gpu: nvgpu: pg stat read update

- Added struct pmu_pg_stats_data to extract
data from multiple version of pmu pg statistics

- Added pmu_pg_stats_v2 interface to fetch
PG statistics data from PMU

- Added MSCG debugfs node to read mscg
statistics from PMU.

- Added pmu_elpg_statistics HAL support for
  gp106 PG statistics read.

- Made changes to gp104/gp106
  pmu_elpg_statistics HAL to support
  for struct pmu_pg_stats_data

JIRA DNVGPU-165

Change-Id: I2b9e89c0fae90deb45006c4478170b9a97b56603
Signed-off-by: Mahantesh Kumbar <mkumbar@nvidia.com>
Reviewed-on: http://git-master/r/1252798
(cherry picked from commit 3c073b15fd991db8d65b3171b02c161294be40cd)
Reviewed-on: http://git-master/r/1271615
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 8 insertions, 6 deletions

diff --git a/drivers/gpu/nvgpu/gp10b/pmu_gp10b.c b/drivers/gpu/nvgpu/gp10b/pmu_gp10b.c
index 12337934..cf702ac6 100644
--- a/drivers/gpu/nvgpu/gp10b/pmu_gp10b.c
+++ b/drivers/gpu/nvgpu/gp10b/pmu_gp10b.c
@@ -1,7 +1,7 @@
 /*
  * GP10B PMU
  *
- * Copyright (c) 2015-2016, NVIDIA CORPORATION.  All rights reserved.
+ * Copyright (c) 2015-2017, NVIDIA CORPORATION.  All rights reserved.
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms and conditions of the GNU General Public License,
@@ -250,8 +250,8 @@ int gp10b_pg_gr_init(struct gk20a *g, u32 pg_engine_id)
         return 0;
 }
 
-void gp10b_pmu_elpg_statistics(struct gk20a *g, u32 pg_engine_id,
-                u32 *ingating_time, u32 *ungating_time, u32 *gating_cnt)
+static void gp10b_pmu_elpg_statistics(struct gk20a *g, u32 pg_engine_id,
+                struct pmu_pg_stats_data *pg_stat_data)
 {
         struct pmu_gk20a *pmu = &g->pmu;
         struct pmu_pg_stats_v1 stats;
@@ -260,9 +260,11 @@ void gp10b_pmu_elpg_statistics(struct gk20a *g, u32 pg_engine_id,
                 pmu->stat_dmem_offset[pg_engine_id],
                 (u8 *)&stats, sizeof(struct pmu_pg_stats_v1), 0);
 
-        *ingating_time = stats.total_sleep_timeus;
-        *ungating_time = stats.total_nonsleep_timeus;
-        *gating_cnt = stats.entry_count;
+        pg_stat_data->ingating_time = stats.total_sleep_timeus;
+        pg_stat_data->ungating_time = stats.total_nonsleep_timeus;
+        pg_stat_data->gating_cnt = stats.entry_count;
+        pg_stat_data->avg_entry_latency_us = stats.entrylatency_avgus;
+        pg_stat_data->avg_exit_latency_us = stats.exitlatency_avgus;
 }
 
 static int gp10b_pmu_setup_elpg(struct gk20a *g)