Evolution-x-devices/device_xiaomi_sm6150-common
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sm6150-common: Set arch variant to armv8-2a-dotprod

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karna:/ $ cat /proc/cpuinfo | grep -m 1 Features
Features	: fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics fphp asimdhp cpuid asimdrdm lrcpc dcpop asimddp

From this, it's evident that our CPU (Snapdragon 732G/Kryo 470) supports
all the features of ARMv8.2-DotProd [1]. Moreover AOSP sets this arch
variant in their generic cortex-a55 ART target as well [2]. This should
unlock some optimizations in different code paths.

[1]: https://en.wikichip.org/wiki/arm/armv8#ARMv8_Extensions_and_Processor_Features
[2]: https://android.googlesource.com/device/generic/art/+/refs/heads/master/armv8_cortex_a55/BoardConfig.mk#23

Signed-off-by: Adithya R <gh0strider.2k18.reborn@gmail.com>
Change-Id: I484bb2bcc181c62e29c04bc6e467e5edea8ac0d8
This commit is contained in:
Adithya R
2021-01-24 14:02:20 +05:30
committed by basamaryan
parent 14c17f47af
commit 4229944346
1 changed files with 1 additions and 1 deletions
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2
BoardConfigCommon.mk
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@@ -25,7 +25,7 @@ include vendor/xiaomi/sm6150-common/BoardConfigVendor.mk
# Architecture
TARGET_ARCH := arm64
TARGET_ARCH_VARIANT := armv8-2a
TARGET_ARCH_VARIANT := armv8-2a-dotprod
TARGET_CPU_ABI := arm64-v8a
TARGET_CPU_VARIANT := cortex-a55