpc_clnt *, struct inode *, struct qstr *); struct vfsmount *nfs4_submount(struct nfs_server *, struct dentry *, struct nfs_fh *, struct nfs_fattr *); int nfs4_replace_transport(struct nfs_server *server, diff --git a/fs/nfs/nfs4namespace.c b/fs/nfs/nfs4namespace.c index 3d5dbf80d46a..3d83cb1fdc70 100644 --- a/fs/nfs/nfs4namespace.c +++ b/fs/nfs/nfs4namespace.c @@ -139,16 +139,22 @@ static size_t nfs_parse_server_name(char *string, size_t len, * @server: NFS server struct * @flavors: List of security tuples returned by SECINFO procedure * - * Return the pseudoflavor of the first security mechanism in - * "flavors" that is locally supported. Return RPC_AUTH_UNIX if - * no matching flavor is found in the array. The "flavors" array + * Return an rpc client that uses the first security mechanism in + * "flavors" that is locally supported. The "flavors" array * is searched in the order returned from the server, per RFC 3530 - * recommendation. + * recommendation and each flavor is checked for membership in the + * sec= mount option list if it exists. + * + * Return -EPERM if no matching flavor is found in the array. + * + * Please call rpc_shutdown_client() when you are done with this rpc client. + * */ -static rpc_authflavor_t nfs_find_best_sec(struct nfs_server *server, +static struct rpc_clnt *nfs_find_best_sec(struct rpc_clnt *clnt, + struct nfs_server *server, struct nfs4_secinfo_flavors *flavors) { - rpc_authflavor_t pseudoflavor; + rpc_authflavor_t pflavor; struct nfs4_secinfo4 *secinfo; unsigned int i; @@ -159,62 +165,73 @@ static rpc_authflavor_t nfs_find_best_sec(struct nfs_server *server, case RPC_AUTH_NULL: case RPC_AUTH_UNIX: case RPC_AUTH_GSS: - pseudoflavor = rpcauth_get_pseudoflavor(secinfo->flavor, + pflavor = rpcauth_get_pseudoflavor(secinfo->flavor, &secinfo->flavor_info); - /* make sure pseudoflavor matches sec= mount opt */ - if (pseudoflavor != RPC_AUTH_MAXFLAVOR && - nfs_auth_info_match(&server->auth_info, - pseudoflavor)) - return pseudoflavor; - break; + /* does the pseudoflavor match a sec= mount opt? */ + if (pflavor != RPC_AUTH_MAXFLAVOR && + nfs_auth_info_match(&server->auth_info, pflavor)) { + struct rpc_clnt *new; + struct rpc_cred *cred; + + /* Cloning creates an rpc_auth for the flavor */ + new = rpc_clone_client_set_auth(clnt, pflavor); + if (IS_ERR(new)) + continue; + /** + * Check that the user actually can use the + * flavor. This is mostly for RPC_AUTH_GSS + * where cr_init obtains a gss context + */ + cred = rpcauth_lookupcred(new->cl_auth, 0); + if (IS_ERR(cred)) { + rpc_shutdown_client(new); + continue; + } + put_rpccred(cred); + return new; + } } } - - /* if there were any sec= options then nothing matched */ - if (server->auth_info.flavor_len > 0) - return -EPERM; - - return RPC_AUTH_UNIX; + return ERR_PTR(-EPERM); } -static rpc_authflavor_t nfs4_negotiate_security(struct inode *inode, struct qstr *name) +/** + * nfs4_negotiate_security - in response to an NFS4ERR_WRONGSEC on lookup, + * return an rpc_clnt that uses the best available security flavor with + * respect to the secinfo flavor list and the sec= mount options. + * + * @clnt: RPC client to clone + * @inode: directory inode + * @name: lookup name + * + * Please call rpc_shutdown_client() when you are done with this rpc client. + */ +struct rpc_clnt * +nfs4_negotiate_security(struct rpc_clnt *clnt, struct inode *inode, + struct qstr *name) { struct page *page; struct nfs4_secinfo_flavors *flavors; - rpc_authflavor_t flavor; + struct rpc_clnt *new; int err; page = alloc_page(GFP_KERNEL); if (!page) - return -ENOMEM; + return ERR_PTR(-ENOMEM); + flavors = page_address(page); err = nfs4_proc_secinfo(inode, name, flavors); if (err < 0) { - flavor = err; + new = ERR_PTR(err); goto out; } - flavor = nfs_find_best_sec(NFS_SERVER(inode), flavors); + new = nfs_find_best_sec(clnt, NFS_SERVER(inode), flavors); out: put_page(page); - return flavor; -} - -/* - * Please call rpc_shutdown_client() when you are done with this client. - */ -struct rpc_clnt *nfs4_create_sec_client(struct rpc_clnt *clnt, struct inode *inode, - struct qstr *name) -{ - rpc_authflavor_t flavor; - - flavor = nfs4_negotiate_security(inode, name); - if ((int)flavor < 0) - return ERR_PTR((int)flavor); - - return rpc_clone_client_set_auth(clnt, flavor); + return new; } static struct vfsmount *try_location(struct nfs_clone_mount *mountdata, @@ -397,11 +414,6 @@ struct vfsmount *nfs4_submount(struct nfs_server *server, struct dentry *dentry, if (client->cl_auth->au_flavor != flavor) flavor = client->cl_auth->au_flavor; - else { - rpc_authflavor_t new = nfs4_negotiate_security(dir, name); - if ((int)new >= 0) - flavor = new; - } mnt = nfs_do_submount(dentry, fh, fattr, flavor); out: rpc_shutdown_client(client); diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index 285ad5334018..4bf3d97cc5a0 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -3247,7 +3247,7 @@ static int nfs4_proc_lookup_common(struct rpc_clnt **clnt, struct inode *dir, err = -EPERM; if (client != *clnt) goto out; - client = nfs4_create_sec_client(client, dir, name); + client = nfs4_negotiate_security(client, dir, name); if (IS_ERR(client)) return PTR_ERR(client); diff --git a/fs/nfs/write.c b/fs/nfs/write.c index 3ee5af4e738e..98ff061ccaf3 100644 --- a/fs/nfs/write.c +++ b/fs/nfs/write.c @@ -934,12 +934,14 @@ static bool nfs_write_pageuptodate(struct page *page, struct inode *inode) if (nfs_have_delegated_attributes(inode)) goto out; - if (nfsi->cache_validity & (NFS_INO_INVALID_DATA|NFS_INO_REVAL_PAGECACHE)) + if (nfsi->cache_validity & NFS_INO_REVAL_PAGECACHE) return false; smp_rmb(); if (test_bit(NFS_INO_INVALIDATING, &nfsi->flags)) return false; out: + if (nfsi->cache_validity & NFS_INO_INVALID_DATA) + return false; return PageUptodate(page) != 0; } diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c index 6851b003f2a4..8f029db5d271 100644 --- a/fs/nfsd/nfs4proc.c +++ b/fs/nfsd/nfs4proc.c @@ -617,15 +617,6 @@ nfsd4_create(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, switch (create->cr_type) { case NF4LNK: - /* ugh! we have to null-terminate the linktext, or - * vfs_symlink() will choke. it is always safe to - * null-terminate by brute force, since at worst we - * will overwrite the first byte of the create namelen - * in the XDR buffer, which has already been extracted - * during XDR decode. - */ - create->cr_linkname[create->cr_linklen] = 0; - status = nfsd_symlink(rqstp, &cstate->current_fh, create->cr_name, create->cr_namelen, create->cr_linkname, create->cr_linklen, diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c index 83baf2bfe9e9..2fc7abebeb9b 100644 --- a/fs/nfsd/nfs4xdr.c +++ b/fs/nfsd/nfs4xdr.c @@ -600,7 +600,18 @@ nfsd4_decode_create(struct nfsd4_compoundargs *argp, struct nfsd4_create *create READ_BUF(4); create->cr_linklen = be32_to_cpup(p++); READ_BUF(create->cr_linklen); - SAVEMEM(create->cr_linkname, create->cr_linklen); + /* + * The VFS will want a null-terminated string, and + * null-terminating in place isn't safe since this might + * end on a page boundary: + */ + create->cr_linkname = + kmalloc(create->cr_linklen + 1, GFP_KERNEL); + if (!create->cr_linkname) + return nfserr_jukebox; + memcpy(create->cr_linkname, p, create->cr_linklen); + create->cr_linkname[create->cr_linklen] = '\0'; + defer_free(argp, kfree, create->cr_linkname); break; case NF4BLK: case NF4CHR: @@ -3267,7 +3278,7 @@ nfsd4_encode_readlink(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd wire_count = htonl(maxcount); write_bytes_to_xdr_buf(xdr->buf, length_offset, &wire_count, 4); - xdr_truncate_encode(xdr, length_offset + 4 + maxcount); + xdr_truncate_encode(xdr, length_offset + 4 + ALIGN(maxcount, 4)); if (maxcount & 3) write_bytes_to_xdr_buf(xdr->buf, length_offset + 4 + maxcount, &zero, 4 - (maxcount&3)); diff --git a/fs/ocfs2/dlm/dlmcommon.h b/fs/ocfs2/dlm/dlmcommon.h index a106b3f2b22a..fae17c640df3 100644 --- a/fs/ocfs2/dlm/dlmcommon.h +++ b/fs/ocfs2/dlm/dlmcommon.h @@ -331,6 +331,7 @@ struct dlm_lock_resource u16 state; char lvb[DLM_LVB_LEN]; unsigned int inflight_locks; + unsigned int inflight_assert_workers; unsigned long refmap[BITS_TO_LONGS(O2NM_MAX_NODES)]; }; @@ -910,6 +911,9 @@ void dlm_lockres_drop_inflight_ref(struct dlm_ctxt *dlm, void dlm_lockres_grab_inflight_ref(struct dlm_ctxt *dlm, struct dlm_lock_resource *res); +void __dlm_lockres_grab_inflight_worker(struct dlm_ctxt *dlm, + struct dlm_lock_resource *res); + void dlm_queue_ast(struct dlm_ctxt *dlm, struct dlm_lock *lock); void dlm_queue_bast(struct dlm_ctxt *dlm, struct dlm_lock *lock); void __dlm_queue_ast(struct dlm_ctxt *dlm, struct dlm_lock *lock); diff --git a/fs/ocfs2/dlm/dlmmaster.c b/fs/ocfs2/dlm/dlmmaster.c index 3087a21d32f9..82abf0cc9a12 100644 --- a/fs/ocfs2/dlm/dlmmaster.c +++ b/fs/ocfs2/dlm/dlmmaster.c @@ -581,6 +581,7 @@ static void dlm_init_lockres(struct dlm_ctxt *dlm, atomic_set(&res->asts_reserved, 0); res->migration_pending = 0; res->inflight_locks = 0; + res->inflight_assert_workers = 0; res->dlm = dlm; @@ -683,6 +684,43 @@ void dlm_lockres_drop_inflight_ref(struct dlm_ctxt *dlm, wake_up(&res->wq); } +void __dlm_lockres_grab_inflight_worker(struct dlm_ctxt *dlm, + struct dlm_lock_resource *res) +{ + assert_spin_locked(&res->spinlock); + res->inflight_assert_workers++; + mlog(0, "%s:%.*s: inflight assert worker++: now %u\n", + dlm->name, res->lockname.len, res->lockname.name, + res->inflight_assert_workers); +} + +static void dlm_lockres_grab_inflight_worker(struct dlm_ctxt *dlm, + struct dlm_lock_resource *res) +{ + spin_lock(&res->spinlock); + __dlm_lockres_grab_inflight_worker(dlm, res); + spin_unlock(&res->spinlock); +} + +static void __dlm_lockres_drop_inflight_worker(struct dlm_ctxt *dlm, + struct dlm_lock_resource *res) +{ + assert_spin_locked(&res->spinlock); + BUG_ON(res->inflight_assert_workers == 0); + res->inflight_assert_workers--; + mlog(0, "%s:%.*s: inflight assert worker--: now %u\n", + dlm->name, res->lockname.len, res->lockname.name, + res->inflight_assert_workers); +} + +static void dlm_lockres_drop_inflight_worker(struct dlm_ctxt *dlm, + struct dlm_lock_resource *res) +{ + spin_lock(&res->spinlock); + __dlm_lockres_drop_inflight_worker(dlm, res); + spin_unlock(&res->spinlock); +} + /* * lookup a lock resource by name. * may already exist in the hashtable. @@ -1603,7 +1641,8 @@ send_response: mlog(ML_ERROR, "failed to dispatch assert master work\n"); response = DLM_MASTER_RESP_ERROR; dlm_lockres_put(res); - } + } else + dlm_lockres_grab_inflight_worker(dlm, res); } else { if (res) dlm_lockres_put(res); @@ -2118,6 +2157,8 @@ static void dlm_assert_master_worker(struct dlm_work_item *item, void *data) dlm_lockres_release_ast(dlm, res); put: + dlm_lockres_drop_inflight_worker(dlm, res); + dlm_lockres_put(res); mlog(0, "finished with dlm_assert_master_worker\n"); @@ -3088,11 +3129,15 @@ static int dlm_add_migration_mle(struct dlm_ctxt *dlm, /* remove it so that only one mle will be found */ __dlm_unlink_mle(dlm, tmp); __dlm_mle_detach_hb_events(dlm, tmp); - ret = DLM_MIGRATE_RESPONSE_MASTERY_REF; - mlog(0, "%s:%.*s: master=%u, newmaster=%u, " - "telling master to get ref for cleared out mle " - "during migration\n", dlm->name, namelen, name, - master, new_master); + if (tmp->type == DLM_MLE_MASTER) { + ret = DLM_MIGRATE_RESPONSE_MASTERY_REF; + mlog(0, "%s:%.*s: master=%u, newmaster=%u, " + "telling master to get ref " + "for cleared out mle during " + "migration\n", dlm->name, + namelen, name, master, + new_master); + } } spin_unlock(&tmp->spinlock); } diff --git a/fs/ocfs2/dlm/dlmrecovery.c b/fs/ocfs2/dlm/dlmrecovery.c index 5de019437ea5..45067faf5695 100644 --- a/fs/ocfs2/dlm/dlmrecovery.c +++ b/fs/ocfs2/dlm/dlmrecovery.c @@ -1708,7 +1708,8 @@ int dlm_master_requery_handler(struct o2net_msg *msg, u32 len, void *data, mlog_errno(-ENOMEM); /* retry!? */ BUG(); - } + } else + __dlm_lockres_grab_inflight_worker(dlm, res); } else /* put.. incase we are not the master */ dlm_lockres_put(res); spin_unlock(&res->spinlock); diff --git a/fs/ocfs2/dlm/dlmthread.c b/fs/ocfs2/dlm/dlmthread.c index 9db869de829d..69aac6f088ad 100644 --- a/fs/ocfs2/dlm/dlmthread.c +++ b/fs/ocfs2/dlm/dlmthread.c @@ -259,12 +259,15 @@ static void dlm_run_purge_list(struct dlm_ctxt *dlm, * refs on it. */ unused = __dlm_lockres_unused(lockres); if (!unused || - (lockres->state & DLM_LOCK_RES_MIGRATING)) { + (lockres->state & DLM_LOCK_RES_MIGRATING) || + (lockres->inflight_assert_workers != 0)) { mlog(0, "%s: res %.*s is in use or being remastered, " - "used %d, state %d\n", dlm->name, - lockres->lockname.len, lockres->lockname.name, - !unused, lockres->state); - list_move_tail(&dlm->purge_list, &lockres->purge); + "used %d, state %d, assert master workers %u\n", + dlm->name, lockres->lockname.len, + lockres->lockname.name, + !unused, lockres->state, + lockres->inflight_assert_workers); + list_move_tail(&lockres->purge, &dlm->purge_list); spin_unlock(&lockres->spinlock); continue; } diff --git a/fs/ocfs2/dlm/dlmunlock.c b/fs/ocfs2/dlm/dlmunlock.c index 5698b52cf5c9..2e3c9dbab68c 100644 --- a/fs/ocfs2/dlm/dlmunlock.c +++ b/fs/ocfs2/dlm/dlmunlock.c @@ -191,7 +191,9 @@ static enum dlm_status dlmunlock_common(struct dlm_ctxt *dlm, DLM_UNLOCK_CLEAR_CONVERT_TYPE); } else if (status == DLM_RECOVERING || status == DLM_MIGRATING || - status == DLM_FORWARD) { + status == DLM_FORWARD || + status == DLM_NOLOCKMGR + ) { /* must clear the actions because this unlock * is about to be retried. cannot free or do * any list manipulation. */ @@ -200,7 +202,8 @@ static enum dlm_status dlmunlock_common(struct dlm_ctxt *dlm, res->lockname.name, status==DLM_RECOVERING?"recovering": (status==DLM_MIGRATING?"migrating": - "forward")); + (status == DLM_FORWARD ? "forward" : + "nolockmanager"))); actions = 0; } if (flags & LKM_CANCEL) @@ -364,7 +367,10 @@ static enum dlm_status dlm_send_remote_unlock_request(struct dlm_ctxt *dlm, * updated state to the recovery master. this thread * just needs to finish out the operation and call * the unlockast. */ - ret = DLM_NORMAL; + if (dlm_is_node_dead(dlm, owner)) + ret = DLM_NORMAL; + else + ret = DLM_NOLOCKMGR; } else { /* something bad. this will BUG in ocfs2 */ ret = dlm_err_to_dlm_status(tmpret); @@ -638,7 +644,9 @@ retry: if (status == DLM_RECOVERING || status == DLM_MIGRATING || - status == DLM_FORWARD) { + status == DLM_FORWARD || + status == DLM_NOLOCKMGR) { + /* We want to go away for a tiny bit to allow recovery * / migration to complete on this resource. I don't * know of any wait queue we could sleep on as this @@ -650,7 +658,7 @@ retry: msleep(50); mlog(0, "retrying unlock due to pending recovery/" - "migration/in-progress\n"); + "migration/in-progress/reconnect\n"); goto retry; } diff --git a/fs/ocfs2/namei.c b/fs/ocfs2/namei.c index 2060fc398445..8add6f1030d7 100644 --- a/fs/ocfs2/namei.c +++ b/fs/ocfs2/namei.c @@ -205,6 +205,21 @@ static struct inode *ocfs2_get_init_inode(struct inode *dir, umode_t mode) return inode; } +static void ocfs2_cleanup_add_entry_failure(struct ocfs2_super *osb, + struct dentry *dentry, struct inode *inode) +{ + struct ocfs2_dentry_lock *dl = dentry->d_fsdata; + + ocfs2_simple_drop_lockres(osb, &dl->dl_lockres); + ocfs2_lock_res_free(&dl->dl_lockres); + BUG_ON(dl->dl_count != 1); + spin_lock(&dentry_attach_lock); + dentry->d_fsdata = NULL; + spin_unlock(&dentry_attach_lock); + kfree(dl); + iput(inode); +} + static int ocfs2_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, @@ -231,6 +246,7 @@ static int ocfs2_mknod(struct inode *dir, sigset_t oldset; int did_block_signals = 0; struct posix_acl *default_acl = NULL, *acl = NULL; + struct ocfs2_dentry_lock *dl = NULL; trace_ocfs2_mknod(dir, dentry, dentry->d_name.len, dentry->d_name.name, (unsigned long long)OCFS2_I(dir)->ip_blkno, @@ -423,6 +439,8 @@ static int ocfs2_mknod(struct inode *dir, goto leave; } + dl = dentry->d_fsdata; + status = ocfs2_add_entry(handle, dentry, inode, OCFS2_I(inode)->ip_blkno, parent_fe_bh, &lookup); @@ -469,6 +487,9 @@ leave: * ocfs2_delete_inode will mutex_lock again. */ if ((status < 0) && inode) { + if (dl) + ocfs2_cleanup_add_entry_failure(osb, dentry, inode); + OCFS2_I(inode)->ip_flags |= OCFS2_INODE_SKIP_ORPHAN_DIR; clear_nlink(inode); iput(inode); @@ -991,6 +1012,65 @@ leave: return status; } +static int ocfs2_check_if_ancestor(struct ocfs2_super *osb, + u64 src_inode_no, u64 dest_inode_no) +{ + int ret = 0, i = 0; + u64 parent_inode_no = 0; + u64 child_inode_no = src_inode_no; + struct inode *child_inode; + +#define MAX_LOOKUP_TIMES 32 + while (1) { + child_inode = ocfs2_iget(osb, child_inode_no, 0, 0); + if (IS_ERR(child_inode)) { + ret = PTR_ERR(child_inode); + break; + } + + ret = ocfs2_inode_lock(child_inode, NULL, 0); + if (ret < 0) { + iput(child_inode); + if (ret != -ENOENT) + mlog_errno(ret); + break; + } + + ret = ocfs2_lookup_ino_from_name(child_inode, "..", 2, + &parent_inode_no); + ocfs2_inode_unlock(child_inode, 0); + iput(child_inode); + if (ret < 0) { + ret = -ENOENT; + break; + } + + if (parent_inode_no == dest_inode_no) { + ret = 1; + break; + } + + if (parent_inode_no == osb->root_inode->i_ino) { + ret = 0; + break; + } + + child_inode_no = parent_inode_no; + + if (++i >= MAX_LOOKUP_TIMES) { + mlog(ML_NOTICE, "max lookup times reached, filesystem " + "may have nested directories, " + "src inode: %llu, dest inode: %llu.