- From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001

- From: "Jan Alexander Steffens (heftig)" <heftig@archlinux.org>

- Date: Sat, 29 Oct 2022 17:43:52 +0200

- Subject: [PATCH] libwebrtc screen-cast sync

- 

- Patch from Fedora, at

- https://src.fedoraproject.org/rpms/firefox/blob/rawhide/f/libwebrtc-screen-cast-sync.patch

- 

- Fixes: https://bugs.archlinux.org/task/76231

- Fixes: https://bugzilla.mozilla.org/show_bug.cgi?id=1790496

- ---

-  dom/media/webrtc/moz.build                    |    2 +

-  third_party/drm/README                        |    4 +

-  third_party/drm/drm/drm.h                     | 1193 ++++++++++++++

-  third_party/drm/drm/drm_fourcc.h              | 1377 +++++++++++++++++

-  third_party/drm/drm/drm_mode.h                | 1217 +++++++++++++++

-  third_party/drm/drm/xf86drm.h                 |  966 ++++++++++++

-  .../libpipewire => drm/libdrm}/moz.build      |    4 +-

-  third_party/drm/libdrm/mozdrm.cpp             |   66 +

-  third_party/gbm/README                        |    4 +

-  third_party/gbm/gbm/gbm.h                     |  452 ++++++

-  .../libpipewire => gbm/libgbm}/moz.build      |    4 +-

-  third_party/gbm/libgbm/mozgbm.cpp             |   66 +

-  .../desktop_capture_gn/moz.build              |   48 +-

-  .../desktop_capture_options.cc                |    4 +-

-  .../desktop_capture/desktop_capture_options.h |    6 +-

-  .../linux/wayland/base_capturer_pipewire.cc   |    2 +-

-  .../desktop_capture/screen_capturer_linux.cc  |    8 -

-  .../desktop_capture/window_capturer_linux.cc  |    8 -

-  third_party/moz.build                         |    6 +

-  .../pipewire/libpipewire/mozpipewire.cpp      |   49 +-

-  20 files changed, 5453 insertions(+), 33 deletions(-)

-  create mode 100644 third_party/drm/README

-  create mode 100644 third_party/drm/drm/drm.h

-  create mode 100644 third_party/drm/drm/drm_fourcc.h

-  create mode 100644 third_party/drm/drm/drm_mode.h

-  create mode 100644 third_party/drm/drm/xf86drm.h

-  copy third_party/{pipewire/libpipewire => drm/libdrm}/moz.build (86%)

-  create mode 100644 third_party/drm/libdrm/mozdrm.cpp

-  create mode 100644 third_party/gbm/README

-  create mode 100644 third_party/gbm/gbm/gbm.h

-  copy third_party/{pipewire/libpipewire => gbm/libgbm}/moz.build (86%)

-  create mode 100644 third_party/gbm/libgbm/mozgbm.cpp

- 

- diff --git a/dom/media/webrtc/moz.build b/dom/media/webrtc/moz.build

- index b6e09dbb5c9a..ada0fcb4a5d9 100644

- --- a/dom/media/webrtc/moz.build

- +++ b/dom/media/webrtc/moz.build

- @@ -84,6 +84,8 @@ if CONFIG["MOZ_WEBRTC_SIGNALING"]:

-      ]

-  

-      if CONFIG["MOZ_WIDGET_TOOLKIT"] == "gtk":

- +        DIRS += ["/third_party/drm/libdrm"]

- +        DIRS += ["/third_party/gbm/libgbm"]

-          DIRS += ["/third_party/pipewire/libpipewire"]

-  

-      # Avoid warnings from third-party code that we can not modify.

- diff --git a/third_party/drm/README b/third_party/drm/README

- new file mode 100644

- index 000000000000..f68ed100bb77

- --- /dev/null

- +++ b/third_party/drm/README

- @@ -0,0 +1,4 @@

- +Libdrm is a drm library wrapper needed to build and run Firefox with

- +Pipewire support on Linux (https://gitlab.freedesktop.org/mesa/drm).

- +

- +libdrm directory stores headers of libdrm needed for build only.

- diff --git a/third_party/drm/drm/drm.h b/third_party/drm/drm/drm.h

- new file mode 100644

- index 000000000000..5e54c3aa4c3a

- --- /dev/null

- +++ b/third_party/drm/drm/drm.h

- @@ -0,0 +1,1193 @@

- +/*

- + * Header for the Direct Rendering Manager

- + *

- + * Author: Rickard E. (Rik) Faith <faith@valinux.com>

- + *

- + * Acknowledgments:

- + * Dec 1999, Richard Henderson <rth@twiddle.net>, move to generic cmpxchg.

