| History log of /src/sys/arch/sparc/include/psl.h |
| Revision | | Date | Author | Comments |
| 1.53 |
| 07-Apr-2024 |
rillig | sparc: fix typos and omissions in PSTATE_BITS and ECC_AFR_BITS
Fixes PR 57869.
|
| 1.52 |
| 11-Jul-2023 |
martin | fix editor mishap in previous
|
| 1.51 |
| 11-Jul-2023 |
martin | Make ipl_cookie_t visible for _KMEMUSER userland applications.
|
| 1.50 |
| 02-Nov-2021 |
ryo | branches: 1.50.4;
In order to prevent _mcount() from being recursively called when built with COPTS=-O0,
sprinkle `__always_inline' to make _mcount() be generated as a single function.
|
| 1.49 |
| 18-May-2016 |
nakayama | Fix (unused) pstate mask bits in tstate and comment.
|
| 1.48 |
| 28-Aug-2011 |
mrg | branches: 1.48.12; 1.48.30;
apply some always_inline attribute to setpsr and spl*. while i am
not yet sure exactly why this is necessary, but does avoid crashes
seen on sparc INSTALL with gcc 4.5.
|
| 1.47 |
| 16-Jul-2011 |
nakayama | Bring some fixes and minor differences from sparc64 version.
|
| 1.46 |
| 15-Jul-2011 |
riz | BLOCK_SIZE->SPARC64_BLOCK_SIZE
BLOCK_ALIGN->SPARC64_BLOCK_ALIGN
XXX these values are unused in sparc; this is merely to keep the sparc
and sparc64 versions of psl.h in sync, and to allow sparc to build again.
|
| 1.45 |
| 16-May-2009 |
martin | Add memory clobbers to the inline assembler modifying/testing the %psr
register, to avoid the compiler reordering instructions out of critical
sections. Should fix PR port-sparc/41372.
|
| 1.44 |
| 19-Feb-2007 |
mrg | branches: 1.44.46; 1.44.56; 1.44.62;
remove a redundant variable from spl0().
|
| 1.43 |
| 16-Feb-2007 |
ad | branches: 1.43.2;
Remove spllowersoftclock() and CLKF_BASEPRI(), and always dispatch callouts
via a soft interrupt. In the near future, softclock will be run from process
context.
|
| 1.42 |
| 26-Dec-2006 |
ad | Define ipl_t as uint8_t so that it can be packed into a word with a lock
byte. Ok yamt@.
|
| 1.41 |
| 21-Dec-2006 |
yamt | merge yamt-splraiseipl branch.
- finish implementing splraiseipl (and makeiplcookie).
http://mail-index.NetBSD.org/tech-kern/2006/07/01/0000.html
- complete workqueue(9) and fix its ipl problem, which is reported
to cause audio skipping.
- fix netbt (at least compilation problems) for some ports.
- fix PR/33218.
|
| 1.40 |
| 04-May-2006 |
yamt | branches: 1.40.8; 1.40.10; 1.40.12; 1.40.18;
implement splraiseipl() for sparc.
reviewed by Martin Husemann.
while i'm here, use macros for some MD constants (eg. IPL_ZS)
as suggested by Havard Eidnes.
|
| 1.39 |
| 16-Feb-2006 |
perry | branches: 1.39.2; 1.39.4; 1.39.6;
Change "inline" back to "__inline" in .h files -- C99 is still too
new, and some apps compile things in C89 mode. C89 keywords stay.
As per core@.
|
| 1.38 |
| 24-Dec-2005 |
perry | branches: 1.38.2; 1.38.4; 1.38.6;
Remove leading __ from __(const|inline|signed|volatile) -- it is obsolete.
|
| 1.37 |
| 11-Dec-2005 |
christos | merge ktrace-lwp.
|
| 1.36 |
| 19-Jun-2005 |
thorpej | branches: 1.36.2;
Remove some unused definitions.
|
| 1.35 |
| 19-Jun-2005 |
thorpej | - Do away with the old _SPLRAISE() template macro. Instead, provide an
splraise() inline function, and define the various spl routines in terms
of splraise().
- Use ANSI function decls.
|
| 1.34 |
| 07-Aug-2003 |
agc | Move UCB-licensed code from 4-clause to 3-clause licence.
