drm/msm/adreno: reset ringbuffer in hw_init

We need to do this also in resume path when we need to re-hw_init().

Signed-off-by: Rob Clark <robdclark@gmail.com>

diff --git a/drivers/gpu/drm/msm/adreno/adreno_gpu.c b/drivers/gpu/drm/msm/adreno/adreno_gpu.c
index 823f9df..05a3d1f 100644 (file)
--- a/drivers/gpu/drm/msm/adreno/adreno_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.c
@@ -68,6 +68,14 @@ int adreno_hw_init(struct msm_gpu *gpu)
                return ret;
        }
 
+       /* reset ringbuffer: */
+       gpu->rb->cur = gpu->rb->start;
+
+       /* reset completed fence seqno: */
+       adreno_gpu->memptrs->fence = gpu->fctx->completed_fence;
+       adreno_gpu->memptrs->rptr  = 0;
+       adreno_gpu->memptrs->wptr  = 0;
+
        /* Setup REG_CP_RB_CNTL: */
        adreno_gpu_write(adreno_gpu, REG_ADRENO_CP_RB_CNTL,
                        /* size is log2(quad-words): */
@@ -111,7 +119,6 @@ uint32_t adreno_last_fence(struct msm_gpu *gpu)
 
 void adreno_recover(struct msm_gpu *gpu)
 {
-       struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu);
        struct drm_device *dev = gpu->dev;
        int ret;
 
@@ -119,15 +126,6 @@ void adreno_recover(struct msm_gpu *gpu)
        // so maybe continuing to call ->pm_suspend/resume() is better?
 
        gpu->funcs->pm_suspend(gpu);
-
-       /* reset ringbuffer: */
-       gpu->rb->cur = gpu->rb->start;
-
-       /* reset completed fence seqno: */
-       adreno_gpu->memptrs->fence = gpu->fctx->completed_fence;
-       adreno_gpu->memptrs->rptr  = 0;
-       adreno_gpu->memptrs->wptr  = 0;
-
        gpu->funcs->pm_resume(gpu);
 
        ret = msm_gpu_hw_init(gpu);