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=-9.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT autolearn=ham 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 10388C3A5A4 for ; Fri, 30 Aug 2019 12:07:28 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id D0C2021897 for ; Fri, 30 Aug 2019 12:07:26 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org D0C2021897 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=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 9B6D56B0008; Fri, 30 Aug 2019 08:07:25 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 8EFF86B000A; Fri, 30 Aug 2019 08:07:25 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 794036B000C; Fri, 30 Aug 2019 08:07:25 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0004.hostedemail.com [216.40.44.4]) by kanga.kvack.org (Postfix) with ESMTP id 54D8A6B0008 for ; Fri, 30 Aug 2019 08:07:25 -0400 (EDT) Received: from smtpin18.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay01.hostedemail.com (Postfix) with SMTP id 053B2180AD7C1 for ; Fri, 30 Aug 2019 12:07:25 +0000 (UTC) X-FDA: 75878969250.18.crown05_7adeaf45f7a4c X-HE-Tag: crown05_7adeaf45f7a4c X-Filterd-Recvd-Size: 4803 Received: from mx0a-001b2d01.pphosted.com (mx0a-001b2d01.pphosted.com [148.163.156.1]) by imf18.hostedemail.com (Postfix) with ESMTP for ; Fri, 30 Aug 2019 12:07:24 +0000 (UTC) Received: from pps.filterd (m0098404.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.27/8.16.0.27) with SMTP id x7UC3Xns042856 for ; Fri, 30 Aug 2019 08:07:23 -0400 Received: from e06smtp03.uk.ibm.com (e06smtp03.uk.ibm.com [195.75.94.99]) by mx0a-001b2d01.pphosted.com with ESMTP id 2uq364gykw-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Fri, 30 Aug 2019 08:07:22 -0400 Received: from localhost by e06smtp03.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Fri, 30 Aug 2019 13:07:20 +0100 Received: from b06cxnps3074.portsmouth.uk.ibm.com (9.149.109.194) by e06smtp03.uk.ibm.com (192.168.101.133) with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted; (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256) Fri, 30 Aug 2019 13:07:17 +0100 Received: from d06av24.portsmouth.uk.ibm.com (mk.ibm.com [9.149.105.60]) by b06cxnps3074.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id x7UC7F0Z60686574 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 30 Aug 2019 12:07:15 GMT Received: from d06av24.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 64B1842041; Fri, 30 Aug 2019 12:07:15 +0000 (GMT) Received: from d06av24.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 991B14204B; Fri, 30 Aug 2019 12:07:14 +0000 (GMT) Received: from pomme.com (unknown [9.145.17.35]) by d06av24.portsmouth.uk.ibm.com (Postfix) with ESMTP; Fri, 30 Aug 2019 12:07:14 +0000 (GMT) From: Laurent Dufour To: mpe@ellerman.id.au, benh@kernel.crashing.org, paulus@samba.org, aneesh.kumar@linux.ibm.com, npiggin@gmail.com Cc: linuxppc-dev@lists.ozlabs.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: [PATCH 1/3] powerpc/mm: Initialize the HPTE encoding values Date: Fri, 30 Aug 2019 14:07:10 +0200 X-Mailer: git-send-email 2.23.0 In-Reply-To: <20190830120712.22971-1-ldufour@linux.ibm.com> References: <20190830120712.22971-1-ldufour@linux.ibm.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 x-cbid: 19083012-0012-0000-0000-00000344A064 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 19083012-0013-0000-0000-0000217EE443 Message-Id: <20190830120712.22971-2-ldufour@linux.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:,, definitions=2019-08-30_05:,, signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1906280000 definitions=main-1908300132 Content-Transfer-Encoding: quoted-printable X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Before reading the HPTE encoding values we initialize all of them to -1 (= an invalid value) to later being able to detect the initialized ones. Signed-off-by: Laurent Dufour --- arch/powerpc/mm/book3s64/hash_utils.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/arch/powerpc/mm/book3s64/hash_utils.c b/arch/powerpc/mm/book= 3s64/hash_utils.c index c3bfef08dcf8..2039bc315459 100644 --- a/arch/powerpc/mm/book3s64/hash_utils.c +++ b/arch/powerpc/mm/book3s64/hash_utils.c @@ -408,7 +408,7 @@ static int __init htab_dt_scan_page_sizes(unsigned lo= ng node, { const char *type =3D of_get_flat_dt_prop(node, "device_type", NULL); const __be32 *prop; - int size =3D 0; + int size =3D 0, idx, base_idx; =20 /* We are scanning "cpu" nodes only */ if (type =3D=3D NULL || strcmp(type, "cpu") !=3D 0) @@ -418,6 +418,11 @@ static int __init htab_dt_scan_page_sizes(unsigned l= ong node, if (!prop) return 0; =20 + /* Set all the penc values to invalid */ + for (base_idx =3D 0; base_idx < MMU_PAGE_COUNT; base_idx++) + for (idx =3D 0; idx < MMU_PAGE_COUNT; idx++) + mmu_psize_defs[base_idx].penc[idx] =3D -1; + pr_info("Page sizes from device-tree:\n"); size /=3D 4; cur_cpu_spec->mmu_features &=3D ~(MMU_FTR_16M_PAGE); @@ -426,7 +431,6 @@ static int __init htab_dt_scan_page_sizes(unsigned lo= ng node, unsigned int slbenc =3D be32_to_cpu(prop[1]); unsigned int lpnum =3D be32_to_cpu(prop[2]); struct mmu_psize_def *def; - int idx, base_idx; =20 size -=3D 3; prop +=3D 3; base_idx =3D get_idx_from_shift(base_shift); --=20 2.23.0