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authorMarc Carino <marc.ceeeee@gmail.com>2014-06-05 03:10:01 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2014-06-05 03:54:08 +0400
commitfe54b1fd49b712cd94a1846e993a515fc9394dcb (patch)
tree89cfe6348625075bf288080eb9c072b745d46a6c /drivers/base
parent18ab4d4ced0817421e6db6940374cc39d28d65da (diff)
downloadlinux-fe54b1fd49b712cd94a1846e993a515fc9394dcb.tar.xz
cma: increase CMA_ALIGNMENT upper limit to 12
Some systems require a larger maximum PAGE_SIZE order for CMA allocations. To accommodate such systems, increase the upper-bound of the CMA_ALIGNMENT range to 12 (which ends up being 16MB on systems with 4K pages). Signed-off-by: Marc Carino <marc.ceeeee@gmail.com> Cc: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/base')
-rw-r--r--drivers/base/Kconfig2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/base/Kconfig b/drivers/base/Kconfig
index 4b7b4522b64f..23b8726962af 100644
--- a/drivers/base/Kconfig
+++ b/drivers/base/Kconfig
@@ -258,7 +258,7 @@ endchoice
config CMA_ALIGNMENT
int "Maximum PAGE_SIZE order of alignment for contiguous buffers"
- range 4 9
+ range 4 12
default 8
help
DMA mapping framework by default aligns all buffers to the smallest