16f52b16cSGreg Kroah-Hartman /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 254579826SDavid Howells /* 354579826SDavid Howells * psr.h: This file holds the macros for masking off various parts of 454579826SDavid Howells * the processor status register on the Sparc. This is valid 554579826SDavid Howells * for Version 8. On the V9 this is renamed to the PSTATE 654579826SDavid Howells * register and its members are accessed as fields like 754579826SDavid Howells * PSTATE.PRIV for the current CPU privilege level. 854579826SDavid Howells * 954579826SDavid Howells * Copyright (C) 1994 David S. Miller (davem@caip.rutgers.edu) 1054579826SDavid Howells */ 1154579826SDavid Howells 1254579826SDavid Howells #ifndef _UAPI__LINUX_SPARC_PSR_H 1354579826SDavid Howells #define _UAPI__LINUX_SPARC_PSR_H 1454579826SDavid Howells 1554579826SDavid Howells /* The Sparc PSR fields are laid out as the following: 1654579826SDavid Howells * 1754579826SDavid Howells * ------------------------------------------------------------------------ 1854579826SDavid Howells * | impl | vers | icc | resv | EC | EF | PIL | S | PS | ET | CWP | 1954579826SDavid Howells * | 31-28 | 27-24 | 23-20 | 19-14 | 13 | 12 | 11-8 | 7 | 6 | 5 | 4-0 | 2054579826SDavid Howells * ------------------------------------------------------------------------ 2154579826SDavid Howells */ 2254579826SDavid Howells #define PSR_CWP 0x0000001f /* current window pointer */ 2354579826SDavid Howells #define PSR_ET 0x00000020 /* enable traps field */ 2454579826SDavid Howells #define PSR_PS 0x00000040 /* previous privilege level */ 2554579826SDavid Howells #define PSR_S 0x00000080 /* current privilege level */ 2654579826SDavid Howells #define PSR_PIL 0x00000f00 /* processor interrupt level */ 2754579826SDavid Howells #define PSR_EF 0x00001000 /* enable floating point */ 2854579826SDavid Howells #define PSR_EC 0x00002000 /* enable co-processor */ 2954579826SDavid Howells #define PSR_SYSCALL 0x00004000 /* inside of a syscall */ 3054579826SDavid Howells #define PSR_LE 0x00008000 /* SuperSparcII little-endian */ 3154579826SDavid Howells #define PSR_ICC 0x00f00000 /* integer condition codes */ 3254579826SDavid Howells #define PSR_C 0x00100000 /* carry bit */ 3354579826SDavid Howells #define PSR_V 0x00200000 /* overflow bit */ 3454579826SDavid Howells #define PSR_Z 0x00400000 /* zero bit */ 3554579826SDavid Howells #define PSR_N 0x00800000 /* negative bit */ 3654579826SDavid Howells #define PSR_VERS 0x0f000000 /* cpu-version field */ 3754579826SDavid Howells #define PSR_IMPL 0xf0000000 /* cpu-implementation field */ 3854579826SDavid Howells 3954579826SDavid Howells #define PSR_VERS_SHIFT 24 4054579826SDavid Howells #define PSR_IMPL_SHIFT 28 4154579826SDavid Howells #define PSR_VERS_SHIFTED_MASK 0xf 4254579826SDavid Howells #define PSR_IMPL_SHIFTED_MASK 0xf 4354579826SDavid Howells 4454579826SDavid Howells #define PSR_IMPL_TI 0x4 4554579826SDavid Howells #define PSR_IMPL_LEON 0xf 4654579826SDavid Howells 4754579826SDavid Howells 4854579826SDavid Howells #endif /* _UAPI__LINUX_SPARC_PSR_H */ 49