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Deepthi Dharwar 46bcfad7a8 cpuidle: Single/Global registration of idle states 
This patch makes the cpuidle_states structure global (single copy)
instead of per-cpu. The statistics needed on per-cpu basis
by the governor are kept per-cpu. This simplifies the cpuidle
subsystem as state registration is done by single cpu only.
Having single copy of cpuidle_states saves memory. Rare case
of asymmetric C-states can be handled within the cpuidle driver
and architectures such as POWER do not have asymmetric C-states.

Having single/global registration of all the idle states,
dynamic C-state transitions on x86 are handled by
the boot cpu. Here, the boot cpu  would disable all the devices,
re-populate the states and later enable all the devices,
irrespective of the cpu that would receive the notification first.

Reference:
https://lkml.org/lkml/2011/4/25/83

Signed-off-by: Deepthi Dharwar <deepthi@linux.vnet.ibm.com>
Signed-off-by: Trinabh Gupta <g.trinabh@gmail.com>
Tested-by: Jean Pihet <j-pihet@ti.com>
Reviewed-by: Kevin Hilman <khilman@ti.com>
Acked-by: Arjan van de Ven <arjan@linux.intel.com>
Acked-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Len Brown <len.brown@intel.com>
 		2011-11-06 21:13:58 -05:00
..
boot arm/dt: Tegra: Update SDHCI nodes to match bindings 2011-09-20 22:56:53 +02:00
common ARM: 7128/1: vic: Don't write to the read-only register VIC_IRQ_STATUS 2011-10-15 11:04:22 +01:00
configs Merge branch 'next/devel' of ssh://master.kernel.org/pub/scm/linux/kernel/git/arm/linux-arm-soc 2011-07-26 17:41:04 -07:00
include/asm ARM: 7122/1: localtimer: add header linux/errno.h explicitly 2011-10-15 11:04:22 +01:00
kernel ARM: 7117/1: perf: fix HW_CACHE_* events on Cortex-A9 2011-10-15 11:04:22 +01:00
lib arm: remove "optimized" SHA1 routines 2011-08-07 14:07:03 -07:00
mach-at91 cpuidle: Single/Global registration of idle states 2011-11-06 21:13:58 -05:00
mach-bcmring Merge branch 'next/cross-platform' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/linux-arm-soc 2011-07-26 17:12:10 -07:00
mach-clps711x arm: Fold irq_set_chip/irq_set_handler 2011-03-29 14:47:58 +02:00
mach-cns3xxx ARM: cns3xxx: Fix newly introduced warnings in the PCIe code 2011-09-09 23:33:34 +04:00
mach-davinci cpuidle: Single/Global registration of idle states 2011-11-06 21:13:58 -05:00
mach-dove ARM: Dove: fix second SPI initialization call 2011-09-14 14:31:43 +02:00
mach-ebsa110 arm: Fold irq_set_chip/irq_set_handler 2011-03-29 14:47:58 +02:00
mach-ep93xx ARM: 6967/1: ep93xx: ts72xx: fix board model detection 2011-08-15 11:58:59 +01:00
mach-exynos4 cpuidle: Single/Global registration of idle states 2011-11-06 21:13:58 -05:00
mach-footbridge Merge branch 'fixes' of master.kernel.org:/home/rmk/linux-2.6-arm 2011-08-29 16:34:07 -07:00
mach-gemini Merge git://git.infradead.org/mtd-2.6 2011-05-27 20:06:53 -07:00
mach-h720x Merge branch 'devel-stable' into for-next 2011-07-22 23:09:07 +01:00
mach-imx ARM: 7051/1: cpuimx* boards: fix mach-types errors 2011-08-22 15:57:22 +01:00
mach-integrator mach-integrator: fix VGA base regression 2011-09-20 22:58:41 +02:00
mach-iop13xx Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6 2011-07-29 23:35:05 -07:00
mach-iop32x Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6 2011-07-29 23:35:05 -07:00
