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_irq.h>
  42 #include <drm/drm_print.h>
  43 #include <drm/i810_drm.h>
  44
  45 #include "i810_drv.h"
  46
  47 #define I810_BUF_FREE           2
  48 #define I810_BUF_CLIENT         1
  49 #define I810_BUF_HARDWARE       0
  50
  51 #define I810_BUF_UNMAPPED 0
  52 #define I810_BUF_MAPPED   1
  53
  54 static struct drm_buf *i810_freelist_get(struct drm_device * dev)
  55 {
  56         struct drm_device_dma *dma = dev->dma;
  57         int i;
  58         int used;
  59
  60         /* Linear search might not be the best solution */
  61
  62         for (i = 0; i < dma->buf_count; i++) {
  63                 struct drm_buf *buf = dma->buflist[i];
  64                 drm_i810_buf_priv_t *buf_priv = buf->dev_private;
  65                 /* In use is already a pointer */
  66                 used = cmpxchg(buf_priv->in_use, I810_BUF_FREE,
  67                                I810_BUF_CLIENT);
  68                 if (used == I810_BUF_FREE)
  69                         return buf;
  70         }
  71         return NULL;
  72 }
  73
  74 /* This should only be called if the buffer is not sent to the hardware
  75  * yet, the hardware updates in use for us once its on the ring buffer.
  76  */
  77
  78 static int i810_freelist_put(struct drm_device *dev, struct drm_buf *buf)
  79 {
  80         drm_i810_buf_priv_t *buf_priv = buf->dev_private;
  81         int used;
  82
  83         /* In use is already a pointer */
  84         used = cmpxchg(buf_priv->in_use, I810_BUF_CLIENT, I810_BUF_FREE);
  85         if (used != I810_BUF_CLIENT) {
  86                 DRM_ERROR("Freeing buffer thats not in use : %d\n", buf->idx);
  87                 return -EINVAL;
  88         }
  89
  90         return 0;
  91 }
  92
  93 static int i810_mmap_buffers(struct file *filp, struct vm_area_struct *vma)
  94 {
  95         struct drm_file *priv = filp->private_data;
  96         struct drm_device *dev;
  97         drm_i810_private_t *dev_priv;
  98         struct drm_buf *buf;
  99         drm_i810_buf_priv_t *buf_priv;
 100
 101         dev = priv->minor->dev;
 102         dev_priv = dev->dev_private;
 103         buf = dev_priv->mmap_buffer;
 104         buf_priv = buf->dev_private;
 105
 106         vma->vm_flags |= VM_DONTCOPY;
 107
 108         buf_priv->currently_mapped = I810_BUF_MAPPED;
 109
 110         if (io_remap_pfn_range(vma, vma->vm_start,
 111                                vma->vm_pgoff,
 112                                vma->vm_end - vma->vm_start, vma->vm_page_prot))
 113                 return -EAGAIN;
 114         return 0;
 115 }
 116
 117 static const struct file_operations i810_buffer_fops = {
 118         .open = drm_open,
 119         .release = drm_release,
 120         .unlocked_ioctl = drm_ioctl,
 121         .mmap = i810_mmap_buffers,
 122         .compat_ioctl = drm_compat_ioctl,
 123         .llseek = noop_llseek,
 124 };
 125
 126 static int i810_map_buffer(struct drm_buf *buf, struct drm_file *file_priv)
 127 {
 128         struct drm_device *dev = file_priv->minor->dev;
 129         drm_i810_buf_priv_t *buf_priv = buf->dev_private;
 130         drm_i810_private_t *dev_priv = dev->dev_private;
 131         const struct file_operations *old_fops;
 132         int retcode = 0;
 133
 134         if (buf_priv->currently_mapped == I810_BUF_MAPPED)
 135                 return -EINVAL;
 136
 137         /* This is all entirely broken */
 138         old_fops = file_priv->filp->f_op;
 139         file_priv->filp->f_op = &i810_buffer_fops;
 140         dev_priv->mmap_buffer = buf;
 141         buf_priv->virtual = (void *)vm_mmap(file_priv->filp, 0, buf->total,
 142                                             PROT_READ | PROT_WRITE,
 143                                             MAP_SHARED, buf->bus_address);
 144         dev_priv->mmap_buffer = NULL;
 145         file_priv->filp->f_op = old_fops;
 146         if (IS_ERR(buf_priv->virtual)) {
 147                 /* Real error */
 148                 DRM_ERROR("mmap error\n");
 149                 retcode = PTR_ERR(buf_priv->virtual);
 150                 buf_priv->virtual = NULL;
 151         }
 152
 153         return retcode;
 154 }
 155
 156 static int i810_unmap_buffer(struct drm_buf *buf)
 157 {
 158         drm_i810_buf_priv_t *buf_priv = buf->dev_private;
 159         int retcode = 0;
 160
 161         if (buf_priv->currently_mapped != I810_BUF_MAPPED)
 162                 return -EINVAL;
 163
 164         retcode = vm_munmap((unsigned long)buf_priv->virtual,
 165                             (size_t) buf->total);
 166
 167         buf_priv->currently_mapped = I810_BUF_UNMAPPED;
 168         buf_priv->virtual = NULL;
 169
 170         return retcode;
 171 }
 172
 173 static int i810_dma_get_buffer(struct drm_device *dev, drm_i810_dma_t *d,
 174                                struct drm_file *file_priv)
 175 {
 176         struct drm_buf *buf;
 177         drm_i810_buf_priv_t *buf_priv;
 178         int retcode = 0;
 179
 180         buf = i810_freelist_get(dev);
 181         if (!buf) {
 182                 retcode = -ENOMEM;
 183                 DRM_DEBUG("retcode=%d\n", retcode);
 184                 return retcode;
 185         }
 186
 187         retcode = i810_map_buffer(buf, file_priv);
 188         if (retcode) {
 189                 i810_freelist_put(dev, buf);
 190                 DRM_ERROR("mapbuf failed, retcode %d\n", retcode);
 191                 return retcode;
 192         }
 193         buf->file_priv = file_priv;
 194         buf_priv = buf->dev_private;
 195         d->granted = 1;
 196         d->request_idx = buf->idx;
 197         d->request_size = buf->total;
 198         d->virtual = buf_priv->virtual;
 199
 200         return retcode;
 201 }
 202
 203 static int i810_dma_cleanup(struct drm_device *dev)
 204 {
 205         struct drm_device_dma *dma = dev->dma;
 206
 207         /* Make sure interrupts are disabled here because the uninstall ioctl
 208          * may not have been called from userspace and after dev_private
 209          * is freed, it's too late.
