ssb: remove the ssb DMA API

Now they are unnecessary.  We can use the generic DMA API with any bus.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Michael Buesch <mb@bu3sch.de>
Cc: Gary Zambrano <zambrano@broadcom.com>
Cc: Stefano Brivio <stefano.brivio@polimi.it>
Cc: Larry Finger <Larry.Finger@lwfinger.net>
Cc: John W. Linville <linville@tuxdriver.com>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/ssb/main.c b/drivers/ssb/main.c
index a732b39..7cee7f4 100644 (file)
--- a/drivers/ssb/main.c
+++ b/drivers/ssb/main.c
@@ -1228,80 +1228,6 @@ u32 ssb_dma_translation(struct ssb_device *dev)
 }
 EXPORT_SYMBOL(ssb_dma_translation);
 
-int ssb_dma_set_mask(struct ssb_device *dev, u64 mask)
-{
-#ifdef CONFIG_SSB_PCIHOST
-       int err;
-#endif
-
-       switch (dev->bus->bustype) {
-       case SSB_BUSTYPE_PCI:
-#ifdef CONFIG_SSB_PCIHOST
-               err = pci_set_dma_mask(dev->bus->host_pci, mask);
-               if (err)
-                       return err;
-               err = pci_set_consistent_dma_mask(dev->bus->host_pci, mask);
-               return err;
-#endif
-       case SSB_BUSTYPE_SSB:
-               return dma_set_mask(dev->dev, mask);
-       default:
-               __ssb_dma_not_implemented(dev);
-       }
-       return -ENOSYS;
-}
-EXPORT_SYMBOL(ssb_dma_set_mask);
-
-void * ssb_dma_alloc_consistent(struct ssb_device *dev, size_t size,
-                               dma_addr_t *dma_handle, gfp_t gfp_flags)
-{
-       switch (dev->bus->bustype) {
-       case SSB_BUSTYPE_PCI:
-#ifdef CONFIG_SSB_PCIHOST
-               if (gfp_flags & GFP_DMA) {
-                       /* Workaround: The PCI API does not support passing
-                        * a GFP flag. */
-                       return dma_alloc_coherent(&dev->bus->host_pci->dev,
-                                                 size, dma_handle, gfp_flags);
-               }
-               return pci_alloc_consistent(dev->bus->host_pci, size, dma_handle);
-#endif
-       case SSB_BUSTYPE_SSB:
-               return dma_alloc_coherent(dev->dev, size, dma_handle, gfp_flags);
-       default:
-               __ssb_dma_not_implemented(dev);
-       }
-       return NULL;
-}
-EXPORT_SYMBOL(ssb_dma_alloc_consistent);
-
-void ssb_dma_free_consistent(struct ssb_device *dev, size_t size,
-                            void *vaddr, dma_addr_t dma_handle,
-                            gfp_t gfp_flags)
-{
-       switch (dev->bus->bustype) {
-       case SSB_BUSTYPE_PCI:
-#ifdef CONFIG_SSB_PCIHOST
-               if (gfp_flags & GFP_DMA) {
-                       /* Workaround: The PCI API does not support passing
-                        * a GFP flag. */
-                       dma_free_coherent(&dev->bus->host_pci->dev,
-                                         size, vaddr, dma_handle);
-                       return;
-               }
-               pci_free_consistent(dev->bus->host_pci, size,
-                                   vaddr, dma_handle);
-               return;
-#endif
-       case SSB_BUSTYPE_SSB:
-               dma_free_coherent(dev->dev, size, vaddr, dma_handle);
-               return;
-       default:
-               __ssb_dma_not_implemented(dev);
-       }
-}
-EXPORT_SYMBOL(ssb_dma_free_consistent);
-
 int ssb_bus_may_powerdown(struct ssb_bus *bus)
 {
        struct ssb_chipcommon *cc;

diff --git a/include/linux/ssb/ssb.h b/include/linux/ssb/ssb.h
index 0d5f043..623b704 100644 (file)
--- a/include/linux/ssb/ssb.h
+++ b/include/linux/ssb/ssb.h
@@ -470,14 +470,6 @@ extern u32 ssb_dma_translation(struct ssb_device *dev);
 #define SSB_DMA_TRANSLATION_MASK       0xC0000000
 #define SSB_DMA_TRANSLATION_SHIFT      30
 
-extern int ssb_dma_set_mask(struct ssb_device *dev, u64 mask);
-
-extern void * ssb_dma_alloc_consistent(struct ssb_device *dev, size_t size,
-                                      dma_addr_t *dma_handle, gfp_t gfp_flags);
-extern void ssb_dma_free_consistent(struct ssb_device *dev, size_t size,
-                                   void *vaddr, dma_addr_t dma_handle,
-                                   gfp_t gfp_flags);
-
 static inline void __cold __ssb_dma_not_implemented(struct ssb_device *dev)
 {
 #ifdef CONFIG_SSB_DEBUG
@@ -486,155 +478,6 @@ static inline void __cold __ssb_dma_not_implemented(struct ssb_device *dev)
 #endif /* DEBUG */
 }
 
