xf86drm.c revision b04515c5d6c95f573457a94267b855cceb639105
1d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca/** 2d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \file xf86drm.c 3d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * User-level interface to DRM device 4b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss * 5d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \author Rickard E. (Rik) Faith <faith@valinux.com> 6d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \author Kevin E. Martin <martin@valinux.com> 7d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca */ 8d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca 9d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca/* 10569da5a42ebf10c86d6c6ba81866a888e1c708dcBrian Paul * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. 11569da5a42ebf10c86d6c6ba81866a888e1c708dcBrian Paul * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. 12b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss * All Rights Reserved. 13b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss * 14b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss * Permission is hereby granted, free of charge, to any person obtaining a 15b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss * copy of this software and associated documentation files (the "Software"), 16b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss * to deal in the Software without restriction, including without limitation 17b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss * the rights to use, copy, modify, merge, publish, distribute, sublicense, 18b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss * and/or sell copies of the Software, and to permit persons to whom the 19b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss * Software is furnished to do so, subject to the following conditions: 20360475376c5a597caf4a981c934a6b0d783fa94dGareth Hughes * 21b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss * The above copyright notice and this permission notice (including the next 22b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss * paragraph) shall be included in all copies or substantial portions of the 23b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss * Software. 24360475376c5a597caf4a981c934a6b0d783fa94dGareth Hughes * 25b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 26b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 27b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 28b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR 29b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 30b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 31b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss * DEALINGS IN THE SOFTWARE. 32b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss */ 33b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 3479038751ffe47ed1ce82766e027d98fd2f0e2c6aDave Airlie#ifdef HAVE_CONFIG_H 3579038751ffe47ed1ce82766e027d98fd2f0e2c6aDave Airlie# include <config.h> 36b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss#endif 3779038751ffe47ed1ce82766e027d98fd2f0e2c6aDave Airlie#include <stdio.h> 3879038751ffe47ed1ce82766e027d98fd2f0e2c6aDave Airlie#include <stdlib.h> 3979038751ffe47ed1ce82766e027d98fd2f0e2c6aDave Airlie#include <unistd.h> 4079038751ffe47ed1ce82766e027d98fd2f0e2c6aDave Airlie#include <string.h> 41015efd1bfa72ab8b80cc45f11eb22d7f1a1085f7Ian Romanick#include <strings.h> 4279038751ffe47ed1ce82766e027d98fd2f0e2c6aDave Airlie#include <ctype.h> 4379038751ffe47ed1ce82766e027d98fd2f0e2c6aDave Airlie#include <fcntl.h> 4479038751ffe47ed1ce82766e027d98fd2f0e2c6aDave Airlie#include <errno.h> 4579038751ffe47ed1ce82766e027d98fd2f0e2c6aDave Airlie#include <signal.h> 46f4f76a6894b40abd77f0ffbf52972127608b9bcaJesse Barnes#include <time.h> 4779038751ffe47ed1ce82766e027d98fd2f0e2c6aDave Airlie#include <sys/types.h> 4879038751ffe47ed1ce82766e027d98fd2f0e2c6aDave Airlie#include <sys/stat.h> 4979038751ffe47ed1ce82766e027d98fd2f0e2c6aDave Airlie#define stat_t struct stat 5079038751ffe47ed1ce82766e027d98fd2f0e2c6aDave Airlie#include <sys/ioctl.h> 5179038751ffe47ed1ce82766e027d98fd2f0e2c6aDave Airlie#include <sys/mman.h> 5279038751ffe47ed1ce82766e027d98fd2f0e2c6aDave Airlie#include <sys/time.h> 5379038751ffe47ed1ce82766e027d98fd2f0e2c6aDave Airlie#include <stdarg.h> 54b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 55b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss/* Not all systems have MAP_FAILED defined */ 56b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss#ifndef MAP_FAILED 57b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss#define MAP_FAILED ((void *)-1) 58b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss#endif 59b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 60b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss#include "xf86drm.h" 61b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 6227c3785d3f12743a9e160238a4d00353060ec2f2Hasso Tepper#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__) 63cfa778af9c70faea8c13e5cb7f80029eee0d074eEric Anholt#define DRM_MAJOR 145 64cfa778af9c70faea8c13e5cb7f80029eee0d074eEric Anholt#endif 65cfa778af9c70faea8c13e5cb7f80029eee0d074eEric Anholt 66cfa778af9c70faea8c13e5cb7f80029eee0d074eEric Anholt#ifdef __NetBSD__ 67cfa778af9c70faea8c13e5cb7f80029eee0d074eEric Anholt#define DRM_MAJOR 34 6888dbee54ed400a3fd5594fab506518c171167805Rik Faith#endif 6988dbee54ed400a3fd5594fab506518c171167805Rik Faith 70b0a928557c91fec527f41ae8b2441174889bf32cAlan Hourihane# ifdef __OpenBSD__ 71b0a928557c91fec527f41ae8b2441174889bf32cAlan Hourihane# define DRM_MAJOR 81 72b0a928557c91fec527f41ae8b2441174889bf32cAlan Hourihane# endif 73b0a928557c91fec527f41ae8b2441174889bf32cAlan Hourihane 74cfa778af9c70faea8c13e5cb7f80029eee0d074eEric Anholt#ifndef DRM_MAJOR 75cfa778af9c70faea8c13e5cb7f80029eee0d074eEric Anholt#define DRM_MAJOR 226 /* Linux */ 7688dbee54ed400a3fd5594fab506518c171167805Rik Faith#endif 7788dbee54ed400a3fd5594fab506518c171167805Rik Faith 7822e41ef08338ae6dd59acbe6d4d8e50d83672816Adam Jackson/* 7922e41ef08338ae6dd59acbe6d4d8e50d83672816Adam Jackson * This definition needs to be changed on some systems if dev_t is a structure. 8022e41ef08338ae6dd59acbe6d4d8e50d83672816Adam Jackson * If there is a header file we can get it from, there would be best. 8122e41ef08338ae6dd59acbe6d4d8e50d83672816Adam Jackson */ 82569da5a42ebf10c86d6c6ba81866a888e1c708dcBrian Paul#ifndef makedev 83569da5a42ebf10c86d6c6ba81866a888e1c708dcBrian Paul#define makedev(x,y) ((dev_t)(((x) << 8) | (y))) 84569da5a42ebf10c86d6c6ba81866a888e1c708dcBrian Paul#endif 85569da5a42ebf10c86d6c6ba81866a888e1c708dcBrian Paul 8656bd9c207770d41a497f3e8237a1099dd9d4cd91David Dawes#define DRM_MSG_VERBOSITY 3 8756bd9c207770d41a497f3e8237a1099dd9d4cd91David Dawes 88731cd5526e5c732d51307b26e784f454a724a699Jesse Barnes#define DRM_NODE_CONTROL 0 89731cd5526e5c732d51307b26e784f454a724a699Jesse Barnes#define DRM_NODE_RENDER 1 90731cd5526e5c732d51307b26e784f454a724a699Jesse Barnes 9179038751ffe47ed1ce82766e027d98fd2f0e2c6aDave Airliestatic drmServerInfoPtr drm_server_info; 9279038751ffe47ed1ce82766e027d98fd2f0e2c6aDave Airlie 9379038751ffe47ed1ce82766e027d98fd2f0e2c6aDave Airlievoid drmSetServerInfo(drmServerInfoPtr info) 9479038751ffe47ed1ce82766e027d98fd2f0e2c6aDave Airlie{ 95ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian drm_server_info = info; 9679038751ffe47ed1ce82766e027d98fd2f0e2c6aDave Airlie} 9779038751ffe47ed1ce82766e027d98fd2f0e2c6aDave Airlie 98d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca/** 99d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * Output a message to stderr. 100d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 101d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param format printf() like format string. 102d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 103d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \internal 104d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * This function is a wrapper around vfprintf(). 105d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca */ 10679038751ffe47ed1ce82766e027d98fd2f0e2c6aDave Airlie 10779038751ffe47ed1ce82766e027d98fd2f0e2c6aDave Airliestatic int drmDebugPrint(const char *format, va_list ap) 10879038751ffe47ed1ce82766e027d98fd2f0e2c6aDave Airlie{ 109ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian return vfprintf(stderr, format, ap); 11079038751ffe47ed1ce82766e027d98fd2f0e2c6aDave Airlie} 11179038751ffe47ed1ce82766e027d98fd2f0e2c6aDave Airlie 11279038751ffe47ed1ce82766e027d98fd2f0e2c6aDave Airliestatic int (*drm_debug_print)(const char *format, va_list ap) = drmDebugPrint; 11379038751ffe47ed1ce82766e027d98fd2f0e2c6aDave Airlie 114c4857429c716f35e1fa054d1990cae28055d96d7Eric Anholtvoid 11556bd9c207770d41a497f3e8237a1099dd9d4cd91David DawesdrmMsg(const char *format, ...) 11656bd9c207770d41a497f3e8237a1099dd9d4cd91David Dawes{ 11756bd9c207770d41a497f3e8237a1099dd9d4cd91David Dawes va_list ap; 11856bd9c207770d41a497f3e8237a1099dd9d4cd91David Dawes const char *env; 11979038751ffe47ed1ce82766e027d98fd2f0e2c6aDave Airlie if (((env = getenv("LIBGL_DEBUG")) && strstr(env, "verbose")) || drm_server_info) 12056bd9c207770d41a497f3e8237a1099dd9d4cd91David Dawes { 12156bd9c207770d41a497f3e8237a1099dd9d4cd91David Dawes va_start(ap, format); 12279038751ffe47ed1ce82766e027d98fd2f0e2c6aDave Airlie if (drm_server_info) { 12379038751ffe47ed1ce82766e027d98fd2f0e2c6aDave Airlie drm_server_info->debug_print(format,ap); 12479038751ffe47ed1ce82766e027d98fd2f0e2c6aDave Airlie } else { 12579038751ffe47ed1ce82766e027d98fd2f0e2c6aDave Airlie drm_debug_print(format, ap); 12679038751ffe47ed1ce82766e027d98fd2f0e2c6aDave Airlie } 12756bd9c207770d41a497f3e8237a1099dd9d4cd91David Dawes va_end(ap); 12856bd9c207770d41a497f3e8237a1099dd9d4cd91David Dawes } 12956bd9c207770d41a497f3e8237a1099dd9d4cd91David Dawes} 13056bd9c207770d41a497f3e8237a1099dd9d4cd91David Dawes 13179038751ffe47ed1ce82766e027d98fd2f0e2c6aDave Airlievoid 13279038751ffe47ed1ce82766e027d98fd2f0e2c6aDave AirliedrmSetDebugMsgFunction(int (*debug_msg_ptr)(const char *format, va_list ap)) 13379038751ffe47ed1ce82766e027d98fd2f0e2c6aDave Airlie{ 134ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian drm_debug_print = debug_msg_ptr; 13579038751ffe47ed1ce82766e027d98fd2f0e2c6aDave Airlie} 13679038751ffe47ed1ce82766e027d98fd2f0e2c6aDave Airlie 137b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Straussstatic void *drmHashTable = NULL; /* Context switch callbacks */ 138b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 13979038751ffe47ed1ce82766e027d98fd2f0e2c6aDave Airlievoid *drmGetHashTable(void) 14079038751ffe47ed1ce82766e027d98fd2f0e2c6aDave Airlie{ 141ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian return drmHashTable; 14279038751ffe47ed1ce82766e027d98fd2f0e2c6aDave Airlie} 143b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 144b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Straussvoid *drmMalloc(int size) 145b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss{ 146b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss void *pt; 147ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian if ((pt = malloc(size))) 148ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian memset(pt, 0, size); 149b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss return pt; 150b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss} 151b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 152b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Straussvoid drmFree(void *pt) 153b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss{ 154ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian if (pt) 155ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian free(pt); 156b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss} 157b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 158569da5a42ebf10c86d6c6ba81866a888e1c708dcBrian Paul/* drmStrdup can't use strdup(3), since it doesn't call _DRM_MALLOC... */ 159b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Straussstatic char *drmStrdup(const char *s) 160b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss{ 16148198970ce449165fe1c7294108ca3afc775563dAdam Jackson char *retval; 16248198970ce449165fe1c7294108ca3afc775563dAdam Jackson 16348198970ce449165fe1c7294108ca3afc775563dAdam Jackson if (!s) 16448198970ce449165fe1c7294108ca3afc775563dAdam Jackson return NULL; 16548198970ce449165fe1c7294108ca3afc775563dAdam Jackson 16679038751ffe47ed1ce82766e027d98fd2f0e2c6aDave Airlie retval = malloc(strlen(s)+1); 16748198970ce449165fe1c7294108ca3afc775563dAdam Jackson if (!retval) 16848198970ce449165fe1c7294108ca3afc775563dAdam Jackson return NULL; 16948198970ce449165fe1c7294108ca3afc775563dAdam Jackson 17048198970ce449165fe1c7294108ca3afc775563dAdam Jackson strcpy(retval, s); 171360475376c5a597caf4a981c934a6b0d783fa94dGareth Hughes 172569da5a42ebf10c86d6c6ba81866a888e1c708dcBrian Paul return retval; 173b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss} 174b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 1758b9ab108ec1f2ba2b503f713769c4946849b3cb2Keith Packard/** 1768b9ab108ec1f2ba2b503f713769c4946849b3cb2Keith Packard * Call ioctl, restarting if it is interupted 1778b9ab108ec1f2ba2b503f713769c4946849b3cb2Keith Packard */ 178731cd5526e5c732d51307b26e784f454a724a699Jesse Barnesint 17941b83a99583486ad4f8760a6537d34783769bfc3Coleman KanedrmIoctl(int fd, unsigned long request, void *arg) 1808b9ab108ec1f2ba2b503f713769c4946849b3cb2Keith Packard{ 1818b9ab108ec1f2ba2b503f713769c4946849b3cb2Keith Packard int ret; 1828b9ab108ec1f2ba2b503f713769c4946849b3cb2Keith Packard 1838b9ab108ec1f2ba2b503f713769c4946849b3cb2Keith Packard do { 1848b9ab108ec1f2ba2b503f713769c4946849b3cb2Keith Packard ret = ioctl(fd, request, arg); 1858b9ab108ec1f2ba2b503f713769c4946849b3cb2Keith Packard } while (ret == -1 && (errno == EINTR || errno == EAGAIN)); 1868b9ab108ec1f2ba2b503f713769c4946849b3cb2Keith Packard return ret; 1878b9ab108ec1f2ba2b503f713769c4946849b3cb2Keith Packard} 188b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 189b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Straussstatic unsigned long drmGetKeyFromFd(int fd) 190b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss{ 191fcc21069b7019a4a93e1ceacc175ccd682353861David Dawes stat_t st; 192b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 193b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss st.st_rdev = 0; 194b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss fstat(fd, &st); 195b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss return st.st_rdev; 196b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss} 197b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 19879038751ffe47ed1ce82766e027d98fd2f0e2c6aDave AirliedrmHashEntry *drmGetEntry(int fd) 199b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss{ 200b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss unsigned long key = drmGetKeyFromFd(fd); 201b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss void *value; 202b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss drmHashEntry *entry; 203b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 204ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian if (!drmHashTable) 205ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian drmHashTable = drmHashCreate(); 206b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 207b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss if (drmHashLookup(drmHashTable, key, &value)) { 208b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss entry = drmMalloc(sizeof(*entry)); 209b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss entry->fd = fd; 210b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss entry->f = NULL; 211b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss entry->tagTable = drmHashCreate(); 212b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss drmHashInsert(drmHashTable, key, entry); 213b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss } else { 214b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss entry = value; 215b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss } 216b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss return entry; 217b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss} 218b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 219d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca/** 22006cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt * Compare two busid strings 22106cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt * 22206cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt * \param first 22306cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt * \param second 22406cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt * 22506cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt * \return 1 if matched. 22606cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt * 22706cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt * \internal 22806cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt * This function compares two bus ID strings. It understands the older 22906cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt * PCI:b:d:f format and the newer pci:oooo:bb:dd.f format. In the format, o is 23006cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt * domain, b is bus, d is device, f is function. 23106cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt */ 232b04515c5d6c95f573457a94267b855cceb639105Benjamin Herrenschmidtstatic int drmMatchBusID(const char *id1, const char *id2, int pci_domain_ok) 23306cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt{ 23406cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt /* First, check if the IDs are exactly the same */ 23506cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt if (strcasecmp(id1, id2) == 0) 23606cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt return 1; 23706cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt 23806cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt /* Try to match old/new-style PCI bus IDs. */ 23906cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt if (strncasecmp(id1, "pci", 3) == 0) { 24090ae0f2bb8d53500f5c9d06e2dc1a18d5a5d0cf5Pauli Nieminen unsigned int o1, b1, d1, f1; 24190ae0f2bb8d53500f5c9d06e2dc1a18d5a5d0cf5Pauli Nieminen unsigned int o2, b2, d2, f2; 24206cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt int ret; 24306cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt 24490ae0f2bb8d53500f5c9d06e2dc1a18d5a5d0cf5Pauli Nieminen ret = sscanf(id1, "pci:%04x:%02x:%02x.%u", &o1, &b1, &d1, &f1); 24506cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt if (ret != 4) { 24606cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt o1 = 0; 24790ae0f2bb8d53500f5c9d06e2dc1a18d5a5d0cf5Pauli Nieminen ret = sscanf(id1, "PCI:%u:%u:%u", &b1, &d1, &f1); 24806cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt if (ret != 3) 24906cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt return 0; 25006cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt } 25106cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt 25290ae0f2bb8d53500f5c9d06e2dc1a18d5a5d0cf5Pauli Nieminen ret = sscanf(id2, "pci:%04x:%02x:%02x.%u", &o2, &b2, &d2, &f2); 25306cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt if (ret != 4) { 25406cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt o2 = 0; 25590ae0f2bb8d53500f5c9d06e2dc1a18d5a5d0cf5Pauli Nieminen ret = sscanf(id2, "PCI:%u:%u:%u", &b2, &d2, &f2); 25606cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt if (ret != 3) 25706cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt return 0; 25806cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt } 25906cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt 260b04515c5d6c95f573457a94267b855cceb639105Benjamin Herrenschmidt /* If domains aren't properly supported by the kernel interface, 261b04515c5d6c95f573457a94267b855cceb639105Benjamin Herrenschmidt * just ignore them, which sucks less than picking a totally random 262b04515c5d6c95f573457a94267b855cceb639105Benjamin Herrenschmidt * card with "open by name" 263b04515c5d6c95f573457a94267b855cceb639105Benjamin Herrenschmidt */ 264b04515c5d6c95f573457a94267b855cceb639105Benjamin Herrenschmidt if (!pci_domain_ok) 265b04515c5d6c95f573457a94267b855cceb639105Benjamin Herrenschmidt o1 = o2 = 0; 266b04515c5d6c95f573457a94267b855cceb639105Benjamin Herrenschmidt 26706cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt if ((o1 != o2) || (b1 != b2) || (d1 != d2) || (f1 != f2)) 26806cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt return 0; 26906cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt else 27006cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt return 1; 27106cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt } 27206cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt return 0; 27306cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt} 27406cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt 27506cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt/** 276c5a5bbbe899400642795c1d95aef78deade9241fPauli Nieminen * Handles error checking for chown call. 277c5a5bbbe899400642795c1d95aef78deade9241fPauli Nieminen * 278c5a5bbbe899400642795c1d95aef78deade9241fPauli Nieminen * \param path to file. 279c5a5bbbe899400642795c1d95aef78deade9241fPauli Nieminen * \param id of the new owner. 280c5a5bbbe899400642795c1d95aef78deade9241fPauli Nieminen * \param id of the new group. 281c5a5bbbe899400642795c1d95aef78deade9241fPauli Nieminen * 282c5a5bbbe899400642795c1d95aef78deade9241fPauli Nieminen * \return zero if success or -1 if failure. 283c5a5bbbe899400642795c1d95aef78deade9241fPauli Nieminen * 284c5a5bbbe899400642795c1d95aef78deade9241fPauli Nieminen * \internal 285c5a5bbbe899400642795c1d95aef78deade9241fPauli Nieminen * Checks for failure. If failure was caused by signal call chown again. 286c5a5bbbe899400642795c1d95aef78deade9241fPauli Nieminen * If any other failure happened then it will output error mesage using 287c5a5bbbe899400642795c1d95aef78deade9241fPauli Nieminen * drmMsg() call. 288c5a5bbbe899400642795c1d95aef78deade9241fPauli Nieminen */ 289c5a5bbbe899400642795c1d95aef78deade9241fPauli Nieminenstatic int chown_check_return(const char *path, uid_t owner, gid_t group) 290c5a5bbbe899400642795c1d95aef78deade9241fPauli Nieminen{ 291c5a5bbbe899400642795c1d95aef78deade9241fPauli Nieminen int rv; 292c5a5bbbe899400642795c1d95aef78deade9241fPauli Nieminen 293c5a5bbbe899400642795c1d95aef78deade9241fPauli Nieminen do { 294c5a5bbbe899400642795c1d95aef78deade9241fPauli Nieminen rv = chown(path, owner, group); 295c5a5bbbe899400642795c1d95aef78deade9241fPauli Nieminen } while (rv != 0 && errno == EINTR); 296c5a5bbbe899400642795c1d95aef78deade9241fPauli Nieminen 297c5a5bbbe899400642795c1d95aef78deade9241fPauli Nieminen if (rv == 0) 298c5a5bbbe899400642795c1d95aef78deade9241fPauli Nieminen return 0; 299c5a5bbbe899400642795c1d95aef78deade9241fPauli Nieminen 300c5a5bbbe899400642795c1d95aef78deade9241fPauli Nieminen drmMsg("Failed to change owner or group for file %s! %d: %s\n", 301c5a5bbbe899400642795c1d95aef78deade9241fPauli Nieminen path, errno, strerror(errno)); 302c5a5bbbe899400642795c1d95aef78deade9241fPauli Nieminen return -1; 303c5a5bbbe899400642795c1d95aef78deade9241fPauli Nieminen} 304c5a5bbbe899400642795c1d95aef78deade9241fPauli Nieminen 305c5a5bbbe899400642795c1d95aef78deade9241fPauli Nieminen/** 306d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * Open the DRM device, creating it if necessary. 307d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 308d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param dev major and minor numbers of the device. 309d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param minor minor number of the device. 310d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 311d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \return a file descriptor on success, or a negative value on error. 