[PATCH 1/2] drm/xe: Use a helper to get delta run ticks from the exec queue

[Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>]

As per earlier review feedback - code manipulating exec queue fields
should not be present in xe_device.c. Use a helper to get the delta run
ticks from exec queue.

Fixes: ce62827bc294 ("drm/xe: Do not access xe file when updating exec queue run_ticks")
Signed-off-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
---
 drivers/gpu/drm/xe/xe_drm_client.c |  7 ++-----
 drivers/gpu/drm/xe/xe_exec_queue.c | 18 ++++++++++++++++++
 drivers/gpu/drm/xe/xe_exec_queue.h |  1 +
 3 files changed, 21 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/xe/xe_drm_client.c b/drivers/gpu/drm/xe/xe_drm_client.c
index 4a19b771e3a0..e0c4a50d372c 100644
--- a/drivers/gpu/drm/xe/xe_drm_client.c
+++ b/drivers/gpu/drm/xe/xe_drm_client.c
@@ -251,11 +251,8 @@ static void show_run_ticks(struct drm_printer *p, struct drm_file *file)
 
 	/* Accumulate all the exec queues from this client */
 	mutex_lock(&xef->exec_queue.lock);
-	xa_for_each(&xef->exec_queue.xa, i, q) {
-		xe_exec_queue_update_run_ticks(q);
-		xef->run_ticks[q->class] += q->run_ticks - q->old_run_ticks;
-		q->old_run_ticks = q->run_ticks;
-	}
+	xa_for_each(&xef->exec_queue.xa, i, q)
+		xef->run_ticks[q->class] += xe_exec_queue_delta_run_ticks(q);
 	mutex_unlock(&xef->exec_queue.lock);
 
 	/* Get the total GPU cycles */
diff --git a/drivers/gpu/drm/xe/xe_exec_queue.c b/drivers/gpu/drm/xe/xe_exec_queue.c
index 0ba37835849b..4d90a16745d2 100644
--- a/drivers/gpu/drm/xe/xe_exec_queue.c
+++ b/drivers/gpu/drm/xe/xe_exec_queue.c
@@ -786,6 +786,24 @@ void xe_exec_queue_update_run_ticks(struct xe_exec_queue *q)
 	q->run_ticks += (new_ts - old_ts) * q->width;
 }
 
+/**
+ * xe_exec_queue_delta_run_ticks() - Get delta of queue run_ticks 
+ * @q: The exec queue
+ *
+ * Update run ticks for the specific queue and then return the delta when
+ * compared to the previous value of run ticks.
+ */
+u64 xe_exec_queue_delta_run_ticks(struct xe_exec_queue *q)
+{
+	u64 delta_ticks;
+
+	xe_exec_queue_update_run_ticks(q);
+	delta_ticks = q->run_ticks - q->old_run_ticks;
+	q->old_run_ticks = q->run_ticks;
+
+	return delta_ticks;
+}
+
 void xe_exec_queue_kill(struct xe_exec_queue *q)
 {
 	struct xe_exec_queue *eq = q, *next;
diff --git a/drivers/gpu/drm/xe/xe_exec_queue.h b/drivers/gpu/drm/xe/xe_exec_queue.h
index 289a3a51d2a2..42f683e5d88a 100644
--- a/drivers/gpu/drm/xe/xe_exec_queue.h
+++ b/drivers/gpu/drm/xe/xe_exec_queue.h
@@ -76,5 +76,6 @@ struct dma_fence *xe_exec_queue_last_fence_get(struct xe_exec_queue *e,
 void xe_exec_queue_last_fence_set(struct xe_exec_queue *e, struct xe_vm *vm,
 				  struct dma_fence *fence);
 void xe_exec_queue_update_run_ticks(struct xe_exec_queue *q);
+u64 xe_exec_queue_delta_run_ticks(struct xe_exec_queue *q);
 
 #endif
-- 
2.34.1