TriCore Support (#1568)
* TriCore Support python sample * Update sample_tricore.py Correct attribution * Update sample_tricore.py Fixed byte code to execute properly. * Update sample_tricore.py Removed testing artifact * Added tricore msvc config-file.h * Added STATIC to tricore config and added helper methods to symbol file generation. * Update op_helper.c Use built in crc32 * Fix tricore samples and small code blocks are now handled properly * Add CPU types * Generate bindings * Format code Co-authored-by: lazymio <mio@lazym.io>
This commit is contained in:
Eric Poole
GitHub
205
qemu/target/tricore/cpu.c
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205
qemu/target/tricore/cpu.c
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/*
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* TriCore emulation for qemu: main translation routines.
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*
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* Copyright (c) 2012-2014 Bastian Koppelmann C-Lab/University Paderborn
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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 2.1 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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/*
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Modified for Unicorn Engine by Eric Poole <eric.poole@aptiv.com>, 2022
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Copyright 2022 Aptiv
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*/
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#include "qemu/osdep.h"
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#include "cpu.h"
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#include "cpu-qom.h"
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#include "exec/exec-all.h"
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#include <uc_priv.h>
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static inline void set_feature(CPUTriCoreState *env, int feature)
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{
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env->features |= 1ULL << feature;
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}
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static void tricore_cpu_set_pc(CPUState *cs, vaddr value)
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{
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TriCoreCPU *cpu = TRICORE_CPU(cs);
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CPUTriCoreState *env = &cpu->env;
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env->PC = value & ~(target_ulong)1;
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}
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static void tricore_cpu_synchronize_from_tb(CPUState *cs, TranslationBlock *tb)
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{
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TriCoreCPU *cpu = TRICORE_CPU(cs);
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CPUTriCoreState *env = &cpu->env;
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env->PC = tb->pc;
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}
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static void tricore_cpu_reset(CPUState *dev)
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{
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CPUState *s = CPU(dev);
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TriCoreCPU *cpu = TRICORE_CPU(s);
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TriCoreCPUClass *tcc = TRICORE_CPU_GET_CLASS(cpu);
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CPUTriCoreState *env = &cpu->env;
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tcc->parent_reset(dev);
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memset(env, 0, offsetof(CPUTriCoreState, end_reset_fields));
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cpu_state_reset(env);
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}
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static bool tricore_cpu_has_work(CPUState *cs)
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{
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return true;
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}
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static void tricore_cpu_realizefn(CPUState *dev)
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{
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CPUState *cs = CPU(dev);
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TriCoreCPU *cpu = TRICORE_CPU(dev);
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CPUTriCoreState *env = &cpu->env;
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cpu_exec_realizefn(cs);
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/* Some features automatically imply others */
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if (tricore_feature(env, TRICORE_FEATURE_161)) {
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set_feature(env, TRICORE_FEATURE_16);
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}
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if (tricore_feature(env, TRICORE_FEATURE_16)) {
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set_feature(env, TRICORE_FEATURE_131);
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}
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if (tricore_feature(env, TRICORE_FEATURE_131)) {
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set_feature(env, TRICORE_FEATURE_13);
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}
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cpu_reset(cs);
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}
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static void tricore_cpu_initfn(struct uc_struct *uc, CPUState *obj)
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{
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TriCoreCPU *cpu = TRICORE_CPU(obj);
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CPUTriCoreState *env = &cpu->env;
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env->uc = uc;
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cpu_set_cpustate_pointers(cpu);
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}
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static void tc1796_initfn(CPUState *obj)
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{
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TriCoreCPU *cpu = TRICORE_CPU(obj);
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set_feature(&cpu->env, TRICORE_FEATURE_13);
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}
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static void tc1797_initfn(CPUState *obj)
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{
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TriCoreCPU *cpu = TRICORE_CPU(obj);
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set_feature(&cpu->env, TRICORE_FEATURE_131);
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}
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static void tc27x_initfn(CPUState *obj)
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{
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TriCoreCPU *cpu = TRICORE_CPU(obj);
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set_feature(&cpu->env, TRICORE_FEATURE_161);
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}
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static void tricore_cpu_class_init(CPUClass *c)
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{
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TriCoreCPUClass *mcc = TRICORE_CPU_CLASS(c);
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CPUClass *cc = CPU_CLASS(c);
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/* parent class is CPUClass, parent_reset() is cpu_common_reset(). */
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mcc->parent_reset = cc->reset;
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cc->reset = tricore_cpu_reset;
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cc->has_work = tricore_cpu_has_work;
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cc->set_pc = tricore_cpu_set_pc;
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cc->synchronize_from_tb = tricore_cpu_synchronize_from_tb;
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cc->get_phys_page_debug = tricore_cpu_get_phys_page_debug;
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cc->tlb_fill = tricore_cpu_tlb_fill;
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cc->tcg_initialize = tricore_tcg_init;
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}
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#define DEFINE_TRICORE_CPU_TYPE(cpu_model, initfn) \
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{ \
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.parent = TYPE_TRICORE_CPU, \
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.initfn = initfn, \
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.name = TRICORE_CPU_TYPE_NAME(cpu_model), \
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}
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struct TriCoreCPUInfo {
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const char *name;
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void (*initfn)(CPUState *obj);
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};
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static struct TriCoreCPUInfo tricore_cpus_type_infos[] = {
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{ "tc1796", tc1796_initfn },
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{ "tc1797", tc1797_initfn },
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{ "tc27x", tc27x_initfn },
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};
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TriCoreCPU *cpu_tricore_init(struct uc_struct *uc)
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{
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TriCoreCPU *cpu;
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CPUState *cs;
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CPUClass *cc;
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cpu = calloc(1, sizeof(*cpu));
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if (cpu == NULL) {
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return NULL;
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}
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if (uc->cpu_model == INT_MAX) {
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uc->cpu_model = 2; // tc27x
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} else if (uc->cpu_model >= ARRAY_SIZE(tricore_cpus_type_infos)) {
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free(cpu);
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return NULL;
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}
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cs = (CPUState *)cpu;
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cc = (CPUClass *)&cpu->cc;
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cs->cc = cc;
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cs->uc = uc;
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uc->cpu = cs;
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cpu_class_init(uc, cc);
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tricore_cpu_class_init(cc);
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cpu_common_initfn(uc, cs);
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tricore_cpu_initfn(uc, cs);
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tricore_cpus_type_infos[uc->cpu_model].initfn(cs);
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tricore_cpu_realizefn(cs);
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// init address space
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cpu_address_space_init(cs, 0, cs->memory);
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qemu_init_vcpu(cs);
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return cpu;
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}
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