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5270 | serge | 1 | /* |
2 | * Internal Header for the Direct Rendering Manager |
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1408 | serge | 3 | * |
4 | * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. |
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5 | * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. |
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1964 | serge | 6 | * Copyright (c) 2009-2010, Code Aurora Forum. |
1408 | serge | 7 | * All rights reserved. |
8 | * |
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5270 | serge | 9 | * Author: Rickard E. (Rik) Faith |
10 | * Author: Gareth Hughes |
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11 | * |
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1408 | serge | 12 | * Permission is hereby granted, free of charge, to any person obtaining a |
13 | * copy of this software and associated documentation files (the "Software"), |
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14 | * to deal in the Software without restriction, including without limitation |
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15 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
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16 | * and/or sell copies of the Software, and to permit persons to whom the |
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17 | * Software is furnished to do so, subject to the following conditions: |
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18 | * |
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19 | * The above copyright notice and this permission notice (including the next |
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20 | * paragraph) shall be included in all copies or substantial portions of the |
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21 | * Software. |
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22 | * |
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23 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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24 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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25 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
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26 | * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR |
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27 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
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28 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
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29 | * OTHER DEALINGS IN THE SOFTWARE. |
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30 | */ |
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31 | |||
32 | #ifndef _DRM_P_H_ |
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33 | #define _DRM_P_H_ |
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34 | |||
2967 | Serge | 35 | #include |
5270 | serge | 36 | #include |
2967 | Serge | 37 | |
5270 | serge | 38 | #include |
39 | #include |
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40 | #include |
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41 | #include |
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42 | #include |
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1408 | serge | 43 | #include |
44 | #include |
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5270 | serge | 45 | #include |
46 | |||
1408 | serge | 47 | #include |
5270 | serge | 48 | #include |
49 | #include |
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3391 | Serge | 50 | #include |
1408 | serge | 51 | |
3763 | Serge | 52 | #include |
53 | #include |
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54 | |||
5056 | serge | 55 | |
3747 | Serge | 56 | #include |
5056 | serge | 57 | #include |
58 | #include |
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5270 | serge | 59 | #include |
3482 | Serge | 60 | #include |
61 | |||
5270 | serge | 62 | #include |
63 | #include |
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3482 | Serge | 64 | |
5270 | serge | 65 | #include |
66 | #include |
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67 | #include |
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68 | #include |
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69 | #include |
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70 | #include |
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71 | #include |
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72 | #include |
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4103 | Serge | 73 | #include |
1408 | serge | 74 | |
3031 | serge | 75 | struct module; |
1408 | serge | 76 | |
77 | struct drm_file; |
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78 | struct drm_device; |
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5270 | serge | 79 | struct drm_agp_head; |
80 | struct drm_local_map; |
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81 | struct drm_device_dma; |
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82 | struct drm_dma_handle; |
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83 | struct drm_gem_object; |
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1408 | serge | 84 | |
3391 | Serge | 85 | struct device_node; |
86 | struct videomode; |
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5056 | serge | 87 | struct reservation_object; |
5270 | serge | 88 | struct dma_buf_attachment; |
4103 | Serge | 89 | |
90 | struct inode; |
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91 | struct poll_table_struct; |
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92 | struct sg_table; |
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93 | |||
1408 | serge | 94 | #define KHZ2PICOS(a) (1000000000UL/(a)) |
95 | |||
3031 | serge | 96 | /* |
5056 | serge | 97 | * 4 debug categories are defined: |
3031 | serge | 98 | * |
5056 | serge | 99 | * CORE: Used in the generic drm code: drm_ioctl.c, drm_mm.c, drm_memory.c, ... |
100 | * This is the category used by the DRM_DEBUG() macro. |
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3031 | serge | 101 | * |
5056 | serge | 102 | * DRIVER: Used in the vendor specific part of the driver: i915, radeon, ... |
103 | * This is the category used by the DRM_DEBUG_DRIVER() macro. |
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3031 | serge | 104 | * |
5056 | serge | 105 | * KMS: used in the modesetting code. |
106 | * This is the category used by the DRM_DEBUG_KMS() macro. |
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107 | * |
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108 | * PRIME: used in the prime code. |
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109 | * This is the category used by the DRM_DEBUG_PRIME() macro. |
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110 | * |
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6082 | serge | 111 | * ATOMIC: used in the atomic code. |
112 | * This is the category used by the DRM_DEBUG_ATOMIC() macro. |
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113 | * |
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114 | * VBL: used for verbose debug message in the vblank code |
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115 | * This is the category used by the DRM_DEBUG_VBL() macro. |
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116 | * |
