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* genirq: Remove irq argument from irq flow handlersThomas Gleixner2015-09-161-3/+2
| | | | | | | | | | | | | | Most interrupt flow handlers do not use the irq argument. Those few which use it can retrieve the irq number from the irq descriptor. Remove the argument. Search and replace was done with coccinelle and some extra helper scripts around it. Thanks to Julia for her help! Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Julia Lawall <Julia.Lawall@lip6.fr> Cc: Jiang Liu <jiang.liu@linux.intel.com>
* Merge branch 'locking-core-for-linus' of ↵Linus Torvalds2015-09-041-1/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull locking and atomic updates from Ingo Molnar: "Main changes in this cycle are: - Extend atomic primitives with coherent logic op primitives (atomic_{or,and,xor}()) and deprecate the old partial APIs (atomic_{set,clear}_mask()) The old ops were incoherent with incompatible signatures across architectures and with incomplete support. Now every architecture supports the primitives consistently (by Peter Zijlstra) - Generic support for 'relaxed atomics': - _acquire/release/relaxed() flavours of xchg(), cmpxchg() and {add,sub}_return() - atomic_read_acquire() - atomic_set_release() This came out of porting qwrlock code to arm64 (by Will Deacon) - Clean up the fragile static_key APIs that were causing repeat bugs, by introducing a new one: DEFINE_STATIC_KEY_TRUE(name); DEFINE_STATIC_KEY_FALSE(name); which define a key of different types with an initial true/false value. Then allow: static_branch_likely() static_branch_unlikely() to take a key of either type and emit the right instruction for the case. To be able to know the 'type' of the static key we encode it in the jump entry (by Peter Zijlstra) - Static key self-tests (by Jason Baron) - qrwlock optimizations (by Waiman Long) - small futex enhancements (by Davidlohr Bueso) - ... and misc other changes" * 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (63 commits) jump_label/x86: Work around asm build bug on older/backported GCCs locking, ARM, atomics: Define our SMP atomics in terms of _relaxed() operations locking, include/llist: Use linux/atomic.h instead of asm/cmpxchg.h locking/qrwlock: Make use of _{acquire|release|relaxed}() atomics locking/qrwlock: Implement queue_write_unlock() using smp_store_release() locking/lockref: Remove homebrew cmpxchg64_relaxed() macro definition locking, asm-generic: Add _{relaxed|acquire|release}() variants for 'atomic_long_t' locking, asm-generic: Rework atomic-long.h to avoid bulk code duplication locking/atomics: Add _{acquire|release|relaxed}() variants of some atomic operations locking, compiler.h: Cast away attributes in the WRITE_ONCE() magic locking/static_keys: Make verify_keys() static jump label, locking/static_keys: Update docs locking/static_keys: Provide a selftest jump_label: Provide a self-test s390/uaccess, locking/static_keys: employ static_branch_likely() x86, tsc, locking/static_keys: Employ static_branch_likely() locking/static_keys: Add selftest locking/static_keys: Add a new static_key interface locking/static_keys: Rework update logic locking/static_keys: Add static_key_{en,dis}able() helpers ...
