Remove unused files.

branches: 1.1.1;
Initial revision

Remove unused files.

branches: 1.1.1;
Initial revision

Remove unnecessary <sys/malloc.h>.

the mutex is also used for fdc attachment, so initialize it also
for a kernel without BLINK option.

branches: 1.25.2;
Split auxio at ebus and auxio at sbus properly, so we can build kernels
without sbus support.

convert auxio(4) to use a mutex for exclusion (this existing code didn't
really work for MP systems, anyway -- it only went to splhigh.)

various cleanups:
- remove unused AUXIO_SBUS
- make most functions static
- introduce auxio_{read,write}_led() frontends
- avoid a potential NULL deref in auxio_fd_control()

the text is 32 bytes smaller.

Improve spelling: regsiter -> register

This change is non-functional.

Approved by <riastradh>, <pgoyette>

branches: 1.22.12; 1.22.30;
split auxio, ebus, psycho, sab.

branches: 1.21.2;
Remove implicit include <dev/sbus/sbusvar.h> from autoconf.h, and
add it explicitly in files depending on it.

branches: 1.20.18; 1.20.24;
use device_lookup_private to get softc

branches: 1.19.2;
remove clause #3 from my license where there are no other
copyright holders involved.

branches: 1.18.16; 1.18.18; 1.18.20; 1.18.22;
Merge the ppcoea-renovation branch to HEAD.

This branch was a major cleanup and rototill of many of the various OEA
cpu based PPC ports that focused on sharing as much code as possible
between the various ports to eliminate near-identical copies of files in
every tree. Additionally there is a new PIC system that unifies the
interface to interrupt code for all different OEA ppc arches. The work
for this branch was done by a variety of people, too long to list here.

TODO:
bebox still needs work to complete the transition to -renovation.
ofppc still needs a bunch of work, which I will be looking at.
ev64260 still needs to be renovated
amigappc was not attempted.

NOTES:
pmppc was removed as an arch, and moved to a evbppc target.

branches: 1.17.10;
Merge some of the less invasive changes from the vmlocking branch:

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

branches: 1.16.8; 1.16.10; 1.16.16;
Initial support for floppy drives on sparc64. This has been tested
on an Ultra 2 and works fine, apart from formatting which is known
to be broken. It failed to work on an ebus machine. The ebus
support compiles fine, but I don't have hardware for testing. This
code is based on the sparc driver with hints from OpenBSD on how
to do the sbus and ebus attachments, along with help from martin@
and mrg@.

Initial commit approved by martin@

TODO:
- fix ebus support
- fix XXX issues
- check resource deallocation
- fix formatting
- merge remaining differences from sparc driver
- split out back end chip support
- have sparc driver use new common back end chip support
- adapt to newlock when branch is ready
- adapt to "disk-info" property dictionary

branches: 1.15.14; 1.15.16;
ANSIfy: u_intN_t -> uintN_t, remove __P(), fix function definitions.

branches: 1.14.2; 1.14.4; 1.14.6;
merge ktrace-lwp.

branches: 1.13.12;
In auxio_blink(), only toggle the AUXIO_LED_LED bit, don't clear the others.
It looks like bit 3 control the on-board le's link test, clearing it breaks
the interface (no link detected on the remote end). bit 3 is defined as
AUXIO4M_LTE (link-test enable) for sun4m systems (maybe all the AUXIO4M_*
bits are valid on the Ultra/1 too ?).
Tested on Ultra/1 and Ultra/5, approved by Martin Husemann and Matthew Green.
Should fix port-sparc64/25039 by Lubomir Sedlacik.

allow the LED blinker to be disabled via do_blink.

branches: 1.11.4;
__KERNEL_RCSID()

branches: 1.10.2;
Define option BLINK in option file opt_auxio.h and include it in auxio.c.
approved by martin@

Add trailing ; to CFATTACH_DECL.

Use CFATTACH_DECL().

Declare all cfattach structures const.

Add missing brace.

Overhaul bus space.

bus_space_handle_t now holds an address and two ASIs, one for normal accesses
and one for streaming accesses. This allows to map individual handles
different ways, so some can use MMU bypass accesses and others use virtual
addresses. bus_space_map() will now create handles that use bypass accesses
unles BUS_SPACE_MAP_LINEAR is passed in. So only pass in BUS_SPACE_MAP_LINEAR
if you absolutely *need* to use bus_space_vaddr(). This removes at least one
extra level of indirection and should reduce TLB misses.

32-bit kernels have problems accessing 64-bit addresses, so they always use
virtual addresses.

convert to using <dev/ebus/ebusvar.h> and it's struct member names.

branches: 1.3.4;
declare variable used only with BLINK inside #ifdef BLINK to avoid
unused variable warning

implement `options BLINK' for sparc64 for ebus & sbus. tested on a U2
(sbus) and a U5 (ebus).

branches: 1.1.6; 1.1.10;
- auxio cleanup and sbus support.
- make GENERIC64 include GENERIC and set the 3 optoins it needs. suggested
by hubert feyrer.
- add a comment that we maybe should use the `bpp' driver, not the lpt, on
the ebus because the `bpp' driver does DMA already.
- ebus_attach_args got a member renamed

Remove unnecessary <sys/malloc.h>.

branches: 1.6.2; 1.6.18;
Split auxio at ebus and auxio at sbus properly, so we can build kernels
without sbus support.

- auxio cleanup and sbus support.
- make GENERIC64 include GENERIC and set the 3 optoins it needs. suggested
by hubert feyrer.
- add a comment that we maybe should use the `bpp' driver, not the lpt, on
the ebus because the `bpp' driver does DMA already.
- ebus_attach_args got a member renamed

store all the physical address bits.

actually, i wrote these in 2000

correct a message

driver for the PCI/ebus AUXIO registers.

Remove unnecessary <sys/malloc.h>.

branches: 1.1.2; 1.1.18;
Split auxio at ebus and auxio at sbus properly, so we can build kernels
without sbus support.

Improve spelling: regsiter -> register

This change is non-functional.

Approved by <riastradh>, <pgoyette>

branches: 1.7.42; 1.7.62;
remove clause #3 from my license where there are no other
copyright holders involved.

branches: 1.6.34; 1.6.36; 1.6.38; 1.6.40;
move definition of FTC_FLIP to auxioreg.h to mirror sparc

branches: 1.5.4; 1.5.8; 1.5.10; 1.5.12;
Initial support for floppy drives on sparc64. This has been tested
on an Ultra 2 and works fine, apart from formatting which is known
to be broken. It failed to work on an ebus machine. The ebus
support compiles fine, but I don't have hardware for testing. This
code is based on the sparc driver with hints from OpenBSD on how
to do the sbus and ebus attachments, along with help from martin@
and mrg@.

Initial commit approved by martin@

TODO:
- fix ebus support
- fix XXX issues
- check resource deallocation
- fix formatting
- merge remaining differences from sparc driver
- split out back end chip support
- have sparc driver use new common back end chip support
- adapt to newlock when branch is ready
- adapt to "disk-info" property dictionary

branches: 1.4.4; 1.4.36; 1.4.66; 1.4.68;
implement `options BLINK' for sparc64 for ebus & sbus. tested on a U2
(sbus) and a U5 (ebus).

branches: 1.3.6; 1.3.10;
- auxio cleanup and sbus support.
- make GENERIC64 include GENERIC and set the 3 optoins it needs. suggested
by hubert feyrer.
- add a comment that we maybe should use the `bpp' driver, not the lpt, on
the ebus because the `bpp' driver does DMA already.
- ebus_attach_args got a member renamed

actually, i wrote these in 2000

driver for the PCI/ebus AUXIO registers.

Split auxio at ebus and auxio at sbus properly, so we can build kernels
without sbus support.

branches: 1.7.42; 1.7.62;
remove clause #3 from my license where there are no other
copyright holders involved.

branches: 1.6.52; 1.6.54; 1.6.56; 1.6.58;
Initial support for floppy drives on sparc64. This has been tested
on an Ultra 2 and works fine, apart from formatting which is known
to be broken. It failed to work on an ebus machine. The ebus
support compiles fine, but I don't have hardware for testing. This
code is based on the sparc driver with hints from OpenBSD on how
to do the sbus and ebus attachments, along with help from martin@
and mrg@.

