branches: 1.20.8;
Split cpu from mainbus so that cpu can attached to other buses (like ofbus).

Put back that old (not) unused include file. But only include it
when ARMFPE is defined. Since that is the only time we use it.

Removing an old unused include

Change the value of tf_pc in undefined-instruction handlers on arm32. It now
always points to the undefined instruction in question. It's up to the
handler to advance it to the next instruction if it wants execution to
continue there. This is how things have always worked on arm26.

Update FPU detection to use remove_coproc_handler().

branches: 1.15.2;
Pass a softc pointer around everywhere, and use it when we need the name of
the device.

Don't pretend that fpe0 and fpu0 exist as devices (they don't).

G/C a few items related to /dev/cpu* support.

Add code to point out to the user if their CPU isn't supported, and to
suggest what kernel options to use to get it to work.

Change the meaning of cpu_class. It now has one value for each core we
support, which corresponds to one for each CPU_* option, or one for each
cpufunc structure.

Also remove some more residual code for the support of multiple and non-ARM
CPUs.

branches: 1.12.2;
Add CPU ID for ARM7500FE (determined empirically from two I've got here).

Kill cpu_host and cpu_flags: they weren't having any practical effect.

Remove support for /dev/cpu*. This code has never done anything useful anyway.

Remove spurious declaration of initialise_fpe().

NCPU will always be 1 if this file is being compiled at all, so don't bother
checking it.

Re-design identify_arm_cpu() to use a table of CPU types. This also makes
it easy for it to identify lots of CPU types, so have it do that too.

ARM7100 -> ARM710A, following information from reinoud.

Fix up indentation, and remove a spurious set of braces. Should be no
semantic change from the last revision.

fpe-sp, and the associated "options FPE", was deleted in 1997. G/C references
to it.

Move arm32 ports over to using <arm/armreg.h>, so <cpu.h> mostly contains
NetBSD-specific definitions.

This also entails some changes to the way CPU identification is done. I hope
I've got it right.

The cpu_type element of struct _cpu was only used in identify_arm_cpu().
Make it a local variable.

Part 2 of merge.... the dissapearance of mainbus from arm32 and hpcarm;
these parts were a 100% the same and i've included the extensions made by
hpcarm in the tree.
Checked for occurence of MD parts; none found.

kern/58195: arm: Support drvctl -d and -r for cpufeaturebus

This is required for detaching and re-attaching the vmt(4) driver on aarch64.

Various updates and improvements to cpu start up on arm/aarch64

- start sharing more code around the AP startup messaging.
- call arm_cpu_topology_set early so that ci_core_id is available for
drivers, e.g. bcm2835_intr.c
- both arm and aarch64 now have
- a static cpu_info_store array
- the same arm_cpu_{hatched,mbox}

Traiing whitespace

branches: 1.16.20; 1.16.26;
Sprinkle #include "opt_multiprocessor.h"

branches: 1.15.2;
Cleanup a few MULTIPROCESSOR issues.

branches: 1.14.2;
arm_cpu_max = num of cpus

branches: 1.13.2; 1.13.4;
Add core locator to mainbus. Add support for attaching multiple CPUs

Use new armv7 CP15 register to print out cache types.
If the cpu_cc_freq is set, report it.
Add macros to make inlines for reading/writing co-processor registers.

branches: 1.11.2; 1.11.10;
struct device * -> device_t, struct cfdata * -> cfdata_t
CFATTACH_DECL(*, sizeof(struct device), -> CFATTACH_DECL_NEW(&, 0

branches: 1.10.4; 1.10.6; 1.10.10;
Change about 4500 of the K&R function definitions to ANSI ones.
There are still about 1600 left, but they have ',' or /* ... */
in the actual variable definitions - which my awk script doesn't handle.
There are also many that need () -> (void).
(The script does handle misordered arguments.)

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

branches: 1.8.80; 1.8.88; 1.8.94; 1.8.98;
merge ktrace-lwp.

