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authorChristoph Hellwig <hch@lst.de>2007-02-13 21:54:26 +0100
committerArnd Bergmann <arnd@klappe.arndb.de>2007-02-13 21:55:42 +0100
commitae7b4c5284d11d49ed9432c16505fcbeb8d3b8cf (patch)
treec1d627d745843c48aa6bb3dc9086c63b4e3f840a /arch/powerpc
parent678b2ff1e65ecccdb15cbfe97081572fc35944b7 (diff)
[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>
Diffstat (limited to 'arch/powerpc')
-rw-r--r--arch/powerpc/platforms/cell/spufs/sched.c16
1 files changed, 8 insertions, 8 deletions
diff --git a/arch/powerpc/platforms/cell/spufs/sched.c b/arch/powerpc/platforms/cell/spufs/sched.c
index 40202a752a7a..eb06a030ca09 100644
--- a/arch/powerpc/platforms/cell/spufs/sched.c
+++ b/arch/powerpc/platforms/cell/spufs/sched.c
@@ -281,14 +281,6 @@ static struct spu *spu_get_idle(struct spu_context *ctx)
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
* @ctx: spu context to schedule
@@ -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)
{
struct spu *spu;