CVS log for src/sys/arch/mvme68k/mvme68k/locore.s

Up to [cvs.NetBSD.org] / src / sys / arch / mvme68k / mvme68k

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Keyword substitution: kv
Default branch: MAIN

Pull up following revision(s) (requested by rin in ticket #724
to fix build fallout on the branch):

	sys/arch/m68k/m68k/compat_16_sigreturn14.s: revision 1.6
	sys/arch/mvme68k/mvme68k/locore.s: revision 1.129
	sys/arch/news68k/news68k/locore.s: revision 1.84
	sys/arch/hp300/hp300/locore.s: revision 1.183
	sys/arch/m68k/m68k/compat_13_sigreturn13.s: revision 1.8
	sys/arch/m68k/m68k/sigreturn.s: file removal
	sys/arch/m68k/include/pte_motorola.h: revision 1.10
	sys/arch/atari/atari/locore.s: revision 1.125
	sys/arch/amiga/amiga/locore.s: revision 1.169
	sys/arch/sun2/sun2/locore.s: revision 1.37
	sys/arch/next68k/next68k/locore.s: revision 1.84
	sys/arch/x68k/x68k/locore.s: revision 1.130
	sys/arch/sun3/sun3x/locore.s: revision 1.77
	sys/arch/cesfic/cesfic/locore.s: revision 1.45
	sys/arch/m68k/conf/files.m68k: revision 1.53
	sys/arch/sun3/sun3/locore.s: revision 1.109
	sys/arch/luna68k/luna68k/locore.s: revision 1.81
	sys/arch/mac68k/mac68k/locore.s: revision 1.182

Define PTE used in the pmap module int terms of the bit definitions
in mmu_{51,40}.h.

Make compat_13_sigreturn13.s and compat_16_sigreturn14.s build as their
own stand-alone files and G/C the now-empty sigreturn.s.

Don't put the MVME1xx model defines into IDENT, make them defflag options and
put them in opt_mvmeconf.h.  Make these options depend on the appropriate
M680x0 option (MVME147 -> M68030, MVME16[27] -> M68040, MVME17[27] -> M68060)
so that the CPU option appears correctly in opt_m68k_arch.h.

Make sigcode.s and sunos_sigcode.s build as their own stand-alone files.

Make compat_13_sigreturn13.s and compat_16_sigreturn14.s build as their
own stand-alone files and G/C the now-empty sigreturn.s.

Build m68k/support.s on its own; don't include it from locore.s

Switch mvme68k over to the common interrupt dispatch code and G/C
__HAVE_LEGACY_INTRCNT.

Switch mvme68k to the common m68k vector table.

Make getsr() an inline in <m68k/psl.h> and G/C all of the now-redudant
copies.

Remove getsp(); nothing uses it.

Statically-initialize the '851 / '030 protorp with MMU51_SRP_BITS.  In
pmap_init(), re-initialize protorp with MMU51_CRP_BITS.  Remove the now-
redundant code that does this in each of the m68k platforms.

Remove duplicated / slightly-tweaked loadustp() (load user segment table)
routines from all of the m68k ports using the shared pmap.  Instead, in
pmap_init(), set up a function pointer to the appropriate mmu_load_urp*()
function in mmu_subr.s.

Stop using magic numbers for the MMU root pointer attributes and the
Translation Control register, and also get rid of "#if PGSHIFT == ..."
where those magic numbers are used.

Instead, define new macros: MMU51_SRP_BITS, MMU51_CRP_BITS, MMU51_TCR_BITS,
and MMU40_TCR_BITS, in terms of the definitions in mmu_{40,51}.h.  These
automagically adapt to 8K and 4K pages based on the machine-specific value
of PGSHIFT.

G/C unused ploadw().

loadustp(): Optimize for the overwhelmingly common case of "not the HP MMU".
Rather than converting the level 1 table address to a page number before
calling loadustp() only to have loadustp() convert it back to an address
for the '851, '030, '040, and '060, instead pass the address and convert
to a page number only in the case of the HP MMU.

This is a wash on HP MMU machines (9000/320 and 9000/350), and saves at
least 4 instructions (2x moveq + 2x lsXl) on every context switch on
everything else.

s/identifing/identifying/ and s/multipler/multiplier/ in comments.

