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-rw-r--r--arch/powerpc/platforms/cell/spufs/switch.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/cell/spufs/switch.c b/arch/powerpc/platforms/cell/spufs/switch.c
index 9d9d82dd32b..0f782ca662b 100644
--- a/arch/powerpc/platforms/cell/spufs/switch.c
+++ b/arch/powerpc/platforms/cell/spufs/switch.c
@@ -1779,6 +1779,15 @@ static inline void restore_mfc_cntl(struct spu_state *csa, struct spu *spu)
*/
out_be64(&priv2->mfc_control_RW, csa->priv2.mfc_control_RW);
eieio();
+ /*
+ * FIXME: this is to restart a DMA that we were processing
+ * before the save. better remember the fault information
+ * in the csa instead.
+ */
+ if ((csa->priv2.mfc_control_RW & MFC_CNTL_SUSPEND_DMA_QUEUE_MASK)) {
+ out_be64(&priv2->mfc_control_RW, MFC_CNTL_RESTART_DMA_COMMAND);
+ eieio();
+ }
}
static inline void enable_user_access(struct spu_state *csa, struct spu *spu)