1 /* qxl_drv.c -- QXL driver -*- linux-c -*- 2 * 3 * Copyright 2011 Red Hat, Inc. 4 * All Rights Reserved. 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a 7 * copy of this software and associated documentation files (the "Software"), 8 * to deal in the Software without restriction, including without limitation 9 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 10 * and/or sell copies of the Software, and to permit persons to whom the 11 * Software is furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice (including the next 14 * paragraph) shall be included in all copies or substantial portions of the 15 * Software. 16 * 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 20 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR 21 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 22 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 23 * OTHER DEALINGS IN THE SOFTWARE. 24 * 25 * Authors: 26 * Dave Airlie <airlie@redhat.com> 27 * Alon Levy <alevy@redhat.com> 28 */ 29 30 #include "qxl_drv.h" 31 32 #include <linux/aperture.h> 33 #include <linux/module.h> 34 #include <linux/pci.h> 35 #include <linux/vgaarb.h> 36 37 #include <drm/clients/drm_client_setup.h> 38 #include <drm/drm.h> 39 #include <drm/drm_atomic_helper.h> 40 #include <drm/drm_drv.h> 41 #include <drm/drm_fbdev_ttm.h> 42 #include <drm/drm_file.h> 43 #include <drm/drm_gem_ttm_helper.h> 44 #include <drm/drm_module.h> 45 #include <drm/drm_modeset_helper.h> 46 #include <drm/drm_prime.h> 47 #include <drm/drm_print.h> 48 #include <drm/drm_probe_helper.h> 49 50 #include "qxl_object.h" 51 52 static const struct pci_device_id pciidlist[] = { 53 { 0x1b36, 0x100, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, 54 0xffff00, 0 }, 55 { 0x1b36, 0x100, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_OTHER << 8, 56 0xffff00, 0 }, 57 { 0, 0, 0 }, 58 }; 59 MODULE_DEVICE_TABLE(pci, pciidlist); 60 61 static int qxl_modeset = -1; 62 int qxl_num_crtc = 4; 63 64 MODULE_PARM_DESC(modeset, "Disable/Enable modesetting"); 65 module_param_named(modeset, qxl_modeset, int, 0400); 66 67 MODULE_PARM_DESC(num_heads, "Number of virtual crtcs to expose (default 4)"); 68 module_param_named(num_heads, qxl_num_crtc, int, 0400); 69 70 static struct drm_driver qxl_driver; 71 static struct pci_driver qxl_pci_driver; 72 73 static int 74 qxl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) 75 { 76 struct qxl_device *qdev; 77 int ret; 78 79 if (pdev->revision < 4) { 80 DRM_ERROR("qxl too old, doesn't support client_monitors_config," 81 " use xf86-video-qxl in user mode"); 82 return -EINVAL; /* TODO: ENODEV ? */ 83 } 84 85 qdev = devm_drm_dev_alloc(&pdev->dev, &qxl_driver, 86 struct qxl_device, ddev); 87 if (IS_ERR(qdev)) { 88 pr_err("Unable to init drm dev"); 89 return -ENOMEM; 90 } 91 92 ret = pci_enable_device(pdev); 93 if (ret) 94 return ret; 95 96 ret = aperture_remove_conflicting_pci_devices(pdev, qxl_driver.name); 