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14 Commits

Author SHA1 Message Date
Marius Strobl
707085fef9 - There's no need to wrap kdb_active and kdb_trap() in #ifdef KDB as 
they're always available.
- Remove unused variable. [1]
- Add a missing const.
- Sort includes.

Submitted by:	Christoph Mallon [1]
 2009-03-19 20:46:51 +00:00
Marius Strobl
e5858aa9d5 Use the PROM provided SUNW,set-trap-table to take over the trap 
table. This is required in order to set obp-control-relinquished
within the PROM, allowing to safely read the OFW translations node.
Without this, f.e. a `ofwdump -ap` triggers a fatal reset error or
worse things on machines based on USIII and beyond.
In theory this should allow to remove touching %tba in cpu_setregs(),
in practice we seem to currently face a chicken and egg problem when
doing so however.
 2008-09-04 20:52:54 +00:00
Kris Kennaway
0c6913cd9a Correct typos (s/OFERFLOW/OVERFLOW/). 
Reviewed by:	jhb
 2006-01-16 01:35:25 +00:00
Jake Burkholder
2d5d213f82 Allow fast instruction and data access mmu miss traps to be handled by 
user trap handlers.
 2003-04-29 21:30:59 +00:00
Jake Burkholder
4d961d24e1 Greatly improve readability of trap() by using a table to convert between 
trap types and signals to send.  Rearrange KASSERTs to better handle faults
early before curthread is setup, or in the case that it gets corrupted or
set to 0.
 2002-10-25 16:00:47 +00:00
Jake Burkholder
d79083a390 Add a panic stack, which is used as a known good stack when there is 
something wrong with the kernel stack.
Add code to check the kernel stack pointer in various important places
and try hard not to go down in flames if its wrong.
 2002-01-01 20:26:46 +00:00
Jake Burkholder
529110b963 Rename and renumber trap types to comply with the user trap types as 
specified by the sparc abi.  We use numerically higher values for all
internal kernel types.
Remove soft trap types which need to be exposed to userland.  They will
move to utrap.h.
 2001-12-29 07:09:50 +00:00
Jake Burkholder
209cf80d43 Add support for physical address hardware watchpoints. 2001-10-20 16:04:39 +00:00
Jake Burkholder
6df08a9593 Wrap hardware trap types in ifdef _kernel. 2001-09-30 18:51:18 +00:00
Jake Burkholder
cc8b4c0416 Change tf_arg to uintptr_t from void * to reflect the fact that 
non-pointer values may be passed in it.  Add appropriate casts.

The interrupt type is now passed in tf_arg instead tf_type.
 2001-09-03 23:13:42 +00:00
Jake Burkholder
bdb71a81f3 Add a system call trap type and syscall() call request handler. 
Also add support for hardware watch point traps.

Submitted by:	tmm
 2001-08-20 23:43:43 +00:00
Jake Burkholder
8a7de3c054 Add trap types for interrupts. Ad definitions to get the interrupt level 
from the trap type.
 2001-08-10 04:22:24 +00:00
David E. O'Brien
73a4930297 The author isn't a [UC] Regents. Correct the copyright language. 2001-08-09 02:09:34 +00:00
Jake Burkholder
89bf8575ee Flesh out the sparc64 port considerably. This contains: 
- mostly complete kernel pmap support, and tested but currently turned
  off userland pmap support
- low level assembly language trap, context switching and support code
- fully implemented atomic.h and supporting cpufunc.h
- some support for kernel debugging with ddb
- various header tweaks and filling out of machine dependent structures
 2001-07-31 06:05:05 +00:00