diff options
Diffstat (limited to 'drivers/gpu/drm/msm/msm_ringbuffer.h')
| -rw-r--r-- | drivers/gpu/drm/msm/msm_ringbuffer.h | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/gpu/drm/msm/msm_ringbuffer.h b/drivers/gpu/drm/msm/msm_ringbuffer.h index 0987d6bf848c..4956d1bc5d0e 100644 --- a/drivers/gpu/drm/msm/msm_ringbuffer.h +++ b/drivers/gpu/drm/msm/msm_ringbuffer.h @@ -46,7 +46,12 @@ struct msm_ringbuffer { struct msm_rbmemptrs *memptrs; uint64_t memptrs_iova; struct msm_fence_context *fctx; - spinlock_t lock; + + /* + * preempt_lock protects preemption and serializes wptr updates against + * preemption. Can be aquired from irq context. + */ + spinlock_t preempt_lock; }; struct msm_ringbuffer *msm_ringbuffer_new(struct msm_gpu *gpu, int id, |