perf annotate: Move compute_ipc() to annotation library

Out of the TUI code, as it has nothing specific to that UI and should be
used in the other output modes as well.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lkml.kernel.org/n/tip-0jahghvqdodb8vu2591pkv3d@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/ui/browsers/annotate.c

@@ -967,73 +967,6 @@ int hist_entry__tui_annotate(struct hist_entry *he, struct perf_evsel *evsel,
 	return map_symbol__tui_annotate(&he->ms, evsel, hbt);
 }
 
-
-static unsigned count_insn(struct annotation *notes, u64 start, u64 end)
-{
-	unsigned n_insn = 0;
-	u64 offset;
-
-	for (offset = start; offset <= end; offset++) {
-		if (notes->offsets[offset])
-			n_insn++;
-	}
-	return n_insn;
-}
-
-static void count_and_fill(struct annotation *notes, u64 start, u64 end,
-			   struct cyc_hist *ch)
-{
-	unsigned n_insn;
-	u64 offset;
-
-	n_insn = count_insn(notes, start, end);
-	if (n_insn && ch->num && ch->cycles) {
-		float ipc = n_insn / ((double)ch->cycles / (double)ch->num);
-
-		/* Hide data when there are too many overlaps. */
-		if (ch->reset >= 0x7fff || ch->reset >= ch->num / 2)
-			return;
-
-		for (offset = start; offset <= end; offset++) {
-			struct annotation_line *al = notes->offsets[offset];
-
-			if (al)
-				al->ipc = ipc;
-		}
-	}
-}
-
-/*
- * This should probably be in util/annotate.c to share with the tty
- * annotate, but right now we need the per byte offsets arrays,
- * which are only here.
- */
-static void annotate__compute_ipc(struct annotation *notes, size_t size)
-{
-	u64 offset;
-
-	if (!notes->src || !notes->src->cycles_hist)
-		return;
-
-	pthread_mutex_lock(&notes->lock);
-	for (offset = 0; offset < size; ++offset) {
-		struct cyc_hist *ch;
-
-		ch = &notes->src->cycles_hist[offset];
-		if (ch && ch->cycles) {
-			struct annotation_line *al;
-
-			if (ch->have_start)
-				count_and_fill(notes, ch->start, offset, ch);
-			al = notes->offsets[offset];
-			if (al && ch->num_aggr)
-				al->cycles = ch->cycles_aggr / ch->num_aggr;
-			notes->have_cycles = true;
-		}
-	}
-	pthread_mutex_unlock(&notes->lock);
-}
-
 static void annotate_browser__mark_jump_targets(struct annotate_browser *browser,
 						size_t size)
 {
@@ -1161,7 +1094,7 @@ int symbol__tui_annotate(struct symbol *sym, struct map *map,
 	}
 
 	annotate_browser__mark_jump_targets(&browser, size);
-	annotate__compute_ipc(notes, size);
+	annotation__compute_ipc(notes, size);
 
 	browser.addr_width = browser.target_width = browser.min_addr_width = hex_width(size);
 	browser.max_addr_width = hex_width(sym->end);

tools/perf/util/annotate.c

@@ -833,6 +833,66 @@ int addr_map_symbol__account_cycles(struct addr_map_symbol *ams,
 	return err;
 }
 
+static unsigned annotation__count_insn(struct annotation *notes, u64 start, u64 end)
+{
+	unsigned n_insn = 0;
+	u64 offset;
+
+	for (offset = start; offset <= end; offset++) {
+		if (notes->offsets[offset])
+			n_insn++;
+	}
+	return n_insn;
+}
+
+static void annotation__count_and_fill(struct annotation *notes, u64 start, u64 end, struct cyc_hist *ch)
+{
+	unsigned n_insn;
+	u64 offset;
+
+	n_insn = annotation__count_insn(notes, start, end);
+	if (n_insn && ch->num && ch->cycles) {
+		float ipc = n_insn / ((double)ch->cycles / (double)ch->num);
+
+		/* Hide data when there are too many overlaps. */
+		if (ch->reset >= 0x7fff || ch->reset >= ch->num / 2)
+			return;
+
+		for (offset = start; offset <= end; offset++) {
+			struct annotation_line *al = notes->offsets[offset];
+
+			if (al)
+				al->ipc = ipc;
+		}
+	}
+}
+
+void annotation__compute_ipc(struct annotation *notes, size_t size)
+{
+	u64 offset;
+
+	if (!notes->src || !notes->src->cycles_hist)
+		return;
+
+	pthread_mutex_lock(&notes->lock);
+	for (offset = 0; offset < size; ++offset) {
+		struct cyc_hist *ch;
+
+		ch = &notes->src->cycles_hist[offset];
+		if (ch && ch->cycles) {
+			struct annotation_line *al;
+
+			if (ch->have_start)
+				annotation__count_and_fill(notes, ch->start, offset, ch);
+			al = notes->offsets[offset];
+			if (al && ch->num_aggr)
+				al->cycles = ch->cycles_aggr / ch->num_aggr;
+			notes->have_cycles = true;
+		}
+	}
+	pthread_mutex_unlock(&notes->lock);
+}
+
 int addr_map_symbol__inc_samples(struct addr_map_symbol *ams, struct perf_sample *sample,
 				 int evidx)
 {

tools/perf/util/annotate.h

@@ -174,6 +174,8 @@ static inline int annotation__cycles_width(struct annotation *notes)
 	return notes->have_cycles ? ANNOTATION__IPC_WIDTH + ANNOTATION__CYCLES_WIDTH : 0;
 }
 
+void annotation__compute_ipc(struct annotation *notes, size_t size);
+
 static inline struct sym_hist *annotation__histogram(struct annotation *notes, int idx)
 {
 	return (((void *)&notes->src->histograms) +