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mga_drv.h
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1 /* mga_drv.h -- Private header for the Matrox G200/G400 driver -*- linux-c -*-
2  * Created: Mon Dec 13 01:50:01 1999 by [email protected]
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 <[email protected]>
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 "20051102"
42 
43 #define DRIVER_MAJOR 3
44 #define DRIVER_MINOR 2
45 #define DRIVER_PATCHLEVEL 1
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 
95  int used_new_dma_init;
96 
101  u32 dma_access;
102 
108  u32 wagp_enable;
109 
115 
116  resource_size_t mmio_base;
117  resource_size_t mmio_size;
118 
120  u32 clear_cmd;
121  u32 maccess;
122 
123  atomic_t vbl_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 int mga_warp_install_microcode(drm_mga_private_t *dev_priv);
181 extern int mga_warp_init(drm_mga_private_t *dev_priv);
182 
183  /* mga_irq.c */
184 extern int mga_enable_vblank(struct drm_device *dev, int crtc);
185 extern void mga_disable_vblank(struct drm_device *dev, int crtc);
186 extern u32 mga_get_vblank_counter(struct drm_device *dev, int crtc);
187 extern int mga_driver_fence_wait(struct drm_device *dev, unsigned int *sequence);
188 extern int mga_driver_vblank_wait(struct drm_device *dev, unsigned int *sequence);
189 extern irqreturn_t mga_driver_irq_handler(DRM_IRQ_ARGS);
190 extern void mga_driver_irq_preinstall(struct drm_device *dev);
191 extern int mga_driver_irq_postinstall(struct drm_device *dev);
192 extern void mga_driver_irq_uninstall(struct drm_device *dev);
193 extern long mga_compat_ioctl(struct file *filp, unsigned int cmd,
194  unsigned long arg);
195 
196 #define mga_flush_write_combine() DRM_WRITEMEMORYBARRIER()
197 
198 #define MGA_READ8(reg) DRM_READ8(dev_priv->mmio, (reg))
199 #define MGA_READ(reg) DRM_READ32(dev_priv->mmio, (reg))
200 #define MGA_WRITE8(reg, val) DRM_WRITE8(dev_priv->mmio, (reg), (val))
201 #define MGA_WRITE(reg, val) DRM_WRITE32(dev_priv->mmio, (reg), (val))
202 
203 #define DWGREG0 0x1c00
204 #define DWGREG0_END 0x1dff
205 #define DWGREG1 0x2c00
206 #define DWGREG1_END 0x2dff
207 
208 #define ISREG0(r) (r >= DWGREG0 && r <= DWGREG0_END)
209 #define DMAREG0(r) (u8)((r - DWGREG0) >> 2)
210 #define DMAREG1(r) (u8)(((r - DWGREG1) >> 2) | 0x80)
211 #define DMAREG(r) (ISREG0(r) ? DMAREG0(r) : DMAREG1(r))
212 
213 /* ================================================================
214  * Helper macross...
