iommu/io-pgtable: Introduce map_pages() as a page table op
Mapping memory into io-pgtables follows the same semantics that unmapping memory used to follow (i.e. a buffer will be mapped one page block per call to the io-pgtable code). This means that it can be optimized in the same way that unmapping memory was, so add a map_pages() callback to the io-pgtable ops structure, so that a range of pages of the same size can be mapped within the same call. Signed-off-by: NIsaac J. Manjarres <isaacm@codeaurora.org> Suggested-by: NWill Deacon <will@kernel.org> Signed-off-by: NGeorgi Djakov <quic_c_gdjako@quicinc.com> Link: https://lore.kernel.org/r/1623850736-389584-4-git-send-email-quic_c_gdjako@quicinc.comSigned-off-by: NJoerg Roedel <jroedel@suse.de>
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