diff options
Diffstat (limited to 'arch/powerpc/platforms/cell/spufs/file.c')
| -rw-r--r-- | arch/powerpc/platforms/cell/spufs/file.c | 32 |
1 files changed, 22 insertions, 10 deletions
diff --git a/arch/powerpc/platforms/cell/spufs/file.c b/arch/powerpc/platforms/cell/spufs/file.c index fe16411..9351db9 100644 --- a/arch/powerpc/platforms/cell/spufs/file.c +++ b/arch/powerpc/platforms/cell/spufs/file.c @@ -2079,14 +2079,26 @@ static const char *ctx_state_names[] = { }; static unsigned long long spufs_acct_time(struct spu_context *ctx, - enum spuctx_execution_state state) + enum spu_utilization_state state) { - unsigned long time = ctx->stats.times[state]; + struct timespec ts; + unsigned long long time = ctx->stats.times[state]; - if (ctx->stats.execution_state == state) - time += jiffies - ctx->stats.tstamp; + /* + * In general, utilization statistics are updated by the controlling + * thread as the spu context moves through various well defined + * state transitions, but if the context is lazily loaded its + * utilization statistics are not updated as the controlling thread + * is not tightly coupled with the execution of the spu context. We + * calculate and apply the time delta from the last recorded state + * of the spu context. + */ + if (ctx->spu && ctx->stats.util_state == state) { + ktime_get_ts(&ts); + time += timespec_to_ns(&ts) - ctx->stats.tstamp; + } - return jiffies_to_msecs(time); + return time / NSEC_PER_MSEC; } static unsigned long long spufs_slb_flts(struct spu_context *ctx) @@ -2121,11 +2133,11 @@ static int spufs_show_stat(struct seq_file *s, void *private) spu_acquire(ctx); seq_printf(s, "%s %llu %llu %llu %llu " "%llu %llu %llu %llu %llu %llu %llu %llu\n", - ctx_state_names[ctx->stats.execution_state], - spufs_acct_time(ctx, SPUCTX_UTIL_USER), - spufs_acct_time(ctx, SPUCTX_UTIL_SYSTEM), - spufs_acct_time(ctx, SPUCTX_UTIL_IOWAIT), - spufs_acct_time(ctx, SPUCTX_UTIL_LOADED), + ctx_state_names[ctx->stats.util_state], + spufs_acct_time(ctx, SPU_UTIL_USER), + spufs_acct_time(ctx, SPU_UTIL_SYSTEM), + spufs_acct_time(ctx, SPU_UTIL_IOWAIT), + spufs_acct_time(ctx, SPU_UTIL_IDLE_LOADED), ctx->stats.vol_ctx_switch, ctx->stats.invol_ctx_switch, spufs_slb_flts(ctx), |