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478689b599
linux/sound/pci
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Takashi Iwai 478689b599 ALSA: hda: Conditionally use snooping for AMD HDMI 
The recent regression report revealed that the use of WC pages for AMD
HDMI device together with AMD IOMMU leads to unexpected truncation or
noises.  The issue seems triggered by the change in the kernel core
memory allocation that enables IOMMU driver to use always S/G
buffers.  Meanwhile, the use of WC pages has been a workaround for the
similar issue with standard pages in the past.  So, now we need to
apply the workaround conditionally, namely, only when IOMMU isn't in
place.

This patch modifies the workaround code to check the DMA ops at first
and apply the snoop-off only when needed.

Fixes: f5ff79fddf ("dma-mapping: remove CONFIG_DMA_REMAP")
Link: https://bugzilla.kernel.org/show_bug.cgi?id=219087
Link: https://patch.msgid.link/20240731170521.31714-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2024-07-31 19:05:58 +02:00
..
ac97 ALSA: ac97: More cleanup with snd_ctl_find_id_mixer() 2024-03-04 09:22:51 +01:00
ali5451 ALSA: pci: Use *-y instead of *-objs in Makefile 2024-05-08 18:17:37 +02:00
asihpi ALSA: pci: Use *-y instead of *-objs in Makefile 2024-05-08 18:17:37 +02:00
au88x0 ALSA: pci: Use *-y instead of *-objs in Makefile 2024-05-08 18:17:37 +02:00
aw2 ALSA: pci: Use *-y instead of *-objs in Makefile 2024-05-08 18:17:37 +02:00
ca0106 ALSA: pci: Use *-y instead of *-objs in Makefile 2024-05-08 18:17:37 +02:00
cs46xx ALSA: cs46xx: Simplify with snd_ctl_find_id_mixer() 2023-07-21 09:10:39 +02:00
cs5535audio ALSA: cs5535audio: Remove the redundant assignment 2022-11-07 09:16:31 +01:00
ctxfi ALSA: pci: Use *-y instead of *-objs in Makefile 2024-05-08 18:17:37 +02:00
echoaudio ALSA: pci: Use *-y instead of *-objs in Makefile 2024-05-08 18:17:37 +02:00
emu10k1 ALSA: pcm: optimize and clarify stream synchronization ID API 2024-07-02 09:53:21 +02:00
hda ALSA: hda: Conditionally use snooping for AMD HDMI 2024-07-31 19:05:58 +02:00
ice1712 ALSA: pci: Use *-y instead of *-objs in Makefile 2024-05-08 18:17:37 +02:00
korg1212 ALSA: pci: Use *-y instead of *-objs in Makefile 2024-05-08 18:17:37 +02:00
lola ALSA: lola: Bounds check loop iterator against streams array size 2022-05-21 08:48:57 +02:00
lx6464es ALSA: pci: Use *-y instead of *-objs in Makefile 2024-05-08 18:17:37 +02:00
mixart ALSA: pci: Use *-y instead of *-objs in Makefile 2024-05-08 18:17:37 +02:00
nm256 ALSA: pci: Use *-y instead of *-objs in Makefile 2024-05-08 18:17:37 +02:00
oxygen ALSA: pci: Use *-y instead of *-objs in Makefile 2024-05-08 18:17:37 +02:00
pcxhr ALSA: pci: Use *-y instead of *-objs in Makefile 2024-05-08 18:17:37 +02:00
riptide ALSA: pci: Use *-y instead of *-objs in Makefile 2024-05-08 18:17:37 +02:00
rme9652 ALSA: pci: Use *-y instead of *-objs in Makefile 2024-05-08 18:17:37 +02:00
