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, ent->driver_data);
  83         if (ret)
  84                 goto disable_pci;
  85
  86         ret = drm_vblank_init(&qdev->ddev, 1);
  87         if (ret)
  88                 goto unload;
  89
  90         ret = qxl_modeset_init(qdev);
  91         if (ret)
  92                 goto vblank_cleanup;
  93
  94         drm_kms_helper_poll_init(&qdev->ddev);
  95
  96         /* Complete initialization. */
  97         ret = drm_dev_register(&qdev->ddev, ent->driver_data);
  98         if (ret)
  99                 goto modeset_cleanup;
 100
 101         return 0;
 102
 103 modeset_cleanup:
 104         qxl_modeset_fini(qdev);
 105 vblank_cleanup:
 106         drm_vblank_cleanup(&qdev->ddev);
 107 unload:
 108         qxl_device_fini(qdev);
 109 disable_pci:
 110         pci_disable_device(pdev);
 111 free_dev:
 112         kfree(qdev);
 113         return ret;
 114 }
 115
 116 static void
 117 qxl_pci_remove(struct pci_dev *pdev)
 118 {
 119         struct drm_device *dev = pci_get_drvdata(pdev);
 120         struct qxl_device *qdev = dev->dev_private;
 121
 122         drm_dev_unregister(dev);
 123
 124         qxl_modeset_fini(qdev);
 125         qxl_device_fini(qdev);
 126
 127         dev->dev_private = NULL;
 128         kfree(qdev);
 129         drm_dev_unref(dev);
 130 }
 131
 132 static const struct file_operations qxl_fops = {
 133         .owner = THIS_MODULE,
 134         .open = drm_open,
 135         .release = drm_release,
 136         .unlocked_ioctl = drm_ioctl,
 137         .poll = drm_poll,
 138         .read = drm_read,
 139         .mmap = qxl_mmap,
 140 };
 141
 142 static int qxl_drm_freeze(struct drm_device *dev)
 143 {
 144         struct pci_dev *pdev = dev->pdev;
 145         struct qxl_device *qdev = dev->dev_private;
 146         struct drm_crtc *crtc;
 147
 148         drm_kms_helper_poll_disable(dev);
 149
 150         console_lock();
 151         qxl_fbdev_set_suspend(qdev, 1);
 152         console_unlock();
 153
 154         /* unpin the front buffers */
 155         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 156                 const struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private;
 157                 if (crtc->enabled)
 158                         (*crtc_funcs->disable)(crtc);
 159         }
 160
 161         qxl_destroy_monitors_object(qdev);
 162         qxl_surf_evict(qdev);
 163         qxl_vram_evict(qdev);
 164
 165         while (!qxl_check_idle(qdev->command_ring));
 166         while (!qxl_check_idle(qdev->release_ring))
 167                 qxl_queue_garbage_collect(qdev, 1);
 168
 169         pci_save_state(pdev);
 170
 171         return 0;
 172 }
 173
 174 static int qxl_drm_resume(struct drm_device *dev, bool thaw)
 175 {
 176         struct qxl_device *qdev = dev->dev_private;
 177
 178         qdev->ram_header->int_mask = QXL_INTERRUPT_MASK;
 179         if (!thaw) {
 180                 qxl_reinit_memslots(qdev);
 181                 qxl_ring_init_hdr(qdev->release_ring);
 182         }
 183
 184         qxl_create_monitors_object(qdev);
 185         drm_helper_resume_force_mode(dev);
 186
 187         console_lock();
 188         qxl_fbdev_set_suspend(qdev, 0);
 189         console_unlock();
 190
 191         drm_kms_helper_poll_enable(dev);
 192         return 0;
 193 }
 194
 195 static int qxl_pm_suspend(struct device *dev)
 196 {
 197         struct pci_dev *pdev = to_pci_dev(dev);
 198         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 199         int error;
 200
 201         error = qxl_drm_freeze(drm_dev);
 202         if (error)
 203                 return error;
 204
 205         pci_disable_device(pdev);
 206         pci_set_power_state(pdev, PCI_D3hot);
 207         return 0;
 208 }
 209
 210 static int qxl_pm_resume(struct device *dev)
 211 {
 212         struct pci_dev *pdev = to_pci_dev(dev);
 213         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 214
 215         pci_set_power_state(pdev, PCI_D0);
 216         pci_restore_state(pdev);
 217         if (pci_enable_device(pdev)) {
 218                 return -EIO;
 219         }
 220
 221         return qxl_drm_resume(drm_dev, false);
 222 }
 223
