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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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6102 | serge | 42 | #include |
43 | #include |
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5270 | serge | 44 | #include |
1408 | serge | 45 | #include |
46 | #include |
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5270 | serge | 47 | #include |
48 | |||
1408 | serge | 49 | #include |
5270 | serge | 50 | #include |
51 | #include |
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3391 | Serge | 52 | #include |
6936 | serge | 53 | #include |
1408 | serge | 54 | |
3763 | Serge | 55 | #include |
56 | #include |
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57 | |||
5056 | serge | 58 | |
3747 | Serge | 59 | #include |
5056 | serge | 60 | #include |
61 | #include |
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5270 | serge | 62 | #include |
3482 | Serge | 63 | #include |
64 | |||
5270 | serge | 65 | #include |
66 | #include |
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3482 | Serge | 67 | |
5270 | serge | 68 | #include |
69 | #include |
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70 | #include |
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71 | #include |
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72 | #include |
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73 | #include |
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74 | #include |
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75 | #include |
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4103 | Serge | 76 | #include |
1408 | serge | 77 | |
3031 | serge | 78 | struct module; |
1408 | serge | 79 | |
80 | struct drm_file; |
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81 | struct drm_device; |
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5270 | serge | 82 | struct drm_agp_head; |
83 | struct drm_local_map; |
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84 | struct drm_device_dma; |
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85 | struct drm_dma_handle; |
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86 | struct drm_gem_object; |
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1408 | serge | 87 | |
3391 | Serge | 88 | struct device_node; |
89 | struct videomode; |
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5056 | serge | 90 | struct reservation_object; |
5270 | serge | 91 | struct dma_buf_attachment; |
4103 | Serge | 92 | |
93 | struct inode; |
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94 | struct poll_table_struct; |
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95 | struct sg_table; |
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96 | |||
1408 | serge | 97 | #define KHZ2PICOS(a) (1000000000UL/(a)) |
98 | |||
3031 | serge | 99 | /* |
5056 | serge | 100 | * 4 debug categories are defined: |
3031 | serge | 101 | * |
5056 | serge | 102 | * CORE: Used in the generic drm code: drm_ioctl.c, drm_mm.c, drm_memory.c, ... |
103 | * This is the category used by the DRM_DEBUG() macro. |
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3031 | serge | 104 | * |
5056 | serge | 105 | * DRIVER: Used in the vendor specific part of the driver: i915, radeon, ... |
106 | * This is the category used by the DRM_DEBUG_DRIVER() macro. |
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3031 | serge | 107 | * |
5056 | serge | 108 | * KMS: used in the modesetting code. |
109 | * This is the category used by the DRM_DEBUG_KMS() macro. |
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110 | * |
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111 | * PRIME: used in the prime code. |
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112 | * This is the category used by the DRM_DEBUG_PRIME() macro. |
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113 | * |
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6082 | serge | 114 | * ATOMIC: used in the atomic code. |
115 | * This is the category used by the DRM_DEBUG_ATOMIC() macro. |
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116 | * |
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117 | * VBL: used for verbose debug message in the vblank code |
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118 | * This is the category used by the DRM_DEBUG_VBL() macro. |
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119 | * |
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5056 | serge | 120 | * Enabling verbose debug messages is done through the drm.debug parameter, |
121 | * each category being enabled by a bit. |
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122 | * |
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123 | * drm.debug=0x1 will enable CORE messages |
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124 | * drm.debug=0x2 will enable DRIVER messages |
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125 | * drm.debug=0x3 will enable CORE and DRIVER messages |
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126 | * ... |
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6082 | serge | 127 | * drm.debug=0x3f will enable all messages |
5056 | serge | 128 | * |
129 | * An interesting feature is that it's possible to enable verbose logging at |
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130 | * run-time by echoing the debug value in its sysfs node: |
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131 | * # echo 0xf > /sys/module/drm/parameters/debug |
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3031 | serge | 132 | */ |
5056 | serge | 133 | #define DRM_UT_CORE 0x01 |
134 | #define DRM_UT_DRIVER 0x02 |
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6082 | serge | 135 | #define DRM_UT_KMS 0x04 |
5056 | serge | 136 | #define DRM_UT_PRIME 0x08 |
6082 | serge | 137 | #define DRM_UT_ATOMIC 0x10 |
138 | #define DRM_UT_VBL 0x20 |
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3031 | serge | 139 | |
5056 | serge | 140 | extern __printf(2, 3) |
141 | void drm_ut_debug_printk(const char *function_name, |
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6082 | serge | 142 | const char *format, ...); |
5270 | serge | 143 | extern __printf(1, 2) |
144 | void drm_err(const char *format, ...); |
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1408 | serge | 145 | |
146 | /***********************************************************************/ |
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147 | /** \name DRM template customization defaults */ |
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148 | /*@{*/ |
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149 | |||
150 | /* driver capabilities and requirements mask */ |
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6082 | serge | 151 | #define DRIVER_USE_AGP 0x1 |
152 | #define DRIVER_PCI_DMA 0x8 |
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153 | #define DRIVER_SG 0x10 |
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154 | #define DRIVER_HAVE_DMA 0x20 |
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155 | #define DRIVER_HAVE_IRQ 0x40 |
