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68ac1c6fc3
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206 Commits

Author SHA1 Message Date
bjh21
68ac1c6fc3 Add some infrstructure to support saving FPU state. 2001-01-11 22:03:52 +00:00
bjh21
7424b1f3c1 Grotty hack to attach names to interrupts. 
Should be fixed when I next overhaul this code.
 2001-01-11 14:56:07 +00:00
bjh21
5a91dd00b9 Add "arm" to the "machine" line, so we get files.arm pulled in, and more 
importantly, the arm->arch/arm/include symlink.
 2001-01-10 18:38:37 +00:00
bjh21
84a9223126 Add APCS-32 return instructions, though not used yet. 2001-01-09 12:11:57 +00:00
bjh21
2aa1fb4020 Remove old-style interrupt-counting infrastructure (intrnames/intrcnt). 2001-01-07 19:39:08 +00:00
bjh21
d6bd1012e3 Add facilities for counting interrupts, and a "machine irqstat" command to 
DDB to tell us what's going on.
 2001-01-07 17:01:53 +00:00
bjh21
2b076072d3 Add a "name" argument to irq_establish and friends, in imitation of arm32. 2001-01-07 15:56:01 +00:00
bjh21
6b513dfe29 Remove ioc_irq_establish -- It wasn't serving any useful purpose. 2001-01-07 15:36:34 +00:00
bjh21
fb3dd6b589 ANSIfy. 2001-01-07 15:27:37 +00:00
bjh21
32ad12527c ANSIfy. 2001-01-07 15:00:02 +00:00
bjh21
32ff4eef91 ANSIfy. 2001-01-07 14:28:02 +00:00
bjh21
c730bd06be Un-__P, remove arg names. 2001-01-07 13:48:24 +00:00
bjh21
5c09bd5fc5 Un-__P and remove function arg names. 2001-01-07 13:38:42 +00:00
bjh21
610a127a3d Fix a stupid = vs == bug that prevented the code working usefully at all. 
While I'm here, fix all the other GCC warnings too.
 2001-01-07 00:30:29 +00:00
bjh21
fa64805abd Specify (void) arguments, hence avoiding GCC warning. 2001-01-07 00:07:58 +00:00
bjh21
32c62f1fdb ANSIfy 2001-01-06 13:09:05 +00:00
takemura
c5fd828440 replace 'long long' with int64_t to compile stand alone program with 
compiler other than GCC.
 2001-01-03 10:08:55 +00:00
bjh21
7866e2f2c9 Arrange that the return value of copyin() and friends be provided by 
do_fault(), in preparation for do_fault() being able to get it from
uvm_fault().
 2001-01-01 16:00:42 +00:00
bjh21
bc86e85531 Correct various initial comments, and provide a useful overview of how the 
MEMC works, at the suggestion of chs.
 2000-12-31 16:09:34 +00:00
bjh21
c1ad66d687 Whitespace cleanup. 2000-12-30 13:53:26 +00:00
bjh21
66c70101f3 Add a cache flush to pmap_fault() when it adds a r/w mapping, since there's 
probably an old mapping around that we don't want to get stale.
 2000-12-30 13:42:12 +00:00
bjh21
e9d5e8f1e5 Overhaul v(un)mapbuf: Don't worry about unmapping things (the pmap can handle 
multiple wired mappings now).  Do worry about seeding referenced/modified
information correctly.
 2000-12-30 13:33:15 +00:00
bjh21
e4c6b6f4e5 pmap_kenter_pa(): Seed referenced/modified information correctly. 2000-12-30 13:31:50 +00:00
bjh21
b3eae7d1c8 Since we need to have an aout_machdep.h, we may as well borrow the arm32 one. 2000-12-29 23:08:31 +00:00
bjh21
36f8a8d0f8 Purge vestiges of a.out support. 2000-12-29 23:07:29 +00:00
bjh21
00a01e20d8 Sync with arm32. No functional changes. 2000-12-29 22:42:23 +00:00
bjh21
df10cbcda9 Sync with arm32 (fixes warnings compiling /bin/sh and probably others). 2000-12-29 19:30:34 +00:00
matt
a589927cbc Make identical to arm32 version. (add same parens, use __P, etc.) 2000-12-28 03:55:14 +00:00
matt
f1f4acfb4d Remove reference to CLBYTES 2000-12-28 03:54:15 +00:00
matt
61b05af542 Except for the RCSID, this file is now identical with arm32/include/ansi.h 2000-12-28 03:52:50 +00:00
bjh21
c00a8ab5fd Calculate the required amount of screen memory, rather than just trusting the 
number that RISC OS gives us (which may be far too large).
 2000-12-27 22:13:42 +00:00
bjh21
9822871467 Add a special call to uvm_page_physload to register RISC OS's zero page as 
free at startup.
 2000-12-27 20:43:44 +00:00
bjh21
1b364c5082 pmap_confess() is unused and doesn't work any more. G/C it. 2000-12-27 18:38:50 +00:00
bjh21
c481cdca92 Overhaul of data-abort handling: 
- Make data_abort_address() return the whole affected range, rather than
   just one end.
 - Don't rely on pmap_confess().  Instead, for LDM/STM, behave as if two faults
   had occurred, one at each end of the range.
 - Separate out fault handling into do_fault(), and call it from
   data_abort_handler() (twice) and prefetch_abort_handler().
 2000-12-27 18:35:18 +00:00
bjh21
58e80f030f Two batches of changes: 
1: Cleanup of syscall() -- treat the arguments as an array of register_t
   throughout.  This saves a few casts, and generally makes seeing what's
   going on easier.
2: Be a little more careful in the handling of data aborts on kernel
   addresses: don't use the kernel's map unless the access was actually from
   a kernel mode.  This is how the arm32 data abort handler behaves.
 2000-12-27 16:57:09 +00:00
bjh21
186792c5b7 Use KASSERT for simple assertions. 2000-12-27 16:50:12 +00:00
bjh21
2433e71e6e Medium-sized pmap overhaul: 
- Use UVMHIST for debugging messages, rather than printf
 - Rely on the caller of pmap_enter to tell us how to manipulate referenced/
   modified bits in the kernel pmap.
   [ Suggested by chs -- may need work on the rest of the kernel. ]
 - Split third-stage initialisation out of pmap_create() into pmap_init2().
 - Bug fix: when relocating pv_table, fix up all references to it as well.
 - Bug fix: in pv_release(), if pulling up a pv_entry to the head of the
   list, correct the reference from its pmap.
 2000-12-27 15:16:04 +00:00
bjh21
ce3cd11d08 Unreasonably simple fix for PR#11817: Don't worry about duplicate mappings, 
just get pmap_fault to shove them back in.  Crude, but effective.  Fix inspired
by Chuck Silvers.

