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
4 * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
5 * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
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:
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
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.
28 * Jeff Hartmann <jhartmann@valinux.com>
29 * Keith Whitwell <keith@tungstengraphics.com>
32 * Gareth Hughes <gareth@valinux.com>
40 /* ================================================================
41 * DMA hardware state programming functions
44 static void mga_emit_clip_rect( drm_mga_private_t
*dev_priv
,
45 drm_clip_rect_t
*box
)
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
;
54 /* Force reset of DWGCTL on G400 (eliminates clip disable bit).
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);
62 DMA_BLOCK(MGA_DMAPAD
, 0x00000000,
63 MGA_CXBNDRY
, ((box
->x2
- 1) << 16) | box
->x1
,
64 MGA_YTOP
, box
->y1
* pitch
,
65 MGA_YBOT
, (box
->y2
- 1) * pitch
);
70 static __inline__
void mga_g200_emit_context( drm_mga_private_t
*dev_priv
)
72 drm_mga_sarea_t
*sarea_priv
= dev_priv
->sarea_priv
;
73 drm_mga_context_regs_t
*ctx
= &sarea_priv
->context_state
;
78 DMA_BLOCK( MGA_DSTORG
, ctx
->dstorg
,
79 MGA_MACCESS
, ctx
->maccess
,
80 MGA_PLNWT
, ctx
->plnwt
,
81 MGA_DWGCTL
, ctx
->dwgctl
);
83 DMA_BLOCK( MGA_ALPHACTRL
, ctx
->alphactrl
,
84 MGA_FOGCOL
, ctx
->fogcolor
,
85 MGA_WFLAG
, ctx
->wflag
,
86 MGA_ZORG
, dev_priv
->depth_offset
);
88 DMA_BLOCK( MGA_FCOL
, ctx
->fcol
,
89 MGA_DMAPAD
, 0x00000000,
90 MGA_DMAPAD
, 0x00000000,
91 MGA_DMAPAD
, 0x00000000 );
96 static __inline__
void mga_g400_emit_context( drm_mga_private_t
*dev_priv
)
98 drm_mga_sarea_t
*sarea_priv
= dev_priv
->sarea_priv
;
99 drm_mga_context_regs_t
*ctx
= &sarea_priv
->context_state
;
104 DMA_BLOCK( MGA_DSTORG
, ctx
->dstorg
,
105 MGA_MACCESS
, ctx
->maccess
,
106 MGA_PLNWT
, ctx
->plnwt
,
107 MGA_DWGCTL
, ctx
->dwgctl
);
109 DMA_BLOCK( MGA_ALPHACTRL
, ctx
->alphactrl
,
110 MGA_FOGCOL
, ctx
->fogcolor
,
111 MGA_WFLAG
, ctx
->wflag
,
112 MGA_ZORG
, dev_priv
->depth_offset
);
114 DMA_BLOCK( MGA_WFLAG1
, ctx
->wflag
,
115 MGA_TDUALSTAGE0
, ctx
->tdualstage0
,
116 MGA_TDUALSTAGE1
, ctx
->tdualstage1
,
117 MGA_FCOL
, ctx
->fcol
);
119 DMA_BLOCK( MGA_STENCIL
, ctx
->stencil
,
120 MGA_STENCILCTL
, ctx
->stencilctl
,
121 MGA_DMAPAD
, 0x00000000,
122 MGA_DMAPAD
, 0x00000000 );
127 static __inline__
void mga_g200_emit_tex0( drm_mga_private_t
*dev_priv
)
129 drm_mga_sarea_t
*sarea_priv
= dev_priv
->sarea_priv
;
130 drm_mga_texture_regs_t
*tex
= &sarea_priv
->tex_state
[0];
135 DMA_BLOCK( MGA_TEXCTL2
, tex
->texctl2
,
136 MGA_TEXCTL
, tex
->texctl
,
137 MGA_TEXFILTER
, tex
->texfilter
,
138 MGA_TEXBORDERCOL
, tex
->texbordercol
);
140 DMA_BLOCK( MGA_TEXORG
, tex
->texorg
,
141 MGA_TEXORG1
, tex
->texorg1
,
142 MGA_TEXORG2
, tex
->texorg2
,
143 MGA_TEXORG3
, tex
->texorg3
);
145 DMA_BLOCK( MGA_TEXORG4
, tex
->texorg4
,
146 MGA_TEXWIDTH
, tex
->texwidth
,
147 MGA_TEXHEIGHT
, tex
->texheight
,
148 MGA_WR24
, tex
->texwidth
);
150 DMA_BLOCK( MGA_WR34
, tex
->texheight
,
151 MGA_TEXTRANS
, 0x0000ffff,
152 MGA_TEXTRANSHIGH
, 0x0000ffff,
153 MGA_DMAPAD
, 0x00000000 );
158 static __inline__
void mga_g400_emit_tex0( drm_mga_private_t
*dev_priv
)
160 drm_mga_sarea_t
*sarea_priv