97 if (ret) 98 goto disable_pci; 99 100 if (pci_is_vga(pdev) && pdev->revision < 5) { 101 ret = vga_get_interruptible(pdev, VGA_RSRC_LEGACY_IO); 102 if (ret) { 103 DRM_ERROR("can't get legacy vga ioports\n"); 104 goto disable_pci; 105 } 106 } 107 108 ret = qxl_device_init(qdev, pdev); 109 if (ret) 110 goto put_vga; 111 112 ret = qxl_modeset_init(qdev); 113 if (ret) 114 goto unload; 115 116 drm_kms_helper_poll_init(&qdev->ddev); 117 118 /* Complete initialization. */ 119 ret = drm_dev_register(&qdev->ddev, ent->driver_data); 120 if (ret) 121 goto modeset_cleanup; 122 123 drm_client_setup(&qdev->ddev, NULL); 124 return 0; 125 126 modeset_cleanup: 127 qxl_modeset_fini(qdev); 128 unload: 129 qxl_device_fini(qdev); 130 put_vga: 131 if (pci_is_vga(pdev) && pdev->revision < 5) 132 vga_put(pdev, VGA_RSRC_LEGACY_IO); 133 disable_pci: 134 pci_disable_device(pdev); 135 136 return ret; 137 } 138 139 static void qxl_drm_release(struct drm_device *dev) 140 { 141 struct qxl_device *qdev = to_qxl(dev); 142 143 /* 144 * TODO: qxl_device_fini() call should be in qxl_pci_remove(), 145 * reordering qxl_modeset_fini() + qxl_device_fini() calls is 146 * non-trivial though. 147 */ 148 qxl_modeset_fini(qdev); 149 qxl_device_fini(qdev); 150 } 151 152 static void 153 qxl_pci_remove(struct pci_dev *pdev) 154 { 155 struct drm_device *dev = pci_get_drvdata(pdev); 156 157 drm_dev_unregister(dev); 158 drm_atomic_helper_shutdown(dev); 159 if (pci_is_vga(pdev) && pdev->revision < 5) 160 vga_put(pdev, VGA_RSRC_LEGACY_IO); 161 } 162 163 static void 164 qxl_pci_shutdown(struct pci_dev *pdev) 165 { 166 drm_atomic_helper_shutdown(pci_get_drvdata(pdev)); 167 } 168 169 DEFINE_DRM_GEM_FOPS(qxl_fops); 170 171 static int qxl_drm_freeze(struct drm_device *dev) 172 { 173 struct pci_dev *pdev = to_pci_dev(dev->dev); 174 struct qxl_device *qdev = to_qxl(dev); 175 int ret; 176 177 ret = drm_mode_config_helper_suspend(dev); 178 if (ret) 179 return ret; 180 181 qxl_destroy_monitors_object(qdev); 182 qxl_surf_evict(qdev); 183 qxl_vram_evict(qdev); 184 185 while (!qxl_check_idle(qdev->command_ring)); 186 while (!qxl_check_idle(qdev->release_ring)) 187 qxl_queue_garbage_collect(qdev, 1); 188 189 pci_save_state(pdev); 190 191 return 0; 192 } 193 194 static int qxl_drm_resume(struct drm_device *dev, bool thaw) 195 { 196 struct qxl_device *qdev = to_qxl(dev); 197 198 qdev->ram_header->int_mask = QXL_INTERRUPT_MASK; 199 if (!thaw) { 200 qxl_reinit_memslots(qdev); 201 } 202 203 qxl_create_monitors_object(qdev); 204 return drm_mode_config_helper_resume(dev); 205 } 206 207 static int qxl_pm_suspend(struct device *dev) 208 { 209 struct pci_dev *pdev = to_pci_dev(dev); 210 struct drm_device *drm_dev = pci_get_drvdata(pdev); 211 int error; 212 213 error = qxl_drm_freeze(drm_dev); 214 if (error) 215 return error; 216 217 pci_disable_device(pdev); 218 pci_set_power_state(pdev, PCI_D3hot); 