include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit...
[linux-3.10.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         }
67         return NULL;
68 }
69
70 /* This should only be called if the buffer is not sent to the hardware
71  * yet, the hardware updates in use for us once its on the ring buffer.
72  */
73
74 static int i810_freelist_put(struct drm_device * dev, struct drm_buf * buf)
75 {
76         drm_i810_buf_priv_t *buf_priv = buf->dev_private;
77         int used;
78
79         /* In use is already a pointer */
80         used = cmpxchg(buf_priv->in_use, I810_BUF_CLIENT, I810_BUF_FREE);
81         if (used != I810_BUF_CLIENT) {
82                 DRM_ERROR("Freeing buffer thats not in use : %d\n", buf->idx);
83                 return -EINVAL;
84         }
85
86         return 0;
87 }
88
89 static int i810_mmap_buffers(struct file *filp, struct vm_area_struct *vma)
90 {
91         struct drm_file *priv = filp->private_data;
92         struct drm_device *dev;
93         drm_i810_private_t *dev_priv;
94         struct drm_buf *buf;
95         drm_i810_buf_priv_t *buf_priv;
96
97         lock_kernel();
98         dev = priv->minor->dev;
99         dev_priv = dev->dev_private;
100         buf = dev_priv->mmap_buffer;
101         buf_priv = buf->dev_private;
102
103         vma->vm_flags |= (VM_IO | VM_DONTCOPY);
104         vma->vm_file = filp;
105
106         buf_priv->currently_mapped = I810_BUF_MAPPED;
107         unlock_kernel();
108
109         if (io_remap_pfn_range(vma, vma->vm_start,
110                                vma->vm_pgoff,
111                                vma->vm_end - vma->vm_start, vma->vm_page_prot))
112                 return -EAGAIN;
113         return 0;
114 }
115
116 static const struct file_operations i810_buffer_fops = {
117         .open = drm_open,
118         .release = drm_release,
119         .unlocked_ioctl = drm_ioctl,
120         .mmap = i810_mmap_buffers,
121         .fasync = drm_fasync,
122 };
123
124 static int i810_map_buffer(struct drm_buf * buf, struct drm_file *file_priv)
125 {
126         struct drm_device *dev = file_priv->minor->dev;
127         drm_i810_buf_priv_t *buf_priv = buf->dev_private;
128         drm_i810_private_t *dev_priv = dev->dev_private;
129         const struct file_operations *old_fops;
130         int retcode = 0;
131
132         if (buf_priv->currently_mapped == I810_BUF_MAPPED)
133                 return -EINVAL;
134
135         down_write(&current->mm->mmap_sem);
136         old_fops = file_priv->filp->f_op;
137         file_priv->filp->f_op = &i810_buffer_fops;
138         dev_priv->mmap_buffer = buf;
139         buf_priv->virtual = (void *)do_mmap(file_priv->filp, 0, buf->total,
140                                             PROT_READ | PROT_WRITE,
141                                             MAP_SHARED, buf->bus_address);
142         dev_priv->mmap_buffer = NULL;
143         file_priv->filp->f_op = old_fops;
144         if (IS_ERR(buf_priv->virtual)) {
145                 /* Real error */
146                 DRM_ERROR("mmap error\n");
147                 retcode = PTR_ERR(buf_priv->virtual);
148                 buf_priv->virtual = NULL;
149         }
150         up_write(&current->mm->mmap_sem);
151
152         return retcode;
153 }
154
155 static int i810_unmap_buffer(struct drm_buf * buf)
156 {
157         drm_i810_buf_priv_t *buf_priv = buf->dev_private;
158         int retcode = 0;
159
160         if (buf_priv->currently_mapped != I810_BUF_MAPPED)
161                 return -EINVAL;
162
163         down_write(&current->mm->mmap_sem);
164         retcode = do_munmap(current->mm,
165                             (unsigned long)buf_priv->virtual,
166                             (size_t) buf->total);
167         up_write(&current->mm->mmap_sem);
168
169         buf_priv->currently_mapped = I810_BUF_UNMAPPED;
170         buf_priv->virtual = NULL;
171
172         return retcode;
173 }
174
175 static int i810_dma_get_buffer(struct drm_device * dev, drm_i810_dma_t * d,
176                                struct drm_file *file_priv)
177 {
178         struct drm_buf *buf;
179         drm_i810_buf_priv_t *buf_priv;
180         int retcode = 0;
181
182         buf = i810_freelist_get(dev);
183         if (!buf) {
184                 retcode = -ENOMEM;
185                 DRM_DEBUG("retcode=%d\n", retcode);
186                 return retcode;
187         }
188
189         retcode = i810_map_buffer(buf, file_priv);
190         if (retcode) {
191                 i810_freelist_put(dev, buf);
192                 DRM_ERROR("mapbuf failed, retcode %d\n", retcode);
193                 return retcode;
194         }
195         buf->file_priv = file_priv;
196         buf_priv = buf->dev_private;
197         d->granted = 1;
198         d->request_idx = buf->idx;
199         d->request_size = buf->total;
200         d->virtual = buf_priv->virtual;
201
202         return retcode;
203 }
204
205 static int i810_dma_cleanup(struct drm_device * dev)
206 {
207         struct drm_device_dma *dma = dev->dma;
208
209         /* Make sure interrupts are disabled here because the uninstall ioctl
210          * may not have been called from userspace and after dev_private
211          * is freed, it's too late.