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5056 | serge | 117 | * Enabling verbose debug messages is done through the drm.debug parameter, |
118 | * each category being enabled by a bit. |
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119 | * |
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120 | * drm.debug=0x1 will enable CORE messages |
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121 | * drm.debug=0x2 will enable DRIVER messages |
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122 | * drm.debug=0x3 will enable CORE and DRIVER messages |
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123 | * ... |
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6082 | serge | 124 | * drm.debug=0x3f will enable all messages |
5056 | serge | 125 | * |
126 | * An interesting feature is that it's possible to enable verbose logging at |
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127 | * run-time by echoing the debug value in its sysfs node: |
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128 | * # echo 0xf > /sys/module/drm/parameters/debug |
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3031 | serge | 129 | */ |
5056 | serge | 130 | #define DRM_UT_CORE 0x01 |
131 | #define DRM_UT_DRIVER 0x02 |
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6082 | serge | 132 | #define DRM_UT_KMS 0x04 |
5056 | serge | 133 | #define DRM_UT_PRIME 0x08 |
6082 | serge | 134 | #define DRM_UT_ATOMIC 0x10 |
135 | #define DRM_UT_VBL 0x20 |
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3031 | serge | 136 | |
5056 | serge | 137 | extern __printf(2, 3) |
138 | void drm_ut_debug_printk(const char *function_name, |
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6082 | serge | 139 | const char *format, ...); |
5270 | serge | 140 | extern __printf(1, 2) |
141 | void drm_err(const char *format, ...); |
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1408 | serge | 142 | |
143 | /***********************************************************************/ |
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144 | /** \name DRM template customization defaults */ |
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145 | /*@{*/ |
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146 | |||
147 | /* driver capabilities and requirements mask */ |
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6082 | serge | 148 | #define DRIVER_USE_AGP 0x1 |
149 | #define DRIVER_PCI_DMA 0x8 |
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150 | #define DRIVER_SG 0x10 |
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151 | #define DRIVER_HAVE_DMA 0x20 |
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152 | #define DRIVER_HAVE_IRQ 0x40 |
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153 | #define DRIVER_IRQ_SHARED 0x80 |
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154 | #define DRIVER_GEM 0x1000 |
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155 | #define DRIVER_MODESET 0x2000 |
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156 | #define DRIVER_PRIME 0x4000 |
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157 | #define DRIVER_RENDER 0x8000 |
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158 | #define DRIVER_ATOMIC 0x10000 |
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159 | #define DRIVER_KMS_LEGACY_CONTEXT 0x20000 |
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1408 | serge | 160 | |
161 | /***********************************************************************/ |
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162 | /** \name Macros to make printk easier */ |
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163 | /*@{*/ |
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164 | |||
165 | /** |
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166 | * Error output. |
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167 | * |
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168 | * \param fmt printf() like format string. |
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169 | * \param arg arguments |
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170 | */ |
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3031 | serge | 171 | #define DRM_ERROR(fmt, ...) \ |
6082 | serge | 172 | printk("DRM Error" fmt, ##__VA_ARGS__) |
1408 | serge | 173 | |
4559 | Serge | 174 | /** |
175 | * Rate limited error output. Like DRM_ERROR() but won't flood the log. |
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176 | * |
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177 | * \param fmt printf() like format string. |
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178 | * \param arg arguments |
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179 | */ |
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180 | #define DRM_ERROR_RATELIMITED(fmt, ...) \ |
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181 | ({ \ |
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182 | static DEFINE_RATELIMIT_STATE(_rs, \ |
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183 | DEFAULT_RATELIMIT_INTERVAL, \ |
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184 | DEFAULT_RATELIMIT_BURST); \ |
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185 | \ |
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186 | if (__ratelimit(&_rs)) \ |
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5270 | serge | 187 | drm_err(fmt, ##__VA_ARGS__); \ |
4559 | Serge | 188 | }) |
189 | |||
3031 | serge | 190 | #define DRM_INFO(fmt, ...) \ |
191 | printk(KERN_INFO "[" DRM_NAME "] " fmt, ##__VA_ARGS__) |
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1408 | serge | 192 | |
5056 | serge | 193 | #define DRM_INFO_ONCE(fmt, ...) \ |
194 | printk_once(KERN_INFO "[" DRM_NAME "] " fmt, ##__VA_ARGS__) |
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195 | |||
1408 | serge | 196 | /** |
197 | * Debug output. |
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198 | * |
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199 | * \param fmt printf() like format string. |
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200 | * \param arg arguments |
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201 | */ |
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202 | #if DRM_DEBUG_CODE |
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5056 | serge | 203 | #define DRM_DEBUG(fmt, args...) \ |
3031 | serge | 204 | do { \ |
5056 | serge | 205 | printk(KERN_INFO "[" DRM_NAME "] " fmt, ##args); \ |
1408 | serge | 206 | } while (0) |
207 | |||
5056 | serge | 208 | #define DRM_DEBUG_DRIVER(fmt, args...) \ |
3031 | serge | 209 | do { \ |
5056 | serge | 210 | printk(KERN_INFO "[" DRM_NAME "] " fmt, ##args); \ |
3031 | serge | 211 | } while (0) |
5056 | serge | 212 | #define DRM_DEBUG_KMS(fmt, args...) \ |
1408 | serge | 213 | do { \ |
5056 | serge | 214 | printk(KERN_INFO "[" DRM_NAME "] " fmt, ##args); \ |
1408 | serge | 215 | } while (0) |
5056 | serge | 216 | #define DRM_DEBUG_PRIME(fmt, args...) \ |
1408 | serge | 217 | do { \ |
5056 | serge | 218 | printk(KERN_INFO "[" DRM_NAME "] " fmt, ##args); \ |
1408 | serge | 219 | } while (0) |
6082 | serge | 220 | #define DRM_DEBUG_ATOMIC(fmt, args...) \ |
221 | do { \ |
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222 | printk(KERN_INFO "[" DRM_NAME "] " fmt, ##args); \ |
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223 | } while (0) |
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224 | #define DRM_DEBUG_VBL(fmt, args...) \ |
