# git rev-parse -q --verify 8f0c636b05429d3a83993074c35fce62eb9856ef^{commit} 8f0c636b05429d3a83993074c35fce62eb9856ef already have revision, skipping fetch # git checkout -q -f -B kisskb 8f0c636b05429d3a83993074c35fce62eb9856ef # git clean -qxdf # < git log -1 # commit 8f0c636b05429d3a83993074c35fce62eb9856ef # Author: Aneesh Kumar K.V # Date: Thu Sep 20 14:03:58 2018 +0530 # # powerpc/mm: Increase the max addressable memory to 2PB # # Currently we limit the max addressable memory to 128TB. This patch increase the # limit to 2PB. We can have devices like nvdimm which adds memory above 512TB # limit. # # We still don't support regular system ram above 512TB. One of the challenge with # that is the percpu allocator, that allocates per node memory and use the max # distance between them as the percpu offsets. This means with large gap in # address space ( system ram above 1PB) we will run out of vmalloc space to map # the percpu allocation. # # In order to support addressable memory above 512TB, kernel should be able to # linear map this range. To do that with hash translation we now add 4 context # to kernel linear map region. Our per context addressable range is 512TB. We # still keep VMALLOC and VMEMMAP region to old size. SLB miss handlers is updated # to validate these limit. # # We also limit this update to SPARSEMEM_VMEMMAP and SPARSEMEM_EXTREME # # Signed-off-by: Aneesh Kumar K.V # Signed-off-by: Michael Ellerman # < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version # < git log --format=%s --max-count=1 8f0c636b05429d3a83993074c35fce62eb9856ef # < make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_mpc5200_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- mpc5200_defconfig # make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_mpc5200_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- /kisskb/src/arch/powerpc/platforms/52xx/lite5200_sleep.S: Assembler messages: /kisskb/src/arch/powerpc/platforms/52xx/lite5200_sleep.S:184: Warning: invalid register expression INFO: Uncompressed kernel (size 0x6e46e8) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x700000) INFO: Uncompressed kernel (size 0x6e46e8) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x700000) INFO: Uncompressed kernel (size 0x6e46e8) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x700000) INFO: Uncompressed kernel (size 0x6d3fd0) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x700000) Image Name: Linux-4.19.0-rc3-g8f0c636b05429 Created: Sun Oct 14 01:17:08 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 3475322 Bytes = 3393.87 KiB = 3.31 MiB Load Address: 00000000 Entry Point: 00000000 Image Name: Linux-4.19.0-rc3-g8f0c636b05429 Created: Sun Oct 14 01:17:08 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 3502501 Bytes = 3420.41 KiB = 3.34 MiB Load Address: 00700000 Entry Point: 00700290 Image Name: Linux-4.19.0-rc3-g8f0c636b05429 Created: Sun Oct 14 01:17:08 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 3502538 Bytes = 3420.45 KiB = 3.34 MiB Load Address: 00700000 Entry Point: 00700290 Image Name: Linux-4.19.0-rc3-g8f0c636b05429 Created: Sun Oct 14 01:17:08 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 3502461 Bytes = 3420.37 KiB = 3.34 MiB Load Address: 00700000 Entry Point: 00700290 Completed OK # rm -rf /kisskb/build/powerpc-next_mpc5200_defconfig_powerpc-gcc5 # Build took: 0:01:01.607590