/*
* 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 0 xffff 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);
/**
* @ format_mod_supported_async :
*
* This optional hook is used for the DRM to determine if for
* asynchronous flip 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 .
*
* Returns :
*
* True if the given modifier is valid for that format on the plane .
* False otherwise .
*/
bool (*format_mod_supported_async)(struct drm_plane *plane,
u32 format, u64 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
Messung V0.5 in Prozent C=92 H=100 G=95
¤ Dauer der Verarbeitung: 0.35 Sekunden
(vorverarbeitet am 2026-09-29)
¤
*© Formatika GbR, Deutschland