NetBSD/sys/arch/sun3/dev
thorpej eb20bbc780 Change the semantics of splsoftclock() to be like other spl*() functions,
that is priority is rasied.  Add a new spllowersoftclock() to provide the
atomic drop-to-softclock semantics that the old splsoftclock() provided,
and update calls accordingly.

This fixes a problem with using the "rnd" pseudo-device from within
interrupt context to extract random data (e.g. from within the softnet
interrupt) where doing so would incorrectly unblock interrupts (causing
all sorts of lossage).

XXX 4 platforms do not have priority-raising capability: newsmips, sparc,
XXX sparc64, and VAX.  This platforms still have this bug until their
XXX spl*() functions are fixed.
1999-08-05 18:08:08 +00:00
..
am9516.h
bt_subr.c
btreg.h
btvar.h
bw2.c
bw2reg.h
cg2.c
cg4.c
cg4reg.h
dma.c Make "dma" a real device so it can attach before esp. 1999-04-08 04:46:41 +00:00
dmareg.h Make "dma" a real device so it can attach before esp. 1999-04-08 04:46:41 +00:00
dmavar.h Make "dma" a real device so it can attach before esp. 1999-04-08 04:46:41 +00:00
eeprom.c
esp.c Make "dma" a real device so it can attach before esp. 1999-04-08 04:46:41 +00:00
fb.c
fbvar.h
fd.c
fdreg.h
fdvar.h
i82586.h
if_ie_obio.c
if_ie_sebuf.c
if_ie_vme.c
if_ie.c Copy alignment fix from dev/ic/i82586.c (Um, this extra copy should die, 1999-05-21 21:33:59 +00:00
if_iereg.h
if_ievar.h
if_le.c
kd.c Change the semantics of splsoftclock() to be like other spl*() functions, 1999-08-05 18:08:08 +00:00
md_root.c Fix warning 1999-05-08 18:46:17 +00:00
memerr.c
memerr.h
p4reg.h
README
sebuf.c Better implementation of driver "match" function, 1999-04-09 04:26:27 +00:00
sereg.h
sevar.h
si_obio.c
si_sebuf.c Better implementation of driver "match" function, 1999-04-09 04:26:27 +00:00
si_vme.c
si.c
sireg.h
sivar.h
xd.c
xdreg.h
xdvar.h
xio.h
xy.c
xyreg.h
xyvar.h
zs_cons.h
zs_kgdb.c
zs.c

$NetBSD: README,v 1.3 1996/11/19 20:58:32 gwr Exp $

NetBSD/sun3 supports the following busses:

Bus:
mainbus -  An imaginary bus on which the other busses all reside.

obio	-  Devices on the motherboard, accessed by having their "registers"
	   mapped into the kernel's virtual address space
obmem	-  Devices on the motherboard that are mapped into main memory
	   by the hardware.  Only true of some framebuffers.
vmes	-  VME D16 space
vmel	-  VME D32 space

Devices supported:

'obio' Bus: 
Device	Type    Description
---------------------------------------------------------------------------
zs	CHAR	zilog 8530 serial ports; used for serial ports, keybd, mouse
le	IFNET	lance ethernet driver

XXX - very much incomplete...