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Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-serial
[mirror_ubuntu-hirsute-kernel.git] / drivers / char / drm / i810_dma.c
1 /* i810_dma.c -- DMA support for the i810 -*- 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 *
31 */
32
33 #include "drmP.h"
34 #include "drm.h"
35 #include "i810_drm.h"
36 #include "i810_drv.h"
37 #include <linux/interrupt.h> /* For task queue support */
38 #include <linux/delay.h>
39 #include <linux/pagemap.h>
40
41 #define I810_BUF_FREE 2
42 #define I810_BUF_CLIENT 1
43 #define I810_BUF_HARDWARE 0
44
45 #define I810_BUF_UNMAPPED 0
46 #define I810_BUF_MAPPED 1
47
48 static drm_buf_t *i810_freelist_get(drm_device_t * dev)
49 {
50 drm_device_dma_t *dma = dev->dma;
51 int i;
52 int used;
53
54 /* Linear search might not be the best solution */
55
56 for (i = 0; i < dma->buf_count; i++) {
57 drm_buf_t *buf = dma->buflist[i];
58 drm_i810_buf_priv_t *buf_priv = buf->dev_private;
59 /* In use is already a pointer */
60 used = cmpxchg(buf_priv->in_use, I810_BUF_FREE,
61 I810_BUF_CLIENT);
62 if (used == I810_BUF_FREE) {
63 return buf;
64 }
65 }
66 return NULL;
67 }
68
69 /* This should only be called if the buffer is not sent to the hardware
70 * yet, the hardware updates in use for us once its on the ring buffer.
71 */
72
73 static int i810_freelist_put(drm_device_t * dev, drm_buf_t * buf)
74 {
75 drm_i810_buf_priv_t *buf_priv = buf->dev_private;
76 int used;
77
78 /* In use is already a pointer */
79 used = cmpxchg(buf_priv->in_use, I810_BUF_CLIENT, I810_BUF_FREE);
80 if (used != I810_BUF_CLIENT) {
81 DRM_ERROR("Freeing buffer thats not in use : %d\n", buf->idx);
82 return -EINVAL;
83 }
84
85 return 0;
86 }
87
88 static int i810_mmap_buffers(struct file *filp, struct vm_area_struct *vma)
89 {
90 drm_file_t *priv = filp->private_data;
91 drm_device_t *dev;
92 drm_i810_private_t *dev_priv;
93 drm_buf_t *buf;
94 drm_i810_buf_priv_t *buf_priv;
95
96 lock_kernel();
97 dev = priv->head->dev;
98 dev_priv = dev->dev_private;
99 buf = dev_priv->mmap_buffer;
100 buf_priv = buf->dev_private;
101
102 vma->vm_flags |= (VM_IO | VM_DONTCOPY);
103 vma->vm_file = filp;
104
105 buf_priv->currently_mapped = I810_BUF_MAPPED;
106 unlock_kernel();
107
108 if (io_remap_pfn_range(vma, vma->vm_start,
109 vma->vm_pgoff,
110 vma->vm_end - vma->vm_start, vma->vm_page_prot))
111 return -EAGAIN;
112 return 0;
113 }
114
115 static struct file_operations i810_buffer_fops = {
116 .open = drm_open,
117 .release = drm_release,
118 .ioctl = drm_ioctl,
119 .mmap = i810_mmap_buffers,
120 .fasync = drm_fasync,
121 };
122
123 static int i810_map_buffer(drm_buf_t * buf, struct file *filp)
124 {
125 drm_file_t *priv = filp->private_data;
126 drm_device_t *dev = priv->head->dev;
127 drm_i810_buf_priv_t *buf_priv = buf->dev_private;
128 drm_i810_private_t *dev_priv = dev->dev_private;
129 const struct file_operations *old_fops;
130 int retcode = 0;
131
132 if (buf_priv->currently_mapped == I810_BUF_MAPPED)
133 return -EINVAL;
134
135 down_write(&current->mm->mmap_sem);
136 old_fops = filp->f_op;
137 filp->f_op = &i810_buffer_fops;
138 dev_priv->mmap_buffer = buf;
139 buf_priv->virtual = (void *)do_mmap(filp, 0, buf->total,
140 PROT_READ | PROT_WRITE,
141 MAP_SHARED, buf->bus_address);
142 dev_priv->mmap_buffer = NULL;
143 filp->f_op = old_fops;
144 if (IS_ERR(buf_priv->virtual)) {
145 /* Real error */
146 DRM_ERROR("mmap error\n");
147 retcode = PTR_ERR(buf_priv->virtual);
148 buf_priv->virtual = NULL;
149 }
150 up_write(&current->mm->mmap_sem);
151
152 return retcode;
153 }
154
155 static int i810_unmap_buffer(drm_buf_t * buf)
156 {
157 drm_i810_buf_priv_t *buf_priv = buf->dev_private;
158 int retcode = 0;
159
160 if (buf_priv->currently_mapped != I810_BUF_MAPPED)
161 return -EINVAL;
162
163 down_write(&current->mm->mmap_sem);
164 retcode = do_munmap(current->mm,
165 (unsigned long)buf_priv->virtual,
166 (size_t) buf->total);
167 up_write(&current->mm->mmap_sem);
168
169 buf_priv->currently_mapped = I810_BUF_UNMAPPED;
170 buf_priv->virtual = NULL;
171
172 return retcode;
173 }
174
175 static int i810_dma_get_buffer(drm_device_t * dev, drm_i810_dma_t * d,
176 struct file *filp)
177 {
178 drm_buf_t *buf;
179 drm_i810_buf_priv_t *buf_priv;
180 int retcode = 0;
181
182 buf = i810_freelist_get(dev);
183 if (!buf) {
184 retcode = -ENOMEM;
185 DRM_DEBUG("retcode=%d\n", retcode);
186 return retcode;
187 }
188
189 retcode = i810_map_buffer(buf, filp);
190 if (retcode) {
191 i810_freelist_put(dev, buf);
192 DRM_ERROR("mapbuf failed, retcode %d\n", retcode);
193 return retcode;
194 }
195 buf->filp = filp;
196 buf_priv = buf->dev_private;
197 d->granted = 1;
198 d->request_idx = buf->idx;
199 d->request_size = buf->total;
200 d->virtual = buf_priv->virtual;
201
202 return retcode;
203 }
204
205 static int i810_dma_cleanup(drm_device_t * dev)
206 {
207 drm_device_dma_t *dma = dev->dma;
208
209 /* Make sure interrupts are disabled here because the uninstall ioctl
210 * may not have been called from userspace and after dev_private
211 * is freed, it's too late.
