drivers/gpu/drm/i810/i810_dma.c

   1 /* i810_dma.c -- DMA support for the i810 -*- linux-c -*-
   2  * Created: Mon Dec 13 01:50:01 1999 by jhartmann@precisioninsight.com
   3  *
   4  * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
   5  * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
   6  * All Rights Reserved.
   7  *
   8  * Permission is hereby granted, free of charge, to any person obtaining a
   9  * copy of this software and associated documentation files (the "Software"),
  10  * to deal in the Software without restriction, including without limitation
  11  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  12  * and/or sell copies of the Software, and to permit persons to whom the
  13  * Software is furnished to do so, subject to the following conditions:
  14  *
  15  * The above copyright notice and this permission notice (including the next
  16  * paragraph) shall be included in all copies or substantial portions of the
  17  * Software.
  18  *
  19  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  20  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  21  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  22  * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
  23  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  24  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  25  * DEALINGS IN THE SOFTWARE.
  26  *
  27  * Authors: Rickard E. (Rik) Faith <faith@valinux.com>
  28  *          Jeff Hartmann <jhartmann@valinux.com>
  29  *          Keith Whitwell <keith@tungstengraphics.com>
  30  *
  31  */
  32
  33 #include "drmP.h"
  34 #include "drm.h"
  35 #include "i810_drm.h"
  36 #include "i810_drv.h"
  37 #include <linux/interrupt.h>    /* For task queue support */
  38 #include <linux/delay.h>
  39 #include <linux/slab.h>
  40 #include <linux/pagemap.h>
  41
  42 #define I810_BUF_FREE           2
  43 #define I810_BUF_CLIENT         1
  44 #define I810_BUF_HARDWARE       0
  45
  46 #define I810_BUF_UNMAPPED 0
  47 #define I810_BUF_MAPPED   1
  48
  49 static struct drm_buf *i810_freelist_get(struct drm_device * dev)
  50 {
  51         struct drm_device_dma *dma = dev->dma;
  52         int i;
  53         int used;
  54
  55         /* Linear search might not be the best solution */
  56
  57         for (i = 0; i < dma->buf_count; i++) {
  58                 struct drm_buf *buf = dma->buflist[i];
  59                 drm_i810_buf_priv_t *buf_priv = buf->dev_private;
  60                 /* In use is already a pointer */
  61                 used = cmpxchg(buf_priv->in_use, I810_BUF_FREE,
  62                                I810_BUF_CLIENT);
  63                 if (used == I810_BUF_FREE)
  64                         return buf;
  65         }
  66         return NULL;
  67 }
  68
  69 /* This should only be called if the buffer is not sent to the hardware
  70  * yet, the hardware updates in use for us once its on the ring buffer.
  71  */
  72
  73 static int i810_freelist_put(struct drm_device *dev, struct drm_buf *buf)
  74 {
  75         drm_i810_buf_priv_t *buf_priv = buf->dev_private;
  76         int used;
  77
  78         /* In use is already a pointer */
  79         used = cmpxchg(buf_priv->in_use, I810_BUF_CLIENT, I810_BUF_FREE);
  80         if (used != I810_BUF_CLIENT) {
  81                 DRM_ERROR("Freeing buffer thats not in use : %d\n", buf->idx);
  82                 return -EINVAL;
  83         }
  84
  85         return 0;
  86 }
  87
  88 static int i810_mmap_buffers(struct file *filp, struct vm_area_struct *vma)
  89 {
  90         struct drm_file *priv = filp->private_data;
  91         struct drm_device *dev;
  92         drm_i810_private_t *dev_priv;
  93         struct drm_buf *buf;
  94         drm_i810_buf_priv_t *buf_priv;
  95
  96         dev = priv->minor->dev;
  97         dev_priv = dev->dev_private;
  98         buf = dev_priv->mmap_buffer;
  99         buf_priv = buf->dev_private;
 100
 101         vma->vm_flags |= (VM_IO | VM_DONTCOPY);
 102         vma->vm_file = filp;
 103
 104         buf_priv->currently_mapped = I810_BUF_MAPPED;
 105
 106         if (io_remap_pfn_range(vma, vma->vm_start,
 107                                vma->vm_pgoff,
 108                                vma->vm_end - vma->vm_start, vma->vm_page_prot))
 109                 return -EAGAIN;
 110         return 0;
 111 }
 112
 113 static const struct file_operations i810_buffer_fops = {
 114         .open = drm_open,
 115         .release = drm_release,
 116         .unlocked_ioctl = drm_ioctl,
 117         .mmap = i810_mmap_buffers,
 118         .fasync = drm_fasync,
 119         .llseek = noop_llseek,
 120 };
 121
 122 static int i810_map_buffer(struct drm_buf *buf, struct drm_file *file_priv)
 123 {
 124         struct drm_device *dev = file_priv->minor->dev;
 125         drm_i810_buf_priv_t *buf_priv = buf->dev_private;
 126         drm_i810_private_t *dev_priv = dev->dev_private;
 127         const struct file_operations *old_fops;
 128         int retcode = 0;
 129
 130         if (buf_priv->currently_mapped == I810_BUF_MAPPED)
 131                 return -EINVAL;
 132
 133         down_write(&current->mm->mmap_sem);
 134         old_fops = file_priv->filp->f_op;
 135         file_priv->filp->f_op = &i810_buffer_fops;
 136         dev_priv->mmap_buffer = buf;
 137         buf_priv->virtual = (void *)do_mmap(file_priv->filp, 0, buf->total,
 138                                             PROT_READ | PROT_WRITE,
 139                                             MAP_SHARED, buf->bus_address);
 140         dev_priv->mmap_buffer = NULL;
 141         file_priv->filp->f_op = old_fops;
 142         if (IS_ERR(buf_priv->virtual)) {
 143                 /* Real error */
 144                 DRM_ERROR("mmap error\n");
 145                 retcode = PTR_ERR(buf_priv->virtual);
 146                 buf_priv->virtual = NULL;
 147         }
 148         up_write(&current->mm->mmap_sem);
 149
 150         return retcode;
 151 }
 152
 153 static int i810_unmap_buffer(struct drm_buf *buf)
 154 {
 155         drm_i810_buf_priv_t *buf_priv = buf->dev_private;
 156         int retcode = 0;
 157
 158         if (buf_priv->currently_mapped != I810_BUF_MAPPED)
 159                 return -EINVAL;
 160
 161         down_write(&current->mm->mmap_sem);
 162         retcode = do_munmap(current->mm,
 163                             (unsigned long)buf_priv->virtual,
 164                             (size_t) buf->total);
 165         up_write(&current->mm->mmap_sem);
 166
 167         buf_priv->currently_mapped = I810_BUF_UNMAPPED;
 168         buf_priv->virtual = NULL;
 169
 170         return retcode;
 171 }
 172
 173 static int i810_dma_get_buffer(struct drm_device *dev, drm_i810_dma_t *d,
 174                                struct drm_file *file_priv)
 175 {
 176         struct drm_buf *buf;
 177         drm_i810_buf_priv_t *buf_priv;
 178         int retcode = 0;
 179
 180         buf = i810_freelist_get(dev);
 181         if (!buf) {
 182                 retcode = -ENOMEM;
 183                 DRM_DEBUG("retcode=%d\n", retcode);
 184                 return retcode;
 185         }
 186
 187         retcode = i810_map_buffer(buf, file_priv);
 188         if (retcode) {
 189                 i810_freelist_put(dev, buf);
 190                 DRM_ERROR("mapbuf failed, retcode %d\n", retcode);
 191                 return retcode;
 192         }
 193         buf->file_priv = file_priv;
 194         buf_priv = buf->dev_private;
 195         d->granted = 1;
 196         d->request_idx = buf->idx;
 197         d->request_size = buf->total;
 198         d->virtual = buf_priv->virtual;
 199
 200         return retcode;
 201 }
 202
 203 static int i810_dma_cleanup(struct drm_device *dev)
 204 {
 205         struct drm_device_dma *dma = dev->dma;
 206
 207         /* Make sure interrupts are disabled here because the uninstall ioctl
 208          * may not have been called from userspace and after dev_private
 209          * is freed, it's too late.
