# 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-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version
# < git log --format=%s --max-count=1 5eab62c15c387fa3caa03039bd027dc9aab9f637
# < make -s -j 32 ARCH=powerpc O=/kisskb/build/powerpc-next_mpc85xx_defconfig+KVM_powerpc-gcc9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-9.2.0-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 32 ARCH=powerpc O=/kisskb/build/powerpc-next_mpc85xx_defconfig+KVM_powerpc-gcc9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  help
# make -s -j 32 ARCH=powerpc O=/kisskb/build/powerpc-next_mpc85xx_defconfig+KVM_powerpc-gcc9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  olddefconfig
.config:4301:warning: override: reassigning to symbol PPC_E500MC
.config:4302:warning: override: reassigning to symbol VIRTUALIZATION
# make -s -j 32 ARCH=powerpc O=/kisskb/build/powerpc-next_mpc85xx_defconfig+KVM_powerpc-gcc9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-9.2.0-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/bitops.h:33,
                 from /kisskb/src/include/linux/kernel.h:13,
                 from /kisskb/src/include/linux/cpumask.h:10,
                 from /kisskb/src/include/linux/smp.h:13,
                 from /kisskb/src/include/linux/lockdep.h:14,
                 from /kisskb/src/include/linux/mutex.h:17,
                 from /kisskb/src/arch/powerpc/include/asm/kvm_ppc.h:15,
                 from /kisskb/src/arch/powerpc/kvm/e500_emulate.c:12:
/kisskb/src/arch/powerpc/include/asm/bitops.h: In function 'kvmppc_core_emulate_op_e500':
/kisskb/src/arch/powerpc/include/asm/bitops.h:104:3: error: asm operand 2 probably doesn't match constraints [-Werror]
  104 |   asm volatile (      \
      |   ^~~
/kisskb/src/arch/powerpc/include/asm/bitops.h:126:1: note: in expansion of macro 'DEFINE_CLROP'
  126 | DEFINE_CLROP(clear_bits, "")
      | ^~~~~~~~~~~~
/kisskb/src/arch/powerpc/include/asm/bitops.h:104:3: error: impossible constraint in 'asm'
  104 |   asm volatile (      \
      |   ^~~
/kisskb/src/arch/powerpc/include/asm/bitops.h:126:1: note: in expansion of macro 'DEFINE_CLROP'
  126 | DEFINE_CLROP(clear_bits, "")
      | ^~~~~~~~~~~~
cc1: all warnings being treated as errors
make[3]: *** [/kisskb/src/scripts/Makefile.build:287: arch/powerpc/kvm/e500_emulate.o] Error 1
make[3]: *** Waiting for unfinished jobs....
make[2]: *** [/kisskb/src/scripts/Makefile.build:549: arch/powerpc/kvm] Error 2
make[1]: *** [/kisskb/src/Makefile:1846: arch/powerpc] Error 2
make[1]: *** Waiting for unfinished jobs....
make: *** [Makefile:219: __sub-make] Error 2
Command 'make -s -j 32 ARCH=powerpc O=/kisskb/build/powerpc-next_mpc85xx_defconfig+KVM_powerpc-gcc9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  ' returned non-zero exit status 2
# rm -rf /kisskb/build/powerpc-next_mpc85xx_defconfig+KVM_powerpc-gcc9
# Build took: 0:00:47.381363