diff mbox series

[07/10] drm/i915/display: handle drm-crtc histogram property updates

Message ID 20241203055520.1704661-8-arun.r.murthy@intel.com (mailing list archive)
State New, archived
Headers show
Series Display Global Histogram | expand

Commit Message

Arun R Murthy Dec. 3, 2024, 5:55 a.m. UTC
Check for any updates on drm_crtc property histogram_enable and
histogram_iet_updated and call/act accordingly to update histogram or
update the image enhancement LUT data API defined in i915 histogram.

Signed-off-by: Arun R Murthy <arun.r.murthy@intel.com>
---
 drivers/gpu/drm/i915/display/intel_atomic.c   |  1 +
 drivers/gpu/drm/i915/display/intel_crtc.c     |  7 +++++++
 drivers/gpu/drm/i915/display/intel_display.c  | 17 ++++++++++++++++
 .../drm/i915/display/intel_display_types.h    |  2 ++
 .../gpu/drm/i915/display/intel_histogram.c    | 20 +++++++++++++++++++
 5 files changed, 47 insertions(+)

Comments

Kandpal, Suraj Dec. 4, 2024, 5:33 a.m. UTC | #1
> -----Original Message-----
> From: dri-devel <dri-devel-bounces@lists.freedesktop.org> On Behalf Of
> Arun R Murthy
> Sent: Tuesday, December 3, 2024 11:25 AM
> To: intel-xe@lists.freedesktop.org; intel-gfx@lists.freedesktop.org; dri-
> devel@lists.freedesktop.org
> Cc: Murthy, Arun R <arun.r.murthy@intel.com>
> Subject: [PATCH 07/10] drm/i915/display: handle drm-crtc histogram property
> updates
> 
> Check for any updates on drm_crtc property histogram_enable and
> histogram_iet_updated and call/act accordingly to update histogram or
> update the image enhancement LUT data API defined in i915 histogram.


Mostly looks good to me a little Nits here and there
First would prefer to have the subject as "*Handle drm-crtc ...."

