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authorTakashi Iwai <tiwai@suse.de>2021-06-09 19:25:49 +0300
committerTakashi Iwai <tiwai@suse.de>2021-06-10 11:15:21 +0300
commit37af81c5998f4b0f23fb452cffa4b8a1c00ce95b (patch)
tree1def6906c07dfff4d6ddde09cbaaaa3000af693d /include/sound/pcm.h
parent84a0374051c1582ed9ace6cd63cdbfb15ed4b797 (diff)
downloadlinux-37af81c5998f4b0f23fb452cffa4b8a1c00ce95b.tar.xz
ALSA: core: Abstract memory alloc helpers
This patch introduces the ops table to each memory allocation type (SNDRV_DMA_TYPE_XXX) and abstract the handling for the better code management. Then we get separate the page allocation, release and other tasks for each type, especially for the SG buffer. Each buffer type has now callbacks in the struct snd_malloc_ops, and the common helper functions call those ops accordingly. The former inline code that is specific to SG-buffer is moved into the local sgbuf.c, and we can simplify the PCM code without details of memory handling. Link: https://lore.kernel.org/r/20210609162551.7842-4-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'include/sound/pcm.h')
-rw-r--r--include/sound/pcm.h8
1 files changed, 0 insertions, 8 deletions
diff --git a/include/sound/pcm.h b/include/sound/pcm.h
index c4f418c511e5..938f36050a5e 100644
--- a/include/sound/pcm.h
+++ b/include/sound/pcm.h
@@ -1254,14 +1254,6 @@ static inline int snd_pcm_lib_alloc_vmalloc_32_buffer
#define snd_pcm_get_dma_buf(substream) ((substream)->runtime->dma_buffer_p)
-#ifdef CONFIG_SND_DMA_SGBUF
-/*
- * SG-buffer handling
- */
-#define snd_pcm_substream_sgbuf(substream) \
- snd_pcm_get_dma_buf(substream)->private_data
-#endif /* SND_DMA_SGBUF */
-
/**
* snd_pcm_sgbuf_get_addr - Get the DMA address at the corresponding offset
* @substream: PCM substream