KNF. No functional change.

branches: 1.7.18;
MD rnd.h cleanups. Please let me know if I broke anything!

branches: 1.6.14;
C99 types

branches: 1.5.6;
Entropy-pool implementation move and cleanup.

1) Move core entropy-pool code and source/sink/sample management code
to sys/kern from sys/dev.

2) Remove use of NRND as test for presence of entropy-pool code throughout
source tree.

3) Remove use of RND_ENABLED in device drivers as microoptimization to
avoid expensive operations on disabled entropy sources; make the
rnd_add calls do this directly so all callers benefit.

4) Fix bug in recent rnd_add_data()/rnd_add_uint32() changes that might
have lead to slight entropy overestimation for some sources.

5) Add new source types for environmental sensors, power sensors, VM
system events, and skew between clocks, with a sample implementation
for each.

ok releng to go in before the branch due to the difficulty of later
pullup (widespread #ifdef removal and moved files). Tested with release
builds on amd64 and evbarm and live testing on amd64.

branches: 1.4.2; 1.4.6;
#include <sys/bus.h> instead of <machine/bus.h>.

Split device_t/softc. Tested only on cs at ofisa on shark.

branches: 1.2.78;
merge ktrace-lwp.

branches: 1.1.4;
support CS8900A ethernet on SMDK2410.

XXX: SMDK2410 has no EEPROM connected to CS8900A. Currently the only
way to set MAC address is give it via kernel config option.

remove double t from targeted, add missing r to arbitrary
And fix few more typos along the way in comments and man pages.

fix various typos in comments.

Merge thorpej-cfargs2.

branches: 1.9.8;
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: 1.8.52;
split device_t/softc for all remaining drivers.
replace "struct device *" with "device_t".
use device_xname(), device_unit(), etc.

branches: 1.7.2; 1.7.12;
#include <sys/bus.h> instead of <machine/bus.h>.

don't use dv_xname directly.

branches: 1.5.10; 1.5.30; 1.5.32;
Cleanup softint lossage.

branches: 1.4.16; 1.4.20; 1.4.26; 1.4.32;
Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

branches: 1.3.14;
Use device_parent().

branches: 1.2.4; 1.2.6; 1.2.8; 1.2.10; 1.2.12;
merge ktrace-lwp.

branches: 1.1.4; 1.1.18;
Keyboard driver for semtech SPICoder-SA06 on Samsung SMDK2410.

The board has a full keyboard. The controller is hooked to SPI port.

s/horizontaol/horizontal/ in comments.

Remove unnecessary <sys/malloc.h>.

Merge thorpej-cfargs2.

branches: 1.11.8;
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: 1.10.42;
Add d_discard to all struct cdevsw instances I could find.

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

branches: 1.9.2;
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: 1.8.2;
split device_t/softc for all remaining drivers.
replace "struct device *" with "device_t".
use device_xname(), device_unit(), etc.

branches: 1.7.6;

Add FriendlyARM Mini2440 support.
- new code for Samsung S3C2440 SoC.
- update for other S3C2xx0.
This port was done by Paul Fleischer.

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

Include locators.h for SSIOCF_ADDR_DEFAULT.

use device_lookup_private to get softc

branches: 1.3.40; 1.3.42; 1.3.44; 1.3.46; 1.3.48;
Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

branches: 1.2.26;
merge ktrace-lwp.

branches: 1.1.4; 1.1.18;
Support SMDK2410's 240x320 TFT LCD.

This can be configured with or without wsdisplay.
Only 8- and 16-bpp modes have been tested.

Fix format specifier for physmem from %d to 0x%"PRIxPSIZE" in multiple places.

Should fix VERBOSE_INIT_ARM for various evbarm kernel configs.
Also add 0x prefix in few previously fixed places to improve readability.

Provide a shared pmap_devmap implementation and convert all pmap_devmap
arrays to use DEVMAP_ENTRY{,_END}

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

PMAP_DEBUG has been deleted on arm

Trailing whitespace

branches: 1.42.6;
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.

Consistently use vaddr_t as initarm and friends return type.

