From patchwork Mon May 17 14:27:31 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Hildenbrand X-Patchwork-Id: 1479570 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (1024-bit key; unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256 header.s=mimecast20190719 header.b=LmFEOeWT; dkim-atps=neutral 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 ozlabs.org (Postfix) with ESMTPS id 4FkMJC2dTtz9tjw for ; Tue, 18 May 2021 00:40:59 +1000 (AEST) Received: from localhost ([::1]:34292 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lieQT-0004tm-Ce for incoming@patchwork.ozlabs.org; Mon, 17 May 2021 10:40:57 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:56834) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lieF1-0004IM-AZ for qemu-devel@nongnu.org; Mon, 17 May 2021 10:29:07 -0400 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:50143) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lieEz-0007Y8-Ap for qemu-devel@nongnu.org; Mon, 17 May 2021 10:29:07 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1621261744; 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=KP4J/+SR5XNcA1wVS/ixZy2zylTjX3q8Lb0LByy0dHk=; b=LmFEOeWT4v8cYlYGdPRXK5e1Xt9yD57sml1kY2r6jHzoQudj+/Y96o/LTrRkun+AvJVXLz QO1qPvJas5P/KGn5QxMFe7izJvXDtqSVNUG+2eV2M14ttBe5tNyhsxBWjLPCPLKurJEVzj 1nepTRE5/qp6utMn98JvaHCOXlnj9TI= 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-195-tARJqXtcPEKGYIK_6UMcTg-1; Mon, 17 May 2021 10:29:02 -0400 X-MC-Unique: tARJqXtcPEKGYIK_6UMcTg-1 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.phx2.redhat.com [10.5.11.14]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id F3BFC8042A9; Mon, 17 May 2021 14:29:00 +0000 (UTC) Received: from t480s.redhat.com (ovpn-115-101.ams2.redhat.com [10.36.115.101]) by smtp.corp.redhat.com (Postfix) with ESMTP id A237F18E46; Mon, 17 May 2021 14:28:56 +0000 (UTC) From: David Hildenbrand To: qemu-devel@nongnu.org Subject: [PATCH v2 18/26] s390x/tcg: Implement 128 bit for VECTOR FP LOAD ROUNDED Date: Mon, 17 May 2021 16:27:31 +0200 Message-Id: <20210517142739.38597-19-david@redhat.com> In-Reply-To: <20210517142739.38597-1-david@redhat.com> References: <20210517142739.38597-1-david@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 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-Spam_score_int: -31 X-Spam_score: -3.2 X-Spam_bar: --- X-Spam_report: (-3.2 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.374, 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=0.001, 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: Peter Maydell , Thomas Huth , David Hildenbrand , Cornelia Huck , Richard Henderson , Halil Pasic , Christian Borntraeger , qemu-s390x@nongnu.org, =?utf-8?q?Alex_Benn=C3=A9e?= , Aurelien Jarno Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" 128 bit -> 64 bit, there is only a single element to process. Reviewed-by: Richard Henderson Signed-off-by: David Hildenbrand --- 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 b5ba159402..02e6967ae6 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 472afca45e..e94c9f9d86 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 8b9f64e03f..65170ed307 100644 --- a/target/s390x/vec_fpu_helper.c +++ b/target/s390x/vec_fpu_helper.c @@ -565,6 +565,25 @@ 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)