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Date: Mon, 10 Aug 2015 23:37:50 -0400
From: Dan Williams <dan.j.williams@...el.com>
To: linux-kernel@...r.kernel.org
Cc: Toshi Kani <toshi.kani@...com>, Arnd Bergmann <arnd@...db.de>,
linux-nvdimm@...ts.01.org,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
mcgrof@...e.com, hch@....de,
Benjamin Romer <benjamin.romer@...sys.com>,
David Kershner <david.kershner@...sys.com>,
ross.zwisler@...ux.intel.com
Subject: [PATCH v4 00/10] memremap for 4.3
Changes since v3: [1]
1/ Include devm_memremap() support (Christoph)
2/ Rebase the series to defer the removal of ioremap_cache() and drop
any of the ioremap_cache()-to-memremap() conversions that have yet to be
acked by the appropriate maintainer. This avoids any potential for
bisection breakage during the 4.3 merge and the cleanup can be done for
4.4. (Christoph)
[1]: https://lists.01.org/pipermail/linux-nvdimm/2015-July/001649.html
---
While developing the pmem driver we noticed that the __iomem annotation
on the return value from ioremap_cache() was being mishandled by several
callers. We also observed that all of the call sites expected to be
able to treat the return value from ioremap_cache() as normal
(non-__iomem) pointer to memory.
See also, the LWN write up: https://lwn.net/Articles/653585/
This has passed a 0day run and will appear in libnvdimm-for-next
shortly.
---
Christoph Hellwig (2):
devres: add devm_memremap
pmem: switch to devm_ allocations
Dan Williams (8):
mm: enhance region_is_ram() to region_intersects()
arch, drivers: don't include <asm/io.h> directly, use <linux/io.h> instead
cleanup IORESOURCE_CACHEABLE vs ioremap()
arch: introduce memremap()
visorbus: switch from ioremap_cache to memremap
libnvdimm, pmem: push call to ioremap_cache out of line
pmem: switch from ioremap_wt to memremap
pmem: convert to generic memremap
arch/arm/mach-clps711x/board-cdb89712.c | 2
arch/arm/mach-shmobile/pm-rcar.c | 2
arch/ia64/include/asm/io.h | 1
arch/ia64/kernel/cyclone.c | 2
arch/powerpc/kernel/pci_of_scan.c | 2
arch/sh/include/asm/io.h | 1
arch/sparc/kernel/pci.c | 3 -
arch/x86/include/asm/io.h | 7 -
arch/x86/mm/ioremap.c | 10 ++
arch/xtensa/include/asm/io.h | 1
drivers/isdn/icn/icn.h | 2
drivers/mtd/devices/slram.c | 2
drivers/mtd/nand/diskonchip.c | 2
drivers/mtd/onenand/generic.c | 2
drivers/nvdimm/pmem.c | 36 ++----
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/scsi/sun3x_esp.c | 2
drivers/staging/comedi/drivers/ii_pci20kc.c | 1
drivers/staging/unisys/visorbus/visorchannel.c | 16 ++-
drivers/staging/unisys/visorbus/visorchipset.c | 17 ++-
drivers/tty/serial/8250/8250_core.c | 2
drivers/video/fbdev/ocfb.c | 1
drivers/video/fbdev/s1d13xxxfb.c | 3 -
drivers/video/fbdev/stifb.c | 1
include/linux/io-mapping.h | 2
include/linux/io.h | 13 ++
include/linux/mm.h | 9 +-
include/linux/mtd/map.h | 2
include/linux/pmem.h | 30 +++--
include/video/vga.h | 2
kernel/Makefile | 2
kernel/memremap.c | 138 ++++++++++++++++++++++++
kernel/resource.c | 61 ++++++-----
lib/devres.c | 13 +-
lib/pci_iomap.c | 7 -
tools/testing/nvdimm/Kbuild | 4 -
tools/testing/nvdimm/test/iomap.c | 46 ++++++--
41 files changed, 323 insertions(+), 156 deletions(-)
create mode 100644 kernel/memremap.c
--
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