git://ftp.safe.ca / safe / jmp / linux-2.6 / commit
? search:
summary | shortlog | log | commit | commitdiff | tree
(parent: 8e4a718) | patch
ALSA: Fix SG-buffer DMA with non-coherent architectures
authorTakashi Iwai <tiwai@suse.de>
Tue, 17 Jun 2008 14:39:06 +0000 (16:39 +0200)
committerTakashi Iwai <tiwai@suse.de>
Wed, 8 Jul 2009 12:20:20 +0000 (14:20 +0200)
commitcc6a8acdeee932f6911d8b236d2c7d6bcc4616f6
treeebaadf1a406cf073fd4ce59d5f1f20d499f9cde1tree | snapshot
parent8e4a718ff38d8539938ec3421935904c27e00c39commit | diff
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>
include/sound/memalloc.h diff | blob | history
include/sound/pcm.h diff | blob | history
sound/core/Kconfig diff | blob | history
sound/core/Makefile diff | blob | history
sound/core/memalloc.c diff | blob | history
sound/core/pcm_memory.c diff | blob | history
Full containers within linux kernel