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freebsd/sys/amd64
John Baldwin 4184900911 MD support for PCI Message Signalled Interrupts on amd64 and i386:
- Add a new apic_alloc_vectors() method to the local APIC support code
  to allocate N contiguous IDT vectors (aligned on a M >= N boundary).
  This function is used to allocate IDT vectors for a group of MSI
  messages.
- Add MSI and MSI-X PICs.  The PIC code here provides methods to manage
  edge-triggered MSI messages as x86 interrupt sources.  In addition to
  the PIC methods, msi.c also includes methods to allocate and release
  MSI and MSI-X messages.  For x86, we allow for up to 128 different
  MSI IRQs starting at IRQ 256 (IRQs 0-15 are reserved for ISA IRQs,
  16-254 for APIC PCI IRQs, and IRQ 255 is reserved).
- Add pcib_(alloc|release)_msi[x]() methods to the MD x86 PCI bridge
  drivers to bubble the request up to the nexus driver.
- Add pcib_(alloc|release)_msi[x]() methods to the x86 nexus drivers that
  ask the MSI PIC code to allocate resources and IDT vectors.

MFC after:	2 months
2006-11-13 22:23:34 +00:00
..
acpica
amd64 MD support for PCI Message Signalled Interrupts on amd64 and i386: 2006-11-13 22:23:34 +00:00
compile
conf Remove the KDTRACE option again because of the complaints about having 2006-11-04 23:50:12 +00:00
ia32
include MD support for PCI Message Signalled Interrupts on amd64 and i386: 2006-11-13 22:23:34 +00:00
isa
linux32 Regen. 2006-11-11 21:49:08 +00:00
pci MD support for PCI Message Signalled Interrupts on amd64 and i386: 2006-11-13 22:23:34 +00:00
Makefile