[Intel-gfx] [PATCH 2/2] drm/i915/guc: Turn on GuC/HuC auto mode

[Rodrigo Vivi]

On Fri, Jul 12, 2019 at 11:14:45AM +0000, Michal Wajdeczko wrote:
> Using "enable_guc" modparam auto mode (-1) will let driver
> decide on which platforms and in which configuration we want
> to use GuC/HuC firmwares.
> 
> Today driver will enable HuC firmware authentication by GuC
> only on Gen11+ platforms as HuC firmware is required to unlock
> advanced video codecs in media driver.
> 
> Legacy platforms with GuC/HuC are not affected by this change
> as for them driver still defaults to disabled(0) in auto mode.
> 
> Signed-off-by: Michal Wajdeczko <michal.wajdeczko at intel.com>
> Cc: Jani Nikula <jani.nikula at intel.com>
> Cc: Joonas Lahtinen <joonas.lahtinen at linux.intel.com>
> Cc: Rodrigo Vivi <rodrigo.vivi at intel.com>
> Cc: Chris Wilson <chris at chris-wilson.co.uk>
> Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio at intel.com>

Reviewed-by: Rodrigo Vivi <rodrigo.vivi at intel.com>

> ---
>  drivers/gpu/drm/i915/i915_params.h | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/i915/i915_params.h b/drivers/gpu/drm/i915/i915_params.h
> index d29ade3b7de6..5736c55694fe 100644
> --- a/drivers/gpu/drm/i915/i915_params.h
> +++ b/drivers/gpu/drm/i915/i915_params.h
> @@ -54,7 +54,7 @@ struct drm_printer;
>  	param(int, disable_power_well, -1) \
>  	param(int, enable_ips, 1) \
>  	param(int, invert_brightness, 0) \
> -	param(int, enable_guc, 0) \
> +	param(int, enable_guc, -1) \
>  	param(int, guc_log_level, -1) \
>  	param(char *, guc_firmware_path, NULL) \
>  	param(char *, huc_firmware_path, NULL) \
> -- 
> 2.19.2
>