From 7fc1a1abc1eca1278d6d37ec54b72005d15b5c1e Mon Sep 17 00:00:00 2001 From: Ivan Kokshaysky Date: Mon, 16 Apr 2007 22:53:21 -0700 Subject: [PATCH] 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 Cc: Richard Henderson Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/alpha/kernel/sys_nautilus.c | 6 ++++++ arch/alpha/kernel/sys_sx164.c | 2 +- 2 files changed, 7 insertions(+), 1 deletion(-) diff --git a/arch/alpha/kernel/sys_nautilus.c b/arch/alpha/kernel/sys_nautilus.c index e7594a7cf58..920196bcbb6 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 94ad68b7c0a..41d4ad4c7c4 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 */ -- 2.41.1