# git rev-parse -q --verify 04483fc005f81d678e4fe63e36eab4fb39c5277b^{commit} 04483fc005f81d678e4fe63e36eab4fb39c5277b already have revision, skipping fetch # git checkout -q -f -B kisskb 04483fc005f81d678e4fe63e36eab4fb39c5277b # git clean -qxdf # < git log -1 # commit 04483fc005f81d678e4fe63e36eab4fb39c5277b # Author: Nicholas Piggin # Date: Mon Jan 18 22:34:51 2021 +1000 # # powerpc: Always enable queued spinlocks for 64s, disable for others # # Queued spinlocks have shown to have good performance and fairness # properties even on smaller (2 socket) POWER systems. This selects them # automatically for 64s. For other platforms they are de-selected, the # standard spinlock is far simpler and smaller code, and single chips # with a handful of cores is unlikely to show any improvement. # # CONFIG_EXPERT still allows this to be changed, e.g., to help debug # performance or correctness issues. # # Signed-off-by: Nicholas Piggin # Signed-off-by: Michael Ellerman # Link: https://lore.kernel.org/r/20210118123451.1452206-1-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 04483fc005f81d678e4fe63e36eab4fb39c5277b # < make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_83xx_mpc837x_rdb_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- 83xx/mpc837x_rdb_defconfig # < make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_83xx_mpc837x_rdb_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- help # make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_83xx_mpc837x_rdb_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- olddefconfig # make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_83xx_mpc837x_rdb_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- INFO: Uncompressed kernel (size 0x78ad54) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x800000) Image Name: Linux-5.11.0-rc2-80922-g04483fc0 Created: Wed Jan 20 20:12:11 2021 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 3422426 Bytes = 3342.21 KiB = 3.26 MiB Load Address: 00000000 Entry Point: 00000000 Completed OK # rm -rf /kisskb/build/powerpc-next_83xx_mpc837x_rdb_defconfig_powerpc-gcc5 # Build took: 0:00:51.621299