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drm: lindent the drm directory.
[deliverable/linux.git] / drivers / char / drm / mga_state.c
CommitLineData
1da177e4
LT		 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 * 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 * Jeff Hartmann <jhartmann@valinux.com>
29 * Keith Whitwell <keith@tungstengraphics.com>
30 *
31 * Rewritten by:
32 * Gareth Hughes <gareth@valinux.com>
33 */
34
35#include "drmP.h"
36#include "drm.h"
37#include "mga_drm.h"
38#include "mga_drv.h"
39
40/* ================================================================
41 * DMA hardware state programming functions
42 */
43
b5e89ed5
DA		 44static void mga_emit_clip_rect(drm_mga_private_t * dev_priv,
45 drm_clip_rect_t * box)
1da177e4
LT		 46{
47 drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
48 drm_mga_context_regs_t *ctx = &sarea_priv->context_state;
49 unsigned int pitch = dev_priv->front_pitch;
50 DMA_LOCALS;
51
b5e89ed5 52 BEGIN_DMA(2);
1da177e4
LT		 53
54 /* Force reset of DWGCTL on G400 (eliminates clip disable bit).
55 */
6795c985
DA		 56 if (dev_priv->chipset == MGA_CARD_TYPE_G400) {
57 DMA_BLOCK(MGA_DWGCTL, ctx->dwgctl,
58 MGA_LEN + MGA_EXEC, 0x80000000,
59 MGA_DWGCTL, ctx->dwgctl,
60 MGA_LEN + MGA_EXEC, 0x80000000);
1da177e4 61 }
6795c985
DA		 62 DMA_BLOCK(MGA_DMAPAD, 0x00000000,
63 MGA_CXBNDRY, ((box->x2 - 1) << 16) | box->x1,
b5e89ed5 64 MGA_YTOP, box->y1 * pitch, MGA_YBOT, (box->y2 - 1) * pitch);
1da177e4
LT		 65
66 ADVANCE_DMA();
67}
68
b5e89ed5 69static __inline__ void mga_g200_emit_context(drm_mga_private_t * dev_priv)
1da177e4
LT		 70{
71 drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
72 drm_mga_context_regs_t *ctx = &sarea_priv->context_state;
73 DMA_LOCALS;
74
b5e89ed5 75 BEGIN_DMA(3);
1da177e4 76
b5e89ed5
DA		 77 DMA_BLOCK(MGA_DSTORG, ctx->dstorg,
78 MGA_MACCESS, ctx->maccess,
79 MGA_PLNWT, ctx->plnwt, MGA_DWGCTL, ctx->dwgctl);
1da177e4 80
b5e89ed5
DA		 81 DMA_BLOCK(MGA_ALPHACTRL, ctx->alphactrl,
82 MGA_FOGCOL, ctx->fogcolor,
83 MGA_WFLAG, ctx->wflag, MGA_ZORG, dev_priv->depth_offset);
1da177e4 84
b5e89ed5
DA		 85 DMA_BLOCK(MGA_FCOL, ctx->fcol,
86 MGA_DMAPAD, 0x00000000,
87 MGA_DMAPAD, 0x00000000, MGA_DMAPAD, 0x00000000);
1da177e4
LT		 88
89 ADVANCE_DMA();
90}
91
b5e89ed5 92static __inline__ void mga_g400_emit_context(drm_mga_private_t * dev_priv)
1da177e4
LT		 93{
94 drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
95 drm_mga_context_regs_t *ctx = &sarea_priv->context_state;
96 DMA_LOCALS;
97
b5e89ed5 98 BEGIN_DMA(4);
1da177e4 99
b5e89ed5
DA		 100 DMA_BLOCK(MGA_DSTORG, ctx->dstorg,
101 MGA_MACCESS, ctx->maccess,
102 MGA_PLNWT, ctx->plnwt, MGA_DWGCTL, ctx->dwgctl);
1da177e4 103
b5e89ed5
DA		 104 DMA_BLOCK(MGA_ALPHACTRL, ctx->alphactrl,
105 MGA_FOGCOL, ctx->fogcolor,
106 MGA_WFLAG, ctx->wflag, MGA_ZORG, dev_priv->depth_offset);
1da177e4 107
b5e89ed5
DA		 108 DMA_BLOCK(MGA_WFLAG1, ctx->wflag,
109 MGA_TDUALSTAGE0, ctx->tdualstage0,
110 MGA_TDUALSTAGE1, ctx->tdualstage1, MGA_FCOL, ctx->fcol);
1da177e4 111
b5e89ed5
DA		 112 DMA_BLOCK(MGA_STENCIL, ctx->stencil,
113 MGA_STENCILCTL, ctx->stencilctl,
114 MGA_DMAPAD, 0x00000000, MGA_DMAPAD, 0x00000000);
1da177e4
LT		 115
116 ADVANCE_DMA();
117}
118
b5e89ed5 119static __inline__ void mga_g200_emit_tex0(drm_mga_private_t * dev_priv)
1da177e4
LT		 120{
121 drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
122 drm_mga_texture_regs_t *tex = &sarea_priv->tex_state[0];
123 DMA_LOCALS;
124
b5e89ed5 125 BEGIN_DMA(4);
1da177e4 126
b5e89ed5
DA		 127 DMA_BLOCK(MGA_TEXCTL2, tex->texctl2,
128 MGA_TEXCTL, tex->texctl,
129 MGA_TEXFILTER, tex->texfilter,
130 MGA_TEXBORDERCOL, tex->texbordercol);
1da177e4 131
b5e89ed5
DA		 132 DMA_BLOCK(MGA_TEXORG, tex->texorg,
133 MGA_TEXORG1, tex->texorg1,
134 MGA_TEXORG2, tex->texorg2, MGA_TEXORG3, tex->texorg3);
1da177e4 135
b5e89ed5
DA		 136 DMA_BLOCK(MGA_TEXORG4, tex->texorg4,
137 MGA_TEXWIDTH, tex->texwidth,
138 MGA_TEXHEIGHT, tex->texheight, MGA_WR24, tex->texwidth);
1da177e4 139
b5e89ed5
DA		 140 DMA_BLOCK(MGA_WR34, tex->texheight,
141 MGA_TEXTRANS, 0x0000ffff,
142 MGA_TEXTRANSHIGH, 0x0000ffff, MGA_DMAPAD, 0x00000000);
1da177e4
LT		 143
144 ADVANCE_DMA();
145}
146
b5e89ed5 147static __inline__ void mga_g400_emit_tex0(drm_mga_private_t * dev_priv)
