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2011-06-03Blackfin: strncpy: fix handling of zero lengthsSteven Miao
The jump to 4f will cause the NUL padding loop to run at least one time, so if string length is zero just jump to the end. Otherwise we wrongly write one NUL byte when size==0. Signed-off-by: Steven Miao <realmz6@gmail.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-05-28Blackfin: debug-mmrs: include RSI_PID[4567] MMRsMike Frysinger
The documentation is a little iffy as to whether these are actual MMRs, but reading them on the hardware works, and the previous version of this logic (the SDH) had PID[4567]. So add it for RSI too. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-05-28Blackfin: bf51x: fix up RSI_PID# MMR definesMike Frysinger
Looks like the copying of MMR defines from the SDH block missed updating the addresses of the RSI_PID# registers. So tweak them to reflect the actual hardware. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-05-28Blackfin: bf52x/bf54x: fix up usb MMR definesMike Frysinger
The bf52x/bf54x have the incorrect addresses for USB_EP_NI7_RXINTERVAL and USB_EP_NI7_TXCOUNT, so adjust those. Further, the bf54x header puts the USB defines in the wrong place, so shuffle them back to the right grouping. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-05-28Blackfin: debug-mmrs: fix typos with gptimers/mdma/ppiMike Frysinger
This code was mostly developed against a BF54x, so some BF537-specific issues were missed. The PPI block starts at PPI_CONTROL, not PPI_STATUS (which is the reverse of the EPPI block). The MDMA block starts at MDMA_NEXT_DESC_PTR, not MDMA_CONFIG. Seems the sim does not catch misreads here so that'll need to get fixed. The gptimer block is mostly 32bit regs, not 16bit. Use the gptimer struct to figure that out rather than hardcoding it locally. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-05-28Blackfin: gptimers: add structure for hardware register layoutMike Frysinger
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-05-28Blackfin: wire up new sendmmsg syscallMike Frysinger
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-05-28Blackfin: mach/bfin_serial_5xx.h: punt now-unused headerMike Frysinger
Now that the serial code has been unified in bfin_serial.h, and the Blackfin UART driver pushed its resources to the boards files, we don't need these headers anymore. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-05-28Blackfin: bfin_serial.h: turn default port wrappers into stubsMike Frysinger
Any consumer that needs to access the MMRs has to provide these helpers, so make the default into useless stubs. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-05-28Merge branch 'perf-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (25 commits) perf: Fix SIGIO handling perf top: Don't stop if no kernel symtab is found perf top: Handle kptr_restrict perf top: Remove unused macro perf events: initialize fd array to -1 instead of 0 perf tools: Make sure kptr_restrict warnings fit 80 col terms perf tools: Fix build on older systems perf symbols: Handle /proc/sys/kernel/kptr_restrict perf: Remove duplicate headers ftrace: Add internal recursive checks tracing: Update btrfs's tracepoints to use u64 interface tracing: Add __print_symbolic_u64 to avoid warnings on 32bit machine ftrace: Set ops->flag to enabled even on static function tracing tracing: Have event with function tracer check error return ftrace: Have ftrace_startup() return failure code jump_label: Check entries limit in __jump_label_update ftrace/recordmcount: Avoid STT_FUNC symbols as base on ARM scripts/tags.sh: Add magic for trace-events for etags too scripts/tags.sh: Fix ctags for DEFINE_EVENT() x86/ftrace: Fix compiler warning in ftrace.c ...
