| /* |
| * Copyright (c) 2016 Intel Corporation |
| * |
| * Permission to use, copy, modify, distribute, and sell this software and its |
| * documentation for any purpose is hereby granted without fee, provided that |
| * the above copyright notice appear in all copies and that both that copyright |
| * notice and this permission notice appear in supporting documentation, and |
| * that the name of the copyright holders not be used in advertising or |
| * publicity pertaining to distribution of the software without specific, |
| * written prior permission. The copyright holders make no representations |
| * about the suitability of this software for any purpose. It is provided "as |
| * is" without express or implied warranty. |
| * |
| * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, |
| * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO |
| * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR |
| * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, |
| * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER |
| * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE |
| * OF THIS SOFTWARE. |
| */ |
| |
| #ifndef __DRM_PLANE_H__ |
| #define __DRM_PLANE_H__ |
| |
| #include <linux/list.h> |
| #include <linux/ctype.h> |
| #include <linux/kmsg_dump.h> |
| #include <drm/drm_mode_object.h> |
| #include <drm/drm_color_mgmt.h> |
| #include <drm/drm_rect.h> |
| #include <drm/drm_modeset_lock.h> |
| #include <drm/drm_util.h> |
| |
| struct drm_crtc; |
| struct drm_plane_size_hint; |
| struct drm_printer; |
| struct drm_modeset_acquire_ctx; |
| |
| enum drm_scaling_filter { |
| DRM_SCALING_FILTER_DEFAULT, |
| DRM_SCALING_FILTER_NEAREST_NEIGHBOR, |
| }; |
| |
| /** |
| * struct drm_plane_state - mutable plane state |
| * |
| * Please note that the destination coordinates @crtc_x, @crtc_y, @crtc_h and |
| * @crtc_w and the source coordinates @src_x, @src_y, @src_h and @src_w are the |
| * raw coordinates provided by userspace. Drivers should use |
| * drm_atomic_helper_check_plane_state() and only use the derived rectangles in |
| * @src and @dst to program the hardware. |
| */ |
| struct drm_plane_state { |
| /** @plane: backpointer to the plane */ |
| struct drm_plane *plane; |
| |
| /** |
| * @crtc: |
| * |
| * Currently bound CRTC, NULL if disabled. Do not write this directly, |
| * use drm_atomic_set_crtc_for_plane() |
| */ |
| struct drm_crtc *crtc; |
| |
| /** |
| * @fb: |
| * |
| * Currently bound framebuffer. Do not write this directly, use |
| * drm_atomic_set_fb_for_plane() |
| */ |
| struct drm_framebuffer *fb; |
| |
| /** |
| * @fence: |
| * |
| * Optional fence to wait for before scanning out @fb. The core atomic |
| * code will set this when userspace is using explicit fencing. Do not |
| * write this field directly for a driver's implicit fence. |
| * |
| * Drivers should store any implicit fence in this from their |
| * &drm_plane_helper_funcs.prepare_fb callback. See |
| * drm_gem_plane_helper_prepare_fb() for a suitable helper. |
| */ |
| struct dma_fence *fence; |
| |
| /** |
| * @crtc_x: |
| * |
| * Left position of visible portion of plane on crtc, signed dest |
| * location allows it to be partially off screen. |
| */ |
| |
| int32_t crtc_x; |
| /** |
| * @crtc_y: |
| * |
| * Upper position of visible portion of plane on crtc, signed dest |
| * location allows it to be partially off screen. |
| */ |
| int32_t crtc_y; |
| |
| /** @crtc_w: width of visible portion of plane on crtc */ |
| /** @crtc_h: height of visible portion of plane on crtc */ |
| uint32_t crtc_w, crtc_h; |
| |
| /** |
| * @src_x: left position of visible portion of plane within plane (in |
| * 16.16 fixed point). |
| */ |
| uint32_t src_x; |
| /** |
| * @src_y: upper position of visible portion of plane within plane (in |
| * 16.16 fixed point). |
| */ |
| uint32_t src_y; |
| /** @src_w: width of visible portion of plane (in 16.16) */ |
| /** @src_h: height of visible portion of plane (in 16.16) */ |
| uint32_t src_h, src_w; |
| |
| /** @hotspot_x: x offset to mouse cursor hotspot */ |
| /** @hotspot_y: y offset to mouse cursor hotspot */ |
| int32_t hotspot_x, hotspot_y; |
| |
| /** |
| * @alpha: |
| * Opacity of the plane with 0 as completely transparent and 0xffff as |
