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in master aborts. Return 0xffffffff to emulate what happens on non-perfect
architectures in that case.
ok deraadt@
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Soon to be used by pyro(4) as well.
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spinning on a contended lock.
ok kettenis@
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i386. Stop abusing it on other archs for controling a shutdown by
pressing the soft power button:
* Add a MI sysctl hw.allowpowerdown; if set to 1 (the default) it
allows a power button shutdown.
* Make acpi(4)/acpibtn(4) honor hw.allowpowerdown.
* Switch the various power button intercepts on landisk, sgi, sparc64
and zaurus over to hw.allowpowerdown.
* Garbage collect the machdep.kbdreset sysctl on all archs other than
amd64 and i386.
ok miod@
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The new world order of pmemrange makes this data completely redundant
(being dealt with by the pmemrange constraints instead). Remove all code
that messes with the freelist.
While touching every caller of uvm_page_physload() anyway, add the flags
argument to all callers (all but one is 0 and that one already used
PHYSLOAD_DEVICE) and remove the macro magic to allow callers to continue
without it.
Should shrink the code a bit, as well.
matthew@ pointed out some mistakes i'd made.
``freelist death, I like. Ok.' ariane@
`I agree with the general direction, go ahead and i'll fix any fallout
shortly'' miod@ (68k 88k and vax i could not check would build)
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Doesn't matter much since C++ ABI used by GCC doesn't mangle variable
names; however technically is required by Section 7.5 of the C++ spec.
Discussed with/OK guenther@, matthew@.
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zeroed out.
Documented this in code and updated PMAP_PREFER_* macros to use the corrected
values.
Discussed with and ok miod@
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while there fix PMAP_PREFER_OFFSET() for good too, after discussion with ariane@
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Enables future uvm_map code to make intelligent decisions during allocation.
No functional change.
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not reviewed yet, but it's better to track changes in cvs
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update the comment block accordingly.
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<machine/cpu.h> if _KERNEL is defined. The bootblocks are stupid, and
for now they need this. We need more namespace cleanup, for sure.
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Discussed and okay drahn@. Okay deraadt@.
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Okay guenther@, millert@.
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ok guenther
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a physical address [more precisely, something suitable to pass to pmap_enter()'sphysical address argument].
This allows MI drivers to implement mmap() routines without having to know
about the pmap_phys_address() implementation and #ifdef obfuscation.
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for it. This makes the netisr a real C function which will help further
development. No noticable performance change on i386 and amd64.
With input from kettenis@ and miod@ additional OKs mikeb@ and henning@
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its better as a per arch MD define anyway. all default to MAXDSIZ as before.
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vaddr_t PMAP_PREFER(..., vaddr_t). This allows better compiler optimization
when the function is inlined, and avoids accessing memory on architectures
when we can pass function arguments in registers.
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given pcitag_t configuration address space. Currently, all pci controllers
will return the usual 0x100 bytes of PCI configuration space, but this will
eventually change on PCIe-capable controlers.
ok kettenis@
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implement them, and they are of questionable usefulness.
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userland traps on a per-process basis, were necessary for *some* SunOS
binaries on sparc, which had to compiled with explicit misaligned access code
generation (i.e. for vendors to release a working SunOS/sparc version of their
code until they could fix their bogus code).
There is no reason to keep this code on sparc64, and now that we don't provide
COMPAT_SUNOS anymore, there is no reason to keep this code on sparc.
ok kettenis@
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to complete matthew@'s commit of a few days ago, and drop __HAVE_CPU_MUTEX_LEVEL
define. With help from, and ok deraadt@.
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ok art@
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ok kettenis, deraadt
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ok deraadt@, miod@
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doing thread-local storage and fix a typo in one that was already defined.
ok kettenis@ drahn@
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which contains the constraints for DMA/memory allocation for each
architecture, and dma_constraints which contains the range of addresses
that are dma accessable by the system.
This is based on ariane@'s physcontig diff, with lots of bugfixes and
additions the following additions by my self:
Introduce a new function pool_set_constraints() which sets the address
range for which we allocate pages for the pool from, this is now used
for the mbuf/mbuf cluster pools to keep them dma accessible.
The !direct archs no longer stuff pages into the kernel object in
uvm_km_getpage_pla but rather do a pmap_extract() in uvm_km_putpages.
Tested heavily by my self on i386, amd64 and sparc64. Some tests on
alpha and SGI.
"commit it" beck, art, oga, deraadt
"i like the diff" deraadt
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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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