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path: root/src/mem/bus.hh
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2012-02-09MEM: Remove onRetryList from BusPort and rely on retryListAndreas Hansson
This patch removes the onRetryList field from the BusPort class and entirely relies on the retryList which holds all ports that are waiting to retry. The onRetryList field and the retryList were previously used with overloaded functionalities and only one is really needed (there were also checks to assert they held the same information). After this patch the bus ports will be split into master and slave ports and this simplifies that transition.
2012-01-17MEM: Make the bus default port yet another portAndreas Hansson
This patch removes the idiosyncratic nature of the default bus port and makes it yet another port in the list of interfaces. Rather than having a specific pointer to the default port we merely track the identifier of this port. This change makes future port diversification easier and overall cleans up the bus code.
2012-01-17MEM: Remove the functional ports from the memory systemWilliam Wang
The functional ports are no longer used and this patch cleans up the legacy that is still present in buses, memories, CPUs etc. Note that this does not refer to the class FunctionalPort (already removed), but rather ports with the name (and use) functional.
2012-01-17MEM: Separate queries for snooping and address rangesAndreas Hansson
This patch simplifies the address-range determination mechanism and also unifies the naming across ports and devices. It further splits the queries for determining if a port is snooping and what address ranges it responds to (aiming towards a separation of cache-maintenance ports and pure memory-mapped ports). Default behaviours are such that most ports do not have to define isSnooping, and master ports need not implement getAddrRanges.
2012-01-17MEM: Remove Port removeConn and MemObject deletePortRefsAndreas Hansson
Cleaning up and simplifying the ports and going towards a more strict elaboration-time creation and binding of the ports.
2011-04-15includes: sort all includesNathan Binkert
2010-08-17bus: clean up default responder code.Steve Reinhardt
Clean up some minor things left over from the default responder change in rev 9af6fb59752f. Mostly renaming the 'responder_set' param to 'use_default_range' to actually reflect what it does... old name wasn't that descriptive in the first place, but now it really doesn't make sense at all. Also got rid of the bogus obsolete assignment to 'bus.responder' which used to be a parameter but now is interpreted as an implicit child assignment, and which was giving me problems in the config restructuring to come. (A good argument for not allowing implicit child assignments, IMO, but that's water under the bridge, I'm afraid.) Also moved the Bus constructor to the .cc file since that's where it should have been all along.
2009-06-04types: clean up types, especially signed vs unsignedNathan Binkert
2009-05-17includes: sort includes againNathan Binkert
2009-05-17includes: use base/types.hh not inttypes.h or stdint.hNathan Binkert
2008-06-28Backed out changeset 94a7bb476fca: caused memory leak.Steve Reinhardt
2008-06-21Generate more useful error messages for unconnected ports.Steve Reinhardt
Force all non-default ports to provide a name and an owner in the constructor.
2008-03-17Restructure bus timing calcs to cope with pkt being deleted by target.Steve Reinhardt
--HG-- extra : convert_revision : db8497e73a44f2a06aab121e797e88b4c0c31330
2008-02-26Bus: Fix the bus timing to be more realistic.Gabe Black
--HG-- extra : convert_revision : acd70dc98ab840e55b114706fbb6afb2a95e54bc
2008-02-06Make the Event::description() a const functionStephen Hines
--HG-- extra : convert_revision : c7768d54d3f78685e93920069f5485083ca989c0
2007-08-30params: Deprecate old-style constructors; update most SimObject constructors.Miles Kaufmann
SimObjects not yet updated: - Process and subclasses - BaseCPU and subclasses The SimObject(const std::string &name) constructor was removed. Subclasses that still rely on that behavior must call the parent initializer as : SimObject(makeParams(name)) --HG-- extra : convert_revision : d6faddde76e7c3361ebdbd0a7b372a40941c12ed
