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204 Commits

Author SHA1 Message Date
thorpej 5303f3b378 Clean up the cpp macro used to say "we're compiling this specific C file". 2005-06-28 05:25:42 +00:00
thorpej fcd6584a58 Clean up the use of __inline in this file. In particular, don't inline 
really big chunks of code.  This saves almost 2.5K on a GENERIC i386
kernel, and has the added benefit of not polluting the I$ so much.
 2005-06-28 01:07:56 +00:00
jmc 1786cf4f46 Change signature of uvm_kmapent_map defintiion to __INLINE to match prototype 2005-06-13 20:39:14 +00:00
dsl d68ddde829 If we are builging a small kernel [1], don't inline all these functions. 
Saves over 2k and lets i386 rescue_tiny build again.
[1] if MALLOC_NOINLINE is defined - not ideal but...
 2005-06-10 22:00:52 +00:00
matt 25a0e29a75 When writing coredumps, don't write zero uninstantiated demand-zero pages. 
Also, with ELF core dumps, trim trailing zeroes from sections.  These two
changes can shrink coredumps by over 50% in size.
 2005-06-02 17:01:43 +00:00
christos e715d2ee98 avoid shadow variables. 
remove unneeded casts.
 2005-05-29 21:06:33 +00:00
yamt faf63ba09b uvm_kmapent_free: add missing vm_map_lock/unlock. 2005-05-22 21:37:56 +00:00
yamt ea66ccc0a5 uvm_mapent_trymerge: adjust object offset when necessary. 2005-05-18 01:36:16 +00:00
yamt 9dcbe8b85f redo the previous (uvm_map.c rev.1.195) correctly. 2005-05-18 01:34:53 +00:00
yamt 1d028221a3 uvm_mapent_trymerge: add missing checks. 2005-05-17 21:45:24 +00:00
yamt 50a25acc50 (try to) merge map entries in fault handler. 2005-05-17 13:55:33 +00:00
yamt 1e5d4510fa revert uvm_map.c rev.1.190 in favor of merging in fault handler. 2005-05-17 13:54:19 +00:00
yamt 662ada8f7a allocate anons on-demand, rather than reserving static amount of 
them on boot/swapon.
 2005-05-11 13:02:25 +00:00
yamt ae24d5d705 - amap_extend: don't extend amap beyond UVM_AMAP_LARGE. 
- uvm_map_enter: if we fail to extend amap, just give up merging instead of
  bailing out immediately.
 2005-05-05 01:58:51 +00:00
yamt 9aacd16106 uvm_map_enter: don't bother to defer amap allocation if there's a mergable 
existing entry.  although there're merits and demerits, i think it benefits
common cases.
 2005-04-29 09:05:21 +00:00
yamt 1e67869b4b uvm_map: don't leak a preallocated map entry on error. 2005-04-28 14:40:43 +00:00
dbj 2939014883 use voff_t instead of vaddr_t to hold file offset passed to pgo_put 2005-04-07 06:44:15 +00:00
yamt 6b2d8b66a4 merge yamt-km branch. 
- don't use managed mappings/backing objects for wired memory allocations.
  save some resources like pv_entry.  also fix (most of) PR/27030.
- simplify kernel memory management API.
- simplify pmap bootstrap of some ports.
- some related cleanups.
 2005-04-01 11:59:21 +00:00
chs 6e3fb7b0d2 add back rev. 1.29 of vm/vm_map.c, which was apparently lost in the UVM merge: 
msync(MS_INVALIDATE) should fail if any part of the region is wired.
 2005-02-28 16:55:54 +00:00
perry bcfcddbac1 nuke trailing whitespace 2005-02-26 22:31:44 +00:00
chs 467487d274 use vm_map_{min,max}() instead of dereferencing the vm_map pointer directly. 
define and use vm_map_set{min,max}() for modifying these values.
remove the {min,max}_offset aliases for these vm_map fields to be more
namespace-friendly.  PR 26475.
 2005-02-11 02:12:03 +00:00
chs b0c54c738d pmap_wired_count() is now available on all platforms, 
remove the code for the case where it's not defined.
 2005-01-23 15:58:13 +00:00
atatat a076957818 Convert the PMAP_PREFER() macro from two arguments (offset and hint) 
to four (adding size and direction).

In order for topdown uvm to be an option on ports using PMAP_PREFER,
they will need to "prefer" lower addresses if topdown is being used.
Additionally, at least one port also needs to know the size.
 2005-01-17 04:37:20 +00:00
yamt 3068e2f45a don't use uvm_kmapent_alloc for non-intrsafe kernel submaps 
(namely exec_map and phys_map) becuase:
- normal vmmpepl is fine for them.
- some of them are tightly sized.  eg. size of exec_map on vax is just NCARGS.

