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path: root/drivers/gpu/drm/etnaviv/etnaviv_mmu.c
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Diffstat (limited to 'drivers/gpu/drm/etnaviv/etnaviv_mmu.c')
-rw-r--r--drivers/gpu/drm/etnaviv/etnaviv_mmu.c15
1 files changed, 4 insertions, 11 deletions
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_mmu.c b/drivers/gpu/drm/etnaviv/etnaviv_mmu.c
index 3607d348c298..15d9fa3879e5 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_mmu.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_mmu.c
@@ -73,13 +73,13 @@ static int etnaviv_iommu_map(struct etnaviv_iommu_context *context, u32 iova,
struct sg_table *sgt, unsigned len, int prot)
{ struct scatterlist *sg;
unsigned int da = iova;
- unsigned int i, j;
+ unsigned int i;
int ret;
if (!context || !sgt)
return -EINVAL;
- for_each_sg(sgt->sgl, sg, sgt->nents, i) {
+ for_each_sgtable_dma_sg(sgt, sg, i) {
u32 pa = sg_dma_address(sg) - sg->offset;
size_t bytes = sg_dma_len(sg) + sg->offset;
@@ -95,14 +95,7 @@ static int etnaviv_iommu_map(struct etnaviv_iommu_context *context, u32 iova,
return 0;
fail:
- da = iova;
-
- for_each_sg(sgt->sgl, sg, i, j) {
- size_t bytes = sg_dma_len(sg) + sg->offset;
-
- etnaviv_context_unmap(context, da, bytes);
- da += bytes;
- }
+ etnaviv_context_unmap(context, iova, da - iova);
return ret;
}
@@ -113,7 +106,7 @@ static void etnaviv_iommu_unmap(struct etnaviv_iommu_context *context, u32 iova,
unsigned int da = iova;
int i;
- for_each_sg(sgt->sgl, sg, sgt->nents, i) {
+ for_each_sgtable_dma_sg(sgt, sg, i) {
size_t bytes = sg_dma_len(sg) + sg->offset;
etnaviv_context_unmap(context, da, bytes);