From nobody Mon Feb 9 01:19:50 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=redhat.com ARC-Seal: i=1; a=rsa-sha256; t=1558090569; cv=none; d=zoho.com; s=zohoarc; b=VeseAQgf5j0EWaQ7hqrLI5kONR4CeAc+YhSNydhMSa4SiUzyRqG0uR7e0Y4U3Mtx2CUjmP1JY9twoRYmiCoW3U7dYBF8e4Y9lKMTEWsA3kyjAANW5l1MvdGDUqKvQRHbI1te75fBsCMxhcoSFMRBXGs/u3QHFL+bOKgP5zbVy/0= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zoho.com; s=zohoarc; t=1558090569; h=Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To:ARC-Authentication-Results; bh=kIZolf9HAu9T2alpxS5c1NPqNILtioM7Dy/7SskWn1w=; b=VApsI8FWWdqtFY3VwHMQh5vlF8jLNxDhDMzlFa/TJJqKL0Oj4aKGqdAF7cpgFXcD+cXX5raBoHa9jwknZtgfteM7JZfQ6/zjswlK7B1XBP1gDkbGk62iZlS4Mb93yUwe2455jNWj2dDHnh0pfLaE/eMzmCMDUW4xnrfoJcfbEY8= ARC-Authentication-Results: i=1; mx.zoho.com; spf=pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail header.from= (p=none dis=none) header.from= Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1558090569787701.6502680433143; Fri, 17 May 2019 03:56:09 -0700 (PDT) Received: from localhost ([127.0.0.1]:46331 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hRaWw-0004VQ-IW for importer@patchew.org; Fri, 17 May 2019 06:56:02 -0400 Received: from eggs.gnu.org ([209.51.188.92]:49609) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hRa6n-0006cz-97 for qemu-devel@nongnu.org; Fri, 17 May 2019 06:29:02 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1hRa13-0004gg-CT for qemu-devel@nongnu.org; Fri, 17 May 2019 06:23:06 -0400 Received: from mx1.redhat.com ([209.132.183.28]:45867) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1hRa13-0004gS-54; Fri, 17 May 2019 06:23:05 -0400 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 9DF96D5565; Fri, 17 May 2019 10:23:02 +0000 (UTC) Received: from t460s.redhat.com (unknown [10.36.118.100]) by smtp.corp.redhat.com (Postfix) with ESMTP id D535558747; Fri, 17 May 2019 10:22:43 +0000 (UTC) From: David Hildenbrand To: qemu-devel@nongnu.org Date: Fri, 17 May 2019 12:21:11 +0200 Message-Id: <20190517102145.21812-7-david@redhat.com> In-Reply-To: <20190517102145.21812-1-david@redhat.com> References: <20190517102145.21812-1-david@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.26]); Fri, 17 May 2019 10:23:04 +0000 (UTC) Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PULL SUBSYSTEM s390x 06/40] s390x/tcg: Implement VECTOR AVERAGE X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Thomas Huth , David Hildenbrand , Cornelia Huck , Richard Henderson , qemu-s390x@nongnu.org, Richard Henderson Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Type: text/plain; charset="utf-8" Handle 32/64-bit elements via gvec expansion and the 8/16 bits via ool helpers. Reviewed-by: Richard Henderson Signed-off-by: David