7225aae835
Move check for user-pmap-still-using-Lev1map from pmap_enter_ptpage()
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to pmap_enter().
1998-03-09 22:31:23 +00:00
daa9cfae50
Don't do the Segtabzero-for-dev-zero hack.
1998-03-09 20:43:28 +00:00
e456fc0538
Simplify/speed up pagemove() somewhat by using the Virtual Page Table.
1998-03-09 20:17:03 +00:00
78a173bada
Define VPT_INDEX(), which computes the index into the Virtual Page Table
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of the PTE that maps the specified virtual address.
Thanks to Chris Demetriou and Ross Harvey for clarifying the VPT.
1998-03-09 19:57:57 +00:00
b3d7fd8f3f
Just use vtophys() to get the PCB phys addr.
1998-03-07 04:20:45 +00:00
9c236919e9
Rewrite pmap_extract(), and use it as appropriate in vtophys() rather
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than (almost) duplicating the code.
1998-03-07 03:37:02 +00:00
cd7d081d02
Export a pointer to the Virtual Page Table.
1998-03-07 03:15:43 +00:00
f7d64ef778
Clean up a comment.
1998-03-07 03:15:06 +00:00
f55b280ffc
Clean this up a bit.
1998-03-07 01:44:08 +00:00
dcbc04e7af
Rename Sysptmap and Sysmap to Lev2map and Lev3map, respectively, and
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add some comments describing in better detail what they are and how they
are used.
1998-03-07 01:43:54 +00:00
60e6d2e48f
Update a comment in pagemove().
1998-03-07 01:26:04 +00:00
ff155df72a
Nuke kvtopte(). Also, change pagemove() to lookup the from and to PTEs
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in each iteration of the loop, since PT pages may not necessarily be
contiguous.
1998-03-07 01:11:39 +00:00
60d30d3838
Nuke kvtopte() and ptetokv().
1998-03-07 01:10:05 +00:00
58a7bd9288
Nuke the vatopa() macro.
1998-03-07 00:42:07 +00:00
059d0c72de
pmap_ste() -> pmap_l2pte(), pmap_pte() -> pmap_l3pte()
1998-03-06 23:41:01 +00:00
8081bd3017
Move pmap_pte*() macros into the header file, nuke pmap_ste_v(), add
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pmap_lev1pte().
1998-03-06 23:19:26 +00:00
53e3bf87b9
Fix think'o in last kcopy() change.
1998-03-05 02:10:57 +00:00
a2db880e8c
In kcopy(), make sure we save and restore the old fault handler; kcopy()
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is called from uiomove(), which may be in the code path of servicing
a non-fatal page fault caused by a copyin() or copyout().
1998-03-04 02:11:58 +00:00
09dbd9234d
fix typo in last commit (noticed on inspection)
1998-03-02 21:36:55 +00:00
7ff7b02fac
allow LDSTATIC definition to be overridden by bsd.own.mk/mk.conf
1998-03-02 20:01:05 +00:00
9da165424c
allow LDSTATIC definition to be overridden by bsd.own.mk/mk.conf
1998-03-02 19:57:00 +00:00
03169f0089
Second part of cdev_decl() migration. Declare cputype variable.
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Add config info for a12 switch driver and console driver.
1998-03-02 08:04:04 +00:00
41a61f7c9e
Update interrupt name table for a12 crossbar.
1998-03-02 07:47:52 +00:00
b8d5ca6c78
Centralize cdev_decl() for these MI drivers + a12dc in machine/conf.h (cgd)
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(This does not introduce any config or option dependencies.)
1998-03-02 07:44:18 +00:00
ff94450f84
Use the more consistent register field names & add ctags(1) keys.
1998-03-02 07:07:41 +00:00
6e6f663204
Rewrite of interrupt dispatch logic. Add ctags(1) keys for *a12*.h files.
1998-03-02 07:03:20 +00:00
13aeff8570
Fix attachment message.
1998-03-02 06:59:38 +00:00
1ada245647
Support attachment of xb and a12dc, define most of the remaining
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core logic register fields.
1998-03-02 06:56:16 +00:00
469f9b6126
Clean up attachment code and prototypes.
1998-03-02 06:53:34 +00:00
7a571c643b
Rename a few macros to better describe what they are:
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- kvtol1pte() -> l1pte_index()
- vatoste() -> l2pte_index()
- vatopte() -> l3pte_index()
1998-03-02 00:49:01 +00:00
54bb4f9e6e
Rewrite pmap_enter() to have a more sane structure, useful for when
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page table page management is rewritten.
