2 files changed, 24 insertions, 1 deletions

diff --git a/arch/powerpc/kernel/lparcfg.c b/arch/powerpc/kernel/lparcfg.c
index d82e1fa5ce2a..848c3e5a6370 100644
--- a/arch/powerpc/kernel/lparcfg.c
+++ b/arch/powerpc/kernel/lparcfg.c
@@ -409,6 +409,25 @@ static int lparcfg_count_active_processors(void)
         return count;
 }
 
+static void pseries_cmo_data(struct seq_file *m)
+{
+        int cpu;
+        unsigned long cmo_faults = 0;
+        unsigned long cmo_fault_time = 0;
+
+        if (!firmware_has_feature(FW_FEATURE_CMO))
+                return;
+
+        for_each_possible_cpu(cpu) {
+                cmo_faults += lppaca[cpu].cmo_faults;
+                cmo_fault_time += lppaca[cpu].cmo_fault_time;
+        }
+
+        seq_printf(m, "cmo_faults=%lu\n", cmo_faults);
+        seq_printf(m, "cmo_fault_time_usec=%lu\n",
+                   cmo_fault_time / tb_ticks_per_usec);
+}
+
 static int pseries_lparcfg_data(struct seq_file *m, void *v)
 {
         int partition_potential_processors;
@@ -434,6 +453,7 @@ static int pseries_lparcfg_data(struct seq_file *m, void *v)
                 parse_system_parameter_string(m);
                 parse_ppp_data(m);
                 parse_mpp_data(m);
+                pseries_cmo_data(m);
 
                 seq_printf(m, "purr=%ld\n", get_purr());
         } else {                /* non SPLPAR case */
diff --git a/include/asm-powerpc/lppaca.h b/include/asm-powerpc/lppaca.h
index 567ed92cd91f..2fe268b10333 100644
--- a/include/asm-powerpc/lppaca.h
+++ b/include/asm-powerpc/lppaca.h
@@ -125,7 +125,10 @@ struct lppaca {
         // NOTE: This value will ALWAYS be zero for dedicated processors and
         // will NEVER be zero for shared processors (ie, initialized to a 1).
         volatile u32 yield_count;       // PLIC increments each dispatchx00-x03
-        u8      reserved6[124];         // Reserved                     x04-x7F
+        u32 reserved6;
+        volatile u64 cmo_faults;        // CMO page fault count         x08-x0F
+        volatile u64 cmo_fault_time;    // CMO page fault time          x10-x17
+        u8      reserved7[104];         // Reserved                     x18-x7F
 
 //=============================================================================
 // CACHE_LINE_4-5 0x0180 - 0x027F Contains PMC interrupt data