312d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 313d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \internal 314d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * Assembles the device name from \p minor and opens it, creating the device 315d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * special file node with the major and minor numbers specified by \p dev and 316d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * parent directory if necessary and was called by root. 317d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca */ 318731cd5526e5c732d51307b26e784f454a724a699Jesse Barnesstatic int drmOpenDevice(long dev, int minor, int type) 319b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss{ 3209c775d0b2f303389c24aea5e8abc1473f0cf93e8David Dawes stat_t st; 32188dbee54ed400a3fd5594fab506518c171167805Rik Faith char buf[64]; 32288dbee54ed400a3fd5594fab506518c171167805Rik Faith int fd; 32379038751ffe47ed1ce82766e027d98fd2f0e2c6aDave Airlie mode_t devmode = DRM_DEV_MODE, serv_mode; 32488dbee54ed400a3fd5594fab506518c171167805Rik Faith int isroot = !geteuid(); 32588dbee54ed400a3fd5594fab506518c171167805Rik Faith uid_t user = DRM_DEV_UID; 32679038751ffe47ed1ce82766e027d98fd2f0e2c6aDave Airlie gid_t group = DRM_DEV_GID, serv_group; 32779038751ffe47ed1ce82766e027d98fd2f0e2c6aDave Airlie 328731cd5526e5c732d51307b26e784f454a724a699Jesse Barnes sprintf(buf, type ? DRM_DEV_NAME : DRM_CONTROL_DEV_NAME, DRM_DIR_NAME, minor); 32906cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt drmMsg("drmOpenDevice: node name is %s\n", buf); 33056bd9c207770d41a497f3e8237a1099dd9d4cd91David Dawes 33179038751ffe47ed1ce82766e027d98fd2f0e2c6aDave Airlie if (drm_server_info) { 332ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian drm_server_info->get_perms(&serv_group, &serv_mode); 333ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian devmode = serv_mode ? serv_mode : DRM_DEV_MODE; 334ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian devmode &= ~(S_IXUSR|S_IXGRP|S_IXOTH); 335ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian group = (serv_group >= 0) ? serv_group : DRM_DEV_GID; 33679038751ffe47ed1ce82766e027d98fd2f0e2c6aDave Airlie } 337569da5a42ebf10c86d6c6ba81866a888e1c708dcBrian Paul 3389101a0205c897fea28e6a3d875111a83ad7f7732Dave Airlie#if !defined(UDEV) 33988dbee54ed400a3fd5594fab506518c171167805Rik Faith if (stat(DRM_DIR_NAME, &st)) { 340ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian if (!isroot) 341ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian return DRM_ERR_NOT_ROOT; 342b3a20ce219b353aa3e2b7f3b47ffd28b279557c7Alan Hourihane mkdir(DRM_DIR_NAME, DRM_DEV_DIRMODE); 343c5a5bbbe899400642795c1d95aef78deade9241fPauli Nieminen chown_check_return(DRM_DIR_NAME, 0, 0); /* root:root */ 344b3a20ce219b353aa3e2b7f3b47ffd28b279557c7Alan Hourihane chmod(DRM_DIR_NAME, DRM_DEV_DIRMODE); 345569da5a42ebf10c86d6c6ba81866a888e1c708dcBrian Paul } 346b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 34706cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt /* Check if the device node exists and create it if necessary. */ 348d2f2b42f1d206fd248ada48ce2c498e31351ab33Eric Anholt if (stat(buf, &st)) { 349ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian if (!isroot) 350ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian return DRM_ERR_NOT_ROOT; 35188dbee54ed400a3fd5594fab506518c171167805Rik Faith remove(buf); 35288dbee54ed400a3fd5594fab506518c171167805Rik Faith mknod(buf, S_IFCHR | devmode, dev); 353b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss } 35479038751ffe47ed1ce82766e027d98fd2f0e2c6aDave Airlie 35579038751ffe47ed1ce82766e027d98fd2f0e2c6aDave Airlie if (drm_server_info) { 356c5a5bbbe899400642795c1d95aef78deade9241fPauli Nieminen chown_check_return(buf, user, group); 357ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian chmod(buf, devmode); 35879038751ffe47ed1ce82766e027d98fd2f0e2c6aDave Airlie } 3599101a0205c897fea28e6a3d875111a83ad7f7732Dave Airlie#else 3609101a0205c897fea28e6a3d875111a83ad7f7732Dave Airlie /* if we modprobed then wait for udev */ 3619101a0205c897fea28e6a3d875111a83ad7f7732Dave Airlie { 3629101a0205c897fea28e6a3d875111a83ad7f7732Dave Airlie int udev_count = 0; 3639101a0205c897fea28e6a3d875111a83ad7f7732Dave Airliewait_for_udev: 3649101a0205c897fea28e6a3d875111a83ad7f7732Dave Airlie if (stat(DRM_DIR_NAME, &st)) { 3659101a0205c897fea28e6a3d875111a83ad7f7732Dave Airlie usleep(20); 3669101a0205c897fea28e6a3d875111a83ad7f7732Dave Airlie udev_count++; 3679101a0205c897fea28e6a3d875111a83ad7f7732Dave Airlie 3689101a0205c897fea28e6a3d875111a83ad7f7732Dave Airlie if (udev_count == 50) 3699101a0205c897fea28e6a3d875111a83ad7f7732Dave Airlie return -1; 3709101a0205c897fea28e6a3d875111a83ad7f7732Dave Airlie goto wait_for_udev; 3719101a0205c897fea28e6a3d875111a83ad7f7732Dave Airlie } 3729101a0205c897fea28e6a3d875111a83ad7f7732Dave Airlie 3739101a0205c897fea28e6a3d875111a83ad7f7732Dave Airlie if (stat(buf, &st)) { 3749101a0205c897fea28e6a3d875111a83ad7f7732Dave Airlie usleep(20); 3759101a0205c897fea28e6a3d875111a83ad7f7732Dave Airlie udev_count++; 3769101a0205c897fea28e6a3d875111a83ad7f7732Dave Airlie 3779101a0205c897fea28e6a3d875111a83ad7f7732Dave Airlie if (udev_count == 50) 3789101a0205c897fea28e6a3d875111a83ad7f7732Dave Airlie return -1; 3799101a0205c897fea28e6a3d875111a83ad7f7732Dave Airlie goto wait_for_udev; 3809101a0205c897fea28e6a3d875111a83ad7f7732Dave Airlie } 3819101a0205c897fea28e6a3d875111a83ad7f7732Dave Airlie } 3829101a0205c897fea28e6a3d875111a83ad7f7732Dave Airlie#endif 38388dbee54ed400a3fd5594fab506518c171167805Rik Faith 38456bd9c207770d41a497f3e8237a1099dd9d4cd91David Dawes fd = open(buf, O_RDWR, 0); 38556bd9c207770d41a497f3e8237a1099dd9d4cd91David Dawes drmMsg("drmOpenDevice: open result is %d, (%s)\n", 38656bd9c207770d41a497f3e8237a1099dd9d4cd91David Dawes fd, fd < 0 ? strerror(errno) : "OK"); 387ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian if (fd >= 0) 388ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian return fd; 389d2f2b42f1d206fd248ada48ce2c498e31351ab33Eric Anholt 39006cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt /* Check if the device node is not what we expect it to be, and recreate it 39106cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt * and try again if so. 39206cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt */ 393d2f2b42f1d206fd248ada48ce2c498e31351ab33Eric Anholt if (st.st_rdev != dev) { 394ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian if (!isroot) 395ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian return DRM_ERR_NOT_ROOT; 396d2f2b42f1d206fd248ada48ce2c498e31351ab33Eric Anholt remove(buf); 397d2f2b42f1d206fd248ada48ce2c498e31351ab33Eric Anholt mknod(buf, S_IFCHR | devmode, dev); 39879038751ffe47ed1ce82766e027d98fd2f0e2c6aDave Airlie if (drm_server_info) { 399c5a5bbbe899400642795c1d95aef78deade9241fPauli Nieminen chown_check_return(buf, user, group); 400ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian chmod(buf, devmode); 40179038751ffe47ed1ce82766e027d98fd2f0e2c6aDave Airlie } 402d2f2b42f1d206fd248ada48ce2c498e31351ab33Eric Anholt } 403d2f2b42f1d206fd248ada48ce2c498e31351ab33Eric Anholt fd = open(buf, O_RDWR, 0); 404d2f2b42f1d206fd248ada48ce2c498e31351ab33Eric Anholt drmMsg("drmOpenDevice: open result is %d, (%s)\n", 405d2f2b42f1d206fd248ada48ce2c498e31351ab33Eric Anholt fd, fd < 0 ? strerror(errno) : "OK"); 406ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian if (fd >= 0) 407ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian return fd; 408d2f2b42f1d206fd248ada48ce2c498e31351ab33Eric Anholt 40956bd9c207770d41a497f3e8237a1099dd9d4cd91David Dawes drmMsg("drmOpenDevice: Open failed\n"); 41088dbee54ed400a3fd5594fab506518c171167805Rik Faith remove(buf); 41188dbee54ed400a3fd5594fab506518c171167805Rik Faith return -errno; 412b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss} 413b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 414d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca 415d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca/** 416d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * Open the DRM device 417d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 418d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param minor device minor number. 419d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param create allow to create the device if set. 420d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 421d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \return a file descriptor on success, or a negative value on error. 422d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 423d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \internal 424d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * Calls drmOpenDevice() if \p create is set, otherwise assembles the device 425d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * name from \p minor and opens it. 426d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca */ 427731cd5526e5c732d51307b26e784f454a724a699Jesse Barnesstatic int drmOpenMinor(int minor, int create, int type) 42888dbee54ed400a3fd5594fab506518c171167805Rik Faith{ 42988dbee54ed400a3fd5594fab506518c171167805Rik Faith int fd; 43088dbee54ed400a3fd5594fab506518c171167805Rik Faith char buf[64]; 431db85ed25afc616acfaadb21facf6066354f9d490Dave Airlie 432ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian if (create) 433731cd5526e5c732d51307b26e784f454a724a699Jesse Barnes return drmOpenDevice(makedev(DRM_MAJOR, minor), minor, type); 43488dbee54ed400a3fd5594fab506518c171167805Rik Faith 435731cd5526e5c732d51307b26e784f454a724a699Jesse Barnes sprintf(buf, type ? DRM_DEV_NAME : DRM_CONTROL_DEV_NAME, DRM_DIR_NAME, minor); 436ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian if ((fd = open(buf, O_RDWR, 0)) >= 0) 437ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian return fd; 43888dbee54ed400a3fd5594fab506518c171167805Rik Faith return -errno; 43988dbee54ed400a3fd5594fab506518c171167805Rik Faith} 44088dbee54ed400a3fd5594fab506518c171167805Rik Faith 441569da5a42ebf10c86d6c6ba81866a888e1c708dcBrian Paul 442d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca/** 443d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * Determine whether the DRM kernel driver has been loaded. 444d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 445d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \return 1 if the DRM driver is loaded, 0 otherwise. 446d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 447d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \internal 448d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * Determine the presence of the kernel driver by attempting to open the 0 449d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * minor and get version information. For backward compatibility with older 450d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * Linux implementations, /proc/dri is also checked. 451d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca */ 452569da5a42ebf10c86d6c6ba81866a888e1c708dcBrian Paulint drmAvailable(void) 453569da5a42ebf10c86d6c6ba81866a888e1c708dcBrian Paul{ 454569da5a42ebf10c86d6c6ba81866a888e1c708dcBrian Paul drmVersionPtr version; 455569da5a42ebf10c86d6c6ba81866a888e1c708dcBrian Paul int retval = 0; 456569da5a42ebf10c86d6c6ba81866a888e1c708dcBrian Paul int fd; 457360475376c5a597caf4a981c934a6b0d783fa94dGareth Hughes 458731cd5526e5c732d51307b26e784f454a724a699Jesse Barnes if ((fd = drmOpenMinor(0, 1, DRM_NODE_RENDER)) < 0) { 459b0a928557c91fec527f41ae8b2441174889bf32cAlan Hourihane#ifdef __linux__ 46022e41ef08338ae6dd59acbe6d4d8e50d83672816Adam Jackson /* Try proc for backward Linux compatibility */ 461ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian if (!access("/proc/dri/0", R_OK)) 462ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian return 1; 463b0a928557c91fec527f41ae8b2441174889bf32cAlan Hourihane#endif 46488dbee54ed400a3fd5594fab506518c171167805Rik Faith return 0; 465569da5a42ebf10c86d6c6ba81866a888e1c708dcBrian Paul } 46688dbee54ed400a3fd5594fab506518c171167805Rik Faith 46788dbee54ed400a3fd5594fab506518c171167805Rik Faith if ((version = drmGetVersion(fd))) { 46888dbee54ed400a3fd5594fab506518c171167805Rik Faith retval = 1; 46988dbee54ed400a3fd5594fab506518c171167805Rik Faith drmFreeVersion(version); 47088dbee54ed400a3fd5594fab506518c171167805Rik Faith } 47188dbee54ed400a3fd5594fab506518c171167805Rik Faith close(fd); 472569da5a42ebf10c86d6c6ba81866a888e1c708dcBrian Paul 473569da5a42ebf10c86d6c6ba81866a888e1c708dcBrian Paul return retval; 474569da5a42ebf10c86d6c6ba81866a888e1c708dcBrian Paul} 475569da5a42ebf10c86d6c6ba81866a888e1c708dcBrian Paul 476d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca 477d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca/** 478d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * Open the device by bus ID. 479d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 480d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param busid bus ID. 481d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 482d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \return a file descriptor on success, or a negative value on error. 483d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 484d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \internal 485d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * This function attempts to open every possible minor (up to DRM_MAX_MINOR), 486d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * comparing the device bus ID with the one supplied. 487d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 488d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \sa drmOpenMinor() and drmGetBusid(). 489d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca */ 490e1dba5c3a73078dec24f07a6d685435677db94a4Daryll Straussstatic int drmOpenByBusid(const char *busid) 491e1dba5c3a73078dec24f07a6d685435677db94a4Daryll Strauss{ 492b04515c5d6c95f573457a94267b855cceb639105Benjamin Herrenschmidt int i, pci_domain_ok = 1; 49388dbee54ed400a3fd5594fab506518c171167805Rik Faith int fd; 49488dbee54ed400a3fd5594fab506518c171167805Rik Faith const char *buf; 49506cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt drmSetVersion sv; 49606cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt 49706cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt drmMsg("drmOpenByBusid: Searching for BusID %s\n", busid); 498db85ed25afc616acfaadb21facf6066354f9d490Dave Airlie for (i = 0; i < DRM_MAX_MINOR; i++) { 499731cd5526e5c732d51307b26e784f454a724a699Jesse Barnes fd = drmOpenMinor(i, 1, DRM_NODE_RENDER); 50056bd9c207770d41a497f3e8237a1099dd9d4cd91David Dawes drmMsg("drmOpenByBusid: drmOpenMinor returns %d\n", fd); 50156bd9c207770d41a497f3e8237a1099dd9d4cd91David Dawes if (fd >= 0) { 502b04515c5d6c95f573457a94267b855cceb639105Benjamin Herrenschmidt /* We need to try for 1.4 first for proper PCI domain support 503b04515c5d6c95f573457a94267b855cceb639105Benjamin Herrenschmidt * and if that fails, we know the kernel is busted 504b04515c5d6c95f573457a94267b855cceb639105Benjamin Herrenschmidt */ 50506cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt sv.drm_di_major = 1; 506b04515c5d6c95f573457a94267b855cceb639105Benjamin Herrenschmidt sv.drm_di_minor = 4; 50706cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt sv.drm_dd_major = -1; /* Don't care */ 50826462b9aa47179e724e78f0b3b1c86fd07f61d8dEric Anholt sv.drm_dd_minor = -1; /* Don't care */ 509b04515c5d6c95f573457a94267b855cceb639105Benjamin Herrenschmidt if (drmSetInterfaceVersion(fd, &sv)) { 510b04515c5d6c95f573457a94267b855cceb639105Benjamin Herrenschmidt#ifndef __alpha__ 511b04515c5d6c95f573457a94267b855cceb639105Benjamin Herrenschmidt pci_domain_ok = 0; 512b04515c5d6c95f573457a94267b855cceb639105Benjamin Herrenschmidt#endif 513b04515c5d6c95f573457a94267b855cceb639105Benjamin Herrenschmidt sv.drm_di_major = 1; 514b04515c5d6c95f573457a94267b855cceb639105Benjamin Herrenschmidt sv.drm_di_minor = 1; 515b04515c5d6c95f573457a94267b855cceb639105Benjamin Herrenschmidt sv.drm_dd_major = -1; /* Don't care */ 516b04515c5d6c95f573457a94267b855cceb639105Benjamin Herrenschmidt sv.drm_dd_minor = -1; /* Don't care */ 517b04515c5d6c95f573457a94267b855cceb639105Benjamin Herrenschmidt drmMsg("drmOpenByBusid: Interface 1.4 failed, trying 1.1\n",fd); 518b04515c5d6c95f573457a94267b855cceb639105Benjamin Herrenschmidt drmSetInterfaceVersion(fd, &sv); 519b04515c5d6c95f573457a94267b855cceb639105Benjamin Herrenschmidt } 520e1dba5c3a73078dec24f07a6d685435677db94a4Daryll Strauss buf = drmGetBusid(fd); 52156bd9c207770d41a497f3e8237a1099dd9d4cd91David Dawes drmMsg("drmOpenByBusid: drmGetBusid reports %s\n", buf); 522b04515c5d6c95f573457a94267b855cceb639105Benjamin Herrenschmidt if (buf && drmMatchBusID(buf, busid, pci_domain_ok)) { 52388dbee54ed400a3fd5594fab506518c171167805Rik Faith drmFreeBusid(buf); 52488dbee54ed400a3fd5594fab506518c171167805Rik Faith return fd; 525e1dba5c3a73078dec24f07a6d685435677db94a4Daryll Strauss } 526ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian if (buf) 527ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian drmFreeBusid(buf); 528e1dba5c3a73078dec24f07a6d685435677db94a4Daryll Strauss close(fd); 529e1dba5c3a73078dec24f07a6d685435677db94a4Daryll Strauss } 530e1dba5c3a73078dec24f07a6d685435677db94a4Daryll Strauss } 531e1dba5c3a73078dec24f07a6d685435677db94a4Daryll Strauss return -1; 532e1dba5c3a73078dec24f07a6d685435677db94a4Daryll Strauss} 533e1dba5c3a73078dec24f07a6d685435677db94a4Daryll Strauss 534d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca 535d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca/** 536d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * Open the device by name. 537d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 538d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param name driver name. 539d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 540d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \return a file descriptor on success, or a negative value on error. 541d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 542d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \internal 543d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * This function opens the first minor number that matches the driver name and 544d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * isn't already in use. If it's in use it then it will already have a bus ID 545d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * assigned. 546d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 547d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \sa drmOpenMinor(), drmGetVersion() and drmGetBusid(). 548d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca */ 549b6a28bfe98f2c89cfb91079bd3c7b63fb0144eb1Daryll Straussstatic int drmOpenByName(const char *name) 550b6a28bfe98f2c89cfb91079bd3c7b63fb0144eb1Daryll Strauss{ 55188dbee54ed400a3fd5594fab506518c171167805Rik Faith int i; 55288dbee54ed400a3fd5594fab506518c171167805Rik Faith int fd; 55388dbee54ed400a3fd5594fab506518c171167805Rik Faith drmVersionPtr version; 55456bd9c207770d41a497f3e8237a1099dd9d4cd91David Dawes char * id; 55588dbee54ed400a3fd5594fab506518c171167805Rik Faith 556db85ed25afc616acfaadb21facf6066354f9d490Dave Airlie if (!drmAvailable()) { 557db85ed25afc616acfaadb21facf6066354f9d490Dave Airlie if (!drm_server_info) { 558db85ed25afc616acfaadb21facf6066354f9d490Dave Airlie return -1; 559db85ed25afc616acfaadb21facf6066354f9d490Dave Airlie } 560db85ed25afc616acfaadb21facf6066354f9d490Dave Airlie else { 561db85ed25afc616acfaadb21facf6066354f9d490Dave Airlie /* try to load the kernel module now */ 562db85ed25afc616acfaadb21facf6066354f9d490Dave Airlie if (!drm_server_info->load_module(name)) { 563db85ed25afc616acfaadb21facf6066354f9d490Dave Airlie drmMsg("[drm] failed to load kernel module \"%s\"\n", name); 564db85ed25afc616acfaadb21facf6066354f9d490Dave Airlie return -1; 565db85ed25afc616acfaadb21facf6066354f9d490Dave Airlie } 566db85ed25afc616acfaadb21facf6066354f9d490Dave Airlie } 567db85ed25afc616acfaadb21facf6066354f9d490Dave Airlie } 568db85ed25afc616acfaadb21facf6066354f9d490Dave Airlie 56956bd9c207770d41a497f3e8237a1099dd9d4cd91David Dawes /* 57056bd9c207770d41a497f3e8237a1099dd9d4cd91David Dawes * Open the first minor number that matches the driver name and isn't 57156bd9c207770d41a497f3e8237a1099dd9d4cd91David Dawes * already in use. If it's in use it will have a busid assigned already. 57256bd9c207770d41a497f3e8237a1099dd9d4cd91David Dawes */ 573db85ed25afc616acfaadb21facf6066354f9d490Dave Airlie for (i = 0; i < DRM_MAX_MINOR; i++) { 574731cd5526e5c732d51307b26e784f454a724a699Jesse Barnes if ((fd = drmOpenMinor(i, 1, DRM_NODE_RENDER)) >= 0) { 57588dbee54ed400a3fd5594fab506518c171167805Rik Faith if ((version = drmGetVersion(fd))) { 57688dbee54ed400a3fd5594fab506518c171167805Rik Faith if (!strcmp(version->name, name)) { 57788dbee54ed400a3fd5594fab506518c171167805Rik Faith drmFreeVersion(version); 57856bd9c207770d41a497f3e8237a1099dd9d4cd91David Dawes id = drmGetBusid(fd); 57956bd9c207770d41a497f3e8237a1099dd9d4cd91David Dawes drmMsg("drmGetBusid returned '%s'\n", id ? id : "NULL"); 58056bd9c207770d41a497f3e8237a1099dd9d4cd91David Dawes if (!id || !*id) { 58122e41ef08338ae6dd59acbe6d4d8e50d83672816Adam Jackson if (id) 58256bd9c207770d41a497f3e8237a1099dd9d4cd91David Dawes drmFreeBusid(id); 58356bd9c207770d41a497f3e8237a1099dd9d4cd91David Dawes return fd; 58456bd9c207770d41a497f3e8237a1099dd9d4cd91David Dawes } else { 58556bd9c207770d41a497f3e8237a1099dd9d4cd91David Dawes drmFreeBusid(id); 58656bd9c207770d41a497f3e8237a1099dd9d4cd91David Dawes } 58756bd9c207770d41a497f3e8237a1099dd9d4cd91David Dawes } else { 58856bd9c207770d41a497f3e8237a1099dd9d4cd91David Dawes drmFreeVersion(version); 58988dbee54ed400a3fd5594fab506518c171167805Rik Faith } 59088dbee54ed400a3fd5594fab506518c171167805Rik Faith } 59156bd9c207770d41a497f3e8237a1099dd9d4cd91David Dawes close(fd); 59288dbee54ed400a3fd5594fab506518c171167805Rik Faith } 593b6a28bfe98f2c89cfb91079bd3c7b63fb0144eb1Daryll Strauss } 594b6a28bfe98f2c89cfb91079bd3c7b63fb0144eb1Daryll Strauss 59588dbee54ed400a3fd5594fab506518c171167805Rik Faith#ifdef __linux__ 59622e41ef08338ae6dd59acbe6d4d8e50d83672816Adam Jackson /* Backward-compatibility /proc support */ 597b6a28bfe98f2c89cfb91079bd3c7b63fb0144eb1Daryll Strauss for (i = 0; i < 8; i++) { 59888dbee54ed400a3fd5594fab506518c171167805Rik Faith char proc_name[64], buf[512]; 59988dbee54ed400a3fd5594fab506518c171167805Rik Faith char *driver, *pt, *devstring; 60088dbee54ed400a3fd5594fab506518c171167805Rik Faith int retcode; 60188dbee54ed400a3fd5594fab506518c171167805Rik Faith 6020371c290a12f75d36c9c1e7c947bf98fe210908bDaryll Strauss sprintf(proc_name, "/proc/dri/%d/name", i); 603b6a28bfe98f2c89cfb91079bd3c7b63fb0144eb1Daryll Strauss if ((fd = open(proc_name, 0, 0)) >= 0) { 604b6a28bfe98f2c89cfb91079bd3c7b63fb0144eb1Daryll Strauss retcode = read(fd, buf, sizeof(buf)-1); 605b6a28bfe98f2c89cfb91079bd3c7b63fb0144eb1Daryll Strauss close(fd); 606b6a28bfe98f2c89cfb91079bd3c7b63fb0144eb1Daryll Strauss if (retcode) { 607b6a28bfe98f2c89cfb91079bd3c7b63fb0144eb1Daryll Strauss buf[retcode-1] = '\0'; 608b6a28bfe98f2c89cfb91079bd3c7b63fb0144eb1Daryll Strauss for (driver = pt = buf; *pt && *pt != ' '; ++pt) 609b6a28bfe98f2c89cfb91079bd3c7b63fb0144eb1Daryll Strauss ; 61022e41ef08338ae6dd59acbe6d4d8e50d83672816Adam Jackson if (*pt) { /* Device is next */ 611b6a28bfe98f2c89cfb91079bd3c7b63fb0144eb1Daryll Strauss *pt = '\0'; 612b6a28bfe98f2c89cfb91079bd3c7b63fb0144eb1Daryll Strauss if (!strcmp(driver, name)) { /* Match */ 613b6a28bfe98f2c89cfb91079bd3c7b63fb0144eb1Daryll Strauss for (devstring = ++pt; *pt && *pt != ' '; ++pt) 614b6a28bfe98f2c89cfb91079bd3c7b63fb0144eb1Daryll Strauss ; 615b6a28bfe98f2c89cfb91079bd3c7b63fb0144eb1Daryll Strauss if (*pt) { /* Found busid */ 61688dbee54ed400a3fd5594fab506518c171167805Rik Faith return drmOpenByBusid(++pt); 61722e41ef08338ae6dd59acbe6d4d8e50d83672816Adam Jackson } else { /* No busid */ 618731cd5526e5c732d51307b26e784f454a724a699Jesse Barnes return drmOpenDevice(strtol(devstring, NULL, 0),i, DRM_NODE_RENDER); 619b6a28bfe98f2c89cfb91079bd3c7b63fb0144eb1Daryll Strauss } 620b6a28bfe98f2c89cfb91079bd3c7b63fb0144eb1Daryll Strauss } 621b6a28bfe98f2c89cfb91079bd3c7b63fb0144eb1Daryll Strauss } 622b6a28bfe98f2c89cfb91079bd3c7b63fb0144eb1Daryll Strauss } 623569da5a42ebf10c86d6c6ba81866a888e1c708dcBrian Paul } 624b6a28bfe98f2c89cfb91079bd3c7b63fb0144eb1Daryll Strauss } 62588dbee54ed400a3fd5594fab506518c171167805Rik Faith#endif 62688dbee54ed400a3fd5594fab506518c171167805Rik Faith 627b6a28bfe98f2c89cfb91079bd3c7b63fb0144eb1Daryll Strauss return -1; 628b6a28bfe98f2c89cfb91079bd3c7b63fb0144eb1Daryll Strauss} 629b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 630b6a28bfe98f2c89cfb91079bd3c7b63fb0144eb1Daryll Strauss 631d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca/** 632d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * Open the DRM device. 633d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 634d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * Looks up the specified name and bus ID, and opens the device found. The 635d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * entry in /dev/dri is created if necessary and if called by root. 636d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 637d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param name driver name. Not referenced if bus ID is supplied. 638d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param busid bus ID. Zero if not known. 639d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 640d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \return a file descriptor on success, or a negative value on error. 641d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 642d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \internal 643d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * It calls drmOpenByBusid() if \p busid is specified or drmOpenByName() 644d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * otherwise. 