| Kyle Swenson | 8d8f654 | 2021-03-15 11:02:55 -0600 | [diff] [blame^] | 1 | /* |
| 2 | * psr.h: This file holds the macros for masking off various parts of |
| 3 | * the processor status register on the Sparc. This is valid |
| 4 | * for Version 8. On the V9 this is renamed to the PSTATE |
| 5 | * register and its members are accessed as fields like |
| 6 | * PSTATE.PRIV for the current CPU privilege level. |
| 7 | * |
| 8 | * Copyright (C) 1994 David S. Miller (davem@caip.rutgers.edu) |
| 9 | */ |
| 10 | |
| 11 | #ifndef _UAPI__LINUX_SPARC_PSR_H |
| 12 | #define _UAPI__LINUX_SPARC_PSR_H |
| 13 | |
| 14 | /* The Sparc PSR fields are laid out as the following: |
| 15 | * |
| 16 | * ------------------------------------------------------------------------ |
| 17 | * | impl | vers | icc | resv | EC | EF | PIL | S | PS | ET | CWP | |
| 18 | * | 31-28 | 27-24 | 23-20 | 19-14 | 13 | 12 | 11-8 | 7 | 6 | 5 | 4-0 | |
| 19 | * ------------------------------------------------------------------------ |
| 20 | */ |
| 21 | #define PSR_CWP 0x0000001f /* current window pointer */ |
| 22 | #define PSR_ET 0x00000020 /* enable traps field */ |
| 23 | #define PSR_PS 0x00000040 /* previous privilege level */ |
| 24 | #define PSR_S 0x00000080 /* current privilege level */ |
| 25 | #define PSR_PIL 0x00000f00 /* processor interrupt level */ |
| 26 | #define PSR_EF 0x00001000 /* enable floating point */ |
| 27 | #define PSR_EC 0x00002000 /* enable co-processor */ |
| 28 | #define PSR_SYSCALL 0x00004000 /* inside of a syscall */ |
| 29 | #define PSR_LE 0x00008000 /* SuperSparcII little-endian */ |
| 30 | #define PSR_ICC 0x00f00000 /* integer condition codes */ |
| 31 | #define PSR_C 0x00100000 /* carry bit */ |
| 32 | #define PSR_V 0x00200000 /* overflow bit */ |
| 33 | #define PSR_Z 0x00400000 /* zero bit */ |
| 34 | #define PSR_N 0x00800000 /* negative bit */ |
| 35 | #define PSR_VERS 0x0f000000 /* cpu-version field */ |
| 36 | #define PSR_IMPL 0xf0000000 /* cpu-implementation field */ |
| 37 | |
| 38 | #define PSR_VERS_SHIFT 24 |
| 39 | #define PSR_IMPL_SHIFT 28 |
| 40 | #define PSR_VERS_SHIFTED_MASK 0xf |
| 41 | #define PSR_IMPL_SHIFTED_MASK 0xf |
| 42 | |
| 43 | #define PSR_IMPL_TI 0x4 |
| 44 | #define PSR_IMPL_LEON 0xf |
| 45 | |
| 46 | |
| 47 | #endif /* _UAPI__LINUX_SPARC_PSR_H */ |