1 /* mga_state.c -- State support for MGA G200/G400 -*- linux-c -*-
2 * Created: Thu Jan 27 02:53:43 2000 by jhartmann@precisioninsight.com
3 */
4 /*-
5 * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
6 * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
7 * All Rights Reserved.
8 *
9 * Permission is hereby granted, free of charge, to any person obtaining a
10 * copy of this software and associated documentation files (the "Software"),
11 * to deal in the Software without restriction, including without limitation
12 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
13 * and/or sell copies of the Software, and to permit persons to whom the
14 * Software is furnished to do so, subject to the following conditions:
15 *
16 * The above copyright notice and this permission notice (including the next
17 * paragraph) shall be included in all copies or substantial portions of the
18 * Software.
19 *
20 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
21 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
22 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
23 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
24 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
25 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
26 * OTHER DEALINGS IN THE SOFTWARE.
27 *
28 * Authors:
29 * Jeff Hartmann <jhartmann@valinux.com>
30 * Keith Whitwell <keith@tungstengraphics.com>
31 *
32 * Rewritten by:
33 * Gareth Hughes <gareth@valinux.com>
34 */
35
36 #include <sys/cdefs.h>
37 __FBSDID("$FreeBSD: releng/9.0/sys/dev/drm/mga_state.c 182080 2008-08-23 20:59:12Z rnoland $");
38
39 #include "dev/drm/drmP.h"
40 #include "dev/drm/drm.h"
41 #include "dev/drm/mga_drm.h"
42 #include "dev/drm/mga_drv.h"
43
44 /* ================================================================
45 * DMA hardware state programming functions
46 */
47
48 static void mga_emit_clip_rect(drm_mga_private_t * dev_priv,
49 struct drm_clip_rect * box)
50 {
51 drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
52 drm_mga_context_regs_t *ctx = &sarea_priv->context_state;
53 unsigned int pitch = dev_priv->front_pitch;
54 DMA_LOCALS;
55
56 BEGIN_DMA(2);
57
58 /* Force reset of DWGCTL on G400 (eliminates clip disable bit).
59 */
60 if (dev_priv->chipset >= MGA_CARD_TYPE_G400) {
61 DMA_BLOCK(MGA_DWGCTL, ctx->dwgctl,
62 MGA_LEN + MGA_EXEC, 0x80000000,
63 MGA_DWGCTL, ctx->dwgctl,
64 MGA_LEN + MGA_EXEC, 0x80000000);
65 }
66 DMA_BLOCK(MGA_DMAPAD, 0x00000000,
67 MGA_CXBNDRY, ((box->x2 - 1) << 16) | box->x1,
68 MGA_YTOP, box->y1 * pitch, MGA_YBOT, (box->y2 - 1) * pitch);
69
70 ADVANCE_DMA();
71 }
72
73 static __inline__ void mga_g200_emit_context(drm_mga_private_t * dev_priv)
74 {
75 drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
76 drm_mga_context_regs_t *ctx = &sarea_priv->context_state;
77 DMA_LOCALS;
78
79 BEGIN_DMA(3);
80
81 DMA_BLOCK(MGA_DSTORG, ctx->dstorg,
82 MGA_MACCESS, ctx->maccess,
83 MGA_PLNWT, ctx->plnwt, MGA_DWGCTL, ctx->dwgctl);
84
85 DMA_BLOCK(MGA_ALPHACTRL, ctx->alphactrl,
86 MGA_FOGCOL, ctx->fogcolor,
87 MGA_WFLAG, ctx->wflag, MGA_ZORG, dev_priv->depth_offset);
88
89 DMA_BLOCK(MGA_FCOL, ctx->fcol,
90 MGA_DMAPAD, 0x00000000,
91 MGA_DMAPAD, 0x00000000, MGA_DMAPAD, 0x00000000);
92
93 ADVANCE_DMA();
94 }
95
96 static __inline__ void mga_g400_emit_context(drm_mga_private_t * dev_priv)
97 {
98 drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
99 drm_mga_context_regs_t *ctx = &sarea_priv->context_state;
100 DMA_LOCALS;
101
102 BEGIN_DMA(4);
103
104 DMA_BLOCK(MGA_DSTORG, ctx->dstorg,
105 MGA_MACCESS, ctx->maccess,
106 MGA_PLNWT, ctx->plnwt,
107 MGA_DWGCTL, ctx->dwgctl);
108
109 DMA_BLOCK(MGA_ALPHACTRL, ctx->alphactrl,
110 MGA_FOGCOL, ctx->fogcolor,
111 MGA_WFLAG, ctx->wflag,
112 MGA_ZORG, dev_priv->depth_offset);
113
114 DMA_BLOCK(MGA_WFLAG1, ctx->wflag,
115 MGA_TDUALSTAGE0, ctx->tdualstage0,
116 MGA_TDUALSTAGE1, ctx->tdualstage1,
117 MGA_FCOL, ctx->fcol);
118
119 DMA_BLOCK(MGA_STENCIL, ctx->stencil,
