smp questions

From: Ryan
Date: Sat Oct 12 2013 - 09:47:31 EST


HI,

I use a custom kernel for ARM Cortex A9. When i enable the following
macros. it detects 2 cores

CONFIG_CACHE_L2X0=y
CONFIG_CACHE_PL310_INSN_PREFETCH=y
CONFIG_CACHE_PL310_DATA_PREFETCH=y
CONFIG_CACHE_PL310_PREFETCH_DOUBLE_LINEFILL=y
CONFIG_CACHE_PL310_PREFETCH_DROP=y
CONFIG_CACHE_PL310_STANDBY_MODE=y
CONFIG_CACHE_PL310_DYNAMIC_CLOCK_GATING=y

However, If i disable them it detects only One Core.

Any Idea why is this required?


Regards,
Ryan
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/