Sync with HEAD.

Sync with HEAD.

Adjust the number of entries in the intrcnt array to match the number
of names in the intrnames list.

Remove #undefs against INTERRUPT_SAVEREG and INTERRUPT_RESTOREREG.

They have been defined in <m68k/asm.h> for years.

Sync with HEAD

Sync with HEAD, resolve a few conflicts

Remove compat_svr4 and compat_svr4_32, as discussed on tech-kern@ recently,
but also as discussed several times in the past.

Rebase to HEAD as of a few days ago.

sync with head.

for a reference, the tree before this commit was tagged
as yamt-pagecache-tag8.

this commit was splitted into small chunks to avoid
a limitation of cvs.  ("Protocol error: too many arguments")

sync with head

Use common m68k/busaddrerr.s for bus error and address error handlers.

No binary changes on GENERIC.

Remove duplicated INTERRUPT_SAVEREG and INTERRUPT_RESTOREREG macro.

They are in <m68k/asm.h> and now using different register format.

Remove trailing spaces and tabs.

defined(LKM) -> defined(MODULAR)

sync with head

merge to -current.

Merge m68881_save() and m68881_restore() (using most common mvme68k ones).
All functions are checked by my eyes, and all GENERIC kernels compile.

Make sure to call pflusha before (not after) enabling MMU on
68030/68851 initialization paths.

Pointed out by isaki@ per observation of ATC status on XM6i emulator.
Tested on TT030, HP362, NWS-1750, and X68030 by me.

XXX: probably we can remove existing pflusha or TBIA calls after MMU turned
XXX: on (and before enabling cache) but I leave them as is for now to avoid
XXX: unexcpected side effects.

Move spread getsfc() and getdfc() functions into common m68k/support.s.

Note:
- ENTRY_NOPROFILE() is okay since they are used only for debug printf
- they are declared to return int so no need to put a return value into %a0

Sync with HEAD.

sync with head

Sync with HEAD

Remove clause 3 (UCB advertising clause) from the University of Utah
copyright.  Confirmed by Mike Hibler, mike at cs.utah.edu - thanks!
Also, merge UCB and Utah copyright texts back into one, as they
originally were.

Extra verification by snj@.

Sync with HEAD.

sync with head.

sync with head

fix PR 6724 - convert m68k options to defflag's.  this means that
M680[12346] are now available from opt_m68k_arch.h.  FPSP meantioned
in the PR has already been fixed, and i could not find any more.

i built these kernels to ensure i did not break their builds:

amiga: GENERIC DRACO
atari: HADES FALCON MILAN-PCIIDE
mac68k: GENERIC
sun2: GENERIC
sun3: GENERIC GENERIC3X
cesfic: attempted GENERIC, does not build due to lack of machine/bus.h
hp300: GENERIC
luna68k: GENERIC
mvme68k: GENERIC
news68k: GENERIC
next68k: GENERIC
x68k: GENERIC

Sync with HEAD.

sync with head

s/cpu_fork/cpu_lwp_fork/ in comment.

Now we have Sysseg_pa value so no need to calculate it from KVA Sysseg.
Tested on hp300.

XXX: mac68k seems to have a different VA vs PA mechanism so I leave it for now.

Move uvm_setpagesize() calls from locore.s to pmap_bootstrap_finalize().
Also explicitly set uvmexp.pagesize to prepare 8KB/page settings.

XXX: There is #ifdef !defined(amiga) && !defined(atari) workaround
XXX: because they have different pmap initialization functions.

Use common pmap_bootstrap_finalize() to initialize lwp0 uarea etc.
Also update some comment.
Compile test only.

Kill proc0paddr.  Use lwp0.l_addr instead.

sync with head.

Sync with HEAD.

Sync with HEAD.

Fix inverted logic on FPU type check in fpfault().  From OpenBSD.

sync with HEAD

Merge the ppcoea-renovation branch to HEAD.

This branch was a major cleanup and rototill of many of the various OEA
cpu based PPC ports that focused on sharing as much code as possible
between the various ports to eliminate near-identical copies of files in
every tree.  Additionally there is a new PIC system that unifies the
interface to interrupt code for all different OEA ppc arches.  The work
for this branch was done by a variety of people, too long to list here.