 210          */
 211         if (drm_core_check_feature(dev, DRIVER_HAVE_IRQ) && dev->irq_enabled)
 212                 drm_irq_uninstall(dev);
 213
 214         if (dev->dev_private) {
 215                 int i;
 216                 drm_i810_private_t *dev_priv =
 217                     (drm_i810_private_t *) dev->dev_private;
 218
 219                 if (dev_priv->ring.virtual_start)
 220                         drm_legacy_ioremapfree(&dev_priv->ring.map, dev);
 221                 if (dev_priv->hw_status_page) {
 222                         dma_free_coherent(dev->dev, PAGE_SIZE,
 223                                           dev_priv->hw_status_page,
 224                                           dev_priv->dma_status_page);
 225                 }
 226                 kfree(dev->dev_private);
 227                 dev->dev_private = NULL;
 228
 229                 for (i = 0; i < dma->buf_count; i++) {
 230                         struct drm_buf *buf = dma->buflist[i];
 231                         drm_i810_buf_priv_t *buf_priv = buf->dev_private;
 232
 233                         if (buf_priv->kernel_virtual && buf->total)
 234                                 drm_legacy_ioremapfree(&buf_priv->map, dev);
 235                 }
 236         }
 237         return 0;
 238 }
 239
 240 static int i810_wait_ring(struct drm_device *dev, int n)
 241 {
 242         drm_i810_private_t *dev_priv = dev->dev_private;
 243         drm_i810_ring_buffer_t *ring = &(dev_priv->ring);
 244         int iters = 0;
 245         unsigned long end;
 246         unsigned int last_head = I810_READ(LP_RING + RING_HEAD) & HEAD_ADDR;
 247
 248         end = jiffies + (HZ * 3);
 249         while (ring->space < n) {
 250                 ring->head = I810_READ(LP_RING + RING_HEAD) & HEAD_ADDR;
 251                 ring->space = ring->head - (ring->tail + 8);
 252                 if (ring->space < 0)
 253                         ring->space += ring->Size;
 254
 255                 if (ring->head != last_head) {
 256                         end = jiffies + (HZ * 3);
 257                         last_head = ring->head;
 258                 }
 259
 260                 iters++;
 261                 if (time_before(end, jiffies)) {
 262                         DRM_ERROR("space: %d wanted %d\n", ring->space, n);
 263                         DRM_ERROR("lockup\n");
 264                         goto out_wait_ring;
 265                 }
 266                 udelay(1);
 267         }
 268
 269 out_wait_ring:
 270         return iters;
 271 }
 272
 273 static void i810_kernel_lost_context(struct drm_device *dev)
 274 {
 275         drm_i810_private_t *dev_priv = dev->dev_private;
 276         drm_i810_ring_buffer_t *ring = &(dev_priv->ring);
 277
 278         ring->head = I810_READ(LP_RING + RING_HEAD) & HEAD_ADDR;
 279         ring->tail = I810_READ(LP_RING + RING_TAIL);
 280         ring->space = ring->head - (ring->tail + 8);
 281         if (ring->space < 0)
 282                 ring->space += ring->Size;
 283 }
 284
 285 static int i810_freelist_init(struct drm_device *dev, drm_i810_private_t *dev_priv)
 286 {
 287         struct drm_device_dma *dma = dev->dma;
 288         int my_idx = 24;
 289         u32 *hw_status = (u32 *) (dev_priv->hw_status_page + my_idx);
 290         int i;
 291
 292         if (dma->buf_count > 1019) {
 293                 /* Not enough space in the status page for the freelist */
 294                 return -EINVAL;
 295         }
 296
 297         for (i = 0; i < dma->buf_count; i++) {
 298                 struct drm_buf *buf = dma->buflist[i];
 299                 drm_i810_buf_priv_t *buf_priv = buf->dev_private;
 300
 301                 buf_priv->in_use = hw_status++;
 302                 buf_priv->my_use_idx = my_idx;
 303                 my_idx += 4;
 304
 305                 *buf_priv->in_use = I810_BUF_FREE;
 306
 307                 buf_priv->map.offset = buf->bus_address;
 308                 buf_priv->map.size = buf->total;
 309                 buf_priv->map.type = _DRM_AGP;
 310                 buf_priv->map.flags = 0;
 311                 buf_priv->map.mtrr = 0;
 312
 313                 drm_legacy_ioremap(&buf_priv->map, dev);
 314                 buf_priv->kernel_virtual = buf_priv->map.handle;
 315
 316         }
 317         return 0;
 318 }
 319
 320 static int i810_dma_initialize(struct drm_device *dev,
 321                                drm_i810_private_t *dev_priv,
 322                                drm_i810_init_t *init)
 323 {
 324         struct drm_map_list *r_list;
 325         memset(dev_priv, 0, sizeof(drm_i810_private_t));
 326
 327         list_for_each_entry(r_list, &dev->maplist, head) {
 328                 if (r_list->map &&
 329                     r_list->map->type == _DRM_SHM &&
 330                     r_list->map->flags & _DRM_CONTAINS_LOCK) {
 331                         dev_priv->sarea_map = r_list->map;
 332                         break;
 333                 }
 334         }
 335         if (!dev_priv->sarea_map) {
 336                 dev->dev_private = (void *)dev_priv;
 337                 i810_dma_cleanup(dev);
 338                 DRM_ERROR("can not find sarea!\n");
 339                 return -EINVAL;
 340         }
 341         dev_priv->mmio_map = drm_legacy_findmap(dev, init->mmio_offset);
 342         if (!dev_priv->mmio_map) {
 343                 dev->dev_private = (void *)dev_priv;
 344                 i810_dma_cleanup(dev);
 345                 DRM_ERROR("can not find mmio map!\n");
 346                 return -EINVAL;
 347         }
 348         dev->agp_buffer_token = init->buffers_offset;
 349         dev->agp_buffer_map = drm_legacy_findmap(dev, init->buffers_offset);
 350         if (!dev->agp_buffer_map) {
 351                 dev->dev_private = (void *)dev_priv;
 352                 i810_dma_cleanup(dev);
 353                 DRM_ERROR("can not find dma buffer map!\n");
 354                 return -EINVAL;
 355         }
 356
 357         dev_priv->sarea_priv = (drm_i810_sarea_t *)
 358             ((u8 *) dev_priv->sarea_map->handle + init->sarea_priv_offset);
