Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 1 | /** |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2 | * \file xf86drm.c |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 3 | * User-level interface to DRM device |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 4 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 5 | * \author Rickard E. (Rik) Faith <faith@valinux.com> |
| 6 | * \author Kevin E. Martin <martin@valinux.com> |
| 7 | */ |
| 8 | |
| 9 | /* |
Brian Paul | 569da5a | 2000-06-08 14:38:22 +0000 | [diff] [blame] | 10 | * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. |
| 11 | * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 12 | * All Rights Reserved. |
| 13 | * |
| 14 | * Permission is hereby granted, free of charge, to any person obtaining a |
| 15 | * copy of this software and associated documentation files (the "Software"), |
| 16 | * to deal in the Software without restriction, including without limitation |
| 17 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| 18 | * and/or sell copies of the Software, and to permit persons to whom the |
| 19 | * Software is furnished to do so, subject to the following conditions: |
Gareth Hughes | 3604753 | 2001-02-15 08:12:14 +0000 | [diff] [blame] | 20 | * |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 21 | * The above copyright notice and this permission notice (including the next |
| 22 | * paragraph) shall be included in all copies or substantial portions of the |
| 23 | * Software. |
Gareth Hughes | 3604753 | 2001-02-15 08:12:14 +0000 | [diff] [blame] | 24 | * |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 25 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 26 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 27 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 28 | * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR |
| 29 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
| 30 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
| 31 | * DEALINGS IN THE SOFTWARE. |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 32 | */ |
| 33 | |
Dave Airlie | 7903875 | 2006-11-08 15:08:09 +1100 | [diff] [blame] | 34 | #ifdef HAVE_CONFIG_H |
| 35 | # include <config.h> |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 36 | #endif |
Dave Airlie | 7903875 | 2006-11-08 15:08:09 +1100 | [diff] [blame] | 37 | #include <stdio.h> |
| 38 | #include <stdlib.h> |
Emil Velikov | fae59d7 | 2015-09-09 17:54:34 +0100 | [diff] [blame] | 39 | #include <stdbool.h> |
Dave Airlie | 7903875 | 2006-11-08 15:08:09 +1100 | [diff] [blame] | 40 | #include <unistd.h> |
| 41 | #include <string.h> |
Ian Romanick | 015efd1 | 2009-07-06 09:23:59 -0700 | [diff] [blame] | 42 | #include <strings.h> |
Dave Airlie | 7903875 | 2006-11-08 15:08:09 +1100 | [diff] [blame] | 43 | #include <ctype.h> |
Emil Velikov | 0ca03a4 | 2015-03-07 00:58:39 +0000 | [diff] [blame] | 44 | #include <dirent.h> |
| 45 | #include <stddef.h> |
Dave Airlie | 7903875 | 2006-11-08 15:08:09 +1100 | [diff] [blame] | 46 | #include <fcntl.h> |
| 47 | #include <errno.h> |
Felix Janda | 4031dc1 | 2015-09-26 08:08:43 +0200 | [diff] [blame] | 48 | #include <limits.h> |
Dave Airlie | 7903875 | 2006-11-08 15:08:09 +1100 | [diff] [blame] | 49 | #include <signal.h> |
Jesse Barnes | f4f76a6 | 2009-01-07 10:18:08 -0800 | [diff] [blame] | 50 | #include <time.h> |
Dave Airlie | 7903875 | 2006-11-08 15:08:09 +1100 | [diff] [blame] | 51 | #include <sys/types.h> |
| 52 | #include <sys/stat.h> |
| 53 | #define stat_t struct stat |
| 54 | #include <sys/ioctl.h> |
Dave Airlie | 7903875 | 2006-11-08 15:08:09 +1100 | [diff] [blame] | 55 | #include <sys/time.h> |
| 56 | #include <stdarg.h> |
Mike Frysinger | 8c8d5dd | 2016-06-21 12:18:15 -0400 | [diff] [blame] | 57 | #ifdef MAJOR_IN_MKDEV |
| 58 | #include <sys/mkdev.h> |
| 59 | #endif |
| 60 | #ifdef MAJOR_IN_SYSMACROS |
| 61 | #include <sys/sysmacros.h> |
Alan Coopersmith | 0e1135d | 2015-03-07 11:44:32 -0800 | [diff] [blame] | 62 | #endif |
Emil Velikov | b556ea1 | 2015-08-17 11:09:06 +0800 | [diff] [blame] | 63 | #include <math.h> |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 64 | |
| 65 | /* Not all systems have MAP_FAILED defined */ |
| 66 | #ifndef MAP_FAILED |
| 67 | #define MAP_FAILED ((void *)-1) |
| 68 | #endif |
| 69 | |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 70 | #include "xf86drm.h" |
Emil Velikov | 42465fe | 2015-04-05 15:51:59 +0100 | [diff] [blame] | 71 | #include "libdrm_macros.h" |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 72 | |
Emil Velikov | 5f68d31 | 2015-09-07 13:54:32 +0100 | [diff] [blame] | 73 | #include "util_math.h" |
| 74 | |
Jonathan Gray | fc08332 | 2015-07-21 03:12:56 +1000 | [diff] [blame] | 75 | #ifdef __OpenBSD__ |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 76 | #define DRM_PRIMARY_MINOR_NAME "drm" |
| 77 | #define DRM_CONTROL_MINOR_NAME "drmC" |
| 78 | #define DRM_RENDER_MINOR_NAME "drmR" |
Jonathan Gray | fc08332 | 2015-07-21 03:12:56 +1000 | [diff] [blame] | 79 | #else |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 80 | #define DRM_PRIMARY_MINOR_NAME "card" |
| 81 | #define DRM_CONTROL_MINOR_NAME "controlD" |
| 82 | #define DRM_RENDER_MINOR_NAME "renderD" |
Jonathan Gray | fc08332 | 2015-07-21 03:12:56 +1000 | [diff] [blame] | 83 | #endif |
| 84 | |
Hasso Tepper | 27c3785 | 2008-04-07 15:27:43 +0300 | [diff] [blame] | 85 | #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__) |
Eric Anholt | cfa778a | 2003-02-21 23:23:09 +0000 | [diff] [blame] | 86 | #define DRM_MAJOR 145 |
Rik Faith | 88dbee5 | 2001-02-28 09:27:44 +0000 | [diff] [blame] | 87 | #endif |
| 88 | |
Eric Anholt | cfa778a | 2003-02-21 23:23:09 +0000 | [diff] [blame] | 89 | #ifdef __NetBSD__ |
| 90 | #define DRM_MAJOR 34 |
| 91 | #endif |
| 92 | |
Jonathan Gray | 66c3afb | 2015-07-21 03:12:10 +1000 | [diff] [blame] | 93 | #ifdef __OpenBSD__ |
| 94 | #ifdef __i386__ |
| 95 | #define DRM_MAJOR 88 |
| 96 | #else |
| 97 | #define DRM_MAJOR 87 |
| 98 | #endif |
| 99 | #endif /* __OpenBSD__ */ |
Alan Hourihane | b0a9285 | 2003-09-24 14:39:25 +0000 | [diff] [blame] | 100 | |
Eric Anholt | cfa778a | 2003-02-21 23:23:09 +0000 | [diff] [blame] | 101 | #ifndef DRM_MAJOR |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 102 | #define DRM_MAJOR 226 /* Linux */ |
Rik Faith | 88dbee5 | 2001-02-28 09:27:44 +0000 | [diff] [blame] | 103 | #endif |
| 104 | |
Jonathan Gray | c0ef1d0 | 2016-12-01 15:18:41 +1100 | [diff] [blame] | 105 | #ifdef __OpenBSD__ |
| 106 | struct drm_pciinfo { |
| 107 | uint16_t domain; |
| 108 | uint8_t bus; |
| 109 | uint8_t dev; |
| 110 | uint8_t func; |
| 111 | uint16_t vendor_id; |
| 112 | uint16_t device_id; |
| 113 | uint16_t subvendor_id; |
| 114 | uint16_t subdevice_id; |
| 115 | uint8_t revision_id; |
| 116 | }; |
| 117 | |
| 118 | #define DRM_IOCTL_GET_PCIINFO DRM_IOR(0x15, struct drm_pciinfo) |
| 119 | #endif |
| 120 | |
David Dawes | 56bd9c2 | 2001-07-30 19:59:39 +0000 | [diff] [blame] | 121 | #define DRM_MSG_VERBOSITY 3 |
| 122 | |
Daniel Vetter | fd38794 | 2015-02-11 12:41:04 +0100 | [diff] [blame] | 123 | #define memclear(s) memset(&s, 0, sizeof(s)) |
| 124 | |
Dave Airlie | 7903875 | 2006-11-08 15:08:09 +1100 | [diff] [blame] | 125 | static drmServerInfoPtr drm_server_info; |
| 126 | |
| 127 | void drmSetServerInfo(drmServerInfoPtr info) |
| 128 | { |
Brian | ccd7b6e | 2007-05-29 14:54:00 -0600 | [diff] [blame] | 129 | drm_server_info = info; |
Dave Airlie | 7903875 | 2006-11-08 15:08:09 +1100 | [diff] [blame] | 130 | } |
| 131 | |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 132 | /** |
| 133 | * Output a message to stderr. |
| 134 | * |
| 135 | * \param format printf() like format string. |
| 136 | * |
| 137 | * \internal |
| 138 | * This function is a wrapper around vfprintf(). |
| 139 | */ |
Dave Airlie | 7903875 | 2006-11-08 15:08:09 +1100 | [diff] [blame] | 140 | |
Thierry Reding | 44b08c0 | 2014-01-22 12:06:51 +0100 | [diff] [blame] | 141 | static int DRM_PRINTFLIKE(1, 0) |
| 142 | drmDebugPrint(const char *format, va_list ap) |
Dave Airlie | 7903875 | 2006-11-08 15:08:09 +1100 | [diff] [blame] | 143 | { |
Brian | ccd7b6e | 2007-05-29 14:54:00 -0600 | [diff] [blame] | 144 | return vfprintf(stderr, format, ap); |
Dave Airlie | 7903875 | 2006-11-08 15:08:09 +1100 | [diff] [blame] | 145 | } |
| 146 | |
Eric Anholt | c485742 | 2008-06-03 10:20:49 -0700 | [diff] [blame] | 147 | void |
David Dawes | 56bd9c2 | 2001-07-30 19:59:39 +0000 | [diff] [blame] | 148 | drmMsg(const char *format, ...) |
| 149 | { |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 150 | va_list ap; |
David Dawes | 56bd9c2 | 2001-07-30 19:59:39 +0000 | [diff] [blame] | 151 | const char *env; |
Rob Clark | eb7c2d5 | 2015-09-04 08:08:02 -0400 | [diff] [blame] | 152 | if (((env = getenv("LIBGL_DEBUG")) && strstr(env, "verbose")) || |
| 153 | (drm_server_info && drm_server_info->debug_print)) |
David Dawes | 56bd9c2 | 2001-07-30 19:59:39 +0000 | [diff] [blame] | 154 | { |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 155 | va_start(ap, format); |
| 156 | if (drm_server_info) { |
| 157 | drm_server_info->debug_print(format,ap); |
| 158 | } else { |
| 159 | drmDebugPrint(format, ap); |
| 160 | } |
| 161 | va_end(ap); |
David Dawes | 56bd9c2 | 2001-07-30 19:59:39 +0000 | [diff] [blame] | 162 | } |
| 163 | } |
| 164 | |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 165 | static void *drmHashTable = NULL; /* Context switch callbacks */ |
| 166 | |
Dave Airlie | 7903875 | 2006-11-08 15:08:09 +1100 | [diff] [blame] | 167 | void *drmGetHashTable(void) |
| 168 | { |
Brian | ccd7b6e | 2007-05-29 14:54:00 -0600 | [diff] [blame] | 169 | return drmHashTable; |
Dave Airlie | 7903875 | 2006-11-08 15:08:09 +1100 | [diff] [blame] | 170 | } |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 171 | |
| 172 | void *drmMalloc(int size) |
| 173 | { |
Emil Velikov | d0e592d | 2015-04-28 13:33:46 +0100 | [diff] [blame] | 174 | return calloc(1, size); |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 175 | } |
| 176 | |
| 177 | void drmFree(void *pt) |
| 178 | { |
Emil Velikov | d0e592d | 2015-04-28 13:33:46 +0100 | [diff] [blame] | 179 | free(pt); |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 180 | } |
| 181 | |
Keith Packard | 8b9ab10 | 2008-06-13 16:03:22 -0700 | [diff] [blame] | 182 | /** |
| 183 | * Call ioctl, restarting if it is interupted |
| 184 | */ |
Jesse Barnes | 731cd55 | 2008-12-17 10:09:49 -0800 | [diff] [blame] | 185 | int |
Coleman Kane | 41b83a9 | 2008-08-18 17:08:21 -0400 | [diff] [blame] | 186 | drmIoctl(int fd, unsigned long request, void *arg) |
Keith Packard | 8b9ab10 | 2008-06-13 16:03:22 -0700 | [diff] [blame] | 187 | { |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 188 | int ret; |
Keith Packard | 8b9ab10 | 2008-06-13 16:03:22 -0700 | [diff] [blame] | 189 | |
| 190 | do { |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 191 | ret = ioctl(fd, request, arg); |
Keith Packard | 8b9ab10 | 2008-06-13 16:03:22 -0700 | [diff] [blame] | 192 | } while (ret == -1 && (errno == EINTR || errno == EAGAIN)); |
| 193 | return ret; |
| 194 | } |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 195 | |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 196 | static unsigned long drmGetKeyFromFd(int fd) |
| 197 | { |
David Dawes | fcc2106 | 2001-03-30 17:16:20 +0000 | [diff] [blame] | 198 | stat_t st; |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 199 | |
| 200 | st.st_rdev = 0; |
| 201 | fstat(fd, &st); |
| 202 | return st.st_rdev; |
| 203 | } |
| 204 | |
Dave Airlie | 7903875 | 2006-11-08 15:08:09 +1100 | [diff] [blame] | 205 | drmHashEntry *drmGetEntry(int fd) |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 206 | { |
| 207 | unsigned long key = drmGetKeyFromFd(fd); |
| 208 | void *value; |
| 209 | drmHashEntry *entry; |
| 210 | |
Brian | ccd7b6e | 2007-05-29 14:54:00 -0600 | [diff] [blame] | 211 | if (!drmHashTable) |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 212 | drmHashTable = drmHashCreate(); |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 213 | |
| 214 | if (drmHashLookup(drmHashTable, key, &value)) { |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 215 | entry = drmMalloc(sizeof(*entry)); |
| 216 | entry->fd = fd; |
| 217 | entry->f = NULL; |
| 218 | entry->tagTable = drmHashCreate(); |
| 219 | drmHashInsert(drmHashTable, key, entry); |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 220 | } else { |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 221 | entry = value; |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 222 | } |
| 223 | return entry; |
| 224 | } |
| 225 | |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 226 | /** |
Eric Anholt | 06cb132 | 2003-10-23 02:23:31 +0000 | [diff] [blame] | 227 | * Compare two busid strings |
| 228 | * |
| 229 | * \param first |
| 230 | * \param second |
| 231 | * |
| 232 | * \return 1 if matched. |
| 233 | * |
| 234 | * \internal |
| 235 | * This function compares two bus ID strings. It understands the older |
| 236 | * PCI:b:d:f format and the newer pci:oooo:bb:dd.f format. In the format, o is |
| 237 | * domain, b is bus, d is device, f is function. |
| 238 | */ |
Benjamin Herrenschmidt | b04515c | 2010-08-06 13:55:11 +1000 | [diff] [blame] | 239 | static int drmMatchBusID(const char *id1, const char *id2, int pci_domain_ok) |
Eric Anholt | 06cb132 | 2003-10-23 02:23:31 +0000 | [diff] [blame] | 240 | { |
| 241 | /* First, check if the IDs are exactly the same */ |
| 242 | if (strcasecmp(id1, id2) == 0) |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 243 | return 1; |
Eric Anholt | 06cb132 | 2003-10-23 02:23:31 +0000 | [diff] [blame] | 244 | |
| 245 | /* Try to match old/new-style PCI bus IDs. */ |
| 246 | if (strncasecmp(id1, "pci", 3) == 0) { |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 247 | unsigned int o1, b1, d1, f1; |
| 248 | unsigned int o2, b2, d2, f2; |
| 249 | int ret; |
Eric Anholt | 06cb132 | 2003-10-23 02:23:31 +0000 | [diff] [blame] | 250 | |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 251 | ret = sscanf(id1, "pci:%04x:%02x:%02x.%u", &o1, &b1, &d1, &f1); |
| 252 | if (ret != 4) { |
| 253 | o1 = 0; |
| 254 | ret = sscanf(id1, "PCI:%u:%u:%u", &b1, &d1, &f1); |
| 255 | if (ret != 3) |
| 256 | return 0; |
| 257 | } |
Eric Anholt | 06cb132 | 2003-10-23 02:23:31 +0000 | [diff] [blame] | 258 | |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 259 | ret = sscanf(id2, "pci:%04x:%02x:%02x.%u", &o2, &b2, &d2, &f2); |
| 260 | if (ret != 4) { |
| 261 | o2 = 0; |
| 262 | ret = sscanf(id2, "PCI:%u:%u:%u", &b2, &d2, &f2); |
| 263 | if (ret != 3) |
| 264 | return 0; |
| 265 | } |
Eric Anholt | 06cb132 | 2003-10-23 02:23:31 +0000 | [diff] [blame] | 266 | |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 267 | /* If domains aren't properly supported by the kernel interface, |
| 268 | * just ignore them, which sucks less than picking a totally random |
| 269 | * card with "open by name" |
| 270 | */ |
| 271 | if (!pci_domain_ok) |
| 272 | o1 = o2 = 0; |
Benjamin Herrenschmidt | b04515c | 2010-08-06 13:55:11 +1000 | [diff] [blame] | 273 | |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 274 | if ((o1 != o2) || (b1 != b2) || (d1 != d2) || (f1 != f2)) |
| 275 | return 0; |
| 276 | else |
| 277 | return 1; |
Eric Anholt | 06cb132 | 2003-10-23 02:23:31 +0000 | [diff] [blame] | 278 | } |
| 279 | return 0; |
| 280 | } |
| 281 | |
| 282 | /** |
Pauli Nieminen | c5a5bbb | 2009-07-06 23:37:20 +0300 | [diff] [blame] | 283 | * Handles error checking for chown call. |
| 284 | * |
| 285 | * \param path to file. |
| 286 | * \param id of the new owner. |
| 287 | * \param id of the new group. |
| 288 | * |
| 289 | * \return zero if success or -1 if failure. |
| 290 | * |
| 291 | * \internal |
| 292 | * Checks for failure. If failure was caused by signal call chown again. |
| 293 | * If any other failure happened then it will output error mesage using |
| 294 | * drmMsg() call. |
| 295 | */ |
Jan Vesely | 6fc0e4b | 2015-02-27 12:54:34 -0500 | [diff] [blame] | 296 | #if !defined(UDEV) |
Pauli Nieminen | c5a5bbb | 2009-07-06 23:37:20 +0300 | [diff] [blame] | 297 | static int chown_check_return(const char *path, uid_t owner, gid_t group) |
| 298 | { |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 299 | int rv; |
Pauli Nieminen | c5a5bbb | 2009-07-06 23:37:20 +0300 | [diff] [blame] | 300 | |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 301 | do { |
| 302 | rv = chown(path, owner, group); |
| 303 | } while (rv != 0 && errno == EINTR); |
Pauli Nieminen | c5a5bbb | 2009-07-06 23:37:20 +0300 | [diff] [blame] | 304 | |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 305 | if (rv == 0) |
| 306 | return 0; |
Pauli Nieminen | c5a5bbb | 2009-07-06 23:37:20 +0300 | [diff] [blame] | 307 | |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 308 | drmMsg("Failed to change owner or group for file %s! %d: %s\n", |
| 309 | path, errno, strerror(errno)); |
| 310 | return -1; |
Pauli Nieminen | c5a5bbb | 2009-07-06 23:37:20 +0300 | [diff] [blame] | 311 | } |
Jan Vesely | 6fc0e4b | 2015-02-27 12:54:34 -0500 | [diff] [blame] | 312 | #endif |
Pauli Nieminen | c5a5bbb | 2009-07-06 23:37:20 +0300 | [diff] [blame] | 313 | |
| 314 | /** |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 315 | * Open the DRM device, creating it if necessary. |
| 316 | * |
| 317 | * \param dev major and minor numbers of the device. |
| 318 | * \param minor minor number of the device. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 319 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 320 | * \return a file descriptor on success, or a negative value on error. |
| 321 | * |
| 322 | * \internal |
| 323 | * Assembles the device name from \p minor and opens it, creating the device |
| 324 | * special file node with the major and minor numbers specified by \p dev and |
| 325 | * parent directory if necessary and was called by root. |
| 326 | */ |
Jan Vesely | de8532d | 2014-11-30 12:53:18 -0500 | [diff] [blame] | 327 | static int drmOpenDevice(dev_t dev, int minor, int type) |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 328 | { |
David Dawes | 9c775d0 | 2001-05-14 14:49:58 +0000 | [diff] [blame] | 329 | stat_t st; |
Frank Binns | 0c5aaee | 2015-01-14 14:07:51 +0000 | [diff] [blame] | 330 | const char *dev_name; |
Rik Faith | 88dbee5 | 2001-02-28 09:27:44 +0000 | [diff] [blame] | 331 | char buf[64]; |
| 332 | int fd; |
Dave Airlie | 7903875 | 2006-11-08 15:08:09 +1100 | [diff] [blame] | 333 | mode_t devmode = DRM_DEV_MODE, serv_mode; |
Jan Vesely | 0706c14 | 2015-02-27 12:47:46 -0500 | [diff] [blame] | 334 | gid_t serv_group; |
| 335 | #if !defined(UDEV) |
Rik Faith | 88dbee5 | 2001-02-28 09:27:44 +0000 | [diff] [blame] | 336 | int isroot = !geteuid(); |
Rik Faith | 88dbee5 | 2001-02-28 09:27:44 +0000 | [diff] [blame] | 337 | uid_t user = DRM_DEV_UID; |
Jan Vesely | 0706c14 | 2015-02-27 12:47:46 -0500 | [diff] [blame] | 338 | gid_t group = DRM_DEV_GID; |
| 339 | #endif |
| 340 | |
Frank Binns | 0c5aaee | 2015-01-14 14:07:51 +0000 | [diff] [blame] | 341 | switch (type) { |
| 342 | case DRM_NODE_PRIMARY: |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 343 | dev_name = DRM_DEV_NAME; |
| 344 | break; |
Frank Binns | 0c5aaee | 2015-01-14 14:07:51 +0000 | [diff] [blame] | 345 | case DRM_NODE_CONTROL: |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 346 | dev_name = DRM_CONTROL_DEV_NAME; |
| 347 | break; |
Frank Binns | 0c5aaee | 2015-01-14 14:07:51 +0000 | [diff] [blame] | 348 | case DRM_NODE_RENDER: |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 349 | dev_name = DRM_RENDER_DEV_NAME; |
| 350 | break; |
Frank Binns | 0c5aaee | 2015-01-14 14:07:51 +0000 | [diff] [blame] | 351 | default: |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 352 | return -EINVAL; |
Frank Binns | 0c5aaee | 2015-01-14 14:07:51 +0000 | [diff] [blame] | 353 | }; |
| 354 | |
| 355 | sprintf(buf, dev_name, DRM_DIR_NAME, minor); |
Eric Anholt | 06cb132 | 2003-10-23 02:23:31 +0000 | [diff] [blame] | 356 | drmMsg("drmOpenDevice: node name is %s\n", buf); |
David Dawes | 56bd9c2 | 2001-07-30 19:59:39 +0000 | [diff] [blame] | 357 | |
Rob Clark | eb7c2d5 | 2015-09-04 08:08:02 -0400 | [diff] [blame] | 358 | if (drm_server_info && drm_server_info->get_perms) { |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 359 | drm_server_info->get_perms(&serv_group, &serv_mode); |
| 360 | devmode = serv_mode ? serv_mode : DRM_DEV_MODE; |
| 361 | devmode &= ~(S_IXUSR|S_IXGRP|S_IXOTH); |
Dave Airlie | 7903875 | 2006-11-08 15:08:09 +1100 | [diff] [blame] | 362 | } |
Brian Paul | 569da5a | 2000-06-08 14:38:22 +0000 | [diff] [blame] | 363 | |
Dave Airlie | 9101a02 | 2008-08-24 16:54:43 +1000 | [diff] [blame] | 364 | #if !defined(UDEV) |
Rik Faith | 88dbee5 | 2001-02-28 09:27:44 +0000 | [diff] [blame] | 365 | if (stat(DRM_DIR_NAME, &st)) { |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 366 | if (!isroot) |
| 367 | return DRM_ERR_NOT_ROOT; |
| 368 | mkdir(DRM_DIR_NAME, DRM_DEV_DIRMODE); |
| 369 | chown_check_return(DRM_DIR_NAME, 0, 0); /* root:root */ |
| 370 | chmod(DRM_DIR_NAME, DRM_DEV_DIRMODE); |
Brian Paul | 569da5a | 2000-06-08 14:38:22 +0000 | [diff] [blame] | 371 | } |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 372 | |
Eric Anholt | 06cb132 | 2003-10-23 02:23:31 +0000 | [diff] [blame] | 373 | /* Check if the device node exists and create it if necessary. */ |
Eric Anholt | d2f2b42 | 2002-08-08 21:23:46 +0000 | [diff] [blame] | 374 | if (stat(buf, &st)) { |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 375 | if (!isroot) |
| 376 | return DRM_ERR_NOT_ROOT; |
| 377 | remove(buf); |
| 378 | mknod(buf, S_IFCHR | devmode, dev); |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 379 | } |
Dave Airlie | 7903875 | 2006-11-08 15:08:09 +1100 | [diff] [blame] | 380 | |
Rob Clark | eb7c2d5 | 2015-09-04 08:08:02 -0400 | [diff] [blame] | 381 | if (drm_server_info && drm_server_info->get_perms) { |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 382 | group = ((int)serv_group >= 0) ? serv_group : DRM_DEV_GID; |
| 383 | chown_check_return(buf, user, group); |
| 384 | chmod(buf, devmode); |
Dave Airlie | 7903875 | 2006-11-08 15:08:09 +1100 | [diff] [blame] | 385 | } |
Dave Airlie | 9101a02 | 2008-08-24 16:54:43 +1000 | [diff] [blame] | 386 | #else |
| 387 | /* if we modprobed then wait for udev */ |
| 388 | { |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 389 | int udev_count = 0; |
Dave Airlie | 9101a02 | 2008-08-24 16:54:43 +1000 | [diff] [blame] | 390 | wait_for_udev: |
| 391 | if (stat(DRM_DIR_NAME, &st)) { |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 392 | usleep(20); |
| 393 | udev_count++; |
Dave Airlie | 9101a02 | 2008-08-24 16:54:43 +1000 | [diff] [blame] | 394 | |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 395 | if (udev_count == 50) |
| 396 | return -1; |
| 397 | goto wait_for_udev; |
| 398 | } |
Dave Airlie | 9101a02 | 2008-08-24 16:54:43 +1000 | [diff] [blame] | 399 | |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 400 | if (stat(buf, &st)) { |
| 401 | usleep(20); |
| 402 | udev_count++; |
Dave Airlie | 9101a02 | 2008-08-24 16:54:43 +1000 | [diff] [blame] | 403 | |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 404 | if (udev_count == 50) |
| 405 | return -1; |
| 406 | goto wait_for_udev; |
| 407 | } |
Dave Airlie | 9101a02 | 2008-08-24 16:54:43 +1000 | [diff] [blame] | 408 | } |
| 409 | #endif |
Rik Faith | 88dbee5 | 2001-02-28 09:27:44 +0000 | [diff] [blame] | 410 | |
David Dawes | 56bd9c2 | 2001-07-30 19:59:39 +0000 | [diff] [blame] | 411 | fd = open(buf, O_RDWR, 0); |
| 412 | drmMsg("drmOpenDevice: open result is %d, (%s)\n", |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 413 | fd, fd < 0 ? strerror(errno) : "OK"); |
Brian | ccd7b6e | 2007-05-29 14:54:00 -0600 | [diff] [blame] | 414 | if (fd >= 0) |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 415 | return fd; |
Eric Anholt | d2f2b42 | 2002-08-08 21:23:46 +0000 | [diff] [blame] | 416 | |
Dave Airlie | 39e5e98 | 2010-12-07 14:26:09 +1000 | [diff] [blame] | 417 | #if !defined(UDEV) |
Eric Anholt | 06cb132 | 2003-10-23 02:23:31 +0000 | [diff] [blame] | 418 | /* Check if the device node is not what we expect it to be, and recreate it |
| 419 | * and try again if so. |
| 420 | */ |
Eric Anholt | d2f2b42 | 2002-08-08 21:23:46 +0000 | [diff] [blame] | 421 | if (st.st_rdev != dev) { |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 422 | if (!isroot) |
| 423 | return DRM_ERR_NOT_ROOT; |
| 424 | remove(buf); |
| 425 | mknod(buf, S_IFCHR | devmode, dev); |
| 426 | if (drm_server_info && drm_server_info->get_perms) { |
| 427 | chown_check_return(buf, user, group); |
| 428 | chmod(buf, devmode); |
| 429 | } |
Eric Anholt | d2f2b42 | 2002-08-08 21:23:46 +0000 | [diff] [blame] | 430 | } |
| 431 | fd = open(buf, O_RDWR, 0); |
| 432 | drmMsg("drmOpenDevice: open result is %d, (%s)\n", |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 433 | fd, fd < 0 ? strerror(errno) : "OK"); |
Brian | ccd7b6e | 2007-05-29 14:54:00 -0600 | [diff] [blame] | 434 | if (fd >= 0) |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 435 | return fd; |
Eric Anholt | d2f2b42 | 2002-08-08 21:23:46 +0000 | [diff] [blame] | 436 | |
David Dawes | 56bd9c2 | 2001-07-30 19:59:39 +0000 | [diff] [blame] | 437 | drmMsg("drmOpenDevice: Open failed\n"); |
Rik Faith | 88dbee5 | 2001-02-28 09:27:44 +0000 | [diff] [blame] | 438 | remove(buf); |
Dave Airlie | 39e5e98 | 2010-12-07 14:26:09 +1000 | [diff] [blame] | 439 | #endif |
Rik Faith | 88dbee5 | 2001-02-28 09:27:44 +0000 | [diff] [blame] | 440 | return -errno; |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 441 | } |
| 442 | |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 443 | |
| 444 | /** |
| 445 | * Open the DRM device |
| 446 | * |
| 447 | * \param minor device minor number. |
| 448 | * \param create allow to create the device if set. |
| 449 | * |
| 450 | * \return a file descriptor on success, or a negative value on error. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 451 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 452 | * \internal |
| 453 | * Calls drmOpenDevice() if \p create is set, otherwise assembles the device |
| 454 | * name from \p minor and opens it. |
| 455 | */ |
Jesse Barnes | 731cd55 | 2008-12-17 10:09:49 -0800 | [diff] [blame] | 456 | static int drmOpenMinor(int minor, int create, int type) |
Rik Faith | 88dbee5 | 2001-02-28 09:27:44 +0000 | [diff] [blame] | 457 | { |
| 458 | int fd; |
| 459 | char buf[64]; |
Frank Binns | 0c5aaee | 2015-01-14 14:07:51 +0000 | [diff] [blame] | 460 | const char *dev_name; |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 461 | |
Brian | ccd7b6e | 2007-05-29 14:54:00 -0600 | [diff] [blame] | 462 | if (create) |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 463 | return drmOpenDevice(makedev(DRM_MAJOR, minor), minor, type); |
| 464 | |
Frank Binns | 0c5aaee | 2015-01-14 14:07:51 +0000 | [diff] [blame] | 465 | switch (type) { |
| 466 | case DRM_NODE_PRIMARY: |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 467 | dev_name = DRM_DEV_NAME; |
| 468 | break; |
Frank Binns | 0c5aaee | 2015-01-14 14:07:51 +0000 | [diff] [blame] | 469 | case DRM_NODE_CONTROL: |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 470 | dev_name = DRM_CONTROL_DEV_NAME; |
| 471 | break; |
Frank Binns | 0c5aaee | 2015-01-14 14:07:51 +0000 | [diff] [blame] | 472 | case DRM_NODE_RENDER: |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 473 | dev_name = DRM_RENDER_DEV_NAME; |
| 474 | break; |