Makes no difference to binaries except for aarch64 where it's required

KNF

Fix a commit

Centralise defparam CONSADDR, CONSPEED, CONMODE and CONADDR into
opt_console.h and adjust.

Sprinkle #include "opt_arm_debug.h" where VERBOSE_INIT_ARM is used

branches: 1.36.14; 1.36.16;
switch all ports to use uvm_init.c:uvm_md_init()

uvm_setpagesize() is now subsumed within this funciton.

branches: 1.35.2; 1.35.4;
Replace more vm_offset_t, vm_size_t with vaddr_t, vsize_t
Use paddr_t for msgbufphys

GC writeback_dcache_line and clear_dcache_line.

<arm/locore.h> fallout (fixes some include ordering errors)

branches: 1.32.2;
Don't use an asm in pmap_activate to update the TTBR, use cpu_setttb instead
but add a second argument to it to indicate whether the TLB/caches need to be
flushed. Default cortex to pmap_needs_fixup = 1. But check the MMFR3 field
to see if the fixed can be skipped.
Use a cf_flag bit 0 to indicate whether the A9 L2 cache should disable (bit 0 = 1)
or enabeld (bit = 0).

With these changes, the A9 MMU can use traverse caches to do MMU tablewalks
Also, make sure all memory has the shareable bit for the A9.

branches: 1.31.2;
Move the standard definitions of the {UND,IRQ,FIQ,ABT}_STACK_SIZE to
<arm32/machdep.h>
Move the extern for cpu_reset_address to the same file.
Add cpu_reset_address_paddr.
Kill cpu_reset_v4_MMU_disable.
if cpu_reset_address is NULL, then the MMU will be disabled.

Fix more -fno-common fallout.
Move more variables to common locations.

branches: 1.29.2;
#include <sys/bus.h> instead of <machine/bus.h>.

dependant -> dependent

Use cpu_* prefix to call cpu_* functions (setttb() -> cpu_setttb()); no
functional changes.

Garbage collect an unused global, vm_offset_t pagetables_start.

- Use uvm_lwp_setuarea() instead of directly setting address to lwp_t::l_addr.
- Replace most remaining uses of l_addr with uvm_lwp_getuarea() or lwp_getpcb().
- Amend assembly in ports where it accesses PCB via struct user.
- Rename L_ADDR to L_PCB in few places. Reduce sys/user.h inclusions.

Kill proc0paddr. Use lwp0.l_addr instead.

Remove all declarations of physmem from sys/arch. Add an include of
<sys/systm.h> to the one file that did not already contain it.
This now means that physmem can be changed by updating systm.h and uvm_page.c
(excluding fixing printfs)

As discussed on tech-kern: mutex_init is too heavyweight for early bootstrap
phases, so move the initialization of the ksyms mutex back into main via
a function called ksyms_init. Rename the existing (but quite different)
ksyms_init* variations into ksyms_addsyms_elf() and ksyms_addsyms_explicit()
and adapt machdep code accordingly.

fix botched LKM edits

Remove LKMs and switch to the module framework, pass 1.

Proposed on tech-kern@.

It is not appropriate to call pmf_system_shutdown(9) from
doshutdownhooks(9): shutdown hooks registered by shutdownhook_establish(9)
expect to be called with interrupts disabled, but shutdown hooks
registered with pmf_device_register1(9) expect to be called with
interrupts enabled. So I have made two changes:

1 Do not call pmf_system_shutdown() from doshutdownhooks(). Instead,
change every call to doshutdownhooks() to a call to doshutdownhooks()
followed by a call to pmf_system_shutdown(). No functional change
is intended by this change.

2 Make i386 re-enable interrupts briefly while it calls
pmf_system_shutdown(). I leave it to others either to fix the
other ports, or to factor out some MI shutdown code, as joerg@
suggests, and fix that. Note that a functional change *is* intended
by this change.

I hope that this patch will stop us from flip-flopping between
calling doshutdownhooks() and pmf_system_shutdown() sometimes with
and sometimes without interrupts enabled.

branches: 1.18.6; 1.18.8;
Merge kernel changes in matt-armv6 to HEAD.

branches: 1.17.6; 1.17.8; 1.17.10;
Remove arm support for IPKDB.

