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authorRalf Baechle <ralf@linux-mips.org>2007-09-21 17:13:55 +0100
committerRalf Baechle <ralf@linux-mips.org>2007-09-24 18:13:02 +0100
commit1146fe30504a1edd8a434f500e1be139492570c9 (patch)
treeba6dec916c23506580be7a5756dd583105da41ba /arch/mips/kernel/irq-msc01.c
parent7bae705ef2c2daac1993de03e5be93b5c300fc5e (diff)
[MIPS] SMTC: Make ack_bad_irq() safe with no IM backstop.
Issue reported and original patch by Kevin Kissel, cleaner (imho) implementation by me. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/kernel/irq-msc01.c')
-rw-r--r--arch/mips/kernel/irq-msc01.c10
1 files changed, 2 insertions, 8 deletions
diff --git a/arch/mips/kernel/irq-msc01.c b/arch/mips/kernel/irq-msc01.c
index 410868b5ea5..1ecdd50bfc6 100644
--- a/arch/mips/kernel/irq-msc01.c
+++ b/arch/mips/kernel/irq-msc01.c
@@ -52,11 +52,8 @@ static void level_mask_and_ack_msc_irq(unsigned int irq)
mask_msc_irq(irq);
if (!cpu_has_veic)
MSCIC_WRITE(MSC01_IC_EOI, 0);
-#ifdef CONFIG_MIPS_MT_SMTC
/* This actually needs to be a call into platform code */
- if (irq_hwmask[irq] & ST0_IM)
- set_c0_status(irq_hwmask[irq] & ST0_IM);
-#endif /* CONFIG_MIPS_MT_SMTC */
+ smtc_im_ack_irq(irq);
}
/*
@@ -73,10 +70,7 @@ static void edge_mask_and_ack_msc_irq(unsigned int irq)
MSCIC_WRITE(MSC01_IC_SUP+irq*8, r | ~MSC01_IC_SUP_EDGE_BIT);
MSCIC_WRITE(MSC01_IC_SUP+irq*8, r);
}
-#ifdef CONFIG_MIPS_MT_SMTC
- if (irq_hwmask[irq] & ST0_IM)
- set_c0_status(irq_hwmask[irq] & ST0_IM);
-#endif /* CONFIG_MIPS_MT_SMTC */
+ smtc_im_ack_irq(irq);
}
/*