drivers/gpu/drm/i810/i810_dma.c

   1 /* i810_dma.c -- DMA support for the i810 -*- linux-c -*-
   2  * Created: Mon Dec 13 01:50:01 1999 by jhartmann@precisioninsight.com
   3  *
   4  * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
   5  * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
   6  * All Rights Reserved.
   7  *
   8  * Permission is hereby granted, free of charge, to any person obtaining a
   9  * copy of this software and associated documentation files (the "Software"),
  10  * to deal in the Software without restriction, including without limitation
  11  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  12  * and/or sell copies of the Software, and to permit persons to whom the
  13  * Software is furnished to do so, subject to the following conditions:
  14  *
  15  * The above copyright notice and this permission notice (including the next
  16  * paragraph) shall be included in all copies or substantial portions of the
  17  * Software.
  18  *
  19  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  20  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  21  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  22  * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
  23  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  24  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  25  * DEALINGS IN THE SOFTWARE.
  26  *
  27  * Authors: Rickard E. (Rik) Faith <faith@valinux.com>
  28  *          Jeff Hartmann <jhartmann@valinux.com>
  29  *          Keith Whitwell <keith@tungstengraphics.com>
  30  *
  31  */
  32
  33 #include <drm/drmP.h>
  34 #include <drm/i810_drm.h>
  35 #include "i810_drv.h"
  36 #include <linux/interrupt.h>    /* For task queue support */
  37 #include <linux/delay.h>
  38 #include <linux/slab.h>
  39 #include <linux/pagemap.h>
  40
  41 #define I810_BUF_FREE           2
  42 #define I810_BUF_CLIENT         1
  43 #define I810_BUF_HARDWARE       0
  44
  45 #define I810_BUF_UNMAPPED 0
  46 #define I810_BUF_MAPPED   1
  47
  48 static struct drm_buf *i810_freelist_get(struct drm_device * dev)
  49 {
  50         struct drm_device_dma *dma = dev->dma;
  51         int i;
  52         int used;
  53
  54         /* Linear search might not be the best solution */
  55
  56         for (i = 0; i < dma->buf_count; i++) {
  57                 struct drm_buf *buf = dma->buflist[i];
  58                 drm_i810_buf_priv_t *buf_priv = buf->dev_private;
  59                 /* In use is already a pointer */
  60                 used = cmpxchg(buf_priv->in_use, I810_BUF_FREE,
  61                                I810_BUF_CLIENT);
  62                 if (used == I810_BUF_FREE)
  63                         return buf;
  64         }
  65         return NULL;
  66 }
  67
  68 /* This should only be called if the buffer is not sent to the hardware
  69  * yet, the hardware updates in use for us once its on the ring buffer.
  70  */
  71
  72 static int i810_freelist_put(struct drm_device *dev, struct drm_buf *buf)
  73 {
  74         drm_i810_buf_priv_t *buf_priv = buf->dev_private;
  75         int used;
  76
  77         /* In use is already a pointer */
  78         used = cmpxchg(buf_priv->in_use, I810_BUF_CLIENT, I810_BUF_FREE);
  79         if (used != I810_BUF_CLIENT) {
  80                 DRM_ERROR("Freeing buffer thats not in use : %d\n", buf->idx);
  81                 return -EINVAL;
  82         }
  83
  84         return 0;
  85 }
  86
  87 static int i810_mmap_buffers(struct file *filp, struct vm_area_struct *vma)
  88 {
  89         struct drm_file *priv = filp->private_data;
  90         struct drm_device *dev;
  91         drm_i810_private_t *dev_priv;
  92         struct drm_buf *buf;
  93         drm_i810_buf_priv_t *buf_priv;
  94
  95         dev = priv->minor->dev;
  96         dev_priv = dev->dev_private;
  97         buf = dev_priv->mmap_buffer;
  98         buf_priv = buf->dev_private;
  99
 100         vma->vm_flags |= VM_DONTCOPY;
 101
 102         buf_priv->currently_mapped = I810_BUF_MAPPED;
 103
 104         if (io_remap_pfn_range(vma, vma->vm_start,
 105                                vma->vm_pgoff,
 106                                vma->vm_end - vma->vm_start, vma->vm_page_prot))
 107                 return -EAGAIN;
 108         return 0;
 109 }
 110
 111 static const struct file_operations i810_buffer_fops = {
 112         .open = drm_open,
 113         .release = drm_release,
 114         .unlocked_ioctl = drm_ioctl,
 115         .mmap = i810_mmap_buffers,
 116 #ifdef CONFIG_COMPAT
 117         .compat_ioctl = drm_compat_ioctl,
 118 #endif
 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         /* This is all entirely broken */
 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 *)vm_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
 149         return retcode;
 150 }
 151
 152 static int i810_unmap_buffer(struct drm_buf *buf)
 153 {
 154         drm_i810_buf_priv_t *buf_priv = buf->dev_private;
 155         int retcode = 0;
 156
 157         if (buf_priv->currently_mapped != I810_BUF_MAPPED)
 158                 return -EINVAL;
 159
 160         retcode = vm_munmap((unsigned long)buf_priv->virtual,
 161                             (size_t) buf->total);
 162
 163         buf_priv->currently_mapped = I810_BUF_UNMAPPED;
 164         buf_priv->virtual = NULL;
 165
 166         return retcode;
 167 }
 168
 169 static int i810_dma_get_buffer(struct drm_device *dev, drm_i810_dma_t *d,
 170                                struct drm_file *file_priv)
 171 {
 172         struct drm_buf *buf;
 173         drm_i810_buf_priv_t *buf_priv;
 174         int retcode = 0;
 175
 176         buf = i810_freelist_get(dev);
 177         if (!buf) {
 178                 retcode = -ENOMEM;
 179                 DRM_DEBUG("retcode=%d\n", retcode);
 180                 return retcode;
 181         }
 182
 183         retcode = i810_map_buffer(buf, file_priv);
 184         if (retcode) {
 185                 i810_freelist_put(dev, buf);
 186                 DRM_ERROR("mapbuf failed, retcode %d\n", retcode);
 187                 return retcode;
 188         }
 189         buf->file_priv = file_priv;
 190         buf_priv = buf->dev_private;
 191         d->granted = 1;
 192         d->request_idx = buf->idx;
 193         d->request_size = buf->total;
 194         d->virtual = buf_priv->virtual;
 195
 196         return retcode;
 197 }
 198
 199 static int i810_dma_cleanup(struct drm_device *dev)
 200 {
 201         struct drm_device_dma *dma = dev->dma;
 202
 203         /* Make sure interrupts are disabled here because the uninstall ioctl
 204          * may not have been called from userspace and after dev_private
 205          * is freed, it's too late.