> Signed-off-by: Arun R Murthy <arun.r.murthy@intel.com>
> ---
>  drivers/gpu/drm/i915/display/intel_atomic.c   |  1 +
>  drivers/gpu/drm/i915/display/intel_crtc.c     |  7 +++++++
>  drivers/gpu/drm/i915/display/intel_display.c  | 17 ++++++++++++++++
>  .../drm/i915/display/intel_display_types.h    |  2 ++
>  .../gpu/drm/i915/display/intel_histogram.c    | 20 +++++++++++++++++++
>  5 files changed, 47 insertions(+)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_atomic.c
> b/drivers/gpu/drm/i915/display/intel_atomic.c
> index 03dc54c802d3..dff130b3565a 100644
> --- a/drivers/gpu/drm/i915/display/intel_atomic.c
> +++ b/drivers/gpu/drm/i915/display/intel_atomic.c
> @@ -278,6 +278,7 @@ intel_crtc_duplicate_state(struct drm_crtc *crtc)
>  	crtc_state->dsb_color_vblank = NULL;
>  	crtc_state->dsb_commit = NULL;
>  	crtc_state->use_dsb = false;
> +	crtc_state->histogram_updated = false;
> 
>  	return &crtc_state->uapi;
>  }
> diff --git a/drivers/gpu/drm/i915/display/intel_crtc.c
> b/drivers/gpu/drm/i915/display/intel_crtc.c
> index a2c528d707f4..0c8741ca9a71 100644
> --- a/drivers/gpu/drm/i915/display/intel_crtc.c
> +++ b/drivers/gpu/drm/i915/display/intel_crtc.c
> @@ -27,6 +27,7 @@
>  #include "intel_drrs.h"
>  #include "intel_dsi.h"
>  #include "intel_fifo_underrun.h"
> +#include "intel_histogram.h"
>  #include "intel_pipe_crc.h"
>  #include "intel_psr.h"
>  #include "intel_sprite.h"
> @@ -210,6 +211,7 @@ static struct intel_crtc *intel_crtc_alloc(void)  static
> void intel_crtc_free(struct intel_crtc *crtc)  {
>  	intel_crtc_destroy_state(&crtc->base, crtc->base.state);
> +	intel_histogram_finish(crtc);
>  	kfree(crtc);
>  }
> 
> @@ -380,10 +382,15 @@ int intel_crtc_init(struct drm_i915_private
> *dev_priv, enum pipe pipe)
> 
> 	BIT(DRM_SCALING_FILTER_DEFAULT) |
> 
> 	BIT(DRM_SCALING_FILTER_NEAREST_NEIGHBOR));
> 
> +	if (drm_crtc_create_histogram_property(&crtc->base))
> +		drm_err(&dev_priv->drm, "Failed to initialize histogram
> +properties\n");
> +
>  	intel_color_crtc_init(crtc);
>  	intel_drrs_crtc_init(crtc);
>  	intel_crtc_crc_init(crtc);
> 
> +	intel_histogram_init(crtc);
> +
>  	cpu_latency_qos_add_request(&crtc->vblank_pm_qos,
> PM_QOS_DEFAULT_VALUE);
> 
>  	drm_WARN_ON(&dev_priv->drm, drm_crtc_index(&crtc->base) !=
> crtc->pipe); diff --git a/drivers/gpu/drm/i915/display/intel_display.c
> b/drivers/gpu/drm/i915/display/intel_display.c
> index 9db255bb1230..eeeb59fb39c0 100644
> --- a/drivers/gpu/drm/i915/display/intel_display.c
> +++ b/drivers/gpu/drm/i915/display/intel_display.c
> @@ -93,6 +93,7 @@
>  #include "intel_fifo_underrun.h"
>  #include "intel_frontbuffer.h"
>  #include "intel_hdmi.h"
> +#include "intel_histogram.h"
>  #include "intel_hotplug.h"
>  #include "intel_link_bw.h"
>  #include "intel_lvds.h"
> @@ -4612,6 +4613,12 @@ static int intel_crtc_atomic_check(struct
> intel_atomic_state *state,
>  	if (ret)
>  		return ret;
> 
> +	if (crtc_state->histogram_updated) {
> +		ret = intel_histogram_atomic_check(crtc);
> +		if (ret)
> +			return ret;
> +	}
> +
>  	return 0;
>  }
> 
> @@ -6831,6 +6838,10 @@ int intel_atomic_check(struct drm_device *dev,
>  		if (new_crtc_state->uapi.scaling_filter !=
>  		    old_crtc_state->uapi.scaling_filter)
>  			new_crtc_state->uapi.mode_changed = true;
> +
> +		if (new_crtc_state->uapi.histogram_enable |=
> +				old_crtc_state->uapi.histogram_enable)

Shouldn't this aligned with the state brackets

> +			new_crtc_state->histogram_updated = true;
>  	}
> 
>  	intel_vrr_check_modeset(state);
> @@ -7897,6 +7908,12 @@ static void intel_atomic_commit_tail(struct
> intel_atomic_state *state)
>  		 */
>  		old_crtc_state->dsb_color_vblank =
> fetch_and_zero(&new_crtc_state->dsb_color_vblank);
>  		old_crtc_state->dsb_commit =
> fetch_and_zero(&new_crtc_state->dsb_commit);
> +
> +		if (new_crtc_state->histogram_updated)
> +			intel_histogram_update(crtc, crtc->base.state-
> >histogram_enable);
> +		if (new_crtc_state->uapi.histogram_iet_updated)
> +			intel_histogram_set_iet_lut(crtc,
> +						    new_crtc_state-
> >uapi.histogram_iet);
>  	}
> 
>  	/* Underruns don't always raise interrupts, so check manually */ diff -
> -git a/drivers/gpu/drm/i915/display/intel_display_types.h
> b/drivers/gpu/drm/i915/display/intel_display_types.h
> index 351441efd10a..2e8640e84e7c 100644
> --- a/drivers/gpu/drm/i915/display/intel_display_types.h
> +++ b/drivers/gpu/drm/i915/display/intel_display_types.h
> @@ -1306,6 +1306,8 @@ struct intel_crtc_state {
> 
>  	/* LOBF flag */
>  	bool has_lobf;
> +
> +	bool histogram_updated;
>  };
> 
>  enum intel_pipe_crc_source {
> diff --git a/drivers/gpu/drm/i915/display/intel_histogram.c
> b/drivers/gpu/drm/i915/display/intel_histogram.c
> index 57bb45b36a03..8f25cfe00ba5 100644
> --- a/drivers/gpu/drm/i915/display/intel_histogram.c
> +++ b/drivers/gpu/drm/i915/display/intel_histogram.c
> @@ -68,6 +68,26 @@ static void intel_histogram_handle_int_work(struct
> work_struct *work)
>  		     DPST_CTL_BIN_REG_FUNC_SEL |
> DPST_CTL_BIN_REG_MASK, 0);
>  	for (retry = 0; retry < HISTOGRAM_BIN_READ_RETRY_COUNT; retry++)
> {
>  		if (intel_histogram_get_data(intel_crtc)) {
> +			u32 *data;
> +			u32 size;
> +			struct drm_histogram *hist;
> +
> +			size = sizeof(u32) * sizeof(histogram->bin_data);
> +			data = kzalloc(sizeof(data) * sizeof(histogram-
> >bin_data), GFP_KERNEL);
> +			if (!data)
> +				return;
> +			memcpy(histogram->bin_data, data, size);
> +			hist = kzalloc(sizeof(struct drm_histogram),
> GFP_KERNEL);
> +			if (!hist)
> +				return;
> +			hist->data_ptr = *data;
> +			hist->nr_elements = sizeof(histogram->bin_data);
> +
> +			drm_property_replace_global_blob(display->drm,
> +				&intel_crtc->base.state->histogram_data,
> +				sizeof(struct drm_histogram),
> +				hist, &intel_crtc->base.base,
> +				intel_crtc->base.histogram_data_property);

