Commit graph

13 commits

Author SHA1 Message Date
Andreas Hansson
2208ea049f MEM: Make the bus bridge unidirectional and fixed address range
This patch makes the bus bridge uni-directional and specialises the
bus ports to be a master port and a slave port. This greatly
simplifies the assumptions on both sides as either port only has to
deal with requests or responses. The following patches introduce the
notion of master and slave ports, and would not be possible without
this split of responsibilities.

In making the bridge unidirectional, the address range mechanism of
the bridge is also changed. For the cases where communication is
taking place both ways, an additional bridge is needed. This causes
issues with the existing mechanism, as the busses cannot determine
when to stop iterating the address updates from the two bridges. To
avoid this issue, and also greatly simplify the specification, the
bridge now has a fixed set of address ranges, specified at creation
time.
2012-01-17 12:55:09 -06:00
Ali Saidi
a432d8e085 Mem: Fix issue with dirty block being lost when entire block transferred to non-cache.
This change fixes the problem for all the cases we actively use. If you want to try
more creative I/O device attachments (E.g. sharing an L2), this won't work. You
would need another level of caching between the I/O device and the cache
(which you actually need anyway with our current code to make sure writes
propagate). This is required so that you can mark the cache in between as
top level and it won't try to send ownership of a block to the I/O device.
Asserts have been added that should catch any issues.
2011-03-17 19:20:19 -05:00
Gabe Black
00f24ae92c Config: Keep track of uncached and cached ports separately.
This makes sure that the address ranges requested for caches and uncached ports
don't conflict with each other, and that accesses which are always uncached
(message signaled interrupts for instance) don't waste time passing through
caches.
2011-02-03 20:23:00 -08:00
Nathan Binkert
9a8cb7db7e python: Move more code into m5.util allow SCons to use that code.
Get rid of misc.py and just stick misc things in __init__.py
Move utility functions out of SCons files and into m5.util
Move utility type stuff from m5/__init__.py to m5/util/__init__.py
Remove buildEnv from m5 and allow access only from m5.defines
Rename AddToPath to addToPath while we're moving it to m5.util
Rename read_command to readCommand while we're moving it
Rename compare_versions to compareVersions while we're moving it.

--HG--
rename : src/python/m5/convert.py => src/python/m5/util/convert.py
rename : src/python/m5/smartdict.py => src/python/m5/util/smartdict.py
2009-09-22 15:24:16 -07:00
Steve Reinhardt
6629d9b2bc mem: use single BadAddr responder per system.
Previously there was one per bus, which caused some coherence problems
when more than one decided to respond.  Now there is just one on
the main memory bus.  The default bus responder on all other buses
is now the downstream cache's cpu_side port.  Caches no longer need
to do address range filtering; instead, we just have a simple flag
to prevent snoops from propagating to the I/O bus.
2008-07-16 11:10:33 -07:00
Ali Saidi
9493501fdb Regression: Add an I/O Cache to the full system regressions that have a cache.
--HG--
extra : convert_revision : 8ba96e21be2f602eed8258d410038dbe998ef176
2007-08-10 16:14:02 -04:00
Steve Reinhardt
07f091d6ed Get rid of remaining traces of obsolete CoherenceProtocol object.
--HG--
extra : convert_revision : c5555b00bef1b304a84886188ad2c0dcb4d7c5b9
2007-06-30 17:59:45 -07:00
Ali Saidi
634d2e9d83 remove hit_latency and make latency do the right thing
set the latency parameter in terms of a latency
add caches to tsunami-simple configs

configs/common/Caches.py:
tests/configs/memtest.py:
tests/configs/o3-timing-mp.py:
tests/configs/o3-timing.py:
tests/configs/simple-atomic-mp.py:
tests/configs/simple-timing-mp.py:
tests/configs/simple-timing.py:
    set the latency parameter in terms of a latency
configs/common/FSConfig.py:
    give the bridge a default latency too
src/mem/cache/cache_builder.cc:
src/python/m5/objects/BaseCache.py:
    remove hit_latency and make latency do the right thing
tests/configs/tsunami-simple-atomic-dual.py:
tests/configs/tsunami-simple-atomic.py:
tests/configs/tsunami-simple-timing-dual.py:
tests/configs/tsunami-simple-timing.py:
    add caches to tsunami-simple configs

--HG--
extra : convert_revision : 37bef7c652e97c8cdb91f471fba62978f89019f1
2007-05-10 18:24:48 -04:00
Nathan Binkert
d55b25cde6 Move all of the parameters of the Root SimObject so they are
directly configured by python.  Move stuff from root.(cc|hh) to
core.(cc|hh) since it really belogs there now.
In the process, simplify how ticks are used in the python code.

