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drm/msm: drop cache sync hack

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Now that it isn't causing problems to use dma_map/unmap, we can drop the
hack of using dma_sync in certain cases.

Signed-off-by: Rob Clark <robdclark@chromium.org>
This commit is contained in:
Rob Clark
2020-07-13 11:16:42 -07:00
parent f032b68101
commit e1bf29e022
1 changed files with 4 additions and 14 deletions
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18
drivers/gpu/drm/msm/msm_gem.c
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@@ -52,26 +52,16 @@ static void sync_for_device(struct msm_gem_object *msm_obj)
{ {
struct device *dev = msm_obj->base.dev->dev; struct device *dev = msm_obj->base.dev->dev;
if (get_dma_ops(dev) && IS_ENABLED(CONFIG_ARM64)) { dma_map_sg(dev, msm_obj->sgt->sgl,
dma_sync_sg_for_device(dev, msm_obj->sgt->sgl, msm_obj->sgt->nents, DMA_BIDIRECTIONAL);
msm_obj->sgt->nents, DMA_BIDIRECTIONAL);
} else {
dma_map_sg(dev, msm_obj->sgt->sgl,
msm_obj->sgt->nents, DMA_BIDIRECTIONAL);
}
} }
static void sync_for_cpu(struct msm_gem_object *msm_obj) static void sync_for_cpu(struct msm_gem_object *msm_obj)
{ {
struct device *dev = msm_obj->base.dev->dev; struct device *dev = msm_obj->base.dev->dev;
if (get_dma_ops(dev) && IS_ENABLED(CONFIG_ARM64)) { dma_unmap_sg(dev, msm_obj->sgt->sgl,
dma_sync_sg_for_cpu(dev, msm_obj->sgt->sgl, msm_obj->sgt->nents, DMA_BIDIRECTIONAL);
msm_obj->sgt->nents, DMA_BIDIRECTIONAL);
} else {
dma_unmap_sg(dev, msm_obj->sgt->sgl,
msm_obj->sgt->nents, DMA_BIDIRECTIONAL);
}
} }
/* allocate pages from VRAM carveout, used when no IOMMU: */ /* allocate pages from VRAM carveout, used when no IOMMU: */