215  */
216 
217 #define MGA_EMIT_STATE(dev_priv, dirty) \
218 do { \
219  if ((dirty) & ~MGA_UPLOAD_CLIPRECTS) { \
220  if (dev_priv->chipset >= MGA_CARD_TYPE_G400) \
221  mga_g400_emit_state(dev_priv); \
222  else \
223  mga_g200_emit_state(dev_priv); \
224  } \
225 } while (0)
226 
227 #define WRAP_TEST_WITH_RETURN(dev_priv) \
228 do { \
229  if (test_bit(0, &dev_priv->prim.wrapped)) { \
230  if (mga_is_idle(dev_priv)) { \
231  mga_do_dma_wrap_end(dev_priv); \
232  } else if (dev_priv->prim.space < \
233  dev_priv->prim.high_mark) { \
234  if (MGA_DMA_DEBUG) \
235  DRM_INFO("wrap...\n"); \
236  return -EBUSY; \
237  } \
238  } \
239 } while (0)
240 
241 #define WRAP_WAIT_WITH_RETURN(dev_priv) \
242 do { \
243  if (test_bit(0, &dev_priv->prim.wrapped)) { \
244  if (mga_do_wait_for_idle(dev_priv) < 0) { \
245  if (MGA_DMA_DEBUG) \
246  DRM_INFO("wrap...\n"); \
247  return -EBUSY; \
248  } \
249  mga_do_dma_wrap_end(dev_priv); \
250  } \
251 } while (0)
252 
253 /* ================================================================
254  * Primary DMA command stream
255  */
256 
257 #define MGA_VERBOSE 0
258 
259 #define DMA_LOCALS unsigned int write; volatile u8 *prim;
260 
261 #define DMA_BLOCK_SIZE (5 * sizeof(u32))
262 
263 #define BEGIN_DMA(n) \
264 do { \
265  if (MGA_VERBOSE) { \
266  DRM_INFO("BEGIN_DMA(%d)\n", (n)); \
267  DRM_INFO(" space=0x%x req=0x%Zx\n", \
268  dev_priv->prim.space, (n) * DMA_BLOCK_SIZE); \
269  } \
270  prim = dev_priv->prim.start; \
271  write = dev_priv->prim.tail; \
272 } while (0)
273 
274 #define BEGIN_DMA_WRAP() \
275 do { \
276  if (MGA_VERBOSE) { \
277  DRM_INFO("BEGIN_DMA()\n"); \
278  DRM_INFO(" space=0x%x\n", dev_priv->prim.space); \
279  } \
280  prim = dev_priv->prim.start; \
281  write = dev_priv->prim.tail; \
282 } while (0)
283 
284 #define ADVANCE_DMA() \
285 do { \
286  dev_priv->prim.tail = write; \
287  if (MGA_VERBOSE) \
288  DRM_INFO("ADVANCE_DMA() tail=0x%05x sp=0x%x\n", \
289  write, dev_priv->prim.space); \
290 } while (0)
291 
292 #define FLUSH_DMA() \
293 do { \
294  if (0) { \
295  DRM_INFO("\n"); \
296  DRM_INFO(" tail=0x%06x head=0x%06lx\n", \
297  dev_priv->prim.tail, \
298  (unsigned long)(MGA_READ(MGA_PRIMADDRESS) - \
299  dev_priv->primary->offset)); \
300  } \
301  if (!test_bit(0, &dev_priv->prim.wrapped)) { \
302  if (dev_priv->prim.space < dev_priv->prim.high_mark) \
303  mga_do_dma_wrap_start(dev_priv); \
304  else \
305  mga_do_dma_flush(dev_priv); \
306  } \
307 } while (0)
308 
309 /* Never use this, always use DMA_BLOCK(...) for primary DMA output.
310  */
311 #define DMA_WRITE(offset, val) \
312 do { \
313  if (MGA_VERBOSE) \
314  DRM_INFO(" DMA_WRITE( 0x%08x ) at 0x%04Zx\n", \
315  (u32)(val), write + (offset) * sizeof(u32)); \
316  *(volatile u32 *)(prim + write + (offset) * sizeof(u32)) = val; \
317 } while (0)
318 
319 #define DMA_BLOCK(reg0, val0, reg1, val1, reg2, val2, reg3, val3) \
320 do { \
321  DMA_WRITE(0, ((DMAREG(reg0) << 0) | \
322  (DMAREG(reg1) << 8) | \
323  (DMAREG(reg2) << 16) | \
324  (DMAREG(reg3) << 24))); \
325  DMA_WRITE(1, val0); \
326  DMA_WRITE(2, val1); \
327  DMA_WRITE(3, val2); \
328  DMA_WRITE(4, val3); \
329  write += DMA_BLOCK_SIZE; \
330 } while (0)
331 
332 /* Buffer aging via primary DMA stream head pointer.
