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authorTakashi Iwai <tiwai@suse.de>2014-01-08 16:12:25 +0100
committerTakashi Iwai <tiwai@suse.de>2014-01-09 07:32:10 +0100
commit47d98c026ef9a9888c36f3c4f26b81f548a0ca86 (patch)
tree11601d8b6644c5a2dd75469978151d51ef6fb7e9 /sound/pci
parentd7b135410e1b2f5ad64e56df09d133a23aa9fbcb (diff)
ALSA: Remove memory reservation code from memalloc helper
Nowadays we have CMA for obtaining the contiguous memory pages efficiently. Let's kill the old kludge for reserving the memory pages for large buffers. It was rarely useful (only for preserving pages among module reloading or a little help by an early boot scripting), used only by a couple of drivers, and yet it gives too much ugliness than its benefit. Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci')
-rw-r--r--sound/pci/es1968.c28
-rw-r--r--sound/pci/rme9652/hdsp.c10
-rw-r--r--sound/pci/rme9652/rme9652.c10
3 files changed, 17 insertions, 31 deletions
diff --git a/sound/pci/es1968.c b/sound/pci/es1968.c
index b0e3d92c4656..772cc36f951d 100644
--- a/sound/pci/es1968.c
+++ b/sound/pci/es1968.c
@@ -1422,7 +1422,7 @@ static void snd_es1968_free_dmabuf(struct es1968 *chip)
if (! chip->dma.area)
return;
- snd_dma_reserve_buf(&chip->dma, snd_dma_pci_buf_id(chip->pci));
+ snd_dma_free_pages(&chip->dma);
while ((p = chip->buf_list.next) != &chip->buf_list) {
struct esm_memory *chunk = list_entry(p, struct esm_memory, list);
list_del(p);
@@ -1438,20 +1438,18 @@ snd_es1968_init_dmabuf(struct es1968 *chip)
chip->dma.dev.type = SNDRV_DMA_TYPE_DEV;
chip->dma.dev.dev = snd_dma_pci_data(chip->pci);
- if (! snd_dma_get_reserved_buf(&chip->dma, snd_dma_pci_buf_id(chip->pci))) {
- err = snd_dma_alloc_pages_fallback(SNDRV_DMA_TYPE_DEV,
- snd_dma_pci_data(chip->pci),
- chip->total_bufsize, &chip->dma);
- if (err < 0 || ! chip->dma.area) {
- snd_printk(KERN_ERR "es1968: can't allocate dma pages for size %d\n",
- chip->total_bufsize);
- return -ENOMEM;
- }
- if ((chip->dma.addr + chip->dma.bytes - 1) & ~((1 << 28) - 1)) {
- snd_dma_free_pages(&chip->dma);
- snd_printk(KERN_ERR "es1968: DMA buffer beyond 256MB.\n");
- return -ENOMEM;
- }
+ err = snd_dma_alloc_pages_fallback(SNDRV_DMA_TYPE_DEV,
+ snd_dma_pci_data(chip->pci),
+ chip->total_bufsize, &chip->dma);
+ if (err < 0 || ! chip->dma.area) {
+ snd_printk(KERN_ERR "es1968: can't allocate dma pages for size %d\n",
+ chip->total_bufsize);
+ return -ENOMEM;
+ }
+ if ((chip->dma.addr + chip->dma.bytes - 1) & ~((1 << 28) - 1)) {
+ snd_dma_free_pages(&chip->dma);
+ snd_printk(KERN_ERR "es1968: DMA buffer beyond 256MB.\n");
+ return -ENOMEM;
}
INIT_LIST_HEAD(&chip->buf_list);
diff --git a/sound/pci/rme9652/hdsp.c b/sound/pci/rme9652/hdsp.c
index f59a321a6d6a..bd90c80bb494 100644
--- a/sound/pci/rme9652/hdsp.c
+++ b/sound/pci/rme9652/hdsp.c
@@ -584,10 +584,6 @@ static int snd_hammerfall_get_buffer(struct pci_dev *pci, struct snd_dma_buffer
{
dmab->dev.type = SNDRV_DMA_TYPE_DEV;
dmab->dev.dev = snd_dma_pci_data(pci);
- if (snd_dma_get_reserved_buf(dmab, snd_dma_pci_buf_id(pci))) {
- if (dmab->bytes >= size)
- return 0;
- }
if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
size, dmab) < 0)
return -ENOMEM;
@@ -596,10 +592,8 @@ static int snd_hammerfall_get_buffer(struct pci_dev *pci, struct snd_dma_buffer
static void snd_hammerfall_free_buffer(struct snd_dma_buffer *dmab, struct pci_dev *pci)
{
- if (dmab->area) {
- dmab->dev.dev = NULL; /* make it anonymous */
- snd_dma_reserve_buf(dmab, snd_dma_pci_buf_id(pci));
- }
+ if (dmab->area)
+ snd_dma_free_pages(dmab);
}
diff --git a/sound/pci/rme9652/rme9652.c b/sound/pci/rme9652/rme9652.c
index 3717f2dd30be..1503ee3585fd 100644
--- a/sound/pci/rme9652/rme9652.c
+++ b/sound/pci/rme9652/rme9652.c
@@ -294,10 +294,6 @@ static int snd_hammerfall_get_buffer(struct pci_dev *pci, struct snd_dma_buffer
{
dmab->dev.type = SNDRV_DMA_TYPE_DEV;
dmab->dev.dev = snd_dma_pci_data(pci);
- if (snd_dma_get_reserved_buf(dmab, snd_dma_pci_buf_id(pci))) {
- if (dmab->bytes >= size)
- return 0;
- }
if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci),
size, dmab) < 0)
return -ENOMEM;
@@ -306,10 +302,8 @@ static int snd_hammerfall_get_buffer(struct pci_dev *pci, struct snd_dma_buffer
static void snd_hammerfall_free_buffer(struct snd_dma_buffer *dmab, struct pci_dev *pci)
{
- if (dmab->area) {
- dmab->dev.dev = NULL; /* make it anonymous */
- snd_dma_reserve_buf(dmab, snd_dma_pci_buf_id(pci));
- }
+ if (dmab->area)
+ snd_dma_free_pages(dmab);
}