4 files changed, 20 insertions, 16 deletions

diff --git a/arch/powerpc/include/asm/pmc.h b/arch/powerpc/include/asm/pmc.h
index d6a616a1b3ea..ccc68b50d05d 100644
--- a/arch/powerpc/include/asm/pmc.h
+++ b/arch/powerpc/include/asm/pmc.h
@@ -27,10 +27,22 @@ extern perf_irq_t perf_irq;
 
 int reserve_pmc_hardware(perf_irq_t new_perf_irq);
 void release_pmc_hardware(void);
+void ppc_enable_pmcs(void);
 
 #ifdef CONFIG_PPC64
-void power4_enable_pmcs(void);
-void pasemi_enable_pmcs(void);
+#include <asm/lppaca.h>
+
+static inline void ppc_set_pmu_inuse(int inuse)
+{
+        get_lppaca()->pmcregs_in_use = inuse;
+}
+
+extern void power4_enable_pmcs(void);
+
+#else /* CONFIG_PPC64 */
+
+static inline void ppc_set_pmu_inuse(int inuse) { }
+
 #endif
 
 #endif /* __KERNEL__ */
diff --git a/arch/powerpc/kernel/perf_counter.c b/arch/powerpc/kernel/perf_counter.c
index 70e1f57f7dd8..ccd6b2135642 100644
--- a/arch/powerpc/kernel/perf_counter.c
+++ b/arch/powerpc/kernel/perf_counter.c
@@ -62,7 +62,6 @@ static inline unsigned long perf_ip_adjust(struct pt_regs *regs)
 {
         return 0;
 }
-static inline void perf_set_pmu_inuse(int inuse) { }
 static inline void perf_get_data_addr(struct pt_regs *regs, u64 *addrp) { }
 static inline u32 perf_get_misc_flags(struct pt_regs *regs)
 {
@@ -93,11 +92,6 @@ static inline unsigned long perf_ip_adjust(struct pt_regs *regs)
         return 0;
 }
 
-static inline void perf_set_pmu_inuse(int inuse)
-{
-        get_lppaca()->pmcregs_in_use = inuse;
-}
-
 /*
  * The user wants a data address recorded.
  * If we're not doing instruction sampling, give them the SDAR
@@ -531,8 +525,7 @@ void hw_perf_disable(void)
                  * Check if we ever enabled the PMU on this cpu.
                  */
                 if (!cpuhw->pmcs_enabled) {
-                        if (ppc_md.enable_pmcs)
-                                ppc_md.enable_pmcs();
+                        ppc_enable_pmcs();
                         cpuhw->pmcs_enabled = 1;
                 }
 
@@ -594,7 +587,7 @@ void hw_perf_enable(void)
                 mtspr(SPRN_MMCRA, cpuhw->mmcr[2] & ~MMCRA_SAMPLE_ENABLE);
                 mtspr(SPRN_MMCR1, cpuhw->mmcr[1]);
                 if (cpuhw->n_counters == 0)
-                        perf_set_pmu_inuse(0);
+                        ppc_set_pmu_inuse(0);
                 goto out_enable;
         }
 
@@ -627,7 +620,7 @@ void hw_perf_enable(void)
          * bit set and set the hardware counters to their initial values.
          * Then unfreeze the counters.
          */
-        perf_set_pmu_inuse(1);
+        ppc_set_pmu_inuse(1);
         mtspr(SPRN_MMCRA, cpuhw->mmcr[2] & ~MMCRA_SAMPLE_ENABLE);
         mtspr(SPRN_MMCR1, cpuhw->mmcr[1]);
         mtspr(SPRN_MMCR0, (cpuhw->mmcr[0] & ~(MMCR0_PMC1CE | MMCR0_PMCjCE))
diff --git a/arch/powerpc/kernel/sysfs.c b/arch/powerpc/kernel/sysfs.c
index f41aec85aa49..956ab33fd73f 100644
--- a/arch/powerpc/kernel/sysfs.c
+++ b/arch/powerpc/kernel/sysfs.c
@@ -17,6 +17,7 @@
 #include <asm/prom.h>
 #include <asm/machdep.h>
 #include <asm/smp.h>
+#include <asm/pmc.h>
 
 #include "cacheinfo.h"
 
@@ -123,6 +124,8 @@ static DEFINE_PER_CPU(char, pmcs_enabled);
 
 void ppc_enable_pmcs(void)
 {
+        ppc_set_pmu_inuse(1);
+
         /* Only need to enable them once */
         if (__get_cpu_var(pmcs_enabled))
                 return;
diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c
index 8d75ea21296f..ca5f2e10972c 100644
--- a/arch/powerpc/platforms/pseries/setup.c
+++ b/arch/powerpc/platforms/pseries/setup.c
@@ -223,10 +223,6 @@ static void pseries_lpar_enable_pmcs(void)
         set = 1UL << 63;
         reset = 0;
         plpar_hcall_norets(H_PERFMON, set, reset);
-
-        /* instruct hypervisor to maintain PMCs */
-        if (firmware_has_feature(FW_FEATURE_SPLPAR))
-                get_lppaca()->pmcregs_in_use = 1;
 }
 
 static void __init pseries_discover_pic(void)