package/b43/patches/002-ssb-backport.patch

   1 Index: b43/dma.c
   2 ===================================================================
   3 --- b43.orig/dma.c      2008-07-27 13:56:25.000000000 +0200
   4 +++ b43/dma.c   2008-07-27 14:02:26.000000000 +0200
   5 @@ -328,11 +328,11 @@ static inline
   6         dma_addr_t dmaaddr;
   7
   8         if (tx) {
   9 -               dmaaddr = ssb_dma_map_single(ring->dev->dev,
  10 -                                            buf, len, DMA_TO_DEVICE);
  11 +               dmaaddr = dma_map_single(ring->dev->dev->dma_dev,
  12 +                                        buf, len, DMA_TO_DEVICE);
  13         } else {
  14 -               dmaaddr = ssb_dma_map_single(ring->dev->dev,
  15 -                                            buf, len, DMA_FROM_DEVICE);
  16 +               dmaaddr = dma_map_single(ring->dev->dev->dma_dev,
  17 +                                        buf, len, DMA_FROM_DEVICE);
  18         }
  19
  20         return dmaaddr;
  21 @@ -343,11 +343,11 @@ static inline
  22                           dma_addr_t addr, size_t len, int tx)
  23  {
  24         if (tx) {
  25 -               ssb_dma_unmap_single(ring->dev->dev,
  26 -                                    addr, len, DMA_TO_DEVICE);
  27 +               dma_unmap_single(ring->dev->dev->dma_dev,
  28 +                                addr, len, DMA_TO_DEVICE);
  29         } else {
  30 -               ssb_dma_unmap_single(ring->dev->dev,
  31 -                                    addr, len, DMA_FROM_DEVICE);
  32 +               dma_unmap_single(ring->dev->dev->dma_dev,
  33 +                                addr, len, DMA_FROM_DEVICE);
  34         }
  35  }
  36
  37 @@ -356,8 +356,8 @@ static inline
  38                                  dma_addr_t addr, size_t len)
  39  {
  40         B43_WARN_ON(ring->tx);
  41 -       ssb_dma_sync_single_for_cpu(ring->dev->dev,
  42 -                                   addr, len, DMA_FROM_DEVICE);
  43 +       dma_sync_single_for_cpu(ring->dev->dev->dma_dev,
  44 +                               addr, len, DMA_FROM_DEVICE);
  45  }
  46
  47  static inline
  48 @@ -365,8 +365,8 @@ static inline
  49                                     dma_addr_t addr, size_t len)
  50  {
  51         B43_WARN_ON(ring->tx);
  52 -       ssb_dma_sync_single_for_device(ring->dev->dev,
  53 -                                      addr, len, DMA_FROM_DEVICE);
  54 +       dma_sync_single_for_device(ring->dev->dev->dma_dev,
  55 +                                  addr, len, DMA_FROM_DEVICE);
  56  }
  57
  58  static inline
  59 @@ -381,6 +381,7 @@ static inline
  60
  61  static int alloc_ringmemory(struct b43_dmaring *ring)
  62  {
  63 +       struct device *dma_dev = ring->dev->dev->dma_dev;
  64         gfp_t flags = GFP_KERNEL;
  65
  66         /* The specs call for 4K buffers for 30- and 32-bit DMA with 4K
  67 @@ -391,14 +392,11 @@ static int alloc_ringmemory(struct b43_dmaring *ring)
  68          * For unknown reasons - possibly a hardware error - the BCM4311 rev
  69          * 02, which uses 64-bit DMA, needs the ring buffer in very low memory,
  70          * which accounts for the GFP_DMA flag below.
  71 -        *
  72 -        * The flags here must match the flags in free_ringmemory below!
