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drm/radeon: Fix EEH during kexec 

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.
Enabled only on PPC because this patch causes issues on some other
boards.

Signed-off-by: Kyle Mahlkuch <kmahlkuc@linux.vnet.ibm.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Kyle Mahlkuch 2019-10-25 15:40:50 -05:00 committed by Alex Deucher
parent 30ef5c7eab
commit 722608433c
1 changed files with 14 additions and 0 deletions
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14
drivers/gpu/drm/radeon/radeon_drv.c
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@ -379,11 +379,25 @@ radeon_pci_remove(struct pci_dev *pdev)
static void
radeon_pci_shutdown(struct pci_dev *pdev)
{
#ifdef CONFIG_PPC64
struct drm_device *ddev = pci_get_drvdata(pdev);
#endif
/* 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);
#ifdef CONFIG_PPC64
/* Some adapters need to be suspended before a
* shutdown occurs in order to prevent an error
* during kexec.
* Make this power specific becauase it breaks
* some non-power boards.
*/
radeon_suspend_kms(ddev, true, true, false);
#endif
}
static int radeon_pmops_suspend(struct device *dev)