120 MGA_STENCILCTL, ctx->stencilctl,
121 MGA_DMAPAD, 0x00000000,
122 MGA_DMAPAD, 0x00000000);
123
124 ADVANCE_DMA();
125 }
126
127 static __inline__ void mga_g200_emit_tex0(drm_mga_private_t * dev_priv)
128 {
129 drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
130 drm_mga_texture_regs_t *tex = &sarea_priv->tex_state[0];
131 DMA_LOCALS;
132
133 BEGIN_DMA(4);
134
135 DMA_BLOCK(MGA_TEXCTL2, tex->texctl2,
136 MGA_TEXCTL, tex->texctl,
137 MGA_TEXFILTER, tex->texfilter,
138 MGA_TEXBORDERCOL, tex->texbordercol);
139
140 DMA_BLOCK(MGA_TEXORG, tex->texorg,
141 MGA_TEXORG1, tex->texorg1,
142 MGA_TEXORG2, tex->texorg2,
143 MGA_TEXORG3, tex->texorg3);
144
145 DMA_BLOCK(MGA_TEXORG4, tex->texorg4,
146 MGA_TEXWIDTH, tex->texwidth,
147 MGA_TEXHEIGHT, tex->texheight,
148 MGA_WR24, tex->texwidth);
149
150 DMA_BLOCK(MGA_WR34, tex->texheight,
151 MGA_TEXTRANS, 0x0000ffff,
152 MGA_TEXTRANSHIGH, 0x0000ffff,
153 MGA_DMAPAD, 0x00000000);
154
155 ADVANCE_DMA();
156 }
157
158 static __inline__ void mga_g400_emit_tex0(drm_mga_private_t * dev_priv)
159 {
160 drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
161 drm_mga_texture_regs_t *tex = &sarea_priv->tex_state[0];
162 DMA_LOCALS;
163
164 /* printk("mga_g400_emit_tex0 %x %x %x\n", tex->texorg, */
165 /* tex->texctl, tex->texctl2); */
166
167 BEGIN_DMA(6);
168
169 DMA_BLOCK(MGA_TEXCTL2, tex->texctl2 | MGA_G400_TC2_MAGIC,
170 MGA_TEXCTL, tex->texctl,
171 MGA_TEXFILTER, tex->texfilter,
172 MGA_TEXBORDERCOL, tex->texbordercol);
173
174 DMA_BLOCK(MGA_TEXORG, tex->texorg,
175 MGA_TEXORG1, tex->texorg1,
176 MGA_TEXORG2, tex->texorg2,
177 MGA_TEXORG3, tex->texorg3);
178
179 DMA_BLOCK(MGA_TEXORG4, tex->texorg4,
180 MGA_TEXWIDTH, tex->texwidth,
181 MGA_TEXHEIGHT, tex->texheight,
182 MGA_WR49, 0x00000000);
183
184 DMA_BLOCK(MGA_WR57, 0x00000000,
185 MGA_WR53, 0x00000000,
186 MGA_WR61, 0x00000000,
187 MGA_WR52, MGA_G400_WR_MAGIC);
188
189 DMA_BLOCK(MGA_WR60, MGA_G400_WR_MAGIC,
190 MGA_WR54, tex->texwidth | MGA_G400_WR_MAGIC,
191 MGA_WR62, tex->texheight | MGA_G400_WR_MAGIC,
192 MGA_DMAPAD, 0x00000000);
193
194 DMA_BLOCK(MGA_DMAPAD, 0x00000000,
195 MGA_DMAPAD, 0x00000000,
196 MGA_TEXTRANS, 0x0000ffff,
197 MGA_TEXTRANSHIGH, 0x0000ffff);
198
199 ADVANCE_DMA();
200 }
201
202 static __inline__ void mga_g400_emit_tex1(drm_mga_private_t * dev_priv)
203 {
204 drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
205 drm_mga_texture_regs_t *tex = &sarea_priv->tex_state[1];
206 DMA_LOCALS;
207
208 /* printk("mga_g400_emit_tex1 %x %x %x\n", tex->texorg, */
209 /* tex->texctl, tex->texctl2); */
210
211 BEGIN_DMA(5);
212
213 DMA_BLOCK(MGA_TEXCTL2, (tex->texctl2 |
214 MGA_MAP1_ENABLE |
215 MGA_G400_TC2_MAGIC),
216 MGA_TEXCTL, tex->texctl,
217 MGA_TEXFILTER, tex->texfilter,
218 MGA_TEXBORDERCOL, tex->texbordercol);
219
220 DMA_BLOCK(MGA_TEXORG, tex->texorg,
221 MGA_TEXORG1, tex->texorg1,
222 MGA_TEXORG2, tex->texorg2,
223 MGA_TEXORG3, tex->texorg3);
224
225 DMA_BLOCK(MGA_TEXORG4, tex->texorg4,
226 MGA_TEXWIDTH, tex->texwidth,
227 MGA_TEXHEIGHT, tex->texheight,
228 MGA_WR49, 0x00000000);
229
230 DMA_BLOCK(MGA_WR57, 0x00000000,
231 MGA_WR53, 0x00000000,
232 MGA_WR61, 0x00000000,
233 MGA_WR52, tex->texwidth | MGA_G400_WR_MAGIC);
234
235 DMA_BLOCK(MGA_WR60, tex->texheight | MGA_G400_WR_MAGIC,
236 MGA_TEXTRANS, 0x0000ffff,
237 MGA_TEXTRANSHIGH, 0x0000ffff,
238 MGA_TEXCTL2, tex->texctl2 | MGA_G400_TC2_MAGIC);
239
240 ADVANCE_DMA();
241 }
242
243 static __inline__ void mga_g200_emit_pipe(drm_mga_private_t * dev_priv)
244 {
245 drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
246 unsigned int pipe = sarea_priv->warp_pipe;
247 DMA_LOCALS;
248
249 BEGIN_DMA(3);
250
251 DMA_BLOCK(MGA_WIADDR, MGA_WMODE_SUSPEND,
252 MGA_WVRTXSZ, 0x00000007,
253 MGA_WFLAG, 0x00000000,
254 MGA_WR24, 0x00000000);
255
256 DMA_BLOCK(MGA_WR25, 0x00000100,
257 MGA_WR34, 0x00000000,
258 MGA_WR42, 0x0000ffff,
259 MGA_WR60, 0x0000ffff);
260
261 /* Padding required to to hardware bug.
