redonkable
/
alistair23-linux
1
0
Fork 0
Code Releases Activity

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>
hifive-unleashed-5.1
Marc Carino 2014-06-04 16:10:01 -07:00 committed by Linus Torvalds
parent 18ab4d4ced
commit fe54b1fd49
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/base/Kconfig
View File

@ -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