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| Rev | Author | Line No. | Line |
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| 5564 | serge | 1 | /* |
| 2 | * Copyright 2011 Advanced Micro Devices, Inc. |
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| 3 | * |
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| 4 | * Permission is hereby granted, free of charge, to any person obtaining a |
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| 5 | * copy of this software and associated documentation files (the "Software"), |
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| 6 | * to deal in the Software without restriction, including without limitation |
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| 7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
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| 8 | * and/or sell copies of the Software, and to permit persons to whom the |
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| 9 | * Software is furnished to do so, subject to the following conditions: |
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| 10 | * |
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| 11 | * The above copyright notice and this permission notice (including the next |
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| 12 | * paragraph) shall be included in all copies or substantial portions of the |
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| 13 | * Software. |
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| 14 | * |
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| 15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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| 16 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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| 17 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
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| 18 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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| 19 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
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| 20 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
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| 21 | * SOFTWARE. |
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| 22 | * |
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| 23 | * Authors: Tom Stellard |
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| 24 | * |
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| 25 | */ |
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| 26 | #include "radeon_llvm_emit.h" |
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| 27 | #include "radeon_elf_util.h" |
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| 28 | #include "util/u_memory.h" |
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| 29 | #include "pipe/p_shader_tokens.h" |
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| 30 | |||
| 31 | #include |
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| 32 | #include |
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| 33 | #include |
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| 34 | |||
| 35 | #include |
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| 36 | #include |
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| 37 | #include |
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| 38 | |||
| 39 | #define CPU_STRING_LEN 30 |
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| 40 | #define FS_STRING_LEN 30 |
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| 41 | #define TRIPLE_STRING_LEN 7 |
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| 42 | |||
| 43 | /** |
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| 44 | * Shader types for the LLVM backend. |
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| 45 | */ |
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| 46 | enum radeon_llvm_shader_type { |
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| 47 | RADEON_LLVM_SHADER_PS = 0, |
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| 48 | RADEON_LLVM_SHADER_VS = 1, |
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| 49 | RADEON_LLVM_SHADER_GS = 2, |
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| 50 | RADEON_LLVM_SHADER_CS = 3, |
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| 51 | }; |
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| 52 | |||
| 53 | /** |
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| 54 | * Set the shader type we want to compile |
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| 55 | * |
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| 56 | * @param type shader type to set |
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| 57 | */ |
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| 58 | void radeon_llvm_shader_type(LLVMValueRef F, unsigned type) |
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| 59 | { |
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| 60 | char Str[2]; |
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| 61 | enum radeon_llvm_shader_type llvm_type; |
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| 62 | |||
| 63 | switch (type) { |
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| 64 | case TGSI_PROCESSOR_VERTEX: |
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| 65 | llvm_type = RADEON_LLVM_SHADER_VS; |
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| 66 | break; |
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| 67 | case TGSI_PROCESSOR_GEOMETRY: |
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| 68 | llvm_type = RADEON_LLVM_SHADER_GS; |
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| 69 | break; |
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| 70 | case TGSI_PROCESSOR_FRAGMENT: |
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| 71 | llvm_type = RADEON_LLVM_SHADER_PS; |
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| 72 | break; |
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| 73 | case TGSI_PROCESSOR_COMPUTE: |
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| 74 | llvm_type = RADEON_LLVM_SHADER_CS; |
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| 75 | break; |
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| 76 | default: |
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| 77 | assert(0); |
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| 78 | } |
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| 79 | |||
| 80 | sprintf(Str, "%1d", llvm_type); |
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| 81 | |||
| 82 | LLVMAddTargetDependentFunctionAttr(F, "ShaderType", Str); |
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| 83 | } |
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| 84 | |||
| 85 | static void init_r600_target() |
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| 86 | { |
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| 87 | static unsigned initialized = 0; |
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| 88 | if (!initialized) { |
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| 89 | LLVMInitializeR600TargetInfo(); |
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| 90 | LLVMInitializeR600Target(); |
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| 91 | LLVMInitializeR600TargetMC(); |
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| 92 | LLVMInitializeR600AsmPrinter(); |
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| 93 | initialized = 1; |
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| 94 | } |
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| 95 | } |
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| 96 | |||
| 97 | LLVMTargetRef radeon_llvm_get_r600_target(const char *triple) |
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| 98 | { |
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| 99 | LLVMTargetRef target = NULL; |
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| 100 | char *err_message = NULL; |
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| 101 | |||
| 102 | init_r600_target(); |
