machine/mutex.h: Sprinkle sys/types.h, omit machine/lock.h.

Turns out machine/lock.h is not needed for __cpu_simple_lock_t, which
always comes from sys/types.h. And, really, sys/types.h (or at least
sys/stdint.h) is needed for uintN_t and uintptr_t.

fix hppa and vax builds.

machine/lock.h isn't necessary for __cpu_simple_lock_t, it's in
sys/types.h. avoids cpu_data.h vs sched.h include order issues.

move the hppa ipl_t typedef with the moved usage of it.

machine/mutex.h: Sprinkle includes so this can be used by crash(8).

XXX pullup-10

Nix trailing whitespace in files of membars, atomics, and lock stubs.

Will be touching many of these files soon for functional changes.

No functional change intended.

- In kern_mutex.c, if MUTEX_CAS() is not defined, define it in terms of
atomic_cas_ulong().
- For arm, ia64, m68k, mips, or1k, riscv, vax: don't define our own
MUTEX_CAS(), as they either use atomic_cas_ulong() or equivalent
(atomic_cas_uint() on m68k).
- For alpha and sparc64, don't define MUTEX_CAS() in terms of their own
_lock_cas(), which has its own memory barriers; the call sites in
kern_mutex.c already have the appropriate memory barrier calls. Thus,
alpha and sparc64 can use default definition.
- For sh3, don't define MUTEX_CAS() in terms of its own _lock_cas();
atomic_cas_ulong() is strong-aliased to _lock_cas(), therefore defining
our own MUTEX_CAS() is redundant.

Per thread:
https://mail-index.netbsd.org/tech-kern/2021/07/25/msg027562.html

Nix now-unused definitions of MUTEX_GIVE/MUTEX_RECEIVE.

branches: 1.14.20;
Revert previous changes, gcc configuration will be adapted instead.

Previously we used unsigned long int as __uintptr_t, but gcc prefers
__UINTPTR_TYPE__ as unsigned int, and now we use that for __uintptr_t
as well, so adapt MUTEX_CAS() accordingly.

Remove clause 3 and 4 from TNF licenses

branches: 1.11.2; 1.11.4;
Switch NetBSD/vax to the CAS model of mutexes. Fix the locking primitives
in lock_stubs.S so they actually function correctly.

branches: 1.10.10; 1.10.14;
add comments

make kmutex_t and krwlock_t smaller by killing lock id.
ok'ed by Andrew Doran.

branches: 1.8.12; 1.8.14; 1.8.18; 1.8.20;
Fix boolean inversion and missing definition.

branches: 1.7.2;
Shrink VAX kmutex from 12 bytes to 8. Fix various LOCKDEBUG/DIAGNOSTIC
problems.

branches: 1.6.2;
Fix the INSV instruction in MUTEX_ACQUIRE(). From Hans Rosenfeld.

branches: 1.5.2;
Return rv, not 1, in MUTEX_ACQUIRE (spotted by mhitch)

MUTEX_NO_SPIN_ACTIVE_P() needs to be a macro, otherwise we end up in
circular dependency hell.

branches: 1.3.2;
Add an implementation for krwlock_t. Initialize ci_mtx_count to 1 (biased).
Fix a few buglets in the kmutex_t implementation.

MUTEX_SET_WAITERS(): return zero if the mutex has become unheld.

Partially adapt the VAX port to the newlock2 changes. These are untested
but they do at least compile.

machine/mutex.h: Sprinkle sys/types.h, omit machine/lock.h.

Turns out machine/lock.h is not needed for __cpu_simple_lock_t, which
always comes from sys/types.h. And, really, sys/types.h (or at least
sys/stdint.h) is needed for uintN_t and uintptr_t.

fix hppa and vax builds.

machine/lock.h isn't necessary for __cpu_simple_lock_t, it's in
sys/types.h. avoids cpu_data.h vs sched.h include order issues.

move the hppa ipl_t typedef with the moved usage of it.

machine/mutex.h: Sprinkle includes so this can be used by crash(8).

XXX pullup-10

Nix trailing whitespace in files of membars, atomics, and lock stubs.

Will be touching many of these files soon for functional changes.

No functional change intended.

