Stefano Stabellini d6fe76c58c xen: introduce xen_alloc/free_coherent_pages ... xen_swiotlb_alloc_coherent needs to allocate a coherent buffer for cpu and devices. On native x86 is sufficient to call __get_free_pages in order to get a coherent buffer, while on ARM (and potentially ARM64) we need to call the native dma_ops->alloc implementation. Introduce xen_alloc_coherent_pages to abstract the arch specific buffer allocation. Similarly introduce xen_free_coherent_pages to free a coherent buffer: on x86 is simply a call to free_pages while on ARM and ARM64 is arm_dma_ops.free. Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Changes in v7: - rename __get_dma_ops to __generic_dma_ops; - call __generic_dma_ops(hwdev)->alloc/free on arm64 too. Changes in v6: - call __get_dma_ops to get the native dma_ops pointer on arm.		2013-10-09 17:18:14 +00:00
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asm	xen: introduce xen_alloc/free_coherent_pages	2013-10-09 17:18:14 +00:00
uapi/asm	net: rename busy poll socket op and globals	2013-07-10 17:08:27 -07:00