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_IO | 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         .fasync = drm_fasync,
 117 #ifdef CONFIG_COMPAT
 118         .compat_ioctl = drm_compat_ioctl,
 119 #endif
 120         .llseek = noop_llseek,
 121 };
 122
 123 static int i810_map_buffer(struct drm_buf *buf, struct drm_file *file_priv)
 124 {
 125         struct drm_device *dev = file_priv->minor->dev;
 126         drm_i810_buf_priv_t *buf_priv = buf->dev_private;
 127         drm_i810_private_t *dev_priv = dev->dev_private;
 128         const struct file_operations *old_fops;
 129         int retcode = 0;
 130
 131         if (buf_priv->currently_mapped == I810_BUF_MAPPED)
 132                 return -EINVAL;
 133
 134         /* This is all entirely broken */
 135         old_fops = file_priv->filp->f_op;
 136         file_priv->filp->f_op = &i810_buffer_fops;
 137         dev_priv->mmap_buffer = buf;
 138         buf_priv->virtual = (void *)vm_mmap(file_priv->filp, 0, buf->total,
 139                                             PROT_READ | PROT_WRITE,
 140                                             MAP_SHARED, buf->bus_address);
 141         dev_priv->mmap_buffer = NULL;
 142         file_priv->filp->f_op = old_fops;
 143         if (IS_ERR(buf_priv->virtual)) {
 144                 /* Real error */
 145                 DRM_ERROR("mmap error\n");
 146                 retcode = PTR_ERR(buf_priv->virtual);
 147                 buf_priv->virtual = NULL;
 148         }
 149
 150         return retcode;
 151 }
 152
 153 static int i810_unmap_buffer(struct drm_buf *buf)
 154 {
 155         drm_i810_buf_priv_t *buf_priv = buf->dev_private;
 156         int retcode = 0;
 157
 158         if (buf_priv->currently_mapped != I810_BUF_MAPPED)
 159                 return -EINVAL;
 160
 161         retcode = vm_munmap((unsigned long)buf_priv->virtual,
 162                             (size_t) buf->total);
 163
 164         buf_priv->currently_mapped = I810_BUF_UNMAPPED;
 165         buf_priv->virtual = NULL;
 166
 167         return retcode;
 168 }
 169
 170 static int i810_dma_get_buffer(struct drm_device *dev, drm_i810_dma_t *d,
 171                                struct drm_file *file_priv)
 172 {
 173         struct drm_buf *buf;
 174         drm_i810_buf_priv_t *buf_priv;
 175         int retcode = 0;
 176
 177         buf = i810_freelist_get(dev);
 178         if (!buf) {
 179                 retcode = -ENOMEM;
 180                 DRM_DEBUG("retcode=%d\n", retcode);
 181                 return retcode;
 182         }
 183
 184         retcode = i810_map_buffer(buf, file_priv);
 185         if (retcode) {
 186                 i810_freelist_put(dev, buf);
 187                 DRM_ERROR("mapbuf failed, retcode %d\n", retcode);
 188                 return retcode;
 189         }
 190         buf->file_priv = file_priv;
 191         buf_priv = buf->dev_private;
 192         d->granted = 1;
 193         d->request_idx = buf->idx;
 194         d->request_size = buf->total;
 195         d->virtual = buf_priv->virtual;
 196
 197         return retcode;
 198 }
 199
 200 static int i810_dma_cleanup(struct drm_device *dev)
 201 {
 202         struct drm_device_dma *dma = dev->dma;
 203
 204         /* Make sure interrupts are disabled here because the uninstall ioctl
 205          * may not have been called from userspace and after dev_private
 206          * is freed, it's too late.
 207          */
 208         if (drm_core_check_feature(dev, DRIVER_HAVE_IRQ) && dev->irq_enabled)
 209                 drm_irq_uninstall(dev);
 210
 211         if (dev->dev_private) {
 212                 int i;
 213                 drm_i810_private_t *dev_priv =
 214                     (drm_i810_private_t *) dev->dev_private;
 215
 216                 if (dev_priv->ring.virtual_start)
 217                         drm_core_ioremapfree(&dev_priv->ring.map, dev);
 218                 if (dev_priv->hw_status_page) {
 219                         pci_free_consistent(dev->pdev, PAGE_SIZE,
 220                                             dev_priv->hw_status_page,
 221                                             dev_priv->dma_status_page);
 222                 }
 223                 kfree(dev->dev_private);
 224                 dev->dev_private = NULL;
 225
 226                 for (i = 0; i < dma->buf_count; i++) {
 227                         struct drm_buf *buf = dma->buflist[i];
 228                         drm_i810_buf_priv_t *buf_priv = buf->dev_private;
 229
 230                         if (buf_priv->kernel_virtual && buf->total)
 231                                 drm_core_ioremapfree(&buf_priv->map, dev);
 232                 }
 233         }
 234         return 0;
 235 }
 236
 237 static int i810_wait_ring(struct drm_device *dev, int n)
 238 {
 239         drm_i810_private_t *dev_priv = dev->dev_private;
 240         drm_i810_ring_buffer_t *ring = &(dev_priv->ring);
 241         int iters = 0;
 242         unsigned long end;
 243         unsigned int last_head = I810_READ(LP_RING + RING_HEAD) & HEAD_ADDR;
 244
 245         end = jiffies + (HZ * 3);
 246         while (ring->space < n) {
 247                 ring->head = I810_READ(LP_RING + RING_HEAD) & HEAD_ADDR;