Initial commit approved by martin@

TODO:
- fix ebus support
- fix XXX issues
- check resource deallocation
- fix formatting
- merge remaining differences from sparc driver
- split out back end chip support
- have sparc driver use new common back end chip support
- adapt to newlock when branch is ready
- adapt to "disk-info" property dictionary

branches: 1.5.22; 1.5.40; 1.5.42;
implement `options BLINK' for sparc64 for ebus & sbus. tested on a U2
(sbus) and a U5 (ebus).

branches: 1.4.6; 1.4.10;
- auxio cleanup and sbus support.
- make GENERIC64 include GENERIC and set the 3 optoins it needs. suggested
by hubert feyrer.
- add a comment that we maybe should use the `bpp' driver, not the lpt, on
the ebus because the `bpp' driver does DMA already.
- ebus_attach_args got a member renamed

store all the physical address bits.

actually, i wrote these in 2000

driver for the PCI/ebus AUXIO registers.

Brooktree DAC support now lives in sys/dev/sun.

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

branches: 1.4.8; 1.4.18;
completely remove Mach VM support. all that is left is the all the
header files as UVM still uses (most of) these.

Don't use fuword()/suword() -- can't count on their size.

Merge paddr_t changes into the main branch.

branches: 1.1.1;
Initial revision

Brooktree DAC support now lives in sys/dev/sun.

branches: 1.1.1;
Initial revision

Brooktree DAC support now lives in sys/dev/sun.

branches: 1.1.1;
Initial revision

These drivers are now in sys/dev/sun

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

Change the kernel mmap interface so that the offset to map is an
"off_t" and the return value is a "paddr_t" to allow mappings
at offsets past 2^31 bytes. Somewhat inspired by FreeBSD, which
only changed the offset to a "vm_offset_t".

Includes updates for the i386, pc532 and sh3 mmmmap from Jason Thorpe.

branches: 1.8.2; 1.8.12;
Another general cleanup:

Remove the entire idea of fasttrap interrupts since V9 traps are really cheap,
the CPUs are really fast, and the completely different trap frames would make
these handlers really difficult to implement.

pmap_changeprot() was only used by the clock and one other place; deprecate it.

probeget() and probeset() now take 64-bit addresses even in 32-bit mode so we
can probe IO locations by physical addresses.

Some pmap cleanup.

Some more copyright cleanup.

catch up with probe[gs]et() changes.

Start putting in hooks for non-zs console devices.

branches: 1.5.8;
It slices. It dices. It does everything except exec a sparc32_compat init.

#include <dev/sbus/sbusvar.h>

fix missed sparc -> sparc64

Merge paddr_t changes into the main branch.

branches: 1.1.1;
Initial revision

These drivers are now in sys/dev/sun

branches: 1.1.1;
Initial revision

Change the devhandle_from_*() functions to also take a "super handle",
from which the newly created handle will inherit it's implementation.
The root implementation for a new handle type is used if an invalid
"super handle" is passed.

Merge thorpej-cfargs2.

branches: 1.6.4;
Associate the OpenBoot / OpenFirmware node with attached devices
at config_found() time.

branches: 1.5.2; 1.5.4;
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: 1.4.2;
malloc(9) -> kmem(9) -- just the simple, straightforward conversions for now.

branches: 1.3.8;
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: 1.2.14; 1.2.18;
sun4v: reset cbus debug back to zero

branches: 1.1.2; 1.1.4;
sun4v: add cbus driver - from OpenBSD

branches: 1.1.2; 1.1.18;
sun4v: add cbus driver - from OpenBSD

Change the devhandle_from_*() functions to also take a "super handle",
from which the newly created handle will inherit it's implementation.
The root implementation for a new handle type is used if an invalid
"super handle" is passed.

Merge thorpej-cfargs2.

branches: 1.7.4;
Associate the OpenBoot / OpenFirmware node with attached devices
at config_found() time.

branches: 1.6.2; 1.6.4;
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: 1.5.2;
malloc(9) -> kmem(9) -- just the simple, straightforward conversions for now.

branches: 1.4.8;
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: 1.3.40;
add missing __KERNEL_RCSID().

branches: 1.2.2; 1.2.6;
use device_private(). thanks to jmcneill for pointing this out.

port the openbsd central and fhc drivers, and the clock/zs attachments.
doesn't quite work yet, crashes when central_attach() calls
config_attach() (faulting address is 0xf8000000.)

port the openbsd central and fhc drivers, and the clock/zs attachments.
doesn't quite work yet, crashes when central_attach() calls
config_attach() (faulting address is 0xf8000000.)

These devices will never be found on sun4u machines.

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

Change the kernel mmap interface so that the offset to map is an
"off_t" and the return value is a "paddr_t" to allow mappings
at offsets past 2^31 bytes. Somewhat inspired by FreeBSD, which
only changed the offset to a "vm_offset_t".

Includes updates for the i386, pc532 and sh3 mmmmap from Jason Thorpe.

branches: 1.4.2; 1.4.12;
Make pbrobeget() and probeset() work for 64-bit values as well. To do this
the arguments are changed so the address is first and the ASI second so we
can have the address in %o0:%o1 and not worry about unused registers.

Also a bit of copyright cleanup.

branches: 1.3.6;
fix problems in many d_mmap routines:
- returned EOPNOTSUPP rather than -1.
- no check for negative offset.
many of these fix potential security problems in these drivers.


XXX XXX XXX
the d_mmap cdev routine should be changed to have a prototype like:
paddr_t (*d_mmap) __P((dev_t, off_t, int));

by someone!

Merge paddr_t changes into the main branch.

branches: 1.1.1;
Initial revision

These devices will never be found on sun4u machines.

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

Change the kernel mmap interface so that the offset to map is an
"off_t" and the return value is a "paddr_t" to allow mappings
at offsets past 2^31 bytes. Somewhat inspired by FreeBSD, which
only changed the offset to a "vm_offset_t".

Includes updates for the i386, pc532 and sh3 mmmmap from Jason Thorpe.

branches: 1.5.2; 1.5.12;
Make pbrobeget() and probeset() work for 64-bit values as well. To do this
the arguments are changed so the address is first and the ASI second so we
can have the address in %o0:%o1 and not worry about unused registers.

Also a bit of copyright cleanup.

catch up with probe[gs]et() changes.

branches: 1.3.6;
fix problems in many d_mmap routines:
- returned EOPNOTSUPP rather than -1.
- no check for negative offset.
many of these fix potential security problems in these drivers.


XXX XXX XXX
the d_mmap cdev routine should be changed to have a prototype like:
paddr_t (*d_mmap) __P((dev_t, off_t, int));

by someone!

Merge paddr_t changes into the main branch.

branches: 1.1.1;
Initial revision

These devices will never be found on sun4u machines.

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

Change the kernel mmap interface so that the offset to map is an
"off_t" and the return value is a "paddr_t" to allow mappings
at offsets past 2^31 bytes. Somewhat inspired by FreeBSD, which
only changed the offset to a "vm_offset_t".

Includes updates for the i386, pc532 and sh3 mmmmap from Jason Thorpe.

branches: 1.4.2; 1.4.12;
Start putting in hooks for non-zs console devices.

branches: 1.3.6;
fix problems in many d_mmap routines:
- returned EOPNOTSUPP rather than -1.
- no check for negative offset.
many of these fix potential security problems in these drivers.


XXX XXX XXX
the d_mmap cdev routine should be changed to have a prototype like:
paddr_t (*d_mmap) __P((dev_t, off_t, int));

by someone!

Merge paddr_t changes into the main branch.

branches: 1.1.1;
Initial revision

These devices will never be found on sun4u machines.

branches: 1.1.1;
Initial revision

These devices will never be found on sun4u machines.

branches: 1.1.1;
Initial revision

Get rid of a bunch of obsolete files.

branches: 1.7.4;
Make 64-bit clean.

