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authorIvan Kokshaysky <ink@jurassic.park.msu.ru>2007-04-16 22:53:21 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-04-17 16:36:27 -0700
commit7fc1a1abc1eca1278d6d37ec54b72005d15b5c1e (patch)
tree4da6c9a6b02bd4d11be3cfbe9090382e68d21235 /arch/alpha
parentalpha: fixes for specific machine types (diff)
downloadlinux-dev-7fc1a1abc1eca1278d6d37ec54b72005d15b5c1e.tar.xz
linux-dev-7fc1a1abc1eca1278d6d37ec54b72005d15b5c1e.zip
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')
-rw-r--r--arch/alpha/kernel/sys_nautilus.c6
-rw-r--r--arch/alpha/kernel/sys_sx164.c2
2 files changed, 7 insertions, 1 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;
}
diff --git a/arch/alpha/kernel/sys_sx164.c b/arch/alpha/kernel/sys_sx164.c
index 94ad68b7c0ae..41d4ad4c7c44 100644
--- a/arch/alpha/kernel/sys_sx164.c
+++ b/arch/alpha/kernel/sys_sx164.c
@@ -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 */