From: Marc Carino <marc.ceeeee@gmail.com>
To: linux-mm@kvack.org
Cc: Marc Carino <marc.ceeeee@gmail.com>,
Marek Szyprowski <m.szyprowski@samsung.com>,
linaro-mm-sig@lists.linaro.org
Subject: [PATCH] cma: increase CMA_ALIGNMENT upper limit to 12
Date: Tue, 6 May 2014 16:23:56 -0700 [thread overview]
Message-ID: <1399418636-31114-2-git-send-email-marc.ceeeee@gmail.com> (raw)
In-Reply-To: <1399418636-31114-1-git-send-email-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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prev parent reply other threads:[~2014-05-06 23:24 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-05-06 23:23 [PATCH] cma: increase CMA_ALIGNMENT upper limit to 12 Marc Carino
2014-05-06 23:23 ` Marc Carino [this message]
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