drm: move pci bus master enable into driver.
[linux-2.6.git] / drivers / gpu / drm / i810 / 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/slab.h>
40 #include <linux/pagemap.h>
41
42 #define I810_BUF_FREE           2
43 #define I810_BUF_CLIENT         1
44 #define I810_BUF_HARDWARE       0
45
46 #define I810_BUF_UNMAPPED 0
47 #define I810_BUF_MAPPED   1
48
49 static struct drm_buf *i810_freelist_get(struct drm_device * dev)
50 {
51         struct drm_device_dma *dma = dev->dma;
52         int i;
53         int used;
54
55         /* Linear search might not be the best solution */
56
57         for (i = 0; i < dma->buf_count; i++) {
58                 struct drm_buf *buf = dma->buflist[i];
59                 drm_i810_buf_priv_t *buf_priv = buf->dev_private;
60                 /* In use is already a pointer */
61                 used = cmpxchg(buf_priv->in_use, I810_BUF_FREE,
62                                I810_BUF_CLIENT);
63                 if (used == I810_BUF_FREE)
64                         return buf;
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(struct drm_device *dev, struct drm_buf *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         struct drm_file *priv = filp->private_data;
91         struct drm_device *dev;
92         drm_i810_private_t *dev_priv;
93         struct drm_buf *buf;
94         drm_i810_buf_priv_t *buf_priv;
95
96         dev = priv->minor->dev;
97         dev_priv = dev->dev_private;
98         buf = dev_priv->mmap_buffer;
99         buf_priv = buf->dev_private;
100
101         vma->vm_flags |= (VM_IO | VM_DONTCOPY);
102         vma->vm_file = filp;
103
104         buf_priv->currently_mapped = I810_BUF_MAPPED;
105
106         if (io_remap_pfn_range(vma, vma->vm_start,
107                                vma->vm_pgoff,
108                                vma->vm_end - vma->vm_start, vma->vm_page_prot))
109                 return -EAGAIN;
110         return 0;
111 }
112
113 static const struct file_operations i810_buffer_fops = {
114         .open = drm_open,
115         .release = drm_release,
116         .unlocked_ioctl = drm_ioctl,
117         .mmap = i810_mmap_buffers,
118         .fasync = drm_fasync,
119         .llseek = noop_llseek,
120 };
121
122 static int i810_map_buffer(struct drm_buf *buf, struct drm_file *file_priv)
123 {
124         struct drm_device *dev = file_priv->minor->dev;
125         drm_i810_buf_priv_t *buf_priv = buf->dev_private;
126         drm_i810_private_t *dev_priv = dev->dev_private;
127         const struct file_operations *old_fops;
128         int retcode = 0;
129
130         if (buf_priv->currently_mapped == I810_BUF_MAPPED)
131                 return -EINVAL;
132
133         down_write(&current->mm->mmap_sem);
134         old_fops = file_priv->filp->f_op;
135         file_priv->filp->f_op = &i810_buffer_fops;
136         dev_priv->mmap_buffer = buf;
137         buf_priv->virtual = (void *)do_mmap(file_priv->filp, 0, buf->total,
138                                             PROT_READ | PROT_WRITE,
139                                             MAP_SHARED, buf->bus_address);
140         dev_priv->mmap_buffer = NULL;
141         file_priv->filp->f_op = old_fops;
142         if (IS_ERR(buf_priv->virtual)) {
143                 /* Real error */
144                 DRM_ERROR("mmap error\n");
145                 retcode = PTR_ERR(buf_priv->virtual);
146                 buf_priv->virtual = NULL;
147         }
148         up_write(&current->mm->mmap_sem);
149
150         return retcode;
151 }
152
153 static int i810_unmap_buffer(struct drm_buf *buf)
154 {
155         drm_i810_buf_priv_t *buf_priv = buf->dev_private;
156         int retcode = 0;
157
158         if (buf_priv->currently_mapped != I810_BUF_MAPPED)
159                 return -EINVAL;
160
161         down_write(&current->mm->mmap_sem);
162         retcode = do_munmap(current->mm,
163                             (unsigned long)buf_priv->virtual,
