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Commit cfd316d5 authored by Alex Deucher's avatar Alex Deucher
Browse files

drm/amdgpu/cgs: add sys info query for pcie gen and link width 



Needed by powerplay to properly handle pcie dpm switching.

Reviewed-by: default avatarJammy Zhou <Jammy.Zhou@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent d0dd7f0c

drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c

+6 −0
Original line number Diff line number Diff line
@@ -754,6 +754,12 @@ static int amdgpu_cgs_query_system_info(void *cgs_device, 
	case CGS_SYSTEM_INFO_ADAPTER_BDF_ID:

		sys_info->value = adev->pdev->devfn | (adev->pdev->bus->number << 8);

		break;

	case CGS_SYSTEM_INFO_PCIE_GEN_INFO:

		sys_info->value = adev->pm.pcie_gen_mask;

		break;

	case CGS_SYSTEM_INFO_PCIE_MLW:

		sys_info->value = adev->pm.pcie_mlw_mask;

		break;

	default:

		return -ENODEV;

	}

drivers/gpu/drm/amd/include/cgs_common.h

+2 −0
Original line number Diff line number Diff line
@@ -107,6 +107,8 @@ enum cgs_ucode_id { 


enum cgs_system_info_id {

	CGS_SYSTEM_INFO_ADAPTER_BDF_ID = 1,

	CGS_SYSTEM_INFO_PCIE_GEN_INFO,

	CGS_SYSTEM_INFO_PCIE_MLW,

	CGS_SYSTEM_INFO_ID_MAXIMUM,

};