diff options
Diffstat (limited to 'drivers/gpu/drm/etnaviv/etnaviv_mmu.c')
-rw-r--r-- | drivers/gpu/drm/etnaviv/etnaviv_mmu.c | 25 |
1 files changed, 12 insertions, 13 deletions
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_mmu.c b/drivers/gpu/drm/etnaviv/etnaviv_mmu.c index 707f5c1a5874..44fbc0a123bf 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_mmu.c +++ b/drivers/gpu/drm/etnaviv/etnaviv_mmu.c @@ -73,17 +73,17 @@ 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) { - u32 pa = sg_dma_address(sg) - sg->offset; + for_each_sgtable_dma_sg(sgt, sg, i) { + phys_addr_t pa = sg_dma_address(sg) - sg->offset; size_t bytes = sg_dma_len(sg) + sg->offset; - VERB("map[%d]: %08x %08x(%zx)", i, iova, pa, bytes); + VERB("map[%d]: %08x %pap(%zx)", i, iova, &pa, bytes); ret = etnaviv_context_map(context, da, pa, bytes, prot); if (ret) @@ -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); @@ -289,6 +282,12 @@ void etnaviv_iommu_unmap_gem(struct etnaviv_iommu_context *context, mutex_lock(&context->lock); + /* Bail if the mapping has been reaped by another thread */ + if (!mapping->context) { + mutex_unlock(&context->lock); + return; + } + /* If the vram node is on the mm, unmap and remove the node */ if (mapping->vram_node.mm == &context->mm) etnaviv_iommu_remove_mapping(context, mapping); |