ALSA: aloop - Use vmalloc buffer
snd-aloop driver is virtual and has no need for allocating contiguous pages. It'll be more system-friendly to use vmalloc buffers. Tested-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
parent
49957f3966
commit
6b69a0e520
|
@ -575,7 +575,8 @@ static void loopback_runtime_free(struct snd_pcm_runtime *runtime)
|
|||
static int loopback_hw_params(struct snd_pcm_substream *substream,
|
||||
struct snd_pcm_hw_params *params)
|
||||
{
|
||||
return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(params));
|
||||
return snd_pcm_lib_alloc_vmalloc_buffer(substream,
|
||||
params_buffer_bytes(params));
|
||||
}
|
||||
|
||||
static int loopback_hw_free(struct snd_pcm_substream *substream)
|
||||
|
@ -587,7 +588,7 @@ static int loopback_hw_free(struct snd_pcm_substream *substream)
|
|||
mutex_lock(&dpcm->loopback->cable_lock);
|
||||
cable->valid &= ~(1 << substream->stream);
|
||||
mutex_unlock(&dpcm->loopback->cable_lock);
|
||||
return snd_pcm_lib_free_pages(substream);
|
||||
return snd_pcm_lib_free_vmalloc_buffer(substream);
|
||||
}
|
||||
|
||||
static unsigned int get_cable_index(struct snd_pcm_substream *substream)
|
||||
|
@ -740,6 +741,8 @@ static struct snd_pcm_ops loopback_playback_ops = {
|
|||
.prepare = loopback_prepare,
|
||||
.trigger = loopback_trigger,
|
||||
.pointer = loopback_pointer,
|
||||
.page = snd_pcm_lib_get_vmalloc_page,
|
||||
.mmap = snd_pcm_lib_mmap_vmalloc,
|
||||
};
|
||||
|
||||
static struct snd_pcm_ops loopback_capture_ops = {
|
||||
|
@ -751,6 +754,8 @@ static struct snd_pcm_ops loopback_capture_ops = {
|
|||
.prepare = loopback_prepare,
|
||||
.trigger = loopback_trigger,
|
||||
.pointer = loopback_pointer,
|
||||
.page = snd_pcm_lib_get_vmalloc_page,
|
||||
.mmap = snd_pcm_lib_mmap_vmalloc,
|
||||
};
|
||||
|
||||
static int __devinit loopback_pcm_new(struct loopback *loopback,
|
||||
|
@ -771,10 +776,6 @@ static int __devinit loopback_pcm_new(struct loopback *loopback,
|
|||
strcpy(pcm->name, "Loopback PCM");
|
||||
|
||||
loopback->pcm[device] = pcm;
|
||||
|
||||
snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_CONTINUOUS,
|
||||
snd_dma_continuous_data(GFP_KERNEL),
|
||||
0, 2 * 1024 * 1024);
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
|
Loading…
Reference in a new issue