1 /* mga_drv.h -- Private header for the Matrox G200/G400 driver -*- linux-c -*-
2  * Created: Mon Dec 13 01:50:01 1999 by jhartmann@precisioninsight.com
3  *
4  * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
5  * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
6  * All rights reserved.
7  *
8  * Permission is hereby granted, free of charge, to any person obtaining a
9  * copy of this software and associated documentation files (the "Software"),
10  * to deal in the Software without restriction, including without limitation
11  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
12  * and/or sell copies of the Software, and to permit persons to whom the
13  * Software is furnished to do so, subject to the following conditions:
14  *
15  * The above copyright notice and this permission notice (including the next
16  * paragraph) shall be included in all copies or substantial portions of the
17  * Software.
18  *
19  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
20  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
21  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
22  * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
23  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
24  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
25  * OTHER DEALINGS IN THE SOFTWARE.
26  *
27  * Authors:
28  *    Gareth Hughes <gareth@valinux.com>
29  */
30 
31 #ifndef __MGA_DRV_H__
32 #define __MGA_DRV_H__
33 
34 /* General customization:
35  */
36 
37 #define DRIVER_AUTHOR		"Gareth Hughes, VA Linux Systems Inc."
38 
39 #define DRIVER_NAME		"mga"
40 #define DRIVER_DESC		"Matrox G200/G400"
41 #define DRIVER_DATE		"20060319"
42 
43 #define DRIVER_MAJOR		3
44 #define DRIVER_MINOR		2
45 #define DRIVER_PATCHLEVEL	2
46 
47 typedef struct drm_mga_primary_buffer {
48 	u8 *start;
49 	u8 *end;
50 	int size;
51 
52 	u32 tail;
53 	int space;
54 	volatile long wrapped;
55 
56 	volatile u32 *status;
57 
58 	u32 last_flush;
59 	u32 last_wrap;
60 
61 	u32 high_mark;
62 } drm_mga_primary_buffer_t;
63 
64 typedef struct drm_mga_freelist {
65 	struct drm_mga_freelist *next;
66 	struct drm_mga_freelist *prev;
67 	drm_mga_age_t age;
68 	struct drm_buf *buf;
69 } drm_mga_freelist_t;
70 
71 typedef struct {
72 	drm_mga_freelist_t *list_entry;
73 	int discard;
74 	int dispatched;
75 } drm_mga_buf_priv_t;
76 
77 typedef struct drm_mga_private {
78 	drm_mga_primary_buffer_t prim;
79 	drm_mga_sarea_t *sarea_priv;
80 
81 	drm_mga_freelist_t *head;
82 	drm_mga_freelist_t *tail;
83 
84 	unsigned int warp_pipe;
85 	unsigned long warp_pipe_phys[MGA_MAX_WARP_PIPES];
86 
87 	int chipset;
88 	int usec_timeout;
89 
90 	/**
91 	 * If set, the new DMA initialization sequence was used.  This is
92 	 * primarilly used to select how the driver should uninitialized its
93 	 * internal DMA structures.
94 	 */
95 	int used_new_dma_init;
96 
97 	/**
98 	 * If AGP memory is used for DMA buffers, this will be the value
99 	 * \c MGA_PAGPXFER.  Otherwise, it will be zero (for a PCI transfer).
100 	 */
101 	u32 dma_access;
102 
103 	/**
104 	 * If AGP memory is used for DMA buffers, this will be the value
105 	 * \c MGA_WAGP_ENABLE.  Otherwise, it will be zero (for a PCI
106 	 * transfer).
107 	 */
108 	u32 wagp_enable;
109 
110 	/**
111 	 * \name MMIO region parameters.
