| /* |
| * |
| * Copyright 2018 Google Inc. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * 3. The name of the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
| * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
| * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| */ |
| |
| #ifndef _ARCH_CPUID_H |
| #define _ARCH_CPUID_H |
| |
| #define cpuid(fn, eax, ebx, ecx, edx) \ |
| asm("cpuid" : "=a"(eax), "=b"(ebx), "=c"(ecx), "=d"(edx) : "0"(fn)) |
| |
| #define _declare_cpuid(reg) \ |
| static inline unsigned int cpuid_##reg(unsigned int fn) \ |
| { \ |
| unsigned int eax, ebx, ecx, edx; \ |
| cpuid(fn, eax, ebx, ecx, edx); \ |
| return reg; \ |
| } |
| |
| _declare_cpuid(eax) |
| _declare_cpuid(ebx) |
| _declare_cpuid(ecx) |
| _declare_cpuid(edx) |
| |
| #undef _declare_cpuid |
| |
| #define cpuid_sub_leaf(fn, sub_leaf, eax, ebx, ecx, edx) \ |
| asm("cpuid" : "=a"(eax), "=b"(ebx), "=c"(ecx), "=d"(edx) : "0"(fn), "1"(sub_leaf)) |
| |
| #define _declare_cpuid_sub_leaf(reg) \ |
| static inline unsigned int cpuid_sub_leaf_##reg( \ |
| unsigned int fn, unsigned int sub_leaf) \ |
| { \ |
| unsigned int eax, ebx, ecx, edx; \ |
| cpuid_sub_leaf(fn, sub_leaf, eax, ebx, ecx, edx); \ |
| return reg; \ |
| } |
| |
| _declare_cpuid_sub_leaf(eax) |
| _declare_cpuid_sub_leaf(ebx) |
| _declare_cpuid_sub_leaf(ecx) |
| _declare_cpuid_sub_leaf(edx) |
| |
| #undef _declare_cpuid_sub_leaf |
| |
| static inline unsigned int cpuid_max(void) |
| { |
| return cpuid_eax(0); |
| } |
| |
| static inline unsigned int cpuid_family(void) |
| { |
| const unsigned int eax = cpuid_eax(1); |
| return (eax & 0xff00000) >> (20 - 4) | (eax & 0xf00) >> 8; |
| } |
| |
| static inline unsigned int cpuid_model(void) |
| { |
| const unsigned int eax = cpuid_eax(1); |
| return (eax & 0xf0000) >> (16 - 4) | (eax & 0xf0) >> 4; |
| } |
| |
| enum intel_fam6_model { |
| NEHALEM = 0x25, |
| SANDYBRIDGE = 0x2a, |
| IVYBRIDGE = 0x3a, |
| HASWELL = 0x3c, |
| BROADWELL_U = 0x3d, |
| HASWELL_U = 0x45, |
| HASWELL_GT3E = 0x46, |
| BROADWELL = 0x47, |
| SKYLAKE_U_Y = 0x4e, |
| APOLLOLAKE = 0x5c, |
| SKYLAKE_S_H = 0x5e, |
| KABYLAKE_U_Y = 0x8e, |
| KABYLAKE_S_H = 0x9e, |
| }; |
| |
| #endif |