1da177e4
LT		 148{
149 drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
150 drm_mga_texture_regs_t *tex = &sarea_priv->tex_state[0];
151 DMA_LOCALS;
152
153/* printk("mga_g400_emit_tex0 %x %x %x\n", tex->texorg, */
154/* tex->texctl, tex->texctl2); */
155
b5e89ed5 156 BEGIN_DMA(6);
1da177e4 157
b5e89ed5
DA		 158 DMA_BLOCK(MGA_TEXCTL2, tex->texctl2 | MGA_G400_TC2_MAGIC,
159 MGA_TEXCTL, tex->texctl,
160 MGA_TEXFILTER, tex->texfilter,
161 MGA_TEXBORDERCOL, tex->texbordercol);
1da177e4 162
b5e89ed5
DA		 163 DMA_BLOCK(MGA_TEXORG, tex->texorg,
164 MGA_TEXORG1, tex->texorg1,
165 MGA_TEXORG2, tex->texorg2, MGA_TEXORG3, tex->texorg3);
1da177e4 166
b5e89ed5
DA		 167 DMA_BLOCK(MGA_TEXORG4, tex->texorg4,
168 MGA_TEXWIDTH, tex->texwidth,
169 MGA_TEXHEIGHT, tex->texheight, MGA_WR49, 0x00000000);
1da177e4 170
b5e89ed5
DA		 171 DMA_BLOCK(MGA_WR57, 0x00000000,
172 MGA_WR53, 0x00000000,
173 MGA_WR61, 0x00000000, MGA_WR52, MGA_G400_WR_MAGIC);
1da177e4 174
b5e89ed5
DA		 175 DMA_BLOCK(MGA_WR60, MGA_G400_WR_MAGIC,
176 MGA_WR54, tex->texwidth | MGA_G400_WR_MAGIC,
177 MGA_WR62, tex->texheight | MGA_G400_WR_MAGIC,
178 MGA_DMAPAD, 0x00000000);
1da177e4 179
b5e89ed5
DA		 180 DMA_BLOCK(MGA_DMAPAD, 0x00000000,
181 MGA_DMAPAD, 0x00000000,
182 MGA_TEXTRANS, 0x0000ffff, MGA_TEXTRANSHIGH, 0x0000ffff);
1da177e4
LT		 183
184 ADVANCE_DMA();
185}
186
b5e89ed5 187static __inline__ void mga_g400_emit_tex1(drm_mga_private_t * dev_priv)
1da177e4
LT		 188{
189 drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
190 drm_mga_texture_regs_t *tex = &sarea_priv->tex_state[1];
191 DMA_LOCALS;
192
193/* printk("mga_g400_emit_tex1 %x %x %x\n", tex->texorg, */
194/* tex->texctl, tex->texctl2); */
195
b5e89ed5 196 BEGIN_DMA(5);
1da177e4 197
b5e89ed5
DA		 198 DMA_BLOCK(MGA_TEXCTL2, (tex->texctl2 |
199 MGA_MAP1_ENABLE |
200 MGA_G400_TC2_MAGIC),
201 MGA_TEXCTL, tex->texctl,
202 MGA_TEXFILTER, tex->texfilter,
203 MGA_TEXBORDERCOL, tex->texbordercol);
1da177e4 204
b5e89ed5
DA		 205 DMA_BLOCK(MGA_TEXORG, tex->texorg,
206 MGA_TEXORG1, tex->texorg1,
207 MGA_TEXORG2, tex->texorg2, MGA_TEXORG3, tex->texorg3);
1da177e4 208
b5e89ed5
DA		 209 DMA_BLOCK(MGA_TEXORG4, tex->texorg4,
210 MGA_TEXWIDTH, tex->texwidth,
211 MGA_TEXHEIGHT, tex->texheight, MGA_WR49, 0x00000000);
1da177e4 212
b5e89ed5
DA		 213 DMA_BLOCK(MGA_WR57, 0x00000000,
214 MGA_WR53, 0x00000000,
215 MGA_WR61, 0x00000000,
216 MGA_WR52, tex->texwidth | MGA_G400_WR_MAGIC);
1da177e4 217
b5e89ed5
DA		 218 DMA_BLOCK(MGA_WR60, tex->texheight | MGA_G400_WR_MAGIC,
219 MGA_TEXTRANS, 0x0000ffff,
220 MGA_TEXTRANSHIGH, 0x0000ffff,
221 MGA_TEXCTL2, tex->texctl2 | MGA_G400_TC2_MAGIC);
1da177e4
LT		 222
223 ADVANCE_DMA();
224}
225
b5e89ed5 226static __inline__ void mga_g200_emit_pipe(drm_mga_private_t * dev_priv)
1da177e4
LT		 227{
228 drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
229 unsigned int pipe = sarea_priv->warp_pipe;
230 DMA_LOCALS;
231
b5e89ed5 232 BEGIN_DMA(3);
1da177e4 233
b5e89ed5
DA		 234 DMA_BLOCK(MGA_WIADDR, MGA_WMODE_SUSPEND,
235 MGA_WVRTXSZ, 0x00000007,
236 MGA_WFLAG, 0x00000000, MGA_WR24, 0x00000000);
1da177e4 237
b5e89ed5
DA		 238 DMA_BLOCK(MGA_WR25, 0x00000100,
239 MGA_WR34, 0x00000000,
240 MGA_WR42, 0x0000ffff, MGA_WR60, 0x0000ffff);
1da177e4
LT		 241
242 /* Padding required to to hardware bug.
243 */
6795c985
DA		 244 DMA_BLOCK(MGA_DMAPAD, 0xffffffff,
245 MGA_DMAPAD, 0xffffffff,
246 MGA_DMAPAD, 0xffffffff,
247 MGA_WIADDR, (dev_priv->warp_pipe_phys[pipe] |
248 MGA_WMODE_START | dev_priv->wagp_enable));
1da177e4
LT		 249
250 ADVANCE_DMA();
251}
252
b5e89ed5 253static __inline__ void mga_g400_emit_pipe(drm_mga_private_t * dev_priv)
1da177e4
LT		 254{
255 drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
256 unsigned int pipe = sarea_priv->warp_pipe;
257 DMA_LOCALS;
258
259/* printk("mga_g400_emit_pipe %x\n", pipe); */
260
b5e89ed5 261 BEGIN_DMA(10);
1da177e4 262
b5e89ed5
DA		 263 DMA_BLOCK(MGA_WIADDR2, MGA_WMODE_SUSPEND,
264 MGA_DMAPAD, 0x00000000,
265 MGA_DMAPAD, 0x00000000, MGA_DMAPAD, 0x00000000);
1da177e4 266
b5e89ed5
DA		 267 if (pipe & MGA_T2) {
268 DMA_BLOCK(MGA_WVRTXSZ, 0x00001e09,
269 MGA_DMAPAD, 0x00000000,
270 MGA_DMAPAD, 0x00000000, MGA_DMAPAD, 0x00000000);
1da177e4 271
b5e89ed5
DA		 272 DMA_BLOCK(MGA_WACCEPTSEQ, 0x00000000,
273 MGA_WACCEPTSEQ, 0x00000000,
