From patchwork Fri May 17 19:59:56 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mark Salyzyn X-Patchwork-Id: 10948567 Return-Path: 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 48BFF14C0 for ; Fri, 17 May 2019 20:00:38 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 2D78E283F9 for ; Fri, 17 May 2019 20:00:38 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 1CE5628420; Fri, 17 May 2019 20:00:38 +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 BFB83283F9 for ; Fri, 17 May 2019 20:00:36 +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: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:In-Reply-To:References: List-Owner; bh=S7skf22O5u0bb55hOewyl4vfZTPyqkvD11ABmHmkEY0=; b=n7jq2dETcQ5icr oZLQktk+cYg/T32V2t2U+h1djq1FXWCw1kEMCttKWAroCm+iiVcUdQH0brlMGJSluYomXuthohe40 FO9hyGP0kHE6pXET+5ukkY4llMskt41341wy7ujnEgV1RFTPsG2iSHrcxsHreA5diGDgMn2G273aN SZ5dEKZ8SfnIqZ2P5R533JzehSPmNpliPnTEuCM08ja6EcmP06Xd6Lx8kH44E4vrc2F8RVKRKH9Hl dWP2aPMVTISculPO4itRpyd1c8yT4M1JaQgGTepr2lYmn6mdQMdABrszU61H4KCK84yttZZ4ahV8X YBXEFOaOvj+3xUFcl8Lg==; 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 1hRj1s-0007r3-Ra; Fri, 17 May 2019 20:00:32 +0000 Received: from mail-pg1-x544.google.com ([2607:f8b0:4864:20::544]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1hRj1o-0007qH-VY for linux-arm-kernel@lists.infradead.org; Fri, 17 May 2019 20:00:30 +0000 Received: by mail-pg1-x544.google.com with SMTP id w22so3770216pgi.6 for ; Fri, 17 May 2019 13:00:27 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=android.com; s=20161025; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=Lg0scq7ATtl+Uy4MZvq90qbS0KQJXUTHcmarZyhdZgw=; b=a4/CLRN7zdrzGXpuqcZ1iDrmfmc9ztK6BC2fcst1/mvDKJc+gPdwvVLz/qGbNTr76N vOQe7e4fiR9CSIUKPNfGC1eoYJrlj5eFtt7lHZdzNw4sacC6fB3RrAs/jcrKlL51iZXr vN57FCbyhFZO40ehms0IlL1jDfdHmofz/5X6LywNZxrupl626tUU6EAMWXqNOGFYCjQW /Rs6S84mgbAuIsUM2nl98kmaGWD0AODgKCyBhNlwWr27BPUEtzsRHLa4LQqtWFsHsqEu kGEoA+9dX8LtjxHhbbYljkkDNZ5PUmMktPw+JrsZTwZBSpcNTWoyv8ZJlYQUi0pbTryC H2lQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=Lg0scq7ATtl+Uy4MZvq90qbS0KQJXUTHcmarZyhdZgw=; b=HVmlrjQBmQsW1LRVZw5WEy/n7tBqx3iqu7jPXB7+fNlgU0i6OIMJQpO/DkvmsYqsTp fj+zh15DrqLuRc3UNEI1rGjozsVGjwyBfD1w6XGxKPJ+xmBXzQIJj6bLIztp109jgKnw k7LCUnQPBP4roaw0kICBtbexQC6CQTZXHIK0rG+yAfZxec4moeRIo720JfoCKeMjG8IX nIe0ffeJDMMQ6hfMwfk8MS4vQukIdxJ3PEZ/5H85LcZA7QXQq/MqdS+Pow2rgUnt2Edb SkDRxbewnPDBXgN7yJ1qbZ5p066GprOU9WoYzaBW+aKK37OW5xu6lVJtMvheBTn78Rzk HLkw== X-Gm-Message-State: APjAAAVpWztkVXtVmN3BVbKaaDQpkVEPKSU2jLxfdnYnLAN7nmgv14Qz SHfAQ7gw7xPIAMKGKvhsVpyycg== X-Google-Smtp-Source: APXvYqxjdaYTTQoM3b44xM6BSnFtcVQd0tiRcNbTAGEcMeI4R7/yqyItL2FOpJPIfhv4WODwmWYhqw== X-Received: by 2002:a63:6ac1:: with SMTP id f184mr59764281pgc.25.1558123226574; Fri, 17 May 2019 13:00:26 -0700 (PDT) Received: from nebulus.mtv.corp.google.com ([2620:0:1000:1612:b4fb:6752:f21f:3502]) by smtp.gmail.com with ESMTPSA id k13sm4369739pgr.90.2019.05.17.13.00.25 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 17 May 2019 13:00:25 -0700 (PDT) From: Mark Salyzyn To: linux-kernel@vger.kernel.org Subject: [PATCH] arch64: export __flush_dcache_area Date: Fri, 17 May 2019 12:59:56 -0700 Message-Id: <20190517200012.136519-1-salyzyn@android.com> X-Mailer: git-send-email 2.21.0.1020.gf2820cf01a-goog MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190517_130029_041743_CDAAD6BA X-CRM114-Status: UNSURE ( 9.70 ) 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: Catalin Marinas , kernel-team@android.com, linux-arm-kernel@lists.infradead.org, Will Deacon , Mark Salyzyn 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 Some (out of tree modular) drivers feel a need to ensure data is flushed to the DDR before continuing flow. Signed-off-by: Mark Salyzyn Cc: linux-kernel@vger.kernel.org Cc: kernel-team@android.com --- arch/arm64/mm/cache.S | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/mm/cache.S b/arch/arm64/mm/cache.S index a194fd0e837f..70d7cb5c0bd2 100644 --- a/arch/arm64/mm/cache.S +++ b/arch/arm64/mm/cache.S @@ -120,6 +120,7 @@ ENTRY(__flush_dcache_area) dcache_by_line_op civac, sy, x0, x1, x2, x3 ret ENDPIPROC(__flush_dcache_area) +EXPORT_SYMBOL_GPL(__flush_dcache_area) /* * __clean_dcache_area_pou(kaddr, size)