1 /* $NetBSD: i810_dma.c,v 1.3 2021/12/18 23:45:27 riastradh Exp $ */
2
3 /* i810_dma.c -- DMA support for the i810 -*- linux-c -*-
4 * Created: Mon Dec 13 01:50:01 1999 by jhartmann@precisioninsight.com
5 *
6 * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
7 * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
8 * All Rights Reserved.
9 *
10 * Permission is hereby granted, free of charge, to any person obtaining a
11 * copy of this software and associated documentation files (the "Software"),
12 * to deal in the Software without restriction, including without limitation
13 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
14 * and/or sell copies of the Software, and to permit persons to whom the
15 * Software is furnished to do so, subject to the following conditions:
16 *
17 * The above copyright notice and this permission notice (including the next
18 * paragraph) shall be included in all copies or substantial portions of the
19 * Software.
20 *
21 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
22 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
23 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
24 * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
25 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
26 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
27 * DEALINGS IN THE SOFTWARE.
28 *
29 * Authors: Rickard E. (Rik) Faith <faith@valinux.com>
30 * Jeff Hartmann <jhartmann@valinux.com>
31 * Keith Whitwell <keith@tungstengraphics.com>
32 *
33 */
34
35 #include <sys/cdefs.h>
36 __KERNEL_RCSID(0, "$NetBSD: i810_dma.c,v 1.3 2021/12/18 23:45:27 riastradh Exp $");
37
38 #include <linux/delay.h>
39 #include <linux/mman.h>
40 #include <linux/pci.h>
41
42 #include <drm/drm_agpsupport.h>
43 #include <drm/drm_device.h>
44 #include <drm/drm_drv.h>
45 #include <drm/drm_file.h>
46 #include <drm/drm_ioctl.h>
47 #include <drm/drm_irq.h>
48 #include <drm/drm_print.h>
49 #include <drm/i810_drm.h>
50
51 #include "i810_drv.h"
52
53 #define I810_BUF_FREE 2
54 #define I810_BUF_CLIENT 1
55 #define I810_BUF_HARDWARE 0
56
57 #define I810_BUF_UNMAPPED 0
58 #define I810_BUF_MAPPED 1
59
i810_freelist_get(struct drm_device * dev)60 static struct drm_buf *i810_freelist_get(struct drm_device * dev)
61 {
62 struct drm_device_dma *dma = dev->dma;
63 int i;
64 int used;
65
66 /* Linear search might not be the best solution */
67
68 for (i = 0; i < dma->buf_count; i++) {
69 struct drm_buf *buf = dma->buflist[i];
70 drm_i810_buf_priv_t *buf_priv = buf->dev_private;
71 /* In use is already a pointer */
72 used = cmpxchg(buf_priv->in_use, I810_BUF_FREE,
73 I810_BUF_CLIENT);
74 if (used == I810_BUF_FREE)
75 return buf;
76 }
77 return NULL;
78 }
79
80 /* This should only be called if the buffer is not sent to the hardware
81 * yet, the hardware updates in use for us once its on the ring buffer.