| * completely opaque. See drm_plane_create_alpha_property() for more |
| * details. |
| */ |
| u16 alpha; |
| |
| /** |
| * @pixel_blend_mode: |
| * The alpha blending equation selection, describing how the pixels from |
| * the current plane are composited with the background. Value can be |
| * one of DRM_MODE_BLEND_* |
| */ |
| uint16_t pixel_blend_mode; |
| |
| /** |
| * @rotation: |
| * Rotation of the plane. See drm_plane_create_rotation_property() for |
| * more details. |
| */ |
| unsigned int rotation; |
| |
| /** |
| * @zpos: |
| * Priority of the given plane on crtc (optional). |
| * |
| * User-space may set mutable zpos properties so that multiple active |
| * planes on the same CRTC have identical zpos values. This is a |
| * user-space bug, but drivers can solve the conflict by comparing the |
| * plane object IDs; the plane with a higher ID is stacked on top of a |
| * plane with a lower ID. |
| * |
| * See drm_plane_create_zpos_property() and |
| * drm_plane_create_zpos_immutable_property() for more details. |
| */ |
| unsigned int zpos; |
| |
| /** |
| * @normalized_zpos: |
| * Normalized value of zpos: unique, range from 0 to N-1 where N is the |
| * number of active planes for given crtc. Note that the driver must set |
| * &drm_mode_config.normalize_zpos or call drm_atomic_normalize_zpos() to |
| * update this before it can be trusted. |
| */ |
| unsigned int normalized_zpos; |
| |
| /** |
| * @color_encoding: |
| * |
| * Color encoding for non RGB formats |
| */ |
| enum drm_color_encoding color_encoding; |
| |
| /** |
| * @color_range: |
| * |
| * Color range for non RGB formats |
| */ |
| enum drm_color_range color_range; |
| |
| /** |
| * @fb_damage_clips: |
| * |
| * Blob representing damage (area in plane framebuffer that changed |
| * since last plane update) as an array of &drm_mode_rect in framebuffer |
| * coodinates of the attached framebuffer. Note that unlike plane src, |
| * damage clips are not in 16.16 fixed point. |
| * |
| * See drm_plane_get_damage_clips() and |
| * drm_plane_get_damage_clips_count() for accessing these. |
| */ |
| struct drm_property_blob *fb_damage_clips; |
| |
| /** |
| * @ignore_damage_clips: |
| * |
| * Set by drivers to indicate the drm_atomic_helper_damage_iter_init() |
| * helper that the @fb_damage_clips blob property should be ignored. |
| * |
| * See :ref:`damage_tracking_properties` for more information. |
| */ |
| bool ignore_damage_clips; |
| |
| /** |
| * @src: |
| * |
| * source coordinates of the plane (in 16.16). |
| * |
| * When using drm_atomic_helper_check_plane_state(), |
| * the coordinates are clipped, but the driver may choose |
| * to use unclipped coordinates instead when the hardware |
| * performs the clipping automatically. |
| */ |
| /** |
| * @dst: |
| * |
| * clipped destination coordinates of the plane. |
| * |
| * When using drm_atomic_helper_check_plane_state(), |
| * the coordinates are clipped, but the driver may choose |
| * to use unclipped coordinates instead when the hardware |
| * performs the clipping automatically. |
| */ |
| struct drm_rect src, dst; |
| |
| /** |
| * @visible: |
| * |
| * Visibility of the plane. This can be false even if fb!=NULL and |
| * crtc!=NULL, due to clipping. |
| */ |
| bool visible; |
| |
| /** |
| * @scaling_filter: |
| * |
| * Scaling filter to be applied |
| */ |
| enum drm_scaling_filter scaling_filter; |
| |
| /** |
| * @commit: Tracks the pending commit to prevent use-after-free conditions, |
| * and for async plane updates. |
| * |
| * May be NULL. |
| */ |
| struct drm_crtc_commit *commit; |
| |
| /** @state: backpointer to global drm_atomic_state */ |
| struct drm_atomic_state *state; |
| |
| /** |
| * @color_mgmt_changed: Color management properties have changed. Used |
| * by the atomic helpers and drivers to steer the atomic commit control |
| * flow. |
| */ |
| bool color_mgmt_changed : 1; |
| }; |
| |
| static inline struct drm_rect |
| drm_plane_state_src(const struct drm_plane_state *state) |
| { |
| struct drm_rect src = { |
| .x1 = state->src_x, |
| .y1 = state->src_y, |
| .x2 = state->src_x + state->src_w, |
| .y2 = state->src_y + state->src_h, |
| }; |
| return src; |
| } |
| |
| static inline struct drm_rect |
| drm_plane_state_dest(const struct drm_plane_state *state) |
