powerpc: Use asm-generic/dma-mapping-common.h

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>

diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 4c0747e..6078253 100644 (file)
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -120,7 +120,7 @@ config PPC
        select HAVE_KRETPROBES
        select HAVE_ARCH_TRACEHOOK
        select HAVE_LMB
-       select HAVE_DMA_ATTRS if PPC64
+       select HAVE_DMA_ATTRS
        select USE_GENERIC_SMP_HELPERS if SMP
        select HAVE_OPROFILE
        select HAVE_SYSCALL_WRAPPERS if PPC64
@@ -307,10 +307,6 @@ config SWIOTLB
          platforms where the size of a physical address is larger
          than the bus address.  Not all platforms support this.
 
-config PPC_NEED_DMA_SYNC_OPS
-       def_bool y
-       depends on (NOT_COHERENT_CACHE || SWIOTLB)
-
 config HOTPLUG_CPU
        bool "Support for enabling/disabling CPUs"
        depends on SMP && HOTPLUG && EXPERIMENTAL && (PPC_PSERIES || PPC_PMAC)

diff --git a/arch/powerpc/include/asm/dma-mapping.h b/arch/powerpc/include/asm/dma-mapping.h
index 8ca2b51..91217e4 100644 (file)
--- a/arch/powerpc/include/asm/dma-mapping.h
+++ b/arch/powerpc/include/asm/dma-mapping.h
@@ -14,6 +14,7 @@
 #include <linux/mm.h>
 #include <linux/scatterlist.h>
 #include <linux/dma-attrs.h>
+#include <linux/dma-debug.h>
 #include <asm/io.h>
 #include <asm/swiotlb.h>
 
@@ -89,6 +90,11 @@ static inline void set_dma_ops(struct device *dev, struct dma_map_ops *ops)
        dev->archdata.dma_ops = ops;
 }
 
+/* this will be removed soon */
+#define flush_write_buffers()
+
+#include <asm-generic/dma-mapping-common.h>
+
 static inline int dma_supported(struct device *dev, u64 mask)
 {
        struct dma_map_ops *dma_ops = get_dma_ops(dev);
@@ -117,87 +123,6 @@ static inline int dma_set_mask(struct device *dev, u64 dma_mask)
        return 0;
 }
 
