1*54579826SDavid Howells /* 2*54579826SDavid Howells * psr.h: This file holds the macros for masking off various parts of 3*54579826SDavid Howells * the processor status register on the Sparc. This is valid 4*54579826SDavid Howells * for Version 8. On the V9 this is renamed to the PSTATE 5*54579826SDavid Howells * register and its members are accessed as fields like 6*54579826SDavid Howells * PSTATE.PRIV for the current CPU privilege level. 7*54579826SDavid Howells * 8*54579826SDavid Howells * Copyright (C) 1994 David S. Miller (davem@caip.rutgers.edu) 9*54579826SDavid Howells */ 10*54579826SDavid Howells 11*54579826SDavid Howells #ifndef _UAPI__LINUX_SPARC_PSR_H 12*54579826SDavid Howells #define _UAPI__LINUX_SPARC_PSR_H 13*54579826SDavid Howells 14*54579826SDavid Howells /* The Sparc PSR fields are laid out as the following: 15*54579826SDavid Howells * 16*54579826SDavid Howells * ------------------------------------------------------------------------ 17*54579826SDavid Howells * | impl | vers | icc | resv | EC | EF | PIL | S | PS | ET | CWP | 18*54579826SDavid Howells * | 31-28 | 27-24 | 23-20 | 19-14 | 13 | 12 | 11-8 | 7 | 6 | 5 | 4-0 | 19*54579826SDavid Howells * ------------------------------------------------------------------------ 20*54579826SDavid Howells */ 21*54579826SDavid Howells #define PSR_CWP 0x0000001f /* current window pointer */ 22*54579826SDavid Howells #define PSR_ET 0x00000020 /* enable traps field */ 23*54579826SDavid Howells #define PSR_PS 0x00000040 /* previous privilege level */ 24*54579826SDavid Howells #define PSR_S 0x00000080 /* current privilege level */ 25*54579826SDavid Howells #define PSR_PIL 0x00000f00 /* processor interrupt level */ 26*54579826SDavid Howells #define PSR_EF 0x00001000 /* enable floating point */ 27*54579826SDavid Howells #define PSR_EC 0x00002000 /* enable co-processor */ 28*54579826SDavid Howells #define PSR_SYSCALL 0x00004000 /* inside of a syscall */ 29*54579826SDavid Howells #define PSR_LE 0x00008000 /* SuperSparcII little-endian */ 30*54579826SDavid Howells #define PSR_ICC 0x00f00000 /* integer condition codes */ 31*54579826SDavid Howells #define PSR_C 0x00100000 /* carry bit */ 32*54579826SDavid Howells #define PSR_V 0x00200000 /* overflow bit */ 33*54579826SDavid Howells #define PSR_Z 0x00400000 /* zero bit */ 34*54579826SDavid Howells #define PSR_N 0x00800000 /* negative bit */ 35*54579826SDavid Howells #define PSR_VERS 0x0f000000 /* cpu-version field */ 36*54579826SDavid Howells #define PSR_IMPL 0xf0000000 /* cpu-implementation field */ 37*54579826SDavid Howells 38*54579826SDavid Howells #define PSR_VERS_SHIFT 24 39*54579826SDavid Howells #define PSR_IMPL_SHIFT 28 40*54579826SDavid Howells #define PSR_VERS_SHIFTED_MASK 0xf 41*54579826SDavid Howells #define PSR_IMPL_SHIFTED_MASK 0xf 42*54579826SDavid Howells 43*54579826SDavid Howells #define PSR_IMPL_TI 0x4 44*54579826SDavid Howells #define PSR_IMPL_LEON 0xf 45*54579826SDavid Howells 46*54579826SDavid Howells 47*54579826SDavid Howells #endif /* _UAPI__LINUX_SPARC_PSR_H */ 48