From 0987961da96a5f62de5f0519ceaa022c394207c1 Mon Sep 17 00:00:00 2001 From: David Hildenbrand Date: Tue, 8 Jun 2021 11:23:24 +0200 Subject: [PATCH] s390x/tcg: Implement 32/128 bit for VECTOR FP (ADD|DIVIDE|MULTIPLY|SUBTRACT) In case of 128bit, we always have a single element. Add new helpers for reading/writing 32/128 bit floats. Reviewed-by: Richard Henderson Signed-off-by: David Hildenbrand Message-Id: <20210608092337.12221-14-david@redhat.com> Signed-off-by: Cornelia Huck --- target/s390x/helper.h | 8 ++++ target/s390x/translate_vx.c.inc | 85 ++++++++++++++++++++++++++++++++++++----- target/s390x/vec_fpu_helper.c | 74 +++++++++++++++++++++++++++++++++-- 3 files changed, 153 insertions(+), 14 deletions(-) diff --git a/target/s390x/helper.h b/target/s390x/helper.h index e99c9643eb..2d5e382e61 100644 --- a/target/s390x/helper.h +++ b/target/s390x/helper.h @@ -247,7 +247,9 @@ DEF_HELPER_6(gvec_vstrc_cc_rt16, void, ptr, cptr, cptr, cptr, env, i32) DEF_HELPER_6(gvec_vstrc_cc_rt32, void, ptr, cptr, cptr, cptr, env, i32) /* === Vector Floating-Point Instructions */ +DEF_HELPER_FLAGS_5(gvec_vfa32, TCG_CALL_NO_WG, void, ptr, cptr, cptr, env, i32) DEF_HELPER_FLAGS_5(gvec_vfa64, TCG_CALL_NO_WG, void, ptr, cptr, cptr, env, i32) +DEF_HELPER_FLAGS_5(gvec_vfa128, TCG_CALL_NO_WG, void, ptr, cptr, cptr, env, i32) DEF_HELPER_4(gvec_wfc64, void, cptr, cptr, env, i32) DEF_HELPER_4(gvec_wfk64, void, cptr, cptr, env, i32) DEF_HELPER_FLAGS_5(gvec_vfce64, TCG_CALL_NO_WG, void, ptr, cptr, cptr, env, i32) @@ -260,15 +262,21 @@ DEF_HELPER_FLAGS_4(gvec_vcdg64, TCG_CALL_NO_WG, void, ptr, cptr, env, i32) DEF_HELPER_FLAGS_4(gvec_vcdlg64, TCG_CALL_NO_WG, void, ptr, cptr, env, i32) DEF_HELPER_FLAGS_4(gvec_vcgd64, TCG_CALL_NO_WG, void, ptr, cptr, env, i32) DEF_HELPER_FLAGS_4(gvec_vclgd64, TCG_CALL_NO_WG, void, ptr, cptr, env, i32) +DEF_HELPER_FLAGS_5(gvec_vfd32, TCG_CALL_NO_WG, void, ptr, cptr, cptr, env, i32) DEF_HELPER_FLAGS_5(gvec_vfd64, TCG_CALL_NO_WG, void, ptr, cptr, cptr, env, i32) +DEF_HELPER_FLAGS_5(gvec_vfd128, TCG_CALL_NO_WG, void, ptr, cptr, cptr, env, i32) DEF_HELPER_FLAGS_4(gvec_vfi64, TCG_CALL_NO_WG, void, ptr, cptr, env, i32) DEF_HELPER_FLAGS_4(gvec_vfll32, TCG_CALL_NO_WG, void, ptr, cptr, env, i32) DEF_HELPER_FLAGS_4(gvec_vflr64, TCG_CALL_NO_WG, void, ptr, cptr, env, i32) +DEF_HELPER_FLAGS_5(gvec_vfm32, TCG_CALL_NO_WG, void, ptr, cptr, cptr, env, i32) DEF_HELPER_FLAGS_5(gvec_vfm64, TCG_CALL_NO_WG, void, ptr, cptr, cptr, env, i32) +DEF_HELPER_FLAGS_5(gvec_vfm128, TCG_CALL_NO_WG, void, ptr, cptr, cptr, env, i32) DEF_HELPER_FLAGS_6(gvec_vfma64, TCG_CALL_NO_WG, void, ptr, cptr, cptr, cptr, env, i32) DEF_HELPER_FLAGS_6(gvec_vfms64, TCG_CALL_NO_WG, void, ptr, cptr, cptr, cptr, env, i32) DEF_HELPER_FLAGS_4(gvec_vfsq64, TCG_CALL_NO_WG, void, ptr, cptr, env, i32) +DEF_HELPER_FLAGS_5(gvec_vfs32, TCG_CALL_NO_WG, void, ptr, cptr, cptr, env, i32) DEF_HELPER_FLAGS_5(gvec_vfs64, TCG_CALL_NO_WG, void, ptr, cptr, cptr, env, i32) +DEF_HELPER_FLAGS_5(gvec_vfs128, TCG_CALL_NO_WG, void, ptr, cptr, cptr, env, i32) DEF_HELPER_4(gvec_vftci64, void, ptr, cptr, env, i32) #ifndef