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* Re: [PATCH v2] drm/i915: Add sprite watermark programming for VLV and CHV
  2014-08-05 17:51 ` [PATCH v2] drm/i915: Add sprite watermark programming for VLV and CHV Gajanan Bhat
@ 2014-08-05 14:39   ` Ville Syrjälä
  2014-08-07 11:33     ` [PATCH V3] " Gajanan Bhat
  0 siblings, 1 reply; 4+ messages in thread
From: Ville Syrjälä @ 2014-08-05 14:39 UTC (permalink / raw)
  To: Gajanan Bhat; +Cc: intel-gfx

On Tue, Aug 05, 2014 at 11:21:38PM +0530, Gajanan Bhat wrote:
> Program DDL register as part of sprite watermark programming for CHV and VLV.
> 
> v2: Rename DRAIN_LATENCY_MAX by DRAIN_LATENCY_MASK
> 
> Signed-off-by: Gajanan Bhat <gajanan.bhat@intel.com>
> ---
>  drivers/gpu/drm/i915/intel_pm.c |   44 +++++++++++++++++++++++++++++++++++++++
>  1 file changed, 44 insertions(+)
> 
> diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
> index 5e81c49..9126295 100644
> --- a/drivers/gpu/drm/i915/intel_pm.c
> +++ b/drivers/gpu/drm/i915/intel_pm.c
> @@ -1416,6 +1416,48 @@ static void valleyview_update_wm(struct drm_crtc *crtc)
>  		intel_set_memory_cxsr(dev_priv, true);
>  }
>  
> +static void valleyview_update_sprite_wm(struct drm_plane *plane,
> +					struct drm_crtc *crtc,
> +					uint32_t sprite_width,
> +					uint32_t sprite_height,
> +					int pixel_size,
> +					bool enabled, bool scaled)
> +{
> +	struct drm_device *dev = crtc->dev;
> +	struct drm_i915_private *dev_priv = dev->dev_private;
> +	int pipe = to_intel_plane(plane)->pipe;
> +	int drain_latency;
> +	int plane_prec;
> +	int sprite_dl;
> +	int prec_mult;
> +
> +	if (to_intel_plane(plane)->plane == 0)
> +		sprite_dl = I915_READ(VLV_DDL(pipe)) & ~DDL_SPRITE0_PRECISION_64 &
> +			    ~(DRAIN_LATENCY_MASK << DDL_SPRITE0_SHIFT);
> +	else
> +		sprite_dl = I915_READ(VLV_DDL(pipe)) & ~DDL_SPRITE1_PRECISION_64 &
> +			    ~(DRAIN_LATENCY_MASK << DDL_SPRITE1_SHIFT);

I was thinking we migth want to parametrize the DDL_SPRITE bits to avoid
these if-else things. So something like this:

#define DDL_SPRITE_PRECISION_64(sprite)	(1<<(15+8*(sprite)))
#define DDL_SPRITE_PRECISION_32(sprite)	(0<<(15+8*(sprite)))
#define DDL_SPRITE_SHIFT(sprite)	(8+8*(sprite))


Also you should again use the more customary form for masking the bits:
I915_READ() & ~(DDL_SPRITE_PRECISION_64 |
		(DRAIN_LATENCY_MASK << DDL_SPRITE_SHIFT));

> +
> +	if (enabled && vlv_compute_drain_latency(crtc, pixel_size, &prec_mult,
> +						 &drain_latency)) {
> +		if (to_intel_plane(plane)->plane == 0) {
> +			plane_prec = (prec_mult == DRAIN_LATENCY_PRECISION_64) ?
> +						   DDL_SPRITE0_PRECISION_64 :
> +						   DDL_SPRITE0_PRECISION_32;
> +			sprite_dl = sprite_dl | plane_prec |
> +				    drain_latency << DDL_SPRITE0_SHIFT;
> +		} else {
> +			plane_prec = (prec_mult == DRAIN_LATENCY_PRECISION_64) ?
> +						   DDL_SPRITE1_PRECISION_64 :
> +						   DDL_SPRITE1_PRECISION_32;
> +			sprite_dl = sprite_dl | plane_prec |
> +				    drain_latency << DDL_SPRITE1_SHIFT;
> +		}
> +	}
> +
> +	I915_WRITE(VLV_DDL(pipe), sprite_dl);
> +}
> +
>  static void g4x_update_wm(struct drm_crtc *crtc)
>  {
>  	struct drm_device *dev = crtc->dev;
> @@ -7134,10 +7176,12 @@ void intel_init_pm(struct drm_device *dev)
>  			dev_priv->display.init_clock_gating = gen8_init_clock_gating;
>  	} else if (IS_CHERRYVIEW(dev)) {
>  		dev_priv->display.update_wm = valleyview_update_wm;
> +		dev_priv->display.update_sprite_wm = valleyview_update_sprite_wm;
>  		dev_priv->display.init_clock_gating =
>  			cherryview_init_clock_gating;
>  	} else if (IS_VALLEYVIEW(dev)) {
>  		dev_priv->display.update_wm = valleyview_update_wm;
> +		dev_priv->display.update_sprite_wm = valleyview_update_sprite_wm;
>  		dev_priv->display.init_clock_gating =
>  			valleyview_init_clock_gating;
>  	} else if (IS_PINEVIEW(dev)) {
> -- 
> 1.7.9.5
> 
> _______________________________________________
> Intel-gfx mailing list
> Intel-gfx@lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/intel-gfx

-- 
Ville Syrjälä
Intel OTC

^ permalink raw reply	[flat|nested] 4+ messages in thread

* [PATCH v2] drm/i915: Add sprite watermark programming for VLV and CHV
       [not found] <1405513395-7014-4-git-send-email-gajanan.bhat@intel.com>
@ 2014-08-05 17:51 ` Gajanan Bhat
  2014-08-05 14:39   ` Ville Syrjälä
  0 siblings, 1 reply; 4+ messages in thread
From: Gajanan Bhat @ 2014-08-05 17:51 UTC (permalink / raw)
  To: intel-gfx

Program DDL register as part of sprite watermark programming for CHV and VLV.

v2: Rename DRAIN_LATENCY_MAX by DRAIN_LATENCY_MASK

Signed-off-by: Gajanan Bhat <gajanan.bhat@intel.com>
---
 drivers/gpu/drm/i915/intel_pm.c |   44 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 44 insertions(+)

diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 5e81c49..9126295 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -1416,6 +1416,48 @@ static void valleyview_update_wm(struct drm_crtc *crtc)
 		intel_set_memory_cxsr(dev_priv, true);
 }
 
+static void valleyview_update_sprite_wm(struct drm_plane *plane,
+					struct drm_crtc *crtc,
+					uint32_t sprite_width,
+					uint32_t sprite_height,
+					int pixel_size,
+					bool enabled, bool scaled)
+{
+	struct drm_device *dev = crtc->dev;
+	struct drm_i915_private *dev_priv = dev->dev_private;
+	int pipe = to_intel_plane(plane)->pipe;
+	int drain_latency;
+	int plane_prec;
+	int sprite_dl;
+	int prec_mult;
+
+	if (to_intel_plane(plane)->plane == 0)
+		sprite_dl = I915_READ(VLV_DDL(pipe)) & ~DDL_SPRITE0_PRECISION_64 &
+			    ~(DRAIN_LATENCY_MASK << DDL_SPRITE0_SHIFT);
+	else
+		sprite_dl = I915_READ(VLV_DDL(pipe)) & ~DDL_SPRITE1_PRECISION_64 &
+			    ~(DRAIN_LATENCY_MASK << DDL_SPRITE1_SHIFT);
+
+	if (enabled && vlv_compute_drain_latency(crtc, pixel_size, &prec_mult,
+						 &drain_latency)) {
+		if (to_intel_plane(plane)->plane == 0) {
+			plane_prec = (prec_mult == DRAIN_LATENCY_PRECISION_64) ?
+						   DDL_SPRITE0_PRECISION_64 :
+						   DDL_SPRITE0_PRECISION_32;
+			sprite_dl = sprite_dl | plane_prec |
+				    drain_latency << DDL_SPRITE0_SHIFT;
+		} else {
+			plane_prec = (prec_mult == DRAIN_LATENCY_PRECISION_64) ?
+						   DDL_SPRITE1_PRECISION_64 :
+						   DDL_SPRITE1_PRECISION_32;
+			sprite_dl = sprite_dl | plane_prec |
+				    drain_latency << DDL_SPRITE1_SHIFT;
+		}
+	}
+
+	I915_WRITE(VLV_DDL(pipe), sprite_dl);
+}
+
 static void g4x_update_wm(struct drm_crtc *crtc)
 {
 	struct drm_device *dev = crtc->dev;
@@ -7134,10 +7176,12 @@ void intel_init_pm(struct drm_device *dev)
 			dev_priv->display.init_clock_gating = gen8_init_clock_gating;
 	} else if (IS_CHERRYVIEW(dev)) {
 		dev_priv->display.update_wm = valleyview_update_wm;
+		dev_priv->display.update_sprite_wm = valleyview_update_sprite_wm;
 		dev_priv->display.init_clock_gating =
 			cherryview_init_clock_gating;
 	} else if (IS_VALLEYVIEW(dev)) {
 		dev_priv->display.update_wm = valleyview_update_wm;
+		dev_priv->display.update_sprite_wm = valleyview_update_sprite_wm;
 		dev_priv->display.init_clock_gating =
 			valleyview_init_clock_gating;
 	} else if (IS_PINEVIEW(dev)) {
-- 
1.7.9.5