212 */
213 if (drm_core_check_feature(dev, DRIVER_HAVE_IRQ) && dev->irq_enabled)
214 drm_irq_uninstall(dev);
215
216 if (dev->dev_private) {
217 int i;
218 drm_i810_private_t *dev_priv =
219 (drm_i810_private_t *) dev->dev_private;
220
221 if (dev_priv->ring.virtual_start) {
222 drm_ioremapfree((void *)dev_priv->ring.virtual_start,
223 dev_priv->ring.Size, dev);
224 }
225 if (dev_priv->hw_status_page) {
226 pci_free_consistent(dev->pdev, PAGE_SIZE,
227 dev_priv->hw_status_page,
228 dev_priv->dma_status_page);
229 /* Need to rewrite hardware status page */
230 I810_WRITE(0x02080, 0x1ffff000);
231 }
232 drm_free(dev->dev_private, sizeof(drm_i810_private_t),
233 DRM_MEM_DRIVER);
234 dev->dev_private = NULL;
235
236 for (i = 0; i < dma->buf_count; i++) {
237 drm_buf_t *buf = dma->buflist[i];
238 drm_i810_buf_priv_t *buf_priv = buf->dev_private;
239 if (buf_priv->kernel_virtual && buf->total)
240 drm_ioremapfree(buf_priv->kernel_virtual,
241 buf->total, dev);
242 }
243 }
244 return 0;
245 }
246
247 static int i810_wait_ring(drm_device_t * dev, int n)
248 {
249 drm_i810_private_t *dev_priv = dev->dev_private;
250 drm_i810_ring_buffer_t *ring = &(dev_priv->ring);
251 int iters = 0;
252 unsigned long end;
253 unsigned int last_head = I810_READ(LP_RING + RING_HEAD) & HEAD_ADDR;
254
255 end = jiffies + (HZ * 3);
256 while (ring->space < n) {
257 ring->head = I810_READ(LP_RING + RING_HEAD) & HEAD_ADDR;
258 ring->space = ring->head - (ring->tail + 8);
259 if (ring->space < 0)
260 ring->space += ring->Size;
261
262 if (ring->head != last_head) {
263 end = jiffies + (HZ * 3);
264 last_head = ring->head;
265 }
266
267 iters++;
268 if (time_before(end, jiffies)) {
269 DRM_ERROR("space: %d wanted %d\n", ring->space, n);
270 DRM_ERROR("lockup\n");
271 goto out_wait_ring;
272 }
273 udelay(1);
274 }
275
276 out_wait_ring:
277 return iters;
278 }
279
280 static void i810_kernel_lost_context(drm_device_t * dev)
281 {
282 drm_i810_private_t *dev_priv = dev->dev_private;
283 drm_i810_ring_buffer_t *ring = &(dev_priv->ring);
284
285 ring->head = I810_READ(LP_RING + RING_HEAD) & HEAD_ADDR;
286 ring->tail = I810_READ(LP_RING + RING_TAIL);
287 ring->space = ring->head - (ring->tail + 8);
288 if (ring->space < 0)
289 ring->space += ring->Size;
290 }
291
292 static int i810_freelist_init(drm_device_t * dev, drm_i810_private_t * dev_priv)
293 {
294 drm_device_dma_t *dma = dev->dma;
295 int my_idx = 24;
296 u32 *hw_status = (u32 *) (dev_priv->hw_status_page + my_idx);
297 int i;
298
299 if (dma->buf_count > 1019) {
300 /* Not enough space in the status page for the freelist */
301 return -EINVAL;
302 }
303
304 for (i = 0; i < dma->buf_count; i++) {
305 drm_buf_t *buf = dma->buflist[i];
306 drm_i810_buf_priv_t *buf_priv = buf->dev_private;
307
308 buf_priv->in_use = hw_status++;
309 buf_priv->my_use_idx = my_idx;
310 my_idx += 4;
311
312 *buf_priv->in_use = I810_BUF_FREE;
313
314 buf_priv->kernel_virtual = drm_ioremap(buf->bus_address,
315 buf->total, dev);
316 }
317 return 0;
318 }
319
320 static int i810_dma_initialize(drm_device_t * dev,
321 drm_i810_private_t * dev_priv,
322 drm_i810_init_t * init)
323 {
324 struct list_head *list;
325
326 memset(dev_priv, 0, sizeof(drm_i810_private_t));
327
328 list_for_each(list, &dev->maplist->head) {
329 drm_map_list_t *r_list = list_entry(list, drm_map_list_t, head);
330 if (r_list->map &&
331 r_list->map->type == _DRM_SHM &&
332 r_list->map->flags & _DRM_CONTAINS_LOCK) {
333 dev_priv->sarea_map = r_list->map;
334 break;
335 }
336 }
337 if (!dev_priv->sarea_map) {
338 dev->dev_private = (void *)dev_priv;
339 i810_dma_cleanup(dev);
340 DRM_ERROR("can not find sarea!\n");
341 return -EINVAL;
342 }
343 dev_priv->mmio_map = drm_core_findmap(dev, init->mmio_offset);
344 if (!dev_priv->mmio_map) {
345 dev->dev_private = (void *)dev_priv;
346 i810_dma_cleanup(dev);
347 DRM_ERROR("can not find mmio map!\n");
348 return -EINVAL;
349 }
350 dev->agp_buffer_token = init->buffers_offset;
351 dev->agp_buffer_map = drm_core_findmap(dev, init->buffers_offset);
352 if (!dev->agp_buffer_map) {
353 dev->dev_private = (void *)dev_priv;
354 i810_dma_cleanup(dev);
355 DRM_ERROR("can not find dma buffer map!\n");
356 return -EINVAL;
357 }
358
359 dev_priv->sarea_priv = (drm_i810_sarea_t *)
360 ((u8 *) dev_priv->sarea_map->handle + init->sarea_priv_offset);
361
362 dev_priv->ring.Start = init->ring_start;
363 dev_priv->ring.End = init->ring_end;
364 dev_priv->ring.Size = init->ring_size;
365
366 dev_priv->ring.virtual_start = drm_ioremap(dev->agp->base +
367 init->ring_start,
368 init->ring_size, dev);
369
370 if (dev_priv->ring.virtual_start == NULL) {
371 dev->dev_private = (void *)dev_priv;
372 i810_dma_cleanup(dev);
373 DRM_ERROR("can not ioremap virtual address for"
374 " ring buffer\n");
375 return -ENOMEM;
376 }
377
378 dev_priv->ring.tail_mask = dev_priv->ring.Size - 1;
379
380 dev_priv->w = init->w;
381 dev_priv->h = init->h;
382 dev_priv->pitch = init->pitch;
383 dev_priv->back_offset = init->back_offset;
384 dev_priv->depth_offset = init->depth_offset;
385 dev_priv->front_offset = init->front_offset;
386
387 dev_priv->overlay_offset = init->overlay_offset;
388 dev_priv->overlay_physical = init->overlay_physical;
389
390 dev_priv->front_di1 = init->front_offset | init->pitch_bits;
391 dev_priv->back_di1 = init->back_offset | init->pitch_bits;
392 dev_priv->zi1 = init->depth_offset | init->pitch_bits;
393
394 /* Program Hardware Status Page */
395 dev_priv->hw_status_page =
396 pci_alloc_consistent(dev->pdev, PAGE_SIZE,
397 &dev_priv->dma_status_page);
398 if (!dev_priv->hw_status_page) {
399 dev->dev_private = (void *)dev_priv;
400 i810_dma_cleanup(dev);
401 DRM_ERROR("Can not allocate hardware status page\n");
402 return -ENOMEM;
403 }
404 memset(dev_priv->hw_status_page, 0, PAGE_SIZE);
405 DRM_DEBUG("hw status page @ %p\n", dev_priv->hw_status_page);
406
407 I810_WRITE(0x02080, dev_priv->dma_status_page);
408 DRM_DEBUG("Enabled hardware status page\n");
409
410 /* Now we need to init our freelist */
411 if (i810_freelist_init(dev, dev_priv) != 0) {
412 dev->dev_private = (void *)dev_priv;
413 i810_dma_cleanup(dev);
414 DRM_ERROR("Not enough space in the status page for"
415 " the freelist\n");
416 return -ENOMEM;
417 }
418 dev->dev_private = (void *)dev_priv;
419
420 return 0;
421 }
422
423 /* i810 DRM version 1.1 used a smaller init structure with different
424 * ordering of values than is currently used (drm >= 1.2). There is
425 * no defined way to detect the XFree version to correct this problem,
426 * however by checking using this procedure we can detect the correct
427 * thing to do.
