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arm64: rockchip_linux_defconfig: Disable CPU errata 2441007 (Cortex-A55)

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According to ANDROID commit a9567a35d0 ("ANDROID: arm64: Disable workaround
for CPU errata 2441007 and 2441009"):

CPU errata 2441007 (Cortex-A55) and 2441009 (Cortex-A510) are categorised
as "rare" by Arm and consequently the workaround is not intended to be
deployed in practice as the issue is not expected to occur in real-world
environments.

Given that the cost of the workaround, which issues additional broadcast
TLB invalidation requests, has been shown to impact kswapd significantly
on Pixel devices, disable the workaround following Arm's recommendation.

Signed-off-by: Tao Huang <huangtao@rock-chips.com>
Change-Id: I794d048a094714c1370752bfaa47bee2afd57d53
This commit is contained in:
Tao Huang
2024-05-24 11:08:11 +08:00
parent 9fbcb7ca5b
commit 74ff804eba
1 changed files with 1 additions and 0 deletions
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arch/arm64/configs/rockchip_linux_defconfig
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@@ -33,6 +33,7 @@ CONFIG_ARCH_ROCKCHIP=y
# CONFIG_ARM64_ERRATUM_832075 is not set
# CONFIG_ARM64_ERRATUM_1418040 is not set
# CONFIG_ARM64_ERRATUM_1165522 is not set
# CONFIG_ARM64_ERRATUM_2441007 is not set
# CONFIG_ARM64_ERRATUM_1286807 is not set
# CONFIG_ARM64_ERRATUM_1463225 is not set
# CONFIG_ARM64_ERRATUM_1542419 is not set