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-rw-r--r--arch/arm/Kconfig9
-rw-r--r--arch/arm/include/asm/mcpm.h5
2 files changed, 14 insertions, 0 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index c49a775..e43221a 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -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
diff --git a/arch/arm/include/asm/mcpm.h b/arch/arm/include/asm/mcpm.h
index 57ff7f2..d428e38 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__
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