drivers/gpu/drm/i810/i810_dma.c

   1 /* i810_dma.c -- DMA support for the i810 -*- linux-c -*-
   2  * Created: Mon Dec 13 01:50:01 1999 by jhartmann@precisioninsight.com
   3  *
   4  * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
   5  * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
   6  * All Rights Reserved.
   7  *
   8  * Permission is hereby granted, free of charge, to any person obtaining a
   9  * copy of this software and associated documentation files (the "Software"),
  10  * to deal in the Software without restriction, including without limitation
  11  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  12  * and/or sell copies of the Software, and to permit persons to whom the
  13  * Software is furnished to do so, subject to the following conditions:
  14  *
  15  * The above copyright notice and this permission notice (including the next
  16  * paragraph) shall be included in all copies or substantial portions of the
  17  * Software.
  18  *
  19  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  20  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  21  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  22  * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
  23  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  24  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  25  * DEALINGS IN THE SOFTWARE.
  26  *
  27  * Authors: Rickard E. (Rik) Faith <faith@valinux.com>
  28  *          Jeff Hartmann <jhartmann@valinux.com>
  29  *          Keith Whitwell <keith@tungstengraphics.com>
  30  *
  31  */
  32
  33 #include "drmP.h"
  34 #include "drm.h"
  35 #include "i810_drm.h"
  36 #include "i810_drv.h"
  37 #include <linux/interrupt.h>    /* For task queue support */
  38 #include <linux/delay.h>
  39 #include <linux/slab.h>
  40 #include <linux/pagemap.h>
  41
  42 #define I810_BUF_FREE           2
  43 #define I810_BUF_CLIENT         1
  44 #define I810_BUF_HARDWARE       0
  45
  46 #define I810_BUF_UNMAPPED 0
  47 #define I810_BUF_MAPPED   1
  48
  49 static struct drm_buf *i810_freelist_get(struct drm_device * dev)
  50 {
  51         struct drm_device_dma *dma = dev->dma;
  52         int i;
  53         int used;
  54
  55         /* Linear search might not be the best solution */
  56
  57         for (i = 0; i < dma->buf_count; i++) {
  58                 struct drm_buf *buf = dma->buflist[i];
  59                 drm_i810_buf_priv_t *buf_priv = buf->dev_private;
  60                 /* In use is already a pointer */
  61                 used = cmpxchg(buf_priv->in_use, I810_BUF_FREE,
  62                                I810_BUF_CLIENT);
  63                 if (used == I810_BUF_FREE)
  64                         return buf;
  65         }
  66         return NULL;
  67 }
  68
  69 /* This should only be called if the buffer is not sent to the hardware
  70  * yet, the hardware updates in use for us once its on the ring buffer.
  71  */
  72
  73 static int i810_freelist_put(struct drm_device *dev, struct drm_buf *buf)
  74 {
  75         drm_i810_buf_priv_t *buf_priv = buf->dev_private;
  76         int used;
  77
  78         /* In use is already a pointer */
  79         used = cmpxchg(buf_priv->in_use, I810_BUF_CLIENT, I810_BUF_FREE);
  80         if (used != I810_BUF_CLIENT) {
  81                 DRM_ERROR("Freeing buffer thats not in use : %d\n", buf->idx);
  82                 return -EINVAL;
  83         }
  84
  85         return 0;
  86 }
  87
  88 static int i810_mmap_buffers(struct file *filp, struct vm_area_struct *vma)
  89 {
  90         struct drm_file *priv = filp->private_data;
  91         struct drm_device *dev;
  92         drm_i810_private_t *dev_priv;
  93         struct drm_buf *buf;
  94         drm_i810_buf_priv_t *buf_priv;
  95
  96         dev = priv->minor->dev;
  97         dev_priv = dev->dev_private;