Patches provided by Joel Baker in PR 22364, verified by myself.
|
| 1.33 |
| 16-Jun-2003 |
thorpej | branches: 1.33.2;
Rename IPL_IMP -> IPL_VM.
|
| 1.32 |
| 14-Jan-2003 |
pk | Define spllowerschedclock().
To be used in the same spirit as spllowersoftclock().
|
| 1.31 |
| 31-Dec-2002 |
pk | Define IPL_SCHED at level 11 and make splsched() use it.
|
| 1.30 |
| 06-Dec-2002 |
pk | Start using IPL_* constants from intr.h; phase out PIL_* in psl.h
|
| 1.29 |
| 08-Jun-2001 |
uwe | branches: 1.29.8; 1.29.12;
Oops, missed in the previous commit: bump PIL_SER to 13 as well.
It seems to be unused...
|
| 1.28 |
| 06-Jun-2001 |
uwe | Bump splserial to 13 to support com port on Tadpole and JavaStations.
While I'm here - remove redefinition of PIL_TTY, move splnet
definition to keep the list sorted and sync its comment with reality.
|
| 1.27 |
| 23-Apr-2001 |
pk | Bump PIL_NET to 7; some sbus network boards use this interrupt level.
Nuke PIL_IMP.
|
| 1.26 |
| 13-Apr-2001 |
thorpej | Remove the use of splimp() from the NetBSD kernel. splnet()
and only splnet() is allowed for the protection of data structures
used by network devices.
|
| 1.25 |
| 22-Mar-2001 |
mrg | sync with sparc64.
|
| 1.24 |
| 14-Jan-2001 |
thorpej | branches: 1.24.2;
Make sure everybody has an splvm() and equate it with splimp() (splimp()
is the historical name for this interrupt level, and the historical name
is going to go away in the near future).
|
| 1.23 |
| 22-Aug-2000 |
thorpej | Add spllock(). See spl(9) for details.
|
| 1.22 |
| 21-Aug-2000 |
thorpej | Make sure we provide splsched() as described in spl(9).
|
| 1.21 |
| 09-Jun-2000 |
pk | spl0() and spllowersoftclock() return void.
|
| 1.20 |
| 21-Jan-2000 |
pk | branches: 1.20.2;
Move several PIL_* definitions into the scope of LOCORE stuff.
|
| 1.19 |
| 15-Dec-1999 |
garbled | Add new spl level for tadpole devices splts102.
Device entrypoints for tctrl device (tadpole micro controller)
add header for direct-access ioctl to the tadpole microcontroller.
|
| 1.18 |
| 05-Aug-1999 |
thorpej | branches: 1.18.2; 1.18.8;
Change spl calls to always raise priority, except for the ones which are
specifically supposed to lower it.
|
| 1.17 |
| 05-Aug-1999 |
thorpej | 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.
|
| 1.16 |
| 26-Nov-1998 |
pk | Add splserial().
|
| 1.15 |
| 06-Feb-1998 |
mrg | backout previous change.
|
| 1.14 |
| 06-Feb-1998 |
mrg | put PIL_CLOCK and splclock together, like the rest..
|
| 1.13 |
| 19-Nov-1997 |
pk | splpmap() is again equivalent to splimp().
|
| 1.12 |
| 10-Mar-1997 |
pk | branches: 1.12.8;
Add getmid
|
| 1.11 |
| 31-Mar-1996 |
pk | branches: 1.11.8;
Add a non-interrupt-priority-lowering version of SPL(). Used by splpmap()
at the moment.
|
| 1.10 |
| 09-Feb-1996 |
christos | A few prototype fixes
|
| 1.9 |
| 03-Feb-1996 |
pk | Move splbio to level 5.
|
| 1.8 |
| 01-Feb-1996 |
mycroft | LOCORE -> _LOCORE
|
| 1.7 |
| 13-Aug-1995 |
mycroft | Replace splnet() with splsoftnet(). Add splnet().
|
| 1.6 |
| 28-Mar-1995 |
jtc | KERNEL -> _KERNEL
|
| 1.5 |
| 23-Feb-1995 |
pk | floppy levels.
|
| 1.4 |
| 20-Nov-1994 |
deraadt | copyright/Id cleanup
|
| 1.3 |
| 22-Mar-1994 |
deraadt | splimp >= (splnet or spltty)
|
| 1.2 |
| 11-Oct-1993 |
deraadt | stdarg.h, varargs.h, psl.h, autoconf.h: posted patches from torek
cpu.h: cpu_adjstack() won't work well in the NetBSD execve - need a
different model, stub enablertclock() for now..