164                             (size_t) buf->total);
165         up_write(&current->mm->mmap_sem);
166
167         buf_priv->currently_mapped = I810_BUF_UNMAPPED;
168         buf_priv->virtual = NULL;
169
170         return retcode;
171 }
172
173 static int i810_dma_get_buffer(struct drm_device *dev, drm_i810_dma_t *d,
174                                struct drm_file *file_priv)
175 {
176         struct drm_buf *buf;
177         drm_i810_buf_priv_t *buf_priv;
178         int retcode = 0;
179
180         buf = i810_freelist_get(dev);
181         if (!buf) {
182                 retcode = -ENOMEM;
183                 DRM_DEBUG("retcode=%d\n", retcode);
184                 return retcode;
185         }
186
187         retcode = i810_map_buffer(buf, file_priv);
188         if (retcode) {
189                 i810_freelist_put(dev, buf);
190                 DRM_ERROR("mapbuf failed, retcode %d\n", retcode);
191                 return retcode;
192         }
193         buf->file_priv = file_priv;
194         buf_priv = buf->dev_private;
195         d->granted = 1;
196         d->request_idx = buf->idx;
197         d->request_size = buf->total;
198         d->virtual = buf_priv->virtual;
199
200         return retcode;
201 }
202
203 static int i810_dma_cleanup(struct drm_device *dev)
204 {
205         struct drm_device_dma *dma = dev->dma;
206
207         /* Make sure interrupts are disabled here because the uninstall ioctl
208          * may not have been called from userspace and after dev_private
209          * is freed, it's too late.
210          */
211         if (drm_core_check_feature(dev, DRIVER_HAVE_IRQ) && dev->irq_enabled)
212                 drm_irq_uninstall(dev);
213
214         if (dev->dev_private) {
215                 int i;
216                 drm_i810_private_t *dev_priv =
217                     (drm_i810_private_t *) dev->dev_private;
218
219                 if (dev_priv->ring.virtual_start)
220                         drm_core_ioremapfree(&dev_priv->ring.map, dev);
221                 if (dev_priv->hw_status_page) {
222                         pci_free_consistent(dev->pdev, PAGE_SIZE,
223                                             dev_priv->hw_status_page,
224                                             dev_priv->dma_status_page);
225                 }
226                 kfree(dev->dev_private);
227                 dev->dev_private = NULL;
228
229                 for (i = 0; i < dma->buf_count; i++) {
230                         struct drm_buf *buf = dma->buflist[i];
231                         drm_i810_buf_priv_t *buf_priv = buf->dev_private;
232
233                         if (buf_priv->kernel_virtual && buf->total)
234                                 drm_core_ioremapfree(&buf_priv->map, dev);
235                 }
236         }
237         return 0;
238 }
239
240 static int i810_wait_ring(struct drm_device *dev, int n)
241 {
242         drm_i810_private_t *dev_priv = dev->dev_private;
243         drm_i810_ring_buffer_t *ring = &(dev_priv->ring);
244         int iters = 0;
245         unsigned long end;
246         unsigned int last_head = I810_READ(LP_RING + RING_HEAD) & HEAD_ADDR;
247
248         end = jiffies + (HZ * 3);
249         while (ring->space < n) {
250                 ring->head = I810_READ(LP_RING + RING_HEAD) & HEAD_ADDR;
251                 ring->space = ring->head - (ring->tail + 8);
252                 if (ring->space < 0)
253                         ring->space += ring->Size;
254
255                 if (ring->head != last_head) {
256                         end = jiffies + (HZ * 3);
257                         last_head = ring->head;
258                 }
259
260                 iters++;
261                 if (time_before(end, jiffies)) {
262                         DRM_ERROR("space: %d wanted %d\n", ring->space, n);
263                         DRM_ERROR("lockup\n");
264                         goto out_wait_ring;