  98         buf = dev_priv->mmap_buffer;
  99         buf_priv = buf->dev_private;
 100
 101         vma->vm_flags |= (VM_IO | VM_DONTCOPY);
 102
 103         buf_priv->currently_mapped = I810_BUF_MAPPED;
 104
 105         if (io_remap_pfn_range(vma, vma->vm_start,
 106                                vma->vm_pgoff,
 107                                vma->vm_end - vma->vm_start, vma->vm_page_prot))
 108                 return -EAGAIN;
 109         return 0;
 110 }
 111
 112 static const struct file_operations i810_buffer_fops = {
 113         .open = drm_open,
 114         .release = drm_release,
 115         .unlocked_ioctl = drm_ioctl,
 116         .mmap = i810_mmap_buffers,
 117         .fasync = drm_fasync,
 118         .llseek = noop_llseek,
 119 };
 120
 121 static int i810_map_buffer(struct drm_buf *buf, struct drm_file *file_priv)
 122 {
 123         struct drm_device *dev = file_priv->minor->dev;
 124         drm_i810_buf_priv_t *buf_priv = buf->dev_private;
 125         drm_i810_private_t *dev_priv = dev->dev_private;
 126         const struct file_operations *old_fops;
 127         int retcode = 0;
 128
 129         if (buf_priv->currently_mapped == I810_BUF_MAPPED)
 130                 return -EINVAL;
 131
 132         down_write(&current->mm->mmap_sem);
 133         old_fops = file_priv->filp->f_op;
 134         file_priv->filp->f_op = &i810_buffer_fops;
 135         dev_priv->mmap_buffer = buf;
 136         buf_priv->virtual = (void *)do_mmap(file_priv->filp, 0, buf->total,
 137                                             PROT_READ | PROT_WRITE,
 138                                             MAP_SHARED, buf->bus_address);
 139         dev_priv->mmap_buffer = NULL;
 140         file_priv->filp->f_op = old_fops;
 141         if (IS_ERR(buf_priv->virtual)) {
 142                 /* Real error */
 143                 DRM_ERROR("mmap error\n");
 144                 retcode = PTR_ERR(buf_priv->virtual);
 145                 buf_priv->virtual = NULL;
 146         }
 147         up_write(&current->mm->mmap_sem);
 148
 149         return retcode;
 150 }
 151
 152 static int i810_unmap_buffer(struct drm_buf *buf)
 153 {
 154         drm_i810_buf_priv_t *buf_priv = buf->dev_private;
 155         int retcode = 0;
 156
 157         if (buf_priv->currently_mapped != I810_BUF_MAPPED)
 158                 return -EINVAL;
 159
 160         down_write(&current->mm->mmap_sem);
 161         retcode = do_munmap(current->mm,
 162                             (unsigned long)buf_priv->virtual,
 163                             (size_t) buf->total);
 164         up_write(&current->mm->mmap_sem);
 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_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_core_ioremapfree(&dev_priv->ring.map, dev);
 220                 if (dev_priv->hw_status_page) {
 221                         pci_free_consistent(dev->pdev, 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_core_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_core_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_core_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_core_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_core_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             pci_alloc_consistent(dev->pdev, PAGE_SIZE,
 400                                  &dev_priv->dma_status_page);
 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         memset(dev_priv->hw_status_page, 0, PAGE_SIZE);
 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 > 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 int 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, ret = 0;
 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 ret;
 885 }
 886
 887 /* Must be called with the lock held */
 888 static void i810_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         atomic_add(vertex->used, &dev->counts[_DRM_STAT_SECONDARY]);
