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         lock_kernel();
  97         dev = priv->minor->dev;
  98         dev_priv = dev->dev_private;
  99         buf = dev_priv->mmap_buffer;
 100         buf_priv = buf->dev_private;
 101
 102         vma->vm_flags |= (VM_IO | VM_DONTCOPY);
 103         vma->vm_file = filp;
 104
 105         buf_priv->currently_mapped = I810_BUF_MAPPED;
 106         unlock_kernel();
 107
 108         if (io_remap_pfn_range(vma, vma->vm_start,
 109                                vma->vm_pgoff,
 110                                vma->vm_end - vma->vm_start, vma->vm_page_prot))
 111                 return -EAGAIN;
 112         return 0;
 113 }
 114
 115 static const struct file_operations i810_buffer_fops = {
 116         .open = drm_open,
 117         .release = drm_release,
 118         .unlocked_ioctl = drm_ioctl,
 119         .mmap = i810_mmap_buffers,
 120         .fasync = drm_fasync,
 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         down_write(&current->mm->mmap_sem);
 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 *)do_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         up_write(&current->mm->mmap_sem);
 150
 151         return retcode;
 152 }
 153
 154 static int i810_unmap_buffer(struct drm_buf *buf)
 155 {
 156         drm_i810_buf_priv_t *buf_priv = buf->dev_private;
 157         int retcode = 0;
 158
 159         if (buf_priv->currently_mapped != I810_BUF_MAPPED)
 160                 return -EINVAL;
 161
 162         down_write(&current->mm->mmap_sem);
 163         retcode = do_munmap(current->mm,
 164                             (unsigned long)buf_priv->virtual,
 165                             (size_t) buf->total);
 166         up_write(&current->mm->mmap_sem);
 167
 168         buf_priv->currently_mapped = I810_BUF_UNMAPPED;
 169         buf_priv->virtual = NULL;
 170
 171         return retcode;
 172 }
 173
 174 static int i810_dma_get_buffer(struct drm_device *dev, drm_i810_dma_t *d,
 175                                struct drm_file *file_priv)
 176 {
 177         struct drm_buf *buf;
 178         drm_i810_buf_priv_t *buf_priv;
 179         int retcode = 0;
 180
 181         buf = i810_freelist_get(dev);
 182         if (!buf) {
 183                 retcode = -ENOMEM;
 184                 DRM_DEBUG("retcode=%d\n", retcode);
 185                 return retcode;
 186         }
 187
 188         retcode = i810_map_buffer(buf, file_priv);
 189         if (retcode) {
 190                 i810_freelist_put(dev, buf);
 191                 DRM_ERROR("mapbuf failed, retcode %d\n", retcode);
 192                 return retcode;
 193         }
 194         buf->file_priv = file_priv;
 195         buf_priv = buf->dev_private;
 196         d->granted = 1;
 197         d->request_idx = buf->idx;
 198         d->request_size = buf->total;
 199         d->virtual = buf_priv->virtual;
 200
 201         return retcode;
 202 }
 203
 204 static int i810_dma_cleanup(struct drm_device *dev)
 205 {
 206         struct drm_device_dma *dma = dev->dma;
 207
 208         /* Make sure interrupts are disabled here because the uninstall ioctl
 209          * may not have been called from userspace and after dev_private
 210          * is freed, it's too late.
 211          */
 212         if (drm_core_check_feature(dev, DRIVER_HAVE_IRQ) && dev->irq_enabled)
 213                 drm_irq_uninstall(dev);
 214
 215         if (dev->dev_private) {
 216                 int i;
 217                 drm_i810_private_t *dev_priv =
 218                     (drm_i810_private_t *) dev->dev_private;
 219
 220                 if (dev_priv->ring.virtual_start)
 221                         drm_core_ioremapfree(&dev_priv->ring.map, dev);
 222                 if (dev_priv->hw_status_page) {
 223                         pci_free_consistent(dev->pdev, PAGE_SIZE,
 224                                             dev_priv->hw_status_page,
 225                                             dev_priv->dma_status_page);
 226                         /* Need to rewrite hardware status page */
 227                         I810_WRITE(0x02080, 0x1ffff000);
 228                 }
 229                 kfree(dev->dev_private);
 230                 dev->dev_private = NULL;
 231
 232                 for (i = 0; i < dma->buf_count; i++) {
 233                         struct drm_buf *buf = dma->buflist[i];
 234                         drm_i810_buf_priv_t *buf_priv = buf->dev_private;
 235
 236                         if (buf_priv->kernel_virtual && buf->total)
 237                                 drm_core_ioremapfree(&buf_priv->map, dev);
 238                 }
 239         }
 240         return 0;
 241 }
 242
 243 static int i810_wait_ring(struct drm_device *dev, int n)
 244 {
 245         drm_i810_private_t *dev_priv = dev->dev_private;
 246         drm_i810_ring_buffer_t *ring = &(dev_priv->ring);
 247         int iters = 0;
 248         unsigned long end;
 249         unsigned int last_head = I810_READ(LP_RING + RING_HEAD) & HEAD_ADDR;
 250
 251         end = jiffies + (HZ * 3);
 252         while (ring->space < n) {
 253                 ring->head = I810_READ(LP_RING + RING_HEAD) & HEAD_ADDR;
