From nobody Sun Feb 8 11:44:50 2026 Received: from mx0b-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 smtp.subspace.kernel.org (Postfix) with ESMTPS id 2C3C125A358 for ; Tue, 11 Feb 2025 16:15:11 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=148.163.158.5 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1739290513; cv=none; b=DoPk0T4YSwvPwCNSSqo68UGU3JiNIsa2WaJ+CDcX/JSmBhTBEFMnaVgo+Xj33SOXEy+wlk3/nQWhJYsnNsO/mLDuvqMbi2hlzu/Hk0KDNVraqLfTncTUTpzVrzcCFC5T9DXvg03Ffz63ZkHb/sfRTHm4Mru1F2yjXp0e5wJGn8U= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1739290513; c=relaxed/simple; bh=Ya9CPMG3cp0++iEmZFhLTWNjdIGwFrlAsN/ATRuYtqY=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=MZu+Mp+POD7oWG84vf3wsdnL4tDBlytq2v2TlueVeYQyHSimf7rHd6oXHeFynvaaweu/NT/V1DYQx89tmbgt68SqNCPtOIe6GW9mkZu6sX20Kgq2OskB81XZNgrnyl9ZaK27iwkKoPF+nx2KPHQ2uIKXBEwG7T97rU/5tCHNtbs= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.ibm.com; spf=pass smtp.mailfrom=linux.ibm.com; dkim=pass (2048-bit key) header.d=ibm.com header.i=@ibm.com header.b=BGuQx3dE; arc=none smtp.client-ip=148.163.158.5 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.ibm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.ibm.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=ibm.com header.i=@ibm.com header.b="BGuQx3dE" Received: from pps.filterd (m0360072.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 51B7XsWl016779; Tue, 11 Feb 2025 16:15:00 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=cc :content-transfer-encoding:date:from:in-reply-to:message-id :mime-version:references:subject:to; s=pp1; bh=1/MffBCUm9m82jvA1 NRJumlTJ0JqOPkuZuVYPCmtM1o=; b=BGuQx3dEXiml+/fqh7ikWhU7v+YLresXm UPWS8CFxBcuPO91eywCSG1ejECjYYJsMh45itoin99j+GWMW4AcTEYvSJWIL+gJt S/69iM7i1XJzu9s7nug6+XtKfCb0MCDKTvRdPxrrSLgEG2qXZCGP3Aaj50hehBHj tJHdTchwiheWkVRKOCLGHIENY/fjUa9USdEA4HSYR91HZ90rCNiZHRCbrdli8NEU PdmXcQC0HihTunCgGZehVKtsMVHfzeHwdLYuTgpLRzuXKXTAn25cBI4KlUQwdyZv cZaeo0DkNbFxsj9GuifJnBADlZzrx4W2wjDmsznOAG4SBfhPk9MsA== Received: from ppma23.wdc07v.mail.ibm.com (5d.69.3da9.ip4.static.sl-reverse.com [169.61.105.93]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 44r28ptdub-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 11 Feb 2025 16:15:00 +0000 (GMT) Received: from pps.filterd (ppma23.wdc07v.mail.ibm.com [127.0.0.1]) by ppma23.wdc07v.mail.ibm.com (8.18.1.2/8.18.1.2) with ESMTP id 51BDg5xx016692; Tue, 11 Feb 2025 16:14:59 GMT Received: from smtprelay02.fra02v.mail.ibm.com ([9.218.2.226]) by ppma23.wdc07v.mail.ibm.com (PPS) with ESMTPS id 44pk3k41b1-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 11 Feb 2025 16:14:59 +0000 Received: from smtpav03.fra02v.mail.ibm.com (smtpav03.fra02v.mail.ibm.com [10.20.54.102]) by smtprelay02.fra02v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 51BGEvJv38535552 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 11 Feb 2025 16:14:57 GMT Received: from smtpav03.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 7F0A320040; Tue, 11 Feb 2025 16:14:57 +0000 (GMT) Received: from smtpav03.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 0C72120043; Tue, 11 Feb 2025 16:14:57 +0000 (GMT) Received: from ozlabs.au.ibm.com (unknown [9.63.197.14]) by smtpav03.fra02v.mail.ibm.com (Postfix) with ESMTP; Tue, 11 Feb 2025 16:14:57 +0000 (GMT) Received: from jarvis.ozlabs.ibm.com.com (unknown [9.150.7.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.au.ibm.com (Postfix) with ESMTPSA id 6CB2B6014F; Wed, 12 Feb 2025 03:14:52 +1100 (AEDT) From: Andrew Donnellan To: linuxppc-dev@lists.ozlabs.org Cc: x86@kernel.org, linux-mm@kvack.org, linux-riscv@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, pasha.tatashin@soleen.com, sweettea-kernel@dorminy.me Subject: [PATCH v13 08/11] powerpc: mm: Add pud_pfn() stub Date: Wed, 12 Feb 2025 03:14:01 +1100 Message-ID: <20250211161404.850215-9-ajd@linux.ibm.com> X-Mailer: git-send-email 2.48.1 In-Reply-To: <20250211161404.850215-1-ajd@linux.ibm.com> References: <20250211161404.850215-1-ajd@linux.ibm.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: D1Ls5QKgaJ4jVjTDfpaP9Z9WwkAgttuP X-Proofpoint-GUID: D1Ls5QKgaJ4jVjTDfpaP9Z9WwkAgttuP X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1057,Hydra:6.0.680,FMLib:17.12.68.34 definitions=2025-02-11_07,2025-02-11_01,2024-11-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 adultscore=0 suspectscore=0 impostorscore=0 mlxlogscore=742 lowpriorityscore=0 clxscore=1015 phishscore=0 priorityscore=1501 malwarescore=0 spamscore=0 mlxscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2501170000 definitions=main-2502110106 Content-Type: text/plain; charset="utf-8" From: Rohan McLure The page table check feature requires that pud_pfn() be defined on each consuming architecture. Since only 64-bit, Book3S platforms allow for hugepages at this upper level, and since the calling code is gated by a call to pud_user_accessible_page(), which will return zero, include this stub as a BUILD_BUG(). Signed-off-by: Rohan McLure Reviewed-by: Pasha Tatashin Signed-off-by: Andrew Donnellan --- arch/powerpc/include/asm/pgtable.h | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/arch/powerpc/include/asm/pgtable.h b/arch/powerpc/include/asm/= pgtable.h index 2f72ad885332..bb43e4f46367 100644 --- a/arch/powerpc/include/asm/pgtable.h +++ b/arch/powerpc/include/asm/pgtable.h @@ -215,6 +215,15 @@ static inline bool arch_supports_memmap_on_memory(unsi= gned long vmemmap_size) =20 #endif /* CONFIG_PPC64 */ =20 +#ifndef pud_pfn +#define pud_pfn pud_pfn +static inline int pud_pfn(pud_t pud) +{ + BUILD_BUG(); + return 0; +} +#endif + #endif /* __ASSEMBLY__ */ =20 #endif /* _ASM_POWERPC_PGTABLE_H */ --=20 2.48.1