xref: /rockchip-linux_mpp/osal/linux/drm.h (revision 437bfbeb9567cca9cd9080e3f6954aa9d6a94f18)

/**
 * \file drm.h
 * Header for the Direct Rendering Manager
 *
 * \author Rickard E. (Rik) Faith <faith@valinux.com>
 *
 * \par Acknowledgments:
 * Dec 1999, Richard Henderson <rth@twiddle.net>, move to generic \c 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(__KERNEL__)

#include <linux/types.h>
#include <asm/ioctl.h>
typedef unsigned int drm_handle_t;

#elif defined(__linux__)

#include <linux/types.h>
#include <asm/ioctl.h>
typedef unsigned int drm_handle_t;

#else /* One of the BSDs */

#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 __user

#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 __user *name;    /**< Name of driver */
    __kernel_size_t date_len;     /**< Length of date buffer */
    char __user *date;    /**< User-space buffer to hold date */
    __kernel_size_t desc_len;     /**< Length of desc buffer */
    char __user *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 __user *unique;      /**< Unique name for driver instantiation */
};

struct drm_list {
    int count;        /**< Length of user-space structures */
    struct drm_version __user *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 __user *list;
};

/**
 * DRM_IOCTL_FREE_BUFS ioctl argument type.
 */
struct drm_buf_free {
    int count;
    int __user *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 __user *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 __user *virt;
#else
    void __user *virtual;       /**< Mmap'd area in user-virtual */
#endif
    struct drm_buf_pub __user *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 __user *send_indices;     /**< List of handles to buffers */
    int __user *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 __user *request_indices;      /**< Buffer information */
    int __user *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 __user *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;
};

#define DRM_CAP_DUMB_BUFFER     0x1
#define DRM_CAP_VBLANK_HIGH_CRTC    0x2
#define DRM_CAP_DUMB_PREFERRED_DEPTH    0x3
#define DRM_CAP_DUMB_PREFER_SHADOW  0x4
#define DRM_CAP_PRIME           0x5
#define  DRM_PRIME_CAP_IMPORT       0x1
#define  DRM_PRIME_CAP_EXPORT       0x2
#define DRM_CAP_TIMESTAMP_MONOTONIC 0x6
#define DRM_CAP_ASYNC_PAGE_FLIP     0x7
/*
 * The CURSOR_WIDTH and CURSOR_HEIGHT capabilities return a valid widthxheight
 * 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
#define DRM_CAP_CURSOR_HEIGHT       0x9
#define DRM_CAP_ADDFB2_MODIFIERS    0x10
#define DRM_CAP_PAGE_FLIP_TARGET    0x11
#define DRM_CAP_CRTC_IN_VBLANK_EVENT    0x12
#define DRM_CAP_SYNCOBJ     0x13

/** 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.
 */
#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.
 */
#define DRM_CLIENT_CAP_UNIVERSAL_PLANES  2

/**
 * DRM_CLIENT_CAP_ATOMIC
 *
 * If set to 1, the DRM core will expose atomic properties to userspace
 */
#define DRM_CLIENT_CAP_ATOMIC   3

/**
 * DRM_CLIENT_CAP_ASPECT_RATIO
 *
 * If set to 1, the DRM core will provide aspect ratio information in modes.
 */
#define DRM_CLIENT_CAP_ASPECT_RATIO    4

/**
 * DRM_CLIENT_CAP_WRITEBACK_CONNECTORS
 *
 * If set to 1, the DRM core will expose special connectors to be used for
 * writing back to memory the scene setup in the commit. Depends on client
 * also supporting DRM_CLIENT_CAP_ATOMIC
 */
#define DRM_CLIENT_CAP_WRITEBACK_CONNECTORS 5

/*
 * DRM_CLIENT_CAP_SHARE_PLANES
 *
 * If set to 1, the DRM core will expose share planes to userspace.
 */
#define DRM_CLIENT_CAP_SHARE_PLANES 6

/** DRM_IOCTL_SET_CLIENT_CAP ioctl argument type */
struct drm_set_client_cap {
    __u64 capability;
    __u64 value;
};

#define DRM_RDWR O_RDWR
#define DRM_CLOEXEC O_CLOEXEC
struct drm_prime_handle {
    __u32 handle;

    /** Flags.. only applicable for handle->fd */
    __u32 flags;

    /** Returned dmabuf file descriptor */
    __s32 fd;
};

struct drm_syncobj_create {
    __u32 handle;
#define DRM_SYNCOBJ_CREATE_SIGNALED (1 << 0)
    __u32 flags;
};

struct drm_syncobj_destroy {
    __u32 handle;
    __u32 pad;
};

#define DRM_SYNCOBJ_FD_TO_HANDLE_FLAGS_IMPORT_SYNC_FILE (1 << 0)
#define DRM_SYNCOBJ_HANDLE_TO_FD_FLAGS_EXPORT_SYNC_FILE (1 << 0)
struct drm_syncobj_handle {
    __u32 handle;
    __u32 flags;

    __s32 fd;
    __u32 pad;
};

#define DRM_SYNCOBJ_WAIT_FLAGS_WAIT_ALL (1 << 0)
#define DRM_SYNCOBJ_WAIT_FLAGS_WAIT_FOR_SUBMIT (1 << 1)
struct drm_syncobj_wait {
    __u64 handles;
    /* absolute timeout */
    __s64 timeout_nsec;
    __u32 count_handles;
    __u32 flags;
    __u32 first_signaled; /* only valid when not waiting all */
    __u32 pad;
};

struct drm_syncobj_array {
    __u64 handles;
    __u32 count_handles;
    __u32 pad;
};

/* Query current scanout sequence number */
struct drm_crtc_get_sequence {
    __u32 crtc_id;      /* requested crtc_id */
    __u32 active;       /* return: crtc output is active */
    __u64 sequence;     /* return: most recent vblank sequence */
    __s64 sequence_ns;  /* return: most recent time of first pixel out */
};

/* Queue event to be delivered at specified sequence. Time stamp marks
 * when the first pixel of the refresh cycle leaves the display engine
 * for the display
 */
#define DRM_CRTC_SEQUENCE_RELATIVE      0x00000001  /* sequence is relative to current */
#define DRM_CRTC_SEQUENCE_NEXT_ON_MISS      0x00000002  /* Use next sequence if we've missed */

struct drm_crtc_queue_sequence {
    __u32 crtc_id;
    __u32 flags;
    __u64 sequence;     /* on input, target sequence. on output, actual sequence */
    __u64 user_data;    /* user data passed to event */
};

#if defined(__cplusplus)
}
#endif

#include "drm_mode.h"

#if defined(__cplusplus)
extern "C" {
#endif

#define DRM_IOCTL_BASE          'd'
#define DRM_IO(nr)          _IO(DRM_IOCTL_BASE,nr)
#define DRM_IOR(nr,type)        _IOR(DRM_IOCTL_BASE,nr,type)
#define DRM_IOW(nr,type)        _IOW(DRM_IOCTL_BASE,nr,type)
#define DRM_IOWR(nr,type)       _IOWR(DRM_IOCTL_BASE,nr,type)