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156 | #define DRIVER_IRQ_SHARED 0x80 |
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157 | #define DRIVER_GEM 0x1000 |
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158 | #define DRIVER_MODESET 0x2000 |
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159 | #define DRIVER_PRIME 0x4000 |
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160 | #define DRIVER_RENDER 0x8000 |
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161 | #define DRIVER_ATOMIC 0x10000 |
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162 | #define DRIVER_KMS_LEGACY_CONTEXT 0x20000 |
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1408 | serge | 163 | |
164 | /***********************************************************************/ |
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165 | /** \name Macros to make printk easier */ |
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166 | /*@{*/ |
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167 | |||
168 | /** |
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169 | * Error output. |
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170 | * |
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171 | * \param fmt printf() like format string. |
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172 | * \param arg arguments |
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173 | */ |
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3031 | serge | 174 | #define DRM_ERROR(fmt, ...) \ |
6082 | serge | 175 | printk("DRM Error" fmt, ##__VA_ARGS__) |
1408 | serge | 176 | |
4559 | Serge | 177 | /** |
178 | * Rate limited error output. Like DRM_ERROR() but won't flood the log. |
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179 | * |
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180 | * \param fmt printf() like format string. |
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181 | * \param arg arguments |
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182 | */ |
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183 | #define DRM_ERROR_RATELIMITED(fmt, ...) \ |
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184 | ({ \ |
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185 | static DEFINE_RATELIMIT_STATE(_rs, \ |
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186 | DEFAULT_RATELIMIT_INTERVAL, \ |
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187 | DEFAULT_RATELIMIT_BURST); \ |
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188 | \ |
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189 | if (__ratelimit(&_rs)) \ |
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5270 | serge | 190 | drm_err(fmt, ##__VA_ARGS__); \ |
4559 | Serge | 191 | }) |
192 | |||
3031 | serge | 193 | #define DRM_INFO(fmt, ...) \ |
194 | printk(KERN_INFO "[" DRM_NAME "] " fmt, ##__VA_ARGS__) |
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1408 | serge | 195 | |
5056 | serge | 196 | #define DRM_INFO_ONCE(fmt, ...) \ |
197 | printk_once(KERN_INFO "[" DRM_NAME "] " fmt, ##__VA_ARGS__) |
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198 | |||
1408 | serge | 199 | /** |
200 | * Debug output. |
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201 | * |
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202 | * \param fmt printf() like format string. |
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203 | * \param arg arguments |
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204 | */ |
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205 | #if DRM_DEBUG_CODE |
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5056 | serge | 206 | #define DRM_DEBUG(fmt, args...) \ |
3031 | serge | 207 | do { \ |
5056 | serge | 208 | printk(KERN_INFO "[" DRM_NAME "] " fmt, ##args); \ |
1408 | serge | 209 | } while (0) |
210 | |||
5056 | serge | 211 | #define DRM_DEBUG_DRIVER(fmt, args...) \ |
3031 | serge | 212 | do { \ |
5056 | serge | 213 | printk(KERN_INFO "[" DRM_NAME "] " fmt, ##args); \ |
3031 | serge | 214 | } while (0) |
5056 | serge | 215 | #define DRM_DEBUG_KMS(fmt, args...) \ |
1408 | serge | 216 | do { \ |
5056 | serge | 217 | printk(KERN_INFO "[" DRM_NAME "] " fmt, ##args); \ |
1408 | serge | 218 | } while (0) |
5056 | serge | 219 | #define DRM_DEBUG_PRIME(fmt, args...) \ |
1408 | serge | 220 | do { \ |
5056 | serge | 221 | printk(KERN_INFO "[" DRM_NAME "] " fmt, ##args); \ |
1408 | serge | 222 | } while (0) |
6082 | serge | 223 | #define DRM_DEBUG_ATOMIC(fmt, args...) \ |
224 | do { \ |
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225 | printk(KERN_INFO "[" DRM_NAME "] " fmt, ##args); \ |
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226 | } while (0) |
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227 | #define DRM_DEBUG_VBL(fmt, args...) \ |
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228 | do { \ |
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229 | printk(KERN_INFO "[" DRM_NAME "] " fmt, ##args); \ |
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230 | } while (0) |
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231 | |||
1408 | serge | 232 | #else |
233 | #define DRM_DEBUG_DRIVER(fmt, args...) do { } while (0) |
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234 | #define DRM_DEBUG_KMS(fmt, args...) do { } while (0) |
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3031 | serge | 235 | #define DRM_DEBUG_PRIME(fmt, args...) do { } while (0) |
1408 | serge | 236 | #define DRM_DEBUG(fmt, arg...) do { } while (0) |
6082 | serge | 237 | #define DRM_DEBUG_ATOMIC(fmt, args...) do { } while (0) |
238 | #define DRM_DEBUG_VBL(fmt, args...) do { } while (0) |
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1408 | serge | 239 | #endif |
240 | /*@}*/ |
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241 | |||
242 | /***********************************************************************/ |
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243 | /** \name Internal types and structures */ |
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244 | /*@{*/ |
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245 | |||
246 | #define DRM_IF_VERSION(maj, min) (maj << 16 | min) |
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247 | |||
248 | /** |
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249 | * Ioctl function type. |
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250 | * |
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251 | * \param inode device inode. |
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252 | * \param file_priv DRM file private pointer. |
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253 | * \param cmd command. |
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254 | * \param arg argument. |
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255 | */ |
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256 | typedef int drm_ioctl_t(struct drm_device *dev, void *data, |
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257 | struct drm_file *file_priv); |
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258 | |||
259 | typedef int drm_ioctl_compat_t(struct file *filp, unsigned int cmd, |
