perf timechart: Move power_events list to 'struct timechart'

Removing another global variable.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stanislav Fomichev <stfomichev@yandex-team.ru>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-2akef3p9caau56itf5mugd2b@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

1 files changed, 16 insertions, 15 deletions

diff --git a/tools/perf/builtin-timechart.c b/tools/perf/builtin-timechart.c
index 0c955acc08a2..8ee0ff1777a8 100644
--- a/tools/perf/builtin-timechart.c
+++ b/tools/perf/builtin-timechart.c
@@ -42,10 +42,12 @@
 #define PWR_EVENT_EXIT -1
 
 struct per_pid;
+struct power_event;
 
 struct timechart {
         struct perf_tool        tool;
         struct per_pid          *all_data;
+        struct power_event      *power_events;
         int                     proc_num;
         unsigned int            numcpus;
         u64                     min_freq,       /* Lowest CPU frequency seen */
@@ -146,7 +148,6 @@ struct wake_event {
         const char *backtrace;
 };
 
-static struct power_event    *power_events;
 static struct wake_event     *wake_events;
 
 struct process_filter {
@@ -312,7 +313,7 @@ static void c_state_start(int cpu, u64 timestamp, int state)
         cpus_cstate_state[cpu] = state;
 }
 
-static void c_state_end(int cpu, u64 timestamp)
+static void c_state_end(struct timechart *tchart, int cpu, u64 timestamp)
 {
         struct power_event *pwr = zalloc(sizeof(*pwr));
 
@@ -324,9 +325,9 @@ static void c_state_end(int cpu, u64 timestamp)
         pwr->end_time = timestamp;
         pwr->cpu = cpu;
         pwr->type = CSTATE;
-        pwr->next = power_events;
+        pwr->next = tchart->power_events;
 
-        power_events = pwr;
+        tchart->power_events = pwr;
 }
 
 static void p_state_change(struct timechart *tchart, int cpu, u64 timestamp, u64 new_freq)
@@ -345,12 +346,12 @@ static void p_state_change(struct timechart *tchart, int cpu, u64 timestamp, u64
         pwr->end_time = timestamp;
         pwr->cpu = cpu;
         pwr->type = PSTATE;
-        pwr->next = power_events;
+        pwr->next = tchart->power_events;
 
         if (!pwr->start_time)
                 pwr->start_time = tchart->first_time;
 
-        power_events = pwr;
+        tchart->power_events = pwr;
 
         cpus_pstate_state[cpu] = new_freq;
         cpus_pstate_start_times[cpu] = timestamp;
@@ -551,7 +552,7 @@ process_sample_cpu_idle(struct timechart *tchart __maybe_unused,
         u32 cpu_id = perf_evsel__intval(evsel, sample, "cpu_id");
 
         if (state == (u32)PWR_EVENT_EXIT)
-                c_state_end(cpu_id, sample->time);
+                c_state_end(tchart, cpu_id, sample->time);
         else
                 c_state_start(cpu_id, sample->time, state);
         return 0;
@@ -614,12 +615,12 @@ process_sample_power_start(struct timechart *tchart __maybe_unused,
 }
 
 static int
-process_sample_power_end(struct timechart *tchart __maybe_unused,
+process_sample_power_end(struct timechart *tchart,
                          struct perf_evsel *evsel __maybe_unused,
                          struct perf_sample *sample,
                          const char *backtrace __maybe_unused)
 {
-        c_state_end(sample->cpu, sample->time);
+        c_state_end(tchart, sample->cpu, sample->time);
         return 0;
 }
 
@@ -658,9 +659,9 @@ static void end_sample_processing(struct timechart *tchart)
                 pwr->end_time = tchart->last_time;
                 pwr->cpu = cpu;
                 pwr->type = CSTATE;
-                pwr->next = power_events;
+                pwr->next = tchart->power_events;
 
-                power_events = pwr;
+                tchart->power_events = pwr;
 #endif
                 /* P state */
 
@@ -673,13 +674,13 @@ static void end_sample_processing(struct timechart *tchart)
                 pwr->end_time = tchart->last_time;
                 pwr->cpu = cpu;
                 pwr->type = PSTATE;
-                pwr->next = power_events;
+                pwr->next = tchart->power_events;
 
                 if (!pwr->start_time)
                         pwr->start_time = tchart->first_time;
                 if (!pwr->state)
                         pwr->state = tchart->min_freq;
-                power_events = pwr;
+                tchart->power_events = pwr;
         }
 }
 
@@ -735,7 +736,7 @@ static void sort_pids(struct timechart *tchart)
 static void draw_c_p_states(struct timechart *tchart)
 {
         struct power_event *pwr;
-        pwr = power_events;
+        pwr = tchart->power_events;
 
         /*
          * two pass drawing so that the P state bars are on top of the C state blocks
@@ -746,7 +747,7 @@ static void draw_c_p_states(struct timechart *tchart)
                 pwr = pwr->next;
         }
 
-        pwr = power_events;
+        pwr = tchart->power_events;
         while (pwr) {
                 if (pwr->type == PSTATE) {
                         if (!pwr->state)