2007-10-08 15:04:02 +02:00
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/*
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* CRIS helper routines
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*
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* Copyright (c) 2007 AXIS Communications
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* Written by Edgar E. Iglesias
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <assert.h>
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#include "exec.h"
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2008-03-14 02:08:09 +01:00
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#include "mmu.h"
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2007-10-08 15:04:02 +02:00
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#define MMUSUFFIX _mmu
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2007-10-29 15:39:49 +01:00
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#ifdef __s390__
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# define GETPC() ((void*)((unsigned long)__builtin_return_address(0) & 0x7fffffffUL))
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#else
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# define GETPC() (__builtin_return_address(0))
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#endif
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2007-10-08 15:04:02 +02:00
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#define SHIFT 0
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#include "softmmu_template.h"
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#define SHIFT 1
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#include "softmmu_template.h"
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#define SHIFT 2
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#include "softmmu_template.h"
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#define SHIFT 3
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#include "softmmu_template.h"
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2008-03-14 02:08:09 +01:00
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#define D(x)
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2007-10-08 15:04:02 +02:00
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/* Try to fill the TLB and return an exception if error. If retaddr is
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NULL, it means that the function was called in C code (i.e. not
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from generated code or from helper.c) */
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/* XXX: fix it to restore all registers */
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2007-10-14 09:07:08 +02:00
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void tlb_fill (target_ulong addr, int is_write, int mmu_idx, void *retaddr)
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2007-10-08 15:04:02 +02:00
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{
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TranslationBlock *tb;
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CPUState *saved_env;
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2007-11-11 13:35:55 +01:00
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unsigned long pc;
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2007-10-08 15:04:02 +02:00
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int ret;
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/* XXX: hack to restore env in all cases, even if not called from
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generated code */
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saved_env = env;
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env = cpu_single_env;
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2007-10-14 09:07:08 +02:00
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ret = cpu_cris_handle_mmu_fault(env, addr, is_write, mmu_idx, 1);
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2007-10-08 15:04:02 +02:00
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if (__builtin_expect(ret, 0)) {
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if (retaddr) {
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/* now we have a real cpu fault */
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2007-11-11 13:35:55 +01:00
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pc = (unsigned long)retaddr;
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2007-10-08 15:04:02 +02:00
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tb = tb_find_pc(pc);
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if (tb) {
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/* the PC is inside the translated code. It means that we have
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a virtual CPU fault */
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cpu_restore_state(tb, env, pc, NULL);
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}
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}
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cpu_loop_exit();
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}
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env = saved_env;
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}
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2008-03-14 02:08:09 +01:00
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void helper_tlb_update(uint32_t T0)
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{
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#if !defined(CONFIG_USER_ONLY)
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uint32_t vaddr;
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vaddr = cris_mmu_tlb_latest_update(env, T0);
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D(printf("flush vaddr %x\n", vaddr));
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tlb_flush_page(env, vaddr);
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#endif
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}
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2007-10-08 15:04:02 +02:00
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void do_unassigned_access(target_phys_addr_t addr, int is_write, int is_exec,
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int is_asi)
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{
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2008-03-14 02:08:09 +01:00
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D(printf("%s addr=%x w=%d ex=%d asi=%d\n",
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__func__, addr, is_write, is_exec, is_asi));
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2007-10-08 15:04:02 +02:00
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}
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