a1c151d56b
Add system variation for Miata 1.5.
1998-06-05 18:18:37 +00:00
cbaedc8675
Support for the Digital Personal Workstation [456]xx, a.k.a. Miata (systype
...
DEC_550). Mostly cloned from the EB164 systype, with some modifications
from myself, and a few more from Andrew Gellatin.
1998-06-05 02:13:41 +00:00
44605ba506
Define a bunch more system variations.
1998-06-03 23:07:38 +00:00
d6041754c2
Allow the DMA tag to specify a boundary contraint. If the device has a
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more strict boundary, the map will use it, otherwise the map will inherit
the tag's, unless the tag's constraint is 0 (no boundary constraint).
1998-06-03 18:25:53 +00:00
a97fc2f180
If any of _ANSI_SOURCE, _POSIX_C_SOURCE or _XOPEN_SOURCE are defined, don't
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provide any identifiers other than sig_atomic_t.
1998-05-25 20:59:01 +00:00
085b73d2db
Add "SCSIID" and "SCSIFAST" environment variables present on the
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DEC 3000 systems.
1998-05-25 04:01:10 +00:00
a2f214a443
Add fine-grained locking, using a locking protocol modeled after the i386
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UVM pmap's locking protocol, written by Chuck Cranor. Not all of the
support for multiple processors is here yet, but the kernel does run
under moderate loads with LOCKDEBUG (all locking operations are no-ops
unless LOCKDEBUG is turned on).
This is by no means complete... there are still some possible snares
to take a look at.
1998-05-20 04:05:50 +00:00
ca819f2940
Argh, finish renaming Lev1map to kernel_lev1map.
1998-05-19 18:35:11 +00:00
ca12fa7ebe
Make PT page reference counting more generic so it can be used for other
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special use page types.
1998-05-19 02:04:28 +00:00
8fdc16212f
The Alpha architecture has a variable page size; don't hardwire the
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number of PV entries per page at compile time.
1998-05-19 00:42:16 +00:00
b44dc2ecbf
Make the page attribute manifest constant names have similar form to
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page usage manifest constant names.
1998-05-19 00:29:03 +00:00
180f140a85
Keep track of page usage inside the pmap (pvent, l{1,2,3}pt page, "normal").
1998-05-19 00:20:21 +00:00
d19fbe1196
Garbage-collect the old confargs stuff that was used in the Early Days.
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It isn't really appropriate anymore. Replace it with a real mainbus
attach args structure.
1998-05-14 00:01:30 +00:00
6a49b0a33e
Clean up some historical artifacts.
1998-05-13 23:38:26 +00:00
49aa171ab9
Add support for chaining DMA windows together, for falling back on
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SGMAPs if a direct-mapped window fails.
1998-05-13 21:21:16 +00:00
4665241bf8
Simplify the direct-mapped DMA case somewhat by adding a window base
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member to the DMA tag, and calling the direct-mapped back-ends directly,
rather than through chipset-specific front-ends which pass the window
base as an additional argument.
1998-05-07 20:09:37 +00:00
1686aca01d
Pull in opt_gateway.h as appropriate.
1998-04-29 23:11:00 +00:00
371b1a7fb7
Define the DEC 550 Personal Workstation (Miata) systype.
1998-04-29 02:39:24 +00:00
a152517daa
Add interrupt counter space for the DEC EB64+, and fix a misplaced
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counter comment in the kn300 interrupt counters.
1998-04-29 00:34:06 +00:00
30188853dc
Increase the efficiency of pmap_l{2,3}pte() somewhat, by allowing the
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caller to pass an optional 3rd argument, which is the previous level
PTE corresponding the virtual address. If this argument is non-NULL,
the table walk otherwise necessary will be bypassed.
1998-04-27 19:07:03 +00:00
a53c1863fe
Provide definitions for intptr_t and uintptr_t, signed resp. unsigned integral
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types large enough to hold any pointer.
1998-04-27 17:39:10 +00:00
7f77474219
Oops, forgot to delete. It's in dev/pci now.
1998-04-26 11:57:00 +00:00
a8d3df00ed
oops- add missing include
1998-04-15 21:42:24 +00:00
b9d78308c1
tell drivers that this port knows about the mi wscons stuff
1998-04-15 21:12:45 +00:00
4fa71d82a5
add Alpha 4100 support
1998-04-15 00:46:57 +00:00
2ce8cda3e5
Get rid of a /* in a comment.
