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authorJuri Lelli <juri.lelli@arm.com>2017-05-31 17:59:28 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-06-03 19:10:09 +0900
commit2ef7a2953c81ee6b341e3ffb33570adc894cf4a5 (patch)
tree98723c186755eed6b067867f0dd80eba352c544e /drivers/base/Kconfig
parentf70b281b59a871545362a494d99a644153fbbaac (diff)
downloadlinux-2ef7a2953c81ee6b341e3ffb33570adc894cf4a5.tar.bz2
arm, arm64: factorize common cpu capacity default code
arm and arm64 share lot of code relative to parsing CPU capacity information from DT, using that information for appropriate scaling and exposing a sysfs interface for chaging such values at runtime. Factorize such code in a common place (driver/base/arch_topology.c) in preparation for further additions. Suggested-by: Will Deacon <will.deacon@arm.com> Suggested-by: Mark Rutland <mark.rutland@arm.com> Suggested-by: Catalin Marinas <catalin.marinas@arm.com> Cc: Russell King <linux@armlinux.org.uk> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Juri Lelli <juri.lelli@arm.com> Acked-by: Russell King <rmk+kernel@armlinux.org.uk> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/base/Kconfig')
-rw-r--r--drivers/base/Kconfig8
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/base/Kconfig b/drivers/base/Kconfig
index d718ae4b907a..f046d21de57d 100644
--- a/drivers/base/Kconfig
+++ b/drivers/base/Kconfig
@@ -339,4 +339,12 @@ config CMA_ALIGNMENT
endif
+config GENERIC_ARCH_TOPOLOGY
+ bool
+ help
+ Enable support for architectures common topology code: e.g., parsing
+ CPU capacity information from DT, usage of such information for
+ appropriate scaling, sysfs interface for changing capacity values at
+ runtime.
+
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