sparc: remove dma-mapping_{32|64}.h

This modifies SPARC32 to use struct dma_map ops. It means that we can
remove dma-mapping_{32|64}.h.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Tested-by: Robert Reif <reif@earthlink.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/arch/sparc/include/asm/dma-mapping.h b/arch/sparc/include/asm/dma-mapping.h
index 8c911ea9ee5f69c2217a117ce4339603af931275..204e4bf644380560394902b95445c3d9f6020ed1 100644 (file)
--- a/arch/sparc/include/asm/dma-mapping.h
+++ b/arch/sparc/include/asm/dma-mapping.h
@@ -1,33 +1,134 @@
 #ifndef ___ASM_SPARC_DMA_MAPPING_H
 #define ___ASM_SPARC_DMA_MAPPING_H
-#if defined(__sparc__) && defined(__arch64__)
-#include <asm/dma-mapping_64.h>
-#else
-#include <asm/dma-mapping_32.h>
-#endif
+
+#include <linux/scatterlist.h>
+#include <linux/mm.h>
 
 #define DMA_ERROR_CODE (~(dma_addr_t)0x0)
 
 extern int dma_supported(struct device *dev, u64 mask);
 extern int dma_set_mask(struct device *dev, u64 dma_mask);
 
-static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
+#define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f)
+#define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h)
+#define dma_is_consistent(d, h)        (1)
+
+struct dma_ops {
+       void *(*alloc_coherent)(struct device *dev, size_t size,
+                               dma_addr_t *dma_handle, gfp_t flag);
+       void (*free_coherent)(struct device *dev, size_t size,
+                             void *cpu_addr, dma_addr_t dma_handle);
+       dma_addr_t (*map_page)(struct device *dev, struct page *page,
+                              unsigned long offset, size_t size,
+                              enum dma_data_direction direction);
+       void (*unmap_page)(struct device *dev, dma_addr_t dma_addr,
+                          size_t size,
+                          enum dma_data_direction direction);
+       int (*map_sg)(struct device *dev, struct scatterlist *sg, int nents,
+                     enum dma_data_direction direction);
+       void (*unmap_sg)(struct device *dev, struct scatterlist *sg,
+                        int nhwentries,
+                        enum dma_data_direction direction);
+       void (*sync_single_for_cpu)(struct device *dev,
+                                   dma_addr_t dma_handle, size_t size,
+                                   enum dma_data_direction direction);
+       void (*sync_single_for_device)(struct device *dev,
+                                      dma_addr_t dma_handle, size_t size,
+                                      enum dma_data_direction direction);
+       void (*sync_sg_for_cpu)(struct device *dev, struct scatterlist *sg,
+                               int nelems,
+                               enum dma_data_direction direction);
+       void (*sync_sg_for_device)(struct device *dev,
+                                  struct scatterlist *sg, int nents,
+                                  enum dma_data_direction dir);
+};
+extern const struct dma_ops *dma_ops;
+
+static inline void *dma_alloc_coherent(struct device *dev, size_t size,
+                                      dma_addr_t *dma_handle, gfp_t flag)
 {
-       return (dma_addr == DMA_ERROR_CODE);
+       return dma_ops->alloc_coherent(dev, size, dma_handle, flag);
 }
 
-static inline int dma_get_cache_alignment(void)
+static inline void dma_free_coherent(struct device *dev, size_t size,
+                                    void *cpu_addr, dma_addr_t dma_handle)
 {
-       /*
-        * no easy way to get cache size on all processors, so return
-        * the maximum possible, to be safe
-        */
-       return (1 << INTERNODE_CACHE_SHIFT);
+       dma_ops->free_coherent(dev, size, cpu_addr, dma_handle);
 }
 
