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>

2 files changed, 0 insertions, 231 deletions

diff --git a/drivers/ssb/main.c b/drivers/ssb/main.c
index a732b396e602..7cee7f4eb60b 100644
--- 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 0d5f04316b35..623b704fdc42 100644
--- 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);