| { |
| struct drm_rect dest = { |
| .x1 = state->crtc_x, |
| .y1 = state->crtc_y, |
| .x2 = state->crtc_x + state->crtc_w, |
| .y2 = state->crtc_y + state->crtc_h, |
| }; |
| return dest; |
| } |
| |
| /** |
| * struct drm_plane_funcs - driver plane control functions |
| */ |
| struct drm_plane_funcs { |
| /** |
| * @update_plane: |
| * |
| * This is the legacy entry point to enable and configure the plane for |
| * the given CRTC and framebuffer. It is never called to disable the |
| * plane, i.e. the passed-in crtc and fb paramters are never NULL. |
| * |
| * The source rectangle in frame buffer memory coordinates is given by |
| * the src_x, src_y, src_w and src_h parameters (as 16.16 fixed point |
| * values). Devices that don't support subpixel plane coordinates can |
| * ignore the fractional part. |
| * |
| * The destination rectangle in CRTC coordinates is given by the |
| * crtc_x, crtc_y, crtc_w and crtc_h parameters (as integer values). |
| * Devices scale the source rectangle to the destination rectangle. If |
| * scaling is not supported, and the source rectangle size doesn't match |
| * the destination rectangle size, the driver must return a |
| * -<errorname>EINVAL</errorname> error. |
| * |
| * Drivers implementing atomic modeset should use |
| * drm_atomic_helper_update_plane() to implement this hook. |
| * |
| * RETURNS: |
| * |
| * 0 on success or a negative error code on failure. |
| */ |
| int (*update_plane)(struct drm_plane *plane, |
| struct drm_crtc *crtc, struct drm_framebuffer *fb, |
| int crtc_x, int crtc_y, |
| unsigned int crtc_w, unsigned int crtc_h, |
| uint32_t src_x, uint32_t src_y, |
| uint32_t src_w, uint32_t src_h, |
| struct drm_modeset_acquire_ctx *ctx); |
| |
| /** |
| * @disable_plane: |
| * |
| * This is the legacy entry point to disable the plane. The DRM core |
| * calls this method in response to a DRM_IOCTL_MODE_SETPLANE IOCTL call |
| * with the frame buffer ID set to 0. Disabled planes must not be |
| * processed by the CRTC. |
| * |
| * Drivers implementing atomic modeset should use |
| * drm_atomic_helper_disable_plane() to implement this hook. |
| * |
| * RETURNS: |
| * |
| * 0 on success or a negative error code on failure. |
| */ |
| int (*disable_plane)(struct drm_plane *plane, |
| struct drm_modeset_acquire_ctx *ctx); |
| |
| /** |
| * @destroy: |
| * |
| * Clean up plane resources. This is only called at driver unload time |
| * through drm_mode_config_cleanup() since a plane cannot be hotplugged |
| * in DRM. |
| */ |
| void (*destroy)(struct drm_plane *plane); |
| |
| /** |
| * @reset: |
| * |
| * Reset plane hardware and software state to off. This function isn't |
| * called by the core directly, only through drm_mode_config_reset(). |
| * It's not a helper hook only for historical reasons. |
| * |
| * Atomic drivers can use drm_atomic_helper_plane_reset() to reset |
| * atomic state using this hook. |
| */ |
| void (*reset)(struct drm_plane *plane); |
| |
| /** |
| * @set_property: |
| * |
| * This is the legacy entry point to update a property attached to the |
| * plane. |
| * |
| * This callback is optional if the driver does not support any legacy |
| * driver-private properties. For atomic drivers it is not used because |
| * property handling is done entirely in the DRM core. |
| * |
| * RETURNS: |
| * |
| * 0 on success or a negative error code on failure. |
| */ |
| int (*set_property)(struct drm_plane *plane, |
| struct drm_property *property, uint64_t val); |
| |
| /** |
| * @atomic_duplicate_state: |
| * |
| * Duplicate the current atomic state for this plane and return it. |
| * The core and helpers guarantee that any atomic state duplicated with |
| * this hook and still owned by the caller (i.e. not transferred to the |
| * driver by calling &drm_mode_config_funcs.atomic_commit) will be |
| * cleaned up by calling the @atomic_destroy_state hook in this |
| * structure. |
| * |
| * This callback is mandatory for atomic drivers. |
| * |
| * Atomic drivers which don't subclass &struct drm_plane_state should use |
| * drm_atomic_helper_plane_duplicate_state(). Drivers that subclass the |
| * state structure to extend it with driver-private state should use |