| * atomic: Replace atomic_{set,clear}_mask() usagePeter Zijlstra2015-07-271-1/+1
| | | | | | | | | | | | | | | | Replace the deprecated atomic_{set,clear}_mask() usage with the now ubiquous atomic_{or,andnot}() functions. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* | blackfin: Prepare irq handlers for irq argument removalThomas Gleixner2015-07-311-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The irq argument of most interrupt flow handlers is unused or merily used instead of a local variable. The handlers which need the irq argument can retrieve the irq number from the irq descriptor. Search and update was done with coccinelle and the invaluable help of Julia Lawall. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Julia Lawall <Julia.Lawall@lip6.fr> Cc: Steven Miao <realmz6@gmail.com> Cc: adi-buildroot-devel@lists.sourceforge.net
* | blackfin/irq: Use irq_set_handler_locked()Thomas Gleixner2015-07-271-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use irq_set_handler_locked() as it avoids a redundant lookup of the irq descriptor. Search and update was done with coccinelle. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Steven Miao <realmz6@gmail.com> Cc: Jiang Liu <jiang.liu@linux.intel.com> Cc: Julia Lawall <julia.lawall@lip6.fr> Cc: adi-buildroot-devel@lists.sourceforge.net Link: http://lkml.kernel.org/r/20150713125611.731615902@linutronix.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* | blackfin/irq: Use access helper irq_data_get_affinity_mask()Jiang Liu2015-07-271-1/+2
|/ | | | | | | | | | This is a preparatory patch for moving irq_data struct members. Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com> Cc: Steven Miao <realmz6@gmail.com> Cc: adi-buildroot-devel@lists.sourceforge.net Link: http://lkml.kernel.org/r/20150713125611.652550580@linutronix.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* Merge tag 'blackfin-for-linus' of ↵Linus Torvalds2015-04-242-0/+12
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/realmz6/blackfin-linux Pull blackfin updates from Steven Miao. * tag 'blackfin-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/realmz6/blackfin-linux: eth: bf609 eth clock: add pclk clock for stmmac driver probe blackfin: Wire up missing syscalls arch: blackfin: kernel: kgdb: Remove unused function dma: fix build error after update to v3.19 blackfin: io: define __raw_readx/writex with bfin_readx/writex bf609: add resources for lcd nl8048 pm: sometimes wake up from suspend to RAM would fail debug-mmrs: Eliminate all traces of the USB_PHY_TEST MMR bf609: remove softswitch i2c configuration from adv7842 and adv7511 platform data bf609: add platform data for soft switch devices on the video extenders bf609: enable soft switch gpio driver by default bf609: add gpio soft switch platform data for mcp23017 i2c devices bf609: use new SND_BF6XX_PCM to choose audio pcm driver bug[220] kgdb: change the smp cross core function entry arch: blackfin: kernel: setup.c: Cleaning up missing null-terminate in conjunction with strncpy blackfin: defconfigs: cleanup unused CONFIG_MTD_CHAR, add MTD_SPI_NOR for BF537-STAMP
| * blackfin: Wire up missing syscallsChen Gang2015-04-241-0/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The related syscalls are below which may cause samples/kdbus building break in next-20150401 tree, the related information and error: CALL scripts/checksyscalls.sh <stdin>:1223:2: warning: #warning syscall kcmp not implemented [-Wcpp] <stdin>:1226:2: warning: #warning syscall finit_module not implemented [-Wcpp] <stdin>:1229:2: warning: #warning syscall sched_setattr not implemented [-Wcpp] <stdin>:1232:2: warning: #warning syscall sched_getattr not implemented [-Wcpp] <stdin>:1235:2: warning: #warning syscall renameat2 not implemented [-Wcpp] <stdin>:1238:2: warning: #warning syscall seccomp not implemented [-Wcpp] <stdin>:1241:2: warning: #warning syscall getrandom not implemented [-Wcpp] <stdin>:1244:2: warning: #warning syscall memfd_create not implemented [-Wcpp] <stdin>:1247:2: warning: #warning syscall bpf not implemented [-Wcpp] <stdin>:1250:2: warning: #warning syscall execveat not implemented [-Wcpp] [...] HOSTCC samples/kdbus/kdbus-workers samples/kdbus/kdbus-workers.c: In function ‘prime_new’: samples/kdbus/kdbus-workers.c:930:18: error: ‘__NR_memfd_create’ undeclared (first use in this function) p->fd = syscall(__NR_memfd_create, "prime-area", MFD_CLOEXEC); ^ samples/kdbus/kdbus-workers.c:930:18: note: each undeclared identifier is reported only once for each function it appears in Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
