[Intel-gfx] [PATCH v3 6/6] drm/i915/guc: change default to using GuC submission if possible

[Tvrtko Ursulin]

On 06/05/16 20:31, Dave Gordon wrote:
> This patch simply changes the default value of "enable_guc_submission"
> from 0 (never) to -1 (auto). This means that GuC submission will be
> used if the platform has a GuC, the GuC supports the request submission
> protocol, and any required GuC firmwware was successfully loaded. If any
> of these conditions are not met, the driver will fall back to using
> execlist mode.
>
> Signed-off-by: Dave Gordon <david.s.gordon at intel.com>
> ---
>   drivers/gpu/drm/i915/i915_params.c | 4 ++--
>   1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/i915_params.c b/drivers/gpu/drm/i915/i915_params.c
> index 6a5578c..573e787 100644
> --- a/drivers/gpu/drm/i915/i915_params.c
> +++ b/drivers/gpu/drm/i915/i915_params.c
> @@ -55,7 +55,7 @@ struct i915_params i915 __read_mostly = {
>   	.nuclear_pageflip = 0,
>   	.edp_vswing = 0,
>   	.enable_guc_loading = -1,
> -	.enable_guc_submission = 0,
> +	.enable_guc_submission = -1,
>   	.guc_log_level = -1,
>   	.enable_dp_mst = true,
>   	.inject_load_failure = 0,
> @@ -207,7 +207,7 @@ struct i915_params i915 __read_mostly = {
>   module_param_named_unsafe(enable_guc_submission, i915.enable_guc_submission, int, 0400);
>   MODULE_PARM_DESC(enable_guc_submission,
>   		"Enable GuC submission "
> -		"(-1=auto, 0=never [default], 1=if available, 2=required)");
> +		"(-1=auto [default], 0=never, 1=if available, 2=required)");
>
>   module_param_named(guc_log_level, i915.guc_log_level, int, 0400);
>   MODULE_PARM_DESC(guc_log_level,
>

Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin at intel.com>

Regards,

Tvrtko