^ permalink raw reply related	[flat|nested] 4+ messages in thread

* Re: [PATCH V3] drm/i915: Add sprite watermark programming for VLV and CHV
  2014-08-07 11:33     ` [PATCH V3] " Gajanan Bhat
@ 2014-08-07  8:26       ` Ville Syrjälä
  0 siblings, 0 replies; 4+ messages in thread
From: Ville Syrjälä @ 2014-08-07  8:26 UTC (permalink / raw)
  To: Gajanan Bhat; +Cc: intel-gfx

On Thu, Aug 07, 2014 at 05:03:30PM +0530, Gajanan Bhat wrote:
> Program DDL register as part of sprite watermark programming for CHV and VLV.
> 
> v2: Rename DRAIN_LATENCY_MAX by DRAIN_LATENCY_MASK
> 
> v3: Addressed review comments by Ville
>     - Changed Sprite DDL definitions to more generic to avoid multiple if-else
>     - Changed bit masking to customary form
>     - Changed to bitwise shorthand operator for sprite_dl assignment
> 
> Signed-off-by: Gajanan Bhat <gajanan.bhat@intel.com>

Looks good.

Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>

> ---
>  drivers/gpu/drm/i915/i915_reg.h |    9 +++------
>  drivers/gpu/drm/i915/intel_pm.c |   33 +++++++++++++++++++++++++++++++++
>  2 files changed, 36 insertions(+), 6 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
> index 08916df..f8aaf0b 100644
> --- a/drivers/gpu/drm/i915/i915_reg.h
> +++ b/drivers/gpu/drm/i915/i915_reg.h
> @@ -4000,12 +4000,9 @@ enum punit_power_well {
>  #define DDL_CURSOR_PRECISION_64		(1<<31)
>  #define DDL_CURSOR_PRECISION_32		(0<<31)
>  #define DDL_CURSOR_SHIFT		24
> -#define DDL_SPRITE1_PRECISION_64	(1<<23)
> -#define DDL_SPRITE1_PRECISION_32	(0<<23)
> -#define DDL_SPRITE1_SHIFT		16
> -#define DDL_SPRITE0_PRECISION_64	(1<<15)
> -#define DDL_SPRITE0_PRECISION_32	(0<<15)
> -#define DDL_SPRITE0_SHIFT		8
> +#define DDL_SPRITE_PRECISION_64(sprite)	(1<<(15+8*(sprite)))
> +#define DDL_SPRITE_PRECISION_32(sprite)	(0<<(15+8*(sprite)))
> +#define DDL_SPRITE_SHIFT(sprite)	(8+8*(sprite))
>  #define DDL_PLANE_PRECISION_64		(1<<7)
>  #define DDL_PLANE_PRECISION_32		(0<<7)
>  #define DDL_PLANE_SHIFT			0
> diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
> index 86d6048..974aeea 100644
> --- a/drivers/gpu/drm/i915/intel_pm.c
> +++ b/drivers/gpu/drm/i915/intel_pm.c
> @@ -1500,6 +1500,37 @@ static void cherryview_update_wm(struct drm_crtc *crtc)
>  		intel_set_memory_cxsr(dev_priv, true);
>  }
>  
> +static void valleyview_update_sprite_wm(struct drm_plane *plane,
> +					struct drm_crtc *crtc,
> +					uint32_t sprite_width,
> +					uint32_t sprite_height,
> +					int pixel_size,
> +					bool enabled, bool scaled)