__KERNEL_RCSID()

branches: 1.6.8;
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.

branches: 1.3.8;
Make some of the arm32 files build with LOOSE_PROTOTYPES not set in the makefile. Turned up a few mismatched functions. Note that this isn't all of the arm32 files. Aim will be to get arm32 kernels built with LOOSE_PROTOTYPES not set.

Use <arm/undefined.h> instead of <machine/undefined.h>.

branches: 1.1.2; 1.1.4; 1.1.6; 1.1.12;
Split cpu from mainbus so that cpu can attached to other buses (like ofbus).

Remove unnecessary sys/malloc.h include

Merge thorpej-cfargs2.

branches: 1.22.8;
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: 1.21.42;
Cleanup a few MULTIPROCESSOR issues.

branches: 1.20.2; 1.20.12;
Add core locator to mainbus. Add support for attaching multiple CPUs

Add intrbase locator to mainbus.

branches: 1.18.2; 1.18.10;
#include <sys/bus.h> instead of <machine/bus.h>.

struct device * -> device_t, struct cfdata * -> cfdata_t
CFATTACH_DECL(*, sizeof(struct device), -> CFATTACH_DECL_NEW(&, 0

branches: 1.16.4; 1.16.6; 1.16.10;
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: 1.14.8; 1.14.14; 1.14.18;
Merge kernel changes in matt-armv6 to HEAD.

branches: 1.13.46; 1.13.52; 1.13.60; 1.13.76; 1.13.78; 1.13.80;
merge ktrace-lwp.

s/locdesc_t/int/g

branches: 1.11.2;
adaptions to config_search() change, and minor autoconf fixes, mostly from Havard Eidnes

On a riscstation leave the iobase as requested, don't add IO_CONF_BASE to
it.

__KERNEL_RCSID()

branches: 1.8.2;
Use aprint*().

Use aprint_normal() for cfprint routines.

Use CFATTACH_DECL().

Declare all cfattach structures const.

Introduce a new routine, config_match(), which invokes the
cfattach->ca_match function in behalf of the caller. Use it
rather than invoking cfattach->ca_match directly.

branches: 1.3.2; 1.3.8;
That's supposed to be <machine/io.h> in the XXX'd #ifdef, not a repeat
of <machine/bus.h>.

Add common Makefile for arm ports. Only include (for now) machine/io.h
if arm32 is defined. io.h is RISCPC specific and isn't needed for other
ports.

branches: 1.1.2; 1.1.4;
Part 2 of merge.... the dissapearance of mainbus from arm32 and hpcarm;
these parts were a 100% the same and i've included the extensions made by
hpcarm in the tree.
Checked for occurence of MD parts; none found.

Add multiple inclusion protection.

Add core locator to mainbus. Add support for attaching multiple CPUs

Add intrbase locator to mainbus.

branches: 1.2.2; 1.2.10;
#include <sys/bus.h> instead of <machine/bus.h>.

branches: 1.1.4; 1.1.154;
Part 2 of merge.... the dissapearance of mainbus from arm32 and hpcarm;
these parts were a 100% the same and i've included the extensions made by
hpcarm in the tree.
Checked for occurence of MD parts; none found.

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

branches: 1.23.28;
Don't manipulate the pte to get uncached memory, use PMAP_NOCACHE instead.
Convert footbring to kenter_pa/kremove

branches: 1.22.2; 1.22.4;
Add stream methods

branches: 1.21.2; 1.21.10;
#include <sys/bus.h> instead of <machine/bus.h>.

Add a flags argument to pmap_kenter_pa(9).
Patch showed on tech-kern@ http://mail-index.netbsd.org/tech-kern/2009/11/04/msg006434.html
No objections.

ansify function definitions

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

branches: 1.17.80; 1.17.88; 1.17.94; 1.17.98;
bus_dmamem_map: honour BUS_DMA_NOWAIT. noted by Manuel Bouyer.
bus_space_map: always do NOWAIT allocation as it used to be before yamt-km.

we have too many copies!