CONFIG_USER_ONLY diff --git a/target/s390x/translate_vx.c.inc b/target/s390x/translate_vx.c.inc index 6e75b40eb8..0fbd914b40 100644 --- a/target/s390x/translate_vx.c.inc +++ b/target/s390x/translate_vx.c.inc @@ -2501,29 +2501,94 @@ static DisasJumpType op_vfa(DisasContext *s, DisasOps *o) { const uint8_t fpf = get_field(s, m4); const uint8_t m5 = get_field(s, m5); - gen_helper_gvec_3_ptr *fn; - - if (fpf != FPF_LONG || extract32(m5, 0, 3)) { - gen_program_exception(s, PGM_SPECIFICATION); - return DISAS_NORETURN; - } + gen_helper_gvec_3_ptr *fn = NULL; switch (s->fields.op2) { case 0xe3: - fn = gen_helper_gvec_vfa64; + switch (fpf) { + case FPF_SHORT: + if (s390_has_feat(S390_FEAT_VECTOR_ENH)) { + fn = gen_helper_gvec_vfa32; + } + break; + case FPF_LONG: + fn = gen_helper_gvec_vfa64; + break; + case FPF_EXT: + if (s390_has_feat(S390_FEAT_VECTOR_ENH)) { + fn = gen_helper_gvec_vfa128; + } + break; + default: + break; + } break; case 0xe5: - fn = gen_helper_gvec_vfd64; + switch (fpf) { + case FPF_SHORT: + if (s390_has_feat(S390_FEAT_VECTOR_ENH)) { + fn = gen_helper_gvec_vfd32; + } + break; + case FPF_LONG: + fn = gen_helper_gvec_vfd64; + break; + case FPF_EXT: + if (s390_has_feat(S390_FEAT_VECTOR_ENH)) { + fn = gen_helper_gvec_vfd128; + } + break; + default: + break; + } break; case 0xe7: - fn = gen_helper_gvec_vfm64; + switch (fpf) { + case FPF_SHORT: + if (s390_has_feat(S390_FEAT_VECTOR_ENH)) { + fn = gen_helper_gvec_vfm32; + } + break; + case FPF_LONG: + fn = gen_helper_gvec_vfm64; + break; + case FPF_EXT: + if (s390_has_feat(S390_FEAT_VECTOR_ENH)) { + fn = gen_helper_gvec_vfm128; + } + break; + default: + break; + } break; case 0xe2: - fn = gen_helper_gvec_vfs64; + switch (fpf) { + case FPF_SHORT: + if (s390_has_feat(S390_FEAT_VECTOR_ENH)) { + fn = gen_helper_gvec_vfs32; + } + break; + case FPF_LONG: + fn = gen_helper_gvec_vfs64; + break; + case FPF_EXT: + if (s390_has_feat(S390_FEAT_VECTOR_ENH)) { + fn = gen_helper_gvec_vfs128; + } + break; + default: + break; + } break; default: g_assert_not_reached(); } + + if (!fn || extract32(m5, 0, 3)) { + gen_program_exception(s, PGM_SPECIFICATION); + return DISAS_NORETURN; + } + gen_gvec_3_ptr(get_field(s, v1), get_field(s, v2), get_field(s, v3), cpu_env, m5, fn); return DISAS_NEXT; diff --git a/target/s390x/vec_fpu_helper.c b/target/s390x/vec_fpu_helper.c index 4af59ea66c..3484c161ba 100644 --- a/target/s390x/vec_fpu_helper.c +++ b/target/s390x/vec_fpu_helper.c @@ -78,16 +78,38 @@ static void handle_ieee_exc(CPUS390XState *env, uint8_t vxc, uint8_t vec_exc, } } +static float32 s390_vec_read_float32(const S390Vector *v, uint8_t enr) +{ + return make_float32(s390_vec_read_element32(v, enr)); +} + static float64 s390_vec_read_float64(const S390Vector *v, uint8_t enr) { return make_float64(s390_vec_read_element64(v, enr)); } +static float128 s390_vec_read_float128(const S390Vector *v) +{ + return