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2012-07-24CPU hotplug, cpusets, suspend: Don't modify cpusets during suspend/resumeSrivatsa S. Bhat
In the event of CPU hotplug, the kernel modifies the cpusets' cpus_allowed masks as and when necessary to ensure that the tasks belonging to the cpusets have some place (online CPUs) to run on. And regular CPU hotplug is destructive in the sense that the kernel doesn't remember the original cpuset configurations set by the user, across hotplug operations. However, suspend/resume (which uses CPU hotplug) is a special case in which the kernel has the responsibility to restore the system (during resume), to exactly the same state it was in before suspend. In order to achieve that, do the following: 1. Don't modify cpusets during suspend/resume. At all. In particular, don't move the tasks from one cpuset to another, and don't modify any cpuset's cpus_allowed mask. So, simply ignore cpusets during the CPU hotplug operations that are carried out in the suspend/resume path. 2. However, cpusets and sched domains are related. We just want to avoid altering cpusets alone. So, to keep the sched domains updated, build a single sched domain (containing all active cpus) during each of the CPU hotplug operations carried out in s/r path, effectively ignoring the cpusets' cpus_allowed masks. (Since userspace is frozen while doing all this, it will go unnoticed.) 3. During the last CPU online operation during resume, build the sched domains by looking up the (unaltered) cpusets' cpus_allowed masks. That will bring back the system to the same original state as it was in before suspend. Ultimately, this will not only solve the cpuset problem related to suspend resume (ie., restores the cpusets to exactly what it was before suspend, by not touching it at all) but also speeds up suspend/resume because we avoid running cpuset update code for every CPU being offlined/onlined. Signed-off-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/20120524141611.3692.20155.stgit@srivatsabhat.in.ibm.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2012-07-24sched/x86: Remove broken power estimationPeter Zijlstra
The x86 sched power implementation has been broken forever and gets in the way of other stuff, remove it. [ For archaeological interest, fixing this code would require dealing with the cross-cpu calling of these functions and more importantly, we need to filter idle time out of the a/m-perf stuff because the ratio will go down to 0 when idle, giving a 0 capacity which is not what we'd want. ] Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Arjan van de Ven <arjan@linux.intel.com> Link: http://lkml.kernel.org/r/1339594110.8980.38.camel@twins Signed-off-by: Ingo Molnar <mingo@kernel.org>
2012-07-24Merge branch 'uhid' into for-linusJiri Kosina
Conflicts: drivers/hid/Kconfig
2012-07-24Merge branches 'hidraw', 'magicmouse', 'multitouch', 'roccat', ↵Jiri Kosina
'suspend-fixes' and 'upstream' into for-linus
2012-07-24Fix typo in include/linux/clk.h .Jan-Simon Möller
Signed-off-by: Jan-Simon Möller <jansimon.moeller@gmx.de> Cc: Russell King <linux@arm.linux.org.uk> Cc: linux-kernel@vger.kernel.org Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-07-24pci: hotplug: Fix typo in pciMasanari Iida
Correct spelling typo in drivers/pci/hotplug. Signed-off-by: Masanari Iida <standby24x7@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-07-24iommu: Fix typo in iommuMasanari Iida
Correct spelling typo in debug messages and comments in drivers/iommu. Signed-off-by: Masanari Iida <standby24x7@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-07-24video: Fix typo in drivers/videoMasanari Iida
Correct spelling typo in debug messages and comments within drivers/video. Signed-off-by: Masanari Iida <standby24x7@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-07-24genetlink: define lockdep_genl_is_held() when CONFIG_LOCKDEPWANG Cong
lockdep_is_held() is defined when CONFIG_LOCKDEP, not CONFIG_PROVE_LOCKING. Cc: "David S. Miller" <davem@davemloft.net> Cc: Jesse Gross <jesse@nicira.com> Signed-off-by: WANG Cong <xiyou.wangcong@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-07-24bf60x: fix build warningBob Liu
Fix several build warning while using bf609-ezkit_defconfig. Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-07-24PM: add BF60x flash suspend and resume supportSteven Miao
Signed-off-by: Steven Miao <realmz6@gmail.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-07-24blackfin: twi: read twi mmr via bfin_read macroSonic Zhang
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-07-24dpm: deepsleep: reserve stackSteven Miao
Reserve 12 bytes on the stack for deepsleep use. Signed-off-by: Steven Miao <realmz6@gmail.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-07-24bf60x: cpufreq: fix anomaly 05000273Sonic Zhang
Anomaly 05000273 doesn't apply to bf60x. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-07-24bf609: add adv7511 display supportScott Jiang
Signed-off-by: Scott Jiang <scott.jiang.linux@gmail.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-07-24blackfin: cplb-nompu: fix ROM cplb size for bf609-ezkitBob Liu
In user xip test, there is a cplb error when ROMKERNEL try to mount romfs using 'mount -t romfs /dev/mtdblock2 /mnt', becasue the CPLB setting is not correct. Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-07-24bf60x: Add double fault, hardware error and NMI SEC handlerSonic Zhang
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-07-24bf60x: update anomaly id in serial and twi driver headers.Sonic Zhang
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-07-24bf60x: vs6624 pin updateVivi Li