645d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca */ 646b6a28bfe98f2c89cfb91079bd3c7b63fb0144eb1Daryll Straussint drmOpen(const char *name, const char *busid) 647b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss{ 64879038751ffe47ed1ce82766e027d98fd2f0e2c6aDave Airlie if (!drmAvailable() && name != NULL && drm_server_info) { 64906cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt /* try to load the kernel */ 65079038751ffe47ed1ce82766e027d98fd2f0e2c6aDave Airlie if (!drm_server_info->load_module(name)) { 651ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian drmMsg("[drm] failed to load kernel module \"%s\"\n", name); 65206cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt return -1; 65306cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt } 65406cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt } 65506cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt 65606cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt if (busid) { 657ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian int fd = drmOpenByBusid(busid); 65806cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt if (fd >= 0) 65906cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt return fd; 66006cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt } 66122e41ef08338ae6dd59acbe6d4d8e50d83672816Adam Jackson 66206cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt if (name) 66306cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt return drmOpenByName(name); 66422e41ef08338ae6dd59acbe6d4d8e50d83672816Adam Jackson 66506cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt return -1; 666b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss} 667b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 668731cd5526e5c732d51307b26e784f454a724a699Jesse Barnesint drmOpenControl(int minor) 669731cd5526e5c732d51307b26e784f454a724a699Jesse Barnes{ 670731cd5526e5c732d51307b26e784f454a724a699Jesse Barnes return drmOpenMinor(minor, 0, DRM_NODE_CONTROL); 671731cd5526e5c732d51307b26e784f454a724a699Jesse Barnes} 672d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca 673d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca/** 674d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * Free the version information returned by drmGetVersion(). 675d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 676d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param v pointer to the version information. 677d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 678d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \internal 679d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * It frees the memory pointed by \p %v as well as all the non-null strings 680d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * pointers in it. 681d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca */ 682b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Straussvoid drmFreeVersion(drmVersionPtr v) 683b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss{ 684ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian if (!v) 685ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian return; 6869d8ba2d0d479f53b996c0a0e366acfee52daab3bJakob Bornecrantz drmFree(v->name); 6879d8ba2d0d479f53b996c0a0e366acfee52daab3bJakob Bornecrantz drmFree(v->date); 6889d8ba2d0d479f53b996c0a0e366acfee52daab3bJakob Bornecrantz drmFree(v->desc); 689b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss drmFree(v); 690b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss} 691b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 692d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca 693d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca/** 694d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * Free the non-public version information returned by the kernel. 695d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 696d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param v pointer to the version information. 697d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 698d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \internal 699d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * Used by drmGetVersion() to free the memory pointed by \p %v as well as all 700d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * the non-null strings pointers in it. 701d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca */ 702b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Straussstatic void drmFreeKernelVersion(drm_version_t *v) 703b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss{ 704ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian if (!v) 705ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian return; 7069d8ba2d0d479f53b996c0a0e366acfee52daab3bJakob Bornecrantz drmFree(v->name); 7079d8ba2d0d479f53b996c0a0e366acfee52daab3bJakob Bornecrantz drmFree(v->date); 7089d8ba2d0d479f53b996c0a0e366acfee52daab3bJakob Bornecrantz drmFree(v->desc); 709b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss drmFree(v); 710b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss} 711b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 712d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca 713d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca/** 714d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * Copy version information. 715d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 716d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param d destination pointer. 717d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param s source pointer. 718d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 719d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \internal 720d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * Used by drmGetVersion() to translate the information returned by the ioctl 721d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * interface in a private structure into the public structure counterpart. 722d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca */ 723569da5a42ebf10c86d6c6ba81866a888e1c708dcBrian Paulstatic void drmCopyVersion(drmVersionPtr d, const drm_version_t *s) 724b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss{ 725b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss d->version_major = s->version_major; 726b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss d->version_minor = s->version_minor; 727b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss d->version_patchlevel = s->version_patchlevel; 728b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss d->name_len = s->name_len; 729b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss d->name = drmStrdup(s->name); 730b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss d->date_len = s->date_len; 731b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss d->date = drmStrdup(s->date); 732b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss d->desc_len = s->desc_len; 733b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss d->desc = drmStrdup(s->desc); 734b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss} 735b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 736b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 737d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca/** 738d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * Query the driver version information. 739d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 740d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param fd file descriptor. 741d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 742d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \return pointer to a drmVersion structure which should be freed with 743d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * drmFreeVersion(). 744d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 745d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \note Similar information is available via /proc/dri. 746d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 747d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \internal 748d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * It gets the version information via successive DRM_IOCTL_VERSION ioctls, 749d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * first with zeros to get the string lengths, and then the actually strings. 750d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * It also null-terminates them since they might not be already. 751d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca */ 752b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll StraussdrmVersionPtr drmGetVersion(int fd) 753b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss{ 754b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss drmVersionPtr retval; 755b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss drm_version_t *version = drmMalloc(sizeof(*version)); 756b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 757b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss version->name_len = 0; 758b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss version->name = NULL; 759b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss version->date_len = 0; 760b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss version->date = NULL; 761b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss version->desc_len = 0; 762b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss version->desc = NULL; 763360475376c5a597caf4a981c934a6b0d783fa94dGareth Hughes 7648b9ab108ec1f2ba2b503f713769c4946849b3cb2Keith Packard if (drmIoctl(fd, DRM_IOCTL_VERSION, version)) { 765b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss drmFreeKernelVersion(version); 766b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss return NULL; 767b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss } 768b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 769b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss if (version->name_len) 770b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss version->name = drmMalloc(version->name_len + 1); 771b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss if (version->date_len) 772b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss version->date = drmMalloc(version->date_len + 1); 773b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss if (version->desc_len) 774b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss version->desc = drmMalloc(version->desc_len + 1); 775360475376c5a597caf4a981c934a6b0d783fa94dGareth Hughes 7768b9ab108ec1f2ba2b503f713769c4946849b3cb2Keith Packard if (drmIoctl(fd, DRM_IOCTL_VERSION, version)) { 777b0a928557c91fec527f41ae8b2441174889bf32cAlan Hourihane drmMsg("DRM_IOCTL_VERSION: %s\n", strerror(errno)); 778b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss drmFreeKernelVersion(version); 779b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss return NULL; 780b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss } 781b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 78222e41ef08338ae6dd59acbe6d4d8e50d83672816Adam Jackson /* The results might not be null-terminated strings, so terminate them. */ 783b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss if (version->name_len) version->name[version->name_len] = '\0'; 784b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss if (version->date_len) version->date[version->date_len] = '\0'; 785b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss if (version->desc_len) version->desc[version->desc_len] = '\0'; 786b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 787b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss retval = drmMalloc(sizeof(*retval)); 788b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss drmCopyVersion(retval, version); 789b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss drmFreeKernelVersion(version); 790b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss return retval; 791b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss} 792b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 7933903e5ac94c07cf31f0bc24eff5011ef8cc7afbaJens Owen 794d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca/** 795d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * Get version information for the DRM user space library. 796d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 797d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * This version number is driver independent. 798d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 799d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param fd file descriptor. 800d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 801d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \return version information. 802d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 803d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \internal 804d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * This function allocates and fills a drm_version structure with a hard coded 805d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * version number. 806d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca */ 8073903e5ac94c07cf31f0bc24eff5011ef8cc7afbaJens OwendrmVersionPtr drmGetLibVersion(int fd) 8083903e5ac94c07cf31f0bc24eff5011ef8cc7afbaJens Owen{ 8093903e5ac94c07cf31f0bc24eff5011ef8cc7afbaJens Owen drm_version_t *version = drmMalloc(sizeof(*version)); 8103903e5ac94c07cf31f0bc24eff5011ef8cc7afbaJens Owen 8113903e5ac94c07cf31f0bc24eff5011ef8cc7afbaJens Owen /* Version history: 81279038751ffe47ed1ce82766e027d98fd2f0e2c6aDave Airlie * NOTE THIS MUST NOT GO ABOVE VERSION 1.X due to drivers needing it 8133903e5ac94c07cf31f0bc24eff5011ef8cc7afbaJens Owen * revision 1.0.x = original DRM interface with no drmGetLibVersion 8143903e5ac94c07cf31f0bc24eff5011ef8cc7afbaJens Owen * entry point and many drm<Device> extensions 8153903e5ac94c07cf31f0bc24eff5011ef8cc7afbaJens Owen * revision 1.1.x = added drmCommand entry points for device extensions 8163903e5ac94c07cf31f0bc24eff5011ef8cc7afbaJens Owen * added drmGetLibVersion to identify libdrm.a version 81706cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt * revision 1.2.x = added drmSetInterfaceVersion 81806cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt * modified drmOpen to handle both busid and name 81979038751ffe47ed1ce82766e027d98fd2f0e2c6aDave Airlie * revision 1.3.x = added server + memory manager 8203903e5ac94c07cf31f0bc24eff5011ef8cc7afbaJens Owen */ 82179038751ffe47ed1ce82766e027d98fd2f0e2c6aDave Airlie version->version_major = 1; 82279038751ffe47ed1ce82766e027d98fd2f0e2c6aDave Airlie version->version_minor = 3; 8233903e5ac94c07cf31f0bc24eff5011ef8cc7afbaJens Owen version->version_patchlevel = 0; 8243903e5ac94c07cf31f0bc24eff5011ef8cc7afbaJens Owen 8253903e5ac94c07cf31f0bc24eff5011ef8cc7afbaJens Owen return (drmVersionPtr)version; 8263903e5ac94c07cf31f0bc24eff5011ef8cc7afbaJens Owen} 8273903e5ac94c07cf31f0bc24eff5011ef8cc7afbaJens Owen 828d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca 829d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca/** 830d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * Free the bus ID information. 831d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 832d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param busid bus ID information string as given by drmGetBusid(). 833d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 834d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \internal 835d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * This function is just frees the memory pointed by \p busid. 836d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca */ 837b6a28bfe98f2c89cfb91079bd3c7b63fb0144eb1Daryll Straussvoid drmFreeBusid(const char *busid) 838b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss{ 839b6a28bfe98f2c89cfb91079bd3c7b63fb0144eb1Daryll Strauss drmFree((void *)busid); 840b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss} 841b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 842d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca 843d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca/** 844d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * Get the bus ID of the device. 845d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 846d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param fd file descriptor. 847d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 848d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \return bus ID string. 849d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 850d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \internal 851d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * This function gets the bus ID via successive DRM_IOCTL_GET_UNIQUE ioctls to 852d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * get the string length and data, passing the arguments in a drm_unique 853d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * structure. 854d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca */ 855b6a28bfe98f2c89cfb91079bd3c7b63fb0144eb1Daryll Strausschar *drmGetBusid(int fd) 856b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss{ 857b6a28bfe98f2c89cfb91079bd3c7b63fb0144eb1Daryll Strauss drm_unique_t u; 858b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 859b6a28bfe98f2c89cfb91079bd3c7b63fb0144eb1Daryll Strauss u.unique_len = 0; 860b6a28bfe98f2c89cfb91079bd3c7b63fb0144eb1Daryll Strauss u.unique = NULL; 861b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 8628b9ab108ec1f2ba2b503f713769c4946849b3cb2Keith Packard if (drmIoctl(fd, DRM_IOCTL_GET_UNIQUE, &u)) 863ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian return NULL; 864b6a28bfe98f2c89cfb91079bd3c7b63fb0144eb1Daryll Strauss u.unique = drmMalloc(u.unique_len + 1); 8658b9ab108ec1f2ba2b503f713769c4946849b3cb2Keith Packard if (drmIoctl(fd, DRM_IOCTL_GET_UNIQUE, &u)) 866ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian return NULL; 867b6a28bfe98f2c89cfb91079bd3c7b63fb0144eb1Daryll Strauss u.unique[u.unique_len] = '\0'; 86806cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt 869b6a28bfe98f2c89cfb91079bd3c7b63fb0144eb1Daryll Strauss return u.unique; 870b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss} 871b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 872d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca 873d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca/** 874d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * Set the bus ID of the device. 875d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 876d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param fd file descriptor. 877d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param busid bus ID string. 878d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 879d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \return zero on success, negative on failure. 880d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 881d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \internal 882d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * This function is a wrapper around the DRM_IOCTL_SET_UNIQUE ioctl, passing 883d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * the arguments in a drm_unique structure. 884d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca */ 885b6a28bfe98f2c89cfb91079bd3c7b63fb0144eb1Daryll Straussint drmSetBusid(int fd, const char *busid) 886b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss{ 887b6a28bfe98f2c89cfb91079bd3c7b63fb0144eb1Daryll Strauss drm_unique_t u; 888b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 889b6a28bfe98f2c89cfb91079bd3c7b63fb0144eb1Daryll Strauss u.unique = (char *)busid; 890b6a28bfe98f2c89cfb91079bd3c7b63fb0144eb1Daryll Strauss u.unique_len = strlen(busid); 891b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 8928b9ab108ec1f2ba2b503f713769c4946849b3cb2Keith Packard if (drmIoctl(fd, DRM_IOCTL_SET_UNIQUE, &u)) { 89356bd9c207770d41a497f3e8237a1099dd9d4cd91David Dawes return -errno; 89456bd9c207770d41a497f3e8237a1099dd9d4cd91David Dawes } 895b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss return 0; 896b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss} 897b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 8988696e71db2d79eb318c00abde625d7b61d6800a1Jon Smirlint drmGetMagic(int fd, drm_magic_t * magic) 899b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss{ 900b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss drm_auth_t auth; 901b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 902b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss *magic = 0; 9038b9ab108ec1f2ba2b503f713769c4946849b3cb2Keith Packard if (drmIoctl(fd, DRM_IOCTL_GET_MAGIC, &auth)) 904ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian return -errno; 905b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss *magic = auth.magic; 906b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss return 0; 907b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss} 908b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 9098696e71db2d79eb318c00abde625d7b61d6800a1Jon Smirlint drmAuthMagic(int fd, drm_magic_t magic) 910b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss{ 911b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss drm_auth_t auth; 912b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 913b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss auth.magic = magic; 9148b9ab108ec1f2ba2b503f713769c4946849b3cb2Keith Packard if (drmIoctl(fd, DRM_IOCTL_AUTH_MAGIC, &auth)) 915ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian return -errno; 916b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss return 0; 917b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss} 918b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 919d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca/** 920d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * Specifies a range of memory that is available for mapping by a 921d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * non-root process. 922d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 923d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param fd file descriptor. 924d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param offset usually the physical address. The actual meaning depends of 925d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * the \p type parameter. See below. 926d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param size of the memory in bytes. 927d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param type type of the memory to be mapped. 928d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param flags combination of several flags to modify the function actions. 929d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param handle will be set to a value that may be used as the offset 930d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * parameter for mmap(). 931d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 932d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \return zero on success or a negative value on error. 933d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 934d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \par Mapping the frame buffer 935d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * For the frame buffer 936d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * - \p offset will be the physical address of the start of the frame buffer, 937d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * - \p size will be the size of the frame buffer in bytes, and 938d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * - \p type will be DRM_FRAME_BUFFER. 939d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 940d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \par 941d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * The area mapped will be uncached. If MTRR support is available in the 942d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * kernel, the frame buffer area will be set to write combining. 943d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 944d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \par Mapping the MMIO register area 945d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * For the MMIO register area, 946d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * - \p offset will be the physical address of the start of the register area, 947d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * - \p size will be the size of the register area bytes, and 948d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * - \p type will be DRM_REGISTERS. 949d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \par 950d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * The area mapped will be uncached. 951d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 952d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \par Mapping the SAREA 953d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * For the SAREA, 954d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * - \p offset will be ignored and should be set to zero, 955d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * - \p size will be the desired size of the SAREA in bytes, 956d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * - \p type will be DRM_SHM. 957d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 958d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \par 959d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * A shared memory area of the requested size will be created and locked in 960d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * kernel memory. This area may be mapped into client-space by using the handle 961d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * returned. 