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33#include <linux/delay.h>
34#include <linux/mman.h>
35#include <linux/pci.h>
36
37#include <drm/drm_agpsupport.h>
38#include <drm/drm_device.h>
39#include <drm/drm_drv.h>
40#include <drm/drm_file.h>
41#include <drm/drm_ioctl.h>
42#include <drm/drm_irq.h>
43#include <drm/drm_print.h>
44#include <drm/i810_drm.h>
45
46#include "i810_drv.h"
47
48#define I810_BUF_FREE 2
49#define I810_BUF_CLIENT 1
50#define I810_BUF_HARDWARE 0
51
52#define I810_BUF_UNMAPPED 0
53#define I810_BUF_MAPPED 1
54
55static struct drm_buf *i810_freelist_get(struct drm_device * dev)
56{
57 struct drm_device_dma *dma = dev->dma;
58 int i;
59 int used;
60
61
62
63 for (i = 0; i < dma->buf_count; i++) {
64 struct drm_buf *buf = dma->buflist[i];
65 drm_i810_buf_priv_t *buf_priv = buf->dev_private;
66
67 used = cmpxchg(buf_priv->in_use, I810_BUF_FREE,
68 I810_BUF_CLIENT);
69 if (used == I810_BUF_FREE)
70 return buf;
71 }
72 return NULL;
73}
74
75
76
77
78
79static int i810_freelist_put(struct drm_device *dev, struct drm_buf *buf)
80{
81 drm_i810_buf_priv_t *buf_priv = buf->dev_private;
82 int used;
83
84
85 used = cmpxchg(buf_priv->in_use, I810_BUF_CLIENT, I810_BUF_FREE);
86 if (used != I810_BUF_CLIENT) {
87 DRM_ERROR("Freeing buffer thats not in use : %d\n", buf->idx);
88 return -EINVAL;
89 }
90
91 return 0;
92}
93
94static int i810_mmap_buffers(struct file *filp, struct vm_area_struct *vma)
95{
96 struct drm_file *priv = filp->private_data;
97 struct drm_device *dev;
98 drm_i810_private_t *dev_priv;
99 struct drm_buf *buf;
100 drm_i810_buf_priv_t *buf_priv;
101
102 dev = priv->minor->dev;
103 dev_priv = dev->dev_private;
104 buf = dev_priv->mmap_buffer;
105 buf_priv = buf->dev_private;
106
107 vma->vm_flags |= VM_DONTCOPY;
108
109 buf_priv->currently_mapped = I810_BUF_MAPPED;
110
111 if (io_remap_pfn_range(vma, vma->vm_start,
112 vma->vm_pgoff,
113 vma->vm_end - vma->vm_start, vma->vm_page_prot))
114 return -EAGAIN;
115 return 0;
116}
117
118static const struct file_operations i810_buffer_fops = {
119 .open = drm_open,
120 .release = drm_release,
121 .unlocked_ioctl = drm_ioctl,
122 .mmap = i810_mmap_buffers,
123 .compat_ioctl = drm_compat_ioctl,
124 .llseek = noop_llseek,
125};
126
127static int i810_map_buffer(struct drm_buf *buf, struct drm_file *file_priv)
128{
129 struct drm_device *dev = file_priv->minor->dev;
130 drm_i810_buf_priv_t *buf_priv = buf->dev_private;
131 drm_i810_private_t *dev_priv = dev->dev_private;
132 const struct file_operations *old_fops;
133 int retcode = 0;
134
135 if (buf_priv->currently_mapped == I810_BUF_MAPPED)
136 return -EINVAL;
137
138
139 old_fops = file_priv->filp->f_op;
140 file_priv->filp->f_op = &i810_buffer_fops;
141 dev_priv->mmap_buffer = buf;
142 buf_priv->virtual = (void *)vm_mmap(file_priv->filp, 0, buf->total,
143 PROT_READ | PROT_WRITE,
144 MAP_SHARED, buf->bus_address);
145 dev_priv->mmap_buffer = NULL;
146 file_priv->filp->f_op = old_fops;
147 if (IS_ERR(buf_priv->virtual)) {
148
149 DRM_ERROR("mmap error\n");
150 retcode = PTR_ERR(buf_priv->virtual);
151 buf_priv->virtual = NULL;
152 }
153
154 return retcode;
155}
156
157static int i810_unmap_buffer(struct drm_buf *buf)
158{
159 drm_i810_buf_priv_t *buf_priv = buf->dev_private;
160 int retcode = 0;
161
162 if (buf_priv->currently_mapped != I810_BUF_MAPPED)
163 return -EINVAL;
164
165 retcode = vm_munmap((unsigned long)buf_priv->virtual,
166 (size_t) buf->total);
167
168 buf_priv->currently_mapped = I810_BUF_UNMAPPED;
169 buf_priv->virtual = NULL;
170
171 return retcode;
172}
173
174static int i810_dma_get_buffer(struct drm_device *dev, drm_i810_dma_t *d,
175 struct drm_file *file_priv)
176{
177 struct drm_buf *buf;
178 drm_i810_buf_priv_t *buf_priv;
179 int retcode = 0;
180
181 buf = i810_freelist_get(dev);
182 if (!buf) {
183 retcode = -ENOMEM;
184 DRM_DEBUG("retcode=%d\n", retcode);
185 return retcode;
186 }
187
188 retcode = i810_map_buffer(buf, file_priv);
189 if (retcode) {
190 i810_freelist_put(dev, buf);
191 DRM_ERROR("mapbuf failed, retcode %d\n", retcode);
192 return retcode;
193 }
194 buf->file_priv = file_priv;
195 buf_priv = buf->dev_private;
