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| author |   Takashi Iwai <tiwai@suse.de> | 2021-06-09 18:25:50 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2021-06-10 10:15:21 +0200 |
| commit | a202bd1ad86d59c07f24f0a201c5ade320b51e30 (patch) | |
| tree | 54a7ef6463fbc5e02033fd9c97d77b6a8c4df195 /include/sound/memalloc.h | |
| parent | ALSA: core: Abstract memory alloc helpers (diff) | |
| download | linux-dev-a202bd1ad86d59c07f24f0a201c5ade320b51e30.tar.xz linux-dev-a202bd1ad86d59c07f24f0a201c5ade320b51e30.zip | |
ALSA: core: Move mmap handler into memalloc ops
This patch moves the mmap handling code into the common memalloc
handler. It allows us to reduce the memory-type specific code in PCM
code gracefully.
Link: https://lore.kernel.org/r/20210609162551.7842-5-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'include/sound/memalloc.h')
| -rw-r--r-- | include/sound/memalloc.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/sound/memalloc.h b/include/sound/memalloc.h index 6dc85a7f44ad..1918c60f1f35 100644 --- a/include/sound/memalloc.h +++ b/include/sound/memalloc.h @@ -11,6 +11,7 @@ struct device; struct page; +struct vm_area_struct; /* * buffer device info @@ -69,6 +70,8 @@ int snd_dma_alloc_pages(int type, struct device *dev, size_t size, int snd_dma_alloc_pages_fallback(int type, struct device *dev, size_t size, struct snd_dma_buffer *dmab); void snd_dma_free_pages(struct snd_dma_buffer *dmab); +int snd_dma_buffer_mmap(struct snd_dma_buffer *dmab, + struct vm_area_struct *area); dma_addr_t snd_sgbuf_get_addr(struct snd_dma_buffer *dmab, size_t offset); struct page *snd_sgbuf_get_page(struct snd_dma_buffer *dmab, size_t offset); |