diff options
Diffstat (limited to 'arch')
25 files changed, 134 insertions, 129 deletions
diff --git a/arch/ia64/kernel/perfmon.c b/arch/ia64/kernel/perfmon.c index 6b1852f7f972..39e534f5a3b0 100644 --- a/arch/ia64/kernel/perfmon.c +++ b/arch/ia64/kernel/perfmon.c @@ -618,16 +618,15 @@ pfm_get_unmapped_area(struct file *file, unsigned long addr, unsigned long len, } -static int -pfmfs_get_sb(struct file_system_type *fs_type, int flags, const char *dev_name, void *data, - struct vfsmount *mnt) +static struct dentry * +pfmfs_mount(struct file_system_type *fs_type, int flags, const char *dev_name, void *data) { - return get_sb_pseudo(fs_type, "pfm:", NULL, PFMFS_MAGIC, mnt); + return mount_pseudo(fs_type, "pfm:", NULL, PFMFS_MAGIC); } static struct file_system_type pfm_fs_type = { .name = "pfmfs", - .get_sb = pfmfs_get_sb, + .mount = pfmfs_mount, .kill_sb = kill_anon_super, }; diff --git a/arch/powerpc/platforms/cell/spufs/inode.c b/arch/powerpc/platforms/cell/spufs/inode.c index 5dec408d6703..3532b92de983 100644 --- a/arch/powerpc/platforms/cell/spufs/inode.c +++ b/arch/powerpc/platforms/cell/spufs/inode.c @@ -798,17 +798,17 @@ spufs_fill_super(struct super_block *sb, void *data, int silent) return spufs_create_root(sb, data); } -static int -spufs_get_sb(struct file_system_type *fstype, int flags, - const char *name, void *data, struct vfsmount *mnt) +static struct dentry * +spufs_mount(struct file_system_type *fstype, int flags, + const char *name, void *data) { - return get_sb_single(fstype, flags, data, spufs_fill_super, mnt); + return mount_single(fstype, flags, data, spufs_fill_super); } static struct file_system_type spufs_type = { .owner = THIS_MODULE, .name = "spufs", - .get_sb = spufs_get_sb, + .mount = spufs_mount, .kill_sb = kill_litter_super, }; diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig index fabb40bc4e19..e0b98e71ff47 100644 --- a/arch/s390/Kconfig +++ b/arch/s390/Kconfig @@ -80,6 +80,7 @@ config S390 select HAVE_FUNCTION_TRACER select HAVE_FUNCTION_TRACE_MCOUNT_TEST select HAVE_FTRACE_MCOUNT_RECORD + select HAVE_C_RECORDMCOUNT select HAVE_SYSCALL_TRACEPOINTS select HAVE_DYNAMIC_FTRACE select HAVE_FUNCTION_GRAPH_TRACER @@ -144,7 +145,7 @@ source "kernel/time/Kconfig" config 64BIT bool "64 bit kernel" help - Select this option if you have a 64 bit IBM zSeries machine + Select this option if you have an IBM z/Architecture machine and want to use the 64 bit addressing mode. config 32BIT @@ -196,9 +197,18 @@ config HOTPLUG_CPU can be controlled through /sys/devices/system/cpu/cpu#. Say N if you want to disable CPU hotplug. +config SCHED_MC + def_bool y + prompt "Multi-core scheduler support" + depends on SMP + help + Multi-core scheduler support improves the CPU scheduler's decision + making when dealing with multi-core CPU chips at a cost of slightly + increased overhead in some places. + config SCHED_BOOK bool "Book scheduler support" - depends on SMP + depends on SMP && SCHED_MC help Book scheduler support improves the CPU scheduler's decision making when dealing with machines that have several books. @@ -208,7 +218,7 @@ config MATHEMU depends on MARCH_G5 help This option is required for IEEE compliant floating point arithmetic - on older