- + */

- +

- +/*

- + * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.

- + * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.

- + * All rights reserved.

- + *

- + * Permission is hereby granted, free of charge, to any person obtaining a

- + * copy of this software and associated documentation files (the "Software"),

- + * to deal in the Software without restriction, including without limitation

- + * the rights to use, copy, modify, merge, publish, distribute, sublicense,

- + * and/or sell copies of the Software, and to permit persons to whom the

- + * Software is furnished to do so, subject to the following conditions:

- + *

- + * The above copyright notice and this permission notice (including the next

- + * paragraph) shall be included in all copies or substantial portions of the

- + * Software.

- + *

- + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

- + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

- + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL

- + * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR

- + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,

- + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR

- + * OTHER DEALINGS IN THE SOFTWARE.

- + */

- +

- +#ifndef _DRM_H_

- +#define _DRM_H_

- +

- +#if   defined(__linux__)

- +

- +#include <linux/types.h>

- +#include <asm/ioctl.h>

- +typedef unsigned int drm_handle_t;

- +

- +#else /* One of the BSDs */

- +

- +#include <stdint.h>

- +#include <sys/ioccom.h>

- +#include <sys/types.h>

- +typedef int8_t   __s8;

- +typedef uint8_t  __u8;

- +typedef int16_t  __s16;

- +typedef uint16_t __u16;

- +typedef int32_t  __s32;

- +typedef uint32_t __u32;

- +typedef int64_t  __s64;

- +typedef uint64_t __u64;

- +typedef size_t   __kernel_size_t;

- +typedef unsigned long drm_handle_t;

- +

- +#endif

- +

- +#if defined(__cplusplus)

- +extern "C" {

- +#endif

- +

- +#define DRM_NAME	"drm"	  /**< Name in kernel, /dev, and /proc */

- +#define DRM_MIN_ORDER	5	  /**< At least 2^5 bytes = 32 bytes */

- +#define DRM_MAX_ORDER	22	  /**< Up to 2^22 bytes = 4MB */

- +#define DRM_RAM_PERCENT 10	  /**< How much system ram can we lock? */

- +

- +#define _DRM_LOCK_HELD	0x80000000U /**< Hardware lock is held */

- +#define _DRM_LOCK_CONT	0x40000000U /**< Hardware lock is contended */

- +#define _DRM_LOCK_IS_HELD(lock)	   ((lock) & _DRM_LOCK_HELD)

- +#define _DRM_LOCK_IS_CONT(lock)	   ((lock) & _DRM_LOCK_CONT)

- +#define _DRM_LOCKING_CONTEXT(lock) ((lock) & ~(_DRM_LOCK_HELD|_DRM_LOCK_CONT))

- +

- +typedef unsigned int drm_context_t;

- +typedef unsigned int drm_drawable_t;

- +typedef unsigned int drm_magic_t;

- +

- +/*

- + * Cliprect.

- + *

- + * \warning: If you change this structure, make sure you change

- + * XF86DRIClipRectRec in the server as well

- + *

- + * \note KW: Actually it's illegal to change either for

- + * backwards-compatibility reasons.

- + */

- +struct drm_clip_rect {

- +	unsigned short x1;

- +	unsigned short y1;

- +	unsigned short x2;

- +	unsigned short y2;

- +};

- +

- +/*

- + * Drawable information.

- + */

- +struct drm_drawable_info {

- +	unsigned int num_rects;

- +	struct drm_clip_rect *rects;

- +};

- +

- +/*

- + * Texture region,

- + */

- +struct drm_tex_region {

- +	unsigned char next;

- +	unsigned char prev;

- +	unsigned char in_use;

- +	unsigned char padding;

- +	unsigned int age;

- +};

- +

- +/*

- + * Hardware lock.

- + *

- + * The lock structure is a simple cache-line aligned integer.  To avoid

- + * processor bus contention on a multiprocessor system, there should not be any

- + * other data stored in the same cache line.

- + */

- +struct drm_hw_lock {

- +	__volatile__ unsigned int lock;		/**< lock variable */

- +	char padding[60];			/**< Pad to cache line */

- +};

- +

- +/*

- + * DRM_IOCTL_VERSION ioctl argument type.

- + *

- + * \sa drmGetVersion().

