Commit graph

8 commits

Author SHA1 Message Date
Marc Orr
bf80734b2c x86 isa: This patch attempts an implementation at mwait.
Mwait works as follows:
1. A cpu monitors an address of interest (monitor instruction)
2. A cpu calls mwait - this loads the cache line into that cpu's cache.
3. The cpu goes to sleep.
4. When another processor requests write permission for the line, it is
   evicted from the sleeping cpu's cache. This eviction is forwarded to the
   sleeping cpu, which then wakes up.

Committed by: Nilay Vaish <nilay@cs.wisc.edu>
2014-11-06 05:42:22 -06:00
Nilay Vaish
3022d463fb ruby: interface with classic memory controller
This patch is the final in the series.  The whole series and this patch in
particular were written with the aim of interfacing ruby's directory controller
with the memory controller in the classic memory system.  This is being done
since ruby's memory controller has not being kept up to date with the changes
going on in DRAMs.  Classic's memory controller is more up to date and
supports multiple different types of DRAM.  This also brings classic and
ruby ever more close.  The patch also changes ruby's memory controller to
expose the same interface.
2014-11-06 05:42:21 -06:00
Nilay Vaish
95a0b18431 ruby: single physical memory in fs mode
Both ruby and the system used to maintain memory copies.  With the changes
carried for programmed io accesses, only one single memory is required for
fs simulations.  This patch sets the copy of memory that used to reside
with the system to null, so that no space is allocated, but address checks
can still be carried out.  All the memory accesses now source and sink values
to the memory maintained by ruby.
2014-11-06 05:41:44 -06:00
Nilay Vaish
7a0d5aafe4 ruby: message buffers: significant changes
This patch is the final patch in a series of patches.  The aim of the series
is to make ruby more configurable than it was.  More specifically, the
connections between controllers are not at all possible (unless one is ready
to make significant changes to the coherence protocol).  Moreover the buffers
themselves are magically connected to the network inside the slicc code.
These connections are not part of the configuration file.

This patch makes changes so that these connections will now be made in the
python configuration files associated with the protocols.  This requires
each state machine to expose the message buffers it uses for input and output.
So, the patch makes these buffers configurable members of the machines.

The patch drops the slicc code that usd to connect these buffers to the
network.  Now these buffers are exposed to the python configuration system
as Master and Slave ports.  In the configuration files, any master port
can be connected any slave port.  The file pyobject.cc has been modified to
take care of allocating the actual message buffer.  This is inline with how
other port connections work.
2014-09-01 16:55:47 -05:00
Emilio Castillo ext:(%2C%20Nilay%20Vaish%20%3Cnilay%40cs.wisc.edu%3E)
01f792a367 ruby: Fixes clock domains in configuration files
This patch fixes scripts related to ruby by adding the ruby clock domain.
Now the L1 controllers and  the Sequencer shares the cpu clock domain,
while the rest of the components use the ruby clock domain.

Before this patch, running simulations with the cpu clock set at 2GHz or
1GHz will output the same time results and could distort power measurements.

Committed by: Nilay Vaish <nilay@cs.wisc.edu>
2014-09-01 16:55:30 -05:00
Nilay Vaish
a20fbdfc23 config: ruby: remove piobus from protocols
This patch removes the piobus from the protocol config files.  The ports
are now connected to the piobus in the Ruby.py file.
2014-03-17 17:40:15 -05:00
Nilay Vaish
7e27860ef4 ruby: route all packets through ruby port
Currently, the interrupt controller in x86 is connected to the io bus
directly.  Therefore the packets between the io devices and the interrupt
controller do not go through ruby.  This patch changes ruby port so that
these packets arrive at the ruby port first, which then routes them to their
destination.  Note that the patch does not make these packets go through the
ruby network.  That would happen in a subsequent patch.
2014-02-23 19:16:16 -06:00
Nilay Vaish
bb6d7d402b ruby: rename MESI_CMP_directory to MESI_Two_Level
This is because the next patch introduces a three level hierarchy.