\n", + (unsigned long long)src_inode_no, + (unsigned long long)dest_inode_no); + ret = 0; + break; + } + } + + return ret; +} + /* * The only place this should be used is rename! * if they have the same id, then the 1st one is the only one locked. @@ -1002,6 +1082,7 @@ static int ocfs2_double_lock(struct ocfs2_super *osb, struct inode *inode2) { int status; + int inode1_is_ancestor, inode2_is_ancestor; struct ocfs2_inode_info *oi1 = OCFS2_I(inode1); struct ocfs2_inode_info *oi2 = OCFS2_I(inode2); struct buffer_head **tmpbh; @@ -1015,9 +1096,26 @@ static int ocfs2_double_lock(struct ocfs2_super *osb, if (*bh2) *bh2 = NULL; - /* we always want to lock the one with the lower lockid first. */ + /* we always want to lock the one with the lower lockid first. + * and if they are nested, we lock ancestor first */ if (oi1->ip_blkno != oi2->ip_blkno) { - if (oi1->ip_blkno < oi2->ip_blkno) { + inode1_is_ancestor = ocfs2_check_if_ancestor(osb, oi2->ip_blkno, + oi1->ip_blkno); + if (inode1_is_ancestor < 0) { + status = inode1_is_ancestor; + goto bail; + } + + inode2_is_ancestor = ocfs2_check_if_ancestor(osb, oi1->ip_blkno, + oi2->ip_blkno); + if (inode2_is_ancestor < 0) { + status = inode2_is_ancestor; + goto bail; + } + + if ((inode1_is_ancestor == 1) || + (oi1->ip_blkno < oi2->ip_blkno && + inode2_is_ancestor == 0)) { /* switch id1 and id2 around */ tmpbh = bh2; bh2 = bh1; @@ -1098,6 +1196,7 @@ static int ocfs2_rename(struct inode *old_dir, struct ocfs2_dir_lookup_result old_entry_lookup = { NULL, }; struct ocfs2_dir_lookup_result orphan_insert = { NULL, }; struct ocfs2_dir_lookup_result target_insert = { NULL, }; + bool should_add_orphan = false; /* At some point it might be nice to break this function up a * bit. */ @@ -1134,6 +1233,21 @@ static int ocfs2_rename(struct inode *old_dir, goto bail; } rename_lock = 1; + + /* here we cannot guarantee the inodes haven't just been + * changed, so check if they are nested again */ + status = ocfs2_check_if_ancestor(osb, new_dir->i_ino, + old_inode->i_ino); + if (status < 0) { + mlog_errno(status); + goto bail; + } else if (status == 1) { + status = -EPERM; + trace_ocfs2_rename_not_permitted( + (unsigned long long)old_inode->i_ino, + (unsigned long long)new_dir->i_ino); + goto bail; + } } /* if old and new are the same, this'll just do one lock. */ @@ -1304,6 +1418,7 @@ static int ocfs2_rename(struct inode *old_dir, mlog_errno(status); goto bail; } + should_add_orphan = true; } } else { BUG_ON(new_dentry->d_parent->d_inode != new_dir); @@ -1348,17 +1463,6 @@ static int ocfs2_rename(struct inode *old_dir, goto bail; } - if (S_ISDIR(new_inode->i_mode) || - (ocfs2_read_links_count(newfe) == 1)) { - status = ocfs2_orphan_add(osb, handle, new_inode, - newfe_bh, orphan_name, - &orphan_insert, orphan_dir); - if (status < 0) { - mlog_errno(status); - goto bail; - } - } - /* change the dirent to point to the correct inode */ status = ocfs2_update_entry(new_dir, handle, &target_lookup_res, old_inode); @@ -1373,6 +1477,15 @@ static int ocfs2_rename(struct inode *old_dir, else ocfs2_add_links_count(newfe, -1); ocfs2_journal_dirty(handle, newfe_bh); + if (should_add_orphan) { + status = ocfs2_orphan_add(osb, handle, new_inode, + newfe_bh, orphan_name, + &orphan_insert, orphan_dir); + if (status < 0) { + mlog_errno(status); + goto bail; + } + } } else { /* if the name was not found in new_dir, add it now */ status = ocfs2_add_entry(handle, new_dentry, old_inode, @@ -1642,6 +1755,7 @@ static int ocfs2_symlink(struct inode *dir, struct ocfs2_dir_lookup_result lookup = { NULL, }; sigset_t oldset; int did_block_signals = 0; + struct ocfs2_dentry_lock *dl = NULL; trace_ocfs2_symlink_begin(dir, dentry, symname, dentry->d_name.len, dentry->d_name.name); @@ -1830,6 +1944,8 @@ static int ocfs2_symlink(struct inode *dir, goto bail; } + dl = dentry->d_fsdata; + status = ocfs2_add_entry(handle, dentry, inode, le64_to_cpu(fe->i_blkno), parent_fe_bh, &lookup); @@ -1864,6 +1980,9 @@ bail: if (xattr_ac) ocfs2_free_alloc_context(xattr_ac); if ((status < 0) && inode) { + if (dl) + ocfs2_cleanup_add_entry_failure(osb, dentry, inode); + OCFS2_I(inode)->ip_flags |= OCFS2_INODE_SKIP_ORPHAN_DIR; clear_nlink(inode); iput(inode); diff --git a/fs/ocfs2/ocfs2_trace.h b/fs/ocfs2/ocfs2_trace.h index 1b60c62aa9d6..6cb019b7c6a8 100644 --- a/fs/ocfs2/ocfs2_trace.h +++ b/fs/ocfs2/ocfs2_trace.h @@ -2292,6 +2292,8 @@ TRACE_EVENT(ocfs2_rename, __entry->new_len, __get_str(new_name)) ); +DEFINE_OCFS2_ULL_ULL_EVENT(ocfs2_rename_not_permitted); + TRACE_EVENT(ocfs2_rename_target_exists, TP_PROTO(int new_len, const char *new_name), TP_ARGS(new_len, new_name), diff --git a/fs/ocfs2/refcounttree.c b/fs/ocfs2/refcounttree.c index 714e53b9cc66..636aab69ead5 100644 --- a/fs/ocfs2/refcounttree.c +++ b/fs/ocfs2/refcounttree.c @@ -4288,9 +4288,16 @@ static int ocfs2_reflink(struct dentry *old_dentry, struct inode *dir, goto out; } + error = ocfs2_rw_lock(inode, 1); + if (error) { + mlog_errno(error); + goto out; + } + error = ocfs2_inode_lock(inode, &old_bh, 1); if (error) { mlog_errno(error); + ocfs2_rw_unlock(inode, 1); goto out; } @@ -4302,6 +4309,7 @@ static int ocfs2_reflink(struct dentry *old_dentry, struct inode *dir, up_write(&OCFS2_I(inode)->ip_xattr_sem); ocfs2_inode_unlock(inode, 1); + ocfs2_rw_unlock(inode, 1); brelse(old_bh); if (error) { diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c index c7a89cea5c5d..ddb662b32447 100644 --- a/fs/ocfs2/super.c +++ b/fs/ocfs2/super.c @@ -1925,15 +1925,11 @@ static void ocfs2_dismount_volume(struct super_block *sb, int mnt_err) ocfs2_shutdown_local_alloc(osb); + ocfs2_truncate_log_shutdown(osb); + /* This will disable recovery and flush any recovery work. */ ocfs2_recovery_exit(osb); - /* - * During dismount, when it recovers another node it will call - * ocfs2_recover_orphans and queue delayed work osb_truncate_log_wq. - */ - ocfs2_truncate_log_shutdown(osb); - ocfs2_journal_shutdown(osb); ocfs2_sync_blockdev(sb); diff --git a/fs/proc/stat.c b/fs/proc/stat.c index 9d231e9e5f0e..bf2d03f8fd3e 100644 --- a/fs/proc/stat.c +++ b/fs/proc/stat.c @@ -184,29 +184,11 @@ static int show_stat(struct seq_file *p, void *v) static int stat_open(struct inode *inode, struct file *file) { - size_t size = 1024 + 128 * num_possible_cpus(); - char *buf; - struct seq_file *m; - int res; + size_t size = 1024 + 128 * num_online_cpus(); /* minimum size to display an interrupt count : 2 bytes */ size += 2 * nr_irqs; - - /* don't ask for more than the kmalloc() max size */ - if (size > KMALLOC_MAX_SIZE) - size = KMALLOC_MAX_SIZE; - buf = kmalloc(size, GFP_KERNEL); - if (!buf) - return -ENOMEM; - - res = single_open(file, show_stat, NULL); - if (!res) { - m = file->private_data; - m->buf = buf; - m->size = ksize(buf); - } else - kfree(buf); - return res; + return single_open_size(file, show_stat, NULL, size); } static const struct file_operations proc_stat_operations = { diff --git a/fs/seq_file.c b/fs/seq_file.c index 1d641bb108d2..3857b720cb1b 100644 --- a/fs/seq_file.c +++ b/fs/seq_file.c @@ -8,8 +8,10 @@ #include <linux/fs.h> #include <linux/export.h> #include <linux/seq_file.h> +#include <linux/vmalloc.h> #include <linux/slab.h> #include <linux/cred.h> +#include <linux/mm.h> #include <asm/uaccess.h> #include <asm/page.h> @@ -30,6 +32,16 @@ static void seq_set_overflow(struct seq_file *m) m->count = m->size; } +static void *seq_buf_alloc(unsigned long size) +{ + void *buf; + + buf = kmalloc(size, GFP_KERNEL | __GFP_NOWARN); + if (!buf && size > PAGE_SIZE) + buf = vmalloc(size); + return buf; +} + /** * seq_open - initialize sequential file * @file: file we initialize @@ -96,7 +108,7 @@ static int traverse(struct seq_file *m, loff_t offset) return 0; } if (!m->buf) { - m->buf = kmalloc(m->size = PAGE_SIZE, GFP_KERNEL); + m->buf = seq_buf_alloc(m->size = PAGE_SIZE); if (!m->buf) return -ENOMEM; } @@ -135,9 +147,9 @@ static int traverse(struct seq_file *m, loff_t offset) Eoverflow: m->op->stop(m, p); - kfree(m->buf); + kvfree(m->buf); m->count = 0; - m->buf = kmalloc(m->size <<= 1, GFP_KERNEL); + m->buf = seq_buf_alloc(m->size <<= 1); return !m->buf ? -ENOMEM : -EAGAIN; } @@ -192,7 +204,7 @@ ssize_t seq_read(struct file *file, char __user *buf, size_t size, loff_t *ppos) /* grab buffer if we didn't have one */ if (!m->buf) { - m->buf = kmalloc(m->size = PAGE_SIZE, GFP_KERNEL); + m->buf = seq_buf_alloc(m->size = PAGE_SIZE); if (!m->buf) goto Enomem; } @@ -232,9 +244,9 @@ ssize_t seq_read(struct file *file, char __user *buf, size_t size, loff_t *ppos) if (m->count < m->size) goto Fill; m->op->stop(m, p); - kfree(m->buf); + kvfree(m->buf); m->count = 0; - m->buf = kmalloc(m->size <<= 1, GFP_KERNEL); + m->buf = seq_buf_alloc(m->size <<= 1); if (!m->buf) goto Enomem; m->version = 0; @@ -350,7 +362,7 @@ EXPORT_SYMBOL(seq_lseek); int seq_release(struct inode *inode, struct file *file) { struct seq_file *m = file->private_data; - kfree(m->buf); + kvfree(m->buf); kfree(m); return 0; } @@ -605,13 +617,13 @@ EXPORT_SYMBOL(single_open); int single_open_size(struct file *file, int (*show)(struct seq_file *, void *), void *data, size_t size) { - char *buf = kmalloc(size, GFP_KERNEL); + char *buf = seq_buf_alloc(size); int ret; if (!buf) return -ENOMEM; ret = single_open(file, show, data); if (ret) { - kfree(buf); + kvfree(buf); return ret; } ((struct seq_file *)file->private_data)->buf = buf; diff --git a/include/drm/i915_pciids.h b/include/drm/i915_pciids.h index 0572035673f3..a70d45647898 100644 --- a/include/drm/i915_pciids.h +++ b/include/drm/i915_pciids.h @@ -237,13 +237,21 @@ #define INTEL_BDW_GT3D_IDS(info) \ _INTEL_BDW_D_IDS(3, info) +#define INTEL_BDW_RSVDM_IDS(info) \ + _INTEL_BDW_M_IDS(4, info) + +#define INTEL_BDW_RSVDD_IDS(info) \ + _INTEL_BDW_D_IDS(4, info) + #define INTEL_BDW_M_IDS(info) \ INTEL_BDW_GT12M_IDS(info), \ - INTEL_BDW_GT3M_IDS(info) + INTEL_BDW_GT3M_IDS(info), \ + INTEL_BDW_RSVDM_IDS(info) #define INTEL_BDW_D_IDS(info) \ INTEL_BDW_GT12D_IDS(info), \ - INTEL_BDW_GT3D_IDS(info) + INTEL_BDW_GT3D_IDS(info), \ + INTEL_BDW_RSVDD_IDS(info) #define INTEL_CHV_IDS(info) \ INTEL_VGA_DEVICE(0x22b0, info), \ diff --git a/include/dt-bindings/clock/imx6sl-clock.h b/include/dt-bindings/clock/imx6sl-clock.h index 7cf5c9969336..b91dd462ba85 100644 --- a/include/dt-bindings/clock/imx6sl-clock.h +++ b/include/dt-bindings/clock/imx6sl-clock.h @@ -145,6 +145,7 @@ #define IMX6SL_CLK_USDHC4 132 #define IMX6SL_CLK_PLL4_AUDIO_DIV 133 #define IMX6SL_CLK_SPBA 134 -#define IMX6SL_CLK_END 135 +#define IMX6SL_CLK_ENET 135 +#define IMX6SL_CLK_END 136 #endif /* __DT_BINDINGS_CLOCK_IMX6SL_H */ diff --git a/include/dt-bindings/clock/stih415-clks.h b/include/dt-bindings/clock/stih415-clks.h index 0d2c7397e028..d80caa68aebd 100644 --- a/include/dt-bindings/clock/stih415-clks.h +++ b/include/dt-bindings/clock/stih415-clks.h @@ -10,6 +10,7 @@ #define CLK_ETH1_PHY 4 /* CLOCKGEN A1 */ +#define CLK_ICN_IF_2 0 #define CLK_GMAC0_PHY 3 #endif diff --git a/include/dt-bindings/clock/stih416-clks.h b/include/dt-bindings/clock/stih416-clks.h index 552c779eb6af..f9bdbd13568d 100644 --- a/include/dt-bindings/clock/stih416-clks.h +++ b/include/dt-bindings/clock/stih416-clks.h @@ -10,6 +10,7 @@ #define CLK_ETH1_PHY 4 /* CLOCKGEN A1 */ +#define CLK_ICN_IF_2 0 #define CLK_GMAC0_PHY 3 #endif diff --git a/include/linux/bio.h b/include/linux/bio.h index 5a645769f020..d2633ee099d9 100644 --- a/include/linux/bio.h +++ b/include/linux/bio.h @@ -186,6 +186,15 @@ static inline void *bio_data(struct bio *bio) #define BIOVEC_SEG_BOUNDARY(q, b1, b2) \ __BIO_SEG_BOUNDARY(bvec_to_phys((b1)), bvec_to_phys((b2)) + (b2)->bv_len, queue_segment_boundary((q))) +/* + * Check if adding a bio_vec after bprv with offset would create a gap in + * the SG list. Most drivers don't care about this, but some do. + */ +static inline bool bvec_gap_to_prev(struct bio_vec *bprv, unsigned int offset) +{ + return offset || ((bprv->bv_offset + bprv->bv_len) & (PAGE_SIZE - 1)); +} + #define bio_io_error(bio) bio_endio((bio), -EIO) /* @@ -644,10 +653,6 @@ struct biovec_slab { #if defined(CONFIG_BLK_DEV_INTEGRITY) - - -#define bip_vec_idx(bip, idx) (&(bip->bip_vec[(idx)])) - #define bip_for_each_vec(bvl, bip, iter) \ for_each_bvec(bvl, (bip)->bip_vec, iter, (bip)->bip_iter) diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 713f8b62b435..8699bcf5f099 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -512,6 +512,7 @@ struct request_queue { #define QUEUE_FLAG_DEAD 19 /* queue tear-down finished */ #define QUEUE_FLAG_INIT_DONE 20 /* queue is initialized */ #define QUEUE_FLAG_NO_SG_MERGE 21 /* don't attempt to merge SG segments*/ +#define QUEUE_FLAG_SG_GAPS 22 /* queue doesn't support SG gaps */ #define QUEUE_FLAG_DEFAULT ((1 << QUEUE_FLAG_IO_STAT) | \ (1 << QUEUE_FLAG_STACKABLE) | \ diff --git a/include/linux/elevator.h b/include/linux/elevator.h index e2a6bd7fb133..45a91474487d 100644 --- a/include/linux/elevator.h +++ b/include/linux/elevator.h @@ -143,7 +143,7 @@ extern void elv_drain_elevator(struct request_queue *); * io scheduler registration */ extern void __init load_default_elevator_module(void); -extern int __init elv_register(struct elevator_type *); +extern int elv_register(struct elevator_type *); extern void elv_unregister(struct elevator_type *); /* diff --git a/include/linux/kernfs.h b/include/linux/kernfs.h index 17aa1cce6f8e..145375ea0bd9 100644 --- a/include/linux/kernfs.h +++ b/include/linux/kernfs.h @@ -91,6 +91,7 @@ struct kernfs_elem_attr { const struct kernfs_ops *ops; struct kernfs_open_node *open; loff_t size; + struct kernfs_node *notify_next; /* for kernfs_notify() */ }; /* diff --git a/include/linux/nmi.h b/include/linux/nmi.h index 6a45fb583ff1..447775ee2c4b 100644 --- a/include/linux/nmi.h +++ b/include/linux/nmi.h @@ -32,15 +32,24 @@ static inline void touch_nmi_watchdog(void) #ifdef arch_trigger_all_cpu_backtrace static inline bool trigger_all_cpu_backtrace(void) { - arch_trigger_all_cpu_backtrace(); + arch_trigger_all_cpu_backtrace(true); return true; } +static inline bool trigger_allbutself_cpu_backtrace(void) +{ + arch_trigger_all_cpu_backtrace(false); + return true; +} #else static inline bool trigger_all_cpu_backtrace(void) { return false; } +static inline bool trigger_allbutself_cpu_backtrace(void) +{ + return false; +} #endif #ifdef CONFIG_LOCKUP_DETECTOR @@ -48,6 +57,7 @@ int hw_nmi_is_cpu_stuck(struct pt_regs *); u64 hw_nmi_get_sample_period(int watchdog_thresh); extern int watchdog_user_enabled; extern int watchdog_thresh; +extern int sysctl_softlockup_all_cpu_backtrace; struct ctl_table; extern int proc_dowatchdog(struct ctl_table *, int , void __user *, size_t *, loff_t *); diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h index 3c545b48aeab..8304959ad336 100644 --- a/include/linux/page-flags.h +++ b/include/linux/page-flags.h @@ -360,6 +360,9 @@ static inline void ClearPageCompound(struct page *page) ClearPageHead(page); } #endif + +#define PG_head_mask ((1L << PG_head)) + #else /* * Reduce page flag use as much as possible by overlapping diff --git a/include/linux/phy.h b/include/linux/phy.h index 864ddafad8cc..68041446c450 100644 --- a/include/linux/phy.h +++ b/include/linux/phy.h @@ -536,6 +536,15 @@ struct phy_driver { /* See set_wol, but for checking whether Wake on LAN is enabled. */ void (*get_wol)(struct phy_device *dev, struct ethtool_wolinfo *wol); + /* + * Called to inform a PHY device driver when the core is about to + * change the link state. This callback is supposed to be used as + * fixup hook for drivers that need to take action when the link + * state changes. Drivers are by no means allowed to mess with the + * PHY device structure in their implementations. + */ + void (*link_change_notify)(struct phy_device *dev); + struct device_driver driver; }; #define to_phy_driver(d) container_of(d, struct phy_driver, driver) diff --git a/include/linux/ptrace.h b/include/linux/ptrace.h index 077904c8b70d..cc79eff4a1ad 100644 --- a/include/linux/ptrace.h +++ b/include/linux/ptrace.h @@ -334,6 +334,9 @@ static inline void user_single_step_siginfo(struct task_struct *tsk, * calling arch_ptrace_stop() when it would be superfluous. For example, * if the thread has not been back to user mode since the last stop, the * thread state might indicate that nothing needs to be done. + * + * This is guaranteed to be invoked once before a task stops for ptrace and + * may include arch-specific operations necessary prior to a ptrace stop. */ #define arch_ptrace_stop_needed(code, info) (0) #endif diff --git a/include/linux/socket.h b/include/linux/socket.h index 8e98297f1388..ec538fc287a6 100644 --- a/include/linux/socket.h +++ b/include/linux/socket.h @@ -305,8 +305,6 @@ struct ucred { /* IPX options */ #define IPX_TYPE 1 -extern int memcpy_fromiovecend(unsigned char *kdata, const struct iovec *iov, - int offset, int len); extern int csum_partial_copy_fromiovecend(unsigned char *kdata, struct iovec *iov, int offset, @@ -315,8 +313,6 @@ extern unsigned long iov_pages(const struct iovec *iov, int offset, unsigned long nr_segs); extern int verify_iovec(struct msghdr *m, struct iovec *iov, struct sockaddr_storage *address, int mode); -extern int memcpy_toiovecend(const struct iovec *v, unsigned char *kdata, - int offset, int len); extern int move_addr_to_kernel(void __user *uaddr, int ulen, struct sockaddr_storage *kaddr); extern int put_cmsg(struct msghdr*, int level, int type, int len, void *data); diff --git a/include/linux/uio.h b/include/linux/uio.h index e2231e47cec1..09a7cffc224e 100644 --- a/include/linux/uio.h +++ b/include/linux/uio.h @@ -94,8 +94,20 @@ static inline size_t iov_iter_count(struct iov_iter *i) return i->count; } -static inline void iov_iter_truncate(struct iov_iter *i, size_t count) +/* + * Cap the iov_iter by given limit; note that the second argument is + * *not* the new size - it's upper limit for such. Passing it a value + * greater than the amount of data in iov_iter is fine - it'll just do + * nothing in that case. + */ +static inline void iov_iter_truncate(struct iov_iter *i, u64 count) { + /* + * count doesn't have to fit in size_t - comparison extends both + * operands to u64 here and any value that would be truncated by + * conversion in assignement is by definition greater than all + * values of size_t, including old i->count. + */ if (i->count > count) i->count = count; } @@ -111,6 +123,9 @@ static inline void iov_iter_reexpand(struct iov_iter *i, size_t count) int memcpy_fromiovec(unsigned char *kdata, struct iovec *iov, int len); int memcpy_toiovec(struct iovec *iov, unsigned char *kdata, int len); - +int memcpy_fromiovecend(unsigned char *kdata, const struct iovec *iov, + int offset, int len); +int memcpy_toiovecend(const struct iovec *v, unsigned char *kdata, + int offset, int len); #endif diff --git a/include/net/netfilter/nf_tables.h b/include/net/netfilter/nf_tables.h index 7ee6ce6564ae..713b0b88bd5a 100644 --- a/include/net/netfilter/nf_tables.h +++ b/include/net/netfilter/nf_tables.h @@ -503,9 +503,9 @@ enum nft_chain_flags { * @net: net namespace that this chain belongs to * @table: table that this chain belongs to * @handle: chain handle - * @flags: bitmask of enum nft_chain_flags * @use: number of jump references to this chain * @level: length of longest path to this chain + * @flags: bitmask of enum nft_chain_flags * @name: name of the chain */ struct nft_chain { @@ -514,9 +514,9 @@ struct nft_chain { struct net *net; struct nft_table *table; u64 handle; - u8 flags; - u16 use; + u32 use; u16 level; + u8 flags; char name[NFT_CHAIN_MAXNAMELEN]; }; diff --git a/include/net/sock.h b/include/net/sock.h index 07b7fcd60d80..173cae485de1 100644 --- a/include/net/sock.h +++ b/include/net/sock.h @@ -1730,8 +1730,8 @@ sk_dst_get(struct sock *sk) rcu_read_lock(); dst = rcu_dereference(sk->sk_dst_cache); - if (dst) - dst_hold(dst); + if (dst && !atomic_inc_not_zero(&dst->__refcnt)) + dst = NULL; rcu_read_unlock(); return dst; } diff --git a/include/trace/ftrace.h b/include/trace/ftrace.h index 0fd06fef9fac..26b4f2e13275 100644 --- a/include/trace/ftrace.h +++ b/include/trace/ftrace.h @@ -44,6 +44,12 @@ #undef __field_ext #define __field_ext(type, item, filter_type) type item; +#undef __field_struct +#define __field_struct(type, item) type item; + +#undef __field_struct_ext +#define __field_struct_ext(type, item, filter_type) type item; + #undef __array #define __array(type, item, len) type item[len]; @@ -122,6 +128,12 @@ #undef __field_ext #define __field_ext(type, item, filter_type) +#undef __field_struct +#define __field_struct(type, item) + +#undef __field_struct_ext +#define __field_struct_ext(type, item, filter_type) + #undef __array #define __array(type, item, len) @@ -315,9 +327,21 @@ static struct trace_event_functions ftrace_event_type_funcs_##call = { \ if (ret) \ return ret; +#undef __field_struct_ext +#define __field_struct_ext(type, item, filter_type) \ + ret = trace_define_field(event_call, #type, #item, \ + offsetof(typeof(field), item), \ + sizeof(field.item), \ + 0, filter_type); \ + if (ret) \ + return ret; + #undef __field #define __field(type, item) __field_ext(type, item, FILTER_OTHER) +#undef __field_struct +#define __field_struct(type, item) __field_struct_ext(type, item, FILTER_OTHER) + #undef __array #define __array(type, item, len) \ do { \ @@ -379,6 +403,12 @@ ftrace_define_fields_##call(struct ftrace_event_call *event_call) \ #undef __field_ext #define __field_ext(type, item, filter_type) +#undef __field_struct +#define __field_struct(type, item) + +#undef __field_struct_ext +#define __field_struct_ext(type, item, filter_type) + #undef __array #define __array(type, item, len) @@ -550,6 +580,9 @@ static inline notrace int ftrace_get_offsets_##call( \ #undef __field #define __field(type, item) +#undef __field_struct +#define __field_struct(type, item) + #undef __array #define __array(type, item, len) diff --git a/include/trace/syscall.h b/include/trace/syscall.h index fed853f3d7aa..9674145e2f6a 100644 --- a/include/trace/syscall.h +++ b/include/trace/syscall.h @@ -4,6 +4,7 @@ #include <linux/tracepoint.h> #include <linux/unistd.h> #include <linux/ftrace_event.h> +#include <linux/thread_info.h> #include <asm/ptrace.h> @@ -32,4 +33,18 @@ struct syscall_metadata { struct ftrace_event_call *exit_event; }; +#if defined(CONFIG_TRACEPOINTS) && defined(CONFIG_HAVE_SYSCALL_TRACEPOINTS) +static inline void syscall_tracepoint_update(struct task_struct *p) +{ + if (test_thread_flag(TIF_SYSCALL_TRACEPOINT)) + set_tsk_thread_flag(p, TIF_SYSCALL_TRACEPOINT); + else + clear_tsk_thread_flag(p, TIF_SYSCALL_TRACEPOINT); +} +#else +static inline void syscall_tracepoint_update(struct task_struct *p) +{ +} +#endif + #endif /* _TRACE_SYSCALL_H */ diff --git a/include/uapi/sound/compress_offload.h b/include/uapi/sound/compress_offload.h index 21eed488783f..1964026b5e09 100644 --- a/include/uapi/sound/compress_offload.h +++ b/include/uapi/sound/compress_offload.h @@ -39,7 +39,7 @@ struct snd_compressed_buffer { __u32 fragment_size; __u32 fragments; -}; +} __attribute__((packed, aligned(4))); /** * struct snd_compr_params: compressed stream params @@ -51,7 +51,7 @@ struct snd_compr_params { struct snd_compressed_buffer buffer; struct snd_codec codec; __u8 no_wake_mode; -}; +} __attribute__((packed, aligned(4))); /** * struct snd_compr_tstamp: timestamp descriptor @@ -70,7 +70,7 @@ struct snd_compr_tstamp { __u32 pcm_frames; __u32 pcm_io_frames; __u32 sampling_rate; -}; +} __attribute__((packed, aligned(4))); /** * struct snd_compr_avail: avail descriptor @@ -80,7 +80,7 @@ struct snd_compr_tstamp { struct snd_compr_avail { __u64 avail; struct snd_compr_tstamp tstamp; -} __attribute__((packed)); +} __attribute__((packed, aligned(4))); enum snd_compr_direction { SND_COMPRESS_PLAYBACK = 0, @@ -107,7 +107,7 @@ struct snd_compr_caps { __u32 max_fragments; __u32 codecs[MAX_NUM_CODECS]; __u32 reserved[11]; -}; +} __attribute__((packed, aligned(4))); /** * struct snd_compr_codec_caps: query capability of codec @@ -119,7 +119,7 @@ struct snd_compr_codec_caps { __u32 codec; __u32 num_descriptors; struct snd_codec_desc descriptor[MAX_NUM_CODEC_DESCRIPTORS]; -}; +} __attribute__((packed, aligned(4))); /** * @SNDRV_COMPRESS_ENCODER_PADDING: no of samples appended by the encoder at the @@ -140,7 +140,7 @@ enum { struct snd_compr_metadata { __u32 key; __u32 value[8]; -}; +} __attribute__((packed, aligned(4))); /** * compress path ioctl definitions diff --git a/include/uapi/sound/compress_params.h b/include/uapi/sound/compress_params.h index 165e7059de75..d9bd9ca0d5b0 100644 --- a/include/uapi/sound/compress_params.h +++ b/include/uapi/sound/compress_params.h @@ -268,7 +268,7 @@ struct snd_enc_vorbis { __u32 max_bit_rate; __u32 min_bit_rate; __u32 downmix; -}; +} __attribute__((packed, aligned(4))); /** @@ -284,7 +284,7 @@ struct snd_enc_real { __u32 quant_bits; __u32 start_region; __u32 num_regions; -}; +} __attribute__((packed, aligned(4))); /** * struct snd_enc_flac @@ -308,12 +308,12 @@ struct snd_enc_real { struct snd_enc_flac { __u32 num; __u32 gain; -}; +} __attribute__((packed, aligned(4))); struct snd_enc_generic { __u32 bw; /* encoder bandwidth */ __s32 reserved[15]; -}; +} __attribute__((packed, aligned(4))); union snd_codec_options { struct snd_enc_wma wma; @@ -321,7 +321,7 @@ union snd_codec_options { struct snd_enc_real real; struct snd_enc_flac flac; struct snd_enc_generic generic; -}; +} __attribute__((packed, aligned(4))); /** struct snd_codec_desc - description of codec capabilities * @max_ch: Maximum number of audio channels @@ -358,7 +358,7 @@ struct snd_codec_desc { __u32 formats; __u32 min_buffer; __u32 reserved[15]; -}; +} __attribute__((packed, aligned(4))); /** struct snd_codec * @id: Identifies the supported audio encoder/decoder. @@ -399,6 +399,6 @@ struct snd_codec { __u32 align; union snd_codec_options options; __u32 reserved[3]; -}; +} __attribute__((packed, aligned(4))); #endif diff --git a/kernel/events/uprobes.c b/kernel/events/uprobes.c index c445e392e93f..6f3254e8c137 100644 --- a/kernel/events/uprobes.c +++ b/kernel/events/uprobes.c @@ -846,7 +846,7 @@ static void __uprobe_unregister(struct uprobe *uprobe, struct uprobe_consumer *u { int err; - if (!consumer_del(uprobe, uc)) /* WARN? */ + if (WARN_ON(!consumer_del(uprobe, uc))) return; err = register_for_each_vma(uprobe, NULL); @@ -927,7 +927,7 @@ int uprobe_apply(struct inode *inode, loff_t offset, int ret = -ENOENT; uprobe = find_uprobe(inode, offset); - if (!uprobe) + if (WARN_ON(!uprobe)) return ret; down_write(&uprobe->register_rwsem); @@ -952,7 +952,7 @@ void uprobe_unregister(struct inode *inode, loff_t offset, struct uprobe_consume struct uprobe *uprobe; uprobe = find_uprobe(inode, offset); - if (!uprobe) + if (WARN_ON(!uprobe)) return; down_write(&uprobe->register_rwsem); diff --git a/kernel/fork.c b/kernel/fork.c index d2799d1fc952..6a13c46cd87d 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -1487,7 +1487,9 @@ static struct task_struct *copy_process(unsigned long clone_flags, total_forks++; spin_unlock(¤t->sighand->siglock); + syscall_tracepoint_update(p); write_unlock_irq(&tasklist_lock); + proc_fork_connector(p); cgroup_post_fork(p); if (clone_flags & CLONE_THREAD) diff --git a/kernel/kexec.c b/kernel/kexec.c index 6748688813d0..369f41a94124 100644 --- a/kernel/kexec.c +++ b/kernel/kexec.c @@ -1617,6 +1617,7 @@ static int __init crash_save_vmcoreinfo_init(void) #ifdef CONFIG_MEMORY_FAILURE VMCOREINFO_NUMBER(PG_hwpoison); #endif + VMCOREINFO_NUMBER(PG_head_mask); VMCOREINFO_NUMBER(PAGE_BUDDY_MAPCOUNT_VALUE); arch_crash_save_vmcoreinfo(); diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c index ea2d5f6962ed..13e839dbca07 100644 --- a/kernel/printk/printk.c +++ b/kernel/printk/printk.c @@ -1416,9 +1416,10 @@ static int have_callable_console(void) /* * Can we actually use the console at this time on this cpu? * - * Console drivers may assume that per-cpu resources have been allocated. So - * unless they're explicitly marked as being able to cope (CON_ANYTIME) don't - * call them until this CPU is officially up. + * Console drivers may assume that per-cpu resources have + * been allocated. So unless they're explicitly marked as + * being able to cope (CON_ANYTIME) don't call them until + * this CPU is officially up. */ static inline int can_use_console(unsigned int cpu) { @@ -1431,10 +1432,8 @@ static inline int can_use_console(unsigned int cpu) * console_lock held, and 'console_locked' set) if it * is successful, false otherwise. */ -static int console_trylock_for_printk(void) +static int console_trylock_for_printk(unsigned int cpu) { - unsigned int cpu = smp_processor_id(); - if (!console_trylock()) return 0; /* @@ -1609,8 +1608,7 @@ asmlinkage int vprintk_emit(int facility, int level, */ if (!oops_in_progress && !lockdep_recursing(current)) { recursion_bug = 1; - local_irq_restore(flags); - return 0; + goto out_restore_irqs; } zap_locks(); } @@ -1718,27 +1716,21 @@ asmlinkage int vprintk_emit(int facility, int level, logbuf_cpu = UINT_MAX; raw_spin_unlock(&logbuf_lock); - lockdep_on(); - local_irq_restore(flags); /* If called from the scheduler, we can not call up(). */ - if (in_sched) - return printed_len; - - /* - * Disable preemption to avoid being preempted while holding - * console_sem which would prevent anyone from printing to console - */ - preempt_disable(); - /* - * Try to acquire and then immediately release the console semaphore. - * The release will print out buffers and wake up /dev/kmsg and syslog() - * users. - */ - if (console_trylock_for_printk()) - console_unlock(); - preempt_enable(); + if (!in_sched) { + /* + * Try to acquire and then immediately release the console + * semaphore. The release will print out buffers and wake up + * /dev/kmsg and syslog() users. + */ + if (console_trylock_for_printk(this_cpu)) + console_unlock(); + } + lockdep_on(); +out_restore_irqs: + local_irq_restore(flags); return printed_len; } EXPORT_SYMBOL(vprintk_emit); diff --git a/kernel/smp.c b/kernel/smp.c index 306f8180b0d5..80c33f8de14f 100644 --- a/kernel/smp.c +++ b/kernel/smp.c @@ -29,6 +29,8 @@ static DEFINE_PER_CPU_SHARED_ALIGNED(struct call_function_data, cfd_data); static DEFINE_PER_CPU_SHARED_ALIGNED(struct llist_head, call_single_queue); +static void flush_smp_call_function_queue(bool warn_cpu_offline); + static int hotplug_cfd(struct notifier_block *nfb, unsigned long action, void *hcpu) { @@ -51,12 +53,27 @@ hotplug_cfd(struct notifier_block *nfb, unsigned long action, void *hcpu) #ifdef CONFIG_HOTPLUG_CPU case CPU_UP_CANCELED: case CPU_UP_CANCELED_FROZEN: + /* Fall-through to the CPU_DEAD[_FROZEN] case. */ case CPU_DEAD: case CPU_DEAD_FROZEN: free_cpumask_var(cfd->cpumask); free_percpu(cfd->csd); break; + + case CPU_DYING: + case CPU_DYING_FROZEN: + /* + * The IPIs for the smp-call-function callbacks queued by other + * CPUs might arrive late, either due to hardware latencies or + * because this CPU disabled interrupts (inside stop-machine) + * before the IPIs were sent. So flush out any pending callbacks + * explicitly (without waiting for the IPIs to arrive), to + * ensure that the outgoing CPU doesn't go offline with work + * still pending. + */ + flush_smp_call_function_queue(false); + break; #endif }; @@ -177,23 +194,47 @@ static int generic_exec_single(int cpu, struct call_single_data *csd, return 0; } -/* - * Invoked by arch to handle an IPI for call function single. Must be - * called from the arch with interrupts disabled. +/** + * generic_smp_call_function_single_interrupt - Execute SMP IPI callbacks + * + * Invoked by arch to handle an IPI for call function single. + * Must be called with interrupts disabled. */ void generic_smp_call_function_single_interrupt(void) { + flush_smp_call_function_queue(true); +} + +/** + * flush_smp_call_function_queue - Flush pending smp-call-function callbacks + * + * @warn_cpu_offline: If set to 'true', warn if callbacks were queued on an + * offline CPU. Skip this check if set to 'false'. + * + * Flush any pending smp-call-function callbacks queued on this CPU. This is + * invoked by the generic IPI handler, as well as by a CPU about to go offline, + * to ensure that all pending IPI callbacks are run before it goes completely + * offline. + * + * Loop through the call_single_queue and run all the queued callbacks. + * Must be called with interrupts disabled. + */ +static void flush_smp_call_function_queue(bool warn_cpu_offline) +{ + struct llist_head *head; struct llist_node *entry; struct call_single_data *csd, *csd_next; static bool warned; - entry = llist_del_all(&__get_cpu_var(call_single_queue)); + WARN_ON(!irqs_disabled()); + + head = &__get_cpu_var(call_single_queue); + entry = llist_del_all(head); entry = llist_reverse_order(entry); - /* - * Shouldn't receive this interrupt on a cpu that is not yet online. - */ - if (unlikely(!cpu_online(smp_processor_id()) && !warned)) { + /* There shouldn't be any pending callbacks on an offline CPU. */ + if (unlikely(warn_cpu_offline && !cpu_online(smp_processor_id()) && + !warned && !llist_empty(head))) { warned = true; WARN(1, "IPI on offline CPU %d\n", smp_processor_id()); diff --git a/kernel/sysctl.c b/kernel/sysctl.c index 7de6555cfea0..75b22e22a72c 100644 --- a/kernel/sysctl.c +++ b/kernel/sysctl.c @@ -136,7 +136,6 @@ static unsigned long dirty_bytes_min = 2 * PAGE_SIZE; /* this is needed for the proc_dointvec_minmax for [fs_]overflow UID and GID */ static int maxolduid = 65535; static int minolduid; -static int min_percpu_pagelist_fract = 8; static int ngroups_max = NGROUPS_MAX; static const int cap_last_cap = CAP_LAST_CAP; @@ -861,6 +860,17 @@ static struct ctl_table kern_table[] = { .extra1 = &zero, .extra2 = &one, }, +#ifdef CONFIG_SMP + { + .procname = "softlockup_all_cpu_backtrace", + .data = &sysctl_softlockup_all_cpu_backtrace, + .maxlen = sizeof(int), + .mode = 0644, + .proc_handler = proc_dointvec_minmax, + .extra1 = &zero, + .extra2 = &one, + }, +#endif /* CONFIG_SMP */ { .procname = "nmi_watchdog", .data = &watchdog_user_enabled, @@ -1317,7 +1327,7 @@ static struct ctl_table vm_table[] = { .maxlen = sizeof(percpu_pagelist_fraction), .mode = 0644, .proc_handler = percpu_pagelist_fraction_sysctl_handler, - .extra1 = &min_percpu_pagelist_fract, + .extra1 = &zero, }, #ifdef CONFIG_MMU { diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index 384ede311717..f243444a3772 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -1396,7 +1396,6 @@ void tracing_start(void) arch_spin_unlock(&global_trace.max_lock); - ftrace_start(); out: raw_spin_unlock_irqrestore(&global_trace.start_lock, flags); } @@ -1443,7 +1442,6 @@ void tracing_stop(void) struct ring_buffer *buffer; unsigned long flags; - ftrace_stop(); raw_spin_lock_irqsave(&global_trace.start_lock, flags); if (global_trace.stop_count++) goto out; diff --git a/kernel/trace/trace_uprobe.c b/kernel/trace/trace_uprobe.c index 04fdb5de823c..3c9b97e6b1f4 100644 --- a/kernel/trace/trace_uprobe.c +++ b/kernel/trace/trace_uprobe.c @@ -893,6 +893,9 @@ probe_event_enable(struct trace_uprobe *tu, struct ftrace_event_file *file, int ret; if (file) { + if (tu->tp.flags & TP_FLAG_PROFILE) + return -EINTR; + link = kmalloc(sizeof(*link), GFP_KERNEL); if (!link) return -ENOMEM; @@ -901,29 +904,40 @@ probe_event_enable(struct trace_uprobe *tu, struct ftrace_event_file *file, list_add_tail_rcu(&link->list, &tu->tp.files); tu->tp.flags |= TP_FLAG_TRACE; - } else - tu->tp.flags |= TP_FLAG_PROFILE; + } else { + if (tu->tp.flags & TP_FLAG_TRACE) + return -EINTR; - ret = uprobe_buffer_enable(); - if (ret < 0) - return ret; + tu->tp.flags |= TP_FLAG_PROFILE; + } WARN_ON(!uprobe_filter_is_empty(&tu->filter)); if (enabled) return 0; + ret = uprobe_buffer_enable(); + if (ret) + goto err_flags; + tu->consumer.filter = filter; ret = uprobe_register(tu->inode, tu->offset, &tu->consumer); - if (ret) { - if (file) { - list_del(&link->list); - kfree(link); - tu->tp.flags &= ~TP_FLAG_TRACE; - } else - tu->tp.flags &= ~TP_FLAG_PROFILE; - } + if (ret) + goto err_buffer; + return 0; + + err_buffer: + uprobe_buffer_disable(); + + err_flags: + if (file) { + list_del(&link->list); + kfree(link); + tu->tp.flags &= ~TP_FLAG_TRACE; + } else { + tu->tp.flags &= ~TP_FLAG_PROFILE; + } return ret; } @@ -1201,12 +1215,6 @@ static int uprobe_dispatcher(struct uprobe_consumer *con, struct pt_regs *regs) current->utask->vaddr = (unsigned long) &udd; -#ifdef CONFIG_PERF_EVENTS - if ((tu->tp.flags & TP_FLAG_TRACE) == 0 && - !uprobe_perf_filter(&tu->consumer, 0, current->mm)) - return UPROBE_HANDLER_REMOVE; -#endif - if (WARN_ON_ONCE(!uprobe_cpu_buffer)) return 0; diff --git a/kernel/tracepoint.c b/kernel/tracepoint.c index 33cbd8c203f8..3490407dc7b7 100644 --- a/kernel/tracepoint.c +++ b/kernel/tracepoint.c @@ -492,33 +492,29 @@ static int sys_tracepoint_refcount; void syscall_regfunc(void) { - unsigned long flags; - struct task_struct *g, *t; + struct task_struct *p, *t; if (!sys_tracepoint_refcount) { - read_lock_irqsave(&tasklist_lock, flags); - do_each_thread(g, t) { - /* Skip kernel threads. */ - if (t->mm) - set_tsk_thread_flag(t, TIF_SYSCALL_TRACEPOINT); - } while_each_thread(g, t); - read_unlock_irqrestore(&tasklist_lock, flags); + read_lock(&tasklist_lock); + for_each_process_thread(p, t) { + set_tsk_thread_flag(t, TIF_SYSCALL_TRACEPOINT); + } + read_unlock(&tasklist_lock); } sys_tracepoint_refcount++; } void syscall_unregfunc(void) { - unsigned long flags; - struct task_struct *g, *t; + struct task_struct *p, *t; sys_tracepoint_refcount--; if (!sys_tracepoint_refcount) { - read_lock_irqsave(&tasklist_lock, flags); - do_each_thread(g, t) { + read_lock(&tasklist_lock); + for_each_process_thread(p, t) { clear_tsk_thread_flag(t, TIF_SYSCALL_TRACEPOINT); - } while_each_thread(g, t); - read_unlock_irqrestore(&tasklist_lock, flags); + } + read_unlock(&tasklist_lock); } } #endif diff --git a/kernel/watchdog.c b/kernel/watchdog.c index 516203e665fc..c3319bd1b040 100644 --- a/kernel/watchdog.c +++ b/kernel/watchdog.c @@ -31,6 +31,12 @@ int watchdog_user_enabled = 1; int __read_mostly watchdog_thresh = 10; +#ifdef CONFIG_SMP +int __read_mostly sysctl_softlockup_all_cpu_backtrace; +#else +#define sysctl_softlockup_all_cpu_backtrace 0 +#endif + static int __read_mostly watchdog_running; static u64 __read_mostly sample_period; @@ -47,6 +53,7 @@ static DEFINE_PER_CPU(bool, watchdog_nmi_touch); static DEFINE_PER_CPU(unsigned long, hrtimer_interrupts_saved); static DEFINE_PER_CPU(struct perf_event *, watchdog_ev); #endif +static unsigned long soft_lockup_nmi_warn; /* boot commands */ /* @@ -95,6 +102,15 @@ static int __init nosoftlockup_setup(char *str) } __setup("nosoftlockup", nosoftlockup_setup); /* */ +#ifdef CONFIG_SMP +static int __init softlockup_all_cpu_backtrace_setup(char *str) +{ + sysctl_softlockup_all_cpu_backtrace = + !!simple_strtol(str, NULL, 0); + return 1; +} +__setup("softlockup_all_cpu_backtrace=", softlockup_all_cpu_backtrace_setup); +#endif /* * Hard-lockup warnings should be triggered after just a few seconds. Soft- @@ -271,6 +287,7 @@ static enum hrtimer_restart watchdog_timer_fn(struct hrtimer *hrtimer) unsigned long touch_ts = __this_cpu_read(watchdog_touch_ts); struct pt_regs *regs = get_irq_regs(); int duration; + int softlockup_all_cpu_backtrace = sysctl_softlockup_all_cpu_backtrace; /* kick the hardlockup detector */ watchdog_interrupt_count(); @@ -317,6 +334,17 @@ static enum hrtimer_restart watchdog_timer_fn(struct hrtimer *hrtimer) if (__this_cpu_read(soft_watchdog_warn) == true) return HRTIMER_RESTART; + if (softlockup_all_cpu_backtrace) { + /* Prevent multiple soft-lockup reports if one cpu is already + * engaged in dumping cpu back traces + */ + if (test_and_set_bit(0, &soft_lockup_nmi_warn)) { + /* Someone else will report us. Let's give up */ + __this_cpu_write(soft_watchdog_warn, true); + return HRTIMER_RESTART; + } + } + printk(KERN_EMERG "BUG: soft lockup - CPU#%d stuck for %us! [%s:%d]\n", smp_processor_id(), duration, current->comm, task_pid_nr(current)); @@ -327,6 +355,17 @@ static enum hrtimer_restart watchdog_timer_fn(struct hrtimer *hrtimer) else dump_stack(); + if (softlockup_all_cpu_backtrace) { + /* Avoid generating two back traces for current + * given that one is already made above + */ + trigger_allbutself_cpu_backtrace(); + + clear_bit(0, &soft_lockup_nmi_warn); + /* Barrier to sync with other cpus */ + smp_mb__after_atomic(); + } + if (softlockup_panic) panic("softlockup: hung tasks"); __this_cpu_write(soft_watchdog_warn, true); @@ -527,10 +566,8 @@ static void update_timers_all_cpus(void) int cpu; get_online_cpus(); - preempt_disable(); for_each_online_cpu(cpu) update_timers(cpu); - preempt_enable(); put_online_cpus(); } diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 7cfcc1b8e101..7a638aa3545b 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -930,7 +930,7 @@ config LOCKDEP bool depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT select STACKTRACE - select FRAME_POINTER if !MIPS && !PPC && !ARM_UNWIND && !S390 && !MICROBLAZE && !ARC + select FRAME_POINTER if !MIPS && !PPC && !ARM_UNWIND && !S390 && !MICROBLAZE && !ARC && !SCORE select KALLSYMS select KALLSYMS_ALL @@ -1408,7 +1408,7 @@ config FAULT_INJECTION_STACKTRACE_FILTER depends on FAULT_INJECTION_DEBUG_FS && STACKTRACE_SUPPORT depends on !X86_64 select STACKTRACE - select FRAME_POINTER if !MIPS && !PPC && !S390 && !MICROBLAZE && !ARM_UNWIND && !ARC + select FRAME_POINTER if !MIPS && !PPC && !S390 && !MICROBLAZE && !ARM_UNWIND && !ARC && !SCORE help Provide stacktrace filter for fault-injection capabilities diff --git a/lib/iovec.c b/lib/iovec.c index 454baa88bf27..7a7c2da4cddf 100644 --- a/lib/iovec.c +++ b/lib/iovec.c @@ -51,3 +51,58 @@ int memcpy_toiovec(struct iovec *iov, unsigned char *kdata, int len) return 0; } EXPORT_SYMBOL(memcpy_toiovec); + +/* + * Copy kernel to iovec. Returns -EFAULT on error. + */ + +int memcpy_toiovecend(const struct iovec *iov, unsigned char *kdata, + int offset, int len) +{ + int copy; + for (; len > 0; ++iov) { + /* Skip over the finished iovecs */ + if (unlikely(offset >= iov->iov_len)) { + offset -= iov->iov_len; + continue; + } + copy = min_t(unsigned int, iov->iov_len - offset, len); + if (copy_to_user(iov->iov_base + offset, kdata, copy)) + return -EFAULT; + offset = 0; + kdata += copy; + len -= copy; + } + + return 0; +} +EXPORT_SYMBOL(memcpy_toiovecend); + +/* + * Copy iovec to kernel. Returns -EFAULT on error. + */ + +int memcpy_fromiovecend(unsigned char *kdata, const struct iovec *iov, + int offset, int len) +{ + /* Skip over the finished iovecs */ + while (offset >= iov->iov_len) { + offset -= iov->iov_len; + iov++; + } + + while (len > 0) { + u8 __user *base = iov->iov_base + offset; + int copy = min_t(unsigned int, len, iov->iov_len - offset); + + offset = 0; + if (copy_from_user(kdata, base, copy)) + return -EFAULT; + len -= copy; + kdata += copy; + iov++; + } + + return 0; +} +EXPORT_SYMBOL(memcpy_fromiovecend); diff --git a/lib/lz4/lz4_decompress.c b/lib/lz4/lz4_decompress.c index df6839e3ce08..7a85967060a5 100644 --- a/lib/lz4/lz4_decompress.c +++ b/lib/lz4/lz4_decompress.c @@ -72,6 +72,8 @@ static int lz4_uncompress(const char *source, char *dest, int osize) len = *ip++; for (; len == 255; length += 255) len = *ip++; + if (unlikely(length > (size_t)(length + len))) + goto _output_error; length += len; } @@ -106,6 +108,8 @@ static int lz4_uncompress(const char *source, char *dest, int osize) if (length == ML_MASK) { for (; *ip == 255; length += 255) ip++; + if (unlikely(length > (size_t)(length + *ip))) + goto _output_error; length += *ip++; } @@ -155,7 +159,7 @@ static int lz4_uncompress(const char *source, char *dest, int osize) /* write overflow error detected */ _output_error: - return (int) (-(((char *)ip) - source)); + return -1; } static int lz4_uncompress_unknownoutputsize(const char *source, char *dest, @@ -188,6 +192,8 @@ static int lz4_uncompress_unknownoutputsize(const char *source, char *dest, int s = 255; while ((ip < iend) && (s == 255)) { s = *ip++; + if (unlikely(length > (size_t)(length + s))) + goto _output_error; length += s; } } @@ -228,6 +234,8 @@ static int lz4_uncompress_unknownoutputsize(const char *source, char *dest, if (length == ML_MASK) { while (ip < iend) { int s = *ip++; + if (unlikely(length > (size_t)(length + s))) + goto _output_error; length += s; if (s == 255) continue; @@ -280,7 +288,7 @@ static int lz4_uncompress_unknownoutputsize(const char *source, char *dest, /* write overflow error detected */ _output_error: - return (int) (-(((char *) ip) - source)); + return -1; } int lz4_decompress(const unsigned char *src, size_t *src_len, diff --git a/lib/lzo/lzo1x_decompress_safe.c b/lib/lzo/lzo1x_decompress_safe.c index 569985d522d5..8563081e8da3 100644 --- a/lib/lzo/lzo1x_decompress_safe.c +++ b/lib/lzo/lzo1x_decompress_safe.c @@ -19,11 +19,31 @@ #include <linux/lzo.h> #include "lzodefs.h" -#define HAVE_IP(x) ((size_t)(ip_end - ip) >= (size_t)(x)) -#define HAVE_OP(x) ((size_t)(op_end - op) >= (size_t)(x)) -#define NEED_IP(x) if (!HAVE_IP(x)) goto input_overrun -#define NEED_OP(x) if (!HAVE_OP(x)) goto output_overrun -#define TEST_LB(m_pos) if ((m_pos) < out) goto lookbehind_overrun +#define HAVE_IP(t, x) \ + (((size_t)(ip_end - ip) >= (size_t)(t + x)) && \ + (((t + x) >= t) && ((t + x) >= x))) + +#define HAVE_OP(t, x) \ + (((size_t)(op_end - op) >= (size_t)(t + x)) && \ + (((t + x) >= t) && ((t + x) >= x))) + +#define NEED_IP(t, x) \ + do { \ + if (!HAVE_IP(t, x)) \ + goto input_overrun; \ + } while (0) + +#define NEED_OP(t, x) \ + do { \ + if (!HAVE_OP(t, x)) \ + goto output_overrun; \ + } while (0) + +#define TEST_LB(m_pos) \ + do { \ + if ((m_pos) < out) \ + goto lookbehind_overrun; \ + } while (0) int lzo1x_decompress_safe(const unsigned char *in, size_t in_len, unsigned char *out, size_t *out_len) @@ -58,14 +78,14 @@ int lzo1x_decompress_safe(const unsigned char *in, size_t in_len, while (unlikely(*ip == 0)) { t += 255; ip++; - NEED_IP(1); + NEED_IP(1, 0); } t += 15 + *ip++; } t += 3; copy_literal_run: #if defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS) - if (likely(HAVE_IP(t + 15) && HAVE_OP(t + 15))) { + if (likely(HAVE_IP(t, 15) && HAVE_OP(t, 15))) { const unsigned char *ie = ip + t; unsigned char *oe = op + t; do { @@ -81,8 +101,8 @@ copy_literal_run: } else #endif { - NEED_OP(t); - NEED_IP(t + 3); + NEED_OP(t, 0); + NEED_IP(t, 3); do { *op++ = *ip++; } while (--t > 0); @@ -95,7 +115,7 @@ copy_literal_run: m_pos -= t >> 2; m_pos -= *ip++ << 2; TEST_LB(m_pos); - NEED_OP(2); + NEED_OP(2, 0); op[0] = m_pos[0]; op[1] = m_pos[1]; op += 2; @@ -119,10 +139,10 @@ copy_literal_run: while (unlikely(*ip == 0)) { t += 255; ip++; - NEED_IP(1); + NEED_IP(1, 0); } t += 31 + *ip++; - NEED_IP(2); + NEED_IP(2, 0); } m_pos = op - 1; next = get_unaligned_le16(ip); @@ -137,10 +157,10 @@ copy_literal_run: while (unlikely(*ip == 0)) { t += 255; ip++; - NEED_IP(1); + NEED_IP(1, 0); } t += 7 + *ip++; - NEED_IP(2); + NEED_IP(2, 0); } next = get_unaligned_le16(ip); ip += 2; @@ -154,7 +174,7 @@ copy_literal_run: #if defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS) if (op - m_pos >= 8) { unsigned char *oe = op + t; - if (likely(HAVE_OP(t + 15))) { + if (likely(HAVE_OP(t, 15))) { do { COPY8(op, m_pos); op += 8; @@ -164,7 +184,7 @@ copy_literal_run: m_pos += 8; } while (op < oe); op = oe; - if (HAVE_IP(6)) { + if (HAVE_IP(6, 0)) { state = next; COPY4(op, ip); op += next; @@ -172,7 +192,7 @@ copy_literal_run: continue; } } else { - NEED_OP(t); + NEED_OP(t, 0); do { *op++ = *m_pos++; } while (op < oe); @@ -181,7 +201,7 @@ copy_literal_run: #endif { unsigned char *oe = op + t; - NEED_OP(t); + NEED_OP(t, 0); op[0] = m_pos[0]; op[1] = m_pos[1]; op += 2; @@ -194,15 +214,15 @@ match_next: state = next; t = next; #if defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS) - if (likely(HAVE_IP(6) && HAVE_OP(4))) { + if (likely(HAVE_IP(6, 0) && HAVE_OP(4, 0))) { COPY4(op, ip); op += t; ip += t; } else #endif { - NEED_IP(t + 3); - NEED_OP(t); + NEED_IP(t, 3); + NEED_OP(t, 0); while (t > 0) { *op++ = *ip++; t--; diff --git a/lib/swiotlb.c b/lib/swiotlb.c index 649d097853a1..4abda074ea45 100644 --- a/lib/swiotlb.c +++ b/lib/swiotlb.c @@ -86,6 +86,7 @@ static unsigned int io_tlb_index; * We need to save away the original address corresponding to a mapped entry * for the sync operations. */ +#define INVALID_PHYS_ADDR (~(phys_addr_t)0) static phys_addr_t *io_tlb_orig_addr; /* @@ -188,12 +189,14 @@ int __init swiotlb_init_with_tbl(char *tlb, unsigned long nslabs, int verbose) io_tlb_list = memblock_virt_alloc( PAGE_ALIGN(io_tlb_nslabs * sizeof(int)), PAGE_SIZE); - for (i = 0; i < io_tlb_nslabs; i++) - io_tlb_list[i] = IO_TLB_SEGSIZE - OFFSET(i, IO_TLB_SEGSIZE); - io_tlb_index = 0; io_tlb_orig_addr = memblock_virt_alloc( PAGE_ALIGN(io_tlb_nslabs * sizeof(phys_addr_t)), PAGE_SIZE); + for (i = 0; i < io_tlb_nslabs; i++) { + io_tlb_list[i] = IO_TLB_SEGSIZE - OFFSET(i, IO_TLB_SEGSIZE); + io_tlb_orig_addr[i] = INVALID_PHYS_ADDR; + } + io_tlb_index = 0; if (verbose) swiotlb_print_info(); @@ -313,10 +316,6 @@ swiotlb_late_init_with_tbl(char *tlb, unsigned long nslabs) if (!io_tlb_list) goto cleanup3; - for (i = 0; i < io_tlb_nslabs; i++) - io_tlb_list[i] = IO_TLB_SEGSIZE - OFFSET(i, IO_TLB_SEGSIZE); - io_tlb_index = 0; - io_tlb_orig_addr = (phys_addr_t *) __get_free_pages(GFP_KERNEL, get_order(io_tlb_nslabs * @@ -324,7 +323,11 @@ swiotlb_late_init_with_tbl(char *tlb, unsigned long nslabs) if (!io_tlb_orig_addr) goto cleanup4; - memset(io_tlb_orig_addr, 0, io_tlb_nslabs * sizeof(phys_addr_t)); + for (i = 0; i < io_tlb_nslabs; i++) { + io_tlb_list[i] = IO_TLB_SEGSIZE - OFFSET(i, IO_TLB_SEGSIZE); + io_tlb_orig_addr[i] = INVALID_PHYS_ADDR; + } + io_tlb_index = 0; swiotlb_print_info(); @@ -556,7 +559,8 @@ void swiotlb_tbl_unmap_single(struct device *hwdev, phys_addr_t tlb_addr, /* * First, sync the memory before unmapping the entry */ - if (orig_addr && ((dir == DMA_FROM_DEVICE) || (dir == DMA_BIDIRECTIONAL))) + if (orig_addr != INVALID_PHYS_ADDR && + ((dir == DMA_FROM_DEVICE) || (dir == DMA_BIDIRECTIONAL))) swiotlb_bounce(orig_addr, tlb_addr, size, DMA_FROM_DEVICE); /* @@ -573,8 +577,10 @@ void swiotlb_tbl_unmap_single(struct device *hwdev, phys_addr_t tlb_addr, * Step 1: return the slots to the free list, merging the * slots with superceeding slots */ - for (i = index + nslots - 1; i >= index; i--) + for (i = index + nslots - 1; i >= index; i--) { io_tlb_list[i] = ++count; + io_tlb_orig_addr[i] = INVALID_PHYS_ADDR; + } /* * Step 2: merge the returned slots with the preceding slots, * if available (non zero) @@ -593,6 +599,8 @@ void swiotlb_tbl_sync_single(struct device *hwdev, phys_addr_t tlb_addr, int index = (tlb_addr - io_tlb_start) >> IO_TLB_SHIFT; phys_addr_t orig_addr = io_tlb_orig_addr[index]; + if (orig_addr == INVALID_PHYS_ADDR) + return; orig_addr += (unsigned long)tlb_addr & ((1 << IO_TLB_SHIFT) - 1); switch (target) { diff --git a/mm/huge_memory.c b/mm/huge_memory.c index e60837dc785c..33514d88fef9 100644 --- a/mm/huge_memory.c +++ b/mm/huge_memory.c @@ -941,6 +941,37 @@ unlock: spin_unlock(ptl); } +/* + * Save CONFIG_DEBUG_PAGEALLOC from faulting falsely on tail pages + * during copy_user_huge_page()'s copy_page_rep(): in the case when + * the source page gets split and a tail freed before copy completes. + * Called under pmd_lock of checked pmd, so safe from splitting itself. + */ +static void get_user_huge_page(struct page *page) +{ + if (IS_ENABLED(CONFIG_DEBUG_PAGEALLOC)) { + struct page *endpage = page + HPAGE_PMD_NR; + + atomic_add(HPAGE_PMD_NR, &page->_count); + while (++page < endpage) + get_huge_page_tail(page); + } else { + get_page(page); + } +} + +static void put_user_huge_page(struct page *page) +{ + if (IS_ENABLED(CONFIG_DEBUG_PAGEALLOC)) { + struct page *endpage = page + HPAGE_PMD_NR; + + while (page < endpage) + put_page(page++); + } else { + put_page(page); + } +} + static int do_huge_pmd_wp_page_fallback(struct mm_struct *mm, struct vm_area_struct *vma, unsigned long address, @@ -1074,7 +1105,7 @@ int do_huge_pmd_wp_page(struct mm_struct *mm, struct vm_area_struct *vma, ret |= VM_FAULT_WRITE; goto out_unlock; } - get_page(page); + get_user_huge_page(page); spin_unlock(ptl); alloc: if (transparent_hugepage_enabled(vma) && @@ -1095,7 +1126,7 @@ alloc: split_huge_page(page); ret |= VM_FAULT_FALLBACK; } - put_page(page); + put_user_huge_page(page); } count_vm_event(THP_FAULT_FALLBACK); goto out; @@ -1105,7 +1136,7 @@ alloc: put_page(new_page); if (page) { split_huge_page(page); - put_page(page); + put_user_huge_page(page); } else split_huge_page_pmd(vma, address, pmd); ret |= VM_FAULT_FALLBACK; @@ -1127,7 +1158,7 @@ alloc: spin_lock(ptl); if (page) - put_page(page); + put_user_huge_page(page); if (unlikely(!pmd_same(*pmd, orig_pmd))) { spin_unlock(ptl); mem_cgroup_uncharge_page(new_page); @@ -2392,8 +2423,6 @@ static void collapse_huge_page(struct mm_struct *mm, pmd = mm_find_pmd(mm, address); if (!pmd) goto out; - if (pmd_trans_huge(*pmd)) - goto out; anon_vma_lock_write(vma->anon_vma); @@ -2492,8 +2521,6 @@ static int khugepaged_scan_pmd(struct mm_struct *mm, pmd = mm_find_pmd(mm, address); if (!pmd) goto out; - if (pmd_trans_huge(*pmd)) - goto out; memset(khugepaged_node_load, 0, sizeof(khugepaged_node_load)); pte = pte_offset_map_lock(mm, pmd, address, &ptl); @@ -2846,12 +2873,22 @@ void split_huge_page_pmd_mm(struct mm_struct *mm, unsigned long address, static void split_huge_page_address(struct mm_struct *mm, unsigned long address) { + pgd_t *pgd; + pud_t *pud; pmd_t *pmd; VM_BUG_ON(!(address & ~HPAGE_PMD_MASK)); - pmd = mm_find_pmd(mm, address); - if (!pmd) + pgd = pgd_offset(mm, address); + if (!pgd_present(*pgd)) + return; + + pud = pud_offset(pgd, address); + if (!pud_present(*pud)) + return; + + pmd = pmd_offset(pud, address); + if (!pmd_present(*pmd)) return; /* * Caller holds the mmap_sem write mode, so a huge pmd cannot diff --git a/mm/hugetlb.c b/mm/hugetlb.c index 226910cb7c9b..2024bbd573d2 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -2520,6 +2520,31 @@ static void set_huge_ptep_writable(struct vm_area_struct *vma, update_mmu_cache(vma, address, ptep); } +static int is_hugetlb_entry_migration(pte_t pte) +{ + swp_entry_t swp; + + if (huge_pte_none(pte) || pte_present(pte)) + return 0; + swp = pte_to_swp_entry(pte); + if (non_swap_entry(swp) && is_migration_entry(swp)) + return 1; + else + return 0; +} + +static int is_hugetlb_entry_hwpoisoned(pte_t pte) +{ + swp_entry_t swp; + + if (huge_pte_none(pte) || pte_present(pte)) + return 0; + swp = pte_to_swp_entry(pte); + if (non_swap_entry(swp) && is_hwpoison_entry(swp)) + return 1; + else + return 0; +} int copy_hugetlb_page_range(struct mm_struct *dst, struct mm_struct *src, struct vm_area_struct *vma) @@ -2559,10 +2584,26 @@ int copy_hugetlb_page_range(struct mm_struct *dst, struct mm_struct *src, dst_ptl = huge_pte_lock(h, dst, dst_pte); src_ptl = huge_pte_lockptr(h, src, src_pte); spin_lock_nested(src_ptl, SINGLE_DEPTH_NESTING); - if (!huge_pte_none(huge_ptep_get(src_pte))) { + entry = huge_ptep_get(src_pte); + if (huge_pte_none(entry)) { /* skip none entry */ + ; + } else if (unlikely(is_hugetlb_entry_migration(entry) || + is_hugetlb_entry_hwpoisoned(entry))) { + swp_entry_t swp_entry = pte_to_swp_entry(entry); + + if (is_write_migration_entry(swp_entry) && cow) { + /* + * COW mappings require pages in both + * parent and child to be set to read. + */ + make_migration_entry_read(&swp_entry); + entry = swp_entry_to_pte(swp_entry); + set_huge_pte_at(src, addr, src_pte, entry); + } + set_huge_pte_at(dst, addr, dst_pte, entry); + } else { if (cow) huge_ptep_set_wrprotect(src, addr, src_pte); - entry = huge_ptep_get(src_pte); ptepage = pte_page(entry); get_page(ptepage); page_dup_rmap(ptepage); @@ -2578,32 +2619,6 @@ int copy_hugetlb_page_range(struct mm_struct *dst, struct mm_struct *src, return ret; } -static int is_hugetlb_entry_migration(pte_t pte) -{ - swp_entry_t swp; - - if (huge_pte_none(pte) || pte_present(pte)) - return 0; - swp = pte_to_swp_entry(pte); - if (non_swap_entry(swp) && is_migration_entry(swp)) - return 1; - else - return 0; -} - -static int is_hugetlb_entry_hwpoisoned(pte_t pte) -{ - swp_entry_t swp; - - if (huge_pte_none(pte) || pte_present(pte)) - return 0; - swp = pte_to_swp_entry(pte); - if (non_swap_entry(swp) && is_hwpoison_entry(swp)) - return 1; - else - return 0; -} - void __unmap_hugepage_range(struct mmu_gather *tlb, struct vm_area_struct *vma, unsigned long start, unsigned long end, struct page *ref_page) @@ -945,7 +945,6 @@ static int replace_page(struct vm_area_struct *vma, struct page *page, pmd = mm_find_pmd(mm, addr); if (!pmd) goto out; - BUG_ON(pmd_trans_huge(*pmd)); mmun_start = addr; mmun_end = addr + PAGE_SIZE; diff --git a/mm/memory-failure.c b/mm/memory-failure.c index cd8989c1027e..c6399e328931 100644 --- a/mm/memory-failure.c +++ b/mm/memory-failure.c @@ -895,7 +895,7 @@ static int hwpoison_user_mappings(struct page *p, unsigned long pfn, struct page *hpage = *hpagep; struct page *ppage; - if (PageReserved(p) || PageSlab(p)) + if (PageReserved(p) || PageSlab(p) || !PageLRU(p)) return SWAP_SUCCESS; /* @@ -1159,9 +1159,6 @@ int memory_failure(unsigned long pfn, int trapno, int flags) action_result(pfn, "free buddy, 2nd try", DELAYED); return 0; } - action_result(pfn, "non LRU", IGNORED); - put_page(p); - return -EBUSY; } } @@ -1194,6 +1191,9 @@ int memory_failure(unsigned long pfn, int trapno, int flags) return 0; } + if (!PageHuge(p) && !PageTransTail(p) && !PageLRU(p)) + goto identify_page_state; + /* * For error on the tail page, we should set PG_hwpoison * on the head page to show that the hugepage is hwpoisoned @@ -1243,6 +1243,7 @@ int memory_failure(unsigned long pfn, int trapno, int flags) goto out; } +identify_page_state: res = -EBUSY; /* * The first check uses the current page flags which may not have any diff --git a/mm/mempolicy.c b/mm/mempolicy.c index 284974230459..eb58de19f815 100644 --- a/mm/mempolicy.c +++ b/mm/mempolicy.c @@ -656,19 +656,18 @@ static unsigned long change_prot_numa(struct vm_area_struct *vma, * @nodes and @flags,) it's isolated and queued to the pagelist which is * passed via @private.) */ -static struct vm_area_struct * +static int queue_pages_range(struct mm_struct *mm, unsigned long start, unsigned long end, const nodemask_t *nodes, unsigned long flags, void *private) { - int err; - struct vm_area_struct *first, *vma, *prev; - + int err = 0; + struct vm_area_struct *vma, *prev; - first = find_vma(mm, start); - if (!first) - return ERR_PTR(-EFAULT); + vma = find_vma(mm, start); + if (!vma) + return -EFAULT; prev = NULL; - for (vma = first; vma && vma->vm_start < end; vma = vma->vm_next) { + for (; vma && vma->vm_start < end; vma = vma->vm_next) { unsigned long endvma = vma->vm_end; if (endvma > end) @@ -678,9 +677,9 @@ queue_pages_range(struct mm_struct *mm, unsigned long start, unsigned long end, if (!