Commit graph

469 commits

Author SHA1 Message Date
Ali Saidi
f6895e8bd4 Cache: Panic if you attempt to create a checkpoint with a cache in the system 2012-05-10 18:04:26 -05:00
Andreas Hansson
3fea59e162 MEM: Separate requests and responses for timing accesses
This patch moves send/recvTiming and send/recvTimingSnoop from the
Port base class to the MasterPort and SlavePort, and also splits them
into separate member functions for requests and responses:
send/recvTimingReq, send/recvTimingResp, and send/recvTimingSnoopReq,
send/recvTimingSnoopResp. A master port sends requests and receives
responses, and also receives snoop requests and sends snoop
responses. A slave port has the reciprocal behaviour as it receives
requests and sends responses, and sends snoop requests and receives
snoop responses.

For all MemObjects that have only master ports or slave ports (but not
both), e.g. a CPU, or a PIO device, this patch merely adds more
clarity to what kind of access is taking place. For example, a CPU
port used to call sendTiming, and will now call
sendTimingReq. Similarly, a response previously came back through
recvTiming, which is now recvTimingResp. For the modules that have
both master and slave ports, e.g. the bus, the behaviour was
previously relying on branches based on pkt->isRequest(), and this is
now replaced with a direct call to the apprioriate member function
depending on the type of access. Please note that send/recvRetry is
still shared by all the timing accessors and remains in the Port base
class for now (to maintain the current bus functionality and avoid
changing the statistics of all regressions).

The packet queue is split into a MasterPort and SlavePort version to
facilitate the use of the new timing accessors. All uses of the
PacketQueue are updated accordingly.

With this patch, the type of packet (request or response) is now well
defined for each type of access, and asserts on pkt->isRequest() and
pkt->isResponse() are now moved to the appropriate send member
functions. It is also worth noting that sendTimingSnoopReq no longer
returns a boolean, as the semantics do not alow snoop requests to be
rejected or stalled. All these assumptions are now excplicitly part of
the port interface itself.
2012-05-01 13:40:42 -04:00
Andreas Hansson
750f33a901 MEM: Remove the Broadcast destination from the packet
This patch simplifies the packet by removing the broadcast flag and
instead more firmly relying on (and enforcing) the semantics of
transactions in the classic memory system, i.e. request packets are
routed from a master to a slave based on the address, and when they
are created they have neither a valid source, nor destination. On
their way to the slave, the request packet is updated with a source
field for all modules that multiplex packets from multiple master
(e.g. a bus). When a request packet is turned into a response packet
(at the final slave), it moves the potentially populated source field
to the destination field, and the response packet is routed through
any multiplexing components back to the master based on the
destination field.

Modules that connect multiplexing components, such as caches and
bridges store any existing source and destination field in the sender
state as a stack (just as before).

The packet constructor is simplified in that there is no longer a need
to pass the Packet::Broadcast as the destination (this was always the
case for the classic memory system). In the case of Ruby, rather than
using the parameter to the constructor we now rely on setDest, as
there is already another three-argument constructor in the packet
class.

In many places where the packet information was printed as part of
DPRINTFs, request packets would be printed with a numeric "dest" that
would always be -1 (Broadcast) and that field is now removed from the
printing.
2012-04-14 05:45:55 -04:00
Andreas Hansson
dccca0d3a9 MEM: Separate snoops and normal memory requests/responses
This patch introduces port access methods that separates snoop
request/responses from normal memory request/responses. The
differentiation is made for functional, atomic and timing accesses and
builds on the introduction of master and slave ports.

Before the introduction of this patch, the packets belonging to the
different phases of the protocol (request -> [forwarded snoop request
-> snoop response]* -> response) all use the same port access
functions, even though the snoop packets flow in the opposite
direction to the normal packet. That is, a coherent master sends
normal request and receives responses, but receives snoop requests and
sends snoop responses (vice versa for the slave). These two distinct
phases now use different access functions, as described below.

Starting with the functional access, a master sends a request to a
slave through sendFunctional, and the request packet is turned into a
response before the call returns. In a system without cache coherence,
this is all that is needed from the functional interface. For the
cache-coherent scenario, a slave also sends snoop requests to coherent
masters through sendFunctionalSnoop, with responses returned within
the same packet pointer. This is currently used by the bus and caches,
and the LSQ of the O3 CPU. The send/recvFunctional and
send/recvFunctionalSnoop are moved from the Port super class to the
appropriate subclass.

Atomic accesses follow the same flow as functional accesses, with
request being sent from master to slave through sendAtomic. In the
case of cache-coherent ports, a slave can send snoop requests to a
master through sendAtomicSnoop. Just as for the functional access
methods, the atomic send and receive member functions are moved to the
appropriate subclasses.

The timing access methods are different from the functional and atomic
in that requests and responses are separated in time and
send/recvTiming are used for both directions. Hence, a master uses
sendTiming to send a request to a slave, and a slave uses sendTiming
to send a response back to a master, at a later point in time. Snoop
requests and responses travel in the opposite direction, similar to
what happens in functional and atomic accesses. With the introduction
of this patch, it is possible to determine the direction of packets in
the bus, and no longer necessary to look for both a master and a slave
port with the requested port id.

In contrast to the normal recvFunctional, recvAtomic and recvTiming
that are pure virtual functions, the recvFunctionalSnoop,
recvAtomicSnoop and recvTimingSnoop have a default implementation that
calls panic. This is to allow non-coherent master and slave ports to
not implement these functions.
2012-04-14 05:45:07 -04:00
Andreas Hansson
b00949d88b MEM: Enable multiple distributed generalized memories
This patch removes the assumption on having on single instance of
PhysicalMemory, and enables a distributed memory where the individual
memories in the system are each responsible for a single contiguous
address range.

All memories inherit from an AbstractMemory that encompasses the basic
behaviuor of a random access memory, and provides untimed access
methods. What was previously called PhysicalMemory is now
SimpleMemory, and a subclass of AbstractMemory. All future types of
memory controllers should inherit from AbstractMemory.

