CVS commit: src/sys/arch/sparc64/sparc64

["matthew green" <mrg%netbsd.org@localhost>]

Module Name:    src
Committed By:   mrg
Date:           Mon May 16 21:28:06 UTC 2022

Modified Files:
        src/sys/arch/sparc64/sparc64: cache.h locore.s trap.c

Log Message:
try to handle ultrasparc III* "fast ecc error" traps.

i had a sunblade 2500 reset with this trap recently, and the
manual says it should have been recoverable.  in particular,
the US IIIv2 manual says in section 12.4.4.2 that the i-cache
won't see this data ever (so nothing needed there), and that
the d-cache needs to be disabled, and all the entries flushed,
and then re-enabled.

tested with a "trap 0x70" from kernel space, that trap.c
converted the "0x170" back to "0x70" (with an ADVANCE).  this
code not commited.


To generate a diff of this commit:
cvs rdiff -u -r1.30 -r1.31 src/sys/arch/sparc64/sparc64/cache.h
cvs rdiff -u -r1.427 -r1.428 src/sys/arch/sparc64/sparc64/locore.s
cvs rdiff -u -r1.193 -r1.194 src/sys/arch/sparc64/sparc64/trap.c

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