From patchwork Wed Jun 6 07:01:20 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chintan Pandya X-Patchwork-Id: 10449749 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 8283D60170 for ; Wed, 6 Jun 2018 07:02:22 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 70A5E29860 for ; Wed, 6 Jun 2018 07:02:22 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 63CA229867; Wed, 6 Jun 2018 07:02:22 +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=-2.9 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI 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 09A6429860 for ; Wed, 6 Jun 2018 07:02:22 +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:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id: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=K+uLle5fLKFYD/wWwb4HLPEmAHNorwDkUI2VKCb+so0=; b=mkp/OA0/Oeo26OrC29Xb886+O0 WVO4rcGcMMQwMZ/y8qcDttdN4Fyac81D3yMUAb0fX3kdupIx8ueKJxm/8Kf1UGtJz2zPbPNqABOnU hdazdYXJotJVE+O2KA2IIKxhFuqhXLchF67PZz2MQJyv02YOcNo9kfMXq9nf7OSreiuE5BFp6W5lu vVP42a97Xvot+bjRs0mQRHFeNvvJAUWSizLN4zGUPhpVNvoaCtRT6JsLmzkD+XzL9aMkWL1WhBJFi FbZn/ADnRBLRYGHPKzNCkh2SmvKseqNkVttyEQC3Ewu1Tq0XnNjXzm+wci/XFb/glZdNOHuJmmTz1 I138YpDA==; 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 1fQSSQ-0008FX-Kk; Wed, 06 Jun 2018 07:02:10 +0000 Received: from smtp.codeaurora.org ([198.145.29.96]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1fQSSC-00080D-7l for linux-arm-kernel@lists.infradead.org; Wed, 06 Jun 2018 07:02:02 +0000 Received: by smtp.codeaurora.org (Postfix, from userid 1000) id DB87D60861; Wed, 6 Jun 2018 07:01:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1528268505; bh=/aHwZ/uqbLnb3M+q55cvGM7jbTc9D8hO2GSNyXFVsIA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=UoYt5gubqbnz027LmAMGAFShBf4mlYOWz6snXvTrOYRj8Q3oe/Ii/YqvaVP47E1ur GzqM/teVvLe2WXqvDrB5uUdyNmwvoMS69OXi32QLr7JFOnb3edf0TWPZ1fBmO9eAe8 npx+tDY7MeNEq3bM5PGFYXXWbDMjR8mr8cMYyiOI= Received: from cpandya-linux.qualcomm.com (blr-c-bdr-fw-01_globalnat_allzones-outside.qualcomm.com [103.229.19.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: cpandya@smtp.codeaurora.org) by smtp.codeaurora.org (Postfix) with ESMTPSA id 16417605BD; Wed, 6 Jun 2018 07:01:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1528268503; bh=/aHwZ/uqbLnb3M+q55cvGM7jbTc9D8hO2GSNyXFVsIA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=hQq7ZXhYqYUugY1BkswH6bZoVlkGRT6Bud5DEIxJKAQX+xatBB1zKHRnAXK0Yyxsi BxlN6NxTpgUQJ8lEoud/QFiuTGbQQIQe/fP4lz4x0zYesxlLTb97HxN1e4hYua9pgF liHMj3N9R0FtMbNtkoSUZBrQlb5FfxJGD1EUoWo0= DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 16417605BD Authentication-Results: pdx-caf-mail.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: pdx-caf-mail.web.codeaurora.org; spf=none smtp.mailfrom=cpandya@codeaurora.org From: Chintan Pandya To: will.deacon@arm.com, catalin.marinas@arm.com, mark.rutland@arm.com, akpm@linux-foundation.org Subject: [PATCH v13 2/3] arm64: tlbflush: Introduce __flush_tlb_kernel_pgtable Date: Wed, 6 Jun 2018 12:31:20 +0530 Message-Id: <1528268481-19299-3-git-send-email-cpandya@codeaurora.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1528268481-19299-1-git-send-email-cpandya@codeaurora.org> References: <1528268481-19299-1-git-send-email-cpandya@codeaurora.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20180606_000156_446973_115B87D4 X-CRM114-Status: UNSURE ( 9.68 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Chintan Pandya , linux-arm-kernel@lists.infradead.org, toshi.kani@hpe.com, linux-kernel@vger.kernel.org MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP Add an interface to invalidate intermediate page tables from TLB for kernel. Signed-off-by: Chintan Pandya Acked-by: Will Deacon --- arch/arm64/include/asm/tlbflush.h | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/arch/arm64/include/asm/tlbflush.h b/arch/arm64/include/asm/tlbflush.h index dfc61d7..a4a1901 100644 --- a/arch/arm64/include/asm/tlbflush.h +++ b/arch/arm64/include/asm/tlbflush.h @@ -218,6 +218,13 @@ static inline void __flush_tlb_pgtable(struct mm_struct *mm, dsb(ish); } +static inline void __flush_tlb_kernel_pgtable(unsigned long kaddr) +{ + unsigned long addr = __TLBI_VADDR(kaddr, 0); + + __tlbi(vaae1is, addr); + dsb(ish); +} #endif #endif