 951         atomic_inc(&dev->counts[_DRM_STAT_DMA]);
 952         sarea_priv->last_enqueue = dev_priv->counter - 1;
 953         sarea_priv->last_dispatch = (int)hw_status[5];
 954
 955         return 0;
 956 }
 957
 958 static int i810_clear_bufs(struct drm_device *dev, void *data,
 959                            struct drm_file *file_priv)
 960 {
 961         drm_i810_clear_t *clear = data;
 962
 963         LOCK_TEST_WITH_RETURN(dev, file_priv);
 964
 965         /* GH: Someone's doing nasty things... */
 966         if (!dev->dev_private)
 967                 return -EINVAL;
 968
 969         i810_dma_dispatch_clear(dev, clear->flags,
 970                                 clear->clear_color, clear->clear_depth);
 971         return 0;
 972 }
 973
 974 static int i810_swap_bufs(struct drm_device *dev, void *data,
 975                           struct drm_file *file_priv)
 976 {
 977         DRM_DEBUG("\n");
 978
 979         LOCK_TEST_WITH_RETURN(dev, file_priv);
 980
 981         i810_dma_dispatch_swap(dev);
 982         return 0;
 983 }
 984
 985 static int i810_getage(struct drm_device *dev, void *data,
 986                        struct drm_file *file_priv)
 987 {
 988         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
 989         u32 *hw_status = dev_priv->hw_status_page;
 990         drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
 991             dev_priv->sarea_priv;
 992
 993         sarea_priv->last_dispatch = (int)hw_status[5];
 994         return 0;
 995 }
 996
 997 static int i810_getbuf(struct drm_device *dev, void *data,
 998                        struct drm_file *file_priv)
 999 {
1000         int retcode = 0;
1001         drm_i810_dma_t *d = data;
1002         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1003         u32 *hw_status = dev_priv->hw_status_page;
1004         drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
1005             dev_priv->sarea_priv;
1006
1007         LOCK_TEST_WITH_RETURN(dev, file_priv);
1008
1009         d->granted = 0;
1010
1011         retcode = i810_dma_get_buffer(dev, d, file_priv);
1012
1013         DRM_DEBUG("i810_dma: %d returning %d, granted = %d\n",
1014                   task_pid_nr(current), retcode, d->granted);
1015
1016         sarea_priv->last_dispatch = (int)hw_status[5];
1017
1018         return retcode;
1019 }
1020
1021 static int i810_copybuf(struct drm_device *dev, void *data,
1022                         struct drm_file *file_priv)
1023 {
1024         /* Never copy - 2.4.x doesn't need it */
1025         return 0;
1026 }
1027
1028 static int i810_docopy(struct drm_device *dev, void *data,
1029                         struct drm_file *file_priv)
1030 {
1031         /* Never copy - 2.4.x doesn't need it */
1032         return 0;
1033 }
1034
1035 static void i810_dma_dispatch_mc(struct drm_device *dev, struct drm_buf *buf, int used,
1036                                  unsigned int last_render)
1037 {
1038         drm_i810_private_t *dev_priv = dev->dev_private;
1039         drm_i810_buf_priv_t *buf_priv = buf->dev_private;
1040         drm_i810_sarea_t *sarea_priv = dev_priv->sarea_priv;
1041         unsigned long address = (unsigned long)buf->bus_address;
1042         unsigned long start = address - dev->agp->base;
1043         int u;
1044         RING_LOCALS;
1045
1046         i810_kernel_lost_context(dev);
1047
1048         u = cmpxchg(buf_priv->in_use, I810_BUF_CLIENT, I810_BUF_HARDWARE);
1049         if (u != I810_BUF_CLIENT)
1050                 DRM_DEBUG("MC found buffer that isn't mine!\n");
1051
1052         if (used > 4 * 1024)
1053                 used = 0;
1054
1055         sarea_priv->dirty = 0x7f;
1056
1057         DRM_DEBUG("addr 0x%lx, used 0x%x\n", address, used);
1058
1059         dev_priv->counter++;
1060         DRM_DEBUG("dispatch counter : %ld\n", dev_priv->counter);
