CVS commit: syssrc

[Allen Briggs <briggs%netbsd.org@localhost>]

Module Name:    syssrc
Committed By:   briggs
Date:           Tue Jun  1 03:40:12 UTC 1999

Modified Files:
        syssrc/sys/arch/mac68k/obio: esp.c

Log Message:
Raise spl4 to spl6 in quick_go--I am now experimenting with interrupts
at levels 5 (sound) and 6 (via1) on the Q700.
Raise splhigh when reading and writing registers.  It's ugly, but it's
possible that we could get an interrupt from a higher-level source,
causing a re-read of a memory location.
This is not good when, e.g., we are reading the interrupt register.
Ideally, we would just raise splhigh() in ncr53c9x_readregs(), but
that's m.i. code, and it may be expensive on other architectures.


To generate a diff of this commit:
cvs rdiff -r1.20 -r1.21 syssrc/sys/arch/mac68k/obio/esp.c

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