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225 | do { \ |
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226 | printk(KERN_INFO "[" DRM_NAME "] " fmt, ##args); \ |
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227 | } while (0) |
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228 | |||
1408 | serge | 229 | #else |
230 | #define DRM_DEBUG_DRIVER(fmt, args...) do { } while (0) |
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231 | #define DRM_DEBUG_KMS(fmt, args...) do { } while (0) |
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3031 | serge | 232 | #define DRM_DEBUG_PRIME(fmt, args...) do { } while (0) |
1408 | serge | 233 | #define DRM_DEBUG(fmt, arg...) do { } while (0) |
6082 | serge | 234 | #define DRM_DEBUG_ATOMIC(fmt, args...) do { } while (0) |
235 | #define DRM_DEBUG_VBL(fmt, args...) do { } while (0) |
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1408 | serge | 236 | #endif |
237 | /*@}*/ |
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238 | |||
239 | /***********************************************************************/ |
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240 | /** \name Internal types and structures */ |
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241 | /*@{*/ |
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242 | |||
243 | #define DRM_IF_VERSION(maj, min) (maj << 16 | min) |
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244 | |||
245 | /** |
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246 | * Ioctl function type. |
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247 | * |
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248 | * \param inode device inode. |
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249 | * \param file_priv DRM file private pointer. |
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250 | * \param cmd command. |
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251 | * \param arg argument. |
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252 | */ |
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253 | typedef int drm_ioctl_t(struct drm_device *dev, void *data, |
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254 | struct drm_file *file_priv); |
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255 | |||
256 | typedef int drm_ioctl_compat_t(struct file *filp, unsigned int cmd, |
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257 | unsigned long arg); |
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258 | |||
259 | #define DRM_IOCTL_NR(n) _IOC_NR(n) |
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260 | #define DRM_MAJOR 226 |
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261 | |||
262 | #define DRM_AUTH 0x1 |
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263 | #define DRM_MASTER 0x2 |
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264 | #define DRM_ROOT_ONLY 0x4 |
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265 | #define DRM_CONTROL_ALLOW 0x8 |
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266 | #define DRM_UNLOCKED 0x10 |
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4103 | Serge | 267 | #define DRM_RENDER_ALLOW 0x20 |
1408 | serge | 268 | |
269 | struct drm_ioctl_desc { |
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270 | unsigned int cmd; |
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271 | int flags; |
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272 | drm_ioctl_t *func; |
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3747 | Serge | 273 | const char *name; |
1408 | serge | 274 | }; |
275 | |||
276 | /** |
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277 | * Creates a driver or general drm_ioctl_desc array entry for the given |
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278 | * ioctl, for use by drm_ioctl(). |
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279 | */ |
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280 | |||
6082 | serge | 281 | #define DRM_IOCTL_DEF_DRV(ioctl, _func, _flags) \ |
282 | [DRM_IOCTL_NR(DRM_IOCTL_##ioctl) - DRM_COMMAND_BASE] = { \ |
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283 | .cmd = DRM_IOCTL_##ioctl, \ |
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284 | .func = _func, \ |
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285 | .flags = _flags, \ |
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286 | .name = #ioctl \ |
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287 | } |
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1964 | serge | 288 | |
1408 | serge | 289 | /* Event queued up for userspace to read */ |
290 | struct drm_pending_event { |
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291 | struct drm_event *event; |
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292 | struct list_head link; |
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293 | struct drm_file *file_priv; |
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1964 | serge | 294 | pid_t pid; /* pid of requester, no guarantee it's valid by the time |
295 | we deliver the event, for tracing only */ |
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1408 | serge | 296 | void (*destroy)(struct drm_pending_event *event); |
297 | }; |
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298 | |||
3031 | serge | 299 | /* initial implementaton using a linked list - todo hashtab */ |
300 | struct drm_prime_file_private { |
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301 | struct list_head head; |
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302 | struct mutex lock; |
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303 | }; |
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304 | |||
1408 | serge | 305 | /** File private data */ |
306 | struct drm_file { |
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4559 | Serge | 307 | unsigned authenticated :1; |
5056 | serge | 308 | /* Whether we're master for a minor. Protected by master_mutex */ |
309 | unsigned is_master :1; |
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4559 | Serge | 310 | /* true when the client has asked us to expose stereo 3D mode flags */ |
311 | unsigned stereo_allowed :1; |
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5056 | serge | 312 | /* |
313 | * true if client understands CRTC primary planes and cursor planes |
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314 | * in the plane list |
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315 | */ |
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316 | unsigned universal_planes:1; |
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6082 | serge | 317 | /* true if client understands atomic properties */ |
318 | unsigned atomic:1; |
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1408 | serge | 319 | struct list_head lhead; |
6082 | serge | 320 | struct drm_minor *minor; |
1408 | serge | 321 | unsigned long lock_count; |
322 | |||
323 | /** Mapping of mm object handles to object pointers. */ |
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324 | struct idr object_idr; |
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325 | /** Lock for synchronization of access to object_idr. */ |
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326 | spinlock_t table_lock; |
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327 | |||
328 | void *driver_priv; |
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329 | |||
