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-rw-r--r--tools/include/uapi/linux/perf_event.h6
1 files changed, 4 insertions, 2 deletions
diff --git a/tools/include/uapi/linux/perf_event.h b/tools/include/uapi/linux/perf_event.h
index 3a64499b0f5d..4842c36fdf80 100644
--- a/tools/include/uapi/linux/perf_event.h
+++ b/tools/include/uapi/linux/perf_event.h
@@ -1349,12 +1349,14 @@ 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 */
-/* 5-0x7 available */
+#define PERF_MEM_LVLNUM_L2_MHB 0x05 /* L2 Miss Handling Buffer */
+#define PERF_MEM_LVLNUM_MSC 0x06 /* Memory-side Cache */
+/* 0x7 available */
#define PERF_MEM_LVLNUM_UNC 0x08 /* Uncached */
#define PERF_MEM_LVLNUM_CXL 0x09 /* CXL */
#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_LFB 0x0c /* LFB / L1 Miss Handling Buffer */
#define PERF_MEM_LVLNUM_RAM 0x0d /* RAM */
#define PERF_MEM_LVLNUM_PMEM 0x0e /* PMEM */
#define PERF_MEM_LVLNUM_NA 0x0f /* N/A */