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

Change the kernel mmap interface so that the offset to map is an
"off_t" and the return value is a "paddr_t" to allow mappings
at offsets past 2^31 bytes. Somewhat inspired by FreeBSD, which
only changed the offset to a "vm_offset_t".

Includes updates for the i386, pc532 and sh3 mmmmap from Jason Thorpe.

branches: 1.4.8; 1.4.18;
completely remove Mach VM support. all that is left is the all the
header files as UVM still uses (most of) these.

#include <dev/sbus/sbusvar.h>

Merge paddr_t changes into the main branch.

branches: 1.1.1;
Initial revision

Get rid of a bunch of obsolete files.

branches: 1.4.4;
remove include of <vm/vm.h>. <vm/vm.h> -> <uvm/uvm_extern.h>

branches: 1.3.8;
remove opt_uvm.h

#include <dev/sbus/sbusvar.h>

branches: 1.1.1;
Initial revision

Get rid of a bunch of obsolete files.

branches: 1.6.4;
remove include of <vm/vm.h>. <vm/vm.h> -> <uvm/uvm_extern.h>

add some casts to (u_long) to shut up gcc. cleanup unused variables

branches: 1.4.2;
Start putting in hooks for non-zs console devices.

branches: 1.3.8;
#include <dev/sbus/sbusvar.h>

Periodic update: now starts probing devices.

branches: 1.1.1;
Initial revision

Get rid of a bunch of obsolete files.

branches: 1.2.4;
Make 64-bit clean.

branches: 1.1.1;
Initial revision

Get rid of a bunch of obsolete files.

branches: 1.1.1;
Initial revision

These drivers are now in sys/dev/sun

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

Change the kernel mmap interface so that the offset to map is an
"off_t" and the return value is a "paddr_t" to allow mappings
at offsets past 2^31 bytes. Somewhat inspired by FreeBSD, which
only changed the offset to a "vm_offset_t".

Includes updates for the i386, pc532 and sh3 mmmmap from Jason Thorpe.

branches: 1.7.2; 1.7.12;
Make pbrobeget() and probeset() work for 64-bit values as well. To do this
the arguments are changed so the address is first and the ASI second so we
can have the address in %o0:%o1 and not worry about unused registers.

Also a bit of copyright cleanup.

catch up with probe[gs]et() changes.

Start putting in hooks for non-zs console devices.

branches: 1.4.6;
fix problems in many d_mmap routines:
- returned EOPNOTSUPP rather than -1.
- no check for negative offset.
many of these fix potential security problems in these drivers.


XXX XXX XXX
the d_mmap cdev routine should be changed to have a prototype like:
paddr_t (*d_mmap) __P((dev_t, off_t, int));

by someone!

#include <dev/sbus/sbusvar.h>

Merge paddr_t changes into the main branch.

branches: 1.1.1;
Initial revision

These drivers are now in sys/dev/sun

branches: 1.1.1;
Initial revision

These devices will never be found on sun4u machines.

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

Change the kernel mmap interface so that the offset to map is an
"off_t" and the return value is a "paddr_t" to allow mappings
at offsets past 2^31 bytes. Somewhat inspired by FreeBSD, which
only changed the offset to a "vm_offset_t".

Includes updates for the i386, pc532 and sh3 mmmmap from Jason Thorpe.

branches: 1.4.2; 1.4.12;
Make pbrobeget() and probeset() work for 64-bit values as well. To do this
the arguments are changed so the address is first and the ASI second so we
can have the address in %o0:%o1 and not worry about unused registers.

Also a bit of copyright cleanup.

catch up with probe[gs]et() changes.

branches: 1.2.8;
Merge paddr_t changes into the main branch.

branches: 1.1.1;
Initial revision

Merge thorpej-cfargs2.

branches: 1.35.8;
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: 1.34.14;
Clean up initialization of com_regs structure, in preparation for
some additional changers.

branches: 1.33.52; 1.33.54;
#include <sys/bus.h> instead of <machine/bus.h>.

also look for "FJSV,su" as found on PRIMEPOWER machines.
while here, copy some code from openbsd that should allow this to work
on the Fujitsu SPARC Enterprise Mx000 systems.

branches: 1.31.2;
also attach for su16552 compatible devices.

branches: 1.30.4; 1.30.6;
Match "rsc-console" and set its baud rate to 115200.
Makes the 501-5856 (RSC2) card usuable as console on a Fire 280R.

comcons in dev/ic/com.c is now declared as static, so don't peek it
directly but use it via cn_tab.

Tested on my Netra X1.

remove clause #3 from my license where there are no other
copyright holders involved.

branches: 1.27.2; 1.27.4; 1.27.6;
Split device_t and softc for all com(4) devices (well, everything that
uses a com_softc backend). Use proper types and ansify where appropriate.

branches: 1.26.34; 1.26.54; 1.26.58;
Add an option COM_REGMAP to allow com(4) to use an array of register indices.
This allows us to convert aucom to just another com attachment, and cleanup
some code in the com_arbus.c.

Additionally, we use a common com_cleanup routine rather than having a
zillion copies of it in the attachment points.

This has been tested on a number architectures, and it has been shown to get
close to comparable performance when COM_REGMAP is defined, and comparable
when it is not defined.

Approved by core@. Fixes PR port-evbmips/32362.

branches: 1.25.4;
Use device_unit().

branches: 1.24.2; 1.24.4; 1.24.6;
ANSIfication: u_intN_t -> uintN_t, use ANSI function declarations/definitions
instead of K&R ones.

branches: 1.23.2; 1.23.4; 1.23.6;
merge ktrace-lwp.

branches: 1.22.2;
- sprinkle const
- avoid variable shadow

Use the promlib I/O routines.

__KERNEL_RCSID()

branches: 1.19.2;
Also pass a type argument to comcnattach() and com_kgdb_attach().
comspeed() (and thus cominit()) may need this information.

Remove the `flags' argument from bus_intr_establish().

Add trailing ; to CFATTACH_DECL.

Use CFATTACH_DECL().

Declare all cfattach structures const.

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.

Spell 'should' correctly.

branches: 1.12.4;
Overhaul bus space.

bus_space_handle_t now holds an address and two ASIs, one for normal accesses
and one for streaming accesses. This allows to map individual handles
different ways, so some can use MMU bypass accesses and others use virtual
addresses. bus_space_map() will now create handles that use bypass accesses
unles BUS_SPACE_MAP_LINEAR is passed in. So only pass in BUS_SPACE_MAP_LINEAR
if you absolutely *need* to use bus_space_vaddr(). This removes at least one
extra level of indirection and should reduce TLB misses.

32-bit kernels have problems accessing 64-bit addresses, so they always use
virtual addresses.

convert to using <dev/ebus/ebusvar.h> and it's struct member names.

Get PCI working with the new bus_space*.

Rename EBUS_PADDR_FROM_REG uses to EBUS_ADDR_FROM_REG.

branches: 1.8.4;
use <dev/ebus/ebusreg.h>

Handle the situation where console input and console output go to different
devices. (N.B. The com driver does not handle different instances as input
and output devices, so this only works for two different drivers.)

branches: 1.6.2;
Use OF_getprop instead of getprop.

Also attach apropriate devices named "serial".

branches: 1.4.4;
com_attach_subr() prints the newline for us.

Make softintr_establish prototype match other ports, avoiding compile
warnings.

branches: 1.2.2;
Remove debug printfs.

Guts of the Sun Keyboard/Mouse line disciplines.
N.B. They don't recognize L1-A yet.

this file has not been used for a long time.

New callout mechanism with two major improvements over the old
timeout()/untimeout() API:
- Clients supply callout handle storage, thus eliminating problems of
resource allocation.
- Insertion and removal of callouts is constant time, important as
this facility is used quite a lot in the kernel.

The old timeout()/untimeout() API has been removed from the kernel.

branches: 1.2.2;
Change the semantics of splsoftclock() to be like other spl*() functions,
that is priority is rasied. Add a new spllowersoftclock() to provide the
atomic drop-to-softclock semantics that the old splsoftclock() provided,
and update calls accordingly.

