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 DEFINE_PCI_DEVICE_TABLE(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 .dev_priv_size = 0, 218 .load = qxl_driver_load, 219 .unload = qxl_driver_unload, 220 221 .dumb_create = qxl_mode_dumb_create, 222 .dumb_map_offset = qxl_mode_dumb_mmap, 223 .dumb_destroy = drm_gem_dumb_destroy, 224 #if defined(CONFIG_DEBUG_FS) 225 .debugfs_init = qxl_debugfs_init, 226 .debugfs_cleanup = qxl_debugfs_takedown, 227 #endif 228 .gem_free_object = qxl_gem_object_free, 229 .gem_open_object = qxl_gem_object_open, 230 .gem_close_object = qxl_gem_object_close, 231 .fops = &qxl_fops, 232 .ioctls = qxl_ioctls, 233 .irq_handler = qxl_irq_handler, 234 .name = DRIVER_NAME, 235 .desc = DRIVER_DESC, 236 .date = DRIVER_DATE, 237 .major = 0, 238 .minor = 1, 239 .patchlevel = 0, 240 }; 241 242 static int __init qxl_init(void) 243 { 244 #ifdef CONFIG_VGA_CONSOLE 245 if (vgacon_text_force() && qxl_modeset == -1) 246 return -EINVAL; 247 #endif 248 249 if (qxl_modeset == 0) 250 return -EINVAL; 251 qxl_driver.num_ioctls = qxl_max_ioctls; 252 return drm_pci_init(&qxl_driver, &qxl_pci_driver); 253 } 254 255 static void __exit qxl_exit(void) 256 { 257 drm_pci_exit(&qxl_driver, &qxl_pci_driver); 258 } 259 260 module_init(qxl_init); 261 module_exit(qxl_exit); 262 263 MODULE_AUTHOR(DRIVER_AUTHOR); 264 MODULE_DESCRIPTION(DRIVER_DESC); 265 MODULE_LICENSE("GPL and additional rights"); 266