Marc Jones | 8ae8c88 | 2007-12-19 01:32:08 +0000 | [diff] [blame] | 1 | /* |
Stefan Reinauer | 7e61e45 | 2008-01-18 10:35:56 +0000 | [diff] [blame] | 2 | * This file is part of the coreboot project. |
Marc Jones | 8ae8c88 | 2007-12-19 01:32:08 +0000 | [diff] [blame] | 3 | * |
| 4 | * Copyright (C) 2007 Advanced Micro Devices, Inc. |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; version 2 of the License. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License |
| 16 | * along with this program; if not, write to the Free Software |
| 17 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 18 | */ |
| 19 | |
| 20 | |
| 21 | static inline void _WRMSR(u32 addr, u32 lo, u32 hi) |
| 22 | { |
| 23 | __asm__ volatile ( |
| 24 | "wrmsr" |
| 25 | : |
| 26 | :"c"(addr),"a"(lo), "d" (hi) |
| 27 | ); |
| 28 | } |
| 29 | |
| 30 | |
| 31 | static inline void _RDMSR(u32 addr, u32 *lo, u32 *hi) |
| 32 | { |
| 33 | __asm__ volatile ( |
| 34 | "rdmsr" |
| 35 | :"=a"(*lo), "=d" (*hi) |
| 36 | :"c"(addr) |
| 37 | ); |
| 38 | } |
| 39 | |
| 40 | |
| 41 | static inline void _RDTSC(u32 *lo, u32 *hi) |
| 42 | { |
| 43 | __asm__ volatile ( |
| 44 | "rdtsc" |
| 45 | : "=a" (*lo), "=d"(*hi) |
| 46 | ); |
| 47 | } |
| 48 | |
| 49 | |
| 50 | static inline void _cpu_id(u32 addr, u32 *val) |
| 51 | { |
| 52 | __asm__ volatile( |
| 53 | "cpuid" |
| 54 | : "=a" (val[0]), |
| 55 | "=b" (val[1]), |
| 56 | "=c" (val[2]), |
| 57 | "=d" (val[3]) |
| 58 | : "0" (addr)); |
| 59 | |
| 60 | } |
| 61 | |
| 62 | |
Marc Jones | 65e0804 | 2008-04-25 21:34:25 +0000 | [diff] [blame] | 63 | static u32 bsr(u32 x) |
Marc Jones | 8ae8c88 | 2007-12-19 01:32:08 +0000 | [diff] [blame] | 64 | { |
| 65 | u8 i; |
| 66 | u32 ret = 0; |
| 67 | |
| 68 | for(i=31; i>0; i--) { |
| 69 | if(x & (1<<i)) { |
| 70 | ret = i; |
| 71 | break; |
| 72 | } |
| 73 | } |
| 74 | |
| 75 | return ret; |
| 76 | |
| 77 | } |
| 78 | |
| 79 | |
Marc Jones | 65e0804 | 2008-04-25 21:34:25 +0000 | [diff] [blame] | 80 | static u32 bsf(u32 x) |
Marc Jones | 8ae8c88 | 2007-12-19 01:32:08 +0000 | [diff] [blame] | 81 | { |
| 82 | u8 i; |
| 83 | u32 ret = 32; |
| 84 | |
| 85 | for(i=0; i<32; i++) { |
| 86 | if(x & (1<<i)) { |
| 87 | ret = i; |
| 88 | break; |
| 89 | } |
| 90 | } |
| 91 | |
| 92 | return ret; |
| 93 | } |
| 94 | |
| 95 | #define _MFENCE asm volatile ( "mfence") |
| 96 | |
| 97 | #define _SFENCE asm volatile ( "sfence" ) |
| 98 | |
| 99 | /* prevent speculative execution of following instructions */ |
