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4348810a24
linux_dsm_epyc7002/arch/arm
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Russell King 4348810a24 ARM: btc: avoid invalidating the branch target cache on kernel TLB maintanence 
Kernel space needs very little in the way of BTC maintanence as most
mappings which are created and destroyed are non-executable, and so
could never enter the instruction stream.

The case which does warrant BTC maintanence is when a module is loaded.
This creates a new executable mapping, but at that point the pages have
not been initialized with code and data, so at that point they contain
unpredictable information.  Invalidating the BTC at this stage serves
little useful purpose.

Before we execute module code, we call flush_icache_range(), which deals
with the BTC maintanence requirements.  This ensures that we have a BTC
maintanence operation before we execute code via the newly created
mapping.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-07-19 11:44:06 +01:00
..
boot ARM: 6954/1: zImage: fix Thumb2 breakage 2011-06-09 10:15:06 +01:00
common Merge branch 'for-rmk' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into devel-stable 2011-05-25 21:47:48 +01:00
configs rtc: fix build warnings in defconfigs 2011-06-15 20:04:02 -07:00
include/asm ARM: btc: avoid invalidating the branch target cache on kernel TLB maintanence 2011-07-19 11:44:06 +01:00
kernel ARM: extend Code: line by one 16-bit quantity for Thumb instructions 2011-06-09 23:55:45 +01:00
lib ARM: 6945/1: Add unwinding support for division functions 2011-05-27 22:56:53 +01:00
mach-at91 at91: drop at572d940hf support 2011-05-25 23:04:35 +08:00
mach-bcmring ARM: bcmring: convert to use sp804 clockevents 2011-05-23 18:04:54 +01:00
mach-clps711x arm: Fold irq_set_chip/irq_set_handler 2011-03-29 14:47:58 +02:00
mach-cns3xxx
mach-davinci davinci: make PCM platform devices static 2011-06-08 14:41:37 +05:30
mach-dove ARM: dove: Consolidate mpp code with platform mpp. 2011-05-16 15:49:31 -04:00
mach-ebsa110 arm: Fold irq_set_chip/irq_set_handler 2011-03-29 14:47:58 +02:00
mach-ep93xx ep93xx: set DMA masks for the ep93xx_eth 2011-06-11 16:25:15 -07:00
mach-exynos4 ARM: EXYNOS4: Remove compiler warning on exynos4_pwm4_resume 2011-06-03 16:22:01 -07:00
mach-footbridge ARM: footbridge: fix clock event support 2011-06-11 00:46:17 +01:00
mach-gemini Merge git://git.infradead.org/mtd-2.6 2011-05-27 20:06:53 -07:00
mach-h720x ARM: Replace platform definition of ISA_DMA_THRESHOLD/MAX_DMA_ADDRESS 2011-05-12 08:36:49 +01:00
mach-imx ARM: imx: move mx3 support to mach-imx 2011-05-19 13:11:38 +02:00
mach-integrator Merge branches 'consolidate-clksrc', 'consolidate-flash', 'consolidate-generic', 'consolidate-smp', 'consolidate-stmp' and 'consolidate-zones' into consolidate 2011-05-23 18:05:10 +01:00
mach-iop13xx Fix common misspellings 2011-03-31 11:26:23 -03:00
mach-iop32x ARM: zImage: remove the static qualifier from global data variables 2011-05-07 00:08:02 -04:00
mach-iop33x ARM: zImage: remove the static qualifier from global data variables 2011-05-07 00:08:02 -04:00
