drivers/gpu/drm/i915/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 <linux/device.h>
  31 #include "drmP.h"
  32 #include "drm.h"
  33 #include "i915_drm.h"
  34 #include "i915_drv.h"
  35
  36 #include "drm_pciids.h"
  37 #include <linux/console.h>
  38
  39 static unsigned int i915_modeset = -1;
  40 module_param_named(modeset, i915_modeset, int, 0400);
  41
  42 unsigned int i915_fbpercrtc = 0;
  43 module_param_named(fbpercrtc, i915_fbpercrtc, int, 0400);
  44
  45 static struct drm_driver driver;
  46
  47 static struct pci_device_id pciidlist[] = {
  48         i915_PCI_IDS
  49 };
  50
  51 #if defined(CONFIG_DRM_I915_KMS)
  52 MODULE_DEVICE_TABLE(pci, pciidlist);
  53 #endif
  54
  55 static int i915_suspend(struct drm_device *dev, pm_message_t state)
  56 {
  57         struct drm_i915_private *dev_priv = dev->dev_private;
  58
  59         if (!dev || !dev_priv) {
  60                 printk(KERN_ERR "dev: %p, dev_priv: %p\n", dev, dev_priv);
  61                 printk(KERN_ERR "DRM not initialized, aborting suspend.\n");
  62                 return -ENODEV;
  63         }
  64
  65         if (state.event == PM_EVENT_PRETHAW)
  66                 return 0;
  67
  68         pci_save_state(dev->pdev);
  69
  70         i915_save_state(dev);
  71
  72         /* If KMS is active, we do the leavevt stuff here */
  73         if (drm_core_check_feature(dev, DRIVER_MODESET)) {
  74                 if (i915_gem_idle(dev))
  75                         dev_err(&dev->pdev->dev,
  76                                 "GEM idle failed, resume may fail\n");
  77                 drm_irq_uninstall(dev);
  78         }
  79
  80         intel_opregion_free(dev);
  81
  82         if (state.event == PM_EVENT_SUSPEND) {
  83                 /* Shut down the device */
  84                 pci_disable_device(dev->pdev);
  85                 pci_set_power_state(dev->pdev, PCI_D3hot);
  86         }
  87
  88         return 0;
  89 }
  90
  91 static int i915_resume(struct drm_device *dev)
  92 {
  93         struct drm_i915_private *dev_priv = dev->dev_private;
  94         int ret = 0;
  95
  96         pci_set_power_state(dev->pdev, PCI_D0);
  97         pci_restore_state(dev->pdev);
  98         if (pci_enable_device(dev->pdev))
  99                 return -1;
 100         pci_set_master(dev->pdev);
 101
 102         i915_restore_state(dev);
 103
 104         intel_opregion_init(dev, 1);
 105
 106         /* KMS EnterVT equivalent */
 107         if (drm_core_check_feature(dev, DRIVER_MODESET)) {
 108                 mutex_lock(&dev->struct_mutex);
 109                 dev_priv->mm.suspended = 0;
 110
 111                 ret = i915_gem_init_ringbuffer(dev);
 112                 if (ret != 0)
 113                         ret = -1;
 114                 mutex_unlock(&dev->struct_mutex);
 115
 116                 drm_irq_install(dev);
 117         }
 118
 119         return ret;
 120 }
 121
 122 static int __devinit
 123 i915_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 124 {
 125         return drm_get_dev(pdev, ent, &driver);
 126 }
 127
 128 static void
 129 i915_pci_remove(struct pci_dev *pdev)
 130 {
 131         struct drm_device *dev = pci_get_drvdata(pdev);
 132
 133         drm_put_dev(dev);
 134 }
 135
 136 static int
 137 i915_pci_suspend(struct pci_dev *pdev, pm_message_t state)
 138 {
 139         struct drm_device *dev = pci_get_drvdata(pdev);
 140
 141         return i915_suspend(dev, state);
 142 }
 143
 144 static int
 145 i915_pci_resume(struct pci_dev *pdev)
 146 {
 147         struct drm_device *dev = pci_get_drvdata(pdev);
 148
 149         return i915_resume(dev);
 150 }
 151
 152 static struct vm_operations_struct i915_gem_vm_ops = {
 153         .fault = i915_gem_fault,
 154         .open = drm_gem_vm_open,
 155         .close = drm_gem_vm_close,
 156 };
 157
 158 static struct drm_driver driver = {
 159         /* don't use mtrr's here, the Xserver or user space app should
 160          * deal with them for intel hardware.