 254                 ring->space = ring->head - (ring->tail + 8);
 255                 if (ring->space < 0)
 256                         ring->space += ring->Size;
 257
 258                 if (ring->head != last_head) {
 259                         end = jiffies + (HZ * 3);
 260                         last_head = ring->head;
 261                 }
 262
 263                 iters++;
 264                 if (time_before(end, jiffies)) {
 265                         DRM_ERROR("space: %d wanted %d\n", ring->space, n);
 266                         DRM_ERROR("lockup\n");
 267                         goto out_wait_ring;
 268                 }
 269                 udelay(1);
 270         }
 271
 272 out_wait_ring:
 273         return iters;
 274 }
 275
 276 static void i810_kernel_lost_context(struct drm_device *dev)
 277 {
 278         drm_i810_private_t *dev_priv = dev->dev_private;
 279         drm_i810_ring_buffer_t *ring = &(dev_priv->ring);
 280
 281         ring->head = I810_READ(LP_RING + RING_HEAD) & HEAD_ADDR;
 282         ring->tail = I810_READ(LP_RING + RING_TAIL);
 283         ring->space = ring->head - (ring->tail + 8);
 284         if (ring->space < 0)
 285                 ring->space += ring->Size;
 286 }
 287
 288 static int i810_freelist_init(struct drm_device *dev, drm_i810_private_t *dev_priv)
 289 {
 290         struct drm_device_dma *dma = dev->dma;
 291         int my_idx = 24;
 292         u32 *hw_status = (u32 *) (dev_priv->hw_status_page + my_idx);
 293         int i;
 294
 295         if (dma->buf_count > 1019) {
 296                 /* Not enough space in the status page for the freelist */
 297                 return -EINVAL;
 298         }
 299
 300         for (i = 0; i < dma->buf_count; i++) {
 301                 struct drm_buf *buf = dma->buflist[i];
 302                 drm_i810_buf_priv_t *buf_priv = buf->dev_private;
 303
 304                 buf_priv->in_use = hw_status++;
 305                 buf_priv->my_use_idx = my_idx;
 306                 my_idx += 4;
 307
 308                 *buf_priv->in_use = I810_BUF_FREE;
 309
 310                 buf_priv->map.offset = buf->bus_address;
 311                 buf_priv->map.size = buf->total;
 312                 buf_priv->map.type = _DRM_AGP;
 313                 buf_priv->map.flags = 0;
 314                 buf_priv->map.mtrr = 0;
 315
 316                 drm_core_ioremap(&buf_priv->map, dev);
 317                 buf_priv->kernel_virtual = buf_priv->map.handle;
 318
 319         }
 320         return 0;
 321 }
 322
 323 static int i810_dma_initialize(struct drm_device *dev,
 324                                drm_i810_private_t *dev_priv,
 325                                drm_i810_init_t *init)
 326 {
 327         struct drm_map_list *r_list;
 328         memset(dev_priv, 0, sizeof(drm_i810_private_t));
 329
 330         list_for_each_entry(r_list, &dev->maplist, head) {
 331                 if (r_list->map &&
 332                     r_list->map->type == _DRM_SHM &&
 333                     r_list->map->flags & _DRM_CONTAINS_LOCK) {
 334                         dev_priv->sarea_map = r_list->map;
 335                         break;
 336                 }
 337         }
 338         if (!dev_priv->sarea_map) {
 339                 dev->dev_private = (void *)dev_priv;
 340                 i810_dma_cleanup(dev);
 341                 DRM_ERROR("can not find sarea!\n");
 342                 return -EINVAL;
 343         }
 344         dev_priv->mmio_map = drm_core_findmap(dev, init->mmio_offset);
 345         if (!dev_priv->mmio_map) {
 346                 dev->dev_private = (void *)dev_priv;
 347                 i810_dma_cleanup(dev);
 348                 DRM_ERROR("can not find mmio map!\n");
 349                 return -EINVAL;
 350         }
 351         dev->agp_buffer_token = init->buffers_offset;
 352         dev->agp_buffer_map = drm_core_findmap(dev, init->buffers_offset);
 353         if (!dev->agp_buffer_map) {
 354                 dev->dev_private = (void *)dev_priv;
 355                 i810_dma_cleanup(dev);
 356                 DRM_ERROR("can not find dma buffer map!\n");
 357                 return -EINVAL;
 358         }
 359
 360         dev_priv->sarea_priv = (drm_i810_sarea_t *)
 361             ((u8 *) dev_priv->sarea_map->handle + init->sarea_priv_offset);
 362
 363         dev_priv->ring.Start = init->ring_start;
 364         dev_priv->ring.End = init->ring_end;
 365         dev_priv->ring.Size = init->ring_size;
 366
 367         dev_priv->ring.map.offset = dev->agp->base + init->ring_start;
 368         dev_priv->ring.map.size = init->ring_size;
 369         dev_priv->ring.map.type = _DRM_AGP;
 370         dev_priv->ring.map.flags = 0;
 371         dev_priv->ring.map.mtrr = 0;
 372
 373         drm_core_ioremap(&dev_priv->ring.map, dev);
 374
 375         if (dev_priv->ring.map.handle == NULL) {
 376                 dev->dev_private = (void *)dev_priv;
 377                 i810_dma_cleanup(dev);
 378                 DRM_ERROR("can not ioremap virtual address for"
 379                           " ring buffer\n");
 380                 return -ENOMEM;
 381         }
 382
 383         dev_priv->ring.virtual_start = dev_priv->ring.map.handle;
 384
 385         dev_priv->ring.tail_mask = dev_priv->ring.Size - 1;
