From: Marc Carino <marc.ceeeee@gmail.com>
Date: Wed, 4 Jun 2014 23:10:01 +0000 (-0700)
Subject: cma: increase CMA_ALIGNMENT upper limit to 12
X-Git-Tag: v3.16-rc1~47^2~16^2~126
X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=fe54b1fd49b712cd94a1846e993a515fc9394dcb;p=linux.git

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>
---

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