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 unsigned int i915_powersave = 1;
  47 module_param_named(powersave, i915_powersave, int, 0400);
  48
  49 static struct drm_driver driver;
  50
  51 static struct pci_device_id pciidlist[] = {
  52         i915_PCI_IDS
  53 };
  54
  55 #if defined(CONFIG_DRM_I915_KMS)
  56 MODULE_DEVICE_TABLE(pci, pciidlist);
  57 #endif
  58
  59 static int i915_suspend(struct drm_device *dev, pm_message_t state)
  60 {
  61         struct drm_i915_private *dev_priv = dev->dev_private;
  62
  63         if (!dev || !dev_priv) {
  64                 DRM_ERROR("dev: %p, dev_priv: %p\n", dev, dev_priv);
  65                 DRM_ERROR("DRM not initialized, aborting suspend.\n");
  66                 return -ENODEV;
  67         }
  68
  69         if (state.event == PM_EVENT_PRETHAW)
  70                 return 0;
  71
  72         pci_save_state(dev->pdev);
  73
  74         /* If KMS is active, we do the leavevt stuff here */
  75         if (drm_core_check_feature(dev, DRIVER_MODESET)) {
  76                 if (i915_gem_idle(dev))
  77                         dev_err(&dev->pdev->dev,
  78                                 "GEM idle failed, resume may fail\n");
  79                 drm_irq_uninstall(dev);
  80         }
  81
  82         i915_save_state(dev);
  83
  84         intel_opregion_free(dev, 1);
  85
  86         if (state.event == PM_EVENT_SUSPEND) {
  87                 /* Shut down the device */
  88                 pci_disable_device(dev->pdev);
  89                 pci_set_power_state(dev->pdev, PCI_D3hot);
  90         }
  91
  92         return 0;
  93 }
  94
  95 static int i915_resume(struct drm_device *dev)
  96 {
  97         struct drm_i915_private *dev_priv = dev->dev_private;
  98         int ret = 0;
  99
 100         pci_set_power_state(dev->pdev, PCI_D0);
 101         pci_restore_state(dev->pdev);
 102         if (pci_enable_device(dev->pdev))
 103                 return -1;
 104         pci_set_master(dev->pdev);
 105
 106         i915_restore_state(dev);
 107
 108         intel_opregion_init(dev, 1);
 109
 110         /* KMS EnterVT equivalent */
 111         if (drm_core_check_feature(dev, DRIVER_MODESET)) {
 112                 mutex_lock(&dev->struct_mutex);
 113                 dev_priv->mm.suspended = 0;
 114
 115                 ret = i915_gem_init_ringbuffer(dev);
 116                 if (ret != 0)
 117                         ret = -1;
 118                 mutex_unlock(&dev->struct_mutex);
 119
 120                 drm_irq_install(dev);
 121         }
 122         if (drm_core_check_feature(dev, DRIVER_MODESET)) {
 123                 /* Resume the modeset for every activated CRTC */
 124                 drm_helper_resume_force_mode(dev);
 125         }
 126
 127         return ret;
 128 }
 129
 130 static int __devinit
 131 i915_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 132 {
 133         return drm_get_dev(pdev, ent, &driver);
 134 }
 135
 136 static void
 137 i915_pci_remove(struct pci_dev *pdev)
 138 {
 139         struct drm_device *dev = pci_get_drvdata(pdev);
 140
 141         drm_put_dev(dev);
 142 }
 143
 144 static int
 145 i915_pci_suspend(struct pci_dev *pdev, pm_message_t state)
 146 {
 147         struct drm_device *dev = pci_get_drvdata(pdev);
 148
 149         return i915_suspend(dev, state);
 150 }
 151
 152 static int
 153 i915_pci_resume(struct pci_dev *pdev)
 154 {
 155         struct drm_device *dev = pci_get_drvdata(pdev);
 156
 157         return i915_resume(dev);
 158 }
 159
 160 static struct vm_operations_struct i915_gem_vm_ops = {
 161         .fault = i915_gem_fault,
 162         .open = drm_gem_vm_open,
 163         .close = drm_gem_vm_close,
 164 };
 165
 166 static struct drm_driver driver = {
 167         /* don't use mtrr's here, the Xserver or user space app should
 168          * deal with them for intel hardware.