 248                 ring->space = ring->head - (ring->tail + 8);
 249                 if (ring->space < 0)
 250                         ring->space += ring->Size;
 251
 252                 if (ring->head != last_head) {
 253                         end = jiffies + (HZ * 3);
 254                         last_head = ring->head;
 255                 }
 256
 257                 iters++;
 258                 if (time_before(end, jiffies)) {
 259                         DRM_ERROR("space: %d wanted %d\n", ring->space, n);
 260                         DRM_ERROR("lockup\n");
 261                         goto out_wait_ring;
 262                 }
 263                 udelay(1);
 264         }
 265
 266 out_wait_ring:
 267         return iters;
 268 }
 269
 270 static void i810_kernel_lost_context(struct drm_device *dev)
 271 {
 272         drm_i810_private_t *dev_priv = dev->dev_private;
 273         drm_i810_ring_buffer_t *ring = &(dev_priv->ring);
 274
 275         ring->head = I810_READ(LP_RING + RING_HEAD) & HEAD_ADDR;
 276         ring->tail = I810_READ(LP_RING + RING_TAIL);
 277         ring->space = ring->head - (ring->tail + 8);
 278         if (ring->space < 0)
 279                 ring->space += ring->Size;
 280 }
 281
 282 static int i810_freelist_init(struct drm_device *dev, drm_i810_private_t *dev_priv)
 283 {
 284         struct drm_device_dma *dma = dev->dma;
 285         int my_idx = 24;
 286         u32 *hw_status = (u32 *) (dev_priv->hw_status_page + my_idx);
 287         int i;
 288
 289         if (dma->buf_count > 1019) {
 290                 /* Not enough space in the status page for the freelist */
 291                 return -EINVAL;
 292         }
 293
 294         for (i = 0; i < dma->buf_count; i++) {
 295                 struct drm_buf *buf = dma->buflist[i];
 296                 drm_i810_buf_priv_t *buf_priv = buf->dev_private;
 297
 298                 buf_priv->in_use = hw_status++;
 299                 buf_priv->my_use_idx = my_idx;
 300                 my_idx += 4;
 301
 302                 *buf_priv->in_use = I810_BUF_FREE;
 303
 304                 buf_priv->map.offset = buf->bus_address;
 305                 buf_priv->map.size = buf->total;
 306                 buf_priv->map.type = _DRM_AGP;
 307                 buf_priv->map.flags = 0;
 308                 buf_priv->map.mtrr = 0;
 309
 310                 drm_core_ioremap(&buf_priv->map, dev);
 311                 buf_priv->kernel_virtual = buf_priv->map.handle;
 312
 313         }
 314         return 0;
 315 }
 316
 317 static int i810_dma_initialize(struct drm_device *dev,
 318                                drm_i810_private_t *dev_priv,
 319                                drm_i810_init_t *init)
 320 {
 321         struct drm_map_list *r_list;
 322         memset(dev_priv, 0, sizeof(drm_i810_private_t));
 323
 324         list_for_each_entry(r_list, &dev->maplist, head) {
 325                 if (r_list->map &&
 326                     r_list->map->type == _DRM_SHM &&
 327                     r_list->map->flags & _DRM_CONTAINS_LOCK) {
 328                         dev_priv->sarea_map = r_list->map;
 329                         break;
 330                 }
 331         }
 332         if (!dev_priv->sarea_map) {
 333                 dev->dev_private = (void *)dev_priv;
 334                 i810_dma_cleanup(dev);
 335                 DRM_ERROR("can not find sarea!\n");
 336                 return -EINVAL;
 337         }
 338         dev_priv->mmio_map = drm_core_findmap(dev, init->mmio_offset);
 339         if (!dev_priv->mmio_map) {
 340                 dev->dev_private = (void *)dev_priv;
 341                 i810_dma_cleanup(dev);
 342                 DRM_ERROR("can not find mmio map!\n");
 343                 return -EINVAL;
 344         }
 345         dev->agp_buffer_token = init->buffers_offset;
 346         dev->agp_buffer_map = drm_core_findmap(dev, init->buffers_offset);
 347         if (!dev->agp_buffer_map) {
 348                 dev->dev_private = (void *)dev_priv;
 349                 i810_dma_cleanup(dev);
 350                 DRM_ERROR("can not find dma buffer map!\n");
 351                 return -EINVAL;
 352         }
 353
 354         dev_priv->sarea_priv = (drm_i810_sarea_t *)
 355             ((u8 *) dev_priv->sarea_map->handle + init->sarea_priv_offset);
 356
 357         dev_priv->ring.Start = init->ring_start;
 358         dev_priv->ring.End = init->ring_end;
 359         dev_priv->ring.Size = init->ring_size;
 360
 361         dev_priv->ring.map.offset = dev->agp->base + init->ring_start;
 362         dev_priv->ring.map.size = init->ring_size;
 363         dev_priv->ring.map.type = _DRM_AGP;
 364         dev_priv->ring.map.flags = 0;
 365         dev_priv->ring.map.mtrr = 0;
 366
 367         drm_core_ioremap(&dev_priv->ring.map, dev);
 368
 369         if (dev_priv->ring.map.handle == NULL) {
 370                 dev->dev_private = (void *)dev_priv;
 371                 i810_dma_cleanup(dev);
 372                 DRM_ERROR("can not ioremap virtual address for"
 373                           " ring buffer\n");
 374                 return -ENOMEM;
 375         }
 376
 377         dev_priv->ring.virtual_start = dev_priv->ring.map.handle;
 378
