[PATCH v4 2/6] drm/amdgpu: use pci_set_master in amdgpu_device_mode1_reset

[Pierre-Eric Pelloux-Prayer]

It's explicitly disabled above but never re-enabled, assuming
that amdgpu_device_load_pci_state would restore it. But if
pci_clear_master was called before entering amdgpu_device_mode1_reset
the saved state won't have the master status.

Reported-by: Sashiko-bot <sashiko-bot@xxxxxxxxxx>
Closes: https://sashiko.dev/#/patchset/20261029152000.22001-1-pierre-eric.pelloux-prayer@xxxxxxx?part=4
Signed-off-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@xxxxxxx>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index 5069042b5279..730e9e93d078 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -4981,6 +4981,10 @@ int amdgpu_device_mode1_reset(struct amdgpu_device *adev)
 	smp_mb();
 
 	amdgpu_device_load_pci_state(adev->pdev);
+
+	/* enable BM back */
+	pci_set_master(adev->pdev);
+
 	ret = amdgpu_psp_wait_for_bootloader(adev);
 	if (ret)
 		goto mode1_reset_failed;
-- 
2.43.0