target/linux/generic/patches-3.12/130-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 @@ -52,23 +52,11 @@ static inline int plat_dma_supported(str
  21         return 0;
  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 -       return 0;
  39 -}
  40 -
  41  dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr);
  42  phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr);
  43
  44 --- a/arch/mips/include/asm/mach-generic/dma-coherence.h
  45 +++ b/arch/mips/include/asm/mach-generic/dma-coherence.h
  46 @@ -47,16 +47,6 @@ static inline int plat_dma_supported(str
  47         return 1;
  48  }
  49
  50 -static inline void plat_extra_sync_for_device(struct device *dev)
  51 -{
  52 -}
  53 -
  54 -static inline int plat_dma_mapping_error(struct device *dev,
  55 -                                        dma_addr_t dma_addr)
  56 -{
  57 -       return 0;
  58 -}
  59 -
  60  static inline int plat_device_is_coherent(struct device *dev)
  61  {
  62  #ifdef CONFIG_DMA_COHERENT
  63 --- a/arch/mips/include/asm/mach-ip27/dma-coherence.h
  64 +++ b/arch/mips/include/asm/mach-ip27/dma-coherence.h
  65 @@ -58,16 +58,6 @@ static inline int plat_dma_supported(str
  66         return 1;
  67  }
  68
  69 -static inline void plat_extra_sync_for_device(struct device *dev)
  70 -{
  71 -}
  72 -
  73 -static inline int plat_dma_mapping_error(struct device *dev,
  74 -                                        dma_addr_t dma_addr)
  75 -{
  76 -       return 0;
  77 -}
  78 -
  79  static inline int plat_device_is_coherent(struct device *dev)
  80  {
  81         return 1;               /* IP27 non-cohernet mode is unsupported */
  82 --- a/arch/mips/include/asm/mach-ip32/dma-coherence.h
  83 +++ b/arch/mips/include/asm/mach-ip32/dma-coherence.h
  84 @@ -80,17 +80,6 @@ static inline int plat_dma_supported(str
  85         return 1;
  86  }
  87
  88 -static inline void plat_extra_sync_for_device(struct device *dev)
  89 -{
  90 -       return;
  91 -}
  92 -
  93 -static inline int plat_dma_mapping_error(struct device *dev,
  94 -                                        dma_addr_t dma_addr)
  95 -{
  96 -       return 0;
  97 -}
  98 -
  99  static inline int plat_device_is_coherent(struct device *dev)
 100  {
 101         return 0;               /* IP32 is non-cohernet */
 102 --- a/arch/mips/include/asm/mach-jazz/dma-coherence.h
 103 +++ b/arch/mips/include/asm/mach-jazz/dma-coherence.h
 104 @@ -48,16 +48,6 @@ static inline int plat_dma_supported(str
 105         return 1;
 106  }
 107
 108 -static inline void plat_extra_sync_for_device(struct device *dev)
 109 -{
 110 -}
 111 -
 112 -static inline int plat_dma_mapping_error(struct device *dev,
 113 -                                        dma_addr_t dma_addr)
 114 -{
 115 -       return 0;
 116 -}
 117 -
 118  static inline int plat_device_is_coherent(struct device *dev)
 119  {
 120         return 0;
 121 --- a/arch/mips/include/asm/mach-loongson/dma-coherence.h
 122 +++ b/arch/mips/include/asm/mach-loongson/dma-coherence.h
 123 @@ -53,16 +53,6 @@ static inline int plat_dma_supported(str
 124         return 1;
 125  }
 126
 127 -static inline void plat_extra_sync_for_device(struct device *dev)
 128 -{
 129 -}
 130 -
 131 -static inline int plat_dma_mapping_error(struct device *dev,
 132 -                                        dma_addr_t dma_addr)
 133 -{
 134 -       return 0;
 135 -}
 136 -
 137  static inline int plat_device_is_coherent(struct device *dev)
 138  {
 139         return 0;
 140 --- a/arch/mips/include/asm/mach-powertv/dma-coherence.h
 141 +++ b/arch/mips/include/asm/mach-powertv/dma-coherence.h
 142 @@ -99,16 +99,6 @@ static inline int plat_dma_supported(str
 143         return 1;
 144  }
 145
 146 -static inline void plat_extra_sync_for_device(struct device *dev)
 147 -{
 148 -}
 149 -
 150 -static inline int plat_dma_mapping_error(struct device *dev,
 151 -                                        dma_addr_t dma_addr)
 152 -{
 153 -       return 0;
 154 -}
 155 -
 156  static inline int plat_device_is_coherent(struct device *dev)
 157  {
 158         return 0;
 159 --- a/arch/mips/mm/dma-default.c
 160 +++ b/arch/mips/mm/dma-default.c
 161 @@ -297,7 +297,6 @@ static void mips_dma_sync_single_for_cpu
 162  static void mips_dma_sync_single_for_device(struct device *dev,
 163         dma_addr_t dma_handle, size_t size, enum dma_data_direction direction)
 164  {
 165 -       plat_extra_sync_for_device(dev);
 166         if (!plat_device_is_coherent(dev))
 167                 __dma_sync(dma_addr_to_page(dev, dma_handle),
 168                            dma_handle & ~PAGE_MASK, size, direction);
 169 @@ -327,7 +326,7 @@ static void mips_dma_sync_sg_for_device(
 170
 171  int mips_dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
 172  {
 173 -       return plat_dma_mapping_error(dev, dma_addr);
 174 +       return 0;
 175  }
 176
 177  int mips_dma_supported(struct device *dev, u64 mask)
 178 @@ -340,7 +339,6 @@ void dma_cache_sync(struct device *dev,
 179  {
 180         BUG_ON(direction == DMA_NONE);
 181
 182 -       plat_extra_sync_for_device(dev);
 183         if (!plat_device_is_coherent(dev))
 184                 __dma_sync_virtual(vaddr, size, direction);
 185  }