962d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 963d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \note May only be called by root. 964d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 965d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \internal 966d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * This function is a wrapper around the DRM_IOCTL_ADD_MAP ioctl, passing 967d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * the arguments in a drm_map structure. 968d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca */ 96922e41ef08338ae6dd59acbe6d4d8e50d83672816Adam Jacksonint drmAddMap(int fd, drm_handle_t offset, drmSize size, drmMapType type, 97022e41ef08338ae6dd59acbe6d4d8e50d83672816Adam Jackson drmMapFlags flags, drm_handle_t *handle) 971b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss{ 972b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss drm_map_t map; 973b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 974b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss map.offset = offset; 975b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss map.size = size; 976b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss map.handle = 0; 977b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss map.type = type; 978b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss map.flags = flags; 9798b9ab108ec1f2ba2b503f713769c4946849b3cb2Keith Packard if (drmIoctl(fd, DRM_IOCTL_ADD_MAP, &map)) 980ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian return -errno; 981ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian if (handle) 982ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian *handle = (drm_handle_t)map.handle; 983b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss return 0; 984b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss} 985b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 9868696e71db2d79eb318c00abde625d7b61d6800a1Jon Smirlint drmRmMap(int fd, drm_handle_t handle) 98774e19a40187ac3b5907922e5dc01418135a5794bKevin E Martin{ 98874e19a40187ac3b5907922e5dc01418135a5794bKevin E Martin drm_map_t map; 98974e19a40187ac3b5907922e5dc01418135a5794bKevin E Martin 99074e19a40187ac3b5907922e5dc01418135a5794bKevin E Martin map.handle = (void *)handle; 99174e19a40187ac3b5907922e5dc01418135a5794bKevin E Martin 9928b9ab108ec1f2ba2b503f713769c4946849b3cb2Keith Packard if(drmIoctl(fd, DRM_IOCTL_RM_MAP, &map)) 993ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian return -errno; 99474e19a40187ac3b5907922e5dc01418135a5794bKevin E Martin return 0; 99574e19a40187ac3b5907922e5dc01418135a5794bKevin E Martin} 99674e19a40187ac3b5907922e5dc01418135a5794bKevin E Martin 997d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca/** 998d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * Make buffers available for DMA transfers. 999d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1000d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param fd file descriptor. 1001d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param count number of buffers. 1002d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param size size of each buffer. 1003d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param flags buffer allocation flags. 1004d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param agp_offset offset in the AGP aperture 1005d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1006d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \return number of buffers allocated, negative on error. 1007d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1008d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \internal 1009d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * This function is a wrapper around DRM_IOCTL_ADD_BUFS ioctl. 1010d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1011d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \sa drm_buf_desc. 1012d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca */ 1013ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmannint drmAddBufs(int fd, int count, int size, drmBufDescFlags flags, 1014ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann int agp_offset) 1015b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss{ 1016b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss drm_buf_desc_t request; 1017360475376c5a597caf4a981c934a6b0d783fa94dGareth Hughes 1018b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss request.count = count; 1019b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss request.size = size; 1020b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss request.low_mark = 0; 1021b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss request.high_mark = 0; 1022b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss request.flags = flags; 1023ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann request.agp_start = agp_offset; 1024360475376c5a597caf4a981c934a6b0d783fa94dGareth Hughes 10258b9ab108ec1f2ba2b503f713769c4946849b3cb2Keith Packard if (drmIoctl(fd, DRM_IOCTL_ADD_BUFS, &request)) 1026ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian return -errno; 1027b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss return request.count; 1028b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss} 1029b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 1030b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Straussint drmMarkBufs(int fd, double low, double high) 1031b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss{ 1032b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss drm_buf_info_t info; 1033b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss int i; 1034b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 1035b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss info.count = 0; 1036b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss info.list = NULL; 1037b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 10388b9ab108ec1f2ba2b503f713769c4946849b3cb2Keith Packard if (drmIoctl(fd, DRM_IOCTL_INFO_BUFS, &info)) 1039ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian return -EINVAL; 1040b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 1041ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian if (!info.count) 1042ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian return -EINVAL; 1043360475376c5a597caf4a981c934a6b0d783fa94dGareth Hughes 1044b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss if (!(info.list = drmMalloc(info.count * sizeof(*info.list)))) 1045b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss return -ENOMEM; 1046360475376c5a597caf4a981c934a6b0d783fa94dGareth Hughes 10478b9ab108ec1f2ba2b503f713769c4946849b3cb2Keith Packard if (drmIoctl(fd, DRM_IOCTL_INFO_BUFS, &info)) { 1048b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss int retval = -errno; 1049b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss drmFree(info.list); 1050b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss return retval; 1051b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss } 1052360475376c5a597caf4a981c934a6b0d783fa94dGareth Hughes 1053b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss for (i = 0; i < info.count; i++) { 1054b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss info.list[i].low_mark = low * info.list[i].count; 1055b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss info.list[i].high_mark = high * info.list[i].count; 10568b9ab108ec1f2ba2b503f713769c4946849b3cb2Keith Packard if (drmIoctl(fd, DRM_IOCTL_MARK_BUFS, &info.list[i])) { 1057b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss int retval = -errno; 1058b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss drmFree(info.list); 1059b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss return retval; 1060b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss } 1061b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss } 1062b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss drmFree(info.list); 1063360475376c5a597caf4a981c934a6b0d783fa94dGareth Hughes 1064b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss return 0; 1065b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss} 1066b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 1067d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca/** 1068d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * Free buffers. 1069d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1070d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param fd file descriptor. 1071d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param count number of buffers to free. 1072d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param list list of buffers to be freed. 1073d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1074d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \return zero on success, or a negative value on failure. 1075d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1076d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \note This function is primarily used for debugging. 1077d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1078d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \internal 1079d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * This function is a wrapper around the DRM_IOCTL_FREE_BUFS ioctl, passing 1080d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * the arguments in a drm_buf_free structure. 1081d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca */ 1082b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Straussint drmFreeBufs(int fd, int count, int *list) 1083b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss{ 1084b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss drm_buf_free_t request; 1085b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 1086b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss request.count = count; 1087b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss request.list = list; 10888b9ab108ec1f2ba2b503f713769c4946849b3cb2Keith Packard if (drmIoctl(fd, DRM_IOCTL_FREE_BUFS, &request)) 1089ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian return -errno; 1090b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss return 0; 1091b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss} 1092b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 1093d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca 1094d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca/** 1095d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * Close the device. 1096d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1097d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param fd file descriptor. 1098d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1099d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \internal 1100d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * This function closes the file descriptor. 1101d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca */ 1102b6a28bfe98f2c89cfb91079bd3c7b63fb0144eb1Daryll Straussint drmClose(int fd) 1103b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss{ 1104b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss unsigned long key = drmGetKeyFromFd(fd); 1105b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss drmHashEntry *entry = drmGetEntry(fd); 1106b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 1107b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss drmHashDestroy(entry->tagTable); 1108b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss entry->fd = 0; 1109b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss entry->f = NULL; 1110b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss entry->tagTable = NULL; 1111b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 1112b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss drmHashDelete(drmHashTable, key); 1113b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss drmFree(entry); 1114b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 1115b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss return close(fd); 1116b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss} 1117b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 1118d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca 1119d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca/** 1120d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * Map a region of memory. 1121d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1122d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param fd file descriptor. 1123d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param handle handle returned by drmAddMap(). 1124d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param size size in bytes. Must match the size used by drmAddMap(). 1125d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param address will contain the user-space virtual address where the mapping 1126d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * begins. 1127d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1128d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \return zero on success, or a negative value on failure. 1129d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1130d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \internal 1131d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * This function is a wrapper for mmap(). 1132d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca */ 113322e41ef08338ae6dd59acbe6d4d8e50d83672816Adam Jacksonint drmMap(int fd, drm_handle_t handle, drmSize size, drmAddressPtr address) 1134b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss{ 1135c7558d8fa4df805b7f7ff3d631432eadac9b8a1cAlan Hourihane static unsigned long pagesize_mask = 0; 1136c7558d8fa4df805b7f7ff3d631432eadac9b8a1cAlan Hourihane 1137ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian if (fd < 0) 1138ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian return -EINVAL; 1139c7558d8fa4df805b7f7ff3d631432eadac9b8a1cAlan Hourihane 1140c7558d8fa4df805b7f7ff3d631432eadac9b8a1cAlan Hourihane if (!pagesize_mask) 1141c7558d8fa4df805b7f7ff3d631432eadac9b8a1cAlan Hourihane pagesize_mask = getpagesize() - 1; 1142c7558d8fa4df805b7f7ff3d631432eadac9b8a1cAlan Hourihane 1143c7558d8fa4df805b7f7ff3d631432eadac9b8a1cAlan Hourihane size = (size + pagesize_mask) & ~pagesize_mask; 1144c7558d8fa4df805b7f7ff3d631432eadac9b8a1cAlan Hourihane 1145b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss *address = mmap(0, size, PROT_READ|PROT_WRITE, MAP_SHARED, fd, handle); 1146ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian if (*address == MAP_FAILED) 1147ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian return -errno; 1148b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss return 0; 1149b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss} 1150b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 1151d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca 1152d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca/** 1153d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * Unmap mappings obtained with drmMap(). 1154d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1155d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param address address as given by drmMap(). 1156d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param size size in bytes. Must match the size used by drmMap(). 1157d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1158d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \return zero on success, or a negative value on failure. 1159d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1160d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \internal 116122e41ef08338ae6dd59acbe6d4d8e50d83672816Adam Jackson * This function is a wrapper for munmap(). 1162d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca */ 1163b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Straussint drmUnmap(drmAddress address, drmSize size) 1164b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss{ 1165b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss return munmap(address, size); 1166b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss} 1167b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 1168b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll StraussdrmBufInfoPtr drmGetBufInfo(int fd) 1169b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss{ 1170b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss drm_buf_info_t info; 1171b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss drmBufInfoPtr retval; 1172b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss int i; 1173b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 1174b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss info.count = 0; 1175b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss info.list = NULL; 1176b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 11778b9ab108ec1f2ba2b503f713769c4946849b3cb2Keith Packard if (drmIoctl(fd, DRM_IOCTL_INFO_BUFS, &info)) 1178ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian return NULL; 1179b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 1180b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss if (info.count) { 1181b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss if (!(info.list = drmMalloc(info.count * sizeof(*info.list)))) 1182b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss return NULL; 1183360475376c5a597caf4a981c934a6b0d783fa94dGareth Hughes 11848b9ab108ec1f2ba2b503f713769c4946849b3cb2Keith Packard if (drmIoctl(fd, DRM_IOCTL_INFO_BUFS, &info)) { 1185b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss drmFree(info.list); 1186b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss return NULL; 1187b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss } 118822e41ef08338ae6dd59acbe6d4d8e50d83672816Adam Jackson 1189b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss retval = drmMalloc(sizeof(*retval)); 1190b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss retval->count = info.count; 1191b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss retval->list = drmMalloc(info.count * sizeof(*retval->list)); 1192b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss for (i = 0; i < info.count; i++) { 1193b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss retval->list[i].count = info.list[i].count; 1194b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss retval->list[i].size = info.list[i].size; 1195b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss retval->list[i].low_mark = info.list[i].low_mark; 1196b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss retval->list[i].high_mark = info.list[i].high_mark; 1197b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss } 1198b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss drmFree(info.list); 1199b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss return retval; 1200b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss } 1201b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss return NULL; 1202b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss} 1203b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 1204d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca/** 1205d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * Map all DMA buffers into client-virtual space. 1206d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1207d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param fd file descriptor. 1208d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1209d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \return a pointer to a ::drmBufMap structure. 1210d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1211d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \note The client may not use these buffers until obtaining buffer indices 1212d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * with drmDMA(). 1213d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1214d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \internal 1215d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * This function calls the DRM_IOCTL_MAP_BUFS ioctl and copies the returned 1216d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * information about the buffers in a drm_buf_map structure into the 1217d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * client-visible data structures. 1218d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca */ 1219b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll StraussdrmBufMapPtr drmMapBufs(int fd) 1220b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss{ 1221b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss drm_buf_map_t bufs; 1222b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss drmBufMapPtr retval; 1223b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss int i; 1224360475376c5a597caf4a981c934a6b0d783fa94dGareth Hughes 1225b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss bufs.count = 0; 1226b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss bufs.list = NULL; 12278696e71db2d79eb318c00abde625d7b61d6800a1Jon Smirl bufs.virtual = NULL; 12288b9ab108ec1f2ba2b503f713769c4946849b3cb2Keith Packard if (drmIoctl(fd, DRM_IOCTL_MAP_BUFS, &bufs)) 1229ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian return NULL; 1230b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 1231ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian if (!bufs.count) 1232ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian return NULL; 12338696e71db2d79eb318c00abde625d7b61d6800a1Jon Smirl 1234b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss if (!(bufs.list = drmMalloc(bufs.count * sizeof(*bufs.list)))) 1235b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss return NULL; 1236b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 12378b9ab108ec1f2ba2b503f713769c4946849b3cb2Keith Packard if (drmIoctl(fd, DRM_IOCTL_MAP_BUFS, &bufs)) { 1238b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss drmFree(bufs.list); 1239b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss return NULL; 1240b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss } 124122e41ef08338ae6dd59acbe6d4d8e50d83672816Adam Jackson 1242b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss retval = drmMalloc(sizeof(*retval)); 1243b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss retval->count = bufs.count; 1244b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss retval->list = drmMalloc(bufs.count * sizeof(*retval->list)); 1245b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss for (i = 0; i < bufs.count; i++) { 1246b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss retval->list[i].idx = bufs.list[i].idx; 1247b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss retval->list[i].total = bufs.list[i].total; 1248b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss retval->list[i].used = 0; 1249b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss retval->list[i].address = bufs.list[i].address; 1250b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss } 12518696e71db2d79eb318c00abde625d7b61d6800a1Jon Smirl 12528696e71db2d79eb318c00abde625d7b61d6800a1Jon Smirl drmFree(bufs.list); 12538696e71db2d79eb318c00abde625d7b61d6800a1Jon Smirl 1254b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss return retval; 1255b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss} 1256b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 1257d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca 1258d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca/** 1259d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * Unmap buffers allocated with drmMapBufs(). 1260d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1261d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \return zero on success, or negative value on failure. 1262d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1263d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \internal 12648696e71db2d79eb318c00abde625d7b61d6800a1Jon Smirl * Calls munmap() for every buffer stored in \p bufs and frees the 12658696e71db2d79eb318c00abde625d7b61d6800a1Jon Smirl * memory allocated by drmMapBufs(). 