Frank Binns | 0c5aaee | 2015-01-14 14:07:51 +0000 | [diff] [blame] | 475 | default: |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 476 | return -EINVAL; |
Frank Binns | 0c5aaee | 2015-01-14 14:07:51 +0000 | [diff] [blame] | 477 | }; |
| 478 | |
| 479 | sprintf(buf, dev_name, DRM_DIR_NAME, minor); |
Brian | ccd7b6e | 2007-05-29 14:54:00 -0600 | [diff] [blame] | 480 | if ((fd = open(buf, O_RDWR, 0)) >= 0) |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 481 | return fd; |
Rik Faith | 88dbee5 | 2001-02-28 09:27:44 +0000 | [diff] [blame] | 482 | return -errno; |
| 483 | } |
| 484 | |
Brian Paul | 569da5a | 2000-06-08 14:38:22 +0000 | [diff] [blame] | 485 | |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 486 | /** |
| 487 | * Determine whether the DRM kernel driver has been loaded. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 488 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 489 | * \return 1 if the DRM driver is loaded, 0 otherwise. |
| 490 | * |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 491 | * \internal |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 492 | * Determine the presence of the kernel driver by attempting to open the 0 |
| 493 | * minor and get version information. For backward compatibility with older |
| 494 | * Linux implementations, /proc/dri is also checked. |
| 495 | */ |
Brian Paul | 569da5a | 2000-06-08 14:38:22 +0000 | [diff] [blame] | 496 | int drmAvailable(void) |
| 497 | { |
Brian Paul | 569da5a | 2000-06-08 14:38:22 +0000 | [diff] [blame] | 498 | drmVersionPtr version; |
| 499 | int retval = 0; |
| 500 | int fd; |
Gareth Hughes | 3604753 | 2001-02-15 08:12:14 +0000 | [diff] [blame] | 501 | |
Frank Binns | ad8bbfd | 2015-01-14 14:07:50 +0000 | [diff] [blame] | 502 | if ((fd = drmOpenMinor(0, 1, DRM_NODE_PRIMARY)) < 0) { |
Alan Hourihane | b0a9285 | 2003-09-24 14:39:25 +0000 | [diff] [blame] | 503 | #ifdef __linux__ |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 504 | /* Try proc for backward Linux compatibility */ |
| 505 | if (!access("/proc/dri/0", R_OK)) |
| 506 | return 1; |
Alan Hourihane | b0a9285 | 2003-09-24 14:39:25 +0000 | [diff] [blame] | 507 | #endif |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 508 | return 0; |
Brian Paul | 569da5a | 2000-06-08 14:38:22 +0000 | [diff] [blame] | 509 | } |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 510 | |
Rik Faith | 88dbee5 | 2001-02-28 09:27:44 +0000 | [diff] [blame] | 511 | if ((version = drmGetVersion(fd))) { |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 512 | retval = 1; |
| 513 | drmFreeVersion(version); |
Rik Faith | 88dbee5 | 2001-02-28 09:27:44 +0000 | [diff] [blame] | 514 | } |
| 515 | close(fd); |
Brian Paul | 569da5a | 2000-06-08 14:38:22 +0000 | [diff] [blame] | 516 | |
| 517 | return retval; |
| 518 | } |
| 519 | |
Jammy Zhou | f1adc4b | 2015-02-11 12:40:51 +0800 | [diff] [blame] | 520 | static int drmGetMinorBase(int type) |
| 521 | { |
| 522 | switch (type) { |
| 523 | case DRM_NODE_PRIMARY: |
| 524 | return 0; |
| 525 | case DRM_NODE_CONTROL: |
| 526 | return 64; |
| 527 | case DRM_NODE_RENDER: |
| 528 | return 128; |
| 529 | default: |
| 530 | return -1; |
| 531 | }; |
| 532 | } |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 533 | |
Frank Binns | 1f73578 | 2015-02-13 10:51:15 +0000 | [diff] [blame] | 534 | static int drmGetMinorType(int minor) |
| 535 | { |
| 536 | int type = minor >> 6; |
| 537 | |
| 538 | if (minor < 0) |
| 539 | return -1; |
| 540 | |
| 541 | switch (type) { |
| 542 | case DRM_NODE_PRIMARY: |
| 543 | case DRM_NODE_CONTROL: |
| 544 | case DRM_NODE_RENDER: |
| 545 | return type; |
| 546 | default: |
| 547 | return -1; |
| 548 | } |
| 549 | } |
| 550 | |
Emil Velikov | 0ca03a4 | 2015-03-07 00:58:39 +0000 | [diff] [blame] | 551 | static const char *drmGetMinorName(int type) |
| 552 | { |
| 553 | switch (type) { |
| 554 | case DRM_NODE_PRIMARY: |
Jonathan Gray | fc08332 | 2015-07-21 03:12:56 +1000 | [diff] [blame] | 555 | return DRM_PRIMARY_MINOR_NAME; |
Emil Velikov | 0ca03a4 | 2015-03-07 00:58:39 +0000 | [diff] [blame] | 556 | case DRM_NODE_CONTROL: |
Jonathan Gray | fc08332 | 2015-07-21 03:12:56 +1000 | [diff] [blame] | 557 | return DRM_CONTROL_MINOR_NAME; |
Emil Velikov | 0ca03a4 | 2015-03-07 00:58:39 +0000 | [diff] [blame] | 558 | case DRM_NODE_RENDER: |
Jonathan Gray | fc08332 | 2015-07-21 03:12:56 +1000 | [diff] [blame] | 559 | return DRM_RENDER_MINOR_NAME; |
Emil Velikov | 0ca03a4 | 2015-03-07 00:58:39 +0000 | [diff] [blame] | 560 | default: |
| 561 | return NULL; |
| 562 | } |
| 563 | } |
| 564 | |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 565 | /** |
| 566 | * Open the device by bus ID. |
| 567 | * |
| 568 | * \param busid bus ID. |
Jammy Zhou | f1adc4b | 2015-02-11 12:40:51 +0800 | [diff] [blame] | 569 | * \param type device node type. |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 570 | * |
| 571 | * \return a file descriptor on success, or a negative value on error. |
| 572 | * |
| 573 | * \internal |
| 574 | * This function attempts to open every possible minor (up to DRM_MAX_MINOR), |
| 575 | * comparing the device bus ID with the one supplied. |
| 576 | * |
| 577 | * \sa drmOpenMinor() and drmGetBusid(). |
| 578 | */ |
Jammy Zhou | f1adc4b | 2015-02-11 12:40:51 +0800 | [diff] [blame] | 579 | static int drmOpenByBusid(const char *busid, int type) |
Daryll Strauss | e1dba5c | 1999-12-07 03:37:16 +0000 | [diff] [blame] | 580 | { |
Benjamin Herrenschmidt | b04515c | 2010-08-06 13:55:11 +1000 | [diff] [blame] | 581 | int i, pci_domain_ok = 1; |
Rik Faith | 88dbee5 | 2001-02-28 09:27:44 +0000 | [diff] [blame] | 582 | int fd; |
| 583 | const char *buf; |
Eric Anholt | 06cb132 | 2003-10-23 02:23:31 +0000 | [diff] [blame] | 584 | drmSetVersion sv; |
Jammy Zhou | f1adc4b | 2015-02-11 12:40:51 +0800 | [diff] [blame] | 585 | int base = drmGetMinorBase(type); |
| 586 | |
| 587 | if (base < 0) |
| 588 | return -1; |
Eric Anholt | 06cb132 | 2003-10-23 02:23:31 +0000 | [diff] [blame] | 589 | |
| 590 | drmMsg("drmOpenByBusid: Searching for BusID %s\n", busid); |
Jammy Zhou | f1adc4b | 2015-02-11 12:40:51 +0800 | [diff] [blame] | 591 | for (i = base; i < base + DRM_MAX_MINOR; i++) { |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 592 | fd = drmOpenMinor(i, 1, type); |
| 593 | drmMsg("drmOpenByBusid: drmOpenMinor returns %d\n", fd); |
| 594 | if (fd >= 0) { |
| 595 | /* We need to try for 1.4 first for proper PCI domain support |
| 596 | * and if that fails, we know the kernel is busted |
| 597 | */ |
| 598 | sv.drm_di_major = 1; |
| 599 | sv.drm_di_minor = 4; |
| 600 | sv.drm_dd_major = -1; /* Don't care */ |
| 601 | sv.drm_dd_minor = -1; /* Don't care */ |
| 602 | if (drmSetInterfaceVersion(fd, &sv)) { |
Benjamin Herrenschmidt | b04515c | 2010-08-06 13:55:11 +1000 | [diff] [blame] | 603 | #ifndef __alpha__ |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 604 | pci_domain_ok = 0; |
Benjamin Herrenschmidt | b04515c | 2010-08-06 13:55:11 +1000 | [diff] [blame] | 605 | #endif |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 606 | sv.drm_di_major = 1; |
| 607 | sv.drm_di_minor = 1; |
| 608 | sv.drm_dd_major = -1; /* Don't care */ |
| 609 | sv.drm_dd_minor = -1; /* Don't care */ |
| 610 | drmMsg("drmOpenByBusid: Interface 1.4 failed, trying 1.1\n"); |
| 611 | drmSetInterfaceVersion(fd, &sv); |
| 612 | } |
| 613 | buf = drmGetBusid(fd); |
| 614 | drmMsg("drmOpenByBusid: drmGetBusid reports %s\n", buf); |
| 615 | if (buf && drmMatchBusID(buf, busid, pci_domain_ok)) { |
| 616 | drmFreeBusid(buf); |
| 617 | return fd; |
| 618 | } |
| 619 | if (buf) |
| 620 | drmFreeBusid(buf); |
| 621 | close(fd); |
| 622 | } |
Daryll Strauss | e1dba5c | 1999-12-07 03:37:16 +0000 | [diff] [blame] | 623 | } |
| 624 | return -1; |
| 625 | } |
| 626 | |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 627 | |
| 628 | /** |
| 629 | * Open the device by name. |
| 630 | * |
| 631 | * \param name driver name. |
Jammy Zhou | f1adc4b | 2015-02-11 12:40:51 +0800 | [diff] [blame] | 632 | * \param type the device node type. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 633 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 634 | * \return a file descriptor on success, or a negative value on error. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 635 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 636 | * \internal |
| 637 | * This function opens the first minor number that matches the driver name and |
| 638 | * isn't already in use. If it's in use it then it will already have a bus ID |
| 639 | * assigned. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 640 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 641 | * \sa drmOpenMinor(), drmGetVersion() and drmGetBusid(). |
| 642 | */ |
Jammy Zhou | f1adc4b | 2015-02-11 12:40:51 +0800 | [diff] [blame] | 643 | static int drmOpenByName(const char *name, int type) |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 644 | { |
Rik Faith | 88dbee5 | 2001-02-28 09:27:44 +0000 | [diff] [blame] | 645 | int i; |
| 646 | int fd; |
| 647 | drmVersionPtr version; |
David Dawes | 56bd9c2 | 2001-07-30 19:59:39 +0000 | [diff] [blame] | 648 | char * id; |
Jammy Zhou | f1adc4b | 2015-02-11 12:40:51 +0800 | [diff] [blame] | 649 | int base = drmGetMinorBase(type); |
| 650 | |
| 651 | if (base < 0) |
| 652 | return -1; |
Dave Airlie | db85ed2 | 2008-02-13 12:20:02 +1000 | [diff] [blame] | 653 | |
David Dawes | 56bd9c2 | 2001-07-30 19:59:39 +0000 | [diff] [blame] | 654 | /* |
| 655 | * Open the first minor number that matches the driver name and isn't |
| 656 | * already in use. If it's in use it will have a busid assigned already. |
| 657 | */ |
Jammy Zhou | f1adc4b | 2015-02-11 12:40:51 +0800 | [diff] [blame] | 658 | for (i = base; i < base + DRM_MAX_MINOR; i++) { |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 659 | if ((fd = drmOpenMinor(i, 1, type)) >= 0) { |
| 660 | if ((version = drmGetVersion(fd))) { |
| 661 | if (!strcmp(version->name, name)) { |
| 662 | drmFreeVersion(version); |
| 663 | id = drmGetBusid(fd); |
| 664 | drmMsg("drmGetBusid returned '%s'\n", id ? id : "NULL"); |
| 665 | if (!id || !*id) { |
| 666 | if (id) |
| 667 | drmFreeBusid(id); |
| 668 | return fd; |
| 669 | } else { |
| 670 | drmFreeBusid(id); |
| 671 | } |
| 672 | } else { |
| 673 | drmFreeVersion(version); |
| 674 | } |
| 675 | } |
| 676 | close(fd); |
| 677 | } |
Rik Faith | 88dbee5 | 2001-02-28 09:27:44 +0000 | [diff] [blame] | 678 | } |
| 679 | |
| 680 | #ifdef __linux__ |
Adam Jackson | 22e41ef | 2006-02-20 23:09:00 +0000 | [diff] [blame] | 681 | /* Backward-compatibility /proc support */ |
Daryll Strauss | b6a28bf | 1999-12-05 23:10:37 +0000 | [diff] [blame] | 682 | for (i = 0; i < 8; i++) { |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 683 | char proc_name[64], buf[512]; |
| 684 | char *driver, *pt, *devstring; |
| 685 | int retcode; |
| 686 | |
| 687 | sprintf(proc_name, "/proc/dri/%d/name", i); |
| 688 | if ((fd = open(proc_name, 0, 0)) >= 0) { |
| 689 | retcode = read(fd, buf, sizeof(buf)-1); |
| 690 | close(fd); |
| 691 | if (retcode) { |
| 692 | buf[retcode-1] = '\0'; |
| 693 | for (driver = pt = buf; *pt && *pt != ' '; ++pt) |
| 694 | ; |
| 695 | if (*pt) { /* Device is next */ |
| 696 | *pt = '\0'; |
| 697 | if (!strcmp(driver, name)) { /* Match */ |
| 698 | for (devstring = ++pt; *pt && *pt != ' '; ++pt) |
| 699 | ; |
| 700 | if (*pt) { /* Found busid */ |
| 701 | return drmOpenByBusid(++pt, type); |
| 702 | } else { /* No busid */ |
| 703 | return drmOpenDevice(strtol(devstring, NULL, 0),i, type); |
| 704 | } |
| 705 | } |
| 706 | } |
| 707 | } |
| 708 | } |
Daryll Strauss | b6a28bf | 1999-12-05 23:10:37 +0000 | [diff] [blame] | 709 | } |
Rik Faith | 88dbee5 | 2001-02-28 09:27:44 +0000 | [diff] [blame] | 710 | #endif |
| 711 | |
Daryll Strauss | b6a28bf | 1999-12-05 23:10:37 +0000 | [diff] [blame] | 712 | return -1; |
| 713 | } |
| 714 | |
Daryll Strauss | b6a28bf | 1999-12-05 23:10:37 +0000 | [diff] [blame] | 715 | |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 716 | /** |
| 717 | * Open the DRM device. |
| 718 | * |
| 719 | * Looks up the specified name and bus ID, and opens the device found. The |
| 720 | * entry in /dev/dri is created if necessary and if called by root. |
| 721 | * |
| 722 | * \param name driver name. Not referenced if bus ID is supplied. |
| 723 | * \param busid bus ID. Zero if not known. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 724 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 725 | * \return a file descriptor on success, or a negative value on error. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 726 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 727 | * \internal |
| 728 | * It calls drmOpenByBusid() if \p busid is specified or drmOpenByName() |
| 729 | * otherwise. |
| 730 | */ |
Daryll Strauss | b6a28bf | 1999-12-05 23:10:37 +0000 | [diff] [blame] | 731 | int drmOpen(const char *name, const char *busid) |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 732 | { |
Jammy Zhou | f1adc4b | 2015-02-11 12:40:51 +0800 | [diff] [blame] | 733 | return drmOpenWithType(name, busid, DRM_NODE_PRIMARY); |
| 734 | } |
| 735 | |
| 736 | /** |
| 737 | * Open the DRM device with specified type. |
| 738 | * |
| 739 | * Looks up the specified name and bus ID, and opens the device found. The |
| 740 | * entry in /dev/dri is created if necessary and if called by root. |
| 741 | * |
| 742 | * \param name driver name. Not referenced if bus ID is supplied. |
| 743 | * \param busid bus ID. Zero if not known. |
| 744 | * \param type the device node type to open, PRIMARY, CONTROL or RENDER |
| 745 | * |
| 746 | * \return a file descriptor on success, or a negative value on error. |
| 747 | * |
| 748 | * \internal |
| 749 | * It calls drmOpenByBusid() if \p busid is specified or drmOpenByName() |
| 750 | * otherwise. |
| 751 | */ |
| 752 | int drmOpenWithType(const char *name, const char *busid, int type) |
| 753 | { |
Rob Clark | eb7c2d5 | 2015-09-04 08:08:02 -0400 | [diff] [blame] | 754 | if (!drmAvailable() && name != NULL && drm_server_info && |
| 755 | drm_server_info->load_module) { |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 756 | /* try to load the kernel module */ |
| 757 | if (!drm_server_info->load_module(name)) { |
| 758 | drmMsg("[drm] failed to load kernel module \"%s\"\n", name); |
| 759 | return -1; |
| 760 | } |
Eric Anholt | 06cb132 | 2003-10-23 02:23:31 +0000 | [diff] [blame] | 761 | } |
Daryll Strauss | b6a28bf | 1999-12-05 23:10:37 +0000 | [diff] [blame] | 762 | |
Eric Anholt | 06cb132 | 2003-10-23 02:23:31 +0000 | [diff] [blame] | 763 | if (busid) { |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 764 | int fd = drmOpenByBusid(busid, type); |
| 765 | if (fd >= 0) |
| 766 | return fd; |
Eric Anholt | 06cb132 | 2003-10-23 02:23:31 +0000 | [diff] [blame] | 767 | } |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 768 | |
Eric Anholt | 06cb132 | 2003-10-23 02:23:31 +0000 | [diff] [blame] | 769 | if (name) |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 770 | return drmOpenByName(name, type); |
Adam Jackson | 22e41ef | 2006-02-20 23:09:00 +0000 | [diff] [blame] | 771 | |
Eric Anholt | 06cb132 | 2003-10-23 02:23:31 +0000 | [diff] [blame] | 772 | return -1; |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 773 | } |
| 774 | |
Jesse Barnes | 731cd55 | 2008-12-17 10:09:49 -0800 | [diff] [blame] | 775 | int drmOpenControl(int minor) |
| 776 | { |
| 777 | return drmOpenMinor(minor, 0, DRM_NODE_CONTROL); |
| 778 | } |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 779 | |
Frank Binns | 0c5aaee | 2015-01-14 14:07:51 +0000 | [diff] [blame] | 780 | int drmOpenRender(int minor) |
| 781 | { |
| 782 | return drmOpenMinor(minor, 0, DRM_NODE_RENDER); |
| 783 | } |
| 784 | |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 785 | /** |
| 786 | * Free the version information returned by drmGetVersion(). |
| 787 | * |
| 788 | * \param v pointer to the version information. |
| 789 | * |
| 790 | * \internal |
| 791 | * It frees the memory pointed by \p %v as well as all the non-null strings |
| 792 | * pointers in it. |
| 793 | */ |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 794 | void drmFreeVersion(drmVersionPtr v) |
| 795 | { |
Brian | ccd7b6e | 2007-05-29 14:54:00 -0600 | [diff] [blame] | 796 | if (!v) |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 797 | return; |
Jakob Bornecrantz | 9d8ba2d | 2007-02-25 10:48:26 +1100 | [diff] [blame] | 798 | drmFree(v->name); |
| 799 | drmFree(v->date); |
| 800 | drmFree(v->desc); |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 801 | drmFree(v); |
| 802 | } |
| 803 | |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 804 | |
| 805 | /** |
| 806 | * Free the non-public version information returned by the kernel. |
| 807 | * |
| 808 | * \param v pointer to the version information. |
| 809 | * |
| 810 | * \internal |
| 811 | * Used by drmGetVersion() to free the memory pointed by \p %v as well as all |
| 812 | * the non-null strings pointers in it. |
| 813 | */ |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 814 | static void drmFreeKernelVersion(drm_version_t *v) |
| 815 | { |
Brian | ccd7b6e | 2007-05-29 14:54:00 -0600 | [diff] [blame] | 816 | if (!v) |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 817 | return; |
Jakob Bornecrantz | 9d8ba2d | 2007-02-25 10:48:26 +1100 | [diff] [blame] | 818 | drmFree(v->name); |
| 819 | drmFree(v->date); |
| 820 | drmFree(v->desc); |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 821 | drmFree(v); |
| 822 | } |
| 823 | |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 824 | |
| 825 | /** |
| 826 | * Copy version information. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 827 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 828 | * \param d destination pointer. |
| 829 | * \param s source pointer. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 830 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 831 | * \internal |
| 832 | * Used by drmGetVersion() to translate the information returned by the ioctl |
| 833 | * interface in a private structure into the public structure counterpart. |
| 834 | */ |
Brian Paul | 569da5a | 2000-06-08 14:38:22 +0000 | [diff] [blame] | 835 | static void drmCopyVersion(drmVersionPtr d, const drm_version_t *s) |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 836 | { |
| 837 | d->version_major = s->version_major; |
| 838 | d->version_minor = s->version_minor; |
| 839 | d->version_patchlevel = s->version_patchlevel; |
| 840 | d->name_len = s->name_len; |
Adam Jackson | 0a1ff35 | 2010-10-27 18:44:53 -0400 | [diff] [blame] | 841 | d->name = strdup(s->name); |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 842 | d->date_len = s->date_len; |
Adam Jackson | 0a1ff35 | 2010-10-27 18:44:53 -0400 | [diff] [blame] | 843 | d->date = strdup(s->date); |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 844 | d->desc_len = s->desc_len; |
Adam Jackson | 0a1ff35 | 2010-10-27 18:44:53 -0400 | [diff] [blame] | 845 | d->desc = strdup(s->desc); |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 846 | } |
| 847 | |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 848 | |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 849 | /** |
| 850 | * Query the driver version information. |
| 851 | * |
| 852 | * \param fd file descriptor. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 853 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 854 | * \return pointer to a drmVersion structure which should be freed with |
| 855 | * drmFreeVersion(). |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 856 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 857 | * \note Similar information is available via /proc/dri. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 858 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 859 | * \internal |
| 860 | * It gets the version information via successive DRM_IOCTL_VERSION ioctls, |
| 861 | * first with zeros to get the string lengths, and then the actually strings. |
| 862 | * It also null-terminates them since they might not be already. |
| 863 | */ |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 864 | drmVersionPtr drmGetVersion(int fd) |
| 865 | { |
| 866 | drmVersionPtr retval; |
| 867 | drm_version_t *version = drmMalloc(sizeof(*version)); |
| 868 | |
Keith Packard | 8b9ab10 | 2008-06-13 16:03:22 -0700 | [diff] [blame] | 869 | if (drmIoctl(fd, DRM_IOCTL_VERSION, version)) { |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 870 | drmFreeKernelVersion(version); |
| 871 | return NULL; |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 872 | } |
| 873 | |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 874 | if (version->name_len) |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 875 | version->name = drmMalloc(version->name_len + 1); |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 876 | if (version->date_len) |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 877 | version->date = drmMalloc(version->date_len + 1); |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 878 | if (version->desc_len) |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 879 | version->desc = drmMalloc(version->desc_len + 1); |
Gareth Hughes | 3604753 | 2001-02-15 08:12:14 +0000 | [diff] [blame] | 880 | |
Keith Packard | 8b9ab10 | 2008-06-13 16:03:22 -0700 | [diff] [blame] | 881 | if (drmIoctl(fd, DRM_IOCTL_VERSION, version)) { |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 882 | drmMsg("DRM_IOCTL_VERSION: %s\n", strerror(errno)); |
| 883 | drmFreeKernelVersion(version); |
| 884 | return NULL; |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 885 | } |
| 886 | |
Adam Jackson | 22e41ef | 2006-02-20 23:09:00 +0000 | [diff] [blame] | 887 | /* The results might not be null-terminated strings, so terminate them. */ |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 888 | if (version->name_len) version->name[version->name_len] = '\0'; |
| 889 | if (version->date_len) version->date[version->date_len] = '\0'; |
| 890 | if (version->desc_len) version->desc[version->desc_len] = '\0'; |
| 891 | |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 892 | retval = drmMalloc(sizeof(*retval)); |
| 893 | drmCopyVersion(retval, version); |
| 894 | drmFreeKernelVersion(version); |
| 895 | return retval; |
| 896 | } |
| 897 | |
Jens Owen | 3903e5a | 2002-04-09 21:54:56 +0000 | [diff] [blame] | 898 | |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 899 | /** |
| 900 | * Get version information for the DRM user space library. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 901 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 902 | * This version number is driver independent. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 903 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 904 | * \param fd file descriptor. |
| 905 | * |
| 906 | * \return version information. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 907 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 908 | * \internal |
| 909 | * This function allocates and fills a drm_version structure with a hard coded |
| 910 | * version number. |
| 911 | */ |
Jens Owen | 3903e5a | 2002-04-09 21:54:56 +0000 | [diff] [blame] | 912 | drmVersionPtr drmGetLibVersion(int fd) |
| 913 | { |
| 914 | drm_version_t *version = drmMalloc(sizeof(*version)); |
| 915 | |
| 916 | /* Version history: |
Dave Airlie | 7903875 | 2006-11-08 15:08:09 +1100 | [diff] [blame] | 917 | * NOTE THIS MUST NOT GO ABOVE VERSION 1.X due to drivers needing it |
Jens Owen | 3903e5a | 2002-04-09 21:54:56 +0000 | [diff] [blame] | 918 | * revision 1.0.x = original DRM interface with no drmGetLibVersion |
| 919 | * entry point and many drm<Device> extensions |
| 920 | * revision 1.1.x = added drmCommand entry points for device extensions |
| 921 | * added drmGetLibVersion to identify libdrm.a version |
Eric Anholt | 06cb132 | 2003-10-23 02:23:31 +0000 | [diff] [blame] | 922 | * revision 1.2.x = added drmSetInterfaceVersion |
| 923 | * modified drmOpen to handle both busid and name |
Dave Airlie | 7903875 | 2006-11-08 15:08:09 +1100 | [diff] [blame] | 924 | * revision 1.3.x = added server + memory manager |
Jens Owen | 3903e5a | 2002-04-09 21:54:56 +0000 | [diff] [blame] | 925 | */ |
Dave Airlie | 7903875 | 2006-11-08 15:08:09 +1100 | [diff] [blame] | 926 | version->version_major = 1; |
| 927 | version->version_minor = 3; |
Jens Owen | 3903e5a | 2002-04-09 21:54:56 +0000 | [diff] [blame] | 928 | version->version_patchlevel = 0; |
| 929 | |
| 930 | return (drmVersionPtr)version; |
| 931 | } |
| 932 | |
Ben Skeggs | 5c6c691 | 2011-02-21 11:27:19 +1000 | [diff] [blame] | 933 | int drmGetCap(int fd, uint64_t capability, uint64_t *value) |
| 934 | { |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 935 | struct drm_get_cap cap; |
| 936 | int ret; |
Ben Skeggs | 5c6c691 | 2011-02-21 11:27:19 +1000 | [diff] [blame] | 937 | |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 938 | memclear(cap); |
| 939 | cap.capability = capability; |
Daniel Vetter | fd38794 | 2015-02-11 12:41:04 +0100 | [diff] [blame] | 940 | |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 941 | ret = drmIoctl(fd, DRM_IOCTL_GET_CAP, &cap); |
| 942 | if (ret) |
| 943 | return ret; |
Ben Skeggs | 5c6c691 | 2011-02-21 11:27:19 +1000 | [diff] [blame] | 944 | |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 945 | *value = cap.value; |
| 946 | return 0; |
Ben Skeggs | 5c6c691 | 2011-02-21 11:27:19 +1000 | [diff] [blame] | 947 | } |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 948 | |
Damien Lespiau | ddbbdb1 | 2013-09-03 15:34:41 +0100 | [diff] [blame] | 949 | int drmSetClientCap(int fd, uint64_t capability, uint64_t value) |
| 950 | { |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 951 | struct drm_set_client_cap cap; |
Daniel Vetter | fd38794 | 2015-02-11 12:41:04 +0100 | [diff] [blame] | 952 | |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 953 | memclear(cap); |
| 954 | cap.capability = capability; |
| 955 | cap.value = value; |
Damien Lespiau | ddbbdb1 | 2013-09-03 15:34:41 +0100 | [diff] [blame] | 956 | |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 957 | return drmIoctl(fd, DRM_IOCTL_SET_CLIENT_CAP, &cap); |
Damien Lespiau | ddbbdb1 | 2013-09-03 15:34:41 +0100 | [diff] [blame] | 958 | } |
| 959 | |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 960 | /** |
| 961 | * Free the bus ID information. |
| 962 | * |
| 963 | * \param busid bus ID information string as given by drmGetBusid(). |
| 964 | * |
| 965 | * \internal |
| 966 | * This function is just frees the memory pointed by \p busid. |
| 967 | */ |
Daryll Strauss | b6a28bf | 1999-12-05 23:10:37 +0000 | [diff] [blame] | 968 | void drmFreeBusid(const char *busid) |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 969 | { |
Daryll Strauss | b6a28bf | 1999-12-05 23:10:37 +0000 | [diff] [blame] | 970 | drmFree((void *)busid); |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 971 | } |
| 972 | |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 973 | |
| 974 | /** |
| 975 | * Get the bus ID of the device. |
| 976 | * |
| 977 | * \param fd file descriptor. |
| 978 | * |
| 979 | * \return bus ID string. |
| 980 | * |
| 981 | * \internal |
| 982 | * This function gets the bus ID via successive DRM_IOCTL_GET_UNIQUE ioctls to |
| 983 | * get the string length and data, passing the arguments in a drm_unique |
| 984 | * structure. |
| 985 | */ |
Daryll Strauss | b6a28bf | 1999-12-05 23:10:37 +0000 | [diff] [blame] | 986 | char *drmGetBusid(int fd) |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 987 | { |
