Remove KDIR=, since SYS_INCLUDE=symlinks and KDIR are not supported any more.

do not install footbridge_irqhandler.h

netwinder and cats can share irqhandler.h, so move (and rename) into the
footbridge dir, and share it.

branches: 1.1.2; 1.1.4; 1.1.6;
cats and netwinder can share a common footbridge_intr.h file, so install and
share a common file.

branches: 1.2.8;
Remove defopt EBSA285.
Move the files from footbridge that are cats specific.
Remove EBSA285 kernel as people should be able to use the generic cats kernel for EBSA285 systems.

Move the footbridge dir out of arm32 into arm.

lower case for hex numbers.
consistent #define<tab>
same binary before and after.

branches: 1.2.8;
Typo police: 28285 -> 21285
Also garbage collect the old kernel VM map defines for footbridge.

Move the footbridge dir out of arm32 into arm.

Fix for PR cats/18026.

cats was never able to dump a kernel core dump because reading from
VGA addresses (0xb8000) was causing the system to hang.

To workaround this reprogram the footbridge to map the memory to appear on
the PCI bus at 0x20000000, rather than at 0x0. Also configure the pci bus
to have a DMA range so that data is mapped correctly.

Note that -current kernels seem to hang when unmounting the fs. This
is a seperate issue, and appears to be because interrupts need to be
enabled to unmount filesystems.

So using reboot 0x104 does work, as it does a sync without unmounting the
filesystems.

Also arm savecore doesn't do anything with the memroy dump, as on arm we
currently just dump the raw memory, there's no header block to indicate
memory sizes or other useful information.

branches: 1.4.18; 1.4.76; 1.4.80; 1.4.82; 1.4.92; 1.4.96;
Merge the nathanw_sa branch.

Checkin new interrupt handling code for the footbridge.
This is based upon Jason's work on xscale.

Most of the interrupt handling code is now written in C using an asm stub to
call into the C code.

spl* now only updates a software mask, and does not update the hardware,
this should be much faster.

The new code works well on cats, it's untested on netwinder, but should work.

The code implements generic soft interrupts.

More work is still required to bring the isa interrupt handling code upto
scratch currently all isa interrupts are handled at IPL_BIO on the footbridge.
This may cause isa interrupts to be handled later than they should be.
I plan to fix this in the near future.

branches: 1.2.2;
Interrupt 19 does actually do something:
19 PMCSR written by host
(all to do with power management)

branches: 1.1.2; 1.1.8;
Move the footbridge dir out of arm32 into arm.

branches: 1.5.8;
Remove defopt EBSA285.
Move the files from footbridge that are cats specific.
Remove EBSA285 kernel as people should be able to use the generic cats kernel for EBSA285 systems.

`response', not `responce'

`accessible' only has one `a'.

Typo police: 28285 -> 21285
Also garbage collect the old kernel VM map defines for footbridge.

Move the footbridge dir out of arm32 into arm.

Remove unnecessary sys/malloc.h include

Trailing whitespace

Merge thorpej-cfargs2.

branches: 1.27.8;
Merge thorpej-cfargs branch:

Simplify and make extensible the config_search() / config_found() /
config_attach() interfaces: rather than having different variants for
which arguments you want pass along, just have a single call that
takes a variadic list of tag-value arguments.

Adjust all call sites:
- Simplify wherever possible; don't pass along arguments that aren't
actually needed.
- Don't be explicit about what interface attribute is attaching if
the device only has one. (More simplification.)
- Add a config_probe() function to be used in indirect configuiration
situations, making is visibly easier to see when indirect config is
in play, and allowing for future change in semantics. (As of now,
this is just a wrapper around config_match(), but that is an
implementation detail.)

Remove unnecessary or redundant interface attributes where they're not
needed.

There are currently 5 "cfargs" defined:
- CFARG_SUBMATCH (submatch function for direct config)
- CFARG_SEARCH (search function for indirect config)
- CFARG_IATTR (interface attribte)
- CFARG_LOCATORS (locators array)
- CFARG_DEVHANDLE (devhandle_t - wraps OFW, ACPI, etc. handles)

...and a sentinel value CFARG_EOL.

Add some extra sanity checking to ensure that interface attributes
aren't ambiguous.

Use CFARG_DEVHANDLE in MI FDT, OFW, and ACPI code, and macppc and shark
ports to associate those device handles with device_t instance. This
will trickle trough to more places over time (need back-end for pre-OFW
Sun OBP; any others?).

branches: 1.26.52;
Update comments to reflect the real function prototypes.

From chuq.

branches: 1.25.2; 1.25.12;
#include <sys/bus.h> instead of <machine/bus.h>.

PCI_FLAGS_IO_ENABLED and PCI_FLAGS_MEM_ENABLED changed their functional
role in NetBSD (drivers are no longer supposed to write these to
pa_flags) without changing name. Correct that.

Rename PCI_FLAGS_IO_ENABLED to PCI_FLAGS_IO_OKAY and
PCI_FLAGS_MEM_ENABLED to PCI_FLAGS_MEM_OKAY, thus making their names
consistent with the other PCI flags and poisoning 3rd-party driver
sources that use the flags in the old bad way.

This patch produces no binary changes in this set of PCI kernels when
they are compiled w/o 'options DIAGNOSTIC' and w/ -V MKREPRO=yes:

algor P4032 P5064 P6032
alpha GENERIC
amd64 GENERIC XEN3_DOM0
arc GENERIC
atari HADES MILAN-PCIIDE
bebox GENERIC
cats GENERIC
cobalt GENERIC
evbarm-el ADI_BRH ARMADILLO9 CP3100 GEMINI GEMINI_MASTER GEMINI_SLAVE
evbarm-el GUMSTIX HDL_G IMX31LITE INTEGRATOR IQ31244 IQ80310 IQ80321
evbarm-el IXDP425 IXM1200 KUROBOX_PRO
evbarm-el LUBBOCK MARVELL_NAS NAPPI NSLU2 SHEEVAPLUG SMDK2800 TEAMASA_NPWR
evbarm-el TEAMASA_NPWR_FC TS7200 TWINTAIL ZAO425
evbmips-el AP30 DBAU1500 DBAU1550 MALTA MERAKI MTX-1 OMSAL400 RB153 WGT624V3
evbmips64-el XLSATX
evbppc EV64260 MPC8536DS MPC8548CDS OPENBLOCKS200 OPENBLOCKS266
evbppc OPENBLOCKS266_OPT P2020RDB PMPPC RB800 WALNUT
hp700 GENERIC
i386 ALL XEN3_DOM0 XEN3_DOMU
ibmnws GENERIC
iyonix GENERIC
landisk GENERIC
macppc GENERIC
mvmeppc GENERIC
netwinder GENERIC
ofppc GENERIC
prep GENERIC
sandpoint GENERIC
sbmips-el GENERIC
sgimips GENERIC32_IP2x GENERIC32_IP3x
sparc GENERIC_SUN4U KRUPS
sparc64 GENERIC

branches: 1.23.2;
Comment KNF.

Remove commented out setting of SDRAM_MEMORY_ADDR - it's set later on.

branches: 1.21.4;
device_t/softc split
CFATTACH_DECL -> CFATTACH_DECL_NEW
struct device * -> device_t
struct cfdata * -> cfdata_t
Use aprint*

Change about 4500 of the K&R function definitions to ANSI ones.
There are still about 1600 left, but they have ',' or /* ... */
in the actual variable definitions - which my awk script doesn't handle.
There are also many that need () -> (void).
(The script does handle misordered arguments.)

Remove all the __P() from sys (excluding sys/dist)
Diff checked with grep and MK1 eyeball.
i386 and amd64 GENERIC and sys still build.

branches: 1.18.10; 1.18.18; 1.18.24;
Fix for PR cats/18026.

cats was never able to dump a kernel core dump because reading from
VGA addresses (0xb8000) was causing the system to hang.

To workaround this reprogram the footbridge to map the memory to appear on
the PCI bus at 0x20000000, rather than at 0x0. Also configure the pci bus
to have a DMA range so that data is mapped correctly.

Note that -current kernels seem to hang when unmounting the fs. This
is a seperate issue, and appears to be because interrupts need to be
enabled to unmount filesystems.

So using reboot 0x104 does work, as it does a sync without unmounting the
filesystems.

