Commit Graph

4 Commits

Author SHA1 Message Date
bde
577b83a70e Implemented dynamic registration of software interrupt handlers. Not
used yet.

Use dummy SWI handlers to avoid some checks for null pointers.
1998-08-11 15:08:13 +00:00
fsmp
cdf6bbae17 Removed the "globl" nature of the vec array. This was left over from the
time when icu.s was common between UP and SMP.  It is not necessary for UP
and thus can be removed from icu_ipl.s.
1997-09-02 19:40:13 +00:00
fsmp
618ef60cbd The last of the encapsolation of cpl/spl/ipending things into a critical
region protected by the simplelock 'cpl_lock'.

Notes:

 - this code is currently controlled on a section by section basis with
   defines in machine/param.h.  All sections are currently enabled.

 - this code is not as clean as I would like, but that can wait till later.

 - the "giant lock" still surrounds most instances of this "cpl region".
   I still have to do the code that arbitrates setting cpl between the
   top and bottom halves of the kernel.

 - the possibility of deadlock exists, I am committing the code at this
   point so as to exercise it and detect any such cases B4 the "giant lock"
   is removed.
1997-08-24 00:05:37 +00:00
fsmp
be6c5ef7bc Split vector.s into UP and SMP specific files:
- vector.s		<- stub called by i386/exception.s
 - icu_vector.s		<- UP
 - apic_vector.s	<- SMP

Split icu.s into UP and SMP specific files:
 - ipl.s		<- stub called by i386/exception.s (formerly icu.s)
 - icu_ipl.s		<- UP
 - apic_ipl.s		<- SMP

This was done in preparation for massive changes to the SMP INTerrupt
mechanisms.  More fine tuning, such as merging ipl.s into exception.s,
may be appropriate.
1997-05-26 17:58:27 +00:00