112 	 *
113 	 * \sa drm_mga_private_t::mmio
114 	 */
115 	/*@{*/
116 	u32 mmio_base;			/**< Bus address of base of MMIO. */
117 	u32 mmio_size;			/**< Size of the MMIO region. */
118 	/*@}*/
119 
120 	u32 clear_cmd;
121 	u32 maccess;
122 
123 	atomic_t vbl_received;		/**< Number of vblanks received. */
124 	wait_queue_head_t fence_queue;
125 	atomic_t last_fence_retired;
126 	u32 next_fence_to_post;
127 
128 	unsigned int fb_cpp;
129 	unsigned int front_offset;
130 	unsigned int front_pitch;
131 	unsigned int back_offset;
132 	unsigned int back_pitch;
133 
134 	unsigned int depth_cpp;
135 	unsigned int depth_offset;
136 	unsigned int depth_pitch;
137 
138 	unsigned int texture_offset;
139 	unsigned int texture_size;
140 
141 	drm_local_map_t *sarea;
142 	drm_local_map_t *mmio;
143 	drm_local_map_t *status;
144 	drm_local_map_t *warp;
145 	drm_local_map_t *primary;
146 	drm_local_map_t *agp_textures;
147 
148 	unsigned long agp_handle;
149 	unsigned int agp_size;
150 } drm_mga_private_t;
151 
152 extern struct drm_ioctl_desc mga_ioctls[];
153 extern int mga_max_ioctl;
154 
155 				/* mga_dma.c */
156 extern int mga_dma_bootstrap(struct drm_device *dev, void *data,
157 			     struct drm_file *file_priv);
158 extern int mga_dma_init(struct drm_device *dev, void *data,
159 			struct drm_file *file_priv);
160 extern int mga_dma_flush(struct drm_device *dev, void *data,
161 			 struct drm_file *file_priv);
162 extern int mga_dma_reset(struct drm_device *dev, void *data,
163 			 struct drm_file *file_priv);
164 extern int mga_dma_buffers(struct drm_device *dev, void *data,
165 			   struct drm_file *file_priv);
166 extern int mga_driver_load(struct drm_device *dev, unsigned long flags);
167 extern int mga_driver_unload(struct drm_device * dev);
168 extern void mga_driver_lastclose(struct drm_device * dev);
169 extern int mga_driver_dma_quiescent(struct drm_device * dev);
170 
171 extern int mga_do_wait_for_idle(drm_mga_private_t * dev_priv);
172 
173 extern void mga_do_dma_flush(drm_mga_private_t * dev_priv);
174 extern void mga_do_dma_wrap_start(drm_mga_private_t * dev_priv);
175 extern void mga_do_dma_wrap_end(drm_mga_private_t * dev_priv);
176 
177 extern int mga_freelist_put(struct drm_device * dev, struct drm_buf * buf);
178 
179 				/* mga_warp.c */
180 extern unsigned int mga_warp_microcode_size(const drm_mga_private_t * dev_priv);
181 extern int mga_warp_install_microcode(drm_mga_private_t * dev_priv);
182 extern int mga_warp_init(drm_mga_private_t * dev_priv);
183 
184 				/* mga_irq.c */
185 extern int mga_enable_vblank(struct drm_device *dev, int crtc);
186 extern void mga_disable_vblank(struct drm_device *dev, int crtc);
187 extern u32 mga_get_vblank_counter(struct drm_device *dev, int crtc);
188 extern int mga_driver_fence_wait(struct drm_device * dev, unsigned int *sequence);
189 extern int mga_driver_vblank_wait(struct drm_device * dev, unsigned int *sequence);
190 extern irqreturn_t mga_driver_irq_handler(DRM_IRQ_ARGS);
191 extern void mga_driver_irq_preinstall(struct drm_device * dev);
192 extern int mga_driver_irq_postinstall(struct drm_device * dev);
193 extern void mga_driver_irq_uninstall(struct drm_device * dev);
194 extern long mga_compat_ioctl(struct file *filp, unsigned int cmd,
