CVS log for src/sys/arch/next68k/next68k/machdep.c

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Move the at-shutdown call to resettodr() from cpu_reboot() to kern_reboot().

It's a small step, but it's a step.

Remove unnecessary <sys/malloc.h> include.

Pull up following revision(s) (requested by tsutsui in ticket #77):

	sys/arch/next68k/include/vmparam.h: revision 1.29
	sys/arch/next68k/next68k/machdep.c: revision 1.118
	sys/arch/next68k/include/param.h: revision 1.13
	sys/arch/next68k/next68k/pmap_bootstrap.c: revision 1.45
	sys/arch/next68k/next68k/locore.s: revision 1.70
	sys/arch/next68k/next68k/locore.s: revision 1.71

Use explicit CPU strings and remove hp300 derived stuff.

Remove #ifdef'ed out hp300 specific stuff.

Remove leftover "last kernel PT page" settings derived from hp300.

Whilehere, also remove VM definitions for obsolete COMPAT_HPUX stuff.

All hp300 machines has RAMs at a region from the highest address
i.e. 0xFFFFFFFF to smaller address (as HP claims "it's the MSB first"),
so kernels have to prepare PA==KVA mappings as the "last PT page" to
guarantee the running kernel works both before and after the MMU is
turned on.  For such a special mapping, we have to set up necessary
segment table and page table during early startup, in pmap_bootstrap()
invoked from locore.s.

On the other hand, NeXT machines have RAMs at a region from 0x40000000
to below (i.e. to larger address) so we still need a PA==KVA mapping.
However currently NetBSD/next68k just uses the transparent translation
registers to achieve the PA==KVA mapping, so unlike hp300 we don't have
to prepare special segment table and page table for it.

Note many other m68k ports (like luna68k, news68k, x68k etc.) have
RAMs at a region from 0x00000000 so usually we can assume PA==KVA
and don't have to bother to prepare such speicial mappings.

No user visible changes (except now freed wasted pages for the tables).

Tested on my NeXTstation slab.

Pull up following revision(s) (requested by tsutsui in ticket #1590):

	sys/arch/next68k/include/vmparam.h: revision 1.29
	sys/arch/next68k/next68k/machdep.c: revision 1.118
	sys/arch/next68k/include/param.h: revision 1.13
	sys/arch/next68k/next68k/pmap_bootstrap.c: revision 1.45
	sys/arch/next68k/next68k/locore.s: revision 1.70
	sys/arch/next68k/next68k/locore.s: revision 1.71

Use explicit CPU strings and remove hp300 derived stuff.

Remove #ifdef'ed out hp300 specific stuff.

Remove leftover "last kernel PT page" settings derived from hp300.

Whilehere, also remove VM definitions for obsolete COMPAT_HPUX stuff.

All hp300 machines has RAMs at a region from the highest address
i.e. 0xFFFFFFFF to smaller address (as HP claims "it's the MSB first"),
so kernels have to prepare PA==KVA mappings as the "last PT page" to
guarantee the running kernel works both before and after the MMU is
turned on.  For such a special mapping, we have to set up necessary
segment table and page table during early startup, in pmap_bootstrap()
invoked from locore.s.

On the other hand, NeXT machines have RAMs at a region from 0x40000000
to below (i.e. to larger address) so we still need a PA==KVA mapping.
However currently NetBSD/next68k just uses the transparent translation
registers to achieve the PA==KVA mapping, so unlike hp300 we don't have
to prepare special segment table and page table for it.

Note many other m68k ports (like luna68k, news68k, x68k etc.) have
RAMs at a region from 0x00000000 so usually we can assume PA==KVA
and don't have to bother to prepare such speicial mappings.

No user visible changes (except now freed wasted pages for the tables).

Tested on my NeXTstation slab.

Remove trailing spaces and TABs.

Use proper C99 int types.

Use explicit CPU strings and remove hp300 derived stuff.

Pull up following revision(s) (requested by tsutsui in ticket #1581):

	sys/arch/next68k/next68k/machdep.c: revision 1.117
	sys/arch/next68k/dev/esp.c: revision 1.65
	sys/arch/next68k/include/cpu.h: revision 1.51
	sys/arch/next68k/include/bus_space.h: revision 1.20
	sys/arch/next68k/next68k/clock.c: revision 1.13

next68k: Fix delay_divisor value for proper delay(9) on 68040.

next68k: Specify proper constraints for bus_space_read region and multi ops.

