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2012-05-23Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal Pull first series of signal handling cleanups from Al Viro: "This is just the first part of the queue (about a half of it); assorted fixes all over the place in signal handling. This one ends with all sigsuspend() implementations switched to generic one (->saved_sigmask-based). With this, a bunch of assorted old buglets are fixed and most of the missing bits of NOTIFY_RESUME hookup are in place. Two more fixes sit in arm and um trees respectively, and there's a couple of broken ones that need obvious fixes - parisc and avr32 check TIF_NOTIFY_RESUME only on one of two codepaths; fixes for that will happen in the next series" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal: (55 commits) unicore32: if there's no handler we need to restore sigmask, syscall or no syscall xtensa: add handling of TIF_NOTIFY_RESUME microblaze: drop 'oldset' argument of do_notify_resume() microblaze: handle TIF_NOTIFY_RESUME score: add handling of NOTIFY_RESUME to do_notify_resume() m68k: add TIF_NOTIFY_RESUME and handle it. sparc: kill ancient comment in sparc_sigaction() h8300: missing checks of __get_user()/__put_user() return values frv: missing checks of __get_user()/__put_user() return values cris: missing checks of __get_user()/__put_user() return values powerpc: missing checks of __get_user()/__put_user() return values sh: missing checks of __get_user()/__put_user() return values sparc: missing checks of __get_user()/__put_user() return values avr32: struct old_sigaction is never used m32r: struct old_sigaction is never used xtensa: xtensa_sigaction doesn't exist alpha: tidy signal delivery up score: don't open-code force_sigsegv() cris: don't open-code force_sigsegv() blackfin: don't open-code force_sigsegv() ...
2012-05-23Merge branch 'x86-fpu-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull fpu state cleanups from Ingo Molnar: "This tree streamlines further aspects of FPU handling by eliminating the prepare_to_copy() complication and moving that logic to arch_dup_task_struct(). It also fixes the FPU dumps in threaded core dumps, removes and old (and now invalid) assumption plus micro-optimizes the exit path by avoiding an FPU save for dead tasks." Fixed up trivial add-add conflict in arch/sh/kernel/process.c that came in because we now do the FPU handling in arch_dup_task_struct() rather than the legacy (and now gone) prepare_to_copy(). * 'x86-fpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86, fpu: drop the fpu state during thread exit x86, xsave: remove thread_has_fpu() bug check in __sanitize_i387_state() coredump: ensure the fpu state is flushed for proper multi-threaded core dump fork: move the real prepare_to_copy() users to arch_dup_task_struct()
2012-05-22Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial Pull trivial updates from Jiri Kosina: "As usual, it's mostly typo fixes, redundant code elimination and some documentation updates." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (57 commits) edac, mips: don't change code that has been removed in edac/mips tree xtensa: Change mail addresses of Hannes Weiner and Oskar Schirmer lib: Change mail address of Oskar Schirmer net: Change mail address of Oskar Schirmer arm/m68k: Change mail address of Sebastian Hess i2c: Change mail address of Oskar Schirmer net: Fix tcp_build_and_update_options comment in struct tcp_sock atomic64_32.h: fix parameter naming mismatch Kconfig: replace "--- help ---" with "---help---" c2port: fix bogus Kconfig "default no" edac: Fix spelling errors. qla1280: Remove redundant NULL check before release_firmware() call remoteproc: remove redundant NULL check before release_firmware() qla2xxx: Remove redundant NULL check before release_firmware() call. aic94xx: Get rid of redundant NULL check before release_firmware() call tehuti: delete redundant NULL check before release_firmware() qlogic: get rid of a redundant test for NULL before call to release_firmware() bna: remove redundant NULL test before release_firmware() tg3: remove redundant NULL test before release_firmware() call typhoon: get rid of redundant conditional before all to release_firmware() ...
2012-05-21blackfin: don't open-code force_sigsegv()Al Viro
... especially since we don't have the right k_sigaction here, so resetting sa_handler won't work. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-05-21blackfin: use set_current_blocked() and block_sigmask()Matt Fleming
As described in e6fa16ab ("signal: sigprocmask() should do retarget_shared_pending()") the modification of current->blocked is incorrect as we need to check whether the signal we're about to block is pending in the shared queue. Also, use the new helper function introduced in commit 5e6292c0f28f ("signal: add block_sigmask() for adding sigmask to current->blocked") which centralises the code for updating current->blocked after successfully delivering a signal and reduces the amount of duplicate code across architectures. In the past some architectures got this code wrong, so using this helper function should stop that from happening again. Acked-by: Oleg Nesterov <oleg@redhat.com> Acked-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Matt Fleming <matt.fleming@intel.com> Acked-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-05-21Merge branch 'smp-hotplug-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull smp hotplug cleanups from Thomas Gleixner: "This series is merily a cleanup of code copied around in arch/* and not changing any of the real cpu hotplug horrors yet. I wish I'd had something more substantial for 3.5, but I underestimated the lurking horror..." Fix up trivial conflicts in arch/{arm,sparc,x86}/Kconfig and arch/sparc/include/asm/thread_info_32.h * 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (79 commits) um: Remove leftover declaration of alloc_task_struct_node() task_allocator: Use config switches instead of magic defines sparc: Use common threadinfo allocator score: Use common threadinfo allocator sh-use-common-threadinfo-allocator mn10300: Use common threadinfo allocator powerpc: Use common threadinfo allocator mips: Use common threadinfo allocator hexagon: Use common threadinfo allocator m32r: Use common threadinfo allocator frv: Use common threadinfo allocator cris: Use common threadinfo allocator x86: Use common threadinfo allocator c6x: Use common threadinfo allocator fork: Provide kmemcache based thread_info allocator tile: Use common threadinfo allocator fork: Provide weak arch_release_[task_struct|thread_info] functions fork: Move thread info gfp flags to header fork: Remove the weak insanity sh: Remove cpu_idle_wait() ...
