From: Rob Clark <robdclark@xxxxxxxxxxxx> The flags are only accessed (1) when submit is constructed, before enqueuing to gpu sched (ie. when still visible to only the task calling the submit ioctl), (2) here, where we own a reference to the submit and are serialized on the gpu sched thread, and (3) after the submit is retired and last reference is dropped, which is serialized on the submit's reference count. Hence locking is unneeded here. Signed-off-by: Rob Clark <robdclark@xxxxxxxxxxxx> --- drivers/gpu/drm/msm/msm_ringbuffer.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/msm/msm_ringbuffer.c b/drivers/gpu/drm/msm/msm_ringbuffer.c index a62b45e5a8c3..a80447c8764e 100644 --- a/drivers/gpu/drm/msm/msm_ringbuffer.c +++ b/drivers/gpu/drm/msm/msm_ringbuffer.c @@ -26,8 +26,8 @@ static struct dma_fence *msm_job_run(struct drm_sched_job *job) msm_gem_lock(obj); msm_gem_unpin_vma_fenced(submit->bos[i].vma, fctx); msm_gem_unpin_locked(obj); - submit->bos[i].flags &= ~(BO_VMA_PINNED | BO_OBJ_PINNED); msm_gem_unlock(obj); + submit->bos[i].flags &= ~(BO_VMA_PINNED | BO_OBJ_PINNED); } /* TODO move submit path over to using a per-ring lock.. */ -- 2.39.2
