Make eisa_machdep build without NIOAPIC > 0 by extracting irq definition.

fix typos in word "functions" in comments, mainly s/fuctions/functions/.

fix i386 build for MSI/MSI-X support code.

branches: 1.39.6;
make pci_intr_string and eisa_intr_string take a buffer and a length
instead of relying in local static storage.

branches: 1.38.2;
port-i386/47907: kernel trap when using EISA with I/O APIC on i386

Patch from Felix Deichmann.

XXX pullup netbsd-6

branches: 1.37.2; 1.37.8; 1.37.12;
Add bus_dma overrides. From dyoung

use c99 struct initializers

#include <sys/bus.h> instead of <machine/bus.h>.

Don't #include <sys/extent.h> any more because this module doesn't use
struct extent any more.

Delete unused functions eisa_mem_alloc() and eisa_mem_free().

branches: 1.32.10;
struct device * -> device_t

branches: 1.31.2;
Add a 'known_mpsafe' argument to intr_establish().

branches: 1.30.2;
Remove clause 3 and 4 from TNF licenses

branches: 1.29.42; 1.29.44; 1.29.46;
Fix lossage from boolean_t -> bool and updated x86 bus_dma.

branches: 1.28.4;
__unused removal on arguments; approved by core.

- sprinkle __unused on function decls.
- fix a couple of unused bugs
- no more -Wno-unused for i386

branches: 1.26.14; 1.26.16;
Use aprint_*().

branches: 1.25.2; 1.25.4; 1.25.6;
merge ktrace-lwp.

branches: 1.24.2;
tweak x86 bus_dma code so that it can be used by xen port.

- distinguish paddr_t and bus_addr_t.
for xen, use bus_addr_t in the sense of machine address.
- move _X86_BUS_DMA_PRIVATE part of bus.h into bus_private.h.
- remove special handling of xen_shm. we can always grab
machine address from pte.

branches: 1.23.4;
de-__P, partially ANSIfy

branches: 1.22.4; 1.22.6;
sprintf -> snprintf

* keep track of PCI buses that aren't known by firmware, but are found
by NetBSD
* use this info in in intr_find_mpmapping
* get rid of the last argument to intr_find_mpmapping, it was redundant

Add hooks and structures to allow the MP table intr mapping code a
better shot at finding a mapping. For PCI interrupts, if a bus
has no mappings, try its parent, with the swizzled pin, and the
bridge's device number.

branches: 1.19.2;
Adapt tag initialisation to the new fields that were added recently.

Adapt for i386/x86 change.

New interrupt code. The basic idea behind it is to hide the differences
in interrupt controllers in struct pic, and try to keep as much
common code as possible. At the lowest (asm) level, this is done
with CPP macros.

The main structure is now struct intrsource, describing an established
interrupt line, of any kind (soft/hard local apic/legacy apic/IO apic).
For quick masking, there may be a maximum of 32 sources per CPU.
Sources can be assigned to any CPU in the MP case, though currently they
all go to the boot CPU.

Merge Bill Sommerfeld's i386 MP branch. This code has some known
caveats, but works quite well in a lot of MP cases, and all
UP cases that I have tested. Parts of this will hopefully be
reworked in the not-too-distant future.

remove trailing \n in panic(). approved perry.

add RCSID

branches: 1.13.2;
delint: don't try & return something from void eisa_intr_disestablish()

branches: 1.12.2;
Add functions to read EISA configuration data for MEM, IRQ, DMA, and IO.

XXX Just error stubs on the i386 right now -- someone needs to write
XXX EISA BIOS code for i386.

branches: 1.11.2;
Implement the more flexiable `evcnt' interface as discussed (briefly) on
tech-kern and now documented in evcnt(9).

branches: 1.10.14; 1.10.22; 1.10.24;
EISA and PCI do not require bouncing; specify a bounce threshold of 0.

Garbage-collect the DMA tag's "_cookie" member; it's not used for anything.

Erg, typi.

Notify other machine-dependent code that the EISA bus has been configured
in the attach hook.

Pull thorpej-bus-dma branch into mainline.

branches: 1.5.8;
Implement eisa_mem_{alloc,free}(), a method for allocating/freeing
EISA bus physical address space.

This i386 implementation allocates system physical address space
after the end of RAM.

backout previous kprintf changes

printf -> kprintf, sprintf -> ksprintf

update for addition of a machine-dependent cookie as the first argument
to isa_intr_{,dis}establish().

make the EISA code look a bit more like the PCI code, in the way
the bus is configured, interrupts are handled, etc. define
eisa_chipset_tag_t and eisa_intr_handle_t types, and the following
functions:
eisa_attach_hook()
eisa_maxslots()
eisa_intr_map()
eisa_intr_string()
eisa_intr_establish()
eisa_intr_disestablish()
to do the right things for the i386.