mach-ixp4xx Merge git://git.infradead.org/mtd-2.6 2011-05-27 20:06:53 -07:00
mach-ixp23xx arm: Fold irq_set_chip/irq_set_handler 2011-03-29 14:47:58 +02:00
mach-ixp2000 arm: Fold irq_set_chip/irq_set_handler 2011-03-29 14:47:58 +02:00
mach-kirkwood ARM: orion: Refactor the MPP code common in the orion platform 2011-05-16 15:25:54 -04:00
mach-ks8695 arm: Fold irq_set_chip/irq_set_handler 2011-03-29 14:47:58 +02:00
mach-l7200/include/mach
mach-loki ARM: orion: Consolidate ethernet platform data 2011-05-16 15:06:01 -04:00
mach-lpc32xx clocksource: convert ARM 32-bit up counting clocksources 2011-05-23 18:04:51 +01:00
mach-mmp Merge branch 'zImage_fixes' of git://git.linaro.org/people/nico/linux into devel-stable 2011-05-07 08:34:02 +01:00
mach-msm Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm 2011-05-23 15:15:27 -07:00
mach-mv78xx0 ARM: orion: Refactor the MPP code common in the orion platform 2011-05-16 15:25:54 -04:00
mach-mx5 ARM: mxc: don't allow to compile together i.MX51 and i.MX53 2011-05-19 13:11:30 +02:00
mach-mxs arm: mxs: include asm/processor.h for cpu_relax() 2011-06-06 09:50:04 +02:00
mach-netx ARM: 6827/1: mach-netx: delete hardcoded periphid 2011-05-26 10:33:34 +01:00
mach-nomadik gpio: move Nomadik GPIO driver to drivers/gpio 2011-05-26 17:30:03 -06:00
mach-nuc93x ARM: zImage: remove the static qualifier from global data variables 2011-05-07 00:08:02 -04:00
mach-omap1 arch/arm/mach-omap1/dma.c: Invert calls to platform_device_put and platform_device_del 2011-06-01 02:25:04 -07:00
mach-omap2 ARM: OMAP4: MMC: increase delay for pbias 2011-06-01 04:48:15 -07:00
mach-orion5x ARM: orion5x: Refactor mpp code to use common orion platform mpp. 2011-05-16 15:42:59 -04:00
mach-pnx4008 arm: Cleanup the irq namespace 2011-03-29 14:47:57 +02:00
mach-pxa Merge git://git.infradead.org/mtd-2.6 2011-05-27 20:06:53 -07:00
mach-realview Merge branches 'consolidate-clksrc', 'consolidate-flash', 'consolidate-generic', 'consolidate-smp', 'consolidate-stmp' and 'consolidate-zones' into consolidate 2011-05-23 18:05:10 +01:00
mach-rpc ARM: zImage: remove the static qualifier from global data variables 2011-05-07 00:08:02 -04:00
mach-s3c24a0/include/mach
mach-s3c64xx Merge branch 'for-rmk' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into devel-stable 2011-05-25 21:47:48 +01:00
mach-s3c2400
mach-s3c2410 ARM: S3C2410: remove the now empty mach-s3c2410/irq.c 2011-06-03 18:36:53 -07:00
mach-s3c2412 ARM / Samsung: Use struct syscore_ops for "core" power management 2011-04-24 19:16:10 +02:00
mach-s3c2416 Merge branch 'usb-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6 2011-05-23 12:33:02 -07:00
mach-s3c2440 ARM / Samsung: Use struct syscore_ops for "core" power management 2011-04-24 19:16:10 +02:00
mach-s3c2443 arm: Fold irq_set_chip/irq_set_handler 2011-03-29 14:47:58 +02:00
mach-s5p64x0 ARM: zImage: remove the static qualifier from global data variables 2011-05-07 00:08:02 -04:00
mach-s5pc100 gpio: Move the s5pc100 GPIO to drivers/gpio 2011-05-26 17:33:41 -06:00
mach-s5pv210 ARM: S5PV210: Fix possible null pointer dereference 2011-06-01 15:06:35 -07:00