| 100 | #define _EXECFENCE asm volatile ("outb %al, $0xed") |
| 101 | |
| 102 | static inline u32 read_cr4(void) |
| 103 | { |
| 104 | u32 cr4; |
| 105 | __asm__ volatile ("movl %%cr4, %0" : "=r" (cr4)); |
| 106 | return cr4; |
| 107 | } |
| 108 | |
| 109 | |
| 110 | static inline void write_cr4(u32 cr4) |
| 111 | { |
| 112 | __asm__ volatile ("movl %0, %%cr4" : : "r" (cr4)); |
| 113 | } |
| 114 | |
| 115 | |
| 116 | u32 SetUpperFSbase(u32 addr_hi); |
| 117 | |
| 118 | |
| 119 | static void proc_CLFLUSH(u32 addr_hi) |
| 120 | { |
| 121 | SetUpperFSbase(addr_hi); |
| 122 | |
| 123 | __asm__ volatile ( |
| 124 | /* clflush fs:[eax] */ |
| 125 | "outb %%al, $0xed\n\t" /* _EXECFENCE */ |
| 126 | "clflush %%fs:(%0)\n\t" |
| 127 | "mfence\n\t" |
| 128 | ::"a" (addr_hi<<8) |
| 129 | ); |
| 130 | } |
| 131 | |
| 132 | |
| 133 | static void WriteLNTestPattern(u32 addr_lo, u8 *buf_a, u32 line_num) |
| 134 | { |
| 135 | __asm__ volatile ( |
| 136 | /*prevent speculative execution of following instructions*/ |
| 137 | /* FIXME: needed ? */ |
| 138 | "outb %%al, $0xed\n\t" /* _EXECFENCE */ |
| 139 | "1:\n\t" |
| 140 | "movdqa (%3), %%xmm0\n\t" |
| 141 | "movntdq %%xmm0, %%fs:(%0)\n\t" /* xmm0 is 128 bit */ |
| 142 | "addl %1, %0\n\t" |
| 143 | "addl %1, %3\n\t" |
| 144 | "loop 1b\n\t" |
| 145 | "mfence\n\t" |
| 146 | |
| 147 | :: "a" (addr_lo), "d" (16), "c" (line_num * 4), "b"(buf_a) |
| 148 | ); |
| 149 | |
| 150 | } |
| 151 | |
| 152 | |
Myles Watson | 075fbe8 | 2010-04-15 05:19:29 +0000 | [diff] [blame] | 153 | static u32 read32_fs(u32 addr_lo) |
Marc Jones | 8ae8c88 | 2007-12-19 01:32:08 +0000 | [diff] [blame] | 154 | { |
| 155 | u32 value; |
| 156 | __asm__ volatile ( |
| 157 | "outb %%al, $0xed\n\t" /* _EXECFENCE */ |
| 158 | "movl %%fs:(%1), %0\n\t" |
| 159 | :"=b"(value): "a" (addr_lo) |
| 160 | ); |
| 161 | return value; |
| 162 | } |
| 163 | |
Stefan Reinauer | d653211 | 2010-04-16 00:31:44 +0000 | [diff] [blame] | 164 | #ifdef UNUSED_CODE |
Myles Watson | 075fbe8 | 2010-04-15 05:19:29 +0000 | [diff] [blame] | 165 | static u8 read8_fs(u32 addr_lo) |
Marc Jones | 8ae8c88 | 2007-12-19 01:32:08 +0000 | [diff] [blame] | 166 | { |
| 167 | u8 byte; |
| 168 | __asm__ volatile ( |
| 169 | "outb %%al, $0xed\n\t" /* _EXECFENCE */ |
| 170 | "movb %%fs:(%1), %b0\n\t" |
| 171 | "mfence\n\t" |
| 172 | :"=b"(byte): "a" (addr_lo) |
| 173 | ); |
| 174 | return byte; |
| 175 | } |
Stefan Reinauer | d653211 | 2010-04-16 00:31:44 +0000 | [diff] [blame] | 176 | #endif |
