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1705 Commits

Author SHA1 Message Date
thorpej
1aa688234e Miata 1 has an Intel SIO at bus 0 device 7 and a CMD PCI IDE at bus 0 
device 4.  Miata 1.5 and Miata 2 have a Cypress at device 7 and PCI IDE
at functions 1 and 2 of the Cypress (like the PC164SX).  These on-board
PCI IDE controllers are wired to compatibility mode, so don't bother
trying to map the interrupt.
 1998-06-05 19:04:51 +00:00
thorpej
a1c151d56b Add system variation for Miata 1.5. 1998-06-05 18:18:37 +00:00
thorpej
c072110af0 Actually, I did use a few of them on this file (I wasn't clear enough 
in my mail to Ross, I guess...)
 1998-06-05 17:42:53 +00:00
thorpej
bb362059ac On Pass 1 Pyxis, disable PCI Read Prefetching, and warn the user about 
the DMA bug that exists on this Pyxis revision.
 1998-06-05 17:24:11 +00:00
thorpej
29977868a7 What was called CNFG in ALCOR and ALCOR2 is actually called PYXIS_CTRL1 
in Pyxis.  Add a comment to this fact.
 1998-06-05 17:22:34 +00:00
thorpej
73e5032ac9 Define the Pyxis-specific bits in the CIA_CSR_REV register (ID mask, and 
the ID for the 21174).
 1998-06-05 17:16:31 +00:00
thorpej
2701ea3ef3 Add DEC_550 (Miata). 1998-06-05 17:03:07 +00:00
ross
5790ee09ee Revert...Jason didn't use Andrew's diffs. 1998-06-05 15:28:40 +00:00
ross
8f455480ef Tweak the copyrights a little bit. pci_550.h gets a TNF copyright, not 
CMU, and pci_550.c keeps TNF but gets "Andrew Gallatin and Jason R. Thorpe".
 1998-06-05 03:34:27 +00:00
thorpej
cf914cac00 oops, read CNFG on all Pyxis revs. 1998-06-05 02:15:38 +00:00
thorpej
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
thorpej
3cfb38c5d1 Define the Pyxis interrupt request register. 1998-06-05 00:53:02 +00:00
thorpej
3249813e11 For whatever reason, the firmware seems to enable PCI loopback mode if it 
also enables BWX.  Make sure it's enabled if we have an old, buggy firmware
rev.
 1998-06-04 22:58:33 +00:00
thorpej
d4d49905dd Add support for using BWX for PCI config space and PCI i/o and mem space 
on the ALCOR2 and Pyxis.  BWX is enabled iff:
- It hasn't been disabled by the user (patch `cia_use_bwx' or build cia.o
  with the option "CIA_USE_BWX=0"),
- it's enabled in CIA_CSR_CNFG,
- we are running on an EV5-family processor,
- BWX is in the processor's capabilities mask.
 1998-06-04 21:34:45 +00:00
thorpej
616125f8d1 Deal with a hardware bug in Pass 1 and Pass 2 Pyxis chips. Basically, 
the scatter/gather TLB cannot be invalidated on these chips.  So, to
work around this, we configure the otherwise unsed DMA Window 2 as a
2M SGMAP window at 128M, point all of its page table entries at the
DMA spill page, and, when the TLB is to be invalidated, put the PCI bus
into loopback mode, and create a target hit on Window 2 every 64k for
the number of TLB entries (plus a few ... it seems to not work unless
we read a few extra times), forcing out old TLB entries to make room for
the new, dummy target hits.
 1998-06-04 18:11:23 +00:00
thorpej
a51d42503c Export the spill page PTE, and provide a hook to initialize it early. 1998-06-04 01:22:52 +00:00
thorpej
6dc28f5445 CIA and Pyxis have 8 scatter/gather TLB entries. 1998-06-04 01:18:22 +00:00
thorpej
32fef69ef7 Define the CIA control register. 1998-06-04 01:04:11 +00:00
thorpej
d94f02f9fd Ok, now we _REALLY_ have Pyxis recognition correct. There are two systypes 
that can have Pyxis: EB164 (AlphaPC164LX and AlphaPC164SX) and DEC_550 (Miata),
and these systypes/variations _always_ have Pyxis.