265                 }
266                 udelay(1);
267         }
268
269 out_wait_ring:
270         return iters;
271 }
272
273 static void i810_kernel_lost_context(struct drm_device *dev)
274 {
275         drm_i810_private_t *dev_priv = dev->dev_private;
276         drm_i810_ring_buffer_t *ring = &(dev_priv->ring);
277
278         ring->head = I810_READ(LP_RING + RING_HEAD) & HEAD_ADDR;
279         ring->tail = I810_READ(LP_RING + RING_TAIL);
280         ring->space = ring->head - (ring->tail + 8);
281         if (ring->space < 0)
282                 ring->space += ring->Size;
283 }
284
285 static int i810_freelist_init(struct drm_device *dev, drm_i810_private_t *dev_priv)
286 {
287         struct drm_device_dma *dma = dev->dma;
288         int my_idx = 24;
289         u32 *hw_status = (u32 *) (dev_priv->hw_status_page + my_idx);
290         int i;
291
292         if (dma->buf_count > 1019) {
293                 /* Not enough space in the status page for the freelist */
294                 return -EINVAL;
295         }
296
297         for (i = 0; i < dma->buf_count; i++) {
298                 struct drm_buf *buf = dma->buflist[i];
299                 drm_i810_buf_priv_t *buf_priv = buf->dev_private;
300
301                 buf_priv->in_use = hw_status++;
302                 buf_priv->my_use_idx = my_idx;
303                 my_idx += 4;
304
305                 *buf_priv->in_use = I810_BUF_FREE;
306
307                 buf_priv->map.offset = buf->bus_address;
308                 buf_priv->map.size = buf->total;
309                 buf_priv->map.type = _DRM_AGP;
310                 buf_priv->map.flags = 0;
311                 buf_priv->map.mtrr = 0;
312
313                 drm_core_ioremap(&buf_priv->map, dev);
314                 buf_priv->kernel_virtual = buf_priv->map.handle;
315
316         }
317         return 0;
318 }
319
320 static int i810_dma_initialize(struct drm_device *dev,
321                                drm_i810_private_t *dev_priv,
322                                drm_i810_init_t *init)
323 {
324         struct drm_map_list *r_list;
325         memset(dev_priv, 0, sizeof(drm_i810_private_t));
326
327         list_for_each_entry(r_list, &dev->maplist, head) {
328                 if (r_list->map &&
329                     r_list->map->type == _DRM_SHM &&
330                     r_list->map->flags & _DRM_CONTAINS_LOCK) {
331                         dev_priv->sarea_map = r_list->map;
332                         break;
333                 }
334         }
335         if (!dev_priv->sarea_map) {
336                 dev->dev_private = (void *)dev_priv;
337                 i810_dma_cleanup(dev);
338                 DRM_ERROR("can not find sarea!\n");
339                 return -EINVAL;
340         }
341         dev_priv->mmio_map = drm_core_findmap(dev, init->mmio_offset);
342         if (!dev_priv->mmio_map) {
343                 dev->dev_private = (void *)dev_priv;
344                 i810_dma_cleanup(dev);
345                 DRM_ERROR("can not find mmio map!\n");
346                 return -EINVAL;
347         }
348         dev->agp_buffer_token = init->buffers_offset;
349         dev->agp_buffer_map = drm_core_findmap(dev, init->buffers_offset);
350         if (!dev->agp_buffer_map) {
351                 dev->dev_private = (void *)dev_priv;
352                 i810_dma_cleanup(dev);
353                 DRM_ERROR("can not find dma buffer map!\n");
354                 return -EINVAL;
355         }
356
357         dev_priv->sarea_priv = (drm_i810_sarea_t *)
358             ((u8 *) dev_priv->sarea_map->handle + init->sarea_priv_offset);
359
360         dev_priv->ring.Start = init->ring_start;
361         dev_priv->ring.End = init->ring_end;
362         dev_priv->ring.Size = init->ring_size;
363
364         dev_priv->ring.map.offset = dev->agp->base + init->ring_start;
365         dev_priv->ring.map.size = init->ring_size;
366         dev_priv->ring.map.type = _DRM_AGP;
