linux-kernel - Re: [Intel-gfx] [PATCH 2/6] drm/i915/skl: Remove linetime from skl_wm

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Message-ID: <1475699081.2381.56.camel@intel.com>
Date:   Wed, 05 Oct 2016 17:24:41 -0300
From:   Paulo Zanoni <paulo.r.zanoni@...el.com>
To:     Lyude <cpaul@...hat.com>, intel-gfx@...ts.freedesktop.org
Cc:     David Airlie <airlied@...ux.ie>, linux-kernel@...r.kernel.org,
        dri-devel@...ts.freedesktop.org,
        Daniel Vetter <daniel.vetter@...el.com>
Subject: Re: [Intel-gfx] [PATCH 2/6] drm/i915/skl: Remove linetime from
 skl_wm_values

Em Qua, 2016-10-05 às 11:33 -0400, Lyude escreveu:
> Next part of cleaning up the watermark code for skl. This is easy,
> since
> it seems that we never actually needed to keep track of the linetime
> in
> the skl_wm_values struct anyway.

Reviewed-by: Paulo Zanoni <paulo.r.zanoni@...el.com>

> 
> Signed-off-by: Lyude <cpaul@...hat.com>
> Cc: Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>
> Cc: Ville Syrjälä <ville.syrjala@...ux.intel.com>
> Cc: Matt Roper <matthew.d.roper@...el.com>
> ---
>  drivers/gpu/drm/i915/i915_drv.h      | 1 -
>  drivers/gpu/drm/i915/intel_display.c | 6 ++++--
>  drivers/gpu/drm/i915/intel_pm.c      | 7 +------
>  3 files changed, 5 insertions(+), 9 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/i915_drv.h
> b/drivers/gpu/drm/i915/i915_drv.h
> index 85e541c..d26e5999 100644
> --- a/drivers/gpu/drm/i915/i915_drv.h
> +++ b/drivers/gpu/drm/i915/i915_drv.h
> @@ -1643,7 +1643,6 @@ struct skl_ddb_allocation {
>  struct skl_wm_values {
>  	unsigned dirty_pipes;
>  	struct skl_ddb_allocation ddb;
> -	uint32_t wm_linetime[I915_MAX_PIPES];
>  	uint32_t plane[I915_MAX_PIPES][I915_MAX_PLANES][8];
>  	uint32_t plane_trans[I915_MAX_PIPES][I915_MAX_PLANES];
>  };
> diff --git a/drivers/gpu/drm/i915/intel_display.c
> b/drivers/gpu/drm/i915/intel_display.c
> index 17733af..a71d05a 100644
> --- a/drivers/gpu/drm/i915/intel_display.c
> +++ b/drivers/gpu/drm/i915/intel_display.c
> @@ -14832,6 +14832,8 @@ static void intel_begin_crtc_commit(struct
> drm_crtc *crtc,
>  	struct drm_device *dev = crtc->dev;
>  	struct drm_i915_private *dev_priv = to_i915(dev);
>  	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
> +	struct intel_crtc_state *intel_cstate =
> +		to_intel_crtc_state(crtc->state);
>  	struct intel_crtc_state *old_intel_state =
>  		to_intel_crtc_state(old_crtc_state);
>  	bool modeset = needs_modeset(crtc->state);
> @@ -14848,13 +14850,13 @@ static void intel_begin_crtc_commit(struct
> drm_crtc *crtc,
>  		intel_color_load_luts(crtc->state);
>  	}
>  
> -	if (to_intel_crtc_state(crtc->state)->update_pipe)
> +	if (intel_cstate->update_pipe)
>  		intel_update_pipe_config(intel_crtc,
> old_intel_state);
>  	else if (INTEL_GEN(dev_priv) >= 9) {
>  		skl_detach_scalers(intel_crtc);
>  
>  		I915_WRITE(PIPE_WM_LINETIME(pipe),
> -			   dev_priv->wm.skl_hw.wm_linetime[pipe]);
> +			   intel_cstate->wm.skl.optimal.linetime);
>  	}
>  }
>  
> diff --git a/drivers/gpu/drm/i915/intel_pm.c
> b/drivers/gpu/drm/i915/intel_pm.c
> index 0383516..af96888 100644
> --- a/drivers/gpu/drm/i915/intel_pm.c
> +++ b/drivers/gpu/drm/i915/intel_pm.c
> @@ -3839,8 +3839,6 @@ static void skl_compute_wm_results(struct
> drm_device *dev,
>  		temp |= PLANE_WM_EN;
>  
>  	r->plane_trans[pipe][PLANE_CURSOR] = temp;
> -
> -	r->wm_linetime[pipe] = p_wm->linetime;
>  }
>  
>  static void skl_ddb_entry_write(struct drm_i915_private *dev_priv,
> @@ -4069,7 +4067,6 @@ skl_copy_wm_for_pipe(struct skl_wm_values *dst,
>  		     struct skl_wm_values *src,
>  		     enum pipe pipe)
>  {
> -	dst->wm_linetime[pipe] = src->wm_linetime[pipe];
>  	memcpy(dst->plane[pipe], src->plane[pipe],
>  	       sizeof(dst->plane[pipe]));
>  	memcpy(dst->plane_trans[pipe], src->plane_trans[pipe],
> @@ -4320,8 +4317,6 @@ static void skl_pipe_wm_get_hw_state(struct
> drm_crtc *crtc)
>  
>  	max_level = ilk_wm_max_level(dev);
>  
> -	hw->wm_linetime[pipe] = I915_READ(PIPE_WM_LINETIME(pipe));
> -
>  	for (level = 0; level <= max_level; level++) {
>  		for (i = 0; i < intel_num_planes(intel_crtc); i++)
>  			hw->plane[pipe][i][level] =
> @@ -4338,7 +4333,7 @@ static void skl_pipe_wm_get_hw_state(struct
> drm_crtc *crtc)
>  
>  	hw->dirty_pipes |= drm_crtc_mask(crtc);
>  
> -	active->linetime = hw->wm_linetime[pipe];
> +	active->linetime = I915_READ(PIPE_WM_LINETIME(pipe));
>  
>  	for (level = 0; level <= max_level; level++) {
>  		for (i = 0; i < intel_num_planes(intel_crtc); i++) {