TODO:
bebox still needs work to complete the transition to -renovation.
ofppc still needs a bunch of work, which I will be looking at.
ev64260 still needs to be renovated
amigappc was not attempted.

NOTES:
pmppc was removed as an arch, and moved to a evbppc target.

sync with head.

Sync w/ NetBSD-4-RC_1

Sync with head.

Sync with head.

Sync with HEAD.

Pull up following revision(s) (requested by mhitch in ticket #728):
	sys/arch/mvme68k/mvme68k/locore.s: revision 1.98
	sys/arch/mac68k/mac68k/trap.c: revision 1.128
	sys/arch/next68k/next68k/locore.s: revision 1.48
	sys/arch/mac68k/mac68k/locore.s: revision 1.152
	sys/arch/sun3/sun3/locore.s: revision 1.88
	sys/arch/sun2/sun2/locore.s: revision 1.19
	sys/arch/sun2/sun2/trap.c: revision 1.32
	sys/arch/m68k/m68k/db_trace.c: revision 1.51
	sys/arch/mvme68k/mvme68k/trap.c: revision 1.90
	sys/arch/news68k/news68k/trap.c: revision 1.53
	sys/arch/luna68k/luna68k/locore.s: revision 1.27
	sys/arch/atari/atari/locore.s: revision 1.99
	sys/arch/sun3/sun3/trap.c: revision 1.130
	sys/arch/x68k/x68k/trap.c: revision 1.89
	sys/arch/next68k/next68k/trap.c: revision 1.67
	sys/arch/x68k/x68k/locore.s: revision 1.79
	sys/arch/news68k/news68k/locore.s: revision 1.43
	sys/arch/luna68k/luna68k/trap.c: revision 1.46
	sys/arch/hp300/hp300/locore.s: revision 1.140
	sys/arch/cesfic/cesfic/locore.s: revision 1.15
	sys/arch/cesfic/cesfic/trap.c: revision 1.35
	sys/arch/m68k/m68k/trap_subr.s: revision 1.12
	sys/arch/amiga/amiga/locore.s: revision 1.143
Pass a frame pointer to trap() rather than the 'entire frame' trick.  Gcc4
was optimizing away modifications to the frame contents (it's not nice to
trick gcc).  Pass the pointer as the first argument to reduce the number
of places that would be changed otherwise.  Fixes the getcwd regression
test on most m68k ports.

Pass a frame pointer to trap() rather than the 'entire frame' trick.  Gcc4
was optimizing away modifications to the frame contents (it's not nice to
trick gcc).  Pass the pointer as the first argument to reduce the number
of places that would be changed otherwise.  Fixes the getcwd regression
test on most m68k ports.

Sync with head.

Update to HEAD.

Adapt rest of m68k ports to yamt-idlelwp. Compile tested only.

merge ktrace-lwp.

Fix the sync with head I botched.

Sync with HEAD.

Sync with HEAD

Centralize identical copies of proc_trampoline code.

(lots more opportunites here for the bored hacker, such as rei and trap0...)

Uppercase CPU, plural is CPUs.

Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22364, verified by myself.

Preserve the symbol table in the LKM || KSYMS cases also.

Use PAGE_SIZE rather than NBPG.

Merge the nathanw_sa branch.

Curproc->curlwp renaming.

Change uses of "curproc->l_proc" back to "curproc", which is more like the
original use. Bare uses of "curproc" are now "curlwp".

"curproc" is now #defined in proc.h as ((curlwp) ? (curlwp)->l_proc) : NULL)
so that it is always safe to reference curproc (*de*referencing curproc
is another story, but that's always been true).

catch up with -current on kqueue branch

Catch up to -current.

Eliminate commons (including many used ones).  Clean up variable references.

Move the FPCOPROC define down to where it's needed.

Correct a comment.

cachectl1() takes a struct proc *, not struct lwp *.

Kernel support for Scheduler Activations on m68k-based ports using
mvme68k as a testbed.