212          */
213         if (drm_core_check_feature(dev, DRIVER_HAVE_IRQ) && dev->irq_enabled)
214                 drm_irq_uninstall(dev);
215
216         if (dev->dev_private) {
217                 int i;
218                 drm_i810_private_t *dev_priv =
219                     (drm_i810_private_t *) dev->dev_private;
220
221                 if (dev_priv->ring.virtual_start) {
222                         drm_core_ioremapfree(&dev_priv->ring.map, dev);
223                 }
224                 if (dev_priv->hw_status_page) {
225                         pci_free_consistent(dev->pdev, PAGE_SIZE,
226                                             dev_priv->hw_status_page,
227                                             dev_priv->dma_status_page);
228                         /* Need to rewrite hardware status page */
229                         I810_WRITE(0x02080, 0x1ffff000);
230                 }
231                 kfree(dev->dev_private);
232                 dev->dev_private = NULL;
233
234                 for (i = 0; i < dma->buf_count; i++) {
235                         struct drm_buf *buf = dma->buflist[i];
236                         drm_i810_buf_priv_t *buf_priv = buf->dev_private;
237
238                         if (buf_priv->kernel_virtual && buf->total)
239                                 drm_core_ioremapfree(&buf_priv->map, dev);
240                 }
241         }
242         return 0;
243 }
244
245 static int i810_wait_ring(struct drm_device * dev, int n)
246 {
247         drm_i810_private_t *dev_priv = dev->dev_private;
248         drm_i810_ring_buffer_t *ring = &(dev_priv->ring);
249         int iters = 0;
250         unsigned long end;
251         unsigned int last_head = I810_READ(LP_RING + RING_HEAD) & HEAD_ADDR;
252
253         end = jiffies + (HZ * 3);
254         while (ring->space < n) {
255                 ring->head = I810_READ(LP_RING + RING_HEAD) & HEAD_ADDR;
256                 ring->space = ring->head - (ring->tail + 8);
257                 if (ring->space < 0)
258                         ring->space += ring->Size;
259
260                 if (ring->head != last_head) {
261                         end = jiffies + (HZ * 3);
262                         last_head = ring->head;
263                 }
264
265                 iters++;
266                 if (time_before(end, jiffies)) {
267                         DRM_ERROR("space: %d wanted %d\n", ring->space, n);
268                         DRM_ERROR("lockup\n");
269                         goto out_wait_ring;
270                 }
271                 udelay(1);
272         }
273
274       out_wait_ring:
275         return iters;
276 }
277
278 static void i810_kernel_lost_context(struct drm_device * dev)
279 {
280         drm_i810_private_t *dev_priv = dev->dev_private;
281         drm_i810_ring_buffer_t *ring = &(dev_priv->ring);
282
283         ring->head = I810_READ(LP_RING + RING_HEAD) & HEAD_ADDR;
284         ring->tail = I810_READ(LP_RING + RING_TAIL);
285         ring->space = ring->head - (ring->tail + 8);
286         if (ring->space < 0)
287                 ring->space += ring->Size;
288 }
289
290 static int i810_freelist_init(struct drm_device * dev, drm_i810_private_t * dev_priv)
291 {
292         struct drm_device_dma *dma = dev->dma;
293         int my_idx = 24;
294         u32 *hw_status = (u32 *) (dev_priv->hw_status_page + my_idx);
295         int i;
296
297         if (dma->buf_count > 1019) {
298                 /* Not enough space in the status page for the freelist */
299                 return -EINVAL;
300         }
301
302         for (i = 0; i < dma->buf_count; i++) {
303                 struct drm_buf *buf = dma->buflist[i];
304                 drm_i810_buf_priv_t *buf_priv = buf->dev_private;
305
306                 buf_priv->in_use = hw_status++;
307                 buf_priv->my_use_idx = my_idx;
308                 my_idx += 4;
309
310                 *buf_priv->in_use = I810_BUF_FREE;
311
312                 buf_priv->map.offset = buf->bus_address;
313                 buf_priv->map.size = buf->total;
314                 buf_priv->map.type = _DRM_AGP;
315                 buf_priv->map.flags = 0;
316                 buf_priv->map.mtrr = 0;
317
318                 drm_core_ioremap(&buf_priv->map, dev);
319                 buf_priv->kernel_virtual = buf_priv->map.handle;
320
321         }
322         return 0;
323 }
324
325 static int i810_dma_initialize(struct drm_device * dev,
326                                drm_i810_private_t * dev_priv,
327                                drm_i810_init_t * init)
328 {
329         struct drm_map_list *r_list;
330         memset(dev_priv, 0, sizeof(drm_i810_private_t));
331
332         list_for_each_entry(r_list, &dev->maplist, head) {
333                 if (r_list->map &&
334                     r_list->map->type == _DRM_SHM &&
335                     r_list->map->flags & _DRM_CONTAINS_LOCK) {
336                         dev_priv->sarea_map = r_list->map;
337                         break;
338                 }
339         }
340         if (!dev_priv->sarea_map) {
341                 dev->dev_private = (void *)dev_priv;
342                 i810_dma_cleanup(dev);
343                 DRM_ERROR("can not find sarea!\n");
344                 return -EINVAL;
345         }
346         dev_priv->mmio_map = drm_core_findmap(dev, init->mmio_offset);
347         if (!dev_priv->mmio_map) {
348                 dev->dev_private = (void *)dev_priv;
349                 i810_dma_cleanup(dev);
350                 DRM_ERROR("can not find mmio map!\n");
351                 return -EINVAL;
352         }
353         dev->agp_buffer_token = init->buffers_offset;
354         dev->agp_buffer_map = drm_core_findmap(dev, init->buffers_offset);
355         if (!dev->agp_buffer_map) {
356                 dev->dev_private = (void *)dev_priv;
357                 i810_dma_cleanup(dev);
358                 DRM_ERROR("can not find dma buffer map!\n");
359                 return -EINVAL;
360         }
361
362         dev_priv->sarea_priv = (drm_i810_sarea_t *)
