Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
David Herrmann | d7d2c48 | 2014-08-29 12:12:40 +0200 | [diff] [blame] | 2 | * Internal Header for the Direct Rendering Manager |
| 3 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4 | * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. |
| 5 | * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. |
Jordan Crouse | dcdb167 | 2010-05-27 13:40:25 -0600 | [diff] [blame] | 6 | * Copyright (c) 2009-2010, Code Aurora Forum. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7 | * All rights reserved. |
| 8 | * |
David Herrmann | d7d2c48 | 2014-08-29 12:12:40 +0200 | [diff] [blame] | 9 | * Author: Rickard E. (Rik) Faith <faith@valinux.com> |
| 10 | * Author: Gareth Hughes <gareth@valinux.com> |
| 11 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 12 | * Permission is hereby granted, free of charge, to any person obtaining a |
| 13 | * copy of this software and associated documentation files (the "Software"), |
| 14 | * to deal in the Software without restriction, including without limitation |
| 15 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| 16 | * and/or sell copies of the Software, and to permit persons to whom the |
| 17 | * Software is furnished to do so, subject to the following conditions: |
| 18 | * |
| 19 | * The above copyright notice and this permission notice (including the next |
| 20 | * paragraph) shall be included in all copies or substantial portions of the |
| 21 | * Software. |
| 22 | * |
| 23 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 24 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 25 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 26 | * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR |
| 27 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
| 28 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
| 29 | * OTHER DEALINGS IN THE SOFTWARE. |
| 30 | */ |
| 31 | |
| 32 | #ifndef _DRM_P_H_ |
| 33 | #define _DRM_P_H_ |
| 34 | |
David Herrmann | 9699390 | 2014-08-29 12:12:37 +0200 | [diff] [blame] | 35 | #include <linux/agp_backend.h> |
| 36 | #include <linux/cdev.h> |
| 37 | #include <linux/dma-mapping.h> |
| 38 | #include <linux/file.h> |
| 39 | #include <linux/fs.h> |
| 40 | #include <linux/highmem.h> |
| 41 | #include <linux/idr.h> |
| 42 | #include <linux/init.h> |
| 43 | #include <linux/io.h> |
| 44 | #include <linux/jiffies.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 45 | #include <linux/kernel.h> |
David Herrmann | 099d1c2 | 2014-01-29 10:21:36 +0100 | [diff] [blame] | 46 | #include <linux/kref.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 47 | #include <linux/miscdevice.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 48 | #include <linux/mm.h> |
Dave Airlie | 30e2fb1 | 2006-02-02 19:37:46 +1100 | [diff] [blame] | 49 | #include <linux/mutex.h> |
David Herrmann | 9699390 | 2014-08-29 12:12:37 +0200 | [diff] [blame] | 50 | #include <linux/pci.h> |
| 51 | #include <linux/platform_device.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 52 | #include <linux/poll.h> |
David Herrmann | 9699390 | 2014-08-29 12:12:37 +0200 | [diff] [blame] | 53 | #include <linux/ratelimit.h> |
| 54 | #include <linux/sched.h> |
| 55 | #include <linux/slab.h> |
| 56 | #include <linux/types.h> |
David Herrmann | d6db656 | 2014-08-29 12:12:35 +0200 | [diff] [blame] | 57 | #include <linux/vmalloc.h> |
David Herrmann | 9699390 | 2014-08-29 12:12:37 +0200 | [diff] [blame] | 58 | #include <linux/workqueue.h> |
| 59 | |
| 60 | #include <asm/mman.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 61 | #include <asm/pgalloc.h> |
David Herrmann | 9699390 | 2014-08-29 12:12:37 +0200 | [diff] [blame] | 62 | #include <asm/uaccess.h> |
| 63 | |
David Herrmann | d7d2c48 | 2014-08-29 12:12:40 +0200 | [diff] [blame] | 64 | #include <uapi/drm/drm.h> |
| 65 | #include <uapi/drm/drm_mode.h> |
| 66 | |
| 67 | #include <drm/drm_agpsupport.h> |
| 68 | #include <drm/drm_crtc.h> |
| 69 | #include <drm/drm_global.h> |
David Herrmann | 9699390 | 2014-08-29 12:12:37 +0200 | [diff] [blame] | 70 | #include <drm/drm_hashtab.h> |
David Herrmann | d7d2c48 | 2014-08-29 12:12:40 +0200 | [diff] [blame] | 71 | #include <drm/drm_mem_util.h> |
David Herrmann | 9699390 | 2014-08-29 12:12:37 +0200 | [diff] [blame] | 72 | #include <drm/drm_mm.h> |
| 73 | #include <drm/drm_os_linux.h> |
David Howells | 19218e4 | 2012-10-02 18:01:03 +0100 | [diff] [blame] | 74 | #include <drm/drm_sarea.h> |
David Herrmann | 0de2397 | 2013-07-24 21:07:52 +0200 | [diff] [blame] | 75 | #include <drm/drm_vma_manager.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 76 | |
Paul Gortmaker | de47725 | 2011-05-26 13:46:22 -0400 | [diff] [blame] | 77 | struct module; |
| 78 | |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 79 | struct drm_file; |
| 80 | struct drm_device; |
David Herrmann | cc5ea59 | 2014-08-29 12:12:32 +0200 | [diff] [blame] | 81 | struct drm_agp_head; |
Daniel Vetter | ba8286f | 2014-09-11 07:43:25 +0200 | [diff] [blame] | 82 | struct drm_local_map; |
| 83 | struct drm_device_dma; |
| 84 | struct drm_dma_handle; |
Daniel Vetter | d9fc941 | 2014-09-23 15:46:53 +0200 | [diff] [blame] | 85 | struct drm_gem_object; |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 86 | |
Steffen Trumtrar | edb37a9 | 2012-10-28 18:28:06 +0100 | [diff] [blame] | 87 | struct device_node; |
Steffen Trumtrar | ebc64e4 | 2012-11-14 11:22:52 +0100 | [diff] [blame] | 88 | struct videomode; |
Maarten Lankhorst | 3aac450 | 2014-07-01 12:57:26 +0200 | [diff] [blame] | 89 | struct reservation_object; |
Maarten Lankhorst | b5e9c1a | 2014-01-09 11:03:14 +0100 | [diff] [blame] | 90 | struct dma_buf_attachment; |
Steffen Trumtrar | ebc64e4 | 2012-11-14 11:22:52 +0100 | [diff] [blame] | 91 | |
Lespiau, Damien | 1414b76 | 2014-03-24 15:53:08 +0000 | [diff] [blame] | 92 | /* |
| 93 | * 4 debug categories are defined: |
| 94 | * |
| 95 | * CORE: Used in the generic drm code: drm_ioctl.c, drm_mm.c, drm_memory.c, ... |
| 96 | * This is the category used by the DRM_DEBUG() macro. |
| 97 | * |
| 98 | * DRIVER: Used in the vendor specific part of the driver: i915, radeon, ... |
| 99 | * This is the category used by the DRM_DEBUG_DRIVER() macro. |
| 100 | * |
| 101 | * KMS: used in the modesetting code. |
| 102 | * This is the category used by the DRM_DEBUG_KMS() macro. |
| 103 | * |
| 104 | * PRIME: used in the prime code. |
| 105 | * This is the category used by the DRM_DEBUG_PRIME() macro. |
| 106 | * |
Daniel Vetter | 17a38d9 | 2015-02-22 12:24:16 +0100 | [diff] [blame] | 107 | * ATOMIC: used in the atomic code. |
| 108 | * This is the category used by the DRM_DEBUG_ATOMIC() macro. |
| 109 | * |
Ville Syrjälä | 235fabe | 2015-10-09 22:57:37 +0300 | [diff] [blame] | 110 | * VBL: used for verbose debug message in the vblank code |
| 111 | * This is the category used by the DRM_DEBUG_VBL() macro. |
| 112 | * |
Lespiau, Damien | 1414b76 | 2014-03-24 15:53:08 +0000 | [diff] [blame] | 113 | * Enabling verbose debug messages is done through the drm.debug parameter, |
| 114 | * each category being enabled by a bit. |
| 115 | * |
| 116 | * drm.debug=0x1 will enable CORE messages |
| 117 | * drm.debug=0x2 will enable DRIVER messages |
| 118 | * drm.debug=0x3 will enable CORE and DRIVER messages |
| 119 | * ... |
Ville Syrjälä | 235fabe | 2015-10-09 22:57:37 +0300 | [diff] [blame] | 120 | * drm.debug=0x3f will enable all messages |
Lespiau, Damien | 1414b76 | 2014-03-24 15:53:08 +0000 | [diff] [blame] | 121 | * |
| 122 | * An interesting feature is that it's possible to enable verbose logging at |
| 123 | * run-time by echoing the debug value in its sysfs node: |
| 124 | * # echo 0xf > /sys/module/drm/parameters/debug |
| 125 | */ |
yakui_zhao | 4fefcb2 | 2009-06-02 14:09:47 +0800 | [diff] [blame] | 126 | #define DRM_UT_CORE 0x01 |
| 127 | #define DRM_UT_DRIVER 0x02 |
| 128 | #define DRM_UT_KMS 0x04 |
Dave Airlie | 3248877 | 2011-11-25 15:21:02 +0000 | [diff] [blame] | 129 | #define DRM_UT_PRIME 0x08 |
Daniel Vetter | 17a38d9 | 2015-02-22 12:24:16 +0100 | [diff] [blame] | 130 | #define DRM_UT_ATOMIC 0x10 |
Ville Syrjälä | 235fabe | 2015-10-09 22:57:37 +0300 | [diff] [blame] | 131 | #define DRM_UT_VBL 0x20 |
yakui_zhao | 4fefcb2 | 2009-06-02 14:09:47 +0800 | [diff] [blame] | 132 | |
Lespiau, Damien | 1287aa9 | 2014-03-24 15:53:17 +0000 | [diff] [blame] | 133 | extern __printf(2, 3) |
| 134 | void drm_ut_debug_printk(const char *function_name, |
Joe Perches | b9075fa | 2011-10-31 17:11:33 -0700 | [diff] [blame] | 135 | const char *format, ...); |
Joe Perches | a1f1a79 | 2014-10-11 22:08:57 -0700 | [diff] [blame] | 136 | extern __printf(1, 2) |
| 137 | void drm_err(const char *format, ...); |
Joe Perches | 5ad3d88 | 2011-04-17 20:35:51 -0700 | [diff] [blame] | 138 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 139 | /***********************************************************************/ |
| 140 | /** \name DRM template customization defaults */ |
| 141 | /*@{*/ |
| 142 | |
| 143 | /* driver capabilities and requirements mask */ |
Peter Antoine | 0e97598 | 2015-06-23 08:18:49 +0100 | [diff] [blame] | 144 | #define DRIVER_USE_AGP 0x1 |
| 145 | #define DRIVER_PCI_DMA 0x8 |
| 146 | #define DRIVER_SG 0x10 |
| 147 | #define DRIVER_HAVE_DMA 0x20 |
| 148 | #define DRIVER_HAVE_IRQ 0x40 |
| 149 | #define DRIVER_IRQ_SHARED 0x80 |
| 150 | #define DRIVER_GEM 0x1000 |
| 151 | #define DRIVER_MODESET 0x2000 |
| 152 | #define DRIVER_PRIME 0x4000 |
| 153 | #define DRIVER_RENDER 0x8000 |
| 154 | #define DRIVER_ATOMIC 0x10000 |
| 155 | #define DRIVER_KMS_LEGACY_CONTEXT 0x20000 |
Dave Airlie | 8410ea3 | 2010-12-15 03:16:38 +1000 | [diff] [blame] | 156 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 157 | /***********************************************************************/ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 158 | /** \name Macros to make printk easier */ |
| 159 | /*@{*/ |
| 160 | |
| 161 | /** |
| 162 | * Error output. |
