BOBtheBlinker/android_recovery_motorola_genevn
1
0
Fork 0
Code Issues Pull requests Projects Releases 1 Packages Wiki Activity Actions

hiphi: Switch to dot product CPU variant

Browse source 
* hiphi:/ $ cat /proc/cpuinfo | grep -m 1 Features
   Features: fp asimd evtstrm aes pmull sha1 sha2 crc32
   atomics fphp asimdhp cpuid asimdrdm jscvt fcma lrcpc
   dcpop sha3 sm3 sm4 asimddp sha512 asimdfhm dit uscat
   ilrcpc flagm ssbs sb paca pacg dcpodp flagm2 frint i8mm bti

 * From this, it's evident that our CPU (Snapdragon 8 Gen 1)
   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

Change-Id: I484bb2bcc181c62e29c04bc6e467e5edea8ac0d8
Signed-off-by: 7Soldier <reg.fm4@gmail.com>
This commit is contained in:
Adithya R 2021-01-24 14:02:20 +05:30 committed by 7Soldier
parent cf68f2bd15
commit 3275448d84
1 changed files with 1 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
BoardConfig.mk
View file

@ -28,7 +28,7 @@ AB_OTA_PARTITIONS += \
# Architecture
TARGET_ARCH := arm64
TARGET_ARCH_VARIANT := armv8-a
TARGET_ARCH_VARIANT := armv8-2a-dotprod
TARGET_CPU_ABI := arm64-v8a
TARGET_CPU_ABI2 :=
TARGET_CPU_VARIANT := generic