363             ((u8 *) dev_priv->sarea_map->handle + init->sarea_priv_offset);
364
365         dev_priv->ring.Start = init->ring_start;
366         dev_priv->ring.End = init->ring_end;
367         dev_priv->ring.Size = init->ring_size;
368
369         dev_priv->ring.map.offset = dev->agp->base + init->ring_start;
370         dev_priv->ring.map.size = init->ring_size;
371         dev_priv->ring.map.type = _DRM_AGP;
372         dev_priv->ring.map.flags = 0;
373         dev_priv->ring.map.mtrr = 0;
374
375         drm_core_ioremap(&dev_priv->ring.map, dev);
376
377         if (dev_priv->ring.map.handle == NULL) {
378                 dev->dev_private = (void *)dev_priv;
379                 i810_dma_cleanup(dev);
380                 DRM_ERROR("can not ioremap virtual address for"
381                           " ring buffer\n");
382                 return -ENOMEM;
383         }
384
385         dev_priv->ring.virtual_start = dev_priv->ring.map.handle;
386
387         dev_priv->ring.tail_mask = dev_priv->ring.Size - 1;
388
389         dev_priv->w = init->w;
390         dev_priv->h = init->h;
391         dev_priv->pitch = init->pitch;
392         dev_priv->back_offset = init->back_offset;
393         dev_priv->depth_offset = init->depth_offset;
394         dev_priv->front_offset = init->front_offset;
395
396         dev_priv->overlay_offset = init->overlay_offset;
397         dev_priv->overlay_physical = init->overlay_physical;
398
399         dev_priv->front_di1 = init->front_offset | init->pitch_bits;
400         dev_priv->back_di1 = init->back_offset | init->pitch_bits;
401         dev_priv->zi1 = init->depth_offset | init->pitch_bits;
402
403         /* Program Hardware Status Page */
404         dev_priv->hw_status_page =
405             pci_alloc_consistent(dev->pdev, PAGE_SIZE,
406                                  &dev_priv->dma_status_page);
407         if (!dev_priv->hw_status_page) {
408                 dev->dev_private = (void *)dev_priv;
409                 i810_dma_cleanup(dev);
410                 DRM_ERROR("Can not allocate hardware status page\n");
411                 return -ENOMEM;
412         }
413         memset(dev_priv->hw_status_page, 0, PAGE_SIZE);
414         DRM_DEBUG("hw status page @ %p\n", dev_priv->hw_status_page);
415
416         I810_WRITE(0x02080, dev_priv->dma_status_page);
417         DRM_DEBUG("Enabled hardware status page\n");
418
419         /* Now we need to init our freelist */
420         if (i810_freelist_init(dev, dev_priv) != 0) {
421                 dev->dev_private = (void *)dev_priv;
422                 i810_dma_cleanup(dev);
423                 DRM_ERROR("Not enough space in the status page for"
424                           " the freelist\n");
425                 return -ENOMEM;
426         }
427         dev->dev_private = (void *)dev_priv;
428
429         return 0;
430 }
431
432 static int i810_dma_init(struct drm_device *dev, void *data,
433                          struct drm_file *file_priv)
434 {
435         drm_i810_private_t *dev_priv;
436         drm_i810_init_t *init = data;
437         int retcode = 0;
438
439         switch (init->func) {
440         case I810_INIT_DMA_1_4:
441                 DRM_INFO("Using v1.4 init.\n");
442                 dev_priv = kmalloc(sizeof(drm_i810_private_t), GFP_KERNEL);
443                 if (dev_priv == NULL)
444                         return -ENOMEM;
445                 retcode = i810_dma_initialize(dev, dev_priv, init);
446                 break;
447
448         case I810_CLEANUP_DMA:
449                 DRM_INFO("DMA Cleanup\n");
450                 retcode = i810_dma_cleanup(dev);
451                 break;
452         default:
453                 return -EINVAL;
454         }
455
456         return retcode;
457 }
458
459 /* Most efficient way to verify state for the i810 is as it is
460  * emitted.  Non-conformant state is silently dropped.
461  *
462  * Use 'volatile' & local var tmp to force the emitted values to be
463  * identical to the verified ones.
464  */
465 static void i810EmitContextVerified(struct drm_device * dev,
466                                     volatile unsigned int *code)
467 {
468         drm_i810_private_t *dev_priv = dev->dev_private;
469         int i, j = 0;
470         unsigned int tmp;
471         RING_LOCALS;
472
473         BEGIN_LP_RING(I810_CTX_SETUP_SIZE);
474
475         OUT_RING(GFX_OP_COLOR_FACTOR);
476         OUT_RING(code[I810_CTXREG_CF1]);
477
478         OUT_RING(GFX_OP_STIPPLE);
479         OUT_RING(code[I810_CTXREG_ST1]);
480
481         for (i = 4; i < I810_CTX_SETUP_SIZE; i++) {
482                 tmp = code[i];
483
484                 if ((tmp & (7 << 29)) == (3 << 29) &&
485                     (tmp & (0x1f << 24)) < (0x1d << 24)) {
486                         OUT_RING(tmp);
487                         j++;
488                 } else
489                         printk("constext state dropped!!!\n");
490         }
491
492         if (j & 1)
493                 OUT_RING(0);
494
495         ADVANCE_LP_RING();
496 }
497
498 static void i810EmitTexVerified(struct drm_device * dev, volatile unsigned int *code)
499 {
500         drm_i810_private_t *dev_priv = dev->dev_private;
501         int i, j = 0;
502         unsigned int tmp;
503         RING_LOCALS;
504
505         BEGIN_LP_RING(I810_TEX_SETUP_SIZE);
506
507         OUT_RING(GFX_OP_MAP_INFO);
508         OUT_RING(code[I810_TEXREG_MI1]);
509         OUT_RING(code[I810_TEXREG_MI2]);
510         OUT_RING(code[I810_TEXREG_MI3]);
511
512         for (i = 4; i < I810_TEX_SETUP_SIZE; i++) {
513                 tmp = code[i];
514
515                 if ((tmp & (7 << 29)) == (3 << 29) &&
516                     (tmp & (0x1f << 24)) < (0x1d << 24)) {
517                         OUT_RING(tmp);
518                         j++;
519                 } else
520                         printk("texture state dropped!!!\n");
521         }
522
523         if (j & 1)
524                 OUT_RING(0);
525
526         ADVANCE_LP_RING();
527 }
528
529 /* Need to do some additional checking when setting the dest buffer.
