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Linux-2.6.12-rc2
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / char / drm / i830_dma.c
blob98adccf8e4341f748adf70255c15fb6cf91f93ff
1 /* i830_dma.c -- DMA support for the I830 -*- linux-c -*-
2 * Created: Mon Dec 13 01:50:01 1999 by jhartmann@precisioninsight.com
3 *
4 * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
5 * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
6 * All Rights Reserved.
7 *
8 * Permission is hereby granted, free of charge, to any person obtaining a
9 * copy of this software and associated documentation files (the "Software"),
10 * to deal in the Software without restriction, including without limitation
11 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
12 * and/or sell copies of the Software, and to permit persons to whom the
13 * Software is furnished to do so, subject to the following conditions:
14 *
15 * The above copyright notice and this permission notice (including the next
16 * paragraph) shall be included in all copies or substantial portions of the
17 * Software.
18 *
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
20 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
21 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
22 * PRECISION INSIGHT 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 OTHER
25 * DEALINGS IN THE SOFTWARE.
26 *
27 * Authors: Rickard E. (Rik) Faith <faith@valinux.com>
28 * Jeff Hartmann <jhartmann@valinux.com>
29 * Keith Whitwell <keith@tungstengraphics.com>
30 * Abraham vd Merwe <abraham@2d3d.co.za>
31 *
32 */
33
34 #include "drmP.h"
35 #include "drm.h"
36 #include "i830_drm.h"
37 #include "i830_drv.h"
38 #include <linux/interrupt.h> /* For task queue support */
39 #include <linux/pagemap.h> /* For FASTCALL on unlock_page() */
40 #include <linux/delay.h>
41 #include <asm/uaccess.h>
42
43 #define I830_BUF_FREE 2
44 #define I830_BUF_CLIENT 1
45 #define I830_BUF_HARDWARE 0
46
47 #define I830_BUF_UNMAPPED 0
48 #define I830_BUF_MAPPED 1
49
50 #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,4,2)
51 #define down_write down
52 #define up_write up
53 #endif
54
55 static drm_buf_t *i830_freelist_get(drm_device_t *dev)
56 {
57 drm_device_dma_t *dma = dev->dma;
58 int i;
59 int used;
60
61 /* Linear search might not be the best solution */
62
63 for (i = 0; i < dma->buf_count; i++) {
64 drm_buf_t *buf = dma->buflist[ i ];
65 drm_i830_buf_priv_t *buf_priv = buf->dev_private;
66 /* In use is already a pointer */
67 used = cmpxchg(buf_priv->in_use, I830_BUF_FREE,
68 I830_BUF_CLIENT);
69 if(used == I830_BUF_FREE) {
70 return buf;
71 }
72 }
73 return NULL;
74 }
75
76 /* This should only be called if the buffer is not sent to the hardware
77 * yet, the hardware updates in use for us once its on the ring buffer.
78 */
79
80 static int i830_freelist_put(drm_device_t *dev, drm_buf_t *buf)
81 {
82 drm_i830_buf_priv_t *buf_priv = buf->dev_private;
83 int used;
84
85 /* In use is already a pointer */
86 used = cmpxchg(buf_priv->in_use, I830_BUF_CLIENT, I830_BUF_FREE);
87 if(used != I830_BUF_CLIENT) {
88 DRM_ERROR("Freeing buffer thats not in use : %d\n", buf->idx);
89 return -EINVAL;
90 }
91
92 return 0;
93 }
94
95 static struct file_operations i830_buffer_fops = {
96 .open = drm_open,
97 .flush = drm_flush,
98 .release = drm_release,
99 .ioctl = drm_ioctl,
100 .mmap = i830_mmap_buffers,
101 .fasync = drm_fasync,
102 };
103
104 int i830_mmap_buffers(struct file *filp, struct vm_area_struct *vma)
105 {
106 drm_file_t *priv = filp->private_data;
107 drm_device_t *dev;
108 drm_i830_private_t *dev_priv;
109 drm_buf_t *buf;
110 drm_i830_buf_priv_t *buf_priv;
111
112 lock_kernel();
113 dev = priv->head->dev;
114 dev_priv = dev->dev_private;
115 buf = dev_priv->mmap_buffer;
116 buf_priv = buf->dev_private;
117
118 vma->vm_flags |= (VM_IO | VM_DONTCOPY);
119 vma->vm_file = filp;
120
121 buf_priv->currently_mapped = I830_BUF_MAPPED;
122 unlock_kernel();
123
124 if (io_remap_pfn_range(vma, vma->vm_start,
125 VM_OFFSET(vma) >> PAGE_SHIFT,
126 vma->vm_end - vma->vm_start,
127 vma->vm_page_prot)) return -EAGAIN;
128 return 0;
129 }
130
131 static int i830_map_buffer(drm_buf_t *buf, struct file *filp)
132 {
133 drm_file_t *priv = filp->private_data;
134 drm_device_t *dev = priv->head->dev;
135 drm_i830_buf_priv_t *buf_priv = buf->dev_private;
136 drm_i830_private_t *dev_priv = dev->dev_private;
137 struct file_operations *old_fops;
138 unsigned long virtual;
139 int retcode = 0;
140
141 if(buf_priv->currently_mapped == I830_BUF_MAPPED) return -EINVAL;
142
143 down_write( &current->mm->mmap_sem );
144 old_fops = filp->f_op;
145 filp->f_op = &i830_buffer_fops;
146 dev_priv->mmap_buffer = buf;
147 virtual = do_mmap(filp, 0, buf->total, PROT_READ|PROT_WRITE,
148 MAP_SHARED, buf->bus_address);
149 dev_priv->mmap_buffer = NULL;
150 filp->f_op = old_fops;
151 if (IS_ERR((void *)virtual)) { /* ugh */
152 /* Real error */
153 DRM_ERROR("mmap error\n");
154 retcode = virtual;
155 buf_priv->virtual = NULL;
156 } else {
157 buf_priv->virtual = (void __user *)virtual;
158 }
159 up_write( &current->mm->mmap_sem );
160
161 return retcode;
162 }
163
164 static int i830_unmap_buffer(drm_buf_t *buf)
165 {
166 drm_i830_buf_priv_t *buf_priv = buf->dev_private;
167 int retcode = 0;
168
169 if(buf_priv->currently_mapped != I830_BUF_MAPPED)
170 return -EINVAL;
171
172 down_write(&current->mm->mmap_sem);
173 retcode = do_munmap(current->mm,
174 (unsigned long)buf_priv->virtual,
175 (size_t) buf->total);
176 up_write(&current->mm->mmap_sem);
177
178 buf_priv->currently_mapped = I830_BUF_UNMAPPED;
179 buf_priv->virtual = NULL;
180
181 return retcode;
182 }
183
184 static int i830_dma_get_buffer(drm_device_t *dev, drm_i830_dma_t *d,
185 struct file *filp)
186 {
187 drm_buf_t *buf;
188 drm_i830_buf_priv_t *buf_priv;
189 int retcode = 0;
190
191 buf = i830_freelist_get(dev);
192 if (!buf) {
193 retcode = -ENOMEM;
194 DRM_DEBUG("retcode=%d\n", retcode);
195 return retcode;
196 }
197
198 retcode = i830_map_buffer(buf, filp);
199 if(retcode) {
200 i830_freelist_put(dev, buf);
201 DRM_ERROR("mapbuf failed, retcode %d\n", retcode);
202 return retcode;
203 }
204 buf->filp = filp;
205 buf_priv = buf->dev_private;
206 d->granted = 1;
207 d->request_idx = buf->idx;
208 d->request_size = buf->total;
209 d->virtual = buf_priv->virtual;
210
211 return retcode;
212 }
213
214 static int i830_dma_cleanup(drm_device_t *dev)
215 {
216 drm_device_dma_t *dma = dev->dma;
217
218 /* Make sure interrupts are disabled here because the uninstall ioctl
219 * may not have been called from userspace and after dev_private
220 * is freed, it's too late.
