[PATCH 4/9] drm/i915: Include need_vlv_dsi_wa in intel_vblank_evade_ctx

[Shankar, Uma]

> -----Original Message-----
> From: Intel-gfx <intel-gfx-bounces at lists.freedesktop.org> On Behalf Of Ville
> Syrjala
> Sent: Wednesday, December 13, 2023 3:55 PM
> To: intel-gfx at lists.freedesktop.org
> Subject: [PATCH 4/9] drm/i915: Include need_vlv_dsi_wa in
> intel_vblank_evade_ctx
> 
> From: Ville Syrjälä <ville.syrjala at linux.intel.com>
> 
> Pull the need_vlv_dsi_wa details into intel_vblank_evade_init() so that caller
> doesn't have to care about it.

Looks Good to me.
Reviewed-by: Uma Shankar <uma.shankar at intel.com>

> Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
> ---
>  drivers/gpu/drm/i915/display/intel_crtc.c | 9 ++++++---
>  1 file changed, 6 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_crtc.c
> b/drivers/gpu/drm/i915/display/intel_crtc.c
> index 93474fc9e502..92cfb7c8eadb 100644
> --- a/drivers/gpu/drm/i915/display/intel_crtc.c
> +++ b/drivers/gpu/drm/i915/display/intel_crtc.c
> @@ -473,6 +473,7 @@ static int intel_mode_vblank_start(const struct
> drm_display_mode *mode)
> 
>  struct intel_vblank_evade_ctx {
>  	int min, max, vblank_start;
> +	bool need_vlv_dsi_wa;
>  };
> 
>  static void intel_vblank_evade_init(const struct intel_crtc_state *old_crtc_state,
> @@ -480,9 +481,13 @@ static void intel_vblank_evade_init(const struct
> intel_crtc_state *old_crtc_stat
>  				    struct intel_vblank_evade_ctx *evade)  {
>  	struct intel_crtc *crtc = to_intel_crtc(new_crtc_state->uapi.crtc);
> +	struct drm_i915_private *i915 = to_i915(crtc->base.dev);
>  	const struct intel_crtc_state *crtc_state;
>  	const struct drm_display_mode *adjusted_mode;
> 
> +	evade->need_vlv_dsi_wa = (IS_VALLEYVIEW(i915) ||
> IS_CHERRYVIEW(i915)) &&
> +		intel_crtc_has_type(new_crtc_state, INTEL_OUTPUT_DSI);
> +
>  	/*
>  	 * During fastsets/etc. the transcoder is still
>  	 * running with the old timings at this point.
> @@ -550,8 +555,6 @@ void intel_pipe_update_start(struct intel_atomic_state
> *state,
>  	long timeout = msecs_to_jiffies_timeout(1);
>  	int scanline;
>  	wait_queue_head_t *wq = drm_crtc_vblank_waitqueue(&crtc->base);
> -	bool need_vlv_dsi_wa = (IS_VALLEYVIEW(dev_priv) ||
> IS_CHERRYVIEW(dev_priv)) &&
> -		intel_crtc_has_type(new_crtc_state, INTEL_OUTPUT_DSI);
>  	struct intel_vblank_evade_ctx evade;
>  	DEFINE_WAIT(wait);
> 
> @@ -633,7 +636,7 @@ void intel_pipe_update_start(struct intel_atomic_state
> *state,
>  	 *
>  	 * FIXME figure out if BXT+ DSI suffers from this as well
>  	 */
> -	while (need_vlv_dsi_wa && scanline == evade.vblank_start)
> +	while (evade.need_vlv_dsi_wa && scanline == evade.vblank_start)
>  		scanline = intel_get_crtc_scanline(crtc);
> 
>  	drm_crtc_vblank_put(&crtc->base);
> --
> 2.41.0