196 d->granted = 1;
197 d->request_idx = buf->idx;
198 d->request_size = buf->total;
199 d->virtual = buf_priv->virtual;
200
201 return retcode;
202}
203
204static int i810_dma_cleanup(struct drm_device *dev)
205{
206 struct drm_device_dma *dma = dev->dma;
207
208
209
210
211
212 if (drm_core_check_feature(dev, DRIVER_HAVE_IRQ) && dev->irq_enabled)
213 drm_irq_uninstall(dev);
214
215 if (dev->dev_private) {
216 int i;
217 drm_i810_private_t *dev_priv =
218 (drm_i810_private_t *) dev->dev_private;
219
220 if (dev_priv->ring.virtual_start)
221 drm_legacy_ioremapfree(&dev_priv->ring.map, dev);
222 if (dev_priv->hw_status_page) {
223 dma_free_coherent(&dev->pdev->dev, PAGE_SIZE,
224 dev_priv->hw_status_page,
225 dev_priv->dma_status_page);
226 }
227 kfree(dev->dev_private);
228 dev->dev_private = NULL;
229
230 for (i = 0; i < dma->buf_count; i++) {
231 struct drm_buf *buf = dma->buflist[i];
232 drm_i810_buf_priv_t *buf_priv = buf->dev_private;
233
234 if (buf_priv->kernel_virtual && buf->total)
235 drm_legacy_ioremapfree(&buf_priv->map, dev);
236 }
237 }
238 return 0;
239}
240
241static int i810_wait_ring(struct drm_device *dev, int n)
242{
243 drm_i810_private_t *dev_priv = dev->dev_private;
244 drm_i810_ring_buffer_t *ring = &(dev_priv->ring);
245 int iters = 0;
246 unsigned long end;
247 unsigned int last_head = I810_READ(LP_RING + RING_HEAD) & HEAD_ADDR;
248
249 end = jiffies + (HZ * 3);
250 while (ring->space < n) {
251 ring->head = I810_READ(LP_RING + RING_HEAD) & HEAD_ADDR;
252 ring->space = ring->head - (ring->tail + 8);
253 if (ring->space < 0)
254 ring->space += ring->Size;
255
256 if (ring->head != last_head) {
257 end = jiffies + (HZ * 3);
258 last_head = ring->head;
259 }
260
261 iters++;
262 if (time_before(end, jiffies)) {
263 DRM_ERROR("space: %d wanted %d\n", ring->space, n);
264 DRM_ERROR("lockup\n");
265 goto out_wait_ring;
266 }
267 udelay(1);
268 }
269
270out_wait_ring:
271 return iters;
272}
273
274static void i810_kernel_lost_context(struct drm_device *dev)
275{
276 drm_i810_private_t *dev_priv = dev->dev_private;
277 drm_i810_ring_buffer_t *ring = &(dev_priv->ring);
278
279 ring->head = I810_READ(LP_RING + RING_HEAD) & HEAD_ADDR;
280 ring->tail = I810_READ(LP_RING + RING_TAIL);
281 ring->space = ring->head - (ring->tail + 8);
282 if (ring->space < 0)
283 ring->space += ring->Size;
284}
285
286static int i810_freelist_init(struct drm_device *dev, drm_i810_private_t *dev_priv)
287{
288 struct drm_device_dma *dma = dev->dma;
289 int my_idx = 24;
290 u32 *hw_status = (u32 *) (dev_priv->hw_status_page + my_idx);
291 int i;
292
293 if (dma->buf_count > 1019) {
294
295 return -EINVAL;
296 }
297
298 for (i = 0; i < dma->buf_count; i++) {
299 struct drm_buf *buf = dma->buflist[i];
300 drm_i810_buf_priv_t *buf_priv = buf->dev_private;
301
302 buf_priv->in_use = hw_status++;
303 buf_priv->my_use_idx = my_idx;
304 my_idx += 4;
305
306 *buf_priv->in_use = I810_BUF_FREE;
307
308 buf_priv->map.offset = buf->bus_address;
309 buf_priv->map.size = buf->total;
310 buf_priv->map.type = _DRM_AGP;
311 buf_priv->map.flags = 0;
312 buf_priv->map.mtrr = 0;
313
314 drm_legacy_ioremap(&buf_priv->map, dev);
315 buf_priv->kernel_virtual = buf_priv->map.handle;
316
317 }
318 return 0;
319}
320
321static int i810_dma_initialize(struct drm_device *dev,
322 drm_i810_private_t *dev_priv,
323 drm_i810_init_t *init)
324{
325 struct drm_map_list *r_list;
326 memset(dev_priv, 0, sizeof(drm_i810_private_t));
327
328 list_for_each_entry(r_list, &dev->maplist, head) {
329 if (r_list->map &&
330 r_list->map->type == _DRM_SHM &&
331 r_list->map->flags & _DRM_CONTAINS_LOCK) {
332 dev_priv->sarea_map = r_list->map;
333 break;
334 }
335 }
336 if (!dev_priv->sarea_map) {
337 dev->dev_private = (void *)dev_priv;
338 i810_dma_cleanup(dev);
339 DRM_ERROR("can not find sarea!\n");
340 return -EINVAL;
341 }
342 dev_priv->mmio_map = drm_legacy_findmap(dev, init->mmio_offset);
343 if (!dev_priv->mmio_map) {
344 dev->dev_private = (void *)dev_priv;
345 i810_dma_cleanup(dev);
346 DRM_ERROR("can not find mmio map!\n");
347 return -EINVAL;
348 }
349 dev->agp_buffer_token = init->buffers_offset;