Daryll Strauss | b6a28bf | 1999-12-05 23:10:37 +0000 | [diff] [blame] | 988 | drm_unique_t u; |
| 989 | |
Daniel Vetter | fd38794 | 2015-02-11 12:41:04 +0100 | [diff] [blame] | 990 | memclear(u); |
Daryll Strauss | b6a28bf | 1999-12-05 23:10:37 +0000 | [diff] [blame] | 991 | |
Keith Packard | 8b9ab10 | 2008-06-13 16:03:22 -0700 | [diff] [blame] | 992 | if (drmIoctl(fd, DRM_IOCTL_GET_UNIQUE, &u)) |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 993 | return NULL; |
Daryll Strauss | b6a28bf | 1999-12-05 23:10:37 +0000 | [diff] [blame] | 994 | u.unique = drmMalloc(u.unique_len + 1); |
Seung-Woo Kim | 7b806e8 | 2017-03-27 11:09:29 +0900 | [diff] [blame] | 995 | if (drmIoctl(fd, DRM_IOCTL_GET_UNIQUE, &u)) { |
| 996 | drmFree(u.unique); |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 997 | return NULL; |
Seung-Woo Kim | 7b806e8 | 2017-03-27 11:09:29 +0900 | [diff] [blame] | 998 | } |
Daryll Strauss | b6a28bf | 1999-12-05 23:10:37 +0000 | [diff] [blame] | 999 | u.unique[u.unique_len] = '\0'; |
Eric Anholt | 06cb132 | 2003-10-23 02:23:31 +0000 | [diff] [blame] | 1000 | |
Daryll Strauss | b6a28bf | 1999-12-05 23:10:37 +0000 | [diff] [blame] | 1001 | return u.unique; |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1002 | } |
| 1003 | |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 1004 | |
| 1005 | /** |
| 1006 | * Set the bus ID of the device. |
| 1007 | * |
| 1008 | * \param fd file descriptor. |
| 1009 | * \param busid bus ID string. |
| 1010 | * |
| 1011 | * \return zero on success, negative on failure. |
| 1012 | * |
| 1013 | * \internal |
| 1014 | * This function is a wrapper around the DRM_IOCTL_SET_UNIQUE ioctl, passing |
| 1015 | * the arguments in a drm_unique structure. |
| 1016 | */ |
Daryll Strauss | b6a28bf | 1999-12-05 23:10:37 +0000 | [diff] [blame] | 1017 | int drmSetBusid(int fd, const char *busid) |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1018 | { |
Daryll Strauss | b6a28bf | 1999-12-05 23:10:37 +0000 | [diff] [blame] | 1019 | drm_unique_t u; |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1020 | |
Daniel Vetter | fd38794 | 2015-02-11 12:41:04 +0100 | [diff] [blame] | 1021 | memclear(u); |
Daryll Strauss | b6a28bf | 1999-12-05 23:10:37 +0000 | [diff] [blame] | 1022 | u.unique = (char *)busid; |
| 1023 | u.unique_len = strlen(busid); |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1024 | |
Keith Packard | 8b9ab10 | 2008-06-13 16:03:22 -0700 | [diff] [blame] | 1025 | if (drmIoctl(fd, DRM_IOCTL_SET_UNIQUE, &u)) { |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1026 | return -errno; |
David Dawes | 56bd9c2 | 2001-07-30 19:59:39 +0000 | [diff] [blame] | 1027 | } |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1028 | return 0; |
| 1029 | } |
| 1030 | |
Jon Smirl | 8696e71 | 2004-07-07 04:36:36 +0000 | [diff] [blame] | 1031 | int drmGetMagic(int fd, drm_magic_t * magic) |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1032 | { |
| 1033 | drm_auth_t auth; |
| 1034 | |
Daniel Vetter | fd38794 | 2015-02-11 12:41:04 +0100 | [diff] [blame] | 1035 | memclear(auth); |
| 1036 | |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1037 | *magic = 0; |
Keith Packard | 8b9ab10 | 2008-06-13 16:03:22 -0700 | [diff] [blame] | 1038 | if (drmIoctl(fd, DRM_IOCTL_GET_MAGIC, &auth)) |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1039 | return -errno; |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1040 | *magic = auth.magic; |
| 1041 | return 0; |
| 1042 | } |
| 1043 | |
Jon Smirl | 8696e71 | 2004-07-07 04:36:36 +0000 | [diff] [blame] | 1044 | int drmAuthMagic(int fd, drm_magic_t magic) |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1045 | { |
| 1046 | drm_auth_t auth; |
| 1047 | |
Daniel Vetter | fd38794 | 2015-02-11 12:41:04 +0100 | [diff] [blame] | 1048 | memclear(auth); |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1049 | auth.magic = magic; |
Keith Packard | 8b9ab10 | 2008-06-13 16:03:22 -0700 | [diff] [blame] | 1050 | if (drmIoctl(fd, DRM_IOCTL_AUTH_MAGIC, &auth)) |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1051 | return -errno; |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1052 | return 0; |
| 1053 | } |
| 1054 | |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 1055 | /** |
| 1056 | * Specifies a range of memory that is available for mapping by a |
| 1057 | * non-root process. |
| 1058 | * |
| 1059 | * \param fd file descriptor. |
| 1060 | * \param offset usually the physical address. The actual meaning depends of |
| 1061 | * the \p type parameter. See below. |
| 1062 | * \param size of the memory in bytes. |
| 1063 | * \param type type of the memory to be mapped. |
| 1064 | * \param flags combination of several flags to modify the function actions. |
| 1065 | * \param handle will be set to a value that may be used as the offset |
| 1066 | * parameter for mmap(). |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1067 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 1068 | * \return zero on success or a negative value on error. |
| 1069 | * |
| 1070 | * \par Mapping the frame buffer |
| 1071 | * For the frame buffer |
| 1072 | * - \p offset will be the physical address of the start of the frame buffer, |
| 1073 | * - \p size will be the size of the frame buffer in bytes, and |
| 1074 | * - \p type will be DRM_FRAME_BUFFER. |
| 1075 | * |
| 1076 | * \par |
| 1077 | * The area mapped will be uncached. If MTRR support is available in the |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1078 | * kernel, the frame buffer area will be set to write combining. |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 1079 | * |
| 1080 | * \par Mapping the MMIO register area |
| 1081 | * For the MMIO register area, |
| 1082 | * - \p offset will be the physical address of the start of the register area, |
| 1083 | * - \p size will be the size of the register area bytes, and |
| 1084 | * - \p type will be DRM_REGISTERS. |
| 1085 | * \par |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1086 | * The area mapped will be uncached. |
| 1087 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 1088 | * \par Mapping the SAREA |
| 1089 | * For the SAREA, |
| 1090 | * - \p offset will be ignored and should be set to zero, |
| 1091 | * - \p size will be the desired size of the SAREA in bytes, |
| 1092 | * - \p type will be DRM_SHM. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1093 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 1094 | * \par |
| 1095 | * A shared memory area of the requested size will be created and locked in |
| 1096 | * kernel memory. This area may be mapped into client-space by using the handle |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1097 | * returned. |
| 1098 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 1099 | * \note May only be called by root. |
| 1100 | * |
| 1101 | * \internal |
| 1102 | * This function is a wrapper around the DRM_IOCTL_ADD_MAP ioctl, passing |
| 1103 | * the arguments in a drm_map structure. |
| 1104 | */ |
Adam Jackson | 22e41ef | 2006-02-20 23:09:00 +0000 | [diff] [blame] | 1105 | int drmAddMap(int fd, drm_handle_t offset, drmSize size, drmMapType type, |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1106 | drmMapFlags flags, drm_handle_t *handle) |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1107 | { |
| 1108 | drm_map_t map; |
| 1109 | |
Daniel Vetter | fd38794 | 2015-02-11 12:41:04 +0100 | [diff] [blame] | 1110 | memclear(map); |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1111 | map.offset = offset; |
| 1112 | map.size = size; |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1113 | map.type = type; |
| 1114 | map.flags = flags; |
Keith Packard | 8b9ab10 | 2008-06-13 16:03:22 -0700 | [diff] [blame] | 1115 | if (drmIoctl(fd, DRM_IOCTL_ADD_MAP, &map)) |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1116 | return -errno; |
Brian | ccd7b6e | 2007-05-29 14:54:00 -0600 | [diff] [blame] | 1117 | if (handle) |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1118 | *handle = (drm_handle_t)(uintptr_t)map.handle; |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1119 | return 0; |
| 1120 | } |
| 1121 | |
Jon Smirl | 8696e71 | 2004-07-07 04:36:36 +0000 | [diff] [blame] | 1122 | int drmRmMap(int fd, drm_handle_t handle) |
Kevin E Martin | 74e19a4 | 2001-03-14 22:22:50 +0000 | [diff] [blame] | 1123 | { |
| 1124 | drm_map_t map; |
| 1125 | |
Daniel Vetter | fd38794 | 2015-02-11 12:41:04 +0100 | [diff] [blame] | 1126 | memclear(map); |
Jeremy Huddleston | 961bf9b | 2011-11-01 14:42:13 -0700 | [diff] [blame] | 1127 | map.handle = (void *)(uintptr_t)handle; |
Kevin E Martin | 74e19a4 | 2001-03-14 22:22:50 +0000 | [diff] [blame] | 1128 | |
Keith Packard | 8b9ab10 | 2008-06-13 16:03:22 -0700 | [diff] [blame] | 1129 | if(drmIoctl(fd, DRM_IOCTL_RM_MAP, &map)) |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1130 | return -errno; |
Kevin E Martin | 74e19a4 | 2001-03-14 22:22:50 +0000 | [diff] [blame] | 1131 | return 0; |
| 1132 | } |
| 1133 | |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 1134 | /** |
| 1135 | * Make buffers available for DMA transfers. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1136 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 1137 | * \param fd file descriptor. |
| 1138 | * \param count number of buffers. |
| 1139 | * \param size size of each buffer. |
| 1140 | * \param flags buffer allocation flags. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1141 | * \param agp_offset offset in the AGP aperture |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 1142 | * |
| 1143 | * \return number of buffers allocated, negative on error. |
| 1144 | * |
| 1145 | * \internal |
| 1146 | * This function is a wrapper around DRM_IOCTL_ADD_BUFS ioctl. |
| 1147 | * |
| 1148 | * \sa drm_buf_desc. |
| 1149 | */ |
Jeff Hartmann | ba1b1ae | 2000-04-04 22:08:14 +0000 | [diff] [blame] | 1150 | int drmAddBufs(int fd, int count, int size, drmBufDescFlags flags, |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1151 | int agp_offset) |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1152 | { |
| 1153 | drm_buf_desc_t request; |
Gareth Hughes | 3604753 | 2001-02-15 08:12:14 +0000 | [diff] [blame] | 1154 | |
Daniel Vetter | fd38794 | 2015-02-11 12:41:04 +0100 | [diff] [blame] | 1155 | memclear(request); |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1156 | request.count = count; |
| 1157 | request.size = size; |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1158 | request.flags = flags; |
Jeff Hartmann | ba1b1ae | 2000-04-04 22:08:14 +0000 | [diff] [blame] | 1159 | request.agp_start = agp_offset; |
Gareth Hughes | 3604753 | 2001-02-15 08:12:14 +0000 | [diff] [blame] | 1160 | |
Keith Packard | 8b9ab10 | 2008-06-13 16:03:22 -0700 | [diff] [blame] | 1161 | if (drmIoctl(fd, DRM_IOCTL_ADD_BUFS, &request)) |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1162 | return -errno; |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1163 | return request.count; |
| 1164 | } |
| 1165 | |
| 1166 | int drmMarkBufs(int fd, double low, double high) |
| 1167 | { |
| 1168 | drm_buf_info_t info; |
| 1169 | int i; |
| 1170 | |
Daniel Vetter | fd38794 | 2015-02-11 12:41:04 +0100 | [diff] [blame] | 1171 | memclear(info); |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1172 | |
Keith Packard | 8b9ab10 | 2008-06-13 16:03:22 -0700 | [diff] [blame] | 1173 | if (drmIoctl(fd, DRM_IOCTL_INFO_BUFS, &info)) |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1174 | return -EINVAL; |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1175 | |
Brian | ccd7b6e | 2007-05-29 14:54:00 -0600 | [diff] [blame] | 1176 | if (!info.count) |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1177 | return -EINVAL; |
Gareth Hughes | 3604753 | 2001-02-15 08:12:14 +0000 | [diff] [blame] | 1178 | |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1179 | if (!(info.list = drmMalloc(info.count * sizeof(*info.list)))) |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1180 | return -ENOMEM; |
Gareth Hughes | 3604753 | 2001-02-15 08:12:14 +0000 | [diff] [blame] | 1181 | |
Keith Packard | 8b9ab10 | 2008-06-13 16:03:22 -0700 | [diff] [blame] | 1182 | if (drmIoctl(fd, DRM_IOCTL_INFO_BUFS, &info)) { |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1183 | int retval = -errno; |
| 1184 | drmFree(info.list); |
| 1185 | return retval; |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1186 | } |
Gareth Hughes | 3604753 | 2001-02-15 08:12:14 +0000 | [diff] [blame] | 1187 | |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1188 | for (i = 0; i < info.count; i++) { |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1189 | info.list[i].low_mark = low * info.list[i].count; |
| 1190 | info.list[i].high_mark = high * info.list[i].count; |
| 1191 | if (drmIoctl(fd, DRM_IOCTL_MARK_BUFS, &info.list[i])) { |
| 1192 | int retval = -errno; |
| 1193 | drmFree(info.list); |
| 1194 | return retval; |
| 1195 | } |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1196 | } |
| 1197 | drmFree(info.list); |
Gareth Hughes | 3604753 | 2001-02-15 08:12:14 +0000 | [diff] [blame] | 1198 | |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1199 | return 0; |
| 1200 | } |
| 1201 | |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 1202 | /** |
| 1203 | * Free buffers. |
| 1204 | * |
| 1205 | * \param fd file descriptor. |
| 1206 | * \param count number of buffers to free. |
| 1207 | * \param list list of buffers to be freed. |
| 1208 | * |
| 1209 | * \return zero on success, or a negative value on failure. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1210 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 1211 | * \note This function is primarily used for debugging. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1212 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 1213 | * \internal |
| 1214 | * This function is a wrapper around the DRM_IOCTL_FREE_BUFS ioctl, passing |
| 1215 | * the arguments in a drm_buf_free structure. |
| 1216 | */ |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1217 | int drmFreeBufs(int fd, int count, int *list) |
| 1218 | { |
| 1219 | drm_buf_free_t request; |
| 1220 | |
Daniel Vetter | fd38794 | 2015-02-11 12:41:04 +0100 | [diff] [blame] | 1221 | memclear(request); |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1222 | request.count = count; |
| 1223 | request.list = list; |
Keith Packard | 8b9ab10 | 2008-06-13 16:03:22 -0700 | [diff] [blame] | 1224 | if (drmIoctl(fd, DRM_IOCTL_FREE_BUFS, &request)) |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1225 | return -errno; |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1226 | return 0; |
| 1227 | } |
| 1228 | |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 1229 | |
| 1230 | /** |
| 1231 | * Close the device. |
| 1232 | * |
| 1233 | * \param fd file descriptor. |
| 1234 | * |
| 1235 | * \internal |
| 1236 | * This function closes the file descriptor. |
| 1237 | */ |
Daryll Strauss | b6a28bf | 1999-12-05 23:10:37 +0000 | [diff] [blame] | 1238 | int drmClose(int fd) |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1239 | { |
| 1240 | unsigned long key = drmGetKeyFromFd(fd); |
| 1241 | drmHashEntry *entry = drmGetEntry(fd); |
| 1242 | |
| 1243 | drmHashDestroy(entry->tagTable); |
| 1244 | entry->fd = 0; |
| 1245 | entry->f = NULL; |
| 1246 | entry->tagTable = NULL; |
| 1247 | |
| 1248 | drmHashDelete(drmHashTable, key); |
| 1249 | drmFree(entry); |
| 1250 | |
| 1251 | return close(fd); |
| 1252 | } |
| 1253 | |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 1254 | |
| 1255 | /** |
| 1256 | * Map a region of memory. |
| 1257 | * |
| 1258 | * \param fd file descriptor. |
| 1259 | * \param handle handle returned by drmAddMap(). |
| 1260 | * \param size size in bytes. Must match the size used by drmAddMap(). |
| 1261 | * \param address will contain the user-space virtual address where the mapping |
| 1262 | * begins. |
| 1263 | * |
| 1264 | * \return zero on success, or a negative value on failure. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1265 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 1266 | * \internal |
| 1267 | * This function is a wrapper for mmap(). |
| 1268 | */ |
Adam Jackson | 22e41ef | 2006-02-20 23:09:00 +0000 | [diff] [blame] | 1269 | int drmMap(int fd, drm_handle_t handle, drmSize size, drmAddressPtr address) |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1270 | { |
Alan Hourihane | c7558d8 | 2000-09-24 09:34:10 +0000 | [diff] [blame] | 1271 | static unsigned long pagesize_mask = 0; |
| 1272 | |
Brian | ccd7b6e | 2007-05-29 14:54:00 -0600 | [diff] [blame] | 1273 | if (fd < 0) |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1274 | return -EINVAL; |
Alan Hourihane | c7558d8 | 2000-09-24 09:34:10 +0000 | [diff] [blame] | 1275 | |
| 1276 | if (!pagesize_mask) |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1277 | pagesize_mask = getpagesize() - 1; |
Alan Hourihane | c7558d8 | 2000-09-24 09:34:10 +0000 | [diff] [blame] | 1278 | |
| 1279 | size = (size + pagesize_mask) & ~pagesize_mask; |
| 1280 | |
Emil Velikov | faf51d5 | 2014-09-07 20:03:05 +0100 | [diff] [blame] | 1281 | *address = drm_mmap(0, size, PROT_READ|PROT_WRITE, MAP_SHARED, fd, handle); |
Brian | ccd7b6e | 2007-05-29 14:54:00 -0600 | [diff] [blame] | 1282 | if (*address == MAP_FAILED) |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1283 | return -errno; |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1284 | return 0; |
| 1285 | } |
| 1286 | |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 1287 | |
| 1288 | /** |
| 1289 | * Unmap mappings obtained with drmMap(). |
| 1290 | * |
| 1291 | * \param address address as given by drmMap(). |
| 1292 | * \param size size in bytes. Must match the size used by drmMap(). |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1293 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 1294 | * \return zero on success, or a negative value on failure. |
| 1295 | * |
| 1296 | * \internal |
Adam Jackson | 22e41ef | 2006-02-20 23:09:00 +0000 | [diff] [blame] | 1297 | * This function is a wrapper for munmap(). |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 1298 | */ |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1299 | int drmUnmap(drmAddress address, drmSize size) |
| 1300 | { |
Emil Velikov | faf51d5 | 2014-09-07 20:03:05 +0100 | [diff] [blame] | 1301 | return drm_munmap(address, size); |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1302 | } |
| 1303 | |
| 1304 | drmBufInfoPtr drmGetBufInfo(int fd) |
| 1305 | { |
| 1306 | drm_buf_info_t info; |
| 1307 | drmBufInfoPtr retval; |
| 1308 | int i; |
| 1309 | |
Daniel Vetter | fd38794 | 2015-02-11 12:41:04 +0100 | [diff] [blame] | 1310 | memclear(info); |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1311 | |
Keith Packard | 8b9ab10 | 2008-06-13 16:03:22 -0700 | [diff] [blame] | 1312 | if (drmIoctl(fd, DRM_IOCTL_INFO_BUFS, &info)) |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1313 | return NULL; |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1314 | |
| 1315 | if (info.count) { |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1316 | if (!(info.list = drmMalloc(info.count * sizeof(*info.list)))) |
| 1317 | return NULL; |
Gareth Hughes | 3604753 | 2001-02-15 08:12:14 +0000 | [diff] [blame] | 1318 | |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1319 | if (drmIoctl(fd, DRM_IOCTL_INFO_BUFS, &info)) { |
| 1320 | drmFree(info.list); |
| 1321 | return NULL; |
| 1322 | } |
Adam Jackson | 22e41ef | 2006-02-20 23:09:00 +0000 | [diff] [blame] | 1323 | |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1324 | retval = drmMalloc(sizeof(*retval)); |
| 1325 | retval->count = info.count; |
| 1326 | retval->list = drmMalloc(info.count * sizeof(*retval->list)); |
| 1327 | for (i = 0; i < info.count; i++) { |
| 1328 | retval->list[i].count = info.list[i].count; |
| 1329 | retval->list[i].size = info.list[i].size; |
| 1330 | retval->list[i].low_mark = info.list[i].low_mark; |
| 1331 | retval->list[i].high_mark = info.list[i].high_mark; |
| 1332 | } |
| 1333 | drmFree(info.list); |
| 1334 | return retval; |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1335 | } |
| 1336 | return NULL; |
| 1337 | } |
| 1338 | |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 1339 | /** |
| 1340 | * Map all DMA buffers into client-virtual space. |
| 1341 | * |
| 1342 | * \param fd file descriptor. |
| 1343 | * |
| 1344 | * \return a pointer to a ::drmBufMap structure. |
| 1345 | * |
| 1346 | * \note The client may not use these buffers until obtaining buffer indices |
| 1347 | * with drmDMA(). |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1348 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 1349 | * \internal |
| 1350 | * This function calls the DRM_IOCTL_MAP_BUFS ioctl and copies the returned |
| 1351 | * information about the buffers in a drm_buf_map structure into the |
| 1352 | * client-visible data structures. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1353 | */ |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1354 | drmBufMapPtr drmMapBufs(int fd) |
| 1355 | { |
| 1356 | drm_buf_map_t bufs; |
| 1357 | drmBufMapPtr retval; |
| 1358 | int i; |
Gareth Hughes | 3604753 | 2001-02-15 08:12:14 +0000 | [diff] [blame] | 1359 | |
Daniel Vetter | fd38794 | 2015-02-11 12:41:04 +0100 | [diff] [blame] | 1360 | memclear(bufs); |
Keith Packard | 8b9ab10 | 2008-06-13 16:03:22 -0700 | [diff] [blame] | 1361 | if (drmIoctl(fd, DRM_IOCTL_MAP_BUFS, &bufs)) |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1362 | return NULL; |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1363 | |
Brian | ccd7b6e | 2007-05-29 14:54:00 -0600 | [diff] [blame] | 1364 | if (!bufs.count) |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1365 | return NULL; |
Jon Smirl | 8696e71 | 2004-07-07 04:36:36 +0000 | [diff] [blame] | 1366 | |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1367 | if (!(bufs.list = drmMalloc(bufs.count * sizeof(*bufs.list)))) |
| 1368 | return NULL; |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1369 | |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1370 | if (drmIoctl(fd, DRM_IOCTL_MAP_BUFS, &bufs)) { |
| 1371 | drmFree(bufs.list); |
| 1372 | return NULL; |
| 1373 | } |
Adam Jackson | 22e41ef | 2006-02-20 23:09:00 +0000 | [diff] [blame] | 1374 | |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1375 | retval = drmMalloc(sizeof(*retval)); |
| 1376 | retval->count = bufs.count; |
| 1377 | retval->list = drmMalloc(bufs.count * sizeof(*retval->list)); |
| 1378 | for (i = 0; i < bufs.count; i++) { |
| 1379 | retval->list[i].idx = bufs.list[i].idx; |
| 1380 | retval->list[i].total = bufs.list[i].total; |
| 1381 | retval->list[i].used = 0; |
| 1382 | retval->list[i].address = bufs.list[i].address; |
| 1383 | } |
Jon Smirl | 8696e71 | 2004-07-07 04:36:36 +0000 | [diff] [blame] | 1384 | |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1385 | drmFree(bufs.list); |
| 1386 | return retval; |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1387 | } |
| 1388 | |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 1389 | |
| 1390 | /** |
| 1391 | * Unmap buffers allocated with drmMapBufs(). |
| 1392 | * |
| 1393 | * \return zero on success, or negative value on failure. |
| 1394 | * |
| 1395 | * \internal |
Jon Smirl | 8696e71 | 2004-07-07 04:36:36 +0000 | [diff] [blame] | 1396 | * Calls munmap() for every buffer stored in \p bufs and frees the |
| 1397 | * memory allocated by drmMapBufs(). |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 1398 | */ |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1399 | int drmUnmapBufs(drmBufMapPtr bufs) |
| 1400 | { |
| 1401 | int i; |
Gareth Hughes | 3604753 | 2001-02-15 08:12:14 +0000 | [diff] [blame] | 1402 | |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1403 | for (i = 0; i < bufs->count; i++) { |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1404 | drm_munmap(bufs->list[i].address, bufs->list[i].total); |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1405 | } |
Jon Smirl | 8696e71 | 2004-07-07 04:36:36 +0000 | [diff] [blame] | 1406 | |
| 1407 | drmFree(bufs->list); |
| 1408 | drmFree(bufs); |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1409 | return 0; |
| 1410 | } |
| 1411 | |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 1412 | |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1413 | #define DRM_DMA_RETRY 16 |
Gareth Hughes | 3604753 | 2001-02-15 08:12:14 +0000 | [diff] [blame] | 1414 | |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 1415 | /** |
| 1416 | * Reserve DMA buffers. |
| 1417 | * |
| 1418 | * \param fd file descriptor. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1419 | * \param request |
| 1420 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 1421 | * \return zero on success, or a negative value on failure. |
| 1422 | * |
| 1423 | * \internal |
| 1424 | * Assemble the arguments into a drm_dma structure and keeps issuing the |
| 1425 | * DRM_IOCTL_DMA ioctl until success or until maximum number of retries. |
| 1426 | */ |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1427 | int drmDMA(int fd, drmDMAReqPtr request) |
| 1428 | { |
| 1429 | drm_dma_t dma; |
Gareth Hughes | 3604753 | 2001-02-15 08:12:14 +0000 | [diff] [blame] | 1430 | int ret, i = 0; |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1431 | |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1432 | dma.context = request->context; |
| 1433 | dma.send_count = request->send_count; |
| 1434 | dma.send_indices = request->send_list; |
| 1435 | dma.send_sizes = request->send_sizes; |
| 1436 | dma.flags = request->flags; |
| 1437 | dma.request_count = request->request_count; |
| 1438 | dma.request_size = request->request_size; |
| 1439 | dma.request_indices = request->request_list; |
| 1440 | dma.request_sizes = request->request_sizes; |
Jon Smirl | 8696e71 | 2004-07-07 04:36:36 +0000 | [diff] [blame] | 1441 | dma.granted_count = 0; |
Gareth Hughes | 3604753 | 2001-02-15 08:12:14 +0000 | [diff] [blame] | 1442 | |
| 1443 | do { |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1444 | ret = ioctl( fd, DRM_IOCTL_DMA, &dma ); |
Gareth Hughes | 3604753 | 2001-02-15 08:12:14 +0000 | [diff] [blame] | 1445 | } while ( ret && errno == EAGAIN && i++ < DRM_DMA_RETRY ); |
| 1446 | |
| 1447 | if ( ret == 0 ) { |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1448 | request->granted_count = dma.granted_count; |
| 1449 | return 0; |
Gareth Hughes | 3604753 | 2001-02-15 08:12:14 +0000 | [diff] [blame] | 1450 | } else { |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1451 | return -errno; |
Gareth Hughes | 3604753 | 2001-02-15 08:12:14 +0000 | [diff] [blame] | 1452 | } |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1453 | } |
| 1454 | |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 1455 | |
| 1456 | /** |
| 1457 | * Obtain heavyweight hardware lock. |
| 1458 | * |
| 1459 | * \param fd file descriptor. |
| 1460 | * \param context context. |
| 1461 | * \param flags flags that determine the sate of the hardware when the function |
| 1462 | * returns. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1463 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 1464 | * \return always zero. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1465 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 1466 | * \internal |
| 1467 | * This function translates the arguments into a drm_lock structure and issue |
| 1468 | * the DRM_IOCTL_LOCK ioctl until the lock is successfully acquired. |
| 1469 | */ |
