From: Richard Henderson <richard.henderson@linaro.org>
Pass the individual memop to gen_mte_checkN.
For the moment, do nothing with it.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230530191438.411344-14-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
target/arm/tcg/translate-a64.h | 2 +-
target/arm/tcg/translate-a64.c | 31 +++++++++++++++++++------------
target/arm/tcg/translate-sve.c | 4 ++--
3 files changed, 22 insertions(+), 15 deletions(-)
diff --git a/target/arm/tcg/translate-a64.h b/target/arm/tcg/translate-a64.h
index cecf2bab8f6..b55dc435fc5 100644
@@ -51,7 +51,7 @@ TCGv_i64 clean_data_tbi(DisasContext *s, TCGv_i64 addr);
TCGv_i64 gen_mte_check1(DisasContext *s, TCGv_i64 addr, bool is_write,
bool tag_checked, MemOp memop);
TCGv_i64 gen_mte_checkN(DisasContext *s, TCGv_i64 addr, bool is_write,
- bool tag_checked, int size);
+ bool tag_checked, int total_size, MemOp memop);
/* We should have at some point before trying to access an FP register
* done the necessary access check, so assert that
diff --git a/target/arm/tcg/translate-a64.c b/target/arm/tcg/translate-a64.c
index 85d896e9752..0b600695965 100644
@@ -285,7 +285,7 @@ TCGv_i64 gen_mte_check1(DisasContext *s, TCGv_i64 addr, bool is_write,
* For MTE, check multiple logical sequential accesses.
*/
TCGv_i64 gen_mte_checkN(DisasContext *s, TCGv_i64 addr, bool is_write,
- bool tag_checked, int size)
+ bool tag_checked, int total_size, MemOp single_mop)
{
if (tag_checked && s->mte_active[0]) {
TCGv_i64 ret;
@@ -295,7 +295,7 @@ TCGv_i64 gen_mte_checkN(DisasContext *s, TCGv_i64 addr, bool is_write,
desc = FIELD_DP32(desc, MTEDESC, TBI, s->tbid);
desc = FIELD_DP32(desc, MTEDESC, TCMA, s->tcma);
desc = FIELD_DP32(desc, MTEDESC, WRITE, is_write);
- desc = FIELD_DP32(desc, MTEDESC, SIZEM1, size - 1);
+ desc = FIELD_DP32(desc, MTEDESC, SIZEM1, total_size - 1);
ret = tcg_temp_new_i64();
gen_helper_mte_check(ret, cpu_env, tcg_constant_i32(desc), addr);
@@ -2841,14 +2841,12 @@ static void disas_ldst_pair(DisasContext *s, uint32_t insn)
bool is_vector = extract32(insn, 26, 1);
bool is_load = extract32(insn, 22, 1);
int opc = extract32(insn, 30, 2);
-
bool is_signed = false;
bool postindex = false;
bool wback = false;
bool set_tag = false;
-
TCGv_i64 clean_addr, dirty_addr;
-
+ MemOp mop;
int size;
if (opc == 3) {
@@ -2931,12 +2929,17 @@ static void disas_ldst_pair(DisasContext *s, uint32_t insn)
}
}
+ if (is_vector) {
+ mop = finalize_memop_asimd(s, size);
+ } else {
+ mop = finalize_memop(s, size);
+ }
clean_addr = gen_mte_checkN(s, dirty_addr, !is_load,
- (wback || rn != 31) && !set_tag, 2 << size);
+ (wback || rn != 31) && !set_tag,
+ 2 << size, mop);
if (is_vector) {
- MemOp mop = finalize_memop_asimd(s, size);
-
+ /* LSE2 does not merge FP pairs; leave these as separate operations. */
if (is_load) {
do_fp_ld(s, rt, clean_addr, mop);
} else {
@@ -2951,9 +2954,11 @@ static void disas_ldst_pair(DisasContext *s, uint32_t insn)
} else {
TCGv_i64 tcg_rt = cpu_reg(s, rt);
TCGv_i64 tcg_rt2 = cpu_reg(s, rt2);
- MemOp mop = size + 1;
/*
+ * We built mop above for the single logical access -- rebuild it
+ * now for the paired operation.
+ *
* With LSE2, non-sign-extending pairs are treated atomically if
* aligned, and if unaligned one of the pair will be completely
* within a 16-byte block and that element will be atomic.
@@ -2963,6 +2968,7 @@ static void disas_ldst_pair(DisasContext *s, uint32_t insn)
* This treats sign-extending loads like zero-extending loads,
* since that reuses the most code below.
*/
+ mop = size + 1;
if (s->align_mem) {
mop |= (size == 2 ? MO_ALIGN_4 : MO_ALIGN_8);
}
@@ -3741,7 +3747,7 @@ static void disas_ldst_multiple_struct(DisasContext *s, uint32_t insn)
* promote consecutive little-endian elements below.
*/
clean_addr = gen_mte_checkN(s, tcg_rn, is_store, is_postidx || rn != 31,
- total);
+ total, finalize_memop(s, size));
/*
* Consecutive little-endian elements from a single register
@@ -3899,10 +3905,11 @@ static void disas_ldst_single_struct(DisasContext *s, uint32_t insn)
total = selem << scale;
tcg_rn = cpu_reg_sp(s, rn);
- clean_addr = gen_mte_checkN(s, tcg_rn, !is_load, is_postidx || rn != 31,
- total);
mop = finalize_memop(s, scale);
+ clean_addr = gen_mte_checkN(s, tcg_rn, !is_load, is_postidx || rn != 31,
+ total, mop);
+
tcg_ebytes = tcg_constant_i64(1 << scale);
for (xs = 0; xs < selem; xs++) {
if (replicate) {
diff --git a/target/arm/tcg/translate-sve.c b/target/arm/tcg/translate-sve.c
index 671d2efa85d..ff050626e66 100644
@@ -4176,7 +4176,7 @@ void gen_sve_ldr(DisasContext *s, TCGv_ptr base, int vofs,
dirty_addr = tcg_temp_new_i64();
tcg_gen_addi_i64(dirty_addr, cpu_reg_sp(s, rn), imm);
- clean_addr = gen_mte_checkN(s, dirty_addr, false, rn != 31, len);
+ clean_addr = gen_mte_checkN(s, dirty_addr, false, rn != 31, len, MO_8);
/*
* Note that unpredicated load/store of vector/predicate registers
@@ -4278,7 +4278,7 @@ void gen_sve_str(DisasContext *s, TCGv_ptr base, int vofs,
dirty_addr = tcg_temp_new_i64();
tcg_gen_addi_i64(dirty_addr, cpu_reg_sp(s, rn), imm);
- clean_addr = gen_mte_checkN(s, dirty_addr, false, rn != 31, len);
+ clean_addr = gen_mte_checkN(s, dirty_addr, false, rn != 31, len, MO_8);
/* Note that unpredicated load/store of vector/predicate registers
* are defined as a stream of bytes, which equates to little-endian
--
2.34.1