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/* * psr.h: This file holds the macros for masking off various parts of * the processor status register on the Sparc. This is valid * for Version 8. On the V9 this is renamed to the PSTATE * register and its members are accessed as fields like * PSTATE.PRIV for the current CPU privilege level. * * Copyright (C) 1994 David S. Miller (davem@caip.rutgers.edu) */ #ifndef _UAPI__LINUX_SPARC_PSR_H #define _UAPI__LINUX_SPARC_PSR_H /* The Sparc PSR fields are laid out as the following: * * ------------------------------------------------------------------------ * | impl | vers | icc | resv | EC | EF | PIL | S | PS | ET | CWP | * | 31-28 | 27-24 | 23-20 | 19-14 | 13 | 12 | 11-8 | 7 | 6 | 5 | 4-0 | * ------------------------------------------------------------------------ */ #define PSR_CWP 0x0000001f /* current window pointer */ #define PSR_ET 0x00000020 /* enable traps field */ #define PSR_PS 0x00000040 /* previous privilege level */ #define PSR_S 0x00000080 /* current privilege level */ #define PSR_PIL 0x00000f00 /* processor interrupt level */ #define PSR_EF 0x00001000 /* enable floating point */ #define PSR_EC 0x00002000 /* enable co-processor */ #define PSR_SYSCALL 0x00004000 /* inside of a syscall */ #define PSR_LE 0x00008000 /* SuperSparcII little-endian */ #define PSR_ICC 0x00f00000 /* integer condition codes */ #define PSR_C 0x00100000 /* carry bit */ #define PSR_V 0x00200000 /* overflow bit */ #define PSR_Z 0x00400000 /* zero bit */ #define PSR_N 0x00800000 /* negative bit */ #define PSR_VERS 0x0f000000 /* cpu-version field */ #define PSR_IMPL 0xf0000000 /* cpu-implementation field */ #define PSR_VERS_SHIFT 24 #define PSR_IMPL_SHIFT 28 #define PSR_VERS_SHIFTED_MASK 0xf #define PSR_IMPL_SHIFTED_MASK 0xf #define PSR_IMPL_TI 0x4 #define PSR_IMPL_LEON 0xf #endif /* _UAPI__LINUX_SPARC_PSR_H */