-static inline int ssb_dma_mapping_error(struct ssb_device *dev, dma_addr_t addr)
-{
-       switch (dev->bus->bustype) {
-       case SSB_BUSTYPE_PCI:
-#ifdef CONFIG_SSB_PCIHOST
-               return pci_dma_mapping_error(dev->bus->host_pci, addr);
-#endif
-               break;
-       case SSB_BUSTYPE_SSB:
-               return dma_mapping_error(dev->dev, addr);
-       default:
-               break;
-       }
-       __ssb_dma_not_implemented(dev);
-       return -ENOSYS;
-}
-
-static inline dma_addr_t ssb_dma_map_single(struct ssb_device *dev, void *p,
-                                           size_t size, enum dma_data_direction dir)
-{
-       switch (dev->bus->bustype) {
-       case SSB_BUSTYPE_PCI:
-#ifdef CONFIG_SSB_PCIHOST
-               return pci_map_single(dev->bus->host_pci, p, size, dir);
-#endif
-               break;
-       case SSB_BUSTYPE_SSB:
-               return dma_map_single(dev->dev, p, size, dir);
-       default:
-               break;
-       }
-       __ssb_dma_not_implemented(dev);
-       return 0;
-}
-
-static inline void ssb_dma_unmap_single(struct ssb_device *dev, dma_addr_t dma_addr,
-                                       size_t size, enum dma_data_direction dir)
-{
-       switch (dev->bus->bustype) {
-       case SSB_BUSTYPE_PCI:
-#ifdef CONFIG_SSB_PCIHOST
-               pci_unmap_single(dev->bus->host_pci, dma_addr, size, dir);
-               return;
-#endif
-               break;
-       case SSB_BUSTYPE_SSB:
-               dma_unmap_single(dev->dev, dma_addr, size, dir);
-               return;
-       default:
-               break;
-       }
-       __ssb_dma_not_implemented(dev);
-}
-
-static inline void ssb_dma_sync_single_for_cpu(struct ssb_device *dev,
-                                              dma_addr_t dma_addr,
-                                              size_t size,
-                                              enum dma_data_direction dir)
-{
-       switch (dev->bus->bustype) {
-       case SSB_BUSTYPE_PCI:
-#ifdef CONFIG_SSB_PCIHOST
-               pci_dma_sync_single_for_cpu(dev->bus->host_pci, dma_addr,
-                                           size, dir);
-               return;
-#endif
-               break;
-       case SSB_BUSTYPE_SSB:
-               dma_sync_single_for_cpu(dev->dev, dma_addr, size, dir);
-               return;
-       default:
-               break;
-       }
-       __ssb_dma_not_implemented(dev);
-}
-
-static inline void ssb_dma_sync_single_for_device(struct ssb_device *dev,
-                                                 dma_addr_t dma_addr,
-                                                 size_t size,
-                                                 enum dma_data_direction dir)
-{
-       switch (dev->bus->bustype) {
-       case SSB_BUSTYPE_PCI:
-#ifdef CONFIG_SSB_PCIHOST
-               pci_dma_sync_single_for_device(dev->bus->host_pci, dma_addr,
-                                              size, dir);
-               return;
-#endif
-               break;
-       case SSB_BUSTYPE_SSB:
-               dma_sync_single_for_device(dev->dev, dma_addr, size, dir);
-               return;
-       default:
-               break;
-       }
-       __ssb_dma_not_implemented(dev);
-}
-
-static inline void ssb_dma_sync_single_range_for_cpu(struct ssb_device *dev,
-                                                    dma_addr_t dma_addr,
-                                                    unsigned long offset,
-                                                    size_t size,
-                                                    enum dma_data_direction dir)
-{
-       switch (dev->bus->bustype) {
-       case SSB_BUSTYPE_PCI:
-#ifdef CONFIG_SSB_PCIHOST
-               /* Just sync everything. That's all the PCI API can do. */
-               pci_dma_sync_single_for_cpu(dev->bus->host_pci, dma_addr,
-                                           offset + size, dir);
-               return;
-#endif
-               break;
-       case SSB_BUSTYPE_SSB:
-               dma_sync_single_range_for_cpu(dev->dev, dma_addr, offset,
-                                             size, dir);
-               return;
-       default:
-               break;
-       }
-       __ssb_dma_not_implemented(dev);
-}
-
-static inline void ssb_dma_sync_single_range_for_device(struct ssb_device *dev,
-                                                       dma_addr_t dma_addr,
-                                                       unsigned long offset,
-                                                       size_t size,
-                                                       enum dma_data_direction dir)
-{
-       switch (dev->bus->bustype) {
-       case SSB_BUSTYPE_PCI:
-#ifdef CONFIG_SSB_PCIHOST
-               /* Just sync everything. That's all the PCI API can do. */
-               pci_dma_sync_single_for_device(dev->bus->host_pci, dma_addr,
-                                              offset + size, dir);
-               return;
-#endif
-               break;
-       case SSB_BUSTYPE_SSB:
-               dma_sync_single_range_for_device(dev->dev, dma_addr, offset,
-                                                size, dir);
-               return;
-       default:
-               break;
-       }
-       __ssb_dma_not_implemented(dev);
-}
-
-
 #ifdef CONFIG_SSB_PCIHOST
 /* PCI-host wrapper driver */
 extern int ssb_pcihost_register(struct pci_driver *driver);