diff options
| author |   Christophe Leroy <christophe.leroy@c-s.fr> | 2020-02-09 16:02:41 +0000 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2020-02-17 12:47:06 +1100 |
| commit | 50a175dd18de7a647e72aca7daf4744e3a5a81e3 (patch) | |
| tree | 2d95af586f02d88542652bf96646a639511dccda /arch/powerpc/kernel/head_8xx.S | |
| parent | powerpc/hugetlb: Fix 512k hugepages on 8xx with 16k page size (diff) | |
| download | linux-dev-50a175dd18de7a647e72aca7daf4744e3a5a81e3.tar.xz linux-dev-50a175dd18de7a647e72aca7daf4744e3a5a81e3.zip | |
powerpc/hugetlb: Fix 8M hugepages on 8xx
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 # v5.0+
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/778b1a248c4c7ca79640eeff7740044da6a220a0.1581264115.git.christophe.leroy@c-s.fr
Diffstat (limited to '')
0 files changed, 0 insertions, 0 deletions