266 lines
6.7 KiB
C
266 lines
6.7 KiB
C
/* vim: set ts=8 sw=8 tw=78 ai noexpandtab */
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/* qxl_drv.c -- QXL driver -*- linux-c -*-
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*
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* Copyright 2011 Red Hat, Inc.
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* Authors:
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* Dave Airlie <airlie@redhat.com>
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* Alon Levy <alevy@redhat.com>
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*/
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#include <linux/module.h>
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#include <linux/console.h>
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#include "drmP.h"
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#include "drm/drm.h"
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#include "drm_crtc_helper.h"
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#include "qxl_drv.h"
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#include "qxl_object.h"
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extern int qxl_max_ioctls;
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static DEFINE_PCI_DEVICE_TABLE(pciidlist) = {
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{ 0x1b36, 0x100, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8,
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0xffff00, 0 },
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{ 0x1b36, 0x100, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_OTHER << 8,
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0xffff00, 0 },
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{ 0, 0, 0 },
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};
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MODULE_DEVICE_TABLE(pci, pciidlist);
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static int qxl_modeset = -1;
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int qxl_num_crtc = 4;
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MODULE_PARM_DESC(modeset, "Disable/Enable modesetting");
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module_param_named(modeset, qxl_modeset, int, 0400);
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MODULE_PARM_DESC(num_heads, "Number of virtual crtcs to expose (default 4)");
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module_param_named(num_heads, qxl_num_crtc, int, 0400);
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static struct drm_driver qxl_driver;
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static struct pci_driver qxl_pci_driver;
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static int
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qxl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
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{
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if (pdev->revision < 4) {
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DRM_ERROR("qxl too old, doesn't support client_monitors_config,"
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" use xf86-video-qxl in user mode");
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return -EINVAL; /* TODO: ENODEV ? */
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}
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return drm_get_pci_dev(pdev, ent, &qxl_driver);
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}
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static void
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qxl_pci_remove(struct pci_dev *pdev)
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{
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struct drm_device *dev = pci_get_drvdata(pdev);
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drm_put_dev(dev);
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}
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static const struct file_operations qxl_fops = {
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.owner = THIS_MODULE,
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.open = drm_open,
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.release = drm_release,
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.unlocked_ioctl = drm_ioctl,
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.poll = drm_poll,
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.mmap = qxl_mmap,
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};
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static int qxl_drm_freeze(struct drm_device *dev)
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{
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struct pci_dev *pdev = dev->pdev;
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struct qxl_device *qdev = dev->dev_private;
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struct drm_crtc *crtc;
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drm_kms_helper_poll_disable(dev);
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console_lock();
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qxl_fbdev_set_suspend(qdev, 1);
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console_unlock();
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/* unpin the front buffers */
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list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
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struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private;
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if (crtc->enabled)
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(*crtc_funcs->disable)(crtc);
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}
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qxl_destroy_monitors_object(qdev);
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qxl_surf_evict(qdev);
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qxl_vram_evict(qdev);
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while (!qxl_check_idle(qdev->command_ring));
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while (!qxl_check_idle(qdev->release_ring))
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qxl_queue_garbage_collect(qdev, 1);
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pci_save_state(pdev);
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return 0;
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}
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static int qxl_drm_resume(struct drm_device *dev, bool thaw)
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{
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struct qxl_device *qdev = dev->dev_private;
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qdev->ram_header->int_mask = QXL_INTERRUPT_MASK;
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if (!thaw) {
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qxl_reinit_memslots(qdev);
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qxl_ring_init_hdr(qdev->release_ring);
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}
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qxl_create_monitors_object(qdev);
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drm_helper_resume_force_mode(dev);
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console_lock();
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qxl_fbdev_set_suspend(qdev, 0);
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console_unlock();
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drm_kms_helper_poll_enable(dev);
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return 0;
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}
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static int qxl_pm_suspend(struct device *dev)
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{
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struct pci_dev *pdev = to_pci_dev(dev);