| 163 | * |
| 164 | * \param fmt printf() like format string. |
| 165 | * \param arg arguments |
| 166 | */ |
Joe Perches | 5ad3d88 | 2011-04-17 20:35:51 -0700 | [diff] [blame] | 167 | #define DRM_ERROR(fmt, ...) \ |
Joe Perches | a1f1a79 | 2014-10-11 22:08:57 -0700 | [diff] [blame] | 168 | drm_err(fmt, ##__VA_ARGS__) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 169 | |
Rob Clark | 5d13d42 | 2013-11-21 14:29:51 -0500 | [diff] [blame] | 170 | /** |
| 171 | * Rate limited error output. Like DRM_ERROR() but won't flood the log. |
| 172 | * |
| 173 | * \param fmt printf() like format string. |
| 174 | * \param arg arguments |
| 175 | */ |
| 176 | #define DRM_ERROR_RATELIMITED(fmt, ...) \ |
| 177 | ({ \ |
| 178 | static DEFINE_RATELIMIT_STATE(_rs, \ |
| 179 | DEFAULT_RATELIMIT_INTERVAL, \ |
| 180 | DEFAULT_RATELIMIT_BURST); \ |
| 181 | \ |
| 182 | if (__ratelimit(&_rs)) \ |
Joe Perches | a1f1a79 | 2014-10-11 22:08:57 -0700 | [diff] [blame] | 183 | drm_err(fmt, ##__VA_ARGS__); \ |
Rob Clark | 5d13d42 | 2013-11-21 14:29:51 -0500 | [diff] [blame] | 184 | }) |
| 185 | |
Joe Perches | 5ad3d88 | 2011-04-17 20:35:51 -0700 | [diff] [blame] | 186 | #define DRM_INFO(fmt, ...) \ |
| 187 | printk(KERN_INFO "[" DRM_NAME "] " fmt, ##__VA_ARGS__) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 188 | |
Jani Nikula | 48b8f63 | 2014-01-31 15:49:07 +0200 | [diff] [blame] | 189 | #define DRM_INFO_ONCE(fmt, ...) \ |
| 190 | printk_once(KERN_INFO "[" DRM_NAME "] " fmt, ##__VA_ARGS__) |
| 191 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 192 | /** |
| 193 | * Debug output. |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 194 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 195 | * \param fmt printf() like format string. |
| 196 | * \param arg arguments |
| 197 | */ |
yakui_zhao | 4fefcb2 | 2009-06-02 14:09:47 +0800 | [diff] [blame] | 198 | #define DRM_DEBUG(fmt, args...) \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 199 | do { \ |
Lespiau, Damien | a73d4e9 | 2014-03-24 15:53:15 +0000 | [diff] [blame] | 200 | if (unlikely(drm_debug & DRM_UT_CORE)) \ |
Lespiau, Damien | 1287aa9 | 2014-03-24 15:53:17 +0000 | [diff] [blame] | 201 | drm_ut_debug_printk(__func__, fmt, ##args); \ |
yakui_zhao | 4fefcb2 | 2009-06-02 14:09:47 +0800 | [diff] [blame] | 202 | } while (0) |
| 203 | |
Zhao Yakui | 8a4c47f | 2009-07-20 13:48:04 +0800 | [diff] [blame] | 204 | #define DRM_DEBUG_DRIVER(fmt, args...) \ |
yakui_zhao | 4fefcb2 | 2009-06-02 14:09:47 +0800 | [diff] [blame] | 205 | do { \ |
Lespiau, Damien | a73d4e9 | 2014-03-24 15:53:15 +0000 | [diff] [blame] | 206 | if (unlikely(drm_debug & DRM_UT_DRIVER)) \ |
Lespiau, Damien | 1287aa9 | 2014-03-24 15:53:17 +0000 | [diff] [blame] | 207 | drm_ut_debug_printk(__func__, fmt, ##args); \ |
yakui_zhao | 4fefcb2 | 2009-06-02 14:09:47 +0800 | [diff] [blame] | 208 | } while (0) |
Lespiau, Damien | a73d4e9 | 2014-03-24 15:53:15 +0000 | [diff] [blame] | 209 | #define DRM_DEBUG_KMS(fmt, args...) \ |
yakui_zhao | 4fefcb2 | 2009-06-02 14:09:47 +0800 | [diff] [blame] | 210 | do { \ |
Lespiau, Damien | a73d4e9 | 2014-03-24 15:53:15 +0000 | [diff] [blame] | 211 | if (unlikely(drm_debug & DRM_UT_KMS)) \ |
Lespiau, Damien | 1287aa9 | 2014-03-24 15:53:17 +0000 | [diff] [blame] | 212 | drm_ut_debug_printk(__func__, fmt, ##args); \ |
yakui_zhao | 4fefcb2 | 2009-06-02 14:09:47 +0800 | [diff] [blame] | 213 | } while (0) |
Dave Airlie | 3248877 | 2011-11-25 15:21:02 +0000 | [diff] [blame] | 214 | #define DRM_DEBUG_PRIME(fmt, args...) \ |
| 215 | do { \ |
Lespiau, Damien | a73d4e9 | 2014-03-24 15:53:15 +0000 | [diff] [blame] | 216 | if (unlikely(drm_debug & DRM_UT_PRIME)) \ |
Lespiau, Damien | 1287aa9 | 2014-03-24 15:53:17 +0000 | [diff] [blame] | 217 | drm_ut_debug_printk(__func__, fmt, ##args); \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 218 | } while (0) |
Daniel Vetter | 17a38d9 | 2015-02-22 12:24:16 +0100 | [diff] [blame] | 219 | #define DRM_DEBUG_ATOMIC(fmt, args...) \ |
| 220 | do { \ |
| 221 | if (unlikely(drm_debug & DRM_UT_ATOMIC)) \ |
| 222 | drm_ut_debug_printk(__func__, fmt, ##args); \ |
| 223 | } while (0) |
Ville Syrjälä | 235fabe | 2015-10-09 22:57:37 +0300 | [diff] [blame] | 224 | #define DRM_DEBUG_VBL(fmt, args...) \ |
| 225 | do { \ |
| 226 | if (unlikely(drm_debug & DRM_UT_VBL)) \ |
| 227 | drm_ut_debug_printk(__func__, fmt, ##args); \ |
| 228 | } while (0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 229 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 230 | /*@}*/ |
| 231 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 232 | /***********************************************************************/ |
| 233 | /** \name Internal types and structures */ |
| 234 | /*@{*/ |
| 235 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 236 | #define DRM_IF_VERSION(maj, min) (maj << 16 | min) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 237 | |
| 238 | /** |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 239 | * Ioctl function type. |
| 240 | * |
| 241 | * \param inode device inode. |
Eric Anholt | 6c340ea | 2007-08-25 20:23:09 +1000 | [diff] [blame] | 242 | * \param file_priv DRM file private pointer. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 243 | * \param cmd command. |
| 244 | * \param arg argument. |
| 245 | */ |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 246 | typedef int drm_ioctl_t(struct drm_device *dev, void *data, |
| 247 | struct drm_file *file_priv); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 248 | |
Dave Airlie | 9a18664 | 2005-06-23 21:29:18 +1000 | [diff] [blame] | 249 | typedef int drm_ioctl_compat_t(struct file *filp, unsigned int cmd, |
| 250 | unsigned long arg); |
| 251 | |
Kristian Høgsberg | 1a95916 | 2009-12-02 12:13:48 -0500 | [diff] [blame] | 252 | #define DRM_IOCTL_NR(n) _IOC_NR(n) |
| 253 | #define DRM_MAJOR 226 |
| 254 | |
Dave Airlie | a7a2cc3 | 2006-01-02 13:54:04 +1100 | [diff] [blame] | 255 | #define DRM_AUTH 0x1 |
| 256 | #define DRM_MASTER 0x2 |
| 257 | #define DRM_ROOT_ONLY 0x4 |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 258 | #define DRM_CONTROL_ALLOW 0x8 |
Arnd Bergmann | ed8b670 | 2009-12-16 22:17:09 +0000 | [diff] [blame] | 259 | #define DRM_UNLOCKED 0x10 |
David Herrmann | 1793126 | 2013-08-25 18:29:00 +0200 | [diff] [blame] | 260 | #define DRM_RENDER_ALLOW 0x20 |
Dave Airlie | a7a2cc3 | 2006-01-02 13:54:04 +1100 | [diff] [blame] | 261 | |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 262 | struct drm_ioctl_desc { |
| 263 | unsigned int cmd; |
Dave Airlie | a7a2cc3 | 2006-01-02 13:54:04 +1100 | [diff] [blame] | 264 | int flags; |
Richard Kennedy | c972d75 | 2009-03-18 17:26:44 +0000 | [diff] [blame] | 265 | drm_ioctl_t *func; |
Chris Cummins | b9434d0 | 2013-05-09 14:20:40 +0100 | [diff] [blame] | 266 | const char *name; |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 267 | }; |
| 268 | |
| 269 | /** |
| 270 | * Creates a driver or general drm_ioctl_desc array entry for the given |
| 271 | * ioctl, for use by drm_ioctl(). |
| 272 | */ |
Dave Airlie | 1b2f148 | 2010-08-14 20:20:34 +1000 | [diff] [blame] | 273 | |
Emil Velikov | 066626d | 2015-03-30 17:10:36 +0000 | [diff] [blame] | 274 | #define DRM_IOCTL_DEF_DRV(ioctl, _func, _flags) \ |
| 275 | [DRM_IOCTL_NR(DRM_IOCTL_##ioctl) - DRM_COMMAND_BASE] = { \ |
| 276 | .cmd = DRM_IOCTL_##ioctl, \ |
| 277 | .func = _func, \ |
| 278 | .flags = _flags, \ |
| 279 | .name = #ioctl \ |
| 280 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 281 | |
Kristian Høgsberg | c9a9c5e | 2009-09-12 04:33:34 +1000 | [diff] [blame] | 282 | /* Event queued up for userspace to read */ |
| 283 | struct drm_pending_event { |
| 284 | struct drm_event *event; |
| 285 | struct list_head link; |
| 286 | struct drm_file *file_priv; |
Jesse Barnes | b9c2c9a | 2010-07-01 16:48:09 -0700 | [diff] [blame] | 287 | pid_t pid; /* pid of requester, no guarantee it's valid by the time |
| 288 | we deliver the event, for tracing only */ |
Kristian Høgsberg | c9a9c5e | 2009-09-12 04:33:34 +1000 | [diff] [blame] | 289 | void (*destroy)(struct drm_pending_event *event); |
| 290 | }; |
| 291 | |
Dave Airlie | 3248877 | 2011-11-25 15:21:02 +0000 | [diff] [blame] | 292 | /* initial implementaton using a linked list - todo hashtab */ |
| 293 | struct drm_prime_file_private { |
| 294 | struct list_head head; |
| 295 | struct mutex lock; |
| 296 | }; |
| 297 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 298 | /** File private data */ |
Dave Airlie | 84b1fd1 | 2007-07-11 15:53:27 +1000 | [diff] [blame] | 299 | struct drm_file { |
Chris Wilson | 39868bd | 2013-10-29 08:55:58 +0000 | [diff] [blame] | 300 | unsigned authenticated :1; |
Thomas Hellstrom | c996fd0 | 2014-02-25 19:57:44 +0100 | [diff] [blame] | 301 | /* Whether we're master for a minor. Protected by master_mutex */ |
| 302 | unsigned is_master :1; |
Chris Wilson | 39868bd | 2013-10-29 08:55:58 +0000 | [diff] [blame] | 303 | /* true when the client has asked us to expose stereo 3D mode flags */ |
| 304 | unsigned stereo_allowed :1; |
Matt Roper | 681e7ec | 2014-04-01 15:22:42 -0700 | [diff] [blame] | 305 | /* |
| 306 | * true if client understands CRTC primary planes and cursor planes |
| 307 | * in the plane list |
| 308 | */ |
| 309 | unsigned universal_planes:1; |
Rob Clark | 88a48e2 | 2014-12-18 16:01:50 -0500 | [diff] [blame] | 310 | /* true if client understands atomic properties */ |
| 311 | unsigned atomic:1; |
Thomas Hellstrom | a0af2e5 | 2015-12-02 09:24:46 -0800 | [diff] [blame] | 312 | /* |
| 313 | * This client is allowed to gain master privileges for @master. |
| 314 | * Protected by struct drm_device::master_mutex. |
| 315 | */ |
| 316 | unsigned allowed_master:1; |
Chris Wilson | 39868bd | 2013-10-29 08:55:58 +0000 | [diff] [blame] | 317 | |
Eric W. Biederman | 5fce5e0 | 2012-02-07 16:47:26 -0800 | [diff] [blame] | 318 | struct pid *pid; |
| 319 | kuid_t uid; |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 320 | drm_magic_t magic; |