| * __drm_atomic_helper_plane_duplicate_state() to make sure shared state is |
| * duplicated in a consistent fashion across drivers. |
| * |
| * It is an error to call this hook before &drm_plane.state has been |
| * initialized correctly. |
| * |
| * NOTE: |
| * |
| * If the duplicate state references refcounted resources this hook must |
| * acquire a reference for each of them. The driver must release these |
| * references again in @atomic_destroy_state. |
| * |
| * RETURNS: |
| * |
| * Duplicated atomic state or NULL when the allocation failed. |
| */ |
| struct drm_plane_state *(*atomic_duplicate_state)(struct drm_plane *plane); |
| |
| /** |
| * @atomic_destroy_state: |
| * |
| * Destroy a state duplicated with @atomic_duplicate_state and release |
| * or unreference all resources it references |
| * |
| * This callback is mandatory for atomic drivers. |
| */ |
| void (*atomic_destroy_state)(struct drm_plane *plane, |
| struct drm_plane_state *state); |
| |
| /** |
| * @atomic_set_property: |
| * |
| * Decode a driver-private property value and store the decoded value |
| * into the passed-in state structure. Since the atomic core decodes all |
| * standardized properties (even for extensions beyond the core set of |
| * properties which might not be implemented by all drivers) this |
| * requires drivers to subclass the state structure. |
| * |
| * Such driver-private properties should really only be implemented for |
| * truly hardware/vendor specific state. Instead it is preferred to |
| * standardize atomic extension and decode the properties used to expose |
| * such an extension in the core. |
| * |
| * Do not call this function directly, use |
| * drm_atomic_plane_set_property() instead. |
| * |
| * This callback is optional if the driver does not support any |
| * driver-private atomic properties. |
| * |
| * NOTE: |
| * |
| * This function is called in the state assembly phase of atomic |
| * modesets, which can be aborted for any reason (including on |
| * userspace's request to just check whether a configuration would be |
| * possible). Drivers MUST NOT touch any persistent state (hardware or |
| * software) or data structures except the passed in @state parameter. |
| * |
| * Also since userspace controls in which order properties are set this |
| * function must not do any input validation (since the state update is |
| * incomplete and hence likely inconsistent). Instead any such input |
| * validation must be done in the various atomic_check callbacks. |
| * |
| * RETURNS: |
| * |
| * 0 if the property has been found, -EINVAL if the property isn't |
| * implemented by the driver (which shouldn't ever happen, the core only |
| * asks for properties attached to this plane). No other validation is |
| * allowed by the driver. The core already checks that the property |
| * value is within the range (integer, valid enum value, ...) the driver |
| * set when registering the property. |
| */ |
| int (*atomic_set_property)(struct drm_plane *plane, |
| struct drm_plane_state *state, |
| struct drm_property *property, |
| uint64_t val); |
| |
| /** |
| * @atomic_get_property: |
| * |
| * Reads out the decoded driver-private property. This is used to |
| * implement the GETPLANE IOCTL. |
| * |
| * Do not call this function directly, use |
| * drm_atomic_plane_get_property() instead. |
| * |
| * This callback is optional if the driver does not support any |
| * driver-private atomic properties. |
| * |
| * RETURNS: |
| * |
| * 0 on success, -EINVAL if the property isn't implemented by the |
| * driver (which should never happen, the core only asks for |
| * properties attached to this plane). |
| */ |
| int (*atomic_get_property)(struct drm_plane *plane, |
| const struct drm_plane_state *state, |
| struct drm_property *property, |
| uint64_t *val); |
| /** |
| * @late_register: |
| * |
| * This optional hook can be used to register additional userspace |
| * interfaces attached to the plane like debugfs interfaces. |
| * It is called late in the driver load sequence from drm_dev_register(). |
| * Everything added from this callback should be unregistered in |
| * the early_unregister callback. |
| * |
| * Returns: |
| * |
| * 0 on success, or a negative error code on failure. |
| */ |
