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target/arm: Convert Cryptographic 3-register SHA512 to decodetree 

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20240524232121.284515-13-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Richard Henderson 2024-05-24 16:20:26 -07:00 committed by Peter Maydell
parent 66d1e1a402
commit 7010e36676
2 changed files with 32 additions and 76 deletions
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11
target/arm/tcg/a64.decode
View File

@ -31,6 +31,7 @@
@rr_q1e0 ........ ........ ...... rn:5 rd:5 &qrr_e q=1 esz=0
@r2r_q1e0 ........ ........ ...... rm:5 rd:5 &qrrr_e rn=%rd q=1 esz=0
@rrr_q1e0 ........ ... rm:5 ...... rn:5 rd:5 &qrrr_e q=1 esz=0
@rrr_q1e3 ........ ... rm:5 ...... rn:5 rd:5 &qrrr_e q=1 esz=3
### Data Processing - Immediate
@ -620,3 +621,13 @@ SHA256SU1 0101 1110 000 ..... 011000 ..... ..... @rrr_q1e0
SHA1H 0101 1110 0010 1000 0000 10 ..... ..... @rr_q1e0
SHA1SU1 0101 1110 0010 1000 0001 10 ..... ..... @rr_q1e0
SHA256SU0 0101 1110 0010 1000 0010 10 ..... ..... @rr_q1e0
### Cryptographic three-register SHA512
SHA512H 1100 1110 011 ..... 100000 ..... ..... @rrr_q1e0
SHA512H2 1100 1110 011 ..... 100001 ..... ..... @rrr_q1e0
SHA512SU1 1100 1110 011 ..... 100010 ..... ..... @rrr_q1e0
RAX1 1100 1110 011 ..... 100011 ..... ..... @rrr_q1e3
SM3PARTW1 1100 1110 011 ..... 110000 ..... ..... @rrr_q1e0
SM3PARTW2 1100 1110 011 ..... 110001 ..... ..... @rrr_q1e0
SM4EKEY 1100 1110 011 ..... 110010 ..... ..... @rrr_q1e0

