diff mbox series

[v4,3/4] drm/i915/icl: Enable ICL Pipe CSC block

Message ID 1545335981-2338-4-git-send-email-uma.shankar@intel.com (mailing list archive)
State New, archived
Headers show
Series Add support for Gen 11 pipe color features | expand

Commit Message

Shankar, Uma Dec. 20, 2018, 7:59 p.m. UTC
Enable ICL pipe csc hardware. CSC block is enabled
in CSC_MODE register instead of PLANE_COLOR_CTL.

ToDO: Extend the ABI to accept 32 bit coefficient values
instead of 16bit for future platforms.

v2: Addressed Maarten's review comments.

v3: Addressed Matt's review comments. Removed rmw patterns
as suggested by Matt.

v4: Addressed Matt's review comments.

Signed-off-by: Uma Shankar <uma.shankar@intel.com>
---
 drivers/gpu/drm/i915/i915_reg.h    |  4 +++-
 drivers/gpu/drm/i915/intel_color.c | 12 ++++++++++--
 2 files changed, 13 insertions(+), 3 deletions(-)

Comments

Ville Syrjälä Dec. 21, 2018, 5:31 p.m. UTC | #1
On Fri, Dec 21, 2018 at 01:29:40AM +0530, Uma Shankar wrote:
> Enable ICL pipe csc hardware. CSC block is enabled
> in CSC_MODE register instead of PLANE_COLOR_CTL.
> 
> ToDO: Extend the ABI to accept 32 bit coefficient values
> instead of 16bit for future platforms.
> 
> v2: Addressed Maarten's review comments.
> 
> v3: Addressed Matt's review comments. Removed rmw patterns
> as suggested by Matt.
> 
> v4: Addressed Matt's review comments.
> 
> Signed-off-by: Uma Shankar <uma.shankar@intel.com>
> ---
>  drivers/gpu/drm/i915/i915_reg.h    |  4 +++-
>  drivers/gpu/drm/i915/intel_color.c | 12 ++++++++++--
>  2 files changed, 13 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
> index 1852c33..565ef6a 100644
> --- a/drivers/gpu/drm/i915/i915_reg.h
> +++ b/drivers/gpu/drm/i915/i915_reg.h
> @@ -9861,7 +9861,9 @@ enum skl_power_gate {
>  #define _PIPE_A_CSC_COEFF_RV_GV	0x49020
>  #define _PIPE_A_CSC_COEFF_BV	0x49024
>  #define _PIPE_A_CSC_MODE	0x49028
> -#define   CSC_BLACK_SCREEN_OFFSET	(1 << 2)
> +#define	  CSC_ENABLE			(1 << 31)
> +#define	  OUTPUT_CSC_ENABLE		(1 << 30)
> +#define	  CSC_BLACK_SCREEN_OFFSET	(1 << 2)

Bogus space->tab change.

We should probably document which bit is for which platforms.

>  #define   CSC_POSITION_BEFORE_GAMMA	(1 << 1)
>  #define   CSC_MODE_YUV_TO_RGB		(1 << 0)
>  #define _PIPE_A_CSC_PREOFF_HI	0x49030
> diff --git a/drivers/gpu/drm/i915/intel_color.c b/drivers/gpu/drm/i915/intel_color.c
> index e72d8d6..d5b240c 100644
> --- a/drivers/gpu/drm/i915/intel_color.c
> +++ b/drivers/gpu/drm/i915/intel_color.c
> @@ -134,7 +134,11 @@ static void ilk_load_ycbcr_conversion_matrix(struct intel_crtc *crtc)
>  	I915_WRITE(PIPE_CSC_POSTOFF_HI(pipe), POSTOFF_RGB_TO_YUV_HI);
>  	I915_WRITE(PIPE_CSC_POSTOFF_ME(pipe), POSTOFF_RGB_TO_YUV_ME);
>  	I915_WRITE(PIPE_CSC_POSTOFF_LO(pipe), POSTOFF_RGB_TO_YUV_LO);
> -	I915_WRITE(PIPE_CSC_MODE(pipe), 0);
> +
> +	if (INTEL_GEN(dev_priv) >= 10)

