drm/colorop: allow non-bypass colorops

Not all HW will be able to do bypass on all color
operations. Introduce an 32 bits 'flags' for all colorop
init functions and DRM_COLOROP_FLAG_ALLOW_BYPASS for creating
the BYPASS property when it's true.

Signed-off-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Daniel Stone <daniels@collabora.com>
Reviewed-by: Simon Ser <contact@emersion.fr>
Reviewed-by: Melissa Wen <mwen@igalia.com>
Reviewed-by: Sebastian Wick <sebastian.wick@redhat.com>
Signed-off-by: Simon Ser <contact@emersion.fr>
Link: https://patch.msgid.link/20251115000237.3561250-45-alex.hung@amd.com

5 files changed, 63 insertions, 40 deletions

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_colorop.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_colorop.c
index e9363814d666..cd3b7e802416 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_colorop.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_colorop.c
@@ -65,7 +65,9 @@ int amdgpu_dm_initialize_default_pipeline(struct drm_plane *plane, struct drm_pr
 		goto cleanup;
 	}
 
-	ret = drm_plane_colorop_curve_1d_init(dev, ops[i], plane, amdgpu_dm_supported_degam_tfs);
+	ret = drm_plane_colorop_curve_1d_init(dev, ops[i], plane,
+					      amdgpu_dm_supported_degam_tfs,
+					      DRM_COLOROP_FLAG_ALLOW_BYPASS);
 	if (ret)
 		goto cleanup;
 
@@ -81,7 +83,7 @@ int amdgpu_dm_initialize_default_pipeline(struct drm_plane *plane, struct drm_pr
 		goto cleanup;
 	}
 
-	ret = drm_plane_colorop_mult_init(dev, ops[i], plane);
+	ret = drm_plane_colorop_mult_init(dev, ops[i], plane, DRM_COLOROP_FLAG_ALLOW_BYPASS);
 	if (ret)
 		goto cleanup;
 
@@ -96,7 +98,7 @@ int amdgpu_dm_initialize_default_pipeline(struct drm_plane *plane, struct drm_pr
 		goto cleanup;
 	}
 
-	ret = drm_plane_colorop_ctm_3x4_init(dev, ops[i], plane);
+	ret = drm_plane_colorop_ctm_3x4_init(dev, ops[i], plane, DRM_COLOROP_FLAG_ALLOW_BYPASS);
 	if (ret)
 		goto cleanup;
 
@@ -111,7 +113,9 @@ int amdgpu_dm_initialize_default_pipeline(struct drm_plane *plane, struct drm_pr
 		goto cleanup;
 	}
 
-	ret = drm_plane_colorop_curve_1d_init(dev, ops[i], plane, amdgpu_dm_supported_shaper_tfs);
+	ret = drm_plane_colorop_curve_1d_init(dev, ops[i], plane,
+					      amdgpu_dm_supported_shaper_tfs,
+					      DRM_COLOROP_FLAG_ALLOW_BYPASS);
 	if (ret)
 		goto cleanup;
 
@@ -127,7 +131,8 @@ int amdgpu_dm_initialize_default_pipeline(struct drm_plane *plane, struct drm_pr
 	}
 
 	ret = drm_plane_colorop_curve_1d_lut_init(dev, ops[i], plane, MAX_COLOR_LUT_ENTRIES,
-						  DRM_COLOROP_LUT1D_INTERPOLATION_LINEAR);
+						  DRM_COLOROP_LUT1D_INTERPOLATION_LINEAR,
+						  DRM_COLOROP_FLAG_ALLOW_BYPASS);
 	if (ret)
 		goto cleanup;
 
@@ -142,7 +147,9 @@ int amdgpu_dm_initialize_default_pipeline(struct drm_plane *plane, struct drm_pr
 		goto cleanup;
 	}
 
-	ret = drm_plane_colorop_curve_1d_init(dev, ops[i], plane, amdgpu_dm_supported_blnd_tfs);
+	ret = drm_plane_colorop_curve_1d_init(dev, ops[i], plane,
+					      amdgpu_dm_supported_blnd_tfs,
+					      DRM_COLOROP_FLAG_ALLOW_BYPASS);
 	if (ret)
 		goto cleanup;
 
