arch/mips/include/asm/mach-cavium-octeon/dma-coherence.h

   1 /*
   2  * This file is subject to the terms and conditions of the GNU General Public
   3  * License.  See the file "COPYING" in the main directory of this archive
   4  * for more details.
   5  *
   6  * Copyright (C) 2006  Ralf Baechle <ralf@linux-mips.org>
   7  *
   8  *
   9  * Similar to mach-generic/dma-coherence.h except
  10  * plat_device_is_coherent hard coded to return 1.
  11  *
  12  */
  13 #ifndef __ASM_MACH_CAVIUM_OCTEON_DMA_COHERENCE_H
  14 #define __ASM_MACH_CAVIUM_OCTEON_DMA_COHERENCE_H
  15
  16 struct device;
  17
  18 extern void octeon_pci_dma_init(void);
  19
  20 static inline dma_addr_t plat_map_dma_mem(struct device *dev, void *addr,
  21         size_t size)
  22 {
  23         BUG();
  24 }
  25
  26 static inline dma_addr_t plat_map_dma_mem_page(struct device *dev,
  27         struct page *page)
  28 {
  29         BUG();
  30 }
  31
  32 static inline unsigned long plat_dma_addr_to_phys(struct device *dev,
  33         dma_addr_t dma_addr)
  34 {
  35         BUG();
  36 }
  37
  38 static inline void plat_unmap_dma_mem(struct device *dev, dma_addr_t dma_addr,
  39         size_t size, enum dma_data_direction direction)
  40 {
  41         BUG();
  42 }
  43
  44 static inline int plat_dma_supported(struct device *dev, u64 mask)
  45 {
  46         BUG();
  47 }
  48
  49 static inline void plat_extra_sync_for_device(struct device *dev)
  50 {
  51         BUG();
  52 }
  53
  54 static inline int plat_device_is_coherent(struct device *dev)
  55 {
  56         return 1;
  57 }
  58
  59 static inline int plat_dma_mapping_error(struct device *dev,
  60                                          dma_addr_t dma_addr)
  61 {
  62         BUG();
  63 }
  64
  65 dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr);
  66 phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr);
  67
  68 struct dma_map_ops;
  69 extern struct dma_map_ops *octeon_pci_dma_map_ops;
  70 extern char *octeon_swiotlb;
  71
  72 #endif /* __ASM_MACH_CAVIUM_OCTEON_DMA_COHERENCE_H */