Add property to set predefined transfer function to enable delinearizing
content with or without shaper LUT. Drivers should advertize this
property acoording to HW caps.
Signed-off-by: Melissa Wen <mwen@xxxxxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_display.c | 9 +++++++++
drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h | 6 ++++++
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h | 6 ++++++
.../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c | 12 ++++++++++++
4 files changed, 33 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c
index 258dfc66c2ac..d52bed00bbdb 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c
@@ -1318,6 +1318,15 @@ amdgpu_display_create_color_properties(struct amdgpu_device *adev)
return -ENOMEM;
adev->mode_info.plane_shaper_lut_size_property = prop;
+ prop = drm_property_create_enum(adev_to_drm(adev),
+ DRM_MODE_PROP_ENUM,
+ "AMD_PLANE_SHAPER_TF",
+ drm_transfer_function_enum_list,
+ ARRAY_SIZE(drm_transfer_function_enum_list));
+ if (!prop)
+ return -ENOMEM;
+ adev->mode_info.plane_shaper_tf_property = prop;
+
prop = drm_property_create(adev_to_drm(adev),
DRM_MODE_PROP_BLOB,
"AMD_PLANE_LUT3D", 0);
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h
index 44306557a905..a41c3a39c367 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h
@@ -379,6 +379,12 @@ struct amdgpu_mode_info {
* pre-blending shaper LUT as supported by the driver (read-only).
*/
struct drm_property *plane_shaper_lut_size_property;
+ /**
+ * @plane_shaper_tf_property: Plane property to set a predefined
+ * transfer function for pre-blending shaper (before applying 3D LUT)
+ * with or without LUT.
+ */
+ struct drm_property *plane_shaper_tf_property;
/**
* @plane_lut3d_property: Plane property for gamma correction using a
* 3D LUT (pre-blending).
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h
index fa0bb6a5c598..663ffc7d648e 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h
@@ -749,6 +749,12 @@ struct dm_plane_state {
* array of &struct drm_color_lut.
*/
struct drm_property_blob *shaper_lut;
+ /**
+ * @shaper_tf:
+ *
+ * Predefined transfer function to delinearize color space.
+ */
+ enum drm_transfer_function shaper_tf;
/**
* @lut3d: 3D lookup table blob. The blob (if not NULL) is an array of
* &struct drm_color_lut.
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c
index abc5b9a353a0..61e47bdecde4 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_plane.c
@@ -1323,6 +1323,7 @@ static void dm_drm_plane_reset(struct drm_plane *plane)
__drm_atomic_helper_plane_reset(plane, &amdgpu_state->base);
amdgpu_state->degamma_tf = DRM_TRANSFER_FUNCTION_DEFAULT;
amdgpu_state->hdr_mult = AMDGPU_HDR_MULT_DEFAULT;
+ amdgpu_state->shaper_tf = DRM_TRANSFER_FUNCTION_DEFAULT;
}
static struct drm_plane_state *
@@ -1351,6 +1352,7 @@ dm_drm_plane_duplicate_state(struct drm_plane *plane)
dm_plane_state->degamma_tf = old_dm_plane_state->degamma_tf;
dm_plane_state->hdr_mult = old_dm_plane_state->hdr_mult;
+ dm_plane_state->shaper_tf = old_dm_plane_state->shaper_tf;
return &dm_plane_state->base;
}
@@ -1471,6 +1473,9 @@ dm_atomic_plane_attach_color_mgmt_properties(struct amdgpu_display_manager *dm,
drm_object_attach_property(&plane->base,
dm->adev->mode_info.plane_shaper_lut_size_property,
MAX_COLOR_LUT_ENTRIES);
+ drm_object_attach_property(&plane->base,
+ dm->adev->mode_info.plane_shaper_tf_property,
+ DRM_TRANSFER_FUNCTION_DEFAULT);
drm_object_attach_property(&plane->base,
dm->adev->mode_info.plane_lut3d_property, 0);
drm_object_attach_property(&plane->base,
@@ -1516,6 +1521,11 @@ dm_atomic_plane_set_property(struct drm_plane *plane,
&replaced);
dm_plane_state->base.color_mgmt_changed |= replaced;
return ret;
+ } else if (property == adev->mode_info.plane_shaper_tf_property) {
+ if (dm_plane_state->shaper_tf != val) {
+ dm_plane_state->shaper_tf = val;
+ dm_plane_state->base.color_mgmt_changed = 1;
+ }
} else if (property == adev->mode_info.plane_lut3d_property) {
ret = drm_property_replace_blob_from_id(plane->dev,
&dm_plane_state->lut3d,
@@ -1554,6 +1564,8 @@ dm_atomic_plane_get_property(struct drm_plane *plane,
} else if (property == adev->mode_info.plane_shaper_lut_property) {
*val = (dm_plane_state->shaper_lut) ?
dm_plane_state->shaper_lut->base.id : 0;
+ } else if (property == adev->mode_info.plane_shaper_tf_property) {
+ *val = dm_plane_state->shaper_tf;
} else if (property == adev->mode_info.plane_lut3d_property) {
*val = (dm_plane_state->lut3d) ?
dm_plane_state->lut3d->base.id : 0;
--
2.39.2
