[Intel-gfx] [PATCH 7/7] drm/i915: Clean up verify_wm_state()

[Lisovskiy, Stanislav]

On Fri, Feb 26, 2021 at 05:32:04PM +0200, Ville Syrjala wrote:
> From: Ville Syrjälä <ville.syrjala at linux.intel.com>
> 
> Get rid of the nonsense cursor special case in verify_wm_state()
> by just iterating through all the planes. And let's use the
> canonical [PLANE:..] style in the debug prints while at it.

Great move!

Reviewed-by: Stanislav Lisovskiy <stanislav.lisovskiy at intel.com>

> 
> Cc: Stanislav Lisovskiy <stanislav.lisovskiy at intel.com>
> Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
> ---
>  drivers/gpu/drm/i915/display/intel_display.c | 88 ++++----------------
>  drivers/gpu/drm/i915/display/intel_display.h |  5 --
>  2 files changed, 17 insertions(+), 76 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
> index e2ef31a93407..e0ecd8eea68d 100644
> --- a/drivers/gpu/drm/i915/display/intel_display.c
> +++ b/drivers/gpu/drm/i915/display/intel_display.c
> @@ -9348,11 +9348,10 @@ static void verify_wm_state(struct intel_crtc *crtc,
>  		struct skl_ddb_entry ddb_uv[I915_MAX_PLANES];
>  		struct skl_pipe_wm wm;
>  	} *hw;
> -	struct skl_pipe_wm *sw_wm;
> -	struct skl_ddb_entry *hw_ddb_entry, *sw_ddb_entry;
> +	const struct skl_pipe_wm *sw_wm = &new_crtc_state->wm.skl.optimal;
> +	int level, max_level = ilk_wm_max_level(dev_priv);
> +	struct intel_plane *plane;
>  	u8 hw_enabled_slices;
> -	const enum pipe pipe = crtc->pipe;
> -	int plane, level, max_level = ilk_wm_max_level(dev_priv);
>  
>  	if (INTEL_GEN(dev_priv) < 9 || !new_crtc_state->hw.active)
>  		return;
> @@ -9362,7 +9361,6 @@ static void verify_wm_state(struct intel_crtc *crtc,
>  		return;
>  
>  	skl_pipe_wm_get_hw_state(crtc, &hw->wm);
> -	sw_wm = &new_crtc_state->wm.skl.optimal;
>  
>  	skl_pipe_ddb_get_hw_state(crtc, hw->ddb_y, hw->ddb_uv);
>  
> @@ -9375,21 +9373,21 @@ static void verify_wm_state(struct intel_crtc *crtc,
>  			dev_priv->dbuf.enabled_slices,
>  			hw_enabled_slices);
>  
> -	/* planes */
> -	for_each_universal_plane(dev_priv, pipe, plane) {
> +	for_each_intel_plane_on_crtc(&dev_priv->drm, crtc, plane) {
> +		const struct skl_ddb_entry *hw_ddb_entry, *sw_ddb_entry;
>  		const struct skl_wm_level *hw_wm_level, *sw_wm_level;
>  
>  		/* Watermarks */
>  		for (level = 0; level <= max_level; level++) {
> -			hw_wm_level = &hw->wm.planes[plane].wm[level];
> -			sw_wm_level = skl_plane_wm_level(sw_wm, plane, level);
> +			hw_wm_level = &hw->wm.planes[plane->id].wm[level];
> +			sw_wm_level = skl_plane_wm_level(sw_wm, plane->id, level);
>  
>  			if (skl_wm_level_equals(hw_wm_level, sw_wm_level))
>  				continue;
>  
>  			drm_err(&dev_priv->drm,
> -				"mismatch in WM pipe %c plane %d level %d (expected e=%d b=%u l=%u, got e=%d b=%u l=%u)\n",
> -				pipe_name(pipe), plane + 1, level,
> +				"[PLANE:%d:%s] mismatch in WM%d (expected e=%d b=%u l=%u, got e=%d b=%u l=%u)\n",
> +				plane->base.base.id, plane->base.name, level,
>  				sw_wm_level->plane_en,
>  				sw_wm_level->plane_res_b,
>  				sw_wm_level->plane_res_l,
> @@ -9398,13 +9396,13 @@ static void verify_wm_state(struct intel_crtc *crtc,
>  				hw_wm_level->plane_res_l);
>  		}
>  
> -		hw_wm_level = &hw->wm.planes[plane].trans_wm;
> -		sw_wm_level = skl_plane_trans_wm(sw_wm, plane);
> +		hw_wm_level = &hw->wm.planes[plane->id].trans_wm;
> +		sw_wm_level = skl_plane_trans_wm(sw_wm, plane->id);
>  
>  		if (!skl_wm_level_equals(hw_wm_level, sw_wm_level)) {
>  			drm_err(&dev_priv->drm,
> -				"mismatch in trans WM pipe %c plane %d (expected e=%d b=%u l=%u, got e=%d b=%u l=%u)\n",
