From b315997d7c2295b2b32cb661a584208ab05ffaea Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Tue, 5 Nov 2019 16:18:40 +0100 Subject: ALSA: usb-audio: Convert to the common vmalloc memalloc 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 Also, since the SG-buffer-specific PCM ops becomes identical with the normal PCM ops, unify them again to the single ops, too. Link: https://lore.kernel.org/r/20191105151856.10785-9-tiwai@suse.de Signed-off-by: Takashi Iwai --- sound/usb/pcm.c | 50 ++++++++------------------------------------------ 1 file changed, 8 insertions(+), 42 deletions(-) (limited to 'sound/usb') diff --git a/sound/usb/pcm.c b/sound/usb/pcm.c index ff5ab24f3bd1..9c8930bb00c8 100644 --- a/sound/usb/pcm.c +++ b/sound/usb/pcm.c @@ -785,12 +785,8 @@ static int snd_usb_hw_params(struct snd_pcm_substream *substream, if (ret) return ret; - if (snd_usb_use_vmalloc) - ret = snd_pcm_lib_alloc_vmalloc_buffer(substream, - params_buffer_bytes(hw_params)); - else - ret = snd_pcm_lib_malloc_pages(substream, - params_buffer_bytes(hw_params)); + ret = snd_pcm_lib_malloc_pages(substream, + params_buffer_bytes(hw_params)); if (ret < 0) goto stop_pipeline; @@ -857,10 +853,7 @@ static int snd_usb_hw_free(struct snd_pcm_substream *substream) snd_usb_unlock_shutdown(subs->stream->chip); } - if (snd_usb_use_vmalloc) - return snd_pcm_lib_free_vmalloc_buffer(substream); - else - return snd_pcm_lib_free_pages(substream); + return snd_pcm_lib_free_pages(substream); } /* @@ -1781,7 +1774,6 @@ static const struct snd_pcm_ops snd_usb_playback_ops = { .prepare = snd_usb_pcm_prepare, .trigger = snd_usb_substream_playback_trigger, .pointer = snd_usb_pcm_pointer, - .page = snd_pcm_lib_get_vmalloc_page, }; static const struct snd_pcm_ops snd_usb_capture_ops = { @@ -1793,43 +1785,14 @@ static const struct snd_pcm_ops snd_usb_capture_ops = { .prepare = snd_usb_pcm_prepare, .trigger = snd_usb_substream_capture_trigger, .pointer = snd_usb_pcm_pointer, - .page = snd_pcm_lib_get_vmalloc_page, -}; - -static const struct snd_pcm_ops snd_usb_playback_dev_ops = { - .open = snd_usb_pcm_open, - .close = snd_usb_pcm_close, - .ioctl = snd_pcm_lib_ioctl, - .hw_params = snd_usb_hw_params, - .hw_free = snd_usb_hw_free, - .prepare = snd_usb_pcm_prepare, - .trigger = snd_usb_substream_playback_trigger, - .pointer = snd_usb_pcm_pointer, - .page = snd_pcm_sgbuf_ops_page, -}; - -static const struct snd_pcm_ops snd_usb_capture_dev_ops = { - .open = snd_usb_pcm_open, - .close = snd_usb_pcm_close, - .ioctl = snd_pcm_lib_ioctl, - .hw_params = snd_usb_hw_params, - .hw_free = snd_usb_hw_free, - .prepare = snd_usb_pcm_prepare, - .trigger = snd_usb_substream_capture_trigger, - .pointer = snd_usb_pcm_pointer, - .page = snd_pcm_sgbuf_ops_page, }; void snd_usb_set_pcm_ops(struct snd_pcm *pcm, int stream) { const struct snd_pcm_ops *ops; - if (snd_usb_use_vmalloc) - ops = stream == SNDRV_PCM_STREAM_PLAYBACK ? + ops = stream == SNDRV_PCM_STREAM_PLAYBACK ? &snd_usb_playback_ops : &snd_usb_capture_ops; - else - ops = stream == SNDRV_PCM_STREAM_PLAYBACK ? - &snd_usb_playback_dev_ops : &snd_usb_capture_dev_ops; snd_pcm_set_ops(pcm, stream, ops); } @@ -1839,7 +1802,10 @@ void snd_usb_preallocate_buffer(struct snd_usb_substream *subs) struct snd_pcm_substream *s = pcm->streams[subs->direction].substream; struct device *dev = subs->dev->bus->controller; - if (!snd_usb_use_vmalloc) + if (snd_usb_use_vmalloc) + snd_pcm_lib_preallocate_pages(s, SNDRV_DMA_TYPE_VMALLOC, + NULL, 0, 0); + else snd_pcm_lib_preallocate_pages(s, SNDRV_DMA_TYPE_DEV_SG, dev, 64*1024, 512*1024); } -- cgit