 359
 360         dev_priv->ring.Start = init->ring_start;
 361         dev_priv->ring.End = init->ring_end;
 362         dev_priv->ring.Size = init->ring_size;
 363
 364         dev_priv->ring.map.offset = dev->agp->base + init->ring_start;
 365         dev_priv->ring.map.size = init->ring_size;
 366         dev_priv->ring.map.type = _DRM_AGP;
 367         dev_priv->ring.map.flags = 0;
 368         dev_priv->ring.map.mtrr = 0;
 369
 370         drm_legacy_ioremap(&dev_priv->ring.map, dev);
 371
 372         if (dev_priv->ring.map.handle == NULL) {
 373                 dev->dev_private = (void *)dev_priv;
 374                 i810_dma_cleanup(dev);
 375                 DRM_ERROR("can not ioremap virtual address for"
 376                           " ring buffer\n");
 377                 return -ENOMEM;
 378         }
 379
 380         dev_priv->ring.virtual_start = dev_priv->ring.map.handle;
 381
 382         dev_priv->ring.tail_mask = dev_priv->ring.Size - 1;
 383
 384         dev_priv->w = init->w;
 385         dev_priv->h = init->h;
 386         dev_priv->pitch = init->pitch;
 387         dev_priv->back_offset = init->back_offset;
 388         dev_priv->depth_offset = init->depth_offset;
 389         dev_priv->front_offset = init->front_offset;
 390
 391         dev_priv->overlay_offset = init->overlay_offset;
 392         dev_priv->overlay_physical = init->overlay_physical;
 393
 394         dev_priv->front_di1 = init->front_offset | init->pitch_bits;
 395         dev_priv->back_di1 = init->back_offset | init->pitch_bits;
 396         dev_priv->zi1 = init->depth_offset | init->pitch_bits;
 397
 398         /* Program Hardware Status Page */
 399         dev_priv->hw_status_page =
 400                 dma_alloc_coherent(dev->dev, PAGE_SIZE,
 401                                    &dev_priv->dma_status_page, GFP_KERNEL);
 402         if (!dev_priv->hw_status_page) {
 403                 dev->dev_private = (void *)dev_priv;
 404                 i810_dma_cleanup(dev);
 405                 DRM_ERROR("Can not allocate hardware status page\n");
 406                 return -ENOMEM;
 407         }
 408         DRM_DEBUG("hw status page @ %p\n", dev_priv->hw_status_page);
 409
 410         I810_WRITE(0x02080, dev_priv->dma_status_page);
 411         DRM_DEBUG("Enabled hardware status page\n");
 412
 413         /* Now we need to init our freelist */
 414         if (i810_freelist_init(dev, dev_priv) != 0) {
 415                 dev->dev_private = (void *)dev_priv;
 416                 i810_dma_cleanup(dev);
 417                 DRM_ERROR("Not enough space in the status page for"
 418                           " the freelist\n");
 419                 return -ENOMEM;
 420         }
 421         dev->dev_private = (void *)dev_priv;
 422
 423         return 0;
 424 }
 425
 426 static int i810_dma_init(struct drm_device *dev, void *data,
 427                          struct drm_file *file_priv)
 428 {
 429         drm_i810_private_t *dev_priv;
 430         drm_i810_init_t *init = data;
 431         int retcode = 0;
 432
 433         switch (init->func) {
 434         case I810_INIT_DMA_1_4:
 435                 DRM_INFO("Using v1.4 init.\n");
 436                 dev_priv = kmalloc(sizeof(drm_i810_private_t), GFP_KERNEL);
 437                 if (dev_priv == NULL)
 438                         return -ENOMEM;
 439                 retcode = i810_dma_initialize(dev, dev_priv, init);
 440                 break;
 441
 442         case I810_CLEANUP_DMA:
 443                 DRM_INFO("DMA Cleanup\n");
 444                 retcode = i810_dma_cleanup(dev);
 445                 break;
 446         default:
 447                 return -EINVAL;
 448         }
 449
 450         return retcode;
 451 }
 452
 453 /* Most efficient way to verify state for the i810 is as it is
 454  * emitted.  Non-conformant state is silently dropped.
 455  *
 456  * Use 'volatile' & local var tmp to force the emitted values to be
 457  * identical to the verified ones.
 458  */
 459 static void i810EmitContextVerified(struct drm_device *dev,
 460                                     volatile unsigned int *code)
 461 {
 462         drm_i810_private_t *dev_priv = dev->dev_private;
 463         int i, j = 0;
 464         unsigned int tmp;
 465         RING_LOCALS;
 466
 467         BEGIN_LP_RING(I810_CTX_SETUP_SIZE);
 468
 469         OUT_RING(GFX_OP_COLOR_FACTOR);
 470         OUT_RING(code[I810_CTXREG_CF1]);
 471
 472         OUT_RING(GFX_OP_STIPPLE);
 473         OUT_RING(code[I810_CTXREG_ST1]);
 474
 475         for (i = 4; i < I810_CTX_SETUP_SIZE; i++) {
 476                 tmp = code[i];
 477
 478                 if ((tmp & (7 << 29)) == (3 << 29) &&
 479                     (tmp & (0x1f << 24)) < (0x1d << 24)) {
 480                         OUT_RING(tmp);
 481                         j++;
 482                 } else
 483                         printk("constext state dropped!!!\n");
 484         }
 485
 486         if (j & 1)
 487                 OUT_RING(0);
 488
 489         ADVANCE_LP_RING();
 490 }
 491
 492 static void i810EmitTexVerified(struct drm_device *dev, volatile unsigned int *code)
 493 {
 494         drm_i810_private_t *dev_priv = dev->dev_private;
 495         int i, j = 0;
 496         unsigned int tmp;
 497         RING_LOCALS;
 498
 499         BEGIN_LP_RING(I810_TEX_SETUP_SIZE);
 500
 501         OUT_RING(GFX_OP_MAP_INFO);
 502         OUT_RING(code[I810_TEXREG_MI1]);
 503         OUT_RING(code[I810_TEXREG_MI2]);
 504         OUT_RING(code[I810_TEXREG_MI3]);
 505
 506         for (i = 4; i < I810_TEX_SETUP_SIZE; i++) {
 507                 tmp = code[i];
 508
 509                 if ((tmp & (7 << 29)) == (3 << 29) &&
 510                     (tmp & (0x1f << 24)) < (0x1d << 24)) {
 511                         OUT_RING(tmp);
 512                         j++;
 513                 } else
 514                         printk("texture state dropped!!!\n");
 515         }
 516
 517         if (j & 1)
 518                 OUT_RING(0);
 519
 520         ADVANCE_LP_RING();
 521 }
 522
 523 /* Need to do some additional checking when setting the dest buffer.