S/390 machines. Say Y unless you know your machine doesn't + on older ESA/390 machines. Say Y unless you know your machine doesn't need this. config COMPAT @@ -237,8 +247,8 @@ config S390_EXEC_PROTECT space programs and it also selects the addressing mode option above. The kernel parameter noexec=on will enable this feature and also switch the addressing modes, default is disabled. Enabling this (via - kernel parameter) on machines earlier than IBM System z9-109 EC/BC - will reduce system performance. + kernel parameter) on machines earlier than IBM System z9 this will + reduce system performance. comment "Code generation options" @@ -247,49 +257,46 @@ choice default MARCH_G5 config MARCH_G5 - bool "S/390 model G5 and G6" + bool "System/390 model G5 and G6" depends on !64BIT help Select this to build a 31 bit kernel that works - on all S/390 and zSeries machines. + on all ESA/390 and z/Architecture machines. config MARCH_Z900 - bool "IBM eServer zSeries model z800 and z900" + bool "IBM zSeries model z800 and z900" help - Select this to optimize for zSeries machines. This - will enable some optimizations that are not available - on older 31 bit only CPUs. + Select this to enable optimizations for model z800/z900 (2064 and + 2066 series). This will enable some optimizations that are not + available on older ESA/390 (31 Bit) only CPUs. config MARCH_Z990 - bool "IBM eServer zSeries model z890 and z990" + bool "IBM zSeries model z890 and z990" help - Select this enable optimizations for model z890/z990. - This will be slightly faster but does not work on - older machines such as the z900. + Select this to enable optimizations for model z890/z990 (2084 and + 2086 series). The kernel will be slightly faster but will not work + on older machines. config MARCH_Z9_109 bool "IBM System z9" help - Select this to enable optimizations for IBM System z9-109, IBM - System z9 Enterprise Class (z9 EC), and IBM System z9 Business - Class (z9 BC). The kernel will be slightly faster but will not - work on older machines such as the z990, z890, z900, and z800. + Select this to enable optimizations for IBM System z9 (2094 and + 2096 series). The kernel will be slightly faster but will not work + on older machines. config MARCH_Z10 bool "IBM System z10" help - Select this to enable optimizations for IBM System z10. The - kernel will be slightly faster but will not work on older - machines such as the z990, z890, z900, z800, z9-109, z9-ec - and z9-bc. + Select this to enable optimizations for IBM System z10 (2097 and + 2098 series). The kernel will be slightly faster but will not work + on older machines. config MARCH_Z196 bool "IBM zEnterprise 196" help - Select this to enable optimizations for IBM zEnterprise 196. - The kernel will be slightly faster but will not work on older - machines such as the z990, z890, z900, z800, z9-109, z9-ec, - z9-bc, z10-ec and z10-bc. + Select this to enable optimizations for IBM zEnterprise 196 + (2817 series). The kernel will be slightly faster but will not work + on older machines. endchoice diff --git a/arch/s390/hypfs/hypfs_diag.c b/arch/s390/hypfs/hypfs_diag.c index 020e51c063d2..cd4a81be9cf8 100644 --- a/arch/s390/hypfs/hypfs_diag.c +++ b/arch/s390/hypfs/hypfs_diag.c @@ -638,18 +638,21 @@ __init int hypfs_diag_init(void) pr_err("The hardware system does not support hypfs\n"); return -ENODATA; } - rc = diag224_get_name_table(); - if (rc) { - diag204_free_buffer(); - pr_err("The hardware system does not provide all " - "functions required by hypfs\n"); - } if (diag204_info_type == INFO_EXT) { rc = hypfs_dbfs_init(); if (rc) - diag204_free_buffer(); + return rc; } - return rc; + if (MACHINE_IS_LPAR) { + rc = diag224_get_name_table(); + if (rc) { + pr_err("The hardware system does not provide all " + "functions required by hypfs\n"); + debugfs_remove(dbfs_d204_file); + return rc; + } + } + return 0; } void hypfs_diag_exit(void) diff --git a/arch/s390/hypfs/inode.c b/arch/s390/hypfs/inode.c index 74d98670be27..47cc446dab8f 100644 --- a/arch/s390/hypfs/inode.c +++ b/arch/s390/hypfs/inode.c @@ -316,10 +316,10 @@ static int hypfs_fill_super(struct super_block *sb, void *data, int silent) return 0; } -static int hypfs_get_super(struct file_system_type *fst, int flags, - const char *devname, void *data, struct vfsmount *mnt) +static struct dentry *hypfs_mount(struct file_system_type *fst, int flags, + const char *devname, void *data) { - return get_sb_single(fst, flags, data, hypfs_fill_super, mnt); + return mount_single(fst, flags, data, hypfs_fill_super); } static void hypfs_kill_super(struct super_block *sb) @@ -455,7 +455,7 @@ static const struct file_operations hypfs_file_ops = { static struct file_system_type hypfs_type = { .owner = THIS_MODULE, .name = "s390_hypfs", - .get_sb = hypfs_get_super, + .mount = hypfs_mount, .kill_sb = hypfs_kill_super }; diff --git a/arch/s390/include/asm/dasd.h b/arch/s390/include/asm/dasd.h index 218bce81ec70..b604a9186f8e 100644 --- a/arch/s390/include/asm/dasd.h +++ b/arch/s390/include/asm/dasd.h @@ -217,6 +217,25 @@ typedef struct dasd_symmio_parms { int rssd_result_len; } __attribute__ ((packed)) dasd_symmio_parms_t; +/* + * Data returned by Sense Path Group ID (SNID) + */ +struct dasd_snid_data { + struct { + __u8 group:2; + __u8 reserve:2; + __u8 mode:1; + __u8 res:3; + } __attribute__ ((packed)) path_state; + __u8 pgid[11]; +} __attribute__ ((packed)); + +struct dasd_snid_ioctl_data { + struct dasd_snid_data data; + __u8 path_mask; +} __attribute__ ((packed)); + + /******************************************************************************** * SECTION: Definition of IOCTLs * @@ -261,25 +280,10 @@ typedef struct dasd_symmio_parms { /* Set Attributes (cache operations) */ #define BIODASDSATTR _IOW(DASD_IOCTL_LETTER,2,attrib_data_t) +/* Get Sense Path Group ID (SNID) data */ +#define BIODASDSNID _IOWR(DASD_IOCTL_LETTER, 1, struct dasd_snid_ioctl_data) + #define BIODASDSYMMIO _IOWR(DASD_IOCTL_LETTER, 240, dasd_symmio_parms_t) #endif /* DASD_H */ -/* - * Overrides for Emacs so that we follow Linus's tabbing style. - * Emacs will notice this stuff at the end of the file and automatically - * adjust the settings for this buffer only. This must remain at the end - * of the file. - * --------------------------------------------------------------------------- - * Local variables: - * c-indent-level: 4 - * c-brace-imaginary-offset: 0 - * c-brace-offset: -4 - * c-argdecl-indent: 