82 */
83
i810_freelist_put(struct drm_device * dev,struct drm_buf * buf)84 static int i810_freelist_put(struct drm_device *dev, struct drm_buf *buf)
85 {
86 drm_i810_buf_priv_t *buf_priv = buf->dev_private;
87 int used;
88
89 /* In use is already a pointer */
90 used = cmpxchg(buf_priv->in_use, I810_BUF_CLIENT, I810_BUF_FREE);
91 if (used != I810_BUF_CLIENT) {
92 DRM_ERROR("Freeing buffer thats not in use : %d\n", buf->idx);
93 return -EINVAL;
94 }
95
96 return 0;
97 }
98
i810_mmap_buffers(struct file * filp,struct vm_area_struct * vma)99 static int i810_mmap_buffers(struct file *filp, struct vm_area_struct *vma)
100 {
101 struct drm_file *priv = filp->private_data;
102 struct drm_device *dev;
103 drm_i810_private_t *dev_priv;
104 struct drm_buf *buf;
105 drm_i810_buf_priv_t *buf_priv;
106
107 dev = priv->minor->dev;
108 dev_priv = dev->dev_private;
109 buf = dev_priv->mmap_buffer;
110 buf_priv = buf->dev_private;
111
112 vma->vm_flags |= VM_DONTCOPY;
113
114 buf_priv->currently_mapped = I810_BUF_MAPPED;
115
116 if (io_remap_pfn_range(vma, vma->vm_start,
117 vma->vm_pgoff,
118 vma->vm_end - vma->vm_start, vma->vm_page_prot))
119 return -EAGAIN;
120 return 0;
121 }
122
123 static const struct file_operations i810_buffer_fops = {
124 .open = drm_open,
125 .release = drm_release,
126 .unlocked_ioctl = drm_ioctl,
127 .mmap = i810_mmap_buffers,
128 .compat_ioctl = drm_compat_ioctl,
129 .llseek = noop_llseek,
130 };
131
i810_map_buffer(struct drm_buf * buf,struct drm_file * file_priv)132 static int i810_map_buffer(struct drm_buf *buf, struct drm_file *file_priv)
133 {
134 struct drm_device *dev = file_priv->minor->dev;
135 drm_i810_buf_priv_t *buf_priv = buf->dev_private;
136 drm_i810_private_t *dev_priv = dev->dev_private;
137 const struct file_operations *old_fops;
138 int retcode = 0;
139
140 if (buf_priv->currently_mapped == I810_BUF_MAPPED)
141 return -EINVAL;
142
143 /* This is all entirely broken */
144 old_fops = file_priv->filp->f_op;
145 file_priv->filp->f_op = &i810_buffer_fops;
146 dev_priv->mmap_buffer = buf;
147 buf_priv->virtual = (void *)vm_mmap(file_priv->filp, 0, buf->total,
148 PROT_READ | PROT_WRITE,
149 MAP_SHARED, buf->bus_address);
150 dev_priv->mmap_buffer = NULL;
151 file_priv->filp->f_op = old_fops;
152 if (IS_ERR(buf_priv->virtual)) {
153 /* Real error */
154 DRM_ERROR("mmap error\n");
155 retcode = PTR_ERR(buf_priv->virtual);
156 buf_priv->virtual = NULL;
157 }
158
159 return retcode;
160 }
161
i810_unmap_buffer(struct drm_buf * buf)162 static int i810_unmap_buffer(struct drm_buf *buf)
163 {
164 drm_i810_buf_priv_t *buf_priv = buf->dev_private;
165 int retcode = 0;
166
167 if (buf_priv->currently_mapped != I810_BUF_MAPPED)
168 return -EINVAL;
169
170 retcode = vm_munmap((unsigned long)buf_priv->virtual,
171 (size_t) buf->total);
172
173 buf_priv->currently_mapped = I810_BUF_UNMAPPED;
174 buf_priv->virtual = NULL;
175
176 return retcode;
177 }
178
i810_dma_get_buffer(struct drm_device * dev,drm_i810_dma_t * d,struct drm_file * file_priv)179 static int i810_dma_get_buffer(struct drm_device *dev, drm_i810_dma_t *d,
180 struct drm_file *file_priv)
181 {
182 struct drm_buf *buf;
183 drm_i810_buf_priv_t *buf_priv;
184 int retcode = 0;
185
186 buf = i810_freelist_get(dev);
187 if (!buf) {
188 retcode = -ENOMEM;
189 DRM_DEBUG("retcode=%d\n", retcode);
190 return retcode;
191 }
192
193 retcode = i810_map_buffer(buf, file_priv);
194 if (retcode) {
195 i810_freelist_put(dev, buf);
196 DRM_ERROR("mapbuf failed, retcode %d\n", retcode);
197 return retcode;
198 }
199 buf->file_priv = file_priv;
200 buf_priv = buf->dev_private;
201 d->granted = 1;
202 d->request_idx = buf->idx;
203 d->request_size = buf->total;
204 d->virtual = buf_priv->virtual;
205
206 return retcode;
207 }
208
i810_dma_cleanup(struct drm_device * dev)209 static int i810_dma_cleanup(struct drm_device *dev)
210 {
211 struct drm_device_dma *dma = dev->dma;
212
213 /* Make sure interrupts are disabled here because the uninstall ioctl
214 * may not have been called from userspace and after dev_private
215 * is freed, it's too late.