To enable e.g. the atomic CPU and RubyPort to access the now
distributed memory, the system has a wrapper class, called
PhysicalMemory that is aware of all the memories in the system and
their associated address ranges. This class thus acts as an
infinitely-fast bus and performs address decoding for these "shortcut"
accesses. Each memory can specify that it should not be part of the
global address map (used e.g. by the functional memories by some
testers). Moreover, each memory can be configured to be reported to
the OS configuration table, useful for populating ATAG structures, and
any potential ACPI tables.

Checkpointing support currently assumes that all memories have the
same size and organisation when creating and resuming from the
checkpoint. A future patch will enable a more flexible
re-organisation.

--HG--
rename : src/mem/PhysicalMemory.py => src/mem/AbstractMemory.py
rename : src/mem/PhysicalMemory.py => src/mem/SimpleMemory.py
rename : src/mem/physical.cc => src/mem/abstract_mem.cc
rename : src/mem/physical.hh => src/mem/abstract_mem.hh
rename : src/mem/physical.cc => src/mem/simple_mem.cc
rename : src/mem/physical.hh => src/mem/simple_mem.hh
2012-04-06 13:46:31 -04:00
William Wang
f9d403a7b9 MEM: Introduce the master/slave port sub-classes in C++
This patch introduces the notion of a master and slave port in the C++
code, thus bringing the previous classification from the Python
classes into the corresponding simulation objects and memory objects.

The patch enables us to classify behaviours into the two bins and add
assumptions and enfore compliance, also simplifying the two
interfaces. As a starting point, isSnooping is confined to a master
port, and getAddrRanges to slave ports. More of these specilisations
are to come in later patches.

The getPort function is not getMasterPort and getSlavePort, and
returns a port reference rather than a pointer as NULL would never be
a valid return value. The default implementation of these two
functions is placed in MemObject, and calls fatal.

The one drawback with this specific patch is that it requires some
code duplication, e.g. QueuedPort becomes QueuedMasterPort and
QueuedSlavePort, and BusPort becomes BusMasterPort and BusSlavePort
(avoiding multiple inheritance). With the later introduction of the
port interfaces, moving the functionality outside the port itself, a
lot of the duplicated code will disappear again.
2012-03-30 09:40:11 -04:00
Andreas Hansson
c2d2ea99e3 MEM: Split SimpleTimingPort into PacketQueue and ports
This patch decouples the queueing and the port interactions to
simplify the introduction of the master and slave ports. By separating
the queueing functionality from the port itself, it becomes much
easier to distinguish between master and slave ports, and still retain
the queueing ability for both (without code duplication).

As part of the split into a PacketQueue and a port, there is now also
a hierarchy of two port classes, QueuedPort and SimpleTimingPort. The
QueuedPort is useful for ports that want to leave the packet
transmission of outgoing packets to the queue and is used by both
master and slave ports. The SimpleTimingPort inherits from the
QueuedPort and adds the implemention of recvTiming and recvFunctional
through recvAtomic.

The PioPort and MessagePort are cleaned up as part of the changes.

--HG--
rename : src/mem/tport.cc => src/mem/packet_queue.cc
rename : src/mem/tport.hh => src/mem/packet_queue.hh
2012-03-22 06:36:27 -04:00
Ali Saidi
eaa994e7f6 cache: Allow main memory to be at disjoint address ranges. 2012-03-09 09:59:25 -05:00
Ali Saidi
d907d0ec72 Cache: Fix an issue with LRU when bonus block is used to complete transaction.
The block is never inserted because it's the one extra block in the cache, but
it can be invalidated twice in a row. In that case the block doesn't have a
new master id (beacuse it was never inserted), however it is valid and
the accounting goes wrong at that point.
2012-03-01 17:26:31 -06:00
Andreas Hansson
0cd0a8fdd3 MEM: Simplify cache ports preparing for master/slave split
This patch splits the two cache ports into a master (memory-side) and
slave (cpu-side) subclass of port with slightly different
functionality. For example, it is only the CPU-side port that blocks
incoming requests, and only the memory-side port that schedules send
events outside of what the transmit list dictates.

This patch simplifies the two classes by relying further on
SimpleTimingPort and also generalises the latter to better accommodate
the changes (introducing trySendTiming and scheduleSend). The
memory-side cache port overrides sendDeferredPacket to be able to not
only send responses from the transmit list, but also send requests
based on the MSHRs.

A follow on patch further simplifies the SimpleTimingPort and the
cache ports.
2012-02-24 11:52:49 -05:00
Andreas Hansson
5a9a743cfc MEM: Introduce the master/slave port roles in the Python classes
This patch classifies all ports in Python as either Master or Slave
and enforces a binding of master to slave. Conceptually, a master (such
as a CPU or DMA port) issues requests, and receives responses, and
conversely, a slave (such as a memory or a PIO device) receives
requests and sends back responses. Currently there is no
differentiation between coherent and non-coherent masters and slaves.

The classification as master/slave also involves splitting the dual
role port of the bus into a master and slave port and updating all the
system assembly scripts to use the appropriate port. Similarly, the
interrupt devices have to have their int_port split into a master and
slave port. The intdev and its children have minimal changes to
facilitate the extra port.

Note that this patch does not enforce any port typing in the C++
world, it merely ensures that the Python objects have a notion of the
port roles and are connected in an appropriate manner. This check is
carried when two ports are connected, e.g. bus.master =
memory.port. The following patches will make use of the
classifications and specialise the C++ ports into masters and slaves.
2012-02-13 06:43:09 -05:00
Dam Sunwoo
230540e655 mem: fix cache stats to use request ids correctly
This patch fixes the cache stats to use the new request ids.
Cache stats also display the requestor names in the vector subnames.
Most cache stats now include "nozero" and "nonan" flags to reduce the
amount of excessive cache stat dump. Also, simplified
incMissCount()/incHitCount() functions.
2012-02-12 16:07:39 -06:00
Ali Saidi
8aaa39e93d mem: Add a master ID to each request object.
This change adds a master id to each request object which can be
used identify every device in the system that is capable of issuing a request.
This is part of the way to removing the numCpus+1 stats in the cache and
replacing them with the master ids. This is one of a series of changes
that make way for the stats output to be changed to python.
2012-02-12 16:07:38 -06:00
Mrinmoy Ghosh
7e104a1af2 prefetcher: Make prefetcher a sim object instead of it being a parameter on cache 2012-02-12 16:07:38 -06:00
Gabe Black
ea8b347dc5 Merge with head, hopefully the last time for this batch. 2012-01-31 22:40:08 -08:00
Koan-Sin Tan
7d4f187700 clang: Enable compiling gem5 using clang 2.9 and 3.0
This patch adds the necessary flags to the SConstruct and SConscript
files for compiling using clang 2.9 and later (on Ubuntu et al and OSX
XCode 4.2), and also cleans up a bunch of compiler warnings found by
clang. Most of the warnings are related to hidden virtual functions,
comparisons with unsigneds >= 0, and if-statements with empty
bodies. A number of mismatches between struct and class are also
fixed. clang 2.8 is not working as it has problems with class names
that occur in multiple namespaces (e.g. Statistics in
kernel_stats.hh).