 379         dev_priv->ring.tail_mask = dev_priv->ring.Size - 1;
 380
 381         dev_priv->w = init->w;
 382         dev_priv->h = init->h;
 383         dev_priv->pitch = init->pitch;
 384         dev_priv->back_offset = init->back_offset;
 385         dev_priv->depth_offset = init->depth_offset;
 386         dev_priv->front_offset = init->front_offset;
 387
 388         dev_priv->overlay_offset = init->overlay_offset;
 389         dev_priv->overlay_physical = init->overlay_physical;
 390
 391         dev_priv->front_di1 = init->front_offset | init->pitch_bits;
 392         dev_priv->back_di1 = init->back_offset | init->pitch_bits;
 393         dev_priv->zi1 = init->depth_offset | init->pitch_bits;
 394
 395         /* Program Hardware Status Page */
 396         dev_priv->hw_status_page =
 397             pci_alloc_consistent(dev->pdev, PAGE_SIZE,
 398                                  &dev_priv->dma_status_page);
 399         if (!dev_priv->hw_status_page) {
 400                 dev->dev_private = (void *)dev_priv;
 401                 i810_dma_cleanup(dev);
 402                 DRM_ERROR("Can not allocate hardware status page\n");
 403                 return -ENOMEM;
 404         }
 405         memset(dev_priv->hw_status_page, 0, PAGE_SIZE);
 406         DRM_DEBUG("hw status page @ %p\n", dev_priv->hw_status_page);
 407
 408         I810_WRITE(0x02080, dev_priv->dma_status_page);
 409         DRM_DEBUG("Enabled hardware status page\n");
 410
 411         /* Now we need to init our freelist */
 412         if (i810_freelist_init(dev, dev_priv) != 0) {
 413                 dev->dev_private = (void *)dev_priv;
 414                 i810_dma_cleanup(dev);
 415                 DRM_ERROR("Not enough space in the status page for"
 416                           " the freelist\n");
 417                 return -ENOMEM;
 418         }
 419         dev->dev_private = (void *)dev_priv;
 420
 421         return 0;
 422 }
 423
 424 static int i810_dma_init(struct drm_device *dev, void *data,
 425                          struct drm_file *file_priv)
 426 {
 427         drm_i810_private_t *dev_priv;
 428         drm_i810_init_t *init = data;
 429         int retcode = 0;
 430
 431         switch (init->func) {
 432         case I810_INIT_DMA_1_4:
 433                 DRM_INFO("Using v1.4 init.\n");
 434                 dev_priv = kmalloc(sizeof(drm_i810_private_t), GFP_KERNEL);
 435                 if (dev_priv == NULL)
 436                         return -ENOMEM;
 437                 retcode = i810_dma_initialize(dev, dev_priv, init);
 438                 break;
 439
 440         case I810_CLEANUP_DMA:
 441                 DRM_INFO("DMA Cleanup\n");
 442                 retcode = i810_dma_cleanup(dev);
 443                 break;
 444         default:
 445                 return -EINVAL;
 446         }
 447
 448         return retcode;
 449 }
 450
 451 /* Most efficient way to verify state for the i810 is as it is
 452  * emitted.  Non-conformant state is silently dropped.
 453  *
 454  * Use 'volatile' & local var tmp to force the emitted values to be
 455  * identical to the verified ones.
 456  */
 457 static void i810EmitContextVerified(struct drm_device *dev,
 458                                     volatile unsigned int *code)
 459 {
 460         drm_i810_private_t *dev_priv = dev->dev_private;
 461         int i, j = 0;
 462         unsigned int tmp;
 463         RING_LOCALS;
 464
 465         BEGIN_LP_RING(I810_CTX_SETUP_SIZE);
 466
 467         OUT_RING(GFX_OP_COLOR_FACTOR);
 468         OUT_RING(code[I810_CTXREG_CF1]);
 469
 470         OUT_RING(GFX_OP_STIPPLE);
 471         OUT_RING(code[I810_CTXREG_ST1]);
 472
 473         for (i = 4; i < I810_CTX_SETUP_SIZE; i++) {
 474                 tmp = code[i];
 475
 476                 if ((tmp & (7 << 29)) == (3 << 29) &&
 477                     (tmp & (0x1f << 24)) < (0x1d << 24)) {
 478                         OUT_RING(tmp);
 479                         j++;
 480                 } else
 481                         printk("constext state dropped!!!\n");
 482         }
 483
 484         if (j & 1)
 485                 OUT_RING(0);
 486
 487         ADVANCE_LP_RING();
 488 }
 489
 490 static void i810EmitTexVerified(struct drm_device *dev, volatile unsigned int *code)
 491 {
 492         drm_i810_private_t *dev_priv = dev->dev_private;
 493         int i, j = 0;
 494         unsigned int tmp;
 495         RING_LOCALS;
 496
 497         BEGIN_LP_RING(I810_TEX_SETUP_SIZE);
 498
 499         OUT_RING(GFX_OP_MAP_INFO);
 500         OUT_RING(code[I810_TEXREG_MI1]);
 501         OUT_RING(code[I810_TEXREG_MI2]);
 502         OUT_RING(code[I810_TEXREG_MI3]);
 503
 504         for (i = 4; i < I810_TEX_SETUP_SIZE; i++) {
 505                 tmp = code[i];
 506
 507                 if ((tmp & (7 << 29)) == (3 << 29) &&
 508                     (tmp & (0x1f << 24)) < (0x1d << 24)) {
 509                         OUT_RING(tmp);
 510                         j++;
 511                 } else
 512                         printk("texture state dropped!!!\n");
 513         }
 514
 515         if (j & 1)
 516                 OUT_RING(0);
 517
 518         ADVANCE_LP_RING();
 519 }
 520
 521 /* Need to do some additional checking when setting the dest buffer.
