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From: "Lisovskiy, Stanislav" <stanislav.lisovskiy@intel.com>
To: Ville Syrjala <ville.syrjala@linux.intel.com>
Cc: intel-gfx@lists.freedesktop.org
Subject: Re: [Intel-gfx] [PATCH v2 2/5] drm/i915: Make skl+ universal plane registers unlocked
Date: Thu, 24 Feb 2022 16:38:20 +0200	[thread overview]
Message-ID: <20220224143820.GB19081@intel.com> (raw)
In-Reply-To: <20220210062403.18690-3-ville.syrjala@linux.intel.com>

On Thu, Feb 10, 2022 at 08:24:00AM +0200, Ville Syrjala wrote:
> From: Ville Syrjälä <ville.syrjala@linux.intel.com>
> 
> Drop the locks around most universal plane register writes.
> The lock isn't needed since each plane's register are neatly
> contained on their own cachelines.
> 
> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>

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

> ---
>  .../drm/i915/display/skl_universal_plane.c    | 35 -------------------
>  1 file changed, 35 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/display/skl_universal_plane.c b/drivers/gpu/drm/i915/display/skl_universal_plane.c
> index 5b1b089e045d..db9e31c12169 100644
> --- a/drivers/gpu/drm/i915/display/skl_universal_plane.c
> +++ b/drivers/gpu/drm/i915/display/skl_universal_plane.c
> @@ -615,16 +615,11 @@ skl_plane_disable_arm(struct intel_plane *plane,
>  	struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
>  	enum plane_id plane_id = plane->id;
>  	enum pipe pipe = plane->pipe;
> -	unsigned long irqflags;
> -
> -	spin_lock_irqsave(&dev_priv->uncore.lock, irqflags);
>  
>  	skl_write_plane_wm(plane, crtc_state);
>  
>  	intel_de_write_fw(dev_priv, PLANE_CTL(pipe, plane_id), 0);
>  	intel_de_write_fw(dev_priv, PLANE_SURF(pipe, plane_id), 0);
> -
> -	spin_unlock_irqrestore(&dev_priv->uncore.lock, irqflags);
>  }
>  
>  static void
> @@ -634,9 +629,6 @@ icl_plane_disable_arm(struct intel_plane *plane,
>  	struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
>  	enum plane_id plane_id = plane->id;
>  	enum pipe pipe = plane->pipe;
> -	unsigned long irqflags;
> -
> -	spin_lock_irqsave(&dev_priv->uncore.lock, irqflags);
>  
>  	if (icl_is_hdr_plane(dev_priv, plane_id))
>  		intel_de_write_fw(dev_priv, PLANE_CUS_CTL(pipe, plane_id), 0);
> @@ -646,8 +638,6 @@ icl_plane_disable_arm(struct intel_plane *plane,
>  	intel_psr2_disable_plane_sel_fetch(plane, crtc_state);
>  	intel_de_write_fw(dev_priv, PLANE_CTL(pipe, plane_id), 0);
>  	intel_de_write_fw(dev_priv, PLANE_SURF(pipe, plane_id), 0);
> -
> -	spin_unlock_irqrestore(&dev_priv->uncore.lock, irqflags);
>  }
>  
>  static bool
> @@ -1106,7 +1096,6 @@ skl_plane_update_noarm(struct intel_plane *plane,
>  	int crtc_y = plane_state->uapi.dst.y1;
>  	u32 src_w = drm_rect_width(&plane_state->uapi.src) >> 16;
>  	u32 src_h = drm_rect_height(&plane_state->uapi.src) >> 16;
> -	unsigned long irqflags;
>  
>  	/* The scaler will handle the output position */
>  	if (plane_state->scaler_id >= 0) {
> @@ -1114,8 +1103,6 @@ skl_plane_update_noarm(struct intel_plane *plane,
>  		crtc_y = 0;
>  	}
>  
> -	spin_lock_irqsave(&dev_priv->uncore.lock, irqflags);
> -
>  	intel_de_write_fw(dev_priv, PLANE_STRIDE(pipe, plane_id),
>  			  PLANE_STRIDE_(stride));
>  	intel_de_write_fw(dev_priv, PLANE_POS(pipe, plane_id),
> @@ -1124,8 +1111,6 @@ skl_plane_update_noarm(struct intel_plane *plane,
>  			  PLANE_HEIGHT(src_h - 1) | PLANE_WIDTH(src_w - 1));
>  
>  	skl_write_plane_wm(plane, crtc_state);
> -
> -	spin_unlock_irqrestore(&dev_priv->uncore.lock, irqflags);
>  }
>  
>  static void
> @@ -1139,7 +1124,6 @@ skl_plane_update_arm(struct intel_plane *plane,
>  	u32 x = plane_state->view.color_plane[0].x;