Dave Airlie | bd1b331 | 2007-05-26 05:01:51 +1000 | [diff] [blame] | 321 | struct list_head lhead; |
Dave Airlie | 2c14f28 | 2008-04-21 16:47:32 +1000 | [diff] [blame] | 322 | struct drm_minor *minor; |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 323 | unsigned long lock_count; |
Dave Airlie | 7c1c287 | 2008-11-28 14:22:24 +1000 | [diff] [blame] | 324 | |
Eric Anholt | 673a394 | 2008-07-30 12:06:12 -0700 | [diff] [blame] | 325 | /** Mapping of mm object handles to object pointers. */ |
| 326 | struct idr object_idr; |
| 327 | /** Lock for synchronization of access to object_idr. */ |
| 328 | spinlock_t table_lock; |
Dave Airlie | 7c1c287 | 2008-11-28 14:22:24 +1000 | [diff] [blame] | 329 | |
Eric Anholt | 6c340ea | 2007-08-25 20:23:09 +1000 | [diff] [blame] | 330 | struct file *filp; |
Dave Airlie | 8562b3f | 2007-11-05 12:37:41 +1000 | [diff] [blame] | 331 | void *driver_priv; |
Dave Airlie | 7c1c287 | 2008-11-28 14:22:24 +1000 | [diff] [blame] | 332 | |
Dave Airlie | 7c1c287 | 2008-11-28 14:22:24 +1000 | [diff] [blame] | 333 | struct drm_master *master; /* master this node is currently associated with |
| 334 | N.B. not always minor->master */ |
Daniel Vetter | 4b096ac | 2012-12-10 21:19:18 +0100 | [diff] [blame] | 335 | /** |
| 336 | * fbs - List of framebuffers associated with this file. |
| 337 | * |
| 338 | * Protected by fbs_lock. Note that the fbs list holds a reference on |
| 339 | * the fb object to prevent it from untimely disappearing. |
| 340 | */ |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 341 | struct list_head fbs; |
Daniel Vetter | 4b096ac | 2012-12-10 21:19:18 +0100 | [diff] [blame] | 342 | struct mutex fbs_lock; |
Kristian Høgsberg | c9a9c5e | 2009-09-12 04:33:34 +1000 | [diff] [blame] | 343 | |
Daniel Stone | e2f5d2e | 2015-05-22 13:34:51 +0100 | [diff] [blame] | 344 | /** User-created blob properties; this retains a reference on the |
| 345 | * property. */ |
| 346 | struct list_head blobs; |
| 347 | |
Kristian Høgsberg | c9a9c5e | 2009-09-12 04:33:34 +1000 | [diff] [blame] | 348 | wait_queue_head_t event_wait; |
| 349 | struct list_head event_list; |
| 350 | int event_space; |
Dave Airlie | 3248877 | 2011-11-25 15:21:02 +0000 | [diff] [blame] | 351 | |
Chris Wilson | 9b2c0b7 | 2015-11-25 14:39:03 +0000 | [diff] [blame] | 352 | struct mutex event_read_lock; |
| 353 | |
Dave Airlie | 3248877 | 2011-11-25 15:21:02 +0000 | [diff] [blame] | 354 | struct drm_prime_file_private prime; |
Dave Airlie | 84b1fd1 | 2007-07-11 15:53:27 +1000 | [diff] [blame] | 355 | }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 356 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 357 | /** |
| 358 | * Lock data. |
| 359 | */ |
Dave Airlie | 5591051 | 2007-07-11 16:53:40 +1000 | [diff] [blame] | 360 | struct drm_lock_data { |
Dave Airlie | c60ce62 | 2007-07-11 15:27:12 +1000 | [diff] [blame] | 361 | struct drm_hw_lock *hw_lock; /**< Hardware lock */ |
Dave Airlie | 8562b3f | 2007-11-05 12:37:41 +1000 | [diff] [blame] | 362 | /** Private of lock holder's file (NULL=kernel) */ |
| 363 | struct drm_file *file_priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 364 | wait_queue_head_t lock_queue; /**< Queue of blocked processes */ |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 365 | unsigned long lock_time; /**< Time of last lock in jiffies */ |
Thomas Hellstrom | 040ac32 | 2007-03-23 13:28:33 +1100 | [diff] [blame] | 366 | spinlock_t spinlock; |
| 367 | uint32_t kernel_waiters; |
| 368 | uint32_t user_waiters; |
| 369 | int idle_has_lock; |
Dave Airlie | 5591051 | 2007-07-11 16:53:40 +1000 | [diff] [blame] | 370 | }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 371 | |
| 372 | /** |
Thomas Hellstrom | c996fd0 | 2014-02-25 19:57:44 +0100 | [diff] [blame] | 373 | * struct drm_master - drm master structure |
| 374 | * |
| 375 | * @refcount: Refcount for this master object. |
| 376 | * @minor: Link back to minor char device we are master for. Immutable. |
| 377 | * @unique: Unique identifier: e.g. busid. Protected by drm_global_mutex. |
| 378 | * @unique_len: Length of unique field. Protected by drm_global_mutex. |
David Herrmann | 32e7b94 | 2015-05-04 21:01:30 +0200 | [diff] [blame] | 379 | * @magic_map: Map of used authentication tokens. Protected by struct_mutex. |
Thomas Hellstrom | c996fd0 | 2014-02-25 19:57:44 +0100 | [diff] [blame] | 380 | * @lock: DRI lock information. |
| 381 | * @driver_priv: Pointer to driver-private information. |
| 382 | */ |
Dave Airlie | 7c1c287 | 2008-11-28 14:22:24 +1000 | [diff] [blame] | 383 | struct drm_master { |
Thomas Hellstrom | c996fd0 | 2014-02-25 19:57:44 +0100 | [diff] [blame] | 384 | struct kref refcount; |
| 385 | struct drm_minor *minor; |
| 386 | char *unique; |
| 387 | int unique_len; |
David Herrmann | 32e7b94 | 2015-05-04 21:01:30 +0200 | [diff] [blame] | 388 | struct idr magic_map; |
Thomas Hellstrom | c996fd0 | 2014-02-25 19:57:44 +0100 | [diff] [blame] | 389 | struct drm_lock_data lock; |
| 390 | void *driver_priv; |
Dave Airlie | 7c1c287 | 2008-11-28 14:22:24 +1000 | [diff] [blame] | 391 | }; |
| 392 | |
Mario Kleiner | 27641c3 | 2010-10-23 04:20:23 +0200 | [diff] [blame] | 393 | /* Size of ringbuffer for vblank timestamps. Just double-buffer |
| 394 | * in initial implementation. |
| 395 | */ |
| 396 | #define DRM_VBLANKTIME_RBSIZE 2 |
| 397 | |
| 398 | /* Flags and return codes for get_vblank_timestamp() driver function. */ |
| 399 | #define DRM_CALLED_FROM_VBLIRQ 1 |
| 400 | #define DRM_VBLANKTIME_SCANOUTPOS_METHOD (1 << 0) |
Daniel Vetter | 3d3cbd8 | 2014-09-10 17:36:11 +0200 | [diff] [blame] | 401 | #define DRM_VBLANKTIME_IN_VBLANK (1 << 1) |
Mario Kleiner | 27641c3 | 2010-10-23 04:20:23 +0200 | [diff] [blame] | 402 | |
| 403 | /* get_scanout_position() return flags */ |
| 404 | #define DRM_SCANOUTPOS_VALID (1 << 0) |
Daniel Vetter | 3d3cbd8 | 2014-09-10 17:36:11 +0200 | [diff] [blame] | 405 | #define DRM_SCANOUTPOS_IN_VBLANK (1 << 1) |
Mario Kleiner | 27641c3 | 2010-10-23 04:20:23 +0200 | [diff] [blame] | 406 | #define DRM_SCANOUTPOS_ACCURATE (1 << 2) |
| 407 | |
Eric Anholt | 673a394 | 2008-07-30 12:06:12 -0700 | [diff] [blame] | 408 | /** |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 409 | * DRM driver structure. This structure represent the common code for |
| 410 | * a family of cards. There will one drm_device for each card present |
| 411 | * in this family |
| 412 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 413 | struct drm_driver { |
Dave Airlie | 22eae94 | 2005-11-10 22:16:34 +1100 | [diff] [blame] | 414 | int (*load) (struct drm_device *, unsigned long flags); |
| 415 | int (*firstopen) (struct drm_device *); |
Dave Airlie | 84b1fd1 | 2007-07-11 15:53:27 +1000 | [diff] [blame] | 416 | int (*open) (struct drm_device *, struct drm_file *); |
Eric Anholt | 6c340ea | 2007-08-25 20:23:09 +1000 | [diff] [blame] | 417 | void (*preclose) (struct drm_device *, struct drm_file *file_priv); |
Dave Airlie | 84b1fd1 | 2007-07-11 15:53:27 +1000 | [diff] [blame] | 418 | void (*postclose) (struct drm_device *, struct drm_file *); |
Dave Airlie | 22eae94 | 2005-11-10 22:16:34 +1100 | [diff] [blame] | 419 | void (*lastclose) (struct drm_device *); |
| 420 | int (*unload) (struct drm_device *); |
Dave Airlie | b932ccb | 2008-02-20 10:02:20 +1000 | [diff] [blame] | 421 | int (*suspend) (struct drm_device *, pm_message_t state); |
Jesse Barnes | e8b962b | 2007-11-22 14:02:38 +1000 | [diff] [blame] | 422 | int (*resume) (struct drm_device *); |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 423 | int (*dma_ioctl) (struct drm_device *dev, void *data, struct drm_file *file_priv); |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 424 | int (*dma_quiescent) (struct drm_device *); |
Dave Airlie | 84b1fd1 | 2007-07-11 15:53:27 +1000 | [diff] [blame] | 425 | int (*context_dtor) (struct drm_device *dev, int context); |
David Herrmann | 915b4d1 | 2014-08-29 12:12:43 +0200 | [diff] [blame] | 426 | int (*set_busid)(struct drm_device *dev, struct drm_master *master); |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 427 | |
Dave Airlie | cda1738 | 2005-07-10 17:31:26 +1000 | [diff] [blame] | 428 | /** |
Jesse Barnes | 0a3e67a | 2008-09-30 12:14:26 -0700 | [diff] [blame] | 429 | * get_vblank_counter - get raw hardware vblank counter |
| 430 | * @dev: DRM device |
Thierry Reding | 88e7271 | 2015-09-24 18:35:31 +0200 | [diff] [blame] | 431 | * @pipe: counter to fetch |
Jesse Barnes | 0a3e67a | 2008-09-30 12:14:26 -0700 | [diff] [blame] | 432 | * |
Laurent Pinchart | 3b02ab8 | 2012-05-17 13:27:20 +0200 | [diff] [blame] | 433 | * Driver callback for fetching a raw hardware vblank counter for @crtc. |
| 434 | * If a device doesn't have a hardware counter, the driver can simply |
| 435 | * return the value of drm_vblank_count. The DRM core will account for |
| 436 | * missed vblank events while interrupts where disabled based on system |
| 437 | * timestamps. |
Jesse Barnes | 0a3e67a | 2008-09-30 12:14:26 -0700 | [diff] [blame] | 438 | * |
| 439 | * Wraparound handling and loss of events due to modesetting is dealt |
| 440 | * with in the DRM core code. |
| 441 | * |
| 442 | * RETURNS |
| 443 | * Raw vblank counter value. |
| 444 | */ |
Thierry Reding | 88e7271 | 2015-09-24 18:35:31 +0200 | [diff] [blame] | 445 | u32 (*get_vblank_counter) (struct drm_device *dev, unsigned int pipe); |
Jesse Barnes | 0a3e67a | 2008-09-30 12:14:26 -0700 | [diff] [blame] | 446 | |
| 447 | /** |
| 448 | * enable_vblank - enable vblank interrupt events |
| 449 | * @dev: DRM device |
Thierry Reding | 88e7271 | 2015-09-24 18:35:31 +0200 | [diff] [blame] | 450 | * @pipe: which irq to enable |
Jesse Barnes | 0a3e67a | 2008-09-30 12:14:26 -0700 | [diff] [blame] | 451 | * |
| 452 | * Enable vblank interrupts for @crtc. If the device doesn't have |
| 453 | * a hardware vblank counter, this routine should be a no-op, since |
| 454 | * interrupts will have to stay on to keep the count accurate. |