= dev_priv
->sarea_priv
;
161 drm_mga_texture_regs_t
*tex
= &sarea_priv
->tex_state
[0];
164 /* printk("mga_g400_emit_tex0 %x %x %x\n", tex->texorg, */
165 /* tex->texctl, tex->texctl2); */
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
);
174 DMA_BLOCK( MGA_TEXORG
, tex
->texorg
,
175 MGA_TEXORG1
, tex
->texorg1
,
176 MGA_TEXORG2
, tex
->texorg2
,
177 MGA_TEXORG3
, tex
->texorg3
);
179 DMA_BLOCK( MGA_TEXORG4
, tex
->texorg4
,
180 MGA_TEXWIDTH
, tex
->texwidth
,
181 MGA_TEXHEIGHT
, tex
->texheight
,
182 MGA_WR49
, 0x00000000 );
184 DMA_BLOCK( MGA_WR57
, 0x00000000,
185 MGA_WR53
, 0x00000000,
186 MGA_WR61
, 0x00000000,
187 MGA_WR52
, MGA_G400_WR_MAGIC
);
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 );
194 DMA_BLOCK( MGA_DMAPAD
, 0x00000000,
195 MGA_DMAPAD
, 0x00000000,
196 MGA_TEXTRANS
, 0x0000ffff,
197 MGA_TEXTRANSHIGH
, 0x0000ffff );
202 static __inline__
void mga_g400_emit_tex1( drm_mga_private_t
*dev_priv
)
204 drm_mga_sarea_t
*sarea_priv
= dev_priv
->sarea_priv
;
205 drm_mga_texture_regs_t
*tex
= &sarea_priv
->tex_state
[1];
208 /* printk("mga_g400_emit_tex1 %x %x %x\n", tex->texorg, */
209 /* tex->texctl, tex->texctl2); */
213 DMA_BLOCK( MGA_TEXCTL2
, (tex
->texctl2
|
216 MGA_TEXCTL
, tex
->texctl
,
217 MGA_TEXFILTER
, tex
->texfilter
,
218 MGA_TEXBORDERCOL
, tex
->texbordercol
);
220 DMA_BLOCK( MGA_TEXORG
, tex
->texorg
,
221 MGA_TEXORG1
, tex
->texorg1
,
222 MGA_TEXORG2
, tex
->texorg2
,
223 MGA_TEXORG3
, tex
->texorg3
);
225 DMA_BLOCK( MGA_TEXORG4
, tex
->texorg4
,
226 MGA_TEXWIDTH
, tex
->texwidth
,
227 MGA_TEXHEIGHT
, tex
->texheight
,
228 MGA_WR49
, 0x00000000 );
230 DMA_BLOCK( MGA_WR57
, 0x00000000,
231 MGA_WR53
, 0x00000000,
232 MGA_WR61
, 0x00000000,
233 MGA_WR52
, tex
->texwidth
| MGA_G400_WR_MAGIC
);
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
);
243 static __inline__
void mga_g200_emit_pipe( drm_mga_private_t
*dev_priv
)
245 drm_mga_sarea_t
*sarea_priv
= dev_priv
->sarea_priv
;
246 unsigned int pipe
= sarea_priv
->warp_pipe
;
251 DMA_BLOCK( MGA_WIADDR
, MGA_WMODE_SUSPEND
,
252 MGA_WVRTXSZ
, 0x00000007,
253 MGA_WFLAG
, 0x00000000,
254 MGA_WR24
, 0x00000000 );
256 DMA_BLOCK( MGA_WR25
, 0x00000100,
257 MGA_WR34
, 0x00000000,
258 MGA_WR42
, 0x0000ffff,
259 MGA_WR60
, 0x0000ffff );
261 /* Padding required to to hardware bug.
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
));
272 static __inline__
void mga_g400_emit_pipe( drm_mga_private_t
*dev_priv
)
274 drm_mga_sarea_t
*sarea_priv
= dev_priv
->sarea_priv
;
275 unsigned int pipe
= sarea_priv
->warp_pipe
;
278 /* printk("mga_g400_emit_pipe %x\n", pipe); */
282 DMA_BLOCK( MGA_WIADDR2
, MGA_WMODE_SUSPEND
,
283 MGA_DMAPAD
, 0x00000000,
284 MGA_DMAPAD
, 0x00000000,
285 MGA_DMAPAD
, 0x00000000 );
287 if ( pipe
& MGA_T2
) {
288 DMA_BLOCK( MGA_WVRTXSZ
, 0x00001e09,
289 MGA_DMAPAD
, 0x00000000,
290 MGA_DMAPAD
, 0x00000000,
291 MGA_DMAPAD
, 0x00000000 );
293 DMA_BLOCK( MGA_WACCEPTSEQ
, 0x00000000,
294 MGA_WACCEPTSEQ
, 0x00000000,
295 MGA_WACCEPTSEQ
, 0x00000000,
296 MGA_WACCEPTSEQ
, 0x1e000000 );
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
);
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 );
310 DMA_BLOCK( MGA_TEXCTL2
, (MGA_DUALTEX
|
312 MGA_LEN
+ MGA_EXEC
, 0x00000000,
313 MGA_TEXCTL2
, MGA_G400_TC2_MAGIC
,
314 MGA_DMAPAD
, 0x00000000 );
317 DMA_BLOCK( MGA_WVRTXSZ