-#define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f)
-#define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h)
-#define dma_is_consistent(d, h)        (1)
+static inline dma_addr_t dma_map_single(struct device *dev, void *cpu_addr,
+                                       size_t size,
+                                       enum dma_data_direction direction)
+{
+       return dma_ops->map_page(dev, virt_to_page(cpu_addr),
+                                (unsigned long)cpu_addr & ~PAGE_MASK, size,
+                                direction);
+}
+
+static inline void dma_unmap_single(struct device *dev, dma_addr_t dma_addr,
+                                   size_t size,
+                                   enum dma_data_direction direction)
+{
+       dma_ops->unmap_page(dev, dma_addr, size, direction);
+}
+
+static inline dma_addr_t dma_map_page(struct device *dev, struct page *page,
+                                     unsigned long offset, size_t size,
+                                     enum dma_data_direction direction)
+{
+       return dma_ops->map_page(dev, page, offset, size, direction);
+}
+
+static inline void dma_unmap_page(struct device *dev, dma_addr_t dma_address,
+                                 size_t size,
+                                 enum dma_data_direction direction)
+{
+       dma_ops->unmap_page(dev, dma_address, size, direction);
+}
+
+static inline int dma_map_sg(struct device *dev, struct scatterlist *sg,
+                            int nents, enum dma_data_direction direction)
+{
+       return dma_ops->map_sg(dev, sg, nents, direction);
+}
+
+static inline void dma_unmap_sg(struct device *dev, struct scatterlist *sg,
+                               int nents, enum dma_data_direction direction)
+{
+       dma_ops->unmap_sg(dev, sg, nents, direction);
+}
+
+static inline void dma_sync_single_for_cpu(struct device *dev,
+                                          dma_addr_t dma_handle, size_t size,
+                                          enum dma_data_direction direction)
+{
+       dma_ops->sync_single_for_cpu(dev, dma_handle, size, direction);
+}
+
+static inline void dma_sync_single_for_device(struct device *dev,
+                                             dma_addr_t dma_handle,
+                                             size_t size,
+                                             enum dma_data_direction direction)
+{
+       if (dma_ops->sync_single_for_device)
+               dma_ops->sync_single_for_device(dev, dma_handle, size,
+                                               direction);
+}
+
+static inline void dma_sync_sg_for_cpu(struct device *dev,
+                                      struct scatterlist *sg, int nelems,
+                                      enum dma_data_direction direction)
+{
+       dma_ops->sync_sg_for_cpu(dev, sg, nelems, direction);
+}
+
+static inline void dma_sync_sg_for_device(struct device *dev,
+                                         struct scatterlist *sg, int nelems,
+                                         enum dma_data_direction direction)
+{
+       if (dma_ops->sync_sg_for_device)
+               dma_ops->sync_sg_for_device(dev, sg, nelems, direction);
+}
 
 static inline void dma_sync_single_range_for_cpu(struct device *dev,
                                                 dma_addr_t dma_handle,
@@ -47,4 +148,19 @@ static inline void dma_sync_single_range_for_device(struct device *dev,
        dma_sync_single_for_device(dev, dma_handle+offset, size, dir);
 }
 
+
+static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
+{
+       return (dma_addr == DMA_ERROR_CODE);
+}
+
+static inline int dma_get_cache_alignment(void)
+{
+       /*
+        * no easy way to get cache size on all processors, so return
+        * the maximum possible, to be safe
+        */
+       return (1 << INTERNODE_CACHE_SHIFT);
+}
+
 #endif

diff --git a/arch/sparc/include/asm/dma-mapping_32.h b/arch/sparc/include/asm/dma-mapping_32.h
deleted file mode 100644 (file)
index 7f09c85..0000000
--- a/arch/sparc/include/asm/dma-mapping_32.h
+++ /dev/null
@@ -1,42 +0,0 @@
-#ifndef _ASM_SPARC_DMA_MAPPING_H
-#define _ASM_SPARC_DMA_MAPPING_H
-
-#include <linux/types.h>
-
-struct device;
-struct scatterlist;
-struct page;
-
-extern void *dma_alloc_coherent(struct device *dev, size_t size,
-                               dma_addr_t *dma_handle, gfp_t flag);
-extern void dma_free_coherent(struct device *dev, size_t size,
-                             void *cpu_addr, dma_addr_t dma_handle);
-extern dma_addr_t dma_map_single(struct device *dev, void *cpu_addr,
-                                size_t size,
-                                enum dma_data_direction direction);
-extern void dma_unmap_single(struct device *dev, dma_addr_t dma_addr,
-                            size_t size,
-                            enum dma_data_direction direction);
-extern dma_addr_t dma_map_page(struct device *dev, struct page *page,
-                              unsigned long offset, size_t size,
-                              enum dma_data_direction direction);
-extern void dma_unmap_page(struct device *dev, dma_addr_t dma_address,
-                          size_t size, enum dma_data_direction direction);
-extern int dma_map_sg(struct device *dev, struct scatterlist *sg,
-                     int nents, enum dma_data_direction direction);
-extern void dma_unmap_sg(struct device *dev, struct scatterlist *sg,
-                        int nents, enum dma_data_direction direction);
-extern void dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle,
-                                   size_t size,
-                                   enum dma_data_direction direction);
-extern void dma_sync_single_for_device(struct device *dev,
-                                      dma_addr_t dma_handle,
-                                      size_t size,
-                                      enum dma_data_direction direction);
-extern void dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg,
-                               int nelems, enum dma_data_direction direction);
-extern void dma_sync_sg_for_device(struct device *dev,
-                                  struct scatterlist *sg, int nelems,
-                                  enum dma_data_direction direction);
-
-#endif /* _ASM_SPARC_DMA_MAPPING_H */

