linux-stable/drivers/base
Marek Szyprowski c64be2bb1c drivers: add Contiguous Memory Allocator
The Contiguous Memory Allocator is a set of helper functions for DMA
mapping framework that improves allocations of contiguous memory chunks.

CMA grabs memory on system boot, marks it with MIGRATE_CMA migrate type
and gives back to the system. Kernel is allowed to allocate only movable
pages within CMA's managed memory so that it can be used for example for
page cache when DMA mapping do not use it. On
dma_alloc_from_contiguous() request such pages are migrated out of CMA
area to free required contiguous block and fulfill the request. This
allows to allocate large contiguous chunks of memory at any time
assuming that there is enough free memory available in the system.

This code is heavily based on earlier works by Michal Nazarewicz.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Michal Nazarewicz <mina86@mina86.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Tested-by: Rob Clark <rob.clark@linaro.org>
Tested-by: Ohad Ben-Cohen <ohad@wizery.com>
Tested-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>
Tested-by: Robert Nelson <robertcnelson@gmail.com>
Tested-by: Barry Song <Baohua.Song@csr.com>
2012-05-21 15:09:37 +02:00
..
power PM / Runtime: don't forget to wake up waitqueue on failure 2012-03-26 22:46:52 +02:00
regmap regmap: fix possible memory corruption in regmap_bulk_read() 2012-05-09 15:44:11 +01:00
attribute_container.c
base.h driver core: move the deferred probe pointer into the private area 2012-03-08 12:17:22 -08:00
bus.c Merge 3.3-rc2 into the driver-core-next branch. 2012-02-02 11:24:44 -08:00
class.c
core.c Core device tree changes for Linux v3.4 2012-03-21 10:30:03 -07:00
cpu.c Merge 3.3-rc6 into driver-core-next 2012-03-09 12:35:53 -08:00
dd.c driver core: minor comment formatting cleanups 2012-03-08 12:20:37 -08:00
devres.c
devtmpfs.c Merge branch 'for-linus2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2012-01-08 12:19:57 -08:00
dma-buf.c dma-buf: add support for kernel cpu access 2012-03-26 11:33:02 +05:30
dma-coherent.c
dma-contiguous.c drivers: add Contiguous Memory Allocator 2012-05-21 15:09:37 +02:00
dma-mapping.c
driver.c Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2012-03-21 18:55:10 -07:00
firmware_class.c firmware_class: Move request_firmware_nowait() to workqueues 2012-03-28 23:31:00 +02:00
firmware.c
hypervisor.c
init.c
isa.c
Kconfig drivers: add Contiguous Memory Allocator 2012-05-21 15:09:37 +02:00
Makefile drivers: add Contiguous Memory Allocator 2012-05-21 15:09:37 +02:00
map.c
memory.c Linux 3.3-rc7 2012-03-14 07:44:11 +01:00
module.c
node.c drivers/base/memory.c: fix memory_dev_init() long delay 2012-02-02 15:50:05 -08:00
platform.c drivercore: Output common devicetree information in uevent 2012-02-01 14:26:30 -07:00
soc.c drivers/base: fix compiler warning in SoC export driver - idr should be ida 2012-04-09 14:54:22 -07:00
syscore.c
topology.c
transport_class.c