Also arm savecore doesn't do anything with the memroy dump, as on arm we
currently just dump the raw memory, there's no header block to indicate
memory sizes or other useful information.

branches: 1.17.20; 1.17.24; 1.17.26; 1.17.34; 1.17.38;
Add generic TOD support. From Bucky Katz.

branches: 1.16.20; 1.16.24;
merge ktrace-lwp.

branches: 1.15.12;
Phase out the use of a string as first "attach args" member to control
which bustype should be attached with a specific call to config_found()
(from a "mainbus" or a bus bridge).
Do it for isa/eisa/mca and pci/agp for now. These buses all attach to
an mi interface attribute "isabus", "eisabus" etc., and the autoconf
framework now allows to specify an interface attribute on config_found()
and config_search(), which limits the search of matching config data
to these which attach to that specific attribute.
So we basically have to call config_found_ia(..., "foobus", ...) where
such a bus is attached.
As a consequence, where a "mainbus" or alike also attaches other
devices (eg CPUs) which do not attach to a specific attribute yet,
we need at least pass an attribute name (different from "foobus") so
that the foo bus is not found at these places. This made some minor
changes necessary which are not obviously related to the mentioned buses.

branches: 1.14.2;
Handle 64bit DMA addresses on PCI for platforms that can (currently only
enabled on amd64). Add a dmat64 field to various PCI attach structures,
and pass it down where needed. Implement a simple new function called
pci_dma64_available(pa) to test if 64bit DMA addresses may be used.
This returns 1 iff _PCI_HAVE_DMA64 is defined in <machine/pci_machdep.h>,
and there is more than 4G of memory.

Add __KERNEL_RCSID tags to footbridge files.

Use aprint_normal() for cfprint routines.

Checkin new interrupt handling code for the footbridge.
This is based upon Jason's work on xscale.

Most of the interrupt handling code is now written in C using an asm stub to
call into the C code.

spl* now only updates a software mask, and does not update the hardware,
this should be much faster.

The new code works well on cats, it's untested on netwinder, but should work.

The code implements generic soft interrupts.

More work is still required to bring the isa interrupt handling code upto
scratch currently all isa interrupts are handled at IPL_BIO on the footbridge.
This may cause isa interrupts to be handled later than they should be.
I plan to fix this in the near future.

branches: 1.10.2;
Use CFATTACH_DECL().

Declare all cfattach structures const.

remove trailing \n in panic(). approved perry.

* Add "pcitag_t *pba_bridgetag" to pci_attach_args. This is set to
NULL for root PCI busses. For busses behind a bridge, it points to
a persistent copy of the bridge's pcitag_t. This can be very useful
for machine-dependent PCI bus enumeration code.
* Implement a machine-dependent pci_enumerate_bus() for sparc64 which
uses OFW device nodes to enumerate the bus. When a PCI bus that is
behind a bridge is attached, pci_attach_hook() allocates a new PCI
chipset tag for the new bus and sets it's "curnode" to the OFW node
of the bridge. This is used as a starting point when enumerating
that bus. Root busses get the OFW node of the host bridge (psycho).
* Garbage-collect "ofpci" and "ofppb" from the sparc64 port.

branches: 1.6.2;
Implement a proper delay routine for footbridge based systems. Note that
until the footbridge is attached we still have to rely on a loop. This
uses TIMER_3 running at 100Hz.
Sadly this doesn't appear to fix the tlp problems, which either means that this
delay routine is not as accurate as it should/could be or tlp is still broken.

Centralize ARM CPU configuration information by adding a new header
file, <arm/cpuconf.h>, which pulls in "opt_cputypes.h" and then defines
the following:
* CPU_NTYPES -- now many CPU types are configured into the kernel. What
you really want to know is "== 1" or "> 1".
* Defines ARM_ARCH_2, ARM_ARCH_3, ARM_ARCH_4, ARM_ARCH_5, depending
on which ARM architecture versions are configured (based on CPU_*
options). Also defines ARM_NARCH to determins how many architecture
versions are configured.
* Defines ARM_MMU_MEMC, ARM_MMU_GENERIC, ARM_MMU_XSCALE depending on
which classes of ARM MMUs are configured into the kernel, and ARM_NMMUS
to determine how many MMU classes are configured.

Remove the needless inclusion of "opt_cputypes.h" in several places.
Convert remaining users to <arm/cpuconf.h>.

Make some of the arm32 files build with LOOSE_PROTOTYPES not set in the makefile. Turned up a few mismatched functions. Note that this isn't all of the arm32 files. Aim will be to get arm32 kernels built with LOOSE_PROTOTYPES not set.

Use <arm/cpufunc.h>, not <machine/cpufunc.h>.

branches: 1.2.6;
Change <machine/irqhandler.h> to <machine/intr.h> since the latter always
includes the former and is a standard include file.

branches: 1.1.2;
Move the footbridge dir out of arm32 into arm.

#include <sys/bus.h> instead of <machine/bus.h>.

Remove all the __P() from sys (excluding sys/dist)
Diff checked with grep and MK1 eyeball.
i386 and amd64 GENERIC and sys still build.

branches: 1.2.120; 1.2.128; 1.2.134;
Implement a proper delay routine for footbridge based systems. Note that
until the footbridge is attached we still have to rely on a loop. This
uses TIMER_3 running at 100Hz.
Sadly this doesn't appear to fix the tlp problems, which either means that this
delay routine is not as accurate as it should/could be or tlp is still broken.

branches: 1.1.2; 1.1.4;
Make some of the arm32 files build with LOOSE_PROTOTYPES not set in the makefile. Turned up a few mismatched functions. Note that this isn't all of the arm32 files. Aim will be to get arm32 kernels built with LOOSE_PROTOTYPES not set.

Fix various typos in comments.

Trailing whitespace

device_t/softc split
CFATTACH_DECL -> CFATTACH_DECL_NEW
struct device * -> device_t
struct cfdata * -> cfdata_t
Use aprint*

Fix kernel boot issue on cats.

The delay(9) loop, used before the clock device is probed and a hardware timer
is available, was out by a factor of 625.

This wasn't an issue until revision 1.45 of sys/dev/ic/pckbc.c which switched
to using delay(9) when polling the keyboard controller.

Cats attaches the console (and pckbc) before the clock has been probed, and so
the delay loop code is used causing issue with the keyboard polling.

branches: 1.24.14; 1.24.18; 1.24.20; 1.24.24;
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.

branches: 1.23.10; 1.23.26; 1.23.28; 1.23.30; 1.23.32; 1.23.38;
Convert netwinder and cats (and any other footbridge based system in the
future) to timecounters, using the dc21285_fclk. ok nick@, chris@.

ANSIfy, and KNF fixes.

branches: 1.21.8;
Simplify delay loop by moving the maths to before the loop.
There is minimal risk of overflow unless something delays >134s.

branches: 1.20.4; 1.20.6; 1.20.8; 1.20.10; 1.20.12;
merge ktrace-lwp.

branches: 1.19.2;
Adapt to shadowing and qualifier-cast warnings.

Add SA_SIGINFO support for ARM (from Chris Gilbert).

branches: 1.17.2;
Add __KERNEL_RCSID tags to footbridge files.

Merge the nathanw_sa branch.

Checkin new interrupt handling code for the footbridge.
This is based upon Jason's work on xscale.

Most of the interrupt handling code is now written in C using an asm stub to
call into the C code.

spl* now only updates a software mask, and does not update the hardware,
this should be much faster.

The new code works well on cats, it's untested on netwinder, but should work.

The code implements generic soft interrupts.

More work is still required to bring the isa interrupt handling code upto
scratch currently all isa interrupts are handled at IPL_BIO on the footbridge.
This may cause isa interrupts to be handled later than they should be.
I plan to fix this in the near future.

Initialize statprev in setstatclockrate().

branches: 1.13.2;
Fix thinko from this morning, delay is reentrant, so resetting the timer
to 0 on entry will confuse any already running delay.

Minor tweaks to footbridge's delay, always reset the timer when starting delay run (and set last to the counter value).
When the read value is 0, reset the timer (don't wait till the next loop round to reset it)
Add a bit of debug to the calibration stuff to make sure its working ok.

Add random jitter to stat clock, the random jitter is +- 511 usec's, so
we should average the nominal clock rate.

stathz now runs at hz (the hard clock hz), without getting high amounts of
time in interrupt handling.

