ALSA: firewire: 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.
(*) 1fe7f397: ALSA: memalloc: Add vmalloc buffer allocation
                  support
    7e8edae3: ALSA: pcm: Handle special page mapping in the
                  default mmap handler

Link: https://lore.kernel.org/r/20191105151856.10785-11-tiwai@suse.deSigned-off-by: Takashi Iwai <tiwai@suse.de>

sound/firewire/bebob/bebob_pcm.c

@@ -214,8 +214,7 @@ static int pcm_hw_params(struct snd_pcm_substream *substream,
 	struct snd_bebob *bebob = substream->private_data;
 	int err;
 
-	err = snd_pcm_lib_alloc_vmalloc_buffer(substream,
-					       params_buffer_bytes(hw_params));
+	err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
 	if (err < 0)
 		return err;
 
@@ -248,7 +247,7 @@ static int pcm_hw_free(struct snd_pcm_substream *substream)
 
 	mutex_unlock(&bebob->mutex);
 
-	return snd_pcm_lib_free_vmalloc_buffer(substream);
+	return snd_pcm_lib_free_pages(substream);
 }
 
 static int
@@ -354,7 +353,6 @@ int snd_bebob_create_pcm_devices(struct snd_bebob *bebob)
 		.trigger	= pcm_capture_trigger,
 		.pointer	= pcm_capture_pointer,
 		.ack		= pcm_capture_ack,
-		.page		= snd_pcm_lib_get_vmalloc_page,
 	};
 	static const struct snd_pcm_ops playback_ops = {
 		.open		= pcm_open,
@@ -366,7 +364,6 @@ int snd_bebob_create_pcm_devices(struct snd_bebob *bebob)
 		.trigger	= pcm_playback_trigger,
 		.pointer	= pcm_playback_pointer,
 		.ack		= pcm_playback_ack,
-		.page		= snd_pcm_lib_get_vmalloc_page,
 	};
 	struct snd_pcm *pcm;
 	int err;
@@ -380,6 +377,8 @@ int snd_bebob_create_pcm_devices(struct snd_bebob *bebob)
 		 "%s PCM", bebob->card->shortname);
 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &playback_ops);
 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &capture_ops);
+	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_VMALLOC,
+					      NULL, 0, 0);
 end:
 	return err;
 }

sound/firewire/dice/dice-pcm.c

@@ -266,8 +266,7 @@ static int pcm_hw_params(struct snd_pcm_substream *substream,
 	struct snd_dice *dice = substream->private_data;
 	int err;
 
-	err = snd_pcm_lib_alloc_vmalloc_buffer(substream,
-					       params_buffer_bytes(hw_params));
+	err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
 	if (err < 0)
 		return err;
 
@@ -305,7 +304,7 @@ static int pcm_hw_free(struct snd_pcm_substream *substream)
 
 	mutex_unlock(&dice->mutex);
 
-	return snd_pcm_lib_free_vmalloc_buffer(substream);
+	return snd_pcm_lib_free_pages(substream);
 }
 
 static int capture_prepare(struct snd_pcm_substream *substream)
@@ -417,7 +416,6 @@ int snd_dice_create_pcm(struct snd_dice *dice)
 		.trigger   = capture_trigger,
 		.pointer   = capture_pointer,
 		.ack       = capture_ack,
-		.page      = snd_pcm_lib_get_vmalloc_page,
 	};
 	static const struct snd_pcm_ops playback_ops = {
 		.open      = pcm_open,
@@ -429,7 +427,6 @@ int snd_dice_create_pcm(struct snd_dice *dice)
 		.trigger   = playback_trigger,
 		.pointer   = playback_pointer,
 		.ack       = playback_ack,
-		.page      = snd_pcm_lib_get_vmalloc_page,
 	};
 	struct snd_pcm *pcm;
 	unsigned int capture, playback;
@@ -459,6 +456,10 @@ int snd_dice_create_pcm(struct snd_dice *dice)
 		if (playback > 0)
 			snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK,
 					&playback_ops);
+
+		snd_pcm_lib_preallocate_pages_for_all(pcm,
+						      SNDRV_DMA_TYPE_VMALLOC,
+						      NULL, 0, 0);
 	}
 
 	return 0;

sound/firewire/digi00x/digi00x-pcm.c

@@ -190,8 +190,7 @@ static int pcm_hw_params(struct snd_pcm_substream *substream,
 	struct snd_dg00x *dg00x = substream->private_data;
 	int err;
 