Jon Smirl | 8696e71 | 2004-07-07 04:36:36 +0000 | [diff] [blame] | 1470 | int drmGetLock(int fd, drm_context_t context, drmLockFlags flags) |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1471 | { |
| 1472 | drm_lock_t lock; |
| 1473 | |
Daniel Vetter | fd38794 | 2015-02-11 12:41:04 +0100 | [diff] [blame] | 1474 | memclear(lock); |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1475 | lock.context = context; |
| 1476 | lock.flags = 0; |
| 1477 | if (flags & DRM_LOCK_READY) lock.flags |= _DRM_LOCK_READY; |
| 1478 | if (flags & DRM_LOCK_QUIESCENT) lock.flags |= _DRM_LOCK_QUIESCENT; |
| 1479 | if (flags & DRM_LOCK_FLUSH) lock.flags |= _DRM_LOCK_FLUSH; |
| 1480 | if (flags & DRM_LOCK_FLUSH_ALL) lock.flags |= _DRM_LOCK_FLUSH_ALL; |
| 1481 | if (flags & DRM_HALT_ALL_QUEUES) lock.flags |= _DRM_HALT_ALL_QUEUES; |
| 1482 | if (flags & DRM_HALT_CUR_QUEUES) lock.flags |= _DRM_HALT_CUR_QUEUES; |
Gareth Hughes | 3604753 | 2001-02-15 08:12:14 +0000 | [diff] [blame] | 1483 | |
Keith Packard | 8b9ab10 | 2008-06-13 16:03:22 -0700 | [diff] [blame] | 1484 | while (drmIoctl(fd, DRM_IOCTL_LOCK, &lock)) |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1485 | ; |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1486 | return 0; |
| 1487 | } |
| 1488 | |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 1489 | /** |
| 1490 | * Release the hardware lock. |
| 1491 | * |
| 1492 | * \param fd file descriptor. |
| 1493 | * \param context context. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1494 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 1495 | * \return zero on success, or a negative value on failure. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1496 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 1497 | * \internal |
| 1498 | * This function is a wrapper around the DRM_IOCTL_UNLOCK ioctl, passing the |
| 1499 | * argument in a drm_lock structure. |
| 1500 | */ |
Jon Smirl | 8696e71 | 2004-07-07 04:36:36 +0000 | [diff] [blame] | 1501 | int drmUnlock(int fd, drm_context_t context) |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1502 | { |
| 1503 | drm_lock_t lock; |
| 1504 | |
Daniel Vetter | fd38794 | 2015-02-11 12:41:04 +0100 | [diff] [blame] | 1505 | memclear(lock); |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1506 | lock.context = context; |
Keith Packard | 8b9ab10 | 2008-06-13 16:03:22 -0700 | [diff] [blame] | 1507 | return drmIoctl(fd, DRM_IOCTL_UNLOCK, &lock); |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1508 | } |
| 1509 | |
Adam Jackson | 22e41ef | 2006-02-20 23:09:00 +0000 | [diff] [blame] | 1510 | drm_context_t *drmGetReservedContextList(int fd, int *count) |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1511 | { |
| 1512 | drm_ctx_res_t res; |
| 1513 | drm_ctx_t *list; |
Jon Smirl | 8696e71 | 2004-07-07 04:36:36 +0000 | [diff] [blame] | 1514 | drm_context_t * retval; |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1515 | int i; |
| 1516 | |
Daniel Vetter | fd38794 | 2015-02-11 12:41:04 +0100 | [diff] [blame] | 1517 | memclear(res); |
Keith Packard | 8b9ab10 | 2008-06-13 16:03:22 -0700 | [diff] [blame] | 1518 | if (drmIoctl(fd, DRM_IOCTL_RES_CTX, &res)) |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1519 | return NULL; |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1520 | |
Brian | ccd7b6e | 2007-05-29 14:54:00 -0600 | [diff] [blame] | 1521 | if (!res.count) |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1522 | return NULL; |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1523 | |
Brian | ccd7b6e | 2007-05-29 14:54:00 -0600 | [diff] [blame] | 1524 | if (!(list = drmMalloc(res.count * sizeof(*list)))) |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1525 | return NULL; |
Seung-Woo Kim | 7b806e8 | 2017-03-27 11:09:29 +0900 | [diff] [blame] | 1526 | if (!(retval = drmMalloc(res.count * sizeof(*retval)))) |
| 1527 | goto err_free_list; |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1528 | |
| 1529 | res.contexts = list; |
Keith Packard | 8b9ab10 | 2008-06-13 16:03:22 -0700 | [diff] [blame] | 1530 | if (drmIoctl(fd, DRM_IOCTL_RES_CTX, &res)) |
Seung-Woo Kim | 7b806e8 | 2017-03-27 11:09:29 +0900 | [diff] [blame] | 1531 | goto err_free_context; |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1532 | |
Brian | ccd7b6e | 2007-05-29 14:54:00 -0600 | [diff] [blame] | 1533 | for (i = 0; i < res.count; i++) |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1534 | retval[i] = list[i].handle; |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1535 | drmFree(list); |
| 1536 | |
| 1537 | *count = res.count; |
| 1538 | return retval; |
Seung-Woo Kim | 7b806e8 | 2017-03-27 11:09:29 +0900 | [diff] [blame] | 1539 | |
| 1540 | err_free_list: |
| 1541 | drmFree(list); |
| 1542 | err_free_context: |
| 1543 | drmFree(retval); |
| 1544 | return NULL; |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1545 | } |
| 1546 | |
Adam Jackson | 22e41ef | 2006-02-20 23:09:00 +0000 | [diff] [blame] | 1547 | void drmFreeReservedContextList(drm_context_t *pt) |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1548 | { |
| 1549 | drmFree(pt); |
| 1550 | } |
| 1551 | |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 1552 | /** |
| 1553 | * Create context. |
| 1554 | * |
| 1555 | * Used by the X server during GLXContext initialization. This causes |
| 1556 | * per-context kernel-level resources to be allocated. |
| 1557 | * |
| 1558 | * \param fd file descriptor. |
| 1559 | * \param handle is set on success. To be used by the client when requesting DMA |
| 1560 | * dispatch with drmDMA(). |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1561 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 1562 | * \return zero on success, or a negative value on failure. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1563 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 1564 | * \note May only be called by root. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1565 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 1566 | * \internal |
| 1567 | * This function is a wrapper around the DRM_IOCTL_ADD_CTX ioctl, passing the |
| 1568 | * argument in a drm_ctx structure. |
| 1569 | */ |
Adam Jackson | 22e41ef | 2006-02-20 23:09:00 +0000 | [diff] [blame] | 1570 | int drmCreateContext(int fd, drm_context_t *handle) |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1571 | { |
| 1572 | drm_ctx_t ctx; |
| 1573 | |
Daniel Vetter | fd38794 | 2015-02-11 12:41:04 +0100 | [diff] [blame] | 1574 | memclear(ctx); |
Keith Packard | 8b9ab10 | 2008-06-13 16:03:22 -0700 | [diff] [blame] | 1575 | if (drmIoctl(fd, DRM_IOCTL_ADD_CTX, &ctx)) |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1576 | return -errno; |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1577 | *handle = ctx.handle; |
| 1578 | return 0; |
| 1579 | } |
| 1580 | |
Jon Smirl | 8696e71 | 2004-07-07 04:36:36 +0000 | [diff] [blame] | 1581 | int drmSwitchToContext(int fd, drm_context_t context) |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1582 | { |
| 1583 | drm_ctx_t ctx; |
| 1584 | |
Daniel Vetter | fd38794 | 2015-02-11 12:41:04 +0100 | [diff] [blame] | 1585 | memclear(ctx); |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1586 | ctx.handle = context; |
Keith Packard | 8b9ab10 | 2008-06-13 16:03:22 -0700 | [diff] [blame] | 1587 | if (drmIoctl(fd, DRM_IOCTL_SWITCH_CTX, &ctx)) |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1588 | return -errno; |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1589 | return 0; |
| 1590 | } |
| 1591 | |
Jon Smirl | 8696e71 | 2004-07-07 04:36:36 +0000 | [diff] [blame] | 1592 | int drmSetContextFlags(int fd, drm_context_t context, drm_context_tFlags flags) |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1593 | { |
| 1594 | drm_ctx_t ctx; |
| 1595 | |
Adam Jackson | 22e41ef | 2006-02-20 23:09:00 +0000 | [diff] [blame] | 1596 | /* |
| 1597 | * Context preserving means that no context switches are done between DMA |
| 1598 | * buffers from one context and the next. This is suitable for use in the |
| 1599 | * X server (which promises to maintain hardware context), or in the |
| 1600 | * client-side library when buffers are swapped on behalf of two threads. |
| 1601 | */ |
Daniel Vetter | fd38794 | 2015-02-11 12:41:04 +0100 | [diff] [blame] | 1602 | memclear(ctx); |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1603 | ctx.handle = context; |
Brian | ccd7b6e | 2007-05-29 14:54:00 -0600 | [diff] [blame] | 1604 | if (flags & DRM_CONTEXT_PRESERVED) |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1605 | ctx.flags |= _DRM_CONTEXT_PRESERVED; |
Brian | ccd7b6e | 2007-05-29 14:54:00 -0600 | [diff] [blame] | 1606 | if (flags & DRM_CONTEXT_2DONLY) |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1607 | ctx.flags |= _DRM_CONTEXT_2DONLY; |
Keith Packard | 8b9ab10 | 2008-06-13 16:03:22 -0700 | [diff] [blame] | 1608 | if (drmIoctl(fd, DRM_IOCTL_MOD_CTX, &ctx)) |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1609 | return -errno; |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1610 | return 0; |
| 1611 | } |
| 1612 | |
Adam Jackson | 22e41ef | 2006-02-20 23:09:00 +0000 | [diff] [blame] | 1613 | int drmGetContextFlags(int fd, drm_context_t context, |
| 1614 | drm_context_tFlagsPtr flags) |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1615 | { |
| 1616 | drm_ctx_t ctx; |
| 1617 | |
Daniel Vetter | fd38794 | 2015-02-11 12:41:04 +0100 | [diff] [blame] | 1618 | memclear(ctx); |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1619 | ctx.handle = context; |
Keith Packard | 8b9ab10 | 2008-06-13 16:03:22 -0700 | [diff] [blame] | 1620 | if (drmIoctl(fd, DRM_IOCTL_GET_CTX, &ctx)) |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1621 | return -errno; |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1622 | *flags = 0; |
Brian | ccd7b6e | 2007-05-29 14:54:00 -0600 | [diff] [blame] | 1623 | if (ctx.flags & _DRM_CONTEXT_PRESERVED) |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1624 | *flags |= DRM_CONTEXT_PRESERVED; |
Brian | ccd7b6e | 2007-05-29 14:54:00 -0600 | [diff] [blame] | 1625 | if (ctx.flags & _DRM_CONTEXT_2DONLY) |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1626 | *flags |= DRM_CONTEXT_2DONLY; |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1627 | return 0; |
| 1628 | } |
Gareth Hughes | 3604753 | 2001-02-15 08:12:14 +0000 | [diff] [blame] | 1629 | |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 1630 | /** |
| 1631 | * Destroy context. |
| 1632 | * |
| 1633 | * Free any kernel-level resources allocated with drmCreateContext() associated |
| 1634 | * with the context. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1635 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 1636 | * \param fd file descriptor. |
| 1637 | * \param handle handle given by drmCreateContext(). |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1638 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 1639 | * \return zero on success, or a negative value on failure. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1640 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 1641 | * \note May only be called by root. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1642 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 1643 | * \internal |
| 1644 | * This function is a wrapper around the DRM_IOCTL_RM_CTX ioctl, passing the |
| 1645 | * argument in a drm_ctx structure. |
| 1646 | */ |
Jon Smirl | 8696e71 | 2004-07-07 04:36:36 +0000 | [diff] [blame] | 1647 | int drmDestroyContext(int fd, drm_context_t handle) |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1648 | { |
| 1649 | drm_ctx_t ctx; |
Daniel Vetter | fd38794 | 2015-02-11 12:41:04 +0100 | [diff] [blame] | 1650 | |
| 1651 | memclear(ctx); |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1652 | ctx.handle = handle; |
Keith Packard | 8b9ab10 | 2008-06-13 16:03:22 -0700 | [diff] [blame] | 1653 | if (drmIoctl(fd, DRM_IOCTL_RM_CTX, &ctx)) |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1654 | return -errno; |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1655 | return 0; |
| 1656 | } |
| 1657 | |
Adam Jackson | 22e41ef | 2006-02-20 23:09:00 +0000 | [diff] [blame] | 1658 | int drmCreateDrawable(int fd, drm_drawable_t *handle) |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1659 | { |
| 1660 | drm_draw_t draw; |
Daniel Vetter | fd38794 | 2015-02-11 12:41:04 +0100 | [diff] [blame] | 1661 | |
| 1662 | memclear(draw); |
Keith Packard | 8b9ab10 | 2008-06-13 16:03:22 -0700 | [diff] [blame] | 1663 | if (drmIoctl(fd, DRM_IOCTL_ADD_DRAW, &draw)) |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1664 | return -errno; |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1665 | *handle = draw.handle; |
| 1666 | return 0; |
| 1667 | } |
| 1668 | |
Jon Smirl | 8696e71 | 2004-07-07 04:36:36 +0000 | [diff] [blame] | 1669 | int drmDestroyDrawable(int fd, drm_drawable_t handle) |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1670 | { |
| 1671 | drm_draw_t draw; |
Daniel Vetter | fd38794 | 2015-02-11 12:41:04 +0100 | [diff] [blame] | 1672 | |
| 1673 | memclear(draw); |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1674 | draw.handle = handle; |
Keith Packard | 8b9ab10 | 2008-06-13 16:03:22 -0700 | [diff] [blame] | 1675 | if (drmIoctl(fd, DRM_IOCTL_RM_DRAW, &draw)) |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1676 | return -errno; |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 1677 | return 0; |
| 1678 | } |
| 1679 | |
Michel Dänzer | 9810ec2 | 2006-08-22 16:40:07 +0200 | [diff] [blame] | 1680 | int drmUpdateDrawableInfo(int fd, drm_drawable_t handle, |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1681 | drm_drawable_info_type_t type, unsigned int num, |
| 1682 | void *data) |
Michel Dänzer | 9810ec2 | 2006-08-22 16:40:07 +0200 | [diff] [blame] | 1683 | { |
| 1684 | drm_update_draw_t update; |
| 1685 | |
Daniel Vetter | fd38794 | 2015-02-11 12:41:04 +0100 | [diff] [blame] | 1686 | memclear(update); |
Michel Dänzer | 9810ec2 | 2006-08-22 16:40:07 +0200 | [diff] [blame] | 1687 | update.handle = handle; |
| 1688 | update.type = type; |
| 1689 | update.num = num; |
| 1690 | update.data = (unsigned long long)(unsigned long)data; |
| 1691 | |
Keith Packard | 8b9ab10 | 2008-06-13 16:03:22 -0700 | [diff] [blame] | 1692 | if (drmIoctl(fd, DRM_IOCTL_UPDATE_DRAW, &update)) |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1693 | return -errno; |
Michel Dänzer | 9810ec2 | 2006-08-22 16:40:07 +0200 | [diff] [blame] | 1694 | |
| 1695 | return 0; |
| 1696 | } |
| 1697 | |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 1698 | /** |
| 1699 | * Acquire the AGP device. |
| 1700 | * |
| 1701 | * Must be called before any of the other AGP related calls. |
| 1702 | * |
| 1703 | * \param fd file descriptor. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1704 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 1705 | * \return zero on success, or a negative value on failure. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1706 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 1707 | * \internal |
| 1708 | * This function is a wrapper around the DRM_IOCTL_AGP_ACQUIRE ioctl. |
| 1709 | */ |
Jeff Hartmann | ba1b1ae | 2000-04-04 22:08:14 +0000 | [diff] [blame] | 1710 | int drmAgpAcquire(int fd) |
| 1711 | { |
Keith Packard | 8b9ab10 | 2008-06-13 16:03:22 -0700 | [diff] [blame] | 1712 | if (drmIoctl(fd, DRM_IOCTL_AGP_ACQUIRE, NULL)) |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1713 | return -errno; |
Jeff Hartmann | ba1b1ae | 2000-04-04 22:08:14 +0000 | [diff] [blame] | 1714 | return 0; |
| 1715 | } |
| 1716 | |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 1717 | |
| 1718 | /** |
| 1719 | * Release the AGP device. |
| 1720 | * |
| 1721 | * \param fd file descriptor. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1722 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 1723 | * \return zero on success, or a negative value on failure. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1724 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 1725 | * \internal |
| 1726 | * This function is a wrapper around the DRM_IOCTL_AGP_RELEASE ioctl. |
| 1727 | */ |
Jeff Hartmann | ba1b1ae | 2000-04-04 22:08:14 +0000 | [diff] [blame] | 1728 | int drmAgpRelease(int fd) |
| 1729 | { |
Keith Packard | 8b9ab10 | 2008-06-13 16:03:22 -0700 | [diff] [blame] | 1730 | if (drmIoctl(fd, DRM_IOCTL_AGP_RELEASE, NULL)) |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1731 | return -errno; |
Jeff Hartmann | ba1b1ae | 2000-04-04 22:08:14 +0000 | [diff] [blame] | 1732 | return 0; |
| 1733 | } |
| 1734 | |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 1735 | |
| 1736 | /** |
| 1737 | * Set the AGP mode. |
| 1738 | * |
| 1739 | * \param fd file descriptor. |
| 1740 | * \param mode AGP mode. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1741 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 1742 | * \return zero on success, or a negative value on failure. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1743 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 1744 | * \internal |
| 1745 | * This function is a wrapper around the DRM_IOCTL_AGP_ENABLE ioctl, passing the |
| 1746 | * argument in a drm_agp_mode structure. |
| 1747 | */ |
Jeff Hartmann | ba1b1ae | 2000-04-04 22:08:14 +0000 | [diff] [blame] | 1748 | int drmAgpEnable(int fd, unsigned long mode) |
| 1749 | { |
| 1750 | drm_agp_mode_t m; |
| 1751 | |
Connor Behan | 1490055 | 2015-03-24 13:53:51 -0400 | [diff] [blame] | 1752 | memclear(m); |
Jeff Hartmann | ba1b1ae | 2000-04-04 22:08:14 +0000 | [diff] [blame] | 1753 | m.mode = mode; |
Keith Packard | 8b9ab10 | 2008-06-13 16:03:22 -0700 | [diff] [blame] | 1754 | if (drmIoctl(fd, DRM_IOCTL_AGP_ENABLE, &m)) |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1755 | return -errno; |
Jeff Hartmann | ba1b1ae | 2000-04-04 22:08:14 +0000 | [diff] [blame] | 1756 | return 0; |
| 1757 | } |
| 1758 | |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 1759 | |
| 1760 | /** |
| 1761 | * Allocate a chunk of AGP memory. |
| 1762 | * |
| 1763 | * \param fd file descriptor. |
| 1764 | * \param size requested memory size in bytes. Will be rounded to page boundary. |
| 1765 | * \param type type of memory to allocate. |
| 1766 | * \param address if not zero, will be set to the physical address of the |
| 1767 | * allocated memory. |
| 1768 | * \param handle on success will be set to a handle of the allocated memory. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1769 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 1770 | * \return zero on success, or a negative value on failure. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1771 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 1772 | * \internal |
| 1773 | * This function is a wrapper around the DRM_IOCTL_AGP_ALLOC ioctl, passing the |
| 1774 | * arguments in a drm_agp_buffer structure. |
| 1775 | */ |
Jeff Hartmann | ba1b1ae | 2000-04-04 22:08:14 +0000 | [diff] [blame] | 1776 | int drmAgpAlloc(int fd, unsigned long size, unsigned long type, |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1777 | unsigned long *address, drm_handle_t *handle) |
Jeff Hartmann | ba1b1ae | 2000-04-04 22:08:14 +0000 | [diff] [blame] | 1778 | { |
| 1779 | drm_agp_buffer_t b; |
Alan Hourihane | b0a9285 | 2003-09-24 14:39:25 +0000 | [diff] [blame] | 1780 | |
Daniel Vetter | fd38794 | 2015-02-11 12:41:04 +0100 | [diff] [blame] | 1781 | memclear(b); |
Alan Hourihane | b0a9285 | 2003-09-24 14:39:25 +0000 | [diff] [blame] | 1782 | *handle = DRM_AGP_NO_HANDLE; |
Jeff Hartmann | ba1b1ae | 2000-04-04 22:08:14 +0000 | [diff] [blame] | 1783 | b.size = size; |
Jeff Hartmann | ba1b1ae | 2000-04-04 22:08:14 +0000 | [diff] [blame] | 1784 | b.type = type; |
Keith Packard | 8b9ab10 | 2008-06-13 16:03:22 -0700 | [diff] [blame] | 1785 | if (drmIoctl(fd, DRM_IOCTL_AGP_ALLOC, &b)) |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1786 | return -errno; |
Brian | ccd7b6e | 2007-05-29 14:54:00 -0600 | [diff] [blame] | 1787 | if (address != 0UL) |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1788 | *address = b.physical; |
Jeff Hartmann | ba1b1ae | 2000-04-04 22:08:14 +0000 | [diff] [blame] | 1789 | *handle = b.handle; |
| 1790 | return 0; |
| 1791 | } |
| 1792 | |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 1793 | |
| 1794 | /** |
| 1795 | * Free a chunk of AGP memory. |
| 1796 | * |
| 1797 | * \param fd file descriptor. |
| 1798 | * \param handle handle to the allocated memory, as given by drmAgpAllocate(). |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1799 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 1800 | * \return zero on success, or a negative value on failure. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1801 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 1802 | * \internal |
| 1803 | * This function is a wrapper around the DRM_IOCTL_AGP_FREE ioctl, passing the |
| 1804 | * argument in a drm_agp_buffer structure. |
| 1805 | */ |
Dave Airlie | 7ede209 | 2005-11-29 09:50:47 +0000 | [diff] [blame] | 1806 | int drmAgpFree(int fd, drm_handle_t handle) |
Jeff Hartmann | ba1b1ae | 2000-04-04 22:08:14 +0000 | [diff] [blame] | 1807 | { |
| 1808 | drm_agp_buffer_t b; |
| 1809 | |
Daniel Vetter | fd38794 | 2015-02-11 12:41:04 +0100 | [diff] [blame] | 1810 | memclear(b); |
Jeff Hartmann | ba1b1ae | 2000-04-04 22:08:14 +0000 | [diff] [blame] | 1811 | b.handle = handle; |
Keith Packard | 8b9ab10 | 2008-06-13 16:03:22 -0700 | [diff] [blame] | 1812 | if (drmIoctl(fd, DRM_IOCTL_AGP_FREE, &b)) |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1813 | return -errno; |
Jeff Hartmann | ba1b1ae | 2000-04-04 22:08:14 +0000 | [diff] [blame] | 1814 | return 0; |
| 1815 | } |
| 1816 | |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 1817 | |
| 1818 | /** |
| 1819 | * Bind a chunk of AGP memory. |
| 1820 | * |
| 1821 | * \param fd file descriptor. |
| 1822 | * \param handle handle to the allocated memory, as given by drmAgpAllocate(). |
| 1823 | * \param offset offset in bytes. It will round to page boundary. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1824 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 1825 | * \return zero on success, or a negative value on failure. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1826 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 1827 | * \internal |
| 1828 | * This function is a wrapper around the DRM_IOCTL_AGP_BIND ioctl, passing the |
| 1829 | * argument in a drm_agp_binding structure. |
| 1830 | */ |
Dave Airlie | 7ede209 | 2005-11-29 09:50:47 +0000 | [diff] [blame] | 1831 | int drmAgpBind(int fd, drm_handle_t handle, unsigned long offset) |
Jeff Hartmann | ba1b1ae | 2000-04-04 22:08:14 +0000 | [diff] [blame] | 1832 | { |
| 1833 | drm_agp_binding_t b; |
| 1834 | |
Daniel Vetter | fd38794 | 2015-02-11 12:41:04 +0100 | [diff] [blame] | 1835 | memclear(b); |
Jeff Hartmann | ba1b1ae | 2000-04-04 22:08:14 +0000 | [diff] [blame] | 1836 | b.handle = handle; |
| 1837 | b.offset = offset; |
Keith Packard | 8b9ab10 | 2008-06-13 16:03:22 -0700 | [diff] [blame] | 1838 | if (drmIoctl(fd, DRM_IOCTL_AGP_BIND, &b)) |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1839 | return -errno; |
Jeff Hartmann | ba1b1ae | 2000-04-04 22:08:14 +0000 | [diff] [blame] | 1840 | return 0; |
| 1841 | } |
| 1842 | |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 1843 | |
| 1844 | /** |
| 1845 | * Unbind a chunk of AGP memory. |
| 1846 | * |
| 1847 | * \param fd file descriptor. |
| 1848 | * \param handle handle to the allocated memory, as given by drmAgpAllocate(). |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1849 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 1850 | * \return zero on success, or a negative value on failure. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1851 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 1852 | * \internal |
| 1853 | * This function is a wrapper around the DRM_IOCTL_AGP_UNBIND ioctl, passing |
| 1854 | * the argument in a drm_agp_binding structure. |
| 1855 | */ |
Dave Airlie | 7ede209 | 2005-11-29 09:50:47 +0000 | [diff] [blame] | 1856 | int drmAgpUnbind(int fd, drm_handle_t handle) |
Jeff Hartmann | ba1b1ae | 2000-04-04 22:08:14 +0000 | [diff] [blame] | 1857 | { |
| 1858 | drm_agp_binding_t b; |
| 1859 | |
Daniel Vetter | fd38794 | 2015-02-11 12:41:04 +0100 | [diff] [blame] | 1860 | memclear(b); |
Jeff Hartmann | ba1b1ae | 2000-04-04 22:08:14 +0000 | [diff] [blame] | 1861 | b.handle = handle; |
Keith Packard | 8b9ab10 | 2008-06-13 16:03:22 -0700 | [diff] [blame] | 1862 | if (drmIoctl(fd, DRM_IOCTL_AGP_UNBIND, &b)) |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1863 | return -errno; |
Jeff Hartmann | ba1b1ae | 2000-04-04 22:08:14 +0000 | [diff] [blame] | 1864 | return 0; |
| 1865 | } |
| 1866 | |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 1867 | |
| 1868 | /** |
| 1869 | * Get AGP driver major version number. |
| 1870 | * |
| 1871 | * \param fd file descriptor. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1872 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 1873 | * \return major version number on success, or a negative value on failure.. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1874 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 1875 | * \internal |
| 1876 | * This function is a wrapper around the DRM_IOCTL_AGP_INFO ioctl, getting the |
| 1877 | * necessary information in a drm_agp_info structure. |
| 1878 | */ |
Jeff Hartmann | ba1b1ae | 2000-04-04 22:08:14 +0000 | [diff] [blame] | 1879 | int drmAgpVersionMajor(int fd) |
| 1880 | { |
| 1881 | drm_agp_info_t i; |
| 1882 | |
Daniel Vetter | fd38794 | 2015-02-11 12:41:04 +0100 | [diff] [blame] | 1883 | memclear(i); |
| 1884 | |
Keith Packard | 8b9ab10 | 2008-06-13 16:03:22 -0700 | [diff] [blame] | 1885 | if (drmIoctl(fd, DRM_IOCTL_AGP_INFO, &i)) |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1886 | return -errno; |
Jeff Hartmann | ba1b1ae | 2000-04-04 22:08:14 +0000 | [diff] [blame] | 1887 | return i.agp_version_major; |
| 1888 | } |
| 1889 | |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 1890 | |
| 1891 | /** |
| 1892 | * Get AGP driver minor version number. |
| 1893 | * |
| 1894 | * \param fd file descriptor. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1895 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 1896 | * \return minor version number on success, or a negative value on failure. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1897 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 1898 | * \internal |
| 1899 | * This function is a wrapper around the DRM_IOCTL_AGP_INFO ioctl, getting the |
| 1900 | * necessary information in a drm_agp_info structure. |
| 1901 | */ |
Jeff Hartmann | ba1b1ae | 2000-04-04 22:08:14 +0000 | [diff] [blame] | 1902 | int drmAgpVersionMinor(int fd) |
| 1903 | { |
| 1904 | drm_agp_info_t i; |
| 1905 | |
Daniel Vetter | fd38794 | 2015-02-11 12:41:04 +0100 | [diff] [blame] | 1906 | memclear(i); |
| 1907 | |
Keith Packard | 8b9ab10 | 2008-06-13 16:03:22 -0700 | [diff] [blame] | 1908 | if (drmIoctl(fd, DRM_IOCTL_AGP_INFO, &i)) |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1909 | return -errno; |
Jeff Hartmann | ba1b1ae | 2000-04-04 22:08:14 +0000 | [diff] [blame] | 1910 | return i.agp_version_minor; |
| 1911 | } |
| 1912 | |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 1913 | |
| 1914 | /** |
| 1915 | * Get AGP mode. |
| 1916 | * |
| 1917 | * \param fd file descriptor. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1918 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 1919 | * \return mode on success, or zero on failure. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1920 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 1921 | * \internal |