262 */
263 DMA_BLOCK(MGA_DMAPAD, 0xffffffff,
264 MGA_DMAPAD, 0xffffffff,
265 MGA_DMAPAD, 0xffffffff,
266 MGA_WIADDR, (dev_priv->warp_pipe_phys[pipe] |
267 MGA_WMODE_START | dev_priv->wagp_enable));
268
269 ADVANCE_DMA();
270 }
271
272 static __inline__ void mga_g400_emit_pipe(drm_mga_private_t * dev_priv)
273 {
274 drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
275 unsigned int pipe = sarea_priv->warp_pipe;
276 DMA_LOCALS;
277
278 /* printk("mga_g400_emit_pipe %x\n", pipe); */
279
280 BEGIN_DMA(10);
281
282 DMA_BLOCK(MGA_WIADDR2, MGA_WMODE_SUSPEND,
283 MGA_DMAPAD, 0x00000000,
284 MGA_DMAPAD, 0x00000000,
285 MGA_DMAPAD, 0x00000000);
286
287 if (pipe & MGA_T2) {
288 DMA_BLOCK(MGA_WVRTXSZ, 0x00001e09,
289 MGA_DMAPAD, 0x00000000,
290 MGA_DMAPAD, 0x00000000,
291 MGA_DMAPAD, 0x00000000);
292
293 DMA_BLOCK(MGA_WACCEPTSEQ, 0x00000000,
294 MGA_WACCEPTSEQ, 0x00000000,
295 MGA_WACCEPTSEQ, 0x00000000,
296 MGA_WACCEPTSEQ, 0x1e000000);
297 } else {
298 if (dev_priv->warp_pipe & MGA_T2) {
299 /* Flush the WARP pipe */
300 DMA_BLOCK(MGA_YDST, 0x00000000,
301 MGA_FXLEFT, 0x00000000,
302 MGA_FXRIGHT, 0x00000001,
303 MGA_DWGCTL, MGA_DWGCTL_FLUSH);
304
305 DMA_BLOCK(MGA_LEN + MGA_EXEC, 0x00000001,
306 MGA_DWGSYNC, 0x00007000,
307 MGA_TEXCTL2, MGA_G400_TC2_MAGIC,
308 MGA_LEN + MGA_EXEC, 0x00000000);
309
310 DMA_BLOCK(MGA_TEXCTL2, (MGA_DUALTEX |
311 MGA_G400_TC2_MAGIC),
312 MGA_LEN + MGA_EXEC, 0x00000000,
313 MGA_TEXCTL2, MGA_G400_TC2_MAGIC,
314 MGA_DMAPAD, 0x00000000);
315 }
316
317 DMA_BLOCK(MGA_WVRTXSZ, 0x00001807,
318 MGA_DMAPAD, 0x00000000,
319 MGA_DMAPAD, 0x00000000,
320 MGA_DMAPAD, 0x00000000);
321
322 DMA_BLOCK(MGA_WACCEPTSEQ, 0x00000000,
323 MGA_WACCEPTSEQ, 0x00000000,
324 MGA_WACCEPTSEQ, 0x00000000,
325 MGA_WACCEPTSEQ, 0x18000000);
326 }
327
328 DMA_BLOCK(MGA_WFLAG, 0x00000000,
329 MGA_WFLAG1, 0x00000000,
330 MGA_WR56, MGA_G400_WR56_MAGIC,
331 MGA_DMAPAD, 0x00000000);
332
333 DMA_BLOCK(MGA_WR49, 0x00000000, /* tex0 */
334 MGA_WR57, 0x00000000, /* tex0 */
335 MGA_WR53, 0x00000000, /* tex1 */
336 MGA_WR61, 0x00000000); /* tex1 */
337
338 DMA_BLOCK(MGA_WR54, MGA_G400_WR_MAGIC, /* tex0 width */
339 MGA_WR62, MGA_G400_WR_MAGIC, /* tex0 height */
340 MGA_WR52, MGA_G400_WR_MAGIC, /* tex1 width */
341 MGA_WR60, MGA_G400_WR_MAGIC); /* tex1 height */
342
343 /* Padding required to to hardware bug */
344 DMA_BLOCK(MGA_DMAPAD, 0xffffffff,
345 MGA_DMAPAD, 0xffffffff,
346 MGA_DMAPAD, 0xffffffff,
347 MGA_WIADDR2, (dev_priv->warp_pipe_phys[pipe] |
348 MGA_WMODE_START | dev_priv->wagp_enable));
349
350 ADVANCE_DMA();
351 }
352
353 static void mga_g200_emit_state(drm_mga_private_t * dev_priv)
354 {
355 drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
356 unsigned int dirty = sarea_priv->dirty;
357
358 if (sarea_priv->warp_pipe != dev_priv->warp_pipe) {
359 mga_g200_emit_pipe(dev_priv);
360 dev_priv->warp_pipe = sarea_priv->warp_pipe;
361 }
362
363 if (dirty & MGA_UPLOAD_CONTEXT) {
364 mga_g200_emit_context(dev_priv);
365 sarea_priv->dirty &= ~MGA_UPLOAD_CONTEXT;
366 }
367
368 if (dirty & MGA_UPLOAD_TEX0) {
369 mga_g200_emit_tex0(dev_priv);
370 sarea_priv->dirty &= ~MGA_UPLOAD_TEX0;
371 }
372 }
373
374 static void mga_g400_emit_state(drm_mga_private_t * dev_priv)
375 {
376 drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
377 unsigned int dirty = sarea_priv->dirty;
378 int multitex = sarea_priv->warp_pipe & MGA_T2;
379
380 if (sarea_priv->warp_pipe != dev_priv->warp_pipe) {
381 mga_g400_emit_pipe(dev_priv);
382 dev_priv->warp_pipe = sarea_priv->warp_pipe;
383 }
384
385 if (dirty & MGA_UPLOAD_CONTEXT) {
386 mga_g400_emit_context(dev_priv);
387 sarea_priv->dirty &= ~MGA_UPLOAD_CONTEXT;
388 }
389
390 if (dirty & MGA_UPLOAD_TEX0) {
391 mga_g400_emit_tex0(dev_priv);
392 sarea_priv->dirty &= ~MGA_UPLOAD_TEX0;
393 }
394
395 if ((dirty & MGA_UPLOAD_TEX1) && multitex) {
396 mga_g400_emit_tex1(dev_priv);
397 sarea_priv->dirty &= ~MGA_UPLOAD_TEX1;
398 }
399 }
400
401 /* ================================================================
402 * SAREA state verification
403 */
404
405 /* Disallow all write destinations except the front and backbuffer.