- In kern_mutex.c, if MUTEX_CAS() is not defined, define it in terms of
atomic_cas_ulong().
- For arm, ia64, m68k, mips, or1k, riscv, vax: don't define our own
MUTEX_CAS(), as they either use atomic_cas_ulong() or equivalent
(atomic_cas_uint() on m68k).
- For alpha and sparc64, don't define MUTEX_CAS() in terms of their own
_lock_cas(), which has its own memory barriers; the call sites in
kern_mutex.c already have the appropriate memory barrier calls. Thus,
alpha and sparc64 can use default definition.
- For sh3, don't define MUTEX_CAS() in terms of its own _lock_cas();
atomic_cas_ulong() is strong-aliased to _lock_cas(), therefore defining
our own MUTEX_CAS() is redundant.

Per thread:
https://mail-index.netbsd.org/tech-kern/2021/07/25/msg027562.html

Nix now-unused definitions of MUTEX_GIVE/MUTEX_RECEIVE.

branches: 1.14.20;
Revert previous changes, gcc configuration will be adapted instead.

Previously we used unsigned long int as __uintptr_t, but gcc prefers
__UINTPTR_TYPE__ as unsigned int, and now we use that for __uintptr_t
as well, so adapt MUTEX_CAS() accordingly.

Remove clause 3 and 4 from TNF licenses

branches: 1.11.2; 1.11.4;
Switch NetBSD/vax to the CAS model of mutexes. Fix the locking primitives
in lock_stubs.S so they actually function correctly.

branches: 1.10.10; 1.10.14;
add comments

make kmutex_t and krwlock_t smaller by killing lock id.
ok'ed by Andrew Doran.

branches: 1.8.12; 1.8.14; 1.8.18; 1.8.20;
Fix boolean inversion and missing definition.

branches: 1.7.2;
Shrink VAX kmutex from 12 bytes to 8. Fix various LOCKDEBUG/DIAGNOSTIC
problems.

branches: 1.6.2;
Fix the INSV instruction in MUTEX_ACQUIRE(). From Hans Rosenfeld.

branches: 1.5.2;
Return rv, not 1, in MUTEX_ACQUIRE (spotted by mhitch)

MUTEX_NO_SPIN_ACTIVE_P() needs to be a macro, otherwise we end up in
circular dependency hell.

branches: 1.3.2;
Add an implementation for krwlock_t. Initialize ci_mtx_count to 1 (biased).
Fix a few buglets in the kmutex_t implementation.

MUTEX_SET_WAITERS(): return zero if the mutex has become unheld.

Partially adapt the VAX port to the newlock2 changes. These are untested
but they do at least compile.

machine/mutex.h: Sprinkle includes so this can be used by crash(8).

XXX pullup-10

Nix trailing whitespace in files of membars, atomics, and lock stubs.

Will be touching many of these files soon for functional changes.

No functional change intended.

- In kern_mutex.c, if MUTEX_CAS() is not defined, define it in terms of
atomic_cas_ulong().
- For arm, ia64, m68k, mips, or1k, riscv, vax: don't define our own
MUTEX_CAS(), as they either use atomic_cas_ulong() or equivalent
(atomic_cas_uint() on m68k).
- For alpha and sparc64, don't define MUTEX_CAS() in terms of their own
_lock_cas(), which has its own memory barriers; the call sites in
kern_mutex.c already have the appropriate memory barrier calls. Thus,
alpha and sparc64 can use default definition.
- For sh3, don't define MUTEX_CAS() in terms of its own _lock_cas();
atomic_cas_ulong() is strong-aliased to _lock_cas(), therefore defining
our own MUTEX_CAS() is redundant.

Per thread:
https://mail-index.netbsd.org/tech-kern/2021/07/25/msg027562.html

Nix now-unused definitions of MUTEX_GIVE/MUTEX_RECEIVE.

branches: 1.14.20;
Revert previous changes, gcc configuration will be adapted instead.

Previously we used unsigned long int as __uintptr_t, but gcc prefers
__UINTPTR_TYPE__ as unsigned int, and now we use that for __uintptr_t
as well, so adapt MUTEX_CAS() accordingly.

