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* Merge tag 'split-asm_system_h-for-linus-20120328' of ↵Linus Torvalds2012-03-281-5/+0
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-asm_system Pull "Disintegrate and delete asm/system.h" from David Howells: "Here are a bunch of patches to disintegrate asm/system.h into a set of separate bits to relieve the problem of circular inclusion dependencies. I've built all the working defconfigs from all the arches that I can and made sure that they don't break. The reason for these patches is that I recently encountered a circular dependency problem that came about when I produced some patches to optimise get_order() by rewriting it to use ilog2(). This uses bitops - and on the SH arch asm/bitops.h drags in asm-generic/get_order.h by a circuituous route involving asm/system.h. The main difficulty seems to be asm/system.h. It holds a number of low level bits with no/few dependencies that are commonly used (eg. memory barriers) and a number of bits with more dependencies that aren't used in many places (eg. switch_to()). These patches break asm/system.h up into the following core pieces: (1) asm/barrier.h Move memory barriers here. This already done for MIPS and Alpha. (2) asm/switch_to.h Move switch_to() and related stuff here. (3) asm/exec.h Move arch_align_stack() here. Other process execution related bits could perhaps go here from asm/processor.h. (4) asm/cmpxchg.h Move xchg() and cmpxchg() here as they're full word atomic ops and frequently used by atomic_xchg() and atomic_cmpxchg(). (5) asm/bug.h Move die() and related bits. (6) asm/auxvec.h Move AT_VECTOR_SIZE_ARCH here. Other arch headers are created as needed on a per-arch basis." Fixed up some conflicts from other header file cleanups and moving code around that has happened in the meantime, so David's testing is somewhat weakened by that. We'll find out anything that got broken and fix it.. * tag 'split-asm_system_h-for-linus-20120328' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-asm_system: (38 commits) Delete all instances of asm/system.h Remove all #inclusions of asm/system.h Add #includes needed to permit the removal of asm/system.h Move all declarations of free_initmem() to linux/mm.h Disintegrate asm/system.h for OpenRISC Split arch_align_stack() out from asm-generic/system.h Split the switch_to() wrapper out of asm-generic/system.h Move the asm-generic/system.h xchg() implementation to asm-generic/cmpxchg.h Create asm-generic/barrier.h Make asm-generic/cmpxchg.h #include asm-generic/cmpxchg-local.h Disintegrate asm/system.h for Xtensa Disintegrate asm/system.h for Unicore32 [based on ver #3, changed by gxt] Disintegrate asm/system.h for Tile Disintegrate asm/system.h for Sparc Disintegrate asm/system.h for SH Disintegrate asm/system.h for Score Disintegrate asm/system.h for S390 Disintegrate asm/system.h for PowerPC Disintegrate asm/system.h for PA-RISC Disintegrate asm/system.h for MN10300 ...
| * Delete all instances of asm/system.hDavid Howells2012-03-281-5/+0
| | | | | | | | | | | | | | Delete all instances of asm/system.h as they should be redundant by this point. Signed-off-by: David Howells <dhowells@redhat.com>
* | nmi watchdog: do not use cpp symbol in KconfigCong Wang2012-03-232-4/+1
|/ | | | | | | | | | | | | | | ARCH_HAS_NMI_WATCHDOG is a macro defined by arch, but config HARDLOCKUP_DETECTOR depends on it. This is wrong, ARCH_HAS_NMI_WATCHDOG has to be a Kconfig config, and arch's need it should select it explicitly. Signed-off-by: WANG Cong <xiyou.wangcong@gmail.com> Acked-by: Don Zickus <dzickus@redhat.com> Acked-by: Mike Frysinger <vapier@gentoo.org> Cc: David Howells <dhowells@redhat.com> Cc: David Miller <davem@davemloft.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* blackfin: clean up string bfin_dma_5xx after rename.Sonic Zhang2012-03-211-1/+1
| | | | | Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
* blackfin:dma: rename bfin_dma_5xx.c to bfin_dma.cBob Liu2012-03-212-2/+8
| | | | | | | bfin_dma_5xx is not a generic name for all blackfin chips. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
* bf548: ssm2602: Add ssm2602 platform data into bf548 ezkit board file.Sonic Zhang2012-03-211-6/+41
| | | | | Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
* Blackfin: s/#if CONFIG/#ifdef CONFIG/Geert Uytterhoeven2012-03-211-1/+1
| | | | | | Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Bob Liu <lliubbo@gmail.com>
* Blackfin: pnav: delete duplicate linux/export.h includeDanny Kukawka2012-03-211-1/+0
| | | | | | | | | | arch/blackfin/mach-bf537/boards/pnav10.c includes 'linux/export.h' twice. No need to include the file a second time in a #ifdef block if already included at top. Remove the duplicate. Signed-off-by: Danny Kukawka <danny.kukawka@bisect.de> Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Bob Liu <lliubbo@gmail.com>
* bf561: add ppi DLEN macro for 10bits to 16bitsScott Jiang2012-03-211-0/+7
| | | | | Signed-off-by: Scott Jiang <scott.jiang.linux@gmail.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
* arch: blackfin: udpate defconfigBob Liu2012-03-213-0/+9
| | | | | | choose musb by default for bf527 and bf548. Signed-off-by: Bob Liu <lliubbo@gmail.com>
* Disintegrate asm/system.h for Blackfin [ver #2]David Howells2012-03-2116-196/+233
| | | | | | | | Disintegrate asm/system.h for Blackfin. Signed-off-by: David Howells <dhowells@redhat.com> cc: uclinux-dist-devel@blackfin.uclinux.org Signed-off-by: Bob Liu <lliubbo@gmail.com>
* arch/blackfin: don't generate random mac in bfin_get_ether_addr()Danny Kukawka2012-03-2113-25/+26
| | | | | | | | | | | | | | | Changed bfin_get_ether_addr() to return a state and to set no random mac address if the board don't provide one. Let the caller of bfin_get_ether_addr() set a random mac address if the return value is not 0. v2: don't set random mac in bfin_get_ether_addr() Signed-off-by: Danny Kukawka <danny.kukawka@bisect.de> Acked-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Bob Liu <lliubbo@gmail.com>
* Blackfin: wire up new process_vm syscallsMike Frysinger2012-03-212-1/+5
| | | | | Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Bob Liu <lliubbo@gmail.com>
* blackfin: cleanup anomaly workaroundsBob Liu2012-03-211-24/+20
| | | | | | | cleanup ANOMALY_05000312 and ANOMALY_05000244 Signed-off-by: Robin Getz <robin.getz@analog.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
* blackfin: update default defconfigBob Liu2012-03-2110-125/+125
| | | | | | Update default defconfig by selecting correct net device driver. Signed-off-by: Bob Liu <lliubbo@gmail.com>
* blackfin: thread_info: add suspend flagBob Liu2012-03-211-0/+2
| | | | | | Add suspend flag to thread_info for suspend/resume. Signed-off-by: Bob Liu <lliubbo@gmail.com>
* bfin: add bfin_ad73311_machine platform deviceBob Liu2012-03-211-0/+20
| | | | | | | | | we can pass sport enable pin through platform data if customer board has reset pin, add it in ad73311_gpio array and modify id to 2 Signed-off-by: Scott Jiang <scott.jiang.linux@gmail.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
* blackfin: bf537: stamp: update board file for 193xBob Liu2012-03-211-2/+2
| | | | | Signed-off-by: Scott Jiang <scott.jiang.linux@gmail.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
* blackfin: kgdb: skip hardware watchpoint testBob Liu2012-03-211-0/+1
| | | | | | | | blackfin doesn't support hardware watchpoint except for over JTAG emulator. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
* bf548: add ppi interrupt mask and blanking clocksScott Jiang2012-03-211-0/+2
