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Wed, 30 Sep 2020 14:55:52 +0000 (UTC) Received: from t480s.redhat.com (ovpn-113-220.ams2.redhat.com [10.36.113.220]) by smtp.corp.redhat.com (Postfix) with ESMTP id 572285C1C4; Wed, 30 Sep 2020 14:55:50 +0000 (UTC) From: David Hildenbrand To: qemu-devel@nongnu.org Subject: [PATCH v1 09/20] s390x/tcg: Implement 32/128 bit for VECTOR FP COMPARE * Date: Wed, 30 Sep 2020 16:55:12 +0200 Message-Id: <20200930145523.71087-10-david@redhat.com> In-Reply-To: <20200930145523.71087-1-david@redhat.com> References: <20200930145523.71087-1-david@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=david@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=216.205.24.124; envelope-from=david@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/09/30 00:26:33 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -25 X-Spam_score: -2.6 X-Spam_bar: -- X-Spam_report: (-2.6 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.469, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H5=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: qemu-s390x@nongnu.org, Cornelia Huck , Richard Henderson , Thomas Huth , David Hildenbrand Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" In addition to 32/128bit variants, we also have to support the "Signal-on-QNaN (SQ)" bit ... let's pass it as a simple flag, I don't feel like duplicating all helpers and coming up with names like "...s_cc_sq". Signed-off-by: David Hildenbrand --- target/s390x/helper.h | 18 +++ target/s390x/translate_vx.c.inc | 91 +++++++++--- target/s390x/vec_fpu_helper.c | 250 ++++++++++++++++++++++---------- 3 files changed, 258 insertions(+), 101 deletions(-) diff --git a/target/s390x/helper.h b/target/s390x/helper.h index 6bf4d3e7d0..538d55420b 100644 --- a/target/s390x/helper.h +++ b/target/s390x/helper.h @@ -258,18 +258,36 @@ DEF_HELPER_4(gvec_wfc64, void, cptr, cptr, env, i32) DEF_HELPER_4(gvec_wfk64, void, cptr, cptr, env, i32) DEF_HELPER_4(gvec_wfc128, void, cptr, cptr, env, i32) DEF_HELPER_4(gvec_wfk128, void, cptr, cptr, env, i32) +DEF_HELPER_FLAGS_5(gvec_vfce32, TCG_CALL_NO_WG, void, ptr, cptr, cptr, env, i32) +DEF_HELPER_FLAGS_5(gvec_vfce32s, TCG_CALL_NO_WG, void, ptr, cptr, cptr, env, i32) DEF_HELPER_FLAGS_5(gvec_vfce64, TCG_CALL_NO_WG, void, ptr, cptr, cptr, env, i32) DEF_HELPER_FLAGS_5(gvec_vfce64s, TCG_CALL_NO_WG, void, ptr, cptr, cptr, env, i32) +DEF_HELPER_FLAGS_5(gvec_vfce128, TCG_CALL_NO_WG, void, ptr, cptr, cptr, env, i32) +DEF_HELPER_5(gvec_vfce32_cc, void, ptr, cptr, cptr, env, i32) +DEF_HELPER_5(gvec_vfce32s_cc, void, ptr, cptr, cptr, env, i32) DEF_HELPER_5(gvec_vfce64_cc, void, ptr, cptr, cptr, env, i32) DEF_HELPER_5(gvec_vfce64s_cc, void, ptr, cptr, cptr, env, i32) +DEF_HELPER_5(gvec_vfce128_cc, void, ptr, cptr, cptr, env, i32) +DEF_HELPER_FLAGS_5(gvec_vfch32, TCG_CALL_NO_WG, void, ptr, cptr, cptr, env, i32) +DEF_HELPER_FLAGS_5(gvec_vfch32s, TCG_CALL_NO_WG, void, ptr, cptr, cptr, env, i32) DEF_HELPER_FLAGS_5(gvec_vfch64, TCG_CALL_NO_WG, void, ptr, cptr, cptr, env, i32) DEF_HELPER_FLAGS_5(gvec_vfch64s, TCG_CALL_NO_WG, void, ptr, cptr, cptr, env, i32) +DEF_HELPER_FLAGS_5(gvec_vfch128, TCG_CALL_NO_WG, void, ptr, cptr, cptr, env, i32) +DEF_HELPER_5(gvec_vfch32_cc, void, ptr, cptr, cptr, env, i32) +DEF_HELPER_5(gvec_vfch32s_cc, void, ptr, cptr, cptr, env, i32) DEF_HELPER_5(gvec_vfch64_cc, void, ptr, cptr, cptr, env, i32) DEF_HELPER_5(gvec_vfch64s_cc, void, ptr, cptr, cptr, env, i32) +DEF_HELPER_5(gvec_vfch128_cc, void, ptr, cptr, cptr, env, i32) +DEF_HELPER_FLAGS_5(gvec_vfche32, TCG_CALL_NO_WG, void, ptr, cptr, cptr, env, i32) +DEF_HELPER_FLAGS_5(gvec_vfche32s, TCG_CALL_NO_WG, void, ptr, cptr, cptr, env, i32) DEF_HELPER_FLAGS_5(gvec_vfche64, TCG_CALL_NO_WG, void, ptr, cptr, cptr, env, i32) DEF_HELPER_FLAGS_5(gvec_vfche64s, TCG_CALL_NO_WG, void, ptr, cptr, cptr, env, i32) +DEF_HELPER_FLAGS_5(gvec_vfche128, TCG_CALL_NO_WG, void, ptr, cptr, cptr, env, i32) +DEF_HELPER_5(gvec_vfche32_cc, void, ptr, cptr, cptr, env, i32) +DEF_HELPER_5(gvec_vfche32s_cc, void, ptr, cptr, cptr, env, i32) DEF_HELPER_5(gvec_vfche64_cc, void, ptr, cptr, cptr, env, i32) DEF_HELPER_5(gvec_vfche64s_cc, void, ptr, cptr, cptr, env, i32) +DEF_HELPER_5(gvec_vfche128_cc, void, ptr, cptr, cptr, env, i32) DEF_HELPER_FLAGS_4(gvec_vcdg64, TCG_CALL_NO_WG, void, ptr, cptr, env, i32) DEF_HELPER_FLAGS_4(gvec_vcdg64s, TCG_CALL_NO_WG, void, ptr, cptr, env, i32) DEF_HELPER_FLAGS_4(gvec_vcdlg64, TCG_CALL_NO_WG, void, ptr, cptr, env, i32) diff --git a/target/s390x/translate_vx.c.inc b/target/s390x/translate_vx.c.inc index cc745784e5..fd1cd6f6d5 100644 --- a/target/s390x/translate_vx.c.inc +++ b/target/s390x/translate_vx.c.inc @@ -2646,45 +2646,90 @@ static DisasJumpType op_vfc(DisasContext *s, DisasOps *o) const uint8_t m5 = get_field(s, m5); const uint8_t m6 = get_field(s, m6); const bool se = extract32(m5, 3, 1); + const bool sq = extract32(m5, 2, 1); const bool cs = extract32(m6, 0, 1); - gen_helper_gvec_3_ptr *fn; - - if (fpf != FPF_LONG || extract32(m5, 0, 3) || extract32(m6, 1, 3)) { - gen_program_exception(s, PGM_SPECIFICATION); - return DISAS_NORETURN; - } + gen_helper_gvec_3_ptr *fn = NULL; - if (cs) { - switch (s->fields.op2) { - case 0xe8: - fn = se ? gen_helper_gvec_vfce64s_cc : gen_helper_gvec_vfce64_cc; + switch (s->fields.op2) { + case 0xe8: + switch (fpf) { + case FPF_SHORT: + fn = se ? gen_helper_gvec_vfce32s : gen_helper_gvec_vfce32; + if (cs) { + fn = se ? gen_helper_gvec_vfce32s_cc : + gen_helper_gvec_vfce32_cc; + } break; - case 0xeb: - fn = se ? gen_helper_gvec_vfch64s_cc : gen_helper_gvec_vfch64_cc; + case FPF_LONG: + fn = se ? gen_helper_gvec_vfce64s : gen_helper_gvec_vfce64; + if (cs) { + fn = se ? gen_helper_gvec_vfce64s_cc : + gen_helper_gvec_vfce64_cc; + } break; - case 0xea: - fn = se ? gen_helper_gvec_vfche64s_cc : gen_helper_gvec_vfche64_cc; + case FPF_EXT: + fn = cs ? gen_helper_gvec_vfce128_cc : gen_helper_gvec_vfce128; break; default: - g_assert_not_reached(); + break; } - } else { - switch (s->fields.op2) { - case 0xe8: - fn = se ? gen_helper_gvec_vfce64s : gen_helper_gvec_vfce64; + break; + case 0xeb: + switch (fpf) { + case FPF_SHORT: + fn = se ? gen_helper_gvec_vfch32s : gen_helper_gvec_vfch32; + if (cs) { + fn = se ? gen_helper_gvec_vfch32s_cc : gen_helper_gvec_vfch32_cc; + } break; - case 0xeb: + case FPF_LONG: fn = se ? gen_helper_gvec_vfch64s : gen_helper_gvec_vfch64; + if (cs) { + fn = se ? gen_helper_gvec_vfch64s_cc : gen_helper_gvec_vfch64_cc; + } + break; + case FPF_EXT: + fn = cs ? gen_helper_gvec_vfch128_cc : gen_helper_gvec_vfch128; break; - case 0xea: + default: + break; + } + break; + case 0xea: + switch (fpf) { + case FPF_SHORT: + fn = se ? gen_helper_gvec_vfche32s : gen_helper_gvec_vfche32; + if (cs) { + fn = se ? gen_helper_gvec_vfche32s_cc : + gen_helper_gvec_vfche32_cc; + } + break; + case FPF_LONG: fn = se ? gen_helper_gvec_vfche64s : gen_helper_gvec_vfche64; + if (cs) { + fn = se ? gen_helper_gvec_vfche64s_cc : + gen_helper_gvec_vfche64_cc; + } + break; + case FPF_EXT: + fn = cs ? gen_helper_gvec_vfche128_cc : gen_helper_gvec_vfche128; break; default: - g_assert_not_reached(); + break; } + default: + break; } + + if (!fn || extract32(m5, 0, 2) || extract32(m6, 1, 3) || + (!s390_has_feat(S390_FEAT_VECTOR_ENH) && (fpf != FPF_LONG || sq))) { + gen_program_exception(s, PGM_SPECIFICATION); + return DISAS_NORETURN; + } + + /* Pass the "sq" flag as data. */ gen_gvec_3_ptr(get_field(s, v1), get_field(s, v2), - get_field(s, v3), cpu_env, 0, fn); + get_field(s, v3), cpu_env, sq, fn); if (cs) { set_cc_static(s); } diff --git a/target/s390x/vec_fpu_helper.c b/target/s390x/vec_fpu_helper.c index 1b78b6c088..e8ae608da6 100644 --- a/target/s390x/vec_fpu_helper.c +++ b/target/s390x/vec_fpu_helper.c @@ -20,6 +20,10 @@ #include "exec/helper-proto.h" #include "fpu/softfloat.h" +const float32 float32_ones = make_float32(-1u); +const float64 float64_ones = make_float64(-1ull); +const float128 float128_ones = make_float128(-1ull, -1ull); + #define VIC_INVALID 0x1 #define VIC_DIVBYZERO 0x2 #define VIC_OVERFLOW 0x3 @@ -227,109 +231,199 @@ DEF_GVEC_WFK(32) DEF_GVEC_WFK(64) DEF_GVEC_WFK(128) -typedef bool (*vfc64_fn)(float64 a, float64 b, float_status *status); -static int