| 1922 | * This function is a wrapper around the DRM_IOCTL_AGP_INFO ioctl, getting the |
| 1923 | * necessary information in a drm_agp_info structure. |
| 1924 | */ |
Jeff Hartmann | ba1b1ae | 2000-04-04 22:08:14 +0000 | [diff] [blame] | 1925 | unsigned long drmAgpGetMode(int fd) |
| 1926 | { |
| 1927 | drm_agp_info_t i; |
| 1928 | |
Daniel Vetter | fd38794 | 2015-02-11 12:41:04 +0100 | [diff] [blame] | 1929 | memclear(i); |
| 1930 | |
Keith Packard | 8b9ab10 | 2008-06-13 16:03:22 -0700 | [diff] [blame] | 1931 | if (drmIoctl(fd, DRM_IOCTL_AGP_INFO, &i)) |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1932 | return 0; |
Jeff Hartmann | ba1b1ae | 2000-04-04 22:08:14 +0000 | [diff] [blame] | 1933 | return i.mode; |
| 1934 | } |
| 1935 | |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 1936 | |
| 1937 | /** |
| 1938 | * Get AGP aperture base. |
| 1939 | * |
| 1940 | * \param fd file descriptor. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1941 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 1942 | * \return aperture base on success, zero on failure. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1943 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 1944 | * \internal |
| 1945 | * This function is a wrapper around the DRM_IOCTL_AGP_INFO ioctl, getting the |
| 1946 | * necessary information in a drm_agp_info structure. |
| 1947 | */ |
Jeff Hartmann | ba1b1ae | 2000-04-04 22:08:14 +0000 | [diff] [blame] | 1948 | unsigned long drmAgpBase(int fd) |
| 1949 | { |
| 1950 | drm_agp_info_t i; |
| 1951 | |
Daniel Vetter | fd38794 | 2015-02-11 12:41:04 +0100 | [diff] [blame] | 1952 | memclear(i); |
| 1953 | |
Keith Packard | 8b9ab10 | 2008-06-13 16:03:22 -0700 | [diff] [blame] | 1954 | if (drmIoctl(fd, DRM_IOCTL_AGP_INFO, &i)) |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1955 | return 0; |
Jeff Hartmann | ba1b1ae | 2000-04-04 22:08:14 +0000 | [diff] [blame] | 1956 | return i.aperture_base; |
| 1957 | } |
| 1958 | |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 1959 | |
| 1960 | /** |
| 1961 | * Get AGP aperture size. |
| 1962 | * |
| 1963 | * \param fd file descriptor. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1964 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 1965 | * \return aperture size on success, zero on failure. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1966 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 1967 | * \internal |
| 1968 | * This function is a wrapper around the DRM_IOCTL_AGP_INFO ioctl, getting the |
| 1969 | * necessary information in a drm_agp_info structure. |
| 1970 | */ |
Jeff Hartmann | ba1b1ae | 2000-04-04 22:08:14 +0000 | [diff] [blame] | 1971 | unsigned long drmAgpSize(int fd) |
| 1972 | { |
| 1973 | drm_agp_info_t i; |
| 1974 | |
Daniel Vetter | fd38794 | 2015-02-11 12:41:04 +0100 | [diff] [blame] | 1975 | memclear(i); |
| 1976 | |
Keith Packard | 8b9ab10 | 2008-06-13 16:03:22 -0700 | [diff] [blame] | 1977 | if (drmIoctl(fd, DRM_IOCTL_AGP_INFO, &i)) |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1978 | return 0; |
Jeff Hartmann | ba1b1ae | 2000-04-04 22:08:14 +0000 | [diff] [blame] | 1979 | return i.aperture_size; |
| 1980 | } |
| 1981 | |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 1982 | |
| 1983 | /** |
| 1984 | * Get used AGP memory. |
| 1985 | * |
| 1986 | * \param fd file descriptor. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1987 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 1988 | * \return memory used on success, or zero on failure. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 1989 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 1990 | * \internal |
| 1991 | * This function is a wrapper around the DRM_IOCTL_AGP_INFO ioctl, getting the |
| 1992 | * necessary information in a drm_agp_info structure. |
| 1993 | */ |
Jeff Hartmann | ba1b1ae | 2000-04-04 22:08:14 +0000 | [diff] [blame] | 1994 | unsigned long drmAgpMemoryUsed(int fd) |
| 1995 | { |
| 1996 | drm_agp_info_t i; |
| 1997 | |
Daniel Vetter | fd38794 | 2015-02-11 12:41:04 +0100 | [diff] [blame] | 1998 | memclear(i); |
| 1999 | |
Keith Packard | 8b9ab10 | 2008-06-13 16:03:22 -0700 | [diff] [blame] | 2000 | if (drmIoctl(fd, DRM_IOCTL_AGP_INFO, &i)) |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2001 | return 0; |
Jeff Hartmann | ba1b1ae | 2000-04-04 22:08:14 +0000 | [diff] [blame] | 2002 | return i.memory_used; |
| 2003 | } |
| 2004 | |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 2005 | |
| 2006 | /** |
| 2007 | * Get available AGP memory. |
| 2008 | * |
| 2009 | * \param fd file descriptor. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2010 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 2011 | * \return memory available on success, or zero on failure. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2012 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 2013 | * \internal |
| 2014 | * This function is a wrapper around the DRM_IOCTL_AGP_INFO ioctl, getting the |
| 2015 | * necessary information in a drm_agp_info structure. |
| 2016 | */ |
Jeff Hartmann | ba1b1ae | 2000-04-04 22:08:14 +0000 | [diff] [blame] | 2017 | unsigned long drmAgpMemoryAvail(int fd) |
| 2018 | { |
| 2019 | drm_agp_info_t i; |
| 2020 | |
Daniel Vetter | fd38794 | 2015-02-11 12:41:04 +0100 | [diff] [blame] | 2021 | memclear(i); |
| 2022 | |
Keith Packard | 8b9ab10 | 2008-06-13 16:03:22 -0700 | [diff] [blame] | 2023 | if (drmIoctl(fd, DRM_IOCTL_AGP_INFO, &i)) |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2024 | return 0; |
Jeff Hartmann | ba1b1ae | 2000-04-04 22:08:14 +0000 | [diff] [blame] | 2025 | return i.memory_allowed; |
| 2026 | } |
| 2027 | |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 2028 | |
| 2029 | /** |
| 2030 | * Get hardware vendor ID. |
| 2031 | * |
| 2032 | * \param fd file descriptor. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2033 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 2034 | * \return vendor ID on success, or zero on failure. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2035 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 2036 | * \internal |
| 2037 | * This function is a wrapper around the DRM_IOCTL_AGP_INFO ioctl, getting the |
| 2038 | * necessary information in a drm_agp_info structure. |
| 2039 | */ |
Jeff Hartmann | ba1b1ae | 2000-04-04 22:08:14 +0000 | [diff] [blame] | 2040 | unsigned int drmAgpVendorId(int fd) |
| 2041 | { |
| 2042 | drm_agp_info_t i; |
| 2043 | |
Daniel Vetter | fd38794 | 2015-02-11 12:41:04 +0100 | [diff] [blame] | 2044 | memclear(i); |
| 2045 | |
Keith Packard | 8b9ab10 | 2008-06-13 16:03:22 -0700 | [diff] [blame] | 2046 | if (drmIoctl(fd, DRM_IOCTL_AGP_INFO, &i)) |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2047 | return 0; |
Jeff Hartmann | ba1b1ae | 2000-04-04 22:08:14 +0000 | [diff] [blame] | 2048 | return i.id_vendor; |
| 2049 | } |
| 2050 | |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 2051 | |
| 2052 | /** |
| 2053 | * Get hardware device ID. |
| 2054 | * |
| 2055 | * \param fd file descriptor. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2056 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 2057 | * \return zero on success, or zero on failure. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2058 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 2059 | * \internal |
| 2060 | * This function is a wrapper around the DRM_IOCTL_AGP_INFO ioctl, getting the |
| 2061 | * necessary information in a drm_agp_info structure. |
| 2062 | */ |
Jeff Hartmann | ba1b1ae | 2000-04-04 22:08:14 +0000 | [diff] [blame] | 2063 | unsigned int drmAgpDeviceId(int fd) |
| 2064 | { |
| 2065 | drm_agp_info_t i; |
| 2066 | |
Daniel Vetter | fd38794 | 2015-02-11 12:41:04 +0100 | [diff] [blame] | 2067 | memclear(i); |
| 2068 | |
Keith Packard | 8b9ab10 | 2008-06-13 16:03:22 -0700 | [diff] [blame] | 2069 | if (drmIoctl(fd, DRM_IOCTL_AGP_INFO, &i)) |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2070 | return 0; |
Jeff Hartmann | ba1b1ae | 2000-04-04 22:08:14 +0000 | [diff] [blame] | 2071 | return i.id_device; |
| 2072 | } |
| 2073 | |
Dave Airlie | 7ede209 | 2005-11-29 09:50:47 +0000 | [diff] [blame] | 2074 | int drmScatterGatherAlloc(int fd, unsigned long size, drm_handle_t *handle) |
Kevin E Martin | 5d6ddbc | 2001-04-05 22:16:12 +0000 | [diff] [blame] | 2075 | { |
| 2076 | drm_scatter_gather_t sg; |
| 2077 | |
Daniel Vetter | fd38794 | 2015-02-11 12:41:04 +0100 | [diff] [blame] | 2078 | memclear(sg); |
| 2079 | |
Kevin E Martin | 5d6ddbc | 2001-04-05 22:16:12 +0000 | [diff] [blame] | 2080 | *handle = 0; |
| 2081 | sg.size = size; |
Keith Packard | 8b9ab10 | 2008-06-13 16:03:22 -0700 | [diff] [blame] | 2082 | if (drmIoctl(fd, DRM_IOCTL_SG_ALLOC, &sg)) |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2083 | return -errno; |
Kevin E Martin | 5d6ddbc | 2001-04-05 22:16:12 +0000 | [diff] [blame] | 2084 | *handle = sg.handle; |
| 2085 | return 0; |
| 2086 | } |
| 2087 | |
Dave Airlie | 7ede209 | 2005-11-29 09:50:47 +0000 | [diff] [blame] | 2088 | int drmScatterGatherFree(int fd, drm_handle_t handle) |
Kevin E Martin | 5d6ddbc | 2001-04-05 22:16:12 +0000 | [diff] [blame] | 2089 | { |
| 2090 | drm_scatter_gather_t sg; |
| 2091 | |
Daniel Vetter | fd38794 | 2015-02-11 12:41:04 +0100 | [diff] [blame] | 2092 | memclear(sg); |
Kevin E Martin | 5d6ddbc | 2001-04-05 22:16:12 +0000 | [diff] [blame] | 2093 | sg.handle = handle; |
Keith Packard | 8b9ab10 | 2008-06-13 16:03:22 -0700 | [diff] [blame] | 2094 | if (drmIoctl(fd, DRM_IOCTL_SG_FREE, &sg)) |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2095 | return -errno; |
Kevin E Martin | 5d6ddbc | 2001-04-05 22:16:12 +0000 | [diff] [blame] | 2096 | return 0; |
| 2097 | } |
| 2098 | |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 2099 | /** |
| 2100 | * Wait for VBLANK. |
| 2101 | * |
| 2102 | * \param fd file descriptor. |
| 2103 | * \param vbl pointer to a drmVBlank structure. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2104 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 2105 | * \return zero on success, or a negative value on failure. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2106 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 2107 | * \internal |
| 2108 | * This function is a wrapper around the DRM_IOCTL_WAIT_VBLANK ioctl. |
| 2109 | */ |
Michel Daenzer | 55acd0d | 2002-09-25 17:18:19 +0000 | [diff] [blame] | 2110 | int drmWaitVBlank(int fd, drmVBlankPtr vbl) |
| 2111 | { |
Jesse Barnes | f4f76a6 | 2009-01-07 10:18:08 -0800 | [diff] [blame] | 2112 | struct timespec timeout, cur; |
Michel Daenzer | 55acd0d | 2002-09-25 17:18:19 +0000 | [diff] [blame] | 2113 | int ret; |
| 2114 | |
Jesse Barnes | f4f76a6 | 2009-01-07 10:18:08 -0800 | [diff] [blame] | 2115 | ret = clock_gettime(CLOCK_MONOTONIC, &timeout); |
| 2116 | if (ret < 0) { |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2117 | fprintf(stderr, "clock_gettime failed: %s\n", strerror(errno)); |
| 2118 | goto out; |
Jesse Barnes | f4f76a6 | 2009-01-07 10:18:08 -0800 | [diff] [blame] | 2119 | } |
| 2120 | timeout.tv_sec++; |
| 2121 | |
Michel Daenzer | 55acd0d | 2002-09-25 17:18:19 +0000 | [diff] [blame] | 2122 | do { |
Jesse Barnes | f4f76a6 | 2009-01-07 10:18:08 -0800 | [diff] [blame] | 2123 | ret = ioctl(fd, DRM_IOCTL_WAIT_VBLANK, vbl); |
Michel Daenzer | c7d471b | 2003-02-02 03:06:47 +0000 | [diff] [blame] | 2124 | vbl->request.type &= ~DRM_VBLANK_RELATIVE; |
Jesse Barnes | ca37077 | 2009-01-07 10:48:26 -0800 | [diff] [blame] | 2125 | if (ret && errno == EINTR) { |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2126 | clock_gettime(CLOCK_MONOTONIC, &cur); |
| 2127 | /* Timeout after 1s */ |
| 2128 | if (cur.tv_sec > timeout.tv_sec + 1 || |
| 2129 | (cur.tv_sec == timeout.tv_sec && cur.tv_nsec >= |
| 2130 | timeout.tv_nsec)) { |
| 2131 | errno = EBUSY; |
| 2132 | ret = -1; |
| 2133 | break; |
| 2134 | } |
Jesse Barnes | f4f76a6 | 2009-01-07 10:18:08 -0800 | [diff] [blame] | 2135 | } |
Michel Daenzer | 55acd0d | 2002-09-25 17:18:19 +0000 | [diff] [blame] | 2136 | } while (ret && errno == EINTR); |
| 2137 | |
Jesse Barnes | f4f76a6 | 2009-01-07 10:18:08 -0800 | [diff] [blame] | 2138 | out: |
Michel Daenzer | 55acd0d | 2002-09-25 17:18:19 +0000 | [diff] [blame] | 2139 | return ret; |
| 2140 | } |
| 2141 | |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 2142 | int drmError(int err, const char *label) |
| 2143 | { |
| 2144 | switch (err) { |
Brian | ccd7b6e | 2007-05-29 14:54:00 -0600 | [diff] [blame] | 2145 | case DRM_ERR_NO_DEVICE: |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2146 | fprintf(stderr, "%s: no device\n", label); |
| 2147 | break; |
Brian | ccd7b6e | 2007-05-29 14:54:00 -0600 | [diff] [blame] | 2148 | case DRM_ERR_NO_ACCESS: |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2149 | fprintf(stderr, "%s: no access\n", label); |
| 2150 | break; |
Brian | ccd7b6e | 2007-05-29 14:54:00 -0600 | [diff] [blame] | 2151 | case DRM_ERR_NOT_ROOT: |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2152 | fprintf(stderr, "%s: not root\n", label); |
| 2153 | break; |
Brian | ccd7b6e | 2007-05-29 14:54:00 -0600 | [diff] [blame] | 2154 | case DRM_ERR_INVALID: |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2155 | fprintf(stderr, "%s: invalid args\n", label); |
| 2156 | break; |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 2157 | default: |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2158 | if (err < 0) |
| 2159 | err = -err; |
| 2160 | fprintf( stderr, "%s: error %d (%s)\n", label, err, strerror(err) ); |
| 2161 | break; |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 2162 | } |
| 2163 | |
| 2164 | return 1; |
| 2165 | } |
| 2166 | |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 2167 | /** |
| 2168 | * Install IRQ handler. |
| 2169 | * |
| 2170 | * \param fd file descriptor. |
| 2171 | * \param irq IRQ number. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2172 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 2173 | * \return zero on success, or a negative value on failure. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2174 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 2175 | * \internal |
| 2176 | * This function is a wrapper around the DRM_IOCTL_CONTROL ioctl, passing the |
| 2177 | * argument in a drm_control structure. |
| 2178 | */ |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 2179 | int drmCtlInstHandler(int fd, int irq) |
| 2180 | { |
| 2181 | drm_control_t ctl; |
| 2182 | |
Daniel Vetter | fd38794 | 2015-02-11 12:41:04 +0100 | [diff] [blame] | 2183 | memclear(ctl); |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 2184 | ctl.func = DRM_INST_HANDLER; |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 2185 | ctl.irq = irq; |
Keith Packard | 8b9ab10 | 2008-06-13 16:03:22 -0700 | [diff] [blame] | 2186 | if (drmIoctl(fd, DRM_IOCTL_CONTROL, &ctl)) |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2187 | return -errno; |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 2188 | return 0; |
| 2189 | } |
| 2190 | |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 2191 | |
| 2192 | /** |
| 2193 | * Uninstall IRQ handler. |
| 2194 | * |
| 2195 | * \param fd file descriptor. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2196 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 2197 | * \return zero on success, or a negative value on failure. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2198 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 2199 | * \internal |
| 2200 | * This function is a wrapper around the DRM_IOCTL_CONTROL ioctl, passing the |
| 2201 | * argument in a drm_control structure. |
| 2202 | */ |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 2203 | int drmCtlUninstHandler(int fd) |
| 2204 | { |
| 2205 | drm_control_t ctl; |
| 2206 | |
Daniel Vetter | fd38794 | 2015-02-11 12:41:04 +0100 | [diff] [blame] | 2207 | memclear(ctl); |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 2208 | ctl.func = DRM_UNINST_HANDLER; |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 2209 | ctl.irq = 0; |
Keith Packard | 8b9ab10 | 2008-06-13 16:03:22 -0700 | [diff] [blame] | 2210 | if (drmIoctl(fd, DRM_IOCTL_CONTROL, &ctl)) |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2211 | return -errno; |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 2212 | return 0; |
| 2213 | } |
| 2214 | |
| 2215 | int drmFinish(int fd, int context, drmLockFlags flags) |
| 2216 | { |
| 2217 | drm_lock_t lock; |
| 2218 | |
Daniel Vetter | fd38794 | 2015-02-11 12:41:04 +0100 | [diff] [blame] | 2219 | memclear(lock); |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 2220 | lock.context = context; |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 2221 | if (flags & DRM_LOCK_READY) lock.flags |= _DRM_LOCK_READY; |
| 2222 | if (flags & DRM_LOCK_QUIESCENT) lock.flags |= _DRM_LOCK_QUIESCENT; |
| 2223 | if (flags & DRM_LOCK_FLUSH) lock.flags |= _DRM_LOCK_FLUSH; |
| 2224 | if (flags & DRM_LOCK_FLUSH_ALL) lock.flags |= _DRM_LOCK_FLUSH_ALL; |
| 2225 | if (flags & DRM_HALT_ALL_QUEUES) lock.flags |= _DRM_HALT_ALL_QUEUES; |
| 2226 | if (flags & DRM_HALT_CUR_QUEUES) lock.flags |= _DRM_HALT_CUR_QUEUES; |
Keith Packard | 8b9ab10 | 2008-06-13 16:03:22 -0700 | [diff] [blame] | 2227 | if (drmIoctl(fd, DRM_IOCTL_FINISH, &lock)) |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2228 | return -errno; |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 2229 | return 0; |
| 2230 | } |
| 2231 | |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 2232 | /** |
| 2233 | * Get IRQ from bus ID. |
| 2234 | * |
| 2235 | * \param fd file descriptor. |
| 2236 | * \param busnum bus number. |
| 2237 | * \param devnum device number. |
| 2238 | * \param funcnum function number. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2239 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 2240 | * \return IRQ number on success, or a negative value on failure. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2241 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 2242 | * \internal |
| 2243 | * This function is a wrapper around the DRM_IOCTL_IRQ_BUSID ioctl, passing the |
| 2244 | * arguments in a drm_irq_busid structure. |
| 2245 | */ |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 2246 | int drmGetInterruptFromBusID(int fd, int busnum, int devnum, int funcnum) |
| 2247 | { |
| 2248 | drm_irq_busid_t p; |
| 2249 | |
Daniel Vetter | fd38794 | 2015-02-11 12:41:04 +0100 | [diff] [blame] | 2250 | memclear(p); |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 2251 | p.busnum = busnum; |
| 2252 | p.devnum = devnum; |
| 2253 | p.funcnum = funcnum; |
Keith Packard | 8b9ab10 | 2008-06-13 16:03:22 -0700 | [diff] [blame] | 2254 | if (drmIoctl(fd, DRM_IOCTL_IRQ_BUSID, &p)) |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2255 | return -errno; |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 2256 | return p.irq; |
| 2257 | } |
| 2258 | |
Jon Smirl | 8696e71 | 2004-07-07 04:36:36 +0000 | [diff] [blame] | 2259 | int drmAddContextTag(int fd, drm_context_t context, void *tag) |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 2260 | { |
| 2261 | drmHashEntry *entry = drmGetEntry(fd); |
| 2262 | |
| 2263 | if (drmHashInsert(entry->tagTable, context, tag)) { |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2264 | drmHashDelete(entry->tagTable, context); |
| 2265 | drmHashInsert(entry->tagTable, context, tag); |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 2266 | } |
| 2267 | return 0; |
| 2268 | } |
| 2269 | |
Jon Smirl | 8696e71 | 2004-07-07 04:36:36 +0000 | [diff] [blame] | 2270 | int drmDelContextTag(int fd, drm_context_t context) |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 2271 | { |
| 2272 | drmHashEntry *entry = drmGetEntry(fd); |
| 2273 | |
| 2274 | return drmHashDelete(entry->tagTable, context); |
| 2275 | } |
| 2276 | |
Jon Smirl | 8696e71 | 2004-07-07 04:36:36 +0000 | [diff] [blame] | 2277 | void *drmGetContextTag(int fd, drm_context_t context) |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 2278 | { |
| 2279 | drmHashEntry *entry = drmGetEntry(fd); |
| 2280 | void *value; |
Gareth Hughes | 3604753 | 2001-02-15 08:12:14 +0000 | [diff] [blame] | 2281 | |
Brian | ccd7b6e | 2007-05-29 14:54:00 -0600 | [diff] [blame] | 2282 | if (drmHashLookup(entry->tagTable, context, &value)) |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2283 | return NULL; |
Daryll Strauss | b3a5766 | 1999-12-05 01:19:48 +0000 | [diff] [blame] | 2284 | |
| 2285 | return value; |
| 2286 | } |
| 2287 | |
Adam Jackson | 22e41ef | 2006-02-20 23:09:00 +0000 | [diff] [blame] | 2288 | int drmAddContextPrivateMapping(int fd, drm_context_t ctx_id, |
| 2289 | drm_handle_t handle) |
Kevin E Martin | 74e19a4 | 2001-03-14 22:22:50 +0000 | [diff] [blame] | 2290 | { |
| 2291 | drm_ctx_priv_map_t map; |
| 2292 | |
Daniel Vetter | fd38794 | 2015-02-11 12:41:04 +0100 | [diff] [blame] | 2293 | memclear(map); |
Kevin E Martin | 74e19a4 | 2001-03-14 22:22:50 +0000 | [diff] [blame] | 2294 | map.ctx_id = ctx_id; |
Jeremy Huddleston | 961bf9b | 2011-11-01 14:42:13 -0700 | [diff] [blame] | 2295 | map.handle = (void *)(uintptr_t)handle; |
Kevin E Martin | 74e19a4 | 2001-03-14 22:22:50 +0000 | [diff] [blame] | 2296 | |
Keith Packard | 8b9ab10 | 2008-06-13 16:03:22 -0700 | [diff] [blame] | 2297 | if (drmIoctl(fd, DRM_IOCTL_SET_SAREA_CTX, &map)) |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2298 | return -errno; |
Kevin E Martin | 74e19a4 | 2001-03-14 22:22:50 +0000 | [diff] [blame] | 2299 | return 0; |
| 2300 | } |
| 2301 | |
Adam Jackson | 22e41ef | 2006-02-20 23:09:00 +0000 | [diff] [blame] | 2302 | int drmGetContextPrivateMapping(int fd, drm_context_t ctx_id, |
| 2303 | drm_handle_t *handle) |
Kevin E Martin | 74e19a4 | 2001-03-14 22:22:50 +0000 | [diff] [blame] | 2304 | { |
| 2305 | drm_ctx_priv_map_t map; |
| 2306 | |
Daniel Vetter | fd38794 | 2015-02-11 12:41:04 +0100 | [diff] [blame] | 2307 | memclear(map); |
Kevin E Martin | 74e19a4 | 2001-03-14 22:22:50 +0000 | [diff] [blame] | 2308 | map.ctx_id = ctx_id; |
| 2309 | |
Keith Packard | 8b9ab10 | 2008-06-13 16:03:22 -0700 | [diff] [blame] | 2310 | if (drmIoctl(fd, DRM_IOCTL_GET_SAREA_CTX, &map)) |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2311 | return -errno; |
Brian | ccd7b6e | 2007-05-29 14:54:00 -0600 | [diff] [blame] | 2312 | if (handle) |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2313 | *handle = (drm_handle_t)(uintptr_t)map.handle; |
Kevin E Martin | 74e19a4 | 2001-03-14 22:22:50 +0000 | [diff] [blame] | 2314 | |
| 2315 | return 0; |
| 2316 | } |
| 2317 | |
Jon Smirl | 8696e71 | 2004-07-07 04:36:36 +0000 | [diff] [blame] | 2318 | int drmGetMap(int fd, int idx, drm_handle_t *offset, drmSize *size, |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2319 | drmMapType *type, drmMapFlags *flags, drm_handle_t *handle, |
| 2320 | int *mtrr) |
Rik Faith | 88dbee5 | 2001-02-28 09:27:44 +0000 | [diff] [blame] | 2321 | { |
| 2322 | drm_map_t map; |
| 2323 | |
Daniel Vetter | fd38794 | 2015-02-11 12:41:04 +0100 | [diff] [blame] | 2324 | memclear(map); |
Rik Faith | 88dbee5 | 2001-02-28 09:27:44 +0000 | [diff] [blame] | 2325 | map.offset = idx; |
Keith Packard | 8b9ab10 | 2008-06-13 16:03:22 -0700 | [diff] [blame] | 2326 | if (drmIoctl(fd, DRM_IOCTL_GET_MAP, &map)) |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2327 | return -errno; |
Rik Faith | 88dbee5 | 2001-02-28 09:27:44 +0000 | [diff] [blame] | 2328 | *offset = map.offset; |
| 2329 | *size = map.size; |
| 2330 | *type = map.type; |
| 2331 | *flags = map.flags; |
| 2332 | *handle = (unsigned long)map.handle; |
| 2333 | *mtrr = map.mtrr; |
| 2334 | return 0; |
| 2335 | } |
| 2336 | |
| 2337 | int drmGetClient(int fd, int idx, int *auth, int *pid, int *uid, |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2338 | unsigned long *magic, unsigned long *iocs) |
Rik Faith | 88dbee5 | 2001-02-28 09:27:44 +0000 | [diff] [blame] | 2339 | { |
| 2340 | drm_client_t client; |
| 2341 | |
Daniel Vetter | fd38794 | 2015-02-11 12:41:04 +0100 | [diff] [blame] | 2342 | memclear(client); |
Rik Faith | 88dbee5 | 2001-02-28 09:27:44 +0000 | [diff] [blame] | 2343 | client.idx = idx; |
Keith Packard | 8b9ab10 | 2008-06-13 16:03:22 -0700 | [diff] [blame] | 2344 | if (drmIoctl(fd, DRM_IOCTL_GET_CLIENT, &client)) |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2345 | return -errno; |
Rik Faith | 88dbee5 | 2001-02-28 09:27:44 +0000 | [diff] [blame] | 2346 | *auth = client.auth; |
| 2347 | *pid = client.pid; |
| 2348 | *uid = client.uid; |
| 2349 | *magic = client.magic; |
| 2350 | *iocs = client.iocs; |
| 2351 | return 0; |
| 2352 | } |
| 2353 | |
| 2354 | int drmGetStats(int fd, drmStatsT *stats) |
| 2355 | { |
| 2356 | drm_stats_t s; |
Jan Vesely | de8532d | 2014-11-30 12:53:18 -0500 | [diff] [blame] | 2357 | unsigned i; |
Rik Faith | 88dbee5 | 2001-02-28 09:27:44 +0000 | [diff] [blame] | 2358 | |
Daniel Vetter | fd38794 | 2015-02-11 12:41:04 +0100 | [diff] [blame] | 2359 | memclear(s); |
Keith Packard | 8b9ab10 | 2008-06-13 16:03:22 -0700 | [diff] [blame] | 2360 | if (drmIoctl(fd, DRM_IOCTL_GET_STATS, &s)) |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2361 | return -errno; |
Rik Faith | 88dbee5 | 2001-02-28 09:27:44 +0000 | [diff] [blame] | 2362 | |
| 2363 | stats->count = 0; |
| 2364 | memset(stats, 0, sizeof(*stats)); |
| 2365 | if (s.count > sizeof(stats->data)/sizeof(stats->data[0])) |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2366 | return -1; |
Rik Faith | 88dbee5 | 2001-02-28 09:27:44 +0000 | [diff] [blame] | 2367 | |
| 2368 | #define SET_VALUE \ |
| 2369 | stats->data[i].long_format = "%-20.20s"; \ |
| 2370 | stats->data[i].rate_format = "%8.8s"; \ |
| 2371 | stats->data[i].isvalue = 1; \ |
| 2372 | stats->data[i].verbose = 0 |
| 2373 | |
| 2374 | #define SET_COUNT \ |
| 2375 | stats->data[i].long_format = "%-20.20s"; \ |
| 2376 | stats->data[i].rate_format = "%5.5s"; \ |
| 2377 | stats->data[i].isvalue = 0; \ |
| 2378 | stats->data[i].mult_names = "kgm"; \ |
| 2379 | stats->data[i].mult = 1000; \ |
| 2380 | stats->data[i].verbose = 0 |
| 2381 | |
| 2382 | #define SET_BYTE \ |
| 2383 | stats->data[i].long_format = "%-20.20s"; \ |
| 2384 | stats->data[i].rate_format = "%5.5s"; \ |
| 2385 | stats->data[i].isvalue = 0; \ |
| 2386 | stats->data[i].mult_names = "KGM"; \ |
| 2387 | stats->data[i].mult = 1024; \ |
| 2388 | stats->data[i].verbose = 0 |
| 2389 | |
| 2390 | |
| 2391 | stats->count = s.count; |
| 2392 | for (i = 0; i < s.count; i++) { |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2393 | stats->data[i].value = s.data[i].value; |
| 2394 | switch (s.data[i].type) { |
| 2395 | case _DRM_STAT_LOCK: |
| 2396 | stats->data[i].long_name = "Lock"; |
| 2397 | stats->data[i].rate_name = "Lock"; |
| 2398 | SET_VALUE; |
| 2399 | break; |
| 2400 | case _DRM_STAT_OPENS: |
| 2401 | stats->data[i].long_name = "Opens"; |
| 2402 | stats->data[i].rate_name = "O"; |
| 2403 | SET_COUNT; |
| 2404 | stats->data[i].verbose = 1; |
| 2405 | break; |
| 2406 | case _DRM_STAT_CLOSES: |
| 2407 | stats->data[i].long_name = "Closes"; |
| 2408 | stats->data[i].rate_name = "Lock"; |
| 2409 | SET_COUNT; |
| 2410 | stats->data[i].verbose = 1; |
| 2411 | break; |
| 2412 | case _DRM_STAT_IOCTLS: |
| 2413 | stats->data[i].long_name = "Ioctls"; |
| 2414 | stats->data[i].rate_name = "Ioc/s"; |
| 2415 | SET_COUNT; |
| 2416 | break; |
| 2417 | case _DRM_STAT_LOCKS: |
| 2418 | stats->data[i].long_name = "Locks"; |