exec.h: a netbsd-type exec.h file (ie. empty)
param.h: add MID_MACHINE
pmap.h: delete kernel_pmap hack - it doesn't work for us, + two proto's
vmparam.h: VM_MIN_ADDRESS = 0!
|
| 1.1 |
| 02-Oct-1993 |
deraadt | Chris Torek's sparc port. Missing lots of things.
|
| 1.11.8.1 |
| 12-Mar-1997 |
is | Merge in changes from The Trunk
|
| 1.12.8.1 |
| 20-Nov-1997 |
mellon | Pull rev 1.13 up from trunk (pk)
|
| 1.18.8.1 |
| 27-Dec-1999 |
wrstuden | Pull up to last week's -current.
|
| 1.18.2.4 |
| 21-Apr-2001 |
bouyer | Sync with HEAD
|
| 1.18.2.3 |
| 27-Mar-2001 |
bouyer | Sync with HEAD.
|
| 1.18.2.2 |
| 18-Jan-2001 |
bouyer | Sync with head (for UBC+NFS fixes, mostly).
|
| 1.18.2.1 |
| 20-Nov-2000 |
bouyer | Update thorpej_scsipi to -current as of a month ago
A i386 GENERIC kernel compiles without the siop, ahc and bha drivers
(will be updated later). i386 IDE/ATAPI and ncr work, as well as
sparc/esp_sbus. alpha should work as well (untested yet).
siop, ahc and bha will be updated once I've updated the branch to current
-current, as well as machine-dependant code.
|
| 1.20.2.1 |
| 22-Jun-2000 |
minoura | Sync w/ netbsd-1-5-base.
|
| 1.24.2.2 |
| 21-Jun-2001 |
nathanw | Catch up to -current.
|
| 1.24.2.1 |
| 09-Apr-2001 |
nathanw | Catch up with -current.
|
| 1.29.12.1 |
| 18-Mar-2002 |
thorpej | Add splraiseipl() for use by kern_mutex.c
|
| 1.29.8.4 |
| 15-Jan-2003 |
thorpej | Sync with HEAD.
|
| 1.29.8.3 |
| 03-Jan-2003 |
thorpej | Sync with HEAD.
XXX ALT_SWITCH_CODE is not yet LWP'ified.
|
| 1.29.8.2 |
| 11-Dec-2002 |
thorpej | Sync with HEAD.
|
| 1.29.8.1 |
| 08-Jun-2001 |
thorpej | file psl.h was added on branch nathanw_sa on 2002-12-11 06:12:08 +0000
|
| 1.33.2.4 |
| 10-Nov-2005 |
skrll | Sync with HEAD. Here we go again...
|
| 1.33.2.3 |
| 21-Sep-2004 |
skrll | Fix the sync with head I botched.
|
| 1.33.2.2 |
| 18-Sep-2004 |
skrll | Sync with HEAD.
|
| 1.33.2.1 |
| 03-Aug-2004 |
skrll | Sync with HEAD
|
| 1.36.2.3 |
| 26-Feb-2007 |
yamt | sync with head.
|
| 1.36.2.2 |
| 30-Dec-2006 |
yamt | sync with head.
|
| 1.36.2.1 |
| 21-Jun-2006 |
yamt | sync with head.
|
| 1.38.6.2 |
| 01-Jun-2006 |
kardel | Sync with head.
|
| 1.38.6.1 |
| 22-Apr-2006 |
simonb | Sync with head.
|
| 1.38.4.1 |
| 09-Sep-2006 |
rpaulo | sync with head
|
| 1.38.2.1 |
| 18-Feb-2006 |
yamt | sync with head.
|
| 1.39.6.1 |
| 24-May-2006 |
tron | Merge 2006-05-24 NetBSD-current into the "peter-altq" branch.
|
| 1.39.4.1 |
| 11-May-2006 |
elad | sync with head
|
| 1.39.2.1 |
| 24-May-2006 |
yamt | sync with head.