- + */

- +struct drm_version {

- +	int version_major;	  /**< Major version */

- +	int version_minor;	  /**< Minor version */

- +	int version_patchlevel;	  /**< Patch level */

- +	__kernel_size_t name_len;	  /**< Length of name buffer */

- +	char *name;	  /**< Name of driver */

- +	__kernel_size_t date_len;	  /**< Length of date buffer */

- +	char *date;	  /**< User-space buffer to hold date */

- +	__kernel_size_t desc_len;	  /**< Length of desc buffer */

- +	char *desc;	  /**< User-space buffer to hold desc */

- +};

- +

- +/*

- + * DRM_IOCTL_GET_UNIQUE ioctl argument type.

- + *

- + * \sa drmGetBusid() and drmSetBusId().

- + */

- +struct drm_unique {

- +	__kernel_size_t unique_len;	  /**< Length of unique */

- +	char *unique;	  /**< Unique name for driver instantiation */

- +};

- +

- +struct drm_list {

- +	int count;		  /**< Length of user-space structures */

- +	struct drm_version *version;

- +};

- +

- +struct drm_block {

- +	int unused;

- +};

- +

- +/*

- + * DRM_IOCTL_CONTROL ioctl argument type.

- + *

- + * \sa drmCtlInstHandler() and drmCtlUninstHandler().

- + */

- +struct drm_control {

- +	enum {

- +		DRM_ADD_COMMAND,

- +		DRM_RM_COMMAND,

- +		DRM_INST_HANDLER,

- +		DRM_UNINST_HANDLER

- +	} func;

- +	int irq;

- +};

- +

- +/*

- + * Type of memory to map.

- + */

- +enum drm_map_type {

- +	_DRM_FRAME_BUFFER = 0,	  /**< WC (no caching), no core dump */

- +	_DRM_REGISTERS = 1,	  /**< no caching, no core dump */

- +	_DRM_SHM = 2,		  /**< shared, cached */

- +	_DRM_AGP = 3,		  /**< AGP/GART */

- +	_DRM_SCATTER_GATHER = 4,  /**< Scatter/gather memory for PCI DMA */

- +	_DRM_CONSISTENT = 5	  /**< Consistent memory for PCI DMA */

- +};

- +

- +/*

- + * Memory mapping flags.

- + */

- +enum drm_map_flags {

- +	_DRM_RESTRICTED = 0x01,	     /**< Cannot be mapped to user-virtual */

- +	_DRM_READ_ONLY = 0x02,

- +	_DRM_LOCKED = 0x04,	     /**< shared, cached, locked */

- +	_DRM_KERNEL = 0x08,	     /**< kernel requires access */

- +	_DRM_WRITE_COMBINING = 0x10, /**< use write-combining if available */

- +	_DRM_CONTAINS_LOCK = 0x20,   /**< SHM page that contains lock */

- +	_DRM_REMOVABLE = 0x40,	     /**< Removable mapping */

- +	_DRM_DRIVER = 0x80	     /**< Managed by driver */

- +};

- +

- +struct drm_ctx_priv_map {

- +	unsigned int ctx_id;	 /**< Context requesting private mapping */

- +	void *handle;		 /**< Handle of map */

- +};

- +

- +/*

- + * DRM_IOCTL_GET_MAP, DRM_IOCTL_ADD_MAP and DRM_IOCTL_RM_MAP ioctls

- + * argument type.

- + *

- + * \sa drmAddMap().

- + */

- +struct drm_map {

- +	unsigned long offset;	 /**< Requested physical address (0 for SAREA)*/

- +	unsigned long size;	 /**< Requested physical size (bytes) */

- +	enum drm_map_type type;	 /**< Type of memory to map */

- +	enum drm_map_flags flags;	 /**< Flags */

- +	void *handle;		 /**< User-space: "Handle" to pass to mmap() */

- +				 /**< Kernel-space: kernel-virtual address */

- +	int mtrr;		 /**< MTRR slot used */

- +	/*   Private data */

- +};

- +

- +/*

- + * DRM_IOCTL_GET_CLIENT ioctl argument type.

- + */

- +struct drm_client {

- +	int idx;		/**< Which client desired? */

- +	int auth;		/**< Is client authenticated? */

- +	unsigned long pid;	/**< Process ID */

- +	unsigned long uid;	/**< User ID */

- +	unsigned long magic;	/**< Magic */

- +	unsigned long iocs;	/**< Ioctl count */

- +};