221 */
222 if ( dev->irq_enabled ) drm_irq_uninstall(dev);
223
224 if (dev->dev_private) {
225 int i;
226 drm_i830_private_t *dev_priv =
227 (drm_i830_private_t *) dev->dev_private;
228
229 if (dev_priv->ring.virtual_start) {
230 drm_ioremapfree((void *) dev_priv->ring.virtual_start,
231 dev_priv->ring.Size, dev);
232 }
233 if (dev_priv->hw_status_page) {
234 pci_free_consistent(dev->pdev, PAGE_SIZE,
235 dev_priv->hw_status_page,
236 dev_priv->dma_status_page);
237 /* Need to rewrite hardware status page */
238 I830_WRITE(0x02080, 0x1ffff000);
239 }
240
241 drm_free(dev->dev_private, sizeof(drm_i830_private_t),
242 DRM_MEM_DRIVER);
243 dev->dev_private = NULL;
244
245 for (i = 0; i < dma->buf_count; i++) {
246 drm_buf_t *buf = dma->buflist[ i ];
247 drm_i830_buf_priv_t *buf_priv = buf->dev_private;
248 if ( buf_priv->kernel_virtual && buf->total )
249 drm_ioremapfree(buf_priv->kernel_virtual, buf->total, dev);
250 }
251 }
252 return 0;
253 }
254
255 int i830_wait_ring(drm_device_t *dev, int n, const char *caller)
256 {
257 drm_i830_private_t *dev_priv = dev->dev_private;
258 drm_i830_ring_buffer_t *ring = &(dev_priv->ring);
259 int iters = 0;
260 unsigned long end;
261 unsigned int last_head = I830_READ(LP_RING + RING_HEAD) & HEAD_ADDR;
262
263 end = jiffies + (HZ*3);
264 while (ring->space < n) {
265 ring->head = I830_READ(LP_RING + RING_HEAD) & HEAD_ADDR;
266 ring->space = ring->head - (ring->tail+8);
267 if (ring->space < 0) ring->space += ring->Size;
268
269 if (ring->head != last_head) {
270 end = jiffies + (HZ*3);
271 last_head = ring->head;
272 }
273
274 iters++;
275 if(time_before(end, jiffies)) {
276 DRM_ERROR("space: %d wanted %d\n", ring->space, n);
277 DRM_ERROR("lockup\n");
278 goto out_wait_ring;
279 }
280 udelay(1);
281 dev_priv->sarea_priv->perf_boxes |= I830_BOX_WAIT;
282 }
283
284 out_wait_ring:
285 return iters;
286 }
287
288 static void i830_kernel_lost_context(drm_device_t *dev)
289 {
290 drm_i830_private_t *dev_priv = dev->dev_private;
291 drm_i830_ring_buffer_t *ring = &(dev_priv->ring);
292
293 ring->head = I830_READ(LP_RING + RING_HEAD) & HEAD_ADDR;
294 ring->tail = I830_READ(LP_RING + RING_TAIL) & TAIL_ADDR;
295 ring->space = ring->head - (ring->tail+8);
296 if (ring->space < 0) ring->space += ring->Size;
297
298 if (ring->head == ring->tail)
299 dev_priv->sarea_priv->perf_boxes |= I830_BOX_RING_EMPTY;
300 }
301
302 static int i830_freelist_init(drm_device_t *dev, drm_i830_private_t *dev_priv)
303 {
304 drm_device_dma_t *dma = dev->dma;
305 int my_idx = 36;
306 u32 *hw_status = (u32 *)(dev_priv->hw_status_page + my_idx);
307 int i;
308
309 if(dma->buf_count > 1019) {
310 /* Not enough space in the status page for the freelist */
311 return -EINVAL;
312 }
313
314 for (i = 0; i < dma->buf_count; i++) {
315 drm_buf_t *buf = dma->buflist[ i ];
316 drm_i830_buf_priv_t *buf_priv = buf->dev_private;
317
318 buf_priv->in_use = hw_status++;
319 buf_priv->my_use_idx = my_idx;
320 my_idx += 4;
321
322 *buf_priv->in_use = I830_BUF_FREE;
323
324 buf_priv->kernel_virtual = drm_ioremap(buf->bus_address,
325 buf->total, dev);
326 }
327 return 0;
328 }
329
330 static int i830_dma_initialize(drm_device_t *dev,
331 drm_i830_private_t *dev_priv,
332 drm_i830_init_t *init)
333 {
334 struct list_head *list;
335
336 memset(dev_priv, 0, sizeof(drm_i830_private_t));
337
338 list_for_each(list, &dev->maplist->head) {
339 drm_map_list_t *r_list = list_entry(list, drm_map_list_t, head);
340 if( r_list->map &&
341 r_list->map->type == _DRM_SHM &&
342 r_list->map->flags & _DRM_CONTAINS_LOCK ) {
343 dev_priv->sarea_map = r_list->map;
344 break;
345 }
346 }
347
348 if(!dev_priv->sarea_map) {
349 dev->dev_private = (void *)dev_priv;
350 i830_dma_cleanup(dev);
351 DRM_ERROR("can not find sarea!\n");
352 return -EINVAL;
353 }
354 dev_priv->mmio_map = drm_core_findmap(dev, init->mmio_offset);
355 if(!dev_priv->mmio_map) {
356 dev->dev_private = (void *)dev_priv;
357 i830_dma_cleanup(dev);
358 DRM_ERROR("can not find mmio map!\n");
359 return -EINVAL;
360 }
361 dev->agp_buffer_map = drm_core_findmap(dev, init->buffers_offset);
362 if(!dev->agp_buffer_map) {
363 dev->dev_private = (void *)dev_priv;
364 i830_dma_cleanup(dev);
365 DRM_ERROR("can not find dma buffer map!\n");
366 return -EINVAL;
367 }
368
369 dev_priv->sarea_priv = (drm_i830_sarea_t *)
370 ((u8 *)dev_priv->sarea_map->handle +
371 init->sarea_priv_offset);
372
373 dev_priv->ring.Start = init->ring_start;
374 dev_priv->ring.End = init->ring_end;
375 dev_priv->ring.Size = init->ring_size;
376
377 dev_priv->ring.virtual_start = drm_ioremap(dev->agp->base +
378 init->ring_start,
379 init->ring_size, dev);
380
381 if (dev_priv->ring.virtual_start == NULL) {
382 dev->dev_private = (void *) dev_priv;
383 i830_dma_cleanup(dev);
384 DRM_ERROR("can not ioremap virtual address for"
385 " ring buffer\n");
386 return -ENOMEM;
387 }
388
389 dev_priv->ring.tail_mask = dev_priv->ring.Size - 1;
390
391 dev_priv->w = init->w;
392 dev_priv->h = init->h;
393 dev_priv->pitch = init->pitch;
394 dev_priv->back_offset = init->back_offset;
395 dev_priv->depth_offset = init->depth_offset;
396 dev_priv->front_offset = init->front_offset;
397
398 dev_priv->front_di1 = init->front_offset | init->pitch_bits;
399 dev_priv->back_di1 = init->back_offset | init->pitch_bits;
400 dev_priv->zi1 = init->depth_offset | init->pitch_bits;
401
402 DRM_DEBUG("front_di1 %x\n", dev_priv->front_di1);
403 DRM_DEBUG("back_offset %x\n", dev_priv->back_offset);
404 DRM_DEBUG("back_di1 %x\n", dev_priv->back_di1);
405 DRM_DEBUG("pitch_bits %x\n", init->pitch_bits);
406
407 dev_priv->cpp = init->cpp;
408 /* We are using separate values as placeholders for mechanisms for
409 * private backbuffer/depthbuffer usage.