 161          */
 162         .driver_features =
 163             DRIVER_USE_AGP | DRIVER_REQUIRE_AGP | /* DRIVER_USE_MTRR |*/
 164             DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED | DRIVER_GEM,
 165         .load = i915_driver_load,
 166         .unload = i915_driver_unload,
 167         .open = i915_driver_open,
 168         .lastclose = i915_driver_lastclose,
 169         .preclose = i915_driver_preclose,
 170         .postclose = i915_driver_postclose,
 171         .suspend = i915_suspend,
 172         .resume = i915_resume,
 173         .device_is_agp = i915_driver_device_is_agp,
 174         .enable_vblank = i915_enable_vblank,
 175         .disable_vblank = i915_disable_vblank,
 176         .irq_preinstall = i915_driver_irq_preinstall,
 177         .irq_postinstall = i915_driver_irq_postinstall,
 178         .irq_uninstall = i915_driver_irq_uninstall,
 179         .irq_handler = i915_driver_irq_handler,
 180         .reclaim_buffers = drm_core_reclaim_buffers,
 181         .get_map_ofs = drm_core_get_map_ofs,
 182         .get_reg_ofs = drm_core_get_reg_ofs,
 183         .master_create = i915_master_create,
 184         .master_destroy = i915_master_destroy,
 185 #if defined(CONFIG_DEBUG_FS)
 186         .debugfs_init = i915_gem_debugfs_init,
 187         .debugfs_cleanup = i915_gem_debugfs_cleanup,
 188 #endif
 189         .gem_init_object = i915_gem_init_object,
 190         .gem_free_object = i915_gem_free_object,
 191         .gem_vm_ops = &i915_gem_vm_ops,
 192         .ioctls = i915_ioctls,
 193         .fops = {
 194                  .owner = THIS_MODULE,
 195                  .open = drm_open,
 196                  .release = drm_release,
 197                  .ioctl = drm_ioctl,
 198                  .mmap = drm_gem_mmap,
 199                  .poll = drm_poll,
 200                  .fasync = drm_fasync,
 201 #ifdef CONFIG_COMPAT
 202                  .compat_ioctl = i915_compat_ioctl,
 203 #endif
 204         },
 205
 206         .pci_driver = {
 207                  .name = DRIVER_NAME,
 208                  .id_table = pciidlist,
 209                  .probe = i915_pci_probe,
 210                  .remove = i915_pci_remove,
 211 #ifdef CONFIG_PM
 212                  .resume = i915_pci_resume,
 213                  .suspend = i915_pci_suspend,
 214 #endif
 215         },
 216
 217         .name = DRIVER_NAME,
 218         .desc = DRIVER_DESC,
 219         .date = DRIVER_DATE,
 220         .major = DRIVER_MAJOR,
 221         .minor = DRIVER_MINOR,
 222         .patchlevel = DRIVER_PATCHLEVEL,
 223 };
 224
 225 static int __init i915_init(void)
 226 {
 227         driver.num_ioctls = i915_max_ioctl;
 228
 229         /*
 230          * If CONFIG_DRM_I915_KMS is set, default to KMS unless
 231          * explicitly disabled with the module pararmeter.
 232          *
 233          * Otherwise, just follow the parameter (defaulting to off).
 234          *
 235          * Allow optional vga_text_mode_force boot option to override
 236          * the default behavior.
 237          */
 238 #if defined(CONFIG_DRM_I915_KMS)
 239         if (i915_modeset != 0)
 240                 driver.driver_features |= DRIVER_MODESET;
 241 #endif
 242         if (i915_modeset == 1)
 243                 driver.driver_features |= DRIVER_MODESET;
 244
 245 #ifdef CONFIG_VGA_CONSOLE
 246         if (vgacon_text_force() && i915_modeset == -1)
 247                 driver.driver_features &= ~DRIVER_MODESET;
 248 #endif
 249
 250         return drm_init(&driver);
 251 }
 252
 253 static void __exit i915_exit(void)
 254 {
 255         drm_exit(&driver);
 256 }
 257
 258 module_init(i915_init);
 259 module_exit(i915_exit);
 260
 261 MODULE_AUTHOR(DRIVER_AUTHOR);
 262 MODULE_DESCRIPTION(DRIVER_DESC);
 263 MODULE_LICENSE("GPL and additional rights");