, 0x00001807,
318 MGA_DMAPAD
, 0x00000000,
319 MGA_DMAPAD
, 0x00000000,
320 MGA_DMAPAD
, 0x00000000 );
322 DMA_BLOCK( MGA_WACCEPTSEQ
, 0x00000000,
323 MGA_WACCEPTSEQ
, 0x00000000,
324 MGA_WACCEPTSEQ
, 0x00000000,
325 MGA_WACCEPTSEQ
, 0x18000000 );
328 DMA_BLOCK( MGA_WFLAG
, 0x00000000,
329 MGA_WFLAG1
, 0x00000000,
330 MGA_WR56
, MGA_G400_WR56_MAGIC
,
331 MGA_DMAPAD
, 0x00000000 );
333 DMA_BLOCK( MGA_WR49
, 0x00000000, /* tex0 */
334 MGA_WR57
, 0x00000000, /* tex0 */
335 MGA_WR53
, 0x00000000, /* tex1 */
336 MGA_WR61
, 0x00000000 ); /* tex1 */
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 */
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
));
353 static void mga_g200_emit_state( drm_mga_private_t
*dev_priv
)
355 drm_mga_sarea_t
*sarea_priv
= dev_priv
->sarea_priv
;
356 unsigned int dirty
= sarea_priv
->dirty
;
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
;
363 if ( dirty
& MGA_UPLOAD_CONTEXT
) {
364 mga_g200_emit_context( dev_priv
);
365 sarea_priv
->dirty
&= ~MGA_UPLOAD_CONTEXT
;
368 if ( dirty
& MGA_UPLOAD_TEX0
) {
369 mga_g200_emit_tex0( dev_priv
);
370 sarea_priv
->dirty
&= ~MGA_UPLOAD_TEX0
;
374 static void mga_g400_emit_state( drm_mga_private_t
*dev_priv
)
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
;
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
;
385 if ( dirty
& MGA_UPLOAD_CONTEXT
) {
386 mga_g400_emit_context( dev_priv
);
387 sarea_priv
->dirty
&= ~MGA_UPLOAD_CONTEXT
;
390 if ( dirty
& MGA_UPLOAD_TEX0
) {
391 mga_g400_emit_tex0( dev_priv
);
392 sarea_priv
->dirty
&= ~MGA_UPLOAD_TEX0
;
395 if ( (dirty
& MGA_UPLOAD_TEX1
) && multitex
) {
396 mga_g400_emit_tex1( dev_priv
);
397 sarea_priv
->dirty
&= ~MGA_UPLOAD_TEX1
;
402 /* ================================================================
403 * SAREA state verification
406 /* Disallow all write destinations except the front and backbuffer.
408 static int mga_verify_context( drm_mga_private_t
*dev_priv
)
410 drm_mga_sarea_t
*sarea_priv
= dev_priv
->sarea_priv
;
411 drm_mga_context_regs_t
*ctx
= &sarea_priv
->context_state
;
413 if ( ctx
->dstorg
!= dev_priv
->front_offset
&&
414 ctx
->dstorg
!= dev_priv
->back_offset
) {
415 DRM_ERROR( "*** bad DSTORG: %x (front %x, back %x)\n\n",
416 ctx
->dstorg
, dev_priv
->front_offset
,
417 dev_priv
->back_offset
);
419 return DRM_ERR(EINVAL
);
425 /* Disallow texture reads from PCI space.
427 static int mga_verify_tex( drm_mga_private_t
*dev_priv
, int unit
)
429 drm_mga_sarea_t
*sarea_priv
= dev_priv
->sarea_priv
;
430 drm_mga_texture_regs_t
*tex
= &sarea_priv
->tex_state
[unit
];
433 org
= tex
->texorg
& (MGA_TEXORGMAP_MASK
| MGA_TEXORGACC_MASK
);
435 if ( org
== (MGA_TEXORGMAP_SYSMEM
| MGA_TEXORGACC_PCI
) ) {
436 DRM_ERROR( "*** bad TEXORG: 0x%x, unit %d\n",
439 return DRM_ERR(EINVAL
);
445 static int mga_verify_state( drm_mga_private_t
*dev_priv
)
447 drm_mga_sarea_t
*sarea_priv
= dev_priv
->sarea_priv
;
448 unsigned int dirty
= sarea_priv
->dirty
;
451 if ( sarea_priv
->nbox
> MGA_NR_SAREA_CLIPRECTS
)
452 sarea_priv
->nbox
= MGA_NR_SAREA_CLIPRECTS
;
454 if ( dirty
& MGA_UPLOAD_CONTEXT
)
455 ret
|= mga_verify_context( dev_priv
);
457 if ( dirty
& MGA_UPLOAD_TEX0
)
458 ret
|= mga_verify_tex( dev_priv
, 0 );
460 if (dev_priv
->chipset
>= MGA_CARD_TYPE_G400
) {
461 if (dirty
& MGA_UPLOAD_TEX1
)
462 ret
|= mga_verify_tex(dev_priv
