diff mbox series

[V3,4/5] arm64/mm: Enable HugeTLB migration

Message ID 1540299721-26484-5-git-send-email-anshuman.khandual@arm.com (mailing list archive)
State New, archived
Headers show
Series arm64/mm: Enable HugeTLB migration | expand

Commit Message

Anshuman Khandual Oct. 23, 2018, 1:02 p.m. UTC
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

Reviewed-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
---
 arch/arm64/Kconfig | 4 ++++
 1 file changed, 4 insertions(+)

Comments

Steve Capper Nov. 8, 2018, 10:35 a.m. UTC | #1
On Tue, Oct 23, 2018 at 06:32:00PM +0530, Anshuman Khandual wrote:
> 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
> 
> Reviewed-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
> Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>


Reviewed-by: Steve Capper <steve.capper@arm.com>

> ---
>  arch/arm64/Kconfig | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
> index a8ae30f..4b3e269 100644
> --- a/arch/arm64/Kconfig
> +++ b/arch/arm64/Kconfig
> @@ -1331,6 +1331,10 @@ 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"
> -- 
> 2.7.4
>
diff mbox series

Patch

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index a8ae30f..4b3e269 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -1331,6 +1331,10 @@  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"