350 dev->agp_buffer_map = drm_legacy_findmap(dev, init->buffers_offset);
351 if (!dev->agp_buffer_map) {
352 dev->dev_private = (void *)dev_priv;
353 i810_dma_cleanup(dev);
354 DRM_ERROR("can not find dma buffer map!\n");
355 return -EINVAL;
356 }
357
358 dev_priv->sarea_priv = (drm_i810_sarea_t *)
359 ((u8 *) dev_priv->sarea_map->handle + init->sarea_priv_offset);
360
361 dev_priv->ring.Start = init->ring_start;
362 dev_priv->ring.End = init->ring_end;
363 dev_priv->ring.Size = init->ring_size;
364
365 dev_priv->ring.map.offset = dev->agp->base + init->ring_start;
366 dev_priv->ring.map.size = init->ring_size;
367 dev_priv->ring.map.type = _DRM_AGP;
368 dev_priv->ring.map.flags = 0;
369 dev_priv->ring.map.mtrr = 0;
370
371 drm_legacy_ioremap(&dev_priv->ring.map, dev);
372
373 if (dev_priv->ring.map.handle == NULL) {
374 dev->dev_private = (void *)dev_priv;
375 i810_dma_cleanup(dev);
376 DRM_ERROR("can not ioremap virtual address for"
377 " ring buffer\n");
378 return -ENOMEM;
379 }
380
381 dev_priv->ring.virtual_start = dev_priv->ring.map.handle;
382
383 dev_priv->ring.tail_mask = dev_priv->ring.Size - 1;
384
385 dev_priv->w = init->w;
386 dev_priv->h = init->h;
387 dev_priv->pitch = init->pitch;
388 dev_priv->back_offset = init->back_offset;
389 dev_priv->depth_offset = init->depth_offset;
390 dev_priv->front_offset = init->front_offset;
391
392 dev_priv->overlay_offset = init->overlay_offset;
393 dev_priv->overlay_physical = init->overlay_physical;
394
395 dev_priv->front_di1 = init->front_offset | init->pitch_bits;
396 dev_priv->back_di1 = init->back_offset | init->pitch_bits;
397 dev_priv->zi1 = init->depth_offset | init->pitch_bits;
398
399
400 dev_priv->hw_status_page =
401 dma_alloc_coherent(&dev->pdev->dev, PAGE_SIZE,
402 &dev_priv->dma_status_page, GFP_KERNEL);
403 if (!dev_priv->hw_status_page) {
404 dev->dev_private = (void *)dev_priv;
405 i810_dma_cleanup(dev);
406 DRM_ERROR("Can not allocate hardware status page\n");
407 return -ENOMEM;
408 }
409 DRM_DEBUG("hw status page @ %p\n", dev_priv->hw_status_page);
410
411 I810_WRITE(0x02080, dev_priv->dma_status_page);
412 DRM_DEBUG("Enabled hardware status page\n");
413
414
415 if (i810_freelist_init(dev, dev_priv) != 0) {
416 dev->dev_private = (void *)dev_priv;
417 i810_dma_cleanup(dev);
418 DRM_ERROR("Not enough space in the status page for"
419 " the freelist\n");
420 return -ENOMEM;
421 }
422 dev->dev_private = (void *)dev_priv;
423
424 return 0;
425}
426
427static int i810_dma_init(struct drm_device *dev, void *data,
428 struct drm_file *file_priv)
429{
430 drm_i810_private_t *dev_priv;
431 drm_i810_init_t *init = data;
432 int retcode = 0;
433
434 switch (init->func) {
435 case I810_INIT_DMA_1_4:
436 DRM_INFO("Using v1.4 init.\n");
437 dev_priv = kmalloc(sizeof(drm_i810_private_t), GFP_KERNEL);
438 if (dev_priv == NULL)
439 return -ENOMEM;
440 retcode = i810_dma_initialize(dev, dev_priv, init);
441 break;
442
443 case I810_CLEANUP_DMA:
444 DRM_INFO("DMA Cleanup\n");
445 retcode = i810_dma_cleanup(dev);
446 break;
447 default:
448 return -EINVAL;
449 }
450
451 return retcode;
452}
453
454
455
456
457
458
459
460static void i810EmitContextVerified(struct drm_device *dev,
461 volatile unsigned int *code)
462{
463 drm_i810_private_t *dev_priv = dev->dev_private;
464 int i, j = 0;
465 unsigned int tmp;
466 RING_LOCALS;
467
468 BEGIN_LP_RING(I810_CTX_SETUP_SIZE);
469
470 OUT_RING(GFX_OP_COLOR_FACTOR);
471 OUT_RING(code[I810_CTXREG_CF1]);
472
473 OUT_RING(GFX_OP_STIPPLE);
474 OUT_RING(code[I810_CTXREG_ST1]);
475
476 for (i = 4; i < I810_CTX_SETUP_SIZE; i++) {
477 tmp = code[i];
478
479 if ((tmp & (7 << 29)) == (3 << 29) &&
480 (tmp & (0x1f << 24)) < (0x1d << 24)) {
481 OUT_RING(tmp);
482 j++;
483 } else
484 printk("constext state dropped!!!\n");
485 }
486
487 if (j & 1)
488 OUT_RING(0);
489
490 ADVANCE_LP_RING();
491}
492
493static void i810EmitTexVerified(struct drm_device *dev, volatile unsigned int *code)
494{
495 drm_i810_private_t *dev_priv = dev->dev_private;
496 int i, j = 0;
497 unsigned int tmp;
498 RING_LOCALS;
499
500 BEGIN_LP_RING(I810_TEX_SETUP_SIZE);
501
502 OUT_RING(GFX_OP_MAP_INFO);
503 OUT_RING(code[I810_TEXREG_MI1]);
