perf/mem: Rename PERF_MEM_LVLNUM_EXTN_MEM to PERF_MEM_LVLNUM_CXL

PERF_MEM_LVLNUM_EXTN_MEM was introduced to cover CXL devices but it's
bit ambiguous name and also not generic enough to cover cxl.cache and
cxl.io devices. Rename it to PERF_MEM_LVLNUM_CXL to be more specific.

Signed-off-by: Ravi Bangoria <ravi.bangoria@amd.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/f6268268-b4e9-9ed6-0453-65792644d953@amd.com

diff --git a/arch/x86/events/amd/ibs.c b/arch/x86/events/amd/ibs.c
index 3271735..4cb710e 100644 (file)
--- a/arch/x86/events/amd/ibs.c
+++ b/arch/x86/events/amd/ibs.c
@@ -801,7 +801,7 @@ static void perf_ibs_get_mem_lvl(union ibs_op_data2 *op_data2,
        /* Extension Memory */
        if (ibs_caps & IBS_CAPS_ZEN4 &&
            ibs_data_src == IBS_DATA_SRC_EXT_EXT_MEM) {
-               data_src->mem_lvl_num = PERF_MEM_LVLNUM_EXTN_MEM;
+               data_src->mem_lvl_num = PERF_MEM_LVLNUM_CXL;
                if (op_data2->rmt_node) {
                        data_src->mem_remote = PERF_MEM_REMOTE_REMOTE;
                        /* IBS doesn't provide Remote socket detail */

diff --git a/include/uapi/linux/perf_event.h b/include/uapi/linux/perf_event.h
index 85be78e..ccb7f5d 100644 (file)
--- a/include/uapi/linux/perf_event.h
+++ b/include/uapi/linux/perf_event.h
@@ -1337,7 +1337,7 @@ union perf_mem_data_src {
 #define PERF_MEM_LVLNUM_L3     0x03 /* L3 */
 #define PERF_MEM_LVLNUM_L4     0x04 /* L4 */
 /* 5-0x8 available */
-#define PERF_MEM_LVLNUM_EXTN_MEM 0x09 /* Extension memory */
+#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 */