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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 a7 * copy of this software and associated documentation files (the "Software"),8 * to deal in the Software without restriction, including without limitation9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,10 * and/or sell copies of the Software, and to permit persons to whom the11 * Software is furnished to do so, subject to the following conditions:12 *13 * The above copyright notice and this permission notice (including the next14 * paragraph) shall be included in all copies or substantial portions of the15 * Software.16 *17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL20 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR21 * 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 OR23 * 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_ttm.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 50static 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};57MODULE_DEVICE_TABLE(pci, pciidlist);58 59static int qxl_modeset = -1;60int qxl_num_crtc = 4;61 62MODULE_PARM_DESC(modeset, "Disable/Enable modesetting");63module_param_named(modeset, qxl_modeset, int, 0400);64 65MODULE_PARM_DESC(num_heads, "Number of virtual crtcs to expose (default 4)");66module_param_named(num_heads, qxl_num_crtc, int, 0400);67 68static struct drm_driver qxl_driver;69static struct pci_driver qxl_pci_driver;70 71static int72qxl_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_ttm_setup(&qdev->ddev, 32);122 return 0;123 124modeset_cleanup:125 qxl_modeset_fini(qdev);126unload:127 qxl_device_fini(qdev);128put_vga:129 if (pci_is_vga(pdev) && pdev->revision < 5)130 vga_put(pdev, VGA_RSRC_LEGACY_IO);131disable_pci:132 pci_disable_device(pdev);133 134 return ret;135}136 137static 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 is144 * non-trivial though.145 */146 qxl_modeset_fini(qdev);147 qxl_device_fini(qdev);148}149 150static void151qxl_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 161static void162qxl_pci_shutdown(struct pci_dev *pdev)163{164 drm_atomic_helper_shutdown(pci_get_drvdata(pdev));165}166 167DEFINE_DRM_GEM_FOPS(qxl_fops);168 169static 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 192static 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 205static 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 220static 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 236static 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 243static 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 250static 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 260static 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};268static 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 277static 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 287static 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#endif295 .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 309drm_module_pci_driver_if_modeset(qxl_pci_driver, qxl_modeset);310 311MODULE_AUTHOR(DRIVER_AUTHOR);312MODULE_DESCRIPTION(DRIVER_DESC);313MODULE_LICENSE("GPL and additional rights");314