406 */
407 static int mga_verify_context(drm_mga_private_t * dev_priv)
408 {
409 drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
410 drm_mga_context_regs_t *ctx = &sarea_priv->context_state;
411
412 if (ctx->dstorg != dev_priv->front_offset &&
413 ctx->dstorg != dev_priv->back_offset) {
414 DRM_ERROR("*** bad DSTORG: %x (front %x, back %x)\n\n",
415 ctx->dstorg, dev_priv->front_offset,
416 dev_priv->back_offset);
417 ctx->dstorg = 0;
418 return -EINVAL;
419 }
420
421 return 0;
422 }
423
424 /* Disallow texture reads from PCI space.
425 */
426 static int mga_verify_tex(drm_mga_private_t * dev_priv, int unit)
427 {
428 drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
429 drm_mga_texture_regs_t *tex = &sarea_priv->tex_state[unit];
430 unsigned int org;
431
432 org = tex->texorg & (MGA_TEXORGMAP_MASK | MGA_TEXORGACC_MASK);
433
434 if (org == (MGA_TEXORGMAP_SYSMEM | MGA_TEXORGACC_PCI)) {
435 DRM_ERROR("*** bad TEXORG: 0x%x, unit %d\n", tex->texorg, unit);
436 tex->texorg = 0;
437 return -EINVAL;
438 }
439
440 return 0;
441 }
442
443 static int mga_verify_state(drm_mga_private_t * dev_priv)
444 {
445 drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
446 unsigned int dirty = sarea_priv->dirty;
447 int ret = 0;
448
449 if (sarea_priv->nbox > MGA_NR_SAREA_CLIPRECTS)
450 sarea_priv->nbox = MGA_NR_SAREA_CLIPRECTS;
451
452 if (dirty & MGA_UPLOAD_CONTEXT)
453 ret |= mga_verify_context(dev_priv);
454
455 if (dirty & MGA_UPLOAD_TEX0)
456 ret |= mga_verify_tex(dev_priv, 0);
457
458 if (dev_priv->chipset >= MGA_CARD_TYPE_G400) {
459 if (dirty & MGA_UPLOAD_TEX1)
460 ret |= mga_verify_tex(dev_priv, 1);
461
462 if (dirty & MGA_UPLOAD_PIPE)
463 ret |= (sarea_priv->warp_pipe > MGA_MAX_G400_PIPES);
464 } else {
465 if (dirty & MGA_UPLOAD_PIPE)
466 ret |= (sarea_priv->warp_pipe > MGA_MAX_G200_PIPES);
467 }
468
469 return (ret == 0);
470 }
471
472 static int mga_verify_iload(drm_mga_private_t * dev_priv,
473 unsigned int dstorg, unsigned int length)
474 {
475 if (dstorg < dev_priv->texture_offset ||
476 dstorg + length > (dev_priv->texture_offset +
477 dev_priv->texture_size)) {
478 DRM_ERROR("*** bad iload DSTORG: 0x%x\n", dstorg);
479 return -EINVAL;
480 }
481
482 if (length & MGA_ILOAD_MASK) {
483 DRM_ERROR("*** bad iload length: 0x%x\n",
484 length & MGA_ILOAD_MASK);
485 return -EINVAL;
486 }
487
488 return 0;
489 }
490
491 static int mga_verify_blit(drm_mga_private_t * dev_priv,
492 unsigned int srcorg, unsigned int dstorg)
493 {
494 if ((srcorg & 0x3) == (MGA_SRCACC_PCI | MGA_SRCMAP_SYSMEM) ||
495 (dstorg & 0x3) == (MGA_SRCACC_PCI | MGA_SRCMAP_SYSMEM)) {
496 DRM_ERROR("*** bad blit: src=0x%x dst=0x%x\n", srcorg, dstorg);
497 return -EINVAL;
498 }
499 return 0;
500 }
501
502 /* ================================================================
503 *
504 */
505
506 static void mga_dma_dispatch_clear(struct drm_device * dev, drm_mga_clear_t * clear)
507 {
508 drm_mga_private_t *dev_priv = dev->dev_private;
509 drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
510 drm_mga_context_regs_t *ctx = &sarea_priv->context_state;
511 struct drm_clip_rect *pbox = sarea_priv->boxes;
512 int nbox = sarea_priv->nbox;
513 int i;
514 DMA_LOCALS;
515 DRM_DEBUG("\n");
516
517 BEGIN_DMA(1);
518
519 DMA_BLOCK(MGA_DMAPAD, 0x00000000,
520 MGA_DMAPAD, 0x00000000,
521 MGA_DWGSYNC, 0x00007100,
522 MGA_DWGSYNC, 0x00007000);
523
524 ADVANCE_DMA();
525
526 for (i = 0; i < nbox; i++) {
527 struct drm_clip_rect *box = &pbox[i];
528 u32 height = box->y2 - box->y1;
529
530 DRM_DEBUG(" from=%d,%d to=%d,%d\n",
531 box->x1, box->y1, box->x2, box->y2);
532
533 if (clear->flags & MGA_FRONT) {
534 BEGIN_DMA(2);
535
536 DMA_BLOCK(MGA_DMAPAD, 0x00000000,
537 MGA_PLNWT, clear->color_mask,
538 MGA_YDSTLEN, (box->y1 << 16) | height,
539 MGA_FXBNDRY, (box->x2 << 16) | box->x1);
540
541 DMA_BLOCK(MGA_DMAPAD, 0x00000000,
542 MGA_FCOL, clear->clear_color,
543 MGA_DSTORG, dev_priv->front_offset,
544 MGA_DWGCTL + MGA_EXEC, dev_priv->clear_cmd);
545
546 ADVANCE_DMA();
547 }
548
549 if (clear->flags & MGA_BACK) {
550 BEGIN_DMA(2);
551
552 DMA_BLOCK(MGA_DMAPAD, 0x00000000,
553 MGA_PLNWT, clear->color_mask,
554 MGA_YDSTLEN, (box->y1 << 16) | height,
555 MGA_FXBNDRY, (box->x2 << 16) | box->x1);
556
557 DMA_BLOCK(MGA_DMAPAD, 0x00000000,
558 MGA_FCOL, clear->clear_color,
559 MGA_DSTORG, dev_priv->back_offset,
560 MGA_DWGCTL + MGA_EXEC, dev_priv->clear_cmd);
561
562 ADVANCE_DMA();
563 }
564
565 if (clear->flags & MGA_DEPTH) {
566 BEGIN_DMA(2);
567
568 DMA_BLOCK(MGA_DMAPAD, 0x00000000,
569 MGA_PLNWT, clear->depth_mask,