1061         DRM_DEBUG("start : %lx\n", start);
1062         DRM_DEBUG("used : %d\n", used);
1063         DRM_DEBUG("start + used - 4 : %ld\n", start + used - 4);
1064
1065         if (buf_priv->currently_mapped == I810_BUF_MAPPED) {
1066                 if (used & 4) {
1067                         *(u32 *) ((char *) buf_priv->virtual + used) = 0;
1068                         used += 4;
1069                 }
1070
1071                 i810_unmap_buffer(buf);
1072         }
1073         BEGIN_LP_RING(4);
1074         OUT_RING(CMD_OP_BATCH_BUFFER);
1075         OUT_RING(start | BB1_PROTECTED);
1076         OUT_RING(start + used - 4);
1077         OUT_RING(0);
1078         ADVANCE_LP_RING();
1079
1080         BEGIN_LP_RING(8);
1081         OUT_RING(CMD_STORE_DWORD_IDX);
1082         OUT_RING(buf_priv->my_use_idx);
1083         OUT_RING(I810_BUF_FREE);
1084         OUT_RING(0);
1085
1086         OUT_RING(CMD_STORE_DWORD_IDX);
1087         OUT_RING(16);
1088         OUT_RING(last_render);
1089         OUT_RING(0);
1090         ADVANCE_LP_RING();
1091 }
1092
1093 static int i810_dma_mc(struct drm_device *dev, void *data,
1094                        struct drm_file *file_priv)
1095 {
1096         struct drm_device_dma *dma = dev->dma;
1097         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1098         u32 *hw_status = dev_priv->hw_status_page;
1099         drm_i810_sarea_t *sarea_priv = (drm_i810_sarea_t *)
1100             dev_priv->sarea_priv;
1101         drm_i810_mc_t *mc = data;
1102
1103         LOCK_TEST_WITH_RETURN(dev, file_priv);
1104
1105         if (mc->idx >= dma->buf_count || mc->idx < 0)
1106                 return -EINVAL;
1107
1108         i810_dma_dispatch_mc(dev, dma->buflist[mc->idx], mc->used,
1109                              mc->last_render);
1110
1111         atomic_add(mc->used, &dev->counts[_DRM_STAT_SECONDARY]);
1112         atomic_inc(&dev->counts[_DRM_STAT_DMA]);
1113         sarea_priv->last_enqueue = dev_priv->counter - 1;
1114         sarea_priv->last_dispatch = (int)hw_status[5];
1115
1116         return 0;
1117 }
1118
1119 static int i810_rstatus(struct drm_device *dev, void *data,
1120                         struct drm_file *file_priv)
1121 {
1122         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1123
1124         return (int)(((u32 *) (dev_priv->hw_status_page))[4]);
1125 }
1126
1127 static int i810_ov0_info(struct drm_device *dev, void *data,
1128                          struct drm_file *file_priv)
1129 {
1130         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1131         drm_i810_overlay_t *ov = data;
1132
1133         ov->offset = dev_priv->overlay_offset;
1134         ov->physical = dev_priv->overlay_physical;
1135
1136         return 0;
1137 }
1138
1139 static int i810_fstatus(struct drm_device *dev, void *data,
1140                         struct drm_file *file_priv)
1141 {
1142         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1143
1144         LOCK_TEST_WITH_RETURN(dev, file_priv);
1145         return I810_READ(0x30008);
1146 }
1147
1148 static int i810_ov0_flip(struct drm_device *dev, void *data,
1149                          struct drm_file *file_priv)
1150 {
1151         drm_i810_private_t *dev_priv = (drm_i810_private_t *) dev->dev_private;
1152
1153         LOCK_TEST_WITH_RETURN(dev, file_priv);
1154
1155         /* Tell the overlay to update */
1156         I810_WRITE(0x30000, dev_priv->overlay_physical | 0x80000000);
1157
1158         return 0;
1159 }
1160
1161 /* Not sure why this isn't set all the time:
1162  */
1163 static void i810_do_init_pageflip(struct drm_device *dev)
1164 {
1165         drm_i810_private_t *dev_priv = dev->dev_private;
1166
1167         DRM_DEBUG("\n");
1168         dev_priv->page_flipping = 1;
1169         dev_priv->current_page = 0;
1170         dev_priv->sarea_priv->pf_current_page = dev_priv->current_page;
1171 }
1172
