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194 commits

Author SHA1 Message Date
Doug Rabson 976a1a2b57 Fix a stupid bug preventing gdb from seeing the right value of 'v0'. 1998-07-26 18:47:47 +00:00
Doug Rabson c99399cccd Fix a stupid bug in the new pmap_remove(). 
Arrange for soft modified/referenced flags to be cleared when a page is freed.
 1998-07-26 18:13:28 +00:00
Doug Rabson 72c36e1413 Fix pmap_enter_quick() to stop it hanging when the level 2 pte exists 
but isn't valid.

Reimplement pmap_remove() to be much more efficient at removing large
stretches of addresses.

As part of reimplementing pmap_remove() fix pmap_protect() so that it stands
a hope of working.
 1998-07-24 09:43:27 +00:00
Doug Rabson b9ca15f807 Add ISA support. 
Remove mcclock hack which was only needed because ISA wasn't done yet.
 1998-07-22 08:34:19 +00:00
Doug Rabson ec0bebbce7 Add some convenience functions for accessing device memory. 
Add a DDB command to allow access to inb/inw/inl from the debugger.
 1998-07-22 08:33:30 +00:00
Doug Rabson 53db2ca0b6 Merge KN20AA support from Andrew Gallatin. 
Add support for device memory access.
Add support for ISA irqs.
 1998-07-22 08:32:17 +00:00
Doug Rabson 31de2a7751 Move the mcclock from root to isa. 1998-07-22 08:30:25 +00:00
Doug Rabson 905f48d3af Add a simple ISA bus. No support for memory mapped devices or DMA as yet. 1998-07-22 08:29:26 +00:00
Doug Rabson dd5f72e1fc Add sio support. 1998-07-22 08:28:24 +00:00
Doug Rabson 68f6efc27f Add platform functions for manipulating PCI irqs. 
Submitted by: Andrew Gallatin <gallatin@cs.duke.edu>
 1998-07-22 08:27:56 +00:00
Doug Rabson 41fc8fe7b9 Add declaration of {aquire,release}_timer2(). 1998-07-22 08:26:23 +00:00
Doug Rabson bb4752537d Add macros and chipset support for accessing device i/o memory on the alpha. 1998-07-22 08:25:39 +00:00
Doug Rabson 515cfabc48 Add KN20AA support. 
Add entries for syscons.
 1998-07-22 08:24:39 +00:00
Doug Rabson 237064085b Tweaks to stop config(8) warnings and to avoid an unfinished experiment of 
mine.