| | | | | Signed-off-by: Scott Jiang <scott.jiang.linux@gmail.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
* blackfin: bf561: forgot CSYNC in get_core_lock_noflushBob Liu2012-03-211-0/+7
| | | | | | | | | SMP kgdb runs into dead loop without this CSYNC when one core single steps over get_core_lock_noflush and the other executes get_core_lock as a slave node. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
* spi/bfin_spi: drop bits_per_word from client dataMike Frysinger2012-03-211-1/+0
| | | | | | | | | No other SPI controller has this field, and SPI clients should be setting this up in their own drivers. So drop it from the Blackfin controller to keep people from using it. Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Bob Liu <lliubbo@gmail.com>
* blackfin: cplb-mpu: fix page mask table overflowBarry Song2012-03-211-0/+2
| | | | | | | page mask table will overflow without xip related macros. Signed-off-by: Barry Song <barry.song@analog.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
* blackfin: restore L1 base address and lengthBarry Song2012-03-211-1/+4
| | | | | | | | Restore L1 base address and length to 0 after free else the value will be wrong. Signed-off-by: Barry Song <barry.song@analog.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
* blackfin: timer: refine bfin simple timer driverSteven Miao2012-03-211-4/+6
| | | | | | | Add ioctl cmd for gptimer test app and do some codecleanup(remove spaces). Signed-off-by: Steven Miao <realmz6@gmail.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
* BF561 MDMA : fixed BF561 DMA MMRs definition mismatchSteven Miao2012-03-211-110/+110
| | | | | | | | MDMA io base defined in arch/blackfin/mach-bf561/dma.c do not match the definition of MDMA MMRs in arch/blackfin/mach-bf561/include/mach/defBF561.h Signed-off-by: Steven Miao <realmz6@gmail.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
* bfin_sport: add support for ADC/DAC.Bob Liu2012-03-211-0/+3
| | | | | | | In order to support ADC/DAC demo, add NDSO_MODE mode to bfin_sport.c. After that userspace apps like ndso/awg can work fine. Signed-off-by: Bob Liu <lliubbo@gmail.com>
* sched/rt: Use schedule_preempt_disabled()Thomas Gleixner2012-03-011-3/+1
| | | | | | | | | Coccinelle based conversion. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/n/tip-24swm5zut3h9c4a6s46x8rws@git.kernel.org Signed-off-by: Ingo Molnar <mingo@elte.hu>
* Merge branch 'linux-next' of ↵Linus Torvalds2012-01-111-4/+0
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci * 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci: (80 commits) x86/PCI: Expand the x86_msi_ops to have a restore MSIs. PCI: Increase resource array mask bit size in pcim_iomap_regions() PCI: DEVICE_COUNT_RESOURCE should be equal to PCI_NUM_RESOURCES PCI: pci_ids: add device ids for STA2X11 device (aka ConneXT) PNP: work around Dell 1536/1546 BIOS MMCONFIG bug that breaks USB x86/PCI: amd: factor out MMCONFIG discovery PCI: Enable ATS at the device state restore PCI: msi: fix imbalanced refcount of msi irq sysfs objects PCI: kconfig: English typo in pci/pcie/Kconfig PCI/PM/Runtime: make PCI traces quieter PCI: remove pci_create_bus() xtensa/PCI: convert to pci_scan_root_bus() for correct root bus resources x86/PCI: convert to pci_create_root_bus() and pci_scan_root_bus() x86/PCI: use pci_scan_bus() instead of pci_scan_bus_parented() x86/PCI: read Broadcom CNB20LE host bridge info before PCI scan sparc32, leon/PCI: convert to pci_scan_root_bus() for correct root bus resources sparc/PCI: convert to pci_create_root_bus() sh/PCI: convert to pci_scan_root_bus() for correct root bus resources powerpc/PCI: convert to pci_create_root_bus() powerpc/PCI: split PHB part out of pcibios_map_io_space() ... Fix up conflicts in drivers/pci/msi.c and include/linux/pci_regs.h due to the same patches being applied in other branches.
