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[PATCH RFC 1/3] target/arm: Implement SVE2 AESMC, AESIMC
From: |
Stephen Long |
Subject: |
[PATCH RFC 1/3] target/arm: Implement SVE2 AESMC, AESIMC |
Date: |
Thu, 23 Apr 2020 18:37:37 -0400 |
Signed-off-by: Stephen Long <address@hidden>
---
target/arm/helper-sve.h | 3 +++
target/arm/sve.decode | 10 ++++++++++
target/arm/sve_helper.c | 13 +++++++++++++
target/arm/translate-sve.c | 18 ++++++++++++++++++
4 files changed, 44 insertions(+)
diff --git a/target/arm/helper-sve.h b/target/arm/helper-sve.h
index f6ae814021..6e8421991c 100644
--- a/target/arm/helper-sve.h
+++ b/target/arm/helper-sve.h
@@ -2687,3 +2687,6 @@ DEF_HELPER_FLAGS_5(sve2_sqrdcmlah_zzzz_s, TCG_CALL_NO_RWG,
void, ptr, ptr, ptr, ptr, i32)
DEF_HELPER_FLAGS_5(sve2_sqrdcmlah_zzzz_d, TCG_CALL_NO_RWG,
void, ptr, ptr, ptr, ptr, i32)
+
+DEF_HELPER_FLAGS_3(sve2_aesmc, TCG_CALL_NO_RWG, void, ptr, ptr, i32)
+DEF_HELPER_FLAGS_3(sve2_aesimc, TCG_CALL_NO_RWG, void, ptr, ptr, i32)
diff --git a/target/arm/sve.decode b/target/arm/sve.decode
index 3a2a4a7f1c..a83420e690 100644
--- a/target/arm/sve.decode
+++ b/target/arm/sve.decode
@@ -92,6 +92,10 @@
# Named instruction formats. These are generally used to
# reduce the amount of duplication between instruction patterns.
+# One operand with unused vector element size
+@rdn_e0 ........ .. ........... . ..... rd:5 \
+ &rr_esz rn=%reg_movprfx esz=0
+
# Two operand with unused vector element size
@pd_pn_e0 ........ ........ ....... rn:4 . rd:4 &rr_esz esz=0
@@ -1387,3 +1391,9 @@ UMLSLT_zzzw 01000100 .. 0 ..... 010 111 ..... .....
@rda_rn_rm
CMLA_zzzz 01000100 esz:2 0 rm:5 0010 rot:2 rn:5 rd:5 ra=%reg_movprfx
SQRDCMLAH_zzzz 01000100 esz:2 0 rm:5 0011 rot:2 rn:5 rd:5 ra=%reg_movprfx
+
+#### SVE2 Crypto Extensions
+
+## SVE2 crypto unary operations
+AESMC 01000101 00 10000011100 0 00000 ..... @rdn_e0
+AESIMC 01000101 00 10000011100 1 00000 ..... @rdn_e0
diff --git a/target/arm/sve_helper.c b/target/arm/sve_helper.c
index 55e2c32f03..f25bb5338d 100644
--- a/target/arm/sve_helper.c
+++ b/target/arm/sve_helper.c
@@ -7428,3 +7428,16 @@ void HELPER(sve2_xar_s)(void *vd, void *vn, void *vm,
uint32_t desc)
d[i] = ror32(n[i] ^ m[i], shr);
}
}
+
+#define DO_CRYPTO_AESMC(NAME, DECRYPT) \
+void HELPER(NAME)(void *vd, void *vn, uint32_t desc) \
+{ \
+ intptr_t i, opr_sz = simd_oprsz(desc); \
+ void *d = vd, *n = vn; \
+ for (i = 0; i < opr_sz; i += 16) { \
+ HELPER(crypto_aesmc)(vd + i, vn + i, DECRYPT); \
+ }
+}
+
+DO_CRYPTO_AESMC(sve2_aesmc, 0);
+DO_CRYPTO_AESMC(sve2_aesimc, 1);
diff --git a/target/arm/translate-sve.c b/target/arm/translate-sve.c
index 20eb588cb3..03463308ca 100644
--- a/target/arm/translate-sve.c
+++ b/target/arm/translate-sve.c
@@ -7882,3 +7882,21 @@ static bool trans_SQRDCMLAH_zzzz(DisasContext *s,
arg_CMLA_zzzz *a)
};
return do_sve2_zzzz_fn(s, a->rd, a->rn, a->rm, a->ra, fns[a->esz], a->rot);
}
+
+#define DO_SVE2_AES_CRYPTO(NAME, name) \
+static bool trans_##NAME(DisasContext *s, arg_rr_esz *a) \
+{ \
+ if (!dc_isar_feature(aa64_sve2_aes, s)) { \
+ return false; \
+ } \
+ if (sve_access_check(s)) { \
+ unsigned vsz = vec_full_reg_size(s); \
+ tcg_gen_gvec_2_ool(vec_full_reg_offset(s, a->rd), \
+ vec_full_reg_offset(s, a->rn), \
+ vsz, vsz, 0, gen_helper_sve2_##name); \
+ } \
+ return true; \
+}
+
+DO_SVE2_AES_CRYPTO(AESMC, aesmc)
+DO_SVE2_AES_CRYPTO(AESIMC, aesimc)
--
2.17.1