5056 | serge | 330 | struct drm_master *master; /* master this node is currently associated with |
331 | N.B. not always minor->master */ |
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332 | /** |
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333 | * fbs - List of framebuffers associated with this file. |
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334 | * |
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335 | * Protected by fbs_lock. Note that the fbs list holds a reference on |
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336 | * the fb object to prevent it from untimely disappearing. |
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337 | */ |
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1408 | serge | 338 | struct list_head fbs; |
5056 | serge | 339 | struct mutex fbs_lock; |
1408 | serge | 340 | |
6082 | serge | 341 | /** User-created blob properties; this retains a reference on the |
342 | * property. */ |
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343 | struct list_head blobs; |
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344 | |||
1408 | serge | 345 | wait_queue_head_t event_wait; |
346 | struct list_head event_list; |
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347 | int event_space; |
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348 | }; |
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349 | |||
350 | /** |
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351 | * Lock data. |
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352 | */ |
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353 | struct drm_lock_data { |
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354 | struct drm_hw_lock *hw_lock; /**< Hardware lock */ |
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355 | /** Private of lock holder's file (NULL=kernel) */ |
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356 | struct drm_file *file_priv; |
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357 | wait_queue_head_t lock_queue; /**< Queue of blocked processes */ |
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358 | unsigned long lock_time; /**< Time of last lock in jiffies */ |
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359 | spinlock_t spinlock; |
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360 | uint32_t kernel_waiters; |
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361 | uint32_t user_waiters; |
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362 | int idle_has_lock; |
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363 | }; |
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364 | |||
365 | /** |
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5056 | serge | 366 | * struct drm_master - drm master structure |
367 | * |
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368 | * @refcount: Refcount for this master object. |
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369 | * @minor: Link back to minor char device we are master for. Immutable. |
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370 | * @unique: Unique identifier: e.g. busid. Protected by drm_global_mutex. |
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371 | * @unique_len: Length of unique field. Protected by drm_global_mutex. |
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6082 | serge | 372 | * @magic_map: Map of used authentication tokens. Protected by struct_mutex. |
5056 | serge | 373 | * @lock: DRI lock information. |
374 | * @driver_priv: Pointer to driver-private information. |
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375 | */ |
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1408 | serge | 376 | struct drm_master { |
5056 | serge | 377 | struct kref refcount; |
378 | struct drm_minor *minor; |
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379 | char *unique; |
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380 | int unique_len; |
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6082 | serge | 381 | struct idr magic_map; |
5270 | serge | 382 | struct drm_lock_data lock; |
5056 | serge | 383 | void *driver_priv; |
1408 | serge | 384 | }; |
385 | |||
1964 | serge | 386 | /* Size of ringbuffer for vblank timestamps. Just double-buffer |
387 | * in initial implementation. |
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388 | */ |
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389 | #define DRM_VBLANKTIME_RBSIZE 2 |
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390 | |||
391 | /* Flags and return codes for get_vblank_timestamp() driver function. */ |
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392 | #define DRM_CALLED_FROM_VBLIRQ 1 |
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393 | #define DRM_VBLANKTIME_SCANOUTPOS_METHOD (1 << 0) |
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5270 | serge | 394 | #define DRM_VBLANKTIME_IN_VBLANK (1 << 1) |
1964 | serge | 395 | |
396 | /* get_scanout_position() return flags */ |
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397 | #define DRM_SCANOUTPOS_VALID (1 << 0) |
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5270 | serge | 398 | #define DRM_SCANOUTPOS_IN_VBLANK (1 << 1) |
1964 | serge | 399 | #define DRM_SCANOUTPOS_ACCURATE (1 << 2) |
400 | |||
1408 | serge | 401 | /** |
402 | * DRM driver structure. This structure represent the common code for |
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403 | * a family of cards. There will one drm_device for each card present |
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404 | * in this family |
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405 | */ |
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406 | struct drm_driver { |
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407 | int (*load) (struct drm_device *, unsigned long flags); |
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408 | int (*open) (struct drm_device *, struct drm_file *); |
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409 | |||
410 | /** |
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411 | * get_vblank_counter - get raw hardware vblank counter |
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412 | * @dev: DRM device |
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6082 | serge | 413 | * @pipe: counter to fetch |
1408 | serge | 414 | * |
3031 | serge | 415 | * Driver callback for fetching a raw hardware vblank counter for @crtc. |
416 | * If a device doesn't have a hardware counter, the driver can simply |
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417 | * return the value of drm_vblank_count. The DRM core will account for |
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418 | * missed vblank events while interrupts where disabled based on system |
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419 | * timestamps. |
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1408 | serge | 420 | * |
421 | * Wraparound handling and loss of events due to modesetting is dealt |
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422 | * with in the DRM core code. |
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423 | * |
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424 | * RETURNS |
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425 | * Raw vblank counter value. |
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426 | */ |
