CVS log for src/sys/arch/sun3/sun3/locore2.c

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Keyword substitution: kv
Default branch: MAIN

Switch the sun68k platforms over to the common m68k vector table.

Fix various typos of "system" in comments. Mainly copypasto errors.

from vezhlys on freenode.

Sync with HEAD

Sync with HEAD

Resolve a couple of conflicts (result of the uimin/uimax changes)

Rename min/max -> uimin/uimax for better honesty.

These functions are defined on unsigned int.  The generic name
min/max should not silently truncate to 32 bits on 64-bit systems.
This is purely a name change -- no functional change intended.

HOWEVER!  Some subsystems have

	#define min(a, b)	((a) < (b) ? (a) : (b))
	#define max(a, b)	((a) > (b) ? (a) : (b))

even though our standard name for that is MIN/MAX.  Although these
may invite multiple evaluation bugs, these do _not_ cause integer
truncation.

To avoid `fixing' these cases, I first changed the name in libkern,
and then compile-tested every file where min/max occurred in order to
confirm that it failed -- and thus confirm that nothing shadowed
min/max -- before changing it.

I have left a handful of bootloaders that are too annoying to
compile-test, and some dead code:

cobalt ews4800mips hp300 hppa ia64 luna68k vax
acorn32/if_ie.c (not included in any kernels)
macppc/if_gm.c (superseded by gem(4))

It should be easy to fix the fallout once identified -- this way of
doing things fails safe, and the goal here, after all, is to _avoid_
silent integer truncations, not introduce them.

Maybe one day we can reintroduce min/max as type-generic things that
never silently truncate.  But we should avoid doing that for a while,
so that existing code has a chance to be detected by the compiler for
conversion to uimin/uimax without changing the semantics until we can
properly audit it all.  (Who knows, maybe in some cases integer
truncation is actually intended!)

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

Whitespace cleanup.

sync with head

Appease gcc -fno-common:
 - initialize cn_tab in locore2.c:_bootstrap() for early printf calls
Tested on sun3 (3/160 on TME) and sun3x (real 3/80).

XXX: sun3 with >16MB RAM gets "panic: ubc_init: failed to map ubc_object"

sync with head

Sync with HEAD (-D20101022).

Make common kernel module binaries work on both sun3 and sun3x.
Tested on 3/160 (on TME) and (real) 3/80.

XXX: module files can be loaded only on single user?

sync with head

Initialize before set.

fix build. (hi rmind)

- Use uvm_lwp_setuarea() instead of directly setting address to lwp_t::l_addr.
- Replace most remaining uses of l_addr with uvm_lwp_getuarea() or lwp_getpcb().
- Amend assembly in ports where it accesses PCB via struct user.
- Rename L_ADDR to L_PCB in few places.  Reduce sys/user.h inclusions.

Kill proc0paddr.  Use lwp0.l_addr instead.

sync with head.

Remove all declarations of physmem from sys/arch.  Add an include of
<sys/systm.h> to the one file that did not already contain it.
This now means that physmem can be changed by updating systm.h and uvm_page.c
(excluding fixing printfs)

Sync with HEAD.

Commit is split, to avoid a "too many arguments" protocol error.

sync with head.

Sync with HEAD.

Use "defopt MODULAR" in sys/conf/files, and #include "opt_modular.h"
in all kernel sources that use the MODULAR option.
Proposed in tech-kern on 18 Jan 2009.

Sync with HEAD.

Sync with HEAD.

Update haad-dm branch to haad-dm-base2.

Remove LKMs and switch to the module framework, pass 1.

Proposed on tech-kern@.

Sync with HEAD.

sync with head.

sync with head.

Remove clause 3 and 4 from TNF licenses

sync with head.

Sync with HEAD.

Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

- sync with head.
- move sched_changepri back to kern_synch.c as it doesn't know PPQ anymore.

sync with head.

TRUE -> true, FALSE -> false

sync with head.

Sync with head.

Sync files of recent sun3 and sun68k merge and intersil7170(4) changes
with HEAD to build sun3 kernel on this branch.

First attempt at bus_space(9) support for sun3 with common sun68k/bus.c:
- make sun3 port use common sun68k files as much as possible
- add temporary options _SUN2_ in std.sun2 until sun3 can share all
  sun68k files (autoconf.c and isr.c are not yet)
- move sun68kvme declaration temporary as well from files.sun68k to files.sun2
- rename and move sun68k_find_prom_map() function to MD sources since it
  can't be shared with sun3
- add bus tag members to struct confargs and initilize them where appropriate

XXX1: MD bus_dma(9) backends are not implemented (yet).
XXX2: more code (obio etc.) should be shared among sun3, sun3x and sun2.

merge ktrace-lwp.

