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=-10.2 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 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 4C1B5C432BE for ; Thu, 5 Aug 2021 17:06:48 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id B3A9361167 for ; Thu, 5 Aug 2021 17:06:47 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org B3A9361167 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=kvack.org Received: by kanga.kvack.org (Postfix) id 585C86B0072; Thu, 5 Aug 2021 13:06:47 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 50F078D0001; Thu, 5 Aug 2021 13:06:47 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 3D7026B0074; Thu, 5 Aug 2021 13:06:47 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0221.hostedemail.com [216.40.44.221]) by kanga.kvack.org (Postfix) with ESMTP id 1C84D6B0072 for ; Thu, 5 Aug 2021 13:06:47 -0400 (EDT) Received: from smtpin18.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay05.hostedemail.com (Postfix) with ESMTP id C32DF182D5CB9 for ; Thu, 5 Aug 2021 17:06:46 +0000 (UTC) X-FDA: 78441656412.18.8B34682 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by imf29.hostedemail.com (Postfix) with ESMTP id 74F469000247 for ; Thu, 5 Aug 2021 17:06:46 +0000 (UTC) Received: by mail.kernel.org (Postfix) with ESMTPSA id E6F9960F02; Thu, 5 Aug 2021 17:06:43 +0000 (UTC) Date: Thu, 5 Aug 2021 18:06:36 +0100 From: Catalin Marinas To: Anshuman Khandual Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, akpm@linux-foundation.org, suzuki.poulose@arm.com, mark.rutland@arm.com, will@kernel.org, maz@kernel.org, james.morse@arm.com, steven.price@arm.com Subject: Re: [RFC V2 04/10] arm64/mm: Add FEAT_LPA2 specific ID_AA64MMFR0.TGRAN[2] Message-ID: <20210805170636.GE6719@arm.com> References: <1627281445-12445-1-git-send-email-anshuman.khandual@arm.com> <1627281445-12445-5-git-send-email-anshuman.khandual@arm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1627281445-12445-5-git-send-email-anshuman.khandual@arm.com> User-Agent: Mutt/1.10.1 (2018-07-13) X-Rspamd-Server: rspam03 X-Rspamd-Queue-Id: 74F469000247 Authentication-Results: imf29.hostedemail.com; dkim=none; dmarc=fail reason="SPF not aligned (relaxed), No valid DKIM" header.from=arm.com (policy=none); spf=pass (imf29.hostedemail.com: domain of cmarinas@kernel.org designates 198.145.29.99 as permitted sender) smtp.mailfrom=cmarinas@kernel.org X-Stat-Signature: tqx4abzixn3txnnc93g8mf9igry5onwc X-HE-Tag: 1628183206-677748 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Mon, Jul 26, 2021 at 12:07:19PM +0530, Anshuman Khandual wrote: > PAGE_SIZE support is tested against possible minimum and maximum values for > its respective ID_AA64MMFR0.TGRAN field, depending on whether it is signed > or unsigned. But then FEAT_LPA2 implementation needs to be validated for 4K > and 16K page sizes via feature specific ID_AA64MMFR0.TGRAN values. Hence it > adds FEAT_LPA2 specific ID_AA64MMFR0.TGRAN[2] values per ARM ARM (0487G.A). > > Signed-off-by: Anshuman Khandual Acked-by: Catalin Marinas