diff options
Diffstat (limited to 'arch/powerpc/platforms/cell/spufs/sched.c')
| -rw-r--r-- | arch/powerpc/platforms/cell/spufs/sched.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/cell/spufs/sched.c b/arch/powerpc/platforms/cell/spufs/sched.c index 0117eb8f6a91..ee80de07c0bc 100644 --- a/arch/powerpc/platforms/cell/spufs/sched.c +++ b/arch/powerpc/platforms/cell/spufs/sched.c @@ -892,6 +892,38 @@ static int spusched_thread(void *unused) return 0; } +void spuctx_switch_state(struct spu_context *ctx, + enum spu_utilization_state new_state) +{ + unsigned long long curtime; + signed long long delta; + struct timespec ts; + struct spu *spu; + enum spu_utilization_state old_state; + + ktime_get_ts(&ts); + curtime = timespec_to_ns(&ts); + delta = curtime - ctx->stats.tstamp; + + WARN_ON(!mutex_is_locked(&ctx->state_mutex)); + WARN_ON(delta < 0); + + spu = ctx->spu; + old_state = ctx->stats.util_state; + ctx->stats.util_state = new_state; + ctx->stats.tstamp = curtime; + + /* + * Update the physical SPU utilization statistics. + */ + if (spu) { + ctx->stats.times[old_state] += delta; + spu->stats.times[old_state] += delta; + spu->stats.util_state = new_state; + spu->stats.tstamp = curtime; + } +} + #define LOAD_INT(x) ((x) >> FSHIFT) #define LOAD_FRAC(x) LOAD_INT(((x) & (FIXED_1-1)) * 100) |
