# 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 48 ARCH=powerpc O=/kisskb/build/powerpc-fixes_mpc85xx_smp_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- mpc85xx_smp_defconfig # make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-fixes_mpc85xx_smp_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/include/linux/kernel.h:11:0, from /kisskb/src/include/linux/list.h:9, from /kisskb/src/include/linux/module.h:9, from /kisskb/src/drivers/net/ethernet/freescale/fs_enet/mac-scc.c:15: /kisskb/src/drivers/net/ethernet/freescale/fs_enet/mac-scc.c: In function 'allocate_bd': /kisskb/src/include/linux/err.h:22:49: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] #define IS_ERR_VALUE(x) unlikely((unsigned long)(void *)(x) >= (unsigned long)-MAX_ERRNO) ^ /kisskb/src/include/linux/compiler.h:78:42: note: in definition of macro 'unlikely' # define unlikely(x) __builtin_expect(!!(x), 0) ^ /kisskb/src/drivers/net/ethernet/freescale/fs_enet/mac-scc.c:139:6: note: in expansion of macro 'IS_ERR_VALUE' if (IS_ERR_VALUE(fep->ring_mem_addr)) ^ /kisskb/src/arch/powerpc/boot/dts/fsl/mpc8541cds.dts:330.3-21: Warning (pci_device_bus_num): /pci@e0008000/i8259@19000:bus-range: PCI bus number 1 out of range, expected (0 - 0) /kisskb/src/arch/powerpc/boot/dts/fsl/mpc8555cds.dts:330.3-21: Warning (pci_device_bus_num): /pci@e0008000/i8259@19000:bus-range: PCI bus number 1 out of range, expected (0 - 0) INFO: Uncompressed kernel (size 0xcc3d60) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xcc3d60) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xcc3d60) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xcc3d60) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xcc3d60) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xcc3d60) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xcc3d60) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xcc3d60) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xcc3d60) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xcc3d60) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xcc3d60) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xcc3d60) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xcc3d60) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xcc3d60) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xcc3d60) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xcb352c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) Image Name: Linux-5.3.0-gb6a4fec7d708 Created: Tue Sep 24 22:00:06 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6267351 Bytes = 6120.46 KiB = 5.98 MiB Load Address: 00000000 Entry Point: 00000000 Image Name: Linux-5.3.0-gb6a4fec7d708 Created: Tue Sep 24 22:00:06 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6297841 Bytes = 6150.24 KiB = 6.01 MiB Load Address: 00d00000 Entry Point: 00d002a4 Image Name: Linux-5.3.0-gb6a4fec7d708 Created: Tue Sep 24 22:00:07 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6298608 Bytes = 6150.98 KiB = 6.01 MiB Load Address: 00d00000 Entry Point: 00d00314 Image Name: Linux-5.3.0-gb6a4fec7d708 Created: Tue Sep 24 22:00:07 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6298615 Bytes = 6150.99 KiB = 6.01 MiB Load Address: 00d00000 Entry Point: 00d002a4 Image Name: Linux-5.3.0-gb6a4fec7d708 Created: Tue Sep 24 22:00:07 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6298319 Bytes = 6150.70 KiB = 6.01 MiB Load Address: 00d00000 Entry Point: 00d002a4 Image Name: Linux-5.3.0-gb6a4fec7d708 Created: Tue Sep 24 22:00:07 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6297542 Bytes = 6149.94 KiB = 6.01 MiB Load Address: 00d00000 Entry Point: 00d002a4 Image Name: Linux-5.3.0-gb6a4fec7d708 Created: Tue Sep 24 22:00:09 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6298199 Bytes = 6150.58 KiB = 6.01 MiB Load Address: 00d00000 Entry Point: 00d00314 Image Name: Linux-5.3.0-gb6a4fec7d708 Created: Tue Sep 24 22:00:09 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6299234 Bytes = 6151.60 KiB = 6.01 MiB Load Address: 00d00000 Entry Point: 00d002a4 Image Name: Linux-5.3.0-gb6a4fec7d708 Created: Tue Sep 24 22:00:10 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6299374 Bytes = 6151.73 KiB = 6.01 MiB Load Address: 00d00000 Entry Point: 00d002a4 Image Name: Linux-5.3.0-gb6a4fec7d708 Created: Tue Sep 24 22:00:10 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6298228 Bytes = 6150.61 KiB = 6.01 MiB Load Address: 00d00000 Entry Point: 00d00314 Image Name: Linux-5.3.0-gb6a4fec7d708 Created: Tue Sep 24 22:00:10 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6298525 Bytes = 6150.90 KiB = 6.01 MiB Load Address: 00d00000 Entry Point: 00d002a4 Image Name: Linux-5.3.0-gb6a4fec7d708 Created: Tue Sep 24 22:00:10 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6298607 Bytes = 6150.98 KiB = 6.01 MiB Load Address: 00d00000 Entry Point: 00d00314 Image Name: Linux-5.3.0-gb6a4fec7d708 Created: Tue Sep 24 22:00:10 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6298765 Bytes = 6151.14 KiB = 6.01 MiB Load Address: 00d00000 Entry Point: 00d00314 Image Name: Linux-5.3.0-gb6a4fec7d708 Created: Tue Sep 24 22:00:10 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6298117 Bytes = 6150.50 KiB = 6.01 MiB Load Address: 00d00000 Entry Point: 00d002a4 Image Name: Linux-5.3.0-gb6a4fec7d708 Created: Tue Sep 24 22:00:10 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6298159 Bytes = 6150.55 KiB = 6.01 MiB Load Address: 00d00000 Entry Point: 00d002a4 Image Name: Linux-5.3.0-gb6a4fec7d708 Created: Tue Sep 24 22:00:10 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6298162 Bytes = 6150.55 KiB = 6.01 MiB Load Address: 00d00000 Entry Point: 00d002a4 Completed OK # rm -rf /kisskb/build/powerpc-fixes_mpc85xx_smp_defconfig_powerpc-gcc5 # Build took: 0:02:06.102524