Re: [PATCH] drm/i915: use compute_config in set_config v4

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Reviewed-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@xxxxxxxxx>

On 11/07/2014 11:11 PM, Jesse Barnes wrote:
> This will allow us to consult more info before deciding whether to flip
> or do a full mode set.
> 
> v2:
>    - don't use uninitialized or incorrect pipe masks in set_config
>      failure path (Ander)
> v3:
>    - fixup for pipe_config changes in compute_config (Jesse)
> v4:
>    - drop spurious hunk in force restore path (Ander)
> 
> Signed-off-by: Jesse Barnes <jbarnes@xxxxxxxxxxxxxxxx>
> ---
>   drivers/gpu/drm/i915/intel_display.c | 20 ++++++++++++++++++--
>   1 file changed, 18 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
> index a3ebab8..72123e0 100644
> --- a/drivers/gpu/drm/i915/intel_display.c
> +++ b/drivers/gpu/drm/i915/intel_display.c
> @@ -11178,6 +11178,8 @@ static int intel_crtc_set_config(struct drm_mode_set *set)
>   	struct drm_device *dev;
>   	struct drm_mode_set save_set;
>   	struct intel_set_config *config;
> +	struct intel_crtc_config *pipe_config;
> +	unsigned modeset_pipes, prepare_pipes, disable_pipes;
>   	int ret;
>   
>   	BUG_ON(!set);
> @@ -11223,9 +11225,23 @@ static int intel_crtc_set_config(struct drm_mode_set *set)
>   	if (ret)
>   		goto fail;
>   
> +	pipe_config = intel_modeset_compute_config(set->crtc, set->mode,
> +						   set->fb,
> +						   &modeset_pipes,
> +						   &prepare_pipes,
> +						   &disable_pipes);
> +	if (IS_ERR(pipe_config))
> +		goto fail;
> +
> +	/* set_mode will free it in the mode_changed case */
> +	if (!config->mode_changed)
> +		kfree(pipe_config);
> +
>   	if (config->mode_changed) {
> -		ret = intel_set_mode(set->crtc, set->mode,
> -				     set->x, set->y, set->fb);
> +		ret = intel_set_mode_pipes(set->crtc, set->mode,
> +					   set->x, set->y, set->fb, pipe_config,
> +					   modeset_pipes, prepare_pipes,
> +					   disable_pipes);
>   	} else if (config->fb_changed) {
>   		struct intel_crtc *intel_crtc = to_intel_crtc(set->crtc);
>   
> 

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