Sync with HEAD. Here we go again...

Move common Sun ID PROM definitions into <dev/sun/idprom.h>.

Constify.

sync with -current

Sync with HEAD.

de-__P, remove register, ansify, b* -> mem*, u_int*_t -> uint*_t.

Fix the sync with head I botched.

Sync with HEAD.

Sync with HEAD

__KERNEL_RCSID()

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

Merge the nathanw_sa branch.

sync kqueue branch with HEAD

catch up with -current.

Catch up to -current.

G/c vestiges of old sun3-specific SYMTAB_SPACE support.

No longer need to pull in lwp.h; proc.h pulls it in for us.

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).

MD Scheduler Activation bits for sun3/3x.
Compile-tested only.

Update the kqueue branch to HEAD.

file locore2.c was added on branch nathanw_sa on 2001-11-18 19:39:01 +0000

bcopy() -> memcpy(), bzero() -> memset()

- vm_offset_t -> vaddr_t, vsize_t, paddr_t
- vm_size_t -> vsize_t
- remove register prefixes
- misc cleanup

Sync with HEAD.

switch sun3 to ELF.  highlight include:
add "%" prefix to register names in assembly code.
change assembly functions to return values in %a0 instead of %d0.
C symbols no longer prepend an underscore, adjust assembly code for this.
32-bit values are now 32-bit aligned instead of 16-bit aligned,
adjust structure packing and padding to override this where necessary.
make EXEC_ELF std, make EXEC_AOUT and COMPAT_AOUT_M68K optional.
use the MI loadfile() instead of several home-grown versions.

Sync with HEAD.

Use macro in <m68k/m68k.h> for cputype and mmutype.

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.

remove include of <vm/vm.h>. <vm/vm.h> -> <uvm/uvm_extern.h>

defopt DDB.

In _save_symtab, ignore any symbol table if preserving it would
cause our memory use to exceed the 1MB limit (on the 3/50 only).

Merge arch/sun3x into arch/sun3

Merged Sun3 and Sun3X kernel sources.

Pull rev 1.71 up from trunk (gwr)

Move some variables from _startup.c into pmap.c (used only there).
Re-organize pmap_bootstrap, and shorten some function names.

Update marc-pcmcia branch from trunk.

Move some of the VM initialization work from _startup.c to pmap.c
where it is normally found.

Move the call to cninit() up a level (easier to find).

Move dumppage initialization from sun3_startup.c to machdep.c
(so it can be a normal kmem_alloc)

Update marc-pcmcia branch from trunk.

Implement the kernel part of pr-1891. This allows for a more flexible sized
msgbuf. Note that old 'dmesg' and 'syslogd' binaries will continue running,
though old 'dmesg' binaries will output a few bytes of junk at the start of
the buffer, and will miss a few bytes at the end of the buffer.

s/_round_seg/m68k_round_seg/ s/_trunc_seg/m68k_trunc_seg/
s/_round_page/m68k_round_page/ s/_trunc_page/m68k_trunc_page/

Be quiet in _save_symtab() unless there is a problem.
Improve some comments (and sync with sun3x code).

s/sun3_/_/ in sun3_(round|trunc)_(page|seg) macros

Merge in changes from The Trunk

Define "cold" over in autoconf.c

Set cputype,mmutype at compile-time.

Declare and set cputype and mmutype.

Nuke sunmon.h, add machdep.h

Use sunmon_abort() instead of mon_panic(), etc.

Remove code that is now in sun3/sunmon.c (shared with sun3x)
Rename some functions (remove sun3 prefix).  Fix copyright.

Remove some junk.

Make this compile with -Werror -Wall -Wstrict-prototypes
(finally! yea!)  Also get rid of __BROKEN_INDIRECT_CONFIG

Most  files that were copyright Adam Glass and/or Gordon W. Ross
are now copyright The NetBSD Foundation (rights assigned).

backout previous kprintf change

printf -> kprintf, sprintf -> ksprintf

Kernel crash dumps now work on the sun3.  (Yea!)

New autoconfig design that controls attach order.

use phys_map for DVMA like the sparc

Improved delay() implementation with lower overhead,
makes very short delays much more accurate.

