drivers/gpu/drm/i810/i810_dma.c

   1 /* i810_dma.c -- DMA support for the i810 -*- linux-c -*-
   2  * Created: Mon Dec 13 01:50:01 1999 by jhartmann@precisioninsight.com
   3  *
   4  * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
   5  * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
   6  * All Rights Reserved.
   7  *
   8  * Permission is hereby granted, free of charge, to any person obtaining a
   9  * copy of this software and associated documentation files (the "Software"),
  10  * to deal in the Software without restriction, including without limitation
  11  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  12  * and/or sell copies of the Software, and to permit persons to whom the
  13  * Software is furnished to do so, subject to the following conditions:
  14  *
  15  * The above copyright notice and this permission notice (including the next
  16  * paragraph) shall be included in all copies or substantial portions of the
  17  * Software.
  18  *
  19  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  20  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  21  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  22  * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
  23  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  24  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  25  * DEALINGS IN THE SOFTWARE.
  26  *
  27  * Authors: Rickard E. (Rik) Faith <faith@valinux.com>
  28  *          Jeff Hartmann <jhartmann@valinux.com>
  29  *          Keith Whitwell <keith@tungstengraphics.com>
  30  *
  31  */
  32
  33 #include "drmP.h"
  34 #include "drm.h"
  35 #include "i810_drm.h"
  36 #include "i810_drv.h"
  37 #include <linux/interrupt.h>    /* For task queue support */
  38 #include <linux/delay.h>
  39 #include <linux/slab.h>
  40 #include <linux/pagemap.h>
  41
  42 #define I810_BUF_FREE           2
  43 #define I810_BUF_CLIENT         1
  44 #define I810_BUF_HARDWARE       0
  45
  46 #define I810_BUF_UNMAPPED 0
  47 #define I810_BUF_MAPPED   1
  48
  49 static struct drm_buf *i810_freelist_get(struct drm_device * dev)
  50 {
  51         struct drm_device_dma *dma = dev->dma;
  52         int i;
  53         int used;
  54
  55         /* Linear search might not be the best solution */
  56
  57         for (i = 0; i < dma->buf_count; i++) {
  58                 struct drm_buf *buf = dma->buflist[i];
  59                 drm_i810_buf_priv_t *buf_priv = buf->dev_private;
  60                 /* In use is already a pointer */
  61                 used = cmpxchg(buf_priv->in_use, I810_BUF_FREE,
  62                                I810_BUF_CLIENT);
  63                 if (used == I810_BUF_FREE)
  64                         return buf;
  65         }
  66         return NULL;
  67 }
  68
  69 /* This should only be called if the buffer is not sent to the hardware
  70  * yet, the hardware updates in use for us once its on the ring buffer.
  71  */
  72
  73 static int i810_freelist_put(struct drm_device *dev, struct drm_buf *buf)
  74 {
  75         drm_i810_buf_priv_t *buf_priv = buf->dev_private;
  76         int used;
  77
  78         /* In use is already a pointer */
  79         used = cmpxchg(buf_priv->in_use, I810_BUF_CLIENT, I810_BUF_FREE);
  80         if (used != I810_BUF_CLIENT) {
  81                 DRM_ERROR("Freeing buffer thats not in use : %d\n", buf->idx);
  82                 return -EINVAL;
  83         }
  84
  85         return 0;
  86 }
  87
  88 static int i810_mmap_buffers(struct file *filp, struct vm_area_struct *vma)
  89 {
  90         struct drm_file *priv = filp->private_data;
  91         struct drm_device *dev;
  92         drm_i810_private_t *dev_priv;
  93         struct drm_buf *buf;
  94         drm_i810_buf_priv_t *buf_priv;
  95
  96         dev = priv->minor->dev;
  97         dev_priv = dev->dev_private;
  98         buf = dev_priv->mmap_buffer;
  99         buf_priv = buf->dev_private;
 100
 101         vma->vm_flags |= (VM_IO | VM_DONTCOPY);
 102         vma->vm_file = filp;
 103
 104         buf_priv->currently_mapped = I810_BUF_MAPPED;
 105
 106         if (io_remap_pfn_range(vma, vma->vm_start,
 107                                vma->vm_pgoff,
 108                                vma->vm_end - vma->vm_start, vma->vm_page_prot))
 109                 return -EAGAIN;
 110         return 0;
 111 }
 112
 113 static const struct file_operations i810_buffer_fops = {
 114         .open = drm_open,
 115         .release = drm_release,
 116         .unlocked_ioctl = drm_ioctl,
 117         .mmap = i810_mmap_buffers,
 118         .fasync = drm_fasync,
 119         .llseek = noop_llseek,
 120 };
 121
 122 static int i810_map_buffer(struct drm_buf *buf, struct drm_file *file_priv)
 123 {
 124         struct drm_device *dev = file_priv->minor->dev;
 125         drm_i810_buf_priv_t *buf_priv = buf->dev_private;
 126         drm_i810_private_t *dev_priv = dev->dev_private;
 127         const struct file_operations *old_fops;
 128         int retcode = 0;
 129
 130         if (buf_priv->currently_mapped == I810_BUF_MAPPED)
 131                 return -EINVAL;
 132
 133         down_write(&current->mm->mmap_sem);
 134         old_fops = file_priv->filp->f_op;
 135         file_priv->filp->f_op = &i810_buffer_fops;
 136         dev_priv->mmap_buffer = buf;
 137         buf_priv->virtual = (void *)do_mmap(file_priv->filp, 0, buf->total,
 138                                             PROT_READ | PROT_WRITE,
 139                                             MAP_SHARED, buf->bus_address);
 140         dev_priv->mmap_buffer = NULL;
 141         file_priv->filp->f_op = old_fops;
 142         if (IS_ERR(buf_priv->virtual)) {
 143                 /* Real error */
 144                 DRM_ERROR("mmap error\n");
 145                 retcode = PTR_ERR(buf_priv->virtual);
 146                 buf_priv->virtual = NULL;
 147         }
 148         up_write(&current->mm->mmap_sem);
 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         down_write(&current->mm->mmap_sem);
 162         retcode = do_munmap(current->mm,
 163                             (unsigned long)buf_priv->virtual,
 164                             (size_t) buf->total);
 165         up_write(&current->mm->mmap_sem);
 166
 167         buf_priv->currently_mapped = I810_BUF_UNMAPPED;
 168         buf_priv->virtual = NULL;
 169
 170         return retcode;
 171 }
 172
 173 static int i810_dma_get_buffer(struct drm_device *dev, drm_i810_dma_t *d,
 174                                struct drm_file *file_priv)
 175 {
 176         struct drm_buf *buf;
 177         drm_i810_buf_priv_t *buf_priv;
 178         int retcode = 0;
 179
 180         buf = i810_freelist_get(dev);
 181         if (!buf) {
 182                 retcode = -ENOMEM;
 183                 DRM_DEBUG("retcode=%d\n", retcode);
 184                 return retcode;
 185         }
 186
 187         retcode = i810_map_buffer(buf, file_priv);
 188         if (retcode) {
 189                 i810_freelist_put(dev, buf);
 190                 DRM_ERROR("mapbuf failed, retcode %d\n", retcode);
 191                 return retcode;
 192         }
 193         buf->file_priv = file_priv;
 194         buf_priv = buf->dev_private;
 195         d->granted = 1;
 196         d->request_idx = buf->idx;
 197         d->request_size = buf->total;
 198         d->virtual = buf_priv->virtual;
 199
 200         return retcode;
 201 }
 202
 203 static int i810_dma_cleanup(struct drm_device *dev)
 204 {
 205         struct drm_device_dma *dma = dev->dma;
 206
 207         /* Make sure interrupts are disabled here because the uninstall ioctl
 208          * may not have been called from userspace and after dev_private
 209          * is freed, it's too late.
