diff options
author | Arjan van de Ven <arjan@linux.intel.com> | 2008-10-17 09:20:26 -0700 |
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committer | Arjan van de Ven <arjan@linux.intel.com> | 2008-10-17 09:20:26 -0700 |
commit | 651dab4264e4ba0e563f5ff56f748127246e9065 (patch) | |
tree | 016630974bdcb00fe529b673f96d389e0fd6dc94 /include/sound/memalloc.h | |
parent | 40b8606253552109815786e5d4b0de98782d31f5 (diff) | |
parent | 2e532d68a2b3e2aa6b19731501222069735c741c (diff) |
Merge commit 'linus/master' into merge-linus
Conflicts:
arch/x86/kvm/i8254.c
Diffstat (limited to 'include/sound/memalloc.h')
-rw-r--r-- | include/sound/memalloc.h | 18 |
1 files changed, 15 insertions, 3 deletions
diff --git a/include/sound/memalloc.h b/include/sound/memalloc.h index ae2921d9ddc..7ccce94a525 100644 --- a/include/sound/memalloc.h +++ b/include/sound/memalloc.h @@ -37,7 +37,6 @@ struct snd_dma_device { #ifndef snd_dma_pci_data #define snd_dma_pci_data(pci) (&(pci)->dev) #define snd_dma_isa_data() NULL -#define snd_dma_sbus_data(sbus) ((struct device *)(sbus)) #define snd_dma_continuous_data(x) ((struct device *)(unsigned long)(x)) #endif @@ -49,7 +48,6 @@ struct snd_dma_device { #define SNDRV_DMA_TYPE_CONTINUOUS 1 /* continuous no-DMA memory */ #define SNDRV_DMA_TYPE_DEV 2 /* generic device continuous */ #define SNDRV_DMA_TYPE_DEV_SG 3 /* generic device SG-buffer */ -#define SNDRV_DMA_TYPE_SBUS 4 /* SBUS continuous */ /* * info for buffer allocation @@ -65,6 +63,11 @@ struct snd_dma_buffer { /* * Scatter-Gather generic device pages */ +void *snd_malloc_sgbuf_pages(struct device *device, + size_t size, struct snd_dma_buffer *dmab, + size_t *res_size); +int snd_free_sgbuf_pages(struct snd_dma_buffer *dmab); + struct snd_sg_page { void *buf; dma_addr_t addr; @@ -92,9 +95,18 @@ static inline unsigned int snd_sgbuf_aligned_pages(size_t size) */ static inline dma_addr_t snd_sgbuf_get_addr(struct snd_sg_buf *sgbuf, size_t offset) { - return sgbuf->table[offset >> PAGE_SHIFT].addr + offset % PAGE_SIZE; + dma_addr_t addr = sgbuf->table[offset >> PAGE_SHIFT].addr; + addr &= PAGE_MASK; + return addr + offset % PAGE_SIZE; } +/* + * return the virtual address at the corresponding offset + */ +static inline void *snd_sgbuf_get_ptr(struct snd_sg_buf *sgbuf, size_t offset) +{ + return sgbuf->table[offset >> PAGE_SHIFT].buf + offset % PAGE_SIZE; +} /* allocate/release a buffer */ int snd_dma_alloc_pages(int type, struct device *dev, size_t size, |