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         if (pdev->revision < 4) {
  66                 DRM_ERROR("qxl too old, doesn't support client_monitors_config,"
  67                           " use xf86-video-qxl in user mode");
  68                 return -EINVAL; /* TODO: ENODEV ? */
  69         }
  70         return drm_get_pci_dev(pdev, ent, &qxl_driver);
  71 }
  72
  73 static void
  74 qxl_pci_remove(struct pci_dev *pdev)
  75 {
  76         struct drm_device *dev = pci_get_drvdata(pdev);
  77
  78         drm_put_dev(dev);
  79 }
  80
  81 static const struct file_operations qxl_fops = {
  82         .owner = THIS_MODULE,
  83         .open = drm_open,
  84         .release = drm_release,
  85         .unlocked_ioctl = drm_ioctl,
  86         .poll = drm_poll,
  87         .mmap = qxl_mmap,
  88 };
  89
  90 static int qxl_drm_freeze(struct drm_device *dev)
  91 {
  92         struct pci_dev *pdev = dev->pdev;
  93         struct qxl_device *qdev = dev->dev_private;
  94         struct drm_crtc *crtc;
  95
  96         drm_kms_helper_poll_disable(dev);
  97
  98         console_lock();
  99         qxl_fbdev_set_suspend(qdev, 1);
 100         console_unlock();
 101
 102         /* unpin the front buffers */
 103         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 104                 struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private;
 105                 if (crtc->enabled)
 106                         (*crtc_funcs->disable)(crtc);
 107         }
 108
 109         qxl_destroy_monitors_object(qdev);
 110         qxl_surf_evict(qdev);
 111         qxl_vram_evict(qdev);
 112
 113         while (!qxl_check_idle(qdev->command_ring));
 114         while (!qxl_check_idle(qdev->release_ring))
 115                 qxl_queue_garbage_collect(qdev, 1);
 116
 117         pci_save_state(pdev);
 118
 119         return 0;
 120 }
 121
 122 static int qxl_drm_resume(struct drm_device *dev, bool thaw)
 123 {
 124         struct qxl_device *qdev = dev->dev_private;
 125
 126         qdev->ram_header->int_mask = QXL_INTERRUPT_MASK;
 127         if (!thaw) {
 128                 qxl_reinit_memslots(qdev);
 129                 qxl_ring_init_hdr(qdev->release_ring);
 130         }
 131
 132         qxl_create_monitors_object(qdev);
 133         drm_helper_resume_force_mode(dev);
 134
 135         console_lock();
 136         qxl_fbdev_set_suspend(qdev, 0);
 137         console_unlock();
 138
 139         drm_kms_helper_poll_enable(dev);
 140         return 0;
 141 }
 142
 143 static int qxl_pm_suspend(struct device *dev)
 144 {
 145         struct pci_dev *pdev = to_pci_dev(dev);
 146         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 147         int error;
 148
 149         error = qxl_drm_freeze(drm_dev);
 150         if (error)
 151                 return error;
 152
 153         pci_disable_device(pdev);
 154         pci_set_power_state(pdev, PCI_D3hot);
 155         return 0;
 156 }
 157
 158 static int qxl_pm_resume(struct device *dev)
 159 {
 160         struct pci_dev *pdev = to_pci_dev(dev);
 161         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 162
 163         pci_set_power_state(pdev, PCI_D0);
 164         pci_restore_state(pdev);
 165         if (pci_enable_device(pdev)) {
 166                 return -EIO;
 167         }
 168
 169         return qxl_drm_resume(drm_dev, false);
 170 }
 171
 172 static int qxl_pm_thaw(struct device *dev)
 173 {
 174         struct pci_dev *pdev = to_pci_dev(dev);
 175         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 176
 177         return qxl_drm_resume(drm_dev, true);
 178 }
 179
 180 static int qxl_pm_freeze(struct device *dev)
 181 {
 182         struct pci_dev *pdev = to_pci_dev(dev);
 183         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 184
 185         return qxl_drm_freeze(drm_dev);
 186 }
 187
 188 static int qxl_pm_restore(struct device *dev)
 189 {
 190         struct pci_dev *pdev = to_pci_dev(dev);
 191         struct drm_device *drm_dev = pci_get_drvdata(pdev);
 192         struct qxl_device *qdev = drm_dev->dev_private;
 193
 194         qxl_io_reset(qdev);
 195         return qxl_drm_resume(drm_dev, false);
 196 }
 197
 198 static const struct dev_pm_ops qxl_pm_ops = {
 199         .suspend = qxl_pm_suspend,
 200         .resume = qxl_pm_resume,
 201         .freeze = qxl_pm_freeze,
 202         .thaw = qxl_pm_thaw,
 203         .poweroff = qxl_pm_freeze,
 204         .restore = qxl_pm_restore,
 205 };
 206 static struct pci_driver qxl_pci_driver = {
 207          .name = DRIVER_NAME,
 208          .id_table = pciidlist,
 209          .probe = qxl_pci_probe,
 210          .remove = qxl_pci_remove,
 211          .driver.pm = &qxl_pm_ops,
 212 };
 213
 214 static struct drm_driver qxl_driver = {
 215         .driver_features = DRIVER_GEM | DRIVER_MODESET |
 216                            DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED,
 217         .load = qxl_driver_load,
 218         .unload = qxl_driver_unload,
 219
 220         .dumb_create = qxl_mode_dumb_create,
 221         .dumb_map_offset = qxl_mode_dumb_mmap,
 222         .dumb_destroy = drm_gem_dumb_destroy,
 223 #if defined(CONFIG_DEBUG_FS)
 224         .debugfs_init = qxl_debugfs_init,
 225         .debugfs_cleanup = qxl_debugfs_takedown,
 226 #endif
 227         .gem_free_object = qxl_gem_object_free,
 228         .gem_open_object = qxl_gem_object_open,
 229         .gem_close_object = qxl_gem_object_close,
 230         .fops = &qxl_fops,
 231         .ioctls = qxl_ioctls,
 232         .irq_handler = qxl_irq_handler,
 233         .name = DRIVER_NAME,
 234         .desc = DRIVER_DESC,
 235         .date = DRIVER_DATE,
 236         .major = 0,
 237         .minor = 1,
 238         .patchlevel = 0,
 239 };
 240
 241 static int __init qxl_init(void)
 242 {
 243 #ifdef CONFIG_VGA_CONSOLE
 244         if (vgacon_text_force() && qxl_modeset == -1)
 245                 return -EINVAL;
 246 #endif
 247
 248         if (qxl_modeset == 0)
 249                 return -EINVAL;
 250         qxl_driver.num_ioctls = qxl_max_ioctls;
 251         return drm_pci_init(&qxl_driver, &qxl_pci_driver);
 252 }
 253
 254 static void __exit qxl_exit(void)
 255 {
 256         drm_pci_exit(&qxl_driver, &qxl_pci_driver);
 257 }
 258
 259 module_init(qxl_init);
 260 module_exit(qxl_exit);
 261
 262 MODULE_AUTHOR(DRIVER_AUTHOR);
 263 MODULE_DESCRIPTION(DRIVER_DESC);
 264 MODULE_LICENSE("GPL and additional rights");