# git rev-parse -q --verify 6391d2478e2f6fc8db2c78f62b13085fd5dfb10e^{commit}
6391d2478e2f6fc8db2c78f62b13085fd5dfb10e
already have revision, skipping fetch
# git checkout -q -f -B kisskb 6391d2478e2f6fc8db2c78f62b13085fd5dfb10e
# git clean -qxdf
# < git log -1
# commit 6391d2478e2f6fc8db2c78f62b13085fd5dfb10e
# Author: Nicholas Piggin <npiggin@gmail.com>
# Date:   Wed May 24 16:08:21 2023 +1000
# 
#     powerpc/64s/radix: combine final TLB flush and lazy tlb mm shootdown IPIs
#     
#     This performs lazy tlb mm shootdown when doing the exit TLB flush when
#     all mm users go away and user mappings are removed, which avoids having
#     to do the lazy tlb mm shootdown IPIs on the final mmput when all kernel
#     references disappear.
#     
#     powerpc/64s uses a broadcast TLBIE for the exit TLB flush if remote CPUs
#     need to be invalidated (unless TLBIE is disabled), so this doesn't
#     necessarily save IPIs but it does avoid a broadcast TLBIE which is quite
#     expensive.
#     
#     Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
#     [mpe: Squash in preempt_disable/enable() fix from Nick]
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
#     Link: https://msgid.link/20230524060821.148015-5-npiggin@gmail.com
# < /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 6391d2478e2f6fc8db2c78f62b13085fd5dfb10e
# make -s -j 160 ARCH=powerpc O=/kisskb/build/powerpc-next_pmac32_defconfig+KVM_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  pmac32_defconfig
# Added to kconfig CONFIG_VIRTUALIZATION=y
# Added to kconfig CONFIG_KVM=y
# Added to kconfig CONFIG_KVM_BOOK3S_32=m
# Added to kconfig 
# < make -s -j 160 ARCH=powerpc O=/kisskb/build/powerpc-next_pmac32_defconfig+KVM_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  help
# make -s -j 160 ARCH=powerpc O=/kisskb/build/powerpc-next_pmac32_defconfig+KVM_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  olddefconfig
.config:4451:warning: override: reassigning to symbol VIRTUALIZATION
# make -s -j 160 ARCH=powerpc O=/kisskb/build/powerpc-next_pmac32_defconfig+KVM_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  
Completed OK
# rm -rf /kisskb/build/powerpc-next_pmac32_defconfig+KVM_powerpc-gcc5
# Build took: 0:00:59.587212