diff mbox series

[v3,3/3] drm/msm/disp/dpu1: add color management support for the crtc

Message ID 1668773807-19598-4-git-send-email-quic_kalyant@quicinc.com (mailing list archive)
State New, archived
Headers show
Series add color management support for the crtc | expand

Commit Message

Kalyan Thota Nov. 18, 2022, 12:16 p.m. UTC 
Add color management support for the crtc provided there are
enough dspps that can be allocated from the catalog.

Changes in v1:
- cache color enabled state in the dpu crtc obj (Dmitry)
- simplify dspp allocation while creating crtc (Dmitry)
- register for color when crtc is created (Dmitry)

Changes in v2:
- avoid primary encoders in the documentation (Dmitry)

Changes in v3:
- add ctm for builtin encoders (Dmitry)

Signed-off-by: Kalyan Thota <quic_kalyant@quicinc.com>
---
 drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c    | 5 +++--
 drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.h    | 6 ++++--
 drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c | 7 +++++--
 drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c     | 7 ++++++-
 4 files changed, 18 insertions(+), 7 deletions(-)

Comments

Dmitry Baryshkov Nov. 18, 2022, 12:40 p.m. UTC | #1 
On 18/11/2022 15:16, Kalyan Thota wrote:
> Add color management support for the crtc provided there are
> enough dspps that can be allocated from the catalog.
> 
> Changes in v1:
> - cache color enabled state in the dpu crtc obj (Dmitry)
> - simplify dspp allocation while creating crtc (Dmitry)
> - register for color when crtc is created (Dmitry)
> 
> Changes in v2:
> - avoid primary encoders in the documentation (Dmitry)
> 
> Changes in v3:
> - add ctm for builtin encoders (Dmitry)
> 
> Signed-off-by: Kalyan Thota <quic_kalyant@quicinc.com>

With two minor nits (stated below) fixed:

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

> ---
>   drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c    | 5 +++--
>   drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.h    | 6 ++++--
>   drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c | 7 +++++--
>   drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c     | 7 ++++++-
>   4 files changed, 18 insertions(+), 7 deletions(-)
> 
> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
> index 4170fbe..6cacaaf 100644
> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
> @@ -1571,7 +1571,7 @@ static const struct drm_crtc_helper_funcs dpu_crtc_helper_funcs = {
>   
>   /* initialize crtc */
>   struct drm_crtc *dpu_crtc_init(struct drm_device *dev, struct drm_plane *plane,
> -				struct drm_plane *cursor)
> +				struct drm_plane *cursor, bool ctm)
>   {
>   	struct drm_crtc *crtc = NULL;
>   	struct dpu_crtc *dpu_crtc = NULL;
> @@ -1583,6 +1583,7 @@ struct drm_crtc *dpu_crtc_init(struct drm_device *dev, struct drm_plane *plane,
>   
>   	crtc = &dpu_crtc->base;
>   	crtc->dev = dev;
> +	dpu_crtc->color_enabled = ctm;
>   
>   	spin_lock_init(&dpu_crtc->spin_lock);
>   	atomic_set(&dpu_crtc->frame_pending, 0);
> @@ -1604,7 +1605,7 @@ struct drm_crtc *dpu_crtc_init(struct drm_device *dev, struct drm_plane *plane,
>   
>   	drm_crtc_helper_add(crtc, &dpu_crtc_helper_funcs);
>   
> -	drm_crtc_enable_color_mgmt(crtc, 0, true, 0);
> +	drm_crtc_enable_color_mgmt(crtc, 0, dpu_crtc->color_enabled, 0);
>   
>   	/* save user friendly CRTC name for later */
>   	snprintf(dpu_crtc->name, DPU_CRTC_NAME_SIZE, "crtc%u", crtc->base.id);
> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.h
> index 539b68b..1ec9517 100644
> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.h
> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.h
> @@ -136,6 +136,7 @@ struct dpu_crtc_frame_event {
>    * @enabled       : whether the DPU CRTC is currently enabled. updated in the
>    *                  commit-thread, not state-swap time which is earlier, so
>    *                  safe to make decisions on during VBLANK on/off work
> + * @color_enabled : whether crtc supports color management
>    * @feature_list  : list of color processing features supported on a crtc
>    * @active_list   : list of color processing features are active
>    * @dirty_list    : list of color processing features are dirty
> @@ -164,7 +165,7 @@ struct dpu_crtc {
>   	u64 play_count;
>   	ktime_t vblank_cb_time;
>   	bool enabled;
> -
> +	bool color_enabled;

Keep the empty line after color_enabled please.

