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drm/amdgpu: only register VGA devices with the VGA arbiter

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We only need to arbitrate VGA access on VGA compatible devices.

Reviewed-by: Feifei Xu <Feifei.Xu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2020-11-20 09:53:55 -05:00
parent 95666c6cfe
commit 38d6be8199
1 changed files with 4 additions and 2 deletions
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6
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
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@ -3346,7 +3346,8 @@ int amdgpu_device_init(struct amdgpu_device *adev,
/* if we have > 1 VGA cards, then disable the amdgpu VGA resources */
/* this will fail for cards that aren't VGA class devices, just
* ignore it */
vga_client_register(adev->pdev, adev, NULL, amdgpu_device_vga_set_decode);
if ((adev->pdev->class >> 8) == PCI_CLASS_DISPLAY_VGA)
vga_client_register(adev->pdev, adev, NULL, amdgpu_device_vga_set_decode);
if (amdgpu_device_supports_boco(ddev))
boco = true;
@ -3605,7 +3606,8 @@ void amdgpu_device_fini(struct amdgpu_device *adev)
vga_switcheroo_unregister_client(adev->pdev);
if (amdgpu_device_supports_boco(adev_to_drm(adev)))
vga_switcheroo_fini_domain_pm_ops(adev->dev);
vga_client_register(adev->pdev, NULL, NULL, NULL);
if ((adev->pdev->class >> 8) == PCI_CLASS_DISPLAY_VGA)
vga_client_register(adev->pdev, NULL, NULL, NULL);
if (adev->rio_mem)
pci_iounmap(adev->pdev, adev->rio_mem);
adev->rio_mem = NULL;