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e6b866e954
linux/arch/arm
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Lorenzo Pieralisi e6b866e954 ARM: kernel: update __cpu_disable to use cache LoUIS maintenance API 
When a CPU is hotplugged out caches that reside in its power domain
lose their contents and so must be cleaned to the next memory level.

Currently, __cpu_disable calls flush_cache_all() that for new generation
processor like A15/A7 ends up cleaning and invalidating all cache levels
up to Level of Coherency, which includes the unified L2.

This ends up being a waste of cycles since the L2 cache contents are not
lost on power down.

This patch updates __cpu_disable to use the new LoUIS API cache operations.

Acked-by: Nicolas Pitre <nico@linaro.org>
Reviewed-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Tested-by: Shawn Guo <shawn.guo@linaro.org>
2012-09-25 11:20:26 +01:00
..
boot Merge branch 'fixes' of git://git.linaro.org/people/rmk/linux-arm 2012-09-13 09:05:22 +08:00
common ARM: dma-mapping: add support for dma_get_sgtable() 2012-07-30 12:25:47 +02:00
configs Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into fixes 2012-09-04 21:41:35 -07:00
include/asm ARM: mm: implement LoUIS API for cache maintenance ops 2012-09-25 11:20:25 +01:00
kernel ARM: kernel: update __cpu_disable to use cache LoUIS maintenance API 2012-09-25 11:20:26 +01:00
lib ARM: 7529/1: delay: set loops_per_jiffy when moving to timer-based loop 2012-09-09 17:28:48 +01:00
mach-at91 ARM: at91/clock: fix PLLA overclock warning 2012-08-23 15:00:09 +02:00
mach-bcmring
mach-clps711x ARM: clps711x: Remove the setting of the time 2012-07-17 22:24:30 +02:00
mach-cns3xxx
mach-davinci ARM: davinci: remove broken ntosd2_init_i2c 2012-08-10 13:14:36 +02:00
mach-dove ARM: Orion: Set eth packet size csum offload limit 2012-08-15 13:58:09 +00:00
mach-ebsa110
mach-ep93xx arm-soc: soc-specific updates 2012-07-23 16:08:40 -07:00
mach-exynos Merge branch 'v3.6-samsung-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into fixes 2012-08-23 17:03:49 +02:00
mach-footbridge
mach-gemini ARM: gemini: fix the gemini build 2012-09-04 22:17:34 -07:00
mach-h720x
mach-highbank clk: add highbank clock support 2012-07-11 17:58:47 -07:00
mach-imx ARM: clk-imx35: Fix SSI clock registration 2012-09-11 11:52:28 +02:00
mach-integrator ARM: integrator: include <linux/export.h> 2012-08-09 15:16:44 +02:00
mach-iop13xx
mach-iop32x
mach-iop33x
mach-ixp4xx
mach-kirkwood Merge branch 'fixes-for-3.6' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping 2012-09-08 16:22:43 -07:00
mach-ks8695
mach-l7200/include/mach
mach-lpc32xx ARM: LPC32xx: Add PWM clock 2012-07-20 14:01:51 +02:00
mach-mmp ARM: mmp: fix potential NULL dereference 2012-08-10 22:32:24 +08:00
mach-msm ARM: MSM: use SGI0 to wake secondary CPUs 2012-07-09 17:39:36 +01:00
mach-mv78xx0 Merge branch 'fixes-for-v3.6' of git://git.infradead.org/users/jcooper/linux into fixes 2012-08-15 18:18:29 +02:00
mach-mvebu arm: mvebu: generate DTBs for supported SoCs 2012-07-17 22:38:06 +02:00
mach-mxs ARM: mxs: always build ocotp 2012-08-04 22:52:23 +08:00
mach-netx arch/arm/mach-netx/fb.c: reuse dummy clk routines for CONFIG_HAVE_CLK=n 2012-07-30 17:25:13 -07:00
mach-nomadik
mach-omap1 Merge branch 'dmaengine' of git://git.linaro.org/people/rmk/linux-arm 2012-08-01 16:41:07 -07:00
mach-omap2 Some hwmod, clockdomain, am335x fixes against v3.6-rc4. 2012-09-05 10:09:31 -07:00
