drm/amdgpu: add amd_sched_next_queued_seq function

This function is used to get the next queued sequence number

Signed-off-by: Jammy Zhou <Jammy.Zhou@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 12 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/scheduler/gpu_scheduler.c b/drivers/gpu/drm/amd/scheduler/gpu_scheduler.c
index 55ebbf0f8cd0..4ad1825e713e 100644
--- a/drivers/gpu/drm/amd/scheduler/gpu_scheduler.c
+++ b/drivers/gpu/drm/amd/scheduler/gpu_scheduler.c
@@ -507,3 +507,15 @@ void amd_sched_emit(struct amd_context_entity *c_entity, uint64_t seq)
 	atomic64_set(&c_entity->last_emitted_v_seq, seq);
 	wake_up_all(&c_entity->wait_emit);
 }
+
+/**
+ * Get next queued sequence number
+ *
+ * @entity The context entity
+ *
+ * return the next queued sequence number
+*/
+uint64_t amd_sched_next_queued_seq(struct amd_context_entity *c_entity)
+{
+	return atomic64_read(&c_entity->last_queued_v_seq) + 1;
+}