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2009-10-27sh: Revamp PCI DMA coherence Kconfig bits.Paul Mundt1-0/+4
Leaving this configurable caused more trouble than it was ever worth, so just make it explicit. Boards that are verified one way or the other can fix up their selects accordingly. We presently default to non-coherent for most platforms. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-10-26sh: Add dma-mapping support for dma_alloc/free_coherent() overrides.Paul Mundt1-0/+2
This moves the current dma_alloc/free_coherent() calls to a generic variant and plugs them in for the nommu default. Other variants can override the defaults in the dma mapping ops directly. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-10-20sh: Convert to asm-generic/dma-mapping-common.hPaul Mundt1-0/+76
This converts the old DMA mapping support to the new generic dma-mapping-common.h abstraction. Signed-off-by: Paul Mundt <lethal@linux-sh.org>