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         }
  67         return NULL;
  68 }
  69
  70 /* This should only be called if the buffer is not sent to the hardware
  71  * yet, the hardware updates in use for us once its on the ring buffer.
  72  */
  73
  74 static int i810_freelist_put(struct drm_device * dev, struct drm_buf * buf)
  75 {
  76         drm_i810_buf_priv_t *buf_priv = buf->dev_private;
  77         int used;
  78
  79         /* In use is already a pointer */
  80         used = cmpxchg(buf_priv->in_use, I810_BUF_CLIENT, I810_BUF_FREE);
  81         if (used != I810_BUF_CLIENT) {
  82                 DRM_ERROR("Freeing buffer thats not in use : %d\n", buf->idx);
  83                 return -EINVAL;
  84         }
  85
  86         return 0;
  87 }
  88
  89 static int i810_mmap_buffers(struct file *filp, struct vm_area_struct *vma)
  90 {
  91         struct drm_file *priv = filp->private_data;
  92         struct drm_device *dev;
  93         drm_i810_private_t *dev_priv;
  94         struct drm_buf *buf;
  95         drm_i810_buf_priv_t *buf_priv;
  96
  97         lock_kernel();
  98         dev = priv->minor->dev;
  99         dev_priv = dev->dev_private;
 100         buf = dev_priv->mmap_buffer;
 101         buf_priv = buf->dev_private;
 102
 103         vma->vm_flags |= (VM_IO | VM_DONTCOPY);
 104         vma->vm_file = filp;
 105
 106         buf_priv->currently_mapped = I810_BUF_MAPPED;
 107         unlock_kernel();
 108
 109         if (io_remap_pfn_range(vma, vma->vm_start,
 110                                vma->vm_pgoff,
 111                                vma->vm_end - vma->vm_start, vma->vm_page_prot))
 112                 return -EAGAIN;
 113         return 0;
 114 }
 115
 116 static const struct file_operations i810_buffer_fops = {
 117         .open = drm_open,
 118         .release = drm_release,
 119         .unlocked_ioctl = drm_ioctl,
 120         .mmap = i810_mmap_buffers,
 121         .fasync = drm_fasync,
 122 };
 123
 124 static int i810_map_buffer(struct drm_buf * buf, struct drm_file *file_priv)
 125 {
 126         struct drm_device *dev = file_priv->minor->dev;
 127         drm_i810_buf_priv_t *buf_priv = buf->dev_private;
 128         drm_i810_private_t *dev_priv = dev->dev_private;
 129         const struct file_operations *old_fops;
 130         int retcode = 0;
 131
 132         if (buf_priv->currently_mapped == I810_BUF_MAPPED)
 133                 return -EINVAL;
 134
 135         down_write(&current->mm->mmap_sem);
 136         old_fops = file_priv->filp->f_op;
 137         file_priv->filp->f_op = &i810_buffer_fops;
 138         dev_priv->mmap_buffer = buf;
 139         buf_priv->virtual = (void *)do_mmap(file_priv->filp, 0, buf->total,
 140                                             PROT_READ | PROT_WRITE,
 141                                             MAP_SHARED, buf->bus_address);
 142         dev_priv->mmap_buffer = NULL;
 143         file_priv->filp->f_op = old_fops;
 144         if (IS_ERR(buf_priv->virtual)) {
 145                 /* Real error */
 146                 DRM_ERROR("mmap error\n");
 147                 retcode = PTR_ERR(buf_priv->virtual);
 148                 buf_priv->virtual = NULL;
 149         }
 150         up_write(&current->mm->mmap_sem);
 151
 152         return retcode;
 153 }
 154
 155 static int i810_unmap_buffer(struct drm_buf * buf)
 156 {
 157         drm_i810_buf_priv_t *buf_priv = buf->dev_private;
 158         int retcode = 0;
 159
 160         if (buf_priv->currently_mapped != I810_BUF_MAPPED)
 161                 return -EINVAL;
 162
 163         down_write(&current->mm->mmap_sem);
 164         retcode = do_munmap(current->mm,
 165                             (unsigned long)buf_priv->virtual,
 166                             (size_t) buf->total);
 167         up_write(&current->mm->mmap_sem);
 168
 169         buf_priv->currently_mapped = I810_BUF_UNMAPPED;
 170         buf_priv->virtual = NULL;
 171
 172         return retcode;
 173 }
 174
 175 static int i810_dma_get_buffer(struct drm_device * dev, drm_i810_dma_t * d,
 176                                struct drm_file *file_priv)
 177 {
 178         struct drm_buf *buf;
 179         drm_i810_buf_priv_t *buf_priv;
 180         int retcode = 0;
 181
 182         buf = i810_freelist_get(dev);
 183         if (!buf) {
 184                 retcode = -ENOMEM;
 185                 DRM_DEBUG("retcode=%d\n", retcode);
 186                 return retcode;
 187         }
 188
 189         retcode = i810_map_buffer(buf, file_priv);
 190         if (retcode) {
 191                 i810_freelist_put(dev, buf);
 192                 DRM_ERROR("mapbuf failed, retcode %d\n", retcode);
 193                 return retcode;
 194         }
 195         buf->file_priv = file_priv;
 196         buf_priv = buf->dev_private;
 197         d->granted = 1;
 198         d->request_idx = buf->idx;
 199         d->request_size = buf->total;
 200         d->virtual = buf_priv->virtual;
 201
 202         return retcode;
 203 }
 204
 205 static int i810_dma_cleanup(struct drm_device * dev)
 206 {
 207         struct drm_device_dma *dma = dev->dma;
 208
 209         /* Make sure interrupts are disabled here because the uninstall ioctl
 210          * may not have been called from userspace and after dev_private
 211          * is freed, it's too late.