 524  */
 525 static void i810EmitDestVerified(struct drm_device *dev,
 526                                  volatile unsigned int *code)
 527 {
 528         drm_i810_private_t *dev_priv = dev->dev_private;
 529         unsigned int tmp;
 530         RING_LOCALS;
 531
 532         BEGIN_LP_RING(I810_DEST_SETUP_SIZE + 2);
 533
 534         tmp = code[I810_DESTREG_DI1];
 535         if (tmp == dev_priv->front_di1 || tmp == dev_priv->back_di1) {
 536                 OUT_RING(CMD_OP_DESTBUFFER_INFO);
 537                 OUT_RING(tmp);
 538         } else
 539                 DRM_DEBUG("bad di1 %x (allow %x or %x)\n",
 540                           tmp, dev_priv->front_di1, dev_priv->back_di1);
 541
 542         /* invarient:
 543          */
 544         OUT_RING(CMD_OP_Z_BUFFER_INFO);
 545         OUT_RING(dev_priv->zi1);
 546
 547         OUT_RING(GFX_OP_DESTBUFFER_VARS);
 548         OUT_RING(code[I810_DESTREG_DV1]);
 549
 550         OUT_RING(GFX_OP_DRAWRECT_INFO);
 551         OUT_RING(code[I810_DESTREG_DR1]);
 552         OUT_RING(code[I810_DESTREG_DR2]);
 553         OUT_RING(code[I810_DESTREG_DR3]);
 554         OUT_RING(code[I810_DESTREG_DR4]);
 555         OUT_RING(0);
 556
 557         ADVANCE_LP_RING();
 558 }
 559
 560 static void i810EmitState(struct drm_device *dev)
 561 {
 562         drm_i810_private_t *dev_priv = dev->dev_private;
 563         drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
 564         unsigned int dirty = sarea_priv->dirty;
 565
 566         DRM_DEBUG("%x\n", dirty);
 567
 568         if (dirty & I810_UPLOAD_BUFFERS) {
 569                 i810EmitDestVerified(dev, sarea_priv->BufferState);
 570                 sarea_priv->dirty &= ~I810_UPLOAD_BUFFERS;
 571         }
 572
 573         if (dirty & I810_UPLOAD_CTX) {
 574                 i810EmitContextVerified(dev, sarea_priv->ContextState);
 575                 sarea_priv->dirty &= ~I810_UPLOAD_CTX;
 576         }
 577
 578         if (dirty & I810_UPLOAD_TEX0) {
 579                 i810EmitTexVerified(dev, sarea_priv->TexState[0]);
 580                 sarea_priv->dirty &= ~I810_UPLOAD_TEX0;
 581         }
 582
 583         if (dirty & I810_UPLOAD_TEX1) {
 584                 i810EmitTexVerified(dev, sarea_priv->TexState[1]);
 585                 sarea_priv->dirty &= ~I810_UPLOAD_TEX1;
 586         }
 587 }
 588
 589 /* need to verify
 590  */
 591 static void i810_dma_dispatch_clear(struct drm_device *dev, int flags,
 592                                     unsigned int clear_color,
 593                                     unsigned int clear_zval)
 594 {
 595         drm_i810_private_t *dev_priv = dev->dev_private;
 596         drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
 597         int nbox = sarea_priv->nbox;
 598         struct drm_clip_rect *pbox = sarea_priv->boxes;
 599         int pitch = dev_priv->pitch;
 600         int cpp = 2;
 601         int i;
 602         RING_LOCALS;
 603
 604         if (dev_priv->current_page == 1) {
 605                 unsigned int tmp = flags;
 606
 607                 flags &= ~(I810_FRONT | I810_BACK);
 608                 if (tmp & I810_FRONT)
 609                         flags |= I810_BACK;
 610                 if (tmp & I810_BACK)
 611                         flags |= I810_FRONT;
 612         }
 613
 614         i810_kernel_lost_context(dev);
 615
 616         if (nbox > I810_NR_SAREA_CLIPRECTS)
 617                 nbox = I810_NR_SAREA_CLIPRECTS;
 618
 619         for (i = 0; i < nbox; i++, pbox++) {
 620                 unsigned int x = pbox->x1;
 621                 unsigned int y = pbox->y1;
 622                 unsigned int width = (pbox->x2 - x) * cpp;
 623                 unsigned int height = pbox->y2 - y;
 624                 unsigned int start = y * pitch + x * cpp;
 625
 626                 if (pbox->x1 > pbox->x2 ||
 627                     pbox->y1 > pbox->y2 ||
 628                     pbox->x2 > dev_priv->w || pbox->y2 > dev_priv->h)
 629                         continue;
 630
 631                 if (flags & I810_FRONT) {
 632                         BEGIN_LP_RING(6);
 633                         OUT_RING(BR00_BITBLT_CLIENT | BR00_OP_COLOR_BLT | 0x3);
 634                         OUT_RING(BR13_SOLID_PATTERN | (0xF0 << 16) | pitch);
 635                         OUT_RING((height << 16) | width);
 636                         OUT_RING(start);
 637                         OUT_RING(clear_color);
 638                         OUT_RING(0);
 639                         ADVANCE_LP_RING();
 640                 }
 641
 642                 if (flags & I810_BACK) {
 643                         BEGIN_LP_RING(6);
 644                         OUT_RING(BR00_BITBLT_CLIENT | BR00_OP_COLOR_BLT | 0x3);
 645                         OUT_RING(BR13_SOLID_PATTERN | (0xF0 << 16) | pitch);
 646                         OUT_RING((height << 16) | width);
 647                         OUT_RING(dev_priv->back_offset + start);
 648                         OUT_RING(clear_color);
 649                         OUT_RING(0);
 650                         ADVANCE_LP_RING();
 651                 }
 652
 653                 if (flags & I810_DEPTH) {
 654                         BEGIN_LP_RING(6);
 655                         OUT_RING(BR00_BITBLT_CLIENT | BR00_OP_COLOR_BLT | 0x3);
 656                         OUT_RING(BR13_SOLID_PATTERN | (0xF0 << 16) | pitch);
 657                         OUT_RING((height << 16) | width);
 658                         OUT_RING(dev_priv->depth_offset + start);
 659                         OUT_RING(clear_zval);
 660                         OUT_RING(0);
 661                         ADVANCE_LP_RING();
 662                 }
 663         }
 664 }
 665
 666 static void i810_dma_dispatch_swap(struct drm_device *dev)
 667 {
 668         drm_i810_private_t *dev_priv = dev->dev_private;
 669         drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
 670         int nbox = sarea_priv->nbox;
 671         struct drm_clip_rect *pbox = sarea_priv->boxes;
 672         int pitch = dev_priv->pitch;
 673         int cpp = 2;
 674         int i;
 675         RING_LOCALS;
 676
 677         DRM_DEBUG("swapbuffers\n");
 678
 679         i810_kernel_lost_context(dev);
 680
