linux-core/i915_drv.c

   1 /* i915_drv.c -- i830,i845,i855,i865,i915 driver -*- linux-c -*-
   2  */
   3 /*
   4  *
   5  * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
   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
  10  * "Software"), to deal in the Software without restriction, including
  11  * without limitation the rights to use, copy, modify, merge, publish,
  12  * distribute, sub license, and/or sell copies of the Software, and to
  13  * permit persons to whom the Software is furnished to do so, subject to
  14  * the following conditions:
  15  *
  16  * The above copyright notice and this permission notice (including the
  17  * next paragraph) shall be included in all copies or substantial portions
  18  * of the Software.
  19  *
  20  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  21  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  22  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  23  * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
  24  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  25  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  26  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  27  *
  28  */
  29
  30 #include "drmP.h"
  31 #include "drm.h"
  32 #include "i915_drm.h"
  33 #include "intel_drv.h"
  34 #include "i915_drv.h"
  35
  36 #include "drm_pciids.h"
  37
  38 static struct pci_device_id pciidlist[] = {
  39         i915_PCI_IDS
  40 };
  41
  42 unsigned int i915_modeset = 0;
  43 module_param_named(modeset, i915_modeset, int, 0400);
  44
  45 unsigned int i915_fbpercrtc = 0;
  46 module_param_named(fbpercrtc, i915_fbpercrtc, int, 0400);
  47
  48 unsigned int i915_rightof = 1;
  49 module_param_named(i915_rightof, i915_rightof, int, 0400);
  50
  51 #if defined(I915_HAVE_FENCE) && defined(I915_TTM)
  52 extern struct drm_fence_driver i915_fence_driver;
  53 #endif
  54
  55 #if defined(I915_HAVE_BUFFER) && defined(I915_TTM)
  56
  57 static uint32_t i915_mem_prios[] = {DRM_BO_MEM_VRAM, DRM_BO_MEM_TT, DRM_BO_MEM_LOCAL};
  58 static uint32_t i915_busy_prios[] = {DRM_BO_MEM_TT, DRM_BO_MEM_VRAM, DRM_BO_MEM_LOCAL};
  59
  60 static struct drm_bo_driver i915_bo_driver = {
  61         .mem_type_prio = i915_mem_prios,
  62         .mem_busy_prio = i915_busy_prios,
  63         .num_mem_type_prio = sizeof(i915_mem_prios)/sizeof(uint32_t),
  64         .num_mem_busy_prio = sizeof(i915_busy_prios)/sizeof(uint32_t),
  65         .create_ttm_backend_entry = i915_create_ttm_backend_entry,
  66         .fence_type = i915_fence_type,
  67         .invalidate_caches = i915_invalidate_caches,
  68         .init_mem_type = i915_init_mem_type,
  69         .evict_flags = i915_evict_flags,
  70         .move = i915_move,
  71         .ttm_cache_flush = i915_flush_ttm,
  72         .command_stream_barrier = NULL,
  73 };
  74 #endif /* ttm */
  75
  76 static int i915_suspend(struct drm_device *dev, pm_message_t state)
  77 {
  78         struct drm_i915_private *dev_priv = dev->dev_private;
  79
  80         if (!dev || !dev_priv) {
  81                 printk(KERN_ERR "dev: %p, dev_priv: %p\n", dev, dev_priv);
  82                 printk(KERN_ERR "DRM not initialized, aborting suspend.\n");
  83                 return -ENODEV;
  84         }
  85
  86         if (state.event == PM_EVENT_PRETHAW)
  87                 return 0;
  88
  89         pci_save_state(dev->pdev);
  90
  91         i915_save_state(dev);
  92
  93 #if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,25)
  94         intel_opregion_free(dev);
  95 #endif
  96
  97         if (state.event == PM_EVENT_SUSPEND) {
  98                 /* Shut down the device */
  99                 pci_disable_device(dev->pdev);
 100                 pci_set_power_state(dev->pdev, PCI_D3hot);
 101         }
 102
 103         return 0;
 104 }
 105
 106 static int i915_resume(struct drm_device *dev)
 107 {
 108         pci_set_power_state(dev->pdev, PCI_D0);
 109         pci_restore_state(dev->pdev);
 110         if (pci_enable_device(dev->pdev))
 111                 return -1;
 112         pci_set_master(dev->pdev);
 113
 114         i915_restore_state(dev);
 115
 116 #if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,25)
 117         intel_opregion_init(dev);
 118 #endif
 119
 120         return 0;
 121 }
 122
 123 static int probe(struct pci_dev *pdev, const struct pci_device_id *ent);
 124 static void remove(struct pci_dev *pdev);
 125
 126 static struct drm_driver driver = {
 127         /* don't use mtrr's here, the Xserver or user space app should
 128          * deal with them for intel hardware.
