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path: root/drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c
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Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c
index a0c0b7d9f444..7f4b480ae66e 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c
@@ -638,6 +638,12 @@ static int gmc_v11_0_mc_init(struct amdgpu_device *adev)
adev->gmc.aper_base = pci_resource_start(adev->pdev, 0);
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);
+ adev->gmc.aper_size = adev->gmc.real_vram_size;
+ }
+#endif
/* In case the PCI BAR is larger than the actual amount of vram */
adev->gmc.visible_vram_size = adev->gmc.aper_size;
if (adev->gmc.visible_vram_size > adev->gmc.real_vram_size)