 210          */
 211         if (drm_core_check_feature(dev, DRIVER_HAVE_IRQ) && dev->irq_enabled)
 212                 drm_irq_uninstall(dev);
 213
 214         if (dev->dev_private) {
 215                 int i;
 216                 drm_i810_private_t *dev_priv =
 217                     (drm_i810_private_t *) dev->dev_private;
 218
 219                 if (dev_priv->ring.virtual_start)
 220                         drm_core_ioremapfree(&dev_priv->ring.map, dev);
 221                 if (dev_priv->hw_status_page) {
 222                         pci_free_consistent(dev->pdev, PAGE_SIZE,
 223                                             dev_priv->hw_status_page,
 224                                             dev_priv->dma_status_page);
 225                 }
 226                 kfree(dev->dev_private);
 227                 dev->dev_private = NULL;
 228
 229                 for (i = 0; i < dma->buf_count; i++) {
 230                         struct drm_buf *buf = dma->buflist[i];
 231                         drm_i810_buf_priv_t *buf_priv = buf->dev_private;
 232
 233                         if (buf_priv->kernel_virtual && buf->total)
 234                                 drm_core_ioremapfree(&buf_priv->map, dev);
 235                 }
 236         }
 237         return 0;
 238 }
 239
 240 static int i810_wait_ring(struct drm_device *dev, int n)
 241 {
 242         drm_i810_private_t *dev_priv = dev->dev_private;
 243         drm_i810_ring_buffer_t *ring = &(dev_priv->ring);
 244         int iters = 0;
 245         unsigned long end;
 246         unsigned int last_head = I810_READ(LP_RING + RING_HEAD) & HEAD_ADDR;
 247
 248         end = jiffies + (HZ * 3);
 249         while (ring->space < n) {
 250                 ring->head = I810_READ(LP_RING + RING_HEAD) & HEAD_ADDR;
 251                 ring->space = ring->head - (ring->tail + 8);
 252                 if (ring->space < 0)
 253                         ring->space += ring->Size;
 254
 255                 if (ring->head != last_head) {
 256                         end = jiffies + (HZ * 3);
 257                         last_head = ring->head;
 258                 }
 259
 260                 iters++;
 261                 if (time_before(end, jiffies)) {
 262                         DRM_ERROR("space: %d wanted %d\n", ring->space, n);
 263                         DRM_ERROR("lockup\n");
 264                         goto out_wait_ring;
 265                 }
 266                 udelay(1);
 267         }
 268
 269 out_wait_ring:
 270         return iters;
 271 }
 272
 273 static void i810_kernel_lost_context(struct drm_device *dev)
 274 {
 275         drm_i810_private_t *dev_priv = dev->dev_private;
 276         drm_i810_ring_buffer_t *ring = &(dev_priv->ring);
 277
 278         ring->head = I810_READ(LP_RING + RING_HEAD) & HEAD_ADDR;
 279         ring->tail = I810_READ(LP_RING + RING_TAIL);
 280         ring->space = ring->head - (ring->tail + 8);
 281         if (ring->space < 0)
 282                 ring->space += ring->Size;
 283 }
 284
 285 static int i810_freelist_init(struct drm_device *dev, drm_i810_private_t *dev_priv)
 286 {
 287         struct drm_device_dma *dma = dev->dma;
 288         int my_idx = 24;
 289         u32 *hw_status = (u32 *) (dev_priv->hw_status_page + my_idx);
 290         int i;
 291
 292         if (dma->buf_count > 1019) {
 293                 /* Not enough space in the status page for the freelist */
 294                 return -EINVAL;
 295         }
 296
 297         for (i = 0; i < dma->buf_count; i++) {
 298                 struct drm_buf *buf = dma->buflist[i];
 299                 drm_i810_buf_priv_t *buf_priv = buf->dev_private;
 300
 301                 buf_priv->in_use = hw_status++;
 302                 buf_priv->my_use_idx = my_idx;
 303                 my_idx += 4;
 304
 305                 *buf_priv->in_use = I810_BUF_FREE;
 306
 307                 buf_priv->map.offset = buf->bus_address;
 308                 buf_priv->map.size = buf->total;
 309                 buf_priv->map.type = _DRM_AGP;
 310                 buf_priv->map.flags = 0;
 311                 buf_priv->map.mtrr = 0;
 312
 313                 drm_core_ioremap(&buf_priv->map, dev);
 314                 buf_priv->kernel_virtual = buf_priv->map.handle;
 315
 316         }
 317         return 0;
 318 }
 319
 320 static int i810_dma_initialize(struct drm_device *dev,
 321                                drm_i810_private_t *dev_priv,
 322                                drm_i810_init_t *init)
 323 {
 324         struct drm_map_list *r_list;
 325         memset(dev_priv, 0, sizeof(drm_i810_private_t));
 326
 327         list_for_each_entry(r_list, &dev->maplist, head) {
 328                 if (r_list->map &&
 329                     r_list->map->type == _DRM_SHM &&
 330                     r_list->map->flags & _DRM_CONTAINS_LOCK) {
 331                         dev_priv->sarea_map = r_list->map;
 332                         break;
 333                 }
 334         }
 335         if (!dev_priv->sarea_map) {
 336                 dev->dev_private = (void *)dev_priv;