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260 | unsigned long arg); |
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261 | |||
262 | #define DRM_IOCTL_NR(n) _IOC_NR(n) |
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263 | #define DRM_MAJOR 226 |
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264 | |||
265 | #define DRM_AUTH 0x1 |
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266 | #define DRM_MASTER 0x2 |
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267 | #define DRM_ROOT_ONLY 0x4 |
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268 | #define DRM_CONTROL_ALLOW 0x8 |
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269 | #define DRM_UNLOCKED 0x10 |
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4103 | Serge | 270 | #define DRM_RENDER_ALLOW 0x20 |
1408 | serge | 271 | |
272 | struct drm_ioctl_desc { |
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273 | unsigned int cmd; |
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274 | int flags; |
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275 | drm_ioctl_t *func; |
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3747 | Serge | 276 | const char *name; |
1408 | serge | 277 | }; |
278 | |||
279 | /** |
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280 | * Creates a driver or general drm_ioctl_desc array entry for the given |
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281 | * ioctl, for use by drm_ioctl(). |
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282 | */ |
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283 | |||
6082 | serge | 284 | #define DRM_IOCTL_DEF_DRV(ioctl, _func, _flags) \ |
285 | [DRM_IOCTL_NR(DRM_IOCTL_##ioctl) - DRM_COMMAND_BASE] = { \ |
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286 | .cmd = DRM_IOCTL_##ioctl, \ |
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287 | .func = _func, \ |
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288 | .flags = _flags, \ |
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289 | .name = #ioctl \ |
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290 | } |
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1964 | serge | 291 | |
1408 | serge | 292 | /* Event queued up for userspace to read */ |
293 | struct drm_pending_event { |
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294 | struct drm_event *event; |
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295 | struct list_head link; |
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296 | struct drm_file *file_priv; |
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1964 | serge | 297 | pid_t pid; /* pid of requester, no guarantee it's valid by the time |
298 | we deliver the event, for tracing only */ |
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1408 | serge | 299 | void (*destroy)(struct drm_pending_event *event); |
300 | }; |
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301 | |||
3031 | serge | 302 | /* initial implementaton using a linked list - todo hashtab */ |
303 | struct drm_prime_file_private { |
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304 | struct list_head head; |
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305 | struct mutex lock; |
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306 | }; |
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307 | |||
1408 | serge | 308 | /** File private data */ |
309 | struct drm_file { |
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4559 | Serge | 310 | unsigned authenticated :1; |
5056 | serge | 311 | /* Whether we're master for a minor. Protected by master_mutex */ |
312 | unsigned is_master :1; |
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4559 | Serge | 313 | /* true when the client has asked us to expose stereo 3D mode flags */ |
314 | unsigned stereo_allowed :1; |
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5056 | serge | 315 | /* |
316 | * true if client understands CRTC primary planes and cursor planes |
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317 | * in the plane list |
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318 | */ |
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319 | unsigned universal_planes:1; |
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6082 | serge | 320 | /* true if client understands atomic properties */ |
321 | unsigned atomic:1; |
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6336 | serge | 322 | /* |
323 | * This client is allowed to gain master privileges for @master. |
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324 | * Protected by struct drm_device::master_mutex. |
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325 | */ |
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326 | unsigned allowed_master:1; |
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1408 | serge | 327 | struct list_head lhead; |
6082 | serge | 328 | struct drm_minor *minor; |
1408 | serge | 329 | unsigned long lock_count; |
330 | |||
331 | /** Mapping of mm object handles to object pointers. */ |
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332 | struct idr object_idr; |
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333 | /** Lock for synchronization of access to object_idr. */ |
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334 | spinlock_t table_lock; |
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335 | |||
336 | void *driver_priv; |
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337 | |||
5056 | serge | 338 | struct drm_master *master; /* master this node is currently associated with |
339 | N.B. not always minor->master */ |
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340 | /** |
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341 | * fbs - List of framebuffers associated with this file. |
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342 | * |
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343 | * Protected by fbs_lock. Note that the fbs list holds a reference on |
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344 | * the fb object to prevent it from untimely disappearing. |
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345 | */ |
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1408 | serge | 346 | struct list_head fbs; |
5056 | serge | 347 | struct mutex fbs_lock; |
1408 | serge | 348 | |
6082 | serge | 349 | /** User-created blob properties; this retains a reference on the |
350 | * property. */ |
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351 | struct list_head blobs; |
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352 | |||
1408 | serge | 353 | wait_queue_head_t event_wait; |
354 | struct list_head event_list; |
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355 | int event_space; |
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356 | }; |
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357 | |||
358 | /** |
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359 | * Lock data. |
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360 | */ |
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361 | struct drm_lock_data { |
