From patchwork Tue Apr 16 06:39:21 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chinmay Rath X-Patchwork-Id: 1924016 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=ibm.com header.i=@ibm.com header.a=rsa-sha256 header.s=pp1 header.b=UxfFFV0g; dkim-atps=neutral Authentication-Results: legolas.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=patchwork.ozlabs.org) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4VJZFH1gK3z1yZ2 for ; Tue, 16 Apr 2024 16:41:23 +1000 (AEST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rwcUs-0004SU-Sh; Tue, 16 Apr 2024 02:40:50 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rwcUr-0004RE-DZ; Tue, 16 Apr 2024 02:40:49 -0400 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rwcUp-0006jb-Pj; Tue, 16 Apr 2024 02:40:49 -0400 Received: from pps.filterd (m0353729.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 43G5xJKw027999; Tue, 16 Apr 2024 06:40:44 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-transfer-encoding; s=pp1; bh=zdYAlIjWiDzO+Pulqn/Pyu7g66SOTh6p+XyZYb4MTE4=; b=UxfFFV0gzcttubxfLNJDEalrPNfo49F30AAJol1ZTldL5czQKJ8844ZRxDU5lgHO9EsY X1xAcA/9vPxd8tzQlGqRdVVJ0hopBZKTySDyrTocrdjqSkQQ6o+EpcMHB++ZTH6VkqBV gFMphSK4LJQwVWsP4Y3SgdiOwFA28Q2HBAnd6S/uIJoj9Z4Ka40C+dz+PH16wy6sivZc dn2AfXKuUAhS5ez5gA1y2o1jhALP2YG4RoD//KC8c+OGrRt+HDd9lDmid3wauXDpHREt 8Fl7qhN5duUjgfakKr+oSaJqn8BaWJSo7f+ZW+UPksvYehqqoer2lx+T+4Sm7EYsNaw4 MA== Received: from pps.reinject (localhost [127.0.0.1]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 3xhkmr02jv-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 16 Apr 2024 06:40:43 +0000 Received: from m0353729.ppops.net (m0353729.ppops.net [127.0.0.1]) by pps.reinject (8.17.1.5/8.17.1.5) with ESMTP id 43G6ehtO027013; Tue, 16 Apr 2024 06:40:43 GMT Received: from ppma21.wdc07v.mail.ibm.com (5b.69.3da9.ip4.static.sl-reverse.com [169.61.105.91]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 3xhkmr02js-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 16 Apr 2024 06:40:43 +0000 Received: from pps.filterd (ppma21.wdc07v.mail.ibm.com [127.0.0.1]) by ppma21.wdc07v.mail.ibm.com (8.17.1.19/8.17.1.19) with ESMTP id 43G5KVYl023576; Tue, 16 Apr 2024 06:40:42 GMT Received: from smtprelay07.fra02v.mail.ibm.com ([9.218.2.229]) by ppma21.wdc07v.mail.ibm.com (PPS) with ESMTPS id 3xg5cnvgnw-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 16 Apr 2024 06:40:42 +0000 Received: from smtpav01.fra02v.mail.ibm.com (smtpav01.fra02v.mail.ibm.com [10.20.54.100]) by smtprelay07.fra02v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 43G6ecHE52298204 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 16 Apr 2024 06:40:40 GMT Received: from smtpav01.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 2622420043; Tue, 16 Apr 2024 06:40:38 +0000 (GMT) Received: from smtpav01.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id E67E920067; Tue, 16 Apr 2024 06:40:36 +0000 (GMT) Received: from localhost.in.ibm.com (unknown [9.199.192.140]) by smtpav01.fra02v.mail.ibm.com (Postfix) with ESMTP; Tue, 16 Apr 2024 06:40:36 +0000 (GMT) From: Chinmay Rath To: qemu-ppc@nongnu.org Cc: qemu-devel@nongnu.org, npiggin@gmail.com, danielhb413@gmail.com, richard.henderson@linaro.org, harshpb@linux.ibm.com Subject: [PATCH 2/8] target/ppc: Make divw[u] handler method decodetree compatible. Date: Tue, 16 Apr 2024 12:09:21 +0530 Message-Id: <20240416063927.99428-3-rathc@linux.ibm.com> X-Mailer: git-send-email 2.39.3 In-Reply-To: <20240416063927.99428-1-rathc@linux.ibm.com> References: <20240416063927.99428-1-rathc@linux.ibm.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-GUID: bZ3nVH-83Ngap1yRCWFvjH3gQDaINtMV X-Proofpoint-ORIG-GUID: Mn0YLQAhUYGQHAZgok1vEOXlCaFOvBCx X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.1011,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2024-04-16_04,2024-04-15_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 adultscore=0 impostorscore=0 bulkscore=0 mlxlogscore=811 spamscore=0 phishscore=0 lowpriorityscore=0 priorityscore=1501 mlxscore=0 clxscore=1015 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2404010000 definitions=main-2404160039 Received-SPF: pass client-ip=148.163.156.1; envelope-from=rathc@linux.ibm.com; helo=mx0a-001b2d01.pphosted.com X-Spam_score_int: -19 X-Spam_score: -2.0 X-Spam_bar: -- X-Spam_report: (-2.0 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, 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: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org The handler methods for divw[u] instructions internally use Rc(ctx->opcode), for extraction of Rc field of instructions, which poses a problem if we move the above said instructions to decodetree, as the ctx->opcode field is not popluated in decodetree. Hence, making it decodetree compatible, so that the mentioned insns can be safely move to decodetree specs. Signed-off-by: Chinmay Rath Reviewed-by: Richard Henderson --- target/ppc/translate.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/target/ppc/translate.c b/target/ppc/translate.c index c45547a770..be7d807e3c 100644 --- a/target/ppc/translate.c +++ b/target/ppc/translate.c @@ -1738,8 +1738,9 @@ static inline void gen_op_arith_add(DisasContext *ctx, TCGv ret, TCGv arg1, } } -static inline void gen_op_arith_divw(DisasContext *ctx, TCGv ret, TCGv arg1, - TCGv arg2, int sign, int compute_ov) +static inline void gen_op_arith_divw(DisasContext *ctx, TCGv ret, + TCGv arg1, TCGv arg2, bool sign, + bool compute_ov, bool compute_rc0) { TCGv_i32 t0 = tcg_temp_new_i32(); TCGv_i32 t1 = tcg_temp_new_i32(); @@ -1773,7 +1774,7 @@ static inline void gen_op_arith_divw(DisasContext *ctx, TCGv ret, TCGv arg1, tcg_gen_or_tl(cpu_so, cpu_so, cpu_ov); } - if (unlikely(Rc(ctx->opcode) != 0)) { + if (unlikely(compute_rc0)) { gen_set_Rc0(ctx, ret); } } @@ -1783,7 +1784,7 @@ static void glue(gen_, name)(DisasContext *ctx) \ { \ gen_op_arith_divw(ctx, cpu_gpr[rD(ctx->opcode)], \ cpu_gpr[rA(ctx->opcode)], cpu_gpr[rB(ctx->opcode)], \ - sign, compute_ov); \ + sign, compute_ov, Rc(ctx->opcode)); \ } /* divwu divwu. divwuo divwuo. */ GEN_INT_ARITH_DIVW(divwu, 0x0E, 0, 0);