219 return 0; 220 } 221 222 static int qxl_pm_resume(struct device *dev) 223 { 224 struct pci_dev *pdev = to_pci_dev(dev); 225 struct drm_device *drm_dev = pci_get_drvdata(pdev); 226 struct qxl_device *qdev = to_qxl(drm_dev); 227 228 pci_set_power_state(pdev, PCI_D0); 229 pci_restore_state(pdev); 230 if (pci_enable_device(pdev)) { 231 return -EIO; 232 } 233 234 qxl_io_reset(qdev); 235 return qxl_drm_resume(drm_dev, false); 236 } 237 238 static int qxl_pm_thaw(struct device *dev) 239 { 240 struct drm_device *drm_dev = dev_get_drvdata(dev); 241 242 return qxl_drm_resume(drm_dev, true); 243 } 244 245 static int qxl_pm_freeze(struct device *dev) 246 { 247 struct drm_device *drm_dev = dev_get_drvdata(dev); 248 249 return qxl_drm_freeze(drm_dev); 250 } 251 252 static int qxl_pm_restore(struct device *dev) 253 { 254 struct pci_dev *pdev = to_pci_dev(dev); 255 struct drm_device *drm_dev = pci_get_drvdata(pdev); 256 struct qxl_device *qdev = to_qxl(drm_dev); 257 258 qxl_io_reset(qdev); 259 return qxl_drm_resume(drm_dev, false); 260 } 261 262 static const struct dev_pm_ops qxl_pm_ops = { 263 .suspend = qxl_pm_suspend, 264 .resume = qxl_pm_resume, 265 .freeze = qxl_pm_freeze, 266 .thaw = qxl_pm_thaw, 267 .poweroff = qxl_pm_freeze, 268 .restore = qxl_pm_restore, 269 }; 270 static struct pci_driver qxl_pci_driver = { 271 .name = DRIVER_NAME, 272 .id_table = pciidlist, 273 .probe = qxl_pci_probe, 274 .remove = qxl_pci_remove, 275 .shutdown = qxl_pci_shutdown, 276 .driver.pm = &qxl_pm_ops, 277 }; 278 279 static const struct drm_ioctl_desc qxl_ioctls[] = { 280 DRM_IOCTL_DEF_DRV(QXL_ALLOC, qxl_alloc_ioctl, DRM_AUTH), 281 DRM_IOCTL_DEF_DRV(QXL_MAP, qxl_map_ioctl, DRM_AUTH), 282 DRM_IOCTL_DEF_DRV(QXL_EXECBUFFER, qxl_execbuffer_ioctl, DRM_AUTH), 283 DRM_IOCTL_DEF_DRV(QXL_UPDATE_AREA, qxl_update_area_ioctl, DRM_AUTH), 284 DRM_IOCTL_DEF_DRV(QXL_GETPARAM, qxl_getparam_ioctl, DRM_AUTH), 285 DRM_IOCTL_DEF_DRV(QXL_CLIENTCAP, qxl_clientcap_ioctl, DRM_AUTH), 286 DRM_IOCTL_DEF_DRV(QXL_ALLOC_SURF, qxl_alloc_surf_ioctl, DRM_AUTH), 287 }; 288 289 static struct drm_driver qxl_driver = { 290 .driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC | DRIVER_CURSOR_HOTSPOT, 291 292 .dumb_create = qxl_mode_dumb_create, 293 .dumb_map_offset = drm_gem_ttm_dumb_map_offset, 294 #if defined(CONFIG_DEBUG_FS) 295 .debugfs_init = qxl_debugfs_init, 296 #endif 297 .gem_prime_import_sg_table = qxl_gem_prime_import_sg_table, 298 DRM_FBDEV_TTM_DRIVER_OPS, 299 .fops = &qxl_fops, 300 .ioctls = qxl_ioctls, 301 .num_ioctls = ARRAY_SIZE(qxl_ioctls), 302 .name = DRIVER_NAME, 303 .desc = DRIVER_DESC, 304 .major = 0, 305 .minor = 1, 306 .patchlevel = 0, 307 308 .release = qxl_drm_release, 309 }; 310 311 drm_module_pci_driver_if_modeset(qxl_pci_driver, qxl_modeset); 312 313 MODULE_AUTHOR(DRIVER_AUTHOR); 314 MODULE_DESCRIPTION(DRIVER_DESC); 315 MODULE_LICENSE("GPL and additional rights"); 316