# git rev-parse -q --verify abd19d9b221d5f22c0f53ca3bc7366d824e7462f^{commit}
abd19d9b221d5f22c0f53ca3bc7366d824e7462f
already have revision, skipping fetch
# git checkout -q -f -B kisskb abd19d9b221d5f22c0f53ca3bc7366d824e7462f
# git clean -qxdf
# < git log -1
# commit abd19d9b221d5f22c0f53ca3bc7366d824e7462f
# Author: Alexey Kardashevskiy <aik@ozlabs.ru>
# Date:   Tue Sep 11 15:38:05 2018 +1000
# 
#     powerpc/powernv/ioda2: Reduce upper limit for DMA window size (retry)
#     
#     We use PHB in mode1 which uses bit 59 to select a correct DMA window.
#     However there is mode2 which uses bits 59:55 and allows up to 32 DMA
#     windows per a PE.
#     
#     Even though documentation does not clearly specify that, it seems that
#     the actual hardware does not support bits 59:55 even in mode1, in other
#     words we can create a window as big as 1<<58 but DMA simply won't work.
#     
#     This reduces the upper limit from 59 to 55 bits to let the userspace know
#     about the hardware limits.
#     
#     Fixes: ce57c6610cc2 "Merge branch 'topic/ppc-kvm' into next"
#     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
# < git log --format=%s --max-count=1 abd19d9b221d5f22c0f53ca3bc7366d824e7462f
# < make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-fixes_44x_katmai_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  44x/katmai_defconfig
# make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-fixes_44x_katmai_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  
arch/powerpc/boot/katmai.dtb: Warning (pci_bridge): /plb/pciex@d00000000: node name is not "pci" or "pcie"
arch/powerpc/boot/katmai.dtb: Warning (pci_bridge): /plb/pciex@d20000000: node name is not "pci" or "pcie"
arch/powerpc/boot/katmai.dtb: Warning (pci_bridge): /plb/pciex@d40000000: node name is not "pci" or "pcie"
arch/powerpc/boot/katmai.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge'
INFO: Uncompressed kernel (size 0x455810) overlaps the address of the wrapper(0x400000)
INFO: Fixing the link_address of wrapper to (0x500000)
Image Name:   Linux-4.19.0-rc3-gabd19d9b221d5
Created:      Thu Sep 20 01:22:51 2018
Image Type:   PowerPC Linux Kernel Image (gzip compressed)
Data Size:    2212982 Bytes = 2161.12 KiB = 2.11 MiB
Load Address: 00500000
Entry Point:  005010ec
Completed OK
# rm -rf /kisskb/build/powerpc-fixes_44x_katmai_defconfig_powerpc-gcc5
# Build took: 0:00:16.311524