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

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

Add some compile time asserts for endianness on boards/systems that
only support a single endianness.

s/reseting/resetting/

switch all ports to use uvm_init.c:uvm_md_init()

uvm_setpagesize() is now subsumed within this funciton.

branches: 1.30.2;
Just cpu_startup_common()

branches: 1.29.6;
use cpu_{g,s}etmodel

branches: 1.28.2; 1.28.4;
Remove reduntant/conflicting common declarations.

branches: 1.27.2; 1.27.6;
CLeanup machine includes

Revamp / rework the Atheros MIPS SoC support. Add initial support for the
AR71xx (MIPS 24K core) SoC and the AR9344 (MIPS 74K core) SoC. Force use
of -mips32 for all Atheros kernels. Make code much more common.

Merge forward from matt-nb5-mips64.

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@.

branches: 1.23.2; 1.23.4;
Make this compile again.

branches: 1.22.2;
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.

branches: 1.21.2;
Merge from matt-nb5-mips64
Merge mips-specific arch files.

- 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.

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)

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.

branches: 1.16.4;
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.

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.

branches: 1.13.2; 1.13.4; 1.13.10;
Replce exec_map with a pool. Proposed on tech-kern@, reviewed by chs@.

branches: 1.12.2;
Remove all initialization of obsolete ci_divisor_recip in
mips struct cpu_info and related macroes.
The member was prepared for a hack in MD microtime(9) implementation
but it has been superseded by MI timecounter(9).

branches: 1.11.2; 1.11.4; 1.11.6;
Fix a typo in a comment.

branches: 1.10.2; 1.10.6;
Fix typo in macro name and comments.

branches: 1.9.2; 1.9.8;
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: 1.8.10;
merge yamt-idlelwp branch. asked by core@. some ports still needs work.

from doc/BRANCHES:

idle lwp, and some changes depending on it.

1. separate context switching and thread scheduling.
(cf. gmcgarry_ctxsw)
2. implement idle lwp.
3. clean up related MD/MI interfaces.
4. make scheduler(s) modular.

branches: 1.7.2; 1.7.4; 1.7.10;
Fix some caddr_t rototill fallout.

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

branches: 1.5.4;
Initial import of AR2315 support, specifically the Meraki Mini (see
the Meraki web site at http://www.meraki.net/ ) This includes changes
to the AR5312 to make it more conducive to sharing code with the AR5315,
and also includes improved early console support.

All devices including ethernet and wlan interfaces on the Meraki Mini are
functional with this port, _except_ SPI flash, which will be introduced
later.

This port was funded by the Champaign-Urbana Communit Wireless Network
Project (CUWiN).

branches: 1.4.2; 1.4.4; 1.4.6;
First pass at cleanup AR5312 WiSoC support to enable better & cleaner
sharing of code with the AR5315, which has many similarities, but many
differences from the AR5312.

No functional change at this time, other than the cpu_model string
(and also sysctl.hw.model node) is changed to reflect the WiSoC cpu
name rather than the identification string in ROM (which tends to not
be very informative.)

branches: 1.3.4;
Import new HAL 0.9.17.2. Approved by sam@

New HAL includes some driver changes to register accesses.
Adds support for WLAN devices on AR5312 family devices.
Adds support 32-bit SPARC ath devices (untested).
ath enabled in SPARC64 GENERIC builds.
This HAL is tested and known to work for i386 PCI devices, SPARC64 PCI devices,
and AR5312 WiSoC devices. MIPS PCI devices appear to be busted (possibly only
on Alchemy hardware, unconfirmed), and cardbus support is untested due to
lack of test hardware.

Please report any new problems with this import to garrett@.

branches: 1.2.2; 1.2.4; 1.2.6; 1.2.8;
Remove declarations for cpu_model[] since it's in <sys/systm.h>.

branches: 1.1.2;
Initial import of Atheros AR531X SoC support. Currently the onboard ethernet
and serial ports are supported, and the system appears stable with an NFS
mounted root. An earlier version of the code was reviewed by simon@, but it
has since had numerous improvements and cleanups.


At the moment, only AR5312 is known to work, but I suspect AR2313 will work
as well. Later 2315/2316 parts are substantially different, and are not yet
supported. Wifi and Marvell switch support found on some designs are not yet
supported.