> +{
> +	struct drm_device *dev = crtc->dev;
> +	struct drm_i915_private *dev_priv = dev->dev_private;
> +	int pipe = to_intel_plane(plane)->pipe;
> +	int sprite = to_intel_plane(plane)->plane;
> +	int drain_latency;
> +	int plane_prec;
> +	int sprite_dl;
> +	int prec_mult;
> +
> +	sprite_dl = I915_READ(VLV_DDL(pipe)) & ~(DDL_SPRITE_PRECISION_64(sprite) |
> +		    (DRAIN_LATENCY_MASK << DDL_SPRITE_SHIFT(sprite)));
> +
> +	if (enabled && vlv_compute_drain_latency(crtc, pixel_size, &prec_mult,
> +						 &drain_latency)) {
> +		plane_prec = (prec_mult == DRAIN_LATENCY_PRECISION_64) ?
> +					   DDL_SPRITE_PRECISION_64(sprite) :
> +					   DDL_SPRITE_PRECISION_32(sprite);
> +		sprite_dl |= plane_prec |
> +			     (drain_latency << DDL_SPRITE_SHIFT(sprite));
> +	}
> +
> +	I915_WRITE(VLV_DDL(pipe), sprite_dl);
> +}
> +
>  static void g4x_update_wm(struct drm_crtc *crtc)
>  {
>  	struct drm_device *dev = crtc->dev;
> @@ -7231,10 +7262,12 @@ void intel_init_pm(struct drm_device *dev)
>  			dev_priv->display.init_clock_gating = gen8_init_clock_gating;
>  	} else if (IS_CHERRYVIEW(dev)) {
>  		dev_priv->display.update_wm = cherryview_update_wm;
> +		dev_priv->display.update_sprite_wm = valleyview_update_sprite_wm;
>  		dev_priv->display.init_clock_gating =
>  			cherryview_init_clock_gating;
>  	} else if (IS_VALLEYVIEW(dev)) {
>  		dev_priv->display.update_wm = valleyview_update_wm;
> +		dev_priv->display.update_sprite_wm = valleyview_update_sprite_wm;
>  		dev_priv->display.init_clock_gating =
>  			valleyview_init_clock_gating;
>  	} else if (IS_PINEVIEW(dev)) {
> -- 
> 1.7.9.5
> 
> _______________________________________________
> Intel-gfx mailing list
> Intel-gfx@lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/intel-gfx

-- 
Ville Syrjälä
Intel OTC

^ permalink raw reply	[flat|nested] 4+ messages in thread

* [PATCH V3] drm/i915: Add sprite watermark programming for VLV and CHV
  2014-08-05 14:39   ` Ville Syrjälä
@ 2014-08-07 11:33     ` Gajanan Bhat
  2014-08-07  8:26       ` Ville Syrjälä
  0 siblings, 1 reply; 4+ messages in thread
From: Gajanan Bhat @ 2014-08-07 11:33 UTC (permalink / raw)
  To: intel-gfx

Program DDL register as part of sprite watermark programming for CHV and VLV.

v2: Rename DRAIN_LATENCY_MAX by DRAIN_LATENCY_MASK

v3: Addressed review comments by Ville
    - Changed Sprite DDL definitions to more generic to avoid multiple if-else
    - Changed bit masking to customary form
    - Changed to bitwise shorthand operator for sprite_dl assignment