428 *
429 * #1 Read the Smaller init structure from user-space
430 * #2 Verify the overlay_physical is a valid physical address, or NULL
431 * If it isn't then we have a v1.1 client. Fix up params.
432 * If it is, then we have a 1.2 client... get the rest of the data.
433 */
434 static int i810_dma_init_compat(drm_i810_init_t * init, unsigned long arg)
435 {
436
437 /* Get v1.1 init data */
438 if (copy_from_user(init, (drm_i810_pre12_init_t __user *) arg,
439 sizeof(drm_i810_pre12_init_t))) {
440 return -EFAULT;
441 }
442
443 if ((!init->overlay_physical) || (init->overlay_physical > 4096)) {
444
445 /* This is a v1.2 client, just get the v1.2 init data */
446 DRM_INFO("Using POST v1.2 init.\n");
447 if (copy_from_user(init, (drm_i810_init_t __user *) arg,
448 sizeof(drm_i810_init_t))) {
449 return -EFAULT;
450 }
451 } else {
452
453 /* This is a v1.1 client, fix the params */
454 DRM_INFO("Using PRE v1.2 init.\n");
455 init->pitch_bits = init->h;
456 init->pitch = init->w;
457 init->h = init->overlay_physical;
458 init->w = init->overlay_offset;
459 init->overlay_physical = 0;
460 init->overlay_offset = 0;
461 }
462
463 return 0;
464 }
465
466 static int i810_dma_init(struct inode *inode, struct file *filp,
467 unsigned int cmd, unsigned long arg)
468 {
469 drm_file_t *priv = filp->private_data;
470 drm_device_t *dev = priv->head->dev;
471 drm_i810_private_t *dev_priv;
472 drm_i810_init_t init;
473 int retcode = 0;
474
475 /* Get only the init func */
476 if (copy_from_user
477 (&init, (void __user *)arg, sizeof(drm_i810_init_func_t)))
478 return -EFAULT;
479
480 switch (init.func) {
481 case I810_INIT_DMA:
482 /* This case is for backward compatibility. It
483 * handles XFree 4.1.0 and 4.2.0, and has to
484 * do some parameter checking as described below.
485 * It will someday go away.
486 */
487 retcode = i810_dma_init_compat(&init, arg);
488 if (retcode)
489 return retcode;
490
491 dev_priv = drm_alloc(sizeof(drm_i810_private_t),
492 DRM_MEM_DRIVER);
493 if (dev_priv == NULL)
494 return -ENOMEM;
495 retcode = i810_dma_initialize(dev, dev_priv, &init);
496 break;
497
498 default:
499 case I810_INIT_DMA_1_4:
500 DRM_INFO("Using v1.4 init.\n");
501 if (copy_from_user(&init, (drm_i810_init_t __user *) arg,
502 sizeof(drm_i810_init_t))) {
503 return -EFAULT;
504 }
505 dev_priv = drm_alloc(sizeof(drm_i810_private_t),
506 DRM_MEM_DRIVER);
507 if (dev_priv == NULL)
508 return -ENOMEM;
509 retcode = i810_dma_initialize(dev, dev_priv, &init);
510 break;
511
512 case I810_CLEANUP_DMA:
513 DRM_INFO("DMA Cleanup\n");
514 retcode = i810_dma_cleanup(dev);
515 break;
516 }
517
518 return retcode;
519 }
520
521 /* Most efficient way to verify state for the i810 is as it is
522 * emitted. Non-conformant state is silently dropped.
523 *
524 * Use 'volatile' & local var tmp to force the emitted values to be
525 * identical to the verified ones.
526 */
527 static void i810EmitContextVerified(drm_device_t * dev,
528 volatile unsigned int *code)
529 {
530 drm_i810_private_t *dev_priv = dev->dev_private;
531 int i, j = 0;
532 unsigned int tmp;
533 RING_LOCALS;
534
535 BEGIN_LP_RING(I810_CTX_SETUP_SIZE);
536
537 OUT_RING(GFX_OP_COLOR_FACTOR);
538 OUT_RING(code[I810_CTXREG_CF1]);
539
540 OUT_RING(GFX_OP_STIPPLE);
541 OUT_RING(code[I810_CTXREG_ST1]);
542
543 for (i = 4; i < I810_CTX_SETUP_SIZE; i++) {
544 tmp = code[i];
545
546 if ((tmp & (7 << 29)) == (3 << 29) &&
547 (tmp & (0x1f << 24)) < (0x1d << 24)) {
548 OUT_RING(tmp);
549 j++;
550 } else
551 printk("constext state dropped!!!\n");
552 }
553
554 if (j & 1)
555 OUT_RING(0);
556
557 ADVANCE_LP_RING();
558 }
559
560 static void i810EmitTexVerified(drm_device_t * dev, volatile unsigned int *code)
561 {
562 drm_i810_private_t *dev_priv = dev->dev_private;
563 int i, j = 0;
564 unsigned int tmp;
565 RING_LOCALS;
566
567 BEGIN_LP_RING(I810_TEX_SETUP_SIZE);
568
569 OUT_RING(GFX_OP_MAP_INFO);
570 OUT_RING(code[I810_TEXREG_MI1]);
571 OUT_RING(code[I810_TEXREG_MI2]);
572 OUT_RING(code[I810_TEXREG_MI3]);
573
574 for (i = 4; i < I810_TEX_SETUP_SIZE; i++) {
575 tmp = code[i];
576
577 if ((tmp & (7 << 29)) == (3 << 29) &&
578 (tmp & (0x1f << 24)) < (0x1d << 24)) {
579 OUT_RING(tmp);
580 j++;
581 } else
582 printk("texture state dropped!!!\n");
583 }
584
585 if (j & 1)
586 OUT_RING(0);
587
588 ADVANCE_LP_RING();
589 }
590
591 /* Need to do some additional checking when setting the dest buffer.