- +

- +enum drm_stat_type {

- +	_DRM_STAT_LOCK,

- +	_DRM_STAT_OPENS,

- +	_DRM_STAT_CLOSES,

- +	_DRM_STAT_IOCTLS,

- +	_DRM_STAT_LOCKS,

- +	_DRM_STAT_UNLOCKS,

- +	_DRM_STAT_VALUE,	/**< Generic value */

- +	_DRM_STAT_BYTE,		/**< Generic byte counter (1024bytes/K) */

- +	_DRM_STAT_COUNT,	/**< Generic non-byte counter (1000/k) */

- +

- +	_DRM_STAT_IRQ,		/**< IRQ */

- +	_DRM_STAT_PRIMARY,	/**< Primary DMA bytes */

- +	_DRM_STAT_SECONDARY,	/**< Secondary DMA bytes */

- +	_DRM_STAT_DMA,		/**< DMA */

- +	_DRM_STAT_SPECIAL,	/**< Special DMA (e.g., priority or polled) */

- +	_DRM_STAT_MISSED	/**< Missed DMA opportunity */

- +	    /* Add to the *END* of the list */

- +};

- +

- +/*

- + * DRM_IOCTL_GET_STATS ioctl argument type.

- + */

- +struct drm_stats {

- +	unsigned long count;

- +	struct {

- +		unsigned long value;

- +		enum drm_stat_type type;

- +	} data[15];

- +};

- +

- +/*

- + * Hardware locking flags.

- + */

- +enum drm_lock_flags {

- +	_DRM_LOCK_READY = 0x01,	     /**< Wait until hardware is ready for DMA */

- +	_DRM_LOCK_QUIESCENT = 0x02,  /**< Wait until hardware quiescent */

- +	_DRM_LOCK_FLUSH = 0x04,	     /**< Flush this context's DMA queue first */

- +	_DRM_LOCK_FLUSH_ALL = 0x08,  /**< Flush all DMA queues first */

- +	/* These *HALT* flags aren't supported yet

- +	   -- they will be used to support the

- +	   full-screen DGA-like mode. */

- +	_DRM_HALT_ALL_QUEUES = 0x10, /**< Halt all current and future queues */

- +	_DRM_HALT_CUR_QUEUES = 0x20  /**< Halt all current queues */

- +};

- +

- +/*

- + * DRM_IOCTL_LOCK, DRM_IOCTL_UNLOCK and DRM_IOCTL_FINISH ioctl argument type.

- + *

- + * \sa drmGetLock() and drmUnlock().

- + */

- +struct drm_lock {

- +	int context;

- +	enum drm_lock_flags flags;

- +};

- +

- +/*

- + * DMA flags

- + *

- + * \warning

- + * These values \e must match xf86drm.h.

- + *

- + * \sa drm_dma.

- + */

- +enum drm_dma_flags {

- +	/* Flags for DMA buffer dispatch */

- +	_DRM_DMA_BLOCK = 0x01,	      /**<

- +				       * Block until buffer dispatched.

- +				       *

- +				       * \note The buffer may not yet have

- +				       * been processed by the hardware --

- +				       * getting a hardware lock with the

- +				       * hardware quiescent will ensure

- +				       * that the buffer has been

- +				       * processed.

- +				       */

- +	_DRM_DMA_WHILE_LOCKED = 0x02, /**< Dispatch while lock held */

- +	_DRM_DMA_PRIORITY = 0x04,     /**< High priority dispatch */

- +

- +	/* Flags for DMA buffer request */

- +	_DRM_DMA_WAIT = 0x10,	      /**< Wait for free buffers */

- +	_DRM_DMA_SMALLER_OK = 0x20,   /**< Smaller-than-requested buffers OK */

- +	_DRM_DMA_LARGER_OK = 0x40     /**< Larger-than-requested buffers OK */

- +};

- +

- +/*

- + * DRM_IOCTL_ADD_BUFS and DRM_IOCTL_MARK_BUFS ioctl argument type.

- + *

- + * \sa drmAddBufs().

- + */

- +struct drm_buf_desc {

- +	int count;		 /**< Number of buffers of this size */

- +	int size;		 /**< Size in bytes */

- +	int low_mark;		 /**< Low water mark */

- +	int high_mark;		 /**< High water mark */

- +	enum {

- +		_DRM_PAGE_ALIGN = 0x01,	/**< Align on page boundaries for DMA */

- +		_DRM_AGP_BUFFER = 0x02,	/**< Buffer is in AGP space */

- +		_DRM_SG_BUFFER = 0x04,	/**< Scatter/gather memory buffer */

- +		_DRM_FB_BUFFER = 0x08,	/**< Buffer is in frame buffer */

- +		_DRM_PCI_BUFFER_RO = 0x10 /**< Map PCI DMA buffer read-only */

- +	} flags;

- +	unsigned long agp_start; /**<

- +				  * Start address of where the AGP buffers are

- +				  * in the AGP aperture

- +				  */

- +};

- +

- +/*

- + * DRM_IOCTL_INFO_BUFS ioctl argument type.

