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1/*
2 * Copyright 2012 Red Hat Inc.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the
6 * "Software"), to deal in the Software without restriction, including
7 * without limitation the rights to use, copy, modify, merge, publish,
8 * distribute, sub license, and/or sell copies of the Software, and to
9 * permit persons to whom the Software is furnished to do so, subject to
10 * the following conditions:
11 *
12 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
13 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
14 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
15 * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
16 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
17 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
18 * USE OR OTHER DEALINGS IN THE SOFTWARE.
19 *
20 * The above copyright notice and this permission notice (including the
21 * next paragraph) shall be included in all copies or substantial portions
22 * of the Software.
23 *
24 */
25/*
26 * Authors: Dave Airlie <airlied@redhat.com>
27 */
28
29#include <linux/console.h>
30#include <linux/module.h>
31#include <linux/pci.h>
32
33#include <drm/drm_crtc_helper.h>
34#include <drm/drm_drv.h>
35#include <drm/drm_fb_helper.h>
36#include <drm/drm_gem_vram_helper.h>
37#include <drm/drm_probe_helper.h>
38
39#include "ast_drv.h"
40
41int ast_modeset = -1;
42
43MODULE_PARM_DESC(modeset, "Disable/Enable modesetting");
44module_param_named(modeset, ast_modeset, int, 0400);
45
46#define PCI_VENDOR_ASPEED 0x1a03
47
48static struct drm_driver driver;
49
50#define AST_VGA_DEVICE(id, info) { \
51 .class = PCI_BASE_CLASS_DISPLAY << 16, \
52 .class_mask = 0xff0000, \
53 .vendor = PCI_VENDOR_ASPEED, \
54 .device = id, \
55 .subvendor = PCI_ANY_ID, \
56 .subdevice = PCI_ANY_ID, \
57 .driver_data = (unsigned long) info }
58
59static const struct pci_device_id pciidlist[] = {
60 AST_VGA_DEVICE(PCI_CHIP_AST2000, NULL),
61 AST_VGA_DEVICE(PCI_CHIP_AST2100, NULL),
62 {0, 0, 0},
63};
64
65MODULE_DEVICE_TABLE(pci, pciidlist);
66
67static void ast_kick_out_firmware_fb(struct pci_dev *pdev)
68{
69 struct apertures_struct *ap;
70 bool primary = false;
71
72 ap = alloc_apertures(1);
73 if (!ap)
74 return;
75
76 ap->ranges[0].base = pci_resource_start(pdev, 0);
77 ap->ranges[0].size = pci_resource_len(pdev, 0);
78
79#ifdef CONFIG_X86
80 primary = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
81#endif
82 drm_fb_helper_remove_conflicting_framebuffers(ap, "astdrmfb", primary);
83 kfree(ap);
84}
85
86static int ast_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
87{
88 struct drm_device *dev;
89 int ret;
90
91 ast_kick_out_firmware_fb(pdev);
92
93 ret = pcim_enable_device(pdev);
94 if (ret)
95 return ret;
96
97 dev = drm_dev_alloc(&driver, &pdev->dev);
98 if (IS_ERR(dev))
99 return PTR_ERR(dev);
100
101 dev->pdev = pdev;
102 pci_set_drvdata(pdev, dev);
103
104 ret = ast_driver_load(dev, ent->driver_data);
105 if (ret)
106 goto err_drm_dev_put;
107
108 ret = drm_dev_register(dev, ent->driver_data);
109 if (ret)
110 goto err_ast_driver_unload;
111
112 drm_fbdev_generic_setup(dev, 32);
113
114 return 0;
115
116err_ast_driver_unload:
117 ast_driver_unload(dev);
118err_drm_dev_put:
119 drm_dev_put(dev);
120 return ret;
121
122}
123
124static void
125ast_pci_remove(struct pci_dev *pdev)
126{
127 struct drm_device *dev = pci_get_drvdata(pdev);
128
129 drm_dev_unregister(dev);
130 ast_driver_unload(dev);
131 drm_dev_put(dev);
132}
133
134static int ast_drm_freeze(struct drm_device *dev)
135{
136 int error;
137
138 error = drm_mode_config_helper_suspend(dev);
139 if (error)