These functions write the read data into memory at a specified pointer,
but without the "memory" constraint gcc could optimize out these ops
if the memory is allocated on local stack.

With this fix nextkbd(4) works again.
Should be pulled up to netbsd-10 and netbsd-9.

next68k: Fix silent stall of next68k esp(4) SCSI.

next68k esp(4) driver requires nextdma(4) interrupts at ipl 6
during ncr53c9x_intr() for esp(4) at ipl 3.  It worked on netbsd-5
and prior, but on netbsd-5 splbio() was changed from ipl 3 to 6
for SMP support and on netbsd-6 ncr53c9x driver was changed to
use mutex(9) instead of simple_lock(9), so nextdma interrupts
were no longer raised during ncr53c9x interrupt handler.

For now, just call mutex_exit(9) and mutex_enter(9) during
waiting nextdma(4) interrupts in MD esp_dma_intr() handler.

This could be wrong and the interrupt handler for nextdma should
be reorganized, but it just works.

Should be pulled up to netbsd-10 and netbsd-9.

Pull up following revision(s) (requested by tsutsui in ticket #63):

	sys/arch/next68k/next68k/machdep.c: revision 1.117
	sys/arch/next68k/dev/esp.c: revision 1.65
	sys/arch/next68k/include/cpu.h: revision 1.51
	sys/arch/next68k/include/bus_space.h: revision 1.20
	sys/arch/next68k/next68k/clock.c: revision 1.13

next68k: Fix delay_divisor value for proper delay(9) on 68040.

next68k: Specify proper constraints for bus_space_read region and multi ops.

These functions write the read data into memory at a specified pointer,
but without the "memory" constraint gcc could optimize out these ops
if the memory is allocated on local stack.

With this fix nextkbd(4) works again.
Should be pulled up to netbsd-10 and netbsd-9.

next68k: Fix silent stall of next68k esp(4) SCSI.

next68k esp(4) driver requires nextdma(4) interrupts at ipl 6
during ncr53c9x_intr() for esp(4) at ipl 3.  It worked on netbsd-5
and prior, but on netbsd-5 splbio() was changed from ipl 3 to 6
for SMP support and on netbsd-6 ncr53c9x driver was changed to
use mutex(9) instead of simple_lock(9), so nextdma interrupts
were no longer raised during ncr53c9x interrupt handler.

For now, just call mutex_exit(9) and mutex_enter(9) during
waiting nextdma(4) interrupts in MD esp_dma_intr() handler.

This could be wrong and the interrupt handler for nextdma should
be reorganized, but it just works.

Should be pulled up to netbsd-10 and netbsd-9.

next68k: Fix delay_divisor value for proper delay(9) on 68040.

Call cnpollc(9) before cngetc(9) as the cons(9) man page says.

Currently most ports do nothing in cnpollc(9), but this is required to
handle wskbd(9) .set_leds op in cngetc(9) properly, at least on luna68k.

uvm_availmem(): give it a boolean argument to specify whether a recent
cached value will do, or if the very latest total must be fetched.  It can
be called thousands of times a second and fetching the totals impacts not
only the calling LWP but other CPUs doing unrelated activity in the VM
system.

Merge changes from current as of 20200406

Rename uvm_free() -> uvm_availmem().

uvmexp.free -> uvm_free()

Sync with HEAD

G/C "MAPPECOPY".  It is the deadest of wood, and never actually worked in
NetBSD.

Restore all work from the former pgoyette-localcount branch (which is
now abandoned doe to cvs merge botch).

The branch now builds, and installs via anita.  There are still some
problems (cgd is non-functional and all atf tests time-out) but they
will get resolved soon.

Adapt the machine/arch dependent code to the new {b,c}devsw reference
counting.

XXX Most of these will require testing by someone other than myself, as
I have a limited selection of hardware!

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 cpu_{g,s}etmodel
- fix unused

fix typo.

sync with head

Sprinkle extern to appease gcc -fno-common.

Remove declartions of physmem

Remove safepri and use IPL_SAFEPRI instead.  This may be defined in a MD
header file (if not, a value of 0 is assmued).

sync with head

merge to -current.

implement bdev_size(9) wrapper around d_psize() routine, so we can take
the device lock in relevant places.  avoid doing so while actually dumping.

tested i386 crash dumps still work, and that all touched files compile.

fixes PR#45705.