clang has a bug (http://llvm.org/bugs/show_bug.cgi?id=7247) which
causes confusion between the container std::set and the function
Packet::set, and this is currently addressed by not including the
entire namespace std, but rather selecting e.g. "using std::vector" in
the appropriate places.
2012-01-31 12:05:52 -05:00
Andreas Hansson
4590b91fb8 MEM: Remove the otherPort from the cache ports
This patch is a very straight-forward simplification, removing the
unecessary otherPort pointer from the cache port. The pointer was only
used to forward range changes, and the address range is fixed for the
cache. Removing the pointer simplifies the transition to master/slave
ports.
2012-01-31 11:51:19 -05:00
Gabe Black
c3d41a2def Merge with the main repo.
--HG--
rename : src/mem/vport.hh => src/mem/fs_translating_port_proxy.hh
rename : src/mem/translating_port.cc => src/mem/se_translating_port_proxy.cc
rename : src/mem/translating_port.hh => src/mem/se_translating_port_proxy.hh
2012-01-28 07:24:01 -08:00
William Wang
e731cf4c1d MEM: Remove the functional ports from the memory system
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.
2012-01-17 12:55:09 -06:00
Andreas Hansson
07cf9d914b MEM: Separate queries for snooping and address ranges
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.
2012-01-17 12:55:09 -06:00
Andreas Hansson
142380a373 MEM: Remove Port removeConn and MemObject deletePortRefs
Cleaning up and simplifying the ports and going towards a more strict
elaboration-time creation and binding of the ports.
2012-01-17 12:55:09 -06:00
Andreas Hansson
de34e49d15 MEM: Simplify ports by removing EventManager
This patch removes the inheritance of EventManager from the ports and
moves all responsibility for event queues to the owner. Eventually the
event manager should be the interface block, which could either be the
structural owner or a subblock like a LSQ in the O3 CPU for example.
2012-01-17 12:55:09 -06:00
Andreas Hansson
13ef7a5647 MEM: Differentiate functional cache accesses from CPU and memory
This patch changes the functionalAccess member function in the cache
model such that it is aware of what port the access came from, i.e. if
it came from the CPU side or from the memory side. By adding this
information, it is possible to respect the 'forwardSnoops' flag for
snooping requests coming from the memory side and not forward
them. This fixes an outstanding issue with the IO bus getting accesses
that have no valid destination port and also cleans up future changes
to the bus model.
2012-01-17 12:55:07 -06:00
Gabe Black
36a822f08e Merge with main repository. 2012-01-07 02:10:34 -08:00
Gabe Black
85424bef19 SE/FS: Get rid of includes of config/full_system.hh. 2011-11-18 02:20:22 -08:00
Gabe Black
71c4534ce9 SE/FS: Get rid of FULL_SYSTEM in mem. 2011-11-07 01:13:43 -08:00
Gabe Black
d735abe5da GCC: Get everything working with gcc 4.6.1.
And by "everything" I mean all the quick regressions.
2011-10-31 01:09:44 -07:00
Ali Saidi
0c29a97ba9 Prefetch: Don't prefetch if address is in the write queue.
Check that we're not currently writing back an address the prefetcher is trying
to prefetch before issuing it. We previously checked the mshrQueue and the cache
itself, but forgot to check the writeBuffer. This fixes a memory corrucption
issue with an L2 prefetcher.
2011-09-13 12:06:13 -05:00
Lisa Hsu
f6a2ef22ff Fix build for gcc-4.2 opt/fast
Even though the code is safe, compiler flags a warning here, which are treated as errors for fast/opt. I know it's redundant but it has no side effects and fixes the compile.
2011-09-01 15:25:54 -07:00
Ali Saidi
c9c2d979b8 Mem: Put prefetcher notify call before packet is deleted. 2011-08-19 15:08:08 -05:00
Ali Saidi
6779bd3e5d Prefetcher: Fix some memory leaks with the prefetcher. 2011-08-19 15:08:05 -05:00
Ali Saidi
147095cb08 Mem: Fix issue with prefetches originating at non-L1 caches getting stale data
Prefetch requests issued from the L2 or below wouldn't check if valid data is
present higher in the system. If a prefetch into the L2 occured at the same
time as writeback from a higher-level cache the dirty data could be replaced
in by unmodified data in memory.
2011-07-15 11:53:35 -05:00
Nathan Binkert
2b1aa35e20 scons: rename TraceFlags to DebugFlags 2011-06-02 17:36:21 -07:00
Nathan Binkert
63371c8664 stats: rename stats so they can be used as python expressions 2011-04-19 18:45:21 -07:00
Nathan Binkert
eddac53ff6 trace: reimplement the DTRACE function so it doesn't use a vector
At the same time, rename the trace flags to debug flags since they
have broader usage than simply tracing.  This means that
--trace-flags is now --debug-flags and --trace-help is now --debug-help
2011-04-15 10:44:32 -07:00
Nathan Binkert
39a055645f includes: sort all includes 2011-04-15 10:44:06 -07:00
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
Ali Saidi
f05f35df99 Includes: Don't include isa_traits.hh and use the TheISA namespace unless really needed. 2011-02-23 15:10:49 -06:00
Steve Reinhardt
6f1187943c Replace curTick global variable with accessor functions.
This step makes it easy to replace the accessor functions
(which still access a global variable) with ones that access
per-thread curTick values.
2011-01-07 21:50:29 -08:00
Ali Saidi
e1b9a815dd SCons: Support building without an ISA 2010-11-19 18:00:39 -06:00
Steve Reinhardt
45aebaccde cache: minor SC assertion fix
Thanks to Joe Gross for finding/testing this.
2010-10-18 13:05:15 -07:00
Gabe Black
930c653270 Mem: Change the CLREX flag to CLEAR_LL.
CLREX is the name of an ARM instruction, not a name for this generic flag.
2010-10-13 01:57:31 -07:00
Steve Reinhardt
e918536380 cache: improve coherence handling of writebacks
If we write back an exclusive copy, we now mark it
as such, so the cache receiving the writeback can
mark its copy as exclusive.  This avoids some
unnecessary upgrade requests when a cache later
tries to re-acquire exclusive access to the block.
2010-09-21 23:07:34 -07:00
Nathan Binkert
afafaf1dcb style: fix sorting of includes and whitespace in some files 2010-09-10 14:58:04 -07:00
Steve Reinhardt
1249728494 cache: fail SC when invalidated while waiting for bus
Corrects an oversight in cset f97b62be544f.  The fix there only
failed queued SCUpgradeReq packets that encountered an
invalidation, which meant that the upgrade had to reach the L2
cache.  To handle pending requests in the L1 we must similarly
fail StoreCondReq packets too.
2010-09-09 14:40:19 -04:00
Steve Reinhardt
6dc599ea9b mem: fix functional accesses to deal with coherence change
We can't just obliviously return the first valid cache block
we find any more... see comments for details.
2010-09-09 14:40:19 -04:00
Steve Reinhardt
71aca6d29e cache: coherence protocol enhancements & bug fixes
Allow lower-level caches (e.g., L2 or L3) to pass exclusive
copies to higher levels (e.g., L1).  This eliminates a lot
of unnecessary upgrade transactions on read-write sequences
to non-shared data.