 212          */
 213         if (drm_core_check_feature(dev, DRIVER_HAVE_IRQ) && dev->irq_enabled)
 214                 drm_irq_uninstall(dev);
 215
 216         if (dev->dev_private) {
 217                 int i;
 218                 drm_i810_private_t *dev_priv =
 219                     (drm_i810_private_t *) dev->dev_private;
 220
 221                 if (dev_priv->ring.virtual_start) {
 222                         drm_core_ioremapfree(&dev_priv->ring.map, dev);
 223                 }
 224                 if (dev_priv->hw_status_page) {
 225                         pci_free_consistent(dev->pdev, PAGE_SIZE,
 226                                             dev_priv->hw_status_page,
 227                                             dev_priv->dma_status_page);
 228                         /* Need to rewrite hardware status page */
 229                         I810_WRITE(0x02080, 0x1ffff000);
 230                 }
 231                 kfree(dev->dev_private);
 232                 dev->dev_private = NULL;
 233
 234                 for (i = 0; i < dma->buf_count; i++) {
 235                         struct drm_buf *buf = dma->buflist[i];
 236                         drm_i810_buf_priv_t *buf_priv = buf->dev_private;
 237
 238                         if (buf_priv->kernel_virtual && buf->total)
 239                                 drm_core_ioremapfree(&buf_priv->map, dev);
 240                 }
 241         }
 242         return 0;
 243 }
 244
 245 static int i810_wait_ring(struct drm_device * dev, int n)
 246 {
 247         drm_i810_private_t *dev_priv = dev->dev_private;
 248         drm_i810_ring_buffer_t *ring = &(dev_priv->ring);
 249         int iters = 0;
 250         unsigned long end;
 251         unsigned int last_head = I810_READ(LP_RING + RING_HEAD) & HEAD_ADDR;
 252
 253         end = jiffies + (HZ * 3);
 254         while (ring->space < n) {
 255                 ring->head = I810_READ(LP_RING + RING_HEAD) & HEAD_ADDR;
 256                 ring->space = ring->head - (ring->tail + 8);
 257                 if (ring->space < 0)
 258                         ring->space += ring->Size;
 259
 260                 if (ring->head != last_head) {
 261                         end = jiffies + (HZ * 3);
 262                         last_head = ring->head;
 263                 }
 264
 265                 iters++;
 266                 if (time_before(end, jiffies)) {
 267                         DRM_ERROR("space: %d wanted %d\n", ring->space, n);
 268                         DRM_ERROR("lockup\n");
 269                         goto out_wait_ring;
 270                 }
 271                 udelay(1);
 272         }
 273
 274       out_wait_ring:
 275         return iters;
 276 }
 277
 278 static void i810_kernel_lost_context(struct drm_device * dev)
 279 {
 280         drm_i810_private_t *dev_priv = dev->dev_private;
 281         drm_i810_ring_buffer_t *ring = &(dev_priv->ring);
 282
 283         ring->head = I810_READ(LP_RING + RING_HEAD) & HEAD_ADDR;
 284         ring->tail = I810_READ(LP_RING + RING_TAIL);
 285         ring->space = ring->head - (ring->tail + 8);
 286         if (ring->space < 0)
 287                 ring->space += ring->Size;
 288 }
 289
 290 static int i810_freelist_init(struct drm_device * dev, drm_i810_private_t * dev_priv)
 291 {
 292         struct drm_device_dma *dma = dev->dma;
 293         int my_idx = 24;
 294         u32 *hw_status = (u32 *) (dev_priv->hw_status_page + my_idx);
 295         int i;
 296
 297         if (dma->buf_count > 1019) {
 298                 /* Not enough space in the status page for the freelist */
 299                 return -EINVAL;
 300         }
 301
 302         for (i = 0; i < dma->buf_count; i++) {
 303                 struct drm_buf *buf = dma->buflist[i];
 304                 drm_i810_buf_priv_t *buf_priv = buf->dev_private;
 305
 306                 buf_priv->in_use = hw_status++;
 307                 buf_priv->my_use_idx = my_idx;
 308                 my_idx += 4;
 309
 310                 *buf_priv->in_use = I810_BUF_FREE;
 311
 312                 buf_priv->map.offset = buf->bus_address;
 313                 buf_priv->map.size = buf->total;
 314                 buf_priv->map.type = _DRM_AGP;
 315                 buf_priv->map.flags = 0;
 316                 buf_priv->map.mtrr = 0;
 317
 318                 drm_core_ioremap(&buf_priv->map, dev);
 319                 buf_priv->kernel_virtual = buf_priv->map.handle;
 320
 321         }
 322         return 0;
 323 }
 324
 325 static int i810_dma_initialize(struct drm_device * dev,
 326                                drm_i810_private_t * dev_priv,
 327                                drm_i810_init_t * init)
 328 {
 329         struct drm_map_list *r_list;
 330         memset(dev_priv, 0, sizeof(drm_i810_private_t));
 331
 332         list_for_each_entry(r_list, &dev->maplist, head) {
 333                 if (r_list->map &&
 334                     r_list->map->type == _DRM_SHM &&
 335                     r_list->map->flags & _DRM_CONTAINS_LOCK) {
 336                         dev_priv->sarea_map = r_list->map;
 337                         break;
 338                 }
 339         }
 340         if (!dev_priv->sarea_map) {
 341                 dev->dev_private = (void *)dev_priv;
 342                 i810_dma_cleanup(dev);
 343                 DRM_ERROR("can not find sarea!\n");
 344                 return -EINVAL;
 345         }
 346         dev_priv->mmio_map = drm_core_findmap(dev, init->mmio_offset);
 347         if (!dev_priv->mmio_map) {
 348                 dev->dev_private = (void *)dev_priv;
 349                 i810_dma_cleanup(dev);
 350                 DRM_ERROR("can not find mmio map!\n");
 351                 return -EINVAL;
 352         }
 353         dev->agp_buffer_token = init->buffers_offset;
 354         dev->agp_buffer_map = drm_core_findmap(dev, init->buffers_offset);
 355         if (!dev->agp_buffer_map) {
 356                 dev->dev_private = (void *)dev_priv;
 357                 i810_dma_cleanup(dev);
 358                 DRM_ERROR("can not find dma buffer map!\n");
 359                 return -EINVAL;
 360         }
 361
 362         dev_priv->sarea_priv = (drm_i810_sarea_t *)