 522  */
 523 static void i810EmitDestVerified(struct drm_device *dev,
 524                                  volatile unsigned int *code)
 525 {
 526         drm_i810_private_t *dev_priv = dev->dev_private;
 527         unsigned int tmp;
 528         RING_LOCALS;
 529
 530         BEGIN_LP_RING(I810_DEST_SETUP_SIZE + 2);
 531
 532         tmp = code[I810_DESTREG_DI1];
 533         if (tmp == dev_priv->front_di1 || tmp == dev_priv->back_di1) {
 534                 OUT_RING(CMD_OP_DESTBUFFER_INFO);
 535                 OUT_RING(tmp);
 536         } else
 537                 DRM_DEBUG("bad di1 %x (allow %x or %x)\n",
 538                           tmp, dev_priv->front_di1, dev_priv->back_di1);
 539
 540         /* invarient:
 541          */
 542         OUT_RING(CMD_OP_Z_BUFFER_INFO);
 543         OUT_RING(dev_priv->zi1);
 544
 545         OUT_RING(GFX_OP_DESTBUFFER_VARS);
 546         OUT_RING(code[I810_DESTREG_DV1]);
 547
 548         OUT_RING(GFX_OP_DRAWRECT_INFO);
 549         OUT_RING(code[I810_DESTREG_DR1]);
 550         OUT_RING(code[I810_DESTREG_DR2]);
 551         OUT_RING(code[I810_DESTREG_DR3]);
 552         OUT_RING(code[I810_DESTREG_DR4]);
 553         OUT_RING(0);
 554
 555         ADVANCE_LP_RING();
 556 }
 557
 558 static void i810EmitState(struct drm_device *dev)
 559 {
 560         drm_i810_private_t *dev_priv = dev->dev_private;
 561         drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
 562         unsigned int dirty = sarea_priv->dirty;
 563
 564         DRM_DEBUG("%x\n", dirty);
 565
 566         if (dirty & I810_UPLOAD_BUFFERS) {
 567                 i810EmitDestVerified(dev, sarea_priv->BufferState);
 568                 sarea_priv->dirty &= ~I810_UPLOAD_BUFFERS;
 569         }
 570
 571         if (dirty & I810_UPLOAD_CTX) {
 572                 i810EmitContextVerified(dev, sarea_priv->ContextState);
 573                 sarea_priv->dirty &= ~I810_UPLOAD_CTX;
 574         }
 575
 576         if (dirty & I810_UPLOAD_TEX0) {
 577                 i810EmitTexVerified(dev, sarea_priv->TexState[0]);
 578                 sarea_priv->dirty &= ~I810_UPLOAD_TEX0;
 579         }
 580
 581         if (dirty & I810_UPLOAD_TEX1) {
 582                 i810EmitTexVerified(dev, sarea_priv->TexState[1]);
 583                 sarea_priv->dirty &= ~I810_UPLOAD_TEX1;
 584         }
 585 }
 586
 587 /* need to verify
 588  */
 589 static void i810_dma_dispatch_clear(struct drm_device *dev, int flags,
 590                                     unsigned int clear_color,
 591                                     unsigned int clear_zval)
 592 {
 593         drm_i810_private_t *dev_priv = dev->dev_private;
 594         drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
 595         int nbox = sarea_priv->nbox;
 596         struct drm_clip_rect *pbox = sarea_priv->boxes;
 597         int pitch = dev_priv->pitch;
 598         int cpp = 2;
 599         int i;
 600         RING_LOCALS;
 601
 602         if (dev_priv->current_page == 1) {
 603                 unsigned int tmp = flags;
 604
 605                 flags &= ~(I810_FRONT | I810_BACK);
 606                 if (tmp & I810_FRONT)
 607                         flags |= I810_BACK;
 608                 if (tmp & I810_BACK)
 609                         flags |= I810_FRONT;
 610         }
 611
 612         i810_kernel_lost_context(dev);
 613
 614         if (nbox > I810_NR_SAREA_CLIPRECTS)
 615                 nbox = I810_NR_SAREA_CLIPRECTS;
 616
 617         for (i = 0; i < nbox; i++, pbox++) {
 618                 unsigned int x = pbox->x1;
 619                 unsigned int y = pbox->y1;
 620                 unsigned int width = (pbox->x2 - x) * cpp;
 621                 unsigned int height = pbox->y2 - y;
 622                 unsigned int start = y * pitch + x * cpp;
 623
 624                 if (pbox->x1 > pbox->x2 ||
 625                     pbox->y1 > pbox->y2 ||
 626                     pbox->x2 > dev_priv->w || pbox->y2 > dev_priv->h)
 627                         continue;
 628
 629                 if (flags & I810_FRONT) {
 630                         BEGIN_LP_RING(6);
 631                         OUT_RING(BR00_BITBLT_CLIENT | BR00_OP_COLOR_BLT | 0x3);
 632                         OUT_RING(BR13_SOLID_PATTERN | (0xF0 << 16) | pitch);
 633                         OUT_RING((height << 16) | width);
 634                         OUT_RING(start);
 635                         OUT_RING(clear_color);
 636                         OUT_RING(0);
 637                         ADVANCE_LP_RING();
 638                 }
 639
 640                 if (flags & I810_BACK) {
 641                         BEGIN_LP_RING(6);
 642                         OUT_RING(BR00_BITBLT_CLIENT | BR00_OP_COLOR_BLT | 0x3);
 643                         OUT_RING(BR13_SOLID_PATTERN | (0xF0 << 16) | pitch);
 644                         OUT_RING((height << 16) | width);
 645                         OUT_RING(dev_priv->back_offset + start);
 646                         OUT_RING(clear_color);
 647                         OUT_RING(0);
 648                         ADVANCE_LP_RING();
 649                 }
 650
 651                 if (flags & I810_DEPTH) {
 652                         BEGIN_LP_RING(6);
 653                         OUT_RING(BR00_BITBLT_CLIENT | BR00_OP_COLOR_BLT | 0x3);
 654                         OUT_RING(BR13_SOLID_PATTERN | (0xF0 << 16) | pitch);
 655                         OUT_RING((height << 16) | width);
 656                         OUT_RING(dev_priv->depth_offset + start);
 657                         OUT_RING(clear_zval);
 658                         OUT_RING(0);
 659                         ADVANCE_LP_RING();
 660                 }
 661         }
 662 }
 663
 664 static void i810_dma_dispatch_swap(struct drm_device *dev)
 665 {
 666         drm_i810_private_t *dev_priv = dev->dev_private;
 667         drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
 668         int nbox = sarea_priv->nbox;
 669         struct drm_clip_rect *pbox = sarea_priv->boxes;
 670         int pitch = dev_priv->pitch;
 671         int cpp = 2;
 672         int i;
 673         RING_LOCALS;
 674
 675         DRM_DEBUG("swapbuffers\n");
 676
 677         i810_kernel_lost_context(dev);
 678
