1 /*===---- htmintrin.h - Standard header for PowerPC HTM ---------------===*\ 2 * 3 * Permission is hereby granted, free of charge, to any person obtaining a copy 4 * of this software and associated documentation files (the "Software"), to deal 5 * in the Software without restriction, including without limitation the rights 6 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 7 * copies of the Software, and to permit persons to whom the Software is 8 * furnished to do so, subject to the following conditions: 9 * 10 * The above copyright notice and this permission notice shall be included in 11 * all copies or substantial portions of the Software. 12 * 13 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 14 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 15 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 16 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 17 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 18 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 19 * THE SOFTWARE. 20 * 21 \*===----------------------------------------------------------------------===*/ 22 23 #ifndef __HTMINTRIN_H 24 #define __HTMINTRIN_H 25 26 #ifndef __HTM__ 27 #error "HTM instruction set not enabled" 28 #endif 29 30 #ifdef __powerpc__ 31 32 #include <stdint.h> 33 34 typedef uint64_t texasr_t; 35 typedef uint32_t texasru_t; 36 typedef uint32_t texasrl_t; 37 typedef uintptr_t tfiar_t; 38 typedef uintptr_t tfhar_t; 39 40 #define _HTM_STATE(CR0) ((CR0 >> 1) & 0x3) 41 #define _HTM_NONTRANSACTIONAL 0x0 42 #define _HTM_SUSPENDED 0x1 43 #define _HTM_TRANSACTIONAL 0x2 44 45 #define _TEXASR_EXTRACT_BITS(TEXASR,BITNUM,SIZE) \ 46 (((TEXASR) >> (63-(BITNUM))) & ((1<<(SIZE))-1)) 47 #define _TEXASRU_EXTRACT_BITS(TEXASR,BITNUM,SIZE) \ 48 (((TEXASR) >> (31-(BITNUM))) & ((1<<(SIZE))-1)) 49 50 #define _TEXASR_FAILURE_CODE(TEXASR) \ 51 _TEXASR_EXTRACT_BITS(TEXASR, 7, 8) 52 #define _TEXASRU_FAILURE_CODE(TEXASRU) \ 53 _TEXASRU_EXTRACT_BITS(TEXASRU, 7, 8) 54 55 #define _TEXASR_FAILURE_PERSISTENT(TEXASR) \ 56 _TEXASR_EXTRACT_BITS(TEXASR, 7, 1) 57 #define _TEXASRU_FAILURE_PERSISTENT(TEXASRU) \ 58 _TEXASRU_EXTRACT_BITS(TEXASRU, 7, 1) 59 60 #define _TEXASR_DISALLOWED(TEXASR) \ 61 _TEXASR_EXTRACT_BITS(TEXASR, 8, 1) 62 #define _TEXASRU_DISALLOWED(TEXASRU) \ 63 _TEXASRU_EXTRACT_BITS(TEXASRU, 8, 1) 64 65 #define _TEXASR_NESTING_OVERFLOW(TEXASR) \ 66 _TEXASR_EXTRACT_BITS(TEXASR, 9, 1) 67 #define _TEXASRU_NESTING_OVERFLOW(TEXASRU) \ 68 _TEXASRU_EXTRACT_BITS(TEXASRU, 9, 1) 69 70 #define _TEXASR_FOOTPRINT_OVERFLOW(TEXASR) \ 71 _TEXASR_EXTRACT_BITS(TEXASR, 10, 1) 72 #define _TEXASRU_FOOTPRINT_OVERFLOW(TEXASRU) \ 73 _TEXASRU_EXTRACT_BITS(TEXASRU, 10, 1) 74 75 #define _TEXASR_SELF_INDUCED_CONFLICT(TEXASR) \ 76 _TEXASR_EXTRACT_BITS(TEXASR, 11, 1) 77 #define _TEXASRU_SELF_INDUCED_CONFLICT(TEXASRU) \ 78 _TEXASRU_EXTRACT_BITS(TEXASRU, 11, 1) 79 80 #define _TEXASR_NON_TRANSACTIONAL_CONFLICT(TEXASR) \ 81 _TEXASR_EXTRACT_BITS(TEXASR, 12, 1) 82 #define _TEXASRU_NON_TRANSACTIONAL_CONFLICT(TEXASRU) \ 83 _TEXASRU_EXTRACT_BITS(TEXASRU, 12, 1) 84 85 #define _TEXASR_TRANSACTION_CONFLICT(TEXASR) \ 86 _TEXASR_EXTRACT_BITS(TEXASR, 13, 1) 87 #define _TEXASRU_TRANSACTION_CONFLICT(TEXASRU) \ 88 _TEXASRU_EXTRACT_BITS(TEXASRU, 13, 1) 89 90 #define _TEXASR_TRANSLATION_INVALIDATION_CONFLICT(TEXASR) \ 91 _TEXASR_EXTRACT_BITS(TEXASR, 14, 1) 92 #define _TEXASRU_TRANSLATION_INVALIDATION_CONFLICT(TEXASRU) \ 93 _TEXASRU_EXTRACT_BITS(TEXASRU, 14, 1) 94 95 #define _TEXASR_IMPLEMENTAION_SPECIFIC(TEXASR) \ 96 _TEXASR_EXTRACT_BITS(TEXASR, 15, 1) 97 #define _TEXASRU_IMPLEMENTAION_SPECIFIC(TEXASRU) \ 98 _TEXASRU_EXTRACT_BITS(TEXASRU, 15, 1) 99 100 #define _TEXASR_INSTRUCTION_FETCH_CONFLICT(TEXASR) \ 