From patchwork Thu Jan 12 16:24:07 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Nikunj A. Dadhania" X-Patchwork-Id: 9513587 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id C1B3960476 for ; Thu, 12 Jan 2017 16:31:58 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id B43A7286E4 for ; Thu, 12 Jan 2017 16:31:58 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id A90D3286EC; Thu, 12 Jan 2017 16:31:58 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 292FF286E4 for ; Thu, 12 Jan 2017 16:31:58 +0000 (UTC) Received: from localhost ([::1]:35022 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cRiI9-0003BG-6O for patchwork-qemu-devel@patchwork.kernel.org; Thu, 12 Jan 2017 11:31:57 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:45140) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cRiBI-0005eR-W1 for qemu-devel@nongnu.org; Thu, 12 Jan 2017 11:24:58 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1cRiBE-0007mq-Es for qemu-devel@nongnu.org; Thu, 12 Jan 2017 11:24:53 -0500 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:49186) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1cRiBE-0007kn-6I for qemu-devel@nongnu.org; Thu, 12 Jan 2017 11:24:48 -0500 Received: from pps.filterd (m0098393.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.17/8.16.0.17) with SMTP id v0CGJWWM139649 for ; Thu, 12 Jan 2017 11:24:47 -0500 Received: from e28smtp09.in.ibm.com (e28smtp09.in.ibm.com [125.16.236.9]) by mx0a-001b2d01.pphosted.com with ESMTP id 27x9h8jaw4-1 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT) for ; Thu, 12 Jan 2017 11:24:46 -0500 Received: from localhost by e28smtp09.in.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! 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Violators will be prosecuted; Thu, 12 Jan 2017 21:54:40 +0530 Received: from d28relay01.in.ibm.com (d28relay01.in.ibm.com [9.184.220.58]) by d28dlp03.in.ibm.com (Postfix) with ESMTP id 1A4AA125805B; Thu, 12 Jan 2017 21:56:13 +0530 (IST) Received: from d28av08.in.ibm.com (d28av08.in.ibm.com [9.184.220.148]) by d28relay01.in.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id v0CGOdUq40828944; Thu, 12 Jan 2017 21:54:39 +0530 Received: from d28av08.in.ibm.com (localhost [127.0.0.1]) by d28av08.in.ibm.com (8.14.4/8.14.4/NCO v10.0 AVout) with ESMTP id v0CGObBK018038; Thu, 12 Jan 2017 21:54:39 +0530 Received: from abhimanyu.in.ibm.com ([9.199.45.205]) by d28av08.in.ibm.com (8.14.4/8.14.4/NCO v10.0 AVin) with ESMTP id v0CGOChH016612; Thu, 12 Jan 2017 21:54:31 +0530 From: Nikunj A Dadhania To: qemu-ppc@nongnu.org, david@gibson.dropbear.id.au, rth@twiddle.net Date: Thu, 12 Jan 2017 21:54:07 +0530 X-Mailer: git-send-email 2.7.4 In-Reply-To: <1484238251-8096-1-git-send-email-nikunj@linux.vnet.ibm.com> References: <1484238251-8096-1-git-send-email-nikunj@linux.vnet.ibm.com> X-TM-AS-MML: disable X-Content-Scanned: Fidelis XPS MAILER x-cbid: 17011216-0032-0000-0000-000001CACA50 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 17011216-0033-0000-0000-000011E47481 Message-Id: <1484238251-8096-4-git-send-email-nikunj@linux.vnet.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:, , definitions=2017-01-12_12:, , signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 suspectscore=0 malwarescore=0 phishscore=0 adultscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1612050000 definitions=main-1701120225 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [generic] [fuzzy] X-Received-From: 148.163.156.1 Subject: [Qemu-devel] [PATCH 3/7] target-ppc: Add xsdivqp instruction 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: qemu-devel@nongnu.org, nikunj@linux.vnet.ibm.com, bharata@linux.vnet.ibm.com Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP From: Bharata B Rao xsdivqp: VSX Scalar Divide Quad-Precision Signed-off-by: Bharata B Rao Signed-off-by: Nikunj A Dadhania --- target/ppc/fpu_helper.c | 36 ++++++++++++++++++++++++++++++++++++ target/ppc/helper.h | 1 + target/ppc/translate/vsx-impl.inc.c | 1 + target/ppc/translate/vsx-ops.inc.c | 1 + 4 files changed, 39 insertions(+) diff --git a/target/ppc/fpu_helper.c b/target/ppc/fpu_helper.c index b9689b7..545bbbc 100644 --- a/target/ppc/fpu_helper.c +++ b/target/ppc/fpu_helper.c @@ -1981,6 +1981,42 @@ VSX_DIV(xsdivsp, 1, float64, VsrD(0), 1, 1) VSX_DIV(xvdivdp, 2, float64, VsrD(i), 0, 0) VSX_DIV(xvdivsp, 4, float32, VsrW(i), 0, 0) +void helper_xsdivqp(CPUPPCState *env, uint32_t opcode) +{ + ppc_vsr_t xt, xa, xb; + + getVSR(rA(opcode) + 32, &xa, env); + getVSR(rB(opcode) + 32, &xb, env); + getVSR(rD(opcode) + 32, &xt, env); + + if (unlikely(Rc(opcode) != 0)) { + /* TODO: Support xsdivqpo after round-to-odd is implemented */ + abort(); + } + + helper_reset_fpstatus(env); + float_status tstat = env->fp_status; + set_float_exception_flags(0, &tstat); + xt.f128 = float128_div(xa.f128, xb.f128, &tstat); + env->fp_status.float_exception_flags |= tstat.float_exception_flags; + + if (unlikely(tstat.float_exception_flags & float_flag_invalid)) { + if (float128_is_infinity(xa.f128) && float128_is_infinity(xb.f128)) { + float_invalid_op_excp(env, POWERPC_EXCP_FP_VXIDI, 1); + } else if (float128_is_zero(xa.f128) && + float128_is_zero(xb.f128)) { + float_invalid_op_excp(env, POWERPC_EXCP_FP_VXZDZ, 1); + } else if (float128_is_signaling_nan(xa.f128, &tstat) || + float128_is_signaling_nan(xb.f128, &tstat)) { + float_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN, 1); + } + } + + helper_compute_fprf_float128(env, xt.f128); + putVSR(rD(opcode) + 32, &xt, env); + float_check_status(env); +} + /* VSX_RE - VSX floating point reciprocal estimate * op - instruction mnemonic * nels - number of elements (1, 2 or 4) diff --git a/target/ppc/helper.h b/target/ppc/helper.h index 73c60d7..636462f 100644 --- a/target/ppc/helper.h +++ b/target/ppc/helper.h @@ -404,6 +404,7 @@ DEF_HELPER_2(xsaddqp, void, env, i32) DEF_HELPER_2(xssubdp, void, env, i32) DEF_HELPER_2(xsmuldp, void, env, i32) DEF_HELPER_2(xsdivdp, void, env, i32) +DEF_HELPER_2(xsdivqp, void, env, i32) DEF_HELPER_2(xsredp, void, env, i32) DEF_HELPER_2(xssqrtdp, void, env, i32) DEF_HELPER_2(xsrsqrtedp, void, env, i32) diff --git a/target/ppc/translate/vsx-impl.inc.c b/target/ppc/translate/vsx-impl.inc.c index 37004a4..38fab01 100644 --- a/target/ppc/translate/vsx-impl.inc.c +++ b/target/ppc/translate/vsx-impl.inc.c @@ -781,6 +781,7 @@ GEN_VSX_HELPER_2(xsaddqp, 0x04, 0x00, 0, PPC2_ISA300) GEN_VSX_HELPER_2(xssubdp, 0x00, 0x05, 0, PPC2_VSX) GEN_VSX_HELPER_2(xsmuldp, 0x00, 0x06, 0, PPC2_VSX) GEN_VSX_HELPER_2(xsdivdp, 0x00, 0x07, 0, PPC2_VSX) +GEN_VSX_HELPER_2(xsdivqp, 0x04, 0x11, 0, PPC2_ISA300) GEN_VSX_HELPER_2(xsredp, 0x14, 0x05, 0, PPC2_VSX) GEN_VSX_HELPER_2(xssqrtdp, 0x16, 0x04, 0, PPC2_VSX) GEN_VSX_HELPER_2(xsrsqrtedp, 0x14, 0x04, 0, PPC2_VSX) diff --git a/target/ppc/translate/vsx-ops.inc.c b/target/ppc/translate/vsx-ops.inc.c index 6b6b828..c1164c3 100644 --- a/target/ppc/translate/vsx-ops.inc.c +++ b/target/ppc/translate/vsx-ops.inc.c @@ -196,6 +196,7 @@ GEN_XX3FORM(xsaddsp, 0x00, 0x00, PPC2_VSX207), GEN_XX3FORM(xssubsp, 0x00, 0x01, PPC2_VSX207), GEN_XX3FORM(xsmulsp, 0x00, 0x02, PPC2_VSX207), GEN_XX3FORM(xsdivsp, 0x00, 0x03, PPC2_VSX207), +GEN_VSX_XFORM_300(xsdivqp, 0x04, 0x11, 0x0), GEN_XX2FORM(xsresp, 0x14, 0x01, PPC2_VSX207), GEN_XX2FORM(xsrsp, 0x12, 0x11, PPC2_VSX207), GEN_XX2FORM(xssqrtsp, 0x16, 0x00, PPC2_VSX207),