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From: Matt Roper <matthew.d.roper@intel.com>
To: Ville Syrjala <ville.syrjala@linux.intel.com>
Cc: intel-gfx@lists.freedesktop.org
Subject: Re: [PATCH 12/13] drm/i915: Turn off pipe CSC when it's not needed
Date: Thu, 17 Jan 2019 10:54:26 -0800	[thread overview]
Message-ID: <20190117185426.GM4563@mdroper-desk.amr.corp.intel.com> (raw)
In-Reply-To: <20190111170823.4441-13-ville.syrjala@linux.intel.com>

On Fri, Jan 11, 2019 at 07:08:22PM +0200, Ville Syrjala wrote:
> From: Ville Syrjälä <ville.syrjala@linux.intel.com>
> 
> As with pipe gamma we can avoid the potential precision loss from
> the pipe csc unit when there is no need to use it. And again
> we need the same logic for updating the planes.
> 
> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>

Reviewed-by: Matt Roper <matthew.d.roper@intel.com>

> ---
>  drivers/gpu/drm/i915/intel_color.c | 10 ++++++++--
>  1 file changed, 8 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/intel_color.c b/drivers/gpu/drm/i915/intel_color.c
> index a8b7428a64bf..789b04bb51d2 100644
> --- a/drivers/gpu/drm/i915/intel_color.c
> +++ b/drivers/gpu/drm/i915/intel_color.c
> @@ -659,7 +659,8 @@ intel_color_add_affected_planes(struct intel_crtc_state *new_crtc_state)
>  		intel_atomic_get_old_crtc_state(state, crtc);
>  	struct intel_plane *plane;
>  
> -	if (new_crtc_state->gamma_enable == old_crtc_state->gamma_enable)
> +	if (new_crtc_state->gamma_enable == old_crtc_state->gamma_enable &&
> +	    new_crtc_state->csc_enable == old_crtc_state->csc_enable)
>  		return 0;
>  
>  	for_each_intel_plane_on_crtc(&dev_priv->drm, crtc, plane) {
> @@ -684,6 +685,7 @@ int intel_color_check(struct intel_crtc_state *crtc_state)
>  	const struct drm_property_blob *gamma_lut = crtc_state->base.gamma_lut;
>  	const struct drm_property_blob *degamma_lut = crtc_state->base.degamma_lut;
>  	size_t gamma_length, degamma_length;
> +	bool limited_color_range = false;
>  	int ret;
>  
>  	degamma_length = INTEL_INFO(dev_priv)->color.degamma_lut_size;
> @@ -693,7 +695,11 @@ int intel_color_check(struct intel_crtc_state *crtc_state)
>  
>  	if (INTEL_GEN(dev_priv) >= 9 ||
>  	    IS_BROADWELL(dev_priv) || IS_HASWELL(dev_priv))
> -		crtc_state->csc_enable = true;
> +		limited_color_range = crtc_state->limited_color_range;
> +
> +	crtc_state->csc_enable =
> +		crtc_state->output_format != INTEL_OUTPUT_FORMAT_RGB ||
> +		crtc_state->base.ctm || limited_color_range;
>  
>  	ret = intel_color_add_affected_planes(crtc_state);
>  	if (ret)
> -- 
> 2.19.2
> 

-- 
Matt Roper
Graphics Software Engineer
IoTG Platform Enabling & Development
Intel Corporation
(916) 356-2795
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

  parent reply	other threads:[~2019-01-17 18:54 UTC|newest]

Thread overview: 52+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-01-11 17:08 [PATCH 00/13] Enable/disable gamma/csc dynamically and fix C8 Ville Syrjala
2019-01-11 17:08 ` [PATCH 01/13] drm/i915: Clean up intel_plane_atomic_check_with_state() Ville Syrjala
2019-01-12  0:41   ` Matt Roper
2019-01-16 16:08   ` Shankar, Uma
2019-01-11 17:08 ` [PATCH 02/13] drm/i915: Split the gamma/csc enable bits from the plane_ctl() function Ville Syrjala
2019-01-12  0:41   ` Matt Roper
2019-01-14 17:11     ` Ville Syrjälä
2019-01-14 19:11       ` Ville Syrjälä
2019-01-16 17:11         ` Shankar, Uma
2019-01-17 16:34           ` Ville Syrjälä
2019-01-11 17:08 ` [PATCH 03/13] drm/i915: Precompute gamma_mode Ville Syrjala
2019-01-12  0:41   ` Matt Roper
2019-01-16 17:18     ` Shankar, Uma
2019-01-11 17:08 ` [PATCH 04/13] drm/i915: Constify the state arguments to the color management stuff Ville Syrjala
2019-01-12  0:42   ` Matt Roper
2019-01-16 17:21     ` Shankar, Uma
2019-01-11 17:08 ` [PATCH 05/13] drm/i915: Pull GAMMA_MODE write out from haswell_load_luts() Ville Syrjala
2019-01-12  0:57   ` Matt Roper
2019-01-16 17:26     ` Shankar, Uma
2019-01-11 17:08 ` [PATCH 06/13] drm/i915: Split color mgmt based on single vs. double buffered registers Ville Syrjala
2019-01-15  0:56   ` Matt Roper
2019-01-16 18:22     ` Shankar, Uma
2019-01-11 17:08 ` [PATCH 07/13] drm/i915: Move LUT programming to happen after vblank waits Ville Syrjala
2019-01-16 17:38   ` Matt Roper
2019-01-16 18:02     ` Ville Syrjälä
2019-01-17 15:00     ` Ville Syrjälä
2019-01-11 17:08 ` [PATCH 08/13] drm/i915: Populate gamma_mode for all platforms Ville Syrjala
2019-01-16 18:31   ` Matt Roper
2019-01-16 18:58     ` Ville Syrjälä
2019-01-16 19:51       ` Ville Syrjälä
2019-01-29 15:59         ` Ville Syrjälä
2019-01-11 17:08 ` [PATCH 09/13] drm/i915: Track pipe gamma enable/disable in crtc state Ville Syrjala
2019-01-16 19:36   ` Matt Roper
2019-01-17  5:14     ` Shankar, Uma
2019-01-17 14:57       ` Ville Syrjälä
2019-01-11 17:08 ` [PATCH 10/13] drm/i915: Track pipe csc enable " Ville Syrjala
2019-01-16 19:43   ` Matt Roper
2019-01-17  5:17     ` Shankar, Uma
2019-01-11 17:08 ` [PATCH 11/13] drm/i915: Turn off pipe gamma when it's not needed Ville Syrjala
2019-01-17  5:32   ` Shankar, Uma
2019-01-17 18:40   ` Matt Roper
2019-01-17 18:48     ` Ville Syrjälä
2019-01-11 17:08 ` [PATCH 12/13] drm/i915: Turn off pipe CSC " Ville Syrjala
2019-01-17  5:37   ` Shankar, Uma
2019-01-17 18:54   ` Matt Roper [this message]
2019-01-11 17:08 ` [PATCH 13/13] drm/i915: Disable pipe gamma when C8 pixel format is used Ville Syrjala
2019-01-17  5:58   ` Shankar, Uma
2019-01-17 19:13   ` Matt Roper
2019-01-17 19:27     ` Ville Syrjälä
2019-01-11 17:25 ` ✗ Fi.CI.CHECKPATCH: warning for Enable/disable gamma/csc dynamically and fix C8 Patchwork
2019-01-11 17:44 ` ✓ Fi.CI.BAT: success " Patchwork
2019-01-11 22:03 ` ✓ Fi.CI.IGT: " Patchwork

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