Explain why sun3_context_equiv() can not just call set_segmap_allctx().

New DVMA interface, and various cleanup.

Do not advance esym if the SYMTAB_SPACE option is set.

Fix uses of btoc() which requires an unsigned arg.

Fix cpuspeed values for Carerra and similar.
Enable the virtual address cache on the 3/260

More liberal check for exec header.  Nuke machine type defines (support all)

Use the exec header left by the boot program to validate the
symbol table size, and then preserve symbols for ddb.

Update cpu_fork() to eliminate double mapping of kernel stacks.

Disable the cache stuff for now.  Add more comments.

prepare to enable the cache

minor cleanup

Make sure curproc->p_addr is set before any faults occur.
Put msgbuf in page zero (so its location is predictable).

Add/fix some comments.

Determine FPU type during autoconfig.

DVMA slave mapping support.

Cleanup related to sfc/dfc register use.  Make FPU code conditional
on run-time fpu_type value (in preparation for real FPU probe).

Add ddb commands:  machine {abort|halt|reboot}

Disable the NMI clock earlier, so the PROM does not touch the ZS chip
while we are using it.  (No need to preserve orig_nmi_vect either).

Cleanup

Nuke the "vmempage" used by /dev/mem (our pmap doesn't like it).
Instead, allocate a DVMA page as needed (like vmapbuf/vunmapbuf).

New autoconfig interface to support VME, etc.

Make a branch that works with the 1.0 code base.

Lots of changes.  Fairly stable now.

Move sun3_round_up_seg() here from param.h as a temporary measure.
Eventually, it should be eliminated from these two files as well.

new RCS ID format.

Get boothowto flags from PROM flags; fix reboot.

updates from trunk, per gwr

miscellaneous cleanup

Make setsoft* use the real software interrupt register.
Integrate several fixes from the amiga port (and drop COMPAT_HPUX for now).
Add lots of debugging checks to pmap.c - still needs work.

Tracking 4.4 integration

Enable/disable clocks in sun3_stop()
Add functions to call sun3_stop() with the appropriate arg.
Set the cpuspeed according to the machine type.

some incredibly trivial cleanup

compiles again. also cleanup of development printfs. and trap stuff

bugs fixed and cleanup

boots, presents shell prompt, and doesn't crash immediately

sun3 port works under NetBSD-current now.  rcsids probably fucked

Now works with current tree, as opposed to the july 8th tree in which it was
written.
Requires magnum infrastructure now, particularly the clock stuff.
Fails to exec init because the /sbin/init binary
is a sunos binary.  Next step is to integrate sunos compatibility code
from /sys/compat/sunos, and the amiga port.
Does not yet implement MACHINE_NOCONTIG support.

[from glass Mon Nov 22 21:22:45 PST 1993  home tag: home2]

sun3 port updated. netboot integrated.

last snapshot before uploading.  we still have serious clock problems

gets past enablertclock(), now time to deal with the mountroot mess

snapshot. for uploading.  gets lost in swtch after enablertclock()

runs up to and including configure().
todo: exceptions, interrupt support, make isrs affect vector table
kernel/user stacks

snapshot.  ready to call configure(), partial integration of torek's config 
stuff, i.e it looks to do the right thing but we haven't written any code
yet :)

lots of changes, too many printfs

gets to consinit() and blows up

it links with out any unresolved symbols, last few are just stubs
because we aren't likely to get near execing init for a while

cleanup, one time compile with -Wall, include systm.h
conversion to new asm.h, removal of ALTENTRY(), ENTRY() pairs replaced by
TWOENTRY().
moved idprom fetching stuff to sun3_startup
bug fixes to pmap
added to sun3_startup.c support for initializing the vm layout, and for
verifying the hardware vs the -Ds from config(8)
still doesn't link. but list is much shorter, and much stupider

snapshot.  working on vm bootstrapping problems, and resolution of undefined
symbols.

clock.c: now compiles even if address is bogus :)
conf.c: compiled, until prom addition :)
cons.c: add entry for prom driver
lib.s: remove some includes; we're being included by locore.s
locore.s: include asm.h, syscall.h, add icode
m68k.s: now included by locore.s
added signal.s; contains signal support
sun3_startup.c: fixed compile bug in vector table initialization; fixed mon
	usage
swapgeneric.c: doesn't refer to drivers we don't have

initial commit