274 MGA_WACCEPTSEQ, 0x00000000,
275 MGA_WACCEPTSEQ, 0x1e000000);
1da177e4 276 } else {
b5e89ed5 277 if (dev_priv->warp_pipe & MGA_T2) {
1da177e4 278 /* Flush the WARP pipe */
b5e89ed5
DA		 279 DMA_BLOCK(MGA_YDST, 0x00000000,
280 MGA_FXLEFT, 0x00000000,
281 MGA_FXRIGHT, 0x00000001,
282 MGA_DWGCTL, MGA_DWGCTL_FLUSH);
283
284 DMA_BLOCK(MGA_LEN + MGA_EXEC, 0x00000001,
285 MGA_DWGSYNC, 0x00007000,
286 MGA_TEXCTL2, MGA_G400_TC2_MAGIC,
287 MGA_LEN + MGA_EXEC, 0x00000000);
288
289 DMA_BLOCK(MGA_TEXCTL2, (MGA_DUALTEX |
290 MGA_G400_TC2_MAGIC),
291 MGA_LEN + MGA_EXEC, 0x00000000,
292 MGA_TEXCTL2, MGA_G400_TC2_MAGIC,
293 MGA_DMAPAD, 0x00000000);
1da177e4
LT		 294 }
295
b5e89ed5
DA		 296 DMA_BLOCK(MGA_WVRTXSZ, 0x00001807,
297 MGA_DMAPAD, 0x00000000,
298 MGA_DMAPAD, 0x00000000, MGA_DMAPAD, 0x00000000);
1da177e4 299
b5e89ed5
DA		 300 DMA_BLOCK(MGA_WACCEPTSEQ, 0x00000000,
301 MGA_WACCEPTSEQ, 0x00000000,
302 MGA_WACCEPTSEQ, 0x00000000,
303 MGA_WACCEPTSEQ, 0x18000000);
1da177e4
LT		 304 }
305
b5e89ed5
DA		 306 DMA_BLOCK(MGA_WFLAG, 0x00000000,
307 MGA_WFLAG1, 0x00000000,
308 MGA_WR56, MGA_G400_WR56_MAGIC, MGA_DMAPAD, 0x00000000);
1da177e4 309
b5e89ed5
DA		 310 DMA_BLOCK(MGA_WR49, 0x00000000, /* tex0 */
311 MGA_WR57, 0x00000000, /* tex0 */
312 MGA_WR53, 0x00000000, /* tex1 */
313 MGA_WR61, 0x00000000); /* tex1 */
1da177e4 314
b5e89ed5
DA		 315 DMA_BLOCK(MGA_WR54, MGA_G400_WR_MAGIC, /* tex0 width */
316 MGA_WR62, MGA_G400_WR_MAGIC, /* tex0 height */
317 MGA_WR52, MGA_G400_WR_MAGIC, /* tex1 width */
318 MGA_WR60, MGA_G400_WR_MAGIC); /* tex1 height */
1da177e4
LT		 319
320 /* Padding required to to hardware bug */
6795c985
DA		 321 DMA_BLOCK(MGA_DMAPAD, 0xffffffff,
322 MGA_DMAPAD, 0xffffffff,
323 MGA_DMAPAD, 0xffffffff,
324 MGA_WIADDR2, (dev_priv->warp_pipe_phys[pipe] |
325 MGA_WMODE_START | dev_priv->wagp_enable));
1da177e4
LT		 326
327 ADVANCE_DMA();
328}
329
b5e89ed5 330static void mga_g200_emit_state(drm_mga_private_t * dev_priv)
1da177e4
LT		 331{
332 drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
333 unsigned int dirty = sarea_priv->dirty;
334
b5e89ed5
DA		 335 if (sarea_priv->warp_pipe != dev_priv->warp_pipe) {
336 mga_g200_emit_pipe(dev_priv);
1da177e4
LT		 337 dev_priv->warp_pipe = sarea_priv->warp_pipe;
338 }
339
b5e89ed5
DA		 340 if (dirty & MGA_UPLOAD_CONTEXT) {
341 mga_g200_emit_context(dev_priv);
1da177e4
LT		 342 sarea_priv->dirty &= ~MGA_UPLOAD_CONTEXT;
343 }
344
b5e89ed5
DA		 345 if (dirty & MGA_UPLOAD_TEX0) {
346 mga_g200_emit_tex0(dev_priv);
1da177e4
LT		 347 sarea_priv->dirty &= ~MGA_UPLOAD_TEX0;
348 }
349}
350
b5e89ed5 351static void mga_g400_emit_state(drm_mga_private_t * dev_priv)
1da177e4
LT		 352{
353 drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
354 unsigned int dirty = sarea_priv->dirty;
355 int multitex = sarea_priv->warp_pipe & MGA_T2;
356
b5e89ed5
DA		 357 if (sarea_priv->warp_pipe != dev_priv->warp_pipe) {
358 mga_g400_emit_pipe(dev_priv);
1da177e4
LT		 359 dev_priv->warp_pipe = sarea_priv->warp_pipe;
360 }
361
b5e89ed5
DA		 362 if (dirty & MGA_UPLOAD_CONTEXT) {
363 mga_g400_emit_context(dev_priv);
1da177e4
LT		 364 sarea_priv->dirty &= ~MGA_UPLOAD_CONTEXT;
365 }
366
b5e89ed5
DA		 367 if (dirty & MGA_UPLOAD_TEX0) {
368 mga_g400_emit_tex0(dev_priv);
1da177e4
LT		 369 sarea_priv->dirty &= ~MGA_UPLOAD_TEX0;
370 }
371
b5e89ed5
DA		 372 if ((dirty & MGA_UPLOAD_TEX1) && multitex) {
373 mga_g400_emit_tex1(dev_priv);
1da177e4
LT		 374 sarea_priv->dirty &= ~MGA_UPLOAD_TEX1;
375 }
376}
377
1da177e4
LT		 378/* ================================================================
379 * SAREA state verification
380 */
381
382/* Disallow all write destinations except the front and backbuffer.
383 */
b5e89ed5 384static int mga_verify_context(drm_mga_private_t * dev_priv)
1da177e4
LT		 385{
386 drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
387 drm_mga_context_regs_t *ctx = &sarea_priv->context_state;
388
b5e89ed5
DA		 389 if (ctx->dstorg != dev_priv->front_offset &&
390 ctx->dstorg != dev_priv->back_offset) {
391 DRM_ERROR("*** bad DSTORG: %x (front %x, back %x)\n\n",
392 ctx->dstorg, dev_priv->front_offset,
393 dev_priv->back_offset);
1da177e4
LT		 394 ctx->dstorg = 0;
395 return DRM_ERR(EINVAL);
396 }
397
398 return 0;
399}
400
401/* Disallow texture reads from PCI space.
