Based on an original patch from Masato Noguchi
<Masato.Noguchi@jp.sony.com>.
We're currently not restoring the SPE decrementer as specified by the
CBE handbook. This change fixes our implementation to match, and makes
the function read more like the docs.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
* "wrapped" flag is set, OR in a '1' to
* CSA.SPU_Event_Status[Tm].
*/
* "wrapped" flag is set, OR in a '1' to
* CSA.SPU_Event_Status[Tm].
*/
- if (csa->lscsa->decr_status.slot[0] & SPU_DECR_STATUS_WRAPPED) {
- csa->spu_chnldata_RW[0] |= 0x20;
- }
- if ((csa->lscsa->decr_status.slot[0] & SPU_DECR_STATUS_WRAPPED) &&
- (csa->spu_chnlcnt_RW[0] == 0 &&
- ((csa->spu_chnldata_RW[2] & 0x20) == 0x0) &&
- ((csa->spu_chnldata_RW[0] & 0x20) != 0x1))) {
+ if (!(csa->lscsa->decr_status.slot[0] & SPU_DECR_STATUS_WRAPPED))
+ return;
+
+ if ((csa->spu_chnlcnt_RW[0] == 0) &&
+ (csa->spu_chnldata_RW[1] & 0x20) &&
+ !(csa->spu_chnldata_RW[0] & 0x20))
csa->spu_chnlcnt_RW[0] = 1;
csa->spu_chnlcnt_RW[0] = 1;
+
+ csa->spu_chnldata_RW[0] |= 0x20;
}
static inline void restore_ch_part1(struct spu_state *csa, struct spu *spu)
}
static inline void restore_ch_part1(struct spu_state *csa, struct spu *spu)