From patchwork Thu Sep 21 16:20:02 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ryan Roberts X-Patchwork-Id: 13394020 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id AC9F4E71094 for ; Thu, 21 Sep 2023 16:21:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=sVnWfb0veYgLCywlGsSGwVSryoYIZGqgR8OwCYxy3j0=; b=HPXXDvGpAapQrD Bo3hae/LBpZ3YECSaHF3kJxjUmjkxK76BYrJ0BzIRSlh0LCgbE6yVncmEOk6mQaQ2hNyPcnEVx9XW RWu0YpJgZq63TV5iz3299SY5m/LoUtTJNPygQAhotO0ops7KJrdoJVOygTH5VnaDuC7wHlcQrLVKj pal7q8j4tjlQ9bxvkku08o1R96lnuuOCzjvuaWzJlSbM9Y/zelZLpK0x4c3QaPM09GFFU6rWK0+18 e+2ZZEG5DABgjCTAWMcGOM4/Ze0nW0MZcg9XZt6t+y0qoty7uCIxaZ/urvnlu4vhEna9sXWyjfbG/ dg7l+r6nnTfcoClRHjZA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qjMQB-006UjM-05; Thu, 21 Sep 2023 16:20:55 +0000 Received: from desiato.infradead.org ([2001:8b0:10b:1:d65d:64ff:fe57:4e05]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qjMPz-006UgA-1k; Thu, 21 Sep 2023 16:20:43 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=desiato.20200630; h=Content-Transfer-Encoding:MIME-Version :References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To: Content-Type:Content-ID:Content-Description; bh=qHCXosr3PvEhIv4wRyQYcPxGRzmyaFYWZMq7sEiKto0=; b=qL/dWMroN1yHW3xsDU7ooB0weE JrVd8ozRQS9imZwSmT5Kfgv1vMLKs/a76FHzmcNfEzQROL7mxFn/fLTfeIFUcHSJmpA3qAC5RB9Cr sNd8jbGBntSsLE1MPqRTD2PMAIzv8wiO8X7M1/tY/ayx0+/GdgoDeI9D8R7uWPfTwB1eRV+TaRK7W GfgKMY9xLGUve+by678cyjBeJ0itP6chSXZntP6e+bRka5/VoifboQUMVjkgfwnpVKFzvs4eWwQb8 Z+FDvCeMAsyGilDz3FQH7lwPEpAo+1vwsFOajNCUzuRIv7HLowf7ej8lpeFD9cdMGeQfeD3kVbykA QVGtIEmw==; Received: from foss.arm.com ([217.140.110.172]) by desiato.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qjMPu-00FUej-0c; Thu, 21 Sep 2023 16:20:42 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id EE7B51758; Thu, 21 Sep 2023 09:21:14 -0700 (PDT) Received: from e125769.cambridge.arm.com (e125769.cambridge.arm.com [10.1.196.26]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 82D213F59C; Thu, 21 Sep 2023 09:20:33 -0700 (PDT) From: Ryan Roberts To: Catalin Marinas , Will Deacon , "James E.J. Bottomley" , Helge Deller , Nicholas Piggin , Christophe Leroy , Paul Walmsley , Palmer Dabbelt , Albert Ou , Heiko Carstens , Vasily Gorbik , Alexander Gordeev , Christian Borntraeger , Sven Schnelle , Gerald Schaefer , "David S. Miller" , Arnd Bergmann , Mike Kravetz , Muchun Song , SeongJae Park , Andrew Morton , Uladzislau Rezki , Christoph Hellwig , Lorenzo Stoakes , Anshuman Khandual , Peter Xu , Axel Rasmussen , Qi Zheng Cc: Ryan Roberts , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, sparclinux@vger.kernel.org, linux-mm@kvack.org, stable@vger.kernel.org Subject: [PATCH v1 3/8] riscv: hugetlb: Convert set_huge_pte_at() to take vma Date: Thu, 21 Sep 2023 17:20:02 +0100 Message-Id: <20230921162007.1630149-4-ryan.roberts@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230921162007.1630149-1-ryan.roberts@arm.com> References: <20230921162007.1630149-1-ryan.roberts@arm.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230921_172039_875007_679913F7 X-CRM114-Status: GOOD ( 12.41 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org In order to fix a bug, arm64 needs access to the vma inside it's implementation of set_huge_pte_at(). Provide for this by converting the mm parameter to be a vma. Any implementations that require the mm can access it via vma->vm_mm. This commit makes the required riscv modifications. Separate commits update the other arches and core code, before the actual bug is fixed in arm64. No behavioral changes intended. Signed-off-by: Ryan Roberts Reviewed-by: Alexandre Ghiti --- arch/riscv/include/asm/hugetlb.h | 2 +- arch/riscv/mm/hugetlbpage.c | 3 ++- 2 files changed, 3 insertions(+), 2 deletions(-) diff --git a/arch/riscv/include/asm/hugetlb.h b/arch/riscv/include/asm/hugetlb.h index 34e24f078cc1..be1ac8582bc2 100644 --- a/arch/riscv/include/asm/hugetlb.h +++ b/arch/riscv/include/asm/hugetlb.h @@ -17,7 +17,7 @@ void huge_pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep, unsigned long sz); #define __HAVE_ARCH_HUGE_SET_HUGE_PTE_AT -void set_huge_pte_at(struct mm_struct *mm, +void set_huge_pte_at(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep, pte_t pte); #define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR diff --git a/arch/riscv/mm/hugetlbpage.c b/arch/riscv/mm/hugetlbpage.c index 96225a8533ad..7cdbf0960772 100644 --- a/arch/riscv/mm/hugetlbpage.c +++ b/arch/riscv/mm/hugetlbpage.c @@ -177,11 +177,12 @@ pte_t arch_make_huge_pte(pte_t entry, unsigned int shift, vm_flags_t flags) return entry; } -void set_huge_pte_at(struct mm_struct *mm, +void set_huge_pte_at(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep, pte_t pte) { + struct mm_struct *mm = vma->vm_mm; int i, pte_num; if (!pte_napot(pte)) {