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1309 Commits

Author SHA1 Message Date
mjacob
6cc22e724e Hmmm- how did that happen- I missed a merge 1998-04-15 01:18:17 +00:00
mjacob
cddc0bf326 add Alpha 4100 support 1998-04-15 00:53:53 +00:00
mjacob
6ad4ba8370 some cleanup 1998-04-15 00:51:00 +00:00
mjacob
aed073a77f add Alpha 4100 support 1998-04-15 00:50:14 +00:00
mjacob
0ba76b38c8 spurious interrupt notification and finally adding vmstat -i support 1998-04-15 00:49:58 +00:00
mjacob
0229740b5e removal of unneeded define 1998-04-15 00:49:17 +00:00
mjacob
5f59df9630 oops on byte enables for TurboLaser systems 1998-04-15 00:48:58 +00:00
mjacob
4fa71d82a5 add Alpha 4100 support 1998-04-15 00:46:57 +00:00
mjacob
17ec1fbf11 clarification of comment 1998-04-15 00:46:41 +00:00
mjacob
65e5c41fad do not cia include files here 1998-04-15 00:46:17 +00:00
mjacob
d3f1c5b8d8 add Alpha 4100 support 1998-04-15 00:45:43 +00:00
thorpej
164f56220e Add support for the Cypress CY82C693 PCI-ISA bridge. This bridge is more or 
less like an Intel SIO except that the ELCR registers are accessed differently
than on the Intel SIO.

XXX This code needs to be split up into bridge front-end and PIC back-end
XXX pieces.
 1998-04-14 22:31:17 +00:00
thorpej
4c01c3c48e Pass the pci_chipset_tag_t to sio_intr_setup(). XXX This code should be 
rearranged so that other non-PCI-but-in-all-other-ways-ISA-PIC-like
devices can share code.
 1998-04-14 22:20:59 +00:00
tv
b21bfbde11 Add -Wno-main conditional on compiler being gcc 2.8 or egcs. (This adds 
a HAVE_GCC28 check-variable that can now be used to add other gcc-2.8
flags in cases where they may be useful, or to remove gcc 2.7.2 "bug
workaround" flags.)
 1998-04-12 23:47:41 +00:00
mjacob
e40e2ff2d0 A little buglet: softc for pceb is same as sio- so declare it as such. 
By not doing so, a very obscure bug followed where the config search
stuff stopped at the bridge (pceb) and didn't even call match for the
two Qlogic ISP cards that followed.
 1998-04-12 08:32:19 +00:00
cgd
05bb5a1d2f revert back to 1.28 1998-03-30 17:52:03 +00:00
thorpej
0ce9e8b825 We don't have software-only maps, so a NULL pmap_t will never be passed 
to pmap functions.
 1998-03-28 19:53:42 +00:00
thorpej
cbc72091e5 Remove a comment that is not applicable in NetBSD - we don't have 
software-only maps.
 1998-03-28 19:44:49 +00:00
thorpej
ce4810822b Add autoconfiguration support for the Cypress 82C693 PCI-ISA bridge, 
found on AlphaPC164SX boards.

Partially from Anders Magnusson <ragge@ludd.luth.se>.
 1998-03-28 06:58:43 +00:00
cgd
c0ac8bae67 GC alpha's ECOFF_TOOLCHAIN make variable, and related bits. Nobody 
should be using an ECOFF toolchain on NetBSD/alpha any more.
 1998-03-28 00:50:41 +00:00
thorpej
4893f22399 Much more sane boot block builds, from Chris Demetriou. 1998-03-28 00:21:35 +00:00
thorpej
a95651eaea Add a PMAP_KERNEL_PTE() macro that returns the PTE for a given KVA. If 
DEBUG, this performs a table walk.  Othwise, the Virtual Page Table is
used.  Use this macro in a few places where this was done by-hand.

Make vtophys() use PMAP_KERNEL_PTE().  In non-DEBUG cases, this is
a fair bit faster.
 1998-03-27 19:18:04 +00:00
ross
2ce8cda3e5 Get rid of a /* in a comment. 1998-03-27 01:17:18 +00:00
thorpej
b1e15c2005 Add some robustness to pmap_alloc_physpage(): Instead of panic'ing if 
we can't get a page, find an inactive pmap and pmap_collect() it,
freeing up a few pages.  Go ahead and die if we can't allocate a page
after 5 tries.
 1998-03-27 00:52:43 +00:00
thorpej
b86884a71a Give pmap_collect() some substance: when called, a process is being 
swapped out, so remove all of the physical mappings the process has
in order to free up the page table pages.

