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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
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_gem_vram_helper.h>
36#include <drm/drm_pci.h>
37#include <drm/drm_probe_helper.h>
38#include <drm/drm_vram_mm_helper.h>
39
40#include "ast_drv.h"
41
42int ast_modeset = -1;
43
44MODULE_PARM_DESC(modeset, "Disable/Enable modesetting");
45module_param_named(modeset, ast_modeset, int, 0400);
46
47#define PCI_VENDOR_ASPEED 0x1a03
48
49static struct drm_driver driver;
50
51#define AST_VGA_DEVICE(id, info) { \
52 .class = PCI_BASE_CLASS_DISPLAY << 16, \
53 .class_mask = 0xff0000, \
54 .vendor = PCI_VENDOR_ASPEED, \
55 .device = id, \
56 .subvendor = PCI_ANY_ID, \
57 .subdevice = PCI_ANY_ID, \
58 .driver_data = (unsigned long) info }
59
60static const struct pci_device_id pciidlist[] = {
61 AST_VGA_DEVICE(PCI_CHIP_AST2000, NULL),
62 AST_VGA_DEVICE(PCI_CHIP_AST2100, NULL),
63 /* AST_VGA_DEVICE(PCI_CHIP_AST1180, NULL), - don't bind to 1180 for now */
64 {0, 0, 0},
65};
66
67MODULE_DEVICE_TABLE(pci, pciidlist);
68
69static void ast_kick_out_firmware_fb(struct pci_dev *pdev)
70{
71 struct apertures_struct *ap;
72 bool primary = false;
73
74 ap = alloc_apertures(1);
75 if (!ap)
76 return;
77
78 ap->ranges[0].base = pci_resource_start(pdev, 0);
79 ap->ranges[0].size = pci_resource_len(pdev, 0);
80
81#ifdef CONFIG_X86
82 primary = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
83#endif
84 drm_fb_helper_remove_conflicting_framebuffers(ap, "astdrmfb", primary);
85 kfree(ap);
86}
87
88static int ast_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
89{
90 ast_kick_out_firmware_fb(pdev);
91
92 return drm_get_pci_dev(pdev, ent, &driver);
93}
94
95static void
96ast_pci_remove(struct pci_dev *pdev)
97{
98 struct drm_device *dev = pci_get_drvdata(pdev);
99
100 drm_put_dev(dev);
101}
102
103
104
105static int ast_drm_freeze(struct drm_device *dev)
106{
107 drm_kms_helper_poll_disable(dev);
108 pci_save_state(dev->pdev);
109 drm_fb_helper_set_suspend_unlocked(dev->fb_helper, true);
110
111 return 0;
112}
113
114static int ast_drm_thaw(struct drm_device *dev)
115{
116 ast_post_gpu(dev);
117
118 drm_mode_config_reset(dev);
119 drm_helper_resume_force_mode(dev);
120 drm_fb_helper_set_suspend_unlocked(dev->fb_helper, false);
121
122 return 0;
123}
124
125static int ast_drm_resume(struct drm_device *dev)
126{
127 int ret;
128
129 if (pci_enable_device(dev->pdev))
130 return -EIO;
131
132 ret = ast_drm_thaw(dev);
133 if (ret)
134 return ret;
135
136 drm_kms_helper_poll_enable(dev);
137 return 0;
138}
139
140static int ast_pm_suspend(struct device *dev)
141{
142 struct pci_dev *pdev = to_pci_dev(dev);
143 struct drm_device *ddev = pci_get_drvdata(pdev);
144 int error;
145
146 error = ast_drm_freeze(ddev);
147 if (error)
148 return error;
149
150 pci_disable_device(pdev);
151 pci_set_power_state(pdev, PCI_D3hot);
152 return 0;
153}
154static int ast_pm_resume(struct device *dev)
155{
156 struct pci_dev *pdev = to_pci_dev(dev);
157 struct drm_device *ddev = pci_get_drvdata(pdev);
158 return ast_drm_resume(ddev);
159}
160
161static int ast_pm_freeze(struct device *dev)
162{
163 struct pci_dev *pdev = to_pci_dev(dev);
164 struct drm_device *ddev = pci_get_drvdata(pdev);
165
166 if (!ddev || !ddev->dev_private)
167 return -ENODEV;
168 return ast_drm_freeze(ddev);
169
170}
171
172static int ast_pm_thaw(struct device *dev)
173{
174 struct pci_dev *pdev = to_pci_dev(dev);
175 struct drm_device *ddev = pci_get_drvdata(pdev);
176 return ast_drm_thaw(ddev);
177}
178
179static int ast_pm_poweroff(struct device *dev)
180{
181 struct pci_dev *pdev = to_pci_dev(dev);
182 struct drm_device *ddev = pci_get_drvdata(pdev);
183
184 return ast_drm_freeze(ddev);
185}
186
187static const struct dev_pm_ops ast_pm_ops = {
188 .suspend = ast_pm_suspend,
189 .resume = ast_pm_resume,
190 .freeze = ast_pm_freeze,
191 .thaw = ast_pm_thaw,
192 .poweroff = ast_pm_poweroff,
193 .restore = ast_pm_resume,
194};
195
196static struct pci_driver ast_pci_driver = {
197 .name = DRIVER_NAME,
198 .id_table = pciidlist,
199 .probe = ast_pci_probe,
200 .remove = ast_pci_remove,
201 .driver.pm = &ast_pm_ops,
202};
203
204static const struct file_operations ast_fops = {
205 .owner = THIS_MODULE,
206 DRM_VRAM_MM_FILE_OPERATIONS
207};
208
209static struct drm_driver driver = {
210 .driver_features = DRIVER_MODESET | DRIVER_GEM,
211
212 .load = ast_driver_load,
213 .unload = ast_driver_unload,
214
215 .fops = &ast_fops,
216 .name = DRIVER_NAME,
217 .desc = DRIVER_DESC,
218 .date = DRIVER_DATE,
219 .major = DRIVER_MAJOR,
220 .minor = DRIVER_MINOR,
221 .patchlevel = DRIVER_PATCHLEVEL,
222
223 DRM_GEM_VRAM_DRIVER
224};
225
226static int __init ast_init(void)
227{
228 if (vgacon_text_force() && ast_modeset == -1)
229 return -EINVAL;
230
231 if (ast_modeset == 0)
232 return -EINVAL;
233 return pci_register_driver(&ast_pci_driver);
234}
235static void __exit ast_exit(void)
236{
237 pci_unregister_driver(&ast_pci_driver);
238}
239
240module_init(ast_init);
241module_exit(ast_exit);
242
243MODULE_AUTHOR(DRIVER_AUTHOR);
244MODULE_DESCRIPTION(DRIVER_DESC);
245MODULE_LICENSE("GPL and additional rights");
246