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f9aa76a8 DA |
1 | /* |
2 | * Copyright 2012 Red Hat <mjg@redhat.com> | |
3 | * | |
4 | * This file is subject to the terms and conditions of the GNU General | |
5 | * Public License version 2. See the file COPYING in the main | |
6 | * directory of this archive for more details. | |
7 | * | |
8 | * Authors: Matthew Garrett | |
9 | * Dave Airlie | |
10 | */ | |
11 | #include <linux/module.h> | |
12 | #include <linux/console.h> | |
760285e7 | 13 | #include <drm/drmP.h> |
2f1e8007 | 14 | #include <drm/drm_crtc_helper.h> |
f9aa76a8 DA |
15 | |
16 | #include "cirrus_drv.h" | |
17 | ||
18 | int cirrus_modeset = -1; | |
7f551b1e | 19 | int cirrus_bpp = 24; |
f9aa76a8 DA |
20 | |
21 | MODULE_PARM_DESC(modeset, "Disable/Enable modesetting"); | |
22 | module_param_named(modeset, cirrus_modeset, int, 0400); | |
7f551b1e TI |
23 | MODULE_PARM_DESC(bpp, "Max bits-per-pixel (default:24)"); |
24 | module_param_named(bpp, cirrus_bpp, int, 0400); | |
f9aa76a8 DA |
25 | |
26 | /* | |
27 | * This is the generic driver code. This binds the driver to the drm core, | |
28 | * which then performs further device association and calls our graphics init | |
29 | * functions | |
30 | */ | |
31 | ||
32 | static struct drm_driver driver; | |
33 | ||
34 | /* only bind to the cirrus chip in qemu */ | |
9baa3c34 | 35 | static const struct pci_device_id pciidlist[] = { |
caf02abf RJ |
36 | { PCI_VENDOR_ID_CIRRUS, PCI_DEVICE_ID_CIRRUS_5446, |
37 | PCI_SUBVENDOR_ID_REDHAT_QUMRANET, PCI_SUBDEVICE_ID_QEMU, | |
38 | 0, 0, 0 }, | |
c0c3e735 OH |
39 | { PCI_VENDOR_ID_CIRRUS, PCI_DEVICE_ID_CIRRUS_5446, PCI_VENDOR_ID_XEN, |
40 | 0x0001, 0, 0, 0 }, | |
f9aa76a8 DA |
41 | {0,} |
42 | }; | |
43 | ||
dedc14e2 | 44 | |
bfb82ff0 | 45 | static int cirrus_kick_out_firmware_fb(struct pci_dev *pdev) |
dedc14e2 DA |
46 | { |
47 | struct apertures_struct *ap; | |
48 | bool primary = false; | |
49 | ||
50 | ap = alloc_apertures(1); | |
bfb82ff0 TR |
51 | if (!ap) |
52 | return -ENOMEM; | |
53 | ||
dedc14e2 DA |
54 | ap->ranges[0].base = pci_resource_start(pdev, 0); |
55 | ap->ranges[0].size = pci_resource_len(pdev, 0); | |
56 | ||
57 | #ifdef CONFIG_X86 | |
58 | primary = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW; | |
59 | #endif | |
44adece5 | 60 | drm_fb_helper_remove_conflicting_framebuffers(ap, "cirrusdrmfb", primary); |
dedc14e2 | 61 | kfree(ap); |
bfb82ff0 TR |
62 | |
63 | return 0; | |
dedc14e2 DA |
64 | } |
65 | ||
56550d94 GKH |
66 | static int cirrus_pci_probe(struct pci_dev *pdev, |
67 | const struct pci_device_id *ent) | |
f9aa76a8 | 68 | { |
bfb82ff0 TR |
69 | int ret; |
70 | ||
71 | ret = cirrus_kick_out_firmware_fb(pdev); | |
72 | if (ret) | |
73 | return ret; | |
dedc14e2 | 74 | |
f9aa76a8 DA |
75 | return drm_get_pci_dev(pdev, ent, &driver); |
76 | } | |
77 | ||
78 | static void cirrus_pci_remove(struct pci_dev *pdev) | |
79 | { | |
80 | struct drm_device *dev = pci_get_drvdata(pdev); | |
81 | ||
82 | drm_put_dev(dev); | |
83 | } | |
84 | ||
8f8e7e14 | 85 | #ifdef CONFIG_PM_SLEEP |
2f1e8007 GH |
86 | static int cirrus_pm_suspend(struct device *dev) |
87 | { | |
88 | struct pci_dev *pdev = to_pci_dev(dev); | |
89 | struct drm_device *drm_dev = pci_get_drvdata(pdev); | |
90 | struct cirrus_device *cdev = drm_dev->dev_private; | |