- + */

- +struct drm_buf_info {

- +	int count;		/**< Entries in list */

- +	struct drm_buf_desc *list;

- +};

- +

- +/*

- + * DRM_IOCTL_FREE_BUFS ioctl argument type.

- + */

- +struct drm_buf_free {

- +	int count;

- +	int *list;

- +};

- +

- +/*

- + * Buffer information

- + *

- + * \sa drm_buf_map.

- + */

- +struct drm_buf_pub {

- +	int idx;		       /**< Index into the master buffer list */

- +	int total;		       /**< Buffer size */

- +	int used;		       /**< Amount of buffer in use (for DMA) */

- +	void *address;	       /**< Address of buffer */

- +};

- +

- +/*

- + * DRM_IOCTL_MAP_BUFS ioctl argument type.

- + */

- +struct drm_buf_map {

- +	int count;		/**< Length of the buffer list */

- +#ifdef __cplusplus

- +	void *virt;

- +#else

- +	void *virtual;		/**< Mmap'd area in user-virtual */

- +#endif

- +	struct drm_buf_pub *list;	/**< Buffer information */

- +};

- +

- +/*

- + * DRM_IOCTL_DMA ioctl argument type.

- + *

- + * Indices here refer to the offset into the buffer list in drm_buf_get.

- + *

- + * \sa drmDMA().

- + */

- +struct drm_dma {

- +	int context;			  /**< Context handle */

- +	int send_count;			  /**< Number of buffers to send */

- +	int *send_indices;	  /**< List of handles to buffers */

- +	int *send_sizes;		  /**< Lengths of data to send */

- +	enum drm_dma_flags flags;	  /**< Flags */

- +	int request_count;		  /**< Number of buffers requested */

- +	int request_size;		  /**< Desired size for buffers */

- +	int *request_indices;	  /**< Buffer information */

- +	int *request_sizes;

- +	int granted_count;		  /**< Number of buffers granted */

- +};

- +

- +enum drm_ctx_flags {

- +	_DRM_CONTEXT_PRESERVED = 0x01,

- +	_DRM_CONTEXT_2DONLY = 0x02

- +};

- +

- +/*

- + * DRM_IOCTL_ADD_CTX ioctl argument type.

- + *

- + * \sa drmCreateContext() and drmDestroyContext().

- + */

- +struct drm_ctx {

- +	drm_context_t handle;

- +	enum drm_ctx_flags flags;

- +};

- +

- +/*

- + * DRM_IOCTL_RES_CTX ioctl argument type.

- + */

- +struct drm_ctx_res {

- +	int count;

- +	struct drm_ctx *contexts;

- +};

- +

- +/*

- + * DRM_IOCTL_ADD_DRAW and DRM_IOCTL_RM_DRAW ioctl argument type.

- + */

- +struct drm_draw {

- +	drm_drawable_t handle;

- +};

- +

- +/*

- + * DRM_IOCTL_UPDATE_DRAW ioctl argument type.

- + */

- +typedef enum {

- +	DRM_DRAWABLE_CLIPRECTS

- +} drm_drawable_info_type_t;

- +

- +struct drm_update_draw {

- +	drm_drawable_t handle;

- +	unsigned int type;

- +	unsigned int num;

- +	unsigned long long data;

- +};

- +

- +/*

- + * DRM_IOCTL_GET_MAGIC and DRM_IOCTL_AUTH_MAGIC ioctl argument type.

- + */

- +struct drm_auth {

- +	drm_magic_t magic;

- +};

- +

- +/*

- + * DRM_IOCTL_IRQ_BUSID ioctl argument type.

- + *

- + * \sa drmGetInterruptFromBusID().

- + */

- +struct drm_irq_busid {

- +	int irq;	/**< IRQ number */

- +	int busnum;	/**< bus number */

- +	int devnum;	/**< device number */

- +	int funcnum;	/**< function number */

- +};

- +

- +enum drm_vblank_seq_type {

- +	_DRM_VBLANK_ABSOLUTE = 0x0,	/**< Wait for specific vblank sequence number */

- +	_DRM_VBLANK_RELATIVE = 0x1,	/**< Wait for given number of vblanks */

- +	/* bits 1-6 are reserved for high crtcs */

- +	_DRM_VBLANK_HIGH_CRTC_MASK = 0x0000003e,

- +	_DRM_VBLANK_EVENT = 0x4000000,   /**< Send event instead of blocking */

- +	_DRM_VBLANK_FLIP = 0x8000000,   /**< Scheduled buffer swap should flip */

- +	_DRM_VBLANK_NEXTONMISS = 0x10000000,	/**< If missed, wait for next vblank */

- +	_DRM_VBLANK_SECONDARY = 0x20000000,	/**< Secondary display controller */

- +	_DRM_VBLANK_SIGNAL = 0x40000000	/**< Send signal instead of blocking, unsupported */

