From a202bd1ad86d59c07f24f0a201c5ade320b51e30 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Wed, 9 Jun 2021 18:25:50 +0200 Subject: 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 --- include/sound/memalloc.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include/sound') 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); -- cgit v1.2.3