Boots multi-user on an mvme162, although userland support for SA is not
yet integrated/tested.

update to -current

file locore.s was added on branch nathanw_sa on 2001-11-17 13:07:55 +0000

Fix a braino in the check for a jumper across pins 1-2 of J1 (mvme1[67]7).
Spotted by Chuck Silvers.

seperate -> separate

Restore FPU context properly on 68060-specific kernels...

Ditch the `simulated' software interrupt in favour of
hardware-assisted soft interrupts on all boards.
(Note: VMEChip2-less 162/172 not yet tested)

This greatly simplifies the `rei' path and allows
interrupt nesting to be tracked somewhat more easily.

As a result we now have a working CLKF_INTR() macro
and can detect uvm_fault() being called from an interrupt
(although there may still be a very short race detecting
the latter; need to investigate further).

Catch up to -current.

G/C an unused parameter to isrdispatch_vectored().

Stack adjustment for autovectored interrupts wasn't quite right...

sigh. It also helps to switch back to .text ...

Pick the right bit to check...

Refuse to boot on 162/172 and 167/177 if the user has not removed
the jumper which tells 1xx-Bug where to locate its scratch data.

Instead, print a message informing the user to RTFM (which needs to
be updated to include this info. ;-)

Deprecate intrcnt/intrnames in favour of the generic evcnt(9) interface.

add missing   #include "opt_kgdb.h"

Update to reflect that unlike in m68k a.out environments, where the .align
directive is given a log2 argument, .align is given a linear argument in
m68k ELF environments.

Sync with HEAD.

Add a missing _ASM_LABEL()

Sync with HEAD

A couple of minor functions which return pointers need to do so in %a0 now.
Spotted by Chuck Silvers.

Sync with HEAD (for UBC fixes).

Simplify the reboot code:
  Always jump through the PROM's reset vector, regardless of board type.
  Fix a stack offset problem in the mvme147 reset code path.

A small splx()/spl0()/soft interrupt related optimisation. If we're
dropping to spl0, use inline code to check if a soft interrupt is
pending instead of taking the hit of a function call to do the check.

Sync with HEAD.

Missed a couple of register prefixes...

Add register prefixes.

split m68k SunOS and SVR4-specific sigcode.s code to sunos_sigcode.s
and svr4_sigcode.s respectively
adjust individual m68k port's locore.s to include new sigcode files if
appropriate

Fix the code which probes the memory controller ASICs. We can now
deal with the 2nd one not being present.

Sync with HEAD.

Put the call to mvme68k_init() back where it was originally.

Define proper macros for FP frame offsets rather than magic numbers.

Update thorpej_scsipi to -current as of a month ago
A i386 GENERIC kernel compiles without the siop, ahc and bha drivers
(will be updated later). i386 IDE/ATAPI and ncr work, as well as
sparc/esp_sbus. alpha should work as well (untested yet).
siop, ahc and bha will be updated once I've updated the branch to current
-current, as well as machine-dependant code.

Add support for the m68060-based machines: MVME-172 and MVME-177.
CPU support taken from a combination of NetBSD/amiga and NetBSD/x68k.

At this time, MVME-172 works but MVME-177 is untested. Since the '177
is otherwise identical to the MVME-167, this should *just work*.

Pullup 1.63 - 1.65 (approved by tv)
Bring support for MVME162 into the 1.5 branch.

Use the complete ethernet address stored in nvram on mvme162/mvme167
instead of faking the first 5 nibbles a'la mvme147.

Apparently recent mvme16x boards have a new 5 nibble prefix...

Add preliminary support for the MVME162-LX 200/300 series of boards.

Currently, the major onboard devices are supported (disk, network,
rs232 and VMEbus). However, work is still need to support the remaining
devices (eg. IndustryPack sites).

These boards are available with a dazzling array of build options. At
this time, the following options are *required*:

	o Real floating point hardware (the 68LC040 model isn't tested),
	o The VMEchip2 must be present,
	o If offboard VMEbus RAM is not present, at least 8MB of onboard
	  RAM is required.
	o Even if offboard VMEbus RAM *is* present, at least 4MB of onboard
	  RAM is required. (Boards with 1 or 2MB onboard RAM *can* be
	  supported with offboard RAM, but not without some funky values in
	  the VMEbus Master mapping registers.)

There is no support for boards other than those in the -LX 200/300 series.