570 MGA_YDSTLEN, (box->y1 << 16) | height,
571 MGA_FXBNDRY, (box->x2 << 16) | box->x1);
572
573 DMA_BLOCK(MGA_DMAPAD, 0x00000000,
574 MGA_FCOL, clear->clear_depth,
575 MGA_DSTORG, dev_priv->depth_offset,
576 MGA_DWGCTL + MGA_EXEC, dev_priv->clear_cmd);
577
578 ADVANCE_DMA();
579 }
580
581 }
582
583 BEGIN_DMA(1);
584
585 /* Force reset of DWGCTL */
586 DMA_BLOCK(MGA_DMAPAD, 0x00000000,
587 MGA_DMAPAD, 0x00000000,
588 MGA_PLNWT, ctx->plnwt,
589 MGA_DWGCTL, ctx->dwgctl);
590
591 ADVANCE_DMA();
592
593 FLUSH_DMA();
594 }
595
596 static void mga_dma_dispatch_swap(struct drm_device * dev)
597 {
598 drm_mga_private_t *dev_priv = dev->dev_private;
599 drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
600 drm_mga_context_regs_t *ctx = &sarea_priv->context_state;
601 struct drm_clip_rect *pbox = sarea_priv->boxes;
602 int nbox = sarea_priv->nbox;
603 int i;
604 DMA_LOCALS;
605 DRM_DEBUG("\n");
606
607 sarea_priv->last_frame.head = dev_priv->prim.tail;
608 sarea_priv->last_frame.wrap = dev_priv->prim.last_wrap;
609
610 BEGIN_DMA(4 + nbox);
611
612 DMA_BLOCK(MGA_DMAPAD, 0x00000000,
613 MGA_DMAPAD, 0x00000000,
614 MGA_DWGSYNC, 0x00007100,
615 MGA_DWGSYNC, 0x00007000);
616
617 DMA_BLOCK(MGA_DSTORG, dev_priv->front_offset,
618 MGA_MACCESS, dev_priv->maccess,
619 MGA_SRCORG, dev_priv->back_offset,
620 MGA_AR5, dev_priv->front_pitch);
621
622 DMA_BLOCK(MGA_DMAPAD, 0x00000000,
623 MGA_DMAPAD, 0x00000000,
624 MGA_PLNWT, 0xffffffff,
625 MGA_DWGCTL, MGA_DWGCTL_COPY);
626
627 for (i = 0; i < nbox; i++) {
628 struct drm_clip_rect *box = &pbox[i];
629 u32 height = box->y2 - box->y1;
630 u32 start = box->y1 * dev_priv->front_pitch;
631
632 DRM_DEBUG(" from=%d,%d to=%d,%d\n",
633 box->x1, box->y1, box->x2, box->y2);
634
635 DMA_BLOCK(MGA_AR0, start + box->x2 - 1,
636 MGA_AR3, start + box->x1,
637 MGA_FXBNDRY, ((box->x2 - 1) << 16) | box->x1,
638 MGA_YDSTLEN + MGA_EXEC, (box->y1 << 16) | height);
639 }
640
641 DMA_BLOCK(MGA_DMAPAD, 0x00000000,
642 MGA_PLNWT, ctx->plnwt,
643 MGA_SRCORG, dev_priv->front_offset,
644 MGA_DWGCTL, ctx->dwgctl);
645
646 ADVANCE_DMA();
647
648 FLUSH_DMA();
649
650 DRM_DEBUG("... done.\n");
651 }
652
653 static void mga_dma_dispatch_vertex(struct drm_device * dev, struct drm_buf * buf)
654 {
655 drm_mga_private_t *dev_priv = dev->dev_private;
656 drm_mga_buf_priv_t *buf_priv = buf->dev_private;
657 drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
658 u32 address = (u32) buf->bus_address;
659 u32 length = (u32) buf->used;
660 int i = 0;
661 DMA_LOCALS;
662 DRM_DEBUG("buf=%d used=%d\n", buf->idx, buf->used);
663
664 if (buf->used) {
665 buf_priv->dispatched = 1;
666
667 MGA_EMIT_STATE(dev_priv, sarea_priv->dirty);
668
669 do {
670 if (i < sarea_priv->nbox) {
671 mga_emit_clip_rect(dev_priv,
672 &sarea_priv->boxes[i]);
673 }
674
675 BEGIN_DMA(1);
676
677 DMA_BLOCK(MGA_DMAPAD, 0x00000000,
678 MGA_DMAPAD, 0x00000000,
679 MGA_SECADDRESS, (address |
680 MGA_DMA_VERTEX),
681 MGA_SECEND, ((address + length) |
682 dev_priv->dma_access));
683
684 ADVANCE_DMA();
685 } while (++i < sarea_priv->nbox);
686 }
687
688 if (buf_priv->discard) {
689 AGE_BUFFER(buf_priv);
690 buf->pending = 0;
691 buf->used = 0;
692 buf_priv->dispatched = 0;
693
694 mga_freelist_put(dev, buf);
695 }
696
697 FLUSH_DMA();
698 }
699
700 static void mga_dma_dispatch_indices(struct drm_device * dev, struct drm_buf * buf,
701 unsigned int start, unsigned int end)
702 {
703 drm_mga_private_t *dev_priv = dev->dev_private;
704 drm_mga_buf_priv_t *buf_priv = buf->dev_private;
705 drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
706 u32 address = (u32) buf->bus_address;
707 int i = 0;
708 DMA_LOCALS;
709 DRM_DEBUG("buf=%d start=%d end=%d\n", buf->idx, start, end);
710
711 if (start != end) {
712 buf_priv->dispatched = 1;
713
714 MGA_EMIT_STATE(dev_priv, sarea_priv->dirty);
715
716 do {
717 if (i < sarea_priv->nbox) {
718 mga_emit_clip_rect(dev_priv,
719 &sarea_priv->boxes[i]);
720 }
721
722 BEGIN_DMA(1);
723
724 DMA_BLOCK(MGA_DMAPAD, 0x00000000,
725 MGA_DMAPAD, 0x00000000,
726 MGA_SETUPADDRESS, address + start,
727 MGA_SETUPEND, ((address + end) |
728 dev_priv->dma_access));
729
730 ADVANCE_DMA();
731 } while (++i < sarea_priv->nbox);
732 }
733
734 if (buf_priv->discard) {
735 AGE_BUFFER(buf_priv);
736 buf->pending = 0;
737 buf->used = 0;
738 buf_priv->dispatched = 0;
739
740 mga_freelist_put(dev, buf);
741 }
742
743 FLUSH_DMA();
744 }
745
746 /* This copies a 64 byte aligned agp region to the frambuffer with a
747 * standard blit, the ioctl needs to do checking.
