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UBUNTU: Ubuntu-4.13.0-45.50
[mirror_ubuntu-artful-kernel.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 <drm/drmP.h>
34 #include <drm/i810_drm.h>
35 #include "i810_drv.h"
36 #include <linux/interrupt.h> /* For task queue support */
37 #include <linux/delay.h>
38 #include <linux/slab.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 return NULL;
66 }
67
68 /* This should only be called if the buffer is not sent to the hardware
69 * yet, the hardware updates in use for us once its on the ring buffer.
70 */
71
72 static int i810_freelist_put(struct drm_device *dev, struct drm_buf *buf)
73 {
74 drm_i810_buf_priv_t *buf_priv = buf->dev_private;
75 int used;
76
77 /* In use is already a pointer */
78 used = cmpxchg(buf_priv->in_use, I810_BUF_CLIENT, I810_BUF_FREE);
79 if (used != I810_BUF_CLIENT) {
80 DRM_ERROR("Freeing buffer thats not in use : %d\n", buf->idx);
81 return -EINVAL;
82 }
83
84 return 0;
85 }
86
87 static int i810_mmap_buffers(struct file *filp, struct vm_area_struct *vma)
88 {
89 struct drm_file *priv = filp->private_data;
90 struct drm_device *dev;
91 drm_i810_private_t *dev_priv;
92 struct drm_buf *buf;
93 drm_i810_buf_priv_t *buf_priv;
94
95 dev = priv->minor->dev;
96 dev_priv = dev->dev_private;
97 buf = dev_priv->mmap_buffer;
98 buf_priv = buf->dev_private;
99
100 vma->vm_flags |= VM_DONTCOPY;
101
102 buf_priv->currently_mapped = I810_BUF_MAPPED;
103
104 if (io_remap_pfn_range(vma, vma->vm_start,
105 vma->vm_pgoff,
106 vma->vm_end - vma->vm_start, vma->vm_page_prot))
107 return -EAGAIN;
108 return 0;
109 }
110
111 static const struct file_operations i810_buffer_fops = {
112 .open = drm_open,
113 .release = drm_release,
114 .unlocked_ioctl = drm_ioctl,
115 .mmap = i810_mmap_buffers,
116 .compat_ioctl = drm_compat_ioctl,
117 .llseek = noop_llseek,
118 };
119
120 static int i810_map_buffer(struct drm_buf *buf, struct drm_file *file_priv)
121 {
122 struct drm_device *dev = file_priv->minor->dev;
123 drm_i810_buf_priv_t *buf_priv = buf->dev_private;
124 drm_i810_private_t *dev_priv = dev->dev_private;
125 const struct file_operations *old_fops;
126 int retcode = 0;
127
128 if (buf_priv->currently_mapped == I810_BUF_MAPPED)
129 return -EINVAL;
130
131 /* This is all entirely broken */
132 old_fops = file_priv->filp->f_op;
133 file_priv->filp->f_op = &i810_buffer_fops;
134 dev_priv->mmap_buffer = buf;
135 buf_priv->virtual = (void *)vm_mmap(file_priv->filp, 0, buf->total,
136 PROT_READ | PROT_WRITE,
137 MAP_SHARED, buf->bus_address);
138 dev_priv->mmap_buffer = NULL;
139 file_priv->filp->f_op = old_fops;
140 if (IS_ERR(buf_priv->virtual)) {
141 /* Real error */
142 DRM_ERROR("mmap error\n");
143 retcode = PTR_ERR(buf_priv->virtual);
144 buf_priv->virtual = NULL;
145 }
146
147 return retcode;
148 }
149
150 static int i810_unmap_buffer(struct drm_buf *buf)
151 {
152 drm_i810_buf_priv_t *buf_priv = buf->dev_private;
153 int retcode = 0;
154
155 if (buf_priv->currently_mapped != I810_BUF_MAPPED)
156 return -EINVAL;
157
158 retcode = vm_munmap((unsigned long)buf_priv->virtual,
159 (size_t) buf->total);
160
161 buf_priv->currently_mapped = I810_BUF_UNMAPPED;
162 buf_priv->virtual = NULL;
163
164 return retcode;
165 }
166
167 static int i810_dma_get_buffer(struct drm_device *dev, drm_i810_dma_t *d,
168 struct drm_file *file_priv)
169 {
170 struct drm_buf *buf;
171 drm_i810_buf_priv_t *buf_priv;
172 int retcode = 0;
173
174 buf = i810_freelist_get(dev);
175 if (!buf) {
176 retcode = -ENOMEM;
177 DRM_DEBUG("retcode=%d\n", retcode);
178 return retcode;
179 }
180
181 retcode = i810_map_buffer(buf, file_priv);
182 if (retcode) {
183 i810_freelist_put(dev, buf);
184 DRM_ERROR("mapbuf failed, retcode %d\n", retcode);
185 return retcode;
186 }
187 buf->file_priv = file_priv;
188 buf_priv = buf->dev_private;
189 d->granted = 1;
190 d->request_idx = buf->idx;
191 d->request_size = buf->total;
192 d->virtual = buf_priv->virtual;
193
194 return retcode;
195 }
196
197 static int i810_dma_cleanup(struct drm_device *dev)
198 {
199 struct drm_device_dma *dma = dev->dma;
200
201 /* Make sure interrupts are disabled here because the uninstall ioctl
202 * may not have been called from userspace and after dev_private
203 * is freed, it's too late.