140 return error;
141 pci_save_state(dev->pdev);
142 return 0;
143}
144
145static int ast_drm_thaw(struct drm_device *dev)
146{
147 ast_post_gpu(dev);
148
149 return drm_mode_config_helper_resume(dev);
150}
151
152static int ast_drm_resume(struct drm_device *dev)
153{
154 int ret;
155
156 if (pci_enable_device(dev->pdev))
157 return -EIO;
158
159 ret = ast_drm_thaw(dev);
160 if (ret)
161 return ret;
162 return 0;
163}
164
165static int ast_pm_suspend(struct device *dev)
166{
167 struct pci_dev *pdev = to_pci_dev(dev);
168 struct drm_device *ddev = pci_get_drvdata(pdev);
169 int error;
170
171 error = ast_drm_freeze(ddev);
172 if (error)
173 return error;
174
175 pci_disable_device(pdev);
176 pci_set_power_state(pdev, PCI_D3hot);
177 return 0;
178}
179
180static int ast_pm_resume(struct device *dev)
181{
182 struct pci_dev *pdev = to_pci_dev(dev);
183 struct drm_device *ddev = pci_get_drvdata(pdev);
184 return ast_drm_resume(ddev);
185}
186
187static int ast_pm_freeze(struct device *dev)
188{
189 struct pci_dev *pdev = to_pci_dev(dev);
190 struct drm_device *ddev = pci_get_drvdata(pdev);
191 return ast_drm_freeze(ddev);
192}
193
194static int ast_pm_thaw(struct device *dev)
195{
196 struct pci_dev *pdev = to_pci_dev(dev);
197 struct drm_device *ddev = pci_get_drvdata(pdev);
198 return ast_drm_thaw(ddev);
199}
200
201static int ast_pm_poweroff(struct device *dev)
202{
203 struct pci_dev *pdev = to_pci_dev(dev);
204 struct drm_device *ddev = pci_get_drvdata(pdev);
205
206 return ast_drm_freeze(ddev);
207}
208
209static const struct dev_pm_ops ast_pm_ops = {
210 .suspend = ast_pm_suspend,
211 .resume = ast_pm_resume,
212 .freeze = ast_pm_freeze,
213 .thaw = ast_pm_thaw,
214 .poweroff = ast_pm_poweroff,
215 .restore = ast_pm_resume,
216};
217
218static struct pci_driver ast_pci_driver = {
219 .name = DRIVER_NAME,
220 .id_table = pciidlist,
221 .probe = ast_pci_probe,
222 .remove = ast_pci_remove,
223 .driver.pm = &ast_pm_ops,
224};
225
226DEFINE_DRM_GEM_FOPS(ast_fops);
227
228static struct drm_driver driver = {
229 .driver_features = DRIVER_ATOMIC |
230 DRIVER_GEM |
231 DRIVER_MODESET,
232
233 .fops = &ast_fops,
234 .name = DRIVER_NAME,
235 .desc = DRIVER_DESC,
236 .date = DRIVER_DATE,
237 .major = DRIVER_MAJOR,
238 .minor = DRIVER_MINOR,
239 .patchlevel = DRIVER_PATCHLEVEL,
240
241 DRM_GEM_VRAM_DRIVER
242};
243
244static int __init ast_init(void)
245{
246 if (vgacon_text_force() && ast_modeset == -1)
247 return -EINVAL;
248
249 if (ast_modeset == 0)
250 return -EINVAL;
251 return pci_register_driver(&ast_pci_driver);
252}
253static void __exit ast_exit(void)
254{
255 pci_unregister_driver(&ast_pci_driver);
256}
257
258module_init(ast_init);
259module_exit(ast_exit);
260
261MODULE_AUTHOR(DRIVER_AUTHOR);
262MODULE_DESCRIPTION(DRIVER_DESC);
263MODULE_LICENSE("GPL and additional rights");
264
1/*
2 * Copyright 2012 Red Hat Inc.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the
6 * "Software"), to deal in the Software without restriction, including
7 * without limitation the rights to use, copy, modify, merge, publish,
8 * distribute, sub license, and/or sell copies of the Software, and to
9 * permit persons to whom the Software is furnished to do so, subject to
10 * the following conditions:
11 *
12 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
13 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
14 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
15 * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
16 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
17 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
18 * USE OR OTHER DEALINGS IN THE SOFTWARE.