Catchup with rmind-uvmplock merge.

Welcome to 5.99.53!  Merge rmind-uvmplock branch:

- Reorganize locking in UVM and provide extra serialisation for pmap(9).
  New lock order: [vmpage-owner-lock] -> pmap-lock.

- Simplify locking in some pmap(9) modules by removing P->V locking.

- Use lock object on vmobjlock (and thus vnode_t::v_interlock) to share
  the locks amongst UVM objects where necessary (tmpfs, layerfs, unionfs).

- Rewrite and optimise x86 TLB shootdown code, make it simpler and cleaner.
  Add TLBSTATS option for x86 to collect statistics about TLB shootdowns.

- Unify /dev/mem et al in MI code and provide required locking (removes
  kernel-lock on some ports).  Also, avoid cache-aliasing issues.

Thanks to Andrew Doran and Joerg Sonnenberger, as their initial patches
formed the core changes of this branch.

Sync with HEAD.

sync with head

- merge and move pasted m68k MD setreg() functions into m68k/m68k_machdep.c
- move m68881_save() and m68881_restore() declarations into <m68k/m68k.h>

Briefly tested and no obvious breakage on atari, sun3, and x68k.

Move isrinit() call from early next68k_init() to cpu_configure(9)
since interrupt service routines would want evcnt(9).

sync with head (and fix few botches with this)

sync with head

p_psstr -> p_psstrp

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@.

Explicitly include <machine/pcb.h> for struct pcb.

Sync with HEAD (-D20101022).

Prepare empty module_init_md() for options MODULAR for all other m68k ports.

Sync with HEAD.

- Invent mm_md_getva() and mm_md_relva() routines, provided by MD and
  indicated with __HAVE_MM_MD_PREFER_VA.  It will be used to deal with
  cache aliasing issues and thus fix little MIPS, ARM and friends.

- Convert dev_mem_readwrite() to use unmanaged mappings.  Fix a missed
  offset addition in a case of direct map.  Sprinkle various comments in
  the memory device driver.

- Add missing direct map handling on hp700 and vax.  Make checks across
  m68k ports more consistent, reduce the diffs.  Fix kernacc check miss
  on news68k.  Minor off-by-one fix for alpha.  Add MEMC_PHYS_BASE for
  mmap() case check on acorn26.  Misc clean-up.

Unify /dev/{mem,kmem,zero,null} implementations in MI code.  Based on patch
from Joerg Sonnenberger, proposed on tech-kern@, in February 2008.

Work and depression still in progress.

sync with head

Remove separate mb_map. The nmbclusters is computed at boot time based
on the amount of physical memory and limited by NMBCLUSTERS if present.
Architectures without direct mapping also limit it based on the kmem_map
size, which is used as backing store. On i386 and ARM, the maximum KVA
used for mbuf clusters is limited to 64MB by default.

The old default limits and limits based on GATEWAY have been removed.
key_registered_sb_max is hard-wired to a value derived from 2048
clusters.

Change u_long to vaddr_t/vsize_t in exec code where appropriate (mostly
involves setregs and vmcmds).  Should result in no code differences.

Use lwp_getpcb() on m68k ports, clean from struct user usage.

kill extra whitespaces
reviewed by tsutsui@

sync with head.

Include <sys/exec_aout.h> explicitly instead of relying on <sys/exec.h> to
do it for us.

Sync with HEAD.

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

sync with head.

Sync with HEAD.

bcopy -> memcpy

bzero -> memset

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.

Pull up following revision(s) (requested by ad in ticket #346):
	sys/arch/alpha/alpha/machdep.c: revision 1.311
	sys/arch/amiga/amiga/machdep.c: revision 1.211
	sys/arch/atari/atari/machdep.c: revision 1.153
	sys/arch/hp700/hp700/machdep.c: revision 1.53
	sys/arch/i386/i386/dumpsys.c: revision 1.5
	sys/arch/mips/mips/mips_machdep.c: revision 1.206
	sys/arch/mvme68k/mvme68k/machdep.c: revision 1.132
	sys/arch/news68k/news68k/machdep.c: revision 1.75
	sys/arch/next68k/next68k/machdep.c: revision 1.88
	sys/arch/sparc/sparc/machdep.c: revision 1.285
	sys/arch/sparc64/sparc64/machdep.c: revision 1.230
	sys/arch/sun2/sun2/machdep.c: revision 1.56
	sys/arch/sun3/sun3/machdep.c: revision 1.188
	sys/arch/sun3/sun3x/machdep.c: revision 1.114
	sys/arch/x68k/x68k/machdep.c: revision 1.153
dumpsys: don't spew numbers into the log.