-/*
- * map_/unmap_single actually call through to map/unmap_page now that all the
- * dma_map_ops have been converted over. We just have to get the page and
- * offset to pass through to map_page
- */
-static inline dma_addr_t dma_map_single_attrs(struct device *dev,
-                                             void *cpu_addr,
-                                             size_t size,
-                                             enum dma_data_direction direction,
-                                             struct dma_attrs *attrs)
-{
-       struct dma_map_ops *dma_ops = get_dma_ops(dev);
-
-       BUG_ON(!dma_ops);
-
-       return dma_ops->map_page(dev, virt_to_page(cpu_addr),
-                                (unsigned long)cpu_addr % PAGE_SIZE, size,
-                                direction, attrs);
-}
-
-static inline void dma_unmap_single_attrs(struct device *dev,
-                                         dma_addr_t dma_addr,
-                                         size_t size,
-                                         enum dma_data_direction direction,
-                                         struct dma_attrs *attrs)
-{
-       struct dma_map_ops *dma_ops = get_dma_ops(dev);
-
-       BUG_ON(!dma_ops);
-
-       dma_ops->unmap_page(dev, dma_addr, size, direction, attrs);
-}
-
-static inline dma_addr_t dma_map_page_attrs(struct device *dev,
-                                           struct page *page,
-                                           unsigned long offset, size_t size,
-                                           enum dma_data_direction direction,
-                                           struct dma_attrs *attrs)
-{
-       struct dma_map_ops *dma_ops = get_dma_ops(dev);
-
-       BUG_ON(!dma_ops);
-
-       return dma_ops->map_page(dev, page, offset, size, direction, attrs);
-}
-
-static inline void dma_unmap_page_attrs(struct device *dev,
-                                       dma_addr_t dma_address,
-                                       size_t size,
-                                       enum dma_data_direction direction,
-                                       struct dma_attrs *attrs)
-{
-       struct dma_map_ops *dma_ops = get_dma_ops(dev);
-
-       BUG_ON(!dma_ops);
-
-       dma_ops->unmap_page(dev, dma_address, size, direction, attrs);
-}
-
-static inline int dma_map_sg_attrs(struct device *dev, struct scatterlist *sg,
-                                  int nents, enum dma_data_direction direction,
-                                  struct dma_attrs *attrs)
-{
-       struct dma_map_ops *dma_ops = get_dma_ops(dev);
-
-       BUG_ON(!dma_ops);
-       return dma_ops->map_sg(dev, sg, nents, direction, attrs);
-}
-
-static inline void dma_unmap_sg_attrs(struct device *dev,
-                                     struct scatterlist *sg,
-                                     int nhwentries,
-                                     enum dma_data_direction direction,
-                                     struct dma_attrs *attrs)
-{
-       struct dma_map_ops *dma_ops = get_dma_ops(dev);
-
-       BUG_ON(!dma_ops);
-       dma_ops->unmap_sg(dev, sg, nhwentries, direction, attrs);
-}
-
 static inline void *dma_alloc_coherent(struct device *dev, size_t size,
                                       dma_addr_t *dma_handle, gfp_t flag)
 {
@@ -216,161 +141,6 @@ static inline void dma_free_coherent(struct device *dev, size_t size,
        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_map_single_attrs(dev, cpu_addr, size, direction, NULL);
-}
-
-static inline void dma_unmap_single(struct device *dev, dma_addr_t dma_addr,
-                                   size_t size,
-                                   enum dma_data_direction direction)
-{
-       dma_unmap_single_attrs(dev, dma_addr, size, direction, NULL);
-}
-
-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_map_page_attrs(dev, page, offset, size, direction, NULL);
-}
-
-static inline void dma_unmap_page(struct device *dev, dma_addr_t dma_address,
-                                 size_t size,
-                                 enum dma_data_direction direction)
-{
-       dma_unmap_page_attrs(dev, dma_address, size, direction, NULL);
-}
-
-static inline int dma_map_sg(struct device *dev, struct scatterlist *sg,
-                            int nents, enum dma_data_direction direction)
-{
-       return dma_map_sg_attrs(dev, sg, nents, direction, NULL);
-}
-
-static inline void dma_unmap_sg(struct device *dev, struct scatterlist *sg,
-                               int nhwentries,
-                               enum dma_data_direction direction)
-{
-       dma_unmap_sg_attrs(dev, sg, nhwentries, direction, NULL);
-}
-
-#ifdef CONFIG_PPC_NEED_DMA_SYNC_OPS
-static inline void dma_sync_single_for_cpu(struct device *dev,
-               dma_addr_t dma_handle, size_t size,
-               enum dma_data_direction direction)
-{
-       struct dma_map_ops *dma_ops = get_dma_ops(dev);
-
-       BUG_ON(!dma_ops);
-
-       if (dma_ops->sync_single_range_for_cpu)
-               dma_ops->sync_single_range_for_cpu(dev, dma_handle, 0,
-                                          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)
-{
-       struct dma_map_ops *dma_ops = get_dma_ops(dev);
-
-       BUG_ON(!dma_ops);
-
-       if (dma_ops->sync_single_range_for_device)
-               dma_ops->sync_single_range_for_device(dev, dma_handle,
-                                             0, size, direction);
-}
-
-static inline void dma_sync_sg_for_cpu(struct device *dev,
-               struct scatterlist *sgl, int nents,
-               enum dma_data_direction direction)
-{
-       struct dma_map_ops *dma_ops = get_dma_ops(dev);
-
-       BUG_ON(!dma_ops);
-
-       if (dma_ops->sync_sg_for_cpu)
-               dma_ops->sync_sg_for_cpu(dev, sgl, nents, direction);
-}
-
-static inline void dma_sync_sg_for_device(struct device *dev,
-               struct scatterlist *sgl, int nents,
-               enum dma_data_direction direction)
-{
-       struct dma_map_ops *dma_ops = get_dma_ops(dev);
-
-       BUG_ON(!dma_ops);
-
-       if (dma_ops->sync_sg_for_device)
-               dma_ops->sync_sg_for_device(dev, sgl, nents, direction);
-}
-
-static inline void dma_sync_single_range_for_cpu(struct device *dev,
-               dma_addr_t dma_handle, unsigned long offset, size_t size,
-               enum dma_data_direction direction)
-{
-       struct dma_map_ops *dma_ops = get_dma_ops(dev);
-
-       BUG_ON(!dma_ops);
-
-       if (dma_ops->sync_single_range_for_cpu)
-               dma_ops->sync_single_range_for_cpu(dev, dma_handle,
-                                          offset, size, direction);
-}
-
-static inline void dma_sync_single_range_for_device(struct device *dev,
-               dma_addr_t dma_handle, unsigned long offset, size_t size,
-               enum dma_data_direction direction)
-{
-       struct dma_map_ops *dma_ops = get_dma_ops(dev);
-
-       BUG_ON(!dma_ops);
-
-       if (dma_ops->sync_single_range_for_device)
-               dma_ops->sync_single_range_for_device(dev, dma_handle, offset,
-                                             size, direction);
-}
-#else /* CONFIG_PPC_NEED_DMA_SYNC_OPS */
-static inline void dma_sync_single_for_cpu(struct device *dev,
-               dma_addr_t dma_handle, size_t size,
-               enum dma_data_direction 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)
-{
-}
-
-static inline void dma_sync_sg_for_cpu(struct device *dev,
-               struct scatterlist *sgl, int nents,
-               enum dma_data_direction direction)
-{
-}
-
-static inline void dma_sync_sg_for_device(struct device *dev,
-               struct scatterlist *sgl, int nents,
-               enum dma_data_direction direction)
-{
-}
-
-static inline void dma_sync_single_range_for_cpu(struct device *dev,
-               dma_addr_t dma_handle, unsigned long offset, size_t size,
-               enum dma_data_direction direction)
-{
-}
-
-static inline void dma_sync_single_range_for_device(struct device *dev,
-               dma_addr_t dma_handle, unsigned long offset, size_t size,
-               enum dma_data_direction direction)
-{
-}
-#endif
-
 static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
 {
 #ifdef CONFIG_PPC64