* Header for the Direct Rendering Manager
* Author: Rickard E. (Rik) Faith <faith@valinux.com>
* 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.
* 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
* 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.
typedef unsigned int drm_handle_t;
#else /* One of the BSDs */
typedef size_t __kernel_size_t;
typedef unsigned long drm_handle_t;
#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;
* \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_drawable_info {
struct drm_clip_rect *rects;
* 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.
__volatile__ unsigned int lock; /**< lock variable */
char padding[60]; /**< Pad to cache line */
* DRM_IOCTL_VERSION ioctl argument type.
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().
__kernel_size_t unique_len; /**< Length of unique */
char *unique; /**< Unique name for driver instantiation */
int count; /**< Length of user-space structures */
struct drm_version *version;
* DRM_IOCTL_CONTROL ioctl argument type.
* \sa drmCtlInstHandler() and drmCtlUninstHandler().
_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 */
_DRM_RESTRICTED = 0x01, /**< Cannot be mapped to user-virtual */
_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
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 */
* DRM_IOCTL_GET_CLIENT ioctl argument type.
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 */
_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.
* Hardware locking 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().
enum drm_lock_flags flags;
* These values \e must match xf86drm.h.
/* 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
_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.
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 */
_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 */
unsigned long agp_start; /**<
* Start address of where the AGP buffers are
* DRM_IOCTL_INFO_BUFS ioctl argument type.
int count; /**< Entries in list */
struct drm_buf_desc *list;
* DRM_IOCTL_FREE_BUFS ioctl argument type.
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.
int count; /**< Length of the buffer list */
void *virtual; /**< Mmap'd area in user-virtual */
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.
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 granted_count; /**< Number of buffers granted */
_DRM_CONTEXT_PRESERVED = 0x01,
_DRM_CONTEXT_2DONLY = 0x02
* DRM_IOCTL_ADD_CTX ioctl argument type.
* \sa drmCreateContext() and drmDestroyContext().
enum drm_ctx_flags flags;
* DRM_IOCTL_RES_CTX ioctl argument type.
struct drm_ctx *contexts;
* DRM_IOCTL_ADD_DRAW and DRM_IOCTL_RM_DRAW ioctl argument type.
* DRM_IOCTL_UPDATE_DRAW ioctl argument type.
} drm_drawable_info_type_t;
* DRM_IOCTL_GET_MAGIC and DRM_IOCTL_AUTH_MAGIC ioctl argument type.
* DRM_IOCTL_IRQ_BUSID ioctl argument type.
* \sa drmGetInterruptFromBusID().
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;
struct drm_wait_vblank_reply {
enum drm_vblank_seq_type type;
It is recommended that you Edit text format, this type of Fix handles quite a lot in one request
