1 /* 2 * Copyright (C) 2013 Rob Clark <robclark@freedesktop.org> 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice (including the next 12 * paragraph) shall be included in all copies or substantial portions of the 13 * Software. 14 * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 20 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 21 * SOFTWARE. 22 * 23 * Authors: 24 * Rob Clark <robclark@freedesktop.org> 25 */ 26 27 #ifndef LOADER_H 28 #define LOADER_H 29 30 #include <stdbool.h> 31 #include <sys/stat.h> 32 #include <stddef.h> 33 #include "mesa_interface.h" 34 35 #ifdef __cplusplus 36 extern "C" { 37 #endif 38 39 /* Helpers to figure out driver and device name, eg. from pci-id, etc. */ 40 41 int 42 loader_open_device(const char *); 43 44 char * 45 loader_get_kernel_driver_name(int fd); 46 47 int 48 loader_open_render_node_platform_device(const char * const drivers[], 49 unsigned int n_drivers); 50 51 bool 52 loader_is_device_render_capable(int fd); 53 54 char * 55 loader_get_render_node(dev_t device); 56 57 bool 58 loader_get_pci_id_for_fd(int fd, int *vendor_id, int *chip_id); 59 60 char * 61 loader_get_driver_for_fd(int fd); 62 63 void * 64 loader_open_driver_lib(const char *driver_name, 65 const char *lib_suffix, 66 const char **search_path_vars, 67 const char *default_search_path, 68 bool warn_on_fail); 69 70 char * 71 loader_get_device_name_for_fd(int fd); 72 73 /* For dri prime gpu offloading this function will take current render fd and possibly 74 * update it with new prime gpu offloading fd. For dri prime gpu offloading optionally 75 * this function can return the original fd. Also this function returns true/false based 76 * on render gpu is different from display gpu. 77 */ 78 79 bool 80 loader_get_user_preferred_fd(int *fd_render_gpu, int *original_fd); 81 82 /* for logging.. keep this aligned with egllog.h so we can just use 83 * _eglLog directly. 84 */ 85 86 #define _LOADER_FATAL 0 /* unrecoverable error */ 87 #define _LOADER_WARNING 1 /* recoverable error/problem */ 88 #define _LOADER_INFO 2 /* just useful info */ 89 #define _LOADER_DEBUG 3 /* useful info for debugging */ 90 91 typedef void loader_logger(int level, const char *fmt, ...); 92 void 93 loader_set_logger(loader_logger *logger); 94 95 struct dri_extension_match { 96 /* __DRI_* extension name */ 97 const char *name; 98 99 /* Required minimum version in the extension struct */ 100 int version; 101 102 /* offset in the data arg at which to store a pointer to the extension */ 103 int offset; 104 105 bool optional; 106 }; 107 108 bool loader_bind_extensions(void *data, 109 const struct dri_extension_match *matches, size_t num_matches, 110 const __DRIextension **extensions); 111 112 #ifdef __cplusplus 113 } 114 #endif 115 116 #endif /* LOADER_H */ 117