402 */
b5e89ed5 403static int mga_verify_tex(drm_mga_private_t * dev_priv, int unit)
1da177e4
LT		 404{
405 drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
406 drm_mga_texture_regs_t *tex = &sarea_priv->tex_state[unit];
407 unsigned int org;
408
409 org = tex->texorg & (MGA_TEXORGMAP_MASK | MGA_TEXORGACC_MASK);
410
b5e89ed5
DA		 411 if (org == (MGA_TEXORGMAP_SYSMEM | MGA_TEXORGACC_PCI)) {
412 DRM_ERROR("*** bad TEXORG: 0x%x, unit %d\n", tex->texorg, unit);
1da177e4
LT		 413 tex->texorg = 0;
414 return DRM_ERR(EINVAL);
415 }
416
417 return 0;
418}
419
b5e89ed5 420static int mga_verify_state(drm_mga_private_t * dev_priv)
1da177e4
LT		 421{
422 drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
423 unsigned int dirty = sarea_priv->dirty;
424 int ret = 0;
425
b5e89ed5 426 if (sarea_priv->nbox > MGA_NR_SAREA_CLIPRECTS)
1da177e4
LT		 427 sarea_priv->nbox = MGA_NR_SAREA_CLIPRECTS;
428
b5e89ed5
DA		 429 if (dirty & MGA_UPLOAD_CONTEXT)
430 ret |= mga_verify_context(dev_priv);
1da177e4 431
b5e89ed5
DA		 432 if (dirty & MGA_UPLOAD_TEX0)
433 ret |= mga_verify_tex(dev_priv, 0);
1da177e4 434
6795c985
DA		 435 if (dev_priv->chipset >= MGA_CARD_TYPE_G400) {
436 if (dirty & MGA_UPLOAD_TEX1)
437 ret |= mga_verify_tex(dev_priv, 1);
1da177e4 438
b5e89ed5
DA		 439 if (dirty & MGA_UPLOAD_PIPE)
440 ret |= (sarea_priv->warp_pipe > MGA_MAX_G400_PIPES);
1da177e4 441 } else {
b5e89ed5
DA		 442 if (dirty & MGA_UPLOAD_PIPE)
443 ret |= (sarea_priv->warp_pipe > MGA_MAX_G200_PIPES);
1da177e4
LT		 444 }
445
b5e89ed5 446 return (ret == 0);
1da177e4
LT		 447}
448
b5e89ed5
DA		 449static int mga_verify_iload(drm_mga_private_t * dev_priv,
450 unsigned int dstorg, unsigned int length)
1da177e4 451{
b5e89ed5
DA		 452 if (dstorg < dev_priv->texture_offset ||
453 dstorg + length > (dev_priv->texture_offset +
454 dev_priv->texture_size)) {
455 DRM_ERROR("*** bad iload DSTORG: 0x%x\n", dstorg);
1da177e4
LT		 456 return DRM_ERR(EINVAL);
457 }
458
b5e89ed5
DA		 459 if (length & MGA_ILOAD_MASK) {
460 DRM_ERROR("*** bad iload length: 0x%x\n",
461 length & MGA_ILOAD_MASK);
1da177e4
LT		 462 return DRM_ERR(EINVAL);
463 }
464
465 return 0;
466}
467
b5e89ed5
DA		 468static int mga_verify_blit(drm_mga_private_t * dev_priv,
469 unsigned int srcorg, unsigned int dstorg)
1da177e4 470{
b5e89ed5
DA		 471 if ((srcorg & 0x3) == (MGA_SRCACC_PCI | MGA_SRCMAP_SYSMEM) ||
472 (dstorg & 0x3) == (MGA_SRCACC_PCI | MGA_SRCMAP_SYSMEM)) {
473 DRM_ERROR("*** bad blit: src=0x%x dst=0x%x\n", srcorg, dstorg);
1da177e4
LT		 474 return DRM_ERR(EINVAL);
475 }
476 return 0;
477}
478
1da177e4
LT		 479/* ================================================================
480 *
481 */
482
b5e89ed5 483static void mga_dma_dispatch_clear(drm_device_t * dev, drm_mga_clear_t * clear)
1da177e4
LT		 484{
485 drm_mga_private_t *dev_priv = dev->dev_private;
486 drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
487 drm_mga_context_regs_t *ctx = &sarea_priv->context_state;
488 drm_clip_rect_t *pbox = sarea_priv->boxes;
489 int nbox = sarea_priv->nbox;
490 int i;
491 DMA_LOCALS;
b5e89ed5 492 DRM_DEBUG("\n");
1da177e4 493
b5e89ed5 494 BEGIN_DMA(1);
1da177e4 495
b5e89ed5
DA		 496 DMA_BLOCK(MGA_DMAPAD, 0x00000000,
497 MGA_DMAPAD, 0x00000000,
498 MGA_DWGSYNC, 0x00007100, MGA_DWGSYNC, 0x00007000);
1da177e4
LT		 499
500 ADVANCE_DMA();
501
b5e89ed5 502 for (i = 0; i < nbox; i++) {
1da177e4
LT		 503 drm_clip_rect_t *box = &pbox[i];
504 u32 height = box->y2 - box->y1;
505
b5e89ed5
DA		 506 DRM_DEBUG(" from=%d,%d to=%d,%d\n",
507 box->x1, box->y1, box->x2, box->y2);
1da177e4 508
b5e89ed5
DA		 509 if (clear->flags & MGA_FRONT) {
510 BEGIN_DMA(2);
1da177e4 511
b5e89ed5
DA		 512 DMA_BLOCK(MGA_DMAPAD, 0x00000000,
513 MGA_PLNWT, clear->color_mask,
514 MGA_YDSTLEN, (box->y1 << 16) | height,
515 MGA_FXBNDRY, (box->x2 << 16) | box->x1);
1da177e4 516
b5e89ed5
DA		 517 DMA_BLOCK(MGA_DMAPAD, 0x00000000,
518 MGA_FCOL, clear->clear_color,
519 MGA_DSTORG, dev_priv->front_offset,
520 MGA_DWGCTL + MGA_EXEC, dev_priv->clear_cmd);
1da177e4
LT		 521
522 ADVANCE_DMA();
523 }
524
b5e89ed5
DA		 525 if (clear->flags & MGA_BACK) {
526 BEGIN_DMA(2);
1da177e4 527
b5e89ed5
DA		 528 DMA_BLOCK(MGA_DMAPAD, 0x00000000,
529 MGA_PLNWT, clear->color_mask,
530 MGA_YDSTLEN, (box->y1 << 16) | height,
531 MGA_FXBNDRY, (box->x2 << 16) | box->x1);
1da177e4 532
b5e89ed5
DA		 533 DMA_BLOCK(MGA_DMAPAD, 0x00000000,
534 MGA_FCOL, clear->clear_color,
535 MGA_DSTORG, dev_priv->back_offset,
536 MGA_DWGCTL + MGA_EXEC, dev_priv->clear_cmd);
1da177e4
LT		 537
538 ADVANCE_DMA();
539 }
540
b5e89ed5
DA		 541 if (clear->flags & MGA_DEPTH) {
542 BEGIN_DMA(2);
1da177e4 543
b5e89ed5
DA		 544 DMA_BLOCK(MGA_DMAPAD, 0x00000000,
545 MGA_PLNWT, clear->depth_mask,
546 MGA_YDSTLEN, (box->y1 << 16) | height,
547 MGA_FXBNDRY, (box->x2 << 16) | box->x1);
1da177e4 548
b5e89ed5
DA		 549 DMA_BLOCK(MGA_DMAPAD, 0x00000000,
550 MGA_FCOL, clear->clear_depth,
551 MGA_DSTORG, dev_priv->depth_offset,
552 MGA_DWGCTL + MGA_EXEC, dev_priv->clear_cmd);
1da177e4
LT		 553
