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.

Re-factor the 680x0 Function Code definitions into their own
separate file (as was done on the sun2/sun3 ports ages ago)
and switch everyone to the common header.

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

G/C LS{SLEEP,RUN,ONPROC}

LWP status manipulation was moved out of assembly long ago.

branches: 1.35.6;
Remove compat_svr4 and compat_svr4_32, as discussed on tech-kern@ recently,
but also as discussed several times in the past.

branches: 1.34.28; 1.34.30;
Misc cosmetic changes to reduce diffs from other m68k ports.

- replace magic numbers with macro via genassym.cf
- include opt_fpu_emulate.h at the top
- use C-style comments
- add register '%' prefix in comments
- sync several comments
- indent adjustments etc.

No text binary changes. (only .global _KERNEL_OPT_FPU_EMULATE is moved)

branches: 1.33.8; 1.33.18; 1.33.22;
Retire struct user, remove sys/user.h inclusions. Note sys/user.h header
as obsolete. Remove USER_TO_UAREA/UAREA_TO_USER macros.

Various #include fixes and review by matt@.

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>.

branches: 1.31.4;
Rename L_ADDR to L_PCB and amend some comments accordingly.

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

Remove advertising clause for UCB in various genassym.cf files,
which were derived from genassym.c in 4.4BSD-Lite2 (or 386BSD).
Closes PR misc/39573. Approved by martin@.

branches: 1.28.4;
Remove ref to uvm.page_idle_zero

branches: 1.27.16; 1.27.18; 1.27.20; 1.27.22;
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.

branches: 1.26.10;
Adapt to the merge of yamt-idlelwp branch.
tested on my X68030.

branches: 1.25.30; 1.25.32; 1.25.38;
merge ktrace-lwp.

branches: 1.24.16;
Remove p_nras from struct proc - use LIST_EMPTY(&p->p_raslist) instead.
Remove p_raslock and rename p_lwplock p_lock (one lock is enough).
Simplify window test when adding a ras and correct test on VM_MAXUSER_ADDRESS.
Avoid unpredictable branch in i386 locore.S
(pad fields left in struct proc to avoid kernel bump)

SA_SIGINFO support for m68k (port specific changes)

branches: 1.22.2;
Use PAGE_SIZE rather than NBPG.

Merge the nathanw_sa branch.

Remove <sys/map.h>

use _KERNEL_OPT rather than _KERNEL && !_LKM

branches: 1.18.4;
Forgot to include <machine/bootinfo.h> for the new symbol added in the
previous commit.

Embed the version number of the interface between the bootloader and
kernel. See amiga.

branches: 1.16.2; 1.16.4;
Sync with amiga 1.15.
Make this compile again (when building the LKMs).

branches: 1.15.2;
Define proper macros for FP frame offsets rather than magic numbers.

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

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.

MD parts of uvm_pageidlezero.

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

branches: 1.10.2; 1.10.4; 1.10.6;
SVR4-related typo in previous.

Add COMPAT_SVR4 for m68k.

branches: 1.8.2; 1.8.4;
Mach VM removal.

Define SYS_compat_13_sigreturn13.

Make sure SYS_exit and SYS___sigreturn14 are defined. Garbage collect
SYS_sigreturn.

sync with -current after a long silence

Garbage-collect VM_PMAP.

Garbage-collect pm_stchanged.

Added FPU_68060

branches: 1.1.2;
Use genassym.cf to make assym.h

Re-factor the 680x0 Function Code definitions into their own
separate file (as was done on the sun2/sun3 ports ages ago)
and switch everyone to the common header.

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

G/C LS{SLEEP,RUN,ONPROC}

LWP status manipulation was moved out of assembly long ago.

branches: 1.35.6;
Remove compat_svr4 and compat_svr4_32, as discussed on tech-kern@ recently,
but also as discussed several times in the past.

branches: 1.34.28; 1.34.30;
Misc cosmetic changes to reduce diffs from other m68k ports.

