target/linux/generic/patches-3.10/130-mips_remove_plat_dma_functions.patch

   1 From 151c4e4a06b0b8d16c2fd392bb0e33868b12357f Mon Sep 17 00:00:00 2001
   2 From: Felix Fietkau <nbd@openwrt.org>
   3 Date: Mon, 12 Aug 2013 12:45:52 +0200
   4 Subject: [PATCH] MIPS: remove unnecessary platform dma helper functions
   5
   6 Signed-off-by: Felix Fietkau <nbd@openwrt.org>
   7 ---
   8  arch/mips/include/asm/mach-cavium-octeon/dma-coherence.h | 12 ------------
   9  arch/mips/include/asm/mach-generic/dma-coherence.h       | 10 ----------
  10  arch/mips/include/asm/mach-ip27/dma-coherence.h          | 10 ----------
  11  arch/mips/include/asm/mach-ip32/dma-coherence.h          | 11 -----------
  12  arch/mips/include/asm/mach-jazz/dma-coherence.h          | 10 ----------
  13  arch/mips/include/asm/mach-loongson/dma-coherence.h      | 10 ----------
  14  arch/mips/include/asm/mach-powertv/dma-coherence.h       | 10 ----------
  15  arch/mips/mm/dma-default.c                               |  4 +---
  16  8 files changed, 1 insertion(+), 76 deletions(-)
  17
  18 --- a/arch/mips/include/asm/mach-cavium-octeon/dma-coherence.h
  19 +++ b/arch/mips/include/asm/mach-cavium-octeon/dma-coherence.h
  20 @@ -46,22 +46,11 @@ static inline int plat_dma_supported(str
  21         BUG();
  22  }
  23
  24 -static inline void plat_extra_sync_for_device(struct device *dev)
  25 -{
  26 -       BUG();
  27 -}
  28 -
  29  static inline int plat_device_is_coherent(struct device *dev)
  30  {
  31         return 1;
  32  }
  33
  34 -static inline int plat_dma_mapping_error(struct device *dev,
  35 -                                        dma_addr_t dma_addr)
  36 -{
  37 -       BUG();
  38 -}
  39 -
  40  dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr);
  41  phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr);
  42
  43 --- a/arch/mips/include/asm/mach-generic/dma-coherence.h
  44 +++ b/arch/mips/include/asm/mach-generic/dma-coherence.h
  45 @@ -47,16 +47,6 @@ static inline int plat_dma_supported(str
  46         return 1;
  47  }
  48
  49 -static inline void plat_extra_sync_for_device(struct device *dev)
  50 -{
  51 -}
  52 -
  53 -static inline int plat_dma_mapping_error(struct device *dev,
  54 -                                        dma_addr_t dma_addr)
  55 -{
  56 -       return 0;
  57 -}
  58 -
  59  static inline int plat_device_is_coherent(struct device *dev)
  60  {
  61  #ifdef CONFIG_DMA_COHERENT
  62 --- a/arch/mips/include/asm/mach-ip27/dma-coherence.h
  63 +++ b/arch/mips/include/asm/mach-ip27/dma-coherence.h
  64 @@ -58,16 +58,6 @@ static inline int plat_dma_supported(str
  65         return 1;
  66  }
  67
  68 -static inline void plat_extra_sync_for_device(struct device *dev)
  69 -{
  70 -}
  71 -
  72 -static inline int plat_dma_mapping_error(struct device *dev,
  73 -                                        dma_addr_t dma_addr)
  74 -{
  75 -       return 0;
  76 -}
  77 -
  78  static inline int plat_device_is_coherent(struct device *dev)
  79  {
  80         return 1;               /* IP27 non-cohernet mode is unsupported */
  81 --- a/arch/mips/include/asm/mach-ip32/dma-coherence.h
  82 +++ b/arch/mips/include/asm/mach-ip32/dma-coherence.h
  83 @@ -80,17 +80,6 @@ static inline int plat_dma_supported(str
  84         return 1;
  85  }
  86