Can we move this into a single function then call it would it look neater ?

Regards,
Suraj Kandpal

>  			/* Notify user for Histogram rediness */
>  			if (kobject_uevent_env(&display->drm->primary-
> >kdev->kobj,
>  					       KOBJ_CHANGE, histogram_event))
> --
> 2.25.1
diff mbox series

Patch

diff --git a/drivers/gpu/drm/i915/display/intel_atomic.c b/drivers/gpu/drm/i915/display/intel_atomic.c
index 03dc54c802d3..dff130b3565a 100644
--- a/drivers/gpu/drm/i915/display/intel_atomic.c
+++ b/drivers/gpu/drm/i915/display/intel_atomic.c
@@ -278,6 +278,7 @@  intel_crtc_duplicate_state(struct drm_crtc *crtc)
 	crtc_state->dsb_color_vblank = NULL;
 	crtc_state->dsb_commit = NULL;
 	crtc_state->use_dsb = false;
+	crtc_state->histogram_updated = false;
 
 	return &crtc_state->uapi;
 }
diff --git a/drivers/gpu/drm/i915/display/intel_crtc.c b/drivers/gpu/drm/i915/display/intel_crtc.c
index a2c528d707f4..0c8741ca9a71 100644
--- a/drivers/gpu/drm/i915/display/intel_crtc.c
+++ b/drivers/gpu/drm/i915/display/intel_crtc.c
@@ -27,6 +27,7 @@ 
 #include "intel_drrs.h"
 #include "intel_dsi.h"
 #include "intel_fifo_underrun.h"
+#include "intel_histogram.h"
 #include "intel_pipe_crc.h"
 #include "intel_psr.h"
 #include "intel_sprite.h"
@@ -210,6 +211,7 @@  static struct intel_crtc *intel_crtc_alloc(void)
 static void intel_crtc_free(struct intel_crtc *crtc)
 {
 	intel_crtc_destroy_state(&crtc->base, crtc->base.state);
+	intel_histogram_finish(crtc);
 	kfree(crtc);
 }
 
@@ -380,10 +382,15 @@  int intel_crtc_init(struct drm_i915_private *dev_priv, enum pipe pipe)
 						BIT(DRM_SCALING_FILTER_DEFAULT) |
 						BIT(DRM_SCALING_FILTER_NEAREST_NEIGHBOR));
 
+	if (drm_crtc_create_histogram_property(&crtc->base))
+		drm_err(&dev_priv->drm, "Failed to initialize histogram properties\n");
+
 	intel_color_crtc_init(crtc);
 	intel_drrs_crtc_init(crtc);
 	intel_crtc_crc_init(crtc);
 
