[PATCH v3 1/7] drm: Add a vendor-specific recovery method to device wedged uevent

[Raag Jadav]

On Thu, Jul 03, 2025 at 10:50:53AM +0530, Riana Tauro wrote:
> On 7/3/2025 9:36 AM, Raag Jadav wrote:
> > On Wed, Jul 02, 2025 at 07:41:11PM +0530, Riana Tauro wrote:
> > > Certain errors can cause the device to be wedged and may
> > > require a vendor specific recovery method to restore normal
> > > operation.
> > > 
> > > Add a recovery method 'WEDGED=vendor-specific' for such errors. Vendors
> > > must provide additional recovery documentation if this method
> > > is used.

...

> > > diff --git a/include/drm/drm_device.h b/include/drm/drm_device.h
> > > index 08b3b2467c4c..40a4caaa6313 100644
> > > --- a/include/drm/drm_device.h
> > > +++ b/include/drm/drm_device.h
> > > @@ -26,10 +26,14 @@ struct pci_controller;
> > >    * Recovery methods for wedged device in order of less to more side-effects.
> > >    * To be used with drm_dev_wedged_event() as recovery @method. Callers can
> > >    * use any one, multiple (or'd) or none depending on their needs.
> > > + *
> > > + * If DRM_WEDGE_RECOVERY_VENDOR method is used, vendors must provide additional
> > > + * documentation outlining further recovery steps.
> > 
> > The original documentation is sufficient so let's not duplicate specific
> > cases here.
> 
> Added it here so anyone checking the code directly is aware.

Then a reference to uapi doc would be more useful.

Raag