# git rev-parse -q --verify 5eab62c15c387fa3caa03039bd027dc9aab9f637^{commit}
5eab62c15c387fa3caa03039bd027dc9aab9f637
already have revision, skipping fetch
# git checkout -q -f -B kisskb 5eab62c15c387fa3caa03039bd027dc9aab9f637
# git clean -qxdf
# < git log -1
# commit 5eab62c15c387fa3caa03039bd027dc9aab9f637
# Author: Kajol Jain <kjain@linux.ibm.com>
# Date:   Mon Dec 6 14:47:49 2021 +0530
# 
#     powerpc/perf: Add data source encodings for power10 platform
#     
#     The code represent memory/cache level data based on PERF_MEM_LVL_*
#     namespace, which is in the process of deprication in the favour of
#     newer composite PERF_MEM_{LVLNUM_,REMOTE_,SNOOPX_,HOPS_} fields.
#     Add data source encodings to represent cache/memory data based on
#     newer composite PERF_MEM_{LVLNUM_,REMOTE_,SNOOPX_,HOPS_} fields.
#     
#     Add data source encodings to represent data coming from local
#     memory/Remote memory/distant memory and remote/distant cache hits.
#     
#     In order to represent data coming from OpenCAPI cache/memory, we use
#     LVLNUM "PMEM" field which is used to present persistent memory accesses.
#     
#     Result in power10 system with patch changes:
#     
#     localhost:# ./perf mem report --sort="mem,sym,dso" --stdio
#      # Overhead       Samples  Memory access             Symbol                      Shared Object
#      # ........  ............  ........................  ..........................  ................
#      #
#         29.46%          2331  L1 or L1 hit              [.] __random                                     libc-2.28.so
#         23.11%          2121  L1 or L1 hit              [.] producer_populate_cache                      producer_consumer
#         18.56%          1758  L1 or L1 hit              [.] __random_r                                   libc-2.28.so
#         15.64%          1559  L2 or L2 hit              [.] __random                                     libc-2.28.so
#         .....
#         0.09%              5  Remote socket, same board Any cache hit             [.] __random         libc-2.28.so
#         0.07%              4  Remote socket, same board Any cache hit             [.] __random         libc-2.28.so
#         .....
#     
#     Signed-off-by: Kajol Jain <kjain@linux.ibm.com>
#     Reviewed-by: Madhavan Srinivasan <maddy@linux.ibm.com>
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
#     Link: https://lore.kernel.org/r/20211206091749.87585-5-kjain@linux.ibm.com
# < /opt/cross/kisskb/korg/gcc-11.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-11.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version
# < git log --format=%s --max-count=1 5eab62c15c387fa3caa03039bd027dc9aab9f637
# < make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_mpc85xx_defconfig+KVM_powerpc-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  mpc85xx_defconfig
# Added to kconfig CONFIG_PPC_E500MC=y
# Added to kconfig CONFIG_VIRTUALIZATION=y
# Added to kconfig CONFIG_KVM_E500MC=y
# Added to kconfig 
# < make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_mpc85xx_defconfig+KVM_powerpc-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  help
# make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_mpc85xx_defconfig+KVM_powerpc-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  olddefconfig
.config:4305:warning: override: reassigning to symbol PPC_E500MC
.config:4306:warning: override: reassigning to symbol VIRTUALIZATION
# make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_mpc85xx_defconfig+KVM_powerpc-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  
<stdin>:1559:2: warning: #warning syscall futex_waitv not implemented [-Wcpp]
In file included from /kisskb/src/include/linux/build_bug.h:5,
                 from /kisskb/src/include/linux/container_of.h:5,
                 from /kisskb/src/include/linux/list.h:5,
                 from /kisskb/src/include/linux/module.h:12,
                 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]
   22 | #define IS_ERR_VALUE(x) unlikely((unsigned long)(void *)(x) >= (unsigned long)-MAX_ERRNO)
      |                                                 ^
/kisskb/src/include/linux/compiler.h:78:45: note: in definition of macro 'unlikely'
   78 | # define unlikely(x)    __builtin_expect(!!(x), 0)
      |                                             ^
/kisskb/src/drivers/net/ethernet/freescale/fs_enet/mac-scc.c:139:13: note: in expansion of macro 'IS_ERR_VALUE'
  139 |         if (IS_ERR_VALUE(fep->ring_mem_addr))
      |             ^~~~~~~~~~~~
/kisskb/src/arch/powerpc/boot/dts/fsl/mpc8555cds.dts:341.15-350.5: Warning (pci_device_reg): /pci@e0008000/i8259@19000: PCI unit address format error, expected "12,0"
/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)
/kisskb/src/arch/powerpc/boot/dts/fsl/mpc8541cds.dts:341.15-350.5: Warning (pci_device_reg): /pci@e0008000/i8259@19000: PCI unit address format error, expected "12,0"
/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)
Completed OK
# rm -rf /kisskb/build/powerpc-next_mpc85xx_defconfig+KVM_powerpc-gcc11
# Build took: 0:02:58.557927