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 "drmP.h"
  31 #include "drm.h"
  32 #include "i915_drm.h"
  33 #include "i915_drv.h"
  34
  35 #include "drm_pciids.h"
  36
  37 static struct pci_device_id pciidlist[] = {
  38         i915_PCI_IDS
  39 };
  40
  41 static int i915_suspend(struct drm_device *dev, pm_message_t state)
  42 {
  43         struct drm_i915_private *dev_priv = dev->dev_private;
  44
  45         if (!dev || !dev_priv) {
  46                 printk(KERN_ERR "dev: %p, dev_priv: %p\n", dev, dev_priv);
  47                 printk(KERN_ERR "DRM not initialized, aborting suspend.\n");
  48                 return -ENODEV;
  49         }
  50
  51         if (state.event == PM_EVENT_PRETHAW)
  52                 return 0;
  53
  54         pci_save_state(dev->pdev);
  55
  56         i915_save_state(dev);
  57
  58         intel_opregion_free(dev);
  59
  60         if (state.event == PM_EVENT_SUSPEND) {
  61                 /* Shut down the device */
  62                 pci_disable_device(dev->pdev);
  63                 pci_set_power_state(dev->pdev, PCI_D3hot);
  64         }
  65
  66         return 0;
  67 }
  68
  69 static int i915_resume(struct drm_device *dev)
  70 {
  71         pci_set_power_state(dev->pdev, PCI_D0);
  72         pci_restore_state(dev->pdev);
  73         if (pci_enable_device(dev->pdev))
  74                 return -1;
  75         pci_set_master(dev->pdev);
  76
  77         i915_restore_state(dev);
  78
  79         intel_opregion_init(dev);
  80
  81         return 0;
  82 }
  83
  84 static struct drm_driver driver = {
  85         /* don't use mtrr's here, the Xserver or user space app should
  86          * deal with them for intel hardware.
  87          */
  88         .driver_features = DRIVER_USE_AGP | DRIVER_REQUIRE_AGP |
  89                 DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED,
  90         .load = i915_driver_load,
  91         .unload = i915_driver_unload,
  92         .lastclose = i915_driver_lastclose,
  93         .preclose = i915_driver_preclose,
  94         .suspend = i915_suspend,
  95         .resume = i915_resume,
  96         .device_is_agp = i915_driver_device_is_agp,
  97         .get_vblank_counter = i915_get_vblank_counter,
  98         .enable_vblank = i915_enable_vblank,
  99         .disable_vblank = i915_disable_vblank,
 100         .irq_preinstall = i915_driver_irq_preinstall,
 101         .irq_postinstall = i915_driver_irq_postinstall,
 102         .irq_uninstall = i915_driver_irq_uninstall,
 103         .irq_handler = i915_driver_irq_handler,
 104         .reclaim_buffers = drm_core_reclaim_buffers,
 105         .get_map_ofs = drm_core_get_map_ofs,
 106         .get_reg_ofs = drm_core_get_reg_ofs,
 107         .ioctls = i915_ioctls,
 108         .fops = {
 109                  .owner = THIS_MODULE,
 110                  .open = drm_open,
 111                  .release = drm_release,
 112                  .ioctl = drm_ioctl,
 113                  .mmap = drm_mmap,
 114                  .poll = drm_poll,
 115                  .fasync = drm_fasync,
 116 #ifdef CONFIG_COMPAT
 117                  .compat_ioctl = i915_compat_ioctl,
 118 #endif
 119         },
 120
 121         .pci_driver = {
 122                  .name = DRIVER_NAME,
 123                  .id_table = pciidlist,
 124         },
 125
 126         .name = DRIVER_NAME,
 127         .desc = DRIVER_DESC,
 128         .date = DRIVER_DATE,
 129         .major = DRIVER_MAJOR,
 130         .minor = DRIVER_MINOR,
 131         .patchlevel = DRIVER_PATCHLEVEL,
 132 };
 133
 134 static int __init i915_init(void)
 135 {
 136         driver.num_ioctls = i915_max_ioctl;
 137         return drm_init(&driver);
 138 }
 139
 140 static void __exit i915_exit(void)
 141 {
 142         drm_exit(&driver);
 143 }
 144
 145 module_init(i915_init);
 146 module_exit(i915_exit);
 147
 148 MODULE_AUTHOR(DRIVER_AUTHOR);
 149 MODULE_DESCRIPTION(DRIVER_DESC);
 150 MODULE_LICENSE("GPL and additional rights");