 679         if (nbox > I810_NR_SAREA_CLIPRECTS)
 680                 nbox = I810_NR_SAREA_CLIPRECTS;
 681
 682         for (i = 0; i < nbox; i++, pbox++) {
 683                 unsigned int w = pbox->x2 - pbox->x1;
 684                 unsigned int h = pbox->y2 - pbox->y1;
 685                 unsigned int dst = pbox->x1 * cpp + pbox->y1 * pitch;
 686                 unsigned int start = dst;
 687
 688                 if (pbox->x1 > pbox->x2 ||
 689                     pbox->y1 > pbox->y2 ||
 690                     pbox->x2 > dev_priv->w || pbox->y2 > dev_priv->h)
 691                         continue;
 692
 693                 BEGIN_LP_RING(6);
 694                 OUT_RING(BR00_BITBLT_CLIENT | BR00_OP_SRC_COPY_BLT | 0x4);
 695                 OUT_RING(pitch | (0xCC << 16));
 696                 OUT_RING((h << 16) | (w * cpp));
 697                 if (dev_priv->current_page == 0)
 698                         OUT_RING(dev_priv->front_offset + start);
 699                 else
 700                         OUT_RING(dev_priv->back_offset + start);
 701                 OUT_RING(pitch);
 702                 if (dev_priv->current_page == 0)
 703                         OUT_RING(dev_priv->back_offset + start);
 704                 else
 705                         OUT_RING(dev_priv->front_offset + start);
 706                 ADVANCE_LP_RING();
 707         }
 708 }
 709
 710 static void i810_dma_dispatch_vertex(struct drm_device *dev,
 711                                      struct drm_buf *buf, int discard, int used)
 712 {
 713         drm_i810_private_t *dev_priv = dev->dev_private;
 714         drm_i810_buf_priv_t *buf_priv = buf->dev_private;
 715         drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
 716         struct drm_clip_rect *box = sarea_priv->boxes;
 717         int nbox = sarea_priv->nbox;
 718         unsigned long address = (unsigned long)buf->bus_address;
 719         unsigned long start = address - dev->agp->base;
 720         int i = 0;
 721         RING_LOCALS;
 722
 723         i810_kernel_lost_context(dev);
 724
 725         if (nbox > I810_NR_SAREA_CLIPRECTS)
 726                 nbox = I810_NR_SAREA_CLIPRECTS;
 727
 728         if (used > 4 * 1024)
 729                 used = 0;
 730
 731         if (sarea_priv->dirty)
 732                 i810EmitState(dev);
 733
 734         if (buf_priv->currently_mapped == I810_BUF_MAPPED) {
 735                 unsigned int prim = (sarea_priv->vertex_prim & PR_MASK);
 736
 737                 *(u32 *) buf_priv->kernel_virtual =
 738                     ((GFX_OP_PRIMITIVE | prim | ((used / 4) - 2)));
 739
 740                 if (used & 4) {
 741                         *(u32 *) ((char *) buf_priv->kernel_virtual + used) = 0;
 742                         used += 4;
 743                 }
 744
 745                 i810_unmap_buffer(buf);
 746         }
 747
 748         if (used) {
 749                 do {
 750                         if (i < nbox) {
 751                                 BEGIN_LP_RING(4);
 752                                 OUT_RING(GFX_OP_SCISSOR | SC_UPDATE_SCISSOR |
 753                                          SC_ENABLE);
 754                                 OUT_RING(GFX_OP_SCISSOR_INFO);
 755                                 OUT_RING(box[i].x1 | (box[i].y1 << 16));
 756                                 OUT_RING((box[i].x2 -
 757                                           1) | ((box[i].y2 - 1) << 16));
 758                                 ADVANCE_LP_RING();
 759                         }
 760
 761                         BEGIN_LP_RING(4);
 762                         OUT_RING(CMD_OP_BATCH_BUFFER);
 763                         OUT_RING(start | BB1_PROTECTED);
 764                         OUT_RING(start + used - 4);
 765                         OUT_RING(0);
 766                         ADVANCE_LP_RING();
 767
 768                 } while (++i < nbox);
 769         }
 770
 771         if (discard) {
 772                 dev_priv->counter++;
 773
 774                 (void)cmpxchg(buf_priv->in_use, I810_BUF_CLIENT,
 775                               I810_BUF_HARDWARE);
 776
 777                 BEGIN_LP_RING(8);
 778                 OUT_RING(CMD_STORE_DWORD_IDX);
 779                 OUT_RING(20);
 780                 OUT_RING(dev_priv->counter);
 781                 OUT_RING(CMD_STORE_DWORD_IDX);
 782                 OUT_RING(buf_priv->my_use_idx);
 783                 OUT_RING(I810_BUF_FREE);
 784                 OUT_RING(CMD_REPORT_HEAD);
 785                 OUT_RING(0);
 786                 ADVANCE_LP_RING();
 787         }
 788 }
 789
 790 static void i810_dma_dispatch_flip(struct drm_device *dev)
 791 {
 792         drm_i810_private_t *dev_priv = dev->dev_private;
 793         int pitch = dev_priv->pitch;
 794         RING_LOCALS;
 795
 796         DRM_DEBUG("page=%d pfCurrentPage=%d\n",
 797                   dev_priv->current_page,
 798                   dev_priv->sarea_priv->pf_current_page);
 799
 800         i810_kernel_lost_context(dev);
 801
 802         BEGIN_LP_RING(2);
 803         OUT_RING(INST_PARSER_CLIENT | INST_OP_FLUSH | INST_FLUSH_MAP_CACHE);
 804         OUT_RING(0);
 805         ADVANCE_LP_RING();
 806
 807         BEGIN_LP_RING(I810_DEST_SETUP_SIZE + 2);
 808         /* On i815 at least ASYNC is buggy */
 809         /* pitch<<5 is from 11.2.8 p158,
 810            its the pitch / 8 then left shifted 8,
 811            so (pitch >> 3) << 8 */
 812         OUT_RING(CMD_OP_FRONTBUFFER_INFO | (pitch << 5) /*| ASYNC_FLIP */ );
 813         if (dev_priv->current_page == 0) {
 814                 OUT_RING(dev_priv->back_offset);
 815                 dev_priv->current_page = 1;
 816         } else {
 817                 OUT_RING(dev_priv->front_offset);
 818                 dev_priv->current_page = 0;
 819         }
 820         OUT_RING(0);
 821         ADVANCE_LP_RING();
 822
 823         BEGIN_LP_RING(2);
 824         OUT_RING(CMD_OP_WAIT_FOR_EVENT | WAIT_FOR_PLANE_A_FLIP);
 825         OUT_RING(0);
 826         ADVANCE_LP_RING();
 827
 828         /* Increment the frame counter.  The client-side 3D driver must
 829          * throttle the framerate by waiting for this value before
 830          * performing the swapbuffer ioctl.
