From 23fa18eaa71266feff7ba8d83022d9e1cc83c65a Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Fri, 10 May 2024 07:42:03 +0000
Subject: [PATCH] disable pwm7

---
 kernel/tools/perf/util/parse-regs-options.c |   49 ++++++++++++++++++++++++++++++++++++++-----------
 1 files changed, 38 insertions(+), 11 deletions(-)

diff --git a/kernel/tools/perf/util/parse-regs-options.c b/kernel/tools/perf/util/parse-regs-options.c
index e5ad120..a4a1004 100644
--- a/kernel/tools/perf/util/parse-regs-options.c
+++ b/kernel/tools/perf/util/parse-regs-options.c
@@ -1,17 +1,22 @@
 // SPDX-License-Identifier: GPL-2.0
-#include "perf.h"
-#include "util/util.h"
+#include <stdbool.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+#include <stdio.h>
 #include "util/debug.h"
 #include <subcmd/parse-options.h>
+#include "util/perf_regs.h"
 #include "util/parse-regs-options.h"
 
-int
-parse_regs(const struct option *opt, const char *str, int unset)
+static int
+__parse_regs(const struct option *opt, const char *str, int unset, bool intr)
 {
 	uint64_t *mode = (uint64_t *)opt->value;
-	const struct sample_reg *r;
+	const struct sample_reg *r = NULL;
 	char *s, *os = NULL, *p;
 	int ret = -1;
+	uint64_t mask;
 
 	if (unset)
 		return 0;
@@ -21,6 +26,11 @@
 	 */
 	if (*mode)
 		return -1;
+
+	if (intr)
+		mask = arch__intr_reg_mask();
+	else
+		mask = arch__user_reg_mask();
 
 	/* str may be NULL in case no arg is passed to -I */
 	if (str) {
@@ -36,20 +46,25 @@
 
 			if (!strcmp(s, "?")) {
 				fprintf(stderr, "available registers: ");
+#ifdef HAVE_PERF_REGS_SUPPORT
 				for (r = sample_reg_masks; r->name; r++) {
-					fprintf(stderr, "%s ", r->name);
+					if (r->mask & mask)
+						fprintf(stderr, "%s ", r->name);
 				}
+#endif
 				fputc('\n', stderr);
 				/* just printing available regs */
 				goto error;
 			}
+#ifdef HAVE_PERF_REGS_SUPPORT
 			for (r = sample_reg_masks; r->name; r++) {
-				if (!strcasecmp(s, r->name))
+				if ((r->mask & mask) && !strcasecmp(s, r->name))
 					break;
 			}
-			if (!r->name) {
-				ui__warning("unknown register %s,"
-					    " check man page\n", s);
+#endif
+			if (!r || !r->name) {
+				ui__warning("Unknown register \"%s\", check man page or run \"perf record %s?\"\n",
+					    s, intr ? "-I" : "--user-regs=");
 				goto error;
 			}
 
@@ -65,8 +80,20 @@
 
 	/* default to all possible regs */
 	if (*mode == 0)
-		*mode = PERF_REGS_MASK;
+		*mode = mask;
 error:
 	free(os);
 	return ret;
 }
+
+int
+parse_user_regs(const struct option *opt, const char *str, int unset)
+{
+	return __parse_regs(opt, str, unset, false);
+}
+
+int
+parse_intr_regs(const struct option *opt, const char *str, int unset)
+{
+	return __parse_regs(opt, str, unset, true);
+}

--
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