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362 | struct drm_hw_lock *hw_lock; /**< Hardware lock */ |
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363 | /** Private of lock holder's file (NULL=kernel) */ |
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364 | struct drm_file *file_priv; |
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365 | wait_queue_head_t lock_queue; /**< Queue of blocked processes */ |
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366 | unsigned long lock_time; /**< Time of last lock in jiffies */ |
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367 | spinlock_t spinlock; |
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368 | uint32_t kernel_waiters; |
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369 | uint32_t user_waiters; |
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370 | int idle_has_lock; |
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371 | }; |
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372 | |||
373 | /** |
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5056 | serge | 374 | * struct drm_master - drm master structure |
375 | * |
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376 | * @refcount: Refcount for this master object. |
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377 | * @minor: Link back to minor char device we are master for. Immutable. |
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378 | * @unique: Unique identifier: e.g. busid. Protected by drm_global_mutex. |
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379 | * @unique_len: Length of unique field. Protected by drm_global_mutex. |
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6082 | serge | 380 | * @magic_map: Map of used authentication tokens. Protected by struct_mutex. |
5056 | serge | 381 | * @lock: DRI lock information. |
382 | * @driver_priv: Pointer to driver-private information. |
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383 | */ |
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1408 | serge | 384 | struct drm_master { |
5056 | serge | 385 | struct kref refcount; |
386 | struct drm_minor *minor; |
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387 | char *unique; |
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388 | int unique_len; |
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6082 | serge | 389 | struct idr magic_map; |
5270 | serge | 390 | struct drm_lock_data lock; |
5056 | serge | 391 | void *driver_priv; |
1408 | serge | 392 | }; |
393 | |||
1964 | serge | 394 | /* Size of ringbuffer for vblank timestamps. Just double-buffer |
395 | * in initial implementation. |
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396 | */ |
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397 | #define DRM_VBLANKTIME_RBSIZE 2 |
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398 | |||
399 | /* Flags and return codes for get_vblank_timestamp() driver function. */ |
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400 | #define DRM_CALLED_FROM_VBLIRQ 1 |
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401 | #define DRM_VBLANKTIME_SCANOUTPOS_METHOD (1 << 0) |
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5270 | serge | 402 | #define DRM_VBLANKTIME_IN_VBLANK (1 << 1) |
1964 | serge | 403 | |
404 | /* get_scanout_position() return flags */ |
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405 | #define DRM_SCANOUTPOS_VALID (1 << 0) |
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5270 | serge | 406 | #define DRM_SCANOUTPOS_IN_VBLANK (1 << 1) |
1964 | serge | 407 | #define DRM_SCANOUTPOS_ACCURATE (1 << 2) |
408 | |||
1408 | serge | 409 | /** |
410 | * DRM driver structure. This structure represent the common code for |
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411 | * a family of cards. There will one drm_device for each card present |
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412 | * in this family |
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413 | */ |
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414 | struct drm_driver { |
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415 | int (*load) (struct drm_device *, unsigned long flags); |
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416 | int (*open) (struct drm_device *, struct drm_file *); |
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417 | |||
418 | /** |
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419 | * get_vblank_counter - get raw hardware vblank counter |
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420 | * @dev: DRM device |
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6082 | serge | 421 | * @pipe: counter to fetch |
1408 | serge | 422 | * |
3031 | serge | 423 | * Driver callback for fetching a raw hardware vblank counter for @crtc. |
424 | * If a device doesn't have a hardware counter, the driver can simply |
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425 | * return the value of drm_vblank_count. The DRM core will account for |
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426 | * missed vblank events while interrupts where disabled based on system |
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427 | * timestamps. |
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1408 | serge | 428 | * |
429 | * Wraparound handling and loss of events due to modesetting is dealt |
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430 | * with in the DRM core code. |
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431 | * |
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432 | * RETURNS |
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433 | * Raw vblank counter value. |
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434 | */ |
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6082 | serge | 435 | u32 (*get_vblank_counter) (struct drm_device *dev, unsigned int pipe); |
1408 | serge | 436 | |
437 | /** |
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438 | * enable_vblank - enable vblank interrupt events |
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439 | * @dev: DRM device |
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6082 | serge | 440 | * @pipe: which irq to enable |
1408 | serge | 441 | * |
442 | * Enable vblank interrupts for @crtc. If the device doesn't have |
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443 | * a hardware vblank counter, this routine should be a no-op, since |
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444 | * interrupts will have to stay on to keep the count accurate. |
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445 | * |
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446 | * RETURNS |
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447 | * Zero on success, appropriate errno if the given @crtc's vblank |
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448 | * interrupt cannot be enabled. |
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449 | */ |
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6082 | serge | 450 | int (*enable_vblank) (struct drm_device *dev, unsigned int pipe); |
1408 | serge | 451 | |