| * PCI: Pull PCI 'latency timer' setup up into the coreMyron Stowe2012-01-061-4/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The 'latency timer' of PCI devices, both Type 0 and Type 1, is setup in architecture-specific code [see: 'pcibios_set_master()']. There are two approaches being taken by all the architectures - check if the 'latency timer' is currently set between 16 and 255 and if not bring it within bounds, or, do nothing (and then there is the gratuitously different PA-RISC implementation). There is nothing architecture-specific about PCI's 'latency timer' so this patch pulls its setup functionality up into the PCI core by creating a generic 'pcibios_set_master()' function using the '__weak' attribute which can be used by all architectures as a default which, if necessary, can then be over-ridden by architecture-specific code. No functional change. Signed-off-by: Myron Stowe <myron.stowe@redhat.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
* | blackfin: bf561: add adv7183 capture supportBob Liu2012-01-091-0/+95
| | | | | | | | | | Signed-off-by: Scott Jiang <scott.jiang.linux@gmail.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
* | blackfin: bf537: add capture supportBob Liu2012-01-091-0/+70
| | | | | | | | | | Signed-off-by: Scott Jiang <scott.jiang.linux@gmail.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
* | blackfin: bf548: add capture supportScott Jiang2012-01-091-0/+69
| | | | | | | | | | Signed-off-by: Scott Jiang <scott.jiang.linux@gmail.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
* | blackfin: time-ts: rm unused func broadcast_timer_setup()Bob Liu2012-01-091-18/+0
| | | | | | | | | | | | broadcast_timer_setup() has no user now, drop it. Signed-off-by: Bob Liu <lliubbo@gmail.com>
* | blackfin: i2c-lcd: change default clock rateAaron Wu2012-01-092-2/+2
| | | | | | | | | | | | | | | | Change default clock rate of GPIO based I2C operation for BF533 and BF561 to bring up the I2C interface LCD display Signed-off-by: Aaron Wu <Aaron.Wu@analog.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
* | blackfin: mac: dsa: add vlan mask in board fileSteven Miao2012-01-091-0/+2
| | | | | | | | | | | | | | Else push file through ftp/rcp will fail. Signed-off-by: Steven Miao <realmz6@gmail.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
* | blackfin: bf537: change num_chipselect for spi-sportScott Jiang2012-01-091-2/+2
| | | | | | | | | | | | | | spi sport driver can support any gpio as its cs pin. Signed-off-by: Scott Jiang <scott.jiang.linux@gmail.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
* | blackfin: serial: bfin-uart: remove unused fieldSonic Zhang2012-01-091-3/+0
| | | | | | | | | | | | | | Remove unused field for hardware flow control. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
* | bf54x: get mem size: missing break in switchSteven Miao2012-01-091-4/+12
| | | | | | | | | | Signed-off-by: Steven Miao <realmz6@gmail.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
* | blackfin: smp: fix msg queue overflow issueSteven Miao2012-01-091-5/+3
| | | | | | | | | | | | | | | | disable preemption when icache flush and use wait mode cross call, hold the msg queue lock while handle cross function call to avoid overflow Signed-off-by: Steven Miao <realmz6@gmail.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
* | blackfin: config: update macro SPI_BFIN in board fileSonic Zhang2012-01-0926-64/+64
| | | | | | | | | | | | | | | | Macro name for spi controller driver has been modified, so update default board file accordingly. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
* | blackfin: config: update def config for all boardsScott Jiang2012-01-0927-27/+27
| | | | | | | | | | | | | | | | Config name for spi controller driver has been modified in previous commit, so update default config accordingly. Signed-off-by: Scott Jiang <scott.jiang.linux@gmail.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
* | blackfin: smp: cleanup smp codeBob Liu2012-01-096-16/+77
| | | | | | | | | | | | | | | | | | move idle task point to percpu blackfin_cpudata and add smp_timer_broadcast interface. enable SUPPLE_1_WAKEUP and add BFIN_IPI_TIMER ipi support. Signed-off-by: Steven Miao <realmz6@gmail.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
* | blackfin: smp: add suspend and wakeup irq flagsBob Liu2012-01-091-1/+2
| | | | | | | | | | | | | | | | Add IRQF_NO_SUSPEND | IRQF_FORCE_RESUME to irq flags, supplement irq should not be disabled when system do suspend. Signed-off-by: Steven Miao <realmz6@gmail.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
