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authorDavid Gibson <david@gibson.dropbear.id.au>2012-06-27 14:50:37 +1000
committerAnthony Liguori <aliguori@us.ibm.com>2012-06-27 16:33:25 -0500
commit8292f75ad2d65364387b09bb920dd65c8842a3a6 (patch)
tree04df60a5d9809e2b4f5e7796587148613d390af0 /event_notifier.h
parentfcce6fd25f3e233f9da9ef01230a668ab35bd343 (diff)
Better support for dma_addr_t variables
A while back, we introduced the dma_addr_t type, which is supposed to be used for bus visible memory addresses. At present, this is an alias for target_phys_addr_t, but this will change when we eventually add support for guest visible IOMMUs. There are some instances of target_phys_addr_t in the code now which should really be dma_addr_t, but can't be trivially converted due to missing features which this patch corrects. * We add DMA_ADDR_BITS analagous to TARGET_PHYS_ADDR_BITS. This is important where we need to make a compile-time (#if) based on the size of dma_addr_t. * We add a new helper macro to create device properties which take a dma_addr_t, currently an alias to DEFINE_PROP_TADDR(). Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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