195 			     unsigned long arg);
196 
197 #define mga_flush_write_combine()	DRM_WRITEMEMORYBARRIER()
198 
199 #if defined(__linux__) && defined(__alpha__)
200 #define MGA_BASE( reg )		((unsigned long)(dev_priv->mmio->handle))
201 #define MGA_ADDR( reg )		(MGA_BASE(reg) + reg)
202 
203 #define MGA_DEREF( reg )	*(volatile u32 *)MGA_ADDR( reg )
204 #define MGA_DEREF8( reg )	*(volatile u8 *)MGA_ADDR( reg )
205 
206 #define MGA_READ( reg )		(_MGA_READ((u32 *)MGA_ADDR(reg)))
207 #define MGA_READ8( reg )	(_MGA_READ((u8 *)MGA_ADDR(reg)))
208 #define MGA_WRITE( reg, val )	do { DRM_WRITEMEMORYBARRIER(); MGA_DEREF( reg ) = val; } while (0)
209 #define MGA_WRITE8( reg, val )  do { DRM_WRITEMEMORYBARRIER(); MGA_DEREF8( reg ) = val; } while (0)
210 
211 static inline u32 _MGA_READ(u32 * addr)
212 {
213 	DRM_MEMORYBARRIER();
214 	return *(volatile u32 *)addr;
215 }
216 #else
217 #define MGA_READ8( reg )	DRM_READ8(dev_priv->mmio, (reg))
218 #define MGA_READ( reg )		DRM_READ32(dev_priv->mmio, (reg))
219 #define MGA_WRITE8( reg, val )  DRM_WRITE8(dev_priv->mmio, (reg), (val))
220 #define MGA_WRITE( reg, val )	DRM_WRITE32(dev_priv->mmio, (reg), (val))
221 #endif
222 
223 #define DWGREG0		0x1c00
224 #define DWGREG0_END	0x1dff
225 #define DWGREG1		0x2c00
226 #define DWGREG1_END	0x2dff
227 
228 #define ISREG0(r)	(r >= DWGREG0 && r <= DWGREG0_END)
229 #define DMAREG0(r)	(u8)((r - DWGREG0) >> 2)
230 #define DMAREG1(r)	(u8)(((r - DWGREG1) >> 2) | 0x80)
231 #define DMAREG(r)	(ISREG0(r) ? DMAREG0(r) : DMAREG1(r))
232 
233 /* ================================================================
234  * Helper macross...
235  */
236 
237 #define MGA_EMIT_STATE( dev_priv, dirty )				\
238 do {									\
239 	if ( (dirty) & ~MGA_UPLOAD_CLIPRECTS ) {			\
240 		if ( dev_priv->chipset >= MGA_CARD_TYPE_G400 ) {	\
241 			mga_g400_emit_state( dev_priv );		\
242 		} else {						\
243 			mga_g200_emit_state( dev_priv );		\
244 		}							\
245 	}								\
246 } while (0)
247 
248 #define WRAP_TEST_WITH_RETURN( dev_priv )				\
249 do {									\
250 	if ( test_bit( 0, &dev_priv->prim.wrapped ) ) {			\
251 		if ( mga_is_idle( dev_priv ) ) {			\
252 			mga_do_dma_wrap_end( dev_priv );		\
253 		} else if ( dev_priv->prim.space <			\
254 			    dev_priv->prim.high_mark ) {		\
255 			if ( MGA_DMA_DEBUG )				\
256 				DRM_INFO( "wrap...\n");		\
257 			return -EBUSY;			\
258 		}							\
259 	}								\
260 } while (0)
261 
262 #define WRAP_WAIT_WITH_RETURN( dev_priv )				\
263 do {									\
264 	if ( test_bit( 0, &dev_priv->prim.wrapped ) ) {			\
265 		if ( mga_do_wait_for_idle( dev_priv ) < 0 ) {		\
266 			if ( MGA_DMA_DEBUG )				\
267 				DRM_INFO( "wrap...\n");		\
268 			return -EBUSY;			\
269 		}							\
270 		mga_do_dma_wrap_end( dev_priv );			\
271 	}								\
272 } while (0)
273 
274 /* ================================================================
275  * Primary DMA command stream
276  */
277 
278 #define MGA_VERBOSE	0
279 
280 #define DMA_LOCALS	unsigned int write; volatile u8 *prim;
281 
282 #define DMA_BLOCK_SIZE	(5 * sizeof(u32))
283 
284 #define BEGIN_DMA( n )							\
285 do {									\
286 	if ( MGA_VERBOSE ) {						\
287 		DRM_INFO( "BEGIN_DMA( %d )\n", (n) );		\
288 		DRM_INFO( "   space=0x%x req=0x%Zx\n",			\
