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From: Richard Henderson <richard.henderson@linaro.org>
To: qemu-devel@nongnu.org
Cc: qemu-arm@nongnu.org
Subject: [PATCH 23/61] target/arm: Implement SME2 BMOPA
Date: Thu, 6 Feb 2025 11:56:37 -0800
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Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
target/arm/tcg/helper-sme.h | 3 +++
target/arm/tcg/sme_helper.c | 34 ++++++++++++++++++++++++----------
target/arm/tcg/translate-sme.c | 2 ++
target/arm/tcg/sme.decode | 2 ++
4 files changed, 31 insertions(+), 10 deletions(-)
diff --git a/target/arm/tcg/helper-sme.h b/target/arm/tcg/helper-sme.h
index 8246ce774c..17d1a7c102 100644
--- a/target/arm/tcg/helper-sme.h
+++ b/target/arm/tcg/helper-sme.h
@@ -153,3 +153,6 @@ DEF_HELPER_FLAGS_6(sme_sumopa_d, TCG_CALL_NO_RWG,
void, ptr, ptr, ptr, ptr, ptr, i32)
DEF_HELPER_FLAGS_6(sme_usmopa_d, TCG_CALL_NO_RWG,
void, ptr, ptr, ptr, ptr, ptr, i32)
+
+DEF_HELPER_FLAGS_6(sme2_bmopa_s, TCG_CALL_NO_RWG,
+ void, ptr, ptr, ptr, ptr, ptr, i32)
diff --git a/target/arm/tcg/sme_helper.c b/target/arm/tcg/sme_helper.c
index ee81bece12..6d8e2cedc9 100644
--- a/target/arm/tcg/sme_helper.c
+++ b/target/arm/tcg/sme_helper.c
@@ -1267,17 +1267,31 @@ DEF_IMOP_64(umopa_d, uint16_t, uint16_t)
DEF_IMOP_64(sumopa_d, int16_t, uint16_t)
DEF_IMOP_64(usmopa_d, uint16_t, int16_t)
=20
-#define DEF_IMOPH(NAME, S) \
- void HELPER(sme_##NAME##_##S)(void *vza, void *vzn, void *vzm, =
\
+#define DEF_IMOPH(P, NAME, S) \
+ void HELPER(P##_##NAME##_##S)(void *vza, void *vzn, void *vzm, =
\
void *vpn, void *vpm, uint32_t desc) =
\
{ do_imopa_##S(vza, vzn, vzm, vpn, vpm, desc, NAME##_##S); }
=20
-DEF_IMOPH(smopa, s)
-DEF_IMOPH(umopa, s)
-DEF_IMOPH(sumopa, s)
-DEF_IMOPH(usmopa, s)
+DEF_IMOPH(sme, smopa, s)
+DEF_IMOPH(sme, umopa, s)
+DEF_IMOPH(sme, sumopa, s)
+DEF_IMOPH(sme, usmopa, s)
=20
-DEF_IMOPH(smopa, d)
-DEF_IMOPH(umopa, d)
-DEF_IMOPH(sumopa, d)
-DEF_IMOPH(usmopa, d)
+DEF_IMOPH(sme, smopa, d)
+DEF_IMOPH(sme, umopa, d)
+DEF_IMOPH(sme, sumopa, d)
+DEF_IMOPH(sme, usmopa, d)
+
+static uint32_t bmopa_s(uint32_t n, uint32_t m, uint32_t a, uint8_t p, boo=
l neg)
+{
+ uint32_t sum =3D ctpop32(~(n ^ m));
+ if (neg) {
+ sum =3D -sum;
+ }
+ if (!(p & 1)) {
+ sum =3D 0;
+ }
+ return a + sum;
+}
+
+DEF_IMOPH(sme2, bmopa, s)
diff --git a/target/arm/tcg/translate-sme.c b/target/arm/tcg/translate-sme.c
index 8a901f158c..25139cb7aa 100644
--- a/target/arm/tcg/translate-sme.c
+++ b/target/arm/tcg/translate-sme.c
@@ -507,3 +507,5 @@ TRANS_FEAT(SMOPA_d, aa64_sme_i16i64, do_outprod, a, MO_=
64, gen_helper_sme_smopa_
TRANS_FEAT(UMOPA_d, aa64_sme_i16i64, do_outprod, a, MO_64, gen_helper_sme_=
umopa_d)
TRANS_FEAT(SUMOPA_d, aa64_sme_i16i64, do_outprod, a, MO_64, gen_helper_sme=
_sumopa_d)
TRANS_FEAT(USMOPA_d, aa64_sme_i16i64, do_outprod, a, MO_64, gen_helper_sme=
_usmopa_d)
+
+TRANS_FEAT(BMOPA, aa64_sme2, do_outprod, a, MO_32, gen_helper_sme2_bmopa_s)
diff --git a/target/arm/tcg/sme.decode b/target/arm/tcg/sme.decode
index 37bd0c6198..de8d04cb87 100644
--- a/target/arm/tcg/sme.decode
+++ b/target/arm/tcg/sme.decode
@@ -165,3 +165,5 @@ SMOPA_d 1010000 0 11 0 ..... ... ... ..... . 0 =
... @op_64
SUMOPA_d 1010000 0 11 1 ..... ... ... ..... . 0 ... @op_64
USMOPA_d 1010000 1 11 0 ..... ... ... ..... . 0 ... @op_64
UMOPA_d 1010000 1 11 1 ..... ... ... ..... . 0 ... @op_64
+
+BMOPA 1000000 0 10 0 ..... ... ... ..... . 10 .. @op_32
--=20
2.43.0