 210          */
 211         if (drm_core_check_feature(dev, DRIVER_HAVE_IRQ) && dev->irq_enabled)
 212                 drm_irq_uninstall(dev);
 213
 214         if (dev->dev_private) {
 215                 int i;
 216                 drm_i810_private_t *dev_priv =
 217                     (drm_i810_private_t *) dev->dev_private;
 218
 219                 if (dev_priv->ring.virtual_start)
 220                         drm_core_ioremapfree(&dev_priv->ring.map, dev);
 221                 if (dev_priv->hw_status_page) {
 222                         pci_free_consistent(dev->pdev, PAGE_SIZE,
 223                                             dev_priv->hw_status_page,
 224                                             dev_priv->dma_status_page);
 225                         /* Need to rewrite hardware status page */
 226                         I810_WRITE(0x02080, 0x1ffff000);
 227                 }
 228                 kfree(dev->dev_private);
 229                 dev->dev_private = NULL;
 230
 231                 for (i = 0; i < dma->buf_count; i++) {
 232                         struct drm_buf *buf = dma->buflist[i];
 233                         drm_i810_buf_priv_t *buf_priv = buf->dev_private;
 234
 235                         if (buf_priv->kernel_virtual && buf->total)
 236                                 drm_core_ioremapfree(&buf_priv->map, dev);
 237                 }
 238         }
 239         return 0;
 240 }
 241
 242 static int i810_wait_ring(struct drm_device *dev, int n)
 243 {
 244         drm_i810_private_t *dev_priv = dev->dev_private;
 245         drm_i810_ring_buffer_t *ring = &(dev_priv->ring);
 246         int iters = 0;
 247         unsigned long end;
 248         unsigned int last_head = I810_READ(LP_RING + RING_HEAD) & HEAD_ADDR;
 249
 250         end = jiffies + (HZ * 3);
 251         while (ring->space < n) {
 252                 ring->head = I810_READ(LP_RING + RING_HEAD) & HEAD_ADDR;
 253                 ring->space = ring->head - (ring->tail + 8);
 254                 if (ring->space < 0)
 255                         ring->space += ring->Size;
 256
 257                 if (ring->head != last_head) {
 258                         end = jiffies + (HZ * 3);
 259                         last_head = ring->head;
 260                 }
 261
 262                 iters++;
 263                 if (time_before(end, jiffies)) {
 264                         DRM_ERROR("space: %d wanted %d\n", ring->space, n);
 265                         DRM_ERROR("lockup\n");
 266                         goto out_wait_ring;
 267                 }
 268                 udelay(1);
 269         }
 270
 271 out_wait_ring:
 272         return iters;
 273 }
 274
 275 static void i810_kernel_lost_context(struct drm_device *dev)
 276 {
 277         drm_i810_private_t *dev_priv = dev->dev_private;
 278         drm_i810_ring_buffer_t *ring = &(dev_priv->ring);
 279
 280         ring->head = I810_READ(LP_RING + RING_HEAD) & HEAD_ADDR;
 281         ring->tail = I810_READ(LP_RING + RING_TAIL);
 282         ring->space = ring->head - (ring->tail + 8);
 283         if (ring->space < 0)
 284                 ring->space += ring->Size;
 285 }
 286
 287 static int i810_freelist_init(struct drm_device *dev, drm_i810_private_t *dev_priv)
 288 {
 289         struct drm_device_dma *dma = dev->dma;
 290         int my_idx = 24;
 291         u32 *hw_status = (u32 *) (dev_priv->hw_status_page + my_idx);
 292         int i;
 293
 294         if (dma->buf_count > 1019) {
 295                 /* Not enough space in the status page for the freelist */
 296                 return -EINVAL;
 297         }
 298
 299         for (i = 0; i < dma->buf_count; i++) {
 300                 struct drm_buf *buf = dma->buflist[i];
 301                 drm_i810_buf_priv_t *buf_priv = buf->dev_private;
 302
 303                 buf_priv->in_use = hw_status++;
 304                 buf_priv->my_use_idx = my_idx;
 305                 my_idx += 4;
 306
 307                 *buf_priv->in_use = I810_BUF_FREE;
 308
 309                 buf_priv->map.offset = buf->bus_address;
 310                 buf_priv->map.size = buf->total;
 311                 buf_priv->map.type = _DRM_AGP;
 312                 buf_priv->map.flags = 0;
 313                 buf_priv->map.mtrr = 0;
 314
 315                 drm_core_ioremap(&buf_priv->map, dev);
 316                 buf_priv->kernel_virtual = buf_priv->map.handle;
 317
 318         }
 319         return 0;
 320 }
 321
 322 static int i810_dma_initialize(struct drm_device *dev,
 323                                drm_i810_private_t *dev_priv,
 324                                drm_i810_init_t *init)
 325 {
 326         struct drm_map_list *r_list;
 327         memset(dev_priv, 0, sizeof(drm_i810_private_t));
 328
 329         list_for_each_entry(r_list, &dev->maplist, head) {
 330                 if (r_list->map &&
 331                     r_list->map->type == _DRM_SHM &&
 332                     r_list->map->flags & _DRM_CONTAINS_LOCK) {
 333                         dev_priv->sarea_map = r_list->map;
 334                         break;
 335                 }
 336         }