289 			  dev_priv->prim.space, (n) * DMA_BLOCK_SIZE );	\
290 	}								\
291 	prim = dev_priv->prim.start;					\
292 	write = dev_priv->prim.tail;					\
293 } while (0)
294 
295 #define BEGIN_DMA_WRAP()						\
296 do {									\
297 	if ( MGA_VERBOSE ) {						\
298 		DRM_INFO( "BEGIN_DMA()\n" );				\
299 		DRM_INFO( "   space=0x%x\n", dev_priv->prim.space );	\
300 	}								\
301 	prim = dev_priv->prim.start;					\
302 	write = dev_priv->prim.tail;					\
303 } while (0)
304 
305 #define ADVANCE_DMA()							\
306 do {									\
307 	dev_priv->prim.tail = write;					\
308 	if ( MGA_VERBOSE ) {						\
309 		DRM_INFO( "ADVANCE_DMA() tail=0x%05x sp=0x%x\n",	\
310 			  write, dev_priv->prim.space );		\
311 	}								\
312 } while (0)
313 
314 #define FLUSH_DMA()							\
315 do {									\
316 	if ( 0 ) {							\
317 		DRM_INFO( "\n" );					\
318 		DRM_INFO( "   tail=0x%06x head=0x%06lx\n",		\
319 			  dev_priv->prim.tail,				\
320 			  MGA_READ( MGA_PRIMADDRESS ) -			\
321 			  dev_priv->primary->offset );			\
322 	}								\
323 	if ( !test_bit( 0, &dev_priv->prim.wrapped ) ) {		\
324 		if ( dev_priv->prim.space <				\
325 		     dev_priv->prim.high_mark ) {			\
326 			mga_do_dma_wrap_start( dev_priv );		\
327 		} else {						\
328 			mga_do_dma_flush( dev_priv );			\
329 		}							\
330 	}								\
331 } while (0)
332 
333 /* Never use this, always use DMA_BLOCK(...) for primary DMA output.
334  */
335 #define DMA_WRITE( offset, val )					\
336 do {									\
337 	if ( MGA_VERBOSE ) {						\
338 		DRM_INFO( "   DMA_WRITE( 0x%08x ) at 0x%04Zx\n",	\
339 			  (u32)(val), write + (offset) * sizeof(u32) );	\
340 	}								\
341 	*(volatile u32 *)(prim + write + (offset) * sizeof(u32)) = val;	\
342 } while (0)
343 
344 #define DMA_BLOCK( reg0, val0, reg1, val1, reg2, val2, reg3, val3 )	\
345 do {									\
346 	DMA_WRITE( 0, ((DMAREG( reg0 ) << 0) |				\
347 		       (DMAREG( reg1 ) << 8) |				\
348 		       (DMAREG( reg2 ) << 16) |				\
349 		       (DMAREG( reg3 ) << 24)) );			\
350 	DMA_WRITE( 1, val0 );						\
351 	DMA_WRITE( 2, val1 );						\
352 	DMA_WRITE( 3, val2 );						\
353 	DMA_WRITE( 4, val3 );						\
354 	write += DMA_BLOCK_SIZE;					\
355 } while (0)
356 
357 /* Buffer aging via primary DMA stream head pointer.
358  */
359 
360 #define SET_AGE( age, h, w )						\
361 do {									\
362 	(age)->head = h;						\
363 	(age)->wrap = w;						\
364 } while (0)
365 
366 #define TEST_AGE( age, h, w )		( (age)->wrap < w ||		\
367 					  ( (age)->wrap == w &&		\
368 					    (age)->head < h ) )
369 
370 #define AGE_BUFFER( buf_priv )						\
371 do {									\
372 	drm_mga_freelist_t *entry = (buf_priv)->list_entry;		\
373 	if ( (buf_priv)->dispatched ) {					\
374 		entry->age.head = (dev_priv->prim.tail +		\
375 				   dev_priv->primary->offset);		\
376 		entry->age.wrap = dev_priv->sarea_priv->last_wrap;	\
377 	} else {							\
378 		entry->age.head = 0;					\
379 		entry->age.wrap = 0;					\
380 	}								\
381 } while (0)
382 
383 #define MGA_ENGINE_IDLE_MASK		(MGA_SOFTRAPEN |		\
384 					 MGA_DWGENGSTS |		\
385 					 MGA_ENDPRDMASTS)
386 #define MGA_DMA_IDLE_MASK		(MGA_SOFTRAPEN |		\
387 					 MGA_ENDPRDMASTS)
388 
389 #define MGA_DMA_DEBUG			0
390 
391 /* A reduced set of the mga registers.
