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* ARCv2: SLC: Handle explcit flush for DMA ops (w/o IO-coherency)Vineet Gupta2015-06-251-0/+12
| | | | | | | | | L2 cache on ARCHS processors is called SLC (System Level Cache) For working DMA (in absence of hardware assisted IO Coherency) we need to manage SLC explicitly when buffers transition between cpu and controllers. Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
* ARC: remove the unused platform helpers from dma mapping APIVineet Gupta2015-06-191-8/+4
| | | | Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
* ARC: I/O and DMA MappingsVineet Gupta2013-02-151-0/+94
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
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