 206          */
 207         if (drm_core_check_feature(dev, DRIVER_HAVE_IRQ) && dev->irq_enabled)
 208                 drm_irq_uninstall(dev);
 209
 210         if (dev->dev_private) {
 211                 int i;
 212                 drm_i810_private_t *dev_priv =
 213                     (drm_i810_private_t *) dev->dev_private;
 214
 215                 if (dev_priv->ring.virtual_start)
 216                         drm_core_ioremapfree(&dev_priv->ring.map, dev);
 217                 if (dev_priv->hw_status_page) {
 218                         pci_free_consistent(dev->pdev, PAGE_SIZE,
 219                                             dev_priv->hw_status_page,
 220                                             dev_priv->dma_status_page);
 221                 }
 222                 kfree(dev->dev_private);
 223                 dev->dev_private = NULL;
 224
 225                 for (i = 0; i < dma->buf_count; i++) {
 226                         struct drm_buf *buf = dma->buflist[i];
 227                         drm_i810_buf_priv_t *buf_priv = buf->dev_private;
 228
 229                         if (buf_priv->kernel_virtual && buf->total)
 230                                 drm_core_ioremapfree(&buf_priv->map, dev);
 231                 }
 232         }
 233         return 0;
 234 }
 235
 236 static int i810_wait_ring(struct drm_device *dev, int n)
 237 {
 238         drm_i810_private_t *dev_priv = dev->dev_private;
 239         drm_i810_ring_buffer_t *ring = &(dev_priv->ring);
 240         int iters = 0;
 241         unsigned long end;
 242         unsigned int last_head = I810_READ(LP_RING + RING_HEAD) & HEAD_ADDR;
 243
 244         end = jiffies + (HZ * 3);
 245         while (ring->space < n) {
 246                 ring->head = I810_READ(LP_RING + RING_HEAD) & HEAD_ADDR;
 247                 ring->space = ring->head - (ring->tail + 8);
 248                 if (ring->space < 0)
 249                         ring->space += ring->Size;
 250
 251                 if (ring->head != last_head) {
 252                         end = jiffies + (HZ * 3);
 253                         last_head = ring->head;
 254                 }
 255
 256                 iters++;
 257                 if (time_before(end, jiffies)) {
 258                         DRM_ERROR("space: %d wanted %d\n", ring->space, n);
 259                         DRM_ERROR("lockup\n");
 260                         goto out_wait_ring;
 261                 }
 262                 udelay(1);
 263         }
 264
 265 out_wait_ring:
 266         return iters;
 267 }
 268
 269 static void i810_kernel_lost_context(struct drm_device *dev)
 270 {
 271         drm_i810_private_t *dev_priv = dev->dev_private;
 272         drm_i810_ring_buffer_t *ring = &(dev_priv->ring);
 273
 274         ring->head = I810_READ(LP_RING + RING_HEAD) & HEAD_ADDR;
 275         ring->tail = I810_READ(LP_RING + RING_TAIL);
 276         ring->space = ring->head - (ring->tail + 8);
 277         if (ring->space < 0)
 278                 ring->space += ring->Size;
 279 }
 280
 281 static int i810_freelist_init(struct drm_device *dev, drm_i810_private_t *dev_priv)
 282 {
 283         struct drm_device_dma *dma = dev->dma;
 284         int my_idx = 24;
 285         u32 *hw_status = (u32 *) (dev_priv->hw_status_page + my_idx);
 286         int i;
 287
 288         if (dma->buf_count > 1019) {
 289                 /* Not enough space in the status page for the freelist */
 290                 return -EINVAL;
 291         }
 292
 293         for (i = 0; i < dma->buf_count; i++) {
 294                 struct drm_buf *buf = dma->buflist[i];
 295                 drm_i810_buf_priv_t *buf_priv = buf->dev_private;
 296
 297                 buf_priv->in_use = hw_status++;
 298                 buf_priv->my_use_idx = my_idx;
 299                 my_idx += 4;
 300
 301                 *buf_priv->in_use = I810_BUF_FREE;
 302
 303                 buf_priv->map.offset = buf->bus_address;
 304                 buf_priv->map.size = buf->total;
 305                 buf_priv->map.type = _DRM_AGP;
 306                 buf_priv->map.flags = 0;
 307                 buf_priv->map.mtrr = 0;
 308
 309                 drm_core_ioremap(&buf_priv->map, dev);
 310                 buf_priv->kernel_virtual = buf_priv->map.handle;
 311
 312         }
 313         return 0;
 314 }
 315
 316 static int i810_dma_initialize(struct drm_device *dev,
 317                                drm_i810_private_t *dev_priv,
 318                                drm_i810_init_t *init)
 319 {
 320         struct drm_map_list *r_list;
 321         memset(dev_priv, 0, sizeof(drm_i810_private_t));
 322
 323         list_for_each_entry(r_list, &dev->maplist, head) {
 324                 if (r_list->map &&
 325                     r_list->map->type == _DRM_SHM &&
 326                     r_list->map->flags & _DRM_CONTAINS_LOCK) {
 327                         dev_priv->sarea_map = r_list->map;
 328                         break;
 329                 }
 330         }
 331         if (!dev_priv->sarea_map) {
 332                 dev->dev_private = (void *)dev_priv;
 333                 i810_dma_cleanup(dev);
 334                 DRM_ERROR("can not find sarea!\n");
 335                 return -EINVAL;
 336         }
 337         dev_priv->mmio_map = drm_core_findmap(dev, init->mmio_offset);
 338         if (!dev_priv->mmio_map) {
 339                 dev->dev_private = (void *)dev_priv;
 340                 i810_dma_cleanup(dev);
 341                 DRM_ERROR("can not find mmio map!\n");
 342                 return -EINVAL;
 343         }
 344         dev->agp_buffer_token = init->buffers_offset;
 345         dev->agp_buffer_map = drm_core_findmap(dev, init->buffers_offset);
 346         if (!dev->agp_buffer_map) {
 347                 dev->dev_private = (void *)dev_priv;
 348                 i810_dma_cleanup(dev);
 349                 DRM_ERROR("can not find dma buffer map!\n");
 350                 return -EINVAL;
 351         }
 352
 353         dev_priv->sarea_priv = (drm_i810_sarea_t *)
 354             ((u8 *) dev_priv->sarea_map->handle + init->sarea_priv_offset);
 355