 1998-06-03 23:16:55 +00:00
thorpej
44605ba506 Define a bunch more system variations. 1998-06-03 23:07:38 +00:00
thorpej
15c52040a5 Define the ALT_MEM big in the CIA revision register. 1998-06-03 22:19:08 +00:00
mjacob
9f5797ac1d turn on Essential HIPPI for these configurations 1998-06-03 21:16:28 +00:00
thorpej
d6041754c2 Allow the DMA tag to specify a boundary contraint. If the device has a 
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
thorpej
50be447da3 Sync the bus_dmamap_load back-end functions between alpha and i386. (only 
slight, unnecessary differences)
 1998-06-03 04:15:05 +00:00
thorpej
7022024d4a Add epic* at pci? 1998-06-02 01:43:33 +00:00
thorpej
a7f360c6c9 Specify a non-profiling C rule. 1998-05-31 23:25:41 +00:00
matt
5d6bc16daa more optimizations 1998-05-29 15:55:34 +00:00
matt
164da176e8 Add boundary checks to _bus_dma_load... 1998-05-29 15:25:07 +00:00
drochner
0c05b92da1 pull in new PC display headers 1998-05-28 16:59:31 +00:00
thorpej
c59c1eae2a Define ioasic device offsets in terms of standard ioasic "slot" offsets. 1998-05-27 00:18:13 +00:00
thorpej
1ef3ca572e - Additional rearrangement for the sake of running on the DECstation some 
day.
- Convert to use bus_dma.
- Fix cleaning up unaligned start address.
- Correctly determine if the device supports Fast SCSI, and adjust the
  minimum sync period accordingly.
- Compute minimum sync period correctly on the 25MHz devices.
- Use GPI2 to determine if we're a 25MHz or 40MHz device.
- Currectly determine SCSI ID and "fast mode enabled" for the built-in
  TCDS on DEC 3000 models, using cached information from the PROM environment.
 1998-05-26 23:43:05 +00:00
thorpej
ab087002d1 Make this into a proper attachment (i.e. use asc_tcds) and clean up 
the namespace accordingly.
 1998-05-26 23:37:44 +00:00
thorpej
3aa84f9e26 - Make this into a proper attachment (i.e. use asc_tcds) and clean up 
the namespace accordingly.
- Set FCLK in the CFG3 register if we have a > 25MHz clock.
- Indicate that we support Fast mode to the back-end if we're told we're
  fast by the TCDS layer.
- Correctly compute the minimum sync period.
 1998-05-26 23:37:27 +00:00
thorpej
3ce836df8d Make the TCDS attachment of the ASC driver a proper attachment (i.e. 
attach it with asc_tcds).
 1998-05-26 23:34:23 +00:00
thorpej
2d384ae1a1 GPI2 in the CIR register indicates our clock speed: 1 = 25MHz, 0 = 40MHz. 1998-05-26 22:48:01 +00:00
kleink
a97fc2f180 If any of _ANSI_SOURCE, _POSIX_C_SOURCE or _XOPEN_SOURCE are defined, don't 
provide any identifiers other than sig_atomic_t.
 1998-05-25 20:59:01 +00:00
thorpej
e569598438 On DEC 3000s, ask the prom for the SCSI ID and "fast mode enabled" of 
the built-in TCDS, while we can still access the prom.
 1998-05-25 05:16:42 +00:00
thorpej
085b73d2db Add "SCSIID" and "SCSIFAST" environment variables present on the 
DEC 3000 systems.
 1998-05-25 04:01:10 +00:00
thorpej
57c68363d6 Add support for reading the SCSI ID and "fast mode enabled" from the 
PMAZB-AA and PMAZC-AA EEPROM.
 1998-05-25 01:14:38 +00:00
thorpej
3b9e9634fb - Change the tcds child locator from "slot" to "chip", making it look less 
like a TurboChannel locator, and more like what is actually going on.
- Allow tcds and asc children of tcds to be cloned.
 1998-05-24 23:45:29 +00:00
thorpej
d3ead78027 Several changes to the TurboChannel Dual SCSI driver: 
- Fix the autoconfiguration model; the TCDS children don't attach to
  TurboChannel, so don't make it look like they do.
- Make the driver use bus_space (not bus_dma yet; soon)
- Recognize the PMAZ-FS (baseboard fast SCSI on DEC 3000s) and the
  PMAZB-AA (TCDS option card) and PMAZC-AA (TCDS fast SCSI option card).
- Rearrange it a bit, so that it can eventually be made into an "MI"
  TurboChannel driver (i.e. work on DECstations).