Marc Jones | 8ae8c88 | 2007-12-19 01:32:08 +0000 | [diff] [blame] | 177 | |
| 178 | static void FlushDQSTestPattern_L9(u32 addr_lo) |
| 179 | { |
| 180 | __asm__ volatile ( |
| 181 | "outb %%al, $0xed\n\t" /* _EXECFENCE */ |
| 182 | "clflush %%fs:-128(%%ecx)\n\t" |
| 183 | "clflush %%fs:-64(%%ecx)\n\t" |
| 184 | "clflush %%fs:(%%ecx)\n\t" |
| 185 | "clflush %%fs:64(%%ecx)\n\t" |
| 186 | |
| 187 | "clflush %%fs:-128(%%eax)\n\t" |
| 188 | "clflush %%fs:-64(%%eax)\n\t" |
| 189 | "clflush %%fs:(%%eax)\n\t" |
| 190 | "clflush %%fs:64(%%eax)\n\t" |
| 191 | |
| 192 | "clflush %%fs:-128(%%ebx)\n\t" |
| 193 | |
| 194 | :: "b" (addr_lo+128+8*64), "c"(addr_lo+128), |
| 195 | "a"(addr_lo+128+4*64) |
| 196 | ); |
| 197 | |
| 198 | } |
| 199 | |
| 200 | |
| 201 | static __attribute__((noinline)) void FlushDQSTestPattern_L18(u32 addr_lo) |
| 202 | { |
| 203 | __asm__ volatile ( |
| 204 | "outb %%al, $0xed\n\t" /* _EXECFENCE */ |
| 205 | "clflush %%fs:-128(%%eax)\n\t" |
| 206 | "clflush %%fs:-64(%%eax)\n\t" |
| 207 | "clflush %%fs:(%%eax)\n\t" |
| 208 | "clflush %%fs:64(%%eax)\n\t" |
| 209 | |
| 210 | "clflush %%fs:-128(%%edi)\n\t" |
| 211 | "clflush %%fs:-64(%%edi)\n\t" |
| 212 | "clflush %%fs:(%%edi)\n\t" |
| 213 | "clflush %%fs:64(%%edi)\n\t" |
| 214 | |
| 215 | "clflush %%fs:-128(%%ebx)\n\t" |
| 216 | "clflush %%fs:-64(%%ebx)\n\t" |
| 217 | "clflush %%fs:(%%ebx)\n\t" |
| 218 | "clflush %%fs:64(%%ebx)\n\t" |
| 219 | |
| 220 | "clflush %%fs:-128(%%ecx)\n\t" |
| 221 | "clflush %%fs:-64(%%ecx)\n\t" |
| 222 | "clflush %%fs:(%%ecx)\n\t" |
| 223 | "clflush %%fs:64(%%ecx)\n\t" |
| 224 | |
| 225 | "clflush %%fs:-128(%%edx)\n\t" |
| 226 | "clflush %%fs:-64(%%edx)\n\t" |
| 227 | |
| 228 | :: "b" (addr_lo+128+8*64), "c" (addr_lo+128+12*64), |
| 229 | "d" (addr_lo +128+16*64), "a"(addr_lo+128), |
| 230 | "D"(addr_lo+128+4*64) |
| 231 | ); |
| 232 | } |
| 233 | |
| 234 | |
| 235 | static void ReadL18TestPattern(u32 addr_lo) |
| 236 | { |
| 237 | // set fs and use fs prefix to access the mem |
| 238 | __asm__ volatile ( |
| 239 | "outb %%al, $0xed\n\t" /* _EXECFENCE */ |
| 240 | "movl %%fs:-128(%%esi), %%eax\n\t" //TestAddr cache line |
| 241 | "movl %%fs:-64(%%esi), %%eax\n\t" //+1 |
| 242 | "movl %%fs:(%%esi), %%eax\n\t" //+2 |
| 243 | "movl %%fs:64(%%esi), %%eax\n\t" //+3 |
| 244 | |
| 245 | "movl %%fs:-128(%%edi), %%eax\n\t" //+4 |
| 246 | "movl %%fs:-64(%%edi), %%eax\n\t" //+5 |
| 247 | "movl %%fs:(%%edi), %%eax\n\t" //+6 |
