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authorDmitry Torokhov <dmitry.torokhov@gmail.com>2008-08-08 16:21:02 -0400
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2008-08-08 16:21:02 -0400
commite4ddcb0a6bf04d53ce77b4eb87bbbb32c4261d11 (patch)
treed27d2fea50a384d97aa2d0cf5c8657c916f761d4 /arch/sparc64/kernel/irq.c
parentf2afa7711f8585ffc088ba538b9a510e0d5dca12 (diff)
parent6e86841d05f371b5b9b86ce76c02aaee83352298 (diff)
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Merge commit 'v2.6.27-rc1' into for-linus
Diffstat (limited to 'arch/sparc64/kernel/irq.c')
-rw-r--r--arch/sparc64/kernel/irq.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/arch/sparc64/kernel/irq.c b/arch/sparc64/kernel/irq.c
index b441a26b73b..c481673d249 100644
--- a/arch/sparc64/kernel/irq.c
+++ b/arch/sparc64/kernel/irq.c
@@ -621,8 +621,9 @@ unsigned int sun4v_build_irq(u32 devhandle, unsigned int devino)
unsigned int sun4v_build_virq(u32 devhandle, unsigned int devino)
{
struct irq_handler_data *data;
- struct ino_bucket *bucket;
unsigned long hv_err, cookie;
+ struct ino_bucket *bucket;
+ struct irq_desc *desc;
unsigned int virt_irq;
bucket = kzalloc(sizeof(struct ino_bucket), GFP_ATOMIC);
@@ -643,6 +644,13 @@ unsigned int sun4v_build_virq(u32 devhandle, unsigned int devino)
if (unlikely(!data))
return 0;
+ /* In order to make the LDC channel startup sequence easier,
+ * especially wrt. locking, we do not let request_irq() enable
+ * the interrupt.
+ */
+ desc = irq_desc + virt_irq;
+ desc->status |= IRQ_NOAUTOEN;
+
set_irq_chip_data(virt_irq, data);
/* Catch accidental accesses to these things. IMAP/ICLR handling