Add a lock around the scheduler, and use it as necessary, including
in the non-MULTIPROCESSOR case (LOCKDEBUG requires it).  Scheduler
lock is held upon entry to mi_switch() and cpu_switch(), and
cpu_switch() releases the lock before returning.

Largely from Bill Sommerfeld, with some minor bug fixes and
machine-dependent code hacking from me.

Pullup from trunk: 1.62
Approved by: thorpej

Implement generic soft interrupts for mvme68k.

Implement generic soft interrupts for mvme68k.
Based on Jason Thorpe's Alpha implementation.

Sync w/ netbsd-1-5-base.

Add a comment on single-processor systems about p_cpu being initialized
by fork1().

First sweep at scheduler state cleanup.  Collect MI scheduler
state into global and per-CPU scheduler state:

	- Global state: sched_qs (run queues), sched_whichqs (bitmap
	  of non-empty run queues), sched_slpque (sleep queues).
	  NOTE: These may collectively move into a struct schedstate
	  at some point in the future.

	- Per-CPU state, struct schedstate_percpu: spc_runtime
	  (time process on this CPU started running), spc_flags
	  (replaces struct proc's p_schedflags), and
	  spc_curpriority (usrpri of processes on this CPU).

	- Every platform must now supply a struct cpu_info and
	  a curcpu() macro.  Simplify existing cpu_info declarations
	  where appropriate.

	- All references to per-CPU scheduler state now made through
	  curcpu().  NOTE: this will likely be adjusted in the future
	  after further changes to struct proc are made.

Tested on i386 and Alpha.  Changes are mostly mechanical, but apologies
in advance if it doesn't compile on a particular platform.

Introduce a new process state distinct from SRUN called SONPROC
which indicates that the process is actually running on a
processor.  Test against SONPROC as appropriate rather than
combinations of SRUN and curproc.  Update all context switch code
to properly set SONPROC when the process becomes the current
process on the CPU.

defopt FPSP.

Merge 'scw_mvme68k_bus_space' branch with the trunk.
These changes add support for:

	o The MI VMEbus framework on both MVME147 and MVME167.
	o Enhancements to the existing MD bus_space(9) implementation.
	o Most of the bus_dma(9) API.

MI VMEbus glue more or less complete.
Kernels now compiled with -Wall, etc. (lots of fixes needed for this)
All MD drivers now bus_spaced/bus_dma'd. The two SCSI drivers should
be replaced with bus_spaced MI versions at some point.

Checkpoint of development of the following features of mvme68k:

 . Preliminary support for the MI VMEbus framework.
 . Full bus_space* and "mostly-there" bus_dma* support.

At this time, MI VMEbus drivers may well work 'as is' on an MVME147 board.
Work to get the MVME167 to this stage is ongoing.

Testers will be required at some point as I have no VMEbus boards which
have existing MI drivers! (Although I am able to test things in a limited
fashion using a noddy driver and a VMEbus RAM card).

TODO:

 . Expunge all remaining use of IIOV() and freinds.
 . Flag the 'boot device' using bus_space_tag_t and offset.
 . Add a 24bit address constraint to bus_dmamem_alloc() (for le/ie)
 . VMEChip2 support on MVME167/MVME177
 . Support the mvme68k boards in VMEbus slave mode.
 . Anything else I can thing of, besides having another beer. ;-)

Pull up to last week's -current.

Pull up revision 1.56 (requested by itohy):
  Fix the problem where single-step tracing of a trap instruction
  makes the system fall into kernel debugger.

Sync with -current

Fix the problem that single-step tracing of a trap instruction
drops the system into kernel debugger.

Make sure the '167 phys_seg_list entry for offboard memory is empty.

Centralize the declaration and clearing of `cold'.

Update from trunk.

Make sure the branch target of the delay loop is aligned to a cache
half-line (8-byte) boundary.  Inspired by a discussion w/ Scott Reynolds.

Sync w/ -current.

pullup 1.51->1.52 (Steve Woodford), w/hand deconflicting. grrr... Christos...

Include opt_compat_sunos.h

pullup 1.50->1.51 (Steve Woodford)

Duh. My last change broke mvme147 support.

