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author | David S. Miller <davem@davemloft.net> | 2008-10-11 21:39:35 +0200 |
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committer | David S. Miller <davem@davemloft.net> | 2008-10-11 21:39:35 +0200 |
commit | 56c5d900dbb8e042bfad035d18433476931d8f93 (patch) | |
tree | 00b793965beeef10db03e0ff021d2d965c410759 /include/sound/memalloc.h | |
parent | leo: disable cursor when leaving graphics mode (diff) | |
parent | Merge phase #4 (X2APIC, APIC unification, CPU identification unification) of ... (diff) | |
download | linux-56c5d900dbb8e042bfad035d18433476931d8f93.tar.xz linux-56c5d900dbb8e042bfad035d18433476931d8f93.zip |
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts:
sound/core/memalloc.c
Diffstat (limited to 'include/sound/memalloc.h')
-rw-r--r-- | include/sound/memalloc.h | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/include/sound/memalloc.h b/include/sound/memalloc.h index 6a3e7558a7e6..7ccce94a5255 100644 --- a/include/sound/memalloc.h +++ b/include/sound/memalloc.h @@ -63,6 +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; @@ -90,9 +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, |