freebsd-dev/sys/amd64
Mike Smith 642ba07a24 If we are running in APIC_IO mode, pretend that we didn't see the BIOS
reporting an AT PIC.  We do this because otherwise the PIC will claim
IRQ 2 in an unshareable mode, preventing other devices from legitimately
using it.

For symmetry, in !APIC_IO mode, ignore the APIC if it's reported.

This is a hack; a better solution would have the PIC's driver release
the IRQ if it was not going to be active.
2000-05-17 19:44:16 +00:00
..
amd64 If we are running in APIC_IO mode, pretend that we didn't see the BIOS 2000-05-17 19:44:16 +00:00
conf Change to comments only: spell FreeBSD.org correctly 2000-05-13 11:21:19 +00:00
include When using _asm{} in GCC, one must specify the operand's size if one 2000-05-10 01:15:55 +00:00
isa 1. `movl' is for use with 32-bit operands. Do NOT use it with 16-bit 2000-05-10 01:24:23 +00:00
pci Don't assume that the PCI BIOS is going to clear the unused bits in %ecx 2000-05-04 17:44:55 +00:00
Makefile Add soft updates to the set of things being tagged. Syntax cleanup. 2000-01-27 01:22:06 +00:00