592 */
593 static void i810EmitDestVerified(drm_device_t * dev,
594 volatile unsigned int *code)
595 {
596 drm_i810_private_t *dev_priv = dev->dev_private;
597 unsigned int tmp;
598 RING_LOCALS;
599
600 BEGIN_LP_RING(I810_DEST_SETUP_SIZE + 2);
601
602 tmp = code[I810_DESTREG_DI1];
603 if (tmp == dev_priv->front_di1 || tmp == dev_priv->back_di1) {
604 OUT_RING(CMD_OP_DESTBUFFER_INFO);
605 OUT_RING(tmp);
606 } else
607 DRM_DEBUG("bad di1 %x (allow %x or %x)\n",
608 tmp, dev_priv->front_di1, dev_priv->back_di1);
609
610 /* invarient:
611 */
612 OUT_RING(CMD_OP_Z_BUFFER_INFO);
613 OUT_RING(dev_priv->zi1);
614
615 OUT_RING(GFX_OP_DESTBUFFER_VARS);
616 OUT_RING(code[I810_DESTREG_DV1]);
617
618 OUT_RING(GFX_OP_DRAWRECT_INFO);
619 OUT_RING(code[I810_DESTREG_DR1]);
620 OUT_RING(code[I810_DESTREG_DR2]);
621 OUT_RING(code[I810_DESTREG_DR3]);
622 OUT_RING(code[I810_DESTREG_DR4]);
623 OUT_RING(0);
624
625 ADVANCE_LP_RING();
626 }
627
628 static void i810EmitState(drm_device_t * dev)
629 {
630 drm_i810_private_t *dev_priv = dev->dev_private;
631 drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
632 unsigned int dirty = sarea_priv->dirty;
633
634 DRM_DEBUG("%s %x\n", __FUNCTION__, dirty);
635
636 if (dirty & I810_UPLOAD_BUFFERS) {
637 i810EmitDestVerified(dev, sarea_priv->BufferState);
638 sarea_priv->dirty &= ~I810_UPLOAD_BUFFERS;
639 }
640
641 if (dirty & I810_UPLOAD_CTX) {
642 i810EmitContextVerified(dev, sarea_priv->ContextState);
643 sarea_priv->dirty &= ~I810_UPLOAD_CTX;
644 }
645
646 if (dirty & I810_UPLOAD_TEX0) {
647 i810EmitTexVerified(dev, sarea_priv->TexState[0]);
648 sarea_priv->dirty &= ~I810_UPLOAD_TEX0;
649 }
650
651 if (dirty & I810_UPLOAD_TEX1) {
652 i810EmitTexVerified(dev, sarea_priv->TexState[1]);
653 sarea_priv->dirty &= ~I810_UPLOAD_TEX1;
654 }
655 }
656
657 /* need to verify
658 */
659 static void i810_dma_dispatch_clear(drm_device_t * dev, int flags,
660 unsigned int clear_color,
661 unsigned int clear_zval)
662 {
663 drm_i810_private_t *dev_priv = dev->dev_private;
664 drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
665 int nbox = sarea_priv->nbox;
666 drm_clip_rect_t *pbox = sarea_priv->boxes;
667 int pitch = dev_priv->pitch;
668 int cpp = 2;
669 int i;
670 RING_LOCALS;
671
672 if (dev_priv->current_page == 1) {
673 unsigned int tmp = flags;
674
675 flags &= ~(I810_FRONT | I810_BACK);
676 if (tmp & I810_FRONT)
677 flags |= I810_BACK;
678 if (tmp & I810_BACK)
679 flags |= I810_FRONT;
680 }
681
682 i810_kernel_lost_context(dev);
683
684 if (nbox > I810_NR_SAREA_CLIPRECTS)
685 nbox = I810_NR_SAREA_CLIPRECTS;
686
687 for (i = 0; i < nbox; i++, pbox++) {
688 unsigned int x = pbox->x1;
689 unsigned int y = pbox->y1;
690 unsigned int width = (pbox->x2 - x) * cpp;
691 unsigned int height = pbox->y2 - y;
692 unsigned int start = y * pitch + x * cpp;
693
694 if (pbox->x1 > pbox->x2 ||
695 pbox->y1 > pbox->y2 ||
696 pbox->x2 > dev_priv->w || pbox->y2 > dev_priv->h)
697 continue;
698
699 if (flags & I810_FRONT) {
700 BEGIN_LP_RING(6);
701 OUT_RING(BR00_BITBLT_CLIENT | BR00_OP_COLOR_BLT | 0x3);
702 OUT_RING(BR13_SOLID_PATTERN | (0xF0 << 16) | pitch);
703 OUT_RING((height << 16) | width);
704 OUT_RING(start);
705 OUT_RING(clear_color);
706 OUT_RING(0);
707 ADVANCE_LP_RING();
708 }
709
710 if (flags & I810_BACK) {
711 BEGIN_LP_RING(6);
712 OUT_RING(BR00_BITBLT_CLIENT | BR00_OP_COLOR_BLT | 0x3);
713 OUT_RING(BR13_SOLID_PATTERN | (0xF0 << 16) | pitch);
714 OUT_RING((height << 16) | width);
715 OUT_RING(dev_priv->back_offset + start);
716 OUT_RING(clear_color);
717 OUT_RING(0);
718 ADVANCE_LP_RING();
719 }
720
721 if (flags & I810_DEPTH) {
722 BEGIN_LP_RING(6);
723 OUT_RING(BR00_BITBLT_CLIENT | BR00_OP_COLOR_BLT | 0x3);
724 OUT_RING(BR13_SOLID_PATTERN | (0xF0 << 16) | pitch);
725 OUT_RING((height << 16) | width);
726 OUT_RING(dev_priv->depth_offset + start);
727 OUT_RING(clear_zval);
728 OUT_RING(0);
729 ADVANCE_LP_RING();
730 }
731 }
732 }
733
734 static void i810_dma_dispatch_swap(drm_device_t * dev)
735 {
736 drm_i810_private_t *dev_priv = dev->dev_private;
737 drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
738 int nbox = sarea_priv->nbox;
739 drm_clip_rect_t *pbox = sarea_priv->boxes;
740 int pitch = dev_priv->pitch;
741 int cpp = 2;
742 int i;
743 RING_LOCALS;
744
745 DRM_DEBUG("swapbuffers\n");
