diff options
| author | David Hildenbrand <david@redhat.com> | 2021-06-08 11:23:22 +0200 |
|---|---|---|
| committer | Cornelia Huck <cohuck@redhat.com> | 2021-06-21 08:48:21 +0200 |
| commit | 2a785dfb5071fdb269c77aeb7fa3930e93d413ef (patch) | |
| tree | 40b14ca11a095a3345f5517da0ef2234f486ee31 | |
| parent | 4da79375c2a368bb548266e90e3d600afc05d165 (diff) | |
| download | qemu-2a785dfb5071fdb269c77aeb7fa3930e93d413ef.zip qemu-2a785dfb5071fdb269c77aeb7fa3930e93d413ef.tar.gz qemu-2a785dfb5071fdb269c77aeb7fa3930e93d413ef.tar.bz2 | |
s390x/tcg: Implement VECTOR BIT PERMUTE
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20210608092337.12221-12-david@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
| -rw-r--r-- | target/s390x/helper.h | 1 | ||||
| -rw-r--r-- | target/s390x/insn-data.def | 2 | ||||
| -rw-r--r-- | target/s390x/translate_vx.c.inc | 8 | ||||
| -rw-r--r-- | target/s390x/vec_helper.c | 22 |
4 files changed, 33 insertions, 0 deletions
diff --git a/target/s390x/helper.h b/target/s390x/helper.h index 0cfb82e..e99c964 100644 --- a/target/s390x/helper.h +++ b/target/s390x/helper.h @@ -126,6 +126,7 @@ DEF_HELPER_FLAGS_1(stck, TCG_CALL_NO_RWG_SE, i64, env) DEF_HELPER_FLAGS_3(probe_write_access, TCG_CALL_NO_WG, void, env, i64, i64) /* === Vector Support Instructions === */ +DEF_HELPER_FLAGS_4(gvec_vbperm, TCG_CALL_NO_RWG, void, ptr, cptr, cptr, i32) DEF_HELPER_FLAGS_4(vll, TCG_CALL_NO_WG, void, env, ptr, i64, i64) DEF_HELPER_FLAGS_4(gvec_vpk16, TCG_CALL_NO_RWG, void, ptr, cptr, cptr, i32) DEF_HELPER_FLAGS_4(gvec_vpk32, TCG_CALL_NO_RWG, void, ptr, cptr, cptr, i32) diff --git a/target/s390x/insn-data.def b/target/s390x/insn-data.def index 35a0086..1634a6b 100644 --- a/target/s390x/insn-data.def +++ b/target/s390x/insn-data.def @@ -989,6 +989,8 @@ /* === Vector Support Instructions === */ +/* VECTOR BIT PERMUTE */ + E(0xe785, VBPERM, VRR_c, VE, 0, 0, 0, 0, vbperm, 0, 0, IF_VEC) /* VECTOR GATHER ELEMENT */ E(0xe713, VGEF, VRV, V, la2, 0, 0, 0, vge, 0, ES_32, IF_VEC) E(0xe712, VGEG, VRV, V, la2, 0, 0, 0, vge, 0, ES_64, IF_VEC) diff --git a/target/s390x/translate_vx.c.inc b/target/s390x/translate_vx.c.inc index 91e2967..96283d4 100644 --- a/target/s390x/translate_vx.c.inc +++ b/target/s390x/translate_vx.c.inc @@ -327,6 +327,14 @@ static void gen_addi2_i64(TCGv_i64 dl, TCGv_i64 dh, TCGv_i64 al, TCGv_i64 ah, tcg_temp_free_i64(bh); } +static DisasJumpType op_vbperm(DisasContext *s, DisasOps *o) +{ + gen_gvec_3_ool(get_field(s, v1), get_field(s, v2), get_field(s, v3), 0, + gen_helper_gvec_vbperm); + + return DISAS_NEXT; +} + static DisasJumpType op_vge(DisasContext *s, DisasOps *o) { const uint8_t es = s->insn->data; diff --git a/target/s390x/vec_helper.c b/target/s390x/vec_helper.c index 986e7cc..599bab0 100644 --- a/target/s390x/vec_helper.c +++ b/target/s390x/vec_helper.c @@ -19,6 +19,28 @@ #include "exec/cpu_ldst.h" #include "exec/exec-all.h" +void HELPER(gvec_vbperm)(void *v1, const void *v2, const void *v3, + uint32_t desc) +{ + S390Vector tmp = {}; + uint16_t result = 0; + int i; + + for (i = 0; i < 16; i++) { + const uint8_t bit_nr = s390_vec_read_element8(v3, i); + uint16_t bit; + + if (bit_nr >= 128) { + continue; + } + bit = (s390_vec_read_element8(v2, bit_nr / 8) + >> (7 - (bit_nr % 8))) & 1; + result |= (bit << (15 - i)); + } + s390_vec_write_element16(&tmp, 3, result); + *(S390Vector *)v1 = tmp; +} + void HELPER(vll)(CPUS390XState *env, void *v1, uint64_t addr, uint64_t bytes) { if (likely(bytes >= 16)) { |