367         dev_priv->ring.map.flags = 0;
368         dev_priv->ring.map.mtrr = 0;
369
370         drm_core_ioremap(&dev_priv->ring.map, dev);
371
372         if (dev_priv->ring.map.handle == NULL) {
373                 dev->dev_private = (void *)dev_priv;
374                 i810_dma_cleanup(dev);
375                 DRM_ERROR("can not ioremap virtual address for"
376                           " ring buffer\n");
377                 return -ENOMEM;
378         }
379
380         dev_priv->ring.virtual_start = dev_priv->ring.map.handle;
381
382         dev_priv->ring.tail_mask = dev_priv->ring.Size - 1;
383
384         dev_priv->w = init->w;
385         dev_priv->h = init->h;
386         dev_priv->pitch = init->pitch;
387         dev_priv->back_offset = init->back_offset;
388         dev_priv->depth_offset = init->depth_offset;
389         dev_priv->front_offset = init->front_offset;
390
391         dev_priv->overlay_offset = init->overlay_offset;
392         dev_priv->overlay_physical = init->overlay_physical;
393
394         dev_priv->front_di1 = init->front_offset | init->pitch_bits;
395         dev_priv->back_di1 = init->back_offset | init->pitch_bits;
396         dev_priv->zi1 = init->depth_offset | init->pitch_bits;
397
398         /* Program Hardware Status Page */
399         dev_priv->hw_status_page =
400             pci_alloc_consistent(dev->pdev, PAGE_SIZE,
401                                  &dev_priv->dma_status_page);
402         if (!dev_priv->hw_status_page) {
403                 dev->dev_private = (void *)dev_priv;
404                 i810_dma_cleanup(dev);
405                 DRM_ERROR("Can not allocate hardware status page\n");
406                 return -ENOMEM;
407         }
408         memset(dev_priv->hw_status_page, 0, PAGE_SIZE);
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         /* Now we need to init our freelist */
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
427 static 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 /* Most efficient way to verify state for the i810 is as it is
455  * emitted.  Non-conformant state is silently dropped.
456  *
457  * Use 'volatile' & local var tmp to force the emitted values to be
458  * identical to the verified ones.
459  */
460 static 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
493 static 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 /* Need to do some additional checking when setting the dest buffer.
525  */
526 static 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         /* invarient:
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
561 static 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 /* need to verify
591  */
592 static 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
667 static 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
713 static 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 > 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
793 static 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         /* On i815 at least ASYNC is buggy */
812         /* pitch<<5 is from 11.2.8 p158,
813            its the pitch / 8 then left shifted 8,
814            so (pitch >> 3) << 8 */
815         OUT_RING(CMD_OP_FRONTBUFFER_INFO | (pitch << 5) /*| ASYNC_FLIP */ );
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         /* Increment the frame counter.  The client-side 3D driver must
832          * throttle the framerate by waiting for this value before
833          * performing the swapbuffer ioctl.
834          */
835         dev_priv->sarea_priv->pf_current_page = dev_priv->current_page;
836
837 }
838
839 static 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
856 static int 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, ret = 0;
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 ret;
886 }
887
888 /* Must be called with the lock held */
889 static void i810_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
