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lockup_detector: Adapt CONFIG_PERF_EVENT_NMI to other archs

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CONFIG_PERF_EVENT_NMI is something that need to be enabled from the
arch. This is fine on x86 as PERF_EVENTS is builtin but if other
archs select it, they will need to handle the PERF_EVENTS dependency.

Instead, handle the dependency in the generic layer:

- archs need to tell what they support through HAVE_PERF_EVENTS_NMI
- Enable magically PERF_EVENTS_NMI if we have PERF_EVENTS and
  HAVE_PERF_EVENTS_NMI.

Signed-off-by: Frederic Weisbecker <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Don Zickus <[email protected]>
Cc: Cyrill Gorcunov <[email protected]>
This commit is contained in:
Frederic Weisbecker 2010-05-15 22:57:48 +02:00
commit c01d432330
3 changed files with 5 additions and 3 deletions
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3
arch/Kconfig
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@ -145,4 +145,7 @@ config HAVE_HW_BREAKPOINT
config HAVE_USER_RETURN_NOTIFIER
bool
config HAVE_PERF_EVENTS_NMI
bool
source "kernel/gcov/Kconfig"