perf: Add generic memory sampling interface

[linux-beck.git] / include / uapi / linux / perf_event.h

diff --git a/include/uapi/linux/perf_event.h b/include/uapi/linux/perf_event.h
index cdc255da02e2d79e9f415d007c1dcefd8dff2cf5..5b5762006855681eb79d773bb34079ff5dbf765d 100644 (file)
--- a/include/uapi/linux/perf_event.h
+++ b/include/uapi/linux/perf_event.h
@@ -133,9 +133,9 @@ enum perf_event_sample_format {
        PERF_SAMPLE_REGS_USER                   = 1U << 12,
        PERF_SAMPLE_STACK_USER                  = 1U << 13,
        PERF_SAMPLE_WEIGHT                      = 1U << 14,
+       PERF_SAMPLE_DATA_SRC                    = 1U << 15,
 
-       PERF_SAMPLE_MAX = 1U << 15,             /* non-ABI */
-
+       PERF_SAMPLE_MAX = 1U << 16,             /* non-ABI */
 };
 
 /*
@@ -592,6 +592,7 @@ enum perf_event_type {
         *        u64                   dyn_size; } && PERF_SAMPLE_STACK_USER
         *
         *      { u64                   weight;   } && PERF_SAMPLE_WEIGHT
+        *      { u64                   data_src;     } && PERF_SAMPLE_DATA_SRC
         * };
         */
        PERF_RECORD_SAMPLE                      = 9,
@@ -617,4 +618,67 @@ enum perf_callchain_context {
 #define PERF_FLAG_FD_OUTPUT            (1U << 1)
 #define PERF_FLAG_PID_CGROUP           (1U << 2) /* pid=cgroup id, per-cpu mode only */
 
+union perf_mem_data_src {
+       __u64 val;
+       struct {
+               __u64   mem_op:5,       /* type of opcode */
+                       mem_lvl:14,     /* memory hierarchy level */
+                       mem_snoop:5,    /* snoop mode */
+                       mem_lock:2,     /* lock instr */
+                       mem_dtlb:7,     /* tlb access */
+                       mem_rsvd:31;
+       };
+};
+
+/* type of opcode (load/store/prefetch,code) */
+#define PERF_MEM_OP_NA         0x01 /* not available */
+#define PERF_MEM_OP_LOAD       0x02 /* load instruction */
+#define PERF_MEM_OP_STORE      0x04 /* store instruction */
+#define PERF_MEM_OP_PFETCH     0x08 /* prefetch */
+#define PERF_MEM_OP_EXEC       0x10 /* code (execution) */
+#define PERF_MEM_OP_SHIFT      0
+
+/* memory hierarchy (memory level, hit or miss) */
+#define PERF_MEM_LVL_NA                0x01  /* not available */
+#define PERF_MEM_LVL_HIT       0x02  /* hit level */
+#define PERF_MEM_LVL_MISS      0x04  /* miss level  */
+#define PERF_MEM_LVL_L1                0x08  /* L1 */
+#define PERF_MEM_LVL_LFB       0x10  /* Line Fill Buffer */
+#define PERF_MEM_LVL_L2                0x20  /* L2 hit */
+#define PERF_MEM_LVL_L3                0x40  /* L3 hit */
+#define PERF_MEM_LVL_LOC_RAM   0x80  /* Local DRAM */
+#define PERF_MEM_LVL_REM_RAM1  0x100 /* Remote DRAM (1 hop) */
+#define PERF_MEM_LVL_REM_RAM2  0x200 /* Remote DRAM (2 hops) */
+#define PERF_MEM_LVL_REM_CCE1  0x400 /* Remote Cache (1 hop) */
+#define PERF_MEM_LVL_REM_CCE2  0x800 /* Remote Cache (2 hops) */
+#define PERF_MEM_LVL_IO                0x1000 /* I/O memory */
+#define PERF_MEM_LVL_UNC       0x2000 /* Uncached memory */
+#define PERF_MEM_LVL_SHIFT     5
+
+/* snoop mode */
+#define PERF_MEM_SNOOP_NA      0x01 /* not available */
+#define PERF_MEM_SNOOP_NONE    0x02 /* no snoop */
+#define PERF_MEM_SNOOP_HIT     0x04 /* snoop hit */
+#define PERF_MEM_SNOOP_MISS    0x08 /* snoop miss */
+#define PERF_MEM_SNOOP_HITM    0x10 /* snoop hit modified */
+#define PERF_MEM_SNOOP_SHIFT   19
+
+/* locked instruction */
+#define PERF_MEM_LOCK_NA       0x01 /* not available */
+#define PERF_MEM_LOCK_LOCKED   0x02 /* locked transaction */
+#define PERF_MEM_LOCK_SHIFT    24
+
+/* TLB access */
+#define PERF_MEM_TLB_NA                0x01 /* not available */
+#define PERF_MEM_TLB_HIT       0x02 /* hit level */
+#define PERF_MEM_TLB_MISS      0x04 /* miss level */
+#define PERF_MEM_TLB_L1                0x08 /* L1 */
+#define PERF_MEM_TLB_L2                0x10 /* L2 */
+#define PERF_MEM_TLB_WK                0x20 /* Hardware Walker*/
+#define PERF_MEM_TLB_OS                0x40 /* OS fault handler */
+#define PERF_MEM_TLB_SHIFT     26
+
+#define PERF_MEM_S(a, s) \
+       (((u64)PERF_MEM_##a##_##s) << PERF_MEM_##a##_SHIFT)
+
 #endif /* _UAPI_LINUX_PERF_EVENT_H */