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 9B6DEC4338F for ; Thu, 5 Aug 2021 17:06:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 816BB6112F for ; Thu, 5 Aug 2021 17:06:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236782AbhHERHA (ORCPT ); Thu, 5 Aug 2021 13:07:00 -0400 Received: from mail.kernel.org ([198.145.29.99]:60392 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235799AbhHERHA (ORCPT ); Thu, 5 Aug 2021 13:07:00 -0400 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) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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