Commit Graph

411 Commits

Author SHA1 Message Date
cgd 8e85aac1ce move pci/pci_machdep.h to include/pci_machdep.h. (can't do it via
repository copy because alpha already had an include/pci_machdep.h in
the attic.)
1999-03-19 03:40:46 +00:00
perry 02a2323b29 ovbcopy->memmove 1999-03-12 22:56:21 +00:00
perry a92175a153 nuke ovbcopy 1999-03-12 22:54:58 +00:00
mjacob 1611b4799f Gronk. DWLPX comment in a MCPCIA file. 1999-02-17 03:17:17 +00:00
thorpej 02d221f94a Fix printf format problems on Alpha. 1999-02-12 06:25:13 +00:00
thorpej db631acd8a Fix printf format problems on Alpha. 1999-02-12 06:07:52 +00:00
ross d963824bdc #include <machine/intrcnt.h> 1998-11-19 02:35:39 +00:00
ross bc9cb58205 Fix interrupt map for baseboard bridge. 1998-11-19 02:33:37 +00:00
mjacob 82b48f66b6 If NSIO not defined, compile errors. 1998-10-31 23:51:05 +00:00
ross e43333b7e7 Move if_ade* from alpha/pci/ to alpha/a12/ 1998-09-24 05:36:05 +00:00
ross 86f044d10e Track changes elsewhere in the PCI interface. 1998-09-23 21:20:55 +00:00
ross 55714d5b34 Update for vm_offset_t, vaddr_t sweep. 1998-09-23 21:17:17 +00:00
thorpej 1df7dffd26 Nuke an unused variable. 1998-09-01 21:28:04 +00:00
cgd d58173741d kill the last remnants of __BROKEN_INDIRECT_CONFIG. (only the pica port
used it, and it's non-working and apparently slated for replacement.)
1998-08-31 22:28:04 +00:00
cgd 3110e22945 use current bus_space interface names for barrier ops 1998-08-30 23:29:10 +00:00
thorpej c529c40718 Normalize the copyright notice on this file. 1998-08-15 20:42:25 +00:00
thorpej d5df55112a vm_offset_t -> {paddr_t,vaddr_t}, vm_size_t -> vsize_t 1998-08-14 16:50:00 +00:00
thorpej 8eeb95fce4 Implement pci_intr_disestablish(). 1998-08-01 20:25:12 +00:00
thorpej 92fa3a68ad In sio_intr_disestablish, also make sure that IRQs 0, 1, 8, and 13
default to edge-triggered, just like in the setup.
1998-08-01 19:38:29 +00:00
thorpej 0b60fda7c8 Implement sio_intr_disestablish(), and ensure that an initially-enabled
interrupt is never disabled and an initially-level-triggered interrupt
never becomes untyped.
1998-08-01 18:54:21 +00:00
thorpej f948e430bb Provide a hook for bypassing space accounting, needed to support ISA PnP
for now.
1998-07-31 04:37:02 +00:00
thorpej eb32016a95 Split up using BWX for PCI config and bus access. Default to using BWX for
the former, but not the latter.  Hopefully, this will address some problems
people have been experiencing w/ some devices on Pyxis systems when BWX
is used for bus access.  (If it's not used for PCI config access, we can
get fatal machine checks while probing behind PCI-PCI bridges!!)
1998-07-29 01:28:44 +00:00
mjacob a5e7f763c2 minor tweak, and example of how to do error insertion 1998-07-08 00:58:09 +00:00
mjacob 275fb86f8d add some error handling definitions 1998-07-08 00:40:18 +00:00
thorpej de83dce0de On second thought, call that like the rest of the shared intr functions. 1998-07-07 22:24:38 +00:00
thorpej 1ddd528346 Fix typi. 1998-07-07 22:02:57 +00:00
thorpej e82fc7d3cd The Pyxis core logic in the 164SX and 164LX seems to have problems with
stray interrupts.  Do what Digital UNIX (formerly DEC OSF/1) does; just
ignore strays.
