Re: [PATCH v2] powerpc/hugetlb: Fix 8M hugepages on 8xx
From: Michael Ellerman <hidden>
Date: 2020-02-19 12:40:00
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On Sun, 2020-02-09 at 16:02:41 UTC, Christophe Leroy wrote:
With HW assistance all page tables must be 4k aligned, the 8xx
drops the last 12 bits during the walk.
Redefine HUGEPD_SHIFT_MASK to mask last 12 bits out.
HUGEPD_SHIFT_MASK is used to for alignment of page table cache.
Fixes: 22569b881d37 ("powerpc/8xx: Enable 8M hugepage support with HW assistance")
Cc: stable@vger.kernel.org
Signed-off-by: Christophe Leroy <redacted>Applied to powerpc fixes, thanks. https://git.kernel.org/powerpc/c/50a175dd18de7a647e72aca7daf4744e3a5a81e3 cheers