[PATCH 4/5] KVM: PPC: Book3S HV: Expose timing functions to module code

[Fabiano Rosas]

The next patch adds new timing points to the P9 entry path, some of
which are in the module code, so we need to export the timing
functions.

Signed-off-by: Fabiano Rosas <farosas at linux.ibm.com>
---
 arch/powerpc/kvm/book3s_hv.h          | 10 ++++++++++
 arch/powerpc/kvm/book3s_hv_p9_entry.c | 11 ++---------
 2 files changed, 12 insertions(+), 9 deletions(-)

diff --git a/arch/powerpc/kvm/book3s_hv.h b/arch/powerpc/kvm/book3s_hv.h
index 6b7f07d9026b..2f2e59d7d433 100644
--- a/arch/powerpc/kvm/book3s_hv.h
+++ b/arch/powerpc/kvm/book3s_hv.h
@@ -40,3 +40,13 @@ void switch_pmu_to_guest(struct kvm_vcpu *vcpu,
 			    struct p9_host_os_sprs *host_os_sprs);
 void switch_pmu_to_host(struct kvm_vcpu *vcpu,
 			    struct p9_host_os_sprs *host_os_sprs);
+
+#ifdef CONFIG_KVM_BOOK3S_HV_P9_TIMING
+void accumulate_time(struct kvm_vcpu *vcpu, struct kvmhv_tb_accumulator *next);
+#define start_timing(vcpu, next) accumulate_time(vcpu, next)
+#define end_timing(vcpu) accumulate_time(vcpu, NULL)
+#else
+#define accumulate_time(vcpu, next) do {} while (0)
+#define start_timing(vcpu, next) do {} while (0)
+#define end_timing(vcpu) do {} while (0)
+#endif
diff --git a/arch/powerpc/kvm/book3s_hv_p9_entry.c b/arch/powerpc/kvm/book3s_hv_p9_entry.c
index f8ce473149b7..8b2a9a360e4e 100644
--- a/arch/powerpc/kvm/book3s_hv_p9_entry.c
+++ b/arch/powerpc/kvm/book3s_hv_p9_entry.c
@@ -438,7 +438,7 @@ void restore_p9_host_os_sprs(struct kvm_vcpu *vcpu,
 EXPORT_SYMBOL_GPL(restore_p9_host_os_sprs);
 
 #ifdef CONFIG_KVM_BOOK3S_HV_P9_TIMING
-static void __accumulate_time(struct kvm_vcpu *vcpu, struct kvmhv_tb_accumulator *next)
+void accumulate_time(struct kvm_vcpu *vcpu, struct kvmhv_tb_accumulator *next)
 {
 	struct kvmppc_vcore *vc = vcpu->arch.vcore;
 	struct kvmhv_tb_accumulator *curr;
@@ -468,14 +468,7 @@ static void __accumulate_time(struct kvm_vcpu *vcpu, struct kvmhv_tb_accumulator
 	smp_wmb();
 	curr->seqcount = seq + 2;
 }
-
-#define start_timing(vcpu, next) __accumulate_time(vcpu, next)
-#define end_timing(vcpu) __accumulate_time(vcpu, NULL)
-#define accumulate_time(vcpu, next) __accumulate_time(vcpu, next)
-#else
-#define start_timing(vcpu, next) do {} while (0)
-#define end_timing(vcpu) do {} while (0)
-#define accumulate_time(vcpu, next) do {} while (0)
+EXPORT_SYMBOL_GPL(accumulate_time);
 #endif
 
 static inline u64 mfslbv(unsigned int idx)
-- 
2.35.1