Since the pmap module is allowed to "forget" mappings, pmap_collect()
may be called in other situations where the memory situation is desperate,
although it's more likely that the pages will simply be needed again the
next time a process runs.
 1998-03-26 22:18:36 +00:00
thorpej
531db9e0d3 Sanity check the virtual addresses in the kernel and non-kernel cases 
of pmap_enter() (and pmap_kenter_*()).  Remove diagnostic check for
kernel pmap in pmap_alloc_asn().
 1998-03-26 19:06:28 +00:00
thorpej
040f7cbc70 Remove references to pmap.old.h - It should have just been pmap.h, but 
that isn't necessary, either, since <vm/vm.h> is already included.
 1998-03-26 18:17:13 +00:00
thorpej
c4ba627afc Kernel config file for bishop.nas.nasa.gov and ripley.nas.nasa.gov, 
AlphaStation 500 and AlphaStation 600, respectively.
 1998-03-26 03:00:36 +00:00
thorpej
9234f2450b Enable DDB history, netbsd.gdb. 1998-03-26 02:58:48 +00:00
thorpej
6111783e61 if NEW_SCC_DRIVER, 3000/300 and 3000/500 aren't PROM console candidates. 1998-03-26 02:53:21 +00:00
thorpej
a9e071bef5 defopt NEW_SCC_DRIVER 1998-03-26 02:52:43 +00:00
thorpej
1282aca230 Add options UVM, PMAP_NEW, and NEW_SCC_DRIVER. 1998-03-26 02:51:46 +00:00
thorpej
73f1a02583 If NEW_SCC_DRIVER is defined, the 3000/300 and 3000/500 are not 
PROM console candidates.
 1998-03-26 02:45:34 +00:00
thorpej
7b4da708cc Add support for attaching a zstty as the console, conditional on 
NEW_SCC_DRIVER.
 1998-03-26 02:43:22 +00:00
thorpej
4a4bccc923 Remove references to NEW_PMAP. 1998-03-26 02:21:46 +00:00
thorpej
76ba34c797 Remove references to "new_pmap". 1998-03-26 02:19:02 +00:00
thorpej
456b3df281 Remove the Mach 3 pmap from the tree, replacing it with the contents of 
pmap.old.<whatever>.  To see the history, look at the corresponding
pmap.old.<whatever> file.
 1998-03-26 02:18:03 +00:00
thorpej
3ac5a77c70 Make pmap_kremove() deal with mappings entered with pmap_enter() as well. 
Prevents stale PV entries from lingering around.  Fixes a nagging
"kernel stack not valid halt" I was seeing with PMAP_NEW.

Idea from Chuck Cranor.
 1998-03-25 22:52:28 +00:00
mjacob
db6aafad0b With new pmap stuff, the need for MSS3 goes away. 1998-03-25 18:33:41 +00:00
ross
3786a63843 1. Always link at the high address, now that we can use free ram below 
the kernel on most platforms, including all of the entry-level platforms.
2. Kill the comments and options for load address selection.
3. Kill the default -g.
 1998-03-25 02:16:41 +00:00
thorpej
e6cf334f5c Keep a few things that reference kernel variables out of the namespace. 
Add a check to see if libkvm is using this file.
 1998-03-25 00:44:34 +00:00
thorpej
49408401a3 In pmap_destroy_lev1map(), fix a problem where the pmap's ASN wouldn't 
be invalidated if the pmap is not active.  A rare thing (in fact, I'm
having trouble thinking of a scenario where it would happen), but it was
incorrect, nonetheless.
 1998-03-24 22:02:44 +00:00
thorpej
ea074f229a cdev_decl the "zs" device (which is really zstty). 1998-03-24 05:17:14 +00:00
thorpej
0105ff6f53 Update my DEC 3000/400 kernel config to reflect usage of the MI SCC driver. 
Do not try this at home.  Caution: hot coffee is hot.
 1998-03-24 05:16:30 +00:00
thorpej
db00f6f709 Define attachments for the MI SCC driver - only hooks up to ioasic 
for now.
 1998-03-24 05:15:07 +00:00
thorpej
a26a53fbbc Slight hack to allow the MI SCC driver to be used at cdev major 15 
for testing purposes.  Normal kernels still get the Alpha-specific
SCC driver.
 1998-03-24 05:13:59 +00:00
thorpej
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
mjacob
4ccb969d0b Okay, handle the ALLOCNOW case by doing the appropriate adjustments 
up front. Do the spacing arithmetic slightly differently.
 1998-03-23 07:51:25 +00:00
mjacob
8e5970917e Redo it slightly so that S/G now appears to work a bit better. This 
version has 2GB direct map starting at 2GB, and either 256MB or 1GB
S/G starting at 1MB. I've done *some* testing on this, but I'm not
quite happy with it yet.
 1998-03-23 07:42:40 +00:00
mjacob
88c34f6f5f Spaicing for 32 bit ptes (dwlpx only, really) is 0x20, not 1 1998-03-23 07:09:12 +00:00