In preparation for GuC pmu stats, add a name to the execlists stats
structure so that it can be differentiated from the GuC stats.
Signed-off-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@xxxxxxxxx>
---
drivers/gpu/drm/i915/gt/intel_engine_cs.c | 14 +++---
drivers/gpu/drm/i915/gt/intel_engine_stats.h | 33 +++++++------
drivers/gpu/drm/i915/gt/intel_engine_types.h | 52 +++++++++++---------
3 files changed, 53 insertions(+), 46 deletions(-)
diff --git a/drivers/gpu/drm/i915/gt/intel_engine_cs.c b/drivers/gpu/drm/i915/gt/intel_engine_cs.c
index 2ae57e4656a3..38436f4b5706 100644
--- a/drivers/gpu/drm/i915/gt/intel_engine_cs.c
+++ b/drivers/gpu/drm/i915/gt/intel_engine_cs.c
@@ -361,7 +361,7 @@ static int intel_engine_setup(struct intel_gt *gt, enum intel_engine_id id)
DRIVER_CAPS(i915)->has_logical_contexts = true;
ewma__engine_latency_init(&engine->latency);
- seqcount_init(&engine->stats.lock);
+ seqcount_init(&engine->stats.execlists.lock);
ATOMIC_INIT_NOTIFIER_HEAD(&engine->context_status_notifier);
@@ -1876,15 +1876,16 @@ void intel_engine_dump(struct intel_engine_cs *engine,
static ktime_t __intel_engine_get_busy_time(struct intel_engine_cs *engine,
ktime_t *now)
{
- ktime_t total = engine->stats.total;
+ struct intel_engine_execlists_stats *stats = &engine->stats.execlists;
+ ktime_t total = stats->total;
/*
* If the engine is executing something at the moment
* add it to the total.
*/
*now = ktime_get();
- if (READ_ONCE(engine->stats.active))
- total = ktime_add(total, ktime_sub(*now, engine->stats.start));
+ if (READ_ONCE(stats->active))
+ total = ktime_add(total, ktime_sub(*now, stats->start));
return total;
}
@@ -1898,13 +1899,14 @@ static ktime_t __intel_engine_get_busy_time(struct intel_engine_cs *engine,
*/
ktime_t intel_engine_get_busy_time(struct intel_engine_cs *engine, ktime_t *now)
{
+ struct intel_engine_execlists_stats *stats = &engine->stats.execlists;
unsigned int seq;
ktime_t total;
do {
- seq = read_seqcount_begin(&engine->stats.lock);
+ seq = read_seqcount_begin(&stats->lock);
total = __intel_engine_get_busy_time(engine, now);
- } while (read_seqcount_retry(&engine->stats.lock, seq));
+ } while (read_seqcount_retry(&stats->lock, seq));
return total;
}
diff --git a/drivers/gpu/drm/i915/gt/intel_engine_stats.h b/drivers/gpu/drm/i915/gt/intel_engine_stats.h
index 24fbdd94351a..8e762d683e50 100644
--- a/drivers/gpu/drm/i915/gt/intel_engine_stats.h
+++ b/drivers/gpu/drm/i915/gt/intel_engine_stats.h
@@ -15,45 +15,46 @@
static inline void intel_engine_context_in(struct intel_engine_cs *engine)
{
+ struct intel_engine_execlists_stats *stats = &engine->stats.execlists;
unsigned long flags;
- if (engine->stats.active) {
- engine->stats.active++;
+ if (stats->active) {
+ stats->active++;
return;
}
/* The writer is serialised; but the pmu reader may be from hardirq */
local_irq_save(flags);
- write_seqcount_begin(&engine->stats.lock);
+ write_seqcount_begin(&stats->lock);
- engine->stats.start = ktime_get();
- engine->stats.active++;
+ stats->start = ktime_get();
+ stats->active++;
- write_seqcount_end(&engine->stats.lock);
+ write_seqcount_end(&stats->lock);
local_irq_restore(flags);
- GEM_BUG_ON(!engine->stats.active);
+ GEM_BUG_ON(!stats->active);
}
static inline void intel_engine_context_out(struct intel_engine_cs *engine)
{
+ struct intel_engine_execlists_stats *stats = &engine->stats.execlists;
unsigned long flags;
- GEM_BUG_ON(!engine->stats.active);
- if (engine->stats.active > 1) {
- engine->stats.active--;
+ GEM_BUG_ON(!stats->active);
+ if (stats->active > 1) {
+ stats->active--;
return;
}
local_irq_save(flags);
- write_seqcount_begin(&engine->stats.lock);
+ write_seqcount_begin(&stats->lock);
- engine->stats.active--;
- engine->stats.total =
- ktime_add(engine->stats.total,
- ktime_sub(ktime_get(), engine->stats.start));
+ stats->active--;
+ stats->total = ktime_add(stats->total,
+ ktime_sub(ktime_get(), stats->start));
- write_seqcount_end(&engine->stats.lock);
+ write_seqcount_end(&stats->lock);
local_irq_restore(flags);
}
diff --git a/drivers/gpu/drm/i915/gt/intel_engine_types.h b/drivers/gpu/drm/i915/gt/intel_engine_types.h
index 5ae1207c363b..316d8551d22f 100644
--- a/drivers/gpu/drm/i915/gt/intel_engine_types.h
+++ b/drivers/gpu/drm/i915/gt/intel_engine_types.h
@@ -257,6 +257,33 @@ struct intel_engine_execlists {
#define INTEL_ENGINE_CS_MAX_NAME 8
+struct intel_engine_execlists_stats {
+ /**
+ * @active: Number of contexts currently scheduled in.
+ */
+ unsigned int active;
+
+ /**
+ * @lock: Lock protecting the below fields.
+ */
+ seqcount_t lock;
+
+ /**
+ * @total: Total time this engine was busy.
+ *
+ * Accumulated time not counting the most recent block in cases where
+ * engine is currently busy (active > 0).
+ */
+ ktime_t total;
+
+ /**
+ * @start: Timestamp of the last idle to active transition.
+ *
+ * Idle is defined as active == 0, active is active > 0.
+ */
+ ktime_t start;
+};
+
struct intel_engine_cs {
struct drm_i915_private *i915;
struct intel_gt *gt;
@@ -481,30 +508,7 @@ struct intel_engine_cs {
u32 (*get_cmd_length_mask)(u32 cmd_header);
struct {
- /**
- * @active: Number of contexts currently scheduled in.
- */
- unsigned int active;
-
- /**
- * @lock: Lock protecting the below fields.
- */
- seqcount_t lock;
-
- /**
- * @total: Total time this engine was busy.
- *
- * Accumulated time not counting the most recent block in cases
- * where engine is currently busy (active > 0).
- */
- ktime_t total;
-
- /**
- * @start: Timestamp of the last idle to active transition.
- *
- * Idle is defined as active == 0, active is active > 0.
- */
- ktime_t start;
+ struct intel_engine_execlists_stats execlists;
/**
* @rps: Utilisation at last RPS sampling.
--
2.20.1
