Buildresult: powerpc-fixes/skiroot_defconfig/powerpc-gcc11 built on Jul 25 2022, 18:35

kisskb

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Status:	OK
Date/Time:	Jul 25 2022, 18:35
Duration:	0:01:10.389851
Builder:	ka4
Revision:	drm/amdgpu: Re-enable DCN for 64-bit powerpc (`50d2a40f2caac5bb31627ee20039e74332bd0d8a)`
Target:	powerpc-fixes/skiroot_defconfig/powerpc-gcc11
Branch:	powerpc-fixes
Compiler:	powerpc-gcc11 (powerpc64-linux-gcc (GCC) 11.1.0 / GNU ld (GNU Binutils) 2.36.1)
Config:	skiroot_defconfig (download)
Log:	Download original No warnings found in log. Full Log # git rev-parse -q --verify 50d2a40f2caac5bb31627ee20039e74332bd0d8a^{commit} 50d2a40f2caac5bb31627ee20039e74332bd0d8a already have revision, skipping fetch # git checkout -q -f -B kisskb 50d2a40f2caac5bb31627ee20039e74332bd0d8a # git clean -qxdf # < git log -1 # commit 50d2a40f2caac5bb31627ee20039e74332bd0d8a # 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> # Link: https://gitlab.freedesktop.org/drm/amd/-/issues/2100 # < /opt/cross/kisskb/korg/gcc-11.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version # < /opt/cross/kisskb/korg/gcc-11.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version # < git log --format=%s --max-count=1 50d2a40f2caac5bb31627ee20039e74332bd0d8a # < make -s -j 40 ARCH=powerpc O=/kisskb/build/powerpc-fixes_skiroot_defconfig_powerpc-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux- skiroot_defconfig # < make -s -j 40 ARCH=powerpc O=/kisskb/build/powerpc-fixes_skiroot_defconfig_powerpc-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux- help # make -s -j 40 ARCH=powerpc O=/kisskb/build/powerpc-fixes_skiroot_defconfig_powerpc-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux- olddefconfig # make -s -j 40 ARCH=powerpc O=/kisskb/build/powerpc-fixes_skiroot_defconfig_powerpc-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux- Completed OK # rm -rf /kisskb/build/powerpc-fixes_skiroot_defconfig_powerpc-gcc11 # Build took: 0:01:10.389851

© Michael Ellerman 2006-2018.