 681         if (nbox > I810_NR_SAREA_CLIPRECTS)
 682                 nbox = I810_NR_SAREA_CLIPRECTS;
 683
 684         for (i = 0; i < nbox; i++, pbox++) {
 685                 unsigned int w = pbox->x2 - pbox->x1;
 686                 unsigned int h = pbox->y2 - pbox->y1;
 687                 unsigned int dst = pbox->x1 * cpp + pbox->y1 * pitch;
 688                 unsigned int start = dst;
 689
 690                 if (pbox->x1 > pbox->x2 ||
 691                     pbox->y1 > pbox->y2 ||
 692                     pbox->x2 > dev_priv->w || pbox->y2 > dev_priv->h)
 693                         continue;
 694
 695                 BEGIN_LP_RING(6);
 696                 OUT_RING(BR00_BITBLT_CLIENT | BR00_OP_SRC_COPY_BLT | 0x4);
 697                 OUT_RING(pitch | (0xCC << 16));
 698                 OUT_RING((h << 16) | (w * cpp));
 699                 if (dev_priv->current_page == 0)
 700                         OUT_RING(dev_priv->front_offset + start);
 701                 else
 702                         OUT_RING(dev_priv->back_offset + start);
 703                 OUT_RING(pitch);
 704                 if (dev_priv->current_page == 0)
 705                         OUT_RING(dev_priv->back_offset + start);
 706                 else
 707                         OUT_RING(dev_priv->front_offset + start);
 708                 ADVANCE_LP_RING();
 709         }
 710 }
 711
 712 static void i810_dma_dispatch_vertex(struct drm_device *dev,
 713                                      struct drm_buf *buf, int discard, int used)
 714 {
 715         drm_i810_private_t *dev_priv = dev->dev_private;
 716         drm_i810_buf_priv_t *buf_priv = buf->dev_private;
 717         drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
 718         struct drm_clip_rect *box = sarea_priv->boxes;
 719         int nbox = sarea_priv->nbox;
 720         unsigned long address = (unsigned long)buf->bus_address;
 721         unsigned long start = address - dev->agp->base;
 722         int i = 0;
 723         RING_LOCALS;
 724
 725         i810_kernel_lost_context(dev);
 726
 727         if (nbox > I810_NR_SAREA_CLIPRECTS)
 728                 nbox = I810_NR_SAREA_CLIPRECTS;
 729
 730         if (used < 0 || used > 4 * 1024)
 731                 used = 0;
 732
 733         if (sarea_priv->dirty)
 734                 i810EmitState(dev);
 735
 736         if (buf_priv->currently_mapped == I810_BUF_MAPPED) {
 737                 unsigned int prim = (sarea_priv->vertex_prim & PR_MASK);
 738
 739                 *(u32 *) buf_priv->kernel_virtual =
 740                     ((GFX_OP_PRIMITIVE | prim | ((used / 4) - 2)));
 741
 742                 if (used & 4) {
 743                         *(u32 *) ((char *) buf_priv->kernel_virtual + used) = 0;
 744                         used += 4;
 745                 }
 746
 747                 i810_unmap_buffer(buf);
 748         }
 749
 750         if (used) {
 751                 do {
 752                         if (i < nbox) {
 753                                 BEGIN_LP_RING(4);
 754                                 OUT_RING(GFX_OP_SCISSOR | SC_UPDATE_SCISSOR |
 755                                          SC_ENABLE);
 756                                 OUT_RING(GFX_OP_SCISSOR_INFO);
 757                                 OUT_RING(box[i].x1 | (box[i].y1 << 16));
 758                                 OUT_RING((box[i].x2 -
 759                                           1) | ((box[i].y2 - 1) << 16));
 760                                 ADVANCE_LP_RING();
 761                         }
 762
 763                         BEGIN_LP_RING(4);
 764                         OUT_RING(CMD_OP_BATCH_BUFFER);
 765                         OUT_RING(start | BB1_PROTECTED);
 766                         OUT_RING(start + used - 4);
 767                         OUT_RING(0);
 768                         ADVANCE_LP_RING();
 769
 770                 } while (++i < nbox);
 771         }
 772
 773         if (discard) {
 774                 dev_priv->counter++;
 775
 776                 (void)cmpxchg(buf_priv->in_use, I810_BUF_CLIENT,
 777                               I810_BUF_HARDWARE);
 778
 779                 BEGIN_LP_RING(8);
 780                 OUT_RING(CMD_STORE_DWORD_IDX);
 781                 OUT_RING(20);
 782                 OUT_RING(dev_priv->counter);
 783                 OUT_RING(CMD_STORE_DWORD_IDX);
 784                 OUT_RING(buf_priv->my_use_idx);
 785                 OUT_RING(I810_BUF_FREE);
 786                 OUT_RING(CMD_REPORT_HEAD);
 787                 OUT_RING(0);
 788                 ADVANCE_LP_RING();
 789         }
 790 }
 791
 792 static void i810_dma_dispatch_flip(struct drm_device *dev)
 793 {
 794         drm_i810_private_t *dev_priv = dev->dev_private;
 795         int pitch = dev_priv->pitch;
 796         RING_LOCALS;
 797
 798         DRM_DEBUG("page=%d pfCurrentPage=%d\n",
 799                   dev_priv->current_page,
 800                   dev_priv->sarea_priv->pf_current_page);
 801
 802         i810_kernel_lost_context(dev);
 803
 804         BEGIN_LP_RING(2);
 805         OUT_RING(INST_PARSER_CLIENT | INST_OP_FLUSH | INST_FLUSH_MAP_CACHE);
 806         OUT_RING(0);
 807         ADVANCE_LP_RING();
 808
 809         BEGIN_LP_RING(I810_DEST_SETUP_SIZE + 2);
 810         /* On i815 at least ASYNC is buggy */
 811         /* pitch<<5 is from 11.2.8 p158,
 812            its the pitch / 8 then left shifted 8,
 813            so (pitch >> 3) << 8 */
 814         OUT_RING(CMD_OP_FRONTBUFFER_INFO | (pitch << 5) /*| ASYNC_FLIP */ );
 815         if (dev_priv->current_page == 0) {
 816                 OUT_RING(dev_priv->back_offset);
 817                 dev_priv->current_page = 1;
 818         } else {
 819                 OUT_RING(dev_priv->front_offset);
 820                 dev_priv->current_page = 0;
 821         }
 822         OUT_RING(0);
 823         ADVANCE_LP_RING();
 824
 825         BEGIN_LP_RING(2);
 826         OUT_RING(CMD_OP_WAIT_FOR_EVENT | WAIT_FOR_PLANE_A_FLIP);
 827         OUT_RING(0);
 828         ADVANCE_LP_RING();
 829
 830         /* Increment the frame counter.  The client-side 3D driver must
 831          * throttle the framerate by waiting for this value before
 832          * performing the swapbuffer ioctl.