19 *
20 * The above copyright notice and this permission notice (including the
21 * next paragraph) shall be included in all copies or substantial portions
22 * of the Software.
23 *
24 */
25/*
26 * Authors: Dave Airlie <airlied@redhat.com>
27 */
28#include <linux/module.h>
29#include <linux/console.h>
30
31#include <drm/drmP.h>
32#include <drm/drm_crtc_helper.h>
33
34#include "ast_drv.h"
35
36int ast_modeset = -1;
37
38MODULE_PARM_DESC(modeset, "Disable/Enable modesetting");
39module_param_named(modeset, ast_modeset, int, 0400);
40
41#define PCI_VENDOR_ASPEED 0x1a03
42
43static struct drm_driver driver;
44
45#define AST_VGA_DEVICE(id, info) { \
46 .class = PCI_BASE_CLASS_DISPLAY << 16, \
47 .class_mask = 0xff0000, \
48 .vendor = PCI_VENDOR_ASPEED, \
49 .device = id, \
50 .subvendor = PCI_ANY_ID, \
51 .subdevice = PCI_ANY_ID, \
52 .driver_data = (unsigned long) info }
53
54static const struct pci_device_id pciidlist[] = {
55 AST_VGA_DEVICE(PCI_CHIP_AST2000, NULL),
56 AST_VGA_DEVICE(PCI_CHIP_AST2100, NULL),
57 /* AST_VGA_DEVICE(PCI_CHIP_AST1180, NULL), - don't bind to 1180 for now */
58 {0, 0, 0},
59};
60
61MODULE_DEVICE_TABLE(pci, pciidlist);
62
63static int ast_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
64{
65 return drm_get_pci_dev(pdev, ent, &driver);
66}
67
68static void
69ast_pci_remove(struct pci_dev *pdev)
70{
71 struct drm_device *dev = pci_get_drvdata(pdev);
72
73 drm_put_dev(dev);
74}
75
76
77
78static int ast_drm_freeze(struct drm_device *dev)
79{
80 drm_kms_helper_poll_disable(dev);
81
82 pci_save_state(dev->pdev);
83
84 console_lock();
85 ast_fbdev_set_suspend(dev, 1);
86 console_unlock();
87 return 0;
88}
89
90static int ast_drm_thaw(struct drm_device *dev)
91{
92 int error = 0;
93
94 ast_post_gpu(dev);
95
96 drm_mode_config_reset(dev);
97 drm_helper_resume_force_mode(dev);
98
99 console_lock();
100 ast_fbdev_set_suspend(dev, 0);
101 console_unlock();
102 return error;
103}
104
105static int ast_drm_resume(struct drm_device *dev)
106{
107 int ret;
108
109 if (pci_enable_device(dev->pdev))
110 return -EIO;
111
112 ret = ast_drm_thaw(dev);
113 if (ret)
114 return ret;
115
116 drm_kms_helper_poll_enable(dev);
117 return 0;
118}
119
120static int ast_pm_suspend(struct device *dev)
121{
122 struct pci_dev *pdev = to_pci_dev(dev);
123 struct drm_device *ddev = pci_get_drvdata(pdev);
124 int error;
125
126 error = ast_drm_freeze(ddev);
127 if (error)
128 return error;
129
130 pci_disable_device(pdev);
131 pci_set_power_state(pdev, PCI_D3hot);
132 return 0;
133}
134static int ast_pm_resume(struct device *dev)
