drivers/gpu/drm/qxl/qxl_drv.c

   1 /* vim: set ts=8 sw=8 tw=78 ai noexpandtab */
   2 /* qxl_drv.c -- QXL driver -*- linux-c -*-
   3  *
   4  * Copyright 2011 Red Hat, Inc.
   5  * All Rights Reserved.
   6  *
   7  * Permission is hereby granted, free of charge, to any person obtaining a
   8  * copy of this software and associated documentation files (the "Software"),
   9  * to deal in the Software without restriction, including without limitation
  10  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  11  * and/or sell copies of the Software, and to permit persons to whom the
  12  * Software is furnished to do so, subject to the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the next
  15  * paragraph) shall be included in all copies or substantial portions of the
  16  * Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  19  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  20  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  21  * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
  22  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  23  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  24  * OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  * Authors:
  27  *    Dave Airlie <airlie@redhat.com>
  28  *    Alon Levy <alevy@redhat.com>
  29  */
  30
  31 #include <linux/module.h>
  32 #include <linux/console.h>
  33
  34 #include "drmP.h"
  35 #include "drm/drm.h"
  36 #include "drm_crtc_helper.h"
  37 #include "qxl_drv.h"
  38 #include "qxl_object.h"
  39
  40 extern int qxl_max_ioctls;
  41 static const struct pci_device_id pciidlist[] = {
  42         { 0x1b36, 0x100, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8,
  43           0xffff00, 0 },
  44         { 0x1b36, 0x100, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_OTHER << 8,
  45           0xffff00, 0 },
  46         { 0, 0, 0 },
  47 };
  48 MODULE_DEVICE_TABLE(pci, pciidlist);
  49
  50 static int qxl_modeset = -1;
  51 int qxl_num_crtc = 4;
  52
  53 MODULE_PARM_DESC(modeset, "Disable/Enable modesetting");
  54 module_param_named(modeset, qxl_modeset, int, 0400);
  55
  56 MODULE_PARM_DESC(num_heads, "Number of virtual crtcs to expose (default 4)");
  57 module_param_named(num_heads, qxl_num_crtc, int, 0400);
  58
  59 static struct drm_driver qxl_driver;
  60 static struct pci_driver qxl_pci_driver;
  61
  62 static int
  63 qxl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
  64 {
  65         struct drm_device *drm;
  66         struct qxl_device *qdev;
  67         int ret;
  68
  69         if (pdev->revision < 4) {
  70                 DRM_ERROR("qxl too old, doesn't support client_monitors_config,"
  71                           " use xf86-video-qxl in user mode");
  72                 return -EINVAL; /* TODO: ENODEV ? */
  73         }
  74
  75         drm = drm_dev_alloc(&qxl_driver, &pdev->dev);
  76         if (IS_ERR(drm))
  77                 return -ENOMEM;
  78
  79         qdev = kzalloc(sizeof(struct qxl_device), GFP_KERNEL);
  80         if (!qdev) {
  81                 ret = -ENOMEM;
  82                 goto free_drm_device;
  83         }
  84
  85         ret = pci_enable_device(pdev);
  86         if (ret)
  87                 goto free_drm_device;
  88
  89         drm->pdev = pdev;
  90         pci_set_drvdata(pdev, drm);
  91         drm->dev_private = qdev;
  92
  93         ret = qxl_device_init(qdev, drm, pdev, ent->driver_data);
  94         if (ret)
  95                 goto disable_pci;
  96
  97         ret = drm_vblank_init(drm, 1);
  98         if (ret)
  99                 goto unload;
 100
 101         ret = qxl_modeset_init(qdev);
 102         if (ret)
 103                 goto vblank_cleanup;
 104
 105         drm_kms_helper_poll_init(qdev->ddev);
 106
 107         /* Complete initialization. */