410 */
411
412 dev_priv->back_pitch = init->back_pitch;
413 dev_priv->depth_pitch = init->depth_pitch;
414 dev_priv->do_boxes = 0;
415 dev_priv->use_mi_batchbuffer_start = 0;
416
417 /* Program Hardware Status Page */
418 dev_priv->hw_status_page =
419 pci_alloc_consistent(dev->pdev, PAGE_SIZE,
420 &dev_priv->dma_status_page);
421 if (!dev_priv->hw_status_page) {
422 dev->dev_private = (void *)dev_priv;
423 i830_dma_cleanup(dev);
424 DRM_ERROR("Can not allocate hardware status page\n");
425 return -ENOMEM;
426 }
427 memset(dev_priv->hw_status_page, 0, PAGE_SIZE);
428 DRM_DEBUG("hw status page @ %p\n", dev_priv->hw_status_page);
429
430 I830_WRITE(0x02080, dev_priv->dma_status_page);
431 DRM_DEBUG("Enabled hardware status page\n");
432
433 /* Now we need to init our freelist */
434 if(i830_freelist_init(dev, dev_priv) != 0) {
435 dev->dev_private = (void *)dev_priv;
436 i830_dma_cleanup(dev);
437 DRM_ERROR("Not enough space in the status page for"
438 " the freelist\n");
439 return -ENOMEM;
440 }
441 dev->dev_private = (void *)dev_priv;
442
443 return 0;
444 }
445
446 static int i830_dma_init(struct inode *inode, struct file *filp,
447 unsigned int cmd, unsigned long arg)
448 {
449 drm_file_t *priv = filp->private_data;
450 drm_device_t *dev = priv->head->dev;
451 drm_i830_private_t *dev_priv;
452 drm_i830_init_t init;
453 int retcode = 0;
454
455 if (copy_from_user(&init, (void * __user) arg, sizeof(init)))
456 return -EFAULT;
457
458 switch(init.func) {
459 case I830_INIT_DMA:
460 dev_priv = drm_alloc(sizeof(drm_i830_private_t),
461 DRM_MEM_DRIVER);
462 if(dev_priv == NULL) return -ENOMEM;
463 retcode = i830_dma_initialize(dev, dev_priv, &init);
464 break;
465 case I830_CLEANUP_DMA:
466 retcode = i830_dma_cleanup(dev);
467 break;
468 default:
469 retcode = -EINVAL;
470 break;
471 }
472
473 return retcode;
474 }
475
476 #define GFX_OP_STIPPLE ((0x3<<29)|(0x1d<<24)|(0x83<<16))
477 #define ST1_ENABLE (1<<16)
478 #define ST1_MASK (0xffff)
479
480 /* Most efficient way to verify state for the i830 is as it is
481 * emitted. Non-conformant state is silently dropped.
482 */
483 static void i830EmitContextVerified( drm_device_t *dev,
484 unsigned int *code )
485 {
486 drm_i830_private_t *dev_priv = dev->dev_private;
487 int i, j = 0;
488 unsigned int tmp;
489 RING_LOCALS;
490
491 BEGIN_LP_RING( I830_CTX_SETUP_SIZE + 4 );
492
493 for ( i = 0 ; i < I830_CTXREG_BLENDCOLR0 ; i++ ) {
494 tmp = code[i];
495 if ((tmp & (7<<29)) == CMD_3D &&
496 (tmp & (0x1f<<24)) < (0x1d<<24)) {
497 OUT_RING( tmp );
498 j++;
499 } else {
500 DRM_ERROR("Skipping %d\n", i);
501 }
502 }
503
504 OUT_RING( STATE3D_CONST_BLEND_COLOR_CMD );
505 OUT_RING( code[I830_CTXREG_BLENDCOLR] );
506 j += 2;
507
508 for ( i = I830_CTXREG_VF ; i < I830_CTXREG_MCSB0 ; i++ ) {
509 tmp = code[i];
510 if ((tmp & (7<<29)) == CMD_3D &&
511 (tmp & (0x1f<<24)) < (0x1d<<24)) {
512 OUT_RING( tmp );
513 j++;
514 } else {
515 DRM_ERROR("Skipping %d\n", i);
516 }
517 }
518
519 OUT_RING( STATE3D_MAP_COORD_SETBIND_CMD );
520 OUT_RING( code[I830_CTXREG_MCSB1] );
521 j += 2;
522
523 if (j & 1)
524 OUT_RING( 0 );
525
526 ADVANCE_LP_RING();
527 }
528
529 static void i830EmitTexVerified( drm_device_t *dev, unsigned int *code )
530 {
531 drm_i830_private_t *dev_priv = dev->dev_private;
532 int i, j = 0;
533 unsigned int tmp;
534 RING_LOCALS;
535
536 if (code[I830_TEXREG_MI0] == GFX_OP_MAP_INFO ||
537 (code[I830_TEXREG_MI0] & ~(0xf*LOAD_TEXTURE_MAP0)) ==
538 (STATE3D_LOAD_STATE_IMMEDIATE_2|4)) {
539
540 BEGIN_LP_RING( I830_TEX_SETUP_SIZE );
541
542 OUT_RING( code[I830_TEXREG_MI0] ); /* TM0LI */
543 OUT_RING( code[I830_TEXREG_MI1] ); /* TM0S0 */
544 OUT_RING( code[I830_TEXREG_MI2] ); /* TM0S1 */
545 OUT_RING( code[I830_TEXREG_MI3] ); /* TM0S2 */
546 OUT_RING( code[I830_TEXREG_MI4] ); /* TM0S3 */
547 OUT_RING( code[I830_TEXREG_MI5] ); /* TM0S4 */
548
549 for ( i = 6 ; i < I830_TEX_SETUP_SIZE ; i++ ) {
550 tmp = code[i];
551 OUT_RING( tmp );
552 j++;
553 }
554
555 if (j & 1)
556 OUT_RING( 0 );
557
558 ADVANCE_LP_RING();
559 }
560 else
561 printk("rejected packet %x\n", code[0]);
562 }
563
564 static void i830EmitTexBlendVerified( drm_device_t *dev,
565 unsigned int *code,
566 unsigned int num)
567 {
568 drm_i830_private_t *dev_priv = dev->dev_private;
569 int i, j = 0;
570 unsigned int tmp;
571 RING_LOCALS;
572
573 if (!num)
574 return;
575
576 BEGIN_LP_RING( num + 1 );
577
578 for ( i = 0 ; i < num ; i++ ) {
579 tmp = code[i];
580 OUT_RING( tmp );
581 j++;
582 }
583
584 if (j & 1)
585 OUT_RING( 0 );
586
587 ADVANCE_LP_RING();
588 }
589
590 static void i830EmitTexPalette( drm_device_t *dev,
591 unsigned int *palette,
592 int number,
593 int is_shared )
594 {
595 drm_i830_private_t *dev_priv = dev->dev_private;
596 int i;
597 RING_LOCALS;
598
599 return;
600
601 BEGIN_LP_RING( 258 );
602
603 if(is_shared == 1) {
604 OUT_RING(CMD_OP_MAP_PALETTE_LOAD |
605 MAP_PALETTE_NUM(0) |
606 MAP_PALETTE_BOTH);
607 } else {
608 OUT_RING(CMD_OP_MAP_PALETTE_LOAD | MAP_PALETTE_NUM(number));
609 }
610 for(i = 0; i < 256; i++) {
611 OUT_RING(palette[i]);
612 }
613 OUT_RING(0);
614 /* KW: WHERE IS THE ADVANCE_LP_RING? This is effectively a noop!
615 */
616 }
617
618 /* Need to do some additional checking when setting the dest buffer.
