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|
/* drm.h -- Header for Direct Rendering Manager -*- linux-c -*-
* Created: Mon Jan 4 10:05:05 1999 by faith@precisioninsight.com
*
* 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.
*
* Authors:
* Rickard E. (Rik) Faith <faith@valinux.com>
*
* Acknowledgements:
* Dec 1999, Richard Henderson <rth@twiddle.net>, move to generic cmpxchg.
*
*/
#ifndef _DRM_H_
#define _DRM_H_
#include <sys/ioccom.h>
#define DRM_IOCTL_NR(n) ((n) & 0xff)
#define XFREE86_VERSION(major,minor,patch,snap) \
((major << 16) | (minor << 8) | patch)
#ifndef CONFIG_XFREE86_VERSION
#define CONFIG_XFREE86_VERSION XFREE86_VERSION(4,1,0,0)
#endif
#if CONFIG_XFREE86_VERSION < XFREE86_VERSION(4,1,0,0)
#define DRM_PROC_DEVICES "/proc/devices"
#define DRM_PROC_MISC "/proc/misc"
#define DRM_PROC_DRM "/proc/drm"
#define DRM_DEV_DRM "/dev/drm"
#define DRM_DEV_MODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP)
#define DRM_DEV_UID 0
#define DRM_DEV_GID 0
#endif
#if CONFIG_XFREE86_VERSION >= XFREE86_VERSION(4,1,0,0)
#define DRM_MAJOR 226
#define DRM_MAX_MINOR 15
#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 50 /* How much system ram can we lock? */
#define _DRM_LOCK_HELD 0x80000000 /* Hardware lock is held */
#define _DRM_LOCK_CONT 0x40000000 /* 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 long drm_handle_t;
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 */
typedef struct drm_clip_rect {
unsigned short x1;
unsigned short y1;
unsigned short x2;
unsigned short y2;
} drm_clip_rect_t;
typedef struct drm_tex_region {
unsigned char next;
unsigned char prev;
unsigned char in_use;
unsigned char padding;
unsigned int age;
} drm_tex_region_t;
/* Seperate include files for the driver specific structures */
#include "mga_drm.h"
#include "i810_drm.h"
#include "i830_drm.h"
#include "r128_drm.h"
#include "radeon_drm.h"
#include "sis_drm.h"
typedef struct drm_version {
int version_major; /* Major version */
int version_minor; /* Minor version */
int version_patchlevel;/* Patch level */
size_t name_len; /* Length of name buffer */
char *name; /* Name of driver */
size_t date_len; /* Length of date buffer */
char *date; /* User-space buffer to hold date */
size_t desc_len; /* Length of desc buffer */
char *desc; /* User-space buffer to hold desc */
} drm_version_t;
typedef struct drm_unique {
size_t unique_len; /* Length of unique */
char *unique; /* Unique name for driver instantiation */
} drm_unique_t;
typedef struct drm_list {
int count; /* Length of user-space structures */
drm_version_t *version;
} drm_list_t;
typedef struct drm_block {
int unused;
} drm_block_t;
typedef struct drm_control {
enum {
DRM_ADD_COMMAND,
DRM_RM_COMMAND,
DRM_INST_HANDLER,
DRM_UNINST_HANDLER
} func;
int irq;
} drm_control_t;
typedef 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_map_type_t;
typedef 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_map_flags_t;
typedef struct drm_ctx_priv_map {
unsigned int ctx_id; /* Context requesting private mapping */
void *handle; /* Handle of map */
} drm_ctx_priv_map_t;
typedef struct drm_map {
unsigned long offset; /* Requested physical address (0 for SAREA)*/
unsigned long size; /* Requested physical size (bytes) */
drm_map_type_t type; /* Type of memory to map */
drm_map_flags_t flags; /* Flags */
void *handle; /* User-space: "Handle" to pass to mmap */
/* Kernel-space: kernel-virtual address */
int mtrr; /* MTRR slot used */
/* Private data */
} drm_map_t;
typedef struct drm_client {
int idx; /* Which client desired? */
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