Commit 82841825 authored by Yifan Zha's avatar Yifan Zha Committed by Alex Deucher
Browse files

drm/admgpu: Skip CG/PG on SOC21 under SRIOV VF 



[Why]
There is no CG(Clock Gating)/PG(Power Gating) requirement on SRIOV VF.
For multi VF, VF should not enable any CG/PG features.
For one VF, PF will program CG/PG related registers.

[How]
Do not set any cg/pg flag bit at early init under sriov.

Acked-by: default avatarChristian König <christian.koenig@amd.com>
Signed-off-by: default avatarYifan Zha <Yifan.Zha@amd.com>
Reviewed-by: default avatarHawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent bbb860d4

drivers/gpu/drm/amd/amdgpu/soc21.c

+4 −0
Original line number Diff line number Diff line
@@ -582,6 +582,10 @@ static int soc21_common_early_init(void *handle) 
			AMD_PG_SUPPORT_JPEG |

			AMD_PG_SUPPORT_ATHUB |

			AMD_PG_SUPPORT_MMHUB;

		if (amdgpu_sriov_vf(adev)) {

			adev->cg_flags = 0;

			adev->pg_flags = 0;

		}

		adev->external_rev_id = adev->rev_id + 0x1; // TODO: need update

		break;

	case IP_VERSION(11, 0, 2):