--HG--
extra : convert_revision : cf82ee1ea20f9343924f30bacc2a38d4edee8df3
2007-03-06 11:13:43 -08:00
Kevin Lim
bfd5eb2b08 Remove mem parameter. Now the translating port asks the CPU's dcache's peer for its MemObject instead of having to have a paramter for the MemObject.
configs/example/fs.py:
configs/example/se.py:
src/cpu/simple/base.cc:
src/cpu/simple/base.hh:
src/cpu/simple/timing.cc:
src/cpu/simple_thread.cc:
src/cpu/simple_thread.hh:
src/cpu/thread_state.cc:
src/cpu/thread_state.hh:
tests/configs/o3-timing-mp.py:
tests/configs/o3-timing.py:
tests/configs/simple-atomic-mp.py:
tests/configs/simple-atomic.py:
tests/configs/simple-timing-mp.py:
tests/configs/simple-timing.py:
tests/configs/tsunami-simple-atomic-dual.py:
tests/configs/tsunami-simple-atomic.py:
tests/configs/tsunami-simple-timing-dual.py:
tests/configs/tsunami-simple-timing.py:
    No need for mem parameter any more.
src/cpu/checker/cpu.cc:
    Use new constructor for simple thread (no more MemObject parameter).
src/cpu/checker/cpu.hh:
    Remove MemObject parameter.
src/cpu/memtest/memtest.hh:
    Ports now take in their MemObject owner.
src/cpu/o3/alpha/cpu_builder.cc:
    Remove mem parameter.
src/cpu/o3/alpha/cpu_impl.hh:
    Remove memory parameter and clean up handling of TranslatingPort.
src/cpu/o3/cpu.cc:
src/cpu/o3/cpu.hh:
src/cpu/o3/fetch.hh:
src/cpu/o3/fetch_impl.hh:
src/cpu/o3/mips/cpu_builder.cc:
src/cpu/o3/mips/cpu_impl.hh:
src/cpu/o3/params.hh:
src/cpu/o3/thread_state.hh:
src/cpu/ozone/cpu.hh:
src/cpu/ozone/cpu_builder.cc:
src/cpu/ozone/cpu_impl.hh:
src/cpu/ozone/front_end.hh:
src/cpu/ozone/front_end_impl.hh:
src/cpu/ozone/lw_lsq.hh:
src/cpu/ozone/lw_lsq_impl.hh:
src/cpu/ozone/simple_params.hh:
src/cpu/ozone/thread_state.hh:
src/cpu/simple/atomic.cc:
    Remove memory parameter.

--HG--
extra : convert_revision : 43cb44a33b31320d44b69679dcf646c0380d07d3
2006-10-31 14:33:56 -05:00
Steve Reinhardt
d3fba5aa30 Implement Alpha LL/SC support for SimpleCPU (Atomic & Timing)
and PhysicalMemory.  *No* support for caches or O3CPU.
Note that properly setting cpu_id on all CPUs is now required
for correct operation.

src/arch/SConscript:
src/base/traceflags.py:
src/cpu/base.hh:
src/cpu/simple/atomic.cc:
src/cpu/simple/timing.cc:
src/cpu/simple/timing.hh:
src/mem/physical.cc:
src/mem/physical.hh:
src/mem/request.hh:
src/python/m5/objects/BaseCPU.py:
tests/configs/simple-atomic.py:
tests/configs/simple-timing.py:
tests/configs/tsunami-simple-atomic-dual.py:
tests/configs/tsunami-simple-atomic.py:
tests/configs/tsunami-simple-timing-dual.py:
tests/configs/tsunami-simple-timing.py:
    Implement Alpha LL/SC support for SimpleCPU (Atomic & Timing)
    and PhysicalMemory.  *No* support for caches or O3CPU.