4 - * c-label-offset: -4 - * c-continued-statement-offset: 4 - * c-continued-brace-offset: 0 - * indent-tabs-mode: nil - * tab-width: 8 - * End: - */ diff --git a/arch/s390/kernel/asm-offsets.c b/arch/s390/kernel/asm-offsets.c index f3c1b823c9a8..33982e7ce04d 100644 --- a/arch/s390/kernel/asm-offsets.c +++ b/arch/s390/kernel/asm-offsets.c @@ -66,9 +66,9 @@ int main(void) DEFINE(__VDSO_ECTG_BASE, offsetof(struct vdso_per_cpu_data, ectg_timer_base)); DEFINE(__VDSO_ECTG_USER, offsetof(struct vdso_per_cpu_data, ectg_user_time)); /* constants used by the vdso */ - DEFINE(CLOCK_REALTIME, CLOCK_REALTIME); - DEFINE(CLOCK_MONOTONIC, CLOCK_MONOTONIC); - DEFINE(CLOCK_REALTIME_RES, MONOTONIC_RES_NSEC); + DEFINE(__CLOCK_REALTIME, CLOCK_REALTIME); + DEFINE(__CLOCK_MONOTONIC, CLOCK_MONOTONIC); + DEFINE(__CLOCK_REALTIME_RES, MONOTONIC_RES_NSEC); BLANK(); /* constants for SIGP */ DEFINE(__SIGP_STOP, sigp_stop); diff --git a/arch/s390/kernel/early.c b/arch/s390/kernel/early.c index d149609e46e6..3b7e7dddc324 100644 --- a/arch/s390/kernel/early.c +++ b/arch/s390/kernel/early.c @@ -282,8 +282,6 @@ static noinline __init void setup_facility_list(void) static noinline __init void setup_hpage(void) { #ifndef CONFIG_DEBUG_PAGEALLOC - unsigned int facilities; - if (!test_facility(2) || !test_facility(8)) return; S390_lowcore.machine_flags |= MACHINE_FLAG_HPAGE; diff --git a/arch/s390/kernel/entry.S b/arch/s390/kernel/entry.S index 5efce7202984..1ecc337fb679 100644 --- a/arch/s390/kernel/entry.S +++ b/arch/s390/kernel/entry.S @@ -557,6 +557,7 @@ pgm_svcper: # per was called from kernel, must be kprobes # kernel_per: + REENABLE_IRQS mvi SP_SVCNR(%r15),0xff # set trap indication to pgm check mvi SP_SVCNR+1(%r15),0xff la %r2,SP_PTREGS(%r15) # address of register-save area diff --git a/arch/s390/kernel/entry64.S b/arch/s390/kernel/entry64.S index a2be23922f43..8f3e802174db 100644 --- a/arch/s390/kernel/entry64.S +++ b/arch/s390/kernel/entry64.S @@ -568,6 +568,7 @@ pgm_svcper: # per was called from kernel, must be kprobes # kernel_per: + REENABLE_IRQS xc SP_SVCNR(2,%r15),SP_SVCNR(%r15) # clear svc number la %r2,SP_PTREGS(%r15) # address of register-save area brasl %r14,do_single_step diff --git a/arch/s390/kernel/kprobes.c b/arch/s390/kernel/kprobes.c index 2a3d2bf6f083..d60fc4398516 100644 --- a/arch/s390/kernel/kprobes.c +++ b/arch/s390/kernel/kprobes.c @@ -316,6 +316,8 @@ static int __kprobes kprobe_handler(struct pt_regs *regs) return 1; ss_probe: + if (regs->psw.mask & (PSW_MASK_PER | PSW_MASK_IO)) + local_irq_disable(); prepare_singlestep(p, regs); kcb->kprobe_status = KPROBE_HIT_SS; return 1; @@ -463,6 +465,8 @@ static int __kprobes post_kprobe_handler(struct pt_regs *regs) goto out; } reset_current_kprobe(); + if (regs->psw.mask & (PSW_MASK_PER | PSW_MASK_IO)) + local_irq_enable(); out: preempt_enable_no_resched(); @@ -502,8 +506,11 @@ int __kprobes kprobe_fault_handler(struct pt_regs *regs, int trapnr) regs->psw.mask |= kcb->kprobe_saved_imask; if (kcb->kprobe_status == KPROBE_REENTER) restore_previous_kprobe(kcb); - else + else { reset_current_kprobe(); + if (regs->psw.mask & (PSW_MASK_PER | PSW_MASK_IO)) + local_irq_enable(); + } preempt_enable_no_resched(); break; case KPROBE_HIT_ACTIVE: diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c index e3ceb911dc75..6f6350826c81 100644 --- a/arch/s390/kernel/setup.c +++ b/arch/s390/kernel/setup.c @@ -761,6 +761,9 @@ static void __init setup_hwcaps(void) case 0x2098: strcpy(elf_platform, "z10"); break; + case 0x2817: + strcpy(elf_platform, "z196"); + break; } } diff --git a/arch/s390/kernel/sysinfo.c b/arch/s390/kernel/sysinfo.c index f04d93aa48ec..5c9e439bf3f6 100644 --- a/arch/s390/kernel/sysinfo.c +++ b/arch/s390/kernel/sysinfo.c @@ -106,11 +106,13 @@ static int stsi_15_1_x(struct sysinfo_15_1_x *info, char *page, int len) for (i = 0; i < TOPOLOGY_NR_MAG; i++) len += sprintf(page + len, " %d", info->mag[i]); len += sprintf(page + len, "\n"); +#ifdef CONFIG_SCHED_MC store_topology(info); len += sprintf(page + len, "CPU Topology SW: "); for (i = 0; i < TOPOLOGY_NR_MAG; i++) len += sprintf(page + len, " %d", info->mag[i]); len += sprintf(page + len, "\n"); +#endif return len; } diff --git a/arch/s390/kernel/topology.c b/arch/s390/kernel/topology.c index a9dee9048ee5..94b06c31fc8a 100644 --- a/arch/s390/kernel/topology.c +++ b/arch/s390/kernel/topology.c @@ -53,8 +53,10 @@ static cpumask_t cpu_group_map(struct mask_info *info, unsigned int cpu) cpumask_t mask; cpus_clear(mask); - if (!topology_enabled || !MACHINE_HAS_TOPOLOGY) - return cpu_possible_map; + if (!topology_enabled || !MACHINE_HAS_TOPOLOGY) { + cpumask_copy(&mask, cpumask_of(cpu)); + return mask; + } while (info) { if (cpu_isset(cpu, info->mask)) { mask = info->mask; diff --git a/arch/s390/kernel/vdso32/clock_getres.S b/arch/s390/kernel/vdso32/clock_getres.S index 9532c4e6a9d2..36aaa25d05da 100644 --- a/arch/s390/kernel/vdso32/clock_getres.S +++ b/arch/s390/kernel/vdso32/clock_getres.S @@ -19,9 +19,9 @@ .type __kernel_clock_getres,@function __kernel_clock_getres: .cfi_startproc - chi %r2,CLOCK_REALTIME + chi %r2,__CLOCK_REALTIME je 0f - chi %r2,CLOCK_MONOTONIC + chi %r2,__CLOCK_MONOTONIC jne 3f 0: ltr %r3,%r3 jz 2f /* res == NULL */ @@ -34,6 +34,6 @@ __kernel_clock_getres: 3: lhi %r1,__NR_clock_getres /* fallback to svc */ svc 0 br %r14 -4: .long CLOCK_REALTIME_RES +4: .long __CLOCK_REALTIME_RES .cfi_endproc .size __kernel_clock_getres,.-__kernel_clock_getres diff --git a/arch/s390/kernel/vdso32/clock_gettime.S b/arch/s390/kernel/vdso32/clock_gettime.S index 969643954273..b2224e0b974c 100644 --- a/arch/s390/kernel/vdso32/clock_gettime.S +++ b/arch/s390/kernel/vdso32/clock_gettime.S @@ -21,9 +21,9 @@ __kernel_clock_gettime: .cfi_startproc basr %r5,0 0: al %r5,21f-0b(%r5) /* get &_vdso_data */ - chi %r2,CLOCK_REALTIME + chi %r2,__CLOCK_REALTIME je 10f - chi %r2,CLOCK_MONOTONIC + chi %r2,__CLOCK_MONOTONIC jne 19f /* CLOCK_MONOTONIC */ diff --git a/arch/s390/kernel/vdso64/clock_getres.S b/arch/s390/kernel/vdso64/clock_getres.S index 9ce8caafdb4e..176e1f75f9aa 100644 --- a/arch/s390/kernel/vdso64/clock_getres.S +++ b/arch/s390/kernel/vdso64/clock_getres.S @@ -19,9 +19,9 @@ .type __kernel_clock_getres,@function __kernel_clock_getres: .cfi_startproc - cghi %r2,CLOCK_REALTIME + cghi %r2,__CLOCK_REALTIME je 0f - cghi %r2,CLOCK_MONOTONIC + cghi %r2,__CLOCK_MONOTONIC je 0f cghi %r2,-2 /* CLOCK_THREAD_CPUTIME_ID for this thread */ jne 2f @@ -39,6 +39,6 @@ __kernel_clock_getres: 2: lghi %r1,__NR_clock_getres /* fallback to svc */ svc 0 br %r14 -3: .quad CLOCK_REALTIME_RES +3: .quad __CLOCK_REALTIME_RES .cfi_endproc .size __kernel_clock_getres,.