| * pm: sometimes wake up from suspend to RAM would failAaron Wu2015-04-231-0/+2
| | | | | | | | | | | | | | | | | | Sometimes it fails to wake up from suspend to RAM, this is because we would flush the data cache by assemble command FLUSHINV before suspend to RAM, and there is a delay between this command execution and cache flush completion. Add a 1uS delay to works around this. Signed-off-by: Aaron Wu <Aaron.wu@analog.com>
* | blackfin: Use common outgoing-CPU-notification codePaul E. McKenney2015-03-111-4/+2
|/ | | | | | | | | | | | This commit removes the open-coded CPU-offline notification with new common code. This change avoids calling scheduler code using RCU from an offline CPU that RCU is ignoring. This commit is compatible with the existing code in not checking for timeout during a prior offline for a given CPU. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Steven Miao <realmz6@gmail.com> Cc: <adi-buildroot-devel@lists.sourceforge.net>
* blackfin: mach-common: ints-priority: remove unused functionRickard Strandqvist2015-01-201-8/+0
| | | | | | | | | | Remove the function bfin_sec_resume() that is not used anywhere. This was partially found by using a static code analysis program called cppcheck. Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* Merge branch 'for-3.18-consistent-ops' of ↵Linus Torvalds2014-10-152-5/+5
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu Pull percpu consistent-ops changes from Tejun Heo: "Way back, before the current percpu allocator was implemented, static and dynamic percpu memory areas were allocated and handled separately and had their own accessors. The distinction has been gone for many years now; however, the now duplicate two sets of accessors remained with the pointer based ones - this_cpu_*() - evolving various other operations over time. During the process, we also accumulated other inconsistent operations. This pull request contains Christoph's patches to clean up the duplicate accessor situation. __get_cpu_var() uses are replaced with with this_cpu_ptr() and __this_cpu_ptr() with raw_cpu_ptr(). Unfortunately, the former sometimes is tricky thanks to C being a bit messy with the distinction between lvalues and pointers, which led to a rather ugly solution for cpumask_var_t involving the introduction of this_cpu_cpumask_var_ptr(). This converts most of the uses but not all. Christoph will follow up with the remaining conversions in this merge window and hopefully remove the obsolete accessors" * 'for-3.18-consistent-ops' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu: (38 commits) irqchip: Properly fetch the per cpu offset percpu: Resolve ambiguities in __get_cpu_var/cpumask_var_t -fix ia64: sn_nodepda cannot be assigned to after this_cpu conversion. Use __this_cpu_write. percpu: Resolve ambiguities in __get_cpu_var/cpumask_var_t Revert "powerpc: Replace __get_cpu_var uses" percpu: Remove __this_cpu_ptr clocksource: Replace __this_cpu_ptr with raw_cpu_ptr sparc: Replace __get_cpu_var uses avr32: Replace __get_cpu_var with __this_cpu_write blackfin: Replace __get_cpu_var uses tile: Use this_cpu_ptr() for hardware counters tile: Replace __get_cpu_var uses powerpc: Replace __get_cpu_var uses alpha: Replace __get_cpu_var ia64: Replace __get_cpu_var uses s390: cio driver &__get_cpu_var replacements s390: Replace __get_cpu_var uses mips: Replace __get_cpu_var uses MIPS: Replace __get_cpu_var uses in FPU emulator. arm: Replace __this_cpu_ptr with raw_cpu_ptr ...