| 455 | * |
| 456 | * RETURNS |
| 457 | * Zero on success, appropriate errno if the given @crtc's vblank |
| 458 | * interrupt cannot be enabled. |
| 459 | */ |
Thierry Reding | 88e7271 | 2015-09-24 18:35:31 +0200 | [diff] [blame] | 460 | int (*enable_vblank) (struct drm_device *dev, unsigned int pipe); |
Jesse Barnes | 0a3e67a | 2008-09-30 12:14:26 -0700 | [diff] [blame] | 461 | |
| 462 | /** |
| 463 | * disable_vblank - disable vblank interrupt events |
| 464 | * @dev: DRM device |
Thierry Reding | 88e7271 | 2015-09-24 18:35:31 +0200 | [diff] [blame] | 465 | * @pipe: which irq to enable |
Jesse Barnes | 0a3e67a | 2008-09-30 12:14:26 -0700 | [diff] [blame] | 466 | * |
| 467 | * Disable vblank interrupts for @crtc. If the device doesn't have |
| 468 | * a hardware vblank counter, this routine should be a no-op, since |
| 469 | * interrupts will have to stay on to keep the count accurate. |
| 470 | */ |
Thierry Reding | 88e7271 | 2015-09-24 18:35:31 +0200 | [diff] [blame] | 471 | void (*disable_vblank) (struct drm_device *dev, unsigned int pipe); |
Jesse Barnes | 0a3e67a | 2008-09-30 12:14:26 -0700 | [diff] [blame] | 472 | |
| 473 | /** |
Dave Airlie | cda1738 | 2005-07-10 17:31:26 +1000 | [diff] [blame] | 474 | * Called by \c drm_device_is_agp. Typically used to determine if a |
| 475 | * card is really attached to AGP or not. |
| 476 | * |
| 477 | * \param dev DRM device handle |
| 478 | * |
| 479 | * \returns |
| 480 | * One of three values is returned depending on whether or not the |
| 481 | * card is absolutely \b not AGP (return of 0), absolutely \b is AGP |
| 482 | * (return of 1), or may or may not be AGP (return of 2). |
| 483 | */ |
Dave Airlie | 84b1fd1 | 2007-07-11 15:53:27 +1000 | [diff] [blame] | 484 | int (*device_is_agp) (struct drm_device *dev); |
Dave Airlie | cda1738 | 2005-07-10 17:31:26 +1000 | [diff] [blame] | 485 | |
Mario Kleiner | 27641c3 | 2010-10-23 04:20:23 +0200 | [diff] [blame] | 486 | /** |
| 487 | * Called by vblank timestamping code. |
| 488 | * |
Mario Kleiner | 8f6fce0 | 2013-10-30 05:13:06 +0100 | [diff] [blame] | 489 | * Return the current display scanout position from a crtc, and an |
| 490 | * optional accurate ktime_get timestamp of when position was measured. |
Mario Kleiner | 27641c3 | 2010-10-23 04:20:23 +0200 | [diff] [blame] | 491 | * |
| 492 | * \param dev DRM device. |
Thierry Reding | 88e7271 | 2015-09-24 18:35:31 +0200 | [diff] [blame] | 493 | * \param pipe Id of the crtc to query. |
Ville Syrjälä | abca9e4 | 2013-10-28 20:50:48 +0200 | [diff] [blame] | 494 | * \param flags Flags from the caller (DRM_CALLED_FROM_VBLIRQ or 0). |
Mario Kleiner | 27641c3 | 2010-10-23 04:20:23 +0200 | [diff] [blame] | 495 | * \param *vpos Target location for current vertical scanout position. |
| 496 | * \param *hpos Target location for current horizontal scanout position. |
Mario Kleiner | 8f6fce0 | 2013-10-30 05:13:06 +0100 | [diff] [blame] | 497 | * \param *stime Target location for timestamp taken immediately before |
| 498 | * scanout position query. Can be NULL to skip timestamp. |
| 499 | * \param *etime Target location for timestamp taken immediately after |
| 500 | * scanout position query. Can be NULL to skip timestamp. |
Ville Syrjälä | 3bb403b | 2015-09-14 22:43:44 +0300 | [diff] [blame] | 501 | * \param mode Current display timings. |
Mario Kleiner | 27641c3 | 2010-10-23 04:20:23 +0200 | [diff] [blame] | 502 | * |
| 503 | * Returns vpos as a positive number while in active scanout area. |
| 504 | * Returns vpos as a negative number inside vblank, counting the number |
| 505 | * of scanlines to go until end of vblank, e.g., -1 means "one scanline |
| 506 | * until start of active scanout / end of vblank." |
| 507 | * |
| 508 | * \return Flags, or'ed together as follows: |
| 509 | * |
Lucas De Marchi | 25985ed | 2011-03-30 22:57:33 -0300 | [diff] [blame] | 510 | * DRM_SCANOUTPOS_VALID = Query successful. |
Mario Kleiner | 27641c3 | 2010-10-23 04:20:23 +0200 | [diff] [blame] | 511 | * DRM_SCANOUTPOS_INVBL = Inside vblank. |
| 512 | * DRM_SCANOUTPOS_ACCURATE = Returned position is accurate. A lack of |
| 513 | * this flag means that returned position may be offset by a constant |
| 514 | * but unknown small number of scanlines wrt. real scanout position. |
| 515 | * |
| 516 | */ |
Thierry Reding | 88e7271 | 2015-09-24 18:35:31 +0200 | [diff] [blame] | 517 | int (*get_scanout_position) (struct drm_device *dev, unsigned int pipe, |
| 518 | unsigned int flags, int *vpos, int *hpos, |
Ville Syrjälä | 3bb403b | 2015-09-14 22:43:44 +0300 | [diff] [blame] | 519 | ktime_t *stime, ktime_t *etime, |
| 520 | const struct drm_display_mode *mode); |
Mario Kleiner | 27641c3 | 2010-10-23 04:20:23 +0200 | [diff] [blame] | 521 | |
| 522 | /** |
| 523 | * Called by \c drm_get_last_vbltimestamp. Should return a precise |
| 524 | * timestamp when the most recent VBLANK interval ended or will end. |
| 525 | * |
| 526 | * Specifically, the timestamp in @vblank_time should correspond as |
| 527 | * closely as possible to the time when the first video scanline of |
| 528 | * the video frame after the end of VBLANK will start scanning out, |
Justin P. Mattock | 42b2aa8 | 2011-11-28 20:31:00 -0800 | [diff] [blame] | 529 | * the time immediately after end of the VBLANK interval. If the |
Mario Kleiner | 27641c3 | 2010-10-23 04:20:23 +0200 | [diff] [blame] | 530 | * @crtc is currently inside VBLANK, this will be a time in the future. |
| 531 | * If the @crtc is currently scanning out a frame, this will be the |
| 532 | * past start time of the current scanout. This is meant to adhere |
| 533 | * to the OpenML OML_sync_control extension specification. |
| 534 | * |
| 535 | * \param dev dev DRM device handle. |
Thierry Reding | 88e7271 | 2015-09-24 18:35:31 +0200 | [diff] [blame] | 536 | * \param pipe crtc for which timestamp should be returned. |
Mario Kleiner | 27641c3 | 2010-10-23 04:20:23 +0200 | [diff] [blame] | 537 | * \param *max_error Maximum allowable timestamp error in nanoseconds. |
| 538 | * Implementation should strive to provide timestamp |
| 539 | * with an error of at most *max_error nanoseconds. |
| 540 | * Returns true upper bound on error for timestamp. |
| 541 | * \param *vblank_time Target location for returned vblank timestamp. |
| 542 | * \param flags 0 = Defaults, no special treatment needed. |
| 543 | * \param DRM_CALLED_FROM_VBLIRQ = Function is called from vblank |
| 544 | * irq handler. Some drivers need to apply some workarounds |
| 545 | * for gpu-specific vblank irq quirks if flag is set. |
| 546 | * |
| 547 | * \returns |
| 548 | * Zero if timestamping isn't supported in current display mode or a |
| 549 | * negative number on failure. A positive status code on success, |
| 550 | * which describes how the vblank_time timestamp was computed. |
| 551 | */ |
Thierry Reding | 88e7271 | 2015-09-24 18:35:31 +0200 | [diff] [blame] | 552 | int (*get_vblank_timestamp) (struct drm_device *dev, unsigned int pipe, |
Mario Kleiner | 27641c3 | 2010-10-23 04:20:23 +0200 | [diff] [blame] | 553 | int *max_error, |
| 554 | struct timeval *vblank_time, |
| 555 | unsigned flags); |
| 556 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 557 | /* these have to be filled in */ |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 558 | |
Daniel Vetter | e9f0d76 | 2013-12-11 11:34:42 +0100 | [diff] [blame] | 559 | irqreturn_t(*irq_handler) (int irq, void *arg); |
Dave Airlie | 84b1fd1 | 2007-07-11 15:53:27 +1000 | [diff] [blame] | 560 | void (*irq_preinstall) (struct drm_device *dev); |
Jesse Barnes | 0a3e67a | 2008-09-30 12:14:26 -0700 | [diff] [blame] | 561 | int (*irq_postinstall) (struct drm_device *dev); |
Dave Airlie | 84b1fd1 | 2007-07-11 15:53:27 +1000 | [diff] [blame] | 562 | void (*irq_uninstall) (struct drm_device *dev); |
Dave Airlie | 22eae94 | 2005-11-10 22:16:34 +1100 | [diff] [blame] | 563 | |
Dave Airlie | 7c1c287 | 2008-11-28 14:22:24 +1000 | [diff] [blame] | 564 | /* Master routines */ |
| 565 | int (*master_create)(struct drm_device *dev, struct drm_master *master); |
| 566 | void (*master_destroy)(struct drm_device *dev, struct drm_master *master); |
Thomas Hellstrom | 862302f | 2009-12-02 18:15:25 +0000 | [diff] [blame] | 567 | /** |
| 568 | * master_set is called whenever the minor master is set. |
| 569 | * master_drop is called whenever the minor master is dropped. |
| 570 | */ |
| 571 | |
| 572 | int (*master_set)(struct drm_device *dev, struct drm_file *file_priv, |
| 573 | bool from_open); |
| 574 | void (*master_drop)(struct drm_device *dev, struct drm_file *file_priv, |
| 575 | bool from_release); |
Dave Airlie | 7c1c287 | 2008-11-28 14:22:24 +1000 | [diff] [blame] | 576 | |
Ben Gamari | 955b12d | 2009-02-17 20:08:49 -0500 | [diff] [blame] | 577 | int (*debugfs_init)(struct drm_minor *minor); |
| 578 | void (*debugfs_cleanup)(struct drm_minor *minor); |
Eric Anholt | 673a394 | 2008-07-30 12:06:12 -0700 | [diff] [blame] | 579 | |
| 580 | /** |
| 581 | * Driver-specific constructor for drm_gem_objects, to set up |
| 582 | * obj->driver_private. |
| 583 | * |
| 584 | * Returns 0 on success. |
| 585 | */ |
Eric Anholt | 673a394 | 2008-07-30 12:06:12 -0700 | [diff] [blame] | 586 | void (*gem_free_object) (struct drm_gem_object *obj); |
Ben Skeggs | 304eda3 | 2011-06-09 00:24:59 +0000 | [diff] [blame] | 587 | int (*gem_open_object) (struct drm_gem_object *, struct drm_file *); |
| 588 | void (*gem_close_object) (struct drm_gem_object *, struct drm_file *); |
Eric Anholt | 673a394 | 2008-07-30 12:06:12 -0700 | [diff] [blame] | 589 | |
Eric Anholt | 10028c5 | 2015-11-30 10:55:13 -0800 | [diff] [blame] | 590 | /** |
| 591 | * Hook for allocating the GEM object struct, for use by core |
| 592 | * helpers. |
| 593 | */ |
| 594 | struct drm_gem_object *(*gem_create_object)(struct drm_device *dev, |
| 595 | size_t size); |
| 596 | |
Dave Airlie | 3248877 | 2011-11-25 15:21:02 +0000 | [diff] [blame] | 597 | /* prime: */ |
