[POWERPC] spu sched: update some comments
Give spu_yield a kerneldoc comment and remove the old comment documenting spu_activate, spu_deactive and spu_yield as all of them now have descriptive kerneldoc comments of their own. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
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@ -281,14 +281,6 @@ static struct spu *spu_get_idle(struct spu_context *ctx)
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return spu;
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}
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/* The three externally callable interfaces
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* for the scheduler begin here.
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*
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* spu_activate - bind a context to SPU, waiting as needed.
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* spu_deactivate - unbind a context from its SPU.
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* spu_yield - yield an SPU if others are waiting.
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*/
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/**
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* spu_activate - find a free spu for a context and execute it
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* @ctx: spu context to schedule
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@ -339,6 +331,14 @@ void spu_deactivate(struct spu_context *ctx)
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}
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}
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/**
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* spu_yield - yield a physical spu if others are waiting
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* @ctx: spu context to yield
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*
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* Check if there is a higher priority context waiting and if yes
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* unbind @ctx from the physical spu and schedule the highest
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* priority context to run on the freed physical spu instead.
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*/
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void spu_yield(struct spu_context *ctx)
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{
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struct spu *spu;
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