# git rev-parse -q --verify 41a808618879dc28fb0a94b08db4b55790eb7827^{commit}
41a808618879dc28fb0a94b08db4b55790eb7827
already have revision, skipping fetch
# git checkout -q -f -B kisskb 41a808618879dc28fb0a94b08db4b55790eb7827
# git clean -qxdf
# < git log -1
# commit 41a808618879dc28fb0a94b08db4b55790eb7827
# Author: Alexey Kardashevskiy <aik@ozlabs.ru>
# Date:   Tue May 7 16:25:59 2019 +1000
# 
#     powerpc/pseries/dma: Enable SWIOTLB
#     
#     So far the pseries platforms has always been using IOMMU making
#     SWIOTLB unnecessary. Now we want secure guests which means devices can
#     only access certain areas of guest physical memory; we are going to
#     use SWIOTLB for this purpose.
#     
#     This allows SWIOTLB for pseries. By default there is no change in
#     behavior.
#     
#     This enables SWIOTLB when the "swiotlb" kernel parameter is set to
#     "force".
#     
#     With the SWIOTLB enabled, the kernel creates a directly mapped DMA
#     window (using the usual DDW mechanism) and implements SWIOTLB on top
#     of that.
#     
#     Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
# < /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 41a808618879dc28fb0a94b08db4b55790eb7827
# < make -s -j 80 ARCH=powerpc O=/kisskb/build/powerpc-next_44x_icon_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  44x/icon_defconfig
# make -s -j 80 ARCH=powerpc O=/kisskb/build/powerpc-next_44x_icon_defconfig_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_44x_icon_defconfig_powerpc-gcc5
# Build took: 0:00:41.650952