trident ALSA: pci: Use *-y instead of *-objs in Makefile 2024-05-08 18:17:37 +02:00
vx222 ALSA: pci: Use *-y instead of *-objs in Makefile 2024-05-08 18:17:37 +02:00
ymfpci ALSA: pci: Use *-y instead of *-objs in Makefile 2024-05-08 18:17:37 +02:00
ad1889.c ALSA: ad1889: Fix the missing snd_card_free() call at probe error 2022-04-12 17:58:18 +02:00
ad1889.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
ak4531_codec.c ALSA: ak4531: Fix assignment in if condition 2021-06-09 17:29:49 +02:00
als300.c ALSA: als300: Replace with DEFINE_SIMPLE_DEV_PM_OPS() 2024-02-12 11:50:24 +01:00
als4000.c ALSA: als4000: Replace with DEFINE_SIMPLE_DEV_PM_OPS() 2024-02-12 11:50:24 +01:00
atiixp_modem.c ALSA: atiixp: Replace with DEFINE_SIMPLE_DEV_PM_OPS() 2024-02-12 11:50:24 +01:00
atiixp.c ALSA: atiixp: Replace with DEFINE_SIMPLE_DEV_PM_OPS() 2024-02-12 11:50:24 +01:00
azt3328.c ALSA: azt3328: Simplify with DEFINE_SIMPLE_DEV_PM_OPS() 2024-02-12 11:50:25 +01:00
azt3328.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
bt87x.c ALSA: bt87x: Fix the missing snd_card_free() call at probe error 2022-04-12 17:58:36 +02:00
cmipci.c ALSA: cmipci: Simplify with DEFINE_SIMPLE_DEV_PM_OPS() 2024-02-12 11:50:25 +01:00
cs4281.c ALSA: cs4281: Simplify with DEFINE_SIMPLE_DEV_PM_OPS() 2024-02-12 11:50:25 +01:00
cs5530.c ALSA: cs5530: Allocate resources with device-managed APIs 2021-07-19 16:16:43 +02:00
ens1370.c ALSA: ens137x: Replace with DEFINE_SIMPLE_DEV_PM_OPS() 2024-02-12 11:50:24 +01:00
ens1371.c
es1938.c ALSA: es1938: Simplify with DEFINE_SIMPLE_DEV_PM_OPS() 2024-02-12 11:50:26 +01:00
es1968.c ALSA: es1968: Simplify with DEFINE_SIMPLE_DEV_PM_OPS() 2024-02-12 11:50:26 +01:00
fm801.c ALSA: fm801: Simplify with DEFINE_SIMPLE_DEV_PM_OPS() 2024-02-12 11:50:26 +01:00
intel8x0.c ALSA: intel8x0: Replace with DEFINE_SIMPLE_DEV_PM_OPS() 2024-02-12 11:50:24 +01:00
intel8x0m.c ALSA: intel8x0: Replace with DEFINE_SIMPLE_DEV_PM_OPS() 2024-02-12 11:50:24 +01:00
Kconfig ALSA: add HAS_IOPORT dependencies 2023-05-22 16:43:47 +02:00
maestro3.c ALSA: maestro3: Simplify with DEFINE_SIMPLE_DEV_PM_OPS() 2024-02-12 11:50:26 +01:00
Makefile ALSA: pci: Use *-y instead of *-objs in Makefile 2024-05-08 18:17:37 +02:00
rme32.c ALSA: rme32: Convert to generic PCM copy ops 2023-08-18 12:18:21 +02:00
rme96.c ALSA: rme96: Simplify with DEFINE_SIMPLE_DEV_PM_OPS() 2024-02-12 11:50:26 +01:00
sis7019.c ALSA: sis7019: Simplify with DEFINE_SIMPLE_DEV_PM_OPS() 2024-02-12 11:50:26 +01:00
sis7019.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 274 2019-06-05 17:30:30 +02:00
sonicvibes.c ALSA: sonicvibes: Fix the missing snd_card_free() call at probe error 2022-04-12 17:58:33 +02:00
via82xx_modem.c ALSA: via82xx: Simplify with DEFINE_SIMPLE_DEV_PM_OPS() 2024-02-12 11:50:26 +01:00
via82xx.c ALSA: via82xx: Simplify with DEFINE_SIMPLE_DEV_PM_OPS() 2024-02-12 11:50:26 +01:00