This fixes a problem with using the "rnd" pseudo-device from within
interrupt context to extract random data (e.g. from within the softnet
interrupt) where doing so would incorrectly unblock interrupts (causing
all sorts of lossage).

XXX 4 platforms do not have priority-raising capability: newsmips, sparc,
XXX sparc64, and VAX. This platforms still have this bug until their
XXX spl*() functions are fixed.

branches: 1.1.1;
Initial revision

CFATTACH_DECL_NEW

branches: 1.8.78; 1.8.84; 1.8.88;
Remove obsolete kgdb prototypes.

branches: 1.7.14; 1.7.16;
ANSIfy: u_intN_t -> uintN_t, remove __P(), fix function definitions.

branches: 1.6.2; 1.6.4; 1.6.6;
merge ktrace-lwp.

branches: 1.5.16;
`stdin' and `stdout' are obsolete.

Sync with sparc: rename
stdinnode => prom_stdin_node,
fbnode => prom_stdout_node.

branches: 1.3.28;
Fix the sparc64 console.

Unlike the other Sun machines, UltraSPARCs can have consoles run on different
chips than zs, so we need to support them. So, here we go:

Add a new PROM console driver with a major number and everything.
This is the default driver if nothing else attaches. It does not
use the keyboard driver since the PROM translates keystrokes itself.
(Unfortunately it also swallows L1-A).

Have the keyboard driver take over the console when it attaches on a
serial port. When a serial port detects a keyboard and attaches the
keyboard driver, it needs to provide a set of consdev vectors. They
keyboard driver will use those to send I/O to the keyboard and mouse.

branches: 1.2.8;
RCS ID police

branches: 1.1.1;
Initial revision

prom_printf converts "\n" to "\r\n" internally, so omit "\r".

branches: 1.27.6;
Remove an unused variable, avoid unused variable warning.

branches: 1.26.2; 1.26.4;
Set up cn_tab in bootstrap() instead of initializing it statically.
Fixes -Wno-common fallout, idea from tsutsui.

branches: 1.25.12;
Ansify function definitions w/o arguments. Generated with sed.

branches: 1.24.20; 1.24.28; 1.24.34;
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.

printf -> DPRINTF

branches: 1.22.8; 1.22.16; 1.22.26; 1.22.28; 1.22.30;
Initialize struct consdev in C99 style

branches: 1.21.14; 1.21.16;
ANSIfy: u_intN_t -> uintN_t, remove __P(), fix function definitions.

branches: 1.20.2; 1.20.4; 1.20.6;
Check the PROM stdin path for the string "/usb@0". If we find a match, call
ukbd_cnattach(), so that the USB keyboard will become the console keyboard.
Makes the keyboard work on a Blade 100.

merge ktrace-lwp.

branches: 1.18.2;
- sprinkle const
- avoid variable shadow

branches: 1.17.14;
Use the promlib I/O routines.

More on fbnode to prom_stdout_node rename.

Sync with sparc: rename
stdinnode => prom_stdin_node,
fbnode => prom_stdout_node.

don't initialize an int with NULL.

__KERNEL_RCSID()

branches: 1.12.6;
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: 1.11.6; 1.11.14;
instance-to-path works on instances not nodes.

Fix incorrect parentheses.

branches: 1.9.4;
#include <machine/sparc64.h> for prom_printf() prototype.

Use prom_printf() for debugging instead of printf() since the console may
not be functional.

Break into debugger by typing `+++++',

Get rid of vaddrs.h.

branches: 1.5.4;
Fix the sparc64 console.

Unlike the other Sun machines, UltraSPARCs can have consoles run on different
chips than zs, so we need to support them. So, here we go:

Add a new PROM console driver with a major number and everything.
This is the default driver if nothing else attaches. It does not
use the keyboard driver since the PROM translates keystrokes itself.
(Unfortunately it also swallows L1-A).

Have the keyboard driver take over the console when it attaches on a
serial port. When a serial port detects a keyboard and attaches the
keyboard driver, it needs to provide a set of consdev vectors. They
keyboard driver will use those to send I/O to the keyboard and mouse.

Have prom_cngetc() wait until input has been typed.

this does not need auxreg.h

- Implement cnbell() -- ring the console bell. The cn_bell entrypoint
is optional.
- Add cn_bell to statically allocated consdevs as appropriate.

branches: 1.1.2; 1.1.4;
Separate out the generic console handling from zs.c

Rework the driver to add EBus DMA support and improve APC DMA support.
Audio-related stuff is left almost intact.

* support audiocs at ebus playback and capture
tested on krups and u5 (thanks, martin)
* make first attempt at supporting audiocs at sbus capture
* nb: full-duplex is not tested
* while here, fix CSAUDIO_MONITOR_MUTE to be of CSAUDIO_MONITOR_CLASS
i.e. outputs.monitor.mute -> monitor.monitor.mute

Ok by pk, eeh.

Rename EBUS_PADDR_FROM_REG uses to EBUS_ADDR_FROM_REG.

branches: 1.7.4;
use <dev/ebus/ebusreg.h>

branches: 1.6.4;
Add a `device class' interrupt level argument (from machine/intr.h)
to bus_interrupt_establish().

It's currently only used in sparc64/dev/psycho.c to assign a CPU interrupt
level to devices in PCI slots.

branches: 1.5.2;
add a (u_long) cast for quietness

Implement the more flexiable `evcnt' interface as discussed (briefly) on
tech-kern and now documented in evcnt(9).

branches: 1.3.2;
- auxio cleanup and sbus support.
- make GENERIC64 include GENERIC and set the 3 optoins it needs. suggested
by hubert feyrer.
- add a comment that we maybe should use the `bpp' driver, not the lpt, on
the ebus because the `bpp' driver does DMA already.
- ebus_attach_args got a member renamed

add a couple of comments.

branches: 1.1.2; 1.1.4;
add ebus attachment for cs4231. this does not work as it requires ebus DMA and will panic if enabled. but it should otherwise be mostly complete.

These are replaced by drivers in <sys/dev/sbus>.

#include <dev/sbus/sbusvar.h>

remove sparc64 "options BUS_DMA" -- it is now standard

Merge paddr_t changes into the main branch.

branches: 1.2.2;
General update:

Added genassym.cf
Removed lderr which should never have gotten in
Removed lots of dead code from locore.s
Added some softint stuff to intr.c
Added support for halt -p
esp and le both use bus_dmamap_*() functions now
instead of kdvma_mapin()
groundwork for PCI (but we still have no drivers for
any sun4u PCI devices)

branches: 1.1.1;
Initial revision

These are replaced by drivers in <sys/dev/sbus>.

branches: 1.1.1;
Initial revision

These are replaced by drivers in <sys/dev/sbus>.

branches: 1.1.1;
Initial revision

Change the devhandle_from_*() functions to also take a "super handle",
from which the newly created handle will inherit it's implementation.
The root implementation for a new handle type is used if an invalid
"super handle" is passed.

Merge thorpej-cfargs2.

branches: 1.67.4;
Associate the OpenBoot / OpenFirmware node with attached devices
at config_found() time.

branches: 1.66.2; 1.66.4;
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: 1.65.2;
malloc(9) -> kmem(9) -- just the simple, straightforward conversions for now.

branches: 1.64.8;
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: 1.63.4;
merge the ebus@pci attach output to be like most PCI drivers:

ebus0 at pci1 dev 1 function 0
ebus0: Sun Microsystems PCIO Ebus2, revision 0x01

becomes:

ebus0 at pci1 dev 1 function 0: Sun Microsystems PCIO Ebus2, revision 0x01

src is too big these days to tolerate superfluous apostrophes. It's
"its", people!

