[PATCH v5 06/14] ARM: mcpm: support 4 clusters
nicolas.pitre at linaro.org
Wed May 7 09:59:00 PDT 2014
On Wed, 7 May 2014, 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 | 9 +++++++++
> arch/arm/include/asm/mcpm.h | 5 +++++
> 2 files changed, 14 insertions(+)
> diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
> index 0e52a2c..624829f 100644
> --- a/arch/arm/Kconfig
> +++ b/arch/arm/Kconfig
> @@ -1575,6 +1575,15 @@ config MCPM
> for (multi-)cluster based systems, such as big.LITTLE based
> +config MCPM_QUAD_CLUSTER
> + bool "Enable Quad clusters in MCPM"
Please remove the prompt string, keeping only the bool alone. This
config option shouldn't be visible to users. After that you may add:
Reviewed-by: Nicolas Pitre <nico at linaro.org>
> + depends on MCPM
> + help
> + 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.
> config BIG_LITTLE
> bool "big.LITTLE support (Experimental)"
> depends on CPU_V7 && SMP
> diff --git a/arch/arm/include/asm/mcpm.h b/arch/arm/include/asm/mcpm.h
> index 608516e..fc8d70d 100644
> --- a/arch/arm/include/asm/mcpm.h
> +++ b/arch/arm/include/asm/mcpm.h
> @@ -20,7 +20,12 @@
> * to consider dynamic allocation.
> #define MAX_CPUS_PER_CLUSTER 4
> +#ifdef CONFIG_MCPM_QUAD_CLUSTER
> +#define MAX_NR_CLUSTERS 4
> #define MAX_NR_CLUSTERS 2
> #ifndef __ASSEMBLY__
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