linux-core/xgi_drv.c

   1 /****************************************************************************
   2  * Copyright (C) 2003-2006 by XGI Technology, Taiwan.
   3  *
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining
   7  * a copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation on the rights to use, copy, modify, merge,
  10  * publish, distribute, sublicense, and/or sell copies of the Software,
  11  * and to permit persons to whom the Software is furnished to do so,
  12  * subject to the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial
  16  * portions of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  20  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.  IN NO EVENT SHALL
  21  * XGI AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  22  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  23  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  24  * DEALINGS IN THE SOFTWARE.
  25  ***************************************************************************/
  26
  27 #include "drmP.h"
  28 #include "drm.h"
  29 #include "xgi_drv.h"
  30 #include "xgi_regs.h"
  31 #include "xgi_misc.h"
  32 #include "xgi_cmdlist.h"
  33
  34 #include "drm_pciids.h"
  35
  36 static struct pci_device_id pciidlist[] = {
  37         xgi_PCI_IDS
  38 };
  39
  40 extern struct drm_fence_driver xgi_fence_driver;
  41
  42 int xgi_bootstrap(struct drm_device *, void *, struct drm_file *);
  43
  44 static struct drm_ioctl_desc xgi_ioctls[] = {
  45         DRM_IOCTL_DEF(DRM_XGI_BOOTSTRAP, xgi_bootstrap, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
  46         DRM_IOCTL_DEF(DRM_XGI_ALLOC, xgi_alloc_ioctl, DRM_AUTH),
  47         DRM_IOCTL_DEF(DRM_XGI_FREE, xgi_free_ioctl, DRM_AUTH),
  48         DRM_IOCTL_DEF(DRM_XGI_SUBMIT_CMDLIST, xgi_submit_cmdlist, DRM_AUTH),
  49         DRM_IOCTL_DEF(DRM_XGI_STATE_CHANGE, xgi_state_change_ioctl, DRM_AUTH|DRM_MASTER),
  50 };
  51
  52 static const int xgi_max_ioctl = DRM_ARRAY_SIZE(xgi_ioctls);
  53
  54 static int probe(struct pci_dev *pdev, const struct pci_device_id *ent);
  55 static int xgi_driver_load(struct drm_device *dev, unsigned long flags);
  56 static int xgi_driver_unload(struct drm_device *dev);
  57 static void xgi_driver_lastclose(struct drm_device * dev);
  58 static void xgi_reclaim_buffers_locked(struct drm_device * dev,
  59         struct drm_file * filp);
  60 static irqreturn_t xgi_kern_isr(DRM_IRQ_ARGS);
  61
  62
  63 static struct drm_driver driver = {
  64         .driver_features =
  65                 DRIVER_PCI_DMA | DRIVER_HAVE_DMA | DRIVER_HAVE_IRQ |
  66                 DRIVER_IRQ_SHARED | DRIVER_SG,
  67         .dev_priv_size = sizeof(struct xgi_info),
  68         .load = xgi_driver_load,
  69         .unload = xgi_driver_unload,
  70         .lastclose = xgi_driver_lastclose,
  71         .dma_quiescent = NULL,
  72         .irq_preinstall = NULL,
  73         .irq_postinstall = NULL,
  74         .irq_uninstall = NULL,
  75         .irq_handler = xgi_kern_isr,
  76         .reclaim_buffers = drm_core_reclaim_buffers,
  77         .reclaim_buffers_idlelocked = xgi_reclaim_buffers_locked,
  78         .get_map_ofs = drm_core_get_map_ofs,
  79         .get_reg_ofs = drm_core_get_reg_ofs,
  80         .ioctls = xgi_ioctls,
  81         .dma_ioctl = NULL,
  82
  83         .fops = {
  84                 .owner = THIS_MODULE,
  85                 .open = drm_open,
  86                 .release = drm_release,
  87                 .ioctl = drm_ioctl,
  88                 .mmap = drm_mmap,
  89                 .poll = drm_poll,
  90                 .fasync = drm_fasync,