504 OUT_RING(code[I810_TEXREG_MI2]);
505 OUT_RING(code[I810_TEXREG_MI3]);
506
507 for (i = 4; i < I810_TEX_SETUP_SIZE; i++) {
508 tmp = code[i];
509
510 if ((tmp & (7 << 29)) == (3 << 29) &&
511 (tmp & (0x1f << 24)) < (0x1d << 24)) {
512 OUT_RING(tmp);
513 j++;
514 } else
515 printk("texture state dropped!!!\n");
516 }
517
518 if (j & 1)
519 OUT_RING(0);
520
521 ADVANCE_LP_RING();
522}
523
524
525
526static void i810EmitDestVerified(struct drm_device *dev,
527 volatile unsigned int *code)
528{
529 drm_i810_private_t *dev_priv = dev->dev_private;
530 unsigned int tmp;
531 RING_LOCALS;
532
533 BEGIN_LP_RING(I810_DEST_SETUP_SIZE + 2);
534
535 tmp = code[I810_DESTREG_DI1];
536 if (tmp == dev_priv->front_di1 || tmp == dev_priv->back_di1) {
537 OUT_RING(CMD_OP_DESTBUFFER_INFO);
538 OUT_RING(tmp);
539 } else
540 DRM_DEBUG("bad di1 %x (allow %x or %x)\n",
541 tmp, dev_priv->front_di1, dev_priv->back_di1);
542
543
544
545 OUT_RING(CMD_OP_Z_BUFFER_INFO);
546 OUT_RING(dev_priv->zi1);
547
548 OUT_RING(GFX_OP_DESTBUFFER_VARS);
549 OUT_RING(code[I810_DESTREG_DV1]);
550
551 OUT_RING(GFX_OP_DRAWRECT_INFO);
552 OUT_RING(code[I810_DESTREG_DR1]);
553 OUT_RING(code[I810_DESTREG_DR2]);
554 OUT_RING(code[I810_DESTREG_DR3]);
555 OUT_RING(code[I810_DESTREG_DR4]);
556 OUT_RING(0);
557
558 ADVANCE_LP_RING();
559}
560
561static void i810EmitState(struct drm_device *dev)
562{
563 drm_i810_private_t *dev_priv = dev->dev_private;
564 drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
565 unsigned int dirty = sarea_priv->dirty;
566
567 DRM_DEBUG("%x\n", dirty);
568
569 if (dirty & I810_UPLOAD_BUFFERS) {
570 i810EmitDestVerified(dev, sarea_priv->BufferState);
571 sarea_priv->dirty &= ~I810_UPLOAD_BUFFERS;
572 }
573
574 if (dirty & I810_UPLOAD_CTX) {
575 i810EmitContextVerified(dev, sarea_priv->ContextState);
576 sarea_priv->dirty &= ~I810_UPLOAD_CTX;
577 }
578
579 if (dirty & I810_UPLOAD_TEX0) {
580 i810EmitTexVerified(dev, sarea_priv->TexState[0]);
581 sarea_priv->dirty &= ~I810_UPLOAD_TEX0;
582 }
583
584 if (dirty & I810_UPLOAD_TEX1) {
585 i810EmitTexVerified(dev, sarea_priv->TexState[1]);
586 sarea_priv->dirty &= ~I810_UPLOAD_TEX1;
587 }
588}
589
590
591
592static void i810_dma_dispatch_clear(struct drm_device *dev, int flags,
593 unsigned int clear_color,
594 unsigned int clear_zval)
595{
596 drm_i810_private_t *dev_priv = dev->dev_private;
597 drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
598 int nbox = sarea_priv->nbox;
599 struct drm_clip_rect *pbox = sarea_priv->boxes;
600 int pitch = dev_priv->pitch;
601 int cpp = 2;
602 int i;
603 RING_LOCALS;
604
605 if (dev_priv->current_page == 1) {
606 unsigned int tmp = flags;
607
608 flags &= ~(I810_FRONT | I810_BACK);
609 if (tmp & I810_FRONT)
610 flags |= I810_BACK;
611 if (tmp & I810_BACK)
612 flags |= I810_FRONT;
613 }
614
615 i810_kernel_lost_context(dev);
616
617 if (nbox > I810_NR_SAREA_CLIPRECTS)
618 nbox = I810_NR_SAREA_CLIPRECTS;
619
620 for (i = 0; i < nbox; i++, pbox++) {
621 unsigned int x = pbox->x1;
622 unsigned int y = pbox->y1;
623 unsigned int width = (pbox->x2 - x) * cpp;
624 unsigned int height = pbox->y2 - y;
625 unsigned int start = y * pitch + x * cpp;
626
627 if (pbox->x1 > pbox->x2 ||
628 pbox->y1 > pbox->y2 ||
629 pbox->x2 > dev_priv->w || pbox->y2 > dev_priv->h)
630 continue;
631
632 if (flags & I810_FRONT) {
633 BEGIN_LP_RING(6);
634 OUT_RING(BR00_BITBLT_CLIENT | BR00_OP_COLOR_BLT | 0x3);
635 OUT_RING(BR13_SOLID_PATTERN | (0xF0 << 16) | pitch);
636 OUT_RING((height << 16) | width);
637 OUT_RING(start);
638 OUT_RING(clear_color);
639 OUT_RING(0);
640 ADVANCE_LP_RING();
641 }
642
643 if (flags & I810_BACK) {
644 BEGIN_LP_RING(6);
645 OUT_RING(BR00_BITBLT_CLIENT | BR00_OP_COLOR_BLT | 0x3);
646 OUT_RING(BR13_SOLID_PATTERN | (0xF0 << 16) | pitch);
647 OUT_RING((height << 16) | width);
648 OUT_RING(dev_priv->back_offset + start);
649 OUT_RING(clear_color);
650 OUT_RING(0);
651 ADVANCE_LP_RING();
652 }
653
654 if (flags & I810_DEPTH) {
655 BEGIN_LP_RING(6);
656 OUT_RING(BR00_BITBLT_CLIENT | BR00_OP_COLOR_BLT | 0x3);
657 OUT_RING(BR13_SOLID_PATTERN | (0xF0 << 16) | pitch);
658 OUT_RING((height << 16) | width);
