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Benjamin Gaignard 779eb41ccb ARM: 8862/1: errata: 814220-B-Cache maintenance by set/way operations can execute out of order 
The v7 ARM states that all cache and branch predictor maintenance operations
that do not specify an address execute, relative to each other, in program
order. However, because of this erratum, an L2 set/way cache maintenance
operation can overtake an L1 set/way cache maintenance operation, this would
cause the data corruption.

This ERRATA affected the Cortex-A7 and present in r0p2, r0p3, r0p4, r0p5.

This patch is the SW workaround by adding a DSB before changing cache levels as
the ARM ERRATA: ARM/MP: 814220 told in the ARM ERRATA documentation.

Signed-off-by: Jason Liu <r64343@freescale.com>
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
 		2019-06-21 09:06:06 +01:00
..
boot treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 22 2019-05-21 11:52:38 +02:00
common treewide: replace #include <asm/sizes.h> with #include <linux/sizes.h> 2019-05-14 19:52:52 -07:00
configs ARM: 8864/1: Add workaround for I-Cache line size mismatch between CPU cores 2019-06-20 22:29:58 +01:00
crypto crypto: shash - remove shash_desc::flags 2019-04-25 15:38:12 +08:00
include ARM: 8864/1: Add workaround for I-Cache line size mismatch between CPU cores 2019-06-20 22:29:58 +01:00
kernel ARM: 8864/1: Add workaround for I-Cache line size mismatch between CPU cores 2019-06-20 22:29:58 +01:00
kvm KVM: arm/arm64: Move cc/it checks under hyp's Makefile to avoid instrumentation 2019-05-24 14:53:20 +01:00
lib
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mach-actions treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
mach-alpine treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
mach-artpec treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
mach-asm9260 treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
mach-aspeed treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
mach-at91 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 4 2019-05-21 11:28:40 +02:00
mach-axxia
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mach-bcm
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mach-berlin treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
mach-clps711x
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mach-cns3xxx
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mach-davinci treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61 2019-05-24 17:36:45 +02:00
mach-digicolor treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
mach-dove treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
mach-ebsa110 treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
mach-efm32 treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
mach-ep93xx treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
mach-exynos ARM: exynos: Set MCPM as mandatory for Exynos542x/5800 SoCs 2019-04-10 17:58:22 +02:00
mach-footbridge treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
mach-gemini treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
mach-highbank treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
mach-hisi treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
mach-imx treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 102 2019-05-24 17:39:00 +02:00
mach-integrator treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
mach-iop13xx treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
mach-iop32x treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
mach-iop33x treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
mach-ixp4xx treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61 2019-05-24 17:36:45 +02:00
mach-keystone treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
mach-ks8695 treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
mach-lpc18xx treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
mach-lpc32xx treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
mach-mediatek treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
mach-meson treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
mach-milbeaut treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
mach-mmp treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
mach-moxart treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
mach-mv78xx0 treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
mach-mvebu treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
mach-mxs treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
mach-netx treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
mach-nomadik treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
mach-npcm treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
mach-nspire treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
mach-omap1 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 1 2019-05-21 11:28:39 +02:00
mach-omap2 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 105 2019-05-24 17:39:00 +02:00
mach-orion5x treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
mach-oxnas treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
mach-picoxcell treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
mach-prima2 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 4 2019-05-21 11:28:40 +02:00
mach-pxa treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
mach-qcom treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
mach-rda treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
mach-realview treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
mach-rockchip treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
mach-rpc treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
mach-s3c24xx treewide: replace #include <asm/sizes.h> with #include <linux/sizes.h> 2019-05-14 19:52:52 -07:00
mach-s3c64xx ARM: s3c64xx: Tidy up handling of regulator GPIO lookups 2019-04-14 12:53:03 +02:00
mach-s5pv210
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mach-sa1100 treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
mach-shmobile
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mach-socfpga treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13 2019-05-21 11:28:45 +02:00
mach-spear treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
mach-sti treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
mach-stm32 treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
mach-sunxi treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
mach-tango
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mach-tegra treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 1 2019-05-21 11:28:39 +02:00
mach-u300 treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
mach-uniphier
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mach-ux500 treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
mach-versatile treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
mach-vexpress treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
mach-vt8500 treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
mach-w90x900 treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
mach-zx treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
mach-zynq treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13 2019-05-21 11:28:45 +02:00
mm ARM: 8862/1: errata: 814220-B-Cache maintenance by set/way operations can execute out of order 2019-06-21 09:06:06 +01:00
net treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
nwfpe treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61 2019-05-24 17:36:45 +02:00
oprofile
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plat-iop ARM: iop: don't use using 64-bit DMA masks 2019-04-07 15:19:49 -07:00
plat-omap treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
plat-orion treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
plat-pxa treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
plat-samsung
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plat-versatile treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
probes treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
tools uapi: Wire up the mount API syscalls on non-x86 arches [ver #2] 2019-05-16 12:23:45 -04:00
vdso ARM: 8860/1: VDSO: Drop implicit common-page-size linker flag 2019-06-20 22:29:54 +01:00
vfp treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
xen treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13 2019-05-21 11:28:45 +02:00
Kconfig ARM: 8862/1: errata: 814220-B-Cache maintenance by set/way operations can execute out of order 2019-06-21 09:06:06 +01:00
Kconfig-nommu
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Kconfig.debug ARM: SoC platform updates 2019-05-16 08:31:32 -07:00
Makefile ARM development updates: 2019-05-16 09:41:54 -07:00