2012-05-21blackfin: fix build after add bf60x mach/pm.hSteven Miao
Signed-off-by: Steven Miao <realmz6@gmail.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-05-21blackfin: twi: include linux/i2c.hSonic Zhang
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-05-21blackfin: bf60x: add head file for crc controllerSonic Zhang
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-05-21blackfin: bf60x: twi: work around temporary anomaly 0501001Sonic Zhang
Disable IRQ when reading MMR rcv_data8 and rcv_data16. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-05-21blackfin: twi: Move TWI MMR access macro to twi head fileSonic Zhang
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-05-21blackfin: twi: Move TWI peripheral pin request array to platform dataSonic Zhang
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-05-21blackfin: bf60x: anomaly: Add a temporary anomaly 0501001Sonic Zhang
Add a temporary anomaly 0501001 for data loss in MMR reading if interrupted. Add work around for bfin serial driver as well. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-05-21blackfin: bf60x: Rename the DDR controller macroSonic Zhang
Rename the DDR controller macro from DDR0 to DMC0 to avoid confustion for bf60x. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-05-21blackfin: mach-bf609: pm: cleanup bfin_deepsleepSteven Miao
In bfin_deepsleep(), using register instead of local variable and remove unused dpmc register read. Signed-off-by: Steven Miao <realmz6@gmail.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-05-21blackfin: bf60x: cleanup get clock codeSonic Zhang
Remove redundance code for get clock. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-05-21blackfin: bf60x: pm: Add a debug option to calculate kernel wakeup time.Sonic Zhang
Display the total time when kernel resumes normal from standby or suspend to mem mode. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-05-21blackfin: bf60x: add wakeup source selectSteven Miao
Support select the wakeup source for power management on bf60x. Signed-off-by: Steven Miao <realmz6@gmail.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-05-21blackfin: bf60x: make clock changeable in kernel menuconfigBob Liu
Add clock changeable support in kernel menuconfig for bf60x. Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-05-21blackfin:mach-bf609: fix norflash for bf609-ezkitBob Liu
Set smc register to async flash protocol mode and use physmap driver instead of bfin-bf6xx. Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-05-21blackfin: mach-bf609: add can_wakeup to ethernet deviceBob Liu
Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-05-21blackfin: remove redundant CONFIG_BF60x macroSonic Zhang
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-05-21blackfin: rotary: Add pm_wakeup flag to platform data structure.Sonic Zhang
Rotary can't be used as a wakeup source in all platform. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-05-21bfin_gpio: fix bf548-ezkit kernel fail to bootSteven Miao
Fix bf548-ezkit kernel fail to boot when request peripheral pins. Signed-off-by: Steven Miao <realmz6@gmail.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-05-21bfin_dma: fix initcall return error in proc_dma_init()Steven Miao
Signed-off-by: Steven Miao <realmz6@gmail.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-05-21Blackfin: delete fork funcMike Frysinger
We don't implement fork() since we are no-mmu, so redirect it to the existing ENOSYS stub rather than adding a custom EINVAL one. Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-05-21Blackfin: fix unused clk var warningMike Frysinger
This is only used on BF60x code (so this patch should get squashed into the original one that added it). Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-05-21blackfin: SMP: pda: "next" field of blackfin_pda only used in SMP kernelSteven Miao
Signed-off-by: Steven Miao <realmz6@gmail.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-05-21blackfin: GPIO: Implement more GPIO APIsSonic Zhang
Implement more GPIO APIs in case GPIOLIB is disabled. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-05-21blackfin: mach-common: ints-priority: fix compile errorBob Liu
IRQ_PINT4/PINT5 are not defined on !CONFIG_BF60x, this patch fix it. Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-05-21blackfin: bf60x: bfin_uart: Add more LCR bits masksSonic Zhang
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-05-21blackfin: license: Change ADI BSD licenseSonic Zhang
Change ADI BSD license to standart 3 clause BSD license for some blackfin arch code requested by ADI Legal. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-05-21blackfin: bf537-stamp: update board file for platform bfin_sport deviceAaron Wu
Blackfin sport driver has been rewrited update board file according. Signed-off-by: Aaron Wu <Aaron.Wu@analog.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-05-21blackfin: bf60x: cleanup mem_map macroSteven Miao
Signed-off-by: Steven Miao <realmz6@gmail.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-05-21blackfin: bf60x: fix compiling warningBob Liu
