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| author |   Anshuman Khandual <anshuman.khandual@arm.com> | 2019-03-05 15:43:55 -0800 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2019-03-05 21:07:15 -0800 |
| commit | 4a03a058d1fe7558faffab1a831dde508501e85c (patch) | |
| tree | 9c60ebe751499c5484c1de91778682bcf590cb26 /arch/arm64 | |
| parent | mm/hugetlb: enable arch specific huge page size support for migration (diff) | |
| download | linux-dev-4a03a058d1fe7558faffab1a831dde508501e85c.tar.xz linux-dev-4a03a058d1fe7558faffab1a831dde508501e85c.zip | |
arm64/mm: enable HugeTLB migration
Let arm64 subscribe to generic HugeTLB page migration framework. Right
now this only works on the following PMD and PUD level HugeTLB page
sizes with various kernel base page size combinations.
CONT PTE PMD CONT PMD PUD
-------- --- -------- ---
4K: NA 2M NA 1G
16K: NA 32M NA
64K: NA 512M NA
Link: http://lkml.kernel.org/r/1545121450-1663-5-git-send-email-anshuman.khandual@arm.com
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
Reviewed-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Reviewed-by: Steve Capper <steve.capper@arm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Michal Hocko <mhocko@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/arm64')
| -rw-r--r-- | arch/arm64/Kconfig | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index a4168d366127..cfbf307d6dc4 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -1467,6 +1467,10 @@ config SYSVIPC_COMPAT def_bool y depends on COMPAT && SYSVIPC +config ARCH_ENABLE_HUGEPAGE_MIGRATION + def_bool y + depends on HUGETLB_PAGE && MIGRATION + menu "Power management options" source "kernel/power/Kconfig" |