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perf tools: Add support for printing new mem_info encodings

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Add decoding for the new "lvlx" and "snoopx" meminfo fields added
earlier to the kernel so that "perf mem report" and other tools can
print it properly.

v2: Merge with persistent memory patch.
Switch to new bit encoding for each combination.

v3: Switch to generic lvlnum field.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Link: http://lkml.kernel.org/r/20170816222156.19953-4-andi@firstfloor.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Andi Kleen
2017-08-16 15:21:55 -07:00
committed by Arnaldo Carvalho de Melo
parent 41d3d6db17
commit 52839e653b
2 changed files with 68 additions and 5 deletions
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30
tools/include/uapi/linux/perf_event.h
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@@ -954,14 +954,20 @@ union perf_mem_data_src {
mem_snoop:5, /* snoop mode */
mem_lock:2, /* lock instr */
mem_dtlb:7, /* tlb access */
mem_rsvd:31;
mem_lvl_num:4, /* memory hierarchy level number */
mem_remote:1, /* remote */
mem_snoopx:2, /* snoop mode, ext */
mem_rsvd:24;
};
};
#elif defined(__BIG_ENDIAN_BITFIELD)
union perf_mem_data_src {
__u64 val;
struct {
__u64 mem_rsvd:31,
__u64 mem_rsvd:24,
mem_snoopx:2, /* snoop mode, ext */
mem_remote:1, /* remote */
mem_lvl_num:4, /* memory hierarchy level number */
mem_dtlb:7, /* tlb access */
mem_lock:2, /* lock instr */
mem_snoop:5, /* snoop mode */
@@ -998,6 +1004,22 @@ union perf_mem_data_src {
#define PERF_MEM_LVL_UNC 0x2000 /* Uncached memory */
#define PERF_MEM_LVL_SHIFT 5
#define PERF_MEM_REMOTE_REMOTE 0x01 /* Remote */
#define PERF_MEM_REMOTE_SHIFT 37
#define PERF_MEM_LVLNUM_L1 0x01 /* L1 */
#define PERF_MEM_LVLNUM_L2 0x02 /* L2 */
#define PERF_MEM_LVLNUM_L3 0x03 /* L3 */
#define PERF_MEM_LVLNUM_L4 0x04 /* L4 */
/* 5-0xa available */
#define PERF_MEM_LVLNUM_ANY_CACHE 0x0b /* Any cache */
#define PERF_MEM_LVLNUM_LFB 0x0c /* LFB */
#define PERF_MEM_LVLNUM_RAM 0x0d /* RAM */
#define PERF_MEM_LVLNUM_PMEM 0x0e /* PMEM */
#define PERF_MEM_LVLNUM_NA 0x0f /* N/A */
#define PERF_MEM_LVLNUM_SHIFT 33
/* snoop mode */
#define PERF_MEM_SNOOP_NA 0x01 /* not available */
#define PERF_MEM_SNOOP_NONE 0x02 /* no snoop */
@@ -1006,6 +1028,10 @@ union perf_mem_data_src {
#define PERF_MEM_SNOOP_HITM 0x10 /* snoop hit modified */
#define PERF_MEM_SNOOP_SHIFT 19
#define PERF_MEM_SNOOPX_FWD 0x01 /* forward */
/* 1 free */
#define PERF_MEM_SNOOPX_SHIFT 37
/* locked instruction */
#define PERF_MEM_LOCK_NA 0x01 /* not available */
#define PERF_MEM_LOCK_LOCKED 0x02 /* locked transaction */