619 */
620 static void i830EmitDestVerified( drm_device_t *dev,
621 unsigned int *code )
622 {
623 drm_i830_private_t *dev_priv = dev->dev_private;
624 unsigned int tmp;
625 RING_LOCALS;
626
627 BEGIN_LP_RING( I830_DEST_SETUP_SIZE + 10 );
628
629
630 tmp = code[I830_DESTREG_CBUFADDR];
631 if (tmp == dev_priv->front_di1 || tmp == dev_priv->back_di1) {
632 if (((int)outring) & 8) {
633 OUT_RING(0);
634 OUT_RING(0);
635 }
636
637 OUT_RING( CMD_OP_DESTBUFFER_INFO );
638 OUT_RING( BUF_3D_ID_COLOR_BACK |
639 BUF_3D_PITCH(dev_priv->back_pitch * dev_priv->cpp) |
640 BUF_3D_USE_FENCE);
641 OUT_RING( tmp );
642 OUT_RING( 0 );
643
644 OUT_RING( CMD_OP_DESTBUFFER_INFO );
645 OUT_RING( BUF_3D_ID_DEPTH | BUF_3D_USE_FENCE |
646 BUF_3D_PITCH(dev_priv->depth_pitch * dev_priv->cpp));
647 OUT_RING( dev_priv->zi1 );
648 OUT_RING( 0 );
649 } else {
650 DRM_ERROR("bad di1 %x (allow %x or %x)\n",
651 tmp, dev_priv->front_di1, dev_priv->back_di1);
652 }
653
654 /* invarient:
655 */
656
657
658 OUT_RING( GFX_OP_DESTBUFFER_VARS );
659 OUT_RING( code[I830_DESTREG_DV1] );
660
661 OUT_RING( GFX_OP_DRAWRECT_INFO );
662 OUT_RING( code[I830_DESTREG_DR1] );
663 OUT_RING( code[I830_DESTREG_DR2] );
664 OUT_RING( code[I830_DESTREG_DR3] );
665 OUT_RING( code[I830_DESTREG_DR4] );
666
667 /* Need to verify this */
668 tmp = code[I830_DESTREG_SENABLE];
669 if((tmp & ~0x3) == GFX_OP_SCISSOR_ENABLE) {
670 OUT_RING( tmp );
671 } else {
672 DRM_ERROR("bad scissor enable\n");
673 OUT_RING( 0 );
674 }
675
676 OUT_RING( GFX_OP_SCISSOR_RECT );
677 OUT_RING( code[I830_DESTREG_SR1] );
678 OUT_RING( code[I830_DESTREG_SR2] );
679 OUT_RING( 0 );
680
681 ADVANCE_LP_RING();
682 }
683
684 static void i830EmitStippleVerified( drm_device_t *dev,
685 unsigned int *code )
686 {
687 drm_i830_private_t *dev_priv = dev->dev_private;
688 RING_LOCALS;
689
690 BEGIN_LP_RING( 2 );
691 OUT_RING( GFX_OP_STIPPLE );
692 OUT_RING( code[1] );
693 ADVANCE_LP_RING();
694 }
695
696
697 static void i830EmitState( drm_device_t *dev )
698 {
699 drm_i830_private_t *dev_priv = dev->dev_private;
700 drm_i830_sarea_t *sarea_priv = dev_priv->sarea_priv;
701 unsigned int dirty = sarea_priv->dirty;
702
703 DRM_DEBUG("%s %x\n", __FUNCTION__, dirty);
704
705 if (dirty & I830_UPLOAD_BUFFERS) {
706 i830EmitDestVerified( dev, sarea_priv->BufferState );
707 sarea_priv->dirty &= ~I830_UPLOAD_BUFFERS;
708 }
709
710 if (dirty & I830_UPLOAD_CTX) {
711 i830EmitContextVerified( dev, sarea_priv->ContextState );
712 sarea_priv->dirty &= ~I830_UPLOAD_CTX;
713 }
714
715 if (dirty & I830_UPLOAD_TEX0) {
716 i830EmitTexVerified( dev, sarea_priv->TexState[0] );
717 sarea_priv->dirty &= ~I830_UPLOAD_TEX0;
718 }
719
720 if (dirty & I830_UPLOAD_TEX1) {
721 i830EmitTexVerified( dev, sarea_priv->TexState[1] );
722 sarea_priv->dirty &= ~I830_UPLOAD_TEX1;
723 }
724
725 if (dirty & I830_UPLOAD_TEXBLEND0) {
726 i830EmitTexBlendVerified( dev, sarea_priv->TexBlendState[0],
727 sarea_priv->TexBlendStateWordsUsed[0]);
728 sarea_priv->dirty &= ~I830_UPLOAD_TEXBLEND0;
729 }
730
731 if (dirty & I830_UPLOAD_TEXBLEND1) {
732 i830EmitTexBlendVerified( dev, sarea_priv->TexBlendState[1],
733 sarea_priv->TexBlendStateWordsUsed[1]);
734 sarea_priv->dirty &= ~I830_UPLOAD_TEXBLEND1;
735 }
736
737 if (dirty & I830_UPLOAD_TEX_PALETTE_SHARED) {
738 i830EmitTexPalette(dev, sarea_priv->Palette[0], 0, 1);
739 } else {
740 if (dirty & I830_UPLOAD_TEX_PALETTE_N(0)) {
741 i830EmitTexPalette(dev, sarea_priv->Palette[0], 0, 0);
742 sarea_priv->dirty &= ~I830_UPLOAD_TEX_PALETTE_N(0);
743 }
744 if (dirty & I830_UPLOAD_TEX_PALETTE_N(1)) {
745 i830EmitTexPalette(dev, sarea_priv->Palette[1], 1, 0);
746 sarea_priv->dirty &= ~I830_UPLOAD_TEX_PALETTE_N(1);
747 }
748
749 /* 1.3:
750 */
751 #if 0
752 if (dirty & I830_UPLOAD_TEX_PALETTE_N(2)) {
753 i830EmitTexPalette(dev, sarea_priv->Palette2[0], 0, 0);
754 sarea_priv->dirty &= ~I830_UPLOAD_TEX_PALETTE_N(2);
755 }
756 if (dirty & I830_UPLOAD_TEX_PALETTE_N(3)) {
757 i830EmitTexPalette(dev, sarea_priv->Palette2[1], 1, 0);
758 sarea_priv->dirty &= ~I830_UPLOAD_TEX_PALETTE_N(2);
759 }
760 #endif
761 }
762
763 /* 1.3:
764 */
765 if (dirty & I830_UPLOAD_STIPPLE) {
766 i830EmitStippleVerified( dev,
767 sarea_priv->StippleState);
768 sarea_priv->dirty &= ~I830_UPLOAD_STIPPLE;
769 }
770
771 if (dirty & I830_UPLOAD_TEX2) {
772 i830EmitTexVerified( dev, sarea_priv->TexState2 );
773 sarea_priv->dirty &= ~I830_UPLOAD_TEX2;
774 }
775
776 if (dirty & I830_UPLOAD_TEX3) {
777 i830EmitTexVerified( dev, sarea_priv->TexState3 );
778 sarea_priv->dirty &= ~I830_UPLOAD_TEX3;
779 }
780
781
782 if (dirty & I830_UPLOAD_TEXBLEND2) {
783 i830EmitTexBlendVerified(
784 dev,
785 sarea_priv->TexBlendState2,
786 sarea_priv->TexBlendStateWordsUsed2);
787
788 sarea_priv->dirty &= ~I830_UPLOAD_TEXBLEND2;
789 }
790
791 if (dirty & I830_UPLOAD_TEXBLEND3) {
792 i830EmitTexBlendVerified(
793 dev,
794 sarea_priv->TexBlendState3,
795 sarea_priv->TexBlendStateWordsUsed3);
796 sarea_priv->dirty &= ~I830_UPLOAD_TEXBLEND3;
797 }
798 }
799
800 /* ================================================================
801 * Performance monitoring functions
802 */
803
804 static void i830_fill_box( drm_device_t *dev,
805 int x, int y, int w, int h,
806 int r, int g, int b )
807 {
808 drm_i830_private_t *dev_priv = dev->dev_private;
809 u32 color;
810 unsigned int BR13, CMD;
811 RING_LOCALS;
812
813 BR13 = (0xF0 << 16) | (dev_priv->pitch * dev_priv->cpp) | (1<<24);
814 CMD = XY_COLOR_BLT_CMD;
815 x += dev_priv->sarea_priv->boxes[0].x1;
816 y += dev_priv->sarea_priv->boxes[0].y1;
817
818 if (dev_priv->cpp == 4) {
819 BR13 |= (1<<25);
820 CMD |= (XY_COLOR_BLT_WRITE_ALPHA | XY_COLOR_BLT_WRITE_RGB);
821 color = (((0xff) << 24) | (r << 16) | (g << 8) | b);
822 } else {
823 color = (((r & 0xf8) << 8) |
824 ((g & 0xfc) << 3) |
825 ((b & 0xf8) >> 3));
826 }
827
828 BEGIN_LP_RING( 6 );
829 OUT_RING( CMD );
830 OUT_RING( BR13 );
831 OUT_RING( (y << 16) | x );
832 OUT_RING( ((y+h) << 16) | (x+w) );
833
834 if ( dev_priv->current_page == 1 ) {
835 OUT_RING( dev_priv->front_offset );
836 } else {
837 OUT_RING( dev_priv->back_offset );
838 }
839
840 OUT_RING( color );
841 ADVANCE_LP_RING();
842 }
843
844 static void i830_cp_performance_boxes( drm_device_t *dev )
845 {
846 drm_i830_private_t *dev_priv = dev->dev_private;
847
848 /* Purple box for page flipping
849 */
850 if ( dev_priv->sarea_priv->perf_boxes & I830_BOX_FLIP )
851 i830_fill_box( dev, 4, 4, 8, 8, 255, 0, 255 );
852
853 /* Red box if we have to wait for idle at any point
854 */
855 if ( dev_priv->sarea_priv->perf_boxes & I830_BOX_WAIT )
856 i830_fill_box( dev, 16, 4, 8, 8, 255, 0, 0 );
857
858 /* Blue box: lost context?
