From 61e113067b636fe73d5d0ac877bcfcebe7cfd034 Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexander.deucher@amd.com>
Date: Mon, 22 Aug 2016 13:50:22 -0400
Subject: [PATCH] drm/amdgpu: wire up a pci shutdown callback
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Normally on shutdown or reboot we don't care about necessarily
making sure the hw is in a good state because the system is about
to be powered down or reset. However, after a shutdown or reboot
in a VM, it's best to tear down the hw properly otherwise there
can be problems with the next VM use.
Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Edward O'Callaghan <funfunctor@folklore1984.net>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
index 94d013526e8e..ea54e3044787 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
@@ -471,6 +471,19 @@ amdgpu_pci_remove(struct pci_dev *pdev)
drm_put_dev(dev);
}
+static void
+amdgpu_pci_shutdown(struct pci_dev *pdev)
+{
+ struct drm_device *dev = pci_get_drvdata(pdev);
+ struct amdgpu_device *adev = dev->dev_private;
+
+ /* if we are running in a VM, make sure the device
+ * torn down properly on reboot/shutdown
+ */
+ if (adev->virtualization.is_virtual)
+ amdgpu_pci_remove(pdev);
+}
+
static int amdgpu_pmops_suspend(struct device *dev)
{
struct pci_dev *pdev = to_pci_dev(dev);
@@ -692,6 +705,7 @@ static struct pci_driver amdgpu_kms_pci_driver = {
.id_table = pciidlist,
.probe = amdgpu_pci_probe,
.remove = amdgpu_pci_remove,
+ .shutdown = amdgpu_pci_shutdown,
.driver.pm = &amdgpu_pm_ops,
};
--
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