 1998-05-24 23:41:42 +00:00
ross
a3073631d7 Rebury an old mach-vm-quirk warning, for mach vm kernels. 1998-05-24 22:15:19 +00:00
ross
1ce82f8f84 Fix previous to kill gcc warning in non-DEBUG compile. 1998-05-24 20:59:49 +00:00
matt
66e7b8998f Only disable stray interrupts if there is no interrupt handler attached 1998-05-24 19:09:57 +00:00
matt
a54568bc38 Add PCMCIA hooks (taken from files.i386) 1998-05-23 22:42:14 +00:00
ross
02ae2c98b3 In pmap_pv_enter() untangle the allocated pv (now "newpv") and the DEBUG 
loop temporary so DEBUG kernels don't trap on startup.
 1998-05-23 22:23:09 +00:00
ross
30e2441b99 Prototype sio_intr_alloc(). 1998-05-23 21:36:33 +00:00
matt
9c2e213217 Add sio_intr_alloc (copied from i386's isa_intr_alloc) for PCMCIA. 1998-05-23 18:35:56 +00:00
matt
11e1975af7 Add isa_intr_alloc macro (for PCMCIA). 1998-05-23 18:35:03 +00:00
thorpej
3dfd62c76f cs_heldchar is gone. 1998-05-23 00:51:10 +00:00
thorpej
0cb3acc9ae Correct a small, but fatal, typo. 1998-05-21 23:38:04 +00:00
thorpej
93d96b3415 Add LOCKDEBUG (commented out). 1998-05-20 18:09:16 +00:00
thorpej
a2f214a443 Add fine-grained locking, using a locking protocol modeled after the i386 
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
thorpej
6626878e7b It is no longer necessary for pmap_pinit() and pmap_release() to be 
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
thorpej
ca819f2940 Argh, finish renaming Lev1map to kernel_lev1map. 1998-05-19 18:35:11 +00:00
thorpej
eaf145ad5e Make function naming consistent, and teach pmap_pv_dump() about page 
usage types.
 1998-05-19 05:21:34 +00:00
thorpej
dc13176aec No need to keep global pointers to the initial kernel level 2 and level 3 
page tables.  Also, rename Lev1map to kernel_lev1map.
 1998-05-19 02:57:01 +00:00
thorpej
804e5be6f7 Nuke `register'. 1998-05-19 02:43:48 +00:00
thorpej
293854e385 Put pmap_initialized in the BSS segment. 1998-05-19 02:42:41 +00:00
thorpej
ca12fa7ebe Make PT page reference counting more generic so it can be used for other 
special use page types.
 1998-05-19 02:04:28 +00:00
thorpej
8fdc16212f The Alpha architecture has a variable page size; don't hardwire the 
number of PV entries per page at compile time.
 1998-05-19 00:42:16 +00:00
thorpej
b44dc2ecbf Make the page attribute manifest constant names have similar form to 
page usage manifest constant names.
 1998-05-19 00:29:03 +00:00
thorpej
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
matt
ba482f242f Fix lc0 (lemac) line(s) so that the de20[345]s will work again. Add depca 
for de20[012]s (tested and works on a pc164sx).
 1998-05-14 21:53:40 +00:00
drochner
95bdb660ed Simple screen attribute handling for wscons. 
The graphics device driver passes a "default attribute" for normal text
output to the wscons framework. If the emulation module needs more
attributes (for different "renditions") it can allocate them via a
callback.
For now, only the "sun" emulation makes use of it.
 1998-05-14 20:49:55 +00:00
thorpej
d19fbe1196 Garbage-collect the old confargs stuff that was used in the Early Days. 
It isn't really appropriate anymore.  Replace it with a real mainbus
attach args structure.
 1998-05-14 00:01:30 +00:00
thorpej
6a49b0a33e Clean up some historical artifacts. 1998-05-13 23:38:26 +00:00
thorpej
748d204949 Cleanup TurboLaser autoconfiguration somewhat. 1998-05-13 23:23:23 +00:00
thorpej
b24eb75496 Clean up a buglet. 1998-05-13 23:22:08 +00:00
thorpej
ca9600b324 Implement and use gbussubmatch(). 1998-05-13 22:13:35 +00:00
thorpej
326f8183dc No need to hard-code the mcclock offset on the gbus; gbus is direct-config. 1998-05-13 22:03:07 +00:00
thorpej
fb9726fe91 Add a few files related to the Digital Personal Workstation. 1998-05-13 21:59:32 +00:00
thorpej
49aa171ab9 Add support for chaining DMA windows together, for falling back on 
SGMAPs if a direct-mapped window fails.