 833          */
 834         dev_priv->sarea_priv->pf_current_page = dev_priv->current_page;
 835
 836 }
 837
 838 static void i810_dma_quiescent(struct drm_device *dev)
 839 {
 840         drm_i810_private_t *dev_priv = dev->dev_private;
 841         RING_LOCALS;
 842
 843         i810_kernel_lost_context(dev);
 844
 845         BEGIN_LP_RING(4);
 846         OUT_RING(INST_PARSER_CLIENT | INST_OP_FLUSH | INST_FLUSH_MAP_CACHE);
 847         OUT_RING(CMD_REPORT_HEAD);
 848         OUT_RING(0);
 849         OUT_RING(0);
 850         ADVANCE_LP_RING();
 851
 852         i810_wait_ring(dev, dev_priv->ring.Size - 8);
 853 }
 854
 855 static void i810_flush_queue(struct drm_device *dev)
 856 {
 857         drm_i810_private_t *dev_priv = dev->dev_private;
 858         struct drm_device_dma *dma = dev->dma;
 859         int i;
 860         RING_LOCALS;
 861
 862         i810_kernel_lost_context(dev);
 863
 864         BEGIN_LP_RING(2);
 865         OUT_RING(CMD_REPORT_HEAD);
 866         OUT_RING(0);
 867         ADVANCE_LP_RING();
 868
 869         i810_wait_ring(dev, dev_priv->ring.Size - 8);
 870
 871         for (i = 0; i < dma->buf_count; i++) {
 872                 struct drm_buf *buf = dma->buflist[i];
 873                 drm_i810_buf_priv_t *buf_priv = buf->dev_private;
 874
 875                 int used = cmpxchg(buf_priv->in_use, I810_BUF_HARDWARE,
 876                                    I810_BUF_FREE);
 877
 878                 if (used == I810_BUF_HARDWARE)
 879                         DRM_DEBUG("reclaimed from HARDWARE\n");
 880                 if (used == I810_BUF_CLIENT)
 881                         DRM_DEBUG("still on client\n");
 882         }
 883
 884         return;
 885 }
 886
 887 /* Must be called with the lock held */
 888 void i810_driver_reclaim_buffers(struct drm_device *dev,
 889                                  struct drm_file *file_priv)
 890 {
 891         struct drm_device_dma *dma = dev->dma;
 892         int i;
 893
 894         if (!dma)
 895                 return;
 896         if (!dev->dev_private)
 897                 return;
 898         if (!dma->buflist)
 899                 return;
 900
 901         i810_flush_queue(dev);
 902
 903         for (i = 0; i < dma->buf_count; i++) {
 904                 struct drm_buf *buf = dma->buflist[i];
 905                 drm_i810_buf_priv_t *buf_priv = buf->dev_private;
 906
 907                 if (buf->file_priv == file_priv && buf_priv) {
 908                         int used = cmpxchg(buf_priv->in_use, I810_BUF_CLIENT,
 909                                            I810_BUF_FREE);
 910
 911                         if (used == I810_BUF_CLIENT)
 912                                 DRM_DEBUG("reclaimed from client\n");
 913                         if (buf_priv->currently_mapped == I810_BUF_MAPPED)
 914                                 buf_priv->currently_mapped = I810_BUF_UNMAPPED;
 915                 }
 916         }
 917 }
 918
 919 static int i810_flush_ioctl(struct drm_device *dev, void *data,
 920                             struct drm_file *file_priv)
 921 {
 922         LOCK_TEST_WITH_RETURN(dev, file_priv);
 923
 924         i810_flush_queue(dev);
 925         return 0;
 926 }
 927
 928 static int i810_dma_vertex(struct drm_device *dev, void *data,
 929                            struct drm_file *file_priv)
 930 {
 931         struct drm_device_dma *dma = dev->dma;
 932         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
 933         u32 *hw_status = dev_priv->hw_status_page;
 934         drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
 935             dev_priv->sarea_priv;
 936         drm_i810_vertex_t *vertex = data;
 937
 938         LOCK_TEST_WITH_RETURN(dev, file_priv);
 939
 940         DRM_DEBUG("idx %d used %d discard %d\n",
 941                   vertex->idx, vertex->used, vertex->discard);
 942
 943         if (vertex->idx < 0 || vertex->idx >= dma->buf_count)
 944                 return -EINVAL;
 945
 946         i810_dma_dispatch_vertex(dev,
 947                                  dma->buflist[vertex->idx],
 948                                  vertex->discard, vertex->used);
 949
 950         sarea_priv->last_enqueue = dev_priv->counter - 1;
 951         sarea_priv->last_dispatch = (int)hw_status[5];
 952
 953         return 0;
 954 }
 955
 956 static int i810_clear_bufs(struct drm_device *dev, void *data,
 957                            struct drm_file *file_priv)
 958 {
 959         drm_i810_clear_t *clear = data;
 960
 961         LOCK_TEST_WITH_RETURN(dev, file_priv);
 962
 963         /* GH: Someone's doing nasty things... */
 964         if (!dev->dev_private)
 965                 return -EINVAL;
 966
 967         i810_dma_dispatch_clear(dev, clear->flags,
 968                                 clear->clear_color, clear->clear_depth);
 969         return 0;
 970 }
 971
 972 static int i810_swap_bufs(struct drm_device *dev, void *data,
 973                           struct drm_file *file_priv)
 974 {
 975         DRM_DEBUG("\n");
 976
 977         LOCK_TEST_WITH_RETURN(dev, file_priv);
 978
 979         i810_dma_dispatch_swap(dev);
 980         return 0;
 981 }
 982
 983 static int i810_getage(struct drm_device *dev, void *data,