| 2419 | stats->data[i].rate_name = "Lck/s"; |
| 2420 | SET_COUNT; |
| 2421 | break; |
| 2422 | case _DRM_STAT_UNLOCKS: |
| 2423 | stats->data[i].long_name = "Unlocks"; |
| 2424 | stats->data[i].rate_name = "Unl/s"; |
| 2425 | SET_COUNT; |
| 2426 | break; |
| 2427 | case _DRM_STAT_IRQ: |
| 2428 | stats->data[i].long_name = "IRQs"; |
| 2429 | stats->data[i].rate_name = "IRQ/s"; |
| 2430 | SET_COUNT; |
| 2431 | break; |
| 2432 | case _DRM_STAT_PRIMARY: |
| 2433 | stats->data[i].long_name = "Primary Bytes"; |
| 2434 | stats->data[i].rate_name = "PB/s"; |
| 2435 | SET_BYTE; |
| 2436 | break; |
| 2437 | case _DRM_STAT_SECONDARY: |
| 2438 | stats->data[i].long_name = "Secondary Bytes"; |
| 2439 | stats->data[i].rate_name = "SB/s"; |
| 2440 | SET_BYTE; |
| 2441 | break; |
| 2442 | case _DRM_STAT_DMA: |
| 2443 | stats->data[i].long_name = "DMA"; |
| 2444 | stats->data[i].rate_name = "DMA/s"; |
| 2445 | SET_COUNT; |
| 2446 | break; |
| 2447 | case _DRM_STAT_SPECIAL: |
| 2448 | stats->data[i].long_name = "Special DMA"; |
| 2449 | stats->data[i].rate_name = "dma/s"; |
| 2450 | SET_COUNT; |
| 2451 | break; |
| 2452 | case _DRM_STAT_MISSED: |
| 2453 | stats->data[i].long_name = "Miss"; |
| 2454 | stats->data[i].rate_name = "Ms/s"; |
| 2455 | SET_COUNT; |
| 2456 | break; |
| 2457 | case _DRM_STAT_VALUE: |
| 2458 | stats->data[i].long_name = "Value"; |
| 2459 | stats->data[i].rate_name = "Value"; |
| 2460 | SET_VALUE; |
| 2461 | break; |
| 2462 | case _DRM_STAT_BYTE: |
| 2463 | stats->data[i].long_name = "Bytes"; |
| 2464 | stats->data[i].rate_name = "B/s"; |
| 2465 | SET_BYTE; |
| 2466 | break; |
| 2467 | case _DRM_STAT_COUNT: |
| 2468 | default: |
| 2469 | stats->data[i].long_name = "Count"; |
| 2470 | stats->data[i].rate_name = "Cnt/s"; |
| 2471 | SET_COUNT; |
| 2472 | break; |
| 2473 | } |
Rik Faith | 88dbee5 | 2001-02-28 09:27:44 +0000 | [diff] [blame] | 2474 | } |
| 2475 | return 0; |
| 2476 | } |
| 2477 | |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 2478 | /** |
Eric Anholt | 06cb132 | 2003-10-23 02:23:31 +0000 | [diff] [blame] | 2479 | * Issue a set-version ioctl. |
| 2480 | * |
| 2481 | * \param fd file descriptor. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2482 | * \param drmCommandIndex command index |
Eric Anholt | 06cb132 | 2003-10-23 02:23:31 +0000 | [diff] [blame] | 2483 | * \param data source pointer of the data to be read and written. |
| 2484 | * \param size size of the data to be read and written. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2485 | * |
Eric Anholt | 06cb132 | 2003-10-23 02:23:31 +0000 | [diff] [blame] | 2486 | * \return zero on success, or a negative value on failure. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2487 | * |
Eric Anholt | 06cb132 | 2003-10-23 02:23:31 +0000 | [diff] [blame] | 2488 | * \internal |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2489 | * It issues a read-write ioctl given by |
Eric Anholt | 06cb132 | 2003-10-23 02:23:31 +0000 | [diff] [blame] | 2490 | * \code DRM_COMMAND_BASE + drmCommandIndex \endcode. |
| 2491 | */ |
Adam Jackson | 22e41ef | 2006-02-20 23:09:00 +0000 | [diff] [blame] | 2492 | int drmSetInterfaceVersion(int fd, drmSetVersion *version) |
Eric Anholt | 06cb132 | 2003-10-23 02:23:31 +0000 | [diff] [blame] | 2493 | { |
| 2494 | int retcode = 0; |
| 2495 | drm_set_version_t sv; |
| 2496 | |
Daniel Vetter | fd38794 | 2015-02-11 12:41:04 +0100 | [diff] [blame] | 2497 | memclear(sv); |
Eric Anholt | 06cb132 | 2003-10-23 02:23:31 +0000 | [diff] [blame] | 2498 | sv.drm_di_major = version->drm_di_major; |
| 2499 | sv.drm_di_minor = version->drm_di_minor; |
| 2500 | sv.drm_dd_major = version->drm_dd_major; |
| 2501 | sv.drm_dd_minor = version->drm_dd_minor; |
| 2502 | |
Keith Packard | 8b9ab10 | 2008-06-13 16:03:22 -0700 | [diff] [blame] | 2503 | if (drmIoctl(fd, DRM_IOCTL_SET_VERSION, &sv)) { |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2504 | retcode = -errno; |
Eric Anholt | 06cb132 | 2003-10-23 02:23:31 +0000 | [diff] [blame] | 2505 | } |
| 2506 | |
| 2507 | version->drm_di_major = sv.drm_di_major; |
| 2508 | version->drm_di_minor = sv.drm_di_minor; |
| 2509 | version->drm_dd_major = sv.drm_dd_major; |
| 2510 | version->drm_dd_minor = sv.drm_dd_minor; |
| 2511 | |
| 2512 | return retcode; |
| 2513 | } |
| 2514 | |
| 2515 | /** |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 2516 | * Send a device-specific command. |
| 2517 | * |
| 2518 | * \param fd file descriptor. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2519 | * \param drmCommandIndex command index |
| 2520 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 2521 | * \return zero on success, or a negative value on failure. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2522 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 2523 | * \internal |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2524 | * It issues a ioctl given by |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 2525 | * \code DRM_COMMAND_BASE + drmCommandIndex \endcode. |
| 2526 | */ |
Jens Owen | 3903e5a | 2002-04-09 21:54:56 +0000 | [diff] [blame] | 2527 | int drmCommandNone(int fd, unsigned long drmCommandIndex) |
| 2528 | { |
Jens Owen | 3903e5a | 2002-04-09 21:54:56 +0000 | [diff] [blame] | 2529 | unsigned long request; |
| 2530 | |
| 2531 | request = DRM_IO( DRM_COMMAND_BASE + drmCommandIndex); |
| 2532 | |
Daniel Vetter | fd38794 | 2015-02-11 12:41:04 +0100 | [diff] [blame] | 2533 | if (drmIoctl(fd, request, NULL)) { |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2534 | return -errno; |
Jens Owen | 3903e5a | 2002-04-09 21:54:56 +0000 | [diff] [blame] | 2535 | } |
| 2536 | return 0; |
| 2537 | } |
| 2538 | |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 2539 | |
| 2540 | /** |
| 2541 | * Send a device-specific read command. |
| 2542 | * |
| 2543 | * \param fd file descriptor. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2544 | * \param drmCommandIndex command index |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 2545 | * \param data destination pointer of the data to be read. |
| 2546 | * \param size size of the data to be read. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2547 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 2548 | * \return zero on success, or a negative value on failure. |
| 2549 | * |
| 2550 | * \internal |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2551 | * It issues a read ioctl given by |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 2552 | * \code DRM_COMMAND_BASE + drmCommandIndex \endcode. |
| 2553 | */ |
Adam Jackson | 22e41ef | 2006-02-20 23:09:00 +0000 | [diff] [blame] | 2554 | int drmCommandRead(int fd, unsigned long drmCommandIndex, void *data, |
| 2555 | unsigned long size) |
Jens Owen | 3903e5a | 2002-04-09 21:54:56 +0000 | [diff] [blame] | 2556 | { |
| 2557 | unsigned long request; |
| 2558 | |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2559 | request = DRM_IOC( DRM_IOC_READ, DRM_IOCTL_BASE, |
| 2560 | DRM_COMMAND_BASE + drmCommandIndex, size); |
Jens Owen | 3903e5a | 2002-04-09 21:54:56 +0000 | [diff] [blame] | 2561 | |
Keith Packard | 8b9ab10 | 2008-06-13 16:03:22 -0700 | [diff] [blame] | 2562 | if (drmIoctl(fd, request, data)) { |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2563 | return -errno; |
Jens Owen | 3903e5a | 2002-04-09 21:54:56 +0000 | [diff] [blame] | 2564 | } |
| 2565 | return 0; |
| 2566 | } |
| 2567 | |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 2568 | |
| 2569 | /** |
| 2570 | * Send a device-specific write command. |
| 2571 | * |
| 2572 | * \param fd file descriptor. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2573 | * \param drmCommandIndex command index |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 2574 | * \param data source pointer of the data to be written. |
| 2575 | * \param size size of the data to be written. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2576 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 2577 | * \return zero on success, or a negative value on failure. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2578 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 2579 | * \internal |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2580 | * It issues a write ioctl given by |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 2581 | * \code DRM_COMMAND_BASE + drmCommandIndex \endcode. |
| 2582 | */ |
Adam Jackson | 22e41ef | 2006-02-20 23:09:00 +0000 | [diff] [blame] | 2583 | int drmCommandWrite(int fd, unsigned long drmCommandIndex, void *data, |
| 2584 | unsigned long size) |
Jens Owen | 3903e5a | 2002-04-09 21:54:56 +0000 | [diff] [blame] | 2585 | { |
| 2586 | unsigned long request; |
| 2587 | |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2588 | request = DRM_IOC( DRM_IOC_WRITE, DRM_IOCTL_BASE, |
| 2589 | DRM_COMMAND_BASE + drmCommandIndex, size); |
Jens Owen | 3903e5a | 2002-04-09 21:54:56 +0000 | [diff] [blame] | 2590 | |
Keith Packard | 8b9ab10 | 2008-06-13 16:03:22 -0700 | [diff] [blame] | 2591 | if (drmIoctl(fd, request, data)) { |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2592 | return -errno; |
Jens Owen | 3903e5a | 2002-04-09 21:54:56 +0000 | [diff] [blame] | 2593 | } |
| 2594 | return 0; |
| 2595 | } |
| 2596 | |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 2597 | |
| 2598 | /** |
| 2599 | * Send a device-specific read-write command. |
| 2600 | * |
| 2601 | * \param fd file descriptor. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2602 | * \param drmCommandIndex command index |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 2603 | * \param data source pointer of the data to be read and written. |
| 2604 | * \param size size of the data to be read and written. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2605 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 2606 | * \return zero on success, or a negative value on failure. |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2607 | * |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 2608 | * \internal |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2609 | * It issues a read-write ioctl given by |
Jose Fonseca | d2443b2 | 2003-05-27 00:37:33 +0000 | [diff] [blame] | 2610 | * \code DRM_COMMAND_BASE + drmCommandIndex \endcode. |
| 2611 | */ |
Adam Jackson | 22e41ef | 2006-02-20 23:09:00 +0000 | [diff] [blame] | 2612 | int drmCommandWriteRead(int fd, unsigned long drmCommandIndex, void *data, |
| 2613 | unsigned long size) |
Jens Owen | 3903e5a | 2002-04-09 21:54:56 +0000 | [diff] [blame] | 2614 | { |
| 2615 | unsigned long request; |
| 2616 | |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2617 | request = DRM_IOC( DRM_IOC_READ|DRM_IOC_WRITE, DRM_IOCTL_BASE, |
| 2618 | DRM_COMMAND_BASE + drmCommandIndex, size); |
Jens Owen | 3903e5a | 2002-04-09 21:54:56 +0000 | [diff] [blame] | 2619 | |
Keith Packard | 8b9ab10 | 2008-06-13 16:03:22 -0700 | [diff] [blame] | 2620 | if (drmIoctl(fd, request, data)) |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2621 | return -errno; |
Jens Owen | 3903e5a | 2002-04-09 21:54:56 +0000 | [diff] [blame] | 2622 | return 0; |
| 2623 | } |
Thomas Hellstrom | 166da93 | 2006-08-21 21:02:08 +0200 | [diff] [blame] | 2624 | |
Dave Airlie | d51e1bb | 2006-11-09 08:55:58 +1100 | [diff] [blame] | 2625 | #define DRM_MAX_FDS 16 |
| 2626 | static struct { |
Brian | ccd7b6e | 2007-05-29 14:54:00 -0600 | [diff] [blame] | 2627 | char *BusID; |
| 2628 | int fd; |
| 2629 | int refcount; |
Jammy Zhou | dbc8b11 | 2015-02-02 18:06:27 +0800 | [diff] [blame] | 2630 | int type; |
Dave Airlie | d51e1bb | 2006-11-09 08:55:58 +1100 | [diff] [blame] | 2631 | } connection[DRM_MAX_FDS]; |
| 2632 | |
| 2633 | static int nr_fds = 0; |
| 2634 | |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2635 | int drmOpenOnce(void *unused, |
| 2636 | const char *BusID, |
| 2637 | int *newlyopened) |
Dave Airlie | d51e1bb | 2006-11-09 08:55:58 +1100 | [diff] [blame] | 2638 | { |
Jammy Zhou | dbc8b11 | 2015-02-02 18:06:27 +0800 | [diff] [blame] | 2639 | return drmOpenOnceWithType(BusID, newlyopened, DRM_NODE_PRIMARY); |
| 2640 | } |
| 2641 | |
| 2642 | int drmOpenOnceWithType(const char *BusID, int *newlyopened, int type) |
| 2643 | { |
Brian | ccd7b6e | 2007-05-29 14:54:00 -0600 | [diff] [blame] | 2644 | int i; |
| 2645 | int fd; |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2646 | |
Brian | ccd7b6e | 2007-05-29 14:54:00 -0600 | [diff] [blame] | 2647 | for (i = 0; i < nr_fds; i++) |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2648 | if ((strcmp(BusID, connection[i].BusID) == 0) && |
| 2649 | (connection[i].type == type)) { |
| 2650 | connection[i].refcount++; |
| 2651 | *newlyopened = 0; |
| 2652 | return connection[i].fd; |
| 2653 | } |
Dave Airlie | d51e1bb | 2006-11-09 08:55:58 +1100 | [diff] [blame] | 2654 | |
Jammy Zhou | dbc8b11 | 2015-02-02 18:06:27 +0800 | [diff] [blame] | 2655 | fd = drmOpenWithType(NULL, BusID, type); |
Emil Velikov | c1cd3d9 | 2015-07-14 15:05:18 +0100 | [diff] [blame] | 2656 | if (fd < 0 || nr_fds == DRM_MAX_FDS) |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2657 | return fd; |
| 2658 | |
Brian | ccd7b6e | 2007-05-29 14:54:00 -0600 | [diff] [blame] | 2659 | connection[nr_fds].BusID = strdup(BusID); |
| 2660 | connection[nr_fds].fd = fd; |
| 2661 | connection[nr_fds].refcount = 1; |
Jammy Zhou | dbc8b11 | 2015-02-02 18:06:27 +0800 | [diff] [blame] | 2662 | connection[nr_fds].type = type; |
Brian | ccd7b6e | 2007-05-29 14:54:00 -0600 | [diff] [blame] | 2663 | *newlyopened = 1; |
Dave Airlie | d51e1bb | 2006-11-09 08:55:58 +1100 | [diff] [blame] | 2664 | |
Brian | ccd7b6e | 2007-05-29 14:54:00 -0600 | [diff] [blame] | 2665 | if (0) |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2666 | fprintf(stderr, "saved connection %d for %s %d\n", |
| 2667 | nr_fds, connection[nr_fds].BusID, |
| 2668 | strcmp(BusID, connection[nr_fds].BusID)); |
Dave Airlie | d51e1bb | 2006-11-09 08:55:58 +1100 | [diff] [blame] | 2669 | |
Brian | ccd7b6e | 2007-05-29 14:54:00 -0600 | [diff] [blame] | 2670 | nr_fds++; |
Dave Airlie | d51e1bb | 2006-11-09 08:55:58 +1100 | [diff] [blame] | 2671 | |
Brian | ccd7b6e | 2007-05-29 14:54:00 -0600 | [diff] [blame] | 2672 | return fd; |
Dave Airlie | d51e1bb | 2006-11-09 08:55:58 +1100 | [diff] [blame] | 2673 | } |
| 2674 | |
| 2675 | void drmCloseOnce(int fd) |
| 2676 | { |
Brian | ccd7b6e | 2007-05-29 14:54:00 -0600 | [diff] [blame] | 2677 | int i; |
Dave Airlie | d51e1bb | 2006-11-09 08:55:58 +1100 | [diff] [blame] | 2678 | |
Brian | ccd7b6e | 2007-05-29 14:54:00 -0600 | [diff] [blame] | 2679 | for (i = 0; i < nr_fds; i++) { |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2680 | if (fd == connection[i].fd) { |
| 2681 | if (--connection[i].refcount == 0) { |
| 2682 | drmClose(connection[i].fd); |
| 2683 | free(connection[i].BusID); |
Dave Airlie | d51e1bb | 2006-11-09 08:55:58 +1100 | [diff] [blame] | 2684 | |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2685 | if (i < --nr_fds) |
| 2686 | connection[i] = connection[nr_fds]; |
| 2687 | |
| 2688 | return; |
| 2689 | } |
| 2690 | } |
Brian | ccd7b6e | 2007-05-29 14:54:00 -0600 | [diff] [blame] | 2691 | } |
Dave Airlie | d51e1bb | 2006-11-09 08:55:58 +1100 | [diff] [blame] | 2692 | } |
Jesse Barnes | 731cd55 | 2008-12-17 10:09:49 -0800 | [diff] [blame] | 2693 | |
| 2694 | int drmSetMaster(int fd) |
| 2695 | { |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2696 | return drmIoctl(fd, DRM_IOCTL_SET_MASTER, NULL); |
Jesse Barnes | 731cd55 | 2008-12-17 10:09:49 -0800 | [diff] [blame] | 2697 | } |
| 2698 | |
| 2699 | int drmDropMaster(int fd) |
| 2700 | { |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2701 | return drmIoctl(fd, DRM_IOCTL_DROP_MASTER, NULL); |
Jesse Barnes | 731cd55 | 2008-12-17 10:09:49 -0800 | [diff] [blame] | 2702 | } |
Kristian Høgsberg | 22d4666 | 2009-11-23 20:51:34 -0500 | [diff] [blame] | 2703 | |
| 2704 | char *drmGetDeviceNameFromFd(int fd) |
| 2705 | { |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2706 | char name[128]; |
| 2707 | struct stat sbuf; |
| 2708 | dev_t d; |
| 2709 | int i; |
Kristian Høgsberg | 22d4666 | 2009-11-23 20:51:34 -0500 | [diff] [blame] | 2710 | |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2711 | /* The whole drmOpen thing is a fiasco and we need to find a way |
| 2712 | * back to just using open(2). For now, however, lets just make |
| 2713 | * things worse with even more ad hoc directory walking code to |
| 2714 | * discover the device file name. */ |
Kristian Høgsberg | 22d4666 | 2009-11-23 20:51:34 -0500 | [diff] [blame] | 2715 | |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2716 | fstat(fd, &sbuf); |
| 2717 | d = sbuf.st_rdev; |
Kristian Høgsberg | 22d4666 | 2009-11-23 20:51:34 -0500 | [diff] [blame] | 2718 | |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2719 | for (i = 0; i < DRM_MAX_MINOR; i++) { |
| 2720 | snprintf(name, sizeof name, DRM_DEV_NAME, DRM_DIR_NAME, i); |
| 2721 | if (stat(name, &sbuf) == 0 && sbuf.st_rdev == d) |
| 2722 | break; |
| 2723 | } |
| 2724 | if (i == DRM_MAX_MINOR) |
| 2725 | return NULL; |
Kristian Høgsberg | 22d4666 | 2009-11-23 20:51:34 -0500 | [diff] [blame] | 2726 | |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2727 | return strdup(name); |
Kristian Høgsberg | 22d4666 | 2009-11-23 20:51:34 -0500 | [diff] [blame] | 2728 | } |
Dave Airlie | cc0a145 | 2012-07-14 09:52:17 +0000 | [diff] [blame] | 2729 | |
Frank Binns | 1f73578 | 2015-02-13 10:51:15 +0000 | [diff] [blame] | 2730 | int drmGetNodeTypeFromFd(int fd) |
| 2731 | { |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2732 | struct stat sbuf; |
| 2733 | int maj, min, type; |
Frank Binns | 1f73578 | 2015-02-13 10:51:15 +0000 | [diff] [blame] | 2734 | |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2735 | if (fstat(fd, &sbuf)) |
| 2736 | return -1; |
Frank Binns | 1f73578 | 2015-02-13 10:51:15 +0000 | [diff] [blame] | 2737 | |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2738 | maj = major(sbuf.st_rdev); |
| 2739 | min = minor(sbuf.st_rdev); |
Frank Binns | 1f73578 | 2015-02-13 10:51:15 +0000 | [diff] [blame] | 2740 | |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2741 | if (maj != DRM_MAJOR || !S_ISCHR(sbuf.st_mode)) { |
| 2742 | errno = EINVAL; |
| 2743 | return -1; |
| 2744 | } |
Frank Binns | 1f73578 | 2015-02-13 10:51:15 +0000 | [diff] [blame] | 2745 | |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2746 | type = drmGetMinorType(min); |
| 2747 | if (type == -1) |
| 2748 | errno = ENODEV; |
| 2749 | return type; |
Frank Binns | 1f73578 | 2015-02-13 10:51:15 +0000 | [diff] [blame] | 2750 | } |
| 2751 | |
Dave Airlie | cc0a145 | 2012-07-14 09:52:17 +0000 | [diff] [blame] | 2752 | int drmPrimeHandleToFD(int fd, uint32_t handle, uint32_t flags, int *prime_fd) |
| 2753 | { |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2754 | struct drm_prime_handle args; |
| 2755 | int ret; |
Dave Airlie | cc0a145 | 2012-07-14 09:52:17 +0000 | [diff] [blame] | 2756 | |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2757 | memclear(args); |
| 2758 | args.fd = -1; |
| 2759 | args.handle = handle; |
| 2760 | args.flags = flags; |
| 2761 | ret = drmIoctl(fd, DRM_IOCTL_PRIME_HANDLE_TO_FD, &args); |
| 2762 | if (ret) |
| 2763 | return ret; |
Dave Airlie | cc0a145 | 2012-07-14 09:52:17 +0000 | [diff] [blame] | 2764 | |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2765 | *prime_fd = args.fd; |
| 2766 | return 0; |
Dave Airlie | cc0a145 | 2012-07-14 09:52:17 +0000 | [diff] [blame] | 2767 | } |
| 2768 | |
| 2769 | int drmPrimeFDToHandle(int fd, int prime_fd, uint32_t *handle) |
| 2770 | { |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2771 | struct drm_prime_handle args; |
| 2772 | int ret; |
Dave Airlie | cc0a145 | 2012-07-14 09:52:17 +0000 | [diff] [blame] | 2773 | |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2774 | memclear(args); |
| 2775 | args.fd = prime_fd; |
| 2776 | ret = drmIoctl(fd, DRM_IOCTL_PRIME_FD_TO_HANDLE, &args); |
| 2777 | if (ret) |
| 2778 | return ret; |
Dave Airlie | cc0a145 | 2012-07-14 09:52:17 +0000 | [diff] [blame] | 2779 | |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2780 | *handle = args.handle; |
| 2781 | return 0; |
Dave Airlie | cc0a145 | 2012-07-14 09:52:17 +0000 | [diff] [blame] | 2782 | } |
| 2783 | |
Emil Velikov | 0ca03a4 | 2015-03-07 00:58:39 +0000 | [diff] [blame] | 2784 | static char *drmGetMinorNameForFD(int fd, int type) |
| 2785 | { |
| 2786 | #ifdef __linux__ |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2787 | DIR *sysdir; |
| 2788 | struct dirent *pent, *ent; |
| 2789 | struct stat sbuf; |
| 2790 | const char *name = drmGetMinorName(type); |
| 2791 | int len; |
| 2792 | char dev_name[64], buf[64]; |
| 2793 | long name_max; |
| 2794 | int maj, min; |
Emil Velikov | 0ca03a4 | 2015-03-07 00:58:39 +0000 | [diff] [blame] | 2795 | |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2796 | if (!name) |
| 2797 | return NULL; |
Emil Velikov | 0ca03a4 | 2015-03-07 00:58:39 +0000 | [diff] [blame] | 2798 | |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2799 | len = strlen(name); |
Emil Velikov | 0ca03a4 | 2015-03-07 00:58:39 +0000 | [diff] [blame] | 2800 | |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2801 | if (fstat(fd, &sbuf)) |
| 2802 | return NULL; |
Emil Velikov | 0ca03a4 | 2015-03-07 00:58:39 +0000 | [diff] [blame] | 2803 | |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2804 | maj = major(sbuf.st_rdev); |
| 2805 | min = minor(sbuf.st_rdev); |
Emil Velikov | 0ca03a4 | 2015-03-07 00:58:39 +0000 | [diff] [blame] | 2806 | |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2807 | if (maj != DRM_MAJOR || !S_ISCHR(sbuf.st_mode)) |
| 2808 | return NULL; |
Emil Velikov | 0ca03a4 | 2015-03-07 00:58:39 +0000 | [diff] [blame] | 2809 | |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2810 | snprintf(buf, sizeof(buf), "/sys/dev/char/%d:%d/device/drm", maj, min); |
Emil Velikov | 0ca03a4 | 2015-03-07 00:58:39 +0000 | [diff] [blame] | 2811 | |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2812 | sysdir = opendir(buf); |
| 2813 | if (!sysdir) |
| 2814 | return NULL; |
Emil Velikov | 0ca03a4 | 2015-03-07 00:58:39 +0000 | [diff] [blame] | 2815 | |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2816 | name_max = fpathconf(dirfd(sysdir), _PC_NAME_MAX); |
| 2817 | if (name_max == -1) |
| 2818 | goto out_close_dir; |
Emil Velikov | 0ca03a4 | 2015-03-07 00:58:39 +0000 | [diff] [blame] | 2819 | |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2820 | pent = malloc(offsetof(struct dirent, d_name) + name_max + 1); |
| 2821 | if (pent == NULL) |
| 2822 | goto out_close_dir; |
Emil Velikov | 0ca03a4 | 2015-03-07 00:58:39 +0000 | [diff] [blame] | 2823 | |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2824 | while (readdir_r(sysdir, pent, &ent) == 0 && ent != NULL) { |
| 2825 | if (strncmp(ent->d_name, name, len) == 0) { |
| 2826 | snprintf(dev_name, sizeof(dev_name), DRM_DIR_NAME "/%s", |
| 2827 | ent->d_name); |
Mathias Tillman | 5c42b5e | 2015-08-24 11:56:13 +0800 | [diff] [blame] | 2828 | |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2829 | free(pent); |
| 2830 | closedir(sysdir); |
Emil Velikov | 0ca03a4 | 2015-03-07 00:58:39 +0000 | [diff] [blame] | 2831 | |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2832 | return strdup(dev_name); |
| 2833 | } |
| 2834 | } |
Emil Velikov | 0ca03a4 | 2015-03-07 00:58:39 +0000 | [diff] [blame] | 2835 | |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2836 | free(pent); |
Emil Velikov | 0ca03a4 | 2015-03-07 00:58:39 +0000 | [diff] [blame] | 2837 | |
| 2838 | out_close_dir: |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2839 | closedir(sysdir); |
Emil Velikov | 8415a00 | 2015-09-07 18:29:05 +0100 | [diff] [blame] | 2840 | #else |
Jonathan Gray | f189011 | 2016-12-01 15:18:39 +1100 | [diff] [blame] | 2841 | struct stat sbuf; |
| 2842 | char buf[PATH_MAX + 1]; |
| 2843 | const char *dev_name; |
| 2844 | unsigned int maj, min; |
Jonathan Gray | d5cf3f9 | 2016-12-17 16:09:51 +1100 | [diff] [blame] | 2845 | int n, base; |
Jonathan Gray | f189011 | 2016-12-01 15:18:39 +1100 | [diff] [blame] | 2846 | |
| 2847 | if (fstat(fd, &sbuf)) |
| 2848 | return NULL; |
| 2849 | |
| 2850 | maj = major(sbuf.st_rdev); |
| 2851 | min = minor(sbuf.st_rdev); |
| 2852 | |
| 2853 | if (maj != DRM_MAJOR || !S_ISCHR(sbuf.st_mode)) |
| 2854 | return NULL; |
| 2855 | |
| 2856 | switch (type) { |
| 2857 | case DRM_NODE_PRIMARY: |
| 2858 | dev_name = DRM_DEV_NAME; |
| 2859 | break; |
| 2860 | case DRM_NODE_CONTROL: |
| 2861 | dev_name = DRM_CONTROL_DEV_NAME; |
| 2862 | break; |
| 2863 | case DRM_NODE_RENDER: |
| 2864 | dev_name = DRM_RENDER_DEV_NAME; |
| 2865 | break; |
| 2866 | default: |
| 2867 | return NULL; |
| 2868 | }; |
| 2869 | |
Jonathan Gray | d5cf3f9 | 2016-12-17 16:09:51 +1100 | [diff] [blame] | 2870 | base = drmGetMinorBase(type); |
| 2871 | if (base < 0) |
| 2872 | return NULL; |
| 2873 | |
| 2874 | n = snprintf(buf, sizeof(buf), dev_name, DRM_DIR_NAME, min - base); |
Jonathan Gray | f189011 | 2016-12-01 15:18:39 +1100 | [diff] [blame] | 2875 | if (n == -1 || n >= sizeof(buf)) |
| 2876 | return NULL; |
| 2877 | |
| 2878 | return strdup(buf); |
Emil Velikov | 0ca03a4 | 2015-03-07 00:58:39 +0000 | [diff] [blame] | 2879 | #endif |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2880 | return NULL; |
Emil Velikov | 0ca03a4 | 2015-03-07 00:58:39 +0000 | [diff] [blame] | 2881 | } |
| 2882 | |
| 2883 | char *drmGetPrimaryDeviceNameFromFd(int fd) |
| 2884 | { |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2885 | return drmGetMinorNameForFD(fd, DRM_NODE_PRIMARY); |
Emil Velikov | 0ca03a4 | 2015-03-07 00:58:39 +0000 | [diff] [blame] | 2886 | } |
| 2887 | |
| 2888 | char *drmGetRenderDeviceNameFromFd(int fd) |
| 2889 | { |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 2890 | return drmGetMinorNameForFD(fd, DRM_NODE_RENDER); |
Emil Velikov | 0ca03a4 | 2015-03-07 00:58:39 +0000 | [diff] [blame] | 2891 | } |
Emil Velikov | b556ea1 | 2015-08-17 11:09:06 +0800 | [diff] [blame] | 2892 | |
Thierry Reding | f8484cc | 2016-12-22 00:39:36 +0100 | [diff] [blame] | 2893 | #ifdef __linux__ |
| 2894 | static char * DRM_PRINTFLIKE(2, 3) |
| 2895 | sysfs_uevent_get(const char *path, const char *fmt, ...) |
| 2896 | { |
| 2897 | char filename[PATH_MAX + 1], *key, *line = NULL, *value = NULL; |
| 2898 | size_t size = 0, len; |
| 2899 | ssize_t num; |
| 2900 | va_list ap; |
| 2901 | FILE *fp; |
| 2902 | |
| 2903 | va_start(ap, fmt); |
| 2904 | num = vasprintf(&key, fmt, ap); |
| 2905 | va_end(ap); |
| 2906 | len = num; |
| 2907 | |
| 2908 | snprintf(filename, sizeof(filename), "%s/uevent", path); |
| 2909 | |
| 2910 | fp = fopen(filename, "r"); |
| 2911 | if (!fp) { |
| 2912 | free(key); |
| 2913 | return NULL; |
| 2914 | } |
| 2915 | |
| 2916 | while ((num = getline(&line, &size, fp)) >= 0) { |
| 2917 | if ((strncmp(line, key, len) == 0) && (line[len] == '=')) { |
| 2918 | char *start = line + len + 1, *end = line + num - 1; |
| 2919 | |
| 2920 | if (*end != '\n') |
| 2921 | end++; |
| 2922 | |
| 2923 | value = strndup(start, end - start); |
| 2924 | break; |
| 2925 | } |
| 2926 | } |
| 2927 | |
| 2928 | free(line); |
| 2929 | fclose(fp); |
| 2930 | |
| 2931 | free(key); |
| 2932 | |
| 2933 | return value; |
| 2934 | } |
| 2935 | #endif |
| 2936 | |
Emil Velikov | a250fce | 2015-09-07 12:54:27 +0100 | [diff] [blame] | 2937 | static int drmParseSubsystemType(int maj, int min) |
Emil Velikov | b556ea1 | 2015-08-17 11:09:06 +0800 | [diff] [blame] | 2938 | { |
Emil Velikov | 291b2bb | 2015-09-07 18:26:34 +0100 | [diff] [blame] | 2939 | #ifdef __linux__ |