 386
 387         dev_priv->w = init->w;
 388         dev_priv->h = init->h;
 389         dev_priv->pitch = init->pitch;
 390         dev_priv->back_offset = init->back_offset;
 391         dev_priv->depth_offset = init->depth_offset;
 392         dev_priv->front_offset = init->front_offset;
 393
 394         dev_priv->overlay_offset = init->overlay_offset;
 395         dev_priv->overlay_physical = init->overlay_physical;
 396
 397         dev_priv->front_di1 = init->front_offset | init->pitch_bits;
 398         dev_priv->back_di1 = init->back_offset | init->pitch_bits;
 399         dev_priv->zi1 = init->depth_offset | init->pitch_bits;
 400
 401         /* Program Hardware Status Page */
 402         dev_priv->hw_status_page =
 403             pci_alloc_consistent(dev->pdev, PAGE_SIZE,
 404                                  &dev_priv->dma_status_page);
 405         if (!dev_priv->hw_status_page) {
 406                 dev->dev_private = (void *)dev_priv;
 407                 i810_dma_cleanup(dev);
 408                 DRM_ERROR("Can not allocate hardware status page\n");
 409                 return -ENOMEM;
 410         }
 411         memset(dev_priv->hw_status_page, 0, PAGE_SIZE);
 412         DRM_DEBUG("hw status page @ %p\n", dev_priv->hw_status_page);
 413
 414         I810_WRITE(0x02080, dev_priv->dma_status_page);
 415         DRM_DEBUG("Enabled hardware status page\n");
 416
 417         /* Now we need to init our freelist */
 418         if (i810_freelist_init(dev, dev_priv) != 0) {
 419                 dev->dev_private = (void *)dev_priv;
 420                 i810_dma_cleanup(dev);
 421                 DRM_ERROR("Not enough space in the status page for"
 422                           " the freelist\n");
 423                 return -ENOMEM;
 424         }
 425         dev->dev_private = (void *)dev_priv;
 426
 427         return 0;
 428 }
 429
 430 static int i810_dma_init(struct drm_device *dev, void *data,
 431                          struct drm_file *file_priv)
 432 {
 433         drm_i810_private_t *dev_priv;
 434         drm_i810_init_t *init = data;
 435         int retcode = 0;
 436
 437         switch (init->func) {
 438         case I810_INIT_DMA_1_4:
 439                 DRM_INFO("Using v1.4 init.\n");
 440                 dev_priv = kmalloc(sizeof(drm_i810_private_t), GFP_KERNEL);
 441                 if (dev_priv == NULL)
 442                         return -ENOMEM;
 443                 retcode = i810_dma_initialize(dev, dev_priv, init);
 444                 break;
 445
 446         case I810_CLEANUP_DMA:
 447                 DRM_INFO("DMA Cleanup\n");
 448                 retcode = i810_dma_cleanup(dev);
 449                 break;
 450         default:
 451                 return -EINVAL;
 452         }
 453
 454         return retcode;
 455 }
 456
 457 /* Most efficient way to verify state for the i810 is as it is
 458  * emitted.  Non-conformant state is silently dropped.
 459  *
 460  * Use 'volatile' & local var tmp to force the emitted values to be
 461  * identical to the verified ones.
 462  */
 463 static void i810EmitContextVerified(struct drm_device *dev,
 464                                     volatile unsigned int *code)
 465 {
 466         drm_i810_private_t *dev_priv = dev->dev_private;
 467         int i, j = 0;
 468         unsigned int tmp;
 469         RING_LOCALS;
 470
 471         BEGIN_LP_RING(I810_CTX_SETUP_SIZE);
 472
 473         OUT_RING(GFX_OP_COLOR_FACTOR);
 474         OUT_RING(code[I810_CTXREG_CF1]);
 475
 476         OUT_RING(GFX_OP_STIPPLE);
 477         OUT_RING(code[I810_CTXREG_ST1]);
 478
 479         for (i = 4; i < I810_CTX_SETUP_SIZE; i++) {
 480                 tmp = code[i];
 481
 482                 if ((tmp & (7 << 29)) == (3 << 29) &&
 483                     (tmp & (0x1f << 24)) < (0x1d << 24)) {
 484                         OUT_RING(tmp);
 485                         j++;
 486                 } else
 487                         printk("constext state dropped!!!\n");
 488         }
 489
 490         if (j & 1)
 491                 OUT_RING(0);
 492
 493         ADVANCE_LP_RING();
 494 }
 495
 496 static void i810EmitTexVerified(struct drm_device *dev, volatile unsigned int *code)
 497 {
 498         drm_i810_private_t *dev_priv = dev->dev_private;
 499         int i, j = 0;
 500         unsigned int tmp;
 501         RING_LOCALS;
 502
 503         BEGIN_LP_RING(I810_TEX_SETUP_SIZE);
 504
 505         OUT_RING(GFX_OP_MAP_INFO);
 506         OUT_RING(code[I810_TEXREG_MI1]);
 507         OUT_RING(code[I810_TEXREG_MI2]);
 508         OUT_RING(code[I810_TEXREG_MI3]);
 509
 510         for (i = 4; i < I810_TEX_SETUP_SIZE; i++) {
 511                 tmp = code[i];
 512
 513                 if ((tmp & (7 << 29)) == (3 << 29) &&
 514                     (tmp & (0x1f << 24)) < (0x1d << 24)) {
 515                         OUT_RING(tmp);
 516                         j++;
 517                 } else
 518                         printk("texture state dropped!!!\n");
 519         }
 520
 521         if (j & 1)
 522                 OUT_RING(0);
 523
 524         ADVANCE_LP_RING();
 525 }
 526
 527 /* Need to do some additional checking when setting the dest buffer.
