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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
arch ASoC: fsl-asoc-card: merge spdif support from imx-spdif.c 2024-07-08 16:09:38 +01:00
block blk-throttle: Fix incorrect display of io.max 2024-05-30 19:44:29 -06:00
certs kbuild: use $(src) instead of $(srctree)/$(src) for source directory 2024-05-10 04:34:52 +09:00
crypto This push fixes a bug in the new ecc P521 code as well as a buggy 2024-05-20 08:47:54 -07:00
Documentation ASoC: dt-bindings: cirrus,cs42xx8: Convert to dtschema 2024-07-12 00:18:37 +01:00
drivers firmware: cs_dsp: Some small coding improvements 2024-07-11 00:26:23 +01:00
fs Two small smb3 client fixes 2024-06-08 19:07:18 -07:00
include ALSA: ump: Transmit RPN/NRPN message at each MSB/LSB data reception 2024-07-31 15:08:18 +02:00
init Driver core changes for 6.10-rc1 2024-05-22 12:13:40 -07:00
io_uring io_uring: fix possible deadlock in io_register_iowq_max_workers() 2024-06-04 07:39:17 -06:00
ipc Mainly singleton patches, documented in their respective changelogs. 2024-05-19 14:02:03 -07:00
kernel Fix race between perf_event_free_task() and perf_event_release_kernel() 2024-06-08 09:26:59 -07:00
lib Including fixes from BPF and big collection of fixes for WiFi core 2024-06-06 09:55:27 -07:00
LICENSES LICENSES: Add the copyleft-next-0.3.1 license 2022-11-08 15:44:01 +01:00
mm mm: fix xyz_noprof functions calling profiled functions 2024-06-05 19:19:26 -07:00
net nfsd-6.10 fixes: 2024-06-07 15:07:57 -07:00
rust LoongArch changes for v6.10 2024-05-22 09:43:07 -07:00
samples tracing/treewide: Remove second parameter of __assign_str() 2024-05-22 20:14:47 -04:00
scripts ASoC: codecs: lpass: add support for v2.5 rx macro 2024-06-15 16:24:35 +01:00
security tomoyo: update project links 2024-06-03 22:43:11 +09:00
sound ALSA: hda: Conditionally use snooping for AMD HDMI 2024-07-31 19:05:58 +02:00
tools kselftest/alsa: Log the PCM ID in pcm-test 2024-07-18 16:48:44 +02:00
usr kbuild: use $(src) instead of $(srctree)/$(src) for source directory 2024-05-10 04:34:52 +09:00
virt The usual shower of singleton fixes and minor series all over MM, 2024-05-19 09:21:03 -07:00
.clang-format clang-format: Update with v6.7-rc4's for_each macro list 2023-12-08 23:54:38 +01:00
.cocciconfig
.editorconfig Add .editorconfig file for basic formatting 2023-12-28 16:22:47 +09:00
.get_maintainer.ignore Add Jeff Kirsher to .get_maintainer.ignore 2024-03-08 11:36:54 +00:00
.gitattributes .gitattributes: set diff driver for Rust source code files 2023-05-31 17:48:25 +02:00
.gitignore kbuild: create a list of all built DTB files 2024-02-19 18:20:39 +09:00
.mailmap mailmap: update entry for Kees Cook 2024-05-31 08:58:36 -07:00
.rustfmt.toml rust: add .rustfmt.toml 2022-09-28 09:02:20 +02:00
COPYING
CREDITS MAINTAINERS: Drop Gustavo Pimentel as PCI DWC Maintainer 2024-03-27 13:41:02 -05:00
Kbuild Kbuild updates for v6.1 2022-10-10 12:00:45 -07:00
Kconfig kbuild: ensure full rebuild when the compiler is updated 2020-05-12 13:28:33 +09:00
MAINTAINERS ASoC: Updates for for v6.11 2024-07-15 16:31:00 +02:00
Makefile Linux 6.10-rc3 2024-06-09 14:19:43 -07:00
README README: Fix spelling 2024-03-18 03:36:32 -06:00

README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.