Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull perf updates from Ingo Molnar:
 "This tree includes some late late perf items that missed the first
  round:

  tools:

   - Bash auto completion improvements, now we can auto complete the
     tools long options, tracepoint event names, etc, from Namhyung Kim.

   - Look up thread using tid instead of pid in 'perf sched'.

   - Move global variables into a perf_kvm struct, from David Ahern.

   - Hists refactorings, preparatory for improved 'diff' command, from
     Jiri Olsa.

   - Hists refactorings, preparatory for event group viewieng work, from
     Namhyung Kim.

   - Remove double negation on optional feature macro definitions, from
     Namhyung Kim.

   - Remove several cases of needless global variables, on most
     builtins.

   - misc fixes

  kernel:

   - sysfs support for IBS on AMD CPUs, from Robert Richter.

   - Support for an upcoming Intel CPU, the Xeon-Phi / Knights Corner
     HPC blade PMU, from Vince Weaver.

   - misc fixes"

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (46 commits)
  perf: Fix perf_cgroup_switch for sw-events
  perf: Clarify perf_cpu_context::active_pmu usage by renaming it to ::unique_pmu
  perf/AMD/IBS: Add sysfs support
  perf hists: Add more helpers for hist entry stat
  perf hists: Move he->stat.nr_events initialization to a template
  perf hists: Introduce struct he_stat
  perf diff: Removing the total_period argument from output code
  perf tool: Add hpp interface to enable/disable hpp column
  perf tools: Removing hists pair argument from output path
  perf hists: Separate overhead and baseline columns
  perf diff: Refactor diff displacement possition info
  perf hists: Add struct hists pointer to struct hist_entry
  perf tools: Complete tracepoint event names
  perf/x86: Add support for Intel Xeon-Phi Knights Corner PMU
  perf evlist: Remove some unused methods
  perf evlist: Introduce add_newtp method
  perf kvm: Move global variables into a perf_kvm struct
  perf tools: Convert to BACKTRACE_SUPPORT
  perf tools: Long option completion support for each subcommands
  perf tools: Complete long option names of perf command
  ...

1 files changed, 16 insertions, 29 deletions

diff --git a/tools/perf/ui/stdio/hist.c b/tools/perf/ui/stdio/hist.c
index 882461a42830..fbd4e32d0743 100644
--- a/tools/perf/ui/stdio/hist.c
+++ b/tools/perf/ui/stdio/hist.c
@@ -271,7 +271,7 @@ static size_t hist_entry_callchain__fprintf(struct hist_entry *he,
 {
 	switch (callchain_param.mode) {
 	case CHAIN_GRAPH_REL:
-		return callchain__fprintf_graph(fp, &he->sorted_chain, he->period,
+		return callchain__fprintf_graph(fp, &he->sorted_chain, he->stat.period,
 						left_margin);
 		break;
 	case CHAIN_GRAPH_ABS:
@@ -292,9 +292,10 @@ static size_t hist_entry_callchain__fprintf(struct hist_entry *he,
 
 static size_t hist_entry__callchain_fprintf(struct hist_entry *he,
 					    struct hists *hists,
-					    u64 total_period, FILE *fp)
+					    FILE *fp)
 {
 	int left_margin = 0;
+	u64 total_period = hists->stats.total_period;
 
 	if (sort__first_dimension == SORT_COMM) {
 		struct sort_entry *se = list_first_entry(&hist_entry__sort_list,
@@ -307,17 +308,13 @@ static size_t hist_entry__callchain_fprintf(struct hist_entry *he,
 }
 
 static int hist_entry__fprintf(struct hist_entry *he, size_t size,
-			       struct hists *hists, struct hists *pair_hists,
-			       long displacement, u64 total_period, FILE *fp)
+			       struct hists *hists, FILE *fp)
 {
 	char bf[512];
 	int ret;
 	struct perf_hpp hpp = {
 		.buf		= bf,
 		.size		= size,
-		.total_period	= total_period,
-		.displacement	= displacement,
-		.ptr		= pair_hists,
 	};
 	bool color = !symbol_conf.field_sep;
 
@@ -330,22 +327,17 @@ static int hist_entry__fprintf(struct hist_entry *he, size_t size,
 	ret = fprintf(fp, "%s\n", bf);
 
 	if (symbol_conf.use_callchain)
-		ret += hist_entry__callchain_fprintf(he, hists,
-						     total_period, fp);
+		ret += hist_entry__callchain_fprintf(he, hists, fp);
 
 	return ret;
 }
 
-size_t hists__fprintf(struct hists *hists, struct hists *pair,
-		      bool show_displacement, bool show_header, int max_rows,
+size_t hists__fprintf(struct hists *hists, bool show_header, int max_rows,
 		      int max_cols, FILE *fp)
 {
 	struct sort_entry *se;
 	struct rb_node *nd;
 	size_t ret = 0;
-	u64 total_period;
-	unsigned long position = 1;
-	long displacement = 0;
 	unsigned int width;
 	const char *sep = symbol_conf.field_sep;
 	const char *col_width = symbol_conf.col_width_list_str;
@@ -354,8 +346,8 @@ size_t hists__fprintf(struct hists *hists, struct hists *pair,
 	struct perf_hpp dummy_hpp = {
 		.buf	= bf,
 		.size	= sizeof(bf),
-		.ptr	= pair,
 	};
+	bool first = true;
 
 	init_rem_hits();
 
@@ -367,8 +359,10 @@ size_t hists__fprintf(struct hists *hists, struct hists *pair,
 		if (!perf_hpp__format[idx].cond)
 			continue;
 
-		if (idx)
+		if (!first)
 			fprintf(fp, "%s", sep ?: "  ");
+		else
+			first = false;
 
 		perf_hpp__format[idx].header(&dummy_hpp);
 		fprintf(fp, "%s", bf);
@@ -403,6 +397,8 @@ size_t hists__fprintf(struct hists *hists, struct hists *pair,
 	if (sep)
 		goto print_entries;
 
+	first = true;
+
 	fprintf(fp, "# ");
 	for (idx = 0; idx < PERF_HPP__MAX_INDEX; idx++) {
 		unsigned int i;
@@ -410,8 +406,10 @@ size_t hists__fprintf(struct hists *hists, struct hists *pair,
 		if (!perf_hpp__format[idx].cond)
 			continue;
 
-		if (idx)
+		if (!first)
 			fprintf(fp, "%s", sep ?: "  ");
+		else
+			first = false;
 
 		width = perf_hpp__format[idx].width(&dummy_hpp);
 		for (i = 0; i < width; i++)
@@ -441,24 +439,13 @@ size_t hists__fprintf(struct hists *hists, struct hists *pair,
 		goto out;
 
 print_entries:
-	total_period = hists->stats.total_period;
-
 	for (nd = rb_first(&hists->entries); nd; nd = rb_next(nd)) {
 		struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node);
 
 		if (h->filtered)
 			continue;
 
-		if (show_displacement) {
-			if (h->pair != NULL)
-				displacement = ((long)h->pair->position -
-					        (long)position);
-			else
-				displacement = 0;
-			++position;
-		}
-		ret += hist_entry__fprintf(h, max_cols, hists, pair, displacement,
-					   total_period, fp);
+		ret += hist_entry__fprintf(h, max_cols, hists, fp);
 
 		if (max_rows && ++nr_rows >= max_rows)
 			goto out;