1998-07-07 21:49:47 +00:00
thorpej ca73507d0b The Pyxis core logic in the Miata seems to have problems with stray interrupts.
Do what Digital UNIX (formerly DEC OSF/1) does; just ignore strays.
1998-07-07 21:47:49 +00:00
thorpej be83de18fd Use ALPHA_SHARED_INTR_DISABLE() to test if a shared interrupt should
be disabled after a stray.
1998-07-07 21:44:57 +00:00
jonathan 011f2bda08 defopt NS, NSIP. 1998-07-05 06:49:00 +00:00
jonathan 3751946b97 defopt INET, NETATALK. 1998-07-05 00:51:04 +00:00
thorpej 02b767eee5 Take a stab at EB66 support. An EB66 is basically an EB64+ with a
21066 LCA instead of a 21064 + APECS.
1998-06-27 10:10:51 +00:00
thorpej dff0b84aba Oops, forgot option header. 1998-06-27 08:59:03 +00:00
ross 50604bf85b Kill off some EVCNT_COUNTERS calls, since [A] it has to be rewritten anyway
before it can be useful, and [B] #ifdefs do not belong at every call site,
a common API should be defined and the implementations conditionalized, not
the calls. Duhh.

Also, remove the initial XXX mystery_icu debugging code.
1998-06-26 21:59:46 +00:00
ross a0f70c580c New platforms: Mikasa and Mikasa/Pinnacle, aka Pinkasa.
Like the 1000A, the AlphaServer 1000 has a daughtercard assembly that
integrates the CPU and core logic, so these can be ev4/apecs or ev5/cia.
New systype, and, sigh, another way of doing interrupts and another
mystery icu.

Kill off some EVCNT_COUNTERS calls, since [A] it has to be rewritten anyway
before it can be useful, and [B] #ifdefs do not belong at every call site,
a common API should be defined and the implementations conditionalized, not
all the calls. Duhh.
1998-06-26 21:45:56 +00:00
thorpej 78d7f07efd Very preliminary support for the Tadpole/DEC AlphaBook. These are basically
AXPpci33 machines + power management and a Cirrus PCI-PCMCIA controller.

There is currently no support for the power management facilities, and
the PCI-PCMCIA controller driver needs some work, but this should boot
and run from disk.
1998-06-26 05:42:34 +00:00
ross 63e87b1a8e New platforms: Noritake, Pintake, and Corelle. Sometimes these are ev4/apecs,
sometimes they are ev5/cia.
1998-06-24 01:38:59 +00:00
ross 49d5ae18ba Call pci_1000a_pickintr() like on other platforms, but for 1000a expand
the iot, memt, and pc in the call so that pci_1000a_pickintr() (and the
other routines in that module) do not need to be aware of the core logic
type just to pass down memory and I/O space tags or to call the decompose
function.
1998-06-24 01:32:06 +00:00
thorpej e2ebc10c2d Duuuh! Align the SGMAP page tables to 32K, not 32M. 1998-06-23 02:31:05 +00:00
thorpej 02182100df Use config_defer(). 1998-06-09 18:49:33 +00:00
thorpej 8dedb90f13 The ISA chipset must persist; it's required after autoconfig time. 1998-06-08 23:49:05 +00:00
thorpej 14df007174 Oops, don't forget to fill in *addrp. 1998-06-07 00:29:29 +00:00
thorpej 0890af5ca8 Only disable an interrupt line after MAXSTRAYs if there is no handler
attached; we get stray interrupts on PCI devices sometimes, for some
unknown reason.  (Similar problem exists on the 164SX, which also has
a Pyxis.)
1998-06-06 23:29:23 +00:00
thorpej 331a7f56c1 Remove some debugging code no longer relevant now that we have DMA
window chaining.