 1998-05-13 21:21:16 +00:00
thorpej
b012e4e39b Normalize gbus configuration somewhat, and add support for configuring 
the Zilog DUARTs.
 1998-05-13 02:50:29 +00:00
thorpej
6172f5a0ac Use flags instead of a bunch of booleans. Add a "use bwx" flag. 1998-05-12 19:07:21 +00:00
thorpej
0b64ea0879 Gah, typo. 1998-05-12 18:45:04 +00:00
thorpej
86ee1b1000 Oops, and the writes, too. 1998-05-12 18:44:32 +00:00
thorpej
cc45d00d3c Clean up the code that puts the PCI controller into config mode 1; no 
functional difference.
 1998-05-12 18:40:44 +00:00
thorpej
34bbe5cd80 Rework ALCOR/ALCOR2/Pyxis recognition Yet Again. (Actually, just the 
way it's displayed, and mask off the revision once we've determined
which chip we're talking to.)
 1998-05-11 23:56:16 +00:00
thorpej
0624060713 Rework PCI interrupt mapping on the EB164 systype. Rather than computing 
interrupt routing directly, use the interrupt routing information provided
in the PCI "line" register.  The previous scheme did not work properly on
AlphaPC 164SXs.  Also, be silent about the fact that 0/8/x does not
have its interrupt mapped; this is to be expected on the 164SX (this is
the Cypress PCI-ISA bridge, which has IDE wired to compat mode on functions
1 and 2; the 164SX does _not_ have PCI IDE on device 11 like other AlphaPCs).
 1998-05-11 23:36:46 +00:00
thorpej
d5157b2b05 Sync w/ reality 1998-05-11 00:34:24 +00:00
kleink
687ea7404c Fix some arithmetics lossage on typeless pointers. 1998-05-08 16:55:15 +00:00
thorpej
4665241bf8 Simplify the direct-mapped DMA case somewhat by adding a window base 
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
mjacob
294015435b remove the unneccessary alpha_mbs and slight cleanup 1998-05-05 22:01:54 +00:00
mjacob
742983f1eb make it impossible to compile w/o SIO (you cannot have a console otherwise 1998-05-05 22:01:31 +00:00
mjacob
1363662600 update for new ws stuff, plus cleanup 1998-05-05 22:00:28 +00:00
mjacob
0713044d87 carry over new ws words from GENERIC 1998-05-05 20:29:18 +00:00
mjacob
bcfe658515 Move declaration within block where it will be used (in case 
keyboard not defined).
 1998-05-05 20:10:05 +00:00
thorpej
88bf077524 Don't need options UVM and PMAP_NEW anymore; they're now standard. 1998-05-04 04:38:28 +00:00
thorpej
22e3e4691d Make UVM+PMAP_NEW the standard VM system on NetBSD/alpha. 1998-05-04 04:35:46 +00:00
ross
53dbd5b7fc Add file-system MFS to support ftp download of sysinst. 1998-05-03 23:15:45 +00:00
augustss
abbe1b7df3 Add Ensoniq AudioPCI driver. Commented out until tested. 1998-05-01 22:26:54 +00:00
thorpej
b3cdc88a22 Fix some whitespace. 1998-05-01 05:22:16 +00:00
ross
d38d75c9fb Include net/route.h 1998-04-30 08:27:59 +00:00
ross
1e075b072d Rewrite active_pmap() and again kill the reborn curproc bug. 1998-04-30 08:27:00 +00:00
mjacob
de4d1c62af pretty much redo interrupt code- now handles shared interrupts and solves the buspin int problem 1998-04-30 04:31:19 +00:00
mjacob
e3904356a4 do some mbs before a config read/write 1998-04-30 04:25:22 +00:00
thorpej
1686aca01d Pull in opt_gateway.h as appropriate. 1998-04-29 23:11:00 +00:00
thorpej
9e97d1cc17 Define Pyxis Interrupt Mask and General Purpose Output registers. 1998-04-29 03:09:26 +00:00
thorpej
47a53b61ec Add the DEC 550 Personal Workstation slot. 1998-04-29 02:41:41 +00:00
thorpej
371b1a7fb7 Define the DEC 550 Personal Workstation (Miata) systype. 1998-04-29 02:39:24 +00:00
thorpej
829fa05638 Ignore any `-' characters that might have been passed in the boot flags. 1998-04-29 02:13:51 +00:00
thorpej
a152517daa Add interrupt counter space for the DEC EB64+, and fix a misplaced 
counter comment in the kn300 interrupt counters.