 356         dev_priv->ring.Start = init->ring_start;
 357         dev_priv->ring.End = init->ring_end;
 358         dev_priv->ring.Size = init->ring_size;
 359
 360         dev_priv->ring.map.offset = dev->agp->base + init->ring_start;
 361         dev_priv->ring.map.size = init->ring_size;
 362         dev_priv->ring.map.type = _DRM_AGP;
 363         dev_priv->ring.map.flags = 0;
 364         dev_priv->ring.map.mtrr = 0;
 365
 366         drm_core_ioremap(&dev_priv->ring.map, dev);
 367
 368         if (dev_priv->ring.map.handle == NULL) {
 369                 dev->dev_private = (void *)dev_priv;
 370                 i810_dma_cleanup(dev);
 371                 DRM_ERROR("can not ioremap virtual address for"
 372                           " ring buffer\n");
 373                 return -ENOMEM;
 374         }
 375
 376         dev_priv->ring.virtual_start = dev_priv->ring.map.handle;
 377
 378         dev_priv->ring.tail_mask = dev_priv->ring.Size - 1;
 379
 380         dev_priv->w = init->w;
 381         dev_priv->h = init->h;
 382         dev_priv->pitch = init->pitch;
 383         dev_priv->back_offset = init->back_offset;
 384         dev_priv->depth_offset = init->depth_offset;
 385         dev_priv->front_offset = init->front_offset;
 386
 387         dev_priv->overlay_offset = init->overlay_offset;
 388         dev_priv->overlay_physical = init->overlay_physical;
 389
 390         dev_priv->front_di1 = init->front_offset | init->pitch_bits;
 391         dev_priv->back_di1 = init->back_offset | init->pitch_bits;
 392         dev_priv->zi1 = init->depth_offset | init->pitch_bits;
 393
 394         /* Program Hardware Status Page */
 395         dev_priv->hw_status_page =
 396             pci_alloc_consistent(dev->pdev, PAGE_SIZE,
 397                                  &dev_priv->dma_status_page);
 398         if (!dev_priv->hw_status_page) {
 399                 dev->dev_private = (void *)dev_priv;
 400                 i810_dma_cleanup(dev);
 401                 DRM_ERROR("Can not allocate hardware status page\n");
 402                 return -ENOMEM;
 403         }
 404         memset(dev_priv->hw_status_page, 0, PAGE_SIZE);
 405         DRM_DEBUG("hw status page @ %p\n", dev_priv->hw_status_page);
 406
 407         I810_WRITE(0x02080, dev_priv->dma_status_page);
 408         DRM_DEBUG("Enabled hardware status page\n");
 409
 410         /* Now we need to init our freelist */
 411         if (i810_freelist_init(dev, dev_priv) != 0) {
 412                 dev->dev_private = (void *)dev_priv;
 413                 i810_dma_cleanup(dev);
 414                 DRM_ERROR("Not enough space in the status page for"
 415                           " the freelist\n");
 416                 return -ENOMEM;
 417         }
 418         dev->dev_private = (void *)dev_priv;
 419
 420         return 0;
 421 }
 422
 423 static int i810_dma_init(struct drm_device *dev, void *data,
 424                          struct drm_file *file_priv)
 425 {
 426         drm_i810_private_t *dev_priv;
 427         drm_i810_init_t *init = data;
 428         int retcode = 0;
 429
 430         switch (init->func) {
 431         case I810_INIT_DMA_1_4:
 432                 DRM_INFO("Using v1.4 init.\n");
 433                 dev_priv = kmalloc(sizeof(drm_i810_private_t), GFP_KERNEL);
 434                 if (dev_priv == NULL)
 435                         return -ENOMEM;
 436                 retcode = i810_dma_initialize(dev, dev_priv, init);
 437                 break;
 438
 439         case I810_CLEANUP_DMA:
 440                 DRM_INFO("DMA Cleanup\n");
 441                 retcode = i810_dma_cleanup(dev);
 442                 break;
 443         default:
 444                 return -EINVAL;
 445         }
 446
 447         return retcode;
 448 }
 449
 450 /* Most efficient way to verify state for the i810 is as it is
 451  * emitted.  Non-conformant state is silently dropped.
 452  *
 453  * Use 'volatile' & local var tmp to force the emitted values to be
 454  * identical to the verified ones.
 455  */
 456 static void i810EmitContextVerified(struct drm_device *dev,
 457                                     volatile unsigned int *code)
 458 {
 459         drm_i810_private_t *dev_priv = dev->dev_private;
 460         int i, j = 0;
 461         unsigned int tmp;
 462         RING_LOCALS;
 463
 464         BEGIN_LP_RING(I810_CTX_SETUP_SIZE);
 465
 466         OUT_RING(GFX_OP_COLOR_FACTOR);
 467         OUT_RING(code[I810_CTXREG_CF1]);
 468
 469         OUT_RING(GFX_OP_STIPPLE);
 470         OUT_RING(code[I810_CTXREG_ST1]);
 471
 472         for (i = 4; i < I810_CTX_SETUP_SIZE; i++) {
 473                 tmp = code[i];
 474
 475                 if ((tmp & (7 << 29)) == (3 << 29) &&
 476                     (tmp & (0x1f << 24)) < (0x1d << 24)) {
 477                         OUT_RING(tmp);
 478                         j++;
 479                 } else
 480                         printk("constext state dropped!!!\n");
 481         }
 482
 483         if (j & 1)
 484                 OUT_RING(0);
 485
 486         ADVANCE_LP_RING();
 487 }
 488
 489 static void i810EmitTexVerified(struct drm_device *dev, volatile unsigned int *code)
 490 {
 491         drm_i810_private_t *dev_priv = dev->dev_private;
 492         int i, j = 0;
 493         unsigned int tmp;
 494         RING_LOCALS;
 495
 496         BEGIN_LP_RING(I810_TEX_SETUP_SIZE);
 497
 498         OUT_RING(GFX_OP_MAP_INFO);
 499         OUT_RING(code[I810_TEXREG_MI1]);
 500         OUT_RING(code[I810_TEXREG_MI2]);
 501         OUT_RING(code[I810_TEXREG_MI3]);
 502
 503         for (i = 4; i < I810_TEX_SETUP_SIZE; i++) {
 504                 tmp = code[i];
 505
 506                 if ((tmp & (7 << 29)) == (3 << 29) &&
 507                     (tmp & (0x1f << 24)) < (0x1d << 24)) {
 508                         OUT_RING(tmp);
 509                         j++;
 510                 } else
 511                         printk("texture state dropped!!!\n");
 512         }
 513
 514         if (j & 1)
 515                 OUT_RING(0);
 516
 517         ADVANCE_LP_RING();
 518 }
 519
 520 /* Need to do some additional checking when setting the dest buffer.
