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there to trap.c which is its only user. This also cleans up multiple
inclusion of <machine/cpu.h> (because <machine/psl.h> includes it) in many
places.
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necessary, to allow the same C code to be used against 32 bit ARCBios, when
compiled in 32 bit mode, or against 64 bit ARCBios, when compiled in native
mode.
Soon to be used by the boot blocks; this commit doesn't introduce any
functional change yet.
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the next scheduled clock interrupt; the comparison would before always be
true, causing the clock to really run at hz/2.
While there, remove unused nanodelay() and attempt to clean clock
initialization a bit.
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differently at times.
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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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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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anything special to prod a cpu to leave the idle loop in signotify.
powerpc, i386, amd64 and sparc64 will follow soon so that everyone has
the same interface to wake an idling cpu.
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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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address space. The space between PAGE_SIZE and the non-pie fixed link
address creates no mmap pressure so use that space for PIE. However on
hppa the non-pie fixed link address is PAGE_SIZE so just use a small range
for PIE to minimize mmap pressure.
okay miod@
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- math.h shouldn't define FLT_EVAL_METHOD, but float.h should (per
C99). remove from math.h, and add proper definitions in float.h
ok millert@
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Right now when mi_switch picks up the same proc, we didn't clear the
flag which would mean that every time we service an AST we would attempt
a context switch. For some architectures, amd64 being probably the
most extreme, that meant attempting to context switch for every
trap and interrupt.
Now we clear_resched explicitly after every context switch, even if it
didn't do anything. Which also allows us to remove some more code
in cpu_switchto (not done yet).
miod@ ok
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tested by maja@
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available memory regions will be reported to be in VM_FREELIST_DEFAULT.
Add a few quirks to cope with (some) IP27 and IP30 weirdness.
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code soon. Similar to what ddb does, but does not need ddb to be compiled in.
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Define a symbolic ``cached'' attribute, to be used for cached mappings
regardless of the system's cache coherency.
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segments and the number of freelists.
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as the Octane; joint work with jsing@
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when machdep.kbdreset is set, and the correct interrupt is fired,
the machine gets shut down.
with help from and ok jsing@, ok miod@
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it later on.
ok miod@
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pmap.h now includes pte.h.
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the holes a MMU may have from a given vm_map. This will be automagically
invoked for newly created vmspaces.
On platforms with MMU holes (e.g. sun4, sun4c and vax), this prevents
mmap(2) hints which would end up being in the hole to be accepted as valid,
causing unexpected signals when the process tries to access the hole
(since pmap can not fill the hole anyway).
Unfortunately, the logic mmap() uses to pick a valid address for anonymous
mappings needs work, as it will only try to find an address higher than the
hint, which causes all mmap() with a hint in the hole to fail on vax. This
will be improved later.
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space, either cache coherent for regular mappings and uncached for
BUS_DMA_COHERENT mappings, as done on all other platforms with direct mappings.
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bytes, no functional change.
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cpu_disklabel's. 'labelsector' is not used anywhere according to grep.
'go for it' deraadt@
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to support hotplug media on most architectures. disklabel setup and
verification done using new helper functions. Disklabels must *always*
have a correct checksum now. Same code paths are used to learn on-disk
location disklabels, to avoid new errors sneaking in. Tested on almost all
cases, testing help from todd, kettenis, krw, otto, dlg, robert, gwk, drahn
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*_LABELOFFSET. Don't use osdep->labelsector since it will always be
LABELSECTOR, since we don't support extended DOS partitions holding
the OpenBSD disk label.
No functional change. Now only Alpha and Vax bounds_check_with_label
differ by more than comments.
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mbuf constants from MD param.h to MI param.h.
Besides being the same on every arch, things will
most probly break if any arch has different values
then the others.
The NMBCLUSTERS constants needs to be MD though;
ok miod@,krw@,claudio@
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have cpu_info now, so kill the option.
eyeballed by jsg@ and grange@
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ok miod
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ok miod@
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XKPHYS instead of KSEG[01] for direct mappings.
Then, detect memory above 256MB on O2 by poking at the CRIME registers
(ARCbios will not report memory above 256MB, which is mapped above 1GB
physical, to the system), and add it to the UVM managed memory.
Tested on r5k, rm5200 and r10k with and without more than 256MB, matching
hinv reports in all cases. CRIME memory decoding based on a diff from
kettenis@ in december 2005.
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unconditionnaly.
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high 32 bits of addresses.
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- use wm_page pg_flags pmap-reserved flags to store attributes, instead of
defining a vm_page_md field.
- use atomic operations to touch the above mentioned flags.
- never create ptes with PG_RO and PG_M set (this was harmless anyway).
- in pmap_clear_modify(), do not flush cache if the page was mapped uncached.
Tested on r5k, rm5200, r10k and r12k.
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to the moment we reboot, for we do not know what it can do behind our back;
this means the built-in ethernet address has to be read from the arcbios
environment earlier.
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