Commit ada83daa authored by Andre Detsch's avatar Andre Detsch Committed by Paul Mackerras
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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outdated NPC value was being (re)written to the SPU.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: default avatarAndre Detsch <adetsch@br.ibm.com>
Signed-off-by: default avatarJeremy Kerr <jk@ozlabs.org>
Signed-off-by: default avatarPaul Mackerras <paulus@samba.org>
parent 62ee68e3
......@@ -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;
}
......
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