Also some cleanup of MSHR coherence handling and multiple
bug fixes.
2010-09-09 14:40:18 -04:00
Steve Reinhardt
3ffc4505f7 mem: fix m5.fast compile bug in previous cset 2010-08-26 08:03:20 -07:00
Steve Reinhardt
1bf944be62 cache: fix a bug in atomic multilevel snoops 2010-08-25 21:55:55 -07:00
Steve Reinhardt
62c06c1403 mem: fix dumb typo in copyrights 2010-08-25 14:08:27 -07:00
Gene Wu
d6736384b2 MEM: Make CLREX a first class request operation and clear locks in caches when it in received 2010-08-23 11:18:41 -05:00
Gene Wu
23626d99af ARM: Make sure that software prefetch instructions can't change the state of the TLB 2010-08-23 11:18:41 -05:00
Ali Saidi
ac575a9d82 Compiler: Fixes for GCC 4.5. 2010-08-23 11:18:39 -05:00
Timothy M. Jones
28a5ea3f99 Port: Only indicate that a SimpleTimingPort is drained if its send event is
not scheduled, as well as the transmit list being empty.
2010-07-22 18:54:37 +01:00
Steve Reinhardt
897247d63b cache: fix bug in SC upgrade handling
This bug was introduced with the recent rework of SC
failure handling in cset f97b62be544f.
2010-07-08 17:56:13 -07:00
Steve Reinhardt
de2321de81 cache: fix longstanding prefetcher bug
Thanks to Joe Gross for pointing this out (again?).
Apologies to anyone who pointed it out earlier and
we didn't listen.
2010-06-22 21:29:43 -07:00
Steve Reinhardt
f24ae2ec2a cache: fail store conditionals when upgrade loses race
Requires new "SCUpgradeReq" message that marks upgrades
for store conditionals, so downstream caches can fail
these when they run into invalidations.
See http://www.m5sim.org/flyspray/task/197
2010-06-16 15:25:57 -07:00
Steve Reinhardt
57f2b7db11 cache: fix dirty bit setting
Only set the dirty bit when we actually write to a block
(not if we thought we might but didn't, as in a failed
SC or CAS).  This requires makeing sure the dirty bit
stays set when we get an exclusive (writable) copy
in a cache-to-cache transfer from another owner, which
n turn requires copying the mem-inhibit flag from
timing-mode requests to their associated responses.
2010-06-16 15:25:57 -07:00
Nathan Binkert
86a93fe7b9 stats: only consider a formula initialized if there is a formula 2010-06-15 01:18:36 -07:00
Lisa Hsu
7f3cd9a9fd cache stats: account for writebacks and/or device occupancy in the cache.
Plus, a minor bugfix that neglects to update blk->contextSrc in certain cases on a cache insert.
2010-02-24 13:46:55 -08:00
Lisa Hsu
1d3228481f cache: Make caches sharing aware and add occupancy stats.
On the config end, if a shared L2 is created for the system, it is
parameterized to have n sharers as defined by option.num_cpus. In addition to
making the cache sharing aware so that discriminating tag policies can make use
of context_ids to make decisions, I added an occupancy AverageStat and an occ %
stat to each cache so that you could know which contexts are occupying how much
cache on average, both in terms of blocks and percentage. Note that since
devices have context_id -1, having an array of occ stats that correspond to
each context_id will break here, so in FS mode I add an extra bucket for device
blocks. This bucket is explicitly not added in SE mode in order to not only
avoid ugliness in the stats.txt file, but to avoid broken stats (some formulas
break when a bucket is 0).
2010-02-23 09:34:22 -08:00
Lisa Hsu
2ad386f104 cache: pull CacheSet out of LRU so that other tags can use associative sets. 2010-02-23 09:33:09 -08:00
Lisa Hsu
8b4e8690b7 cache: make tags->insertBlock() and tags->accessBlock() context aware so that the cache can make context-specific decisions within their various tag policy implementations. 2010-01-12 10:53:02 -08:00
Steve Reinhardt
f679630788 Minor cleanup: Use the blockAlign() method where it applies in the cache. 2009-09-26 10:50:50 -07:00
Steve Reinhardt
72cfed4164 Force prefetches to check cache and MSHRs immediately prior to issue.
This prevents redundant prefetches from being issued, solving the
occasional 'needsExclusive && !blk->isWritable()' assertion failure
in cache_impl.hh that several people have run into.
Eliminates "prefetch_cache_check_push" flag, neither setting of
which really solved the problem.
2009-09-26 10:50:50 -07:00
Nathan Binkert
d9f39c8ce7 arch: nuke arch/isa_specific.hh and move stuff to generated config/the_isa.hh 2009-09-23 08:34:21 -07:00
Steve Reinhardt
a13a706a20 Fix setting of INST_FETCH flag for O3 CPU.
It's still broken in inorder.
Also enhance DPRINTFs in cache and physical memory so we
can see more easily whether it's getting set or not.
2009-08-01 22:50:14 -07:00
