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=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 EB3B9C34047 for ; Wed, 19 Feb 2020 12:40:00 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id CB5DC24654 for ; Wed, 19 Feb 2020 12:40:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727799AbgBSMj7 (ORCPT ); Wed, 19 Feb 2020 07:39:59 -0500 Received: from bilbo.ozlabs.org ([203.11.71.1]:51195 "EHLO ozlabs.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727697AbgBSMj4 (ORCPT ); Wed, 19 Feb 2020 07:39:56 -0500 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 Cc: linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org 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) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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