This breaks pmap_confess, but it probably deserves to die.
 2000-12-26 23:18:50 +00:00
bjh21
939baa9f0d Follow the herd: Use the MI md_root.c. 2000-12-26 19:55:52 +00:00
itojun
efa2b7073c make mbstate_t bigger (32 -> 128 bytes). 
XXX if you have libc after citrus locale import, please recompile libc,
and your applications that use mbstate_t (rather rare).  really sorry
for the mess.
 2000-12-26 10:35:28 +00:00
bjh21
f1fc4edf08 In pmap_enter(), seed referenced and modified bits from access type passed in. 2000-12-23 23:06:51 +00:00
bjh21
5568314c66 Since the Arc's interrupt layout is fixed, only print IRQ numbers in 
verbose mode.  This helps to ensure the kernel version number doesn't disappear
too quickly.
 2000-12-23 21:49:13 +00:00
bjh21
7cce6a2816 Remove "machine" subcommands that duplicate "show". 
Add "machine bsw" which does a bus_space_write_*().
 2000-12-23 15:18:34 +00:00
bjh21
da1e6b7cfb Don't SIGSEGV a process just because we get KERN_RESOURCE_SHORTAGE. It might 
go away.

Yes, this is a grotty hack.  The right solution is for uvm_fault to be less
pessimistic.
 2000-12-23 15:12:54 +00:00
bjh21
95920110c7 Stub FPU driver -- identifies FPUs and warns they aren't supported. e.g: 
cpu0 (root): ARM2
fpu0 at cpu0: FPPC/WE32206
fpu0: WARNING: FPU type not supported by kernel
 2000-12-23 13:37:02 +00:00
bjh21
85aa3d3b8d G/c unused declarations. 2000-12-23 12:57:55 +00:00
jdolecek
e9e91a0fb5 split off thread specific stuff from struct sigacts to struct sigctx, leaving 
only signal handler array sharable between threads
move other random signal stuff from struct proc to struct sigctx

This addresses kern/10981 by Matthew Orgass.
 2000-12-22 22:58:52 +00:00
bjh21
0c0d8f3775 Support for identifying MAUs attached to EtherLan 200-series cards. 2000-12-22 22:21:37 +00:00
itojun
823498203f populate _BSD_MBSTATE_T_. add warning regarding to rune_t. 2000-12-21 06:03:47 +00:00
bjh21
15d214bd18 Looks like I got the state of the link-detect bit inverted. Fixing that 
gets me working auto-media selection, which is nice.
 2000-12-20 23:08:44 +00:00