11

> +		I915_WRITE(PIPE_CSC_MODE(pipe), OUTPUT_CSC_ENABLE);
> +	else
> +		I915_WRITE(PIPE_CSC_MODE(pipe), 0);
>  }
>  
>  static void ilk_load_csc_matrix(struct intel_crtc_state *crtc_state)
> @@ -242,7 +246,10 @@ static void ilk_load_csc_matrix(struct intel_crtc_state *crtc_state)
>  		I915_WRITE(PIPE_CSC_POSTOFF_ME(pipe), postoff);
>  		I915_WRITE(PIPE_CSC_POSTOFF_LO(pipe), postoff);
>  
> -		I915_WRITE(PIPE_CSC_MODE(pipe), 0);
> +		if (INTEL_GEN(dev_priv) >= 10)

11

> +			I915_WRITE(PIPE_CSC_MODE(pipe), CSC_ENABLE);
> +		else
> +			I915_WRITE(PIPE_CSC_MODE(pipe), 0);
>  	} else {
>  		uint32_t mode = CSC_MODE_YUV_TO_RGB;
>  
> @@ -715,6 +722,7 @@ void intel_color_init(struct intel_crtc *crtc)
>  		dev_priv->display.load_csc_matrix = ilk_load_csc_matrix;
>  		dev_priv->display.load_luts = glk_load_luts;
>  	} else if (IS_ICELAKE(dev_priv)) {
> +		dev_priv->display.load_csc_matrix = ilk_load_csc_matrix;
>  		dev_priv->display.load_luts = icl_load_luts;
>  	} else {
>  		dev_priv->display.load_luts = i9xx_load_luts;
> -- 
> 1.9.1
> 
> _______________________________________________
> Intel-gfx mailing list
> Intel-gfx@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/intel-gfx
Shankar, Uma Dec. 27, 2018, 2:17 p.m. UTC | #2
>-----Original Message-----
>From: Ville Syrjälä [mailto:ville.syrjala@linux.intel.com]
>Sent: Friday, December 21, 2018 11:02 PM
>To: Shankar, Uma <uma.shankar@intel.com>
>Cc: intel-gfx@lists.freedesktop.org; Syrjala, Ville <ville.syrjala@intel.com>;
>Lankhorst, Maarten <maarten.lankhorst@intel.com>
>Subject: Re: [Intel-gfx] [v4 3/4] drm/i915/icl: Enable ICL Pipe CSC block
>
>On Fri, Dec 21, 2018 at 01:29:40AM +0530, Uma Shankar wrote:
>> Enable ICL pipe csc hardware. CSC block is enabled in CSC_MODE
>> register instead of PLANE_COLOR_CTL.
>>
>> ToDO: Extend the ABI to accept 32 bit coefficient values instead of
>> 16bit for future platforms.
>>
>> v2: Addressed Maarten's review comments.
>>
>> v3: Addressed Matt's review comments. Removed rmw patterns as
>> suggested by Matt.
>>
>> v4: Addressed Matt's review comments.
>>
>> Signed-off-by: Uma Shankar <uma.shankar@intel.com>
>> ---
>>  drivers/gpu/drm/i915/i915_reg.h    |  4 +++-
>>  drivers/gpu/drm/i915/intel_color.c | 12 ++++++++++--
>>  2 files changed, 13 insertions(+), 3 deletions(-)
>>
>> diff --git a/drivers/gpu/drm/i915/i915_reg.h
>> b/drivers/gpu/drm/i915/i915_reg.h index 1852c33..565ef6a 100644
>> --- a/drivers/gpu/drm/i915/i915_reg.h
>> +++ b/drivers/gpu/drm/i915/i915_reg.h
>> @@ -9861,7 +9861,9 @@ enum skl_power_gate {
>>  #define _PIPE_A_CSC_COEFF_RV_GV	0x49020
>>  #define _PIPE_A_CSC_COEFF_BV	0x49024
>>  #define _PIPE_A_CSC_MODE	0x49028
>> -#define   CSC_BLACK_SCREEN_OFFSET	(1 << 2)
>> +#define	  CSC_ENABLE			(1 << 31)
>> +#define	  OUTPUT_CSC_ENABLE		(1 << 30)
>> +#define	  CSC_BLACK_SCREEN_OFFSET	(1 << 2)
>
>Bogus space->tab change.
>
>We should probably document which bit is for which platforms.

