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ALSA: pdaudiocf: Convert to the common vmalloc memalloc

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The recent change (*) in the ALSA memalloc core allows us to drop the
special vmalloc-specific allocation and page handling.  This patch
coverts to the common code.
(*) 1fe7f397cf: ALSA: memalloc: Add vmalloc buffer allocation
                  support
    7e8edae39f: ALSA: pcm: Handle special page mapping in the
                  default mmap handler

Since the driver requires the DMA32 allocation, it passes the
specially encoded device to snd_pcm_lib_preallocate_pages().

Link: https://lore.kernel.org/r/20191105151856.10785-17-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2019-11-05 16:18:48 +01:00
parent 748a76b215
commit d5dec270c0
1 changed files with 5 additions and 4 deletions
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9
sound/pcmcia/pdaudiocf/pdaudiocf_pcm.c
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@ -89,8 +89,7 @@ static int pdacf_pcm_trigger(struct snd_pcm_substream *subs, int cmd)
static int pdacf_pcm_hw_params(struct snd_pcm_substream *subs,
struct snd_pcm_hw_params *hw_params)
{
return snd_pcm_lib_alloc_vmalloc_32_buffer
(subs, params_buffer_bytes(hw_params));
return snd_pcm_lib_malloc_pages(subs, params_buffer_bytes(hw_params));
}
/*
@ -98,7 +97,7 @@ static int pdacf_pcm_hw_params(struct snd_pcm_substream *subs,
*/
static int pdacf_pcm_hw_free(struct snd_pcm_substream *subs)
{
return snd_pcm_lib_free_vmalloc_buffer(subs);
return snd_pcm_lib_free_pages(subs);
}
/*
@ -262,7 +261,6 @@ static const struct snd_pcm_ops pdacf_pcm_capture_ops = {
.prepare = pdacf_pcm_prepare,
.trigger = pdacf_pcm_trigger,
.pointer = pdacf_pcm_capture_pointer,
.page = snd_pcm_lib_get_vmalloc_page,
};
@ -279,6 +277,9 @@ int snd_pdacf_pcm_new(struct snd_pdacf *chip)
return err;
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &pdacf_pcm_capture_ops);
snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_VMALLOC,
snd_dma_continuous_data(GFP_KERNEL | GFP_DMA32),
0, 0);
pcm->private_data = chip;
pcm->info_flags = 0;