786c02f1ac
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4056 c046a42c-6fe2-441c-8c8c-71466251a162
96 lines
2.7 KiB
C
96 lines
2.7 KiB
C
/*
|
|
* CRIS helper routines
|
|
*
|
|
* Copyright (c) 2007 AXIS Communications
|
|
* Written by Edgar E. Iglesias
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*/
|
|
|
|
#include <assert.h>
|
|
#include "exec.h"
|
|
#include "mmu.h"
|
|
|
|
#define MMUSUFFIX _mmu
|
|
#ifdef __s390__
|
|
# define GETPC() ((void*)((unsigned long)__builtin_return_address(0) & 0x7fffffffUL))
|
|
#else
|
|
# define GETPC() (__builtin_return_address(0))
|
|
#endif
|
|
|
|
#define SHIFT 0
|
|
#include "softmmu_template.h"
|
|
|
|
#define SHIFT 1
|
|
#include "softmmu_template.h"
|
|
|
|
#define SHIFT 2
|
|
#include "softmmu_template.h"
|
|
|
|
#define SHIFT 3
|
|
#include "softmmu_template.h"
|
|
|
|
#define D(x)
|
|
|
|
/* Try to fill the TLB and return an exception if error. If retaddr is
|
|
NULL, it means that the function was called in C code (i.e. not
|
|
from generated code or from helper.c) */
|
|
/* XXX: fix it to restore all registers */
|
|
void tlb_fill (target_ulong addr, int is_write, int mmu_idx, void *retaddr)
|
|
{
|
|
TranslationBlock *tb;
|
|
CPUState *saved_env;
|
|
unsigned long pc;
|
|
int ret;
|
|
|
|
/* XXX: hack to restore env in all cases, even if not called from
|
|
generated code */
|
|
saved_env = env;
|
|
env = cpu_single_env;
|
|
ret = cpu_cris_handle_mmu_fault(env, addr, is_write, mmu_idx, 1);
|
|
if (__builtin_expect(ret, 0)) {
|
|
if (retaddr) {
|
|
/* now we have a real cpu fault */
|
|
pc = (unsigned long)retaddr;
|
|
tb = tb_find_pc(pc);
|
|
if (tb) {
|
|
/* the PC is inside the translated code. It means that we have
|
|
a virtual CPU fault */
|
|
cpu_restore_state(tb, env, pc, NULL);
|
|
}
|
|
}
|
|
cpu_loop_exit();
|
|
}
|
|
env = saved_env;
|
|
}
|
|
|
|
void helper_tlb_update(uint32_t T0)
|
|
{
|
|
#if !defined(CONFIG_USER_ONLY)
|
|
uint32_t vaddr;
|
|
|
|
vaddr = cris_mmu_tlb_latest_update(env, T0);
|
|
D(printf("flush vaddr %x\n", vaddr));
|
|
tlb_flush_page(env, vaddr);
|
|
#endif
|
|
}
|
|
|
|
void do_unassigned_access(target_phys_addr_t addr, int is_write, int is_exec,
|
|
int is_asi)
|
|
{
|
|
D(printf("%s addr=%x w=%d ex=%d asi=%d\n",
|
|
__func__, addr, is_write, is_exec, is_asi));
|
|
}
|