216 */
217 if (drm_core_check_feature(dev, DRIVER_HAVE_IRQ) && dev->irq_enabled)
218 drm_irq_uninstall(dev);
219
220 if (dev->dev_private) {
221 int i;
222 drm_i810_private_t *dev_priv =
223 (drm_i810_private_t *) dev->dev_private;
224
225 if (dev_priv->ring.virtual_start)
226 drm_legacy_ioremapfree(&dev_priv->ring.map, dev);
227 if (dev_priv->hw_status_page) {
228 pci_free_consistent(dev->pdev, PAGE_SIZE,
229 dev_priv->hw_status_page,
230 dev_priv->dma_status_page);
231 }
232 kfree(dev->dev_private);
233 dev->dev_private = NULL;
234
235 for (i = 0; i < dma->buf_count; i++) {
236 struct drm_buf *buf = dma->buflist[i];
237 drm_i810_buf_priv_t *buf_priv = buf->dev_private;
238
239 if (buf_priv->kernel_virtual && buf->total)
240 drm_legacy_ioremapfree(&buf_priv->map, dev);
241 }
242 }
243 return 0;
244 }
245
i810_wait_ring(struct drm_device * dev,int n)246 static int i810_wait_ring(struct drm_device *dev, int n)
247 {
248 drm_i810_private_t *dev_priv = dev->dev_private;
249 drm_i810_ring_buffer_t *ring = &(dev_priv->ring);
250 int iters = 0;
251 unsigned long end;
252 unsigned int last_head = I810_READ(LP_RING + RING_HEAD) & HEAD_ADDR;
253
254 end = jiffies + (HZ * 3);
255 while (ring->space < n) {
256 ring->head = I810_READ(LP_RING + RING_HEAD) & HEAD_ADDR;
257 ring->space = ring->head - (ring->tail + 8);
258 if (ring->space < 0)
259 ring->space += ring->Size;
260
261 if (ring->head != last_head) {
262 end = jiffies + (HZ * 3);
263 last_head = ring->head;
264 }
265
266 iters++;
267 if (time_before(end, jiffies)) {
268 DRM_ERROR("space: %d wanted %d\n", ring->space, n);
269 DRM_ERROR("lockup\n");
270 goto out_wait_ring;
271 }
272 udelay(1);
273 }
274
275 out_wait_ring:
276 return iters;
277 }
278
i810_kernel_lost_context(struct drm_device * dev)279 static void i810_kernel_lost_context(struct drm_device *dev)
280 {
281 drm_i810_private_t *dev_priv = dev->dev_private;
282 drm_i810_ring_buffer_t *ring = &(dev_priv->ring);
283
284 ring->head = I810_READ(LP_RING + RING_HEAD) & HEAD_ADDR;
285 ring->tail = I810_READ(LP_RING + RING_TAIL);
286 ring->space = ring->head - (ring->tail + 8);
287 if (ring->space < 0)
288 ring->space += ring->Size;
289 }
290
i810_freelist_init(struct drm_device * dev,drm_i810_private_t * dev_priv)291 static int i810_freelist_init(struct drm_device *dev, drm_i810_private_t *dev_priv)
292 {
293 struct drm_device_dma *dma = dev->dma;
294 int my_idx = 24;
295 u32 *hw_status = (u32 *) (dev_priv->hw_status_page + my_idx);
296 int i;
297
298 if (dma->buf_count > 1019) {
299 /* Not enough space in the status page for the freelist */
300 return -EINVAL;
301 }
302
303 for (i = 0; i < dma->buf_count; i++) {
304 struct drm_buf *buf = dma->buflist[i];
305 drm_i810_buf_priv_t *buf_priv = buf->dev_private;
306
307 buf_priv->in_use = hw_status++;
308 buf_priv->my_use_idx = my_idx;
309 my_idx += 4;
310
311 *buf_priv->in_use = I810_BUF_FREE;
312
313 buf_priv->map.offset = buf->bus_address;
314 buf_priv->map.size = buf->total;
315 buf_priv->map.type = _DRM_AGP;
316 buf_priv->map.flags = 0;
317 buf_priv->map.mtrr = 0;
318
319 drm_legacy_ioremap(&buf_priv->map, dev);