vfc64(S390Vector *v1, const S390Vector *v2, const S390Vector *v3, - CPUS390XState *env, bool s, vfc64_fn fn, uintptr_t retaddr) -{ - uint8_t vxc, vec_exc = 0; - S390Vector tmp = {}; - int match = 0; - int i; - - for (i = 0; i < 2; i++) { - const float64 a = s390_vec_read_element64(v2, i); - const float64 b = s390_vec_read_element64(v3, i); - - /* swap the order of the parameters, so we can use existing functions */ - if (fn(b, a, &env->fpu_status)) { - match++; - s390_vec_write_element64(&tmp, i, -1ull); - } - vxc = check_ieee_exc(env, i, false, &vec_exc); - if (s || vxc) { - break; - } - } - - handle_ieee_exc(env, vxc, vec_exc, retaddr); - *v1 = tmp; - if (match) { - return s || match == 2 ? 0 : 1; - } - return 3; +#define DEF_VFC(BITS) \ +typedef bool (*vfc##BITS##_fn)(float##BITS a, float##BITS b, \ + float_status *status); \ +static int vfc##BITS(S390Vector *v1, const S390Vector *v2, \ + const S390Vector *v3, CPUS390XState *env, bool s, \ + vfc##BITS##_fn fn, uintptr_t retaddr) \ +{ \ + uint8_t vxc, vec_exc = 0; \ + S390Vector tmp = {}; \ + int match = 0; \ + int i; \ + \ + for (i = 0; i < (128 / BITS); i++) { \ + const float##BITS a = s390_vec_read_float##BITS(v2, i); \ + const float##BITS b = s390_vec_read_float##BITS(v3, i); \ + \ + /* swap the parameters, so we can use existing functions */ \ + if (fn(b, a, &env->fpu_status)) { \ + match++; \ + s390_vec_write_float##BITS(&tmp, i, float##BITS##_ones); \ + } \ + vxc = check_ieee_exc(env, i, false, &vec_exc); \ + if (s || vxc) { \ + break; \ + } \ + } \ + \ + handle_ieee_exc(env, vxc, vec_exc, retaddr); \ + *v1 = tmp; \ + if (match) { \ + return s || match == (128 / BITS) ? 0 : 1; \ + } \ + return 3; \ } +DEF_VFC(32) +DEF_VFC(64) +DEF_VFC(128) -void HELPER(gvec_vfce64)(void *v1, const void *v2, const void *v3, - CPUS390XState *env, uint32_t desc) -{ - vfc64(v1, v2, v3, env, false, float64_eq_quiet, GETPC()); +#define DEF_GVEC_VFCE(BITS) \ +void HELPER(gvec_vfce##BITS)(void *v1, const void *v2, const void *v3, \ + CPUS390XState *env, uint32_t desc) \ +{ \ + const bool sq = simd_data(desc); \ + \ + vfc##BITS(v1, v2, v3, env, false, \ + sq ? float##BITS##_eq : float##BITS##_eq_quiet, GETPC()); \ } +DEF_GVEC_VFCE(32) +DEF_GVEC_VFCE(64) +DEF_GVEC_VFCE(128) -void HELPER(gvec_vfce64s)(void *v1, const void *v2, const void *v3, - CPUS390XState *env, uint32_t desc) -{ - vfc64(v1, v2, v3, env, true, float64_eq_quiet, GETPC()); +#define DEF_GVEC_VFCE_S(BITS) \ +void HELPER(gvec_vfce##BITS##s)(void *v1, const void *v2, const void *v3, \ + CPUS390XState *env, uint32_t desc) \ +{ \ + const bool sq = simd_data(desc); \ + \ + vfc##BITS(v1, v2, v3, env, true, \ + sq ? float##BITS##_eq : float##BITS##_eq_quiet, GETPC()); \ } +DEF_GVEC_VFCE_S(32) +DEF_GVEC_VFCE_S(64) -void