032c76bc6f
Add support for emulating Altera NiosII R1 architecture into qemu. This patch is based on previous work by Chris Wulff from 2012 and updated to latest mainline QEMU. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Chris Wulff <crwulff@gmail.com> Cc: Jeff Da Silva <jdasilva@altera.com> Cc: Ley Foon Tan <lftan@altera.com> Cc: Sandra Loosemore <sandra@codesourcery.com> Cc: Yves Vandervennet <yvanderv@altera.com> Cc: Alexander Graf <agraf@suse.de> Message-Id: <20170118220146.489-3-marex@denx.de> [rth: Remove tlb_flush from nios2_cpu_reset.] Signed-off-by: Richard Henderson <rth@twiddle.net>
48 lines
1.3 KiB
C
48 lines
1.3 KiB
C
/*
|
|
* Altera Nios II helper routines.
|
|
*
|
|
* Copyright (C) 2012 Chris Wulff <crwulff@gmail.com>
|
|
*
|
|
* 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 2.1 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, see
|
|
* <http://www.gnu.org/licenses/lgpl-2.1.html>
|
|
*/
|
|
|
|
#include "cpu.h"
|
|
#include "exec/helper-proto.h"
|
|
#include "exec/cpu_ldst.h"
|
|
|
|
#if !defined(CONFIG_USER_ONLY)
|
|
void helper_mmu_read_debug(CPUNios2State *env, uint32_t rn)
|
|
{
|
|
mmu_read_debug(env, rn);
|
|
}
|
|
|
|
void helper_mmu_write(CPUNios2State *env, uint32_t rn, uint32_t v)
|
|
{
|
|
mmu_write(env, rn, v);
|
|
}
|
|
|
|
void helper_check_interrupts(CPUNios2State *env)
|
|
{
|
|
nios2_check_interrupts(env);
|
|
}
|
|
#endif /* !CONFIG_USER_ONLY */
|
|
|
|
void helper_raise_exception(CPUNios2State *env, uint32_t index)
|
|
{
|
|
CPUState *cs = ENV_GET_CPU(env);
|
|
cs->exception_index = index;
|
|
cpu_loop_exit(cs);
|
|
}
|