tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1// SPDX-License-Identifier: MIT
2/*
3 * Copyright (C) 2013-2017 Oracle Corporation
4 * This file is based on ast_drv.c
5 * Copyright 2012 Red Hat Inc.
6 * Authors: Dave Airlie <airlied@redhat.com>
7 * Michael Thayer <michael.thayer@oracle.com,
8 * Hans de Goede <hdegoede@redhat.com>
9 */
10
11#include <linux/aperture.h>
12#include <linux/module.h>
13#include <linux/pci.h>
14#include <linux/vt_kern.h>
15
16#include <drm/clients/drm_client_setup.h>
17#include <drm/drm_atomic_helper.h>
18#include <drm/drm_drv.h>
19#include <drm/drm_fbdev_ttm.h>
20#include <drm/drm_file.h>
21#include <drm/drm_ioctl.h>
22#include <drm/drm_managed.h>
23#include <drm/drm_modeset_helper.h>
24#include <drm/drm_module.h>
25
26#include "vbox_drv.h"
27
28static int vbox_modeset = -1;
29
30MODULE_PARM_DESC(modeset, "Disable/Enable modesetting");
31module_param_named(modeset, vbox_modeset, int, 0400);
32
33static const struct drm_driver driver;
34
35static const struct pci_device_id pciidlist[] = {
36 { PCI_DEVICE(0x80ee, 0xbeef) },
37 { }
38};
39MODULE_DEVICE_TABLE(pci, pciidlist);
40
41static int vbox_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
42{
43 struct vbox_private *vbox;
44 int ret = 0;
45
46 if (!vbox_check_supported(VBE_DISPI_ID_HGSMI))
47 return -ENODEV;
48
49 ret = aperture_remove_conflicting_pci_devices(pdev, driver.name);
50 if (ret)
51 return ret;
52
53 vbox = devm_drm_dev_alloc(&pdev->dev, &driver,
54 struct vbox_private, ddev);
55 if (IS_ERR(vbox))
56 return PTR_ERR(vbox);
57
58 pci_set_drvdata(pdev, vbox);
59 mutex_init(&vbox->hw_mutex);
60
61 ret = pcim_enable_device(pdev);
62 if (ret)
63 return ret;
64
65 ret = vbox_hw_init(vbox);
66 if (ret)
67 return ret;
68
69 ret = vbox_mm_init(vbox);
70 if (ret)
71 goto err_hw_fini;
72
73 ret = vbox_mode_init(vbox);
74 if (ret)
75 goto err_hw_fini;
76
77 ret = vbox_irq_init(vbox);
78 if (ret)
79 goto err_mode_fini;
80
81 ret = drm_dev_register(&vbox->ddev, 0);
82 if (ret)
83 goto err_irq_fini;
84
85 drm_client_setup(&vbox->ddev, NULL);
86
87 return 0;
88
89err_irq_fini:
90 vbox_irq_fini(vbox);
91err_mode_fini:
92 vbox_mode_fini(vbox);
93err_hw_fini:
94 vbox_hw_fini(vbox);
95 return ret;
96}
97
98static void vbox_pci_remove(struct pci_dev *pdev)
99{
100 struct vbox_private *vbox = pci_get_drvdata(pdev);
101
102 drm_dev_unregister(&vbox->ddev);
103 drm_atomic_helper_shutdown(&vbox->ddev);
104 vbox_irq_fini(vbox);
105 vbox_mode_fini(vbox);
106 vbox_hw_fini(vbox);
107}
108
109static void vbox_pci_shutdown(struct pci_dev *pdev)
110{
111 struct vbox_private *vbox = pci_get_drvdata(pdev);
112
113 drm_atomic_helper_shutdown(&vbox->ddev);
114}
115
116static int vbox_pm_suspend(struct device *dev)
117{
118 struct vbox_private *vbox = dev_get_drvdata(dev);
119 struct pci_dev *pdev = to_pci_dev(dev);
120 int error;
121
122 error = drm_mode_config_helper_suspend(&vbox->ddev);
123 if (error)
124 return error;
125
126 pci_save_state(pdev);
127 pci_disable_device(pdev);
128 pci_set_power_state(pdev, PCI_D3hot);
129
130 return 0;
131}
132
133static int vbox_pm_resume(struct device *dev)
134{
135 struct vbox_private *vbox = dev_get_drvdata(dev);
136 struct pci_dev *pdev = to_pci_dev(dev);
137
138 if (pci_enable_device(pdev))
139 return -EIO;
140
141 return drm_mode_config_helper_resume(&vbox->ddev);
142}
143
144static int vbox_pm_freeze(struct device *dev)
145{
146 struct vbox_private *vbox = dev_get_drvdata(dev);
147
148 return drm_mode_config_helper_suspend(&vbox->ddev);
149}
150
151static int vbox_pm_thaw(struct device *dev)
152{
153 struct vbox_private *vbox = dev_get_drvdata(dev);
154
155 return drm_mode_config_helper_resume(&vbox->ddev);
156}
157
158static int vbox_pm_poweroff(struct device *dev)
159{
160 struct vbox_private *vbox = dev_get_drvdata(dev);
161
162 return drm_mode_config_helper_suspend(&vbox->ddev);
163}
164
165static const struct dev_pm_ops vbox_pm_ops = {
166 .suspend = vbox_pm_suspend,
167 .resume = vbox_pm_resume,
168 .freeze = vbox_pm_freeze,
169 .thaw = vbox_pm_thaw,
170 .poweroff = vbox_pm_poweroff,
171 .restore = vbox_pm_resume,
172};
173
174static struct pci_driver vbox_pci_driver = {
175 .name = DRIVER_NAME,
176 .id_table = pciidlist,
177 .probe = vbox_pci_probe,
178 .remove = vbox_pci_remove,
179 .shutdown = vbox_pci_shutdown,
180 .driver.pm = pm_sleep_ptr(&vbox_pm_ops),
181};
182
183DEFINE_DRM_GEM_FOPS(vbox_fops);
184
185static const struct drm_driver driver = {
186 .driver_features =
187 DRIVER_MODESET | DRIVER_GEM | DRIVER_ATOMIC | DRIVER_CURSOR_HOTSPOT,
188
189 .fops = &vbox_fops,
190 .name = DRIVER_NAME,
191 .desc = DRIVER_DESC,
192 .major = DRIVER_MAJOR,
193 .minor = DRIVER_MINOR,
194 .patchlevel = DRIVER_PATCHLEVEL,
195
196 DRM_GEM_VRAM_DRIVER,
197 DRM_FBDEV_TTM_DRIVER_OPS,
198};
199
200drm_module_pci_driver_if_modeset(vbox_pci_driver, vbox_modeset);
201
202MODULE_AUTHOR("Oracle Corporation");
203MODULE_AUTHOR("Hans de Goede <hdegoede@redhat.com>");
204MODULE_DESCRIPTION(DRIVER_DESC);
205MODULE_LICENSE("GPL and additional rights");