1998-03-02 00:22:54 +00:00
4ebd177543
Remove the A12 from the rogue's gallery of the promcons-addicted.
1998-03-01 08:17:36 +00:00
39254d4d4b
Poll console at 50 Hz, not 1024 Hz! (4 tlb and imb coherency ops per poll
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make this exceedingly expensive even on an alpha) Note: only 3 systypes
still use promcons.
1998-03-01 07:40:11 +00:00
2170c2a46d
Force elf symbol sections to an addressable boundary.
1998-02-28 10:38:55 +00:00
18a1481f7a
Use NFS_BOOT_DHCP rather than NFS_BOOT_BOOTP. The former is more
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flexible, and the boot blocks use DHCP already(!!!) and it'd be good
for the kernel to be consistent with them.
1998-02-28 02:01:32 +00:00
ba3ddd48ad
Move the code that enters and removes entries from the pv_table into
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functions pmap_enter_pv() and pmap_remove_pv().
1998-02-28 01:07:05 +00:00
9bbe89ea3f
Garbage-collect the kpt_page stuff; it was basically unused in this
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pmap, and isn't applicable to how dynamically allocated kernel page
tables will work on the Alpha.
1998-02-27 22:25:25 +00:00
faf1155de5
Revamp pv_table management:
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- Make pv_table an array of struct pv_head's, which contain LIST_HEADs
for the pv_entry's, as well as page attributes (mod, ref, ptpage).
- Use <sys/queue.h> to manipulate pv_entry lists.
- Fix several obvious bugs in pmap_collect_pv().
- Use K0SEG to access pv_page's.
1998-02-27 19:39:03 +00:00
f17bbcfffa
Changes necessitated by the fact that all pmaps have their own level 1
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page tables: use curpcb to determine which level 1 map defines the
current VM context, and use that level 1 map when mapping and unmapping
the PROM.
1998-02-27 04:03:00 +00:00
c4e7c88520
Step 1 of the Grand Alpha Pmap Rototill:
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- Clean up pmap_bootstrap() some, and make a slight change to how the
PROM mappings are saved.
- Give each pmap its own level 1 page table, rather than sharing a global
level 1 page table. This will eventually allow for Very Large user
address spaces.
- Keep a list of all pmaps, so that when kernel level 2 page tables are
allocated, all level 1 tables may be updated.
- Add a couple of functions for allocating and freeing page table pages.
- Add a few comments about ASN allocation.
1998-02-27 03:59:58 +00:00
5d56ce57ba
Several changes related to all pmaps having their own level 1
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page table:
- Update the current hwpcb pointer in the SWITCH_CONTEXT macro, so that
we know it's always correct.
- Optimize cpu_switch(): if we're switching to ourselves, skip the
actual context swap.
- Clean up some comments and remove some code rendered obsolete by
the fact that address spaces are now selected by switching to a
new level 1 page table.
1998-02-27 03:53:49 +00:00
cb6972d4d3
Implement alpha_pal_swpctx().
1998-02-27 03:44:53 +00:00
1ed8ea9966
note second parm of sysarch() is now void *, + trivial KNF, etc.
1998-02-25 21:41:55 +00:00
58509e699f
Add support for UVM.
1998-02-24 07:38:01 +00:00
772da350d4
Disable the message buffer during crash dumps by clearing msgbufenabled,
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not msgbufmapped.
1998-02-19 04:18:30 +00:00
3b9429b248
Minor changes to make all the float.h files match.
1998-02-18 11:01:27 +00:00
f19c0ee648
nuke pmap_map(). it's an internal MD function, and it's unused
1998-02-18 01:44:32 +00:00
8354e68508
Remove "class" declarations, and add "devclass" declarations where
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appropriate. Fix several inconsistencies between device class and
attributes. Mostly from Chris Demetriou.
1998-02-16 22:12:45 +00:00
b4e77b173a
Add support for non-contiguous physical memory, using MACHINE_NEW_NONCONTIG.
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These changes also recover memory that is located before the kernel in
the first system software segment on systems which do not use the PROM
for console I/O. Written by Chris Demetriou and myself.
1998-02-16 03:59:55 +00:00
1584dc4420
The pmap_emulate_reference warning about the page not being managed should
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be a panic instead. If it's hit, "random" memory is going to be corrupted.
1998-02-14 02:04:05 +00:00
thorpej