- +};

- +#define _DRM_VBLANK_HIGH_CRTC_SHIFT 1

- +

- +#define _DRM_VBLANK_TYPES_MASK (_DRM_VBLANK_ABSOLUTE | _DRM_VBLANK_RELATIVE)

- +#define _DRM_VBLANK_FLAGS_MASK (_DRM_VBLANK_EVENT | _DRM_VBLANK_SIGNAL | \

- +				_DRM_VBLANK_SECONDARY | _DRM_VBLANK_NEXTONMISS)

- +

- +struct drm_wait_vblank_request {

- +	enum drm_vblank_seq_type type;

- +	unsigned int sequence;

- +	unsigned long signal;

- +};

- +

- +struct drm_wait_vblank_reply {

- +	enum drm_vblank_seq_type type;

- +	unsigned int sequence;

- +	long tval_sec;

- +	long tval_usec;

- +};

- +

- +/*

- + * DRM_IOCTL_WAIT_VBLANK ioctl argument type.

- + *

- + * \sa drmWaitVBlank().

- + */

- +union drm_wait_vblank {

- +	struct drm_wait_vblank_request request;

- +	struct drm_wait_vblank_reply reply;

- +};

- +

- +#define _DRM_PRE_MODESET 1

- +#define _DRM_POST_MODESET 2

- +

- +/*

- + * DRM_IOCTL_MODESET_CTL ioctl argument type

- + *

- + * \sa drmModesetCtl().

- + */

- +struct drm_modeset_ctl {

- +	__u32 crtc;

- +	__u32 cmd;

- +};

- +

- +/*

- + * DRM_IOCTL_AGP_ENABLE ioctl argument type.

- + *

- + * \sa drmAgpEnable().

- + */

- +struct drm_agp_mode {

- +	unsigned long mode;	/**< AGP mode */

- +};

- +

- +/*

- + * DRM_IOCTL_AGP_ALLOC and DRM_IOCTL_AGP_FREE ioctls argument type.

- + *

- + * \sa drmAgpAlloc() and drmAgpFree().

- + */

- +struct drm_agp_buffer {

- +	unsigned long size;	/**< In bytes -- will round to page boundary */

- +	unsigned long handle;	/**< Used for binding / unbinding */

- +	unsigned long type;	/**< Type of memory to allocate */

- +	unsigned long physical;	/**< Physical used by i810 */

- +};

- +

- +/*

- + * DRM_IOCTL_AGP_BIND and DRM_IOCTL_AGP_UNBIND ioctls argument type.

- + *

- + * \sa drmAgpBind() and drmAgpUnbind().

- + */

- +struct drm_agp_binding {

- +	unsigned long handle;	/**< From drm_agp_buffer */

- +	unsigned long offset;	/**< In bytes -- will round to page boundary */

- +};

- +

- +/*

- + * DRM_IOCTL_AGP_INFO ioctl argument type.

- + *

- + * \sa drmAgpVersionMajor(), drmAgpVersionMinor(), drmAgpGetMode(),

- + * drmAgpBase(), drmAgpSize(), drmAgpMemoryUsed(), drmAgpMemoryAvail(),

- + * drmAgpVendorId() and drmAgpDeviceId().

- + */

- +struct drm_agp_info {

- +	int agp_version_major;

- +	int agp_version_minor;

- +	unsigned long mode;

- +	unsigned long aperture_base;	/* physical address */

- +	unsigned long aperture_size;	/* bytes */

- +	unsigned long memory_allowed;	/* bytes */

- +	unsigned long memory_used;

- +

- +	/* PCI information */

- +	unsigned short id_vendor;

- +	unsigned short id_device;

- +};

- +

- +/*

- + * DRM_IOCTL_SG_ALLOC ioctl argument type.

- + */

- +struct drm_scatter_gather {

- +	unsigned long size;	/**< In bytes -- will round to page boundary */

- +	unsigned long handle;	/**< Used for mapping / unmapping */

- +};

- +

- +/*

- + * DRM_IOCTL_SET_VERSION ioctl argument type.

