perf design.txt: Synchronize the definition of enum perf_hw_id with code

We're not surprised that there are tons of Linux users who only read the
documentation to learn about the kernel.

Let's update the perf part for common hardware events since three new
*generic* hardware events were added.

Signed-off-by: Like Xu <likexu@tencent.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20211109090147.56978-1-likexu@tencent.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/perf/design.txt b/tools/perf/design.txt
index a42fab308ff6a2cbca76f65302efbc9f6c8f618b..aa8cfeabb7432d4011005f34a981fa3381caab09 100644 (file)
--- a/tools/perf/design.txt
+++ b/tools/perf/design.txt
@@ -106,6 +106,9 @@ enum perf_hw_id {
        PERF_COUNT_HW_BRANCH_INSTRUCTIONS       = 4,
        PERF_COUNT_HW_BRANCH_MISSES             = 5,
        PERF_COUNT_HW_BUS_CYCLES                = 6,
+       PERF_COUNT_HW_STALLED_CYCLES_FRONTEND   = 7,
+       PERF_COUNT_HW_STALLED_CYCLES_BACKEND    = 8,
+       PERF_COUNT_HW_REF_CPU_CYCLES            = 9,
 };
 
 These are standardized types of events that work relatively uniformly