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| author | Mitchel Humpherys <mitchelh@codeaurora.org> | 2015-04-30 09:49:29 -0700 |
|---|---|---|
| committer | David Keitel <dkeitel@codeaurora.org> | 2016-03-22 11:12:30 -0700 |
| commit | 8304e32fe88f43f1423ed950df01a4ad44f23a6f (patch) | |
| tree | f04d16ca6992747f431cb11cdc9c9fb97c54c6ed /include/linux/start_kernel.h | |
| parent | 500744e03895f3a8940eb5ac50032f565b7b9024 (diff) | |
iommu: io-pgtable-arm: unmap last level all at once
Currently we walk each last-level leaf pte during unmap and zero them
out individually. Since these last-level ptes are all contiguous (up to
512 entries), optimize the unmapping process by simply zeroing them all
out at once rather than operating on them individually.
Change-Id: I21d490e8a94355df4d4caecab33774b5f8ecf3ca
Signed-off-by: Mitchel Humpherys <mitchelh@codeaurora.org>
Diffstat (limited to 'include/linux/start_kernel.h')
0 files changed, 0 insertions, 0 deletions