powerpc: Remove addr_needs_map in struct dma_mapping_ops

This patch adds max_direct_dma_addr to struct dev_archdata to remove
addr_needs_map in struct dma_mapping_ops. It also converts
dma_capable() to use max_direct_dma_addr.

max_direct_dma_addr is initialized in pci_dma_dev_setup_swiotlb(),
called via ppc_md.pci_dma_dev_setup hook.

For further information:
http://marc.info/?t=124719060200001&r=1&w=2

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>

4 files changed, 4 insertions, 0 deletions

diff --git a/arch/powerpc/platforms/85xx/mpc8536_ds.c b/arch/powerpc/platforms/85xx/mpc8536_ds.c
index 055ff417bae9..bf052c056106 100644
--- a/arch/powerpc/platforms/85xx/mpc8536_ds.c
+++ b/arch/powerpc/platforms/85xx/mpc8536_ds.c
@@ -97,6 +97,7 @@ static void __init mpc8536_ds_setup_arch(void)
         if (lmb_end_of_DRAM() > max) {
                 ppc_swiotlb_enable = 1;
                 set_pci_dma_ops(&swiotlb_pci_dma_ops);
+                ppc_md.pci_dma_dev_setup = pci_dma_dev_setup_swiotlb;
         }
 #endif
 
diff --git a/arch/powerpc/platforms/85xx/mpc85xx_ds.c b/arch/powerpc/platforms/85xx/mpc85xx_ds.c
index 849c0ac0025f..c6f92ccd963b 100644
--- a/arch/powerpc/platforms/85xx/mpc85xx_ds.c
+++ b/arch/powerpc/platforms/85xx/mpc85xx_ds.c
@@ -193,6 +193,7 @@ static void __init mpc85xx_ds_setup_arch(void)
         if (lmb_end_of_DRAM() > max) {
                 ppc_swiotlb_enable = 1;
                 set_pci_dma_ops(&swiotlb_pci_dma_ops);
+                ppc_md.pci_dma_dev_setup = pci_dma_dev_setup_swiotlb;
         }
 #endif
 
diff --git a/arch/powerpc/platforms/85xx/mpc85xx_mds.c b/arch/powerpc/platforms/85xx/mpc85xx_mds.c
index 20a61d0af33b..25998b661f20 100644
--- a/arch/powerpc/platforms/85xx/mpc85xx_mds.c
+++ b/arch/powerpc/platforms/85xx/mpc85xx_mds.c
@@ -256,6 +256,7 @@ static void __init mpc85xx_mds_setup_arch(void)
         if (lmb_end_of_DRAM() > max) {
                 ppc_swiotlb_enable = 1;
                 set_pci_dma_ops(&swiotlb_pci_dma_ops);
+                ppc_md.pci_dma_dev_setup = pci_dma_dev_setup_swiotlb;
         }
 #endif
 }
diff --git a/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c b/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c
index 66327024a6a6..803230156875 100644
--- a/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c
+++ b/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c
@@ -106,6 +106,7 @@ mpc86xx_hpcn_setup_arch(void)
         if (lmb_end_of_DRAM() > max) {
                 ppc_swiotlb_enable = 1;
                 set_pci_dma_ops(&swiotlb_pci_dma_ops);
+                ppc_md.pci_dma_dev_setup = pci_dma_dev_setup_swiotlb;
         }
 #endif
 }