1266d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca */ 1267b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Straussint drmUnmapBufs(drmBufMapPtr bufs) 1268b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss{ 1269b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss int i; 1270360475376c5a597caf4a981c934a6b0d783fa94dGareth Hughes 1271b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss for (i = 0; i < bufs->count; i++) { 1272b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss munmap(bufs->list[i].address, bufs->list[i].total); 1273b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss } 12748696e71db2d79eb318c00abde625d7b61d6800a1Jon Smirl 12758696e71db2d79eb318c00abde625d7b61d6800a1Jon Smirl drmFree(bufs->list); 12768696e71db2d79eb318c00abde625d7b61d6800a1Jon Smirl drmFree(bufs); 12778696e71db2d79eb318c00abde625d7b61d6800a1Jon Smirl 1278b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss return 0; 1279b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss} 1280b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 1281d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca 1282360475376c5a597caf4a981c934a6b0d783fa94dGareth Hughes#define DRM_DMA_RETRY 16 1283360475376c5a597caf4a981c934a6b0d783fa94dGareth Hughes 1284d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca/** 1285d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * Reserve DMA buffers. 1286d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1287d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param fd file descriptor. 1288d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param request 1289d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1290d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \return zero on success, or a negative value on failure. 1291d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1292d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \internal 1293d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * Assemble the arguments into a drm_dma structure and keeps issuing the 1294d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * DRM_IOCTL_DMA ioctl until success or until maximum number of retries. 1295d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca */ 1296b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Straussint drmDMA(int fd, drmDMAReqPtr request) 1297b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss{ 1298b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss drm_dma_t dma; 1299360475376c5a597caf4a981c934a6b0d783fa94dGareth Hughes int ret, i = 0; 1300b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 1301b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss dma.context = request->context; 1302b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss dma.send_count = request->send_count; 1303b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss dma.send_indices = request->send_list; 1304b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss dma.send_sizes = request->send_sizes; 1305b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss dma.flags = request->flags; 1306b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss dma.request_count = request->request_count; 1307b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss dma.request_size = request->request_size; 1308b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss dma.request_indices = request->request_list; 1309b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss dma.request_sizes = request->request_sizes; 13108696e71db2d79eb318c00abde625d7b61d6800a1Jon Smirl dma.granted_count = 0; 1311360475376c5a597caf4a981c934a6b0d783fa94dGareth Hughes 1312360475376c5a597caf4a981c934a6b0d783fa94dGareth Hughes do { 1313360475376c5a597caf4a981c934a6b0d783fa94dGareth Hughes ret = ioctl( fd, DRM_IOCTL_DMA, &dma ); 1314360475376c5a597caf4a981c934a6b0d783fa94dGareth Hughes } while ( ret && errno == EAGAIN && i++ < DRM_DMA_RETRY ); 1315360475376c5a597caf4a981c934a6b0d783fa94dGareth Hughes 1316360475376c5a597caf4a981c934a6b0d783fa94dGareth Hughes if ( ret == 0 ) { 1317360475376c5a597caf4a981c934a6b0d783fa94dGareth Hughes request->granted_count = dma.granted_count; 1318360475376c5a597caf4a981c934a6b0d783fa94dGareth Hughes return 0; 1319360475376c5a597caf4a981c934a6b0d783fa94dGareth Hughes } else { 1320360475376c5a597caf4a981c934a6b0d783fa94dGareth Hughes return -errno; 1321360475376c5a597caf4a981c934a6b0d783fa94dGareth Hughes } 1322b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss} 1323b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 1324d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca 1325d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca/** 1326d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * Obtain heavyweight hardware lock. 1327d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1328d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param fd file descriptor. 1329d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param context context. 1330d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param flags flags that determine the sate of the hardware when the function 1331d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * returns. 1332d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1333d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \return always zero. 1334d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1335d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \internal 1336d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * This function translates the arguments into a drm_lock structure and issue 1337d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * the DRM_IOCTL_LOCK ioctl until the lock is successfully acquired. 1338d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca */ 13398696e71db2d79eb318c00abde625d7b61d6800a1Jon Smirlint drmGetLock(int fd, drm_context_t context, drmLockFlags flags) 1340b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss{ 1341b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss drm_lock_t lock; 1342b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 1343b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss lock.context = context; 1344b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss lock.flags = 0; 1345b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss if (flags & DRM_LOCK_READY) lock.flags |= _DRM_LOCK_READY; 1346b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss if (flags & DRM_LOCK_QUIESCENT) lock.flags |= _DRM_LOCK_QUIESCENT; 1347b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss if (flags & DRM_LOCK_FLUSH) lock.flags |= _DRM_LOCK_FLUSH; 1348b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss if (flags & DRM_LOCK_FLUSH_ALL) lock.flags |= _DRM_LOCK_FLUSH_ALL; 1349b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss if (flags & DRM_HALT_ALL_QUEUES) lock.flags |= _DRM_HALT_ALL_QUEUES; 1350b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss if (flags & DRM_HALT_CUR_QUEUES) lock.flags |= _DRM_HALT_CUR_QUEUES; 1351360475376c5a597caf4a981c934a6b0d783fa94dGareth Hughes 13528b9ab108ec1f2ba2b503f713769c4946849b3cb2Keith Packard while (drmIoctl(fd, DRM_IOCTL_LOCK, &lock)) 1353b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss ; 1354b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss return 0; 1355b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss} 1356b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 1357d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca/** 1358d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * Release the hardware lock. 1359d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1360d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param fd file descriptor. 1361d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param context context. 1362d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1363d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \return zero on success, or a negative value on failure. 1364d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1365d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \internal 1366d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * This function is a wrapper around the DRM_IOCTL_UNLOCK ioctl, passing the 1367d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * argument in a drm_lock structure. 1368d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca */ 13698696e71db2d79eb318c00abde625d7b61d6800a1Jon Smirlint drmUnlock(int fd, drm_context_t context) 1370b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss{ 1371b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss drm_lock_t lock; 1372b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 1373b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss lock.context = context; 1374b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss lock.flags = 0; 13758b9ab108ec1f2ba2b503f713769c4946849b3cb2Keith Packard return drmIoctl(fd, DRM_IOCTL_UNLOCK, &lock); 1376b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss} 1377b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 137822e41ef08338ae6dd59acbe6d4d8e50d83672816Adam Jacksondrm_context_t *drmGetReservedContextList(int fd, int *count) 1379b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss{ 1380b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss drm_ctx_res_t res; 1381b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss drm_ctx_t *list; 13828696e71db2d79eb318c00abde625d7b61d6800a1Jon Smirl drm_context_t * retval; 1383b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss int i; 1384b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 1385b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss res.count = 0; 1386b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss res.contexts = NULL; 13878b9ab108ec1f2ba2b503f713769c4946849b3cb2Keith Packard if (drmIoctl(fd, DRM_IOCTL_RES_CTX, &res)) 1388ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian return NULL; 1389b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 1390ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian if (!res.count) 1391ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian return NULL; 1392b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 1393ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian if (!(list = drmMalloc(res.count * sizeof(*list)))) 1394ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian return NULL; 1395b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss if (!(retval = drmMalloc(res.count * sizeof(*retval)))) { 1396b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss drmFree(list); 1397b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss return NULL; 1398b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss } 1399b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 1400b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss res.contexts = list; 14018b9ab108ec1f2ba2b503f713769c4946849b3cb2Keith Packard if (drmIoctl(fd, DRM_IOCTL_RES_CTX, &res)) 1402ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian return NULL; 1403b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 1404ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian for (i = 0; i < res.count; i++) 1405ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian retval[i] = list[i].handle; 1406b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss drmFree(list); 1407b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 1408b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss *count = res.count; 1409b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss return retval; 1410b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss} 1411b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 141222e41ef08338ae6dd59acbe6d4d8e50d83672816Adam Jacksonvoid drmFreeReservedContextList(drm_context_t *pt) 1413b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss{ 1414b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss drmFree(pt); 1415b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss} 1416b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 1417d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca/** 1418d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * Create context. 1419d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1420d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * Used by the X server during GLXContext initialization. This causes 1421d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * per-context kernel-level resources to be allocated. 1422d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1423d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param fd file descriptor. 1424d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param handle is set on success. To be used by the client when requesting DMA 1425d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * dispatch with drmDMA(). 1426d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1427d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \return zero on success, or a negative value on failure. 1428d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1429d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \note May only be called by root. 1430d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1431d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \internal 1432d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * This function is a wrapper around the DRM_IOCTL_ADD_CTX ioctl, passing the 1433d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * argument in a drm_ctx structure. 1434d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca */ 143522e41ef08338ae6dd59acbe6d4d8e50d83672816Adam Jacksonint drmCreateContext(int fd, drm_context_t *handle) 1436b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss{ 1437b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss drm_ctx_t ctx; 1438b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 1439b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss ctx.flags = 0; /* Modified with functions below */ 14408b9ab108ec1f2ba2b503f713769c4946849b3cb2Keith Packard if (drmIoctl(fd, DRM_IOCTL_ADD_CTX, &ctx)) 1441ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian return -errno; 1442b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss *handle = ctx.handle; 1443b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss return 0; 1444b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss} 1445b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 14468696e71db2d79eb318c00abde625d7b61d6800a1Jon Smirlint drmSwitchToContext(int fd, drm_context_t context) 1447b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss{ 1448b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss drm_ctx_t ctx; 1449b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 1450b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss ctx.handle = context; 14518b9ab108ec1f2ba2b503f713769c4946849b3cb2Keith Packard if (drmIoctl(fd, DRM_IOCTL_SWITCH_CTX, &ctx)) 1452ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian return -errno; 1453b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss return 0; 1454b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss} 1455b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 14568696e71db2d79eb318c00abde625d7b61d6800a1Jon Smirlint drmSetContextFlags(int fd, drm_context_t context, drm_context_tFlags flags) 1457b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss{ 1458b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss drm_ctx_t ctx; 1459b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 146022e41ef08338ae6dd59acbe6d4d8e50d83672816Adam Jackson /* 146122e41ef08338ae6dd59acbe6d4d8e50d83672816Adam Jackson * Context preserving means that no context switches are done between DMA 146222e41ef08338ae6dd59acbe6d4d8e50d83672816Adam Jackson * buffers from one context and the next. This is suitable for use in the 146322e41ef08338ae6dd59acbe6d4d8e50d83672816Adam Jackson * X server (which promises to maintain hardware context), or in the 146422e41ef08338ae6dd59acbe6d4d8e50d83672816Adam Jackson * client-side library when buffers are swapped on behalf of two threads. 146522e41ef08338ae6dd59acbe6d4d8e50d83672816Adam Jackson */ 1466b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss ctx.handle = context; 1467b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss ctx.flags = 0; 1468ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian if (flags & DRM_CONTEXT_PRESERVED) 1469ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian ctx.flags |= _DRM_CONTEXT_PRESERVED; 1470ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian if (flags & DRM_CONTEXT_2DONLY) 1471ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian ctx.flags |= _DRM_CONTEXT_2DONLY; 14728b9ab108ec1f2ba2b503f713769c4946849b3cb2Keith Packard if (drmIoctl(fd, DRM_IOCTL_MOD_CTX, &ctx)) 1473ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian return -errno; 1474b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss return 0; 1475b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss} 1476b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 147722e41ef08338ae6dd59acbe6d4d8e50d83672816Adam Jacksonint drmGetContextFlags(int fd, drm_context_t context, 147822e41ef08338ae6dd59acbe6d4d8e50d83672816Adam Jackson drm_context_tFlagsPtr flags) 1479b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss{ 1480b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss drm_ctx_t ctx; 1481b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 1482b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss ctx.handle = context; 14838b9ab108ec1f2ba2b503f713769c4946849b3cb2Keith Packard if (drmIoctl(fd, DRM_IOCTL_GET_CTX, &ctx)) 1484ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian return -errno; 1485b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss *flags = 0; 1486ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian if (ctx.flags & _DRM_CONTEXT_PRESERVED) 1487ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian *flags |= DRM_CONTEXT_PRESERVED; 1488ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian if (ctx.flags & _DRM_CONTEXT_2DONLY) 1489ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian *flags |= DRM_CONTEXT_2DONLY; 1490b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss return 0; 1491b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss} 1492360475376c5a597caf4a981c934a6b0d783fa94dGareth Hughes 1493d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca/** 1494d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * Destroy context. 1495d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1496d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * Free any kernel-level resources allocated with drmCreateContext() associated 1497d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * with the context. 1498d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1499d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param fd file descriptor. 1500d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param handle handle given by drmCreateContext(). 1501d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1502d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \return zero on success, or a negative value on failure. 1503d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1504d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \note May only be called by root. 1505d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1506d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \internal 1507d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * This function is a wrapper around the DRM_IOCTL_RM_CTX ioctl, passing the 1508d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * argument in a drm_ctx structure. 1509d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca */ 15108696e71db2d79eb318c00abde625d7b61d6800a1Jon Smirlint drmDestroyContext(int fd, drm_context_t handle) 1511b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss{ 1512b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss drm_ctx_t ctx; 1513b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss ctx.handle = handle; 15148b9ab108ec1f2ba2b503f713769c4946849b3cb2Keith Packard if (drmIoctl(fd, DRM_IOCTL_RM_CTX, &ctx)) 1515ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian return -errno; 1516b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss return 0; 1517b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss} 1518b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 151922e41ef08338ae6dd59acbe6d4d8e50d83672816Adam Jacksonint drmCreateDrawable(int fd, drm_drawable_t *handle) 1520b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss{ 1521b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss drm_draw_t draw; 15228b9ab108ec1f2ba2b503f713769c4946849b3cb2Keith Packard if (drmIoctl(fd, DRM_IOCTL_ADD_DRAW, &draw)) 1523ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian return -errno; 1524b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss *handle = draw.handle; 1525b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss return 0; 1526b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss} 1527b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 15288696e71db2d79eb318c00abde625d7b61d6800a1Jon Smirlint drmDestroyDrawable(int fd, drm_drawable_t handle) 1529b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss{ 1530b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss drm_draw_t draw; 1531b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss draw.handle = handle; 15328b9ab108ec1f2ba2b503f713769c4946849b3cb2Keith Packard if (drmIoctl(fd, DRM_IOCTL_RM_DRAW, &draw)) 1533ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian return -errno; 1534b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss return 0; 1535b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss} 1536b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 15379810ec2737de6aa81e764225f580e4ea39de437aMichel Dänzerint drmUpdateDrawableInfo(int fd, drm_drawable_t handle, 15389810ec2737de6aa81e764225f580e4ea39de437aMichel Dänzer drm_drawable_info_type_t type, unsigned int num, 15399810ec2737de6aa81e764225f580e4ea39de437aMichel Dänzer void *data) 15409810ec2737de6aa81e764225f580e4ea39de437aMichel Dänzer{ 15419810ec2737de6aa81e764225f580e4ea39de437aMichel Dänzer drm_update_draw_t update; 15429810ec2737de6aa81e764225f580e4ea39de437aMichel Dänzer 15439810ec2737de6aa81e764225f580e4ea39de437aMichel Dänzer update.handle = handle; 15449810ec2737de6aa81e764225f580e4ea39de437aMichel Dänzer update.type = type; 15459810ec2737de6aa81e764225f580e4ea39de437aMichel Dänzer update.num = num; 15469810ec2737de6aa81e764225f580e4ea39de437aMichel Dänzer update.data = (unsigned long long)(unsigned long)data; 15479810ec2737de6aa81e764225f580e4ea39de437aMichel Dänzer 15488b9ab108ec1f2ba2b503f713769c4946849b3cb2Keith Packard if (drmIoctl(fd, DRM_IOCTL_UPDATE_DRAW, &update)) 1549ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian return -errno; 15509810ec2737de6aa81e764225f580e4ea39de437aMichel Dänzer 15519810ec2737de6aa81e764225f580e4ea39de437aMichel Dänzer return 0; 15529810ec2737de6aa81e764225f580e4ea39de437aMichel Dänzer} 15539810ec2737de6aa81e764225f580e4ea39de437aMichel Dänzer 1554d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca/** 1555d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * Acquire the AGP device. 1556d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1557d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * Must be called before any of the other AGP related calls. 1558d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1559d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param fd file descriptor. 1560d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1561d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \return zero on success, or a negative value on failure. 1562d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1563d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \internal 1564d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * This function is a wrapper around the DRM_IOCTL_AGP_ACQUIRE ioctl. 1565d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca */ 1566ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmannint drmAgpAcquire(int fd) 1567ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann{ 15688b9ab108ec1f2ba2b503f713769c4946849b3cb2Keith Packard if (drmIoctl(fd, DRM_IOCTL_AGP_ACQUIRE, NULL)) 1569ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian return -errno; 1570ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann return 0; 1571ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann} 1572ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann 1573d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca 1574d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca/** 1575d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * Release the AGP device. 1576d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1577d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param fd file descriptor. 1578d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1579d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \return zero on success, or a negative value on failure. 1580d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1581d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \internal 1582d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * This function is a wrapper around the DRM_IOCTL_AGP_RELEASE ioctl. 