Commit Graph

14 Commits

Author SHA1 Message Date
archie
60d13c7a9d The "easy" fixes for compiling the kernel -Wunused: remove unreferenced static
and local variables, goto labels, and functions declared but not defined.
1998-12-07 21:58:50 +00:00
bde
1576dfe2be Fixed disordering of *cam* and splsoftvm. 1998-02-01 22:04:58 +00:00
gibbs
94a1492f22 Addition of splsoftvm and a VM SWI to handle bus dma related callbacks.
This SWI may be useful for other, defered, VM tasks.
1998-01-15 07:34:01 +00:00
fsmp
c462c9c658 Added a couple short-term debugs and a fix to the SPIN_MAX variable.
Debugs are an attempt to ferret out the PUSHDOWN_LEVEL_3 deadlock.
1997-09-28 19:34:48 +00:00
fsmp
bc20671bb8 Added a missing comma for the INTR_SPL case. 1997-09-27 20:07:58 +00:00
gibbs
e1b0aaaa76 aha1542.c aic6360.c cy.c fd.c ft.c
if_ie.c if_wl.c if_zp.c isa.c isa_device.h
labpc.c mcd.c ncr5380.c scd.c seagate.c si.c
sio.c tw.c ultra14f.c wcd.c wd.c:

	Update for changes in the callout interface.

apic_vector.s icu_vector.s ipl.s ipl_funcs.c:

	Add CAM software/hardware interrupt support.
1997-09-21 21:41:49 +00:00
fsmp
877f33cf60 General cleanup of the lock pushdown code. They are grouped and enabled
from machine/smptests.h:

#define PUSHDOWN_LEVEL_1
#define PUSHDOWN_LEVEL_2
#define PUSHDOWN_LEVEL_3
#define PUSHDOWN_LEVEL_4_NOT
1997-09-07 22:04:09 +00:00
bde
4f873bc427 Removed unused #includes. 1997-09-01 02:08:42 +00:00
fsmp
13fe237edc Support for the new FAST_HI algorithm, enabled.
Preliminary support for the INTR_SIMPLELOCK algorithm, disabled.
Note that this code is NOT ready.
1997-08-29 18:45:23 +00:00
fsmp
30f7c30078 A clean fix for the spl "deadlock before smp_active" problem.
Added a new variable, 'bsp_apic_ready', which is set as soon as the bootstrap
CPU has initialized its local APIC.  Conditionalize the GENSPLR functions
to call ss_lock ONLY after bsp_apic_ready is TRUE;  This should prevent
any problems with races between the time the 1st AP becomes ready and the
time smp_active is set.
1997-08-24 20:33:32 +00:00
fsmp
465fd5fe19 Fix a deadlock caused by one of the spl functions being called before
ss_lock() can run.

Noticed by:	dave adkins <adkin003@gold.tc.umn.edu>
1997-08-24 17:26:37 +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
2c414e3eff Preperation for moving cpl into critical region access.
Several new fine-grained locks.
New FAST_INTR() methods:
 - separate simplelock for FAST_INTR, no more giant lock.
 - FAST_INTR()s no longer checks ipending on way out of ISR.
sio made MP-safe (I hope).
1997-08-20 05:25:48 +00:00
peter
ea8d17534e Bruce's original implementation of the splxxx() routines, but as C code
rather than inlines.  These are compiled with -fomit-frame-pointer and
work out pretty close to the original routines, but it might be a fraction
slower.  The reason for doing this is to prevent the SWI_* and HWI_* values
from being compiled into drivers and lkms etc which is one of the things
that prevents the same lkm from being used on both SMP and UP kernels.

This gives us a lot more scope for experimenting with the splxxx
implementaton for SMP parallelism etc.

Reviewed by: bde
1997-05-31 08:57:05 +00:00