, 1);
464 if ( dirty
& MGA_UPLOAD_PIPE
)
465 ret
|= ( sarea_priv
->warp_pipe
> MGA_MAX_G400_PIPES
);
467 if ( dirty
& MGA_UPLOAD_PIPE
)
468 ret
|= ( sarea_priv
->warp_pipe
> MGA_MAX_G200_PIPES
);
474 static int mga_verify_iload( drm_mga_private_t
*dev_priv
,
475 unsigned int dstorg
, unsigned int length
)
477 if ( dstorg
< dev_priv
->texture_offset
||
478 dstorg
+ length
> (dev_priv
->texture_offset
+
479 dev_priv
->texture_size
) ) {
480 DRM_ERROR( "*** bad iload DSTORG: 0x%x\n", dstorg
);
481 return DRM_ERR(EINVAL
);
484 if ( length
& MGA_ILOAD_MASK
) {
485 DRM_ERROR( "*** bad iload length: 0x%x\n",
486 length
& MGA_ILOAD_MASK
);
487 return DRM_ERR(EINVAL
);
493 static int mga_verify_blit( drm_mga_private_t
*dev_priv
,
494 unsigned int srcorg
, unsigned int dstorg
)
496 if ( (srcorg
& 0x3) == (MGA_SRCACC_PCI
| MGA_SRCMAP_SYSMEM
) ||
497 (dstorg
& 0x3) == (MGA_SRCACC_PCI
| MGA_SRCMAP_SYSMEM
) ) {
498 DRM_ERROR( "*** bad blit: src=0x%x dst=0x%x\n",
500 return DRM_ERR(EINVAL
);
506 /* ================================================================
510 static void mga_dma_dispatch_clear( drm_device_t
*dev
,
511 drm_mga_clear_t
*clear
)
513 drm_mga_private_t
*dev_priv
= dev
->dev_private
;
514 drm_mga_sarea_t
*sarea_priv
= dev_priv
->sarea_priv
;
515 drm_mga_context_regs_t
*ctx
= &sarea_priv
->context_state
;
516 drm_clip_rect_t
*pbox
= sarea_priv
->boxes
;
517 int nbox
= sarea_priv
->nbox
;
524 DMA_BLOCK( MGA_DMAPAD
, 0x00000000,
525 MGA_DMAPAD
, 0x00000000,
526 MGA_DWGSYNC
, 0x00007100,
527 MGA_DWGSYNC
, 0x00007000 );
531 for ( i
= 0 ; i
< nbox
; i
++ ) {
532 drm_clip_rect_t
*box
= &pbox
[i
];
533 u32 height
= box
->y2
- box
->y1
;
535 DRM_DEBUG( " from=%d,%d to=%d,%d\n",
536 box
->x1
, box
->y1
, box
->x2
, box
->y2
);
538 if ( clear
->flags
& MGA_FRONT
) {
541 DMA_BLOCK( MGA_DMAPAD
, 0x00000000,
542 MGA_PLNWT
, clear
->color_mask
,
543 MGA_YDSTLEN
, (box
->y1
<< 16) | height
,
544 MGA_FXBNDRY
, (box
->x2
<< 16) | box
->x1
);
546 DMA_BLOCK( MGA_DMAPAD
, 0x00000000,
547 MGA_FCOL
, clear
->clear_color
,
548 MGA_DSTORG
, dev_priv
->front_offset
,
549 MGA_DWGCTL
+ MGA_EXEC
,
550 dev_priv
->clear_cmd
);
556 if ( clear
->flags
& MGA_BACK
) {
559 DMA_BLOCK( MGA_DMAPAD
, 0x00000000,
560 MGA_PLNWT
, clear
->color_mask
,
561 MGA_YDSTLEN
, (box
->y1
<< 16) | height
,
562 MGA_FXBNDRY
, (box
->x2
<< 16) | box
->x1
);
564 DMA_BLOCK( MGA_DMAPAD
, 0x00000000,
565 MGA_FCOL
, clear
->clear_color
,
566 MGA_DSTORG
, dev_priv
->back_offset
,
567 MGA_DWGCTL
+ MGA_EXEC
,
568 dev_priv
->clear_cmd
);
573 if ( clear
->flags
& MGA_DEPTH
) {
576 DMA_BLOCK( MGA_DMAPAD
, 0x00000000,
577 MGA_PLNWT
, clear
->depth_mask
,
578 MGA_YDSTLEN
, (box
->y1
<< 16) | height
,
579 MGA_FXBNDRY
, (box
->x2
<< 16) | box
->x1
);
581 DMA_BLOCK( MGA_DMAPAD
, 0x00000000,
582 MGA_FCOL
, clear
->clear_depth
,
583 MGA_DSTORG
, dev_priv
->depth_offset
,
584 MGA_DWGCTL
+ MGA_EXEC
,
585 dev_priv
->clear_cmd
);
594 /* Force reset of DWGCTL */
595 DMA_BLOCK( MGA_DMAPAD
, 0x00000000,
596 MGA_DMAPAD
, 0x00000000,
597 MGA_PLNWT
, ctx
->plnwt
,
598 MGA_DWGCTL
, ctx
->dwgctl
);
605 static void mga_dma_dispatch_swap( drm_device_t
*dev
)
607 drm_mga_private_t
*dev_priv
= dev
->dev_private
;
608 drm_mga_sarea_t
*sarea_priv
= dev_priv
->sarea_priv
;
609 drm_mga_context_regs_t
*ctx
= &sarea_priv
->context_state
;
610 drm_clip_rect_t
