diff options
| author | Hawking Zhang <Hawking.Zhang@amd.com> | 2026-01-17 14:47:09 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2026-03-17 17:32:30 +0300 |
| commit | 5aff5c6831da26425255461c7a227d6e165fde02 (patch) | |
| tree | f7f5325e9fce20dfffe896663f4448c5721fd651 | |
| parent | c5f8454cd195267c6934f731d9d3be65395e53b9 (diff) | |
| download | linux-5aff5c6831da26425255461c7a227d6e165fde02.tar.xz | |
drm/amdgpu/gmc12: Update gmc aperture base for A + A
Query mmhub MC_VM_FB_OFFSET, XGMI_LFB_CNTL|SIZE
registers to calculate gmc apeture base address
for A + A configuration
Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Le Ma <le.ma@amd.com>
Reviewed-by: Feifei Xu <Feifei.Xu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/gmc_v12_0.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v12_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v12_0.c index 2bbd63ffe710..ac0536be0f90 100644 --- a/drivers/gpu/drm/amd/amdgpu/gmc_v12_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v12_0.c @@ -736,8 +736,12 @@ static int gmc_v12_0_mc_init(struct amdgpu_device *adev) adev->gmc.aper_size = pci_resource_len(adev->pdev, 0); #ifdef CONFIG_X86_64 - if ((adev->flags & AMD_IS_APU) && !amdgpu_passthrough(adev)) { - adev->gmc.aper_base = adev->mmhub.funcs->get_mc_fb_offset(adev); + if (((adev->flags & AMD_IS_APU) && !amdgpu_passthrough(adev)) || + (adev->gmc.xgmi.connected_to_cpu)) { + adev->gmc.aper_base = + adev->mmhub.funcs->get_mc_fb_offset(adev) + + adev->gmc.xgmi.physical_node_id * + adev->gmc.xgmi.node_segment_size; adev->gmc.aper_size = adev->gmc.real_vram_size; } #endif |