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[POWERPC] spufs: Don't call spu_run_init from spu_reacquire_runnable 

This fixes a major bug which was happening when a SPU thread advances
its execution right after being restored to a SPU.  A potentially
outdated NPC value was being (re)written to the SPU.

So, spu_run_init, in this case, was either not doing anything relevant,
or breaking the execution of the SPU thread.

This fixes a common problem of losing a mailbox write when it was done
to a saved context.

Signed-off-by: Andre Detsch <adetsch@br.ibm.com>
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Andre Detsch 2007-08-21 10:06:22 +08:00 committed by Paul Mackerras
parent 62ee68e3bc
commit ada83daab3
1 changed files with 1 additions and 5 deletions
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6
arch/powerpc/platforms/cell/spufs/run.c
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@ -193,11 +193,7 @@ static int spu_reacquire_runnable(struct spu_context *ctx, u32 *npc,
if (ret)
return ret;
ret = spu_run_init(ctx, npc);
if (ret) {
spu_release(ctx);
return ret;
}
spuctx_switch_state(ctx, SPU_UTIL_USER);
return 0;
}