Hildenbrand --- target/s390x/Makefile.objs | 2 +- target/s390x/helper.h | 4 +++ target/s390x/insn-data.def | 2 ++ target/s390x/translate_vx.inc.c | 64 +++++++++++++++++++++++++++++++++ target/s390x/vec_int_helper.c | 32 +++++++++++++++++ 5 files changed, 103 insertions(+), 1 deletion(-) create mode 100644 target/s390x/vec_int_helper.c diff --git a/target/s390x/Makefile.objs b/target/s390x/Makefile.objs index 68eeee3d2f..993ac93ed6 100644 --- a/target/s390x/Makefile.objs +++ b/target/s390x/Makefile.objs @@ -1,7 +1,7 @@ obj-y +=3D cpu.o cpu_models.o cpu_features.o gdbstub.o interrupt.o helper.o obj-$(CONFIG_TCG) +=3D translate.o cc_helper.o excp_helper.o fpu_helper.o obj-$(CONFIG_TCG) +=3D int_helper.o mem_helper.o misc_helper.o crypto_help= er.o -obj-$(CONFIG_TCG) +=3D vec_helper.o +obj-$(CONFIG_TCG) +=3D vec_helper.o vec_int_helper.o obj-$(CONFIG_SOFTMMU) +=3D machine.o ioinst.o arch_dump.o mmu_helper.o dia= g.o obj-$(CONFIG_SOFTMMU) +=3D sigp.o obj-$(CONFIG_KVM) +=3D kvm.o diff --git a/target/s390x/helper.h b/target/s390x/helper.h index 0b494a2fd2..add1d332e5 100644 --- a/target/s390x/helper.h +++ b/target/s390x/helper.h @@ -145,6 +145,10 @@ DEF_HELPER_5(gvec_vpkls_cc64, void, ptr, cptr, cptr, e= nv, i32) DEF_HELPER_FLAGS_5(gvec_vperm, TCG_CALL_NO_RWG, void, ptr, cptr, cptr, cpt= r, i32) DEF_HELPER_FLAGS_4(vstl, TCG_CALL_NO_WG, void, env, cptr, i64, i64) =20 +/* =3D=3D=3D Vector Integer Instructions =3D=3D=3D */ +DEF_HELPER_FLAGS_4(gvec_vavg8, TCG_CALL_NO_RWG, void, ptr, cptr, cptr, i32) +DEF_HELPER_FLAGS_4(gvec_vavg16, TCG_CALL_NO_RWG, void, ptr, cptr, cptr, i3= 2) + #ifndef CONFIG_USER_ONLY DEF_HELPER_3(servc, i32, env, i64, i64) DEF_HELPER_4(diag, void, env, i32, i32, i32) diff --git a/target/s390x/insn-data.def b/target/s390x/insn-data.def index 456d5597ca..6f8b42e327 100644 --- a/target/s390x/insn-data.def +++ b/target/s390x/insn-data.def @@ -1068,6 +1068,8 @@ F(0xe768, VN, VRR_c, V, 0, 0, 0, 0, vn, 0, IF_VEC) /* VECTOR AND WITH COMPLEMENT */ F(0xe769, VNC, VRR_c, V, 0, 0, 0, 0, vnc, 0, IF_VEC) +/* VECTOR AVERAGE */ + F(0xe7f2, VAVG, VRR_c, V, 0, 0, 0, 0, vavg, 0, IF_VEC) =20 #ifndef CONFIG_USER_ONLY /* COMPARE AND SWAP AND PURGE */ diff --git a/target/s390x/translate_vx.inc.c b/target/s390x/translate_vx.in= c.c index 8b4bdb2d21..065ace6bda 100644 --- a/target/s390x/translate_vx.inc.c +++ b/target/s390x/translate_vx.inc.c @@ -256,6 +256,17 @@ static void zero_vec(uint8_t reg) tcg_gen_gvec_dup8i(vec_full_reg_offset(reg), 16, 16, 0); } =20 +static void gen_addi2_i64(TCGv_i64 dl, TCGv_i64 dh, TCGv_i64 al, TCGv_i64 = ah, + uint64_t b) +{ + TCGv_i64 bl =3D tcg_const_i64(b); + TCGv_i64 bh =3D tcg_const_i64(0); + + tcg_gen_add2_i64(dl, dh, al, ah, bl, bh); + tcg_temp_free_i64(bl); + tcg_temp_free_i64(bh); +} + static