Sync with HEAD.

Sync with HEAD.

use PRIx64 format to printf type dev_t

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

As discussed on tech-kern: mutex_init is too heavyweight for early bootstrap
phases, so move the initialization of the ksyms mutex back into main via
a function called ksyms_init. Rename the existing (but quite different)
ksyms_init* variations into ksyms_addsyms_elf() and ksyms_addsyms_explicit()
and adapt machdep code accordingly.

dumpsys: don't spew numbers into the log.

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

Proposed on tech-kern@.

It is not appropriate to call pmf_system_shutdown(9) from
doshutdownhooks(9): shutdown hooks registered by shutdownhook_establish(9)
expect to be called with interrupts disabled, but shutdown hooks
registered with pmf_device_register1(9) expect to be called with
interrupts enabled.  So I have made two changes:

1 Do not call pmf_system_shutdown() from doshutdownhooks().  Instead,
change every call to doshutdownhooks() to a call to doshutdownhooks()
followed by a call to pmf_system_shutdown().  No functional change
is intended by this change.

2 Make i386 re-enable interrupts briefly while it calls
pmf_system_shutdown().  I leave it to others either to fix the
other ports, or to factor out some MI shutdown code, as joerg@
suggests, and fix that.  Note that a functional change *is* intended
by this change.

I hope that this patch will stop us from flip-flopping between
calling doshutdownhooks() and pmf_system_shutdown() sometimes with
and sometimes without interrupts enabled.

Sync with HEAD.

Sync with HEAD.

Merge in changes between wrstuden-revivesa-base-2 and
wrstuden-revivesa-base-3.

Sync with wrstuden-revivesa-base-2.

Remove ancient workaround hacks for gcc 2.7.2.

Sync with head.

Sync with HEAD.

Replce exec_map with a pool. Proposed on tech-kern@, reviewed by chs@.

Per discussion with ad, remove most of the #include <sys/sa.h> lines
as they were including sa.h just for the type(s) needed for syscallargs.h.

Instead, create a new file, sys/satypes.h, which contains just the
types needed for syscallargs.h. Yes, there's only one now, but that
may change and it's probably more likely to change if it'd be difficult
to handle. :-)

Per discussion with matt at n dot o, add an include of satypes.h to
sigtypes.h. Upcall handlers are kinda signal handlers, and signalling
is the header file that's already included for syscallargs.h that
closest matches SA.

This shaves about 3000 lines off of the diff of the branch relative
to the base. That also represents about 18% of the total before this
checkin.

I think this reduction is very good thing.

Initial checkin of re-adding SA. Everything except kern_sa.c
compiles in GENERIC for i386. This is still a work-in-progress, but
this checkin covers most of the mechanical work (changing signalling
to be able to accomidate SA's process-wide signalling and re-adding
includes of sys/sa.h and savar.h). Subsequent changes will be much
more interesting.

Also, kern_sa.c has received partial cleanup. There's still more
to do, though.

Sync with HEAD.

sync with head

sync with HEAD

Sync with HEAD

Remove COMPAT_HPUX.

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 with head.

Sync with head.

Update to HEAD.

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

Sync with HEAD.

Allocate msgbufaddr in pmap_bootstrap.c where it's initilized,
and move its declaration into <m68k/pmap_motorola.h>.

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

TRUE -> true, FALSE -> false

sync with head.

Merge newlock2 to head.

Sync with head.

Remove support for SA. Ok core@.

Remove duplicate #includes, patch contributed in private mail
by Slava Semushin <slava.semushin@gmail.com>.

To verify that no nasty side effects of duplicate includes (or their
removal) have an effect here, I've compiled an i386/ALL kernel with
and without the patch, and the only difference in the resulting .o
files was in shifted line numbers in some assert() calls.
The comparison of the .o files was based on the output of "objdump -D".

Thanks to martin@ for the input on testing.

sync with head.