1173 static int i810_do_cleanup_pageflip(struct drm_device *dev)
1174 {
1175         drm_i810_private_t *dev_priv = dev->dev_private;
1176
1177         DRM_DEBUG("\n");
1178         if (dev_priv->current_page != 0)
1179                 i810_dma_dispatch_flip(dev);
1180
1181         dev_priv->page_flipping = 0;
1182         return 0;
1183 }
1184
1185 static int i810_flip_bufs(struct drm_device *dev, void *data,
1186                           struct drm_file *file_priv)
1187 {
1188         drm_i810_private_t *dev_priv = dev->dev_private;
1189
1190         DRM_DEBUG("\n");
1191
1192         LOCK_TEST_WITH_RETURN(dev, file_priv);
1193
1194         if (!dev_priv->page_flipping)
1195                 i810_do_init_pageflip(dev);
1196
1197         i810_dma_dispatch_flip(dev);
1198         return 0;
1199 }
1200
1201 int i810_driver_load(struct drm_device *dev, unsigned long flags)
1202 {
1203         /* i810 has 4 more counters */
1204         dev->counters += 4;
1205         dev->types[6] = _DRM_STAT_IRQ;
1206         dev->types[7] = _DRM_STAT_PRIMARY;
1207         dev->types[8] = _DRM_STAT_SECONDARY;
1208         dev->types[9] = _DRM_STAT_DMA;
1209
1210         pci_set_master(dev->pdev);
1211
1212         return 0;
1213 }
1214
1215 void i810_driver_lastclose(struct drm_device *dev)
1216 {
1217         i810_dma_cleanup(dev);
1218 }
1219
1220 void i810_driver_preclose(struct drm_device *dev, struct drm_file *file_priv)
1221 {
1222         if (dev->dev_private) {
1223                 drm_i810_private_t *dev_priv = dev->dev_private;
1224                 if (dev_priv->page_flipping)
1225                         i810_do_cleanup_pageflip(dev);
1226         }
1227 }
1228
1229 void i810_driver_reclaim_buffers_locked(struct drm_device *dev,
1230                                         struct drm_file *file_priv)
1231 {
1232         i810_reclaim_buffers(dev, file_priv);
1233 }
1234
1235 int i810_driver_dma_quiescent(struct drm_device *dev)
1236 {
1237         i810_dma_quiescent(dev);
1238         return 0;
1239 }
1240
1241 struct drm_ioctl_desc i810_ioctls[] = {
1242         DRM_IOCTL_DEF_DRV(I810_INIT, i810_dma_init, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY|DRM_UNLOCKED),
1243         DRM_IOCTL_DEF_DRV(I810_VERTEX, i810_dma_vertex, DRM_AUTH|DRM_UNLOCKED),
1244         DRM_IOCTL_DEF_DRV(I810_CLEAR, i810_clear_bufs, DRM_AUTH|DRM_UNLOCKED),
1245         DRM_IOCTL_DEF_DRV(I810_FLUSH, i810_flush_ioctl, DRM_AUTH|DRM_UNLOCKED),
1246         DRM_IOCTL_DEF_DRV(I810_GETAGE, i810_getage, DRM_AUTH|DRM_UNLOCKED),
1247         DRM_IOCTL_DEF_DRV(I810_GETBUF, i810_getbuf, DRM_AUTH|DRM_UNLOCKED),
1248         DRM_IOCTL_DEF_DRV(I810_SWAP, i810_swap_bufs, DRM_AUTH|DRM_UNLOCKED),
1249         DRM_IOCTL_DEF_DRV(I810_COPY, i810_copybuf, DRM_AUTH|DRM_UNLOCKED),
1250         DRM_IOCTL_DEF_DRV(I810_DOCOPY, i810_docopy, DRM_AUTH|DRM_UNLOCKED),
1251         DRM_IOCTL_DEF_DRV(I810_OV0INFO, i810_ov0_info, DRM_AUTH|DRM_UNLOCKED),
1252         DRM_IOCTL_DEF_DRV(I810_FSTATUS, i810_fstatus, DRM_AUTH|DRM_UNLOCKED),
1253         DRM_IOCTL_DEF_DRV(I810_OV0FLIP, i810_ov0_flip, DRM_AUTH|DRM_UNLOCKED),
1254         DRM_IOCTL_DEF_DRV(I810_MC, i810_dma_mc, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY|DRM_UNLOCKED),
1255         DRM_IOCTL_DEF_DRV(I810_RSTATUS, i810_rstatus, DRM_AUTH|DRM_UNLOCKED),
1256         DRM_IOCTL_DEF_DRV(I810_FLIP, i810_flip_bufs, DRM_AUTH|DRM_UNLOCKED),
1257 };
1258
1259 int i810_max_ioctl = DRM_ARRAY_SIZE(i810_ioctls);
1260
1261 /**
1262  * Determine if the device really is AGP or not.
1263  *
1264  * All Intel graphics chipsets are treated as AGP, even if they are really
1265  * PCI-e.
1266  *
1267  * \param dev   The device to be tested.
1268  *
1269  * \returns
1270  * A value of 1 is always retured to indictate every i810 is AGP.
1271  */
1272 int i810_driver_device_is_agp(struct drm_device *dev)
1273 {
1274         return 1;
1275 }