@@ -158,7 +165,8 @@ int amdgpu_dm_initialize_default_pipeline(struct drm_plane *plane, struct drm_pr
 	}
 
 	ret = drm_plane_colorop_curve_1d_lut_init(dev, ops[i], plane, MAX_COLOR_LUT_ENTRIES,
-						  DRM_COLOROP_LUT1D_INTERPOLATION_LINEAR);
+						  DRM_COLOROP_LUT1D_INTERPOLATION_LINEAR,
+						  DRM_COLOROP_FLAG_ALLOW_BYPASS);
 	if (ret)
 		goto cleanup;
 
diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c
index e49d2442fa12..436d2a948e41 100644
--- a/drivers/gpu/drm/drm_atomic.c
+++ b/drivers/gpu/drm/drm_atomic.c
@@ -787,7 +787,8 @@ static void drm_atomic_colorop_print_state(struct drm_printer *p,
 
 	drm_printf(p, "colorop[%u]:\n", colorop->base.id);
 	drm_printf(p, "\ttype=%s\n", drm_get_colorop_type_name(colorop->type));
-	drm_printf(p, "\tbypass=%u\n", state->bypass);
+	if (colorop->bypass_property)
+		drm_printf(p, "\tbypass=%u\n", state->bypass);
 
 	switch (colorop->type) {
 	case DRM_COLOROP_1D_CURVE:
diff --git a/drivers/gpu/drm/drm_colorop.c b/drivers/gpu/drm/drm_colorop.c
index f9717d809829..fd666394f31f 100644
--- a/drivers/gpu/drm/drm_colorop.c
+++ b/drivers/gpu/drm/drm_colorop.c
@@ -85,7 +85,8 @@ static const struct drm_prop_enum_list drm_colorop_lut1d_interpolation_list[] =
 /* Init Helpers */
 
 static int drm_plane_colorop_init(struct drm_device *dev, struct drm_colorop *colorop,
-				  struct drm_plane *plane, enum drm_colorop_type type)
+				  struct drm_plane *plane, enum drm_colorop_type type,
+				  uint32_t flags)
 {
 	struct drm_mode_config *config = &dev->mode_config;
 	struct drm_property *prop;
@@ -121,16 +122,18 @@ static int drm_plane_colorop_init(struct drm_device *dev, struct drm_colorop *co
 				   colorop->type_property,
 				   colorop->type);
 
-	/* bypass */
-	prop = drm_property_create_bool(dev, DRM_MODE_PROP_ATOMIC,
-					"BYPASS");
-	if (!prop)
-		return -ENOMEM;
-
-	colorop->bypass_property = prop;
-	drm_object_attach_property(&colorop->base,
-				   colorop->bypass_property,
-				   1);
+	if (flags & DRM_COLOROP_FLAG_ALLOW_BYPASS) {
+		/* bypass */
+		prop = drm_property_create_bool(dev, DRM_MODE_PROP_ATOMIC,
+						"BYPASS");
+		if (!prop)
+			return -ENOMEM;
+
+		colorop->bypass_property = prop;
+		drm_object_attach_property(&colorop->base,
+					colorop->bypass_property,
+					1);
+	}
 
 	/* next */
 	prop = drm_property_create_object(dev, DRM_MODE_PROP_IMMUTABLE | DRM_MODE_PROP_ATOMIC,
@@ -195,10 +198,11 @@ EXPORT_SYMBOL(drm_colorop_pipeline_destroy);
  * @supported_tfs: A bitfield of supported drm_plane_colorop_curve_1d_init enum values,
  *                 created using BIT(curve_type) and combined with the OR '|'
  *                 operator.
+ * @flags: bitmask of misc, see DRM_COLOROP_FLAG_* defines.
  * @return zero on success, -E value on failure
  */
 int drm_plane_colorop_curve_1d_init(struct drm_device *dev, struct drm_colorop *colorop,
-				    struct drm_plane *plane, u64 supported_tfs)
+				    struct drm_plane *plane, u64 supported_tfs, uint32_t flags)
 {
 	struct drm_prop_enum_list enum_list[DRM_COLOROP_1D_CURVE_COUNT];
 	int i, len;
@@ -219,7 +223,7 @@ int drm_plane_colorop_curve_1d_init(struct drm_device *dev, struct drm_colorop *
 		return -EINVAL;
 	}
 