 363             ((u8 *) dev_priv->sarea_map->handle + init->sarea_priv_offset);
 364
 365         dev_priv->ring.Start = init->ring_start;
 366         dev_priv->ring.End = init->ring_end;
 367         dev_priv->ring.Size = init->ring_size;
 368
 369         dev_priv->ring.map.offset = dev->agp->base + init->ring_start;
 370         dev_priv->ring.map.size = init->ring_size;
 371         dev_priv->ring.map.type = _DRM_AGP;
 372         dev_priv->ring.map.flags = 0;
 373         dev_priv->ring.map.mtrr = 0;
 374
 375         drm_core_ioremap(&dev_priv->ring.map, dev);
 376
 377         if (dev_priv->ring.map.handle == NULL) {
 378                 dev->dev_private = (void *)dev_priv;
 379                 i810_dma_cleanup(dev);
 380                 DRM_ERROR("can not ioremap virtual address for"
 381                           " ring buffer\n");
 382                 return -ENOMEM;
 383         }
 384
 385         dev_priv->ring.virtual_start = dev_priv->ring.map.handle;
 386
 387         dev_priv->ring.tail_mask = dev_priv->ring.Size - 1;
 388
 389         dev_priv->w = init->w;
 390         dev_priv->h = init->h;
 391         dev_priv->pitch = init->pitch;
 392         dev_priv->back_offset = init->back_offset;
 393         dev_priv->depth_offset = init->depth_offset;
 394         dev_priv->front_offset = init->front_offset;
 395
 396         dev_priv->overlay_offset = init->overlay_offset;
 397         dev_priv->overlay_physical = init->overlay_physical;
 398
 399         dev_priv->front_di1 = init->front_offset | init->pitch_bits;
 400         dev_priv->back_di1 = init->back_offset | init->pitch_bits;
 401         dev_priv->zi1 = init->depth_offset | init->pitch_bits;
 402
 403         /* Program Hardware Status Page */
 404         dev_priv->hw_status_page =
 405             pci_alloc_consistent(dev->pdev, PAGE_SIZE,
 406                                  &dev_priv->dma_status_page);
 407         if (!dev_priv->hw_status_page) {
 408                 dev->dev_private = (void *)dev_priv;
 409                 i810_dma_cleanup(dev);
 410                 DRM_ERROR("Can not allocate hardware status page\n");
 411                 return -ENOMEM;
 412         }
 413         memset(dev_priv->hw_status_page, 0, PAGE_SIZE);
 414         DRM_DEBUG("hw status page @ %p\n", dev_priv->hw_status_page);
 415
 416         I810_WRITE(0x02080, dev_priv->dma_status_page);
 417         DRM_DEBUG("Enabled hardware status page\n");
 418
 419         /* Now we need to init our freelist */
 420         if (i810_freelist_init(dev, dev_priv) != 0) {
 421                 dev->dev_private = (void *)dev_priv;
 422                 i810_dma_cleanup(dev);
 423                 DRM_ERROR("Not enough space in the status page for"
 424                           " the freelist\n");
 425                 return -ENOMEM;
 426         }
 427         dev->dev_private = (void *)dev_priv;
 428
 429         return 0;
 430 }
 431
 432 static int i810_dma_init(struct drm_device *dev, void *data,
 433                          struct drm_file *file_priv)
 434 {
 435         drm_i810_private_t *dev_priv;
 436         drm_i810_init_t *init = data;
 437         int retcode = 0;
 438
 439         switch (init->func) {
 440         case I810_INIT_DMA_1_4:
 441                 DRM_INFO("Using v1.4 init.\n");
 442                 dev_priv = kmalloc(sizeof(drm_i810_private_t), GFP_KERNEL);
 443                 if (dev_priv == NULL)
 444                         return -ENOMEM;
 445                 retcode = i810_dma_initialize(dev, dev_priv, init);
 446                 break;
 447
 448         case I810_CLEANUP_DMA:
 449                 DRM_INFO("DMA Cleanup\n");
 450                 retcode = i810_dma_cleanup(dev);
 451                 break;
 452         default:
 453                 return -EINVAL;
 454         }
 455
 456         return retcode;
 457 }
 458
 459 /* Most efficient way to verify state for the i810 is as it is
 460  * emitted.  Non-conformant state is silently dropped.
 461  *
 462  * Use 'volatile' & local var tmp to force the emitted values to be
 463  * identical to the verified ones.
 464  */
 465 static void i810EmitContextVerified(struct drm_device * dev,
 466                                     volatile unsigned int *code)
 467 {
 468         drm_i810_private_t *dev_priv = dev->dev_private;
 469         int i, j = 0;
 470         unsigned int tmp;
 471         RING_LOCALS;
 472
 473         BEGIN_LP_RING(I810_CTX_SETUP_SIZE);
 474
 475         OUT_RING(GFX_OP_COLOR_FACTOR);
 476         OUT_RING(code[I810_CTXREG_CF1]);
 477
 478         OUT_RING(GFX_OP_STIPPLE);
 479         OUT_RING(code[I810_CTXREG_ST1]);
 480
 481         for (i = 4; i < I810_CTX_SETUP_SIZE; i++) {
 482                 tmp = code[i];
 483
 484                 if ((tmp & (7 << 29)) == (3 << 29) &&
 485                     (tmp & (0x1f << 24)) < (0x1d << 24)) {
 486                         OUT_RING(tmp);
 487                         j++;
 488                 } else
 489                         printk("constext state dropped!!!\n");
 490         }
 491
 492         if (j & 1)
 493                 OUT_RING(0);
 494
 495         ADVANCE_LP_RING();
 496 }
 497
 498 static void i810EmitTexVerified(struct drm_device * dev, volatile unsigned int *code)
 499 {
 500         drm_i810_private_t *dev_priv = dev->dev_private;
 501         int i, j = 0;
 502         unsigned int tmp;
 503         RING_LOCALS;
 504
 505         BEGIN_LP_RING(I810_TEX_SETUP_SIZE);
 506
 507         OUT_RING(GFX_OP_MAP_INFO);
 508         OUT_RING(code[I810_TEXREG_MI1]);
 509         OUT_RING(code[I810_TEXREG_MI2]);
 510         OUT_RING(code[I810_TEXREG_MI3]);
 511
 512         for (i = 4; i < I810_TEX_SETUP_SIZE; i++) {
 513                 tmp = code[i];
 514
 515                 if ((tmp & (7 << 29)) == (3 << 29) &&
 516                     (tmp & (0x1f << 24)) < (0x1d << 24)) {
 517                         OUT_RING(tmp);
 518                         j++;
 519                 } else
 520                         printk("texture state dropped!!!\n");
 521         }
 522
 523         if (j & 1)
 524                 OUT_RING(0);
 525
 526         ADVANCE_LP_RING();
 527 }
 528
 529 /* Need to do some additional checking when setting the dest buffer.