Nathan Binkert
6faf377b53 types: clean up types, especially signed vs unsigned 2009-06-04 23:21:12 -07:00
Nathan Binkert
47877cf2db types: add a type for thread IDs and try to use it everywhere 2009-05-26 09:23:13 -07:00
Nathan Binkert
8d2e51c7f5 includes: sort includes again 2009-05-17 14:34:52 -07:00
Nathan Binkert
709d859530 includes: use base/types.hh not inttypes.h or stdint.h 2009-05-17 14:34:51 -07:00
Nathan Binkert
eef3a2e142 types: Move stuff for global types into src/base/types.hh
--HG--
rename : src/sim/host.hh => src/base/types.hh
2009-05-17 14:34:50 -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
Steve Reinhardt
3083268d60 request: rename INST_READ to INST_FETCH. 2009-04-20 18:54:02 -07:00
Gabe Black
bd6f2bb538 Mem: Change isLlsc to isLLSC. 2009-04-19 21:44:15 -07:00
Gabe Black
3e5f487663 Memory: Rename LOCKED for load locked store conditional to LLSC. 2009-04-19 04:25:01 -07:00
Steve Reinhardt
758bfe4eb5 cache: set dirty bit on swaps (oops!) 2009-03-11 23:05:26 -07:00
Steve Reinhardt
a94c68228a prefetch: don't panic on requests w/o contextID (e.g., writebacks). 2009-03-10 17:37:15 -07:00
Nathan Binkert
cc95b57390 stats: Fix all stats usages to deal with template fixes 2009-03-05 19:09:53 -08:00
Steve Reinhardt
89a7fb0393 Fixes to get prefetching working again.
Apparently we broke it with the cache rewrite and never noticed.
Thanks to Bao Yungang <baoyungang@gmail.com> for a significant part
of these changes (and for inspiring me to work on the rest).
Some other overdue cleanup on the prefetch code too.
2009-02-16 08:56:40 -08:00
Steve Reinhardt
640b415688 Cache: get rid of obsolete Tag methods.
I think readData() and writeData() were used for Erik's compression
work, but that code is gone, these aren't called anymore, and they
don't even really do what their names imply.
2008-11-14 14:14:35 -08:00
Steve Reinhardt
42bd460d7f Cache: Refactor packet forwarding a bit.
Makes adding write-through operations easier.
2008-11-10 14:10:28 -08:00
Lisa Hsu
c68032ddcb decouple eviction from insertion in the cache. 2008-11-04 11:35:58 -05:00
Lisa Hsu
4ab52cb986 Change the findBlock(addr, lat) to accessBlock, which I think has better connotations for what is really happening and how it should be used. 2008-11-04 11:35:57 -05:00
Lisa Hsu
dd99ff23c6 get rid of all instances of readTid() and getThreadNum(). Unify and eliminate
redundancies with threadId() as their replacement.
2008-11-04 11:35:42 -05:00
Lisa Hsu
d857faf073 Add in Context IDs to the simulator. From now on, cpuId is almost never used,
the primary identifier for a hardware context should be contextId().  The
concept of threads within a CPU remains, in the form of threadId() because
sometimes you need to know which context within a cpu to manipulate.
2008-11-02 21:57:07 -05:00
Lisa Hsu
8788d703f8 s/cpu_id/cpuId in o3 (to be consistent and match style), also fix some typos in
comments.
2008-10-23 16:49:17 -04:00
Lisa Hsu
546a6c0c1b probe function no longer used anywhere. 2008-10-23 16:49:13 -04:00
Lisa Hsu
7a28ab2d18 remove the totally obsolete split cache 2008-10-23 16:11:28 -04:00
Lisa Hsu
90e40ca982 This function declaration isn't used anywhere.
HG: user: Lisa Hsu <hsul@eecs.umich.edu> HG: branch default HG: changed
src/mem/cache/cache.hh
2008-10-14 17:22:03 -04:00
Nathan Binkert
e06321091d eventq: convert all usage of events to use the new API.
For now, there is still a single global event queue, but this is
necessary for making the steps towards a parallelized m5.
2008-10-09 04:58:24 -07:00
Ali Saidi
3a3e356f4e style: Remove non-leading tabs everywhere they shouldn't be. Developers should configure their editors to not insert tabs 2008-09-10 14:26:15 -04:00
Steve Reinhardt
caaac16803 Backed out changeset 94a7bb476fca: caused memory leak. 2008-06-28 13:19:38 -04:00
Steve Reinhardt
6b45238316 Generate more useful error messages for unconnected ports.
Force all non-default ports to provide a name and an
owner in the constructor.
2008-06-21 01:04:43 -04:00
Steve Reinhardt
024ec4c5c3 Get rid of bogus cache assertion.
I was asserting that the only reason you would defer targets is if
a write came in while you had an outstanding read miss, but there's
another case where you could get a read access after you've snooped
an invalidation and buffered it because it applies to a prior
outstanding miss.
2008-06-13 01:29:20 -04:00
Ali Saidi
e71a5270a2 Make sure that output files are always checked success before they're used.
Make OutputDirectory::resolve() private and change the functions using
resolve() to instead use create().

