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Violators will be prosecuted; (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256) Mon, 3 Sep 2018 16:19:57 +0100 Received: from d06av21.portsmouth.uk.ibm.com (d06av21.portsmouth.uk.ibm.com [9.149.105.232]) by b06cxnps3075.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id w83FJv1H40960112 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Mon, 3 Sep 2018 15:19:57 GMT Received: from d06av21.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 91F7052052; Mon, 3 Sep 2018 18:19:50 +0100 (BST) Received: from localhost.localdomain (unknown [9.195.22.129]) by d06av21.portsmouth.uk.ibm.com (Postfix) with ESMTP id 57D7652050; Mon, 3 Sep 2018 18:19:49 +0100 (BST) From: Sandipan Das To: mpe@ellerman.id.au Subject: [PATCH 6/6] powerpc sstep: Add modsd, modud instruction emulation Date: Mon, 3 Sep 2018 20:49:38 +0530 X-Mailer: git-send-email 2.14.4 In-Reply-To: References: In-Reply-To: References: X-TM-AS-GCONF: 00 x-cbid: 18090315-0028-0000-0000-000002F37AF8 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 18090315-0029-0000-0000-000023ACEF11 Message-Id: <15e572f61bb5c74b01210b9245ce2750a31d6002.1535609090.git.sandipan@linux.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:, , definitions=2018-09-03_09:, , signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=1 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=908 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1807170000 definitions=main-1809030160 X-Mailman-Approved-At: Tue, 04 Sep 2018 07:22:12 +1000 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.27 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: paulus@samba.org, naveen.n.rao@linux.vnet.ibm.com, linuxppc-dev@lists.ozlabs.org, anton@samba.org, ravi.bangoria@linux.ibm.com Errors-To: linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" This adds emulation support for the following integer instructions: * Modulo Signed Doubleword (modsd) * Modulo Unsigned Doubleword (modud) Signed-off-by: Sandipan Das --- arch/powerpc/lib/sstep.c | 17 +++++++++++++++-- 1 file changed, 15 insertions(+), 2 deletions(-) diff --git a/arch/powerpc/lib/sstep.c b/arch/powerpc/lib/sstep.c index ddc2de28e00a..b3b508d175fb 100644 --- a/arch/powerpc/lib/sstep.c +++ b/arch/powerpc/lib/sstep.c @@ -1704,7 +1704,13 @@ int analyse_instr(struct instruction_op *op, const struct pt_regs *regs, (int) regs->gpr[rb]; goto arith_done; - +#ifdef __powerpc64__ + case 265: /* modud */ + if (!cpu_has_feature(CPU_FTR_ARCH_300)) + return -1; + op->val = regs->gpr[ra] % regs->gpr[rb]; + goto compute_done; +#endif case 266: /* add */ op->val = regs->gpr[ra] + regs->gpr[rb]; goto arith_done; @@ -1753,7 +1759,14 @@ int analyse_instr(struct instruction_op *op, const struct pt_regs *regs, } return -1; - +#ifdef __powerpc64__ + case 777: /* modsd */ + if (!cpu_has_feature(CPU_FTR_ARCH_300)) + return -1; + op->val = (long int) regs->gpr[ra] % + (long int) regs->gpr[rb]; + goto compute_done; +#endif case 779: /* modsw */ if (!cpu_has_feature(CPU_FTR_ARCH_300)) return -1;