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6082 | serge | 427 | u32 (*get_vblank_counter) (struct drm_device *dev, unsigned int pipe); |
1408 | serge | 428 | |
429 | /** |
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430 | * enable_vblank - enable vblank interrupt events |
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431 | * @dev: DRM device |
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6082 | serge | 432 | * @pipe: which irq to enable |
1408 | serge | 433 | * |
434 | * Enable vblank interrupts for @crtc. If the device doesn't have |
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435 | * a hardware vblank counter, this routine should be a no-op, since |
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436 | * interrupts will have to stay on to keep the count accurate. |
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437 | * |
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438 | * RETURNS |
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439 | * Zero on success, appropriate errno if the given @crtc's vblank |
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440 | * interrupt cannot be enabled. |
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441 | */ |
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6082 | serge | 442 | int (*enable_vblank) (struct drm_device *dev, unsigned int pipe); |
1408 | serge | 443 | |
444 | /** |
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445 | * disable_vblank - disable vblank interrupt events |
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446 | * @dev: DRM device |
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6082 | serge | 447 | * @pipe: which irq to enable |
1408 | serge | 448 | * |
449 | * Disable vblank interrupts for @crtc. If the device doesn't have |
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450 | * a hardware vblank counter, this routine should be a no-op, since |
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451 | * interrupts will have to stay on to keep the count accurate. |
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452 | */ |
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6082 | serge | 453 | void (*disable_vblank) (struct drm_device *dev, unsigned int pipe); |
454 | |||
1408 | serge | 455 | /** |
6082 | serge | 456 | * Called by \c drm_device_is_agp. Typically used to determine if a |
457 | * card is really attached to AGP or not. |
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458 | * |
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459 | * \param dev DRM device handle |
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460 | * |
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461 | * \returns |
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462 | * One of three values is returned depending on whether or not the |
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463 | * card is absolutely \b not AGP (return of 0), absolutely \b is AGP |
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464 | * (return of 1), or may or may not be AGP (return of 2). |
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465 | */ |
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466 | int (*device_is_agp) (struct drm_device *dev); |
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467 | |||
468 | /** |
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1964 | serge | 469 | * Called by vblank timestamping code. |
470 | * |
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4559 | Serge | 471 | * Return the current display scanout position from a crtc, and an |
472 | * optional accurate ktime_get timestamp of when position was measured. |
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1964 | serge | 473 | * |
474 | * \param dev DRM device. |
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6082 | serge | 475 | * \param pipe Id of the crtc to query. |
4559 | Serge | 476 | * \param flags Flags from the caller (DRM_CALLED_FROM_VBLIRQ or 0). |
1964 | serge | 477 | * \param *vpos Target location for current vertical scanout position. |
478 | * \param *hpos Target location for current horizontal scanout position. |
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4559 | Serge | 479 | * \param *stime Target location for timestamp taken immediately before |
480 | * scanout position query. Can be NULL to skip timestamp. |
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481 | * \param *etime Target location for timestamp taken immediately after |
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482 | * scanout position query. Can be NULL to skip timestamp. |
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6082 | serge | 483 | * \param mode Current display timings. |
1964 | serge | 484 | * |
485 | * Returns vpos as a positive number while in active scanout area. |
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486 | * Returns vpos as a negative number inside vblank, counting the number |
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487 | * of scanlines to go until end of vblank, e.g., -1 means "one scanline |
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488 | * until start of active scanout / end of vblank." |
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489 | * |
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490 | * \return Flags, or'ed together as follows: |
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491 | * |
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492 | * DRM_SCANOUTPOS_VALID = Query successful. |
||
493 | * DRM_SCANOUTPOS_INVBL = Inside vblank. |
||
494 | * DRM_SCANOUTPOS_ACCURATE = Returned position is accurate. A lack of |
||
495 | * this flag means that returned position may be offset by a constant |
||
496 | * but unknown small number of scanlines wrt. real scanout position. |
||
497 | * |
||
498 | */ |
||
6082 | serge | 499 | int (*get_scanout_position) (struct drm_device *dev, unsigned int pipe, |
500 | unsigned int flags, int *vpos, int *hpos, |
||
501 | ktime_t *stime, ktime_t *etime, |
||
502 | const struct drm_display_mode *mode); |
||
1964 | serge | 503 | |
504 | /** |
||
505 | * Called by \c drm_get_last_vbltimestamp. Should return a precise |
||
506 | * timestamp when the most recent VBLANK interval ended or will end. |
||
507 | * |
||
508 | * Specifically, the timestamp in @vblank_time should correspond as |
||
509 | * closely as possible to the time when the first video scanline of |
||
510 | * the video frame after the end of VBLANK will start scanning out, |
||
2967 | Serge | 511 | * the time immediately after end of the VBLANK interval. If the |
1964 | serge | 512 | * @crtc is currently inside VBLANK, this will be a time in the future. |
513 | * If the @crtc is currently scanning out a frame, this will be the |
||
514 | * past start time of the current scanout. This is meant to adhere |
||
515 | * to the OpenML OML_sync_control extension specification. |
||
516 | * |
||
517 | * \param dev dev DRM device handle. |
||
6082 | serge | 518 | * \param pipe crtc for which timestamp should be returned. |
1964 | serge | 519 | * \param *max_error Maximum allowable timestamp error in nanoseconds. |
520 | * Implementation should strive to provide timestamp |
||
521 | * with an error of at most *max_error nanoseconds. |
||
522 | * Returns true upper bound on error for timestamp. |
||
523 | * \param *vblank_time Target location for returned vblank timestamp. |
||
524 | * \param flags 0 = Defaults, no special treatment needed. |
||
