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 [email protected]
   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 <[email protected]>
  28  *          Jeff Hartmann <[email protected]>
  29  *          Keith Whitwell <[email protected]>
  30  *
  31  */
  32
  33 #include <linux/delay.h>
  34 #include <linux/mman.h>
  35 #include <linux/pci.h>
  36
  37 #include <drm/drm_device.h>
  38 #include <drm/drm_drv.h>
  39 #include <drm/drm_file.h>
  40 #include <drm/drm_ioctl.h>
  41 #include <drm/drm_print.h>
  42 #include <drm/i810_drm.h>
  43
  44 #include "i810_drv.h"
  45
  46 #define I810_BUF_FREE           2
  47 #define I810_BUF_CLIENT         1
  48 #define I810_BUF_HARDWARE       0
  49
  50 #define I810_BUF_UNMAPPED 0
  51 #define I810_BUF_MAPPED   1
  52
  53 static struct drm_buf *i810_freelist_get(struct drm_device * dev)
  54 {
  55         struct drm_device_dma *dma = dev->dma;
  56         int i;
  57         int used;
  58
  59         /* Linear search might not be the best solution */
  60
  61         for (i = 0; i < dma->buf_count; i++) {
  62                 struct drm_buf *buf = dma->buflist[i];
  63                 drm_i810_buf_priv_t *buf_priv = buf->dev_private;
  64                 /* In use is already a pointer */
  65                 used = cmpxchg(buf_priv->in_use, I810_BUF_FREE,
  66                                I810_BUF_CLIENT);
  67                 if (used == I810_BUF_FREE)
  68                         return buf;
  69         }
  70         return NULL;
  71 }
  72
  73 /* This should only be called if the buffer is not sent to the hardware
  74  * yet, the hardware updates in use for us once its on the ring buffer.
  75  */
  76
  77 static int i810_freelist_put(struct drm_device *dev, struct drm_buf *buf)
  78 {
  79         drm_i810_buf_priv_t *buf_priv = buf->dev_private;
  80         int used;
  81
  82         /* In use is already a pointer */
  83         used = cmpxchg(buf_priv->in_use, I810_BUF_CLIENT, I810_BUF_FREE);
  84         if (used != I810_BUF_CLIENT) {
  85                 DRM_ERROR("Freeing buffer thats not in use : %d\n", buf->idx);
  86                 return -EINVAL;
  87         }
  88
  89         return 0;
  90 }
  91
  92 static int i810_mmap_buffers(struct file *filp, struct vm_area_struct *vma)
  93 {
  94         struct drm_file *priv = filp->private_data;
  95         struct drm_device *dev;
  96         drm_i810_private_t *dev_priv;
  97         struct drm_buf *buf;
  98         drm_i810_buf_priv_t *buf_priv;
  99
 100         dev = priv->minor->dev;
 101         dev_priv = dev->dev_private;
 102         buf = dev_priv->mmap_buffer;
 103         buf_priv = buf->dev_private;
 104
 105         vma->vm_flags |= VM_DONTCOPY;
 106
 107         buf_priv->currently_mapped = I810_BUF_MAPPED;
 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         .compat_ioctl = drm_compat_ioctl,
 122         .llseek = noop_llseek,
 123 };
 124
 125 static int i810_map_buffer(struct drm_buf *buf, struct drm_file *file_priv)
 126 {
 127         struct drm_device *dev = file_priv->minor->dev;
 128         drm_i810_buf_priv_t *buf_priv = buf->dev_private;
 129         drm_i810_private_t *dev_priv = dev->dev_private;
 130         const struct file_operations *old_fops;
 131         int retcode = 0;
 132
 133         if (buf_priv->currently_mapped == I810_BUF_MAPPED)
 134                 return -EINVAL;
 135
 136         /* This is all entirely broken */
 137         old_fops = file_priv->filp->f_op;
 138         file_priv->filp->f_op = &i810_buffer_fops;
 139         dev_priv->mmap_buffer = buf;
 140         buf_priv->virtual = (void *)vm_mmap(file_priv->filp, 0, buf->total,
 141                                             PROT_READ | PROT_WRITE,
 142                                             MAP_SHARED, buf->bus_address);
 143         dev_priv->mmap_buffer = NULL;
 144         file_priv->filp->f_op = old_fops;
 145         if (IS_ERR(buf_priv->virtual)) {
 146                 /* Real error */
 147                 DRM_ERROR("mmap error\n");
 148                 retcode = PTR_ERR(buf_priv->virtual);
 149                 buf_priv->virtual = NULL;
 150         }
 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         retcode = vm_munmap((unsigned long)buf_priv->virtual,
 164                             (size_t) buf->total);
 165
 166         buf_priv->currently_mapped = I810_BUF_UNMAPPED;
 167         buf_priv->virtual = NULL;
 168
 169         return retcode;
 170 }
 171
 172 static int i810_dma_get_buffer(struct drm_device *dev, drm_i810_dma_t *d,
 173                                struct drm_file *file_priv)
 174 {
 175         struct drm_buf *buf;
 176         drm_i810_buf_priv_t *buf_priv;
 177         int retcode = 0;
 178
 179         buf = i810_freelist_get(dev);
 180         if (!buf) {
 181                 retcode = -ENOMEM;
 182                 DRM_DEBUG("retcode=%d\n", retcode);
 183                 return retcode;
 184         }
 185
 186         retcode = i810_map_buffer(buf, file_priv);
 187         if (retcode) {
 188                 i810_freelist_put(dev, buf);
 189                 DRM_ERROR("mapbuf failed, retcode %d\n", retcode);
 190                 return retcode;
 191         }
 192         buf->file_priv = file_priv;
 193         buf_priv = buf->dev_private;
 194         d->granted = 1;
 195         d->request_idx = buf->idx;
 196         d->request_size = buf->total;
 197         d->virtual = buf_priv->virtual;
 198
 199         return retcode;
 200 }
 201
 202 static int i810_dma_cleanup(struct drm_device *dev)
 203 {
 204         struct drm_device_dma *dma = dev->dma;
 205
 206         /* Make sure interrupts are disabled here because the uninstall ioctl
 207          * may not have been called from userspace and after dev_private
 208          * is freed, it's too late.
