diff options
Diffstat (limited to 'arch/powerpc/platforms/cell/spu_base.c')
| -rw-r--r-- | arch/powerpc/platforms/cell/spu_base.c | 24 |
1 files changed, 17 insertions, 7 deletions
diff --git a/arch/powerpc/platforms/cell/spu_base.c b/arch/powerpc/platforms/cell/spu_base.c index c563066e640d..caaf2bf78cad 100644 --- a/arch/powerpc/platforms/cell/spu_base.c +++ b/arch/powerpc/platforms/cell/spu_base.c @@ -553,6 +553,7 @@ static int __init create_spu(void *data) int ret; static int number; unsigned long flags; + struct timespec ts; ret = -ENOMEM; spu = kzalloc(sizeof (*spu), GFP_KERNEL); @@ -586,8 +587,9 @@ 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; + spu->stats.util_state = SPU_UTIL_IDLE_LOADED; + ktime_get_ts(&ts); + spu->stats.tstamp = timespec_to_ns(&ts); goto out; @@ -608,12 +610,20 @@ static const char *spu_state_names[] = { static unsigned long long spu_acct_time(struct spu *spu, enum spu_utilization_state state) { + struct timespec ts; unsigned long long time = spu->stats.times[state]; - if (spu->stats.utilization_state == state) - time += jiffies - spu->stats.tstamp; + /* + * If the spu is idle or the context is stopped, utilization + * statistics are not updated. Apply the time delta from the + * last recorded state of the spu. + */ + if (spu->stats.util_state == state) { + ktime_get_ts(&ts); + time += timespec_to_ns(&ts) - spu->stats.tstamp; + } - return jiffies_to_msecs(time); + return time / NSEC_PER_MSEC; } @@ -623,11 +633,11 @@ static ssize_t spu_stat_show(struct sys_device *sysdev, char *buf) 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_state_names[spu->stats.util_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_acct_time(spu, SPU_UTIL_IDLE_LOADED), spu->stats.vol_ctx_switch, spu->stats.invol_ctx_switch, spu->stats.slb_flt, |