# git rev-parse -q --verify b6a4fec7d708dcc769f908ce7b308a0de8b3ad8f^{commit} b6a4fec7d708dcc769f908ce7b308a0de8b3ad8f already have revision, skipping fetch # git checkout -q -f -B kisskb b6a4fec7d708dcc769f908ce7b308a0de8b3ad8f # git clean -qxdf # < git log -1 # commit b6a4fec7d708dcc769f908ce7b308a0de8b3ad8f # Author: Aneesh Kumar K.V # Date: Tue Sep 3 18:04:52 2019 +0530 # # powerpc/nvdimm: use H_SCM_QUERY hcall on H_OVERLAP error # # Right now we force an unbind of SCM memory at drcindex on H_OVERLAP error. # This really slows down operations like kexec where we get the H_OVERLAP # error because we don't go through a full hypervisor re init. # # H_OVERLAP error for a H_SCM_BIND_MEM hcall indicates that SCM memory at # drc index is already bound. Since we don't specify a logical memory # address for bind hcall, we can use the H_SCM_QUERY hcall to query # the already bound logical address. # # Boot time difference with and without patch is: # # [ 5.583617] IOMMU table initialized, virtual merging enabled # [ 5.603041] papr_scm ibm,persistent-memory:ibm,pmemory@44104001: Retrying bind after unbinding # [ 301.514221] papr_scm ibm,persistent-memory:ibm,pmemory@44108001: Retrying bind after unbinding # [ 340.057238] hv-24x7: read 1530 catalog entries, created 537 event attrs (0 failures), 275 descs # # after fix # # [ 5.101572] IOMMU table initialized, virtual merging enabled # [ 5.116984] papr_scm ibm,persistent-memory:ibm,pmemory@44104001: Querying SCM details # [ 5.117223] papr_scm ibm,persistent-memory:ibm,pmemory@44108001: Querying SCM details # [ 5.120530] hv-24x7: read 1530 catalog entries, created 537 event attrs (0 failures), 275 descs # # Signed-off-by: Aneesh Kumar K.V # Signed-off-by: Michael Ellerman # Link: https://lore.kernel.org/r/20190903123452.28620-2-aneesh.kumar@linux.ibm.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 b6a4fec7d708dcc769f908ce7b308a0de8b3ad8f # < make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-fixes_ppc6xx_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- ppc6xx_defconfig # make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-fixes_ppc6xx_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-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:208:9: 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; ^ INFO: Uncompressed kernel (size 0xa8de10) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xa8de10) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xa8de10) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xa8de10) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xa8de10) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xa8de10) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xa8de10) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xa8de10) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xa8de10) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xa8de10) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xa7d6f8) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xa7d6f8) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) Image Name: Linux-5.3.0+ Created: Tue Sep 24 21:51:36 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5062089 Bytes = 4943.45 KiB = 4.83 MiB Load Address: 00b00000 Entry Point: 00b00294 Image Name: Linux-5.3.0+ Created: Tue Sep 24 21:51:36 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5062117 Bytes = 4943.47 KiB = 4.83 MiB Load Address: 00b00000 Entry Point: 00b00294 Image Name: Linux-5.3.0+ Created: Tue Sep 24 21:51:36 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5062174 Bytes = 4943.53 KiB = 4.83 MiB Load Address: 00b00000 Entry Point: 00b00894 Image Name: Linux-5.3.0+ Created: Tue Sep 24 21:51:36 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5062247 Bytes = 4943.60 KiB = 4.83 MiB Load Address: 00b00000 Entry Point: 00b00294 Image Name: Linux-5.3.0+ Created: Tue Sep 24 21:51:36 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5061948 Bytes = 4943.31 KiB = 4.83 MiB Load Address: 00b00000 Entry Point: 00b00294 Image Name: Linux-5.3.0+ Created: Tue Sep 24 21:51:36 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5062119 Bytes = 4943.48 KiB = 4.83 MiB Load Address: 00b00000 Entry Point: 00b00894 Image Name: Linux-5.3.0+ Created: Tue Sep 24 21:51:36 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5062526 Bytes = 4943.87 KiB = 4.83 MiB Load Address: 00b00000 Entry Point: 00b00294 Image Name: Linux-5.3.0+ Created: Tue Sep 24 21:51:37 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5062279 Bytes = 4943.63 KiB = 4.83 MiB Load Address: 00b00000 Entry Point: 00b00294 Image Name: Linux-5.3.0+ Created: Tue Sep 24 21:51:37 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5032291 Bytes = 4914.35 KiB = 4.80 MiB Load Address: 00000000 Entry Point: 00000000 Completed OK # rm -rf /kisskb/build/powerpc-fixes_ppc6xx_defconfig_powerpc-gcc5 # Build took: 0:01:56.907484