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 X-Spam-Level: X-Spam-Status: No, score=-8.5 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,T_DKIMWL_WL_HIGH,URIBL_BLOCKED,USER_AGENT_MUTT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E39CBC07542 for ; Mon, 27 May 2019 06:07:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B786B2075E for ; Mon, 27 May 2019 06:07:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1558937260; bh=mw+L/lLqY44mNdz/h0RDLRWC8v4KYOi5aOl1+CIT9wA=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=vX7akzKwxIw5tv5fFv/aVuwW6eAkSevRGdIZjO2EVTkSKszTtgKmuwQGnGR1XVv8J JhfTycncibf0Z2DMDT/3en24W/IAU88qwF17Y8/o0KgvUc4UqRnj93hZ2TL05u64qC imH0zrEhYIEpDp65mLo/KQujklnzquD+ulUn9UXg= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726198AbfE0GHB (ORCPT ); Mon, 27 May 2019 02:07:01 -0400 Received: from mail.kernel.org ([198.145.29.99]:36086 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725996AbfE0GHA (ORCPT ); Mon, 27 May 2019 02:07:00 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 75DBE204EC; Mon, 27 May 2019 06:06:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1558937220; bh=mw+L/lLqY44mNdz/h0RDLRWC8v4KYOi5aOl1+CIT9wA=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=RRp7RK35mra3nwfLeSnANm7jg9RuE5Xik4SIoiYMi2PYUvCZu2b5m/t7BU7kliO6J 1Vf3DetAjGyPp8/lPrqpTmOqANVXTe8co9sTQ3LnD4ptx1nAxwPAFhWJ4B3x7COQQV cR2NmSD9PKbsSn0OuiImgyLxb8g+55SRD5uDhAwM= Date: Mon, 27 May 2019 08:06:56 +0200 From: Greg Kroah-Hartman To: Shaokun Zhang Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, "Rafael J. Wysocki" , Sudeep Holla , Catalin Marinas , Jeremy Linton , Will Deacon Subject: Re: [PATCH v3 1/2] drivers: base: cacheinfo: Add variable to record max cache line size Message-ID: <20190527060656.GA7997@kroah.com> References: <1558922768-29155-1-git-send-email-zhangshaokun@hisilicon.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1558922768-29155-1-git-send-email-zhangshaokun@hisilicon.com> User-Agent: Mutt/1.12.0 (2019-05-25) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, May 27, 2019 at 10:06:07AM +0800, Shaokun Zhang wrote: > Add coherency_max_size variable to record the maximum cache line size > for different cache levels. We will synchronize it with CTR_EL0.CWG > reporting in cache_line_size() for arm64. > > Cc: Greg Kroah-Hartman > Cc: "Rafael J. Wysocki" > Cc: Sudeep Holla > Cc: Catalin Marinas > Cc: Jeremy Linton > Cc: Will Deacon > Signed-off-by: Shaokun Zhang > --- > ChangeLog since v2: > -- Rebase to 5.2-rc2 > -- Export cache_line_size for I/O driver > ChangeLog since v1: > -- Move coherency_max_size to drivers/base/cacheinfo.c > -- Address Catalin's comments > Link: https://www.spinics.net/lists/arm-kernel/msg723615.html > > drivers/base/cacheinfo.c | 5 +++++ > include/linux/cacheinfo.h | 2 ++ > 2 files changed, 7 insertions(+) > > diff --git a/drivers/base/cacheinfo.c b/drivers/base/cacheinfo.c > index a7359535caf5..8827c60f51e2 100644 > --- a/drivers/base/cacheinfo.c > +++ b/drivers/base/cacheinfo.c > @@ -213,6 +213,8 @@ int __weak cache_setup_acpi(unsigned int cpu) > return -ENOTSUPP; > } > > +unsigned int coherency_max_size; Why are you creating a global variable? Where are the other patches in this series? thanks, greg k-h