diff options
| author | Ivan Kokshaysky <ink@jurassic.park.msu.ru> | 2007-04-16 22:53:21 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-04-17 16:36:27 -0700 |
| commit | 7fc1a1abc1eca1278d6d37ec54b72005d15b5c1e (patch) | |
| tree | 4da6c9a6b02bd4d11be3cfbe9090382e68d21235 /arch/alpha/kernel/sys_nautilus.c | |
| parent | 1b75b05b73cdefd1d10074e9dad60812f9731a5e (diff) | |
alpha: more fixes for specific machine types
arch/alpha/kernel/sys_sx164.c
Earlier firmware revisions need MVI fix as well.
arch/alpha/kernel/sys_nautilus.c
On UP1500 firmware reports wrong AGP IRQ (10 instead of 5).
This causes interrupt storm if there is a PCI device that
uses IRQ 5.
Signed-off-by: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Richard Henderson <rth@twiddle.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/alpha/kernel/sys_nautilus.c')
| -rw-r--r-- | arch/alpha/kernel/sys_nautilus.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/alpha/kernel/sys_nautilus.c b/arch/alpha/kernel/sys_nautilus.c index e7594a7cf585..920196bcbb61 100644 --- a/arch/alpha/kernel/sys_nautilus.c +++ b/arch/alpha/kernel/sys_nautilus.c @@ -70,6 +70,12 @@ nautilus_map_irq(struct pci_dev *dev, u8 slot, u8 pin) /* Preserve the IRQ set up by the console. */ u8 irq; + /* UP1500: AGP INTA is actually routed to IRQ 5, not IRQ 10 as + console reports. Check the device id of AGP bridge to distinguish + UP1500 from UP1000/1100. Note: 'pin' is 2 due to bridge swizzle. */ + if (slot == 1 && pin == 2 && + dev->bus->self && dev->bus->self->device == 0x700f) + return 5; pci_read_config_byte(dev, PCI_INTERRUPT_LINE, &irq); return irq; } |