Rafael Espindola | 6d387ae | 2011-11-28 20:05:27 +0000 | [diff] [blame] | 1 | /*===---- cpuid.h - X86 cpu model detection --------------------------------=== |
Rafael Espindola | b816276 | 2011-11-26 20:53:19 +0000 | [diff] [blame] | 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 | |
Rafael Espindola | 1376ba9 | 2011-11-27 15:21:33 +0000 | [diff] [blame] | 24 | #if !(__x86_64__ || __i386__) |
| 25 | #error this header is for x86 only |
| 26 | #endif |
| 27 | |
Rafael Espindola | b816276 | 2011-11-26 20:53:19 +0000 | [diff] [blame] | 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 | } |