diff options
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/platforms/cell/spufs/switch.c | 9 |
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) |