320 buf_priv->kernel_virtual = buf_priv->map.handle;
321
322 }
323 return 0;
324 }
325
i810_dma_initialize(struct drm_device * dev,drm_i810_private_t * dev_priv,drm_i810_init_t * init)326 static int i810_dma_initialize(struct drm_device *dev,
327 drm_i810_private_t *dev_priv,
328 drm_i810_init_t *init)
329 {
330 struct drm_map_list *r_list;
331 memset(dev_priv, 0, sizeof(drm_i810_private_t));
332
333 list_for_each_entry(r_list, &dev->maplist, head) {
334 if (r_list->map &&
335 r_list->map->type == _DRM_SHM &&
336 r_list->map->flags & _DRM_CONTAINS_LOCK) {
337 dev_priv->sarea_map = r_list->map;
338 break;
339 }
340 }
341 if (!dev_priv->sarea_map) {
342 dev->dev_private = (void *)dev_priv;
343 i810_dma_cleanup(dev);
344 DRM_ERROR("can not find sarea!\n");
345 return -EINVAL;
346 }
347 dev_priv->mmio_map = drm_legacy_findmap(dev, init->mmio_offset);
348 if (!dev_priv->mmio_map) {
349 dev->dev_private = (void *)dev_priv;
350 i810_dma_cleanup(dev);
351 DRM_ERROR("can not find mmio map!\n");
352 return -EINVAL;
353 }
354 dev->agp_buffer_token = init->buffers_offset;
355 dev->agp_buffer_map = drm_legacy_findmap(dev, init->buffers_offset);
356 if (!dev->agp_buffer_map) {
357 dev->dev_private = (void *)dev_priv;
358 i810_dma_cleanup(dev);
359 DRM_ERROR("can not find dma buffer map!\n");
360 return -EINVAL;
361 }
362
363 dev_priv->sarea_priv = (drm_i810_sarea_t *)
364 ((u8 *) dev_priv->sarea_map->handle + init->sarea_priv_offset);
365
366 dev_priv->ring.Start = init->ring_start;
367 dev_priv->ring.End = init->ring_end;
368 dev_priv->ring.Size = init->ring_size;
369
370 dev_priv->ring.map.offset = dev->agp->base + init->ring_start;
371 dev_priv->ring.map.size = init->ring_size;
372 dev_priv->ring.map.type = _DRM_AGP;
373 dev_priv->ring.map.flags = 0;
374 dev_priv->ring.map.mtrr = 0;
375
376 drm_legacy_ioremap(&dev_priv->ring.map, dev);
377
378 if (dev_priv->ring.map.handle == NULL) {
379 dev->dev_private = (void *)dev_priv;
380 i810_dma_cleanup(dev);
381 DRM_ERROR("can not ioremap virtual address for"
382 " ring buffer\n");
383 return -ENOMEM;
384 }
385
386 dev_priv->ring.virtual_start = dev_priv->ring.map.handle;
387
388 dev_priv->ring.tail_mask = dev_priv->ring.Size - 1;
389
390 dev_priv->w = init->w;
391 dev_priv->h = init->h;
392 dev_priv->pitch = init->pitch;
393 dev_priv->back_offset = init->back_offset;
394 dev_priv->depth_offset = init->depth_offset;
395 dev_priv->front_offset = init->front_offset;
396
397 dev_priv->overlay_offset = init->overlay_offset;
398 dev_priv->overlay_physical = init->overlay_physical;
399
400 dev_priv->front_di1 = init->front_offset | init->pitch_bits;
401 dev_priv->back_di1 = init->back_offset | init->pitch_bits;
402 dev_priv->zi1 = init->depth_offset | init->pitch_bits;
403
404 /* Program Hardware Status Page */
405 dev_priv->hw_status_page =
406 pci_zalloc_consistent(dev->pdev, PAGE_SIZE,
407 &dev_priv->dma_status_page);
408 if (!dev_priv->hw_status_page) {
409 dev->dev_private = (void *)dev_priv;
410 i810_dma_cleanup(dev);
411 DRM_ERROR("Can not allocate hardware status page\n");
412 return -ENOMEM;
413 }
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
