diff options
Diffstat (limited to 'arch/powerpc/platforms/cell/spu_base.c')
| -rw-r--r-- | arch/powerpc/platforms/cell/spu_base.c | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/cell/spu_base.c b/arch/powerpc/platforms/cell/spu_base.c index 174bd9f911d..e4d0c9f42ab 100644 --- a/arch/powerpc/platforms/cell/spu_base.c +++ b/arch/powerpc/platforms/cell/spu_base.c @@ -585,6 +585,9 @@ static int __init create_spu(void *data) spin_unlock_irqrestore(&spu_list_lock, flags); mutex_unlock(&spu_mutex); + spu->stats.utilization_state = SPU_UTIL_IDLE; + spu->stats.tstamp = jiffies; + goto out; out_free_irqs: @@ -597,6 +600,45 @@ out: return ret; } +static const char *spu_state_names[] = { + "user", "system", "iowait", "idle" +}; + +static unsigned long long spu_acct_time(struct spu *spu, + enum spu_utilization_state state) +{ + unsigned long long time = spu->stats.times[state]; + + if (spu->stats.utilization_state == state) + time += jiffies - spu->stats.tstamp; + + return jiffies_to_msecs(time); +} + + +static ssize_t spu_stat_show(struct sys_device *sysdev, char *buf) +{ + struct spu *spu = container_of(sysdev, struct spu, sysdev); + + return sprintf(buf, "%s %llu %llu %llu %llu " + "%llu %llu %llu %llu %llu %llu %llu %llu\n", + spu_state_names[spu->stats.utilization_state], + spu_acct_time(spu, SPU_UTIL_USER), + spu_acct_time(spu, SPU_UTIL_SYSTEM), + spu_acct_time(spu, SPU_UTIL_IOWAIT), + spu_acct_time(spu, SPU_UTIL_IDLE), + spu->stats.vol_ctx_switch, + spu->stats.invol_ctx_switch, + spu->stats.slb_flt, + spu->stats.hash_flt, + spu->stats.min_flt, + spu->stats.maj_flt, + spu->stats.class2_intr, + spu->stats.libassist); +} + +static SYSDEV_ATTR(stat, 0644, spu_stat_show, NULL); + static int __init init_spu_base(void) { int i, ret = 0; @@ -622,6 +664,8 @@ static int __init init_spu_base(void) xmon_register_spus(&spu_full_list); + spu_add_sysdev_attr(&attr_stat); + return 0; out_unregister_sysdev_class: |