| 248 | "movl %%fs:64(%%edi), %%eax\n\t" //+7 |
| 249 | |
| 250 | "movl %%fs:-128(%%ebx), %%eax\n\t" //+8 |
| 251 | "movl %%fs:-64(%%ebx), %%eax\n\t" //+9 |
| 252 | "movl %%fs:(%%ebx), %%eax\n\t" //+10 |
| 253 | "movl %%fs:64(%%ebx), %%eax\n\t" //+11 |
| 254 | |
| 255 | "movl %%fs:-128(%%ecx), %%eax\n\t" //+12 |
| 256 | "movl %%fs:-64(%%ecx), %%eax\n\t" //+13 |
| 257 | "movl %%fs:(%%ecx), %%eax\n\t" //+14 |
| 258 | "movl %%fs:64(%%ecx), %%eax\n\t" //+15 |
| 259 | |
| 260 | "movl %%fs:-128(%%edx), %%eax\n\t" //+16 |
| 261 | "movl %%fs:-64(%%edx), %%eax\n\t" //+17 |
| 262 | "mfence\n\t" |
| 263 | |
| 264 | :: "a"(0), "b" (addr_lo+128+8*64), "c" (addr_lo+128+12*64), |
| 265 | "d" (addr_lo +128+16*64), "S"(addr_lo+128), |
| 266 | "D"(addr_lo+128+4*64) |
| 267 | ); |
| 268 | |
| 269 | } |
| 270 | |
| 271 | |
| 272 | static void ReadL9TestPattern(u32 addr_lo) |
| 273 | { |
| 274 | |
| 275 | // set fs and use fs prefix to access the mem |
| 276 | __asm__ volatile ( |
| 277 | "outb %%al, $0xed\n\t" /* _EXECFENCE */ |
| 278 | |
| 279 | "movl %%fs:-128(%%ecx), %%eax\n\t" //TestAddr cache line |
| 280 | "movl %%fs:-64(%%ecx), %%eax\n\t" //+1 |
| 281 | "movl %%fs:(%%ecx), %%eax\n\t" //+2 |
| 282 | "movl %%fs:64(%%ecx), %%eax\n\t" //+3 |
| 283 | |
| 284 | "movl %%fs:-128(%%edx), %%eax\n\t" //+4 |
| 285 | "movl %%fs:-64(%%edx), %%eax\n\t" //+5 |
| 286 | "movl %%fs:(%%edx), %%eax\n\t" //+6 |
| 287 | "movl %%fs:64(%%edx), %%eax\n\t" //+7 |
| 288 | |
| 289 | "movl %%fs:-128(%%ebx), %%eax\n\t" //+8 |
| 290 | "mfence\n\t" |
| 291 | |
| 292 | :: "a"(0), "b" (addr_lo+128+8*64), "c"(addr_lo+128), |
| 293 | "d"(addr_lo+128+4*64) |
| 294 | ); |
| 295 | |
| 296 | } |
| 297 | |
| 298 | |
| 299 | static void ReadMaxRdLat1CLTestPattern_D(u32 addr) |
| 300 | { |
| 301 | SetUpperFSbase(addr); |
| 302 | |
| 303 | __asm__ volatile ( |
| 304 | "outb %%al, $0xed\n\t" /* _EXECFENCE */ |
| 305 | "movl %%fs:-128(%%esi), %%eax\n\t" //TestAddr cache line |
| 306 | "movl %%fs:-64(%%esi), %%eax\n\t" //+1 |
| 307 | "movl %%fs:(%%esi), %%eax\n\t" //+2 |
| 308 | "mfence\n\t" |
| 309 | :: "a"(0), "S"((addr<<8)+128) |
| 310 | ); |
| 311 | |
| 312 | } |
| 313 | |
| 314 | |
Myles Watson | 075fbe8 | 2010-04-15 05:19:29 +0000 | [diff] [blame] | 315 | static void WriteMaxRdLat1CLTestPattern_D(u32 buf, u32 addr) |
Marc Jones | 8ae8c88 | 2007-12-19 01:32:08 +0000 | [diff] [blame] | 316 | { |
| 317 | SetUpperFSbase(addr); |
| 318 | |
| 319 | __asm__ volatile ( |
| 320 | "outb %%al, $0xed\n\t" /* _EXECFENCE */ |