530  */
531 static void i810EmitDestVerified(struct drm_device * dev,
532                                  volatile unsigned int *code)
533 {
534         drm_i810_private_t *dev_priv = dev->dev_private;
535         unsigned int tmp;
536         RING_LOCALS;
537
538         BEGIN_LP_RING(I810_DEST_SETUP_SIZE + 2);
539
540         tmp = code[I810_DESTREG_DI1];
541         if (tmp == dev_priv->front_di1 || tmp == dev_priv->back_di1) {
542                 OUT_RING(CMD_OP_DESTBUFFER_INFO);
543                 OUT_RING(tmp);
544         } else
545                 DRM_DEBUG("bad di1 %x (allow %x or %x)\n",
546                           tmp, dev_priv->front_di1, dev_priv->back_di1);
547
548         /* invarient:
549          */
550         OUT_RING(CMD_OP_Z_BUFFER_INFO);
551         OUT_RING(dev_priv->zi1);
552
553         OUT_RING(GFX_OP_DESTBUFFER_VARS);
554         OUT_RING(code[I810_DESTREG_DV1]);
555
556         OUT_RING(GFX_OP_DRAWRECT_INFO);
557         OUT_RING(code[I810_DESTREG_DR1]);
558         OUT_RING(code[I810_DESTREG_DR2]);
559         OUT_RING(code[I810_DESTREG_DR3]);
560         OUT_RING(code[I810_DESTREG_DR4]);
561         OUT_RING(0);
562
563         ADVANCE_LP_RING();
564 }
565
566 static void i810EmitState(struct drm_device * dev)
567 {
568         drm_i810_private_t *dev_priv = dev->dev_private;
569         drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
570         unsigned int dirty = sarea_priv->dirty;
571
572         DRM_DEBUG("%x\n", dirty);
573
574         if (dirty & I810_UPLOAD_BUFFERS) {
575                 i810EmitDestVerified(dev, sarea_priv->BufferState);
576                 sarea_priv->dirty &= ~I810_UPLOAD_BUFFERS;
577         }
578
579         if (dirty & I810_UPLOAD_CTX) {
580                 i810EmitContextVerified(dev, sarea_priv->ContextState);
581                 sarea_priv->dirty &= ~I810_UPLOAD_CTX;
582         }
583
584         if (dirty & I810_UPLOAD_TEX0) {
585                 i810EmitTexVerified(dev, sarea_priv->TexState[0]);
586                 sarea_priv->dirty &= ~I810_UPLOAD_TEX0;
587         }
588
589         if (dirty & I810_UPLOAD_TEX1) {
590                 i810EmitTexVerified(dev, sarea_priv->TexState[1]);
591                 sarea_priv->dirty &= ~I810_UPLOAD_TEX1;
592         }
593 }
594
595 /* need to verify
596  */
597 static void i810_dma_dispatch_clear(struct drm_device * dev, int flags,
598                                     unsigned int clear_color,
599                                     unsigned int clear_zval)
600 {
601         drm_i810_private_t *dev_priv = dev->dev_private;
602         drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
603         int nbox = sarea_priv->nbox;
604         struct drm_clip_rect *pbox = sarea_priv->boxes;
605         int pitch = dev_priv->pitch;
606         int cpp = 2;
607         int i;
608         RING_LOCALS;
609
610         if (dev_priv->current_page == 1) {
611                 unsigned int tmp = flags;
612
613                 flags &= ~(I810_FRONT | I810_BACK);
614                 if (tmp & I810_FRONT)
615                         flags |= I810_BACK;
616                 if (tmp & I810_BACK)
617                         flags |= I810_FRONT;
618         }
619
620         i810_kernel_lost_context(dev);
621
622         if (nbox > I810_NR_SAREA_CLIPRECTS)
623                 nbox = I810_NR_SAREA_CLIPRECTS;
624
625         for (i = 0; i < nbox; i++, pbox++) {
626                 unsigned int x = pbox->x1;
627                 unsigned int y = pbox->y1;
628                 unsigned int width = (pbox->x2 - x) * cpp;
629                 unsigned int height = pbox->y2 - y;
630                 unsigned int start = y * pitch + x * cpp;
631
632                 if (pbox->x1 > pbox->x2 ||
633                     pbox->y1 > pbox->y2 ||
634                     pbox->x2 > dev_priv->w || pbox->y2 > dev_priv->h)
635                         continue;
636
637                 if (flags & I810_FRONT) {
638                         BEGIN_LP_RING(6);
639                         OUT_RING(BR00_BITBLT_CLIENT | BR00_OP_COLOR_BLT | 0x3);
640                         OUT_RING(BR13_SOLID_PATTERN | (0xF0 << 16) | pitch);
641                         OUT_RING((height << 16) | width);
642                         OUT_RING(start);
643                         OUT_RING(clear_color);
644                         OUT_RING(0);
645                         ADVANCE_LP_RING();
646                 }
647
648                 if (flags & I810_BACK) {
649                         BEGIN_LP_RING(6);
650                         OUT_RING(BR00_BITBLT_CLIENT | BR00_OP_COLOR_BLT | 0x3);
651                         OUT_RING(BR13_SOLID_PATTERN | (0xF0 << 16) | pitch);
652                         OUT_RING((height << 16) | width);
653                         OUT_RING(dev_priv->back_offset + start);
654                         OUT_RING(clear_color);
655                         OUT_RING(0);
656                         ADVANCE_LP_RING();
657                 }
658
659                 if (flags & I810_DEPTH) {
660                         BEGIN_LP_RING(6);
661                         OUT_RING(BR00_BITBLT_CLIENT | BR00_OP_COLOR_BLT | 0x3);
662                         OUT_RING(BR13_SOLID_PATTERN | (0xF0 << 16) | pitch);
663                         OUT_RING((height << 16) | width);
664                         OUT_RING(dev_priv->depth_offset + start);
665                         OUT_RING(clear_zval);
666                         OUT_RING(0);
667                         ADVANCE_LP_RING();
668                 }
669         }
670 }
671
672 static void i810_dma_dispatch_swap(struct drm_device * dev)
673 {
674         drm_i810_private_t *dev_priv = dev->dev_private;
675         drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
676         int nbox = sarea_priv->nbox;
677         struct drm_clip_rect *pbox = sarea_priv->boxes;
678         int pitch = dev_priv->pitch;
679         int cpp = 2;
680         int i;
681         RING_LOCALS;
682
683         DRM_DEBUG("swapbuffers\n");
684
685         i810_kernel_lost_context(dev);
686
