# git rev-parse -q --verify abe22c0dd0c554ed01dd6bb9ec849797585e91aa^{commit} abe22c0dd0c554ed01dd6bb9ec849797585e91aa already have revision, skipping fetch # git checkout -q -f -B kisskb abe22c0dd0c554ed01dd6bb9ec849797585e91aa # git clean -qxdf # < git log -1 # commit abe22c0dd0c554ed01dd6bb9ec849797585e91aa # Author: Russell Currey # Date: Tue Feb 23 17:02:27 2021 +1000 # # selftests/powerpc: Fix L1D flushing tests for Power10 # # The rfi_flush and entry_flush selftests work by using the PM_LD_MISS_L1 # perf event to count L1D misses. The value of this event has changed # over time: # # - Power7 uses 0x400f0 # - Power8 and Power9 use both 0x400f0 and 0x3e054 # - Power10 uses only 0x3e054 # # Rather than relying on raw values, configure perf to count L1D read # misses in the most explicit way available. # # This fixes the selftests to work on systems without 0x400f0 as # PM_LD_MISS_L1, and should change no behaviour for systems that the tests # already worked on. # # The only potential downside is that referring to a specific perf event # requires PMU support implemented in the kernel for that platform. # # Signed-off-by: Russell Currey # Acked-by: Daniel Axtens # Signed-off-by: Michael Ellerman # Link: https://lore.kernel.org/r/20210223070227.2916871-1-ruscur@russell.cc # < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version # < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version # < git log --format=%s --max-count=1 abe22c0dd0c554ed01dd6bb9ec849797585e91aa # < make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_85xx_ksi8560_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- 85xx/ksi8560_defconfig # < make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_85xx_ksi8560_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- help # make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_85xx_ksi8560_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- olddefconfig # make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_85xx_ksi8560_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- INFO: Uncompressed kernel (size 0x53f8f0) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x600000) INFO: Uncompressed kernel (size 0x52f338) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x600000) Image Name: Linux-5.11.0-gabe22c0dd0c5 Created: Fri Feb 26 02:53:06 2021 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 2683632 Bytes = 2620.73 KiB = 2.56 MiB Load Address: 00000000 Entry Point: 00000000 Image Name: Linux-5.11.0-gabe22c0dd0c5 Created: Fri Feb 26 02:53:06 2021 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 2713148 Bytes = 2649.56 KiB = 2.59 MiB Load Address: 00600000 Entry Point: 00600314 Completed OK # rm -rf /kisskb/build/powerpc-next_85xx_ksi8560_defconfig_powerpc-gcc5 # Build took: 0:00:43.699152