Use CFATTACH_DECL().

Enable the use of a seperate statclock.

Currently statclock runs at 64hz, maybe it should be faster or slower, I did
try it being the same as hz, but that just made it look like we spent 10% of
time handling interrupts, rather than the 3% that this gives.

Also fix the IPL_LEVELS for netwinder.

Declare all cfattach structures const.

remove trailing \n in panic(). approved perry.

Implement a proper delay routine for footbridge based systems. Note that
until the footbridge is attached we still have to rely on a loop. This
uses TIMER_3 running at 100Hz.
Sadly this doesn't appear to fix the tlp problems, which either means that this
delay routine is not as accurate as it should/could be or tlp is still broken.

Fix off-by-one error in delay().

Make some of the arm32 files build with LOOSE_PROTOTYPES not set in the makefile. Turned up a few mismatched functions. Note that this isn't all of the arm32 files. Aim will be to get arm32 kernels built with LOOSE_PROTOTYPES not set.

Use <arm/cpufunc.h>, not <machine/cpufunc.h>.

branches: 1.2.6;
Change <machine/irqhandler.h> to <machine/intr.h> since the latter always
includes the former and is a standard include file.

branches: 1.1.2;
Move the footbridge dir out of arm32 into arm.

Trailing whitespace

malloc(9) -> kmem(9)

branches: 1.38.40;
Add d_discard to all struct cdevsw instances I could find.

All have been set to "nodiscard"; some should get a real implementation.

branches: 1.37.2;
Change (mostly mechanically) every cdevsw/bdevsw I can find to use
designated initializers.

I have not built every extant kernel so I have probably broken at
least one build; however I've also found and fixed some wrong
cdevsw/bdevsw entries so even if so I think we come out ahead.

Remove unused variables.

branches: 1.35.2;
Update comments to reflect the real function prototypes.

From chuq.

branches: 1.34.2; 1.34.12;
#include <sys/bus.h> instead of <machine/bus.h>.

Rename ttymalloc() to tty_alloc(), and ttyfree() to tty_free() for
consistency. Remove some unnecessary malloc.h inclusions as well.

branches: 1.32.4; 1.32.6;
device_t/softc split
CFATTACH_DECL -> CFATTACH_DECL_NEW
struct device * -> device_t
struct cfdata * -> cfdata_t
Use aprint*

ANSIfy another 1261 function definitions.
The only ones left in sys are beyond by sed script!
(or in sys/dist or sys/external)
Mostly they have function pointer parameters.

Change about 4500 of the K&R function definitions to ANSI ones.
There are still about 1600 left, but they have ',' or /* ... */
in the actual variable definitions - which my awk script doesn't handle.
There are also many that need () -> (void).
(The script does handle misordered arguments.)

Remove all the __P() from sys (excluding sys/dist)
Diff checked with grep and MK1 eyeball.
i386 and amd64 GENERIC and sys still build.

branches: 1.28.4; 1.28.10;
use device_lookup_private to get softc

branches: 1.27.14; 1.27.16; 1.27.18; 1.27.20; 1.27.22;
- Factor out too many copies of the same bit of tty code.
- Fix another tty signalling/wakeup problem.

branches: 1.26.2;
Initialise the callbacks for tty.t_rstrt_ch in ttymalloc
as all drivers but Sun/SPARC's kd.c use the same arguments.
Separate callout_reset into callout_schedule and the initial
callout_setfunc using that.

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: 1.24.6; 1.24.8; 1.24.10; 1.24.12; 1.24.16;
Merge some of the less invasive changes from the vmlocking branch:

- kthread, callout, devsw API changes
- select()/poll() improvements
- miscellaneous MT safety improvements

branches: 1.23.2; 1.23.4; 1.23.10;
Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

branches: 1.22.4;
More from Matt Fleming:

Adapt to KAUTH_DEVICE_TTY_PRIVSET and KAUTH_DEVICE_TTY_OPEN.

Adapt MD code to KAUTH_DEVICE_TTY_OPEN. Patch from Matt Fleming, thanks!

branches: 1.20.4; 1.20.6;
Use the LWP cached credentials where sane.

integrate kauth.

Use device_unit().

branches: 1.17.2; 1.17.4;
Delete the local definitions of CLR, SET and ISSET, since they are
now in <sys/types.h>.

branches: 1.16.4; 1.16.6; 1.16.8;
merge ktrace-lwp.

branches: 1.15.2; 1.15.18;
Back out the lwp/ktrace changes. They contained a lot of colateral damage,
and need to be examined and discussed more.

Fixes to get cats build going following proc to lwp changes.

Add __KERNEL_RCSID tags to footbridge files.

Add NULL cn_halt and cn_flush entries to consdevs. Hi Matt!

Dump DDB_* and SYMTAB_SPACE options to opt_ddbparam.h rather than opt_ddb.h.
These options are used in limited files but #include "opt_ddb.h" are
everywhere, and changing them caused almost full recompilation.

Checkin new interrupt handling code for the footbridge.
This is based upon Jason's work on xscale.

Most of the interrupt handling code is now written in C using an asm stub to
call into the C code.

spl* now only updates a software mask, and does not update the hardware,
this should be much faster.

The new code works well on cats, it's untested on netwinder, but should work.

The code implements generic soft interrupts.

More work is still required to bring the isa interrupt handling code upto
scratch currently all isa interrupts are handled at IPL_BIO on the footbridge.
This may cause isa interrupts to be handled later than they should be.
I plan to fix this in the near future.

merge kqueue branch into -current

kqueue provides a stateful and efficient event notification framework
currently supported events include socket, file, directory, fifo,
pipe, tty and device changes, and monitoring of processes and signals

kqueue is supported by all writable filesystems in NetBSD tree
(with exception of Coda) and all device drivers supporting poll(2)

based on work done by Jonathan Lemon for FreeBSD
initial NetBSD port done by Luke Mewburn and Jason Thorpe

branches: 1.8.2;
Use CFATTACH_DECL().

Declare all cfattach structures const.

remove trailing \n in panic(). approved perry.

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.

branches: 1.4.4;
Convert ioctl code to use EPASSTHROUGH instead of -1 or ENOTTY for
indicating an unhandled "command". ERESTART is -1, which can lead to
confusion. ERESTART has been moved to -3 and EPASSTHROUGH has been
placed at -4. No ioctl code should now return -1 anywhere. The
ioctl() system call is now properly restartable.

Make some of the arm32 files build with LOOSE_PROTOTYPES not set in the makefile. Turned up a few mismatched functions. Note that this isn't all of the arm32 files. Aim will be to get arm32 kernels built with LOOSE_PROTOTYPES not set.

branches: 1.2.2; 1.2.6;
Change <machine/irqhandler.h> to <machine/intr.h> since the latter always
includes the former and is a standard include file.

branches: 1.1.2;
Move the footbridge dir out of arm32 into arm.

Trailing whitespace

use designated initializer to make adaptability and flexibility for changing struct bus_space.
no functional change.

branches: 1.8.46;
Change old-style function defintions to C89 prototypes.

Approved by releng.

branches: 1.7.2; 1.7.6;
#include <sys/bus.h> instead of <machine/bus.h>.

ANSIfy another 1261 function definitions.
The only ones left in sys are beyond by sed script!
(or in sys/dist or sys/external)
Mostly they have function pointer parameters.

branches: 1.5.110; 1.5.118; 1.5.124;
Add __KERNEL_RCSID tags to footbridge files.

remove trailing \n in panic(). approved perry.

Use the bus_space_generic bus space ops.

branches: 1.2.4;
Add stubs for mmap to footbridge, must implement proper mmap real soon.

branches: 1.1.2; 1.1.4;
Move the footbridge dir out of arm32 into arm.

Use the bus_space_generic bus space ops.

branches: 1.1.2; 1.1.8;
Move the footbridge dir out of arm32 into arm.

Trailing whitespace

Remove <sys/param.h> include and assume users already include that.
Removes an include cycle when including <sys/resource.h> via:
ys/time.h, sys/timevar.h, sys/mutex.h, sys/intr.h on top of this
file, and sys/param.h, uvm/uvm_param.h, sys/resourcevar.h below.

branches: 1.20.14;
include <sys/param.h> for the cddl proc.h vs our lwp.h.

this fixes build issues with cats/netwinder since the zfs/dtrace update.

branches: 1.19.16;
protect locore.

