Buildresult: powerpc-fixes/mpc885_ads_defconfig/powerpc-gcc5 built on Apr 24 2018, 11:01
kisskb
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Status:
OK
Date/Time:
Apr 24 2018, 11:01
Duration:
0:00:34.822940
Builder:
ka2
Revision:
powerpc/powernv/npu: Do a PID GPU TLB flush when invalidating a large address range (
d0cf9b561ca97d5245bb9e0c4774b7fadd897d67)
Target:
powerpc-fixes/mpc885_ads_defconfig/powerpc-gcc5
Branch:
powerpc-fixes
Compiler:
powerpc-gcc5
(powerpc64-linux-gcc (GCC) 5.3.0)
Config:
mpc885_ads_defconfig
(
download
)
Log:
Download original
Possible warnings (1)
arch/powerpc/boot/mpc8xx.c:27:26: warning: variable 'div' set but not used [-Wunused-but-set-variable]
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_mpc885_ads_defconfig_powerpc-5.3 CROSS_COMPILE=/opt/cross/kisskb/gcc-5.3.0-nolibc/powerpc64-linux/bin/powerpc64-linux- mpc885_ads_defconfig # make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-fixes_mpc885_ads_defconfig_powerpc-5.3 CROSS_COMPILE=/opt/cross/kisskb/gcc-5.3.0-nolibc/powerpc64-linux/bin/powerpc64-linux- /kisskb/src/arch/powerpc/boot/mpc8xx.c: In function 'mpc885_get_clock': /kisskb/src/arch/powerpc/boot/mpc8xx.c:27:26: warning: variable 'div' set but not used [-Wunused-but-set-variable] int mfi, mfn, mfd, pdf, div; ^ Image Name: Linux-4.17.0-rc2-gd0cf9b5 Created: Tue Apr 24 11:01:50 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 1826613 Bytes = 1783.80 kB = 1.74 MB Load Address: 00400000 Entry Point: 004001a8 Completed OK # rm -rf /kisskb/build/powerpc-fixes_mpc885_ads_defconfig_powerpc-5.3 # Build took: 0:00:34.822940
© Michael Ellerman 2006-2018.