--HG--
extra : convert_revision : 6ce982d44924cc477e049b9adf359818908e72be
2006-10-08 10:53:24 -07:00
Steve Reinhardt
4e3164617a Add caches in, fix cpu.mem param
--HG--
extra : convert_revision : 486283d83786807c72bb4601e4b9613b55d8802c
2006-08-18 00:16:23 -04:00
Steve Reinhardt
bd4ccd6e39 Finish test clean-up & reorg.
configs/common/FSConfig.py:
    Add default Machine() param
configs/example/fs.py:
configs/example/se.py:
    make it work again
src/python/m5/objects/BaseCPU.py:
    Make mem PhysicalMemory so that a Parent.any proxy works well
src/sim/process.cc:
    Increase default stack size so we don't get an
    'increasing stack' message on 'hello world'
tests/SConscript:
    Add full list of current configs.
tests/configs/simple-atomic.py:
tests/configs/simple-timing.py:
    don't need SEConfig anymore
tests/quick/00.hello/test.py:
tests/quick/20.eio-short/test.py:
    fix
tests/run.py:
    move configs to separate dir

--HG--
rename : configs/test/fs.py => configs/example/fs.py
rename : configs/test/test.py => configs/example/se.py
rename : tests/simple-atomic.py => tests/configs/simple-atomic.py
rename : tests/simple-timing.py => tests/configs/simple-timing.py
rename : tests/linux-mpboot/ref/alpha/atomic/config.ini => tests/quick/10.linux-boot/ref/alpha/linux/tsunami-simple-atomic-dual/config.ini
rename : tests/linux-mpboot/ref/alpha/atomic/config.out => tests/quick/10.linux-boot/ref/alpha/linux/tsunami-simple-atomic-dual/config.out
rename : tests/linux-mpboot/ref/alpha/atomic/console.system.sim_console => tests/quick/10.linux-boot/ref/alpha/linux/tsunami-simple-atomic-dual/console.system.sim_console
rename : tests/linux-mpboot/ref/alpha/atomic/m5stats.txt => tests/quick/10.linux-boot/ref/alpha/linux/tsunami-simple-atomic-dual/m5stats.txt
rename : tests/linux-mpboot/ref/alpha/atomic/stderr => tests/quick/10.linux-boot/ref/alpha/linux/tsunami-simple-atomic-dual/stderr
rename : tests/linux-mpboot/ref/alpha/atomic/stdout => tests/quick/10.linux-boot/ref/alpha/linux/tsunami-simple-atomic-dual/stdout
rename : tests/linux-boot/ref/alpha/atomic/config.ini => tests/quick/10.linux-boot/ref/alpha/linux/tsunami-simple-atomic/config.ini
rename : tests/linux-boot/ref/alpha/atomic/config.out => tests/quick/10.linux-boot/ref/alpha/linux/tsunami-simple-atomic/config.out
rename : tests/linux-boot/ref/alpha/atomic/console.system.sim_console => tests/quick/10.linux-boot/ref/alpha/linux/tsunami-simple-atomic/console.system.sim_console
rename : tests/linux-boot/ref/alpha/atomic/m5stats.txt => tests/quick/10.linux-boot/ref/alpha/linux/tsunami-simple-atomic/m5stats.txt
rename : tests/linux-boot/ref/alpha/atomic/stderr => tests/quick/10.linux-boot/ref/alpha/linux/tsunami-simple-atomic/stderr
rename : tests/linux-boot/ref/alpha/atomic/stdout => tests/quick/10.linux-boot/ref/alpha/linux/tsunami-simple-atomic/stdout
rename : tests/linux-mpboot/ref/alpha/timing/config.ini => tests/quick/10.linux-boot/ref/alpha/linux/tsunami-simple-timing-dual/config.ini
rename : tests/linux-mpboot/ref/alpha/timing/config.out => tests/quick/10.linux-boot/ref/alpha/linux/tsunami-simple-timing-dual/config.out
rename : tests/linux-mpboot/ref/alpha/timing/console.system.sim_console => tests/quick/10.linux-boot/ref/alpha/linux/tsunami-simple-timing-dual/console.system.sim_console
rename : tests/linux-mpboot/ref/alpha/timing/m5stats.txt => tests/quick/10.linux-boot/ref/alpha/linux/tsunami-simple-timing-dual/m5stats.txt
rename : tests/linux-mpboot/ref/alpha/timing/stderr => tests/quick/10.linux-boot/ref/alpha/linux/tsunami-simple-timing-dual/stderr
rename : tests/linux-mpboot/ref/alpha/timing/stdout => tests/quick/10.linux-boot/ref/alpha/linux/tsunami-simple-timing-dual/stdout
rename : tests/test-progs/hello/bin/mips/linux/hello_mips => tests/test-progs/hello/bin/mips/linux/hello
rename : tests/test-progs/hello/bin/sparc/bin => tests/test-progs/hello/bin/sparc/linux/hello
extra : convert_revision : d68ee6d7eefa7ba57370f3fb3c3589f86a6ea6b4
2006-08-16 14:42:44 -04:00