diff options
| author | Christoph Hellwig <hch@lst.de> | 2007-06-29 10:58:03 +1000 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2007-07-03 15:24:46 +1000 |
| commit | e9f8a0b65ac716fd7974159240ce34bddea780b3 (patch) | |
| tree | 70e9541861443fc378adc8cc924522e9eb73ab33 /arch/powerpc/platforms/cell/spufs/sched.c | |
| parent | 65de66f0b8bcb7431d9df82cf32b002062b3a611 (diff) | |
[POWERPC] spufs: Add stat file to spufs
Export per-context statistics in spufs.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/platforms/cell/spufs/sched.c')
| -rw-r--r-- | arch/powerpc/platforms/cell/spufs/sched.c | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/arch/powerpc/platforms/cell/spufs/sched.c b/arch/powerpc/platforms/cell/spufs/sched.c index 9fc09306c9ae..bb16c22360d5 100644 --- a/arch/powerpc/platforms/cell/spufs/sched.c +++ b/arch/powerpc/platforms/cell/spufs/sched.c @@ -229,6 +229,10 @@ static void spu_bind_context(struct spu *spu, struct spu_context *ctx) { pr_debug("%s: pid=%d SPU=%d NODE=%d\n", __FUNCTION__, current->pid, spu->number, spu->node); + + ctx->stats.slb_flt_base = spu->stats.slb_flt; + ctx->stats.class2_intr_base = spu->stats.class2_intr; + spu->ctx = ctx; spu->flags = 0; ctx->spu = spu; @@ -275,6 +279,11 @@ static void spu_unbind_context(struct spu *spu, struct spu_context *ctx) ctx->spu = NULL; spu->flags = 0; spu->ctx = NULL; + + ctx->stats.slb_flt += + (spu->stats.slb_flt - ctx->stats.slb_flt_base); + ctx->stats.class2_intr += + (spu->stats.class2_intr - ctx->stats.class2_intr_base); } /** @@ -400,6 +409,7 @@ static struct spu *find_victim(struct spu_context *ctx) } spu_remove_from_active_list(spu); spu_unbind_context(spu, victim); + victim->stats.invol_ctx_switch++; mutex_unlock(&victim->state_mutex); /* * We need to break out of the wait loop in spu_run @@ -425,6 +435,7 @@ static struct spu *find_victim(struct spu_context *ctx) */ int spu_activate(struct spu_context *ctx, unsigned long flags) { + spuctx_switch_state(ctx, SPUCTX_UTIL_SYSTEM); if (ctx->spu) return 0; @@ -492,6 +503,7 @@ static int __spu_deactivate(struct spu_context *ctx, int force, int max_prio) if (new || force) { spu_remove_from_active_list(spu); spu_unbind_context(spu, ctx); + ctx->stats.vol_ctx_switch++; spu_free(spu); if (new) wake_up(&new->stop_wq); @@ -521,6 +533,7 @@ void spu_deactivate(struct spu_context *ctx) } __spu_deactivate(ctx, 1, MAX_PRIO); + spuctx_switch_state(ctx, SPUCTX_UTIL_USER); } /** @@ -535,7 +548,10 @@ void spu_yield(struct spu_context *ctx) { if (!(ctx->flags & SPU_CREATE_NOSCHED)) { mutex_lock(&ctx->state_mutex); - __spu_deactivate(ctx, 0, MAX_PRIO); + if (__spu_deactivate(ctx, 0, MAX_PRIO)) + spuctx_switch_state(ctx, SPUCTX_UTIL_USER); + else + spuctx_switch_state(ctx, SPUCTX_UTIL_LOADED); mutex_unlock(&ctx->state_mutex); } } @@ -564,6 +580,7 @@ static void spusched_tick(struct spu_context *ctx) __spu_remove_from_active_list(spu); spu_unbind_context(spu, ctx); + ctx->stats.invol_ctx_switch++; spu_free(spu); wake_up(&new->stop_wq); /* |