(flags & MPOL_MF_DISCONTIG_OK)) { if (!vma->vm_next && vma->vm_end < end) - return ERR_PTR(-EFAULT); + return -EFAULT; if (prev && prev->vm_end < vma->vm_start) - return ERR_PTR(-EFAULT); + return -EFAULT; } if (flags & MPOL_MF_LAZY) { @@ -694,15 +693,13 @@ queue_pages_range(struct mm_struct *mm, unsigned long start, unsigned long end, err = queue_pages_pgd_range(vma, start, endvma, nodes, flags, private); - if (err) { - first = ERR_PTR(err); + if (err) break; - } } next: prev = vma; } - return first; + return err; } /* @@ -1156,16 +1153,17 @@ out: /* * Allocate a new page for page migration based on vma policy. - * Start assuming that page is mapped by vma pointed to by @private. + * Start by assuming the page is mapped by the same vma as contains @start. * Search forward from there, if not. N.B., this assumes that the * list of pages handed to migrate_pages()--which is how we get here-- * is in virtual address order. */ -static struct page *new_vma_page(struct page *page, unsigned long private, int **x) +static struct page *new_page(struct page *page, unsigned long start, int **x) { - struct vm_area_struct *vma = (struct vm_area_struct *)private; + struct vm_area_struct *vma; unsigned long uninitialized_var(address); + vma = find_vma(current->mm, start); while (vma) { address = page_address_in_vma(page, vma); if (address != -EFAULT) @@ -1195,7 +1193,7 @@ int do_migrate_pages(struct mm_struct *mm, const nodemask_t *from, return -ENOSYS; } -static struct page *new_vma_page(struct page *page, unsigned long private, int **x) +static struct page *new_page(struct page *page, unsigned long start, int **x) { return NULL; } @@ -1205,7 +1203,6 @@ static long do_mbind(unsigned long start, unsigned long len, unsigned short mode, unsigned short mode_flags, nodemask_t *nmask, unsigned long flags) { - struct vm_area_struct *vma; struct mm_struct *mm = current->mm; struct mempolicy *new; unsigned long end; @@ -1271,11 +1268,9 @@ static long do_mbind(unsigned long start, unsigned long len, if (err) goto mpol_out; - vma = queue_pages_range(mm, start, end, nmask, + err = queue_pages_range(mm, start, end, nmask, flags | MPOL_MF_INVERT, &pagelist); - - err = PTR_ERR(vma); /* maybe ... */ - if (!IS_ERR(vma)) + if (!err) err = mbind_range(mm, start, end, new); if (!err) { @@ -1283,9 +1278,8 @@ static long do_mbind(unsigned long start, unsigned long len, if (!list_empty(&pagelist)) { WARN_ON_ONCE(flags & MPOL_MF_LAZY); - nr_failed = migrate_pages(&pagelist, new_vma_page, - NULL, (unsigned long)vma, - MIGRATE_SYNC, MR_MEMPOLICY_MBIND); + nr_failed = migrate_pages(&pagelist, new_page, NULL, + start, MIGRATE_SYNC, MR_MEMPOLICY_MBIND); if (nr_failed) putback_movable_pages(&pagelist); } diff --git a/mm/migrate.c b/mm/migrate.c index 63f0cd559999..9e0beaa91845 100644 --- a/mm/migrate.c +++ b/mm/migrate.c @@ -120,8 +120,6 @@ static int remove_migration_pte(struct page *new, struct vm_area_struct *vma, pmd = mm_find_pmd(mm, addr); if (!pmd) goto out; - if (pmd_trans_huge(*pmd)) - goto out; ptep = pte_offset_map(pmd, addr); diff --git a/mm/msync.c b/mm/msync.c index a5c673669ca6..992a1673d488 100644 --- a/mm/msync.c +++ b/mm/msync.c @@ -78,7 +78,8 @@ SYSCALL_DEFINE3(msync, unsigned long, start, size_t, len, int, flags) goto out_unlock; } file = vma->vm_file; - fstart = start + ((loff_t)vma->vm_pgoff << PAGE_SHIFT); + fstart = (start - vma->vm_start) + + ((loff_t)vma->vm_pgoff << PAGE_SHIFT); fend = fstart + (min(end, vma->vm_end) - start) - 1; start = vma->vm_end; if ((flags & MS_SYNC) && file && diff --git a/mm/nommu.c b/mm/nommu.c index b78e3a8f5ee7..4a852f6c5709 100644 --- a/mm/nommu.c +++ b/mm/nommu.c @@ -786,7 +786,7 @@ static void delete_vma_from_mm(struct vm_area_struct *vma) for (i = 0; i < VMACACHE_SIZE; i++) { /* if the vma is cached, invalidate the entire cache */ if (curr->vmacache[i] == vma) { - vmacache_invalidate(curr->mm); + vmacache_invalidate(mm); break; } } diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 4f59fa29eda8..0ea758b898fd 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -69,6 +69,7 @@ /* prevent >1 _updater_ of zone percpu pageset ->high and ->batch fields */ static DEFINE_MUTEX(pcp_batch_high_lock); +#define MIN_PERCPU_PAGELIST_FRACTION (8) #ifdef CONFIG_USE_PERCPU_NUMA_NODE_ID DEFINE_PER_CPU(int, numa_node); @@ -815,9 +816,21 @@ void __init init_cma_reserved_pageblock(struct page *page) set_page_count(p, 0); } while (++p, --i); - set_page_refcounted(page); set_pageblock_migratetype(page, MIGRATE_CMA); - __free_pages(page, pageblock_order); + + if (pageblock_order >= MAX_ORDER) { + i = pageblock_nr_pages; + p = page; + do { + set_page_refcounted(p); + __free_pages(p, MAX_ORDER - 1); + p += MAX_ORDER_NR_PAGES; + } while (i -= MAX_ORDER_NR_PAGES); + } else { + set_page_refcounted(page); + __free_pages(page, pageblock_order); + } + adjust_managed_page_count(page, pageblock_nr_pages); } #endif @@ -4145,7 +4158,7 @@ static void __meminit zone_init_free_lists(struct zone *zone) memmap_init_zone((size), (nid), (zone), (start_pfn), MEMMAP_EARLY) #endif -static int __meminit zone_batchsize(struct zone *zone) +static int zone_batchsize(struct zone *zone) { #ifdef CONFIG_MMU int batch; @@ -4261,8 +4274,8 @@ static void pageset_set_high(struct per_cpu_pageset *p, pageset_update(&p->pcp, high, batch); } -static void __meminit pageset_set_high_and_batch(struct zone *zone, - struct per_cpu_pageset *pcp) +static void pageset_set_high_and_batch(struct zone *zone, + struct per_cpu_pageset *pcp) { if (percpu_pagelist_fraction) pageset_set_high(pcp, @@ -5881,23 +5894,38 @@ int percpu_pagelist_fraction_sysctl_handler(struct ctl_table *table, int write, void __user *buffer, size_t *length, loff_t *ppos) { struct zone *zone; - unsigned int cpu; + int old_percpu_pagelist_fraction; int ret; + mutex_lock(&pcp_batch_high_lock); + old_percpu_pagelist_fraction = percpu_pagelist_fraction; + ret = proc_dointvec_minmax(table, write, buffer, length, ppos); - if (!write || (ret < 0)) - return ret; + if (!write || ret < 0) + goto out; + + /* Sanity checking to avoid pcp imbalance */ + if (percpu_pagelist_fraction && + percpu_pagelist_fraction < MIN_PERCPU_PAGELIST_FRACTION) { + percpu_pagelist_fraction = old_percpu_pagelist_fraction; + ret = -EINVAL; + goto out; + } + + /* No change? */ + if (percpu_pagelist_fraction == old_percpu_pagelist_fraction) + goto out; - mutex_lock(&pcp_batch_high_lock); for_each_populated_zone(zone) { - unsigned long high; - high = zone->managed_pages / percpu_pagelist_fraction; + unsigned int cpu; + for_each_possible_cpu(cpu) - pageset_set_high(per_cpu_ptr(zone->pageset, cpu), - high); + pageset_set_high_and_batch(zone, + per_cpu_ptr(zone->pageset, cpu)); } +out: mutex_unlock(&pcp_batch_high_lock); - return 0; + return ret; } int hashdist = HASHDIST_DEFAULT; diff --git a/mm/rmap.c b/mm/rmap.c index bf05fc872ae8..b7e94ebbd09e 100644 --- a/mm/rmap.c +++ b/mm/rmap.c @@ -569,6 +569,7 @@ pmd_t *mm_find_pmd(struct mm_struct *mm, unsigned long address) pgd_t *pgd; pud_t *pud; pmd_t *pmd = NULL; + pmd_t pmde; pgd = pgd_offset(mm, address); if (!pgd_present(*pgd)) @@ -579,7 +580,13 @@ pmd_t *mm_find_pmd(struct mm_struct *mm, unsigned long address) goto out; pmd = pmd_offset(pud, address); - if (!pmd_present(*pmd)) + /* + * Some THP functions use the sequence pmdp_clear_flush(), set_pmd_at() + * without holding anon_vma lock for write. So when looking for a + * genuine pmde (in which to find pte), test present and !THP together. + */ + pmde = ACCESS_ONCE(*pmd); + if (!pmd_present(pmde) || pmd_trans_huge(pmde)) pmd = NULL; out: return pmd; @@ -615,9 +622,6 @@ pte_t *__page_check_address(struct page *page, struct mm_struct *mm, if (!pmd) return NULL; - if (pmd_trans_huge(*pmd)) - return NULL; - pte = pte_offset_map(pmd, address); /* Make a quick check before getting the lock */ if (!sync && !pte_present(*pte)) { diff --git a/mm/shmem.c b/mm/shmem.c index f484c276e994..1140f49b6ded 100644 --- a/mm/shmem.c +++ b/mm/shmem.c @@ -80,11 +80,12 @@ static struct vfsmount *shm_mnt; #define SHORT_SYMLINK_LEN 128 /* - * shmem_fallocate and shmem_writepage communicate via inode->i_private - * (with i_mutex making sure that it has only one user at a time): - * we would prefer not to enlarge the shmem inode just for that. + * shmem_fallocate communicates with shmem_fault or shmem_writepage via + * inode->i_private (with i_mutex making sure that it has only one user at + * a time): we would prefer not to enlarge the shmem inode just for that. */ struct shmem_falloc { + int mode; /* FALLOC_FL mode currently operating */ pgoff_t start; /* start of range currently being fallocated */ pgoff_t next; /* the next page offset to be fallocated */ pgoff_t nr_falloced; /* how many new pages have been fallocated */ @@ -759,6 +760,7 @@ static int shmem_writepage(struct page *page, struct writeback_control *wbc) spin_lock(&inode->i_lock); shmem_falloc = inode->i_private; if (shmem_falloc && + !shmem_falloc->mode && index >= shmem_falloc->start && index < shmem_falloc->next) shmem_falloc->nr_unswapped++; @@ -1027,6 +1029,9 @@ repeat: goto failed; } + if (page && sgp == SGP_WRITE) + mark_page_accessed(page); + /* fallocated page? */ if (page && !PageUptodate(page)) { if (sgp != SGP_READ) @@ -1108,6 +1113,9 @@ repeat: shmem_recalc_inode(inode); spin_unlock(&info->lock); + if (sgp == SGP_WRITE) + mark_page_accessed(page); + delete_from_swap_cache(page); set_page_dirty(page); swap_free(swap); @@ -1134,6 +1142,9 @@ repeat: __SetPageSwapBacked(page); __set_page_locked(page); + if (sgp == SGP_WRITE) + init_page_accessed(page); + error = mem_cgroup_charge_file(page, current->mm, gfp & GFP_RECLAIM_MASK); if (error) @@ -1233,6 +1244,44 @@ static int shmem_fault(struct vm_area_struct *vma, struct vm_fault *vmf) int error; int ret = VM_FAULT_LOCKED; + /* + * Trinity finds that probing a hole which tmpfs is punching can + * prevent the hole-punch from ever completing: which in turn + * locks writers out with its hold on i_mutex. So refrain from + * faulting pages into the hole while it's being punched, and + * wait on i_mutex to be released if vmf->flags permits. + */ + if (unlikely(inode->i_private)) { + struct shmem_falloc *shmem_falloc; + + spin_lock(&inode->i_lock); + shmem_falloc = inode->i_private; + if (!shmem_falloc || + shmem_falloc->mode != FALLOC_FL_PUNCH_HOLE || + vmf->pgoff < shmem_falloc->start || + vmf->pgoff >= shmem_falloc->next) + shmem_falloc = NULL; + spin_unlock(&inode->i_lock); + /* + * i_lock has protected us from taking shmem_falloc seriously + * once return from shmem_fallocate() went back up that stack. + * i_lock does not serialize with i_mutex at all, but it does + * not matter if sometimes we wait unnecessarily, or sometimes + * miss out on waiting: we just need to make those cases rare. + */ + if (shmem_falloc) { + if ((vmf->flags & FAULT_FLAG_ALLOW_RETRY) && + !(vmf->flags & FAULT_FLAG_RETRY_NOWAIT)) { + up_read(&vma->vm_mm->mmap_sem); + mutex_lock(&inode->i_mutex); + mutex_unlock(&inode->i_mutex); + return VM_FAULT_RETRY; + } + /* cond_resched? Leave that to GUP or return to user */ + return VM_FAULT_NOPAGE; + } + } + error = shmem_getpage(inode, vmf->pgoff, &vmf->page, SGP_CACHE, &ret); if (error) return ((error == -ENOMEM) ? VM_FAULT_OOM : VM_FAULT_SIGBUS); @@ -1372,13 +1421,9 @@ shmem_write_begin(struct file *file, struct address_space *mapping, loff_t pos, unsigned len, unsigned flags, struct page **pagep, void **fsdata) { - int ret; struct inode *inode = mapping->host; pgoff_t index = pos >> PAGE_CACHE_SHIFT; - ret = shmem_getpage(inode, index, pagep, SGP_WRITE, NULL); - if (ret == 0 && *pagep) - init_page_accessed(*pagep); - return ret; + return shmem_getpage(inode, index, pagep, SGP_WRITE, NULL); } static int @@ -1724,20 +1769,31 @@ static long shmem_fallocate(struct file *file, int mode, loff_t offset, pgoff_t start, index, end; int error; + if (mode & ~(FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE)) + return -EOPNOTSUPP; + mutex_lock(&inode->i_mutex); + shmem_falloc.mode = mode & ~FALLOC_FL_KEEP_SIZE; + if (mode & FALLOC_FL_PUNCH_HOLE) { struct address_space *mapping = file->f_mapping; loff_t unmap_start = round_up(offset, PAGE_SIZE); loff_t unmap_end = round_down(offset + len, PAGE_SIZE) - 1; + shmem_falloc.start = unmap_start >> PAGE_SHIFT; + shmem_falloc.next = (unmap_end + 1) >> PAGE_SHIFT; + spin_lock(&inode->i_lock); + inode->i_private = &shmem_falloc; + spin_unlock(&inode->i_lock); + if ((u64)unmap_end > (u64)unmap_start) unmap_mapping_range(mapping, unmap_start, 1 + unmap_end - unmap_start, 0); shmem_truncate_range(inode, offset, offset + len - 1); /* No need to unmap again: hole-punching leaves COWed pages */ error = 0; - goto out; + goto undone; } /* We need to check rlimit even when FALLOC_FL_KEEP_SIZE */ diff --git a/mm/slab.c b/mm/slab.c index 9ca3b87edabc..3070b929a1bf 100644 --- a/mm/slab.c +++ b/mm/slab.c @@ -386,6 +386,39 @@ static void **dbg_userword(struct kmem_cache *cachep, void *objp) #endif +#define OBJECT_FREE (0) +#define OBJECT_ACTIVE (1) + +#ifdef CONFIG_DEBUG_SLAB_LEAK + +static void set_obj_status(struct page *page, int idx, int val) +{ + int freelist_size; + char *status; + struct kmem_cache *cachep = page->slab_cache; + + freelist_size = cachep->num * sizeof(freelist_idx_t); + status = (char *)page->freelist + freelist_size; + status[idx] = val; +} + +static inline unsigned int get_obj_status(struct page *page, int idx) +{ + int freelist_size; + char *status; + struct kmem_cache *cachep = page->slab_cache; + + freelist_size = cachep->num * sizeof(freelist_idx_t); + status = (char *)page->freelist + freelist_size; + + return status[idx]; +} + +#else +static inline void set_obj_status(struct page *page, int idx, int val) {} + +#endif + /* * Do not go above this order unless 0 objects fit into the slab or * overridden on the command line. @@ -576,12 +609,30 @@ static inline struct array_cache *cpu_cache_get(struct kmem_cache *cachep) return cachep->array[smp_processor_id()]; } +static size_t calculate_freelist_size(int nr_objs, size_t align) +{ + size_t freelist_size; + + freelist_size = nr_objs * sizeof(freelist_idx_t); + if (IS_ENABLED(CONFIG_DEBUG_SLAB_LEAK)) + freelist_size += nr_objs * sizeof(char); + + if (align) + freelist_size = ALIGN(freelist_size, align); + + return freelist_size; +} + static int calculate_nr_objs(size_t slab_size, size_t buffer_size, size_t idx_size, size_t align) { int nr_objs; + size_t remained_size; size_t freelist_size; + int extra_space = 0; + if (IS_ENABLED(CONFIG_DEBUG_SLAB_LEAK)) + extra_space = sizeof(char); /* * Ignore padding for the initial guess. The padding * is at most @align-1 bytes, and @buffer_size is at @@ -590,14 +641,15 @@ static int calculate_nr_objs(size_t slab_size, size_t buffer_size, * into the memory allocation when taking the padding * into account. */ - nr_objs = slab_size / (buffer_size + idx_size); + nr_objs = slab_size / (buffer_size + idx_size + extra_space); /* * This calculated number will be either the right * amount, or one greater than what we want. */ - freelist_size = slab_size - nr_objs * buffer_size; - if (freelist_size < ALIGN(nr_objs * idx_size, align)) + remained_size = slab_size - nr_objs * buffer_size; + freelist_size = calculate_freelist_size(nr_objs, align); + if (remained_size < freelist_size) nr_objs--; return nr_objs; @@ -635,7 +687,7 @@ static void cache_estimate(unsigned long gfporder, size_t buffer_size, } else { nr_objs = calculate_nr_objs(slab_size, buffer_size, sizeof(freelist_idx_t), align); - mgmt_size = ALIGN(nr_objs * sizeof(freelist_idx_t), align); + mgmt_size = calculate_freelist_size(nr_objs, align); } *num = nr_objs; *left_over = slab_size - nr_objs*buffer_size - mgmt_size; @@ -2041,13 +2093,16 @@ static size_t calculate_slab_order(struct kmem_cache *cachep, break; if (flags & CFLGS_OFF_SLAB) { + size_t freelist_size_per_obj = sizeof(freelist_idx_t); /* * Max number of objs-per-slab for caches which * use off-slab slabs. Needed to avoid a possible * looping condition in cache_grow(). */ + if (IS_ENABLED(CONFIG_DEBUG_SLAB_LEAK)) + freelist_size_per_obj += sizeof(char); offslab_limit = size; - offslab_limit /= sizeof(freelist_idx_t); + offslab_limit /= freelist_size_per_obj; if (num > offslab_limit) break; @@ -2294,8 +2349,7 @@ __kmem_cache_create (struct kmem_cache *cachep, unsigned long flags) if (!cachep->num) return -E2BIG; - freelist_size = - ALIGN(cachep->num * sizeof(freelist_idx_t), cachep->align); + freelist_size = calculate_freelist_size(cachep->num, cachep->align); /* * If the slab has been placed off-slab, and we have enough space then @@ -2308,7 +2362,7 @@ __kmem_cache_create (struct kmem_cache *cachep, unsigned long flags) if (flags & CFLGS_OFF_SLAB) { /* really off slab. No need for manual alignment */ - freelist_size = cachep->num * sizeof(freelist_idx_t); + freelist_size = calculate_freelist_size(cachep->num, 0); #ifdef CONFIG_PAGE_POISONING /* If we're going to use the generic kernel_map_pages() @@ -2612,6 +2666,7 @@ static void cache_init_objs(struct kmem_cache *cachep, if (cachep->ctor) cachep->ctor(objp); #endif + set_obj_status(page, i, OBJECT_FREE); set_free_obj(page, i, i); } } @@ -2820,6 +2875,7 @@ static void *cache_free_debugcheck(struct kmem_cache *cachep, void *objp, BUG_ON(objnr >= cachep->num); BUG_ON(objp != index_to_obj(cachep, page, objnr)); + set_obj_status(page, objnr, OBJECT_FREE); if (cachep->flags & SLAB_POISON) { #ifdef CONFIG_DEBUG_PAGEALLOC if ((cachep->size % PAGE_SIZE)==0 && OFF_SLAB(cachep)) { @@ -2953,6 +3009,8 @@ static inline void cache_alloc_debugcheck_before(struct kmem_cache *cachep, static void *cache_alloc_debugcheck_after(struct kmem_cache *cachep, gfp_t flags, void *objp, unsigned long caller) { + struct page *page; + if (!objp) return objp; if (cachep->flags & SLAB_POISON) { @@ -2983,6 +3041,9 @@ static void *cache_alloc_debugcheck_after(struct kmem_cache *cachep, *dbg_redzone1(cachep, objp) = RED_ACTIVE; *dbg_redzone2(cachep, objp) = RED_ACTIVE; } + + page = virt_to_head_page(objp); + set_obj_status(page, obj_to_index(cachep, page, objp), OBJECT_ACTIVE); objp += obj_offset(cachep); if (cachep->ctor && cachep->flags & SLAB_POISON) cachep->ctor(objp); @@ -4219,21 +4280,12 @@ static void handle_slab(unsigned long *n, struct kmem_cache *c, struct page *page) { void *p; - int i, j; + int i; if (n[0] == n[1]) return; for (i = 0, p = page->s_mem; i < c->num; i++, p += c->size) { - bool active = true; - - for (j = page->active; j < c->num; j++) { - /* Skip freed item */ - if (get_free_obj(page, j) == i) { - active = false; - break; - } - } - if (!active) + if (get_obj_status(page, i) != OBJECT_ACTIVE) continue; if (!add_caller(n, (unsigned long)*dbg_userword(c, p))) diff --git a/mm/slub.c b/mm/slub.c index b2b047327d76..73004808537e 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -1881,7 +1881,7 @@ redo: new.frozen = 0; - if (!new.inuse && n->nr_partial > s->min_partial) + if (!new.inuse && n->nr_partial >= s->min_partial) m = M_FREE; else if (new.freelist) { m = M_PARTIAL; @@ -1992,7 +1992,7 @@ static void unfreeze_partials(struct kmem_cache *s, new.freelist, new.counters, "unfreezing slab")); - if (unlikely(!new.inuse && n->nr_partial > s->min_partial)) { + if (unlikely(!new.inuse && n->nr_partial >= s->min_partial)) { page->next = discard_page; discard_page = page; } else { @@ -2620,7 +2620,7 @@ static void __slab_free(struct kmem_cache *s, struct page *page, return; } - if (unlikely(!new.inuse && n->nr_partial > s->min_partial)) + if (unlikely(!new.inuse && n->nr_partial >= s->min_partial)) goto slab_empty; /* diff --git a/net/8021q/vlan_core.c b/net/8021q/vlan_core.c index 9012b1c922b6..75d427763992 100644 --- a/net/8021q/vlan_core.c +++ b/net/8021q/vlan_core.c @@ -114,8 +114,11 @@ EXPORT_SYMBOL(vlan_dev_vlan_proto); static struct sk_buff *vlan_reorder_header(struct sk_buff *skb) { - if (skb_cow(skb, skb_headroom(skb)) < 0) + if (skb_cow(skb, skb_headroom(skb)) < 0) { + kfree_skb(skb); return NULL; + } + memmove(skb->data - ETH_HLEN, skb->data - VLAN_ETH_HLEN, 2 * ETH_ALEN); skb->mac_header += VLAN_HLEN; return skb; diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c index 8671bc79a35b..ca01d1861854 100644 --- a/net/bluetooth/hci_conn.c +++ b/net/bluetooth/hci_conn.c @@ -610,11 +610,6 @@ static void hci_req_add_le_create_conn(struct hci_request *req, if (hci_update_random_address(req, false, &own_addr_type)) return; - /* Save the address type used for this connnection attempt so we able - * to retrieve this information if we need it. - */ - conn->src_type = own_addr_type; - cp.scan_interval = cpu_to_le16(hdev->le_scan_interval); cp.scan_window = cpu_to_le16(hdev->le_scan_window); bacpy(&cp.peer_addr, &conn->dst); @@ -894,7 +889,7 @@ static int hci_conn_auth(struct hci_conn *conn, __u8 sec_level, __u8 auth_type) /* If we're already encrypted set the REAUTH_PEND flag, * otherwise set the ENCRYPT_PEND. */ - if (conn->key_type != 0xff) + if (conn->link_mode & HCI_LM_ENCRYPT) set_bit(HCI_CONN_REAUTH_PEND, &conn->flags); else set_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags); diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c index 21e5913d12e0..640c54ec1bd2 100644 --- a/net/bluetooth/hci_event.c +++ b/net/bluetooth/hci_event.c @@ -48,6 +48,10 @@ static void hci_cc_inquiry_cancel(struct hci_dev *hdev, struct sk_buff *skb) smp_mb__after_atomic(); /* wake_up_bit advises about this barrier */ wake_up_bit(&hdev->flags, HCI_INQUIRY); + hci_dev_lock(hdev); + hci_discovery_set_state(hdev, DISCOVERY_STOPPED); + hci_dev_unlock(hdev); + hci_conn_check_pending(hdev); } @@ -3537,7 +3541,11 @@ static void hci_io_capa_request_evt(struct hci_dev *hdev, struct sk_buff *skb) cp.authentication = conn->auth_type; /* Request MITM protection if our IO caps allow it - * except for the no-bonding case + * except for the no-bonding case. + * conn->auth_type is not updated here since + * that might cause the user confirmation to be + * rejected in case the remote doesn't have the + * IO capabilities for MITM. */ if (conn->io_capability != HCI_IO_NO_INPUT_OUTPUT && cp.authentication != HCI_AT_NO_BONDING) @@ -3628,8 +3636,11 @@ static void hci_user_confirm_request_evt(struct hci_dev *hdev, /* If we're not the initiators request authorization to * proceed from user space (mgmt_user_confirm with - * confirm_hint set to 1). */ - if (!test_bit(HCI_CONN_AUTH_PEND, &conn->flags)) { + * confirm_hint set to 1). The exception is if neither + * side had MITM in which case we do auto-accept. + */ + if (!test_bit(HCI_CONN_AUTH_PEND, &conn->flags) && + (loc_mitm || rem_mitm)) { BT_DBG("Confirming auto-accept as acceptor"); confirm_hint = 1; goto confirm; diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c index 6eabbe05fe54..323f23cd2c37 100644 --- a/net/bluetooth/l2cap_core.c +++ b/net/bluetooth/l2cap_core.c @@ -1663,7 +1663,13 @@ static void l2cap_conn_del(struct hci_conn *hcon, int err) kfree_skb(conn->rx_skb); skb_queue_purge(&conn->pending_rx); - flush_work(&conn->pending_rx_work); + + /* We can not call flush_work(&conn->pending_rx_work) here since we + * might block if we are running on a worker from the same workqueue + * pending_rx_work is waiting on. + */ + if (work_pending(&conn->pending_rx_work)) + cancel_work_sync(&conn->pending_rx_work); l2cap_unregister_all_users(conn); diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c index ade3fb4c23bc..e1378693cc90 100644 --- a/net/bluetooth/l2cap_sock.c +++ b/net/bluetooth/l2cap_sock.c @@ -787,11 +787,6 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname, /*change security for LE channels */ if (chan->scid == L2CAP_CID_ATT) { - if (!conn->hcon->out) { - err = -EINVAL; - break; - } - if (smp_conn_security(conn->hcon, sec.level)) break; sk->sk_state = BT_CONFIG; diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c index 0fce54412ffd..af8e0a6243b7 100644 --- a/net/bluetooth/mgmt.c +++ b/net/bluetooth/mgmt.c @@ -1047,6 +1047,43 @@ static void clean_up_hci_complete(struct hci_dev *hdev, u8 status) } } +static void hci_stop_discovery(struct hci_request *req) +{ + struct hci_dev *hdev = req->hdev; + struct hci_cp_remote_name_req_cancel cp; + struct inquiry_entry *e; + + switch (hdev->discovery.state) { + case DISCOVERY_FINDING: + if (test_bit(HCI_INQUIRY, &hdev->flags)) { + hci_req_add(req, HCI_OP_INQUIRY_CANCEL, 0, NULL); + } else { + cancel_delayed_work(&hdev->le_scan_disable); + hci_req_add_le_scan_disable(req); + } + + break; + + case DISCOVERY_RESOLVING: + e = hci_inquiry_cache_lookup_resolve(hdev, BDADDR_ANY, + NAME_PENDING); + if (!e) + return; + + bacpy(&cp.bdaddr, &e->data.bdaddr); + hci_req_add(req, HCI_OP_REMOTE_NAME_REQ_CANCEL, sizeof(cp), + &cp); + + break; + + default: + /* Passive scanning */ + if (test_bit(HCI_LE_SCAN, &hdev->dev_flags)) + hci_req_add_le_scan_disable(req); + break; + } +} + static int clean_up_hci_state(struct hci_dev *hdev) { struct hci_request req; @@ -1063,9 +1100,7 @@ static int clean_up_hci_state(struct hci_dev *hdev) if (test_bit(HCI_ADVERTISING, &hdev->dev_flags)) disable_advertising(&req); - if (test_bit(HCI_LE_SCAN, &hdev->dev_flags)) { - hci_req_add_le_scan_disable(&req); - } + hci_stop_discovery(&req); list_for_each_entry(conn, &hdev->conn_hash.list, list) { struct hci_cp_disconnect dc; @@ -2996,8 +3031,13 @@ static int user_pairing_resp(struct sock *sk, struct hci_dev *hdev, } if (addr->type == BDADDR_LE_PUBLIC || addr->type == BDADDR_LE_RANDOM) { - /* Continue with pairing via SMP */ + /* Continue with pairing via SMP. The hdev lock must be + * released as SMP may try to recquire it for crypto + * purposes. + */ + hci_dev_unlock(hdev); err = smp_user_confirm_reply(conn, mgmt_op, passkey); + hci_dev_lock(hdev); if (!err) err = cmd_complete(sk, hdev->id, mgmt_op, @@ -3574,8 +3614,6 @@ static int stop_discovery(struct sock *sk, struct hci_dev *hdev, void *data, { struct mgmt_cp_stop_discovery *mgmt_cp = data; struct pending_cmd *cmd; - struct hci_cp_remote_name_req_cancel cp; - struct inquiry_entry *e; struct hci_request req; int err; @@ -3605,52 +3643,22 @@ static int stop_discovery(struct sock *sk, struct hci_dev *hdev, void *data, hci_req_init(&req, hdev); - switch (hdev->discovery.state) { - case DISCOVERY_FINDING: - if (test_bit(HCI_INQUIRY, &hdev->flags)) { - hci_req_add(&req, HCI_OP_INQUIRY_CANCEL, 0, NULL); - } else { - cancel_delayed_work(&hdev->le_scan_disable); - - hci_req_add_le_scan_disable(&req); - } - - break; + hci_stop_discovery(&req); - case DISCOVERY_RESOLVING: - e = hci_inquiry_cache_lookup_resolve(hdev, BDADDR_ANY, - NAME_PENDING); - if (!e) { - mgmt_pending_remove(cmd); - err = cmd_complete(sk, hdev->id, - MGMT_OP_STOP_DISCOVERY, 0, - &mgmt_cp->type, - sizeof(mgmt_cp->type)); - hci_discovery_set_state(hdev, DISCOVERY_STOPPED); - goto unlock; - } - - bacpy(&cp.bdaddr, &e->data.bdaddr); - hci_req_add(&req, HCI_OP_REMOTE_NAME_REQ_CANCEL, sizeof(cp), - &cp); - - break; - - default: - BT_DBG("unknown discovery state %u", hdev->discovery.state); - - mgmt_pending_remove(cmd); - err = cmd_complete(sk, hdev->id, MGMT_OP_STOP_DISCOVERY, - MGMT_STATUS_FAILED, &mgmt_cp->type, - sizeof(mgmt_cp->type)); + err = hci_req_run(&req, stop_discovery_complete); + if (!err) { + hci_discovery_set_state(hdev, DISCOVERY_STOPPING); goto unlock; } - err = hci_req_run(&req, stop_discovery_complete); - if (err < 0) - mgmt_pending_remove(cmd); - else - hci_discovery_set_state(hdev, DISCOVERY_STOPPING); + mgmt_pending_remove(cmd); + + /* If no HCI commands were sent we're done */ + if (err == -ENODATA) { + err = cmd_complete(sk, hdev->id, MGMT_OP_STOP_DISCOVERY, 0, + &mgmt_cp->type, sizeof(mgmt_cp->type)); + hci_discovery_set_state(hdev, DISCOVERY_STOPPED); + } unlock: hci_dev_unlock(hdev); diff --git a/net/bluetooth/smp.c b/net/bluetooth/smp.c index 3d1cc164557d..f2829a7932e2 100644 --- a/net/bluetooth/smp.c +++ b/net/bluetooth/smp.c @@ -544,7 +544,7 @@ static u8 smp_random(struct smp_chan *smp) hci_le_start_enc(hcon, ediv, rand, stk); hcon->enc_key_size = smp->enc_key_size; } else { - u8 stk[16]; + u8 stk[16], auth; __le64 rand = 0; __le16 ediv = 0; @@ -556,8 +556,13 @@ static u8 smp_random(struct smp_chan *smp) memset(stk + smp->enc_key_size, 0, SMP_MAX_ENC_KEY_SIZE - smp->enc_key_size); + if (hcon->pending_sec_level == BT_SECURITY_HIGH) + auth = 1; + else + auth = 0; + hci_add_ltk(hcon->hdev, &hcon->dst, hcon->dst_type, - HCI_SMP_STK_SLAVE, 0, stk, smp->enc_key_size, + HCI_SMP_STK_SLAVE, auth, stk, smp->enc_key_size, ediv, rand); } diff --git a/net/core/dst.c b/net/core/dst.c index 80d6286c8b62..a028409ee438 100644 --- a/net/core/dst.c +++ b/net/core/dst.c @@ -269,6 +269,15 @@ again: } EXPORT_SYMBOL(dst_destroy); +static void dst_destroy_rcu(struct rcu_head *head) +{ + struct dst_entry *dst = container_of(head, struct dst_entry, rcu_head); + + dst = dst_destroy(dst); + if (dst) + __dst_free(dst); +} + void dst_release(struct dst_entry *dst) { if (dst) { @@ -276,11 +285,8 @@ void dst_release(struct dst_entry *dst) newrefcnt = atomic_dec_return(&dst->__refcnt); WARN_ON(newrefcnt < 0); - if (unlikely(dst->flags & DST_NOCACHE) && !newrefcnt) { - dst = dst_destroy(dst); - if (dst) - __dst_free(dst); - } + if (unlikely(dst->flags & DST_NOCACHE) && !newrefcnt) + call_rcu(&dst->rcu_head, dst_destroy_rcu); } } EXPORT_SYMBOL(dst_release); diff --git a/net/core/filter.c b/net/core/filter.c index 735fad897496..1dbf6462f766 100644 --- a/net/core/filter.c +++ b/net/core/filter.c @@ -840,11 +840,11 @@ int sk_convert_filter(struct sock_filter *prog, int len, BUILD_BUG_ON(BPF_MEMWORDS * sizeof(u32) > MAX_BPF_STACK); BUILD_BUG_ON(BPF_REG_FP + 1 != MAX_BPF_REG); - if (len <= 0 || len >= BPF_MAXINSNS) + if (len <= 0 || len > BPF_MAXINSNS) return -EINVAL; if (new_prog) { - addrs = kzalloc(len * sizeof(*addrs), GFP_KERNEL); + addrs = kcalloc(len, sizeof(*addrs), GFP_KERNEL); if (!addrs) return -ENOMEM; } @@ -1101,7 +1101,7 @@ static int check_load_and_stores(struct sock_filter *filter, int flen) BUILD_BUG_ON(BPF_MEMWORDS > 16); - masks = kmalloc(flen * sizeof(*masks), GFP_KERNEL); + masks = kmalloc_array(flen, sizeof(*masks), GFP_KERNEL); if (!masks) return -ENOMEM; @@ -1382,7 +1382,7 @@ static struct sk_filter *__sk_migrate_realloc(struct sk_filter *fp, fp_new = sock_kmalloc(sk, len, GFP_KERNEL); if (fp_new) { *fp_new = *fp; - /* As we're kepping orig_prog in fp_new along, + /* As we're keeping orig_prog in fp_new along, * we need to make sure we're not evicting it * from the old fp. */ @@ -1524,8 +1524,8 @@ static struct sk_filter *__sk_prepare_filter(struct sk_filter *fp, /** * sk_unattached_filter_create - create an unattached filter - * @fprog: the filter program * @pfp: the unattached filter that is created + * @fprog: the filter program * * Create a filter independent of any socket. We first run some * sanity checks on it to make sure it does not explode on us later. diff --git a/net/core/iovec.c b/net/core/iovec.c index b61869429f4c..827dd6beb49c 100644 --- a/net/core/iovec.c +++ b/net/core/iovec.c @@ -75,61 +75,6 @@ int verify_iovec(struct msghdr *m, struct iovec *iov, struct sockaddr_storage *a } /* - * Copy kernel to iovec. Returns -EFAULT on error. - */ - -int memcpy_toiovecend(const struct iovec *iov, unsigned char *kdata, - int offset, int len) -{ - int copy; - for (; len > 0; ++iov) { - /* Skip over the finished iovecs */ - if (unlikely(offset >= iov->iov_len)) { - offset -= iov->iov_len; - continue; - } - copy = min_t(unsigned int, iov->iov_len - offset, len); - if (copy_to_user(iov->iov_base + offset, kdata, copy)) - return -EFAULT; - offset = 0; - kdata += copy; - len -= copy; - } - - return 0; -} -EXPORT_SYMBOL(memcpy_toiovecend); - -/* - * Copy iovec to kernel. Returns -EFAULT on error. - */ - -int memcpy_fromiovecend(unsigned char *kdata, const struct iovec *iov, - int offset, int len) -{ - /* Skip over the finished iovecs */ - while (offset >= iov->iov_len) { - offset -= iov->iov_len; - iov++; - } - - while (len > 0) { - u8 __user *base = iov->iov_base + offset; - int copy = min_t(unsigned int, len, iov->iov_len - offset); - - offset = 0; - if (copy_from_user(kdata, base, copy)) - return -EFAULT; - len -= copy; - kdata += copy; - iov++; - } - - return 0; -} -EXPORT_SYMBOL(memcpy_fromiovecend); - -/* * And now for the all-in-one: copy and checksum from a user iovec * directly to a datagram * Calls to csum_partial but the last must be in 32 bit chunks diff --git a/net/core/skbuff.c b/net/core/skbuff.c index 9cd5344fad73..c1a33033cbe2 100644 --- a/net/core/skbuff.c +++ b/net/core/skbuff.c @@ -2993,7 +2993,7 @@ struct sk_buff *skb_segment(struct sk_buff *head_skb, skb_put(nskb, len), len, 0); SKB_GSO_CB(nskb)->csum_start = - skb_headroom(nskb) + offset; + skb_headroom(nskb) + doffset; continue; } diff --git a/net/ipv4/ip_tunnel.c b/net/ipv4/ip_tunnel.c index 097b3e7c1e8f..54b6731dab55 100644 --- a/net/ipv4/ip_tunnel.c +++ b/net/ipv4/ip_tunnel.c @@ -73,12 +73,7 @@ static void __tunnel_dst_set(struct ip_tunnel_dst *idst, { struct dst_entry *old_dst; - if (dst) { - if (dst->flags & DST_NOCACHE) - dst = NULL; - else - dst_clone(dst); - } + dst_clone(dst); old_dst = xchg((__force struct dst_entry **)&idst->dst, dst); dst_release(old_dst); } @@ -108,13 +103,14 @@ static struct rtable *tunnel_rtable_get(struct ip_tunnel *t, u32 cookie) rcu_read_lock(); dst = rcu_dereference(this_cpu_ptr(t->dst_cache)->dst); + if (dst && !atomic_inc_not_zero(&dst->__refcnt)) + dst = NULL; if (dst) { if (dst->obsolete && dst->ops->check(dst, cookie) == NULL) { - rcu_read_unlock(); tunnel_dst_reset(t); - return NULL; + dst_release(dst); + dst = NULL; } - dst_hold(dst); } rcu_read_unlock(); return (struct rtable *)dst; diff --git a/net/ipv4/tcp_fastopen.c b/net/ipv4/tcp_fastopen.c index 62e48cf84e60..9771563ab564 100644 --- a/net/ipv4/tcp_fastopen.c +++ b/net/ipv4/tcp_fastopen.c @@ -131,7 +131,7 @@ static bool tcp_fastopen_create_child(struct sock *sk, struct dst_entry *dst, struct request_sock *req) { - struct tcp_sock *tp = tcp_sk(sk); + struct tcp_sock *tp; struct request_sock_queue *queue = &inet_csk(sk)->icsk_accept_queue; struct sock *child; diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c index 40661fc1e233..b5c23756965a 100644 --- a/net/ipv4/tcp_input.c +++ b/net/ipv4/tcp_input.c @@ -1162,7 +1162,7 @@ static int tcp_match_skb_to_sack(struct sock *sk, struct sk_buff *skb, unsigned int new_len = (pkt_len / mss) * mss; if (!in_sack && new_len < pkt_len) { new_len += mss; - if (new_len > skb->len) + if (new_len >= skb->len) return 0; } pkt_len = new_len; diff --git a/net/netfilter/ipvs/ip_vs_ctl.c b/net/netfilter/ipvs/ip_vs_ctl.c index c42e83d2751c..581a6584ed0c 100644 --- a/net/netfilter/ipvs/ip_vs_ctl.c +++ b/net/netfilter/ipvs/ip_vs_ctl.c @@ -3778,6 +3778,7 @@ static void __net_exit ip_vs_control_net_cleanup_sysctl(struct net *net) cancel_delayed_work_sync(&ipvs->defense_work); cancel_work_sync(&ipvs->defense_work.work); unregister_net_sysctl_table(ipvs->sysctl_hdr); + ip_vs_stop_estimator(net, &ipvs->tot_stats); } #else @@ -3840,7 +3841,6 @@ void __net_exit ip_vs_control_net_cleanup(struct net *net) struct netns_ipvs *ipvs = net_ipvs(net); ip_vs_trash_cleanup(net); - ip_vs_stop_estimator(net, &ipvs->tot_stats); ip_vs_control_net_cleanup_sysctl(net); remove_proc_entry("ip_vs_stats_percpu", net->proc_net); remove_proc_entry("ip_vs_stats", net->proc_net); diff --git a/net/netfilter/nf_conntrack_netlink.c b/net/netfilter/nf_conntrack_netlink.c index 58579634427d..300ed1eec729 100644 --- a/net/netfilter/nf_conntrack_netlink.c +++ b/net/netfilter/nf_conntrack_netlink.c @@ -597,6 +597,9 @@ ctnetlink_nlmsg_size(const struct nf_conn *ct) #ifdef CONFIG_NF_CONNTRACK_MARK + nla_total_size(sizeof(u_int32_t)) /* CTA_MARK */ #endif +#ifdef CONFIG_NF_CONNTRACK_ZONES + + nla_total_size(sizeof(u_int16_t)) /* CTA_ZONE */ +#endif + ctnetlink_proto_size(ct) + ctnetlink_label_size(ct) ; @@ -1150,7 +1153,7 @@ static int ctnetlink_done_list(struct netlink_callback *cb) static int ctnetlink_dump_list(struct sk_buff *skb, struct netlink_callback *cb, bool dying) { - struct nf_conn *ct, *last = NULL; + struct nf_conn *ct, *last; struct nf_conntrack_tuple_hash *h; struct hlist_nulls_node *n; struct nfgenmsg *nfmsg = nlmsg_data(cb->nlh); @@ -1163,8 +1166,7 @@ ctnetlink_dump_list(struct sk_buff *skb, struct netlink_callback *cb, bool dying if (cb->args[2]) return 0; - if (cb->args[0] == nr_cpu_ids) - return 0; + last = (struct nf_conn *)cb->args[1]; for (cpu = cb->args[0]; cpu < nr_cpu_ids; cpu++) { struct ct_pcpu *pcpu; @@ -1174,7 +1176,6 @@ ctnetlink_dump_list(struct sk_buff *skb, struct netlink_callback *cb, bool dying pcpu = per_cpu_ptr(net->ct.pcpu_lists, cpu); spin_lock_bh(&pcpu->lock); - last = (struct nf_conn *)cb->args[1]; list = dying ? &pcpu->dying : &pcpu->unconfirmed; restart: hlist_nulls_for_each_entry(h, n, list, hnnode) { @@ -1193,7 +1194,9 @@ restart: ct); rcu_read_unlock(); if (res < 0) { - nf_conntrack_get(&ct->ct_general); + if (!atomic_inc_not_zero(&ct->ct_general.use)) + continue; + cb->args[0] = cpu; cb->args[1] = (unsigned long)ct; spin_unlock_bh(&pcpu->lock); goto out; @@ -1202,10 +1205,10 @@ restart: if (cb->args[1]) { cb->args[1] = 0; goto restart; - } else - cb->args[2] = 1; + } spin_unlock_bh(&pcpu->lock); } + cb->args[2] = 1; out: if (last) nf_ct_put(last); @@ -2040,6 +2043,9 @@ ctnetlink_nfqueue_build_size(const struct nf_conn *ct) #ifdef CONFIG_NF_CONNTRACK_MARK + nla_total_size(sizeof(u_int32_t)) /* CTA_MARK */ #endif +#ifdef CONFIG_NF_CONNTRACK_ZONES + + nla_total_size(sizeof(u_int16_t)) /* CTA_ZONE */ +#endif + ctnetlink_proto_size(ct) ; } diff --git a/net/netfilter/nf_nat_core.c b/net/netfilter/nf_nat_core.c index 09096a670c45..a49907b1dabc 100644 --- a/net/netfilter/nf_nat_core.c +++ b/net/netfilter/nf_nat_core.c @@ -525,6 +525,39 @@ static int nf_nat_proto_remove(struct nf_conn *i, void *data) return i->status & IPS_NAT_MASK ? 