 209          */
 210         if (drm_core_check_feature(dev, DRIVER_HAVE_IRQ) && dev->irq_enabled)
 211                 drm_legacy_irq_uninstall(dev);
 212
 213         if (dev->dev_private) {
 214                 int i;
 215                 drm_i810_private_t *dev_priv =
 216                     (drm_i810_private_t *) dev->dev_private;
 217
 218                 if (dev_priv->ring.virtual_start)
 219                         drm_legacy_ioremapfree(&dev_priv->ring.map, dev);
 220                 if (dev_priv->hw_status_page) {
 221                         dma_free_coherent(dev->dev, PAGE_SIZE,
 222                                           dev_priv->hw_status_page,
 223                                           dev_priv->dma_status_page);
 224                 }
 225                 kfree(dev->dev_private);
 226                 dev->dev_private = NULL;
 227
 228                 for (i = 0; i < dma->buf_count; i++) {
 229                         struct drm_buf *buf = dma->buflist[i];
 230                         drm_i810_buf_priv_t *buf_priv = buf->dev_private;
 231
 232                         if (buf_priv->kernel_virtual && buf->total)
 233                                 drm_legacy_ioremapfree(&buf_priv->map, dev);
 234                 }
 235         }
 236         return 0;
 237 }
 238
 239 static int i810_wait_ring(struct drm_device *dev, int n)
 240 {
 241         drm_i810_private_t *dev_priv = dev->dev_private;
 242         drm_i810_ring_buffer_t *ring = &(dev_priv->ring);
 243         int iters = 0;
 244         unsigned long end;
 245         unsigned int last_head = I810_READ(LP_RING + RING_HEAD) & HEAD_ADDR;
 246
 247         end = jiffies + (HZ * 3);
 248         while (ring->space < n) {
 249                 ring->head = I810_READ(LP_RING + RING_HEAD) & HEAD_ADDR;
 250                 ring->space = ring->head - (ring->tail + 8);
 251                 if (ring->space < 0)
 252                         ring->space += ring->Size;
 253
 254                 if (ring->head != last_head) {
 255                         end = jiffies + (HZ * 3);
 256                         last_head = ring->head;
 257                 }
 258
 259                 iters++;
 260                 if (time_before(end, jiffies)) {
 261                         DRM_ERROR("space: %d wanted %d\n", ring->space, n);
 262                         DRM_ERROR("lockup\n");
 263                         goto out_wait_ring;
 264                 }
 265                 udelay(1);
 266         }
 267
 268 out_wait_ring:
 269         return iters;
 270 }
 271
 272 static void i810_kernel_lost_context(struct drm_device *dev)
 273 {
 274         drm_i810_private_t *dev_priv = dev->dev_private;
 275         drm_i810_ring_buffer_t *ring = &(dev_priv->ring);
 276
 277         ring->head = I810_READ(LP_RING + RING_HEAD) & HEAD_ADDR;
 278         ring->tail = I810_READ(LP_RING + RING_TAIL);
 279         ring->space = ring->head - (ring->tail + 8);
 280         if (ring->space < 0)
 281                 ring->space += ring->Size;
 282 }
 283
 284 static int i810_freelist_init(struct drm_device *dev, drm_i810_private_t *dev_priv)
 285 {
 286         struct drm_device_dma *dma = dev->dma;
 287         int my_idx = 24;
 288         u32 *hw_status = (u32 *) (dev_priv->hw_status_page + my_idx);
 289         int i;
 290
 291         if (dma->buf_count > 1019) {
 292                 /* Not enough space in the status page for the freelist */
 293                 return -EINVAL;
 294         }
 295
 296         for (i = 0; i < dma->buf_count; i++) {
 297                 struct drm_buf *buf = dma->buflist[i];
 298                 drm_i810_buf_priv_t *buf_priv = buf->dev_private;
 299
 300                 buf_priv->in_use = hw_status++;
 301                 buf_priv->my_use_idx = my_idx;
 302                 my_idx += 4;
 303
 304                 *buf_priv->in_use = I810_BUF_FREE;
 305
 306                 buf_priv->map.offset = buf->bus_address;
 307                 buf_priv->map.size = buf->total;
 308                 buf_priv->map.type = _DRM_AGP;
 309                 buf_priv->map.flags = 0;
 310                 buf_priv->map.mtrr = 0;
 311
 312                 drm_legacy_ioremap(&buf_priv->map, dev);
 313                 buf_priv->kernel_virtual = buf_priv->map.handle;
 314
 315         }
 316         return 0;
 317 }
 318
 319 static int i810_dma_initialize(struct drm_device *dev,
 320                                drm_i810_private_t *dev_priv,
 321                                drm_i810_init_t *init)
 322 {
 323         struct drm_map_list *r_list;
 324         memset(dev_priv, 0, sizeof(drm_i810_private_t));
 325
 326         list_for_each_entry(r_list, &dev->maplist, head) {
 327                 if (r_list->map &&
 328                     r_list->map->type == _DRM_SHM &&
 329                     r_list->map->flags & _DRM_CONTAINS_LOCK) {
 330                         dev_priv->sarea_map = r_list->map;
 331                         break;
 332                 }
 333         }
 334         if (!dev_priv->sarea_map) {
 335                 dev->dev_private = (void *)dev_priv;
 336                 i810_dma_cleanup(dev);
 337                 DRM_ERROR("can not find sarea!\n");
 338                 return -EINVAL;
 339         }
 340         dev_priv->mmio_map = drm_legacy_findmap(dev, init->mmio_offset);
 341         if (!dev_priv->mmio_map) {
 342                 dev->dev_private = (void *)dev_priv;
 343                 i810_dma_cleanup(dev);
 344                 DRM_ERROR("can not find mmio map!\n");
 345                 return -EINVAL;
 346         }
 347         dev->agp_buffer_token = init->buffers_offset;
 348         dev->agp_buffer_map = drm_legacy_findmap(dev, init->buffers_offset);
 349         if (!dev->agp_buffer_map) {
 350                 dev->dev_private = (void *)dev_priv;
 351                 i810_dma_cleanup(dev);
 352                 DRM_ERROR("can not find dma buffer map!\n");
 353                 return -EINVAL;
 354         }
 355
 356         dev_priv->sarea_priv = (drm_i810_sarea_t *)
 357             ((u8 *) dev_priv->sarea_map->handle + init->sarea_priv_offset);