 1998-04-29 00:34:06 +00:00
thorpej
28b467b65b Add support for the DEC EB64+. 1998-04-29 00:24:59 +00:00
thorpej
23a168699c Build EB64+ PCI support if DEC_EB64PLUS is configured. 1998-04-29 00:24:28 +00:00
thorpej
861c7a7e2d Add a stub pckbc_machdep_cnattach() which simply returns an error. This 
function is meant to glue the new pckbd driver to the old console code
on ports which use the old PC-style console code.  This will eventually
be purged when all of the old legacy consoles have gone away.
 1998-04-28 19:14:27 +00:00
thorpej
4ccb48a525 Try (again) to get the chip number right for Alcor and Pyxis, using the 
following (iffy) hueristic:

	CIA revision 1   -> 21171
	CIA revision 2   -> 21172
	CIA revision > 2 -> 21174
 1998-04-28 18:11:35 +00:00
thorpej
b217194508 Fix the semantics (and the comment describing them) of pmap_update(). This 
function is intended to process any deferred pmap operations, and is not
meant as a general means of flushing the TLB.  Since this pmap module does
not defer any operations, make pmap_update() do nothing.
 1998-04-27 19:17:16 +00:00
thorpej
30188853dc Increase the efficiency of pmap_l{2,3}pte() somewhat, by allowing the 
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
kleink
a53c1863fe Provide definitions for intptr_t and uintptr_t, signed resp. unsigned integral 
types large enough to hold any pointer.
 1998-04-27 17:39:10 +00:00
drochner
7f77474219 Oops, forgot to delete. It's in dev/pci now. 1998-04-26 11:57:00 +00:00
mjacob
384418e4b7 "Whitespace" does not mean uncommenting a reference to a file that does not, as yet, exist in the tree 1998-04-26 05:18:50 +00:00
thorpej
b6eff278f2 Fix some whitespace lossage. 1998-04-25 00:12:44 +00:00
drochner
660e718e2e Drivers for PC-like console devices are MI now. 1998-04-24 20:05:54 +00:00
thorpej
6f3b521cd5 Whitespace sanity. 1998-04-24 18:18:41 +00:00
mjacob
6cd64be0b6 fix minor typo 1998-04-24 01:25:18 +00:00
thorpej
2b6154a68c Add PCI IDE. 1998-04-18 01:19:40 +00:00
thorpej
792e89a201 Add PCI IDE goop. 1998-04-18 01:19:08 +00:00
thorpej
4fc79b8fd3 First cut at PCI IDE compat interrupt support for the EB164 systype. 
PCI IDE is found on the AlphaPC 164SX's Cypress PCI-ISA bridge.
 1998-04-18 01:18:37 +00:00
thorpej
574b87a792 Initialize the PCI IDE compat interrupt PCI method to NULL; PCI IDE 
compat interrupts are not currently supported on these platforms.
 1998-04-18 01:12:23 +00:00
thorpej
78c7ebb2d0 Add a second Alpha-specific pci_chipset_tag_t method for establishing 
PCI IDE compat interrupts.  Note that this function is optional, and
platform-specific code may initialize the pointer to NULL.
 1998-04-18 01:10:54 +00:00
thorpej
a5f006fb5f Fix a typo. 1998-04-18 01:09:20 +00:00
thorpej
783382095c Machine-dependent bits for PCI IDE. This redirects PCI IDE compat interrupt 
goop to the appropriate platform-dependent code.
 1998-04-18 01:08:52 +00:00
mjacob
e77859a612 Hmmm... handle the case where there is no keyboard configured (panic 
if the console selection is asking for it). Also add the stuff that
was missing from dec_kn300.
 1998-04-17 02:45:19 +00:00
thorpej
815703e5ec Make function names in printfs and panics consistent. 1998-04-16 19:50:55 +00:00
thorpej
a048ee73ca Fix a whitespace botch. 1998-04-16 19:40:56 +00:00
thorpej
2615a1d8d3 Allow device 8 (the SIO) to have its interrupt mapped; there might be 
a PCI IDE controller on one of the PCI-ISA bridge's functions (e.g.
