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 qxl_device *qdev;
  66         int ret;
  67
  68         if (pdev->revision < 4) {
  69                 DRM_ERROR("qxl too old, doesn't support client_monitors_config,"
  70                           " use xf86-video-qxl in user mode");
  71                 return -EINVAL; /* TODO: ENODEV ? */
  72         }
  73
  74         qdev = kzalloc(sizeof(struct qxl_device), GFP_KERNEL);
  75         if (!qdev)
  76                 return -ENOMEM;
  77
  78         ret = pci_enable_device(pdev);
  79         if (ret)
  80                 goto free_dev;
  81
  82         ret = qxl_device_init(qdev, &qxl_driver, pdev);
  83         if (ret)
  84                 goto disable_pci;
  85
  86         ret = qxl_modeset_init(qdev);
  87         if (ret)
  88                 goto unload;
  89
  90         drm_kms_helper_poll_init(&qdev->ddev);
  91
  92         /* Complete initialization. */
  93         ret = drm_dev_register(&qdev->ddev, ent->driver_data);
  94         if (ret)
  95                 goto modeset_cleanup;
  96
  97         return 0;
  98
  99 modeset_cleanup:
 100         qxl_modeset_fini(qdev);
 101 unload:
 102         qxl_device_fini(qdev);
 103 disable_pci:
 104         pci_disable_device(pdev);
 105 free_dev:
 106         kfree(qdev);
 107         return ret;
 108 }
 109
 110 static void
 111 qxl_pci_remove(struct pci_dev *pdev)
 112 {
 113         struct drm_device *dev = pci_get_drvdata(pdev);
 114         struct qxl_device *qdev = dev->dev_private;
 115
 116         drm_dev_unregister(dev);
 117
 118         qxl_modeset_fini(qdev);
 119         qxl_device_fini(qdev);
 120
 121         dev->dev_private = NULL;
 122         kfree(qdev);
 123         drm_dev_unref(dev);
 124 }
 125
 126 static const struct file_operations qxl_fops = {
 127         .owner = THIS_MODULE,
 128         .open = drm_open,
 129         .release = drm_release,
 130         .unlocked_ioctl = drm_ioctl,
 131         .poll = drm_poll,
 132         .read = drm_read,
 133         .mmap = qxl_mmap,
 134 };
 135
 136 static int qxl_drm_freeze(struct drm_device *dev)
 137 {
 138         struct pci_dev *pdev = dev->pdev;
 139         struct qxl_device *qdev = dev->dev_private;
 140         struct drm_crtc *crtc;
 141
 142         drm_kms_helper_poll_disable(dev);
 143
 144         console_lock();
 145         qxl_fbdev_set_suspend(qdev, 1);
 146         console_unlock();
 147
 148         /* unpin the front buffers */
 149         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 150                 const struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private;
 151                 if (crtc->enabled)
 152                         (*crtc_funcs->disable)(crtc);
 153         }
 154
 155         qxl_destroy_monitors_object(qdev);
 156         qxl_surf_evict(qdev);
 157         qxl_vram_evict(qdev);
 158
 159         while (!qxl_check_idle(qdev->command_ring));
 160         while (!qxl_check_idle(qdev->release_ring))
 161                 qxl_queue_garbage_collect(qdev, 1);
 162
 163         pci_save_state(pdev);
 164
 165         return 0;
 166 }
 167
 168 static int qxl_drm_resume(struct drm_device *dev, bool thaw)
 169 {
 170         struct qxl_device *qdev = dev->dev_private;
 171
 172         qdev->ram_header->int_mask = QXL_INTERRUPT_MASK;
 173         if (!thaw) {
 174                 qxl_reinit_memslots(qdev);
 175                 qxl_ring_init_hdr(qdev->release_ring);
 176         }
 177
 178         qxl_create_monitors_object(qdev);
 179         drm_helper_resume_force_mode(dev);
 180
 181         console_lock();
 182         qxl_fbdev_set_suspend(qdev, 0);
 183         console_unlock();
 184
 185         drm_kms_helper_poll_enable(dev);
 186         return 0;
 187 }
 188
 189 static int qxl_pm_suspend(struct device *dev)
 190 {
 191         struct pci_dev *pdev = to_pci_dev(dev);
 192         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 193         int error;
 194
 195         error = qxl_drm_freeze(drm_dev);
 196         if (error)
 197                 return error;
 198
 199         pci_disable_device(pdev);
 200         pci_set_power_state(pdev, PCI_D3hot);
