diff options
| author | sigsegv7 <ian@vegaa.systems> | 2023-09-15 01:26:54 -0400 |
|---|---|---|
| committer | sigsegv7 <ian@vegaa.systems> | 2023-09-15 01:26:54 -0400 |
| commit | bc0573aa739acc5cda0bc9a99c04068ff7e09887 (patch) | |
| tree | cd824aa8a8d399cf1c8de6371ed9ace995a990d1 | |
| parent | 9a7e4e9e0a8c3b3a811c377d6be63a7ef9557c53 (diff) | |
kernel/amd64: Add cpuid.h
Signed-off-by: sigsegv7 <ian@vegaa.systems>
| -rw-r--r-- | sys/include/arch/amd64/cpuid.h | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/sys/include/arch/amd64/cpuid.h b/sys/include/arch/amd64/cpuid.h new file mode 100644 index 0000000..9420477 --- /dev/null +++ b/sys/include/arch/amd64/cpuid.h @@ -0,0 +1,40 @@ +/* + * Copyright (c) 2023 Ian Marco Moffett and the VegaOS team. + * All rights reserved. + * + * 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. Neither the name of VegaOS nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT OWNER 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 _AMD64_CPUID_H_ +#define _AMD64_CPUID_H_ + +#include <sys/cdefs.h> + +#define __CPUID(level, a, b, c, d) \ + __ASMV("cpuid\n\t" \ + : "=a" (a), "=b" (b), "=c" (c), "=d" (d) \ + : "0" (level)) + +#endif /* _AMD64_CPUID_H_ */ |