i810_dma_init(struct drm_device * dev,void * data,struct drm_file * file_priv)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 */
i810EmitContextVerified(struct drm_device * dev,volatile unsigned int * code)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
i810EmitTexVerified(struct drm_device * dev,volatile unsigned int * code)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 */
i810EmitDestVerified(struct drm_device * dev,volatile unsigned int * code)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
i810EmitState(struct drm_device * dev)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 */
i810_dma_dispatch_clear(struct drm_device * dev,int flags,unsigned int clear_color,unsigned int clear_zval)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
i810_dma_dispatch_swap(struct drm_device * dev)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
i810_dma_dispatch_vertex(struct drm_device * dev,struct drm_buf * buf,int discard,int used)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 < 0 || 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
i810_dma_dispatch_flip(struct drm_device * dev)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
i810_dma_quiescent(struct drm_device * dev)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
i810_flush_queue(struct drm_device * dev)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 */
i810_driver_reclaim_buffers(struct drm_device * dev,struct drm_file * file_priv)894 void i810_driver_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
i810_flush_ioctl(struct drm_device * dev,void * data,struct drm_file * file_priv)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
i810_dma_vertex(struct drm_device * dev,void * data,struct drm_file * file_priv)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 sarea_priv->last_enqueue = dev_priv->counter - 1;
957 sarea_priv->last_dispatch = (int)hw_status[5];
958
959 return 0;
960 }
961
i810_clear_bufs(struct drm_device * dev,void * data,struct drm_file * file_priv)962 static int i810_clear_bufs(struct drm_device *dev, void *data,
963 struct drm_file *file_priv)
964 {
965 drm_i810_clear_t *clear = data;
966
967 LOCK_TEST_WITH_RETURN(dev, file_priv);
968
969 /* GH: Someone's doing nasty things... */
970 if (!dev->dev_private)
971 return -EINVAL;
972
973 i810_dma_dispatch_clear(dev, clear->flags,
974 clear->clear_color, clear->clear_depth);
975 return 0;
976 }
977
i810_swap_bufs(struct drm_device * dev,void * data,struct drm_file * file_priv)978 static int i810_swap_bufs(struct drm_device *dev, void *data,
979 struct drm_file *file_priv)
980 {
981 DRM_DEBUG("\n");
982
983 LOCK_TEST_WITH_RETURN(dev, file_priv);
984
985 i810_dma_dispatch_swap(dev);
986 return 0;
987 }
988
i810_getage(struct drm_device * dev,void * data,struct drm_file * file_priv)989 static int i810_getage(struct drm_device *dev, void *data,
990 struct drm_file *file_priv)
991 {
992 drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
993 u32 *hw_status = dev_priv->hw_status_page;
994 drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
995 dev_priv->sarea_priv;
996
997 sarea_priv->last_dispatch = (int)hw_status[5];