Sync with head.

sync with head

in cpu_dumpconf(), don't panic() if we can't bdevsw_lookup() the
dumpdev.  this occurs when we try to set the dumpdev to a device
with no driver loaded.  this fixes PR#34872.

in sys_swapctl, if bdevsw_lookup() fails, set dumpdev = NODEV
before calling cpu_dumpconf().  (this also fixes PR#34872.)

XXX: cpu_dumpconf() should probably be changed to take a dumpdev
XXX: and return an error in such cases, but that is a much more
XXX: intrusive change.

XXX2: this is only run-tested on sparc64 and compile tested on a
XXX2: couple of platforms.

sync with head.

merge ktrace-lwp.

Sync with HEAD. Here we go again...

sync with head.

Pull up following revision(s) (requested by chs in ticket #923):
	sys/arch/next68k/next68k/machdep.c: revision 1.73
	sys/arch/luna68k/luna68k/machdep.c: revision 1.42
	sys/arch/hp300/hp300/machdep.c: revision 1.184
	sys/arch/amiga/amiga/machdep.c: revision 1.193
	sys/arch/x68k/x68k/machdep.c: revision 1.129
	sys/arch/mac68k/mac68k/machdep.c: revision 1.306
	sys/arch/news68k/news68k/machdep.c: revision 1.61
	sys/arch/mvme68k/mvme68k/machdep.c: revision 1.113
	sys/arch/atari/atari/atari_init.c: revision 1.63
fix crash dumps on m68k platforms, cpu_kcore_hdr_t is larger than
512 bytes now so we need a bigger buffer.  PR 26958.

fix crash dumps on m68k platforms, cpu_kcore_hdr_t is larger than
512 bytes now so we need a bigger buffer.  PR 26958.

sync with -current

Move the MI printing of `copyright' to the MD cpu_startup() code
where the printing of `version' is already performed.
This has the benefit of allowing the copyright to be available
via dmesg(8) on platforms which need the `msgbuf' to be setup
in cpu_startup() before printed output is remembered.

Sync with HEAD.

sync with head.

remove uvm_map_protect from cpu_startup of several ports.
- they shouldn't be needed with the current fault handler.
- they causes assertion failure with the recent vm_map implementation.

discussed on tech-kern@.  reviewed by Chuck Silvers.
PR/29179 from Julio M. Merino Vidal.

Sync with HEAD.

de-__P, remove register, ansify.

Fix the sync with head I botched.

Sync with HEAD.

Sync with HEAD

Tango on sysctl_createv() and flags.  The flags have all been renamed,
and sysctl_createv() now uses more arguments.

move my copyright statement up to new berkeley license

Uppercase CPU, plural is CPUs.

Replace the traditional buffer memory management -- based on fixed per buffer
virtual memory reservation and a private pool of memory pages -- by a scheme
based on memory pools.

This allows better utilization of memory because buffers can now be allocated
with a granularity finer than the system's native page size (useful for
filesystems with e.g. 1k or 2k fragment sizes).  It also avoids fragmentation
of virtual to physical memory mappings (due to the former fixed virtual
address reservation) resulting in better utilization of MMU resources on some
platforms.  Finally, the scheme is more flexible by allowing run-time decisions
on the amount of memory to be used for buffers.

On the other hand, the effectiveness of the LRU queue for buffer recycling
may be somewhat reduced compared to the traditional method since, due to the
nature of the pool based memory allocation, the actual least recently used
buffer may release its memory to a pool different from the one needed by a
newly allocated buffer. However, this effect will kick in only if the
system is under memory pressure.

Dynamic sysctl.

Gone are the old kern_sysctl(), cpu_sysctl(), hw_sysctl(),
vfs_sysctl(), etc, routines, along with sysctl_int() et al.  Now all
nodes are registered with the tree, and nodes can be added (or
removed) easily, and I/O to and from the tree is handled generically.

Since the nodes are registered with the tree, the mapping from name to
number (and back again) can now be discovered, instead of having to be
hard coded.  Adding new nodes to the tree is likewise much simpler --
the new infrastructure handles almost all the work for simple types,
and just about anything else can be done with a small helper function.

All existing nodes are where they were before (numerically speaking),
so all existing consumers of sysctl information should notice no
difference.

PS - I'm sorry, but there's a distinct lack of documentation at the
moment.  I'm working on sysctl(3/8/9) right now, and I promise to
watch out for buses.

Cast through (void *) to appease gcc3.

