Message ID | 20190306155031.4291-7-steven.price@arm.com (mailing list archive) |
---|---|
State | New, archived |
Headers | show
Return-Path: <linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org> Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id D61F817E0 for <patchwork-linux-arm@patchwork.kernel.org>; Wed, 6 Mar 2019 15:52:06 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id BD6C12E7AA for <patchwork-linux-arm@patchwork.kernel.org>; Wed, 6 Mar 2019 15:52:06 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id B64FA2E78E; Wed, 6 Mar 2019 15:52:06 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 4D33C2E797 for <patchwork-linux-arm@patchwork.kernel.org>; Wed, 6 Mar 2019 15:52:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=SQCe4tLErIKLzfd/1c7pJKH9MPW/+foD9Dtaai8VBPY=; b=mYVPIYlmxMgg38 njef/v7kmQxr9buwLCwsp5OB1QYo3pBCdXAUgOX5JCWaT1pcz/kwghnwwzHbNiyjc7KkIVopDKYq+ IClqBbiOKc7Z8oTH3YzkIFgVeYOcs93DkC1AkMXoI0PYa2AswlFVSDm//exdMoK8W/6cnuZk/MRF6 zGKK86pbAuuETz/atVSN45aiX1dYZjUFOUS2w1n9mSjgUCPt5xMOR1LokQPGGoKu6gIhIKXTJl/tH zf2NAYV7B2fpIMnTJT+vG5JTYvlieL+4ALBVnUxSFNziwpRVnFuOstMdyQaD1nnAKuKHmIuMdd23X IAKa0rBgjtGHHK47hH3w==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1h1Yps-0000XR-Dy; Wed, 06 Mar 2019 15:52:00 +0000 Received: from foss.arm.com ([217.140.101.70]) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1h1Yp3-0007qo-K5 for linux-arm-kernel@lists.infradead.org; Wed, 06 Mar 2019 15:51:36 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 4631D80D; Wed, 6 Mar 2019 07:51:09 -0800 (PST) Received: from e112269-lin.arm.com (e112269-lin.cambridge.arm.com [10.1.196.69]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 94F673F703; Wed, 6 Mar 2019 07:51:05 -0800 (PST) From: Steven Price <steven.price@arm.com> To: linux-mm@kvack.org Subject: [PATCH v4 06/19] s390: mm: Add p?d_large() definitions Date: Wed, 6 Mar 2019 15:50:18 +0000 Message-Id: <20190306155031.4291-7-steven.price@arm.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190306155031.4291-1-steven.price@arm.com> References: <20190306155031.4291-1-steven.price@arm.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190306_075110_266638_6D424508 X-CRM114-Status: GOOD ( 11.11 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: <linux-arm-kernel.lists.infradead.org> List-Unsubscribe: <http://lists.infradead.org/mailman/options/linux-arm-kernel>, <mailto:linux-arm-kernel-request@lists.infradead.org?subject=unsubscribe> List-Archive: <http://lists.infradead.org/pipermail/linux-arm-kernel/> List-Post: <mailto:linux-arm-kernel@lists.infradead.org> List-Help: <mailto:linux-arm-kernel-request@lists.infradead.org?subject=help> List-Subscribe: <http://lists.infradead.org/mailman/listinfo/linux-arm-kernel>, <mailto:linux-arm-kernel-request@lists.infradead.org?subject=subscribe> Cc: Mark Rutland <Mark.Rutland@arm.com>, Peter Zijlstra <peterz@infradead.org>, Catalin Marinas <catalin.marinas@arm.com>, Dave Hansen <dave.hansen@linux.intel.com>, Will Deacon <will.deacon@arm.com>, "H. Peter Anvin" <hpa@zytor.com>, "Liang, Kan" <kan.liang@linux.intel.com>, linux-s390@vger.kernel.org, x86@kernel.org, Steven Price <steven.price@arm.com>, Ingo Molnar <mingo@redhat.com>, Arnd Bergmann <arnd@arndb.de>, Heiko Carstens <heiko.carstens@de.ibm.com>, =?utf-8?b?SsOpcsO0bWUgR2xpc3Nl?= <jglisse@redhat.com>, Borislav Petkov <bp@alien8.de>, Andy Lutomirski <luto@kernel.org>, Thomas Gleixner <tglx@linutronix.de>, linux-arm-kernel@lists.infradead.org, Ard Biesheuvel <ard.biesheuvel@linaro.org>, linux-kernel@vger.kernel.org, James Morse <james.morse@arm.com>, Martin Schwidefsky <schwidefsky@de.ibm.com> Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" <linux-arm-kernel-bounces@lists.infradead.org> Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP |
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Convert x86 & arm64 to use generic page walk
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expand
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diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h index 063732414dfb..1f188004ba95 100644 --- a/arch/s390/include/asm/pgtable.h +++ b/arch/s390/include/asm/pgtable.h @@ -679,6 +679,7 @@ static inline int pud_none(pud_t pud) return pud_val(pud) == _REGION3_ENTRY_EMPTY; } +#define pud_large pud_large static inline int pud_large(pud_t pud) { if ((pud_val(pud) & _REGION_ENTRY_TYPE_MASK) != _REGION_ENTRY_TYPE_R3) @@ -696,6 +697,7 @@ static inline unsigned long pud_pfn(pud_t pud) return (pud_val(pud) & origin_mask) >> PAGE_SHIFT; } +#define pmd_large pmd_large static inline int pmd_large(pmd_t pmd) { return (pmd_val(pmd) & _SEGMENT_ENTRY_LARGE) != 0;
walk_page_range() is going to be allowed to walk page tables other than those of user space. For this it needs to know when it has reached a 'leaf' entry in the page tables. This information is provided by the p?d_large() functions/macros. For s390, pud_large() and pmd_large() are already implemented as static inline functions. Add a #define so we don't pick up the generic version introduced in a later patch. CC: Martin Schwidefsky <schwidefsky@de.ibm.com> CC: Heiko Carstens <heiko.carstens@de.ibm.com> CC: linux-s390@vger.kernel.org Signed-off-by: Steven Price <steven.price@arm.com> --- arch/s390/include/asm/pgtable.h | 2 ++ 1 file changed, 2 insertions(+)