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 Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 4FE89D6E2BF for ; Thu, 18 Dec 2025 17:48:09 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 9B9126B0089; Thu, 18 Dec 2025 12:48:08 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 979EB6B008A; Thu, 18 Dec 2025 12:48:08 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 8A70F6B008C; Thu, 18 Dec 2025 12:48:08 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0016.hostedemail.com [216.40.44.16]) by kanga.kvack.org (Postfix) with ESMTP id 7DFF16B0089 for ; Thu, 18 Dec 2025 12:48:08 -0500 (EST) Received: from smtpin29.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay08.hostedemail.com (Postfix) with ESMTP id 0260314023E for ; Thu, 18 Dec 2025 17:48:07 +0000 (UTC) X-FDA: 84233325456.29.2C6E337 Received: from mail-pf1-f169.google.com (mail-pf1-f169.google.com [209.85.210.169]) by imf17.hostedemail.com (Postfix) with ESMTP id 12B1140008 for ; Thu, 18 Dec 2025 17:48:05 +0000 (UTC) Authentication-Results: imf17.hostedemail.com; dkim=pass header.d=gmail.com header.s=20230601 header.b=UbRCPhY4; spf=pass (imf17.hostedemail.com: domain of pilgrimtao@gmail.com designates 209.85.210.169 as permitted sender) smtp.mailfrom=pilgrimtao@gmail.com; dmarc=pass (policy=none) header.from=gmail.com ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1766080086; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=epYK/hDqdjWsYGExN15M5ZNaIRiA4fpEDtVX6uPFKD4=; b=ia1tGH66vMlZgaZOcX3N+P4PAzaeolNSuJq7hyNA5pFGgSL0fsYmPRNB2HUt+I0Tcnztqw EaoIZVCEuq9zgwzKevBf/uRqd9NUV7nI6fEWpebzfdcXsJgnWb+xoyR58qktYtmgamrWc5 OzjfuUpFrDtn49rfgbbsGf4vRKGC3OY= ARC-Authentication-Results: i=1; imf17.hostedemail.com; dkim=pass header.d=gmail.com header.s=20230601 header.b=UbRCPhY4; spf=pass (imf17.hostedemail.com: domain of pilgrimtao@gmail.com designates 209.85.210.169 as permitted sender) smtp.mailfrom=pilgrimtao@gmail.com; dmarc=pass (policy=none) header.from=gmail.com ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1766080086; a=rsa-sha256; cv=none; b=lmnHoFA4Tb2kFacblN/CoqzD1MrzYZfrpV5cL/tyrOrO+L+1ekCZWtB8FDb+S5qTzaZci1 ADU0HasBeKAVQr5CJEX//trqoUH+UZq+2w74lMgoJAAnzJZaI0OwuXsLYtm/QZyyoGiOCv 5Nn6eWJdBwxTA7a020+InxrdU1Kiffs= Received: by mail-pf1-f169.google.com with SMTP id d2e1a72fcca58-7f121c00dedso1197573b3a.0 for ; Thu, 18 Dec 2025 09:48:05 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1766080085; x=1766684885; darn=kvack.