746
747 i810_kernel_lost_context(dev);
748
749 if (nbox > I810_NR_SAREA_CLIPRECTS)
750 nbox = I810_NR_SAREA_CLIPRECTS;
751
752 for (i = 0; i < nbox; i++, pbox++) {
753 unsigned int w = pbox->x2 - pbox->x1;
754 unsigned int h = pbox->y2 - pbox->y1;
755 unsigned int dst = pbox->x1 * cpp + pbox->y1 * pitch;
756 unsigned int start = dst;
757
758 if (pbox->x1 > pbox->x2 ||
759 pbox->y1 > pbox->y2 ||
760 pbox->x2 > dev_priv->w || pbox->y2 > dev_priv->h)
761 continue;
762
763 BEGIN_LP_RING(6);
764 OUT_RING(BR00_BITBLT_CLIENT | BR00_OP_SRC_COPY_BLT | 0x4);
765 OUT_RING(pitch | (0xCC << 16));
766 OUT_RING((h << 16) | (w * cpp));
767 if (dev_priv->current_page == 0)
768 OUT_RING(dev_priv->front_offset + start);
769 else
770 OUT_RING(dev_priv->back_offset + start);
771 OUT_RING(pitch);
772 if (dev_priv->current_page == 0)
773 OUT_RING(dev_priv->back_offset + start);
774 else
775 OUT_RING(dev_priv->front_offset + start);
776 ADVANCE_LP_RING();
777 }
778 }
779
780 static void i810_dma_dispatch_vertex(drm_device_t * dev,
781 drm_buf_t * buf, int discard, int used)
782 {
783 drm_i810_private_t *dev_priv = dev->dev_private;
784 drm_i810_buf_priv_t *buf_priv = buf->dev_private;
785 drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
786 drm_clip_rect_t *box = sarea_priv->boxes;
787 int nbox = sarea_priv->nbox;
788 unsigned long address = (unsigned long)buf->bus_address;
789 unsigned long start = address - dev->agp->base;
790 int i = 0;
791 RING_LOCALS;
792
793 i810_kernel_lost_context(dev);
794
795 if (nbox > I810_NR_SAREA_CLIPRECTS)
796 nbox = I810_NR_SAREA_CLIPRECTS;
797
798 if (used > 4 * 1024)
799 used = 0;
800
801 if (sarea_priv->dirty)
802 i810EmitState(dev);
803
804 if (buf_priv->currently_mapped == I810_BUF_MAPPED) {
805 unsigned int prim = (sarea_priv->vertex_prim & PR_MASK);
806
807 *(u32 *) buf_priv->kernel_virtual =
808 ((GFX_OP_PRIMITIVE | prim | ((used / 4) - 2)));
809
810 if (used & 4) {
811 *(u32 *) ((char *) buf_priv->kernel_virtual + used) = 0;
812 used += 4;
813 }
814
815 i810_unmap_buffer(buf);
816 }
817
818 if (used) {
819 do {
820 if (i < nbox) {
821 BEGIN_LP_RING(4);
822 OUT_RING(GFX_OP_SCISSOR | SC_UPDATE_SCISSOR |
823 SC_ENABLE);
824 OUT_RING(GFX_OP_SCISSOR_INFO);
825 OUT_RING(box[i].x1 | (box[i].y1 << 16));
826 OUT_RING((box[i].x2 -
827 1) | ((box[i].y2 - 1) << 16));
828 ADVANCE_LP_RING();
829 }
830
831 BEGIN_LP_RING(4);
832 OUT_RING(CMD_OP_BATCH_BUFFER);
833 OUT_RING(start | BB1_PROTECTED);
834 OUT_RING(start + used - 4);
835 OUT_RING(0);
836 ADVANCE_LP_RING();
837
838 } while (++i < nbox);
839 }
840
841 if (discard) {
842 dev_priv->counter++;
843
844 (void)cmpxchg(buf_priv->in_use, I810_BUF_CLIENT,
845 I810_BUF_HARDWARE);
846
847 BEGIN_LP_RING(8);
848 OUT_RING(CMD_STORE_DWORD_IDX);
849 OUT_RING(20);
850 OUT_RING(dev_priv->counter);
851 OUT_RING(CMD_STORE_DWORD_IDX);
852 OUT_RING(buf_priv->my_use_idx);
853 OUT_RING(I810_BUF_FREE);
854 OUT_RING(CMD_REPORT_HEAD);
855 OUT_RING(0);
856 ADVANCE_LP_RING();
857 }
858 }
859
860 static void i810_dma_dispatch_flip(drm_device_t * dev)
861 {
862 drm_i810_private_t *dev_priv = dev->dev_private;
863 int pitch = dev_priv->pitch;
864 RING_LOCALS;
865
866 DRM_DEBUG("%s: page=%d pfCurrentPage=%d\n",
867 __FUNCTION__,
868 dev_priv->current_page,
869 dev_priv->sarea_priv->pf_current_page);
870
871 i810_kernel_lost_context(dev);
872
873 BEGIN_LP_RING(2);
874 OUT_RING(INST_PARSER_CLIENT | INST_OP_FLUSH | INST_FLUSH_MAP_CACHE);
875 OUT_RING(0);
876 ADVANCE_LP_RING();
877
878 BEGIN_LP_RING(I810_DEST_SETUP_SIZE + 2);
879 /* On i815 at least ASYNC is buggy */
880 /* pitch<<5 is from 11.2.8 p158,
881 its the pitch / 8 then left shifted 8,
882 so (pitch >> 3) << 8 */
883 OUT_RING(CMD_OP_FRONTBUFFER_INFO | (pitch << 5) /*| ASYNC_FLIP */ );
884 if (dev_priv->current_page == 0) {
885 OUT_RING(dev_priv->back_offset);
886 dev_priv->current_page = 1;
887 } else {
888 OUT_RING(dev_priv->front_offset);
889 dev_priv->current_page = 0;
890 }
891 OUT_RING(0);
892 ADVANCE_LP_RING();
893
894 BEGIN_LP_RING(2);
895 OUT_RING(CMD_OP_WAIT_FOR_EVENT | WAIT_FOR_PLANE_A_FLIP);
896 OUT_RING(0);
897 ADVANCE_LP_RING();
898
899 /* Increment the frame counter. The client-side 3D driver must
900 * throttle the framerate by waiting for this value before
901 * performing the swapbuffer ioctl.