Emil Velikov | a250fce | 2015-09-07 12:54:27 +0100 | [diff] [blame] | 2940 | char path[PATH_MAX + 1]; |
Emil Velikov | b556ea1 | 2015-08-17 11:09:06 +0800 | [diff] [blame] | 2941 | char link[PATH_MAX + 1] = ""; |
| 2942 | char *name; |
| 2943 | |
Emil Velikov | a250fce | 2015-09-07 12:54:27 +0100 | [diff] [blame] | 2944 | snprintf(path, PATH_MAX, "/sys/dev/char/%d:%d/device/subsystem", |
| 2945 | maj, min); |
| 2946 | |
| 2947 | if (readlink(path, link, PATH_MAX) < 0) |
| 2948 | return -errno; |
Emil Velikov | b556ea1 | 2015-08-17 11:09:06 +0800 | [diff] [blame] | 2949 | |
| 2950 | name = strrchr(link, '/'); |
| 2951 | if (!name) |
| 2952 | return -EINVAL; |
| 2953 | |
Emil Velikov | a250fce | 2015-09-07 12:54:27 +0100 | [diff] [blame] | 2954 | if (strncmp(name, "/pci", 4) == 0) |
Emil Velikov | b556ea1 | 2015-08-17 11:09:06 +0800 | [diff] [blame] | 2955 | return DRM_BUS_PCI; |
| 2956 | |
Thierry Reding | f8484cc | 2016-12-22 00:39:36 +0100 | [diff] [blame] | 2957 | if (strncmp(name, "/usb", 4) == 0) |
| 2958 | return DRM_BUS_USB; |
| 2959 | |
Thierry Reding | 7b1f37f | 2016-12-21 17:59:04 +0100 | [diff] [blame] | 2960 | if (strncmp(name, "/platform", 9) == 0) |
| 2961 | return DRM_BUS_PLATFORM; |
| 2962 | |
| 2963 | if (strncmp(name, "/host1x", 7) == 0) |
| 2964 | return DRM_BUS_HOST1X; |
| 2965 | |
Emil Velikov | b556ea1 | 2015-08-17 11:09:06 +0800 | [diff] [blame] | 2966 | return -EINVAL; |
Jonathan Gray | d05b9f2 | 2016-12-01 15:18:40 +1100 | [diff] [blame] | 2967 | #elif defined(__OpenBSD__) |
Thierry Reding | e17cad1 | 2016-12-21 18:00:52 +0100 | [diff] [blame] | 2968 | return DRM_BUS_PCI; |
Emil Velikov | 291b2bb | 2015-09-07 18:26:34 +0100 | [diff] [blame] | 2969 | #else |
| 2970 | #warning "Missing implementation of drmParseSubsystemType" |
| 2971 | return -EINVAL; |
| 2972 | #endif |
Emil Velikov | b556ea1 | 2015-08-17 11:09:06 +0800 | [diff] [blame] | 2973 | } |
| 2974 | |
Emil Velikov | 536e0de | 2015-09-07 12:37:57 +0100 | [diff] [blame] | 2975 | static int drmParsePciBusInfo(int maj, int min, drmPciBusInfoPtr info) |
Emil Velikov | b556ea1 | 2015-08-17 11:09:06 +0800 | [diff] [blame] | 2976 | { |
Emil Velikov | 291b2bb | 2015-09-07 18:26:34 +0100 | [diff] [blame] | 2977 | #ifdef __linux__ |
Thierry Reding | 5403cb3 | 2017-01-18 08:29:23 +0100 | [diff] [blame] | 2978 | unsigned int domain, bus, dev, func; |
| 2979 | char path[PATH_MAX + 1], *value; |
| 2980 | int num; |
Emil Velikov | b556ea1 | 2015-08-17 11:09:06 +0800 | [diff] [blame] | 2981 | |
Thierry Reding | 5403cb3 | 2017-01-18 08:29:23 +0100 | [diff] [blame] | 2982 | snprintf(path, sizeof(path), "/sys/dev/char/%d:%d/device", maj, min); |
Emil Velikov | 536e0de | 2015-09-07 12:37:57 +0100 | [diff] [blame] | 2983 | |
Thierry Reding | 5403cb3 | 2017-01-18 08:29:23 +0100 | [diff] [blame] | 2984 | value = sysfs_uevent_get(path, "PCI_SLOT_NAME"); |
| 2985 | if (!value) |
| 2986 | return -ENOENT; |
Emil Velikov | 536e0de | 2015-09-07 12:37:57 +0100 | [diff] [blame] | 2987 | |
Thierry Reding | 5403cb3 | 2017-01-18 08:29:23 +0100 | [diff] [blame] | 2988 | num = sscanf(value, "%04x:%02x:%02x.%1u", &domain, &bus, &dev, &func); |
| 2989 | free(value); |
| 2990 | |
| 2991 | if (num != 4) |
Emil Velikov | b556ea1 | 2015-08-17 11:09:06 +0800 | [diff] [blame] | 2992 | return -EINVAL; |
| 2993 | |
Emil Velikov | b556ea1 | 2015-08-17 11:09:06 +0800 | [diff] [blame] | 2994 | info->domain = domain; |
| 2995 | info->bus = bus; |
| 2996 | info->dev = dev; |
| 2997 | info->func = func; |
| 2998 | |
| 2999 | return 0; |
Jonathan Gray | fd19056 | 2016-12-01 15:18:42 +1100 | [diff] [blame] | 3000 | #elif defined(__OpenBSD__) |
| 3001 | struct drm_pciinfo pinfo; |
| 3002 | int fd, type; |
| 3003 | |
| 3004 | type = drmGetMinorType(min); |
| 3005 | if (type == -1) |
| 3006 | return -ENODEV; |
| 3007 | |
| 3008 | fd = drmOpenMinor(min, 0, type); |
| 3009 | if (fd < 0) |
| 3010 | return -errno; |
| 3011 | |
| 3012 | if (drmIoctl(fd, DRM_IOCTL_GET_PCIINFO, &pinfo)) { |
| 3013 | close(fd); |
| 3014 | return -errno; |
| 3015 | } |
| 3016 | close(fd); |
| 3017 | |
| 3018 | info->domain = pinfo.domain; |
| 3019 | info->bus = pinfo.bus; |
| 3020 | info->dev = pinfo.dev; |
| 3021 | info->func = pinfo.func; |
| 3022 | |
| 3023 | return 0; |
Emil Velikov | 291b2bb | 2015-09-07 18:26:34 +0100 | [diff] [blame] | 3024 | #else |
| 3025 | #warning "Missing implementation of drmParsePciBusInfo" |
| 3026 | return -EINVAL; |
| 3027 | #endif |
Emil Velikov | b556ea1 | 2015-08-17 11:09:06 +0800 | [diff] [blame] | 3028 | } |
| 3029 | |
Adam Jackson | 7c27cd7 | 2017-05-04 10:48:56 -0400 | [diff] [blame] | 3030 | int drmDevicesEqual(drmDevicePtr a, drmDevicePtr b) |
Emil Velikov | b556ea1 | 2015-08-17 11:09:06 +0800 | [diff] [blame] | 3031 | { |
Emil Velikov | bc2aca9 | 2015-09-07 13:51:54 +0100 | [diff] [blame] | 3032 | if (a == NULL || b == NULL) |
Adam Jackson | 7c27cd7 | 2017-05-04 10:48:56 -0400 | [diff] [blame] | 3033 | return 0; |
Emil Velikov | bc2aca9 | 2015-09-07 13:51:54 +0100 | [diff] [blame] | 3034 | |
Emil Velikov | b556ea1 | 2015-08-17 11:09:06 +0800 | [diff] [blame] | 3035 | if (a->bustype != b->bustype) |
Adam Jackson | 7c27cd7 | 2017-05-04 10:48:56 -0400 | [diff] [blame] | 3036 | return 0; |
Emil Velikov | b556ea1 | 2015-08-17 11:09:06 +0800 | [diff] [blame] | 3037 | |
| 3038 | switch (a->bustype) { |
| 3039 | case DRM_BUS_PCI: |
Adam Jackson | 7c27cd7 | 2017-05-04 10:48:56 -0400 | [diff] [blame] | 3040 | return memcmp(a->businfo.pci, b->businfo.pci, sizeof(drmPciBusInfo)) == 0; |
Thierry Reding | f8484cc | 2016-12-22 00:39:36 +0100 | [diff] [blame] | 3041 | |
| 3042 | case DRM_BUS_USB: |
Adam Jackson | 7c27cd7 | 2017-05-04 10:48:56 -0400 | [diff] [blame] | 3043 | return memcmp(a->businfo.usb, b->businfo.usb, sizeof(drmUsbBusInfo)) == 0; |
Thierry Reding | f8484cc | 2016-12-22 00:39:36 +0100 | [diff] [blame] | 3044 | |
Thierry Reding | 7b1f37f | 2016-12-21 17:59:04 +0100 | [diff] [blame] | 3045 | case DRM_BUS_PLATFORM: |
Adam Jackson | 7c27cd7 | 2017-05-04 10:48:56 -0400 | [diff] [blame] | 3046 | return memcmp(a->businfo.platform, b->businfo.platform, sizeof(drmPlatformBusInfo)) == 0; |
Thierry Reding | 7b1f37f | 2016-12-21 17:59:04 +0100 | [diff] [blame] | 3047 | |
| 3048 | case DRM_BUS_HOST1X: |
Adam Jackson | 7c27cd7 | 2017-05-04 10:48:56 -0400 | [diff] [blame] | 3049 | return memcmp(a->businfo.host1x, b->businfo.host1x, sizeof(drmHost1xBusInfo)) == 0; |
Thierry Reding | 7b1f37f | 2016-12-21 17:59:04 +0100 | [diff] [blame] | 3050 | |
Emil Velikov | b556ea1 | 2015-08-17 11:09:06 +0800 | [diff] [blame] | 3051 | default: |
| 3052 | break; |
| 3053 | } |
| 3054 | |
Adam Jackson | 7c27cd7 | 2017-05-04 10:48:56 -0400 | [diff] [blame] | 3055 | return 0; |
Emil Velikov | b556ea1 | 2015-08-17 11:09:06 +0800 | [diff] [blame] | 3056 | } |
| 3057 | |
| 3058 | static int drmGetNodeType(const char *name) |
| 3059 | { |
| 3060 | if (strncmp(name, DRM_PRIMARY_MINOR_NAME, |
| 3061 | sizeof(DRM_PRIMARY_MINOR_NAME) - 1) == 0) |
| 3062 | return DRM_NODE_PRIMARY; |
| 3063 | |
| 3064 | if (strncmp(name, DRM_CONTROL_MINOR_NAME, |
| 3065 | sizeof(DRM_CONTROL_MINOR_NAME ) - 1) == 0) |
| 3066 | return DRM_NODE_CONTROL; |
| 3067 | |
| 3068 | if (strncmp(name, DRM_RENDER_MINOR_NAME, |
| 3069 | sizeof(DRM_RENDER_MINOR_NAME) - 1) == 0) |
| 3070 | return DRM_NODE_RENDER; |
| 3071 | |
| 3072 | return -EINVAL; |
| 3073 | } |
| 3074 | |
Emil Velikov | 5f68d31 | 2015-09-07 13:54:32 +0100 | [diff] [blame] | 3075 | static int drmGetMaxNodeName(void) |
| 3076 | { |
| 3077 | return sizeof(DRM_DIR_NAME) + |
| 3078 | MAX3(sizeof(DRM_PRIMARY_MINOR_NAME), |
| 3079 | sizeof(DRM_CONTROL_MINOR_NAME), |
| 3080 | sizeof(DRM_RENDER_MINOR_NAME)) + |
Eric Engestrom | ce97507 | 2016-04-03 19:48:12 +0100 | [diff] [blame] | 3081 | 3 /* length of the node number */; |
Emil Velikov | 5f68d31 | 2015-09-07 13:54:32 +0100 | [diff] [blame] | 3082 | } |
| 3083 | |
Emil Velikov | 291b2bb | 2015-09-07 18:26:34 +0100 | [diff] [blame] | 3084 | #ifdef __linux__ |
Emil Velikov | aae3f31 | 2016-11-01 18:04:06 +0000 | [diff] [blame] | 3085 | static int parse_separate_sysfs_files(int maj, int min, |
Emil Velikov | 11687bf | 2016-11-30 17:24:21 +0000 | [diff] [blame] | 3086 | drmPciDeviceInfoPtr device, |
| 3087 | bool ignore_revision) |
Emil Velikov | aae3f31 | 2016-11-01 18:04:06 +0000 | [diff] [blame] | 3088 | { |
| 3089 | #define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0])) |
| 3090 | static const char *attrs[] = { |
| 3091 | "revision", /* Older kernels are missing the file, so check for it first */ |
| 3092 | "vendor", |
| 3093 | "device", |
| 3094 | "subsystem_vendor", |
| 3095 | "subsystem_device", |
| 3096 | }; |
| 3097 | char path[PATH_MAX + 1]; |
| 3098 | unsigned int data[ARRAY_SIZE(attrs)]; |
| 3099 | FILE *fp; |
| 3100 | int ret; |
| 3101 | |
Emil Velikov | 11687bf | 2016-11-30 17:24:21 +0000 | [diff] [blame] | 3102 | for (unsigned i = ignore_revision ? 1 : 0; i < ARRAY_SIZE(attrs); i++) { |
Emil Velikov | aae3f31 | 2016-11-01 18:04:06 +0000 | [diff] [blame] | 3103 | snprintf(path, PATH_MAX, "/sys/dev/char/%d:%d/device/%s", maj, min, |
| 3104 | attrs[i]); |
| 3105 | fp = fopen(path, "r"); |
| 3106 | if (!fp) |
| 3107 | return -errno; |
| 3108 | |
| 3109 | ret = fscanf(fp, "%x", &data[i]); |
| 3110 | fclose(fp); |
| 3111 | if (ret != 1) |
| 3112 | return -errno; |
| 3113 | |
| 3114 | } |
| 3115 | |
Emil Velikov | 11687bf | 2016-11-30 17:24:21 +0000 | [diff] [blame] | 3116 | device->revision_id = ignore_revision ? 0xff : data[0] & 0xff; |
Emil Velikov | aae3f31 | 2016-11-01 18:04:06 +0000 | [diff] [blame] | 3117 | device->vendor_id = data[1] & 0xffff; |
| 3118 | device->device_id = data[2] & 0xffff; |
| 3119 | device->subvendor_id = data[3] & 0xffff; |
| 3120 | device->subdevice_id = data[4] & 0xffff; |
| 3121 | |
| 3122 | return 0; |
| 3123 | } |
| 3124 | |
| 3125 | static int parse_config_sysfs_file(int maj, int min, |
| 3126 | drmPciDeviceInfoPtr device) |
| 3127 | { |
Emil Velikov | ef5192e | 2015-09-07 12:47:47 +0100 | [diff] [blame] | 3128 | char path[PATH_MAX + 1]; |
| 3129 | unsigned char config[64]; |
| 3130 | int fd, ret; |
| 3131 | |
Emil Velikov | b40a65d | 2016-11-30 16:41:27 +0000 | [diff] [blame] | 3132 | snprintf(path, PATH_MAX, "/sys/dev/char/%d:%d/device/config", maj, min); |
Emil Velikov | ef5192e | 2015-09-07 12:47:47 +0100 | [diff] [blame] | 3133 | fd = open(path, O_RDONLY); |
| 3134 | if (fd < 0) |
| 3135 | return -errno; |
| 3136 | |
| 3137 | ret = read(fd, config, sizeof(config)); |
| 3138 | close(fd); |
| 3139 | if (ret < 0) |
| 3140 | return -errno; |
Emil Velikov | b556ea1 | 2015-08-17 11:09:06 +0800 | [diff] [blame] | 3141 | |
| 3142 | device->vendor_id = config[0] | (config[1] << 8); |
| 3143 | device->device_id = config[2] | (config[3] << 8); |
| 3144 | device->revision_id = config[8]; |
| 3145 | device->subvendor_id = config[44] | (config[45] << 8); |
| 3146 | device->subdevice_id = config[46] | (config[47] << 8); |
| 3147 | |
| 3148 | return 0; |
Emil Velikov | aae3f31 | 2016-11-01 18:04:06 +0000 | [diff] [blame] | 3149 | } |
| 3150 | #endif |
| 3151 | |
| 3152 | static int drmParsePciDeviceInfo(int maj, int min, |
| 3153 | drmPciDeviceInfoPtr device, |
| 3154 | uint32_t flags) |
| 3155 | { |
| 3156 | #ifdef __linux__ |
Emil Velikov | 11687bf | 2016-11-30 17:24:21 +0000 | [diff] [blame] | 3157 | if (!(flags & DRM_DEVICE_GET_PCI_REVISION)) |
| 3158 | return parse_separate_sysfs_files(maj, min, device, true); |
| 3159 | |
| 3160 | if (parse_separate_sysfs_files(maj, min, device, false)) |
Emil Velikov | aae3f31 | 2016-11-01 18:04:06 +0000 | [diff] [blame] | 3161 | return parse_config_sysfs_file(maj, min, device); |
| 3162 | |
| 3163 | return 0; |
Jonathan Gray | c0ef1d0 | 2016-12-01 15:18:41 +1100 | [diff] [blame] | 3164 | #elif defined(__OpenBSD__) |
| 3165 | struct drm_pciinfo pinfo; |
| 3166 | int fd, type; |
| 3167 | |
| 3168 | type = drmGetMinorType(min); |
| 3169 | if (type == -1) |
| 3170 | return -ENODEV; |
| 3171 | |
| 3172 | fd = drmOpenMinor(min, 0, type); |
| 3173 | if (fd < 0) |
| 3174 | return -errno; |
| 3175 | |
| 3176 | if (drmIoctl(fd, DRM_IOCTL_GET_PCIINFO, &pinfo)) { |
| 3177 | close(fd); |
| 3178 | return -errno; |
| 3179 | } |
| 3180 | close(fd); |
| 3181 | |
| 3182 | device->vendor_id = pinfo.vendor_id; |
| 3183 | device->device_id = pinfo.device_id; |
| 3184 | device->revision_id = pinfo.revision_id; |
| 3185 | device->subvendor_id = pinfo.subvendor_id; |
| 3186 | device->subdevice_id = pinfo.subdevice_id; |
| 3187 | |
| 3188 | return 0; |
Emil Velikov | 291b2bb | 2015-09-07 18:26:34 +0100 | [diff] [blame] | 3189 | #else |
| 3190 | #warning "Missing implementation of drmParsePciDeviceInfo" |
| 3191 | return -EINVAL; |
| 3192 | #endif |
Emil Velikov | b556ea1 | 2015-08-17 11:09:06 +0800 | [diff] [blame] | 3193 | } |
| 3194 | |
Thierry Reding | 7b1f37f | 2016-12-21 17:59:04 +0100 | [diff] [blame] | 3195 | static void drmFreePlatformDevice(drmDevicePtr device) |
| 3196 | { |
| 3197 | if (device->deviceinfo.platform) { |
| 3198 | if (device->deviceinfo.platform->compatible) { |
| 3199 | char **compatible = device->deviceinfo.platform->compatible; |
| 3200 | |
| 3201 | while (*compatible) { |
| 3202 | free(*compatible); |
| 3203 | compatible++; |
| 3204 | } |
| 3205 | |
| 3206 | free(device->deviceinfo.platform->compatible); |
| 3207 | } |
| 3208 | } |
| 3209 | } |
| 3210 | |
| 3211 | static void drmFreeHost1xDevice(drmDevicePtr device) |
| 3212 | { |
| 3213 | if (device->deviceinfo.host1x) { |
| 3214 | if (device->deviceinfo.host1x->compatible) { |
| 3215 | char **compatible = device->deviceinfo.host1x->compatible; |
| 3216 | |
| 3217 | while (*compatible) { |
| 3218 | free(*compatible); |
| 3219 | compatible++; |
| 3220 | } |
| 3221 | |
| 3222 | free(device->deviceinfo.host1x->compatible); |
| 3223 | } |
| 3224 | } |
| 3225 | } |
| 3226 | |
Emil Velikov | ccedf66 | 2015-09-09 16:02:18 +0100 | [diff] [blame] | 3227 | void drmFreeDevice(drmDevicePtr *device) |
Emil Velikov | b556ea1 | 2015-08-17 11:09:06 +0800 | [diff] [blame] | 3228 | { |
Emil Velikov | b556ea1 | 2015-08-17 11:09:06 +0800 | [diff] [blame] | 3229 | if (device == NULL) |
| 3230 | return; |
| 3231 | |
Thierry Reding | 7b1f37f | 2016-12-21 17:59:04 +0100 | [diff] [blame] | 3232 | if (*device) { |
| 3233 | switch ((*device)->bustype) { |
| 3234 | case DRM_BUS_PLATFORM: |
| 3235 | drmFreePlatformDevice(*device); |
| 3236 | break; |
| 3237 | |
| 3238 | case DRM_BUS_HOST1X: |
| 3239 | drmFreeHost1xDevice(*device); |
| 3240 | break; |
| 3241 | } |
| 3242 | } |
| 3243 | |
Emil Velikov | 5f68d31 | 2015-09-07 13:54:32 +0100 | [diff] [blame] | 3244 | free(*device); |
| 3245 | *device = NULL; |
Emil Velikov | b556ea1 | 2015-08-17 11:09:06 +0800 | [diff] [blame] | 3246 | } |
| 3247 | |
| 3248 | void drmFreeDevices(drmDevicePtr devices[], int count) |
| 3249 | { |
| 3250 | int i; |
| 3251 | |
| 3252 | if (devices == NULL) |
| 3253 | return; |
| 3254 | |
Qiang Yu | 6c056ee | 2016-07-14 17:10:56 +0800 | [diff] [blame] | 3255 | for (i = 0; i < count; i++) |
| 3256 | if (devices[i]) |
| 3257 | drmFreeDevice(&devices[i]); |
Emil Velikov | b556ea1 | 2015-08-17 11:09:06 +0800 | [diff] [blame] | 3258 | } |
| 3259 | |
Thierry Reding | 2e57bba | 2016-12-21 17:54:48 +0100 | [diff] [blame] | 3260 | static drmDevicePtr drmDeviceAlloc(unsigned int type, const char *node, |
| 3261 | size_t bus_size, size_t device_size, |
| 3262 | char **ptrp) |
| 3263 | { |
| 3264 | size_t max_node_length, extra, size; |
| 3265 | drmDevicePtr device; |
| 3266 | unsigned int i; |
| 3267 | char *ptr; |
| 3268 | |
| 3269 | max_node_length = ALIGN(drmGetMaxNodeName(), sizeof(void *)); |
| 3270 | extra = DRM_NODE_MAX * (sizeof(void *) + max_node_length); |
| 3271 | |
| 3272 | size = sizeof(*device) + extra + bus_size + device_size; |
| 3273 | |
| 3274 | device = calloc(1, size); |
| 3275 | if (!device) |
| 3276 | return NULL; |
| 3277 | |
| 3278 | device->available_nodes = 1 << type; |
| 3279 | |
| 3280 | ptr = (char *)device + sizeof(*device); |
| 3281 | device->nodes = (char **)ptr; |
| 3282 | |
| 3283 | ptr += DRM_NODE_MAX * sizeof(void *); |
| 3284 | |
| 3285 | for (i = 0; i < DRM_NODE_MAX; i++) { |
| 3286 | device->nodes[i] = ptr; |
| 3287 | ptr += max_node_length; |
| 3288 | } |
| 3289 | |
| 3290 | memcpy(device->nodes[type], node, max_node_length); |
| 3291 | |
| 3292 | *ptrp = ptr; |
| 3293 | |
| 3294 | return device; |
| 3295 | } |
| 3296 | |
Emil Velikov | b40a65d | 2016-11-30 16:41:27 +0000 | [diff] [blame] | 3297 | static int drmProcessPciDevice(drmDevicePtr *device, |
Emil Velikov | fae59d7 | 2015-09-09 17:54:34 +0100 | [diff] [blame] | 3298 | const char *node, int node_type, |
Emil Velikov | 138d231 | 2016-11-30 17:13:51 +0000 | [diff] [blame] | 3299 | int maj, int min, bool fetch_deviceinfo, |
| 3300 | uint32_t flags) |
Emil Velikov | fae59d7 | 2015-09-09 17:54:34 +0100 | [diff] [blame] | 3301 | { |
Thierry Reding | 2e57bba | 2016-12-21 17:54:48 +0100 | [diff] [blame] | 3302 | drmDevicePtr dev; |
Michel Dänzer | 3045523 | 2015-10-14 12:48:52 +0900 | [diff] [blame] | 3303 | char *addr; |
Thierry Reding | 2e57bba | 2016-12-21 17:54:48 +0100 | [diff] [blame] | 3304 | int ret; |
Emil Velikov | fae59d7 | 2015-09-09 17:54:34 +0100 | [diff] [blame] | 3305 | |
Thierry Reding | 2e57bba | 2016-12-21 17:54:48 +0100 | [diff] [blame] | 3306 | dev = drmDeviceAlloc(node_type, node, sizeof(drmPciBusInfo), |
| 3307 | sizeof(drmPciDeviceInfo), &addr); |
| 3308 | if (!dev) |
Emil Velikov | fae59d7 | 2015-09-09 17:54:34 +0100 | [diff] [blame] | 3309 | return -ENOMEM; |
| 3310 | |
Thierry Reding | 2e57bba | 2016-12-21 17:54:48 +0100 | [diff] [blame] | 3311 | dev->bustype = DRM_BUS_PCI; |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 3312 | |
Thierry Reding | 2e57bba | 2016-12-21 17:54:48 +0100 | [diff] [blame] | 3313 | dev->businfo.pci = (drmPciBusInfoPtr)addr; |
Emil Velikov | fae59d7 | 2015-09-09 17:54:34 +0100 | [diff] [blame] | 3314 | |
Thierry Reding | 2e57bba | 2016-12-21 17:54:48 +0100 | [diff] [blame] | 3315 | ret = drmParsePciBusInfo(maj, min, dev->businfo.pci); |
Emil Velikov | fae59d7 | 2015-09-09 17:54:34 +0100 | [diff] [blame] | 3316 | if (ret) |
| 3317 | goto free_device; |
| 3318 | |
| 3319 | // Fetch the device info if the user has requested it |
| 3320 | if (fetch_deviceinfo) { |
| 3321 | addr += sizeof(drmPciBusInfo); |
Thierry Reding | 2e57bba | 2016-12-21 17:54:48 +0100 | [diff] [blame] | 3322 | dev->deviceinfo.pci = (drmPciDeviceInfoPtr)addr; |
Emil Velikov | fae59d7 | 2015-09-09 17:54:34 +0100 | [diff] [blame] | 3323 | |
Thierry Reding | 2e57bba | 2016-12-21 17:54:48 +0100 | [diff] [blame] | 3324 | ret = drmParsePciDeviceInfo(maj, min, dev->deviceinfo.pci, flags); |
Emil Velikov | fae59d7 | 2015-09-09 17:54:34 +0100 | [diff] [blame] | 3325 | if (ret) |
| 3326 | goto free_device; |
| 3327 | } |
Thierry Reding | 2e57bba | 2016-12-21 17:54:48 +0100 | [diff] [blame] | 3328 | |
| 3329 | *device = dev; |
| 3330 | |
Emil Velikov | fae59d7 | 2015-09-09 17:54:34 +0100 | [diff] [blame] | 3331 | return 0; |
| 3332 | |
| 3333 | free_device: |
Thierry Reding | 2e57bba | 2016-12-21 17:54:48 +0100 | [diff] [blame] | 3334 | free(dev); |
Emil Velikov | fae59d7 | 2015-09-09 17:54:34 +0100 | [diff] [blame] | 3335 | return ret; |
| 3336 | } |
| 3337 | |
Thierry Reding | f8484cc | 2016-12-22 00:39:36 +0100 | [diff] [blame] | 3338 | static int drmParseUsbBusInfo(int maj, int min, drmUsbBusInfoPtr info) |
| 3339 | { |
| 3340 | #ifdef __linux__ |
| 3341 | char path[PATH_MAX + 1], *value; |
| 3342 | unsigned int bus, dev; |
| 3343 | int ret; |
| 3344 | |
| 3345 | snprintf(path, sizeof(path), "/sys/dev/char/%d:%d/device", maj, min); |
| 3346 | |
| 3347 | value = sysfs_uevent_get(path, "BUSNUM"); |
| 3348 | if (!value) |
| 3349 | return -ENOENT; |
| 3350 | |
| 3351 | ret = sscanf(value, "%03u", &bus); |
| 3352 | free(value); |
| 3353 | |
| 3354 | if (ret <= 0) |
| 3355 | return -errno; |
| 3356 | |
| 3357 | value = sysfs_uevent_get(path, "DEVNUM"); |
| 3358 | if (!value) |
| 3359 | return -ENOENT; |
| 3360 | |
| 3361 | ret = sscanf(value, "%03u", &dev); |
| 3362 | free(value); |
| 3363 | |
| 3364 | if (ret <= 0) |
| 3365 | return -errno; |
| 3366 | |
| 3367 | info->bus = bus; |
| 3368 | info->dev = dev; |
| 3369 | |
| 3370 | return 0; |
| 3371 | #else |
| 3372 | #warning "Missing implementation of drmParseUsbBusInfo" |
| 3373 | return -EINVAL; |
| 3374 | #endif |
| 3375 | } |
| 3376 | |
| 3377 | static int drmParseUsbDeviceInfo(int maj, int min, drmUsbDeviceInfoPtr info) |
| 3378 | { |
| 3379 | #ifdef __linux__ |
| 3380 | char path[PATH_MAX + 1], *value; |
| 3381 | unsigned int vendor, product; |
| 3382 | int ret; |
| 3383 | |
| 3384 | snprintf(path, sizeof(path), "/sys/dev/char/%d:%d/device", maj, min); |
| 3385 | |
| 3386 | value = sysfs_uevent_get(path, "PRODUCT"); |
| 3387 | if (!value) |
| 3388 | return -ENOENT; |
| 3389 | |
| 3390 | ret = sscanf(value, "%x/%x", &vendor, &product); |
| 3391 | free(value); |
| 3392 | |
| 3393 | if (ret <= 0) |
| 3394 | return -errno; |
| 3395 | |
| 3396 | info->vendor = vendor; |
| 3397 | info->product = product; |
| 3398 | |
| 3399 | return 0; |
| 3400 | #else |
| 3401 | #warning "Missing implementation of drmParseUsbDeviceInfo" |
| 3402 | return -EINVAL; |
| 3403 | #endif |
| 3404 | } |
| 3405 | |
| 3406 | static int drmProcessUsbDevice(drmDevicePtr *device, const char *node, |
| 3407 | int node_type, int maj, int min, |
| 3408 | bool fetch_deviceinfo, uint32_t flags) |
| 3409 | { |
| 3410 | drmDevicePtr dev; |
| 3411 | char *ptr; |
| 3412 | int ret; |
| 3413 | |
| 3414 | dev = drmDeviceAlloc(node_type, node, sizeof(drmUsbBusInfo), |
| 3415 | sizeof(drmUsbDeviceInfo), &ptr); |
| 3416 | if (!dev) |
| 3417 | return -ENOMEM; |
| 3418 | |
| 3419 | dev->bustype = DRM_BUS_USB; |
| 3420 | |
| 3421 | dev->businfo.usb = (drmUsbBusInfoPtr)ptr; |
| 3422 | |
| 3423 | ret = drmParseUsbBusInfo(maj, min, dev->businfo.usb); |
| 3424 | if (ret < 0) |
| 3425 | goto free_device; |
| 3426 | |
| 3427 | if (fetch_deviceinfo) { |
| 3428 | ptr += sizeof(drmUsbBusInfo); |
| 3429 | dev->deviceinfo.usb = (drmUsbDeviceInfoPtr)ptr; |
| 3430 | |
| 3431 | ret = drmParseUsbDeviceInfo(maj, min, dev->deviceinfo.usb); |
| 3432 | if (ret < 0) |
| 3433 | goto free_device; |
| 3434 | } |
| 3435 | |
| 3436 | *device = dev; |
| 3437 | |
| 3438 | return 0; |
| 3439 | |
| 3440 | free_device: |
| 3441 | free(dev); |
| 3442 | return ret; |
| 3443 | } |
| 3444 | |
Thierry Reding | 7b1f37f | 2016-12-21 17:59:04 +0100 | [diff] [blame] | 3445 | static int drmParsePlatformBusInfo(int maj, int min, drmPlatformBusInfoPtr info) |
| 3446 | { |
| 3447 | #ifdef __linux__ |
| 3448 | char path[PATH_MAX + 1], *name; |
| 3449 | |
| 3450 | snprintf(path, sizeof(path), "/sys/dev/char/%d:%d/device", maj, min); |
| 3451 | |
| 3452 | name = sysfs_uevent_get(path, "OF_FULLNAME"); |
| 3453 | if (!name) |
| 3454 | return -ENOENT; |
| 3455 | |
| 3456 | strncpy(info->fullname, name, DRM_PLATFORM_DEVICE_NAME_LEN); |
| 3457 | info->fullname[DRM_PLATFORM_DEVICE_NAME_LEN - 1] = '\0'; |
| 3458 | free(name); |
| 3459 | |
| 3460 | return 0; |
| 3461 | #else |
| 3462 | #warning "Missing implementation of drmParsePlatformBusInfo" |
| 3463 | return -EINVAL; |
| 3464 | #endif |
| 3465 | } |
| 3466 | |
| 3467 | static int drmParsePlatformDeviceInfo(int maj, int min, |
| 3468 | drmPlatformDeviceInfoPtr info) |
| 3469 | { |
| 3470 | #ifdef __linux__ |
| 3471 | char path[PATH_MAX + 1], *value; |
| 3472 | unsigned int count, i; |
| 3473 | int err; |
| 3474 | |
| 3475 | snprintf(path, sizeof(path), "/sys/dev/char/%d:%d/device", maj, min); |
| 3476 | |
| 3477 | value = sysfs_uevent_get(path, "OF_COMPATIBLE_N"); |
| 3478 | if (!value) |
| 3479 | return -ENOENT; |
| 3480 | |
| 3481 | sscanf(value, "%u", &count); |
| 3482 | free(value); |
| 3483 | |
| 3484 | info->compatible = calloc(count + 1, sizeof(*info->compatible)); |
| 3485 | if (!info->compatible) |
| 3486 | return -ENOMEM; |
| 3487 | |
| 3488 | for (i = 0; i < count; i++) { |
| 3489 | value = sysfs_uevent_get(path, "OF_COMPATIBLE_%u", i); |
| 3490 | if (!value) { |
| 3491 | err = -ENOENT; |
| 3492 | goto free; |
| 3493 | } |
| 3494 | |
| 3495 | info->compatible[i] = value; |
| 3496 | } |
| 3497 | |
| 3498 | return 0; |
| 3499 | |
| 3500 | free: |
| 3501 | while (i--) |
| 3502 | free(info->compatible[i]); |
| 3503 | |
| 3504 | free(info->compatible); |
| 3505 | return err; |
| 3506 | #else |
| 3507 | #warning "Missing implementation of drmParsePlatformDeviceInfo" |
| 3508 | return -EINVAL; |
| 3509 | #endif |
| 3510 | } |
| 3511 | |
| 3512 | static int drmProcessPlatformDevice(drmDevicePtr *device, |
| 3513 | const char *node, int node_type, |
| 3514 | int maj, int min, bool fetch_deviceinfo, |
| 3515 | uint32_t flags) |
| 3516 | { |
| 3517 | drmDevicePtr dev; |
| 3518 | char *ptr; |
| 3519 | int ret; |
| 3520 | |
| 3521 | dev = drmDeviceAlloc(node_type, node, sizeof(drmPlatformBusInfo), |
| 3522 | sizeof(drmPlatformDeviceInfo), &ptr); |
| 3523 | if (!dev) |
| 3524 | return -ENOMEM; |
| 3525 | |
| 3526 | dev->bustype = DRM_BUS_PLATFORM; |
| 3527 | |
| 3528 | dev->businfo.platform = (drmPlatformBusInfoPtr)ptr; |
| 3529 | |
| 3530 | ret = drmParsePlatformBusInfo(maj, min, dev->businfo.platform); |
| 3531 | if (ret < 0) |
| 3532 | goto free_device; |
| 3533 | |
| 3534 | if (fetch_deviceinfo) { |
| 3535 | ptr += sizeof(drmPlatformBusInfo); |
| 3536 | dev->deviceinfo.platform = (drmPlatformDeviceInfoPtr)ptr; |
| 3537 | |
| 3538 | ret = drmParsePlatformDeviceInfo(maj, min, dev->deviceinfo.platform); |
| 3539 | if (ret < 0) |
| 3540 | goto free_device; |
| 3541 | } |
| 3542 | |
| 3543 | *device = dev; |
| 3544 | |
| 3545 | return 0; |
| 3546 | |
| 3547 | free_device: |
| 3548 | free(dev); |
| 3549 | return ret; |
| 3550 | } |
| 3551 | |
| 3552 | static int drmParseHost1xBusInfo(int maj, int min, drmHost1xBusInfoPtr info) |
| 3553 | { |
| 3554 | #ifdef __linux__ |
| 3555 | char path[PATH_MAX + 1], *name; |
| 3556 | |
| 3557 | snprintf(path, sizeof(path), "/sys/dev/char/%d:%d/device", maj, min); |
| 3558 | |
| 3559 | name = sysfs_uevent_get(path, "OF_FULLNAME"); |
| 3560 | if (!name) |
| 3561 | return -ENOENT; |
| 3562 | |
| 3563 | strncpy(info->fullname, name, DRM_HOST1X_DEVICE_NAME_LEN); |
| 3564 | info->fullname[DRM_HOST1X_DEVICE_NAME_LEN - 1] = '\0'; |
| 3565 | free(name); |
| 3566 | |
| 3567 | return 0; |
| 3568 | #else |
| 3569 | #warning "Missing implementation of drmParseHost1xBusInfo" |
| 3570 | return -EINVAL; |
| 3571 | #endif |
| 3572 | } |
| 3573 | |
| 3574 | static int drmParseHost1xDeviceInfo(int maj, int min, |
| 3575 | drmHost1xDeviceInfoPtr info) |
| 3576 | { |
| 3577 | #ifdef __linux__ |
| 3578 | char path[PATH_MAX + 1], *value; |
| 3579 | unsigned int count, i; |
| 3580 | int err; |
| 3581 | |
| 3582 | snprintf(path, sizeof(path), "/sys/dev/char/%d:%d/device", maj, min); |
| 3583 | |
| 3584 | value = sysfs_uevent_get(path, "OF_COMPATIBLE_N"); |
| 3585 | if (!value) |
| 3586 | return -ENOENT; |
| 3587 | |
| 3588 | sscanf(value, "%u", &count); |
| 3589 | free(value); |
| 3590 | |
| 3591 | info->compatible = calloc(count + 1, sizeof(*info->compatible)); |
| 3592 | if (!info->compatible) |
| 3593 | return -ENOMEM; |
| 3594 | |
| 3595 | for (i = 0; i < count; i++) { |
| 3596 | value = sysfs_uevent_get(path, "OF_COMPATIBLE_%u", i); |
| 3597 | if (!value) { |
| 3598 | err = -ENOENT; |
| 3599 | goto free; |
| 3600 | } |
| 3601 | |
| 3602 | info->compatible[i] = value; |
| 3603 | } |
| 3604 | |
| 3605 | return 0; |
| 3606 | |
| 3607 | free: |
| 3608 | while (i--) |
| 3609 | free(info->compatible[i]); |
| 3610 | |
| 3611 | free(info->compatible); |
