[PATCH 1/2] oprofile: Add HAVE_OPROFILE_NMI_TIMER

[Anton Blanchard <anton@samba.org>]

HAVE_PERF_EVENTS_NMI is used for two things - the oprofile NMI timer
and the hard lockup detector.

Create HAVE_OPROFILE_NMI_TIMER so an architecture can select them
separately. On ppc64 we want to add the hard lockup detector, but not
the oprofile NMI timer fallback.

Signed-off-by: Anton Blanchard <anton@samba.org>
---

Resending, because I forgot to cc the x86 guys.

How would you like us to handle it? Michael Ellerman says
we can put it in a topic branch, or just merge it and cop
any conflicts.

diff --git a/arch/Kconfig b/arch/Kconfig
index 05d7a8a..3d50e42 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -30,9 +30,12 @@ config OPROFILE_EVENT_MULTIPLEX
 config HAVE_OPROFILE
 	bool
 
+config HAVE_OPROFILE_NMI_TIMER
+	bool
+
 config OPROFILE_NMI_TIMER
 	def_bool y
-	depends on PERF_EVENTS && HAVE_PERF_EVENTS_NMI
+	depends on PERF_EVENTS && HAVE_OPROFILE_NMI_TIMER
 
 config KPROBES
 	bool "Kprobes"
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index ba397bd..98d9c72 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -138,6 +138,7 @@ config X86
 	select HAVE_ACPI_APEI_NMI if ACPI
 	select ACPI_LEGACY_TABLES_LOOKUP if ACPI
 	select X86_FEATURE_NAMES if PROC_FS
+	select HAVE_OPROFILE_NMI_TIMER
 
 config INSTRUCTION_DECODER
 	def_bool y
-- 
2.1.0