*pbox
= sarea_priv
->boxes
;
611 int nbox
= sarea_priv
->nbox
;
616 sarea_priv
->last_frame
.head
= dev_priv
->prim
.tail
;
617 sarea_priv
->last_frame
.wrap
= dev_priv
->prim
.last_wrap
;
619 BEGIN_DMA( 4 + nbox
);
621 DMA_BLOCK( MGA_DMAPAD
, 0x00000000,
622 MGA_DMAPAD
, 0x00000000,
623 MGA_DWGSYNC
, 0x00007100,
624 MGA_DWGSYNC
, 0x00007000 );
626 DMA_BLOCK( MGA_DSTORG
, dev_priv
->front_offset
,
627 MGA_MACCESS
, dev_priv
->maccess
,
628 MGA_SRCORG
, dev_priv
->back_offset
,
629 MGA_AR5
, dev_priv
->front_pitch
);
631 DMA_BLOCK( MGA_DMAPAD
, 0x00000000,
632 MGA_DMAPAD
, 0x00000000,
633 MGA_PLNWT
, 0xffffffff,
634 MGA_DWGCTL
, MGA_DWGCTL_COPY
);
636 for ( i
= 0 ; i
< nbox
; i
++ ) {
637 drm_clip_rect_t
*box
= &pbox
[i
];
638 u32 height
= box
->y2
- box
->y1
;
639 u32 start
= box
->y1
* dev_priv
->front_pitch
;
641 DRM_DEBUG( " from=%d,%d to=%d,%d\n",
642 box
->x1
, box
->y1
, box
->x2
, box
->y2
);
644 DMA_BLOCK( MGA_AR0
, start
+ box
->x2
- 1,
645 MGA_AR3
, start
+ box
->x1
,
646 MGA_FXBNDRY
, ((box
->x2
- 1) << 16) | box
->x1
,
647 MGA_YDSTLEN
+ MGA_EXEC
,
648 (box
->y1
<< 16) | height
);
651 DMA_BLOCK( MGA_DMAPAD
, 0x00000000,
652 MGA_PLNWT
, ctx
->plnwt
,
653 MGA_SRCORG
, dev_priv
->front_offset
,
654 MGA_DWGCTL
, ctx
->dwgctl
);
660 DRM_DEBUG( "%s... done.\n", __FUNCTION__
);
663 static void mga_dma_dispatch_vertex( drm_device_t
*dev
, drm_buf_t
*buf
)
665 drm_mga_private_t
*dev_priv
= dev
->dev_private
;
666 drm_mga_buf_priv_t
*buf_priv
= buf
->dev_private
;
667 drm_mga_sarea_t
*sarea_priv
= dev_priv
->sarea_priv
;
668 u32 address
= (u32
) buf
->bus_address
;
669 u32 length
= (u32
) buf
->used
;
672 DRM_DEBUG( "vertex: buf=%d used=%d\n", buf
->idx
, buf
->used
);
675 buf_priv
->dispatched
= 1;
677 MGA_EMIT_STATE( dev_priv
, sarea_priv
->dirty
);
680 if ( i
< sarea_priv
->nbox
) {
681 mga_emit_clip_rect( dev_priv
,
682 &sarea_priv
->boxes
[i
] );
687 DMA_BLOCK(MGA_DMAPAD
, 0x00000000,
688 MGA_DMAPAD
, 0x00000000,
689 MGA_SECADDRESS
, (address
|
691 MGA_SECEND
, ((address
+ length
) |
692 dev_priv
->dma_access
));
695 } while ( ++i
< sarea_priv
->nbox
);
698 if ( buf_priv
->discard
) {
699 AGE_BUFFER( buf_priv
);
702 buf_priv
->dispatched
= 0;
704 mga_freelist_put( dev
, buf
);
710 static void mga_dma_dispatch_indices( drm_device_t
*dev
, drm_buf_t
*buf
,
711 unsigned int start
, unsigned int end
)
713 drm_mga_private_t
*dev_priv
= dev
->dev_private
;
714 drm_mga_buf_priv_t
*buf_priv
= buf
->dev_private
;
715 drm_mga_sarea_t
*sarea_priv
= dev_priv
->sarea_priv
;
716 u32 address
= (u32
) buf
->bus_address
;
719 DRM_DEBUG( "indices: buf=%d start=%d end=%d\n", buf
->idx
, start
, end
);
721 if ( start
!= end
) {
722 buf_priv
->dispatched
= 1;
724 MGA_EMIT_STATE( dev_priv
, sarea_priv
->dirty
);
727 if ( i
< sarea_priv
->nbox
) {
728 mga_emit_clip_rect( dev_priv
,
729 &sarea_priv
->boxes
[i
] );
734 DMA_BLOCK(MGA_DMAPAD
, 0x00000000,
735 MGA_DMAPAD
, 0x00000000,
736 MGA_SETUPADDRESS
, address
+ start
,
737 MGA_SETUPEND
, ((address
+ end
) |
738 dev_priv
->dma_access
));
741 } while ( ++i
< sarea_priv
->nbox
);
744 if ( buf_priv
->discard
) {
745 AGE_BUFFER( buf_priv
);
748 buf_priv
->dispatched
= 0;
750 mga_freelist_put( dev
, buf
);
756 /* This copies a 64 byte aligned agp region to the frambuffer with a
757 * standard blit, the ioctl needs to do checking.
