iommu/core: stop converting bytes to page order back and forth
Express sizes in bytes rather than in page order, to eliminate the size->order->size conversions we have whenever the IOMMU API is calling the low level drivers' map/unmap methods. Adopt all existing drivers. Signed-off-by: NOhad Ben-Cohen <ohad@wizery.com> Cc: David Brown <davidb@codeaurora.org> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Joerg Roedel <Joerg.Roedel@amd.com> Cc: Stepan Moskovchenko <stepanm@codeaurora.org> Cc: KyongHo Cho <pullip.cho@samsung.com> Cc: Hiroshi DOYU <hdoyu@nvidia.com> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: NJoerg Roedel <joerg.roedel@amd.com>
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