204 */
205 if (drm_core_check_feature(dev, DRIVER_HAVE_IRQ) && dev->irq_enabled)
206 drm_irq_uninstall(dev);
207
208 if (dev->dev_private) {
209 int i;
210 drm_i810_private_t *dev_priv =
211 (drm_i810_private_t *) dev->dev_private;
212
213 if (dev_priv->ring.virtual_start)
214 drm_legacy_ioremapfree(&dev_priv->ring.map, dev);
215 if (dev_priv->hw_status_page) {
216 pci_free_consistent(dev->pdev, PAGE_SIZE,
217 dev_priv->hw_status_page,
218 dev_priv->dma_status_page);
219 }
220 kfree(dev->dev_private);
221 dev->dev_private = NULL;
222
223 for (i = 0; i < dma->buf_count; i++) {
224 struct drm_buf *buf = dma->buflist[i];
225 drm_i810_buf_priv_t *buf_priv = buf->dev_private;
226
227 if (buf_priv->kernel_virtual && buf->total)
228 drm_legacy_ioremapfree(&buf_priv->map, dev);
229 }
230 }
231 return 0;
232 }
233
234 static int i810_wait_ring(struct drm_device *dev, int n)
235 {
236 drm_i810_private_t *dev_priv = dev->dev_private;
237 drm_i810_ring_buffer_t *ring = &(dev_priv->ring);
238 int iters = 0;
239 unsigned long end;
240 unsigned int last_head = I810_READ(LP_RING + RING_HEAD) & HEAD_ADDR;
241
242 end = jiffies + (HZ * 3);
243 while (ring->space < n) {
244 ring->head = I810_READ(LP_RING + RING_HEAD) & HEAD_ADDR;
245 ring->space = ring->head - (ring->tail + 8);
246 if (ring->space < 0)
247 ring->space += ring->Size;
248
249 if (ring->head != last_head) {
250 end = jiffies + (HZ * 3);
251 last_head = ring->head;
252 }
253
254 iters++;
255 if (time_before(end, jiffies)) {
256 DRM_ERROR("space: %d wanted %d\n", ring->space, n);
257 DRM_ERROR("lockup\n");
258 goto out_wait_ring;
259 }
260 udelay(1);
261 }
262
263 out_wait_ring:
264 return iters;
265 }
266
267 static void i810_kernel_lost_context(struct drm_device *dev)
268 {
269 drm_i810_private_t *dev_priv = dev->dev_private;
270 drm_i810_ring_buffer_t *ring = &(dev_priv->ring);
271
272 ring->head = I810_READ(LP_RING + RING_HEAD) & HEAD_ADDR;
273 ring->tail = I810_READ(LP_RING + RING_TAIL);
274 ring->space = ring->head - (ring->tail + 8);
275 if (ring->space < 0)
276 ring->space += ring->Size;
277 }
278
279 static int i810_freelist_init(struct drm_device *dev, drm_i810_private_t *dev_priv)
280 {
281 struct drm_device_dma *dma = dev->dma;
282 int my_idx = 24;
283 u32 *hw_status = (u32 *) (dev_priv->hw_status_page + my_idx);
284 int i;
285
286 if (dma->buf_count > 1019) {
287 /* Not enough space in the status page for the freelist */
288 return -EINVAL;
289 }
290
291 for (i = 0; i < dma->buf_count; i++) {
292 struct drm_buf *buf = dma->buflist[i];
293 drm_i810_buf_priv_t *buf_priv = buf->dev_private;
294
295 buf_priv->in_use = hw_status++;
296 buf_priv->my_use_idx = my_idx;
297 my_idx += 4;
298
299 *buf_priv->in_use = I810_BUF_FREE;
300
301 buf_priv->map.offset = buf->bus_address;
302 buf_priv->map.size = buf->total;
303 buf_priv->map.type = _DRM_AGP;
304 buf_priv->map.flags = 0;
305 buf_priv->map.mtrr = 0;
306
307 drm_legacy_ioremap(&buf_priv->map, dev);
308 buf_priv->kernel_virtual = buf_priv->map.handle;
309
310 }
311 return 0;
312 }
313
314 static int i810_dma_initialize(struct drm_device *dev,
315 drm_i810_private_t *dev_priv,
316 drm_i810_init_t *init)
317 {
318 struct drm_map_list *r_list;
319 memset(dev_priv, 0, sizeof(drm_i810_private_t));
320
321 list_for_each_entry(r_list, &dev->maplist, head) {
322 if (r_list->map &&
323 r_list->map->type == _DRM_SHM &&
324 r_list->map->flags & _DRM_CONTAINS_LOCK) {
325 dev_priv->sarea_map = r_list->map;
326 break;
327 }
328 }
329 if (!dev_priv->sarea_map) {
330 dev->dev_private = (void *)dev_priv;
331 i810_dma_cleanup(dev);
332 DRM_ERROR("can not find sarea!\n");
333 return -EINVAL;
334 }
335 dev_priv->mmio_map = drm_legacy_findmap(dev, init->mmio_offset);
336 if (!dev_priv->mmio_map) {
337 dev->dev_private = (void *)dev_priv;
338 i810_dma_cleanup(dev);
339 DRM_ERROR("can not find mmio map!\n");
340 return -EINVAL;
341 }
342 dev->agp_buffer_token = init->buffers_offset;
343 dev->agp_buffer_map = drm_legacy_findmap(dev, init->buffers_offset);
344 if (!dev->agp_buffer_map) {
345 dev->dev_private = (void *)dev_priv;
346 i810_dma_cleanup(dev);
347 DRM_ERROR("can not find dma buffer map!\n");
348 return -EINVAL;
349 }
350
351 dev_priv->sarea_priv = (drm_i810_sarea_t *)
352 ((u8 *) dev_priv->sarea_map->handle + init->sarea_priv_offset);
353
354 dev_priv->ring.Start = init->ring_start;
355 dev_priv->ring.End = init->ring_end;
356 dev_priv->ring.Size = init->ring_size;