 984                        struct drm_file *file_priv)
 985 {
 986         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
 987         u32 *hw_status = dev_priv->hw_status_page;
 988         drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
 989             dev_priv->sarea_priv;
 990
 991         sarea_priv->last_dispatch = (int)hw_status[5];
 992         return 0;
 993 }
 994
 995 static int i810_getbuf(struct drm_device *dev, void *data,
 996                        struct drm_file *file_priv)
 997 {
 998         int retcode = 0;
 999         drm_i810_dma_t *d = data;
1000         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1001         u32 *hw_status = dev_priv->hw_status_page;
1002         drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
1003             dev_priv->sarea_priv;
1004
1005         LOCK_TEST_WITH_RETURN(dev, file_priv);
1006
1007         d->granted = 0;
1008
1009         retcode = i810_dma_get_buffer(dev, d, file_priv);
1010
1011         DRM_DEBUG("i810_dma: %d returning %d, granted = %d\n",
1012                   task_pid_nr(current), retcode, d->granted);
1013
1014         sarea_priv->last_dispatch = (int)hw_status[5];
1015
1016         return retcode;
1017 }
1018
1019 static int i810_copybuf(struct drm_device *dev, void *data,
1020                         struct drm_file *file_priv)
1021 {
1022         /* Never copy - 2.4.x doesn't need it */
1023         return 0;
1024 }
1025
1026 static int i810_docopy(struct drm_device *dev, void *data,
1027                         struct drm_file *file_priv)
1028 {
1029         /* Never copy - 2.4.x doesn't need it */
1030         return 0;
1031 }
1032
1033 static void i810_dma_dispatch_mc(struct drm_device *dev, struct drm_buf *buf, int used,
1034                                  unsigned int last_render)
1035 {
1036         drm_i810_private_t *dev_priv = dev->dev_private;
1037         drm_i810_buf_priv_t *buf_priv = buf->dev_private;
1038         drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
1039         unsigned long address = (unsigned long)buf->bus_address;
1040         unsigned long start = address - dev->agp->base;
1041         int u;
1042         RING_LOCALS;
1043
1044         i810_kernel_lost_context(dev);
1045
1046         u = cmpxchg(buf_priv->in_use, I810_BUF_CLIENT, I810_BUF_HARDWARE);
1047         if (u != I810_BUF_CLIENT)
1048                 DRM_DEBUG("MC found buffer that isn't mine!\n");
1049
1050         if (used < 0 || used > 4 * 1024)
1051                 used = 0;
1052
1053         sarea_priv->dirty = 0x7f;
1054
1055         DRM_DEBUG("addr 0x%lx, used 0x%x\n", address, used);
1056
1057         dev_priv->counter++;
1058         DRM_DEBUG("dispatch counter : %ld\n", dev_priv->counter);
1059         DRM_DEBUG("start : %lx\n", start);
1060         DRM_DEBUG("used : %d\n", used);
1061         DRM_DEBUG("start + used - 4 : %ld\n", start + used - 4);
1062
1063         if (buf_priv->currently_mapped == I810_BUF_MAPPED) {
1064                 if (used & 4) {
1065                         *(u32 *) ((char *) buf_priv->virtual + used) = 0;
1066                         used += 4;
1067                 }
1068
1069                 i810_unmap_buffer(buf);
1070         }
1071         BEGIN_LP_RING(4);
1072         OUT_RING(CMD_OP_BATCH_BUFFER);
1073         OUT_RING(start | BB1_PROTECTED);
1074         OUT_RING(start + used - 4);
1075         OUT_RING(0);
1076         ADVANCE_LP_RING();
1077
1078         BEGIN_LP_RING(8);
1079         OUT_RING(CMD_STORE_DWORD_IDX);
1080         OUT_RING(buf_priv->my_use_idx);
1081         OUT_RING(I810_BUF_FREE);
1082         OUT_RING(0);
1083
1084         OUT_RING(CMD_STORE_DWORD_IDX);
1085         OUT_RING(16);
1086         OUT_RING(last_render);
1087         OUT_RING(0);
1088         ADVANCE_LP_RING();
1089 }
1090
1091 static int i810_dma_mc(struct drm_device *dev, void *data,
1092                        struct drm_file *file_priv)
1093 {
1094         struct drm_device_dma *dma = dev->dma;
1095         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1096         u32 *hw_status = dev_priv->hw_status_page;
1097         drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
1098             dev_priv->sarea_priv;
1099         drm_i810_mc_t *mc = data;
1100
1101         LOCK_TEST_WITH_RETURN(dev, file_priv);
1102
1103         if (mc->idx >= dma->buf_count || mc->idx < 0)
1104                 return -EINVAL;
1105
1106         i810_dma_dispatch_mc(dev, dma->buflist[mc->idx], mc->used,
1107                              mc->last_render);
1108
1109         sarea_priv->last_enqueue = dev_priv->counter - 1;
1110         sarea_priv->last_dispatch = (int)hw_status[5];
1111
1112         return 0;
1113 }
1114
1115 static int i810_rstatus(struct drm_device *dev, void *data,
1116                         struct drm_file *file_priv)
1117 {
1118         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1119
1120         return (int)(((u32 *) (dev_priv->hw_status_page))[4]);
1121 }
1122
1123 static int i810_ov0_info(struct drm_device *dev, void *data,
1124                          struct drm_file *file_priv)
1125 {
1126         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1127         drm_i810_overlay_t *ov = data;
