[PATCH v5 06/14] ARM: mcpm: support 4 clusters
From: Nicolas Pitre <hidden>
Date: 2014-05-07 16:59:00
On Wed, 7 May 2014, Haojian Zhuang wrote:
quoted hunk ↗ jump to hunk
Add the CONFIG_MCPM_QUAD_CLUSTER configuration to enlarge cluster number from 2 to 4. Signed-off-by: Haojian Zhuang <haojian.zhuang@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 systems. +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 <redacted>
quoted hunk ↗ jump to hunk
+ 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 && SMPdiff --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 +#else #define MAX_NR_CLUSTERS 2 +#endif #ifndef __ASSEMBLY__-- 1.9.1