Buildresult: powerpc-fixes/arm64-defconfig/arm64-gcc5 built on Jul 28 2022, 23:56

kisskb

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Status:	OK
Date/Time:	Jul 28 2022, 23:56
Duration:	0:03:57.626586
Builder:	ka7
Revision:	drm/amdgpu: Re-enable DCN for 64-bit powerpc (`c653c591789b3acfa4bf6ae45d5af4f330e50a91)`
Target:	powerpc-fixes/arm64-defconfig/arm64-gcc5
Branch:	powerpc-fixes
Compiler:	arm64-gcc5 (aarch64-linux-gcc (GCC) 5.5.0 / GNU ld (GNU Binutils) 2.29.1.20170915)
Config:	defconfig (download)
Log:	Download original No warnings found in log. Full Log # git rev-parse -q --verify c653c591789b3acfa4bf6ae45d5af4f330e50a91^{commit} c653c591789b3acfa4bf6ae45d5af4f330e50a91 already have revision, skipping fetch # git checkout -q -f -B kisskb c653c591789b3acfa4bf6ae45d5af4f330e50a91 # git clean -qxdf # < git log -1 # commit c653c591789b3acfa4bf6ae45d5af4f330e50a91 # Author: Michael Ellerman <mpe@ellerman.id.au> # Date: Mon Jul 25 14:37:29 2022 +1000 # # drm/amdgpu: Re-enable DCN for 64-bit powerpc # # Commit d11219ad53dc ("amdgpu: disable powerpc support for the newer # display engine") disabled the DCN driver for all of powerpc due to # unresolved build failures with some compilers. # # Further digging shows that the build failures only occur with compilers # that default to 64-bit long double. # # Both the ppc64 and ppc64le ABIs define long double to be 128-bits, but # there are compilers in the wild that default to 64-bits. The compilers # provided by the major distros (Fedora, Ubuntu) default to 128-bits and # are not affected by the build failure. # # There is a compiler flag to force 128-bit long double, which may be the # correct long term fix, but as an interim fix only allow building the DCN # driver if long double is 128-bits by default. # # The bisection in commit d11219ad53dc must have gone off the rails at # some point, the build failure occurs all the way back to the original # commit that enabled DCN support on powerpc, at least with some # toolchains. # # Depends-on: d11219ad53dc ("amdgpu: disable powerpc support for the newer display engine") # Fixes: 16a9dea110a6 ("amdgpu: Enable initial DCN support on POWER") # Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> # Acked-by: Alex Deucher <alexander.deucher@amd.com> # Reviewed-by: Dan Horák <dan@danny.cz> # Link: https://gitlab.freedesktop.org/drm/amd/-/issues/2100 # Link: https://lore.kernel.org/r/20220725123918.1903255-1-mpe@ellerman.id.au # < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/aarch64-linux/bin/aarch64-linux-gcc --version # < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/aarch64-linux/bin/aarch64-linux-ld --version # < git log --format=%s --max-count=1 c653c591789b3acfa4bf6ae45d5af4f330e50a91 # < make -s -j 32 ARCH=arm64 O=/kisskb/build/powerpc-fixes_arm64-defconfig_arm64-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/aarch64-linux/bin/aarch64-linux- defconfig # < make -s -j 32 ARCH=arm64 O=/kisskb/build/powerpc-fixes_arm64-defconfig_arm64-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/aarch64-linux/bin/aarch64-linux- help # make -s -j 32 ARCH=arm64 O=/kisskb/build/powerpc-fixes_arm64-defconfig_arm64-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/aarch64-linux/bin/aarch64-linux- olddefconfig # make -s -j 32 ARCH=arm64 O=/kisskb/build/powerpc-fixes_arm64-defconfig_arm64-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/aarch64-linux/bin/aarch64-linux- Completed OK # rm -rf /kisskb/build/powerpc-fixes_arm64-defconfig_arm64-gcc5 # Build took: 0:03:57.626586

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