 528  */
 529 static void i810EmitDestVerified(struct drm_device *dev,
 530                                  volatile unsigned int *code)
 531 {
 532         drm_i810_private_t *dev_priv = dev->dev_private;
 533         unsigned int tmp;
 534         RING_LOCALS;
 535
 536         BEGIN_LP_RING(I810_DEST_SETUP_SIZE + 2);
 537
 538         tmp = code[I810_DESTREG_DI1];
 539         if (tmp == dev_priv->front_di1 || tmp == dev_priv->back_di1) {
 540                 OUT_RING(CMD_OP_DESTBUFFER_INFO);
 541                 OUT_RING(tmp);
 542         } else
 543                 DRM_DEBUG("bad di1 %x (allow %x or %x)\n",
 544                           tmp, dev_priv->front_di1, dev_priv->back_di1);
 545
 546         /* invarient:
 547          */
 548         OUT_RING(CMD_OP_Z_BUFFER_INFO);
 549         OUT_RING(dev_priv->zi1);
 550
 551         OUT_RING(GFX_OP_DESTBUFFER_VARS);
 552         OUT_RING(code[I810_DESTREG_DV1]);
 553
 554         OUT_RING(GFX_OP_DRAWRECT_INFO);
 555         OUT_RING(code[I810_DESTREG_DR1]);
 556         OUT_RING(code[I810_DESTREG_DR2]);
 557         OUT_RING(code[I810_DESTREG_DR3]);
 558         OUT_RING(code[I810_DESTREG_DR4]);
 559         OUT_RING(0);
 560
 561         ADVANCE_LP_RING();
 562 }
 563
 564 static void i810EmitState(struct drm_device *dev)
 565 {
 566         drm_i810_private_t *dev_priv = dev->dev_private;
 567         drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
 568         unsigned int dirty = sarea_priv->dirty;
 569
 570         DRM_DEBUG("%x\n", dirty);
 571
 572         if (dirty & I810_UPLOAD_BUFFERS) {
 573                 i810EmitDestVerified(dev, sarea_priv->BufferState);
 574                 sarea_priv->dirty &= ~I810_UPLOAD_BUFFERS;
 575         }
 576
 577         if (dirty & I810_UPLOAD_CTX) {
 578                 i810EmitContextVerified(dev, sarea_priv->ContextState);
 579                 sarea_priv->dirty &= ~I810_UPLOAD_CTX;
 580         }
 581
 582         if (dirty & I810_UPLOAD_TEX0) {
 583                 i810EmitTexVerified(dev, sarea_priv->TexState[0]);
 584                 sarea_priv->dirty &= ~I810_UPLOAD_TEX0;
 585         }
 586
 587         if (dirty & I810_UPLOAD_TEX1) {
 588                 i810EmitTexVerified(dev, sarea_priv->TexState[1]);
 589                 sarea_priv->dirty &= ~I810_UPLOAD_TEX1;
 590         }
 591 }
 592
 593 /* need to verify
 594  */
 595 static void i810_dma_dispatch_clear(struct drm_device *dev, int flags,
 596                                     unsigned int clear_color,
 597                                     unsigned int clear_zval)
 598 {
 599         drm_i810_private_t *dev_priv = dev->dev_private;
 600         drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
 601         int nbox = sarea_priv->nbox;
 602         struct drm_clip_rect *pbox = sarea_priv->boxes;
 603         int pitch = dev_priv->pitch;
 604         int cpp = 2;
 605         int i;
 606         RING_LOCALS;
 607
 608         if (dev_priv->current_page == 1) {
 609                 unsigned int tmp = flags;
 610
 611                 flags &= ~(I810_FRONT | I810_BACK);
 612                 if (tmp & I810_FRONT)
 613                         flags |= I810_BACK;
 614                 if (tmp & I810_BACK)
 615                         flags |= I810_FRONT;
 616         }
 617
 618         i810_kernel_lost_context(dev);
 619
 620         if (nbox > I810_NR_SAREA_CLIPRECTS)
 621                 nbox = I810_NR_SAREA_CLIPRECTS;
 622
 623         for (i = 0; i < nbox; i++, pbox++) {
 624                 unsigned int x = pbox->x1;
 625                 unsigned int y = pbox->y1;
 626                 unsigned int width = (pbox->x2 - x) * cpp;
 627                 unsigned int height = pbox->y2 - y;
 628                 unsigned int start = y * pitch + x * cpp;
 629
 630                 if (pbox->x1 > pbox->x2 ||
 631                     pbox->y1 > pbox->y2 ||
 632                     pbox->x2 > dev_priv->w || pbox->y2 > dev_priv->h)
 633                         continue;
 634
 635                 if (flags & I810_FRONT) {
 636                         BEGIN_LP_RING(6);
 637                         OUT_RING(BR00_BITBLT_CLIENT | BR00_OP_COLOR_BLT | 0x3);
 638                         OUT_RING(BR13_SOLID_PATTERN | (0xF0 << 16) | pitch);
 639                         OUT_RING((height << 16) | width);
 640                         OUT_RING(start);
 641                         OUT_RING(clear_color);
 642                         OUT_RING(0);
 643                         ADVANCE_LP_RING();
 644                 }
 645
 646                 if (flags & I810_BACK) {
 647                         BEGIN_LP_RING(6);
 648                         OUT_RING(BR00_BITBLT_CLIENT | BR00_OP_COLOR_BLT | 0x3);
 649                         OUT_RING(BR13_SOLID_PATTERN | (0xF0 << 16) | pitch);
 650                         OUT_RING((height << 16) | width);
 651                         OUT_RING(dev_priv->back_offset + start);
 652                         OUT_RING(clear_color);
 653                         OUT_RING(0);
 654                         ADVANCE_LP_RING();
 655                 }
 656
 657                 if (flags & I810_DEPTH) {
 658                         BEGIN_LP_RING(6);
 659                         OUT_RING(BR00_BITBLT_CLIENT | BR00_OP_COLOR_BLT | 0x3);
 660                         OUT_RING(BR13_SOLID_PATTERN | (0xF0 << 16) | pitch);
 661                         OUT_RING((height << 16) | width);
 662                         OUT_RING(dev_priv->depth_offset + start);
 663                         OUT_RING(clear_zval);
 664                         OUT_RING(0);
 665                         ADVANCE_LP_RING();
 666                 }
 667         }
 668 }
 669
 670 static void i810_dma_dispatch_swap(struct drm_device *dev)
 671 {
 672         drm_i810_private_t *dev_priv = dev->dev_private;
 673         drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
 674         int nbox = sarea_priv->nbox;
 675         struct drm_clip_rect *pbox = sarea_priv->boxes;
 676         int pitch = dev_priv->pitch;
 677         int cpp = 2;
 678         int i;
 679         RING_LOCALS;
 680
 681         DRM_DEBUG("swapbuffers\n");
 682
 683         i810_kernel_lost_context(dev);
 684