mach-iop33x Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6 2011-07-29 23:35:05 -07:00
mach-ixp4xx Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6 2011-07-29 23:35:05 -07:00
mach-ixp23xx Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6 2011-07-29 23:35:05 -07:00
mach-ixp2000 Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6 2011-07-29 23:35:05 -07:00
mach-kirkwood cpuidle: Single/Global registration of idle states 2011-11-06 21:13:58 -05:00
mach-ks8695 Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6 2011-07-29 23:35:05 -07:00
mach-l7200/include/mach
…
mach-lpc32xx Merge branch 'next/devel' of ssh://master.kernel.org/pub/scm/linux/kernel/git/arm/linux-arm-soc 2011-07-26 17:41:04 -07:00
mach-mmp ARM: mmp: Change the way we use timer 0 as clockevent timer. 2011-08-11 10:10:46 +08:00
mach-msm Merge branch 'msm-move-gpio' of git://codeaurora.org/quic/kernel/davidb/linux-msm into gpio/next 2011-08-01 15:16:05 +01:00
mach-mv78xx0 Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6 2011-07-29 23:35:05 -07:00
mach-mx5 ARM: mx5: board-cpuimx51.c fixup irq_to_gpio() usage 2011-08-08 08:24:16 +02:00
mach-mxs Merge branch 'next/devel' of ssh://master.kernel.org/pub/scm/linux/kernel/git/arm/linux-arm-soc 2011-07-26 17:41:04 -07:00
mach-netx ARM: 6827/1: mach-netx: delete hardcoded periphid 2011-05-26 10:33:34 +01:00
mach-nomadik ARM: Consolidate the clkdev header files 2011-07-19 18:09:45 +02:00
mach-nuc93x Merge branch 'next/cross-platform' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/linux-arm-soc 2011-07-26 17:12:10 -07:00
mach-omap1 Merge branch 'next/cross-platform' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/linux-arm-soc 2011-07-26 17:12:10 -07:00
mach-omap2 cpuidle: Single/Global registration of idle states 2011-11-06 21:13:58 -05:00
mach-orion5x ARM: mach-orion5x: add missing header file <linux/vga.h> 2011-08-25 09:08:18 -05:00
mach-pnx4008 Merge branch 'next/cross-platform' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/linux-arm-soc 2011-07-26 17:12:10 -07:00
mach-prima2 ARM: CSR: add missing sentinels to of_device_id tables 2011-09-11 09:11:26 +08:00
mach-pxa Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6 2011-07-29 23:35:05 -07:00
mach-realview ARM: realview: ensure visibility of writes during reset 2011-08-12 15:40:57 +01:00
mach-rpc ARM: zImage: remove the static qualifier from global data variables 2011-05-07 00:08:02 -04:00
mach-s3c64xx ARM: S3C64XX: Remove un-used code backlight code on SMDK6410 2011-09-15 13:59:58 +09:00
mach-s3c2400/include/mach ARM: mach-s3c2400: delete 2011-07-18 10:59:26 -04:00
mach-s3c2410 ARM: S3C24XX: Fix s3c24xx build errors if !CONFIG_PM 2011-10-22 04:00:53 +09:00
mach-s3c2412 ARM: S3C24XX: Fix s3c24xx build errors if !CONFIG_PM 2011-10-22 04:00:53 +09:00
mach-s3c2416 ARM: S3C24XX: Fix s3c24xx build errors if !CONFIG_PM 2011-10-22 04:00:53 +09:00
mach-s3c2440 ARM: S3C24XX: Fix s3c24xx build errors if !CONFIG_PM 2011-10-22 04:00:53 +09:00
mach-s3c2443 ARM: S3C2443: Fix bit-reset in setrate of clk_armdiv 2011-09-26 10:30:29 +09:00
mach-s5p64x0 ARM: S5P64X0: Replace irq_gc_ack() with irq_gc_ack_set_bit() 2011-08-19 20:56:17 +09:00
mach-s5pc100 Merge branch 'next-samsung-clkdev-fix' into next-samsung-devel 2011-07-21 17:28:23 +09:00