-	err = snd_pcm_lib_alloc_vmalloc_buffer(substream,
-					       params_buffer_bytes(hw_params));
+	err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
 	if (err < 0)
 		return err;
 
@@ -224,7 +223,7 @@ static int pcm_hw_free(struct snd_pcm_substream *substream)
 
 	mutex_unlock(&dg00x->mutex);
 
-	return snd_pcm_lib_free_vmalloc_buffer(substream);
+	return snd_pcm_lib_free_pages(substream);
 }
 
 static int pcm_capture_prepare(struct snd_pcm_substream *substream)
@@ -337,7 +336,6 @@ int snd_dg00x_create_pcm_devices(struct snd_dg00x *dg00x)
 		.trigger	= pcm_capture_trigger,
 		.pointer	= pcm_capture_pointer,
 		.ack		= pcm_capture_ack,
-		.page		= snd_pcm_lib_get_vmalloc_page,
 	};
 	static const struct snd_pcm_ops playback_ops = {
 		.open		= pcm_open,
@@ -349,7 +347,6 @@ int snd_dg00x_create_pcm_devices(struct snd_dg00x *dg00x)
 		.trigger	= pcm_playback_trigger,
 		.pointer	= pcm_playback_pointer,
 		.ack		= pcm_playback_ack,
-		.page		= snd_pcm_lib_get_vmalloc_page,
 	};
 	struct snd_pcm *pcm;
 	int err;
@@ -363,6 +360,8 @@ int snd_dg00x_create_pcm_devices(struct snd_dg00x *dg00x)
 		 "%s PCM", dg00x->card->shortname);
 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &playback_ops);
 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &capture_ops);
+	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_VMALLOC,
+					      NULL, 0, 0);
 
 	return 0;
 }

sound/firewire/fireface/ff-pcm.c

@@ -230,8 +230,7 @@ static int pcm_hw_params(struct snd_pcm_substream *substream,
 	struct snd_ff *ff = substream->private_data;
 	int err;
 
-	err = snd_pcm_lib_alloc_vmalloc_buffer(substream,
-					       params_buffer_bytes(hw_params));
+	err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
 	if (err < 0)
 		return err;
 
@@ -264,7 +263,7 @@ static int pcm_hw_free(struct snd_pcm_substream *substream)
 
 	mutex_unlock(&ff->mutex);
 
-	return snd_pcm_lib_free_vmalloc_buffer(substream);
+	return snd_pcm_lib_free_pages(substream);
 }
 
 static int pcm_capture_prepare(struct snd_pcm_substream *substream)
@@ -377,7 +376,6 @@ int snd_ff_create_pcm_devices(struct snd_ff *ff)
 		.trigger	= pcm_capture_trigger,
 		.pointer	= pcm_capture_pointer,
 		.ack		= pcm_capture_ack,
-		.page		= snd_pcm_lib_get_vmalloc_page,
 	};
 	static const struct snd_pcm_ops pcm_playback_ops = {
 		.open		= pcm_open,
@@ -389,7 +387,6 @@ int snd_ff_create_pcm_devices(struct snd_ff *ff)
 		.trigger	= pcm_playback_trigger,
 		.pointer	= pcm_playback_pointer,
 		.ack		= pcm_playback_ack,
-		.page		= snd_pcm_lib_get_vmalloc_page,
 	};
 	struct snd_pcm *pcm;
 	int err;
@@ -403,6 +400,8 @@ int snd_ff_create_pcm_devices(struct snd_ff *ff)
 		 "%s PCM", ff->card->shortname);
 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &pcm_playback_ops);
 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &pcm_capture_ops);
+	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_VMALLOC,
+					      NULL, 0, 0);
 
 	return 0;
 }

sound/firewire/fireworks/fireworks_pcm.c

@@ -250,8 +250,7 @@ static int pcm_hw_params(struct snd_pcm_substream *substream,
 	struct snd_efw *efw = substream->private_data;
 	int err;
 
-	err = snd_pcm_lib_alloc_vmalloc_buffer(substream,
-					       params_buffer_bytes(hw_params));
+	err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
 	if (err < 0)
 		return err;
 
@@ -284,7 +283,7 @@ static int pcm_hw_free(struct snd_pcm_substream *substream)
 
 	mutex_unlock(&efw->mutex);
 
