diff options
| author |   Madhavan Srinivasan <maddy@linux.vnet.ibm.com> | 2017-04-11 07:21:06 +0530 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2017-04-19 20:00:21 +1000 |
| commit | 79e96f8f930d425ab48c511f8a6db16ca7fc68b1 (patch) | |
| tree | 3387541ca447b33b95fdbd736e392098bc392143 /arch/powerpc/include | |
| parent | powerpc/perf: Define big-endian version of perf_mem_data_src (diff) | |
| download | linux-dev-79e96f8f930d425ab48c511f8a6db16ca7fc68b1.tar.xz linux-dev-79e96f8f930d425ab48c511f8a6db16ca7fc68b1.zip | |
powerpc/perf: Export memory hierarchy info to user space
The LDST field and DATA_SRC in SIER identifies the memory hierarchy level
(eg: L1, L2 etc), from which a data-cache miss for a marked instruction
was satisfied. Use the 'perf_mem_data_src' object to export this
hierarchy level to user space.
Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
Signed-off-by: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/include')
| -rw-r--r-- | arch/powerpc/include/asm/perf_event_server.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/perf_event_server.h b/arch/powerpc/include/asm/perf_event_server.h index ae0a23091a9b..446cdcd9b7f5 100644 --- a/arch/powerpc/include/asm/perf_event_server.h +++ b/arch/powerpc/include/asm/perf_event_server.h @@ -38,6 +38,8 @@ struct power_pmu { unsigned long *valp); int (*get_alternatives)(u64 event_id, unsigned int flags, u64 alt[]); + void (*get_mem_data_src)(union perf_mem_data_src *dsrc, + u32 flags, struct pt_regs *regs); u64 (*bhrb_filter_map)(u64 branch_sample_type); void (*config_bhrb)(u64 pmu_bhrb_filter); void (*disable_pmc)(unsigned int pmc, unsigned long mmcr[]); |