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/module.h> 33 #include <linux/pci.h> 34 #include <linux/vgaarb.h> 35 36 #include <drm/drm.h> 37 #include <drm/drm_aperture.h> 38 #include <drm/drm_atomic_helper.h> 39 #include <drm/drm_drv.h> 40 #include <drm/drm_fbdev_generic.h> 41 #include <drm/drm_file.h> 42 #include <drm/drm_gem_ttm_helper.h> 43 #include <drm/drm_module.h> 44 #include <drm/drm_modeset_helper.h> 45 #include <drm/drm_prime.h> 46 #include <drm/drm_probe_helper.h> 47 48 #include "qxl_object.h" 49 50 static const struct pci_device_id pciidlist[] = { 51 { 0x1b36, 0x100, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, 52 0xffff00, 0 }, 53 { 0x1b36, 0x100, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_OTHER << 8, 54 0xffff00, 0 }, 55 { 0, 0, 0 }, 56 }; 57 MODULE_DEVICE_TABLE(pci, pciidlist); 58 59 static int qxl_modeset = -1; 60 int qxl_num_crtc = 4; 61 62 MODULE_PARM_DESC(modeset, "Disable/Enable modesetting"); 63 module_param_named(modeset, qxl_modeset, int, 0400); 64 65 MODULE_PARM_DESC(num_heads, "Number of virtual crtcs to expose (default 4)"); 66 module_param_named(num_heads, qxl_num_crtc, int, 0400); 67 68 static struct drm_driver qxl_driver; 69 static struct pci_driver qxl_pci_driver; 70 71 static int 72 qxl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) 73 { 74 struct qxl_device *qdev; 75 int ret; 76 77 if (pdev->revision < 4) { 78 DRM_ERROR("qxl too old, doesn't support client_monitors_config," 79 " use xf86-video-qxl in user mode"); 80 return -EINVAL; /* TODO: ENODEV ? */ 81 } 82 83 qdev = devm_drm_dev_alloc(&pdev->dev, &qxl_driver, 84 struct qxl_device, ddev); 85 if (IS_ERR(qdev)) { 86 pr_err("Unable to init drm dev"); 87 return -ENOMEM; 88 } 89 90 ret = pci_enable_device(pdev); 91 if (ret) 92 return ret; 93 94 ret = drm_aperture_remove_conflicting_pci_framebuffers(pdev, &qxl_driver); 95 if (ret) 96 goto disable_pci; 97 98 if (pci_is_vga(pdev) && pdev->revision < 5) { 99 ret = vga_get_interruptible(pdev, VGA_RSRC_LEGACY_IO); 100 if (ret) { 101 DRM_ERROR("can't get legacy vga ioports\n"); 102 goto disable_pci; 103 } 104 } 105 106 ret = qxl_device_init(qdev, pdev); 107 if (ret) 108 goto put_vga; 109 110 ret = qxl_modeset_init(qdev); 111 if (ret) 112 goto unload; 113 114 drm_kms_helper_poll_init(&qdev->ddev); 115 116 /* Complete initialization. */ 117 ret = drm_dev_register(&qdev->ddev, ent->driver_data); 118 if (ret) 119 goto modeset_cleanup; 120 121 drm_fbdev_generic_setup(&qdev->ddev, 32); 122 return 0; 123 124 modeset_cleanup: 125 qxl_modeset_fini(qdev); 126 unload: 127 qxl_device_fini(qdev); 128 put_vga: 129 if (pci_is_vga(pdev) && pdev->revision < 5) 130 vga_put(pdev, VGA_RSRC_LEGACY_IO); 131 disable_pci: 132 pci_disable_device(pdev); 133 134 return ret; 135 } 136 137 static void qxl_drm_release(struct drm_device *dev) 138 { 139 struct qxl_device *qdev = to_qxl(dev); 140 141 /* 142 * TODO: qxl_device_fini() call should be in qxl_pci_remove(), 143 * reordering qxl_modeset_fini() + qxl_device_fini() calls is 144 * non-trivial though. 145 */ 146 qxl_modeset_fini(qdev); 147 qxl_device_fini(qdev); 148 } 149 150 static void 151 qxl_pci_remove(struct pci_dev *pdev) 152 { 153 struct drm_device *dev = pci_get_drvdata(pdev); 154 155 drm_dev_unregister(dev); 156 drm_atomic_helper_shutdown(dev); 157 if (pci_is_vga(pdev) && pdev->revision < 5) 158 vga_put(pdev, VGA_RSRC_LEGACY_IO); 159 } 160 161 static void 162 qxl_pci_shutdown(struct pci_dev *pdev) 163 { 164 drm_atomic_helper_shutdown(pci_get_drvdata(pdev)); 165 } 166 167 DEFINE_DRM_GEM_FOPS(qxl_fops); 168 169 static int qxl_drm_freeze(struct drm_device *dev) 170 { 171 struct pci_dev *pdev = to_pci_dev(dev->dev); 172 struct qxl_device *qdev = to_qxl(dev); 173 int ret; 174 175 ret = drm_mode_config_helper_suspend(dev); 176 if (ret) 177 return ret; 178 179 