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Currently as no-ops everywhere.
ok art@, deraadt@
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type characteristics.
internal_types.h will contain only settings invisible from standard C, e.g.,
in the __* or _[A-Z]* namespace, and be reused by files like limits.h.
This allows us to shorten machine/limits.h greatly, as all the common defines
are now in sys/limits.h, plus a small stub in internal_types.h.
Tested on all arches as far as I know.
Approved after discussion with art, millert, deraadt, and others.
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from the preferred.
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Fix bug where altivec context was not freed on process exit.
Fix bug where vscr was not correctly saved/restored.
replace asm statement was macros which expand to the same
asm code or to .long XXX which evaluates to the same instruction
since in-tree gas does not support altivec.
Enable ALTIVEC support by default on macppc, still conditional
for other powerpc ports.
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the spill list for each PTEG, the V->P translations are stored in
trees for each pmap. All valid kernel mappings are preallocated
in 1-1 memory so that tlb spill/loads for kernel accesses can be
looked up while physical, user mappings are not guaranteed to
be 1-1 mapped, thus the kernel must go virtual to look up user
mappings. While this is more expensive, the tree search is much
lower cost than the long linked list search. Also on each pmap_remove()
it was necessary to search the linked lists for each possible mapping,
now it just looks up the entry in the tree.
This change gives a 25-36% speedup in 'make build' time. What was
around 2:50 is now around 1:55 on a 733MHz G4.
This change causes a likely existing bug to appear quite often,
it deals with the segment register invalidation in kernel mode.
Because of that problem, currently this change limits the physical
memory used to 256MB. This limitation will be fixed soon, it is not
an error in the pmap code.
* Effort sponsored in part by the Defense Advanced Research Projects
* Agency (DARPA) and Air Force Research Laboratory, Air Force
* Materiel Command, USAF, under agreement number F30602-01-2-0537.
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support for __warn_references (both from alpha/sparc4).
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protection was not good enough. work from theo, pefo, toby.
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in ptrace.h, not in md header files.
Protect vector functions/variables with _KERNEL.
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date: 2000/02/11 19:22:52; author: thorpej;
Add some very simple code to auto-size the kmem_map. We take the
amount of physical memory, divide it by 4, and then allow machine
dependent code to place upper and lower bounds on the size. Export
the computed value to userspace via the new "vm.nkmempages" sysctl.
NKMEMCLUSTERS is now deprecated and will generate an error if you
attempt to use it. The new option, should you choose to use it,
is called NKMEMPAGES, and two new options NKMEMPAGES_MIN and
NKMEMPAGES_MAX allow the user to configure the bounds in the kernel
config file.
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pmap_update API (right now it's nop).
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functions. Seems to have no effect on system run time (it should have...)
reduces GENERIC kernel size by 52k.
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the 'as' in openbsd source tree does not yet support altivec instructions.
The pieces to enable it have been put in macppc/conf/GENERIC and
macppc/conf/Makefile.macppc in comments.
Once 'as' is updated the kernel option should be removed.
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(although they are leftovers from an earlier bad time, the macppc
decided that it's a good idea to use them.)
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Changes to the pmap_enter code so that the pmap_kenter/pmap_kremove
has a method to create mappings without adding them to the _pv lists
(part of the point of pmap_k* functions). Also adds an interface
so that device mappings can be created with cacheable attributes.
So that devices such as display memory can be mapped writethru
greatly increasing their speed.
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eventually; drahn@ ok
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is being renamed to macppc. This is to allow sharing of common code
between different powerpc base platforms.
Most of the work involved in the renaming process was performed by miod@
Files moved from powerpc/include to macppc/include
Some files were not "moved" but wrapper files were created which include
the powerpc/include version.
Several of the powerpc/include files where changed to reflect that they
are POWERPC_* not MACHINE_*.
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> vm/vm_prot.h no more
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int bus_dmamem_mmap(bus_dma_tag_t, bus_dma_segment_t, int, int, int, int);
to:
paddr_t bus_dmamem_mmap(bus_dma_tag_t, bus_dma_segment_t, int, int, off_t, int);
To allow mmaping offsets larger than INT_MAX. And to simply make more sense.
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The archs that didn't have a proper PMAP_NEW now have a dummy implementation
with wrappers around the old functions.
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this function cannot be prototyped.
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not in each file.
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Code cleanup for pmap headers.
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definition as splimp().
art@ ok
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