perf hist: Remove formats in hierarchy when cancel children

This is to support hierarchy options with custom output fields.
Currently perf_hpp__cancel_cumulate() only removes accumulated
overhead and latency fields from the global perf_hpp_list.

This is not used in the hierarchy mode because each evsel's hist
has its own separate hpp_list.  So it needs to remove the fields
from the lists too.  Pass evlist to the function so that it can
iterate the evsels.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20250331073722.4695-2-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

1 files changed, 19 insertions, 1 deletions

diff --git a/tools/perf/ui/hist.c b/tools/perf/ui/hist.c
index ae3b7fe1dadc..1d3f944ed35e 100644
--- a/tools/perf/ui/hist.c
+++ b/tools/perf/ui/hist.c
@@ -699,9 +699,10 @@ static void perf_hpp__column_unregister(struct perf_hpp_fmt *format)
 	fmt_free(format);
 }
 
-void perf_hpp__cancel_cumulate(void)
+void perf_hpp__cancel_cumulate(struct evlist *evlist)
 {
 	struct perf_hpp_fmt *fmt, *acc, *ovh, *acc_lat, *tmp;
+	struct evsel *evsel;
 
 	if (is_strict_order(field_order))
 		return;
@@ -719,6 +720,23 @@ void perf_hpp__cancel_cumulate(void)
 		if (fmt_equal(ovh, fmt))
 			fmt->name = "Overhead";
 	}
+
+	evlist__for_each_entry(evlist, evsel) {
+		struct hists *hists = evsel__hists(evsel);
+		struct perf_hpp_list_node *node;
+
+		list_for_each_entry(node, &hists->hpp_formats, list) {
+			perf_hpp_list__for_each_format_safe(&node->hpp, fmt, tmp) {
+				if (fmt_equal(acc, fmt) || fmt_equal(acc_lat, fmt)) {
+					perf_hpp__column_unregister(fmt);
+					continue;
+				}
+
+				if (fmt_equal(ovh, fmt))
+					fmt->name = "Overhead";
+			}
+		}
+	}
 }
 
 void perf_hpp__cancel_latency(void)