>   	struct list_head feature_list;
>   	struct list_head active_list;
>   	struct list_head dirty_list;
> @@ -269,10 +270,11 @@ void dpu_crtc_complete_commit(struct drm_crtc *crtc);
>    * @dev: dpu device
>    * @plane: base plane
>    * @cursor: cursor plane
> + * @ctm: ctm flag
>    * @Return: new crtc object or error
>    */
>   struct drm_crtc *dpu_crtc_init(struct drm_device *dev, struct drm_plane *plane,
> -			       struct drm_plane *cursor);
> +			       struct drm_plane *cursor, bool ctm);
>   
>   /**
>    * dpu_crtc_register_custom_event - api for enabling/disabling crtc event
> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
> index 574f2b0..102612c 100644
> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
> @@ -572,6 +572,7 @@ bool dpu_encoder_use_dsc_merge(struct drm_encoder *drm_enc)
>   static struct msm_display_topology dpu_encoder_get_topology(
>   			struct dpu_encoder_virt *dpu_enc,
>   			struct dpu_kms *dpu_kms,
> +			struct dpu_crtc *dpu_crtc,
>   			struct drm_display_mode *mode)
>   {
>   	struct msm_display_topology topology = {0};
> @@ -600,7 +601,7 @@ static struct msm_display_topology dpu_encoder_get_topology(
>   	else
>   		topology.num_lm = (mode->hdisplay > MAX_HDISPLAY_SPLIT) ? 2 : 1;
>   
> -	if (dpu_enc->disp_info.intf_type == DRM_MODE_ENCODER_DSI) {
> +	if (dpu_crtc->color_enabled) {
>   		if (dpu_kms->catalog->dspp &&
>   			(dpu_kms->catalog->dspp_count >= topology.num_lm))
>   			topology.num_dspp = topology.num_lm;
> @@ -635,6 +636,7 @@ static int dpu_encoder_virt_atomic_check(
>   	struct drm_display_mode *adj_mode;
>   	struct msm_display_topology topology;
>   	struct dpu_global_state *global_state;
> +	struct dpu_crtc *dpu_crtc;
>   	int i = 0;
>   	int ret = 0;
>   
> @@ -645,6 +647,7 @@ static int dpu_encoder_virt_atomic_check(
>   	}
>   
>   	dpu_enc = to_dpu_encoder_virt(drm_enc);
> +	dpu_crtc = to_dpu_crtc(crtc_state->crtc);
>   	DPU_DEBUG_ENC(dpu_enc, "\n");
>   
>   	priv = drm_enc->dev->dev_private;
> @@ -670,7 +673,7 @@ static int dpu_encoder_virt_atomic_check(
>   		}
>   	}
>   
> -	topology = dpu_encoder_get_topology(dpu_enc, dpu_kms, adj_mode);
> +	topology = dpu_encoder_get_topology(dpu_enc, dpu_kms, dpu_crtc, adj_mode);
>   
>   	/* Reserve dynamic resources now. */
>   	if (!ret) {
> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
> index 4784db8..b57e261 100644
> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
> @@ -747,6 +747,7 @@ static int _dpu_kms_drm_obj_init(struct dpu_kms *dpu_kms)
>   
>   	int primary_planes_idx = 0, cursor_planes_idx = 0, i, ret;
>   	int max_crtc_count;
> +
>   	dev = dpu_kms->dev;
>   	priv = dev->dev_private;
>   	catalog = dpu_kms->catalog;
> @@ -804,7 +805,11 @@ static int _dpu_kms_drm_obj_init(struct dpu_kms *dpu_kms)
>   	/* Create one CRTC per encoder */
>   	i = 0;
>   	drm_for_each_encoder(encoder, dev) {
> -		crtc = dpu_crtc_init(dev, primary_planes[i], cursor_planes[i]);
> +		bool _ctm = false;
> +		if (catalog->dspp_count && dpu_encoder_is_builtin(encoder) &&
> +			encoder->encoder_type != DRM_MODE_ENCODER_VIRTUAL)

The last condition should be handled in the dpu_encoder_is_bultin()

> +			_ctm = true;
> +		crtc = dpu_crtc_init(dev, primary_planes[i], cursor_planes[i], _ctm);
>   		if (IS_ERR(crtc)) {
>   			ret = PTR_ERR(crtc);
>   			return ret;
diff mbox series

Patch

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
index 4170fbe..6cacaaf 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
@@ -1571,7 +1571,7 @@  static const struct drm_crtc_helper_funcs dpu_crtc_helper_funcs = {
 
 /* initialize crtc */
 struct drm_crtc *dpu_crtc_init(struct drm_device *dev, struct drm_plane *plane,
-				struct drm_plane *cursor)
+				struct drm_plane *cursor, bool ctm)
 {
 	struct drm_crtc *crtc = NULL;
 	struct dpu_crtc *dpu_crtc = NULL;
@@ -1583,6 +1583,7 @@  struct drm_crtc *dpu_crtc_init(struct drm_device *dev, struct drm_plane *plane,
 
 	crtc = &dpu_crtc->base;
 	crtc->dev = dev;
+	dpu_crtc->color_enabled = ctm;
 
 	spin_lock_init(&dpu_crtc->spin_lock);
 	atomic_set(&dpu_crtc->frame_pending, 0);
@@ -1604,7 +1605,7 @@  struct drm_crtc *dpu_crtc_init(struct drm_device *dev, struct drm_plane *plane,
 
 	drm_crtc_helper_add(crtc, &dpu_crtc_helper_funcs);
 
