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=-8.7 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED autolearn=unavailable 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 4E2A4C34047 for ; Wed, 19 Feb 2020 12:50:35 +0000 (UTC) Received: from lists.ozlabs.org (lists.ozlabs.org [203.11.71.2]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 0871F24654 for ; Wed, 19 Feb 2020 12:50:34 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 0871F24654 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=ellerman.id.au Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 48MyHr4h9XzDqTW for ; Wed, 19 Feb 2020 23:50:32 +1100 (AEDT) Received: from ozlabs.org (bilbo.ozlabs.org [IPv6:2401:3900:2:1::2]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 48My3b5D4szDq5n for ; Wed, 19 Feb 2020 23:39:55 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=ellerman.id.au Received: by ozlabs.org (Postfix, from userid 1034) id 48My3Z3flnz9sSP; Wed, 19 Feb 2020 23:39:53 +1100 (AEDT) X-powerpc-patch-notification: thanks X-powerpc-patch-commit: 50a175dd18de7a647e72aca7daf4744e3a5a81e3 In-Reply-To: <778b1a248c4c7ca79640eeff7740044da6a220a0.1581264115.git.christophe.leroy@c-s.fr> To: Christophe Leroy , Benjamin Herrenschmidt , Paul Mackerras , aneesh.kumar@linux.ibm.com From: Michael Ellerman Subject: Re: [PATCH v2] powerpc/hugetlb: Fix 8M hugepages on 8xx Message-Id: <48My3Z3flnz9sSP@ozlabs.org> Date: Wed, 19 Feb 2020 23:39:53 +1100 (AEDT) X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" On Sun, 2020-02-09 at 16:02:41 UTC, Christophe Leroy wrote: > With HW assistance all page tables must be 4k aligned, the 8xx > drops the last 12 bits during the walk. > > Redefine HUGEPD_SHIFT_MASK to mask last 12 bits out. > HUGEPD_SHIFT_MASK is used to for alignment of page table cache. > > Fixes: 22569b881d37 ("powerpc/8xx: Enable 8M hugepage support with HW assistance") > Cc: stable@vger.kernel.org > Signed-off-by: Christophe Leroy Applied to powerpc fixes, thanks. https://git.kernel.org/powerpc/c/50a175dd18de7a647e72aca7daf4744e3a5a81e3 cheers