branches: 1.16.2; 1.16.8;
merge yamt-km branch.
- don't use managed mappings/backing objects for wired memory allocations.
save some resources like pv_entry. also fix (most of) PR/27030.
- simplify kernel memory management API.
- simplify pmap bootstrap of some ports.
- some related cleanups.

branches: 1.15.8; 1.15.10;
Correct the usage of the 4th arg to mainbus_bs_map. It's a flags arg, so
test for the CACHEABLE bit, rather than assuming a non-zero means cacheable

Fix the ARM mainbus version of bus_space_subregion() to correctly shift the
base offset before using it. This makes it work the same as every other
implementation, and makes wdc at pioc on acorn32 work again. Fix the only
caller I found which depended on the old behaviour.

__KERNEL_RCSID()

branches: 1.12.8;
remove trailing \n in panic(). approved perry.

* Add PTE_SYNC() and PTE_SYNC_RANGE() macros. These don't actually do
anything yet.
* Use PTE_SYNC() and PTE_SYNC_RANGE() in some obvious places, i.e.
where vtopte() is used.

branches: 1.10.2;
* Split pte_cache_mode into pte_l1_s_cache_mode, pte_l2_l_cache_mode,
and pte_l2_s_cache_mode. The cache-meaningful bits are different
for these descriptor types on some processor models.
* Add pte_*_cache_mask, corresponding to each above, which has a mask
of the cache-meangful bits, and define those for generic and XScale
MMU classes. Note, the L2_S_CACHE_MASK_xscale definition requires
use of the Extended Small Page L2 descriptor (the "X" bit overlaps
with AP bits otherwise).

Use pte_cache_mode instead of PT_CACHEABLE.

* arm_byte_to_page() -> arm_btop()
* arm_page_to_byte() -> arm_ptob()

KERNEL_SPACE_START -> KERNEL_BASE

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

branches: 1.5.4;
Update pmap_update to now take the updated pmap as an argument.
This will allow improvements to the pmaps so that they can more easily defer expensive operations, eg tlb/cache flush, til the last possible moment.

Currently this is a no-op on most platforms, so they should see no difference.

Reviewed by Jason.

Initial commitment of the bus_space_mmap() functions as proposed by Jason R
Thorpe as an extension to the bus_space(9) API.

Only the mainbus has a working mmap... iomd, podulebus and isa dont have
one yet. Its trivial to add the iomd and isa's memory part but am a bit
hessistant to add it without knowing its implications by heart.

Podulebus might be implemented in 32 bits EASI but otherwise its not really
transparent since there is AFAIK no function to explicitly read one byte or
so .. or is this implemented in a higher level ?

ARM26 and arch/arm32/dnard (Shark) kernels compile and RiscPC and Shark
kernels are tested and function OK.

Implications of other ARM systems like hpcarm and ebarm are propably
minimal or solved trivially.

branches: 1.3.2;
A couple of tidy ups to pmap:
pmap_t -> struct pmap * in pmap.c and pmap.h
kernel_pmap -> pmap_kernel() everywhere.

Compiled and booted on riscpc and cats.

branches: 1.2.2;
Sprinkle pmap_update() calls after calls to:
- pmap_enter()
- pmap_remove()
- pmap_protect()
- pmap_kenter_pa()
- pmap_kremove()
as described in pmap(9).

These calls are relatively conservative. It may be possible to
optimize these a little more.

branches: 1.1.2; 1.1.4;
Part 2 of merge.... the dissapearance of mainbus from arm32 and hpcarm;
these parts were a 100% the same and i've included the extensions made by
hpcarm in the tree.
Checked for occurence of MD parts; none found.

Move parts of cpu.h that are not needed by MI code in <arm/locore.h>
Don't include <machine/cpu.h> or <machine/frame.h>, use <arm/locore.h>
Use <arm/asm.h> instead of <machine/arm.h>

branches: 1.1.4; 1.1.154; 1.1.170; 1.1.180; 1.1.186;
Part 2 of merge.... the dissapearance of mainbus from arm32 and hpcarm;
these parts were a 100% the same and i've included the extensions made by
hpcarm in the tree.
Checked for occurence of MD parts; none found.