748 */
749 static void mga_dma_dispatch_iload(struct drm_device * dev, struct drm_buf * buf,
750 unsigned int dstorg, unsigned int length)
751 {
752 drm_mga_private_t *dev_priv = dev->dev_private;
753 drm_mga_buf_priv_t *buf_priv = buf->dev_private;
754 drm_mga_context_regs_t *ctx = &dev_priv->sarea_priv->context_state;
755 u32 srcorg = buf->bus_address | dev_priv->dma_access | MGA_SRCMAP_SYSMEM;
756 u32 y2;
757 DMA_LOCALS;
758 DRM_DEBUG("buf=%d used=%d\n", buf->idx, buf->used);
759
760 y2 = length / 64;
761
762 BEGIN_DMA(5);
763
764 DMA_BLOCK(MGA_DMAPAD, 0x00000000,
765 MGA_DMAPAD, 0x00000000,
766 MGA_DWGSYNC, 0x00007100,
767 MGA_DWGSYNC, 0x00007000);
768
769 DMA_BLOCK(MGA_DSTORG, dstorg,
770 MGA_MACCESS, 0x00000000,
771 MGA_SRCORG, srcorg,
772 MGA_AR5, 64);
773
774 DMA_BLOCK(MGA_PITCH, 64,
775 MGA_PLNWT, 0xffffffff,
776 MGA_DMAPAD, 0x00000000,
777 MGA_DWGCTL, MGA_DWGCTL_COPY);
778
779 DMA_BLOCK(MGA_AR0, 63,
780 MGA_AR3, 0,
781 MGA_FXBNDRY, (63 << 16) | 0,
782 MGA_YDSTLEN + MGA_EXEC, y2);
783
784 DMA_BLOCK(MGA_PLNWT, ctx->plnwt,
785 MGA_SRCORG, dev_priv->front_offset,
786 MGA_PITCH, dev_priv->front_pitch,
787 MGA_DWGSYNC, 0x00007000);
788
789 ADVANCE_DMA();
790
791 AGE_BUFFER(buf_priv);
792
793 buf->pending = 0;
794 buf->used = 0;
795 buf_priv->dispatched = 0;
796
797 mga_freelist_put(dev, buf);
798
799 FLUSH_DMA();
800 }
801
802 static void mga_dma_dispatch_blit(struct drm_device * dev, drm_mga_blit_t * blit)
803 {
804 drm_mga_private_t *dev_priv = dev->dev_private;
805 drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
806 drm_mga_context_regs_t *ctx = &sarea_priv->context_state;
807 struct drm_clip_rect *pbox = sarea_priv->boxes;
808 int nbox = sarea_priv->nbox;
809 u32 scandir = 0, i;
810 DMA_LOCALS;
811 DRM_DEBUG("\n");
812
813 BEGIN_DMA(4 + nbox);
814
815 DMA_BLOCK(MGA_DMAPAD, 0x00000000,
816 MGA_DMAPAD, 0x00000000,
817 MGA_DWGSYNC, 0x00007100,
818 MGA_DWGSYNC, 0x00007000);
819
820 DMA_BLOCK(MGA_DWGCTL, MGA_DWGCTL_COPY,
821 MGA_PLNWT, blit->planemask,
822 MGA_SRCORG, blit->srcorg,
823 MGA_DSTORG, blit->dstorg);
824
825 DMA_BLOCK(MGA_SGN, scandir,
826 MGA_MACCESS, dev_priv->maccess,
827 MGA_AR5, blit->ydir * blit->src_pitch,
828 MGA_PITCH, blit->dst_pitch);
829
830 for (i = 0; i < nbox; i++) {
831 int srcx = pbox[i].x1 + blit->delta_sx;
832 int srcy = pbox[i].y1 + blit->delta_sy;
833 int dstx = pbox[i].x1 + blit->delta_dx;
834 int dsty = pbox[i].y1 + blit->delta_dy;
835 int h = pbox[i].y2 - pbox[i].y1;
836 int w = pbox[i].x2 - pbox[i].x1 - 1;
837 int start;
838
839 if (blit->ydir == -1) {
840 srcy = blit->height - srcy - 1;
841 }
842
843 start = srcy * blit->src_pitch + srcx;
844
845 DMA_BLOCK(MGA_AR0, start + w,
846 MGA_AR3, start,
847 MGA_FXBNDRY, ((dstx + w) << 16) | (dstx & 0xffff),
848 MGA_YDSTLEN + MGA_EXEC, (dsty << 16) | h);
849 }
850
851 /* Do something to flush AGP?
