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ALSA: core: Move mmap handler into memalloc ops

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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>
This commit is contained in:
Takashi Iwai
2021-06-09 18:25:50 +02:00
parent 37af81c599
commit a202bd1ad8
4 changed files with 43 additions and 16 deletions
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1
sound/core/memalloc_local.h
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@@ -9,6 +9,7 @@ struct snd_malloc_ops {
struct page *(*get_page)(struct snd_dma_buffer *dmab, size_t offset);
unsigned int (*get_chunk_size)(struct snd_dma_buffer *dmab,
unsigned int ofs, unsigned int size);
int (*mmap)(struct snd_dma_buffer *dmab, struct vm_area_struct *area);
};
#ifdef CONFIG_SND_DMA_SGBUF