Move the ipl_cookie_t definition earlier, since the mutex internal impl
uses it.

This is a mess:

-> sys/mutex.h -> sys/intr.h -> machine/intr.h -> footbridge/footbridge_intr.h
-> arm/cpu.h -> sys/cpu_data.h -> sys/sched.h -> sys/time.h -> sys/timevar.h
-> sys/systm.h -> sys/param.h -> uvm_param.h -> sys/resourcevar.h

Now sys/resourcevar.h needs a concrete definition of kmutex_t, and
although we started including sys/mutex.h we never got to include
machine/mutex.h which actually defines it, since the footbridge_intr.h
took us for a long ride. Take the easy way out and include
arm/mutex.h in footbridge_intr.h so that we get the definition we
need.

branches: 1.16.6;
_setsoftintr is long dead. reap any leftovers from arm.

branches: 1.15.2; 1.15.4;
Remove unused __NEWINTR defines

branches: 1.14.12;
Allow kern_ssp.c to build. That file includes <sys/intr.h> without
first including <sys/cpu.h>, so include <arm/cpu.h> here so that
curcpl() and set_curcpl() are declared before they are used.

branches: 1.13.8; 1.13.10; 1.13.14;
Merge kernel changes in matt-armv6 to HEAD.

branches: 1.12.6; 1.12.8; 1.12.10;
Header cleanup.

branches: 1.11.6;
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.

branches: 1.10.2; 1.10.16; 1.10.18; 1.10.20; 1.10.22; 1.10.28;
Make ipl_t and ipl_cookie_t 8-bit values. kmutex is now down to 12 bytes
(from 20) on ARM.

Approved by Matt Thomas.

branches: 1.9.2;
merge yamt-splraiseipl branch.

- finish implementing splraiseipl (and makeiplcookie).
http://mail-index.NetBSD.org/tech-kern/2006/07/01/0000.html
- complete workqueue(9) and fix its ipl problem, which is reported
to cause audio skipping.
- fix netbt (at least compilation problems) for some ports.
- fix PR/33218.

branches: 1.8.8; 1.8.10;
Use __insn_barrier() to prevent the compiler reordering splx/splraise
relative to the code they're supposed to protect.

branches: 1.7.2; 1.7.4; 1.7.6; 1.7.8; 1.7.10;
implement splraiseipl() for the following ports.
evbarm, iyonix, cats, netwinder, acorn26

reviewed by Bill Studenmund.

branches: 1.6.2;
Remove leading __ from __(const|inline|signed|volatile) -- it is obsolete.

branches: 1.5.18;
Rename IPL_IMP -> IPL_VM.

Use the generic irq_dispatch.S

Belatedly correct the copyright notice. I ported the new footbridge IRQ code
from the xscale interrupt code, it therefore should have Jason/Wasabi
copyright.

There is none of the original arm32 derived interrupt code here.

Checkin new interrupt handling code for the footbridge.
This is based upon Jason's work on xscale.

Most of the interrupt handling code is now written in C using an asm stub to
call into the C code.

spl* now only updates a software mask, and does not update the hardware,
this should be much faster.

The new code works well on cats, it's untested on netwinder, but should work.

The code implements generic soft interrupts.

More work is still required to bring the isa interrupt handling code upto
scratch currently all isa interrupts are handled at IPL_BIO on the footbridge.
This may cause isa interrupts to be handled later than they should be.
I plan to fix this in the near future.

branches: 1.1.2; 1.1.4; 1.1.6;
cats and netwinder can share a common footbridge_intr.h file, so install and
share a common file.

s/boundries/boundaries/, s/itterate/iterate/ and few more typos.

Trailing whitespace

use designated initializer to make adaptability and flexibility for changing struct bus_space.
no functional change.

branches: 1.23.4;
Use devmap if available

branches: 1.22.6; 1.22.22;
Don't manipulate the pte to get uncached memory, use PMAP_NOCACHE instead.
Convert footbring to kenter_pa/kremove

branches: 1.21.6; 1.21.10;
Change old-style function defintions to C89 prototypes.

Approved by releng.

branches: 1.20.2; 1.20.6;
#include <sys/bus.h> instead of <machine/bus.h>.

Fix thinko in previous.

Implement footbridge_io_bs_mmap.

Whitespace.

branches: 1.16.4;
Fix ancient bug. footbridge_mem_bs_mmap should return a page number.

ANSIfy another 1261 function definitions.
The only ones left in sys are beyond by sed script!
(or in sys/dist or sys/external)
Mostly they have function pointer parameters.

branches: 1.14.20; 1.14.28; 1.14.34;
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: 1.13.6; 1.13.8;
Implement footbridge_mem_bs_mmap. Needed for mmaping igsfb(4)
framebuffer on netwinder.

branches: 1.12.24; 1.12.30; 1.12.38; 1.12.40; 1.12.42; 1.12.44;
bus_dmamem_map: honour BUS_DMA_NOWAIT. noted by Manuel Bouyer.
bus_space_map: always do NOWAIT allocation as it used to be before yamt-km.

we have too many copies!

branches: 1.11.6;
When the footbridge does a bus space mapping it should default to
making the mapping not cacheable, and only allow caching if the relevant
flag is passed in.

This doesn't seem to fix, or break anything, but it matches the expected
bus space API.

branches: 1.10.2;
merge yamt-km branch.
- don't use managed mappings/backing objects for wired memory allocations.
save some resources like pv_entry. also fix (most of) PR/27030.
- simplify kernel memory management API.
- simplify pmap bootstrap of some ports.
- some related cleanups.

branches: 1.9.2; 1.9.10; 1.9.12;
Use PAGE_SIZE rather than NBPG.

Add __KERNEL_RCSID tags to footbridge files.

remove trailing \n in panic(). approved perry.

Use the bus_space_generic bus space ops.

Make some of the arm32 files build with LOOSE_PROTOTYPES not set in the makefile. Turned up a few mismatched functions. Note that this isn't all of the arm32 files. Aim will be to get arm32 kernels built with LOOSE_PROTOTYPES not set.

branches: 1.4.4;
Add stubs for mmap to footbridge, must implement proper mmap real soon.

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.

branches: 1.2.2;
A couple of tidy ups to pmap:
pmap_t -> struct pmap * in pmap.c and pmap.h
kernel_pmap -> pmap_kernel() everywhere.

Compiled and booted on riscpc and cats.

branches: 1.1.2;
Move the footbridge dir out of arm32 into arm.

Use the bus_space_generic bus space ops.

branches: 1.1.2; 1.1.8;
Move the footbridge dir out of arm32 into arm.

Use the generic irq_dispatch.S

Garbage-collect prev_intr_depth; nothing uses it.

Checkin new interrupt handling code for the footbridge.
This is based upon Jason's work on xscale.

Most of the interrupt handling code is now written in C using an asm stub to
call into the C code.

spl* now only updates a software mask, and does not update the hardware,
this should be much faster.

The new code works well on cats, it's untested on netwinder, but should work.

The code implements generic soft interrupts.

More work is still required to bring the isa interrupt handling code upto
scratch currently all isa interrupts are handled at IPL_BIO on the footbridge.
This may cause isa interrupts to be handled later than they should be.
I plan to fix this in the near future.

branches: 1.3.2;
Continue the " - . - 8" purge. Specifically:

add rd, pc, #foo - . - 8 -> adr rd, foo
ldr rd, [pc, #foo - . - 8] -> ldr rd, foo

Also, when saving the return address for a function pointer call, use
"mov lr, pc" just before the call unless the return address is somewhere
other than just after the call site.

Finally, a few obvious little micro-optimisations like using LDR directly
rather than ADR followed by LDR, and loading directly into PC rather than
bouncing via R0.

branches: 1.2.6;
Change local offset/label for irqhandlers to Lirqhandlers. Because in
ELF _C_LABEL(irqhandlers) == irqhandlers so we were getting self-referential
pointer which causes the IRQ to fall on itself. [With this change the
netwinder kernel can now be *ELF* and boots to multiuser]

branches: 1.1.2;
Move the footbridge dir out of arm32 into arm.