diff --git a/arch/sparc/include/asm/dma-mapping_64.h b/arch/sparc/include/asm/dma-mapping_64.h
deleted file mode 100644 (file)
index 579757e..0000000
--- a/arch/sparc/include/asm/dma-mapping_64.h
+++ /dev/null
@@ -1,121 +0,0 @@
-#ifndef _ASM_SPARC64_DMA_MAPPING_H
-#define _ASM_SPARC64_DMA_MAPPING_H
-
-#include <linux/scatterlist.h>
-#include <linux/mm.h>
-
-struct dma_ops {
-       void *(*alloc_coherent)(struct device *dev, size_t size,
-                               dma_addr_t *dma_handle, gfp_t flag);
-       void (*free_coherent)(struct device *dev, size_t size,
-                             void *cpu_addr, dma_addr_t dma_handle);
-       dma_addr_t (*map_page)(struct device *dev, struct page *page,
-                              unsigned long offset, size_t size,
-                              enum dma_data_direction direction);
-       void (*unmap_page)(struct device *dev, dma_addr_t dma_addr,
-                          size_t size,
-                          enum dma_data_direction direction);
-       int (*map_sg)(struct device *dev, struct scatterlist *sg, int nents,
-                     enum dma_data_direction direction);
-       void (*unmap_sg)(struct device *dev, struct scatterlist *sg,
-                        int nhwentries,
-                        enum dma_data_direction direction);
-       void (*sync_single_for_cpu)(struct device *dev,
-                                   dma_addr_t dma_handle, size_t size,
-                                   enum dma_data_direction direction);
-       void (*sync_single_for_device)(struct device *dev,
-                                      dma_addr_t dma_handle, size_t size,
-                                      enum dma_data_direction direction);
-       void (*sync_sg_for_cpu)(struct device *dev, struct scatterlist *sg,
-                               int nelems,
-                               enum dma_data_direction direction);
-       void (*sync_sg_for_device)(struct device *dev,
-                                  struct scatterlist *sg, int nents,
-                                  enum dma_data_direction dir);
-};
-extern const struct dma_ops *dma_ops;
-
-static inline void *dma_alloc_coherent(struct device *dev, size_t size,
-                                      dma_addr_t *dma_handle, gfp_t flag)
-{
-       return dma_ops->alloc_coherent(dev, size, dma_handle, flag);
-}
-
-static inline void dma_free_coherent(struct device *dev, size_t size,
-                                    void *cpu_addr, dma_addr_t dma_handle)
-{
-       dma_ops->free_coherent(dev, size, cpu_addr, dma_handle);
-}
-
-static inline dma_addr_t dma_map_single(struct device *dev, void *cpu_addr,
-                                       size_t size,
-                                       enum dma_data_direction direction)
-{
-       return dma_ops->map_page(dev, virt_to_page(cpu_addr),
-                                (unsigned long)cpu_addr & ~PAGE_MASK, size,
-                                direction);
-}
-
-static inline void dma_unmap_single(struct device *dev, dma_addr_t dma_addr,
-                                   size_t size,
-                                   enum dma_data_direction direction)
-{
-       dma_ops->unmap_page(dev, dma_addr, size, direction);
-}
-
-static inline dma_addr_t dma_map_page(struct device *dev, struct page *page,
-                                     unsigned long offset, size_t size,
-                                     enum dma_data_direction direction)
-{
-       return dma_ops->map_page(dev, page, offset, size, direction);
-}
-
-static inline void dma_unmap_page(struct device *dev, dma_addr_t dma_address,
-                                 size_t size,
-                                 enum dma_data_direction direction)
-{
-       dma_ops->unmap_page(dev, dma_address, size, direction);
-}
-
-static inline int dma_map_sg(struct device *dev, struct scatterlist *sg,
-                            int nents, enum dma_data_direction direction)
-{
-       return dma_ops->map_sg(dev, sg, nents, direction);
-}
-
-static inline void dma_unmap_sg(struct device *dev, struct scatterlist *sg,
-                               int nents, enum dma_data_direction direction)
-{
-       dma_ops->unmap_sg(dev, sg, nents, direction);
-}
-
-static inline void dma_sync_single_for_cpu(struct device *dev,
-                                          dma_addr_t dma_handle, size_t size,
-                                          enum dma_data_direction direction)
-{
-       dma_ops->sync_single_for_cpu(dev, dma_handle, size, direction);
-}
-
-static inline void dma_sync_single_for_device(struct device *dev,
-                                             dma_addr_t dma_handle,
-                                             size_t size,
-                                             enum dma_data_direction direction)
-{
-       /* No flushing needed to sync cpu writes to the device.  */
-}
-
-static inline void dma_sync_sg_for_cpu(struct device *dev,
-                                      struct scatterlist *sg, int nelems,
-                                      enum dma_data_direction direction)
-{
-       dma_ops->sync_sg_for_cpu(dev, sg, nelems, direction);
-}
-
-static inline void dma_sync_sg_for_device(struct device *dev,
-                                         struct scatterlist *sg, int nelems,
-                                         enum dma_data_direction direction)
-{
-       /* No flushing needed to sync cpu writes to the device.  */
-}
-
-#endif /* _ASM_SPARC64_DMA_MAPPING_H */