AlphaPC 164SX).
 1998-04-16 19:24:24 +00:00
drochner
3cc1fe831c count allocated screens correctly 1998-04-16 12:52:42 +00:00
thorpej
c72ac312a7 Add pcppi/spkr drivers, and use DHCP for NFS boots. 1998-04-16 04:11:50 +00:00
thorpej
f92ae39153 Make this compile if a Rawhide isn't configured. 1998-04-16 04:04:15 +00:00
mjacob
512e80082b add an AlphaServer 4100 Specific config file 1998-04-15 21:53:25 +00:00
mjacob
a8d3df00ed oops- add missing include 1998-04-15 21:42:24 +00:00
mjacob
afeea01bbd add back in display console stuff 1998-04-15 21:29:03 +00:00
drochner
b7c6c315ea convert to new wscons 
(pcppi->pckbc, pms->psm, wscons->wsdisplay)
 1998-04-15 21:19:21 +00:00
drochner
b98513c4ff convert to mi wscons 1998-04-15 21:15:08 +00:00
drochner
b9d78308c1 tell drivers that this port knows about the mi wscons stuff 1998-04-15 21:12:45 +00:00
drochner
534775fe76 explicitely initialize console keyboard 1998-04-15 21:06:46 +00:00
drochner
c5ea534f57 Switch the console to polling mode before accessing the keyboard with 
interrupts disabled.
 1998-04-15 20:51:10 +00:00
drochner
fba6e5e23a update for new mi wscons, add ISA speaker 1998-04-15 20:48:52 +00:00
drochner
584f3e8aa0 Adapt PCI console selection to new mi drivers. 1998-04-15 20:46:34 +00:00
drochner
971dd06182 Adapt ISA console selection ti new mi drivers. 
(was broken anyway, a "++" was missing somewhere)
 1998-04-15 20:43:07 +00:00
mjacob
70e72d5545 redo misleading comment (thanks, soren) 1998-04-15 20:37:39 +00:00
drochner
90fc55bdf9 use mi wscons and device drivers 1998-04-15 20:35:37 +00:00
thorpej
f82e238b10 Don't need "delaybah" in the attach args anymore. 1998-04-15 20:11:10 +00:00
thorpej
ba1ef83a1e Don't use the ISA `delay port', since it no longer exists. 1998-04-15 20:10:52 +00:00
mjacob
bd2e0fee32 delay handle was removed 1998-04-15 19:49:19 +00:00
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
mjacob
66194d05bc Do a more complete job of figuring out what kind of DWLP? we have- figure 
out how much s/g ram is available. Can't really use the 128K entry S/G
ram yet- but I'll fix that later. More importantly, add in a dwlpx_iointr
handler that will try and figure out what the DWLPX error is and at
least print out what is happening- I actually found it useful in S/G
entry debugging as it could tell me that I had some bad S/G entries.
 1998-03-23 06:38:10 +00:00
mjacob
51ba315ba2 Slightly restructure interrupt handling to accomodate the addition 
of a dwlpx_iointr vector.
 1998-03-23 06:32:39 +00:00
mjacob
7c83bc0da6 Prepare for handling multisized S/G maps. Specify dwlpx_iointr function. 1998-03-23 06:31:54 +00:00
jonathan
d3d99a28c9 Update #ifdef'ed-out changes from pmax : 
* Add more #ifdef pmax/#endif, #ifdef alpha/#endif where appropriate.
    Config and heade files need more work (or replacement)
  change TK_NOTYET to HAVE_RCONS
  change commented-out /* && cn_tab.cn_screen */ to && raster_console()
  * Add DDB hooks.
  * Note where Alpha console ignores carrier on consoles.
  * Add pmax-derived console tty-size code inside HAVE_RCONS
  * Fold in gross pmax rcons-input hooks, inside HAVE_RCONS

Untested, but whitespace/ifdef only,  cross-compiles OK,
preprocessing shows no significat differences (famous last words)
 1998-03-22 08:24:52 +00:00
thorpej
a5260cbda0 Use atomic set/clear bits in pmap_activate()/pmap_deactivate(). 1998-03-22 07:27:54 +00:00
thorpej
fcfe2f1539 Implement a set of `atomic' (using load-locked and store-conditional) 
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
thorpej
9db8ae93c8 - The pmap now includes support for ASNs. We no longer need to flush 
the TLB and I-cache in the SWITCH_CONTEXT macro.