 685         if (nbox > I810_NR_SAREA_CLIPRECTS)
 686                 nbox = I810_NR_SAREA_CLIPRECTS;
 687
 688         for (i = 0; i < nbox; i++, pbox++) {
 689                 unsigned int w = pbox->x2 - pbox->x1;
 690                 unsigned int h = pbox->y2 - pbox->y1;
 691                 unsigned int dst = pbox->x1 * cpp + pbox->y1 * pitch;
 692                 unsigned int start = dst;
 693
 694                 if (pbox->x1 > pbox->x2 ||
 695                     pbox->y1 > pbox->y2 ||
 696                     pbox->x2 > dev_priv->w || pbox->y2 > dev_priv->h)
 697                         continue;
 698
 699                 BEGIN_LP_RING(6);
 700                 OUT_RING(BR00_BITBLT_CLIENT | BR00_OP_SRC_COPY_BLT | 0x4);
 701                 OUT_RING(pitch | (0xCC << 16));
 702                 OUT_RING((h << 16) | (w * cpp));
 703                 if (dev_priv->current_page == 0)
 704                         OUT_RING(dev_priv->front_offset + start);
 705                 else
 706                         OUT_RING(dev_priv->back_offset + start);
 707                 OUT_RING(pitch);
 708                 if (dev_priv->current_page == 0)
 709                         OUT_RING(dev_priv->back_offset + start);
 710                 else
 711                         OUT_RING(dev_priv->front_offset + start);
 712                 ADVANCE_LP_RING();
 713         }
 714 }
 715
 716 static void i810_dma_dispatch_vertex(struct drm_device *dev,
 717                                      struct drm_buf *buf, int discard, int used)
 718 {
 719         drm_i810_private_t *dev_priv = dev->dev_private;
 720         drm_i810_buf_priv_t *buf_priv = buf->dev_private;
 721         drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
 722         struct drm_clip_rect *box = sarea_priv->boxes;
 723         int nbox = sarea_priv->nbox;
 724         unsigned long address = (unsigned long)buf->bus_address;
 725         unsigned long start = address - dev->agp->base;
 726         int i = 0;
 727         RING_LOCALS;
 728
 729         i810_kernel_lost_context(dev);
 730
 731         if (nbox > I810_NR_SAREA_CLIPRECTS)
 732                 nbox = I810_NR_SAREA_CLIPRECTS;
 733
 734         if (used > 4 * 1024)
 735                 used = 0;
 736
 737         if (sarea_priv->dirty)
 738                 i810EmitState(dev);
 739
 740         if (buf_priv->currently_mapped == I810_BUF_MAPPED) {
 741                 unsigned int prim = (sarea_priv->vertex_prim & PR_MASK);
 742
 743                 *(u32 *) buf_priv->kernel_virtual =
 744                     ((GFX_OP_PRIMITIVE | prim | ((used / 4) - 2)));
 745
 746                 if (used & 4) {
 747                         *(u32 *) ((char *) buf_priv->kernel_virtual + used) = 0;
 748                         used += 4;
 749                 }
 750
 751                 i810_unmap_buffer(buf);
 752         }
 753
 754         if (used) {
 755                 do {
 756                         if (i < nbox) {
 757                                 BEGIN_LP_RING(4);
 758                                 OUT_RING(GFX_OP_SCISSOR | SC_UPDATE_SCISSOR |
 759                                          SC_ENABLE);
 760                                 OUT_RING(GFX_OP_SCISSOR_INFO);
 761                                 OUT_RING(box[i].x1 | (box[i].y1 << 16));
 762                                 OUT_RING((box[i].x2 -
 763                                           1) | ((box[i].y2 - 1) << 16));
 764                                 ADVANCE_LP_RING();
 765                         }
 766
 767                         BEGIN_LP_RING(4);
 768                         OUT_RING(CMD_OP_BATCH_BUFFER);
 769                         OUT_RING(start | BB1_PROTECTED);
 770                         OUT_RING(start + used - 4);
 771                         OUT_RING(0);
 772                         ADVANCE_LP_RING();
 773
 774                 } while (++i < nbox);
 775         }
 776
 777         if (discard) {
 778                 dev_priv->counter++;
 779
 780                 (void)cmpxchg(buf_priv->in_use, I810_BUF_CLIENT,
 781                               I810_BUF_HARDWARE);
 782
 783                 BEGIN_LP_RING(8);
 784                 OUT_RING(CMD_STORE_DWORD_IDX);
 785                 OUT_RING(20);
 786                 OUT_RING(dev_priv->counter);
 787                 OUT_RING(CMD_STORE_DWORD_IDX);
 788                 OUT_RING(buf_priv->my_use_idx);
 789                 OUT_RING(I810_BUF_FREE);
 790                 OUT_RING(CMD_REPORT_HEAD);
 791                 OUT_RING(0);
 792                 ADVANCE_LP_RING();
 793         }
 794 }
 795
 796 static void i810_dma_dispatch_flip(struct drm_device *dev)
 797 {
 798         drm_i810_private_t *dev_priv = dev->dev_private;
 799         int pitch = dev_priv->pitch;
 800         RING_LOCALS;
 801
 802         DRM_DEBUG("page=%d pfCurrentPage=%d\n",
 803                   dev_priv->current_page,
 804                   dev_priv->sarea_priv->pf_current_page);
 805
 806         i810_kernel_lost_context(dev);
 807
 808         BEGIN_LP_RING(2);
 809         OUT_RING(INST_PARSER_CLIENT | INST_OP_FLUSH | INST_FLUSH_MAP_CACHE);
 810         OUT_RING(0);
 811         ADVANCE_LP_RING();
 812
 813         BEGIN_LP_RING(I810_DEST_SETUP_SIZE + 2);
 814         /* On i815 at least ASYNC is buggy */
 815         /* pitch<<5 is from 11.2.8 p158,
 816            its the pitch / 8 then left shifted 8,
 817            so (pitch >> 3) << 8 */
 818         OUT_RING(CMD_OP_FRONTBUFFER_INFO | (pitch << 5) /*| ASYNC_FLIP */ );
 819         if (dev_priv->current_page == 0) {
 820                 OUT_RING(dev_priv->back_offset);
 821                 dev_priv->current_page = 1;
 822         } else {
 823                 OUT_RING(dev_priv->front_offset);
 824                 dev_priv->current_page = 0;
 825         }
 826         OUT_RING(0);
 827         ADVANCE_LP_RING();
 828
 829         BEGIN_LP_RING(2);
 830         OUT_RING(CMD_OP_WAIT_FOR_EVENT | WAIT_FOR_PLANE_A_FLIP);
 831         OUT_RING(0);
 832         ADVANCE_LP_RING();
 833
 834         /* Increment the frame counter.  The client-side 3D driver must
 835          * throttle the framerate by waiting for this value before
 836          * performing the swapbuffer ioctl.