 337         if (!dev_priv->sarea_map) {
 338                 dev->dev_private = (void *)dev_priv;
 339                 i810_dma_cleanup(dev);
 340                 DRM_ERROR("can not find sarea!\n");
 341                 return -EINVAL;
 342         }
 343         dev_priv->mmio_map = drm_core_findmap(dev, init->mmio_offset);
 344         if (!dev_priv->mmio_map) {
 345                 dev->dev_private = (void *)dev_priv;
 346                 i810_dma_cleanup(dev);
 347                 DRM_ERROR("can not find mmio map!\n");
 348                 return -EINVAL;
 349         }
 350         dev->agp_buffer_token = init->buffers_offset;
 351         dev->agp_buffer_map = drm_core_findmap(dev, init->buffers_offset);
 352         if (!dev->agp_buffer_map) {
 353                 dev->dev_private = (void *)dev_priv;
 354                 i810_dma_cleanup(dev);
 355                 DRM_ERROR("can not find dma buffer map!\n");
 356                 return -EINVAL;
 357         }
 358
 359         dev_priv->sarea_priv = (drm_i810_sarea_t *)
 360             ((u8 *) dev_priv->sarea_map->handle + init->sarea_priv_offset);
 361
 362         dev_priv->ring.Start = init->ring_start;
 363         dev_priv->ring.End = init->ring_end;
 364         dev_priv->ring.Size = init->ring_size;
 365
 366         dev_priv->ring.map.offset = dev->agp->base + init->ring_start;
 367         dev_priv->ring.map.size = init->ring_size;
 368         dev_priv->ring.map.type = _DRM_AGP;
 369         dev_priv->ring.map.flags = 0;
 370         dev_priv->ring.map.mtrr = 0;
 371
 372         drm_core_ioremap(&dev_priv->ring.map, dev);
 373
 374         if (dev_priv->ring.map.handle == NULL) {
 375                 dev->dev_private = (void *)dev_priv;
 376                 i810_dma_cleanup(dev);
 377                 DRM_ERROR("can not ioremap virtual address for"
 378                           " ring buffer\n");
 379                 return -ENOMEM;
 380         }
 381
 382         dev_priv->ring.virtual_start = dev_priv->ring.map.handle;
 383
 384         dev_priv->ring.tail_mask = dev_priv->ring.Size - 1;
 385
 386         dev_priv->w = init->w;
 387         dev_priv->h = init->h;
 388         dev_priv->pitch = init->pitch;
 389         dev_priv->back_offset = init->back_offset;
 390         dev_priv->depth_offset = init->depth_offset;
 391         dev_priv->front_offset = init->front_offset;
 392
 393         dev_priv->overlay_offset = init->overlay_offset;
 394         dev_priv->overlay_physical = init->overlay_physical;
 395
 396         dev_priv->front_di1 = init->front_offset | init->pitch_bits;
 397         dev_priv->back_di1 = init->back_offset | init->pitch_bits;
 398         dev_priv->zi1 = init->depth_offset | init->pitch_bits;
 399
 400         /* Program Hardware Status Page */
 401         dev_priv->hw_status_page =
 402             pci_alloc_consistent(dev->pdev, PAGE_SIZE,
 403                                  &dev_priv->dma_status_page);
 404         if (!dev_priv->hw_status_page) {
 405                 dev->dev_private = (void *)dev_priv;
 406                 i810_dma_cleanup(dev);
 407                 DRM_ERROR("Can not allocate hardware status page\n");
 408                 return -ENOMEM;
 409         }
 410         memset(dev_priv->hw_status_page, 0, PAGE_SIZE);
 411         DRM_DEBUG("hw status page @ %p\n", dev_priv->hw_status_page);
 412
 413         I810_WRITE(0x02080, dev_priv->dma_status_page);
 414         DRM_DEBUG("Enabled hardware status page\n");
 415
 416         /* Now we need to init our freelist */
 417         if (i810_freelist_init(dev, dev_priv) != 0) {
 418                 dev->dev_private = (void *)dev_priv;
 419                 i810_dma_cleanup(dev);
 420                 DRM_ERROR("Not enough space in the status page for"
 421                           " the freelist\n");
 422                 return -ENOMEM;
 423         }
 424         dev->dev_private = (void *)dev_priv;
 425
 426         return 0;
 427 }
 428
 429 static int i810_dma_init(struct drm_device *dev, void *data,
 430                          struct drm_file *file_priv)
 431 {
 432         drm_i810_private_t *dev_priv;
 433         drm_i810_init_t *init = data;
 434         int retcode = 0;
 435
 436         switch (init->func) {
 437         case I810_INIT_DMA_1_4:
 438                 DRM_INFO("Using v1.4 init.\n");
 439                 dev_priv = kmalloc(sizeof(drm_i810_private_t), GFP_KERNEL);
 440                 if (dev_priv == NULL)
 441                         return -ENOMEM;
 442                 retcode = i810_dma_initialize(dev, dev_priv, init);
 443                 break;
 444
 445         case I810_CLEANUP_DMA:
 446                 DRM_INFO("DMA Cleanup\n");
 447                 retcode = i810_dma_cleanup(dev);
 448                 break;
 449         default:
 450                 return -EINVAL;
 451         }
 452
 453         return retcode;
 454 }
 455
 456 /* Most efficient way to verify state for the i810 is as it is
 457  * emitted.  Non-conformant state is silently dropped.
 458  *
 459  * Use 'volatile' & local var tmp to force the emitted values to be
 460  * identical to the verified ones.
