Buildresult: powerpc-fixes/cell_defconfig/powerpc-gcc5 built on Apr 24 2018, 10:57

kisskb

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Status:	OK
Date/Time:	Apr 24 2018, 10:57
Duration:	0:01:07.203055
Builder:	ka2
Revision:	powerpc/powernv/npu: Do a PID GPU TLB flush when invalidating a large address range (`d0cf9b561ca97d5245bb9e0c4774b7fadd897d67)`
Target:	powerpc-fixes/cell_defconfig/powerpc-gcc5
Branch:	powerpc-fixes
Compiler:	powerpc-gcc5 (powerpc64-linux-gcc (GCC) 5.3.0)
Config:	cell_defconfig (download)
Log:	Download original No warnings found in log. Full Log # git rev-parse -q --verify d0cf9b561ca97d5245bb9e0c4774b7fadd897d67^{commit} d0cf9b561ca97d5245bb9e0c4774b7fadd897d67 already have revision, skipping fetch # git checkout -q -f -B kisskb d0cf9b561ca97d5245bb9e0c4774b7fadd897d67 # git clean -qxdf # < git log -1 # commit d0cf9b561ca97d5245bb9e0c4774b7fadd897d67 # Author: Alistair Popple <alistair@popple.id.au> # Date: Tue Apr 17 19:11:28 2018 +1000 # # powerpc/powernv/npu: Do a PID GPU TLB flush when invalidating a large address range # # The NPU has a limited number of address translation shootdown (ATSD) # registers and the GPU has limited bandwidth to process ATSDs. This can # result in contention of ATSD registers leading to soft lockups on some # threads, particularly when invalidating a large address range in # pnv_npu2_mn_invalidate_range(). # # At some threshold it becomes more efficient to flush the entire GPU # TLB for the given MM context (PID) than individually flushing each # address in the range. This patch will result in ranges greater than # 2MB being converted from 32+ ATSDs into a single ATSD which will flush # the TLB for the given PID on each GPU. # # Fixes: 1ab66d1fbada ("powerpc/powernv: Introduce address translation services for Nvlink2") # Cc: stable@vger.kernel.org # v4.12+ # Signed-off-by: Alistair Popple <alistair@popple.id.au> # Acked-by: Balbir Singh <bsingharora@gmail.com> # Tested-by: Balbir Singh <bsingharora@gmail.com> # Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> # < /opt/cross/kisskb/gcc-5.3.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version # < git log --format=%s --max-count=1 d0cf9b561ca97d5245bb9e0c4774b7fadd897d67 # < make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-fixes_cell_defconfig_powerpc-5.3 CROSS_COMPILE=/opt/cross/kisskb/gcc-5.3.0-nolibc/powerpc64-linux/bin/powerpc64-linux- cell_defconfig # make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-fixes_cell_defconfig_powerpc-5.3 CROSS_COMPILE=/opt/cross/kisskb/gcc-5.3.0-nolibc/powerpc64-linux/bin/powerpc64-linux- Completed OK # rm -rf /kisskb/build/powerpc-fixes_cell_defconfig_powerpc-5.3 # Build took: 0:01:07.203055

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