Convert the Alpha port's bus_space back-end to manage address space
with vmem(9) arenas (using statically-allocated private boundary tags
for very early-in-boot) rather than extent(9).

As a side-effect, there's arguments to some initialization functions
that are no longer required, so garbage-collect those, update all the
call sites.

Merge thorpej-cfargs2.

branches: 1.28.2;
Remove unnecessary #include <sys/malloc.h>

Don't use a bunch of switch() statements in the core logic drivers to select
the PCI interrupt initialization routine. Instead, register said routines
by systype in a link set, and look them up and invoke them in a new function
alpha_pci_intr_init().

The Tsunami / Typhoon chipsets have a static "monster window" for DMA
that allows for up to 32GB of RAM to be direct-mapped if the PCI device
can issue a 64-bit address (the monster window lives at 0x10000000000).
Enable this window and provide this to the PCI bus as a "dmat64".

branches: 1.25.2; 1.25.4;
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: 1.24.44;
Allow kernels without tsciic to build.

Add tsciic, a driver for the DECchip 21272 Core Logic chipset I2C controller.
Tested on DS20L.

KNF and TAB/space cleanup.

Remove a 'register' declaration. Noted in PR port-alpha/48148.

Add support for AlphaStation DS15.

Ported from OpenBSD via PR port-alpha/48148 by nullnilaki.
Note support for the secondary PCI bus still needs more improvements.

branches: 1.19.4; 1.19.14; 1.19.18;
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: 1.18.2;
Enable Pchip and Cchip error interrupts (machine checks) on DEC 6600
systems. Add some basic pretty-printing for those errors. Tested on
a DS20.

Give tsc(4)/tsp(4) some attention.
- Convert to CFATTACH_DECL_NEW().
- Sprinkle static on functions.
- Improve KNF conformance.
- Use C99 integer types.
- Recycle now-empty-and/or-unused softc structures.

branches: 1.16.2; 1.16.4;
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: 1.13.78; 1.13.86; 1.13.92;
merge ktrace-lwp.

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: 1.11.2;
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.

Use aprint_normal() for cfprint routines.

Use CFATTACH_DECL().

Declare all cfattach structures const.

* 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; 1.6.14;
bzero -> memset

branches: 1.5.4;
Allocate the DMA windows out of the PCI memory extent map after
DMA is initialized.

Do the previously slightly differently, to avoid confusing the internal
space extent maps. Pointed out by msaitoh@netbsd.org. (Someone should
send me an EV6 machine!)

Implement tsp_bus_get_window().

branches: 1.2.4;
Allow rd/line, rd/mult, and wr/inval.

branches: 1.1.2; 1.1.4; 1.1.6; 1.1.8; 1.1.14;
Support for EV6 Tsunami core logic and system type 6600.
This covers most or all of the presently-available 21264 systems.

Merge thorpej-cfargs2.

branches: 1.28.2;
Remove unnecessary #include <sys/malloc.h>

Don't use a bunch of switch() statements in the core logic drivers to select
the PCI interrupt initialization routine. Instead, register said routines
by systype in a link set, and look them up and invoke them in a new function
alpha_pci_intr_init().

The Tsunami / Typhoon chipsets have a static "monster window" for DMA
that allows for up to 32GB of RAM to be direct-mapped if the PCI device
can issue a 64-bit address (the monster window lives at 0x10000000000).
Enable this window and provide this to the PCI bus as a "dmat64".

branches: 1.25.2; 1.25.4;
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: 1.24.44;
Allow kernels without tsciic to build.

Add tsciic, a driver for the DECchip 21272 Core Logic chipset I2C controller.
Tested on DS20L.

KNF and TAB/space cleanup.

Remove a 'register' declaration. Noted in PR port-alpha/48148.

Add support for AlphaStation DS15.

Ported from OpenBSD via PR port-alpha/48148 by nullnilaki.
Note support for the secondary PCI bus still needs more improvements.

branches: 1.19.4; 1.19.14; 1.19.18;
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: 1.18.2;
Enable Pchip and Cchip error interrupts (machine checks) on DEC 6600
systems. Add some basic pretty-printing for those errors. Tested on
a DS20.

Give tsc(4)/tsp(4) some attention.
- Convert to CFATTACH_DECL_NEW().
- Sprinkle static on functions.
- Improve KNF conformance.
- Use C99 integer types.
- Recycle now-empty-and/or-unused softc structures.

branches: 1.16.2; 1.16.4;
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: 1.13.78; 1.13.86; 1.13.92;
merge ktrace-lwp.

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: 1.11.2;
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.

Use aprint_normal() for cfprint routines.

Use CFATTACH_DECL().

Declare all cfattach structures const.

* 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; 1.6.14;
bzero -> memset

branches: 1.5.4;
Allocate the DMA windows out of the PCI memory extent map after
DMA is initialized.

Do the previously slightly differently, to avoid confusing the internal
space extent maps. Pointed out by msaitoh@netbsd.org. (Someone should
send me an EV6 machine!)

Implement tsp_bus_get_window().

branches: 1.2.4;
Allow rd/line, rd/mult, and wr/inval.

branches: 1.1.2; 1.1.4; 1.1.6; 1.1.8; 1.1.14;
Support for EV6 Tsunami core logic and system type 6600.
This covers most or all of the presently-available 21264 systems.