- Right after switching to proc0's newly-created context at startup time,
  flush the TLB and I-cache; this is the only place where it's not done
  automatically.
- Fix a nasty bug in a critical section of cpu_switch(); change the
  pmap_activate -> SWITCH_CONTEXT -> pmap_deactivate sequence to
  pmap_deactivate -> pmap_activate -> SWITCH_CONTEXT.  This prevents
  erroneously marking a pmap inactive if switching to a process that
  shares it's address space (and thus its pmap) with the oldproc!  Noticed
  by Chris Demetriou.
 1998-03-22 05:46:02 +00:00
thorpej
c0cc1ed476 Implement support for Address Space Numbers, greatly reducing the number 
of TLB and I-cache flushes, significantly speeding up context switches.

Once again, many thanks to Chris Demetriou and Ross Harvey for code
review and debugging assistance!
 1998-03-22 05:41:37 +00:00
thorpej
a8d86e5a7c Replace PMAP_ASNGEN_INVALID with PMAP_ASN_RESERVED. 1998-03-22 05:39:50 +00:00
mjacob
86b6520e41 more TS_WOPEN to tp->t_wopen changes 1998-03-21 23:36:19 +00:00
mycroft
0dae91d9af Eliminate uses of TS_WOPEN in hard-wired devices. 1998-03-21 22:52:59 +00:00
mjacob
34f87569b9 add some error defintions 1998-03-21 22:02:42 +00:00
thorpej
66d8f5b544 sync systypes w/ <machine/rpb.h> 1998-03-20 21:48:21 +00:00
thorpej
63c73f94e3 Add a few more systypes. 1998-03-20 21:48:03 +00:00
thorpej
0f95ffdc1d Nuke swpctxt(); it's only used by the Mach pmap, which we will only ever 
use for reference.
 1998-03-19 06:44:25 +00:00
thorpej
003c50d1d5 Add a macro to invalidate the TLB for a given pmap/va pair. TLB 
invalidation algorithm:

	if (old mapping had PG_ASM set || pmap is active) {
		TIBS(va);
		if (also sync I-stream)
			imb();
	}

The check for "old mapping had PG_ASM" will get all kernel mappings (since
kernel mappings always have PG_ASM set).

This allows us to remove the bogus check for the kernel pmap in
active_pmap() - do so.

Use the new TLB invalidation macro whenever such action is needed.
 1998-03-18 23:55:25 +00:00
thorpej
15adb17803 Eliminate the last argument from pmap_remove_mapping(); it makes its own 
decisions about TLB invalidation.
 1998-03-18 23:11:44 +00:00
thorpej
7ee4af11a7 Change active_pmap() to use the CPU mask (XXX and check for kernel pmap 
as well, until some other changes are made).  Nuke active_user_pmap(),
and change the places that used it to use active_pmap() instead (as well
as make some DIAGNOSTIC consistency checks).
 1998-03-18 22:50:50 +00:00
thorpej
605472f676 Optimize out a TLB invalidation in a common case of pmap_enter(): if 
the PTE was previously invalid, no TLB invalidation is necessary because:

	(1) when a PTE is invalidated, its entry is flushed from the
	    TLB

	(2) the PALcode won't install an invalid PTE into the TLB.
 1998-03-18 22:13:58 +00:00
thorpej
cfdf9a95ad Keep track of which CPUs are using a pmap by setting/clearing bits 
in the pmap's CPU mask in pmap_activate()/pmap_deactivate().
 1998-03-18 21:57:03 +00:00
thorpej
43614761e3 In cpu_exit() deactivate the address space before freeing the vmspace 
structure.  We will continue to run on this context (which is the
global Lev1map at this point) right up until we switch to proc0's
context in switch_exit().
 1998-03-18 20:38:07 +00:00
thorpej
87eb2cfded Don't call pmap_deactivate() if we jumped into the middle of cpu_switch() 
from switch_exit(), since by this time, the vmspace will have already
been deactivated and freed.
 1998-03-18 20:36:13 +00:00
thorpej
b637a998f4 Add ASN housekeeping and a CPU mask to the pmap. 1998-03-18 19:39:23 +00:00
thorpej
961a955498 Move the "are we active" macros out of the header file. 1998-03-18 19:27:46 +00:00
thorpej
d37acae24c Add a DIAGNOSTIC checks for the kernel pmap in pmap_create_lev1map() 
and pmap_destroy_lev1map().  Correct a comment in another DIAGNOSTIC
panic.