1128
1129         ov->offset = dev_priv->overlay_offset;
1130         ov->physical = dev_priv->overlay_physical;
1131
1132         return 0;
1133 }
1134
1135 static int i810_fstatus(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
1140         LOCK_TEST_WITH_RETURN(dev, file_priv);
1141         return I810_READ(0x30008);
1142 }
1143
1144 static int i810_ov0_flip(struct drm_device *dev, void *data,
1145                          struct drm_file *file_priv)
1146 {
1147         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1148
1149         LOCK_TEST_WITH_RETURN(dev, file_priv);
1150
1151         /* Tell the overlay to update */
1152         I810_WRITE(0x30000, dev_priv->overlay_physical | 0x80000000);
1153
1154         return 0;
1155 }
1156
1157 /* Not sure why this isn't set all the time:
1158  */
1159 static void i810_do_init_pageflip(struct drm_device *dev)
1160 {
1161         drm_i810_private_t *dev_priv = dev->dev_private;
1162
1163         DRM_DEBUG("\n");
1164         dev_priv->page_flipping = 1;
1165         dev_priv->current_page = 0;
1166         dev_priv->sarea_priv->pf_current_page = dev_priv->current_page;
1167 }
1168
1169 static int i810_do_cleanup_pageflip(struct drm_device *dev)
1170 {
1171         drm_i810_private_t *dev_priv = dev->dev_private;
1172
1173         DRM_DEBUG("\n");
1174         if (dev_priv->current_page != 0)
1175                 i810_dma_dispatch_flip(dev);
1176
1177         dev_priv->page_flipping = 0;
1178         return 0;
1179 }
1180
1181 static int i810_flip_bufs(struct drm_device *dev, void *data,
1182                           struct drm_file *file_priv)
1183 {
1184         drm_i810_private_t *dev_priv = dev->dev_private;
1185
1186         DRM_DEBUG("\n");
1187
1188         LOCK_TEST_WITH_RETURN(dev, file_priv);
1189
1190         if (!dev_priv->page_flipping)
1191                 i810_do_init_pageflip(dev);
1192
1193         i810_dma_dispatch_flip(dev);
1194         return 0;
1195 }
1196
1197 int i810_driver_load(struct drm_device *dev, unsigned long flags)
1198 {
1199         struct pci_dev *pdev = to_pci_dev(dev->dev);
1200
1201         dev->agp = drm_legacy_agp_init(dev);
1202         if (dev->agp) {
1203                 dev->agp->agp_mtrr = arch_phys_wc_add(
1204                         dev->agp->agp_info.aper_base,
1205                         dev->agp->agp_info.aper_size *
1206                         1024 * 1024);
1207         }
1208
1209         /* Our userspace depends upon the agp mapping support. */
1210         if (!dev->agp)
1211                 return -EINVAL;
1212
1213         pci_set_master(pdev);
1214
1215         return 0;
1216 }
1217
1218 void i810_driver_lastclose(struct drm_device *dev)
1219 {
1220         i810_dma_cleanup(dev);
1221 }
1222
1223 void i810_driver_preclose(struct drm_device *dev, struct drm_file *file_priv)
1224 {
1225         if (dev->dev_private) {
1226                 drm_i810_private_t *dev_priv = dev->dev_private;
1227                 if (dev_priv->page_flipping)
1228                         i810_do_cleanup_pageflip(dev);
1229         }
1230
1231         if (file_priv->master && file_priv->master->lock.hw_lock) {
1232                 drm_legacy_idlelock_take(&file_priv->master->lock);
1233                 i810_driver_reclaim_buffers(dev, file_priv);
1234                 drm_legacy_idlelock_release(&file_priv->master->lock);
1235         } else {
1236                 /* master disappeared, clean up stuff anyway and hope nothing
1237                  * goes wrong */
1238                 i810_driver_reclaim_buffers(dev, file_priv);
1239         }
1240
1241 }
1242
1243 int i810_driver_dma_quiescent(struct drm_device *dev)
1244 {
1245         i810_dma_quiescent(dev);
1246         return 0;
1247 }
1248
1249 const struct drm_ioctl_desc i810_ioctls[] = {
1250         DRM_IOCTL_DEF_DRV(I810_INIT, i810_dma_init, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY|DRM_UNLOCKED),
1251         DRM_IOCTL_DEF_DRV(I810_VERTEX, i810_dma_vertex, DRM_AUTH|DRM_UNLOCKED),
1252         DRM_IOCTL_DEF_DRV(I810_CLEAR, i810_clear_bufs, DRM_AUTH|DRM_UNLOCKED),
1253         DRM_IOCTL_DEF_DRV(I810_FLUSH, i810_flush_ioctl, DRM_AUTH|DRM_UNLOCKED),
1254         DRM_IOCTL_DEF_DRV(I810_GETAGE, i810_getage, DRM_AUTH|DRM_UNLOCKED),
1255         DRM_IOCTL_DEF_DRV(I810_GETBUF, i810_getbuf, DRM_AUTH|DRM_UNLOCKED),
1256         DRM_IOCTL_DEF_DRV(I810_SWAP, i810_swap_bufs, DRM_AUTH|DRM_UNLOCKED),
1257         DRM_IOCTL_DEF_DRV(I810_COPY, i810_copybuf, DRM_AUTH|DRM_UNLOCKED),
1258         DRM_IOCTL_DEF_DRV(I810_DOCOPY, i810_docopy, DRM_AUTH|DRM_UNLOCKED),
1259         DRM_IOCTL_DEF_DRV(I810_OV0INFO, i810_ov0_info, DRM_AUTH|DRM_UNLOCKED),
1260         DRM_IOCTL_DEF_DRV(I810_FSTATUS, i810_fstatus, DRM_AUTH|DRM_UNLOCKED),
1261         DRM_IOCTL_DEF_DRV(I810_OV0FLIP, i810_ov0_flip, DRM_AUTH|DRM_UNLOCKED),
1262         DRM_IOCTL_DEF_DRV(I810_MC, i810_dma_mc, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY|DRM_UNLOCKED),
1263         DRM_IOCTL_DEF_DRV(I810_RSTATUS, i810_rstatus, DRM_AUTH|DRM_UNLOCKED),
1264         DRM_IOCTL_DEF_DRV(I810_FLIP, i810_flip_bufs, DRM_AUTH|DRM_UNLOCKED),
1265 };
1266
1267 int i810_max_ioctl = ARRAY_SIZE(i810_ioctls);