1998-06-06 23:11:52 +00:00
thorpej eabad6b572 Implement bus_space_{alloc,free}() for swiz PCI I/O space. 1998-06-06 22:44:46 +00:00
thorpej 7a6d646c9b Implement bus_space_{alloc,free}() for BWX bus space. 1998-06-06 22:28:16 +00:00
thorpej 04ba8480ae Use REGVAL64() to frob the Pyxis interrupt mask register. 1998-06-06 20:42:36 +00:00
thorpej 098dd211c7 Define a REGVAL64() for some Pyxis registers. 1998-06-06 20:40:14 +00:00
thorpej 85d08836f1 - Don't call *_dma_init() twice; there's no need to. Just do it in *attach().
- Display Pyxis revision properly.
1998-06-06 01:33:44 +00:00
thorpej c0fa3c6ac4 Don't call *_dma_init() twice; there's no need to. Just do it in *attach(). 1998-06-06 01:33:23 +00:00
thorpej 9331237596 Oops, turn off some debugging printfs. 1998-06-05 21:47:14 +00:00
thorpej bf8523f4e4 - Egads! There are Pyxis "Pass 1" chips that do not have the DMA bug!
Use the check recommended by the Digital Workstation engineers; look
  for Miata 1 systems (i.e. with Intel SIO).  From Andrew Gallatin.
- Update copyright (Pyxis and BWX).
1998-06-05 19:25:19 +00:00
thorpej f251e3372d Don't attempt to map the PCI IDE interrupt at bus 0 device 11 on the
AlphaPC 164 and AlphaPC 164LX - these are wired to compatibility mode.
1998-06-05 19:15:41 +00:00
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 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
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 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 15c52040a5 Define the ALT_MEM big in the CIA revision register. 1998-06-03 22:19:08 +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
drochner 0c05b92da1 pull in new PC display headers 1998-05-28 16:59:31 +00:00
matt 66e7b8998f Only disable stray interrupts if there is no interrupt handler attached 1998-05-24 19:09:57 +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
thorpej 0cb3acc9ae Correct a small, but fatal, typo. 1998-05-21 23:38:04 +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 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 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 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 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 9e97d1cc17 Define Pyxis Interrupt Mask and General Purpose Output registers. 1998-04-29 03:09:26 +00:00
thorpej 28b467b65b Add support for the DEC EB64+. 1998-04-29 00:24:59 +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 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
mjacob 6cd64be0b6 fix minor typo 1998-04-24 01:25:18 +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
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 584f3e8aa0 Adapt PCI console selection to new mi drivers. 1998-04-15 20:46:34 +00:00
mjacob 6cc22e724e Hmmm- how did that happen- I missed a merge 1998-04-15 01:18:17 +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
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
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
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
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
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
mjacob 34f87569b9 add some error defintions 1998-03-21 22:02:42 +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 58509e699f Add support for UVM. 1998-02-24 07:38:01 +00:00
thorpej 314f40f8d8 We can't count on the CIA revision register telling us if we're a 21171
or 21172, so make the chip/revsion output a little more sane.
1998-02-12 20:43:45 +00:00
thorpej 612aea038c Use the common _bus_dmamap_sync() as the _dmamap_sync method in the
bus_dma_tag_t.
1998-02-04 07:37:28 +00:00
ross 6270ed1711 Add the A12 fast ethernet controller, an if_de.c hacked (prior to
bus_dma's appearance in the tree) to support sram bounce buffers.
When a busified if_de.c appears, this module can join awd.c at the
end of that long walk on a short pier.
1998-01-31 01:43:40 +00:00
ross 12f93343cd Add basic platform support for NetBSD on the Avalon A12. I'm running this
CVS commit on one right now...
1998-01-29 21:42:50 +00:00
thorpej 8df306036a Initialize s/g DMA registers in the same order as the CIA chipset's:
(1) window base
	(2) window mask
	(3) translation base
1998-01-17 22:46:55 +00:00
thorpej 3366b987d0 Put SGMAP-related stuff in the DMA map structure directly, rather than
indirecting through a pointer.
