From 1d26a02af0464c50150a4717efd2482ad9958286 Mon Sep 17 00:00:00 2001 From: David Miller Date: Thu, 28 Apr 2022 11:47:04 +0200 Subject: [PATCH] target/s390x: vxeh2: vector {load, store} elements reversed Signed-off-by: David Miller Signed-off-by: Richard Henderson Signed-off-by: David Hildenbrand Tested-by: Thomas Huth Reviewed-by: David Hildenbrand Message-Id: <20220428094708.84835-10-david@redhat.com> Signed-off-by: Thomas Huth --- target/s390x/tcg/insn-data.def | 4 ++ target/s390x/tcg/translate_vx.c.inc | 84 +++++++++++++++++++++++++++++++++++++ 2 files changed, 88 insertions(+) diff --git a/target/s390x/tcg/insn-data.def b/target/s390x/tcg/insn-data.def index 98a31a557d..b524541a7d 100644 --- a/target/s390x/tcg/insn-data.def +++ b/target/s390x/tcg/insn-data.def @@ -1037,6 +1037,8 @@ E(0xe741, VLEIH, VRI_a, V, 0, 0, 0, 0, vlei, 0, ES_16, IF_VEC) E(0xe743, VLEIF, VRI_a, V, 0, 0, 0, 0, vlei, 0, ES_32, IF_VEC) E(0xe742, VLEIG, VRI_a, V, 0, 0, 0, 0, vlei, 0, ES_64, IF_VEC) +/* VECTOR LOAD ELEMENTS REVERSED */ + F(0xe607, VLER, VRX, VE2, la2, 0, 0, 0, vler, 0, IF_VEC) /* VECTOR LOAD GR FROM VR ELEMENT */ F(0xe721, VLGV, VRS_c, V, la2, 0, r1, 0, vlgv, 0, IF_VEC) /* VECTOR LOAD LOGICAL ELEMENT AND ZERO */ @@ -1082,6 +1084,8 @@ E(0xe709, VSTEH, VRX, V, la2, 0, 0, 0, vste, 0, ES_16, IF_VEC) E(0xe70b, VSTEF, VRX, V, la2, 0, 0, 0, vste, 0, ES_32, IF_VEC) E(0xe70a, VSTEG, VRX, V, la2, 0, 0, 0, vste, 0, ES_64, IF_VEC) +/* VECTOR STORE ELEMENTS REVERSED */ + F(0xe60f, VSTER, VRX, VE2, la2, 0, 0, 0, vster, 0, IF_VEC) /* VECTOR STORE MULTIPLE */ F(0xe73e, VSTM, VRS_a, V, la2, 0, 0, 0, vstm, 0, IF_VEC) /* VECTOR STORE WITH LENGTH */ diff --git a/target/s390x/tcg/translate_vx.c.inc b/target/s390x/tcg/translate_vx.c.inc index cb6540673d..7667a995c8 100644 --- a/target/s390x/tcg/translate_vx.c.inc +++ b/target/s390x/tcg/translate_vx.c.inc @@ -492,6 +492,46 @@ static DisasJumpType op_vlei(DisasContext *s, DisasOps *o) return DISAS_NEXT; } +static DisasJumpType op_vler(DisasContext *s, DisasOps *o) +{ + const uint8_t es = get_field(s, m3); + + if (es < ES_16 || es > ES_64) { + gen_program_exception(s, PGM_SPECIFICATION); + return DISAS_NORETURN; + } + + TCGv_i64 t0 = tcg_temp_new_i64(); + TCGv_i64 t1 = tcg_temp_new_i64(); + + /* Begin with the two doublewords swapped... */ + tcg_gen_qemu_ld_i64(t1, o->addr1, get_mem_index(s), MO_TEUQ); + gen_addi_and_wrap_i64(s, o->addr1, o->addr1, 8); + tcg_gen_qemu_ld_i64(t0, o->addr1, get_mem_index(s), MO_TEUQ); + + /* ... then swap smaller elements within the doublewords as required. */ + switch (es) { + case MO_16: + tcg_gen_hswap_i64(t1, t1); + tcg_gen_hswap_i64(t0, t0); + break; + case MO_32: + tcg_gen_wswap_i64(t1, t1); + tcg_gen_wswap_i64(t0, t0); + break; + case MO_64: + break; + default: + g_assert_not_reached(); + } + + write_vec_element_i64(t0, get_field(s, v1), 0, ES_64); + write_vec_element_i64(t1, get_field(s, v1), 1, ES_64); + tcg_temp_free(t0); + tcg_temp_free(t1); + return DISAS_NEXT; +} + static DisasJumpType op_vlgv(DisasContext *s, DisasOps *o) { const uint8_t es = get_field(s, m4); @@ -976,6 +1016,50 @@ static DisasJumpType op_vste(DisasContext *s, DisasOps *o) return DISAS_NEXT; } +static DisasJumpType op_vster(DisasContext *s, DisasOps *o) +{ + const uint8_t es = get_field(s, m3); + TCGv_i64 t0, t1; + + if (es < ES_16 || es > ES_64) { + gen_program_exception(s, PGM_SPECIFICATION); + return DISAS_NORETURN; + } + + /* Probe write access before actually modifying memory */ + gen_helper_probe_write_access(cpu_env, o->addr1, tcg_constant_i64(16)); + + /* Begin with the two doublewords swapped... */ + t0 = tcg_temp_new_i64(); + t1 = tcg_temp_new_i64(); + read_vec_element_i64(t1, get_field(s, v1), 0, ES_64); + read_vec_element_i64(t0, get_field(s, v1), 1, ES_64); + + /* ... then swap smaller elements within the doublewords as required. */ + switch (es) { + case MO_16: + tcg_gen_hswap_i64(t1, t1); + tcg_gen_hswap_i64(t0, t0); + break; + case MO_32: + tcg_gen_wswap_i64(t1, t1); + tcg_gen_wswap_i64(t0, t0); + break; + case MO_64: + break; + default: + g_assert_not_reached(); + } + + tcg_gen_qemu_st_i64(t0, o->addr1, get_mem_index(s), MO_TEUQ); + gen_addi_and_wrap_i64(s, o->addr1, o->addr1, 8); + tcg_gen_qemu_st_i64(t1, o->addr1, get_mem_index(s), MO_TEUQ); + + tcg_temp_free(t0); + tcg_temp_free(t1); + return DISAS_NEXT; +} + static DisasJumpType op_vstm(DisasContext *s, DisasOps *o) { const uint8_t v3 = get_field(s, v3); -- 2.11.0