 521  */
 522 static void i810EmitDestVerified(struct drm_device *dev,
 523                                  volatile unsigned int *code)
 524 {
 525         drm_i810_private_t *dev_priv = dev->dev_private;
 526         unsigned int tmp;
 527         RING_LOCALS;
 528
 529         BEGIN_LP_RING(I810_DEST_SETUP_SIZE + 2);
 530
 531         tmp = code[I810_DESTREG_DI1];
 532         if (tmp == dev_priv->front_di1 || tmp == dev_priv->back_di1) {
 533                 OUT_RING(CMD_OP_DESTBUFFER_INFO);
 534                 OUT_RING(tmp);
 535         } else
 536                 DRM_DEBUG("bad di1 %x (allow %x or %x)\n",
 537                           tmp, dev_priv->front_di1, dev_priv->back_di1);
 538
 539         /* invarient:
 540          */
 541         OUT_RING(CMD_OP_Z_BUFFER_INFO);
 542         OUT_RING(dev_priv->zi1);
 543
 544         OUT_RING(GFX_OP_DESTBUFFER_VARS);
 545         OUT_RING(code[I810_DESTREG_DV1]);
 546
 547         OUT_RING(GFX_OP_DRAWRECT_INFO);
 548         OUT_RING(code[I810_DESTREG_DR1]);
 549         OUT_RING(code[I810_DESTREG_DR2]);
 550         OUT_RING(code[I810_DESTREG_DR3]);
 551         OUT_RING(code[I810_DESTREG_DR4]);
 552         OUT_RING(0);
 553
 554         ADVANCE_LP_RING();
 555 }
 556
 557 static void i810EmitState(struct drm_device *dev)
 558 {
 559         drm_i810_private_t *dev_priv = dev->dev_private;
 560         drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
 561         unsigned int dirty = sarea_priv->dirty;
 562
 563         DRM_DEBUG("%x\n", dirty);
 564
 565         if (dirty & I810_UPLOAD_BUFFERS) {
 566                 i810EmitDestVerified(dev, sarea_priv->BufferState);
 567                 sarea_priv->dirty &= ~I810_UPLOAD_BUFFERS;
 568         }
 569
 570         if (dirty & I810_UPLOAD_CTX) {
 571                 i810EmitContextVerified(dev, sarea_priv->ContextState);
 572                 sarea_priv->dirty &= ~I810_UPLOAD_CTX;
 573         }
 574
 575         if (dirty & I810_UPLOAD_TEX0) {
 576                 i810EmitTexVerified(dev, sarea_priv->TexState[0]);
 577                 sarea_priv->dirty &= ~I810_UPLOAD_TEX0;
 578         }
 579
 580         if (dirty & I810_UPLOAD_TEX1) {
 581                 i810EmitTexVerified(dev, sarea_priv->TexState[1]);
 582                 sarea_priv->dirty &= ~I810_UPLOAD_TEX1;
 583         }
 584 }
 585
 586 /* need to verify
 587  */
 588 static void i810_dma_dispatch_clear(struct drm_device *dev, int flags,
 589                                     unsigned int clear_color,
 590                                     unsigned int clear_zval)
 591 {
 592         drm_i810_private_t *dev_priv = dev->dev_private;
 593         drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
 594         int nbox = sarea_priv->nbox;
 595         struct drm_clip_rect *pbox = sarea_priv->boxes;
 596         int pitch = dev_priv->pitch;
 597         int cpp = 2;
 598         int i;
 599         RING_LOCALS;
 600
 601         if (dev_priv->current_page == 1) {
 602                 unsigned int tmp = flags;
 603
 604                 flags &= ~(I810_FRONT | I810_BACK);
 605                 if (tmp & I810_FRONT)
 606                         flags |= I810_BACK;
 607                 if (tmp & I810_BACK)
 608                         flags |= I810_FRONT;
 609         }
 610
 611         i810_kernel_lost_context(dev);
 612
 613         if (nbox > I810_NR_SAREA_CLIPRECTS)
 614                 nbox = I810_NR_SAREA_CLIPRECTS;
 615
 616         for (i = 0; i < nbox; i++, pbox++) {
 617                 unsigned int x = pbox->x1;
 618                 unsigned int y = pbox->y1;
 619                 unsigned int width = (pbox->x2 - x) * cpp;
 620                 unsigned int height = pbox->y2 - y;
 621                 unsigned int start = y * pitch + x * cpp;
 622
 623                 if (pbox->x1 > pbox->x2 ||
 624                     pbox->y1 > pbox->y2 ||
 625                     pbox->x2 > dev_priv->w || pbox->y2 > dev_priv->h)
 626                         continue;
 627
 628                 if (flags & I810_FRONT) {
 629                         BEGIN_LP_RING(6);
 630                         OUT_RING(BR00_BITBLT_CLIENT | BR00_OP_COLOR_BLT | 0x3);
 631                         OUT_RING(BR13_SOLID_PATTERN | (0xF0 << 16) | pitch);
 632                         OUT_RING((height << 16) | width);
 633                         OUT_RING(start);
 634                         OUT_RING(clear_color);
 635                         OUT_RING(0);
 636                         ADVANCE_LP_RING();
 637                 }
 638
 639                 if (flags & I810_BACK) {
 640                         BEGIN_LP_RING(6);
 641                         OUT_RING(BR00_BITBLT_CLIENT | BR00_OP_COLOR_BLT | 0x3);
 642                         OUT_RING(BR13_SOLID_PATTERN | (0xF0 << 16) | pitch);
 643                         OUT_RING((height << 16) | width);
 644                         OUT_RING(dev_priv->back_offset + start);
 645                         OUT_RING(clear_color);
 646                         OUT_RING(0);
 647                         ADVANCE_LP_RING();
 648                 }
 649
 650                 if (flags & I810_DEPTH) {
 651                         BEGIN_LP_RING(6);
 652                         OUT_RING(BR00_BITBLT_CLIENT | BR00_OP_COLOR_BLT | 0x3);
 653                         OUT_RING(BR13_SOLID_PATTERN | (0xF0 << 16) | pitch);
 654                         OUT_RING((height << 16) | width);
 655                         OUT_RING(dev_priv->depth_offset + start);
 656                         OUT_RING(clear_zval);
 657                         OUT_RING(0);
 658                         ADVANCE_LP_RING();
 659                 }
 660         }
 661 }
 662
 663 static void i810_dma_dispatch_swap(struct drm_device *dev)
 664 {
 665         drm_i810_private_t *dev_priv = dev->dev_private;
 666         drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
 667         int nbox = sarea_priv->nbox;
 668         struct drm_clip_rect *pbox = sarea_priv->boxes;
 669         int pitch = dev_priv->pitch;
 670         int cpp = 2;
 671         int i;
 672         RING_LOCALS;
 673
 674         DRM_DEBUG("swapbuffers\n");
 675
 676         i810_kernel_lost_context(dev);
 677