-	ret = drm_plane_colorop_init(dev, colorop, plane, DRM_COLOROP_1D_CURVE);
+	ret = drm_plane_colorop_init(dev, colorop, plane, DRM_COLOROP_1D_CURVE, flags);
 	if (ret)
 		return ret;
 
@@ -278,16 +282,18 @@ static int drm_colorop_create_data_prop(struct drm_device *dev, struct drm_color
  * @plane: The associated drm_plane
  * @lut_size: LUT size supported by driver
  * @interpolation: 1D LUT interpolation type
+ * @flags: bitmask of misc, see DRM_COLOROP_FLAG_* defines.
  * @return zero on success, -E value on failure
  */
 int drm_plane_colorop_curve_1d_lut_init(struct drm_device *dev, struct drm_colorop *colorop,
 					struct drm_plane *plane, uint32_t lut_size,
-					enum drm_colorop_lut1d_interpolation_type interpolation)
+					enum drm_colorop_lut1d_interpolation_type interpolation,
+					uint32_t flags)
 {
 	struct drm_property *prop;
 	int ret;
 
-	ret = drm_plane_colorop_init(dev, colorop, plane, DRM_COLOROP_1D_LUT);
+	ret = drm_plane_colorop_init(dev, colorop, plane, DRM_COLOROP_1D_LUT, flags);
 	if (ret)
 		return ret;
 
@@ -325,11 +331,11 @@ int drm_plane_colorop_curve_1d_lut_init(struct drm_device *dev, struct drm_color
 EXPORT_SYMBOL(drm_plane_colorop_curve_1d_lut_init);
 
 int drm_plane_colorop_ctm_3x4_init(struct drm_device *dev, struct drm_colorop *colorop,
-				   struct drm_plane *plane)
+				   struct drm_plane *plane, uint32_t flags)
 {
 	int ret;
 
-	ret = drm_plane_colorop_init(dev, colorop, plane, DRM_COLOROP_CTM_3X4);
+	ret = drm_plane_colorop_init(dev, colorop, plane, DRM_COLOROP_CTM_3X4, flags);
 	if (ret)
 		return ret;
 
@@ -349,15 +355,16 @@ EXPORT_SYMBOL(drm_plane_colorop_ctm_3x4_init);
  * @dev: DRM device
  * @colorop: The drm_colorop object to initialize
  * @plane: The associated drm_plane
+ * @flags: bitmask of misc, see DRM_COLOROP_FLAG_* defines.
  * @return zero on success, -E value on failure
  */
 int drm_plane_colorop_mult_init(struct drm_device *dev, struct drm_colorop *colorop,
-				struct drm_plane *plane)
+				struct drm_plane *plane, uint32_t flags)
 {
 	struct drm_property *prop;
 	int ret;
 
-	ret = drm_plane_colorop_init(dev, colorop, plane, DRM_COLOROP_MULTIPLIER);
+	ret = drm_plane_colorop_init(dev, colorop, plane, DRM_COLOROP_MULTIPLIER, flags);
 	if (ret)
 		return ret;
 
diff --git a/drivers/gpu/drm/vkms/vkms_colorop.c b/drivers/gpu/drm/vkms/vkms_colorop.c
index 7aceb0813b2d..5c3ffc78aea0 100644
--- a/drivers/gpu/drm/vkms/vkms_colorop.c
+++ b/drivers/gpu/drm/vkms/vkms_colorop.c
@@ -31,7 +31,8 @@ static int vkms_initialize_color_pipeline(struct drm_plane *plane, struct drm_pr
 		goto cleanup;
 	}
 
-	ret = drm_plane_colorop_curve_1d_init(dev, ops[i], plane, supported_tfs);
+	ret = drm_plane_colorop_curve_1d_init(dev, ops[i], plane, supported_tfs,
+					      DRM_COLOROP_FLAG_ALLOW_BYPASS);
 	if (ret)
 		goto cleanup;
 
