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| author | Ravi Bangoria <ravi.bangoria@amd.com> | 2022-09-28 12:57:51 +0300 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2022-09-29 13:20:54 +0300 |
| commit | ee3e88dfec23153d0675b5d00522297b9adf657c (patch) | |
| tree | 55d065c437d91f6c543cbeb94519633fe092b109 /include/uapi/linux/perf_event.h | |
| parent | e04a1607c9c3c0e2dc48715aeb570f2581f514bc (diff) | |
| download | linux-ee3e88dfec23153d0675b5d00522297b9adf657c.tar.xz | |
perf/mem: Introduce PERF_MEM_LVLNUM_{EXTN_MEM|IO}
PERF_MEM_LVLNUM_EXTN_MEM which can be used to indicate accesses to
extension memory like CXL etc. PERF_MEM_LVL_IO can be used for IO
accesses but it can not distinguish between local and remote IO.
Introduce new field PERF_MEM_LVLNUM_IO which can be clubbed with
PERF_MEM_REMOTE_REMOTE to indicate Remote IO accesses.
Signed-off-by: Ravi Bangoria <ravi.bangoria@amd.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20220928095805.596-2-ravi.bangoria@amd.com
Diffstat (limited to 'include/uapi/linux/perf_event.h')
| -rw-r--r-- | include/uapi/linux/perf_event.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/include/uapi/linux/perf_event.h b/include/uapi/linux/perf_event.h index e639c74cf5fb..4ae3c249f675 100644 --- a/include/uapi/linux/perf_event.h +++ b/include/uapi/linux/perf_event.h @@ -1336,7 +1336,9 @@ union perf_mem_data_src { #define PERF_MEM_LVLNUM_L2 0x02 /* L2 */ #define PERF_MEM_LVLNUM_L3 0x03 /* L3 */ #define PERF_MEM_LVLNUM_L4 0x04 /* L4 */ -/* 5-0xa available */ +/* 5-0x8 available */ +#define PERF_MEM_LVLNUM_EXTN_MEM 0x09 /* Extension memory */ +#define PERF_MEM_LVLNUM_IO 0x0a /* I/O */ #define PERF_MEM_LVLNUM_ANY_CACHE 0x0b /* Any cache */ #define PERF_MEM_LVLNUM_LFB 0x0c /* LFB */ #define PERF_MEM_LVLNUM_RAM 0x0d /* RAM */ |