 678         if (nbox > I810_NR_SAREA_CLIPRECTS)
 679                 nbox = I810_NR_SAREA_CLIPRECTS;
 680
 681         for (i = 0; i < nbox; i++, pbox++) {
 682                 unsigned int w = pbox->x2 - pbox->x1;
 683                 unsigned int h = pbox->y2 - pbox->y1;
 684                 unsigned int dst = pbox->x1 * cpp + pbox->y1 * pitch;
 685                 unsigned int start = dst;
 686
 687                 if (pbox->x1 > pbox->x2 ||
 688                     pbox->y1 > pbox->y2 ||
 689                     pbox->x2 > dev_priv->w || pbox->y2 > dev_priv->h)
 690                         continue;
 691
 692                 BEGIN_LP_RING(6);
 693                 OUT_RING(BR00_BITBLT_CLIENT | BR00_OP_SRC_COPY_BLT | 0x4);
 694                 OUT_RING(pitch | (0xCC << 16));
 695                 OUT_RING((h << 16) | (w * cpp));
 696                 if (dev_priv->current_page == 0)
 697                         OUT_RING(dev_priv->front_offset + start);
 698                 else
 699                         OUT_RING(dev_priv->back_offset + start);
 700                 OUT_RING(pitch);
 701                 if (dev_priv->current_page == 0)
 702                         OUT_RING(dev_priv->back_offset + start);
 703                 else
 704                         OUT_RING(dev_priv->front_offset + start);
 705                 ADVANCE_LP_RING();
 706         }
 707 }
 708
 709 static void i810_dma_dispatch_vertex(struct drm_device *dev,
 710                                      struct drm_buf *buf, int discard, int used)
 711 {
 712         drm_i810_private_t *dev_priv = dev->dev_private;
 713         drm_i810_buf_priv_t *buf_priv = buf->dev_private;
 714         drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
 715         struct drm_clip_rect *box = sarea_priv->boxes;
 716         int nbox = sarea_priv->nbox;
 717         unsigned long address = (unsigned long)buf->bus_address;
 718         unsigned long start = address - dev->agp->base;
 719         int i = 0;
 720         RING_LOCALS;
 721
 722         i810_kernel_lost_context(dev);
 723
 724         if (nbox > I810_NR_SAREA_CLIPRECTS)
 725                 nbox = I810_NR_SAREA_CLIPRECTS;
 726
 727         if (used > 4 * 1024)
 728                 used = 0;
 729
 730         if (sarea_priv->dirty)
 731                 i810EmitState(dev);
 732
 733         if (buf_priv->currently_mapped == I810_BUF_MAPPED) {
 734                 unsigned int prim = (sarea_priv->vertex_prim & PR_MASK);
 735
 736                 *(u32 *) buf_priv->kernel_virtual =
 737                     ((GFX_OP_PRIMITIVE | prim | ((used / 4) - 2)));
 738
 739                 if (used & 4) {
 740                         *(u32 *) ((char *) buf_priv->kernel_virtual + used) = 0;
 741                         used += 4;
 742                 }
 743
 744                 i810_unmap_buffer(buf);
 745         }
 746
 747         if (used) {
 748                 do {
 749                         if (i < nbox) {
 750                                 BEGIN_LP_RING(4);
 751                                 OUT_RING(GFX_OP_SCISSOR | SC_UPDATE_SCISSOR |
 752                                          SC_ENABLE);
 753                                 OUT_RING(GFX_OP_SCISSOR_INFO);
 754                                 OUT_RING(box[i].x1 | (box[i].y1 << 16));
 755                                 OUT_RING((box[i].x2 -
 756                                           1) | ((box[i].y2 - 1) << 16));
 757                                 ADVANCE_LP_RING();
 758                         }
 759
 760                         BEGIN_LP_RING(4);
 761                         OUT_RING(CMD_OP_BATCH_BUFFER);
 762                         OUT_RING(start | BB1_PROTECTED);
 763                         OUT_RING(start + used - 4);
 764                         OUT_RING(0);
 765                         ADVANCE_LP_RING();
 766
 767                 } while (++i < nbox);
 768         }
 769
 770         if (discard) {
 771                 dev_priv->counter++;
 772
 773                 (void)cmpxchg(buf_priv->in_use, I810_BUF_CLIENT,
 774                               I810_BUF_HARDWARE);
 775
 776                 BEGIN_LP_RING(8);
 777                 OUT_RING(CMD_STORE_DWORD_IDX);
 778                 OUT_RING(20);
 779                 OUT_RING(dev_priv->counter);
 780                 OUT_RING(CMD_STORE_DWORD_IDX);
 781                 OUT_RING(buf_priv->my_use_idx);
 782                 OUT_RING(I810_BUF_FREE);
 783                 OUT_RING(CMD_REPORT_HEAD);
 784                 OUT_RING(0);
 785                 ADVANCE_LP_RING();
 786         }
 787 }
 788
 789 static void i810_dma_dispatch_flip(struct drm_device *dev)
 790 {
 791         drm_i810_private_t *dev_priv = dev->dev_private;
 792         int pitch = dev_priv->pitch;
 793         RING_LOCALS;
 794
 795         DRM_DEBUG("page=%d pfCurrentPage=%d\n",
 796                   dev_priv->current_page,
 797                   dev_priv->sarea_priv->pf_current_page);
 798
 799         i810_kernel_lost_context(dev);
 800
 801         BEGIN_LP_RING(2);
 802         OUT_RING(INST_PARSER_CLIENT | INST_OP_FLUSH | INST_FLUSH_MAP_CACHE);
 803         OUT_RING(0);
 804         ADVANCE_LP_RING();
 805
 806         BEGIN_LP_RING(I810_DEST_SETUP_SIZE + 2);
 807         /* On i815 at least ASYNC is buggy */
 808         /* pitch<<5 is from 11.2.8 p158,
 809            its the pitch / 8 then left shifted 8,
 810            so (pitch >> 3) << 8 */
 811         OUT_RING(CMD_OP_FRONTBUFFER_INFO | (pitch << 5) /*| ASYNC_FLIP */ );
 812         if (dev_priv->current_page == 0) {
 813                 OUT_RING(dev_priv->back_offset);
 814                 dev_priv->current_page = 1;
 815         } else {
 816                 OUT_RING(dev_priv->front_offset);
 817                 dev_priv->current_page = 0;
 818         }
 819         OUT_RING(0);
 820         ADVANCE_LP_RING();
 821
 822         BEGIN_LP_RING(2);
 823         OUT_RING(CMD_OP_WAIT_FOR_EVENT | WAIT_FOR_PLANE_A_FLIP);
 824         OUT_RING(0);
 825         ADVANCE_LP_RING();
 826
 827         /* Increment the frame counter.  The client-side 3D driver must
 828          * throttle the framerate by waiting for this value before
 829          * performing the swapbuffer ioctl.
