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 #include "drm_crtc_helper.h"
  39
  40 static unsigned int i915_modeset = -1;
  41 module_param_named(modeset, i915_modeset, int, 0400);
  42
  43 unsigned int i915_fbpercrtc = 0;
  44 module_param_named(fbpercrtc, i915_fbpercrtc, int, 0400);
  45
  46 static struct drm_driver driver;
  47
  48 static struct pci_device_id pciidlist[] = {
  49         i915_PCI_IDS
  50 };
  51
  52 #if defined(CONFIG_DRM_I915_KMS)
  53 MODULE_DEVICE_TABLE(pci, pciidlist);
  54 #endif
  55
  56 static int i915_suspend(struct drm_device *dev, pm_message_t state)
  57 {
  58         struct drm_i915_private *dev_priv = dev->dev_private;
  59
  60         if (!dev || !dev_priv) {
  61                 DRM_ERROR("dev: %p, dev_priv: %p\n", dev, dev_priv);
  62                 DRM_ERROR("DRM not initialized, aborting suspend.\n");
  63                 return -ENODEV;
  64         }
  65
  66         if (state.event == PM_EVENT_PRETHAW)
  67                 return 0;
  68
  69         pci_save_state(dev->pdev);
  70
  71         /* If KMS is active, we do the leavevt stuff here */
  72         if (drm_core_check_feature(dev, DRIVER_MODESET)) {
  73                 if (i915_gem_idle(dev))
  74                         dev_err(&dev->pdev->dev,
  75                                 "GEM idle failed, resume may fail\n");
  76                 drm_irq_uninstall(dev);
  77         }
  78
  79         i915_save_state(dev);
  80
  81         intel_opregion_free(dev, 1);
  82
  83         if (state.event == PM_EVENT_SUSPEND) {
  84                 /* Shut down the device */
  85                 pci_disable_device(dev->pdev);
  86                 pci_set_power_state(dev->pdev, PCI_D3hot);
  87         }
  88
  89         return 0;
  90 }
  91
  92 static int i915_resume(struct drm_device *dev)
  93 {
  94         struct drm_i915_private *dev_priv = dev->dev_private;
  95         int ret = 0;
  96
  97         pci_set_power_state(dev->pdev, PCI_D0);
  98         pci_restore_state(dev->pdev);
  99         if (pci_enable_device(dev->pdev))
 100                 return -1;
 101         pci_set_master(dev->pdev);
 102
 103         i915_restore_state(dev);
 104
 105         intel_opregion_init(dev, 1);
 106
 107         /* KMS EnterVT equivalent */
 108         if (drm_core_check_feature(dev, DRIVER_MODESET)) {
 109                 mutex_lock(&dev->struct_mutex);
 110                 dev_priv->mm.suspended = 0;
 111
 112                 ret = i915_gem_init_ringbuffer(dev);
 113                 if (ret != 0)
 114                         ret = -1;
 115                 mutex_unlock(&dev->struct_mutex);
 116
 117                 drm_irq_install(dev);
 118         }
 119         if (drm_core_check_feature(dev, DRIVER_MODESET)) {
 120                 /* Resume the modeset for every activated CRTC */
 121                 drm_helper_resume_force_mode(dev);
 122         }
 123
 124         return ret;
 125 }
 126
 127 static int __devinit
 128 i915_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 129 {
 130         return drm_get_dev(pdev, ent, &driver);
 131 }
 132
 133 static void
 134 i915_pci_remove(struct pci_dev *pdev)
 135 {
 136         struct drm_device *dev = pci_get_drvdata(pdev);
 137
 138         drm_put_dev(dev);
 139 }
 140
 141 static int
 142 i915_pci_suspend(struct pci_dev *pdev, pm_message_t state)
 143 {
 144         struct drm_device *dev = pci_get_drvdata(pdev);
 145
 146         return i915_suspend(dev, state);
 147 }
 148
 149 static int
 150 i915_pci_resume(struct pci_dev *pdev)
 151 {
 152         struct drm_device *dev = pci_get_drvdata(pdev);
 153
 154         return i915_resume(dev);
 155 }
 156
 157 static struct vm_operations_struct i915_gem_vm_ops = {
 158         .fault = i915_gem_fault,
 159         .open = drm_gem_vm_open,
 160         .close = drm_gem_vm_close,
 161 };
 162
 163 static struct drm_driver driver = {
 164         /* don't use mtrr's here, the Xserver or user space app should
 165          * deal with them for intel hardware.
