Re: [PATCH v3 2/9] ARM: mvebu: Limit the DMA zone when LPAE is selected

2013-04-11 Thread Jason Cooper
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.

Re: [PATCH v3 2/9] ARM: mvebu: Limit the DMA zone when LPAE is selected

2013-04-11 Thread Jason Cooper
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

[PATCH v3 2/9] ARM: mvebu: Limit the DMA zone when LPAE is selected

2013-04-08 Thread Gregory CLEMENT
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:

[PATCH v3 2/9] ARM: mvebu: Limit the DMA zone when LPAE is selected

2013-04-08 Thread Gregory CLEMENT
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: