Commit Graph

29 Commits

Author SHA1 Message Date
thorpej a279b0973b Reduce some complexity in the fault path -- Rather than maintaining
an spl-protected "interrupt safe map" list, simply require that callers
of uvm_fault() never call us in interrupt context (MD code must make
the assertion), and check for interrupt-safe maps in uvmfault_lookup()
before we lock the map.
2001-06-26 17:55:14 +00:00
chs 821ec03ed9 replace vm_map{,_entry}_t with struct vm_map{,_entry} *. 2001-06-02 18:09:08 +00:00
chs 118ddca24a replace {simple_,}lock{_data,}_t with struct {simple,}lock {,*}. 2001-05-26 16:32:40 +00:00
chs 3845302904 remove trailing whitespace. 2001-05-25 04:06:11 +00:00
chs ac3bc537bd eliminate the KERN_* error codes in favor of the traditional E* codes.
the mapping is:

KERN_SUCCESS			0
KERN_INVALID_ADDRESS		EFAULT
KERN_PROTECTION_FAILURE		EACCES
KERN_NO_SPACE			ENOMEM
KERN_INVALID_ARGUMENT		EINVAL
KERN_FAILURE			various, mostly turn into KASSERTs
KERN_RESOURCE_SHORTAGE		ENOMEM
KERN_NOT_RECEIVER		<unused>
KERN_NO_ACCESS			<unused>
KERN_PAGES_LOCKED		<unused>
2001-03-15 06:10:32 +00:00
chs 19b7b64642 clean up DIAGNOSTIC checks, use KASSERT(). 2001-02-18 21:19:08 +00:00
enami 4625dcde2e Use single const char array instead of over 200 string constant. 2000-12-13 08:06:11 +00:00
thorpej 72a24b4eae Add an align argument to uvm_map() and some callers of that
routine.  Works similarly fto pmap_prefer(), but allows callers
to specify a minimum power-of-two alignment of the region.
How we ever got along without this for so long is beyond me.
2000-09-13 15:00:15 +00:00
thorpej 1b0163bd50 Garbage-collect a constant that nothing uses. 2000-08-16 16:32:06 +00:00
sommerfeld 41c6473b10 Use ltsleep in a loop instead of simple_unlock/tsleep/goto try_again 2000-08-12 17:44:02 +00:00
mrg 6b5536f253 restore a dropped #ifdef _KERNEL 2000-06-26 17:18:40 +00:00
mrg 7665599771 <vm/vm_map.h> gets merged into <uvm/uvm_map.h> 2000-06-26 15:32:23 +00:00
simonb b2a7dc176d Remove redundant decl for uvmspace_fork() - it's in <uvm/uvm_extern.h>. 2000-03-29 04:05:47 +00:00
kleink 6e5b64c8a0 Merge parts of chs-ubc2 into the trunk:
Add a new type voff_t (defined as a synonym for off_t) to describe offsets
into uvm objects, and update the appropriate interfaces to use it, the
most visible effect being the ability to mmap() file offsets beyond
the range of a vaddr_t.

Originally by Chuck Silvers; blame me for problems caused by merging this
into non-UBC.
2000-03-26 20:54:45 +00:00
thorpej abb48c5b71 Protect prototypes, certain macros, and inlines from userland. 1999-06-21 17:25:11 +00:00
thorpej 2580d306ab Change the vm_map's "entries_pageable" member to a r/o flags member, which
has PAGEABLE and INTRSAFE flags.  PAGEABLE now really means "pageable",
not "allocate vm_map_entry's from non-static pool", so update all map
creations to reflect that.  INTRSAFE maps are maps that are used in
interrupt context (e.g. kmem_map, mb_map), and thus use the static
map entry pool (XXX as does kernel_map, for now).  This will eventually
change now these maps are locked, as well.
1999-05-26 19:16:28 +00:00
mrg f1f95c374b implement madvice() for MADV_{NORMAL,RANDOM,SEQUENTIAL}, others are not yet done. 1999-05-23 06:27:13 +00:00
thorpej f311a1c308 Make a slight modification of pmap_growkernel() -- it now returns the
end of the mappable kernel virtual address space.  Previously, it would
get called more often than necessary, because the caller only new what
was requested.

Also, export uvm_maxkaddr so that uvm_pageboot_alloc() can grow the
kernel pmap if necessary, as well.  Note that pmap_growkernel() must
now be able to handle being called before pmap_init().
1999-05-20 23:03:23 +00:00
mrg a0139bc39d remove now >1 year old pre-release message. 1999-03-25 18:48:49 +00:00
chuck 2d4c15ebc9 remove unused share map code from UVM:
- replace map checks with submap checks
 - get rid of unused 'mainonly' arg in uvm_unmap/uvm_unmap_remove, simplify
	code.   update all calls to reflect this.
 - don't worry about unmapping or changing the protection of shared share
	map mappings (is_main_map no longer used).
 - remove unused uvm_map_sharemapcopy() function from fork code.
1998-10-11 23:14:47 +00:00
thorpej d865961d77 Back out previous; I should have instrumented the benefit of this one
first.
1998-08-31 01:54:14 +00:00
thorpej 7338d4e403 Use the pool allocator and the "nointr" pool page allocator for vm_map's. 1998-08-31 01:50:08 +00:00
eeh a2dd74ed79 Merge paddr_t changes into the main branch. 1998-08-13 02:10:37 +00:00
mrg d90485202c - add defopt's for UVM, UVMHIST and PMAP_NEW.
- remove unnecessary UVMHIST_DECL's.
1998-02-10 14:08:44 +00:00
perry 021fdb646a add/cleanup multiple inclusion protection. 1998-02-10 02:34:17 +00:00
mrg 1f6b921cf7 restore rcsids 1998-02-07 11:07:38 +00:00
chs 273ac223ec prototype for uvm_map_checkprot() moved to uvm_extern.h. 1998-02-07 02:22:24 +00:00
thorpej 9eb328b495 RCS ID police. 1998-02-06 22:26:13 +00:00
mrg f2caacc717 initial import of the new virtual memory system, UVM, into -current.
UVM was written by chuck cranor <chuck@maria.wustl.edu>, with some
minor portions derived from the old Mach code.  i provided some help
getting swap and paging working, and other bug fixes/ideas.  chuck
silvers <chuq@chuq.com> also provided some other fixes.

this is the UVM kernel code portion.


this will be KNF'd shortly.  :-)
1998-02-05 06:25:08 +00:00