 166          */
 167         .driver_features =
 168             DRIVER_USE_AGP | DRIVER_REQUIRE_AGP | /* DRIVER_USE_MTRR |*/
 169             DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED | DRIVER_GEM,
 170         .load = i915_driver_load,
 171         .unload = i915_driver_unload,
 172         .open = i915_driver_open,
 173         .lastclose = i915_driver_lastclose,
 174         .preclose = i915_driver_preclose,
 175         .postclose = i915_driver_postclose,
 176         .suspend = i915_suspend,
 177         .resume = i915_resume,
 178         .device_is_agp = i915_driver_device_is_agp,
 179         .enable_vblank = i915_enable_vblank,
 180         .disable_vblank = i915_disable_vblank,
 181         .irq_preinstall = i915_driver_irq_preinstall,
 182         .irq_postinstall = i915_driver_irq_postinstall,
 183         .irq_uninstall = i915_driver_irq_uninstall,
 184         .irq_handler = i915_driver_irq_handler,
 185         .reclaim_buffers = drm_core_reclaim_buffers,
 186         .get_map_ofs = drm_core_get_map_ofs,
 187         .get_reg_ofs = drm_core_get_reg_ofs,
 188         .master_create = i915_master_create,
 189         .master_destroy = i915_master_destroy,
 190 #if defined(CONFIG_DEBUG_FS)
 191         .debugfs_init = i915_gem_debugfs_init,
 192         .debugfs_cleanup = i915_gem_debugfs_cleanup,
 193 #endif
 194         .gem_init_object = i915_gem_init_object,
 195         .gem_free_object = i915_gem_free_object,
 196         .gem_vm_ops = &i915_gem_vm_ops,
 197         .ioctls = i915_ioctls,
 198         .fops = {
 199                  .owner = THIS_MODULE,
 200                  .open = drm_open,
 201                  .release = drm_release,
 202                  .ioctl = drm_ioctl,
 203                  .mmap = drm_gem_mmap,
 204                  .poll = drm_poll,
 205                  .fasync = drm_fasync,
 206 #ifdef CONFIG_COMPAT
 207                  .compat_ioctl = i915_compat_ioctl,
 208 #endif
 209         },
 210
 211         .pci_driver = {
 212                  .name = DRIVER_NAME,
 213                  .id_table = pciidlist,
 214                  .probe = i915_pci_probe,
 215                  .remove = i915_pci_remove,
 216 #ifdef CONFIG_PM
 217                  .resume = i915_pci_resume,
 218                  .suspend = i915_pci_suspend,
 219 #endif
 220         },
 221
 222         .name = DRIVER_NAME,
 223         .desc = DRIVER_DESC,
 224         .date = DRIVER_DATE,
 225         .major = DRIVER_MAJOR,
 226         .minor = DRIVER_MINOR,
 227         .patchlevel = DRIVER_PATCHLEVEL,
 228 };
 229
 230 static int __init i915_init(void)
 231 {
 232         driver.num_ioctls = i915_max_ioctl;
 233
 234         /*
 235          * If CONFIG_DRM_I915_KMS is set, default to KMS unless
 236          * explicitly disabled with the module pararmeter.
 237          *
 238          * Otherwise, just follow the parameter (defaulting to off).
 239          *
 240          * Allow optional vga_text_mode_force boot option to override
 241          * the default behavior.
 242          */
 243 #if defined(CONFIG_DRM_I915_KMS)
 244         if (i915_modeset != 0)
 245                 driver.driver_features |= DRIVER_MODESET;
 246 #endif
 247         if (i915_modeset == 1)
 248                 driver.driver_features |= DRIVER_MODESET;
 249
 250 #ifdef CONFIG_VGA_CONSOLE
 251         if (vgacon_text_force() && i915_modeset == -1)
 252                 driver.driver_features &= ~DRIVER_MODESET;
 253 #endif
 254
 255         return drm_init(&driver);
 256 }
 257
 258 static void __exit i915_exit(void)
 259 {
 260         drm_exit(&driver);
 261 }
 262
 263 module_init(i915_init);
 264 module_exit(i915_exit);
 265
 266 MODULE_AUTHOR(DRIVER_AUTHOR);
 267 MODULE_DESCRIPTION(DRIVER_DESC);
 268 MODULE_LICENSE("GPL and additional rights");