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Diffstat (limited to 'arch/sparc/include/uapi/asm/psr.h')
| -rw-r--r-- | arch/sparc/include/uapi/asm/psr.h | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/arch/sparc/include/uapi/asm/psr.h b/arch/sparc/include/uapi/asm/psr.h new file mode 100644 index 00000000000..2f0ed856530 --- /dev/null +++ b/arch/sparc/include/uapi/asm/psr.h @@ -0,0 +1,47 @@ +/* + * 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 */ |