Match the Altera ebus bridge, as found on the Tadpole SPARCle.

branches: 1.60.6;
avoid writing 1 byte beyond the end of the string promlib.c has given us.
instead of forcing a nul byte afterwards, KASSERT() that the final byte
already is a nul. if there are broken proms... well, we can fix them.

this, plus one more change, allows my SS20 to boot multiuser.

branches: 1.59.2; 1.59.6;
add per ivec event counters

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

split auxio, ebus, psycho, sab.

branches: 1.56.2;
re-add local ebusvar.h, and use it to share between ebus.c and ebus_mainbus.c

Remove unnecessary headers.

branches: 1.54.2; 1.54.4;
various aprint_* fixes.

branches: 1.53.14;
Remove unnecessary includes.

branches: 1.52.4;
remove clause #3 from my license where there are no other
copyright holders involved.

branches: 1.51.2; 1.51.4; 1.51.6;
use aprint_*_dev and device_xname
OK martin

branches: 1.50.68;
ANSIfy: u_intN_t -> uintN_t, remove __P(), fix function definitions.

ANSIfication: u_intN_t -> uintN_t, use ANSI function declarations/definitions
instead of K&R ones.

branches: 1.48.2; 1.48.4; 1.48.6;
merge ktrace-lwp.

branches: 1.47.2;
- sprinkle const
- avoid variable shadow

Update for new pci_devinfo(9) signature.

Use prom_getpropstring().

Make sure prom_getprop is called with the size pointed to by nitem
initialized. (Some of these are more paranoia, but two were actual bugs.)
Print error codes in some panic messages.

Rename PROM_getprop*() => prom_getprop*().

Nuke bcopy/bzero.

change PROM_getprop() from taking a "void **" for the storage, to a
"void *", and do the extra de-reference directly in the function. this
avoids having to cast dozens of different types to "void **", which sets
of GCC3's strict-aliasing. testing by martin@

__KERNEL_RCSID()

branches: 1.39.2;
Avoid strict-alias warnings in gcc 3.3.

DMA, not dma nor Dma.

Use aprint_normal() for cfprint routines.

Remove the `flags' argument from bus_intr_establish().

bus_intr_establish() signature change.
The additional `fast trap' argument is ignored in these drivers.
BUS_INTR_ESTABLISH_FASTTRAP and BUS_INTR_ESTABLISH_SOFTINTR are no longer used.

Add trailing ; to CFATTACH_DECL.

Use CFATTACH_DECL().

Declare all cfattach structures const.

convert to using <dev/ebus/ebusvar.h> and it's struct member names.

Get PCI working with the new bus_space*.

branches: 1.29.4;
clean up ebus:
- kill dead dma code
- remove icky self->dv_parent casts

audiocs @ ebus doesn't crash anymore, but it doesn't appear to work
yet either...

getprop* -> PROM_getprop*

Change bus_space_mmap() signature to the official one.

Get rid of spurious OF_getprop().

Sun Blade 100 support (and some psycho fixes from Jason Wright).

branches: 1.24.2;
Don't match ebus nodes not called "ebus" like the ones on hme cards.

PCI overhaul.

branches: 1.22.2;
fix lint exposed by GCC 3.0 20010604 (prerelease).

correct some comments. <80 char debug statements.

do not force ebus interrupts to have bit 0x20 set.

branches: 1.19.2;
ebus_find_node(): plug memory leak; make debug output meaningfuller.

Warning police. Mostly useless format warnings. Switch Makefile for
kernel compiles to the warning flags that other ports also use.

ebus sc_is is a pointer now, already.

If there is no "interrupt-map" property on the ebus node, assume the
child "interrupt" properties are already in a format suitable for
the parent bus.

Add a `device class' interrupt level argument (from machine/intr.h)
to bus_interrupt_establish().

It's currently only used in sparc64/dev/psycho.c to assign a CPU interrupt
level to devices in PCI slots.

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

remove/move more mach vm header files:

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

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

Enable interrupts.

branches: 1.11.2;
ebus_ca needs to specify enough memory to hold an ebus_softc, not a struct device.

ensure an ebus really does exist in ebus_match; fixes spurious attachments with the ebus on a hme pci card.

branches: 1.9.2;
expand a comment slightly.

whole bunch of changes:
- merge IOMMU DVMA code from sbus/psycho into iommu.c. this code was
identical and a few minor inconsistencies had crept in. this way
keeps them all in sync.
- with this code gone from psycho, merge the psycho.c and psycho_bus.c
files. same with ebus/ebus_bus.c. delete the _bus.c files.
- add a _ds_boundary member to the dma segment structure, so that later
dma mappings can find this value.
- set _ds_boundary in machdep.c:_bus_dmamem_alloc().
- kill much dead code.

- auxio cleanup and sbus support.
- make GENERIC64 include GENERIC and set the 3 optoins it needs. suggested
by hubert feyrer.
- add a comment that we maybe should use the `bpp' driver, not the lpt, on
the ebus because the `bpp' driver does DMA already.
- ebus_attach_args got a member renamed

avoid a potential memory leak.

- store the ebus's parent so we can find the IOMMU
- use generic iommu routines in the ebus code (uses the above)
- add some more comments.

be slightly more verbose when attaching ebus devices.

branches: 1.3.2; 1.3.4;
find ebus device INO values via the "interrupt-map" and "interrupt-map-mask" properties.

avoid uninitalised pointers.

support for the UltraSPARC `Extension Bus' found on the PCI machines.
the bus space/dma code is cloned from the PCI code to do the same thing
which itself was cloned from the sbus bus space/dma code. the bus dma
code is non-functional at this point.

whole bunch of changes:
- merge IOMMU DVMA code from sbus/psycho into iommu.c. this code was
identical and a few minor inconsistencies had crept in. this way
keeps them all in sync.
- with this code gone from psycho, merge the psycho.c and psycho_bus.c
files. same with ebus/ebus_bus.c. delete the _bus.c files.
- add a _ds_boundary member to the dma segment structure, so that later
dma mappings can find this value.
- set _ds_boundary in machdep.c:_bus_dmamem_alloc().
- kill much dead code.

UltraSPARC IIi CPU has bits 6-10 of the INO hardwired to 1. when we
install an interrupt handler, make sure we set these bits to 1. now,
interrupt_vector in locore can find our registered interrupt handlers
and at least try to setup a call to them.

- store the ebus's parent so we can find the IOMMU
- use generic iommu routines in the ebus code (uses the above)
- add some more comments.

include opt_ddb.h

Fix doubled 'the's in comments.

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

branches: 1.3.2; 1.3.4; 1.3.8;
Change the pmap_extract() interface to:
boolean_t pmap_extract(pmap_t, vaddr_t, paddr_t *);
This makes it possible for the pmap to map physical address 0.

branches: 1.2.2;
Another general cleanup:

Remove the entire idea of fasttrap interrupts since V9 traps are really cheap,
the CPUs are really fast, and the completely different trap frames would make
these handlers really difficult to implement.

pmap_changeprot() was only used by the clock and one other place; deprecate it.

probeget() and probeset() now take 64-bit addresses even in 32-bit mode so we
can probe IO locations by physical addresses.

Some pmap cleanup.

Some more copyright cleanup.

support for the UltraSPARC `Extension Bus' found on the PCI machines.
the bus space/dma code is cloned from the PCI code to do the same thing
which itself was cloned from the sbus bus space/dma code. the bus dma
code is non-functional at this point.

fix various typos in comment, documentation and log messages.

Change the devhandle_from_*() functions to also take a "super handle",
from which the newly created handle will inherit it's implementation.
The root implementation for a new handle type is used if an invalid
"super handle" is passed.

Merge thorpej-cfargs2.

branches: 1.20.4;
Associate the OpenBoot / OpenFirmware node with attached devices
at config_found() time.

branches: 1.19.2; 1.19.4;
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: 1.18.2;
malloc(9) -> kmem(9) -- just the simple, straightforward conversions for now.

branches: 1.17.8;
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: 1.16.18;
Use newly introduced intrhand_alloc().

branches: 1.15.2;
sun4v: Removed a bunch of ifdef SUN4V since the CPU_ISSUN4V already has the necessary logic. Noticed by mrg@

Use device_lookup() to locate device instances

Generalize the code to allow for arbitrary interrupt wirings - with this change the serial console is usable on Sun Fire V445 systems - from OpenBSD - ok mrg@ martin@

Updates to pmap_bootstrap() for sun4v - parts from OpenBSD - OK martin@

#if 0 a variable just like their only use

branches: 1.10.2;
split device_t/softc for all remaining drivers.
replace "struct device *" with "device_t".
use device_xname(), device_unit(), etc.

branches: 1.9.2;
add missing __KERNEL_RCSID().

branches: 1.8.2; 1.8.6;
initialise ih_ivec.