392  */
393 #define MGA_CRTC_INDEX			0x1fd4
394 #define MGA_CRTC_DATA			0x1fd5
395 
396 /* CRTC11 */
397 #define MGA_VINTCLR			(1 << 4)
398 #define MGA_VINTEN			(1 << 5)
399 
400 #define MGA_ALPHACTRL			0x2c7c
401 #define MGA_AR0				0x1c60
402 #define MGA_AR1				0x1c64
403 #define MGA_AR2				0x1c68
404 #define MGA_AR3				0x1c6c
405 #define MGA_AR4				0x1c70
406 #define MGA_AR5				0x1c74
407 #define MGA_AR6				0x1c78
408 
409 #define MGA_CXBNDRY			0x1c80
410 #define MGA_CXLEFT			0x1ca0
411 #define MGA_CXRIGHT			0x1ca4
412 
413 #define MGA_DMAPAD			0x1c54
414 #define MGA_DSTORG			0x2cb8
415 #define MGA_DWGCTL			0x1c00
416 #	define MGA_OPCOD_MASK			(15 << 0)
417 #	define MGA_OPCOD_TRAP			(4 << 0)
418 #	define MGA_OPCOD_TEXTURE_TRAP		(6 << 0)
419 #	define MGA_OPCOD_BITBLT			(8 << 0)
420 #	define MGA_OPCOD_ILOAD			(9 << 0)
421 #	define MGA_ATYPE_MASK			(7 << 4)
422 #	define MGA_ATYPE_RPL			(0 << 4)
423 #	define MGA_ATYPE_RSTR			(1 << 4)
424 #	define MGA_ATYPE_ZI			(3 << 4)
425 #	define MGA_ATYPE_BLK			(4 << 4)
426 #	define MGA_ATYPE_I			(7 << 4)
427 #	define MGA_LINEAR			(1 << 7)
428 #	define MGA_ZMODE_MASK			(7 << 8)
429 #	define MGA_ZMODE_NOZCMP			(0 << 8)
430 #	define MGA_ZMODE_ZE			(2 << 8)
431 #	define MGA_ZMODE_ZNE			(3 << 8)
432 #	define MGA_ZMODE_ZLT			(4 << 8)
433 #	define MGA_ZMODE_ZLTE			(5 << 8)
434 #	define MGA_ZMODE_ZGT			(6 << 8)
435 #	define MGA_ZMODE_ZGTE			(7 << 8)
436 #	define MGA_SOLID			(1 << 11)
437 #	define MGA_ARZERO			(1 << 12)
438 #	define MGA_SGNZERO			(1 << 13)
439 #	define MGA_SHIFTZERO			(1 << 14)
440 #	define MGA_BOP_MASK			(15 << 16)
441 #	define MGA_BOP_ZERO			(0 << 16)
442 #	define MGA_BOP_DST			(10 << 16)
443 #	define MGA_BOP_SRC			(12 << 16)
444 #	define MGA_BOP_ONE			(15 << 16)
445 #	define MGA_TRANS_SHIFT			20
446 #	define MGA_TRANS_MASK			(15 << 20)
447 #	define MGA_BLTMOD_MASK			(15 << 25)
448 #	define MGA_BLTMOD_BMONOLEF		(0 << 25)
449 #	define MGA_BLTMOD_BMONOWF		(4 << 25)
450 #	define MGA_BLTMOD_PLAN			(1 << 25)
451 #	define MGA_BLTMOD_BFCOL			(2 << 25)
452 #	define MGA_BLTMOD_BU32BGR		(3 << 25)
453 #	define MGA_BLTMOD_BU32RGB		(7 << 25)
454 #	define MGA_BLTMOD_BU24BGR		(11 << 25)
455 #	define MGA_BLTMOD_BU24RGB		(15 << 25)
456 #	define MGA_PATTERN			(1 << 29)
457 #	define MGA_TRANSC			(1 << 30)
458 #	define MGA_CLIPDIS			(1 << 31)
459 #define MGA_DWGSYNC			0x2c4c
460 
461 #define MGA_FCOL			0x1c24
