From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753279AbbFKVV7 (ORCPT ); Thu, 11 Jun 2015 17:21:59 -0400 Received: from mga11.intel.com ([192.55.52.93]:52029 "EHLO mga11.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752340AbbFKVV4 (ORCPT ); Thu, 11 Jun 2015 17:21:56 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.13,597,1427785200"; d="scan'208";a="709467526" Subject: [-tip PATCH v4 0/6] pmem api, generic ioremap_cache, and memremap From: Dan Williams To: arnd@arndb.de, mingo@redhat.com, bp@alien8.de, hpa@zytor.com, tglx@linutronix.de, ross.zwisler@linux.intel.com, akpm@linux-foundation.org Cc: jgross@suse.com, x86@kernel.org, toshi.kani@hp.com, konrad.wilk@oracle.com, benh@kernel.crashing.org, mcgrof@suse.com, linux-nvdimm@ml01.01.org, linux-kernel@vger.kernel.org, stefan.bader@canonical.com, luto@amacapital.net, linux-mm@kvack.org, Andy Shevchenko , geert@linux-m68k.org, ralf@linux-mips.org, hmh@hmh.eng.br, mpe@ellerman.id.au, tj@kernel.org, paulus@samba.org, kbuild test robot , hch@lst.de Date: Thu, 11 Jun 2015 17:19:12 -0400 Message-ID: <20150611211354.10271.57950.stgit@dwillia2-desk3.amr.corp.intel.com> User-Agent: StGit/0.17.1-8-g92dd MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The pmem api is responsible for shepherding data out to persistent media. The pmem driver uses this api, when available, to assert that data is durable by the time bio_endio() is invoked. When an architecture or cpu can not make persistence guarantees the driver warns and falls back to "best effort" implementation. Changes since v3 [1]: Rebased on tip/master now that Toshi's ioremap_wt() patches have landed in -tip. The primary change was reflowing the patches against the newly alphabetized 'select' options under config X86. [1]: https://lists.01.org/pipermail/linux-nvdimm/2015-June/001081.html --- Dan Williams (5): arch: unify ioremap prototypes and macro aliases cleanup IORESOURCE_CACHEABLE vs ioremap() arch/*/asm/io.h: add ioremap_cache() to all architectures devm: fix ioremap_cache() usage arch: introduce memremap_cache() and memremap_wt() Ross Zwisler (1): arch, x86: pmem api for ensuring durability of persistent memory updates arch/arc/include/asm/io.h | 1 arch/arm/Kconfig | 1 arch/arm/include/asm/io.h | 2 + arch/arm/mach-clps711x/board-cdb89712.c | 2 - arch/arm64/Kconfig | 1 arch/arm64/include/asm/io.h | 3 + arch/arm64/kernel/efi.c | 4 + arch/arm64/kernel/smp_spin_table.c | 10 ++- arch/avr32/include/asm/io.h | 1 arch/cris/include/asm/io.h | 8 +- arch/cris/mm/ioremap.c | 6 +- arch/frv/Kconfig | 1 arch/frv/include/asm/io.h | 6 ++ arch/ia64/include/asm/io.h | 9 +-- arch/ia64/mm/ioremap.c | 4 + arch/m32r/include/asm/io.h | 1 arch/m68k/Kconfig | 1 arch/m68k/include/asm/io_mm.h | 7 ++ arch/m68k/include/asm/io_no.h | 5 ++ arch/metag/Kconfig | 1 arch/metag/include/asm/io.h | 5 ++ arch/microblaze/include/asm/io.h | 1 arch/mips/Kconfig | 1 arch/mips/include/asm/io.h | 17 ++++- arch/mn10300/include/asm/io.h | 1 arch/nios2/include/asm/io.h | 1 arch/powerpc/Kconfig | 1 arch/powerpc/include/asm/io.h | 2 - arch/powerpc/kernel/pci_of_scan.c | 2 - arch/s390/include/asm/io.h | 1 arch/sparc/include/asm/io_32.h | 1 arch/sparc/include/asm/io_64.h | 9 ++- arch/sparc/kernel/pci.c | 3 - arch/tile/include/asm/io.h | 1 arch/x86/Kconfig | 2 + arch/x86/include/asm/cacheflush.h | 36 +++++++++++ arch/x86/include/asm/io.h | 7 ++ arch/x86/kernel/crash_dump_64.c | 6 +- arch/x86/kernel/kdebugfs.c | 8 +- arch/x86/kernel/ksysfs.c | 28 ++++----- arch/x86/mm/ioremap.c | 10 +-- arch/xtensa/Kconfig | 1 arch/xtensa/include/asm/io.h | 3 + drivers/acpi/apei/einj.c | 8 +- drivers/acpi/apei/erst.c | 4 + drivers/block/Kconfig | 1 drivers/block/pmem.c | 76 +++++++++++++++++++++-- drivers/firmware/google/memconsole.c | 4 + drivers/pci/probe.c | 3 - drivers/pnp/manager.c | 2 - drivers/scsi/aic94xx/aic94xx_init.c | 7 -- drivers/scsi/arcmsr/arcmsr_hba.c | 5 -- drivers/scsi/mvsas/mv_init.c | 15 +---- drivers/video/fbdev/ocfb.c | 1 include/asm-generic/io.h | 8 ++ include/asm-generic/iomap.h | 4 + include/linux/compiler.h | 2 + include/linux/device.h | 5 ++ include/linux/io.h | 6 ++ include/linux/pmem.h | 102 +++++++++++++++++++++++++++++++ kernel/resource.c | 41 ++++++++++++ lib/Kconfig | 8 ++ lib/devres.c | 48 ++++++--------- lib/pci_iomap.c | 7 +- 64 files changed, 440 insertions(+), 138 deletions(-) create mode 100644 include/linux/pmem.h