nvhost:pva: Add VPU performance tracking

VPU performance tracking is added by using post-actions
and delivering results to the trace

JIRA PVA-1087

Change-Id: Ia0030348665c8c0857cf107f4f76d9cc6052f1f2
Signed-off-by: Saleh Dindar <sdindar@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1719719
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

2 files changed, 67 insertions, 1 deletions

diff --git a/include/trace/events/nvhost_pva.h b/include/trace/events/nvhost_pva.h
index 4571739f3..c921c5e08 100644
--- a/include/trace/events/nvhost_pva.h
+++ b/include/trace/events/nvhost_pva.h
@@ -140,6 +140,59 @@ TRACE_EVENT(nvhost_pva_task_stats,
                 __entry->complete_time, __entry->vpu_assigned)
 );
 
+TRACE_EVENT(nvhost_pva_task_vpu_perf,
+
+        TP_PROTO(
+                const char *name,
+                u32 index,
+                u32 count,
+                u32 sum,
+                u64 sum_squared,
+                u32 min,
+                u32 max
+                ),
+
+        TP_ARGS(
+                name,
+                index,
+                count,
+                sum,
+                sum_squared,
+                min,
+                max
+                ),
+
+        TP_STRUCT__entry(
+                __field(const char *, name)
+                __field(u32, index)
+                __field(u32, count)
+                __field(u32, sum)
+                __field(u64, sum_squared)
+                __field(u32, min)
+                __field(u32, max)
+                ),
+
+        TP_fast_assign(
+                __entry->name = name;
+                __entry->index = index;
+                __entry->count = count;
+                __entry->sum = sum;
+                __entry->sum_squared = sum_squared;
+                __entry->min = min;
+                __entry->max = max;
+                ),
+
+        TP_printk("%s\tindex: %u\tcount: %u\taverage: %u\t"
+                "variance: %llu\tminimum: %u\t"
+                "maximum: %u",
+                __entry->name, __entry->index, __entry->count,
+                __entry->sum / __entry->count,
+                ((u64)__entry->count * __entry->sum_squared -
+                        (u64)__entry->sum * (u64)__entry->sum)
+                        / __entry->count / __entry->count,
+                __entry->min, __entry->max)
+);
+
 #endif /*  _TRACE_NVHOST_PVA_H */
 
 /* This part must be outside protection */
diff --git a/include/uapi/linux/nvhost_events.h b/include/uapi/linux/nvhost_events.h
index 0f1da7064..1282ee38a 100644
--- a/include/uapi/linux/nvhost_events.h
+++ b/include/uapi/linux/nvhost_events.h
@@ -67,6 +67,16 @@ struct nvhost_task_end {
         u32 syncpt_thresh;
 } __packed;
 
+struct nvhost_vpu_perf_counter {
+        u32 operation;
+        u32 tag;
+        u32 count;
+        u32 average;
+        u64 variance;
+        u32 minimum;
+        u32 maximum;
+} __packed;
+
 enum {
         /* struct nvhost_task_submit */
         NVHOST_TASK_SUBMIT = 0,
@@ -77,7 +87,10 @@ enum {
         /* struct nvhost_task_end */
         NVHOST_TASK_END = 2,
 
-        NVHOST_NUM_EVENT_TYPES = 3
+        /* struct nvhost_vpu_perf_counter */
+        NVHOST_VPU_PERF_COUNTER = 3,
+
+        NVHOST_NUM_EVENT_TYPES = 4
 };
 
 enum {