-__kernel_clock_getres diff --git a/arch/s390/kernel/vdso64/clock_gettime.S b/arch/s390/kernel/vdso64/clock_gettime.S index f40467884a03..d46c95ed5f19 100644 --- a/arch/s390/kernel/vdso64/clock_gettime.S +++ b/arch/s390/kernel/vdso64/clock_gettime.S @@ -20,11 +20,11 @@ __kernel_clock_gettime: .cfi_startproc larl %r5,_vdso_data - cghi %r2,CLOCK_REALTIME + cghi %r2,__CLOCK_REALTIME je 4f cghi %r2,-2 /* CLOCK_THREAD_CPUTIME_ID for this thread */ je 9f - cghi %r2,CLOCK_MONOTONIC + cghi %r2,__CLOCK_MONOTONIC jne 12f /* CLOCK_MONOTONIC */ diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig index a9aaed3c3d97..45d9c87d083a 100644 --- a/arch/sparc/Kconfig +++ b/arch/sparc/Kconfig @@ -22,8 +22,6 @@ config SPARC select RTC_CLASS select RTC_DRV_M48T59 select HAVE_IRQ_WORK - select HAVE_PERF_EVENTS - select PERF_USE_VMALLOC select HAVE_DMA_ATTRS select HAVE_DMA_API_DEBUG select HAVE_ARCH_JUMP_LABEL @@ -50,7 +48,6 @@ config SPARC64 select RTC_DRV_BQ4802 select RTC_DRV_SUN4V select RTC_DRV_STARFIRE - select HAVE_IRQ_WORK select HAVE_PERF_EVENTS select PERF_USE_VMALLOC diff --git a/arch/sparc/include/asm/jump_label.h b/arch/sparc/include/asm/jump_label.h index 62e66d7b2fb6..65c0d3029796 100644 --- a/arch/sparc/include/asm/jump_label.h +++ b/arch/sparc/include/asm/jump_label.h @@ -4,7 +4,6 @@ #ifdef __KERNEL__ #include <linux/types.h> -#include <asm/system.h> #define JUMP_LABEL_NOP_SIZE 4 diff --git a/arch/sparc/kernel/irq_32.c b/arch/sparc/kernel/irq_32.c index 0116d8d10def..5ad6e5c5dbb3 100644 --- a/arch/sparc/kernel/irq_32.c +++ b/arch/sparc/kernel/irq_32.c @@ -365,7 +365,7 @@ static int request_fast_irq(unsigned int irq, unsigned long flags; unsigned int cpu_irq; int ret; -#ifdef CONFIG_SMP +#if defined CONFIG_SMP && !defined CONFIG_SPARC_LEON struct tt_entry *trap_table; extern struct tt_entry trapbase_cpu1, trapbase_cpu2, trapbase_cpu3; #endif @@ -425,7 +425,7 @@ static int request_fast_irq(unsigned int irq, table[SP_TRAP_IRQ1+(cpu_irq-1)].inst_four = SPARC_NOP; INSTANTIATE(sparc_ttable) -#ifdef CONFIG_SMP +#if defined CONFIG_SMP && !defined CONFIG_SPARC_LEON trap_table = &trapbase_cpu1; INSTANTIATE(trap_table) trap_table = &trapbase_cpu2; INSTANTIATE(trap_table) trap_table = &trapbase_cpu3; INSTANTIATE(trap_table) diff --git a/arch/sparc/kernel/leon_smp.c b/arch/sparc/kernel/leon_smp.c index e1656fc41ccb..7524689b03d2 100644 --- a/arch/sparc/kernel/leon_smp.c +++ b/arch/sparc/kernel/leon_smp.c @@ -56,8 +56,8 @@ void __init leon_configure_cache_smp(void); static inline unsigned long do_swap(volatile unsigned long *ptr, unsigned long val) { - __asm__ __volatile__("swapa [%1] %2, %0\n\t" : "=&r"(val) - : "r"(ptr), "i"(ASI_LEON_DCACHE_MISS) + __asm__ __volatile__("swapa [%2] %3, %0\n\t" : "=&r"(val) + : "0"(val), "r"(ptr), "i"(ASI_LEON_DCACHE_MISS) : "memory"); return val; } diff --git a/arch/sparc/kernel/rtrap_32.S b/arch/sparc/kernel/rtrap_32.S index 4da2e1f66290..5f5f74c2c2ca 100644 --- a/arch/sparc/kernel/rtrap_32.S +++ b/arch/sparc/kernel/rtrap_32.S @@ -78,9 +78,9 @@ signal_p: call do_notify_resume add %sp, STACKFRAME_SZ, %o0 ! pt_regs ptr - /* Fall through. */ - ld [%sp + STACKFRAME_SZ + PT_PSR], %t_psr - clr %l6 + b signal_p + ld [%curptr + TI_FLAGS], %g2 + ret_trap_continue: sethi %hi(PSR_SYSCALL), %g1 andn %t_psr, %g1, %t_psr diff --git a/arch/sparc/kernel/rtrap_64.S b/arch/sparc/kernel/rtrap_64.S index 090b9e9ad5e3..77f1b95e0806 100644 --- a/arch/sparc/kernel/rtrap_64.S +++ b/arch/sparc/kernel/rtrap_64.S @@ -34,37 +34,9 @@ __handle_preemption: __handle_user_windows: call fault_in_user_windows wrpr %g0, RTRAP_PSTATE, %pstate - wrpr %g0, RTRAP_PSTATE_IRQOFF, %pstate - /* Redo sched+sig checks */ - ldx [%g6 + TI_FLAGS], %l0 - andcc %l0, _TIF_NEED_RESCHED, %g0 - - be,pt %xcc, 1f - nop - call schedule - wrpr %g0, RTRAP_PSTATE, %pstate - wrpr %g0, RTRAP_PSTATE_IRQOFF, %pstate - ldx [%g6 + TI_FLAGS], %l0 - -1: andcc %l0, _TIF_DO_NOTIFY_RESUME_MASK, %g0 - be,pt %xcc, __handle_user_windows_continue - nop - mov %l5, %o1 - add %sp, PTREGS_OFF, %o0 - mov %l0, %o2 - - call do_notify_resume - wrpr %g0, RTRAP_PSTATE, %pstate - wrpr %g0, RTRAP_PSTATE_IRQOFF, %pstate - /* Signal delivery can modify pt_regs tstate, so we must - * reload it. - */ - ldx [%sp + PTREGS_OFF + PT_V9_TSTATE], %l1 - sethi %hi(0xf << 20), %l4 - and %l1, %l4, %l4 - ba,pt %xcc, __handle_user_windows_continue + ba,pt %xcc, __handle_preemption_continue + wrpr %g0, RTRAP_PSTATE_IRQOFF, %pstate - andn %l1, %l4, %l1 __handle_userfpu: rd %fprs, %l5 andcc %l5, FPRS_FEF, %g0 @@ -87,7 +59,7 @@ __handle_signal: ldx [%sp + PTREGS_OFF + PT_V9_TSTATE], %l1 sethi %hi(0xf << 20), %l4 and %l1, %l4, %l4 - ba,pt %xcc, __handle_signal_continue + ba,pt %xcc, __handle_preemption_continue andn %l1, %l4, %l1 /* When returning from a NMI (%pil==15) interrupt we want to @@ -177,11 +149,9 @@ __handle_preemption_continue: bne,pn %xcc, __handle_preemption andcc %l0, _TIF_DO_NOTIFY_RESUME_MASK, %g0 bne,pn %xcc, __handle_signal -__handle_signal_continue: ldub [%g6 + TI_WSAVED], %o2 brnz,pn %o2, __handle_user_windows nop -__handle_user_windows_continue: sethi %hi(TSTATE_PEF), %o0 andcc %l1, %o0, %g0 diff --git a/arch/sparc/mm/fault_32.c b/arch/sparc/mm/fault_32.c index bd8601601afa..5b836f5aea90 100644 --- a/arch/sparc/mm/fault_32.c +++ b/arch/sparc/mm/fault_32.c @@ -539,6 +539,12 @@ do_sigbus: __do_fault_siginfo(BUS_ADRERR, SIGBUS, tsk->thread.kregs, address); } +static void check_stack_aligned(unsigned long sp) +{ + if (sp & 0x7UL) + force_sig(SIGILL, current); +} + void window_overflow_fault(void) { unsigned long sp; @@ -547,6 +553,8 @@ void window_overflow_fault(void) if(((sp + 0x38) & PAGE_MASK) != (sp & PAGE_MASK)) force_user_fault(sp + 0x38, 1); force_user_fault(sp, 1); + + check_stack_aligned(sp); } void window_underflow_fault(unsigned long sp) @@ -554,6 +562,8 @@ void window_underflow_fault(unsigned long sp) if(((sp + 0x38) & PAGE_MASK) != (sp & PAGE_MASK)) force_user_fault(sp + 0x38, 0); force_user_fault(sp, 0); + + check_stack_aligned(sp); } void window_ret_fault(struct pt_regs *regs) @@ -564,4 +574,6 @@ void window_ret_fault(struct pt_regs *regs) if(((sp + 0x38) & PAGE_MASK) != (sp & PAGE_MASK)) force_user_fault(sp + 0x38, 0); force_user_fault(sp, 0); + + check_stack_aligned(sp); } |