mach-s5pv210 ARM: S5PV210: Rename sclk_cam clocks for FIMC media driver 2011-09-27 07:00:53 +09:00
mach-sa1100 mach-sa1100: fix PCI build problem 2011-08-10 16:00:48 +00:00
mach-shark Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6 2011-07-29 23:35:05 -07:00
mach-shmobile Merge branch 'rmobile-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-3.x 2011-08-29 13:37:17 -07:00
mach-spear3xx ARM: Consolidate the clkdev header files 2011-07-19 18:09:45 +02:00
mach-spear6xx ARM: Consolidate the clkdev header files 2011-07-19 18:09:45 +02:00
mach-tcc8k clocksource: convert ARM 32-bit up counting clocksources 2011-05-23 18:04:51 +01:00
mach-tegra ARM: tegra: fix compilation error due to mach/hardware.h removal 2011-10-10 14:46:25 +12:00
mach-u300 Merge branch 'next/devel' of ssh://master.kernel.org/pub/scm/linux/kernel/git/arm/linux-arm-soc 2011-07-26 17:41:04 -07:00
mach-ux500 ARM: mach-ux500: enable fix for ARM errata 754322 2011-10-07 17:38:35 +02:00
mach-versatile Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6 2011-07-29 23:35:05 -07:00
mach-vexpress ARM: 7003/1: vexpress: Add clock definition for the SP805. 2011-08-24 09:45:21 +01:00
mach-vt8500 arm: mach-vt8500: add forgotten irq_data conversion 2011-07-07 14:35:25 +00:00
mach-w90x900 ARM: Consolidate the clkdev header files 2011-07-19 18:09:45 +02:00
mach-zynq ARM: zynq: remove incorrectly deleted file 2011-07-28 16:02:53 +00:00
mm ARM: 7113/1: mm: Align bank start to MAX_ORDER_NR_PAGES 2011-10-01 17:49:18 +01:00
nwfpe
…
oprofile Merge branch 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2011-02-15 10:18:48 -08:00
plat-iop ARM: convert PCI defines to variables 2011-07-12 11:19:29 -05:00
plat-mxc iMX: Fix build for iMX53 2011-08-08 08:38:45 +02:00
plat-nomadik net: remove mm.h inclusion from netdevice.h 2011-06-21 19:17:20 -07:00
plat-omap OMAP: omap_device: fix !CONFIG_SUSPEND case in _noirq handlers 2011-09-06 13:19:58 -07:00
plat-orion genirq: replace irq_gc_ack() with {set,clr}_bit variants (fwd) 2011-07-07 16:02:26 +00:00
plat-pxa mmc: sdhci-pxa: move platform data to include/linux/platform_data 2011-07-20 17:20:52 -04:00
plat-s3c24xx Merge branch 'next/deletion' of git+ssh://master.kernel.org/pub/scm/linux/kernel/git/arm/linux-arm-soc 2011-07-25 12:43:28 -07:00
plat-s5p ARM: S5P: fix offset calculation on gpio-interrupt 2011-10-21 18:05:02 +09:00
plat-samsung ARM: SAMSUNG: fix to prevent declaring duplicated 2011-09-15 15:54:15 +09:00
plat-spear Merge branch 'next/cross-platform' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/linux-arm-soc 2011-07-26 17:12:10 -07:00
plat-tcc ARM: Consolidate the clkdev header files 2011-07-19 18:09:45 +02:00
plat-versatile ARM: consolidate SMP cross call implementation 2011-05-23 16:53:17 +01:00
tools ARM: 7051/1: cpuimx* boards: fix mach-types errors 2011-08-22 15:57:22 +01:00
vfp Merge branch 'devel-stable' into for-next 2011-07-22 23:09:07 +01:00
Kconfig ARM: 7091/1: errata: D-cache line maintenance operation by MVA may not succeed 2011-09-17 12:47:17 +01:00
Kconfig-nommu Fix common misspellings 2011-03-31 11:26:23 -03:00
Kconfig.debug lib: consolidate DEBUG_STACK_USAGE option 2011-05-25 08:39:54 -07:00
Makefile Merge branch 'imx/dt' into next/dt 2011-07-28 15:25:46 +00:00