452 | /** |
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453 | * disable_vblank - disable vblank interrupt events |
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454 | * @dev: DRM device |
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6082 | serge | 455 | * @pipe: which irq to enable |
1408 | serge | 456 | * |
457 | * Disable vblank interrupts for @crtc. If the device doesn't have |
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458 | * a hardware vblank counter, this routine should be a no-op, since |
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459 | * interrupts will have to stay on to keep the count accurate. |
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460 | */ |
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6082 | serge | 461 | void (*disable_vblank) (struct drm_device *dev, unsigned int pipe); |
462 | |||
1408 | serge | 463 | /** |
6082 | serge | 464 | * Called by \c drm_device_is_agp. Typically used to determine if a |
465 | * card is really attached to AGP or not. |
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466 | * |
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467 | * \param dev DRM device handle |
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468 | * |
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469 | * \returns |
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470 | * One of three values is returned depending on whether or not the |
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471 | * card is absolutely \b not AGP (return of 0), absolutely \b is AGP |
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472 | * (return of 1), or may or may not be AGP (return of 2). |
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473 | */ |
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474 | int (*device_is_agp) (struct drm_device *dev); |
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475 | |||
476 | /** |
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1964 | serge | 477 | * Called by vblank timestamping code. |
478 | * |
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4559 | Serge | 479 | * Return the current display scanout position from a crtc, and an |
480 | * optional accurate ktime_get timestamp of when position was measured. |
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1964 | serge | 481 | * |
482 | * \param dev DRM device. |
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6082 | serge | 483 | * \param pipe Id of the crtc to query. |
4559 | Serge | 484 | * \param flags Flags from the caller (DRM_CALLED_FROM_VBLIRQ or 0). |
1964 | serge | 485 | * \param *vpos Target location for current vertical scanout position. |
486 | * \param *hpos Target location for current horizontal scanout position. |
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4559 | Serge | 487 | * \param *stime Target location for timestamp taken immediately before |
488 | * scanout position query. Can be NULL to skip timestamp. |
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489 | * \param *etime Target location for timestamp taken immediately after |
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490 | * scanout position query. Can be NULL to skip timestamp. |
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6082 | serge | 491 | * \param mode Current display timings. |
1964 | serge | 492 | * |
493 | * Returns vpos as a positive number while in active scanout area. |
||
494 | * Returns vpos as a negative number inside vblank, counting the number |
||
495 | * of scanlines to go until end of vblank, e.g., -1 means "one scanline |
||
496 | * until start of active scanout / end of vblank." |
||
497 | * |
||
498 | * \return Flags, or'ed together as follows: |
||
499 | * |
||
500 | * DRM_SCANOUTPOS_VALID = Query successful. |
||
501 | * DRM_SCANOUTPOS_INVBL = Inside vblank. |
||
502 | * DRM_SCANOUTPOS_ACCURATE = Returned position is accurate. A lack of |
||
503 | * this flag means that returned position may be offset by a constant |
||
504 | * but unknown small number of scanlines wrt. real scanout position. |
||
505 | * |
||
506 | */ |
||
6082 | serge | 507 | int (*get_scanout_position) (struct drm_device *dev, unsigned int pipe, |
508 | unsigned int flags, int *vpos, int *hpos, |
||
509 | ktime_t *stime, ktime_t *etime, |
||
510 | const struct drm_display_mode *mode); |
||
1964 | serge | 511 | |
512 | /** |
||
513 | * Called by \c drm_get_last_vbltimestamp. Should return a precise |
||
514 | * timestamp when the most recent VBLANK interval ended or will end. |
||
515 | * |
||
516 | * Specifically, the timestamp in @vblank_time should correspond as |
||
517 | * closely as possible to the time when the first video scanline of |
||
518 | * the video frame after the end of VBLANK will start scanning out, |
||
2967 | Serge | 519 | * the time immediately after end of the VBLANK interval. If the |
1964 | serge | 520 | * @crtc is currently inside VBLANK, this will be a time in the future. |
521 | * If the @crtc is currently scanning out a frame, this will be the |
||
522 | * past start time of the current scanout. This is meant to adhere |
||
523 | * to the OpenML OML_sync_control extension specification. |
||
524 | * |
||
525 | * \param dev dev DRM device handle. |
||
6082 | serge | 526 | * \param pipe crtc for which timestamp should be returned. |
1964 | serge | 527 | * \param *max_error Maximum allowable timestamp error in nanoseconds. |
528 | * Implementation should strive to provide timestamp |
||
529 | * with an error of at most *max_error nanoseconds. |
||
530 | * Returns true upper bound on error for timestamp. |
||
531 | * \param *vblank_time Target location for returned vblank timestamp. |
||
532 | * \param flags 0 = Defaults, no special treatment needed. |
||
533 | * \param DRM_CALLED_FROM_VBLIRQ = Function is called from vblank |
||
534 | * irq handler. Some drivers need to apply some workarounds |
||
535 | * for gpu-specific vblank irq quirks if flag is set. |
||
536 | * |
||
537 | * \returns |
||
538 | * Zero if timestamping isn't supported in current display mode or a |
||
539 | * negative number on failure. A positive status code on success, |
||
540 | * which describes how the vblank_time timestamp was computed. |
||
541 | */ |
||
6082 | serge | 542 | int (*get_vblank_timestamp) (struct drm_device *dev, unsigned int pipe, |
1964 | serge | 543 | int *max_error, |
544 | struct timeval *vblank_time, |
||
545 | unsigned flags); |
||
546 | |||
1408 | serge | 547 | /* these have to be filled in */ |
548 | |||
5056 | serge | 549 | irqreturn_t(*irq_handler) (int irq, void *arg); |
1408 | serge | 550 | void (*irq_preinstall) (struct drm_device *dev); |
551 | int (*irq_postinstall) (struct drm_device *dev); |
||
552 | void (*irq_uninstall) (struct drm_device *dev); |
||
553 | |||
554 | /** |
||
555 | * Driver-specific constructor for drm_gem_objects, to set up |
||
556 | * obj->driver_private. |
||
557 | * |
||
558 | * Returns 0 on success. |
||
559 | */ |
||
560 | void (*gem_free_object) (struct drm_gem_object *obj); |
||
2967 | Serge | 561 | int (*gem_open_object) (struct drm_gem_object *, struct drm_file *); |