554 ADVANCE_DMA();
555 }
556
557 }
558
b5e89ed5 559 BEGIN_DMA(1);
1da177e4
LT		 560
561 /* Force reset of DWGCTL */
b5e89ed5
DA		 562 DMA_BLOCK(MGA_DMAPAD, 0x00000000,
563 MGA_DMAPAD, 0x00000000,
564 MGA_PLNWT, ctx->plnwt, MGA_DWGCTL, ctx->dwgctl);
1da177e4
LT		 565
566 ADVANCE_DMA();
567
568 FLUSH_DMA();
569}
570
b5e89ed5 571static void mga_dma_dispatch_swap(drm_device_t * dev)
1da177e4
LT		 572{
573 drm_mga_private_t *dev_priv = dev->dev_private;
574 drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
575 drm_mga_context_regs_t *ctx = &sarea_priv->context_state;
576 drm_clip_rect_t *pbox = sarea_priv->boxes;
577 int nbox = sarea_priv->nbox;
578 int i;
579 DMA_LOCALS;
b5e89ed5 580 DRM_DEBUG("\n");
1da177e4
LT		 581
582 sarea_priv->last_frame.head = dev_priv->prim.tail;
583 sarea_priv->last_frame.wrap = dev_priv->prim.last_wrap;
584
b5e89ed5 585 BEGIN_DMA(4 + nbox);
1da177e4 586
b5e89ed5
DA		 587 DMA_BLOCK(MGA_DMAPAD, 0x00000000,
588 MGA_DMAPAD, 0x00000000,
589 MGA_DWGSYNC, 0x00007100, MGA_DWGSYNC, 0x00007000);
1da177e4 590
b5e89ed5
DA		 591 DMA_BLOCK(MGA_DSTORG, dev_priv->front_offset,
592 MGA_MACCESS, dev_priv->maccess,
593 MGA_SRCORG, dev_priv->back_offset,
594 MGA_AR5, dev_priv->front_pitch);
1da177e4 595
b5e89ed5
DA		 596 DMA_BLOCK(MGA_DMAPAD, 0x00000000,
597 MGA_DMAPAD, 0x00000000,
598 MGA_PLNWT, 0xffffffff, MGA_DWGCTL, MGA_DWGCTL_COPY);
1da177e4 599
b5e89ed5 600 for (i = 0; i < nbox; i++) {
1da177e4
LT		 601 drm_clip_rect_t *box = &pbox[i];
602 u32 height = box->y2 - box->y1;
603 u32 start = box->y1 * dev_priv->front_pitch;
604
b5e89ed5
DA		 605 DRM_DEBUG(" from=%d,%d to=%d,%d\n",
606 box->x1, box->y1, box->x2, box->y2);
1da177e4 607
b5e89ed5
DA		 608 DMA_BLOCK(MGA_AR0, start + box->x2 - 1,
609 MGA_AR3, start + box->x1,
610 MGA_FXBNDRY, ((box->x2 - 1) << 16) | box->x1,
611 MGA_YDSTLEN + MGA_EXEC, (box->y1 << 16) | height);
1da177e4
LT		 612 }
613
b5e89ed5
DA		 614 DMA_BLOCK(MGA_DMAPAD, 0x00000000,
615 MGA_PLNWT, ctx->plnwt,
616 MGA_SRCORG, dev_priv->front_offset, MGA_DWGCTL, ctx->dwgctl);
1da177e4
LT		 617
618 ADVANCE_DMA();
619
620 FLUSH_DMA();
621
b5e89ed5 622 DRM_DEBUG("%s... done.\n", __FUNCTION__);
1da177e4
LT		 623}
624
b5e89ed5 625static void mga_dma_dispatch_vertex(drm_device_t * dev, drm_buf_t * buf)
1da177e4
LT		 626{
627 drm_mga_private_t *dev_priv = dev->dev_private;
628 drm_mga_buf_priv_t *buf_priv = buf->dev_private;
629 drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
630 u32 address = (u32) buf->bus_address;
631 u32 length = (u32) buf->used;
632 int i = 0;
633 DMA_LOCALS;
b5e89ed5 634 DRM_DEBUG("vertex: buf=%d used=%d\n", buf->idx, buf->used);
1da177e4 635
b5e89ed5 636 if (buf->used) {
1da177e4
LT		 637 buf_priv->dispatched = 1;
638
b5e89ed5 639 MGA_EMIT_STATE(dev_priv, sarea_priv->dirty);
1da177e4
LT		 640
641 do {
b5e89ed5
DA		 642 if (i < sarea_priv->nbox) {
643 mga_emit_clip_rect(dev_priv,
644 &sarea_priv->boxes[i]);
1da177e4
LT		 645 }
646
b5e89ed5 647 BEGIN_DMA(1);
1da177e4 648
6795c985
DA		 649 DMA_BLOCK(MGA_DMAPAD, 0x00000000,
650 MGA_DMAPAD, 0x00000000,
651 MGA_SECADDRESS, (address |
652 MGA_DMA_VERTEX),
653 MGA_SECEND, ((address + length) |
654 dev_priv->dma_access));
1da177e4
LT		 655
656 ADVANCE_DMA();
b5e89ed5 657 } while (++i < sarea_priv->nbox);
1da177e4
LT		 658 }
659
b5e89ed5
DA		 660 if (buf_priv->discard) {
661 AGE_BUFFER(buf_priv);
1da177e4
LT		 662 buf->pending = 0;
663 buf->used = 0;
664 buf_priv->dispatched = 0;
665
b5e89ed5 666 mga_freelist_put(dev, buf);
1da177e4
LT		 667 }
668
669 FLUSH_DMA();
670}
671
b5e89ed5
DA		 672static void mga_dma_dispatch_indices(drm_device_t * dev, drm_buf_t * buf,
673 unsigned int start, unsigned int end)
1da177e4
LT		 674{
675 drm_mga_private_t *dev_priv = dev->dev_private;
676 drm_mga_buf_priv_t *buf_priv = buf->dev_private;
677 drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
678 u32 address = (u32) buf->bus_address;
679 int i = 0;
680 DMA_LOCALS;
b5e89ed5 681 DRM_DEBUG("indices: buf=%d start=%d end=%d\n", buf->idx, start, end);
1da177e4 682
b5e89ed5 683 if (start != end) {
1da177e4
LT		 684 buf_priv->dispatched = 1;
685
b5e89ed5 686 MGA_EMIT_STATE(dev_priv, sarea_priv->dirty);
1da177e4
LT		 687
688 do {
b5e89ed5
DA		 689 if (i < sarea_priv->nbox) {
690 mga_emit_clip_rect(dev_priv,
691 &sarea_priv->boxes[i]);
1da177e4
LT		 692 }
693
b5e89ed5 694 BEGIN_DMA(1);
1da177e4 695
6795c985
DA		 696 DMA_BLOCK(MGA_DMAPAD, 0x00000000,
697 MGA_DMAPAD, 0x00000000,
698 MGA_SETUPADDRESS, address + start,
699 MGA_SETUPEND, ((address + end) |
700 dev_priv->dma_access));
1da177e4
LT		 701
702 ADVANCE_DMA();
b5e89ed5 703 } while (++i < sarea_priv->nbox);
1da177e4
LT		 704 }
705
b5e89ed5
DA		 706 if (buf_priv->discard) {
707 AGE_BUFFER(buf_priv);
1da177e4
LT		 708 buf->pending = 0;
709 buf->used = 0;
710 buf_priv->dispatched = 0;
711
b5e89ed5 712 mga_freelist_put(dev, buf);
1da177e4
LT		 713 }
714
715 FLUSH_DMA();
716}
717
718/* This copies a 64 byte aligned agp region to the frambuffer with a
719 * standard blit, the ioctl needs to do checking.
