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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_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
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_aperture.h>
34#include <drm/drm_atomic_helper.h>
35#include <drm/drm_crtc_helper.h>
36#include <drm/drm_drv.h>
37#include <drm/drm_gem_vram_helper.h>
38#include <drm/drm_probe_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/*
48 * DRM driver
49 */
50
51DEFINE_DRM_GEM_FOPS(ast_fops);
52
53static const struct drm_driver ast_driver = {
54 .driver_features = DRIVER_ATOMIC |
55 DRIVER_GEM |
56 DRIVER_MODESET,
57
58 .fops = &ast_fops,
59 .name = DRIVER_NAME,
60 .desc = DRIVER_DESC,
61 .date = DRIVER_DATE,
62 .major = DRIVER_MAJOR,
63 .minor = DRIVER_MINOR,
64 .patchlevel = DRIVER_PATCHLEVEL,
65
66 DRM_GEM_VRAM_DRIVER
67};
68
69/*
70 * PCI driver
71 */
72
73#define PCI_VENDOR_ASPEED 0x1a03
74
75#define AST_VGA_DEVICE(id, info) { \
76 .class = PCI_BASE_CLASS_DISPLAY << 16, \
77 .class_mask = 0xff0000, \
78 .vendor = PCI_VENDOR_ASPEED, \
79 .device = id, \
80 .subvendor = PCI_ANY_ID, \
81 .subdevice = PCI_ANY_ID, \
82 .driver_data = (unsigned long) info }
83
84static const struct pci_device_id ast_pciidlist[] = {
85 AST_VGA_DEVICE(PCI_CHIP_AST2000, NULL),
86 AST_VGA_DEVICE(PCI_CHIP_AST2100, NULL),
87 {0, 0, 0},
88};
89
90MODULE_DEVICE_TABLE(pci, ast_pciidlist);
91
92static int ast_remove_conflicting_framebuffers(struct pci_dev *pdev)
93{
94 bool primary = false;
95 resource_size_t base, size;
96
97 base = pci_resource_start(pdev, 0);
98 size = pci_resource_len(pdev, 0);
99#ifdef CONFIG_X86
100 primary = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
101#endif
102
103 return drm_aperture_remove_conflicting_framebuffers(base, size, primary, "astdrmfb");
104}
105
106static int ast_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
107{
108 struct ast_private *ast;
109 struct drm_device *dev;
110 int ret;
111
112 ret = ast_remove_conflicting_framebuffers(pdev);
113 if (ret)
114 return ret;
115
116 ret = pcim_enable_device(pdev);
117 if (ret)
118 return ret;
119
120 ast = ast_device_create(&ast_driver, pdev, ent->driver_data);
121 if (IS_ERR(ast))
122 return PTR_ERR(ast);
123 dev = &ast->base;
124
125 ret = drm_dev_register(dev, ent->driver_data);
126 if (ret)
127 return ret;
128
129 drm_fbdev_generic_setup(dev, 32);
130
131 return 0;
132}
133
134static void ast_pci_remove(struct pci_dev *pdev)
135{
136 struct drm_device *dev = pci_get_drvdata(pdev);
137
138 drm_dev_unregister(dev);
139 drm_atomic_helper_shutdown(dev);
140}
141
142static int ast_drm_freeze(struct drm_device *dev)
143{
144 int error;
145
146 error = drm_mode_config_helper_suspend(dev);
147 if (error)
148 return error;
149 pci_save_state(to_pci_dev(dev->dev));
150 return 0;
151}
152
153static int ast_drm_thaw(struct drm_device *dev)
154{
155 ast_post_gpu(dev);
156
157 return drm_mode_config_helper_resume(dev);
158}
159
160static int ast_drm_resume(struct drm_device *dev)
161{
162 int ret;
163
164 if (pci_enable_device(to_pci_dev(dev->dev)))
165 return -EIO;
166
167 ret = ast_drm_thaw(dev);
168 if (ret)
169 return ret;
170 return 0;
171}
172
173static int ast_pm_suspend(struct device *dev)
174{
175 struct pci_dev *pdev = to_pci_dev(dev);
176 struct drm_device *ddev = pci_get_drvdata(pdev);
177 int error;
178
179 error = ast_drm_freeze(ddev);
180 if (error)
181 return error;
182
183 pci_disable_device(pdev);
184 pci_set_power_state(pdev, PCI_D3hot);
185 return 0;
186}
187
188static int ast_pm_resume(struct device *dev)
189{
190 struct pci_dev *pdev = to_pci_dev(dev);
191 struct drm_device *ddev = pci_get_drvdata(pdev);
192 return ast_drm_resume(ddev);
193}
194
195static int ast_pm_freeze(struct device *dev)
196{
197 struct pci_dev *pdev = to_pci_dev(dev);
198 struct drm_device *ddev = pci_get_drvdata(pdev);
199 return ast_drm_freeze(ddev);
200}
201
202static int ast_pm_thaw(struct device *dev)
203{
204 struct pci_dev *pdev = to_pci_dev(dev);
205 struct drm_device *ddev = pci_get_drvdata(pdev);
206 return ast_drm_thaw(ddev);
207}
208
209static int ast_pm_poweroff(struct device *dev)
210{
211 struct pci_dev *pdev = to_pci_dev(dev);
212 struct drm_device *ddev = pci_get_drvdata(pdev);
213
214 return ast_drm_freeze(ddev);
215}
216
217static const struct dev_pm_ops ast_pm_ops = {
218 .suspend = ast_pm_suspend,
219 .resume = ast_pm_resume,
220 .freeze = ast_pm_freeze,
221 .thaw = ast_pm_thaw,
222 .poweroff = ast_pm_poweroff,
223 .restore = ast_pm_resume,
224};
225
226static struct pci_driver ast_pci_driver = {
227 .name = DRIVER_NAME,
228 .id_table = ast_pciidlist,
229 .probe = ast_pci_probe,
230 .remove = ast_pci_remove,
231 .driver.pm = &ast_pm_ops,
232};
233
234static int __init ast_init(void)
235{
236 if (vgacon_text_force() && ast_modeset == -1)
237 return -EINVAL;
238
239 if (ast_modeset == 0)
240 return -EINVAL;
241 return pci_register_driver(&ast_pci_driver);
242}
243static void __exit ast_exit(void)
244{
245 pci_unregister_driver(&ast_pci_driver);
246}
247
248module_init(ast_init);
249module_exit(ast_exit);
250
251MODULE_AUTHOR(DRIVER_AUTHOR);
252MODULE_DESCRIPTION(DRIVER_DESC);
253MODULE_LICENSE("GPL and additional rights");