 831          */
 832         dev_priv->sarea_priv->pf_current_page = dev_priv->current_page;
 833
 834 }
 835
 836 static void i810_dma_quiescent(struct drm_device *dev)
 837 {
 838         drm_i810_private_t *dev_priv = dev->dev_private;
 839         RING_LOCALS;
 840
 841         i810_kernel_lost_context(dev);
 842
 843         BEGIN_LP_RING(4);
 844         OUT_RING(INST_PARSER_CLIENT | INST_OP_FLUSH | INST_FLUSH_MAP_CACHE);
 845         OUT_RING(CMD_REPORT_HEAD);
 846         OUT_RING(0);
 847         OUT_RING(0);
 848         ADVANCE_LP_RING();
 849
 850         i810_wait_ring(dev, dev_priv->ring.Size - 8);
 851 }
 852
 853 static int i810_flush_queue(struct drm_device *dev)
 854 {
 855         drm_i810_private_t *dev_priv = dev->dev_private;
 856         struct drm_device_dma *dma = dev->dma;
 857         int i, ret = 0;
 858         RING_LOCALS;
 859
 860         i810_kernel_lost_context(dev);
 861
 862         BEGIN_LP_RING(2);
 863         OUT_RING(CMD_REPORT_HEAD);
 864         OUT_RING(0);
 865         ADVANCE_LP_RING();
 866
 867         i810_wait_ring(dev, dev_priv->ring.Size - 8);
 868
 869         for (i = 0; i < dma->buf_count; i++) {
 870                 struct drm_buf *buf = dma->buflist[i];
 871                 drm_i810_buf_priv_t *buf_priv = buf->dev_private;
 872
 873                 int used = cmpxchg(buf_priv->in_use, I810_BUF_HARDWARE,
 874                                    I810_BUF_FREE);
 875
 876                 if (used == I810_BUF_HARDWARE)
 877                         DRM_DEBUG("reclaimed from HARDWARE\n");
 878                 if (used == I810_BUF_CLIENT)
 879                         DRM_DEBUG("still on client\n");
 880         }
 881
 882         return ret;
 883 }
 884
 885 /* Must be called with the lock held */
 886 void i810_driver_reclaim_buffers(struct drm_device *dev,
 887                                  struct drm_file *file_priv)
 888 {
 889         struct drm_device_dma *dma = dev->dma;
 890         int i;
 891
 892         if (!dma)
 893                 return;
 894         if (!dev->dev_private)
 895                 return;
 896         if (!dma->buflist)
 897                 return;
 898
 899         i810_flush_queue(dev);
 900
 901         for (i = 0; i < dma->buf_count; i++) {
 902                 struct drm_buf *buf = dma->buflist[i];
 903                 drm_i810_buf_priv_t *buf_priv = buf->dev_private;
 904
 905                 if (buf->file_priv == file_priv && buf_priv) {
 906                         int used = cmpxchg(buf_priv->in_use, I810_BUF_CLIENT,
 907                                            I810_BUF_FREE);
 908
 909                         if (used == I810_BUF_CLIENT)
 910                                 DRM_DEBUG("reclaimed from client\n");
 911                         if (buf_priv->currently_mapped == I810_BUF_MAPPED)
 912                                 buf_priv->currently_mapped = I810_BUF_UNMAPPED;
 913                 }
 914         }
 915 }
 916
 917 static int i810_flush_ioctl(struct drm_device *dev, void *data,
 918                             struct drm_file *file_priv)
 919 {
 920         LOCK_TEST_WITH_RETURN(dev, file_priv);
 921
 922         i810_flush_queue(dev);
 923         return 0;
 924 }
 925
 926 static int i810_dma_vertex(struct drm_device *dev, void *data,
 927                            struct drm_file *file_priv)
 928 {
 929         struct drm_device_dma *dma = dev->dma;
 930         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
 931         u32 *hw_status = dev_priv->hw_status_page;
 932         drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
 933             dev_priv->sarea_priv;
 934         drm_i810_vertex_t *vertex = data;
 935
 936         LOCK_TEST_WITH_RETURN(dev, file_priv);
 937
 938         DRM_DEBUG("idx %d used %d discard %d\n",
 939                   vertex->idx, vertex->used, vertex->discard);
 940
 941         if (vertex->idx < 0 || vertex->idx > dma->buf_count)
 942                 return -EINVAL;
 943
 944         i810_dma_dispatch_vertex(dev,
 945                                  dma->buflist[vertex->idx],
 946                                  vertex->discard, vertex->used);
 947
 948         atomic_add(vertex->used, &dev->counts[_DRM_STAT_SECONDARY]);
 949         atomic_inc(&dev->counts[_DRM_STAT_DMA]);
 950         sarea_priv->last_enqueue = dev_priv->counter - 1;
 951         sarea_priv->last_dispatch = (int)hw_status[5];
 952
 953         return 0;
 954 }
 955
 956 static int i810_clear_bufs(struct drm_device *dev, void *data,
 957                            struct drm_file *file_priv)
 958 {
 959         drm_i810_clear_t *clear = data;
 960
 961         LOCK_TEST_WITH_RETURN(dev, file_priv);
 962
 963         /* GH: Someone's doing nasty things... */
 964         if (!dev->dev_private)
 965                 return -EINVAL;
 966
 967         i810_dma_dispatch_clear(dev, clear->flags,
 968                                 clear->clear_color, clear->clear_depth);
 969         return 0;
 970 }
 971
 972 static int i810_swap_bufs(struct drm_device *dev, void *data,
 973                           struct drm_file *file_priv)
 974 {
 975         DRM_DEBUG("\n");
 976
 977         LOCK_TEST_WITH_RETURN(dev, file_priv);
 978
 979         i810_dma_dispatch_swap(dev);
 980         return 0;
 981 }
 982
 983 static int i810_getage(struct drm_device *dev, void *data,