* | blackfin: bf533-stamp: add missed patches for new asoc driverBob Liu2012-01-091-8/+160
| | | | | | | | | | | | | | | | | | | | ASoC drivers changed between 2.6.37 and 3.0, but we didn't apply these changes in bf533 board file. So apply missed patches for asoc since 2.6.37 together. Signed-off-by: Scott Jiang <scott.jiang.linux@gmail.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
* | blackfin: bf533-stamp: fix ad1836 nameBob Liu2012-01-091-2/+3
| | | | | | | | | | | | | | | | The ASoC codec name is "ad1836" and not "ad183x" as the change to rename things ultimately did not get merged. Signed-off-by: Scott Jiang <scott.jiang.linux@gmail.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
* | Merge branch 'pm-for-linus' of ↵Linus Torvalds2012-01-081-2/+0
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm * 'pm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (76 commits) PM / Hibernate: Implement compat_ioctl for /dev/snapshot PM / Freezer: fix return value of freezable_schedule_timeout_killable() PM / shmobile: Allow the A4R domain to be turned off at run time PM / input / touchscreen: Make st1232 use device PM QoS constraints PM / QoS: Introduce dev_pm_qos_add_ancestor_request() PM / shmobile: Remove the stay_on flag from SH7372's PM domains PM / shmobile: Don't include SH7372's INTCS in syscore suspend/resume PM / shmobile: Add support for the sh7372 A4S power domain / sleep mode PM: Drop generic_subsys_pm_ops PM / Sleep: Remove forward-only callbacks from AMBA bus type PM / Sleep: Remove forward-only callbacks from platform bus type PM: Run the driver callback directly if the subsystem one is not there PM / Sleep: Make pm_op() and pm_noirq_op() return callback pointers PM/Devfreq: Add Exynos4-bus device DVFS driver for Exynos4210/4212/4412. PM / Sleep: Merge internal functions in generic_ops.c PM / Sleep: Simplify generic system suspend callbacks PM / Hibernate: Remove deprecated hibernation snapshot ioctls PM / Sleep: Fix freezer failures due to racy usermodehelper_is_disabled() ARM: S3C64XX: Implement basic power domain support PM / shmobile: Use common always on power domain governor ... Fix up trivial conflict in fs/xfs/xfs_buf.c due to removal of unused XBT_FORCE_SLEEP bit
| * | freezer: remove now unused TIF_FREEZETejun Heo2011-11-211-2/+0
| |/ | | | | | | | | | | Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: linux-arch@vger.kernel.org
* | nohz: Remove tick_nohz_idle_enter_norcu() / tick_nohz_idle_exit_norcu()Frederic Weisbecker2011-12-111-2/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Those two APIs were provided to optimize the calls of tick_nohz_idle_enter() and rcu_idle_enter() into a single irq disabled section. This way no interrupt happening in-between would needlessly process any RCU job. Now we are talking about an optimization for which benefits have yet to be measured. Let's start simple and completely decouple idle rcu and dyntick idle logics to simplify. Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Peter Zijlstra <peterz@infradead.org> Reviewed-by: Josh Triplett <josh@joshtriplett.org> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
* | nohz: Allow rcu extended quiescent state handling seperately from tick stopFrederic Weisbecker2011-12-111-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It is assumed that rcu won't be used once we switch to tickless mode and until we restart the tick. However this is not always true, as in x86-64 where we dereference the idle notifiers after the tick is stopped. To prepare for fixing this, add two new APIs: tick_nohz_idle_enter_norcu() and tick_nohz_idle_exit_norcu(). If no use of RCU is made in the idle loop between tick_nohz_enter_idle() and tick_nohz_exit_idle() calls, the arch must instead call the new *_norcu() version such that the arch doesn't need to call rcu_idle_enter() and rcu_idle_exit(). Otherwise the arch must call tick_nohz_enter_idle() and tick_nohz_exit_idle() and also call explicitly: - rcu_idle_enter() after its last use of RCU before the CPU is put to sleep. - rcu_idle_exit() before the first use of RCU after the CPU is woken up. Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Frysinger <vapier@gentoo.org> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Cc: David Miller <davem@davemloft.net> Cc: Chris Metcalf <cmetcalf@tilera.com> Cc: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Paul Mackerras <paulus@samba.org> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Paul Mundt <lethal@linux-sh.org> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
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