# git rev-parse -q --verify 4c6be9192dbbe4aff7d42057d7864df8a5f3baf2^{commit} 4c6be9192dbbe4aff7d42057d7864df8a5f3baf2 already have revision, skipping fetch # git checkout -q -f -B kisskb 4c6be9192dbbe4aff7d42057d7864df8a5f3baf2 # git clean -qxdf # < git log -1 # commit 4c6be9192dbbe4aff7d42057d7864df8a5f3baf2 # Author: Nicholas Piggin # Date: Fri Sep 13 22:07:01 2019 +1000 # # powerpc/64s: system call support for scv/rfscv instructions # # Add support for the scv instruction on POWER9 and later CPUs. # # For now this implements the zeroth scv vector 'scv 0', as identical # to 'sc' system calls, with the exception that lr is not preserved, and # it is 64-bit only. There may yet be changes made to this ABI, so it's # for testing only. # # rfscv is implemented to return from scv type system calls. It can not # be used to return from sc system calls because those are defined to # preserve lr. # # In a comparison of getpid syscall, the test program had scv taking # about 3 more cycles in user mode (92 vs 89 for sc), due to lr handling. # getpid syscall throughput on POWER9 is improved by 33%, mostly due to # reducing mtmsr and mtspr. # # Signed-off-by: Nicholas Piggin # < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version # < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version # < git log --format=%s --max-count=1 4c6be9192dbbe4aff7d42057d7864df8a5f3baf2 # < make -s -j 24 ARCH=powerpc O=/kisskb/build/npiggin_ppc6xx_defconfig_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux- ppc6xx_defconfig # < make -s -j 24 ARCH=powerpc O=/kisskb/build/npiggin_ppc6xx_defconfig_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux- help # make -s -j 24 ARCH=powerpc O=/kisskb/build/npiggin_ppc6xx_defconfig_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux- olddefconfig # make -s -j 24 ARCH=powerpc O=/kisskb/build/npiggin_ppc6xx_defconfig_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux- In file included from /kisskb/src/sound/ppc/pmac.h:12:0, from /kisskb/src/sound/ppc/awacs.c:16: /kisskb/src/sound/ppc/awacs.c: In function 'snd_pmac_awacs_init': /kisskb/src/include/sound/control.h:218:2: warning: 'speaker_vol' may be used uninitialized in this function [-Wmaybe-uninitialized] return _snd_ctl_add_slave(master, slave, 0); ^ /kisskb/src/sound/ppc/awacs.c:873:36: note: 'speaker_vol' was declared here struct snd_kcontrol *master_vol, *speaker_vol; ^ /kisskb/src/drivers/gpu/drm/drm_dp_mst_topology.c: In function 'drm_dp_mst_dsc_aux_for_port': /kisskb/src/drivers/gpu/drm/drm_dp_mst_topology.c:5400:9: warning: missing braces around initializer [-Wmissing-braces] struct drm_dp_desc desc = { 0 }; ^ /kisskb/src/drivers/gpu/drm/drm_dp_mst_topology.c:5400:9: warning: (near initialization for 'desc.ident') [-Wmissing-braces] INFO: Uncompressed kernel (size 0xad2734) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xad2734) overlaps the address of the wrapper(0x400000) INFO: Uncompressed kernel (size 0xad2734) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xad2734) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xad2734) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xad2734) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xad2734) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xad2734) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xac204c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xac204c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xad2734) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xad2734) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) Image Name: Linux-5.6.0-rc2+ Created: Wed May 13 19:40:02 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5194230 Bytes = 5072.49 KiB = 4.95 MiB Load Address: 00000000 Entry Point: 00000000 Image Name: Linux-5.6.0-rc2+ Created: Wed May 13 19:40:04 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5226683 Bytes = 5104.18 KiB = 4.98 MiB Load Address: 00b00000 Entry Point: 00b00294 Image Name: Linux-5.6.0-rc2+ Created: Wed May 13 19:40:05 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5226878 Bytes = 5104.37 KiB = 4.98 MiB Load Address: 00b00000 Entry Point: 00b00294 Image Name: Linux-5.6.0-rc2+ Created: Wed May 13 19:40:04 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5227513 Bytes = 5104.99 KiB = 4.99 MiB Load Address: 00b00000 Entry Point: 00b00294 Image Name: Linux-5.6.0-rc2+ Created: Wed May 13 19:40:05 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5225975 Bytes = 5103.49 KiB = 4.98 MiB Load Address: 00b00000 Entry Point: 00b00294 Image Name: Linux-5.6.0-rc2+ Created: Wed May 13 19:40:04 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5226693 Bytes = 5104.19 KiB = 4.98 MiB Load Address: 00b00000 Entry Point: 00b00894 Image Name: Linux-5.6.0-rc2+ Created: Wed May 13 19:40:04 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5227521 Bytes = 5105.00 KiB = 4.99 MiB Load Address: 00b00000 Entry Point: 00b00294 Image Name: Linux-5.6.0-rc2+ Created: Wed May 13 19:40:05 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5228033 Bytes = 5105.50 KiB = 4.99 MiB Load Address: 00b00000 Entry Point: 00b00894 Image Name: Linux-5.6.0-rc2+ Created: Wed May 13 19:40:05 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5227325 Bytes = 5104.81 KiB = 4.99 MiB Load Address: 00b00000 Entry Point: 00b00294 Completed OK # rm -rf /kisskb/build/npiggin_ppc6xx_defconfig_powerpc-gcc4.9 # Build took: 0:03:16.832955