Trailing whitespace

malloc(9) -> kmem(9)

branches: 1.26.8;
in many device attach paths, allocate memory with M_WAITOK instead of M_NOWAIT
and remove code to handle failures that can no longer happen.

branches: 1.25.30;
Defer intr evcnt_attach to cpu_configure

kill sprintf

branches: 1.23.8; 1.23.18; 1.23.22;
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: 1.22.4;
Remove incorrect KASSERT.

footbridge_intr_calculate_masks is called multiple times and the KASSERT
isn't valid in (at least) the first call.

Merge kernel changes in matt-armv6 to HEAD.

branches: 1.20.6; 1.20.8; 1.20.10;
curcpu()->ci_depth is now updated in irq_dispatch.S, remove duplication
from footbridge.

Adjust ci_idepth for cpu_intr_p().

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.

branches: 1.17.6; 1.17.20; 1.17.22; 1.17.24; 1.17.26; 1.17.32;
Spell "separate" correctly. From Zafer Aydogan.

s/heirarchy/hierarchy/, from Zafer.

branches: 1.15.8; 1.15.10;
remove 'inline' from the xxx_do_pending() function that is called from
external sources, and conflicts with it's prototype.

branches: 1.14.4; 1.14.6; 1.14.8; 1.14.12;
Remove leading __ from __(const|inline|signed|volatile) -- it is obsolete.

merge ktrace-lwp.

branches: 1.12.2;
Adapt to shadowing and qualifier-cast warnings.

occured -> occurred. From Peter Postma.

Add SA_SIGINFO support for ARM (from Chris Gilbert).

branches: 1.9.2;
Rename IPL_IMP -> IPL_VM.

Add __KERNEL_RCSID tags to footbridge files.

Belatedly correct the copyright notice. I ported the new footbridge IRQ code
from the xscale interrupt code, it therefore should have Jason/Wasabi
copyright.

There is none of the original arm32 derived interrupt code here.

Checkin new interrupt handling code for the footbridge.
This is based upon Jason's work on xscale.

Most of the interrupt handling code is now written in C using an asm stub to
call into the C code.

spl* now only updates a software mask, and does not update the hardware,
this should be much faster.

The new code works well on cats, it's untested on netwinder, but should work.

The code implements generic soft interrupts.

More work is still required to bring the isa interrupt handling code upto
scratch currently all isa interrupts are handled at IPL_BIO on the footbridge.
This may cause isa interrupts to be handled later than they should be.
I plan to fix this in the near future.

branches: 1.5.2;
remove trailing \n in panic(). approved perry.

Finish up the changes to get LOOSE_PROTOTYPES working for cats.
Note that this leaves a few inconsistencies (no more than we already had though) eg initarm is now prototyped in arm32/machdep.h, however only cats currently makes use of that header.

Make some of the arm32 files build with LOOSE_PROTOTYPES not set in the makefile. Turned up a few mismatched functions. Note that this isn't all of the arm32 files. Aim will be to get arm32 kernels built with LOOSE_PROTOTYPES not set.

branches: 1.2.6;
Change <machine/irqhandler.h> to <machine/intr.h> since the latter always
includes the former and is a standard include file.

branches: 1.1.2;
Move the footbridge dir out of arm32 into arm.

Defer intr evcnt_attach to cpu_configure

branches: 1.5.50; 1.5.114; 1.5.124; 1.5.130;
merge ktrace-lwp.

Adapt to shadowing and qualifier-cast warnings.

branches: 1.3.2; 1.3.8;
Belatedly correct the copyright notice. I ported the new footbridge IRQ code
from the xscale interrupt code, it therefore should have Jason/Wasabi
copyright.

There is none of the original arm32 derived interrupt code here.

Checkin new interrupt handling code for the footbridge.
This is based upon Jason's work on xscale.

Most of the interrupt handling code is now written in C using an asm stub to
call into the C code.

spl* now only updates a software mask, and does not update the hardware,
this should be much faster.

The new code works well on cats, it's untested on netwinder, but should work.

The code implements generic soft interrupts.

More work is still required to bring the isa interrupt handling code upto
scratch currently all isa interrupts are handled at IPL_BIO on the footbridge.
This may cause isa interrupts to be handled later than they should be.
I plan to fix this in the near future.

branches: 1.1.2;
netwinder and cats can share irqhandler.h, so move (and rename) into the
footbridge dir, and share it.

fix multiplei repetitive typos in comments, messages and documentation. mainly because copy paste code big amount of files are affected.

Use PAGE_SIZE rather than NBPG.

Add __KERNEL_RCSID tags to footbridge files.

Use processor specific versions of ARM cache control functions for SA1100
and SA1110 instead of using SA110 ones.

Rename common StrongARM functions from sa110_* to sa1_*.

Reviewed by Jason Thorpe.

Use abstract names for the protection and PTE type bits in
L1 and L2 descriptors. This will allow us to support different
PTE layouts that enable the use of extensions on different
processor models.

Use vtopte() instead of pmap_pte().

Make some of the arm32 files build with LOOSE_PROTOTYPES not set in the makefile. Turned up a few mismatched functions. Note that this isn't all of the arm32 files. Aim will be to get arm32 kernels built with LOOSE_PROTOTYPES not set.

No need to pull in <machine/pte.h> directly.

branches: 1.3.6;
A couple of tidy ups to pmap:
pmap_t -> struct pmap * in pmap.c and pmap.h
kernel_pmap -> pmap_kernel() everywhere.

Compiled and booted on riscpc and cats.

branches: 1.2.2;
Typo police: 28285 -> 21285
Also garbage collect the old kernel VM map defines for footbridge.

Move the footbridge dir out of arm32 into arm.

Remove unnecessary sys/malloc.h include

Trailing whitespace

0x%p --> %p for non-external codes.

branches: 1.31.6;
Add xname to footbridge_pci_intr_establish().

Fix printf format strings - pci_intr_handle_t is uint64_t now on arm

branches: 1.29.10; 1.29.12;
Use designated initialisers and fix build in process.

branches: 1.28.2; 1.28.4;
PCI Extended Configuration stuff written by nonaka@:
- Add PCI Extended Configuration Space support into x86.
- Check register offset of pci_conf_read() in MD part. It returns (pcireg_t)-1
if it isn't accessible.
- Decode Extended Capability in PCI Extended Configuration Space.
Currently the following extended capabilities are decoded:
- Advanced Error Reporting
- Virtual Channel
- Device Serial Number
- Power Budgeting
- Root Complex Link Declaration
- Root Complex Event Collector Association
- Access Control Services
- Alternative Routing-ID Interpretation
- Address Translation Services
- Single Root IO Virtualization
- Page Request
- TPH Requester
- Latency Tolerance Reporting
- Secondary PCI Express
- Process Address Space ID
- LN Requester
- L1 PM Substates
The following extended capabilities are not decoded yet:
- Root Complex Internal Link Control
- Multi-Function Virtual Channel
- RCRB Header
- Vendor Unique
- Configuration Access Correction
- Multiple Root IO Virtualization
- Multicast
- Resizable BAR
- Dynamic Power Allocation
- Protocol Multiplexing
- Downstream Port Containment
- Precision Time Management
- M-PCIe
- Function Reading Status Queueing
- Readiness Time Reporting
- Designated Vendor-Specific

branches: 1.27.6;
wrap a few lines

make pci_intr_string and eisa_intr_string take a buffer and a length
instead of relying in local static storage.

kill sprintf

branches: 1.24.2;
split device_t/softc for all remaining drivers.
replace "struct device *" with "device_t".
use device_xname(), device_unit(), etc.

Add bounce buffer support for ARM bus_dma(9). Add macros to help initialize
bus_dma_tag structures.

branches: 1.22.6;
Change old-style function defintions to C89 prototypes.

Approved by releng.

branches: 1.21.2; 1.21.6;
#include <sys/bus.h> instead of <machine/bus.h>.

dependant -> dependent

Neither pci_dma64_available(), pci_probe_device(), pci_mapreg_map(9),
pci_find_rom(), pci_intr_map(9), pci_enumerate_bus(), nor the match
predicate passed to pciide_compat_intr_establish() should ever modify
their pci_attach_args argument, so make their pci_attach_args arguments
const and deal with the fallout throughout the kernel.