525 | * \param DRM_CALLED_FROM_VBLIRQ = Function is called from vblank |
||
526 | * irq handler. Some drivers need to apply some workarounds |
||
527 | * for gpu-specific vblank irq quirks if flag is set. |
||
528 | * |
||
529 | * \returns |
||
530 | * Zero if timestamping isn't supported in current display mode or a |
||
531 | * negative number on failure. A positive status code on success, |
||
532 | * which describes how the vblank_time timestamp was computed. |
||
533 | */ |
||
6082 | serge | 534 | int (*get_vblank_timestamp) (struct drm_device *dev, unsigned int pipe, |
1964 | serge | 535 | int *max_error, |
536 | struct timeval *vblank_time, |
||
537 | unsigned flags); |
||
538 | |||
1408 | serge | 539 | /* these have to be filled in */ |
540 | |||
5056 | serge | 541 | irqreturn_t(*irq_handler) (int irq, void *arg); |
1408 | serge | 542 | void (*irq_preinstall) (struct drm_device *dev); |
543 | int (*irq_postinstall) (struct drm_device *dev); |
||
544 | void (*irq_uninstall) (struct drm_device *dev); |
||
545 | |||
546 | /** |
||
547 | * Driver-specific constructor for drm_gem_objects, to set up |
||
548 | * obj->driver_private. |
||
549 | * |
||
550 | * Returns 0 on success. |
||
551 | */ |
||
552 | void (*gem_free_object) (struct drm_gem_object *obj); |
||
2967 | Serge | 553 | int (*gem_open_object) (struct drm_gem_object *, struct drm_file *); |
554 | void (*gem_close_object) (struct drm_gem_object *, struct drm_file *); |
||
1408 | serge | 555 | u32 driver_features; |
5056 | serge | 556 | int dev_priv_size; |
1408 | serge | 557 | }; |
558 | |||
5056 | serge | 559 | enum drm_minor_type { |
560 | DRM_MINOR_LEGACY, |
||
561 | DRM_MINOR_CONTROL, |
||
562 | DRM_MINOR_RENDER, |
||
563 | DRM_MINOR_CNT, |
||
564 | }; |
||
1408 | serge | 565 | |
566 | /** |
||
567 | * Info file list entry. This structure represents a debugfs or proc file to |
||
568 | * be created by the drm core |
||
569 | */ |
||
570 | struct drm_info_list { |
||
571 | const char *name; /** file name */ |
||
2967 | Serge | 572 | // int (*show)(struct seq_file*, void*); /** show callback */ |
1408 | serge | 573 | u32 driver_features; /**< Required driver features for this entry */ |
574 | void *data; |
||
575 | }; |
||
576 | |||
577 | /** |
||
578 | * debugfs node structure. This structure represents a debugfs file. |
||
579 | */ |
||
580 | struct drm_info_node { |
||
581 | struct list_head list; |
||
582 | struct drm_minor *minor; |
||
4065 | Serge | 583 | const struct drm_info_list *info_ent; |
1408 | serge | 584 | struct dentry *dent; |
585 | }; |
||
586 | |||
587 | /** |
||
588 | * DRM minor structure. This structure represents a drm minor number. |
||
589 | */ |
||
590 | struct drm_minor { |
||
591 | int index; /**< Minor device number */ |
||
592 | int type; /**< Control or render */ |
||
6082 | serge | 593 | struct device *kdev; /**< Linux device */ |
1408 | serge | 594 | struct drm_device *dev; |
595 | |||
5056 | serge | 596 | struct dentry *debugfs_root; |
1408 | serge | 597 | |
5056 | serge | 598 | struct list_head debugfs_list; |
599 | struct mutex debugfs_lock; /* Protects debugfs_list. */ |
||
1408 | serge | 600 | |
5056 | serge | 601 | /* currently active master for this node. Protected by master_mutex */ |
602 | struct drm_master *master; |
||
1964 | serge | 603 | }; |
1408 | serge | 604 | |
605 | |||
5270 | serge | 606 | struct drm_pending_vblank_event { |
607 | struct drm_pending_event base; |
||
6082 | serge | 608 | unsigned int pipe; |
5270 | serge | 609 | struct drm_event_vblank event; |
610 | }; |
||
1408 | serge | 611 | |
5270 | serge | 612 | struct drm_vblank_crtc { |
613 | struct drm_device *dev; /* pointer to the drm_device */ |
||
614 | wait_queue_head_t queue; /**< VBLANK wait queue */ |
||
615 | struct timer_list disable_timer; /* delayed disable timer */ |
||
6082 | serge | 616 | |
617 | /* vblank counter, protected by dev->vblank_time_lock for writes */ |
||
618 | u32 count; |
||
619 | /* vblank timestamps, protected by dev->vblank_time_lock for writes */ |
||
620 | struct timeval time[DRM_VBLANKTIME_RBSIZE]; |
||
621 | |||
5270 | serge | 622 | atomic_t refcount; /* number of users of vblank interruptsper crtc */ |
623 | u32 last; /* protected by dev->vbl_lock, used */ |
||
624 | /* for wraparound handling */ |
||
625 | u32 last_wait; /* Last vblank seqno waited per CRTC */ |
||
626 | unsigned int inmodeset; /* Display driver is setting mode */ |
||
6082 | serge | 627 | unsigned int pipe; /* crtc index */ |
628 | int framedur_ns; /* frame/field duration in ns */ |
||
629 | int linedur_ns; /* line duration in ns */ |
||
5270 | serge | 630 | bool enabled; /* so we don't call enable more than |
631 | once per disable */ |
||
632 | }; |
||
633 | |||
1408 | serge | 634 | /** |
635 | * DRM device structure. This structure represent a complete card that |
||
636 | * may contain multiple heads. |
||
637 | */ |
||
638 | struct drm_device { |
||
4559 | Serge | 639 | struct list_head legacy_dev_list;/**< list of devices per driver for stealth attach cleanup */ |
1408 | serge | 640 | int if_version; /**< Highest interface version set */ |
641 | |||
5270 | serge | 642 | /** \name Lifetime Management */ |
643 | /*@{ */ |
||
644 | struct kref ref; /**< Object ref-count */ |
||
5056 | serge | 645 | struct device *dev; /**< Device structure of bus-device */ |
646 | struct drm_driver *driver; /**< DRM driver managing the device */ |
||
647 | void *dev_private; /**< DRM driver private data */ |
||
6082 | serge | 648 | struct drm_minor *control; /**< Control node */ |
5056 | serge | 649 | struct drm_minor *primary; /**< Primary node */ |
6082 | serge | 650 | struct drm_minor *render; /**< Render node */ |
5056 | serge | 651 | atomic_t unplugged; /**< Flag whether dev is dead */ |
1408 | serge | 652 | /** \name Locks */ |
653 | /*@{ */ |
||
1630 | serge | 654 | struct mutex struct_mutex; /**< For others */ |
5056 | serge | 655 | struct mutex master_mutex; /**< For drm_minor::master and drm_file::is_master */ |
1408 | serge | 656 | /*@} */ |
657 | |||
658 | /** \name Usage Counters */ |
||
659 | /*@{ */ |
||
5056 | serge | 660 | int open_count; /**< Outstanding files open, protected by drm_global_mutex. */ |
661 | spinlock_t buf_lock; /**< For drm_device::buf_use and a few other things. */ |
||
1408 | serge | 662 | int buf_use; /**< Buffers in use -- cannot alloc */ |
6082 | serge | 663 | atomic_t buf_alloc; /**< Buffer allocation in progress */ |
1408 | serge | 664 | /*@} */ |
665 | |||
666 | struct list_head filelist; |
||
667 | |||
668 | /** \name Memory management */ |
||
669 | /*@{ */ |
||
670 | struct list_head maplist; /**< Linked list of regions */ |
||
671 | |||
672 | /** \name Context handle management */ |
||
673 | /*@{ */ |
||
674 | struct list_head ctxlist; /**< Linked list of context handles */ |
||
1630 | serge | 675 | struct mutex ctxlist_mutex; /**< For ctxlist */ |
1408 | serge | 676 | |
1964 | serge | 677 | struct idr ctx_idr; |
1408 | serge | 678 | |
679 | struct list_head vmalist; /**< List of vmas (for debugging) */ |
||
680 | |||
681 | /*@} */ |
||
682 | |||
3031 | serge | 683 | /** \name DMA support */ |
1408 | serge | 684 | /*@{ */ |
685 | // struct drm_device_dma *dma; /**< Optional pointer for DMA support */ |
||
686 | /*@} */ |
||
687 | |||
688 | /** \name Context support */ |
||
689 | /*@{ */ |
||
5056 | serge | 690 | |
1408 | serge | 691 | __volatile__ long context_flag; /**< Context swapping flag */ |
692 | int last_context; /**< Last current context */ |
||
693 | /*@} */ |
||
694 | |||
695 | /** \name VBLANK IRQ support */ |