1583d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca */ 1584ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmannint drmAgpRelease(int fd) 1585ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann{ 15868b9ab108ec1f2ba2b503f713769c4946849b3cb2Keith Packard if (drmIoctl(fd, DRM_IOCTL_AGP_RELEASE, NULL)) 1587ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian return -errno; 1588ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann return 0; 1589ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann} 1590ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann 1591d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca 1592d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca/** 1593d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * Set the AGP mode. 1594d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1595d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param fd file descriptor. 1596d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param mode AGP mode. 1597d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1598d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \return zero on success, or a negative value on failure. 1599d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1600d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \internal 1601d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * This function is a wrapper around the DRM_IOCTL_AGP_ENABLE ioctl, passing the 1602d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * argument in a drm_agp_mode structure. 1603d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca */ 1604ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmannint drmAgpEnable(int fd, unsigned long mode) 1605ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann{ 1606ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann drm_agp_mode_t m; 1607ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann 1608ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann m.mode = mode; 16098b9ab108ec1f2ba2b503f713769c4946849b3cb2Keith Packard if (drmIoctl(fd, DRM_IOCTL_AGP_ENABLE, &m)) 1610ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian return -errno; 1611ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann return 0; 1612ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann} 1613ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann 1614d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca 1615d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca/** 1616d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * Allocate a chunk of AGP memory. 1617d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1618d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param fd file descriptor. 1619d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param size requested memory size in bytes. Will be rounded to page boundary. 1620d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param type type of memory to allocate. 1621d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param address if not zero, will be set to the physical address of the 1622d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * allocated memory. 1623d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param handle on success will be set to a handle of the allocated memory. 1624d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1625d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \return zero on success, or a negative value on failure. 1626d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1627d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \internal 1628d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * This function is a wrapper around the DRM_IOCTL_AGP_ALLOC ioctl, passing the 1629d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * arguments in a drm_agp_buffer structure. 1630d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca */ 1631ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmannint drmAgpAlloc(int fd, unsigned long size, unsigned long type, 16327ede209ce0cbbc65f79d02e2cc43cfcb3abb6e99Dave Airlie unsigned long *address, drm_handle_t *handle) 1633ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann{ 1634ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann drm_agp_buffer_t b; 1635b0a928557c91fec527f41ae8b2441174889bf32cAlan Hourihane 1636b0a928557c91fec527f41ae8b2441174889bf32cAlan Hourihane *handle = DRM_AGP_NO_HANDLE; 1637ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann b.size = size; 1638ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann b.handle = 0; 1639ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann b.type = type; 16408b9ab108ec1f2ba2b503f713769c4946849b3cb2Keith Packard if (drmIoctl(fd, DRM_IOCTL_AGP_ALLOC, &b)) 1641ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian return -errno; 1642ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian if (address != 0UL) 1643ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian *address = b.physical; 1644ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann *handle = b.handle; 1645ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann return 0; 1646ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann} 1647ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann 1648d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca 1649d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca/** 1650d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * Free a chunk of AGP memory. 1651d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1652d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param fd file descriptor. 1653d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param handle handle to the allocated memory, as given by drmAgpAllocate(). 1654d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1655d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \return zero on success, or a negative value on failure. 1656d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1657d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \internal 1658d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * This function is a wrapper around the DRM_IOCTL_AGP_FREE ioctl, passing the 1659d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * argument in a drm_agp_buffer structure. 1660d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca */ 16617ede209ce0cbbc65f79d02e2cc43cfcb3abb6e99Dave Airlieint drmAgpFree(int fd, drm_handle_t handle) 1662ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann{ 1663ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann drm_agp_buffer_t b; 1664ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann 1665ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann b.size = 0; 1666ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann b.handle = handle; 16678b9ab108ec1f2ba2b503f713769c4946849b3cb2Keith Packard if (drmIoctl(fd, DRM_IOCTL_AGP_FREE, &b)) 1668ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian return -errno; 1669ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann return 0; 1670ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann} 1671ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann 1672d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca 1673d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca/** 1674d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * Bind a chunk of AGP memory. 1675d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1676d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param fd file descriptor. 1677d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param handle handle to the allocated memory, as given by drmAgpAllocate(). 1678d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param offset offset in bytes. It will round to page boundary. 1679d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1680d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \return zero on success, or a negative value on failure. 1681d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1682d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \internal 1683d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * This function is a wrapper around the DRM_IOCTL_AGP_BIND ioctl, passing the 1684d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * argument in a drm_agp_binding structure. 1685d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca */ 16867ede209ce0cbbc65f79d02e2cc43cfcb3abb6e99Dave Airlieint drmAgpBind(int fd, drm_handle_t handle, unsigned long offset) 1687ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann{ 1688ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann drm_agp_binding_t b; 1689ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann 1690ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann b.handle = handle; 1691ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann b.offset = offset; 16928b9ab108ec1f2ba2b503f713769c4946849b3cb2Keith Packard if (drmIoctl(fd, DRM_IOCTL_AGP_BIND, &b)) 1693ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian return -errno; 1694ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann return 0; 1695ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann} 1696ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann 1697d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca 1698d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca/** 1699d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * Unbind a chunk of AGP memory. 1700d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1701d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param fd file descriptor. 1702d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param handle handle to the allocated memory, as given by drmAgpAllocate(). 1703d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1704d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \return zero on success, or a negative value on failure. 1705d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1706d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \internal 1707d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * This function is a wrapper around the DRM_IOCTL_AGP_UNBIND ioctl, passing 1708d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * the argument in a drm_agp_binding structure. 1709d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca */ 17107ede209ce0cbbc65f79d02e2cc43cfcb3abb6e99Dave Airlieint drmAgpUnbind(int fd, drm_handle_t handle) 1711ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann{ 1712ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann drm_agp_binding_t b; 1713ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann 1714ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann b.handle = handle; 1715ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann b.offset = 0; 17168b9ab108ec1f2ba2b503f713769c4946849b3cb2Keith Packard if (drmIoctl(fd, DRM_IOCTL_AGP_UNBIND, &b)) 1717ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian return -errno; 1718ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann return 0; 1719ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann} 1720ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann 1721d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca 1722d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca/** 1723d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * Get AGP driver major version number. 1724d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1725d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param fd file descriptor. 1726d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1727d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \return major version number on success, or a negative value on failure.. 1728d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1729d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \internal 1730d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * This function is a wrapper around the DRM_IOCTL_AGP_INFO ioctl, getting the 1731d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * necessary information in a drm_agp_info structure. 1732d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca */ 1733ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmannint drmAgpVersionMajor(int fd) 1734ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann{ 1735ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann drm_agp_info_t i; 1736ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann 17378b9ab108ec1f2ba2b503f713769c4946849b3cb2Keith Packard if (drmIoctl(fd, DRM_IOCTL_AGP_INFO, &i)) 1738ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian return -errno; 1739ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann return i.agp_version_major; 1740ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann} 1741ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann 1742d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca 1743d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca/** 1744d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * Get AGP driver minor version number. 1745d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1746d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param fd file descriptor. 1747d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1748d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \return minor version number on success, or a negative value on failure. 1749d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1750d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \internal 1751d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * This function is a wrapper around the DRM_IOCTL_AGP_INFO ioctl, getting the 1752d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * necessary information in a drm_agp_info structure. 1753d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca */ 1754ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmannint drmAgpVersionMinor(int fd) 1755ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann{ 1756ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann drm_agp_info_t i; 1757ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann 17588b9ab108ec1f2ba2b503f713769c4946849b3cb2Keith Packard if (drmIoctl(fd, DRM_IOCTL_AGP_INFO, &i)) 1759ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian return -errno; 1760ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann return i.agp_version_minor; 1761ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann} 1762ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann 1763d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca 1764d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca/** 1765d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * Get AGP mode. 1766d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1767d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param fd file descriptor. 1768d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1769d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \return mode on success, or zero on failure. 1770d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1771d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \internal 1772d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * This function is a wrapper around the DRM_IOCTL_AGP_INFO ioctl, getting the 1773d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * necessary information in a drm_agp_info structure. 1774d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca */ 1775ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmannunsigned long drmAgpGetMode(int fd) 1776ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann{ 1777ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann drm_agp_info_t i; 1778ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann 17798b9ab108ec1f2ba2b503f713769c4946849b3cb2Keith Packard if (drmIoctl(fd, DRM_IOCTL_AGP_INFO, &i)) 1780ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian return 0; 1781ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann return i.mode; 1782ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann} 1783ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann 1784d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca 1785d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca/** 1786d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * Get AGP aperture base. 1787d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1788d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param fd file descriptor. 1789d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1790d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \return aperture base on success, zero on failure. 1791d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1792d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \internal 1793d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * This function is a wrapper around the DRM_IOCTL_AGP_INFO ioctl, getting the 1794d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * necessary information in a drm_agp_info structure. 1795d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca */ 1796ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmannunsigned long drmAgpBase(int fd) 1797ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann{ 1798ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann drm_agp_info_t i; 1799ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann 18008b9ab108ec1f2ba2b503f713769c4946849b3cb2Keith Packard if (drmIoctl(fd, DRM_IOCTL_AGP_INFO, &i)) 1801ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian return 0; 1802ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann return i.aperture_base; 1803ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann} 1804ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann 1805d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca 1806d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca/** 1807d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * Get AGP aperture size. 1808d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1809d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param fd file descriptor. 1810d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1811d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \return aperture size on success, zero on failure. 1812d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1813d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \internal 1814d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * This function is a wrapper around the DRM_IOCTL_AGP_INFO ioctl, getting the 1815d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * necessary information in a drm_agp_info structure. 1816d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca */ 1817ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmannunsigned long drmAgpSize(int fd) 1818ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann{ 1819ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann drm_agp_info_t i; 1820ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann 18218b9ab108ec1f2ba2b503f713769c4946849b3cb2Keith Packard if (drmIoctl(fd, DRM_IOCTL_AGP_INFO, &i)) 1822ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian return 0; 1823ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann return i.aperture_size; 1824ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann} 1825ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann 1826d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca 1827d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca/** 1828d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * Get used AGP memory. 1829d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1830d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param fd file descriptor. 1831d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1832d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \return memory used on success, or zero on failure. 1833d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1834d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \internal 1835d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * This function is a wrapper around the DRM_IOCTL_AGP_INFO ioctl, getting the 1836d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * necessary information in a drm_agp_info structure. 1837d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca */ 1838ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmannunsigned long drmAgpMemoryUsed(int fd) 1839ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann{ 1840ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann drm_agp_info_t i; 1841ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann 18428b9ab108ec1f2ba2b503f713769c4946849b3cb2Keith Packard if (drmIoctl(fd, DRM_IOCTL_AGP_INFO, &i)) 1843ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian return 0; 1844ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann return i.memory_used; 1845ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann} 1846ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann 1847d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca 1848d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca/** 1849d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * Get available AGP memory. 1850d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1851d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param fd file descriptor. 1852d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1853d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \return memory available on success, or zero on failure. 1854d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1855d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \internal 1856d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * This function is a wrapper around the DRM_IOCTL_AGP_INFO ioctl, getting the 1857d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * necessary information in a drm_agp_info structure. 1858d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca */ 1859ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmannunsigned long drmAgpMemoryAvail(int fd) 1860ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann{ 1861ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann drm_agp_info_t i; 1862ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann 18638b9ab108ec1f2ba2b503f713769c4946849b3cb2Keith Packard if (drmIoctl(fd, DRM_IOCTL_AGP_INFO, &i)) 1864ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian return 0; 1865ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann return i.memory_allowed; 1866ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann} 1867ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann 1868d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca 1869d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca/** 1870d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * Get hardware vendor ID. 1871d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1872d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param fd file descriptor. 1873d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1874d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \return vendor ID on success, or zero on failure. 1875d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1876d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \internal 1877d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * This function is a wrapper around the DRM_IOCTL_AGP_INFO ioctl, getting the 1878d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * necessary information in a drm_agp_info structure. 1879d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca */ 1880ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmannunsigned int drmAgpVendorId(int fd) 1881ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann{ 1882ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann drm_agp_info_t i; 1883ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann 18848b9ab108ec1f2ba2b503f713769c4946849b3cb2Keith Packard if (drmIoctl(fd, DRM_IOCTL_AGP_INFO, &i)) 1885ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian return 0; 1886ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann return i.id_vendor; 1887ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann} 1888ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann 1889d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca 1890d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca/** 1891d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * Get hardware device ID. 1892d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1893d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param fd file descriptor. 1894d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1895d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \return zero on success, or zero on failure. 1896d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1897d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \internal 1898d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * This function is a wrapper around the DRM_IOCTL_AGP_INFO ioctl, getting the 1899d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * necessary information in a drm_agp_info structure. 