859 */
860 if ( dev_priv->sarea_priv->perf_boxes & I830_BOX_LOST_CONTEXT )
861 i830_fill_box( dev, 28, 4, 8, 8, 0, 0, 255 );
862
863 /* Yellow box for texture swaps
864 */
865 if ( dev_priv->sarea_priv->perf_boxes & I830_BOX_TEXTURE_LOAD )
866 i830_fill_box( dev, 40, 4, 8, 8, 255, 255, 0 );
867
868 /* Green box if hardware never idles (as far as we can tell)
869 */
870 if ( !(dev_priv->sarea_priv->perf_boxes & I830_BOX_RING_EMPTY) )
871 i830_fill_box( dev, 64, 4, 8, 8, 0, 255, 0 );
872
873
874 /* Draw bars indicating number of buffers allocated
875 * (not a great measure, easily confused)
876 */
877 if (dev_priv->dma_used) {
878 int bar = dev_priv->dma_used / 10240;
879 if (bar > 100) bar = 100;
880 if (bar < 1) bar = 1;
881 i830_fill_box( dev, 4, 16, bar, 4, 196, 128, 128 );
882 dev_priv->dma_used = 0;
883 }
884
885 dev_priv->sarea_priv->perf_boxes = 0;
886 }
887
888 static void i830_dma_dispatch_clear( drm_device_t *dev, int flags,
889 unsigned int clear_color,
890 unsigned int clear_zval,
891 unsigned int clear_depthmask)
892 {
893 drm_i830_private_t *dev_priv = dev->dev_private;
894 drm_i830_sarea_t *sarea_priv = dev_priv->sarea_priv;
895 int nbox = sarea_priv->nbox;
896 drm_clip_rect_t *pbox = sarea_priv->boxes;
897 int pitch = dev_priv->pitch;
898 int cpp = dev_priv->cpp;
899 int i;
900 unsigned int BR13, CMD, D_CMD;
901 RING_LOCALS;
902
903
904 if ( dev_priv->current_page == 1 ) {
905 unsigned int tmp = flags;
906
907 flags &= ~(I830_FRONT | I830_BACK);
908 if ( tmp & I830_FRONT ) flags |= I830_BACK;
909 if ( tmp & I830_BACK ) flags |= I830_FRONT;
910 }
911
912 i830_kernel_lost_context(dev);
913
914 switch(cpp) {
915 case 2:
916 BR13 = (0xF0 << 16) | (pitch * cpp) | (1<<24);
917 D_CMD = CMD = XY_COLOR_BLT_CMD;
918 break;
919 case 4:
920 BR13 = (0xF0 << 16) | (pitch * cpp) | (1<<24) | (1<<25);
921 CMD = (XY_COLOR_BLT_CMD | XY_COLOR_BLT_WRITE_ALPHA |
922 XY_COLOR_BLT_WRITE_RGB);
923 D_CMD = XY_COLOR_BLT_CMD;
924 if(clear_depthmask & 0x00ffffff)
925 D_CMD |= XY_COLOR_BLT_WRITE_RGB;
926 if(clear_depthmask & 0xff000000)
927 D_CMD |= XY_COLOR_BLT_WRITE_ALPHA;
928 break;
929 default:
930 BR13 = (0xF0 << 16) | (pitch * cpp) | (1<<24);
931 D_CMD = CMD = XY_COLOR_BLT_CMD;
932 break;
933 }
934
935 if (nbox > I830_NR_SAREA_CLIPRECTS)
936 nbox = I830_NR_SAREA_CLIPRECTS;
937
938 for (i = 0 ; i < nbox ; i++, pbox++) {
939 if (pbox->x1 > pbox->x2 ||
940 pbox->y1 > pbox->y2 ||
941 pbox->x2 > dev_priv->w ||
942 pbox->y2 > dev_priv->h)
943 continue;
944
945 if ( flags & I830_FRONT ) {
946 DRM_DEBUG("clear front\n");
947 BEGIN_LP_RING( 6 );
948 OUT_RING( CMD );
949 OUT_RING( BR13 );
950 OUT_RING( (pbox->y1 << 16) | pbox->x1 );
951 OUT_RING( (pbox->y2 << 16) | pbox->x2 );
952 OUT_RING( dev_priv->front_offset );
953 OUT_RING( clear_color );
954 ADVANCE_LP_RING();
955 }
956
957 if ( flags & I830_BACK ) {
958 DRM_DEBUG("clear back\n");
959 BEGIN_LP_RING( 6 );
960 OUT_RING( CMD );
961 OUT_RING( BR13 );
962 OUT_RING( (pbox->y1 << 16) | pbox->x1 );
963 OUT_RING( (pbox->y2 << 16) | pbox->x2 );
964 OUT_RING( dev_priv->back_offset );
965 OUT_RING( clear_color );
966 ADVANCE_LP_RING();
967 }
968
969 if ( flags & I830_DEPTH ) {
970 DRM_DEBUG("clear depth\n");
971 BEGIN_LP_RING( 6 );
972 OUT_RING( D_CMD );
973 OUT_RING( BR13 );
974 OUT_RING( (pbox->y1 << 16) | pbox->x1 );
975 OUT_RING( (pbox->y2 << 16) | pbox->x2 );
976 OUT_RING( dev_priv->depth_offset );
977 OUT_RING( clear_zval );
978 ADVANCE_LP_RING();
979 }
980 }
981 }
982
983 static void i830_dma_dispatch_swap( drm_device_t *dev )
984 {
985 drm_i830_private_t *dev_priv = dev->dev_private;
986 drm_i830_sarea_t *sarea_priv = dev_priv->sarea_priv;
987 int nbox = sarea_priv->nbox;
988 drm_clip_rect_t *pbox = sarea_priv->boxes;
989 int pitch = dev_priv->pitch;
990 int cpp = dev_priv->cpp;
991 int i;
992 unsigned int CMD, BR13;
993 RING_LOCALS;
994
995 DRM_DEBUG("swapbuffers\n");
996
997 i830_kernel_lost_context(dev);
998
999 if (dev_priv->do_boxes)
1000 i830_cp_performance_boxes( dev );
1001
1002 switch(cpp) {
1003 case 2:
1004 BR13 = (pitch * cpp) | (0xCC << 16) | (1<<24);
1005 CMD = XY_SRC_COPY_BLT_CMD;
1006 break;
1007 case 4:
1008 BR13 = (pitch * cpp) | (0xCC << 16) | (1<<24) | (1<<25);
1009 CMD = (XY_SRC_COPY_BLT_CMD | XY_SRC_COPY_BLT_WRITE_ALPHA |
1010 XY_SRC_COPY_BLT_WRITE_RGB);
1011 break;
1012 default:
1013 BR13 = (pitch * cpp) | (0xCC << 16) | (1<<24);
1014 CMD = XY_SRC_COPY_BLT_CMD;
1015 break;
1016 }
1017
1018
1019 if (nbox > I830_NR_SAREA_CLIPRECTS)
1020 nbox = I830_NR_SAREA_CLIPRECTS;
1021
1022 for (i = 0 ; i < nbox; i++, pbox++)
1023 {
1024 if (pbox->x1 > pbox->x2 ||
1025 pbox->y1 > pbox->y2 ||
1026 pbox->x2 > dev_priv->w ||
1027 pbox->y2 > dev_priv->h)
1028 continue;
1029
1030 DRM_DEBUG("dispatch swap %d,%d-%d,%d!\n",
1031 pbox->x1, pbox->y1,
1032 pbox->x2, pbox->y2);
1033
1034 BEGIN_LP_RING( 8 );
1035 OUT_RING( CMD );
1036 OUT_RING( BR13 );
1037 OUT_RING( (pbox->y1 << 16) | pbox->x1 );
1038 OUT_RING( (pbox->y2 << 16) | pbox->x2 );
1039
1040 if (dev_priv->current_page == 0)
1041 OUT_RING( dev_priv->front_offset );
1042 else
1043 OUT_RING( dev_priv->back_offset );