 837          */
 838         dev_priv->sarea_priv->pf_current_page = dev_priv->current_page;
 839
 840 }
 841
 842 static void i810_dma_quiescent(struct drm_device *dev)
 843 {
 844         drm_i810_private_t *dev_priv = dev->dev_private;
 845         RING_LOCALS;
 846
 847         i810_kernel_lost_context(dev);
 848
 849         BEGIN_LP_RING(4);
 850         OUT_RING(INST_PARSER_CLIENT | INST_OP_FLUSH | INST_FLUSH_MAP_CACHE);
 851         OUT_RING(CMD_REPORT_HEAD);
 852         OUT_RING(0);
 853         OUT_RING(0);
 854         ADVANCE_LP_RING();
 855
 856         i810_wait_ring(dev, dev_priv->ring.Size - 8);
 857 }
 858
 859 static int i810_flush_queue(struct drm_device *dev)
 860 {
 861         drm_i810_private_t *dev_priv = dev->dev_private;
 862         struct drm_device_dma *dma = dev->dma;
 863         int i, ret = 0;
 864         RING_LOCALS;
 865
 866         i810_kernel_lost_context(dev);
 867
 868         BEGIN_LP_RING(2);
 869         OUT_RING(CMD_REPORT_HEAD);
 870         OUT_RING(0);
 871         ADVANCE_LP_RING();
 872
 873         i810_wait_ring(dev, dev_priv->ring.Size - 8);
 874
 875         for (i = 0; i < dma->buf_count; i++) {
 876                 struct drm_buf *buf = dma->buflist[i];
 877                 drm_i810_buf_priv_t *buf_priv = buf->dev_private;
 878
 879                 int used = cmpxchg(buf_priv->in_use, I810_BUF_HARDWARE,
 880                                    I810_BUF_FREE);
 881
 882                 if (used == I810_BUF_HARDWARE)
 883                         DRM_DEBUG("reclaimed from HARDWARE\n");
 884                 if (used == I810_BUF_CLIENT)
 885                         DRM_DEBUG("still on client\n");
 886         }
 887
 888         return ret;
 889 }
 890
 891 /* Must be called with the lock held */
 892 static void i810_reclaim_buffers(struct drm_device *dev,
 893                                  struct drm_file *file_priv)
 894 {
 895         struct drm_device_dma *dma = dev->dma;
 896         int i;
 897
 898         if (!dma)
 899                 return;
 900         if (!dev->dev_private)
 901                 return;
 902         if (!dma->buflist)
 903                 return;
 904
 905         i810_flush_queue(dev);
 906
 907         for (i = 0; i < dma->buf_count; i++) {
 908                 struct drm_buf *buf = dma->buflist[i];
 909                 drm_i810_buf_priv_t *buf_priv = buf->dev_private;
 910
 911                 if (buf->file_priv == file_priv && buf_priv) {
 912                         int used = cmpxchg(buf_priv->in_use, I810_BUF_CLIENT,
 913                                            I810_BUF_FREE);
 914
 915                         if (used == I810_BUF_CLIENT)
 916                                 DRM_DEBUG("reclaimed from client\n");
 917                         if (buf_priv->currently_mapped == I810_BUF_MAPPED)
 918                                 buf_priv->currently_mapped = I810_BUF_UNMAPPED;
 919                 }
 920         }
 921 }
 922
 923 static int i810_flush_ioctl(struct drm_device *dev, void *data,
 924                             struct drm_file *file_priv)
 925 {
 926         LOCK_TEST_WITH_RETURN(dev, file_priv);
 927
 928         i810_flush_queue(dev);
 929         return 0;
 930 }
 931
 932 static int i810_dma_vertex(struct drm_device *dev, void *data,
 933                            struct drm_file *file_priv)
 934 {
 935         struct drm_device_dma *dma = dev->dma;
 936         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
 937         u32 *hw_status = dev_priv->hw_status_page;
 938         drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
 939             dev_priv->sarea_priv;
 940         drm_i810_vertex_t *vertex = data;
 941
 942         LOCK_TEST_WITH_RETURN(dev, file_priv);
 943
 944         DRM_DEBUG("idx %d used %d discard %d\n",
 945                   vertex->idx, vertex->used, vertex->discard);
 946
 947         if (vertex->idx < 0 || vertex->idx > dma->buf_count)
 948                 return -EINVAL;
 949
 950         i810_dma_dispatch_vertex(dev,
 951                                  dma->buflist[vertex->idx],
 952                                  vertex->discard, vertex->used);
 953
 954         atomic_add(vertex->used, &dev->counts[_DRM_STAT_SECONDARY]);
 955         atomic_inc(&dev->counts[_DRM_STAT_DMA]);
 956         sarea_priv->last_enqueue = dev_priv->counter - 1;
 957         sarea_priv->last_dispatch = (int)hw_status[5];
 958
 959         return 0;
 960 }
 961
 962 static int i810_clear_bufs(struct drm_device *dev, void *data,
 963                            struct drm_file *file_priv)
 964 {
 965         drm_i810_clear_t *clear = data;
 966
 967         LOCK_TEST_WITH_RETURN(dev, file_priv);
 968
 969         /* GH: Someone's doing nasty things... */
 970         if (!dev->dev_private)
 971                 return -EINVAL;
 972
 973         i810_dma_dispatch_clear(dev, clear->flags,
 974                                 clear->clear_color, clear->clear_depth);
 975         return 0;
 976 }
 977
 978 static int i810_swap_bufs(struct drm_device *dev, void *data,
 979                           struct drm_file *file_priv)
 980 {
 981         DRM_DEBUG("\n");
 982
 983         LOCK_TEST_WITH_RETURN(dev, file_priv);