1998-01-17 21:53:52 +00:00
thorpej 63db8935a6 Fix initialization of DMA window 0:
- Make sure the page table is aligned to at least 32k.
- Don't consider the MEMCS signal when checking for a window hit.
1998-01-17 03:43:59 +00:00
thorpej 9554b5a243 Update for "minptalign" argument to alpha_sgmap_init(). 1998-01-17 03:40:32 +00:00
thorpej 399f3639cf Don't assume that we'll be using direct-mapped DMA for PCI. 1998-01-17 03:39:51 +00:00
thorpej 5419debcb7 Adjust for config changes. 1998-01-12 10:21:02 +00:00
thorpej 023044a749 Clean up printing of chipset revision/capabilities. 1997-10-27 01:08:42 +00:00
thorpej 611012d836 Make the copy_region methods do overlapping copies properly. Fixes
port-alpha/4216 (Chris Demetriou).
1997-10-25 01:21:57 +00:00
cjs c44bfc9eae Make compile without DIAGNOSTIC set. 1997-10-14 06:22:02 +00:00
thorpej 0c2efd7025 Add a "scrollskip" member to wscons_emulfuncs (XXX even though it's not
a function) which specifies how many lines will be skipped when scrolling
up when the bottom of the screen is reached.  Dumb framebuffers skip 10
lines (as before) because the copies are s ... l ... o ... w, but it's
silly to skip 10 lines on VGA, since the copies are much faster, so we
only skip one in that case.
1997-09-25 01:31:53 +00:00
thorpej 15e10104d5 Define the BWX-capable regions of the CIA chipset's address space (mem,
i/o, pci config space mode 0, pci config space mode 1) and the CIA
REV and CNFG CSRs.
1997-09-17 01:35:34 +00:00
thorpej 879c4c5cf4 If the CIA revision is >= 2, read the CIA configuration register, and
remember its contents.  Print out a bit of information about the chip,
including whether or not it supports the EV56 BWX instructions.
1997-09-17 01:34:18 +00:00
thorpej 37b8edbeac In addition to MAS_ABT, check TAR_ABT when doing configuration space
reads.  This is necessary because of newer AlphaStation firmware doing
the Wrong Thing with target aborts behind PCI-PCI bridges, much like they
do the Wrong Thing with master aborts.  Reported by Matthias Drochner.
1997-09-15 23:31:15 +00:00
thorpej 12f6c5aba1 Make sure to clear MAS_ABT if we received one. 1997-09-15 23:01:29 +00:00
thorpej 3c3c6a3b31 Use the symbolic name for "received master abort". 1997-09-15 22:35:54 +00:00
thorpej 8ff22715e8 Define bits in the CIA_ERR register. 1997-09-15 22:34:38 +00:00
thorpej f784e8dc15 Apparently, new AlphaStation 500/600 firmware has the same problem with
PCI master aborts as eb164 firmware, so use the same workaround mechanism
on all system types (clear error register's master abort bit, and check
it after accessing configuration space), not just eb164's.

This also fixes a bug on eb164's - when making the Alpha port compile
again, I made an error that caused this to not be used on eb164 systems,
either.  Thanks to Matt Jacob for pointing out this goof.
1997-09-13 05:58:07 +00:00
thorpej ed2ec4869c Update for Chris Demetriou's changes made to the bus.h interface:
- bus_space_copy -> bus_space_copy_region (for consistency)
- "cacheable" argument becomes a "flags" argument instead, with
  BUS_SPACE_MAP_CACHEABLE and BUS_SPACE_MAP_LINEAR flags currently
  defined.
1997-09-06 05:44:07 +00:00
thorpej 1aa35e94d4 s/BUS_BARRIER/BUS_SPACE_BARRIER/g 1997-09-06 05:21:14 +00:00
thorpej 2ecccdc05f Define Status 0 and Status 1 registers. 1997-09-05 02:14:31 +00:00