Signed-off-by: Gajanan Bhat <gajanan.bhat@intel.com>
---
 drivers/gpu/drm/i915/i915_reg.h |    9 +++------
 drivers/gpu/drm/i915/intel_pm.c |   33 +++++++++++++++++++++++++++++++++
 2 files changed, 36 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 08916df..f8aaf0b 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -4000,12 +4000,9 @@ enum punit_power_well {
 #define DDL_CURSOR_PRECISION_64		(1<<31)
 #define DDL_CURSOR_PRECISION_32		(0<<31)
 #define DDL_CURSOR_SHIFT		24
-#define DDL_SPRITE1_PRECISION_64	(1<<23)
-#define DDL_SPRITE1_PRECISION_32	(0<<23)
-#define DDL_SPRITE1_SHIFT		16
-#define DDL_SPRITE0_PRECISION_64	(1<<15)
-#define DDL_SPRITE0_PRECISION_32	(0<<15)
-#define DDL_SPRITE0_SHIFT		8
+#define DDL_SPRITE_PRECISION_64(sprite)	(1<<(15+8*(sprite)))
+#define DDL_SPRITE_PRECISION_32(sprite)	(0<<(15+8*(sprite)))
+#define DDL_SPRITE_SHIFT(sprite)	(8+8*(sprite))
 #define DDL_PLANE_PRECISION_64		(1<<7)
 #define DDL_PLANE_PRECISION_32		(0<<7)
 #define DDL_PLANE_SHIFT			0
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 86d6048..974aeea 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -1500,6 +1500,37 @@ static void cherryview_update_wm(struct drm_crtc *crtc)
 		intel_set_memory_cxsr(dev_priv, true);
 }
 
+static void valleyview_update_sprite_wm(struct drm_plane *plane,
+					struct drm_crtc *crtc,
+					uint32_t sprite_width,
+					uint32_t sprite_height,
+					int pixel_size,
+					bool enabled, bool scaled)
+{
+	struct drm_device *dev = crtc->dev;
+	struct drm_i915_private *dev_priv = dev->dev_private;
+	int pipe = to_intel_plane(plane)->pipe;
+	int sprite = to_intel_plane(plane)->plane;
+	int drain_latency;
+	int plane_prec;
+	int sprite_dl;
+	int prec_mult;
+
+	sprite_dl = I915_READ(VLV_DDL(pipe)) & ~(DDL_SPRITE_PRECISION_64(sprite) |
+		    (DRAIN_LATENCY_MASK << DDL_SPRITE_SHIFT(sprite)));
+
+	if (enabled && vlv_compute_drain_latency(crtc, pixel_size, &prec_mult,
+						 &drain_latency)) {
+		plane_prec = (prec_mult == DRAIN_LATENCY_PRECISION_64) ?
+					   DDL_SPRITE_PRECISION_64(sprite) :
+					   DDL_SPRITE_PRECISION_32(sprite);
+		sprite_dl |= plane_prec |
+			     (drain_latency << DDL_SPRITE_SHIFT(sprite));
+	}
+
+	I915_WRITE(VLV_DDL(pipe), sprite_dl);
+}
+
 static void g4x_update_wm(struct drm_crtc *crtc)
 {
 	struct drm_device *dev = crtc->dev;
@@ -7231,10 +7262,12 @@ void intel_init_pm(struct drm_device *dev)
 			dev_priv->display.init_clock_gating = gen8_init_clock_gating;
 	} else if (IS_CHERRYVIEW(dev)) {
 		dev_priv->display.update_wm = cherryview_update_wm;
+		dev_priv->display.update_sprite_wm = valleyview_update_sprite_wm;
 		dev_priv->display.init_clock_gating =
 			cherryview_init_clock_gating;
 	} else if (IS_VALLEYVIEW(dev)) {
 		dev_priv->display.update_wm = valleyview_update_wm;
+		dev_priv->display.update_sprite_wm = valleyview_update_sprite_wm;
 		dev_priv->display.init_clock_gating =
 			valleyview_init_clock_gating;
 	} else if (IS_PINEVIEW(dev)) {
-- 
1.7.9.5

^ permalink raw reply related	[flat|nested] 4+ messages in thread

end of thread, other threads:[~2014-08-07  8:26 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
     [not found] <1405513395-7014-4-git-send-email-gajanan.bhat@intel.com>
2014-08-05 17:51 ` [PATCH v2] drm/i915: Add sprite watermark programming for VLV and CHV Gajanan Bhat
2014-08-05 14:39   ` Ville Syrjälä
2014-08-07 11:33     ` [PATCH V3] " Gajanan Bhat
2014-08-07  8:26       ` Ville Syrjälä

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