|
| 1.40.18.1 |
| 18-May-2009 |
bouyer | Pull up following revision(s) (requested by martin in ticket #1317):
sys/arch/sparc/include/psl.h: revision 1.45
Add memory clobbers to the inline assembler modifying/testing the %psr
register, to avoid the compiler reordering instructions out of critical
sections. Should fix PR port-sparc/41372.
|
| 1.40.12.1 |
| 18-May-2009 |
bouyer | Pull up following revision(s) (requested by martin in ticket #1317):
sys/arch/sparc/include/psl.h: revision 1.45
Add memory clobbers to the inline assembler modifying/testing the %psr
register, to avoid the compiler reordering instructions out of critical
sections. Should fix PR port-sparc/41372.
|
| 1.40.10.1 |
| 19-Sep-2006 |
yamt | implement new api for sparc.
|
| 1.40.8.1 |
| 12-Jan-2007 |
ad | Sync with head.
|
| 1.43.2.1 |
| 27-Feb-2007 |
yamt | - sync with head.
- move sched_changepri back to kern_synch.c as it doesn't know PPQ anymore.
|
| 1.44.62.1 |
| 18-May-2009 |
bouyer | branches: 1.44.62.1.2;
Pull up following revision(s) (requested by martin in ticket #764):
sys/arch/sparc/include/psl.h: revision 1.45
Add memory clobbers to the inline assembler modifying/testing the %psr
register, to avoid the compiler reordering instructions out of critical
sections. Should fix PR port-sparc/41372.
|
| 1.44.62.1.2.1 |
| 21-Apr-2010 |
matt | sync to netbsd-5
|
| 1.44.56.1 |
| 18-May-2009 |
bouyer | Pull up following revision(s) (requested by martin in ticket #764):
sys/arch/sparc/include/psl.h: revision 1.45
Add memory clobbers to the inline assembler modifying/testing the %psr
register, to avoid the compiler reordering instructions out of critical
sections. Should fix PR port-sparc/41372.
|
| 1.44.46.1 |
| 20-Jun-2009 |
yamt | sync with head
|
| 1.48.30.1 |
| 29-May-2016 |
skrll | Sync with HEAD
|
| 1.48.12.1 |
| 03-Dec-2017 |
jdolecek | update from HEAD
|
| 1.50.4.1 |
| 09-Aug-2023 |
martin | Pull up following revision(s) (requested by maya in ticket #316):
sys/arch/m68k/include/mutex.h: revision 1.13
sys/arch/arm/include/cpu.h: revision 1.125
sys/arch/sun68k/include/intr.h: revision 1.21
sys/arch/arm/include/mutex.h: revision 1.28
sys/sys/rwlock.h: revision 1.18
sys/arch/powerpc/include/mutex.h: revision 1.7
sys/arch/arm/include/mutex.h: revision 1.29
sys/arch/powerpc/include/mutex.h: revision 1.8
sys/uvm/uvm_param.h: revision 1.42
sys/sys/ksem.h: revision 1.16
sys/arch/x86/include/mutex.h: revision 1.10
sys/sys/proc.h: revision 1.372
sys/sys/ksem.h: revision 1.17
sys/arch/ia64/include/mutex.h: revision 1.8
sys/arch/evbarm/include/intr.h: revision 1.29
sys/sys/lua.h: revision 1.9
sys/arch/next68k/include/intr.h: revision 1.23
sys/arch/ia64/include/mutex.h: revision 1.9
sys/arch/hp300/include/intr.h: revision 1.35
sys/arch/hp300/include/intr.h: revision 1.36
sys/arch/sparc/include/cpu.h: revision 1.111
sys/arch/hppa/include/mutex.h: revision 1.16
sys/arch/vax/include/intr.h: revision 1.31
sys/arch/hppa/include/mutex.h: revision 1.17
sys/arch/news68k/include/intr.h: revision 1.28
sys/arch/hppa/include/mutex.h: revision 1.18
sys/arch/hppa/include/intr.h: revision 1.3
sys/arch/hppa/include/mutex.h: revision 1.19
sys/arch/hppa/include/intr.h: revision 1.4
sys/sys/sched.h: revision 1.92
sys/opencrypto/cryptodev.h: revision 1.51
sys/arch/vax/include/mutex.h: revision 1.20