 224 static int qxl_pm_thaw(struct device *dev)
 225 {
 226         struct pci_dev *pdev = to_pci_dev(dev);
 227         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 228
 229         return qxl_drm_resume(drm_dev, true);
 230 }
 231
 232 static int qxl_pm_freeze(struct device *dev)
 233 {
 234         struct pci_dev *pdev = to_pci_dev(dev);
 235         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 236
 237         return qxl_drm_freeze(drm_dev);
 238 }
 239
 240 static int qxl_pm_restore(struct device *dev)
 241 {
 242         struct pci_dev *pdev = to_pci_dev(dev);
 243         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 244         struct qxl_device *qdev = drm_dev->dev_private;
 245
 246         qxl_io_reset(qdev);
 247         return qxl_drm_resume(drm_dev, false);
 248 }
 249
 250 static u32 qxl_noop_get_vblank_counter(struct drm_device *dev,
 251                                        unsigned int pipe)
 252 {
 253         return 0;
 254 }
 255
 256 static int qxl_noop_enable_vblank(struct drm_device *dev, unsigned int pipe)
 257 {
 258         return 0;
 259 }
 260
 261 static void qxl_noop_disable_vblank(struct drm_device *dev, unsigned int pipe)
 262 {
 263 }
 264
 265 static const struct dev_pm_ops qxl_pm_ops = {
 266         .suspend = qxl_pm_suspend,
 267         .resume = qxl_pm_resume,
 268         .freeze = qxl_pm_freeze,
 269         .thaw = qxl_pm_thaw,
 270         .poweroff = qxl_pm_freeze,
 271         .restore = qxl_pm_restore,
 272 };
 273 static struct pci_driver qxl_pci_driver = {
 274          .name = DRIVER_NAME,
 275          .id_table = pciidlist,
 276          .probe = qxl_pci_probe,
 277          .remove = qxl_pci_remove,
 278          .driver.pm = &qxl_pm_ops,
 279 };
 280
 281 static struct drm_driver qxl_driver = {
 282         .driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME |
 283                            DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED,
 284         .get_vblank_counter = qxl_noop_get_vblank_counter,
 285         .enable_vblank = qxl_noop_enable_vblank,
 286         .disable_vblank = qxl_noop_disable_vblank,
 287
 288         .set_busid = drm_pci_set_busid,
 289
 290         .dumb_create = qxl_mode_dumb_create,
 291         .dumb_map_offset = qxl_mode_dumb_mmap,
 292         .dumb_destroy = drm_gem_dumb_destroy,
 293 #if defined(CONFIG_DEBUG_FS)
 294         .debugfs_init = qxl_debugfs_init,
 295         .debugfs_cleanup = qxl_debugfs_takedown,
 296 #endif
 297         .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
 298         .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
 299         .gem_prime_export = drm_gem_prime_export,
 300         .gem_prime_import = drm_gem_prime_import,
 301         .gem_prime_pin = qxl_gem_prime_pin,
 302         .gem_prime_unpin = qxl_gem_prime_unpin,
 303         .gem_prime_get_sg_table = qxl_gem_prime_get_sg_table,
 304         .gem_prime_import_sg_table = qxl_gem_prime_import_sg_table,
 305         .gem_prime_vmap = qxl_gem_prime_vmap,
 306         .gem_prime_vunmap = qxl_gem_prime_vunmap,
 307         .gem_prime_mmap = qxl_gem_prime_mmap,
 308         .gem_free_object_unlocked = qxl_gem_object_free,
 309         .gem_open_object = qxl_gem_object_open,
 310         .gem_close_object = qxl_gem_object_close,
 311         .fops = &qxl_fops,
 312         .ioctls = qxl_ioctls,
 313         .irq_handler = qxl_irq_handler,
 314         .name = DRIVER_NAME,
 315         .desc = DRIVER_DESC,
 316         .date = DRIVER_DATE,
 317         .major = 0,
 318         .minor = 1,
 319         .patchlevel = 0,
 320 };
 321
 322 static int __init qxl_init(void)
 323 {
 324         if (vgacon_text_force() && qxl_modeset == -1)
 325                 return -EINVAL;
 326
 327         if (qxl_modeset == 0)
 328                 return -EINVAL;
 329         qxl_driver.num_ioctls = qxl_max_ioctls;
 330         return drm_pci_init(&qxl_driver, &qxl_pci_driver);
 331 }
 332
 333 static void __exit qxl_exit(void)
 334 {
 335         drm_pci_exit(&qxl_driver, &qxl_pci_driver);
 336 }
 337
 338 module_init(qxl_init);
 339 module_exit(qxl_exit);
 340
 341 MODULE_AUTHOR(DRIVER_AUTHOR);
 342 MODULE_DESCRIPTION(DRIVER_DESC);
 343 MODULE_LICENSE("GPL and additional rights");