852 */
853
854 /* Force reset of DWGCTL */
855 DMA_BLOCK(MGA_DMAPAD, 0x00000000,
856 MGA_PLNWT, ctx->plnwt,
857 MGA_PITCH, dev_priv->front_pitch,
858 MGA_DWGCTL, ctx->dwgctl);
859
860 ADVANCE_DMA();
861 }
862
863 /* ================================================================
864 *
865 */
866
867 static int mga_dma_clear(struct drm_device *dev, void *data, struct drm_file *file_priv)
868 {
869 drm_mga_private_t *dev_priv = dev->dev_private;
870 drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
871 drm_mga_clear_t *clear = data;
872
873 LOCK_TEST_WITH_RETURN(dev, file_priv);
874
875 if (sarea_priv->nbox > MGA_NR_SAREA_CLIPRECTS)
876 sarea_priv->nbox = MGA_NR_SAREA_CLIPRECTS;
877
878 WRAP_TEST_WITH_RETURN(dev_priv);
879
880 mga_dma_dispatch_clear(dev, clear);
881
882 /* Make sure we restore the 3D state next time.
883 */
884 dev_priv->sarea_priv->dirty |= MGA_UPLOAD_CONTEXT;
885
886 return 0;
887 }
888
889 static int mga_dma_swap(struct drm_device *dev, void *data, struct drm_file *file_priv)
890 {
891 drm_mga_private_t *dev_priv = dev->dev_private;
892 drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
893
894 LOCK_TEST_WITH_RETURN(dev, file_priv);
895
896 if (sarea_priv->nbox > MGA_NR_SAREA_CLIPRECTS)
897 sarea_priv->nbox = MGA_NR_SAREA_CLIPRECTS;
898
899 WRAP_TEST_WITH_RETURN(dev_priv);
900
901 mga_dma_dispatch_swap(dev);
902
903 /* Make sure we restore the 3D state next time.
904 */
905 dev_priv->sarea_priv->dirty |= MGA_UPLOAD_CONTEXT;
906
907 return 0;
908 }
909
910 static int mga_dma_vertex(struct drm_device *dev, void *data, struct drm_file *file_priv)
911 {
912 drm_mga_private_t *dev_priv = dev->dev_private;
913 struct drm_device_dma *dma = dev->dma;
914 struct drm_buf *buf;
915 drm_mga_buf_priv_t *buf_priv;
916 drm_mga_vertex_t *vertex = data;
917
918 LOCK_TEST_WITH_RETURN(dev, file_priv);
919
920 if (vertex->idx < 0 || vertex->idx > dma->buf_count)
921 return -EINVAL;
922 buf = dma->buflist[vertex->idx];
923 buf_priv = buf->dev_private;
924
925 buf->used = vertex->used;
926 buf_priv->discard = vertex->discard;
927
928 if (!mga_verify_state(dev_priv)) {
929 if (vertex->discard) {
930 if (buf_priv->dispatched == 1)
931 AGE_BUFFER(buf_priv);
932 buf_priv->dispatched = 0;
933 mga_freelist_put(dev, buf);
934 }
935 return -EINVAL;
936 }
937
938 WRAP_TEST_WITH_RETURN(dev_priv);
939
940 mga_dma_dispatch_vertex(dev, buf);
941
942 return 0;
943 }
944
945 static int mga_dma_indices(struct drm_device *dev, void *data, struct drm_file *file_priv)
946 {
947 drm_mga_private_t *dev_priv = dev->dev_private;
948 struct drm_device_dma *dma = dev->dma;
949 struct drm_buf *buf;
950 drm_mga_buf_priv_t *buf_priv;
951 drm_mga_indices_t *indices = data;
952
953 LOCK_TEST_WITH_RETURN(dev, file_priv);
954
955 if (indices->idx < 0 || indices->idx > dma->buf_count)
956 return -EINVAL;
957
958 buf = dma->buflist[indices->idx];
959 buf_priv = buf->dev_private;
960
961 buf_priv->discard = indices->discard;
962
963 if (!mga_verify_state(dev_priv)) {
964 if (indices->discard) {
965 if (buf_priv->dispatched == 1)
966 AGE_BUFFER(buf_priv);
967 buf_priv->dispatched = 0;
968 mga_freelist_put(dev, buf);
969 }
970 return -EINVAL;
971 }
972
973 WRAP_TEST_WITH_RETURN(dev_priv);
974
975 mga_dma_dispatch_indices(dev, buf, indices->start, indices->end);
976
977 return 0;
978 }
979
980 static int mga_dma_iload(struct drm_device *dev, void *data, struct drm_file *file_priv)
981 {
982 struct drm_device_dma *dma = dev->dma;
983 drm_mga_private_t *dev_priv = dev->dev_private;
984 struct drm_buf *buf;
985 drm_mga_buf_priv_t *buf_priv;
986 drm_mga_iload_t *iload = data;
987 DRM_DEBUG("\n");
988
989 LOCK_TEST_WITH_RETURN(dev, file_priv);
990
991 #if 0
992 if (mga_do_wait_for_idle(dev_priv) < 0) {
993 if (MGA_DMA_DEBUG)
994 DRM_INFO("-EBUSY\n");
995 return -EBUSY;
996 }
997 #endif
998 if (iload->idx < 0 || iload->idx > dma->buf_count)
999 return -EINVAL;
1000
1001 buf = dma->buflist[iload->idx];
1002 buf_priv = buf->dev_private;
1003
1004 if (mga_verify_iload(dev_priv, iload->dstorg, iload->length)) {
1005 mga_freelist_put(dev, buf);
1006 return -EINVAL;
1007 }
1008
1009 WRAP_TEST_WITH_RETURN(dev_priv);
1010
1011 mga_dma_dispatch_iload(dev, buf, iload->dstorg, iload->length);
1012
1013 /* Make sure we restore the 3D state next time.