2011-05-28Merge branch 'setns'Linus Torvalds
* setns: ns: Wire up the setns system call Done as a merge to make it easier to fix up conflicts in arm due to addition of sendmmsg system call
2011-05-28ns: Wire up the setns system callEric W. Biederman
32bit and 64bit on x86 are tested and working. The rest I have looked at closely and I can't find any problems. setns is an easy system call to wire up. It just takes two ints so I don't expect any weird architecture porting problems. While doing this I have noticed that we have some architectures that are very slow to get new system calls. cris seems to be the slowest where the last system calls wired up were preadv and pwritev. avr32 is weird in that recvmmsg was wired up but never declared in unistd.h. frv is behind with perf_event_open being the last syscall wired up. On h8300 the last system call wired up was epoll_wait. On m32r the last system call wired up was fallocate. mn10300 has recvmmsg as the last system call wired up. The rest seem to at least have syncfs wired up which was new in the 2.6.39. v2: Most of the architecture support added by Daniel Lezcano <dlezcano@fr.ibm.com> v3: ported to v2.6.36-rc4 by: Eric W. Biederman <ebiederm@xmission.com> v4: Moved wiring up of the system call to another patch v5: ported to v2.6.39-rc6 v6: rebased onto parisc-next and net-next to avoid syscall conflicts. v7: ported to Linus's latest post 2.6.39 tree. >  arch/blackfin/include/asm/unistd.h     |    3 ++- >  arch/blackfin/mach-common/entry.S      |    1 + Acked-by: Mike Frysinger <vapier@gentoo.org> Oh - ia64 wiring looks good. Acked-by: Tony Luck <tony.luck@intel.com> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-05-27Merge git://git.infradead.org/mtd-2.6Linus Torvalds
* git://git.infradead.org/mtd-2.6: (97 commits) mtd: kill CONFIG_MTD_PARTITIONS mtd: remove add_mtd_partitions, add_mtd_device and friends mtd: convert remaining users to mtd_device_register() mtd: samsung onenand: convert to mtd_device_register() mtd: omap2 onenand: convert to mtd_device_register() mtd: txx9ndfmc: convert to mtd_device_register() mtd: tmio_nand: convert to mtd_device_register() mtd: socrates_nand: convert to mtd_device_register() mtd: sharpsl: convert to mtd_device_register() mtd: s3c2410 nand: convert to mtd_device_register() mtd: ppchameleonevb: convert to mtd_device_register() mtd: orion_nand: convert to mtd_device_register() mtd: omap2: convert to mtd_device_register() mtd: nomadik_nand: convert to mtd_device_register() mtd: ndfc: convert to mtd_device_register() mtd: mxc_nand: convert to mtd_device_register() mtd: mpc5121_nfc: convert to mtd_device_register() mtd: jz4740_nand: convert to mtd_device_register() mtd: h1910: convert to mtd_device_register() mtd: fsmc_nand: convert to mtd_device_register() ... Fixed up trivial conflicts in - drivers/mtd/maps/integrator-flash.c: removed in ARM tree - drivers/mtd/maps/physmap.c: addition of afs partition probe type clashing with removal of CONFIG_MTD_PARTITIONS
2011-05-27Merge branch 'tip/perf/urgent' of ↵Ingo Molnar
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-trace into perf/urgent
2011-05-26arch: remove CONFIG_GENERIC_FIND_{NEXT_BIT,BIT_LE,LAST_BIT}Akinobu Mita
By the previous style change, CONFIG_GENERIC_FIND_NEXT_BIT, CONFIG_GENERIC_FIND_BIT_LE, and CONFIG_GENERIC_FIND_LAST_BIT are not used to test for existence of find bitops anymore. Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Acked-by: Greg Ungerer <gerg@uclinux.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Russell King <linux@arm.linux.org.uk> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-05-26kgdbts: unify/generalize gdb breakpoint adjustmentMike Frysinger
The Blackfin arch, like the x86 arch, needs to adjust the PC manually after a breakpoint is hit as normally this is handled by the remote gdb. However, rather than starting another arch ifdef mess, create a common GDB_ADJUSTS_BREAK_OFFSET define for any arch to opt-in via their kgdb.h. Signed-off-by: Mike Frysinger <vapier@gentoo.org> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Jason Wessel <jason.wessel@windriver.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Acked-by: Paul Mundt <lethal@linux-sh.org> Acked-by: Dongdong Deng <dongdong.deng@windriver.com> Cc: Sergei Shtylyov <sshtylyov@mvista.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-05-26Blackfin: convert to asm-generic ptrace.hMike Frysinger
Signed-off-by: Mike Frysinger <vapier@gentoo.org> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Jason Wessel <jason.wessel@windriver.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Sergei Shtylyov <sshtylyov@mvista.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-05-25maccess,probe_kernel: Make write/read src const void *Steven Rostedt
The functions probe_kernel_write() and probe_kernel_read() do not modify the src pointer. Allow const pointers to be passed in without the need of a typecast. Acked-by: Mike Frysinger <vapier@gentoo.org> Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com> Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/r/1305824936.1465.4.camel@gandalf.stny.rr.com
2011-05-25Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/vapier/blackfin * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/vapier/blackfin: (37 commits) Blackfin: use new common PERCPU_INPUT define MAINTAINERS: Fix Analog Devices mailinglist address Blackfin: boards: update ASoC resources after machine driver overhaul Blackfin: work around anomaly 05000480 Blackfin: fix addr type with bfin_write_{or,and} helpers Blackfin: convert /proc/sram to seq_file Blackfin: switch /proc/gpio to seq_file Blackfin: fix indentation with bfin_read() helper Blackfin: convert old cpumask API to new one Blackfin: don't touch task->cpus_allowed directly Blackfin: don't touch cpu_possible_map and cpu_present_map directly Blackfin: bf548-ezkit/bf561-ezkit: update nor flash layout Blackfin: initial perf_event support Blackfin: update anomaly lists to latest public info Blackfin: use on-chip reset func with newer parts Blackfin: bf533-stamp/bf537-stamp: drop ad1980 from defconfigs Blackfin: optimize MMR reads during startup a bit Blackfin: bf537: demux port H mask A and emac rx ints Blackfin: bf537: fix excessive gpio int demuxing Blackfin: bf54x: drop unused pm gpio handling ...