687         if (nbox > I810_NR_SAREA_CLIPRECTS)
688                 nbox = I810_NR_SAREA_CLIPRECTS;
689
690         for (i = 0; i < nbox; i++, pbox++) {
691                 unsigned int w = pbox->x2 - pbox->x1;
692                 unsigned int h = pbox->y2 - pbox->y1;
693                 unsigned int dst = pbox->x1 * cpp + pbox->y1 * pitch;
694                 unsigned int start = dst;
695
696                 if (pbox->x1 > pbox->x2 ||
697                     pbox->y1 > pbox->y2 ||
698                     pbox->x2 > dev_priv->w || pbox->y2 > dev_priv->h)
699                         continue;
700
701                 BEGIN_LP_RING(6);
702                 OUT_RING(BR00_BITBLT_CLIENT | BR00_OP_SRC_COPY_BLT | 0x4);
703                 OUT_RING(pitch | (0xCC << 16));
704                 OUT_RING((h << 16) | (w * cpp));
705                 if (dev_priv->current_page == 0)
706                         OUT_RING(dev_priv->front_offset + start);
707                 else
708                         OUT_RING(dev_priv->back_offset + start);
709                 OUT_RING(pitch);
710                 if (dev_priv->current_page == 0)
711                         OUT_RING(dev_priv->back_offset + start);
712                 else
713                         OUT_RING(dev_priv->front_offset + start);
714                 ADVANCE_LP_RING();
715         }
716 }
717
718 static void i810_dma_dispatch_vertex(struct drm_device * dev,
719                                      struct drm_buf * buf, int discard, int used)
720 {
721         drm_i810_private_t *dev_priv = dev->dev_private;
722         drm_i810_buf_priv_t *buf_priv = buf->dev_private;
723         drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
724         struct drm_clip_rect *box = sarea_priv->boxes;
725         int nbox = sarea_priv->nbox;
726         unsigned long address = (unsigned long)buf->bus_address;
727         unsigned long start = address - dev->agp->base;
728         int i = 0;
729         RING_LOCALS;
730
731         i810_kernel_lost_context(dev);
732
733         if (nbox > I810_NR_SAREA_CLIPRECTS)
734                 nbox = I810_NR_SAREA_CLIPRECTS;
735
736         if (used > 4 * 1024)
737                 used = 0;
738
739         if (sarea_priv->dirty)
740                 i810EmitState(dev);
741
742         if (buf_priv->currently_mapped == I810_BUF_MAPPED) {
743                 unsigned int prim = (sarea_priv->vertex_prim & PR_MASK);
744
745                 *(u32 *) buf_priv->kernel_virtual =
746                     ((GFX_OP_PRIMITIVE | prim | ((used / 4) - 2)));
747
748                 if (used & 4) {
749                         *(u32 *) ((char *) buf_priv->kernel_virtual + used) = 0;
750                         used += 4;
751                 }
752
753                 i810_unmap_buffer(buf);
754         }
755
756         if (used) {
757                 do {
758                         if (i < nbox) {
759                                 BEGIN_LP_RING(4);
760                                 OUT_RING(GFX_OP_SCISSOR | SC_UPDATE_SCISSOR |
761                                          SC_ENABLE);
762                                 OUT_RING(GFX_OP_SCISSOR_INFO);
763                                 OUT_RING(box[i].x1 | (box[i].y1 << 16));
764                                 OUT_RING((box[i].x2 -
765                                           1) | ((box[i].y2 - 1) << 16));
766                                 ADVANCE_LP_RING();
767                         }
768
769                         BEGIN_LP_RING(4);
770                         OUT_RING(CMD_OP_BATCH_BUFFER);
771                         OUT_RING(start | BB1_PROTECTED);
772                         OUT_RING(start + used - 4);
773                         OUT_RING(0);
774                         ADVANCE_LP_RING();
775
776                 } while (++i < nbox);
777         }
778
779         if (discard) {
780                 dev_priv->counter++;
781
782                 (void)cmpxchg(buf_priv->in_use, I810_BUF_CLIENT,
783                               I810_BUF_HARDWARE);
784
785                 BEGIN_LP_RING(8);
786                 OUT_RING(CMD_STORE_DWORD_IDX);
787                 OUT_RING(20);
788                 OUT_RING(dev_priv->counter);
789                 OUT_RING(CMD_STORE_DWORD_IDX);
790                 OUT_RING(buf_priv->my_use_idx);
791                 OUT_RING(I810_BUF_FREE);
792                 OUT_RING(CMD_REPORT_HEAD);
793                 OUT_RING(0);
794                 ADVANCE_LP_RING();
795         }
796 }
797
798 static void i810_dma_dispatch_flip(struct drm_device * dev)
799 {
800         drm_i810_private_t *dev_priv = dev->dev_private;
801         int pitch = dev_priv->pitch;
802         RING_LOCALS;
803
804         DRM_DEBUG("page=%d pfCurrentPage=%d\n",
805                   dev_priv->current_page,
806                   dev_priv->sarea_priv->pf_current_page);
807
808         i810_kernel_lost_context(dev);
809
810         BEGIN_LP_RING(2);
811         OUT_RING(INST_PARSER_CLIENT | INST_OP_FLUSH | INST_FLUSH_MAP_CACHE);
812         OUT_RING(0);
813         ADVANCE_LP_RING();
814
815         BEGIN_LP_RING(I810_DEST_SETUP_SIZE + 2);
816         /* On i815 at least ASYNC is buggy */
817         /* pitch<<5 is from 11.2.8 p158,
818            its the pitch / 8 then left shifted 8,
819            so (pitch >> 3) << 8 */
820         OUT_RING(CMD_OP_FRONTBUFFER_INFO | (pitch << 5) /*| ASYNC_FLIP */ );
821         if (dev_priv->current_page == 0) {
822                 OUT_RING(dev_priv->back_offset);
823                 dev_priv->current_page = 1;
824         } else {
825                 OUT_RING(dev_priv->front_offset);
826                 dev_priv->current_page = 0;
827         }
828         OUT_RING(0);
829         ADVANCE_LP_RING();
830
831         BEGIN_LP_RING(2);
832         OUT_RING(CMD_OP_WAIT_FOR_EVENT | WAIT_FOR_PLANE_A_FLIP);
833         OUT_RING(0);
834         ADVANCE_LP_RING();
835
836         /* Increment the frame counter.  The client-side 3D driver must
837          * throttle the framerate by waiting for this value before
838          * performing the swapbuffer ioctl.