| * blackfin: Replace __get_cpu_var usesChristoph Lameter2014-08-262-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | __get_cpu_var() is used for multiple purposes in the kernel source. One of them is address calculation via the form &__get_cpu_var(x). This calculates the address for the instance of the percpu variable of the current processor based on an offset. Other use cases are for storing and retrieving data from the current processors percpu area. __get_cpu_var() can be used as an lvalue when writing data or on the right side of an assignment. __get_cpu_var() is defined as : #define __get_cpu_var(var) (*this_cpu_ptr(&(var))) __get_cpu_var() always only does an address determination. However, store and retrieve operations could use a segment prefix (or global register on other platforms) to avoid the address calculation. this_cpu_write() and this_cpu_read() can directly take an offset into a percpu area and use optimized assembly code to read and write per cpu variables. This patch converts __get_cpu_var into either an explicit address calculation using this_cpu_ptr() or into a use of this_cpu operations that use the offset. Thereby address calculations are avoided and less registers are used when code is generated. At the end of the patch set all uses of __get_cpu_var have been removed so the macro is removed too. The patch set includes passes over all arches as well. Once these operations are used throughout then specialized macros can be defined in non -x86 arches as well in order to optimize per cpu access by f.e. using a global register that may be set to the per cpu base. Transformations done to __get_cpu_var() 1. Determine the address of the percpu instance of the current processor. DEFINE_PER_CPU(int, y); int *x = &__get_cpu_var(y); Converts to int *x = this_cpu_ptr(&y); 2. Same as #1 but this time an array structure is involved. DEFINE_PER_CPU(int, y[20]); int *x = __get_cpu_var(y); Converts to int *x = this_cpu_ptr(y); 3. Retrieve the content of the current processors instance of a per cpu variable. DEFINE_PER_CPU(int, y); int x = __get_cpu_var(y) Converts to int x = __this_cpu_read(y); 4. Retrieve the content of a percpu struct DEFINE_PER_CPU(struct mystruct, y); struct mystruct x = __get_cpu_var(y); Converts to memcpy(&x, this_cpu_ptr(&y), sizeof(x)); 5. Assignment to a per cpu variable DEFINE_PER_CPU(int, y) __get_cpu_var(y) = x; Converts to __this_cpu_write(y, x); 6. Increment/Decrement etc of a per cpu variable DEFINE_PER_CPU(int, y); __get_cpu_var(y)++ Converts to __this_cpu_inc(y) CC: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Christoph Lameter <cl@linux.com> Signed-off-by: Tejun Heo <tj@kernel.org>
* | treewide: Fix typo in printkMasanari Iida2014-08-261-1/+1
|/ | | | | | | | | This patch fix spelling typo in printk within vairous part of the code. Signed-off-by: Masanari Iida <standby24x7@gmail.com> Acked-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* irq: blackfin sec: drop duplicated sec priority setSteven Miao2014-07-261-2/+0
| | | | Signed-off-by: Steven Miao <realmz6@gmail.com>
* blackfin: Support L1 SRAM parity checking feature on bf60xSonic Zhang2014-01-292-21/+30
| | | | | | | | Move code for the SEC faults from the IRQ hanlders into IRQ actions. refine bfin fault routine handle Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Steven Miao <realmz6@gmail.com>
* blackfin: delete non-required instances of <linux/init.h>Paul Gortmaker2014-01-293-3/+0
| | | | | | | | | | | None of these files are actually using any __init type directives and hence don't need to include <linux/init.h>. Most are just a left over from __devinit and __cpuinit removal, or simply due to code getting copied from one driver to the next. Cc: Mike Frysinger <vapier@gentoo.org> Cc: uclinux-dist-devel@blackfin.uclinux.org Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
* 06/18] smp, blackfin: kill SMP single function call interruptJiang Liu2014-01-291-5/+1