make_float128(s390_vec_read_element64(v, 0), + s390_vec_read_element64(v, 1)); +} + +static void s390_vec_write_float32(S390Vector *v, uint8_t enr, float32 data) +{ + return s390_vec_write_element32(v, enr, data); +} + static void s390_vec_write_float64(S390Vector *v, uint8_t enr, float64 data) { return s390_vec_write_element64(v, enr, data); } +static void s390_vec_write_float128(S390Vector *v, float128 data) +{ + s390_vec_write_element64(v, 0, data.high); + s390_vec_write_element64(v, 1, data.low); +} + typedef float64 (*vop64_2_fn)(float64 a, float_status *s); static void vop64_2(S390Vector *v1, const S390Vector *v2, CPUS390XState *env, bool s, bool XxC, uint8_t erm, vop64_2_fn fn, @@ -160,6 +182,29 @@ DEF_GVEC_VOP2_64(vclgd) DEF_GVEC_VOP2(vfi, round_to_int) DEF_GVEC_VOP2(vfsq, sqrt) +typedef float32 (*vop32_3_fn)(float32 a, float32 b, float_status *s); +static void vop32_3(S390Vector *v1, const S390Vector *v2, const S390Vector *v3, + CPUS390XState *env, bool s, vop32_3_fn fn, + uintptr_t retaddr) +{ + uint8_t vxc, vec_exc = 0; + S390Vector tmp = {}; + int i; + + for (i = 0; i < 4; i++) { + const float32 a = s390_vec_read_float32(v2, i); + const float32 b = s390_vec_read_float32(v3, i); + + s390_vec_write_float32(&tmp, i, fn(a, b, &env->fpu_status)); + vxc = check_ieee_exc(env, i, false, &vec_exc); + if (s || vxc) { + break; + } + } + handle_ieee_exc(env, vxc, vec_exc, retaddr); + *v1 = tmp; +} + typedef float64 (*vop64_3_fn)(float64 a, float64 b, float_status *s); static void vop64_3(S390Vector *v1, const S390Vector *v2, const S390Vector *v3, CPUS390XState *env, bool s, vop64_3_fn fn, @@ -183,15 +228,36 @@ static void vop64_3(S390Vector *v1, const S390Vector *v2, const S390Vector *v3, *v1 = tmp; } -#define DEF_GVEC_VOP3(NAME, OP) \ -void HELPER(gvec_##NAME##64)(void *v1, const void *v2, const void *v3, \ - CPUS390XState *env, uint32_t desc) \ +typedef float128 (*vop128_3_fn)(float128 a, float128 b, float_status *s); +static void vop128_3(S390Vector *v1, const S390Vector *v2, const S390Vector *v3, + CPUS390XState *env, bool s, vop128_3_fn fn, + uintptr_t retaddr) +{ + const float128 a = s390_vec_read_float128(v2); + const float128 b = s390_vec_read_float128(v3); + uint8_t vxc, vec_exc = 0; + S390Vector tmp = {}; + + s390_vec_write_float128(&tmp, fn(a, b, &env->fpu_status)); + vxc = check_ieee_exc(env, 0, false, &vec_exc); + handle_ieee_exc(env, vxc, vec_exc, retaddr); + *v1 = tmp; +} + +#define DEF_GVEC_VOP3_B(NAME, OP, BITS) \ +void HELPER(gvec_##NAME##BITS)(void *v1, const void *v2, const void *v3, \ + CPUS390XState *env, uint32_t desc) \ { \ const bool se = extract32(simd_data(desc), 3, 1); \ \ - vop64_3(v1, v2, v3, env, se, float64_##OP, GETPC()); \ + vop##BITS##_3(v1, v2, v3, env, se, float##BITS##_##OP, GETPC()); \ } +#define DEF_GVEC_VOP3(NAME, OP) \ +DEF_GVEC_VOP3_B(NAME, OP, 32) \ +DEF_GVEC_VOP3_B(NAME, OP, 64) \ +DEF_GVEC_VOP3_B(NAME, OP, 128) + DEF_GVEC_VOP3(vfa, add) DEF_GVEC_VOP3(vfs, sub) DEF_GVEC_VOP3(vfd, div) -- 2.11.4.GIT