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and thus should be using spltty()
from Matthew Dempsky
ok oga guenther
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ok millert@
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guenther@ for sparc, pointed out to me by miod@.
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recommit pmemrange:
physmem allocator: change the view of free memory from single
free pages to free ranges. Classify memory based on region with
associated use-counter (which is used to construct a priority
list of where to allocate memory).
Based on code from tedu@, help from many.
Useable now that bugs have been found and fixed in most architecture's
pmap.c
ok by everyone who has done a pmap or uvm commit in the last year.
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rather than defining it separately for each architecture.
Also set it to 4, to accommodate for future UTF-8 support (rfc3629).
Diff by stsp, committing to catch the libc major bump
ok kettenis@, guenther@
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ok jsing@, miod@
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Tested by myself, sthen, oga, kettenis, and jasper.
Input from sthen and jasper.
ok kettenis
(Manpage follows shortly.)
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of the bus_space_tag_t it contains; an upcoming implementation will need
to know the rbus_tag_t for which it works at this point.
All callers updated accordingly; no functional change intended.
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logic to be chipset dependent; no functional change yet.
ok kettenis@
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interfaces.
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Saves every damned driver calling bzero(), and continues the M_ZERO,
PR_ZERO symmetry.
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(virtual) machines.
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MD code would free resources that couldn't be freed until we were no
longer running in that processor. However, it's is unused on all
architectures since mikeb@'s tss changes on x86 earlier in the year.
ok miod@
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levels. This will allow for platforms where soft interrupt levels do not
map to real hardware interrupt levels to have soft ipl values overlapping
hard ipl values without breaking spl asserts.
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APM_IOC_{SUSPEND,STANDBY}_REQ: This is to fix an issue with apm suspend
where a call to zzz suspended the machine immediately, not giving anyone
listening for apm events (other than apmd) a chance to deal with the
upcoming change. This hit X hard since the introduction of drm, since it
needs to have time to idle the 3d engine and otherwise get the device
into a recoverable state. Such things are needed until we support
modesetting in the kernel.
Now, instead of forcing a suspend, using ioctl sends out an event similar
to if you had put the lid down, giving all userland applications a
chance to reply.
tested by sthen@ and beck@, especial thanks to sthen for sitting there
while I tried to debug this remotely, I owe him beer.
Prompted by and ok deraadt@
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pages. Use this to provide a real pmap_resident_count() function.
ok kettenis@
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of all windows.
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probe win over vgafb, since one may configure a kernel with vgafb but without
ifb (especially slackers who forget to rerun config).
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save ourselves an instruction and remove the pretty misleading comments.
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External Initiated Reset (XIR) to processors. A XIR is non-maskable and will
drop us at the PROM ok prompt. This makes it possible to diagnose problems
where a CPU is spinning with interrupts disabled.
For now, this is only supported on machines with bbc(4).
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and even then it didn't work. we have higher standards than this.
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day when this is useful.
mostly macro magic that does nothing. only actually useful on amd64 for now, compliments of art.
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licenses as well. Thanks!
"Groovy" deraadt
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OK kettenis@
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In short, make cpu_unidle do what signotify used to do and
make signotify use cpu_unidle.
Also, include a cpu_unidle in need_resched, it won't change much right now
but will be needed in the future.
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protected by __ISO_C_VISIBLE > 1999. With a little help from miod@.
ok miod@
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which are uniform for the profclock on each cpu in a SMP system (but using
a different seed for each cpu). on all cpus, avoid seeding with a value out
of the [0, 2^31-1] range (since that is not stable)
ok kettenis drahn
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For now, sparc64 is arbitrarily set to 256 (only architecture that didn't have
a practical limit in the code on the number of cpus).
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ok miod@
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- provide proper dtoa locks
- use the real strtof implementation
- add strtold, __hdtoa, __hldtoa
- add %a/%A support
- don't lose precision in printf, don't round to double anymore
- implement extended-precision versions of libc functions: fpclassify,
isnan, isinf, signbit, isnormal, isfinite, now that the ieee.h is
fixed
- separate vax versions of strtof, and __hdtoa
- add complex math support. added functions: cacos, casin, catan,
ccos, csin, ctan, cacosh, casinh, catanh, ccosh, csinh, ctanh, cexp,
clog, cabs, cpow, csqrt, carg, cimag, conj, cproj, creal, cacosf,
casinf, catanf, ccosf, csinf, ctanf, cacoshf, casinhf, catanhf,
ccoshf, csinhf, ctanhf, cexpf, clogf, cabsf, cpowf, csqrtf, cargf,
cimagf, conjf, cprojf, crealf
- add fdim, fmax, fmin
- add log2. (adapted implementation e_log.c. could be more acruate
& faster, but it's good enough for now)
- remove wrappers & cruft in libm, supposed to work-around mistakes
in SVID, etc.; use ieee versions. fixes issues in python 2.6 for
djm@
- make _digittoint static
- proper definitions for i386, and amd64 in ieee.h
- sh, powerpc don't really have extended-precision
- add missing definitions for mips64 (quad), m{6,8}k (96-bit) float.h
for LDBL_*
- merge lead to frac for m{6,8}k, for gdtoa to work properly
- add FRAC*BITS & EXT_TO_ARRAY32 definitions in ieee.h, for hdtoa&ldtoa
to use
- add EXT_IMPLICIT_NBIT definition, which indicates implicit
normalization bit
- add regression tests for libc: fpclassify and printf
- arith.h & gd_qnan.h definitions
- update ieee.h: hppa doesn't have quad-precision, hppa64 does
- add missing prototypes to gdtoaimp
- on 64-bit platforms make sure gdtoa doesn't use a long when it
really wants an int
- etc., what i may have forgotten...
- bump libm major, due to removed&changed symbols
- no libc bump, since this is riding on djm's libc major crank from
a day ago
discussed with / requested by / testing theo, sthen@, djm@, jsg@,
merdely@, jsing@, tedu@, brad@, jakemsr@, and others.
looks good to millert@
parts of the diff ok kettenis@
this commit does not include:
- man page changes
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ok deraadt@
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