| | | | | | | | | | | | | | | | | | Commit 9a46ad6d6df3b54 "smp: make smp_call_function_many() use logic similar to smp_call_function_single()" has unified the way to handle single and multiple cross-CPU function calls. Now only one interrupt is needed for architecture specific code to support generic SMP function call interfaces, so kill the redundant single function call interrupt. Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Shaohua Li <shli@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Ingo Molnar <mingo@elte.hu> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Jiri Kosina <trivial@kernel.org> Cc: Mike Frysinger <vapier@gentoo.org> Cc: uclinux-dist-devel@blackfin.uclinux.org Signed-off-by: Jiang Liu <liuj97@gmail.com>
* blackfin: fix build warning for unused variableSteven Miao2013-11-151-1/+4
| | | | Signed-off-by: Steven Miao <realmz6@gmail.com>
* smp: bf561: and smb_wmb()/smp_rmb() at ipi send/receiveSteven Miao2013-11-151-4/+8
| | | | | | add smb_wmb()/smp_rmb() to keep cache coherent Signed-off-by: Steven Miao <realmz6@gmail.com>
* pm: use GFP_ATOMIC when pm core call this functionScott Jiang2013-11-151-1/+1
| | | | | | We shouldn't sleep in atomic sections. Signed-off-by: Scott Jiang <scott.jiang.linux@gmail.com>
* blackfin: adi gpio driver and pinctrl driver supportSonic Zhang2013-11-152-401/+35
| | | | | | | | | | Remove gpio driver for new gpio controller on BF54x and BF60x. Build the bfin_gpio driver only when other BF5xx processors are selected. Replace the prefix of some gpio and peripheral functions with adi. add portmux platform data in machine portmux.h Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Steven Miao <realmz6@gmail.com>
* blackfin: scb: Add system crossbar init code.Steven Miao2013-09-132-0/+54
| | | | | | | | If SCB exists in select blackfin cpu, developer can change the SCB priority in kernel configuration. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Steven Miao <realmz6@gmail.com>
* Merge branch 'cpuinit_phase2' of ↵Linus Torvalds2013-07-183-9/+9
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux Pull phase two of __cpuinit removal from Paul Gortmaker: "With the __cpuinit infrastructure removed earlier, this group of commits only removes the function/data tagging that was done with the various (now no-op) __cpuinit related prefixes. Now that the dust has settled with yesterday's v3.11-rc1, there hopefully shouldn't be any new users leaking back in tree, but I think we can leave the harmless no-op stubs there for a release as a courtesy to those who still have out of tree stuff and weren't paying attention. Although the commits are against the recent tag to allow for minor context refreshes for things like yesterday's v3.11-rc1~ slab content, the patches have been largely unchanged for weeks, aside from such trivial updates. For detail junkies, the largely boring and mostly irrelevant history of the patches can be viewed at: http://git.kernel.org/cgit/linux/kernel/git/paulg/cpuinit-delete.git If nothing else, I guess it does at least demonstrate the level of involvement required to shepherd such a treewide change to completion. This is the same repository of patches that has been applied to the end of the daily linux-next branches for the past several weeks" * 'cpuinit_phase2' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux: (28 commits) block: delete __cpuinit usage from all block files drivers: delete __cpuinit usage from all remaining drivers files kernel: delete __cpuinit usage from all core kernel files rcu: delete __cpuinit usage from all rcu files net: delete __cpuinit usage from all net files acpi: delete __cpuinit usage from all acpi files hwmon: delete __cpuinit usage from all hwmon files cpufreq: delete __cpuinit usage from all cpufreq files clocksource+irqchip: delete __cpuinit usage from all related files x86: delete __cpuinit usage from all x86 files score: delete __cpuinit usage from all score files xtensa: delete __cpuinit usage from all xtensa files openrisc: delete __cpuinit usage from all openrisc files m32r: delete __cpuinit usage from all m32r files hexagon: delete __cpuinit usage from all hexagon files frv: delete __cpuinit usage from all frv files cris: delete __cpuinit usage from all cris files metag: delete __cpuinit usage from all metag files tile: delete __cpuinit usage from all tile files sh: delete __cpuinit usage from all sh files ...
