Koba Ko 45bd9dd1be drm/amdgpu: Disable PCIE_DPM on Intel RKL Platform ...

[ Upstream commit b3dc549986 ]

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>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2021-09-26 14:08:59 +02:00

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drm

drm/amdgpu: Disable PCIE_DPM on Intel RKL Platform

2021-09-26 14:08:59 +02:00

host1x

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ipu-v3

gpu: ipu-v3: Fix i.MX IPU-v3 offset calculations for (semi)planar U/V formats

2021-09-08 08:49:00 +02:00

trace

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vga

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Makefile

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