357
358 dev_priv->ring.map.offset = dev->agp->base + init->ring_start;
359 dev_priv->ring.map.size = init->ring_size;
360 dev_priv->ring.map.type = _DRM_AGP;
361 dev_priv->ring.map.flags = 0;
362 dev_priv->ring.map.mtrr = 0;
363
364 drm_legacy_ioremap(&dev_priv->ring.map, dev);
365
366 if (dev_priv->ring.map.handle == NULL) {
367 dev->dev_private = (void *)dev_priv;
368 i810_dma_cleanup(dev);
369 DRM_ERROR("can not ioremap virtual address for"
370 " ring buffer\n");
371 return -ENOMEM;
372 }
373
374 dev_priv->ring.virtual_start = dev_priv->ring.map.handle;
375
376 dev_priv->ring.tail_mask = dev_priv->ring.Size - 1;
377
378 dev_priv->w = init->w;
379 dev_priv->h = init->h;
380 dev_priv->pitch = init->pitch;
381 dev_priv->back_offset = init->back_offset;
382 dev_priv->depth_offset = init->depth_offset;
383 dev_priv->front_offset = init->front_offset;
384
385 dev_priv->overlay_offset = init->overlay_offset;
386 dev_priv->overlay_physical = init->overlay_physical;
387
388 dev_priv->front_di1 = init->front_offset | init->pitch_bits;
389 dev_priv->back_di1 = init->back_offset | init->pitch_bits;
390 dev_priv->zi1 = init->depth_offset | init->pitch_bits;
391
392 /* Program Hardware Status Page */
393 dev_priv->hw_status_page =
394 pci_zalloc_consistent(dev->pdev, PAGE_SIZE,
395 &dev_priv->dma_status_page);
396 if (!dev_priv->hw_status_page) {
397 dev->dev_private = (void *)dev_priv;
398 i810_dma_cleanup(dev);
399 DRM_ERROR("Can not allocate hardware status page\n");
400 return -ENOMEM;
401 }
402 DRM_DEBUG("hw status page @ %p\n", dev_priv->hw_status_page);
403
404 I810_WRITE(0x02080, dev_priv->dma_status_page);
405 DRM_DEBUG("Enabled hardware status page\n");
406
407 /* Now we need to init our freelist */
408 if (i810_freelist_init(dev, dev_priv) != 0) {
409 dev->dev_private = (void *)dev_priv;
410 i810_dma_cleanup(dev);
411 DRM_ERROR("Not enough space in the status page for"
412 " the freelist\n");
413 return -ENOMEM;
414 }
415 dev->dev_private = (void *)dev_priv;
416
417 return 0;
418 }
419
420 static int i810_dma_init(struct drm_device *dev, void *data,
421 struct drm_file *file_priv)
422 {
423 drm_i810_private_t *dev_priv;
424 drm_i810_init_t *init = data;
425 int retcode = 0;
426
427 switch (init->func) {
428 case I810_INIT_DMA_1_4:
429 DRM_INFO("Using v1.4 init.\n");
430 dev_priv = kmalloc(sizeof(drm_i810_private_t), GFP_KERNEL);
431 if (dev_priv == NULL)
432 return -ENOMEM;
433 retcode = i810_dma_initialize(dev, dev_priv, init);
434 break;
435
436 case I810_CLEANUP_DMA:
437 DRM_INFO("DMA Cleanup\n");
438 retcode = i810_dma_cleanup(dev);
439 break;
440 default:
441 return -EINVAL;
442 }
443
444 return retcode;
445 }
446
447 /* Most efficient way to verify state for the i810 is as it is
448 * emitted. Non-conformant state is silently dropped.
449 *
450 * Use 'volatile' & local var tmp to force the emitted values to be
451 * identical to the verified ones.
452 */
453 static void i810EmitContextVerified(struct drm_device *dev,
454 volatile unsigned int *code)
455 {
456 drm_i810_private_t *dev_priv = dev->dev_private;
457 int i, j = 0;
458 unsigned int tmp;
459 RING_LOCALS;
460
461 BEGIN_LP_RING(I810_CTX_SETUP_SIZE);
462
463 OUT_RING(GFX_OP_COLOR_FACTOR);
464 OUT_RING(code[I810_CTXREG_CF1]);
465
466 OUT_RING(GFX_OP_STIPPLE);
467 OUT_RING(code[I810_CTXREG_ST1]);
468
469 for (i = 4; i < I810_CTX_SETUP_SIZE; i++) {
470 tmp = code[i];
471
472 if ((tmp & (7 << 29)) == (3 << 29) &&
473 (tmp & (0x1f << 24)) < (0x1d << 24)) {
474 OUT_RING(tmp);
475 j++;
476 } else
477 printk("constext state dropped!!!\n");
478 }
479
480 if (j & 1)
481 OUT_RING(0);
482
483 ADVANCE_LP_RING();
484 }
485
486 static void i810EmitTexVerified(struct drm_device *dev, volatile unsigned int *code)
487 {
488 drm_i810_private_t *dev_priv = dev->dev_private;
489 int i, j = 0;
490 unsigned int tmp;
491 RING_LOCALS;
492
493 BEGIN_LP_RING(I810_TEX_SETUP_SIZE);
494
495 OUT_RING(GFX_OP_MAP_INFO);
496 OUT_RING(code[I810_TEXREG_MI1]);
497 OUT_RING(code[I810_TEXREG_MI2]);
498 OUT_RING(code[I810_TEXREG_MI3]);
499
500 for (i = 4; i < I810_TEX_SETUP_SIZE; i++) {
501 tmp = code[i];
502
503 if ((tmp & (7 << 29)) == (3 << 29) &&
504 (tmp & (0x1f << 24)) < (0x1d << 24)) {
505 OUT_RING(tmp);
506 j++;
507 } else
508 printk("texture state dropped!!!\n");
509 }
510
511 if (j & 1)
512 OUT_RING(0);
513
514 ADVANCE_LP_RING();
515 }
516
517 /* Need to do some additional checking when setting the dest buffer.