1 : 0; } +static int nf_nat_proto_clean(struct nf_conn *ct, void *data) +{ + struct nf_conn_nat *nat = nfct_nat(ct); + + if (nf_nat_proto_remove(ct, data)) + return 1; + + if (!nat || !nat->ct) + return 0; + + /* This netns is being destroyed, and conntrack has nat null binding. + * Remove it from bysource hash, as the table will be freed soon. + * + * Else, when the conntrack is destoyed, nf_nat_cleanup_conntrack() + * will delete entry from already-freed table. + */ + if (!del_timer(&ct->timeout)) + return 1; + + spin_lock_bh(&nf_nat_lock); + hlist_del_rcu(&nat->bysource); + ct->status &= ~IPS_NAT_DONE_MASK; + nat->ct = NULL; + spin_unlock_bh(&nf_nat_lock); + + add_timer(&ct->timeout); + + /* don't delete conntrack. Although that would make things a lot + * simpler, we'd end up flushing all conntracks on nat rmmod. + */ + return 0; +} + static void nf_nat_l4proto_clean(u8 l3proto, u8 l4proto) { struct nf_nat_proto_clean clean = { @@ -795,7 +828,7 @@ static void __net_exit nf_nat_net_exit(struct net *net) { struct nf_nat_proto_clean clean = {}; - nf_ct_iterate_cleanup(net, &nf_nat_proto_remove, &clean, 0, 0); + nf_ct_iterate_cleanup(net, nf_nat_proto_clean, &clean, 0, 0); synchronize_rcu(); nf_ct_free_hashtable(net->ct.nat_bysource, net->ct.nat_htable_size); } diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c index 624e083125b9..ab4566cfcbe4 100644 --- a/net/netfilter/nf_tables_api.c +++ b/net/netfilter/nf_tables_api.c @@ -1730,6 +1730,9 @@ static int nf_tables_newrule(struct sock *nlsk, struct sk_buff *skb, if (!create || nlh->nlmsg_flags & NLM_F_REPLACE) return -EINVAL; handle = nf_tables_alloc_handle(table); + + if (chain->use == UINT_MAX) + return -EOVERFLOW; } if (nla[NFTA_RULE_POSITION]) { @@ -1789,14 +1792,15 @@ static int nf_tables_newrule(struct sock *nlsk, struct sk_buff *skb, if (nlh->nlmsg_flags & NLM_F_REPLACE) { if (nft_rule_is_active_next(net, old_rule)) { - trans = nft_trans_rule_add(&ctx, NFT_MSG_NEWRULE, + trans = nft_trans_rule_add(&ctx, NFT_MSG_DELRULE, old_rule); if (trans == NULL) { err = -ENOMEM; goto err2; } nft_rule_disactivate_next(net, old_rule); - list_add_tail(&rule->list, &old_rule->list); + chain->use--; + list_add_tail_rcu(&rule->list, &old_rule->list); } else { err = -ENOENT; goto err2; @@ -1826,6 +1830,7 @@ err3: list_del_rcu(&nft_trans_rule(trans)->list); nft_rule_clear(net, nft_trans_rule(trans)); nft_trans_destroy(trans); + chain->use++; } err2: nf_tables_rule_destroy(&ctx, rule); @@ -2845,7 +2850,7 @@ static int nf_tables_dump_set(struct sk_buff *skb, struct netlink_callback *cb) goto nla_put_failure; nfmsg = nlmsg_data(nlh); - nfmsg->nfgen_family = NFPROTO_UNSPEC; + nfmsg->nfgen_family = ctx.afi->family; nfmsg->version = NFNETLINK_V0; nfmsg->res_id = 0; diff --git a/net/netfilter/nft_compat.c b/net/netfilter/nft_compat.c index 8a779be832fb..1840989092ed 100644 --- a/net/netfilter/nft_compat.c +++ b/net/netfilter/nft_compat.c @@ -195,6 +195,15 @@ static void nft_target_destroy(const struct nft_ctx *ctx, const struct nft_expr *expr) { struct xt_target *target = expr->ops->data; + void *info = nft_expr_priv(expr); + struct xt_tgdtor_param par; + + par.net = ctx->net; + par.target = target; + par.targinfo = info; + par.family = ctx->afi->family; + if (par.target->destroy != NULL) + par.target->destroy(&par); module_put(target->me); } @@ -382,6 +391,15 @@ static void nft_match_destroy(const struct nft_ctx *ctx, const struct nft_expr *expr) { struct xt_match *match = expr->ops->data; + void *info = nft_expr_priv(expr); + struct xt_mtdtor_param par; + + par.net = ctx->net; + par.match = match; + par.matchinfo = info; + par.family = ctx->afi->family; + if (par.match->destroy != NULL) + par.match->destroy(&par); module_put(match->me); } diff --git a/net/netfilter/nft_nat.c b/net/netfilter/nft_nat.c index a0195d28bcfc..79ff58cd36dc 100644 --- a/net/netfilter/nft_nat.c +++ b/net/netfilter/nft_nat.c @@ -175,12 +175,14 @@ static int nft_nat_dump(struct sk_buff *skb, const struct nft_expr *expr) if (nla_put_be32(skb, NFTA_NAT_REG_ADDR_MAX, htonl(priv->sreg_addr_max))) goto nla_put_failure; - if (nla_put_be32(skb, - NFTA_NAT_REG_PROTO_MIN, htonl(priv->sreg_proto_min))) - goto nla_put_failure; - if (nla_put_be32(skb, - NFTA_NAT_REG_PROTO_MAX, htonl(priv->sreg_proto_max))) - goto nla_put_failure; + if (priv->sreg_proto_min) { + if (nla_put_be32(skb, NFTA_NAT_REG_PROTO_MIN, + htonl(priv->sreg_proto_min))) + goto nla_put_failure; + if (nla_put_be32(skb, NFTA_NAT_REG_PROTO_MAX, + htonl(priv->sreg_proto_max))) + goto nla_put_failure; + } return 0; nla_put_failure: diff --git a/net/sctp/sysctl.c b/net/sctp/sysctl.c index dcb19592761e..12c7e01c2677 100644 --- a/net/sctp/sysctl.c +++ b/net/sctp/sysctl.c @@ -321,41 +321,40 @@ static int proc_sctp_do_hmac_alg(struct ctl_table *ctl, int write, loff_t *ppos) { struct net *net = current->nsproxy->net_ns; - char tmp[8]; struct ctl_table tbl; - int ret; - int changed = 0; + bool changed = false; char *none = "none"; + char tmp[8]; + int ret; memset(&tbl, 0, sizeof(struct ctl_table)); if (write) { tbl.data = tmp; - tbl.maxlen = 8; + tbl.maxlen = sizeof(tmp); } else { tbl.data = net->sctp.sctp_hmac_alg ? : none; tbl.maxlen = strlen(tbl.data); } - ret = proc_dostring(&tbl, write, buffer, lenp, ppos); - if (write) { + ret = proc_dostring(&tbl, write, buffer, lenp, ppos); + if (write && ret == 0) { #ifdef CONFIG_CRYPTO_MD5 if (!strncmp(tmp, "md5", 3)) { net->sctp.sctp_hmac_alg = "md5"; - changed = 1; + changed = true; } #endif #ifdef CONFIG_CRYPTO_SHA1 if (!strncmp(tmp, "sha1", 4)) { net->sctp.sctp_hmac_alg = "sha1"; - changed = 1; + changed = true; } #endif if (!strncmp(tmp, "none", 4)) { net->sctp.sctp_hmac_alg = NULL; - changed = 1; + changed = true; } - if (!changed) ret = -EINVAL; } @@ -368,11 +367,10 @@ static int proc_sctp_do_rto_min(struct ctl_table *ctl, int write, loff_t *ppos) { struct net *net = current->nsproxy->net_ns; - int new_value; - struct ctl_table tbl; unsigned int min = *(unsigned int *) ctl->extra1; unsigned int max = *(unsigned int *) ctl->extra2; - int ret; + struct ctl_table tbl; + int ret, new_value; memset(&tbl, 0, sizeof(struct ctl_table)); tbl.maxlen = sizeof(unsigned int); @@ -381,12 +379,15 @@ static int proc_sctp_do_rto_min(struct ctl_table *ctl, int write, tbl.data = &new_value; else tbl.data = &net->sctp.rto_min; + ret = proc_dointvec(&tbl, write, buffer, lenp, ppos); - if (write) { - if (ret || new_value > max || new_value < min) + if (write && ret == 0) { + if (new_value > max || new_value < min) return -EINVAL; + net->sctp.rto_min = new_value; } + return ret; } @@ -395,11 +396,10 @@ static int proc_sctp_do_rto_max(struct ctl_table *ctl, int write, loff_t *ppos) { struct net *net = current->nsproxy->net_ns; - int new_value; - struct ctl_table tbl; unsigned int min = *(unsigned int *) ctl->extra1; unsigned int max = *(unsigned int *) ctl->extra2; - int ret; + struct ctl_table tbl; + int ret, new_value; memset(&tbl, 0, sizeof(struct ctl_table)); tbl.maxlen = sizeof(unsigned int); @@ -408,12 +408,15 @@ static int proc_sctp_do_rto_max(struct ctl_table *ctl, int write, tbl.data = &new_value; else tbl.data = &net->sctp.rto_max; + ret = proc_dointvec(&tbl, write, buffer, lenp, ppos); - if (write) { - if (ret || new_value > max || new_value < min) + if (write && ret == 0) { + if (new_value > max || new_value < min) return -EINVAL; + net->sctp.rto_max = new_value; } + return ret; } @@ -444,8 +447,7 @@ static int proc_sctp_do_auth(struct ctl_table *ctl, int write, tbl.data = &net->sctp.auth_enable; ret = proc_dointvec(&tbl, write, buffer, lenp, ppos); - - if (write) { + if (write && ret == 0) { struct sock *sk = net->sctp.ctl_sock; net->sctp.auth_enable = new_value; diff --git a/net/sunrpc/auth.c b/net/sunrpc/auth.c index 247e973544bf..f77366717420 100644 --- a/net/sunrpc/auth.c +++ b/net/sunrpc/auth.c @@ -592,6 +592,7 @@ rpcauth_lookupcred(struct rpc_auth *auth, int flags) put_group_info(acred.group_info); return ret; } +EXPORT_SYMBOL_GPL(rpcauth_lookupcred); void rpcauth_init_cred(struct rpc_cred *cred, const struct auth_cred *acred, diff --git a/samples/trace_events/trace-events-sample.h b/samples/trace_events/trace-events-sample.h index 6af373236d73..4b0113f73ee9 100644 --- a/samples/trace_events/trace-events-sample.h +++ b/samples/trace_events/trace-events-sample.h @@ -56,7 +56,8 @@ * struct: This defines the way the data will be stored in the ring buffer. * There are currently two types of elements. __field and __array. * a __field is broken up into (type, name). Where type can be any - * type but an array. + * primitive type (integer, long or pointer). __field_struct() can + * be any static complex data value (struct, union, but not an array). * For an array. there are three fields. (type, name, size). The * type of elements in the array, the name of the field and the size * of the array. diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl index 010b18ef4ea0..182be0f12407 100755 --- a/scripts/checkpatch.pl +++ b/scripts/checkpatch.pl @@ -3476,12 +3476,17 @@ sub process { } } -# unnecessary return in a void function? (a single leading tab, then return;) - if ($sline =~ /^\+\treturn\s*;\s*$/ && - $prevline =~ /^\+/) { +# unnecessary return in a void function +# at end-of-function, with the previous line a single leading tab, then return; +# and the line before that not a goto label target like "out:" + if ($sline =~ /^[ \+]}\s*$/ && + $prevline =~ /^\+\treturn\s*;\s*$/ && + $linenr >= 3 && + $lines[$linenr - 3] =~ /^[ +]/ && + $lines[$linenr - 3] !~ /^[ +]\s*$Ident\s*:/) { WARN("RETURN_VOID", - "void function return statements are not generally useful\n" . $herecurr); - } + "void function return statements are not generally useful\n" . $hereprev); + } # if statements using unnecessary parentheses - ie: if ((foo == bar)) if ($^V && $^V ge 5.10.0 && diff --git a/scripts/recordmcount.h b/scripts/recordmcount.h index 9d1421e63ff8..49b582a225b0 100644 --- a/scripts/recordmcount.h +++ b/scripts/recordmcount.h @@ -163,11 +163,11 @@ static int mcount_adjust = 0; static int MIPS_is_fake_mcount(Elf_Rel const *rp) { - static Elf_Addr old_r_offset; + static Elf_Addr old_r_offset = ~(Elf_Addr)0; Elf_Addr current_r_offset = _w(rp->r_offset); int is_fake; - is_fake = old_r_offset && + is_fake = (old_r_offset != ~(Elf_Addr)0) && (current_r_offset - old_r_offset == MIPS_FAKEMCOUNT_OFFSET); old_r_offset = current_r_offset; diff --git a/sound/pci/hda/hda_auto_parser.c b/sound/pci/hda/hda_auto_parser.c index b684c6e4f301..dabe41975a9d 100644 --- a/sound/pci/hda/hda_auto_parser.c +++ b/sound/pci/hda/hda_auto_parser.c @@ -898,6 +898,7 @@ void snd_hda_pick_fixup(struct hda_codec *codec, if (!strcmp(codec->modelname, models->name)) { codec->fixup_id = models->id; codec->fixup_name = models->name; + codec->fixup_list = fixlist; codec->fixup_forced = 1; return; } diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c index 23fd6b9aecca..25753db97071 100644 --- a/sound/pci/hda/hda_intel.c +++ b/sound/pci/hda/hda_intel.c @@ -288,6 +288,24 @@ static char *driver_short_names[] = { [AZX_DRIVER_GENERIC] = "HD-Audio Generic", }; + +/* Intel HSW/BDW display HDA controller Extended Mode registers. + * EM4 (M value) and EM5 (N Value) are used to convert CDClk (Core Display + * Clock) to 24MHz BCLK: BCLK = CDCLK * M / N + * The values will be lost when the display power well is disabled. + */ +#define ICH6_REG_EM4 0x100c +#define ICH6_REG_EM5 0x1010 + +struct hda_intel { + struct azx chip; + + /* HSW/BDW display HDA controller to restore BCLK from CDCLK */ + unsigned int bclk_m; + unsigned int bclk_n; +}; + + #ifdef CONFIG_X86 static void __mark_pages_wc(struct azx *chip, struct snd_dma_buffer *dmab, bool on) { @@ -580,6 +598,22 @@ static int param_set_xint(const char *val, const struct kernel_param *kp) #define azx_del_card_list(chip) /* NOP */ #endif /* CONFIG_PM */ +static void haswell_save_bclk(struct azx *chip) +{ + struct hda_intel *hda = container_of(chip, struct hda_intel, chip); + + hda->bclk_m = azx_readw(chip, EM4); + hda->bclk_n = azx_readw(chip, EM5); +} + +static void haswell_restore_bclk(struct azx *chip) +{ + struct hda_intel *hda = container_of(chip, struct hda_intel, chip); + + azx_writew(chip, EM4, hda->bclk_m); + azx_writew(chip, EM5, hda->bclk_n); +} + #if defined(CONFIG_PM_SLEEP) || defined(SUPPORT_VGA_SWITCHEROO) /* * power management @@ -606,6 +640,13 @@ static int azx_suspend(struct device *dev) free_irq(chip->irq, chip); chip->irq = -1; } + + /* Save BCLK M/N values before they become invalid in D3. + * Will test if display power well can be released now. + */ + if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL) + haswell_save_bclk(chip); + if (chip->msi) pci_disable_msi(chip->pci); pci_disable_device(pci); @@ -625,8 +666,10 @@ static int azx_resume(struct device *dev) if (chip->disabled) return 0; - if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL) + if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL) { hda_display_power(true); + haswell_restore_bclk(chip); + } pci_set_power_state(pci, PCI_D0); pci_restore_state(pci); if (pci_enable_device(pci) < 0) { @@ -670,8 +713,10 @@ static int azx_runtime_suspend(struct device *dev) azx_stop_chip(chip); azx_enter_link_reset(chip); azx_clear_irq_pending(chip); - if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL) + if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL) { + haswell_save_bclk(chip); hda_display_power(false); + } return 0; } @@ -689,8 +734,10 @@ static int azx_runtime_resume(struct device *dev) if (!(chip->driver_caps & AZX_DCAPS_PM_RUNTIME)) return 0; - if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL) + if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL) { hda_display_power(true); + haswell_restore_bclk(chip); + } /* Read STATESTS before controller reset */ status = azx_readw(chip, STATESTS); @@ -883,6 +930,8 @@ static int register_vga_switcheroo(struct azx *chip) static int azx_free(struct azx *chip) { struct pci_dev *pci = chip->pci; + struct hda_intel *hda = container_of(chip, struct hda_intel, chip); + int i; if ((chip->driver_caps & AZX_DCAPS_PM_RUNTIME) @@ -930,7 +979,7 @@ static int azx_free(struct azx *chip) hda_display_power(false); hda_i915_exit(); } - kfree(chip); + kfree(hda); return 0; } @@ -1174,6 +1223,7 @@ static int azx_create(struct snd_card *card, struct pci_dev *pci, static struct snd_device_ops ops = { .dev_free = azx_dev_free, }; + struct hda_intel *hda; struct azx *chip; int err; @@ -1183,13 +1233,14 @@ static int azx_create(struct snd_card *card, struct pci_dev *pci, if (err < 0) return err; - chip = kzalloc(sizeof(*chip), GFP_KERNEL); - if (!chip) { - dev_err(card->dev, "Cannot allocate chip\n"); + hda = kzalloc(sizeof(*hda), GFP_KERNEL); + if (!hda) { + dev_err(card->dev, "Cannot allocate hda\n"); pci_disable_device(pci); return -ENOMEM; } + chip = &hda->chip; spin_lock_init(&chip->reg_lock); mutex_init(&chip->open_mutex); chip->card = card; diff --git a/sound/pci/hda/hda_local.h b/sound/pci/hda/hda_local.h index ebd1fa6f015c..4e2d4863daa1 100644 --- a/sound/pci/hda/hda_local.h +++ b/sound/pci/hda/hda_local.h @@ -417,6 +417,27 @@ struct snd_hda_pin_quirk { int value; /* quirk value */ }; +#ifdef CONFIG_SND_DEBUG_VERBOSE + +#define SND_HDA_PIN_QUIRK(_codec, _subvendor, _name, _value, _pins...) \ + { .codec = _codec,\ + .subvendor = _subvendor,\ + .name = _name,\ + .value = _value,\ + .pins = (const struct hda_pintbl[]) { _pins } \ + } +#else + +#define SND_HDA_PIN_QUIRK(_codec, _subvendor, _name, _value, _pins...) \ + { .codec = _codec,\ + .subvendor = _subvendor,\ + .value = _value,\ + .pins = (const struct hda_pintbl[]) { _pins } \ + } + +#endif + + /* fixup types */ enum { HDA_FIXUP_INVALID, diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c index 3e4417b0ddbe..4fe876b65fda 100644 --- a/sound/pci/hda/patch_hdmi.c +++ b/sound/pci/hda/patch_hdmi.c @@ -2204,7 +2204,7 @@ static int generic_hdmi_resume(struct hda_codec *codec) struct hdmi_spec *spec = codec->spec; int pin_idx; - generic_hdmi_init(codec); + codec->patch_ops.init(codec); snd_hda_codec_resume_amp(codec); snd_hda_codec_resume_cache(codec); diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index af76995fa966..1c654effcd1a 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -4962,228 +4962,129 @@ static const struct hda_model_fixup alc269_fixup_models[] = { }; static const struct snd_hda_pin_quirk alc269_pin_fixup_tbl[] = { - { - .codec = 0x10ec0255, - .subvendor = 0x1028, -#ifdef CONFIG_SND_DEBUG_VERBOSE - .name = "Dell", -#endif - .pins = (const struct hda_pintbl[]) { - {0x12, 0x90a60140}, - {0x14, 0x90170110}, - {0x17, 0x40000000}, - {0x18, 0x411111f0}, - {0x19, 0x411111f0}, - {0x1a, 0x411111f0}, - {0x1b, 0x411111f0}, - {0x1d, 0x40700001}, - {0x1e, 0x411111f0}, - {0x21, 0x02211020}, - }, - .value = ALC255_FIXUP_DELL1_MIC_NO_PRESENCE, - }, - { - .codec = 0x10ec0255, - .subvendor = 0x1028, -#ifdef CONFIG_SND_DEBUG_VERBOSE - .name = "Dell", -#endif - .pins = (const struct hda_pintbl[]) { - {0x12, 0x90a60160}, - {0x14, 0x90170120}, - {0x17, 0x40000000}, - {0x18, 0x411111f0}, - {0x19, 0x411111f0}, - {0x1a, 0x411111f0}, - {0x1b, 0x411111f0}, - {0x1d, 0x40700001}, - {0x1e, 0x411111f0}, - {0x21, 