 984                        struct drm_file *file_priv)
 985 {
 986         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
 987         u32 *hw_status = dev_priv->hw_status_page;
 988         drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
 989             dev_priv->sarea_priv;
 990
 991         sarea_priv->last_dispatch = (int)hw_status[5];
 992         return 0;
 993 }
 994
 995 static int i810_getbuf(struct drm_device *dev, void *data,
 996                        struct drm_file *file_priv)
 997 {
 998         int retcode = 0;
 999         drm_i810_dma_t *d = data;
1000         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1001         u32 *hw_status = dev_priv->hw_status_page;
1002         drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
1003             dev_priv->sarea_priv;
1004
1005         LOCK_TEST_WITH_RETURN(dev, file_priv);
1006
1007         d->granted = 0;
1008
1009         retcode = i810_dma_get_buffer(dev, d, file_priv);
1010
1011         DRM_DEBUG("i810_dma: %d returning %d, granted = %d\n",
1012                   task_pid_nr(current), retcode, d->granted);
1013
1014         sarea_priv->last_dispatch = (int)hw_status[5];
1015
1016         return retcode;
1017 }
1018
1019 static int i810_copybuf(struct drm_device *dev, void *data,
1020                         struct drm_file *file_priv)
1021 {
1022         /* Never copy - 2.4.x doesn't need it */
1023         return 0;
1024 }
1025
1026 static int i810_docopy(struct drm_device *dev, void *data,
1027                         struct drm_file *file_priv)
1028 {
1029         /* Never copy - 2.4.x doesn't need it */
1030         return 0;
1031 }
1032
1033 static void i810_dma_dispatch_mc(struct drm_device *dev, struct drm_buf *buf, int used,
1034                                  unsigned int last_render)
1035 {
1036         drm_i810_private_t *dev_priv = dev->dev_private;
1037         drm_i810_buf_priv_t *buf_priv = buf->dev_private;
1038         drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
1039         unsigned long address = (unsigned long)buf->bus_address;
1040         unsigned long start = address - dev->agp->base;
1041         int u;
1042         RING_LOCALS;
1043
1044         i810_kernel_lost_context(dev);
1045
1046         u = cmpxchg(buf_priv->in_use, I810_BUF_CLIENT, I810_BUF_HARDWARE);
1047         if (u != I810_BUF_CLIENT)
1048                 DRM_DEBUG("MC found buffer that isn't mine!\n");
1049
1050         if (used > 4 * 1024)
1051                 used = 0;
1052
1053         sarea_priv->dirty = 0x7f;
1054
1055         DRM_DEBUG("addr 0x%lx, used 0x%x\n", address, used);
1056
1057         dev_priv->counter++;
1058         DRM_DEBUG("dispatch counter : %ld\n", dev_priv->counter);
1059         DRM_DEBUG("start : %lx\n", start);
1060         DRM_DEBUG("used : %d\n", used);
1061         DRM_DEBUG("start + used - 4 : %ld\n", start + used - 4);
1062
1063         if (buf_priv->currently_mapped == I810_BUF_MAPPED) {
1064                 if (used & 4) {
1065                         *(u32 *) ((char *) buf_priv->virtual + used) = 0;
1066                         used += 4;
1067                 }
1068
1069                 i810_unmap_buffer(buf);
1070         }
1071         BEGIN_LP_RING(4);
1072         OUT_RING(CMD_OP_BATCH_BUFFER);
1073         OUT_RING(start | BB1_PROTECTED);
1074         OUT_RING(start + used - 4);
1075         OUT_RING(0);
1076         ADVANCE_LP_RING();
1077
1078         BEGIN_LP_RING(8);
1079         OUT_RING(CMD_STORE_DWORD_IDX);
1080         OUT_RING(buf_priv->my_use_idx);
1081         OUT_RING(I810_BUF_FREE);
1082         OUT_RING(0);
1083
1084         OUT_RING(CMD_STORE_DWORD_IDX);
1085         OUT_RING(16);
1086         OUT_RING(last_render);
1087         OUT_RING(0);
1088         ADVANCE_LP_RING();
1089 }
1090
1091 static int i810_dma_mc(struct drm_device *dev, void *data,
1092                        struct drm_file *file_priv)
1093 {
1094         struct drm_device_dma *dma = dev->dma;
1095         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1096         u32 *hw_status = dev_priv->hw_status_page;
1097         drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
1098             dev_priv->sarea_priv;
1099         drm_i810_mc_t *mc = data;
1100
1101         LOCK_TEST_WITH_RETURN(dev, file_priv);
1102
1103         if (mc->idx >= dma->buf_count || mc->idx < 0)
1104                 return -EINVAL;
1105
1106         i810_dma_dispatch_mc(dev, dma->buflist[mc->idx], mc->used,
1107                              mc->last_render);
1108
1109         atomic_add(mc->used, &dev->counts[_DRM_STAT_SECONDARY]);
1110         atomic_inc(&dev->counts[_DRM_STAT_DMA]);
1111         sarea_priv->last_enqueue = dev_priv->counter - 1;
1112         sarea_priv->last_dispatch = (int)hw_status[5];
1113
1114         return 0;
1115 }
1116
1117 static int i810_rstatus(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
1122         return (int)(((u32 *) (dev_priv->hw_status_page))[4]);
1123 }
1124
1125 static int i810_ov0_info(struct drm_device *dev, void *data,
1126                          struct drm_file *file_priv)
1127 {
1128         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1129         drm_i810_overlay_t *ov = data;
1130
1131         ov->offset = dev_priv->overlay_offset;
1132         ov->physical = dev_priv->overlay_physical;