2011-05-25lib: consolidate DEBUG_STACK_USAGE optionStephen Boyd
Most arches define CONFIG_DEBUG_STACK_USAGE exactly the same way. Move it to lib/Kconfig.debug so each arch doesn't have to define it. This obviously makes the option generic, but that's fine because the config is already used in generic code. It's not obvious to me that sysrq-P actually does anything caution by keeping the most inclusive wording. Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Cc: Chris Metcalf <cmetcalf@tilera.com> Acked-by: David S. Miller <davem@davemloft.net> Acked-by: Richard Weinberger <richard@nod.at> Acked-by: Mike Frysinger <vapier@gentoo.org> Cc: Russell King <rmk@arm.linux.org.uk> Cc: Hirokazu Takata <takata@linux-m32r.org> Acked-by: Ralf Baechle <ralf@linux-mips.org> Cc: Paul Mackerras <paulus@samba.org> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Chen Liqin <liqin.chen@sunplusct.com> Cc: Lennox Wu <lennox.wu@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-05-25Blackfin: use new common PERCPU_INPUT defineMike Frysinger
The Blackfin percpu input sections are outdated, so rather than update them, drop them completely and use the new common define. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-05-25Blackfin: boards: update ASoC resources after machine driver overhaulScott Jiang
Now that the Blackfin machine drivers have been updated to the multicomponent support, update the resources to match. The pin settings are now a board issue and removed from the driver. Signed-off-by: Scott Jiang <scott.jiang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-05-25Blackfin: work around anomaly 05000480Steven Miao
Anomaly 05000480 on BF537 rev 0.0, 0.1, 0.2: Multiple Simultaneous Urgent DMA Requests May Cause DMA System Instability Suggested Workaround: Program the DMA Traffic Control Period to a non-zero value. This forces the DMA block to group accesses together rather than allow arbitration for each piece of data placed on the internal DMA bus. Signed-off-by: Steven Miao <realmz6@gmail.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-05-25Blackfin: fix addr type with bfin_write_{or,and} helpersMike Frysinger
Since the bfin_write() func needs proper type information in order to expand into the right bfin_writeX() variant, preserve the addr's type when setting up the local __addr. Otherwise the helpers will detect the variant based upon sizeof(void) which is almost never right. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-05-25Blackfin: convert /proc/sram to seq_fileAlexey Dobriyan
->read_proc interface is going away, switch to seq_file. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-05-25Blackfin: switch /proc/gpio to seq_fileAlexey Dobriyan
->read_proc interface is going away, switch to seq_file. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-05-25Blackfin: fix indentation with bfin_read() helperMike Frysinger
Use tabs instead of spaces to indent. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-05-25Blackfin: convert old cpumask API to new oneKOSAKI Motohiro
old cpu_xxx() APIs is planned to removed later. then, converted. Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-05-25Blackfin: don't touch task->cpus_allowed directlyKOSAKI Motohiro
Every callter (except kthread_bind) should use proper set_cpus_allowed_ptr() APIs. Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-05-25Blackfin: don't touch cpu_possible_map and cpu_present_map directlyKOSAKI Motohiro
We plan to remove cpu_possible_map and cpu_present_map later and we have proper init_cpu_possible() and init_cpu_present() APIs. Therefore this patch rewrites platform_init_cpus and platform_prepare_cpus by their APIs. Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-05-25Blackfin: bf548-ezkit/bf561-ezkit: update nor flash layoutMike Frysinger
Both the BF548-EZKIT and the BF561-EZKIT use top boot flashes, so now that Das U-Boot uses the last small sector for its environment, update their nor layout in the kernel accordingly. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-05-25Blackfin: initial perf_event supportMike Frysinger
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-05-25Blackfin: update anomaly lists to latest public infoMike Frysinger
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-05-25Blackfin: use on-chip reset func with newer partsMike Frysinger
Turns out the documentation is wrong and doing "RAISE 1" does not result in a software reset, only a core reset. So when the on-chip rom has a functioning reset helper, use it. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-05-25Blackfin: bf533-stamp/bf537-stamp: drop ad1980 from defconfigsMike Frysinger