#define DRM_IOCTL_VERSION       DRM_IOWR(0x00, struct drm_version)
#define DRM_IOCTL_GET_UNIQUE        DRM_IOWR(0x01, struct drm_unique)
#define DRM_IOCTL_GET_MAGIC     DRM_IOR( 0x02, struct drm_auth)
#define DRM_IOCTL_IRQ_BUSID     DRM_IOWR(0x03, struct drm_irq_busid)
#define DRM_IOCTL_GET_MAP               DRM_IOWR(0x04, struct drm_map)
#define DRM_IOCTL_GET_CLIENT            DRM_IOWR(0x05, struct drm_client)
#define DRM_IOCTL_GET_STATS             DRM_IOR( 0x06, struct drm_stats)
#define DRM_IOCTL_SET_VERSION       DRM_IOWR(0x07, struct drm_set_version)
#define DRM_IOCTL_MODESET_CTL           DRM_IOW(0x08, struct drm_modeset_ctl)
#define DRM_IOCTL_GEM_CLOSE     DRM_IOW (0x09, struct drm_gem_close)
#define DRM_IOCTL_GEM_FLINK     DRM_IOWR(0x0a, struct drm_gem_flink)
#define DRM_IOCTL_GEM_OPEN      DRM_IOWR(0x0b, struct drm_gem_open)
#define DRM_IOCTL_GET_CAP       DRM_IOWR(0x0c, struct drm_get_cap)
#define DRM_IOCTL_SET_CLIENT_CAP    DRM_IOW( 0x0d, struct drm_set_client_cap)

#define DRM_IOCTL_SET_UNIQUE        DRM_IOW( 0x10, struct drm_unique)
#define DRM_IOCTL_AUTH_MAGIC        DRM_IOW( 0x11, struct drm_auth)
#define DRM_IOCTL_BLOCK         DRM_IOWR(0x12, struct drm_block)
#define DRM_IOCTL_UNBLOCK       DRM_IOWR(0x13, struct drm_block)
#define DRM_IOCTL_CONTROL       DRM_IOW( 0x14, struct drm_control)
#define DRM_IOCTL_ADD_MAP       DRM_IOWR(0x15, struct drm_map)
#define DRM_IOCTL_ADD_BUFS      DRM_IOWR(0x16, struct drm_buf_desc)
#define DRM_IOCTL_MARK_BUFS     DRM_IOW( 0x17, struct drm_buf_desc)
#define DRM_IOCTL_INFO_BUFS     DRM_IOWR(0x18, struct drm_buf_info)
#define DRM_IOCTL_MAP_BUFS      DRM_IOWR(0x19, struct drm_buf_map)
#define DRM_IOCTL_FREE_BUFS     DRM_IOW( 0x1a, struct drm_buf_free)

#define DRM_IOCTL_RM_MAP        DRM_IOW( 0x1b, struct drm_map)

#define DRM_IOCTL_SET_SAREA_CTX     DRM_IOW( 0x1c, struct drm_ctx_priv_map)
#define DRM_IOCTL_GET_SAREA_CTX     DRM_IOWR(0x1d, struct drm_ctx_priv_map)

#define DRM_IOCTL_SET_MASTER            DRM_IO(0x1e)
#define DRM_IOCTL_DROP_MASTER           DRM_IO(0x1f)

#define DRM_IOCTL_ADD_CTX       DRM_IOWR(0x20, struct drm_ctx)
#define DRM_IOCTL_RM_CTX        DRM_IOWR(0x21, struct drm_ctx)
#define DRM_IOCTL_MOD_CTX       DRM_IOW( 0x22, struct drm_ctx)
#define DRM_IOCTL_GET_CTX       DRM_IOWR(0x23, struct drm_ctx)
#define DRM_IOCTL_SWITCH_CTX        DRM_IOW( 0x24, struct drm_ctx)
#define DRM_IOCTL_NEW_CTX       DRM_IOW( 0x25, struct drm_ctx)
#define DRM_IOCTL_RES_CTX       DRM_IOWR(0x26, struct drm_ctx_res)
#define DRM_IOCTL_ADD_DRAW      DRM_IOWR(0x27, struct drm_draw)
#define DRM_IOCTL_RM_DRAW       DRM_IOWR(0x28, struct drm_draw)
#define DRM_IOCTL_DMA           DRM_IOWR(0x29, struct drm_dma)
#define DRM_IOCTL_LOCK          DRM_IOW( 0x2a, struct drm_lock)
#define DRM_IOCTL_UNLOCK        DRM_IOW( 0x2b, struct drm_lock)
#define DRM_IOCTL_FINISH        DRM_IOW( 0x2c, struct drm_lock)

