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formerly, to free up bandwidth in a resource, we could just change the pointer in that resource but at the same time the pipeline stages had visibility to see what happened to a resource request. Now that we are recycling these requests (to avoid too much dynamic allocation), we can't throw away the request too early or the pipeline stage gets bad information. Instead, mark when a request is done with the resource all together and then let the pipeline stage call back to the resource that it's time to free up the bandwidth for more instructions *** inteface notes *** - When an instruction completes and is done in a resource for that cycle, call done() - When an instruction fails and is done with a resource for that cycle, call done(false) - When an instruction completes, but isnt finished with a resource, call completed() - When an instruction fails, but isnt finished with a resource, call completed(false) * * * inorder: tlbmiss wakeup bug fix
This is release 2.0_beta6 of the M5 simulator. For detailed information about building the simulator and getting started please refer to http://www.m5sim.org. Specific pages of interest are: http://www.m5sim.org/wiki/index.php/Compiling_M5 http://www.m5sim.org/wiki/index.php/Running_M5 Short version: 1. If you don't have SCons version 0.96.91 or newer, get it from http://wwww.scons.org. 2. If you don't have SWIG version 1.3.28 or newer, get it from http://wwww.swig.org. 3. In this directory, type 'scons build/ALPHA_SE/tests/debug/quick'. This will build the debug version of the m5 binary (m5.debug) for the Alpha syscall emulation target, and run the quick regression tests on it. If you have questions, please send mail to m5-users@m5sim.org WHAT'S INCLUDED (AND NOT) ------------------------- The basic source release includes these subdirectories: - m5: - src: source code of the m5 simulator - tests: regression tests - ext: less-common external packages needed to build m5 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.tar.bz2. This file can he downloaded separately. 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-users@m5sim.org