 201         return 0;
 202 }
 203
 204 static int qxl_pm_resume(struct device *dev)
 205 {
 206         struct pci_dev *pdev = to_pci_dev(dev);
 207         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 208
 209         pci_set_power_state(pdev, PCI_D0);
 210         pci_restore_state(pdev);
 211         if (pci_enable_device(pdev)) {
 212                 return -EIO;
 213         }
 214
 215         return qxl_drm_resume(drm_dev, false);
 216 }
 217
 218 static int qxl_pm_thaw(struct device *dev)
 219 {
 220         struct pci_dev *pdev = to_pci_dev(dev);
 221         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 222
 223         return qxl_drm_resume(drm_dev, true);
 224 }
 225
 226 static int qxl_pm_freeze(struct device *dev)
 227 {
 228         struct pci_dev *pdev = to_pci_dev(dev);
 229         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 230
 231         return qxl_drm_freeze(drm_dev);
 232 }
 233
 234 static int qxl_pm_restore(struct device *dev)
 235 {
 236         struct pci_dev *pdev = to_pci_dev(dev);
 237         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 238         struct qxl_device *qdev = drm_dev->dev_private;
 239
 240         qxl_io_reset(qdev);
 241         return qxl_drm_resume(drm_dev, false);
 242 }
 243
 244 static const struct dev_pm_ops qxl_pm_ops = {
 245         .suspend = qxl_pm_suspend,
 246         .resume = qxl_pm_resume,
 247         .freeze = qxl_pm_freeze,
 248         .thaw = qxl_pm_thaw,
 249         .poweroff = qxl_pm_freeze,
 250         .restore = qxl_pm_restore,
 251 };
 252 static struct pci_driver qxl_pci_driver = {
 253          .name = DRIVER_NAME,
 254          .id_table = pciidlist,
 255          .probe = qxl_pci_probe,
 256          .remove = qxl_pci_remove,
 257          .driver.pm = &qxl_pm_ops,
 258 };
 259
 260 static struct drm_driver qxl_driver = {
 261         .driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME |
 262                            DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED |
 263                            DRIVER_ATOMIC,
 264
 265         .set_busid = drm_pci_set_busid,
 266
 267         .dumb_create = qxl_mode_dumb_create,
 268         .dumb_map_offset = qxl_mode_dumb_mmap,
 269         .dumb_destroy = drm_gem_dumb_destroy,
 270 #if defined(CONFIG_DEBUG_FS)
 271         .debugfs_init = qxl_debugfs_init,
 272 #endif
 273         .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
 274         .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
 275         .gem_prime_export = drm_gem_prime_export,
 276         .gem_prime_import = drm_gem_prime_import,
 277         .gem_prime_pin = qxl_gem_prime_pin,
 278         .gem_prime_unpin = qxl_gem_prime_unpin,
 279         .gem_prime_get_sg_table = qxl_gem_prime_get_sg_table,
 280         .gem_prime_import_sg_table = qxl_gem_prime_import_sg_table,
 281         .gem_prime_vmap = qxl_gem_prime_vmap,
 282         .gem_prime_vunmap = qxl_gem_prime_vunmap,
 283         .gem_prime_mmap = qxl_gem_prime_mmap,
 284         .gem_free_object_unlocked = qxl_gem_object_free,
 285         .gem_open_object = qxl_gem_object_open,
 286         .gem_close_object = qxl_gem_object_close,
 287         .fops = &qxl_fops,
 288         .ioctls = qxl_ioctls,
 289         .irq_handler = qxl_irq_handler,
 290         .name = DRIVER_NAME,
 291         .desc = DRIVER_DESC,
 292         .date = DRIVER_DATE,
 293         .major = 0,
 294         .minor = 1,
 295         .patchlevel = 0,
 296 };
 297
 298 static int __init qxl_init(void)
 299 {
 300         if (vgacon_text_force() && qxl_modeset == -1)
 301                 return -EINVAL;
 302
 303         if (qxl_modeset == 0)
 304                 return -EINVAL;
 305         qxl_driver.num_ioctls = qxl_max_ioctls;
 306         return drm_pci_init(&qxl_driver, &qxl_pci_driver);
 307 }
 308
 309 static void __exit qxl_exit(void)
 310 {
 311         drm_pci_exit(&qxl_driver, &qxl_pci_driver);
 312 }
 313
 314 module_init(qxl_init);
 315 module_exit(qxl_exit);
 316
 317 MODULE_AUTHOR(DRIVER_AUTHOR);
 318 MODULE_DESCRIPTION(DRIVER_DESC);
 319 MODULE_LICENSE("GPL and additional rights");