839          */
840         dev_priv->sarea_priv->pf_current_page = dev_priv->current_page;
841
842 }
843
844 static void i810_dma_quiescent(struct drm_device * dev)
845 {
846         drm_i810_private_t *dev_priv = dev->dev_private;
847         RING_LOCALS;
848
849         i810_kernel_lost_context(dev);
850
851         BEGIN_LP_RING(4);
852         OUT_RING(INST_PARSER_CLIENT | INST_OP_FLUSH | INST_FLUSH_MAP_CACHE);
853         OUT_RING(CMD_REPORT_HEAD);
854         OUT_RING(0);
855         OUT_RING(0);
856         ADVANCE_LP_RING();
857
858         i810_wait_ring(dev, dev_priv->ring.Size - 8);
859 }
860
861 static int i810_flush_queue(struct drm_device * dev)
862 {
863         drm_i810_private_t *dev_priv = dev->dev_private;
864         struct drm_device_dma *dma = dev->dma;
865         int i, ret = 0;
866         RING_LOCALS;
867
868         i810_kernel_lost_context(dev);
869
870         BEGIN_LP_RING(2);
871         OUT_RING(CMD_REPORT_HEAD);
872         OUT_RING(0);
873         ADVANCE_LP_RING();
874
875         i810_wait_ring(dev, dev_priv->ring.Size - 8);
876
877         for (i = 0; i < dma->buf_count; i++) {
878                 struct drm_buf *buf = dma->buflist[i];
879                 drm_i810_buf_priv_t *buf_priv = buf->dev_private;
880
881                 int used = cmpxchg(buf_priv->in_use, I810_BUF_HARDWARE,
882                                    I810_BUF_FREE);
883
884                 if (used == I810_BUF_HARDWARE)
885                         DRM_DEBUG("reclaimed from HARDWARE\n");
886                 if (used == I810_BUF_CLIENT)
887                         DRM_DEBUG("still on client\n");
888         }
889
890         return ret;
891 }
892
893 /* Must be called with the lock held */
894 static void i810_reclaim_buffers(struct drm_device * dev,
895                                  struct drm_file *file_priv)
896 {
897         struct drm_device_dma *dma = dev->dma;
898         int i;
899
900         if (!dma)
901                 return;
902         if (!dev->dev_private)
903                 return;
904         if (!dma->buflist)
905                 return;
906
907         i810_flush_queue(dev);
908
909         for (i = 0; i < dma->buf_count; i++) {
910                 struct drm_buf *buf = dma->buflist[i];
911                 drm_i810_buf_priv_t *buf_priv = buf->dev_private;
912
913                 if (buf->file_priv == file_priv && buf_priv) {
914                         int used = cmpxchg(buf_priv->in_use, I810_BUF_CLIENT,
915                                            I810_BUF_FREE);
916
917                         if (used == I810_BUF_CLIENT)
918                                 DRM_DEBUG("reclaimed from client\n");
919                         if (buf_priv->currently_mapped == I810_BUF_MAPPED)
920                                 buf_priv->currently_mapped = I810_BUF_UNMAPPED;
921                 }
922         }
923 }
924
925 static int i810_flush_ioctl(struct drm_device *dev, void *data,
926                             struct drm_file *file_priv)
927 {
928         LOCK_TEST_WITH_RETURN(dev, file_priv);
929
930         i810_flush_queue(dev);
931         return 0;
932 }
933
934 static int i810_dma_vertex(struct drm_device *dev, void *data,
935                            struct drm_file *file_priv)
936 {
937         struct drm_device_dma *dma = dev->dma;
938         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
939         u32 *hw_status = dev_priv->hw_status_page;
940         drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
941             dev_priv->sarea_priv;
942         drm_i810_vertex_t *vertex = data;
943
944         LOCK_TEST_WITH_RETURN(dev, file_priv);
945
946         DRM_DEBUG("idx %d used %d discard %d\n",
947                   vertex->idx, vertex->used, vertex->discard);
948
949         if (vertex->idx < 0 || vertex->idx > dma->buf_count)
950                 return -EINVAL;
951
952         i810_dma_dispatch_vertex(dev,
953                                  dma->buflist[vertex->idx],
954                                  vertex->discard, vertex->used);
955
956         atomic_add(vertex->used, &dev->counts[_DRM_STAT_SECONDARY]);
957         atomic_inc(&dev->counts[_DRM_STAT_DMA]);
958         sarea_priv->last_enqueue = dev_priv->counter - 1;
959         sarea_priv->last_dispatch = (int)hw_status[5];
960
961         return 0;
962 }
963
964 static int i810_clear_bufs(struct drm_device *dev, void *data,
965                            struct drm_file *file_priv)
966 {
967         drm_i810_clear_t *clear = data;
968
969         LOCK_TEST_WITH_RETURN(dev, file_priv);
970
971         /* GH: Someone's doing nasty things... */
972         if (!dev->dev_private) {
973                 return -EINVAL;
974         }
975
976         i810_dma_dispatch_clear(dev, clear->flags,
977                                 clear->clear_color, clear->clear_depth);
978         return 0;
979 }
980
981 static int i810_swap_bufs(struct drm_device *dev, void *data,
982                           struct drm_file *file_priv)
983 {
984         DRM_DEBUG("\n");
985
986         LOCK_TEST_WITH_RETURN(dev, file_priv);
987
988         i810_dma_dispatch_swap(dev);
989         return 0;
990 }
991