518 */
519 static void i810EmitDestVerified(struct drm_device *dev,
520 volatile unsigned int *code)
521 {
522 drm_i810_private_t *dev_priv = dev->dev_private;
523 unsigned int tmp;
524 RING_LOCALS;
525
526 BEGIN_LP_RING(I810_DEST_SETUP_SIZE + 2);
527
528 tmp = code[I810_DESTREG_DI1];
529 if (tmp == dev_priv->front_di1 || tmp == dev_priv->back_di1) {
530 OUT_RING(CMD_OP_DESTBUFFER_INFO);
531 OUT_RING(tmp);
532 } else
533 DRM_DEBUG("bad di1 %x (allow %x or %x)\n",
534 tmp, dev_priv->front_di1, dev_priv->back_di1);
535
536 /* invarient:
537 */
538 OUT_RING(CMD_OP_Z_BUFFER_INFO);
539 OUT_RING(dev_priv->zi1);
540
541 OUT_RING(GFX_OP_DESTBUFFER_VARS);
542 OUT_RING(code[I810_DESTREG_DV1]);
543
544 OUT_RING(GFX_OP_DRAWRECT_INFO);
545 OUT_RING(code[I810_DESTREG_DR1]);
546 OUT_RING(code[I810_DESTREG_DR2]);
547 OUT_RING(code[I810_DESTREG_DR3]);
548 OUT_RING(code[I810_DESTREG_DR4]);
549 OUT_RING(0);
550
551 ADVANCE_LP_RING();
552 }
553
554 static void i810EmitState(struct drm_device *dev)
555 {
556 drm_i810_private_t *dev_priv = dev->dev_private;
557 drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
558 unsigned int dirty = sarea_priv->dirty;
559
560 DRM_DEBUG("%x\n", dirty);
561
562 if (dirty & I810_UPLOAD_BUFFERS) {
563 i810EmitDestVerified(dev, sarea_priv->BufferState);
564 sarea_priv->dirty &= ~I810_UPLOAD_BUFFERS;
565 }
566
567 if (dirty & I810_UPLOAD_CTX) {
568 i810EmitContextVerified(dev, sarea_priv->ContextState);
569 sarea_priv->dirty &= ~I810_UPLOAD_CTX;
570 }
571
572 if (dirty & I810_UPLOAD_TEX0) {
573 i810EmitTexVerified(dev, sarea_priv->TexState[0]);
574 sarea_priv->dirty &= ~I810_UPLOAD_TEX0;
575 }
576
577 if (dirty & I810_UPLOAD_TEX1) {
578 i810EmitTexVerified(dev, sarea_priv->TexState[1]);
579 sarea_priv->dirty &= ~I810_UPLOAD_TEX1;
580 }
581 }
582
583 /* need to verify
584 */
585 static void i810_dma_dispatch_clear(struct drm_device *dev, int flags,
586 unsigned int clear_color,
587 unsigned int clear_zval)
588 {
589 drm_i810_private_t *dev_priv = dev->dev_private;
590 drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
591 int nbox = sarea_priv->nbox;
592 struct drm_clip_rect *pbox = sarea_priv->boxes;
593 int pitch = dev_priv->pitch;
594 int cpp = 2;
595 int i;
596 RING_LOCALS;
597
598 if (dev_priv->current_page == 1) {
599 unsigned int tmp = flags;
600
601 flags &= ~(I810_FRONT | I810_BACK);
602 if (tmp & I810_FRONT)
603 flags |= I810_BACK;
604 if (tmp & I810_BACK)
605 flags |= I810_FRONT;
606 }
607
608 i810_kernel_lost_context(dev);
609
610 if (nbox > I810_NR_SAREA_CLIPRECTS)
611 nbox = I810_NR_SAREA_CLIPRECTS;
612
613 for (i = 0; i < nbox; i++, pbox++) {
614 unsigned int x = pbox->x1;
615 unsigned int y = pbox->y1;
616 unsigned int width = (pbox->x2 - x) * cpp;
617 unsigned int height = pbox->y2 - y;
618 unsigned int start = y * pitch + x * cpp;
619
620 if (pbox->x1 > pbox->x2 ||
621 pbox->y1 > pbox->y2 ||
622 pbox->x2 > dev_priv->w || pbox->y2 > dev_priv->h)
623 continue;
624
625 if (flags & I810_FRONT) {
626 BEGIN_LP_RING(6);
627 OUT_RING(BR00_BITBLT_CLIENT | BR00_OP_COLOR_BLT | 0x3);
628 OUT_RING(BR13_SOLID_PATTERN | (0xF0 << 16) | pitch);
629 OUT_RING((height << 16) | width);
630 OUT_RING(start);
631 OUT_RING(clear_color);
632 OUT_RING(0);
633 ADVANCE_LP_RING();
634 }
635
636 if (flags & I810_BACK) {
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(dev_priv->back_offset + start);
642 OUT_RING(clear_color);
643 OUT_RING(0);
644 ADVANCE_LP_RING();
645 }
646
647 if (flags & I810_DEPTH) {
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->depth_offset + start);
653 OUT_RING(clear_zval);
654 OUT_RING(0);
655 ADVANCE_LP_RING();
656 }
657 }
658 }
659
660 static void i810_dma_dispatch_swap(struct drm_device *dev)
661 {
662 drm_i810_private_t *dev_priv = dev->dev_private;
663 drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
664 int nbox = sarea_priv->nbox;
665 struct drm_clip_rect *pbox = sarea_priv->boxes;
666 int pitch = dev_priv->pitch;
667 int cpp = 2;
668 int i;
669 RING_LOCALS;
670
671 DRM_DEBUG("swapbuffers\n");
672
673 i810_kernel_lost_context(dev);
674
675 if (nbox > I810_NR_SAREA_CLIPRECTS)
676 nbox = I810_NR_SAREA_CLIPRECTS;
677