720 */
b5e89ed5
DA		 721static void mga_dma_dispatch_iload(drm_device_t * dev, drm_buf_t * buf,
722 unsigned int dstorg, unsigned int length)
1da177e4
LT		 723{
724 drm_mga_private_t *dev_priv = dev->dev_private;
725 drm_mga_buf_priv_t *buf_priv = buf->dev_private;
726 drm_mga_context_regs_t *ctx = &dev_priv->sarea_priv->context_state;
b5e89ed5
DA		 727 u32 srcorg =
728 buf->bus_address | dev_priv->dma_access | MGA_SRCMAP_SYSMEM;
1da177e4
LT		 729 u32 y2;
730 DMA_LOCALS;
b5e89ed5 731 DRM_DEBUG("buf=%d used=%d\n", buf->idx, buf->used);
1da177e4
LT		 732
733 y2 = length / 64;
734
b5e89ed5 735 BEGIN_DMA(5);
1da177e4 736
b5e89ed5
DA		 737 DMA_BLOCK(MGA_DMAPAD, 0x00000000,
738 MGA_DMAPAD, 0x00000000,
739 MGA_DWGSYNC, 0x00007100, MGA_DWGSYNC, 0x00007000);
1da177e4 740
b5e89ed5
DA		 741 DMA_BLOCK(MGA_DSTORG, dstorg,
742 MGA_MACCESS, 0x00000000, MGA_SRCORG, srcorg, MGA_AR5, 64);
1da177e4 743
b5e89ed5
DA		 744 DMA_BLOCK(MGA_PITCH, 64,
745 MGA_PLNWT, 0xffffffff,
746 MGA_DMAPAD, 0x00000000, MGA_DWGCTL, MGA_DWGCTL_COPY);
1da177e4 747
b5e89ed5
DA		 748 DMA_BLOCK(MGA_AR0, 63,
749 MGA_AR3, 0,
750 MGA_FXBNDRY, (63 << 16) | 0, MGA_YDSTLEN + MGA_EXEC, y2);
1da177e4 751
b5e89ed5
DA		 752 DMA_BLOCK(MGA_PLNWT, ctx->plnwt,
753 MGA_SRCORG, dev_priv->front_offset,
754 MGA_PITCH, dev_priv->front_pitch, MGA_DWGSYNC, 0x00007000);
1da177e4
LT		 755
756 ADVANCE_DMA();
757
b5e89ed5 758 AGE_BUFFER(buf_priv);
1da177e4
LT		 759
760 buf->pending = 0;
761 buf->used = 0;
762 buf_priv->dispatched = 0;
763
b5e89ed5 764 mga_freelist_put(dev, buf);
1da177e4
LT		 765
766 FLUSH_DMA();
767}
768
b5e89ed5 769static void mga_dma_dispatch_blit(drm_device_t * dev, drm_mga_blit_t * blit)
1da177e4
LT		 770{
771 drm_mga_private_t *dev_priv = dev->dev_private;
772 drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
773 drm_mga_context_regs_t *ctx = &sarea_priv->context_state;
774 drm_clip_rect_t *pbox = sarea_priv->boxes;
775 int nbox = sarea_priv->nbox;
776 u32 scandir = 0, i;
777 DMA_LOCALS;
b5e89ed5 778 DRM_DEBUG("\n");
1da177e4 779
b5e89ed5 780 BEGIN_DMA(4 + nbox);
1da177e4 781
b5e89ed5
DA		 782 DMA_BLOCK(MGA_DMAPAD, 0x00000000,
783 MGA_DMAPAD, 0x00000000,
784 MGA_DWGSYNC, 0x00007100, MGA_DWGSYNC, 0x00007000);
1da177e4 785
b5e89ed5
DA		 786 DMA_BLOCK(MGA_DWGCTL, MGA_DWGCTL_COPY,
787 MGA_PLNWT, blit->planemask,
788 MGA_SRCORG, blit->srcorg, MGA_DSTORG, blit->dstorg);
1da177e4 789
b5e89ed5
DA		 790 DMA_BLOCK(MGA_SGN, scandir,
791 MGA_MACCESS, dev_priv->maccess,
792 MGA_AR5, blit->ydir * blit->src_pitch,
793 MGA_PITCH, blit->dst_pitch);
1da177e4 794
b5e89ed5 795 for (i = 0; i < nbox; i++) {
1da177e4
LT		 796 int srcx = pbox[i].x1 + blit->delta_sx;
797 int srcy = pbox[i].y1 + blit->delta_sy;
798 int dstx = pbox[i].x1 + blit->delta_dx;
799 int dsty = pbox[i].y1 + blit->delta_dy;
800 int h = pbox[i].y2 - pbox[i].y1;
801 int w = pbox[i].x2 - pbox[i].x1 - 1;
802 int start;
803
b5e89ed5 804 if (blit->ydir == -1) {
1da177e4
LT		 805 srcy = blit->height - srcy - 1;
806 }
807
808 start = srcy * blit->src_pitch + srcx;
809
b5e89ed5
DA		 810 DMA_BLOCK(MGA_AR0, start + w,
811 MGA_AR3, start,
812 MGA_FXBNDRY, ((dstx + w) << 16) | (dstx & 0xffff),
813 MGA_YDSTLEN + MGA_EXEC, (dsty << 16) | h);
1da177e4
LT		 814 }
815
816 /* Do something to flush AGP?
817 */
818
819 /* Force reset of DWGCTL */
b5e89ed5
DA		 820 DMA_BLOCK(MGA_DMAPAD, 0x00000000,
821 MGA_PLNWT, ctx->plnwt,
822 MGA_PITCH, dev_priv->front_pitch, MGA_DWGCTL, ctx->dwgctl);
1da177e4
LT		 823
824 ADVANCE_DMA();
825}
826
1da177e4
LT		 827/* ================================================================
828 *
829 */
830
b5e89ed5 831static int mga_dma_clear(DRM_IOCTL_ARGS)
1da177e4
LT		 832{
833 DRM_DEVICE;
834 drm_mga_private_t *dev_priv = dev->dev_private;
835 drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
836 drm_mga_clear_t clear;
837
b5e89ed5 838 LOCK_TEST_WITH_RETURN(dev, filp);
1da177e4 839
b5e89ed5
DA		 840 DRM_COPY_FROM_USER_IOCTL(clear, (drm_mga_clear_t __user *) data,
841 sizeof(clear));
1da177e4 842
b5e89ed5 843 if (sarea_priv->nbox > MGA_NR_SAREA_CLIPRECTS)
1da177e4
LT		 844 sarea_priv->nbox = MGA_NR_SAREA_CLIPRECTS;
845
b5e89ed5 846 WRAP_TEST_WITH_RETURN(dev_priv);
1da177e4 847
b5e89ed5 848 mga_dma_dispatch_clear(dev, &clear);
1da177e4
LT		 849
850 /* Make sure we restore the 3D state next time.