| int (*late_register)(struct drm_plane *plane); |
| |
| /** |
| * @early_unregister: |
| * |
| * This optional hook should be used to unregister the additional |
| * userspace interfaces attached to the plane from |
| * @late_register. It is called from drm_dev_unregister(), |
| * early in the driver unload sequence to disable userspace access |
| * before data structures are torndown. |
| */ |
| void (*early_unregister)(struct drm_plane *plane); |
| |
| /** |
| * @atomic_print_state: |
| * |
| * If driver subclasses &struct drm_plane_state, it should implement |
| * this optional hook for printing additional driver specific state. |
| * |
| * Do not call this directly, use drm_atomic_plane_print_state() |
| * instead. |
| */ |
| void (*atomic_print_state)(struct drm_printer *p, |
| const struct drm_plane_state *state); |
| |
| /** |
| * @format_mod_supported: |
| * |
| * This optional hook is used for the DRM to determine if the given |
| * format/modifier combination is valid for the plane. This allows the |
| * DRM to generate the correct format bitmask (which formats apply to |
| * which modifier), and to validate modifiers at atomic_check time. |
| * |
| * If not present, then any modifier in the plane's modifier |
| * list is allowed with any of the plane's formats. |
| * |
| * Returns: |
| * |
| * True if the given modifier is valid for that format on the plane. |
| * False otherwise. |
| */ |
| bool (*format_mod_supported)(struct drm_plane *plane, uint32_t format, |
| uint64_t modifier); |
| }; |
| |
| /** |
| * enum drm_plane_type - uapi plane type enumeration |
| * |
| * For historical reasons not all planes are made the same. This enumeration is |
| * used to tell the different types of planes apart to implement the different |
| * uapi semantics for them. For userspace which is universal plane aware and |
| * which is using that atomic IOCTL there's no difference between these planes |
| * (beyong what the driver and hardware can support of course). |
| * |
| * For compatibility with legacy userspace, only overlay planes are made |
| * available to userspace by default. Userspace clients may set the |
| * &DRM_CLIENT_CAP_UNIVERSAL_PLANES client capability bit to indicate that they |
| * wish to receive a universal plane list containing all plane types. See also |
| * drm_for_each_legacy_plane(). |
| * |
| * In addition to setting each plane's type, drivers need to setup the |
| * &drm_crtc.primary and optionally &drm_crtc.cursor pointers for legacy |
| * IOCTLs. See drm_crtc_init_with_planes(). |
| * |
| * WARNING: The values of this enum is UABI since they're exposed in the "type" |
| * property. |
| */ |
| enum drm_plane_type { |
| /** |
| * @DRM_PLANE_TYPE_OVERLAY: |
| * |
| * Overlay planes represent all non-primary, non-cursor planes. Some |
| * drivers refer to these types of planes as "sprites" internally. |
| */ |
| DRM_PLANE_TYPE_OVERLAY, |
| |
| /** |
| * @DRM_PLANE_TYPE_PRIMARY: |
| * |
| * A primary plane attached to a CRTC is the most likely to be able to |
| * light up the CRTC when no scaling/cropping is used and the plane |
| * covers the whole CRTC. |
| */ |
| DRM_PLANE_TYPE_PRIMARY, |
| |
| /** |
| * @DRM_PLANE_TYPE_CURSOR: |
| * |
| * A cursor plane attached to a CRTC is more likely to be able to be |
| * enabled when no scaling/cropping is used and the framebuffer has the |
| * size indicated by &drm_mode_config.cursor_width and |
| * &drm_mode_config.cursor_height. Additionally, if the driver doesn't |
| * support modifiers, the framebuffer should have a linear layout. |
| */ |
| DRM_PLANE_TYPE_CURSOR, |
| }; |
| |
| |
| /** |
| * struct drm_plane - central DRM plane control structure |
| * |
| * Planes represent the scanout hardware of a display block. They receive their |
| * input data from a &drm_framebuffer and feed it to a &drm_crtc. Planes control |
| * the color conversion, see `Plane Composition Properties`_ for more details, |
| * and are also involved in the color conversion of input pixels, see `Color |
| * Management Properties`_ for details on that. |
| */ |
| struct drm_plane { |
| /** @dev: DRM device this plane belongs to */ |
| struct drm_device *dev; |
| |
| /** |
| * @head: |
| * |
| * List of all planes on @dev, linked from &drm_mode_config.plane_list. |
