• B
    [POWERPC] Refactor 64 bits DMA operations · 12d04eef
    Benjamin Herrenschmidt 提交于
    This patch completely refactors DMA operations for 64 bits powerpc. 32 bits
    is untouched for now.
    
    We use the new dev_archdata structure to add the dma operations pointer
    and associated data to struct device. While at it, we also add the OF node
    pointer and numa node. In the future, we might want to look into merging
    that with pci_dn as well.
    
    The old vio, pci-iommu and pci-direct DMA ops are gone. They are now replaced
    by a set of generic iommu and direct DMA ops (non PCI specific) that can be
    used by bus types. The toplevel implementation is now inline.
    Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
    Signed-off-by: NPaul Mackerras <paulus@samba.org>
    12d04eef
dma-mapping.h 10.3 KB