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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 /arch/powerpc/platforms/cell/spufs
parent60ee031940c1b09c137b617a8829e2f081961fe0 (diff)
downloadblackbird-op-linux-3688b46b89a1a64d5eeb0df5f9d82e109712fffe.tar.gz
blackbird-op-linux-3688b46b89a1a64d5eeb0df5f9d82e109712fffe.zip
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>
Diffstat (limited to 'arch/powerpc/platforms/cell/spufs')
-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 c58bd36b0c5b..4ddf769a64e5 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;
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