562 | void (*gem_close_object) (struct drm_gem_object *, struct drm_file *); |
||
1408 | serge | 563 | u32 driver_features; |
5056 | serge | 564 | int dev_priv_size; |
1408 | serge | 565 | }; |
566 | |||
5056 | serge | 567 | enum drm_minor_type { |
568 | DRM_MINOR_LEGACY, |
||
569 | DRM_MINOR_CONTROL, |
||
570 | DRM_MINOR_RENDER, |
||
571 | DRM_MINOR_CNT, |
||
572 | }; |
||
1408 | serge | 573 | |
574 | /** |
||
575 | * Info file list entry. This structure represents a debugfs or proc file to |
||
576 | * be created by the drm core |
||
577 | */ |
||
578 | struct drm_info_list { |
||
579 | const char *name; /** file name */ |
||
2967 | Serge | 580 | // int (*show)(struct seq_file*, void*); /** show callback */ |
1408 | serge | 581 | u32 driver_features; /**< Required driver features for this entry */ |
582 | void *data; |
||
583 | }; |
||
584 | |||
585 | /** |
||
586 | * debugfs node structure. This structure represents a debugfs file. |
||
587 | */ |
||
588 | struct drm_info_node { |
||
589 | struct list_head list; |
||
590 | struct drm_minor *minor; |
||
4065 | Serge | 591 | const struct drm_info_list *info_ent; |
1408 | serge | 592 | struct dentry *dent; |
593 | }; |
||
594 | |||
595 | /** |
||
596 | * DRM minor structure. This structure represents a drm minor number. |
||
597 | */ |
||
598 | struct drm_minor { |
||
599 | int index; /**< Minor device number */ |
||
600 | int type; /**< Control or render */ |
||
6082 | serge | 601 | struct device *kdev; /**< Linux device */ |
1408 | serge | 602 | struct drm_device *dev; |
603 | |||
5056 | serge | 604 | struct dentry *debugfs_root; |
1408 | serge | 605 | |
5056 | serge | 606 | struct list_head debugfs_list; |
607 | struct mutex debugfs_lock; /* Protects debugfs_list. */ |
||
1408 | serge | 608 | |
5056 | serge | 609 | /* currently active master for this node. Protected by master_mutex */ |
610 | struct drm_master *master; |
||
1964 | serge | 611 | }; |
1408 | serge | 612 | |
613 | |||
5270 | serge | 614 | struct drm_pending_vblank_event { |
615 | struct drm_pending_event base; |
||
6082 | serge | 616 | unsigned int pipe; |
5270 | serge | 617 | struct drm_event_vblank event; |
618 | }; |
||
1408 | serge | 619 | |
5270 | serge | 620 | struct drm_vblank_crtc { |
621 | struct drm_device *dev; /* pointer to the drm_device */ |
||
622 | wait_queue_head_t queue; /**< VBLANK wait queue */ |
||
623 | struct timer_list disable_timer; /* delayed disable timer */ |
||
6082 | serge | 624 | |
625 | /* vblank counter, protected by dev->vblank_time_lock for writes */ |
||
626 | u32 count; |
||
627 | /* vblank timestamps, protected by dev->vblank_time_lock for writes */ |
||
628 | struct timeval time[DRM_VBLANKTIME_RBSIZE]; |
||
629 | |||
5270 | serge | 630 | atomic_t refcount; /* number of users of vblank interruptsper crtc */ |
631 | u32 last; /* protected by dev->vbl_lock, used */ |
||
632 | /* for wraparound handling */ |
||
633 | u32 last_wait; /* Last vblank seqno waited per CRTC */ |
||
634 | unsigned int inmodeset; /* Display driver is setting mode */ |
||
6082 | serge | 635 | unsigned int pipe; /* crtc index */ |
636 | int framedur_ns; /* frame/field duration in ns */ |
||
637 | int linedur_ns; /* line duration in ns */ |
||
5270 | serge | 638 | bool enabled; /* so we don't call enable more than |
639 | once per disable */ |
||
640 | }; |
||
641 | |||
1408 | serge | 642 | /** |
643 | * DRM device structure. This structure represent a complete card that |
||
644 | * may contain multiple heads. |
||
645 | */ |
||
646 | struct drm_device { |
||
4559 | Serge | 647 | struct list_head legacy_dev_list;/**< list of devices per driver for stealth attach cleanup */ |
1408 | serge | 648 | int if_version; /**< Highest interface version set */ |
649 | |||
5270 | serge | 650 | /** \name Lifetime Management */ |
651 | /*@{ */ |
||
652 | struct kref ref; /**< Object ref-count */ |
||
5056 | serge | 653 | struct device *dev; /**< Device structure of bus-device */ |
654 | struct drm_driver *driver; /**< DRM driver managing the device */ |
||
655 | void *dev_private; /**< DRM driver private data */ |
||
6082 | serge | 656 | struct drm_minor *control; /**< Control node */ |
5056 | serge | 657 | struct drm_minor *primary; /**< Primary node */ |
6082 | serge | 658 | struct drm_minor *render; /**< Render node */ |
5056 | serge | 659 | atomic_t unplugged; /**< Flag whether dev is dead */ |
1408 | serge | 660 | /** \name Locks */ |
661 | /*@{ */ |
||
1630 | serge | 662 | struct mutex struct_mutex; /**< For others */ |
5056 | serge | 663 | struct mutex master_mutex; /**< For drm_minor::master and drm_file::is_master */ |
1408 | serge | 664 | /*@} */ |
665 | |||
666 | /** \name Usage Counters */ |
||
667 | /*@{ */ |
||
5056 | serge | 668 | int open_count; /**< Outstanding files open, protected by drm_global_mutex. */ |
669 | spinlock_t buf_lock; /**< For drm_device::buf_use and a few other things. */ |
||
1408 | serge | 670 | int buf_use; /**< Buffers in use -- cannot alloc */ |
6082 | serge | 671 | atomic_t buf_alloc; /**< Buffer allocation in progress */ |
1408 | serge | 672 | /*@} */ |
673 | |||
674 | struct list_head filelist; |
||
675 | |||
676 | /** \name Memory management */ |
||
677 | /*@{ */ |
||
678 | struct list_head maplist; /**< Linked list of regions */ |
||
679 | |||
680 | /** \name Context handle management */ |
||
681 | /*@{ */ |
||
682 | struct list_head ctxlist; /**< Linked list of context handles */ |
||
1630 | serge | 683 | struct mutex ctxlist_mutex; /**< For ctxlist */ |
1408 | serge | 684 | |
1964 | serge | 685 | struct idr ctx_idr; |
1408 | serge | 686 | |
687 | struct list_head vmalist; /**< List of vmas (for debugging) */ |
||
688 | |||
689 | /*@} */ |
||
690 | |||
3031 | serge | 691 | /** \name DMA support */ |
1408 | serge | 692 | /*@{ */ |
693 | // struct drm_device_dma *dma; /**< Optional pointer for DMA support */ |
||
694 | /*@} */ |
||
695 | |||
696 | /** \name Context support */ |
||
697 | /*@{ */ |
||
5056 | serge | 698 | |
1408 | serge | 699 | __volatile__ long context_flag; /**< Context swapping flag */ |
700 | int last_context; /**< Last current context */ |
||
701 | /*@} */ |
||
702 | |||
703 | /** \name VBLANK IRQ support */ |
||
704 | /*@{ */ |
||
6082 | serge | 705 | bool irq_enabled; |
706 | int irq; |
||
1408 | serge | 707 | |
708 | /* |
||
709 | * At load time, disabling the vblank interrupt won't be allowed since |
||
710 | * old clients may not call the modeset ioctl and therefore misbehave. |
||
711 | * Once the modeset ioctl *has* been called though, we can safely |
||
712 | * disable them when unused. |
||
713 | */ |
||
4559 | Serge | 714 | bool vblank_disable_allowed; |
1408 | serge | 715 | |
5270 | serge | 716 | /* |
717 | * If true, vblank interrupt will be disabled immediately when the |
||
718 | * refcount drops to zero, as opposed to via the vblank disable |
||
719 | * timer. |
||
720 | * This can be set to true it the hardware has a working vblank |
||
721 | * counter and the driver uses drm_vblank_on() and drm_vblank_off() |
||
722 | * appropriately. |
||
723 | */ |
||
724 | bool vblank_disable_immediate; |
||
725 | |||
5056 | serge | 726 | /* array of size num_crtcs */ |
727 | struct drm_vblank_crtc *vblank; |
