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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>
This commit is contained in:
Ivan Kokshaysky 2007-04-16 22:53:21 -07:00 committed by Linus Torvalds
parent 1b75b05b73
commit 7fc1a1abc1
2 changed files with 7 additions and 1 deletions
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6
arch/alpha/kernel/sys_nautilus.c
View File

@ -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;
}

2
arch/alpha/kernel/sys_sx164.c
View File

@ -132,7 +132,7 @@ sx164_init_arch(void)
if (amask(AMASK_MAX) != 0
&& alpha_using_srm
&& (cpu->pal_revision & 0xffff) == 0x117) {
&& (cpu->pal_revision & 0xffff) <= 0x117) {
__asm__ __volatile__(
"lda $16,8($31)\n"
"call_pal 9\n" /* Allow PALRES insns in kernel mode */