haraldwolff/qemu-patch-raspberry4
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target-tricore: Add initialization for translation and activate target

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Add tcg and cpu model initialization.
Add gen_intermediate_code function.
Activate target in configure and add softmmu config.

Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Message-id: 1409572800-4116-5-git-send-email-kbastian@mail.uni-paderborn.de
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Bastian Koppelmann 2014-09-01 12:59:49 +01:00 committed by Peter Maydell
parent 2d30267e8e
commit 0aaeb118b3
3 changed files with 167 additions and 0 deletions
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2
configure vendored
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@ -5045,6 +5045,8 @@ case "$target_name" in
TARGET_BASE_ARCH=mips
echo "TARGET_ABI_MIPSN64=y" >> $config_target_mak
;;
tricore)
;;
moxie)
;;
or32)

0
default-configs/tricore-softmmu.mak Normal file
View file

165
target-tricore/translate.c
View file

@ -26,6 +26,26 @@
#include "exec/helper-proto.h"
#include "exec/helper-gen.h"
/*
* TCG registers
*/
static TCGv cpu_PC;
static TCGv cpu_PCXI;
static TCGv cpu_PSW;
static TCGv cpu_ICR;
/* GPR registers */
static TCGv cpu_gpr_a[16];
static TCGv cpu_gpr_d[16];
/* PSW Flag cache */
static TCGv cpu_PSW_C;
static TCGv cpu_PSW_V;
static TCGv cpu_PSW_SV;
static TCGv cpu_PSW_AV;
static TCGv cpu_PSW_SAV;
/* CPU env */
static TCGv_ptr cpu_env;
#include "exec/gen-icount.h"
static const char *regnames_a[] = {
"a0" , "a1" , "a2" , "a3" , "a4" , "a5" ,
@ -39,6 +59,25 @@ static const char *regnames_d[] = {
"d12" , "d13" , "d14" , "d15",
};
typedef struct DisasContext {
struct TranslationBlock *tb;
target_ulong pc, saved_pc, next_pc;
uint32_t opcode;
int singlestep_enabled;
/* Routine used to access memory */
int mem_idx;
uint32_t hflags, saved_hflags;
int bstate;
} DisasContext;
enum {
BS_NONE = 0,
BS_STOP = 1,
BS_BRANCH = 2,
BS_EXCP = 3,
};
void tricore_cpu_dump_state(CPUState *cs, FILE *f,
fprintf_function cpu_fprintf, int flags)
{
@ -62,10 +101,88 @@ void tricore_cpu_dump_state(CPUState *cs, FILE *f,
}
static void decode_16Bit_opc(CPUTriCoreState *env, DisasContext *ctx)
{
}
static void decode_32Bit_opc(CPUTriCoreState *env, DisasContext *ctx)
{
}
static void decode_opc(CPUTriCoreState *env, DisasContext *ctx, int *is_branch)
{
/* 16-Bit Instruction */
if ((ctx->opcode & 0x1) == 0) {
ctx->next_pc = ctx->pc + 2;
decode_16Bit_opc(env, ctx);
/* 32-Bit Instruction */
} else {
ctx->next_pc = ctx->pc + 4;
decode_32Bit_opc(env, ctx);
}
}
static inline void
gen_intermediate_code_internal(TriCoreCPU *cpu, struct TranslationBlock *tb,
int search_pc)
{
CPUState *cs = CPU(cpu);
CPUTriCoreState *env = &cpu->env;
DisasContext ctx;
target_ulong pc_start;
int num_insns;
uint16_t *gen_opc_end;
if (search_pc) {
qemu_log("search pc %d\n", search_pc);
}
num_insns = 0;
pc_start = tb->pc;
gen_opc_end = tcg_ctx.gen_opc_buf + OPC_MAX_SIZE;
ctx.pc = pc_start;
ctx.saved_pc = -1;
ctx.tb = tb;
ctx.singlestep_enabled = cs->singlestep_enabled;
ctx.bstate = BS_NONE;
ctx.mem_idx = cpu_mmu_index(env);
tcg_clear_temp_count();
gen_tb_start();
while (ctx.bstate == BS_NONE) {
ctx.opcode = cpu_ldl_code(env, ctx.pc);
decode_opc(env, &ctx, 0);
num_insns++;
if (tcg_ctx.gen_opc_ptr >= gen_opc_end) {
break;
}
if (singlestep) {
break;
}
ctx.pc = ctx.next_pc;
}
gen_tb_end(tb, num_insns);
*tcg_ctx.gen_opc_ptr = INDEX_op_end;
if (search_pc) {
printf("done_generating search pc\n");
} else {
tb->size = ctx.pc - pc_start;
tb->icount = num_insns;
}
if (tcg_check_temp_count()) {
printf("LEAK at %08x\n", env->PC);
}
#ifdef DEBUG_DISAS
if (qemu_loglevel_mask(CPU_LOG_TB_IN_ASM)) {
qemu_log("IN: %s\n", lookup_symbol(pc_start));
log_target_disas(env, pc_start, ctx.pc - pc_start, 0);
qemu_log("\n");
}
#endif
}
void
@ -93,8 +210,56 @@ restore_state_to_opc(CPUTriCoreState *env, TranslationBlock *tb, int pc_pos)
void cpu_state_reset(CPUTriCoreState *env)
{
/* Reset Regs to Default Value */
env->PSW = 0xb80;
}
static void tricore_tcg_init_csfr(void)
{
cpu_PCXI = tcg_global_mem_new(TCG_AREG0,
offsetof(CPUTriCoreState, PCXI), "PCXI");
cpu_PSW = tcg_global_mem_new(TCG_AREG0,
offsetof(CPUTriCoreState, PSW), "PSW");
cpu_PC = tcg_global_mem_new(TCG_AREG0,
offsetof(CPUTriCoreState, PC), "PC");
cpu_ICR = tcg_global_mem_new(TCG_AREG0,
offsetof(CPUTriCoreState, ICR), "ICR");
}
void tricore_tcg_init(void)
{
int i;
static int inited;
if (inited) {
return;
}
cpu_env = tcg_global_reg_new_ptr(TCG_AREG0, "env");
/* reg init */
for (i = 0 ; i < 16 ; i++) {
cpu_gpr_a[i] = tcg_global_mem_new(TCG_AREG0,
offsetof(CPUTriCoreState, gpr_a[i]),
regnames_a[i]);
}
for (i = 0 ; i < 16 ; i++) {
cpu_gpr_d[i] = tcg_global_mem_new(TCG_AREG0,
offsetof(CPUTriCoreState, gpr_d[i]),
regnames_d[i]);
}
tricore_tcg_init_csfr();
/* init PSW flag cache */
cpu_PSW_C = tcg_global_mem_new(TCG_AREG0,
offsetof(CPUTriCoreState, PSW_USB_C),
"PSW_C");
cpu_PSW_V = tcg_global_mem_new(TCG_AREG0,
offsetof(CPUTriCoreState, PSW_USB_V),
"PSW_V");
cpu_PSW_SV = tcg_global_mem_new(TCG_AREG0,
offsetof(CPUTriCoreState, PSW_USB_SV),
"PSW_SV");
cpu_PSW_AV = tcg_global_mem_new(TCG_AREG0,
offsetof(CPUTriCoreState, PSW_USB_AV),
"PSW_AV");
cpu_PSW_SAV = tcg_global_mem_new(TCG_AREG0,
offsetof(CPUTriCoreState, PSW_USB_SAV),
"PSW_SAV");
}