CVS commit: src/sys/arch/x86

[David Young <dyoung%netbsd.org@localhost>]

Module Name:    src
Committed By:   dyoung
Date:           Mon Jul 20 19:11:30 UTC 2009

Modified Files:
        src/sys/arch/x86/include: ipmivar.h
        src/sys/arch/x86/x86: ipmi.c

Log Message:
Overhaul synchronization in ipmi(4): synchronize all access to
device registers with a mutex.  Convert tsleep/wakeup calls to
cv_wait/cv_signal.

Do not repeatedly malloc/free tiny buffers for sending/receiving
commands, but reserve a command buffer in the softc.

Tickle the watchdog in the sensors-refreshing thread.

I am fairly certain that after the device is attached, every register
access happens in the sensors-refreshing thread.  Moreover, no
software interrupt touches any register, now.  So I may get rid of
the mutex that protects register accesses, sc_cmd_mtx.


To generate a diff of this commit:
cvs rdiff -u -r1.9 -r1.10 src/sys/arch/x86/include/ipmivar.h
cvs rdiff -u -r1.38 -r1.39 src/sys/arch/x86/x86/ipmi.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.