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Kai-Heng Feng 9b412c4aa3 iommu/amd: Disable IOMMU on Stoney Ridge systems 
[ Upstream commit 3dfee47b215e49788cfc80e474820ea2e948c031 ]

Serious screen flickering when Stoney Ridge outputs to a 4K monitor.

Use identity-mapping and PCI ATS doesn't help this issue.

According to Alex Deucher, IOMMU isn't enabled on Windows, so let's do
the same here to avoid screen flickering on 4K monitor.

Cc: Alex Deucher <alexander.deucher@amd.com>
Bug: https://gitlab.freedesktop.org/drm/amd/issues/961
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-03-12 13:00:14 +01:00
arch
s390: make 'install' not depend on vmlinux
2020-03-12 13:00:13 +01:00
block
block, bfq: do not insert oom queue into position tree
2020-03-12 13:00:08 +01:00
certs
PKCS#7: Refactor verify_pkcs7_signature()
2019-08-05 18:40:18 -04:00
crypto
crypto: rename sm3-256 to sm3 in hash_algo_name
2020-02-28 17:22:26 +01:00
Documentation
netfilter: nf_flowtable: fix documentation
2020-03-05 16:43:51 +01:00
drivers
iommu/amd: Disable IOMMU on Stoney Ridge systems
2020-03-12 13:00:14 +01:00
fs
xfs: clear kernel only flags in XFS_IOC_ATTRMULTI_BY_HANDLE
2020-03-05 16:43:51 +01:00
include
blktrace: Protect q->blk_trace with RCU
2020-03-05 16:43:52 +01:00
init
kbuild: remove header compile test
2020-03-05 16:43:47 +01:00
ipc
Revert "ipc,sem: remove uneeded sem_undo_list lock usage in exit_sem()"
2020-02-28 17:22:20 +01:00
kernel
blktrace: fix dereference after null check
2020-03-12 13:00:10 +01:00
lib
kbuild: move headers_check rule to usr/include/Makefile
2020-03-05 16:43:47 +01:00
LICENSES
LICENSES: Rename other to deprecated
2019-05-03 06:34:32 -06:00
mm
mm, thp: fix defrag setting if newline is not used
2020-03-05 16:43:51 +01:00
net
netfilter: nft_tunnel: no need to call htons() when dumping ports
2020-03-05 16:43:50 +01:00
samples
samples/bpf: Set -fno-stack-protector when building BPF programs
2020-02-24 08:36:36 +01:00
scripts
kbuild: move headers_check rule to usr/include/Makefile
2020-03-05 16:43:47 +01:00
security
efi: Only print errors about failing to get certs if EFI vars are found
2020-03-12 13:00:14 +01:00
sound
ALSA: hda: do not override bus codec_mask in link_get()
2020-03-12 13:00:10 +01:00
tools
selftests: forwarding: vxlan_bridge_1d: fix tos value
2020-03-12 13:00:12 +01:00
usr
kbuild: fix 'No such file or directory' warning when cleaning
2020-03-12 13:00:09 +01:00
virt
KVM: Check for a bad hva before dropping into the ghc slow path
2020-03-05 16:43:48 +01:00
.clang-format
clang-format: Update with the latest for_each macro list
2019-08-31 10:00:51 +02:00
.cocciconfig
…
.get_maintainer.ignore
Opt out of scripts/get_maintainer.pl
2019-05-16 10:53:40 -07:00
.gitattributes
.gitattributes: set git diff driver for C source code files
2016-10-07 18:46:30 -07:00
.gitignore
Modules updates for v5.4
2019-09-22 10:34:46 -07:00
.mailmap
ARM: SoC fixes
2019-11-10 13:41:59 -08:00
COPYING
COPYING: use the new text with points to the license files
2018-03-23 12:41:45 -06:00
CREDITS
MAINTAINERS: Remove Simon as Renesas SoC Co-Maintainer
2019-10-10 08:12:51 -07:00
Kbuild
kbuild: do not descend to ./Kbuild when cleaning
2019-08-21 21:03:58 +09:00
Kconfig
docs: kbuild: convert docs to ReST and rename to *.rst
2019-06-14 14:21:21 -06:00
MAINTAINERS
MAINTAINERS: Update drm/i915 bug filing URL
2020-02-28 17:22:19 +01:00
Makefile
Linux 5.4.24
2020-03-05 16:43:52 +01:00
README
Drop all 00-INDEX files from Documentation/
2018-09-09 15:08:58 -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 Restructured Text 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.
Description
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