 169          */
 170         .driver_features =
 171             DRIVER_USE_AGP | DRIVER_REQUIRE_AGP | /* DRIVER_USE_MTRR |*/
 172             DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED | DRIVER_GEM,
 173         .load = i915_driver_load,
 174         .unload = i915_driver_unload,
 175         .open = i915_driver_open,
 176         .lastclose = i915_driver_lastclose,
 177         .preclose = i915_driver_preclose,
 178         .postclose = i915_driver_postclose,
 179         .suspend = i915_suspend,
 180         .resume = i915_resume,
 181         .device_is_agp = i915_driver_device_is_agp,
 182         .enable_vblank = i915_enable_vblank,
 183         .disable_vblank = i915_disable_vblank,
 184         .irq_preinstall = i915_driver_irq_preinstall,
 185         .irq_postinstall = i915_driver_irq_postinstall,
 186         .irq_uninstall = i915_driver_irq_uninstall,
 187         .irq_handler = i915_driver_irq_handler,
 188         .reclaim_buffers = drm_core_reclaim_buffers,
 189         .get_map_ofs = drm_core_get_map_ofs,
 190         .get_reg_ofs = drm_core_get_reg_ofs,
 191         .master_create = i915_master_create,
 192         .master_destroy = i915_master_destroy,
 193 #if defined(CONFIG_DEBUG_FS)
 194         .debugfs_init = i915_debugfs_init,
 195         .debugfs_cleanup = i915_debugfs_cleanup,
 196 #endif
 197         .gem_init_object = i915_gem_init_object,
 198         .gem_free_object = i915_gem_free_object,
 199         .gem_vm_ops = &i915_gem_vm_ops,
 200         .ioctls = i915_ioctls,
 201         .fops = {
 202                  .owner = THIS_MODULE,
 203                  .open = drm_open,
 204                  .release = drm_release,
 205                  .ioctl = drm_ioctl,
 206                  .mmap = drm_gem_mmap,
 207                  .poll = drm_poll,
 208                  .fasync = drm_fasync,
 209 #ifdef CONFIG_COMPAT
 210                  .compat_ioctl = i915_compat_ioctl,
 211 #endif
 212         },
 213
 214         .pci_driver = {
 215                  .name = DRIVER_NAME,
 216                  .id_table = pciidlist,
 217                  .probe = i915_pci_probe,
 218                  .remove = i915_pci_remove,
 219 #ifdef CONFIG_PM
 220                  .resume = i915_pci_resume,
 221                  .suspend = i915_pci_suspend,
 222 #endif
 223         },
 224
 225         .name = DRIVER_NAME,
 226         .desc = DRIVER_DESC,
 227         .date = DRIVER_DATE,
 228         .major = DRIVER_MAJOR,
 229         .minor = DRIVER_MINOR,
 230         .patchlevel = DRIVER_PATCHLEVEL,
 231 };
 232
 233 static int __init i915_init(void)
 234 {
 235         driver.num_ioctls = i915_max_ioctl;
 236
 237         /*
 238          * If CONFIG_DRM_I915_KMS is set, default to KMS unless
 239          * explicitly disabled with the module pararmeter.
 240          *
 241          * Otherwise, just follow the parameter (defaulting to off).
 242          *
 243          * Allow optional vga_text_mode_force boot option to override
 244          * the default behavior.
 245          */
 246 #if defined(CONFIG_DRM_I915_KMS)
 247         if (i915_modeset != 0)
 248                 driver.driver_features |= DRIVER_MODESET;
 249 #endif
 250         if (i915_modeset == 1)
 251                 driver.driver_features |= DRIVER_MODESET;
 252
 253 #ifdef CONFIG_VGA_CONSOLE
 254         if (vgacon_text_force() && i915_modeset == -1)
 255                 driver.driver_features &= ~DRIVER_MODESET;
 256 #endif
 257
 258         return drm_init(&driver);
 259 }
 260
 261 static void __exit i915_exit(void)
 262 {
 263         drm_exit(&driver);
 264 }
 265
 266 module_init(i915_init);
 267 module_exit(i915_exit);
 268
 269 MODULE_AUTHOR(DRIVER_AUTHOR);
 270 MODULE_DESCRIPTION(DRIVER_DESC);
 271 MODULE_LICENSE("GPL and additional rights");