||
696 | /*@{ */ |
||
6082 | serge | 697 | bool irq_enabled; |
698 | int irq; |
||
1408 | serge | 699 | |
700 | /* |
||
701 | * At load time, disabling the vblank interrupt won't be allowed since |
||
702 | * old clients may not call the modeset ioctl and therefore misbehave. |
||
703 | * Once the modeset ioctl *has* been called though, we can safely |
||
704 | * disable them when unused. |
||
705 | */ |
||
4559 | Serge | 706 | bool vblank_disable_allowed; |
1408 | serge | 707 | |
5270 | serge | 708 | /* |
709 | * If true, vblank interrupt will be disabled immediately when the |
||
710 | * refcount drops to zero, as opposed to via the vblank disable |
||
711 | * timer. |
||
712 | * This can be set to true it the hardware has a working vblank |
||
713 | * counter and the driver uses drm_vblank_on() and drm_vblank_off() |
||
714 | * appropriately. |
||
715 | */ |
||
716 | bool vblank_disable_immediate; |
||
717 | |||
5056 | serge | 718 | /* array of size num_crtcs */ |
719 | struct drm_vblank_crtc *vblank; |
||
1408 | serge | 720 | |
5056 | serge | 721 | spinlock_t vblank_time_lock; /**< Protects vblank count and time updates during vblank enable/disable */ |
722 | spinlock_t vbl_lock; |
||
723 | |||
1408 | serge | 724 | u32 max_vblank_count; /**< size of vblank counter register */ |
725 | |||
1964 | serge | 726 | /** |
727 | * List of events |
||
728 | */ |
||
729 | struct list_head vblank_event_list; |
||
730 | spinlock_t event_lock; |
||
731 | |||
1408 | serge | 732 | /*@} */ |
733 | |||
734 | // struct drm_agp_head *agp; /**< AGP data */ |
||
735 | |||
736 | struct pci_dev *pdev; /**< PCI device structure */ |
||
5056 | serge | 737 | |
1964 | serge | 738 | unsigned int num_crtcs; /**< Number of CRTCs on this device */ |
1408 | serge | 739 | |
5270 | serge | 740 | struct { |
741 | int context; |
||
742 | struct drm_hw_lock *lock; |
||
743 | } sigdata; |
||
1408 | serge | 744 | |
6082 | serge | 745 | struct drm_mode_config mode_config; /**< Current mode config */ |
1408 | serge | 746 | |
747 | /** \name GEM information */ |
||
748 | /*@{ */ |
||
4103 | Serge | 749 | struct mutex object_name_lock; |
1964 | serge | 750 | struct idr object_name_idr; |
4559 | Serge | 751 | struct drm_vma_offset_manager *vma_offset_manager; |
1408 | serge | 752 | /*@} */ |
1964 | serge | 753 | int switch_power_state; |
1408 | serge | 754 | }; |
755 | |||
1964 | serge | 756 | #define DRM_SWITCH_POWER_ON 0 |
757 | #define DRM_SWITCH_POWER_OFF 1 |
||
758 | #define DRM_SWITCH_POWER_CHANGING 2 |
||
4103 | Serge | 759 | #define DRM_SWITCH_POWER_DYNAMIC_OFF 3 |
1964 | serge | 760 | |
3482 | Serge | 761 | static __inline__ int drm_core_check_feature(struct drm_device *dev, |
762 | int feature) |
||
763 | { |
||
764 | return ((dev->driver->driver_features & feature) ? 1 : 0); |
||
765 | } |
||
1964 | serge | 766 | |
4065 | Serge | 767 | static inline void drm_device_set_unplugged(struct drm_device *dev) |
1408 | serge | 768 | { |
4065 | Serge | 769 | smp_wmb(); |
770 | atomic_set(&dev->unplugged, 1); |
||
1408 | serge | 771 | } |
772 | |||
4065 | Serge | 773 | static inline int drm_device_is_unplugged(struct drm_device *dev) |
1408 | serge | 774 | { |
4065 | Serge | 775 | int ret = atomic_read(&dev->unplugged); |
776 | smp_rmb(); |
||
777 | return ret; |
||
1408 | serge | 778 | } |
779 | |||
780 | |||
781 | /******************************************************************/ |
||
782 | /** \name Internal function definitions */ |
||
783 | /*@{*/ |
||
784 | |||
785 | /* Driver support (drm_drv.h) */ |
||
6082 | serge | 786 | extern int drm_ioctl_permit(u32 flags, struct drm_file *file_priv); |
1408 | serge | 787 | extern long drm_ioctl(struct file *filp, |
6082 | serge | 788 | unsigned int cmd, unsigned long arg); |
1408 | serge | 789 | extern long drm_compat_ioctl(struct file *filp, |
790 | unsigned int cmd, unsigned long arg); |
||
5056 | serge | 791 | extern bool drm_ioctl_flags(unsigned int nr, unsigned int *flags); |
1408 | serge | 792 | |
793 | /* Device support (drm_fops.h) */ |
||
794 | extern int drm_open(struct inode *inode, struct file *filp); |
||
795 | extern ssize_t drm_read(struct file *filp, char __user *buffer, |
||
796 | size_t count, loff_t *offset); |
||
797 | extern int drm_release(struct inode *inode, struct file *filp); |
||
6082 | serge | 798 | extern int drm_new_set_master(struct drm_device *dev, struct drm_file *fpriv); |
1408 | serge | 799 | |
800 | /* Mapping support (drm_vm.h) */ |
||
801 | extern unsigned int drm_poll(struct file *filp, struct poll_table_struct *wait); |
||
802 | |||
5270 | serge | 803 | /* Misc. IOCTL support (drm_ioctl.c) */ |
804 | int drm_noop(struct drm_device *dev, void *data, |
||
6082 | serge | 805 | struct drm_file *file_priv); |
806 | int drm_invalid_op(struct drm_device *dev, void *data, |
||
807 | struct drm_file *file_priv); |
||
1408 | serge | 808 | |
809 | /* Cache management (drm_cache.c) */ |
||
810 | void drm_clflush_pages(struct page *pages[], unsigned long num_pages); |
||
3031 | serge | 811 | void drm_clflush_sg(struct sg_table *st); |
5056 | serge | 812 | void drm_clflush_virt_range(void *addr, unsigned long length); |
1408 | serge | 813 | |
814 | /* |
||
815 | * These are exported to drivers so that they can implement fencing using |
||
816 | * DMA quiscent + idle. DMA quiescent usually requires the hardware lock. |
||
817 | */ |
||
818 | |||
819 | /* IRQ support (drm_irq.h) */ |
||
5056 | serge | 820 | extern int drm_irq_install(struct drm_device *dev, int irq); |
1408 | serge | 821 | extern int drm_irq_uninstall(struct drm_device *dev); |
822 | |||
6082 | serge | 823 | extern int drm_vblank_init(struct drm_device *dev, unsigned int num_crtcs); |
1408 | serge | 824 | extern int drm_wait_vblank(struct drm_device *dev, void *data, |
825 | struct drm_file *filp); |
||
6082 | serge | 826 | extern u32 drm_vblank_count(struct drm_device *dev, unsigned int pipe); |
827 | extern u32 drm_crtc_vblank_count(struct drm_crtc *crtc); |
||
828 | extern u32 drm_vblank_count_and_time(struct drm_device *dev, unsigned int pipe, |
||
1964 | serge | 829 | struct timeval *vblanktime); |
6082 | serge | 830 | extern u32 drm_crtc_vblank_count_and_time(struct drm_crtc *crtc, |
831 | struct timeval *vblanktime); |
||
832 | extern void drm_send_vblank_event(struct drm_device *dev, unsigned int pipe, |
||
833 | struct drm_pending_vblank_event *e); |
||
834 | extern void drm_crtc_send_vblank_event(struct drm_crtc *crtc, |
||
835 | struct drm_pending_vblank_event *e); |
||
836 | extern bool drm_handle_vblank(struct drm_device *dev, unsigned int pipe); |
||
837 | extern bool drm_crtc_handle_vblank(struct drm_crtc *crtc); |
||
838 | extern int drm_vblank_get(struct drm_device *dev, unsigned int pipe); |
||
839 | extern void drm_vblank_put(struct drm_device *dev, unsigned int pipe); |
||
5056 | serge | 840 | extern int drm_crtc_vblank_get(struct drm_crtc *crtc); |
841 | extern void drm_crtc_vblank_put(struct drm_crtc *crtc); |
||
6082 | serge | 842 | extern void drm_wait_one_vblank(struct drm_device *dev, unsigned int pipe); |
5270 | serge | 843 | extern void drm_crtc_wait_one_vblank(struct drm_crtc *crtc); |
6082 | serge | 844 | extern void drm_vblank_off(struct drm_device *dev, unsigned int pipe); |
845 | extern void drm_vblank_on(struct drm_device *dev, unsigned int pipe); |
||
5056 | serge | 846 | extern void drm_crtc_vblank_off(struct drm_crtc *crtc); |
6082 | serge | 847 | extern void drm_crtc_vblank_reset(struct drm_crtc *crtc); |
