| 1 | /*
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| 2 | * Copyright (C) 2001-2004 Jakub Jermar
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| 3 | * All rights reserved.
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| 4 | *
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| 5 | * Redistribution and use in source and binary forms, with or without
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| 6 | * modification, are permitted provided that the following conditions
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| 7 | * are met:
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| 8 | *
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| 9 | * - Redistributions of source code must retain the above copyright
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| 10 | * notice, this list of conditions and the following disclaimer.
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| 11 | * - Redistributions in binary form must reproduce the above copyright
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| 12 | * notice, this list of conditions and the following disclaimer in the
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| 13 | * documentation and/or other materials provided with the distribution.
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| 14 | * - The name of the author may not be used to endorse or promote products
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| 15 | * derived from this software without specific prior written permission.
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| 16 | *
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| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 27 | */
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| 28 |
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| 29 | #ifndef __amd64_CPU_H__
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| 30 | #define __amd64_CPU_H__
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| 31 |
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| 32 | #define RFLAGS_RF (1 << 16)
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| 33 |
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| 34 | #define EFER_MSR_NUM 0xc0000080
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| 35 | #define AMD_SCE_FLAG 0
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| 36 | #define AMD_LME_FLAG 8
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| 37 | #define AMD_LMA_FLAG 10
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| 38 | #define AMD_FFXSR_FLAG 14
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| 39 | #define AMD_NXE_FLAG 11
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| 40 |
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| 41 | /* MSR registers */
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| 42 | #define AMD_MSR_STAR 0xc0000081
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| 43 | #define AMD_MSR_LSTAR 0xc0000082
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| 44 | #define AMD_MSR_SFMASK 0xc0000084
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| 45 | #define AMD_MSR_FS 0xc0000100
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| 46 | #define AMD_MSR_GS 0xc0000101
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| 47 |
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| 48 | #ifndef __ASM__
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| 49 |
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| 50 | #include <typedefs.h>
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| 51 | #include <arch/pm.h>
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| 52 |
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| 53 | struct cpu_arch {
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| 54 | int vendor;
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| 55 | int family;
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| 56 | int model;
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| 57 | int stepping;
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| 58 | struct tss *tss;
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| 59 | };
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| 60 |
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| 61 | struct star_msr {
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| 62 |
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| 63 | };
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| 64 |
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| 65 | struct lstar_msr {
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| 66 |
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| 67 | };
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| 68 |
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| 69 | extern void set_efer_flag(int flag);
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| 70 | extern __u64 read_efer_flag(void);
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| 71 | void cpu_setup_fpu(void);
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| 72 |
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| 73 | #endif /* __ASM__ */
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| 74 |
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| 75 | #endif
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