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1465 Commits

Author SHA1 Message Date
tsutsui
2d7fb158b6 No need to pass UVM_FLAG_COLORMATCH to uvm_pagealloc() 
if no valid vaddr is specified.
 2011-05-21 11:49:34 +00:00
yamt
3b8a580f96 g/c unused function prototypes 2011-05-19 09:57:20 +00:00
rmind
4b0ec60601 ubc_release: use voff_t for offsets, rather than int. Constify. 
Reviewed by matt@.
 2011-05-19 03:44:19 +00:00
mrg
a852848eef fix the ordering and make UVMHIST enable KERNHIST automatically. 2011-05-17 05:32:31 +00:00
mrg
8169e46991 move and rename the uvm history code out of uvm_stat to "kernhist". 
rename "UVMHIST" option to enable the uvm histories.

TODO:
- make UVMHIST properly depend upon KERNHIST
- enable dynamic registration of histories.  this is mostly just
  allocating something in a bitmap, and is only for viewing multiple
  histories in a merged form.


tested on amd64 and sparc64.
 2011-05-17 04:18:05 +00:00
rmind
fe41737f5c Remove public uvm_swap_stats() routine, keep it internal. 2011-04-27 00:35:52 +00:00
rmind
520d1ecfd3 Initialize UVM loaning subsystem a bit later, after kmem(9). 
Makes UVMHIST work again.
 2011-04-24 03:56:50 +00:00
rmind
c22a36981f Replace "malloc" in comments, remove unnecessary header inclusions. 2011-04-23 18:14:12 +00:00
yamt
500e2272be - ensure that the promoted page is on the queue even when later pmap_enter 
failed.
- don't activate a page twice.
- remove an argument which is used only for an assertion.
- assertions and comments.
 2011-04-08 10:42:51 +00:00
yamt
09f62f3554 comment 2011-04-08 10:36:58 +00:00
rmind
5940ea9676 uvm_pageidlezero: use try-lock to not occupy uvm_fpageqlock, which may 
be on demand by other CPUs.  Reduces lock contention in some workloads
on many CPU (8+) systems.

Tested by tls@.
 2011-04-01 00:47:11 +00:00
drochner
f376d5576a make this build w/o HAVE_CPU_UAREA_ROUTINES 2011-02-18 10:43:52 +00:00
matt
4f38307d62 Add support for cpu-specific uarea allocation routines. Allows different 
allocation for user and system lwps.  MIPS will use this to map uareas of
system lwp used direct-mapped addresses (to reduce the overhead of
switching to kernel threads).  ibm4xx could use to map uareas via direct
mapped addresses and avoid the problem of having the kernel stack not in
the TLB.
 2011-02-17 19:27:13 +00:00
jmcneill
50ba38fe0a need uvm_pmap.h for pmap_mmap_flags definition 2011-02-12 14:45:31 +00:00
jmcneill
ee6551845f add optional MD pmap_mmap_flags macro for passing flags between cdev_mmap 
and pmap_enter, ok matt@
 2011-02-11 23:05:55 +00:00
rmind
cdc76ff97e Replace uvm_aobj_cache with kmem(9). 2011-02-11 00:21:18 +00:00
skrll
b5b02ca20c Spell uvm_fault_lower_neighbor correctly in UVMHIST_FUNC by using 
__func__
 2011-02-10 21:05:52 +00:00
pooka
22c822c7f3 Make vmapbuf() return success/error and make physio deal with a 
failure.
 2011-02-10 14:46:44 +00:00
yamt
c6c7ed993c pageobj: remove a wrong assertion. 2011-02-05 13:33:47 +00:00
chuck
afca0358a6 udpate license clauses on my code to match the new-style BSD licenses. 
verified with Mike Hibler it is ok to remove clause 3 on utah copyright,
as per UCB.
based on diff that rmind@ sent me.

no functional change with this commit.
 2011-02-02 20:07:25 +00:00
chuck
beb929a933 udpate license clauses on my code to match the new-style BSD licenses. 
based on diff that rmind@ sent me.

no functional change with this commit.
 2011-02-02 17:53:41 +00:00
chuck
f9d8cc1a37 udpate license clauses on chuck^2 code to match the new-style BSD licenses. 
based on diff that rmind@ sent me (and confirmed with chs@ via email).

no functional change with this commit.
 2011-02-02 15:28:38 +00:00
chuck
40ec801a13 udpate license clauses on my code to match the new-style BSD licenses. 
based on second diff that rmind@ sent me.

no functional change with this commit.
 2011-02-02 15:25:27 +00:00
chuck
3ba477b154 udpate license clauses on my code to match the new-style BSD licenses. 
based on diff that rmind@ sent me.