-	return snd_pcm_lib_free_vmalloc_buffer(substream);
+	return snd_pcm_lib_free_pages(substream);
 }
 
 static int pcm_capture_prepare(struct snd_pcm_substream *substream)
@@ -384,7 +383,6 @@ int snd_efw_create_pcm_devices(struct snd_efw *efw)
 		.trigger	= pcm_capture_trigger,
 		.pointer	= pcm_capture_pointer,
 		.ack		= pcm_capture_ack,
-		.page		= snd_pcm_lib_get_vmalloc_page,
 	};
 	static const struct snd_pcm_ops playback_ops = {
 		.open		= pcm_open,
@@ -396,7 +394,6 @@ int snd_efw_create_pcm_devices(struct snd_efw *efw)
 		.trigger	= pcm_playback_trigger,
 		.pointer	= pcm_playback_pointer,
 		.ack		= pcm_playback_ack,
-		.page		= snd_pcm_lib_get_vmalloc_page,
 	};
 	struct snd_pcm *pcm;
 	int err;
@@ -409,6 +406,8 @@ int snd_efw_create_pcm_devices(struct snd_efw *efw)
 	snprintf(pcm->name, sizeof(pcm->name), "%s PCM", efw->card->shortname);
 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &playback_ops);
 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &capture_ops);
+	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_VMALLOC,
+					      NULL, 0, 0);
 end:
 	return err;
 }

sound/firewire/isight.c

@@ -288,8 +288,7 @@ static int isight_hw_params(struct snd_pcm_substream *substream,
 	struct isight *isight = substream->private_data;
 	int err;
 
-	err = snd_pcm_lib_alloc_vmalloc_buffer(substream,
-					       params_buffer_bytes(hw_params));
+	err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
 	if (err < 0)
 		return err;
 
@@ -337,7 +336,7 @@ static int isight_hw_free(struct snd_pcm_substream *substream)
 	isight_stop_streaming(isight);
 	mutex_unlock(&isight->mutex);
 
-	return snd_pcm_lib_free_vmalloc_buffer(substream);
+	return snd_pcm_lib_free_pages(substream);
 }
 
 static int isight_start_streaming(struct isight *isight)
@@ -453,7 +452,6 @@ static int isight_create_pcm(struct isight *isight)
 		.prepare   = isight_prepare,
 		.trigger   = isight_trigger,
 		.pointer   = isight_pointer,
-		.page      = snd_pcm_lib_get_vmalloc_page,
 	};
 	struct snd_pcm *pcm;
 	int err;
@@ -465,6 +463,8 @@ static int isight_create_pcm(struct isight *isight)
 	strcpy(pcm->name, "iSight");
 	isight->pcm = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream;
 	isight->pcm->ops = &ops;
+	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_VMALLOC,
+					      NULL, 0, 0);
 
 	return 0;
 }

sound/firewire/motu/motu-pcm.c

@@ -218,8 +218,7 @@ static int pcm_hw_params(struct snd_pcm_substream *substream,
 	struct snd_motu *motu = substream->private_data;
 	int err;
 
-	err = snd_pcm_lib_alloc_vmalloc_buffer(substream,
-					       params_buffer_bytes(hw_params));
+	err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
 	if (err < 0)
 		return err;
 
@@ -252,7 +251,7 @@ static int pcm_hw_free(struct snd_pcm_substream *substream)
 
 	mutex_unlock(&motu->mutex);
 
-	return snd_pcm_lib_free_vmalloc_buffer(substream);
+	return snd_pcm_lib_free_pages(substream);
 }
 
 static int capture_prepare(struct snd_pcm_substream *substream)
@@ -356,7 +355,6 @@ int snd_motu_create_pcm_devices(struct snd_motu *motu)
 		.trigger   = capture_trigger,
 		.pointer   = capture_pointer,
 		.ack       = capture_ack,
-		.page      = snd_pcm_lib_get_vmalloc_page,
 	};
 	static const struct snd_pcm_ops playback_ops = {
 		.open      = pcm_open,
@@ -368,7 +366,6 @@ int snd_motu_create_pcm_devices(struct snd_motu *motu)
 		.trigger   = playback_trigger,
 		.pointer   = playback_pointer,
 		.ack       = playback_ack,
-		.page      = snd_pcm_lib_get_vmalloc_page,
 	};
 	struct snd_pcm *pcm;
 	int err;
@@ -381,6 +378,8 @@ int snd_motu_create_pcm_devices(struct snd_motu *motu)
 
 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &capture_ops);
 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &playback_ops);
+	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_VMALLOC,
+					      NULL, 0, 0);
 
 	return 0;
 }

sound/firewire/oxfw/oxfw-pcm.c

@@ -239,8 +239,7 @@ static int pcm_capture_hw_params(struct snd_pcm_substream *substream,
 	struct snd_oxfw *oxfw = substream->private_data;
 	int err;
 
