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 "qemu/osdep.h" 22 #include "cpu.h" 23 #include "exec/helper-proto.h" 24 #include "exec/cpu_ldst.h" 25 #include "exec/exec-all.h" 26 #include "qemu/main-loop.h" 27 28 #if !defined(CONFIG_USER_ONLY) 29 void helper_mmu_read_debug(CPUNios2State *env, uint32_t rn) 30 { 31 mmu_read_debug(env, rn); 32 } 33 34 void helper_mmu_write(CPUNios2State *env, uint32_t rn, uint32_t v) 35 { 36 mmu_write(env, rn, v); 37 } 38 39 void helper_check_interrupts(CPUNios2State *env) 40 { 41 qemu_mutex_lock_iothread(); 42 nios2_check_interrupts(env); 43 qemu_mutex_unlock_iothread(); 44 } 45 #endif /* !CONFIG_USER_ONLY */ 46 47 void helper_raise_exception(CPUNios2State *env, uint32_t index) 48 { 49 CPUState *cs = env_cpu(env); 50 cs->exception_index = index; 51 cpu_loop_exit(cs); 52 } 53