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| author | Takashi Iwai <tiwai@suse.de> | 2008-06-17 16:39:06 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2009-07-08 14:20:20 +0200 |
| commit | cc6a8acdeee932f6911d8b236d2c7d6bcc4616f6 (patch) | |
| tree | ebaadf1a406cf073fd4ce59d5f1f20d499f9cde1 /sound/core/Kconfig | |
| parent | 8e4a718ff38d8539938ec3421935904c27e00c39 (diff) | |
| download | linux-cc6a8acdeee932f6911d8b236d2c7d6bcc4616f6.tar.bz2 | |
ALSA: Fix SG-buffer DMA with non-coherent architectures
Using SG-buffers with dma_alloc_coherent() is often very inefficient
on non-coherent architectures because a tracking record could be
allocated in addition for each dma_alloc_coherent() call.
Instead, simply disable SG-buffers but just allocate normal continuous
buffers on non-supported (currently all but x86) architectures.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/core/Kconfig')
| -rw-r--r-- | sound/core/Kconfig | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/sound/core/Kconfig b/sound/core/Kconfig index 6061fb5f4e1c..c15682a2f9db 100644 --- a/sound/core/Kconfig +++ b/sound/core/Kconfig @@ -206,4 +206,8 @@ config SND_PCM_XRUN_DEBUG config SND_VMASTER bool +config SND_DMA_SGBUF + def_bool y + depends on X86 + source "sound/core/seq/Kconfig" |