| * blackfin: delete __cpuinit usage from all blackfin filesPaul Gortmaker2013-07-153-9/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The __cpuinit type of throwaway sections might have made sense some time ago when RAM was more constrained, but now the savings do not offset the cost and complications. For example, the fix in commit 5e427ec2d0 ("x86: Fix bit corruption at CPU resume time") is a good example of the nasty type of bugs that can be created with improper use of the various __init prefixes. After a discussion on LKML[1] it was decided that cpuinit should go the way of devinit and be phased out. Once all the users are gone, we can then finally remove the macros themselves from linux/init.h. Note that some harmless section mismatch warnings may result, since notify_cpu_starting() and cpu_up() are arch independent (kernel/cpu.c) are flagged as __cpuinit -- so if we remove the __cpuinit from arch specific callers, we will also get section mismatch warnings. As an intermediate step, we intend to turn the linux/init.h cpuinit content into no-ops as early as possible, since that will get rid of these warnings. In any case, they are temporary and harmless. This removes all the arch/blackfin uses of the __cpuinit macros from all C files. Currently blackfin does not have any __CPUINIT used in assembly files. [1] https://lkml.org/lkml/2013/5/20/589 Cc: Mike Frysinger <vapier@gentoo.org> Cc: Bob Liu <lliubbo@gmail.com> Cc: Sonic Zhang <sonic.zhang@analog.com> Cc: uclinux-dist-devel@blackfin.uclinux.org Acked-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
* | smp: blackfin: fix check error, using atomic_ops to handle atomic_t typeSteven Miao2013-07-161-3/+3
|/ | | | | | Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Steven Miao <realmz6@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* smp: refine bf561 smpboot codeSteven Miao2013-07-091-10/+8
| | | | | | | | | release boot lock earlier to let coreb do setup and calibrate set coreb online later after initialization ready add BFIN_IPI_NONE IPI type drop unnecesarry smp_mb() and using atomic type Signed-off-by: Steven Miao <realmz6@gmail.com>
* Merge tag 'pm+acpi-3.10-rc1' of ↵Linus Torvalds2013-05-012-259/+0
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull power management and ACPI updates from Rafael J Wysocki: - ARM big.LITTLE cpufreq driver from Viresh Kumar. - exynos5440 cpufreq driver from Amit Daniel Kachhap. - cpufreq core cleanup and code consolidation from Viresh Kumar and Stratos Karafotis. - cpufreq scalability improvement from Nathan Zimmer. - AMD "frequency sensitivity feedback" powersave bias for the ondemand cpufreq governor from Jacob Shin. - cpuidle code consolidation and cleanups from Daniel Lezcano. - ARM OMAP cpuidle fixes from Santosh Shilimkar and Daniel Lezcano. - ACPICA fixes and other improvements from Bob Moore, Jung-uk Kim, Lv Zheng, Yinghai Lu, Tang Chen, Colin Ian King, and Linn Crosetto. - ACPI core updates related to hotplug from Toshi Kani, Paul Bolle, Yasuaki Ishimatsu, and Rafael J Wysocki. - Intel Lynxpoint LPSS (Low-Power Subsystem) support improvements from Rafael J Wysocki and Andy Shevchenko. * tag 'pm+acpi-3.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (192 commits) cpufreq: Revert incorrect commit 5800043 cpufreq: MAINTAINERS: Add co-maintainer cpuidle: add maintainer entry ACPI / thermal: do not always return THERMAL_TREND_RAISING for active trip points ARM: s3c64xx: cpuidle: use init/exit common routine cpufreq: pxa2xx: initialize variables ACPI: video: correct acpi_video_bus_add error processing SH: cpuidle: use init/exit common routine ARM: S5pv210: compiling issue, ARM_S5PV210_CPUFREQ needs CONFIG_CPU_FREQ_TABLE=y ACPI: Fix wrong parameter passed to memblock_reserve cpuidle: fix comment format pnp: use %*phC to dump small buffers isapnp: remove debug leftovers ARM: imx: cpuidle: use init/exit common routine ARM: davinci: cpuidle: use init/exit common routine ARM: kirkwood: cpuidle: use init/exit common routine ARM: calxeda: cpuidle: use init/exit common routine ARM: tegra: cpuidle: use init/exit common routine for tegra3 ARM: tegra: cpuidle: use init/exit common routine for tegra2 ARM: OMAP4: cpuidle: use init/exit common routine ...