should fix vax boot failure reported by Johnny Billquist on current-users@.
 2005-01-14 14:25:40 +00:00
yamt 22099ab744 in uvm_unmap_remove, always wakeup va waiters if any. 
uvm_km_free_wakeup is now a synonym of uvm_km_free.
 2005-01-13 11:50:32 +00:00
yamt e4666bf785 don't reserve (uvm_mapent_reserve) entries for malloc/pool backends 
because it isn't necessary or safe.
reported and tested by Denis Lagno.  PR/28897.
 2005-01-12 09:34:35 +00:00
yamt 546bb99833 reapply uvm_map.c rev.1.156 (use a zero-sized array instead of 
c99 flexible array member) for ports which still use gcc 2.95.
from Havard Eidnes.
 2005-01-03 19:46:22 +00:00
yamt 3983ffcfb1 uvm_unmap_remove: debug check to ensure that 
unmapped regions doesn't have any remaining page mappings.
 2005-01-01 21:12:59 +00:00
yamt 592c954dc7 don't merge incompatible map entries. eg. private and shared. 2005-01-01 21:11:51 +00:00
yamt 95c82bfee4 introduce vm_map_kernel, a subclass of vm_map, and 
move some kernel-only members of vm_map to it.
 2005-01-01 21:02:12 +00:00
yamt 1207308b90 for in-kernel maps, 
- allocate kva for vm_map_entry from the map itsself and
  remove the static limit, MAX_KMAPENT.
- keep merged entries for later splitting to fix allocate-to-free problem.
  PR/24039.
 2005-01-01 21:00:06 +00:00
yamt 49fe2034a3 uvm_map_printit: 
- print wired_count if available.
- fix a printf format.
 2004-09-25 04:19:38 +00:00
he df7ebfa9c3 Move variable declaration up before the code. Fixes compile error 
for vax, and also conforms better to KNF.
 2004-05-19 22:02:05 +00:00
pk 2fb3dac280 Since a `vmspace' always includes a `vm_map' we can re-use vm_map's 
reference count lock to also protect the vmspace's reference count.
 2004-05-04 21:33:40 +00:00
petrov 1ac4411c10 Revert default uvm counters, rename UVMMAP_COUNTERS to UVMMAP_NOCOUNTERS. 2004-05-03 20:10:35 +00:00
petrov 5f4709f782 Replace uvm counters with evcnt, initialize them through __link_set (from Matt Thomas), 
disable counters by default and add configuration option UVMMAP_COUNTERS.
 2004-05-01 19:40:39 +00:00
junyoung 9262158d3e Fix typo in comments. 2004-04-27 09:50:43 +00:00
junyoung f539f210cc FINDSPACE_FIXED -> UVM_FLAG_FIXED in comment. 2004-04-27 09:45:02 +00:00
simonb b5d0e6bf06 Initialise (most) pools from a link set instead of explicit calls 
to pool_init.  Untouched pools are ones that either in arch-specific
code, or aren't initialiased during initial system startup.

 Convert struct session, ucred and lockf to pools.
 2004-04-25 16:42:40 +00:00
yamt dabac1bc03 uvm_map_findspace: don't return unaligned address if alignment is specified. 
discussed on tech-kern@.
 2004-03-30 12:59:09 +00:00
junyoung 7e0c058612 Drop trailing spaces. 2004-03-24 07:47:32 +00:00
mycroft 2fef5d8dfc Something I posted to tech-kern a long time ago... 
Slightly simplify uvm_map_extract() slightly by eliminating "oldstart".
 2004-03-17 23:58:12 +00:00
pooka c5e500a486 Reflect dropping mappings in map_size. 
Avoids panic on DIAGNOSTIC kernels.

ok by chs
 2004-03-11 15:03:47 +00:00
matt a78a1b0777 Back out the changes in 
http://mail-index.netbsd.org/source-changes/2004/01/29/0027.html
since they don't really fix the problem.

Incorpate one fix:  Mark uvm_map_entry's that were created with
UVM_FLAG_NOMERGE so that they will not be used as future merge
candidates.
 2004-02-10 01:30:49 +00:00
yamt 1e18e59746 - borrow vmspace0 in uvm_proc_exit instead of uvmspace_free. 
the latter is not a appropriate place to do so and it broke vfork.
- deactivate pmap before calling cpu_exit() to keep a balance of
  pmap_activate/deactivate.
 2004-02-09 13:11:21 +00:00
yamt 8fb96e0be4 introduce a new patchable variable, uvm_debug_check_rbtree, 
which is zero by default.
perform rbtree sanity checks only when it isn't zero
because the check is very heavy weight especially when
there're many entries.
 2004-02-07 13:22:19 +00:00
yamt a45adbd9c7 don't deactivate pmap in exit1 because we'll touch the pmap later. 
instead, borrow vmspace0 immediately before destroying the pmap
in uvmspace_free.
 2004-02-07 10:05:52 +00:00
yamt 4124096ea8 uvm_kmapent_alloc: 
in the case that there's no cached entries,
if kmem_map is already up, allocate a entry from it
so that we won't try to vm_map_lock recursively.
XXX assuming usage pattern of kmem_map.
 2004-02-07 08:02:21 +00:00
he be19fc25f3 Since the playstation2 port still uses a variant of gcc 2.95.2, 
change to use a zero-sized array instead of c99 flexible array
member in a struct.

OK'ed by yamt.
 2004-02-02 23:13:44 +00:00
yamt c5ffc97d8e remove wrong assertions. 
sparc's alloc_cpuinfo_global_va() partially unmaps kva range in kernel_map.

noted by Juergen Hannken-Illjes on current-users@.
 2004-01-30 11:56:39 +00:00