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authorMasato Noguchi <Masato.Noguchi@jp.sony.com>2007-07-20 21:39:39 +0200
committerArnd Bergmann <arnd@klappe.arndb.de>2007-07-20 21:41:57 +0200
commita103f347a5ae2735b9bf0a725a36c34be3f24c88 (patch)
tree2b0cfb0a9ce237534b45e67acd3b3e8b9140c874 /arch
parentd40a01d4f4f205d0645beb371edc153d9ec8fb9f (diff)
[CELL] spufs: limit saving MFC_CNTL bits
At save step 8, the mfc control register in the CSA should be written _only_ with Sc and Sm bits (at least MFC_CNTL[Dh] should be set to 0) Signed-off-by: Masato Noguchi <Masato.Noguchi@jp.sony.com> Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Diffstat (limited to 'arch')
-rw-r--r--arch/powerpc/platforms/cell/spufs/switch.c13
1 files changed, 4 insertions, 9 deletions
diff --git a/arch/powerpc/platforms/cell/spufs/switch.c b/arch/powerpc/platforms/cell/spufs/switch.c
index d4dea187484..c970b14bf7d 100644
--- a/arch/powerpc/platforms/cell/spufs/switch.c
+++ b/arch/powerpc/platforms/cell/spufs/switch.c
@@ -180,7 +180,7 @@ static inline void save_mfc_cntl(struct spu_state *csa, struct spu *spu)
case MFC_CNTL_SUSPEND_COMPLETE:
if (csa) {
csa->priv2.mfc_control_RW =
- in_be64(&priv2->mfc_control_RW) |
+ MFC_CNTL_SUSPEND_MASK |
MFC_CNTL_SUSPEND_DMA_QUEUE;
}
break;
@@ -190,9 +190,7 @@ static inline void save_mfc_cntl(struct spu_state *csa, struct spu *spu)
MFC_CNTL_SUSPEND_DMA_STATUS_MASK) ==
MFC_CNTL_SUSPEND_COMPLETE);
if (csa) {
- csa->priv2.mfc_control_RW =
- in_be64(&priv2->mfc_control_RW) &
- ~MFC_CNTL_SUSPEND_DMA_QUEUE;
+ csa->priv2.mfc_control_RW = 0;
}
break;
}
@@ -251,11 +249,8 @@ static inline void save_mfc_decr(struct spu_state *csa, struct spu *spu)
* Read MFC_CNTL[Ds]. Update saved copy of
* CSA.MFC_CNTL[Ds].
*/
- if (in_be64(&priv2->mfc_control_RW) & MFC_CNTL_DECREMENTER_RUNNING) {
- csa->priv2.mfc_control_RW |= MFC_CNTL_DECREMENTER_RUNNING;
- } else {
- csa->priv2.mfc_control_RW &= ~MFC_CNTL_DECREMENTER_RUNNING;
- }
+ csa->priv2.mfc_control_RW |=
+ in_be64(&priv2->mfc_control_RW) & MFC_CNTL_DECREMENTER_RUNNING;
}
static inline void halt_mfc_decr(struct spu_state *csa, struct spu *spu)