 830          */
 831         dev_priv->sarea_priv->pf_current_page = dev_priv->current_page;
 832
 833 }
 834
 835 static void i810_dma_quiescent(struct drm_device *dev)
 836 {
 837         drm_i810_private_t *dev_priv = dev->dev_private;
 838         RING_LOCALS;
 839
 840         i810_kernel_lost_context(dev);
 841
 842         BEGIN_LP_RING(4);
 843         OUT_RING(INST_PARSER_CLIENT | INST_OP_FLUSH | INST_FLUSH_MAP_CACHE);
 844         OUT_RING(CMD_REPORT_HEAD);
 845         OUT_RING(0);
 846         OUT_RING(0);
 847         ADVANCE_LP_RING();
 848
 849         i810_wait_ring(dev, dev_priv->ring.Size - 8);
 850 }
 851
 852 static int i810_flush_queue(struct drm_device *dev)
 853 {
 854         drm_i810_private_t *dev_priv = dev->dev_private;
 855         struct drm_device_dma *dma = dev->dma;
 856         int i, ret = 0;
 857         RING_LOCALS;
 858
 859         i810_kernel_lost_context(dev);
 860
 861         BEGIN_LP_RING(2);
 862         OUT_RING(CMD_REPORT_HEAD);
 863         OUT_RING(0);
 864         ADVANCE_LP_RING();
 865
 866         i810_wait_ring(dev, dev_priv->ring.Size - 8);
 867
 868         for (i = 0; i < dma->buf_count; i++) {
 869                 struct drm_buf *buf = dma->buflist[i];
 870                 drm_i810_buf_priv_t *buf_priv = buf->dev_private;
 871
 872                 int used = cmpxchg(buf_priv->in_use, I810_BUF_HARDWARE,
 873                                    I810_BUF_FREE);
 874
 875                 if (used == I810_BUF_HARDWARE)
 876                         DRM_DEBUG("reclaimed from HARDWARE\n");
 877                 if (used == I810_BUF_CLIENT)
 878                         DRM_DEBUG("still on client\n");
 879         }
 880
 881         return ret;
 882 }
 883
 884 /* Must be called with the lock held */
 885 void i810_driver_reclaim_buffers(struct drm_device *dev,
 886                                  struct drm_file *file_priv)
 887 {
 888         struct drm_device_dma *dma = dev->dma;
 889         int i;
 890
 891         if (!dma)
 892                 return;
 893         if (!dev->dev_private)
 894                 return;
 895         if (!dma->buflist)
 896                 return;
 897
 898         i810_flush_queue(dev);
 899
 900         for (i = 0; i < dma->buf_count; i++) {
 901                 struct drm_buf *buf = dma->buflist[i];
 902                 drm_i810_buf_priv_t *buf_priv = buf->dev_private;
 903
 904                 if (buf->file_priv == file_priv && buf_priv) {
 905                         int used = cmpxchg(buf_priv->in_use, I810_BUF_CLIENT,
 906                                            I810_BUF_FREE);
 907
 908                         if (used == I810_BUF_CLIENT)
 909                                 DRM_DEBUG("reclaimed from client\n");
 910                         if (buf_priv->currently_mapped == I810_BUF_MAPPED)
 911                                 buf_priv->currently_mapped = I810_BUF_UNMAPPED;
 912                 }
 913         }
 914 }
 915
 916 static int i810_flush_ioctl(struct drm_device *dev, void *data,
 917                             struct drm_file *file_priv)
 918 {
 919         LOCK_TEST_WITH_RETURN(dev, file_priv);
 920
 921         i810_flush_queue(dev);
 922         return 0;
 923 }
 924
 925 static int i810_dma_vertex(struct drm_device *dev, void *data,
 926                            struct drm_file *file_priv)
 927 {
 928         struct drm_device_dma *dma = dev->dma;
 929         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
 930         u32 *hw_status = dev_priv->hw_status_page;
 931         drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
 932             dev_priv->sarea_priv;
 933         drm_i810_vertex_t *vertex = data;
 934
 935         LOCK_TEST_WITH_RETURN(dev, file_priv);
 936
 937         DRM_DEBUG("idx %d used %d discard %d\n",
 938                   vertex->idx, vertex->used, vertex->discard);
 939
 940         if (vertex->idx < 0 || vertex->idx > dma->buf_count)
 941                 return -EINVAL;
 942
 943         i810_dma_dispatch_vertex(dev,
 944                                  dma->buflist[vertex->idx],
 945                                  vertex->discard, vertex->used);
 946
 947         atomic_add(vertex->used, &dev->counts[_DRM_STAT_SECONDARY]);
 948         atomic_inc(&dev->counts[_DRM_STAT_DMA]);
 949         sarea_priv->last_enqueue = dev_priv->counter - 1;
 950         sarea_priv->last_dispatch = (int)hw_status[5];
 951
 952         return 0;
 953 }
 954
 955 static int i810_clear_bufs(struct drm_device *dev, void *data,
 956                            struct drm_file *file_priv)
 957 {
 958         drm_i810_clear_t *clear = data;
 959
 960         LOCK_TEST_WITH_RETURN(dev, file_priv);
 961
 962         /* GH: Someone's doing nasty things... */
 963         if (!dev->dev_private)
 964                 return -EINVAL;
 965
 966         i810_dma_dispatch_clear(dev, clear->flags,
 967                                 clear->clear_color, clear->clear_depth);
 968         return 0;
 969 }
 970
 971 static int i810_swap_bufs(struct drm_device *dev, void *data,
 972                           struct drm_file *file_priv)
 973 {
 974         DRM_DEBUG("\n");
 975
