Revert "ALSA: hda: Conditionally use snooping for AMD HDMI"

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commit 3f7f36a455 upstream.

This reverts commit 478689b599.

The fix seems leading to regressions for other systems.
Also, the way to check the presence of IOMMU via get_dma_ops() isn't
reliable and it's no longer applicable for 6.12.  After all, it's no
right fix, so let's revert it at first.

To be noted, the PCM buffer allocation has been changed to try the
continuous pages at first since 6.12, so the problem could be already
addressed without this hackish workaround.

Reported-by: Salvatore Bonaccorso <carnil@debian.org>
Closes: https://lore.kernel.org/ZvgCdYfKgwHpJXGE@eldamar.lan
Link: https://patch.msgid.link/20241002155948.4859-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

This commit is contained in:

Takashi Iwai 2024-10-02 17:59:39 +02:00 • committed by Greg Kroah-Hartman

parent 2c74d33dbf

commit b8c0aee7c2

2 changed files with 2 additions and 10 deletions

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2

sound/pci/hda/hda_controller.h

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10

sound/pci/hda/hda_intel.c

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