| 3612 | return err; |
| 3613 | #else |
| 3614 | #warning "Missing implementation of drmParseHost1xDeviceInfo" |
| 3615 | return -EINVAL; |
| 3616 | #endif |
| 3617 | } |
| 3618 | |
| 3619 | static int drmProcessHost1xDevice(drmDevicePtr *device, |
| 3620 | const char *node, int node_type, |
| 3621 | int maj, int min, bool fetch_deviceinfo, |
| 3622 | uint32_t flags) |
| 3623 | { |
| 3624 | drmDevicePtr dev; |
| 3625 | char *ptr; |
| 3626 | int ret; |
| 3627 | |
| 3628 | dev = drmDeviceAlloc(node_type, node, sizeof(drmHost1xBusInfo), |
| 3629 | sizeof(drmHost1xDeviceInfo), &ptr); |
| 3630 | if (!dev) |
| 3631 | return -ENOMEM; |
| 3632 | |
| 3633 | dev->bustype = DRM_BUS_HOST1X; |
| 3634 | |
| 3635 | dev->businfo.host1x = (drmHost1xBusInfoPtr)ptr; |
| 3636 | |
| 3637 | ret = drmParseHost1xBusInfo(maj, min, dev->businfo.host1x); |
| 3638 | if (ret < 0) |
| 3639 | goto free_device; |
| 3640 | |
| 3641 | if (fetch_deviceinfo) { |
| 3642 | ptr += sizeof(drmHost1xBusInfo); |
| 3643 | dev->deviceinfo.host1x = (drmHost1xDeviceInfoPtr)ptr; |
| 3644 | |
| 3645 | ret = drmParseHost1xDeviceInfo(maj, min, dev->deviceinfo.host1x); |
| 3646 | if (ret < 0) |
| 3647 | goto free_device; |
| 3648 | } |
| 3649 | |
| 3650 | *device = dev; |
| 3651 | |
| 3652 | return 0; |
| 3653 | |
| 3654 | free_device: |
| 3655 | free(dev); |
| 3656 | return ret; |
| 3657 | } |
| 3658 | |
Qiang Yu | 3c20893 | 2016-07-14 17:10:55 +0800 | [diff] [blame] | 3659 | /* Consider devices located on the same bus as duplicate and fold the respective |
| 3660 | * entries into a single one. |
| 3661 | * |
| 3662 | * Note: this leaves "gaps" in the array, while preserving the length. |
| 3663 | */ |
Emil Velikov | fae59d7 | 2015-09-09 17:54:34 +0100 | [diff] [blame] | 3664 | static void drmFoldDuplicatedDevices(drmDevicePtr local_devices[], int count) |
| 3665 | { |
| 3666 | int node_type, i, j; |
| 3667 | |
| 3668 | for (i = 0; i < count; i++) { |
| 3669 | for (j = i + 1; j < count; j++) { |
Adam Jackson | a2fa2e0 | 2017-05-04 15:57:14 -0400 | [diff] [blame] | 3670 | if (drmDevicesEqual(local_devices[i], local_devices[j])) { |
Emil Velikov | fae59d7 | 2015-09-09 17:54:34 +0100 | [diff] [blame] | 3671 | local_devices[i]->available_nodes |= local_devices[j]->available_nodes; |
| 3672 | node_type = log2(local_devices[j]->available_nodes); |
| 3673 | memcpy(local_devices[i]->nodes[node_type], |
| 3674 | local_devices[j]->nodes[node_type], drmGetMaxNodeName()); |
| 3675 | drmFreeDevice(&local_devices[j]); |
| 3676 | } |
| 3677 | } |
| 3678 | } |
| 3679 | } |
| 3680 | |
Emil Velikov | 11687bf | 2016-11-30 17:24:21 +0000 | [diff] [blame] | 3681 | /* Check that the given flags are valid returning 0 on success */ |
| 3682 | static int |
| 3683 | drm_device_validate_flags(uint32_t flags) |
| 3684 | { |
| 3685 | return (flags & ~DRM_DEVICE_GET_PCI_REVISION); |
| 3686 | } |
| 3687 | |
Emil Velikov | b556ea1 | 2015-08-17 11:09:06 +0800 | [diff] [blame] | 3688 | /** |
Emil Velikov | ccedf66 | 2015-09-09 16:02:18 +0100 | [diff] [blame] | 3689 | * Get information about the opened drm device |
| 3690 | * |
| 3691 | * \param fd file descriptor of the drm device |
Emil Velikov | 11687bf | 2016-11-30 17:24:21 +0000 | [diff] [blame] | 3692 | * \param flags feature/behaviour bitmask |
Emil Velikov | ccedf66 | 2015-09-09 16:02:18 +0100 | [diff] [blame] | 3693 | * \param device the address of a drmDevicePtr where the information |
| 3694 | * will be allocated in stored |
| 3695 | * |
| 3696 | * \return zero on success, negative error code otherwise. |
Emil Velikov | 11687bf | 2016-11-30 17:24:21 +0000 | [diff] [blame] | 3697 | * |
| 3698 | * \note Unlike drmGetDevice it does not retrieve the pci device revision field |
| 3699 | * unless the DRM_DEVICE_GET_PCI_REVISION \p flag is set. |
Emil Velikov | ccedf66 | 2015-09-09 16:02:18 +0100 | [diff] [blame] | 3700 | */ |
Emil Velikov | 11687bf | 2016-11-30 17:24:21 +0000 | [diff] [blame] | 3701 | int drmGetDevice2(int fd, uint32_t flags, drmDevicePtr *device) |
Emil Velikov | ccedf66 | 2015-09-09 16:02:18 +0100 | [diff] [blame] | 3702 | { |
Jonathan Gray | 0825792 | 2016-12-01 15:18:43 +1100 | [diff] [blame] | 3703 | #ifdef __OpenBSD__ |
| 3704 | /* |
| 3705 | * DRI device nodes on OpenBSD are not in their own directory, they reside |
| 3706 | * in /dev along with a large number of statically generated /dev nodes. |
| 3707 | * Avoid stat'ing all of /dev needlessly by implementing this custom path. |
| 3708 | */ |
| 3709 | drmDevicePtr d; |
| 3710 | struct stat sbuf; |
| 3711 | char node[PATH_MAX + 1]; |
| 3712 | const char *dev_name; |
| 3713 | int node_type, subsystem_type; |
Jonathan Gray | d5cf3f9 | 2016-12-17 16:09:51 +1100 | [diff] [blame] | 3714 | int maj, min, n, ret, base; |
Jonathan Gray | 0825792 | 2016-12-01 15:18:43 +1100 | [diff] [blame] | 3715 | |
| 3716 | if (fd == -1 || device == NULL) |
| 3717 | return -EINVAL; |
| 3718 | |
| 3719 | if (fstat(fd, &sbuf)) |
| 3720 | return -errno; |
| 3721 | |
| 3722 | maj = major(sbuf.st_rdev); |
| 3723 | min = minor(sbuf.st_rdev); |
| 3724 | |
| 3725 | if (maj != DRM_MAJOR || !S_ISCHR(sbuf.st_mode)) |
| 3726 | return -EINVAL; |
| 3727 | |
| 3728 | node_type = drmGetMinorType(min); |
| 3729 | if (node_type == -1) |
| 3730 | return -ENODEV; |
| 3731 | |
| 3732 | switch (node_type) { |
| 3733 | case DRM_NODE_PRIMARY: |
| 3734 | dev_name = DRM_DEV_NAME; |
| 3735 | break; |
| 3736 | case DRM_NODE_CONTROL: |
| 3737 | dev_name = DRM_CONTROL_DEV_NAME; |
| 3738 | break; |
| 3739 | case DRM_NODE_RENDER: |
| 3740 | dev_name = DRM_RENDER_DEV_NAME; |
| 3741 | break; |
| 3742 | default: |
| 3743 | return -EINVAL; |
| 3744 | }; |
| 3745 | |
Jonathan Gray | d5cf3f9 | 2016-12-17 16:09:51 +1100 | [diff] [blame] | 3746 | base = drmGetMinorBase(node_type); |
| 3747 | if (base < 0) |
| 3748 | return -EINVAL; |
| 3749 | |
| 3750 | n = snprintf(node, PATH_MAX, dev_name, DRM_DIR_NAME, min - base); |
Jonathan Gray | 0825792 | 2016-12-01 15:18:43 +1100 | [diff] [blame] | 3751 | if (n == -1 || n >= PATH_MAX) |
| 3752 | return -errno; |
| 3753 | if (stat(node, &sbuf)) |
| 3754 | return -EINVAL; |
| 3755 | |
| 3756 | subsystem_type = drmParseSubsystemType(maj, min); |
| 3757 | if (subsystem_type != DRM_BUS_PCI) |
| 3758 | return -ENODEV; |
| 3759 | |
| 3760 | ret = drmProcessPciDevice(&d, node, node_type, maj, min, true, flags); |
| 3761 | if (ret) |
| 3762 | return ret; |
| 3763 | |
| 3764 | *device = d; |
| 3765 | |
| 3766 | return 0; |
| 3767 | #else |
Emil Velikov | ccedf66 | 2015-09-09 16:02:18 +0100 | [diff] [blame] | 3768 | drmDevicePtr *local_devices; |
| 3769 | drmDevicePtr d; |
| 3770 | DIR *sysdir; |
| 3771 | struct dirent *dent; |
| 3772 | struct stat sbuf; |
| 3773 | char node[PATH_MAX + 1]; |
| 3774 | int node_type, subsystem_type; |
| 3775 | int maj, min; |
| 3776 | int ret, i, node_count; |
| 3777 | int max_count = 16; |
Qiang Yu | 3c20893 | 2016-07-14 17:10:55 +0800 | [diff] [blame] | 3778 | dev_t find_rdev; |
Emil Velikov | 11687bf | 2016-11-30 17:24:21 +0000 | [diff] [blame] | 3779 | |
| 3780 | if (drm_device_validate_flags(flags)) |
| 3781 | return -EINVAL; |
Emil Velikov | ccedf66 | 2015-09-09 16:02:18 +0100 | [diff] [blame] | 3782 | |
| 3783 | if (fd == -1 || device == NULL) |
| 3784 | return -EINVAL; |
| 3785 | |
| 3786 | if (fstat(fd, &sbuf)) |
| 3787 | return -errno; |
| 3788 | |
Qiang Yu | 3c20893 | 2016-07-14 17:10:55 +0800 | [diff] [blame] | 3789 | find_rdev = sbuf.st_rdev; |
Emil Velikov | ccedf66 | 2015-09-09 16:02:18 +0100 | [diff] [blame] | 3790 | maj = major(sbuf.st_rdev); |
| 3791 | min = minor(sbuf.st_rdev); |
| 3792 | |
| 3793 | if (maj != DRM_MAJOR || !S_ISCHR(sbuf.st_mode)) |
| 3794 | return -EINVAL; |
| 3795 | |
| 3796 | subsystem_type = drmParseSubsystemType(maj, min); |
| 3797 | |
| 3798 | local_devices = calloc(max_count, sizeof(drmDevicePtr)); |
| 3799 | if (local_devices == NULL) |
| 3800 | return -ENOMEM; |
| 3801 | |
| 3802 | sysdir = opendir(DRM_DIR_NAME); |
| 3803 | if (!sysdir) { |
| 3804 | ret = -errno; |
Matt Roper | cf0f036 | 2015-10-16 15:11:23 -0700 | [diff] [blame] | 3805 | goto free_locals; |
Emil Velikov | ccedf66 | 2015-09-09 16:02:18 +0100 | [diff] [blame] | 3806 | } |
| 3807 | |
| 3808 | i = 0; |
| 3809 | while ((dent = readdir(sysdir))) { |
| 3810 | node_type = drmGetNodeType(dent->d_name); |
| 3811 | if (node_type < 0) |
| 3812 | continue; |
| 3813 | |
| 3814 | snprintf(node, PATH_MAX, "%s/%s", DRM_DIR_NAME, dent->d_name); |
| 3815 | if (stat(node, &sbuf)) |
| 3816 | continue; |
| 3817 | |
| 3818 | maj = major(sbuf.st_rdev); |
| 3819 | min = minor(sbuf.st_rdev); |
| 3820 | |
| 3821 | if (maj != DRM_MAJOR || !S_ISCHR(sbuf.st_mode)) |
| 3822 | continue; |
| 3823 | |
| 3824 | if (drmParseSubsystemType(maj, min) != subsystem_type) |
| 3825 | continue; |
| 3826 | |
| 3827 | switch (subsystem_type) { |
| 3828 | case DRM_BUS_PCI: |
Emil Velikov | 138d231 | 2016-11-30 17:13:51 +0000 | [diff] [blame] | 3829 | ret = drmProcessPciDevice(&d, node, node_type, maj, min, true, flags); |
Emil Velikov | ccedf66 | 2015-09-09 16:02:18 +0100 | [diff] [blame] | 3830 | if (ret) |
Jonathan Gray | eebefaf | 2016-12-17 16:09:53 +1100 | [diff] [blame] | 3831 | continue; |
Emil Velikov | ccedf66 | 2015-09-09 16:02:18 +0100 | [diff] [blame] | 3832 | |
| 3833 | break; |
Thierry Reding | f8484cc | 2016-12-22 00:39:36 +0100 | [diff] [blame] | 3834 | |
| 3835 | case DRM_BUS_USB: |
| 3836 | ret = drmProcessUsbDevice(&d, node, node_type, maj, min, true, flags); |
| 3837 | if (ret) |
| 3838 | continue; |
| 3839 | |
| 3840 | break; |
| 3841 | |
Thierry Reding | 7b1f37f | 2016-12-21 17:59:04 +0100 | [diff] [blame] | 3842 | case DRM_BUS_PLATFORM: |
| 3843 | ret = drmProcessPlatformDevice(&d, node, node_type, maj, min, true, flags); |
| 3844 | if (ret) |
| 3845 | continue; |
| 3846 | |
| 3847 | break; |
| 3848 | |
| 3849 | case DRM_BUS_HOST1X: |
| 3850 | ret = drmProcessHost1xDevice(&d, node, node_type, maj, min, true, flags); |
| 3851 | if (ret) |
| 3852 | continue; |
| 3853 | |
| 3854 | break; |
| 3855 | |
Emil Velikov | ccedf66 | 2015-09-09 16:02:18 +0100 | [diff] [blame] | 3856 | default: |
Matt Roper | ba5a6ec | 2015-10-16 15:11:24 -0700 | [diff] [blame] | 3857 | continue; |
Emil Velikov | ccedf66 | 2015-09-09 16:02:18 +0100 | [diff] [blame] | 3858 | } |
| 3859 | |
| 3860 | if (i >= max_count) { |
| 3861 | drmDevicePtr *temp; |
| 3862 | |
| 3863 | max_count += 16; |
| 3864 | temp = realloc(local_devices, max_count * sizeof(drmDevicePtr)); |
| 3865 | if (!temp) |
| 3866 | goto free_devices; |
| 3867 | local_devices = temp; |
| 3868 | } |
| 3869 | |
Qiang Yu | 3c20893 | 2016-07-14 17:10:55 +0800 | [diff] [blame] | 3870 | /* store target at local_devices[0] for ease to use below */ |
| 3871 | if (find_rdev == sbuf.st_rdev && i) { |
| 3872 | local_devices[i] = local_devices[0]; |
| 3873 | local_devices[0] = d; |
| 3874 | } |
| 3875 | else |
| 3876 | local_devices[i] = d; |
Emil Velikov | ccedf66 | 2015-09-09 16:02:18 +0100 | [diff] [blame] | 3877 | i++; |
| 3878 | } |
| 3879 | node_count = i; |
| 3880 | |
Emil Velikov | ccedf66 | 2015-09-09 16:02:18 +0100 | [diff] [blame] | 3881 | drmFoldDuplicatedDevices(local_devices, node_count); |
| 3882 | |
| 3883 | *device = local_devices[0]; |
Qiang Yu | 3c20893 | 2016-07-14 17:10:55 +0800 | [diff] [blame] | 3884 | drmFreeDevices(&local_devices[1], node_count - 1); |
Emil Velikov | ccedf66 | 2015-09-09 16:02:18 +0100 | [diff] [blame] | 3885 | |
Emil Velikov | ccedf66 | 2015-09-09 16:02:18 +0100 | [diff] [blame] | 3886 | closedir(sysdir); |
Matt Roper | cf0f036 | 2015-10-16 15:11:23 -0700 | [diff] [blame] | 3887 | free(local_devices); |
Rob Herring | 677cd97 | 2016-10-21 10:07:59 -0700 | [diff] [blame] | 3888 | if (*device == NULL) |
Thierry Reding | e17cad1 | 2016-12-21 18:00:52 +0100 | [diff] [blame] | 3889 | return -ENODEV; |
Emil Velikov | ccedf66 | 2015-09-09 16:02:18 +0100 | [diff] [blame] | 3890 | return 0; |
| 3891 | |
| 3892 | free_devices: |
| 3893 | drmFreeDevices(local_devices, i); |
Emil Velikov | ccedf66 | 2015-09-09 16:02:18 +0100 | [diff] [blame] | 3894 | closedir(sysdir); |
Matt Roper | cf0f036 | 2015-10-16 15:11:23 -0700 | [diff] [blame] | 3895 | |
| 3896 | free_locals: |
| 3897 | free(local_devices); |
Emil Velikov | ccedf66 | 2015-09-09 16:02:18 +0100 | [diff] [blame] | 3898 | return ret; |
Jonathan Gray | 0825792 | 2016-12-01 15:18:43 +1100 | [diff] [blame] | 3899 | #endif |
Emil Velikov | ccedf66 | 2015-09-09 16:02:18 +0100 | [diff] [blame] | 3900 | } |
| 3901 | |
| 3902 | /** |
Emil Velikov | 11687bf | 2016-11-30 17:24:21 +0000 | [diff] [blame] | 3903 | * Get information about the opened drm device |
| 3904 | * |
| 3905 | * \param fd file descriptor of the drm device |
| 3906 | * \param device the address of a drmDevicePtr where the information |
| 3907 | * will be allocated in stored |
| 3908 | * |
| 3909 | * \return zero on success, negative error code otherwise. |
| 3910 | */ |
| 3911 | int drmGetDevice(int fd, drmDevicePtr *device) |
| 3912 | { |
| 3913 | return drmGetDevice2(fd, DRM_DEVICE_GET_PCI_REVISION, device); |
| 3914 | } |
| 3915 | |
| 3916 | /** |
Emil Velikov | b556ea1 | 2015-08-17 11:09:06 +0800 | [diff] [blame] | 3917 | * Get drm devices on the system |
| 3918 | * |
Emil Velikov | 11687bf | 2016-11-30 17:24:21 +0000 | [diff] [blame] | 3919 | * \param flags feature/behaviour bitmask |
Emil Velikov | b556ea1 | 2015-08-17 11:09:06 +0800 | [diff] [blame] | 3920 | * \param devices the array of devices with drmDevicePtr elements |
| 3921 | * can be NULL to get the device number first |
| 3922 | * \param max_devices the maximum number of devices for the array |
| 3923 | * |
| 3924 | * \return on error - negative error code, |
| 3925 | * if devices is NULL - total number of devices available on the system, |
| 3926 | * alternatively the number of devices stored in devices[], which is |
| 3927 | * capped by the max_devices. |
Emil Velikov | 11687bf | 2016-11-30 17:24:21 +0000 | [diff] [blame] | 3928 | * |
| 3929 | * \note Unlike drmGetDevices it does not retrieve the pci device revision field |
| 3930 | * unless the DRM_DEVICE_GET_PCI_REVISION \p flag is set. |
Emil Velikov | b556ea1 | 2015-08-17 11:09:06 +0800 | [diff] [blame] | 3931 | */ |
Emil Velikov | 11687bf | 2016-11-30 17:24:21 +0000 | [diff] [blame] | 3932 | int drmGetDevices2(uint32_t flags, drmDevicePtr devices[], int max_devices) |
Emil Velikov | b556ea1 | 2015-08-17 11:09:06 +0800 | [diff] [blame] | 3933 | { |
Emil Velikov | 5f68d31 | 2015-09-07 13:54:32 +0100 | [diff] [blame] | 3934 | drmDevicePtr *local_devices; |
| 3935 | drmDevicePtr device; |
| 3936 | DIR *sysdir; |
| 3937 | struct dirent *dent; |
| 3938 | struct stat sbuf; |
| 3939 | char node[PATH_MAX + 1]; |
Emil Velikov | b556ea1 | 2015-08-17 11:09:06 +0800 | [diff] [blame] | 3940 | int node_type, subsystem_type; |
| 3941 | int maj, min; |
Emil Velikov | fae59d7 | 2015-09-09 17:54:34 +0100 | [diff] [blame] | 3942 | int ret, i, node_count, device_count; |
Emil Velikov | b556ea1 | 2015-08-17 11:09:06 +0800 | [diff] [blame] | 3943 | int max_count = 16; |
Emil Velikov | 11687bf | 2016-11-30 17:24:21 +0000 | [diff] [blame] | 3944 | |
| 3945 | if (drm_device_validate_flags(flags)) |
| 3946 | return -EINVAL; |
Emil Velikov | b556ea1 | 2015-08-17 11:09:06 +0800 | [diff] [blame] | 3947 | |
Emil Velikov | 5f68d31 | 2015-09-07 13:54:32 +0100 | [diff] [blame] | 3948 | local_devices = calloc(max_count, sizeof(drmDevicePtr)); |
| 3949 | if (local_devices == NULL) |
Emil Velikov | b556ea1 | 2015-08-17 11:09:06 +0800 | [diff] [blame] | 3950 | return -ENOMEM; |
| 3951 | |
| 3952 | sysdir = opendir(DRM_DIR_NAME); |
| 3953 | if (!sysdir) { |
| 3954 | ret = -errno; |
Matt Roper | 8c4a1cb | 2015-09-30 09:30:51 -0700 | [diff] [blame] | 3955 | goto free_locals; |
Emil Velikov | b556ea1 | 2015-08-17 11:09:06 +0800 | [diff] [blame] | 3956 | } |
| 3957 | |
Emil Velikov | 5f68d31 | 2015-09-07 13:54:32 +0100 | [diff] [blame] | 3958 | i = 0; |
Emil Velikov | b556ea1 | 2015-08-17 11:09:06 +0800 | [diff] [blame] | 3959 | while ((dent = readdir(sysdir))) { |
| 3960 | node_type = drmGetNodeType(dent->d_name); |
| 3961 | if (node_type < 0) |
| 3962 | continue; |
| 3963 | |
| 3964 | snprintf(node, PATH_MAX, "%s/%s", DRM_DIR_NAME, dent->d_name); |
| 3965 | if (stat(node, &sbuf)) |
| 3966 | continue; |
| 3967 | |
| 3968 | maj = major(sbuf.st_rdev); |
| 3969 | min = minor(sbuf.st_rdev); |
| 3970 | |
| 3971 | if (maj != DRM_MAJOR || !S_ISCHR(sbuf.st_mode)) |
| 3972 | continue; |
| 3973 | |
Emil Velikov | a250fce | 2015-09-07 12:54:27 +0100 | [diff] [blame] | 3974 | subsystem_type = drmParseSubsystemType(maj, min); |
Emil Velikov | b556ea1 | 2015-08-17 11:09:06 +0800 | [diff] [blame] | 3975 | |
| 3976 | if (subsystem_type < 0) |
| 3977 | continue; |
| 3978 | |
| 3979 | switch (subsystem_type) { |
| 3980 | case DRM_BUS_PCI: |
Emil Velikov | b40a65d | 2016-11-30 16:41:27 +0000 | [diff] [blame] | 3981 | ret = drmProcessPciDevice(&device, node, node_type, |
Emil Velikov | 138d231 | 2016-11-30 17:13:51 +0000 | [diff] [blame] | 3982 | maj, min, devices != NULL, flags); |
Emil Velikov | b556ea1 | 2015-08-17 11:09:06 +0800 | [diff] [blame] | 3983 | if (ret) |
Jonathan Gray | eebefaf | 2016-12-17 16:09:53 +1100 | [diff] [blame] | 3984 | continue; |
Emil Velikov | b556ea1 | 2015-08-17 11:09:06 +0800 | [diff] [blame] | 3985 | |
Emil Velikov | b556ea1 | 2015-08-17 11:09:06 +0800 | [diff] [blame] | 3986 | break; |
Thierry Reding | f8484cc | 2016-12-22 00:39:36 +0100 | [diff] [blame] | 3987 | |
| 3988 | case DRM_BUS_USB: |
| 3989 | ret = drmProcessUsbDevice(&device, node, node_type, maj, min, |
| 3990 | devices != NULL, flags); |
| 3991 | if (ret) |
Emil Velikov | 3876bc2 | 2017-07-20 12:25:27 +0100 | [diff] [blame^] | 3992 | continue; |
Thierry Reding | f8484cc | 2016-12-22 00:39:36 +0100 | [diff] [blame] | 3993 | |
| 3994 | break; |
| 3995 | |
Thierry Reding | 7b1f37f | 2016-12-21 17:59:04 +0100 | [diff] [blame] | 3996 | case DRM_BUS_PLATFORM: |
| 3997 | ret = drmProcessPlatformDevice(&device, node, node_type, maj, min, |
| 3998 | devices != NULL, flags); |
| 3999 | if (ret) |
Gurchetan Singh | 5226b52 | 2017-07-19 08:37:06 -0700 | [diff] [blame] | 4000 | continue; |
Thierry Reding | 7b1f37f | 2016-12-21 17:59:04 +0100 | [diff] [blame] | 4001 | |
| 4002 | break; |
| 4003 | |
| 4004 | case DRM_BUS_HOST1X: |
| 4005 | ret = drmProcessHost1xDevice(&device, node, node_type, maj, min, |
| 4006 | devices != NULL, flags); |
| 4007 | if (ret) |
Gurchetan Singh | 5226b52 | 2017-07-19 08:37:06 -0700 | [diff] [blame] | 4008 | continue; |
Thierry Reding | 7b1f37f | 2016-12-21 17:59:04 +0100 | [diff] [blame] | 4009 | |
| 4010 | break; |
| 4011 | |
Emil Velikov | b556ea1 | 2015-08-17 11:09:06 +0800 | [diff] [blame] | 4012 | default: |
Matt Roper | ba5a6ec | 2015-10-16 15:11:24 -0700 | [diff] [blame] | 4013 | continue; |
Emil Velikov | b556ea1 | 2015-08-17 11:09:06 +0800 | [diff] [blame] | 4014 | } |
Emil Velikov | 5f68d31 | 2015-09-07 13:54:32 +0100 | [diff] [blame] | 4015 | |
| 4016 | if (i >= max_count) { |
| 4017 | drmDevicePtr *temp; |
| 4018 | |
| 4019 | max_count += 16; |
| 4020 | temp = realloc(local_devices, max_count * sizeof(drmDevicePtr)); |
| 4021 | if (!temp) |
| 4022 | goto free_devices; |
| 4023 | local_devices = temp; |
| 4024 | } |
| 4025 | |
| 4026 | local_devices[i] = device; |
Emil Velikov | b556ea1 | 2015-08-17 11:09:06 +0800 | [diff] [blame] | 4027 | i++; |
| 4028 | } |
Emil Velikov | b556ea1 | 2015-08-17 11:09:06 +0800 | [diff] [blame] | 4029 | node_count = i; |
| 4030 | |
Emil Velikov | fae59d7 | 2015-09-09 17:54:34 +0100 | [diff] [blame] | 4031 | drmFoldDuplicatedDevices(local_devices, node_count); |
Emil Velikov | b556ea1 | 2015-08-17 11:09:06 +0800 | [diff] [blame] | 4032 | |
Emil Velikov | 5f68d31 | 2015-09-07 13:54:32 +0100 | [diff] [blame] | 4033 | device_count = 0; |
Qiang Yu | 70b6407 | 2016-06-06 12:29:16 -0400 | [diff] [blame] | 4034 | for (i = 0; i < node_count; i++) { |
Jan Vesely | 50d3c85 | 2016-06-30 14:22:52 -0400 | [diff] [blame] | 4035 | if (!local_devices[i]) |
| 4036 | continue; |
Qiang Yu | 70b6407 | 2016-06-06 12:29:16 -0400 | [diff] [blame] | 4037 | |
Emil Velikov | 5f68d31 | 2015-09-07 13:54:32 +0100 | [diff] [blame] | 4038 | if ((devices != NULL) && (device_count < max_devices)) |
| 4039 | devices[device_count] = local_devices[i]; |
| 4040 | else |
| 4041 | drmFreeDevice(&local_devices[i]); |
| 4042 | |
| 4043 | device_count++; |
Emil Velikov | b556ea1 | 2015-08-17 11:09:06 +0800 | [diff] [blame] | 4044 | } |
| 4045 | |
Emil Velikov | b556ea1 | 2015-08-17 11:09:06 +0800 | [diff] [blame] | 4046 | closedir(sysdir); |
Matt Roper | 8c4a1cb | 2015-09-30 09:30:51 -0700 | [diff] [blame] | 4047 | free(local_devices); |
Emil Velikov | 5f68d31 | 2015-09-07 13:54:32 +0100 | [diff] [blame] | 4048 | return device_count; |
Emil Velikov | b556ea1 | 2015-08-17 11:09:06 +0800 | [diff] [blame] | 4049 | |
Emil Velikov | 5f68d31 | 2015-09-07 13:54:32 +0100 | [diff] [blame] | 4050 | free_devices: |
| 4051 | drmFreeDevices(local_devices, i); |
Emil Velikov | b556ea1 | 2015-08-17 11:09:06 +0800 | [diff] [blame] | 4052 | closedir(sysdir); |
Matt Roper | 8c4a1cb | 2015-09-30 09:30:51 -0700 | [diff] [blame] | 4053 | |
| 4054 | free_locals: |
| 4055 | free(local_devices); |
Emil Velikov | b556ea1 | 2015-08-17 11:09:06 +0800 | [diff] [blame] | 4056 | return ret; |
| 4057 | } |
Emil Velikov | 37d790f | 2016-11-10 17:26:50 +0000 | [diff] [blame] | 4058 | |
Emil Velikov | 11687bf | 2016-11-30 17:24:21 +0000 | [diff] [blame] | 4059 | /** |
| 4060 | * Get drm devices on the system |
| 4061 | * |
| 4062 | * \param devices the array of devices with drmDevicePtr elements |
| 4063 | * can be NULL to get the device number first |
| 4064 | * \param max_devices the maximum number of devices for the array |
| 4065 | * |
| 4066 | * \return on error - negative error code, |
| 4067 | * if devices is NULL - total number of devices available on the system, |
| 4068 | * alternatively the number of devices stored in devices[], which is |
| 4069 | * capped by the max_devices. |
| 4070 | */ |
| 4071 | int drmGetDevices(drmDevicePtr devices[], int max_devices) |
| 4072 | { |
| 4073 | return drmGetDevices2(DRM_DEVICE_GET_PCI_REVISION, devices, max_devices); |
| 4074 | } |
| 4075 | |
Emil Velikov | 37d790f | 2016-11-10 17:26:50 +0000 | [diff] [blame] | 4076 | char *drmGetDeviceNameFromFd2(int fd) |
| 4077 | { |
| 4078 | #ifdef __linux__ |
| 4079 | struct stat sbuf; |
Thierry Reding | 5403cb3 | 2017-01-18 08:29:23 +0100 | [diff] [blame] | 4080 | char path[PATH_MAX + 1], *value; |
Emil Velikov | 37d790f | 2016-11-10 17:26:50 +0000 | [diff] [blame] | 4081 | unsigned int maj, min; |
Emil Velikov | 37d790f | 2016-11-10 17:26:50 +0000 | [diff] [blame] | 4082 | |
| 4083 | if (fstat(fd, &sbuf)) |
| 4084 | return NULL; |
| 4085 | |
| 4086 | maj = major(sbuf.st_rdev); |
| 4087 | min = minor(sbuf.st_rdev); |
| 4088 | |
| 4089 | if (maj != DRM_MAJOR || !S_ISCHR(sbuf.st_mode)) |
| 4090 | return NULL; |
| 4091 | |
Thierry Reding | 5403cb3 | 2017-01-18 08:29:23 +0100 | [diff] [blame] | 4092 | snprintf(path, sizeof(path), "/sys/dev/char/%d:%d", maj, min); |
| 4093 | |
| 4094 | value = sysfs_uevent_get(path, "DEVNAME"); |
| 4095 | if (!value) |
Emil Velikov | 37d790f | 2016-11-10 17:26:50 +0000 | [diff] [blame] | 4096 | return NULL; |
| 4097 | |
Thierry Reding | 5403cb3 | 2017-01-18 08:29:23 +0100 | [diff] [blame] | 4098 | snprintf(path, sizeof(path), "/dev/%s", value); |
| 4099 | free(value); |
Emil Velikov | 37d790f | 2016-11-10 17:26:50 +0000 | [diff] [blame] | 4100 | |
Thierry Reding | 5403cb3 | 2017-01-18 08:29:23 +0100 | [diff] [blame] | 4101 | return strdup(path); |
Emil Velikov | 37d790f | 2016-11-10 17:26:50 +0000 | [diff] [blame] | 4102 | #else |
Jonathan Gray | e2e766d | 2016-12-17 16:09:52 +1100 | [diff] [blame] | 4103 | struct stat sbuf; |
| 4104 | char node[PATH_MAX + 1]; |
| 4105 | const char *dev_name; |
| 4106 | int node_type; |
| 4107 | int maj, min, n, base; |
| 4108 | |
| 4109 | if (fstat(fd, &sbuf)) |
| 4110 | return NULL; |
| 4111 | |
| 4112 | maj = major(sbuf.st_rdev); |
| 4113 | min = minor(sbuf.st_rdev); |
| 4114 | |
| 4115 | if (maj != DRM_MAJOR || !S_ISCHR(sbuf.st_mode)) |
| 4116 | return NULL; |
| 4117 | |
| 4118 | node_type = drmGetMinorType(min); |
| 4119 | if (node_type == -1) |
| 4120 | return NULL; |
| 4121 | |
| 4122 | switch (node_type) { |
| 4123 | case DRM_NODE_PRIMARY: |
| 4124 | dev_name = DRM_DEV_NAME; |
| 4125 | break; |
| 4126 | case DRM_NODE_CONTROL: |
| 4127 | dev_name = DRM_CONTROL_DEV_NAME; |
| 4128 | break; |
| 4129 | case DRM_NODE_RENDER: |
| 4130 | dev_name = DRM_RENDER_DEV_NAME; |
| 4131 | break; |
| 4132 | default: |
| 4133 | return NULL; |
| 4134 | }; |
| 4135 | |
| 4136 | base = drmGetMinorBase(node_type); |
| 4137 | if (base < 0) |
| 4138 | return NULL; |
| 4139 | |
| 4140 | n = snprintf(node, PATH_MAX, dev_name, DRM_DIR_NAME, min - base); |
| 4141 | if (n == -1 || n >= PATH_MAX) |
| 4142 | return NULL; |
| 4143 | |
| 4144 | return strdup(node); |
Emil Velikov | 37d790f | 2016-11-10 17:26:50 +0000 | [diff] [blame] | 4145 | #endif |
| 4146 | } |
Dave Airlie | fc49227 | 2017-06-17 11:01:01 +1000 | [diff] [blame] | 4147 | |
| 4148 | int drmSyncobjCreate(int fd, uint32_t flags, uint32_t *handle) |
| 4149 | { |
| 4150 | struct drm_syncobj_create args; |
| 4151 | int ret; |
| 4152 | |
| 4153 | memclear(args); |
| 4154 | args.flags = flags; |
| 4155 | args.handle = 0; |
| 4156 | ret = drmIoctl(fd, DRM_IOCTL_SYNCOBJ_CREATE, &args); |
| 4157 | if (ret) |
| 4158 | return ret; |
| 4159 | *handle = args.handle; |
| 4160 | return 0; |
| 4161 | } |
| 4162 | |
| 4163 | int drmSyncobjDestroy(int fd, uint32_t handle) |
| 4164 | { |
| 4165 | struct drm_syncobj_destroy args; |
| 4166 | |
| 4167 | memclear(args); |
| 4168 | args.handle = handle; |
| 4169 | return drmIoctl(fd, DRM_IOCTL_SYNCOBJ_DESTROY, &args); |
| 4170 | } |
| 4171 | |
| 4172 | int drmSyncobjHandleToFD(int fd, uint32_t handle, int *obj_fd) |
| 4173 | { |
| 4174 | struct drm_syncobj_handle args; |
| 4175 | int ret; |
| 4176 | |
| 4177 | memclear(args); |
| 4178 | args.fd = -1; |
| 4179 | args.handle = handle; |
| 4180 | ret = drmIoctl(fd, DRM_IOCTL_SYNCOBJ_HANDLE_TO_FD, &args); |
| 4181 | if (ret) |
| 4182 | return ret; |
| 4183 | *obj_fd = args.fd; |
| 4184 | return 0; |
| 4185 | } |
| 4186 | |
| 4187 | int drmSyncobjFDToHandle(int fd, int obj_fd, uint32_t *handle) |
| 4188 | { |
| 4189 | struct drm_syncobj_handle args; |
| 4190 | int ret; |
| 4191 | |
| 4192 | memclear(args); |
| 4193 | args.fd = obj_fd; |
| 4194 | args.handle = 0; |
| 4195 | ret = drmIoctl(fd, DRM_IOCTL_SYNCOBJ_FD_TO_HANDLE, &args); |
| 4196 | if (ret) |
| 4197 | return ret; |
| 4198 | *handle = args.handle; |
| 4199 | return 0; |
| 4200 | } |
| 4201 | |
| 4202 | int drmSyncobjImportSyncFile(int fd, uint32_t handle, int sync_file_fd) |
| 4203 | { |
| 4204 | struct drm_syncobj_handle args; |
| 4205 | |
| 4206 | memclear(args); |
| 4207 | args.fd = sync_file_fd; |
| 4208 | args.handle = handle; |
| 4209 | args.flags = DRM_SYNCOBJ_FD_TO_HANDLE_FLAGS_IMPORT_SYNC_FILE; |
| 4210 | return drmIoctl(fd, DRM_IOCTL_SYNCOBJ_FD_TO_HANDLE, &args); |
| 4211 | } |
| 4212 | |
| 4213 | int drmSyncobjExportSyncFile(int fd, uint32_t handle, int *sync_file_fd) |
| 4214 | { |
| 4215 | struct drm_syncobj_handle args; |
| 4216 | int ret; |
| 4217 | |
| 4218 | memclear(args); |
| 4219 | args.fd = -1; |
| 4220 | args.handle = handle; |
| 4221 | args.flags = DRM_SYNCOBJ_HANDLE_TO_FD_FLAGS_EXPORT_SYNC_FILE; |
| 4222 | ret = drmIoctl(fd, DRM_IOCTL_SYNCOBJ_HANDLE_TO_FD, &args); |
| 4223 | if (ret) |
| 4224 | return ret; |
| 4225 | *sync_file_fd = args.fd; |
| 4226 | return 0; |
| 4227 | } |