DisasJumpType op_vge(DisasContext *s, DisasOps *o) { const uint8_t es =3D s->insn->data; @@ -1192,3 +1203,56 @@ static DisasJumpType op_vnc(DisasContext *s, DisasOp= s *o) get_field(s->fields, v2), get_field(s->fields, v3)); return DISAS_NEXT; } + +static void gen_avg_i32(TCGv_i32 d, TCGv_i32 a, TCGv_i32 b) +{ + TCGv_i64 t0 =3D tcg_temp_new_i64(); + TCGv_i64 t1 =3D tcg_temp_new_i64(); + + tcg_gen_ext_i32_i64(t0, a); + tcg_gen_ext_i32_i64(t1, b); + tcg_gen_add_i64(t0, t0, t1); + tcg_gen_addi_i64(t0, t0, 1); + tcg_gen_shri_i64(t0, t0, 1); + tcg_gen_extrl_i64_i32(d, t0); + + tcg_temp_free(t0); + tcg_temp_free(t1); +} + +static void gen_avg_i64(TCGv_i64 dl, TCGv_i64 al, TCGv_i64 bl) +{ + TCGv_i64 dh =3D tcg_temp_new_i64(); + TCGv_i64 ah =3D tcg_temp_new_i64(); + TCGv_i64 bh =3D tcg_temp_new_i64(); + + /* extending the sign by one bit is sufficient */ + tcg_gen_extract_i64(ah, al, 63, 1); + tcg_gen_extract_i64(bh, bl, 63, 1); + tcg_gen_add2_i64(dl, dh, al, ah, bl, bh); + gen_addi2_i64(dl, dh, dl, dh, 1); + tcg_gen_extract2_i64(dl, dl, dh, 1); + + tcg_temp_free_i64(dh); + tcg_temp_free_i64(ah); + tcg_temp_free_i64(bh); +} + +static DisasJumpType op_vavg(DisasContext *s, DisasOps *o) +{ + const uint8_t es =3D get_field(s->fields, m4); + static const GVecGen3 g[4] =3D { + { .fno =3D gen_helper_gvec_vavg8, }, + { .fno =3D gen_helper_gvec_vavg16, }, + { .fni4 =3D gen_avg_i32, }, + { .fni8 =3D gen_avg_i64, }, + }; + + if (es > ES_64) { + gen_program_exception(s, PGM_SPECIFICATION); + return DISAS_NORETURN; + } + gen_gvec_3(get_field(s->fields, v1), get_field(s->fields, v2), + get_field(s->fields, v3), &g[es]); + return DISAS_NEXT; +} diff --git a/target/s390x/vec_int_helper.c b/target/s390x/vec_int_helper.c new file mode 100644 index 0000000000..d964655bb8 --- /dev/null +++ b/target/s390x/vec_int_helper.c @@ -0,0 +1,32 @@ +/* + * QEMU TCG support -- s390x vector integer instruction support + * + * Copyright (C) 2019 Red Hat Inc + * + * Authors: + * David Hildenbrand + * + * This work is licensed under the terms of the GNU GPL, version 2 or late= r. + * See the COPYING file in the top-level directory. + */ +#include "qemu/osdep.h" +#include "qemu-common.h" +#include "cpu.h" +#include "vec.h" +#include "exec/helper-proto.h" + +#define DEF_VAVG(BITS) = \ +void HELPER(gvec_vavg##BITS)(void *v1, const void *v2, const void *v3, = \ + uint32_t desc) = \ +{ = \ + int i; = \ + = \ + for (i =3D 0; i < (128 / BITS); i++) { = \ + const int32_t a =3D (int##BITS##_t)s390_vec_read_element##BITS(v2,= i); \ + const int32_t b =3D (int##BITS##_t)s390_vec_read_element##BITS(v3,= i); \ + = \ + s390_vec_write_element##BITS(v1, i, (a + b + 1) >> 1); = \ + } = \ +} +DEF_VAVG(8) +DEF_VAVG(16) --=20 2.20.1