101 _TEXASR_EXTRACT_BITS(TEXASR, 16, 1) 102 #define _TEXASRU_INSTRUCTION_FETCH_CONFLICT(TEXASRU) \ 103 _TEXASRU_EXTRACT_BITS(TEXASRU, 16, 1) 104 105 #define _TEXASR_ABORT(TEXASR) \ 106 _TEXASR_EXTRACT_BITS(TEXASR, 31, 1) 107 #define _TEXASRU_ABORT(TEXASRU) \ 108 _TEXASRU_EXTRACT_BITS(TEXASRU, 31, 1) 109 110 111 #define _TEXASR_SUSPENDED(TEXASR) \ 112 _TEXASR_EXTRACT_BITS(TEXASR, 32, 1) 113 114 #define _TEXASR_PRIVILEGE(TEXASR) \ 115 _TEXASR_EXTRACT_BITS(TEXASR, 35, 2) 116 117 #define _TEXASR_FAILURE_SUMMARY(TEXASR) \ 118 _TEXASR_EXTRACT_BITS(TEXASR, 36, 1) 119 120 #define _TEXASR_TFIAR_EXACT(TEXASR) \ 121 _TEXASR_EXTRACT_BITS(TEXASR, 37, 1) 122 123 #define _TEXASR_ROT(TEXASR) \ 124 _TEXASR_EXTRACT_BITS(TEXASR, 38, 1) 125 126 #define _TEXASR_TRANSACTION_LEVEL(TEXASR) \ 127 _TEXASR_EXTRACT_BITS(TEXASR, 63, 12) 128 129 #endif /* __powerpc */ 130 131 #ifdef __s390__ 132 133 /* Condition codes generated by tbegin */ 134 #define _HTM_TBEGIN_STARTED 0 135 #define _HTM_TBEGIN_INDETERMINATE 1 136 #define _HTM_TBEGIN_TRANSIENT 2 137 #define _HTM_TBEGIN_PERSISTENT 3 138 139 /* The abort codes below this threshold are reserved for machine use. */ 140 #define _HTM_FIRST_USER_ABORT_CODE 256 141 142 /* The transaction diagnostic block is it is defined in the Principles 143 of Operation chapter 5-91. */ 144 145 struct __htm_tdb { 146 unsigned char format; /* 0 */ 147 unsigned char flags; 148 unsigned char reserved1[4]; 149 unsigned short nesting_depth; 150 unsigned long long abort_code; /* 8 */ 151 unsigned long long conflict_token; /* 16 */ 152 unsigned long long atia; /* 24 */ 153 unsigned char eaid; /* 32 */ 154 unsigned char dxc; 155 unsigned char reserved2[2]; 156 unsigned int program_int_id; 157 unsigned long long exception_id; /* 40 */ 158 unsigned long long bea; /* 48 */ 159 unsigned char reserved3[72]; /* 56 */ 160 unsigned long long gprs[16]; /* 128 */ 161 } __attribute__((__packed__, __aligned__ (8))); 162 163 164 /* Helper intrinsics to retry tbegin in case of transient failure. */ 165 166 static __inline int __attribute__((__always_inline__, __nodebug__)) 167 __builtin_tbegin_retry_null (int __retry) 168 { 169 int cc, i = 0; 170 171 while ((cc = __builtin_tbegin(0)) == _HTM_TBEGIN_TRANSIENT 172 && i++ < __retry) 173 __builtin_tx_assist(i); 174 175 return cc; 176 } 177 178 static __inline int __attribute__((__always_inline__, __nodebug__)) 179 __builtin_tbegin_retry_tdb (void *__tdb, int __retry) 180 { 181 int cc, i = 0; 182 183 while ((cc = __builtin_tbegin(__tdb)) == _HTM_TBEGIN_TRANSIENT 184 && i++ < __retry) 185 __builtin_tx_assist(i); 186 187 return cc; 188 } 189 190 #define __builtin_tbegin_retry(tdb, retry) \ 191 (__builtin_constant_p(tdb == 0) && tdb == 0 ? \ 192 __builtin_tbegin_retry_null(retry) : \ 193 __builtin_tbegin_retry_tdb(tdb, retry)) 194 195 static __inline int __attribute__((__always_inline__, __nodebug__)) 196 __builtin_tbegin_retry_nofloat_null (int __retry) 197 { 198 int cc, i = 0; 199 200 while ((cc = __builtin_tbegin_nofloat(0)) == _HTM_TBEGIN_TRANSIENT 201 && i++ < __retry) 202 __builtin_tx_assist(i); 203 204 return cc; 205 } 206 207 static __inline int __attribute__((__always_inline__, __nodebug__)) 208 __builtin_tbegin_retry_nofloat_tdb (void *__tdb, int __retry) 209 { 210 int cc, i = 0; 211 212 while ((cc = __builtin_tbegin_nofloat(__tdb)) == _HTM_TBEGIN_TRANSIENT 213 && i++ < __retry) 214 __builtin_tx_assist(i); 215 216 return cc; 217 } 218 219 #define __builtin_tbegin_retry_nofloat(tdb, retry) \ 220 (__builtin_constant_p(tdb == 0) && tdb == 0 ? \ 221 __builtin_tbegin_retry_nofloat_null(retry) : \ 222 __builtin_tbegin_retry_nofloat_tdb(tdb, retry)) 223 224 #endif /* __s390__ */ 225 226 #endif /* __HTMINTRIN_H */ 227