- make a bunch of functions static
- set nmapmask to 1 before prom_getprop(), so we don't trigger an ENOMEM
- initialise ih_pending

use device_private() to find the matching pyro leaf, now that pyro
has been device_t-ified.

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

branches: 1.4.2;
split auxio, ebus, psycho, sab.

branches: 1.3.2; 1.3.4;
minor clean up.

initial port of these drivers to netbsd. both pyro(4) and ebus(4) at
mainbus depend upon other as-yet uncommited changes.

branches: 1.1.1;
Initial revision

this has moved to dev/ebus

branches: 1.1.2; 1.1.18;
support for the UltraSPARC `Extension Bus' found on the PCI machines.
the bus space/dma code is cloned from the PCI code to do the same thing
which itself was cloned from the sbus bus space/dma code. the bus dma
code is non-functional at this point.

Generalize the code to allow for arbitrary interrupt wirings - with this change the serial console is usable on Sun Fire V445 systems - from OpenBSD - ok mrg@ martin@

branches: 1.11.12;
#include <sys/bus.h> instead of <machine/bus.h>.

split auxio, ebus, psycho, sab.

branches: 1.9.2;
re-add local ebusvar.h, and use it to share between ebus.c and ebus_mainbus.c

branches: 1.8.86; 1.8.92;
this file is no longer used.

bus_space_map2 no longer exists.

branches: 1.6.4;
clean up ebus:
- kill dead dma code
- remove icky self->dv_parent casts

audiocs @ ebus doesn't crash anymore, but it doesn't appear to work
yet either...

PCI overhaul.

branches: 1.4.8;
- auxio cleanup and sbus support.
- make GENERIC64 include GENERIC and set the 3 optoins it needs. suggested
by hubert feyrer.
- add a comment that we maybe should use the `bpp' driver, not the lpt, on
the ebus because the `bpp' driver does DMA already.
- ebus_attach_args got a member renamed

- store the ebus's parent so we can find the IOMMU
- use generic iommu routines in the ebus code (uses the above)
- add some more comments.

branches: 1.2.2; 1.2.4;
find ebus device INO values via the "interrupt-map" and "interrupt-map-mask" properties.

support for the UltraSPARC `Extension Bus' found on the PCI machines.
the bus space/dma code is cloned from the PCI code to do the same thing
which itself was cloned from the sbus bus space/dma code. the bus dma
code is non-functional at this point.

Remove the envctrl driver, it is superseeded by the more general pcfiic @
ebus. Add the SB1000/SB2000 fan controll driver (tda). From OpenBSD.
Move config files over to direct configuration of i2c devices.

branches: 1.11.14; 1.11.20;
Remove clause 3 and 4 from TNF licenses

branches: 1.10.2; 1.10.4;
sme_cookie is not needed when SME_DISABLE_REFRESH is set.

Split device_t/softc for envctrl(4).

branches: 1.8.14;
Extend the envsys2 API (one more time, sorry) as defined in:

http://mail-index.netbsd.org/tech-kern/2007/11/09/0001.html

sysmon_envsys_create() and sysmon_envsys_destroy() were added to
create/destroy sysmon_envsys objects (and its TAILQ/LIST for sensors/events).

sysmon_envsys_sensor_attach() and sysmon_envsys_sensor_detach() were
added to attach/detach sensors to a specified sysmon_envsys device.

The events framework is now per device and configurable via the
ENVSYS_SETDICTIONARY ioctl or /etc/envsys.conf and envstat(8).

Update all users and documentation to reflect these changes.

branches: 1.7.2;
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: 1.6.8; 1.6.10; 1.6.12; 1.6.16;
Disable monitoring in the Integer sensors, they are just informative
and shouldn't need it anyway.

branches: 1.5.2;
Merge some of the less invasive changes from the vmlocking branch:

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

Imported envsys 2, a brief description of the new features:
(Part 2: drivers)

* Support for detachable sensors.
* Cleaned up the API for simplicity and efficiency.
* Ability to send capacity/critical/warning events to powerd(8).
* Adapted all the code to the new locking order.
* Compatibility with the old envsys API: the ENVSYS_GTREINFO
and ENVSYS_GTREDATA ioctl(2)s are supported.
* Added support for a 'dictionary based communication channel' between
sysmon_power(9) and powerd(8), that means there is no 32 bytes event
size restriction anymore.
* Binary compatibility with old envstat(8) and powerd(8) via COMPAT_40.
* All drivers with the n^2 gtredata bug were fixed, PR kern/36226.

Tested by:

blymn: smsc(4).
bouyer: ipmi(4), mfi(4).
kefren: ug(4).
njoly: viaenv(4), adt7463.c.
riz: owtemp(4).
xtraeme: acpiacad(4), acpibat(4), acpitz(4), aiboost(4), it(4), lm(4).

branches: 1.3.2;
Define microvoltage scale factor which was previously a magic constant.

branches: 1.2.2; 1.2.4;
Correct envsys ranges. From njoly@

Add envctrl(4): Sun Ultra Enterprise 450 environmental monitoring driver.
Also add accompanying i2c controller driver, pcf8584.
Both written by me. Some cosmetic improvements from Iain Hibbert.
ok <martin>

Remove the envctrl driver, it is superseeded by the more general pcfiic @
ebus. Add the SB1000/SB2000 fan controll driver (tda). From OpenBSD.
Move config files over to direct configuration of i2c devices.

branches: 1.5.14; 1.5.20;
Remove clause 3 and 4 from TNF licenses

branches: 1.4.16; 1.4.18; 1.4.20;
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: 1.3.2; 1.3.4; 1.3.14; 1.3.16;
Define microvoltage scale factor which was previously a magic constant.

branches: 1.2.2;
We can't support them in a clean way, but still note the bus addresses
of the disk failure LEDs.

branches: 1.1.2;
Add envctrl(4): Sun Ultra Enterprise 450 environmental monitoring driver.
Also add accompanying i2c controller driver, pcf8584.
Both written by me. Some cosmetic improvements from Iain Hibbert.
ok <martin>

These are replaced by drivers in <sys/dev/sbus>.

#include <dev/sbus/sbusvar.h>

Minor edit.

Assign copyright to TNF.

Merge paddr_t changes into the main branch.

branches: 1.2.2;
General update:

Added genassym.cf
Removed lderr which should never have gotten in
Removed lots of dead code from locore.s
Added some softint stuff to intr.c
Added support for halt -p
esp and le both use bus_dmamap_*() functions now
instead of kdvma_mapin()
groundwork for PCI (but we still have no drivers for
any sun4u PCI devices)

branches: 1.1.1;
Initial revision

These are replaced by drivers in <sys/dev/sbus>.

branches: 1.1.1;
Initial revision

These are replaced by drivers in <sys/dev/sbus>.

branches: 1.1.1;
Initial revision

Remove unused file.

branches: 1.1.1;
Initial revision

Remove another unused file.

branches: 1.1.1;
Initial revision

Remove unused file, superseeded by syssrc/dev/sun/fb.c.

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: 1.20.4; 1.20.12;
getprop* -> PROM_getprop*

machine/fbio.h -> dev/sun/fbio.h

branches: 1.18.2; 1.18.4;
remove pfourreg.h.

Change the kernel mmap interface so that the offset to map is an
"off_t" and the return value is a "paddr_t" to allow mappings
at offsets past 2^31 bytes. Somewhat inspired by FreeBSD, which
only changed the offset to a "vm_offset_t".

Includes updates for the i386, pc532 and sh3 mmmmap from Jason Thorpe.

branches: 1.16.2; 1.16.12;
Suns use black-on-white as the default rcons colors.

- Setting initial position of cursor is up to caller.
- Set cursor position properly for SPARC. From Juergen Hannken-Illjes.

Start putting in hooks for non-zs console devices.

SPARC console is black on white, and is centered by default.

Add arg to rcons_init() that when set causes screen to be cleared.