 358
 359         dev_priv->ring.Start = init->ring_start;
 360         dev_priv->ring.End = init->ring_end;
 361         dev_priv->ring.Size = init->ring_size;
 362
 363         dev_priv->ring.map.offset = dev->agp->base + init->ring_start;
 364         dev_priv->ring.map.size = init->ring_size;
 365         dev_priv->ring.map.type = _DRM_AGP;
 366         dev_priv->ring.map.flags = 0;
 367         dev_priv->ring.map.mtrr = 0;
 368
 369         drm_legacy_ioremap(&dev_priv->ring.map, dev);
 370
 371         if (dev_priv->ring.map.handle == NULL) {
 372                 dev->dev_private = (void *)dev_priv;
 373                 i810_dma_cleanup(dev);
 374                 DRM_ERROR("can not ioremap virtual address for"
 375                           " ring buffer\n");
 376                 return -ENOMEM;
 377         }
 378
 379         dev_priv->ring.virtual_start = dev_priv->ring.map.handle;
 380
 381         dev_priv->ring.tail_mask = dev_priv->ring.Size - 1;
 382
 383         dev_priv->w = init->w;
 384         dev_priv->h = init->h;
 385         dev_priv->pitch = init->pitch;
 386         dev_priv->back_offset = init->back_offset;
 387         dev_priv->depth_offset = init->depth_offset;
 388         dev_priv->front_offset = init->front_offset;
 389
 390         dev_priv->overlay_offset = init->overlay_offset;
 391         dev_priv->overlay_physical = init->overlay_physical;
 392
 393         dev_priv->front_di1 = init->front_offset | init->pitch_bits;
 394         dev_priv->back_di1 = init->back_offset | init->pitch_bits;
 395         dev_priv->zi1 = init->depth_offset | init->pitch_bits;
 396
 397         /* Program Hardware Status Page */
 398         dev_priv->hw_status_page =
 399                 dma_alloc_coherent(dev->dev, PAGE_SIZE,
 400                                    &dev_priv->dma_status_page, GFP_KERNEL);
 401         if (!dev_priv->hw_status_page) {
 402                 dev->dev_private = (void *)dev_priv;
 403                 i810_dma_cleanup(dev);
 404                 DRM_ERROR("Can not allocate hardware status page\n");
 405                 return -ENOMEM;
 406         }
 407         DRM_DEBUG("hw status page @ %p\n", dev_priv->hw_status_page);
 408
 409         I810_WRITE(0x02080, dev_priv->dma_status_page);
 410         DRM_DEBUG("Enabled hardware status page\n");
 411
 412         /* Now we need to init our freelist */
 413         if (i810_freelist_init(dev, dev_priv) != 0) {
 414                 dev->dev_private = (void *)dev_priv;
 415                 i810_dma_cleanup(dev);
 416                 DRM_ERROR("Not enough space in the status page for"
 417                           " the freelist\n");
 418                 return -ENOMEM;
 419         }
 420         dev->dev_private = (void *)dev_priv;
 421
 422         return 0;
 423 }
 424
 425 static int i810_dma_init(struct drm_device *dev, void *data,
 426                          struct drm_file *file_priv)
 427 {
 428         drm_i810_private_t *dev_priv;
 429         drm_i810_init_t *init = data;
 430         int retcode = 0;
 431
 432         switch (init->func) {
 433         case I810_INIT_DMA_1_4:
 434                 DRM_INFO("Using v1.4 init.\n");
 435                 dev_priv = kmalloc(sizeof(drm_i810_private_t), GFP_KERNEL);
 436                 if (dev_priv == NULL)
 437                         return -ENOMEM;
 438                 retcode = i810_dma_initialize(dev, dev_priv, init);
 439                 break;
 440
 441         case I810_CLEANUP_DMA:
 442                 DRM_INFO("DMA Cleanup\n");
 443                 retcode = i810_dma_cleanup(dev);
 444                 break;
 445         default:
 446                 return -EINVAL;
 447         }
 448
 449         return retcode;
 450 }
 451
 452 /* Most efficient way to verify state for the i810 is as it is
 453  * emitted.  Non-conformant state is silently dropped.
 454  *
 455  * Use 'volatile' & local var tmp to force the emitted values to be
 456  * identical to the verified ones.
 457  */
 458 static void i810EmitContextVerified(struct drm_device *dev,
 459                                     volatile unsigned int *code)
 460 {
 461         drm_i810_private_t *dev_priv = dev->dev_private;
 462         int i, j = 0;
 463         unsigned int tmp;
 464         RING_LOCALS;
 465
 466         BEGIN_LP_RING(I810_CTX_SETUP_SIZE);
 467
 468         OUT_RING(GFX_OP_COLOR_FACTOR);
 469         OUT_RING(code[I810_CTXREG_CF1]);
 470
 471         OUT_RING(GFX_OP_STIPPLE);
 472         OUT_RING(code[I810_CTXREG_ST1]);
 473
 474         for (i = 4; i < I810_CTX_SETUP_SIZE; i++) {
 475                 tmp = code[i];
 476
 477                 if ((tmp & (7 << 29)) == (3 << 29) &&
 478                     (tmp & (0x1f << 24)) < (0x1d << 24)) {
 479                         OUT_RING(tmp);
 480                         j++;
 481                 } else
 482                         printk("constext state dropped!!!\n");
 483         }
 484
 485         if (j & 1)
 486                 OUT_RING(0);
 487
 488         ADVANCE_LP_RING();
 489 }
 490
 491 static void i810EmitTexVerified(struct drm_device *dev, volatile unsigned int *code)
 492 {
 493         drm_i810_private_t *dev_priv = dev->dev_private;
 494         int i, j = 0;
 495         unsigned int tmp;
 496         RING_LOCALS;
 497
 498         BEGIN_LP_RING(I810_TEX_SETUP_SIZE);
 499
 500         OUT_RING(GFX_OP_MAP_INFO);
 501         OUT_RING(code[I810_TEXREG_MI1]);
 502         OUT_RING(code[I810_TEXREG_MI2]);
 503         OUT_RING(code[I810_TEXREG_MI3]);
 504
 505         for (i = 4; i < I810_TEX_SETUP_SIZE; i++) {
 506                 tmp = code[i];
 507
 508                 if ((tmp & (7 << 29)) == (3 << 29) &&
 509                     (tmp & (0x1f << 24)) < (0x1d << 24)) {
 510                         OUT_RING(tmp);
 511                         j++;
 512                 } else
 513                         printk("texture state dropped!!!\n");
 514         }
 515
 516         if (j & 1)
 517                 OUT_RING(0);
 518
 519         ADVANCE_LP_RING();
 520 }
 521
 522 /* Need to do some additional checking when setting the dest buffer.