851 */
852 dev_priv->sarea_priv->dirty |= MGA_UPLOAD_CONTEXT;
853
854 return 0;
855}
856
b5e89ed5 857static int mga_dma_swap(DRM_IOCTL_ARGS)
1da177e4
LT		 858{
859 DRM_DEVICE;
860 drm_mga_private_t *dev_priv = dev->dev_private;
861 drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
862
b5e89ed5 863 LOCK_TEST_WITH_RETURN(dev, filp);
1da177e4 864
b5e89ed5 865 if (sarea_priv->nbox > MGA_NR_SAREA_CLIPRECTS)
1da177e4
LT		 866 sarea_priv->nbox = MGA_NR_SAREA_CLIPRECTS;
867
b5e89ed5 868 WRAP_TEST_WITH_RETURN(dev_priv);
1da177e4 869
b5e89ed5 870 mga_dma_dispatch_swap(dev);
1da177e4
LT		 871
872 /* Make sure we restore the 3D state next time.
873 */
874 dev_priv->sarea_priv->dirty |= MGA_UPLOAD_CONTEXT;
875
876 return 0;
877}
878
b5e89ed5 879static int mga_dma_vertex(DRM_IOCTL_ARGS)
1da177e4
LT		 880{
881 DRM_DEVICE;
882 drm_mga_private_t *dev_priv = dev->dev_private;
883 drm_device_dma_t *dma = dev->dma;
884 drm_buf_t *buf;
885 drm_mga_buf_priv_t *buf_priv;
886 drm_mga_vertex_t vertex;
887
b5e89ed5 888 LOCK_TEST_WITH_RETURN(dev, filp);
1da177e4 889
b5e89ed5
DA		 890 DRM_COPY_FROM_USER_IOCTL(vertex,
891 (drm_mga_vertex_t __user *) data,
892 sizeof(vertex));
1da177e4 893
b5e89ed5
DA		 894 if (vertex.idx < 0 || vertex.idx > dma->buf_count)
895 return DRM_ERR(EINVAL);
1da177e4
LT		 896 buf = dma->buflist[vertex.idx];
897 buf_priv = buf->dev_private;
898
899 buf->used = vertex.used;
900 buf_priv->discard = vertex.discard;
901
b5e89ed5
DA		 902 if (!mga_verify_state(dev_priv)) {
903 if (vertex.discard) {
904 if (buf_priv->dispatched == 1)
905 AGE_BUFFER(buf_priv);
1da177e4 906 buf_priv->dispatched = 0;
b5e89ed5 907 mga_freelist_put(dev, buf);
1da177e4
LT		 908 }
909 return DRM_ERR(EINVAL);
910 }
911
b5e89ed5 912 WRAP_TEST_WITH_RETURN(dev_priv);
1da177e4 913
b5e89ed5 914 mga_dma_dispatch_vertex(dev, buf);
1da177e4
LT		 915
916 return 0;
917}
918
b5e89ed5 919static int mga_dma_indices(DRM_IOCTL_ARGS)
1da177e4
LT		 920{
921 DRM_DEVICE;
922 drm_mga_private_t *dev_priv = dev->dev_private;
923 drm_device_dma_t *dma = dev->dma;
924 drm_buf_t *buf;
925 drm_mga_buf_priv_t *buf_priv;
926 drm_mga_indices_t indices;
927
b5e89ed5 928 LOCK_TEST_WITH_RETURN(dev, filp);
1da177e4 929
b5e89ed5
DA		 930 DRM_COPY_FROM_USER_IOCTL(indices,
931 (drm_mga_indices_t __user *) data,
932 sizeof(indices));
1da177e4 933
b5e89ed5
DA		 934 if (indices.idx < 0 || indices.idx > dma->buf_count)
935 return DRM_ERR(EINVAL);
1da177e4
LT		 936
937 buf = dma->buflist[indices.idx];
938 buf_priv = buf->dev_private;
939
940 buf_priv->discard = indices.discard;
941
b5e89ed5
DA		 942 if (!mga_verify_state(dev_priv)) {
943 if (indices.discard) {
944 if (buf_priv->dispatched == 1)
945 AGE_BUFFER(buf_priv);
1da177e4 946 buf_priv->dispatched = 0;
b5e89ed5 947 mga_freelist_put(dev, buf);
1da177e4
LT		 948 }
949 return DRM_ERR(EINVAL);
950 }
951
b5e89ed5 952 WRAP_TEST_WITH_RETURN(dev_priv);
1da177e4 953
b5e89ed5 954 mga_dma_dispatch_indices(dev, buf, indices.start, indices.end);
1da177e4
LT		 955
956 return 0;
957}
958
b5e89ed5 959static int mga_dma_iload(DRM_IOCTL_ARGS)
1da177e4
LT		 960{
961 DRM_DEVICE;
962 drm_device_dma_t *dma = dev->dma;
963 drm_mga_private_t *dev_priv = dev->dev_private;
964 drm_buf_t *buf;
965 drm_mga_buf_priv_t *buf_priv;
966 drm_mga_iload_t iload;
b5e89ed5 967 DRM_DEBUG("\n");
1da177e4 968
b5e89ed5 969 LOCK_TEST_WITH_RETURN(dev, filp);
1da177e4 970
b5e89ed5
DA		 971 DRM_COPY_FROM_USER_IOCTL(iload, (drm_mga_iload_t __user *) data,
972 sizeof(iload));
1da177e4
LT		 973
974#if 0
b5e89ed5
DA		 975 if (mga_do_wait_for_idle(dev_priv) < 0) {
976 if (MGA_DMA_DEBUG)
977 DRM_INFO("%s: -EBUSY\n", __FUNCTION__);
1da177e4
LT		 978 return DRM_ERR(EBUSY);
979 }
980#endif
b5e89ed5
DA		 981 if (iload.idx < 0 || iload.idx > dma->buf_count)
982 return DRM_ERR(EINVAL);
1da177e4
LT		 983
984 buf = dma->buflist[iload.idx];
985 buf_priv = buf->dev_private;
986
b5e89ed5
DA		 987 if (mga_verify_iload(dev_priv, iload.dstorg, iload.length)) {
988 mga_freelist_put(dev, buf);
1da177e4
LT		 989 return DRM_ERR(EINVAL);
990 }
991
b5e89ed5 992 WRAP_TEST_WITH_RETURN(dev_priv);
1da177e4 993
b5e89ed5 994 mga_dma_dispatch_iload(dev, buf, iload.dstorg, iload.length);
1da177e4
LT		 995
996 /* Make sure we restore the 3D state next time.
