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Diffstat (limited to 'arch/powerpc/lib/locks.c')
-rw-r--r--arch/powerpc/lib/locks.c27
1 files changed, 13 insertions, 14 deletions
diff --git a/arch/powerpc/lib/locks.c b/arch/powerpc/lib/locks.c
index 077bed7dc52b..80b482ca30df 100644
--- a/arch/powerpc/lib/locks.c
+++ b/arch/powerpc/lib/locks.c
@@ -23,6 +23,7 @@
#include <asm/hvcall.h>
#include <asm/iseries/hv_call.h>
#include <asm/smp.h>
+#include <asm/firmware.h>
void __spin_yield(raw_spinlock_t *lock)
{
@@ -39,13 +40,12 @@ void __spin_yield(raw_spinlock_t *lock)
rmb();
if (lock->slock != lock_value)
return; /* something has changed */
-#ifdef CONFIG_PPC_ISERIES
- HvCall2(HvCallBaseYieldProcessor, HvCall_YieldToProc,
- ((u64)holder_cpu << 32) | yield_count);
-#else
- plpar_hcall_norets(H_CONFER, get_hard_smp_processor_id(holder_cpu),
- yield_count);
-#endif
+ if (firmware_has_feature(FW_FEATURE_ISERIES))
+ HvCall2(HvCallBaseYieldProcessor, HvCall_YieldToProc,
+ ((u64)holder_cpu << 32) | yield_count);
+ else
+ plpar_hcall_norets(H_CONFER,
+ get_hard_smp_processor_id(holder_cpu), yield_count);
}
/*
@@ -69,13 +69,12 @@ void __rw_yield(raw_rwlock_t *rw)
rmb();
if (rw->lock != lock_value)
return; /* something has changed */
-#ifdef CONFIG_PPC_ISERIES
- HvCall2(HvCallBaseYieldProcessor, HvCall_YieldToProc,
- ((u64)holder_cpu << 32) | yield_count);
-#else
- plpar_hcall_norets(H_CONFER, get_hard_smp_processor_id(holder_cpu),
- yield_count);
-#endif
+ if (firmware_has_feature(FW_FEATURE_ISERIES))
+ HvCall2(HvCallBaseYieldProcessor, HvCall_YieldToProc,
+ ((u64)holder_cpu << 32) | yield_count);
+ else
+ plpar_hcall_norets(H_CONFER,
+ get_hard_smp_processor_id(holder_cpu), yield_count);
}
#endif