#define DRM_IOCTL_PRIME_HANDLE_TO_FD    DRM_IOWR(0x2d, struct drm_prime_handle)
#define DRM_IOCTL_PRIME_FD_TO_HANDLE    DRM_IOWR(0x2e, struct drm_prime_handle)

#define DRM_IOCTL_AGP_ACQUIRE       DRM_IO(  0x30)
#define DRM_IOCTL_AGP_RELEASE       DRM_IO(  0x31)
#define DRM_IOCTL_AGP_ENABLE        DRM_IOW( 0x32, struct drm_agp_mode)
#define DRM_IOCTL_AGP_INFO      DRM_IOR( 0x33, struct drm_agp_info)
#define DRM_IOCTL_AGP_ALLOC     DRM_IOWR(0x34, struct drm_agp_buffer)
#define DRM_IOCTL_AGP_FREE      DRM_IOW( 0x35, struct drm_agp_buffer)
#define DRM_IOCTL_AGP_BIND      DRM_IOW( 0x36, struct drm_agp_binding)
#define DRM_IOCTL_AGP_UNBIND        DRM_IOW( 0x37, struct drm_agp_binding)

#define DRM_IOCTL_SG_ALLOC      DRM_IOWR(0x38, struct drm_scatter_gather)
#define DRM_IOCTL_SG_FREE       DRM_IOW( 0x39, struct drm_scatter_gather)

#define DRM_IOCTL_WAIT_VBLANK       DRM_IOWR(0x3a, union drm_wait_vblank)

#define DRM_IOCTL_CRTC_GET_SEQUENCE DRM_IOWR(0x3b, struct drm_crtc_get_sequence)
#define DRM_IOCTL_CRTC_QUEUE_SEQUENCE   DRM_IOWR(0x3c, struct drm_crtc_queue_sequence)

#define DRM_IOCTL_UPDATE_DRAW       DRM_IOW(0x3f, struct drm_update_draw)

#define DRM_IOCTL_MODE_GETRESOURCES DRM_IOWR(0xA0, struct drm_mode_card_res)
#define DRM_IOCTL_MODE_GETCRTC      DRM_IOWR(0xA1, struct drm_mode_crtc)
#define DRM_IOCTL_MODE_SETCRTC      DRM_IOWR(0xA2, struct drm_mode_crtc)
#define DRM_IOCTL_MODE_CURSOR       DRM_IOWR(0xA3, struct drm_mode_cursor)
#define DRM_IOCTL_MODE_GETGAMMA     DRM_IOWR(0xA4, struct drm_mode_crtc_lut)
#define DRM_IOCTL_MODE_SETGAMMA     DRM_IOWR(0xA5, struct drm_mode_crtc_lut)
#define DRM_IOCTL_MODE_GETENCODER   DRM_IOWR(0xA6, struct drm_mode_get_encoder)
#define DRM_IOCTL_MODE_GETCONNECTOR DRM_IOWR(0xA7, struct drm_mode_get_connector)
#define DRM_IOCTL_MODE_ATTACHMODE   DRM_IOWR(0xA8, struct drm_mode_mode_cmd) /* deprecated (never worked) */
#define DRM_IOCTL_MODE_DETACHMODE   DRM_IOWR(0xA9, struct drm_mode_mode_cmd) /* deprecated (never worked) */

#define DRM_IOCTL_MODE_GETPROPERTY  DRM_IOWR(0xAA, struct drm_mode_get_property)
#define DRM_IOCTL_MODE_SETPROPERTY  DRM_IOWR(0xAB, struct drm_mode_connector_set_property)
#define DRM_IOCTL_MODE_GETPROPBLOB  DRM_IOWR(0xAC, struct drm_mode_get_blob)
#define DRM_IOCTL_MODE_GETFB        DRM_IOWR(0xAD, struct drm_mode_fb_cmd)
#define DRM_IOCTL_MODE_ADDFB        DRM_IOWR(0xAE, struct drm_mode_fb_cmd)
#define DRM_IOCTL_MODE_RMFB     DRM_IOWR(0xAF, unsigned int)
#define DRM_IOCTL_MODE_PAGE_FLIP    DRM_IOWR(0xB0, struct drm_mode_crtc_page_flip)
#define DRM_IOCTL_MODE_DIRTYFB      DRM_IOWR(0xB1, struct drm_mode_fb_dirty_cmd)