678 for (i = 0; i < nbox; i++, pbox++) {
679 unsigned int w = pbox->x2 - pbox->x1;
680 unsigned int h = pbox->y2 - pbox->y1;
681 unsigned int dst = pbox->x1 * cpp + pbox->y1 * pitch;
682 unsigned int start = dst;
683
684 if (pbox->x1 > pbox->x2 ||
685 pbox->y1 > pbox->y2 ||
686 pbox->x2 > dev_priv->w || pbox->y2 > dev_priv->h)
687 continue;
688
689 BEGIN_LP_RING(6);
690 OUT_RING(BR00_BITBLT_CLIENT | BR00_OP_SRC_COPY_BLT | 0x4);
691 OUT_RING(pitch | (0xCC << 16));
692 OUT_RING((h << 16) | (w * cpp));
693 if (dev_priv->current_page == 0)
694 OUT_RING(dev_priv->front_offset + start);
695 else
696 OUT_RING(dev_priv->back_offset + start);
697 OUT_RING(pitch);
698 if (dev_priv->current_page == 0)
699 OUT_RING(dev_priv->back_offset + start);
700 else
701 OUT_RING(dev_priv->front_offset + start);
702 ADVANCE_LP_RING();
703 }
704 }
705
706 static void i810_dma_dispatch_vertex(struct drm_device *dev,
707 struct drm_buf *buf, int discard, int used)
708 {
709 drm_i810_private_t *dev_priv = dev->dev_private;
710 drm_i810_buf_priv_t *buf_priv = buf->dev_private;
711 drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
712 struct drm_clip_rect *box = sarea_priv->boxes;
713 int nbox = sarea_priv->nbox;
714 unsigned long address = (unsigned long)buf->bus_address;
715 unsigned long start = address - dev->agp->base;
716 int i = 0;
717 RING_LOCALS;
718
719 i810_kernel_lost_context(dev);
720
721 if (nbox > I810_NR_SAREA_CLIPRECTS)
722 nbox = I810_NR_SAREA_CLIPRECTS;
723
724 if (used > 4 * 1024)
725 used = 0;
726
727 if (sarea_priv->dirty)
728 i810EmitState(dev);
729
730 if (buf_priv->currently_mapped == I810_BUF_MAPPED) {
731 unsigned int prim = (sarea_priv->vertex_prim & PR_MASK);
732
733 *(u32 *) buf_priv->kernel_virtual =
734 ((GFX_OP_PRIMITIVE | prim | ((used / 4) - 2)));
735
736 if (used & 4) {
737 *(u32 *) ((char *) buf_priv->kernel_virtual + used) = 0;
738 used += 4;
739 }
740
741 i810_unmap_buffer(buf);
742 }
743
744 if (used) {
745 do {
746 if (i < nbox) {
747 BEGIN_LP_RING(4);
748 OUT_RING(GFX_OP_SCISSOR | SC_UPDATE_SCISSOR |
749 SC_ENABLE);
750 OUT_RING(GFX_OP_SCISSOR_INFO);
751 OUT_RING(box[i].x1 | (box[i].y1 << 16));
752 OUT_RING((box[i].x2 -
753 1) | ((box[i].y2 - 1) << 16));
754 ADVANCE_LP_RING();
755 }
756
757 BEGIN_LP_RING(4);
758 OUT_RING(CMD_OP_BATCH_BUFFER);
759 OUT_RING(start | BB1_PROTECTED);
760 OUT_RING(start + used - 4);
761 OUT_RING(0);
762 ADVANCE_LP_RING();
763
764 } while (++i < nbox);
765 }
766
767 if (discard) {
768 dev_priv->counter++;
769
770 (void)cmpxchg(buf_priv->in_use, I810_BUF_CLIENT,
771 I810_BUF_HARDWARE);
772
773 BEGIN_LP_RING(8);
774 OUT_RING(CMD_STORE_DWORD_IDX);
775 OUT_RING(20);
776 OUT_RING(dev_priv->counter);
777 OUT_RING(CMD_STORE_DWORD_IDX);
778 OUT_RING(buf_priv->my_use_idx);
779 OUT_RING(I810_BUF_FREE);
780 OUT_RING(CMD_REPORT_HEAD);
781 OUT_RING(0);
782 ADVANCE_LP_RING();
783 }
784 }
785
786 static void i810_dma_dispatch_flip(struct drm_device *dev)
787 {
788 drm_i810_private_t *dev_priv = dev->dev_private;
789 int pitch = dev_priv->pitch;
790 RING_LOCALS;
791
792 DRM_DEBUG("page=%d pfCurrentPage=%d\n",
793 dev_priv->current_page,
794 dev_priv->sarea_priv->pf_current_page);
795
796 i810_kernel_lost_context(dev);
797
798 BEGIN_LP_RING(2);
799 OUT_RING(INST_PARSER_CLIENT | INST_OP_FLUSH | INST_FLUSH_MAP_CACHE);
800 OUT_RING(0);
801 ADVANCE_LP_RING();
802
803 BEGIN_LP_RING(I810_DEST_SETUP_SIZE + 2);
804 /* On i815 at least ASYNC is buggy */
805 /* pitch<<5 is from 11.2.8 p158,
806 its the pitch / 8 then left shifted 8,
807 so (pitch >> 3) << 8 */
808 OUT_RING(CMD_OP_FRONTBUFFER_INFO | (pitch << 5) /*| ASYNC_FLIP */ );
809 if (dev_priv->current_page == 0) {
810 OUT_RING(dev_priv->back_offset);
811 dev_priv->current_page = 1;
812 } else {
813 OUT_RING(dev_priv->front_offset);
814 dev_priv->current_page = 0;
815 }
816 OUT_RING(0);
817 ADVANCE_LP_RING();
818
819 BEGIN_LP_RING(2);
820 OUT_RING(CMD_OP_WAIT_FOR_EVENT | WAIT_FOR_PLANE_A_FLIP);
821 OUT_RING(0);
822 ADVANCE_LP_RING();
823
824 /* Increment the frame counter. The client-side 3D driver must
825 * throttle the framerate by waiting for this value before
826 * performing the swapbuffer ioctl.