  91 #if defined(CONFIG_COMPAT) && LINUX_VERSION_CODE > KERNEL_VERSION(2,6,9)
  92                 .compat_ioctl = xgi_compat_ioctl,
  93 #endif
  94         },
  95
  96         .pci_driver = {
  97                 .name = DRIVER_NAME,
  98                 .id_table = pciidlist,
  99                 .probe = probe,
 100                 .remove = __devexit_p(drm_cleanup_pci),
 101         },
 102
 103         .fence_driver = &xgi_fence_driver,
 104
 105         .name = DRIVER_NAME,
 106         .desc = DRIVER_DESC,
 107         .date = DRIVER_DATE,
 108         .major = DRIVER_MAJOR,
 109         .minor = DRIVER_MINOR,
 110         .patchlevel = DRIVER_PATCHLEVEL,
 111
 112 };
 113
 114 static int probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 115 {
 116         return drm_get_dev(pdev, ent, &driver);
 117 }
 118
 119
 120 static int __init xgi_init(void)
 121 {
 122         driver.num_ioctls = xgi_max_ioctl;
 123         return drm_init(&driver, pciidlist);
 124 }
 125
 126 static void __exit xgi_exit(void)
 127 {
 128         drm_exit(&driver);
 129 }
 130
 131 module_init(xgi_init);
 132 module_exit(xgi_exit);
 133
 134 MODULE_AUTHOR(DRIVER_AUTHOR);
 135 MODULE_DESCRIPTION(DRIVER_DESC);
 136 MODULE_LICENSE("GPL and additional rights");
 137
 138
 139 void xgi_engine_init(struct xgi_info * info)
 140 {
 141         u8 temp;
 142
 143
 144         OUT3C5B(info->mmio_map, 0x11, 0x92);
 145
 146         /* -------> copy from OT2D
 147          * PCI Retry Control Register.
 148          * disable PCI read retry & enable write retry in mem. (10xx xxxx)b
 149          */
 150         temp = IN3X5B(info->mmio_map, 0x55);
 151         OUT3X5B(info->mmio_map, 0x55, (temp & 0xbf) | 0x80);
 152
 153         xgi_enable_ge(info);
 154
 155         /* Enable linear addressing of the card. */
 156         temp = IN3X5B(info->mmio_map, 0x21);
 157         OUT3X5B(info->mmio_map, 0x21, temp | 0x20);
 158
 159         /* Enable 32-bit internal data path */
 160         temp = IN3X5B(info->mmio_map, 0x2A);
 161         OUT3X5B(info->mmio_map, 0x2A, temp | 0x40);
 162
 163         /* Enable PCI burst write ,disable burst read and enable MMIO. */
 164         /*
 165          * 0x3D4.39 Enable PCI burst write, disable burst read and enable MMIO.
 166          * 7 ---- Pixel Data Format 1:  big endian 0:  little endian
 167          * 6 5 4 3---- Memory Data with Big Endian Format, BE[3:0]#  with Big Endian Format
 168          * 2 ---- PCI Burst Write Enable
 169          * 1 ---- PCI Burst Read Enable
 170          * 0 ---- MMIO Control
 171          */
 172         temp = IN3X5B(info->mmio_map, 0x39);
 173         OUT3X5B(info->mmio_map, 0x39, (temp | 0x05) & 0xfd);
 174
 175         /* enable GEIO decode */
 176         /* temp = IN3X5B(info->mmio_map, 0x29);
 177          * OUT3X5B(info->mmio_map, 0x29, temp | 0x08);
 178          */
 179
 180         /* Enable graphic engine I/O PCI retry function*/
 181         /* temp = IN3X5B(info->mmio_map, 0x62);
 182          * OUT3X5B(info->mmio_map, 0x62, temp | 0x50);
 183          */
 184
 185         /* protect all register except which protected by 3c5.0e.7 */
 186         /* OUT3C5B(info->mmio_map, 0x11, 0x87); */
 187 }
 188
 189
 190 int xgi_bootstrap(struct drm_device * dev, void * data,
 191                   struct drm_file * filp)
 192 {
 193         struct xgi_info *info = dev->dev_private;
 194         struct xgi_bootstrap * bs = (struct xgi_bootstrap *) data;
 195         struct drm_map_list *maplist;
 196         int err;
 197
 198
 199         DRM_SPININIT(&info->fence_lock, "fence lock");
 200         info->next_sequence = 0;