Will rectify this. Also prefix ICL for CSC and Output CSC fields since they
got introduced from Gen11 onwards.

>
>>  #define   CSC_POSITION_BEFORE_GAMMA	(1 << 1)
>>  #define   CSC_MODE_YUV_TO_RGB		(1 << 0)
>>  #define _PIPE_A_CSC_PREOFF_HI	0x49030
>> diff --git a/drivers/gpu/drm/i915/intel_color.c
>> b/drivers/gpu/drm/i915/intel_color.c
>> index e72d8d6..d5b240c 100644
>> --- a/drivers/gpu/drm/i915/intel_color.c
>> +++ b/drivers/gpu/drm/i915/intel_color.c
>> @@ -134,7 +134,11 @@ static void ilk_load_ycbcr_conversion_matrix(struct
>intel_crtc *crtc)
>>  	I915_WRITE(PIPE_CSC_POSTOFF_HI(pipe), POSTOFF_RGB_TO_YUV_HI);
>>  	I915_WRITE(PIPE_CSC_POSTOFF_ME(pipe),
>POSTOFF_RGB_TO_YUV_ME);
>>  	I915_WRITE(PIPE_CSC_POSTOFF_LO(pipe), POSTOFF_RGB_TO_YUV_LO);
>> -	I915_WRITE(PIPE_CSC_MODE(pipe), 0);
>> +
>> +	if (INTEL_GEN(dev_priv) >= 10)
>
>11

Yeah, will correct  this.

>> +		I915_WRITE(PIPE_CSC_MODE(pipe), OUTPUT_CSC_ENABLE);
>> +	else
>> +		I915_WRITE(PIPE_CSC_MODE(pipe), 0);
>>  }
>>
>>  static void ilk_load_csc_matrix(struct intel_crtc_state *crtc_state)
>> @@ -242,7 +246,10 @@ static void ilk_load_csc_matrix(struct intel_crtc_state
>*crtc_state)
>>  		I915_WRITE(PIPE_CSC_POSTOFF_ME(pipe), postoff);
>>  		I915_WRITE(PIPE_CSC_POSTOFF_LO(pipe), postoff);
>>
>> -		I915_WRITE(PIPE_CSC_MODE(pipe), 0);
>> +		if (INTEL_GEN(dev_priv) >= 10)
>
>11

Will update. Thanks Ville for your comments.

Regards,
Uma Shankar

>
>> +			I915_WRITE(PIPE_CSC_MODE(pipe), CSC_ENABLE);
>> +		else
>> +			I915_WRITE(PIPE_CSC_MODE(pipe), 0);
>>  	} else {
>>  		uint32_t mode = CSC_MODE_YUV_TO_RGB;
>>
>> @@ -715,6 +722,7 @@ void intel_color_init(struct intel_crtc *crtc)
>>  		dev_priv->display.load_csc_matrix = ilk_load_csc_matrix;
>>  		dev_priv->display.load_luts = glk_load_luts;
>>  	} else if (IS_ICELAKE(dev_priv)) {
>> +		dev_priv->display.load_csc_matrix = ilk_load_csc_matrix;
>>  		dev_priv->display.load_luts = icl_load_luts;
>>  	} else {
>>  		dev_priv->display.load_luts = i9xx_load_luts;
>> --
>> 1.9.1
>>
>> _______________________________________________
>> Intel-gfx mailing list
>> Intel-gfx@lists.freedesktop.org
>> https://lists.freedesktop.org/mailman/listinfo/intel-gfx
>
>--
>Ville Syrjälä
>Intel
diff mbox series