Remove clause 3 and 4 from TNF licenses

branches: 1.11.2; 1.11.4;
Switch NetBSD/vax to the CAS model of mutexes. Fix the locking primitives
in lock_stubs.S so they actually function correctly.

branches: 1.10.10; 1.10.14;
add comments

make kmutex_t and krwlock_t smaller by killing lock id.
ok'ed by Andrew Doran.

branches: 1.8.12; 1.8.14; 1.8.18; 1.8.20;
Fix boolean inversion and missing definition.

branches: 1.7.2;
Shrink VAX kmutex from 12 bytes to 8. Fix various LOCKDEBUG/DIAGNOSTIC
problems.

branches: 1.6.2;
Fix the INSV instruction in MUTEX_ACQUIRE(). From Hans Rosenfeld.

branches: 1.5.2;
Return rv, not 1, in MUTEX_ACQUIRE (spotted by mhitch)

MUTEX_NO_SPIN_ACTIVE_P() needs to be a macro, otherwise we end up in
circular dependency hell.

branches: 1.3.2;
Add an implementation for krwlock_t. Initialize ci_mtx_count to 1 (biased).
Fix a few buglets in the kmutex_t implementation.

MUTEX_SET_WAITERS(): return zero if the mutex has become unheld.

Partially adapt the VAX port to the newlock2 changes. These are untested
but they do at least compile.

Nix trailing whitespace in files of membars, atomics, and lock stubs.

Will be touching many of these files soon for functional changes.

No functional change intended.

- In kern_mutex.c, if MUTEX_CAS() is not defined, define it in terms of
atomic_cas_ulong().
- For arm, ia64, m68k, mips, or1k, riscv, vax: don't define our own
MUTEX_CAS(), as they either use atomic_cas_ulong() or equivalent
(atomic_cas_uint() on m68k).
- For alpha and sparc64, don't define MUTEX_CAS() in terms of their own
_lock_cas(), which has its own memory barriers; the call sites in
kern_mutex.c already have the appropriate memory barrier calls. Thus,
alpha and sparc64 can use default definition.
- For sh3, don't define MUTEX_CAS() in terms of its own _lock_cas();
atomic_cas_ulong() is strong-aliased to _lock_cas(), therefore defining
our own MUTEX_CAS() is redundant.

Per thread:
https://mail-index.netbsd.org/tech-kern/2021/07/25/msg027562.html

Nix now-unused definitions of MUTEX_GIVE/MUTEX_RECEIVE.

branches: 1.14.20;
Revert previous changes, gcc configuration will be adapted instead.

Previously we used unsigned long int as __uintptr_t, but gcc prefers
__UINTPTR_TYPE__ as unsigned int, and now we use that for __uintptr_t
as well, so adapt MUTEX_CAS() accordingly.

Remove clause 3 and 4 from TNF licenses

branches: 1.11.2; 1.11.4;
Switch NetBSD/vax to the CAS model of mutexes. Fix the locking primitives
in lock_stubs.S so they actually function correctly.

branches: 1.10.10; 1.10.14;
add comments

make kmutex_t and krwlock_t smaller by killing lock id.
ok'ed by Andrew Doran.

branches: 1.8.12; 1.8.14; 1.8.18; 1.8.20;
Fix boolean inversion and missing definition.

branches: 1.7.2;
Shrink VAX kmutex from 12 bytes to 8. Fix various LOCKDEBUG/DIAGNOSTIC
problems.

branches: 1.6.2;
Fix the INSV instruction in MUTEX_ACQUIRE(). From Hans Rosenfeld.

branches: 1.5.2;
Return rv, not 1, in MUTEX_ACQUIRE (spotted by mhitch)

MUTEX_NO_SPIN_ACTIVE_P() needs to be a macro, otherwise we end up in
circular dependency hell.

branches: 1.3.2;
Add an implementation for krwlock_t. Initialize ci_mtx_count to 1 (biased).
Fix a few buglets in the kmutex_t implementation.

MUTEX_SET_WAITERS(): return zero if the mutex has become unheld.

Partially adapt the VAX port to the newlock2 changes. These are untested
but they do at least compile.