759 static void mga_dma_dispatch_iload( drm_device_t
*dev
, drm_buf_t
*buf
,
760 unsigned int dstorg
, unsigned int length
)
762 drm_mga_private_t
*dev_priv
= dev
->dev_private
;
763 drm_mga_buf_priv_t
*buf_priv
= buf
->dev_private
;
764 drm_mga_context_regs_t
*ctx
= &dev_priv
->sarea_priv
->context_state
;
765 u32 srcorg
= buf
->bus_address
| dev_priv
->dma_access
| MGA_SRCMAP_SYSMEM
;
768 DRM_DEBUG( "buf=%d used=%d\n", buf
->idx
, buf
->used
);
774 DMA_BLOCK( MGA_DMAPAD
, 0x00000000,
775 MGA_DMAPAD
, 0x00000000,
776 MGA_DWGSYNC
, 0x00007100,
777 MGA_DWGSYNC
, 0x00007000 );
779 DMA_BLOCK( MGA_DSTORG
, dstorg
,
780 MGA_MACCESS
, 0x00000000,
784 DMA_BLOCK( MGA_PITCH
, 64,
785 MGA_PLNWT
, 0xffffffff,
786 MGA_DMAPAD
, 0x00000000,
787 MGA_DWGCTL
, MGA_DWGCTL_COPY
);
789 DMA_BLOCK( MGA_AR0
, 63,
791 MGA_FXBNDRY
, (63 << 16) | 0,
792 MGA_YDSTLEN
+ MGA_EXEC
, y2
);
794 DMA_BLOCK( MGA_PLNWT
, ctx
->plnwt
,
795 MGA_SRCORG
, dev_priv
->front_offset
,
796 MGA_PITCH
, dev_priv
->front_pitch
,
797 MGA_DWGSYNC
, 0x00007000 );
801 AGE_BUFFER( buf_priv
);
805 buf_priv
->dispatched
= 0;
807 mga_freelist_put( dev
, buf
);
812 static void mga_dma_dispatch_blit( drm_device_t
*dev
,
813 drm_mga_blit_t
*blit
)
815 drm_mga_private_t
*dev_priv
= dev
->dev_private
;
816 drm_mga_sarea_t
*sarea_priv
= dev_priv
->sarea_priv
;
817 drm_mga_context_regs_t
*ctx
= &sarea_priv
->context_state
;
818 drm_clip_rect_t
*pbox
= sarea_priv
->boxes
;
819 int nbox
= sarea_priv
->nbox
;
824 BEGIN_DMA( 4 + nbox
);
826 DMA_BLOCK( MGA_DMAPAD
, 0x00000000,
827 MGA_DMAPAD
, 0x00000000,
828 MGA_DWGSYNC
, 0x00007100,
829 MGA_DWGSYNC
, 0x00007000 );
831 DMA_BLOCK( MGA_DWGCTL
, MGA_DWGCTL_COPY
,
832 MGA_PLNWT
, blit
->planemask
,
833 MGA_SRCORG
, blit
->srcorg
,
834 MGA_DSTORG
, blit
->dstorg
);
836 DMA_BLOCK( MGA_SGN
, scandir
,
837 MGA_MACCESS
, dev_priv
->maccess
,
838 MGA_AR5
, blit
->ydir
* blit
->src_pitch
,
839 MGA_PITCH
, blit
->dst_pitch
);
841 for ( i
= 0 ; i
< nbox
; i
++ ) {
842 int srcx
= pbox
[i
].x1
+ blit
->delta_sx
;
843 int srcy
= pbox
[i
].y1
+ blit
->delta_sy
;
844 int dstx
= pbox
[i
].x1
+ blit
->delta_dx
;
845 int dsty
= pbox
[i
].y1
+ blit
->delta_dy
;
846 int h
= pbox
[i
].y2
- pbox
[i
].y1
;
847 int w
= pbox
[i
].x2
- pbox
[i
].x1
- 1;
850 if ( blit
->ydir
== -1 ) {
851 srcy
= blit
->height
- srcy
- 1;
854 start
= srcy
* blit
->src_pitch
+ srcx
;
856 DMA_BLOCK( MGA_AR0
, start
+ w
,
858 MGA_FXBNDRY
, ((dstx
+ w
) << 16) | (dstx
& 0xffff),
859 MGA_YDSTLEN
+ MGA_EXEC
, (dsty
<< 16) | h
);
862 /* Do something to flush AGP?
865 /* Force reset of DWGCTL */
866 DMA_BLOCK( MGA_DMAPAD
, 0x00000000,
867 MGA_PLNWT
, ctx
->plnwt
,
868 MGA_PITCH
, dev_priv
->front_pitch
,
869 MGA_DWGCTL
, ctx
->dwgctl
);
875 /* ================================================================
879 static int mga_dma_clear( DRM_IOCTL_ARGS
)
882 drm_mga_private_t
*dev_priv
= dev
->dev_private
;
883 drm_mga_sarea_t
*sarea_priv
= dev_priv
->sarea_priv
;
884 drm_mga_clear_t clear
;
886 LOCK_TEST_WITH_RETURN( dev
, filp
);
888 DRM_COPY_FROM_USER_IOCTL( clear
, (drm_mga_clear_t __user
*)data
, sizeof(clear
) );
890 if ( sarea_priv
->nbox
> MGA_NR_SAREA_CLIPRECTS
)
891 sarea_priv
->nbox
= MGA_NR_SAREA_CLIPRECTS
;
893 WRAP_TEST_WITH_RETURN( dev_priv
);
895 mga_dma_dispatch_clear( dev
, &clear
);
897 /* Make sure we restore the 3D state next time.
899 dev_priv
->sarea_priv
->dirty
|= MGA_UPLOAD_CONTEXT
;
904 static int mga_dma_swap( DRM_IOCTL_ARGS
)
907 drm_mga_private_t
*dev_priv
= dev
->dev_private
;
908 drm_mga_sarea_t
*sarea_priv
= dev_priv
->sarea_priv
;
910 LOCK_TEST_WITH_RETURN( dev
, filp
);
912 if ( sarea_priv
->nbox
> MGA_NR_SAREA_CLIPRECTS
)
913 sarea_priv
->nbox
= MGA_NR_SAREA_CLIPRECTS
;
915 WRAP_TEST_WITH_RETURN( dev_priv
);
917 mga_dma_dispatch_swap( dev
);
919 /* Make sure we restore the 3D state next time.