Insert missing code that defines screen metrics for rcons. This fixes the
more blatant rcons brokenness (ie no panics).

Sync with last two changes made to sys/arch/sparc/dev/fb.c (don't clear
screen, typo).

Fix typo on my behalf. From Juergen Hannken-Illjes.

Panic if rasops_init() fails us (should never be the case).

Make sure rasops_info descriptor is zeroed out before initializing.

Update configuration to match `rasops' fixes and config glue.

Leave font selection to 'rasops' until 'rasops1' has been completed and can
handle non {8,16} pixel wide fonts.

Bring sparc/sparc64 fb code and kernel configuration into line with
rcons changes.

branches: 1.3.8;
Periodic update: now starts probing devices.

Merge paddr_t changes into the main branch.

branches: 1.1.1;
Initial revision

kill a dead driver. the floppy driver will be shared with sparc anyway...

branches: 1.19.2; 1.19.4;
Correct various misspellings of 'transfer' and inflected forms.

In fdioctl(), allocate fd_formb dynamically when needed, rather than on
the stack, and remove the no-longer-necessary PHOLD()/PRELE() calls
in fdformat().

(This eliminates 1/3 of the instances of PHOLD()/PRELE() in the kernel code.)

XXX We still have too many mostly-redundant floppy drivers.

Implement the more flexiable `evcnt' interface as discussed (briefly) on
tech-kern and now documented in evcnt(9).

branches: 1.16.2;
Nuke dk_establish() from orbit except from those ports which still use
it to determine the boot device: mvme68k, pc532, macppc, ofppc. Those
platforms should be changed to use device_register(). In the mean time,
those ports defined __BROKEN_DK_ESTABLISH.

- auxio cleanup and sbus support.
- make GENERIC64 include GENERIC and set the 3 optoins it needs. suggested
by hubert feyrer.
- add a comment that we maybe should use the `bpp' driver, not the lpt, on
the ebus because the `bpp' driver does DMA already.
- ebus_attach_args got a member renamed

Use separate callouts for motor-on and motor-off. Fixes a condition
where the floppy driver would wedge because a motor-on timeout would
be cancelled by another I/O operation cancelling a motor-off timeout.

From enami tsugutomo <enami@sm.sony.co.jp>.

New callout mechanism with two major improvements over the old
timeout()/untimeout() API:
- Clients supply callout handle storage, thus eliminating problems of
resource allocation.
- Insertion and removal of callouts is constant time, important as
this facility is used quite a lot in the kernel.

The old timeout()/untimeout() API has been removed from the kernel.

Revamp interrupts again:

Fix a bug causing interrmittent panics in interrupt dispatch.
Use interrupt vectors for softints.
Add a new send_softint interface.
Improved D$ flushing.
Improve traptrace and other debugging enhancements.

Fix a bug in disksort_*() which caused non-optimal ordering when multiple
active partitions were on a single spindle. Add a b_rawblkno member to
struct buf which contains the non-partition-relative block number to sort
by.

Update for sys/buf.h/disksort_*() changes.

Remove old-style boot device recognition.

branches: 1.8.2; 1.8.8;
Another general cleanup:

Remove the entire idea of fasttrap interrupts since V9 traps are really cheap,
the CPUs are really fast, and the completely different trap frames would make
these handlers really difficult to implement.

pmap_changeprot() was only used by the clock and one other place; deprecate it.

probeget() and probeset() now take 64-bit addresses even in 32-bit mode so we
can probe IO locations by physical addresses.

Some pmap cleanup.

Some more copyright cleanup.

Make pbrobeget() and probeset() work for 64-bit values as well. To do this
the arguments are changed so the address is first and the ASI second so we
can have the address in %o0:%o1 and not worry about unused registers.

Also a bit of copyright cleanup.

catch up with probe[gs]et() changes.

branches: 1.5.4;
Change DIOCEJECT to do what's needed to eject a device before the eject
command (unlock for sd and cd) if no other partitions are open, return
EBUSY otherwise. DIOCEJECT will have the old semantic if its argument is not
0. The old ioctl has been renamed to ODIOCEJECT for binary compatibility.

defopt MEMORY_DISK_{HOOKS,SERVER,IS_ROOT}.

Make copyright notices with my name consistent.

defopt DDB.

branches: 1.1.1;
Initial revision

sparc64: fix interrupt level mapping for disk and and parallel devices
on SBUS-based machines
Change the mapping from PIL_SCSI to PIL_BIO, so that they interrupt above
the highest soft interrupt (softserial)
Remove unused PIL_SCSI, PIL_FDSOFT, PIL_AUSOFT and fix the printf in fdc.c
Add "socal" and "SUNW,bpp" to the interrupt map.

branches: 1.51.6;
Merge thorpej-cfargs2.

branches: 1.50.8;
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: 1.49.2;
malloc(9) -> kmem(9) -- just the simple, straightforward conversions for now.

branches: 1.48.8;
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.

make *fd*.c's fd_dev_to_type() always a static inline. some
have it as a const, and have code to copy the defaults to
modify them before using them, but that probably requires a
real test to feel confident in changing.

add or avoid fallthru comments.

Rename min/max -> uimin/uimax for better honesty.

These functions are defined on unsigned int. The generic name
min/max should not silently truncate to 32 bits on 64-bit systems.
This is purely a name change -- no functional change intended.

HOWEVER! Some subsystems have

#define min(a, b) ((a) < (b) ? (a) : (b))
#define max(a, b) ((a) > (b) ? (a) : (b))

even though our standard name for that is MIN/MAX. Although these
may invite multiple evaluation bugs, these do _not_ cause integer
truncation.

To avoid `fixing' these cases, I first changed the name in libkern,
and then compile-tested every file where min/max occurred in order to
confirm that it failed -- and thus confirm that nothing shadowed
min/max -- before changing it.

I have left a handful of bootloaders that are too annoying to
compile-test, and some dead code:

cobalt ews4800mips hp300 hppa ia64 luna68k vax
acorn32/if_ie.c (not included in any kernels)
macppc/if_gm.c (superseded by gem(4))

It should be easy to fix the fallout once identified -- this way of
doing things fails safe, and the goal here, after all, is to _avoid_
silent integer truncations, not introduce them.

Maybe one day we can reintroduce min/max as type-generic things that
never silently truncate. But we should avoid doing that for a while,
so that existing code has a chance to be detected by the compiler for
conversion to uimin/uimax without changing the semantics until we can
properly audit it all. (Who knows, maybe in some cases integer
truncation is actually intended!)

branches: 1.44.16; 1.44.18;
Use C99-style initializers for struct dkdriver.

We have three sets of DTYPE_ constants in the kernel:
altq Drop Type
disklabel Disk Type
file Descriptor Type
(not to mention constants that contain the string DTYPE).
Let's make them two, by changing the disklabel one to be DisK TYPE since the
other disklabel constants seem to do that. Not many userland programs use
these constants (and the ones that they do are mostly in ifdefs). They will
be fixed shortly.

branches: 1.42.2;
Sync with sparc/dev/fd.c:1.155.

Fix panic() on opening fd(4), caused by a wrong pointer passed to memset().

I'm not sure why this 18 year old bug didn't cause problem before
(at least my old 5.99.23 kernel worked), but probably it's triggered
by new gcc 4.8 which might do more aggressive memory allocation.
The problem is found by Nobuyoshi Sato on trying eject(1) against fd(4).

Should be pulled up to netbsd-7.

branches: 1.41.2;
Add d_discard to all struct cdevsw instances I could find.

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

Add d_discard to all struct bdevsw instances I could find.

I've set them all to nodiscard. Some of them (wd, dk, vnd, ld,
raidframe, maybe cgd) should be implemented for real.

branches: 1.39.2;
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.

branches: 1.38.2;
Make it compile again

phase 1 of disk geometry cleanup:
- centralize the geometry -> plist code so that we don't have
n useless copies of it.

branches: 1.36.2; 1.36.8; 1.36.12; 1.36.14; 1.36.22;
inline -> static inline
For successful gcc 4.5 builds.