1133
1134         return 0;
1135 }
1136
1137 static int i810_fstatus(struct drm_device *dev, void *data,
1138                         struct drm_file *file_priv)
1139 {
1140         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1141
1142         LOCK_TEST_WITH_RETURN(dev, file_priv);
1143         return I810_READ(0x30008);
1144 }
1145
1146 static int i810_ov0_flip(struct drm_device *dev, void *data,
1147                          struct drm_file *file_priv)
1148 {
1149         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1150
1151         LOCK_TEST_WITH_RETURN(dev, file_priv);
1152
1153         /* Tell the overlay to update */
1154         I810_WRITE(0x30000, dev_priv->overlay_physical | 0x80000000);
1155
1156         return 0;
1157 }
1158
1159 /* Not sure why this isn't set all the time:
1160  */
1161 static void i810_do_init_pageflip(struct drm_device *dev)
1162 {
1163         drm_i810_private_t *dev_priv = dev->dev_private;
1164
1165         DRM_DEBUG("\n");
1166         dev_priv->page_flipping = 1;
1167         dev_priv->current_page = 0;
1168         dev_priv->sarea_priv->pf_current_page = dev_priv->current_page;
1169 }
1170
1171 static int i810_do_cleanup_pageflip(struct drm_device *dev)
1172 {
1173         drm_i810_private_t *dev_priv = dev->dev_private;
1174
1175         DRM_DEBUG("\n");
1176         if (dev_priv->current_page != 0)
1177                 i810_dma_dispatch_flip(dev);
1178
1179         dev_priv->page_flipping = 0;
1180         return 0;
1181 }
1182
1183 static int i810_flip_bufs(struct drm_device *dev, void *data,
1184                           struct drm_file *file_priv)
1185 {
1186         drm_i810_private_t *dev_priv = dev->dev_private;
1187
1188         DRM_DEBUG("\n");
1189
1190         LOCK_TEST_WITH_RETURN(dev, file_priv);
1191
1192         if (!dev_priv->page_flipping)
1193                 i810_do_init_pageflip(dev);
1194
1195         i810_dma_dispatch_flip(dev);
1196         return 0;
1197 }
1198
1199 int i810_driver_load(struct drm_device *dev, unsigned long flags)
1200 {
1201         /* i810 has 4 more counters */
1202         dev->counters += 4;
1203         dev->types[6] = _DRM_STAT_IRQ;
1204         dev->types[7] = _DRM_STAT_PRIMARY;
1205         dev->types[8] = _DRM_STAT_SECONDARY;
1206         dev->types[9] = _DRM_STAT_DMA;
1207
1208         pci_set_master(dev->pdev);
1209
1210         return 0;
1211 }
1212
1213 void i810_driver_lastclose(struct drm_device *dev)
1214 {
1215         i810_dma_cleanup(dev);
1216 }
1217
1218 void i810_driver_preclose(struct drm_device *dev, struct drm_file *file_priv)
1219 {
1220         if (dev->dev_private) {
1221                 drm_i810_private_t *dev_priv = dev->dev_private;
1222                 if (dev_priv->page_flipping)
1223                         i810_do_cleanup_pageflip(dev);
1224         }
1225
1226         if (file_priv->master && file_priv->master->lock.hw_lock) {
1227                 drm_idlelock_take(&file_priv->master->lock);
1228                 i810_driver_reclaim_buffers(dev, file_priv);
1229                 drm_idlelock_release(&file_priv->master->lock);
1230         } else {
1231                 /* master disappeared, clean up stuff anyway and hope nothing
1232                  * goes wrong */
1233                 i810_driver_reclaim_buffers(dev, file_priv);
1234         }
1235
1236 }
1237
1238 int i810_driver_dma_quiescent(struct drm_device *dev)
1239 {
1240         i810_dma_quiescent(dev);
1241         return 0;
1242 }
1243
1244 struct drm_ioctl_desc i810_ioctls[] = {
1245         DRM_IOCTL_DEF_DRV(I810_INIT, i810_dma_init, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY|DRM_UNLOCKED),
1246         DRM_IOCTL_DEF_DRV(I810_VERTEX, i810_dma_vertex, DRM_AUTH|DRM_UNLOCKED),
1247         DRM_IOCTL_DEF_DRV(I810_CLEAR, i810_clear_bufs, DRM_AUTH|DRM_UNLOCKED),
1248         DRM_IOCTL_DEF_DRV(I810_FLUSH, i810_flush_ioctl, DRM_AUTH|DRM_UNLOCKED),
1249         DRM_IOCTL_DEF_DRV(I810_GETAGE, i810_getage, DRM_AUTH|DRM_UNLOCKED),
1250         DRM_IOCTL_DEF_DRV(I810_GETBUF, i810_getbuf, DRM_AUTH|DRM_UNLOCKED),
1251         DRM_IOCTL_DEF_DRV(I810_SWAP, i810_swap_bufs, DRM_AUTH|DRM_UNLOCKED),
1252         DRM_IOCTL_DEF_DRV(I810_COPY, i810_copybuf, DRM_AUTH|DRM_UNLOCKED),
1253         DRM_IOCTL_DEF_DRV(I810_DOCOPY, i810_docopy, DRM_AUTH|DRM_UNLOCKED),
1254         DRM_IOCTL_DEF_DRV(I810_OV0INFO, i810_ov0_info, DRM_AUTH|DRM_UNLOCKED),
1255         DRM_IOCTL_DEF_DRV(I810_FSTATUS, i810_fstatus, DRM_AUTH|DRM_UNLOCKED),
1256         DRM_IOCTL_DEF_DRV(I810_OV0FLIP, i810_ov0_flip, DRM_AUTH|DRM_UNLOCKED),
1257         DRM_IOCTL_DEF_DRV(I810_MC, i810_dma_mc, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY|DRM_UNLOCKED),
1258         DRM_IOCTL_DEF_DRV(I810_RSTATUS, i810_rstatus, DRM_AUTH|DRM_UNLOCKED),
1259         DRM_IOCTL_DEF_DRV(I810_FLIP, i810_flip_bufs, DRM_AUTH|DRM_UNLOCKED),
1260 };
1261
1262 int i810_max_ioctl = DRM_ARRAY_SIZE(i810_ioctls);
1263
1264 /**
1265  * Determine if the device really is AGP or not.
1266  *
1267  * All Intel graphics chipsets are treated as AGP, even if they are really
1268  * PCI-e.
1269  *
1270  * \param dev   The device to be tested.
1271  *
1272  * \returns
1273  * A value of 1 is always retured to indictate every i810 is AGP.
1274  */
1275 int i810_driver_device_is_agp(struct drm_device *dev)
1276 {
1277         return 1;
1278 }