diff options
Diffstat (limited to 'arch/powerpc/platforms/pseries/vio.c')
| -rw-r--r-- | arch/powerpc/platforms/pseries/vio.c | 21 |
1 files changed, 12 insertions, 9 deletions
diff --git a/arch/powerpc/platforms/pseries/vio.c b/arch/powerpc/platforms/pseries/vio.c index ac1d2d2c9a88..18cffac5468f 100644 --- a/arch/powerpc/platforms/pseries/vio.c +++ b/arch/powerpc/platforms/pseries/vio.c @@ -512,18 +512,21 @@ static void vio_dma_iommu_free_coherent(struct device *dev, size_t size, vio_cmo_dealloc(viodev, roundup(size, PAGE_SIZE)); } -static dma_addr_t vio_dma_iommu_map_page(struct device *dev, struct page *page, - unsigned long offset, size_t size, - enum dma_data_direction direction, - unsigned long attrs) +static dma_addr_t vio_dma_iommu_map_phys(struct device *dev, phys_addr_t phys, + size_t size, + enum dma_data_direction direction, + unsigned long attrs) { struct vio_dev *viodev = to_vio_dev(dev); struct iommu_table *tbl = get_iommu_table_base(dev); dma_addr_t ret = DMA_MAPPING_ERROR; + if (unlikely(attrs & DMA_ATTR_MMIO)) + return ret; + if (vio_cmo_alloc(viodev, roundup(size, IOMMU_PAGE_SIZE(tbl)))) goto out_fail; - ret = iommu_map_page(dev, tbl, page, offset, size, dma_get_mask(dev), + ret = iommu_map_phys(dev, tbl, phys, size, dma_get_mask(dev), direction, attrs); if (unlikely(ret == DMA_MAPPING_ERROR)) goto out_deallocate; @@ -536,7 +539,7 @@ out_fail: return DMA_MAPPING_ERROR; } -static void vio_dma_iommu_unmap_page(struct device *dev, dma_addr_t dma_handle, +static void vio_dma_iommu_unmap_phys(struct device *dev, dma_addr_t dma_handle, size_t size, enum dma_data_direction direction, unsigned long attrs) @@ -544,7 +547,7 @@ static void vio_dma_iommu_unmap_page(struct device *dev, dma_addr_t dma_handle, struct vio_dev *viodev = to_vio_dev(dev); struct iommu_table *tbl = get_iommu_table_base(dev); - iommu_unmap_page(tbl, dma_handle, size, direction, attrs); + iommu_unmap_phys(tbl, dma_handle, size, direction, attrs); vio_cmo_dealloc(viodev, roundup(size, IOMMU_PAGE_SIZE(tbl))); } @@ -605,8 +608,8 @@ static const struct dma_map_ops vio_dma_mapping_ops = { .free = vio_dma_iommu_free_coherent, .map_sg = vio_dma_iommu_map_sg, .unmap_sg = vio_dma_iommu_unmap_sg, - .map_page = vio_dma_iommu_map_page, - .unmap_page = vio_dma_iommu_unmap_page, + .map_phys = vio_dma_iommu_map_phys, + .unmap_phys = vio_dma_iommu_unmap_phys, .dma_supported = dma_iommu_dma_supported, .get_required_mask = dma_iommu_get_required_mask, .mmap = dma_common_mmap, |