SAFE public projects git trees. - safe/jmp/linux-2.6/blob - 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 pci_device_id pciidlist[] = {
  46         i915_PCI_IDS
  47 };
  48
  49 #if defined(CONFIG_DRM_I915_KMS)
  50 MODULE_DEVICE_TABLE(pci, pciidlist);
  51 #endif
  52
  53 static int i915_suspend(struct drm_device *dev, pm_message_t state)
  54 {
  55         struct drm_i915_private *dev_priv = dev->dev_private;
  56
  57         if (!dev || !dev_priv) {
  58                 printk(KERN_ERR "dev: %p, dev_priv: %p\n", dev, dev_priv);
  59                 printk(KERN_ERR "DRM not initialized, aborting suspend.\n");
  60                 return -ENODEV;
  61         }
  62
  63         if (state.event == PM_EVENT_PRETHAW)
  64                 return 0;
  65
  66         pci_save_state(dev->pdev);
  67
  68         i915_save_state(dev);
  69
  70         /* If KMS is active, we do the leavevt stuff here */
  71         if (drm_core_check_feature(dev, DRIVER_MODESET)) {
  72                 if (i915_gem_idle(dev))
  73                         dev_err(&dev->pdev->dev,
  74                                 "GEM idle failed, resume may fail\n");
  75                 drm_irq_uninstall(dev);
  76         }
  77
  78         intel_opregion_free(dev);
  79
  80         if (state.event == PM_EVENT_SUSPEND) {
  81                 /* Shut down the device */
  82                 pci_disable_device(dev->pdev);
  83                 pci_set_power_state(dev->pdev, PCI_D3hot);
  84         }
  85
  86         return 0;
  87 }
  88
  89 static int i915_resume(struct drm_device *dev)
  90 {
  91         struct drm_i915_private *dev_priv = dev->dev_private;
  92         int ret = 0;
  93
  94         pci_set_power_state(dev->pdev, PCI_D0);
  95         pci_restore_state(dev->pdev);
  96         if (pci_enable_device(dev->pdev))
  97                 return -1;
  98         pci_set_master(dev->pdev);
  99
 100         i915_restore_state(dev);
 101
 102         intel_opregion_init(dev);
 103
 104         /* KMS EnterVT equivalent */
 105         if (drm_core_check_feature(dev, DRIVER_MODESET)) {
 106                 mutex_lock(&dev->struct_mutex);
 107                 dev_priv->mm.suspended = 0;
 108
 109                 ret = i915_gem_init_ringbuffer(dev);
 110                 if (ret != 0)
 111                         ret = -1;
 112                 mutex_unlock(&dev->struct_mutex);
 113
 114                 drm_irq_install(dev);
 115         }
 116
 117         return ret;
 118 }
 119
 120 static struct vm_operations_struct i915_gem_vm_ops = {
 121         .fault = i915_gem_fault,
 122         .open = drm_gem_vm_open,
 123         .close = drm_gem_vm_close,
 124 };
 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         .open = i915_driver_open,
 136         .lastclose = i915_driver_lastclose,
 137         .preclose = i915_driver_preclose,
 138         .postclose = i915_driver_postclose,
 139         .suspend = i915_suspend,
 140         .resume = i915_resume,
 141         .device_is_agp = i915_driver_device_is_agp,
 142         .enable_vblank = i915_enable_vblank,
 143         .disable_vblank = i915_disable_vblank,
 144         .irq_preinstall = i915_driver_irq_preinstall,
 145         .irq_postinstall = i915_driver_irq_postinstall,
 146         .irq_uninstall = i915_driver_irq_uninstall,
 147         .irq_handler = i915_driver_irq_handler,
 148         .reclaim_buffers = drm_core_reclaim_buffers,
 149         .get_map_ofs = drm_core_get_map_ofs,
 150         .get_reg_ofs = drm_core_get_reg_ofs,
 151         .master_create = i915_master_create,
 152         .master_destroy = i915_master_destroy,
 153 #if defined(CONFIG_DEBUG_FS)
 154         .debugfs_init = i915_gem_debugfs_init,
 155         .debugfs_cleanup = i915_gem_debugfs_cleanup,
 156 #endif
 157         .gem_init_object = i915_gem_init_object,
 158         .gem_free_object = i915_gem_free_object,
 159         .gem_vm_ops = &i915_gem_vm_ops,
 160         .ioctls = i915_ioctls,
 161         .fops = {
 162                  .owner = THIS_MODULE,
 163                  .open = drm_open,
 164                  .release = drm_release,
 165                  .ioctl = drm_ioctl,
 166                  .mmap = drm_gem_mmap,
 167                  .poll = drm_poll,
 168                  .fasync = drm_fasync,
 169 #ifdef CONFIG_COMPAT
 170                  .compat_ioctl = i915_compat_ioctl,
 171 #endif
 172         },
 173
 174         .pci_driver = {
 175                  .name = DRIVER_NAME,
 176                  .id_table = pciidlist,
 177         },
 178
 179         .name = DRIVER_NAME,
 180         .desc = DRIVER_DESC,
 181         .date = DRIVER_DATE,
 182         .major = DRIVER_MAJOR,
 183         .minor = DRIVER_MINOR,
 184         .patchlevel = DRIVER_PATCHLEVEL,
 185 };
 186
 187 static int __init i915_init(void)
 188 {
 189         driver.num_ioctls = i915_max_ioctl;
 190
 191         /*
 192          * If CONFIG_DRM_I915_KMS is set, default to KMS unless
 193          * explicitly disabled with the module pararmeter.
 194          *
 195          * Otherwise, just follow the parameter (defaulting to off).
 196          *
 197          * Allow optional vga_text_mode_force boot option to override
 198          * the default behavior.
 199          */
 200 #if defined(CONFIG_DRM_I915_KMS)
 201         if (i915_modeset != 0)
 202                 driver.driver_features |= DRIVER_MODESET;
 203 #endif
 204         if (i915_modeset == 1)
 205                 driver.driver_features |= DRIVER_MODESET;
 206
 207 #ifdef CONFIG_VGA_CONSOLE
 208         if (vgacon_text_force() && i915_modeset == -1)
 209                 driver.driver_features &= ~DRIVER_MODESET;
 210 #endif
 211
 212         return drm_init(&driver);
 213 }
 214
 215 static void __exit i915_exit(void)
 216 {
 217         drm_exit(&driver);
 218 }
 219
 220 module_init(i915_init);
 221 module_exit(i915_exit);
 222
 223 MODULE_AUTHOR(DRIVER_AUTHOR);
 224 MODULE_DESCRIPTION(DRIVER_DESC);
 225 MODULE_LICENSE("GPL and additional rights");