These boards don't have AD1980 modules, and that device is deprecated, so don't bother building it up by default anymore. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-05-25Blackfin: optimize MMR reads during startup a bitMike Frysinger
Since the value of these MMRs aren't changing, store the value in a local variable and work off of that. This avoids multiple MMR reads which are implicitly forced by the volatile markings. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-05-25Blackfin: bf537: demux port H mask A and emac rx intsMike Frysinger
The BF537 SIC combines the gpio port H mask A interrupts with the emac rx interrupt, so we need to demux this in software. It also combines the gpio port H mask B and the emac tx interrupts, and the watchdog and port F mask B interrupts, but since we don't support mask B yet, just add the defines for now. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-05-25Blackfin: bf537: fix excessive gpio int demuxingMike Frysinger
The search logic in the gpio demux walks all possible gpio blocks starting at the specified pin. The trouble on bf537 parts when we demux the port F and port G mask A interrupts is that we also demux port H mask A ints. Most of the time this isn't an issue as people don't usually use port H, but might as well avoid it when possible. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-05-25Blackfin: bf54x: drop unused pm gpio handlingMike Frysinger
This functionality was merged into the common bfin_pm_standby_ctrl func some time ago, so punt these now unused funcs and data, and localize the wake funcs that aren't needed externally anymore. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-05-25Blackfin: move bf537-specific irq code out of common codeMike Frysinger
The SIC interrupt line muxing that the bf537 does is specific to this CPU (thankfully), so rip it out of the common code and move it to a bf537-specific file. This tidies up the common code significantly. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-05-25Blackfin: move internal irq prototypes out of global namespaceMike Frysinger
These are only used in a few internal Blackfin places, so move the irq prototypes out of the global header and into the internal irq one. No functional changes other than shuffling locales. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-05-25Blackfin: clean up irq ifdef logic a bitMike Frysinger
Prefer MMR named checks over part-specific lists, condense duplicated code across different #ifdef branches, simplify CONFIG_PM ifdefs, and drop unused kgdb header. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-05-25Blackfin: bf51x/bf52x: fix typo in hysteresis MMR namesMike Frysinger
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-05-25Blackfin: delete duplicated user single step prototypesMike Frysinger
These are in linux/ptrace.h, so no need for us to duplicate them. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-05-25Blackfin: kgdb: cache flushing is not safe in SMP modeSonic Zhang
Make sure we mark cache flushing as unsafe to kgdb in SMP mode so that kgdb doesn't flush things incorrectly on us. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-05-25Blackfin: SMP: drop unused blackfin_cpudata.idle pointerMike Frysinger
Not sure when we stopped using this field, but nothing in the tree uses this now, so punt it. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-05-25Blackfin: SMP: fix cpudata cache setupMike Frysinger
After some cache setup reordering changesets, the blackfin_cpudata init was left behind. While cpu0's data was correct, cpu1's data was not. Not that big of a deal as these are only used in the cpuinfo output, but should still be fixed. So move the setup of these fields to the common cache setup function to avoid this happening again in the future. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-05-25Blackfin: clean up /proc/cpuinfo outputMike Frysinger
The smp flush lines are too long and have too many newlines, so scale them back to match the other lines. The %p modifier shows "(null)" for 0, so use %08x instead. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-05-25Blackfin: bf527-ezkit: tweak sound defconfigMike Frysinger
Build the sound pieces that the board actually has into the kernel, and punt older devices that we discourage. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-05-25Blackfin: bf533/bf537/bf561: convert to BFIN_IRQ helperMike Frysinger
This brings the parts in line with newer ones, and makes things easier to read at a glance. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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