- + */

- +struct drm_set_version {

- +	int drm_di_major;

- +	int drm_di_minor;

- +	int drm_dd_major;

- +	int drm_dd_minor;

- +};

- +

- +/* DRM_IOCTL_GEM_CLOSE ioctl argument type */

- +struct drm_gem_close {

- +	/** Handle of the object to be closed. */

- +	__u32 handle;

- +	__u32 pad;

- +};

- +

- +/* DRM_IOCTL_GEM_FLINK ioctl argument type */

- +struct drm_gem_flink {

- +	/** Handle for the object being named */

- +	__u32 handle;

- +

- +	/** Returned global name */

- +	__u32 name;

- +};

- +

- +/* DRM_IOCTL_GEM_OPEN ioctl argument type */

- +struct drm_gem_open {

- +	/** Name of object being opened */

- +	__u32 name;

- +

- +	/** Returned handle for the object */

- +	__u32 handle;

- +

- +	/** Returned size of the object */

- +	__u64 size;

- +};

- +

- +/**

- + * DRM_CAP_DUMB_BUFFER

- + *

- + * If set to 1, the driver supports creating dumb buffers via the

- + * &DRM_IOCTL_MODE_CREATE_DUMB ioctl.

- + */

- +#define DRM_CAP_DUMB_BUFFER		0x1

- +/**

- + * DRM_CAP_VBLANK_HIGH_CRTC

- + *

- + * If set to 1, the kernel supports specifying a :ref:`CRTC index<crtc_index>`

- + * in the high bits of &drm_wait_vblank_request.type.

- + *

- + * Starting kernel version 2.6.39, this capability is always set to 1.

- + */

- +#define DRM_CAP_VBLANK_HIGH_CRTC	0x2

- +/**

- + * DRM_CAP_DUMB_PREFERRED_DEPTH

- + *

- + * The preferred bit depth for dumb buffers.

- + *

- + * The bit depth is the number of bits used to indicate the color of a single

- + * pixel excluding any padding. This is different from the number of bits per

- + * pixel. For instance, XRGB8888 has a bit depth of 24 but has 32 bits per

- + * pixel.

- + *

- + * Note that this preference only applies to dumb buffers, it's irrelevant for

- + * other types of buffers.

- + */

- +#define DRM_CAP_DUMB_PREFERRED_DEPTH	0x3

- +/**

- + * DRM_CAP_DUMB_PREFER_SHADOW

- + *

- + * If set to 1, the driver prefers userspace to render to a shadow buffer

- + * instead of directly rendering to a dumb buffer. For best speed, userspace

- + * should do streaming ordered memory copies into the dumb buffer and never

- + * read from it.

- + *

- + * Note that this preference only applies to dumb buffers, it's irrelevant for

- + * other types of buffers.

- + */

- +#define DRM_CAP_DUMB_PREFER_SHADOW	0x4

- +/**

- + * DRM_CAP_PRIME

- + *

- + * Bitfield of supported PRIME sharing capabilities. See &DRM_PRIME_CAP_IMPORT

- + * and &DRM_PRIME_CAP_EXPORT.

- + *

- + * PRIME buffers are exposed as dma-buf file descriptors. See

- + * Documentation/gpu/drm-mm.rst, section "PRIME Buffer Sharing".

- + */

- +#define DRM_CAP_PRIME			0x5

- +/**

- + * DRM_PRIME_CAP_IMPORT

- + *

- + * If this bit is set in &DRM_CAP_PRIME, the driver supports importing PRIME

- + * buffers via the &DRM_IOCTL_PRIME_FD_TO_HANDLE ioctl.

- + */

- +#define  DRM_PRIME_CAP_IMPORT		0x1

- +/**

- + * DRM_PRIME_CAP_EXPORT

- + *

- + * If this bit is set in &DRM_CAP_PRIME, the driver supports exporting PRIME

- + * buffers via the &DRM_IOCTL_PRIME_HANDLE_TO_FD ioctl.

- + */

- +#define  DRM_PRIME_CAP_EXPORT		0x2

- +/**

- + * DRM_CAP_TIMESTAMP_MONOTONIC

- + *

- + * If set to 0, the kernel will report timestamps with ``CLOCK_REALTIME`` in

- + * struct drm_event_vblank. If set to 1, the kernel will report timestamps with

- + * ``CLOCK_MONOTONIC``. See ``clock_gettime(2)`` for the definition of these

- + * clocks.

- + *

- + * Starting from kernel version 2.6.39, the default value for this capability

- + * is 1. Starting kernel version 4.15, this capability is always set to 1.

