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Subject[PATCH] drm/msm: drop cache sync hack
Date
From: Rob Clark <robdclark@chromium.org>

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>
---
drivers/gpu/drm/msm/msm_gem.c | 18 ++++--------------
1 file changed, 4 insertions(+), 14 deletions(-)

diff --git a/drivers/gpu/drm/msm/msm_gem.c b/drivers/gpu/drm/msm/msm_gem.c
index b2f49152b4d4..3cb7aeb93fd3 100644
--- a/drivers/gpu/drm/msm/msm_gem.c
+++ b/drivers/gpu/drm/msm/msm_gem.c
@@ -52,26 +52,16 @@ static void sync_for_device(struct msm_gem_object *msm_obj)
{
struct device *dev = msm_obj->base.dev->dev;

- if (get_dma_ops(dev) && IS_ENABLED(CONFIG_ARM64)) {
- dma_sync_sg_for_device(dev, msm_obj->sgt->sgl,
- msm_obj->sgt->nents, DMA_BIDIRECTIONAL);
- } else {
- dma_map_sg(dev, msm_obj->sgt->sgl,
- msm_obj->sgt->nents, DMA_BIDIRECTIONAL);
- }
+ 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)
{
struct device *dev = msm_obj->base.dev->dev;

- if (get_dma_ops(dev) && IS_ENABLED(CONFIG_ARM64)) {
- dma_sync_sg_for_cpu(dev, msm_obj->sgt->sgl,
- msm_obj->sgt->nents, DMA_BIDIRECTIONAL);
- } else {
- dma_unmap_sg(dev, msm_obj->sgt->sgl,
- msm_obj->sgt->nents, DMA_BIDIRECTIONAL);
- }
+ dma_unmap_sg(dev, msm_obj->sgt->sgl,
+ msm_obj->sgt->nents, DMA_BIDIRECTIONAL);
}

/* allocate pages from VRAM carveout, used when no IOMMU: */
--
2.26.2
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