 523  */
 524 static void i810EmitDestVerified(struct drm_device *dev,
 525                                  volatile unsigned int *code)
 526 {
 527         drm_i810_private_t *dev_priv = dev->dev_private;
 528         unsigned int tmp;
 529         RING_LOCALS;
 530
 531         BEGIN_LP_RING(I810_DEST_SETUP_SIZE + 2);
 532
 533         tmp = code[I810_DESTREG_DI1];
 534         if (tmp == dev_priv->front_di1 || tmp == dev_priv->back_di1) {
 535                 OUT_RING(CMD_OP_DESTBUFFER_INFO);
 536                 OUT_RING(tmp);
 537         } else
 538                 DRM_DEBUG("bad di1 %x (allow %x or %x)\n",
 539                           tmp, dev_priv->front_di1, dev_priv->back_di1);
 540
 541         /* invarient:
 542          */
 543         OUT_RING(CMD_OP_Z_BUFFER_INFO);
 544         OUT_RING(dev_priv->zi1);
 545
 546         OUT_RING(GFX_OP_DESTBUFFER_VARS);
 547         OUT_RING(code[I810_DESTREG_DV1]);
 548
 549         OUT_RING(GFX_OP_DRAWRECT_INFO);
 550         OUT_RING(code[I810_DESTREG_DR1]);
 551         OUT_RING(code[I810_DESTREG_DR2]);
 552         OUT_RING(code[I810_DESTREG_DR3]);
 553         OUT_RING(code[I810_DESTREG_DR4]);
 554         OUT_RING(0);
 555
 556         ADVANCE_LP_RING();
 557 }
 558
 559 static void i810EmitState(struct drm_device *dev)
 560 {
 561         drm_i810_private_t *dev_priv = dev->dev_private;
 562         drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
 563         unsigned int dirty = sarea_priv->dirty;
 564
 565         DRM_DEBUG("%x\n", dirty);
 566
 567         if (dirty & I810_UPLOAD_BUFFERS) {
 568                 i810EmitDestVerified(dev, sarea_priv->BufferState);
 569                 sarea_priv->dirty &= ~I810_UPLOAD_BUFFERS;
 570         }
 571
 572         if (dirty & I810_UPLOAD_CTX) {
 573                 i810EmitContextVerified(dev, sarea_priv->ContextState);
 574                 sarea_priv->dirty &= ~I810_UPLOAD_CTX;
 575         }
 576
 577         if (dirty & I810_UPLOAD_TEX0) {
 578                 i810EmitTexVerified(dev, sarea_priv->TexState[0]);
 579                 sarea_priv->dirty &= ~I810_UPLOAD_TEX0;
 580         }
 581
 582         if (dirty & I810_UPLOAD_TEX1) {
 583                 i810EmitTexVerified(dev, sarea_priv->TexState[1]);
 584                 sarea_priv->dirty &= ~I810_UPLOAD_TEX1;
 585         }
 586 }
 587
 588 /* need to verify
 589  */
 590 static void i810_dma_dispatch_clear(struct drm_device *dev, int flags,
 591                                     unsigned int clear_color,
 592                                     unsigned int clear_zval)
 593 {
 594         drm_i810_private_t *dev_priv = dev->dev_private;
 595         drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
 596         int nbox = sarea_priv->nbox;
 597         struct drm_clip_rect *pbox = sarea_priv->boxes;
 598         int pitch = dev_priv->pitch;
 599         int cpp = 2;
 600         int i;
 601         RING_LOCALS;
 602
 603         if (dev_priv->current_page == 1) {
 604                 unsigned int tmp = flags;
 605
 606                 flags &= ~(I810_FRONT | I810_BACK);
 607                 if (tmp & I810_FRONT)
 608                         flags |= I810_BACK;
 609                 if (tmp & I810_BACK)
 610                         flags |= I810_FRONT;
 611         }
 612
 613         i810_kernel_lost_context(dev);
 614
 615         if (nbox > I810_NR_SAREA_CLIPRECTS)
 616                 nbox = I810_NR_SAREA_CLIPRECTS;
 617
 618         for (i = 0; i < nbox; i++, pbox++) {
 619                 unsigned int x = pbox->x1;
 620                 unsigned int y = pbox->y1;
 621                 unsigned int width = (pbox->x2 - x) * cpp;
 622                 unsigned int height = pbox->y2 - y;
 623                 unsigned int start = y * pitch + x * cpp;
 624
 625                 if (pbox->x1 > pbox->x2 ||
 626                     pbox->y1 > pbox->y2 ||
 627                     pbox->x2 > dev_priv->w || pbox->y2 > dev_priv->h)
 628                         continue;
 629
 630                 if (flags & I810_FRONT) {
 631                         BEGIN_LP_RING(6);
 632                         OUT_RING(BR00_BITBLT_CLIENT | BR00_OP_COLOR_BLT | 0x3);
 633                         OUT_RING(BR13_SOLID_PATTERN | (0xF0 << 16) | pitch);
 634                         OUT_RING((height << 16) | width);
 635                         OUT_RING(start);
 636                         OUT_RING(clear_color);
 637                         OUT_RING(0);
 638                         ADVANCE_LP_RING();
 639                 }
 640
 641                 if (flags & I810_BACK) {
 642                         BEGIN_LP_RING(6);
 643                         OUT_RING(BR00_BITBLT_CLIENT | BR00_OP_COLOR_BLT | 0x3);
 644                         OUT_RING(BR13_SOLID_PATTERN | (0xF0 << 16) | pitch);
 645                         OUT_RING((height << 16) | width);
 646                         OUT_RING(dev_priv->back_offset + start);
 647                         OUT_RING(clear_color);
 648                         OUT_RING(0);
 649                         ADVANCE_LP_RING();
 650                 }
 651
 652                 if (flags & I810_DEPTH) {
 653                         BEGIN_LP_RING(6);
 654                         OUT_RING(BR00_BITBLT_CLIENT | BR00_OP_COLOR_BLT | 0x3);
 655                         OUT_RING(BR13_SOLID_PATTERN | (0xF0 << 16) | pitch);
 656                         OUT_RING((height << 16) | width);
 657                         OUT_RING(dev_priv->depth_offset + start);
 658                         OUT_RING(clear_zval);
 659                         OUT_RING(0);
 660                         ADVANCE_LP_RING();
 661                 }
 662         }
 663 }
 664
 665 static void i810_dma_dispatch_swap(struct drm_device *dev)
 666 {
 667         drm_i810_private_t *dev_priv = dev->dev_private;
 668         drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
 669         int nbox = sarea_priv->nbox;
 670         struct drm_clip_rect *pbox = sarea_priv->boxes;
 671         int pitch = dev_priv->pitch;
 672         int cpp = 2;
 673         int i;
 674         RING_LOCALS;
 675
 676         DRM_DEBUG("swapbuffers\n");
 677
 678         i810_kernel_lost_context(dev);
 679
