1/* 2 * Altera Nios II helper routines. 3 * 4 * Copyright (C) 2012 Chris Wulff <crwulff@gmail.com> 5 * 6 * This library is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU Lesser General Public 8 * License as published by the Free Software Foundation; either 9 * version 2.1 of the License, or (at your option) any later version. 10 * 11 * This library is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 * Lesser General Public License for more details. 15 * 16 * You should have received a copy of the GNU Lesser General Public 17 * License along with this library; if not, see 18 * <http://www.gnu.org/licenses/lgpl-2.1.html> 19 */ 20 21#include "cpu.h" 22#include "exec/helper-proto.h" 23#include "exec/cpu_ldst.h" 24#include "qemu/main-loop.h" 25 26#if !defined(CONFIG_USER_ONLY) 27void helper_mmu_read_debug(CPUNios2State *env, uint32_t rn) 28{ 29 mmu_read_debug(env, rn); 30} 31 32void helper_mmu_write(CPUNios2State *env, uint32_t rn, uint32_t v) 33{ 34 mmu_write(env, rn, v); 35} 36 37void helper_check_interrupts(CPUNios2State *env) 38{ 39 qemu_mutex_lock_iothread(); 40 nios2_check_interrupts(env); 41 qemu_mutex_unlock_iothread(); 42} 43#endif /* !CONFIG_USER_ONLY */ 44 45void helper_raise_exception(CPUNios2State *env, uint32_t index) 46{ 47 CPUState *cs = ENV_GET_CPU(env); 48 cs->exception_index = index; 49 cpu_loop_exit(cs); 50} 51