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authorJosh Boyer <jwboyer@linux.vnet.ibm.com>2007-05-01 06:38:11 +1000
committerPaul Mackerras <paulus@samba.org>2007-05-02 20:04:30 +1000
commit5cddd2e355d0df400782dae80722945c8197b1c5 (patch)
treeb920ea2a7e1c8b57d6c6900699fbef0edfd0c187
parent0f21712df1cbf21d35da8287331d64ff75ca7b01 (diff)
downloadop-kernel-dev-5cddd2e355d0df400782dae80722945c8197b1c5.zip
op-kernel-dev-5cddd2e355d0df400782dae80722945c8197b1c5.tar.gz
[POWERPC] Fix spurious vectors on weird MPIC
The weird TSI 10x MPIC needs an EOI after getting a spurious vector. This patch uses the existing MPIC_SPV_EOI flag to fix this issue. Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
-rw-r--r--arch/powerpc/sysdev/mpic.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/arch/powerpc/sysdev/mpic.c b/arch/powerpc/sysdev/mpic.c
index 0b84b7c..57b1208 100644
--- a/arch/powerpc/sysdev/mpic.c
+++ b/arch/powerpc/sysdev/mpic.c
@@ -1333,8 +1333,11 @@ unsigned int mpic_get_one_irq(struct mpic *mpic)
#ifdef DEBUG_LOW
DBG("%s: get_one_irq(): %d\n", mpic->name, src);
#endif
- if (unlikely(src == mpic->spurious_vec))
+ if (unlikely(src == mpic->spurious_vec)) {
+ if (mpic->flags & MPIC_SPV_EOI)
+ mpic_eoi(mpic);
return NO_IRQ;
+ }
return irq_linear_revmap(mpic->irqhost, src);
}
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