>  	u32 y = plane_state->view.color_plane[0].y;
>  	u32 plane_ctl, plane_color_ctl = 0;
> -	unsigned long irqflags;
>  
>  	plane_ctl = plane_state->ctl |
>  		skl_plane_ctl_crtc(crtc_state);
> @@ -1148,8 +1132,6 @@ skl_plane_update_arm(struct intel_plane *plane,
>  		plane_color_ctl = plane_state->color_ctl |
>  			glk_plane_color_ctl_crtc(crtc_state);
>  
> -	spin_lock_irqsave(&dev_priv->uncore.lock, irqflags);
> -
>  	intel_de_write_fw(dev_priv, PLANE_KEYVAL(pipe, plane_id), skl_plane_keyval(plane_state));
>  	intel_de_write_fw(dev_priv, PLANE_KEYMSK(pipe, plane_id), skl_plane_keymsk(plane_state));
>  	intel_de_write_fw(dev_priv, PLANE_KEYMAX(pipe, plane_id), skl_plane_keymax(plane_state));
> @@ -1185,8 +1167,6 @@ skl_plane_update_arm(struct intel_plane *plane,
>  	intel_de_write_fw(dev_priv, PLANE_CTL(pipe, plane_id), plane_ctl);
>  	intel_de_write_fw(dev_priv, PLANE_SURF(pipe, plane_id),
>  			  skl_plane_surf(plane_state, 0));
> -
> -	spin_unlock_irqrestore(&dev_priv->uncore.lock, irqflags);
>  }
>  
>  static void
> @@ -1207,7 +1187,6 @@ icl_plane_update_noarm(struct intel_plane *plane,
>  	int src_w = drm_rect_width(&plane_state->uapi.src) >> 16;
>  	int src_h = drm_rect_height(&plane_state->uapi.src) >> 16;
>  	u32 plane_color_ctl;
> -	unsigned long irqflags;
>  
>  	plane_color_ctl = plane_state->color_ctl |
>  		glk_plane_color_ctl_crtc(crtc_state);
> @@ -1218,8 +1197,6 @@ icl_plane_update_noarm(struct intel_plane *plane,
>  		crtc_y = 0;
>  	}
>  
> -	spin_lock_irqsave(&dev_priv->uncore.lock, irqflags);
> -
>  	intel_de_write_fw(dev_priv, PLANE_STRIDE(pipe, plane_id),
>  			  PLANE_STRIDE_(stride));
>  	intel_de_write_fw(dev_priv, PLANE_POS(pipe, plane_id),
> @@ -1263,8 +1240,6 @@ icl_plane_update_noarm(struct intel_plane *plane,
>  		icl_plane_csc_load_black(plane);
>  
>  	intel_psr2_program_plane_sel_fetch(plane, crtc_state, plane_state, color_plane);
> -
> -	spin_unlock_irqrestore(&dev_priv->uncore.lock, irqflags);
>  }
>  
>  static void
> @@ -1277,13 +1252,10 @@ icl_plane_update_arm(struct intel_plane *plane,
>  	enum pipe pipe = plane->pipe;
>  	int color_plane = icl_plane_color_plane(plane_state);
>  	u32 plane_ctl;
> -	unsigned long irqflags;
>  
>  	plane_ctl = plane_state->ctl |
>  		skl_plane_ctl_crtc(crtc_state);
>  
> -	spin_lock_irqsave(&dev_priv->uncore.lock, irqflags);
> -
>  	/*
>  	 * Enable the scaler before the plane so that we don't
>  	 * get a catastrophic underrun even if the two operations
> @@ -1302,8 +1274,6 @@ icl_plane_update_arm(struct intel_plane *plane,
>  	intel_de_write_fw(dev_priv, PLANE_CTL(pipe, plane_id), plane_ctl);
>  	intel_de_write_fw(dev_priv, PLANE_SURF(pipe, plane_id),
>  			  skl_plane_surf(plane_state, color_plane));
> -
> -	spin_unlock_irqrestore(&dev_priv->uncore.lock, irqflags);
>  }
>  
>  static void
> @@ -1313,7 +1283,6 @@ skl_plane_async_flip(struct intel_plane *plane,
>  		     bool async_flip)
>  {
>  	struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
> -	unsigned long irqflags;
>  	enum plane_id plane_id = plane->id;
>  	enum pipe pipe = plane->pipe;
>  	u32 plane_ctl = plane_state->ctl;
> @@ -1323,13 +1292,9 @@ skl_plane_async_flip(struct intel_plane *plane,
>  	if (async_flip)
>  		plane_ctl |= PLANE_CTL_ASYNC_FLIP;
>  
> -	spin_lock_irqsave(&dev_priv->uncore.lock, irqflags);
> -
>  	intel_de_write_fw(dev_priv, PLANE_CTL(pipe, plane_id), plane_ctl);
>  	intel_de_write_fw(dev_priv, PLANE_SURF(pipe, plane_id),
>  			  skl_plane_surf(plane_state, 0));
> -
> -	spin_unlock_irqrestore(&dev_priv->uncore.lock, irqflags);
>  }
>  
>  static bool intel_format_is_p01x(u32 format)
> -- 
> 2.34.1
> 