Platforms known to include AR5312 include Senao Aries 2 (AP5054) and Netgear
WGU624.

Add some compile time asserts for endianness on boards/systems that
only support a single endianness.

s/reseting/resetting/

switch all ports to use uvm_init.c:uvm_md_init()

uvm_setpagesize() is now subsumed within this funciton.

branches: 1.30.2;
Just cpu_startup_common()

branches: 1.29.6;
use cpu_{g,s}etmodel

branches: 1.28.2; 1.28.4;
Remove reduntant/conflicting common declarations.

branches: 1.27.2; 1.27.6;
CLeanup machine includes

Revamp / rework the Atheros MIPS SoC support. Add initial support for the
AR71xx (MIPS 24K core) SoC and the AR9344 (MIPS 74K core) SoC. Force use
of -mips32 for all Atheros kernels. Make code much more common.

Merge forward from matt-nb5-mips64.

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@.

branches: 1.23.2; 1.23.4;
Make this compile again.

branches: 1.22.2;
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.

branches: 1.21.2;
Merge from matt-nb5-mips64
Merge mips-specific arch files.

- 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.

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)

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.

branches: 1.16.4;
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.

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.

branches: 1.13.2; 1.13.4; 1.13.10;
Replce exec_map with a pool. Proposed on tech-kern@, reviewed by chs@.

branches: 1.12.2;
Remove all initialization of obsolete ci_divisor_recip in
mips struct cpu_info and related macroes.
The member was prepared for a hack in MD microtime(9) implementation
but it has been superseded by MI timecounter(9).

branches: 1.11.2; 1.11.4; 1.11.6;
Fix a typo in a comment.

branches: 1.10.2; 1.10.6;
Fix typo in macro name and comments.

branches: 1.9.2; 1.9.8;
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: 1.8.10;
merge yamt-idlelwp branch. asked by core@. some ports still needs work.

from doc/BRANCHES:

idle lwp, and some changes depending on it.

1. separate context switching and thread scheduling.
(cf. gmcgarry_ctxsw)
2. implement idle lwp.
3. clean up related MD/MI interfaces.
4. make scheduler(s) modular.

branches: 1.7.2; 1.7.4; 1.7.10;
Fix some caddr_t rototill fallout.

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

branches: 1.5.4;
Initial import of AR2315 support, specifically the Meraki Mini (see
the Meraki web site at http://www.meraki.net/ ) This includes changes
to the AR5312 to make it more conducive to sharing code with the AR5315,
and also includes improved early console support.

All devices including ethernet and wlan interfaces on the Meraki Mini are
functional with this port, _except_ SPI flash, which will be introduced
later.

This port was funded by the Champaign-Urbana Communit Wireless Network
Project (CUWiN).

branches: 1.4.2; 1.4.4; 1.4.6;
First pass at cleanup AR5312 WiSoC support to enable better & cleaner
sharing of code with the AR5315, which has many similarities, but many
differences from the AR5312.

No functional change at this time, other than the cpu_model string
(and also sysctl.hw.model node) is changed to reflect the WiSoC cpu
name rather than the identification string in ROM (which tends to not
be very informative.)

branches: 1.3.4;
Import new HAL 0.9.17.2. Approved by sam@

New HAL includes some driver changes to register accesses.
Adds support for WLAN devices on AR5312 family devices.
Adds support 32-bit SPARC ath devices (untested).
ath enabled in SPARC64 GENERIC builds.
This HAL is tested and known to work for i386 PCI devices, SPARC64 PCI devices,
and AR5312 WiSoC devices. MIPS PCI devices appear to be busted (possibly only
on Alchemy hardware, unconfirmed), and cardbus support is untested due to
lack of test hardware.

Please report any new problems with this import to garrett@.

branches: 1.2.2; 1.2.4; 1.2.6; 1.2.8;
Remove declarations for cpu_model[] since it's in <sys/systm.h>.

branches: 1.1.2;
Initial import of Atheros AR531X SoC support. Currently the onboard ethernet
and serial ports are supported, and the system appears stable with an NFS
mounted root. An earlier version of the code was reviewed by simon@, but it
has since had numerous improvements and cleanups.


At the moment, only AR5312 is known to work, but I suspect AR2313 will work
as well. Later 2315/2316 parts are substantially different, and are not yet
supported. Wifi and Marvell switch support found on some designs are not yet
supported.