135{
136 struct pci_dev *pdev = to_pci_dev(dev);
137 struct drm_device *ddev = pci_get_drvdata(pdev);
138 return ast_drm_resume(ddev);
139}
140
141static int ast_pm_freeze(struct device *dev)
142{
143 struct pci_dev *pdev = to_pci_dev(dev);
144 struct drm_device *ddev = pci_get_drvdata(pdev);
145
146 if (!ddev || !ddev->dev_private)
147 return -ENODEV;
148 return ast_drm_freeze(ddev);
149
150}
151
152static int ast_pm_thaw(struct device *dev)
153{
154 struct pci_dev *pdev = to_pci_dev(dev);
155 struct drm_device *ddev = pci_get_drvdata(pdev);
156 return ast_drm_thaw(ddev);
157}
158
159static int ast_pm_poweroff(struct device *dev)
160{
161 struct pci_dev *pdev = to_pci_dev(dev);
162 struct drm_device *ddev = pci_get_drvdata(pdev);
163
164 return ast_drm_freeze(ddev);
165}
166
167static const struct dev_pm_ops ast_pm_ops = {
168 .suspend = ast_pm_suspend,
169 .resume = ast_pm_resume,
170 .freeze = ast_pm_freeze,
171 .thaw = ast_pm_thaw,
172 .poweroff = ast_pm_poweroff,
173 .restore = ast_pm_resume,
174};
175
176static struct pci_driver ast_pci_driver = {
177 .name = DRIVER_NAME,
178 .id_table = pciidlist,
179 .probe = ast_pci_probe,
180 .remove = ast_pci_remove,
181 .driver.pm = &ast_pm_ops,
182};
183
184static const struct file_operations ast_fops = {
185 .owner = THIS_MODULE,
186 .open = drm_open,
187 .release = drm_release,
188 .unlocked_ioctl = drm_ioctl,
189 .mmap = ast_mmap,
190 .poll = drm_poll,
191 .compat_ioctl = drm_compat_ioctl,
192 .read = drm_read,
193};
194
195static struct drm_driver driver = {
196 .driver_features = DRIVER_MODESET | DRIVER_GEM,
197
198 .load = ast_driver_load,
199 .unload = ast_driver_unload,
200 .set_busid = drm_pci_set_busid,
201
202 .fops = &ast_fops,
203 .name = DRIVER_NAME,
204 .desc = DRIVER_DESC,
205 .date = DRIVER_DATE,
206 .major = DRIVER_MAJOR,
207 .minor = DRIVER_MINOR,
208 .patchlevel = DRIVER_PATCHLEVEL,
209
210 .gem_free_object_unlocked = ast_gem_free_object,
211 .dumb_create = ast_dumb_create,
212 .dumb_map_offset = ast_dumb_mmap_offset,
213 .dumb_destroy = drm_gem_dumb_destroy,
214
215};
216
217static int __init ast_init(void)
218{
219 if (vgacon_text_force() && ast_modeset == -1)
220 return -EINVAL;
221
222 if (ast_modeset == 0)
223 return -EINVAL;
224 return drm_pci_init(&driver, &ast_pci_driver);
225}
226static void __exit ast_exit(void)
227{
228 drm_pci_exit(&driver, &ast_pci_driver);
229}
230
231module_init(ast_init);
232module_exit(ast_exit);
233
234MODULE_AUTHOR(DRIVER_AUTHOR);
235MODULE_DESCRIPTION(DRIVER_DESC);
236MODULE_LICENSE("GPL and additional rights");
237