These changes are the raw update to linux-4.4.6-rt14. Kernel sources

[kvmfornfv.git] / kernel / arch / powerpc / include / asm / dma-mapping.h

diff --git a/kernel/arch/powerpc/include/asm/dma-mapping.h b/kernel/arch/powerpc/include/asm/dma-mapping.h
index 9103687..7f522c0 100644 (file)
--- a/kernel/arch/powerpc/include/asm/dma-mapping.h
+++ b/kernel/arch/powerpc/include/asm/dma-mapping.h
@@ -18,15 +18,17 @@
 #include <asm/io.h>
 #include <asm/swiotlb.h>
 
+#ifdef CONFIG_PPC64
 #define DMA_ERROR_CODE         (~(dma_addr_t)0x0)
+#endif
 
 /* Some dma direct funcs must be visible for use in other dma_ops */
-extern void *dma_direct_alloc_coherent(struct device *dev, size_t size,
-                                      dma_addr_t *dma_handle, gfp_t flag,
+extern void *__dma_direct_alloc_coherent(struct device *dev, size_t size,
+                                        dma_addr_t *dma_handle, gfp_t flag,
+                                        struct dma_attrs *attrs);
+extern void __dma_direct_free_coherent(struct device *dev, size_t size,
+                                      void *vaddr, dma_addr_t dma_handle,
                                       struct dma_attrs *attrs);
-extern void dma_direct_free_coherent(struct device *dev, size_t size,
-                                    void *vaddr, dma_addr_t dma_handle,
-                                    struct dma_attrs *attrs);
 extern int dma_direct_mmap_coherent(struct device *dev,
                                    struct vm_area_struct *vma,
                                    void *cpu_addr, dma_addr_t handle,
@@ -106,7 +108,7 @@ static inline void set_dma_ops(struct device *dev, struct dma_map_ops *ops)
 static inline dma_addr_t get_dma_offset(struct device *dev)
 {
        if (dev)
-               return dev->archdata.dma_data.dma_offset;
+               return dev->archdata.dma_offset;
 
        return PCI_DRAM_OFFSET;
 }
@@ -114,77 +116,20 @@ static inline dma_addr_t get_dma_offset(struct device *dev)
 static inline void set_dma_offset(struct device *dev, dma_addr_t off)
 {
        if (dev)
-               dev->archdata.dma_data.dma_offset = off;
+               dev->archdata.dma_offset = off;
 }
 
 /* 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);
+#define HAVE_ARCH_DMA_SET_MASK 1
+extern int dma_set_mask(struct device *dev, u64 dma_mask);
 
-       if (unlikely(dma_ops == NULL))
-               return 0;
-       if (dma_ops->dma_supported == NULL)
-               return 1;
-       return dma_ops->dma_supported(dev, mask);
-}
+#include <asm-generic/dma-mapping-common.h>
 
-extern int dma_set_mask(struct device *dev, u64 dma_mask);
 extern int __dma_set_mask(struct device *dev, u64 dma_mask);
 extern u64 __dma_get_required_mask(struct device *dev);
 
-#define dma_alloc_coherent(d,s,h,f)    dma_alloc_attrs(d,s,h,f,NULL)
-
-static inline void *dma_alloc_attrs(struct device *dev, size_t size,
-                                   dma_addr_t *dma_handle, gfp_t flag,
-                                   struct dma_attrs *attrs)
-{
-       struct dma_map_ops *dma_ops = get_dma_ops(dev);
-       void *cpu_addr;
-
-       BUG_ON(!dma_ops);
-
-       cpu_addr = dma_ops->alloc(dev, size, dma_handle, flag, attrs);
-
-       debug_dma_alloc_coherent(dev, size, *dma_handle, cpu_addr);
-
-       return cpu_addr;
-}
-
-#define dma_free_coherent(d,s,c,h) dma_free_attrs(d,s,c,h,NULL)
-
-static inline void dma_free_attrs(struct device *dev, size_t size,
-                                 void *cpu_addr, dma_addr_t dma_handle,
-                                 struct dma_attrs *attrs)
-{
-       struct dma_map_ops *dma_ops = get_dma_ops(dev);
-
-       BUG_ON(!dma_ops);
-
-       debug_dma_free_coherent(dev, size, cpu_addr, dma_handle);
-
-       dma_ops->free(dev, size, cpu_addr, dma_handle, attrs);
-}
-
-static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
-{
-       struct dma_map_ops *dma_ops = get_dma_ops(dev);
-
-       debug_dma_mapping_error(dev, dma_addr);
-       if (dma_ops->mapping_error)
-               return dma_ops->mapping_error(dev, dma_addr);
-
-#ifdef CONFIG_PPC64
-       return (dma_addr == DMA_ERROR_CODE);
-#else
-       return 0;
-#endif
-}
-
 static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
 {
 #ifdef CONFIG_SWIOTLB
@@ -210,9 +155,6 @@ static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr)
        return daddr - get_dma_offset(dev);
 }
 
-#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 ARCH_HAS_DMA_MMAP_COHERENT
 
 static inline void dma_cache_sync(struct device *dev, void *vaddr, size_t size,