[alsa-devel] Applied "ASoC: SOF: Use managed buffer allocation" to the asoc tree

[Mark Brown]

The patch

   ASoC: SOF: Use managed buffer allocation

has been applied to the asoc tree at

   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-5.6

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.  

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark

>From 57e960f0020ec46db277426762ba5ffe77e03e3c Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai at suse.de>
Date: Wed, 11 Dec 2019 18:20:19 +0100
Subject: [PATCH] ASoC: SOF: Use managed buffer allocation

Clean up the drivers with the new managed buffer allocation API.
The superfluous snd_pcm_lib_malloc_pages() and
snd_pcm_lib_free_pages() calls are dropped.

Cc: Pierre-Louis Bossart <pierre-louis.bossart at linux.intel.com>
Cc: Ranjani Sridharan <ranjani.sridharan at linux.intel.com>
Signed-off-by: Takashi Iwai <tiwai at suse.de>
Link: https://lore.kernel.org/r/20191211172019.23206-2-tiwai@suse.de
Signed-off-by: Mark Brown <broonie at kernel.org>
---
 sound/soc/sof/pcm.c | 34 ++++++++++------------------------
 1 file changed, 10 insertions(+), 24 deletions(-)

diff --git a/sound/soc/sof/pcm.c b/sound/soc/sof/pcm.c
index 67ba317942d3..86829e5bd62d 100644
--- a/sound/soc/sof/pcm.c
+++ b/sound/soc/sof/pcm.c
@@ -118,20 +118,8 @@ static int sof_pcm_hw_params(struct snd_soc_component *component,
 
 	memset(&pcm, 0, sizeof(pcm));
 
-	/* allocate audio buffer pages */
-	ret = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(params));
-	if (ret < 0) {
-		dev_err(component->dev, "error: could not allocate %d bytes for PCM %d\n",
-			params_buffer_bytes(params), spcm->pcm.pcm_id);
-		return ret;
-	}
-	if (ret) {
-		/*
-		 * ret == 1 means the buffer is changed
-		 * create compressed page table for audio firmware
-		 * ret == 0 means the buffer is not changed
-		 * so no need to regenerate the page table
-		 */
+	/* create compressed page table for audio firmware */
+	if (runtime->buffer_changed) {
 		ret = create_page_table(component, substream, runtime->dma_area,
 					runtime->dma_bytes);
 		if (ret < 0)
@@ -259,8 +247,6 @@ static int sof_pcm_hw_free(struct snd_soc_component *component,
 			err = ret;
 	}
 
-	snd_pcm_lib_free_pages(substream);
-
 	cancel_work_sync(&spcm->stream[substream->stream].period_elapsed_work);
 
 	ret = snd_sof_pcm_platform_hw_free(sdev, substream);
@@ -596,10 +582,10 @@ static int sof_pcm_new(struct snd_soc_component *component,
 		"spcm: allocate %s playback DMA buffer size 0x%x max 0x%x\n",
 		caps->name, caps->buffer_size_min, caps->buffer_size_max);
 
-	snd_pcm_lib_preallocate_pages(pcm->streams[stream].substream,
-				      SNDRV_DMA_TYPE_DEV_SG, sdev->dev,
-				      le32_to_cpu(caps->buffer_size_min),
-				      le32_to_cpu(caps->buffer_size_max));
+	snd_pcm_set_managed_buffer(pcm->streams[stream].substream,
+				   SNDRV_DMA_TYPE_DEV_SG, sdev->dev,
+				   le32_to_cpu(caps->buffer_size_min),
+				   le32_to_cpu(caps->buffer_size_max));
 capture:
 	stream = SNDRV_PCM_STREAM_CAPTURE;
 
@@ -614,10 +600,10 @@ static int sof_pcm_new(struct snd_soc_component *component,
 		"spcm: allocate %s capture DMA buffer size 0x%x max 0x%x\n",
 		caps->name, caps->buffer_size_min, caps->buffer_size_max);
 
-	snd_pcm_lib_preallocate_pages(pcm->streams[stream].substream,
-				      SNDRV_DMA_TYPE_DEV_SG, sdev->dev,
-				      le32_to_cpu(caps->buffer_size_min),
-				      le32_to_cpu(caps->buffer_size_max));
+	snd_pcm_set_managed_buffer(pcm->streams[stream].substream,
+				   SNDRV_DMA_TYPE_DEV_SG, sdev->dev,
+				   le32_to_cpu(caps->buffer_size_min),
+				   le32_to_cpu(caps->buffer_size_max));
 
 	return 0;
 }
-- 
2.20.1