| 598 | /* export handle -> fd (see drm_gem_prime_handle_to_fd() helper) */ |
| 599 | int (*prime_handle_to_fd)(struct drm_device *dev, struct drm_file *file_priv, |
| 600 | uint32_t handle, uint32_t flags, int *prime_fd); |
| 601 | /* import fd -> handle (see drm_gem_prime_fd_to_handle() helper) */ |
| 602 | int (*prime_fd_to_handle)(struct drm_device *dev, struct drm_file *file_priv, |
| 603 | int prime_fd, uint32_t *handle); |
| 604 | /* export GEM -> dmabuf */ |
| 605 | struct dma_buf * (*gem_prime_export)(struct drm_device *dev, |
| 606 | struct drm_gem_object *obj, int flags); |
| 607 | /* import dmabuf -> GEM */ |
| 608 | struct drm_gem_object * (*gem_prime_import)(struct drm_device *dev, |
| 609 | struct dma_buf *dma_buf); |
Aaron Plattner | 8917764 | 2013-01-15 20:47:42 +0000 | [diff] [blame] | 610 | /* low-level interface used by drm_gem_prime_{import,export} */ |
| 611 | int (*gem_prime_pin)(struct drm_gem_object *obj); |
Maarten Lankhorst | 102d6db | 2013-04-09 09:18:44 +0200 | [diff] [blame] | 612 | void (*gem_prime_unpin)(struct drm_gem_object *obj); |
Maarten Lankhorst | 3aac450 | 2014-07-01 12:57:26 +0200 | [diff] [blame] | 613 | struct reservation_object * (*gem_prime_res_obj)( |
| 614 | struct drm_gem_object *obj); |
Aaron Plattner | 8917764 | 2013-01-15 20:47:42 +0000 | [diff] [blame] | 615 | struct sg_table *(*gem_prime_get_sg_table)(struct drm_gem_object *obj); |
| 616 | struct drm_gem_object *(*gem_prime_import_sg_table)( |
Maarten Lankhorst | b5e9c1a | 2014-01-09 11:03:14 +0100 | [diff] [blame] | 617 | struct drm_device *dev, |
| 618 | struct dma_buf_attachment *attach, |
Aaron Plattner | 8917764 | 2013-01-15 20:47:42 +0000 | [diff] [blame] | 619 | struct sg_table *sgt); |
| 620 | void *(*gem_prime_vmap)(struct drm_gem_object *obj); |
| 621 | void (*gem_prime_vunmap)(struct drm_gem_object *obj, void *vaddr); |
Joonyoung Shim | 7c397cd | 2013-06-28 14:24:53 +0900 | [diff] [blame] | 622 | int (*gem_prime_mmap)(struct drm_gem_object *obj, |
| 623 | struct vm_area_struct *vma); |
Dave Airlie | 3248877 | 2011-11-25 15:21:02 +0000 | [diff] [blame] | 624 | |
Dave Airlie | 28d5204 | 2009-09-21 14:33:58 +1000 | [diff] [blame] | 625 | /* vga arb irq handler */ |
| 626 | void (*vgaarb_irq)(struct drm_device *dev, bool state); |
| 627 | |
Dave Airlie | ff72145b | 2011-02-07 12:16:14 +1000 | [diff] [blame] | 628 | /* dumb alloc support */ |
| 629 | int (*dumb_create)(struct drm_file *file_priv, |
| 630 | struct drm_device *dev, |
| 631 | struct drm_mode_create_dumb *args); |
| 632 | int (*dumb_map_offset)(struct drm_file *file_priv, |
| 633 | struct drm_device *dev, uint32_t handle, |
| 634 | uint64_t *offset); |
| 635 | int (*dumb_destroy)(struct drm_file *file_priv, |
| 636 | struct drm_device *dev, |
| 637 | uint32_t handle); |
| 638 | |
Jesse Barnes | a2c0a97 | 2008-11-05 10:31:53 -0800 | [diff] [blame] | 639 | /* Driver private ops for this object */ |
Laurent Pinchart | 78b6855 | 2012-05-17 13:27:22 +0200 | [diff] [blame] | 640 | const struct vm_operations_struct *gem_vm_ops; |
Jesse Barnes | a2c0a97 | 2008-11-05 10:31:53 -0800 | [diff] [blame] | 641 | |
Dave Airlie | 22eae94 | 2005-11-10 22:16:34 +1100 | [diff] [blame] | 642 | int major; |
| 643 | int minor; |
| 644 | int patchlevel; |
| 645 | char *name; |
| 646 | char *desc; |
| 647 | char *date; |
| 648 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 649 | u32 driver_features; |
| 650 | int dev_priv_size; |
Rob Clark | baa7094 | 2013-08-02 13:27:49 -0400 | [diff] [blame] | 651 | const struct drm_ioctl_desc *ioctls; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 652 | int num_ioctls; |
Arjan van de Ven | e08e96d | 2011-10-31 07:28:57 -0700 | [diff] [blame] | 653 | const struct file_operations *fops; |
Dave Airlie | 8410ea3 | 2010-12-15 03:16:38 +1000 | [diff] [blame] | 654 | |
Daniel Vetter | b3f2333 | 2013-12-11 11:34:31 +0100 | [diff] [blame] | 655 | /* List of devices hanging off this driver with stealth attach. */ |
| 656 | struct list_head legacy_dev_list; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 657 | }; |
| 658 | |
David Herrmann | cb8a239 | 2014-01-29 12:31:40 +0100 | [diff] [blame] | 659 | enum drm_minor_type { |
| 660 | DRM_MINOR_LEGACY, |
| 661 | DRM_MINOR_CONTROL, |
| 662 | DRM_MINOR_RENDER, |
| 663 | DRM_MINOR_CNT, |
| 664 | }; |
Dave Airlie | 2c14f28 | 2008-04-21 16:47:32 +1000 | [diff] [blame] | 665 | |
Ben Gamari | 955b12d | 2009-02-17 20:08:49 -0500 | [diff] [blame] | 666 | /** |
| 667 | * Info file list entry. This structure represents a debugfs or proc file to |
| 668 | * be created by the drm core |
| 669 | */ |
| 670 | struct drm_info_list { |
| 671 | const char *name; /** file name */ |
| 672 | int (*show)(struct seq_file*, void*); /** show callback */ |
| 673 | u32 driver_features; /**< Required driver features for this entry */ |
| 674 | void *data; |
| 675 | }; |
| 676 | |
| 677 | /** |
| 678 | * debugfs node structure. This structure represents a debugfs file. |
| 679 | */ |
| 680 | struct drm_info_node { |
| 681 | struct list_head list; |
| 682 | struct drm_minor *minor; |
David Howells | ce089b5 | 2013-04-12 15:23:25 +0100 | [diff] [blame] | 683 | const struct drm_info_list *info_ent; |
Ben Gamari | 955b12d | 2009-02-17 20:08:49 -0500 | [diff] [blame] | 684 | struct dentry *dent; |
| 685 | }; |
| 686 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 687 | /** |
Dave Airlie | 2c14f28 | 2008-04-21 16:47:32 +1000 | [diff] [blame] | 688 | * DRM minor structure. This structure represents a drm minor number. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 689 | */ |
Dave Airlie | 2c14f28 | 2008-04-21 16:47:32 +1000 | [diff] [blame] | 690 | struct drm_minor { |
| 691 | int index; /**< Minor device number */ |
| 692 | int type; /**< Control or render */ |
Dave Airlie | 5bdebb1 | 2013-10-11 14:07:25 +1000 | [diff] [blame] | 693 | struct device *kdev; /**< Linux device */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 694 | struct drm_device *dev; |
Ben Gamari | 955b12d | 2009-02-17 20:08:49 -0500 | [diff] [blame] | 695 | |
Ben Gamari | 955b12d | 2009-02-17 20:08:49 -0500 | [diff] [blame] | 696 | struct dentry *debugfs_root; |
Marcin Slusarz | b3e067c | 2011-11-09 22:20:35 +0100 | [diff] [blame] | 697 | |
| 698 | struct list_head debugfs_list; |
| 699 | struct mutex debugfs_lock; /* Protects debugfs_list. */ |
Ben Gamari | 955b12d | 2009-02-17 20:08:49 -0500 | [diff] [blame] | 700 | |
Thomas Hellstrom | c996fd0 | 2014-02-25 19:57:44 +0100 | [diff] [blame] | 701 | /* currently active master for this node. Protected by master_mutex */ |
| 702 | struct drm_master *master; |
Dave Airlie | 84b1fd1 | 2007-07-11 15:53:27 +1000 | [diff] [blame] | 703 | }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 704 | |
Chris Wilson | 1794d25 | 2011-04-17 07:43:32 +0100 | [diff] [blame] | 705 | |
Kristian Høgsberg | c9a9c5e | 2009-09-12 04:33:34 +1000 | [diff] [blame] | 706 | struct drm_pending_vblank_event { |
| 707 | struct drm_pending_event base; |
Thierry Reding | cc1ef11 | 2015-08-12 17:00:31 +0200 | [diff] [blame] | 708 | unsigned int pipe; |
Kristian Høgsberg | c9a9c5e | 2009-09-12 04:33:34 +1000 | [diff] [blame] | 709 | struct drm_event_vblank event; |
| 710 | }; |
| 711 | |
Ville Syrjälä | 5380e92 | 2013-10-04 14:53:36 +0300 | [diff] [blame] | 712 | struct drm_vblank_crtc { |
Ville Syrjälä | e69595c | 2014-02-19 19:36:08 +0200 | [diff] [blame] | 713 | struct drm_device *dev; /* pointer to the drm_device */ |
Ville Syrjälä | 5380e92 | 2013-10-04 14:53:36 +0300 | [diff] [blame] | 714 | wait_queue_head_t queue; /**< VBLANK wait queue */ |
Ville Syrjälä | e69595c | 2014-02-19 19:36:08 +0200 | [diff] [blame] | 715 | struct timer_list disable_timer; /* delayed disable timer */ |
Daniel Vetter | 99264a6 | 2015-04-15 19:34:43 +0200 | [diff] [blame] | 716 | |
| 717 | /* vblank counter, protected by dev->vblank_time_lock for writes */ |
Daniel Vetter | 209e4dbc | 2015-08-07 12:31:17 +0200 | [diff] [blame] | 718 | u32 count; |
Daniel Vetter | 99264a6 | 2015-04-15 19:34:43 +0200 | [diff] [blame] | 719 | /* vblank timestamps, protected by dev->vblank_time_lock for writes */ |
| 720 | struct timeval time[DRM_VBLANKTIME_RBSIZE]; |
| 721 | |
Ville Syrjälä | 5380e92 | 2013-10-04 14:53:36 +0300 | [diff] [blame] | 722 | atomic_t refcount; /* number of users of vblank interruptsper crtc */ |
| 723 | u32 last; /* protected by dev->vbl_lock, used */ |
| 724 | /* for wraparound handling */ |
| 725 | u32 last_wait; /* Last vblank seqno waited per CRTC */ |
| 726 | unsigned int inmodeset; /* Display driver is setting mode */ |
Thierry Reding | cc1ef11 | 2015-08-12 17:00:31 +0200 | [diff] [blame] | 727 | unsigned int pipe; /* crtc index */ |
Ville Syrjälä | eba1f35 | 2015-09-14 22:43:43 +0300 | [diff] [blame] | 728 | int framedur_ns; /* frame/field duration in ns */ |
| 729 | int linedur_ns; /* line duration in ns */ |
Ville Syrjälä | 5380e92 | 2013-10-04 14:53:36 +0300 | [diff] [blame] | 730 | bool enabled; /* so we don't call enable more than |
| 731 | once per disable */ |
| 732 | }; |
| 733 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 734 | /** |
| 735 | * DRM device structure. This structure represent a complete card that |
| 736 | * may contain multiple heads. |
| 737 | */ |
Dave Airlie | 84b1fd1 | 2007-07-11 15:53:27 +1000 | [diff] [blame] | 738 | struct drm_device { |
Daniel Vetter | b3f2333 | 2013-12-11 11:34:31 +0100 | [diff] [blame] | 739 | struct list_head legacy_dev_list;/**< list of devices per driver for stealth attach cleanup */ |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 740 | int if_version; /**< Highest interface version set */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 741 | |
David Herrmann | 45e212d | 2014-01-28 16:00:35 +0100 | [diff] [blame] | 742 | /** \name Lifetime Management */ |
| 743 | /*@{ */ |
David Herrmann | 099d1c2 | 2014-01-29 10:21:36 +0100 | [diff] [blame] | 744 | struct kref ref; /**< Object ref-count */ |