 1998-03-18 19:21:50 +00:00
thorpej
06b49b8f3e Change a couple of assert()s to DIAGNOSTIC panics. 1998-03-18 19:12:57 +00:00
thorpej
438599b408 Correct a comment in pmap_bootstrap(). 1998-03-18 19:04:42 +00:00
thorpej
56e004c995 Pass the max ASN from the HWRPB to pmap_boostrap(). 1998-03-18 19:02:49 +00:00
thorpej
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
bouyer
9f50fca1fd Add commented out "options FFS_EI" 1998-03-18 16:34:41 +00:00
thorpej
9c1e8fc2ed Implement the PMAP_NEW interface for UVM. 1998-03-17 05:15:24 +00:00
thorpej
1477f77353 Properly depend on the PMAP_NEW option. 1998-03-17 05:00:18 +00:00
thorpej
6bbfd3e9ff Use pmap_kenter_pa() in _bus_dmamem_map() if PMAP_NEW. 1998-03-17 04:59:36 +00:00
thorpej
f8cff5ab23 Add a software PTE bit that indicates that a va -> pa mapping was entered 
in the physical->virtual list.
 1998-03-17 04:53:43 +00:00
thorpej
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
thorpej
4d8723232d Garbage-collect a bunch of constants that were inherited, but are no 
longer necessary or make sense.
 1998-03-12 07:28:07 +00:00
thorpej
bd3c0e36cf Garbage-collect this a bit. 1998-03-12 06:47:11 +00:00
thorpej
00a597fe92 Use vm_page_alloc1() and vm_page_free1() as appropriate. 1998-03-12 06:27:36 +00:00
thorpej
1f8d640c4b Bump maxusers to 64. 1998-03-12 06:04:47 +00:00
thorpej
6e6e2d7ebf Dump maxusers to 32. 1998-03-12 06:04:31 +00:00
thorpej
d9a1f8ba36 Adjust the default and low-bound maxusers, now that the pmap can deal. 1998-03-12 06:04:14 +00:00
thorpej
dfe0937a7e If not DEBUG, use the Virtual Page Table to get the PTE for kernel mappings 
in pmap_enter() and pmap_emulate_reference().
 1998-03-12 02:59:22 +00:00
thorpej
30766180a3 Nuke these; they are long-since obsolete. 1998-03-12 01:28:01 +00:00
thorpej
152a4bfa60 Increase the maximum userspace address to 4TB. Leave the stack at 8G 
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
thorpej
e046925c3a Massive cleanup and partial rewrite of the NetBSD/alpha pmap module. 
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
thorpej
900e1c90bd Nuke ALPHA_STSIZE and ALPHA_MAX_PTSIZE. Add macros to compute and operate 
on segments mapped by L1 and L2 PTEs.
 1998-03-12 01:21:21 +00:00
thorpej
7225aae835 Move check for user-pmap-still-using-Lev1map from pmap_enter_ptpage() 
to pmap_enter().
 1998-03-09 22:31:23 +00:00
thorpej
daa9cfae50 Don't do the Segtabzero-for-dev-zero hack. 1998-03-09 20:43:28 +00:00
thorpej
e456fc0538 Simplify/speed up pagemove() somewhat by using the Virtual Page Table. 1998-03-09 20:17:03 +00:00
thorpej
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
thorpej
b3d7fd8f3f Just use vtophys() to get the PCB phys addr. 1998-03-07 04:20:45 +00:00
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
cgd
25d056473c Clean up kernel initialization. Use the bootinfo structure (or innate 
knowledge) earlier, and gather all information needed earlier.  Mark the
init code carefully re: when it can print stuff out, when it can expect
the firmware to stop working, etc.  Be more careful about using the PROM
console and other PROM facilities, and hint that in the future all use
of firmware/boot program callbacks by the kernel should go away (since
the world may not be mapped the way the firmware/boot program wants!).
 1998-02-13 02:09:03 +00:00
thorpej
b22ad9fe1a Define a lookup table for Alpha platform variation names. 1998-02-13 01:29:09 +00:00
thorpej
bdc328cb13 Use the platform family name in alpha_unknown_sysname(). 1998-02-13 00:27:37 +00:00