998 return 0;
999 }
1000
i810_getbuf(struct drm_device * dev,void * data,struct drm_file * file_priv)1001 static int i810_getbuf(struct drm_device *dev, void *data,
1002 struct drm_file *file_priv)
1003 {
1004 int retcode = 0;
1005 drm_i810_dma_t *d = data;
1006 drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1007 u32 *hw_status = dev_priv->hw_status_page;
1008 drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
1009 dev_priv->sarea_priv;
1010
1011 LOCK_TEST_WITH_RETURN(dev, file_priv);
1012
1013 d->granted = 0;
1014
1015 retcode = i810_dma_get_buffer(dev, d, file_priv);
1016
1017 DRM_DEBUG("i810_dma: %d returning %d, granted = %d\n",
1018 task_pid_nr(current), retcode, d->granted);
1019
1020 sarea_priv->last_dispatch = (int)hw_status[5];
1021
1022 return retcode;
1023 }
1024
i810_copybuf(struct drm_device * dev,void * data,struct drm_file * file_priv)1025 static int i810_copybuf(struct drm_device *dev, void *data,
1026 struct drm_file *file_priv)
1027 {
1028 /* Never copy - 2.4.x doesn't need it */
1029 return 0;
1030 }
1031
i810_docopy(struct drm_device * dev,void * data,struct drm_file * file_priv)1032 static int i810_docopy(struct drm_device *dev, void *data,
1033 struct drm_file *file_priv)
1034 {
1035 /* Never copy - 2.4.x doesn't need it */
1036 return 0;
1037 }
1038
i810_dma_dispatch_mc(struct drm_device * dev,struct drm_buf * buf,int used,unsigned int last_render)1039 static void i810_dma_dispatch_mc(struct drm_device *dev, struct drm_buf *buf, int used,
1040 unsigned int last_render)
1041 {
1042 drm_i810_private_t *dev_priv = dev->dev_private;
1043 drm_i810_buf_priv_t *buf_priv = buf->dev_private;
1044 drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
1045 unsigned long address = (unsigned long)buf->bus_address;
1046 unsigned long start = address - dev->agp->base;
1047 int u;
1048 RING_LOCALS;
1049
1050 i810_kernel_lost_context(dev);
1051
1052 u = cmpxchg(buf_priv->in_use, I810_BUF_CLIENT, I810_BUF_HARDWARE);
1053 if (u != I810_BUF_CLIENT)
1054 DRM_DEBUG("MC found buffer that isn't mine!\n");
1055
1056 if (used < 0 || used > 4 * 1024)
1057 used = 0;
1058
1059 sarea_priv->dirty = 0x7f;
1060
1061 DRM_DEBUG("addr 0x%lx, used 0x%x\n", address, used);
1062
1063 dev_priv->counter++;
1064 DRM_DEBUG("dispatch counter : %ld\n", dev_priv->counter);
1065 DRM_DEBUG("start : %lx\n", start);
1066 DRM_DEBUG("used : %d\n", used);
1067 DRM_DEBUG("start + used - 4 : %ld\n", start + used - 4);
1068
1069 if (buf_priv->currently_mapped == I810_BUF_MAPPED) {
1070 if (used & 4) {
1071 *(u32 *) ((char *) buf_priv->virtual + used) = 0;
1072 used += 4;
1073 }
1074
1075 i810_unmap_buffer(buf);
1076 }
1077 BEGIN_LP_RING(4);
1078 OUT_RING(CMD_OP_BATCH_BUFFER);
1079 OUT_RING(start | BB1_PROTECTED);
1080 OUT_RING(start + used - 4);
1081 OUT_RING(0);
1082 ADVANCE_LP_RING();
1083
1084 BEGIN_LP_RING(8);
1085 OUT_RING(CMD_STORE_DWORD_IDX);
1086 OUT_RING(buf_priv->my_use_idx);
1087 OUT_RING(I810_BUF_FREE);
1088 OUT_RING(0);
1089
1090 OUT_RING(CMD_STORE_DWORD_IDX);
1091 OUT_RING(16);
1092 OUT_RING(last_render);
1093 OUT_RING(0);
1094 ADVANCE_LP_RING();
1095 }
1096