462 #define MGA_FIFOSTATUS			0x1e10
463 #define MGA_FOGCOL			0x1cf4
464 #define MGA_FXBNDRY			0x1c84
465 #define MGA_FXLEFT			0x1ca8
466 #define MGA_FXRIGHT			0x1cac
467 
468 #define MGA_ICLEAR			0x1e18
469 #	define MGA_SOFTRAPICLR			(1 << 0)
470 #	define MGA_VLINEICLR			(1 << 5)
471 #define MGA_IEN				0x1e1c
472 #	define MGA_SOFTRAPIEN			(1 << 0)
473 #	define MGA_VLINEIEN			(1 << 5)
474 
475 #define MGA_LEN				0x1c5c
476 
477 #define MGA_MACCESS			0x1c04
478 
479 #define MGA_PITCH			0x1c8c
480 #define MGA_PLNWT			0x1c1c
481 #define MGA_PRIMADDRESS			0x1e58
482 #	define MGA_DMA_GENERAL			(0 << 0)
483 #	define MGA_DMA_BLIT			(1 << 0)
484 #	define MGA_DMA_VECTOR			(2 << 0)
485 #	define MGA_DMA_VERTEX			(3 << 0)
486 #define MGA_PRIMEND			0x1e5c
487 #	define MGA_PRIMNOSTART			(1 << 0)
488 #	define MGA_PAGPXFER			(1 << 1)
489 #define MGA_PRIMPTR			0x1e50
490 #	define MGA_PRIMPTREN0			(1 << 0)
491 #	define MGA_PRIMPTREN1			(1 << 1)
492 
493 #define MGA_RST				0x1e40
494 #	define MGA_SOFTRESET			(1 << 0)
495 #	define MGA_SOFTEXTRST			(1 << 1)
496 
497 #define MGA_SECADDRESS			0x2c40
498 #define MGA_SECEND			0x2c44
499 #define MGA_SETUPADDRESS		0x2cd0
500 #define MGA_SETUPEND			0x2cd4
501 #define MGA_SGN				0x1c58
502 #define MGA_SOFTRAP			0x2c48
503 #define MGA_SRCORG			0x2cb4
504 #	define MGA_SRMMAP_MASK			(1 << 0)
505 #	define MGA_SRCMAP_FB			(0 << 0)
506 #	define MGA_SRCMAP_SYSMEM		(1 << 0)
507 #	define MGA_SRCACC_MASK			(1 << 1)
508 #	define MGA_SRCACC_PCI			(0 << 1)
509 #	define MGA_SRCACC_AGP			(1 << 1)
510 #define MGA_STATUS			0x1e14
511 #	define MGA_SOFTRAPEN			(1 << 0)
512 #	define MGA_VSYNCPEN			(1 << 4)
513 #	define MGA_VLINEPEN			(1 << 5)
514 #	define MGA_DWGENGSTS			(1 << 16)
515 #	define MGA_ENDPRDMASTS			(1 << 17)
516 #define MGA_STENCIL			0x2cc8
517 #define MGA_STENCILCTL			0x2ccc
518 
519 #define MGA_TDUALSTAGE0			0x2cf8
520 #define MGA_TDUALSTAGE1			0x2cfc
521 #define MGA_TEXBORDERCOL		0x2c5c
522 #define MGA_TEXCTL			0x2c30
523 #define MGA_TEXCTL2			0x2c3c
524 #	define MGA_DUALTEX			(1 << 7)
525 #	define MGA_G400_TC2_MAGIC		(1 << 15)
526 #	define MGA_MAP1_ENABLE			(1 << 31)
527 #define MGA_TEXFILTER			0x2c58
528 #define MGA_TEXHEIGHT			0x2c2c
529 #define MGA_TEXORG			0x2c24
530 #	define MGA_TEXORGMAP_MASK		(1 << 0)
531 #	define MGA_TEXORGMAP_FB			(0 << 0)
532 #	define MGA_TEXORGMAP_SYSMEM		(1 << 0)