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| 103 | |||
| 104 | if (LLVMGetTargetFromTriple(triple, &target, &err_message)) { |
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| 105 | fprintf(stderr, "Cannot find target for triple %s ", triple); |
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| 106 | if (err_message) { |
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| 107 | fprintf(stderr, "%s\n", err_message); |
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| 108 | } |
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| 109 | LLVMDisposeMessage(err_message); |
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| 110 | return NULL; |
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| 111 | } |
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| 112 | return target; |
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| 113 | } |
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| 114 | |||
| 115 | #if HAVE_LLVM >= 0x0305 |
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| 116 | |||
| 117 | static void radeonDiagnosticHandler(LLVMDiagnosticInfoRef di, void *context) |
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| 118 | { |
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| 119 | if (LLVMGetDiagInfoSeverity(di) == LLVMDSError) { |
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| 120 | unsigned int *diagnosticflag = (unsigned int *)context; |
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| 121 | char *diaginfo_message = LLVMGetDiagInfoDescription(di); |
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| 122 | |||
| 123 | *diagnosticflag = 1; |
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| 124 | fprintf(stderr,"LLVM triggered Diagnostic Handler: %s\n", diaginfo_message); |
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| 125 | LLVMDisposeMessage(diaginfo_message); |
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| 126 | } |
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| 127 | } |
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| 128 | |||
| 129 | #endif |
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| 130 | |||
| 131 | /** |
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| 132 | * Compile an LLVM module to machine code. |
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| 133 | * |
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| 134 | * @returns 0 for success, 1 for failure |
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| 135 | */ |
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| 136 | unsigned radeon_llvm_compile(LLVMModuleRef M, struct radeon_shader_binary *binary, |
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| 137 | const char *gpu_family, unsigned dump, LLVMTargetMachineRef tm) |
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| 138 | { |
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| 139 | |||
| 140 | char cpu[CPU_STRING_LEN]; |
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| 141 | char fs[FS_STRING_LEN]; |
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| 142 | char *err; |
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| 143 | bool dispose_tm = false; |
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| 144 | LLVMContextRef llvm_ctx; |
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| 145 | unsigned rval = 0; |
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| 146 | LLVMMemoryBufferRef out_buffer; |
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| 147 | unsigned buffer_size; |
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| 148 | const char *buffer_data; |
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| 149 | char triple[TRIPLE_STRING_LEN]; |
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| 150 | LLVMBool mem_err; |
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| 151 | |||
| 152 | if (!tm) { |
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| 153 | strncpy(triple, "r600--", TRIPLE_STRING_LEN); |
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| 154 | LLVMTargetRef target = radeon_llvm_get_r600_target(triple); |
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| 155 | if (!target) { |
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| 156 | return 1; |
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| 157 | } |
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| 158 | strncpy(cpu, gpu_family, CPU_STRING_LEN); |
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| 159 | memset(fs, 0, sizeof(fs)); |
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| 160 | if (dump) { |
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| 161 | strncpy(fs, "+DumpCode", FS_STRING_LEN); |
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| 162 | } |
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| 163 | tm = LLVMCreateTargetMachine(target, triple, cpu, fs, |
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| 164 | LLVMCodeGenLevelDefault, LLVMRelocDefault, |
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| 165 | LLVMCodeModelDefault); |
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| 166 | dispose_tm = true; |
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| 167 | } |
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| 168 | if (dump) { |
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| 169 | LLVMDumpModule(M); |
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| 170 | } |
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| 171 | /* Setup Diagnostic Handler*/ |
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| 172 | llvm_ctx = LLVMGetModuleContext(M); |
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| 173 | |||
| 174 | #if HAVE_LLVM >= 0x0305 |
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| 175 | LLVMContextSetDiagnosticHandler(llvm_ctx, radeonDiagnosticHandler, &rval); |
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| 176 | #endif |
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| 177 | rval = 0; |
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| 178 | |||
| 179 | /* Compile IR*/ |
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| 180 | mem_err = LLVMTargetMachineEmitToMemoryBuffer(tm, M, LLVMObjectFile, &err, |
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| 181 | &out_buffer); |
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| 182 | |||
| 183 | /* Process Errors/Warnings */ |
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| 184 | if (mem_err) { |
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| 185 | fprintf(stderr, "%s: %s", __FUNCTION__, err); |
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| 186 | FREE(err); |
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| 187 | LLVMDisposeTargetMachine(tm); |
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| 188 | return 1; |
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| 189 | } |
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| 190 | |||
| 191 | if (0 != rval) { |
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| 192 | fprintf(stderr, "%s: Processing Diag Flag\n", __FUNCTION__); |
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| 193 | } |
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| 194 | |||
| 195 | /* Extract Shader Code*/ |
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| 196 | buffer_size = LLVMGetBufferSize(out_buffer); |
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| 197 | buffer_data = LLVMGetBufferStart(out_buffer); |
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| 198 | |||
| 199 | radeon_elf_read(buffer_data, buffer_size, binary, dump); |
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| 200 | |||
| 201 | /* Clean up */ |
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| 202 | LLVMDisposeMemoryBuffer(out_buffer); |
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| 203 | |||
| 204 | if (dispose_tm) { |
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| 205 | LLVMDisposeTargetMachine(tm); |
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| 206 | } |
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| 207 | return rval; |
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| 208 | } |