827 */
828 dev_priv->sarea_priv->pf_current_page = dev_priv->current_page;
829
830 }
831
832 static void i810_dma_quiescent(struct drm_device *dev)
833 {
834 drm_i810_private_t *dev_priv = dev->dev_private;
835 RING_LOCALS;
836
837 i810_kernel_lost_context(dev);
838
839 BEGIN_LP_RING(4);
840 OUT_RING(INST_PARSER_CLIENT | INST_OP_FLUSH | INST_FLUSH_MAP_CACHE);
841 OUT_RING(CMD_REPORT_HEAD);
842 OUT_RING(0);
843 OUT_RING(0);
844 ADVANCE_LP_RING();
845
846 i810_wait_ring(dev, dev_priv->ring.Size - 8);
847 }
848
849 static int i810_flush_queue(struct drm_device *dev)
850 {
851 drm_i810_private_t *dev_priv = dev->dev_private;
852 struct drm_device_dma *dma = dev->dma;
853 int i, ret = 0;
854 RING_LOCALS;
855
856 i810_kernel_lost_context(dev);
857
858 BEGIN_LP_RING(2);
859 OUT_RING(CMD_REPORT_HEAD);
860 OUT_RING(0);
861 ADVANCE_LP_RING();
862
863 i810_wait_ring(dev, dev_priv->ring.Size - 8);
864
865 for (i = 0; i < dma->buf_count; i++) {
866 struct drm_buf *buf = dma->buflist[i];
867 drm_i810_buf_priv_t *buf_priv = buf->dev_private;
868
869 int used = cmpxchg(buf_priv->in_use, I810_BUF_HARDWARE,
870 I810_BUF_FREE);
871
872 if (used == I810_BUF_HARDWARE)
873 DRM_DEBUG("reclaimed from HARDWARE\n");
874 if (used == I810_BUF_CLIENT)
875 DRM_DEBUG("still on client\n");
876 }
877
878 return ret;
879 }
880
881 /* Must be called with the lock held */
882 void i810_driver_reclaim_buffers(struct drm_device *dev,
883 struct drm_file *file_priv)
884 {
885 struct drm_device_dma *dma = dev->dma;
886 int i;
887
888 if (!dma)
889 return;
890 if (!dev->dev_private)
891 return;
892 if (!dma->buflist)
893 return;
894
895 i810_flush_queue(dev);
896
897 for (i = 0; i < dma->buf_count; i++) {
898 struct drm_buf *buf = dma->buflist[i];
899 drm_i810_buf_priv_t *buf_priv = buf->dev_private;
900
901 if (buf->file_priv == file_priv && buf_priv) {
902 int used = cmpxchg(buf_priv->in_use, I810_BUF_CLIENT,
903 I810_BUF_FREE);
904
905 if (used == I810_BUF_CLIENT)
906 DRM_DEBUG("reclaimed from client\n");
907 if (buf_priv->currently_mapped == I810_BUF_MAPPED)
908 buf_priv->currently_mapped = I810_BUF_UNMAPPED;
909 }
910 }
911 }
912
913 static int i810_flush_ioctl(struct drm_device *dev, void *data,
914 struct drm_file *file_priv)
915 {
916 LOCK_TEST_WITH_RETURN(dev, file_priv);
917
918 i810_flush_queue(dev);
919 return 0;
920 }
921
922 static int i810_dma_vertex(struct drm_device *dev, void *data,
923 struct drm_file *file_priv)
924 {
925 struct drm_device_dma *dma = dev->dma;
926 drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
927 u32 *hw_status = dev_priv->hw_status_page;
928 drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
929 dev_priv->sarea_priv;
930 drm_i810_vertex_t *vertex = data;
931
932 LOCK_TEST_WITH_RETURN(dev, file_priv);
933
934 DRM_DEBUG("idx %d used %d discard %d\n",
935 vertex->idx, vertex->used, vertex->discard);
936
937 if (vertex->idx < 0 || vertex->idx > dma->buf_count)
938 return -EINVAL;
939
940 i810_dma_dispatch_vertex(dev,
941 dma->buflist[vertex->idx],
942 vertex->discard, vertex->used);
943
944 sarea_priv->last_enqueue = dev_priv->counter - 1;
945 sarea_priv->last_dispatch = (int)hw_status[5];
946
947 return 0;
948 }
949
950 static int i810_clear_bufs(struct drm_device *dev, void *data,
951 struct drm_file *file_priv)
952 {
953 drm_i810_clear_t *clear = data;
954
955 LOCK_TEST_WITH_RETURN(dev, file_priv);
956
957 /* GH: Someone's doing nasty things... */
958 if (!dev->dev_private)
959 return -EINVAL;
960
961 i810_dma_dispatch_clear(dev, clear->flags,
962 clear->clear_color, clear->clear_depth);
963 return 0;
964 }
965
966 static int i810_swap_bufs(struct drm_device *dev, void *data,
967 struct drm_file *file_priv)
968 {
969 DRM_DEBUG("\n");
970
971 LOCK_TEST_WITH_RETURN(dev, file_priv);
972
973 i810_dma_dispatch_swap(dev);
974 return 0;
975 }
976
977 static int i810_getage(struct drm_device *dev, void *data,
978 struct drm_file *file_priv)
979 {
980 drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
981 u32 *hw_status = dev_priv->hw_status_page;
982 drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
983 dev_priv->sarea_priv;
984
985 sarea_priv->last_dispatch = (int)hw_status[5];