Change ce pin to PE4 according to new adaptor board and re-define ppi for vs6624 to avoid gpio conflict. Signed-off-by: Vivi Li <vivi.li@analog.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-07-24bf60x: add default anomaly setting.Sonic Zhang
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-07-24bf60x: update bf60x anomaly list.Sonic Zhang
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-07-24bf60x: sec: Enable sec interrupt source priority configuration.Sonic Zhang
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>
2012-07-24bf60x: sec: Clean up interrupt initialization code for SEC.Sonic Zhang
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>
2012-07-24bf609: reuse bf5xx-i2s-pcm.c as i2s pcm driverScott Jiang
It's the same for both bf5xx and bf6xx soc. Signed-off-by: Scott Jiang <scott.jiang.linux@gmail.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-07-24bf561: add capabilities in adv7183_inputsScott Jiang
Add capabilities in adv7183_inputs to indicate that S_STD is supported. Signed-off-by: Scott Jiang <scott.jiang.linux@gmail.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-07-24bf609: convert vs6624 blank_clocks to black_pixelsScott Jiang
PPI driver has changed blank units from clocks to pixels. Signed-off-by: Scott Jiang <scott.jiang.linux@gmail.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-07-24blackfin: fix musb macro nameBob Liu
Musb can't work since the marco name has been changed. Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-07-24cleanup: sec and linkport only built on bf60xSteven Miao
Signed-off-by: Steven Miao <realmz6@gmail.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-07-24bfin: pint: add pint suspend and resumeSteven Miao
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>
2012-07-24bf60x: pm: add pint suspend and resume supportSteven Miao
save and restore pint sec CTL save and restore pint registers add pint suspend and resume when suspend to mem Signed-off-by: Steven Miao <realmz6@gmail.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-07-24bf609: add HDMI support for adv7842Scott Jiang
Signed-off-by: Scott Jiang <scott.jiang.linux@gmail.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-07-24bf609: add CVBS and S-Video support for adv7842Scott Jiang
Signed-off-by: Scott Jiang <scott.jiang.linux@gmail.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-07-24gpiokeys: add gpio keyboard platform deviceSteven Miao
Signed-off-by: Steven Miao <realmz6@gmail.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-07-24bf60x: pm: pass wakeup paramSteven Miao
Pass wake up source mask and wakeup source polarity to deepsleep and hibernate. Signed-off-by: Steven Miao <realmz6@gmail.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-07-24bf60x: pm: add smc nor flash syscore opsSteven Miao
Signed-off-by: Steven Miao <realmz6@gmail.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-07-24bfin: simple_timer: add READ_COUNTER ioctl and add NOIRQ timer modeSteven Miao
Signed-off-by: Steven Miao <realmz6@gmail.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-07-24blackfin: bf609-ezkit: add probe_type for norflashBob Liu
Set .probe_type = "map_rom" for norflash so that xip_test can run correctly. Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-07-24i2c: i2c-bfin-twi: Always access 16 bit MMR by bfin 16 bit access Macro.Sonic Zhang
Otherwise, the compiler may optimize assemble code into 8bit access instruction when target register is 8 bit width. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-07-24bf609: add ssm2602 support on bf609 platformScott Jiang
Signed-off-by: Scott Jiang <scott.jiang.linux@gmail.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-07-24blackfin: mach-common: ints-priority add irq_set_wakeBob Liu
Add irq_set_wake to bfin_sec_irqchip, drivers like stmmac need it. Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-07-24v4l2: add adv7842 video decoder driverScott Jiang
Signed-off-by: Scott Jiang <scott.jiang.linux@gmail.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-07-24cache: enable L2 sram icache in menuconfigSteven Miao
Signed-off-by: Steven Miao <realmz6@gmail.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-07-24cpufreq: change debug message level to show clock change errorSteven Miao
Signed-off-by: Steven Miao <realmz6@gmail.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-07-24bf60x: Add wake up latency bench for deep sleep mode.Sonic Zhang
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-07-24bfin: pm: add deepsleep for bf60xSonic Zhang
Add add deepsleep for bf60x. 1. Call DMC init functions to enter and exit DDR self refresh mode. 2. Wait till CGU PLL is locked after wake up and exit DDR self refresh mode. 3. Make asessembly function enter_deepsleep comply with C funtion ABI in order to call other C functions. 4. Switch kernel stack by register EX_SCRATCH_REG. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-07-24irq: set cgu event handle to fasteoi handleSteven Miao
Signed-off-by: Steven Miao <realmz6@gmail.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-07-24blackfin: Kconfig: fix ROM range for bf60xBob Liu
ROM range of bf60x is above 0xb0000000. Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-07-24bfin: reorg clock init steps for bf609Bob Liu
So that user can set the clocks through menuconfig. Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-07-24bfin-dma: only use MDMA3 on bf609Steven Miao
Signed-off-by: Steven Miao <realmz6@gmail.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
2012-07-24bf609: bfin_crc: Remove unused CRC TX DMA platform resources.Sonic Zhang
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
generated by cgit (git 2.34.1) at 2025-09-11 22:31:48 +0000