 984
 985         i810_dma_dispatch_swap(dev);
 986         return 0;
 987 }
 988
 989 static int i810_getage(struct drm_device *dev, void *data,
 990                        struct drm_file *file_priv)
 991 {
 992         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
 993         u32 *hw_status = dev_priv->hw_status_page;
 994         drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
 995             dev_priv->sarea_priv;
 996
 997         sarea_priv->last_dispatch = (int)hw_status[5];
 998         return 0;
 999 }
1000
1001 static int i810_getbuf(struct drm_device *dev, void *data,
1002                        struct drm_file *file_priv)
1003 {
1004         int retcode = 0;
1005         drm_i810_dma_t *d = data;
1006         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1007         u32 *hw_status = dev_priv->hw_status_page;
1008         drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
1009             dev_priv->sarea_priv;
1010
1011         LOCK_TEST_WITH_RETURN(dev, file_priv);
1012
1013         d->granted = 0;
1014
1015         retcode = i810_dma_get_buffer(dev, d, file_priv);
1016
1017         DRM_DEBUG("i810_dma: %d returning %d, granted = %d\n",
1018                   task_pid_nr(current), retcode, d->granted);
1019
1020         sarea_priv->last_dispatch = (int)hw_status[5];
1021
1022         return retcode;
1023 }
1024
1025 static int i810_copybuf(struct drm_device *dev, void *data,
1026                         struct drm_file *file_priv)
1027 {
1028         /* Never copy - 2.4.x doesn't need it */
1029         return 0;
1030 }
1031
1032 static int i810_docopy(struct drm_device *dev, void *data,
1033                         struct drm_file *file_priv)
1034 {
1035         /* Never copy - 2.4.x doesn't need it */
1036         return 0;
1037 }
1038
1039 static void i810_dma_dispatch_mc(struct drm_device *dev, struct drm_buf *buf, int used,
1040                                  unsigned int last_render)
1041 {
1042         drm_i810_private_t *dev_priv = dev->dev_private;
1043         drm_i810_buf_priv_t *buf_priv = buf->dev_private;
1044         drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
1045         unsigned long address = (unsigned long)buf->bus_address;
1046         unsigned long start = address - dev->agp->base;
1047         int u;
1048         RING_LOCALS;
1049
1050         i810_kernel_lost_context(dev);
1051
1052         u = cmpxchg(buf_priv->in_use, I810_BUF_CLIENT, I810_BUF_HARDWARE);
1053         if (u != I810_BUF_CLIENT)
1054                 DRM_DEBUG("MC found buffer that isn't mine!\n");
1055
1056         if (used > 4 * 1024)
1057                 used = 0;
1058
1059         sarea_priv->dirty = 0x7f;
1060
1061         DRM_DEBUG("addr 0x%lx, used 0x%x\n", address, used);
1062
1063         dev_priv->counter++;
1064         DRM_DEBUG("dispatch counter : %ld\n", dev_priv->counter);
1065         DRM_DEBUG("start : %lx\n", start);
1066         DRM_DEBUG("used : %d\n", used);
1067         DRM_DEBUG("start + used - 4 : %ld\n", start + used - 4);
1068
1069         if (buf_priv->currently_mapped == I810_BUF_MAPPED) {
1070                 if (used & 4) {
1071                         *(u32 *) ((char *) buf_priv->virtual + used) = 0;
1072                         used += 4;
1073                 }
1074
1075                 i810_unmap_buffer(buf);
1076         }
1077         BEGIN_LP_RING(4);
1078         OUT_RING(CMD_OP_BATCH_BUFFER);
1079         OUT_RING(start | BB1_PROTECTED);
1080         OUT_RING(start + used - 4);
1081         OUT_RING(0);
1082         ADVANCE_LP_RING();
1083
1084         BEGIN_LP_RING(8);
1085         OUT_RING(CMD_STORE_DWORD_IDX);
1086         OUT_RING(buf_priv->my_use_idx);
1087         OUT_RING(I810_BUF_FREE);
1088         OUT_RING(0);
1089
1090         OUT_RING(CMD_STORE_DWORD_IDX);
1091         OUT_RING(16);
1092         OUT_RING(last_render);
1093         OUT_RING(0);
1094         ADVANCE_LP_RING();
1095 }
1096
1097 static int i810_dma_mc(struct drm_device *dev, void *data,
1098                        struct drm_file *file_priv)
1099 {
1100         struct drm_device_dma *dma = dev->dma;
1101         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1102         u32 *hw_status = dev_priv->hw_status_page;
1103         drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
1104             dev_priv->sarea_priv;
1105         drm_i810_mc_t *mc = data;
1106
1107         LOCK_TEST_WITH_RETURN(dev, file_priv);
1108
1109         if (mc->idx >= dma->buf_count || mc->idx < 0)
1110                 return -EINVAL;
1111
1112         i810_dma_dispatch_mc(dev, dma->buflist[mc->idx], mc->used,
1113                              mc->last_render);
1114
1115         atomic_add(mc->used, &dev->counts[_DRM_STAT_SECONDARY]);
1116         atomic_inc(&dev->counts[_DRM_STAT_DMA]);
1117         sarea_priv->last_enqueue = dev_priv->counter - 1;
1118         sarea_priv->last_dispatch = (int)hw_status[5];
1119
1120         return 0;
1121 }
1122
1123 static int i810_rstatus(struct drm_device *dev, void *data,
1124                         struct drm_file *file_priv)
1125 {
1126         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1127