Add COMPAT_SVR4 for m68k.

pullup 1.48->1.49, as per Steve Woodford's request, which said:
  This fixes a memory sizing problem which wasn't apparent until I tried a
  16Mb mvme167.

Make the memory sizing code *really* work on mvme167.

completely remove Mach VM support.  all that is left is the all the
header files as UVM still uses (most of) these.

Push 'curproc' on the stack, not 'cachectl'. (I own Ignatios one brick :)

MVME68K specific part of fix for PR 6152

Add support for the VMEchip2 and the ncr53c710 SCSI IOP.
VMEchip2 support work is ongoing. SCSI is complete.

reboot(8) is now supported, by hitting the hard reset (RST) bit in the GCSR.
Figure out the amount of onboard RAM by looking at the MEMC040/MEMECC
configuration register. (Bank #0 only, for now).

Merge support for mvme167 into main tree.

Make this assemble for mixed '147/'167 support.

The further adventures of mvme167 support. Mostly working now.

Fix TBIA usage for non-68030 case.

Changes to support fork_kthread():
- cpu_set_kpc() now takes void *arg third argument, passed to the
  entry point.
- cpu_fork() allows parent to be non-curproc iff parent is proc0.
  When forking non-curproc, assume its state has already been saved.
- Adjust various pieces of machine-dependent code to account of all of this.

Garbage collect trap #1 and trap #2 handlers; they're moved to
trap_subr.s

Pull in opt_compat_netbsd.h

Adjust for the new "reaper" kernel thread: do not free the vmspace and
u-area in machine-dependent code.  Instead, call exit2() to schedule
the reaper to free them for us, once it is safe to do so (i.e. we are
no longer running on the dead proc's vmspace and stack).

Switch to using the common m68k stuff for a couple of things:

 . cache control functions <m68k/cacheops.h>
 . sigreturn code <m68k/m68k/sigreturn.s>

Also a few of other things found while scouting around for vm_offset_t
changes.

defopt DDB.

defopt COMPAT_HPUX

Back out the defopt for M680?0. As pointed out to me, this breaks ports which
dont use the M680?0 the way Amiga, Atari, Mac68k, and X68k do. I must have
missed this in the past discussion about this project.

Move M680[2346]0 to opt_m68kcpu.h.
XXX Some explicit dependencies could be removed now from the individual
arch/$ARCH/conf/Makefile.$ARCH files, but this is still to be done.

Implement changes for MACHINE_NEW_NONCONTIG and UVM.

Fix a bogosity apparently inherited from when the Utah 4.3BSD code base
was converted to use Mach VM for Net2/4.4BSD.  The user segment table
pointer was originally stored in the PCB.  When Mach VM came along,
however, it was also stored in the pmap, and loaded into the PCB in
pmap_activate().  pmap_activate() would then note that the PCB's USTP
was now in sync with the pmap's USTP, and the low-level context switch
code would use the value from the PCB.

However, pmap_activate() would also load the hardware MMU context if
the pmap was the current pmap (or, in the case where pmaps can be shared,
such as in NetBSD, if the proc was the current proc).  The low-level
context switch code would then reload the hardware _again_ using the
USTP from the PCB.

However, the optimization of not calling pmap_activate() if "stchanged"
was false ended up causing some processes to use stale USTP values from
the PCB when the low-level context switch code reloaded the hardware!
This was noticed by using a real vfork(2) (which worked for some time
before failing, surprisingly!)

Since I'm hard pressed to find any real optimization here (since the
hardware was always reloaded once, sometimes twice!), the code now always
calls pmap_activate(), which uses the correct USTP value (the one in the
pmap).  The PCB's USTP is now ignored, and should eventually be g/c'd.

Another optimization can actually be performed, and I have added a comment
describing what it is, but have not yet implemented it.

Also note that most of the loadustp() functions where actually incomplete.
This has been corrected.  These functions should probably be split up into
MMU-specific operations, and called indirectly, rather than doing constant
run-time decision making based on values that will never change during the
course of a boot's lifetime.

- Make pmap_activate() and pmap_deactivate() take a struct proc *.
- Define active_user_pmap() and use it in the appropriate places (from hp300
  port).

