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-rw-r--r--arch/arm64/Kconfig12
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index d66f9db3e6db..0df64a6a56d4 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -961,6 +961,18 @@ config ARM64_UAO
regular load/store instructions if the cpu does not implement the
feature.
+config ARM64_PMEM
+ bool "Enable support for persistent memory"
+ select ARCH_HAS_PMEM_API
+ select ARCH_HAS_UACCESS_FLUSHCACHE
+ help
+ Say Y to enable support for the persistent memory API based on the
+ ARMv8.2 DCPoP feature.
+
+ The feature is detected at runtime, and the kernel will use DC CVAC
+ operations if DC CVAP is not supported (following the behaviour of
+ DC CVAP itself if the system does not define a point of persistence).
+
endmenu
config ARM64_MODULE_CMODEL_LARGE