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perf: Add new macros for mem_hops field

Add new macros for mem_hops field which can be used to represent remote-node, socket and board level details. Currently the code had macro for HOPS_0, which corresponds to data coming from another core but same node. Add new macros for HOPS_1 to HOPS_3 to represent remote-node, socket and board level data. For ex: Encodings for mem_hops fields with L2 cache: L2 - local L2 L2 | REMOTE | HOPS_0 - remote core, same node L2 L2 | REMOTE | HOPS_1 - remote node, same socket L2 L2 | REMOTE | HOPS_2 - remote socket, same board L2 L2 | REMOTE | HOPS_3 - remote board L2

Kajol Jain committed 4 years ago

Commit cb1c4ab1 parent 708da3f1 file · +4 −1Browse files

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include/uapi/linux/perf_event.h+4−1
@@ -1332,7 +1332,10 @@ union perf_mem_data_src { · 1331 unmodified lines
13321332
13331333 /* hop level */
13341334 #define PERF_MEM_HOPS_0 0x01 /* remote core, same node */
1335−/* 2-7 available */
1335+#define PERF_MEM_HOPS_1 0x02 /* remote node, same socket */
1336+#define PERF_MEM_HOPS_2 0x03 /* remote socket, same board */
1337+#define PERF_MEM_HOPS_3 0x04 /* remote board */
1338+/* 5-7 available */
13361339 #define PERF_MEM_HOPS_SHIFT 43
13371340
13381341 #define PERF_MEM_S(a, s) \