0x02211030}, - }, - .value = ALC255_FIXUP_DELL1_MIC_NO_PRESENCE, - }, - { - .codec = 0x10ec0255, - .subvendor = 0x1028, -#ifdef CONFIG_SND_DEBUG_VERBOSE - .name = "Dell", -#endif - .pins = (const struct hda_pintbl[]) { - {0x12, 0x90a60160}, - {0x14, 0x90170120}, - {0x17, 0x90170140}, - {0x18, 0x40000000}, - {0x19, 0x411111f0}, - {0x1a, 0x411111f0}, - {0x1b, 0x411111f0}, - {0x1d, 0x41163b05}, - {0x1e, 0x411111f0}, - {0x21, 0x0321102f}, - }, - .value = ALC255_FIXUP_DELL1_MIC_NO_PRESENCE, - }, - { - .codec = 0x10ec0255, - .subvendor = 0x1028, -#ifdef CONFIG_SND_DEBUG_VERBOSE - .name = "Dell", -#endif - .pins = (const struct hda_pintbl[]) { - {0x12, 0x90a60160}, - {0x14, 0x90170130}, - {0x17, 0x40000000}, - {0x18, 0x411111f0}, - {0x19, 0x411111f0}, - {0x1a, 0x411111f0}, - {0x1b, 0x411111f0}, - {0x1d, 0x40700001}, - {0x1e, 0x411111f0}, - {0x21, 0x02211040}, - }, - .value = ALC255_FIXUP_DELL1_MIC_NO_PRESENCE, - }, - { - .codec = 0x10ec0255, - .subvendor = 0x1028, -#ifdef CONFIG_SND_DEBUG_VERBOSE - .name = "Dell", -#endif - .pins = (const struct hda_pintbl[]) { - {0x12, 0x90a60160}, - {0x14, 0x90170140}, - {0x17, 0x40000000}, - {0x18, 0x411111f0}, - {0x19, 0x411111f0}, - {0x1a, 0x411111f0}, - {0x1b, 0x411111f0}, - {0x1d, 0x40700001}, - {0x1e, 0x411111f0}, - {0x21, 0x02211050}, - }, - .value = ALC255_FIXUP_DELL1_MIC_NO_PRESENCE, - }, - { - .codec = 0x10ec0255, - .subvendor = 0x1028, -#ifdef CONFIG_SND_DEBUG_VERBOSE - .name = "Dell", -#endif - .pins = (const struct hda_pintbl[]) { - {0x12, 0x90a60170}, - {0x14, 0x90170120}, - {0x17, 0x40000000}, - {0x18, 0x411111f0}, - {0x19, 0x411111f0}, - {0x1a, 0x411111f0}, - {0x1b, 0x411111f0}, - {0x1d, 0x40700001}, - {0x1e, 0x411111f0}, - {0x21, 0x02211030}, - }, - .value = ALC255_FIXUP_DELL1_MIC_NO_PRESENCE, - }, - { - .codec = 0x10ec0255, - .subvendor = 0x1028, -#ifdef CONFIG_SND_DEBUG_VERBOSE - .name = "Dell", -#endif - .pins = (const struct hda_pintbl[]) { - {0x12, 0x90a60170}, - {0x14, 0x90170130}, - {0x17, 0x40000000}, - {0x18, 0x411111f0}, - {0x19, 0x411111f0}, - {0x1a, 0x411111f0}, - {0x1b, 0x411111f0}, - {0x1d, 0x40700001}, - {0x1e, 0x411111f0}, - {0x21, 0x02211040}, - }, - .value = ALC255_FIXUP_DELL1_MIC_NO_PRESENCE, - }, - { - .codec = 0x10ec0283, - .subvendor = 0x1028, -#ifdef CONFIG_SND_DEBUG_VERBOSE - .name = "Dell", -#endif - .pins = (const struct hda_pintbl[]) { - {0x12, 0x90a60130}, - {0x14, 0x90170110}, - {0x17, 0x40020008}, - {0x18, 0x411111f0}, - {0x19, 0x411111f0}, - {0x1a, 0x411111f0}, - {0x1b, 0x411111f0}, - {0x1d, 0x40e00001}, - {0x1e, 0x411111f0}, - {0x21, 0x0321101f}, - }, - .value = ALC269_FIXUP_DELL1_MIC_NO_PRESENCE, - }, - { - .codec = 0x10ec0283, - .subvendor = 0x1028, -#ifdef CONFIG_SND_DEBUG_VERBOSE - .name = "Dell", -#endif - .pins = (const struct hda_pintbl[]) { - {0x12, 0x90a60160}, - {0x14, 0x90170120}, - {0x17, 0x40000000}, - {0x18, 0x411111f0}, - {0x19, 0x411111f0}, - {0x1a, 0x411111f0}, - {0x1b, 0x411111f0}, - {0x1d, 0x40700001}, - {0x1e, 0x411111f0}, - {0x21, 0x02211030}, - }, - .value = ALC269_FIXUP_DELL1_MIC_NO_PRESENCE, - }, - { - .codec = 0x10ec0292, - .subvendor = 0x1028, -#ifdef CONFIG_SND_DEBUG_VERBOSE - .name = "Dell", -#endif - .pins = (const struct hda_pintbl[]) { - {0x12, 0x90a60140}, - {0x13, 0x411111f0}, - {0x14, 0x90170110}, - {0x15, 0x0221401f}, - {0x16, 0x411111f0}, - {0x18, 0x411111f0}, - {0x19, 0x411111f0}, - {0x1a, 0x411111f0}, - {0x1b, 0x411111f0}, - {0x1d, 0x40700001}, - {0x1e, 0x411111f0}, - }, - .value = ALC269_FIXUP_DELL3_MIC_NO_PRESENCE, - }, - { - .codec = 0x10ec0293, - .subvendor = 0x1028, -#ifdef CONFIG_SND_DEBUG_VERBOSE - .name = "Dell", -#endif - .pins = (const struct hda_pintbl[]) { - {0x12, 0x40000000}, - {0x13, 0x90a60140}, - {0x14, 0x90170110}, - {0x15, 0x0221401f}, - {0x16, 0x21014020}, - {0x18, 0x411111f0}, - {0x19, 0x21a19030}, - {0x1a, 0x411111f0}, - {0x1b, 0x411111f0}, - {0x1d, 0x40700001}, - {0x1e, 0x411111f0}, - }, - .value = ALC293_FIXUP_DELL1_MIC_NO_PRESENCE, - }, + SND_HDA_PIN_QUIRK(0x10ec0255, 0x1028, "Dell", ALC255_FIXUP_DELL1_MIC_NO_PRESENCE, + {0x12, 0x90a60140}, + {0x14, 0x90170110}, + {0x17, 0x40000000}, + {0x18, 0x411111f0}, + {0x19, 0x411111f0}, + {0x1a, 0x411111f0}, + {0x1b, 0x411111f0}, + {0x1d, 0x40700001}, + {0x1e, 0x411111f0}, + {0x21, 0x02211020}), + SND_HDA_PIN_QUIRK(0x10ec0255, 0x1028, "Dell", ALC255_FIXUP_DELL1_MIC_NO_PRESENCE, + {0x12, 0x90a60160}, + {0x14, 0x90170120}, + {0x17, 0x40000000}, + {0x18, 0x411111f0}, + {0x19, 0x411111f0}, + {0x1a, 0x411111f0}, + {0x1b, 0x411111f0}, + {0x1d, 0x40700001}, + {0x1e, 0x411111f0}, + {0x21, 0x02211030}), + SND_HDA_PIN_QUIRK(0x10ec0255, 0x1028, "Dell", ALC255_FIXUP_DELL1_MIC_NO_PRESENCE, + {0x12, 0x90a60160}, + {0x14, 0x90170120}, + {0x17, 0x90170140}, + {0x18, 0x40000000}, + {0x19, 0x411111f0}, + {0x1a, 0x411111f0}, + {0x1b, 0x411111f0}, + {0x1d, 0x41163b05}, + {0x1e, 0x411111f0}, + {0x21, 0x0321102f}), + SND_HDA_PIN_QUIRK(0x10ec0255, 0x1028, "Dell", ALC255_FIXUP_DELL1_MIC_NO_PRESENCE, + {0x12, 0x90a60160}, + {0x14, 0x90170130}, + {0x17, 0x40000000}, + {0x18, 0x411111f0}, + {0x19, 0x411111f0}, + {0x1a, 0x411111f0}, + {0x1b, 0x411111f0}, + {0x1d, 0x40700001}, + {0x1e, 0x411111f0}, + {0x21, 0x02211040}), + SND_HDA_PIN_QUIRK(0x10ec0255, 0x1028, "Dell", ALC255_FIXUP_DELL1_MIC_NO_PRESENCE, + {0x12, 0x90a60160}, + {0x14, 0x90170140}, + {0x17, 0x40000000}, + {0x18, 0x411111f0}, + {0x19, 0x411111f0}, + {0x1a, 0x411111f0}, + {0x1b, 0x411111f0}, + {0x1d, 0x40700001}, + {0x1e, 0x411111f0}, + {0x21, 0x02211050}), + SND_HDA_PIN_QUIRK(0x10ec0255, 0x1028, "Dell", ALC255_FIXUP_DELL1_MIC_NO_PRESENCE, + {0x12, 0x90a60170}, + {0x14, 0x90170120}, + {0x17, 0x40000000}, + {0x18, 0x411111f0}, + {0x19, 0x411111f0}, + {0x1a, 0x411111f0}, + {0x1b, 0x411111f0}, + {0x1d, 0x40700001}, + {0x1e, 0x411111f0}, + {0x21, 0x02211030}), + SND_HDA_PIN_QUIRK(0x10ec0255, 0x1028, "Dell", ALC255_FIXUP_DELL1_MIC_NO_PRESENCE, + {0x12, 0x90a60170}, + {0x14, 0x90170130}, + {0x17, 0x40000000}, + {0x18, 0x411111f0}, + {0x19, 0x411111f0}, + {0x1a, 0x411111f0}, + {0x1b, 0x411111f0}, + {0x1d, 0x40700001}, + {0x1e, 0x411111f0}, + {0x21, 0x02211040}), + SND_HDA_PIN_QUIRK(0x10ec0283, 0x1028, "Dell", ALC269_FIXUP_DELL1_MIC_NO_PRESENCE, + {0x12, 0x90a60130}, + {0x14, 0x90170110}, + {0x17, 0x40020008}, + {0x18, 0x411111f0}, + {0x19, 0x411111f0}, + {0x1a, 0x411111f0}, + {0x1b, 0x411111f0}, + {0x1d, 0x40e00001}, + {0x1e, 0x411111f0}, + {0x21, 0x0321101f}), + SND_HDA_PIN_QUIRK(0x10ec0283, 0x1028, "Dell", ALC269_FIXUP_DELL1_MIC_NO_PRESENCE, + {0x12, 0x90a60160}, + {0x14, 0x90170120}, + {0x17, 0x40000000}, + {0x18, 0x411111f0}, + {0x19, 0x411111f0}, + {0x1a, 0x411111f0}, + {0x1b, 0x411111f0}, + {0x1d, 0x40700001}, + {0x1e, 0x411111f0}, + {0x21, 0x02211030}), + SND_HDA_PIN_QUIRK(0x10ec0292, 0x1028, "Dell", ALC269_FIXUP_DELL3_MIC_NO_PRESENCE, + {0x12, 0x90a60140}, + {0x13, 0x411111f0}, + {0x14, 0x90170110}, + {0x15, 0x0221401f}, + {0x16, 0x411111f0}, + {0x18, 0x411111f0}, + {0x19, 0x411111f0}, + {0x1a, 0x411111f0}, + {0x1b, 0x411111f0}, + {0x1d, 0x40700001}, + {0x1e, 0x411111f0}), + SND_HDA_PIN_QUIRK(0x10ec0293, 0x1028, "Dell", ALC293_FIXUP_DELL1_MIC_NO_PRESENCE, + {0x12, 0x40000000}, + {0x13, 0x90a60140}, + {0x14, 0x90170110}, + {0x15, 0x0221401f}, + {0x16, 0x21014020}, + {0x18, 0x411111f0}, + {0x19, 0x21a19030}, + {0x1a, 0x411111f0}, + {0x1b, 0x411111f0}, + {0x1d, 0x40700001}, + {0x1e, 0x411111f0}), {} }; @@ -6039,90 +5940,66 @@ static const struct hda_model_fixup alc662_fixup_models[] = { }; static const struct snd_hda_pin_quirk alc662_pin_fixup_tbl[] = { - { - .codec = 0x10ec0668, - .subvendor = 0x1028, -#ifdef CONFIG_SND_DEBUG_VERBOSE - .name = "Dell", -#endif - .pins = (const struct hda_pintbl[]) { - {0x12, 0x99a30130}, - {0x14, 0x90170110}, - {0x15, 0x0321101f}, - {0x16, 0x03011020}, - {0x18, 0x40000008}, - {0x19, 0x411111f0}, - {0x1a, 0x411111f0}, - {0x1b, 0x411111f0}, - {0x1d, 0x41000001}, - {0x1e, 0x411111f0}, - {0x1f, 0x411111f0}, - }, - .value = ALC668_FIXUP_AUTO_MUTE, - }, - { - .codec = 0x10ec0668, - .subvendor = 0x1028, -#ifdef CONFIG_SND_DEBUG_VERBOSE - .name = "Dell", -#endif - .pins = (const struct hda_pintbl[]) { - {0x12, 0x99a30140}, - {0x14, 0x90170110}, - {0x15, 0x0321101f}, - {0x16, 0x03011020}, - {0x18, 0x40000008}, - {0x19, 0x411111f0}, - {0x1a, 0x411111f0}, - {0x1b, 0x411111f0}, - {0x1d, 0x41000001}, - {0x1e, 0x411111f0}, - {0x1f, 0x411111f0}, - }, - .value = ALC668_FIXUP_AUTO_MUTE, - }, - { - .codec = 0x10ec0668, - .subvendor = 0x1028, -#ifdef CONFIG_SND_DEBUG_VERBOSE - .name = "Dell", -#endif - .pins = (const struct hda_pintbl[]) { - {0x12, 0x99a30150}, - {0x14, 0x90170110}, - {0x15, 0x0321101f}, - {0x16, 0x03011020}, - {0x18, 0x40000008}, - {0x19, 0x411111f0}, - {0x1a, 0x411111f0}, - {0x1b, 0x411111f0}, - {0x1d, 0x41000001}, - {0x1e, 0x411111f0}, - {0x1f, 0x411111f0}, - }, - .value = ALC668_FIXUP_AUTO_MUTE, - }, - { - .codec = 0x10ec0668, - .subvendor = 0x1028, -#ifdef CONFIG_SND_DEBUG_VERBOSE - .name = "Dell", -#endif - .pins = (const struct hda_pintbl[]) { - {0x12, 0x411111f0}, - {0x14, 0x90170110}, - {0x15, 0x0321101f}, - {0x16, 0x03011020}, - {0x18, 0x40000008}, - {0x19, 0x411111f0}, - {0x1a, 0x411111f0}, - {0x1b, 0x411111f0}, - {0x1d, 0x41000001}, - {0x1e, 0x411111f0}, - {0x1f, 0x411111f0}, - }, - .value = ALC668_FIXUP_AUTO_MUTE, - }, + SND_HDA_PIN_QUIRK(0x10ec0668, 0x1028, "Dell", ALC668_FIXUP_AUTO_MUTE, + {0x12, 0x99a30130}, + {0x14, 0x90170110}, + {0x15, 0x0321101f}, + {0x16, 0x03011020}, + {0x18, 0x40000008}, + {0x19, 0x411111f0}, + {0x1a, 0x411111f0}, + {0x1b, 0x411111f0}, + {0x1d, 0x41000001}, + {0x1e, 0x411111f0}, + {0x1f, 0x411111f0}), + SND_HDA_PIN_QUIRK(0x10ec0668, 0x1028, "Dell", ALC668_FIXUP_AUTO_MUTE, + {0x12, 0x99a30140}, + {0x14, 0x90170110}, + {0x15, 0x0321101f}, + {0x16, 0x03011020}, + {0x18, 0x40000008}, + {0x19, 0x411111f0}, + {0x1a, 0x411111f0}, + {0x1b, 0x411111f0}, + {0x1d, 0x41000001}, + {0x1e, 0x411111f0}, + {0x1f, 0x411111f0}), + SND_HDA_PIN_QUIRK(0x10ec0668, 0x1028, "Dell", ALC668_FIXUP_AUTO_MUTE, + {0x12, 0x99a30150}, + {0x14, 0x90170110}, + {0x15, 0x0321101f}, + {0x16, 0x03011020}, + {0x18, 0x40000008}, + {0x19, 0x411111f0}, + {0x1a, 0x411111f0}, + {0x1b, 0x411111f0}, + {0x1d, 0x41000001}, + {0x1e, 0x411111f0}, + {0x1f, 0x411111f0}), + SND_HDA_PIN_QUIRK(0x10ec0668, 0x1028, "Dell", ALC668_FIXUP_AUTO_MUTE, + {0x12, 0x411111f0}, + {0x14, 0x90170110}, + {0x15, 0x0321101f}, + {0x16, 0x03011020}, + {0x18, 0x40000008}, + {0x19, 0x411111f0}, + {0x1a, 0x411111f0}, + {0x1b, 0x411111f0}, + {0x1d, 0x41000001}, + {0x1e, 0x411111f0}, + {0x1f, 0x411111f0}), + SND_HDA_PIN_QUIRK(0x10ec0668, 0x1028, "Dell XPS 15", ALC668_FIXUP_AUTO_MUTE, + {0x12, 0x90a60130}, + {0x14, 0x90170110}, + {0x15, 0x0321101f}, + {0x16, 0x40000000}, + {0x18, 0x411111f0}, + {0x19, 0x411111f0}, + {0x1a, 0x411111f0}, + {0x1b, 0x411111f0}, + {0x1d, 0x40d6832d}, + {0x1e, 0x411111f0}, + {0x1f, 0x411111f0}), {} }; diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c index 7f40a150899c..3744ea4e843d 100644 --- a/sound/pci/hda/patch_sigmatel.c +++ b/sound/pci/hda/patch_sigmatel.c @@ -122,6 +122,12 @@ enum { }; enum { + STAC_92HD95_HP_LED, + STAC_92HD95_HP_BASS, + STAC_92HD95_MODELS +}; + +enum { STAC_925x_REF, STAC_M1, STAC_M1_2, @@ -4128,6 +4134,48 @@ static const struct snd_pci_quirk stac9205_fixup_tbl[] = { {} /* terminator */ }; +static void stac92hd95_fixup_hp_led(struct hda_codec *codec, + const struct hda_fixup *fix, int action) +{ + struct sigmatel_spec *spec = codec->spec; + + if (action != HDA_FIXUP_ACT_PRE_PROBE) + return; + + if (find_mute_led_cfg(codec, spec->default_polarity)) + codec_dbg(codec, "mute LED gpio %d polarity %d\n", + spec->gpio_led, + spec->gpio_led_polarity); +} + +static const struct hda_fixup stac92hd95_fixups[] = { + [STAC_92HD95_HP_LED] = { + .type = HDA_FIXUP_FUNC, + .v.func = stac92hd95_fixup_hp_led, + }, + [STAC_92HD95_HP_BASS] = { + .type = HDA_FIXUP_VERBS, + .v.verbs = (const struct hda_verb[]) { + {0x1a, 0x795, 0x00}, /* HPF to 100Hz */ + {} + }, + .chained = true, + .chain_id = STAC_92HD95_HP_LED, + }, +}; + +static const struct snd_pci_quirk stac92hd95_fixup_tbl[] = { + SND_PCI_QUIRK(PCI_VENDOR_ID_HP, 0x1911, "HP Spectre 13", STAC_92HD95_HP_BASS), + {} /* terminator */ +}; + +static const struct hda_model_fixup stac92hd95_models[] = { + { .id = STAC_92HD95_HP_LED, .name = "hp-led" }, + { .id = STAC_92HD95_HP_BASS, .name = "hp-bass" }, + {} +}; + + static int stac_parse_auto_config(struct hda_codec *codec) { struct sigmatel_spec *spec = codec->spec; @@ -4580,10 +4628,16 @@ static int patch_stac92hd95(struct hda_codec *codec) spec->gen.beep_nid = 0x19; /* digital beep */ spec->pwr_nids = stac92hd95_pwr_nids; spec->num_pwrs = ARRAY_SIZE(stac92hd95_pwr_nids); - spec->default_polarity = -1; /* no default cfg */ + spec->default_polarity = 0; codec->patch_ops = stac_patch_ops; + snd_hda_pick_fixup(codec, stac92hd95_models, stac92hd95_fixup_tbl, + stac92hd95_fixups); + snd_hda_apply_fixup(codec, HDA_FIXUP_ACT_PRE_PROBE); + + stac_setup_gpio(codec); + err = stac_parse_auto_config(codec); if (err < 0) { stac_free(codec); @@ -4592,6 +4646,8 @@ static int patch_stac92hd95(struct hda_codec *codec) codec->proc_widget_hook = stac92hd_proc_hook; + snd_hda_apply_fixup(codec, HDA_FIXUP_ACT_PROBE); + return 0; } diff --git a/sound/usb/card.c b/sound/usb/card.c index c3b5b7dca1c3..a09e5f3519e3 100644 --- a/sound/usb/card.c +++ b/sound/usb/card.c @@ -307,6 +307,11 @@ static int snd_usb_create_streams(struct snd_usb_audio *chip, int ctrlif) static int snd_usb_audio_free(struct snd_usb_audio *chip) { + struct list_head *p, *n; + + list_for_each_safe(p, n, &chip->ep_list) + snd_usb_endpoint_free(p); + mutex_destroy(&chip->mutex); kfree(chip); return 0; @@ -585,7 +590,7 @@ static void snd_usb_audio_disconnect(struct usb_device *dev, struct snd_usb_audio *chip) { struct snd_card *card; - struct list_head *p, *n; + struct list_head *p; if (chip == (void *)-1L) return; @@ -598,14 +603,16 @@ static void snd_usb_audio_disconnect(struct usb_device *dev, mutex_lock(®ister_mutex); chip->num_interfaces--; if (chip->num_interfaces <= 0) { + struct snd_usb_endpoint *ep; + snd_card_disconnect(card); /* release the pcm resources */ list_for_each(p, &chip->pcm_list) { snd_usb_stream_disconnect(p); } /* release the endpoint resources */ - list_for_each_safe(p, n, &chip->ep_list) { - snd_usb_endpoint_free(p); + list_for_each_entry(ep, &chip->ep_list, list) { + snd_usb_endpoint_release(ep); } /* release the midi resources */ list_for_each(p, &chip->midi_list) { diff --git a/sound/usb/endpoint.c b/sound/usb/endpoint.c index 289f582c9130..114e3e7ff511 100644 --- a/sound/usb/endpoint.c +++ b/sound/usb/endpoint.c @@ -987,19 +987,30 @@ void snd_usb_endpoint_deactivate(struct snd_usb_endpoint *ep) } /** + * snd_usb_endpoint_release: Tear down an snd_usb_endpoint + * + * @ep: the endpoint to release + * + * This function does not care for the endpoint's use count but will tear + * down all the streaming URBs immediately. + */ +void snd_usb_endpoint_release(struct snd_usb_endpoint *ep) +{ + release_urbs(ep, 1); +} + +/** * snd_usb_endpoint_free: Free the resources of an snd_usb_endpoint * * @ep: the list header of the endpoint to free * - * This function does not care for the endpoint's use count but will tear - * down all the streaming URBs immediately and free all resources. + * This free all resources of the given ep. */ void snd_usb_endpoint_free(struct list_head *head) { struct snd_usb_endpoint *ep; ep = list_entry(head, struct snd_usb_endpoint, list); - release_urbs(ep, 1); kfree(ep); } diff --git a/sound/usb/endpoint.h b/sound/usb/endpoint.h index 1c7e8ee48abc..e61ee5c356a3 100644 --- a/sound/usb/endpoint.h +++ b/sound/usb/endpoint.h @@ -23,6 +23,7 @@ void snd_usb_endpoint_stop(struct snd_usb_endpoint *ep); void snd_usb_endpoint_sync_pending_stop(struct snd_usb_endpoint *ep); int snd_usb_endpoint_activate(struct snd_usb_endpoint *ep); void snd_usb_endpoint_deactivate(struct snd_usb_endpoint *ep); +void snd_usb_endpoint_release(struct snd_usb_endpoint *ep); void snd_usb_endpoint_free(struct list_head *head); int snd_usb_endpoint_implicit_feedback_sink(struct snd_usb_endpoint *ep); diff --git a/tools/testing/selftests/cpu-hotplug/Makefile b/tools/testing/selftests/cpu-hotplug/Makefile index ae5faf9aade2..790c23a9db44 100644 --- a/tools/testing/selftests/cpu-hotplug/Makefile +++ b/tools/testing/selftests/cpu-hotplug/Makefile @@ -1,6 +1,6 @@ all: run_tests: - @/bin/sh ./on-off-test.sh || echo "cpu-hotplug selftests: [FAIL]" + @/bin/bash ./on-off-test.sh || echo "cpu-hotplug selftests: [FAIL]" clean: diff --git a/tools/testing/selftests/ipc/msgque.c b/tools/testing/selftests/ipc/msgque.c index aa290c0de6f5..552f0810bffb 100644 --- a/tools/testing/selftests/ipc/msgque.c +++ b/tools/testing/selftests/ipc/msgque.c @@ -193,6 +193,11 @@ int main(int argc, char **argv) int msg, pid, err; struct msgque_data msgque; + if (getuid() != 0) { + printf("Please run the test as root - Exiting.\n"); + exit(1); + } + msgque.key = ftok(argv[0], 822155650); if (msgque.key == -1) { printf("Can't make key\n"); diff --git a/tools/testing/selftests/memory-hotplug/Makefile b/tools/testing/selftests/memory-hotplug/Makefile index 350bfeda3aa8..058c76f5d102 100644 --- a/tools/testing/selftests/memory-hotplug/Makefile +++ b/tools/testing/selftests/memory-hotplug/Makefile @@ -1,6 +1,6 @@ all: run_tests: - @/bin/sh ./on-off-test.sh || echo "memory-hotplug selftests: [FAIL]" + @/bin/bash ./on-off-test.sh || echo "memory-hotplug selftests: [FAIL]" clean: diff --git a/tools/testing/selftests/powerpc/tm/Makefile b/tools/testing/selftests/powerpc/tm/Makefile index 51267f4184a6..2cede239a074 100644 --- a/tools/testing/selftests/powerpc/tm/Makefile +++ b/tools/testing/selftests/powerpc/tm/Makefile @@ -2,7 +2,7 @@ PROGS := tm-resched-dscr all: $(PROGS) -$(PROGS): +$(PROGS): ../harness.c run_tests: all @-for PROG in $(PROGS); do \ diff --git a/tools/testing/selftests/powerpc/tm/tm-resched-dscr.c b/tools/testing/selftests/powerpc/tm/tm-resched-dscr.c index ee98e3886af2..42d4c8caad81 100644 --- a/tools/testing/selftests/powerpc/tm/tm-resched-dscr.c +++ b/tools/testing/selftests/powerpc/tm/tm-resched-dscr.c @@ -28,6 +28,8 @@ #include <assert.h> #include <asm/tm.h> +#include "utils.h" + #define TBEGIN ".long 0x7C00051D ;" #define TEND ".long 0x7C00055D ;" #define TCHECK ".long 0x7C00059C ;" @@ -36,7 +38,8 @@ #define SPRN_TEXASR 0x82 #define SPRN_DSCR 0x03 -int main(void) { +int test_body(void) +{ uint64_t rv, dscr1 = 1, dscr2, texasr; printf("Check DSCR TM context switch: "); @@ -81,10 +84,15 @@ int main(void) { } if (dscr2 != dscr1) { printf(" FAIL\n"); - exit(EXIT_FAILURE); + return 1; } else { printf(" OK\n"); - exit(EXIT_SUCCESS); + return 0; } } } + +int main(void) +{ + return test_harness(test_body, "tm_resched_dscr"); +} |