[PATCH] cma: increase CMA_ALIGNMENT upper limit to 12

[Marc Carino <marc.ceeeee@gmail.com>]

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>
---
 drivers/base/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/base/Kconfig b/drivers/base/Kconfig
index 8fa8dea..0fb820c 100644
--- a/drivers/base/Kconfig
+++ b/drivers/base/Kconfig
@@ -253,7 +253,7 @@ 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
-- 
1.9.1

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