1 /* 2 * Copyright (C) 2009 Nicolai Haehnle. 3 * Copyright 2010 Tom Stellard <tstellar@gmail.com> 4 * 5 * All Rights Reserved. 6 * 7 * Permission is hereby granted, free of charge, to any person obtaining 8 * a copy of this software and associated documentation files (the 9 * "Software"), to deal in the Software without restriction, including 10 * without limitation the rights to use, copy, modify, merge, publish, 11 * distribute, sublicense, and/or sell copies of the Software, and to 12 * permit persons to whom the Software is furnished to do so, subject to 13 * the following conditions: 14 * 15 * The above copyright notice and this permission notice (including the 16 * next paragraph) shall be included in all copies or substantial 17 * portions of the Software. 18 * 19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 20 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 21 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 22 * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE 23 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 24 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 25 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 26 * 27 */ 28 29 #ifndef RADEON_DATAFLOW_H 30 #define RADEON_DATAFLOW_H 31 32 #include "radeon_program_constants.h" 33 34 #include <stdbool.h> 35 36 struct radeon_compiler; 37 struct rc_instruction; 38 struct rc_swizzle_caps; 39 struct rc_src_register; 40 struct rc_pair_instruction_arg; 41 struct rc_pair_instruction_source; 42 struct rc_pair_sub_instruction; 43 struct rc_compiler; 44 45 46 /** 47 * Help analyze and modify the register accesses of instructions. 48 */ 49 /*@{*/ 50 typedef void (*rc_read_write_chan_fn)(void * userdata, struct rc_instruction * inst, 51 rc_register_file file, unsigned int index, unsigned int chan); 52 void rc_for_all_reads_chan(struct rc_instruction * inst, rc_read_write_chan_fn cb, void * userdata); 53 void rc_for_all_writes_chan(struct rc_instruction * inst, rc_read_write_chan_fn cb, void * userdata); 54 55 typedef void (*rc_read_write_mask_fn)(void * userdata, struct rc_instruction * inst, 56 rc_register_file file, unsigned int index, unsigned int mask); 57 void rc_for_all_reads_mask(struct rc_instruction * inst, rc_read_write_mask_fn cb, void * userdata); 58 void rc_for_all_writes_mask(struct rc_instruction * inst, rc_read_write_mask_fn cb, void * userdata); 59 60 typedef void (*rc_read_src_fn)(void * userdata, struct rc_instruction * inst, 61 struct rc_src_register * src); 62 void rc_for_all_reads_src(struct rc_instruction * inst, rc_read_src_fn cb, 63 void * userdata); 64 65 typedef void (*rc_pair_read_arg_fn)(void * userdata, 66 struct rc_instruction * inst, struct rc_pair_instruction_arg * arg, 67 struct rc_pair_instruction_source * src); 68 void rc_pair_for_all_reads_arg(struct rc_instruction * inst, 69 rc_pair_read_arg_fn cb, void * userdata); 70 71 typedef void (*rc_remap_register_fn)(void * userdata, struct rc_instruction * inst, 72 rc_register_file * pfile, unsigned int * pindex); 73 void rc_remap_registers(struct rc_instruction * inst, rc_remap_register_fn cb, void * userdata); 74 /*@}*/ 75 76 struct rc_reader { 77 struct rc_instruction * Inst; 78 unsigned int WriteMask; 79 union { 80 struct { 81 struct rc_src_register * Src; 82 } I; 83 struct { 84 struct rc_pair_instruction_arg * Arg; 85 struct rc_pair_instruction_source * Src; 86 } P; 87 } U; 88 }; 89 90 struct rc_reader_data { 91 unsigned int Abort; 92 unsigned int AbortOnRead; 93 unsigned int AbortOnWrite; 94 unsigned int LoopDepth; 95 unsigned int InElse; 96 bool ReadersAfterEndloop; 97 struct rc_instruction * Writer; 98 99 unsigned int ReaderCount; 100 unsigned int ReadersReserved; 101 struct rc_reader * Readers; 102 103 /* If this flag is enabled, rc_get_readers will exit as soon possbile 104 * after the Abort flag is set.*/ 105 unsigned int ExitOnAbort; 106 void * CbData; 107 }; 108 109 void rc_get_readers( 110 struct radeon_compiler * c, 111 struct rc_instruction * writer, 112 struct rc_reader_data * data, 113 rc_read_src_fn read_normal_cb, 114 rc_pair_read_arg_fn read_pair_cb, 115 rc_read_write_mask_fn write_cb); 116 117 void rc_get_readers_sub( 118 struct radeon_compiler * c, 119 struct rc_instruction * writer, 120 struct rc_pair_sub_instruction * sub_writer, 121 struct rc_reader_data * data, 122 rc_read_src_fn read_normal_cb, 123 rc_pair_read_arg_fn read_pair_cb, 124 rc_read_write_mask_fn write_cb); 125 /** 126 * Compiler passes based on dataflow analysis. 127 */ 128 /*@{*/ 129 typedef void (*rc_dataflow_mark_outputs_fn)(void * userdata, void * data, 130 void (*mark_fn)(void * data, unsigned int index, unsigned int mask)); 131 void rc_dataflow_deadcode(struct radeon_compiler * c, void *user); 132 void rc_dataflow_swizzles(struct radeon_compiler * c, void *user); 133 /*@}*/ 134 135 void rc_optimize(struct radeon_compiler * c, void *user); 136 void rc_inline_literals(struct radeon_compiler *c, void *user); 137 138 #endif /* RADEON_DATAFLOW_H */ 139