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| author | Takashi Iwai <tiwai@suse.de> | 2021-10-17 09:48:59 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2021-10-18 13:32:13 +0200 |
| commit | 2d9ea39917a4e4293bc2caea902c7059a330b611 (patch) | |
| tree | 07b9ee3a8103a1f1f0872c63caac39321cbe5f13 /sound/core/Makefile | |
| parent | 73325f60e2ed28f04032d43c2828b73776cfefd0 (diff) | |
| download | linux-2d9ea39917a4e4293bc2caea902c7059a330b611.tar.bz2 | |
ALSA: memalloc: Convert x86 SG-buffer handling with non-contiguous type
We've had an x86-specific SG-buffer handling code, but now it can be
merged gracefully with the standard non-contiguous DMA pages.
After the migration, SNDRV_DMA_TYPE_DMA_SG becomes identical with
SNDRV_DMA_TYPE_NONCONTIG on x86, while others still fall back to
SNDRV_DMA_TYPE_DEV.
The remaining problem is about the SG-buffer with WC pages: the DMA
core stuff on x86 doesn't treat it well, so we still need some special
handling to manipulate the page attribute manually. The mmap handler
for SNDRV_DMA_TYPE_DEV_SG_WC still returns -ENOENT intentionally for
the fallback to the default handler.
Link: https://lore.kernel.org/r/20211017074859.24112-4-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/core/Makefile')
| -rw-r--r-- | sound/core/Makefile | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/sound/core/Makefile b/sound/core/Makefile index 79e1407cd0de..350d704ced98 100644 --- a/sound/core/Makefile +++ b/sound/core/Makefile @@ -19,7 +19,6 @@ snd-$(CONFIG_SND_JACK) += ctljack.o jack.o snd-pcm-y := pcm.o pcm_native.o pcm_lib.o pcm_misc.o \ pcm_memory.o memalloc.o snd-pcm-$(CONFIG_SND_PCM_TIMER) += pcm_timer.o -snd-pcm-$(CONFIG_SND_DMA_SGBUF) += sgbuf.o snd-pcm-$(CONFIG_SND_PCM_ELD) += pcm_drm_eld.o snd-pcm-$(CONFIG_SND_PCM_IEC958) += pcm_iec958.o |