[PATCH v2] arm: make FORCE_MAX_ZONEORDER configurable for TI AM33XX
yegor_sub1 at visionsystems.de
Tue Sep 25 04:46:34 EDT 2012
On 25.09.2012 10:32, Russell King - ARM Linux wrote:
> On Tue, Sep 25, 2012 at 10:26:30AM +0200, yegorslists at googlemail.com wrote:
>> From: Yegor Yefremov <yegorslists at googlemail.com>
>> FORCE_MAX_ZONEORDER of 12 is needed to allocation more than 4MB
>> of consistent DMA memory (da8xx frame buffer driver).
> Okay, so the patch description says "This needs to be 12 on this platform".
>> config FORCE_MAX_ZONEORDER
>> - int "Maximum zone order" if ARCH_SHMOBILE
>> - range 11 64 if ARCH_SHMOBILE
>> + int "Maximum zone order" if ARCH_SHMOBILE || SOC_AM33XX
>> + range 11 64 if ARCH_SHMOBILE || SOC_AM33XX
> but you leave it up to the user to select something that may not be
> suitable. Wouldn't _just_ adding:
> default "12" if SOC_AM33XX
> after the "range", and making no other changes be good enough and match
> what the patch description says?
You're right. As we don't allocate anything, but increase the possible size, it shouldn't break anything. Tony is it O.K. with you?
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