提交 ae7b4c52 编写于 作者: C Christoph Hellwig 提交者: Arnd Bergmann

[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: NChristoph Hellwig <hch@lst.de>
Signed-off-by: NArnd Bergmann <arnd.bergmann@de.ibm.com>
上级 678b2ff1
...@@ -281,14 +281,6 @@ static struct spu *spu_get_idle(struct spu_context *ctx) ...@@ -281,14 +281,6 @@ static struct spu *spu_get_idle(struct spu_context *ctx)
return spu; return spu;
} }
/* The three externally callable interfaces
* for the scheduler begin here.
*
* spu_activate - bind a context to SPU, waiting as needed.
* spu_deactivate - unbind a context from its SPU.
* spu_yield - yield an SPU if others are waiting.
*/
/** /**
* spu_activate - find a free spu for a context and execute it * spu_activate - find a free spu for a context and execute it
* @ctx: spu context to schedule * @ctx: spu context to schedule
...@@ -339,6 +331,14 @@ void spu_deactivate(struct spu_context *ctx) ...@@ -339,6 +331,14 @@ void spu_deactivate(struct spu_context *ctx)
} }
} }
/**
* spu_yield - yield a physical spu if others are waiting
* @ctx: spu context to yield
*
* Check if there is a higher priority context waiting and if yes
* unbind @ctx from the physical spu and schedule the highest
* priority context to run on the freed physical spu instead.
*/
void spu_yield(struct spu_context *ctx) void spu_yield(struct spu_context *ctx)
{ {
struct spu *spu; struct spu *spu;
......
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