1900d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca */ 1901ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmannunsigned int drmAgpDeviceId(int fd) 1902ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann{ 1903ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann drm_agp_info_t i; 1904ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann 19058b9ab108ec1f2ba2b503f713769c4946849b3cb2Keith Packard if (drmIoctl(fd, DRM_IOCTL_AGP_INFO, &i)) 1906ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian return 0; 1907ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann return i.id_device; 1908ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann} 1909ba1b1ae3806490cce16a9c8957b52cd74967f463Jeff Hartmann 19107ede209ce0cbbc65f79d02e2cc43cfcb3abb6e99Dave Airlieint drmScatterGatherAlloc(int fd, unsigned long size, drm_handle_t *handle) 19115d6ddbca26d695561fb1d08d798a0cc254b805e7Kevin E Martin{ 19125d6ddbca26d695561fb1d08d798a0cc254b805e7Kevin E Martin drm_scatter_gather_t sg; 19135d6ddbca26d695561fb1d08d798a0cc254b805e7Kevin E Martin 19145d6ddbca26d695561fb1d08d798a0cc254b805e7Kevin E Martin *handle = 0; 19155d6ddbca26d695561fb1d08d798a0cc254b805e7Kevin E Martin sg.size = size; 19165d6ddbca26d695561fb1d08d798a0cc254b805e7Kevin E Martin sg.handle = 0; 19178b9ab108ec1f2ba2b503f713769c4946849b3cb2Keith Packard if (drmIoctl(fd, DRM_IOCTL_SG_ALLOC, &sg)) 1918ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian return -errno; 19195d6ddbca26d695561fb1d08d798a0cc254b805e7Kevin E Martin *handle = sg.handle; 19205d6ddbca26d695561fb1d08d798a0cc254b805e7Kevin E Martin return 0; 19215d6ddbca26d695561fb1d08d798a0cc254b805e7Kevin E Martin} 19225d6ddbca26d695561fb1d08d798a0cc254b805e7Kevin E Martin 19237ede209ce0cbbc65f79d02e2cc43cfcb3abb6e99Dave Airlieint drmScatterGatherFree(int fd, drm_handle_t handle) 19245d6ddbca26d695561fb1d08d798a0cc254b805e7Kevin E Martin{ 19255d6ddbca26d695561fb1d08d798a0cc254b805e7Kevin E Martin drm_scatter_gather_t sg; 19265d6ddbca26d695561fb1d08d798a0cc254b805e7Kevin E Martin 19275d6ddbca26d695561fb1d08d798a0cc254b805e7Kevin E Martin sg.size = 0; 19285d6ddbca26d695561fb1d08d798a0cc254b805e7Kevin E Martin sg.handle = handle; 19298b9ab108ec1f2ba2b503f713769c4946849b3cb2Keith Packard if (drmIoctl(fd, DRM_IOCTL_SG_FREE, &sg)) 1930ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian return -errno; 19315d6ddbca26d695561fb1d08d798a0cc254b805e7Kevin E Martin return 0; 19325d6ddbca26d695561fb1d08d798a0cc254b805e7Kevin E Martin} 19335d6ddbca26d695561fb1d08d798a0cc254b805e7Kevin E Martin 1934d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca/** 1935d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * Wait for VBLANK. 1936d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1937d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param fd file descriptor. 1938d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param vbl pointer to a drmVBlank structure. 1939d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1940d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \return zero on success, or a negative value on failure. 1941d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 1942d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \internal 1943d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * This function is a wrapper around the DRM_IOCTL_WAIT_VBLANK ioctl. 1944d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca */ 194555acd0d5a64a2ee6b0cecc75872fbf8c4bb42a0cMichel Daenzerint drmWaitVBlank(int fd, drmVBlankPtr vbl) 194655acd0d5a64a2ee6b0cecc75872fbf8c4bb42a0cMichel Daenzer{ 1947f4f76a6894b40abd77f0ffbf52972127608b9bcaJesse Barnes struct timespec timeout, cur; 194855acd0d5a64a2ee6b0cecc75872fbf8c4bb42a0cMichel Daenzer int ret; 194955acd0d5a64a2ee6b0cecc75872fbf8c4bb42a0cMichel Daenzer 1950f4f76a6894b40abd77f0ffbf52972127608b9bcaJesse Barnes ret = clock_gettime(CLOCK_MONOTONIC, &timeout); 1951f4f76a6894b40abd77f0ffbf52972127608b9bcaJesse Barnes if (ret < 0) { 1952f4f76a6894b40abd77f0ffbf52972127608b9bcaJesse Barnes fprintf(stderr, "clock_gettime failed: %s\n", strerror(ret)); 1953f4f76a6894b40abd77f0ffbf52972127608b9bcaJesse Barnes goto out; 1954f4f76a6894b40abd77f0ffbf52972127608b9bcaJesse Barnes } 1955f4f76a6894b40abd77f0ffbf52972127608b9bcaJesse Barnes timeout.tv_sec++; 1956f4f76a6894b40abd77f0ffbf52972127608b9bcaJesse Barnes 195755acd0d5a64a2ee6b0cecc75872fbf8c4bb42a0cMichel Daenzer do { 1958f4f76a6894b40abd77f0ffbf52972127608b9bcaJesse Barnes ret = ioctl(fd, DRM_IOCTL_WAIT_VBLANK, vbl); 1959c7d471b6ae936127311a816a8d15b4565746af48Michel Daenzer vbl->request.type &= ~DRM_VBLANK_RELATIVE; 1960ca37077fb78b69a00500827f1db12b70affa1514Jesse Barnes if (ret && errno == EINTR) { 1961ca37077fb78b69a00500827f1db12b70affa1514Jesse Barnes clock_gettime(CLOCK_MONOTONIC, &cur); 1962ca37077fb78b69a00500827f1db12b70affa1514Jesse Barnes /* Timeout after 1s */ 1963ca37077fb78b69a00500827f1db12b70affa1514Jesse Barnes if (cur.tv_sec > timeout.tv_sec + 1 || 1964ca37077fb78b69a00500827f1db12b70affa1514Jesse Barnes (cur.tv_sec == timeout.tv_sec && cur.tv_nsec >= 1965ca37077fb78b69a00500827f1db12b70affa1514Jesse Barnes timeout.tv_nsec)) { 1966ca37077fb78b69a00500827f1db12b70affa1514Jesse Barnes errno = EBUSY; 1967ca37077fb78b69a00500827f1db12b70affa1514Jesse Barnes ret = -1; 1968ca37077fb78b69a00500827f1db12b70affa1514Jesse Barnes break; 1969ca37077fb78b69a00500827f1db12b70affa1514Jesse Barnes } 1970f4f76a6894b40abd77f0ffbf52972127608b9bcaJesse Barnes } 197155acd0d5a64a2ee6b0cecc75872fbf8c4bb42a0cMichel Daenzer } while (ret && errno == EINTR); 197255acd0d5a64a2ee6b0cecc75872fbf8c4bb42a0cMichel Daenzer 1973f4f76a6894b40abd77f0ffbf52972127608b9bcaJesse Barnesout: 197455acd0d5a64a2ee6b0cecc75872fbf8c4bb42a0cMichel Daenzer return ret; 197555acd0d5a64a2ee6b0cecc75872fbf8c4bb42a0cMichel Daenzer} 197655acd0d5a64a2ee6b0cecc75872fbf8c4bb42a0cMichel Daenzer 1977b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Straussint drmError(int err, const char *label) 1978b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss{ 1979b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss switch (err) { 1980ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian case DRM_ERR_NO_DEVICE: 1981ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian fprintf(stderr, "%s: no device\n", label); 1982ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian break; 1983ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian case DRM_ERR_NO_ACCESS: 1984ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian fprintf(stderr, "%s: no access\n", label); 1985ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian break; 1986ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian case DRM_ERR_NOT_ROOT: 1987ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian fprintf(stderr, "%s: not root\n", label); 1988ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian break; 1989ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian case DRM_ERR_INVALID: 1990ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian fprintf(stderr, "%s: invalid args\n", label); 1991ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian break; 1992b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss default: 1993ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian if (err < 0) 1994ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian err = -err; 1995b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss fprintf( stderr, "%s: error %d (%s)\n", label, err, strerror(err) ); 1996b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss break; 1997b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss } 1998b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 1999b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss return 1; 2000b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss} 2001b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 2002d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca/** 2003d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * Install IRQ handler. 2004d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 2005d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param fd file descriptor. 2006d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param irq IRQ number. 2007d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 2008d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \return zero on success, or a negative value on failure. 2009d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 2010d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \internal 2011d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * This function is a wrapper around the DRM_IOCTL_CONTROL ioctl, passing the 2012d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * argument in a drm_control structure. 2013d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca */ 2014b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Straussint drmCtlInstHandler(int fd, int irq) 2015b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss{ 2016b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss drm_control_t ctl; 2017b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 2018b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss ctl.func = DRM_INST_HANDLER; 2019b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss ctl.irq = irq; 20208b9ab108ec1f2ba2b503f713769c4946849b3cb2Keith Packard if (drmIoctl(fd, DRM_IOCTL_CONTROL, &ctl)) 2021ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian return -errno; 2022b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss return 0; 2023b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss} 2024b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 2025d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca 2026d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca/** 2027d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * Uninstall IRQ handler. 2028d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 2029d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param fd file descriptor. 2030d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 2031d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \return zero on success, or a negative value on failure. 2032d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 2033d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \internal 2034d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * This function is a wrapper around the DRM_IOCTL_CONTROL ioctl, passing the 2035d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * argument in a drm_control structure. 2036d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca */ 2037b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Straussint drmCtlUninstHandler(int fd) 2038b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss{ 2039b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss drm_control_t ctl; 2040b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 2041b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss ctl.func = DRM_UNINST_HANDLER; 2042b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss ctl.irq = 0; 20438b9ab108ec1f2ba2b503f713769c4946849b3cb2Keith Packard if (drmIoctl(fd, DRM_IOCTL_CONTROL, &ctl)) 2044ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian return -errno; 2045b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss return 0; 2046b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss} 2047b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 2048b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Straussint drmFinish(int fd, int context, drmLockFlags flags) 2049b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss{ 2050b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss drm_lock_t lock; 2051b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 2052b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss lock.context = context; 2053b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss lock.flags = 0; 2054b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss if (flags & DRM_LOCK_READY) lock.flags |= _DRM_LOCK_READY; 2055b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss if (flags & DRM_LOCK_QUIESCENT) lock.flags |= _DRM_LOCK_QUIESCENT; 2056b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss if (flags & DRM_LOCK_FLUSH) lock.flags |= _DRM_LOCK_FLUSH; 2057b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss if (flags & DRM_LOCK_FLUSH_ALL) lock.flags |= _DRM_LOCK_FLUSH_ALL; 2058b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss if (flags & DRM_HALT_ALL_QUEUES) lock.flags |= _DRM_HALT_ALL_QUEUES; 2059b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss if (flags & DRM_HALT_CUR_QUEUES) lock.flags |= _DRM_HALT_CUR_QUEUES; 20608b9ab108ec1f2ba2b503f713769c4946849b3cb2Keith Packard if (drmIoctl(fd, DRM_IOCTL_FINISH, &lock)) 2061ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian return -errno; 2062b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss return 0; 2063b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss} 2064b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 2065d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca/** 2066d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * Get IRQ from bus ID. 2067d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 2068d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param fd file descriptor. 2069d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param busnum bus number. 2070d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param devnum device number. 2071d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param funcnum function number. 2072d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 2073d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \return IRQ number on success, or a negative value on failure. 2074d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 2075d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \internal 2076d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * This function is a wrapper around the DRM_IOCTL_IRQ_BUSID ioctl, passing the 2077d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * arguments in a drm_irq_busid structure. 2078d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca */ 2079b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Straussint drmGetInterruptFromBusID(int fd, int busnum, int devnum, int funcnum) 2080b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss{ 2081b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss drm_irq_busid_t p; 2082b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 2083b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss p.busnum = busnum; 2084b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss p.devnum = devnum; 2085b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss p.funcnum = funcnum; 20868b9ab108ec1f2ba2b503f713769c4946849b3cb2Keith Packard if (drmIoctl(fd, DRM_IOCTL_IRQ_BUSID, &p)) 2087ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian return -errno; 2088b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss return p.irq; 2089b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss} 2090b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 20918696e71db2d79eb318c00abde625d7b61d6800a1Jon Smirlint drmAddContextTag(int fd, drm_context_t context, void *tag) 2092b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss{ 2093b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss drmHashEntry *entry = drmGetEntry(fd); 2094b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 2095b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss if (drmHashInsert(entry->tagTable, context, tag)) { 2096b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss drmHashDelete(entry->tagTable, context); 2097b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss drmHashInsert(entry->tagTable, context, tag); 2098b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss } 2099b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss return 0; 2100b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss} 2101b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 21028696e71db2d79eb318c00abde625d7b61d6800a1Jon Smirlint drmDelContextTag(int fd, drm_context_t context) 2103b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss{ 2104b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss drmHashEntry *entry = drmGetEntry(fd); 2105b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 2106b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss return drmHashDelete(entry->tagTable, context); 2107b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss} 2108b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 21098696e71db2d79eb318c00abde625d7b61d6800a1Jon Smirlvoid *drmGetContextTag(int fd, drm_context_t context) 2110b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss{ 2111b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss drmHashEntry *entry = drmGetEntry(fd); 2112b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss void *value; 2113360475376c5a597caf4a981c934a6b0d783fa94dGareth Hughes 2114ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian if (drmHashLookup(entry->tagTable, context, &value)) 2115ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian return NULL; 2116b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 2117b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss return value; 2118b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss} 2119b3a5766992019fc5f44cc9afd01b2617b76f47aDaryll Strauss 212022e41ef08338ae6dd59acbe6d4d8e50d83672816Adam Jacksonint drmAddContextPrivateMapping(int fd, drm_context_t ctx_id, 212122e41ef08338ae6dd59acbe6d4d8e50d83672816Adam Jackson drm_handle_t handle) 212274e19a40187ac3b5907922e5dc01418135a5794bKevin E Martin{ 212374e19a40187ac3b5907922e5dc01418135a5794bKevin E Martin drm_ctx_priv_map_t map; 212474e19a40187ac3b5907922e5dc01418135a5794bKevin E Martin 212574e19a40187ac3b5907922e5dc01418135a5794bKevin E Martin map.ctx_id = ctx_id; 212674e19a40187ac3b5907922e5dc01418135a5794bKevin E Martin map.handle = (void *)handle; 212774e19a40187ac3b5907922e5dc01418135a5794bKevin E Martin 21288b9ab108ec1f2ba2b503f713769c4946849b3cb2Keith Packard if (drmIoctl(fd, DRM_IOCTL_SET_SAREA_CTX, &map)) 2129ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian return -errno; 213074e19a40187ac3b5907922e5dc01418135a5794bKevin E Martin return 0; 213174e19a40187ac3b5907922e5dc01418135a5794bKevin E Martin} 213274e19a40187ac3b5907922e5dc01418135a5794bKevin E Martin 213322e41ef08338ae6dd59acbe6d4d8e50d83672816Adam Jacksonint drmGetContextPrivateMapping(int fd, drm_context_t ctx_id, 213422e41ef08338ae6dd59acbe6d4d8e50d83672816Adam Jackson drm_handle_t *handle) 213574e19a40187ac3b5907922e5dc01418135a5794bKevin E Martin{ 213674e19a40187ac3b5907922e5dc01418135a5794bKevin E Martin drm_ctx_priv_map_t map; 213774e19a40187ac3b5907922e5dc01418135a5794bKevin E Martin 213874e19a40187ac3b5907922e5dc01418135a5794bKevin E Martin map.ctx_id = ctx_id; 213974e19a40187ac3b5907922e5dc01418135a5794bKevin E Martin 21408b9ab108ec1f2ba2b503f713769c4946849b3cb2Keith Packard if (drmIoctl(fd, DRM_IOCTL_GET_SAREA_CTX, &map)) 2141ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian return -errno; 2142ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian if (handle) 2143ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian *handle = (drm_handle_t)map.handle; 214474e19a40187ac3b5907922e5dc01418135a5794bKevin E Martin 214574e19a40187ac3b5907922e5dc01418135a5794bKevin E Martin return 0; 214674e19a40187ac3b5907922e5dc01418135a5794bKevin E Martin} 214774e19a40187ac3b5907922e5dc01418135a5794bKevin E Martin 21488696e71db2d79eb318c00abde625d7b61d6800a1Jon Smirlint drmGetMap(int fd, int idx, drm_handle_t *offset, drmSize *size, 21498696e71db2d79eb318c00abde625d7b61d6800a1Jon Smirl drmMapType *type, drmMapFlags *flags, drm_handle_t *handle, 215088dbee54ed400a3fd5594fab506518c171167805Rik Faith int *mtrr) 215188dbee54ed400a3fd5594fab506518c171167805Rik Faith{ 215288dbee54ed400a3fd5594fab506518c171167805Rik Faith drm_map_t map; 215388dbee54ed400a3fd5594fab506518c171167805Rik Faith 215488dbee54ed400a3fd5594fab506518c171167805Rik Faith map.offset = idx; 21558b9ab108ec1f2ba2b503f713769c4946849b3cb2Keith Packard if (drmIoctl(fd, DRM_IOCTL_GET_MAP, &map)) 2156ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian return -errno; 215788dbee54ed400a3fd5594fab506518c171167805Rik Faith *offset = map.offset; 215888dbee54ed400a3fd5594fab506518c171167805Rik Faith *size = map.size; 215988dbee54ed400a3fd5594fab506518c171167805Rik Faith *type = map.type; 216088dbee54ed400a3fd5594fab506518c171167805Rik Faith *flags = map.flags; 216188dbee54ed400a3fd5594fab506518c171167805Rik Faith *handle = (unsigned long)map.handle; 216288dbee54ed400a3fd5594fab506518c171167805Rik Faith *mtrr = map.mtrr; 216388dbee54ed400a3fd5594fab506518c171167805Rik Faith return 0; 216488dbee54ed400a3fd5594fab506518c171167805Rik Faith} 216588dbee54ed400a3fd5594fab506518c171167805Rik Faith 216688dbee54ed400a3fd5594fab506518c171167805Rik Faithint drmGetClient(int fd, int idx, int *auth, int *pid, int *uid, 216788dbee54ed400a3fd5594fab506518c171167805Rik Faith unsigned long *magic, unsigned long *iocs) 216888dbee54ed400a3fd5594fab506518c171167805Rik Faith{ 216988dbee54ed400a3fd5594fab506518c171167805Rik Faith drm_client_t client; 217088dbee54ed400a3fd5594fab506518c171167805Rik Faith 217188dbee54ed400a3fd5594fab506518c171167805Rik Faith client.idx = idx; 21728b9ab108ec1f2ba2b503f713769c4946849b3cb2Keith Packard if (drmIoctl(fd, DRM_IOCTL_GET_CLIENT, &client)) 2173ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian return -errno; 217488dbee54ed400a3fd5594fab506518c171167805Rik Faith *auth = client.auth; 217588dbee54ed400a3fd5594fab506518c171167805Rik Faith *pid = client.pid; 217688dbee54ed400a3fd5594fab506518c171167805Rik Faith *uid = client.uid; 217788dbee54ed400a3fd5594fab506518c171167805Rik Faith *magic = client.magic; 217888dbee54ed400a3fd5594fab506518c171167805Rik Faith *iocs = client.iocs; 217988dbee54ed400a3fd5594fab506518c171167805Rik Faith return 0; 218088dbee54ed400a3fd5594fab506518c171167805Rik Faith} 218188dbee54ed400a3fd5594fab506518c171167805Rik Faith 218288dbee54ed400a3fd5594fab506518c171167805Rik Faithint drmGetStats(int fd, drmStatsT *stats) 218388dbee54ed400a3fd5594fab506518c171167805Rik Faith{ 218488dbee54ed400a3fd5594fab506518c171167805Rik Faith drm_stats_t s; 218588dbee54ed400a3fd5594fab506518c171167805Rik Faith int i; 218688dbee54ed400a3fd5594fab506518c171167805Rik Faith 21878b9ab108ec1f2ba2b503f713769c4946849b3cb2Keith Packard if (drmIoctl(fd, DRM_IOCTL_GET_STATS, &s)) 2188ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian return -errno; 218988dbee54ed400a3fd5594fab506518c171167805Rik Faith 219088dbee54ed400a3fd5594fab506518c171167805Rik Faith stats->count = 0; 219188dbee54ed400a3fd5594fab506518c171167805Rik Faith memset(stats, 0, sizeof(*stats)); 219288dbee54ed400a3fd5594fab506518c171167805Rik Faith if (s.count > sizeof(stats->data)/sizeof(stats->data[0])) 219388dbee54ed400a3fd5594fab506518c171167805Rik Faith return -1; 219488dbee54ed400a3fd5594fab506518c171167805Rik Faith 219588dbee54ed400a3fd5594fab506518c171167805Rik Faith#define SET_VALUE \ 219688dbee54ed400a3fd5594fab506518c171167805Rik Faith stats->data[i].long_format = "%-20.20s"; \ 219788dbee54ed400a3fd5594fab506518c171167805Rik Faith stats->data[i].rate_format = "%8.8s"; \ 219888dbee54ed400a3fd5594fab506518c171167805Rik Faith stats->data[i].isvalue = 1; \ 219988dbee54ed400a3fd5594fab506518c171167805Rik Faith stats->data[i].verbose = 0 220088dbee54ed400a3fd5594fab506518c171167805Rik Faith 220188dbee54ed400a3fd5594fab506518c171167805Rik Faith#define SET_COUNT \ 220288dbee54ed400a3fd5594fab506518c171167805Rik Faith stats->data[i].long_format = "%-20.20s"; \ 220388dbee54ed400a3fd5594fab506518c171167805Rik Faith stats->data[i].rate_format = "%5.5s"; \ 220488dbee54ed400a3fd5594fab506518c171167805Rik Faith stats->data[i].isvalue = 0; \ 220588dbee54ed400a3fd5594fab506518c171167805Rik Faith stats->data[i].mult_names = "kgm"; \ 220688dbee54ed400a3fd5594fab506518c171167805Rik Faith stats->data[i].mult = 1000; \ 220788dbee54ed400a3fd5594fab506518c171167805Rik Faith stats->data[i].verbose = 0 220888dbee54ed400a3fd5594fab506518c171167805Rik Faith 220988dbee54ed400a3fd5594fab506518c171167805Rik Faith#define SET_BYTE \ 221088dbee54ed400a3fd5594fab506518c171167805Rik Faith stats->data[i].long_format = "%-20.20s"; \ 221188dbee54ed400a3fd5594fab506518c171167805Rik Faith stats->data[i].rate_format = "%5.5s"; \ 221288dbee54ed400a3fd5594fab506518c171167805Rik Faith stats->data[i].isvalue = 0; \ 221388dbee54ed400a3fd5594fab506518c171167805Rik Faith stats->data[i].mult_names = "KGM"; \ 221488dbee54ed400a3fd5594fab506518c171167805Rik Faith stats->data[i].mult = 1024; \ 221588dbee54ed400a3fd5594fab506518c171167805Rik Faith stats->data[i].verbose = 0 221688dbee54ed400a3fd5594fab506518c171167805Rik Faith 221788dbee54ed400a3fd5594fab506518c171167805Rik Faith 221888dbee54ed400a3fd5594fab506518c171167805Rik Faith stats->count = s.count; 221988dbee54ed400a3fd5594fab506518c171167805Rik Faith for (i = 0; i < s.count; i++) { 222088dbee54ed400a3fd5594fab506518c171167805Rik Faith stats->data[i].value = s.data[i].value; 222188dbee54ed400a3fd5594fab506518c171167805Rik Faith switch (s.data[i].type) { 222288dbee54ed400a3fd5594fab506518c171167805Rik Faith case _DRM_STAT_LOCK: 222388dbee54ed400a3fd5594fab506518c171167805Rik Faith stats->data[i].long_name = "Lock"; 222488dbee54ed400a3fd5594fab506518c171167805Rik Faith stats->data[i].rate_name = "Lock"; 