+	intel_histogram_init(crtc);
+
 	cpu_latency_qos_add_request(&crtc->vblank_pm_qos, PM_QOS_DEFAULT_VALUE);
 
 	drm_WARN_ON(&dev_priv->drm, drm_crtc_index(&crtc->base) != crtc->pipe);
diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index 9db255bb1230..eeeb59fb39c0 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -93,6 +93,7 @@ 
 #include "intel_fifo_underrun.h"
 #include "intel_frontbuffer.h"
 #include "intel_hdmi.h"
+#include "intel_histogram.h"
 #include "intel_hotplug.h"
 #include "intel_link_bw.h"
 #include "intel_lvds.h"
@@ -4612,6 +4613,12 @@  static int intel_crtc_atomic_check(struct intel_atomic_state *state,
 	if (ret)
 		return ret;
 
+	if (crtc_state->histogram_updated) {
+		ret = intel_histogram_atomic_check(crtc);
+		if (ret)
+			return ret;
+	}
+
 	return 0;
 }
 
@@ -6831,6 +6838,10 @@  int intel_atomic_check(struct drm_device *dev,
 		if (new_crtc_state->uapi.scaling_filter !=
 		    old_crtc_state->uapi.scaling_filter)
 			new_crtc_state->uapi.mode_changed = true;
+
+		if (new_crtc_state->uapi.histogram_enable |=
+				old_crtc_state->uapi.histogram_enable)
+			new_crtc_state->histogram_updated = true;
 	}
 
 	intel_vrr_check_modeset(state);
@@ -7897,6 +7908,12 @@  static void intel_atomic_commit_tail(struct intel_atomic_state *state)
 		 */
 		old_crtc_state->dsb_color_vblank = fetch_and_zero(&new_crtc_state->dsb_color_vblank);
 		old_crtc_state->dsb_commit = fetch_and_zero(&new_crtc_state->dsb_commit);
+
+		if (new_crtc_state->histogram_updated)
+			intel_histogram_update(crtc, crtc->base.state->histogram_enable);
+		if (new_crtc_state->uapi.histogram_iet_updated)
+			intel_histogram_set_iet_lut(crtc,
+						    new_crtc_state->uapi.histogram_iet);
 	}
 
 	/* Underruns don't always raise interrupts, so check manually */
diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h b/drivers/gpu/drm/i915/display/intel_display_types.h
index 351441efd10a..2e8640e84e7c 100644
--- a/drivers/gpu/drm/i915/display/intel_display_types.h
+++ b/drivers/gpu/drm/i915/display/intel_display_types.h
@@ -1306,6 +1306,8 @@  struct intel_crtc_state {
 
 	/* LOBF flag */
 	bool has_lobf;
+
+	bool histogram_updated;
 };
 
 enum intel_pipe_crc_source {
diff --git a/drivers/gpu/drm/i915/display/intel_histogram.c b/drivers/gpu/drm/i915/display/intel_histogram.c
index 57bb45b36a03..8f25cfe00ba5 100644
--- a/drivers/gpu/drm/i915/display/intel_histogram.c
+++ b/drivers/gpu/drm/i915/display/intel_histogram.c
@@ -68,6 +68,26 @@  static void intel_histogram_handle_int_work(struct work_struct *work)
 		     DPST_CTL_BIN_REG_FUNC_SEL | DPST_CTL_BIN_REG_MASK, 0);
 	for (retry = 0; retry < HISTOGRAM_BIN_READ_RETRY_COUNT; retry++) {
 		if (intel_histogram_get_data(intel_crtc)) {
+			u32 *data;
+			u32 size;
+			struct drm_histogram *hist;
+
+			size = sizeof(u32) * sizeof(histogram->bin_data);
+			data = kzalloc(sizeof(data) * sizeof(histogram->bin_data), GFP_KERNEL);
+			if (!data)
+				return;
+			memcpy(histogram->bin_data, data, size);
+			hist = kzalloc(sizeof(struct drm_histogram), GFP_KERNEL);
+			if (!hist)
+				return;
+			hist->data_ptr = *data;
+			hist->nr_elements = sizeof(histogram->bin_data);
+
+			drm_property_replace_global_blob(display->drm,
+				&intel_crtc->base.state->histogram_data,
+				sizeof(struct drm_histogram),
+				hist, &intel_crtc->base.base,
+				intel_crtc->base.histogram_data_property);
 			/* Notify user for Histogram rediness */
 			if (kobject_uevent_env(&display->drm->primary->kdev->kobj,
 					       KOBJ_CHANGE, histogram_event))