1044
1045 OUT_RING( (pbox->y1 << 16) | pbox->x1 );
1046 OUT_RING( BR13 & 0xffff );
1047
1048 if (dev_priv->current_page == 0)
1049 OUT_RING( dev_priv->back_offset );
1050 else
1051 OUT_RING( dev_priv->front_offset );
1052
1053 ADVANCE_LP_RING();
1054 }
1055 }
1056
1057 static void i830_dma_dispatch_flip( drm_device_t *dev )
1058 {
1059 drm_i830_private_t *dev_priv = dev->dev_private;
1060 RING_LOCALS;
1061
1062 DRM_DEBUG( "%s: page=%d pfCurrentPage=%d\n",
1063 __FUNCTION__,
1064 dev_priv->current_page,
1065 dev_priv->sarea_priv->pf_current_page);
1066
1067 i830_kernel_lost_context(dev);
1068
1069 if (dev_priv->do_boxes) {
1070 dev_priv->sarea_priv->perf_boxes |= I830_BOX_FLIP;
1071 i830_cp_performance_boxes( dev );
1072 }
1073
1074
1075 BEGIN_LP_RING( 2 );
1076 OUT_RING( INST_PARSER_CLIENT | INST_OP_FLUSH | INST_FLUSH_MAP_CACHE );
1077 OUT_RING( 0 );
1078 ADVANCE_LP_RING();
1079
1080 BEGIN_LP_RING( 6 );
1081 OUT_RING( CMD_OP_DISPLAYBUFFER_INFO | ASYNC_FLIP );
1082 OUT_RING( 0 );
1083 if ( dev_priv->current_page == 0 ) {
1084 OUT_RING( dev_priv->back_offset );
1085 dev_priv->current_page = 1;
1086 } else {
1087 OUT_RING( dev_priv->front_offset );
1088 dev_priv->current_page = 0;
1089 }
1090 OUT_RING(0);
1091 ADVANCE_LP_RING();
1092
1093
1094 BEGIN_LP_RING( 2 );
1095 OUT_RING( MI_WAIT_FOR_EVENT |
1096 MI_WAIT_FOR_PLANE_A_FLIP );
1097 OUT_RING( 0 );
1098 ADVANCE_LP_RING();
1099
1100
1101 dev_priv->sarea_priv->pf_current_page = dev_priv->current_page;
1102 }
1103
1104 static void i830_dma_dispatch_vertex(drm_device_t *dev,
1105 drm_buf_t *buf,
1106 int discard,
1107 int used)
1108 {
1109 drm_i830_private_t *dev_priv = dev->dev_private;
1110 drm_i830_buf_priv_t *buf_priv = buf->dev_private;
1111 drm_i830_sarea_t *sarea_priv = dev_priv->sarea_priv;
1112 drm_clip_rect_t *box = sarea_priv->boxes;
1113 int nbox = sarea_priv->nbox;
1114 unsigned long address = (unsigned long)buf->bus_address;
1115 unsigned long start = address - dev->agp->base;
1116 int i = 0, u;
1117 RING_LOCALS;
1118
1119 i830_kernel_lost_context(dev);
1120
1121 if (nbox > I830_NR_SAREA_CLIPRECTS)
1122 nbox = I830_NR_SAREA_CLIPRECTS;
1123
1124 if (discard) {
1125 u = cmpxchg(buf_priv->in_use, I830_BUF_CLIENT,
1126 I830_BUF_HARDWARE);
1127 if(u != I830_BUF_CLIENT) {
1128 DRM_DEBUG("xxxx 2\n");
1129 }
1130 }
1131
1132 if (used > 4*1023)
1133 used = 0;
1134
1135 if (sarea_priv->dirty)
1136 i830EmitState( dev );
1137
1138 DRM_DEBUG("dispatch vertex addr 0x%lx, used 0x%x nbox %d\n",
1139 address, used, nbox);
1140
1141 dev_priv->counter++;
1142 DRM_DEBUG( "dispatch counter : %ld\n", dev_priv->counter);
1143 DRM_DEBUG( "i830_dma_dispatch\n");
1144 DRM_DEBUG( "start : %lx\n", start);
1145 DRM_DEBUG( "used : %d\n", used);
1146 DRM_DEBUG( "start + used - 4 : %ld\n", start + used - 4);
1147
1148 if (buf_priv->currently_mapped == I830_BUF_MAPPED) {
1149 u32 *vp = buf_priv->kernel_virtual;
1150
1151 vp[0] = (GFX_OP_PRIMITIVE |
1152 sarea_priv->vertex_prim |
1153 ((used/4)-2));
1154
1155 if (dev_priv->use_mi_batchbuffer_start) {
1156 vp[used/4] = MI_BATCH_BUFFER_END;
1157 used += 4;
1158 }
1159
1160 if (used & 4) {
1161 vp[used/4] = 0;
1162 used += 4;
1163 }
1164
1165 i830_unmap_buffer(buf);
1166 }
1167
1168 if (used) {
1169 do {
1170 if (i < nbox) {
1171 BEGIN_LP_RING(6);
1172 OUT_RING( GFX_OP_DRAWRECT_INFO );
1173 OUT_RING( sarea_priv->BufferState[I830_DESTREG_DR1] );
1174 OUT_RING( box[i].x1 | (box[i].y1<<16) );
1175 OUT_RING( box[i].x2 | (box[i].y2<<16) );
1176 OUT_RING( sarea_priv->BufferState[I830_DESTREG_DR4] );
1177 OUT_RING( 0 );
1178 ADVANCE_LP_RING();
1179 }
1180
1181 if (dev_priv->use_mi_batchbuffer_start) {
1182 BEGIN_LP_RING(2);
1183 OUT_RING( MI_BATCH_BUFFER_START | (2<<6) );
1184 OUT_RING( start | MI_BATCH_NON_SECURE );
1185 ADVANCE_LP_RING();
1186 }
1187 else {
1188 BEGIN_LP_RING(4);
1189 OUT_RING( MI_BATCH_BUFFER );
1190 OUT_RING( start | MI_BATCH_NON_SECURE );
1191 OUT_RING( start + used - 4 );
1192 OUT_RING( 0 );
1193 ADVANCE_LP_RING();
1194 }
1195
1196 } while (++i < nbox);
1197 }
1198
1199 if (discard) {
1200 dev_priv->counter++;
1201
1202 (void) cmpxchg(buf_priv->in_use, I830_BUF_CLIENT,
1203 I830_BUF_HARDWARE);
1204
1205 BEGIN_LP_RING(8);
1206 OUT_RING( CMD_STORE_DWORD_IDX );
1207 OUT_RING( 20 );
1208 OUT_RING( dev_priv->counter );
1209 OUT_RING( CMD_STORE_DWORD_IDX );
1210 OUT_RING( buf_priv->my_use_idx );
1211 OUT_RING( I830_BUF_FREE );
1212 OUT_RING( CMD_REPORT_HEAD );
1213 OUT_RING( 0 );
1214 ADVANCE_LP_RING();
1215 }
1216 }
1217
1218
1219 static void i830_dma_quiescent(drm_device_t *dev)
1220 {
1221 drm_i830_private_t *dev_priv = dev->dev_private;
1222 RING_LOCALS;
1223
1224 i830_kernel_lost_context(dev);
1225
1226 BEGIN_LP_RING(4);
1227 OUT_RING( INST_PARSER_CLIENT | INST_OP_FLUSH | INST_FLUSH_MAP_CACHE );
1228 OUT_RING( CMD_REPORT_HEAD );
1229 OUT_RING( 0 );
1230 OUT_RING( 0 );
1231 ADVANCE_LP_RING();
1232
1233 i830_wait_ring( dev, dev_priv->ring.Size - 8, __FUNCTION__ );
1234 }
1235
1236 static int i830_flush_queue(drm_device_t *dev)
1237 {
1238 drm_i830_private_t *dev_priv = dev->dev_private;
1239 drm_device_dma_t *dma = dev->dma;