- + */

- +#define DRM_CAP_TIMESTAMP_MONOTONIC	0x6

- +/**

- + * DRM_CAP_ASYNC_PAGE_FLIP

- + *

- + * If set to 1, the driver supports &DRM_MODE_PAGE_FLIP_ASYNC.

- + */

- +#define DRM_CAP_ASYNC_PAGE_FLIP		0x7

- +/**

- + * DRM_CAP_CURSOR_WIDTH

- + *

- + * The ``CURSOR_WIDTH`` and ``CURSOR_HEIGHT`` capabilities return a valid

- + * width x height combination for the hardware cursor. The intention is that a

- + * hardware agnostic userspace can query a cursor plane size to use.

- + *

- + * Note that the cross-driver contract is to merely return a valid size;

- + * drivers are free to attach another meaning on top, eg. i915 returns the

- + * maximum plane size.

- + */

- +#define DRM_CAP_CURSOR_WIDTH		0x8

- +/**

- + * DRM_CAP_CURSOR_HEIGHT

- + *

- + * See &DRM_CAP_CURSOR_WIDTH.

- + */

- +#define DRM_CAP_CURSOR_HEIGHT		0x9

- +/**

- + * DRM_CAP_ADDFB2_MODIFIERS

- + *

- + * If set to 1, the driver supports supplying modifiers in the

- + * &DRM_IOCTL_MODE_ADDFB2 ioctl.

- + */

- +#define DRM_CAP_ADDFB2_MODIFIERS	0x10

- +/**

- + * DRM_CAP_PAGE_FLIP_TARGET

- + *

- + * If set to 1, the driver supports the &DRM_MODE_PAGE_FLIP_TARGET_ABSOLUTE and

- + * &DRM_MODE_PAGE_FLIP_TARGET_RELATIVE flags in

- + * &drm_mode_crtc_page_flip_target.flags for the &DRM_IOCTL_MODE_PAGE_FLIP

- + * ioctl.

- + */

- +#define DRM_CAP_PAGE_FLIP_TARGET	0x11

- +/**

- + * DRM_CAP_CRTC_IN_VBLANK_EVENT

- + *

- + * If set to 1, the kernel supports reporting the CRTC ID in

- + * &drm_event_vblank.crtc_id for the &DRM_EVENT_VBLANK and

- + * &DRM_EVENT_FLIP_COMPLETE events.

- + *

- + * Starting kernel version 4.12, this capability is always set to 1.

- + */

- +#define DRM_CAP_CRTC_IN_VBLANK_EVENT	0x12

- +/**

- + * DRM_CAP_SYNCOBJ

- + *

- + * If set to 1, the driver supports sync objects. See

- + * Documentation/gpu/drm-mm.rst, section "DRM Sync Objects".

- + */

- +#define DRM_CAP_SYNCOBJ		0x13

- +/**

- + * DRM_CAP_SYNCOBJ_TIMELINE

- + *

- + * If set to 1, the driver supports timeline operations on sync objects. See

- + * Documentation/gpu/drm-mm.rst, section "DRM Sync Objects".

- + */

- +#define DRM_CAP_SYNCOBJ_TIMELINE	0x14

- +

- +/* DRM_IOCTL_GET_CAP ioctl argument type */

- +struct drm_get_cap {

- +	__u64 capability;

- +	__u64 value;

- +};

- +

- +/**

- + * DRM_CLIENT_CAP_STEREO_3D

- + *

- + * If set to 1, the DRM core will expose the stereo 3D capabilities of the

- + * monitor by advertising the supported 3D layouts in the flags of struct

- + * drm_mode_modeinfo. See ``DRM_MODE_FLAG_3D_*``.

- + *

- + * This capability is always supported for all drivers starting from kernel

- + * version 3.13.

- + */

- +#define DRM_CLIENT_CAP_STEREO_3D	1

- +

- +/**

- + * DRM_CLIENT_CAP_UNIVERSAL_PLANES

- + *

- + * If set to 1, the DRM core will expose all planes (overlay, primary, and

- + * cursor) to userspace.

- + *

- + * This capability has been introduced in kernel version 3.15. Starting from

- + * kernel version 3.17, this capability is always supported for all drivers.

- + */

- +#define DRM_CLIENT_CAP_UNIVERSAL_PLANES  2

- +

- +/**

- + * DRM_CLIENT_CAP_ATOMIC

- + *

- + * If set to 1, the DRM core will expose atomic properties to userspace. This

- + * implicitly enables &DRM_CLIENT_CAP_UNIVERSAL_PLANES and

- + * &DRM_CLIENT_CAP_ASPECT_RATIO.