920 static 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
929 static 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         atomic_add(vertex->used, &dev->counts[_DRM_STAT_SECONDARY]);
952         atomic_inc(&dev->counts[_DRM_STAT_DMA]);
953         sarea_priv->last_enqueue = dev_priv->counter - 1;
954         sarea_priv->last_dispatch = (int)hw_status[5];
955
956         return 0;
957 }
958
959 static int i810_clear_bufs(struct drm_device *dev, void *data,
960                            struct drm_file *file_priv)
961 {
962         drm_i810_clear_t *clear = data;
963
964         LOCK_TEST_WITH_RETURN(dev, file_priv);
965
966         /* GH: Someone's doing nasty things... */
967         if (!dev->dev_private)
968                 return -EINVAL;
969
970         i810_dma_dispatch_clear(dev, clear->flags,
971                                 clear->clear_color, clear->clear_depth);
972         return 0;
973 }
974
975 static int i810_swap_bufs(struct drm_device *dev, void *data,
976                           struct drm_file *file_priv)
977 {
978         DRM_DEBUG("\n");
979
980         LOCK_TEST_WITH_RETURN(dev, file_priv);
981
982         i810_dma_dispatch_swap(dev);
983         return 0;
984 }
985
986 static int i810_getage(struct drm_device *dev, void *data,
987                        struct drm_file *file_priv)
988 {
989         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
990         u32 *hw_status = dev_priv->hw_status_page;
991         drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
992             dev_priv->sarea_priv;
993
994         sarea_priv->last_dispatch = (int)hw_status[5];
995         return 0;
996 }
997
998 static int i810_getbuf(struct drm_device *dev, void *data,
999                        struct drm_file *file_priv)
1000 {
1001         int retcode = 0;
1002         drm_i810_dma_t *d = data;
1003         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1004         u32 *hw_status = dev_priv->hw_status_page;
1005         drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
1006             dev_priv->sarea_priv;
1007
1008         LOCK_TEST_WITH_RETURN(dev, file_priv);
1009
1010         d->granted = 0;
1011
1012         retcode = i810_dma_get_buffer(dev, d, file_priv);
1013
1014         DRM_DEBUG("i810_dma: %d returning %d, granted = %d\n",
1015                   task_pid_nr(current), retcode, d->granted);
1016
1017         sarea_priv->last_dispatch = (int)hw_status[5];
1018
1019         return retcode;
1020 }
1021
1022 static int i810_copybuf(struct drm_device *dev, void *data,
1023                         struct drm_file *file_priv)
1024 {
1025         /* Never copy - 2.4.x doesn't need it */
1026         return 0;
1027 }
1028
1029 static int i810_docopy(struct drm_device *dev, void *data,
1030                         struct drm_file *file_priv)
1031 {
1032         /* Never copy - 2.4.x doesn't need it */
1033         return 0;
1034 }
1035
1036 static void i810_dma_dispatch_mc(struct drm_device *dev, struct drm_buf *buf, int used,
1037                                  unsigned int last_render)
1038 {
1039         drm_i810_private_t *dev_priv = dev->dev_private;
1040         drm_i810_buf_priv_t *buf_priv = buf->dev_private;
1041         drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
1042         unsigned long address = (unsigned long)buf->bus_address;
1043         unsigned long start = address - dev->agp->base;
1044         int u;
1045         RING_LOCALS;
1046
1047         i810_kernel_lost_context(dev);
1048
1049         u = cmpxchg(buf_priv->in_use, I810_BUF_CLIENT, I810_BUF_HARDWARE);
1050         if (u != I810_BUF_CLIENT)
1051                 DRM_DEBUG("MC found buffer that isn't mine!\n");
1052
1053         if (used > 4 * 1024)
1054                 used = 0;
1055
1056         sarea_priv->dirty = 0x7f;
1057
1058         DRM_DEBUG("addr 0x%lx, used 0x%x\n", address, used);
1059
