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 16:23:55 -0700 [thread overview]
Message-ID: <1399418636-31114-1-git-send-email-marc.ceeeee@gmail.com> (raw)
Certain platforms contain peripherals which have contiguous
memory alignment requirements, necessitating the use of the alignment
argument when obtaining CMA memory. The current default maximum
CMA_ALIGNMENT of order 9 translates into a 1MB alignment on systems
with a 4K page size. To accommodate systems with peripherals with even
larger alignment requirements, increase the upper-bound of
CMA_ALIGNMENT from order 9 to order 12.
Marc Carino (1):
cma: increase CMA_ALIGNMENT upper limit to 12
drivers/base/Kconfig | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--
1.9.1
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next 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 Marc Carino [this message]
2014-05-06 23:23 ` [PATCH] cma: increase CMA_ALIGNMENT upper limit to 12 Marc Carino
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