| * cpufreq: blackfin: move cpufreq driver to drivers/cpufreqViresh Kumar2013-04-102-248/+0
| | | | | | | | | | | | | | | | This patch moves cpufreq driver of BLACKFIN architecture to drivers/cpufreq. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Steven Miao <realmz6@gmail.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| * cpufreq: Notify all policy->cpus in cpufreq_notify_transition()Viresh Kumar2013-04-021-45/+34
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | policy->cpus contains all online cpus that have single shared clock line. And their frequencies are always updated together. Many SMP system's cpufreq drivers take care of this in individual drivers but the best place for this code is in cpufreq core. This patch modifies cpufreq_notify_transition() to notify frequency change for all cpus in policy->cpus and hence updates all users of this API. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Stephen Warren <swarren@nvidia.com> Tested-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
* | bfin: Use generic idle loopThomas Gleixner2013-04-081-1/+1
|/ | | | | | | | | | | | | Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Paul McKenney <paulmck@linux.vnet.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Reviewed-by: Cc: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com> Cc: Magnus Damm <magnus.damm@gmail.com> Cc: Mike Frysinger <vapier@gentoo.org> Link: http://lkml.kernel.org/r/20130321215234.014923303@linutronix.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* blackfin: pm: fix build errorSteven Miao2013-02-201-0/+4
| | | | | | | Only register pm ops when defined CONFIG_PM. Signed-off-by: Steven Miao <realmz6@gmail.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
* ARCH: drivers remove __dev* attributes.Greg Kroah-Hartman2013-01-041-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This fixes up all of the smaller arches that had __dev* markings for their platform-specific drivers. CONFIG_HOTPLUG is going away as an option. As a result, the __dev* markings need to be removed. This change removes the use of __devinit, __devexit_p, __devinitdata, __devinitconst, and __devexit from these drivers. Based on patches originally written by Bill Pemberton, but redone by me in order to handle some of the coding style issues better, by hand. Cc: Bill Pemberton <wfp5p@virginia.edu> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Haavard Skinnemoen <hskinnemoen@gmail.com> Cc: Hans-Christian Egtvedt <egtvedt@samfundet.no> Cc: Mike Frysinger <vapier@gentoo.org> Cc: Mikael Starvik <starvik@axis.com> Cc: Jesper Nilsson <jesper.nilsson@axis.com> Cc: David Howells <dhowells@redhat.com> Cc: Hirokazu Takata <takata@linux-m32r.org> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Michal Simek <monstr@monstr.eu> Cc: Koichi Yasutake <yasutake.koichi@jp.panasonic.com> 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: Paul Mundt <lethal@linux-sh.org> Cc: Chris Metcalf <cmetcalf@tilera.com> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Cc: Bob Liu <lliubbo@gmail.com> Cc: Srinivas Kandagatla <srinivas.kandagatla@st.com> Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: Myron Stowe <myron.stowe@redhat.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Andi Kleen <ak@linux.intel.com> Cc: Jesse Barnes <jbarnes@virtuousgeek.org> Cc: Sebastian Andrzej Siewior <sebastian@breakpoint.cc> Cc: Yinghai Lu <yinghai@kernel.org> Cc: Thierry Reding <thierry.reding@avionic-design.de> Cc: Greg Ungerer <gerg@uclinux.org> Cc: Grant Likely <grant.likely@secretlab.ca> Cc: "Srivatsa S. Bhat" <srivatsa.bhat@linux.vnet.ibm.com> Cc: Mark Salter <msalter@redhat.com> Cc: Yong Zhang <yong.zhang0@gmail.com> Cc: Michael Holzheu <holzheu@linux.vnet.ibm.com> Cc: Cornelia Huck <cornelia.huck@de.ibm.com> Cc: Jan Glauber <jang@linux.vnet.ibm.com> Cc: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Cc: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* Merge branch 'for-linus' of ↵Linus Torvalds2012-12-182-157/+134
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/lliubbo/blackfin Pull blackfin update from Bob Liu. * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lliubbo/blackfin: blackfin: SEC: clean up SEC interrupt initialization blackfin: kgdb: call generic_exec_single() directly blackfin: anomaly: add anomaly 16000030 for bf5xx Blackfin: dpmc: use module_platform_driver macro Blackfin: remove unused is_in_rom() Blackfin: remove unnecessary prototype for kobjsize() Blackfin: twi: Add missing __iomem annotation Blackfin: Annotate strnlen_user and strlen_user 'src' parameter with __user Blackfin: Annotate clear_user 'to' parameter with __user Blackfin: Add missing __user annotations to put_user Blackfin: Annotate strncpy_from_user src parameter with __user blackfin: Use Kbuild infrastructure for kvm_para.h UAPI: (Scripted) Disintegrate arch/blackfin/include/asm