--HG--
rename : build_opts/ALPHA_MESI_CMP_directory => build_opts/ALPHA_MESI_Two_Level
rename : build_opts/X86_MESI_CMP_directory => build_opts/X86_MESI_Two_Level
rename : configs/ruby/MESI_CMP_directory.py => configs/ruby/MESI_Two_Level.py
rename : src/mem/protocol/MESI_CMP_directory-L1cache.sm => src/mem/protocol/MESI_Two_Level-L1cache.sm
rename : src/mem/protocol/MESI_CMP_directory-L2cache.sm => src/mem/protocol/MESI_Two_Level-L2cache.sm
rename : src/mem/protocol/MESI_CMP_directory-dir.sm => src/mem/protocol/MESI_Two_Level-dir.sm
rename : src/mem/protocol/MESI_CMP_directory-dma.sm => src/mem/protocol/MESI_Two_Level-dma.sm
rename : src/mem/protocol/MESI_CMP_directory-msg.sm => src/mem/protocol/MESI_Two_Level-msg.sm
rename : src/mem/protocol/MESI_CMP_directory.slicc => src/mem/protocol/MESI_Two_Level.slicc
rename : tests/long/fs/10.linux-boot/ref/x86/linux/pc-simple-timing-ruby-MESI_CMP_directory/config.ini => tests/long/fs/10.linux-boot/ref/x86/linux/pc-simple-timing-ruby-MESI_Two_Level/config.ini
rename : tests/long/fs/10.linux-boot/ref/x86/linux/pc-simple-timing-ruby-MESI_CMP_directory/ruby.stats => tests/long/fs/10.linux-boot/ref/x86/linux/pc-simple-timing-ruby-MESI_Two_Level/ruby.stats
rename : tests/long/fs/10.linux-boot/ref/x86/linux/pc-simple-timing-ruby-MESI_CMP_directory/simerr => tests/long/fs/10.linux-boot/ref/x86/linux/pc-simple-timing-ruby-MESI_Two_Level/simerr
rename : tests/long/fs/10.linux-boot/ref/x86/linux/pc-simple-timing-ruby-MESI_CMP_directory/simout => tests/long/fs/10.linux-boot/ref/x86/linux/pc-simple-timing-ruby-MESI_Two_Level/simout
rename : tests/long/fs/10.linux-boot/ref/x86/linux/pc-simple-timing-ruby-MESI_CMP_directory/stats.txt => tests/long/fs/10.linux-boot/ref/x86/linux/pc-simple-timing-ruby-MESI_Two_Level/stats.txt
rename : tests/long/fs/10.linux-boot/ref/x86/linux/pc-simple-timing-ruby-MESI_CMP_directory/system.pc.com_1.terminal => tests/long/fs/10.linux-boot/ref/x86/linux/pc-simple-timing-ruby-MESI_Two_Level/system.pc.com_1.terminal
rename : tests/quick/se/00.hello/ref/alpha/linux/simple-timing-ruby-MESI_CMP_directory/config.ini => tests/quick/se/00.hello/ref/alpha/linux/simple-timing-ruby-MESI_Two_Level/config.ini
rename : tests/quick/se/00.hello/ref/alpha/linux/simple-timing-ruby-MESI_CMP_directory/ruby.stats => tests/quick/se/00.hello/ref/alpha/linux/simple-timing-ruby-MESI_Two_Level/ruby.stats
rename : tests/quick/se/00.hello/ref/alpha/linux/simple-timing-ruby-MESI_CMP_directory/simerr => tests/quick/se/00.hello/ref/alpha/linux/simple-timing-ruby-MESI_Two_Level/simerr
rename : tests/quick/se/00.hello/ref/alpha/linux/simple-timing-ruby-MESI_CMP_directory/simout => tests/quick/se/00.hello/ref/alpha/linux/simple-timing-ruby-MESI_Two_Level/simout
rename : tests/quick/se/00.hello/ref/alpha/linux/simple-timing-ruby-MESI_CMP_directory/stats.txt => tests/quick/se/00.hello/ref/alpha/linux/simple-timing-ruby-MESI_Two_Level/stats.txt