 530  */
 531 static void i810EmitDestVerified(struct drm_device * dev,
 532                                  volatile unsigned int *code)
 533 {
 534         drm_i810_private_t *dev_priv = dev->dev_private;
 535         unsigned int tmp;
 536         RING_LOCALS;
 537
 538         BEGIN_LP_RING(I810_DEST_SETUP_SIZE + 2);
 539
 540         tmp = code[I810_DESTREG_DI1];
 541         if (tmp == dev_priv->front_di1 || tmp == dev_priv->back_di1) {
 542                 OUT_RING(CMD_OP_DESTBUFFER_INFO);
 543                 OUT_RING(tmp);
 544         } else
 545                 DRM_DEBUG("bad di1 %x (allow %x or %x)\n",
 546                           tmp, dev_priv->front_di1, dev_priv->back_di1);
 547
 548         /* invarient:
 549          */
 550         OUT_RING(CMD_OP_Z_BUFFER_INFO);
 551         OUT_RING(dev_priv->zi1);
 552
 553         OUT_RING(GFX_OP_DESTBUFFER_VARS);
 554         OUT_RING(code[I810_DESTREG_DV1]);
 555
 556         OUT_RING(GFX_OP_DRAWRECT_INFO);
 557         OUT_RING(code[I810_DESTREG_DR1]);
 558         OUT_RING(code[I810_DESTREG_DR2]);
 559         OUT_RING(code[I810_DESTREG_DR3]);
 560         OUT_RING(code[I810_DESTREG_DR4]);
 561         OUT_RING(0);
 562
 563         ADVANCE_LP_RING();
 564 }
 565
 566 static void i810EmitState(struct drm_device * dev)
 567 {
 568         drm_i810_private_t *dev_priv = dev->dev_private;
 569         drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
 570         unsigned int dirty = sarea_priv->dirty;
 571
 572         DRM_DEBUG("%x\n", dirty);
 573
 574         if (dirty & I810_UPLOAD_BUFFERS) {
 575                 i810EmitDestVerified(dev, sarea_priv->BufferState);
 576                 sarea_priv->dirty &= ~I810_UPLOAD_BUFFERS;
 577         }
 578
 579         if (dirty & I810_UPLOAD_CTX) {
 580                 i810EmitContextVerified(dev, sarea_priv->ContextState);
 581                 sarea_priv->dirty &= ~I810_UPLOAD_CTX;
 582         }
 583
 584         if (dirty & I810_UPLOAD_TEX0) {
 585                 i810EmitTexVerified(dev, sarea_priv->TexState[0]);
 586                 sarea_priv->dirty &= ~I810_UPLOAD_TEX0;
 587         }
 588
 589         if (dirty & I810_UPLOAD_TEX1) {
 590                 i810EmitTexVerified(dev, sarea_priv->TexState[1]);
 591                 sarea_priv->dirty &= ~I810_UPLOAD_TEX1;
 592         }
 593 }
 594
 595 /* need to verify
 596  */
 597 static void i810_dma_dispatch_clear(struct drm_device * dev, int flags,
 598                                     unsigned int clear_color,
 599                                     unsigned int clear_zval)
 600 {
 601         drm_i810_private_t *dev_priv = dev->dev_private;
 602         drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
 603         int nbox = sarea_priv->nbox;
 604         struct drm_clip_rect *pbox = sarea_priv->boxes;
 605         int pitch = dev_priv->pitch;
 606         int cpp = 2;
 607         int i;
 608         RING_LOCALS;
 609
 610         if (dev_priv->current_page == 1) {
 611                 unsigned int tmp = flags;
 612
 613                 flags &= ~(I810_FRONT | I810_BACK);
 614                 if (tmp & I810_FRONT)
 615                         flags |= I810_BACK;
 616                 if (tmp & I810_BACK)
 617                         flags |= I810_FRONT;
 618         }
 619
 620         i810_kernel_lost_context(dev);
 621
 622         if (nbox > I810_NR_SAREA_CLIPRECTS)
 623                 nbox = I810_NR_SAREA_CLIPRECTS;
 624
 625         for (i = 0; i < nbox; i++, pbox++) {
 626                 unsigned int x = pbox->x1;
 627                 unsigned int y = pbox->y1;
 628                 unsigned int width = (pbox->x2 - x) * cpp;
 629                 unsigned int height = pbox->y2 - y;
 630                 unsigned int start = y * pitch + x * cpp;
 631
 632                 if (pbox->x1 > pbox->x2 ||
 633                     pbox->y1 > pbox->y2 ||
 634                     pbox->x2 > dev_priv->w || pbox->y2 > dev_priv->h)
 635                         continue;
 636
 637                 if (flags & I810_FRONT) {
 638                         BEGIN_LP_RING(6);
 639                         OUT_RING(BR00_BITBLT_CLIENT | BR00_OP_COLOR_BLT | 0x3);
 640                         OUT_RING(BR13_SOLID_PATTERN | (0xF0 << 16) | pitch);
 641                         OUT_RING((height << 16) | width);
 642                         OUT_RING(start);
 643                         OUT_RING(clear_color);
 644                         OUT_RING(0);
 645                         ADVANCE_LP_RING();
 646                 }
 647
 648                 if (flags & I810_BACK) {
 649                         BEGIN_LP_RING(6);
 650                         OUT_RING(BR00_BITBLT_CLIENT | BR00_OP_COLOR_BLT | 0x3);
 651                         OUT_RING(BR13_SOLID_PATTERN | (0xF0 << 16) | pitch);
 652                         OUT_RING((height << 16) | width);
 653                         OUT_RING(dev_priv->back_offset + start);
 654                         OUT_RING(clear_color);
 655                         OUT_RING(0);
 656                         ADVANCE_LP_RING();
 657                 }
 658
 659                 if (flags & I810_DEPTH) {
 660                         BEGIN_LP_RING(6);
 661                         OUT_RING(BR00_BITBLT_CLIENT | BR00_OP_COLOR_BLT | 0x3);
 662                         OUT_RING(BR13_SOLID_PATTERN | (0xF0 << 16) | pitch);
 663                         OUT_RING((height << 16) | width);
 664                         OUT_RING(dev_priv->depth_offset + start);
 665                         OUT_RING(clear_zval);
 666                         OUT_RING(0);
 667                         ADVANCE_LP_RING();
 668                 }
 669         }
 670 }
 671
 672 static void i810_dma_dispatch_swap(struct drm_device * dev)
 673 {
 674         drm_i810_private_t *dev_priv = dev->dev_private;
 675         drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
 676         int nbox = sarea_priv->nbox;
 677         struct drm_clip_rect *pbox = sarea_priv->boxes;
 678         int pitch = dev_priv->pitch;
 679         int cpp = 2;
 680         int i;
 681         RING_LOCALS;
 682
 683         DRM_DEBUG("swapbuffers\n");
 684
 685         i810_kernel_lost_context(dev);
 686
