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| Commit | Line | Data |
|---|---|---|
| 5c952cf0 WD |
1 | /* |
| 2 | * (C) Copyright 2004, Psyent Corporation <www.psyent.com> | |
| 3 | * Scott McNutt <smcnutt@psyent.com> | |
| 4 | * | |
| 1a459660 | 5 | * SPDX-License-Identifier: GPL-2.0+ |
| 5c952cf0 WD |
6 | */ |
| 7 | ||
| 8 | #ifndef __NIOS2_H__ | |
| 9 | #define __NIOS2_H__ | |
| 10 | ||
| 11 | /*------------------------------------------------------------------------ | |
| 12 | * Control registers -- use with wrctl() & rdctl() | |
| 13 | *----------------------------------------------------------------------*/ | |
| 14 | #define CTL_STATUS 0 /* Processor status reg */ | |
| 15 | #define CTL_ESTATUS 1 /* Exception status reg */ | |
| 16 | #define CTL_BSTATUS 2 /* Break status reg */ | |
| 17 | #define CTL_IENABLE 3 /* Interrut enable reg */ | |
| 18 | #define CTL_IPENDING 4 /* Interrut pending reg */ | |
| 19 | ||
| 20 | /*------------------------------------------------------------------------ | |
| 21 | * Access to control regs | |
| 22 | *----------------------------------------------------------------------*/ | |
| 5c952cf0 | 23 | |
| 4f63bfb6 TC |
24 | #define rdctl(reg) __builtin_rdctl(reg) |
| 25 | #define wrctl(reg, val) __builtin_wrctl(reg, val) | |
| 5c952cf0 WD |
26 | |
| 27 | /*------------------------------------------------------------------------ | |
| 28 | * Control reg bit masks | |
| 29 | *----------------------------------------------------------------------*/ | |
| 30 | #define STATUS_IE (1<<0) /* Interrupt enable */ | |
| 31 | #define STATUS_U (1<<1) /* User-mode */ | |
| 32 | ||
| 33 | /*------------------------------------------------------------------------ | |
| 34 | * Bit-31 Cache bypass -- only valid for data access. When data cache | |
| 35 | * is not implemented, bit 31 is ignored for compatibility. | |
| 36 | *----------------------------------------------------------------------*/ | |
| 37 | #define CACHE_BYPASS(a) ((a) | 0x80000000) | |
| 38 | #define CACHE_NO_BYPASS(a) ((a) & ~0x80000000) | |
| 39 | ||
| 40 | #endif /* __NIOS2_H__ */ |