 337                 i810_dma_cleanup(dev);
 338                 DRM_ERROR("can not find sarea!\n");
 339                 return -EINVAL;
 340         }
 341         dev_priv->mmio_map = drm_core_findmap(dev, init->mmio_offset);
 342         if (!dev_priv->mmio_map) {
 343                 dev->dev_private = (void *)dev_priv;
 344                 i810_dma_cleanup(dev);
 345                 DRM_ERROR("can not find mmio map!\n");
 346                 return -EINVAL;
 347         }
 348         dev->agp_buffer_token = init->buffers_offset;
 349         dev->agp_buffer_map = drm_core_findmap(dev, init->buffers_offset);
 350         if (!dev->agp_buffer_map) {
 351                 dev->dev_private = (void *)dev_priv;
 352                 i810_dma_cleanup(dev);
 353                 DRM_ERROR("can not find dma buffer map!\n");
 354                 return -EINVAL;
 355         }
 356
 357         dev_priv->sarea_priv = (drm_i810_sarea_t *)
 358             ((u8 *) dev_priv->sarea_map->handle + init->sarea_priv_offset);
 359
 360         dev_priv->ring.Start = init->ring_start;
 361         dev_priv->ring.End = init->ring_end;
 362         dev_priv->ring.Size = init->ring_size;
 363
 364         dev_priv->ring.map.offset = dev->agp->base + init->ring_start;
 365         dev_priv->ring.map.size = init->ring_size;
 366         dev_priv->ring.map.type = _DRM_AGP;
 367         dev_priv->ring.map.flags = 0;
 368         dev_priv->ring.map.mtrr = 0;
 369
 370         drm_core_ioremap(&dev_priv->ring.map, dev);
 371
 372         if (dev_priv->ring.map.handle == NULL) {
 373                 dev->dev_private = (void *)dev_priv;
 374                 i810_dma_cleanup(dev);
 375                 DRM_ERROR("can not ioremap virtual address for"
 376                           " ring buffer\n");
 377                 return -ENOMEM;
 378         }
 379
 380         dev_priv->ring.virtual_start = dev_priv->ring.map.handle;
 381
 382         dev_priv->ring.tail_mask = dev_priv->ring.Size - 1;
 383
 384         dev_priv->w = init->w;
 385         dev_priv->h = init->h;
 386         dev_priv->pitch = init->pitch;
 387         dev_priv->back_offset = init->back_offset;
 388         dev_priv->depth_offset = init->depth_offset;
 389         dev_priv->front_offset = init->front_offset;
 390
 391         dev_priv->overlay_offset = init->overlay_offset;
 392         dev_priv->overlay_physical = init->overlay_physical;
 393
 394         dev_priv->front_di1 = init->front_offset | init->pitch_bits;
 395         dev_priv->back_di1 = init->back_offset | init->pitch_bits;
 396         dev_priv->zi1 = init->depth_offset | init->pitch_bits;
 397
 398         /* Program Hardware Status Page */
 399         dev_priv->hw_status_page =
 400             pci_alloc_consistent(dev->pdev, PAGE_SIZE,
 401                                  &dev_priv->dma_status_page);
 402         if (!dev_priv->hw_status_page) {
 403                 dev->dev_private = (void *)dev_priv;
 404                 i810_dma_cleanup(dev);
 405                 DRM_ERROR("Can not allocate hardware status page\n");
 406                 return -ENOMEM;
 407         }
 408         memset(dev_priv->hw_status_page, 0, PAGE_SIZE);
 409         DRM_DEBUG("hw status page @ %p\n", dev_priv->hw_status_page);
 410
 411         I810_WRITE(0x02080, dev_priv->dma_status_page);
 412         DRM_DEBUG("Enabled hardware status page\n");
 413
 414         /* Now we need to init our freelist */
 415         if (i810_freelist_init(dev, dev_priv) != 0) {
 416                 dev->dev_private = (void *)dev_priv;
 417                 i810_dma_cleanup(dev);
 418                 DRM_ERROR("Not enough space in the status page for"
 419                           " the freelist\n");
 420                 return -ENOMEM;
 421         }
 422         dev->dev_private = (void *)dev_priv;
 423
 424         return 0;
 425 }
 426
 427 static int i810_dma_init(struct drm_device *dev, void *data,
 428                          struct drm_file *file_priv)
 429 {
 430         drm_i810_private_t *dev_priv;
 431         drm_i810_init_t *init = data;
 432         int retcode = 0;
 433
 434         switch (init->func) {
 435         case I810_INIT_DMA_1_4:
 436                 DRM_INFO("Using v1.4 init.\n");
 437                 dev_priv = kmalloc(sizeof(drm_i810_private_t), GFP_KERNEL);
 438                 if (dev_priv == NULL)
 439                         return -ENOMEM;
 440                 retcode = i810_dma_initialize(dev, dev_priv, init);
 441                 break;
 442
 443         case I810_CLEANUP_DMA:
 444                 DRM_INFO("DMA Cleanup\n");
 445                 retcode = i810_dma_cleanup(dev);
 446                 break;
 447         default:
 448                 return -EINVAL;
 449         }
 450
 451         return retcode;
 452 }
 453
 454 /* Most efficient way to verify state for the i810 is as it is
 455  * emitted.  Non-conformant state is silently dropped.
 456  *
 457  * Use 'volatile' & local var tmp to force the emitted values to be
 458  * identical to the verified ones.