1128         return (int)(((u32 *) (dev_priv->hw_status_page))[4]);
1129 }
1130
1131 static int i810_ov0_info(struct drm_device *dev, void *data,
1132                          struct drm_file *file_priv)
1133 {
1134         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1135         drm_i810_overlay_t *ov = data;
1136
1137         ov->offset = dev_priv->overlay_offset;
1138         ov->physical = dev_priv->overlay_physical;
1139
1140         return 0;
1141 }
1142
1143 static int i810_fstatus(struct drm_device *dev, void *data,
1144                         struct drm_file *file_priv)
1145 {
1146         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1147
1148         LOCK_TEST_WITH_RETURN(dev, file_priv);
1149         return I810_READ(0x30008);
1150 }
1151
1152 static int i810_ov0_flip(struct drm_device *dev, void *data,
1153                          struct drm_file *file_priv)
1154 {
1155         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1156
1157         LOCK_TEST_WITH_RETURN(dev, file_priv);
1158
1159         /* Tell the overlay to update */
1160         I810_WRITE(0x30000, dev_priv->overlay_physical | 0x80000000);
1161
1162         return 0;
1163 }
1164
1165 /* Not sure why this isn't set all the time:
1166  */
1167 static void i810_do_init_pageflip(struct drm_device *dev)
1168 {
1169         drm_i810_private_t *dev_priv = dev->dev_private;
1170
1171         DRM_DEBUG("\n");
1172         dev_priv->page_flipping = 1;
1173         dev_priv->current_page = 0;
1174         dev_priv->sarea_priv->pf_current_page = dev_priv->current_page;
1175 }
1176
1177 static int i810_do_cleanup_pageflip(struct drm_device *dev)
1178 {
1179         drm_i810_private_t *dev_priv = dev->dev_private;
1180
1181         DRM_DEBUG("\n");
1182         if (dev_priv->current_page != 0)
1183                 i810_dma_dispatch_flip(dev);
1184
1185         dev_priv->page_flipping = 0;
1186         return 0;
1187 }
1188
1189 static int i810_flip_bufs(struct drm_device *dev, void *data,
1190                           struct drm_file *file_priv)
1191 {
1192         drm_i810_private_t *dev_priv = dev->dev_private;
1193
1194         DRM_DEBUG("\n");
1195
1196         LOCK_TEST_WITH_RETURN(dev, file_priv);
1197
1198         if (!dev_priv->page_flipping)
1199                 i810_do_init_pageflip(dev);
1200
1201         i810_dma_dispatch_flip(dev);
1202         return 0;
1203 }
1204
1205 int i810_driver_load(struct drm_device *dev, unsigned long flags)
1206 {
1207         /* i810 has 4 more counters */
1208         dev->counters += 4;
1209         dev->types[6] = _DRM_STAT_IRQ;
1210         dev->types[7] = _DRM_STAT_PRIMARY;
1211         dev->types[8] = _DRM_STAT_SECONDARY;
1212         dev->types[9] = _DRM_STAT_DMA;
1213
1214         return 0;
1215 }
1216
1217 void i810_driver_lastclose(struct drm_device *dev)
1218 {
1219         i810_dma_cleanup(dev);
1220 }
1221
1222 void i810_driver_preclose(struct drm_device *dev, struct drm_file *file_priv)
1223 {
1224         if (dev->dev_private) {
1225                 drm_i810_private_t *dev_priv = dev->dev_private;
1226                 if (dev_priv->page_flipping)
1227                         i810_do_cleanup_pageflip(dev);
1228         }
1229 }
1230
1231 void i810_driver_reclaim_buffers_locked(struct drm_device *dev,
1232                                         struct drm_file *file_priv)
1233 {
1234         i810_reclaim_buffers(dev, file_priv);
1235 }
1236
1237 int i810_driver_dma_quiescent(struct drm_device *dev)
1238 {
1239         i810_dma_quiescent(dev);
1240         return 0;
1241 }
1242
1243 struct drm_ioctl_desc i810_ioctls[] = {
1244         DRM_IOCTL_DEF(DRM_I810_INIT, i810_dma_init, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
1245         DRM_IOCTL_DEF(DRM_I810_VERTEX, i810_dma_vertex, DRM_AUTH),
1246         DRM_IOCTL_DEF(DRM_I810_CLEAR, i810_clear_bufs, DRM_AUTH),
1247         DRM_IOCTL_DEF(DRM_I810_FLUSH, i810_flush_ioctl, DRM_AUTH),
1248         DRM_IOCTL_DEF(DRM_I810_GETAGE, i810_getage, DRM_AUTH),
1249         DRM_IOCTL_DEF(DRM_I810_GETBUF, i810_getbuf, DRM_AUTH),
1250         DRM_IOCTL_DEF(DRM_I810_SWAP, i810_swap_bufs, DRM_AUTH),
1251         DRM_IOCTL_DEF(DRM_I810_COPY, i810_copybuf, DRM_AUTH),
1252         DRM_IOCTL_DEF(DRM_I810_DOCOPY, i810_docopy, DRM_AUTH),
1253         DRM_IOCTL_DEF(DRM_I810_OV0INFO, i810_ov0_info, DRM_AUTH),
1254         DRM_IOCTL_DEF(DRM_I810_FSTATUS, i810_fstatus, DRM_AUTH),
1255         DRM_IOCTL_DEF(DRM_I810_OV0FLIP, i810_ov0_flip, DRM_AUTH),
1256         DRM_IOCTL_DEF(DRM_I810_MC, i810_dma_mc, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
1257         DRM_IOCTL_DEF(DRM_I810_RSTATUS, i810_rstatus, DRM_AUTH),
1258         DRM_IOCTL_DEF(DRM_I810_FLIP, i810_flip_bufs, DRM_AUTH)
1259 };
1260
1261 int i810_max_ioctl = DRM_ARRAY_SIZE(i810_ioctls);
1262
1263 /**
1264  * Determine if the device really is AGP or not.
1265  *
1266  * All Intel graphics chipsets are treated as AGP, even if they are really
1267  * PCI-e.
1268  *
1269  * \param dev   The device to be tested.
1270  *
1271  * \returns
1272  * A value of 1 is always retured to indictate every i810 is AGP.
1273  */
1274 int i810_driver_device_is_agp(struct drm_device *dev)
1275 {
1276         return 1;
1277 }