--HG--
extra : convert_revision : 36d4be629764d0c4c708cec8aa712cd15f966453
2008-05-15 19:10:26 -04:00
Steve Reinhardt
29be31ce31 Fix handling of writeback-induced writebacks in atomic mode.
--HG--
extra : convert_revision : 4fa64f8a929f1aa36a9d5a71b8d1816b497aca4c
2008-03-25 10:01:21 -04:00
Steve Reinhardt
93ab43288a Don't FastAlloc MSHRs since we don't allocate them on the fly.
--HG--
extra : convert_revision : 02775cfb460afe6df0df0938c62cccd93a71e775
2008-03-24 01:08:02 -04:00
Steve Reinhardt
407710d387 Fix cache problem with writes to tempBlock
getting wrong writeback address.

--HG--
extra : convert_revision : 023dfb69c227c13a69bfe2744c6af75a45828b0b
2008-03-22 22:17:15 -04:00
Steve Reinhardt
b051ae6acc Fix a few Packet memory leaks.
--HG--
extra : convert_revision : 00db19f0698c0786f0dff561eea9217860a5a05a
2008-03-17 03:08:28 -04:00
Steve Reinhardt
19c367fa8f Fix subtle cache bug where read could return stale data
if a prior write miss arrived while an even earlier
read miss was still outstanding.

--HG--
extra : convert_revision : 4924e145829b2ecf4610b88d33f4773510c6801a
2008-03-15 05:03:55 -07:00
Steve Reinhardt
e6d6adc731 Revamp cache timing access mshr check to make stats sane again.
--HG--
extra : convert_revision : 37009b8ee536807073b5a5ca07ed1d097a496aea
2008-02-26 22:03:28 -08:00
Steve Reinhardt
bdf3323915 Cache: better comments particularly regarding writeback situation.
--HG--
extra : convert_revision : 59ff9ee63ee0fec5a7dfc27b485b737455ccf362
2008-02-26 20:17:26 -08:00
Steve Reinhardt
4597a71cef Make L2+ caches allocate new block for writeback misses
instead of forwarding down the line.

--HG--
extra : convert_revision : b0d6e7862c92ea7a2d21f817d30398735e7bb8ba
2008-02-16 14:58:03 -05:00
Steve Reinhardt
9d7a69c582 Fix #include lines for renamed cache files.
--HG--
extra : convert_revision : b5008115dc5b34958246608757e69a3fa43b85c5
2008-02-10 14:45:25 -08:00
Steve Reinhardt
d56e77c180 Rename cache files for brevity and consistency with rest of tree.
--HG--
rename : src/mem/cache/base_cache.cc => src/mem/cache/base.cc
rename : src/mem/cache/base_cache.hh => src/mem/cache/base.hh
rename : src/mem/cache/cache_blk.cc => src/mem/cache/blk.cc
rename : src/mem/cache/cache_blk.hh => src/mem/cache/blk.hh
rename : src/mem/cache/cache_builder.cc => src/mem/cache/builder.cc
rename : src/mem/cache/miss/mshr.cc => src/mem/cache/mshr.cc
rename : src/mem/cache/miss/mshr.hh => src/mem/cache/mshr.hh
rename : src/mem/cache/miss/mshr_queue.cc => src/mem/cache/mshr_queue.cc
rename : src/mem/cache/miss/mshr_queue.hh => src/mem/cache/mshr_queue.hh
rename : src/mem/cache/prefetch/base_prefetcher.cc => src/mem/cache/prefetch/base.cc
rename : src/mem/cache/prefetch/base_prefetcher.hh => src/mem/cache/prefetch/base.hh
rename : src/mem/cache/prefetch/ghb_prefetcher.cc => src/mem/cache/prefetch/ghb.cc
rename : src/mem/cache/prefetch/ghb_prefetcher.hh => src/mem/cache/prefetch/ghb.hh
rename : src/mem/cache/prefetch/stride_prefetcher.cc => src/mem/cache/prefetch/stride.cc
rename : src/mem/cache/prefetch/stride_prefetcher.hh => src/mem/cache/prefetch/stride.hh
rename : src/mem/cache/prefetch/tagged_prefetcher.cc => src/mem/cache/prefetch/tagged.cc
rename : src/mem/cache/prefetch/tagged_prefetcher.hh => src/mem/cache/prefetch/tagged.hh
rename : src/mem/cache/tags/base_tags.cc => src/mem/cache/tags/base.cc
rename : src/mem/cache/tags/base_tags.hh => src/mem/cache/tags/base.hh
rename : src/mem/cache/tags/Repl.py => src/mem/cache/tags/iic_repl/Repl.py
rename : src/mem/cache/tags/repl/gen.cc => src/mem/cache/tags/iic_repl/gen.cc
rename : src/mem/cache/tags/repl/gen.hh => src/mem/cache/tags/iic_repl/gen.hh
rename : src/mem/cache/tags/repl/repl.hh => src/mem/cache/tags/iic_repl/repl.hh
extra : convert_revision : ff7a35cc155a8d80317563c45cebe405984eac62
2008-02-10 14:15:42 -08:00
Geoffrey Blake
f9c54d5a4b Temporary fix for ll/sc bug see flyspray task for more info:
http://www.m5sim.org/flyspray/task/197

Signed-off by: Ali Saidi <saidi@eecs.umich.edu>

--HG--
extra : convert_revision : cdeece7e3163de9abf2c6c7435f1bc93570fab81
2008-01-06 00:19:45 -05:00
Steve Reinhardt
6c5a3ab8b2 Add ReadRespWithInvalidate to handle multi-level coherence situation
where we defer a response to a read from a far-away cache A, then later
defer a ReadExcl from a cache B on the same bus as us.  We'll assert
MemInhibit in both cases, but in the latter case MemInhibit will keep
the invalidation from reaching cache A.  This special response tells
cache A that it gets the block to satisfy its read, but must immediately
invalidate it.

--HG--
extra : convert_revision : f85c8b47bb30232da37ac861b50a6539dc81161b
2008-01-02 15:22:38 -08:00
Steve Reinhardt
bf9b3821bd Mark cache-to-cache MSHRs as downstreamPending when necessary.
Don't mark upstream MSHR as pending if downstream MSHR is already in service.