For the most part, these changes add a 'const' where there was no
'const' before, however, some drivers and MD code used to modify
pci_attach_args. Now those drivers either copy their pci_attach_args
and modify the copy, or refrain from modifying pci_attach_args:

Xen: according to Manuel Bouyer, writing to pci_attach_args in
pci_intr_map() was a leftover from Xen 2. Probably a bug. I
stopped writing it. I have not tested this change.

siside(4): sis_hostbr_match() needlessly wrote to pci_attach_args.
Probably a bug. I use a temporary variable. I have not tested this
change.

slide(4): sl82c105_chip_map() overwrote the caller's pci_attach_args.
Probably a bug. Use a local pci_attach_args. I have not tested
this change.

viaide(4): via_sata_chip_map() and via_sata_chip_map_new() overwrote the
caller's pci_attach_args. Probably a bug. Make a local copy of the
caller's pci_attach_args and modify the copy. I have not tested
this change.

While I'm here, make pci_mapreg_submap() static.

With these changes in place, I have tested the compilation of these
kernels:

alpha GENERIC
amd64 GENERIC XEN3_DOM0
arc GENERIC
atari HADES MILAN-PCIIDE
bebox GENERIC
cats GENERIC
cobalt GENERIC
evbarm-eb NSLU2
evbarm-el ADI_BRH ARMADILLO9 CP3100 GEMINI GEMINI_MASTER GEMINI_SLAVE GUMSTIX
HDL_G IMX31LITE INTEGRATOR IQ31244 IQ80310 IQ80321 IXDP425 IXM1200
KUROBOX_PRO LUBBOCK MARVELL_NAS NAPPI SHEEVAPLUG SMDK2800 TEAMASA_NPWR
TEAMASA_NPWR_FC TS7200 TWINTAIL ZAO425
evbmips-el AP30 DBAU1500 DBAU1550 MALTA MERAKI MTX-1 OMSAL400 RB153 WGT624V3
evbmips64-el XLSATX
evbppc EV64260 MPC8536DS MPC8548CDS OPENBLOCKS200 OPENBLOCKS266
OPENBLOCKS266_OPT P2020RDB PMPPC RB800 WALNUT
hp700 GENERIC
i386 ALL XEN3_DOM0 XEN3_DOMU
ibmnws GENERIC
macppc GENERIC
mvmeppc GENERIC
netwinder GENERIC
ofppc GENERIC
prep GENERIC
sandpoint GENERIC
sgimips GENERIC32_IP2x
sparc GENERIC_SUN4U KRUPS
sparc64 GENERIC

As of Sun Apr 3 15:26:26 CDT 2011, I could not compile these kernels
with or without my patches in place:

### evbmips-el GDIUM

nbmake: nbmake: don't know how to make /home/dyoung/pristine-nbsd/src/sys/arch/mips/mips/softintr.c. Stop

### evbarm-el MPCSA_GENERIC
src/sys/arch/evbarm/conf/MPCSA_GENERIC:318: ds1672rtc*: unknown device `ds1672rtc'

### ia64 GENERIC

/tmp/genassym.28085/assym.c: In function 'f111':
/tmp/genassym.28085/assym.c:67: error: invalid application of 'sizeof' to incomplete type 'struct pcb'
/tmp/genassym.28085/assym.c:76: error: dereferencing pointer to incomplete type

### sgimips GENERIC32_IP3x

crmfb.o: In function `crmfb_attach':
crmfb.c:(.text+0x2304): undefined reference to `ddc_read_edid'
crmfb.c:(.text+0x2304): relocation truncated to fit: R_MIPS_26 against `ddc_read_edid'
crmfb.c:(.text+0x234c): undefined reference to `edid_parse'
crmfb.c:(.text+0x234c): relocation truncated to fit: R_MIPS_26 against `edid_parse'
crmfb.c:(.text+0x2354): undefined reference to `edid_print'
crmfb.c:(.text+0x2354): relocation truncated to fit: R_MIPS_26 against `edid_print'

branches: 1.18.4; 1.18.6;
ANSIfy another 1261 function definitions.
The only ones left in sys are beyond by sed script!
(or in sys/dist or sys/external)
Mostly they have function pointer parameters.

Change about 4500 of the K&R function definitions to ANSI ones.
There are still about 1600 left, but they have ',' or /* ... */
in the actual variable definitions - which my awk script doesn't handle.
There are also many that need () -> (void).
(The script does handle misordered arguments.)

Remove all the __P() from sys (excluding sys/dist)
Diff checked with grep and MK1 eyeball.
i386 and amd64 GENERIC and sys still build.

branches: 1.15.6; 1.15.12;
Fix 9.5 year old buffer overflow.

It wasn't noticed till now as it wasn't overflowing onto anything
important (or was overwritten by the correct data). Recent changes
meant irqstr was placed just before footbridge_intrq and so it trashed
the interrupt linked list, and so caused an alignment fault.

Note that cats still doesn't boot even with the change, as it hangs when
starting userland, I suspect an interrupt issue.

branches: 1.14.6; 1.14.8; 1.14.10; 1.14.12;
Fix for PR cats/18026.

cats was never able to dump a kernel core dump because reading from
VGA addresses (0xb8000) was causing the system to hang.

To workaround this reprogram the footbridge to map the memory to appear on
the PCI bus at 0x20000000, rather than at 0x0. Also configure the pci bus
to have a DMA range so that data is mapped correctly.

Note that -current kernels seem to hang when unmounting the fs. This
is a seperate issue, and appears to be because interrupts need to be
enabled to unmount filesystems.

So using reboot 0x104 does work, as it does a sync without unmounting the
filesystems.

Also arm savecore doesn't do anything with the memroy dump, as on arm we
currently just dump the raw memory, there's no header block to indicate
memory sizes or other useful information.

branches: 1.13.18; 1.13.22; 1.13.24; 1.13.32; 1.13.36;
Make this file compile with PCI_DEBUG defined. Needed to figure out why
the latest ABLE firmware was causing an interrupt mapping issue on cats.
It seems that the latest ABLE firmware is using native-PCI mode, rather
than compatibility mode, but doesn't setup an irq for us to use, so we fail
to map the interrupt handler.

branches: 1.12.26;
merge ktrace-lwp.

branches: 1.11.2;
No 0x in front of %p...

Initialize the new _cookie member of arm32_bus_dma_tag to NULL.

branches: 1.9.2;
Add __KERNEL_RCSID tags to footbridge files.

Checkin new interrupt handling code for the footbridge.
This is based upon Jason's work on xscale.

Most of the interrupt handling code is now written in C using an asm stub to
call into the C code.

spl* now only updates a software mask, and does not update the hardware,
this should be much faster.

The new code works well on cats, it's untested on netwinder, but should work.

The code implements generic soft interrupts.

More work is still required to bring the isa interrupt handling code upto
scratch currently all isa interrupts are handled at IPL_BIO on the footbridge.
This may cause isa interrupts to be handled later than they should be.
I plan to fix this in the near future.

branches: 1.7.2;
Properly prototype the netwinder isa/pci init funcs.

remove trailing \n in panic(). approved perry.

Use separate function pointers for dmamap_sync pre- vs post- operations.
Change the bus_dmamap_sync() macro to test the ops argument against pre-
and post- constants. The compiler will optimize out dead code because
of the constants. Since post- operations are not needed on ARM (except
for ISA bounce buffers), this eliminate a large number of function calls
which are noops, each of which cost at least 6 cycles just in the call
and return overhead (not to mention whatever other useless work the
compiler decides to do in the callee).

branches: 1.4.6; 1.4.14;
Change <machine/irqhandler.h> to <machine/intr.h> since the latter always
includes the former and is a standard include file.

branches: 1.3.2;
Remove defopt EBSA285.
Move the files from footbridge that are cats specific.
Remove EBSA285 kernel as people should be able to use the generic cats kernel for EBSA285 systems.

Move netwinder_machdep.c to files.netwinder. Eliminate opt_netwinder.h and
use #ifdef netwinder insead. XXX ebsa285_machdep.c should move to the cats
directory and files.cats

Move the footbridge dir out of arm32 into arm.

