* [PATCH v3] drm/radeon: Fix EEH during kexec
@ 2019-10-25 20:40 KyleMahlkuch
2019-10-26 8:00 ` Greg KH
2019-10-28 14:07 ` Alex Deucher
0 siblings, 2 replies; 5+ messages in thread
From: KyleMahlkuch @ 2019-10-25 20:40 UTC (permalink / raw)
To: alexander.deucher; +Cc: stable, amd-gfx, Kyle Mahlkuch
From: Kyle Mahlkuch <kmahlkuc@linux.vnet.ibm.com>
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>
---
drivers/gpu/drm/radeon/radeon_drv.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/drivers/gpu/drm/radeon/radeon_drv.c b/drivers/gpu/drm/radeon/radeon_drv.c
index 9e55076..4528f4d 100644
--- a/drivers/gpu/drm/radeon/radeon_drv.c
+++ b/drivers/gpu/drm/radeon/radeon_drv.c
@@ -379,11 +379,25 @@ static int radeon_pci_probe(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)
--
1.8.3.1
^ permalink raw reply related [flat|nested] 5+ messages in thread* Re: [PATCH v3] drm/radeon: Fix EEH during kexec
2019-10-25 20:40 [PATCH v3] drm/radeon: Fix EEH during kexec KyleMahlkuch
@ 2019-10-26 8:00 ` Greg KH
2019-10-28 14:07 ` Alex Deucher
1 sibling, 0 replies; 5+ messages in thread
From: Greg KH @ 2019-10-26 8:00 UTC (permalink / raw)
To: KyleMahlkuch; +Cc: alexander.deucher, stable, amd-gfx
On Fri, Oct 25, 2019 at 03:40:50PM -0500, KyleMahlkuch wrote:
> From: Kyle Mahlkuch <kmahlkuc@linux.vnet.ibm.com>
>
> 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>
> ---
> drivers/gpu/drm/radeon/radeon_drv.c | 14 ++++++++++++++
> 1 file changed, 14 insertions(+)
<formletter>
This is not the correct way to submit patches for inclusion in the
stable kernel tree. Please read:
https://www.kernel.org/doc/html/latest/process/stable-kernel-rules.html
for how to do this properly.
</formletter>
^ permalink raw reply [flat|nested] 5+ messages in thread* Re: [PATCH v3] drm/radeon: Fix EEH during kexec
2019-10-25 20:40 [PATCH v3] drm/radeon: Fix EEH during kexec KyleMahlkuch
2019-10-26 8:00 ` Greg KH
@ 2019-10-28 14:07 ` Alex Deucher
1 sibling, 0 replies; 5+ messages in thread
From: Alex Deucher @ 2019-10-28 14:07 UTC (permalink / raw)
To: KyleMahlkuch; +Cc: Deucher, Alexander, amd-gfx list, for 3.8
On Fri, Oct 25, 2019 at 4:44 PM KyleMahlkuch
<kmahlkuc@linux.vnet.ibm.com> wrote:
>
> From: Kyle Mahlkuch <kmahlkuc@linux.vnet.ibm.com>
>
> 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>
Applied. Thanks!
Alex
> ---
> drivers/gpu/drm/radeon/radeon_drv.c | 14 ++++++++++++++
> 1 file changed, 14 insertions(+)
>
> diff --git a/drivers/gpu/drm/radeon/radeon_drv.c b/drivers/gpu/drm/radeon/radeon_drv.c
> index 9e55076..4528f4d 100644
> --- a/drivers/gpu/drm/radeon/radeon_drv.c
> +++ b/drivers/gpu/drm/radeon/radeon_drv.c
> @@ -379,11 +379,25 @@ static int radeon_pci_probe(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)
> --
> 1.8.3.1
>
> _______________________________________________
> amd-gfx mailing list
> amd-gfx@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/amd-gfx
^ permalink raw reply [flat|nested] 5+ messages in thread
* [PATCH v3] drm/radeon: Fix EEH during kexec
@ 2019-10-10 19:44 KyleMahlkuch
2019-10-11 4:27 ` Greg KH
0 siblings, 1 reply; 5+ messages in thread
From: KyleMahlkuch @ 2019-10-10 19:44 UTC (permalink / raw)
To: alexander.deucher; +Cc: stable, amd-gfx, KyleMahlkuch
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 <Kyle.Mahlkuch at ibm.com>
---
drivers/gpu/drm/radeon/radeon_drv.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/drivers/gpu/drm/radeon/radeon_drv.c b/drivers/gpu/drm/radeon/radeon_drv.c
index 9e55076..4528f4d 100644
--- a/drivers/gpu/drm/radeon/radeon_drv.c
+++ b/drivers/gpu/drm/radeon/radeon_drv.c
@@ -379,11 +379,25 @@ static int radeon_pci_probe(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)
--
1.8.3.1
^ permalink raw reply related [flat|nested] 5+ messages in thread* Re: [PATCH v3] drm/radeon: Fix EEH during kexec
2019-10-10 19:44 KyleMahlkuch
@ 2019-10-11 4:27 ` Greg KH
0 siblings, 0 replies; 5+ messages in thread
From: Greg KH @ 2019-10-11 4:27 UTC (permalink / raw)
To: KyleMahlkuch; +Cc: alexander.deucher, stable, amd-gfx
On Thu, Oct 10, 2019 at 02:44:29PM -0500, KyleMahlkuch wrote:
> 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 <Kyle.Mahlkuch at ibm.com>
Real email address please, with a '@' sign.
And your "From:" line did not match up with this :(
> ---
> drivers/gpu/drm/radeon/radeon_drv.c | 14 ++++++++++++++
> 1 file changed, 14 insertions(+)
<formletter>
This is not the correct way to submit patches for inclusion in the
stable kernel tree. Please read:
https://www.kernel.org/doc/html/latest/process/stable-kernel-rules.html
for how to do this properly.
</formletter>
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2019-10-28 14:08 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2019-10-25 20:40 [PATCH v3] drm/radeon: Fix EEH during kexec KyleMahlkuch
2019-10-26 8:00 ` Greg KH
2019-10-28 14:07 ` Alex Deucher
-- strict thread matches above, loose matches on Subject: below --
2019-10-10 19:44 KyleMahlkuch
2019-10-11 4:27 ` Greg KH
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox