CVS log for src/sys/arch/news68k/news68k/locore.s

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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.

Consistently use "intr_depth" as the name of the interrupt depth counter
on m68k platforms.

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

G/C __HAVE_LEGACY_INTRCNT from news68k.

No need for our own spurious interrupt handler now that m68k_intr.c
handles them for us.

Switch news68k over to the common interrupt dispatch code.

Switch news68k over to the common m68k vector table.

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

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.

Define values for the 68030 TT registers in terms of the definitions
in <m68k/mmu_30.h> rather than using magic numbers.

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.

Remove obsolete #if blocks.

Revert my changes regarding removal of FPSP related blocks.

After additional discussion it is preferred to keep code consistency,
to make it easier refactor common code between m68k ports.

Remove fpsp include and #ifdef FPSP blocks for news68k.
FPSP is necessary for 040/060 only, and news68k doesn't have such hardware.

Noted by Izumi Tsutsui.

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

Sync with HEAD.

Remove leftover of #undef statements.

These should have been removed in rev 1.55 back in 2010:
 https://mail-index.netbsd.org/source-changes/2010/12/20/msg016105.html
 http://cvsweb.netbsd.org/bsdweb.cgi/src/sys/arch/news68k/news68k/locore.s.diff?r1=1.54&r2=1.55

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, and also tested on NWS-1750.

Remove unused m68k_fault_addr, which is required only on mac68k for SBC.

It looks hp300 one was copied from mac68k in rev 1.75
and then it was pasted to other ports again and again.

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.

Add preliminary PROM internal function based framebuffer console support,
which was demonstrated at Open Source Conference 2011 Kansai @ Kyoto
back in July:
http://www.NetBSD.org/gallery/events.html#opensourceconf2011-Kansai

- map 0xc0000000-0xffffffff PA region (which is mirror of PA 0x0-0x3fffffff)
  to the same VA via %tt0 and %tt1 registers and move KVA space accordingly
  (like luna68k does for its devices)
- save trap #0 vector for PROM function calls in early bootstrap
  and register it to trap #14 to call it from kernel for console output
- add dumb romcall based tty attachment taken from src/sys/dev/ofw/ofcons.c
- add rom function call stubs from news68k/stand/common/romcalls.S
- remove IIOV() macro for device registers where now mapped PA==VA via %tt1

XXX: romcons is not enabled yet because there is no generic interface
XXX: to attach wskbd(4) to non wsdisplay(4) devices like this romcons.

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

Replace (???) comments to avoid false trigraph warnings by new as(1).

unifdef __ELF__

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@.

Move counting of faults, traps, intrs, soft[intr]s, syscalls, and nswtch
from uvmexp to per-cpu cpu_data and move them to 64bits.  Remove unneeded
includes of <uvm/uvm_extern.h> and/or <uvm/uvm.h>.

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.

Allow NetBSD/news68k kernel work with PGSHIFT==13, i.e. 8KB/page.
Tested on NWS-1750 with 68030.

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.
Tested on NWS-1750.

Kill proc0paddr.  Use lwp0.l_addr instead.

sync with head.

Sync with HEAD.

Sync with HEAD.

Tweak some comments and labels to sync with hp300.

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

Account idepth in functions in locore.s that are registered in the
interrupt vector table so that we don't have to track all interrupt paths.

sync with HEAD

Sync with HEAD.

Sync with HEAD.

sync with head

Sync with HEAD.

Interrupt handling changes, in discussion since February:

- Reduce available SPL levels for hardware devices to none, vm, sched, high.
- Acquire kernel_lock only for interrupts at IPL_VM.
- Implement threaded soft interrupts.

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 news68k to yamt-idlelwp. Tested on NWS-1750.

sync with head.

Implement generic softintr(9) support for news68k.
Mostly taken from mvme68k.

merge ktrace-lwp.

sync with -current

Sync with HEAD.

Hi Perry!

Sync with HEAD:
> - Rename ctrl_led in locore.s to ctrl_led_phys since it has
>   PA of CTRL_LED port.
> - Restore ctrl_led in machdep.c and store VA of CTRL_LED port to it.

> Disable temporary %tt0 register mapping (for yamt-km branch).

Disable temporary %tt0 register mapping (for yamt-km branch).

- Rename ctrl_led in locore.s to ctrl_led_phys since it has
  PA of CTRL_LED port.
- Restore ctrl_led in machdep.c and store VA of CTRL_LED port to it.

Sync with HEAD.

- Use macro for CTRL_POWER port
- Store machine dependent CTRL_LED address in ctrl_led
- Fix LED debug functions to use stored MD values

Actually I only used these debug routines at the very early porting stage
before I got working kernel printf. Heh.

XXX: news1200 has not been tested for many years.

Backout previous because:
- we should fix genassym.sh to generate proper unsigned values rather than
  remove use of such values in each source
- 0xe0dc0000 is port to control LED so INTIOBASE1700_OFF is not proper name
- these LED debug code didn't work on news1200 and it should be fixed anyway

Convert expression for (0xe0dc0000-INTIOBASE1700) directly within a cpp
macro as otherwise gas gets handed an X - -Y expression and w 2.15 it won't
treat that as a valid expression

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...)

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

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

Make sure to include opt_foo.h if a defflag option FOO is used.

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

Use PAGE_SIZE rather than NBPG.

TAB/space cleanup.

Merge the nathanw_sa branch.

Catch up to -current

finish conversion to the common m68k cacheops:
add support for machine-specific flavors of the ops for off-chip caches.
many thanks to Izumi Tsutsui for his help with this.

catch up with -current.

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.

Make this work with an ISO C preprocessor.

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

MD Scheduler Activation bits for News68k.
Compile-tested only.

update to -current

file locore.s was added on branch nathanw_sa on 2001-11-18 18:42:20 +0000

seperate -> separate

Catch up to -current.

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.

Fix a leftover comment.

Sync with HEAD.

Fix intrnames and intrcnt since there is no statclock on news68k.

Remove unused getsp().

Sync with HEAD.

Add drivers for keyboard and mouse.
(but no working framebuffer yet..)

Sync with HEAD

Correct error in previous -- not rev 1.16, but rev 1.17:
Pull up revision 1.13, 1.17 (requested by tsutsui, jhawk):
  Allow runtime enabling/disabling of DC_BE and IC_BE bits in %cacr
  and enable them on news1200/1400/1500 (Which have no L2 cache); yields
  a performance improvement. Also correct a typo in a comment.

Pull up revision 1.13, 1.16 (requested by tsutsui):
  Allow runtime enabling/disabling of DC_BE and IC_BE bits in %cacr
  and enable them on news1200/1400/1500 (Which have no L2 cache); yields
  a performance improvement. Also correct a typo in a comment.

Spell "physical" correctly in comment.

Sync with HEAD.

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

Sync with HEAD.

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.

file locore.s was added on branch thorpej_scsipi on 2000-11-20 20:16:15 +0000

Clear %fp to terminate backtrace on gdb.

Make it possible to enable/disable DC_BE and IC_BE bits in %cacr at runtime
and enable them on news1200/1400/1500 (which have no L2cache).

Clarify some intrnames.

Re-enable tt0 register temporary to map I/O space.
(for framebuffer support)

Add uvm_pageidlezero support. From x68k.

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.

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.

Use proper virtual address for some devices.
The transparent translation register is no longer required.

Use CTRL_AST interrupt to handle asynchronous trap.

Add news1200 support.
Based on a patch from Koichi NISHIWAKI <k-nis@ba2.so-net.ne.jp>

Pull up to last week's -current.

Initial import of news68k port.