David Herrmann | 45e212d | 2014-01-28 16:00:35 +0100 | [diff] [blame] | 745 | struct device *dev; /**< Device structure of bus-device */ |
| 746 | struct drm_driver *driver; /**< DRM driver managing the device */ |
| 747 | void *dev_private; /**< DRM driver private data */ |
David Herrmann | 45e212d | 2014-01-28 16:00:35 +0100 | [diff] [blame] | 748 | struct drm_minor *control; /**< Control node */ |
| 749 | struct drm_minor *primary; /**< Primary node */ |
| 750 | struct drm_minor *render; /**< Render node */ |
| 751 | atomic_t unplugged; /**< Flag whether dev is dead */ |
David Herrmann | 07b48c3 | 2014-03-16 13:13:51 +0100 | [diff] [blame] | 752 | struct inode *anon_inode; /**< inode for private address-space */ |
Thierry Reding | ca8e2ad | 2014-04-11 15:23:00 +0200 | [diff] [blame] | 753 | char *unique; /**< unique name of the device */ |
David Herrmann | 45e212d | 2014-01-28 16:00:35 +0100 | [diff] [blame] | 754 | /*@} */ |
| 755 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 756 | /** \name Locks */ |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 757 | /*@{ */ |
Dave Airlie | 30e2fb1 | 2006-02-02 19:37:46 +1100 | [diff] [blame] | 758 | struct mutex struct_mutex; /**< For others */ |
Thomas Hellstrom | c996fd0 | 2014-02-25 19:57:44 +0100 | [diff] [blame] | 759 | struct mutex master_mutex; /**< For drm_minor::master and drm_file::is_master */ |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 760 | /*@} */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 761 | |
| 762 | /** \name Usage Counters */ |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 763 | /*@{ */ |
Daniel Vetter | fc8fd40 | 2013-11-03 20:46:34 +0100 | [diff] [blame] | 764 | int open_count; /**< Outstanding files open, protected by drm_global_mutex. */ |
Daniel Vetter | 2177a21 | 2013-12-16 11:21:06 +0100 | [diff] [blame] | 765 | spinlock_t buf_lock; /**< For drm_device::buf_use and a few other things. */ |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 766 | int buf_use; /**< Buffers in use -- cannot alloc */ |
| 767 | atomic_t buf_alloc; /**< Buffer allocation in progress */ |
| 768 | /*@} */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 769 | |
Dave Airlie | bd1b331 | 2007-05-26 05:01:51 +1000 | [diff] [blame] | 770 | struct list_head filelist; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 771 | |
| 772 | /** \name Memory management */ |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 773 | /*@{ */ |
Dave Airlie | bd1b331 | 2007-05-26 05:01:51 +1000 | [diff] [blame] | 774 | struct list_head maplist; /**< Linked list of regions */ |
Dave Airlie | e0be428 | 2007-07-12 10:26:44 +1000 | [diff] [blame] | 775 | struct drm_open_hash map_hash; /**< User token hash table for maps */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 776 | |
| 777 | /** \name Context handle management */ |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 778 | /*@{ */ |
Dave Airlie | bd1b331 | 2007-05-26 05:01:51 +1000 | [diff] [blame] | 779 | struct list_head ctxlist; /**< Linked list of context handles */ |
Dave Airlie | 30e2fb1 | 2006-02-02 19:37:46 +1100 | [diff] [blame] | 780 | struct mutex ctxlist_mutex; /**< For ctxlist */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 781 | |
Dave Airlie | 6296814 | 2007-07-17 10:46:52 +1000 | [diff] [blame] | 782 | struct idr ctx_idr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 783 | |
Dave Airlie | bd1b331 | 2007-05-26 05:01:51 +1000 | [diff] [blame] | 784 | struct list_head vmalist; /**< List of vmas (for debugging) */ |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 785 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 786 | /*@} */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 787 | |
Daniel Vetter | a344a7e | 2011-10-26 00:54:41 +0200 | [diff] [blame] | 788 | /** \name DMA support */ |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 789 | /*@{ */ |
Dave Airlie | cdd55a2 | 2007-07-11 16:32:08 +1000 | [diff] [blame] | 790 | struct drm_device_dma *dma; /**< Optional pointer for DMA support */ |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 791 | /*@} */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 792 | |
| 793 | /** \name Context support */ |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 794 | /*@{ */ |
Daniel Vetter | 7c1a38e | 2013-12-16 11:21:15 +0100 | [diff] [blame] | 795 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 796 | __volatile__ long context_flag; /**< Context swapping flag */ |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 797 | int last_context; /**< Last current context */ |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 798 | /*@} */ |
| 799 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 800 | /** \name VBLANK IRQ support */ |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 801 | /*@{ */ |
Thierry Reding | b46004b | 2014-12-17 16:41:41 +0100 | [diff] [blame] | 802 | bool irq_enabled; |
| 803 | int irq; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 804 | |
Jesse Barnes | 0a3e67a | 2008-09-30 12:14:26 -0700 | [diff] [blame] | 805 | /* |
| 806 | * At load time, disabling the vblank interrupt won't be allowed since |
| 807 | * old clients may not call the modeset ioctl and therefore misbehave. |
| 808 | * Once the modeset ioctl *has* been called though, we can safely |
| 809 | * disable them when unused. |
| 810 | */ |
Ville Syrjälä | ba0bf12 | 2013-10-04 14:53:33 +0300 | [diff] [blame] | 811 | bool vblank_disable_allowed; |
Jesse Barnes | 0a3e67a | 2008-09-30 12:14:26 -0700 | [diff] [blame] | 812 | |
Ville Syrjälä | 00185e6 | 2014-08-06 14:49:54 +0300 | [diff] [blame] | 813 | /* |
| 814 | * If true, vblank interrupt will be disabled immediately when the |
| 815 | * refcount drops to zero, as opposed to via the vblank disable |
| 816 | * timer. |
| 817 | * This can be set to true it the hardware has a working vblank |
| 818 | * counter and the driver uses drm_vblank_on() and drm_vblank_off() |
| 819 | * appropriately. |
| 820 | */ |
| 821 | bool vblank_disable_immediate; |
| 822 | |
Ville Syrjälä | 5380e92 | 2013-10-04 14:53:36 +0300 | [diff] [blame] | 823 | /* array of size num_crtcs */ |
| 824 | struct drm_vblank_crtc *vblank; |
| 825 | |
Mario Kleiner | 27641c3 | 2010-10-23 04:20:23 +0200 | [diff] [blame] | 826 | spinlock_t vblank_time_lock; /**< Protects vblank count and time updates during vblank enable/disable */ |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 827 | spinlock_t vbl_lock; |
Jesse Barnes | 0a3e67a | 2008-09-30 12:14:26 -0700 | [diff] [blame] | 828 | |
| 829 | u32 max_vblank_count; /**< size of vblank counter register */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 830 | |
Kristian Høgsberg | c9a9c5e | 2009-09-12 04:33:34 +1000 | [diff] [blame] | 831 | /** |
| 832 | * List of events |
| 833 | */ |
| 834 | struct list_head vblank_event_list; |
| 835 | spinlock_t event_lock; |
| 836 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 837 | /*@} */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 838 | |
Dave Airlie | 5591051 | 2007-07-11 16:53:40 +1000 | [diff] [blame] | 839 | struct drm_agp_head *agp; /**< AGP data */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 840 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 841 | struct pci_dev *pdev; /**< PCI device structure */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 842 | #ifdef __alpha__ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 843 | struct pci_controller *hose; |
| 844 | #endif |
Jordan Crouse | dcdb167 | 2010-05-27 13:40:25 -0600 | [diff] [blame] | 845 | |
| 846 | struct platform_device *platformdev; /**< Platform device struture */ |
Dave Airlie | dc5698e | 2013-09-09 10:02:56 +1000 | [diff] [blame] | 847 | struct virtio_device *virtdev; |
Jordan Crouse | dcdb167 | 2010-05-27 13:40:25 -0600 | [diff] [blame] | 848 | |
Dave Airlie | 5591051 | 2007-07-11 16:53:40 +1000 | [diff] [blame] | 849 | struct drm_sg_mem *sg; /**< Scatter gather memory */ |
Dave Airlie | 1922756 | 2011-02-24 08:35:06 +1000 | [diff] [blame] | 850 | unsigned int num_crtcs; /**< Number of CRTCs on this device */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 851 | |
David Herrmann | 69d516c | 2014-08-29 12:12:39 +0200 | [diff] [blame] | 852 | struct { |
| 853 | int context; |
| 854 | struct drm_hw_lock *lock; |
| 855 | } sigdata; |
| 856 | |
Benjamin Herrenschmidt | f77d390 | 2009-02-02 16:55:46 +1100 | [diff] [blame] | 857 | struct drm_local_map *agp_buffer_map; |
Dave Airlie | d1f2b55 | 2005-08-05 22:11:22 +1000 | [diff] [blame] | 858 | unsigned int agp_buffer_token; |
=?utf-8?q?Michel_D=C3=A4nzer?= | bea5679 | 2006-10-24 23:04:19 +1000 | [diff] [blame] | 859 | |
Rob Clark | 417009fb | 2014-11-25 20:33:10 -0500 | [diff] [blame] | 860 | struct drm_mode_config mode_config; /**< Current mode config */ |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 861 | |
Eric Anholt | 673a394 | 2008-07-30 12:06:12 -0700 | [diff] [blame] | 862 | /** \name GEM information */ |
| 863 | /*@{ */ |
Daniel Vetter | cd4f013 | 2013-08-15 00:02:44 +0200 | [diff] [blame] | 864 | struct mutex object_name_lock; |
Eric Anholt | 673a394 | 2008-07-30 12:06:12 -0700 | [diff] [blame] | 865 | struct idr object_name_idr; |
Daniel Vetter | b04a590 | 2013-12-11 14:24:46 +0100 | [diff] [blame] | 866 | struct drm_vma_offset_manager *vma_offset_manager; |
Eric Anholt | 673a394 | 2008-07-30 12:06:12 -0700 | [diff] [blame] | 867 | /*@} */ |
Dave Airlie | 5bcf719 | 2010-12-07 09:20:40 +1000 | [diff] [blame] | 868 | int switch_power_state; |
Dave Airlie | 84b1fd1 | 2007-07-11 15:53:27 +1000 | [diff] [blame] | 869 | }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 870 | |
Dave Airlie | 5bcf719 | 2010-12-07 09:20:40 +1000 | [diff] [blame] | 871 | #define DRM_SWITCH_POWER_ON 0 |
| 872 | #define DRM_SWITCH_POWER_OFF 1 |
| 873 | #define DRM_SWITCH_POWER_CHANGING 2 |
Dave Airlie | 13bb9cc | 2012-09-12 15:55:05 +1000 | [diff] [blame] | 874 | #define DRM_SWITCH_POWER_DYNAMIC_OFF 3 |
