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drm/amdgpu: set system aperture to cover whole FB region in mmhub v9.4

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In XGMI configuration, the FB region covers vram region from peer
device, adjust system aperture to cover all of them

Signed-off-by: Le Ma <le.ma@amd.com>
Reviewed-by: Feifei Xu <Feifei.Xu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Le Ma
2019-04-26 16:36:44 +08:00
committed by Alex Deucher
parent 75b2fce2d8
commit 7d0670f441
1 changed files with 2 additions and 3 deletions
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drivers/gpu/drm/amd/amdgpu/mmhub_v9_4.c
+2 -3
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@@ -114,12 +114,11 @@ static void mmhub_v9_4_init_system_aperture_regs(struct amdgpu_device *adev,
WREG32_SOC15_OFFSET(MMHUB, 0,
mmVMSHAREDVC0_MC_VM_SYSTEM_APERTURE_LOW_ADDR,
hubid * MMHUB_INSTANCE_REGISTER_OFFSET,
min(adev->gmc.vram_start, adev->gmc.agp_start)
>> 18);
min(adev->gmc.fb_start, adev->gmc.agp_start) >> 18);
WREG32_SOC15_OFFSET(MMHUB, 0,
mmVMSHAREDVC0_MC_VM_SYSTEM_APERTURE_HIGH_ADDR,
hubid * MMHUB_INSTANCE_REGISTER_OFFSET,
max(adev->gmc.vram_end, adev->gmc.agp_end) >> 18);
max(adev->gmc.fb_end, adev->gmc.agp_end) >> 18);
/* Set default page address. */
value = adev->vram_scratch.gpu_addr - adev->gmc.vram_start +