- In kern_mutex.c, if MUTEX_CAS() is not defined, define it in terms of
atomic_cas_ulong().
- For arm, ia64, m68k, mips, or1k, riscv, vax: don't define our own
MUTEX_CAS(), as they either use atomic_cas_ulong() or equivalent
(atomic_cas_uint() on m68k).
- For alpha and sparc64, don't define MUTEX_CAS() in terms of their own
_lock_cas(), which has its own memory barriers; the call sites in
kern_mutex.c already have the appropriate memory barrier calls. Thus,
alpha and sparc64 can use default definition.
- For sh3, don't define MUTEX_CAS() in terms of its own _lock_cas();
atomic_cas_ulong() is strong-aliased to _lock_cas(), therefore defining
our own MUTEX_CAS() is redundant.

Per thread:
https://mail-index.netbsd.org/tech-kern/2021/07/25/msg027562.html

Nix now-unused definitions of MUTEX_GIVE/MUTEX_RECEIVE.

branches: 1.14.20;
Revert previous changes, gcc configuration will be adapted instead.

Previously we used unsigned long int as __uintptr_t, but gcc prefers
__UINTPTR_TYPE__ as unsigned int, and now we use that for __uintptr_t
as well, so adapt MUTEX_CAS() accordingly.

Remove clause 3 and 4 from TNF licenses

branches: 1.11.2; 1.11.4;
Switch NetBSD/vax to the CAS model of mutexes. Fix the locking primitives
in lock_stubs.S so they actually function correctly.

branches: 1.10.10; 1.10.14;
add comments

make kmutex_t and krwlock_t smaller by killing lock id.
ok'ed by Andrew Doran.

branches: 1.8.12; 1.8.14; 1.8.18; 1.8.20;
Fix boolean inversion and missing definition.

branches: 1.7.2;
Shrink VAX kmutex from 12 bytes to 8. Fix various LOCKDEBUG/DIAGNOSTIC
problems.

branches: 1.6.2;
Fix the INSV instruction in MUTEX_ACQUIRE(). From Hans Rosenfeld.

branches: 1.5.2;
Return rv, not 1, in MUTEX_ACQUIRE (spotted by mhitch)

MUTEX_NO_SPIN_ACTIVE_P() needs to be a macro, otherwise we end up in
circular dependency hell.

branches: 1.3.2;
Add an implementation for krwlock_t. Initialize ci_mtx_count to 1 (biased).
Fix a few buglets in the kmutex_t implementation.

MUTEX_SET_WAITERS(): return zero if the mutex has become unheld.

Partially adapt the VAX port to the newlock2 changes. These are untested
but they do at least compile.

Nix now-unused definitions of MUTEX_GIVE/MUTEX_RECEIVE.

Revert previous changes, gcc configuration will be adapted instead.

Previously we used unsigned long int as __uintptr_t, but gcc prefers
__UINTPTR_TYPE__ as unsigned int, and now we use that for __uintptr_t
as well, so adapt MUTEX_CAS() accordingly.

Remove clause 3 and 4 from TNF licenses

branches: 1.11.2; 1.11.4;
Switch NetBSD/vax to the CAS model of mutexes. Fix the locking primitives
in lock_stubs.S so they actually function correctly.

branches: 1.10.10; 1.10.14;
add comments

make kmutex_t and krwlock_t smaller by killing lock id.
ok'ed by Andrew Doran.

branches: 1.8.12; 1.8.14; 1.8.18; 1.8.20;
Fix boolean inversion and missing definition.

branches: 1.7.2;
Shrink VAX kmutex from 12 bytes to 8. Fix various LOCKDEBUG/DIAGNOSTIC
problems.

branches: 1.6.2;
Fix the INSV instruction in MUTEX_ACQUIRE(). From Hans Rosenfeld.

branches: 1.5.2;
Return rv, not 1, in MUTEX_ACQUIRE (spotted by mhitch)

MUTEX_NO_SPIN_ACTIVE_P() needs to be a macro, otherwise we end up in
circular dependency hell.

branches: 1.3.2;
Add an implementation for krwlock_t. Initialize ci_mtx_count to 1 (biased).
Fix a few buglets in the kmutex_t implementation.

MUTEX_SET_WAITERS(): return zero if the mutex has become unheld.

Partially adapt the VAX port to the newlock2 changes. These are untested
but they do at least compile.