diff options
Diffstat (limited to 'drivers/gpu/drm/msm/msm_gpummu.c')
| -rw-r--r-- | drivers/gpu/drm/msm/msm_gpummu.c | 15 |
1 files changed, 7 insertions, 8 deletions
diff --git a/drivers/gpu/drm/msm/msm_gpummu.c b/drivers/gpu/drm/msm/msm_gpummu.c index 310a31b05faa..53a7348476a1 100644 --- a/drivers/gpu/drm/msm/msm_gpummu.c +++ b/drivers/gpu/drm/msm/msm_gpummu.c @@ -30,21 +30,20 @@ static int msm_gpummu_map(struct msm_mmu *mmu, uint64_t iova, { struct msm_gpummu *gpummu = to_msm_gpummu(mmu); unsigned idx = (iova - GPUMMU_VA_START) / GPUMMU_PAGE_SIZE; - struct scatterlist *sg; + struct sg_dma_page_iter dma_iter; unsigned prot_bits = 0; - unsigned i, j; if (prot & IOMMU_WRITE) prot_bits |= 1; if (prot & IOMMU_READ) prot_bits |= 2; - for_each_sg(sgt->sgl, sg, sgt->nents, i) { - dma_addr_t addr = sg->dma_address; - for (j = 0; j < sg->length / GPUMMU_PAGE_SIZE; j++, idx++) { - gpummu->table[idx] = addr | prot_bits; - addr += GPUMMU_PAGE_SIZE; - } + for_each_sgtable_dma_page(sgt, &dma_iter, 0) { + dma_addr_t addr = sg_page_iter_dma_address(&dma_iter); + int i; + + for (i = 0; i < PAGE_SIZE; i += GPUMMU_PAGE_SIZE) + gpummu->table[idx++] = (addr + i) | prot_bits; } /* we can improve by deferring flush for multiple map() */ |