1240 int i, ret = 0;
1241 RING_LOCALS;
1242
1243 i830_kernel_lost_context(dev);
1244
1245 BEGIN_LP_RING(2);
1246 OUT_RING( CMD_REPORT_HEAD );
1247 OUT_RING( 0 );
1248 ADVANCE_LP_RING();
1249
1250 i830_wait_ring( dev, dev_priv->ring.Size - 8, __FUNCTION__ );
1251
1252 for (i = 0; i < dma->buf_count; i++) {
1253 drm_buf_t *buf = dma->buflist[ i ];
1254 drm_i830_buf_priv_t *buf_priv = buf->dev_private;
1255
1256 int used = cmpxchg(buf_priv->in_use, I830_BUF_HARDWARE,
1257 I830_BUF_FREE);
1258
1259 if (used == I830_BUF_HARDWARE)
1260 DRM_DEBUG("reclaimed from HARDWARE\n");
1261 if (used == I830_BUF_CLIENT)
1262 DRM_DEBUG("still on client\n");
1263 }
1264
1265 return ret;
1266 }
1267
1268 /* Must be called with the lock held */
1269 void i830_reclaim_buffers(drm_device_t *dev, struct file *filp)
1270 {
1271 drm_device_dma_t *dma = dev->dma;
1272 int i;
1273
1274 if (!dma) return;
1275 if (!dev->dev_private) return;
1276 if (!dma->buflist) return;
1277
1278 i830_flush_queue(dev);
1279
1280 for (i = 0; i < dma->buf_count; i++) {
1281 drm_buf_t *buf = dma->buflist[ i ];
1282 drm_i830_buf_priv_t *buf_priv = buf->dev_private;
1283
1284 if (buf->filp == filp && buf_priv) {
1285 int used = cmpxchg(buf_priv->in_use, I830_BUF_CLIENT,
1286 I830_BUF_FREE);
1287
1288 if (used == I830_BUF_CLIENT)
1289 DRM_DEBUG("reclaimed from client\n");
1290 if(buf_priv->currently_mapped == I830_BUF_MAPPED)
1291 buf_priv->currently_mapped = I830_BUF_UNMAPPED;
1292 }
1293 }
1294 }
1295
1296 static int i830_flush_ioctl(struct inode *inode, struct file *filp,
1297 unsigned int cmd, unsigned long arg)
1298 {
1299 drm_file_t *priv = filp->private_data;
1300 drm_device_t *dev = priv->head->dev;
1301
1302 LOCK_TEST_WITH_RETURN(dev, filp);
1303
1304 i830_flush_queue(dev);
1305 return 0;
1306 }
1307
1308 static int i830_dma_vertex(struct inode *inode, struct file *filp,
1309 unsigned int cmd, unsigned long arg)
1310 {
1311 drm_file_t *priv = filp->private_data;
1312 drm_device_t *dev = priv->head->dev;
1313 drm_device_dma_t *dma = dev->dma;
1314 drm_i830_private_t *dev_priv = (drm_i830_private_t *)dev->dev_private;
1315 u32 *hw_status = dev_priv->hw_status_page;
1316 drm_i830_sarea_t *sarea_priv = (drm_i830_sarea_t *)
1317 dev_priv->sarea_priv;
1318 drm_i830_vertex_t vertex;
1319
1320 if (copy_from_user(&vertex, (drm_i830_vertex_t __user *)arg, sizeof(vertex)))
1321 return -EFAULT;
1322
1323 LOCK_TEST_WITH_RETURN(dev, filp);
1324
1325 DRM_DEBUG("i830 dma vertex, idx %d used %d discard %d\n",
1326 vertex.idx, vertex.used, vertex.discard);
1327
1328 if(vertex.idx < 0 || vertex.idx > dma->buf_count) return -EINVAL;
1329
1330 i830_dma_dispatch_vertex( dev,
1331 dma->buflist[ vertex.idx ],
1332 vertex.discard, vertex.used );
1333
1334 sarea_priv->last_enqueue = dev_priv->counter-1;
1335 sarea_priv->last_dispatch = (int) hw_status[5];
1336
1337 return 0;
1338 }
1339
1340 static int i830_clear_bufs(struct inode *inode, struct file *filp,
1341 unsigned int cmd, unsigned long arg)
1342 {
1343 drm_file_t *priv = filp->private_data;
1344 drm_device_t *dev = priv->head->dev;
1345 drm_i830_clear_t clear;
1346
1347 if (copy_from_user(&clear, (drm_i830_clear_t __user *)arg, sizeof(clear)))
1348 return -EFAULT;
1349
1350 LOCK_TEST_WITH_RETURN(dev, filp);
1351
1352 /* GH: Someone's doing nasty things... */
1353 if (!dev->dev_private) {
1354 return -EINVAL;
1355 }
1356
1357 i830_dma_dispatch_clear( dev, clear.flags,
1358 clear.clear_color,
1359 clear.clear_depth,
1360 clear.clear_depthmask);
1361 return 0;
1362 }
1363
1364 static int i830_swap_bufs(struct inode *inode, struct file *filp,
1365 unsigned int cmd, unsigned long arg)
1366 {
1367 drm_file_t *priv = filp->private_data;
1368 drm_device_t *dev = priv->head->dev;
1369
1370 DRM_DEBUG("i830_swap_bufs\n");
1371
1372 LOCK_TEST_WITH_RETURN(dev, filp);
1373
1374 i830_dma_dispatch_swap( dev );
1375 return 0;
1376 }
1377
1378
1379
1380 /* Not sure why this isn't set all the time:
1381 */
1382 static void i830_do_init_pageflip( drm_device_t *dev )
1383 {
1384 drm_i830_private_t *dev_priv = dev->dev_private;
1385
1386 DRM_DEBUG("%s\n", __FUNCTION__);
1387 dev_priv->page_flipping = 1;
1388 dev_priv->current_page = 0;
1389 dev_priv->sarea_priv->pf_current_page = dev_priv->current_page;
1390 }
1391
1392 static int i830_do_cleanup_pageflip( drm_device_t *dev )
1393 {
1394 drm_i830_private_t *dev_priv = dev->dev_private;
1395
1396 DRM_DEBUG("%s\n", __FUNCTION__);
1397 if (dev_priv->current_page != 0)
1398 i830_dma_dispatch_flip( dev );
1399
1400 dev_priv->page_flipping = 0;
1401 return 0;
1402 }
1403
1404 static int i830_flip_bufs(struct inode *inode, struct file *filp,
1405 unsigned int cmd, unsigned long arg)
1406 {
1407 drm_file_t *priv = filp->private_data;
1408 drm_device_t *dev = priv->head->dev;
1409 drm_i830_private_t *dev_priv = dev->dev_private;
1410
1411 DRM_DEBUG("%s\n", __FUNCTION__);
1412
1413 LOCK_TEST_WITH_RETURN(dev, filp);
1414
1415 if (!dev_priv->page_flipping)
1416 i830_do_init_pageflip( dev );
1417
1418 i830_dma_dispatch_flip( dev );
1419 return 0;
1420 }
1421