HELPER(gvec_vfce64_cc)(void *v1, const void *v2, const void *v3, - CPUS390XState *env, uint32_t desc) -{ - env->cc_op = vfc64(v1, v2, v3, env, false, float64_eq_quiet, GETPC()); +#define DEF_GVEC_VFCE_CC(BITS) \ +void HELPER(gvec_vfce##BITS##_cc)(void *v1, const void *v2, const void *v3, \ + CPUS390XState *env, uint32_t desc) \ +{ \ + const bool sq = simd_data(desc); \ + \ + env->cc_op = vfc##BITS(v1, v2, v3, env, false, \ + sq ? float##BITS##_eq : float##BITS##_eq_quiet, \ + GETPC()); \ } +DEF_GVEC_VFCE_CC(32) +DEF_GVEC_VFCE_CC(64) +DEF_GVEC_VFCE_CC(128) -void HELPER(gvec_vfce64s_cc)(void *v1, const void *v2, const void *v3, - CPUS390XState *env, uint32_t desc) -{ - env->cc_op = vfc64(v1, v2, v3, env, true, float64_eq_quiet, GETPC()); +#define DEF_GVEC_VFCE_S_CC(BITS) \ +void HELPER(gvec_vfce##BITS##s_cc)(void *v1, const void *v2, const void *v3, \ + CPUS390XState *env, uint32_t desc) \ +{ \ + const bool sq = simd_data(desc); \ + \ + env->cc_op = vfc##BITS(v1, v2, v3, env, true, \ + sq ? float##BITS##_eq : float##BITS##_eq_quiet, \ + GETPC()); \ } +DEF_GVEC_VFCE_S_CC(32) +DEF_GVEC_VFCE_S_CC(64) -void HELPER(gvec_vfch64)(void *v1, const void *v2, const void *v3, - CPUS390XState *env, uint32_t desc) -{ - vfc64(v1, v2, v3, env, false, float64_lt_quiet, GETPC()); +#define DEF_GVEC_VFCH(BITS) \ +void HELPER(gvec_vfch##BITS)(void *v1, const void *v2, const void *v3, \ + CPUS390XState *env, uint32_t desc) \ +{ \ + const bool sq = simd_data(desc); \ + \ + vfc##BITS(v1, v2, v3, env, false, \ + sq ? float##BITS##_lt : float##BITS##_lt_quiet, GETPC()); \ } +DEF_GVEC_VFCH(32) +DEF_GVEC_VFCH(64) +DEF_GVEC_VFCH(128) -void HELPER(gvec_vfch64s)(void *v1, const void *v2, const void *v3, - CPUS390XState *env, uint32_t desc) -{ - vfc64(v1, v2, v3, env, true, float64_lt_quiet, GETPC()); +#define DEF_GVEC_VFCH_S(BITS) \ +void HELPER(gvec_vfch##BITS##s)(void *v1, const void *v2, const void *v3, \ + CPUS390XState *env, uint32_t desc) \ +{ \ + const bool sq = simd_data(desc); \ + \ + vfc##BITS(v1, v2, v3, env, true, \ + sq ? float##BITS##_lt : float##BITS##_lt_quiet, GETPC()); \ } +DEF_GVEC_VFCH_S(32) +DEF_GVEC_VFCH_S(64) -void HELPER(gvec_vfch64_cc)(void *v1, const void *v2, const void *v3, - CPUS390XState *env, uint32_t desc) -{ - env->cc_op = vfc64(v1, v2, v3, env, false, float64_lt_quiet, GETPC()); +#define DEF_GVEC_VFCH_CC(BITS) \ +void HELPER(gvec_vfch##BITS##_cc)(void *v1, const void *v2, const void *v3, \ + CPUS390XState *env, uint32_t desc) \ +{ \ + const bool sq = simd_data(desc); \ + \ + env->cc_op = vfc##BITS(v1, v2, v3, env, false, \ + sq ? float##BITS##_lt : float##BITS##_lt_quiet, \ + GETPC()); \ } +DEF_GVEC_VFCH_CC(32) +DEF_GVEC_VFCH_CC(64) +DEF_GVEC_VFCH_CC(128) -void HELPER(gvec_vfch64s_cc)(void *v1, const void *v2, const void *v3, - CPUS390XState *env, uint32_t desc) -{ - env->cc_op = vfc64(v1, v2, v3, env, true, float64_lt_quiet, GETPC()); +#define DEF_GVEC_VFCH_S_CC(BITS) \ +void HELPER(gvec_vfch##BITS##s_cc)(void *v1, const void *v2, const void *v3, \ + CPUS390XState *env, uint32_t desc) \ +{ \ + const bool sq = simd_data(desc); \ + \ + env->cc_op = vfc##BITS(v1, v2, v3, env, true, \ + sq ? float##BITS##_lt : float##BITS##_lt_quiet, \ + GETPC()); \ } +DEF_GVEC_VFCH_S_CC(32) +DEF_GVEC_VFCH_S_CC(64) -void HELPER(gvec_vfche64)(void *v1, const void *v2, const void *v3, - CPUS390XState *env, uint32_t desc) -{ - vfc64(v1, v2, v3, env, false, float64_le_quiet, GETPC()); +#define DEF_GVEC_VFCHE(BITS) \ +void HELPER(gvec_vfche##BITS)(void *v1, const void *v2, const void *v3, \ + CPUS390XState *env, uint32_t desc) \ +{ \ + const bool sq = simd_data(desc); \ + \ + vfc##BITS(v1, v2, v3, env, false, \ + sq ? float##BITS##_le : float##BITS##_le_quiet, GETPC()); \ } +DEF_GVEC_VFCHE(32) +DEF_GVEC_VFCHE(64) +DEF_GVEC_VFCHE(128) -void HELPER(gvec_vfche64s)(void *v1, const void *v2, const void *v3, - CPUS390XState *env, uint32_t desc) -{ - vfc64(v1, v2, v3, env, true, float64_le_quiet, GETPC()); +#define DEF_GVEC_VFCHE_S(BITS) \ +void HELPER(gvec_vfche##BITS##s)(void *v1, const void *v2, const void *v3, \ + CPUS390XState *env, uint32_t desc) \ +{ \ + const bool sq = simd_data(desc); \ + \ + vfc##BITS(v1, v2, v3, env, true, \ + sq ? float##BITS##_le : float##BITS##_le_quiet, GETPC()); \ } +DEF_GVEC_VFCHE_S(32) +DEF_GVEC_VFCHE_S(64) -void HELPER(gvec_vfche64_cc)(void *v1, const void *v2, const void *v3, - CPUS390XState *env, uint32_t desc) -{ - env->cc_op = vfc64(v1, v2, v3, env, false, float64_le_quiet, GETPC()); +#define DEF_GVEC_VFCHE_CC(BITS) \ +void HELPER(gvec_vfche##BITS##_cc)(void *v1, const void *v2, const void *v3, \ + CPUS390XState *env, uint32_t desc) \ +{ \ + const bool sq = simd_data(desc); \ + \ + env->cc_op = vfc##BITS(v1, v2, v3, env, false, \ + sq ? float##BITS##_le : float##BITS##_le_quiet, \ + GETPC()); \ } +DEF_GVEC_VFCHE_CC(32) +DEF_GVEC_VFCHE_CC(64) +DEF_GVEC_VFCHE_CC(128) -void HELPER(gvec_vfche64s_cc)(void *v1, const void *v2, const void *v3, - CPUS390XState *env, uint32_t desc) -{ - env->cc_op = vfc64(v1, v2, v3, env, true, float64_le_quiet, GETPC()); +#define DEF_GVEC_VFCHE_S_CC(BITS) \ +void HELPER(gvec_vfche##BITS##s_cc)(void *v1, const void *v2, const void *v3, \ + CPUS390XState *env, uint32_t desc) \ +{ \ + const bool sq = simd_data(desc); \ + \ + env->cc_op = vfc##BITS(v1, v2, v3, env, true, \ + sq ? float##BITS##_le : float##BITS##_le_quiet, \ + GETPC()); \ } +DEF_GVEC_VFCHE_S_CC(32) +DEF_GVEC_VFCHE_S_CC(64) static uint64_t vcdg64(uint64_t a, float_status *s) {