 459  */
 460 static void i810EmitContextVerified(struct drm_device *dev,
 461                                     volatile unsigned int *code)
 462 {
 463         drm_i810_private_t *dev_priv = dev->dev_private;
 464         int i, j = 0;
 465         unsigned int tmp;
 466         RING_LOCALS;
 467
 468         BEGIN_LP_RING(I810_CTX_SETUP_SIZE);
 469
 470         OUT_RING(GFX_OP_COLOR_FACTOR);
 471         OUT_RING(code[I810_CTXREG_CF1]);
 472
 473         OUT_RING(GFX_OP_STIPPLE);
 474         OUT_RING(code[I810_CTXREG_ST1]);
 475
 476         for (i = 4; i < I810_CTX_SETUP_SIZE; i++) {
 477                 tmp = code[i];
 478
 479                 if ((tmp & (7 << 29)) == (3 << 29) &&
 480                     (tmp & (0x1f << 24)) < (0x1d << 24)) {
 481                         OUT_RING(tmp);
 482                         j++;
 483                 } else
 484                         printk("constext state dropped!!!\n");
 485         }
 486
 487         if (j & 1)
 488                 OUT_RING(0);
 489
 490         ADVANCE_LP_RING();
 491 }
 492
 493 static void i810EmitTexVerified(struct drm_device *dev, volatile unsigned int *code)
 494 {
 495         drm_i810_private_t *dev_priv = dev->dev_private;
 496         int i, j = 0;
 497         unsigned int tmp;
 498         RING_LOCALS;
 499
 500         BEGIN_LP_RING(I810_TEX_SETUP_SIZE);
 501
 502         OUT_RING(GFX_OP_MAP_INFO);
 503         OUT_RING(code[I810_TEXREG_MI1]);
 504         OUT_RING(code[I810_TEXREG_MI2]);
 505         OUT_RING(code[I810_TEXREG_MI3]);
 506
 507         for (i = 4; i < I810_TEX_SETUP_SIZE; i++) {
 508                 tmp = code[i];
 509
 510                 if ((tmp & (7 << 29)) == (3 << 29) &&
 511                     (tmp & (0x1f << 24)) < (0x1d << 24)) {
 512                         OUT_RING(tmp);
 513                         j++;
 514                 } else
 515                         printk("texture state dropped!!!\n");
 516         }
 517
 518         if (j & 1)
 519                 OUT_RING(0);
 520
 521         ADVANCE_LP_RING();
 522 }
 523
 524 /* Need to do some additional checking when setting the dest buffer.
 525  */
 526 static void i810EmitDestVerified(struct drm_device *dev,
 527                                  volatile unsigned int *code)
 528 {
 529         drm_i810_private_t *dev_priv = dev->dev_private;
 530         unsigned int tmp;
 531         RING_LOCALS;
 532
 533         BEGIN_LP_RING(I810_DEST_SETUP_SIZE + 2);
 534
 535         tmp = code[I810_DESTREG_DI1];
 536         if (tmp == dev_priv->front_di1 || tmp == dev_priv->back_di1) {
 537                 OUT_RING(CMD_OP_DESTBUFFER_INFO);
 538                 OUT_RING(tmp);
 539         } else
 540                 DRM_DEBUG("bad di1 %x (allow %x or %x)\n",
 541                           tmp, dev_priv->front_di1, dev_priv->back_di1);
 542
 543         /* invarient:
 544          */
 545         OUT_RING(CMD_OP_Z_BUFFER_INFO);
 546         OUT_RING(dev_priv->zi1);
 547
 548         OUT_RING(GFX_OP_DESTBUFFER_VARS);
 549         OUT_RING(code[I810_DESTREG_DV1]);
 550
 551         OUT_RING(GFX_OP_DRAWRECT_INFO);
 552         OUT_RING(code[I810_DESTREG_DR1]);
 553         OUT_RING(code[I810_DESTREG_DR2]);
 554         OUT_RING(code[I810_DESTREG_DR3]);
 555         OUT_RING(code[I810_DESTREG_DR4]);
 556         OUT_RING(0);
 557
 558         ADVANCE_LP_RING();
 559 }
 560
 561 static void i810EmitState(struct drm_device *dev)
 562 {
 563         drm_i810_private_t *dev_priv = dev->dev_private;
 564         drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
 565         unsigned int dirty = sarea_priv->dirty;
 566
 567         DRM_DEBUG("%x\n", dirty);
 568
 569         if (dirty & I810_UPLOAD_BUFFERS) {
 570                 i810EmitDestVerified(dev, sarea_priv->BufferState);
 571                 sarea_priv->dirty &= ~I810_UPLOAD_BUFFERS;
 572         }
 573
 574         if (dirty & I810_UPLOAD_CTX) {
 575                 i810EmitContextVerified(dev, sarea_priv->ContextState);
 576                 sarea_priv->dirty &= ~I810_UPLOAD_CTX;
 577         }
 578
 579         if (dirty & I810_UPLOAD_TEX0) {
 580                 i810EmitTexVerified(dev, sarea_priv->TexState[0]);
 581                 sarea_priv->dirty &= ~I810_UPLOAD_TEX0;
 582         }
 583
 584         if (dirty & I810_UPLOAD_TEX1) {
 585                 i810EmitTexVerified(dev, sarea_priv->TexState[1]);
 586                 sarea_priv->dirty &= ~I810_UPLOAD_TEX1;
 587         }
 588 }
 589
 590 /* need to verify
 591  */
 592 static void i810_dma_dispatch_clear(struct drm_device *dev, int flags,
 593                                     unsigned int clear_color,
 594                                     unsigned int clear_zval)
 595 {
 596         drm_i810_private_t *dev_priv = dev->dev_private;
 597         drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
 598         int nbox = sarea_priv->nbox;
 599         struct drm_clip_rect *pbox = sarea_priv->boxes;
 600         int pitch = dev_priv->pitch;
 601         int cpp = 2;
 602         int i;
 603         RING_LOCALS;
 604
 605         if (dev_priv->current_page == 1) {
 606                 unsigned int tmp = flags;
 607
 608                 flags &= ~(I810_FRONT | I810_BACK);
 609                 if (tmp & I810_FRONT)
 610                         flags |= I810_BACK;
 611                 if (tmp & I810_BACK)
 612                         flags |= I810_FRONT;
 613         }
 614
 615         i810_kernel_lost_context(dev);
 616
 617         if (nbox > I810_NR_SAREA_CLIPRECTS)
 618                 nbox = I810_NR_SAREA_CLIPRECTS;
 619
 620         for (i = 0; i < nbox; i++, pbox++) {
 621                 unsigned int x = pbox->x1;
 622                 unsigned int y = pbox->y1;
 623                 unsigned int width = (pbox->x2 - x) * cpp;
 624                 unsigned int height = pbox->y2 - y;
 625                 unsigned int start = y * pitch + x * cpp;
 626
 627                 if (pbox->x1 > pbox->x2 ||
 628                     pbox->y1 > pbox->y2 ||
 629                     pbox->x2 > dev_priv->w || pbox->y2 > dev_priv->h)
 630                         continue;
 631
 632                 if (flags & I810_FRONT) {
 633                         BEGIN_LP_RING(6);
 634                         OUT_RING(BR00_BITBLT_CLIENT | BR00_OP_COLOR_BLT | 0x3);
 635                         OUT_RING(BR13_SOLID_PATTERN | (0xF0 << 16) | pitch);
 636                         OUT_RING((height << 16) | width);
 637                         OUT_RING(start);
 638                         OUT_RING(clear_color);
 639                         OUT_RING(0);
 640                         ADVANCE_LP_RING();
 641                 }
 642
 643                 if (flags & I810_BACK) {
 644                         BEGIN_LP_RING(6);
 645                         OUT_RING(BR00_BITBLT_CLIENT | BR00_OP_COLOR_BLT | 0x3);
 646                         OUT_RING(BR13_SOLID_PATTERN | (0xF0 << 16) | pitch);
 647                         OUT_RING((height << 16) | width);
 648                         OUT_RING(dev_priv->back_offset + start);
 649                         OUT_RING(clear_color);
 650                         OUT_RING(0);
 651                         ADVANCE_LP_RING();
 652                 }
 653
 654                 if (flags & I810_DEPTH) {