> -				pipe_name(pipe), plane + 1,
> +				"[PLANE:%d:%s] mismatch in trans WM (expected e=%d b=%u l=%u, got e=%d b=%u l=%u)\n",
> +				plane->base.base.id, plane->base.name,
>  				sw_wm_level->plane_en,
>  				sw_wm_level->plane_res_b,
>  				sw_wm_level->plane_res_l,
> @@ -9414,65 +9412,13 @@ static void verify_wm_state(struct intel_crtc *crtc,
>  		}
>  
>  		/* DDB */
> -		hw_ddb_entry = &hw->ddb_y[plane];
> -		sw_ddb_entry = &new_crtc_state->wm.skl.plane_ddb_y[plane];
> +		hw_ddb_entry = &hw->ddb_y[plane->id];
> +		sw_ddb_entry = &new_crtc_state->wm.skl.plane_ddb_y[plane->id];
>  
>  		if (!skl_ddb_entry_equal(hw_ddb_entry, sw_ddb_entry)) {
>  			drm_err(&dev_priv->drm,
> -				"mismatch in DDB state pipe %c plane %d (expected (%u,%u), found (%u,%u))\n",
> -				pipe_name(pipe), plane + 1,
> -				sw_ddb_entry->start, sw_ddb_entry->end,
> -				hw_ddb_entry->start, hw_ddb_entry->end);
> -		}
> -	}
> -
> -	/*
> -	 * cursor
> -	 * If the cursor plane isn't active, we may not have updated it's ddb
> -	 * allocation. In that case since the ddb allocation will be updated
> -	 * once the plane becomes visible, we can skip this check
> -	 */
> -	if (1) {
> -		const struct skl_wm_level *hw_wm_level, *sw_wm_level;
> -
> -		/* Watermarks */
> -		for (level = 0; level <= max_level; level++) {
> -			hw_wm_level = &hw->wm.planes[PLANE_CURSOR].wm[level];
> -			sw_wm_level = skl_plane_wm_level(sw_wm, PLANE_CURSOR, level);
> -			drm_err(&dev_priv->drm,
> -				"mismatch in WM pipe %c cursor level %d (expected e=%d b=%u l=%u, got e=%d b=%u l=%u)\n",
> -				pipe_name(pipe), level,
> -				sw_wm_level->plane_en,
> -				sw_wm_level->plane_res_b,
> -				sw_wm_level->plane_res_l,
> -				hw_wm_level->plane_en,
> -				hw_wm_level->plane_res_b,
> -				hw_wm_level->plane_res_l);
> -		}
> -
> -		hw_wm_level = &hw->wm.planes[PLANE_CURSOR].trans_wm;
> -		sw_wm_level = skl_plane_trans_wm(sw_wm, PLANE_CURSOR);
> -
> -		if (!skl_wm_level_equals(hw_wm_level, sw_wm_level)) {
> -			drm_err(&dev_priv->drm,
> -				"mismatch in trans WM pipe %c cursor (expected e=%d b=%u l=%u, got e=%d b=%u l=%u)\n",
> -				pipe_name(pipe),
> -				sw_wm_level->plane_en,
> -				sw_wm_level->plane_res_b,
> -				sw_wm_level->plane_res_l,
> -				hw_wm_level->plane_en,
> -				hw_wm_level->plane_res_b,
> -				hw_wm_level->plane_res_l);
> -		}
> -
> -		/* DDB */
> -		hw_ddb_entry = &hw->ddb_y[PLANE_CURSOR];
> -		sw_ddb_entry = &new_crtc_state->wm.skl.plane_ddb_y[PLANE_CURSOR];
> -
> -		if (!skl_ddb_entry_equal(hw_ddb_entry, sw_ddb_entry)) {
> -			drm_err(&dev_priv->drm,
> -				"mismatch in DDB state pipe %c cursor (expected (%u,%u), found (%u,%u))\n",
> -				pipe_name(pipe),
> +				"[PLANE:%d:%s] mismatch in DDB (expected (%u,%u), found (%u,%u))\n",
> +				plane->base.base.id, plane->base.name,
>  				sw_ddb_entry->start, sw_ddb_entry->end,
>  				hw_ddb_entry->start, hw_ddb_entry->end);
>  		}
> diff --git a/drivers/gpu/drm/i915/display/intel_display.h b/drivers/gpu/drm/i915/display/intel_display.h
> index 61080152319f..216047233a6d 100644
> --- a/drivers/gpu/drm/i915/display/intel_display.h
> +++ b/drivers/gpu/drm/i915/display/intel_display.h
> @@ -353,11 +353,6 @@ enum phy_fia {
>  	for_each_cpu_transcoder(__dev_priv, __t) \
>  		for_each_if ((__mask) & BIT(__t))
>  
> -#define for_each_universal_plane(__dev_priv, __pipe, __p)		\
> -	for ((__p) = 0;							\
> -	     (__p) < RUNTIME_INFO(__dev_priv)->num_sprites[(__pipe)] + 1;	\
> -	     (__p)++)
> -
>  #define for_each_sprite(__dev_priv, __p, __s)				\
>  	for ((__s) = 0;							\
>  	     (__s) < RUNTIME_INFO(__dev_priv)->num_sprites[(__p)];	\
> -- 
> 2.26.2
>