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Vendors >> must provide additional recovery documentation if this method >> is used. >> >> Cc: André Almeida >> Cc: Christian König >> Cc: David Airlie >> Cc: >> Suggested-by: Raag Jadav >> Signed-off-by: Riana Tauro >> --- >> Documentation/gpu/drm-uapi.rst | 5 ++++- >> drivers/gpu/drm/drm_drv.c | 2 ++ >> include/drm/drm_device.h | 4 ++++ >> 3 files changed, 10 insertions(+), 1 deletion(-) >> >> diff --git a/Documentation/gpu/drm-uapi.rst b/Documentation/gpu/drm-uapi.rst >> index 263e5a97c080..1ea835a3fc66 100644 >> --- a/Documentation/gpu/drm-uapi.rst >> +++ b/Documentation/gpu/drm-uapi.rst >> @@ -424,7 +424,9 @@ uevent environment as ``WEDGED=[,..,]`` in order of less to >> more side-effects. If driver is unsure about recovery or method is unknown >> (like soft/hard system reboot, firmware flashing, physical device replacement >> or any other procedure which can't be attempted on the fly), ``WEDGED=unknown`` > > We may also want to remove the examples for unknown method so that we > don't confuse users in case any of it overlaps with vendor-specific. Okay will remove this > >> -will be sent instead. >> +will be sent instead. If recovery method is specific to vendor >> +``WEDGED=vendor-specific`` will be sent and userspace should refer to vendor >> +specific documentation for further recovery steps. >> >> Userspace consumers can parse this event and attempt recovery as per the >> following expectations. >> @@ -435,6 +437,7 @@ following expectations. >> none optional telemetry collection >> rebind unbind + bind driver >> bus-reset unbind + bus reset/re-enumeration + bind >> + vendor-specific vendor specific recovery method >> unknown consumer policy >> =============== ======================================== >> >> diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c >> index 02556363e918..c72e5c67479d 100644 >> --- a/drivers/gpu/drm/drm_drv.c >> +++ b/drivers/gpu/drm/drm_drv.c >> @@ -535,6 +535,8 @@ static const char *drm_get_wedge_recovery(unsigned int opt) >> return "rebind"; >> case DRM_WEDGE_RECOVERY_BUS_RESET: >> return "bus-reset"; >> + case DRM_WEDGE_RECOVERY_VENDOR: >> + return "vendor-specific"; >> default: >> return NULL; >> } >> 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. Riana> > Raag > >> */ >> #define DRM_WEDGE_RECOVERY_NONE BIT(0) /* optional telemetry collection */ >> #define DRM_WEDGE_RECOVERY_REBIND BIT(1) /* unbind + bind driver */ >> #define DRM_WEDGE_RECOVERY_BUS_RESET BIT(2) /* unbind + reset bus device + bind */ >> +#define DRM_WEDGE_RECOVERY_VENDOR BIT(3) /* vendor specific recovery method */ >> >> /** >> * struct drm_wedge_task_info - information about the guilty task of a wedge dev >> -- >> 2.47.1 >>