diff options
| -rw-r--r-- | arch/powerpc/kernel/lparcfg.c | 20 | ||||
| -rw-r--r-- | include/asm-powerpc/lppaca.h | 5 |
2 files changed, 24 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/lparcfg.c b/arch/powerpc/kernel/lparcfg.c index d82e1fa5ce2..848c3e5a637 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 567ed92cd91..2fe268b1033 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 |