| * Invariant over the lifetime of @dev and therefore does not need |
| * locking. |
| */ |
| struct list_head head; |
| |
| /** @name: human readable name, can be overwritten by the driver */ |
| char *name; |
| |
| /** |
| * @mutex: |
| * |
| * Protects modeset plane state, together with the &drm_crtc.mutex of |
| * CRTC this plane is linked to (when active, getting activated or |
| * getting disabled). |
| * |
| * For atomic drivers specifically this protects @state. |
| */ |
| struct drm_modeset_lock mutex; |
| |
| /** @base: base mode object */ |
| struct drm_mode_object base; |
| |
| /** |
| * @possible_crtcs: pipes this plane can be bound to constructed from |
| * drm_crtc_mask() |
| */ |
| uint32_t possible_crtcs; |
| /** @format_types: array of formats supported by this plane */ |
| uint32_t *format_types; |
| /** @format_count: Size of the array pointed at by @format_types. */ |
| unsigned int format_count; |
| /** |
| * @format_default: driver hasn't supplied supported formats for the |
| * plane. Used by the non-atomic driver compatibility wrapper only. |
| */ |
| bool format_default; |
| |
| /** @modifiers: array of modifiers supported by this plane */ |
| uint64_t *modifiers; |
| /** @modifier_count: Size of the array pointed at by @modifier_count. */ |
| unsigned int modifier_count; |
| |
| /** |
| * @crtc: |
| * |
| * Currently bound CRTC, only meaningful for non-atomic drivers. For |
| * atomic drivers this is forced to be NULL, atomic drivers should |
| * instead check &drm_plane_state.crtc. |
| */ |
| struct drm_crtc *crtc; |
| |
| /** |
| * @fb: |
| * |
| * Currently bound framebuffer, only meaningful for non-atomic drivers. |
| * For atomic drivers this is forced to be NULL, atomic drivers should |
| * instead check &drm_plane_state.fb. |
| */ |
| struct drm_framebuffer *fb; |
| |
| /** |
| * @old_fb: |
| * |
| * Temporary tracking of the old fb while a modeset is ongoing. Only |
| * used by non-atomic drivers, forced to be NULL for atomic drivers. |
| */ |
| struct drm_framebuffer *old_fb; |
| |
| /** @funcs: plane control functions */ |
| const struct drm_plane_funcs *funcs; |
| |
| /** @properties: property tracking for this plane */ |
| struct drm_object_properties properties; |
| |
| /** @type: Type of plane, see &enum drm_plane_type for details. */ |
| enum drm_plane_type type; |
| |
| /** |
| * @index: Position inside the mode_config.list, can be used as an array |
| * index. It is invariant over the lifetime of the plane. |
| */ |
| unsigned index; |
| |
| /** @helper_private: mid-layer private data */ |
| const struct drm_plane_helper_funcs *helper_private; |
| |
| /** |
| * @state: |
| * |
| * Current atomic state for this plane. |
| * |
| * This is protected by @mutex. Note that nonblocking atomic commits |
| * access the current plane state without taking locks. Either by going |
| * through the &struct drm_atomic_state pointers, see |
| * for_each_oldnew_plane_in_state(), for_each_old_plane_in_state() and |
| * for_each_new_plane_in_state(). Or through careful ordering of atomic |
| * commit operations as implemented in the atomic helpers, see |
| * &struct drm_crtc_commit. |
| */ |
| struct drm_plane_state *state; |
| |
| /** |
| * @alpha_property: |
| * Optional alpha property for this plane. See |
| * drm_plane_create_alpha_property(). |
| */ |
| struct drm_property *alpha_property; |
| /** |
| * @zpos_property: |
| * Optional zpos property for this plane. See |
| * drm_plane_create_zpos_property(). |
| */ |
| struct drm_property *zpos_property; |
| /** |
| * @rotation_property: |
| * Optional rotation property for this plane. See |
| * drm_plane_create_rotation_property(). |
| */ |
| struct drm_property *rotation_property; |
| /** |
| * @blend_mode_property: |
| * Optional "pixel blend mode" enum property for this plane. |
| * Blend mode property represents the alpha blending equation selection, |
| * describing how the pixels from the current plane are composited with |
| * the background. |
| */ |
| struct drm_property *blend_mode_property; |
| |
| /** |
| * @color_encoding_property: |
| * |
| * Optional "COLOR_ENCODING" enum property for specifying |
| * color encoding for non RGB formats. |
| * See drm_plane_create_color_properties(). |