diff --git a/arch/sparc/kernel/dma.c b/arch/sparc/kernel/dma.c
index 3c9ff4f8af3a65980785905f4d1f9ff61a64e00a..524c32f97c555856809f3d9400d9fd76080aaa38 100644 (file)
--- a/arch/sparc/kernel/dma.c
+++ b/arch/sparc/kernel/dma.c
@@ -35,8 +35,8 @@ int dma_set_mask(struct device *dev, u64 dma_mask)
 }
 EXPORT_SYMBOL(dma_set_mask);
 
-void *dma_alloc_coherent(struct device *dev, size_t size,
-                        dma_addr_t *dma_handle, gfp_t flag)
+static void *dma32_alloc_coherent(struct device *dev, size_t size,
+                                 dma_addr_t *dma_handle, gfp_t flag)
 {
 #ifdef CONFIG_PCI
        if (dev->bus == &pci_bus_type)
@@ -44,10 +44,9 @@ void *dma_alloc_coherent(struct device *dev, size_t size,
 #endif
        return sbus_alloc_consistent(dev, size, dma_handle);
 }
-EXPORT_SYMBOL(dma_alloc_coherent);
 
-void dma_free_coherent(struct device *dev, size_t size,
-                      void *cpu_addr, dma_addr_t dma_handle)
+static void dma32_free_coherent(struct device *dev, size_t size,
+                               void *cpu_addr, dma_addr_t dma_handle)
 {
 #ifdef CONFIG_PCI
        if (dev->bus == &pci_bus_type) {
@@ -58,38 +57,10 @@ void dma_free_coherent(struct device *dev, size_t size,
 #endif
        sbus_free_consistent(dev, size, cpu_addr, dma_handle);
 }
-EXPORT_SYMBOL(dma_free_coherent);
 
-dma_addr_t dma_map_single(struct device *dev, void *cpu_addr,
-                         size_t size, enum dma_data_direction direction)
-{
-#ifdef CONFIG_PCI
-       if (dev->bus == &pci_bus_type)
-               return pci_map_single(to_pci_dev(dev), cpu_addr,
-                                     size, (int)direction);
-#endif
-       return sbus_map_single(dev, cpu_addr, size, (int)direction);
-}
-EXPORT_SYMBOL(dma_map_single);
-
-void dma_unmap_single(struct device *dev, dma_addr_t dma_addr,
-                     size_t size,
-                     enum dma_data_direction direction)
-{
-#ifdef CONFIG_PCI
-       if (dev->bus == &pci_bus_type) {
-               pci_unmap_single(to_pci_dev(dev), dma_addr,
-                                size, (int)direction);
-               return;
-       }
-#endif
-       sbus_unmap_single(dev, dma_addr, size, (int)direction);
-}
-EXPORT_SYMBOL(dma_unmap_single);
-
-dma_addr_t dma_map_page(struct device *dev, struct page *page,
-                       unsigned long offset, size_t size,
-                       enum dma_data_direction direction)
+static dma_addr_t dma32_map_page(struct device *dev, struct page *page,
+                                unsigned long offset, size_t size,
+                                enum dma_data_direction direction)
 {
 #ifdef CONFIG_PCI
        if (dev->bus == &pci_bus_type)
@@ -99,10 +70,9 @@ dma_addr_t dma_map_page(struct device *dev, struct page *page,
        return sbus_map_single(dev, page_address(page) + offset,
                               size, (int)direction);
 }
-EXPORT_SYMBOL(dma_map_page);
 