992 static int i810_getage(struct drm_device *dev, void *data,
993                        struct drm_file *file_priv)
994 {
995         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
996         u32 *hw_status = dev_priv->hw_status_page;
997         drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
998             dev_priv->sarea_priv;
999
1000         sarea_priv->last_dispatch = (int)hw_status[5];
1001         return 0;
1002 }
1003
1004 static int i810_getbuf(struct drm_device *dev, void *data,
1005                        struct drm_file *file_priv)
1006 {
1007         int retcode = 0;
1008         drm_i810_dma_t *d = data;
1009         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1010         u32 *hw_status = dev_priv->hw_status_page;
1011         drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
1012             dev_priv->sarea_priv;
1013
1014         LOCK_TEST_WITH_RETURN(dev, file_priv);
1015
1016         d->granted = 0;
1017
1018         retcode = i810_dma_get_buffer(dev, d, file_priv);
1019
1020         DRM_DEBUG("i810_dma: %d returning %d, granted = %d\n",
1021                   task_pid_nr(current), retcode, d->granted);
1022
1023         sarea_priv->last_dispatch = (int)hw_status[5];
1024
1025         return retcode;
1026 }
1027
1028 static int i810_copybuf(struct drm_device *dev, void *data,
1029                         struct drm_file *file_priv)
1030 {
1031         /* Never copy - 2.4.x doesn't need it */
1032         return 0;
1033 }
1034
1035 static int i810_docopy(struct drm_device *dev, void *data,
1036                         struct drm_file *file_priv)
1037 {
1038         /* Never copy - 2.4.x doesn't need it */
1039         return 0;
1040 }
1041
1042 static void i810_dma_dispatch_mc(struct drm_device * dev, struct drm_buf * buf, int used,
1043                                  unsigned int last_render)
1044 {
1045         drm_i810_private_t *dev_priv = dev->dev_private;
1046         drm_i810_buf_priv_t *buf_priv = buf->dev_private;
1047         drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
1048         unsigned long address = (unsigned long)buf->bus_address;
1049         unsigned long start = address - dev->agp->base;
1050         int u;
1051         RING_LOCALS;
1052
1053         i810_kernel_lost_context(dev);
1054
1055         u = cmpxchg(buf_priv->in_use, I810_BUF_CLIENT, I810_BUF_HARDWARE);
1056         if (u != I810_BUF_CLIENT) {
1057                 DRM_DEBUG("MC found buffer that isn't mine!\n");
1058         }
1059
1060         if (used > 4 * 1024)
1061                 used = 0;
1062
1063         sarea_priv->dirty = 0x7f;
1064
1065         DRM_DEBUG("addr 0x%lx, used 0x%x\n", address, used);
1066
1067         dev_priv->counter++;
1068         DRM_DEBUG("dispatch counter : %ld\n", dev_priv->counter);
1069         DRM_DEBUG("start : %lx\n", start);
1070         DRM_DEBUG("used : %d\n", used);
1071         DRM_DEBUG("start + used - 4 : %ld\n", start + used - 4);
1072
1073         if (buf_priv->currently_mapped == I810_BUF_MAPPED) {
1074                 if (used & 4) {
1075                         *(u32 *) ((char *) buf_priv->virtual + used) = 0;
1076                         used += 4;
1077                 }
1078
1079                 i810_unmap_buffer(buf);
1080         }
1081         BEGIN_LP_RING(4);
1082         OUT_RING(CMD_OP_BATCH_BUFFER);
1083         OUT_RING(start | BB1_PROTECTED);
1084         OUT_RING(start + used - 4);
1085         OUT_RING(0);
1086         ADVANCE_LP_RING();
1087
1088         BEGIN_LP_RING(8);
1089         OUT_RING(CMD_STORE_DWORD_IDX);
1090         OUT_RING(buf_priv->my_use_idx);
1091         OUT_RING(I810_BUF_FREE);
1092         OUT_RING(0);
1093
1094         OUT_RING(CMD_STORE_DWORD_IDX);
1095         OUT_RING(16);
1096         OUT_RING(last_render);
1097         OUT_RING(0);
1098         ADVANCE_LP_RING();
1099 }
1100
1101 static int i810_dma_mc(struct drm_device *dev, void *data,
1102                        struct drm_file *file_priv)
1103 {
1104         struct drm_device_dma *dma = dev->dma;
1105         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1106         u32 *hw_status = dev_priv->hw_status_page;
1107         drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
1108             dev_priv->sarea_priv;
1109         drm_i810_mc_t *mc = data;
1110
1111         LOCK_TEST_WITH_RETURN(dev, file_priv);
1112
1113         if (mc->idx >= dma->buf_count || mc->idx < 0)
1114                 return -EINVAL;
1115
1116         i810_dma_dispatch_mc(dev, dma->buflist[mc->idx], mc->used,
1117                              mc->last_render);
1118
1119         atomic_add(mc->used, &dev->counts[_DRM_STAT_SECONDARY]);
1120         atomic_inc(&dev->counts[_DRM_STAT_DMA]);
1121         sarea_priv->last_enqueue = dev_priv->counter - 1;
1122         sarea_priv->last_dispatch = (int)hw_status[5];
1123
1124         return 0;
1125 }
1126
1127 static int i810_rstatus(struct drm_device *dev, void *data,
1128                         struct drm_file *file_priv)
1129 {
1130         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1131
1132         return (int)(((u32 *) (dev_priv->hw_status_page))[4]);
1133 }
1134
