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