Re: [PATCH 8/9] ARM: kernel: add support for cpu cache information

From: Sudeep Holla
Date: Thu Jun 26 2014 - 07:36:15 EST


Hi Stephen,

On 26/06/14 01:19, Stephen Boyd wrote:
On 06/25/14 10:30, Sudeep Holla wrote:
+
+/*
+ * Which cache CCSIDR represents depends on CSSELR value
+ * Make sure no one else changes CSSELR during this
+ * smp_call_function_single prevents preemption for us
+ */

Where's the smp_call_function_single() or preemption disable happening?


init_cache_level is called using smp_call_function_single in
drivers/base/cacheinfo.c(PATCH 2/9)

Regards,
Sudeep

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