1135 static int i810_ov0_info(struct drm_device *dev, void *data,
1136                          struct drm_file *file_priv)
1137 {
1138         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1139         drm_i810_overlay_t *ov = data;
1140
1141         ov->offset = dev_priv->overlay_offset;
1142         ov->physical = dev_priv->overlay_physical;
1143
1144         return 0;
1145 }
1146
1147 static int i810_fstatus(struct drm_device *dev, void *data,
1148                         struct drm_file *file_priv)
1149 {
1150         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1151
1152         LOCK_TEST_WITH_RETURN(dev, file_priv);
1153         return I810_READ(0x30008);
1154 }
1155
1156 static int i810_ov0_flip(struct drm_device *dev, void *data,
1157                          struct drm_file *file_priv)
1158 {
1159         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1160
1161         LOCK_TEST_WITH_RETURN(dev, file_priv);
1162
1163         //Tell the overlay to update
1164         I810_WRITE(0x30000, dev_priv->overlay_physical | 0x80000000);
1165
1166         return 0;
1167 }
1168
1169 /* Not sure why this isn't set all the time:
1170  */
1171 static void i810_do_init_pageflip(struct drm_device * dev)
1172 {
1173         drm_i810_private_t *dev_priv = dev->dev_private;
1174
1175         DRM_DEBUG("\n");
1176         dev_priv->page_flipping = 1;
1177         dev_priv->current_page = 0;
1178         dev_priv->sarea_priv->pf_current_page = dev_priv->current_page;
1179 }
1180
1181 static int i810_do_cleanup_pageflip(struct drm_device * dev)
1182 {
1183         drm_i810_private_t *dev_priv = dev->dev_private;
1184
1185         DRM_DEBUG("\n");
1186         if (dev_priv->current_page != 0)
1187                 i810_dma_dispatch_flip(dev);
1188
1189         dev_priv->page_flipping = 0;
1190         return 0;
1191 }
1192
1193 static int i810_flip_bufs(struct drm_device *dev, void *data,
1194                           struct drm_file *file_priv)
1195 {
1196         drm_i810_private_t *dev_priv = dev->dev_private;
1197
1198         DRM_DEBUG("\n");
1199
1200         LOCK_TEST_WITH_RETURN(dev, file_priv);
1201
1202         if (!dev_priv->page_flipping)
1203                 i810_do_init_pageflip(dev);
1204
1205         i810_dma_dispatch_flip(dev);
1206         return 0;
1207 }
1208
1209 int i810_driver_load(struct drm_device *dev, unsigned long flags)
1210 {
1211         /* i810 has 4 more counters */
1212         dev->counters += 4;
1213         dev->types[6] = _DRM_STAT_IRQ;
1214         dev->types[7] = _DRM_STAT_PRIMARY;
1215         dev->types[8] = _DRM_STAT_SECONDARY;
1216         dev->types[9] = _DRM_STAT_DMA;
1217
1218         return 0;
1219 }
1220
1221 void i810_driver_lastclose(struct drm_device * dev)
1222 {
1223         i810_dma_cleanup(dev);
1224 }
1225
1226 void i810_driver_preclose(struct drm_device * dev, struct drm_file *file_priv)
1227 {
1228         if (dev->dev_private) {
1229                 drm_i810_private_t *dev_priv = dev->dev_private;
1230                 if (dev_priv->page_flipping) {
1231                         i810_do_cleanup_pageflip(dev);
1232                 }
1233         }
1234 }
1235
1236 void i810_driver_reclaim_buffers_locked(struct drm_device * dev,
1237                                         struct drm_file *file_priv)
1238 {
1239         i810_reclaim_buffers(dev, file_priv);
1240 }
1241
1242 int i810_driver_dma_quiescent(struct drm_device * dev)
1243 {
1244         i810_dma_quiescent(dev);
1245         return 0;
1246 }
1247
1248 struct drm_ioctl_desc i810_ioctls[] = {
1249         DRM_IOCTL_DEF(DRM_I810_INIT, i810_dma_init, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
1250         DRM_IOCTL_DEF(DRM_I810_VERTEX, i810_dma_vertex, DRM_AUTH),
1251         DRM_IOCTL_DEF(DRM_I810_CLEAR, i810_clear_bufs, DRM_AUTH),
1252         DRM_IOCTL_DEF(DRM_I810_FLUSH, i810_flush_ioctl, DRM_AUTH),
1253         DRM_IOCTL_DEF(DRM_I810_GETAGE, i810_getage, DRM_AUTH),
1254         DRM_IOCTL_DEF(DRM_I810_GETBUF, i810_getbuf, DRM_AUTH),
1255         DRM_IOCTL_DEF(DRM_I810_SWAP, i810_swap_bufs, DRM_AUTH),
1256         DRM_IOCTL_DEF(DRM_I810_COPY, i810_copybuf, DRM_AUTH),
1257         DRM_IOCTL_DEF(DRM_I810_DOCOPY, i810_docopy, DRM_AUTH),
1258         DRM_IOCTL_DEF(DRM_I810_OV0INFO, i810_ov0_info, DRM_AUTH),
1259         DRM_IOCTL_DEF(DRM_I810_FSTATUS, i810_fstatus, DRM_AUTH),
1260         DRM_IOCTL_DEF(DRM_I810_OV0FLIP, i810_ov0_flip, DRM_AUTH),
1261         DRM_IOCTL_DEF(DRM_I810_MC, i810_dma_mc, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
1262         DRM_IOCTL_DEF(DRM_I810_RSTATUS, i810_rstatus, DRM_AUTH),
1263         DRM_IOCTL_DEF(DRM_I810_FLIP, i810_flip_bufs, DRM_AUTH)
1264 };
1265
1266 int i810_max_ioctl = DRM_ARRAY_SIZE(i810_ioctls);
1267
1268 /**
1269  * Determine if the device really is AGP or not.
1270  *
1271  * All Intel graphics chipsets are treated as AGP, even if they are really
1272  * PCI-e.
1273  *
1274  * \param dev   The device to be tested.
1275  *
1276  * \returns
1277  * A value of 1 is always retured to indictate every i810 is AGP.
1278  */
1279 int i810_driver_device_is_agp(struct drm_device * dev)
1280 {
1281         return 1;
1282 }