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Kevin Lim b84103811d Add some different parameters. The main change is that the writeback count is now limited so that it doesn't overflow the buffer. 
src/cpu/o3/alpha_cpu_builder.cc:
src/cpu/o3/alpha_params.hh:
    Add in dispatchWidth, wbWidth, wbDepth parameters.  wbDepth is the number of cycles of wbWidth instructions that can be buffered.
src/cpu/o3/iew.hh:
    Include separate parameter for dispatch width.
    Also limit the number of outstanding writebacks so the writeback buffer isn't overflowed.  The IQ must make sure with the IEW stage that it can issue instructions prior to issuing.
src/cpu/o3/iew_impl.hh:
    Include separate parameter for dispatch width.
    Also limit the number of outstanding writebacks so the writeback buffer isn't overflowed.
src/cpu/o3/inst_queue_impl.hh:
    IQ needs to check with the IEW to make sure it can issue instructions, and increments the IEW wb counter each time there is an outstanding instruction that will writeback.
src/cpu/o3/lsq_unit_impl.hh:
    Be sure to decrement the writeback counter if there's a squashed load that returned.
src/python/m5/objects/AlphaO3CPU.py:
    Change the parameters to include dispatch width, writeback width, and writeback depth.

--HG--
extra : convert_revision : 31c8cc495273e3c481b79055562fc40f71291fc4
2006-07-05 15:51:36 -04:00
build_opts split off fullsystem and se iprs into two functions to remove lots of #ifs 2006-05-29 16:53:47 -04:00
configs Add help strings for options 2006-06-27 14:58:46 -04:00
docs Updated Authors from bk prs info 2006-05-31 19:26:56 -04:00
ext New directory structure: 2006-05-22 14:29:33 -04:00
src Add some different parameters. The main change is that the writeback count is now limited so that it doesn't overflow the buffer. 2006-07-05 15:51:36 -04:00
util Minor updates. 2006-06-17 22:55:00 -04:00
AUTHORS Update the readme to point people to m5.eecs.umich.edu 2006-06-29 16:52:47 -04:00
LICENSE Remove authors from copyright. 2006-05-28 23:26:15 -04:00
README Update the readme to point people to m5.eecs.umich.edu 2006-06-29 16:52:47 -04:00
RELEASE_NOTES Update the readme to point people to m5.eecs.umich.edu 2006-06-29 16:52:47 -04:00
SConstruct Changes to get OzoneCPU to compile once more. 2006-06-22 23:33:26 -04:00

README 

This is release 2.0 of the M5 simulator.

For information about building the simulator and getting started please refer
to: http://m5.eecs.umich.edu/

Specific Pages of Interest are:
http://m5.eecs.umich.edu/wiki/index.php/Compiling_M5
http://m5.eecs.umich.edu/wiki/index.php/Running_M5

If you have questions, please send mail to m5sim-users@lists.sourceforge.net.

WHAT'S INCLUDED (AND NOT)
-------------------------

The basic source release includes these subdirectories:
 - m5: 
   - src: source code of the m5 simulator
   - test: regression tests
   - ext: less-common external packages needed to build m5
   - system/alpha: source for Alpha console and PALcode

To run full-system simulations, you will need compiled console,
PALcode, and kernel binaries and one or more disk images.  These files
are collected in a separate archive, m5_system_2.0.tar.bz2.  This file
is included on the CD release, or you can download it separately from
Sourceforge.

M5 supports Linux 2.4/2.6, FreeBSD, and the proprietary Compaq/HP
Tru64 version of Unix. We are able to distribute Linux and FreeBSD
bootdisks, but we are unable to distribute bootable disk images of
Tru64 Unix. If you have a Tru64 license and are interested in
obtaining disk images, contact us at m5-dev@eecs.umich.edu.

The CD release includes a few extra goodies, such as a tar file
containing doxygen-generated HTML documentation (html-docs.tar.gz), a
set of Linux source patches (linux_m5-2.6.8.1.diff), and the scons
program needed to build M5.  If you do not have the CD, the same HTML
documentation is available online at http://m5.eecs.umich.edu/docs,
the Linux source patches are available at
http://m5.eecs.umich.edu/dist/linux_m5-2.6.8.1.diff, the scons
program is available from http://www.scons.org, and swig is available from
http://www.swig.org.