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authorKrishna Reddy <vdumpa@nvidia.com>2012-03-06 19:09:46 -0800
committerDan Willemsen <dwillemsen@nvidia.com>2013-09-14 01:32:28 -0700
commit302b48ac87bbc6ef508d67527180f648feb2a4bc (patch)
tree540b0a6c315e76c70e900d3eee625220baab7150
parent371d69bf5ae7305e58e60e452c4491d131b45d93 (diff)
ARM: mm: Add config flag for CPA.
Change-Id: Ibaa40012b3954abb440882517de51ab37269942f Signed-off-by: Krishna Reddy <vdumpa@nvidia.com> Reviewed-on: http://git-master/r/88183 Reviewed-by: Scott Williams <scwilliams@nvidia.com> Reviewed-by: Hiroshi Doyu <hdoyu@nvidia.com> Rebase-Id: R4594c741e8680729f658c18a1ae1f5a31967d8c0
-rw-r--r--arch/arm/mm/Kconfig8
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig
index ba4bc134bda3..111152e913a1 100644
--- a/arch/arm/mm/Kconfig
+++ b/arch/arm/mm/Kconfig
@@ -939,3 +939,11 @@ config ARM_SAVE_DEBUG_CONTEXT
help
This option enables save/restore of the ARM debug registers
across CPU powerdown.
+
+config CPA
+ bool "Change Page Attributes"
+ depends on CPU_V7
+ help
+ This option enables Changing Page Attibutes for low memory.
+ This is needed to avoid conflicting memory mappings for low memory,
+ One from kernel page table and others from user process page tables.