| */ |
| struct drm_property *color_encoding_property; |
| /** |
| * @color_range_property: |
| * |
| * Optional "COLOR_RANGE" enum property for specifying |
| * color range for non RGB formats. |
| * See drm_plane_create_color_properties(). |
| */ |
| struct drm_property *color_range_property; |
| |
| /** |
| * @scaling_filter_property: property to apply a particular filter while |
| * scaling. |
| */ |
| struct drm_property *scaling_filter_property; |
| |
| /** |
| * @hotspot_x_property: property to set mouse hotspot x offset. |
| */ |
| struct drm_property *hotspot_x_property; |
| |
| /** |
| * @hotspot_y_property: property to set mouse hotspot y offset. |
| */ |
| struct drm_property *hotspot_y_property; |
| |
| /** |
| * @kmsg_panic: Used to register a panic notifier for this plane |
| */ |
| struct kmsg_dumper kmsg_panic; |
| }; |
| |
| #define obj_to_plane(x) container_of(x, struct drm_plane, base) |
| |
| __printf(9, 10) |
| int drm_universal_plane_init(struct drm_device *dev, |
| struct drm_plane *plane, |
| uint32_t possible_crtcs, |
| const struct drm_plane_funcs *funcs, |
| const uint32_t *formats, |
| unsigned int format_count, |
| const uint64_t *format_modifiers, |
| enum drm_plane_type type, |
| const char *name, ...); |
| void drm_plane_cleanup(struct drm_plane *plane); |
| |
| __printf(10, 11) |
| void *__drmm_universal_plane_alloc(struct drm_device *dev, |
| size_t size, size_t offset, |
| uint32_t possible_crtcs, |
| const struct drm_plane_funcs *funcs, |
| const uint32_t *formats, |
| unsigned int format_count, |
| const uint64_t *format_modifiers, |
| enum drm_plane_type plane_type, |
| const char *name, ...); |
| |
| /** |
| * drmm_universal_plane_alloc - Allocate and initialize an universal plane object |
| * @dev: DRM device |
| * @type: the type of the struct which contains struct &drm_plane |
| * @member: the name of the &drm_plane within @type |
| * @possible_crtcs: bitmask of possible CRTCs |
| * @funcs: callbacks for the new plane |
| * @formats: array of supported formats (DRM_FORMAT\_\*) |
| * @format_count: number of elements in @formats |
| * @format_modifiers: array of struct drm_format modifiers terminated by |
| * DRM_FORMAT_MOD_INVALID |
| * @plane_type: type of plane (overlay, primary, cursor) |
| * @name: printf style format string for the plane name, or NULL for default name |
| * |
| * Allocates and initializes a plane object of type @type. Cleanup is |
| * automatically handled through registering drm_plane_cleanup() with |
| * drmm_add_action(). |
| * |
| * The @drm_plane_funcs.destroy hook must be NULL. |
| * |
| * Drivers that only support the DRM_FORMAT_MOD_LINEAR modifier support may set |
| * @format_modifiers to NULL. The plane will advertise the linear modifier. |
| * |
| * Returns: |
| * Pointer to new plane, or ERR_PTR on failure. |
| */ |
| #define drmm_universal_plane_alloc(dev, type, member, possible_crtcs, funcs, formats, \ |
| format_count, format_modifiers, plane_type, name, ...) \ |
| ((type *)__drmm_universal_plane_alloc(dev, sizeof(type), \ |
| offsetof(type, member), \ |
| possible_crtcs, funcs, formats, \ |
| format_count, format_modifiers, \ |
| plane_type, name, ##__VA_ARGS__)) |
| |
| __printf(10, 11) |
| void *__drm_universal_plane_alloc(struct drm_device *dev, |
| size_t size, size_t offset, |
| uint32_t possible_crtcs, |
| const struct drm_plane_funcs *funcs, |
| const uint32_t *formats, |
| unsigned int format_count, |
| const uint64_t *format_modifiers, |
| enum drm_plane_type plane_type, |
| const char *name, ...); |
| |
| /** |
| * drm_universal_plane_alloc() - Allocate and initialize an universal plane object |
| * @dev: DRM device |
| * @type: the type of the struct which contains struct &drm_plane |
| * @member: the name of the &drm_plane within @type |
| * @possible_crtcs: bitmask of possible CRTCs |
| * @funcs: callbacks for the new plane |
| * @formats: array of supported formats (DRM_FORMAT\_\*) |
| * @format_count: number of elements in @formats |
| * @format_modifiers: array of struct drm_format modifiers terminated by |
| * DRM_FORMAT_MOD_INVALID |
| * @plane_type: type of plane (overlay, primary, cursor) |
| * @name: printf style format string for the plane name, or NULL for default name |