CFATTACH_DECL_NEW

branches: 1.34.2;
Remove implicit include <dev/sbus/sbusvar.h> from autoconf.h, and
add it explicitly in files depending on it.

branches: 1.33.2; 1.33.4;
A pointer typedef entails trading too much flexibility to declare const
and non-const types, and the kernel uses both const and non-const
PMF qualifiers and device suspensors, so change the pmf_qual_t and
device_suspensor_t typedefs from "pointers to const" to non-pointer,
non-const types.

branches: 1.32.2;
Expand PMF_FN_* macros.

Convert shutdownhook_establish() to pmf_device_register1().

XXX This should be done as part of an overall plan to support
power management and device detachment. However, in order to do
that, I would first have to invent sbus_intr_disestablish(). This
is being done at this time in order to aid in the effort to eliminate
shutdownhook_establish().

bzero -> memset

branches: 1.29.2;
g/c BUFQ_FOO() macros and use bufq_foo() directly.

kill MALLOC and FREE macros.

make this compile

replace bitmask_snprintf(9) with snprintb(3)

branches: 1.25.4;
KNF: space after comma -- be consistent!

add a missing close-parenthesis. (HI CEGGER!)

use device_lookup_private to get softc

branches: 1.22.2; 1.22.4;
Remove clause 3 and 4 from TNF licenses

branches: 1.21.2; 1.21.4;
use aprint_*_dev and device_xname
OK martin

branches: 1.20.6;
Merge vmlocking2 to head.

branches: 1.19.2; 1.19.6;
don't include sys/intr.h twice, why aren't the includes sorted?

Use the softint API.

Sync with src/sys/sparc/dev/fd.c change to use softint(9) API.

XXX Please keep these two in sync as this one is a drop-in replacement
for the sparc version and the idea is to have both sparc and sparc64
use the same file one day.

branches: 1.16.2;
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.

Merge disk init changes from the vmlocking branch. These seperate init /
destroy of 'struct disk' from attach / detach.

branches: 1.14.4; 1.14.6; 1.14.8;
It's not a good idea for device drivers to modify b_flags, as they don't
need to understand the locking around that field. Instead of setting
B_ERROR, set b_error instead. b_error is 'owned' by whoever completes
the I/O request.

branches: 1.13.2; 1.13.4;
Merge some of the less invasive changes from the vmlocking branch:

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

branches: 1.12.4;
fix a couple of syntax issues in sparc code from Tobias Nygren

move definition of FTC_FLIP to auxioreg.h to mirror sparc

Fixed formatting. Problem was that we were trying to get the result
of a data transfer operation immediately after the data transfer
was finished, instead of waiting for the chip to interrupt us and
tell us that it was finished and had the result for us. This worked
okay for read and write since the operation would be finished very
shortly after the data transfer completed. However, with formatting,
the chip still had most of the rest of the track to do, so we ended
up timing out before the operation was finished.

branches: 1.9.2; 1.9.4; 1.9.6;
Correct gap2 length from ISA driver.

XXX The machine no longer becomes unusable when formatting, but it still
doesn't format properly.

more caddr_t fallout.

fix fallout from caddr_t changes.

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

Deallocate resources where possible when we fail to attach.

XXX Somebody needs to write bus_intr_disestablish().

add support for drvctl properties

merge remaining differences from sparc driver in

branches: 1.2.2;
Rename the B_XXX flag to B_DEVPRIVATE flag since it was never used for
debugging and its main use is in device drivers. Its used there to signal
that the flagged buffer has a special meaning or should be handled
differently.

OK'd by Bill Sudenmund on tech-kern.

branches: 1.1.2; 1.1.4; 1.1.6; 1.1.8; 1.1.10;
Initial support for floppy drives on sparc64. This has been tested
on an Ultra 2 and works fine, apart from formatting which is known
to be broken. It failed to work on an ebus machine. The ebus
support compiles fine, but I don't have hardware for testing. This
code is based on the sparc driver with hints from OpenBSD on how
to do the sbus and ebus attachments, along with help from martin@
and mrg@.

Initial commit approved by martin@

TODO:
- fix ebus support
- fix XXX issues
- check resource deallocation
- fix formatting
- merge remaining differences from sparc driver
- split out back end chip support
- have sparc driver use new common back end chip support
- adapt to newlock when branch is ready
- adapt to "disk-info" property dictionary

branches: 1.1.2; 1.1.4; 1.1.8;
Initial support for floppy drives on sparc64. This has been tested
on an Ultra 2 and works fine, apart from formatting which is known
to be broken. It failed to work on an ebus machine. The ebus
support compiles fine, but I don't have hardware for testing. This
code is based on the sparc driver with hints from OpenBSD on how
to do the sbus and ebus attachments, along with help from martin@
and mrg@.

Initial commit approved by martin@

TODO:
- fix ebus support
- fix XXX issues
- check resource deallocation
- fix formatting
- merge remaining differences from sparc driver
- split out back end chip support
- have sparc driver use new common back end chip support
- adapt to newlock when branch is ready
- adapt to "disk-info" property dictionary

dependant -> dependent

Remove clause 3 and 4 from TNF licenses

branches: 1.1.2; 1.1.4; 1.1.8; 1.1.58; 1.1.60; 1.1.62;
Initial support for floppy drives on sparc64. This has been tested
on an Ultra 2 and works fine, apart from formatting which is known
to be broken. It failed to work on an ebus machine. The ebus
support compiles fine, but I don't have hardware for testing. This
code is based on the sparc driver with hints from OpenBSD on how
to do the sbus and ebus attachments, along with help from martin@
and mrg@.

Initial commit approved by martin@

TODO:
- fix ebus support
- fix XXX issues
- check resource deallocation
- fix formatting
- merge remaining differences from sparc driver
- split out back end chip support
- have sparc driver use new common back end chip support
- adapt to newlock when branch is ready
- adapt to "disk-info" property dictionary

kill a dead driver. the floppy driver will be shared with sparc anyway...

branches: 1.1.1;
Initial revision

kill a dead driver. the floppy driver will be shared with sparc anyway...

branches: 1.2.26;
Assign my copyrights to TNF.

branches: 1.1.1;
Initial revision

Remove unnecessary <sys/malloc.h>.

Merge thorpej-cfargs2.

branches: 1.66.8;
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: 1.65.4;
Adapt to proplib api changes

Cleanup i2c bus acquire / release, centralizing all of the logic into
iic_acquire_bus() / iic_release_bus(). "acquire" and "release" hooks
no longer need to be provided by back-end controller drivers (only if
they need special handling, e.g. powering on the i2c controller).
This results in the removal of a bunch of rendundant code from each
back-end controller driver.

Assert that we are not in hard interrupt context in iic_acquire_bus(),
iic_exec(), and iic_release_bus().

Rename min/max -> uimin/uimax for better honesty.

These functions are defined on unsigned int. The generic name
min/max should not silently truncate to 32 bits on 64-bit systems.
This is purely a name change -- no functional change intended.

HOWEVER! Some subsystems have

#define min(a, b) ((a) < (b) ? (a) : (b))
#define max(a, b) ((a) > (b) ? (a) : (b))

even though our standard name for that is MIN/MAX. Although these
may invite multiple evaluation bugs, these do _not_ cause integer
truncation.

To avoid `fixing' these cases, I first changed the name in libkern,
and then compile-tested every file where min/max occurred in order to
confirm that it failed -- and thus confirm that nothing shadowed
min/max -- before changing it.

I have left a handful of bootloaders that are too annoying to
compile-test, and some dead code:

cobalt ews4800mips hp300 hppa ia64 luna68k vax
acorn32/if_ie.c (not included in any kernels)
macppc/if_gm.c (superseded by gem(4))

It should be easy to fix the fallout once identified -- this way of
doing things fails safe, and the goal here, after all, is to _avoid_
silent integer truncations, not introduce them.

Maybe one day we can reintroduce min/max as type-generic things that
never silently truncate. But we should avoid doing that for a while,
so that existing code has a chance to be detected by the compiler for
conversion to uimin/uimax without changing the semantics until we can
properly audit it all. (Who knows, maybe in some cases integer
truncation is actually intended!)