  87 -static inline void plat_extra_sync_for_device(struct device *dev)
  88 -{
  89 -       return;
  90 -}
  91 -
  92 -static inline int plat_dma_mapping_error(struct device *dev,
  93 -                                        dma_addr_t dma_addr)
  94 -{
  95 -       return 0;
  96 -}
  97 -
  98  static inline int plat_device_is_coherent(struct device *dev)
  99  {
 100         return 0;               /* IP32 is non-cohernet */
 101 --- a/arch/mips/include/asm/mach-jazz/dma-coherence.h
 102 +++ b/arch/mips/include/asm/mach-jazz/dma-coherence.h
 103 @@ -48,16 +48,6 @@ static inline int plat_dma_supported(str
 104         return 1;
 105  }
 106
 107 -static inline void plat_extra_sync_for_device(struct device *dev)
 108 -{
 109 -}
 110 -
 111 -static inline int plat_dma_mapping_error(struct device *dev,
 112 -                                        dma_addr_t dma_addr)
 113 -{
 114 -       return 0;
 115 -}
 116 -
 117  static inline int plat_device_is_coherent(struct device *dev)
 118  {
 119         return 0;
 120 --- a/arch/mips/include/asm/mach-loongson/dma-coherence.h
 121 +++ b/arch/mips/include/asm/mach-loongson/dma-coherence.h
 122 @@ -53,16 +53,6 @@ static inline int plat_dma_supported(str
 123         return 1;
 124  }
 125
 126 -static inline void plat_extra_sync_for_device(struct device *dev)
 127 -{
 128 -}
 129 -
 130 -static inline int plat_dma_mapping_error(struct device *dev,
 131 -                                        dma_addr_t dma_addr)
 132 -{
 133 -       return 0;
 134 -}
 135 -
 136  static inline int plat_device_is_coherent(struct device *dev)
 137  {
 138         return 0;
 139 --- a/arch/mips/include/asm/mach-powertv/dma-coherence.h
 140 +++ b/arch/mips/include/asm/mach-powertv/dma-coherence.h
 141 @@ -99,16 +99,6 @@ static inline int plat_dma_supported(str
 142         return 1;
 143  }
 144
 145 -static inline void plat_extra_sync_for_device(struct device *dev)
 146 -{
 147 -}
 148 -
 149 -static inline int plat_dma_mapping_error(struct device *dev,
 150 -                                        dma_addr_t dma_addr)
 151 -{
 152 -       return 0;
 153 -}
 154 -
 155  static inline int plat_device_is_coherent(struct device *dev)
 156  {
 157         return 0;
 158 --- a/arch/mips/mm/dma-default.c
 159 +++ b/arch/mips/mm/dma-default.c
 160 @@ -289,7 +289,6 @@ static void mips_dma_sync_single_for_cpu
 161  static void mips_dma_sync_single_for_device(struct device *dev,
 162         dma_addr_t dma_handle, size_t size, enum dma_data_direction direction)
 163  {
 164 -       plat_extra_sync_for_device(dev);
 165         if (!plat_device_is_coherent(dev))
 166                 __dma_sync(dma_addr_to_page(dev, dma_handle),
 167                            dma_handle & ~PAGE_MASK, size, direction);
 168 @@ -323,7 +322,7 @@ static void mips_dma_sync_sg_for_device(
 169
 170  int mips_dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
 171  {
 172 -       return plat_dma_mapping_error(dev, dma_addr);
 173 +       return 0;
 174  }
 175
 176  int mips_dma_supported(struct device *dev, u64 mask)
 177 @@ -336,7 +335,6 @@ void dma_cache_sync(struct device *dev,
 178  {
 179         BUG_ON(direction == DMA_NONE);
 180
 181 -       plat_extra_sync_for_device(dev);
 182         if (!plat_device_is_coherent(dev))
 183                 __dma_sync_virtual(vaddr, size, direction);
 184  }