| * |
| * Allocates and initializes a plane object of type @type. The caller |
| * is responsible for releasing the allocated memory with kfree(). |
| * |
| * Drivers are encouraged to use drmm_universal_plane_alloc() instead. |
| * |
| * Drivers that only support the DRM_FORMAT_MOD_LINEAR modifier support may set |
| * @format_modifiers to NULL. The plane will advertise the linear modifier. |
| * |
| * Returns: |
| * Pointer to new plane, or ERR_PTR on failure. |
| */ |
| #define drm_universal_plane_alloc(dev, type, member, possible_crtcs, funcs, formats, \ |
| format_count, format_modifiers, plane_type, name, ...) \ |
| ((type *)__drm_universal_plane_alloc(dev, sizeof(type), \ |
| offsetof(type, member), \ |
| possible_crtcs, funcs, formats, \ |
| format_count, format_modifiers, \ |
| plane_type, name, ##__VA_ARGS__)) |
| |
| /** |
| * drm_plane_index - find the index of a registered plane |
| * @plane: plane to find index for |
| * |
| * Given a registered plane, return the index of that plane within a DRM |
| * device's list of planes. |
| */ |
| static inline unsigned int drm_plane_index(const struct drm_plane *plane) |
| { |
| return plane->index; |
| } |
| |
| /** |
| * drm_plane_mask - find the mask of a registered plane |
| * @plane: plane to find mask for |
| */ |
| static inline u32 drm_plane_mask(const struct drm_plane *plane) |
| { |
| return 1 << drm_plane_index(plane); |
| } |
| |
| struct drm_plane * drm_plane_from_index(struct drm_device *dev, int idx); |
| void drm_plane_force_disable(struct drm_plane *plane); |
| |
| int drm_mode_plane_set_obj_prop(struct drm_plane *plane, |
| struct drm_property *property, |
| uint64_t value); |
| |
| /** |
| * drm_plane_find - find a &drm_plane |
| * @dev: DRM device |
| * @file_priv: drm file to check for lease against. |
| * @id: plane id |
| * |
| * Returns the plane with @id, NULL if it doesn't exist. Simple wrapper around |
| * drm_mode_object_find(). |
| */ |
| static inline struct drm_plane *drm_plane_find(struct drm_device *dev, |
| struct drm_file *file_priv, |
| uint32_t id) |
| { |
| struct drm_mode_object *mo; |
| mo = drm_mode_object_find(dev, file_priv, id, DRM_MODE_OBJECT_PLANE); |
| return mo ? obj_to_plane(mo) : NULL; |
| } |
| |
| /** |
| * drm_for_each_plane_mask - iterate over planes specified by bitmask |
| * @plane: the loop cursor |
| * @dev: the DRM device |
| * @plane_mask: bitmask of plane indices |
| * |
| * Iterate over all planes specified by bitmask. |
| */ |
| #define drm_for_each_plane_mask(plane, dev, plane_mask) \ |
| list_for_each_entry((plane), &(dev)->mode_config.plane_list, head) \ |
| for_each_if ((plane_mask) & drm_plane_mask(plane)) |
| |
| /** |
| * drm_for_each_legacy_plane - iterate over all planes for legacy userspace |
| * @plane: the loop cursor |
| * @dev: the DRM device |
| * |
| * Iterate over all legacy planes of @dev, excluding primary and cursor planes. |
| * This is useful for implementing userspace apis when userspace is not |
| * universal plane aware. See also &enum drm_plane_type. |
| */ |
| #define drm_for_each_legacy_plane(plane, dev) \ |
| list_for_each_entry(plane, &(dev)->mode_config.plane_list, head) \ |
| for_each_if (plane->type == DRM_PLANE_TYPE_OVERLAY) |
| |
| /** |
| * drm_for_each_plane - iterate over all planes |
| * @plane: the loop cursor |
| * @dev: the DRM device |
| * |
| * Iterate over all planes of @dev, include primary and cursor planes. |
| */ |
| #define drm_for_each_plane(plane, dev) \ |
| list_for_each_entry(plane, &(dev)->mode_config.plane_list, head) |
| |
| bool drm_plane_has_format(struct drm_plane *plane, |
| u32 format, u64 modifier); |
| bool drm_any_plane_has_format(struct drm_device *dev, |
| u32 format, u64 modifier); |
| |
| void drm_plane_enable_fb_damage_clips(struct drm_plane *plane); |
| unsigned int |
| drm_plane_get_damage_clips_count(const struct drm_plane_state *state); |
| struct drm_mode_rect * |
| drm_plane_get_damage_clips(const struct drm_plane_state *state); |
| |
| int drm_plane_create_scaling_filter_property(struct drm_plane *plane, |
| unsigned int supported_filters); |
| int drm_plane_add_size_hints_property(struct drm_plane *plane, |
| const struct drm_plane_size_hint *hints, |
| int num_hints); |
| |
| #endif |