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

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

__KERNEL_RCSID()

Apply the aborted ktrace-lwp changes to a specific branch.  This is just for
others to review, I'm concerned that patch fuziness may have resulted in some
errant code being generated but I'll look at that later by comparing the diff
from the base to the branch with the file I attempt to apply to it.  This will,
at the very least, put the changes in a better context for others to review
them and attempt to tinker with removing passing of 'struct lwp' through
the kernel.

Back out the lwp/ktrace changes. They contained a lot of colateral damage,
and need to be examined and discussed more.

Pass lwp pointers throughtout the kernel, as required, so that the lwpid can
be inserted into ktrace records.  The general change has been to replace
"struct proc *" with "struct lwp *" in various function prototypes, pass
the lwp through and use l_proc to get the process pointer when needed.

Bump the kernel rev up to 1.6V

Back out the following chagne:
    http://mail-index.netbsd.org/source-changes/2003/05/08/0068.html

There were some side-effects that I didn't anticipate, and fixing them
is proving to be more difficult than I thought, do just eject for now.
Maybe one day we can look at this again.

Fixes PR kern/21517.

Simplify the way the bounds of the managed kernel virtual address
space is advertised to UVM by making virtual_avail and virtual_end
first-class exported variables by UVM.  Machine-dependent code is
responsible for initializing them before main() is called.  Anything
that steals KVA must adjust these variables accordingly.

This reduces the number of instances of this info from 3 to 1, and
simplifies the pmap(9) interface by removing the pmap_virtual_space()
function call, and removing two arguments from pmap_steal_memory().

This also eliminates some kludges such as having to burn kernel_map
entries on space used by the kernel and stolen KVA.

This also eliminates use of VM_{MIN,MAX}_KERNEL_ADDRESS from MI code,
this giving MD code greater flexibility over the bounds of the managed
kernel virtual address space if a given port's specific platforms can
vary in this regard (this is especially true of the evb* ports).

Call ksyms_init() instead of ddb_init() in case of
	NKSYMS || defined(DDB) || defined(LKM)

Use PAGE_SIZE rather than NBPG.

Merge the nathanw_sa branch.

Catch up to -current.

sync kqueue with -current; this includes merge of gehenna-devsw branch,
merge of i386 MP branch, and part of autoconf rototil work

LWPify

Don't include <sys/map.h>.

Do not include <sys/clist.h>, it's not used in NetBSD at all.

Catch up to -current.

Comprehensive patches from Christian Limpach:
* Fix problems with the DMA and SCSI drivers.
* Make turbo machines sort of work.
Additional fixes from me:
* Determine if we're a turbo at boot time, by looking at the ROM machine type.
* Set the display size correctly (1120 pixels wide, but padded to 1152 only on
  non-turbo machines).
Caveats:
* SCSI doesn't work on the turbo (or at least it blows chunks with no devices
  attached).
* Media selection doesn't work on the turbo (the BMAP stuff doesn't exist on
  turbo machines).
* The boot block is prone to timing out.

Merge the gehenna-devsw branch into the trunk.

This merge changes the device switch tables from static array to
dynamically generated by config(8).

- All device switches is defined as a constant structure in device drivers.

- The new grammer ``device-major'' is introduced to ``files''.

	device-major <prefix> char <num> [block <num>] [<rules>]

- All device major numbers must be listed up in port dependent majors.<arch>
  by using this grammer.

- Added the new naming convention.
  The name of the device switch must be <prefix>_[bc]devsw for auto-generation
  of device switch tables.

- The backward compatibility of loading block/character device
  switch by LKM framework is broken. This is necessary to convert
  from block/character device major to device name in runtime and vice versa.

- The restriction to assign device major by LKM is completely removed.
  We don't need to reserve LKM entries for dynamic loading of device switch.

- In compile time, device major numbers list is packed into the kernel and
  the LKM framework will refer it to assign device major number dynamically.

sync kqueue branch with HEAD

catch up with -current.

Catch up to -current.

Make nbuf, nswbuf, and bufpages unsigned.  Make all operations on these
variables unsigned, and update places where their values are printed.

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).

catch up with -current on kqueue branch

Catch up to -current.

Catch up with -current.

#include <sys/sa.h> before <sys/syscallargs.h>, to provide sa_upcall_t
now that <sys/param.h> doesn't include <sys/sa.h>.

