memory-mapped device access (manifested by an apparent wedging of the
PCI bus):
- If cpu_class == CPUCLASS_486, disable memory-mapped PCI device access,
leaving only i/o-mapped access enabled.
- Provide a patchable kernel variable (i486_pci_mem_enabled) and a kernel
option (I486_PCI_MEM_ENABLED) to re-enable it.
during auto-configuration (`cold'), raise interrupt level to splhigh
and return, instead of reporting a stray interrupt.
2. In cpu_switch(), start running a newly selected proces at splclock()
instead of the saved IPL, allowing high-priority interrupts in
ctx_alloc() which can take many cycles to install a new context
(especially on the two-level sun4c MMU).
deal with cheap CD-ROMs and other devices that do not appear to have
any way to enable parity generation. In the future, it might be nice
to have this configurable on a per-device basis with back-to-back
parity errors automatically disabling parity for the device. That
would require some MI changes.
* Handle unaligned and odd-length transfers.
This could probably be handled better in the future.
if the break instruction is still there. This works around a problem with
the software single step in DDB not recognizing the temporary breakpoint
set to emulate the single step.
Fix cursor sprite for X11 startup/exit:
* add cursor on/off functions.
* Default cursor state is off (for framebuffer console).
* Turn off cursor in each driver's xxxCursorInit() entrypoint.
* Turn on cursor at the end of each driver's xxxLoadCursor() entrypoint.
works with X11R5 servers shipped with NetBSD 1.3.
* add cursor on/off functions.
* Default cursor state is off (for framebuffer console).
* Turn off cursor in each driver's xxxCursorInit() entrypoint.
* Turn on cursor at the end of each driver's xxxLoadCursor() entrypoint.
works with X11R5 servers shipped with NetBSD 1.3.
tech-kern. Reported by Sean Davidson to cause erroneous doubling of
keyboard input on a 5000/50 under load.
Increasing the DELAY() from 2 to 30 doesn't help. Remove it for the
1.3 release. May cause problems with low-speed serial input, but
console keyboards work properly.
thorpej