From: Christoph Hellwig Date: Tue, 13 Feb 2007 20:54:26 +0000 (+0100) Subject: [POWERPC] spu sched: update some comments X-Git-Tag: upstream/snapshot3+hdmi~35992^2~3^2~6^2~6 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=ae7b4c5284d11d49ed9432c16505fcbeb8d3b8cf;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git [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 Signed-off-by: Arnd Bergmann --- diff --git a/arch/powerpc/platforms/cell/spufs/sched.c b/arch/powerpc/platforms/cell/spufs/sched.c index 40202a7..eb06a03 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;