[ALSA] Remove unneeded ugly hack for i386 in memalloc.c

The hack for dma_alloc_coherent() is no longer needed on 2.6.26 since
the base code was improved.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>

diff --git a/sound/core/memalloc.c b/sound/core/memalloc.c
index 23b7bc0..f5d6d8d 100644 (file)
--- a/sound/core/memalloc.c
+++ b/sound/core/memalloc.c
@@ -80,68 +80,6 @@ struct snd_mem_list {
 #endif
 
 /*
- *  Hacks
- */
-
-#if defined(__i386__)
-/*
- * A hack to allocate large buffers via dma_alloc_coherent()
- *
- * since dma_alloc_coherent always tries GFP_DMA when the requested
- * pci memory region is below 32bit, it happens quite often that even
- * 2 order of pages cannot be allocated.
- *
- * so in the following, we allocate at first without dma_mask, so that
- * allocation will be done without GFP_DMA.  if the area doesn't match
- * with the requested region, then realloate with the original dma_mask
- * again.
- *
- * Really, we want to move this type of thing into dma_alloc_coherent()
- * so dma_mask doesn't have to be messed with.
- */
-
-static void *snd_dma_hack_alloc_coherent(struct device *dev, size_t size,
-                                        dma_addr_t *dma_handle,
-                                        gfp_t flags)
-{
-       void *ret;
-       u64 dma_mask, coherent_dma_mask;
-
-       if (dev == NULL || !dev->dma_mask)
-               return dma_alloc_coherent(dev, size, dma_handle, flags);
-       dma_mask = *dev->dma_mask;
-       coherent_dma_mask = dev->coherent_dma_mask;
-       *dev->dma_mask = 0xffffffff;    /* do without masking */
-       dev->coherent_dma_mask = 0xffffffff;    /* do without masking */
-       ret = dma_alloc_coherent(dev, size, dma_handle, flags);
-       *dev->dma_mask = dma_mask;      /* restore */
-       dev->coherent_dma_mask = coherent_dma_mask;     /* restore */
-       if (ret) {
-               /* obtained address is out of range? */
-               if (((unsigned long)*dma_handle + size - 1) & ~dma_mask) {
-                       /* reallocate with the proper mask */
-                       dma_free_coherent(dev, size, ret, *dma_handle);
-                       ret = dma_alloc_coherent(dev, size, dma_handle, flags);
-               }
-       } else {
-               /* wish to success now with the proper mask... */
-               if (dma_mask != 0xffffffffUL) {
-                       /* allocation with GFP_ATOMIC to avoid the long stall */
-                       flags &= ~GFP_KERNEL;
-                       flags |= GFP_ATOMIC;
-                       ret = dma_alloc_coherent(dev, size, dma_handle, flags);
-               }
-       }
-       return ret;
-}
-
-/* redefine dma_alloc_coherent for some architectures */
-#undef dma_alloc_coherent
-#define dma_alloc_coherent snd_dma_hack_alloc_coherent
-
-#endif /* arch */
-
-/*
  *
  *  Generic memory allocators
  *