/* * Copyright 2014-2019 Advanced Micro Devices, Inc. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice (including the next * paragraph) shall be included in all copies or substantial portions of the * Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #ifndef AC_RTLD_H #define AC_RTLD_H #include #include #include #include "util/u_dynarray.h" struct ac_rtld_part; struct ac_shader_config; struct radeon_info; struct ac_rtld_symbol { const char *name; uint32_t size; uint32_t align; uint64_t offset; /* filled in by ac_rtld_open */ unsigned part_idx; /* shader part in which this symbol appears */ }; /* Lightweight wrapper around underlying ELF objects. */ struct ac_rtld_binary { /* Required buffer sizes, currently read/executable only. */ uint64_t rx_size; uint64_t rx_end_markers; unsigned num_parts; struct ac_rtld_part *parts; struct util_dynarray lds_symbols; uint32_t lds_size; }; /** * Callback function type used during upload to resolve external symbols that * are not defined in any of the ELF binaries available to the linker. * * \param cb_data caller-defined data * \param symbol NUL-terminated symbol name * \param value to be filled in by the callback * \return whether the symbol was found successfully */ typedef bool (*ac_rtld_get_external_symbol_cb)( void *cb_data, const char *symbol, uint64_t *value); /** * Lifetimes of \ref info, in-memory ELF objects, and the names of * \ref shared_lds_symbols must extend until \ref ac_rtld_close is called on * the opened binary. */ struct ac_rtld_open_info { const struct radeon_info *info; unsigned num_parts; const char * const *elf_ptrs; /* in-memory ELF objects of each part */ const size_t *elf_sizes; /* sizes of corresponding in-memory ELF objects in bytes */ /* Shared LDS symbols are layouted such that they are accessible from * all shader parts. Non-shared (private) LDS symbols of one part may * overlap private LDS symbols of another shader part. */ unsigned num_shared_lds_symbols; const struct ac_rtld_symbol *shared_lds_symbols; }; bool ac_rtld_open(struct ac_rtld_binary *binary, struct ac_rtld_open_info i); void ac_rtld_close(struct ac_rtld_binary *binary); bool ac_rtld_get_section_by_name(struct ac_rtld_binary *binary, const char *name, const char **data, size_t *nbytes); bool ac_rtld_read_config(struct ac_rtld_binary *binary, struct ac_shader_config *config); struct ac_rtld_upload_info { struct ac_rtld_binary *binary; /** GPU mapping of the read/executable buffer. */ uint64_t rx_va; /** CPU mapping of the read/executable buffer */ char *rx_ptr; /** Optional callback function that will be queried for symbols not * defined in any of the binary's parts. */ ac_rtld_get_external_symbol_cb get_external_symbol; /** Caller-defined data that will be passed to callback functions. */ void *cb_data; }; bool ac_rtld_upload(struct ac_rtld_upload_info *u); #endif /* AC_RTLD_H */