 976         LOCK_TEST_WITH_RETURN(dev, file_priv);
 977
 978         i810_dma_dispatch_swap(dev);
 979         return 0;
 980 }
 981
 982 static int i810_getage(struct drm_device *dev, void *data,
 983                        struct drm_file *file_priv)
 984 {
 985         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
 986         u32 *hw_status = dev_priv->hw_status_page;
 987         drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
 988             dev_priv->sarea_priv;
 989
 990         sarea_priv->last_dispatch = (int)hw_status[5];
 991         return 0;
 992 }
 993
 994 static int i810_getbuf(struct drm_device *dev, void *data,
 995                        struct drm_file *file_priv)
 996 {
 997         int retcode = 0;
 998         drm_i810_dma_t *d = data;
 999         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1000         u32 *hw_status = dev_priv->hw_status_page;
1001         drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
1002             dev_priv->sarea_priv;
1003
1004         LOCK_TEST_WITH_RETURN(dev, file_priv);
1005
1006         d->granted = 0;
1007
1008         retcode = i810_dma_get_buffer(dev, d, file_priv);
1009
1010         DRM_DEBUG("i810_dma: %d returning %d, granted = %d\n",
1011                   task_pid_nr(current), retcode, d->granted);
1012
1013         sarea_priv->last_dispatch = (int)hw_status[5];
1014
1015         return retcode;
1016 }
1017
1018 static int i810_copybuf(struct drm_device *dev, void *data,
1019                         struct drm_file *file_priv)
1020 {
1021         /* Never copy - 2.4.x doesn't need it */
1022         return 0;
1023 }
1024
1025 static int i810_docopy(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 void i810_dma_dispatch_mc(struct drm_device *dev, struct drm_buf *buf, int used,
1033                                  unsigned int last_render)
1034 {
1035         drm_i810_private_t *dev_priv = dev->dev_private;
1036         drm_i810_buf_priv_t *buf_priv = buf->dev_private;
1037         drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
1038         unsigned long address = (unsigned long)buf->bus_address;
1039         unsigned long start = address - dev->agp->base;
1040         int u;
1041         RING_LOCALS;
1042
1043         i810_kernel_lost_context(dev);
1044
1045         u = cmpxchg(buf_priv->in_use, I810_BUF_CLIENT, I810_BUF_HARDWARE);
1046         if (u != I810_BUF_CLIENT)
1047                 DRM_DEBUG("MC found buffer that isn't mine!\n");
1048
1049         if (used > 4 * 1024)
1050                 used = 0;
1051
1052         sarea_priv->dirty = 0x7f;
1053
1054         DRM_DEBUG("addr 0x%lx, used 0x%x\n", address, used);
1055
1056         dev_priv->counter++;
1057         DRM_DEBUG("dispatch counter : %ld\n", dev_priv->counter);
1058         DRM_DEBUG("start : %lx\n", start);
1059         DRM_DEBUG("used : %d\n", used);
1060         DRM_DEBUG("start + used - 4 : %ld\n", start + used - 4);
1061
1062         if (buf_priv->currently_mapped == I810_BUF_MAPPED) {
1063                 if (used & 4) {
1064                         *(u32 *) ((char *) buf_priv->virtual + used) = 0;
1065                         used += 4;
1066                 }
1067
1068                 i810_unmap_buffer(buf);
1069         }
1070         BEGIN_LP_RING(4);
1071         OUT_RING(CMD_OP_BATCH_BUFFER);
1072         OUT_RING(start | BB1_PROTECTED);
1073         OUT_RING(start + used - 4);
1074         OUT_RING(0);
1075         ADVANCE_LP_RING();
1076
1077         BEGIN_LP_RING(8);
1078         OUT_RING(CMD_STORE_DWORD_IDX);
1079         OUT_RING(buf_priv->my_use_idx);
1080         OUT_RING(I810_BUF_FREE);
1081         OUT_RING(0);
1082
1083         OUT_RING(CMD_STORE_DWORD_IDX);
1084         OUT_RING(16);
1085         OUT_RING(last_render);
1086         OUT_RING(0);
1087         ADVANCE_LP_RING();
1088 }
1089
1090 static int i810_dma_mc(struct drm_device *dev, void *data,
1091                        struct drm_file *file_priv)
1092 {
1093         struct drm_device_dma *dma = dev->dma;
1094         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1095         u32 *hw_status = dev_priv->hw_status_page;
1096         drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
1097             dev_priv->sarea_priv;
1098         drm_i810_mc_t *mc = data;
1099
1100         LOCK_TEST_WITH_RETURN(dev, file_priv);
1101
1102         if (mc->idx >= dma->buf_count || mc->idx < 0)
1103                 return -EINVAL;
1104
1105         i810_dma_dispatch_mc(dev, dma->buflist[mc->idx], mc->used,
1106                              mc->last_render);
1107
1108         atomic_add(mc->used, &dev->counts[_DRM_STAT_SECONDARY]);
1109         atomic_inc(&dev->counts[_DRM_STAT_DMA]);
1110         sarea_priv->last_enqueue = dev_priv->counter - 1;
1111         sarea_priv->last_dispatch = (int)hw_status[5];
1112
1113         return 0;
1114 }
1115
1116 static int i810_rstatus(struct drm_device *dev, void *data,
1117                         struct drm_file *file_priv)
1118 {
1119         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1120
1121         return (int)(((u32 *) (dev_priv->hw_status_page))[4]);
1122 }
1123
1124 static int i810_ov0_info(struct drm_device *dev, void *data,
