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target/loongarch: Add other core instructions support

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This includes:
-CACOP
-LDDIR
-LDPTE
-ERTN
-DBCL
-IDLE

Signed-off-by: Xiaojuan Yang <yangxiaojuan@loongson.cn>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220606124333.2060567-29-yangxiaojuan@loongson.cn>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Xiaojuan Yang 2022-06-06 20:43:18 +08:00 • committed by Richard Henderson
parent fcbbeb8ecd
commit d2cba6f7ce
7 changed files with 233 additions and 0 deletions
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37
target/loongarch/op_helper.c
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@ -6,6 +6,7 @@
*/
#include "qemu/osdep.h"
#include "qemu/log.h"
#include "qemu/main-loop.h"
#include "cpu.h"
#include "qemu/host-utils.h"
@ -15,6 +16,7 @@
#include "internals.h"
#include "qemu/crc32c.h"
#include <zlib.h>
#include "cpu-csr.h"
/* Exceptions helpers */
void helper_raise_exception(CPULoongArchState *env, uint32_t exception)
@ -81,3 +83,38 @@ target_ulong helper_cpucfg(CPULoongArchState *env, target_ulong rj)
{
return rj > 21 ? 0 : env->cpucfg[rj];
}
void helper_ertn(CPULoongArchState *env)
{
uint64_t csr_pplv, csr_pie;
if (FIELD_EX64(env->CSR_TLBRERA, CSR_TLBRERA, ISTLBR)) {
csr_pplv = FIELD_EX64(env->CSR_TLBRPRMD, CSR_TLBRPRMD, PPLV);
csr_pie = FIELD_EX64(env->CSR_TLBRPRMD, CSR_TLBRPRMD, PIE);
env->CSR_TLBRERA = FIELD_DP64(env->CSR_TLBRERA, CSR_TLBRERA, ISTLBR, 0);
env->CSR_CRMD = FIELD_DP64(env->CSR_CRMD, CSR_CRMD, DA, 0);
env->CSR_CRMD = FIELD_DP64(env->CSR_CRMD, CSR_CRMD, PG, 1);
env->pc = env->CSR_TLBRERA;
qemu_log_mask(CPU_LOG_INT, "%s: TLBRERA " TARGET_FMT_lx "\n",
__func__, env->CSR_TLBRERA);
} else {
csr_pplv = FIELD_EX64(env->CSR_PRMD, CSR_PRMD, PPLV);
csr_pie = FIELD_EX64(env->CSR_PRMD, CSR_PRMD, PIE);
env->pc = env->CSR_ERA;
qemu_log_mask(CPU_LOG_INT, "%s: ERA " TARGET_FMT_lx "\n",
__func__, env->CSR_ERA);
}
env->CSR_CRMD = FIELD_DP64(env->CSR_CRMD, CSR_CRMD, PLV, csr_pplv);
env->CSR_CRMD = FIELD_DP64(env->CSR_CRMD, CSR_CRMD, IE, csr_pie);
env->lladdr = 1;
}
void helper_idle(CPULoongArchState *env)
{
CPUState *cs = env_cpu(env);
cs->halted = 1;
do_raise_exception(env, EXCP_HLT, 0);
}