Commit 17a37fa1 authored by Yifan Zha's avatar Yifan Zha Committed by Alex Deucher
Browse files

drm/amdgpu: Remove programming GCMC_VM_FB_LOCATION* on gfxhub_v3_0_3 in VF 



[Why]
GCMC_VM related registers should be programmed by PSP on host side.
L1 and RLCG will block these regisers on VF.

[How]
Remove programming GCMC_VM_FB_LOCATION_BASE/TOP on gfxhub_v3_0_3 under SRIOV VF.

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 f3416dc8

drivers/gpu/drm/amd/amdgpu/gfxhub_v3_0_3.c

+0 −12
Original line number Diff line number Diff line
@@ -357,18 +357,6 @@ static void gfxhub_v3_0_3_program_invalidation(struct amdgpu_device *adev) 


static int gfxhub_v3_0_3_gart_enable(struct amdgpu_device *adev)

{

	if (amdgpu_sriov_vf(adev)) {

		/*

		 * GCMC_VM_FB_LOCATION_BASE/TOP is NULL for VF, becuase they are

		 * VF copy registers so vbios post doesn't program them, for

		 * SRIOV driver need to program them

		 */

		WREG32_SOC15(GC, 0, regGCMC_VM_FB_LOCATION_BASE,

			     adev->gmc.vram_start >> 24);

		WREG32_SOC15(GC, 0, regGCMC_VM_FB_LOCATION_TOP,

			     adev->gmc.vram_end >> 24);

	}



	/* GART Enable. */

	gfxhub_v3_0_3_init_gart_aperture_regs(adev);

	gfxhub_v3_0_3_init_system_aperture_regs(adev);