summaryrefslogtreecommitdiff
path: root/shared-core/drm.h
blob: 6cfe88fa7b901324035b50a7dcdc2c7d7f06a86f (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
/* 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
 * PRECISION INSIGHT 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.
 *
 */
/* $XFree86: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/kernel/drm.h,v 1.9 2000/08/24 22:20:18 tsi Exp $ */

#ifndef _DRM_H_
#define _DRM_H_

#if defined(__linux__)
#include <asm/ioctl.h>		/* For _IO* macros */
#elif defined(__FreeBSD__)
#include <sys/ioccom.h>
#endif

#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


#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	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;

/* Seperate include files for the i810/mga/r128 specific structures */
#include "mga_drm.h"
#include "i810_drm.h"
#include "r128_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_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_map_flags_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 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_lock_flags_t;

typedef struct drm_lock {
	int		 context;
	drm_lock_flags_t flags;
} drm_lock_t;

typedef enum drm_dma_flags {	      /* These values *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
					 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_dma_flags_t;

typedef 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            */
	}	      flags;
	unsigned long agp_start; /* Start address of where the agp buffers
				  * are in the agp aperture */
} drm_buf_desc_t;

typedef struct drm_buf_info {
	int	       count;	/* Entries in list			     */
	drm_buf_desc_t *list;
} drm_buf_info_t;

typedef struct drm_buf_free {
	int	       count;
	int	       *list;
} drm_buf_free_t;

typedef struct drm_buf_pub {
	int		  idx;	       /* Index into master buflist	     */
	int		  total;       /* Buffer size			     */
	int		  used;	       /* Amount of buffer in use (for DMA)  */
	void		  *address;    /* Address of buffer		     */
} drm_buf_pub_t;

typedef struct drm_buf_map {
	int	      count;	/* Length of buflist			    */
	void	      *virtual;	/* Mmaped area in user-virtual		    */
	drm_buf_pub_t *list;	/* Buffer information			    */
} drm_buf_map_t;

typedef struct drm_dma {
				/* Indices here refer to the offset into
				   buflist in drm_buf_get_t.  */
	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	    */
	drm_dma_flags_t 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	    */
} drm_dma_t;

typedef enum {
	_DRM_CONTEXT_PRESERVED = 0x01,
	_DRM_CONTEXT_2DONLY    = 0x02
} drm_ctx_flags_t;

typedef struct drm_ctx {
	drm_context_t	handle;
	drm_ctx_flags_t flags;
} drm_ctx_t;

typedef struct drm_ctx_res {
	int		count;
	drm_ctx_t	*contexts;
} drm_ctx_res_t;

typedef struct drm_draw {
	drm_drawable_t	handle;
} drm_draw_t;

typedef struct drm_auth {
	drm_magic_t	magic;
} drm_auth_t;

typedef struct drm_irq_busid {
	int irq;
	int busnum;
	int devnum;
	int funcnum;
} drm_irq_busid_t;

typedef struct drm_agp_mode {
	unsigned long mode;
} drm_agp_mode_t;

				/* For drm_agp_alloc -- allocated a buffer */
typedef struct drm_agp_buffer {
	unsigned long size;	/* In bytes -- will round to page boundary */
	unsigned long handle;	/* Used for BIND/UNBIND ioctls */
	unsigned long type;     /* Type of memory to allocate  */
        unsigned long physical; /* Physical used by i810       */
} drm_agp_buffer_t;

				/* For drm_agp_bind */
typedef struct drm_agp_binding {
	unsigned long handle;   /* From drm_agp_buffer */
	unsigned long offset;	/* In bytes -- will round to page boundary */
} drm_agp_binding_t;

typedef 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_agp_info_t;

#define DRM_IOCTL_BASE	     'd'
#if defined(__linux__)
#define DRM_IOCTL_NR(n)	     _IOC_NR(n)
#elif defined(__FreeBSD__)
#define DRM_IOCTL_NR(n)	     ((n) & 0xff)
#endif
#define DRM_IO(nr)	     _IO(DRM_IOCTL_BASE,nr)
#define DRM_IOR(nr,size)     _IOR(DRM_IOCTL_BASE,nr,size)
#define DRM_IOW(nr,size)     _IOW(DRM_IOCTL_BASE,nr,size)
#define DRM_IOWR(nr,size)    _IOWR(DRM_IOCTL_BASE,nr,size)


#define DRM_IOCTL_VERSION    DRM_IOWR(0x00, drm_version_t)
#define DRM_IOCTL_GET_UNIQUE DRM_IOWR(0x01, drm_unique_t)
#define DRM_IOCTL_GET_MAGIC  DRM_IOR( 0x02, drm_auth_t)
#define DRM_IOCTL_IRQ_BUSID  DRM_IOWR(0x03, drm_irq_busid_t)