Dave Airlie | 5bcf719 | 2010-12-07 09:20:40 +1000 | [diff] [blame] | 875 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 876 | static __inline__ int drm_core_check_feature(struct drm_device *dev, |
| 877 | int feature) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 878 | { |
| 879 | return ((dev->driver->driver_features & feature) ? 1 : 0); |
| 880 | } |
| 881 | |
Dave Airlie | 2c07a21 | 2012-02-20 14:18:07 +0000 | [diff] [blame] | 882 | static inline void drm_device_set_unplugged(struct drm_device *dev) |
| 883 | { |
| 884 | smp_wmb(); |
| 885 | atomic_set(&dev->unplugged, 1); |
| 886 | } |
| 887 | |
| 888 | static inline int drm_device_is_unplugged(struct drm_device *dev) |
| 889 | { |
| 890 | int ret = atomic_read(&dev->unplugged); |
| 891 | smp_rmb(); |
| 892 | return ret; |
| 893 | } |
| 894 | |
Thomas Hellstrom | 4368305 | 2014-03-13 11:07:44 +0100 | [diff] [blame] | 895 | static inline bool drm_is_render_client(const struct drm_file *file_priv) |
David Herrmann | 1793126 | 2013-08-25 18:29:00 +0200 | [diff] [blame] | 896 | { |
| 897 | return file_priv->minor->type == DRM_MINOR_RENDER; |
| 898 | } |
| 899 | |
Thomas Hellstrom | ac05dbc | 2014-02-19 14:21:48 +0100 | [diff] [blame] | 900 | static inline bool drm_is_control_client(const struct drm_file *file_priv) |
| 901 | { |
| 902 | return file_priv->minor->type == DRM_MINOR_CONTROL; |
| 903 | } |
| 904 | |
Thomas Hellstrom | 4368305 | 2014-03-13 11:07:44 +0100 | [diff] [blame] | 905 | static inline bool drm_is_primary_client(const struct drm_file *file_priv) |
| 906 | { |
| 907 | return file_priv->minor->type == DRM_MINOR_LEGACY; |
| 908 | } |
| 909 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 910 | /******************************************************************/ |
| 911 | /** \name Internal function definitions */ |
| 912 | /*@{*/ |
| 913 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 914 | /* Driver support (drm_drv.h) */ |
Thomas Hellstrom | 5101020 | 2015-07-10 22:31:08 -0700 | [diff] [blame] | 915 | extern int drm_ioctl_permit(u32 flags, struct drm_file *file_priv); |
Arnd Bergmann | ed8b670 | 2009-12-16 22:17:09 +0000 | [diff] [blame] | 916 | extern long drm_ioctl(struct file *filp, |
| 917 | unsigned int cmd, unsigned long arg); |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 918 | extern long drm_compat_ioctl(struct file *filp, |
| 919 | unsigned int cmd, unsigned long arg); |
Thomas Hellstrom | 4beb6d9 | 2014-02-26 15:51:57 +0100 | [diff] [blame] | 920 | extern bool drm_ioctl_flags(unsigned int nr, unsigned int *flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 921 | |
| 922 | /* Device support (drm_fops.h) */ |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 923 | extern int drm_open(struct inode *inode, struct file *filp); |
Kristian Høgsberg | c9a9c5e | 2009-09-12 04:33:34 +1000 | [diff] [blame] | 924 | extern ssize_t drm_read(struct file *filp, char __user *buffer, |
| 925 | size_t count, loff_t *offset); |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 926 | extern int drm_release(struct inode *inode, struct file *filp); |
Thomas Hellstrom | a0af2e5 | 2015-12-02 09:24:46 -0800 | [diff] [blame] | 927 | extern int drm_new_set_master(struct drm_device *dev, struct drm_file *fpriv); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 928 | |
| 929 | /* Mapping support (drm_vm.h) */ |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 930 | extern unsigned int drm_poll(struct file *filp, struct poll_table_struct *wait); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 931 | |
Daniel Vetter | 7823875 | 2014-09-10 12:43:55 +0200 | [diff] [blame] | 932 | /* Misc. IOCTL support (drm_ioctl.c) */ |
| 933 | int drm_noop(struct drm_device *dev, void *data, |
| 934 | struct drm_file *file_priv); |
Daniel Vetter | 4b63539 | 2015-09-08 13:56:26 +0200 | [diff] [blame] | 935 | int drm_invalid_op(struct drm_device *dev, void *data, |
| 936 | struct drm_file *file_priv); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 937 | |
Eric Anholt | 673a394 | 2008-07-30 12:06:12 -0700 | [diff] [blame] | 938 | /* Cache management (drm_cache.c) */ |
| 939 | void drm_clflush_pages(struct page *pages[], unsigned long num_pages); |
Chris Wilson | 9da3da6 | 2012-06-01 15:20:22 +0100 | [diff] [blame] | 940 | void drm_clflush_sg(struct sg_table *st); |
Ville Syrjälä | c2d1535 | 2014-04-01 12:59:08 +0300 | [diff] [blame] | 941 | void drm_clflush_virt_range(void *addr, unsigned long length); |
Eric Anholt | 673a394 | 2008-07-30 12:06:12 -0700 | [diff] [blame] | 942 | |
Thomas Hellstrom | 040ac32 | 2007-03-23 13:28:33 +1100 | [diff] [blame] | 943 | /* |
| 944 | * These are exported to drivers so that they can implement fencing using |
| 945 | * DMA quiscent + idle. DMA quiescent usually requires the hardware lock. |
| 946 | */ |
| 947 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 948 | /* IRQ support (drm_irq.h) */ |
Daniel Vetter | bb0f1b5 | 2013-11-03 21:09:27 +0100 | [diff] [blame] | 949 | extern int drm_irq_install(struct drm_device *dev, int irq); |
Dave Airlie | 84b1fd1 | 2007-07-11 15:53:27 +1000 | [diff] [blame] | 950 | extern int drm_irq_uninstall(struct drm_device *dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 951 | |
Thierry Reding | cc1ef11 | 2015-08-12 17:00:31 +0200 | [diff] [blame] | 952 | extern int drm_vblank_init(struct drm_device *dev, unsigned int num_crtcs); |
Dave Airlie | af6061a | 2008-05-07 12:15:39 +1000 | [diff] [blame] | 953 | extern int drm_wait_vblank(struct drm_device *dev, void *data, |
Jesse Barnes | 0a3e67a | 2008-09-30 12:14:26 -0700 | [diff] [blame] | 954 | struct drm_file *filp); |
Thierry Reding | 88e7271 | 2015-09-24 18:35:31 +0200 | [diff] [blame] | 955 | extern u32 drm_vblank_count(struct drm_device *dev, unsigned int pipe); |
Thierry Reding | 96d3f91 | 2014-12-16 13:08:47 +0100 | [diff] [blame] | 956 | extern u32 drm_crtc_vblank_count(struct drm_crtc *crtc); |
Thierry Reding | cc1ef11 | 2015-08-12 17:00:31 +0200 | [diff] [blame] | 957 | extern u32 drm_vblank_count_and_time(struct drm_device *dev, unsigned int pipe, |
Mario Kleiner | 27641c3 | 2010-10-23 04:20:23 +0200 | [diff] [blame] | 958 | struct timeval *vblanktime); |
Thierry Reding | cf64830 | 2015-09-24 18:35:36 +0200 | [diff] [blame] | 959 | extern u32 drm_crtc_vblank_count_and_time(struct drm_crtc *crtc, |
| 960 | struct timeval *vblanktime); |
Thierry Reding | cc1ef11 | 2015-08-12 17:00:31 +0200 | [diff] [blame] | 961 | extern void drm_send_vblank_event(struct drm_device *dev, unsigned int pipe, |
| 962 | struct drm_pending_vblank_event *e); |
Thierry Reding | a4d7b30 | 2014-12-15 14:47:18 +0100 | [diff] [blame] | 963 | extern void drm_crtc_send_vblank_event(struct drm_crtc *crtc, |
| 964 | struct drm_pending_vblank_event *e); |
Daniel Vetter | bbc8764 | 2015-11-10 17:37:31 +0100 | [diff] [blame] | 965 | extern void drm_arm_vblank_event(struct drm_device *dev, unsigned int pipe, |
| 966 | struct drm_pending_vblank_event *e); |
| 967 | extern void drm_crtc_arm_vblank_event(struct drm_crtc *crtc, |
| 968 | struct drm_pending_vblank_event *e); |
Thierry Reding | cc1ef11 | 2015-08-12 17:00:31 +0200 | [diff] [blame] | 969 | extern bool drm_handle_vblank(struct drm_device *dev, unsigned int pipe); |
Thierry Reding | 115ebcd | 2014-12-15 14:47:18 +0100 | [diff] [blame] | 970 | extern bool drm_crtc_handle_vblank(struct drm_crtc *crtc); |
Thierry Reding | cc1ef11 | 2015-08-12 17:00:31 +0200 | [diff] [blame] | 971 | extern int drm_vblank_get(struct drm_device *dev, unsigned int pipe); |
| 972 | extern void drm_vblank_put(struct drm_device *dev, unsigned int pipe); |
Daniel Vetter | 89dd6a4 | 2014-05-15 15:32:12 +0200 | [diff] [blame] | 973 | extern int drm_crtc_vblank_get(struct drm_crtc *crtc); |
| 974 | extern void drm_crtc_vblank_put(struct drm_crtc *crtc); |
Thierry Reding | cc1ef11 | 2015-08-12 17:00:31 +0200 | [diff] [blame] | 975 | extern void drm_wait_one_vblank(struct drm_device *dev, unsigned int pipe); |
Daniel Vetter | e8450f5 | 2014-07-25 23:34:03 +0200 | [diff] [blame] | 976 | extern void drm_crtc_wait_one_vblank(struct drm_crtc *crtc); |
Thierry Reding | cc1ef11 | 2015-08-12 17:00:31 +0200 | [diff] [blame] | 977 | extern void drm_vblank_off(struct drm_device *dev, unsigned int pipe); |
| 978 | extern void drm_vblank_on(struct drm_device *dev, unsigned int pipe); |
Daniel Vetter | 89dd6a4 | 2014-05-15 15:32:12 +0200 | [diff] [blame] | 979 | extern void drm_crtc_vblank_off(struct drm_crtc *crtc); |
Daniel Vetter | 9625604 | 2015-02-13 21:03:42 +0100 | [diff] [blame] | 980 | extern void drm_crtc_vblank_reset(struct drm_crtc *crtc); |
Daniel Vetter | 89dd6a4 | 2014-05-15 15:32:12 +0200 | [diff] [blame] | 981 | extern void drm_crtc_vblank_on(struct drm_crtc *crtc); |
Keith Packard | 5244021 | 2008-11-18 09:30:25 -0800 | [diff] [blame] | 982 | extern void drm_vblank_cleanup(struct drm_device *dev); |
Ville Syrjälä | b44f840 | 2015-09-30 16:46:48 +0300 | [diff] [blame] | 983 | extern u32 drm_vblank_no_hw_counter(struct drm_device *dev, unsigned int pipe); |
Daniel Vetter | 89dd6a4 | 2014-05-15 15:32:12 +0200 | [diff] [blame] | 984 | |
Mario Kleiner | 27641c3 | 2010-10-23 04:20:23 +0200 | [diff] [blame] | 985 | extern int drm_calc_vbltimestamp_from_scanoutpos(struct drm_device *dev, |
Thierry Reding | cc1ef11 | 2015-08-12 17:00:31 +0200 | [diff] [blame] | 986 | unsigned int pipe, int *max_error, |
Mario Kleiner | 27641c3 | 2010-10-23 04:20:23 +0200 | [diff] [blame] | 987 | struct timeval *vblank_time, |
| 988 | unsigned flags, |
Ville Syrjälä | 7da903e | 2013-10-26 17:57:31 +0300 | [diff] [blame] | 989 | const struct drm_display_mode *mode); |
Ville Syrjälä | 545cdd5 | 2013-10-26 17:16:30 +0300 | [diff] [blame] | 990 | extern void drm_calc_timestamping_constants(struct drm_crtc *crtc, |
| 991 | const struct drm_display_mode *mode); |
Mario Kleiner | 27641c3 | 2010-10-23 04:20:23 +0200 | [diff] [blame] | 992 | |
Ville Syrjälä | 020178a | 2014-05-22 19:36:03 +0300 | [diff] [blame] | 993 | /** |
