[PATCH v3 2/9] ARM: mvebu: Limit the DMA zone when LPAE is selected
Jason Cooper
jason at lakedaemon.net
Thu Apr 11 14:07:36 EDT 2013
On Tue, Apr 09, 2013 at 12:52:10AM +0200, 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 at free-electrons.com>
> ---
> arch/arm/mach-mvebu/Kconfig | 1 +
> 1 file changed, 1 insertion(+)
Applied to mvebu/soc
thx,
Jason.
More information about the linux-arm-kernel
mailing list