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authorChristoph Hellwig <hch@lst.de>2007-06-29 10:58:03 +1000
committerPaul Mackerras <paulus@samba.org>2007-07-03 15:24:46 +1000
commite9f8a0b65ac716fd7974159240ce34bddea780b3 (patch)
tree70e9541861443fc378adc8cc924522e9eb73ab33 /arch/powerpc/platforms/cell/spufs/sched.c
parent65de66f0b8bcb7431d9df82cf32b002062b3a611 (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.c19
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);
/*

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