 461  */
 462 static void i810EmitContextVerified(struct drm_device *dev,
 463                                     volatile unsigned int *code)
 464 {
 465         drm_i810_private_t *dev_priv = dev->dev_private;
 466         int i, j = 0;
 467         unsigned int tmp;
 468         RING_LOCALS;
 469
 470         BEGIN_LP_RING(I810_CTX_SETUP_SIZE);
 471
 472         OUT_RING(GFX_OP_COLOR_FACTOR);
 473         OUT_RING(code[I810_CTXREG_CF1]);
 474
 475         OUT_RING(GFX_OP_STIPPLE);
 476         OUT_RING(code[I810_CTXREG_ST1]);
 477
 478         for (i = 4; i < I810_CTX_SETUP_SIZE; i++) {
 479                 tmp = code[i];
 480
 481                 if ((tmp & (7 << 29)) == (3 << 29) &&
 482                     (tmp & (0x1f << 24)) < (0x1d << 24)) {
 483                         OUT_RING(tmp);
 484                         j++;
 485                 } else
 486                         printk("constext state dropped!!!\n");
 487         }
 488
 489         if (j & 1)
 490                 OUT_RING(0);
 491
 492         ADVANCE_LP_RING();
 493 }
 494
 495 static void i810EmitTexVerified(struct drm_device *dev, volatile unsigned int *code)
 496 {
 497         drm_i810_private_t *dev_priv = dev->dev_private;
 498         int i, j = 0;
 499         unsigned int tmp;
 500         RING_LOCALS;
 501
 502         BEGIN_LP_RING(I810_TEX_SETUP_SIZE);
 503
 504         OUT_RING(GFX_OP_MAP_INFO);
 505         OUT_RING(code[I810_TEXREG_MI1]);
 506         OUT_RING(code[I810_TEXREG_MI2]);
 507         OUT_RING(code[I810_TEXREG_MI3]);
 508
 509         for (i = 4; i < I810_TEX_SETUP_SIZE; i++) {
 510                 tmp = code[i];
 511
 512                 if ((tmp & (7 << 29)) == (3 << 29) &&
 513                     (tmp & (0x1f << 24)) < (0x1d << 24)) {
 514                         OUT_RING(tmp);
 515                         j++;
 516                 } else
 517                         printk("texture state dropped!!!\n");
 518         }
 519
 520         if (j & 1)
 521                 OUT_RING(0);
 522
 523         ADVANCE_LP_RING();
 524 }
 525
 526 /* Need to do some additional checking when setting the dest buffer.
 527  */
 528 static void i810EmitDestVerified(struct drm_device *dev,
 529                                  volatile unsigned int *code)
 530 {
 531         drm_i810_private_t *dev_priv = dev->dev_private;
 532         unsigned int tmp;
 533         RING_LOCALS;
 534
 535         BEGIN_LP_RING(I810_DEST_SETUP_SIZE + 2);
 536
 537         tmp = code[I810_DESTREG_DI1];
 538         if (tmp == dev_priv->front_di1 || tmp == dev_priv->back_di1) {
 539                 OUT_RING(CMD_OP_DESTBUFFER_INFO);
 540                 OUT_RING(tmp);
 541         } else
 542                 DRM_DEBUG("bad di1 %x (allow %x or %x)\n",
 543                           tmp, dev_priv->front_di1, dev_priv->back_di1);
 544
 545         /* invarient:
 546          */
 547         OUT_RING(CMD_OP_Z_BUFFER_INFO);
 548         OUT_RING(dev_priv->zi1);
 549
 550         OUT_RING(GFX_OP_DESTBUFFER_VARS);
 551         OUT_RING(code[I810_DESTREG_DV1]);
 552
 553         OUT_RING(GFX_OP_DRAWRECT_INFO);
 554         OUT_RING(code[I810_DESTREG_DR1]);
 555         OUT_RING(code[I810_DESTREG_DR2]);
 556         OUT_RING(code[I810_DESTREG_DR3]);
 557         OUT_RING(code[I810_DESTREG_DR4]);
 558         OUT_RING(0);
 559
 560         ADVANCE_LP_RING();
 561 }
 562
 563 static void i810EmitState(struct drm_device *dev)
 564 {
 565         drm_i810_private_t *dev_priv = dev->dev_private;
 566         drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
 567         unsigned int dirty = sarea_priv->dirty;
 568
 569         DRM_DEBUG("%x\n", dirty);
 570
 571         if (dirty & I810_UPLOAD_BUFFERS) {
 572                 i810EmitDestVerified(dev, sarea_priv->BufferState);
 573                 sarea_priv->dirty &= ~I810_UPLOAD_BUFFERS;
 574         }
 575
 576         if (dirty & I810_UPLOAD_CTX) {
 577                 i810EmitContextVerified(dev, sarea_priv->ContextState);
 578                 sarea_priv->dirty &= ~I810_UPLOAD_CTX;
 579         }
 580
 581         if (dirty & I810_UPLOAD_TEX0) {
 582                 i810EmitTexVerified(dev, sarea_priv->TexState[0]);
 583                 sarea_priv->dirty &= ~I810_UPLOAD_TEX0;
 584         }
 585
 586         if (dirty & I810_UPLOAD_TEX1) {
 587                 i810EmitTexVerified(dev, sarea_priv->TexState[1]);
 588                 sarea_priv->dirty &= ~I810_UPLOAD_TEX1;
 589         }
 590 }
 591
 592 /* need to verify
 593  */
 594 static void i810_dma_dispatch_clear(struct drm_device *dev, int flags,
 595                                     unsigned int clear_color,
 596                                     unsigned int clear_zval)
 597 {
 598         drm_i810_private_t *dev_priv = dev->dev_private;
 599         drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
 600         int nbox = sarea_priv->nbox;
 601         struct drm_clip_rect *pbox = sarea_priv->boxes;
 602         int pitch = dev_priv->pitch;
 603         int cpp = 2;
 604         int i;
 605         RING_LOCALS;
 606
 607         if (dev_priv->current_page == 1) {
 608                 unsigned int tmp = flags;
 609
 610                 flags &= ~(I810_FRONT | I810_BACK);
 611                 if (tmp & I810_FRONT)
 612                         flags |= I810_BACK;
 613                 if (tmp & I810_BACK)
 614                         flags |= I810_FRONT;
 615         }
 616
 617         i810_kernel_lost_context(dev);
 618
 619         if (nbox > I810_NR_SAREA_CLIPRECTS)
 620                 nbox = I810_NR_SAREA_CLIPRECTS;
 621
 622         for (i = 0; i < nbox; i++, pbox++) {
 623                 unsigned int x = pbox->x1;
 624                 unsigned int y = pbox->y1;
 625                 unsigned int width = (pbox->x2 - x) * cpp;
 626                 unsigned int height = pbox->y2 - y;
 627                 unsigned int start = y * pitch + x * cpp;
 628
 629                 if (pbox->x1 > pbox->x2 ||
 630                     pbox->y1 > pbox->y2 ||
 631                     pbox->x2 > dev_priv->w || pbox->y2 > dev_priv->h)
 632                         continue;
 633
 634                 if (flags & I810_FRONT) {
 635                         BEGIN_LP_RING(6);
 636                         OUT_RING(BR00_BITBLT_CLIENT | BR00_OP_COLOR_BLT | 0x3);
 637                         OUT_RING(BR13_SOLID_PATTERN | (0xF0 << 16) | pitch);
 638                         OUT_RING((height << 16) | width);
 639                         OUT_RING(start);
 640                         OUT_RING(clear_color);
 641                         OUT_RING(0);
 642                         ADVANCE_LP_RING();
 643                 }
 644
 645                 if (flags & I810_BACK) {
 646                         BEGIN_LP_RING(6);
 647                         OUT_RING(BR00_BITBLT_CLIENT | BR00_OP_COLOR_BLT | 0x3);
 648                         OUT_RING(BR13_SOLID_PATTERN | (0xF0 << 16) | pitch);
 649                         OUT_RING((height << 16) | width);
 650                         OUT_RING(dev_priv->back_offset + start);
 651                         OUT_RING(clear_color);
 652                         OUT_RING(0);
 653                         ADVANCE_LP_RING();
 654                 }
 655
 656                 if (flags & I810_DEPTH) {