921 dev_priv
->sarea_priv
->dirty
|= MGA_UPLOAD_CONTEXT
;
926 static int mga_dma_vertex( DRM_IOCTL_ARGS
)
929 drm_mga_private_t
*dev_priv
= dev
->dev_private
;
930 drm_device_dma_t
*dma
= dev
->dma
;
932 drm_mga_buf_priv_t
*buf_priv
;
933 drm_mga_vertex_t vertex
;
935 LOCK_TEST_WITH_RETURN( dev
, filp
);
937 DRM_COPY_FROM_USER_IOCTL( vertex
,
938 (drm_mga_vertex_t __user
*)data
,
941 if(vertex
.idx
< 0 || vertex
.idx
> dma
->buf_count
) return DRM_ERR(EINVAL
);
942 buf
= dma
->buflist
[vertex
.idx
];
943 buf_priv
= buf
->dev_private
;
945 buf
->used
= vertex
.used
;
946 buf_priv
->discard
= vertex
.discard
;
948 if ( !mga_verify_state( dev_priv
) ) {
949 if ( vertex
.discard
) {
950 if ( buf_priv
->dispatched
== 1 )
951 AGE_BUFFER( buf_priv
);
952 buf_priv
->dispatched
= 0;
953 mga_freelist_put( dev
, buf
);
955 return DRM_ERR(EINVAL
);
958 WRAP_TEST_WITH_RETURN( dev_priv
);
960 mga_dma_dispatch_vertex( dev
, buf
);
965 static int mga_dma_indices( DRM_IOCTL_ARGS
)
968 drm_mga_private_t
*dev_priv
= dev
->dev_private
;
969 drm_device_dma_t
*dma
= dev
->dma
;
971 drm_mga_buf_priv_t
*buf_priv
;
972 drm_mga_indices_t indices
;
974 LOCK_TEST_WITH_RETURN( dev
, filp
);
976 DRM_COPY_FROM_USER_IOCTL( indices
,
977 (drm_mga_indices_t __user
*)data
,
980 if(indices
.idx
< 0 || indices
.idx
> dma
->buf_count
) return DRM_ERR(EINVAL
);
982 buf
= dma
->buflist
[indices
.idx
];
983 buf_priv
= buf
->dev_private
;
985 buf_priv
->discard
= indices
.discard
;
987 if ( !mga_verify_state( dev_priv
) ) {
988 if ( indices
.discard
) {
989 if ( buf_priv
->dispatched
== 1 )
990 AGE_BUFFER( buf_priv
);
991 buf_priv
->dispatched
= 0;
992 mga_freelist_put( dev
, buf
);
994 return DRM_ERR(EINVAL
);
997 WRAP_TEST_WITH_RETURN( dev_priv
);
999 mga_dma_dispatch_indices( dev
, buf
, indices
.start
, indices
.end
);
1004 static int mga_dma_iload( DRM_IOCTL_ARGS
)
1007 drm_device_dma_t
*dma
= dev
->dma
;
1008 drm_mga_private_t
*dev_priv
= dev
->dev_private
;
1010 drm_mga_buf_priv_t
*buf_priv
;
1011 drm_mga_iload_t iload
;
1014 LOCK_TEST_WITH_RETURN( dev
, filp
);
1016 DRM_COPY_FROM_USER_IOCTL( iload
, (drm_mga_iload_t __user
*)data
, sizeof(iload
) );
1019 if ( mga_do_wait_for_idle( dev_priv
) < 0 ) {
1020 if ( MGA_DMA_DEBUG
)
1021 DRM_INFO( "%s: -EBUSY\n", __FUNCTION__
);
1022 return DRM_ERR(EBUSY
);
1025 if(iload
.idx
< 0 || iload
.idx
> dma
->buf_count
) return DRM_ERR(EINVAL
);
1027 buf
= dma
->buflist
[iload
.idx
];
1028 buf_priv
= buf
->dev_private
;
1030 if ( mga_verify_iload( dev_priv
, iload
.dstorg
, iload
.length
) ) {
1031 mga_freelist_put( dev
, buf
);
1032 return DRM_ERR(EINVAL
);
1035 WRAP_TEST_WITH_RETURN( dev_priv
);
1037 mga_dma_dispatch_iload( dev
, buf
, iload
.dstorg
, iload
.length
);
1039 /* Make sure we restore the 3D state next time.
1041 dev_priv
->sarea_priv
->dirty
|= MGA_UPLOAD_CONTEXT
;
1046 static int mga_dma_blit( DRM_IOCTL_ARGS
)
1049 drm_mga_private_t
*dev_priv
= dev
->dev_private
;
1050 drm_mga_sarea_t
*sarea_priv
= dev_priv
->sarea_priv
;
1051 drm_mga_blit_t blit
;
1054 LOCK_TEST_WITH_RETURN( dev
, filp
);
1056 DRM_COPY_FROM_USER_IOCTL( blit
, (drm_mga_blit_t __user
*)data
, sizeof(blit
) );
1058 if ( sarea_priv
->nbox
> MGA_NR_SAREA_CLIPRECTS
)
1059 sarea_priv
->nbox
= MGA_NR_SAREA_CLIPRECTS
;
1061 if ( mga_verify_blit( dev_priv
, blit
.srcorg
, blit
.dstorg
) )
1062 return DRM_ERR(EINVAL
);
1064 WRAP_TEST_WITH_RETURN( dev_priv
);
1066 mga_dma_dispatch_blit( dev
, &blit
);
1068 /* Make sure we restore the 3D state next time.
