diff options
| author | Yinghai Lu <yhlu.kernel@gmail.com> | 2008-08-19 20:50:22 -0700 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-10-16 16:52:52 +0200 |
| commit | 6d50bc26836e16a9589e0b128d527c29e30d722a (patch) | |
| tree | 8fd02d634b4cdf618e0328813b33c3a357015547 /drivers/pci/htirq.c | |
| parent | e420dfb40c453a9760b86c7f338052bdb4dfa755 (diff) | |
| download | lwn-6d50bc26836e16a9589e0b128d527c29e30d722a.tar.gz lwn-6d50bc26836e16a9589e0b128d527c29e30d722a.zip | |
x86: use 28 bits irq NR for pci msi/msix and ht
also print out irq no in /proc/interrups and /proc/stat in hex, so could
tell bus/dev/func.
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'drivers/pci/htirq.c')
| -rw-r--r-- | drivers/pci/htirq.c | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/drivers/pci/htirq.c b/drivers/pci/htirq.c index 279c940a0039..7c5aef13fcdb 100644 --- a/drivers/pci/htirq.c +++ b/drivers/pci/htirq.c @@ -82,6 +82,18 @@ void unmask_ht_irq(unsigned int irq) write_ht_irq_msg(irq, &msg); } +static unsigned int build_irq_for_pci_dev(struct pci_dev *dev) +{ + unsigned int irq; + + irq = dev->bus->number; + irq <<= 8; + irq |= dev->devfn; + irq <<= 12; + + return irq; +} + /** * __ht_create_irq - create an irq and attach it to a device. * @dev: The hypertransport device to find the irq capability on. @@ -97,7 +109,8 @@ int __ht_create_irq(struct pci_dev *dev, int idx, ht_irq_update_t *update) u32 data; int max_irq; int pos; - int irq; + unsigned int irq; + unsigned int irq_want; pos = pci_find_ht_capability(dev, HT_CAPTYPE_IRQ); if (!pos) @@ -125,8 +138,13 @@ int __ht_create_irq(struct pci_dev *dev, int idx, ht_irq_update_t *update) cfg->msg.address_lo = 0xffffffff; cfg->msg.address_hi = 0xffffffff; + irq_want= build_irq_for_pci_dev(dev); +#ifdef CONFIG_HAVE_SPARSE_IRQ + irq = create_irq_nr(irq_want + idx); +#else irq = create_irq(); - if (irq < 0) { +#endif + if (irq == 0) { kfree(cfg); return -EBUSY; } |