||
1408 | serge | 728 | |
5056 | serge | 729 | spinlock_t vblank_time_lock; /**< Protects vblank count and time updates during vblank enable/disable */ |
730 | spinlock_t vbl_lock; |
||
731 | |||
1408 | serge | 732 | u32 max_vblank_count; /**< size of vblank counter register */ |
733 | |||
1964 | serge | 734 | /** |
735 | * List of events |
||
736 | */ |
||
737 | struct list_head vblank_event_list; |
||
738 | spinlock_t event_lock; |
||
739 | |||
1408 | serge | 740 | /*@} */ |
741 | |||
742 | // struct drm_agp_head *agp; /**< AGP data */ |
||
743 | |||
744 | struct pci_dev *pdev; /**< PCI device structure */ |
||
6659 | serge | 745 | #ifdef __alpha__ |
746 | struct pci_controller *hose; |
||
747 | #endif |
||
5056 | serge | 748 | |
1964 | serge | 749 | unsigned int num_crtcs; /**< Number of CRTCs on this device */ |
1408 | serge | 750 | |
5270 | serge | 751 | struct { |
752 | int context; |
||
753 | struct drm_hw_lock *lock; |
||
754 | } sigdata; |
||
1408 | serge | 755 | |
6082 | serge | 756 | struct drm_mode_config mode_config; /**< Current mode config */ |
1408 | serge | 757 | |
758 | /** \name GEM information */ |
||
759 | /*@{ */ |
||
4103 | Serge | 760 | struct mutex object_name_lock; |
1964 | serge | 761 | struct idr object_name_idr; |
4559 | Serge | 762 | struct drm_vma_offset_manager *vma_offset_manager; |
1408 | serge | 763 | /*@} */ |
1964 | serge | 764 | int switch_power_state; |
1408 | serge | 765 | }; |
766 | |||
1964 | serge | 767 | #define DRM_SWITCH_POWER_ON 0 |
768 | #define DRM_SWITCH_POWER_OFF 1 |
||
769 | #define DRM_SWITCH_POWER_CHANGING 2 |
||
4103 | Serge | 770 | #define DRM_SWITCH_POWER_DYNAMIC_OFF 3 |
1964 | serge | 771 | |
3482 | Serge | 772 | static __inline__ int drm_core_check_feature(struct drm_device *dev, |
773 | int feature) |
||
774 | { |
||
775 | return ((dev->driver->driver_features & feature) ? 1 : 0); |
||
776 | } |
||
1964 | serge | 777 | |
4065 | Serge | 778 | static inline void drm_device_set_unplugged(struct drm_device *dev) |
1408 | serge | 779 | { |
4065 | Serge | 780 | smp_wmb(); |
781 | atomic_set(&dev->unplugged, 1); |
||
1408 | serge | 782 | } |
783 | |||
4065 | Serge | 784 | static inline int drm_device_is_unplugged(struct drm_device *dev) |
1408 | serge | 785 | { |
4065 | Serge | 786 | int ret = atomic_read(&dev->unplugged); |
787 | smp_rmb(); |
||
788 | return ret; |
||
1408 | serge | 789 | } |
790 | |||
791 | |||
792 | /******************************************************************/ |
||
793 | /** \name Internal function definitions */ |
||
794 | /*@{*/ |
||
795 | |||
796 | /* Driver support (drm_drv.h) */ |
||
6082 | serge | 797 | extern int drm_ioctl_permit(u32 flags, struct drm_file *file_priv); |
1408 | serge | 798 | extern long drm_ioctl(struct file *filp, |
6082 | serge | 799 | unsigned int cmd, unsigned long arg); |
1408 | serge | 800 | extern long drm_compat_ioctl(struct file *filp, |
801 | unsigned int cmd, unsigned long arg); |
||
5056 | serge | 802 | extern bool drm_ioctl_flags(unsigned int nr, unsigned int *flags); |
1408 | serge | 803 | |
804 | /* Device support (drm_fops.h) */ |
||
805 | extern int drm_open(struct inode *inode, struct file *filp); |
||
806 | extern ssize_t drm_read(struct file *filp, char __user *buffer, |
||
807 | size_t count, loff_t *offset); |
||
808 | extern int drm_release(struct inode *inode, struct file *filp); |
||
6082 | serge | 809 | extern int drm_new_set_master(struct drm_device *dev, struct drm_file *fpriv); |
1408 | serge | 810 | |
811 | /* Mapping support (drm_vm.h) */ |
||
812 | extern unsigned int drm_poll(struct file *filp, struct poll_table_struct *wait); |
||
813 | |||
5270 | serge | 814 | /* Misc. IOCTL support (drm_ioctl.c) */ |
815 | int drm_noop(struct drm_device *dev, void *data, |
||
6082 | serge | 816 | struct drm_file *file_priv); |
817 | int drm_invalid_op(struct drm_device *dev, void *data, |
||
818 | struct drm_file *file_priv); |
||
1408 | serge | 819 | |
820 | /* Cache management (drm_cache.c) */ |
||
821 | void drm_clflush_pages(struct page *pages[], unsigned long num_pages); |
||
3031 | serge | 822 | void drm_clflush_sg(struct sg_table *st); |
5056 | serge | 823 | void drm_clflush_virt_range(void *addr, unsigned long length); |
1408 | serge | 824 | |
825 | /* |
||
826 | * These are exported to drivers so that they can implement fencing using |
||
827 | * DMA quiscent + idle. DMA quiescent usually requires the hardware lock. |
||
828 | */ |
||
829 | |||
830 | /* IRQ support (drm_irq.h) */ |
||
5056 | serge | 831 | extern int drm_irq_install(struct drm_device *dev, int irq); |
1408 | serge | 832 | extern int drm_irq_uninstall(struct drm_device *dev); |
833 | |||
6082 | serge | 834 | extern int drm_vblank_init(struct drm_device *dev, unsigned int num_crtcs); |
1408 | serge | 835 | extern int drm_wait_vblank(struct drm_device *dev, void *data, |
836 | struct drm_file *filp); |
||
6082 | serge | 837 | extern u32 drm_vblank_count(struct drm_device *dev, unsigned int pipe); |
838 | extern u32 drm_crtc_vblank_count(struct drm_crtc *crtc); |
||
839 | extern u32 drm_vblank_count_and_time(struct drm_device *dev, unsigned int pipe, |
||
1964 | serge | 840 | struct timeval *vblanktime); |
6082 | serge | 841 | extern u32 drm_crtc_vblank_count_and_time(struct drm_crtc *crtc, |
842 | struct timeval *vblanktime); |
||
843 | extern void drm_send_vblank_event(struct drm_device *dev, unsigned int pipe, |
||
844 | struct drm_pending_vblank_event *e); |
||
845 | extern void drm_crtc_send_vblank_event(struct drm_crtc *crtc, |
||
846 | struct drm_pending_vblank_event *e); |
||
6102 | serge | 847 | extern void drm_arm_vblank_event(struct drm_device *dev, unsigned int pipe, |
848 | struct drm_pending_vblank_event *e); |
||
849 | extern void drm_crtc_arm_vblank_event(struct drm_crtc *crtc, |
||
850 | struct drm_pending_vblank_event *e); |
||
6082 | serge | 851 | extern bool drm_handle_vblank(struct drm_device *dev, unsigned int pipe); |
852 | extern bool drm_crtc_handle_vblank(struct drm_crtc *crtc); |
||
853 | extern int drm_vblank_get(struct drm_device *dev, unsigned int pipe); |
||
854 | extern void drm_vblank_put(struct drm_device *dev, unsigned int pipe); |
||
5056 | serge | 855 | extern int drm_crtc_vblank_get(struct drm_crtc *crtc); |
856 | extern void drm_crtc_vblank_put(struct drm_crtc *crtc); |
||
6082 | serge | 857 | extern void drm_wait_one_vblank(struct drm_device *dev, unsigned int pipe); |
5270 | serge | 858 | extern void drm_crtc_wait_one_vblank(struct drm_crtc *crtc); |
6082 | serge | 859 | extern void drm_vblank_off(struct drm_device *dev, unsigned int pipe); |
860 | extern void drm_vblank_on(struct drm_device *dev, unsigned int pipe); |
||
5056 | serge | 861 | extern void drm_crtc_vblank_off(struct drm_crtc *crtc); |
6082 | serge | 862 | extern void drm_crtc_vblank_reset(struct drm_crtc *crtc); |
5056 | serge | 863 | extern void drm_crtc_vblank_on(struct drm_crtc *crtc); |
1408 | serge | 864 | extern void drm_vblank_cleanup(struct drm_device *dev); |
6082 | serge | 865 | extern u32 drm_vblank_no_hw_counter(struct drm_device *dev, unsigned int pipe); |
5056 | serge | 866 | |
1964 | serge | 867 | extern int drm_calc_vbltimestamp_from_scanoutpos(struct drm_device *dev, |