-	err = snd_pcm_lib_alloc_vmalloc_buffer(substream,
-					       params_buffer_bytes(hw_params));
+	err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
 	if (err < 0)
 		return err;
 
@@ -267,8 +266,7 @@ static int pcm_playback_hw_params(struct snd_pcm_substream *substream,
 	struct snd_oxfw *oxfw = substream->private_data;
 	int err;
 
-	err = snd_pcm_lib_alloc_vmalloc_buffer(substream,
-					       params_buffer_bytes(hw_params));
+	err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
 	if (err < 0)
 		return err;
 
@@ -303,7 +301,7 @@ static int pcm_capture_hw_free(struct snd_pcm_substream *substream)
 
 	mutex_unlock(&oxfw->mutex);
 
-	return snd_pcm_lib_free_vmalloc_buffer(substream);
+	return snd_pcm_lib_free_pages(substream);
 }
 static int pcm_playback_hw_free(struct snd_pcm_substream *substream)
 {
@@ -318,7 +316,7 @@ static int pcm_playback_hw_free(struct snd_pcm_substream *substream)
 
 	mutex_unlock(&oxfw->mutex);
 
-	return snd_pcm_lib_free_vmalloc_buffer(substream);
+	return snd_pcm_lib_free_pages(substream);
 }
 
 static int pcm_capture_prepare(struct snd_pcm_substream *substream)
@@ -428,7 +426,6 @@ int snd_oxfw_create_pcm(struct snd_oxfw *oxfw)
 		.trigger   = pcm_capture_trigger,
 		.pointer   = pcm_capture_pointer,
 		.ack       = pcm_capture_ack,
-		.page      = snd_pcm_lib_get_vmalloc_page,
 	};
 	static const struct snd_pcm_ops playback_ops = {
 		.open      = pcm_open,
@@ -440,7 +437,6 @@ int snd_oxfw_create_pcm(struct snd_oxfw *oxfw)
 		.trigger   = pcm_playback_trigger,
 		.pointer   = pcm_playback_pointer,
 		.ack       = pcm_playback_ack,
-		.page      = snd_pcm_lib_get_vmalloc_page,
 	};
 	struct snd_pcm *pcm;
 	unsigned int cap = 0;
@@ -458,6 +454,8 @@ int snd_oxfw_create_pcm(struct snd_oxfw *oxfw)
 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &playback_ops);
 	if (cap > 0)
 		snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &capture_ops);
+	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_VMALLOC,
+					      NULL, 0, 0);
 
 	return 0;
 }

sound/firewire/tascam/tascam-pcm.c

@@ -119,8 +119,7 @@ static int pcm_hw_params(struct snd_pcm_substream *substream,
 	struct snd_tscm *tscm = substream->private_data;
 	int err;
 
-	err = snd_pcm_lib_alloc_vmalloc_buffer(substream,
-					       params_buffer_bytes(hw_params));
+	err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
 	if (err < 0)
 		return err;
 
@@ -153,7 +152,7 @@ static int pcm_hw_free(struct snd_pcm_substream *substream)
 
 	mutex_unlock(&tscm->mutex);
 
-	return snd_pcm_lib_free_vmalloc_buffer(substream);
+	return snd_pcm_lib_free_pages(substream);
 }
 
 static int pcm_capture_prepare(struct snd_pcm_substream *substream)
@@ -266,7 +265,6 @@ int snd_tscm_create_pcm_devices(struct snd_tscm *tscm)
 		.trigger	= pcm_capture_trigger,
 		.pointer	= pcm_capture_pointer,
 		.ack		= pcm_capture_ack,
-		.page		= snd_pcm_lib_get_vmalloc_page,
 	};
 	static const struct snd_pcm_ops playback_ops = {
 		.open		= pcm_open,
@@ -278,7 +276,6 @@ int snd_tscm_create_pcm_devices(struct snd_tscm *tscm)
 		.trigger	= pcm_playback_trigger,
 		.pointer	= pcm_playback_pointer,
 		.ack		= pcm_playback_ack,
-		.page		= snd_pcm_lib_get_vmalloc_page,
 	};
 	struct snd_pcm *pcm;
 	int err;
@@ -292,6 +289,8 @@ int snd_tscm_create_pcm_devices(struct snd_tscm *tscm)
 		 "%s PCM", tscm->card->shortname);
 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &playback_ops);
 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &capture_ops);
+	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_VMALLOC,
+					      NULL, 0, 0);
 
 	return 0;
 }