1/* 2 * OpenRISC MMU helper routines 3 * 4 * Copyright (c) 2011-2012 Jia Liu <proljc@gmail.com> 5 * Zhizhou Zhang <etouzh@gmail.com> 6 * 7 * This library is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU Lesser General Public 9 * License as published by the Free Software Foundation; either 10 * version 2 of the License, or (at your option) any later version. 11 * 12 * This library is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 15 * Lesser General Public License for more details. 16 * 17 * You should have received a copy of the GNU Lesser General Public 18 * License along with this library; if not, see <http://www.gnu.org/licenses/>. 19 */ 20 21#include "qemu/osdep.h" 22#include "cpu.h" 23#include "exec/cpu_ldst.h" 24 25#ifndef CONFIG_USER_ONLY 26 27void tlb_fill(CPUState *cs, target_ulong addr, int is_write, 28 int mmu_idx, uintptr_t retaddr) 29{ 30 int ret; 31 32 ret = openrisc_cpu_handle_mmu_fault(cs, addr, is_write, mmu_idx); 33 34 if (ret) { 35 if (retaddr) { 36 /* now we have a real cpu fault. */ 37 cpu_restore_state(cs, retaddr); 38 } 39 /* Raise Exception. */ 40 cpu_loop_exit(cs); 41 } 42} 43#endif 44