 657                         BEGIN_LP_RING(6);
 658                         OUT_RING(BR00_BITBLT_CLIENT | BR00_OP_COLOR_BLT | 0x3);
 659                         OUT_RING(BR13_SOLID_PATTERN | (0xF0 << 16) | pitch);
 660                         OUT_RING((height << 16) | width);
 661                         OUT_RING(dev_priv->depth_offset + start);
 662                         OUT_RING(clear_zval);
 663                         OUT_RING(0);
 664                         ADVANCE_LP_RING();
 665                 }
 666         }
 667 }
 668
 669 static void i810_dma_dispatch_swap(struct drm_device *dev)
 670 {
 671         drm_i810_private_t *dev_priv = dev->dev_private;
 672         drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
 673         int nbox = sarea_priv->nbox;
 674         struct drm_clip_rect *pbox = sarea_priv->boxes;
 675         int pitch = dev_priv->pitch;
 676         int cpp = 2;
 677         int i;
 678         RING_LOCALS;
 679
 680         DRM_DEBUG("swapbuffers\n");
 681
 682         i810_kernel_lost_context(dev);
 683
 684         if (nbox > I810_NR_SAREA_CLIPRECTS)
 685                 nbox = I810_NR_SAREA_CLIPRECTS;
 686
 687         for (i = 0; i < nbox; i++, pbox++) {
 688                 unsigned int w = pbox->x2 - pbox->x1;
 689                 unsigned int h = pbox->y2 - pbox->y1;
 690                 unsigned int dst = pbox->x1 * cpp + pbox->y1 * pitch;
 691                 unsigned int start = dst;
 692
 693                 if (pbox->x1 > pbox->x2 ||
 694                     pbox->y1 > pbox->y2 ||
 695                     pbox->x2 > dev_priv->w || pbox->y2 > dev_priv->h)
 696                         continue;
 697
 698                 BEGIN_LP_RING(6);
 699                 OUT_RING(BR00_BITBLT_CLIENT | BR00_OP_SRC_COPY_BLT | 0x4);
 700                 OUT_RING(pitch | (0xCC << 16));
 701                 OUT_RING((h << 16) | (w * cpp));
 702                 if (dev_priv->current_page == 0)
 703                         OUT_RING(dev_priv->front_offset + start);
 704                 else
 705                         OUT_RING(dev_priv->back_offset + start);
 706                 OUT_RING(pitch);
 707                 if (dev_priv->current_page == 0)
 708                         OUT_RING(dev_priv->back_offset + start);
 709                 else
 710                         OUT_RING(dev_priv->front_offset + start);
 711                 ADVANCE_LP_RING();
 712         }
 713 }
 714
 715 static void i810_dma_dispatch_vertex(struct drm_device *dev,
 716                                      struct drm_buf *buf, int discard, int used)
 717 {
 718         drm_i810_private_t *dev_priv = dev->dev_private;
 719         drm_i810_buf_priv_t *buf_priv = buf->dev_private;
 720         drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
 721         struct drm_clip_rect *box = sarea_priv->boxes;
 722         int nbox = sarea_priv->nbox;
 723         unsigned long address = (unsigned long)buf->bus_address;
 724         unsigned long start = address - dev->agp->base;
 725         int i = 0;
 726         RING_LOCALS;
 727
 728         i810_kernel_lost_context(dev);
 729
 730         if (nbox > I810_NR_SAREA_CLIPRECTS)
 731                 nbox = I810_NR_SAREA_CLIPRECTS;
 732
 733         if (used > 4 * 1024)
 734                 used = 0;
 735
 736         if (sarea_priv->dirty)
 737                 i810EmitState(dev);
 738
 739         if (buf_priv->currently_mapped == I810_BUF_MAPPED) {
 740                 unsigned int prim = (sarea_priv->vertex_prim & PR_MASK);
 741
 742                 *(u32 *) buf_priv->kernel_virtual =
 743                     ((GFX_OP_PRIMITIVE | prim | ((used / 4) - 2)));
 744
 745                 if (used & 4) {
 746                         *(u32 *) ((char *) buf_priv->kernel_virtual + used) = 0;
 747                         used += 4;
 748                 }
 749
 750                 i810_unmap_buffer(buf);
 751         }
 752
 753         if (used) {
 754                 do {
 755                         if (i < nbox) {
 756                                 BEGIN_LP_RING(4);
 757                                 OUT_RING(GFX_OP_SCISSOR | SC_UPDATE_SCISSOR |
 758                                          SC_ENABLE);
 759                                 OUT_RING(GFX_OP_SCISSOR_INFO);
 760                                 OUT_RING(box[i].x1 | (box[i].y1 << 16));
 761                                 OUT_RING((box[i].x2 -
 762                                           1) | ((box[i].y2 - 1) << 16));
 763                                 ADVANCE_LP_RING();
 764                         }
 765
 766                         BEGIN_LP_RING(4);
 767                         OUT_RING(CMD_OP_BATCH_BUFFER);
 768                         OUT_RING(start | BB1_PROTECTED);
 769                         OUT_RING(start + used - 4);
 770                         OUT_RING(0);
 771                         ADVANCE_LP_RING();
 772
 773                 } while (++i < nbox);
 774         }
 775
 776         if (discard) {
 777                 dev_priv->counter++;
 778
 779                 (void)cmpxchg(buf_priv->in_use, I810_BUF_CLIENT,
 780                               I810_BUF_HARDWARE);
 781
 782                 BEGIN_LP_RING(8);
 783                 OUT_RING(CMD_STORE_DWORD_IDX);
 784                 OUT_RING(20);
 785                 OUT_RING(dev_priv->counter);
 786                 OUT_RING(CMD_STORE_DWORD_IDX);
 787                 OUT_RING(buf_priv->my_use_idx);
 788                 OUT_RING(I810_BUF_FREE);
 789                 OUT_RING(CMD_REPORT_HEAD);
 790                 OUT_RING(0);
 791                 ADVANCE_LP_RING();
 792         }
 793 }
 794
 795 static void i810_dma_dispatch_flip(struct drm_device *dev)
 796 {
 797         drm_i810_private_t *dev_priv = dev->dev_private;
 798         int pitch = dev_priv->pitch;
 799         RING_LOCALS;
 800
 801         DRM_DEBUG("page=%d pfCurrentPage=%d\n",
 802                   dev_priv->current_page,
 803                   dev_priv->sarea_priv->pf_current_page);
 804
 805         i810_kernel_lost_context(dev);
 806
 807         BEGIN_LP_RING(2);
 808         OUT_RING(INST_PARSER_CLIENT | INST_OP_FLUSH | INST_FLUSH_MAP_CACHE);
 809         OUT_RING(0);
 810         ADVANCE_LP_RING();
 811
 812         BEGIN_LP_RING(I810_DEST_SETUP_SIZE + 2);
 813         /* On i815 at least ASYNC is buggy */
 814         /* pitch<<5 is from 11.2.8 p158,
 815            its the pitch / 8 then left shifted 8,
 816            so (pitch >> 3) << 8 */
 817         OUT_RING(CMD_OP_FRONTBUFFER_INFO | (pitch << 5) /*| ASYNC_FLIP */ );
 818         if (dev_priv->current_page == 0) {
 819                 OUT_RING(dev_priv->back_offset);
 820                 dev_priv->current_page = 1;
 821         } else {
 822                 OUT_RING(dev_priv->front_offset);
 823                 dev_priv->current_page = 0;
 824         }
 825         OUT_RING(0);
 826         ADVANCE_LP_RING();
 827
 828         BEGIN_LP_RING(2);
 829         OUT_RING(CMD_OP_WAIT_FOR_EVENT | WAIT_FOR_PLANE_A_FLIP);
 830         OUT_RING(0);
 831         ADVANCE_LP_RING();
 832
 833         /* Increment the frame counter.  The client-side 3D driver must
 834          * throttle the framerate by waiting for this value before
 835          * performing the swapbuffer ioctl.