 680         if (nbox > I810_NR_SAREA_CLIPRECTS)
 681                 nbox = I810_NR_SAREA_CLIPRECTS;
 682
 683         for (i = 0; i < nbox; i++, pbox++) {
 684                 unsigned int w = pbox->x2 - pbox->x1;
 685                 unsigned int h = pbox->y2 - pbox->y1;
 686                 unsigned int dst = pbox->x1 * cpp + pbox->y1 * pitch;
 687                 unsigned int start = dst;
 688
 689                 if (pbox->x1 > pbox->x2 ||
 690                     pbox->y1 > pbox->y2 ||
 691                     pbox->x2 > dev_priv->w || pbox->y2 > dev_priv->h)
 692                         continue;
 693
 694                 BEGIN_LP_RING(6);
 695                 OUT_RING(BR00_BITBLT_CLIENT | BR00_OP_SRC_COPY_BLT | 0x4);
 696                 OUT_RING(pitch | (0xCC << 16));
 697                 OUT_RING((h << 16) | (w * cpp));
 698                 if (dev_priv->current_page == 0)
 699                         OUT_RING(dev_priv->front_offset + start);
 700                 else
 701                         OUT_RING(dev_priv->back_offset + start);
 702                 OUT_RING(pitch);
 703                 if (dev_priv->current_page == 0)
 704                         OUT_RING(dev_priv->back_offset + start);
 705                 else
 706                         OUT_RING(dev_priv->front_offset + start);
 707                 ADVANCE_LP_RING();
 708         }
 709 }
 710
 711 static void i810_dma_dispatch_vertex(struct drm_device *dev,
 712                                      struct drm_buf *buf, int discard, int used)
 713 {
 714         drm_i810_private_t *dev_priv = dev->dev_private;
 715         drm_i810_buf_priv_t *buf_priv = buf->dev_private;
 716         drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
 717         struct drm_clip_rect *box = sarea_priv->boxes;
 718         int nbox = sarea_priv->nbox;
 719         unsigned long address = (unsigned long)buf->bus_address;
 720         unsigned long start = address - dev->agp->base;
 721         int i = 0;
 722         RING_LOCALS;
 723
 724         i810_kernel_lost_context(dev);
 725
 726         if (nbox > I810_NR_SAREA_CLIPRECTS)
 727                 nbox = I810_NR_SAREA_CLIPRECTS;
 728
 729         if (used < 0 || used > 4 * 1024)
 730                 used = 0;
 731
 732         if (sarea_priv->dirty)
 733                 i810EmitState(dev);
 734
 735         if (buf_priv->currently_mapped == I810_BUF_MAPPED) {
 736                 unsigned int prim = (sarea_priv->vertex_prim & PR_MASK);
 737
 738                 *(u32 *) buf_priv->kernel_virtual =
 739                     ((GFX_OP_PRIMITIVE | prim | ((used / 4) - 2)));
 740
 741                 if (used & 4) {
 742                         *(u32 *) ((char *) buf_priv->kernel_virtual + used) = 0;
 743                         used += 4;
 744                 }
 745
 746                 i810_unmap_buffer(buf);
 747         }
 748
 749         if (used) {
 750                 do {
 751                         if (i < nbox) {
 752                                 BEGIN_LP_RING(4);
 753                                 OUT_RING(GFX_OP_SCISSOR | SC_UPDATE_SCISSOR |
 754                                          SC_ENABLE);
 755                                 OUT_RING(GFX_OP_SCISSOR_INFO);
 756                                 OUT_RING(box[i].x1 | (box[i].y1 << 16));
 757                                 OUT_RING((box[i].x2 -
 758                                           1) | ((box[i].y2 - 1) << 16));
 759                                 ADVANCE_LP_RING();
 760                         }
 761
 762                         BEGIN_LP_RING(4);
 763                         OUT_RING(CMD_OP_BATCH_BUFFER);
 764                         OUT_RING(start | BB1_PROTECTED);
 765                         OUT_RING(start + used - 4);
 766                         OUT_RING(0);
 767                         ADVANCE_LP_RING();
 768
 769                 } while (++i < nbox);
 770         }
 771
 772         if (discard) {
 773                 dev_priv->counter++;
 774
 775                 (void)cmpxchg(buf_priv->in_use, I810_BUF_CLIENT,
 776                               I810_BUF_HARDWARE);
 777
 778                 BEGIN_LP_RING(8);
 779                 OUT_RING(CMD_STORE_DWORD_IDX);
 780                 OUT_RING(20);
 781                 OUT_RING(dev_priv->counter);
 782                 OUT_RING(CMD_STORE_DWORD_IDX);
 783                 OUT_RING(buf_priv->my_use_idx);
 784                 OUT_RING(I810_BUF_FREE);
 785                 OUT_RING(CMD_REPORT_HEAD);
 786                 OUT_RING(0);
 787                 ADVANCE_LP_RING();
 788         }
 789 }
 790
 791 static void i810_dma_dispatch_flip(struct drm_device *dev)
 792 {
 793         drm_i810_private_t *dev_priv = dev->dev_private;
 794         int pitch = dev_priv->pitch;
 795         RING_LOCALS;
 796
 797         DRM_DEBUG("page=%d pfCurrentPage=%d\n",
 798                   dev_priv->current_page,
 799                   dev_priv->sarea_priv->pf_current_page);
 800
 801         i810_kernel_lost_context(dev);
 802
 803         BEGIN_LP_RING(2);
 804         OUT_RING(INST_PARSER_CLIENT | INST_OP_FLUSH | INST_FLUSH_MAP_CACHE);
 805         OUT_RING(0);
 806         ADVANCE_LP_RING();
 807
 808         BEGIN_LP_RING(I810_DEST_SETUP_SIZE + 2);
 809         /* On i815 at least ASYNC is buggy */
 810         /* pitch<<5 is from 11.2.8 p158,
 811            its the pitch / 8 then left shifted 8,
 812            so (pitch >> 3) << 8 */
 813         OUT_RING(CMD_OP_FRONTBUFFER_INFO | (pitch << 5) /*| ASYNC_FLIP */ );
 814         if (dev_priv->current_page == 0) {
 815                 OUT_RING(dev_priv->back_offset);
 816                 dev_priv->current_page = 1;
 817         } else {
 818                 OUT_RING(dev_priv->front_offset);
 819                 dev_priv->current_page = 0;
 820         }
 821         OUT_RING(0);
 822         ADVANCE_LP_RING();
 823
 824         BEGIN_LP_RING(2);
 825         OUT_RING(CMD_OP_WAIT_FOR_EVENT | WAIT_FOR_PLANE_A_FLIP);
 826         OUT_RING(0);
 827         ADVANCE_LP_RING();
 828
 829         /* Increment the frame counter.  The client-side 3D driver must
 830          * throttle the framerate by waiting for this value before
 831          * performing the swapbuffer ioctl.