333  */
334 
335 #define SET_AGE(age, h, w) \
336 do { \
337  (age)->head = h; \
338  (age)->wrap = w; \
339 } while (0)
340 
341 #define TEST_AGE(age, h, w) ((age)->wrap < w || \
342  ((age)->wrap == w && \
343  (age)->head < h))
344 
345 #define AGE_BUFFER(buf_priv) \
346 do { \
347  drm_mga_freelist_t *entry = (buf_priv)->list_entry; \
348  if ((buf_priv)->dispatched) { \
349  entry->age.head = (dev_priv->prim.tail + \
350  dev_priv->primary->offset); \
351  entry->age.wrap = dev_priv->sarea_priv->last_wrap; \
352  } else { \
353  entry->age.head = 0; \
354  entry->age.wrap = 0; \
355  } \
356 } while (0)
357 
358 #define MGA_ENGINE_IDLE_MASK (MGA_SOFTRAPEN | \
359  MGA_DWGENGSTS | \
360  MGA_ENDPRDMASTS)
361 #define MGA_DMA_IDLE_MASK (MGA_SOFTRAPEN | \
362  MGA_ENDPRDMASTS)
363 
364 #define MGA_DMA_DEBUG 0
365 
366 /* A reduced set of the mga registers.
367  */
368 #define MGA_CRTC_INDEX 0x1fd4
369 #define MGA_CRTC_DATA 0x1fd5
370 
371 /* CRTC11 */
372 #define MGA_VINTCLR (1 << 4)
373 #define MGA_VINTEN (1 << 5)
374 
375 #define MGA_ALPHACTRL 0x2c7c
376 #define MGA_AR0 0x1c60
377 #define MGA_AR1 0x1c64
378 #define MGA_AR2 0x1c68
379 #define MGA_AR3 0x1c6c
380 #define MGA_AR4 0x1c70
381 #define MGA_AR5 0x1c74
382 #define MGA_AR6 0x1c78
383 
384 #define MGA_CXBNDRY 0x1c80
385 #define MGA_CXLEFT 0x1ca0
386 #define MGA_CXRIGHT 0x1ca4
387 
388 #define MGA_DMAPAD 0x1c54
389 #define MGA_DSTORG 0x2cb8
390 #define MGA_DWGCTL 0x1c00
391 # define MGA_OPCOD_MASK (15 << 0)
392 # define MGA_OPCOD_TRAP (4 << 0)
393 # define MGA_OPCOD_TEXTURE_TRAP (6 << 0)
394 # define MGA_OPCOD_BITBLT (8 << 0)
395 # define MGA_OPCOD_ILOAD (9 << 0)
396 # define MGA_ATYPE_MASK (7 << 4)
397 # define MGA_ATYPE_RPL (0 << 4)
398 # define MGA_ATYPE_RSTR (1 << 4)
399 # define MGA_ATYPE_ZI (3 << 4)
400 # define MGA_ATYPE_BLK (4 << 4)
401 # define MGA_ATYPE_I (7 << 4)
402 # define MGA_LINEAR (1 << 7)
403 # define MGA_ZMODE_MASK (7 << 8)
404 # define MGA_ZMODE_NOZCMP (0 << 8)
405 # define MGA_ZMODE_ZE (2 << 8)
406 # define MGA_ZMODE_ZNE (3 << 8)
407 # define MGA_ZMODE_ZLT (4 << 8)
408 # define MGA_ZMODE_ZLTE (5 << 8)
409 # define MGA_ZMODE_ZGT (6 << 8)
410 # define MGA_ZMODE_ZGTE (7 << 8)
411 # define MGA_SOLID (1 << 11)