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struct drm_device *drm_dev = pci_get_drvdata(pdev);
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int error;
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error = qxl_drm_freeze(drm_dev);
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if (error)
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return error;
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pci_disable_device(pdev);
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pci_set_power_state(pdev, PCI_D3hot);
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return 0;
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}
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static int qxl_pm_resume(struct device *dev)
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{
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struct pci_dev *pdev = to_pci_dev(dev);
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struct drm_device *drm_dev = pci_get_drvdata(pdev);
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pci_set_power_state(pdev, PCI_D0);
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pci_restore_state(pdev);
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if (pci_enable_device(pdev)) {
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return -EIO;
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}
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return qxl_drm_resume(drm_dev, false);
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}
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static int qxl_pm_thaw(struct device *dev)
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{
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struct pci_dev *pdev = to_pci_dev(dev);
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struct drm_device *drm_dev = pci_get_drvdata(pdev);
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return qxl_drm_resume(drm_dev, true);
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}
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static int qxl_pm_freeze(struct device *dev)
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{
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struct pci_dev *pdev = to_pci_dev(dev);
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struct drm_device *drm_dev = pci_get_drvdata(pdev);
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return qxl_drm_freeze(drm_dev);
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}
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static int qxl_pm_restore(struct device *dev)
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{
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struct pci_dev *pdev = to_pci_dev(dev);
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struct drm_device *drm_dev = pci_get_drvdata(pdev);
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struct qxl_device *qdev = drm_dev->dev_private;
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qxl_io_reset(qdev);
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return qxl_drm_resume(drm_dev, false);
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}
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static const struct dev_pm_ops qxl_pm_ops = {
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.suspend = qxl_pm_suspend,
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.resume = qxl_pm_resume,
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.freeze = qxl_pm_freeze,
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.thaw = qxl_pm_thaw,
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.poweroff = qxl_pm_freeze,
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.restore = qxl_pm_restore,
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};
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static struct pci_driver qxl_pci_driver = {
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.name = DRIVER_NAME,
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.id_table = pciidlist,
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.probe = qxl_pci_probe,
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.remove = qxl_pci_remove,
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.driver.pm = &qxl_pm_ops,
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};
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static struct drm_driver qxl_driver = {
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.driver_features = DRIVER_GEM | DRIVER_MODESET |
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DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED,
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.dev_priv_size = 0,
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.load = qxl_driver_load,
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.unload = qxl_driver_unload,
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.dumb_create = qxl_mode_dumb_create,
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.dumb_map_offset = qxl_mode_dumb_mmap,
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.dumb_destroy = drm_gem_dumb_destroy,
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#if defined(CONFIG_DEBUG_FS)
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.debugfs_init = qxl_debugfs_init,
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.debugfs_cleanup = qxl_debugfs_takedown,
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#endif
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.gem_free_object = qxl_gem_object_free,
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.gem_open_object = qxl_gem_object_open,
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.gem_close_object = qxl_gem_object_close,
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.fops = &qxl_fops,
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.ioctls = qxl_ioctls,
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.irq_handler = qxl_irq_handler,
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.name = DRIVER_NAME,
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.desc = DRIVER_DESC,
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.date = DRIVER_DATE,
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.major = 0,
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.minor = 1,
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.patchlevel = 0,
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};
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static int __init qxl_init(void)
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{
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#ifdef CONFIG_VGA_CONSOLE
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if (vgacon_text_force() && qxl_modeset == -1)
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return -EINVAL;
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#endif
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if (qxl_modeset == 0)
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return -EINVAL;
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qxl_driver.num_ioctls = qxl_max_ioctls;
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return drm_pci_init(&qxl_driver, &qxl_pci_driver);
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}
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static void __exit qxl_exit(void)
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{
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drm_pci_exit(&qxl_driver, &qxl_pci_driver);
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}
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module_init(qxl_init);
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module_exit(qxl_exit);
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MODULE_AUTHOR(DRIVER_AUTHOR);
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MODULE_DESCRIPTION(DRIVER_DESC);
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MODULE_LICENSE("GPL and additional rights");
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