 832          */
 833         dev_priv->sarea_priv->pf_current_page = dev_priv->current_page;
 834
 835 }
 836
 837 static void i810_dma_quiescent(struct drm_device *dev)
 838 {
 839         drm_i810_private_t *dev_priv = dev->dev_private;
 840         RING_LOCALS;
 841
 842         i810_kernel_lost_context(dev);
 843
 844         BEGIN_LP_RING(4);
 845         OUT_RING(INST_PARSER_CLIENT | INST_OP_FLUSH | INST_FLUSH_MAP_CACHE);
 846         OUT_RING(CMD_REPORT_HEAD);
 847         OUT_RING(0);
 848         OUT_RING(0);
 849         ADVANCE_LP_RING();
 850
 851         i810_wait_ring(dev, dev_priv->ring.Size - 8);
 852 }
 853
 854 static void i810_flush_queue(struct drm_device *dev)
 855 {
 856         drm_i810_private_t *dev_priv = dev->dev_private;
 857         struct drm_device_dma *dma = dev->dma;
 858         int i;
 859         RING_LOCALS;
 860
 861         i810_kernel_lost_context(dev);
 862
 863         BEGIN_LP_RING(2);
 864         OUT_RING(CMD_REPORT_HEAD);
 865         OUT_RING(0);
 866         ADVANCE_LP_RING();
 867
 868         i810_wait_ring(dev, dev_priv->ring.Size - 8);
 869
 870         for (i = 0; i < dma->buf_count; i++) {
 871                 struct drm_buf *buf = dma->buflist[i];
 872                 drm_i810_buf_priv_t *buf_priv = buf->dev_private;
 873
 874                 int used = cmpxchg(buf_priv->in_use, I810_BUF_HARDWARE,
 875                                    I810_BUF_FREE);
 876
 877                 if (used == I810_BUF_HARDWARE)
 878                         DRM_DEBUG("reclaimed from HARDWARE\n");
 879                 if (used == I810_BUF_CLIENT)
 880                         DRM_DEBUG("still on client\n");
 881         }
 882
 883         return;
 884 }
 885
 886 /* Must be called with the lock held */
 887 void i810_driver_reclaim_buffers(struct drm_device *dev,
 888                                  struct drm_file *file_priv)
 889 {
 890         struct drm_device_dma *dma = dev->dma;
 891         int i;
 892
 893         if (!dma)
 894                 return;
 895         if (!dev->dev_private)
 896                 return;
 897         if (!dma->buflist)
 898                 return;
 899
 900         i810_flush_queue(dev);
 901
 902         for (i = 0; i < dma->buf_count; i++) {
 903                 struct drm_buf *buf = dma->buflist[i];
 904                 drm_i810_buf_priv_t *buf_priv = buf->dev_private;
 905
 906                 if (buf->file_priv == file_priv && buf_priv) {
 907                         int used = cmpxchg(buf_priv->in_use, I810_BUF_CLIENT,
 908                                            I810_BUF_FREE);
 909
 910                         if (used == I810_BUF_CLIENT)
 911                                 DRM_DEBUG("reclaimed from client\n");
 912                         if (buf_priv->currently_mapped == I810_BUF_MAPPED)
 913                                 buf_priv->currently_mapped = I810_BUF_UNMAPPED;
 914                 }
 915         }
 916 }
 917
 918 static int i810_flush_ioctl(struct drm_device *dev, void *data,
 919                             struct drm_file *file_priv)
 920 {
 921         LOCK_TEST_WITH_RETURN(dev, file_priv);
 922
 923         i810_flush_queue(dev);
 924         return 0;
 925 }
 926
 927 static int i810_dma_vertex(struct drm_device *dev, void *data,
 928                            struct drm_file *file_priv)
 929 {
 930         struct drm_device_dma *dma = dev->dma;
 931         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
 932         u32 *hw_status = dev_priv->hw_status_page;
 933         drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
 934             dev_priv->sarea_priv;
 935         drm_i810_vertex_t *vertex = data;
 936
 937         LOCK_TEST_WITH_RETURN(dev, file_priv);
 938
 939         DRM_DEBUG("idx %d used %d discard %d\n",
 940                   vertex->idx, vertex->used, vertex->discard);
 941
 942         if (vertex->idx < 0 || vertex->idx >= dma->buf_count)
 943                 return -EINVAL;
 944
 945         i810_dma_dispatch_vertex(dev,
 946                                  dma->buflist[vertex->idx],
 947                                  vertex->discard, vertex->used);
 948
 949         sarea_priv->last_enqueue = dev_priv->counter - 1;
 950         sarea_priv->last_dispatch = (int)hw_status[5];
 951
 952         return 0;
 953 }
 954
 955 static int i810_clear_bufs(struct drm_device *dev, void *data,
 956                            struct drm_file *file_priv)
 957 {
 958         drm_i810_clear_t *clear = data;
 959
 960         LOCK_TEST_WITH_RETURN(dev, file_priv);
 961
 962         /* GH: Someone's doing nasty things... */
 963         if (!dev->dev_private)
 964                 return -EINVAL;
 965
 966         i810_dma_dispatch_clear(dev, clear->flags,
 967                                 clear->clear_color, clear->clear_depth);
 968         return 0;
 969 }
 970
 971 static int i810_swap_bufs(struct drm_device *dev, void *data,
 972                           struct drm_file *file_priv)
 973 {
 974         DRM_DEBUG("\n");
 975
 976         LOCK_TEST_WITH_RETURN(dev, file_priv);
 977
 978         i810_dma_dispatch_swap(dev);
 979         return 0;
 980 }
 981
 982 static int i810_getage(struct drm_device *dev, void *data,