 201         info->complete_sequence = 0;
 202
 203         if (info->mmio_map == NULL) {
 204                 err = drm_addmap(dev, info->mmio.base, info->mmio.size,
 205                                  _DRM_REGISTERS, _DRM_KERNEL,
 206                                  &info->mmio_map);
 207                 if (err) {
 208                         DRM_ERROR("Unable to map MMIO region: %d\n", err);
 209                         return err;
 210                 }
 211
 212                 xgi_enable_mmio(info);
 213                 xgi_engine_init(info);
 214         }
 215
 216
 217         info->fb.size = IN3CFB(info->mmio_map, 0x54) * 8 * 1024 * 1024;
 218
 219         DRM_INFO("fb   base: 0x%lx, size: 0x%x (probed)\n",
 220                  (unsigned long) info->fb.base, info->fb.size);
 221
 222
 223         if ((info->fb.base == 0) || (info->fb.size == 0)) {
 224                 DRM_ERROR("framebuffer appears to be wrong: 0x%lx 0x%x\n",
 225                           (unsigned long) info->fb.base, info->fb.size);
 226                 return -EINVAL;
 227         }
 228
 229
 230         /* Init the resource manager */
 231         if (!info->fb_heap_initialized) {
 232                 err = xgi_fb_heap_init(info);
 233                 if (err) {
 234                         DRM_ERROR("Unable to initialize FB heap.\n");
 235                         return err;
 236                 }
 237         }
 238
 239
 240         info->pcie.size = bs->gart.size;
 241
 242         /* Init the resource manager */
 243         if (!info->pcie_heap_initialized) {
 244                 err = xgi_pcie_heap_init(info);
 245                 if (err) {
 246                         DRM_ERROR("Unable to initialize GART heap.\n");
 247                         return err;
 248                 }
 249
 250                 /* Alloc 1M bytes for cmdbuffer which is flush2D batch array */
 251                 err = xgi_cmdlist_initialize(info, 0x100000, filp);
 252                 if (err) {
 253                         DRM_ERROR("xgi_cmdlist_initialize() failed\n");
 254                         return err;
 255                 }
 256         }
 257
 258
 259         if (info->pcie_map == NULL) {
 260                 err = drm_addmap(info->dev, 0, info->pcie.size,
 261                                  _DRM_SCATTER_GATHER, _DRM_LOCKED,
 262                                  & info->pcie_map);
 263                 if (err) {
 264                         DRM_ERROR("Could not add map for GART backing "
 265                                   "store.\n");
 266                         return err;
 267                 }
 268         }
 269
 270
 271         maplist = drm_find_matching_map(dev, info->pcie_map);
 272         if (maplist == NULL) {
 273                 DRM_ERROR("Could not find GART backing store map.\n");
 274                 return -EINVAL;
 275         }
 276
 277         bs->gart = *info->pcie_map;
 278         bs->gart.handle = (void *)(unsigned long) maplist->user_token;
 279         return 0;
 280 }
 281
 282
 283 void xgi_driver_lastclose(struct drm_device * dev)
 284 {
 285         struct xgi_info * info = dev->dev_private;
 286
 287         if (info != NULL) {
 288                 if (info->mmio_map != NULL) {
 289                         xgi_cmdlist_cleanup(info);
 290                         xgi_disable_ge(info);
 291                         xgi_disable_mmio(info);
 292                 }
 293
 294                 /* The core DRM lastclose routine will destroy all of our
 295                  * mappings for us.  NULL out the pointers here so that
 296                  * xgi_bootstrap can do the right thing.
