From: Jane Jian <Jane.Jian@amd.com>
Date: Mon, 22 Aug 2022 07:15:32 +0000 (+0800)
Subject: drm/amdgpu/vcn: Disable CG/PG for SRIOV
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=c322b422ab0f7b3b15c0cdd3f2c534094eaefcef;p=linux.git

drm/amdgpu/vcn: Disable CG/PG for SRIOV

For sriov, CG and MG are controlled from hypervisor side,
no need to manage them again in ip init

Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Jane Jian <Jane.Jian@amd.com>
Reviewed-by: Sonny Jiang <sonny.jiang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---

diff --git a/drivers/gpu/drm/amd/amdgpu/soc21.c b/drivers/gpu/drm/amd/amdgpu/soc21.c
index 34a2672659714..a26c5723c46e2 100644
--- a/drivers/gpu/drm/amd/amdgpu/soc21.c
+++ b/drivers/gpu/drm/amd/amdgpu/soc21.c
@@ -637,6 +637,11 @@ static int soc21_common_early_init(void *handle)
 		adev->pg_flags = AMD_PG_SUPPORT_VCN |
 			AMD_PG_SUPPORT_VCN_DPG |
 			AMD_PG_SUPPORT_JPEG;
+		if (amdgpu_sriov_vf(adev)) {
+			/* hypervisor control CG and PG enablement */
+			adev->cg_flags = 0;
+			adev->pg_flags = 0;
+		}
 		adev->external_rev_id = adev->rev_id + 0x20;
 		break;
 	default: