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| 1 /*===---- cpuid.h - X86 cpu model detection --------------------------------=== | |
| 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 | |
| 24 #if !(__x86_64__ || __i386__) | |
| 25 #error this header is for x86 only | |
| 26 #endif | |
| 27 | |
| 28 static inline int __get_cpuid (unsigned int level, unsigned int *eax, | |
| 29 unsigned int *ebx, unsigned int *ecx, | |
| 30 unsigned int *edx) { | |
| 31 __asm("cpuid" : "=a"(*eax), "=b" (*ebx), "=c"(*ecx), "=d"(*edx) : "0"(level)
); | |
| 32 return 1; | |
| 33 } | |
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