  73          */
  74         if (ring->type == B43_DMA_64BIT)
  75                 flags |= GFP_DMA;
  76 -       ring->descbase = ssb_dma_alloc_consistent(ring->dev->dev,
  77 -                                                 B43_DMA_RINGMEMSIZE,
  78 -                                                 &(ring->dmabase), flags);
  79 +       ring->descbase = dma_alloc_coherent(dma_dev, B43_DMA_RINGMEMSIZE,
  80 +                                           &(ring->dmabase), flags);
  81         if (!ring->descbase) {
  82                 b43err(ring->dev->wl, "DMA ringmemory allocation failed\n");
  83                 return -ENOMEM;
  84 @@ -410,13 +408,10 @@ static int alloc_ringmemory(struct b43_dmaring *ring)
  85
  86  static void free_ringmemory(struct b43_dmaring *ring)
  87  {
  88 -       gfp_t flags = GFP_KERNEL;
  89 -
  90 -       if (ring->type == B43_DMA_64BIT)
  91 -               flags |= GFP_DMA;
  92 +       struct device *dma_dev = ring->dev->dev->dma_dev;
  93
  94 -       ssb_dma_free_consistent(ring->dev->dev, B43_DMA_RINGMEMSIZE,
  95 -                               ring->descbase, ring->dmabase, flags);
  96 +       dma_free_coherent(dma_dev, B43_DMA_RINGMEMSIZE,
  97 +                         ring->descbase, ring->dmabase);
  98  }
  99
 100  /* Reset the RX DMA channel */
 101 @@ -523,7 +518,7 @@ static bool b43_dma_mapping_error(struct b43_dmaring *ring,
 102                                   dma_addr_t addr,
 103                                   size_t buffersize, bool dma_to_device)
 104  {
 105 -       if (unlikely(ssb_dma_mapping_error(ring->dev->dev, addr)))
 106 +       if (unlikely(dma_mapping_error(addr)))
 107                 return 1;
 108
 109         switch (ring->type) {
 110 @@ -849,10 +844,10 @@ struct b43_dmaring *b43_setup_dmaring(struct b43_wldev *dev,
 111                         goto err_kfree_meta;
 112
 113                 /* test for ability to dma to txhdr_cache */
 114 -               dma_test = ssb_dma_map_single(dev->dev,
 115 -                                             ring->txhdr_cache,
 116 -                                             b43_txhdr_size(dev),
 117 -                                             DMA_TO_DEVICE);
 118 +               dma_test = dma_map_single(dev->dev->dma_dev,
 119 +                                         ring->txhdr_cache,
 120 +                                         b43_txhdr_size(dev),
 121 +                                         DMA_TO_DEVICE);
 122
 123                 if (b43_dma_mapping_error(ring, dma_test,
 124                                           b43_txhdr_size(dev), 1)) {
 125 @@ -864,10 +859,10 @@ struct b43_dmaring *b43_setup_dmaring(struct b43_wldev *dev,
 126                         if (!ring->txhdr_cache)
 127                                 goto err_kfree_meta;
 128
 129 -                       dma_test = ssb_dma_map_single(dev->dev,
 130 -                                                     ring->txhdr_cache,
 131 -                                                     b43_txhdr_size(dev),
 132 -                                                     DMA_TO_DEVICE);
 133 +                       dma_test = dma_map_single(dev->dev->dma_dev,
 134 +                                                 ring->txhdr_cache,
 135 +                                                 b43_txhdr_size(dev),
 136 +                                                 DMA_TO_DEVICE);
 137
 138                         if (b43_dma_mapping_error(ring, dma_test,
 139                                                   b43_txhdr_size(dev), 1)) {
 140 @@ -878,9 +873,9 @@ struct b43_dmaring *b43_setup_dmaring(struct b43_wldev *dev,
 141                         }
 142                 }
 143
 144 -               ssb_dma_unmap_single(dev->dev,
 145 -                                    dma_test, b43_txhdr_size(dev),
 146 -                                    DMA_TO_DEVICE);
 147 +               dma_unmap_single(dev->dev->dma_dev,
 148 +                                dma_test, b43_txhdr_size(dev),
 149 +                                DMA_TO_DEVICE);
 150         }
 151
 152         err = alloc_ringmemory(ring);