2007-08-10DMA: Add IOCache and fix bus bridge to optionally only send requests oneAli Saidi
way so a cache can handle partial block requests for i/o devices. --HG-- extra : convert_revision : a68b5ae826731bc87ed93eb7ef326a2393053964
2007-08-08Port, StaticInst: Revert unnecessary changes.Vincentius Robby
--HG-- extra : convert_revision : e6ef262bbbc5ad53498e55caac1897e6cc2a61e6
2007-08-08alpha: Make the TLB cache to actually work.Vincentius Robby
Improve MRU checking for StaticInst, Bus, TLB --HG-- extra : convert_revision : 9116b5655cd2986aeb4205438aad4a0f5a440006
2007-08-04port: Implement cache for port interfaces and rangesVincentius Robby
--HG-- extra : convert_revision : d7cbec7c277fb8f4d8846203caae36ce629602d5
2007-07-24Integrate snoop loop functions into their respective call sites.Steve Reinhardt
Also some additional cleanup of Bus::recvTiming(). --HG-- extra : convert_revision : 156814119f75d04c2e954aec2d7ed6fdc186c26f
2007-07-15Make Bus::findPort() a little more useful.Steve Reinhardt
Move check for loops outside, since half the call sites end up working around it anyway. Return integer port ID instead of port object pointer. --HG-- extra : convert_revision : 4c31fe9930f4d1aa4919e764efb7c50d43792ea3
2007-06-17Merge vm1.(none):/home/stever/bk/newmem-headSteve Reinhardt
into vm1.(none):/home/stever/bk/newmem-cache2 configs/example/memtest.py: Hand merge redundant changes. --HG-- extra : convert_revision : a2e36be254bf052024f37bcb23b5209f367d37e1
2007-06-17More major reorg of cache. Seems to work for atomic mode now,Steve Reinhardt
timing mode still broken. configs/example/memtest.py: Revamp options. src/cpu/memtest/memtest.cc: No need for memory initialization. No need to make atomic response... memory system should do that now. src/cpu/memtest/memtest.hh: MemTest really doesn't want to snoop. src/mem/bridge.cc: checkFunctional() cleanup. src/mem/bus.cc: src/mem/bus.hh: src/mem/cache/base_cache.cc: src/mem/cache/base_cache.hh: src/mem/cache/cache.cc: src/mem/cache/cache.hh: src/mem/cache/cache_blk.hh: src/mem/cache/cache_builder.cc: src/mem/cache/cache_impl.hh: src/mem/cache/coherence/coherence_protocol.cc: src/mem/cache/coherence/coherence_protocol.hh: src/mem/cache/coherence/simple_coherence.hh: src/mem/cache/miss/SConscript: src/mem/cache/miss/mshr.cc: src/mem/cache/miss/mshr.hh: src/mem/cache/miss/mshr_queue.cc: src/mem/cache/miss/mshr_queue.hh: src/mem/cache/prefetch/base_prefetcher.cc: src/mem/cache/tags/fa_lru.cc: src/mem/cache/tags/fa_lru.hh: src/mem/cache/tags/iic.cc: src/mem/cache/tags/iic.hh: src/mem/cache/tags/lru.cc: src/mem/cache/tags/lru.hh: src/mem/cache/tags/split.cc: src/mem/cache/tags/split.hh: src/mem/cache/tags/split_lifo.cc: src/mem/cache/tags/split_lifo.hh: src/mem/cache/tags/split_lru.cc: src/mem/cache/tags/split_lru.hh: src/mem/packet.cc: src/mem/packet.hh: src/mem/physical.cc: src/mem/physical.hh: src/mem/tport.cc: More major reorg. Seems to work for atomic mode now, timing mode still broken. --HG-- extra : convert_revision : 7e70dfc4a752393b911880ff028271433855ae87
2007-06-09Add a startup function that will fast forward to the right clock edgeNathan Binkert
using a divide in order to not loop forever after resuming from a checkpoint --HG-- extra : convert_revision : 4bbc70b1be4e5c4ed99d4f88418ab620d5ce475a
2007-05-21Change getDeviceAddressRanges to use bool for snoop arg.Steve Reinhardt
--HG-- extra : convert_revision : 832e52ba80cbab2f5bb6d5b5977a499d41b4d638
2007-05-07fix partial writes with a functional memory hackAli Saidi
figure out the block size from devices attached to the bus otherwise use a default block size when no devices that care are attached configs/common/FSConfig.py: src/mem/bridge.cc: src/mem/bridge.hh: src/python/m5/objects/Bridge.py: fix partial writes with a functional memory hack src/mem/bus.cc: src/mem/bus.hh: src/python/m5/objects/Bus.py: figure out the block size from devices attached to the bus otherwise use a default block size when no devices that care are attached src/mem/packet.cc: fix WriteInvalidateResp to not be a request that needs a response since it isn't src/mem/port.hh: by default return 0 for deviceBlockSize instead of panicing. This makes finding the block size the bus should use easier --HG-- extra : convert_revision : 3fcfe95f9f392ef76f324ee8bd1d7f6de95c1a64
