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

2022-11-18 Thread Dmitry Baryshkov

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 


With two minor nits (stated below) fixed:

Reviewed-by: Dmitry Baryshkov 


---
  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 = _crtc->base;

crtc->dev = dev;
+   dpu_crtc->color_enabled = ctm;
  
  	spin_lock_init(_crtc->spin_lock);

atomic_set(_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, _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;

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

2022-11-18 Thread Kalyan Thota
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 
---
 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 = _crtc->base;
crtc->dev = dev;
+   dpu_crtc->color_enabled = ctm;
 
spin_lock_init(_crtc->spin_lock);
atomic_set(_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, _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 @@