 129          */
 130         .driver_features =
 131             DRIVER_USE_AGP | DRIVER_REQUIRE_AGP | /* DRIVER_USE_MTRR | */
 132             DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED | DRIVER_GEM,
 133         .load = i915_driver_load,
 134         .unload = i915_driver_unload,
 135         .firstopen = i915_driver_firstopen,
 136         .open = i915_driver_open,
 137         .lastclose = i915_driver_lastclose,
 138         .preclose = i915_driver_preclose,
 139         .postclose = i915_driver_postclose,
 140         .suspend = i915_suspend,
 141         .resume = i915_resume,
 142         .device_is_agp = i915_driver_device_is_agp,
 143         .get_vblank_counter = i915_get_vblank_counter,
 144         .enable_vblank = i915_enable_vblank,
 145         .disable_vblank = i915_disable_vblank,
 146         .irq_preinstall = i915_driver_irq_preinstall,
 147         .irq_postinstall = i915_driver_irq_postinstall,
 148         .irq_uninstall = i915_driver_irq_uninstall,
 149         .irq_handler = i915_driver_irq_handler,
 150         .reclaim_buffers = drm_core_reclaim_buffers,
 151         .get_map_ofs = drm_core_get_map_ofs,
 152         .get_reg_ofs = drm_core_get_reg_ofs,
 153         .master_create = i915_master_create,
 154         .master_destroy = i915_master_destroy,
 155         .proc_init = i915_gem_proc_init,
 156         .proc_cleanup = i915_gem_proc_cleanup,
 157         .ioctls = i915_ioctls,
 158         .gem_init_object = i915_gem_init_object,
 159         .gem_free_object = i915_gem_free_object,
 160         .fops = {
 161                 .owner = THIS_MODULE,
 162                 .open = drm_open,
 163                 .release = drm_release,
 164                 .ioctl = drm_ioctl,
 165                 .mmap = drm_mmap,
 166                 .poll = drm_poll,
 167                 .fasync = drm_fasync,
 168 #if defined(CONFIG_COMPAT) && LINUX_VERSION_CODE > KERNEL_VERSION(2,6,9)
 169                 .compat_ioctl = i915_compat_ioctl,
 170 #endif
 171                 },
 172         .pci_driver = {
 173                 .name = DRIVER_NAME,
 174                 .id_table = pciidlist,
 175                 .probe = probe,
 176                 .remove = remove,
 177                 },
 178 #if defined(I915_HAVE_FENCE) && defined(I915_TTM)
 179         .fence_driver = &i915_fence_driver,
 180 #endif
 181 #if defined(I915_HAVE_BUFFER) && defined(I915_TTM)
 182         .bo_driver = &i915_bo_driver,
 183 #endif
 184         .name = DRIVER_NAME,
 185         .desc = DRIVER_DESC,
 186         .date = DRIVER_DATE,
 187         .major = DRIVER_MAJOR,
 188         .minor = DRIVER_MINOR,
 189         .patchlevel = DRIVER_PATCHLEVEL,
 190 };
 191
 192 static int probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 193 {
 194         int ret;
 195
 196         /* On the 945G/GM, the chipset reports the MSI capability on the
 197          * integrated graphics even though the support isn't actually there
 198          * according to the published specs.  It doesn't appear to function
 199          * correctly in testing on 945G.
 200          * This may be a side effect of MSI having been made available for PEG
 201          * and the registers being closely associated.
 202          */
 203         if (pdev->device != 0x2772 && pdev->device != 0x27A2)
 204                 (void )pci_enable_msi(pdev);
 205
 206         ret = drm_get_dev(pdev, ent, &driver);
 207         if (ret && pdev->msi_enabled)
 208                 pci_disable_msi(pdev);
 209         return ret;
 210 }
 211 static void remove(struct pci_dev *pdev)
 212 {
 213         drm_cleanup_pci(pdev);
 214         if (pdev->msi_enabled)
 215                 pci_disable_msi(pdev);
 216 }
 217
 218 static int __init i915_init(void)
 219 {
 220         driver.num_ioctls = i915_max_ioctl;
 221         if (i915_modeset == 1)
 222                 driver.driver_features |= DRIVER_MODESET;
 223
 224         return drm_init(&driver, pciidlist);
 225 }
 226
 227 static void __exit i915_exit(void)
 228 {
 229         drm_exit(&driver);
 230 }
 231
 232 module_init(i915_init);
 233 module_exit(i915_exit);
 234
 235 MODULE_AUTHOR(DRIVER_AUTHOR);
 236 MODULE_DESCRIPTION(DRIVER_DESC);
 237 MODULE_LICENSE("GPL and additional rights");