2007-04-04The MemoryObject tha owns a port should delete it if it so chooses when ↵Ali Saidi
deletePortRefs() is called on it with that port as a parameter. In this way a MemoryObject can keep a functional port around and give it to anyone who wants to do functional accesses rather than creating a new one each time. src/mem/bus.cc: src/mem/bus.hh: src/mem/cache/cache_impl.hh: only keep around one func port we give to anyone who wants it. Otherwise we can run out of port ids reasonably quickly if a lot of functional accesses are happening (e.g. remote debugging, dprintk, etc) --HG-- extra : convert_revision : 6a9e3e96f51cedaab6de1b36cf317203899a3716
2007-03-08stop m5 from leaking like a sieveAli Saidi
don't create a new physPort/virtPort every time activateContext() is called add the ability to tell a memory object to delete it's reference to a port and a method to have a port call deletePortRefs() on the port owner as well as delete it's peer still need to stop calling connectMemoPorts() every time activateContext() is called or we'll overflow the bus id and panic src/cpu/thread_state.cc: if we hav ea (phys|virt)Port don't create a new on, have it delete it's peer and then reuse it src/mem/bus.cc: src/mem/bus.hh: add ability to delete a port by usig a hash_map instead of an array to store port ids add a function to do deleting src/mem/cache/cache.hh: src/mem/cache/cache_impl.hh: src/mem/mem_object.cc: src/mem/mem_object.hh: adda function to delete port references from a memory object src/mem/port.cc: src/mem/port.hh: add a removeConn function that tell the owener to delete any references to the port and then deletes its peer --HG-- extra : convert_revision : 272f0c8f80e1cf1ab1750d8be5a6c9aa110b06a4
2007-02-06Minor DPRINTF fixes.Steve Reinhardt
--HG-- extra : convert_revision : 41956c9a480163ecac7807982215027e8ff1a4a9
2006-12-15Use my range_map to speed up findPort() in the bus. The snoop code could ↵Ali Saidi
still use some work. --HG-- extra : convert_revision : ba0a68bd378d68e4ebd80a101b965d36c8be1db9
2006-11-14Update atomic and functional paths for snoops as wellRon Dreslinski
--HG-- extra : convert_revision : 566d73438efb87ca683e4dee23454d880db3dfc7
2006-11-14Update bus bridges now that snoop ranges are passed properlyRon Dreslinski
src/mem/bridge.cc: Update brdiges, now that snoop addresses are properly forwarded. Bus bridge should only handle snoops on the second phase (SNOOP_COMMIT) src/mem/bus.cc: src/mem/bus.hh: Make sure if a busBridge has access to both things that snoop and things that respond it only takes the request once --HG-- extra : convert_revision : 26cc9ee4429be45d4476fa435e0e9a54843c2509
2006-11-07Fix up bus draining and add draining to the caches.Kevin Lim
src/mem/bus.cc: Fix up draining to work properly. src/mem/bus.hh: Initialize drainEvent to NULL. src/mem/cache/base_cache.cc: src/mem/cache/base_cache.hh: Add draining to the caches. --HG-- extra : convert_revision : 3082220a75d50876f10909f9f99bec535889f818
2006-11-02Merge ktlim@zizzer:/bk/newmemKevin Lim
into zamp.eecs.umich.edu:/z/ktlim2/clean/newmem-busfix --HG-- extra : convert_revision : a9a41e2c292bd95aa148e1cf4d9a77c0622a462b
2006-11-02Have bus use the BadAddress device to handle bad addresses. The O3 CPU ↵Kevin Lim
should be able to boot into Linux with caches on after this change. src/mem/bus.cc: src/mem/bus.hh: Bus now will be setup with a default responder, unless the user overrides it. This default responder should return BadAddress if no matching port is found. src/python/m5/objects/Bus.py: Bus now has a default responder for FS mode if the user doesn't override it. It returns BadAddress if no matching port is found. src/python/m5/objects/Tsunami.py: Add bad address device. Also record when the user has specified their own default responder. --HG-- extra : convert_revision : 59070477ae313ee711b2d59baa2369c9a91c5b85
