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Koba Ko b3dc549986 drm/amdgpu: Disable PCIE_DPM on Intel RKL Platform 
Due to high latency in PCIE clock switching on RKL platforms,
switching the PCIE clock dynamically at runtime can lead to HDMI/DP
audio problems. On newer asics this is handled in the SMU firmware.
For SMU7-based asics, disable PCIE clock switching to avoid the issue.

AMD provide a parameter to disable PICE_DPM.

modprobe amdgpu ppfeaturemask=0xfff7bffb

It's better to contorl PCIE_DPM in amd gpu driver,
switch PCI_DPM by determining intel RKL platform for SMU7-based asics.

Fixes: 1a31474cdb ("drm/amd/pm: workaround for audio noise issue")
Ref: https://lists.freedesktop.org/archives/amd-gfx/2021-August/067413.html
Signed-off-by: Koba Ko <koba.ko@canonical.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2021-08-30 15:09:27 -04:00
arch Bus: Make remove callback return void tag 2021-08-11 08:47:08 +10:00
block
certs
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Documentation Merge tag 'drm-msm-next-2021-08-12' of https://gitlab.freedesktop.org/drm/msm into drm-next 2021-08-17 10:53:52 +10:00
drivers drm/amdgpu: Disable PCIE_DPM on Intel RKL Platform 2021-08-30 15:09:27 -04:00
fs 5 cifs/smb3 fixes, including a DFS failover fix, 2 fallocate fixes, and 2 trivial coverity cleanups 2021-07-24 17:26:47 -07:00
include drm/tegra: Changes for v5.15-rc1 2021-08-26 13:05:19 +10:00
init
ipc
kernel smpboot: fix duplicate and misplaced inlining directive 2021-07-25 11:06:37 -07:00
lib
LICENSES
mm mm: fix the deadlock in finish_fault() 2021-07-23 17:43:28 -07:00
net net: sched: cls_api: Fix the the wrong parameter 2021-07-22 00:48:03 -07:00
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sound Bus: Make remove callback return void tag 2021-08-11 08:47:08 +10:00
tools selftest: use mmap instead of posix_memalign to allocate memory 2021-07-23 17:43:28 -07:00
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MAINTAINERS Merge tag 'amd-drm-next-5.15-2021-07-29' of https://gitlab.freedesktop.org/agd5f/linux into drm-next 2021-07-30 16:48:35 +10:00
Makefile Linux 5.14-rc3 2021-07-25 15:35:14 -07:00
README

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.