| 994 | * drm_crtc_vblank_waitqueue - get vblank waitqueue for the CRTC |
| 995 | * @crtc: which CRTC's vblank waitqueue to retrieve |
| 996 | * |
| 997 | * This function returns a pointer to the vblank waitqueue for the CRTC. |
| 998 | * Drivers can use this to implement vblank waits using wait_event() & co. |
| 999 | */ |
| 1000 | static inline wait_queue_head_t *drm_crtc_vblank_waitqueue(struct drm_crtc *crtc) |
| 1001 | { |
| 1002 | return &crtc->dev->vblank[drm_crtc_index(crtc)].queue; |
| 1003 | } |
Steffen Trumtrar | ebc64e4 | 2012-11-14 11:22:52 +0100 | [diff] [blame] | 1004 | |
Jesse Barnes | 0a3e67a | 2008-09-30 12:14:26 -0700 | [diff] [blame] | 1005 | /* Modesetting support */ |
Thierry Reding | cc1ef11 | 2015-08-12 17:00:31 +0200 | [diff] [blame] | 1006 | extern void drm_vblank_pre_modeset(struct drm_device *dev, unsigned int pipe); |
| 1007 | extern void drm_vblank_post_modeset(struct drm_device *dev, unsigned int pipe); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1008 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1009 | /* Stub support (drm_stub.h) */ |
Dave Airlie | 7c1c287 | 2008-11-28 14:22:24 +1000 | [diff] [blame] | 1010 | extern struct drm_master *drm_master_get(struct drm_master *master); |
| 1011 | extern void drm_master_put(struct drm_master **master); |
Dave Airlie | 8410ea3 | 2010-12-15 03:16:38 +1000 | [diff] [blame] | 1012 | |
Kristian Høgsberg | 112b715 | 2009-01-04 16:55:33 -0500 | [diff] [blame] | 1013 | extern void drm_put_dev(struct drm_device *dev); |
Dave Airlie | 2c07a21 | 2012-02-20 14:18:07 +0000 | [diff] [blame] | 1014 | extern void drm_unplug_dev(struct drm_device *dev); |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 1015 | extern unsigned int drm_debug; |
Rob Clark | 88a48e2 | 2014-12-18 16:01:50 -0500 | [diff] [blame] | 1016 | extern bool drm_atomic; |
Dave Airlie | 2c14f28 | 2008-04-21 16:47:32 +1000 | [diff] [blame] | 1017 | |
Ben Gamari | 955b12d | 2009-02-17 20:08:49 -0500 | [diff] [blame] | 1018 | /* Debugfs support */ |
| 1019 | #if defined(CONFIG_DEBUG_FS) |
Lespiau, Damien | 7d74795 | 2013-10-17 19:09:53 +0100 | [diff] [blame] | 1020 | extern int drm_debugfs_create_files(const struct drm_info_list *files, |
| 1021 | int count, struct dentry *root, |
| 1022 | struct drm_minor *minor); |
| 1023 | extern int drm_debugfs_remove_files(const struct drm_info_list *files, |
| 1024 | int count, struct drm_minor *minor); |
Thierry Reding | 66ee52e | 2013-12-12 15:44:04 +0100 | [diff] [blame] | 1025 | #else |
Thierry Reding | 66ee52e | 2013-12-12 15:44:04 +0100 | [diff] [blame] | 1026 | static inline int drm_debugfs_create_files(const struct drm_info_list *files, |
| 1027 | int count, struct dentry *root, |
| 1028 | struct drm_minor *minor) |
| 1029 | { |
| 1030 | return 0; |
| 1031 | } |
| 1032 | |
| 1033 | static inline int drm_debugfs_remove_files(const struct drm_info_list *files, |
| 1034 | int count, struct drm_minor *minor) |
| 1035 | { |
| 1036 | return 0; |
| 1037 | } |
Ben Gamari | 955b12d | 2009-02-17 20:08:49 -0500 | [diff] [blame] | 1038 | #endif |
| 1039 | |
Aaron Plattner | 8917764 | 2013-01-15 20:47:42 +0000 | [diff] [blame] | 1040 | extern struct dma_buf *drm_gem_prime_export(struct drm_device *dev, |
| 1041 | struct drm_gem_object *obj, int flags); |
Dave Airlie | 3248877 | 2011-11-25 15:21:02 +0000 | [diff] [blame] | 1042 | extern int drm_gem_prime_handle_to_fd(struct drm_device *dev, |
| 1043 | struct drm_file *file_priv, uint32_t handle, uint32_t flags, |
| 1044 | int *prime_fd); |
Aaron Plattner | 8917764 | 2013-01-15 20:47:42 +0000 | [diff] [blame] | 1045 | extern struct drm_gem_object *drm_gem_prime_import(struct drm_device *dev, |
| 1046 | struct dma_buf *dma_buf); |
Dave Airlie | 3248877 | 2011-11-25 15:21:02 +0000 | [diff] [blame] | 1047 | extern int drm_gem_prime_fd_to_handle(struct drm_device *dev, |
| 1048 | struct drm_file *file_priv, int prime_fd, uint32_t *handle); |
Daniel Vetter | c1d6798 | 2013-08-15 00:02:30 +0200 | [diff] [blame] | 1049 | extern void drm_gem_dmabuf_release(struct dma_buf *dma_buf); |
Dave Airlie | 3248877 | 2011-11-25 15:21:02 +0000 | [diff] [blame] | 1050 | |
Dave Airlie | 51ab7ba | 2012-05-18 15:40:33 +0100 | [diff] [blame] | 1051 | extern int drm_prime_sg_to_page_addr_arrays(struct sg_table *sgt, struct page **pages, |
| 1052 | dma_addr_t *addrs, int max_pages); |
Thierry Reding | 34eab43 | 2014-06-04 09:18:29 +0200 | [diff] [blame] | 1053 | extern struct sg_table *drm_prime_pages_to_sg(struct page **pages, unsigned int nr_pages); |
Dave Airlie | 3248877 | 2011-11-25 15:21:02 +0000 | [diff] [blame] | 1054 | extern void drm_prime_gem_destroy(struct drm_gem_object *obj, struct sg_table *sg); |
| 1055 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1056 | |
Daniel Vetter | ba8286f | 2014-09-11 07:43:25 +0200 | [diff] [blame] | 1057 | extern struct drm_dma_handle *drm_pci_alloc(struct drm_device *dev, size_t size, |
| 1058 | size_t align); |
| 1059 | extern void drm_pci_free(struct drm_device *dev, struct drm_dma_handle * dmah); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1060 | |
| 1061 | /* sysfs support (drm_sysfs.c) */ |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 1062 | extern void drm_sysfs_hotplug_event(struct drm_device *dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1063 | |
Eric Anholt | 673a394 | 2008-07-30 12:06:12 -0700 | [diff] [blame] | 1064 | |
David Herrmann | 1bb7253 | 2013-10-02 11:23:34 +0200 | [diff] [blame] | 1065 | struct drm_device *drm_dev_alloc(struct drm_driver *driver, |
| 1066 | struct device *parent); |
David Herrmann | 099d1c2 | 2014-01-29 10:21:36 +0100 | [diff] [blame] | 1067 | void drm_dev_ref(struct drm_device *dev); |
| 1068 | void drm_dev_unref(struct drm_device *dev); |
David Herrmann | c22f0ac | 2013-10-02 11:23:35 +0200 | [diff] [blame] | 1069 | int drm_dev_register(struct drm_device *dev, unsigned long flags); |
David Herrmann | c3a4973 | 2013-10-02 11:23:38 +0200 | [diff] [blame] | 1070 | void drm_dev_unregister(struct drm_device *dev); |
Nicolas Iooss | 399368aa | 2015-12-11 11:20:27 +0100 | [diff] [blame^] | 1071 | int drm_dev_set_unique(struct drm_device *dev, const char *name); |
David Herrmann | 1616c52 | 2014-01-29 10:49:19 +0100 | [diff] [blame] | 1072 | |
| 1073 | struct drm_minor *drm_minor_acquire(unsigned int minor_id); |
| 1074 | void drm_minor_release(struct drm_minor *minor); |
| 1075 | |
Dave Airlie | 8410ea3 | 2010-12-15 03:16:38 +1000 | [diff] [blame] | 1076 | /*@}*/ |
| 1077 | |
| 1078 | /* PCI section */ |
| 1079 | static __inline__ int drm_pci_device_is_agp(struct drm_device *dev) |
| 1080 | { |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 1081 | if (dev->driver->device_is_agp != NULL) { |
| 1082 | int err = (*dev->driver->device_is_agp) (dev); |
| 1083 | |
Dave Airlie | cda1738 | 2005-07-10 17:31:26 +1000 | [diff] [blame] | 1084 | if (err != 2) { |
| 1085 | return err; |
| 1086 | } |
| 1087 | } |
| 1088 | |
| 1089 | return pci_find_capability(dev->pdev, PCI_CAP_ID_AGP); |
| 1090 | } |
Daniel Vetter | 4efafeb | 2013-12-11 11:34:38 +0100 | [diff] [blame] | 1091 | void drm_pci_agp_destroy(struct drm_device *dev); |
Dave Airlie | cda1738 | 2005-07-10 17:31:26 +1000 | [diff] [blame] | 1092 | |
Dave Airlie | 8410ea3 | 2010-12-15 03:16:38 +1000 | [diff] [blame] | 1093 | extern int drm_pci_init(struct drm_driver *driver, struct pci_driver *pdriver); |
| 1094 | extern void drm_pci_exit(struct drm_driver *driver, struct pci_driver *pdriver); |
Thierry Reding | a9e3c90 | 2014-08-05 13:37:47 +0200 | [diff] [blame] | 1095 | #ifdef CONFIG_PCI |
Dave Airlie | 8410ea3 | 2010-12-15 03:16:38 +1000 | [diff] [blame] | 1096 | extern int drm_get_pci_dev(struct pci_dev *pdev, |
Jordan Crouse | dcdb167 | 2010-05-27 13:40:25 -0600 | [diff] [blame] | 1097 | const struct pci_device_id *ent, |
| 1098 | struct drm_driver *driver); |
David Herrmann | 915b4d1 | 2014-08-29 12:12:43 +0200 | [diff] [blame] | 1099 | extern int drm_pci_set_busid(struct drm_device *dev, struct drm_master *master); |
Thierry Reding | a9e3c90 | 2014-08-05 13:37:47 +0200 | [diff] [blame] | 1100 | #else |
| 1101 | static inline int drm_get_pci_dev(struct pci_dev *pdev, |
| 1102 | const struct pci_device_id *ent, |
| 1103 | struct drm_driver *driver) |
| 1104 | { |
| 1105 | return -ENOSYS; |
| 1106 | } |
| 1107 | |
| 1108 | static inline int drm_pci_set_busid(struct drm_device *dev, |
| 1109 | struct drm_master *master) |
| 1110 | { |
| 1111 | return -ENOSYS; |
| 1112 | } |
| 1113 | #endif |
Dave Airlie | 8410ea3 | 2010-12-15 03:16:38 +1000 | [diff] [blame] | 1114 | |
Dave Airlie | f429778 | 2012-06-27 08:35:53 +0100 | [diff] [blame] | 1115 | #define DRM_PCIE_SPEED_25 1 |
| 1116 | #define DRM_PCIE_SPEED_50 2 |
| 1117 | #define DRM_PCIE_SPEED_80 4 |
| 1118 | |
| 1119 | extern int drm_pcie_get_speed_cap_mask(struct drm_device *dev, u32 *speed_mask); |
Dave Airlie | 8410ea3 | 2010-12-15 03:16:38 +1000 | [diff] [blame] | 1120 | |
| 1121 | /* platform section */ |
| 1122 | extern int drm_platform_init(struct drm_driver *driver, struct platform_device *platform_device); |
David Herrmann | 915b4d1 | 2014-08-29 12:12:43 +0200 | [diff] [blame] | 1123 | extern int drm_platform_set_busid(struct drm_device *d, struct drm_master *m); |
Dave Airlie | 8410ea3 | 2010-12-15 03:16:38 +1000 | [diff] [blame] | 1124 | |
Dave Airlie | cc1f719 | 2012-01-05 09:55:22 +0000 | [diff] [blame] | 1125 | /* returns true if currently okay to sleep */ |
| 1126 | static __inline__ bool drm_can_sleep(void) |
| 1127 | { |
| 1128 | if (in_atomic() || in_dbg_master() || irqs_disabled()) |
| 1129 | return false; |
| 1130 | return true; |
| 1131 | } |
| 1132 | |
Jani Nikula | 373701b | 2015-11-24 21:21:55 +0200 | [diff] [blame] | 1133 | /* helper for handling conditionals in various for_each macros */ |
| 1134 | #define for_each_if(condition) if (!(condition)) {} else |
| 1135 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1136 | #endif |