diff options
| author | Jeremy Kerr <jk@ozlabs.org> | 2007-09-19 14:38:12 +1000 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2007-09-19 15:12:17 +1000 |
| commit | 05a059f3296c07a7455290dd8188b23ecb380fc7 (patch) | |
| tree | 037941b01c1d6ce683c2e20228a49db5fa2b3020 /arch/powerpc/platforms | |
| parent | 4ec3c3d08d4de744b7a1d885529d1e040ec747a4 (diff) | |
[POWERPC] spufs: Fix restore_decr_wrapped() to match CBE Handbook
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>
Diffstat (limited to 'arch/powerpc/platforms')
| -rw-r--r-- | arch/powerpc/platforms/cell/spufs/switch.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/arch/powerpc/platforms/cell/spufs/switch.c b/arch/powerpc/platforms/cell/spufs/switch.c index 25066199150..de7e5ee451d 100644 --- a/arch/powerpc/platforms/cell/spufs/switch.c +++ b/arch/powerpc/platforms/cell/spufs/switch.c @@ -1559,15 +1559,15 @@ static inline void restore_decr_wrapped(struct spu_state *csa, struct spu *spu) * "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_chnldata_RW[0] |= 0x20; } static inline void restore_ch_part1(struct spu_state *csa, struct spu *spu) |