From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752549AbeEKGsq (ORCPT ); Fri, 11 May 2018 02:48:46 -0400 Received: from ozlabs.org ([203.11.71.1]:36173 "EHLO ozlabs.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752306AbeEKGsn (ORCPT ); Fri, 11 May 2018 02:48:43 -0400 Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=ellerman.id.au From: Michael Ellerman To: Christophe Leroy , Benjamin Herrenschmidt , Paul Mackerras , aneesh.kumar@linux.vnet.ibm.com Cc: linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org Subject: Re: [PATCH 00/17] Implement use of HW assistance on TLB table walk on 8xx In-Reply-To: References: Date: Fri, 11 May 2018 16:48:41 +1000 Message-ID: <87sh6yr8l2.fsf@concordia.ellerman.id.au> MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Christophe Leroy writes: > The purpose of this serie is to implement hardware assistance for TLB table walk > on the 8xx. > > First part is to make L1 entries and L2 entries independant. > For that, we need to alter ioremap functions in order to handle GUARD attribute > at the PGD/PMD level. > > Last part is to try and reuse PTE fragment implemented on PPC64 in order to > not waste 16k Pages for page tables as only 4k are used. For the time being, > it doesn't work, but I include it in the serie anyway in order to get feedback. > > Tested successfully on 8xx up to the one before the last. > > Didn't have time to do compilation test on other configs, I send it anyway > before leaving for one week vacation in order to get feedback. I replied to a few patches, here's some other build errors: arch/powerpc/mm/ioremap.c:135:15: error: '_PAGE_GUARDED' undeclared (first use in this function): pseries_defconfig/powerpc arch/powerpc/include/asm/book3s/32/pgtable.h:53:19: error: 'PKMAP_BASE' undeclared (first use in this function): pmac32_defconfig/powerpc-5.3 include/linux/mm.h:533:41: error: 'PKMAP_BASE' undeclared (first use in this function): pmac32_defconfig/powerpc ERROR: "ioremap_bot" [net/netfilter/nf_conntrack.ko] undefined!: linkstation_defconfig/powerpc ERROR: "ioremap_bot" [fs/xfs/xfs.ko] undefined!: linkstation_defconfig/powerpc arch/powerpc/include/asm/nohash/32/pgtable.h:80:20: error: 'PKMAP_BASE' undeclared (first use in this function): corenet32_smp_defconfig/powerpc-5.3 arch/powerpc/include/asm/nohash/32/pgalloc.h:64:43: error: '_PMD_GUARDED' undeclared (first use in this function): ppc40x_defconfig/powerpc-5.3 ERROR: "ioremap_bot" [net/packet/af_packet.ko] undefined!: storcenter_defconfig/powerpc ERROR: "ioremap_bot" [drivers/usb/core/usbcore.ko] undefined!: ppc44x_defconfig/powerpc cheers