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| author | Takashi Iwai <tiwai@suse.de> | 2008-07-30 15:13:34 +0200 |
|---|---|---|
| committer | Jaroslav Kysela <perex@perex.cz> | 2008-08-25 09:57:40 +0200 |
| commit | fc4abee8112ada7b1b66017f620d3de3954759f3 (patch) | |
| tree | c75b9e248960dc64502cd659f7206bf8b0510aa8 | |
| parent | 51e9f2e665bf2b6a01be275d64c336d942c59a66 (diff) | |
| download | op-kernel-dev-fc4abee8112ada7b1b66017f620d3de3954759f3.zip op-kernel-dev-fc4abee8112ada7b1b66017f620d3de3954759f3.tar.gz | |
ALSA: hda - check page continuity
Check the continuity of allocated pages to reduce the BDL size as much
as possible so that it can use more than 1MB buffers.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
| -rw-r--r-- | sound/pci/hda/hda_intel.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c index e4d038f..4f80248 100644 --- a/sound/pci/hda/hda_intel.c +++ b/sound/pci/hda/hda_intel.c @@ -1012,9 +1012,7 @@ static int setup_bdle(struct snd_pcm_substream *substream, bdl[0] = cpu_to_le32((u32)addr); bdl[1] = cpu_to_le32(upper_32_bits(addr)); /* program the size field of the BDL entry */ - chunk = PAGE_SIZE - (ofs % PAGE_SIZE); - if (size < chunk) - chunk = size; + chunk = snd_pcm_sgbuf_get_chunk_size(substream, ofs, size); bdl[2] = cpu_to_le32(chunk); /* program the IOC to enable interrupt * only when the whole fragment is processed @@ -1672,7 +1670,7 @@ static int __devinit create_codec_pcm(struct azx *chip, struct hda_codec *codec, snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &azx_pcm_ops); snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG, snd_dma_pci_data(chip->pci), - 1024 * 64, 1024 * 1024); + 1024 * 64, 32 * 1024 * 1024); chip->pcm[cpcm->device] = pcm; return 0; } |