 983                        struct drm_file *file_priv)
 984 {
 985         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
 986         u32 *hw_status = dev_priv->hw_status_page;
 987         drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
 988             dev_priv->sarea_priv;
 989
 990         sarea_priv->last_dispatch = (int)hw_status[5];
 991         return 0;
 992 }
 993
 994 static int i810_getbuf(struct drm_device *dev, void *data,
 995                        struct drm_file *file_priv)
 996 {
 997         int retcode = 0;
 998         drm_i810_dma_t *d = data;
 999         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1000         u32 *hw_status = dev_priv->hw_status_page;
1001         drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
1002             dev_priv->sarea_priv;
1003
1004         LOCK_TEST_WITH_RETURN(dev, file_priv);
1005
1006         d->granted = 0;
1007
1008         retcode = i810_dma_get_buffer(dev, d, file_priv);
1009
1010         DRM_DEBUG("i810_dma: %d returning %d, granted = %d\n",
1011                   task_pid_nr(current), retcode, d->granted);
1012
1013         sarea_priv->last_dispatch = (int)hw_status[5];
1014
1015         return retcode;
1016 }
1017
1018 static int i810_copybuf(struct drm_device *dev, void *data,
1019                         struct drm_file *file_priv)
1020 {
1021         /* Never copy - 2.4.x doesn't need it */
1022         return 0;
1023 }
1024
1025 static int i810_docopy(struct drm_device *dev, void *data,
1026                         struct drm_file *file_priv)
1027 {
1028         /* Never copy - 2.4.x doesn't need it */
1029         return 0;
1030 }
1031
1032 static void i810_dma_dispatch_mc(struct drm_device *dev, struct drm_buf *buf, int used,
1033                                  unsigned int last_render)
1034 {
1035         drm_i810_private_t *dev_priv = dev->dev_private;
1036         drm_i810_buf_priv_t *buf_priv = buf->dev_private;
1037         drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
1038         unsigned long address = (unsigned long)buf->bus_address;
1039         unsigned long start = address - dev->agp->base;
1040         int u;
1041         RING_LOCALS;
1042
1043         i810_kernel_lost_context(dev);
1044
1045         u = cmpxchg(buf_priv->in_use, I810_BUF_CLIENT, I810_BUF_HARDWARE);
1046         if (u != I810_BUF_CLIENT)
1047                 DRM_DEBUG("MC found buffer that isn't mine!\n");
1048
1049         if (used < 0 || used > 4 * 1024)
1050                 used = 0;
1051
1052         sarea_priv->dirty = 0x7f;
1053
1054         DRM_DEBUG("addr 0x%lx, used 0x%x\n", address, used);
1055
1056         dev_priv->counter++;
1057         DRM_DEBUG("dispatch counter : %ld\n", dev_priv->counter);
1058         DRM_DEBUG("start : %lx\n", start);
1059         DRM_DEBUG("used : %d\n", used);
1060         DRM_DEBUG("start + used - 4 : %ld\n", start + used - 4);
1061
1062         if (buf_priv->currently_mapped == I810_BUF_MAPPED) {
1063                 if (used & 4) {
1064                         *(u32 *) ((char *) buf_priv->virtual + used) = 0;
1065                         used += 4;
1066                 }
1067
1068                 i810_unmap_buffer(buf);
1069         }
1070         BEGIN_LP_RING(4);
1071         OUT_RING(CMD_OP_BATCH_BUFFER);
1072         OUT_RING(start | BB1_PROTECTED);
1073         OUT_RING(start + used - 4);
1074         OUT_RING(0);
1075         ADVANCE_LP_RING();
1076
1077         BEGIN_LP_RING(8);
1078         OUT_RING(CMD_STORE_DWORD_IDX);
1079         OUT_RING(buf_priv->my_use_idx);
1080         OUT_RING(I810_BUF_FREE);
1081         OUT_RING(0);
1082
1083         OUT_RING(CMD_STORE_DWORD_IDX);
1084         OUT_RING(16);
1085         OUT_RING(last_render);
1086         OUT_RING(0);
1087         ADVANCE_LP_RING();
1088 }
1089
1090 static int i810_dma_mc(struct drm_device *dev, void *data,
1091                        struct drm_file *file_priv)
1092 {
1093         struct drm_device_dma *dma = dev->dma;
1094         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1095         u32 *hw_status = dev_priv->hw_status_page;
1096         drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
1097             dev_priv->sarea_priv;
1098         drm_i810_mc_t *mc = data;
1099
1100         LOCK_TEST_WITH_RETURN(dev, file_priv);
1101
1102         if (mc->idx >= dma->buf_count || mc->idx < 0)
1103                 return -EINVAL;
1104
1105         i810_dma_dispatch_mc(dev, dma->buflist[mc->idx], mc->used,
1106                              mc->last_render);
1107
1108         sarea_priv->last_enqueue = dev_priv->counter - 1;
1109         sarea_priv->last_dispatch = (int)hw_status[5];
1110
1111         return 0;
1112 }
1113
1114 static int i810_rstatus(struct drm_device *dev, void *data,
1115                         struct drm_file *file_priv)
1116 {
1117         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1118
1119         return (int)(((u32 *) (dev_priv->hw_status_page))[4]);
1120 }
1121
1122 static int i810_ov0_info(struct drm_device *dev, void *data,
1123                          struct drm_file *file_priv)
1124 {
1125         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1126         drm_i810_overlay_t *ov = data;
1127
1128         ov->offset = dev_priv->overlay_offset;