-	drm_crtc_enable_color_mgmt(crtc, 0, true, 0);
+	drm_crtc_enable_color_mgmt(crtc, 0, dpu_crtc->color_enabled, 0);
 
 	/* save user friendly CRTC name for later */
 	snprintf(dpu_crtc->name, DPU_CRTC_NAME_SIZE, "crtc%u", crtc->base.id);
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.h
index 539b68b..1ec9517 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.h
@@ -136,6 +136,7 @@  struct dpu_crtc_frame_event {
  * @enabled       : whether the DPU CRTC is currently enabled. updated in the
  *                  commit-thread, not state-swap time which is earlier, so
  *                  safe to make decisions on during VBLANK on/off work
+ * @color_enabled : whether crtc supports color management
  * @feature_list  : list of color processing features supported on a crtc
  * @active_list   : list of color processing features are active
  * @dirty_list    : list of color processing features are dirty
@@ -164,7 +165,7 @@  struct dpu_crtc {
 	u64 play_count;
 	ktime_t vblank_cb_time;
 	bool enabled;
-
+	bool color_enabled;
 	struct list_head feature_list;
 	struct list_head active_list;
 	struct list_head dirty_list;
@@ -269,10 +270,11 @@  void dpu_crtc_complete_commit(struct drm_crtc *crtc);
  * @dev: dpu device
  * @plane: base plane
  * @cursor: cursor plane
+ * @ctm: ctm flag
  * @Return: new crtc object or error
  */
 struct drm_crtc *dpu_crtc_init(struct drm_device *dev, struct drm_plane *plane,
-			       struct drm_plane *cursor);
+			       struct drm_plane *cursor, bool ctm);
 
 /**
  * dpu_crtc_register_custom_event - api for enabling/disabling crtc event
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
index 574f2b0..102612c 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
@@ -572,6 +572,7 @@  bool dpu_encoder_use_dsc_merge(struct drm_encoder *drm_enc)
 static struct msm_display_topology dpu_encoder_get_topology(
 			struct dpu_encoder_virt *dpu_enc,
 			struct dpu_kms *dpu_kms,
+			struct dpu_crtc *dpu_crtc,
 			struct drm_display_mode *mode)
 {
 	struct msm_display_topology topology = {0};
@@ -600,7 +601,7 @@  static struct msm_display_topology dpu_encoder_get_topology(
 	else
 		topology.num_lm = (mode->hdisplay > MAX_HDISPLAY_SPLIT) ? 2 : 1;
 
-	if (dpu_enc->disp_info.intf_type == DRM_MODE_ENCODER_DSI) {
+	if (dpu_crtc->color_enabled) {
 		if (dpu_kms->catalog->dspp &&
 			(dpu_kms->catalog->dspp_count >= topology.num_lm))
 			topology.num_dspp = topology.num_lm;
@@ -635,6 +636,7 @@  static int dpu_encoder_virt_atomic_check(
 	struct drm_display_mode *adj_mode;
 	struct msm_display_topology topology;
 	struct dpu_global_state *global_state;
+	struct dpu_crtc *dpu_crtc;
 	int i = 0;
 	int ret = 0;
 
@@ -645,6 +647,7 @@  static int dpu_encoder_virt_atomic_check(
 	}
 
 	dpu_enc = to_dpu_encoder_virt(drm_enc);
+	dpu_crtc = to_dpu_crtc(crtc_state->crtc);
 	DPU_DEBUG_ENC(dpu_enc, "\n");
 
 	priv = drm_enc->dev->dev_private;
@@ -670,7 +673,7 @@  static int dpu_encoder_virt_atomic_check(
 		}
 	}
 
-	topology = dpu_encoder_get_topology(dpu_enc, dpu_kms, adj_mode);
+	topology = dpu_encoder_get_topology(dpu_enc, dpu_kms, dpu_crtc, adj_mode);
 
 	/* Reserve dynamic resources now. */
 	if (!ret) {
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
index 4784db8..b57e261 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
@@ -747,6 +747,7 @@  static int _dpu_kms_drm_obj_init(struct dpu_kms *dpu_kms)
 
 	int primary_planes_idx = 0, cursor_planes_idx = 0, i, ret;
 	int max_crtc_count;
+
 	dev = dpu_kms->dev;
 	priv = dev->dev_private;
 	catalog = dpu_kms->catalog;
@@ -804,7 +805,11 @@  static int _dpu_kms_drm_obj_init(struct dpu_kms *dpu_kms)
 	/* Create one CRTC per encoder */
 	i = 0;
 	drm_for_each_encoder(encoder, dev) {
-		crtc = dpu_crtc_init(dev, primary_planes[i], cursor_planes[i]);
+		bool _ctm = false;
+		if (catalog->dspp_count && dpu_encoder_is_builtin(encoder) &&
+			encoder->encoder_type != DRM_MODE_ENCODER_VIRTUAL)
+			_ctm = true;
+		crtc = dpu_crtc_init(dev, primary_planes[i], cursor_planes[i], _ctm);
 		if (IS_ERR(crtc)) {
 			ret = PTR_ERR(crtc);
 			return ret;