1422 static int i830_getage(struct inode *inode, struct file *filp, unsigned int cmd,
1423 unsigned long arg)
1424 {
1425 drm_file_t *priv = filp->private_data;
1426 drm_device_t *dev = priv->head->dev;
1427 drm_i830_private_t *dev_priv = (drm_i830_private_t *)dev->dev_private;
1428 u32 *hw_status = dev_priv->hw_status_page;
1429 drm_i830_sarea_t *sarea_priv = (drm_i830_sarea_t *)
1430 dev_priv->sarea_priv;
1431
1432 sarea_priv->last_dispatch = (int) hw_status[5];
1433 return 0;
1434 }
1435
1436 static int i830_getbuf(struct inode *inode, struct file *filp, unsigned int cmd,
1437 unsigned long arg)
1438 {
1439 drm_file_t *priv = filp->private_data;
1440 drm_device_t *dev = priv->head->dev;
1441 int retcode = 0;
1442 drm_i830_dma_t d;
1443 drm_i830_private_t *dev_priv = (drm_i830_private_t *)dev->dev_private;
1444 u32 *hw_status = dev_priv->hw_status_page;
1445 drm_i830_sarea_t *sarea_priv = (drm_i830_sarea_t *)
1446 dev_priv->sarea_priv;
1447
1448 DRM_DEBUG("getbuf\n");
1449 if (copy_from_user(&d, (drm_i830_dma_t __user *)arg, sizeof(d)))
1450 return -EFAULT;
1451
1452 LOCK_TEST_WITH_RETURN(dev, filp);
1453
1454 d.granted = 0;
1455
1456 retcode = i830_dma_get_buffer(dev, &d, filp);
1457
1458 DRM_DEBUG("i830_dma: %d returning %d, granted = %d\n",
1459 current->pid, retcode, d.granted);
1460
1461 if (copy_to_user((drm_dma_t __user *)arg, &d, sizeof(d)))
1462 return -EFAULT;
1463 sarea_priv->last_dispatch = (int) hw_status[5];
1464
1465 return retcode;
1466 }
1467
1468 static int i830_copybuf(struct inode *inode,
1469 struct file *filp, unsigned int cmd, unsigned long arg)
1470 {
1471 /* Never copy - 2.4.x doesn't need it */
1472 return 0;
1473 }
1474
1475 static int i830_docopy(struct inode *inode, struct file *filp, unsigned int cmd,
1476 unsigned long arg)
1477 {
1478 return 0;
1479 }
1480
1481
1482
1483 static int i830_getparam( struct inode *inode, struct file *filp,
1484 unsigned int cmd, unsigned long arg )
1485 {
1486 drm_file_t *priv = filp->private_data;
1487 drm_device_t *dev = priv->head->dev;
1488 drm_i830_private_t *dev_priv = dev->dev_private;
1489 drm_i830_getparam_t param;
1490 int value;
1491
1492 if ( !dev_priv ) {
1493 DRM_ERROR( "%s called with no initialization\n", __FUNCTION__ );
1494 return -EINVAL;
1495 }
1496
1497 if (copy_from_user(&param, (drm_i830_getparam_t __user *)arg, sizeof(param) ))
1498 return -EFAULT;
1499
1500 switch( param.param ) {
1501 case I830_PARAM_IRQ_ACTIVE:
1502 value = dev->irq_enabled;
1503 break;
1504 default:
1505 return -EINVAL;
1506 }
1507
1508 if ( copy_to_user( param.value, &value, sizeof(int) ) ) {
1509 DRM_ERROR( "copy_to_user\n" );
1510 return -EFAULT;
1511 }
1512
1513 return 0;
1514 }
1515
1516
1517 static int i830_setparam( struct inode *inode, struct file *filp,
1518 unsigned int cmd, unsigned long arg )
1519 {
1520 drm_file_t *priv = filp->private_data;
1521 drm_device_t *dev = priv->head->dev;
1522 drm_i830_private_t *dev_priv = dev->dev_private;
1523 drm_i830_setparam_t param;
1524
1525 if ( !dev_priv ) {
1526 DRM_ERROR( "%s called with no initialization\n", __FUNCTION__ );
1527 return -EINVAL;
1528 }
1529
1530 if (copy_from_user(&param, (drm_i830_setparam_t __user *)arg, sizeof(param) ))
1531 return -EFAULT;
1532
1533 switch( param.param ) {
1534 case I830_SETPARAM_USE_MI_BATCHBUFFER_START:
1535 dev_priv->use_mi_batchbuffer_start = param.value;
1536 break;
1537 default:
1538 return -EINVAL;
1539 }
1540
1541 return 0;
1542 }
1543
1544
1545 void i830_driver_pretakedown(drm_device_t *dev)
1546 {
1547 i830_dma_cleanup( dev );
1548 }
1549
1550 void i830_driver_prerelease(drm_device_t *dev, DRMFILE filp)
1551 {
1552 if (dev->dev_private) {
1553 drm_i830_private_t *dev_priv = dev->dev_private;
1554 if (dev_priv->page_flipping) {
1555 i830_do_cleanup_pageflip(dev);
1556 }
1557 }
1558 }
1559
1560 void i830_driver_release(drm_device_t *dev, struct file *filp)
1561 {
1562 i830_reclaim_buffers(dev, filp);
1563 }
1564
1565 int i830_driver_dma_quiescent(drm_device_t *dev)
1566 {
1567 i830_dma_quiescent( dev );
1568 return 0;
1569 }
1570
1571 drm_ioctl_desc_t i830_ioctls[] = {
1572 [DRM_IOCTL_NR(DRM_I830_INIT)] = { i830_dma_init, 1, 1 },
1573 [DRM_IOCTL_NR(DRM_I830_VERTEX)] = { i830_dma_vertex, 1, 0 },
1574 [DRM_IOCTL_NR(DRM_I830_CLEAR)] = { i830_clear_bufs, 1, 0 },
1575 [DRM_IOCTL_NR(DRM_I830_FLUSH)] = { i830_flush_ioctl, 1, 0 },
1576 [DRM_IOCTL_NR(DRM_I830_GETAGE)] = { i830_getage, 1, 0 },
1577 [DRM_IOCTL_NR(DRM_I830_GETBUF)] = { i830_getbuf, 1, 0 },
1578 [DRM_IOCTL_NR(DRM_I830_SWAP)] = { i830_swap_bufs, 1, 0 },
1579 [DRM_IOCTL_NR(DRM_I830_COPY)] = { i830_copybuf, 1, 0 },
1580 [DRM_IOCTL_NR(DRM_I830_DOCOPY)] = { i830_docopy, 1, 0 },
1581 [DRM_IOCTL_NR(DRM_I830_FLIP)] = { i830_flip_bufs, 1, 0 },
1582 [DRM_IOCTL_NR(DRM_I830_IRQ_EMIT)] = { i830_irq_emit, 1, 0 },
1583 [DRM_IOCTL_NR(DRM_I830_IRQ_WAIT)] = { i830_irq_wait, 1, 0 },
1584 [DRM_IOCTL_NR(DRM_I830_GETPARAM)] = { i830_getparam, 1, 0 },
1585 [DRM_IOCTL_NR(DRM_I830_SETPARAM)] = { i830_setparam, 1, 0 }
1586 };
1587
1588 int i830_max_ioctl = DRM_ARRAY_SIZE(i830_ioctls);
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree