root/arch/x86/include/uapi/asm/processor-flags.h

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INCLUDED FROM

#ifndef _UAPI_ASM_X86_PROCESSOR_FLAGS_H
#define _UAPI_ASM_X86_PROCESSOR_FLAGS_H
/* Various flags defined: can be included from assembler. */

#include <linux/const.h>

/*
 * EFLAGS bits
 */
#define X86_EFLAGS_CF_BIT       0 /* Carry Flag */
#define X86_EFLAGS_CF           _BITUL(X86_EFLAGS_CF_BIT)
#define X86_EFLAGS_FIXED_BIT    1 /* Bit 1 - always on */
#define X86_EFLAGS_FIXED        _BITUL(X86_EFLAGS_FIXED_BIT)
#define X86_EFLAGS_PF_BIT       2 /* Parity Flag */
#define X86_EFLAGS_PF           _BITUL(X86_EFLAGS_PF_BIT)
#define X86_EFLAGS_AF_BIT       4 /* Auxiliary carry Flag */
#define X86_EFLAGS_AF           _BITUL(X86_EFLAGS_AF_BIT)
#define X86_EFLAGS_ZF_BIT       6 /* Zero Flag */
#define X86_EFLAGS_ZF           _BITUL(X86_EFLAGS_ZF_BIT)
#define X86_EFLAGS_SF_BIT       7 /* Sign Flag */
#define X86_EFLAGS_SF           _BITUL(X86_EFLAGS_SF_BIT)
#define X86_EFLAGS_TF_BIT       8 /* Trap Flag */
#define X86_EFLAGS_TF           _BITUL(X86_EFLAGS_TF_BIT)
#define X86_EFLAGS_IF_BIT       9 /* Interrupt Flag */
#define X86_EFLAGS_IF           _BITUL(X86_EFLAGS_IF_BIT)
#define X86_EFLAGS_DF_BIT       10 /* Direction Flag */
#define X86_EFLAGS_DF           _BITUL(X86_EFLAGS_DF_BIT)
#define X86_EFLAGS_OF_BIT       11 /* Overflow Flag */
#define X86_EFLAGS_OF           _BITUL(X86_EFLAGS_OF_BIT)
#define X86_EFLAGS_IOPL_BIT     12 /* I/O Privilege Level (2 bits) */
#define X86_EFLAGS_IOPL         (_AC(3,UL) << X86_EFLAGS_IOPL_BIT)
#define X86_EFLAGS_NT_BIT       14 /* Nested Task */
#define X86_EFLAGS_NT           _BITUL(X86_EFLAGS_NT_BIT)
#define X86_EFLAGS_RF_BIT       16 /* Resume Flag */
#define X86_EFLAGS_RF           _BITUL(X86_EFLAGS_RF_BIT)
#define X86_EFLAGS_VM_BIT       17 /* Virtual Mode */
#define X86_EFLAGS_VM           _BITUL(X86_EFLAGS_VM_BIT)
#define X86_EFLAGS_AC_BIT       18 /* Alignment Check/Access Control */
#define X86_EFLAGS_AC           _BITUL(X86_EFLAGS_AC_BIT)
#define X86_EFLAGS_AC_BIT       18 /* Alignment Check/Access Control */
#define X86_EFLAGS_AC           _BITUL(X86_EFLAGS_AC_BIT)
#define X86_EFLAGS_VIF_BIT      19 /* Virtual Interrupt Flag */
#define X86_EFLAGS_VIF          _BITUL(X86_EFLAGS_VIF_BIT)
#define X86_EFLAGS_VIP_BIT      20 /* Virtual Interrupt Pending */
#define X86_EFLAGS_VIP          _BITUL(X86_EFLAGS_VIP_BIT)
#define X86_EFLAGS_ID_BIT       21 /* CPUID detection */
#define X86_EFLAGS_ID           _BITUL(X86_EFLAGS_ID_BIT)

/*
 * Basic CPU control in CR0
 */
#define X86_CR0_PE_BIT          0 /* Protection Enable */
#define X86_CR0_PE              _BITUL(X86_CR0_PE_BIT)
#define X86_CR0_MP_BIT          1 /* Monitor Coprocessor */
#define X86_CR0_MP              _BITUL(X86_CR0_MP_BIT)
#define X86_CR0_EM_BIT          2 /* Emulation */
#define X86_CR0_EM              _BITUL(X86_CR0_EM_BIT)
#define X86_CR0_TS_BIT          3 /* Task Switched */
#define X86_CR0_TS              _BITUL(X86_CR0_TS_BIT)
#define X86_CR0_ET_BIT          4 /* Extension Type */
#define X86_CR0_ET              _BITUL(X86_CR0_ET_BIT)
#define X86_CR0_NE_BIT          5 /* Numeric Error */
#define X86_CR0_NE              _BITUL(X86_CR0_NE_BIT)
#define X86_CR0_WP_BIT          16 /* Write Protect */
#define X86_CR0_WP              _BITUL(X86_CR0_WP_BIT)
#define X86_CR0_AM_BIT          18 /* Alignment Mask */
#define X86_CR0_AM              _BITUL(X86_CR0_AM_BIT)
#define X86_CR0_NW_BIT          29 /* Not Write-through */
#define X86_CR0_NW              _BITUL(X86_CR0_NW_BIT)
#define X86_CR0_CD_BIT          30 /* Cache Disable */
#define X86_CR0_CD              _BITUL(X86_CR0_CD_BIT)
#define X86_CR0_PG_BIT          31 /* Paging */
#define X86_CR0_PG              _BITUL(X86_CR0_PG_BIT)

