bus support want to attach to should be declared in conf/files, so that
hairy ordering constraints on the inclusions of busses' "files" files
in files.{MACHINE} are avoided. isabus, pcibus attributes will go here later.
The problem is, for instance, that there are some devices in files.isa
currently which require that 'pci' be defined, but there are some PCI
devices (e.g. 'sio' on the Alpha) that provide isabus interfaces, i.e.
'isa' busses attach to them. Unless the the bus-attachment attributes
are here, it's impossible to declare the busses' files and attribute
dependencies in a machine-independent way.
argument list. This allows easy 'submatching', which will eliminate a fair
bit of slightly tricky duplicated code from various busses. config_found()
is now a #define in sys/device.h, which invokes config_found_sm().
and the "kernel.tar.Z" distribution on louie.udel.edu, which is older than
xntp 3.4y or 3.5a, but contains newer kernel source fragments.
This commit adds support for a new kernel configuration option, NTP.
If NTP is selected, then the system clock should be run at "HZ", which
must be defined at compile time to be one value from:
60, 64, 100, 128, 256, 512, 1024.
Powers of 2 are ideal; 60 and 100 are supported but are marginally less
accurate.
If NTP is not configured, there should be no change in behavior relative
to pre-NTP kernels.
These changes have been tested extensively with xntpd 3.4y on a decstation;
almost identical kernel mods work on an i386. No pulse-per-second (PPS)
line discipline support is included, due to unavailability of hardware
to test it.
With this in-kernel PLL support for NetBSD, both xntp 3.4y and xntp
3.5a user-level code need minor changes. xntp's prototype for
syscall() is correct for FreeBSD, but not for NetBSD.
planned changes in other sections of code.
(2) expands the use of config_found() in tcattach() in-line, so that
tcsubmatch can be invoked there, rather than being invoked by
individual drivers.
(3) tcbus_attach_args now includes a turbochannel speed flag.
(4) compare a string in tcbus_attach_args against tc bus driver name,
to better allow attachment of multiple busses to the same parent.
versions work correctly; at some point between then and the immediately
preceding revisions, the "stylistic" changes to one (or both) stdarg.h
and varargs.h broke passing doubles to printf().
a dca-specific constant. For now, hardwire standalone DCA console
at select code 9 (which is what the old constant expanded to). Really
should make the way the bootblock console is probed look just like how
the kernel console is probed.
cgd