- replace magic numbers with macro via genassym.cf
- include opt_fpu_emulate.h at the top
- use C-style comments
- add register '%' prefix in comments
- sync several comments
- indent adjustments etc.

No text binary changes. (only .global _KERNEL_OPT_FPU_EMULATE is moved)

branches: 1.33.8; 1.33.18; 1.33.22;
Retire struct user, remove sys/user.h inclusions. Note sys/user.h header
as obsolete. Remove USER_TO_UAREA/UAREA_TO_USER macros.

Various #include fixes and review by matt@.

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>.

branches: 1.31.4;
Rename L_ADDR to L_PCB and amend some comments accordingly.

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

Remove advertising clause for UCB in various genassym.cf files,
which were derived from genassym.c in 4.4BSD-Lite2 (or 386BSD).
Closes PR misc/39573. Approved by martin@.

branches: 1.28.4;
Remove ref to uvm.page_idle_zero

branches: 1.27.16; 1.27.18; 1.27.20; 1.27.22;
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.

branches: 1.26.10;
Adapt to the merge of yamt-idlelwp branch.
tested on my X68030.

branches: 1.25.30; 1.25.32; 1.25.38;
merge ktrace-lwp.

branches: 1.24.16;
Remove p_nras from struct proc - use LIST_EMPTY(&p->p_raslist) instead.
Remove p_raslock and rename p_lwplock p_lock (one lock is enough).
Simplify window test when adding a ras and correct test on VM_MAXUSER_ADDRESS.
Avoid unpredictable branch in i386 locore.S
(pad fields left in struct proc to avoid kernel bump)

SA_SIGINFO support for m68k (port specific changes)

branches: 1.22.2;
Use PAGE_SIZE rather than NBPG.

Merge the nathanw_sa branch.

Remove <sys/map.h>

use _KERNEL_OPT rather than _KERNEL && !_LKM

branches: 1.18.4;
Forgot to include <machine/bootinfo.h> for the new symbol added in the
previous commit.

Embed the version number of the interface between the bootloader and
kernel. See amiga.

branches: 1.16.2; 1.16.4;
Sync with amiga 1.15.
Make this compile again (when building the LKMs).

branches: 1.15.2;
Define proper macros for FP frame offsets rather than magic numbers.

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

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.

MD parts of uvm_pageidlezero.

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

branches: 1.10.2; 1.10.4; 1.10.6;
SVR4-related typo in previous.

Add COMPAT_SVR4 for m68k.

branches: 1.8.2; 1.8.4;
Mach VM removal.

Define SYS_compat_13_sigreturn13.

Make sure SYS_exit and SYS___sigreturn14 are defined. Garbage collect
SYS_sigreturn.

sync with -current after a long silence

Garbage-collect VM_PMAP.

Garbage-collect pm_stchanged.

Added FPU_68060

branches: 1.1.2;
Use genassym.cf to make assym.h

G/C

G/C LS{SLEEP,RUN,ONPROC}

LWP status manipulation was moved out of assembly long ago.

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

branches: 1.34.28; 1.34.30;
Misc cosmetic changes to reduce diffs from other m68k ports.

- replace magic numbers with macro via genassym.cf
- include opt_fpu_emulate.h at the top
- use C-style comments
- add register '%' prefix in comments
- sync several comments
- indent adjustments etc.

No text binary changes. (only .global _KERNEL_OPT_FPU_EMULATE is moved)

branches: 1.33.8; 1.33.18; 1.33.22;
Retire struct user, remove sys/user.h inclusions. Note sys/user.h header
as obsolete. Remove USER_TO_UAREA/UAREA_TO_USER macros.

Various #include fixes and review by matt@.

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>.

branches: 1.31.4;
Rename L_ADDR to L_PCB and amend some comments accordingly.

