mirror of
https://github.com/yuzu-emu/unicorn.git
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0d7be1a913
Make CPUSPARCState::def embedded so it would be allocated as part of cpu instance and we won't have to worry about cleaning def pointer up mannualy on cpu destruction. Backports commit 576e1c4c239621482474ba7b495a41bab2d16ae5 from qemu
96 lines
2.8 KiB
C
96 lines
2.8 KiB
C
/*
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* Sparc32 interrupt helpers
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*
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* Copyright (c) 2003-2005 Fabrice Bellard
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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, see <http://www.gnu.org/licenses/>.
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*/
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#include "qemu/osdep.h"
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#include "cpu.h"
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#include "sysemu/sysemu.h"
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void sparc_cpu_do_interrupt(CPUState *cs)
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{
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SPARCCPU *cpu = SPARC_CPU(cs->uc, cs);
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CPUSPARCState *env = &cpu->env;
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int cwp, intno = cs->exception_index;
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/* Compute PSR before exposing state. */
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if (env->cc_op != CC_OP_FLAGS) {
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cpu_get_psr(env);
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}
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#if !defined(CONFIG_USER_ONLY)
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if (env->psret == 0) {
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if (cs->exception_index == 0x80 &&
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env->def.features & CPU_FEATURE_TA0_SHUTDOWN) {
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qemu_system_shutdown_request();
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} else {
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cpu_abort(cs, "Trap 0x%02x while interrupts disabled, Error state",
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cs->exception_index);
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}
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return;
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}
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#endif
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env->psret = 0;
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cwp = cpu_cwp_dec(env, env->cwp - 1);
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cpu_set_cwp(env, cwp);
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env->regwptr[9] = env->pc;
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env->regwptr[10] = env->npc;
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env->psrps = env->psrs;
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env->psrs = 1;
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env->tbr = (env->tbr & TBR_BASE_MASK) | (intno << 4);
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env->pc = env->tbr;
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env->npc = env->pc + 4;
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cs->exception_index = -1;
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}
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#if !defined(CONFIG_USER_ONLY)
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static void leon3_cache_control_int(CPUSPARCState *env)
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{
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uint32_t state = 0;
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if (env->cache_control & CACHE_CTRL_IF) {
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/* Instruction cache state */
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state = env->cache_control & CACHE_STATE_MASK;
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if (state == CACHE_ENABLED) {
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state = CACHE_FROZEN;
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//trace_int_helper_icache_freeze();
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}
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env->cache_control &= ~CACHE_STATE_MASK;
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env->cache_control |= state;
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}
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if (env->cache_control & CACHE_CTRL_DF) {
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/* Data cache state */
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state = (env->cache_control >> 2) & CACHE_STATE_MASK;
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if (state == CACHE_ENABLED) {
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state = CACHE_FROZEN;
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//trace_int_helper_dcache_freeze();
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}
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env->cache_control &= ~(CACHE_STATE_MASK << 2);
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env->cache_control |= (state << 2);
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}
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}
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void leon3_irq_manager(CPUSPARCState *env, void *irq_manager, int intno)
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{
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//leon3_irq_ack(irq_manager, intno);
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leon3_cache_control_int(env);
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}
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#endif
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