sys/arch/sparc64/include/mutex.h: revision 1.10
sys/arch/ia64/include/sapicvar.h: revision 1.2
sys/arch/riscv/include/mutex.h: revision 1.5
sys/arch/amiga/dev/grfabs_cc.c: revision 1.39
sys/external/bsd/drm2/include/linux/idr.h: revision 1.11
sys/arch/riscv/include/mutex.h: revision 1.6
sys/ddb/files.ddb: revision 1.16
sys/arch/mac68k/include/intr.h: revision 1.32
share/man/man4/ddb.4: revision 1.203
sys/ddb/db_command.c: revision 1.183
sys/arch/mips/include/mutex.h: revision 1.10
sys/ddb/db_command.c: revision 1.184
sys/arch/x68k/include/intr.h: revision 1.22
sys/arch/sparc/include/psl.h: revision 1.51
sys/arch/or1k/include/mutex.h: revision 1.4
sys/arch/mips/include/mutex.h: revision 1.11
sys/arch/arm/xscale/pxa2x0_intr.h: revision 1.16
sys/arch/sparc64/include/cpu.h: revision 1.134
sys/arch/sparc/include/psl.h: revision 1.52
sys/arch/or1k/include/mutex.h: revision 1.5
sys/arch/mvme68k/include/intr.h: revision 1.22
sys/arch/luna68k/include/intr.h: revision 1.16
external/cddl/osnet/sys/sys/kcondvar.h: revision 1.6
sys/arch/sparc/include/mutex.h: revision 1.12
sys/arch/sparc/include/mutex.h: revision 1.13
sys/arch/usermode/include/mutex.h: revision 1.5
sys/arch/usermode/include/mutex.h: revision 1.6
sys/kern/kern_core.c: revision 1.38
usr.sbin/crash/Makefile: revision 1.49
sys/arch/amiga/include/intr.h: revision 1.23
sys/arch/alpha/include/mutex.h: revision 1.12
sys/arch/alpha/include/mutex.h: revision 1.13
sys/arch/evbarm/lubbock/sacc_obio.c: revision 1.16
sys/ddb/ddb.h: revision 1.6
sys/arch/sparc64/include/mutex.h: revision 1.8
sys/arch/sh3/include/mutex.h: revision 1.12
sys/arch/evbarm/lubbock/sacc_obio.c: revision 1.17
sys/ddb/db_syncobj.c: revision 1.1
sys/arch/vax/include/mutex.h: revision 1.18
sys/arch/sparc64/include/psl.h: revision 1.63
sys/arch/sparc64/include/mutex.h: revision 1.9
sys/arch/sh3/include/mutex.h: revision 1.13
sys/arch/evbarm/lubbock/obio.c: revision 1.13
sys/arch/atari/include/intr.h: revision 1.23
sys/ddb/db_syncobj.c: revision 1.2
sys/arch/vax/include/mutex.h: revision 1.19
sys/arch/evbarm/g42xxeb/obio.c: revision 1.14
sys/arch/evbarm/g42xxeb/obio.c: revision 1.15
sys/arch/cesfic/include/intr.h: revision 1.14
sys/ddb/db_syncobj.h: revision 1.1
sys/arch/x86/include/cpu.h: revision 1.134
sys/arch/evbarm/g42xxeb/obio.c: revision 1.16
sys/arch/cesfic/include/intr.h: revision 1.15
sys/arch/arm/xscale/pxa2x0_intr.c: revision 1.26
sys/sys/cpu_data.h: revision 1.54
sys/arch/m68k/include/mutex.h: revision 1.12
sys/arch/ia64/acpi/madt.c: revision 1.6
sys/rwlock.h: Make this more self-contained for bool.
machine/mutex.h: Sprinkle includes so this can be used by crash(8).
ddb: New `show all tstiles' command.
Shows who's waiting for which locks and what the owner is up to.
Include psl.h for ipl_cookie_t if __MUTEX_PRIVATE
sys: Rip <sys/resourcevar.h> out of <uvm/uvm_param.h>.
And thus out of <sys/param.h>, which is exceedingly overused and
fragile and delenda est.
Should fix (some) issues with the recent inclusion of machine/lock.h
in various machine/mutex.h files.
arm/mutex.h: Need machine/intr.h, machine/lock.h.
For ipl_cookie_t and __cpu_simple_lock_t.
evbarm/intr.h: Define ipl_cookie_t before including ARM_INTR_IMPL.
Otherwise arm/mutex.h doesn't work, due to a cyclic dependency which
should really be fixed.
opencrypto/cryptodev.h: Fix includes.