It hasn't worked since arm was broken out from arm32 in Jan 2001, and
no-one has noticed or cared to fix it.

branches: 1.16.34; 1.16.38; 1.16.44; 1.16.52;
in initarm(), initialise kernel_l1pt.pv_va as well as kernel_l1pt.pv_pa.

branches: 1.15.4; 1.15.6; 1.15.8; 1.15.12;
bare asm -> __asm

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

merge ktrace-lwp.

branches: 1.12.4;
Switch SMDK2410 and SMDK2800 kernels to use pmap_devmap_bootstrap() to map
I/O registers that are used in early start-up stage. This replaces the
special bootstrap-time-only bus_space_map function in smdk{2410,2800}_machdep.c.

This makes SMDK{2410,2800}'s initarm() a bit simpler, and gives us smaller diffs
to other evbarm platforms.

An another good thing for SMDK2800 is that now we have all built-in peripheral
registers mapped in 2 segments. We may expect less TLB miss on I/O access
(very slightly).

delete unused stuff.

branches: 1.10.2; 1.10.4;
Fix comments regarding configration bounaries

Fix comments slighly

branches: 1.8.4;
mask all interrupts during bootstrap *correctly*.

call s3c2xx0_intr_bootstrap() to initialize variables used by splfoo().

GC a bogus variable that was causing link failures with PCMCIA.

tweak memory controller on startup for CS8900A at CS3 and CL-PD7610 at
CS2.

move some definitions of register block size from s3c24[10]0reg.h
to s3c24x0reg.h when they are same for S3C2410 and 2400, and rename them as
S3C24X0_FOO_SIZE.

add s3c2xx0_bus_dma_init() which is called by s3c2410_attach().

add a variable wdcdebug_wd_mask for a temporary workaround to the link
error when umass is configured in SMDK2410 kernel. I'll re-visit this
later.

don't be too verbose unless VERBOSE_INIT_ARM is defined.

delete my private hack sneaked into previous commit.

the first cut for Samsung SMDK2410 support.
It is an evaluation board for S3C2410.

XXX: not tested much yet.
XXX: smdk2410_machdep.c and smdk2410_start.S are almost identical
to SMDK2800's. One day I'll merge them.

Add RCSID when needed.
Don't include pmap.h or pte.h, include "assym.h" instead.
Use assym.h provided values.

branches: 1.5.100; 1.5.106; 1.5.108;
merge ktrace-lwp.

branches: 1.4.4;
add option SMDK2XX0_CLOCK_CONFIG to change CPU clock at kernel startup.

fix a comment.

disable interrupts at the beginning.

the first cut for Samsung SMDK2410 support.
It is an evaluation board for S3C2410.

XXX: not tested much yet.
XXX: smdk2410_machdep.c and smdk2410_start.S are almost identical
to SMDK2800's. One day I'll merge them.

Fix format specifier for physmem from %d to 0x%"PRIxPSIZE" in multiple places.

Should fix VERBOSE_INIT_ARM for various evbarm kernel configs.
Also add 0x prefix in few previously fixed places to improve readability.

Provide a shared pmap_devmap implementation and convert all pmap_devmap
arrays to use DEVMAP_ENTRY{,_END}

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

PMAP_DEBUG has been deleted on arm

Trailing whitespace

branches: 1.47.8;
Consistently use vaddr_t as initarm and friends return type.

Makes no difference to binaries except for aarch64 where it's required

KNF

Fix a commit

Centralise defparam CONSADDR, CONSPEED, CONMODE and CONADDR into
opt_console.h and adjust.

branches: 1.43.14; 1.43.16;
switch all ports to use uvm_init.c:uvm_md_init()

uvm_setpagesize() is now subsumed within this funciton.

branches: 1.42.2; 1.42.4;
Replace more vm_offset_t, vm_size_t with vaddr_t, vsize_t
Use paddr_t for msgbufphys

<arm/locore.h> fallout (fixes some include ordering errors)

branches: 1.40.2;
Don't use an asm in pmap_activate to update the TTBR, use cpu_setttb instead
but add a second argument to it to indicate whether the TLB/caches need to be
flushed. Default cortex to pmap_needs_fixup = 1. But check the MMFR3 field
to see if the fixed can be skipped.
Use a cf_flag bit 0 to indicate whether the A9 L2 cache should disable (bit 0 = 1)
or enabeld (bit = 0).

