Copy stable/9 to releng/9.3 as part of the 9.3-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

MFC r232261 by tijl

Copy amd64 _types.h to x86 and merge with i386 _types.h. Replace existing
amd64/i386/pc98 _types.h with stubs.

MFC (part of) r235939 by obrien

Consitently use "__LP64__".

Sponsored by: The FreeBSD Foundation

Copy head to stable/9 as part of 9.0-RELEASE release cycle.

Approved by: re (implicit)

By popular demand, move __HAVE_ACPI and __PCI_REROUTE_INTERRUPT into
param.h. Per request, I've placed these just after the
_NO_NAMESPACE_POLLUTION ifndef. I've not renamed anything yet, but
may since we don't need the __.

Submitted by: bde, jhb, scottl, many others.

Define __HAVE_ACPI and/or __PCI_REROUTE_INTERRUPT, as appropriate for
each platform. These will be used in the pci code in preference to
the complicated #ifdefs we have there now.

Add reach-over include files to read i386/foo.h. In time, the pc98
specific code will migrate to these files to augment or replace the
version in i386/include and/or i386/linux. This should, in the
fullness of time, allow many of the #ifdef PC98 in the tree.

# These files are in the public domain because there is insufficient
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OK'd in principle by: nyan@