3ebbe095e0
Change the pmap_extract() interface to:
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boolean_t pmap_extract(pmap_t, vaddr_t, paddr_t *);
This makes it possible for the pmap to map physical address 0.
1999-07-08 18:05:21 +00:00
0288ffb53a
pmap_change_wiring() -> pmap_unwire().
1999-06-17 19:23:20 +00:00
f5a527bb4e
Remove pmap_pageable(); no pmap implements it, and it is not really useful,
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because pmap_enter()/pmap_change_wiring() (soon to be pmap_unwire())
communicate the information in greater detail.
1999-06-17 18:21:21 +00:00
f6422020e5
Add opt_ddb.h
1999-04-08 05:07:35 +00:00
9c6b797796
Changes for modified pmap_enter() API:
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* Map the message buffer with access_type = VM_PROT_READ|VM_PROT_WRITE `just
because'.
* Map the file system buffers with access_type = VM_PROT_READ|VM_PROT_WRITE to
avoid possible problems with pagemove().
* Do not use VM_PROT_EXEC with either of the above.
* Map pages for /dev/mem with access_type = prot. Also, DO NOT use
pmap_kenter() for this, as we DO NOT want to lose modification information.
* Map pages in dumpsys() with VM_PROT_READ.
* Map pages in m68k mappedcopyin()/mappedcopyout() and writeback() with
access_type = prot.
* For now, bus_dma*(), pmap_map(), vmapbuf(), and similar functions still use
access_type = 0. This should probably be revisited.
1999-03-26 23:41:25 +00:00
d2397ac5f7
completely remove Mach VM support. all that is left is the all the
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header files as UVM still uses (most of) these.
1999-03-24 05:50:49 +00:00
d04273bac7
sun3 part of fix for PR 6152
1999-02-26 22:03:28 +00:00
90ddaed9b5
MNN is no longer optional, remove dead code
1999-01-16 20:43:21 +00:00
e7810fa812
Fix MACHINE_NEW_NONCONTIG support (UVM works now:)
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thanks to Izumi Tsutsui <tsutsui@ceres.dti.ne.jp>
Closes PR#6540
1998-12-12 05:25:01 +00:00
d47ea67c1f
Define one page free list, and put all pages on it.
1998-07-08 04:43:18 +00:00
1b01ec0993
First cut at UVM support. Compiles, but not tested yet.
1998-06-09 20:47:17 +00:00
c714d95b83
First cut at MACHINE_NEW_NONCONTIG - not enabled yet.
1998-06-09 20:31:28 +00:00
6626878e7b
It is no longer necessary for pmap_pinit() and pmap_release() to be
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pmap interface functions, as NetBSD no longer uses statically allocated
pmaps (except for the kernel pmap, which is special-cased anyhow).
1998-05-19 19:00:11 +00:00
a1efa84a4d
Modified the comments for the recentlty implemented pmap_map() function.
1998-02-09 19:56:37 +00:00
e387ffba22
Add pmap_map
1998-02-08 04:57:58 +00:00
eff2e270bd
Merge arch/sun3x into arch/sun3
1998-02-05 04:56:24 +00:00
cc1b4e4724
In pmap_bootstrap_copyprom, copy only the last PTE from the PROM's
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DVMA segment (for the page reserved by the PROM). If we copy all
the mappings, pmap_enter_kernel may complain about finding valid
PTEs that are not recorded in our PV lists. Make pmap_remove_pte
do something reasonable if it finds a PTE for a managed page that
has not been recorded in the PV lists. (Plus other minor stuff).
1998-01-22 22:00:25 +00:00
58126a3b29
Separate pmap_activate() from _pmap_switch(), so the latter can remain
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equivalent to what locore.s:cpu_switch does with in-line assembly when
PMAP_DEBUG is not defined. Also do splimp/splx in pmap_activate.
1998-01-22 21:48:42 +00:00
d14e18faa9
Make pmap_activate() take a proc *.
1998-01-02 20:10:26 +00:00
9420004b46
Remove the for-loop that wants to map multiple msgbuf pages.
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Multiple msgbuf pages will not work without a redesign of
the kernel VM layout, so let's not pretend we can do it.
1997-10-23 02:24:41 +00:00
c669b1bdeb
Do the cpu_kcore_hdr initialization a little differently.
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(also fix - was not setting pg_frame, pg_valid)
1997-10-05 20:43:27 +00:00
d4713d24c2
Implement the kernel part of pr-1891. This allows for a more flexible sized
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msgbuf. Note that old 'dmesg' and 'syslogd' binaries will continue running,
though old 'dmesg' binaries will output a few bytes of junk at the start of
the buffer, and will miss a few bytes at the end of the buffer.