902 */
903 dev_priv->sarea_priv->pf_current_page = dev_priv->current_page;
904
905 }
906
907 static void i810_dma_quiescent(drm_device_t * dev)
908 {
909 drm_i810_private_t *dev_priv = dev->dev_private;
910 RING_LOCALS;
911
912 /* printk("%s\n", __FUNCTION__); */
913
914 i810_kernel_lost_context(dev);
915
916 BEGIN_LP_RING(4);
917 OUT_RING(INST_PARSER_CLIENT | INST_OP_FLUSH | INST_FLUSH_MAP_CACHE);
918 OUT_RING(CMD_REPORT_HEAD);
919 OUT_RING(0);
920 OUT_RING(0);
921 ADVANCE_LP_RING();
922
923 i810_wait_ring(dev, dev_priv->ring.Size - 8);
924 }
925
926 static int i810_flush_queue(drm_device_t * dev)
927 {
928 drm_i810_private_t *dev_priv = dev->dev_private;
929 drm_device_dma_t *dma = dev->dma;
930 int i, ret = 0;
931 RING_LOCALS;
932
933 /* printk("%s\n", __FUNCTION__); */
934
935 i810_kernel_lost_context(dev);
936
937 BEGIN_LP_RING(2);
938 OUT_RING(CMD_REPORT_HEAD);
939 OUT_RING(0);
940 ADVANCE_LP_RING();
941
942 i810_wait_ring(dev, dev_priv->ring.Size - 8);
943
944 for (i = 0; i < dma->buf_count; i++) {
945 drm_buf_t *buf = dma->buflist[i];
946 drm_i810_buf_priv_t *buf_priv = buf->dev_private;
947
948 int used = cmpxchg(buf_priv->in_use, I810_BUF_HARDWARE,
949 I810_BUF_FREE);
950
951 if (used == I810_BUF_HARDWARE)
952 DRM_DEBUG("reclaimed from HARDWARE\n");
953 if (used == I810_BUF_CLIENT)
954 DRM_DEBUG("still on client\n");
955 }
956
957 return ret;
958 }
959
960 /* Must be called with the lock held */
961 static void i810_reclaim_buffers(drm_device_t * dev, struct file *filp)
962 {
963 drm_device_dma_t *dma = dev->dma;
964 int i;
965
966 if (!dma)
967 return;
968 if (!dev->dev_private)
969 return;
970 if (!dma->buflist)
971 return;
972
973 i810_flush_queue(dev);
974
975 for (i = 0; i < dma->buf_count; i++) {
976 drm_buf_t *buf = dma->buflist[i];
977 drm_i810_buf_priv_t *buf_priv = buf->dev_private;
978
979 if (buf->filp == filp && buf_priv) {
980 int used = cmpxchg(buf_priv->in_use, I810_BUF_CLIENT,
981 I810_BUF_FREE);
982
983 if (used == I810_BUF_CLIENT)
984 DRM_DEBUG("reclaimed from client\n");
985 if (buf_priv->currently_mapped == I810_BUF_MAPPED)
986 buf_priv->currently_mapped = I810_BUF_UNMAPPED;
987 }
988 }
989 }
990
991 static int i810_flush_ioctl(struct inode *inode, struct file *filp,
992 unsigned int cmd, unsigned long arg)
993 {
994 drm_file_t *priv = filp->private_data;
995 drm_device_t *dev = priv->head->dev;
996
997 LOCK_TEST_WITH_RETURN(dev, filp);
998
999 i810_flush_queue(dev);
1000 return 0;
1001 }
1002
1003 static int i810_dma_vertex(struct inode *inode, struct file *filp,
1004 unsigned int cmd, unsigned long arg)
1005 {
1006 drm_file_t *priv = filp->private_data;
1007 drm_device_t *dev = priv->head->dev;
1008 drm_device_dma_t *dma = dev->dma;
1009 drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1010 u32 *hw_status = dev_priv->hw_status_page;
1011 drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
1012 dev_priv->sarea_priv;
1013 drm_i810_vertex_t vertex;
1014
1015 if (copy_from_user
1016 (&vertex, (drm_i810_vertex_t __user *) arg, sizeof(vertex)))
1017 return -EFAULT;
1018
1019 LOCK_TEST_WITH_RETURN(dev, filp);
1020
1021 DRM_DEBUG("i810 dma vertex, idx %d used %d discard %d\n",
1022 vertex.idx, vertex.used, vertex.discard);
1023
1024 if (vertex.idx < 0 || vertex.idx > dma->buf_count)
1025 return -EINVAL;
1026
1027 i810_dma_dispatch_vertex(dev,
1028 dma->buflist[vertex.idx],
1029 vertex.discard, vertex.used);
1030
1031 atomic_add(vertex.used, &dev->counts[_DRM_STAT_SECONDARY]);
1032 atomic_inc(&dev->counts[_DRM_STAT_DMA]);
1033 sarea_priv->last_enqueue = dev_priv->counter - 1;
1034 sarea_priv->last_dispatch = (int)hw_status[5];
1035
1036 return 0;
1037 }
1038
1039 static int i810_clear_bufs(struct inode *inode, struct file *filp,
1040 unsigned int cmd, unsigned long arg)
1041 {
1042 drm_file_t *priv = filp->private_data;
1043 drm_device_t *dev = priv->head->dev;
1044 drm_i810_clear_t clear;
1045
1046 if (copy_from_user
1047 (&clear, (drm_i810_clear_t __user *) arg, sizeof(clear)))
1048 return -EFAULT;
1049
1050 LOCK_TEST_WITH_RETURN(dev, filp);
1051
1052 /* GH: Someone's doing nasty things... */
1053 if (!dev->dev_private) {
1054 return -EINVAL;
1055 }
1056
1057 i810_dma_dispatch_clear(dev, clear.flags,
1058 clear.clear_color, clear.clear_depth);
1059 return 0;
1060 }
1061
1062 static int i810_swap_bufs(struct inode *inode, struct file *filp,
1063 unsigned int cmd, unsigned long arg)
1064 {
1065 drm_file_t *priv = filp->private_data;
1066 drm_device_t *dev = priv->head->dev;
1067
1068 DRM_DEBUG("i810_swap_bufs\n");
1069
1070 LOCK_TEST_WITH_RETURN(dev, filp);
1071
1072 i810_dma_dispatch_swap(dev);
1073 return 0;
1074 }
1075
1076 static int i810_getage(struct inode *inode, struct file *filp, unsigned int cmd,
1077 unsigned long arg)
1078 {
1079 drm_file_t *priv = filp->private_data;
1080 drm_device_t *dev = priv->head->dev;
