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9c236919e9
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1208 Commits

Author SHA1 Message Date
thorpej
9c236919e9 Rewrite pmap_extract(), and use it as appropriate in vtophys() rather 
than (almost) duplicating the code.
 1998-03-07 03:37:02 +00:00
thorpej
cd7d081d02 Export a pointer to the Virtual Page Table. 1998-03-07 03:15:43 +00:00
thorpej
f7d64ef778 Clean up a comment. 1998-03-07 03:15:06 +00:00
thorpej
f55b280ffc Clean this up a bit. 1998-03-07 01:44:08 +00:00
thorpej
dcbc04e7af Rename Sysptmap and Sysmap to Lev2map and Lev3map, respectively, and 
add some comments describing in better detail what they are and how they
are used.
 1998-03-07 01:43:54 +00:00
thorpej
60e6d2e48f Update a comment in pagemove(). 1998-03-07 01:26:04 +00:00
thorpej
ff155df72a Nuke kvtopte(). Also, change pagemove() to lookup the from and to PTEs 
in each iteration of the loop, since PT pages may not necessarily be
contiguous.
 1998-03-07 01:11:39 +00:00
thorpej
60d30d3838 Nuke kvtopte() and ptetokv(). 1998-03-07 01:10:05 +00:00
thorpej
58a7bd9288 Nuke the vatopa() macro. 1998-03-07 00:42:07 +00:00
thorpej
059d0c72de pmap_ste() -> pmap_l2pte(), pmap_pte() -> pmap_l3pte() 1998-03-06 23:41:01 +00:00
thorpej
8081bd3017 Move pmap_pte*() macros into the header file, nuke pmap_ste_v(), add 
pmap_lev1pte().
 1998-03-06 23:19:26 +00:00
thorpej
53e3bf87b9 Fix think'o in last kcopy() change. 1998-03-05 02:10:57 +00:00
thorpej
a2db880e8c In kcopy(), make sure we save and restore the old fault handler; kcopy() 
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
cgd
09dbd9234d fix typo in last commit (noticed on inspection) 1998-03-02 21:36:55 +00:00
cgd
7ff7b02fac allow LDSTATIC definition to be overridden by bsd.own.mk/mk.conf 1998-03-02 20:01:05 +00:00
cgd
9da165424c allow LDSTATIC definition to be overridden by bsd.own.mk/mk.conf 1998-03-02 19:57:00 +00:00
ross
03169f0089 Second part of cdev_decl() migration. Declare cputype variable. 
Add config info for a12 switch driver and console driver.
 1998-03-02 08:04:04 +00:00
ross
41a61f7c9e Update interrupt name table for a12 crossbar. 1998-03-02 07:47:52 +00:00
ross
b8d5ca6c78 Centralize cdev_decl() for these MI drivers + a12dc in machine/conf.h (cgd) 
(This does not introduce any config or option dependencies.)
 1998-03-02 07:44:18 +00:00
ross
ff94450f84 Use the more consistent register field names & add ctags(1) keys. 1998-03-02 07:07:41 +00:00
ross
6e6f663204 Rewrite of interrupt dispatch logic. Add ctags(1) keys for *a12*.h files. 1998-03-02 07:03:20 +00:00
ross
13aeff8570 Fix attachment message. 1998-03-02 06:59:38 +00:00
ross
1ada245647 Support attachment of xb and a12dc, define most of the remaining 
core logic register fields.
 1998-03-02 06:56:16 +00:00
ross
469f9b6126 Clean up attachment code and prototypes. 1998-03-02 06:53:34 +00:00
thorpej
7a571c643b Rename a few macros to better describe what they are: 
- kvtol1pte() -> l1pte_index()
- vatoste() -> l2pte_index()
- vatopte() -> l3pte_index()
 1998-03-02 00:49:01 +00:00
thorpej
54bb4f9e6e Rewrite pmap_enter() to have a more sane structure, useful for when 
page table page management is rewritten.
 1998-03-02 00:22:54 +00:00
ross
4ebd177543 Remove the A12 from the rogue's gallery of the promcons-addicted. 1998-03-01 08:17:36 +00:00
ross
39254d4d4b Poll console at 50 Hz, not 1024 Hz! (4 tlb and imb coherency ops per poll 
make this exceedingly expensive even on an alpha)  Note: only 3 systypes
still use promcons.
 1998-03-01 07:40:11 +00:00
ross
2170c2a46d Force elf symbol sections to an addressable boundary. 1998-02-28 10:38:55 +00:00
cgd
18a1481f7a Use NFS_BOOT_DHCP rather than NFS_BOOT_BOOTP. The former is more 
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
thorpej
ba3ddd48ad Move the code that enters and removes entries from the pv_table into 
functions pmap_enter_pv() and pmap_remove_pv().
 1998-02-28 01:07:05 +00:00
thorpej
9bbe89ea3f Garbage-collect the kpt_page stuff; it was basically unused in this 
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
thorpej
faf1155de5 Revamp pv_table management: 
- 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
thorpej
f17bbcfffa Changes necessitated by the fact that all pmaps have their own level 1 
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
thorpej
c4e7c88520 Step 1 of the Grand Alpha Pmap Rototill: 
- 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
thorpej
5d56ce57ba Several changes related to all pmaps having their own level 1 
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
thorpej
cb6972d4d3 Implement alpha_pal_swpctx(). 1998-02-27 03:44:53 +00:00
perry
1ed8ea9966 note second parm of sysarch() is now void *, + trivial KNF, etc. 1998-02-25 21:41:55 +00:00
thorpej
58509e699f Add support for UVM. 1998-02-24 07:38:01 +00:00
thorpej
772da350d4 Disable the message buffer during crash dumps by clearing msgbufenabled, 
not msgbufmapped.
 1998-02-19 04:18:30 +00:00
mycroft
3b9429b248 Minor changes to make all the float.h files match. 1998-02-18 11:01:27 +00:00
cgd
f19c0ee648 nuke pmap_map(). it's an internal MD function, and it's unused 1998-02-18 01:44:32 +00:00
thorpej
8354e68508 Remove "class" declarations, and add "devclass" declarations where 
appropriate.  Fix several inconsistencies between device class and
attributes.  Mostly from Chris Demetriou.
 1998-02-16 22:12:45 +00:00
thorpej
b4e77b173a Add support for non-contiguous physical memory, using MACHINE_NEW_NONCONTIG. 
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
cgd
1584dc4420 The pmap_emulate_reference warning about the page not being managed should 
be a panic instead.  If it's hit, "random" memory is going to be corrupted.
 1998-02-14 02:04:05 +00:00
cgd
1538076f47 fix pasto in last (sigh) 1998-02-14 01:18:46 +00:00
cgd
ab67040f58 fix for (harmless) bogon introduced in last commit 1998-02-14 01:17:19 +00:00
cgd
e719e8f703 adjust kernel core dump code for changes in kcore.h, also clean up 
slightly.
 1998-02-14 00:53:26 +00:00
cgd
69d88fbfd6 replace the single phys_ram_seg_t with a count. an array of segment 
descriptors will be placed after this structure in the core file.
 1998-02-14 00:17:57 +00:00
enami
2c12105cda Remove comment which says that fxp is untested (it is known to work now). 
Also, make model name closer to what driver prints startup.
 1998-02-13 04:33:30 +00:00