5056 | serge | 848 | extern void drm_crtc_vblank_on(struct drm_crtc *crtc); |
1408 | serge | 849 | extern void drm_vblank_cleanup(struct drm_device *dev); |
6082 | serge | 850 | extern u32 drm_vblank_no_hw_counter(struct drm_device *dev, unsigned int pipe); |
5056 | serge | 851 | |
1964 | serge | 852 | extern int drm_calc_vbltimestamp_from_scanoutpos(struct drm_device *dev, |
6082 | serge | 853 | unsigned int pipe, int *max_error, |
1964 | serge | 854 | struct timeval *vblank_time, |
855 | unsigned flags, |
||
4559 | Serge | 856 | const struct drm_display_mode *mode); |
857 | extern void drm_calc_timestamping_constants(struct drm_crtc *crtc, |
||
858 | const struct drm_display_mode *mode); |
||
1964 | serge | 859 | |
5270 | serge | 860 | /** |
861 | * drm_crtc_vblank_waitqueue - get vblank waitqueue for the CRTC |
||
862 | * @crtc: which CRTC's vblank waitqueue to retrieve |
||
863 | * |
||
864 | * This function returns a pointer to the vblank waitqueue for the CRTC. |
||
865 | * Drivers can use this to implement vblank waits using wait_event() & co. |
||
866 | */ |
||
867 | static inline wait_queue_head_t *drm_crtc_vblank_waitqueue(struct drm_crtc *crtc) |
||
868 | { |
||
869 | return &crtc->dev->vblank[drm_crtc_index(crtc)].queue; |
||
870 | } |
||
1964 | serge | 871 | |
1408 | serge | 872 | /* Modesetting support */ |
6082 | serge | 873 | extern void drm_vblank_pre_modeset(struct drm_device *dev, unsigned int pipe); |
874 | extern void drm_vblank_post_modeset(struct drm_device *dev, unsigned int pipe); |
||
1408 | serge | 875 | |
876 | /* Stub support (drm_stub.h) */ |
||
877 | extern struct drm_master *drm_master_get(struct drm_master *master); |
||
878 | extern void drm_master_put(struct drm_master **master); |
||
1964 | serge | 879 | |
1408 | serge | 880 | extern void drm_put_dev(struct drm_device *dev); |
3031 | serge | 881 | extern void drm_unplug_dev(struct drm_device *dev); |
1408 | serge | 882 | extern unsigned int drm_debug; |
6082 | serge | 883 | extern bool drm_atomic; |
1408 | serge | 884 | |
885 | /* Debugfs support */ |
||
886 | #if defined(CONFIG_DEBUG_FS) |
||
4559 | Serge | 887 | extern int drm_debugfs_create_files(const struct drm_info_list *files, |
888 | int count, struct dentry *root, |
||
6082 | serge | 889 | struct drm_minor *minor); |
4559 | Serge | 890 | extern int drm_debugfs_remove_files(const struct drm_info_list *files, |
891 | int count, struct drm_minor *minor); |
||
892 | #else |
||
893 | static inline int drm_debugfs_create_files(const struct drm_info_list *files, |
||
894 | int count, struct dentry *root, |
||
895 | struct drm_minor *minor) |
||
896 | { |
||
897 | return 0; |
||
898 | } |
||
899 | |||
900 | static inline int drm_debugfs_remove_files(const struct drm_info_list *files, |
||
901 | int count, struct drm_minor *minor) |
||
902 | { |
||
903 | return 0; |
||
904 | } |
||
1408 | serge | 905 | #endif |
906 | |||
5270 | serge | 907 | extern struct dma_buf *drm_gem_prime_export(struct drm_device *dev, |
908 | struct drm_gem_object *obj, int flags); |
||
909 | extern int drm_gem_prime_handle_to_fd(struct drm_device *dev, |
||
910 | struct drm_file *file_priv, uint32_t handle, uint32_t flags, |
||
911 | int *prime_fd); |
||
912 | extern struct drm_gem_object *drm_gem_prime_import(struct drm_device *dev, |
||
913 | struct dma_buf *dma_buf); |
||
914 | extern int drm_gem_prime_fd_to_handle(struct drm_device *dev, |
||
915 | struct drm_file *file_priv, int prime_fd, uint32_t *handle); |
||
916 | extern void drm_gem_dmabuf_release(struct dma_buf *dma_buf); |
||
1408 | serge | 917 | |
5270 | serge | 918 | extern int drm_prime_sg_to_page_addr_arrays(struct sg_table *sgt, struct page **pages, |
919 | dma_addr_t *addrs, int max_pages); |
||
920 | extern struct sg_table *drm_prime_pages_to_sg(struct page **pages, unsigned int nr_pages); |
||
921 | extern void drm_prime_gem_destroy(struct drm_gem_object *obj, struct sg_table *sg); |
||
1408 | serge | 922 | |
923 | |||
5270 | serge | 924 | extern struct drm_dma_handle *drm_pci_alloc(struct drm_device *dev, size_t size, |
6082 | serge | 925 | size_t align); |
5270 | serge | 926 | extern void drm_pci_free(struct drm_device *dev, struct drm_dma_handle * dmah); |
1408 | serge | 927 | |
928 | /* sysfs support (drm_sysfs.c) */ |
||
929 | extern void drm_sysfs_hotplug_event(struct drm_device *dev); |
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2967 | Serge | 930 | |
1408 | serge | 931 | |
5178 | serge | 932 | struct drm_device *drm_dev_alloc(struct drm_driver *driver, |
933 | struct device *parent); |
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934 | void drm_dev_ref(struct drm_device *dev); |
||
935 | void drm_dev_unref(struct drm_device *dev); |
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5270 | serge | 936 | int drm_dev_register(struct drm_device *dev, unsigned long flags); |
937 | void drm_dev_unregister(struct drm_device *dev); |
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938 | int drm_dev_set_unique(struct drm_device *dev, const char *fmt, ...); |
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5178 | serge | 939 | |
5270 | serge | 940 | struct drm_minor *drm_minor_acquire(unsigned int minor_id); |
941 | void drm_minor_release(struct drm_minor *minor); |
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942 | |||
4103 | Serge | 943 | /*@}*/ |
3031 | serge | 944 | |
5178 | serge | 945 | /* PCI section */ |
946 | static __inline__ int drm_pci_device_is_agp(struct drm_device *dev) |
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947 | { |
||
1408 | serge | 948 | |
5178 | serge | 949 | return pci_find_capability(dev->pdev, PCI_CAP_ID_AGP); |
950 | } |
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951 | void drm_pci_agp_destroy(struct drm_device *dev); |
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952 | |||
5056 | serge | 953 | #if 0 |
954 | extern int drm_pci_init(struct drm_driver *driver, struct pci_driver *pdriver); |
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955 | extern void drm_pci_exit(struct drm_driver *driver, struct pci_driver *pdriver); |
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4103 | Serge | 956 | extern int drm_get_pci_dev(struct pci_dev *pdev, |
957 | const struct pci_device_id *ent, |
||
958 | struct drm_driver *driver); |
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5056 | serge | 959 | #endif |
1408 | serge | 960 | |
3031 | serge | 961 | #define DRM_PCIE_SPEED_25 1 |
962 | #define DRM_PCIE_SPEED_50 2 |
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963 | #define DRM_PCIE_SPEED_80 4 |
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1408 | serge | 964 | |
3031 | serge | 965 | extern int drm_pcie_get_speed_cap_mask(struct drm_device *dev, u32 *speed_mask); |
966 | |||
2967 | Serge | 967 | |
968 | static __inline__ int drm_device_is_pcie(struct drm_device *dev) |
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969 | { |
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970 | return pci_find_capability(dev->pdev, PCI_CAP_ID_EXP); |
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971 | } |
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3031 | serge | 972 | |
4559 | Serge | 973 | #define LFB_SIZE 0x1000000 |
4103 | Serge | 974 | extern struct drm_device *main_device; |
975 | extern struct drm_file *drm_file_handlers[256]; |
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3391 | Serge | 976 | |
1408 | serge | 977 | #endif>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>><>><>><>><>><>>>>><> |