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2023-12-11 6778948f9de86c3cfaf36725a7c87dcff9ba247f 
 kernel/include/drm/drm_mode_config.h
....@@ -52,6 +52,12 @@
5252 	 * requested metadata, but most of that is left to the driver. See
5353 	 * &struct drm_mode_fb_cmd2 for details.
5454 	 *
55
+	 * To validate the pixel format and modifier drivers can use
56
+	 * drm_any_plane_has_format() to make sure at least one plane supports
57
+	 * the requested values. Note that the driver must first determine the
58
+	 * actual modifier used if the request doesn't have it specified,
59
+	 * ie. when (@mode_cmd->flags & DRM_MODE_FB_MODIFIERS) == 0.
60
+	 *
5561 	 * If the parameters are deemed valid and the backing storage objects in
5662 	 * the underlying memory manager all exist, then the driver allocates
5763 	 * a new &drm_framebuffer structure, subclassed to contain
....@@ -355,7 +361,7 @@
355361 	 *
356362 	 * This is the big scary modeset BKL which protects everything that
357363 	 * isn't protect otherwise. Scope is unclear and fuzzy, try to remove
358
-	 * anything from under it's protection and move it into more well-scoped
364
+	 * anything from under its protection and move it into more well-scoped
359365 	 * locks.
360366 	 *
361367 	 * The one important thing this protects is the use of @acquire_ctx.
....@@ -385,18 +391,18 @@
385391 	/**
386392 	 * @idr_mutex:
387393 	 *
388
-	 * Mutex for KMS ID allocation and management. Protects both @crtc_idr
394
+	 * Mutex for KMS ID allocation and management. Protects both @object_idr
389395 	 * and @tile_idr.
390396 	 */
391397 	struct mutex idr_mutex;
392398 
393399 	/**
394
-	 * @crtc_idr:
400
+	 * @object_idr:
395401 	 *
396402 	 * Main KMS ID tracking object. Use this idr for all IDs, fb, crtc,
397403 	 * connector, modes - just makes life easier to have only one.
398404 	 */
399
-	struct idr crtc_idr;
405
+	struct idr object_idr;
400406 
401407 	/**
402408 	 * @tile_idr:
....@@ -506,6 +512,15 @@
506512 	 */
507513 	struct list_head property_list;
508514 
515
+	/**
516
+	 * @privobj_list:
517
+	 *
518
+	 * List of private objects linked with &drm_private_obj.head. This is
519
+	 * invariant over the lifetime of a device and hence doesn't need any
520
+	 * locks.
521
+	 */
522
+	struct list_head privobj_list;
523
+
509524 	int min_width, min_height;
510525 	int max_width, max_height;
511526 	const struct drm_mode_config_funcs *funcs;
....@@ -588,22 +603,22 @@
588603 	struct drm_property *prop_src_h;
589604 	/**
590605 	 * @prop_crtc_x: Default atomic plane property for the plane destination
591
-	 * position in the &drm_crtc is is being shown on.
606
+	 * position in the &drm_crtc is being shown on.
592607 	 */
593608 	struct drm_property *prop_crtc_x;
594609 	/**
595610 	 * @prop_crtc_y: Default atomic plane property for the plane destination
596
-	 * position in the &drm_crtc is is being shown on.
611
+	 * position in the &drm_crtc is being shown on.
597612 	 */
598613 	struct drm_property *prop_crtc_y;
599614 	/**
600615 	 * @prop_crtc_w: Default atomic plane property for the plane destination
601
-	 * position in the &drm_crtc is is being shown on.
616
+	 * position in the &drm_crtc is being shown on.
602617 	 */
603618 	struct drm_property *prop_crtc_w;
604619 	/**
605620 	 * @prop_crtc_h: Default atomic plane property for the plane destination
606
-	 * position in the &drm_crtc is is being shown on.
621
+	 * position in the &drm_crtc is being shown on.
607622 	 */
608623 	struct drm_property *prop_crtc_h;
609624 	/**
....@@ -628,6 +643,15 @@
628643 	 */
629644 	struct drm_property *prop_crtc_id;
630645 	/**
646
+	 * @prop_fb_damage_clips: Optional plane property to mark damaged
647
+	 * regions on the plane in framebuffer coordinates of the framebuffer
648
+	 * attached to the plane.
649
+	 *
650
+	 * The layout of blob data is simply an array of &drm_mode_rect. Unlike
651
+	 * plane src coordinates, damage clips are not in 16.16 fixed point.
652
+	 */
653
+	struct drm_property *prop_fb_damage_clips;
654
+	/**
631655 	 * @prop_active: Default atomic CRTC property to control the active
632656 	 * state, which is the simplified implementation for DPMS in atomic
633657 	 * drivers.
....@@ -639,6 +663,11 @@
639663 	 * connectors must be of and active must be set to disabled, too.
640664 	 */
641665 	struct drm_property *prop_mode_id;
666
+	/**
667
+	 * @prop_vrr_enabled: Default atomic CRTC property to indicate
668
+	 * whether variable refresh rate should be enabled on the CRTC.
669
+	 */
670
+	struct drm_property *prop_vrr_enabled;
642671 
643672 	/**
644673 	 * @dvi_i_subconnector_property: Optional DVI-I property to
....@@ -650,6 +679,12 @@
650679 	 * select between analog or digital mode.
651680 	 */
652681 	struct drm_property *dvi_i_select_subconnector_property;
682
+
683
+	/**
684
+	 * @dp_subconnector_property: Optional DP property to differentiate
685
+	 * between different DP downstream port types.
686
+	 */
687
+	struct drm_property *dp_subconnector_property;
653688 
654689 	/**
655690 	 * @tv_subconnector_property: Optional TV property to differentiate
....@@ -668,22 +703,22 @@
668703 	struct drm_property *tv_mode_property;
669704 	/**
670705 	 * @tv_left_margin_property: Optional TV property to set the left
671
-	 * margin.
