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 <drm/drmP.h> 35 #include <drm/drm.h> 36 #include <drm/drm_modeset_helper.h> 37 #include <drm/drm_probe_helper.h> 38 #include "qxl_drv.h" 39 #include "qxl_object.h" 40 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 = drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, 0, "qxl"); 83 if (ret) 84 goto disable_pci; 85 86 ret = qxl_device_init(qdev, &qxl_driver, pdev); 87 if (ret) 88 goto disable_pci; 89 90 ret = qxl_modeset_init(qdev); 91 if (ret) 92 goto unload; 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 drm_fbdev_generic_setup(&qdev->ddev, 32); 102 return 0; 103 104 modeset_cleanup: 105 qxl_modeset_fini(qdev); 106 unload: 107 qxl_device_fini(qdev); 108 disable_pci: 109 pci_disable_device(pdev); 110 free_dev: 111 kfree(qdev); 112 return ret; 113 } 114 115 static void 116 qxl_pci_remove(struct pci_dev *pdev) 117 { 118 struct drm_device *dev = pci_get_drvdata(pdev); 119 struct qxl_device *qdev = dev->dev_private; 120 121 drm_dev_unregister(dev); 122 123 qxl_modeset_fini(qdev); 124 qxl_device_fini(qdev); 125 126 dev->dev_private = NULL; 127 kfree(qdev); 128 drm_dev_put(dev); 129 } 130 131 static const struct file_operations qxl_fops = { 132 .owner = THIS_MODULE, 133 .open = drm_open, 134 .release = drm_release, 135 .unlocked_ioctl = drm_ioctl, 136 .poll = drm_poll, 137 .read = drm_read, 138 .mmap = qxl_mmap, 139 }; 140 141 static int qxl_drm_freeze(struct drm_device *dev) 142 { 143 struct pci_dev *pdev = dev->pdev; 144 struct qxl_device *qdev = dev->dev_private; 145 int ret; 146 147 ret = drm_mode_config_helper_suspend(dev); 148 if (ret) 149 return ret; 150 151 qxl_destroy_monitors_object(qdev); 152 qxl_surf_evict(qdev); 153 qxl_vram_evict(qdev); 154 155 while (!qxl_check_idle(qdev->command_ring)); 156 while (!qxl_check_idle(qdev->release_ring)) 157 qxl_queue_garbage_collect(qdev, 1); 158 159 pci_save_state(pdev); 160 161 return 0; 162 } 163 164 static int qxl_drm_resume(struct drm_device *dev, bool thaw) 165 { 166 struct qxl_device *qdev = dev->dev_private; 167 168 qdev->ram_header->int_mask = QXL_INTERRUPT_MASK; 169 if (!thaw) { 170 qxl_reinit_memslots(qdev); 171 qxl_ring_init_hdr(qdev->release_ring); 172 } 173 174 qxl_create_monitors_object(qdev); 175 return drm_mode_config_helper_resume(dev); 176 } 177 178 static int qxl_pm_suspend(struct device *dev) 179 { 180 struct pci_dev *pdev = to_pci_dev(dev); 181 struct drm_device *drm_dev = pci_get_drvdata(pdev); 182 int error; 183 184 error = qxl_drm_freeze(drm_dev); 185 if (error) 186 return error; 187 188 pci_disable_device(pdev); 189 pci_set_power_state(pdev, PCI_D3hot); 190 return 0; 191 } 192 193 static int qxl_pm_resume(struct device *dev) 194 { 195 struct pci_dev *pdev = to_pci_dev(dev); 196 struct drm_device *drm_dev = pci_get_drvdata(pdev); 197 198 pci_set_power_state(pdev, PCI_D0); 199 pci_restore_state(pdev); 200 if (pci_enable_device(pdev)) { 201 return -EIO; 202 } 203 204 return qxl_drm_resume(drm_dev, false); 205 } 206 207 static int qxl_pm_thaw(struct device *dev) 208 { 209 struct pci_dev *pdev = to_pci_dev(dev); 210 struct drm_device *drm_dev = pci_get_drvdata(pdev); 211 212 return qxl_drm_resume(drm_dev, true); 213 } 214 215 static int qxl_pm_freeze(struct device *dev) 216 { 217 struct pci_dev *pdev = to_pci_dev(dev); 218 struct drm_device *drm_dev = pci_get_drvdata(pdev); 219 220 return qxl_drm_freeze(drm_dev); 221 } 222 223 static int qxl_pm_restore(struct device *dev) 224 { 225 struct pci_dev *pdev = to_pci_dev(dev); 226 struct drm_device *drm_dev = pci_get_drvdata(pdev); 227 struct qxl_device *qdev = drm_dev->dev_private; 228 229 qxl_io_reset(qdev); 230 return qxl_drm_resume(drm_dev, false); 231 } 232 233 static const struct dev_pm_ops qxl_pm_ops = { 234 .suspend = qxl_pm_suspend, 235 .resume = qxl_pm_resume, 236 .freeze = qxl_pm_freeze, 237 .thaw = qxl_pm_thaw, 238 .poweroff = qxl_pm_freeze, 239 .restore = qxl_pm_restore, 240 }; 241 static struct pci_driver qxl_pci_driver = { 242 .name = DRIVER_NAME, 243 .id_table = pciidlist, 244 .probe = qxl_pci_probe, 245 .remove = qxl_pci_remove, 246 .driver.pm = &qxl_pm_ops, 247 }; 248 249 static struct drm_driver qxl_driver = { 250 .driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME | 251 DRIVER_ATOMIC, 252 253 .dumb_create = qxl_mode_dumb_create, 254 .dumb_map_offset = qxl_mode_dumb_mmap, 255 #if defined(CONFIG_DEBUG_FS) 256 .debugfs_init = qxl_debugfs_init, 257 #endif 258 .prime_handle_to_fd = drm_gem_prime_handle_to_fd, 259 .prime_fd_to_handle = drm_gem_prime_fd_to_handle, 260 .gem_prime_export = drm_gem_prime_export, 261 .gem_prime_import = drm_gem_prime_import, 262 .gem_prime_pin = qxl_gem_prime_pin, 263 .gem_prime_unpin = qxl_gem_prime_unpin, 264 .gem_prime_get_sg_table = qxl_gem_prime_get_sg_table, 265 .gem_prime_import_sg_table = qxl_gem_prime_import_sg_table, 266 .gem_prime_vmap = qxl_gem_prime_vmap, 267 .gem_prime_vunmap = qxl_gem_prime_vunmap, 268 .gem_prime_mmap = qxl_gem_prime_mmap, 269 .gem_free_object_unlocked = qxl_gem_object_free, 270 .gem_open_object = qxl_gem_object_open, 271 .gem_close_object = qxl_gem_object_close, 272 .fops = &qxl_fops, 273 .ioctls = qxl_ioctls, 274 .irq_handler = qxl_irq_handler, 275 .name = DRIVER_NAME, 276 .desc = DRIVER_DESC, 277 .date = DRIVER_DATE, 278 .major = 0, 279 .minor = 1, 280 .patchlevel = 0, 281 }; 282 283 static int __init qxl_init(void) 284 { 285 if (vgacon_text_force() && qxl_modeset == -1) 286 return -EINVAL; 287 288 if (qxl_modeset == 0) 289 return -EINVAL; 290 qxl_driver.num_ioctls = qxl_max_ioctls; 291 return pci_register_driver(&qxl_pci_driver); 292 } 293 294 static void __exit qxl_exit(void) 295 { 296 pci_unregister_driver(&qxl_pci_driver); 297 } 298 299 module_init(qxl_init); 300 module_exit(qxl_exit); 301 302 MODULE_AUTHOR(DRIVER_AUTHOR); 303 MODULE_DESCRIPTION(DRIVER_DESC); 304 MODULE_LICENSE("GPL and additional rights"); 305