#include <sys/bus.h> instead of <machine/bus.h>.

device_t/softc split
CFATTACH_DECL -> CFATTACH_DECL_NEW
struct device * -> device_t
struct cfdata * -> cfdata_t
Use aprint*

branches: 1.5.50;
Add generic TOD support. From Bucky Katz.

branches: 1.4.20; 1.4.24;
merge ktrace-lwp.

branches: 1.3.2;
Adapt to shadowing and qualifier-cast warnings.

branches: 1.2.18;
Following the demise of arch/arm32 update cats, and restore the isa files to a more sane location.
Also fix build break on GENERIC cats kernel, seems that conf.h should have been including arm/conf.h.

This completes the removal of arch/arm32.

branches: 1.1.2; 1.1.8;
Move the footbridge dir out of arm32 into arm.

Checkin new interrupt handling code for the footbridge.
This is based upon Jason's work on xscale.

Most of the interrupt handling code is now written in C using an asm stub to
call into the C code.

spl* now only updates a software mask, and does not update the hardware,
this should be much faster.

The new code works well on cats, it's untested on netwinder, but should work.

The code implements generic soft interrupts.

More work is still required to bring the isa interrupt handling code upto
scratch currently all isa interrupts are handled at IPL_BIO on the footbridge.
This may cause isa interrupts to be handled later than they should be.
I plan to fix this in the near future.

branches: 1.2.2; 1.2.4; 1.2.16;
* Share a common vector page between arm26 and arm32.
* Use a common set of exception handlers for all arm32 platforms.
* New FIQ framework based on discussions with Ben Harris, shared
between arm26 and arm32.

Move interrupt-related stuff out of the generic 32-bit ARM genassym.cf
and into platform-specific genassym.cf files.

Remove files not used since Sep 2006

branches: 1.14.12; 1.14.22;
device_t/softc split
CFATTACH_DECL -> CFATTACH_DECL_NEW
struct device * -> device_t
struct cfdata * -> cfdata_t
Use aprint*

Change about 4500 of the K&R function definitions to ANSI ones.
There are still about 1600 left, but they have ',' or /* ... */
in the actual variable definitions - which my awk script doesn't handle.
There are also many that need () -> (void).
(The script does handle misordered arguments.)

Remove all the __P() from sys (excluding sys/dist)
Diff checked with grep and MK1 eyeball.
i386 and amd64 GENERIC and sys still build.

branches: 1.11.10; 1.11.18; 1.11.24;
Convert to generic TODR.

XXX Is this file used at all?

branches: 1.10.26; 1.10.30; 1.10.32; 1.10.38; 1.10.46;
Convert netwinder and cats (and any other footbridge based system in the
future) to timecounters, using the dc21285_fclk. ok nick@, chris@.

branches: 1.9.8; 1.9.20;
Remove leading __ from __(const|inline|signed|volatile) -- it is obsolete.

merge ktrace-lwp.

branches: 1.7.2;
Adapt to shadowing and qualifier-cast warnings.

Call inittodr() from main(). Let file system code set the recorded `last
update' time (if any) through the new function setrootfstime().

branches: 1.5.2;
Add __KERNEL_RCSID tags to footbridge files.

Use CFATTACH_DECL().

Declare all cfattach structures const.

Remove #ifdef NC stuff, syncing with iomd/todclock.c.

branches: 1.1.2; 1.1.8; 1.1.12;
Following the demise of arch/arm32 update cats, and restore the isa files to a more sane location.
Also fix build break on GENERIC cats kernel, seems that conf.h should have been including arm/conf.h.

This completes the removal of arch/arm32.

Remove files not used since Sep 2006

branches: 1.2.12; 1.2.22;
Remove all the __P() from sys (excluding sys/dist)
Diff checked with grep and MK1 eyeball.
i386 and amd64 GENERIC and sys still build.

branches: 1.1.2; 1.1.8; 1.1.130; 1.1.138; 1.1.144;
Following the demise of arch/arm32 update cats, and restore the isa files to a more sane location.
Also fix build break on GENERIC cats kernel, seems that conf.h should have been including arm/conf.h.

This completes the removal of arch/arm32.

branches: 1.1.2; 1.1.14;
Following the demise of arch/arm32 update cats, and restore the isa files to a more sane location.
Also fix build break on GENERIC cats kernel, seems that conf.h should have been including arm/conf.h.

This completes the removal of arch/arm32.

Change todr_chip_handle::cookie -> todr_chip_handle::todr_dev, and
make it a device_t. Upcoming functional changes will require the
device_t associated with a TODR device.

Change todr_chip_handle::bus_cookie -> todr_chip_handle::todr_devaux.
Nothing was using the old field, but I decided to keep it around just
in cause something needs it in the future.

And with these largely mechanical yet semantically meaningful changes,
thus spake the Oracle: "Welcome to NetBSD 11.99.2."

Trailing whitespace

Complete the device_t/softc split I attempted previously.

From chuq.

branches: 1.11.12; 1.11.22;
device_t/softc split
CFATTACH_DECL -> CFATTACH_DECL_NEW
struct device * -> device_t
struct cfdata * -> cfdata_t
Use aprint*

branches: 1.10.50;
Add generic TOD support. From Bucky Katz.

branches: 1.9.4;
ANSIfy and KNF.

branches: 1.8.8; 1.8.20;
merge ktrace-lwp.

branches: 1.7.12;
forgot one ISACF_*_DEFAULT conversion, noticed by Nick Hudson

Rename dsrtc to ds1687rtc to avoid conflicting with the MI i2c
ds1307 driver.

Hi Jason.

branches: 1.5.2;
Add __KERNEL_RCSID tags to footbridge files.

Add trailing ; to CFATTACH_DECL

Use CFATTACH_DECL().

Declare all cfattach structures const.

branches: 1.1.2; 1.1.14;
Following the demise of arch/arm32 update cats, and restore the isa files to a more sane location.
Also fix build break on GENERIC cats kernel, seems that conf.h should have been including arm/conf.h.

This completes the removal of arch/arm32.

branches: 1.3.50;
merge ktrace-lwp.

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

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

branches: 1.1.2; 1.1.14; 1.1.22;
Following the demise of arch/arm32 update cats, and restore the isa files to a more sane location.
Also fix build break on GENERIC cats kernel, seems that conf.h should have been including arm/conf.h.

This completes the removal of arch/arm32.

Trailing whitespace

use designated initializer to make adaptability and flexibility for changing struct bus_space.
no functional change.

branches: 1.8.18;
Replace more vm_offset_t, vm_size_t with vaddr_t, vsize_t
Use paddr_t for msgbufphys

branches: 1.7.6;
Change old-style function defintions to C89 prototypes.

Approved by releng.

branches: 1.6.2; 1.6.6;
#include <sys/bus.h> instead of <machine/bus.h>.

ANSIfy another 1261 function definitions.
The only ones left in sys are beyond by sed script!
(or in sys/dist or sys/external)
Mostly they have function pointer parameters.

Change about 4500 of the K&R function definitions to ANSI ones.
There are still about 1600 left, but they have ',' or /* ... */
in the actual variable definitions - which my awk script doesn't handle.
There are also many that need () -> (void).
(The script does handle misordered arguments.)

branches: 1.3.110; 1.3.118; 1.3.124;
Add __KERNEL_RCSID tags to footbridge files.

remove trailing \n in panic(). approved perry.

branches: 1.1.2; 1.1.14;
Following the demise of arch/arm32 update cats, and restore the isa files to a more sane location.
Also fix build break on GENERIC cats kernel, seems that conf.h should have been including arm/conf.h.

This completes the removal of arch/arm32.

Trailing whitespace

Remove clause 3 and 4 from TNF licenses

branches: 1.1.2; 1.1.14; 1.1.126; 1.1.128; 1.1.130;
Following the demise of arch/arm32 update cats, and restore the isa files to a more sane location.
Also fix build break on GENERIC cats kernel, seems that conf.h should have been including arm/conf.h.

This completes the removal of arch/arm32.

Trailing whitespace

malloc(9) -> kmem(9)

branches: 1.22.8;
in many device attach paths, allocate memory with M_WAITOK instead of M_NOWAIT
and remove code to handle failures that can no longer happen.

branches: 1.21.30;
kill sprintf

Remove unused variables.

branches: 1.19.2;
split device_t/softc for all remaining drivers.
replace "struct device *" with "device_t".
use device_xname(), device_unit(), etc.

branches: 1.18.2; 1.18.12;
#include <sys/bus.h> instead of <machine/bus.h>.