 687         if (nbox > I810_NR_SAREA_CLIPRECTS)
 688                 nbox = I810_NR_SAREA_CLIPRECTS;
 689
 690         for (i = 0; i < nbox; i++, pbox++) {
 691                 unsigned int w = pbox->x2 - pbox->x1;
 692                 unsigned int h = pbox->y2 - pbox->y1;
 693                 unsigned int dst = pbox->x1 * cpp + pbox->y1 * pitch;
 694                 unsigned int start = dst;
 695
 696                 if (pbox->x1 > pbox->x2 ||
 697                     pbox->y1 > pbox->y2 ||
 698                     pbox->x2 > dev_priv->w || pbox->y2 > dev_priv->h)
 699                         continue;
 700
 701                 BEGIN_LP_RING(6);
 702                 OUT_RING(BR00_BITBLT_CLIENT | BR00_OP_SRC_COPY_BLT | 0x4);
 703                 OUT_RING(pitch | (0xCC << 16));
 704                 OUT_RING((h << 16) | (w * cpp));
 705                 if (dev_priv->current_page == 0)
 706                         OUT_RING(dev_priv->front_offset + start);
 707                 else
 708                         OUT_RING(dev_priv->back_offset + start);
 709                 OUT_RING(pitch);
 710                 if (dev_priv->current_page == 0)
 711                         OUT_RING(dev_priv->back_offset + start);
 712                 else
 713                         OUT_RING(dev_priv->front_offset + start);
 714                 ADVANCE_LP_RING();
 715         }
 716 }
 717
 718 static void i810_dma_dispatch_vertex(struct drm_device * dev,
 719                                      struct drm_buf * buf, int discard, int used)
 720 {
 721         drm_i810_private_t *dev_priv = dev->dev_private;
 722         drm_i810_buf_priv_t *buf_priv = buf->dev_private;
 723         drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
 724         struct drm_clip_rect *box = sarea_priv->boxes;
 725         int nbox = sarea_priv->nbox;
 726         unsigned long address = (unsigned long)buf->bus_address;
 727         unsigned long start = address - dev->agp->base;
 728         int i = 0;
 729         RING_LOCALS;
 730
 731         i810_kernel_lost_context(dev);
 732
 733         if (nbox > I810_NR_SAREA_CLIPRECTS)
 734                 nbox = I810_NR_SAREA_CLIPRECTS;
 735
 736         if (used > 4 * 1024)
 737                 used = 0;
 738
 739         if (sarea_priv->dirty)
 740                 i810EmitState(dev);
 741
 742         if (buf_priv->currently_mapped == I810_BUF_MAPPED) {
 743                 unsigned int prim = (sarea_priv->vertex_prim & PR_MASK);
 744
 745                 *(u32 *) buf_priv->kernel_virtual =
 746                     ((GFX_OP_PRIMITIVE | prim | ((used / 4) - 2)));
 747
 748                 if (used & 4) {
 749                         *(u32 *) ((char *) buf_priv->kernel_virtual + used) = 0;
 750                         used += 4;
 751                 }
 752
 753                 i810_unmap_buffer(buf);
 754         }
 755
 756         if (used) {
 757                 do {
 758                         if (i < nbox) {
 759                                 BEGIN_LP_RING(4);
 760                                 OUT_RING(GFX_OP_SCISSOR | SC_UPDATE_SCISSOR |
 761                                          SC_ENABLE);
 762                                 OUT_RING(GFX_OP_SCISSOR_INFO);
 763                                 OUT_RING(box[i].x1 | (box[i].y1 << 16));
 764                                 OUT_RING((box[i].x2 -
 765                                           1) | ((box[i].y2 - 1) << 16));
 766                                 ADVANCE_LP_RING();
 767                         }
 768
 769                         BEGIN_LP_RING(4);
 770                         OUT_RING(CMD_OP_BATCH_BUFFER);
 771                         OUT_RING(start | BB1_PROTECTED);
 772                         OUT_RING(start + used - 4);
 773                         OUT_RING(0);
 774                         ADVANCE_LP_RING();
 775
 776                 } while (++i < nbox);
 777         }
 778
 779         if (discard) {
 780                 dev_priv->counter++;
 781
 782                 (void)cmpxchg(buf_priv->in_use, I810_BUF_CLIENT,
 783                               I810_BUF_HARDWARE);
 784
 785                 BEGIN_LP_RING(8);
 786                 OUT_RING(CMD_STORE_DWORD_IDX);
 787                 OUT_RING(20);
 788                 OUT_RING(dev_priv->counter);
 789                 OUT_RING(CMD_STORE_DWORD_IDX);
 790                 OUT_RING(buf_priv->my_use_idx);
 791                 OUT_RING(I810_BUF_FREE);
 792                 OUT_RING(CMD_REPORT_HEAD);
 793                 OUT_RING(0);
 794                 ADVANCE_LP_RING();
 795         }
 796 }
 797
 798 static void i810_dma_dispatch_flip(struct drm_device * dev)
 799 {
 800         drm_i810_private_t *dev_priv = dev->dev_private;
 801         int pitch = dev_priv->pitch;
 802         RING_LOCALS;
 803
 804         DRM_DEBUG("page=%d pfCurrentPage=%d\n",
 805                   dev_priv->current_page,
 806                   dev_priv->sarea_priv->pf_current_page);
 807
 808         i810_kernel_lost_context(dev);
 809
 810         BEGIN_LP_RING(2);
 811         OUT_RING(INST_PARSER_CLIENT | INST_OP_FLUSH | INST_FLUSH_MAP_CACHE);
 812         OUT_RING(0);
 813         ADVANCE_LP_RING();
 814
 815         BEGIN_LP_RING(I810_DEST_SETUP_SIZE + 2);
 816         /* On i815 at least ASYNC is buggy */
 817         /* pitch<<5 is from 11.2.8 p158,
 818            its the pitch / 8 then left shifted 8,
 819            so (pitch >> 3) << 8 */
 820         OUT_RING(CMD_OP_FRONTBUFFER_INFO | (pitch << 5) /*| ASYNC_FLIP */ );
 821         if (dev_priv->current_page == 0) {
 822                 OUT_RING(dev_priv->back_offset);
 823                 dev_priv->current_page = 1;
 824         } else {
 825                 OUT_RING(dev_priv->front_offset);
 826                 dev_priv->current_page = 0;
 827         }
 828         OUT_RING(0);
 829         ADVANCE_LP_RING();
 830
 831         BEGIN_LP_RING(2);
 832         OUT_RING(CMD_OP_WAIT_FOR_EVENT | WAIT_FOR_PLANE_A_FLIP);
 833         OUT_RING(0);
 834         ADVANCE_LP_RING();
 835
 836         /* Increment the frame counter.  The client-side 3D driver must
 837          * throttle the framerate by waiting for this value before
 838          * performing the swapbuffer ioctl.
