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authorJeremy Kerr <jk@ozlabs.org>2009-02-17 11:44:14 +1100
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2009-02-23 10:48:59 +1100
commit3688b46b89a1a64d5eeb0df5f9d82e109712fffe (patch)
tree51837883e7cfe16f1e8434758f1b4186b72c1a2c
parent60ee031940c1b09c137b617a8829e2f081961fe0 (diff)
powerpc/spufs: Clear purge status before setting up isolated mode
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>
-rw-r--r--arch/powerpc/platforms/cell/spufs/run.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/cell/spufs/run.c b/arch/powerpc/platforms/cell/spufs/run.c
index c58bd36b0c5..4ddf769a64e 100644
--- a/arch/powerpc/platforms/cell/spufs/run.c
+++ b/arch/powerpc/platforms/cell/spufs/run.c
@@ -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;