ARM: 5899/2: arm: provide a mechanism to reserve performance counters
To add support for perf events and to allow the hardware counters to be
shared with oprofile, we need a way to reserve access to the pmu
(performance monitor unit). Platforms with PMU interrupts should
register the interrupts in arch/arm/kernel/pmu.c
Signed-off-by: Jamie Iles <jamie.iles@picochip.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 233a222..9e08891 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -863,6 +863,11 @@
depends on CPU_XSCALE && !XSCALE_PMU_TIMER
default y
+config CPU_HAS_PMU
+ depends on CPU_V6 || CPU_V7 || XSCALE_PMU
+ default y
+ bool
+
if !MMU
source "arch/arm/Kconfig-nommu"
endif