 839          */
 840         dev_priv->sarea_priv->pf_current_page = dev_priv->current_page;
 841
 842 }
 843
 844 static void i810_dma_quiescent(struct drm_device * dev)
 845 {
 846         drm_i810_private_t *dev_priv = dev->dev_private;
 847         RING_LOCALS;
 848
 849         i810_kernel_lost_context(dev);
 850
 851         BEGIN_LP_RING(4);
 852         OUT_RING(INST_PARSER_CLIENT | INST_OP_FLUSH | INST_FLUSH_MAP_CACHE);
 853         OUT_RING(CMD_REPORT_HEAD);
 854         OUT_RING(0);
 855         OUT_RING(0);
 856         ADVANCE_LP_RING();
 857
 858         i810_wait_ring(dev, dev_priv->ring.Size - 8);
 859 }
 860
 861 static int i810_flush_queue(struct drm_device * dev)
 862 {
 863         drm_i810_private_t *dev_priv = dev->dev_private;
 864         struct drm_device_dma *dma = dev->dma;
 865         int i, ret = 0;
 866         RING_LOCALS;
 867
 868         i810_kernel_lost_context(dev);
 869
 870         BEGIN_LP_RING(2);
 871         OUT_RING(CMD_REPORT_HEAD);
 872         OUT_RING(0);
 873         ADVANCE_LP_RING();
 874
 875         i810_wait_ring(dev, dev_priv->ring.Size - 8);
 876
 877         for (i = 0; i < dma->buf_count; i++) {
 878                 struct drm_buf *buf = dma->buflist[i];
 879                 drm_i810_buf_priv_t *buf_priv = buf->dev_private;
 880
 881                 int used = cmpxchg(buf_priv->in_use, I810_BUF_HARDWARE,
 882                                    I810_BUF_FREE);
 883
 884                 if (used == I810_BUF_HARDWARE)
 885                         DRM_DEBUG("reclaimed from HARDWARE\n");
 886                 if (used == I810_BUF_CLIENT)
 887                         DRM_DEBUG("still on client\n");
 888         }
 889
 890         return ret;
 891 }
 892
 893 /* Must be called with the lock held */
 894 static void i810_reclaim_buffers(struct drm_device * dev,
 895                                  struct drm_file *file_priv)
 896 {
 897         struct drm_device_dma *dma = dev->dma;
 898         int i;
 899
 900         if (!dma)
 901                 return;
 902         if (!dev->dev_private)
 903                 return;
 904         if (!dma->buflist)
 905                 return;
 906
 907         i810_flush_queue(dev);
 908
 909         for (i = 0; i < dma->buf_count; i++) {
 910                 struct drm_buf *buf = dma->buflist[i];
 911                 drm_i810_buf_priv_t *buf_priv = buf->dev_private;
 912
 913                 if (buf->file_priv == file_priv && buf_priv) {
 914                         int used = cmpxchg(buf_priv->in_use, I810_BUF_CLIENT,
 915                                            I810_BUF_FREE);
 916
 917                         if (used == I810_BUF_CLIENT)
 918                                 DRM_DEBUG("reclaimed from client\n");
 919                         if (buf_priv->currently_mapped == I810_BUF_MAPPED)
 920                                 buf_priv->currently_mapped = I810_BUF_UNMAPPED;
 921                 }
 922         }
 923 }
 924
 925 static int i810_flush_ioctl(struct drm_device *dev, void *data,
 926                             struct drm_file *file_priv)
 927 {
 928         LOCK_TEST_WITH_RETURN(dev, file_priv);
 929
 930         i810_flush_queue(dev);
 931         return 0;
 932 }
 933
 934 static int i810_dma_vertex(struct drm_device *dev, void *data,
 935                            struct drm_file *file_priv)
 936 {
 937         struct drm_device_dma *dma = dev->dma;
 938         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
 939         u32 *hw_status = dev_priv->hw_status_page;
 940         drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
 941             dev_priv->sarea_priv;
 942         drm_i810_vertex_t *vertex = data;
 943
 944         LOCK_TEST_WITH_RETURN(dev, file_priv);
 945
 946         DRM_DEBUG("idx %d used %d discard %d\n",
 947                   vertex->idx, vertex->used, vertex->discard);
 948
 949         if (vertex->idx < 0 || vertex->idx > dma->buf_count)
 950                 return -EINVAL;
 951
 952         i810_dma_dispatch_vertex(dev,
 953                                  dma->buflist[vertex->idx],
 954                                  vertex->discard, vertex->used);
 955
 956         atomic_add(vertex->used, &dev->counts[_DRM_STAT_SECONDARY]);
 957         atomic_inc(&dev->counts[_DRM_STAT_DMA]);
 958         sarea_priv->last_enqueue = dev_priv->counter - 1;
 959         sarea_priv->last_dispatch = (int)hw_status[5];
 960
 961         return 0;
 962 }
 963
 964 static int i810_clear_bufs(struct drm_device *dev, void *data,
 965                            struct drm_file *file_priv)
 966 {
 967         drm_i810_clear_t *clear = data;
 968
 969         LOCK_TEST_WITH_RETURN(dev, file_priv);
 970
 971         /* GH: Someone's doing nasty things... */
 972         if (!dev->dev_private) {
 973                 return -EINVAL;
 974         }
 975
 976         i810_dma_dispatch_clear(dev, clear->flags,
 977                                 clear->clear_color, clear->clear_depth);
 978         return 0;
 979 }
 980
 981 static int i810_swap_bufs(struct drm_device *dev, void *data,
 982                           struct drm_file *file_priv)
 983 {
 984         DRM_DEBUG("\n");
 985
 986         LOCK_TEST_WITH_RETURN(dev, file_priv);