| * blackfin: SEC: clean up SEC interrupt initializationSonic Zhang2012-12-141-139/+133
| | | | | | | | | | | | | | | | | | Append the SEC IRQ after the IVG6, which is consistent to BF5xx SIC. Exclude SIC irqchip fucntions from SEC code. Call handle_fasteoi_irq in SEC error and fault handler. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
| * Blackfin: dpmc: use module_platform_driver macroSrinivas Kandagatla2012-12-131-18/+1
| | | | | | | | | | | | | | | | | | This patch removes some code duplication by using module_platform_driver. Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@st.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Bob Liu <lliubbo@gmail.com>
* | bfin: switch to generic vfork, get rid of pointless wrappersAl Viro2012-11-291-1/+1
| | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | blackfin: convert kernel_thread() and kernel_execve() to generic onesAl Viro2012-10-151-55/+0
|/ | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* Blackfin: smp: add smp_mb() to keep coherencySteven Miao2012-10-081-2/+2
| | | | | | | After use generic smp helpers, smp_mb() should be added to keep coherency. Signed-off-by: Steven Miao <realmz6@gmail.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
* Blackfin: drop irq enable in init_arch_irq()Steven Miao2012-10-081-1/+0
| | | | | | | Kernel common code will enable irq, drop it in init_arch_irq(). Signed-off-by: Steven Miao <realmz6@gmail.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
* Blackfin: fix wrong place disabled irqSteven Miao2012-10-081-3/+1
| | | | | | | Shouldn't disable irq before send ipi. Signed-off-by: Steven Miao <realmz6@gmail.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
* Blackfin: cpufreq: fix dpm_state_tableJames Cosin2012-10-081-3/+2
| | | | | | | | | | | | This patch fixes an assumption that cclk's initial divisor will always be 1 (or 0 in the register). TSCALE is always initialized on startup with a value of 4 regardless of the inital cclk divisor; so, we can't make the assumption without making lots of other assumptions. The TPERIOD value is set with a value of the current cclk (value / (HZ * TSCALE)) - 1; so, we need to adjust based on this initial frequency and not use cclk's initial divisor for adjusting the tscale. Signed-off-by: Steven Miao <realmz6@gmail.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
* blackfin: smp: adapt to generic smp helpersSteven Miao2012-09-071-157/+66
| | | | | | | Replace blackfin ipi message queue with generic smp helper function. Signed-off-by: Steven Miao <realmz6@gmail.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
* bf60x: fix build warningBob Liu2012-07-241-3/+3
| | | | | | Fix several build warning while using bf609-ezkit_defconfig. Signed-off-by: Bob Liu <lliubbo@gmail.com>
* bf60x: cpufreq: fix anomaly 05000273Sonic Zhang2012-07-241-1/+2
| | | | | | | Anomaly 05000273 doesn't apply to bf60x. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
* bf60x: Add double fault, hardware error and NMI SEC handlerSonic Zhang2012-07-241-1/+33
| | | | | Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
* bf60x: sec: Enable sec interrupt source priority configuration.Sonic Zhang2012-07-241-0/+21
| | | | | | | Customize the SEC interrupt priority array in machine ints-priority.c. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
* bf60x: sec: Clean up interrupt initialization code for SEC.Sonic Zhang2012-07-241-87/+121
| | | | | | | | | Turn SEC related macro CONFIG_BF60x into SEC_GCTL. Move machine specific GPIO_PINT macros to machine gpio header. Split SEC init_arch_irq() and vec_to_irq() from old SIC. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
* cleanup: sec and linkport only built on bf60xSteven Miao2012-07-241-0/+2
| | | | | Signed-off-by: Steven Miao <realmz6@gmail.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
* bfin: pint: add pint suspend and resumeSteven Miao2012-07-241-0/+4
| | | | | | | Add pint suspend and resume if defined BFIN_GPIO_PINT. Signed-off-by: Steven Miao <realmz6@gmail.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>