add ax88772_rst

hc

2024-05-10 9999e48639b3cecb08ffb37358bcba3b48161b29

 kernel/tools/perf/arch/x86/util/tsc.c
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..
@@ -1,43 +1,7 @@
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 // SPDX-License-Identifier: GPL-2.0
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-#include <stdbool.h>
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-#include <errno.h>
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-
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-#include <linux/stddef.h>
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-#include <linux/perf_event.h>
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-
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-#include "../../perf.h"
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 #include <linux/types.h>
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-#include "../../util/debug.h"
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-#include "../../util/tsc.h"
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-int perf_read_tsc_conversion(const struct perf_event_mmap_page *pc,
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-			     struct perf_tsc_conversion *tc)
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-{
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-	bool cap_user_time_zero;
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-	u32 seq;
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-	int i = 0;
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-
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-	while (1) {
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-		seq = pc->lock;
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-		rmb();
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-		tc->time_mult = pc->time_mult;
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-		tc->time_shift = pc->time_shift;
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-		tc->time_zero = pc->time_zero;
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-		cap_user_time_zero = pc->cap_user_time_zero;
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-		rmb();
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-		if (pc->lock == seq && !(seq & 1))
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-			break;
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-		if (++i > 10000) {
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-			pr_debug("failed to get perf_event_mmap_page lock\n");
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-			return -EINVAL;
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-		}
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-	}
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-
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-	if (!cap_user_time_zero)
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-		return -EOPNOTSUPP;
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-
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-	return 0;
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-}
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+#include "../../../util/tsc.h"
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 u64 rdtsc(void)
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 {
..
..
@@ -46,37 +10,4 @@
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 	asm volatile("rdtsc" : "=a" (low), "=d" (high));
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 	return low | ((u64)high) << 32;
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-}
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-
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-int perf_event__synth_time_conv(const struct perf_event_mmap_page *pc,
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-				struct perf_tool *tool,
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-				perf_event__handler_t process,
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-				struct machine *machine)
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-{
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-	union perf_event event = {
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-		.time_conv = {
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-			.header = {
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-				.type = PERF_RECORD_TIME_CONV,
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-				.size = sizeof(struct time_conv_event),
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-			},
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-		},
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-	};
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-	struct perf_tsc_conversion tc;
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-	int err;
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-
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-	if (!pc)
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-		return 0;
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-	err = perf_read_tsc_conversion(pc, &tc);
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-	if (err == -EOPNOTSUPP)
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-		return 0;
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-	if (err)
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-		return err;
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-
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-	pr_debug2("Synthesizing TSC conversion information\n");
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-
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-	event.time_conv.time_mult  = tc.time_mult;
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-	event.time_conv.time_shift = tc.time_shift;
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-	event.time_conv.time_zero  = tc.time_zero;
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-
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-	return process(tool, &event, NULL, machine);
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 }