Fix several compiling warning for bf60x. Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-05-21blackfin: bf60x: add power management supportSteven Miao
Add bf60x cpu pm callbacks and change blackfin pm framework to support bf60x. Signed-off-by: Steven Miao <realmz6@gmail.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-05-21blackfin: bf60x: add l2 ecc irq handlerBob Liu
bf60x support l2 hardware ecc error check, add panic when double bits ecc error happened. Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-05-21blackfin: twi: move twi bit mask macro to twi head fileSonic Zhang
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-05-21blackfin: bf60x: enable gptimer clock sourceSteven Miao
Signed-off-by: Steven Miao <realmz6@gmail.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-05-21blackfin: add spi/sport3/ppi head file for bf60xScott Jiang
Signed-off-by: Scott Jiang <scott.jiang.linux@gmail.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-05-21blackfin: cplb: add support for bf60xBob Liu
Bf60x support big CPLB pages, this commit enable it. Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-05-21blackfin: mach-common: add sec support for bf60xSteven Miao
Add system event controller support for bf60x so that interrupt can be handled. Signed-off-by: Steven Miao <realmz6@gmail.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-05-21blackfin: bf60x: add clock supportSteven Miao
Add clock support for bf60x. Signed-off-by: Steven Miao <realmz6@gmail.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-05-21blackfin: add bf60x to current frameworkBob Liu
This patch added bf60x to current blackfin kernel framework. Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-05-21blackfin: mach-bf609: add machine filesSonic Zhang
Add machine files for bf60x including head files, Kconfig/Makefile and board file. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-05-21blackfin: asm: fix blackfin.h brokenBob Liu
do{...}while makes no sense in __ASSEMBLY__ code paths. now kernels fail to build: arch/blackfin/mach-bf561/atomic.S: Assembler messages: arch/blackfin/mach-bf561/atomic.S:48: Error: syntax error. Input text was do. arch/blackfin/mach-bf561/atomic.S:48: Error: arch/blackfin/mach-bf561/atomic.S:48: Error: syntax error. Input text was }. arch/blackfin/mach-bf561/atomic.S:48: Error: arch/blackfin/mach-bf561/atomic.S:53: Error: syntax error. Input text was do. arch/blackfin/mach-bf561/atomic.S:53: Error: arch/blackfin/mach-bf561/atomic.S:53: Error: syntax error. Input text was }. Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-05-21blackfin: configs: add SMP support back to BF561-EZKIT-SMP_defconfigBob Liu
SMP support was removed from BF561-EZKIT-SMP_defconfig in last commit by mistake, this patch add it back. Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-05-16fork: move the real prepare_to_copy() users to arch_dup_task_struct()Suresh Siddha
Historical prepare_to_copy() is mostly a no-op, duplicated for majority of the architectures and the rest following the x86 model of flushing the extended register state like fpu there. Remove it and use the arch_dup_task_struct() instead. Suggested-by: Oleg Nesterov <oleg@redhat.com> Suggested-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Link: http://lkml.kernel.org/r/1336692811-30576-1-git-send-email-suresh.b.siddha@intel.com Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: David Howells <dhowells@redhat.com> Cc: Koichi Yasutake <yasutake.koichi@jp.panasonic.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Chris Zankel <chris@zankel.net> Cc: Richard Henderson <rth@twiddle.net> Cc: Russell King <linux@arm.linux.org.uk> Cc: Haavard Skinnemoen <hskinnemoen@gmail.com> Cc: Mike Frysinger <vapier@gentoo.org> Cc: Mark Salter <msalter@redhat.com> Cc: Aurelien Jacquiot <a-jacquiot@ti.com> Cc: Mikael Starvik <starvik@axis.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Richard Kuo <rkuo@codeaurora.org> Cc: Tony Luck <tony.luck@intel.com> Cc: Michal Simek <monstr@monstr.eu> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Jonas Bonn <jonas@southpole.se> Cc: James E.J. Bottomley <jejb@parisc-linux.org> Cc: Helge Deller <deller@gmx.de> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Chen Liqin <liqin.chen@sunplusct.com> Cc: Lennox Wu <lennox.wu@gmail.com> Cc: David S. Miller <davem@davemloft.net> Cc: Chris Metcalf <cmetcalf@tilera.com> Cc: Jeff Dike <jdike@addtoit.com> Cc: Richard Weinberger <richard@nod.at> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2012-05-08Merge branch 'smp/threadalloc' into smp/hotplugThomas Gleixner
Reason: Pull in the separate branch which was created so arch/tile can base further work on it. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2012-05-05init_task: Replace CONFIG_HAVE_GENERIC_INIT_TASKThomas Gleixner
Now that all archs except ia64 are converted, replace the config and let the ia64 select CONFIG_ARCH_INIT_TASK Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/20120503085035.867948914@linutronix.de
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