[PATCH 11/12] drm/amdgpu: add a flag to note when the driver is in shutdown

[Alex Deucher]

When we are tearing down the device for PCI shutdown, set the
flag.  The driver needs to know this case so it can set the
SMC into the proper state.

Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu.h     | 1 +
 drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 2 ++
 2 files changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
index e661417ba9dd..64e68c0dc737 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -993,6 +993,7 @@ struct amdgpu_device {
 	/* record last mm index being written through WREG32*/
 	unsigned long last_mm_index;
 	bool                            in_gpu_reset;
+	bool                            in_gpu_shutdown;
 	struct mutex  lock_reset;
 	struct amdgpu_doorbell_index doorbell_index;
 
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
index 4743801357c5..28f85d9135a3 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
@@ -1089,12 +1089,14 @@ amdgpu_pci_shutdown(struct pci_dev *pdev)
 	struct drm_device *dev = pci_get_drvdata(pdev);
 	struct amdgpu_device *adev = dev->dev_private;
 
+	adev->in_gpu_shutdown = true;
 	/* if we are running in a VM, make sure the device
 	 * torn down properly on reboot/shutdown.
 	 * unfortunately we can't detect certain
 	 * hypervisors so just do this all the time.
 	 */
 	amdgpu_device_ip_suspend(adev);
+	adev->in_gpu_shutdown = false;
 }
 
 static int amdgpu_pmops_suspend(struct device *dev)
-- 
2.20.1