91 | ||
92 | drm_kms_helper_poll_disable(drm_dev); | |
93 | ||
94 | if (cdev->mode_info.gfbdev) { | |
95 | console_lock(); | |
2b9e6e37 | 96 | drm_fb_helper_set_suspend(&cdev->mode_info.gfbdev->helper, 1); |
2f1e8007 GH |
97 | console_unlock(); |
98 | } | |
99 | ||
100 | return 0; | |
101 | } | |
102 | ||
103 | static int cirrus_pm_resume(struct device *dev) | |
104 | { | |
105 | struct pci_dev *pdev = to_pci_dev(dev); | |
106 | struct drm_device *drm_dev = pci_get_drvdata(pdev); | |
107 | struct cirrus_device *cdev = drm_dev->dev_private; | |
108 | ||
109 | drm_helper_resume_force_mode(drm_dev); | |
110 | ||
111 | if (cdev->mode_info.gfbdev) { | |
112 | console_lock(); | |
2b9e6e37 | 113 | drm_fb_helper_set_suspend(&cdev->mode_info.gfbdev->helper, 0); |
2f1e8007 GH |
114 | console_unlock(); |
115 | } | |
116 | ||
117 | drm_kms_helper_poll_enable(drm_dev); | |
118 | return 0; | |
119 | } | |
8f8e7e14 | 120 | #endif |
2f1e8007 | 121 | |
f9aa76a8 DA |
122 | static const struct file_operations cirrus_driver_fops = { |
123 | .owner = THIS_MODULE, | |
124 | .open = drm_open, | |
125 | .release = drm_release, | |
126 | .unlocked_ioctl = drm_ioctl, | |
127 | .mmap = cirrus_mmap, | |
128 | .poll = drm_poll, | |
804d74ab KP |
129 | #ifdef CONFIG_COMPAT |
130 | .compat_ioctl = drm_compat_ioctl, | |
131 | #endif | |
f9aa76a8 DA |
132 | }; |
133 | static struct drm_driver driver = { | |
28185647 | 134 | .driver_features = DRIVER_MODESET | DRIVER_GEM, |
f9aa76a8 DA |
135 | .load = cirrus_driver_load, |
136 | .unload = cirrus_driver_unload, | |
915b4d11 | 137 | .set_busid = drm_pci_set_busid, |
f9aa76a8 DA |
138 | .fops = &cirrus_driver_fops, |
139 | .name = DRIVER_NAME, | |
140 | .desc = DRIVER_DESC, | |
141 | .date = DRIVER_DATE, | |
142 | .major = DRIVER_MAJOR, | |
143 | .minor = DRIVER_MINOR, | |
144 | .patchlevel = DRIVER_PATCHLEVEL, | |
f5993eeb | 145 | .gem_free_object_unlocked = cirrus_gem_free_object, |
f9aa76a8 DA |
146 | .dumb_create = cirrus_dumb_create, |
147 | .dumb_map_offset = cirrus_dumb_mmap_offset, | |
43387b37 | 148 | .dumb_destroy = drm_gem_dumb_destroy, |
f9aa76a8 DA |
149 | }; |
150 | ||
2f1e8007 GH |
151 | static const struct dev_pm_ops cirrus_pm_ops = { |
152 | SET_SYSTEM_SLEEP_PM_OPS(cirrus_pm_suspend, | |
153 | cirrus_pm_resume) | |
154 | }; | |
155 | ||
f9aa76a8 DA |
156 | static struct pci_driver cirrus_pci_driver = { |
157 | .name = DRIVER_NAME, | |
158 | .id_table = pciidlist, | |
159 | .probe = cirrus_pci_probe, | |
160 | .remove = cirrus_pci_remove, | |
2f1e8007 | 161 | .driver.pm = &cirrus_pm_ops, |
f9aa76a8 DA |
162 | }; |
163 | ||
164 | static int __init cirrus_init(void) | |
165 | { | |
166 | if (vgacon_text_force() && cirrus_modeset == -1) | |
167 | return -EINVAL; | |
168 | ||
169 | if (cirrus_modeset == 0) | |
170 | return -EINVAL; | |
171 | return drm_pci_init(&driver, &cirrus_pci_driver); | |
172 | } | |
173 | ||
174 | static void __exit cirrus_exit(void) | |
175 | { | |
176 | drm_pci_exit(&driver, &cirrus_pci_driver); | |
177 | } | |
178 | ||
179 | module_init(cirrus_init); | |
180 | module_exit(cirrus_exit); | |
181 | ||
182 | MODULE_DEVICE_TABLE(pci, pciidlist); | |
183 | MODULE_AUTHOR(DRIVER_AUTHOR); | |
184 | MODULE_DESCRIPTION(DRIVER_DESC); | |
185 | MODULE_LICENSE("GPL"); |