x86/aperfmperf: Separate AP/BP frequency invariance init

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This code is convoluted and because it can be invoked post init via the
ACPI/CPPC code, all of the initialization functionality is built in instead
of being part of init text and init data.

As a first step create separate calls for the boot and the application
processors.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Paul E. McKenney <paulmck@kernel.org>
Link: https://lore.kernel.org/r/20220415161206.536733494@linutronix.de

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This commit is contained in:

Thomas Gleixner 2022-04-15 21:19:53 +02:00

parent 55cb0b7074

commit 138a7f9c6b

4 changed files with 20 additions and 22 deletions

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12

arch/x86/include/asm/topology.h

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3

arch/x86/kernel/acpi/cppc.c

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23

arch/x86/kernel/cpu/aperfmperf.c

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4

arch/x86/kernel/smpboot.c

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