533 #	define MGA_TEXORGACC_MASK		(1 << 1)
534 #	define MGA_TEXORGACC_PCI		(0 << 1)
535 #	define MGA_TEXORGACC_AGP		(1 << 1)
536 #define MGA_TEXORG1			0x2ca4
537 #define MGA_TEXORG2			0x2ca8
538 #define MGA_TEXORG3			0x2cac
539 #define MGA_TEXORG4			0x2cb0
540 #define MGA_TEXTRANS			0x2c34
541 #define MGA_TEXTRANSHIGH		0x2c38
542 #define MGA_TEXWIDTH			0x2c28
543 
544 #define MGA_WACCEPTSEQ			0x1dd4
545 #define MGA_WCODEADDR			0x1e6c
546 #define MGA_WFLAG			0x1dc4
547 #define MGA_WFLAG1			0x1de0
548 #define MGA_WFLAGNB			0x1e64
549 #define MGA_WFLAGNB1			0x1e08
550 #define MGA_WGETMSB			0x1dc8
551 #define MGA_WIADDR			0x1dc0
552 #define MGA_WIADDR2			0x1dd8
553 #	define MGA_WMODE_SUSPEND		(0 << 0)
554 #	define MGA_WMODE_RESUME			(1 << 0)
555 #	define MGA_WMODE_JUMP			(2 << 0)
556 #	define MGA_WMODE_START			(3 << 0)
557 #	define MGA_WAGP_ENABLE			(1 << 2)
558 #define MGA_WMISC			0x1e70
559 #	define MGA_WUCODECACHE_ENABLE		(1 << 0)
560 #	define MGA_WMASTER_ENABLE		(1 << 1)
561 #	define MGA_WCACHEFLUSH_ENABLE		(1 << 3)
562 #define MGA_WVRTXSZ			0x1dcc
563 
564 #define MGA_YBOT			0x1c9c
565 #define MGA_YDST			0x1c90
566 #define MGA_YDSTLEN			0x1c88
567 #define MGA_YDSTORG			0x1c94
568 #define MGA_YTOP			0x1c98
569 
570 #define MGA_ZORG			0x1c0c
571 
572 /* This finishes the current batch of commands
573  */
574 #define MGA_EXEC			0x0100
575 
576 /* AGP PLL encoding (for G200 only).
577  */
578 #define MGA_AGP_PLL			0x1e4c
579 #	define MGA_AGP2XPLL_DISABLE		(0 << 0)
580 #	define MGA_AGP2XPLL_ENABLE		(1 << 0)
581 
582 /* Warp registers
583  */
584 #define MGA_WR0				0x2d00
585 #define MGA_WR1				0x2d04
586 #define MGA_WR2				0x2d08
587 #define MGA_WR3				0x2d0c
588 #define MGA_WR4				0x2d10
589 #define MGA_WR5				0x2d14
590 #define MGA_WR6				0x2d18
591 #define MGA_WR7				0x2d1c
592 #define MGA_WR8				0x2d20
593 #define MGA_WR9				0x2d24
594 #define MGA_WR10			0x2d28
595 #define MGA_WR11			0x2d2c
596 #define MGA_WR12			0x2d30
597 #define MGA_WR13			0x2d34
598 #define MGA_WR14			0x2d38
599 #define MGA_WR15			0x2d3c
600 #define MGA_WR16			0x2d40
601 #define MGA_WR17			0x2d44
602 #define MGA_WR18			0x2d48
603 #define MGA_WR19			0x2d4c
604 #define MGA_WR20			0x2d50
605 #define MGA_WR21			0x2d54
606 #define MGA_WR22			0x2d58
607 #define MGA_WR23			0x2d5c
608 #define MGA_WR24			0x2d60
609 #define MGA_WR25			0x2d64
610 #define MGA_WR26			0x2d68
611 #define MGA_WR27			0x2d6c