--HG--
extra : convert_revision : e1c135ff00217291db58ce8a06ccde34c403d37f
2008-01-02 15:18:33 -08:00
Steve Reinhardt
538da9e24d Don't DPRINTF in the middle of a PrintReq.
--HG--
extra : convert_revision : 6358c014d14a19a34111c39827b05987507544bb
2008-01-02 14:42:42 -08:00
Steve Reinhardt
cde5a79eab Additional comments and helper functions for PrintReq.
--HG--
extra : convert_revision : 7eadf9b7db8c0289480f771271b6efe2400006d4
2008-01-02 13:46:22 -08:00
Steve Reinhardt
3952e41ab1 Add functional PrintReq command for memory-system debugging.
--HG--
extra : convert_revision : 73b753e57c355b7e6873f047ddc8cb371c3136b7
2008-01-02 12:20:15 -08:00
Steve Reinhardt
659aef3eb8 Fix formatting and comments in cache_impl.hh
--HG--
extra : convert_revision : 26d71cca5420ad03e16bf174e15dabe7f902da41
2008-01-02 12:15:48 -08:00
Steve Reinhardt
7d83cf35e1 Tweak check for writable block fill.
--HG--
extra : convert_revision : c04281bcfc4cd23c7613aeccb21dc74452bcc951
2007-11-16 20:10:33 -08:00
Steve Reinhardt
f03a62008a Fix bug on exclusive response to ReadReq with pending WriteReq.
--HG--
extra : convert_revision : 5429cd7ca84cf6348813a4607fa16f76aa5df7e0
2007-11-16 20:10:32 -08:00
Ali Saidi
c8123cef1b Cache: Fix for OS X 10.5 compiling.
--HG--
extra : convert_revision : ba3c33ed524367280eefc096177d767168ac2cf6
2007-11-04 18:57:36 -05:00
Steve Reinhardt
90f42bf3ad Merge in bus DPRINTF changes.
--HG--
extra : convert_revision : 3bbd7c0745b31bb2a628b604ab1627cd9c61643c
2007-10-31 00:39:16 -07:00
Ali Saidi
538fae951b Traceflags: Add SCons function to created a traceflag instead of having one file with them all.
--HG--
extra : convert_revision : 427f6bd8f050861ace3bc0d354a1afa5fc8319e6
2007-10-31 01:21:54 -04:00
Steve Reinhardt
76c4c5fabc mem: clean up bus/cache DPRINTFs a bit
Not so much noise on failed sends, and more complete
info when grepping a trace using an address.

--HG--
extra : convert_revision : 05a8261c9452072ca08b906200c6322b33e2b9f1
2007-09-16 16:46:38 -07:00
Miles Kaufmann
54cc0053f0 params: Deprecate old-style constructors; update most SimObject constructors.
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
2007-08-30 15:16:59 -04:00
Gabe Black
7227ab5f22 Merge with head
--HG--
extra : convert_revision : cc73b9aaf73e9dacf52f3350fa591e67ca4ccee6
2007-08-26 21:45:40 -07:00
Ali Saidi
02353a60ee MemorySystem: Fix the use of ?: to produce correct results.
--HG--
extra : convert_revision : 31aad7170b35556a4c984f4ebc013137d55d85eb
2007-08-12 19:43:54 -04:00
Ali Saidi
06a9f58c68 DMA: Add IOCache and fix bus bridge to optionally only send requests one
way so a cache can handle partial block requests for i/o devices.

--HG--
extra : convert_revision : a68b5ae826731bc87ed93eb7ef326a2393053964
2007-08-10 16:14:01 -04:00
Steve Reinhardt
62aa1d7f55 cache: get rid of obsolete params from python.
--HG--
extra : convert_revision : cd40e0ef938ef6da1cccedf7be01c3ac5b4883fb
2007-08-03 03:51:13 -04:00
Steve Reinhardt
2f93db6f95 memory system: fix functional access bug.
Make sure not to keep processing functional accesses
after they've been responded to.
Also use checkFunctional() return value instead of checking
packet command field where possible, mostly just for consistency.

--HG--
extra : convert_revision : 29fc76bc18731bd93a4ed05a281297827028ef75
2007-07-29 20:17:03 -07:00
Steve Reinhardt
0cbcb715e0 cache/memtest: fixes for functional accesses.
--HG--
extra : convert_revision : 688ba4d882cad2c96cf44c9e46999f74266e02ee
2007-07-27 12:46:45 -07:00
Steve Reinhardt
01c9d34a0b cache: Get rid of unused variable.
--HG--
extra : convert_revision : 394adc12fbd7ea10280a1b8d6bc3cb15ee019f27
2007-07-27 03:51:15 -04:00
Nathan Binkert
f0fef8f850 Merge python and x86 changes with cache branch
--HG--
extra : convert_revision : e06a950964286604274fba81dcca362d75847233
2007-07-26 23:15:49 -07:00
Steve Reinhardt
6b73ff43ff Have owner respond to UpgradeReq to avoid race.
--HG--
extra : convert_revision : 30916fca6978c73d8a14558f2d7288c1eab54ad4
2007-07-26 17:04:17 -07:00
Steve Reinhardt
c3bf59dcb9 Add downward express snoops for invalidations.
--HG--
extra : convert_revision : 4916fa9721d727d8416ad8c07df3a8171d02b2b4
2007-07-26 17:04:17 -07:00
Steve Reinhardt
f1b5c8fb57 Continue snooping after a writeback is encountered.
--HG--
extra : convert_revision : 8411338a6c0fdd7072dd32bdffacdace62d5de90
2007-07-26 17:04:16 -07:00
Steve Reinhardt
c1097d06f7 Can't block on memInhibit packets
(now that bus no longer filters them for us).

--HG--
extra : convert_revision : 34e7eaf5ee1e739f5557a2d417e569ed2ceb14b3
2007-07-25 07:47:37 -07:00
Steve Reinhardt
1f9ea6e122 A couple more minor bug fixes for multilevel coherence.
--HG--
extra : convert_revision : 370f9e34911157765be6fd49e826fa1af589b466
2007-07-23 22:28:40 -07:00
Nathan Binkert
abc76f20cb Major changes to how SimObjects are created and initialized. Almost all
creation and initialization now happens in python.  Parameter objects
are generated and initialized by python.  The .ini file is now solely for
debugging purposes and is not used in construction of the objects in any
way.

--HG--
extra : convert_revision : 7e722873e417cb3d696f2e34c35ff488b7bff4ed
2007-07-23 21:51:38 -07:00
Steve Reinhardt
82e2a35576 Replace lowerMSHRPending flag with more robust scheme
based on following Packet senderState links.

--HG--
extra : convert_revision : 9027d59bd7242aa0e4275bf94d8b1fb27bd59d79
2007-07-22 21:43:38 -07:00
Steve Reinhardt
1c2d5f5e64 Replace DeferredSnoop flag with LowerMSHRPending flag.
Turns out DeferredSnoop isn't quite the right bit of info
we needed... see new comment in cache_impl.hh.