 655                         BEGIN_LP_RING(6);
 656                         OUT_RING(BR00_BITBLT_CLIENT | BR00_OP_COLOR_BLT | 0x3);
 657                         OUT_RING(BR13_SOLID_PATTERN | (0xF0 << 16) | pitch);
 658                         OUT_RING((height << 16) | width);
 659                         OUT_RING(dev_priv->depth_offset + start);
 660                         OUT_RING(clear_zval);
 661                         OUT_RING(0);
 662                         ADVANCE_LP_RING();
 663                 }
 664         }
 665 }
 666
 667 static void i810_dma_dispatch_swap(struct drm_device *dev)
 668 {
 669         drm_i810_private_t *dev_priv = dev->dev_private;
 670         drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
 671         int nbox = sarea_priv->nbox;
 672         struct drm_clip_rect *pbox = sarea_priv->boxes;
 673         int pitch = dev_priv->pitch;
 674         int cpp = 2;
 675         int i;
 676         RING_LOCALS;
 677
 678         DRM_DEBUG("swapbuffers\n");
 679
 680         i810_kernel_lost_context(dev);
 681
 682         if (nbox > I810_NR_SAREA_CLIPRECTS)
 683                 nbox = I810_NR_SAREA_CLIPRECTS;
 684
 685         for (i = 0; i < nbox; i++, pbox++) {
 686                 unsigned int w = pbox->x2 - pbox->x1;
 687                 unsigned int h = pbox->y2 - pbox->y1;
 688                 unsigned int dst = pbox->x1 * cpp + pbox->y1 * pitch;
 689                 unsigned int start = dst;
 690
 691                 if (pbox->x1 > pbox->x2 ||
 692                     pbox->y1 > pbox->y2 ||
 693                     pbox->x2 > dev_priv->w || pbox->y2 > dev_priv->h)
 694                         continue;
 695
 696                 BEGIN_LP_RING(6);
 697                 OUT_RING(BR00_BITBLT_CLIENT | BR00_OP_SRC_COPY_BLT | 0x4);
 698                 OUT_RING(pitch | (0xCC << 16));
 699                 OUT_RING((h << 16) | (w * cpp));
 700                 if (dev_priv->current_page == 0)
 701                         OUT_RING(dev_priv->front_offset + start);
 702                 else
 703                         OUT_RING(dev_priv->back_offset + start);
 704                 OUT_RING(pitch);
 705                 if (dev_priv->current_page == 0)
 706                         OUT_RING(dev_priv->back_offset + start);
 707                 else
 708                         OUT_RING(dev_priv->front_offset + start);
 709                 ADVANCE_LP_RING();
 710         }
 711 }
 712
 713 static void i810_dma_dispatch_vertex(struct drm_device *dev,
 714                                      struct drm_buf *buf, int discard, int used)
 715 {
 716         drm_i810_private_t *dev_priv = dev->dev_private;
 717         drm_i810_buf_priv_t *buf_priv = buf->dev_private;
 718         drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
 719         struct drm_clip_rect *box = sarea_priv->boxes;
 720         int nbox = sarea_priv->nbox;
 721         unsigned long address = (unsigned long)buf->bus_address;
 722         unsigned long start = address - dev->agp->base;
 723         int i = 0;
 724         RING_LOCALS;
 725
 726         i810_kernel_lost_context(dev);
 727
 728         if (nbox > I810_NR_SAREA_CLIPRECTS)
 729                 nbox = I810_NR_SAREA_CLIPRECTS;
 730
 731         if (used > 4 * 1024)
 732                 used = 0;
 733
 734         if (sarea_priv->dirty)
 735                 i810EmitState(dev);
 736
 737         if (buf_priv->currently_mapped == I810_BUF_MAPPED) {
 738                 unsigned int prim = (sarea_priv->vertex_prim & PR_MASK);
 739
 740                 *(u32 *) buf_priv->kernel_virtual =
 741                     ((GFX_OP_PRIMITIVE | prim | ((used / 4) - 2)));
 742
 743                 if (used & 4) {
 744                         *(u32 *) ((char *) buf_priv->kernel_virtual + used) = 0;
 745                         used += 4;
 746                 }
 747
 748                 i810_unmap_buffer(buf);
 749         }
 750
 751         if (used) {
 752                 do {
 753                         if (i < nbox) {
 754                                 BEGIN_LP_RING(4);
 755                                 OUT_RING(GFX_OP_SCISSOR | SC_UPDATE_SCISSOR |
 756                                          SC_ENABLE);
 757                                 OUT_RING(GFX_OP_SCISSOR_INFO);
 758                                 OUT_RING(box[i].x1 | (box[i].y1 << 16));
 759                                 OUT_RING((box[i].x2 -
 760                                           1) | ((box[i].y2 - 1) << 16));
 761                                 ADVANCE_LP_RING();
 762                         }
 763
 764                         BEGIN_LP_RING(4);
 765                         OUT_RING(CMD_OP_BATCH_BUFFER);
 766                         OUT_RING(start | BB1_PROTECTED);
 767                         OUT_RING(start + used - 4);
 768                         OUT_RING(0);
 769                         ADVANCE_LP_RING();
 770
 771                 } while (++i < nbox);
 772         }
 773
 774         if (discard) {
 775                 dev_priv->counter++;
 776
 777                 (void)cmpxchg(buf_priv->in_use, I810_BUF_CLIENT,
 778                               I810_BUF_HARDWARE);
 779
 780                 BEGIN_LP_RING(8);
 781                 OUT_RING(CMD_STORE_DWORD_IDX);
 782                 OUT_RING(20);
 783                 OUT_RING(dev_priv->counter);
 784                 OUT_RING(CMD_STORE_DWORD_IDX);
 785                 OUT_RING(buf_priv->my_use_idx);
 786                 OUT_RING(I810_BUF_FREE);
 787                 OUT_RING(CMD_REPORT_HEAD);
 788                 OUT_RING(0);
 789                 ADVANCE_LP_RING();
 790         }
 791 }
 792
 793 static void i810_dma_dispatch_flip(struct drm_device *dev)
 794 {
 795         drm_i810_private_t *dev_priv = dev->dev_private;
 796         int pitch = dev_priv->pitch;
 797         RING_LOCALS;
 798
 799         DRM_DEBUG("page=%d pfCurrentPage=%d\n",
 800                   dev_priv->current_page,
 801                   dev_priv->sarea_priv->pf_current_page);
 802
 803         i810_kernel_lost_context(dev);
 804
 805         BEGIN_LP_RING(2);
 806         OUT_RING(INST_PARSER_CLIENT | INST_OP_FLUSH | INST_FLUSH_MAP_CACHE);
 807         OUT_RING(0);
 808         ADVANCE_LP_RING();
 809
 810         BEGIN_LP_RING(I810_DEST_SETUP_SIZE + 2);
 811         /* On i815 at least ASYNC is buggy */
 812         /* pitch<<5 is from 11.2.8 p158,
 813            its the pitch / 8 then left shifted 8,
 814            so (pitch >> 3) << 8 */
 815         OUT_RING(CMD_OP_FRONTBUFFER_INFO | (pitch << 5) /*| ASYNC_FLIP */ );
 816         if (dev_priv->current_page == 0) {
 817                 OUT_RING(dev_priv->back_offset);
 818                 dev_priv->current_page = 1;
 819         } else {
 820                 OUT_RING(dev_priv->front_offset);
 821                 dev_priv->current_page = 0;
 822         }
 823         OUT_RING(0);
 824         ADVANCE_LP_RING();
 825
 826         BEGIN_LP_RING(2);
 827         OUT_RING(CMD_OP_WAIT_FOR_EVENT | WAIT_FOR_PLANE_A_FLIP);
 828         OUT_RING(0);
 829         ADVANCE_LP_RING();
 830
 831         /* Increment the frame counter.  The client-side 3D driver must
 832          * throttle the framerate by waiting for this value before
 833          * performing the swapbuffer ioctl.
