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Subject[PATCH 5.2 037/137] drm/radeon: Fix EEH during kexec
Date
From: KyleMahlkuch <kmahlkuc@linux.vnet.ibm.com>

[ Upstream commit 6f7fe9a93e6c09bf988c5059403f5f88e17e21e6 ]

During kexec some adapters hit an EEH since they are not properly
shut down in the radeon_pci_shutdown() function. Adding
radeon_suspend_kms() fixes this issue.

Signed-off-by: KyleMahlkuch <kmahlkuc@linux.vnet.ibm.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/gpu/drm/radeon/radeon_drv.c | 8 ++++++++
1 file changed, 8 insertions(+)

diff --git a/drivers/gpu/drm/radeon/radeon_drv.c b/drivers/gpu/drm/radeon/radeon_drv.c
index 2e96c886392bd..60ee51edd7823 100644
--- a/drivers/gpu/drm/radeon/radeon_drv.c
+++ b/drivers/gpu/drm/radeon/radeon_drv.c
@@ -344,11 +344,19 @@ radeon_pci_remove(struct pci_dev *pdev)
static void
radeon_pci_shutdown(struct pci_dev *pdev)
{
+ struct drm_device *ddev = pci_get_drvdata(pdev);
+
/* if we are running in a VM, make sure the device
* torn down properly on reboot/shutdown
*/
if (radeon_device_is_virtual())
radeon_pci_remove(pdev);
+
+ /* Some adapters need to be suspended before a
+ * shutdown occurs in order to prevent an error
+ * during kexec.
+ */
+ radeon_suspend_kms(ddev, true, true, false);
}

static int radeon_pmops_suspend(struct device *dev)
--
2.20.1


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