222588dbee54ed400a3fd5594fab506518c171167805Rik Faith SET_VALUE; 222688dbee54ed400a3fd5594fab506518c171167805Rik Faith break; 222788dbee54ed400a3fd5594fab506518c171167805Rik Faith case _DRM_STAT_OPENS: 222888dbee54ed400a3fd5594fab506518c171167805Rik Faith stats->data[i].long_name = "Opens"; 222988dbee54ed400a3fd5594fab506518c171167805Rik Faith stats->data[i].rate_name = "O"; 223088dbee54ed400a3fd5594fab506518c171167805Rik Faith SET_COUNT; 223188dbee54ed400a3fd5594fab506518c171167805Rik Faith stats->data[i].verbose = 1; 223288dbee54ed400a3fd5594fab506518c171167805Rik Faith break; 223388dbee54ed400a3fd5594fab506518c171167805Rik Faith case _DRM_STAT_CLOSES: 223488dbee54ed400a3fd5594fab506518c171167805Rik Faith stats->data[i].long_name = "Closes"; 223588dbee54ed400a3fd5594fab506518c171167805Rik Faith stats->data[i].rate_name = "Lock"; 223688dbee54ed400a3fd5594fab506518c171167805Rik Faith SET_COUNT; 223788dbee54ed400a3fd5594fab506518c171167805Rik Faith stats->data[i].verbose = 1; 223888dbee54ed400a3fd5594fab506518c171167805Rik Faith break; 223988dbee54ed400a3fd5594fab506518c171167805Rik Faith case _DRM_STAT_IOCTLS: 224088dbee54ed400a3fd5594fab506518c171167805Rik Faith stats->data[i].long_name = "Ioctls"; 224188dbee54ed400a3fd5594fab506518c171167805Rik Faith stats->data[i].rate_name = "Ioc/s"; 224288dbee54ed400a3fd5594fab506518c171167805Rik Faith SET_COUNT; 224388dbee54ed400a3fd5594fab506518c171167805Rik Faith break; 224488dbee54ed400a3fd5594fab506518c171167805Rik Faith case _DRM_STAT_LOCKS: 224588dbee54ed400a3fd5594fab506518c171167805Rik Faith stats->data[i].long_name = "Locks"; 224688dbee54ed400a3fd5594fab506518c171167805Rik Faith stats->data[i].rate_name = "Lck/s"; 224788dbee54ed400a3fd5594fab506518c171167805Rik Faith SET_COUNT; 224888dbee54ed400a3fd5594fab506518c171167805Rik Faith break; 224988dbee54ed400a3fd5594fab506518c171167805Rik Faith case _DRM_STAT_UNLOCKS: 225088dbee54ed400a3fd5594fab506518c171167805Rik Faith stats->data[i].long_name = "Unlocks"; 225188dbee54ed400a3fd5594fab506518c171167805Rik Faith stats->data[i].rate_name = "Unl/s"; 225288dbee54ed400a3fd5594fab506518c171167805Rik Faith SET_COUNT; 225388dbee54ed400a3fd5594fab506518c171167805Rik Faith break; 225488dbee54ed400a3fd5594fab506518c171167805Rik Faith case _DRM_STAT_IRQ: 225588dbee54ed400a3fd5594fab506518c171167805Rik Faith stats->data[i].long_name = "IRQs"; 225688dbee54ed400a3fd5594fab506518c171167805Rik Faith stats->data[i].rate_name = "IRQ/s"; 225788dbee54ed400a3fd5594fab506518c171167805Rik Faith SET_COUNT; 225888dbee54ed400a3fd5594fab506518c171167805Rik Faith break; 225988dbee54ed400a3fd5594fab506518c171167805Rik Faith case _DRM_STAT_PRIMARY: 226088dbee54ed400a3fd5594fab506518c171167805Rik Faith stats->data[i].long_name = "Primary Bytes"; 226188dbee54ed400a3fd5594fab506518c171167805Rik Faith stats->data[i].rate_name = "PB/s"; 226288dbee54ed400a3fd5594fab506518c171167805Rik Faith SET_BYTE; 226388dbee54ed400a3fd5594fab506518c171167805Rik Faith break; 226488dbee54ed400a3fd5594fab506518c171167805Rik Faith case _DRM_STAT_SECONDARY: 226588dbee54ed400a3fd5594fab506518c171167805Rik Faith stats->data[i].long_name = "Secondary Bytes"; 226688dbee54ed400a3fd5594fab506518c171167805Rik Faith stats->data[i].rate_name = "SB/s"; 226788dbee54ed400a3fd5594fab506518c171167805Rik Faith SET_BYTE; 226888dbee54ed400a3fd5594fab506518c171167805Rik Faith break; 226988dbee54ed400a3fd5594fab506518c171167805Rik Faith case _DRM_STAT_DMA: 227088dbee54ed400a3fd5594fab506518c171167805Rik Faith stats->data[i].long_name = "DMA"; 227188dbee54ed400a3fd5594fab506518c171167805Rik Faith stats->data[i].rate_name = "DMA/s"; 227288dbee54ed400a3fd5594fab506518c171167805Rik Faith SET_COUNT; 227388dbee54ed400a3fd5594fab506518c171167805Rik Faith break; 227488dbee54ed400a3fd5594fab506518c171167805Rik Faith case _DRM_STAT_SPECIAL: 227588dbee54ed400a3fd5594fab506518c171167805Rik Faith stats->data[i].long_name = "Special DMA"; 227688dbee54ed400a3fd5594fab506518c171167805Rik Faith stats->data[i].rate_name = "dma/s"; 227788dbee54ed400a3fd5594fab506518c171167805Rik Faith SET_COUNT; 227888dbee54ed400a3fd5594fab506518c171167805Rik Faith break; 227988dbee54ed400a3fd5594fab506518c171167805Rik Faith case _DRM_STAT_MISSED: 228088dbee54ed400a3fd5594fab506518c171167805Rik Faith stats->data[i].long_name = "Miss"; 228188dbee54ed400a3fd5594fab506518c171167805Rik Faith stats->data[i].rate_name = "Ms/s"; 228288dbee54ed400a3fd5594fab506518c171167805Rik Faith SET_COUNT; 228388dbee54ed400a3fd5594fab506518c171167805Rik Faith break; 228488dbee54ed400a3fd5594fab506518c171167805Rik Faith case _DRM_STAT_VALUE: 228588dbee54ed400a3fd5594fab506518c171167805Rik Faith stats->data[i].long_name = "Value"; 228688dbee54ed400a3fd5594fab506518c171167805Rik Faith stats->data[i].rate_name = "Value"; 228788dbee54ed400a3fd5594fab506518c171167805Rik Faith SET_VALUE; 228888dbee54ed400a3fd5594fab506518c171167805Rik Faith break; 228988dbee54ed400a3fd5594fab506518c171167805Rik Faith case _DRM_STAT_BYTE: 229088dbee54ed400a3fd5594fab506518c171167805Rik Faith stats->data[i].long_name = "Bytes"; 229188dbee54ed400a3fd5594fab506518c171167805Rik Faith stats->data[i].rate_name = "B/s"; 229288dbee54ed400a3fd5594fab506518c171167805Rik Faith SET_BYTE; 229388dbee54ed400a3fd5594fab506518c171167805Rik Faith break; 229488dbee54ed400a3fd5594fab506518c171167805Rik Faith case _DRM_STAT_COUNT: 229588dbee54ed400a3fd5594fab506518c171167805Rik Faith default: 229688dbee54ed400a3fd5594fab506518c171167805Rik Faith stats->data[i].long_name = "Count"; 229788dbee54ed400a3fd5594fab506518c171167805Rik Faith stats->data[i].rate_name = "Cnt/s"; 229888dbee54ed400a3fd5594fab506518c171167805Rik Faith SET_COUNT; 229988dbee54ed400a3fd5594fab506518c171167805Rik Faith break; 230088dbee54ed400a3fd5594fab506518c171167805Rik Faith } 230188dbee54ed400a3fd5594fab506518c171167805Rik Faith } 230288dbee54ed400a3fd5594fab506518c171167805Rik Faith return 0; 230388dbee54ed400a3fd5594fab506518c171167805Rik Faith} 230488dbee54ed400a3fd5594fab506518c171167805Rik Faith 2305d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca/** 230606cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt * Issue a set-version ioctl. 230706cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt * 230806cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt * \param fd file descriptor. 230906cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt * \param drmCommandIndex command index 231006cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt * \param data source pointer of the data to be read and written. 231106cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt * \param size size of the data to be read and written. 231206cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt * 231306cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt * \return zero on success, or a negative value on failure. 231406cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt * 231506cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt * \internal 231606cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt * It issues a read-write ioctl given by 231706cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt * \code DRM_COMMAND_BASE + drmCommandIndex \endcode. 231806cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt */ 231922e41ef08338ae6dd59acbe6d4d8e50d83672816Adam Jacksonint drmSetInterfaceVersion(int fd, drmSetVersion *version) 232006cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt{ 232106cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt int retcode = 0; 232206cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt drm_set_version_t sv; 232306cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt 232406cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt sv.drm_di_major = version->drm_di_major; 232506cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt sv.drm_di_minor = version->drm_di_minor; 232606cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt sv.drm_dd_major = version->drm_dd_major; 232706cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt sv.drm_dd_minor = version->drm_dd_minor; 232806cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt 23298b9ab108ec1f2ba2b503f713769c4946849b3cb2Keith Packard if (drmIoctl(fd, DRM_IOCTL_SET_VERSION, &sv)) { 233006cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt retcode = -errno; 233106cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt } 233206cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt 233306cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt version->drm_di_major = sv.drm_di_major; 233406cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt version->drm_di_minor = sv.drm_di_minor; 233506cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt version->drm_dd_major = sv.drm_dd_major; 233606cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt version->drm_dd_minor = sv.drm_dd_minor; 233706cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt 233806cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt return retcode; 233906cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt} 234006cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt 234106cb132e86dc4a04044c3c76725ba3037008ab34Eric Anholt/** 2342d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * Send a device-specific command. 2343d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 2344d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param fd file descriptor. 2345d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param drmCommandIndex command index 2346d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 2347d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \return zero on success, or a negative value on failure. 2348d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 2349d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \internal 2350d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * It issues a ioctl given by 2351d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \code DRM_COMMAND_BASE + drmCommandIndex \endcode. 2352d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca */ 23533903e5ac94c07cf31f0bc24eff5011ef8cc7afbaJens Owenint drmCommandNone(int fd, unsigned long drmCommandIndex) 23543903e5ac94c07cf31f0bc24eff5011ef8cc7afbaJens Owen{ 23553903e5ac94c07cf31f0bc24eff5011ef8cc7afbaJens Owen void *data = NULL; /* dummy */ 23563903e5ac94c07cf31f0bc24eff5011ef8cc7afbaJens Owen unsigned long request; 23573903e5ac94c07cf31f0bc24eff5011ef8cc7afbaJens Owen 23583903e5ac94c07cf31f0bc24eff5011ef8cc7afbaJens Owen request = DRM_IO( DRM_COMMAND_BASE + drmCommandIndex); 23593903e5ac94c07cf31f0bc24eff5011ef8cc7afbaJens Owen 23608b9ab108ec1f2ba2b503f713769c4946849b3cb2Keith Packard if (drmIoctl(fd, request, data)) { 23613903e5ac94c07cf31f0bc24eff5011ef8cc7afbaJens Owen return -errno; 23623903e5ac94c07cf31f0bc24eff5011ef8cc7afbaJens Owen } 23633903e5ac94c07cf31f0bc24eff5011ef8cc7afbaJens Owen return 0; 23643903e5ac94c07cf31f0bc24eff5011ef8cc7afbaJens Owen} 23653903e5ac94c07cf31f0bc24eff5011ef8cc7afbaJens Owen 2366d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca 2367d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca/** 2368d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * Send a device-specific read command. 2369d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 2370d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param fd file descriptor. 2371d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param drmCommandIndex command index 2372d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param data destination pointer of the data to be read. 2373d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param size size of the data to be read. 2374d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 2375d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \return zero on success, or a negative value on failure. 2376d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 2377d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \internal 2378d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * It issues a read ioctl given by 2379d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \code DRM_COMMAND_BASE + drmCommandIndex \endcode. 2380d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca */ 238122e41ef08338ae6dd59acbe6d4d8e50d83672816Adam Jacksonint drmCommandRead(int fd, unsigned long drmCommandIndex, void *data, 238222e41ef08338ae6dd59acbe6d4d8e50d83672816Adam Jackson unsigned long size) 23833903e5ac94c07cf31f0bc24eff5011ef8cc7afbaJens Owen{ 23843903e5ac94c07cf31f0bc24eff5011ef8cc7afbaJens Owen unsigned long request; 23853903e5ac94c07cf31f0bc24eff5011ef8cc7afbaJens Owen 238674ef13fd009b9e37956e4207d0a5ed92f4b5e39aAlan Hourihane request = DRM_IOC( DRM_IOC_READ, DRM_IOCTL_BASE, 238774ef13fd009b9e37956e4207d0a5ed92f4b5e39aAlan Hourihane DRM_COMMAND_BASE + drmCommandIndex, size); 23883903e5ac94c07cf31f0bc24eff5011ef8cc7afbaJens Owen 23898b9ab108ec1f2ba2b503f713769c4946849b3cb2Keith Packard if (drmIoctl(fd, request, data)) { 23903903e5ac94c07cf31f0bc24eff5011ef8cc7afbaJens Owen return -errno; 23913903e5ac94c07cf31f0bc24eff5011ef8cc7afbaJens Owen } 23923903e5ac94c07cf31f0bc24eff5011ef8cc7afbaJens Owen return 0; 23933903e5ac94c07cf31f0bc24eff5011ef8cc7afbaJens Owen} 23943903e5ac94c07cf31f0bc24eff5011ef8cc7afbaJens Owen 2395d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca 2396d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca/** 2397d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * Send a device-specific write command. 2398d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 2399d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param fd file descriptor. 2400d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param drmCommandIndex command index 2401d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param data source pointer of the data to be written. 2402d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param size size of the data to be written. 2403d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 2404d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \return zero on success, or a negative value on failure. 2405d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 2406d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \internal 2407d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * It issues a write ioctl given by 2408d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \code DRM_COMMAND_BASE + drmCommandIndex \endcode. 2409d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca */ 241022e41ef08338ae6dd59acbe6d4d8e50d83672816Adam Jacksonint drmCommandWrite(int fd, unsigned long drmCommandIndex, void *data, 241122e41ef08338ae6dd59acbe6d4d8e50d83672816Adam Jackson unsigned long size) 24123903e5ac94c07cf31f0bc24eff5011ef8cc7afbaJens Owen{ 24133903e5ac94c07cf31f0bc24eff5011ef8cc7afbaJens Owen unsigned long request; 24143903e5ac94c07cf31f0bc24eff5011ef8cc7afbaJens Owen 241574ef13fd009b9e37956e4207d0a5ed92f4b5e39aAlan Hourihane request = DRM_IOC( DRM_IOC_WRITE, DRM_IOCTL_BASE, 241674ef13fd009b9e37956e4207d0a5ed92f4b5e39aAlan Hourihane DRM_COMMAND_BASE + drmCommandIndex, size); 24173903e5ac94c07cf31f0bc24eff5011ef8cc7afbaJens Owen 24188b9ab108ec1f2ba2b503f713769c4946849b3cb2Keith Packard if (drmIoctl(fd, request, data)) { 24193903e5ac94c07cf31f0bc24eff5011ef8cc7afbaJens Owen return -errno; 24203903e5ac94c07cf31f0bc24eff5011ef8cc7afbaJens Owen } 24213903e5ac94c07cf31f0bc24eff5011ef8cc7afbaJens Owen return 0; 24223903e5ac94c07cf31f0bc24eff5011ef8cc7afbaJens Owen} 24233903e5ac94c07cf31f0bc24eff5011ef8cc7afbaJens Owen 2424d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca 2425d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca/** 2426d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * Send a device-specific read-write command. 2427d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 2428d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param fd file descriptor. 2429d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param drmCommandIndex command index 2430d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param data source pointer of the data to be read and written. 2431d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \param size size of the data to be read and written. 2432d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 2433d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \return zero on success, or a negative value on failure. 2434d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * 2435d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \internal 2436d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * It issues a read-write ioctl given by 2437d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca * \code DRM_COMMAND_BASE + drmCommandIndex \endcode. 2438d2443b2186712dd7c977b47e06444396e1e493ffJose Fonseca */ 243922e41ef08338ae6dd59acbe6d4d8e50d83672816Adam Jacksonint drmCommandWriteRead(int fd, unsigned long drmCommandIndex, void *data, 244022e41ef08338ae6dd59acbe6d4d8e50d83672816Adam Jackson unsigned long size) 24413903e5ac94c07cf31f0bc24eff5011ef8cc7afbaJens Owen{ 24423903e5ac94c07cf31f0bc24eff5011ef8cc7afbaJens Owen unsigned long request; 24433903e5ac94c07cf31f0bc24eff5011ef8cc7afbaJens Owen 244474ef13fd009b9e37956e4207d0a5ed92f4b5e39aAlan Hourihane request = DRM_IOC( DRM_IOC_READ|DRM_IOC_WRITE, DRM_IOCTL_BASE, 244574ef13fd009b9e37956e4207d0a5ed92f4b5e39aAlan Hourihane DRM_COMMAND_BASE + drmCommandIndex, size); 24463903e5ac94c07cf31f0bc24eff5011ef8cc7afbaJens Owen 24478b9ab108ec1f2ba2b503f713769c4946849b3cb2Keith Packard if (drmIoctl(fd, request, data)) 24483903e5ac94c07cf31f0bc24eff5011ef8cc7afbaJens Owen return -errno; 24493903e5ac94c07cf31f0bc24eff5011ef8cc7afbaJens Owen return 0; 24503903e5ac94c07cf31f0bc24eff5011ef8cc7afbaJens Owen} 2451166da9355d95affe427a6cff3525df60e80a99dfThomas Hellstrom 2452d51e1bb56ca2f7858cdeac6f61a7b747c1e15b1eDave Airlie#define DRM_MAX_FDS 16 2453d51e1bb56ca2f7858cdeac6f61a7b747c1e15b1eDave Airliestatic struct { 2454ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian char *BusID; 2455ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian int fd; 2456ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian int refcount; 2457d51e1bb56ca2f7858cdeac6f61a7b747c1e15b1eDave Airlie} connection[DRM_MAX_FDS]; 2458d51e1bb56ca2f7858cdeac6f61a7b747c1e15b1eDave Airlie 2459d51e1bb56ca2f7858cdeac6f61a7b747c1e15b1eDave Airliestatic int nr_fds = 0; 2460d51e1bb56ca2f7858cdeac6f61a7b747c1e15b1eDave Airlie 2461d51e1bb56ca2f7858cdeac6f61a7b747c1e15b1eDave Airlieint drmOpenOnce(void *unused, 2462d51e1bb56ca2f7858cdeac6f61a7b747c1e15b1eDave Airlie const char *BusID, 2463d51e1bb56ca2f7858cdeac6f61a7b747c1e15b1eDave Airlie int *newlyopened) 2464d51e1bb56ca2f7858cdeac6f61a7b747c1e15b1eDave Airlie{ 2465ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian int i; 2466ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian int fd; 2467d51e1bb56ca2f7858cdeac6f61a7b747c1e15b1eDave Airlie 2468ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian for (i = 0; i < nr_fds; i++) 2469ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian if (strcmp(BusID, connection[i].BusID) == 0) { 2470ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian connection[i].refcount++; 2471ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian *newlyopened = 0; 2472ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian return connection[i].fd; 2473ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian } 2474ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian 2475ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian fd = drmOpen(unused, BusID); 2476ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian if (fd <= 0 || nr_fds == DRM_MAX_FDS) 2477ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian return fd; 2478d51e1bb56ca2f7858cdeac6f61a7b747c1e15b1eDave Airlie 2479ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian connection[nr_fds].BusID = strdup(BusID); 2480ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian connection[nr_fds].fd = fd; 2481ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian connection[nr_fds].refcount = 1; 2482ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian *newlyopened = 1; 2483d51e1bb56ca2f7858cdeac6f61a7b747c1e15b1eDave Airlie 2484ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian if (0) 2485ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian fprintf(stderr, "saved connection %d for %s %d\n", 2486ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian nr_fds, connection[nr_fds].BusID, 2487ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian strcmp(BusID, connection[nr_fds].BusID)); 2488d51e1bb56ca2f7858cdeac6f61a7b747c1e15b1eDave Airlie 2489ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian nr_fds++; 2490d51e1bb56ca2f7858cdeac6f61a7b747c1e15b1eDave Airlie 2491ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian return fd; 2492d51e1bb56ca2f7858cdeac6f61a7b747c1e15b1eDave Airlie} 2493d51e1bb56ca2f7858cdeac6f61a7b747c1e15b1eDave Airlie 2494d51e1bb56ca2f7858cdeac6f61a7b747c1e15b1eDave Airlievoid drmCloseOnce(int fd) 2495d51e1bb56ca2f7858cdeac6f61a7b747c1e15b1eDave Airlie{ 2496ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian int i; 2497d51e1bb56ca2f7858cdeac6f61a7b747c1e15b1eDave Airlie 2498ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian for (i = 0; i < nr_fds; i++) { 2499ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian if (fd == connection[i].fd) { 2500ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian if (--connection[i].refcount == 0) { 2501ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian drmClose(connection[i].fd); 2502ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian free(connection[i].BusID); 2503d51e1bb56ca2f7858cdeac6f61a7b747c1e15b1eDave Airlie 2504ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian if (i < --nr_fds) 2505ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian connection[i] = connection[nr_fds]; 2506d51e1bb56ca2f7858cdeac6f61a7b747c1e15b1eDave Airlie 2507ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian return; 2508ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian } 2509ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian } 2510ccd7b6e8ddeac936518f626d2326ae439931b2bfBrian } 2511d51e1bb56ca2f7858cdeac6f61a7b747c1e15b1eDave Airlie} 2512731cd5526e5c732d51307b26e784f454a724a699Jesse Barnes 2513731cd5526e5c732d51307b26e784f454a724a699Jesse Barnesint drmSetMaster(int fd) 2514731cd5526e5c732d51307b26e784f454a724a699Jesse Barnes{ 2515fbc8b2d95f5da096ee771a3e2ef6f89306679e89Kristian Høgsberg return ioctl(fd, DRM_IOCTL_SET_MASTER, 0); 2516731cd5526e5c732d51307b26e784f454a724a699Jesse Barnes} 2517731cd5526e5c732d51307b26e784f454a724a699Jesse Barnes 2518731cd5526e5c732d51307b26e784f454a724a699Jesse Barnesint drmDropMaster(int fd) 2519731cd5526e5c732d51307b26e784f454a724a699Jesse Barnes{ 2520fbc8b2d95f5da096ee771a3e2ef6f89306679e89Kristian Høgsberg return ioctl(fd, DRM_IOCTL_DROP_MASTER, 0); 2521731cd5526e5c732d51307b26e784f454a724a699Jesse Barnes} 252222d46669043d38fcd16efca773f5ed5693c0fb58Kristian Høgsberg 252322d46669043d38fcd16efca773f5ed5693c0fb58Kristian Høgsbergchar *drmGetDeviceNameFromFd(int fd) 252422d46669043d38fcd16efca773f5ed5693c0fb58Kristian Høgsberg{ 252522d46669043d38fcd16efca773f5ed5693c0fb58Kristian Høgsberg char name[128]; 252622d46669043d38fcd16efca773f5ed5693c0fb58Kristian Høgsberg struct stat sbuf; 252722d46669043d38fcd16efca773f5ed5693c0fb58Kristian Høgsberg dev_t d; 252822d46669043d38fcd16efca773f5ed5693c0fb58Kristian Høgsberg int i; 252922d46669043d38fcd16efca773f5ed5693c0fb58Kristian Høgsberg 253022d46669043d38fcd16efca773f5ed5693c0fb58Kristian Høgsberg /* The whole drmOpen thing is a fiasco and we need to find a way 253122d46669043d38fcd16efca773f5ed5693c0fb58Kristian Høgsberg * back to just using open(2). For now, however, lets just make 253222d46669043d38fcd16efca773f5ed5693c0fb58Kristian Høgsberg * things worse with even more ad hoc directory walking code to 253322d46669043d38fcd16efca773f5ed5693c0fb58Kristian Høgsberg * discover the device file name. */ 253422d46669043d38fcd16efca773f5ed5693c0fb58Kristian Høgsberg 253522d46669043d38fcd16efca773f5ed5693c0fb58Kristian Høgsberg fstat(fd, &sbuf); 253622d46669043d38fcd16efca773f5ed5693c0fb58Kristian Høgsberg d = sbuf.st_rdev; 253722d46669043d38fcd16efca773f5ed5693c0fb58Kristian Høgsberg 253822d46669043d38fcd16efca773f5ed5693c0fb58Kristian Høgsberg for (i = 0; i < DRM_MAX_MINOR; i++) { 253922d46669043d38fcd16efca773f5ed5693c0fb58Kristian Høgsberg snprintf(name, sizeof name, DRM_DEV_NAME, DRM_DIR_NAME, i); 254022d46669043d38fcd16efca773f5ed5693c0fb58Kristian Høgsberg if (stat(name, &sbuf) == 0 && sbuf.st_rdev == d) 254122d46669043d38fcd16efca773f5ed5693c0fb58Kristian Høgsberg break; 254222d46669043d38fcd16efca773f5ed5693c0fb58Kristian Høgsberg } 254322d46669043d38fcd16efca773f5ed5693c0fb58Kristian Høgsberg if (i == DRM_MAX_MINOR) 254422d46669043d38fcd16efca773f5ed5693c0fb58Kristian Høgsberg return NULL; 254522d46669043d38fcd16efca773f5ed5693c0fb58Kristian Høgsberg 254622d46669043d38fcd16efca773f5ed5693c0fb58Kristian Høgsberg return drmStrdup(name); 254722d46669043d38fcd16efca773f5ed5693c0fb58Kristian Høgsberg} 2548