diff options
Diffstat (limited to 'include/asm-x86/xcr.h')
-rw-r--r-- | include/asm-x86/xcr.h | 49 |
1 files changed, 0 insertions, 49 deletions
diff --git a/include/asm-x86/xcr.h b/include/asm-x86/xcr.h deleted file mode 100644 index f2cba4e79a23..000000000000 --- a/include/asm-x86/xcr.h +++ /dev/null | |||
@@ -1,49 +0,0 @@ | |||
1 | /* -*- linux-c -*- ------------------------------------------------------- * | ||
2 | * | ||
3 | * Copyright 2008 rPath, Inc. - All Rights Reserved | ||
4 | * | ||
5 | * This file is part of the Linux kernel, and is made available under | ||
6 | * the terms of the GNU General Public License version 2 or (at your | ||
7 | * option) any later version; incorporated herein by reference. | ||
8 | * | ||
9 | * ----------------------------------------------------------------------- */ | ||
10 | |||
11 | /* | ||
12 | * asm-x86/xcr.h | ||
13 | * | ||
14 | * Definitions for the eXtended Control Register instructions | ||
15 | */ | ||
16 | |||
17 | #ifndef _ASM_X86_XCR_H | ||
18 | #define _ASM_X86_XCR_H | ||
19 | |||
20 | #define XCR_XFEATURE_ENABLED_MASK 0x00000000 | ||
21 | |||
22 | #ifdef __KERNEL__ | ||
23 | # ifndef __ASSEMBLY__ | ||
24 | |||
25 | #include <linux/types.h> | ||
26 | |||
27 | static inline u64 xgetbv(u32 index) | ||
28 | { | ||
29 | u32 eax, edx; | ||
30 | |||
31 | asm volatile(".byte 0x0f,0x01,0xd0" /* xgetbv */ | ||
32 | : "=a" (eax), "=d" (edx) | ||
33 | : "c" (index)); | ||
34 | return eax + ((u64)edx << 32); | ||
35 | } | ||
36 | |||
37 | static inline void xsetbv(u32 index, u64 value) | ||
38 | { | ||
39 | u32 eax = value; | ||
40 | u32 edx = value >> 32; | ||
41 | |||
42 | asm volatile(".byte 0x0f,0x01,0xd1" /* xsetbv */ | ||
43 | : : "a" (eax), "d" (edx), "c" (index)); | ||
44 | } | ||
45 | |||
46 | # endif /* __ASSEMBLY__ */ | ||
47 | #endif /* __KERNEL__ */ | ||
48 | |||
49 | #endif /* _ASM_X86_XCR_H */ | ||