997 */
998 dev_priv->sarea_priv->dirty |= MGA_UPLOAD_CONTEXT;
999
1000 return 0;
1001}
1002
b5e89ed5 1003static int mga_dma_blit(DRM_IOCTL_ARGS)
1da177e4
LT		 1004{
1005 DRM_DEVICE;
1006 drm_mga_private_t *dev_priv = dev->dev_private;
1007 drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv;
1008 drm_mga_blit_t blit;
b5e89ed5 1009 DRM_DEBUG("\n");
1da177e4 1010
b5e89ed5 1011 LOCK_TEST_WITH_RETURN(dev, filp);
1da177e4 1012
b5e89ed5
DA		 1013 DRM_COPY_FROM_USER_IOCTL(blit, (drm_mga_blit_t __user *) data,
1014 sizeof(blit));
1da177e4 1015
b5e89ed5 1016 if (sarea_priv->nbox > MGA_NR_SAREA_CLIPRECTS)
1da177e4
LT		 1017 sarea_priv->nbox = MGA_NR_SAREA_CLIPRECTS;
1018
b5e89ed5 1019 if (mga_verify_blit(dev_priv, blit.srcorg, blit.dstorg))
1da177e4
LT		 1020 return DRM_ERR(EINVAL);
1021
b5e89ed5 1022 WRAP_TEST_WITH_RETURN(dev_priv);
1da177e4 1023
b5e89ed5 1024 mga_dma_dispatch_blit(dev, &blit);
1da177e4
LT		 1025
1026 /* Make sure we restore the 3D state next time.
1027 */
1028 dev_priv->sarea_priv->dirty |= MGA_UPLOAD_CONTEXT;
1029
1030 return 0;
1031}
1032
b5e89ed5 1033static int mga_getparam(DRM_IOCTL_ARGS)
1da177e4
LT		 1034{
1035 DRM_DEVICE;
1036 drm_mga_private_t *dev_priv = dev->dev_private;
1037 drm_mga_getparam_t param;
1038 int value;
1039
b5e89ed5
DA		 1040 if (!dev_priv) {
1041 DRM_ERROR("%s called with no initialization\n", __FUNCTION__);
1da177e4
LT		 1042 return DRM_ERR(EINVAL);
1043 }
1044
b5e89ed5
DA		 1045 DRM_COPY_FROM_USER_IOCTL(param, (drm_mga_getparam_t __user *) data,
1046 sizeof(param));
1da177e4 1047
b5e89ed5 1048 DRM_DEBUG("pid=%d\n", DRM_CURRENTPID);
1da177e4 1049
b5e89ed5 1050 switch (param.param) {
1da177e4
LT		 1051 case MGA_PARAM_IRQ_NR:
1052 value = dev->irq;
1053 break;
6795c985
DA		 1054 case MGA_PARAM_CARD_TYPE:
1055 value = dev_priv->chipset;
1056 break;
1da177e4
LT		 1057 default:
1058 return DRM_ERR(EINVAL);
1059 }
1060
b5e89ed5
DA		 1061 if (DRM_COPY_TO_USER(param.value, &value, sizeof(int))) {
1062 DRM_ERROR("copy_to_user\n");
1da177e4
LT		 1063 return DRM_ERR(EFAULT);
1064 }
b5e89ed5 1065
1da177e4
LT		 1066 return 0;
1067}
1068
6795c985
DA		 1069static int mga_set_fence(DRM_IOCTL_ARGS)
1070{
1071 DRM_DEVICE;
1072 drm_mga_private_t *dev_priv = dev->dev_private;
1073 u32 temp;
1074 DMA_LOCALS;
1075
1076 if (!dev_priv) {
1077 DRM_ERROR("%s called with no initialization\n", __FUNCTION__);
1078 return DRM_ERR(EINVAL);
1079 }
1080
1081 DRM_DEBUG("pid=%d\n", DRM_CURRENTPID);
1082
1083 /* I would normal do this assignment in the declaration of temp,
1084 * but dev_priv may be NULL.
1085 */
1086
1087 temp = dev_priv->next_fence_to_post;
1088 dev_priv->next_fence_to_post++;
1089
1090 BEGIN_DMA(1);
1091 DMA_BLOCK(MGA_DMAPAD, 0x00000000,
1092 MGA_DMAPAD, 0x00000000,
b5e89ed5 1093 MGA_DMAPAD, 0x00000000, MGA_SOFTRAP, 0x00000000);
6795c985
DA		 1094 ADVANCE_DMA();
1095
b5e89ed5 1096 if (DRM_COPY_TO_USER((u32 __user *) data, &temp, sizeof(u32))) {
6795c985
DA		 1097 DRM_ERROR("copy_to_user\n");
1098 return DRM_ERR(EFAULT);
1099 }
1100
1101 return 0;
1102}
1103
1104static int mga_wait_fence(DRM_IOCTL_ARGS)
1105{
1106 DRM_DEVICE;
1107 drm_mga_private_t *dev_priv = dev->dev_private;
1108 u32 fence;
1109
1110 if (!dev_priv) {
1111 DRM_ERROR("%s called with no initialization\n", __FUNCTION__);
1112 return DRM_ERR(EINVAL);
1113 }
1114
1115 DRM_COPY_FROM_USER_IOCTL(fence, (u32 __user *) data, sizeof(u32));
1116
1117 DRM_DEBUG("pid=%d\n", DRM_CURRENTPID);
1118
b5e89ed5 1119 mga_driver_fence_wait(dev, &fence);
6795c985 1120
b5e89ed5 1121 if (DRM_COPY_TO_USER((u32 __user *) data, &fence, sizeof(u32))) {
6795c985
DA		 1122 DRM_ERROR("copy_to_user\n");
1123 return DRM_ERR(EFAULT);
1124 }
1125
1126 return 0;
1127}
1128
1da177e4 1129drm_ioctl_desc_t mga_ioctls[] = {
b5e89ed5
DA		 1130 [DRM_IOCTL_NR(DRM_MGA_INIT)] = {mga_dma_init, 1, 1}
1131 ,
1132 [DRM_IOCTL_NR(DRM_MGA_FLUSH)] = {mga_dma_flush, 1, 0}
1133 ,
1134 [DRM_IOCTL_NR(DRM_MGA_RESET)] = {mga_dma_reset, 1, 0}
1135 ,
1136 [DRM_IOCTL_NR(DRM_MGA_SWAP)] = {mga_dma_swap, 1, 0}
1137 ,
1138 [DRM_IOCTL_NR(DRM_MGA_CLEAR)] = {mga_dma_clear, 1, 0}
1139 ,
1140 [DRM_IOCTL_NR(DRM_MGA_VERTEX)] = {mga_dma_vertex, 1, 0}
1141 ,
1142 [DRM_IOCTL_NR(DRM_MGA_INDICES)] = {mga_dma_indices, 1, 0}
1143 ,
1144 [DRM_IOCTL_NR(DRM_MGA_ILOAD)] = {mga_dma_iload, 1, 0}
1145 ,
1146 [DRM_IOCTL_NR(DRM_MGA_BLIT)] = {mga_dma_blit, 1, 0}
1147 ,
1148 [DRM_IOCTL_NR(DRM_MGA_GETPARAM)] = {mga_getparam, 1, 0}
1149 ,
1150 [DRM_IOCTL_NR(DRM_MGA_SET_FENCE)] = {mga_set_fence, 1, 0}
1151 ,
1152 [DRM_IOCTL_NR(DRM_MGA_WAIT_FENCE)] = {mga_wait_fence, 1, 0}
1153 ,
1154 [DRM_IOCTL_NR(DRM_MGA_DMA_BOOTSTRAP)] = {mga_dma_bootstrap, 1, 1}
1155 ,
6795c985 1156
1da177e4
LT		 1157};
1158
1159int mga_max_ioctl = DRM_ARRAY_SIZE(mga_ioctls);
Linux kernel - Deliverables
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