mach-orion5x ARM: Orion: Set eth packet size csum offload limit 2012-08-15 13:58:09 +00:00
mach-picoxcell clocksource: dw_apb_timer: Add common DTS glue for dw_apb_timer 2012-07-12 17:26:09 +02:00
mach-pnx4008
mach-prima2 ARM: PRIMA2: delete redundant codes to restore LATCHED when timer resumes 2012-08-02 10:05:27 -07:00
mach-pxa Input: eeti_ts: pass gpio value instead of IRQ 2012-08-09 15:16:41 +02:00
mach-realview
mach-rpc
mach-s3c24xx Merge branch 'v3.6-samsung-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into fixes 2012-08-23 17:03:49 +02:00
mach-s3c64xx ARM: arm-soc soc updates, take 2 2012-07-30 09:45:53 -07:00
mach-s3c2410
mach-s3c2412
mach-s3c2440
mach-s5p64x0 arm-soc: device tree description updates 2012-07-23 16:17:43 -07:00
mach-s5pc100 arm-soc: device tree description updates 2012-07-23 16:17:43 -07:00
mach-s5pv210 arm-soc: board specific updates 2012-07-23 17:34:48 -07:00
mach-sa1100 ARM: sa1100: include linux/io.h in hackkit leds code 2012-08-09 15:16:42 +02:00
mach-shark
mach-shmobile Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into fixes 2012-09-04 21:41:35 -07:00
mach-socfpga ARM: socfpga: initial support for Altera's SOCFPGA platform 2012-07-19 10:39:00 +02:00
mach-spear3xx Merge branch 'dmaengine' of git://git.linaro.org/people/rmk/linux-arm 2012-08-01 16:41:07 -07:00
mach-spear6xx Merge branch 'dmaengine' of git://git.linaro.org/people/rmk/linux-arm 2012-08-01 16:41:07 -07:00
mach-spear13xx
mach-tegra ARM: tegra: more regulator fixes for Harmony 2012-08-09 15:16:40 +02:00
mach-u300 ARM: u300: convert to common clock 2012-07-11 15:36:45 -07:00
mach-ux500 Merge branch 'randconfig/mach' into fixes 2012-08-23 17:30:54 +02:00
mach-versatile ARM: fix mach-versatile/pci.c warning 2012-07-04 17:04:57 +01:00
mach-vexpress ARM: vexpress: Config option for early printk console 2012-07-13 11:48:29 +01:00
mach-vt8500 Merge branch 'for-3.6' of git://gitorious.org/linux-pwm/linux-pwm 2012-07-30 09:22:37 -07:00
mach-w90x900
mach-zynq
mm ARM: mm: rename jump labels in v7_flush_dcache_all function 2012-09-25 11:20:25 +01:00
net
nwfpe
oprofile ARM: 7448/1: perf: remove arm_perf_pmu_ids global enumeration 2012-07-09 17:41:10 +01:00
plat-iop
plat-mxc ARM: SoC fixes 2012-08-02 11:48:20 -07:00
plat-nomadik i2c-nomadik: move header to <linux/platform_data/i2c-nomadik.h> 2012-07-09 11:40:40 +02:00
plat-omap Merge branch 'fixes-wakeupgen' into fixes 2012-09-05 10:06:08 -07:00
plat-orion ARM: Orion: Set eth packet size csum offload limit 2012-08-15 13:58:09 +00:00
plat-pxa Merge branch 'for-3.6' of git://gitorious.org/linux-pwm/linux-pwm 2012-07-30 09:22:37 -07:00
plat-s3c24xx ARM: S3C24XX: Fix s3c2410_dma_enqueue parameters 2012-08-08 09:04:51 +09:00
plat-samsung Merge branch 'v3.6-samsung-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into fixes 2012-08-23 17:03:49 +02:00
plat-spear Merge branch 'dmaengine' of git://git.linaro.org/people/rmk/linux-arm 2012-08-01 16:41:07 -07:00
plat-versatile Merge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-arm 2012-07-27 15:14:26 -07:00
tools
vfp ARM: 7483/1: vfp: only advertise VFPv4 in hwcaps if CONFIG_VFPv3 is enabled 2012-08-11 09:15:57 +01:00
Kconfig Merge branch 'fixes-for-3.6' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping 2012-09-08 16:22:43 -07:00
Kconfig-nommu
Kconfig.debug ARM: 7521/1: Fix semihosting Kconfig text 2012-09-07 20:40:44 +01:00
Makefile ARM: 7513/1: Make sure dtc is built before running it 2012-09-07 20:36:44 +01:00