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target/xtensa: implement cache test option opcodes 

We don't model caches, so for l*ct opcodes return tags with all bits
(including Valid) set to 0. For all other opcodes don't do anything.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
This commit is contained in:
Max Filippov 2022-05-01 22:57:49 -07:00
parent 4be4c5b826
commit 59491e97f8
1 changed files with 38 additions and 0 deletions
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38
target/xtensa/translate.c
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@ -1766,6 +1766,12 @@ static void translate_ldst(DisasContext *dc, const OpcodeArg arg[],
tcg_temp_free(addr);
}
static void translate_lct(DisasContext *dc, const OpcodeArg arg[],
const uint32_t par[])
{
tcg_gen_movi_i32(arg[0].out, 0);
}
static void translate_l32r(DisasContext *dc, const OpcodeArg arg[],
const uint32_t par[])
{
@ -3319,6 +3325,14 @@ static const XtensaOpcodeOps core_ops[] = {
.translate = translate_ldst,
.par = (const uint32_t[]){MO_UB, false, false},
.op_flags = XTENSA_OP_LOAD,
}, {
.name = "ldct",
.translate = translate_lct,
.op_flags = XTENSA_OP_PRIVILEGED,
}, {
.name = "ldcw",
.translate = translate_nop,
.op_flags = XTENSA_OP_PRIVILEGED,
}, {
.name = "lddec",
.translate = translate_mac16,
@ -3332,6 +3346,14 @@ static const XtensaOpcodeOps core_ops[] = {
}, {
.name = "ldpte",
.op_flags = XTENSA_OP_ILL,
}, {
.name = "lict",
.translate = translate_lct,
.op_flags = XTENSA_OP_PRIVILEGED,
}, {
.name = "licw",
.translate = translate_nop,
.op_flags = XTENSA_OP_PRIVILEGED,
}, {
.name = (const char * const[]) {
"loop", "loop.w15", NULL,
@ -4635,12 +4657,28 @@ static const XtensaOpcodeOps core_ops[] = {
.name = "saltu",
.translate = translate_salt,
.par = (const uint32_t[]){TCG_COND_LTU},
}, {
.name = "sdct",
.translate = translate_nop,
.op_flags = XTENSA_OP_PRIVILEGED,
}, {
.name = "sdcw",
.translate = translate_nop,
.op_flags = XTENSA_OP_PRIVILEGED,
}, {
.name = "setb_expstate",
.translate = translate_setb_expstate,
}, {
.name = "sext",
.translate = translate_sext,
}, {
.name = "sict",
.translate = translate_nop,
.op_flags = XTENSA_OP_PRIVILEGED,
}, {
.name = "sicw",
.translate = translate_nop,
.op_flags = XTENSA_OP_PRIVILEGED,
}, {
.name = "simcall",
.translate = translate_simcall,