1081 drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1082 u32 *hw_status = dev_priv->hw_status_page;
1083 drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
1084 dev_priv->sarea_priv;
1085
1086 sarea_priv->last_dispatch = (int)hw_status[5];
1087 return 0;
1088 }
1089
1090 static int i810_getbuf(struct inode *inode, struct file *filp, unsigned int cmd,
1091 unsigned long arg)
1092 {
1093 drm_file_t *priv = filp->private_data;
1094 drm_device_t *dev = priv->head->dev;
1095 int retcode = 0;
1096 drm_i810_dma_t d;
1097 drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1098 u32 *hw_status = dev_priv->hw_status_page;
1099 drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
1100 dev_priv->sarea_priv;
1101
1102 if (copy_from_user(&d, (drm_i810_dma_t __user *) arg, sizeof(d)))
1103 return -EFAULT;
1104
1105 LOCK_TEST_WITH_RETURN(dev, filp);
1106
1107 d.granted = 0;
1108
1109 retcode = i810_dma_get_buffer(dev, &d, filp);
1110
1111 DRM_DEBUG("i810_dma: %d returning %d, granted = %d\n",
1112 current->pid, retcode, d.granted);
1113
1114 if (copy_to_user((drm_dma_t __user *) arg, &d, sizeof(d)))
1115 return -EFAULT;
1116 sarea_priv->last_dispatch = (int)hw_status[5];
1117
1118 return retcode;
1119 }
1120
1121 static int i810_copybuf(struct inode *inode,
1122 struct file *filp, unsigned int cmd, unsigned long arg)
1123 {
1124 /* Never copy - 2.4.x doesn't need it */
1125 return 0;
1126 }
1127
1128 static int i810_docopy(struct inode *inode, struct file *filp, unsigned int cmd,
1129 unsigned long arg)
1130 {
1131 /* Never copy - 2.4.x doesn't need it */
1132 return 0;
1133 }
1134
1135 static void i810_dma_dispatch_mc(drm_device_t * dev, drm_buf_t * buf, int used,
1136 unsigned int last_render)
1137 {
1138 drm_i810_private_t *dev_priv = dev->dev_private;
1139 drm_i810_buf_priv_t *buf_priv = buf->dev_private;
1140 drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
1141 unsigned long address = (unsigned long)buf->bus_address;
1142 unsigned long start = address - dev->agp->base;
1143 int u;
1144 RING_LOCALS;
1145
1146 i810_kernel_lost_context(dev);
1147
1148 u = cmpxchg(buf_priv->in_use, I810_BUF_CLIENT, I810_BUF_HARDWARE);
1149 if (u != I810_BUF_CLIENT) {
1150 DRM_DEBUG("MC found buffer that isn't mine!\n");
1151 }
1152
1153 if (used > 4 * 1024)
1154 used = 0;
1155
1156 sarea_priv->dirty = 0x7f;
1157
1158 DRM_DEBUG("dispatch mc addr 0x%lx, used 0x%x\n", address, used);
1159
1160 dev_priv->counter++;
1161 DRM_DEBUG("dispatch counter : %ld\n", dev_priv->counter);
1162 DRM_DEBUG("i810_dma_dispatch_mc\n");
1163 DRM_DEBUG("start : %lx\n", start);
1164 DRM_DEBUG("used : %d\n", used);
1165 DRM_DEBUG("start + used - 4 : %ld\n", start + used - 4);
1166
1167 if (buf_priv->currently_mapped == I810_BUF_MAPPED) {
1168 if (used & 4) {
1169 *(u32 *) ((char *) buf_priv->virtual + used) = 0;
1170 used += 4;
1171 }
1172
1173 i810_unmap_buffer(buf);
1174 }
1175 BEGIN_LP_RING(4);
1176 OUT_RING(CMD_OP_BATCH_BUFFER);
1177 OUT_RING(start | BB1_PROTECTED);
1178 OUT_RING(start + used - 4);
1179 OUT_RING(0);
1180 ADVANCE_LP_RING();
1181
1182 BEGIN_LP_RING(8);
1183 OUT_RING(CMD_STORE_DWORD_IDX);
1184 OUT_RING(buf_priv->my_use_idx);
1185 OUT_RING(I810_BUF_FREE);
1186 OUT_RING(0);
1187
1188 OUT_RING(CMD_STORE_DWORD_IDX);
1189 OUT_RING(16);
1190 OUT_RING(last_render);
1191 OUT_RING(0);
1192 ADVANCE_LP_RING();
1193 }
1194
1195 static int i810_dma_mc(struct inode *inode, struct file *filp,
1196 unsigned int cmd, unsigned long arg)
1197 {
1198 drm_file_t *priv = filp->private_data;
1199 drm_device_t *dev = priv->head->dev;
1200 drm_device_dma_t *dma = dev->dma;
1201 drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1202 u32 *hw_status = dev_priv->hw_status_page;
1203 drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
1204 dev_priv->sarea_priv;
1205 drm_i810_mc_t mc;
1206
1207 if (copy_from_user(&mc, (drm_i810_mc_t __user *) arg, sizeof(mc)))
1208 return -EFAULT;
1209
1210 LOCK_TEST_WITH_RETURN(dev, filp);
1211
1212 if (mc.idx >= dma->buf_count || mc.idx < 0)
1213 return -EINVAL;
1214
1215 i810_dma_dispatch_mc(dev, dma->buflist[mc.idx], mc.used,
1216 mc.last_render);
1217
1218 atomic_add(mc.used, &dev->counts[_DRM_STAT_SECONDARY]);
1219 atomic_inc(&dev->counts[_DRM_STAT_DMA]);
1220 sarea_priv->last_enqueue = dev_priv->counter - 1;
1221 sarea_priv->last_dispatch = (int)hw_status[5];
1222
1223 return 0;
1224 }
1225
1226 static int i810_rstatus(struct inode *inode, struct file *filp,
1227 unsigned int cmd, unsigned long arg)
1228 {
1229 drm_file_t *priv = filp->private_data;
1230 drm_device_t *dev = priv->head->dev;
1231 drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1232
1233 return (int)(((u32 *) (dev_priv->hw_status_page))[4]);
1234 }
1235
1236 static int i810_ov0_info(struct inode *inode, struct file *filp,
1237 unsigned int cmd, unsigned long arg)
1238 {
1239 drm_file_t *priv = filp->private_data;