- Move sys/condvar.h under #ifdef _KERNEL.
- Add some other necessary includes and forward declarations.
- Sort.
hp300/intr.h: Fix missing includes.
linux/idr.h: Need <sys/mutex.h> for kmutex_t.
amiga/intr.h: Don't define spl*() functions if !_KERNEL.
This is used by crash(8) now, and what's important is ipl_cookie_t.
cesfic/intr.h: Expose ipl_cookie_t to userland for crash(8).
cesfic/intr.h: Expose ipl_cookie_t to userland only with _KMEMUSER.
Probably not necessary but let's be a little more cautious about
this.
atari/intr.h: Expose ipl_cookie_t with _KMEMUSER for crash(8).
arm/cpu.h: Need sys/param.h for COHERENCY_UNIT.
Nix machine/param.h -- not meant to be used directly, pulled in by
sys/param.h.
Move the definition of ipl_cookie_t out of the kernel-only sections,
some _KMEMUSER applications need it.
ddb: Cast pointer to uintptr_t first before db_expr_t.
hppa/intr.h: Expose ipl_cookie_t to _KMEMUSER for crash(8).
luna68k/intr.h: Expose ipl_cookie_t to _KMEMUSER for crash(8).
mvme68k/intr.h: Expose ipl_cookie_t to _KMEMUSER for crash(8).
news68k/intr.h: Fix includes. Put some definitions under _KERNEL.
next68k/intr.h: Expose ipl_cookie_t to _KMEMUSER for crash(8).
sys/ksem.h: Hack around fstat(8) abuse of _KERNEL.
sun68k/intr.h: Expose ipl_cookie_t to _KMEMUSER for crash(8).
vax/intr.h: Expose ipl_cookie_t to _KMEMUSER for crash(8).
x68k/intr.h: Put functions under _KERNEL so crash(8) can use this.
Make ipl_cookie_t visible for _KMEMUSER userland applications.
fix editor mishap in previous
Explicitly include <sys/mutex.h> for kmutex_t.
Replace kmutex_t * (which may be undefined here) with struct kmutex *,
suggested by Taylor.
hp300/intr.h: Put most of this under #ifdef _KERNEL.
Only ipl_cookie_t really needs to be exposed now, for crash(8).
mac68k/intr.h: Expose ipl_cookie_t to _KMEMUSER for crash(8).
Make inclusion of sys/intr.h explicit for spl*.
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 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.
ddb: Cast pointer to uintptr_t, then to db_expr_t.
Avoids warnings about conversion between pointer and integer of
different size on some architectures.
re-fix hppa builds.
this file uses __cpu_simple_lock(), not just the underlying type,
so it does need machine/lock.h.
Break cycle by using `struct kmutex *' instead of `kmutex_t *'.
sys/sched.h included sys/mutex.h
which includes sys/intr.h
which includes machine/intr.h
which on cats includes arm/footbridge/footbridge_intr.h
which includes arm/cpu.h
which includes sys/cpu_data.h
which includes sys/sched.h
But there was never any real need for sys/mutex.h in sys/sched.h,
because it only uses pointers to the opaque struct kmutex. Cycle
broken by using `struct kmutex *' instead of pulling in sys/mutex.h
for the definition of kmutex_t.
Side effect: This revealed that sys/cpu_data.h needed sys/intr.h
(which was pulled in accidentally by sys/mutex.h via sys/sched.h) for
SOFTINT_COUNT. Also revealed some other machine/cpu.h header files
were missing includes of sys/mutex.h for kmutex_t.
ia64: Need sys/types.h for u_int, vaddr_t; sys/mutex.h for kmutex_t.
explicitly include no longer implicitly included sys/mutex.h.
arm/xscale: Use sys/bitops.h fls32 - 1 instead of 31 - __builtin_clz.
Sidesteps namespace collision with `#define bits ...' in net/zlib.c.
complete the previous - there were two calls to find_first_bit() to fix.
arm/xscale: Missed a spot with previous find_first_bit commit.
evbarm/g42xxeb: Fix off-by-one in previous.
The original find_first_bit(x) was 31 - __builtin_clz((uint32_t)x),
which is equivalent to fls32(x) - 1, not to fls32(x).
Note that fls32 is 1-based and returns 0 for x=0.
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