interrupt handlers into intrtab[] array, rather than the idea of devices
in 'psuedo' TURBOchannel slots.
- Nuke symbols for psuedo TC slots.
- Abandon never/unlikely used intr_disestablish()s.
[nisimura-pmax-wscons] branch and suggestions from Toru Nisimura:
- Remove bogus tc_slot_info[] name for interrupt handling array
and replace with simplified struct intrhand intrtab[] array.
- Add intr_establish() and intr_disestablish() function pointers
to struct platform and initialise this in each model-specific
initialisation, and remove global tc_enable_interrupt function
pointer.
- Remove model-specific function declarations from ibus/ibusvar.h.
This is functionally identical to the current scheme, and doesn't
yet try to commonise interrupt establishment by bus type as the
[nisimura-pmax-wscons] branch does.
Also, move cpuspeed variable from autoconf.c to machdep.c
stub for memsize_bitmap() to use the PROM bitmap for memory information.
Add a memsize function pointer to the platform structure, and make all
existing DECstation models use memsize_scan() for now.
Interestingly, from the Ultrix cpuconf.{c,h} only the 3100 and 5400 use
a memory scan to determine available memory - all other models use the
PROM bitmap...
HZ using high resolution timer circuit if available. Merge os_init
into the primary hardware initialization in sysinit[].init.
- Nuke an irrelevant attempt to disable RTC under splhigh condition.
- Make sure IOASIC DECstations accumulate device interrupt mask bits into
certain global variables.
- Have witchcrafts to issue ACK to RTC interrupt.
- Add a missing \n and a minor rearrangement in cpu.c
* add "Platform" support inpmax/pmax/sysconf.c and pmax/include/sysconf.h
(based on Alpha cpuconf.[ch], with a namechange to avoid clashes with
support for models of MIPS cpus. They differ more than Alphas).
* For each supported model of DECstation, create a separate file
with the support for that model. Use model codenames, since
support is really baseboard-specific and CPU daugherboards can change.
Move code from machdep.c and pmax_trap.c,
Add sysconf (nee "cpuconf") support.
* Rename model-specific functions to match sysconf names.
* Clean up autoconf.c. Use platform callbacks.
* Retire pmax_trap.c.
Leaves I/O bus configuration and console configuration untouched.
nisimura