1070 dev_priv
->sarea_priv
->dirty
|= MGA_UPLOAD_CONTEXT
;
1075 static int mga_getparam( DRM_IOCTL_ARGS
)
1078 drm_mga_private_t
*dev_priv
= dev
->dev_private
;
1079 drm_mga_getparam_t param
;
1083 DRM_ERROR( "%s called with no initialization\n", __FUNCTION__
);
1084 return DRM_ERR(EINVAL
);
1087 DRM_COPY_FROM_USER_IOCTL( param
, (drm_mga_getparam_t __user
*)data
,
1090 DRM_DEBUG( "pid=%d\n", DRM_CURRENTPID
);
1092 switch( param
.param
) {
1093 case MGA_PARAM_IRQ_NR
:
1096 case MGA_PARAM_CARD_TYPE
:
1097 value
= dev_priv
->chipset
;
1100 return DRM_ERR(EINVAL
);
1103 if ( DRM_COPY_TO_USER( param
.value
, &value
, sizeof(int) ) ) {
1104 DRM_ERROR( "copy_to_user\n" );
1105 return DRM_ERR(EFAULT
);
1111 static int mga_set_fence(DRM_IOCTL_ARGS
)
1114 drm_mga_private_t
*dev_priv
= dev
->dev_private
;
1119 DRM_ERROR("%s called with no initialization\n", __FUNCTION__
);
1120 return DRM_ERR(EINVAL
);
1123 DRM_DEBUG("pid=%d\n", DRM_CURRENTPID
);
1125 /* I would normal do this assignment in the declaration of temp,
1126 * but dev_priv may be NULL.
1129 temp
= dev_priv
->next_fence_to_post
;
1130 dev_priv
->next_fence_to_post
++;
1133 DMA_BLOCK(MGA_DMAPAD
, 0x00000000,
1134 MGA_DMAPAD
, 0x00000000,
1135 MGA_DMAPAD
, 0x00000000,
1136 MGA_SOFTRAP
, 0x00000000);
1139 if (DRM_COPY_TO_USER( (u32 __user
*) data
, & temp
, sizeof(u32
))) {
1140 DRM_ERROR("copy_to_user\n");
1141 return DRM_ERR(EFAULT
);
1147 static int mga_wait_fence(DRM_IOCTL_ARGS
)
1150 drm_mga_private_t
*dev_priv
= dev
->dev_private
;
1154 DRM_ERROR("%s called with no initialization\n", __FUNCTION__
);
1155 return DRM_ERR(EINVAL
);
1158 DRM_COPY_FROM_USER_IOCTL(fence
, (u32 __user
*) data
, sizeof(u32
));
1160 DRM_DEBUG("pid=%d\n", DRM_CURRENTPID
);
1162 mga_driver_fence_wait(dev
, & fence
);
1164 if (DRM_COPY_TO_USER( (u32 __user
*) data
, & fence
, sizeof(u32
))) {
1165 DRM_ERROR("copy_to_user\n");
1166 return DRM_ERR(EFAULT
);
1172 drm_ioctl_desc_t mga_ioctls
[] = {
1173 [DRM_IOCTL_NR(DRM_MGA_INIT
)] = {mga_dma_init
, 1, 1},
1174 [DRM_IOCTL_NR(DRM_MGA_FLUSH
)] = {mga_dma_flush
, 1, 0},
1175 [DRM_IOCTL_NR(DRM_MGA_RESET
)] = {mga_dma_reset
, 1, 0},
1176 [DRM_IOCTL_NR(DRM_MGA_SWAP
)] = {mga_dma_swap
, 1, 0},
1177 [DRM_IOCTL_NR(DRM_MGA_CLEAR
)] = {mga_dma_clear
, 1, 0},
1178 [DRM_IOCTL_NR(DRM_MGA_VERTEX
)] = {mga_dma_vertex
, 1, 0},
1179 [DRM_IOCTL_NR(DRM_MGA_INDICES
)] = {mga_dma_indices
, 1, 0},
1180 [DRM_IOCTL_NR(DRM_MGA_ILOAD
)] = {mga_dma_iload
, 1, 0},
1181 [DRM_IOCTL_NR(DRM_MGA_BLIT
)] = {mga_dma_blit
, 1, 0},
1182 [DRM_IOCTL_NR(DRM_MGA_GETPARAM
)] = {mga_getparam
, 1, 0},
1183 [DRM_IOCTL_NR(DRM_MGA_SET_FENCE
)] = {mga_set_fence
, 1, 0},
1184 [DRM_IOCTL_NR(DRM_MGA_WAIT_FENCE
)] = {mga_wait_fence
, 1, 0},
1185 [DRM_IOCTL_NR(DRM_MGA_DMA_BOOTSTRAP
)] = {mga_dma_bootstrap
, 1, 1},
1189 int mga_max_ioctl
= DRM_ARRAY_SIZE(mga_ioctls
);