659 OUT_RING(dev_priv->depth_offset + start);
660 OUT_RING(clear_zval);
661 OUT_RING(0);
662 ADVANCE_LP_RING();
663 }
664 }
665}
666
667static void i810_dma_dispatch_swap(struct drm_device *dev)
668{
669 drm_i810_private_t *dev_priv = dev->dev_private;
670 drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
671 int nbox = sarea_priv->nbox;
672 struct drm_clip_rect *pbox = sarea_priv->boxes;
673 int pitch = dev_priv->pitch;
674 int cpp = 2;
675 int i;
676 RING_LOCALS;
677
678 DRM_DEBUG("swapbuffers\n");
679
680 i810_kernel_lost_context(dev);
681
682 if (nbox > I810_NR_SAREA_CLIPRECTS)
683 nbox = I810_NR_SAREA_CLIPRECTS;
684
685 for (i = 0; i < nbox; i++, pbox++) {
686 unsigned int w = pbox->x2 - pbox->x1;
687 unsigned int h = pbox->y2 - pbox->y1;
688 unsigned int dst = pbox->x1 * cpp + pbox->y1 * pitch;
689 unsigned int start = dst;
690
691 if (pbox->x1 > pbox->x2 ||
692 pbox->y1 > pbox->y2 ||
693 pbox->x2 > dev_priv->w || pbox->y2 > dev_priv->h)
694 continue;
695
696 BEGIN_LP_RING(6);
697 OUT_RING(BR00_BITBLT_CLIENT | BR00_OP_SRC_COPY_BLT | 0x4);
698 OUT_RING(pitch | (0xCC << 16));
699 OUT_RING((h << 16) | (w * cpp));
700 if (dev_priv->current_page == 0)
701 OUT_RING(dev_priv->front_offset + start);
702 else
703 OUT_RING(dev_priv->back_offset + start);
704 OUT_RING(pitch);
705 if (dev_priv->current_page == 0)
706 OUT_RING(dev_priv->back_offset + start);
707 else
708 OUT_RING(dev_priv->front_offset + start);
709 ADVANCE_LP_RING();
710 }
711}
712
713static void i810_dma_dispatch_vertex(struct drm_device *dev,
714 struct drm_buf *buf, int discard, int used)
715{
716 drm_i810_private_t *dev_priv = dev->dev_private;
717 drm_i810_buf_priv_t *buf_priv = buf->dev_private;
718 drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
719 struct drm_clip_rect *box = sarea_priv->boxes;
720 int nbox = sarea_priv->nbox;
721 unsigned long address = (unsigned long)buf->bus_address;
722 unsigned long start = address - dev->agp->base;
723 int i = 0;
724 RING_LOCALS;
725
726 i810_kernel_lost_context(dev);
727
728 if (nbox > I810_NR_SAREA_CLIPRECTS)
729 nbox = I810_NR_SAREA_CLIPRECTS;
730
731 if (used < 0 || used > 4 * 1024)
732 used = 0;
733
734 if (sarea_priv->dirty)
735 i810EmitState(dev);
736
737 if (buf_priv->currently_mapped == I810_BUF_MAPPED) {
738 unsigned int prim = (sarea_priv->vertex_prim & PR_MASK);
739
740 *(u32 *) buf_priv->kernel_virtual =
741 ((GFX_OP_PRIMITIVE | prim | ((used / 4) - 2)));
742
743 if (used & 4) {
744 *(u32 *) ((char *) buf_priv->kernel_virtual + used) = 0;
745 used += 4;
746 }
747
748 i810_unmap_buffer(buf);
749 }
750
751 if (used) {
752 do {
753 if (i < nbox) {
754 BEGIN_LP_RING(4);
755 OUT_RING(GFX_OP_SCISSOR | SC_UPDATE_SCISSOR |
756 SC_ENABLE);
757 OUT_RING(GFX_OP_SCISSOR_INFO);
758 OUT_RING(box[i].x1 | (box[i].y1 << 16));
759 OUT_RING((box[i].x2 -
760 1) | ((box[i].y2 - 1) << 16));
761 ADVANCE_LP_RING();
762 }
763
764 BEGIN_LP_RING(4);
765 OUT_RING(CMD_OP_BATCH_BUFFER);
766 OUT_RING(start | BB1_PROTECTED);
767 OUT_RING(start + used - 4);
768 OUT_RING(0);
769 ADVANCE_LP_RING();
770
771 } while (++i < nbox);
772 }
773
774 if (discard) {
775 dev_priv->counter++;
776
777 (void)cmpxchg(buf_priv->in_use, I810_BUF_CLIENT,
778 I810_BUF_HARDWARE);
779
780 BEGIN_LP_RING(8);
781 OUT_RING(CMD_STORE_DWORD_IDX);
782 OUT_RING(20);
783 OUT_RING(dev_priv->counter);
784 OUT_RING(CMD_STORE_DWORD_IDX);
785 OUT_RING(buf_priv->my_use_idx);
786 OUT_RING(I810_BUF_FREE);
787 OUT_RING(CMD_REPORT_HEAD);
788 OUT_RING(0);
789 ADVANCE_LP_RING();
790 }
791}
792
793static void i810_dma_dispatch_flip(struct drm_device *dev)
794{
795 drm_i810_private_t *dev_priv = dev->dev_private;
796 int pitch = dev_priv->pitch;
797 RING_LOCALS;
798
799 DRM_DEBUG("page=%d pfCurrentPage=%d\n",
800 dev_priv->current_page,
801 dev_priv->sarea_priv->pf_current_page);
802
803 i810_kernel_lost_context(dev);
804
805 BEGIN_LP_RING(2);
806 OUT_RING(INST_PARSER_CLIENT | INST_OP_FLUSH | INST_FLUSH_MAP_CACHE);
807 OUT_RING(0);
808 ADVANCE_LP_RING();
809
810 BEGIN_LP_RING(I810_DEST_SETUP_SIZE + 2);
811
812
813
814
815 OUT_RING(CMD_OP_FRONTBUFFER_INFO | (pitch << 5) );
816 if (dev_priv->current_page == 0) {