706
+	 * margin (expressed in pixels).
672707 	 */
673708 	struct drm_property *tv_left_margin_property;
674709 	/**
675710 	 * @tv_right_margin_property: Optional TV property to set the right
676
-	 * margin.
711
+	 * margin (expressed in pixels).
677712 	 */
678713 	struct drm_property *tv_right_margin_property;
679714 	/**
680715 	 * @tv_top_margin_property: Optional TV property to set the right
681
-	 * margin.
716
+	 * margin (expressed in pixels).
682717 	 */
683718 	struct drm_property *tv_top_margin_property;
684719 	/**
685720 	 * @tv_bottom_margin_property: Optional TV property to set the right
686
-	 * margin.
721
+	 * margin (expressed in pixels).
687722 	 */
688723 	struct drm_property *tv_bottom_margin_property;
689724 	/**
....@@ -760,17 +795,6 @@
760795 	struct drm_property *gamma_lut_size_property;
761796 
762797 	/**
763
-	 * @cubic_lut_property: Optional CRTC property to set the 3D LUT used to
764
-	 * convert color spaces.
765
-	 */
766
-	struct drm_property *cubic_lut_property;
767
-	/**
768
-	 * @cubic_lut_size_property: Optional CRTC property for the size of the
769
-	 * 3D LUT as supported by the driver (read-only).
770
-	 */
771
-	struct drm_property *cubic_lut_size_property;
772
-
773
-	/**
774798 	 * @suggested_x_property: Optional connector property with a hint for
775799 	 * the position of the output on the host's screen.
776800 	 */
....@@ -819,14 +843,67 @@
819843 	struct drm_property *writeback_out_fence_ptr_property;
820844 
821845 	/**
822
-	 * hdr_output_metadata_property: Connector property containing hdr
823
-	 * metatda. This will be provided by userspace compositors based
846
+	 * @hdr_output_metadata_property: Connector property containing hdr
847
+	 * metatada. This will be provided by userspace compositors based
824848 	 * on HDR content
825849 	 */
826850 	struct drm_property *hdr_output_metadata_property;
827851 
852
+	/**
853
+	 * @content_protection_property: DRM ENUM property for content
854
+	 * protection. See drm_connector_attach_content_protection_property().
855
+	 */
856
+	struct drm_property *content_protection_property;
857
+
858
+	/**
859
+	 * @hdcp_content_type_property: DRM ENUM property for type of
860
+	 * Protected Content.
861
+	 */
862
+	struct drm_property *hdcp_content_type_property;
863
+
828864 	/* dumb ioctl parameters */
829865 	uint32_t preferred_depth, prefer_shadow;
866
+
867
+	/**
868
+	 * @prefer_shadow_fbdev:
869
+	 *
870
+	 * Hint to framebuffer emulation to prefer shadow-fb rendering.
871
+	 */
872
+	bool prefer_shadow_fbdev;
873
+
874
+	/**
875
+	 * @fbdev_use_iomem:
876
+	 *
877
+	 * Set to true if framebuffer reside in iomem.
878
+	 * When set to true memcpy_toio() is used when copying the framebuffer in
879
+	 * drm_fb_helper.drm_fb_helper_dirty_blit_real().
880
+	 *
881
+	 * FIXME: This should be replaced with a per-mapping is_iomem
882
+	 * flag (like ttm does), and then used everywhere in fbdev code.
883
+	 */
884
+	bool fbdev_use_iomem;
885
+
886
+	/**
887
+	 * @quirk_addfb_prefer_xbgr_30bpp:
888
+	 *
889
+	 * Special hack for legacy ADDFB to keep nouveau userspace happy. Should
890
+	 * only ever be set by the nouveau kernel driver.
891
+	 */
892
+	bool quirk_addfb_prefer_xbgr_30bpp;
893
+
894
+	/**
895
+	 * @quirk_addfb_prefer_host_byte_order:
896
+	 *
897
+	 * When set to true drm_mode_addfb() will pick host byte order
898
+	 * pixel_format when calling drm_mode_addfb2().  This is how
899
+	 * drm_mode_addfb() should have worked from day one.  It
900
+	 * didn't though, so we ended up with quirks in both kernel
901
+	 * and userspace drivers to deal with the broken behavior.
902
+	 * Simply fixing drm_mode_addfb() unconditionally would break
903
+	 * these drivers, so add a quirk bit here to allow drivers
904
+	 * opt-in.
905
+	 */
906
+	bool quirk_addfb_prefer_host_byte_order;
830907 
831908 	/**
832909 	 * @async_page_flip: Does this device support async flips on the primary
....@@ -870,7 +947,23 @@
870947 	const struct drm_mode_config_helper_funcs *helper_private;
871948 };
872949 
873
-void drm_mode_config_init(struct drm_device *dev);
950
+int __must_check drmm_mode_config_init(struct drm_device *dev);
951
+
952
+/**
953
+ * drm_mode_config_init - DRM mode_configuration structure initialization
954
+ * @dev: DRM device
955
+ *
956
+ * This is the unmanaged version of drmm_mode_config_init() for drivers which
957
+ * still explicitly call drm_mode_config_cleanup().
958
+ *
959
+ * FIXME: This function is deprecated and drivers should be converted over to
960
+ * drmm_mode_config_init().
961
+ */
962
+static inline int drm_mode_config_init(struct drm_device *dev)
963
+{
964
+	return drmm_mode_config_init(dev);
965
+}
966
+
874967 void drm_mode_config_reset(struct drm_device *dev);
875968 void drm_mode_config_cleanup(struct drm_device *dev);
876969