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"); 344