From ef8034d01a080e81488e9cf74052acf1e2a37bd0 Mon Sep 17 00:00:00 2001 From: Jeremy Kerr Date: Fri, 7 Sep 2007 18:28:27 +1000 Subject: [PATCH] [POWERPC] cell/PS3: Always set master run control bit in mfc_sr1_set 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 Acked-by: Masato Noguchi Signed-off-by: Paul Mackerras --- arch/powerpc/platforms/ps3/spu.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/powerpc/platforms/ps3/spu.c b/arch/powerpc/platforms/ps3/spu.c index ac2a4b8a4c14..d1630a074acf 100644 --- a/arch/powerpc/platforms/ps3/spu.c +++ b/arch/powerpc/platforms/ps3/spu.c @@ -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; -- 2.30.2