1060         dev_priv->counter++;
1061         DRM_DEBUG("dispatch counter : %ld\n", dev_priv->counter);
1062         DRM_DEBUG("start : %lx\n", start);
1063         DRM_DEBUG("used : %d\n", used);
1064         DRM_DEBUG("start + used - 4 : %ld\n", start + used - 4);
1065
1066         if (buf_priv->currently_mapped == I810_BUF_MAPPED) {
1067                 if (used & 4) {
1068                         *(u32 *) ((char *) buf_priv->virtual + used) = 0;
1069                         used += 4;
1070                 }
1071
1072                 i810_unmap_buffer(buf);
1073         }
1074         BEGIN_LP_RING(4);
1075         OUT_RING(CMD_OP_BATCH_BUFFER);
1076         OUT_RING(start | BB1_PROTECTED);
1077         OUT_RING(start + used - 4);
1078         OUT_RING(0);
1079         ADVANCE_LP_RING();
1080
1081         BEGIN_LP_RING(8);
1082         OUT_RING(CMD_STORE_DWORD_IDX);
1083         OUT_RING(buf_priv->my_use_idx);
1084         OUT_RING(I810_BUF_FREE);
1085         OUT_RING(0);
1086
1087         OUT_RING(CMD_STORE_DWORD_IDX);
1088         OUT_RING(16);
1089         OUT_RING(last_render);
1090         OUT_RING(0);
1091         ADVANCE_LP_RING();
1092 }
1093
1094 static int i810_dma_mc(struct drm_device *dev, void *data,
1095                        struct drm_file *file_priv)
1096 {
1097         struct drm_device_dma *dma = dev->dma;
1098         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1099         u32 *hw_status = dev_priv->hw_status_page;
1100         drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
1101             dev_priv->sarea_priv;
1102         drm_i810_mc_t *mc = data;
1103
1104         LOCK_TEST_WITH_RETURN(dev, file_priv);
1105
1106         if (mc->idx >= dma->buf_count || mc->idx < 0)
1107                 return -EINVAL;
1108
1109         i810_dma_dispatch_mc(dev, dma->buflist[mc->idx], mc->used,
1110                              mc->last_render);
1111
1112         atomic_add(mc->used, &dev->counts[_DRM_STAT_SECONDARY]);
1113         atomic_inc(&dev->counts[_DRM_STAT_DMA]);
1114         sarea_priv->last_enqueue = dev_priv->counter - 1;
1115         sarea_priv->last_dispatch = (int)hw_status[5];
1116
1117         return 0;
1118 }
1119
1120 static int i810_rstatus(struct drm_device *dev, void *data,
1121                         struct drm_file *file_priv)
1122 {
1123         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1124
1125         return (int)(((u32 *) (dev_priv->hw_status_page))[4]);
1126 }
1127
1128 static int i810_ov0_info(struct drm_device *dev, void *data,
1129                          struct drm_file *file_priv)
1130 {
1131         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1132         drm_i810_overlay_t *ov = data;
1133
1134         ov->offset = dev_priv->overlay_offset;
1135         ov->physical = dev_priv->overlay_physical;
1136
1137         return 0;
1138 }
1139
1140 static int i810_fstatus(struct drm_device *dev, void *data,
1141                         struct drm_file *file_priv)
1142 {
1143         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1144
1145         LOCK_TEST_WITH_RETURN(dev, file_priv);
1146         return I810_READ(0x30008);
1147 }
1148
1149 static int i810_ov0_flip(struct drm_device *dev, void *data,
1150                          struct drm_file *file_priv)
1151 {
1152         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1153
1154         LOCK_TEST_WITH_RETURN(dev, file_priv);
1155
1156         /* Tell the overlay to update */
1157         I810_WRITE(0x30000, dev_priv->overlay_physical | 0x80000000);
1158
1159         return 0;
1160 }
1161
1162 /* Not sure why this isn't set all the time:
1163  */
1164 static void i810_do_init_pageflip(struct drm_device *dev)
1165 {
1166         drm_i810_private_t *dev_priv = dev->dev_private;
1167
1168         DRM_DEBUG("\n");
1169         dev_priv->page_flipping = 1;
1170         dev_priv->current_page = 0;
1171         dev_priv->sarea_priv->pf_current_page = dev_priv->current_page;
