These SME instructions are nominally within the SVE decode space,
so we add them to sve.decode and translate-sve.c.
Signed-off-by: Richard Henderson <richard.hender...@linaro.org>
---
target/arm/translate-a64.h | 1 +
target/arm/sve.decode | 5 ++++-
target/arm/translate-a64.c | 15 +++++++++++++++
target/arm/translate-sve.c | 38 ++++++++++++++++++++++++++++++++++++++
4 files changed, 58 insertions(+), 1 deletion(-)
diff --git a/target/arm/translate-a64.h b/target/arm/translate-a64.h
index 789b6e8e78..6bd1b2eb4b 100644
--- a/target/arm/translate-a64.h
+++ b/target/arm/translate-a64.h
@@ -29,6 +29,7 @@ void write_fp_dreg(DisasContext *s, int reg, TCGv_i64 v);
bool logic_imm_decode_wmask(uint64_t *result, unsigned int immn,
unsigned int imms, unsigned int immr);
bool sve_access_check(DisasContext *s);
+bool sme_enabled_check(DisasContext *s);
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, int log2_size);
diff --git a/target/arm/sve.decode b/target/arm/sve.decode
index a54feb2f61..bbdaac6ac7 100644
--- a/target/arm/sve.decode
+++ b/target/arm/sve.decode
@@ -449,14 +449,17 @@ INDEX_ri 00000100 esz:2 1 imm:s5 010001 rn:5 rd:5
# SVE index generation (register start, register increment)
INDEX_rr 00000100 .. 1 ..... 010011 ..... ..... @rd_rn_rm
-### SVE Stack Allocation Group
+### SVE / Streaming SVE Stack Allocation Group
# SVE stack frame adjustment
ADDVL 00000100 001 ..... 01010 ...... ..... @rd_rn_i6
+ADDSVL 00000100 001 ..... 01011 ...... ..... @rd_rn_i6
ADDPL 00000100 011 ..... 01010 ...... ..... @rd_rn_i6
+ADDSPL 00000100 011 ..... 01011 ...... ..... @rd_rn_i6
# SVE stack frame size
RDVL 00000100 101 11111 01010 imm:s6 rd:5
+RDSVL 00000100 101 11111 01011 imm:s6 rd:5
### SVE Bitwise Shift - Unpredicated Group
diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
index efcfb919ff..498970f653 100644
--- a/target/arm/translate-a64.c
+++ b/target/arm/translate-a64.c
@@ -1216,6 +1216,21 @@ static bool sme_access_check(DisasContext *s)
return true;
}
+/* Note that this function corresponds to CheckSMEEnabled. */
+bool sme_enabled_check(DisasContext *s)
+{
+ /*
+ * Note that unlike sve_excp_el, we have not constrained sme_excp_el
+ * to be zero when fp_excp_el has priority. This is because we need
+ * sme_excp_el by itself for cpregs access checks.
+ */
+ if (!s->fp_excp_el || s->sme_excp_el < s->fp_excp_el) {
+ s->fp_access_checked = true;
+ return sme_access_check(s);
+ }
+ return fp_access_check_only(s);
+}
+
/*
* This utility function is for doing register extension with an
* optional shift. You will likely want to pass a temporary for the
diff --git a/target/arm/translate-sve.c b/target/arm/translate-sve.c
index 62b5f3040c..13bdd027a5 100644
--- a/target/arm/translate-sve.c
+++ b/target/arm/translate-sve.c
@@ -1286,6 +1286,19 @@ static bool trans_ADDVL(DisasContext *s, arg_ADDVL *a)
return true;
}
+static bool trans_ADDSVL(DisasContext *s, arg_ADDSVL *a)
+{
+ if (!dc_isar_feature(aa64_sme, s)) {
+ return false;
+ }
+ if (sme_enabled_check(s)) {
+ TCGv_i64 rd = cpu_reg_sp(s, a->rd);
+ TCGv_i64 rn = cpu_reg_sp(s, a->rn);
+ tcg_gen_addi_i64(rd, rn, a->imm * s->svl);
+ }
+ return true;
+}
+
static bool trans_ADDPL(DisasContext *s, arg_ADDPL *a)
{
if (!dc_isar_feature(aa64_sve, s)) {
@@ -1299,6 +1312,19 @@ static bool trans_ADDPL(DisasContext *s, arg_ADDPL *a)
return true;
}
+static bool trans_ADDSPL(DisasContext *s, arg_ADDSPL *a)
+{
+ if (!dc_isar_feature(aa64_sme, s)) {
+ return false;
+ }
+ if (sme_enabled_check(s)) {
+ TCGv_i64 rd = cpu_reg_sp(s, a->rd);
+ TCGv_i64 rn = cpu_reg_sp(s, a->rn);
+ tcg_gen_addi_i64(rd, rn, a->imm * (s->svl / 8));
+ }
+ return true;
+}
+
static bool trans_RDVL(DisasContext *s, arg_RDVL *a)
{
if (!dc_isar_feature(aa64_sve, s)) {
@@ -1311,6 +1337,18 @@ static bool trans_RDVL(DisasContext *s, arg_RDVL *a)
return true;
}
+static bool trans_RDSVL(DisasContext *s, arg_RDSVL *a)
+{
+ if (!dc_isar_feature(aa64_sme, s)) {
+ return false;
+ }
+ if (sme_enabled_check(s)) {
+ TCGv_i64 reg = cpu_reg(s, a->rd);
+ tcg_gen_movi_i64(reg, a->imm * s->svl);
+ }
+ return true;
+}
+
/*
*** SVE Compute Vector Address Group
*/
--
2.34.1