2006-11-01Merge zizzer.eecs.umich.edu:/bk/newmem/Gabe Black
into zeep.eecs.umich.edu:/home/gblack/m5/newmemmemops --HG-- extra : convert_revision : c2f7398a0d14dd11108579bb243ada7420285a22
2006-11-01Added code to handle draining.Gabe Black
--HG-- extra : convert_revision : 3861f553bde5865cd21a8a58a4c410896726f0a3
2006-10-31Ports now have a pointer to the MemObject that owns it (can be NULL).Kevin Lim
src/cpu/simple/atomic.hh: Port now takes in the MemObject that owns it. src/cpu/simple/timing.hh: Port now takes in MemObject that owns it. src/dev/io_device.cc: src/mem/bus.hh: Ports now take in the MemObject that owns it. src/mem/cache/base_cache.cc: Ports now take in the MemObject that own it. src/mem/port.hh: src/mem/tport.hh: Ports now optionally take in the MemObject that owns it. --HG-- extra : convert_revision : 890a72a871795987c2236c65937e06973412d349
2006-10-20Use PacketPtr everywhereNathan Binkert
--HG-- extra : convert_revision : d9eb83ab77ffd2d725961f295b1733137e187711
2006-10-11Make default ID unique (not broadcast)Ron Dreslinski
Fix a segfault associated with DefaultId src/mem/bus.cc: Handle a segfault in the bus when DefaultPort was being used src/mem/bus.hh: Make the Default ID more unique (it overlapped with Broadcast ID) --HG-- extra : convert_revision : 9182805c5cf4d9fe004e6c5be8547a8f41ed7bfe
2006-10-11Forgot to mark myself as on the retry listRon Dreslinski
--HG-- extra : convert_revision : c20170320a284a7bf143a929e4d3aa1475a8bfe0
2006-10-11Fix bus in FS mode.Ron Dreslinski
src/mem/bus.cc: Add debugging statement src/mem/bus.hh: Fix implementation of bus for subsequent recvTimings while handling a retry request. src/mem/tport.cc: Rework timing port to retry properly --HG-- extra : convert_revision : fbfb5e8b4a625e49c6cd764da1df46a4f336b1b2
2006-10-11More cache fixes. Atomic coherence now works as well.Ron Dreslinski
src/cpu/memtest/memtest.cc: src/cpu/memtest/memtest.hh: Make Memtester able to test atomic as well src/mem/bus.cc: src/mem/bus.hh: Handle atomic snoops properly for cache->cache transfers src/mem/cache/cache_impl.hh: Debug output. Clean up memleak in atomic mode. Set hitLatency. Still need to send back reasonable number for atomic return value. src/mem/packet.cc: Add command strings for new commands src/python/m5/objects/MemTest.py: Add param to test atomic memory. --HG-- extra : convert_revision : 43f880e29215776167c16ea90793ebf8122c785b
2006-10-10Make the bus is occupied for none broadcast packets as well.Gabe Black
--HG-- extra : convert_revision : aef3c625172e92be8f29c4c57077fefee43046bb
2006-10-10Put in an accounting mechanism and an assert to make sure something doesn't ↵Gabe Black
try to send another packet while it's still waiting for the bus. --HG-- extra : convert_revision : 4a2b83111e49f71ca27e05c98b55bc3bac8d9f53
2006-10-10Changed the bus to use a bool to keep track of retries rather than a pointerGabe Black
src/mem/tport.cc: minor formatting tweak --HG-- extra : convert_revision : 7391d142815c5876fcc0f991bd053e6a1781c101
2006-10-09Fixes to the bus, and added fields to the packet.Gabe Black
src/mem/bus.cc: Put back the check to see if the bus is busy. Also, populate the fields in the packet to indicate when the first word and the entire packet will be delivered. src/mem/bus.hh: Remove the occupyBus function. src/mem/packet.hh: Added fields to the packet to indicate when the first chunk of a packet arrives, and when the entire packet arrives. --HG-- extra : convert_revision : cfc7670a33913d48a04d02c6d2448290a51f2d3c
2006-10-09Merge zizzer.eecs.umich.edu:/bk/newmemGabe Black
into zeep.eecs.umich.edu:/home/gblack/m5/newmem_bus --HG-- extra : convert_revision : 8267487b935eaf11665841ace3a5c664751b53b0
2006-10-09Potentially functional partially timed bandwidth limitted bus model.Gabe Black
src/mem/bus.cc: Fixes to the previous hand merging, and put the snooping back into recvTiming and out of it's own function. src/mem/bus.hh: Put snooping back into recvTiming and not in it's own function. --HG-- extra : convert_revision : fd031b7e6051a5be07ed6926454fde73b1739dc6
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