Messages in this thread Patch in this message | | | From | Ravi Bangoria <> | Subject | [PATCH v2 01/14] perf/mem: Introduce PERF_MEM_LVLNUM_{EXTN_MEM|IO} | Date | Thu, 16 Jun 2022 17:06:24 +0530 |
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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> --- include/uapi/linux/perf_event.h | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/include/uapi/linux/perf_event.h b/include/uapi/linux/perf_event.h index d37629dbad72..1c3157c1be9d 100644 --- a/include/uapi/linux/perf_event.h +++ b/include/uapi/linux/perf_event.h @@ -1292,7 +1292,9 @@ 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 0x9 /* 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 */ -- 2.31.1
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