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.
(*)
1fe7f397cfe2: ALSA: memalloc: Add vmalloc buffer allocation
support
7e8edae39fd1: ALSA: pcm: Handle special page mapping in the
default mmap handler
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20191108164528.998-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
pr_err("Requested number of channels not supported.\n");
return -EINVAL;
}
pr_err("Requested number of channels not supported.\n");
return -EINVAL;
}
- return snd_pcm_lib_alloc_vmalloc_buffer(substream,
- params_buffer_bytes(hw_params));
+ return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
*/
static int pcm_hw_free(struct snd_pcm_substream *substream)
{
*/
static int pcm_hw_free(struct snd_pcm_substream *substream)
{
- return snd_pcm_lib_free_vmalloc_buffer(substream);
+ return snd_pcm_lib_free_pages(substream);
.prepare = pcm_prepare,
.trigger = pcm_trigger,
.pointer = pcm_pointer,
.prepare = pcm_prepare,
.trigger = pcm_trigger,
.pointer = pcm_pointer,
- .page = snd_pcm_lib_get_vmalloc_page,
};
static int split_arg_list(char *buf, u16 *ch_num, char **sample_res)
};
static int split_arg_list(char *buf, u16 *ch_num, char **sample_res)
pcm->private_data = channel;
strscpy(pcm->name, device_name, sizeof(pcm->name));
snd_pcm_set_ops(pcm, direction, &pcm_ops);
pcm->private_data = channel;
strscpy(pcm->name, device_name, sizeof(pcm->name));
snd_pcm_set_ops(pcm, direction, &pcm_ops);
+ snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_VMALLOC,
+ NULL, 0, 0);