| 321 | "1:\n\t" |
| 322 | "movdqa (%3), %%xmm0\n\t" |
| 323 | "movntdq %%xmm0, %%fs:(%0)\n\t" /* xmm0 is 128 bit */ |
| 324 | "addl %1, %0\n\t" |
| 325 | "addl %1, %3\n\t" |
| 326 | "loop 1b\n\t" |
| 327 | "mfence\n\t" |
| 328 | |
| 329 | :: "a" (addr<<8), "d" (16), "c" (3 * 4), "b"(buf) |
| 330 | ); |
| 331 | } |
| 332 | |
| 333 | |
| 334 | static void FlushMaxRdLatTestPattern_D(u32 addr) |
| 335 | { |
| 336 | /* Flush a pattern of 72 bit times (per DQ) from cache. |
| 337 | * This procedure is used to ensure cache miss on the next read training. |
| 338 | */ |
| 339 | |
| 340 | SetUpperFSbase(addr); |
| 341 | |
| 342 | __asm__ volatile ( |
| 343 | "outb %%al, $0xed\n\t" /* _EXECFENCE */ |
| 344 | "clflush %%fs:-128(%%esi)\n\t" //TestAddr cache line |
| 345 | "clflush %%fs:-64(%%esi)\n\t" //+1 |
| 346 | "clflush %%fs:(%%esi)\n\t" //+2 |
| 347 | "mfence\n\t" |
| 348 | |
| 349 | :: "S"((addr<<8)+128) |
| 350 | ); |
| 351 | } |
| 352 | |
| 353 | |
Myles Watson | 075fbe8 | 2010-04-15 05:19:29 +0000 | [diff] [blame] | 354 | static u32 stream_to_int(u8 const *p) |
Marc Jones | 8ae8c88 | 2007-12-19 01:32:08 +0000 | [diff] [blame] | 355 | { |
| 356 | int i; |
| 357 | u32 val; |
| 358 | u32 valx; |
| 359 | |
| 360 | val = 0; |
| 361 | |
| 362 | for(i=3; i>=0; i--) { |
| 363 | val <<= 8; |
| 364 | valx = *(p+i); |
| 365 | val |= valx; |
| 366 | } |
| 367 | |
| 368 | return val; |
| 369 | } |
| 370 | |
| 371 | |
Stefan Reinauer | d653211 | 2010-04-16 00:31:44 +0000 | [diff] [blame] | 372 | #ifdef UNUSED_CODE |
Myles Watson | 075fbe8 | 2010-04-15 05:19:29 +0000 | [diff] [blame] | 373 | static void oemSet_NB32(u32 addr, u32 val, u8 *valid) |
Marc Jones | 8ae8c88 | 2007-12-19 01:32:08 +0000 | [diff] [blame] | 374 | { |
| 375 | } |
| 376 | |
| 377 | |
Myles Watson | 075fbe8 | 2010-04-15 05:19:29 +0000 | [diff] [blame] | 378 | static u32 oemGet_NB32(u32 addr, u8 *valid) |
Marc Jones | 8ae8c88 | 2007-12-19 01:32:08 +0000 | [diff] [blame] | 379 | { |
| 380 | *valid = 0; |
| 381 | return 0xffffffff; |
| 382 | } |
Stefan Reinauer | d653211 | 2010-04-16 00:31:44 +0000 | [diff] [blame] | 383 | #endif |
Marc Jones | 8ae8c88 | 2007-12-19 01:32:08 +0000 | [diff] [blame] | 384 | |
| 385 | |
Myles Watson | 075fbe8 | 2010-04-15 05:19:29 +0000 | [diff] [blame] | 386 | static u8 oemNodePresent_D(u8 Node, u8 *ret) |
Marc Jones | 8ae8c88 | 2007-12-19 01:32:08 +0000 | [diff] [blame] | 387 | { |
| 388 | *ret = 0; |
| 389 | return 0; |
| 390 | } |