162306a36Sopenharmony_ci/* SPDX-License-Identifier: GPL-2.0-or-later */ 262306a36Sopenharmony_ci/* 362306a36Sopenharmony_ci * Copyright (C) 2011 Tobias Klauser <tklauser@distanz.ch> 462306a36Sopenharmony_ci */ 562306a36Sopenharmony_ci 662306a36Sopenharmony_ci#ifndef _ASM_NIOS2_REGISTERS_H 762306a36Sopenharmony_ci#define _ASM_NIOS2_REGISTERS_H 862306a36Sopenharmony_ci 962306a36Sopenharmony_ci#ifndef __ASSEMBLY__ 1062306a36Sopenharmony_ci#include <asm/cpuinfo.h> 1162306a36Sopenharmony_ci#endif 1262306a36Sopenharmony_ci 1362306a36Sopenharmony_ci/* control register numbers */ 1462306a36Sopenharmony_ci#define CTL_FSTATUS 0 1562306a36Sopenharmony_ci#define CTL_ESTATUS 1 1662306a36Sopenharmony_ci#define CTL_BSTATUS 2 1762306a36Sopenharmony_ci#define CTL_IENABLE 3 1862306a36Sopenharmony_ci#define CTL_IPENDING 4 1962306a36Sopenharmony_ci#define CTL_CPUID 5 2062306a36Sopenharmony_ci#define CTL_RSV1 6 2162306a36Sopenharmony_ci#define CTL_EXCEPTION 7 2262306a36Sopenharmony_ci#define CTL_PTEADDR 8 2362306a36Sopenharmony_ci#define CTL_TLBACC 9 2462306a36Sopenharmony_ci#define CTL_TLBMISC 10 2562306a36Sopenharmony_ci#define CTL_RSV2 11 2662306a36Sopenharmony_ci#define CTL_BADADDR 12 2762306a36Sopenharmony_ci#define CTL_CONFIG 13 2862306a36Sopenharmony_ci#define CTL_MPUBASE 14 2962306a36Sopenharmony_ci#define CTL_MPUACC 15 3062306a36Sopenharmony_ci 3162306a36Sopenharmony_ci/* access control registers using GCC builtins */ 3262306a36Sopenharmony_ci#define RDCTL(r) __builtin_rdctl(r) 3362306a36Sopenharmony_ci#define WRCTL(r, v) __builtin_wrctl(r, v) 3462306a36Sopenharmony_ci 3562306a36Sopenharmony_ci/* status register bits */ 3662306a36Sopenharmony_ci#define STATUS_PIE (1 << 0) /* processor interrupt enable */ 3762306a36Sopenharmony_ci#define STATUS_U (1 << 1) /* user mode */ 3862306a36Sopenharmony_ci#define STATUS_EH (1 << 2) /* Exception mode */ 3962306a36Sopenharmony_ci 4062306a36Sopenharmony_ci/* estatus register bits */ 4162306a36Sopenharmony_ci#define ESTATUS_EPIE (1 << 0) /* processor interrupt enable */ 4262306a36Sopenharmony_ci#define ESTATUS_EU (1 << 1) /* user mode */ 4362306a36Sopenharmony_ci#define ESTATUS_EH (1 << 2) /* Exception mode */ 4462306a36Sopenharmony_ci 4562306a36Sopenharmony_ci/* tlbmisc register bits */ 4662306a36Sopenharmony_ci#define TLBMISC_PID_SHIFT 4 4762306a36Sopenharmony_ci#ifndef __ASSEMBLY__ 4862306a36Sopenharmony_ci#define TLBMISC_PID_MASK ((1UL << cpuinfo.tlb_pid_num_bits) - 1) 4962306a36Sopenharmony_ci#endif 5062306a36Sopenharmony_ci#define TLBMISC_WAY_MASK 0xf 5162306a36Sopenharmony_ci#define TLBMISC_WAY_SHIFT 20 5262306a36Sopenharmony_ci 5362306a36Sopenharmony_ci#define TLBMISC_PID (TLBMISC_PID_MASK << TLBMISC_PID_SHIFT) /* TLB PID */ 5462306a36Sopenharmony_ci#define TLBMISC_WE (1 << 18) /* TLB write enable */ 5562306a36Sopenharmony_ci#define TLBMISC_RD (1 << 19) /* TLB read */ 5662306a36Sopenharmony_ci#define TLBMISC_WAY (TLBMISC_WAY_MASK << TLBMISC_WAY_SHIFT) /* TLB way */ 5762306a36Sopenharmony_ci 5862306a36Sopenharmony_ci#endif /* _ASM_NIOS2_REGISTERS_H */ 59