powerpc: Remove swiotlb_pci_dma_ops

Now swiotlb_pci_dma_ops is identical to swiotlb_dma_ops; we can use
swiotlb_dma_ops with any devices. This removes swiotlb_pci_dma_ops.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Becky Bruce <beckyb@kernel.crashing.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

arch/powerpc/include/asm/swiotlb.h

@@ -14,7 +14,6 @@
 #include <linux/swiotlb.h>
 
 extern struct dma_mapping_ops swiotlb_dma_ops;
-extern struct dma_mapping_ops swiotlb_pci_dma_ops;
 
 static inline void dma_mark_clean(void *addr, size_t size) {}
 

arch/powerpc/kernel/dma-swiotlb.c

@@ -45,20 +45,6 @@ struct dma_mapping_ops swiotlb_dma_ops = {
 	.sync_sg_for_device = swiotlb_sync_sg_for_device
 };
 
-struct dma_mapping_ops swiotlb_pci_dma_ops = {
-	.alloc_coherent = dma_direct_alloc_coherent,
-	.free_coherent = dma_direct_free_coherent,
-	.map_sg = swiotlb_map_sg_attrs,
-	.unmap_sg = swiotlb_unmap_sg_attrs,
-	.dma_supported = swiotlb_dma_supported,
-	.map_page = swiotlb_map_page,
-	.unmap_page = swiotlb_unmap_page,
-	.sync_single_range_for_cpu = swiotlb_sync_single_range_for_cpu,
-	.sync_single_range_for_device = swiotlb_sync_single_range_for_device,
-	.sync_sg_for_cpu = swiotlb_sync_sg_for_cpu,
-	.sync_sg_for_device = swiotlb_sync_sg_for_device
-};
-
 void pci_dma_dev_setup_swiotlb(struct pci_dev *pdev)
 {
 	struct pci_controller *hose;

arch/powerpc/platforms/85xx/mpc8536_ds.c

@@ -96,7 +96,7 @@ static void __init mpc8536_ds_setup_arch(void)
 #ifdef CONFIG_SWIOTLB
 	if (lmb_end_of_DRAM() > max) {
 		ppc_swiotlb_enable = 1;
-		set_pci_dma_ops(&swiotlb_pci_dma_ops);
+		set_pci_dma_ops(&swiotlb_dma_ops);
 		ppc_md.pci_dma_dev_setup = pci_dma_dev_setup_swiotlb;
 	}
 #endif

arch/powerpc/platforms/85xx/mpc85xx_ds.c

@@ -192,7 +192,7 @@ static void __init mpc85xx_ds_setup_arch(void)
 #ifdef CONFIG_SWIOTLB
 	if (lmb_end_of_DRAM() > max) {
 		ppc_swiotlb_enable = 1;
-		set_pci_dma_ops(&swiotlb_pci_dma_ops);
+		set_pci_dma_ops(&swiotlb_dma_ops);
 		ppc_md.pci_dma_dev_setup = pci_dma_dev_setup_swiotlb;
 	}
 #endif

arch/powerpc/platforms/85xx/mpc85xx_mds.c

@@ -255,7 +255,7 @@ static void __init mpc85xx_mds_setup_arch(void)
 #ifdef CONFIG_SWIOTLB
 	if (lmb_end_of_DRAM() > max) {
 		ppc_swiotlb_enable = 1;
-		set_pci_dma_ops(&swiotlb_pci_dma_ops);
+		set_pci_dma_ops(&swiotlb_dma_ops);
 		ppc_md.pci_dma_dev_setup = pci_dma_dev_setup_swiotlb;
 	}
 #endif

arch/powerpc/platforms/86xx/mpc86xx_hpcn.c

@@ -105,7 +105,7 @@ mpc86xx_hpcn_setup_arch(void)
 #ifdef CONFIG_SWIOTLB
 	if (lmb_end_of_DRAM() > max) {
 		ppc_swiotlb_enable = 1;
-		set_pci_dma_ops(&swiotlb_pci_dma_ops);
+		set_pci_dma_ops(&swiotlb_dma_ops);
 		ppc_md.pci_dma_dev_setup = pci_dma_dev_setup_swiotlb;
 	}
 #endif