mirror_ubuntu-kernels/drivers/gpu/drm/amd/pm
Mario Limonciello c2e3f5b571 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 <evan.quan@amd.com>
Signed-off-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-07-12 11:12:09 -04:00
..
inc drm/amd/pm: expose swctf threshold setting for legacy powerplay 2023-06-30 13:12:16 -04:00
legacy-dpm drm/amd/pm: resolve reboot exception for si oland 2023-06-09 10:57:03 -04:00
powerplay drm/amd/pm: avoid unintentional shutdown due to temperature momentary fluctuation 2023-06-30 13:12:16 -04:00
swsmu drm/amd/pm: conditionally disable pcie lane/speed switching for SMU13 2023-07-12 11:12:09 -04:00
amdgpu_dpm_internal.c drm/amd/pm: add missing prototypes to amdgpu_dpm_internal 2022-02-07 18:03:50 -05:00
amdgpu_dpm.c drm/amd/pm: avoid potential UBSAN issue on legacy asics 2023-06-09 09:36:34 -04:00
amdgpu_pm.c drm/amd/pm: disbale dcefclk device sysnode on GFX v9.4.3 chip 2023-07-10 09:02:37 -04:00
Makefile drm/amd/pm: relocate the power related headers 2022-01-14 17:51:14 -05:00