 836          */
 837         dev_priv->sarea_priv->pf_current_page = dev_priv->current_page;
 838
 839 }
 840
 841 static void i810_dma_quiescent(struct drm_device *dev)
 842 {
 843         drm_i810_private_t *dev_priv = dev->dev_private;
 844         RING_LOCALS;
 845
 846         i810_kernel_lost_context(dev);
 847
 848         BEGIN_LP_RING(4);
 849         OUT_RING(INST_PARSER_CLIENT | INST_OP_FLUSH | INST_FLUSH_MAP_CACHE);
 850         OUT_RING(CMD_REPORT_HEAD);
 851         OUT_RING(0);
 852         OUT_RING(0);
 853         ADVANCE_LP_RING();
 854
 855         i810_wait_ring(dev, dev_priv->ring.Size - 8);
 856 }
 857
 858 static int i810_flush_queue(struct drm_device *dev)
 859 {
 860         drm_i810_private_t *dev_priv = dev->dev_private;
 861         struct drm_device_dma *dma = dev->dma;
 862         int i, ret = 0;
 863         RING_LOCALS;
 864
 865         i810_kernel_lost_context(dev);
 866
 867         BEGIN_LP_RING(2);
 868         OUT_RING(CMD_REPORT_HEAD);
 869         OUT_RING(0);
 870         ADVANCE_LP_RING();
 871
 872         i810_wait_ring(dev, dev_priv->ring.Size - 8);
 873
 874         for (i = 0; i < dma->buf_count; i++) {
 875                 struct drm_buf *buf = dma->buflist[i];
 876                 drm_i810_buf_priv_t *buf_priv = buf->dev_private;
 877
 878                 int used = cmpxchg(buf_priv->in_use, I810_BUF_HARDWARE,
 879                                    I810_BUF_FREE);
 880
 881                 if (used == I810_BUF_HARDWARE)
 882                         DRM_DEBUG("reclaimed from HARDWARE\n");
 883                 if (used == I810_BUF_CLIENT)
 884                         DRM_DEBUG("still on client\n");
 885         }
 886
 887         return ret;
 888 }
 889
 890 /* Must be called with the lock held */
 891 static void i810_reclaim_buffers(struct drm_device *dev,
 892                                  struct drm_file *file_priv)
 893 {
 894         struct drm_device_dma *dma = dev->dma;
 895         int i;
 896
 897         if (!dma)
 898                 return;
 899         if (!dev->dev_private)
 900                 return;
 901         if (!dma->buflist)
 902                 return;
 903
 904         i810_flush_queue(dev);
 905
 906         for (i = 0; i < dma->buf_count; i++) {
 907                 struct drm_buf *buf = dma->buflist[i];
 908                 drm_i810_buf_priv_t *buf_priv = buf->dev_private;
 909
 910                 if (buf->file_priv == file_priv && buf_priv) {
 911                         int used = cmpxchg(buf_priv->in_use, I810_BUF_CLIENT,
 912                                            I810_BUF_FREE);
 913
 914                         if (used == I810_BUF_CLIENT)
 915                                 DRM_DEBUG("reclaimed from client\n");
 916                         if (buf_priv->currently_mapped == I810_BUF_MAPPED)
 917                                 buf_priv->currently_mapped = I810_BUF_UNMAPPED;
 918                 }
 919         }
 920 }
 921
 922 static int i810_flush_ioctl(struct drm_device *dev, void *data,
 923                             struct drm_file *file_priv)
 924 {
 925         LOCK_TEST_WITH_RETURN(dev, file_priv);
 926
 927         i810_flush_queue(dev);
 928         return 0;
 929 }
 930
 931 static int i810_dma_vertex(struct drm_device *dev, void *data,
 932                            struct drm_file *file_priv)
 933 {
 934         struct drm_device_dma *dma = dev->dma;
 935         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
 936         u32 *hw_status = dev_priv->hw_status_page;
 937         drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
 938             dev_priv->sarea_priv;
 939         drm_i810_vertex_t *vertex = data;
 940
 941         LOCK_TEST_WITH_RETURN(dev, file_priv);
 942
 943         DRM_DEBUG("idx %d used %d discard %d\n",
 944                   vertex->idx, vertex->used, vertex->discard);
 945
 946         if (vertex->idx < 0 || vertex->idx > dma->buf_count)
 947                 return -EINVAL;
 948
 949         i810_dma_dispatch_vertex(dev,
 950                                  dma->buflist[vertex->idx],
 951                                  vertex->discard, vertex->used);
 952
 953         atomic_add(vertex->used, &dev->counts[_DRM_STAT_SECONDARY]);
 954         atomic_inc(&dev->counts[_DRM_STAT_DMA]);
 955         sarea_priv->last_enqueue = dev_priv->counter - 1;
 956         sarea_priv->last_dispatch = (int)hw_status[5];
 957
 958         return 0;
 959 }
 960
 961 static int i810_clear_bufs(struct drm_device *dev, void *data,
 962                            struct drm_file *file_priv)
 963 {
 964         drm_i810_clear_t *clear = data;
 965
 966         LOCK_TEST_WITH_RETURN(dev, file_priv);
 967
 968         /* GH: Someone's doing nasty things... */
 969         if (!dev->dev_private)
 970                 return -EINVAL;
 971
 972         i810_dma_dispatch_clear(dev, clear->flags,
 973                                 clear->clear_color, clear->clear_depth);
 974         return 0;
 975 }
 976
 977 static int i810_swap_bufs(struct drm_device *dev, void *data,
 978                           struct drm_file *file_priv)
 979 {
 980         DRM_DEBUG("\n");
 981
 982         LOCK_TEST_WITH_RETURN(dev, file_priv);
 983
 984         i810_dma_dispatch_swap(dev);