Platforms known to include AR5312 include Senao Aries 2 (AP5054) and Netgear
WGU624.

s/reseting/resetting/

switch all ports to use uvm_init.c:uvm_md_init()

uvm_setpagesize() is now subsumed within this funciton.

branches: 1.30.2;
Just cpu_startup_common()

branches: 1.29.6;
use cpu_{g,s}etmodel

branches: 1.28.2; 1.28.4;
Remove reduntant/conflicting common declarations.

branches: 1.27.2; 1.27.6;
CLeanup machine includes

Revamp / rework the Atheros MIPS SoC support. Add initial support for the
AR71xx (MIPS 24K core) SoC and the AR9344 (MIPS 74K core) SoC. Force use
of -mips32 for all Atheros kernels. Make code much more common.

Merge forward from matt-nb5-mips64.

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@.

branches: 1.23.2; 1.23.4;
Make this compile again.

branches: 1.22.2;
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.

branches: 1.21.2;
Merge from matt-nb5-mips64
Merge mips-specific arch files.

- 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.

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)

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.

branches: 1.16.4;
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.

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.

branches: 1.13.2; 1.13.4; 1.13.10;
Replce exec_map with a pool. Proposed on tech-kern@, reviewed by chs@.

branches: 1.12.2;
Remove all initialization of obsolete ci_divisor_recip in
mips struct cpu_info and related macroes.
The member was prepared for a hack in MD microtime(9) implementation
but it has been superseded by MI timecounter(9).

branches: 1.11.2; 1.11.4; 1.11.6;
Fix a typo in a comment.

branches: 1.10.2; 1.10.6;
Fix typo in macro name and comments.

branches: 1.9.2; 1.9.8;
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: 1.8.10;
merge yamt-idlelwp branch. asked by core@. some ports still needs work.

from doc/BRANCHES:

idle lwp, and some changes depending on it.

1. separate context switching and thread scheduling.
(cf. gmcgarry_ctxsw)
2. implement idle lwp.
3. clean up related MD/MI interfaces.
4. make scheduler(s) modular.

branches: 1.7.2; 1.7.4; 1.7.10;
Fix some caddr_t rototill fallout.

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

branches: 1.5.4;
Initial import of AR2315 support, specifically the Meraki Mini (see
the Meraki web site at http://www.meraki.net/ ) This includes changes
to the AR5312 to make it more conducive to sharing code with the AR5315,
and also includes improved early console support.

All devices including ethernet and wlan interfaces on the Meraki Mini are
functional with this port, _except_ SPI flash, which will be introduced
later.

This port was funded by the Champaign-Urbana Communit Wireless Network
Project (CUWiN).

branches: 1.4.2; 1.4.4; 1.4.6;
First pass at cleanup AR5312 WiSoC support to enable better & cleaner
sharing of code with the AR5315, which has many similarities, but many
differences from the AR5312.

No functional change at this time, other than the cpu_model string
(and also sysctl.hw.model node) is changed to reflect the WiSoC cpu
name rather than the identification string in ROM (which tends to not
be very informative.)

branches: 1.3.4;
Import new HAL 0.9.17.2. Approved by sam@

New HAL includes some driver changes to register accesses.
Adds support for WLAN devices on AR5312 family devices.
Adds support 32-bit SPARC ath devices (untested).
ath enabled in SPARC64 GENERIC builds.
This HAL is tested and known to work for i386 PCI devices, SPARC64 PCI devices,
and AR5312 WiSoC devices. MIPS PCI devices appear to be busted (possibly only
on Alchemy hardware, unconfirmed), and cardbus support is untested due to
lack of test hardware.

Please report any new problems with this import to garrett@.

branches: 1.2.2; 1.2.4; 1.2.6; 1.2.8;
Remove declarations for cpu_model[] since it's in <sys/systm.h>.

branches: 1.1.2;
Initial import of Atheros AR531X SoC support. Currently the onboard ethernet
and serial ports are supported, and the system appears stable with an NFS
mounted root. An earlier version of the code was reviewed by simon@, but it
has since had numerous improvements and cleanups.


At the moment, only AR5312 is known to work, but I suspect AR2313 will work
as well. Later 2315/2316 parts are substantially different, and are not yet
supported. Wifi and Marvell switch support found on some designs are not yet
supported.