817 OUT_RING(dev_priv->back_offset);
818 dev_priv->current_page = 1;
819 } else {
820 OUT_RING(dev_priv->front_offset);
821 dev_priv->current_page = 0;
822 }
823 OUT_RING(0);
824 ADVANCE_LP_RING();
825
826 BEGIN_LP_RING(2);
827 OUT_RING(CMD_OP_WAIT_FOR_EVENT | WAIT_FOR_PLANE_A_FLIP);
828 OUT_RING(0);
829 ADVANCE_LP_RING();
830
831
832
833
834
835 dev_priv->sarea_priv->pf_current_page = dev_priv->current_page;
836
837}
838
839static void i810_dma_quiescent(struct drm_device *dev)
840{
841 drm_i810_private_t *dev_priv = dev->dev_private;
842 RING_LOCALS;
843
844 i810_kernel_lost_context(dev);
845
846 BEGIN_LP_RING(4);
847 OUT_RING(INST_PARSER_CLIENT | INST_OP_FLUSH | INST_FLUSH_MAP_CACHE);
848 OUT_RING(CMD_REPORT_HEAD);
849 OUT_RING(0);
850 OUT_RING(0);
851 ADVANCE_LP_RING();
852
853 i810_wait_ring(dev, dev_priv->ring.Size - 8);
854}
855
856static void i810_flush_queue(struct drm_device *dev)
857{
858 drm_i810_private_t *dev_priv = dev->dev_private;
859 struct drm_device_dma *dma = dev->dma;
860 int i;
861 RING_LOCALS;
862
863 i810_kernel_lost_context(dev);
864
865 BEGIN_LP_RING(2);
866 OUT_RING(CMD_REPORT_HEAD);
867 OUT_RING(0);
868 ADVANCE_LP_RING();
869
870 i810_wait_ring(dev, dev_priv->ring.Size - 8);
871
872 for (i = 0; i < dma->buf_count; i++) {
873 struct drm_buf *buf = dma->buflist[i];
874 drm_i810_buf_priv_t *buf_priv = buf->dev_private;
875
876 int used = cmpxchg(buf_priv->in_use, I810_BUF_HARDWARE,
877 I810_BUF_FREE);
878
879 if (used == I810_BUF_HARDWARE)
880 DRM_DEBUG("reclaimed from HARDWARE\n");
881 if (used == I810_BUF_CLIENT)
882 DRM_DEBUG("still on client\n");
883 }
884
885 return;
886}
887
888
889void i810_driver_reclaim_buffers(struct drm_device *dev,
890 struct drm_file *file_priv)
891{
892 struct drm_device_dma *dma = dev->dma;
893 int i;
894
895 if (!dma)
896 return;
897 if (!dev->dev_private)
898 return;
899 if (!dma->buflist)
900 return;
901
902 i810_flush_queue(dev);
903
904 for (i = 0; i < dma->buf_count; i++) {
905 struct drm_buf *buf = dma->buflist[i];
906 drm_i810_buf_priv_t *buf_priv = buf->dev_private;
907
908 if (buf->file_priv == file_priv && buf_priv) {
909 int used = cmpxchg(buf_priv->in_use, I810_BUF_CLIENT,
910 I810_BUF_FREE);
911
912 if (used == I810_BUF_CLIENT)
913 DRM_DEBUG("reclaimed from client\n");
914 if (buf_priv->currently_mapped == I810_BUF_MAPPED)
915 buf_priv->currently_mapped = I810_BUF_UNMAPPED;
916 }
917 }
918}
919
920static int i810_flush_ioctl(struct drm_device *dev, void *data,
921 struct drm_file *file_priv)
922{
923 LOCK_TEST_WITH_RETURN(dev, file_priv);
924
925 i810_flush_queue(dev);
926 return 0;
927}
928
929static int i810_dma_vertex(struct drm_device *dev, void *data,
930 struct drm_file *file_priv)
931{
932 struct drm_device_dma *dma = dev->dma;
933 drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
934 u32 *hw_status = dev_priv->hw_status_page;
935 drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
936 dev_priv->sarea_priv;
937 drm_i810_vertex_t *vertex = data;
938
939 LOCK_TEST_WITH_RETURN(dev, file_priv);
940
941 DRM_DEBUG("idx %d used %d discard %d\n",
942 vertex->idx, vertex->used, vertex->discard);
943
944 if (vertex->idx < 0 || vertex->idx >= dma->buf_count)
945 return -EINVAL;
946
947 i810_dma_dispatch_vertex(dev,
948 dma->buflist[vertex->idx],
949 vertex->discard, vertex->used);
950
951 sarea_priv->last_enqueue = dev_priv->counter - 1;
952 sarea_priv->last_dispatch = (int)hw_status[5];
953
954 return 0;
955}
956
957static int i810_clear_bufs(struct drm_device *dev, void *data,
958 struct drm_file *file_priv)
959{
960 drm_i810_clear_t *clear = data;
961
962 LOCK_TEST_WITH_RETURN(dev, file_priv);
963
964
965 if (!dev->dev_private)
966 return -EINVAL;
967
968 i810_dma_dispatch_clear(dev, clear->flags,
969 clear->clear_color, clear->clear_depth);
970 return 0;
971}
972
973static int i810_swap_bufs(struct drm_device *dev, void *data,
974 struct drm_file *file_priv)
975{
976 DRM_DEBUG("\n");
977
978 LOCK_TEST_WITH_RETURN(dev, file_priv);
979
980 i810_dma_dispatch_swap(dev);
981 return 0;
982}
983
984static int i810_getage(struct drm_device *dev, void *data,
985 struct drm_file *file_priv)