1240 drm_device_t *dev = priv->head->dev;
1241 drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1242 drm_i810_overlay_t data;
1243
1244 data.offset = dev_priv->overlay_offset;
1245 data.physical = dev_priv->overlay_physical;
1246 if (copy_to_user
1247 ((drm_i810_overlay_t __user *) arg, &data, sizeof(data)))
1248 return -EFAULT;
1249 return 0;
1250 }
1251
1252 static int i810_fstatus(struct inode *inode, struct file *filp,
1253 unsigned int cmd, unsigned long arg)
1254 {
1255 drm_file_t *priv = filp->private_data;
1256 drm_device_t *dev = priv->head->dev;
1257 drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1258
1259 LOCK_TEST_WITH_RETURN(dev, filp);
1260
1261 return I810_READ(0x30008);
1262 }
1263
1264 static int i810_ov0_flip(struct inode *inode, struct file *filp,
1265 unsigned int cmd, unsigned long arg)
1266 {
1267 drm_file_t *priv = filp->private_data;
1268 drm_device_t *dev = priv->head->dev;
1269 drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1270
1271 LOCK_TEST_WITH_RETURN(dev, filp);
1272
1273 //Tell the overlay to update
1274 I810_WRITE(0x30000, dev_priv->overlay_physical | 0x80000000);
1275
1276 return 0;
1277 }
1278
1279 /* Not sure why this isn't set all the time:
1280 */
1281 static void i810_do_init_pageflip(drm_device_t * dev)
1282 {
1283 drm_i810_private_t *dev_priv = dev->dev_private;
1284
1285 DRM_DEBUG("%s\n", __FUNCTION__);
1286 dev_priv->page_flipping = 1;
1287 dev_priv->current_page = 0;
1288 dev_priv->sarea_priv->pf_current_page = dev_priv->current_page;
1289 }
1290
1291 static int i810_do_cleanup_pageflip(drm_device_t * dev)
1292 {
1293 drm_i810_private_t *dev_priv = dev->dev_private;
1294
1295 DRM_DEBUG("%s\n", __FUNCTION__);
1296 if (dev_priv->current_page != 0)
1297 i810_dma_dispatch_flip(dev);
1298
1299 dev_priv->page_flipping = 0;
1300 return 0;
1301 }
1302
1303 static int i810_flip_bufs(struct inode *inode, struct file *filp,
1304 unsigned int cmd, unsigned long arg)
1305 {
1306 drm_file_t *priv = filp->private_data;
1307 drm_device_t *dev = priv->head->dev;
1308 drm_i810_private_t *dev_priv = dev->dev_private;
1309
1310 DRM_DEBUG("%s\n", __FUNCTION__);
1311
1312 LOCK_TEST_WITH_RETURN(dev, filp);
1313
1314 if (!dev_priv->page_flipping)
1315 i810_do_init_pageflip(dev);
1316
1317 i810_dma_dispatch_flip(dev);
1318 return 0;
1319 }
1320
1321 int i810_driver_load(drm_device_t *dev, unsigned long flags)
1322 {
1323 /* i810 has 4 more counters */
1324 dev->counters += 4;
1325 dev->types[6] = _DRM_STAT_IRQ;
1326 dev->types[7] = _DRM_STAT_PRIMARY;
1327 dev->types[8] = _DRM_STAT_SECONDARY;
1328 dev->types[9] = _DRM_STAT_DMA;
1329
1330 return 0;
1331 }
1332
1333 void i810_driver_lastclose(drm_device_t * dev)
1334 {
1335 i810_dma_cleanup(dev);
1336 }
1337
1338 void i810_driver_preclose(drm_device_t * dev, DRMFILE filp)
1339 {
1340 if (dev->dev_private) {
1341 drm_i810_private_t *dev_priv = dev->dev_private;
1342 if (dev_priv->page_flipping) {
1343 i810_do_cleanup_pageflip(dev);
1344 }
1345 }
1346 }
1347
1348 void i810_driver_reclaim_buffers_locked(drm_device_t * dev, struct file *filp)
1349 {
1350 i810_reclaim_buffers(dev, filp);
1351 }
1352
1353 int i810_driver_dma_quiescent(drm_device_t * dev)
1354 {
1355 i810_dma_quiescent(dev);
1356 return 0;
1357 }
1358
1359 drm_ioctl_desc_t i810_ioctls[] = {
1360 [DRM_IOCTL_NR(DRM_I810_INIT)] = {i810_dma_init, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY},
1361 [DRM_IOCTL_NR(DRM_I810_VERTEX)] = {i810_dma_vertex, DRM_AUTH},
1362 [DRM_IOCTL_NR(DRM_I810_CLEAR)] = {i810_clear_bufs, DRM_AUTH},
1363 [DRM_IOCTL_NR(DRM_I810_FLUSH)] = {i810_flush_ioctl, DRM_AUTH},
1364 [DRM_IOCTL_NR(DRM_I810_GETAGE)] = {i810_getage, DRM_AUTH},
1365 [DRM_IOCTL_NR(DRM_I810_GETBUF)] = {i810_getbuf, DRM_AUTH},
1366 [DRM_IOCTL_NR(DRM_I810_SWAP)] = {i810_swap_bufs, DRM_AUTH},
1367 [DRM_IOCTL_NR(DRM_I810_COPY)] = {i810_copybuf, DRM_AUTH},
1368 [DRM_IOCTL_NR(DRM_I810_DOCOPY)] = {i810_docopy, DRM_AUTH},
1369 [DRM_IOCTL_NR(DRM_I810_OV0INFO)] = {i810_ov0_info, DRM_AUTH},
1370 [DRM_IOCTL_NR(DRM_I810_FSTATUS)] = {i810_fstatus, DRM_AUTH},
1371 [DRM_IOCTL_NR(DRM_I810_OV0FLIP)] = {i810_ov0_flip, DRM_AUTH},
1372 [DRM_IOCTL_NR(DRM_I810_MC)] = {i810_dma_mc, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY},
1373 [DRM_IOCTL_NR(DRM_I810_RSTATUS)] = {i810_rstatus, DRM_AUTH},
1374 [DRM_IOCTL_NR(DRM_I810_FLIP)] = {i810_flip_bufs, DRM_AUTH}
1375 };
1376
1377 int i810_max_ioctl = DRM_ARRAY_SIZE(i810_ioctls);
1378
1379 /**
1380 * Determine if the device really is AGP or not.
1381 *
1382 * All Intel graphics chipsets are treated as AGP, even if they are really
1383 * PCI-e.
1384 *
1385 * \param dev The device to be tested.
1386 *
1387 * \returns
1388 * A value of 1 is always retured to indictate every i810 is AGP.
1389 */
1390 int i810_driver_device_is_agp(drm_device_t * dev)
1391 {
1392 return 1;
1393 }
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