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path: root/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
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Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_device.c')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu_device.c21
1 files changed, 16 insertions, 5 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index c4a4e2fe6681..9bca7e5547c5 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -35,6 +35,7 @@
#include <linux/devcoredump.h>
#include <generated/utsrelease.h>
#include <linux/pci-p2pdma.h>
+#include <linux/apple-gmux.h>
#include <drm/drm_aperture.h>
#include <drm/drm_atomic_helper.h>
@@ -3930,12 +3931,15 @@ fence_driver_init:
if ((adev->pdev->class >> 8) == PCI_CLASS_DISPLAY_VGA)
vga_client_register(adev->pdev, amdgpu_device_vga_set_decode);
- if (amdgpu_device_supports_px(ddev)) {
- px = true;
+ px = amdgpu_device_supports_px(ddev);
+
+ if (px || (!pci_is_thunderbolt_attached(adev->pdev) &&
+ apple_gmux_detect(NULL, NULL)))
vga_switcheroo_register_client(adev->pdev,
&amdgpu_switcheroo_ops, px);
+
+ if (px)
vga_switcheroo_init_domain_pm_ops(adev->dev, &adev->vga_pm_domain);
- }
if (adev->gmc.xgmi.pending_reset)
queue_delayed_work(system_wq, &mgpu_info.delayed_reset_work,
@@ -4039,6 +4043,7 @@ void amdgpu_device_fini_hw(struct amdgpu_device *adev)
void amdgpu_device_fini_sw(struct amdgpu_device *adev)
{
int idx;
+ bool px;
amdgpu_fence_driver_sw_fini(adev);
amdgpu_device_ip_fini(adev);
@@ -4057,10 +4062,16 @@ void amdgpu_device_fini_sw(struct amdgpu_device *adev)
kfree(adev->bios);
adev->bios = NULL;
- if (amdgpu_device_supports_px(adev_to_drm(adev))) {
+
+ px = amdgpu_device_supports_px(adev_to_drm(adev));
+
+ if (px || (!pci_is_thunderbolt_attached(adev->pdev) &&
+ apple_gmux_detect(NULL, NULL)))
vga_switcheroo_unregister_client(adev->pdev);
+
+ if (px)
vga_switcheroo_fini_domain_pm_ops(adev->dev);
- }
+
if ((adev->pdev->class >> 8) == PCI_CLASS_DISPLAY_VGA)
vga_client_unregister(adev->pdev);