 985         return 0;
 986 }
 987
 988 static int i810_getage(struct drm_device *dev, void *data,
 989                        struct drm_file *file_priv)
 990 {
 991         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
 992         u32 *hw_status = dev_priv->hw_status_page;
 993         drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
 994             dev_priv->sarea_priv;
 995
 996         sarea_priv->last_dispatch = (int)hw_status[5];
 997         return 0;
 998 }
 999
1000 static int i810_getbuf(struct drm_device *dev, void *data,
1001                        struct drm_file *file_priv)
1002 {
1003         int retcode = 0;
1004         drm_i810_dma_t *d = data;
1005         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1006         u32 *hw_status = dev_priv->hw_status_page;
1007         drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
1008             dev_priv->sarea_priv;
1009
1010         LOCK_TEST_WITH_RETURN(dev, file_priv);
1011
1012         d->granted = 0;
1013
1014         retcode = i810_dma_get_buffer(dev, d, file_priv);
1015
1016         DRM_DEBUG("i810_dma: %d returning %d, granted = %d\n",
1017                   task_pid_nr(current), retcode, d->granted);
1018
1019         sarea_priv->last_dispatch = (int)hw_status[5];
1020
1021         return retcode;
1022 }
1023
1024 static int i810_copybuf(struct drm_device *dev, void *data,
1025                         struct drm_file *file_priv)
1026 {
1027         /* Never copy - 2.4.x doesn't need it */
1028         return 0;
1029 }
1030
1031 static int i810_docopy(struct drm_device *dev, void *data,
1032                         struct drm_file *file_priv)
1033 {
1034         /* Never copy - 2.4.x doesn't need it */
1035         return 0;
1036 }
1037
1038 static void i810_dma_dispatch_mc(struct drm_device *dev, struct drm_buf *buf, int used,
1039                                  unsigned int last_render)
1040 {
1041         drm_i810_private_t *dev_priv = dev->dev_private;
1042         drm_i810_buf_priv_t *buf_priv = buf->dev_private;
1043         drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
1044         unsigned long address = (unsigned long)buf->bus_address;
1045         unsigned long start = address - dev->agp->base;
1046         int u;
1047         RING_LOCALS;
1048
1049         i810_kernel_lost_context(dev);
1050
1051         u = cmpxchg(buf_priv->in_use, I810_BUF_CLIENT, I810_BUF_HARDWARE);
1052         if (u != I810_BUF_CLIENT)
1053                 DRM_DEBUG("MC found buffer that isn't mine!\n");
1054
1055         if (used > 4 * 1024)
1056                 used = 0;
1057
1058         sarea_priv->dirty = 0x7f;
1059
1060         DRM_DEBUG("addr 0x%lx, used 0x%x\n", address, used);
1061
1062         dev_priv->counter++;
1063         DRM_DEBUG("dispatch counter : %ld\n", dev_priv->counter);
1064         DRM_DEBUG("start : %lx\n", start);
1065         DRM_DEBUG("used : %d\n", used);
1066         DRM_DEBUG("start + used - 4 : %ld\n", start + used - 4);
1067
1068         if (buf_priv->currently_mapped == I810_BUF_MAPPED) {
1069                 if (used & 4) {
1070                         *(u32 *) ((char *) buf_priv->virtual + used) = 0;
1071                         used += 4;
1072                 }
1073
1074                 i810_unmap_buffer(buf);
1075         }
1076         BEGIN_LP_RING(4);
1077         OUT_RING(CMD_OP_BATCH_BUFFER);
1078         OUT_RING(start | BB1_PROTECTED);
1079         OUT_RING(start + used - 4);
1080         OUT_RING(0);
1081         ADVANCE_LP_RING();
1082
1083         BEGIN_LP_RING(8);
1084         OUT_RING(CMD_STORE_DWORD_IDX);
1085         OUT_RING(buf_priv->my_use_idx);
1086         OUT_RING(I810_BUF_FREE);
1087         OUT_RING(0);
1088
1089         OUT_RING(CMD_STORE_DWORD_IDX);
1090         OUT_RING(16);
1091         OUT_RING(last_render);
1092         OUT_RING(0);
1093         ADVANCE_LP_RING();
1094 }
1095
1096 static int i810_dma_mc(struct drm_device *dev, void *data,
1097                        struct drm_file *file_priv)
1098 {
1099         struct drm_device_dma *dma = dev->dma;
1100         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1101         u32 *hw_status = dev_priv->hw_status_page;
1102         drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
1103             dev_priv->sarea_priv;
1104         drm_i810_mc_t *mc = data;
1105
1106         LOCK_TEST_WITH_RETURN(dev, file_priv);
1107
1108         if (mc->idx >= dma->buf_count || mc->idx < 0)
1109                 return -EINVAL;
1110
1111         i810_dma_dispatch_mc(dev, dma->buflist[mc->idx], mc->used,
1112                              mc->last_render);
1113
1114         atomic_add(mc->used, &dev->counts[_DRM_STAT_SECONDARY]);
1115         atomic_inc(&dev->counts[_DRM_STAT_DMA]);
1116         sarea_priv->last_enqueue = dev_priv->counter - 1;
1117         sarea_priv->last_dispatch = (int)hw_status[5];
1118
1119         return 0;
1120 }
1121
1122 static int i810_rstatus(struct drm_device *dev, void *data,
1123                         struct drm_file *file_priv)
1124 {
1125         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1126
1127         return (int)(((u32 *) (dev_priv->hw_status_page))[4]);
1128 }
1129
1130 static int i810_ov0_info(struct drm_device *dev, void *data,