412 # define MGA_ARZERO (1 << 12)
413 # define MGA_SGNZERO (1 << 13)
414 # define MGA_SHIFTZERO (1 << 14)
415 # define MGA_BOP_MASK (15 << 16)
416 # define MGA_BOP_ZERO (0 << 16)
417 # define MGA_BOP_DST (10 << 16)
418 # define MGA_BOP_SRC (12 << 16)
419 # define MGA_BOP_ONE (15 << 16)
420 # define MGA_TRANS_SHIFT 20
421 # define MGA_TRANS_MASK (15 << 20)
422 # define MGA_BLTMOD_MASK (15 << 25)
423 # define MGA_BLTMOD_BMONOLEF (0 << 25)
424 # define MGA_BLTMOD_BMONOWF (4 << 25)
425 # define MGA_BLTMOD_PLAN (1 << 25)
426 # define MGA_BLTMOD_BFCOL (2 << 25)
427 # define MGA_BLTMOD_BU32BGR (3 << 25)
428 # define MGA_BLTMOD_BU32RGB (7 << 25)
429 # define MGA_BLTMOD_BU24BGR (11 << 25)
430 # define MGA_BLTMOD_BU24RGB (15 << 25)
431 # define MGA_PATTERN (1 << 29)
432 # define MGA_TRANSC (1 << 30)
433 # define MGA_CLIPDIS (1 << 31)
434 #define MGA_DWGSYNC 0x2c4c
435 
436 #define MGA_FCOL 0x1c24
437 #define MGA_FIFOSTATUS 0x1e10
438 #define MGA_FOGCOL 0x1cf4
439 #define MGA_FXBNDRY 0x1c84
440 #define MGA_FXLEFT 0x1ca8
441 #define MGA_FXRIGHT 0x1cac
442 
443 #define MGA_ICLEAR 0x1e18
444 # define MGA_SOFTRAPICLR (1 << 0)
445 # define MGA_VLINEICLR (1 << 5)
446 #define MGA_IEN 0x1e1c
447 # define MGA_SOFTRAPIEN (1 << 0)
448 # define MGA_VLINEIEN (1 << 5)
449 
450 #define MGA_LEN 0x1c5c
451 
452 #define MGA_MACCESS 0x1c04
453 
454 #define MGA_PITCH 0x1c8c
455 #define MGA_PLNWT 0x1c1c
456 #define MGA_PRIMADDRESS 0x1e58
457 # define MGA_DMA_GENERAL (0 << 0)
458 # define MGA_DMA_BLIT (1 << 0)
459 # define MGA_DMA_VECTOR (2 << 0)
460 # define MGA_DMA_VERTEX (3 << 0)
461 #define MGA_PRIMEND 0x1e5c
462 # define MGA_PRIMNOSTART (1 << 0)
463 # define MGA_PAGPXFER (1 << 1)
464 #define MGA_PRIMPTR 0x1e50
465 # define MGA_PRIMPTREN0 (1 << 0)
466 # define MGA_PRIMPTREN1 (1 << 1)
467 
468 #define MGA_RST 0x1e40
469 # define MGA_SOFTRESET (1 << 0)
470 # define MGA_SOFTEXTRST (1 << 1)
471 
472 #define MGA_SECADDRESS 0x2c40
473 #define MGA_SECEND 0x2c44
474 #define MGA_SETUPADDRESS 0x2cd0
475 #define MGA_SETUPEND 0x2cd4
476 #define MGA_SGN 0x1c58
477 #define MGA_SOFTRAP 0x2c48
478 #define MGA_SRCORG 0x2cb4
479 # define MGA_SRMMAP_MASK (1 << 0)
480 # define MGA_SRCMAP_FB (0 << 0)
481 # define MGA_SRCMAP_SYSMEM (1 << 0)