1998-03-27 01:17:18 +00:00
6111783e61
if NEW_SCC_DRIVER, 3000/300 and 3000/500 aren't PROM console candidates.
1998-03-26 02:53:21 +00:00
456b3df281
Remove the Mach 3 pmap from the tree, replacing it with the contents of
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pmap.old.<whatever>. To see the history, look at the corresponding
pmap.old.<whatever> file.
1998-03-26 02:18:03 +00:00
e6cf334f5c
Keep a few things that reference kernel variables out of the namespace.
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Add a check to see if libkvm is using this file.
1998-03-25 00:44:34 +00:00
ea074f229a
cdev_decl the "zs" device (which is really zstty).
1998-03-24 05:17:14 +00:00
ee83014c4d
Initial mostly-working ioasic attachment for the MI 8530 SCC driver. It is
...
enough to use as a console on my DEC 3000/400 (connected to a VT-520
terminal).
XXX The MI SCC driver needs serious changes to handle platforms which
have muliple SCC attachments (e.g. the Alpha port, which has an ioasic
attachment for TurboChannel systems and a gbus attachment for TurboLaser
systems).
XXX The MI SCC driver also needs changes to deal with the wacky (to put
it mildly) way the chips are wired up on the ioasic (on both TC Alphas
and DECstations). These are going to come along later.
1998-03-24 05:12:00 +00:00
fcfe2f1539
Implement a set of `atomic' (using load-locked and store-conditional)
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operations. Initial set includes:
alpha_atomic_setbits_q() set bits in a quad
alpha_atomic_clearbits_q() clear bits in a quad
1998-03-22 07:26:32 +00:00
a8d86e5a7c
Replace PMAP_ASNGEN_INVALID with PMAP_ASN_RESERVED.
1998-03-22 05:39:50 +00:00
63c73f94e3
Add a few more systypes.
1998-03-20 21:48:03 +00:00
b637a998f4
Add ASN housekeeping and a CPU mask to the pmap.
1998-03-18 19:39:23 +00:00
961a955498
Move the "are we active" macros out of the header file.
1998-03-18 19:27:46 +00:00
56e004c995
Pass the max ASN from the HWRPB to pmap_boostrap().
1998-03-18 19:02:49 +00:00
426d2953f5
Add a macro to test if PG_ASM (Address Space Match) is set in a PTE.
1998-03-18 19:00:15 +00:00
f8cff5ab23
Add a software PTE bit that indicates that a va -> pa mapping was entered
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in the physical->virtual list.
1998-03-17 04:53:43 +00:00
00452b441f
Move PTE-related constants here, and make them not depend on a hard-coded
...
page size (i.e. use the one initialized from the HWRPB at boot time).
Do a bit of cleanup while here, rendering old inherited constants obsolete.
1998-03-12 07:29:21 +00:00
4d8723232d
Garbage-collect a bunch of constants that were inherited, but are no
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longer necessary or make sense.
1998-03-12 07:28:07 +00:00
bd3c0e36cf
Garbage-collect this a bit.
1998-03-12 06:47:11 +00:00
152a4bfa60
Increase the maximum userspace address to 4TB. Leave the stack at 8G
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for now, but make a note that we might want to move it down to 4G later.
1998-03-12 01:25:52 +00:00
e046925c3a
Massive cleanup and partial rewrite of the NetBSD/alpha pmap module.
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Major change is that page table page management has been completely
rewritten. Page tables are now accessed via K0SEG (no more KVA space
wasted on user page tables), and a much larger user address space is
supported.
Many thanks to Chris Demetriou and Ross Harvey for helpful insight and
debugging assistance.
1998-03-12 01:24:52 +00:00
900e1c90bd
Nuke ALPHA_STSIZE and ALPHA_MAX_PTSIZE. Add macros to compute and operate
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on segments mapped by L1 and L2 PTEs.
1998-03-12 01:21:21 +00:00
78a173bada
Define VPT_INDEX(), which computes the index into the Virtual Page Table
...
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
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
60d30d3838
Nuke kvtopte() and ptetokv().
1998-03-07 01:10:05 +00:00
thorpej