986{
987 drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
988 u32 *hw_status = dev_priv->hw_status_page;
989 drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
990 dev_priv->sarea_priv;
991
992 sarea_priv->last_dispatch = (int)hw_status[5];
993 return 0;
994}
995
996static int i810_getbuf(struct drm_device *dev, void *data,
997 struct drm_file *file_priv)
998{
999 int retcode = 0;
1000 drm_i810_dma_t *d = data;
1001 drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1002 u32 *hw_status = dev_priv->hw_status_page;
1003 drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
1004 dev_priv->sarea_priv;
1005
1006 LOCK_TEST_WITH_RETURN(dev, file_priv);
1007
1008 d->granted = 0;
1009
1010 retcode = i810_dma_get_buffer(dev, d, file_priv);
1011
1012 DRM_DEBUG("i810_dma: %d returning %d, granted = %d\n",
1013 task_pid_nr(current), retcode, d->granted);
1014
1015 sarea_priv->last_dispatch = (int)hw_status[5];
1016
1017 return retcode;
1018}
1019
1020static int i810_copybuf(struct drm_device *dev, void *data,
1021 struct drm_file *file_priv)
1022{
1023
1024 return 0;
1025}
1026
1027static int i810_docopy(struct drm_device *dev, void *data,
1028 struct drm_file *file_priv)
1029{
1030
1031 return 0;
1032}
1033
1034static void i810_dma_dispatch_mc(struct drm_device *dev, struct drm_buf *buf, int used,
1035 unsigned int last_render)
1036{
1037 drm_i810_private_t *dev_priv = dev->dev_private;
1038 drm_i810_buf_priv_t *buf_priv = buf->dev_private;
1039 drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
1040 unsigned long address = (unsigned long)buf->bus_address;
1041 unsigned long start = address - dev->agp->base;
1042 int u;
1043 RING_LOCALS;
1044
1045 i810_kernel_lost_context(dev);
1046
1047 u = cmpxchg(buf_priv->in_use, I810_BUF_CLIENT, I810_BUF_HARDWARE);
1048 if (u != I810_BUF_CLIENT)
1049 DRM_DEBUG("MC found buffer that isn't mine!\n");
1050
1051 if (used < 0 || used > 4 * 1024)
1052 used = 0;
1053
1054 sarea_priv->dirty = 0x7f;
1055
1056 DRM_DEBUG("addr 0x%lx, used 0x%x\n", address, used);
1057
1058 dev_priv->counter++;
1059 DRM_DEBUG("dispatch counter : %ld\n", dev_priv->counter);
1060 DRM_DEBUG("start : %lx\n", start);
1061 DRM_DEBUG("used : %d\n", used);
1062 DRM_DEBUG("start + used - 4 : %ld\n", start + used - 4);
1063
1064 if (buf_priv->currently_mapped == I810_BUF_MAPPED) {
1065 if (used & 4) {
1066 *(u32 *) ((char *) buf_priv->virtual + used) = 0;
1067 used += 4;
1068 }
1069
1070 i810_unmap_buffer(buf);
1071 }
1072 BEGIN_LP_RING(4);
1073 OUT_RING(CMD_OP_BATCH_BUFFER);
1074 OUT_RING(start | BB1_PROTECTED);
1075 OUT_RING(start + used - 4);
1076 OUT_RING(0);
1077 ADVANCE_LP_RING();
1078
1079 BEGIN_LP_RING(8);
1080 OUT_RING(CMD_STORE_DWORD_IDX);
1081 OUT_RING(buf_priv->my_use_idx);
1082 OUT_RING(I810_BUF_FREE);
1083 OUT_RING(0);
1084
1085 OUT_RING(CMD_STORE_DWORD_IDX);
1086 OUT_RING(16);
1087 OUT_RING(last_render);
1088 OUT_RING(0);
1089 ADVANCE_LP_RING();
1090}
1091
1092static int i810_dma_mc(struct drm_device *dev, void *data,
1093 struct drm_file *file_priv)
1094{
1095 struct drm_device_dma *dma = dev->dma;
1096 drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1097 u32 *hw_status = dev_priv->hw_status_page;
1098 drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
1099 dev_priv->sarea_priv;
1100 drm_i810_mc_t *mc = data;
1101
1102 LOCK_TEST_WITH_RETURN(dev, file_priv);
1103
1104 if (mc->idx >= dma->buf_count || mc->idx < 0)
1105 return -EINVAL;
1106
1107 i810_dma_dispatch_mc(dev, dma->buflist[mc->idx], mc->used,
1108 mc->last_render);
1109
1110 sarea_priv->last_enqueue = dev_priv->counter - 1;
1111 sarea_priv->last_dispatch = (int)hw_status[5];
1112
1113 return 0;
1114}
1115
1116static int i810_rstatus(struct drm_device *dev, void *data,
1117 struct drm_file *file_priv)
1118{
1119 drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1120
1121 return (int)(((u32 *) (dev_priv->hw_status_page))[4]);
1122}
1123
1124static int i810_ov0_info(struct drm_device *dev, void *data,
1125 struct drm_file *file_priv)
1126{
1127 drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1128 drm_i810_overlay_t *ov = data;
1129
1130 ov->offset = dev_priv->overlay_offset;
