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