Apply fixes for PR port-arm/43339:
Set proper IPL_SOFTfoo values even in !FAST_SOFTINTS case.
Some assertions in MI code expect they have unique values,
per comments from rmind@.

Also cleanup various "interrupt hierarchy" code since IPL_NONE and
IPL_SOFTfoo should not be set by any hardware interrupt establish functions.

Ok'ed by mrg@, tested on shark and hpcarm.

branches: 1.16.2; 1.16.4;
Typo correction: it's isa_dmadestroy(), not isa_dma_destroy(), apparently.

isa_detach_hook() needs two arguments, the first an isa_chipset_tag_t.

These are stragglers from my last commit ("Let us safely detach
the ISA bus and devices attaching to the ISA bus"). Define
isa_detach_hook() in MD ISA implementations. Define isa_dmadestroy().

Ansify function definitions w/o arguments. Generated with sed.

ANSIfy functions with function-pointer arguments

ANSIfy another 1261 function definitions.
The only ones left in sys are beyond by sed script!
(or in sys/dist or sys/external)
Mostly they have function pointer parameters.

Change about 4500 of the K&R function definitions to ANSI ones.
There are still about 1600 left, but they have ',' or /* ... */
in the actual variable definitions - which my awk script doesn't handle.
There are also many that need () -> (void).
(The script does handle misordered arguments.)

Remove all the __P() from sys (excluding sys/dist)
Diff checked with grep and MK1 eyeball.
i386 and amd64 GENERIC and sys still build.

branches: 1.8.8; 1.8.14;
Remove clause 3 and 4 from TNF licenses

branches: 1.7.14; 1.7.16; 1.7.18;
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.

branches: 1.6.30; 1.6.46; 1.6.48; 1.6.50; 1.6.52; 1.6.58;
merge ktrace-lwp.

branches: 1.5.16;
Move UCB-licensed code from 4-clause to 3-clause licence.

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

branches: 1.4.2;
Rename IPL_IMP -> IPL_VM.

Add __KERNEL_RCSID tags to footbridge files.

Checkin new interrupt handling code for the footbridge.
This is based upon Jason's work on xscale.

Most of the interrupt handling code is now written in C using an asm stub to
call into the C code.

spl* now only updates a software mask, and does not update the hardware,
this should be much faster.

The new code works well on cats, it's untested on netwinder, but should work.

The code implements generic soft interrupts.

More work is still required to bring the isa interrupt handling code upto
scratch currently all isa interrupts are handled at IPL_BIO on the footbridge.
This may cause isa interrupts to be handled later than they should be.
I plan to fix this in the near future.

branches: 1.1.2; 1.1.4; 1.1.6;
Merge isa_machdep.c from netwinder and cats into footbridge/isa (where it
joins other machdep files)
Saves maintaining multiple copies of the same thing, the only differences
were:
IRQ line used on the footbridge (made that a define in include/isa_machdep.h)
name of a dma_ranges variable contained arch name, so just made it generic.

Remove unnecessary sys/malloc.h include

Switch to the generic bounce buffer support.

branches: 1.15.6;
Change old-style function defintions to C89 prototypes.

Approved by releng.

branches: 1.14.2; 1.14.6;
#include <sys/bus.h> instead of <machine/bus.h>.

Ansify function definitions w/o arguments. Generated with sed.

ANSIfy another 1261 function definitions.
The only ones left in sys are beyond by sed script!
(or in sys/dist or sys/external)
Mostly they have function pointer parameters.

Remove all the __P() from sys (excluding sys/dist)
Diff checked with grep and MK1 eyeball.
i386 and amd64 GENERIC and sys still build.

branches: 1.10.8; 1.10.14;
Remove clause 3 and 4 from TNF licenses

branches: 1.9.42; 1.9.44; 1.9.46;
Fix caddr_t fallout for cats kernel builds.

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

branches: 1.7.26;
merge ktrace-lwp.

branches: 1.6.16;
Initialize the new _cookie member of arm32_bus_dma_tag to NULL.

branches: 1.5.2;
Use PAGE_SIZE rather than NBPG.

Add __KERNEL_RCSID tags to footbridge files.

Use separate function pointers for dmamap_sync pre- vs post- operations.
Change the bus_dmamap_sync() macro to test the ops argument against pre-
and post- constants. The compiler will optimize out dead code because
of the constants. Since post- operations are not needed on ARM (except
for ISA bounce buffers), this eliminate a large number of function calls
which are noops, each of which cost at least 6 cycles just in the call
and return overhead (not to mention whatever other useless work the
compiler decides to do in the callee).

Overhaul how DMA ranges work in the ARM bus_dma implementation.

A new "arm32_dma_range" structure now describes a DMA window, with
a system address base, bus address base, and length. In addition to
providing info about which memory regions are legal for DMA, the new
structure provides address translation support, as well.

As before, if a tag does not list any ranges, then all addresses are
considered valid, and no DMA address translation is performed.

This allows us to remove a large chunk of code which was duplicated and
tweaked slightly (to do the address translation) from the stock ARM
bus_dma in the XScale IOP and ARM Integrator ports.

Test compiled on all ARM platforms, test booted on Intel IQ80321 and Shark.

branches: 1.1.2; 1.1.10; 1.1.14;
Following the demise of arch/arm32 update cats, and restore the isa files to a more sane location.
Also fix build break on GENERIC cats kernel, seems that conf.h should have been including arm/conf.h.

This completes the removal of arch/arm32.

Remove unnecessary sys/malloc.h include

#include <sys/bus.h> instead of <machine/bus.h>.

Drop 3rd and 4th clauses. Approved by thomas@ (copyright holder).

Change about 4500 of the K&R function definitions to ANSI ones.
There are still about 1600 left, but they have ',' or /* ... */
in the actual variable definitions - which my awk script doesn't handle.
There are also many that need () -> (void).
(The script does handle misordered arguments.)

branches: 1.3.8; 1.3.14;
Remove clause 3 and 4 from TNF licenses

branches: 1.2.106; 1.2.108; 1.2.110;
Add __KERNEL_RCSID tags to footbridge files.

branches: 1.1.2; 1.1.14;
Following the demise of arch/arm32 update cats, and restore the isa files to a more sane location.
Also fix build break on GENERIC cats kernel, seems that conf.h should have been including arm/conf.h.

This completes the removal of arch/arm32.

The joystick driver is using mi timing code for many months.
Noone complained, so we can remove the unused md versions.

branches: 1.3.2; 1.3.10; 1.3.12;
Add __KERNEL_RCSID tags to footbridge files.

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.

branches: 1.1.2; 1.1.10; 1.1.14;
Following the demise of arch/arm32 update cats, and restore the isa files to a more sane location.
Also fix build break on GENERIC cats kernel, seems that conf.h should have been including arm/conf.h.

This completes the removal of arch/arm32.

split device_t/softc for all remaining drivers.
replace "struct device *" with "device_t".
use device_xname(), device_unit(), etc.

branches: 1.10.12; 1.10.22;
device_t/softc split
CFATTACH_DECL -> CFATTACH_DECL_NEW
struct device * -> device_t
struct cfdata * -> cfdata_t
Use aprint*

ANSIfy another 1261 function definitions.
The only ones left in sys are beyond by sed script!
(or in sys/dist or sys/external)
Mostly they have function pointer parameters.

Change about 4500 of the K&R function definitions to ANSI ones.
There are still about 1600 left, but they have ',' or /* ... */
in the actual variable definitions - which my awk script doesn't handle.
There are also many that need () -> (void).
(The script does handle misordered arguments.)

Remove all the __P() from sys (excluding sys/dist)
Diff checked with grep and MK1 eyeball.
i386 and amd64 GENERIC and sys still build.

branches: 1.6.8; 1.6.14;
Remove clause 3 and 4 from TNF licenses

branches: 1.5.106; 1.5.108; 1.5.110;
Add __KERNEL_RCSID tags to footbridge files.

Add trailing ; to CFATTACH_DECL

Use CFATTACH_DECL().

Declare all cfattach structures const.

branches: 1.1.2; 1.1.14;
Following the demise of arch/arm32 update cats, and restore the isa files to a more sane location.
Also fix build break on GENERIC cats kernel, seems that conf.h should have been including arm/conf.h.

This completes the removal of arch/arm32.