From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-ob0-f172.google.com (mail-ob0-f172.google.com [209.85.214.172]) by kanga.kvack.org (Postfix) with ESMTP id B1A0C6B006E for ; Thu, 15 Jan 2015 12:44:52 -0500 (EST) Received: by mail-ob0-f172.google.com with SMTP id va8so14773753obc.3 for ; Thu, 15 Jan 2015 09:44:52 -0800 (PST) Received: from g2t2353.austin.hp.com (g2t2353.austin.hp.com. [15.217.128.52]) by mx.google.com with ESMTPS id os17si366008oeb.32.2015.01.15.09.44.50 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 15 Jan 2015 09:44:51 -0800 (PST) Message-ID: <1421342920.2493.8.camel@misato.fc.hp.com> Subject: Re: [PATCH v7 0/7] Support Write-Through mapping on x86 From: Toshi Kani Date: Thu, 15 Jan 2015 10:28:40 -0700 In-Reply-To: <1420577392-21235-1-git-send-email-toshi.kani@hp.com> References: <1420577392-21235-1-git-send-email-toshi.kani@hp.com> Content-Type: text/plain; charset="UTF-8" Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: hpa@zytor.com Cc: tglx@linutronix.de, mingo@redhat.com, akpm@linux-foundation.org, arnd@arndb.de, linux-mm@kvack.org, linux-kernel@vger.kernel.org, jgross@suse.com, stefan.bader@canonical.com, luto@amacapital.net, hmh@hmh.eng.br, yigal@plexistor.com, konrad.wilk@oracle.com, Elliott@hp.com Hi Ingo, Peter, Thomas, Is there anything else I need to do for accepting this patchset? Thanks, -Toshi On Tue, 2015-01-06 at 13:49 -0700, Toshi Kani wrote: > This patchset adds support of Write-Through (WT) mapping on x86. > The study below shows that using WT mapping may be useful for > non-volatile memory. > > http://www.hpl.hp.com/techreports/2012/HPL-2012-236.pdf > > All new/modified interfaces have been tested. > > v7: > - Rebased to 3.19-rc3 as Juergen's patchset for the PAT management > has been accepted. > > v6: > - Dropped the patch moving [set|get]_page_memtype() to pat.c > since the tip branch already has this change. > - Fixed an issue when CONFIG_X86_PAT is not defined. > > v5: > - Clarified comment of why using slot 7. (Andy Lutomirski, > Thomas Gleixner) > - Moved [set|get]_page_memtype() to pat.c. (Thomas Gleixner) > - Removed BUG() from set_page_memtype(). (Thomas Gleixner) > > v4: > - Added set_memory_wt() by adding WT support of regular memory. > > v3: > - Dropped the set_memory_wt() patch. (Andy Lutomirski) > - Refactored the !pat_enabled handling. (H. Peter Anvin, > Andy Lutomirski) > - Added the picture of PTE encoding. (Konrad Rzeszutek Wilk) > > v2: > - Changed WT to use slot 7 of the PAT MSR. (H. Peter Anvin, > Andy Lutomirski) > - Changed to have conservative checks to exclude all Pentium 2, 3, > M, and 4 families. (Ingo Molnar, Henrique de Moraes Holschuh, > Andy Lutomirski) > - Updated documentation to cover WT interfaces and usages. > (Andy Lutomirski, Yigal Korman) > > --- > Toshi Kani (7): > 1/7 x86, mm, pat: Set WT to PA7 slot of PAT MSR > 2/7 x86, mm, pat: Change reserve_memtype() to handle WT > 3/7 x86, mm, asm-gen: Add ioremap_wt() for WT > 4/7 x86, mm, pat: Add pgprot_writethrough() for WT > 5/7 x86, mm, pat: Refactor !pat_enable handling > 6/7 x86, mm, asm: Add WT support to set_page_memtype() > 7/7 x86, mm: Add set_memory_wt() for WT > > --- > Documentation/x86/pat.txt | 13 ++- > arch/x86/include/asm/cacheflush.h | 6 +- > arch/x86/include/asm/io.h | 2 + > arch/x86/include/asm/pgtable_types.h | 3 + > arch/x86/mm/init.c | 6 +- > arch/x86/mm/iomap_32.c | 12 +-- > arch/x86/mm/ioremap.c | 26 ++++- > arch/x86/mm/pageattr.c | 61 ++++++++++-- > arch/x86/mm/pat.c | 184 ++++++++++++++++++++++++----------- > include/asm-generic/io.h | 9 ++ > include/asm-generic/iomap.h | 4 + > include/asm-generic/pgtable.h | 4 + > 12 files changed, 244 insertions(+), 86 deletions(-) > > -- > To unsubscribe, send a message with 'unsubscribe linux-mm' in > the body to majordomo@kvack.org. For more info on Linux MM, > see: http://www.linux-mm.org/ . > Don't email: email@kvack.org -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org