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=epYK/hDqdjWsYGExN15M5ZNaIRiA4fpEDtVX6uPFKD4=; b=UbRCPhY4sqZBYd0BX1IliYqOHNl77a09J4h7abmosTgdT52Az5ke2AhCNbT7wslonX uh1ZmYkv1IKTUg3D+pwyWG2HIG1ZnGAzNvkrDiZ1noaWxOjqOIz2MYVZsJRqfR54uT2e RZUuXpRrJjB6trfhoHU2yAlhjlH9Ti779Gmv6k5JFPmen98DtPt+PRHoxAwB4RwJD4ct rpif/4FYz6mG262pZSFt3/zhLCKzqKXknVxj7YZrc/7VoyyZBYuI3vdR+O9eJ+q1JoKZ QoM7JpsTCgtMKf0AUOl2Yz9gtWnmUDLm4Y771bPNt/ss0AiggiHAT1/IlIIf3eEDc+Ub FsYA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1766080085; x=1766684885; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to; bh=epYK/hDqdjWsYGExN15M5ZNaIRiA4fpEDtVX6uPFKD4=; b=IExtZLJM0/fo0hvGvVr6DGNlzW1BXVYbSSGI6PgHLp5h74b53LNi5LWCROYVdJc3EU 5/Sfmv+Qa2MWAgKzq2fXcBoKhdxryrABsE1FuI8kDVDj88C3BmaqnXSWI5Y5wZUUns2S f0YWnIH0TC38TL0m7fiBe/kWtCYTSf5fLBZXaNx/sK+iciiDbmVIsISTNxuaXX7UrTDl BvPuL6h63HCjtdJ+EbGofCJCQx3ydKYywmG+kBy5GUkxPXSHA5kXZ2bFJuRkvoDnkF+j c9Rs5hGr8hryUjtFqVPQ7ZFhSmKbpcdloUfYnrQStcqu8sWGlQzCy4DuLWRb/X5iNtTg UrWQ== X-Forwarded-Encrypted: i=1; AJvYcCUfzDItRgI6i5u2iko6SR0NCJp7weR7tvZoSaKiqYV6bhiI2jwlJfVcqYGVbiKjq59qmNY62T8Q5Q==@kvack.org X-Gm-Message-State: AOJu0Yw6Kc0Kj2XWu5A2s1Kf46F1RVjH+OBeH3wvOJUTxwcWIWUH6H37 gXLUAfkVio+P42gwmqRMgMH43AFIccGhwr/Qkx7R2lweA7+vKRq5Ofpr X-Gm-Gg: AY/fxX7lz6YtErItFZEOhHn0fRlHC7ldtE9lWd0+CpNiigGHA745HhvLFiV1pE6gr1Y T/FUFBWioS+hJcSUUs9ZhOQLk+4Lyx+t9IK80TfYXe0Uw0DvQYvg7LBW1M3dCk8YZ4sP32Jghg8 q0Krok3XGFrtyuSZjik6+sYxSR7SLz4GNtNezLr3Tc0GHlMb2DbDpHFfUuKEXHLCglVvdqaDfGu 8LUk85+r+V5pGjNJrEjXXO5a9+dA8Wb5OYH0vLuw9REsxW6xAPjfwokE21lkgS2fdTEcHEvcXk9 nakc8qRRr8Tj7RR3c4sMbCaYsE21cVbErQGhX2tBziUXZmVRaoZkjGGJ8LB0XJznjjQ9dOH41mx LUMecmxorKMvQLIINUR+kpP9Nxl2vCa5Z9vXJqhbp79l3nuPQzeSoNHYktsoFqO+Pgk0hrG0/Hu zRLyhAFgJtPbQ5K5h1sV4RBN125QuCL13n+supSAKgM7g= X-Google-Smtp-Source: AGHT+IEiUJb9RR+h+zWjnVgNYIE3LIavRn+FigrW0373Cgz4UkWlOkBrVQuLtzTTA20/OyG5rizoPg== X-Received: by 2002:a05:6a20:258c:b0:366:2476:db4a with SMTP id adf61e73a8af0-376aabfb668mr280882637.59.1766080084881; Thu, 18 Dec 2025 09:48:04 -0800 (PST) Received: from localhost.localdomain ([113.218.252.152]) by smtp.gmail.com with ESMTPSA id 41be03b00d2f7-c1d2fffa3e7sm2847400a12.24.2025.12.18.09.47.59 (version=TLS1_3 cipher=TLS_CHACHA20_POLY1305_SHA256 bits=256/256); Thu, 18 Dec 2025 09:48:04 -0800 (PST) From: chengkaitao To: davem@davemloft.net, andreas@gaisler.com, akpm@linux-foundation.org, david@kernel.org, lorenzo.stoakes@oracle.com, Liam.Howlett@oracle.com, vbabka@suse.cz, rppt@kernel.org, surenb@google.com, mhocko@suse.com Cc: kevin.brodsky@arm.com, dave.hansen@linux.intel.com, ziy@nvidia.com, chengkaitao@kylinos.cn, willy@infradead.org, zhengqi.arch@bytedance.com, sparclinux@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: [PATCH v3 1/3] sparc: Use vmemmap_populate_hugepages for vmemmap_populate Date: Fri, 19 Dec 2025 01:47:47 +0800 Message-ID: <20251218174749.45965-2-pilgrimtao@gmail.com> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20251218174749.45965-1-pilgrimtao@gmail.com> References: <20251218174749.45965-1-pilgrimtao@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspamd-Server: rspam12 X-Rspamd-Queue-Id: 12B1140008 X-Stat-Signature: 