Ross Zwisler 3f4a2670de pmem: add wb_cache_pmem() to the PMEM API ...

__arch_wb_cache_pmem() was already an internal implementation detail of
the x86 PMEM API, but this functionality needs to be exported as part of
the general PMEM API to handle the fsync/msync case for DAX mmaps.

One thing worth noting is that we really do want this to be part of the
PMEM API as opposed to a stand-alone function like clflush_cache_range()
because of ordering restrictions.  By having wb_cache_pmem() as part of
the PMEM API we can leave it unordered, call it multiple times to write
back large amounts of memory, and then order the multiple calls with a
single wmb_pmem().

Signed-off-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: "J. Bruce Fields" <bfields@fieldses.org>
Cc: "Theodore Ts'o" <tytso@mit.edu>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Andreas Dilger <adilger.kernel@dilger.ca>
Cc: Dave Chinner <david@fromorbit.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jan Kara <jack@suse.com>
Cc: Jeff Layton <jlayton@poochiereds.net>
Cc: Matthew Wilcox <willy@linux.intel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Matthew Wilcox <matthew.r.wilcox@intel.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2016-01-22 17:02:18 -08:00

..

alpha

dma-mapping: always provide the dma_map_ops based implementation

2016-01-20 17:09:18 -08:00

arc

dma-mapping: always provide the dma_map_ops based implementation

2016-01-20 17:09:18 -08:00

arm

Merge branch 'akpm' (patches from Andrew)

2016-01-21 12:32:08 -08:00

arm64

Merge branch 'akpm' (patches from Andrew)

2016-01-21 12:32:08 -08:00

avr32

dma-mapping: always provide the dma_map_ops based implementation

2016-01-20 17:09:18 -08:00

blackfin

dma-mapping: always provide the dma_map_ops based implementation

2016-01-20 17:09:18 -08:00

c6x

dma-mapping: always provide the dma_map_ops based implementation

2016-01-20 17:09:18 -08:00

cris

Merge branch 'akpm' (patches from Andrew)

2016-01-21 12:32:08 -08:00

frv

dma-mapping: always provide the dma_map_ops based implementation

2016-01-20 17:09:18 -08:00

h8300

Merge branch 'akpm' (patches from Andrew)

2016-01-21 12:32:08 -08:00

hexagon

dma-mapping: always provide the dma_map_ops based implementation

2016-01-20 17:09:18 -08:00

ia64

dma-mapping: always provide the dma_map_ops based implementation

2016-01-20 17:09:18 -08:00

m32r

m32r: fix m32104ut_defconfig build fail

2016-01-14 16:00:49 -08:00

m68k

dma-mapping: always provide the dma_map_ops based implementation

2016-01-20 17:09:18 -08:00

metag

dma-mapping: always provide the dma_map_ops based implementation

2016-01-20 17:09:18 -08:00

microblaze

dma-mapping: always provide the dma_map_ops based implementation

2016-01-20 17:09:18 -08:00

mips

dma-mapping: always provide the dma_map_ops based implementation

2016-01-20 17:09:18 -08:00

mn10300

dma-mapping: always provide the dma_map_ops based implementation

2016-01-20 17:09:18 -08:00

nios2

dma-mapping: always provide the dma_map_ops based implementation

2016-01-20 17:09:18 -08:00

openrisc

dma-mapping: always provide the dma_map_ops based implementation

2016-01-20 17:09:18 -08:00

parisc

dma-mapping: always provide the dma_map_ops based implementation

2016-01-20 17:09:18 -08:00

powerpc

Merge branch 'akpm' (patches from Andrew)

2016-01-21 12:32:08 -08:00

s390

dma-mapping: always provide the dma_map_ops based implementation

2016-01-20 17:09:18 -08:00

score

…

sh

dma-mapping: always provide the dma_map_ops based implementation

2016-01-20 17:09:18 -08:00

sparc

dma-mapping: always provide the dma_map_ops based implementation

2016-01-20 17:09:18 -08:00

tile

dma-mapping: always provide the dma_map_ops based implementation

2016-01-20 17:09:18 -08:00

um

um: kill pfn_t

2016-01-15 17:56:32 -08:00

unicore32

dma-mapping: always provide the dma_map_ops based implementation

2016-01-20 17:09:18 -08:00

x86

pmem: add wb_cache_pmem() to the PMEM API

2016-01-22 17:02:18 -08:00

xtensa

dma-mapping: remove <asm-generic/dma-coherent.h>

2016-01-20 17:09:18 -08:00

.gitignore

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Kconfig

dma-mapping: always provide the dma_map_ops based implementation

2016-01-20 17:09:18 -08:00