 834          */
 835         dev_priv->sarea_priv->pf_current_page = dev_priv->current_page;
 836
 837 }
 838
 839 static void i810_dma_quiescent(struct drm_device *dev)
 840 {
 841         drm_i810_private_t *dev_priv = dev->dev_private;
 842         RING_LOCALS;
 843
 844         i810_kernel_lost_context(dev);
 845
 846         BEGIN_LP_RING(4);
 847         OUT_RING(INST_PARSER_CLIENT | INST_OP_FLUSH | INST_FLUSH_MAP_CACHE);
 848         OUT_RING(CMD_REPORT_HEAD);
 849         OUT_RING(0);
 850         OUT_RING(0);
 851         ADVANCE_LP_RING();
 852
 853         i810_wait_ring(dev, dev_priv->ring.Size - 8);
 854 }
 855
 856 static int i810_flush_queue(struct drm_device *dev)
 857 {
 858         drm_i810_private_t *dev_priv = dev->dev_private;
 859         struct drm_device_dma *dma = dev->dma;
 860         int i, ret = 0;
 861         RING_LOCALS;
 862
 863         i810_kernel_lost_context(dev);
 864
 865         BEGIN_LP_RING(2);
 866         OUT_RING(CMD_REPORT_HEAD);
 867         OUT_RING(0);
 868         ADVANCE_LP_RING();
 869
 870         i810_wait_ring(dev, dev_priv->ring.Size - 8);
 871
 872         for (i = 0; i < dma->buf_count; i++) {
 873                 struct drm_buf *buf = dma->buflist[i];
 874                 drm_i810_buf_priv_t *buf_priv = buf->dev_private;
 875
 876                 int used = cmpxchg(buf_priv->in_use, I810_BUF_HARDWARE,
 877                                    I810_BUF_FREE);
 878
 879                 if (used == I810_BUF_HARDWARE)
 880                         DRM_DEBUG("reclaimed from HARDWARE\n");
 881                 if (used == I810_BUF_CLIENT)
 882                         DRM_DEBUG("still on client\n");
 883         }
 884
 885         return ret;
 886 }
 887
 888 /* Must be called with the lock held */
 889 static void i810_reclaim_buffers(struct drm_device *dev,
 890                                  struct drm_file *file_priv)
 891 {
 892         struct drm_device_dma *dma = dev->dma;
 893         int i;
 894
 895         if (!dma)
 896                 return;
 897         if (!dev->dev_private)
 898                 return;
 899         if (!dma->buflist)
 900                 return;
 901
 902         i810_flush_queue(dev);
 903
 904         for (i = 0; i < dma->buf_count; i++) {
 905                 struct drm_buf *buf = dma->buflist[i];
 906                 drm_i810_buf_priv_t *buf_priv = buf->dev_private;
 907
 908                 if (buf->file_priv == file_priv && buf_priv) {
 909                         int used = cmpxchg(buf_priv->in_use, I810_BUF_CLIENT,
 910                                            I810_BUF_FREE);
 911
 912                         if (used == I810_BUF_CLIENT)
 913                                 DRM_DEBUG("reclaimed from client\n");
 914                         if (buf_priv->currently_mapped == I810_BUF_MAPPED)
 915                                 buf_priv->currently_mapped = I810_BUF_UNMAPPED;
 916                 }
 917         }
 918 }
 919
 920 static int i810_flush_ioctl(struct drm_device *dev, void *data,
 921                             struct drm_file *file_priv)
 922 {
 923         LOCK_TEST_WITH_RETURN(dev, file_priv);
 924
 925         i810_flush_queue(dev);
 926         return 0;
 927 }
 928
 929 static int i810_dma_vertex(struct drm_device *dev, void *data,
 930                            struct drm_file *file_priv)
 931 {
 932         struct drm_device_dma *dma = dev->dma;
 933         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
 934         u32 *hw_status = dev_priv->hw_status_page;
 935         drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
 936             dev_priv->sarea_priv;
 937         drm_i810_vertex_t *vertex = data;
 938
 939         LOCK_TEST_WITH_RETURN(dev, file_priv);
 940
 941         DRM_DEBUG("idx %d used %d discard %d\n",
 942                   vertex->idx, vertex->used, vertex->discard);
 943
 944         if (vertex->idx < 0 || vertex->idx > dma->buf_count)
 945                 return -EINVAL;
 946
 947         i810_dma_dispatch_vertex(dev,
 948                                  dma->buflist[vertex->idx],
 949                                  vertex->discard, vertex->used);
 950
 951         atomic_add(vertex->used, &dev->counts[_DRM_STAT_SECONDARY]);
 952         atomic_inc(&dev->counts[_DRM_STAT_DMA]);
 953         sarea_priv->last_enqueue = dev_priv->counter - 1;
 954         sarea_priv->last_dispatch = (int)hw_status[5];
 955
 956         return 0;
 957 }
 958
 959 static int i810_clear_bufs(struct drm_device *dev, void *data,
 960                            struct drm_file *file_priv)
 961 {
 962         drm_i810_clear_t *clear = data;
 963
 964         LOCK_TEST_WITH_RETURN(dev, file_priv);
 965
 966         /* GH: Someone's doing nasty things... */
 967         if (!dev->dev_private)
 968                 return -EINVAL;
 969
 970         i810_dma_dispatch_clear(dev, clear->flags,
 971                                 clear->clear_color, clear->clear_depth);
 972         return 0;
 973 }
 974
 975 static int i810_swap_bufs(struct drm_device *dev, void *data,
 976                           struct drm_file *file_priv)
 977 {
 978         DRM_DEBUG("\n");
 979
 980         LOCK_TEST_WITH_RETURN(dev, file_priv);
 981
 982         i810_dma_dispatch_swap(dev);
