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authorMathieu Desnoyers <mathieu.desnoyers@polymtl.ca>2008-01-15 12:42:02 -0500
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2008-01-15 12:32:30 -0800
commit7d2284b09fd967b5cad6f03c6d4a5c064f37b855 (patch)
treec883197f7907315ca08cb322c4eb50de5ee0ce7c /arch/blackfin/Kconfig
parent38ad9aebe70dc72df08851bbd1620d89329129ba (diff)
downloadlinux-stericsson-7d2284b09fd967b5cad6f03c6d4a5c064f37b855.tar.gz
Fix Blackfin HARDWARE_PM support
This patch restores the blackfin Hardware Performance Monitor Profiling support that was killed by the combining of instrumentation menus in commit 09cadedbdc01f1a4bea1f427d4fb4642eaa19da9. Since there seems to be no good reason to behave differently from other architectures, it now automatically selects the hardware performance counters whenever the profiling is activated. mach-common/irqpanic.c: pm_overflow calls pm_overflow_handler which is in oprofile/op_model_bf533.c. I doubt that setting HARDWARE_PM as "m" will work at all, since the pm_overflow_handler should be in the core kernel image because it is called by irqpanic.c. Therefore, I change HARDWARE_PM from a tristate to a bool. The whole arch/$(ARCH)/oprofile/ is built depending on CONFIG_OPROFILE. Since part of the HARDWARE_PM support files sits in this directory, it makes sense to also depend on OPROFILE, not only PROFILING. Since OPROFILE already depends on PROFILING, it is correct to only depend on OPROFILE only. Thanks to Adrian Bunk for finding this bug and providing an initial patch. Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> CC: Adrian Bunk <adrian.bunk@movial.fi> CC: Randy Dunlap <randy.dunlap@oracle.com> CC: bryan.wu@analog.com Acked-by: Robin Getz <rgetz@blackfin.uclinux.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/blackfin/Kconfig')
-rw-r--r--arch/blackfin/Kconfig4
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig
index 2a3a7ea5958c..25232ba08119 100644
--- a/arch/blackfin/Kconfig
+++ b/arch/blackfin/Kconfig
@@ -65,6 +65,10 @@ config GENERIC_CALIBRATE_DELAY
bool
default y
+config HARDWARE_PM
+ def_bool y
+ depends on OPROFILE
+
source "init/Kconfig"
source "kernel/Kconfig.preempt"