1125                          struct drm_file *file_priv)
1126 {
1127         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1128         drm_i810_overlay_t *ov = data;
1129
1130         ov->offset = dev_priv->overlay_offset;
1131         ov->physical = dev_priv->overlay_physical;
1132
1133         return 0;
1134 }
1135
1136 static int i810_fstatus(struct drm_device *dev, void *data,
1137                         struct drm_file *file_priv)
1138 {
1139         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1140
1141         LOCK_TEST_WITH_RETURN(dev, file_priv);
1142         return I810_READ(0x30008);
1143 }
1144
1145 static int i810_ov0_flip(struct drm_device *dev, void *data,
1146                          struct drm_file *file_priv)
1147 {
1148         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1149
1150         LOCK_TEST_WITH_RETURN(dev, file_priv);
1151
1152         /* Tell the overlay to update */
1153         I810_WRITE(0x30000, dev_priv->overlay_physical | 0x80000000);
1154
1155         return 0;
1156 }
1157
1158 /* Not sure why this isn't set all the time:
1159  */
1160 static void i810_do_init_pageflip(struct drm_device *dev)
1161 {
1162         drm_i810_private_t *dev_priv = dev->dev_private;
1163
1164         DRM_DEBUG("\n");
1165         dev_priv->page_flipping = 1;
1166         dev_priv->current_page = 0;
1167         dev_priv->sarea_priv->pf_current_page = dev_priv->current_page;
1168 }
1169
1170 static int i810_do_cleanup_pageflip(struct drm_device *dev)
1171 {
1172         drm_i810_private_t *dev_priv = dev->dev_private;
1173
1174         DRM_DEBUG("\n");
1175         if (dev_priv->current_page != 0)
1176                 i810_dma_dispatch_flip(dev);
1177
1178         dev_priv->page_flipping = 0;
1179         return 0;
1180 }
1181
1182 static int i810_flip_bufs(struct drm_device *dev, void *data,
1183                           struct drm_file *file_priv)
1184 {
1185         drm_i810_private_t *dev_priv = dev->dev_private;
1186
1187         DRM_DEBUG("\n");
1188
1189         LOCK_TEST_WITH_RETURN(dev, file_priv);
1190
1191         if (!dev_priv->page_flipping)
1192                 i810_do_init_pageflip(dev);
1193
1194         i810_dma_dispatch_flip(dev);
1195         return 0;
1196 }
1197
1198 int i810_driver_load(struct drm_device *dev, unsigned long flags)
1199 {
1200         /* i810 has 4 more counters */
1201         dev->counters += 4;
1202         dev->types[6] = _DRM_STAT_IRQ;
1203         dev->types[7] = _DRM_STAT_PRIMARY;
1204         dev->types[8] = _DRM_STAT_SECONDARY;
1205         dev->types[9] = _DRM_STAT_DMA;
1206
1207         pci_set_master(dev->pdev);
1208
1209         return 0;
1210 }
1211
1212 void i810_driver_lastclose(struct drm_device *dev)
1213 {
1214         i810_dma_cleanup(dev);
1215 }
1216
1217 void i810_driver_preclose(struct drm_device *dev, struct drm_file *file_priv)
1218 {
1219         if (dev->dev_private) {
1220                 drm_i810_private_t *dev_priv = dev->dev_private;
1221                 if (dev_priv->page_flipping)
1222                         i810_do_cleanup_pageflip(dev);
1223         }
1224
1225         if (file_priv->master && file_priv->master->lock.hw_lock) {
1226                 drm_idlelock_take(&file_priv->master->lock);
1227                 i810_driver_reclaim_buffers(dev, file_priv);
1228                 drm_idlelock_release(&file_priv->master->lock);
1229         } else {
1230                 /* master disappeared, clean up stuff anyway and hope nothing
1231                  * goes wrong */
1232                 i810_driver_reclaim_buffers(dev, file_priv);
1233         }
1234
1235 }
1236
1237 int i810_driver_dma_quiescent(struct drm_device *dev)
1238 {
1239         i810_dma_quiescent(dev);
1240         return 0;
1241 }
1242
1243 const struct drm_ioctl_desc i810_ioctls[] = {
1244         DRM_IOCTL_DEF_DRV(I810_INIT, i810_dma_init, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY|DRM_UNLOCKED),
1245         DRM_IOCTL_DEF_DRV(I810_VERTEX, i810_dma_vertex, DRM_AUTH|DRM_UNLOCKED),
1246         DRM_IOCTL_DEF_DRV(I810_CLEAR, i810_clear_bufs, DRM_AUTH|DRM_UNLOCKED),
1247         DRM_IOCTL_DEF_DRV(I810_FLUSH, i810_flush_ioctl, DRM_AUTH|DRM_UNLOCKED),
1248         DRM_IOCTL_DEF_DRV(I810_GETAGE, i810_getage, DRM_AUTH|DRM_UNLOCKED),
1249         DRM_IOCTL_DEF_DRV(I810_GETBUF, i810_getbuf, DRM_AUTH|DRM_UNLOCKED),
1250         DRM_IOCTL_DEF_DRV(I810_SWAP, i810_swap_bufs, DRM_AUTH|DRM_UNLOCKED),
1251         DRM_IOCTL_DEF_DRV(I810_COPY, i810_copybuf, DRM_AUTH|DRM_UNLOCKED),
1252         DRM_IOCTL_DEF_DRV(I810_DOCOPY, i810_docopy, DRM_AUTH|DRM_UNLOCKED),
1253         DRM_IOCTL_DEF_DRV(I810_OV0INFO, i810_ov0_info, DRM_AUTH|DRM_UNLOCKED),
1254         DRM_IOCTL_DEF_DRV(I810_FSTATUS, i810_fstatus, DRM_AUTH|DRM_UNLOCKED),
1255         DRM_IOCTL_DEF_DRV(I810_OV0FLIP, i810_ov0_flip, DRM_AUTH|DRM_UNLOCKED),
1256         DRM_IOCTL_DEF_DRV(I810_MC, i810_dma_mc, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY|DRM_UNLOCKED),
1257         DRM_IOCTL_DEF_DRV(I810_RSTATUS, i810_rstatus, DRM_AUTH|DRM_UNLOCKED),
1258         DRM_IOCTL_DEF_DRV(I810_FLIP, i810_flip_bufs, DRM_AUTH|DRM_UNLOCKED),
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 }