 983         return 0;
 984 }
 985
 986 static int i810_getage(struct drm_device *dev, void *data,
 987                        struct drm_file *file_priv)
 988 {
 989         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
 990         u32 *hw_status = dev_priv->hw_status_page;
 991         drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
 992             dev_priv->sarea_priv;
 993
 994         sarea_priv->last_dispatch = (int)hw_status[5];
 995         return 0;
 996 }
 997
 998 static int i810_getbuf(struct drm_device *dev, void *data,
 999                        struct drm_file *file_priv)
1000 {
1001         int retcode = 0;
1002         drm_i810_dma_t *d = data;
1003         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1004         u32 *hw_status = dev_priv->hw_status_page;
1005         drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
1006             dev_priv->sarea_priv;
1007
1008         LOCK_TEST_WITH_RETURN(dev, file_priv);
1009
1010         d->granted = 0;
1011
1012         retcode = i810_dma_get_buffer(dev, d, file_priv);
1013
1014         DRM_DEBUG("i810_dma: %d returning %d, granted = %d\n",
1015                   task_pid_nr(current), retcode, d->granted);
1016
1017         sarea_priv->last_dispatch = (int)hw_status[5];
1018
1019         return retcode;
1020 }
1021
1022 static int i810_copybuf(struct drm_device *dev, void *data,
1023                         struct drm_file *file_priv)
1024 {
1025         /* Never copy - 2.4.x doesn't need it */
1026         return 0;
1027 }
1028
1029 static int i810_docopy(struct drm_device *dev, void *data,
1030                         struct drm_file *file_priv)
1031 {
1032         /* Never copy - 2.4.x doesn't need it */
1033         return 0;
1034 }
1035
1036 static void i810_dma_dispatch_mc(struct drm_device *dev, struct drm_buf *buf, int used,
1037                                  unsigned int last_render)
1038 {
1039         drm_i810_private_t *dev_priv = dev->dev_private;
1040         drm_i810_buf_priv_t *buf_priv = buf->dev_private;
1041         drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
1042         unsigned long address = (unsigned long)buf->bus_address;
1043         unsigned long start = address - dev->agp->base;
1044         int u;
1045         RING_LOCALS;
1046
1047         i810_kernel_lost_context(dev);
1048
1049         u = cmpxchg(buf_priv->in_use, I810_BUF_CLIENT, I810_BUF_HARDWARE);
1050         if (u != I810_BUF_CLIENT)
1051                 DRM_DEBUG("MC found buffer that isn't mine!\n");
1052
1053         if (used > 4 * 1024)
1054                 used = 0;
1055
1056         sarea_priv->dirty = 0x7f;
1057
1058         DRM_DEBUG("addr 0x%lx, used 0x%x\n", address, used);
1059
1060         dev_priv->counter++;
1061         DRM_DEBUG("dispatch counter : %ld\n", dev_priv->counter);
1062         DRM_DEBUG("start : %lx\n", start);
1063         DRM_DEBUG("used : %d\n", used);
1064         DRM_DEBUG("start + used - 4 : %ld\n", start + used - 4);
1065
1066         if (buf_priv->currently_mapped == I810_BUF_MAPPED) {
1067                 if (used & 4) {
1068                         *(u32 *) ((char *) buf_priv->virtual + used) = 0;
1069                         used += 4;
1070                 }
1071
1072                 i810_unmap_buffer(buf);
1073         }
1074         BEGIN_LP_RING(4);
1075         OUT_RING(CMD_OP_BATCH_BUFFER);
1076         OUT_RING(start | BB1_PROTECTED);
1077         OUT_RING(start + used - 4);
1078         OUT_RING(0);
1079         ADVANCE_LP_RING();
1080
1081         BEGIN_LP_RING(8);
1082         OUT_RING(CMD_STORE_DWORD_IDX);
1083         OUT_RING(buf_priv->my_use_idx);
1084         OUT_RING(I810_BUF_FREE);
1085         OUT_RING(0);
1086
1087         OUT_RING(CMD_STORE_DWORD_IDX);
1088         OUT_RING(16);
1089         OUT_RING(last_render);
1090         OUT_RING(0);
1091         ADVANCE_LP_RING();
1092 }
1093
1094 static int i810_dma_mc(struct drm_device *dev, void *data,
1095                        struct drm_file *file_priv)
1096 {
1097         struct drm_device_dma *dma = dev->dma;
1098         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1099         u32 *hw_status = dev_priv->hw_status_page;
1100         drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
1101             dev_priv->sarea_priv;
1102         drm_i810_mc_t *mc = data;
1103
1104         LOCK_TEST_WITH_RETURN(dev, file_priv);
1105
1106         if (mc->idx >= dma->buf_count || mc->idx < 0)
1107                 return -EINVAL;
1108
1109         i810_dma_dispatch_mc(dev, dma->buflist[mc->idx], mc->used,
1110                              mc->last_render);
1111
1112         atomic_add(mc->used, &dev->counts[_DRM_STAT_SECONDARY]);
1113         atomic_inc(&dev->counts[_DRM_STAT_DMA]);
1114         sarea_priv->last_enqueue = dev_priv->counter - 1;
1115         sarea_priv->last_dispatch = (int)hw_status[5];
1116
1117         return 0;
1118 }
1119
1120 static int i810_rstatus(struct drm_device *dev, void *data,
1121                         struct drm_file *file_priv)
1122 {
1123         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1124
1125         return (int)(((u32 *) (dev_priv->hw_status_page))[4]);
1126 }
1127
1128 static int i810_ov0_info(struct drm_device *dev, void *data,
