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| 1 | /** |
1 | /** |
| 2 | * \file drm_stub.h |
2 | * \file drm_stub.h |
| 3 | * Stub support |
3 | * Stub support |
| 4 | * |
4 | * |
| 5 | * \author Rickard E. (Rik) Faith |
5 | * \author Rickard E. (Rik) Faith |
| 6 | */ |
6 | */ |
| 7 | 7 | ||
| 8 | /* |
8 | /* |
| 9 | * Created: Fri Jan 19 10:48:35 2001 by faith@acm.org |
9 | * Created: Fri Jan 19 10:48:35 2001 by faith@acm.org |
| 10 | * |
10 | * |
| 11 | * Copyright 2001 VA Linux Systems, Inc., Sunnyvale, California. |
11 | * Copyright 2001 VA Linux Systems, Inc., Sunnyvale, California. |
| 12 | * All Rights Reserved. |
12 | * All Rights Reserved. |
| 13 | * |
13 | * |
| 14 | * Permission is hereby granted, free of charge, to any person obtaining a |
14 | * Permission is hereby granted, free of charge, to any person obtaining a |
| 15 | * copy of this software and associated documentation files (the "Software"), |
15 | * copy of this software and associated documentation files (the "Software"), |
| 16 | * to deal in the Software without restriction, including without limitation |
16 | * to deal in the Software without restriction, including without limitation |
| 17 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
17 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| 18 | * and/or sell copies of the Software, and to permit persons to whom the |
18 | * and/or sell copies of the Software, and to permit persons to whom the |
| 19 | * Software is furnished to do so, subject to the following conditions: |
19 | * Software is furnished to do so, subject to the following conditions: |
| 20 | * |
20 | * |
| 21 | * The above copyright notice and this permission notice (including the next |
21 | * The above copyright notice and this permission notice (including the next |
| 22 | * paragraph) shall be included in all copies or substantial portions of the |
22 | * paragraph) shall be included in all copies or substantial portions of the |
| 23 | * Software. |
23 | * Software. |
| 24 | * |
24 | * |
| 25 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
25 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 26 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
26 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 27 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
27 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 28 | * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR |
28 | * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR |
| 29 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
29 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
| 30 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
30 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
| 31 | * DEALINGS IN THE SOFTWARE. |
31 | * DEALINGS IN THE SOFTWARE. |
| 32 | */ |
32 | */ |
| 33 | 33 | ||
| 34 | #include |
34 | #include |
| 35 | 35 | ||
| 36 | #include |
36 | #include |
| 37 | #include |
37 | #include |
| - | 38 | #include |
|
| 38 | 39 | ||
| 39 | struct va_format { |
40 | struct va_format { |
| 40 | const char *fmt; |
41 | const char *fmt; |
| 41 | va_list *va; |
42 | va_list *va; |
| 42 | }; |
43 | }; |
| 43 | 44 | ||
| 44 | unsigned int drm_debug = 0; /* 1 to enable debug output */ |
45 | unsigned int drm_debug = 0; /* 1 to enable debug output */ |
| 45 | EXPORT_SYMBOL(drm_debug); |
46 | EXPORT_SYMBOL(drm_debug); |
| - | 47 | ||
| - | 48 | unsigned int drm_rnodes = 0; /* 1 to enable experimental render nodes API */ |
|
| - | 49 | EXPORT_SYMBOL(drm_rnodes); |
|
| 46 | 50 | ||
| 47 | unsigned int drm_vblank_offdelay = 5000; /* Default to 5000 msecs. */ |
51 | unsigned int drm_vblank_offdelay = 5000; /* Default to 5000 msecs. */ |
| 48 | EXPORT_SYMBOL(drm_vblank_offdelay); |
52 | EXPORT_SYMBOL(drm_vblank_offdelay); |
| 49 | 53 | ||
| 50 | unsigned int drm_timestamp_precision = 20; /* Default to 20 usecs. */ |
54 | unsigned int drm_timestamp_precision = 20; /* Default to 20 usecs. */ |
| 51 | EXPORT_SYMBOL(drm_timestamp_precision); |
55 | EXPORT_SYMBOL(drm_timestamp_precision); |
| - | 56 | ||
| 52 | 57 | struct idr drm_minors_idr; |
|
| 53 | int drm_err(const char *func, const char *format, ...) |
58 | int drm_err(const char *func, const char *format, ...) |
| 54 | { |
59 | { |
| 55 | struct va_format vaf; |
60 | struct va_format vaf; |
| 56 | va_list args; |
61 | va_list args; |
| 57 | int r; |
62 | int r; |
| 58 | 63 | ||
| 59 | va_start(args, format); |
64 | va_start(args, format); |
| 60 | 65 | ||
| 61 | vaf.fmt = format; |
66 | vaf.fmt = format; |
| 62 | vaf.va = &args; |
67 | vaf.va = &args; |
| 63 | 68 | ||
| 64 | r = printk(KERN_ERR "[" DRM_NAME ":%s] *ERROR* %pV", func, &vaf); |
69 | r = printk(KERN_ERR "[" DRM_NAME ":%s] *ERROR* %pV", func, &vaf); |