6082 | serge | 868 | unsigned int pipe, int *max_error, |
1964 | serge | 869 | struct timeval *vblank_time, |
870 | unsigned flags, |
||
4559 | Serge | 871 | const struct drm_display_mode *mode); |
872 | extern void drm_calc_timestamping_constants(struct drm_crtc *crtc, |
||
873 | const struct drm_display_mode *mode); |
||
1964 | serge | 874 | |
5270 | serge | 875 | /** |
876 | * drm_crtc_vblank_waitqueue - get vblank waitqueue for the CRTC |
||
877 | * @crtc: which CRTC's vblank waitqueue to retrieve |
||
878 | * |
||
879 | * This function returns a pointer to the vblank waitqueue for the CRTC. |
||
880 | * Drivers can use this to implement vblank waits using wait_event() & co. |
||
881 | */ |
||
882 | static inline wait_queue_head_t *drm_crtc_vblank_waitqueue(struct drm_crtc *crtc) |
||
883 | { |
||
884 | return &crtc->dev->vblank[drm_crtc_index(crtc)].queue; |
||
885 | } |
||
1964 | serge | 886 | |
1408 | serge | 887 | /* Modesetting support */ |
6082 | serge | 888 | extern void drm_vblank_pre_modeset(struct drm_device *dev, unsigned int pipe); |
889 | extern void drm_vblank_post_modeset(struct drm_device *dev, unsigned int pipe); |
||
1408 | serge | 890 | |
891 | /* Stub support (drm_stub.h) */ |
||
892 | extern struct drm_master *drm_master_get(struct drm_master *master); |
||
893 | extern void drm_master_put(struct drm_master **master); |
||
1964 | serge | 894 | |
1408 | serge | 895 | extern void drm_put_dev(struct drm_device *dev); |
3031 | serge | 896 | extern void drm_unplug_dev(struct drm_device *dev); |
1408 | serge | 897 | extern unsigned int drm_debug; |
6082 | serge | 898 | extern bool drm_atomic; |
1408 | serge | 899 | |
900 | /* Debugfs support */ |
||
901 | #if defined(CONFIG_DEBUG_FS) |
||
4559 | Serge | 902 | extern int drm_debugfs_create_files(const struct drm_info_list *files, |
903 | int count, struct dentry *root, |
||
6082 | serge | 904 | struct drm_minor *minor); |
4559 | Serge | 905 | extern int drm_debugfs_remove_files(const struct drm_info_list *files, |
906 | int count, struct drm_minor *minor); |
||
907 | #else |
||
908 | static inline int drm_debugfs_create_files(const struct drm_info_list *files, |
||
909 | int count, struct dentry *root, |
||
910 | struct drm_minor *minor) |
||
911 | { |
||
912 | return 0; |
||
913 | } |
||
914 | |||
915 | static inline int drm_debugfs_remove_files(const struct drm_info_list *files, |
||
916 | int count, struct drm_minor *minor) |
||
917 | { |
||
918 | return 0; |
||
919 | } |
||
1408 | serge | 920 | #endif |
921 | |||
5270 | serge | 922 | extern struct dma_buf *drm_gem_prime_export(struct drm_device *dev, |
6936 | serge | 923 | struct drm_gem_object *obj, int flags); |
5270 | serge | 924 | extern int drm_gem_prime_handle_to_fd(struct drm_device *dev, |
925 | struct drm_file *file_priv, uint32_t handle, uint32_t flags, |
||
926 | int *prime_fd); |
||
927 | extern struct drm_gem_object *drm_gem_prime_import(struct drm_device *dev, |
||
928 | struct dma_buf *dma_buf); |
||
929 | extern int drm_gem_prime_fd_to_handle(struct drm_device *dev, |
||
930 | struct drm_file *file_priv, int prime_fd, uint32_t *handle); |
||
931 | extern void drm_gem_dmabuf_release(struct dma_buf *dma_buf); |
||
1408 | serge | 932 | |
5270 | serge | 933 | extern int drm_prime_sg_to_page_addr_arrays(struct sg_table *sgt, struct page **pages, |
934 | dma_addr_t *addrs, int max_pages); |
||
935 | extern struct sg_table *drm_prime_pages_to_sg(struct page **pages, unsigned int nr_pages); |
||
936 | extern void drm_prime_gem_destroy(struct drm_gem_object *obj, struct sg_table *sg); |
||
1408 | serge | 937 | |
938 | |||
5270 | serge | 939 | extern struct drm_dma_handle *drm_pci_alloc(struct drm_device *dev, size_t size, |
6082 | serge | 940 | size_t align); |
5270 | serge | 941 | extern void drm_pci_free(struct drm_device *dev, struct drm_dma_handle * dmah); |
1408 | serge | 942 | |
943 | /* sysfs support (drm_sysfs.c) */ |
||
944 | extern void drm_sysfs_hotplug_event(struct drm_device *dev); |
||
2967 | Serge | 945 | |
1408 | serge | 946 | |
5178 | serge | 947 | struct drm_device *drm_dev_alloc(struct drm_driver *driver, |
948 | struct device *parent); |
||
949 | void drm_dev_ref(struct drm_device *dev); |
||
950 | void drm_dev_unref(struct drm_device *dev); |
||
5270 | serge | 951 | int drm_dev_register(struct drm_device *dev, unsigned long flags); |
952 | void drm_dev_unregister(struct drm_device *dev); |
||
6936 | serge | 953 | int drm_dev_set_unique(struct drm_device *dev, const char *name); |
5178 | serge | 954 | |
5270 | serge | 955 | struct drm_minor *drm_minor_acquire(unsigned int minor_id); |
956 | void drm_minor_release(struct drm_minor *minor); |
||
957 | |||
4103 | Serge | 958 | /*@}*/ |
3031 | serge | 959 | |
5178 | serge | 960 | /* PCI section */ |
961 | static __inline__ int drm_pci_device_is_agp(struct drm_device *dev) |
||
962 | { |
||
1408 | serge | 963 | |
5178 | serge | 964 | return pci_find_capability(dev->pdev, PCI_CAP_ID_AGP); |
965 | } |
||
966 | void drm_pci_agp_destroy(struct drm_device *dev); |
||
967 | |||
5056 | serge | 968 | #if 0 |
969 | extern int drm_pci_init(struct drm_driver *driver, struct pci_driver *pdriver); |
||
970 | extern void drm_pci_exit(struct drm_driver *driver, struct pci_driver *pdriver); |
||
4103 | Serge | 971 | extern int drm_get_pci_dev(struct pci_dev *pdev, |
972 | const struct pci_device_id *ent, |
||
973 | struct drm_driver *driver); |
||
6936 | serge | 974 | static inline int drm_pci_set_busid(struct drm_device *dev, |
975 | struct drm_master *master) |
||
976 | { |
||
977 | return -ENOSYS; |
||
978 | } |
||
5056 | serge | 979 | #endif |
1408 | serge | 980 | |
3031 | serge | 981 | #define DRM_PCIE_SPEED_25 1 |
982 | #define DRM_PCIE_SPEED_50 2 |
||
983 | #define DRM_PCIE_SPEED_80 4 |
||
1408 | serge | 984 | |
3031 | serge | 985 | extern int drm_pcie_get_speed_cap_mask(struct drm_device *dev, u32 *speed_mask); |
6936 | serge | 986 | extern int drm_pcie_get_max_link_width(struct drm_device *dev, u32 *mlw); |
3031 | serge | 987 | |
6936 | serge | 988 | /* platform section */ |
989 | extern int drm_platform_init(struct drm_driver *driver, struct platform_device *platform_device); |
||
990 | extern int drm_platform_set_busid(struct drm_device *d, struct drm_master *m); |
||
991 | |||
6102 | serge | 992 | /* returns true if currently okay to sleep */ |
993 | static __inline__ bool drm_can_sleep(void) |
||
994 | { |
||
995 | return true; |
||
996 | } |
||
2967 | Serge | 997 | |
6936 | serge | 998 | /* helper for handling conditionals in various for_each macros */ |
999 | #define for_each_if(condition) if (!(condition)) {} else |
||
1000 | |||
2967 | Serge | 1001 | static __inline__ int drm_device_is_pcie(struct drm_device *dev) |
1002 | { |
||
1003 | return pci_find_capability(dev->pdev, PCI_CAP_ID_EXP); |
||
1004 | } |
||
3031 | serge | 1005 | |
4559 | Serge | 1006 | #define LFB_SIZE 0x1000000 |
4103 | Serge | 1007 | extern struct drm_device *main_device; |
1008 | extern struct drm_file *drm_file_handlers[256]; |
||
3391 | Serge | 1009 | |
1408 | serge | 1010 | #endif>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>><>><>><>><>><>>>>><> |