1131                          struct drm_file *file_priv)
1132 {
1133         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1134         drm_i810_overlay_t *ov = data;
1135
1136         ov->offset = dev_priv->overlay_offset;
1137         ov->physical = dev_priv->overlay_physical;
1138
1139         return 0;
1140 }
1141
1142 static int i810_fstatus(struct drm_device *dev, void *data,
1143                         struct drm_file *file_priv)
1144 {
1145         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1146
1147         LOCK_TEST_WITH_RETURN(dev, file_priv);
1148         return I810_READ(0x30008);
1149 }
1150
1151 static int i810_ov0_flip(struct drm_device *dev, void *data,
1152                          struct drm_file *file_priv)
1153 {
1154         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1155
1156         LOCK_TEST_WITH_RETURN(dev, file_priv);
1157
1158         /* Tell the overlay to update */
1159         I810_WRITE(0x30000, dev_priv->overlay_physical | 0x80000000);
1160
1161         return 0;
1162 }
1163
1164 /* Not sure why this isn't set all the time:
1165  */
1166 static void i810_do_init_pageflip(struct drm_device *dev)
1167 {
1168         drm_i810_private_t *dev_priv = dev->dev_private;
1169
1170         DRM_DEBUG("\n");
1171         dev_priv->page_flipping = 1;
1172         dev_priv->current_page = 0;
1173         dev_priv->sarea_priv->pf_current_page = dev_priv->current_page;
1174 }
1175
1176 static int i810_do_cleanup_pageflip(struct drm_device *dev)
1177 {
1178         drm_i810_private_t *dev_priv = dev->dev_private;
1179
1180         DRM_DEBUG("\n");
1181         if (dev_priv->current_page != 0)
1182                 i810_dma_dispatch_flip(dev);
1183
1184         dev_priv->page_flipping = 0;
1185         return 0;
1186 }
1187
1188 static int i810_flip_bufs(struct drm_device *dev, void *data,
1189                           struct drm_file *file_priv)
1190 {
1191         drm_i810_private_t *dev_priv = dev->dev_private;
1192
1193         DRM_DEBUG("\n");
1194
1195         LOCK_TEST_WITH_RETURN(dev, file_priv);
1196
1197         if (!dev_priv->page_flipping)
1198                 i810_do_init_pageflip(dev);
1199
1200         i810_dma_dispatch_flip(dev);
1201         return 0;
1202 }
1203
1204 int i810_driver_load(struct drm_device *dev, unsigned long flags)
1205 {
1206         /* i810 has 4 more counters */
1207         dev->counters += 4;
1208         dev->types[6] = _DRM_STAT_IRQ;
1209         dev->types[7] = _DRM_STAT_PRIMARY;
1210         dev->types[8] = _DRM_STAT_SECONDARY;
1211         dev->types[9] = _DRM_STAT_DMA;
1212
1213         return 0;
1214 }
1215
1216 void i810_driver_lastclose(struct drm_device *dev)
1217 {
1218         i810_dma_cleanup(dev);
1219 }
1220
1221 void i810_driver_preclose(struct drm_device *dev, struct drm_file *file_priv)
1222 {
1223         if (dev->dev_private) {
1224                 drm_i810_private_t *dev_priv = dev->dev_private;
1225                 if (dev_priv->page_flipping)
1226                         i810_do_cleanup_pageflip(dev);
1227         }
1228 }
1229
1230 void i810_driver_reclaim_buffers_locked(struct drm_device *dev,
1231                                         struct drm_file *file_priv)
1232 {
1233         i810_reclaim_buffers(dev, file_priv);
1234 }
1235
1236 int i810_driver_dma_quiescent(struct drm_device *dev)
1237 {
1238         i810_dma_quiescent(dev);
1239         return 0;
1240 }
1241
1242 struct drm_ioctl_desc i810_ioctls[] = {
1243         DRM_IOCTL_DEF_DRV(I810_INIT, i810_dma_init, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY|DRM_UNLOCKED),
1244         DRM_IOCTL_DEF_DRV(I810_VERTEX, i810_dma_vertex, DRM_AUTH|DRM_UNLOCKED),
1245         DRM_IOCTL_DEF_DRV(I810_CLEAR, i810_clear_bufs, DRM_AUTH|DRM_UNLOCKED),
1246         DRM_IOCTL_DEF_DRV(I810_FLUSH, i810_flush_ioctl, DRM_AUTH|DRM_UNLOCKED),
1247         DRM_IOCTL_DEF_DRV(I810_GETAGE, i810_getage, DRM_AUTH|DRM_UNLOCKED),
1248         DRM_IOCTL_DEF_DRV(I810_GETBUF, i810_getbuf, DRM_AUTH|DRM_UNLOCKED),
1249         DRM_IOCTL_DEF_DRV(I810_SWAP, i810_swap_bufs, DRM_AUTH|DRM_UNLOCKED),
1250         DRM_IOCTL_DEF_DRV(I810_COPY, i810_copybuf, DRM_AUTH|DRM_UNLOCKED),
1251         DRM_IOCTL_DEF_DRV(I810_DOCOPY, i810_docopy, DRM_AUTH|DRM_UNLOCKED),
1252         DRM_IOCTL_DEF_DRV(I810_OV0INFO, i810_ov0_info, DRM_AUTH|DRM_UNLOCKED),
1253         DRM_IOCTL_DEF_DRV(I810_FSTATUS, i810_fstatus, DRM_AUTH|DRM_UNLOCKED),
1254         DRM_IOCTL_DEF_DRV(I810_OV0FLIP, i810_ov0_flip, DRM_AUTH|DRM_UNLOCKED),
1255         DRM_IOCTL_DEF_DRV(I810_MC, i810_dma_mc, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY|DRM_UNLOCKED),
1256         DRM_IOCTL_DEF_DRV(I810_RSTATUS, i810_rstatus, DRM_AUTH|DRM_UNLOCKED),
1257         DRM_IOCTL_DEF_DRV(I810_FLIP, i810_flip_bufs, DRM_AUTH|DRM_UNLOCKED),
1258 };
1259
1260 int i810_max_ioctl = DRM_ARRAY_SIZE(i810_ioctls);
1261
1262 /**
1263  * Determine if the device really is AGP or not.
1264  *
1265  * All Intel graphics chipsets are treated as AGP, even if they are really
1266  * PCI-e.
1267  *
1268  * \param dev   The device to be tested.
1269  *
1270  * \returns
1271  * A value of 1 is always retured to indictate every i810 is AGP.
1272  */
1273 int i810_driver_device_is_agp(struct drm_device *dev)
1274 {
1275         return 1;
1276 }