/*
 * Paging options in CR3
 */
#define X86_CR3_PWT_BIT         3 /* Page Write Through */
#define X86_CR3_PWT             _BITUL(X86_CR3_PWT_BIT)
#define X86_CR3_PCD_BIT         4 /* Page Cache Disable */
#define X86_CR3_PCD             _BITUL(X86_CR3_PCD_BIT)
#define X86_CR3_PCID_MASK       _AC(0x00000fff,UL) /* PCID Mask */

/*
 * Intel CPU features in CR4
 */
#define X86_CR4_VME_BIT         0 /* enable vm86 extensions */
#define X86_CR4_VME             _BITUL(X86_CR4_VME_BIT)
#define X86_CR4_PVI_BIT         1 /* virtual interrupts flag enable */
#define X86_CR4_PVI             _BITUL(X86_CR4_PVI_BIT)
#define X86_CR4_TSD_BIT         2 /* disable time stamp at ipl 3 */
#define X86_CR4_TSD             _BITUL(X86_CR4_TSD_BIT)
#define X86_CR4_DE_BIT          3 /* enable debugging extensions */
#define X86_CR4_DE              _BITUL(X86_CR4_DE_BIT)
#define X86_CR4_PSE_BIT         4 /* enable page size extensions */
#define X86_CR4_PSE             _BITUL(X86_CR4_PSE_BIT)
#define X86_CR4_PAE_BIT         5 /* enable physical address extensions */
#define X86_CR4_PAE             _BITUL(X86_CR4_PAE_BIT)
#define X86_CR4_MCE_BIT         6 /* Machine check enable */
#define X86_CR4_MCE             _BITUL(X86_CR4_MCE_BIT)
#define X86_CR4_PGE_BIT         7 /* enable global pages */
#define X86_CR4_PGE             _BITUL(X86_CR4_PGE_BIT)
#define X86_CR4_PCE_BIT         8 /* enable performance counters at ipl 3 */
#define X86_CR4_PCE             _BITUL(X86_CR4_PCE_BIT)
#define X86_CR4_OSFXSR_BIT      9 /* enable fast FPU save and restore */
#define X86_CR4_OSFXSR          _BITUL(X86_CR4_OSFXSR_BIT)
#define X86_CR4_OSXMMEXCPT_BIT  10 /* enable unmasked SSE exceptions */
#define X86_CR4_OSXMMEXCPT      _BITUL(X86_CR4_OSXMMEXCPT_BIT)
#define X86_CR4_VMXE_BIT        13 /* enable VMX virtualization */
#define X86_CR4_VMXE            _BITUL(X86_CR4_VMXE_BIT)
#define X86_CR4_SMXE_BIT        14 /* enable safer mode (TXT) */
#define X86_CR4_SMXE            _BITUL(X86_CR4_SMXE_BIT)
#define X86_CR4_FSGSBASE_BIT    16 /* enable RDWRFSGS support */
#define X86_CR4_FSGSBASE        _BITUL(X86_CR4_FSGSBASE_BIT)
#define X86_CR4_PCIDE_BIT       17 /* enable PCID support */
#define X86_CR4_PCIDE           _BITUL(X86_CR4_PCIDE_BIT)
#define X86_CR4_OSXSAVE_BIT     18 /* enable xsave and xrestore */
#define X86_CR4_OSXSAVE         _BITUL(X86_CR4_OSXSAVE_BIT)
#define X86_CR4_SMEP_BIT        20 /* enable SMEP support */
#define X86_CR4_SMEP            _BITUL(X86_CR4_SMEP_BIT)
#define X86_CR4_SMAP_BIT        21 /* enable SMAP support */
#define X86_CR4_SMAP            _BITUL(X86_CR4_SMAP_BIT)

/*
 * x86-64 Task Priority Register, CR8
 */
#define X86_CR8_TPR             _AC(0x0000000f,UL) /* task priority register */

/*
 * AMD and Transmeta use MSRs for configuration; see <asm/msr-index.h>
 */

/*
 *      NSC/Cyrix CPU configuration register indexes
 */
#define CX86_PCR0       0x20
#define CX86_GCR        0xb8
#define CX86_CCR0       0xc0
#define CX86_CCR1       0xc1
#define CX86_CCR2       0xc2
#define CX86_CCR3       0xc3
#define CX86_CCR4       0xe8
#define CX86_CCR5       0xe9
#define CX86_CCR6       0xea
#define CX86_CCR7       0xeb
#define CX86_PCR1       0xf0
#define CX86_DIR0       0xfe
#define CX86_DIR1       0xff
#define CX86_ARR_BASE   0xc4
#define CX86_RCR_BASE   0xdc


#endif /* _UAPI_ASM_X86_PROCESSOR_FLAGS_H */
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