-void dma_unmap_page(struct device *dev, dma_addr_t dma_address,
-                   size_t size, enum dma_data_direction direction)
+static void dma32_unmap_page(struct device *dev, dma_addr_t dma_address,
+                            size_t size, enum dma_data_direction direction)
 {
 #ifdef CONFIG_PCI
        if (dev->bus == &pci_bus_type) {
@@ -113,10 +83,9 @@ void dma_unmap_page(struct device *dev, dma_addr_t dma_address,
 #endif
        sbus_unmap_single(dev, dma_address, size, (int)direction);
 }
-EXPORT_SYMBOL(dma_unmap_page);
 
-int dma_map_sg(struct device *dev, struct scatterlist *sg,
-                            int nents, enum dma_data_direction direction)
+static int dma32_map_sg(struct device *dev, struct scatterlist *sg,
+                       int nents, enum dma_data_direction direction)
 {
 #ifdef CONFIG_PCI
        if (dev->bus == &pci_bus_type)
@@ -124,10 +93,9 @@ int dma_map_sg(struct device *dev, struct scatterlist *sg,
 #endif
        return sbus_map_sg(dev, sg, nents, direction);
 }
-EXPORT_SYMBOL(dma_map_sg);
 
-void dma_unmap_sg(struct device *dev, struct scatterlist *sg,
-                 int nents, enum dma_data_direction direction)
+void dma32_unmap_sg(struct device *dev, struct scatterlist *sg,
+                   int nents, enum dma_data_direction direction)
 {
 #ifdef CONFIG_PCI
        if (dev->bus == &pci_bus_type) {
@@ -137,10 +105,10 @@ void dma_unmap_sg(struct device *dev, struct scatterlist *sg,
 #endif
        sbus_unmap_sg(dev, sg, nents, (int)direction);
 }
-EXPORT_SYMBOL(dma_unmap_sg);
 
-void dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle,
-                            size_t size, enum dma_data_direction direction)
+static void dma32_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle,
+                                     size_t size,
+                                     enum dma_data_direction direction)
 {
 #ifdef CONFIG_PCI
        if (dev->bus == &pci_bus_type) {
@@ -151,10 +119,10 @@ void dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle,
 #endif
        sbus_dma_sync_single_for_cpu(dev, dma_handle, size, (int) direction);
 }
-EXPORT_SYMBOL(dma_sync_single_for_cpu);
 
-void dma_sync_single_for_device(struct device *dev, dma_addr_t dma_handle,
-                               size_t size, enum dma_data_direction direction)
+static void dma32_sync_single_for_device(struct device *dev,
+                                        dma_addr_t dma_handle, size_t size,
+                                        enum dma_data_direction direction)
 {
 #ifdef CONFIG_PCI
        if (dev->bus == &pci_bus_type) {
@@ -165,10 +133,9 @@ void dma_sync_single_for_device(struct device *dev, dma_addr_t dma_handle,
 #endif
        sbus_dma_sync_single_for_device(dev, dma_handle, size, (int) direction);
 }
-EXPORT_SYMBOL(dma_sync_single_for_device);
 
-void dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg,
-                        int nelems, enum dma_data_direction direction)
+static void dma32_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg,
+                                 int nelems, enum dma_data_direction direction)
 {
 #ifdef CONFIG_PCI
        if (dev->bus == &pci_bus_type) {
@@ -179,11 +146,10 @@ void dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg,
 #endif
        BUG();
 }
-EXPORT_SYMBOL(dma_sync_sg_for_cpu);
 
-void dma_sync_sg_for_device(struct device *dev,
-                           struct scatterlist *sg, int nelems,
-                           enum dma_data_direction direction)
+static void dma32_sync_sg_for_device(struct device *dev,
+                                    struct scatterlist *sg, int nelems,
+                                    enum dma_data_direction direction)
 {
 #ifdef CONFIG_PCI
        if (dev->bus == &pci_bus_type) {
@@ -194,4 +160,19 @@ void dma_sync_sg_for_device(struct device *dev,
 #endif
        BUG();
 }
-EXPORT_SYMBOL(dma_sync_sg_for_device);
+
+static const struct dma_ops dma32_dma_ops = {
+       .alloc_coherent         = dma32_alloc_coherent,
+       .free_coherent          = dma32_free_coherent,
+       .map_page               = dma32_map_page,
+       .unmap_page             = dma32_unmap_page,
+       .map_sg                 = dma32_map_sg,
+       .unmap_sg               = dma32_unmap_sg,
+       .sync_single_for_cpu    = dma32_sync_single_for_cpu,
+       .sync_single_for_device = dma32_sync_single_for_device,
+       .sync_sg_for_cpu        = dma32_sync_sg_for_cpu,
+       .sync_sg_for_device     = dma32_sync_sg_for_device,
+};
+
+const struct dma_ops *dma_ops = &dma32_dma_ops;
+EXPORT_SYMBOL(dma_ops);