  reply	other threads:[~2022-02-24 14:38 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-02-10  6:23 [Intel-gfx] [PATCH v2 0/5] drm/i915: Futher optimize plane updates Ville Syrjala
2022-02-10  6:23 ` [Intel-gfx] [PATCH v2 1/5] drm/i915: Optimize icl+ universal plane programming Ville Syrjala
2022-02-21 11:21   ` Lisovskiy, Stanislav
2022-02-10  6:24 ` [Intel-gfx] [PATCH v2 2/5] drm/i915: Make skl+ universal plane registers unlocked Ville Syrjala
2022-02-24 14:38   ` Lisovskiy, Stanislav [this message]
2022-02-10  6:24 ` [Intel-gfx] [PATCH v2 3/5] drm/i915: Make cursor " Ville Syrjala
2022-02-11  9:26   ` [Intel-gfx] [PATCH v3 " Ville Syrjala
2022-02-24 14:37     ` Lisovskiy, Stanislav
2022-02-24 17:00       ` Ville Syrjälä
2022-02-10  6:24 ` [Intel-gfx] [PATCH v2 4/5] drm/i915: Make most pre-skl primary " Ville Syrjala
2022-02-21 11:19   ` Lisovskiy, Stanislav
2022-02-10  6:24 ` [Intel-gfx] [PATCH v2 5/5] drm/i915: Make pre-skl sprite " Ville Syrjala
2022-02-21 11:18   ` Lisovskiy, Stanislav
2022-02-10  7:01 ` [Intel-gfx] ✓ Fi.CI.BAT: success for drm/i915: Futher optimize plane updates (rev3) Patchwork
2022-02-10  8:15 ` [Intel-gfx] ✗ Fi.CI.IGT: failure " Patchwork
2022-02-10 12:08 ` [Intel-gfx] ✓ Fi.CI.BAT: success for drm/i915: Futher optimize plane updates (rev4) Patchwork
2022-02-10 14:33 ` [Intel-gfx] ✗ Fi.CI.IGT: failure " Patchwork
2022-02-11 18:29 ` [Intel-gfx] ✓ Fi.CI.BAT: success for drm/i915: Futher optimize plane updates (rev5) Patchwork
2022-02-11 22:26 ` [Intel-gfx] ✗ Fi.CI.IGT: failure " Patchwork

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