diff options
Diffstat (limited to 'drivers/gpu/drm/msm/msm_gem.c')
| -rw-r--r-- | drivers/gpu/drm/msm/msm_gem.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/gpu/drm/msm/msm_gem.c b/drivers/gpu/drm/msm/msm_gem.c index d1455fbc980e..d35d03c2935d 100644 --- a/drivers/gpu/drm/msm/msm_gem.c +++ b/drivers/gpu/drm/msm/msm_gem.c @@ -546,6 +546,26 @@ int msm_gem_cpu_fini(struct drm_gem_object *obj) return 0; } +void msm_gem_sync(struct drm_gem_object *obj, u32 op) +{ + struct drm_device *dev = obj->dev; + struct msm_gem_object *msm_obj = to_msm_bo(obj); + + if (msm_obj->flags & (MSM_BO_WC|MSM_BO_UNCACHED)) + return; + + switch (op) { + case MSM_GEM_SYNC_TO_CPU: + dma_sync_sg_for_cpu(dev->dev, msm_obj->sgt->sgl, + msm_obj->sgt->nents, DMA_BIDIRECTIONAL); + break; + case MSM_GEM_SYNC_TO_DEV: + dma_sync_sg_for_device(dev->dev, msm_obj->sgt->sgl, + msm_obj->sgt->nents, DMA_BIDIRECTIONAL); + break; + } +} + #ifdef CONFIG_DEBUG_FS void msm_gem_describe(struct drm_gem_object *obj, struct seq_file *m) { |