(Behold the Power of Ed)

Check for zsc properly, and fix typo in #include.
Pointed out, and patch provided by Christian Limpach in private e-mail.

Replace the access to devsw table and the hard-coded major with devsw API.

make kgdb buildable again, g/c next68k/stub.c
Changes by Christian Limpach in kern/16794, with some minor adjustment
by me.

Catch up to -current.
(CVS: It's not just a program. It's an adventure!)

kill remaining PS_STRINGS instances.

Catch up with -current.

Change type of dumpmag to u_int32_t since it is actually
a 32bit unsigned magic number.
As per discussion on tech-kern, and fixes port-sparc64/11949.

If an FPU is available, call m68k_make_fpu_idle_frame() to generate
a reference FPU idle frame.

MD Scheduler Activation bits for Next68k.
Compile-tested only.

Catch up with -current.

Update the kqueue branch to HEAD.

file machdep.c was added on branch nathanw_sa on 2001-11-18 18:43:07 +0000

Update pmap_update to now take the updated pmap as an argument.
This will allow improvements to the pmaps so that they can more easily defer expensive operations, eg tlb/cache flush, til the last possible moment.

Currently this is a no-op on most platforms, so they should see no difference.

Reviewed by Jason.

Catch up to -current.

replace vm_map{,_entry}_t with struct vm_map{,_entry} *.

add missing   #include "opt_kgdb.h"

switch next68k to ELF.  highlight include:
add "%" prefix to register names in assembly code.
change assembly functions to return pointer 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.

Sprinkle pmap_update() calls after calls to:
- pmap_enter()
- pmap_remove()
- pmap_protect()
- pmap_kenter_pa()
- pmap_kremove()
as described in pmap(9).

These calls are relatively conservative.  It may be possible to
optimize these a little more.

Catch up with -current.

Sync with HEAD.

eliminate the KERN_* error codes in favor of the traditional E* codes.
the mapping is:

KERN_SUCCESS			0
KERN_INVALID_ADDRESS		EFAULT
KERN_PROTECTION_FAILURE		EACCES
KERN_NO_SPACE			ENOMEM
KERN_INVALID_ARGUMENT		EINVAL
KERN_FAILURE			various, mostly turn into KASSERTs
KERN_RESOURCE_SHORTAGE		ENOMEM
KERN_NOT_RECEIVER		<unused>
KERN_NO_ACCESS			<unused>
KERN_PAGES_LOCKED		<unused>

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 new macro BOOT_FLAG() (defined in <sys/boot_flag.h>) - this
maps standard boot flags to corresponding RB_* values
use BOOT_FLAG() in port's MD code as appropriate

as discussed on tech-kern, add new boot flags -v, -q for booting
verbosely or quietly, and corresponding AB_VERBOSE/AB_QUIET
boot flags; also add FreeBSD-compatible bootverbose macro and
NetBSD-specific bootquiet macro

for hpcmips, use new bootverbose instead of it's own hpcmips_verbose

Tested on i386, and to limited extend (compile of affected files) also for
mvme68k, hp300, luna68k, sun3.

Add an align argument to uvm_map() and some callers of that
routine.  Works similarly fto pmap_prefer(), but allows callers
to specify a minimum power-of-two alignment of the region.
How we ever got along without this for so long is beyond me.

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

remove/move more mach vm header files:

	<vm/pglist.h> -> <uvm/uvm_pglist.h>
	<vm/vm_inherit.h> -> <uvm/uvm_inherit.h>
	<vm/vm_kern.h> -> into <uvm/uvm_extern.h>
	<vm/vm_object.h> -> nothing
	<vm/vm_pager.h> -> into <uvm/uvm_pager.h>

also includes a bunch of <vm/vm_page.h> include removals (due to redudancy
with <vm/vm.h>), and a scattering of other similar headers.

Sync w/ netbsd-1-5-base.

oops, we need nofault.

use rtc.h for poweroff() and #if 0 out badaddr, which isn't used
anywhere.  machdep.c compiles w/o any noise now.

no need to include next{kbd,display}var.h

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.

Centralise the declarations of cpu_model, machine, machine_arch,
osrelease, and ostype and remove "extern char foo[];" (for hostname
and domainname too).

Also delete redunctant decl of boottime in kern_info_43.c.

