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powerpc/spufs: Clear purge status before setting up isolated mode

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Currently, we may setup the MFC for isolated mode initilaisation with
the purge still active. This means that DMAs required to perform the
init do not happen.

This change clears the purge status after doing the purge, so that
the isolated init can proceed.

Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Jeremy Kerr 2009-02-17 11:44:14 +11:00 committed by Benjamin Herrenschmidt
parent 60ee031940
commit 3688b46b89
1 changed files with 3 additions and 0 deletions
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3
arch/powerpc/platforms/cell/spufs/run.c
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@ -117,6 +117,9 @@ static int spu_setup_isolated(struct spu_context *ctx)
cond_resched();
}
/* clear purge status */
out_be64(mfc_cntl, 0);
/* put the SPE in kernel mode to allow access to the loader */
sr1 = spu_mfc_sr1_get(ctx->spu);
sr1 &= ~MFC_STATE1_PROBLEM_STATE_MASK;