 987
 988         i810_dma_dispatch_swap(dev);
 989         return 0;
 990 }
 991
 992 static int i810_getage(struct drm_device *dev, void *data,
 993                        struct drm_file *file_priv)
 994 {
 995         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
 996         u32 *hw_status = dev_priv->hw_status_page;
 997         drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
 998             dev_priv->sarea_priv;
 999
1000         sarea_priv->last_dispatch = (int)hw_status[5];
1001         return 0;
1002 }
1003
1004 static int i810_getbuf(struct drm_device *dev, void *data,
1005                        struct drm_file *file_priv)
1006 {
1007         int retcode = 0;
1008         drm_i810_dma_t *d = data;
1009         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1010         u32 *hw_status = dev_priv->hw_status_page;
1011         drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
1012             dev_priv->sarea_priv;
1013
1014         LOCK_TEST_WITH_RETURN(dev, file_priv);
1015
1016         d->granted = 0;
1017
1018         retcode = i810_dma_get_buffer(dev, d, file_priv);
1019
1020         DRM_DEBUG("i810_dma: %d returning %d, granted = %d\n",
1021                   task_pid_nr(current), retcode, d->granted);
1022
1023         sarea_priv->last_dispatch = (int)hw_status[5];
1024
1025         return retcode;
1026 }
1027
1028 static int i810_copybuf(struct drm_device *dev, void *data,
1029                         struct drm_file *file_priv)
1030 {
1031         /* Never copy - 2.4.x doesn't need it */
1032         return 0;
1033 }
1034
1035 static int i810_docopy(struct drm_device *dev, void *data,
1036                         struct drm_file *file_priv)
1037 {
1038         /* Never copy - 2.4.x doesn't need it */
1039         return 0;
1040 }
1041
1042 static void i810_dma_dispatch_mc(struct drm_device * dev, struct drm_buf * buf, int used,
1043                                  unsigned int last_render)
1044 {
1045         drm_i810_private_t *dev_priv = dev->dev_private;
1046         drm_i810_buf_priv_t *buf_priv = buf->dev_private;
1047         drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
1048         unsigned long address = (unsigned long)buf->bus_address;
1049         unsigned long start = address - dev->agp->base;
1050         int u;
1051         RING_LOCALS;
1052
1053         i810_kernel_lost_context(dev);
1054
1055         u = cmpxchg(buf_priv->in_use, I810_BUF_CLIENT, I810_BUF_HARDWARE);
1056         if (u != I810_BUF_CLIENT) {
1057                 DRM_DEBUG("MC found buffer that isn't mine!\n");
1058         }
1059
1060         if (used > 4 * 1024)
1061                 used = 0;
1062
1063         sarea_priv->dirty = 0x7f;
1064
1065         DRM_DEBUG("addr 0x%lx, used 0x%x\n", address, used);
1066
1067         dev_priv->counter++;
1068         DRM_DEBUG("dispatch counter : %ld\n", dev_priv->counter);
1069         DRM_DEBUG("start : %lx\n", start);
1070         DRM_DEBUG("used : %d\n", used);
1071         DRM_DEBUG("start + used - 4 : %ld\n", start + used - 4);
1072
1073         if (buf_priv->currently_mapped == I810_BUF_MAPPED) {
1074                 if (used & 4) {
1075                         *(u32 *) ((char *) buf_priv->virtual + used) = 0;
1076                         used += 4;
1077                 }
1078
1079                 i810_unmap_buffer(buf);
1080         }
1081         BEGIN_LP_RING(4);
1082         OUT_RING(CMD_OP_BATCH_BUFFER);
1083         OUT_RING(start | BB1_PROTECTED);
1084         OUT_RING(start + used - 4);
1085         OUT_RING(0);
1086         ADVANCE_LP_RING();
1087
1088         BEGIN_LP_RING(8);
1089         OUT_RING(CMD_STORE_DWORD_IDX);
1090         OUT_RING(buf_priv->my_use_idx);
1091         OUT_RING(I810_BUF_FREE);
1092         OUT_RING(0);
1093
1094         OUT_RING(CMD_STORE_DWORD_IDX);
1095         OUT_RING(16);
1096         OUT_RING(last_render);
1097         OUT_RING(0);
1098         ADVANCE_LP_RING();
1099 }
1100
1101 static int i810_dma_mc(struct drm_device *dev, void *data,
1102                        struct drm_file *file_priv)
1103 {
1104         struct drm_device_dma *dma = dev->dma;
1105         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1106         u32 *hw_status = dev_priv->hw_status_page;
1107         drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
1108             dev_priv->sarea_priv;
1109         drm_i810_mc_t *mc = data;
1110
1111         LOCK_TEST_WITH_RETURN(dev, file_priv);
1112
1113         if (mc->idx >= dma->buf_count || mc->idx < 0)
1114                 return -EINVAL;
1115
1116         i810_dma_dispatch_mc(dev, dma->buflist[mc->idx], mc->used,
1117                              mc->last_render);
1118
1119         atomic_add(mc->used, &dev->counts[_DRM_STAT_SECONDARY]);
1120         atomic_inc(&dev->counts[_DRM_STAT_DMA]);
1121         sarea_priv->last_enqueue = dev_priv->counter - 1;
1122         sarea_priv->last_dispatch = (int)hw_status[5];
1123
1124         return 0;
1125 }
1126
1127 static int i810_rstatus(struct drm_device *dev, void *data,
1128                         struct drm_file *file_priv)
1129 {
1130         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1131