986 return 0;
987 }
988
989 static int i810_getbuf(struct drm_device *dev, void *data,
990 struct drm_file *file_priv)
991 {
992 int retcode = 0;
993 drm_i810_dma_t *d = data;
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 LOCK_TEST_WITH_RETURN(dev, file_priv);
1000
1001 d->granted = 0;
1002
1003 retcode = i810_dma_get_buffer(dev, d, file_priv);
1004
1005 DRM_DEBUG("i810_dma: %d returning %d, granted = %d\n",
1006 task_pid_nr(current), retcode, d->granted);
1007
1008 sarea_priv->last_dispatch = (int)hw_status[5];
1009
1010 return retcode;
1011 }
1012
1013 static int i810_copybuf(struct drm_device *dev, void *data,
1014 struct drm_file *file_priv)
1015 {
1016 /* Never copy - 2.4.x doesn't need it */
1017 return 0;
1018 }
1019
1020 static int i810_docopy(struct drm_device *dev, void *data,
1021 struct drm_file *file_priv)
1022 {
1023 /* Never copy - 2.4.x doesn't need it */
1024 return 0;
1025 }
1026
1027 static void i810_dma_dispatch_mc(struct drm_device *dev, struct drm_buf *buf, int used,
1028 unsigned int last_render)
1029 {
1030 drm_i810_private_t *dev_priv = dev->dev_private;
1031 drm_i810_buf_priv_t *buf_priv = buf->dev_private;
1032 drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
1033 unsigned long address = (unsigned long)buf->bus_address;
1034 unsigned long start = address - dev->agp->base;
1035 int u;
1036 RING_LOCALS;
1037
1038 i810_kernel_lost_context(dev);
1039
1040 u = cmpxchg(buf_priv->in_use, I810_BUF_CLIENT, I810_BUF_HARDWARE);
1041 if (u != I810_BUF_CLIENT)
1042 DRM_DEBUG("MC found buffer that isn't mine!\n");
1043
1044 if (used > 4 * 1024)
1045 used = 0;
1046
1047 sarea_priv->dirty = 0x7f;
1048
1049 DRM_DEBUG("addr 0x%lx, used 0x%x\n", address, used);
1050
1051 dev_priv->counter++;
1052 DRM_DEBUG("dispatch counter : %ld\n", dev_priv->counter);
1053 DRM_DEBUG("start : %lx\n", start);
1054 DRM_DEBUG("used : %d\n", used);
1055 DRM_DEBUG("start + used - 4 : %ld\n", start + used - 4);
1056
1057 if (buf_priv->currently_mapped == I810_BUF_MAPPED) {
1058 if (used & 4) {
1059 *(u32 *) ((char *) buf_priv->virtual + used) = 0;
1060 used += 4;
1061 }
1062
1063 i810_unmap_buffer(buf);
1064 }
1065 BEGIN_LP_RING(4);
1066 OUT_RING(CMD_OP_BATCH_BUFFER);
1067 OUT_RING(start | BB1_PROTECTED);
1068 OUT_RING(start + used - 4);
1069 OUT_RING(0);
1070 ADVANCE_LP_RING();
1071
1072 BEGIN_LP_RING(8);
1073 OUT_RING(CMD_STORE_DWORD_IDX);
1074 OUT_RING(buf_priv->my_use_idx);
1075 OUT_RING(I810_BUF_FREE);
1076 OUT_RING(0);
1077
1078 OUT_RING(CMD_STORE_DWORD_IDX);
1079 OUT_RING(16);
1080 OUT_RING(last_render);
1081 OUT_RING(0);
1082 ADVANCE_LP_RING();
1083 }
1084
1085 static int i810_dma_mc(struct drm_device *dev, void *data,
1086 struct drm_file *file_priv)
1087 {
1088 struct drm_device_dma *dma = dev->dma;
1089 drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1090 u32 *hw_status = dev_priv->hw_status_page;
1091 drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
1092 dev_priv->sarea_priv;
1093 drm_i810_mc_t *mc = data;
1094
1095 LOCK_TEST_WITH_RETURN(dev, file_priv);
1096
1097 if (mc->idx >= dma->buf_count || mc->idx < 0)
1098 return -EINVAL;
1099
1100 i810_dma_dispatch_mc(dev, dma->buflist[mc->idx], mc->used,
1101 mc->last_render);
1102
1103 sarea_priv->last_enqueue = dev_priv->counter - 1;
1104 sarea_priv->last_dispatch = (int)hw_status[5];
1105
1106 return 0;
1107 }
1108
1109 static int i810_rstatus(struct drm_device *dev, void *data,
1110 struct drm_file *file_priv)
1111 {
1112 drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1113
1114 return (int)(((u32 *) (dev_priv->hw_status_page))[4]);
1115 }
1116
1117 static int i810_ov0_info(struct drm_device *dev, void *data,
1118 struct drm_file *file_priv)
1119 {
1120 drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1121 drm_i810_overlay_t *ov = data;
1122
1123 ov->offset = dev_priv->overlay_offset;
1124 ov->physical = dev_priv->overlay_physical;
1125
1126 return 0;
1127 }
1128
1129 static int i810_fstatus(struct drm_device *dev, void *data,
1130 struct drm_file *file_priv)
1131 {
1132 drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1133
1134 LOCK_TEST_WITH_RETURN(dev, file_priv);