1997-09-19 13:52:37 +00:00
bbf76eb63e
Implement pmap and va caching within C table managers to help speed
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up PV->(pmap,va) operations.
1997-07-02 03:23:57 +00:00
6cf26b26ae
s/_round_page/m68k_round_page/ s/_trunc_page/m68k_trunc_page/
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s/_btop/m68k_btop/ s/_ptob/m68k_ptob/
1997-06-10 19:42:25 +00:00
3f6f86d875
Undo changes which make pmap_xxxx_page() functions re-entrant; just block
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all interrupts which might cause re-entrancy.
Allow virtual addresses which are not managed by the MI VM system to
participate in the PV system.
Remove a few frivoulous TLB cache flushes.
1997-05-30 07:02:14 +00:00
1b2aae80c2
Added new lock system for the two virtual pages used in temporary mappings.
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Allows pmap_zero_page() and pmap_copy_page() to be re-entrant.
1997-05-28 04:28:52 +00:00
0304ff6aed
Implement code to dynamically size the number of page tables based on available
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RAM at boot.
Also did some cleanup of unused functions, updated several comments, and
removed unecessary 'XXX's.
1997-05-20 06:01:19 +00:00
24af362f60
Implement pmap_pa_exists() so that /dev/mem works.
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This was the reason ps (kvm_getargs) did not work.
1997-05-01 15:00:11 +00:00
a2be180b39
Adjust for new kcore.h
1997-04-09 21:00:35 +00:00
68755b199e
Physical page status functions pmap_clear_reference()
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and pmap_clear_modify() weren't testing if the page whose status was being
changed was being managed. This caused kernel panics with X11.
1997-04-01 02:15:33 +00:00
c29412f1bb
fix a warning
1997-03-26 23:27:12 +00:00
c874276d35
First cut at crashdump support.
1997-03-21 22:46:05 +00:00
ee531cb3c9
s/sun3x_/_/ in sun3x_(round|trunc)_(page|seg) macros
1997-03-13 17:40:33 +00:00
51cfd7ed4d
Get the numbers of kernel MMU tables right.
1997-03-06 05:16:34 +00:00
9a79f92460
Clean out some junk I forgot to remove last time...
1997-03-06 00:15:56 +00:00
a4e5a18b63
Add pmap_bootstrap_setprom() with sets the PROM level-A tables to
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allow the PROM monitor to see mappings in kernel space. This also
fixes a problem with exiting to the monitor with the stack pointer
set to some place in kernel space. Also fix NUM_KERN_PTES, and
change get_pte() so it works on any virtual address.
1997-03-06 00:04:18 +00:00
290f55615a
Took switch statement out of main loop in pmap_protect() and explained more
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of the rationale behind it.
1997-03-02 07:59:21 +00:00
996c634929
Rewrite pmap_remove() to be speedier with large address spaces.
1997-02-22 03:18:30 +00:00
035b20b171
Update copyright and fix typos in macro definition used when not debugging.
1997-02-19 04:17:32 +00:00
7190ad9936
Fix a major bug in pmap_remove_kernel() that causd the removal of
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one page too many (worse, it unmapped our stack page... Ouch!)
Also, use loadcrp() and such instead of calling pmap_activate
in various places so we have more control over TLB flush.
Now pmap_activate() is called only by locore (and that call is
done only if PMAP_DEBUG is defined). Other minor clean-up...
1997-02-16 19:38:08 +00:00
7275a8976f
Add pmap_count(), fix some bugs... (from Jeremy).
1997-02-14 03:56:49 +00:00
27b8c79679
Latest version from Jeremy. Changes too numerous to describe here.
1997-02-12 23:09:32 +00:00
8501929f45
Use copypage() and zeropage() in the right places.
1997-02-02 08:41:10 +00:00
2e2e2a855c
Change "machdep.h" to <machine/machdep.h>
1997-01-27 22:33:34 +00:00
aaf91fd6aa
Adapt to rename of pcb_mmuctx to pcb_mmucrp, and corrected
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prototype of loadcrp(), which kills some bogus type casts.
1997-01-17 16:27:17 +00:00
f286cdd282
Move declaration of struct mmu_rootptr to mc68851.h
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Kill a cast that is now unnecessary.
1997-01-16 22:12:50 +00:00
2ffbfe169b
Punt some historical stuff that was ifdefed out.
1997-01-14 21:01:33 +00:00
cd05f4190d
Initial import. Gets as far as nfs_mountroot.
1997-01-14 20:57:07 +00:00
thorpej