This converts swiotlb to use phys_to_dma and dma_to_phys instead of swiotlb_phys_to_bus() and swiotlb_bus_to_phys(). swiotlb_phys_to_bus() and swiotlb_bus_to_phys() are not necessary so this patch also removes them. Signed-off-by: FUJITA Tomonori <fujita.tomonori@xxxxxxxxxxxxx> --- include/linux/swiotlb.h | 5 ----- lib/swiotlb.c | 22 ++++++---------------- 2 files changed, 6 insertions(+), 21 deletions(-) diff --git a/include/linux/swiotlb.h b/include/linux/swiotlb.h index a977da2..73b1f1c 100644 --- a/include/linux/swiotlb.h +++ b/include/linux/swiotlb.h @@ -23,11 +23,6 @@ struct scatterlist; extern void swiotlb_init(void); -extern dma_addr_t swiotlb_phys_to_bus(struct device *hwdev, - phys_addr_t address); -extern phys_addr_t swiotlb_bus_to_phys(struct device *hwdev, - dma_addr_t address); - extern void *swiotlb_alloc_coherent(struct device *hwdev, size_t size, dma_addr_t *dma_handle, gfp_t flags); diff --git a/lib/swiotlb.c b/lib/swiotlb.c index a0faeb0..de71dba 100644 --- a/lib/swiotlb.c +++ b/lib/swiotlb.c @@ -114,20 +114,10 @@ setup_io_tlb_npages(char *str) __setup("swiotlb=", setup_io_tlb_npages); /* make io_tlb_overflow tunable too? */ -dma_addr_t __weak swiotlb_phys_to_bus(struct device *hwdev, phys_addr_t paddr) -{ - return paddr; -} - -phys_addr_t __weak swiotlb_bus_to_phys(struct device *hwdev, dma_addr_t baddr) -{ - return baddr; -} - static dma_addr_t swiotlb_virt_to_bus(struct device *hwdev, volatile void *address) { - return swiotlb_phys_to_bus(hwdev, virt_to_phys(address)); + return phys_to_dma(hwdev, virt_to_phys(address)); } static void swiotlb_print_info(unsigned long bytes) @@ -566,7 +556,7 @@ void swiotlb_free_coherent(struct device *hwdev, size_t size, void *vaddr, dma_addr_t dev_addr) { - phys_addr_t paddr = swiotlb_bus_to_phys(hwdev, dev_addr); + phys_addr_t paddr = dma_to_phys(hwdev, dev_addr); WARN_ON(irqs_disabled()); if (!is_swiotlb_buffer(paddr)) @@ -611,7 +601,7 @@ dma_addr_t swiotlb_map_page(struct device *dev, struct page *page, struct dma_attrs *attrs) { phys_addr_t phys = page_to_phys(page) + offset; - dma_addr_t dev_addr = swiotlb_phys_to_bus(dev, phys); + dma_addr_t dev_addr = phys_to_dma(dev, phys); void *map; BUG_ON(dir == DMA_NONE); @@ -655,7 +645,7 @@ EXPORT_SYMBOL_GPL(swiotlb_map_page); static void unmap_single(struct device *hwdev, dma_addr_t dev_addr, size_t size, int dir) { - phys_addr_t paddr = swiotlb_bus_to_phys(hwdev, dev_addr); + phys_addr_t paddr = dma_to_phys(hwdev, dev_addr); BUG_ON(dir == DMA_NONE); @@ -692,7 +682,7 @@ static void swiotlb_sync_single(struct device *hwdev, dma_addr_t dev_addr, size_t size, int dir, int target) { - phys_addr_t paddr = swiotlb_bus_to_phys(hwdev, dev_addr); + phys_addr_t paddr = dma_to_phys(hwdev, dev_addr); BUG_ON(dir == DMA_NONE); @@ -781,7 +771,7 @@ swiotlb_map_sg_attrs(struct device *hwdev, struct scatterlist *sgl, int nelems, for_each_sg(sgl, sg, nelems, i) { phys_addr_t paddr = sg_phys(sg); - dma_addr_t dev_addr = swiotlb_phys_to_bus(hwdev, paddr); + dma_addr_t dev_addr = phys_to_dma(hwdev, paddr); if (swiotlb_force || !dma_capable(hwdev, dev_addr, sg->length)) { -- 1.6.0.6 -- To unsubscribe from this list: send the line "unsubscribe linux-ia64" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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