mach-sa1100 Merge branches 'consolidate-clksrc', 'consolidate-flash', 'consolidate-generic', 'consolidate-smp', 'consolidate-stmp' and 'consolidate-zones' into consolidate 2011-05-23 18:05:10 +01:00
mach-shark ARM: use ARM_DMA_ZONE_SIZE to adjust the zone sizes 2011-05-12 08:36:53 +01:00
mach-shmobile ARM: mach-shmobile: mackerel: tidyup usbhs driver settings 2011-06-15 16:03:17 +09:00
mach-spear3xx ARM: 6931/1: SPEAr3xx: Rework KConfig to allow all boards to be compiled in 2011-05-20 22:34:25 +01:00
mach-spear6xx ARM: 6934/1: SPEAr6xx: Rework Kconfig for single image solution 2011-05-20 22:34:25 +01:00
mach-tcc8k clocksource: convert ARM 32-bit up counting clocksources 2011-05-23 18:04:51 +01:00
mach-tegra ARM: Tegra: Harmony: Fix conflicting GPIO numbering 2011-06-04 15:51:52 -07:00
mach-u300 ARM: 6949/2: mach-u300: fix compilaton warning in IO accessors 2011-06-09 10:15:06 +01:00
mach-ux500 gpio/nomadik: fix sleepmode for elder Nomadik 2011-06-09 15:03:38 -06:00
mach-versatile Merge branches 'consolidate-clksrc', 'consolidate-flash', 'consolidate-generic', 'consolidate-smp', 'consolidate-stmp' and 'consolidate-zones' into consolidate 2011-05-23 18:05:10 +01:00
mach-vexpress ARM: 6946/1: vexpress: move v2m clock init to init_early 2011-06-06 10:56:09 +01:00
mach-vt8500 arm: Fold irq_set_chip/irq_set_handler 2011-03-29 14:47:58 +02:00
mach-w90x900 Merge branch 'devel-stable' into for-linus 2011-05-23 19:28:04 +01:00
mm ARM: btc: avoid invalidating the branch target cache on kernel TLB maintanence 2011-07-19 11:44:06 +01:00
nwfpe
oprofile
plat-iop ARM: Remove duplicate linux/sched.h include from arch/arm/plat-iop/time.c 2011-04-10 17:01:02 +02:00
plat-mxc ARM: mx51/sdma: Check the chip revision in run-time 2011-06-06 09:50:04 +02:00
plat-nomadik gpio/nomadik: fix sleepmode for elder Nomadik 2011-06-09 15:03:38 -06:00
plat-omap ARM: OMAP4: MMC: no regulator off during probe for eMMC 2011-06-01 02:25:04 -07:00
plat-orion Merge branch 'devel-stable' into for-linus 2011-05-23 19:28:04 +01:00
plat-pxa ARM / PXA: Use struct syscore_ops for "core" power management 2011-04-24 19:16:09 +02:00
plat-s3c24xx ARM: S3C24XX: Move s3c24xx_irq_syscore_ops to plat-s3c24xx/irq.c 2011-06-03 18:36:52 -07:00
plat-s5p ARM: SAMSUNG: Remove unused onenand plat functions 2011-06-03 16:45:02 -07:00
plat-samsung ARM: SAMSUNG: Remove unused onenand plat functions 2011-06-03 16:45:02 -07:00
plat-spear Merge branches 'consolidate', 'ep93xx', 'fixes', 'misc', 'mmci', 'remove' and 'spear' into for-linus 2011-05-23 19:27:40 +01:00
plat-tcc
plat-versatile ARM: consolidate SMP cross call implementation 2011-05-23 16:53:17 +01:00
tools ARM: Update mach-types 2011-05-14 21:36:55 +01:00
vfp ARM: Use struct syscore_ops instead of sysdevs for PM in common code 2011-04-24 19:16:08 +02:00
Kconfig Merge branches 'devel', 'devel-stable' and 'fixes' into for-linus 2011-05-27 22:59:57 +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 'for-rmk' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into devel-stable 2011-05-25 21:47:48 +01:00