With these changes, the A9 MMU can use traverse caches to do MMU tablewalks
Also, make sure all memory has the shareable bit for the A9.

branches: 1.39.2;
Move the standard definitions of the {UND,IRQ,FIQ,ABT}_STACK_SIZE to
<arm32/machdep.h>
Move the extern for cpu_reset_address to the same file.
Add cpu_reset_address_paddr.
Kill cpu_reset_v4_MMU_disable.
if cpu_reset_address is NULL, then the MMU will be disabled.

Fix more -fno-common fallout.
Move more variables to common locations.

branches: 1.37.2;
#include <sys/bus.h> instead of <machine/bus.h>.

dependant -> dependent

Use cpu_* prefix to call cpu_* functions (setttb() -> cpu_setttb()); no
functional changes.

Garbage collect an unused global, vm_offset_t pagetables_start.

- Use uvm_lwp_setuarea() instead of directly setting address to lwp_t::l_addr.
- Replace most remaining uses of l_addr with uvm_lwp_getuarea() or lwp_getpcb().
- Amend assembly in ports where it accesses PCB via struct user.
- Rename L_ADDR to L_PCB in few places. Reduce sys/user.h inclusions.

Kill proc0paddr. Use lwp0.l_addr instead.

Remove all declarations of physmem from sys/arch. Add an include of
<sys/systm.h> to the one file that did not already contain it.
This now means that physmem can be changed by updating systm.h and uvm_page.c
(excluding fixing printfs)

As discussed on tech-kern: mutex_init is too heavyweight for early bootstrap
phases, so move the initialization of the ksyms mutex back into main via
a function called ksyms_init. Rename the existing (but quite different)
ksyms_init* variations into ksyms_addsyms_elf() and ksyms_addsyms_explicit()
and adapt machdep code accordingly.

fix botched LKM edits

Remove LKMs and switch to the module framework, pass 1.

Proposed on tech-kern@.

It is not appropriate to call pmf_system_shutdown(9) from
doshutdownhooks(9): shutdown hooks registered by shutdownhook_establish(9)
expect to be called with interrupts disabled, but shutdown hooks
registered with pmf_device_register1(9) expect to be called with
interrupts enabled. So I have made two changes:

1 Do not call pmf_system_shutdown() from doshutdownhooks(). Instead,
change every call to doshutdownhooks() to a call to doshutdownhooks()
followed by a call to pmf_system_shutdown(). No functional change
is intended by this change.

2 Make i386 re-enable interrupts briefly while it calls
pmf_system_shutdown(). I leave it to others either to fix the
other ports, or to factor out some MI shutdown code, as joerg@
suggests, and fix that. Note that a functional change *is* intended
by this change.

I hope that this patch will stop us from flip-flopping between
calling doshutdownhooks() and pmf_system_shutdown() sometimes with
and sometimes without interrupts enabled.

branches: 1.26.6; 1.26.8;
Merge kernel changes in matt-armv6 to HEAD.

branches: 1.25.6; 1.25.8; 1.25.10;
Remove arm support for IPKDB.

It hasn't worked since arm was broken out from arm32 in Jan 2001, and
no-one has noticed or cared to fix it.

branches: 1.24.34; 1.24.38; 1.24.44; 1.24.52;
in initarm(), initialise kernel_l1pt.pv_va as well as kernel_l1pt.pv_pa.

branches: 1.23.4; 1.23.6; 1.23.8; 1.23.12;
bare asm -> __asm

merge ktrace-lwp.

branches: 1.21.4;
Switch SMDK2410 and SMDK2800 kernels to use pmap_devmap_bootstrap() to map
I/O registers that are used in early start-up stage. This replaces the
special bootstrap-time-only bus_space_map function in smdk{2410,2800}_machdep.c.

This makes SMDK{2410,2800}'s initarm() a bit simpler, and gives us smaller diffs
to other evbarm platforms.