@@ -48,7 +49,7 @@ static int vkms_initialize_color_pipeline(struct drm_plane *plane, struct drm_pr
 		goto cleanup;
 	}
 
-	ret = drm_plane_colorop_ctm_3x4_init(dev, ops[i], plane);
+	ret = drm_plane_colorop_ctm_3x4_init(dev, ops[i], plane, DRM_COLOROP_FLAG_ALLOW_BYPASS);
 	if (ret)
 		goto cleanup;
 
@@ -64,7 +65,7 @@ static int vkms_initialize_color_pipeline(struct drm_plane *plane, struct drm_pr
 		goto cleanup;
 	}
 
-	ret = drm_plane_colorop_ctm_3x4_init(dev, ops[i], plane);
+	ret = drm_plane_colorop_ctm_3x4_init(dev, ops[i], plane, DRM_COLOROP_FLAG_ALLOW_BYPASS);
 	if (ret)
 		goto cleanup;
 
@@ -80,7 +81,8 @@ static int vkms_initialize_color_pipeline(struct drm_plane *plane, struct drm_pr
 		goto cleanup;
 	}
 
-	ret = drm_plane_colorop_curve_1d_init(dev, ops[i], plane, supported_tfs);
+	ret = drm_plane_colorop_curve_1d_init(dev, ops[i], plane, supported_tfs,
+					      DRM_COLOROP_FLAG_ALLOW_BYPASS);
 	if (ret)
 		goto cleanup;
 
diff --git a/include/drm/drm_colorop.h b/include/drm/drm_colorop.h
index 0e1a5e9d26f3..828888861ad9 100644
--- a/include/drm/drm_colorop.h
+++ b/include/drm/drm_colorop.h
@@ -31,6 +31,9 @@
 #include <drm/drm_mode.h>
 #include <drm/drm_property.h>
 
+/* DRM colorop flags */
+#define DRM_COLOROP_FLAG_ALLOW_BYPASS	(1<<0)	/* Allow bypass on the drm_colorop */
+
 /**
  * enum drm_colorop_curve_1d_type - type of 1D curve
  *
@@ -256,11 +259,12 @@ struct drm_colorop {
 	 * @bypass_property:
 	 *
 	 * Boolean property to control enablement of the color
-	 * operation. Setting bypass to "true" shall always be supported
-	 * in order to allow compositors to quickly fall back to
-	 * alternate methods of color processing. This is important
-	 * since setting color operations can fail due to unique
-	 * HW constraints.
+	 * operation. Only present if DRM_COLOROP_FLAG_ALLOW_BYPASS
+	 * flag is set. When present, setting bypass to "true" shall
+	 * always be supported to allow compositors to quickly fall
+	 * back to alternate methods of color processing. This is
+	 * important since setting color operations can fail due to
+	 * unique HW constraints.
 	 */
 	struct drm_property *bypass_property;
 
@@ -353,14 +357,15 @@ void drm_colorop_pipeline_destroy(struct drm_device *dev);
 void drm_colorop_cleanup(struct drm_colorop *colorop);
 
 int drm_plane_colorop_curve_1d_init(struct drm_device *dev, struct drm_colorop *colorop,
-				    struct drm_plane *plane, u64 supported_tfs);
+				    struct drm_plane *plane, u64 supported_tfs, uint32_t flags);
 int drm_plane_colorop_curve_1d_lut_init(struct drm_device *dev, struct drm_colorop *colorop,
 					struct drm_plane *plane, uint32_t lut_size,
-					enum drm_colorop_lut1d_interpolation_type interpolation);
+					enum drm_colorop_lut1d_interpolation_type interpolation,
+					uint32_t flags);
 int drm_plane_colorop_ctm_3x4_init(struct drm_device *dev, struct drm_colorop *colorop,
-				   struct drm_plane *plane);
+				   struct drm_plane *plane, uint32_t flags);
 int drm_plane_colorop_mult_init(struct drm_device *dev, struct drm_colorop *colorop,
-				struct drm_plane *plane);
+				struct drm_plane *plane, uint32_t flags);
 
 struct drm_colorop_state *
 drm_atomic_helper_colorop_duplicate_state(struct drm_colorop *colorop);