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_crtc_helper.h> 37 #include "qxl_drv.h" 38 #include "qxl_object.h" 39 40 static const struct pci_device_id pciidlist[] = { 41 { 0x1b36, 0x100, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, 42 0xffff00, 0 }, 43 { 0x1b36, 0x100, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_OTHER << 8, 44 0xffff00, 0 }, 45 { 0, 0, 0 }, 46 }; 47 MODULE_DEVICE_TABLE(pci, pciidlist); 48 49 static int qxl_modeset = -1; 50 int qxl_num_crtc = 4; 51 52 MODULE_PARM_DESC(modeset, "Disable/Enable modesetting"); 53 module_param_named(modeset, qxl_modeset, int, 0400); 54 55 MODULE_PARM_DESC(num_heads, "Number of virtual crtcs to expose (default 4)"); 56 module_param_named(num_heads, qxl_num_crtc, int, 0400); 57 58 static struct drm_driver qxl_driver; 59 static struct pci_driver qxl_pci_driver; 60 61 static int 62 qxl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) 63 { 64 struct qxl_device *qdev; 65 int ret; 66 67 if (pdev->revision < 4) { 68 DRM_ERROR("qxl too old, doesn't support client_monitors_config," 69 " use xf86-video-qxl in user mode"); 70 return -EINVAL; /* TODO: ENODEV ? */ 71 } 72 73 qdev = kzalloc(sizeof(struct qxl_device), GFP_KERNEL); 74 if (!qdev) 75 return -ENOMEM; 76 77 ret = pci_enable_device(pdev); 78 if (ret) 79 goto free_dev; 80 81 ret = qxl_device_init(qdev, &qxl_driver, pdev); 82 if (ret) 83 goto disable_pci; 84 85 ret = qxl_modeset_init(qdev); 86 if (ret) 87 goto unload; 88 89 drm_kms_helper_poll_init(&qdev->ddev); 90 91 /* Complete initialization. */ 92 ret = drm_dev_register(&qdev->ddev, ent->driver_data); 93 if (ret) 94 goto modeset_cleanup; 95 96 return 0; 97 98 modeset_cleanup: 99 qxl_modeset_fini(qdev); 100 unload: 101 qxl_device_fini(qdev); 102 disable_pci: 103 pci_disable_device(pdev); 104 free_dev: 105 kfree(qdev); 106 return ret; 107 } 108 109 static void 110 qxl_pci_remove(struct pci_dev *pdev) 111 { 112 struct drm_device *dev = pci_get_drvdata(pdev); 113 struct qxl_device *qdev = dev->dev_private; 114 115 drm_dev_unregister(dev); 116 117 qxl_modeset_fini(qdev); 118 qxl_device_fini(qdev); 119 120 dev->dev_private = NULL; 121 kfree(qdev); 122 drm_dev_put(dev); 123 } 124 125 static const struct file_operations qxl_fops = { 126 .owner = THIS_MODULE, 127 .open = drm_open, 128 .release = drm_release, 129 .unlocked_ioctl = drm_ioctl, 130 .poll = drm_poll, 131 .read = drm_read, 132 .mmap = qxl_mmap, 133 }; 134 135 static int qxl_drm_freeze(struct drm_device *dev) 136 { 137 struct pci_dev *pdev = dev->pdev; 138 struct qxl_device *qdev = dev->dev_private; 139 int ret; 140 141 ret = drm_mode_config_helper_suspend(dev); 142 if (ret) 143 return ret; 144 145 qxl_destroy_monitors_object(qdev); 146 qxl_surf_evict(qdev); 147 qxl_vram_evict(qdev); 148 149 while (!qxl_check_idle(qdev->command_ring)); 150 while (!qxl_check_idle(qdev->release_ring)) 151 qxl_queue_garbage_collect(qdev, 1); 152 153 pci_save_state(pdev); 154 155 return 0; 156 } 157 158 static int qxl_drm_resume(struct drm_device *dev, bool thaw) 159 { 160 struct qxl_device *qdev = dev->dev_private; 161 162 qdev->ram_header->int_mask = QXL_INTERRUPT_MASK; 163 if (!thaw) { 164 qxl_reinit_memslots(qdev); 165 qxl_ring_init_hdr(qdev->release_ring); 166 } 167 168 qxl_create_monitors_object(qdev); 169 return drm_mode_config_helper_resume(dev); 170 } 171 172 static int qxl_pm_suspend(struct device *dev) 173 { 174 struct pci_dev *pdev = to_pci_dev(dev); 175 struct drm_device *drm_dev = pci_get_drvdata(pdev); 