#define DRM_IOCTL_MODE_CREATE_DUMB DRM_IOWR(0xB2, struct drm_mode_create_dumb)
#define DRM_IOCTL_MODE_MAP_DUMB    DRM_IOWR(0xB3, struct drm_mode_map_dumb)
#define DRM_IOCTL_MODE_DESTROY_DUMB    DRM_IOWR(0xB4, struct drm_mode_destroy_dumb)
#define DRM_IOCTL_MODE_GETPLANERESOURCES DRM_IOWR(0xB5, struct drm_mode_get_plane_res)
#define DRM_IOCTL_MODE_GETPLANE DRM_IOWR(0xB6, struct drm_mode_get_plane)
#define DRM_IOCTL_MODE_SETPLANE DRM_IOWR(0xB7, struct drm_mode_set_plane)
#define DRM_IOCTL_MODE_ADDFB2       DRM_IOWR(0xB8, struct drm_mode_fb_cmd2)
#define DRM_IOCTL_MODE_OBJ_GETPROPERTIES    DRM_IOWR(0xB9, struct drm_mode_obj_get_properties)
#define DRM_IOCTL_MODE_OBJ_SETPROPERTY  DRM_IOWR(0xBA, struct drm_mode_obj_set_property)
#define DRM_IOCTL_MODE_CURSOR2      DRM_IOWR(0xBB, struct drm_mode_cursor2)
#define DRM_IOCTL_MODE_ATOMIC       DRM_IOWR(0xBC, struct drm_mode_atomic)
#define DRM_IOCTL_MODE_CREATEPROPBLOB   DRM_IOWR(0xBD, struct drm_mode_create_blob)
#define DRM_IOCTL_MODE_DESTROYPROPBLOB  DRM_IOWR(0xBE, struct drm_mode_destroy_blob)

#define DRM_IOCTL_SYNCOBJ_CREATE    DRM_IOWR(0xBF, struct drm_syncobj_create)
#define DRM_IOCTL_SYNCOBJ_DESTROY   DRM_IOWR(0xC0, struct drm_syncobj_destroy)
#define DRM_IOCTL_SYNCOBJ_HANDLE_TO_FD  DRM_IOWR(0xC1, struct drm_syncobj_handle)
#define DRM_IOCTL_SYNCOBJ_FD_TO_HANDLE  DRM_IOWR(0xC2, struct drm_syncobj_handle)
#define DRM_IOCTL_SYNCOBJ_WAIT      DRM_IOWR(0xC3, struct drm_syncobj_wait)
#define DRM_IOCTL_SYNCOBJ_RESET     DRM_IOWR(0xC4, struct drm_syncobj_array)
#define DRM_IOCTL_SYNCOBJ_SIGNAL    DRM_IOWR(0xC5, struct drm_syncobj_array)

#define DRM_IOCTL_MODE_CREATE_LEASE DRM_IOWR(0xC6, struct drm_mode_create_lease)
#define DRM_IOCTL_MODE_LIST_LESSEES DRM_IOWR(0xC7, struct drm_mode_list_lessees)
#define DRM_IOCTL_MODE_GET_LEASE    DRM_IOWR(0xC8, struct drm_mode_get_lease)
#define DRM_IOCTL_MODE_REVOKE_LEASE DRM_IOWR(0xC9, struct drm_mode_revoke_lease)

