From patchwork Mon Jun 21 09:58:24 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Cornelia Huck X-Patchwork-Id: 12334399 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6DE45C48BC2 for ; Mon, 21 Jun 2021 10:17:50 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 307CE611BD for ; Mon, 21 Jun 2021 10:17:50 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 307CE611BD Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:34286 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lvH01-0006g7-9V for qemu-devel@archiver.kernel.org; Mon, 21 Jun 2021 06:17:49 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:35266) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lvGiQ-0007cf-2z for qemu-devel@nongnu.org; Mon, 21 Jun 2021 05:59:38 -0400 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:40232) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lvGiO-000700-56 for qemu-devel@nongnu.org; Mon, 21 Jun 2021 05:59:37 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1624269575; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=Y2/mW2JXTwLC/xfeCzZzWJkdlI8BHHurrZ49zx+kv9Y=; b=O9sgTZYmEWWe4mQmU9CmmPlUwRID0PXLdHiXJwL0OBbHuY9CRUw4RhzjdO1bQHH4tFq4AB JfbtDxuKWX7IFK5sFLzMDnEBVr8h3JY882Vo528kPbzi1lCS/N/j8Pg91aUv2uluGkFfek HIfEqaYQ902BQ2tvHTHFPbixENH3yuI= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-471-rdIOWojBNb6MgM8jilS29g-1; Mon, 21 Jun 2021 05:59:33 -0400 X-MC-Unique: rdIOWojBNb6MgM8jilS29g-1 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 5892980430F; Mon, 21 Jun 2021 09:59:32 +0000 (UTC) Received: from gondolin.fritz.box (ovpn-113-141.ams2.redhat.com [10.36.113.141]) by smtp.corp.redhat.com (Postfix) with ESMTP id BE72F5D740; Mon, 21 Jun 2021 09:59:27 +0000 (UTC) From: Cornelia Huck To: Peter Maydell Subject: [PULL 19/37] s390x/tcg: Implement 128 bit for VECTOR FP LOAD ROUNDED Date: Mon, 21 Jun 2021 11:58:24 +0200 Message-Id: <20210621095842.335162-20-cohuck@redhat.com> In-Reply-To: <20210621095842.335162-1-cohuck@redhat.com> References: <20210621095842.335162-1-cohuck@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=cohuck@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=216.205.24.124; envelope-from=cohuck@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -30 X-Spam_score: -3.1 X-Spam_bar: --- X-Spam_report: (-3.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.299, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H4=-0.01, RCVD_IN_MSPIKE_WL=-0.01, 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 , qemu-devel@nongnu.org, David Hildenbrand Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: David Hildenbrand 128 bit -> 64 bit, there is only a single element to process. Reviewed-by: Richard Henderson Signed-off-by: David Hildenbrand Message-Id: <20210608092337.12221-19-david@redhat.com> Signed-off-by: Cornelia Huck --- target/s390x/helper.h | 1 + target/s390x/translate_vx.c.inc | 11 ++++++++++- target/s390x/vec_fpu_helper.c | 19 +++++++++++++++++++ 3 files changed, 30 insertions(+), 1 deletion(-) diff --git a/target/s390x/helper.h b/target/s390x/helper.h index b5ba159402b2..02e6967ae6b5 100644 --- a/target/s390x/helper.h +++ b/target/s390x/helper.h @@ -287,6 +287,7 @@ DEF_HELPER_FLAGS_4(gvec_vfi128, 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_vfll64, 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_4(gvec_vflr128, 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) diff --git a/target/s390x/translate_vx.c.inc b/target/s390x/translate_vx.c.inc index 472afca45e25..e94c9f9d86d5 100644 --- a/target/s390x/translate_vx.c.inc +++ b/target/s390x/translate_vx.c.inc @@ -2759,8 +2759,17 @@ static DisasJumpType op_vcdg(DisasContext *s, DisasOps *o) } break; case 0xc5: - if (fpf == FPF_LONG) { + switch (fpf) { + case FPF_LONG: fn = gen_helper_gvec_vflr64; + break; + case FPF_EXT: + if (s390_has_feat(S390_FEAT_VECTOR_ENH)) { + fn = gen_helper_gvec_vflr128; + } + break; + default: + break; } break; default: diff --git a/target/s390x/vec_fpu_helper.c b/target/s390x/vec_fpu_helper.c index 75e3212582bc..0fb82bd18f46 100644 --- a/target/s390x/vec_fpu_helper.c +++ b/target/s390x/vec_fpu_helper.c @@ -563,6 +563,25 @@ void HELPER(gvec_vflr64)(void *v1, const void *v2, CPUS390XState *env, *(S390Vector *)v1 = tmp; } +void HELPER(gvec_vflr128)(void *v1, const void *v2, CPUS390XState *env, + uint32_t desc) +{ + const uint8_t erm = extract32(simd_data(desc), 4, 4); + const bool XxC = extract32(simd_data(desc), 2, 1); + uint8_t vxc, vec_exc = 0; + int old_mode; + float64 ret; + + old_mode = s390_swap_bfp_rounding_mode(env, erm); + ret = float128_to_float64(s390_vec_read_float128(v2), &env->fpu_status); + vxc = check_ieee_exc(env, 0, XxC, &vec_exc); + s390_restore_bfp_rounding_mode(env, old_mode); + handle_ieee_exc(env, vxc, vec_exc, GETPC()); + + /* place at even element, odd element is unpredictable */ + s390_vec_write_float64(v1, 0, ret); +} + static void vfma64(S390Vector *v1, const S390Vector *v2, const S390Vector *v3, const S390Vector *v4, CPUS390XState *env, bool s, int flags, uintptr_t retaddr)