qxl_destroy_monitors_object(qdev); 180 qxl_surf_evict(qdev); 181 qxl_vram_evict(qdev); 182 183 while (!qxl_check_idle(qdev->command_ring)); 184 while (!qxl_check_idle(qdev->release_ring)) 185 qxl_queue_garbage_collect(qdev, 1); 186 187 pci_save_state(pdev); 188 189 return 0; 190 } 191 192 static int qxl_drm_resume(struct drm_device *dev, bool thaw) 193 { 194 struct qxl_device *qdev = to_qxl(dev); 195 196 qdev->ram_header->int_mask = QXL_INTERRUPT_MASK; 197 if (!thaw) { 198 qxl_reinit_memslots(qdev); 199 } 200 201 qxl_create_monitors_object(qdev); 202 return drm_mode_config_helper_resume(dev); 203 } 204 205 static int qxl_pm_suspend(struct device *dev) 206 { 207 struct pci_dev *pdev = to_pci_dev(dev); 208 struct drm_device *drm_dev = pci_get_drvdata(pdev); 209 int error; 210 211 error = qxl_drm_freeze(drm_dev); 212 if (error) 213 return error; 214 215 pci_disable_device(pdev); 216 pci_set_power_state(pdev, PCI_D3hot); 217 return 0; 218 } 219 220 static int qxl_pm_resume(struct device *dev) 221 { 222 struct pci_dev *pdev = to_pci_dev(dev); 223 struct drm_device *drm_dev = pci_get_drvdata(pdev); 224 struct qxl_device *qdev = to_qxl(drm_dev); 225 226 pci_set_power_state(pdev, PCI_D0); 227 pci_restore_state(pdev); 228 if (pci_enable_device(pdev)) { 229 return -EIO; 230 } 231 232 qxl_io_reset(qdev); 233 return qxl_drm_resume(drm_dev, false); 234 } 235 236 static int qxl_pm_thaw(struct device *dev) 237 { 238 struct drm_device *drm_dev = dev_get_drvdata(dev); 239 240 return qxl_drm_resume(drm_dev, true); 241 } 242 243 static int qxl_pm_freeze(struct device *dev) 244 { 245 struct drm_device *drm_dev = dev_get_drvdata(dev); 246 247 return qxl_drm_freeze(drm_dev); 248 } 249 250 static int qxl_pm_restore(struct device *dev) 251 { 252 struct pci_dev *pdev = to_pci_dev(dev); 253 struct drm_device *drm_dev = pci_get_drvdata(pdev); 254 struct qxl_device *qdev = to_qxl(drm_dev); 255 256 qxl_io_reset(qdev); 257 return qxl_drm_resume(drm_dev, false); 258 } 259 260 static const struct dev_pm_ops qxl_pm_ops = { 261 .suspend = qxl_pm_suspend, 262 .resume = qxl_pm_resume, 263 .freeze = qxl_pm_freeze, 264 .thaw = qxl_pm_thaw, 265 .poweroff = qxl_pm_freeze, 266 .restore = qxl_pm_restore, 267 }; 268 static struct pci_driver qxl_pci_driver = { 269 .name = DRIVER_NAME, 270 .id_table = pciidlist, 271 .probe = qxl_pci_probe, 272 .remove = qxl_pci_remove, 273 .shutdown = qxl_pci_shutdown, 274 .driver.pm = &qxl_pm_ops, 275 }; 276 277 static const struct drm_ioctl_desc qxl_ioctls[] = { 278 DRM_IOCTL_DEF_DRV(QXL_ALLOC, qxl_alloc_ioctl, DRM_AUTH), 279 DRM_IOCTL_DEF_DRV(QXL_MAP, qxl_map_ioctl, DRM_AUTH), 280 DRM_IOCTL_DEF_DRV(QXL_EXECBUFFER, qxl_execbuffer_ioctl, DRM_AUTH), 281 DRM_IOCTL_DEF_DRV(QXL_UPDATE_AREA, qxl_update_area_ioctl, DRM_AUTH), 282 DRM_IOCTL_DEF_DRV(QXL_GETPARAM, qxl_getparam_ioctl, DRM_AUTH), 283 DRM_IOCTL_DEF_DRV(QXL_CLIENTCAP, qxl_clientcap_ioctl, DRM_AUTH), 284 DRM_IOCTL_DEF_DRV(QXL_ALLOC_SURF, qxl_alloc_surf_ioctl, DRM_AUTH), 285 }; 286 287 static struct drm_driver qxl_driver = { 288 .driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC | DRIVER_CURSOR_HOTSPOT, 289 290 .dumb_create = qxl_mode_dumb_create, 291 .dumb_map_offset = drm_gem_ttm_dumb_map_offset, 292 #if defined(CONFIG_DEBUG_FS) 293 .debugfs_init = qxl_debugfs_init, 294 #endif 295 .gem_prime_import_sg_table = qxl_gem_prime_import_sg_table, 296 .fops = &qxl_fops, 297 .ioctls = qxl_ioctls, 298 .num_ioctls = ARRAY_SIZE(qxl_ioctls), 299 .name = DRIVER_NAME, 300 .desc = DRIVER_DESC, 301 .date = DRIVER_DATE, 302 .major = 0, 303 .minor = 1, 304 .patchlevel = 0, 305 306 .release = qxl_drm_release, 307 }; 308 309 drm_module_pci_driver_if_modeset(qxl_pci_driver, qxl_modeset); 310 311 MODULE_AUTHOR(DRIVER_AUTHOR); 312 MODULE_DESCRIPTION(DRIVER_DESC); 313 MODULE_LICENSE("GPL and additional rights"); 314