| 65 | 70 | ||
| 66 | va_end(args); |
71 | va_end(args); |
| 67 | 72 | ||
| 68 | return r; |
73 | return r; |
| 69 | } |
74 | } |
| 70 | EXPORT_SYMBOL(drm_err); |
75 | EXPORT_SYMBOL(drm_err); |
| 71 | 76 | ||
| 72 | void drm_ut_debug_printk(unsigned int request_level, |
77 | void drm_ut_debug_printk(unsigned int request_level, |
| 73 | const char *prefix, |
78 | const char *prefix, |
| 74 | const char *function_name, |
79 | const char *function_name, |
| 75 | const char *format, ...) |
80 | const char *format, ...) |
| 76 | { |
81 | { |
| 77 | va_list args; |
82 | va_list args; |
| 78 | 83 | ||
| 79 | // if (drm_debug & request_level) { |
84 | // if (drm_debug & request_level) { |
| 80 | // if (function_name) |
85 | // if (function_name) |
| 81 | // printk(KERN_DEBUG "[%s:%s], ", prefix, function_name); |
86 | // printk(KERN_DEBUG "[%s:%s], ", prefix, function_name); |
| 82 | // va_start(args, format); |
87 | // va_start(args, format); |
| 83 | // vprintk(format, args); |
88 | // vprintk(format, args); |
| 84 | // va_end(args); |
89 | // va_end(args); |
| 85 | // } |
90 | // } |
| 86 | } |
91 | } |
| 87 | EXPORT_SYMBOL(drm_ut_debug_printk); |
92 | EXPORT_SYMBOL(drm_ut_debug_printk); |
| - | 93 | ||
| - | 94 | int drm_fill_in_dev(struct drm_device *dev, |
|
| - | 95 | const struct pci_device_id *ent, |
|
| - | 96 | struct drm_driver *driver) |
|
| - | 97 | { |
|
| - | 98 | int retcode; |
|
| - | 99 | ||
| - | 100 | INIT_LIST_HEAD(&dev->filelist); |
|
| - | 101 | INIT_LIST_HEAD(&dev->ctxlist); |
|
| - | 102 | INIT_LIST_HEAD(&dev->vmalist); |
|
| - | 103 | INIT_LIST_HEAD(&dev->maplist); |
|
| - | 104 | INIT_LIST_HEAD(&dev->vblank_event_list); |
|
| - | 105 | ||
| - | 106 | spin_lock_init(&dev->count_lock); |
|
| - | 107 | spin_lock_init(&dev->event_lock); |
|
| - | 108 | mutex_init(&dev->struct_mutex); |
|
| - | 109 | mutex_init(&dev->ctxlist_mutex); |
|
| - | 110 | ||
| - | 111 | // if (drm_ht_create(&dev->map_hash, 12)) { |
|
| - | 112 | // return -ENOMEM; |
|
| - | 113 | // } |
|
| - | 114 | ||
| - | 115 | dev->driver = driver; |
|
| - | 116 | ||
| - | 117 | if (driver->driver_features & DRIVER_GEM) { |
|
| - | 118 | retcode = drm_gem_init(dev); |
|
| - | 119 | if (retcode) { |
|
| - | 120 | DRM_ERROR("Cannot initialize graphics execution " |
|
| - | 121 | "manager (GEM)\n"); |
|
| - | 122 | goto error_out_unreg; |
|
| - | 123 | } |
|
| - | 124 | } |
|
| - | 125 | ||
| - | 126 | return 0; |
|
| - | 127 | ||
| - | 128 | error_out_unreg: |
|
| - | 129 | // drm_lastclose(dev); |
|
| - | 130 | return retcode; |
|
| - | 131 | } |
|
| 88 | 132 | EXPORT_SYMBOL(drm_fill_in_dev); |
|
| 89 | /** |
133 | /** |
| 90 | * Compute size order. Returns the exponent of the smaller power of two which |
134 | * Compute size order. Returns the exponent of the smaller power of two which |
| 91 | * is greater or equal to given number. |
135 | * is greater or equal to given number. |
| 92 | * |
136 | * |
| 93 | * \param size size. |
137 | * \param size size. |
| 94 | * \return order. |
138 | * \return order. |
| 95 | * |
139 | * |
| 96 | * \todo Can be made faster. |
140 | * \todo Can be made faster. |
| 97 | */ |
141 | */ |
| 98 | int drm_order(unsigned long size) |
142 | int drm_order(unsigned long size) |
| 99 | { |
143 | { |
| 100 | int order; |
144 | int order; |
| 101 | unsigned long tmp; |
145 | unsigned long tmp; |
| 102 | 146 | ||
| 103 | for (order = 0, tmp = size >> 1; tmp; tmp >>= 1, order++) ; |
147 | for (order = 0, tmp = size >> 1; tmp; tmp >>= 1, order++) ; |
| 104 | 148 | ||
| 105 | if (size & (size - 1)) |
149 | if (size & (size - 1)) |
| 106 | ++order; |
150 | ++order; |
| 107 | 151 | ||
| 108 | return order; |
152 | return order; |
| 109 | } |
153 | } |
| 110 | 154 | ||
| 111 | extern int x86_clflush_size; |
155 | extern int x86_clflush_size; |
| 112 | 156 | ||
| 113 | static inline void clflush(volatile void *__p) |
157 | static inline void clflush(volatile void *__p) |
| 114 | { |
158 | { |
| 115 | asm volatile("clflush %0" : "+m" (*(volatile char*)__p)); |
159 | asm volatile("clflush %0" : "+m" (*(volatile char*)__p)); |
| 116 | } |
160 | } |
| 117 | 161 | ||
| 118 | void |
162 | void |
| 119 | drm_clflush_virt_range(char *addr, unsigned long length) |
163 | drm_clflush_virt_range(char *addr, unsigned long length) |
| 120 | { |
164 | { |
| 121 | char *end = addr + length; |
165 | char *end = addr + length; |
| 122 | mb(); |
166 | mb(); |
| 123 | for (; addr < end; addr += x86_clflush_size) |
167 | for (; addr < end; addr += x86_clflush_size) |
| 124 | clflush(addr); |
168 | clflush(addr); |
| 125 | clflush(end - 1); |
169 | clflush(end - 1); |
| 126 | mb(); |
170 | mb(); |
| 127 | return; |
171 | return; |
| 128 | } |
172 | } |