612 #define MGA_WR28			0x2d70
613 #define MGA_WR29			0x2d74
614 #define MGA_WR30			0x2d78
615 #define MGA_WR31			0x2d7c
616 #define MGA_WR32			0x2d80
617 #define MGA_WR33			0x2d84
618 #define MGA_WR34			0x2d88
619 #define MGA_WR35			0x2d8c
620 #define MGA_WR36			0x2d90
621 #define MGA_WR37			0x2d94
622 #define MGA_WR38			0x2d98
623 #define MGA_WR39			0x2d9c
624 #define MGA_WR40			0x2da0
625 #define MGA_WR41			0x2da4
626 #define MGA_WR42			0x2da8
627 #define MGA_WR43			0x2dac
628 #define MGA_WR44			0x2db0
629 #define MGA_WR45			0x2db4
630 #define MGA_WR46			0x2db8
631 #define MGA_WR47			0x2dbc
632 #define MGA_WR48			0x2dc0
633 #define MGA_WR49			0x2dc4
634 #define MGA_WR50			0x2dc8
635 #define MGA_WR51			0x2dcc
636 #define MGA_WR52			0x2dd0
637 #define MGA_WR53			0x2dd4
638 #define MGA_WR54			0x2dd8
639 #define MGA_WR55			0x2ddc
640 #define MGA_WR56			0x2de0
641 #define MGA_WR57			0x2de4
642 #define MGA_WR58			0x2de8
643 #define MGA_WR59			0x2dec
644 #define MGA_WR60			0x2df0
645 #define MGA_WR61			0x2df4
646 #define MGA_WR62			0x2df8
647 #define MGA_WR63			0x2dfc
648 #	define MGA_G400_WR_MAGIC		(1 << 6)
649 #	define MGA_G400_WR56_MAGIC		0x46480000	/* 12800.0f */
650 
651 #define MGA_ILOAD_ALIGN		64
652 #define MGA_ILOAD_MASK		(MGA_ILOAD_ALIGN - 1)
653 
654 #define MGA_DWGCTL_FLUSH	(MGA_OPCOD_TEXTURE_TRAP |		\
655 				 MGA_ATYPE_I |				\
656 				 MGA_ZMODE_NOZCMP |			\
657 				 MGA_ARZERO |				\
658 				 MGA_SGNZERO |				\
659 				 MGA_BOP_SRC |				\
660 				 (15 << MGA_TRANS_SHIFT))
661 
662 #define MGA_DWGCTL_CLEAR	(MGA_OPCOD_TRAP |			\
663 				 MGA_ZMODE_NOZCMP |			\
664 				 MGA_SOLID |				\
665 				 MGA_ARZERO |				\
666 				 MGA_SGNZERO |				\
667 				 MGA_SHIFTZERO |			\
668 				 MGA_BOP_SRC |				\
669 				 (0 << MGA_TRANS_SHIFT) |		\
670 				 MGA_BLTMOD_BMONOLEF |			\
671 				 MGA_TRANSC |				\
672 				 MGA_CLIPDIS)
673 
674 #define MGA_DWGCTL_COPY		(MGA_OPCOD_BITBLT |			\
675 				 MGA_ATYPE_RPL |			\
676 				 MGA_SGNZERO |				\
677 				 MGA_SHIFTZERO |			\
678 				 MGA_BOP_SRC |				\
679 				 (0 << MGA_TRANS_SHIFT) |		\
680 				 MGA_BLTMOD_BFCOL |			\
681 				 MGA_CLIPDIS)
682 
683 /* Simple idle test.
684  */
685 static __inline__ int mga_is_idle(drm_mga_private_t * dev_priv)
686 {
687 	u32 status = MGA_READ(MGA_STATUS) & MGA_ENGINE_IDLE_MASK;
688 	return (status == MGA_ENDPRDMASTS);
689 }
690 
691 #endif
692