Module Name: src
Committed By: christos
Date: Tue Jul 26 03:09:55 UTC 2016
Modified Files:
src/sys/arch/alpha/tc: tc_bus_mem.c
Log Message:
>From Felix Deichmann:
While writing "slhci at tc" support, I noticed TC bus_space functions
for alpha don't work as they should (tc_bus_mem.c). Consideration of
dense vs. sparse space seems problematic, especially for widths < 4.
I found information mainly in
[1] https://web-docs.gsi.de/~kraemer/COLLECTION/DEC/d3syspmb.pdf
[2]
http://h20565.www2.hpe.com/hpsc/doc/public/display?docId=emr_na-c04623255
and a dirty (but tested) hack based on this is attached as an example.
It would be great if someone could have a look and do a cleaner version
preferably.
Especially the end of ([2] section 12.2.2) provides a summary of which
"instruction" to use for which data width in which space, and possible
side effects (unintentional double reads/writes) in dense space...
To generate a diff of this commit:
cvs rdiff -u -r1.35 -r1.36 src/sys/arch/alpha/tc/tc_bus_mem.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
