diff options
| author | Koba Ko <koba.ko@canonical.com> | 2021-08-30 10:02:00 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-08-30 15:09:27 -0400 |
| commit | b3dc549986eb7b38eba4a144e979dc93f386751f (patch) | |
| tree | 9c7bbbfbe8c989697e6e790b27161472cedd7091 /scripts/gcc-plugins/cyc_complexity_plugin.c | |
| parent | 50c6dedeb1aac21c445ee4193f7660503873f395 (diff) | |
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: 1a31474cdb48 ("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>
Diffstat (limited to 'scripts/gcc-plugins/cyc_complexity_plugin.c')
0 files changed, 0 insertions, 0 deletions