 297                  */
 298                 info->pcie_map = NULL;
 299                 info->mmio_map = NULL;
 300                 info->fb_map = NULL;
 301
 302                 if (info->pcie_heap_initialized) {
 303                         drm_ati_pcigart_cleanup(dev, &info->gart_info);
 304                 }
 305
 306                 if (info->fb_heap_initialized
 307                     || info->pcie_heap_initialized) {
 308                         drm_sman_cleanup(&info->sman);
 309
 310                         info->fb_heap_initialized = FALSE;
 311                         info->pcie_heap_initialized = FALSE;
 312                 }
 313         }
 314 }
 315
 316
 317 void xgi_reclaim_buffers_locked(struct drm_device * dev,
 318                                 struct drm_file * filp)
 319 {
 320         struct xgi_info * info = dev->dev_private;
 321
 322         mutex_lock(&info->dev->struct_mutex);
 323         if (drm_sman_owner_clean(&info->sman, (unsigned long) filp)) {
 324                 mutex_unlock(&info->dev->struct_mutex);
 325                 return;
 326         }
 327
 328         if (dev->driver->dma_quiescent) {
 329                 dev->driver->dma_quiescent(dev);
 330         }
 331
 332         drm_sman_owner_cleanup(&info->sman, (unsigned long) filp);
 333         mutex_unlock(&info->dev->struct_mutex);
 334         return;
 335 }
 336
 337
 338 /*
 339  * driver receives an interrupt if someone waiting, then hand it off.
 340  */
 341 irqreturn_t xgi_kern_isr(DRM_IRQ_ARGS)
 342 {
 343         struct drm_device *dev = (struct drm_device *) arg;
 344         struct xgi_info *info = dev->dev_private;
 345         const u32 irq_bits = le32_to_cpu(DRM_READ32(info->mmio_map,
 346                                         (0x2800
 347                                          + M2REG_AUTO_LINK_STATUS_ADDRESS)))
 348                 & (M2REG_ACTIVE_TIMER_INTERRUPT_MASK
 349                    | M2REG_ACTIVE_INTERRUPT_0_MASK
 350                    | M2REG_ACTIVE_INTERRUPT_2_MASK
 351                    | M2REG_ACTIVE_INTERRUPT_3_MASK);
 352
 353
 354         if (irq_bits != 0) {
 355                 DRM_WRITE32(info->mmio_map,
 356                             0x2800 + M2REG_AUTO_LINK_SETTING_ADDRESS,
 357                             cpu_to_le32(M2REG_AUTO_LINK_SETTING_COMMAND | irq_bits));
 358                 xgi_fence_handler(dev);
 359                 return IRQ_HANDLED;
 360         } else {
 361                 return IRQ_NONE;
 362         }
 363 }
 364
 365
 366 int xgi_driver_load(struct drm_device *dev, unsigned long flags)
 367 {
 368         struct xgi_info *info = drm_alloc(sizeof(*info), DRM_MEM_DRIVER);
 369         int err;
 370
 371         if (!info)
 372                 return -ENOMEM;
 373
 374         (void) memset(info, 0, sizeof(*info));
 375         dev->dev_private = info;
 376         info->dev = dev;
 377
 378         info->mmio.base = drm_get_resource_start(dev, 1);
 379         info->mmio.size = drm_get_resource_len(dev, 1);
 380
 381         DRM_INFO("mmio base: 0x%lx, size: 0x%x\n",
 382                  (unsigned long) info->mmio.base, info->mmio.size);
 383
 384
 385         if ((info->mmio.base == 0) || (info->mmio.size == 0)) {
 386                 DRM_ERROR("mmio appears to be wrong: 0x%lx 0x%x\n",
 387                           (unsigned long) info->mmio.base, info->mmio.size);
 388                 err = -EINVAL;
 389                 goto fail;
 390         }
 391
 392
 393         info->fb.base = drm_get_resource_start(dev, 0);
 394         info->fb.size = drm_get_resource_len(dev, 0);
 395
 396         DRM_INFO("fb   base: 0x%lx, size: 0x%x\n",
 397                  (unsigned long) info->fb.base, info->fb.size);
 398
 399
 400         err = drm_sman_init(&info->sman, 2, 12, 8);
 401         if (err) {
 402                 goto fail;
 403         }
 404
 405
 406         return 0;
 407
 408 fail:
 409         drm_free(info, sizeof(*info), DRM_MEM_DRIVER);
 410         return err;
 411 }
 412
 413 int xgi_driver_unload(struct drm_device *dev)
 414 {
 415         struct xgi_info * info = dev->dev_private;
 416
 417         drm_sman_takedown(&info->sman);
 418         drm_free(info, sizeof(*info), DRM_MEM_DRIVER);
 419         dev->dev_private = NULL;
 420
 421         return 0;
 422 }