i810_dma_mc(struct drm_device * dev,void * data,struct drm_file * file_priv)1097 static int i810_dma_mc(struct drm_device *dev, void *data,
1098 struct drm_file *file_priv)
1099 {
1100 struct drm_device_dma *dma = dev->dma;
1101 drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1102 u32 *hw_status = dev_priv->hw_status_page;
1103 drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
1104 dev_priv->sarea_priv;
1105 drm_i810_mc_t *mc = data;
1106
1107 LOCK_TEST_WITH_RETURN(dev, file_priv);
1108
1109 if (mc->idx >= dma->buf_count || mc->idx < 0)
1110 return -EINVAL;
1111
1112 i810_dma_dispatch_mc(dev, dma->buflist[mc->idx], mc->used,
1113 mc->last_render);
1114
1115 sarea_priv->last_enqueue = dev_priv->counter - 1;
1116 sarea_priv->last_dispatch = (int)hw_status[5];
1117
1118 return 0;
1119 }
1120
i810_rstatus(struct drm_device * dev,void * data,struct drm_file * file_priv)1121 static int i810_rstatus(struct drm_device *dev, void *data,
1122 struct drm_file *file_priv)
1123 {
1124 drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1125
1126 return (int)(((u32 *) (dev_priv->hw_status_page))[4]);
1127 }
1128
i810_ov0_info(struct drm_device * dev,void * data,struct drm_file * file_priv)1129 static int i810_ov0_info(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 drm_i810_overlay_t *ov = data;
1134
1135 ov->offset = dev_priv->overlay_offset;
1136 ov->physical = dev_priv->overlay_physical;
1137
1138 return 0;
1139 }
1140
i810_fstatus(struct drm_device * dev,void * data,struct drm_file * file_priv)1141 static int i810_fstatus(struct drm_device *dev, void *data,
1142 struct drm_file *file_priv)
1143 {
1144 drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1145
1146 LOCK_TEST_WITH_RETURN(dev, file_priv);
1147 return I810_READ(0x30008);
1148 }
1149
i810_ov0_flip(struct drm_device * dev,void * data,struct drm_file * file_priv)1150 static int i810_ov0_flip(struct drm_device *dev, void *data,
1151 struct drm_file *file_priv)
1152 {
1153 drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1154
1155 LOCK_TEST_WITH_RETURN(dev, file_priv);
1156
1157 /* Tell the overlay to update */
1158 I810_WRITE(0x30000, dev_priv->overlay_physical | 0x80000000);
1159
1160 return 0;
1161 }
1162
1163 /* Not sure why this isn't set all the time:
1164 */
i810_do_init_pageflip(struct drm_device * dev)1165 static void i810_do_init_pageflip(struct drm_device *dev)
1166 {
1167 drm_i810_private_t *dev_priv = dev->dev_private;
1168
1169 DRM_DEBUG("\n");
1170 dev_priv->page_flipping = 1;
1171 dev_priv->current_page = 0;
1172 dev_priv->sarea_priv->pf_current_page = dev_priv->current_page;
1173 }
1174
i810_do_cleanup_pageflip(struct drm_device * dev)1175 static int i810_do_cleanup_pageflip(struct drm_device *dev)
1176 {
1177 drm_i810_private_t *dev_priv = dev->dev_private;
1178
1179 DRM_DEBUG("\n");
1180 if (dev_priv->current_page != 0)
1181 i810_dma_dispatch_flip(dev);
1182
1183 dev_priv->page_flipping = 0;
1184 return 0;
1185 }
1186
i810_flip_bufs(struct drm_device * dev,void * data,struct drm_file * file_priv)1187 static int i810_flip_bufs(struct drm_device *dev, void *data,
1188 struct drm_file *file_priv)
1189 {
