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| author | David S. Miller <davem@sunset.davemloft.net> | 2006-02-16 14:37:05 -0800 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2006-03-20 01:13:17 -0800 |
| commit | 22780e23c629303474797d17e7f09ad7721ef55b (patch) | |
| tree | e005c6475aaeb61a6db0d43424c212d89f77dc40 /arch | |
| parent | 94f8762db9a80ed34252e9fe5fa38be87bb7826b (diff) | |
| download | kernel_samsung_tuna-22780e23c629303474797d17e7f09ad7721ef55b.zip kernel_samsung_tuna-22780e23c629303474797d17e7f09ad7721ef55b.tar.gz kernel_samsung_tuna-22780e23c629303474797d17e7f09ad7721ef55b.tar.bz2 | |
[SPARC64]: Set dummy bucket->{imap,iclr} unique on SUN4V.
So that free_irq() disable's the IRQ correctly.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/sparc64/kernel/irq.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/arch/sparc64/kernel/irq.c b/arch/sparc64/kernel/irq.c index e1729e5..580b4de 100644 --- a/arch/sparc64/kernel/irq.c +++ b/arch/sparc64/kernel/irq.c @@ -143,7 +143,6 @@ void enable_irq(unsigned int irq) { struct ino_bucket *bucket = __bucket(irq); unsigned long imap; - unsigned long tid; imap = bucket->imap; if (imap == 0UL) @@ -169,6 +168,8 @@ void enable_irq(unsigned int irq) printk("sun4v_intr_setstate(%x): " "err(%d)\n", ino, err); } else { + unsigned long tid; + if (tlb_type == cheetah || tlb_type == cheetah_plus) { unsigned long ver; @@ -342,9 +343,12 @@ unsigned int sun4v_build_irq(u32 devhandle, unsigned int devino, int pil, unsign /* Catch accidental accesses to these things. IMAP/ICLR handling * is done by hypervisor calls on sun4v platforms, not by direct * register accesses. + * + * But we need to make them look unique for the disable_irq() logic + * in free_irq(). */ - bucket->imap = ~0UL; - bucket->iclr = ~0UL; + bucket->imap = ~0UL - sysino; + bucket->iclr = ~0UL - sysino; bucket->pil = pil; bucket->flags = flags; @@ -547,7 +551,6 @@ void free_irq(unsigned int irq, void *dev_id) bucket = __bucket(irq); if (bucket != &pil0_dummy_bucket) { struct irq_desc *desc = bucket->irq_info; - unsigned long imap = bucket->imap; int ent, i; for (i = 0; i < MAX_IRQ_DESC_ACTION; i++) { @@ -560,6 +563,8 @@ void free_irq(unsigned int irq, void *dev_id) } if (!desc->action_active_mask) { + unsigned long imap = bucket->imap; + /* This unique interrupt source is now inactive. */ bucket->flags &= ~IBF_ACTIVE; @@ -803,7 +808,6 @@ EXPORT_SYMBOL(probe_irq_off); static int retarget_one_irq(struct irqaction *p, int goal_cpu) { struct ino_bucket *bucket = get_ino_in_irqaction(p) + ivector_table; - unsigned long imap = bucket->imap; while (!cpu_online(goal_cpu)) { if (++goal_cpu >= NR_CPUS) @@ -816,6 +820,7 @@ static int retarget_one_irq(struct irqaction *p, int goal_cpu) sun4v_intr_settarget(ino, goal_cpu); sun4v_intr_setenabled(ino, HV_INTR_ENABLED); } else { + unsigned long imap = bucket->imap; unsigned int tid; if (tlb_type == cheetah || tlb_type == cheetah_plus) { |