rename : tests/quick/se/00.hello/ref/alpha/tru64/simple-timing-ruby-MESI_CMP_directory/config.ini => tests/quick/se/00.hello/ref/alpha/tru64/simple-timing-ruby-MESI_Two_Level/config.ini
rename : tests/quick/se/00.hello/ref/alpha/tru64/simple-timing-ruby-MESI_CMP_directory/ruby.stats => tests/quick/se/00.hello/ref/alpha/tru64/simple-timing-ruby-MESI_Two_Level/ruby.stats
rename : tests/quick/se/00.hello/ref/alpha/tru64/simple-timing-ruby-MESI_CMP_directory/simerr => tests/quick/se/00.hello/ref/alpha/tru64/simple-timing-ruby-MESI_Two_Level/simerr
rename : tests/quick/se/00.hello/ref/alpha/tru64/simple-timing-ruby-MESI_CMP_directory/simout => tests/quick/se/00.hello/ref/alpha/tru64/simple-timing-ruby-MESI_Two_Level/simout
rename : tests/quick/se/00.hello/ref/alpha/tru64/simple-timing-ruby-MESI_CMP_directory/stats.txt => tests/quick/se/00.hello/ref/alpha/tru64/simple-timing-ruby-MESI_Two_Level/stats.txt
rename : tests/quick/se/50.memtest/ref/alpha/linux/memtest-ruby-MESI_CMP_directory/config.ini => tests/quick/se/50.memtest/ref/alpha/linux/memtest-ruby-MESI_Two_Level/config.ini
rename : tests/quick/se/50.memtest/ref/alpha/linux/memtest-ruby-MESI_CMP_directory/ruby.stats => tests/quick/se/50.memtest/ref/alpha/linux/memtest-ruby-MESI_Two_Level/ruby.stats
rename : tests/quick/se/50.memtest/ref/alpha/linux/memtest-ruby-MESI_CMP_directory/simerr => tests/quick/se/50.memtest/ref/alpha/linux/memtest-ruby-MESI_Two_Level/simerr
rename : tests/quick/se/50.memtest/ref/alpha/linux/memtest-ruby-MESI_CMP_directory/simout => tests/quick/se/50.memtest/ref/alpha/linux/memtest-ruby-MESI_Two_Level/simout
rename : tests/quick/se/50.memtest/ref/alpha/linux/memtest-ruby-MESI_CMP_directory/stats.txt => tests/quick/se/50.memtest/ref/alpha/linux/memtest-ruby-MESI_Two_Level/stats.txt
rename : tests/quick/se/60.rubytest/ref/alpha/linux/rubytest-ruby-MESI_CMP_directory/config.ini => tests/quick/se/60.rubytest/ref/alpha/linux/rubytest-ruby-MESI_Two_Level/config.ini
rename : tests/quick/se/60.rubytest/ref/alpha/linux/rubytest-ruby-MESI_CMP_directory/ruby.stats => tests/quick/se/60.rubytest/ref/alpha/linux/rubytest-ruby-MESI_Two_Level/ruby.stats
rename : tests/quick/se/60.rubytest/ref/alpha/linux/rubytest-ruby-MESI_CMP_directory/simerr => tests/quick/se/60.rubytest/ref/alpha/linux/rubytest-ruby-MESI_Two_Level/simerr
rename : tests/quick/se/60.rubytest/ref/alpha/linux/rubytest-ruby-MESI_CMP_directory/simout => tests/quick/se/60.rubytest/ref/alpha/linux/rubytest-ruby-MESI_Two_Level/simout
rename : tests/quick/se/60.rubytest/ref/alpha/linux/rubytest-ruby-MESI_CMP_directory/stats.txt => tests/quick/se/60.rubytest/ref/alpha/linux/rubytest-ruby-MESI_Two_Level/stats.txt
2014-01-04 00:03:33 -06:00
Renamed from configs/ruby/MESI_CMP_directory.py (Browse further)