 108         ret = drm_dev_register(drm, ent->driver_data);
 109         if (ret)
 110                 goto modeset_cleanup;
 111
 112         return 0;
 113
 114 modeset_cleanup:
 115         qxl_modeset_fini(qdev);
 116 vblank_cleanup:
 117         drm_vblank_cleanup(drm);
 118 unload:
 119         qxl_device_fini(qdev);
 120 disable_pci:
 121         pci_disable_device(pdev);
 122 free_drm_device:
 123         kfree(qdev);
 124         kfree(drm);
 125         return ret;
 126 }
 127
 128 static void
 129 qxl_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 const struct file_operations qxl_fops = {
 137         .owner = THIS_MODULE,
 138         .open = drm_open,
 139         .release = drm_release,
 140         .unlocked_ioctl = drm_ioctl,
 141         .poll = drm_poll,
 142         .read = drm_read,
 143         .mmap = qxl_mmap,
 144 };
 145
 146 static int qxl_drm_freeze(struct drm_device *dev)
 147 {
 148         struct pci_dev *pdev = dev->pdev;
 149         struct qxl_device *qdev = dev->dev_private;
 150         struct drm_crtc *crtc;
 151
 152         drm_kms_helper_poll_disable(dev);
 153
 154         console_lock();
 155         qxl_fbdev_set_suspend(qdev, 1);
 156         console_unlock();
 157
 158         /* unpin the front buffers */
 159         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 160                 const struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private;
 161                 if (crtc->enabled)
 162                         (*crtc_funcs->disable)(crtc);
 163         }
 164
 165         qxl_destroy_monitors_object(qdev);
 166         qxl_surf_evict(qdev);
 167         qxl_vram_evict(qdev);
 168
 169         while (!qxl_check_idle(qdev->command_ring));
 170         while (!qxl_check_idle(qdev->release_ring))
 171                 qxl_queue_garbage_collect(qdev, 1);
 172
 173         pci_save_state(pdev);
 174
 175         return 0;
 176 }
 177
 178 static int qxl_drm_resume(struct drm_device *dev, bool thaw)
 179 {
 180         struct qxl_device *qdev = dev->dev_private;
 181
 182         qdev->ram_header->int_mask = QXL_INTERRUPT_MASK;
 183         if (!thaw) {
 184                 qxl_reinit_memslots(qdev);
 185                 qxl_ring_init_hdr(qdev->release_ring);
 186         }
 187
 188         qxl_create_monitors_object(qdev);
 189         drm_helper_resume_force_mode(dev);
 190
 191         console_lock();
 192         qxl_fbdev_set_suspend(qdev, 0);
 193         console_unlock();
 194
 195         drm_kms_helper_poll_enable(dev);
 196         return 0;
 197 }
 198
 199 static int qxl_pm_suspend(struct device *dev)
 200 {
 201         struct pci_dev *pdev = to_pci_dev(dev);
 202         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 203         int error;
 204
 205         error = qxl_drm_freeze(drm_dev);
 206         if (error)
 207                 return error;
 208
 209         pci_disable_device(pdev);
 210         pci_set_power_state(pdev, PCI_D3hot);
 211         return 0;
 212 }
 213
 214 static int qxl_pm_resume(struct device *dev)
 215 {
 216         struct pci_dev *pdev = to_pci_dev(dev);
 217         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 218
 219         pci_set_power_state(pdev, PCI_D0);
 220         pci_restore_state(pdev);
 221         if (pci_enable_device(pdev)) {
 222                 return -EIO;
 223         }
 224
 225         return qxl_drm_resume(drm_dev, false);
 226 }
 227
 228 static int qxl_pm_thaw(struct device *dev)
 229 {
 230         struct pci_dev *pdev = to_pci_dev(dev);
 231         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 232
 233         return qxl_drm_resume(drm_dev, true);
 234 }
 235
 236 static int qxl_pm_freeze(struct device *dev)
 237 {
 238         struct pci_dev *pdev = to_pci_dev(dev);
 239         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 240
 241         return qxl_drm_freeze(drm_dev);