Patch

diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 1852c33..565ef6a 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -9861,7 +9861,9 @@  enum skl_power_gate {
 #define _PIPE_A_CSC_COEFF_RV_GV	0x49020
 #define _PIPE_A_CSC_COEFF_BV	0x49024
 #define _PIPE_A_CSC_MODE	0x49028
-#define   CSC_BLACK_SCREEN_OFFSET	(1 << 2)
+#define	  CSC_ENABLE			(1 << 31)
+#define	  OUTPUT_CSC_ENABLE		(1 << 30)
+#define	  CSC_BLACK_SCREEN_OFFSET	(1 << 2)
 #define   CSC_POSITION_BEFORE_GAMMA	(1 << 1)
 #define   CSC_MODE_YUV_TO_RGB		(1 << 0)
 #define _PIPE_A_CSC_PREOFF_HI	0x49030
diff --git a/drivers/gpu/drm/i915/intel_color.c b/drivers/gpu/drm/i915/intel_color.c
index e72d8d6..d5b240c 100644
--- a/drivers/gpu/drm/i915/intel_color.c
+++ b/drivers/gpu/drm/i915/intel_color.c
@@ -134,7 +134,11 @@  static void ilk_load_ycbcr_conversion_matrix(struct intel_crtc *crtc)
 	I915_WRITE(PIPE_CSC_POSTOFF_HI(pipe), POSTOFF_RGB_TO_YUV_HI);
 	I915_WRITE(PIPE_CSC_POSTOFF_ME(pipe), POSTOFF_RGB_TO_YUV_ME);
 	I915_WRITE(PIPE_CSC_POSTOFF_LO(pipe), POSTOFF_RGB_TO_YUV_LO);
-	I915_WRITE(PIPE_CSC_MODE(pipe), 0);
+
+	if (INTEL_GEN(dev_priv) >= 10)
+		I915_WRITE(PIPE_CSC_MODE(pipe), OUTPUT_CSC_ENABLE);
+	else
+		I915_WRITE(PIPE_CSC_MODE(pipe), 0);
 }
 
 static void ilk_load_csc_matrix(struct intel_crtc_state *crtc_state)
@@ -242,7 +246,10 @@  static void ilk_load_csc_matrix(struct intel_crtc_state *crtc_state)
 		I915_WRITE(PIPE_CSC_POSTOFF_ME(pipe), postoff);
 		I915_WRITE(PIPE_CSC_POSTOFF_LO(pipe), postoff);
 
-		I915_WRITE(PIPE_CSC_MODE(pipe), 0);
+		if (INTEL_GEN(dev_priv) >= 10)
+			I915_WRITE(PIPE_CSC_MODE(pipe), CSC_ENABLE);
+		else
+			I915_WRITE(PIPE_CSC_MODE(pipe), 0);
 	} else {
 		uint32_t mode = CSC_MODE_YUV_TO_RGB;
 
@@ -715,6 +722,7 @@  void intel_color_init(struct intel_crtc *crtc)
 		dev_priv->display.load_csc_matrix = ilk_load_csc_matrix;
 		dev_priv->display.load_luts = glk_load_luts;
 	} else if (IS_ICELAKE(dev_priv)) {
+		dev_priv->display.load_csc_matrix = ilk_load_csc_matrix;
 		dev_priv->display.load_luts = icl_load_luts;
 	} else {
 		dev_priv->display.load_luts = i9xx_load_luts;