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Commit ebf4a5c5 authored by Haojian Zhuang's avatar Haojian Zhuang Committed by Wei Xu
Browse files

ARM: mcpm: support 4 clusters 



Add the CONFIG_MCPM_QUAD_CLUSTER configuration to enlarge cluster number
from 2 to 4.

Signed-off-by: default avatarHaojian Zhuang <haojian.zhuang@linaro.org>
Reviewed-by: default avatarNicolas Pitre <nico@linaro.org>
Signed-off-by: default avatarWei Xu <xuwei5@hisilicon.com>
parent 7d1311b9

arch/arm/Kconfig

+9 −0
Original line number Diff line number Diff line
@@ -1405,6 +1405,15 @@ config MCPM 
	  for (multi-)cluster based systems, such as big.LITTLE based

	  systems.



config MCPM_QUAD_CLUSTER

	bool

	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

arch/arm/include/asm/mcpm.h

+5 −0
Original line number Diff line number Diff line
@@ -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__