482 # define MGA_SRCACC_MASK (1 << 1)
483 # define MGA_SRCACC_PCI (0 << 1)
484 # define MGA_SRCACC_AGP (1 << 1)
485 #define MGA_STATUS 0x1e14
486 # define MGA_SOFTRAPEN (1 << 0)
487 # define MGA_VSYNCPEN (1 << 4)
488 # define MGA_VLINEPEN (1 << 5)
489 # define MGA_DWGENGSTS (1 << 16)
490 # define MGA_ENDPRDMASTS (1 << 17)
491 #define MGA_STENCIL 0x2cc8
492 #define MGA_STENCILCTL 0x2ccc
493 
494 #define MGA_TDUALSTAGE0 0x2cf8
495 #define MGA_TDUALSTAGE1 0x2cfc
496 #define MGA_TEXBORDERCOL 0x2c5c
497 #define MGA_TEXCTL 0x2c30
498 #define MGA_TEXCTL2 0x2c3c
499 # define MGA_DUALTEX (1 << 7)
500 # define MGA_G400_TC2_MAGIC (1 << 15)
501 # define MGA_MAP1_ENABLE (1 << 31)
502 #define MGA_TEXFILTER 0x2c58
503 #define MGA_TEXHEIGHT 0x2c2c
504 #define MGA_TEXORG 0x2c24
505 # define MGA_TEXORGMAP_MASK (1 << 0)
506 # define MGA_TEXORGMAP_FB (0 << 0)
507 # define MGA_TEXORGMAP_SYSMEM (1 << 0)
508 # define MGA_TEXORGACC_MASK (1 << 1)
509 # define MGA_TEXORGACC_PCI (0 << 1)
510 # define MGA_TEXORGACC_AGP (1 << 1)
511 #define MGA_TEXORG1 0x2ca4
512 #define MGA_TEXORG2 0x2ca8
513 #define MGA_TEXORG3 0x2cac
514 #define MGA_TEXORG4 0x2cb0
515 #define MGA_TEXTRANS 0x2c34
516 #define MGA_TEXTRANSHIGH 0x2c38
517 #define MGA_TEXWIDTH 0x2c28
518 
519 #define MGA_WACCEPTSEQ 0x1dd4
520 #define MGA_WCODEADDR 0x1e6c
521 #define MGA_WFLAG 0x1dc4
522 #define MGA_WFLAG1 0x1de0
523 #define MGA_WFLAGNB 0x1e64
524 #define MGA_WFLAGNB1 0x1e08
525 #define MGA_WGETMSB 0x1dc8
526 #define MGA_WIADDR 0x1dc0
527 #define MGA_WIADDR2 0x1dd8
528 # define MGA_WMODE_SUSPEND (0 << 0)
529 # define MGA_WMODE_RESUME (1 << 0)
530 # define MGA_WMODE_JUMP (2 << 0)
531 # define MGA_WMODE_START (3 << 0)
532 # define MGA_WAGP_ENABLE (1 << 2)
533 #define MGA_WMISC 0x1e70
534 # define MGA_WUCODECACHE_ENABLE (1 << 0)
535 # define MGA_WMASTER_ENABLE (1 << 1)
536 # define MGA_WCACHEFLUSH_ENABLE (1 << 3)
537 #define MGA_WVRTXSZ 0x1dcc
538 
539 #define MGA_YBOT 0x1c9c
540 #define MGA_YDST 0x1c90
541 #define MGA_YDSTLEN 0x1c88
542 #define MGA_YDSTORG 0x1c94
543 #define MGA_YTOP 0x1c98
544 
545 #define MGA_ZORG 0x1c0c
546 
547 /* This finishes the current batch of commands
548  */
549 #define MGA_EXEC 0x0100
550 
551 /* AGP PLL encoding (for G200 only).
