[PATCH v4 06/14] ARM: mcpm: support 4 clusters
Dave.Martin at arm.com
Tue Apr 29 03:21:33 PDT 2014
On Mon, Apr 28, 2014 at 02:53:44PM +0800, Haojian Zhuang wrote:
> Add the CONFIG_MCPM_QUAD_CLUSTER configuration to enlarge cluster number
> from 2 to 4.
> Signed-off-by: Haojian Zhuang <haojian.zhuang at linaro.org>
> arch/arm/Kconfig | 6 ++++++
> arch/arm/include/asm/mcpm.h | 5 +++++
> 2 files changed, 11 insertions(+)
> diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
> index 5ef96ea..58e995d 100644
> --- a/arch/arm/Kconfig
> +++ b/arch/arm/Kconfig
> @@ -1572,6 +1572,12 @@ config MCPM
> for (multi-)cluster based systems, such as big.LITTLE based
> +config MCPM_QUAD_CLUSTER
> + bool "Enable Quad clusters in MCPM"
> + depends on MCPM
> + help
> + This option enables quad clusters in MCPM.
This is fairly self-explanatory, but to make things crystal clear
you could add an explanatory note about how this option should be used,
To avoid wasting resources unnecessarily, MCPM only supports up
to 2 clusters by default.
Platforms with 3 or 4 clusters that use MCPM must select this
option to allow the additional clusters to be managed.
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