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b4531e86 AK |
1 | #ifndef __ASM_I386_PROCESSOR_FLAGS_H |
2 | #define __ASM_I386_PROCESSOR_FLAGS_H | |
3 | /* Various flags defined: can be included from assembler. */ | |
4 | ||
5 | /* | |
6 | * EFLAGS bits | |
7 | */ | |
8 | #define X86_EFLAGS_CF 0x00000001 /* Carry Flag */ | |
9 | #define X86_EFLAGS_PF 0x00000004 /* Parity Flag */ | |
10 | #define X86_EFLAGS_AF 0x00000010 /* Auxillary carry Flag */ | |
11 | #define X86_EFLAGS_ZF 0x00000040 /* Zero Flag */ | |
12 | #define X86_EFLAGS_SF 0x00000080 /* Sign Flag */ | |
13 | #define X86_EFLAGS_TF 0x00000100 /* Trap Flag */ | |
14 | #define X86_EFLAGS_IF 0x00000200 /* Interrupt Flag */ | |
15 | #define X86_EFLAGS_DF 0x00000400 /* Direction Flag */ | |
16 | #define X86_EFLAGS_OF 0x00000800 /* Overflow Flag */ | |
17 | #define X86_EFLAGS_IOPL 0x00003000 /* IOPL mask */ | |
18 | #define X86_EFLAGS_NT 0x00004000 /* Nested Task */ | |
19 | #define X86_EFLAGS_RF 0x00010000 /* Resume Flag */ | |
20 | #define X86_EFLAGS_VM 0x00020000 /* Virtual Mode */ | |
21 | #define X86_EFLAGS_AC 0x00040000 /* Alignment Check */ | |
22 | #define X86_EFLAGS_VIF 0x00080000 /* Virtual Interrupt Flag */ | |
23 | #define X86_EFLAGS_VIP 0x00100000 /* Virtual Interrupt Pending */ | |
24 | #define X86_EFLAGS_ID 0x00200000 /* CPUID detection flag */ | |
25 | ||
4bc5aa91 PA |
26 | /* |
27 | * Basic CPU control in CR0 | |
28 | */ | |
29 | #define X86_CR0_PE 0x00000001 /* Protection Enable */ | |
30 | #define X86_CR0_MP 0x00000002 /* Monitor Coprocessor */ | |
31 | #define X86_CR0_EM 0x00000004 /* Emulation */ | |
32 | #define X86_CR0_TS 0x00000008 /* Task Switched */ | |
33 | #define X86_CR0_ET 0x00000010 /* Extension Type */ | |
34 | #define X86_CR0_NE 0x00000020 /* Numeric Error */ | |
35 | #define X86_CR0_WP 0x00010000 /* Write Protect */ | |
36 | #define X86_CR0_AM 0x00040000 /* Alignment Mask */ | |
37 | #define X86_CR0_NW 0x20000000 /* Not Write-through */ | |
38 | #define X86_CR0_CD 0x40000000 /* Cache Disable */ | |
39 | #define X86_CR0_PG 0x80000000 /* Paging */ | |
40 | ||
41 | /* | |
42 | * Paging options in CR3 | |
43 | */ | |
44 | #define X86_CR3_PWT 0x00000008 /* Page Write Through */ | |
45 | #define X86_CR3_PCD 0x00000010 /* Page Cache Disable */ | |
46 | ||
47 | /* | |
48 | * Intel CPU features in CR4 | |
49 | */ | |
50 | #define X86_CR4_VME 0x00000001 /* enable vm86 extensions */ | |
51 | #define X86_CR4_PVI 0x00000002 /* virtual interrupts flag enable */ | |
52 | #define X86_CR4_TSD 0x00000004 /* disable time stamp at ipl 3 */ | |
53 | #define X86_CR4_DE 0x00000008 /* enable debugging extensions */ | |
54 | #define X86_CR4_PSE 0x00000010 /* enable page size extensions */ | |
55 | #define X86_CR4_PAE 0x00000020 /* enable physical address extensions */ | |
56 | #define X86_CR4_MCE 0x00000040 /* Machine check enable */ | |
57 | #define X86_CR4_PGE 0x00000080 /* enable global pages */ | |
58 | #define X86_CR4_PCE 0x00000100 /* enable performance counters at ipl 3 */ | |
59 | #define X86_CR4_OSFXSR 0x00000200 /* enable fast FPU save and restore */ | |
60 | #define X86_CR4_OSXMMEXCPT 0x00000400 /* enable unmasked SSE exceptions */ | |
61 | #define X86_CR4_VMXE 0x00002000 /* enable VMX virtualization */ | |
62 | ||
63 | /* | |
64 | * x86-64 Task Priority Register, CR8 | |
65 | */ | |
66 | #define X86_CR8_TPR 0x00000007 /* task priority register */ | |
67 | ||
68 | /* | |
69 | * AMD and Transmeta use MSRs for configuration; see <asm/msr-index.h> | |
70 | */ | |
71 | ||
72 | /* | |
73 | * NSC/Cyrix CPU configuration register indexes | |
74 | */ | |
75 | #define CX86_PCR0 0x20 | |
76 | #define CX86_GCR 0xb8 | |
77 | #define CX86_CCR0 0xc0 | |
78 | #define CX86_CCR1 0xc1 | |
79 | #define CX86_CCR2 0xc2 | |
80 | #define CX86_CCR3 0xc3 | |
81 | #define CX86_CCR4 0xe8 | |
82 | #define CX86_CCR5 0xe9 | |
83 | #define CX86_CCR6 0xea | |
84 | #define CX86_CCR7 0xeb | |
85 | #define CX86_PCR1 0xf0 | |
86 | #define CX86_DIR0 0xfe | |
87 | #define CX86_DIR1 0xff | |
88 | #define CX86_ARR_BASE 0xc4 | |
89 | #define CX86_RCR_BASE 0xdc | |
90 | ||
b4531e86 | 91 | #endif /* __ASM_I386_PROCESSOR_FLAGS_H */ |