Pull rev 1.30 up from trunk (scw)

Chnage MACHINE_NONCONTIG implementation such that the message buffer is
always located at the end of onboard RAM. This allows locore.s to zero
any offboard RAM to initialise the parity bit which most VMEbus RAM cards
have. Without this, many cards buserr on the first read access.
Thanks to Herb Peyerl for the idea.

pull up from main trunk

Finally nobble the last MACHINE_NONCONTIG gremlins. Needed to add
<machine/vmparam.h> to pmap.c and locore.s. Plus, genassym.sh needed
to have USRSTACK removed due to conflict with vmparam.h

Update marc-pcmcia branch from trunk.

Consolidate some initialization in mvme68k_init().

Fix bug whereby if no VMEbus RAM is defined, a MACHINE_NONCONTIG kernel
would fail to boot.

Added support for VMEbus RAM cards via MACHINE_NONCONTIG.
The kernel should still compile and run without it, but I've
put the config option in std.mvme68k so it's built like this
as standard.

Fixed typo. in FPU_68882 entry for MVME147

Update marc-pcmcia branch from trunk.

Add and use fputype.  Optimize floating point save/restore routines a bit more
if only one CPU type is defined.  Eliminate FPCOPROC.  Merge some of the
68060 floating point stuff from the x68k port.

Eliminate references to vmspace.vm_pmap

Adjust for <m86k/m68k/trap_subr.s>

- Use common m68k sigcode.
- Garbage-collect doadump(); it's not used by anything

Use <m68k/m68k/proc_subr.s>

Use <m68k/m68k/support.s>

Garbage-collect extra copypage().

Update from trunk.

Move include of trap.h from genassym.c to locore.s

Use RELOC() to access _myea.

From trunk:
Use RELOC() to access _myea.

From trunk:
Fix uninitialized variable.

Minor twiddle; _prototc is only 4 bytes, not 8.

fix uninit'd variable [detected by charles]

Fix an inconsistency that came in with Lite: setrq() was renamed to
setrunqueue(), but remrq() was never renamed.  Rename remrq() to
remrunqueue().

- Save the boot device info a little earlier in initializaion.

- Use the Bug to find out what kind of machine we're running on, and
  Do The Right Thing, namely:

	- Set `cputype' and `mmutype' as appropriate.

	- Crap out if the kernel doesn't support the machine we
	  booted on.

- Add hooks for MVME-{162,167,177} models; just an empty shell to be
  filled in later.

- Use `MMU_68040' rather than `-2' when checking the MMU type.

Splice in Ignatios' bus error detection code.

import generic boot bug fix

save boot device info from bug/bootblocks

if booted from sboot, stay in it.
if booted from the bug, don't enter sboot.

add _kernel_text

shift code a bit to move "start" to the front of .text [using openbsd ordering]

"jumbo patch":
 - new autoconfig scheme+vme (autoconf.c,clock.c,clockreg.h,
	clockvar.h,vm_machdep.c)
 - new interrupt scheme (isr.c,isr.h,locore.s,machdep.c,vectors.s)
 - switch to MI zs driver (conf.c)
 - new disklabel code, from Dale Rahn <drahn@pacific.urbana.mcd.mot.com>
	(disksubr.c, compatable with theo and dale's openbsd version)
 - new delay() based on sun3 port, using dynamic configuration from
	the sparc port (intergrated by me), calibration moved to startup
	by jason.  (locore.s,machdep.c)
 - clean up: nuke eio space (genassym.c,locore.s,pmap.c,pmap_bootstrap.c),
	nuke STACKCHECK (locore.s), prevent maxuser overflow (pmap.c),

Contributed by Jason R. Thorpe <thorpej@og.org>  (thanks!)

add a "delay" function.
XXX: assumes vme147 speed.   needs to be fixed and sync'd with DELAY.
	[will work with jason/hp300 to fix it properly]

assym.s -> assym.h
(Some ports did this already.)

Move bcopy/ovbcopy/memcpy into m68/m68k/copy.s, which is used by all
m68k ports already anyhow.  No use in keeping 6 identical copies of this
function around.

remove bzero/strlen/bcmp as they are now in libkern

remove bzero/strlen/bcmp as they are now in libkern

mvme68k port -- for the motorola vme147 m68030 card

Initial revision