1172 }
1173
1174 static int i810_do_cleanup_pageflip(struct drm_device *dev)
1175 {
1176         drm_i810_private_t *dev_priv = dev->dev_private;
1177
1178         DRM_DEBUG("\n");
1179         if (dev_priv->current_page != 0)
1180                 i810_dma_dispatch_flip(dev);
1181
1182         dev_priv->page_flipping = 0;
1183         return 0;
1184 }
1185
1186 static int i810_flip_bufs(struct drm_device *dev, void *data,
1187                           struct drm_file *file_priv)
1188 {
1189         drm_i810_private_t *dev_priv = dev->dev_private;
1190
1191         DRM_DEBUG("\n");
1192
1193         LOCK_TEST_WITH_RETURN(dev, file_priv);
1194
1195         if (!dev_priv->page_flipping)
1196                 i810_do_init_pageflip(dev);
1197
1198         i810_dma_dispatch_flip(dev);
1199         return 0;
1200 }
1201
1202 int i810_driver_load(struct drm_device *dev, unsigned long flags)
1203 {
1204         /* i810 has 4 more counters */
1205         dev->counters += 4;
1206         dev->types[6] = _DRM_STAT_IRQ;
1207         dev->types[7] = _DRM_STAT_PRIMARY;
1208         dev->types[8] = _DRM_STAT_SECONDARY;
1209         dev->types[9] = _DRM_STAT_DMA;
1210
1211         pci_set_master(dev->pdev);
1212
1213         return 0;
1214 }
1215
1216 void i810_driver_lastclose(struct drm_device *dev)
1217 {
1218         i810_dma_cleanup(dev);
1219 }
1220
1221 void i810_driver_preclose(struct drm_device *dev, struct drm_file *file_priv)
1222 {
1223         if (dev->dev_private) {
1224                 drm_i810_private_t *dev_priv = dev->dev_private;
1225                 if (dev_priv->page_flipping)
1226                         i810_do_cleanup_pageflip(dev);
1227         }
1228 }
1229
1230 void i810_driver_reclaim_buffers_locked(struct drm_device *dev,
1231                                         struct drm_file *file_priv)
1232 {
1233         i810_reclaim_buffers(dev, file_priv);
1234 }
1235
1236 int i810_driver_dma_quiescent(struct drm_device *dev)
1237 {
1238         i810_dma_quiescent(dev);
1239         return 0;
1240 }
1241
1242 struct drm_ioctl_desc i810_ioctls[] = {
1243         DRM_IOCTL_DEF_DRV(I810_INIT, i810_dma_init, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY|DRM_UNLOCKED),
1244         DRM_IOCTL_DEF_DRV(I810_VERTEX, i810_dma_vertex, DRM_AUTH|DRM_UNLOCKED),
1245         DRM_IOCTL_DEF_DRV(I810_CLEAR, i810_clear_bufs, DRM_AUTH|DRM_UNLOCKED),
1246         DRM_IOCTL_DEF_DRV(I810_FLUSH, i810_flush_ioctl, DRM_AUTH|DRM_UNLOCKED),
1247         DRM_IOCTL_DEF_DRV(I810_GETAGE, i810_getage, DRM_AUTH|DRM_UNLOCKED),
1248         DRM_IOCTL_DEF_DRV(I810_GETBUF, i810_getbuf, DRM_AUTH|DRM_UNLOCKED),
1249         DRM_IOCTL_DEF_DRV(I810_SWAP, i810_swap_bufs, DRM_AUTH|DRM_UNLOCKED),
1250         DRM_IOCTL_DEF_DRV(I810_COPY, i810_copybuf, DRM_AUTH|DRM_UNLOCKED),
1251         DRM_IOCTL_DEF_DRV(I810_DOCOPY, i810_docopy, DRM_AUTH|DRM_UNLOCKED),
1252         DRM_IOCTL_DEF_DRV(I810_OV0INFO, i810_ov0_info, DRM_AUTH|DRM_UNLOCKED),
1253         DRM_IOCTL_DEF_DRV(I810_FSTATUS, i810_fstatus, DRM_AUTH|DRM_UNLOCKED),
1254         DRM_IOCTL_DEF_DRV(I810_OV0FLIP, i810_ov0_flip, DRM_AUTH|DRM_UNLOCKED),
1255         DRM_IOCTL_DEF_DRV(I810_MC, i810_dma_mc, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY|DRM_UNLOCKED),
1256         DRM_IOCTL_DEF_DRV(I810_RSTATUS, i810_rstatus, DRM_AUTH|DRM_UNLOCKED),
1257         DRM_IOCTL_DEF_DRV(I810_FLIP, i810_flip_bufs, DRM_AUTH|DRM_UNLOCKED),
1258 };
1259
1260 int i810_max_ioctl = DRM_ARRAY_SIZE(i810_ioctls);
1261
1262 /**
1263  * Determine if the device really is AGP or not.
1264  *
1265  * All Intel graphics chipsets are treated as AGP, even if they are really
1266  * PCI-e.
1267  *
1268  * \param dev   The device to be tested.
1269  *
1270  * \returns
1271  * A value of 1 is always retured to indictate every i810 is AGP.
1272  */
1273 int i810_driver_device_is_agp(struct drm_device *dev)
1274 {
1275         return 1;
1276 }