no functional change with this commit.
 2011-02-02 15:13:33 +00:00
enami
40713a94c3 Introducing inner loop prevent us from exiting from the original loop. 2011-01-26 08:49:48 +00:00
matt
d32b258b78 When starting the second pass, don't continue the for loop but instead 
just test try exceeding limit.
 2011-01-25 17:22:43 +00:00
enami
7f4cb8b53c Remove nop code; the code is moved to uao_dropswap_range1() when it is 
introduced in rev. 1.75.
 2011-01-25 03:34:29 +00:00
matt
cb4ebd8be4 Use the (new) KDASSERTMSG 2011-01-24 22:54:01 +00:00
matt
12708a66ee Fix start_hint in "simple" alloc (fencepost error). 
When restarting the loop, make sure end is not above current limit.
Do a quick test to see if the physseg is within the range of desired addresses.
 2011-01-24 19:13:55 +00:00
he
e9075e068f DEBUG does not imply DIAGNOSTIC; make sure we have a non-null 
KASSERTMSG implementation (DIAGNOSTIC) so that the variable inside
the DEBUG section gets used.
 2011-01-23 21:29:52 +00:00
matt
5f98725eda Fix the corruption of ps->start_hint. 2011-01-22 01:36:27 +00:00
matt
651bde3939 Cleanup/add some asserts. no functional change. 2011-01-21 19:27:09 +00:00
cegger
c6a6ce3477 buildfix: use PRIxPADDR for type paddr_t 2011-01-21 16:56:38 +00:00
matt
37726e8583 Improve the efficiency of searching for a contiguous set of free pages. 2011-01-18 21:43:29 +00:00
rmind
7146b2f61d Retire struct user, remove sys/user.h inclusions. Note sys/user.h header 
as obsolete.  Remove USER_TO_UAREA/UAREA_TO_USER macros.

Various #include fixes and review by matt@.
 2011-01-14 02:06:22 +00:00
enami
eaefa873fe Fix bugs introduced by previous commit; allocated page needs to be bound 
with the anon, and uvmfault_anonget may be called with ufi NULL.
 2011-01-06 05:51:57 +00:00
enami
7b2a66bec9 Fix format string; use PRIu64 for uint64_t. 2011-01-05 21:20:44 +00:00
matt
4d8e8a7e36 Add better color matching selecting free pages. KM pages will now allocated 
so that VA and PA have the same color.  On a page fault, choose a physical
page that has the same color as the virtual address.

When allocating kernel memory pages, allow the MD to specify a preferred
VM_FREELIST from which to choose pages.  For machines with large amounts
of memory (> 4GB), all kernel memory to come from <4GB to reduce the amount
of bounce buffering needed with 32bit DMA devices.
 2011-01-04 08:26:33 +00:00
matt
5d3db402fb Add a MD hook to indicate a change of vmspace due to exec. (This is useful 
to update any cpu flag due to a change to/from a 64bit and a 32bit address
space).  This can set the state needed for copyout/copyin before setregs
is invoked.
 2011-01-04 08:21:18 +00:00
matt
b3322481fa Print the number of page colors in use with db> show uvm 2011-01-04 08:17:01 +00:00
matt
6a66466f0c Move counting of faults, traps, intrs, soft[intr]s, syscalls, and nswtch 
from uvmexp to per-cpu cpu_data and move them to 64bits.  Remove unneeded
includes of <uvm/uvm_extern.h> and/or <uvm/uvm.h>.
 2010-12-20 00:25:23 +00:00
yamt
473b1715a5 cosmetics. no functional changes. 
- constify
- wrap long lines
- assertions
- comments
 2010-12-17 22:00:43 +00:00
pooka
fe0a6aa142 Remove duplicate asserts from when uvm_fault_lower1() was merged 
into uvm_fault_lower() (the duplicates were there already before,
just in different functions).

reported by Alexander Nasonov on tech-kern
 2010-12-15 13:44:17 +00:00
matt
9898b7c4fd When panicing due a non-power of 2 pagesize, include the pagesize in the 
panic message.
 2010-12-11 22:34:03 +00:00
uebayasi
565a3d3094 Make UVM_PAGE_TRKOWN a real flag. 2010-12-09 01:48:05 +00:00
hannken
bd8f6f0b8f Always take the object lock before changing vmpage flags. Fixes a deadlock 
where a thread is waiting on "genput" but the page in question is neither
BUSY nor WANTED.

No objections from tech-kern@.
 2010-11-30 10:55:25 +00:00
mrg
05061c6ad9 put the kernel-only externs back before <machine/pmap.h>. fixes ofppc build. 2010-11-29 09:49:33 +00:00
christos
a9bdee4f4d don't leak kernel variables to userland! 2010-11-26 18:51:19 +00:00
uebayasi
f4ae5ecf6e Put back VM_PAGE_TO_MD(); pointed out by skrll@, thanks. 2010-11-26 00:45:27 +00:00
uebayasi
e3b768e416 Revert vm_physseg allocation changes. A report says that it causes 
panics when used with mplayer in heavy load.
 2010-11-25 04:45:30 +00:00