An another good thing for SMDK2800 is that now we have all built-in peripheral
registers mapped in 2 segments. We may expect less TLB miss on I/O access
(very slightly).

move a few definitions to smdk2800var.h to share them between smdk2800_machdep.c and smdk2800_start.S

branches: 1.19.2; 1.19.4;
Fix comments regarding configration bounaries

Fix comments slighly

Uppercase CPU, plural is CPUs.

an arg of s3c2800_clk_freq() has been changed to match with
s3c24x0_clk_freq().

__KERNEL_RCSID()

branches: 1.14.2;
Garbage-collect some unused code.

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

Move KERNEL_VM_SIZE into the C files where its used.

Move KERNEL_VM_BASE inside where it is used (it won't be there for long).

Decrease the verbosity level unless VERBOSE_INIT_ARM is defiend.

+ use system's real PCLK frequency for source clock of sscom's
baudrate, instead of a compile time constant.

+ simplify bootstrap_bs_map() by mapping all built-in peripheral
registers at start.

+ check SW3 and SW7 and toggle RB_SINGLE and RB_KDB in boothowto if
pressed.

white space nit.

Don't expose KERNEL_TEXT_BASE outside of board-specific code. This gives
individual board start-up code more flexibility about where the kernel
starts in the kernel address space.

Reduce differences between ARM32_NEW_VM_LAYOUT and not; always pass
the start and end of the kernel managed virtual address space to
pmap_bootstrap() in the new pmap.

Remove old pmap support for platforms which have fully switched over.

Switch Integrator, IXM1200, and SMDK2800 to ARM32_PMAP_NEW. These
are the last of the ARM platforms to be converted.

Call ksyms_init() instead of ddb_init() in case of
NKSYMS || defined(DDB) || defined(LKM)

Use PAGE_SIZE rather than NBPG.

branches: 1.1.2;
SMDK2800 is an evaluation board for Samsung S3C2800 CPU.

<sys/extent.h> not needed here.

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

merge ktrace-lwp.

make this compile again. (arm32_bus_dma_tag._cookie)

__KERNEL_RCSID()

branches: 1.1.2; 1.1.8;
SMDK2800 is an evaluation board for Samsung S3C2800 CPU.

Add RCSID when needed.
Don't include pmap.h or pte.h, include "assym.h" instead.
Use assym.h provided values.

branches: 1.7.100; 1.7.106; 1.7.108;
merge ktrace-lwp.

Switch SMDK2410 and SMDK2800 kernels to use pmap_devmap_bootstrap() to map
I/O registers that are used in early start-up stage. This replaces the
special bootstrap-time-only bus_space_map function in smdk{2410,2800}_machdep.c.

This makes SMDK{2410,2800}'s initarm() a bit simpler, and gives us smaller diffs
to other evbarm platforms.

An another good thing for SMDK2800 is that now we have all built-in peripheral
registers mapped in 2 segments. We may expect less TLB miss on I/O access
(very slightly).

move a few definitions to smdk2800var.h to share them between smdk2800_machdep.c and smdk2800_start.S

branches: 1.4.2; 1.4.10; 1.4.12;
use PMAP_DOMAIN_KERNEL and DOMAIN_CLIENT instead of magic numbers.

enable the domain 15 during bootstrap, as new pmap_map_section() use it.

Build our own page table which is used during bootstrap, instead of
reusing the table prepared by the monitor program on ROM.

This will allow the kernel booted by gzboot at reset vector.

branches: 1.1.2;
SMDK2800 is an evaluation board for Samsung S3C2800 CPU.

branches: 1.2.4; 1.2.6; 1.2.8;
Switch SMDK2410 and SMDK2800 kernels to use pmap_devmap_bootstrap() to map
I/O registers that are used in early start-up stage. This replaces the
special bootstrap-time-only bus_space_map function in smdk{2410,2800}_machdep.c.

This makes SMDK{2410,2800}'s initarm() a bit simpler, and gives us smaller diffs
to other evbarm platforms.

An another good thing for SMDK2800 is that now we have all built-in peripheral
registers mapped in 2 segments. We may expect less TLB miss on I/O access
(very slightly).

move a few definitions to smdk2800var.h to share them between smdk2800_machdep.c and smdk2800_start.S