From mboxrd@z Thu Jan 1 00:00:00 1970 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=-3.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=no 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 960CFC43331 for ; Thu, 2 Apr 2020 15:21:59 +0000 (UTC) Received: from lists.ozlabs.org (lists.ozlabs.org [203.11.71.2]) (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 478E72072E for ; Thu, 2 Apr 2020 15:21:59 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 478E72072E Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.ibm.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 48tRcj2GZgzDr1P for ; Fri, 3 Apr 2020 02:21:57 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=linux.ibm.com (client-ip=148.163.158.5; helo=mx0a-001b2d01.pphosted.com; envelope-from=bala24@linux.ibm.com; receiver=) Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=linux.ibm.com Received: from mx0a-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com [148.163.158.5]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 48tRZ45vN4zDrPT for ; Fri, 3 Apr 2020 02:19:40 +1100 (AEDT) Received: from pps.filterd (m0098416.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 032F3OWT064743 for ; Thu, 2 Apr 2020 11:19:37 -0400 Received: from e06smtp07.uk.ibm.com (e06smtp07.uk.ibm.com [195.75.94.103]) by mx0b-001b2d01.pphosted.com with ESMTP id 302071m23t-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Thu, 02 Apr 2020 11:19:37 -0400 Received: from localhost by e06smtp07.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! 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Violators will be prosecuted; (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256) Thu, 2 Apr 2020 16:19:31 +0100 Received: from d06av23.portsmouth.uk.ibm.com (d06av23.portsmouth.uk.ibm.com [9.149.105.59]) by b06cxnps3075.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 032FJWJM46792728 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 2 Apr 2020 15:19:32 GMT Received: from d06av23.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 4F980A404D; Thu, 2 Apr 2020 15:19:32 +0000 (GMT) Received: from d06av23.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 2D846A4053; Thu, 2 Apr 2020 15:19:30 +0000 (GMT) Received: from localhost.localdomain.com (unknown [9.199.45.155]) by d06av23.portsmouth.uk.ibm.com (Postfix) with ESMTP; Thu, 2 Apr 2020 15:19:29 +0000 (GMT) From: Balamuruhan S To: mpe@ellerman.id.au Subject: [PATCH v4 0/3] Add support for divde[.] and divdeu[.] instruction emulation Date: Thu, 2 Apr 2020 20:49:20 +0530 X-Mailer: git-send-email 2.24.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 x-cbid: 20040215-0028-0000-0000-000003F0B66F X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 20040215-0029-0000-0000-000024B64139 Message-Id: <20200402151923.605791-1-bala24@linux.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.138, 18.0.676 definitions=2020-04-02_05:2020-04-02, 2020-04-02 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 malwarescore=0 spamscore=0 lowpriorityscore=0 adultscore=0 mlxlogscore=876 suspectscore=1 bulkscore=0 phishscore=0 priorityscore=1501 mlxscore=0 impostorscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2003020000 definitions=main-2004020131 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: ravi.bangoria@linux.ibm.com, jniethe5@gmail.com, Balamuruhan S , paulus@samba.org, sandipan@linux.ibm.com, naveen.n.rao@linux.vnet.ibm.com, linuxppc-dev@lists.ozlabs.org Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" Hi All, This patchset adds support to emulate divde, divde., divdeu and divdeu. instructions and testcases for it. Changes in v4: ------------- Fix review comments from Naveen, * replace TEST_DIVDEU() instead of wrongly used TEST_DIVDEU_DOT() in divdeu testcase. * Include `acked-by` tag from Naveen for the series. * Rebase it on latest mpe's merge tree. Changes in v3: ------------- * Fix suggestion from Sandipan to remove `PPC_INST_DIVDE_DOT` and `PPC_INST_DIVDEU_DOT` opcode macros defined in ppc-opcode.h, reuse `PPC_INST_DIVDE` and `PPC_INST_DIVDEU` in test_emulate_step.c to derive them respectively. Changes in v2: ------------- * Fix review comments from Paul to make divde_dot and divdeu_dot simple by using divde and divdeu, then goto `arith_done` instead of `compute_done`. * Include `Reviewed-by` tag from Sandipan Das. * Rebase with recent mpe's merge tree. I would request for your review and suggestions for making it better. Boot Log: -------- :: :: :: :: [ 2.777518] emulate_step_test: divde : RA = LONG_MIN, RB = LONG_MIN PASS [ 2.777882] emulate_step_test: divde : RA = 1L, RB = 0 PASS [ 2.778432] emulate_step_test: divde : RA = LONG_MIN, RB = LONG_MAX PASS [ 2.778880] emulate_step_test: divde. : RA = LONG_MIN, RB = LONG_MIN PASS [ 2.780172] emulate_step_test: divde. : RA = 1L, RB = 0 PASS [ 2.780582] emulate_step_test: divde. : RA = LONG_MIN, RB = LONG_MAX PASS [ 2.780983] emulate_step_test: divdeu : RA = LONG_MIN, RB = LONG_MIN PASS [ 2.781276] emulate_step_test: divdeu : RA = 1L, RB = 0 PASS [ 2.781579] emulate_step_test: divdeu : RA = LONG_MIN, RB = LONG_MAX PASS [ 2.781820] emulate_step_test: divdeu : RA = LONG_MAX - 1, RB = LONG_MAX PASS [ 2.782056] emulate_step_test: divdeu : RA = LONG_MIN + 1, RB = LONG_MIN PASS [ 2.782296] emulate_step_test: divdeu. : RA = LONG_MIN, RB = LONG_MIN PASS [ 2.782556] emulate_step_test: divdeu. : RA = 1L, RB = 0 PASS [ 2.783502] emulate_step_test: divdeu. : RA = LONG_MIN, RB = LONG_MAX PASS [ 2.783748] emulate_step_test: divdeu. : RA = LONG_MAX - 1, RB = LONG_MAX PASS [ 2.783973] emulate_step_test: divdeu. : RA = LONG_MIN + 1, RB = LONG_MIN PASS [ 2.789617] registered taskstats version 1 [ 2.794779] printk: console [netcon0] enabled [ 2.794931] netconsole: network logging started [ 2.795327] hctosys: unable to open rtc device (rtc0) [ 2.953449] Freeing unused kernel memory: 5120K [ 2.953639] This architecture does not have kernel memory protection. [ 2.953918] Run /init as init process [ 3.173573] mount (54) used greatest stack depth: 12576 bytes left [ 3.252465] mount (55) used greatest stack depth: 12544 bytes left Welcome to Buildroot buildroot login: Balamuruhan S (3): powerpc ppc-opcode: add divde and divdeu opcodes powerpc sstep: add support for divde[.] and divdeu[.] instructions powerpc test_emulate_step: add testcases for divde[.] and divdeu[.] instructions arch/powerpc/include/asm/ppc-opcode.h | 8 ++ arch/powerpc/lib/sstep.c | 13 +- arch/powerpc/lib/test_emulate_step.c | 164 ++++++++++++++++++++++++++ 3 files changed, 184 insertions(+), 1 deletion(-) base-commit: 9c17a47d827c00401c2ff2ba71d7ecf08ed5b677 -- 2.24.1