1014 */
1015 dev_priv->sarea_priv->dirty |= MGA_UPLOAD_CONTEXT;
1016
1017 return 0;
1018 }
1019
1020 static int mga_dma_blit(struct drm_device *dev, void *data, struct drm_file *file_priv)
1021 {
1022 drm_mga_private_t *dev_priv = dev->dev_private;
1023 drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
1024 drm_mga_blit_t *blit = data;
1025 DRM_DEBUG("\n");
1026
1027 LOCK_TEST_WITH_RETURN(dev, file_priv);
1028
1029 if (sarea_priv->nbox > MGA_NR_SAREA_CLIPRECTS)
1030 sarea_priv->nbox = MGA_NR_SAREA_CLIPRECTS;
1031
1032 if (mga_verify_blit(dev_priv, blit->srcorg, blit->dstorg))
1033 return -EINVAL;
1034
1035 WRAP_TEST_WITH_RETURN(dev_priv);
1036
1037 mga_dma_dispatch_blit(dev, blit);
1038
1039 /* Make sure we restore the 3D state next time.
1040 */
1041 dev_priv->sarea_priv->dirty |= MGA_UPLOAD_CONTEXT;
1042
1043 return 0;
1044 }
1045
1046 static int mga_getparam(struct drm_device *dev, void *data, struct drm_file *file_priv)
1047 {
1048 drm_mga_private_t *dev_priv = dev->dev_private;
1049 drm_mga_getparam_t *param = data;
1050 int value;
1051
1052 if (!dev_priv) {
1053 DRM_ERROR("called with no initialization\n");
1054 return -EINVAL;
1055 }
1056
1057 DRM_DEBUG("pid=%d\n", DRM_CURRENTPID);
1058
1059 switch (param->param) {
1060 case MGA_PARAM_IRQ_NR:
1061 value = dev->irq;
1062 break;
1063 case MGA_PARAM_CARD_TYPE:
1064 value = dev_priv->chipset;
1065 break;
1066 default:
1067 return -EINVAL;
1068 }
1069
1070 if (DRM_COPY_TO_USER(param->value, &value, sizeof(int))) {
1071 DRM_ERROR("copy_to_user\n");
1072 return -EFAULT;
1073 }
1074
1075 return 0;
1076 }
1077
1078 static int mga_set_fence(struct drm_device *dev, void *data, struct drm_file *file_priv)
1079 {
1080 drm_mga_private_t *dev_priv = dev->dev_private;
1081 u32 *fence = data;
1082 DMA_LOCALS;
1083
1084 if (!dev_priv) {
1085 DRM_ERROR("called with no initialization\n");
1086 return -EINVAL;
1087 }
1088
1089 DRM_DEBUG("pid=%d\n", DRM_CURRENTPID);
1090
1091 /* I would normal do this assignment in the declaration of fence,
1092 * but dev_priv may be NULL.
1093 */
1094
1095 *fence = dev_priv->next_fence_to_post;
1096 dev_priv->next_fence_to_post++;
1097
1098 BEGIN_DMA(1);
1099 DMA_BLOCK(MGA_DMAPAD, 0x00000000,
1100 MGA_DMAPAD, 0x00000000,
1101 MGA_DMAPAD, 0x00000000,
1102 MGA_SOFTRAP, 0x00000000);
1103 ADVANCE_DMA();
1104
1105 return 0;
1106 }
1107
1108 static int mga_wait_fence(struct drm_device *dev, void *data, struct drm_file *file_priv)
1109 {
1110 drm_mga_private_t *dev_priv = dev->dev_private;
1111 u32 *fence = data;
1112
1113 if (!dev_priv) {
1114 DRM_ERROR("called with no initialization\n");
1115 return -EINVAL;
1116 }
1117
1118 DRM_DEBUG("pid=%d\n", DRM_CURRENTPID);
1119
1120 mga_driver_fence_wait(dev, fence);
1121
1122 return 0;
1123 }
1124
1125 struct drm_ioctl_desc mga_ioctls[] = {
1126 DRM_IOCTL_DEF(DRM_MGA_INIT, mga_dma_init, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
1127 DRM_IOCTL_DEF(DRM_MGA_FLUSH, mga_dma_flush, DRM_AUTH),
1128 DRM_IOCTL_DEF(DRM_MGA_RESET, mga_dma_reset, DRM_AUTH),
1129 DRM_IOCTL_DEF(DRM_MGA_SWAP, mga_dma_swap, DRM_AUTH),
1130 DRM_IOCTL_DEF(DRM_MGA_CLEAR, mga_dma_clear, DRM_AUTH),
1131 DRM_IOCTL_DEF(DRM_MGA_VERTEX, mga_dma_vertex, DRM_AUTH),
1132 DRM_IOCTL_DEF(DRM_MGA_INDICES, mga_dma_indices, DRM_AUTH),
1133 DRM_IOCTL_DEF(DRM_MGA_ILOAD, mga_dma_iload, DRM_AUTH),
1134 DRM_IOCTL_DEF(DRM_MGA_BLIT, mga_dma_blit, DRM_AUTH),
1135 DRM_IOCTL_DEF(DRM_MGA_GETPARAM, mga_getparam, DRM_AUTH),
1136 DRM_IOCTL_DEF(DRM_MGA_SET_FENCE, mga_set_fence, DRM_AUTH),
1137 DRM_IOCTL_DEF(DRM_MGA_WAIT_FENCE, mga_wait_fence, DRM_AUTH),
1138 DRM_IOCTL_DEF(DRM_MGA_DMA_BOOTSTRAP, mga_dma_bootstrap, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
1139
1140 };
1141
1142 int mga_max_ioctl = DRM_ARRAY_SIZE(mga_ioctls);
Cache object: 17c1c1040dcc54434d97eaac387a96dd
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