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      1 /*
      2  * Copyright 2014 Advanced Micro Devices, Inc.
      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 
     24 #ifndef AC_BINARY_H
     25 #define AC_BINARY_H
     26 
     27 #include <stdint.h>
     28 #include <stdbool.h>
     29 
     30 struct ac_shader_reloc {
     31 	char name[32];
     32 	uint64_t offset;
     33 };
     34 
     35 struct ac_shader_binary {
     36 	unsigned code_size;
     37 	unsigned config_size;
     38 	/** The number of bytes of config information for each global symbol.
     39 	 */
     40 	unsigned config_size_per_symbol;
     41 	unsigned rodata_size;
     42 	unsigned global_symbol_count;
     43 	unsigned reloc_count;
     44 
     45 	/** Shader code */
     46 	unsigned char *code;
     47 
     48 	/** Config/Context register state that accompanies this shader.
     49 	 * This is a stream of dword pairs.  First dword contains the
     50 	 * register address, the second dword contains the value.*/
     51 	unsigned char *config;
     52 
     53 
     54 	/** Constant data accessed by the shader.  This will be uploaded
     55 	 * into a constant buffer. */
     56 	unsigned char *rodata;
     57 
     58 	/** List of symbol offsets for the shader */
     59 	uint64_t *global_symbol_offsets;
     60 
     61 	struct ac_shader_reloc *relocs;
     62 
     63 	/** Disassembled shader in a string. */
     64 	char *disasm_string;
     65 	char *llvm_ir_string;
     66 };
     67 
     68 struct ac_shader_config {
     69 	unsigned num_sgprs;
     70 	unsigned num_vgprs;
     71 	unsigned spilled_sgprs;
     72 	unsigned spilled_vgprs;
     73 	unsigned lds_size;
     74 	unsigned spi_ps_input_ena;
     75 	unsigned spi_ps_input_addr;
     76 	unsigned float_mode;
     77 	unsigned scratch_bytes_per_wave;
     78 };
     79 
     80 /*
     81  * Parse the elf binary stored in \p elf_data and create a
     82  * ac_shader_binary object.
     83  */
     84 bool ac_elf_read(const char *elf_data, unsigned elf_size,
     85 		 struct ac_shader_binary *binary);
     86 
     87 /**
     88  * @returns A pointer to the start of the configuration information for
     89  * the function starting at \p symbol_offset of the binary.
     90  */
     91 const unsigned char *ac_shader_binary_config_start(
     92 	const struct ac_shader_binary *binary,
     93 	uint64_t symbol_offset);
     94 
     95 void ac_shader_binary_read_config(struct ac_shader_binary *binary,
     96 				  struct ac_shader_config *conf,
     97 				  unsigned symbol_offset,
     98 				  bool supports_spill);
     99 void ac_shader_binary_clean(struct ac_shader_binary *b);
    100 
    101 #endif /* AC_BINARY_H */
    102