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Uncached pool allocations are aligned to the data cache line length under the assumption that this is sufficient to prevent cache maintenance from corrupting adjacent allocations. However, the value to use in such cases is architecturally called the Cache Writeback Granule (CWG), which is essentially the maximum Dcache line length rather than the minimum. Note that this is mostly a cosmetical fix, given that the pool allocation is turned into a page allocation later, and rounded up accordingly. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>