Merge parts of chs-ubc2 into the trunk:
* Remove the casts to vaddr_t from the round_page() and trunc_page() macros to
  make them type-generic, which is necessary i.e. to operate on file offsets
  without truncating them.
* In due course, cast pointer arguments to these macros to an appropriate
  integral type (paddr_t, vaddr_t).

Originally done by Chuck Silvers, updated by myself.

Move callout initialization to a single location; no need to duplicate
that code all over the place.

Pull up to last week's -current.

CL* discarding.

Sync with -current

Update for pmap_enter() API change.  No functional difference.

Centralize the declaration and clearing of `cold'.

eliminate the PMAP_NEW option by making it required for all ports.
ports which previously had no support for PMAP_NEW now implement
the pmap_k* interfaces as wrappers around the non-k versions.

Sync w/ -current.

Change the vm_map's "entries_pageable" member to a r/o flags member, which
has PAGEABLE and INTRSAFE flags.  PAGEABLE now really means "pageable",
not "allocate vm_map_entry's from non-static pool", so update all map
creations to reflect that.  INTRSAFE maps are maps that are used in
interrupt context (e.g. kmem_map, mb_map), and thus use the static
map entry pool (XXX as does kernel_map, for now).  This will eventually
change now these maps are locked, as well.

* convert to using MI allocsys(). most ports were using an MD allocsys(),
  although a couple still used the old pre-4.4-lite (?) mechanism.
* use format_bytes() to format the various printf()s that print out memory sizes

Garbage-collect the VM_MBUF_SIZE constant.  Instead, use the size
(nmbclusters * mclbytes), so that the right amount of KVA space is
allocated if those variables are patched.

g/c REAL_CLISTS.

pull up 1.19 -> 1.20:
add a `flags' argument to uvm_pagealloc_strat().
define a flag UVM_PGA_USERESERVE to allow non-kernel object
allocations to use pages from the reserve.
use the new flag for allocations in pmap modules.

add a `flags' argument to uvm_pagealloc_strat().
define a flag UVM_PGA_USERESERVE to allow non-kernel object
allocations to use pages from the reserve.
use the new flag for allocations in pmap modules.

Don't call configure() from cpu_startup().

added kgdb support.

Changes for modified pmap_enter() API:
* Map the message buffer with access_type = VM_PROT_READ|VM_PROT_WRITE `just
  because'.
* Map the file system buffers with access_type = VM_PROT_READ|VM_PROT_WRITE to
  avoid possible problems with pagemove().
* Do not use VM_PROT_EXEC with either of the above.
* Map pages for /dev/mem with access_type = prot.  Also, DO NOT use
  pmap_kenter() for this, as we DO NOT want to lose modification information.
* Map pages in dumpsys() with VM_PROT_READ.
* Map pages in m68k mappedcopyin()/mappedcopyout() and writeback() with
  access_type = prot.
* For now, bus_dma*(), pmap_map(), vmapbuf(), and similar functions still use
  access_type = 0.  This should probably be revisited.

Applied patches from Matt Debergalis <deberg@mit.edu>.
These patches include:
  Added framebuffer mapping for color framebuffer to support color wscons
    which is coming soon.
  Renamed wskbdmap_mfii[ch] to wskbdmap_next[ch]
  Changed video to be white on black instead of black on white.
  Now handles and discards mouse interrupts.
  Video and keyboard is now working on mono machines.

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

defopt BUFCACHE and BUFPAGES.

Made reboot and halt work.

Added support for setting boothowto from boot loader flags.
print out string of `.' when powering down to work around ununderstood
behavior of rtc chip.

Garbage-collect `mbutl'.

Finished changes to use UVM on next68k.
Turn on UVM by default in GENERIC kernel.

Sync'ed more files and routines with mvme port in prepartion for UVM.
Now use generic m68k cachops everywhere rather than defining them in locore.s

Defopt SYSVMSG, SYSVSEM and SYSVSHM.

Updated many of the pmap files to use current versions from the
mvme68k port.  The next68k port now uses MACHINE_NEW_NONCONTIG.

Commented out some bus_dma code, until I can fix.
(bus_dma.c needs sync with alpha port!)
Continued progress on scsi driver.
A couple of other compiler warning level of tweaks.

defopt DDB.

Moved rom memory configuration reading code into nextrom.c from machdep.c

defopt COMPAT_HPUX

Add recent ddb_init() interface change.

Initial import of NetBSD/next68k.

Initial revision