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

Remove advertising clause for UCB in various genassym.cf files,
which were derived from genassym.c in 4.4BSD-Lite2 (or 386BSD).
Closes PR misc/39573. Approved by martin@.

branches: 1.28.4;
Remove ref to uvm.page_idle_zero

branches: 1.27.16; 1.27.18; 1.27.20; 1.27.22;
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.

branches: 1.26.10;
Adapt to the merge of yamt-idlelwp branch.
tested on my X68030.

branches: 1.25.30; 1.25.32; 1.25.38;
merge ktrace-lwp.

branches: 1.24.16;
Remove p_nras from struct proc - use LIST_EMPTY(&p->p_raslist) instead.
Remove p_raslock and rename p_lwplock p_lock (one lock is enough).
Simplify window test when adding a ras and correct test on VM_MAXUSER_ADDRESS.
Avoid unpredictable branch in i386 locore.S
(pad fields left in struct proc to avoid kernel bump)

SA_SIGINFO support for m68k (port specific changes)

branches: 1.22.2;
Use PAGE_SIZE rather than NBPG.

Merge the nathanw_sa branch.

Remove <sys/map.h>

use _KERNEL_OPT rather than _KERNEL && !_LKM

branches: 1.18.4;
Forgot to include <machine/bootinfo.h> for the new symbol added in the
previous commit.

Embed the version number of the interface between the bootloader and
kernel. See amiga.

branches: 1.16.2; 1.16.4;
Sync with amiga 1.15.
Make this compile again (when building the LKMs).

branches: 1.15.2;
Define proper macros for FP frame offsets rather than magic numbers.

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

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.

MD parts of uvm_pageidlezero.

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

branches: 1.10.2; 1.10.4; 1.10.6;
SVR4-related typo in previous.

Add COMPAT_SVR4 for m68k.

branches: 1.8.2; 1.8.4;
Mach VM removal.

Define SYS_compat_13_sigreturn13.

Make sure SYS_exit and SYS___sigreturn14 are defined. Garbage collect
SYS_sigreturn.

sync with -current after a long silence

Garbage-collect VM_PMAP.

Garbage-collect pm_stchanged.

Added FPU_68060

branches: 1.1.2;
Use genassym.cf to make assym.h

G/C LS{SLEEP,RUN,ONPROC}

LWP status manipulation was moved out of assembly long ago.

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

branches: 1.34.28; 1.34.30;
Misc cosmetic changes to reduce diffs from other m68k ports.

- replace magic numbers with macro via genassym.cf
- include opt_fpu_emulate.h at the top
- use C-style comments
- add register '%' prefix in comments
- sync several comments
- indent adjustments etc.

No text binary changes. (only .global _KERNEL_OPT_FPU_EMULATE is moved)

branches: 1.33.8; 1.33.18; 1.33.22;
Retire struct user, remove sys/user.h inclusions. Note sys/user.h header
as obsolete. Remove USER_TO_UAREA/UAREA_TO_USER macros.

Various #include fixes and review by matt@.

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>.

branches: 1.31.4;
Rename L_ADDR to L_PCB and amend some comments accordingly.

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

Remove advertising clause for UCB in various genassym.cf files,
which were derived from genassym.c in 4.4BSD-Lite2 (or 386BSD).
Closes PR misc/39573. Approved by martin@.

branches: 1.28.4;
Remove ref to uvm.page_idle_zero

branches: 1.27.16; 1.27.18; 1.27.20; 1.27.22;
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.

branches: 1.26.10;
Adapt to the merge of yamt-idlelwp branch.
tested on my X68030.

branches: 1.25.30; 1.25.32; 1.25.38;
merge ktrace-lwp.

branches: 1.24.16;
Remove p_nras from struct proc - use LIST_EMPTY(&p->p_raslist) instead.
Remove p_raslock and rename p_lwplock p_lock (one lock is enough).
Simplify window test when adding a ras and correct test on VM_MAXUSER_ADDRESS.
Avoid unpredictable branch in i386 locore.S
(pad fields left in struct proc to avoid kernel bump)

SA_SIGINFO support for m68k (port specific changes)

branches: 1.22.2;
Use PAGE_SIZE rather than NBPG.

Merge the nathanw_sa branch.

