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 < 0 || 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 < 0 || 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);