#define DRM_IOCTL_SET_UNIQUE DRM_IOW( 0x10, drm_unique_t)
#define DRM_IOCTL_AUTH_MAGIC DRM_IOW( 0x11, drm_auth_t)
#define DRM_IOCTL_BLOCK	     DRM_IOWR(0x12, drm_block_t)
#define DRM_IOCTL_UNBLOCK    DRM_IOWR(0x13, drm_block_t)
#define DRM_IOCTL_CONTROL    DRM_IOW( 0x14, drm_control_t)
#define DRM_IOCTL_ADD_MAP    DRM_IOWR(0x15, drm_map_t)
#define DRM_IOCTL_ADD_BUFS   DRM_IOWR(0x16, drm_buf_desc_t)
#define DRM_IOCTL_MARK_BUFS  DRM_IOW( 0x17, drm_buf_desc_t)
#define DRM_IOCTL_INFO_BUFS  DRM_IOWR(0x18, drm_buf_info_t)
#define DRM_IOCTL_MAP_BUFS   DRM_IOWR(0x19, drm_buf_map_t)
#define DRM_IOCTL_FREE_BUFS  DRM_IOW( 0x1a, drm_buf_free_t)

#define DRM_IOCTL_ADD_CTX    DRM_IOWR(0x20, drm_ctx_t)
#define DRM_IOCTL_RM_CTX     DRM_IOWR(0x21, drm_ctx_t)
#define DRM_IOCTL_MOD_CTX    DRM_IOW( 0x22, drm_ctx_t)
#define DRM_IOCTL_GET_CTX    DRM_IOWR(0x23, drm_ctx_t)
#define DRM_IOCTL_SWITCH_CTX DRM_IOW( 0x24, drm_ctx_t)
#define DRM_IOCTL_NEW_CTX    DRM_IOW( 0x25, drm_ctx_t)
#define DRM_IOCTL_RES_CTX    DRM_IOWR(0x26, drm_ctx_res_t)
#define DRM_IOCTL_ADD_DRAW   DRM_IOWR(0x27, drm_draw_t)
#define DRM_IOCTL_RM_DRAW    DRM_IOWR(0x28, drm_draw_t)
#define DRM_IOCTL_DMA	     DRM_IOWR(0x29, drm_dma_t)
#define DRM_IOCTL_LOCK	     DRM_IOW( 0x2a, drm_lock_t)
#define DRM_IOCTL_UNLOCK     DRM_IOW( 0x2b, drm_lock_t)
#define DRM_IOCTL_FINISH     DRM_IOW( 0x2c, drm_lock_t)

#define DRM_IOCTL_AGP_ACQUIRE DRM_IO(  0x30)
#define DRM_IOCTL_AGP_RELEASE DRM_IO(  0x31)
#define DRM_IOCTL_AGP_ENABLE  DRM_IOW( 0x32, drm_agp_mode_t)
#define DRM_IOCTL_AGP_INFO    DRM_IOR( 0x33, drm_agp_info_t)
#define DRM_IOCTL_AGP_ALLOC   DRM_IOWR(0x34, drm_agp_buffer_t)
#define DRM_IOCTL_AGP_FREE    DRM_IOW( 0x35, drm_agp_buffer_t)
#define DRM_IOCTL_AGP_BIND    DRM_IOW( 0x36, drm_agp_binding_t)
#define DRM_IOCTL_AGP_UNBIND  DRM_IOW( 0x37, drm_agp_binding_t)

/* Mga specific ioctls */
#define DRM_IOCTL_MGA_INIT    DRM_IOW( 0x40, drm_mga_init_t)
#define DRM_IOCTL_MGA_SWAP    DRM_IOW( 0x41, drm_mga_swap_t)
#define DRM_IOCTL_MGA_CLEAR   DRM_IOW( 0x42, drm_mga_clear_t)
#define DRM_IOCTL_MGA_ILOAD   DRM_IOW( 0x43, drm_mga_iload_t)
#define DRM_IOCTL_MGA_VERTEX  DRM_IOW( 0x44, drm_mga_vertex_t)
#define DRM_IOCTL_MGA_FLUSH   DRM_IOW( 0x45, drm_lock_t )
#define DRM_IOCTL_MGA_INDICES DRM_IOW( 0x46, drm_mga_indices_t)

/* I810 specific ioctls */
#define DRM_IOCTL_I810_INIT    DRM_IOW( 0x40, drm_i810_init_t)
#define DRM_IOCTL_I810_VERTEX  DRM_IOW( 0x41, drm_i810_vertex_t)
#define DRM_IOCTL_I810_CLEAR   DRM_IOW( 0x42, drm_i810_clear_t)
#define DRM_IOCTL_I810_FLUSH   DRM_IO ( 0x43)
#define DRM_IOCTL_I810_GETAGE  DRM_IO ( 0x44)
#define DRM_IOCTL_I810_GETBUF  DRM_IOWR(0x45, drm_i810_dma_t)
#define DRM_IOCTL_I810_SWAP    DRM_IO ( 0x46)
#define DRM_IOCTL_I810_COPY    DRM_IOW( 0x47, drm_i810_copy_t)
#define DRM_IOCTL_I810_DOCOPY  DRM_IO ( 0x48)

/* Rage 128 specific ioctls */
#define DRM_IOCTL_R128_INIT	DRM_IOW( 0x40, drm_r128_init_t)
#define DRM_IOCTL_R128_RESET	DRM_IO(  0x41)
#define DRM_IOCTL_R128_FLUSH	DRM_IO(  0x42)
#define DRM_IOCTL_R128_IDLE	DRM_IO(  0x43)
#define DRM_IOCTL_R128_PACKET	DRM_IOW( 0x44, drm_r128_packet_t)
#define DRM_IOCTL_R128_VERTEX	DRM_IOW( 0x45, drm_r128_vertex_t)

#endif