1135 return I810_READ(0x30008);
1136 }
1137
1138 static int i810_ov0_flip(struct drm_device *dev, void *data,
1139 struct drm_file *file_priv)
1140 {
1141 drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1142
1143 LOCK_TEST_WITH_RETURN(dev, file_priv);
1144
1145 /* Tell the overlay to update */
1146 I810_WRITE(0x30000, dev_priv->overlay_physical | 0x80000000);
1147
1148 return 0;
1149 }
1150
1151 /* Not sure why this isn't set all the time:
1152 */
1153 static void i810_do_init_pageflip(struct drm_device *dev)
1154 {
1155 drm_i810_private_t *dev_priv = dev->dev_private;
1156
1157 DRM_DEBUG("\n");
1158 dev_priv->page_flipping = 1;
1159 dev_priv->current_page = 0;
1160 dev_priv->sarea_priv->pf_current_page = dev_priv->current_page;
1161 }
1162
1163 static int i810_do_cleanup_pageflip(struct drm_device *dev)
1164 {
1165 drm_i810_private_t *dev_priv = dev->dev_private;
1166
1167 DRM_DEBUG("\n");
1168 if (dev_priv->current_page != 0)
1169 i810_dma_dispatch_flip(dev);
1170
1171 dev_priv->page_flipping = 0;
1172 return 0;
1173 }
1174
1175 static int i810_flip_bufs(struct drm_device *dev, void *data,
1176 struct drm_file *file_priv)
1177 {
1178 drm_i810_private_t *dev_priv = dev->dev_private;
1179
1180 DRM_DEBUG("\n");
1181
1182 LOCK_TEST_WITH_RETURN(dev, file_priv);
1183
1184 if (!dev_priv->page_flipping)
1185 i810_do_init_pageflip(dev);
1186
1187 i810_dma_dispatch_flip(dev);
1188 return 0;
1189 }
1190
1191 int i810_driver_load(struct drm_device *dev, unsigned long flags)
1192 {
1193 dev->agp = drm_agp_init(dev);
1194 if (dev->agp) {
1195 dev->agp->agp_mtrr = arch_phys_wc_add(
1196 dev->agp->agp_info.aper_base,
1197 dev->agp->agp_info.aper_size *
1198 1024 * 1024);
1199 }
1200
1201 /* Our userspace depends upon the agp mapping support. */
1202 if (!dev->agp)
1203 return -EINVAL;
1204
1205 pci_set_master(dev->pdev);
1206
1207 return 0;
1208 }
1209
1210 void i810_driver_lastclose(struct drm_device *dev)
1211 {
1212 i810_dma_cleanup(dev);
1213 }
1214
1215 void i810_driver_preclose(struct drm_device *dev, struct drm_file *file_priv)
1216 {
1217 if (dev->dev_private) {
1218 drm_i810_private_t *dev_priv = dev->dev_private;
1219 if (dev_priv->page_flipping)
1220 i810_do_cleanup_pageflip(dev);
1221 }
1222
1223 if (file_priv->master && file_priv->master->lock.hw_lock) {
1224 drm_legacy_idlelock_take(&file_priv->master->lock);
1225 i810_driver_reclaim_buffers(dev, file_priv);
1226 drm_legacy_idlelock_release(&file_priv->master->lock);
1227 } else {
1228 /* master disappeared, clean up stuff anyway and hope nothing
1229 * goes wrong */
1230 i810_driver_reclaim_buffers(dev, file_priv);
1231 }
1232
1233 }
1234
1235 int i810_driver_dma_quiescent(struct drm_device *dev)
1236 {
1237 i810_dma_quiescent(dev);
1238 return 0;
1239 }
1240
1241 const struct drm_ioctl_desc i810_ioctls[] = {
1242 DRM_IOCTL_DEF_DRV(I810_INIT, i810_dma_init, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY|DRM_UNLOCKED),
1243 DRM_IOCTL_DEF_DRV(I810_VERTEX, i810_dma_vertex, DRM_AUTH|DRM_UNLOCKED),
1244 DRM_IOCTL_DEF_DRV(I810_CLEAR, i810_clear_bufs, DRM_AUTH|DRM_UNLOCKED),
1245 DRM_IOCTL_DEF_DRV(I810_FLUSH, i810_flush_ioctl, DRM_AUTH|DRM_UNLOCKED),
1246 DRM_IOCTL_DEF_DRV(I810_GETAGE, i810_getage, DRM_AUTH|DRM_UNLOCKED),
1247 DRM_IOCTL_DEF_DRV(I810_GETBUF, i810_getbuf, DRM_AUTH|DRM_UNLOCKED),
1248 DRM_IOCTL_DEF_DRV(I810_SWAP, i810_swap_bufs, DRM_AUTH|DRM_UNLOCKED),
1249 DRM_IOCTL_DEF_DRV(I810_COPY, i810_copybuf, DRM_AUTH|DRM_UNLOCKED),
1250 DRM_IOCTL_DEF_DRV(I810_DOCOPY, i810_docopy, DRM_AUTH|DRM_UNLOCKED),
1251 DRM_IOCTL_DEF_DRV(I810_OV0INFO, i810_ov0_info, DRM_AUTH|DRM_UNLOCKED),
1252 DRM_IOCTL_DEF_DRV(I810_FSTATUS, i810_fstatus, DRM_AUTH|DRM_UNLOCKED),
1253 DRM_IOCTL_DEF_DRV(I810_OV0FLIP, i810_ov0_flip, DRM_AUTH|DRM_UNLOCKED),
1254 DRM_IOCTL_DEF_DRV(I810_MC, i810_dma_mc, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY|DRM_UNLOCKED),
1255 DRM_IOCTL_DEF_DRV(I810_RSTATUS, i810_rstatus, DRM_AUTH|DRM_UNLOCKED),
1256 DRM_IOCTL_DEF_DRV(I810_FLIP, i810_flip_bufs, DRM_AUTH|DRM_UNLOCKED),
1257 };
1258
1259 int i810_max_ioctl = ARRAY_SIZE(i810_ioctls);
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