1131 ov->physical = dev_priv->overlay_physical;
1132
1133 return 0;
1134}
1135
1136static int i810_fstatus(struct drm_device *dev, void *data,
1137 struct drm_file *file_priv)
1138{
1139 drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1140
1141 LOCK_TEST_WITH_RETURN(dev, file_priv);
1142 return I810_READ(0x30008);
1143}
1144
1145static int i810_ov0_flip(struct drm_device *dev, void *data,
1146 struct drm_file *file_priv)
1147{
1148 drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1149
1150 LOCK_TEST_WITH_RETURN(dev, file_priv);
1151
1152
1153 I810_WRITE(0x30000, dev_priv->overlay_physical | 0x80000000);
1154
1155 return 0;
1156}
1157
1158
1159
1160static void i810_do_init_pageflip(struct drm_device *dev)
1161{
1162 drm_i810_private_t *dev_priv = dev->dev_private;
1163
1164 DRM_DEBUG("\n");
1165 dev_priv->page_flipping = 1;
1166 dev_priv->current_page = 0;
1167 dev_priv->sarea_priv->pf_current_page = dev_priv->current_page;
1168}
1169
1170static int i810_do_cleanup_pageflip(struct drm_device *dev)
1171{
1172 drm_i810_private_t *dev_priv = dev->dev_private;
1173
1174 DRM_DEBUG("\n");
1175 if (dev_priv->current_page != 0)
1176 i810_dma_dispatch_flip(dev);
1177
1178 dev_priv->page_flipping = 0;
1179 return 0;
1180}
1181
1182static int i810_flip_bufs(struct drm_device *dev, void *data,
1183 struct drm_file *file_priv)
1184{
1185 drm_i810_private_t *dev_priv = dev->dev_private;
1186
1187 DRM_DEBUG("\n");
1188
1189 LOCK_TEST_WITH_RETURN(dev, file_priv);
1190
1191 if (!dev_priv->page_flipping)
1192 i810_do_init_pageflip(dev);
1193
1194 i810_dma_dispatch_flip(dev);
1195 return 0;
1196}
1197
1198int i810_driver_load(struct drm_device *dev, unsigned long flags)
1199{
1200 dev->agp = drm_agp_init(dev);
1201 if (dev->agp) {
1202 dev->agp->agp_mtrr = arch_phys_wc_add(
1203 dev->agp->agp_info.aper_base,
1204 dev->agp->agp_info.aper_size *
1205 1024 * 1024);
1206 }
1207
1208
1209 if (!dev->agp)
1210 return -EINVAL;
1211
1212 pci_set_master(dev->pdev);
1213
1214 return 0;
1215}
1216
1217void i810_driver_lastclose(struct drm_device *dev)
1218{
1219 i810_dma_cleanup(dev);
1220}
1221
1222void i810_driver_preclose(struct drm_device *dev, struct drm_file *file_priv)
1223{
1224 if (dev->dev_private) {
1225 drm_i810_private_t *dev_priv = dev->dev_private;
1226 if (dev_priv->page_flipping)
1227 i810_do_cleanup_pageflip(dev);
1228 }
1229
1230 if (file_priv->master && file_priv->master->lock.hw_lock) {
1231 drm_legacy_idlelock_take(&file_priv->master->lock);
1232 i810_driver_reclaim_buffers(dev, file_priv);
1233 drm_legacy_idlelock_release(&file_priv->master->lock);
1234 } else {
1235
1236
1237 i810_driver_reclaim_buffers(dev, file_priv);
1238 }
1239
1240}
1241
1242int i810_driver_dma_quiescent(struct drm_device *dev)
1243{
1244 i810_dma_quiescent(dev);
1245 return 0;
1246}
1247
1248const struct drm_ioctl_desc i810_ioctls[] = {
1249 DRM_IOCTL_DEF_DRV(I810_INIT, i810_dma_init, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY|DRM_UNLOCKED),
1250 DRM_IOCTL_DEF_DRV(I810_VERTEX, i810_dma_vertex, DRM_AUTH|DRM_UNLOCKED),
1251 DRM_IOCTL_DEF_DRV(I810_CLEAR, i810_clear_bufs, DRM_AUTH|DRM_UNLOCKED),
1252 DRM_IOCTL_DEF_DRV(I810_FLUSH, i810_flush_ioctl, DRM_AUTH|DRM_UNLOCKED),
1253 DRM_IOCTL_DEF_DRV(I810_GETAGE, i810_getage, DRM_AUTH|DRM_UNLOCKED),
1254 DRM_IOCTL_DEF_DRV(I810_GETBUF, i810_getbuf, DRM_AUTH|DRM_UNLOCKED),
1255 DRM_IOCTL_DEF_DRV(I810_SWAP, i810_swap_bufs, DRM_AUTH|DRM_UNLOCKED),
1256 DRM_IOCTL_DEF_DRV(I810_COPY, i810_copybuf, DRM_AUTH|DRM_UNLOCKED),
1257 DRM_IOCTL_DEF_DRV(I810_DOCOPY, i810_docopy, DRM_AUTH|DRM_UNLOCKED),
1258 DRM_IOCTL_DEF_DRV(I810_OV0INFO, i810_ov0_info, DRM_AUTH|DRM_UNLOCKED),
1259 DRM_IOCTL_DEF_DRV(I810_FSTATUS, i810_fstatus, DRM_AUTH|DRM_UNLOCKED),
1260 DRM_IOCTL_DEF_DRV(I810_OV0FLIP, i810_ov0_flip, DRM_AUTH|DRM_UNLOCKED),
1261 DRM_IOCTL_DEF_DRV(I810_MC, i810_dma_mc, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY|DRM_UNLOCKED),
1262 DRM_IOCTL_DEF_DRV(I810_RSTATUS, i810_rstatus, DRM_AUTH|DRM_UNLOCKED),
1263 DRM_IOCTL_DEF_DRV(I810_FLIP, i810_flip_bufs, DRM_AUTH|DRM_UNLOCKED),
1264};
1265
1266int i810_max_ioctl = ARRAY_SIZE(i810_ioctls);
1267
