Re: [PATCH v2 1/9] arm: mvebu: Limit the DMA zone when LPAE is selected

From: Arnd Bergmann
Date: Fri Apr 05 2013 - 16:42:10 EST


On Friday 05 April 2013, Gregory CLEMENT wrote:
> When LPAE is activated on Armada XP, all registers and IOs are still
> 32bit, the 40bit extension is on the CPU to DRAM path (windows) only.
> That means that all the DMA transfer are restricted to the low 32 bits
> address space. This is limitation is achieved by selecting ZONE_DMA.
>
> Signed-off-by: Gregory CLEMENT <gregory.clement@xxxxxxxxxxxxxxxxxx>


Shouldn't that be ZONE_DMA32?

Arnd
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