1190 drm_i810_private_t *dev_priv = dev->dev_private;
1191
1192 DRM_DEBUG("\n");
1193
1194 LOCK_TEST_WITH_RETURN(dev, file_priv);
1195
1196 if (!dev_priv->page_flipping)
1197 i810_do_init_pageflip(dev);
1198
1199 i810_dma_dispatch_flip(dev);
1200 return 0;
1201 }
1202
i810_driver_load(struct drm_device * dev,unsigned long flags)1203 int i810_driver_load(struct drm_device *dev, unsigned long flags)
1204 {
1205 dev->agp = drm_agp_init(dev);
1206 if (dev->agp) {
1207 dev->agp->agp_mtrr = arch_phys_wc_add(
1208 dev->agp->agp_info.aper_base,
1209 dev->agp->agp_info.aper_size *
1210 1024 * 1024);
1211 }
1212
1213 /* Our userspace depends upon the agp mapping support. */
1214 if (!dev->agp)
1215 return -EINVAL;
1216
1217 pci_set_master(dev->pdev);
1218
1219 return 0;
1220 }
1221
i810_driver_lastclose(struct drm_device * dev)1222 void i810_driver_lastclose(struct drm_device *dev)
1223 {
1224 i810_dma_cleanup(dev);
1225 }
1226
i810_driver_preclose(struct drm_device * dev,struct drm_file * file_priv)1227 void i810_driver_preclose(struct drm_device *dev, struct drm_file *file_priv)
1228 {
1229 if (dev->dev_private) {
1230 drm_i810_private_t *dev_priv = dev->dev_private;
1231 if (dev_priv->page_flipping)
1232 i810_do_cleanup_pageflip(dev);
1233 }
1234
1235 if (file_priv->master && file_priv->master->lock.hw_lock) {
1236 drm_legacy_idlelock_take(&file_priv->master->lock);
1237 i810_driver_reclaim_buffers(dev, file_priv);
1238 drm_legacy_idlelock_release(&file_priv->master->lock);
1239 } else {
1240 /* master disappeared, clean up stuff anyway and hope nothing
1241 * goes wrong */
1242 i810_driver_reclaim_buffers(dev, file_priv);
1243 }
1244
1245 }
1246
i810_driver_dma_quiescent(struct drm_device * dev)1247 int i810_driver_dma_quiescent(struct drm_device *dev)
1248 {
1249 i810_dma_quiescent(dev);
1250 return 0;
1251 }
1252
1253 const struct drm_ioctl_desc i810_ioctls[] = {
1254 DRM_IOCTL_DEF_DRV(I810_INIT, i810_dma_init, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY|DRM_UNLOCKED),
1255 DRM_IOCTL_DEF_DRV(I810_VERTEX, i810_dma_vertex, DRM_AUTH|DRM_UNLOCKED),
1256 DRM_IOCTL_DEF_DRV(I810_CLEAR, i810_clear_bufs, DRM_AUTH|DRM_UNLOCKED),
1257 DRM_IOCTL_DEF_DRV(I810_FLUSH, i810_flush_ioctl, DRM_AUTH|DRM_UNLOCKED),
1258 DRM_IOCTL_DEF_DRV(I810_GETAGE, i810_getage, DRM_AUTH|DRM_UNLOCKED),
1259 DRM_IOCTL_DEF_DRV(I810_GETBUF, i810_getbuf, DRM_AUTH|DRM_UNLOCKED),
1260 DRM_IOCTL_DEF_DRV(I810_SWAP, i810_swap_bufs, DRM_AUTH|DRM_UNLOCKED),
1261 DRM_IOCTL_DEF_DRV(I810_COPY, i810_copybuf, DRM_AUTH|DRM_UNLOCKED),
1262 DRM_IOCTL_DEF_DRV(I810_DOCOPY, i810_docopy, DRM_AUTH|DRM_UNLOCKED),
1263 DRM_IOCTL_DEF_DRV(I810_OV0INFO, i810_ov0_info, DRM_AUTH|DRM_UNLOCKED),
1264 DRM_IOCTL_DEF_DRV(I810_FSTATUS, i810_fstatus, DRM_AUTH|DRM_UNLOCKED),
1265 DRM_IOCTL_DEF_DRV(I810_OV0FLIP, i810_ov0_flip, DRM_AUTH|DRM_UNLOCKED),
1266 DRM_IOCTL_DEF_DRV(I810_MC, i810_dma_mc, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY|DRM_UNLOCKED),
1267 DRM_IOCTL_DEF_DRV(I810_RSTATUS, i810_rstatus, DRM_AUTH|DRM_UNLOCKED),
1268 DRM_IOCTL_DEF_DRV(I810_FLIP, i810_flip_bufs, DRM_AUTH|DRM_UNLOCKED),
1269 };
1270
1271 int i810_max_ioctl = ARRAY_SIZE(i810_ioctls);
1272