 242 }
 243
 244 static int qxl_pm_restore(struct device *dev)
 245 {
 246         struct pci_dev *pdev = to_pci_dev(dev);
 247         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 248         struct qxl_device *qdev = drm_dev->dev_private;
 249
 250         qxl_io_reset(qdev);
 251         return qxl_drm_resume(drm_dev, false);
 252 }
 253
 254 static u32 qxl_noop_get_vblank_counter(struct drm_device *dev,
 255                                        unsigned int pipe)
 256 {
 257         return 0;
 258 }
 259
 260 static int qxl_noop_enable_vblank(struct drm_device *dev, unsigned int pipe)
 261 {
 262         return 0;
 263 }
 264
 265 static void qxl_noop_disable_vblank(struct drm_device *dev, unsigned int pipe)
 266 {
 267 }
 268
 269 static const struct dev_pm_ops qxl_pm_ops = {
 270         .suspend = qxl_pm_suspend,
 271         .resume = qxl_pm_resume,
 272         .freeze = qxl_pm_freeze,
 273         .thaw = qxl_pm_thaw,
 274         .poweroff = qxl_pm_freeze,
 275         .restore = qxl_pm_restore,
 276 };
 277 static struct pci_driver qxl_pci_driver = {
 278          .name = DRIVER_NAME,
 279          .id_table = pciidlist,
 280          .probe = qxl_pci_probe,
 281          .remove = qxl_pci_remove,
 282          .driver.pm = &qxl_pm_ops,
 283 };
 284
 285 static struct drm_driver qxl_driver = {
 286         .driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME |
 287                            DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED,
 288         .unload = qxl_driver_unload,
 289         .get_vblank_counter = qxl_noop_get_vblank_counter,
 290         .enable_vblank = qxl_noop_enable_vblank,
 291         .disable_vblank = qxl_noop_disable_vblank,
 292
 293         .set_busid = drm_pci_set_busid,
 294
 295         .dumb_create = qxl_mode_dumb_create,
 296         .dumb_map_offset = qxl_mode_dumb_mmap,
 297         .dumb_destroy = drm_gem_dumb_destroy,
 298 #if defined(CONFIG_DEBUG_FS)
 299         .debugfs_init = qxl_debugfs_init,
 300         .debugfs_cleanup = qxl_debugfs_takedown,
 301 #endif
 302         .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
 303         .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
 304         .gem_prime_export = drm_gem_prime_export,
 305         .gem_prime_import = drm_gem_prime_import,
 306         .gem_prime_pin = qxl_gem_prime_pin,
 307         .gem_prime_unpin = qxl_gem_prime_unpin,
 308         .gem_prime_get_sg_table = qxl_gem_prime_get_sg_table,
 309         .gem_prime_import_sg_table = qxl_gem_prime_import_sg_table,
 310         .gem_prime_vmap = qxl_gem_prime_vmap,
 311         .gem_prime_vunmap = qxl_gem_prime_vunmap,
 312         .gem_prime_mmap = qxl_gem_prime_mmap,
 313         .gem_free_object_unlocked = qxl_gem_object_free,
 314         .gem_open_object = qxl_gem_object_open,
 315         .gem_close_object = qxl_gem_object_close,
 316         .fops = &qxl_fops,
 317         .ioctls = qxl_ioctls,
 318         .irq_handler = qxl_irq_handler,
 319         .name = DRIVER_NAME,
 320         .desc = DRIVER_DESC,
 321         .date = DRIVER_DATE,
 322         .major = 0,
 323         .minor = 1,
 324         .patchlevel = 0,
 325 };
 326
 327 static int __init qxl_init(void)
 328 {
 329         if (vgacon_text_force() && qxl_modeset == -1)
 330                 return -EINVAL;
 331
 332         if (qxl_modeset == 0)
 333                 return -EINVAL;
 334         qxl_driver.num_ioctls = qxl_max_ioctls;
 335         return drm_pci_init(&qxl_driver, &qxl_pci_driver);
 336 }
 337
 338 static void __exit qxl_exit(void)
 339 {
 340         drm_pci_exit(&qxl_driver, &qxl_pci_driver);
 341 }
 342
 343 module_init(qxl_init);
 344 module_exit(qxl_exit);
 345
 346 MODULE_AUTHOR(DRIVER_AUTHOR);
 347 MODULE_DESCRIPTION(DRIVER_DESC);
 348 MODULE_LICENSE("GPL and additional rights");