552  */
553 #define MGA_AGP_PLL 0x1e4c
554 # define MGA_AGP2XPLL_DISABLE (0 << 0)
555 # define MGA_AGP2XPLL_ENABLE (1 << 0)
556 
557 /* Warp registers
558  */
559 #define MGA_WR0 0x2d00
560 #define MGA_WR1 0x2d04
561 #define MGA_WR2 0x2d08
562 #define MGA_WR3 0x2d0c
563 #define MGA_WR4 0x2d10
564 #define MGA_WR5 0x2d14
565 #define MGA_WR6 0x2d18
566 #define MGA_WR7 0x2d1c
567 #define MGA_WR8 0x2d20
568 #define MGA_WR9 0x2d24
569 #define MGA_WR10 0x2d28
570 #define MGA_WR11 0x2d2c
571 #define MGA_WR12 0x2d30
572 #define MGA_WR13 0x2d34
573 #define MGA_WR14 0x2d38
574 #define MGA_WR15 0x2d3c
575 #define MGA_WR16 0x2d40
576 #define MGA_WR17 0x2d44
577 #define MGA_WR18 0x2d48
578 #define MGA_WR19 0x2d4c
579 #define MGA_WR20 0x2d50
580 #define MGA_WR21 0x2d54
581 #define MGA_WR22 0x2d58
582 #define MGA_WR23 0x2d5c
583 #define MGA_WR24 0x2d60
584 #define MGA_WR25 0x2d64
585 #define MGA_WR26 0x2d68
586 #define MGA_WR27 0x2d6c
587 #define MGA_WR28 0x2d70
588 #define MGA_WR29 0x2d74
589 #define MGA_WR30 0x2d78
590 #define MGA_WR31 0x2d7c
591 #define MGA_WR32 0x2d80
592 #define MGA_WR33 0x2d84
593 #define MGA_WR34 0x2d88
594 #define MGA_WR35 0x2d8c
595 #define MGA_WR36 0x2d90
596 #define MGA_WR37 0x2d94
597 #define MGA_WR38 0x2d98
598 #define MGA_WR39 0x2d9c
599 #define MGA_WR40 0x2da0
600 #define MGA_WR41 0x2da4
601 #define MGA_WR42 0x2da8
602 #define MGA_WR43 0x2dac
603 #define MGA_WR44 0x2db0
604 #define MGA_WR45 0x2db4
605 #define MGA_WR46 0x2db8
606 #define MGA_WR47 0x2dbc
607 #define MGA_WR48 0x2dc0
608 #define MGA_WR49 0x2dc4
609 #define MGA_WR50 0x2dc8
610 #define MGA_WR51 0x2dcc
611 #define MGA_WR52 0x2dd0
612 #define MGA_WR53 0x2dd4
613 #define MGA_WR54 0x2dd8
614 #define MGA_WR55 0x2ddc
615 #define MGA_WR56 0x2de0
616 #define MGA_WR57 0x2de4
617 #define MGA_WR58 0x2de8
618 #define MGA_WR59 0x2dec
619 #define MGA_WR60 0x2df0
620 #define MGA_WR61 0x2df4
621 #define MGA_WR62 0x2df8
622 #define MGA_WR63 0x2dfc
623 # define MGA_G400_WR_MAGIC (1 << 6)
624 # define MGA_G400_WR56_MAGIC 0x46480000 /* 12800.0f */
625 
626 #define MGA_ILOAD_ALIGN 64
627 #define MGA_ILOAD_MASK (MGA_ILOAD_ALIGN - 1)
628 
629 #define MGA_DWGCTL_FLUSH (MGA_OPCOD_TEXTURE_TRAP | \
630  MGA_ATYPE_I | \
631  MGA_ZMODE_NOZCMP | \
632  MGA_ARZERO | \
633  MGA_SGNZERO | \
634  MGA_BOP_SRC | \
635  (15 << MGA_TRANS_SHIFT))
636 
637 #define MGA_DWGCTL_CLEAR (MGA_OPCOD_TRAP | \
638  MGA_ZMODE_NOZCMP | \
639  MGA_SOLID | \
640  MGA_ARZERO | \
641  MGA_SGNZERO | \
642  MGA_SHIFTZERO | \
643  MGA_BOP_SRC | \
644  (0 << MGA_TRANS_SHIFT) | \
645  MGA_BLTMOD_BMONOLEF | \
646  MGA_TRANSC | \
647  MGA_CLIPDIS)
648 
649 #define MGA_DWGCTL_COPY (MGA_OPCOD_BITBLT | \
650  MGA_ATYPE_RPL | \
651  MGA_SGNZERO | \
652  MGA_SHIFTZERO | \
653  MGA_BOP_SRC | \
654  (0 << MGA_TRANS_SHIFT) | \
655  MGA_BLTMOD_BFCOL | \
656  MGA_CLIPDIS)
657 
658 /* Simple idle test.
659  */
660 static __inline__ int mga_is_idle(drm_mga_private_t *dev_priv)
661 {
662  u32 status = MGA_READ(MGA_STATUS) & MGA_ENGINE_IDLE_MASK;
663  return (status == MGA_ENDPRDMASTS);
664 }
665 
666 #endif
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