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[POWERPC] cell/PS3: Always set master run control bit in mfc_sr1_set

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At present, running any SPE program on the ps3 will trigger a BUG_ON
when spufs_run_spu tries to clear the master run control bit, as lv1
does not make the master run control available to Linux.

This change makes SPE apps work again by disabling changes to the
master run control on PS3.  Although we don't have the facility to
disable a SPE with supervisor-level privileges, it's better than
hitting the BUG_ON unconditionally.

Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Acked-by: Masato Noguchi <Masato.Noguchi@jp.sony.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Jeremy Kerr 2007-09-07 18:28:27 +10:00 committed by Paul Mackerras
parent b7f90a406f
commit ef8034d01a
1 changed files with 2 additions and 0 deletions
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2
arch/powerpc/platforms/ps3/spu.c
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@ -505,6 +505,8 @@ static void mfc_sr1_set(struct spu *spu, u64 sr1)
static const u64 allowed = ~(MFC_STATE1_LOCAL_STORAGE_DECODE_MASK
| MFC_STATE1_PROBLEM_STATE_MASK);
sr1 |= MFC_STATE1_MASTER_RUN_CONTROL_MASK;
BUG_ON((sr1 & allowed) != (spu_pdata(spu)->cache.sr1 & allowed));
spu_pdata(spu)->cache.sr1 = sr1;