Submitted by: Andrew Gallatin <gallatin@cs.duke.edu>
 1998-07-22 08:23:26 +00:00
Doug Rabson eb7262ea39 Support header for sysbeep() implementation. 1998-07-22 08:21:36 +00:00
Doug Rabson e0fbfbb576 Make ptrace single steps over branches work as intended. 1998-07-22 08:20:57 +00:00
Doug Rabson cbda18ce6e Add support for sio's soft interrupts. 1998-07-22 08:20:15 +00:00
Doug Rabson e17e8bbe72 Support the DEC_KN20AA platform (AlphaStation 500 or 600). 
Submitted by: Andrew Gallatin <gallatin@cs.duke.edu>
 1998-07-22 08:19:39 +00:00
Doug Rabson bba326e18d Merge changes from Andrew Gallatin to support different CIA based platforms. 
Add code to identify and attach either serial or VGA console as appropriate.
 1998-07-22 08:18:34 +00:00
Doug Rabson b50b3bda1d Add code from i386 to support sysbeep(). Doesn't work quite right but it 
makes a noise.
 1998-07-22 08:16:34 +00:00
Doug Rabson e344c90c80 Change siocn{put,get}c to siogdb{put,get}c to allow a serial console on one 
line with serial debugging on another line.
 1998-07-22 08:15:34 +00:00
Doug Rabson 3a4215418c Simplify access to PCI config registers. 1998-07-16 13:38:35 +00:00
Doug Rabson a22401deb1 Make ptrace work. 1998-07-15 20:16:28 +00:00
Doug Rabson 6a5694427a Tweaks for cross-building from NetBSD/alpha. 
Submitted by: Andrew Gallatin <gallatin@cs.duke.edu>
 1998-07-15 20:12:54 +00:00
Doug Rabson 718c0cbefb Add some debug code. 1998-07-15 20:07:33 +00:00
Doug Rabson a6481f0baf An mc146818a clock attached to an isa bus. 1998-07-15 19:21:31 +00:00
Doug Rabson 28c3132268 Linker script for alpha kernel. 1998-07-15 19:19:24 +00:00
Bruce Evans 37889b394a Changed to the C9x draft spelling of the (unsigned) integral type 
suitable for holding object pointers (ptrint_t -> uintptr_t).
Added corresponding signed type (intptr_t).  Changed/added
corresponding non-C9x types for function pointers to match.  Don't
use nonstandard types to implement these types, and don't comment
on them in <machine/types.h>.
 1998-07-14 05:09:48 +00:00
Doug Rabson 52c008e810 Overhaul the spl system so that it actually works properly. 1998-07-12 16:32:10 +00:00
Doug Rabson 8e8c234f4d Don't bother calling pmap_emulate_reference() from cpu_fork(). It isn't 
needed and it panics a DIAGNOSTIC kernel.
 1998-07-12 16:30:58 +00:00
Doug Rabson bb8a6f725b Define option DEC_EB164 1998-07-12 16:28:09 +00:00
Doug Rabson 3a130d871a Add entry for prom console. 1998-07-12 16:27:34 +00:00
Doug Rabson 8777a8098d Add some bits and pieces for my test box. 1998-07-12 16:26:52 +00:00
Doug Rabson d538e9fca6 Update to new interrupt api. 1998-07-12 16:23:19 +00:00
Doug Rabson d19af714d3 Implement CIA interrupts. 
Obtained from: SRM console magic from NetBSD
 1998-07-12 16:17:54 +00:00
Doug Rabson b46e6c4115 Implement intr_create/intr_connect. 1998-07-12 16:16:22 +00:00
Doug Rabson 2895b128c7 Implement promcncheckc. 1998-07-12 16:15:06 +00:00
Doug Rabson a85c203100 Add some debug code. 
Always clear TLB in pmap_activate, even if activating curproc's pmap.
 1998-07-12 16:13:54 +00:00
Doug Rabson 78e3c75746 Add a couple of sysctls and implement sendsig/sigreturn. 
Obtained from: signal code from NetBSD
 1998-07-12 16:10:52 +00:00
Doug Rabson 56abfaf4eb Add some generic interrupt dispatch code. 1998-07-12 16:09:30 +00:00
Doug Rabson cefd88ce75 Add definition of p_switchtime. 1998-07-12 16:08:15 +00:00
Doug Rabson 3b7389bd33 Include opt_ddb.h. 1998-07-12 16:07:43 +00:00
Doug Rabson 323df54807 Hardwire the root disk of my test box for now. 1998-07-12 16:07:05 +00:00
Jordan K. Hubbard d14897d381 Quick and dirty support for Linux's mremap. Not used by anything 
but quake2 AFAIK.

Submitted by:   Luoqi Chen <luoqi@watermarkgroup.com>
 1998-07-10 22:30:08 +00:00
Bruce Evans 1009171eb2 Oops, forgot to modify the pointer-int typedefs from the i386 version. 1998-07-10 02:34:50 +00:00
Bruce Evans 2e480d34aa Added a kernel-only typedef (ptrint_t) giving an integral type that is 
least unsuitable for holding an object pointer.  This should have been
used to fix warnings about casts between pointers and ints on alphas.

Moved corresponding existing general typedef (fptrint_t) for function
pointers from the i386 <machine/profile.h> to a kernel-only typedef
in <machine/types.h>.  Kludged libc/gmon/mcount.c so that it can
still see this typedef.
 1998-07-10 02:27:16 +00:00
Warner Losh f71f5262b1 Add the ability to suspend as well as hibernate to the system. This 
is the kernel part of my commits, the userlevel stuff will be done in
a separate commit.  Add the ability to suspend as well as hibernate to
syscons.  Create a new virtual key like hibernate for suspend.  Update
apm_bios.h to define more apm bios goodies.
 1998-07-06 06:29:07 +00:00
Doug Rabson be90e52a12 Add support for kernel gdb. 1998-07-05 12:24:18 +00:00
Doug Rabson 638ccebd00 Use byte/word access in badaddr if relevant. 1998-07-05 12:22:56 +00:00
Doug Rabson 36ed9b0405 Support channel B as well as channel A. 1998-07-05 12:16:55 +00:00