5maz1nb91aiw533sd3i49nfdhamu7bgm X-Rspam-User: X-HE-Tag: 1766080085-426425 X-HE-Meta: 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 3MjI7eNm 8CmK49gfABR+LL8HdMudZL9UiZVdpPAVyMeOpze3kqbSPqVp4NK3+t3vQcgaCQjVVLXa6SK33IEvRe3qJ1vxGYDqxKzTkcdfxgRCS6ZOdefHwl9ZHDVj5rjxbor2VgVv5CFfEWBcjHS5T+H6zjlQPtPp98xYblTdNjSPDjSEXHdgbZc+ysw0ZJjlb1B3SWCFg5+WIHg+2fmz2w0BI7Q2MQI9+3+ZUVcZ1YJdTXwJNhwAGkJ1tA2SfU4+A9GlIHE7XtLsuIhWarR3HQ8puoIbJ94gu/lBsZG2w7nULVv0bikBFJgECnrSIgZ6Wuf+l2eC8PiReGI3rxGMkQMgNR52E0hy9d2ZvuQBrcwzKnBpvHykMb8N9qPxKQitxHhE0YIb5tF4Jr85P0/ghQJ3bh9A5yzVFNSLAskCw65y47imlWycZBGjMEyI0uRQQAw== 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: List-Subscribe: List-Unsubscribe: From: Chengkaitao 1. In the SPARC architecture, reimplemented vmemmap_populate using vmemmap_populate_hugepages. 2. Allow the SPARC arch to fallback to vmemmap_populate_basepages(), when vmemmap_alloc_block returns NULL. Signed-off-by: Chengkaitao --- arch/sparc/mm/init_64.c | 47 ++++++++++++----------------------------- 1 file changed, 14 insertions(+), 33 deletions(-) diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c index df9f7c444c39..f477ab1b4f08 100644 --- a/arch/sparc/mm/init_64.c +++ b/arch/sparc/mm/init_64.c @@ -2581,8 +2581,8 @@ unsigned long _PAGE_CACHE __read_mostly; EXPORT_SYMBOL(_PAGE_CACHE); #ifdef CONFIG_SPARSEMEM_VMEMMAP -int __meminit vmemmap_populate(unsigned long vstart, unsigned long vend, - int node, struct vmem_altmap *altmap) +void __meminit vmemmap_set_pmd(pmd_t *pmd, void *p, int node, + unsigned long addr, unsigned long next) { unsigned long pte_base; @@ -2595,39 +2595,20 @@ int __meminit vmemmap_populate(unsigned long vstart, unsigned long vend, pte_base |= _PAGE_PMD_HUGE; - vstart = vstart & PMD_MASK; - vend = ALIGN(vend, PMD_SIZE); - for (; vstart < vend; vstart += PMD_SIZE) { - pgd_t *pgd = vmemmap_pgd_populate(vstart, node); - unsigned long pte; - p4d_t *p4d; - pud_t *pud; - pmd_t *pmd; - - if (!pgd) - return -ENOMEM; - - p4d = vmemmap_p4d_populate(pgd, vstart, node); - if (!p4d) - return -ENOMEM; - - pud = vmemmap_pud_populate(p4d, vstart, node); - if (!pud) - return -ENOMEM; - - pmd = pmd_offset(pud, vstart); - pte = pmd_val(*pmd); - if (!(pte & _PAGE_VALID)) { - void *block = vmemmap_alloc_block(PMD_SIZE, node); - - if (!block) - return -ENOMEM; + pmd_val(*pmd) = pte_base | __pa(p); +} - pmd_val(*pmd) = pte_base | __pa(block); - } - } +int __meminit vmemmap_check_pmd(pmd_t *pmdp, int node, + unsigned long addr, unsigned long next) +{ + vmemmap_verify((pte_t *)pmdp, node, addr, next); + return 1; +} - return 0; +int __meminit vmemmap_populate(unsigned long vstart, unsigned long vend, + int node, struct vmem_altmap *altmap) +{ + return vmemmap_populate_hugepages(vstart, vend, node, altmap); } #endif /* CONFIG_SPARSEMEM_VMEMMAP */ -- 2.50.1 (Apple Git-155)