Platforms known to include AR5312 include Senao Aries 2 (AP5054) and Netgear
WGU624.

switch all ports to use uvm_init.c:uvm_md_init()

uvm_setpagesize() is now subsumed within this funciton.

Just cpu_startup_common()

branches: 1.29.6;
use cpu_{g,s}etmodel

branches: 1.28.2; 1.28.4;
Remove reduntant/conflicting common declarations.

branches: 1.27.2; 1.27.6;
CLeanup machine includes

Revamp / rework the Atheros MIPS SoC support. Add initial support for the
AR71xx (MIPS 24K core) SoC and the AR9344 (MIPS 74K core) SoC. Force use
of -mips32 for all Atheros kernels. Make code much more common.

Merge forward from matt-nb5-mips64.

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@.

branches: 1.23.2; 1.23.4;
Make this compile again.

branches: 1.22.2;
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.

branches: 1.21.2;
Merge from matt-nb5-mips64
Merge mips-specific arch files.

- 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.

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)

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.

branches: 1.16.4;
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.

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.

branches: 1.13.2; 1.13.4; 1.13.10;
Replce exec_map with a pool. Proposed on tech-kern@, reviewed by chs@.

branches: 1.12.2;
Remove all initialization of obsolete ci_divisor_recip in
mips struct cpu_info and related macroes.
The member was prepared for a hack in MD microtime(9) implementation
but it has been superseded by MI timecounter(9).

branches: 1.11.2; 1.11.4; 1.11.6;
Fix a typo in a comment.

branches: 1.10.2; 1.10.6;
Fix typo in macro name and comments.

branches: 1.9.2; 1.9.8;
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: 1.8.10;
merge yamt-idlelwp branch. asked by core@. some ports still needs work.

from doc/BRANCHES:

idle lwp, and some changes depending on it.

1. separate context switching and thread scheduling.
(cf. gmcgarry_ctxsw)
2. implement idle lwp.
3. clean up related MD/MI interfaces.
4. make scheduler(s) modular.

branches: 1.7.2; 1.7.4; 1.7.10;
Fix some caddr_t rototill fallout.

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

branches: 1.5.4;
Initial import of AR2315 support, specifically the Meraki Mini (see
the Meraki web site at http://www.meraki.net/ ) This includes changes
to the AR5312 to make it more conducive to sharing code with the AR5315,
and also includes improved early console support.

All devices including ethernet and wlan interfaces on the Meraki Mini are
functional with this port, _except_ SPI flash, which will be introduced
later.

This port was funded by the Champaign-Urbana Communit Wireless Network
Project (CUWiN).

branches: 1.4.2; 1.4.4; 1.4.6;
First pass at cleanup AR5312 WiSoC support to enable better & cleaner
sharing of code with the AR5315, which has many similarities, but many
differences from the AR5312.

No functional change at this time, other than the cpu_model string
(and also sysctl.hw.model node) is changed to reflect the WiSoC cpu
name rather than the identification string in ROM (which tends to not
be very informative.)

branches: 1.3.4;
Import new HAL 0.9.17.2. Approved by sam@

New HAL includes some driver changes to register accesses.
Adds support for WLAN devices on AR5312 family devices.
Adds support 32-bit SPARC ath devices (untested).
ath enabled in SPARC64 GENERIC builds.
This HAL is tested and known to work for i386 PCI devices, SPARC64 PCI devices,
and AR5312 WiSoC devices. MIPS PCI devices appear to be busted (possibly only
on Alchemy hardware, unconfirmed), and cardbus support is untested due to
lack of test hardware.

Please report any new problems with this import to garrett@.

branches: 1.2.2; 1.2.4; 1.2.6; 1.2.8;
Remove declarations for cpu_model[] since it's in <sys/systm.h>.

branches: 1.1.2;
Initial import of Atheros AR531X SoC support. Currently the onboard ethernet
and serial ports are supported, and the system appears stable with an NFS
mounted root. An earlier version of the code was reviewed by simon@, but it
has since had numerous improvements and cleanups.


At the moment, only AR5312 is known to work, but I suspect AR2313 will work
as well. Later 2315/2316 parts are substantially different, and are not yet
supported. Wifi and Marvell switch support found on some designs are not yet
supported.

Platforms known to include AR5312 include Senao Aries 2 (AP5054) and Netgear
WGU624.