97
target/arm/tcg/translate-a64.c
View File

@ -1341,6 +1341,17 @@ static bool do_gvec_op3_ool(DisasContext *s, arg_qrrr_e *a, int data,
return true;
}
static bool do_gvec_fn3(DisasContext *s, arg_qrrr_e *a, GVecGen3Fn *fn)
{
if (!a->q && a->esz == MO_64) {
return false;
}
if (fp_access_check(s)) {
gen_gvec_fn3(s, a->q, a->rd, a->rn, a->rm, fn, a->esz);
}
return true;
}
/*
* This utility function is for doing register extension with an
* optional shift. You will likely want to pass a temporary for the
@ -4589,7 +4600,7 @@ static bool trans_EXTR(DisasContext *s, arg_extract *a)
}
/*
* Cryptographic AES, SHA
* Cryptographic AES, SHA, SHA512
*/
TRANS_FEAT(AESE, aa64_aes, do_gvec_op3_ool, a, 0, gen_helper_crypto_aese)
@ -4610,6 +4621,15 @@ TRANS_FEAT(SHA1H, aa64_sha1, do_gvec_op2_ool, a, 0, gen_helper_crypto_sha1h)
TRANS_FEAT(SHA1SU1, aa64_sha1, do_gvec_op2_ool, a, 0, gen_helper_crypto_sha1su1)
TRANS_FEAT(SHA256SU0, aa64_sha256, do_gvec_op2_ool, a, 0, gen_helper_crypto_sha256su0)
TRANS_FEAT(SHA512H, aa64_sha512, do_gvec_op3_ool, a, 0, gen_helper_crypto_sha512h)
TRANS_FEAT(SHA512H2, aa64_sha512, do_gvec_op3_ool, a, 0, gen_helper_crypto_sha512h2)
TRANS_FEAT(SHA512SU1, aa64_sha512, do_gvec_op3_ool, a, 0, gen_helper_crypto_sha512su1)
TRANS_FEAT(RAX1, aa64_sha3, do_gvec_fn3, a, gen_gvec_rax1)
TRANS_FEAT(SM3PARTW1, aa64_sm3, do_gvec_op3_ool, a, 0, gen_helper_crypto_sm3partw1)
TRANS_FEAT(SM3PARTW2, aa64_sm3, do_gvec_op3_ool, a, 0, gen_helper_crypto_sm3partw2)
TRANS_FEAT(SM4EKEY, aa64_sm4, do_gvec_op3_ool, a, 0, gen_helper_crypto_sm4ekey)
/* Shift a TCGv src by TCGv shift_amount, put result in dst.
* Note that it is the caller's responsibility to ensure that the
* shift amount is in range (ie 0..31 or 0..63) and provide the ARM
@ -13510,80 +13530,6 @@ static void disas_simd_indexed(DisasContext *s, uint32_t insn)
}
}
/* Crypto three-reg SHA512
* 31 21 20 16 15 14 13 12 11 10 9 5 4 0
* +-----------------------+------+---+---+-----+--------+------+------+
* | 1 1 0 0 1 1 1 0 0 1 1 | Rm | 1 | O | 0 0 | opcode | Rn | Rd |
* +-----------------------+------+---+---+-----+--------+------+------+
*/
static void disas_crypto_three_reg_sha512(DisasContext *s, uint32_t insn)
{
int opcode = extract32(insn, 10, 2);
int o = extract32(insn, 14, 1);
int rm = extract32(insn, 16, 5);
int rn = extract32(insn, 5, 5);
int rd = extract32(insn, 0, 5);
bool feature;
gen_helper_gvec_3 *oolfn = NULL;
GVecGen3Fn *gvecfn = NULL;
if (o == 0) {
switch (opcode) {
case 0: /* SHA512H */
feature = dc_isar_feature(aa64_sha512, s);
oolfn = gen_helper_crypto_sha512h;
break;
case 1: /* SHA512H2 */
feature = dc_isar_feature(aa64_sha512, s);
oolfn = gen_helper_crypto_sha512h2;
break;
case 2: /* SHA512SU1 */
feature = dc_isar_feature(aa64_sha512, s);
oolfn = gen_helper_crypto_sha512su1;
break;
case 3: /* RAX1 */
feature = dc_isar_feature(aa64_sha3, s);
gvecfn = gen_gvec_rax1;
break;
default:
g_assert_not_reached();
}
} else {
switch (opcode) {
case 0: /* SM3PARTW1 */
feature = dc_isar_feature(aa64_sm3, s);
oolfn = gen_helper_crypto_sm3partw1;
break;
case 1: /* SM3PARTW2 */
feature = dc_isar_feature(aa64_sm3, s);
oolfn = gen_helper_crypto_sm3partw2;
break;
case 2: /* SM4EKEY */
feature = dc_isar_feature(aa64_sm4, s);
oolfn = gen_helper_crypto_sm4ekey;
break;
default:
unallocated_encoding(s);
return;
}
}
if (!feature) {
unallocated_encoding(s);
return;
}
if (!fp_access_check(s)) {
return;
}
if (oolfn) {
gen_gvec_op3_ool(s, true, rd, rn, rm, 0, oolfn);
} else {
gen_gvec_fn3(s, true, rd, rn, rm, gvecfn, MO_64);
}
}
/* Crypto two-reg SHA512
* 31 12 11 10 9 5 4 0
* +-----------------------------------------+--------+------+------+
@ -13804,7 +13750,6 @@ static const AArch64DecodeTable data_proc_simd[] = {
{ 0x5e000400, 0xdfe08400, disas_simd_scalar_copy },
{ 0x5f000000, 0xdf000400, disas_simd_indexed }, /* scalar indexed */
{ 0x5f000400, 0xdf800400, disas_simd_scalar_shift_imm },
{ 0xce608000, 0xffe0b000, disas_crypto_three_reg_sha512 },
{ 0xcec08000, 0xfffff000, disas_crypto_two_reg_sha512 },
{ 0xce000000, 0xff808000, disas_crypto_four_reg },
{ 0xce800000, 0xffe00000, disas_crypto_xar },