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| author | Mario Limonciello <[email protected]> | 2023-07-07 19:31:35 +0000 |
|---|---|---|
| committer | Alex Deucher <[email protected]> | 2023-07-12 15:12:09 +0000 |
| commit | c2e3f5b571c543b089ef350cfe8073af151fe7b9 (patch) | |
| tree | 8a49900baa1ef72f13d3ec7b6d4c48de5cc18cc6 /drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c | |
| parent | drm/amdgpu: add watchdog timer enablement for gfx_v9_4_3 (diff) | |
| download | kernel-c2e3f5b571c543b089ef350cfe8073af151fe7b9.tar.gz kernel-c2e3f5b571c543b089ef350cfe8073af151fe7b9.zip | |
drm/amd/pm: conditionally disable pcie lane/speed switching for SMU13
Intel platforms such as Sapphire Rapids and Raptor Lake don't support
dynamic pcie lane or speed switching.
This limitation seems to carry over from one generation to another.
To be safer, disable dynamic pcie lane width and speed switching when
running on an Intel platform.
Link: https://edc.intel.com/content/www/us/en/design/products/platforms/details/raptor-lake-s/13th-generation-core-processors-datasheet-volume-1-of-2/005/pci-express-support/
Link: https://gitlab.freedesktop.org/drm/amd/-/issues/2663
Co-developed-by: Evan Quan <[email protected]>
Signed-off-by: Evan Quan <[email protected]>
Signed-off-by: Mario Limonciello <[email protected]>
Reviewed-by: Alex Deucher <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c')
0 files changed, 0 insertions, 0 deletions