/**
 * Device specific ioctls should only be in their respective headers
 * The device specific ioctl range is from 0x40 to 0x9f.
 * Generic IOCTLS restart at 0xA0.
 *
 * \sa drmCommandNone(), drmCommandRead(), drmCommandWrite(), and
 * drmCommandReadWrite().
 */
#define DRM_COMMAND_BASE                0x40
#define DRM_COMMAND_END         0xA0

/**
 * Header for events written back to userspace on the drm fd.  The
 * type defines the type of event, the length specifies the total
 * length of the event (including the header), and user_data is
 * typically a 64 bit value passed with the ioctl that triggered the
 * event.  A read on the drm fd will always only return complete
 * events, that is, if for example the read buffer is 100 bytes, and
 * there are two 64 byte events pending, only one will be returned.
 *
 * Event types 0 - 0x7fffffff are generic drm events, 0x80000000 and
 * up are chipset specific.
 */
struct drm_event {
    __u32 type;
    __u32 length;
};

#define DRM_EVENT_VBLANK 0x01
#define DRM_EVENT_FLIP_COMPLETE 0x02
#define DRM_EVENT_CRTC_SEQUENCE 0x03

struct drm_event_vblank {
    struct drm_event base;
    __u64 user_data;
    __u32 tv_sec;
    __u32 tv_usec;
    __u32 sequence;
    __u32 crtc_id; /* 0 on older kernels that do not support this */
};

/* Event delivered at sequence. Time stamp marks when the first pixel
 * of the refresh cycle leaves the display engine for the display
 */
struct drm_event_crtc_sequence {
    struct drm_event    base;
    __u64           user_data;
    __s64           time_ns;
    __u64           sequence;
};

/* typedef area */
#ifndef __KERNEL__
typedef struct drm_clip_rect drm_clip_rect_t;
typedef struct drm_drawable_info drm_drawable_info_t;
typedef struct drm_tex_region drm_tex_region_t;
typedef struct drm_hw_lock drm_hw_lock_t;
typedef struct drm_version drm_version_t;
typedef struct drm_unique drm_unique_t;
typedef struct drm_list drm_list_t;
typedef struct drm_block drm_block_t;
typedef struct drm_control drm_control_t;
typedef enum drm_map_type drm_map_type_t;
typedef enum drm_map_flags drm_map_flags_t;
typedef struct drm_ctx_priv_map drm_ctx_priv_map_t;
typedef struct drm_map drm_map_t;
typedef struct drm_client drm_client_t;
typedef enum drm_stat_type drm_stat_type_t;
typedef struct drm_stats drm_stats_t;
typedef enum drm_lock_flags drm_lock_flags_t;
typedef struct drm_lock drm_lock_t;
typedef enum drm_dma_flags drm_dma_flags_t;
typedef struct drm_buf_desc drm_buf_desc_t;
typedef struct drm_buf_info drm_buf_info_t;
typedef struct drm_buf_free drm_buf_free_t;
typedef struct drm_buf_pub drm_buf_pub_t;
typedef struct drm_buf_map drm_buf_map_t;
typedef struct drm_dma drm_dma_t;
typedef union drm_wait_vblank drm_wait_vblank_t;
typedef struct drm_agp_mode drm_agp_mode_t;
typedef enum drm_ctx_flags drm_ctx_flags_t;
typedef struct drm_ctx drm_ctx_t;
typedef struct drm_ctx_res drm_ctx_res_t;
typedef struct drm_draw drm_draw_t;
typedef struct drm_update_draw drm_update_draw_t;
typedef struct drm_auth drm_auth_t;
typedef struct drm_irq_busid drm_irq_busid_t;
typedef enum drm_vblank_seq_type drm_vblank_seq_type_t;

typedef struct drm_agp_buffer drm_agp_buffer_t;
typedef struct drm_agp_binding drm_agp_binding_t;
typedef struct drm_agp_info drm_agp_info_t;
typedef struct drm_scatter_gather drm_scatter_gather_t;
typedef struct drm_set_version drm_set_version_t;
#endif

#if defined(__cplusplus)
}
#endif

#endif