1129         ov->physical = dev_priv->overlay_physical;
1130
1131         return 0;
1132 }
1133
1134 static int i810_fstatus(struct drm_device *dev, void *data,
1135                         struct drm_file *file_priv)
1136 {
1137         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1138
1139         LOCK_TEST_WITH_RETURN(dev, file_priv);
1140         return I810_READ(0x30008);
1141 }
1142
1143 static int i810_ov0_flip(struct drm_device *dev, void *data,
1144                          struct drm_file *file_priv)
1145 {
1146         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1147
1148         LOCK_TEST_WITH_RETURN(dev, file_priv);
1149
1150         /* Tell the overlay to update */
1151         I810_WRITE(0x30000, dev_priv->overlay_physical | 0x80000000);
1152
1153         return 0;
1154 }
1155
1156 /* Not sure why this isn't set all the time:
1157  */
1158 static void i810_do_init_pageflip(struct drm_device *dev)
1159 {
1160         drm_i810_private_t *dev_priv = dev->dev_private;
1161
1162         DRM_DEBUG("\n");
1163         dev_priv->page_flipping = 1;
1164         dev_priv->current_page = 0;
1165         dev_priv->sarea_priv->pf_current_page = dev_priv->current_page;
1166 }
1167
1168 static int i810_do_cleanup_pageflip(struct drm_device *dev)
1169 {
1170         drm_i810_private_t *dev_priv = dev->dev_private;
1171
1172         DRM_DEBUG("\n");
1173         if (dev_priv->current_page != 0)
1174                 i810_dma_dispatch_flip(dev);
1175
1176         dev_priv->page_flipping = 0;
1177         return 0;
1178 }
1179
1180 static int i810_flip_bufs(struct drm_device *dev, void *data,
1181                           struct drm_file *file_priv)
1182 {
1183         drm_i810_private_t *dev_priv = dev->dev_private;
1184
1185         DRM_DEBUG("\n");
1186
1187         LOCK_TEST_WITH_RETURN(dev, file_priv);
1188
1189         if (!dev_priv->page_flipping)
1190                 i810_do_init_pageflip(dev);
1191
1192         i810_dma_dispatch_flip(dev);
1193         return 0;
1194 }
1195
1196 int i810_driver_load(struct drm_device *dev, unsigned long flags)
1197 {
1198         struct pci_dev *pdev = to_pci_dev(dev->dev);
1199
1200         dev->agp = drm_legacy_agp_init(dev);
1201         if (dev->agp) {
1202                 dev->agp->agp_mtrr = arch_phys_wc_add(
1203                         dev->agp->agp_info.aper_base,
1204                         dev->agp->agp_info.aper_size *
1205                         1024 * 1024);
1206         }
1207
1208         /* Our userspace depends upon the agp mapping support. */
1209         if (!dev->agp)
1210                 return -EINVAL;
1211
1212         pci_set_master(pdev);
1213
1214         return 0;
1215 }
1216
1217 void i810_driver_lastclose(struct drm_device *dev)
1218 {
1219         i810_dma_cleanup(dev);
1220 }
1221
1222 void i810_driver_preclose(struct drm_device *dev, struct drm_file *file_priv)
1223 {
1224         if (dev->dev_private) {
1225                 drm_i810_private_t *dev_priv = dev->dev_private;
1226                 if (dev_priv->page_flipping)
1227                         i810_do_cleanup_pageflip(dev);
1228         }
1229
1230         if (file_priv->master && file_priv->master->lock.hw_lock) {
1231                 drm_legacy_idlelock_take(&file_priv->master->lock);
1232                 i810_driver_reclaim_buffers(dev, file_priv);
1233                 drm_legacy_idlelock_release(&file_priv->master->lock);
1234         } else {
1235                 /* master disappeared, clean up stuff anyway and hope nothing
1236                  * goes wrong */
1237                 i810_driver_reclaim_buffers(dev, file_priv);
1238         }
1239
1240 }
1241
1242 int i810_driver_dma_quiescent(struct drm_device *dev)
1243 {
1244         i810_dma_quiescent(dev);
1245         return 0;
1246 }
1247
1248 const struct drm_ioctl_desc i810_ioctls[] = {
1249         DRM_IOCTL_DEF_DRV(I810_INIT, i810_dma_init, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY|DRM_UNLOCKED),
1250         DRM_IOCTL_DEF_DRV(I810_VERTEX, i810_dma_vertex, DRM_AUTH|DRM_UNLOCKED),
1251         DRM_IOCTL_DEF_DRV(I810_CLEAR, i810_clear_bufs, DRM_AUTH|DRM_UNLOCKED),
1252         DRM_IOCTL_DEF_DRV(I810_FLUSH, i810_flush_ioctl, DRM_AUTH|DRM_UNLOCKED),
1253         DRM_IOCTL_DEF_DRV(I810_GETAGE, i810_getage, DRM_AUTH|DRM_UNLOCKED),
1254         DRM_IOCTL_DEF_DRV(I810_GETBUF, i810_getbuf, DRM_AUTH|DRM_UNLOCKED),
1255         DRM_IOCTL_DEF_DRV(I810_SWAP, i810_swap_bufs, DRM_AUTH|DRM_UNLOCKED),
1256         DRM_IOCTL_DEF_DRV(I810_COPY, i810_copybuf, DRM_AUTH|DRM_UNLOCKED),
1257         DRM_IOCTL_DEF_DRV(I810_DOCOPY, i810_docopy, DRM_AUTH|DRM_UNLOCKED),
1258         DRM_IOCTL_DEF_DRV(I810_OV0INFO, i810_ov0_info, DRM_AUTH|DRM_UNLOCKED),
1259         DRM_IOCTL_DEF_DRV(I810_FSTATUS, i810_fstatus, DRM_AUTH|DRM_UNLOCKED),
1260         DRM_IOCTL_DEF_DRV(I810_OV0FLIP, i810_ov0_flip, DRM_AUTH|DRM_UNLOCKED),
1261         DRM_IOCTL_DEF_DRV(I810_MC, i810_dma_mc, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY|DRM_UNLOCKED),
1262         DRM_IOCTL_DEF_DRV(I810_RSTATUS, i810_rstatus, DRM_AUTH|DRM_UNLOCKED),
1263         DRM_IOCTL_DEF_DRV(I810_FLIP, i810_flip_bufs, DRM_AUTH|DRM_UNLOCKED),
1264 };
1265
1266 int i810_max_ioctl = ARRAY_SIZE(i810_ioctls);