27 Jun
2012
27 Jun
'12
2:20 a.m.
On 06/26/2012 07:46 PM, Mark Zhang wrote:
On Tue, 26 Jun 2012 12:55:13 +0200 Thierry Reding thierry.reding@avionic-design.de wrote:
...
I'm not sure I understand how information about the carveout would be obtained from the IOMMU API, though.
I think that can be similar with current gart implementation. Define carveout as:
carveout { compatible = "nvidia,tegra20-carveout"; size = <0x10000000>; };
Then create a file such like "tegra-carveout.c" to get these definitions and register itself as platform device's iommu instance.
The carveout isn't a HW object, so it doesn't seem appropriate to define a DT node to represent it.