Remove <sys/map.h>

use _KERNEL_OPT rather than _KERNEL && !_LKM

branches: 1.18.4;
Forgot to include <machine/bootinfo.h> for the new symbol added in the
previous commit.

Embed the version number of the interface between the bootloader and
kernel. See amiga.

branches: 1.16.2; 1.16.4;
Sync with amiga 1.15.
Make this compile again (when building the LKMs).

branches: 1.15.2;
Define proper macros for FP frame offsets rather than magic numbers.

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

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.

MD parts of uvm_pageidlezero.

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

branches: 1.10.2; 1.10.4; 1.10.6;
SVR4-related typo in previous.

Add COMPAT_SVR4 for m68k.

branches: 1.8.2; 1.8.4;
Mach VM removal.

Define SYS_compat_13_sigreturn13.

Make sure SYS_exit and SYS___sigreturn14 are defined. Garbage collect
SYS_sigreturn.

sync with -current after a long silence

Garbage-collect VM_PMAP.

Garbage-collect pm_stchanged.

Added FPU_68060

branches: 1.1.2;
Use genassym.cf to make assym.h

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

branches: 1.34.28;
Misc cosmetic changes to reduce diffs from other m68k ports.

- replace magic numbers with macro via genassym.cf
- include opt_fpu_emulate.h at the top
- use C-style comments
- add register '%' prefix in comments
- sync several comments
- indent adjustments etc.

No text binary changes. (only .global _KERNEL_OPT_FPU_EMULATE is moved)

branches: 1.33.8; 1.33.18; 1.33.22;
Retire struct user, remove sys/user.h inclusions. Note sys/user.h header
as obsolete. Remove USER_TO_UAREA/UAREA_TO_USER macros.

Various #include fixes and review by matt@.

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>.

branches: 1.31.4;
Rename L_ADDR to L_PCB and amend some comments accordingly.

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

Remove advertising clause for UCB in various genassym.cf files,
which were derived from genassym.c in 4.4BSD-Lite2 (or 386BSD).
Closes PR misc/39573. Approved by martin@.

branches: 1.28.4;
Remove ref to uvm.page_idle_zero

branches: 1.27.16; 1.27.18; 1.27.20; 1.27.22;
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.

branches: 1.26.10;
Adapt to the merge of yamt-idlelwp branch.
tested on my X68030.

branches: 1.25.30; 1.25.32; 1.25.38;
merge ktrace-lwp.

branches: 1.24.16;
Remove p_nras from struct proc - use LIST_EMPTY(&p->p_raslist) instead.
Remove p_raslock and rename p_lwplock p_lock (one lock is enough).
Simplify window test when adding a ras and correct test on VM_MAXUSER_ADDRESS.
Avoid unpredictable branch in i386 locore.S
(pad fields left in struct proc to avoid kernel bump)

SA_SIGINFO support for m68k (port specific changes)

branches: 1.22.2;
Use PAGE_SIZE rather than NBPG.

Merge the nathanw_sa branch.

Remove <sys/map.h>

use _KERNEL_OPT rather than _KERNEL && !_LKM

branches: 1.18.4;
Forgot to include <machine/bootinfo.h> for the new symbol added in the
previous commit.

Embed the version number of the interface between the bootloader and
kernel. See amiga.

branches: 1.16.2; 1.16.4;
Sync with amiga 1.15.
Make this compile again (when building the LKMs).

branches: 1.15.2;
Define proper macros for FP frame offsets rather than magic numbers.

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

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.

MD parts of uvm_pageidlezero.

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

branches: 1.10.2; 1.10.4; 1.10.6;
SVR4-related typo in previous.

Add COMPAT_SVR4 for m68k.

branches: 1.8.2; 1.8.4;
Mach VM removal.

Define SYS_compat_13_sigreturn13.

Make sure SYS_exit and SYS___sigreturn14 are defined. Garbage collect
SYS_sigreturn.

sync with -current after a long silence

Garbage-collect VM_PMAP.

Garbage-collect pm_stchanged.

Added FPU_68060

branches: 1.1.2;
Use genassym.cf to make assym.h