1129                          struct drm_file *file_priv)
1130 {
1131         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1132         drm_i810_overlay_t *ov = data;
1133
1134         ov->offset = dev_priv->overlay_offset;
1135         ov->physical = dev_priv->overlay_physical;
1136
1137         return 0;
1138 }
1139
1140 static int i810_fstatus(struct drm_device *dev, void *data,
1141                         struct drm_file *file_priv)
1142 {
1143         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1144
1145         LOCK_TEST_WITH_RETURN(dev, file_priv);
1146         return I810_READ(0x30008);
1147 }
1148
1149 static int i810_ov0_flip(struct drm_device *dev, void *data,
1150                          struct drm_file *file_priv)
1151 {
1152         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1153
1154         LOCK_TEST_WITH_RETURN(dev, file_priv);
1155
1156         /* Tell the overlay to update */
1157         I810_WRITE(0x30000, dev_priv->overlay_physical | 0x80000000);
1158
1159         return 0;
1160 }
1161
1162 /* Not sure why this isn't set all the time:
1163  */
1164 static void i810_do_init_pageflip(struct drm_device *dev)
1165 {
1166         drm_i810_private_t *dev_priv = dev->dev_private;
1167
1168         DRM_DEBUG("\n");
1169         dev_priv->page_flipping = 1;
1170         dev_priv->current_page = 0;
1171         dev_priv->sarea_priv->pf_current_page = dev_priv->current_page;
1172 }
1173
1174 static int i810_do_cleanup_pageflip(struct drm_device *dev)
1175 {
1176         drm_i810_private_t *dev_priv = dev->dev_private;
1177
1178         DRM_DEBUG("\n");
1179         if (dev_priv->current_page != 0)
1180                 i810_dma_dispatch_flip(dev);
1181
1182         dev_priv->page_flipping = 0;
1183         return 0;
1184 }
1185
1186 static int i810_flip_bufs(struct drm_device *dev, void *data,
1187                           struct drm_file *file_priv)
1188 {
1189         drm_i810_private_t *dev_priv = dev->dev_private;
1190
1191         DRM_DEBUG("\n");
1192
1193         LOCK_TEST_WITH_RETURN(dev, file_priv);
1194
1195         if (!dev_priv->page_flipping)
1196                 i810_do_init_pageflip(dev);
1197
1198         i810_dma_dispatch_flip(dev);
1199         return 0;
1200 }
1201
1202 int i810_driver_load(struct drm_device *dev, unsigned long flags)
1203 {
1204         /* i810 has 4 more counters */
1205         dev->counters += 4;
1206         dev->types[6] = _DRM_STAT_IRQ;
1207         dev->types[7] = _DRM_STAT_PRIMARY;
1208         dev->types[8] = _DRM_STAT_SECONDARY;
1209         dev->types[9] = _DRM_STAT_DMA;
1210
1211         return 0;
1212 }
1213
1214 void i810_driver_lastclose(struct drm_device *dev)
1215 {
1216         i810_dma_cleanup(dev);
1217 }
1218
1219 void i810_driver_preclose(struct drm_device *dev, struct drm_file *file_priv)
1220 {
1221         if (dev->dev_private) {
1222                 drm_i810_private_t *dev_priv = dev->dev_private;
1223                 if (dev_priv->page_flipping)
1224                         i810_do_cleanup_pageflip(dev);
1225         }
1226 }
1227
1228 void i810_driver_reclaim_buffers_locked(struct drm_device *dev,
1229                                         struct drm_file *file_priv)
1230 {
1231         i810_reclaim_buffers(dev, file_priv);
1232 }
1233
1234 int i810_driver_dma_quiescent(struct drm_device *dev)
1235 {
1236         i810_dma_quiescent(dev);
1237         return 0;
1238 }
1239
1240 struct drm_ioctl_desc i810_ioctls[] = {
1241         DRM_IOCTL_DEF_DRV(I810_INIT, i810_dma_init, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY|DRM_UNLOCKED),
1242         DRM_IOCTL_DEF_DRV(I810_VERTEX, i810_dma_vertex, DRM_AUTH|DRM_UNLOCKED),
1243         DRM_IOCTL_DEF_DRV(I810_CLEAR, i810_clear_bufs, DRM_AUTH|DRM_UNLOCKED),
1244         DRM_IOCTL_DEF_DRV(I810_FLUSH, i810_flush_ioctl, DRM_AUTH|DRM_UNLOCKED),
1245         DRM_IOCTL_DEF_DRV(I810_GETAGE, i810_getage, DRM_AUTH|DRM_UNLOCKED),
1246         DRM_IOCTL_DEF_DRV(I810_GETBUF, i810_getbuf, DRM_AUTH|DRM_UNLOCKED),
1247         DRM_IOCTL_DEF_DRV(I810_SWAP, i810_swap_bufs, DRM_AUTH|DRM_UNLOCKED),
1248         DRM_IOCTL_DEF_DRV(I810_COPY, i810_copybuf, DRM_AUTH|DRM_UNLOCKED),
1249         DRM_IOCTL_DEF_DRV(I810_DOCOPY, i810_docopy, DRM_AUTH|DRM_UNLOCKED),
1250         DRM_IOCTL_DEF_DRV(I810_OV0INFO, i810_ov0_info, DRM_AUTH|DRM_UNLOCKED),
1251         DRM_IOCTL_DEF_DRV(I810_FSTATUS, i810_fstatus, DRM_AUTH|DRM_UNLOCKED),
1252         DRM_IOCTL_DEF_DRV(I810_OV0FLIP, i810_ov0_flip, DRM_AUTH|DRM_UNLOCKED),
1253         DRM_IOCTL_DEF_DRV(I810_MC, i810_dma_mc, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY|DRM_UNLOCKED),
1254         DRM_IOCTL_DEF_DRV(I810_RSTATUS, i810_rstatus, DRM_AUTH|DRM_UNLOCKED),
1255         DRM_IOCTL_DEF_DRV(I810_FLIP, i810_flip_bufs, DRM_AUTH|DRM_UNLOCKED),
1256 };
1257
1258 int i810_max_ioctl = DRM_ARRAY_SIZE(i810_ioctls);
1259
1260 /**
1261  * Determine if the device really is AGP or not.
1262  *
1263  * All Intel graphics chipsets are treated as AGP, even if they are really
1264  * PCI-e.
1265  *
1266  * \param dev   The device to be tested.
1267  *
1268  * \returns
1269  * A value of 1 is always retured to indictate every i810 is AGP.
1270  */
1271 int i810_driver_device_is_agp(struct drm_device *dev)
1272 {
1273         return 1;
1274 }