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 .fasync = drm_fasync, 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 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 const struct dev_pm_ops qxl_pm_ops = { 200 .suspend = qxl_pm_suspend, 201 .resume = qxl_pm_resume, 202 .freeze = qxl_pm_freeze, 203 .thaw = qxl_pm_thaw, 204 .poweroff = qxl_pm_freeze, 205 .restore = qxl_pm_restore, 206 }; 207 static struct pci_driver qxl_pci_driver = { 208 .name = DRIVER_NAME, 209 .id_table = pciidlist, 210 .probe = qxl_pci_probe, 211 .remove = qxl_pci_remove, 212 .driver.pm = &qxl_pm_ops, 213 }; 214 215 static struct drm_driver qxl_driver = { 216 .driver_features = DRIVER_GEM | DRIVER_MODESET | 217 DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED, 218 .dev_priv_size = 0, 219 .load = qxl_driver_load, 220 .unload = qxl_driver_unload, 221 222 .dumb_create = qxl_mode_dumb_create, 223 .dumb_map_offset = qxl_mode_dumb_mmap, 224 .dumb_destroy = qxl_mode_dumb_destroy, 225 #if defined(CONFIG_DEBUG_FS) 226 .debugfs_init = qxl_debugfs_init, 227 .debugfs_cleanup = qxl_debugfs_takedown, 228 #endif 229 .gem_init_object = qxl_gem_object_init, 230 .gem_free_object = qxl_gem_object_free, 231 .gem_open_object = qxl_gem_object_open, 232 .gem_close_object = qxl_gem_object_close, 233 .fops = &qxl_fops, 234 .ioctls = qxl_ioctls, 235 .irq_handler = qxl_irq_handler, 236 .name = DRIVER_NAME, 237 .desc = DRIVER_DESC, 238 .date = DRIVER_DATE, 239 .major = 0, 240 .minor = 1, 241 .patchlevel = 0, 242 }; 243 244 static int __init qxl_init(void) 245 { 246 #ifdef CONFIG_VGA_CONSOLE 247 if (vgacon_text_force() && qxl_modeset == -1) 248 return -EINVAL; 249 #endif 250 251 if (qxl_modeset == 0) 252 return -EINVAL; 253 qxl_driver.num_ioctls = qxl_max_ioctls; 254 return drm_pci_init(&qxl_driver, &qxl_pci_driver); 255 } 256 257 static void __exit qxl_exit(void) 258 { 259 drm_pci_exit(&qxl_driver, &qxl_pci_driver); 260 } 261 262 module_init(qxl_init); 263 module_exit(qxl_exit); 264 265 MODULE_AUTHOR(DRIVER_AUTHOR); 266 MODULE_DESCRIPTION(DRIVER_DESC); 267 MODULE_LICENSE("GPL and additional rights"); 268