1132         return (int)(((u32 *) (dev_priv->hw_status_page))[4]);
1133 }
1134
1135 static int i810_ov0_info(struct drm_device *dev, void *data,
1136                          struct drm_file *file_priv)
1137 {
1138         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1139         drm_i810_overlay_t *ov = data;
1140
1141         ov->offset = dev_priv->overlay_offset;
1142         ov->physical = dev_priv->overlay_physical;
1143
1144         return 0;
1145 }
1146
1147 static int i810_fstatus(struct drm_device *dev, void *data,
1148                         struct drm_file *file_priv)
1149 {
1150         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1151
1152         LOCK_TEST_WITH_RETURN(dev, file_priv);
1153         return I810_READ(0x30008);
1154 }
1155
1156 static int i810_ov0_flip(struct drm_device *dev, void *data,
1157                          struct drm_file *file_priv)
1158 {
1159         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1160
1161         LOCK_TEST_WITH_RETURN(dev, file_priv);
1162
1163         //Tell the overlay to update
1164         I810_WRITE(0x30000, dev_priv->overlay_physical | 0x80000000);
1165
1166         return 0;
1167 }
1168
1169 /* Not sure why this isn't set all the time:
1170  */
1171 static void i810_do_init_pageflip(struct drm_device * dev)
1172 {
1173         drm_i810_private_t *dev_priv = dev->dev_private;
1174
1175         DRM_DEBUG("\n");
1176         dev_priv->page_flipping = 1;
1177         dev_priv->current_page = 0;
1178         dev_priv->sarea_priv->pf_current_page = dev_priv->current_page;
1179 }
1180
1181 static int i810_do_cleanup_pageflip(struct drm_device * dev)
1182 {
1183         drm_i810_private_t *dev_priv = dev->dev_private;
1184
1185         DRM_DEBUG("\n");
1186         if (dev_priv->current_page != 0)
1187                 i810_dma_dispatch_flip(dev);
1188
1189         dev_priv->page_flipping = 0;
1190         return 0;
1191 }
1192
1193 static int i810_flip_bufs(struct drm_device *dev, void *data,
1194                           struct drm_file *file_priv)
1195 {
1196         drm_i810_private_t *dev_priv = dev->dev_private;
1197
1198         DRM_DEBUG("\n");
1199
1200         LOCK_TEST_WITH_RETURN(dev, file_priv);
1201
1202         if (!dev_priv->page_flipping)
1203                 i810_do_init_pageflip(dev);
1204
1205         i810_dma_dispatch_flip(dev);
1206         return 0;
1207 }
1208
1209 int i810_driver_load(struct drm_device *dev, unsigned long flags)
1210 {
1211         /* i810 has 4 more counters */
1212         dev->counters += 4;
1213         dev->types[6] = _DRM_STAT_IRQ;
1214         dev->types[7] = _DRM_STAT_PRIMARY;
1215         dev->types[8] = _DRM_STAT_SECONDARY;
1216         dev->types[9] = _DRM_STAT_DMA;
1217
1218         return 0;
1219 }
1220
1221 void i810_driver_lastclose(struct drm_device * dev)
1222 {
1223         i810_dma_cleanup(dev);
1224 }
1225
1226 void i810_driver_preclose(struct drm_device * dev, struct drm_file *file_priv)
1227 {
1228         if (dev->dev_private) {
1229                 drm_i810_private_t *dev_priv = dev->dev_private;
1230                 if (dev_priv->page_flipping) {
1231                         i810_do_cleanup_pageflip(dev);
1232                 }
1233         }
1234 }
1235
1236 void i810_driver_reclaim_buffers_locked(struct drm_device * dev,
1237                                         struct drm_file *file_priv)
1238 {
1239         i810_reclaim_buffers(dev, file_priv);
1240 }
1241
1242 int i810_driver_dma_quiescent(struct drm_device * dev)
1243 {
1244         i810_dma_quiescent(dev);
1245         return 0;
1246 }
1247
1248 struct drm_ioctl_desc i810_ioctls[] = {
1249         DRM_IOCTL_DEF(DRM_I810_INIT, i810_dma_init, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
1250         DRM_IOCTL_DEF(DRM_I810_VERTEX, i810_dma_vertex, DRM_AUTH),
1251         DRM_IOCTL_DEF(DRM_I810_CLEAR, i810_clear_bufs, DRM_AUTH),
1252         DRM_IOCTL_DEF(DRM_I810_FLUSH, i810_flush_ioctl, DRM_AUTH),
1253         DRM_IOCTL_DEF(DRM_I810_GETAGE, i810_getage, DRM_AUTH),
1254         DRM_IOCTL_DEF(DRM_I810_GETBUF, i810_getbuf, DRM_AUTH),
1255         DRM_IOCTL_DEF(DRM_I810_SWAP, i810_swap_bufs, DRM_AUTH),
1256         DRM_IOCTL_DEF(DRM_I810_COPY, i810_copybuf, DRM_AUTH),
1257         DRM_IOCTL_DEF(DRM_I810_DOCOPY, i810_docopy, DRM_AUTH),
1258         DRM_IOCTL_DEF(DRM_I810_OV0INFO, i810_ov0_info, DRM_AUTH),
1259         DRM_IOCTL_DEF(DRM_I810_FSTATUS, i810_fstatus, DRM_AUTH),
1260         DRM_IOCTL_DEF(DRM_I810_OV0FLIP, i810_ov0_flip, DRM_AUTH),
1261         DRM_IOCTL_DEF(DRM_I810_MC, i810_dma_mc, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
1262         DRM_IOCTL_DEF(DRM_I810_RSTATUS, i810_rstatus, DRM_AUTH),
1263         DRM_IOCTL_DEF(DRM_I810_FLIP, i810_flip_bufs, DRM_AUTH)
1264 };
1265
1266 int i810_max_ioctl = DRM_ARRAY_SIZE(i810_ioctls);
1267
1268 /**
1269  * Determine if the device really is AGP or not.
1270  *
1271  * All Intel graphics chipsets are treated as AGP, even if they are really
1272  * PCI-e.
1273  *
1274  * \param dev   The device to be tested.
1275  *
1276  * \returns
1277  * A value of 1 is always retured to indictate every i810 is AGP.
1278  */
1279 int i810_driver_device_is_agp(struct drm_device * dev)
1280 {
1281         return 1;
1282 }