176 int error; 177 178 error = qxl_drm_freeze(drm_dev); 179 if (error) 180 return error; 181 182 pci_disable_device(pdev); 183 pci_set_power_state(pdev, PCI_D3hot); 184 return 0; 185 } 186 187 static int qxl_pm_resume(struct device *dev) 188 { 189 struct pci_dev *pdev = to_pci_dev(dev); 190 struct drm_device *drm_dev = pci_get_drvdata(pdev); 191 192 pci_set_power_state(pdev, PCI_D0); 193 pci_restore_state(pdev); 194 if (pci_enable_device(pdev)) { 195 return -EIO; 196 } 197 198 return qxl_drm_resume(drm_dev, false); 199 } 200 201 static int qxl_pm_thaw(struct device *dev) 202 { 203 struct pci_dev *pdev = to_pci_dev(dev); 204 struct drm_device *drm_dev = pci_get_drvdata(pdev); 205 206 return qxl_drm_resume(drm_dev, true); 207 } 208 209 static int qxl_pm_freeze(struct device *dev) 210 { 211 struct pci_dev *pdev = to_pci_dev(dev); 212 struct drm_device *drm_dev = pci_get_drvdata(pdev); 213 214 return qxl_drm_freeze(drm_dev); 215 } 216 217 static int qxl_pm_restore(struct device *dev) 218 { 219 struct pci_dev *pdev = to_pci_dev(dev); 220 struct drm_device *drm_dev = pci_get_drvdata(pdev); 221 struct qxl_device *qdev = drm_dev->dev_private; 222 223 qxl_io_reset(qdev); 224 return qxl_drm_resume(drm_dev, false); 225 } 226 227 static const struct dev_pm_ops qxl_pm_ops = { 228 .suspend = qxl_pm_suspend, 229 .resume = qxl_pm_resume, 230 .freeze = qxl_pm_freeze, 231 .thaw = qxl_pm_thaw, 232 .poweroff = qxl_pm_freeze, 233 .restore = qxl_pm_restore, 234 }; 235 static struct pci_driver qxl_pci_driver = { 236 .name = DRIVER_NAME, 237 .id_table = pciidlist, 238 .probe = qxl_pci_probe, 239 .remove = qxl_pci_remove, 240 .driver.pm = &qxl_pm_ops, 241 }; 242 243 static struct drm_driver qxl_driver = { 244 .driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME | 245 DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED | 246 DRIVER_ATOMIC, 247 248 .dumb_create = qxl_mode_dumb_create, 249 .dumb_map_offset = qxl_mode_dumb_mmap, 250 #if defined(CONFIG_DEBUG_FS) 251 .debugfs_init = qxl_debugfs_init, 252 #endif 253 .prime_handle_to_fd = drm_gem_prime_handle_to_fd, 254 .prime_fd_to_handle = drm_gem_prime_fd_to_handle, 255 .gem_prime_export = drm_gem_prime_export, 256 .gem_prime_import = drm_gem_prime_import, 257 .gem_prime_pin = qxl_gem_prime_pin, 258 .gem_prime_unpin = qxl_gem_prime_unpin, 259 .gem_prime_get_sg_table = qxl_gem_prime_get_sg_table, 260 .gem_prime_import_sg_table = qxl_gem_prime_import_sg_table, 261 .gem_prime_vmap = qxl_gem_prime_vmap, 262 .gem_prime_vunmap = qxl_gem_prime_vunmap, 263 .gem_prime_mmap = qxl_gem_prime_mmap, 264 .gem_free_object_unlocked = qxl_gem_object_free, 265 .gem_open_object = qxl_gem_object_open, 266 .gem_close_object = qxl_gem_object_close, 267 .fops = &qxl_fops, 268 .ioctls = qxl_ioctls, 269 .irq_handler = qxl_irq_handler, 270 .name = DRIVER_NAME, 271 .desc = DRIVER_DESC, 272 .date = DRIVER_DATE, 273 .major = 0, 274 .minor = 1, 275 .patchlevel = 0, 276 }; 277 278 static int __init qxl_init(void) 279 { 280 if (vgacon_text_force() && qxl_modeset == -1) 281 return -EINVAL; 282 283 if (qxl_modeset == 0) 284 return -EINVAL; 285 qxl_driver.num_ioctls = qxl_max_ioctls; 286 return pci_register_driver(&qxl_pci_driver); 287 } 288 289 static void __exit qxl_exit(void) 290 { 291 pci_unregister_driver(&qxl_pci_driver); 292 } 293 294 module_init(qxl_init); 295 module_exit(qxl_exit); 296 297 MODULE_AUTHOR(DRIVER_AUTHOR); 298 MODULE_DESCRIPTION(DRIVER_DESC); 299 MODULE_LICENSE("GPL and additional rights"); 300