--HG--
extra : convert_revision : a38de8c1677a37acafb743b7074ef88b21d3b7be
2007-07-22 08:09:24 -07:00
Steve Reinhardt
1edd143b68 A few minor non-debug compilation issues.
--HG--
extra : convert_revision : d59a5cad6187a2229dddd1a48282ebd2923d1d8d
2007-07-22 03:07:26 -04:00
Steve Reinhardt
92ce2b5974 Deal with invalidations intersecting outstanding upgrades.
If the invalidation beats the upgrade at a lower level
then the upgrade must be converted to a read exclusive
"in the field".
Restructure target list & deferred target list to
factor out some common code.

--HG--
extra : convert_revision : 7bab4482dd6c48efdb619610f0d3778c60ff777a
2007-07-21 18:18:42 -07:00
Steve Reinhardt
9117860094 Several more fixes for multi-level timing coherence.
- Add "deferred snoop" flag to Packet so upper-level caches
  can distinguish whether lower-level cache request was
  in-service or not at the time of the original snoop.
- Revamp response handling to properly handle deferred snoops
  on non-cache-fill requests (i.e. upgrades).
- Make sure forwarded writebacks are kept in write buffer at
  lower-level caches so they get snooped properly.

--HG--
extra : convert_revision : 17f8a3772a1ae31a16991a53f8225ddf54d31fc9
2007-07-21 13:45:17 -07:00
Steve Reinhardt
a25f3ac67f Forward cache-to-cache responses through other caches.
--HG--
extra : convert_revision : 5b6a02255bccd98b00949703cf4ba4b221553cea
2007-07-17 06:33:28 -07:00
Steve Reinhardt
ff13827ccb Assert that an mshr has a target in getTarget().
--HG--
extra : convert_revision : 08091670fc319876012ed139fcd2584c364a980c
2007-07-17 06:23:11 -07:00
Steve Reinhardt
884807a68a Fix up a bunch of multilevel coherence issues.
Atomic mode seems to work.  Timing is closer but not there yet.

--HG--
extra : convert_revision : 0dea5c3d4b973d009e9d4a4c21b9cad15961d56f
2007-07-15 20:11:06 -07:00
Steve Reinhardt
15a51d0cae Add CacheRepl trace flag and move a couple DPRINTFs to it.
--HG--
extra : convert_revision : 31724d19ebdf2cdc2a2bafff83d17845b3a0b183
2007-07-14 13:28:52 -07:00
Steve Reinhardt
abd194df5c Move a couple of DPRINTFs from Cache to CachePort.
--HG--
extra : convert_revision : 55a0d26660aeb8f63b41897d53e6b2d1f0a163be
2007-07-14 13:16:58 -07:00
Steve Reinhardt
7cd6c7ee05 Fix & tweak DPRINTFs for tracediff w/new cache code.
Note that we should *not* print pointer values in DPRINTFs as
these needlessly clutter tracediff output.

--HG--
extra : convert_revision : 25a448f1b3ac8d453a717a104ad6dc0112fb30bb
2007-07-14 11:48:30 -07:00
Steve Reinhardt
4738649e32 Delete packets when we're done with them.
--HG--
extra : convert_revision : b8894d26e1ca7a6c9b736500accdaa53bfb09558
2007-07-03 00:40:31 -04:00
Steve Reinhardt
4b68652c87 Couple more minor bug fixes for FS timing mode.
src/cpu/simple/timing.cc:
    Fix another SC problem.
src/mem/cache/cache_impl.hh:
    Forgot to call makeTimingResponse() on uncached timing responses.

--HG--
extra : convert_revision : 5a5a58ca2053e4e8de2133205bfd37de15eb4209
2007-07-02 13:57:45 -07:00
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
Steve Reinhardt
f0c4dd7920 Factor out a little more common code.
--HG--
extra : convert_revision : 626255a91679d534030c91bcdb4fc1bed36ceb9b
2007-06-30 13:56:25 -07:00
Steve Reinhardt
6babda7123 Fix up a few statistics problems.
Stats pretty much line up with old code, except:
- bug in old code included L1 latency in L2 miss time, making it too high
- UniCoherence did cache-to-cache transfers even from non-owner caches,
so occasionally the icache would get a block from the dcache not the L2
- L2 can now receive ReadExReq from L1 since L1s have coherence

--HG--
extra : convert_revision : 5052c1a1767b5a662f30a88f16012165a73b791c
2007-06-30 13:34:16 -07:00
Steve Reinhardt
6ab53415ef Get rid of Packet result field. Error responses are
now encoded in cmd field.

--HG--
extra : convert_revision : d67819b7e3ee4b9a5bf08541104de0a89485e90b
2007-06-30 10:16:18 -07:00
Steve Reinhardt
9117c94f9c Get rid of coherence protocol object.
--HG--
extra : convert_revision : 4ff144342dca23af9a12a2169ca318a002654b42
2007-06-27 20:54:13 -07:00
Steve Reinhardt
c4903e0882 Revamp replacement-of-upgrade handling.
--HG--
extra : convert_revision : 9bc09d8ae6d50e6dfbb4ab21514612f9aa102a2e
2007-06-26 23:30:30 -07:00
Steve Reinhardt
1b20df5607 Handle deferred snoops better.
--HG--
extra : convert_revision : 703da6128832eb0d5cfed7724e5105f4b3fe4f90
2007-06-26 22:23:10 -07:00
Steve Reinhardt
69ff6d9163 cache_impl.hh:
Change target overflow from assertion to warning.

src/mem/cache/cache_impl.hh:
    Change target overflow from assertion to warning.

--HG--
extra : convert_revision : ceca990ed916bbf96dedd4836c40df522803f173
2007-06-26 18:01:22 -04:00
Steve Reinhardt
7dacbcf492 Handle replacement of block with pending upgrade.
src/mem/cache/tags/lru.cc:
    Add some replacement DPRINTFs

--HG--
extra : convert_revision : 7993ec24d6af7e7774d04ce36f20e3f43f887fd9
2007-06-26 14:53:15 -07:00
Steve Reinhardt
f697e959a1 Couple minor bug fixes...
src/mem/cache/cache_impl.hh:
    Handle grants with no packet.
src/mem/cache/miss/mshr.cc:
    Fix MSHR snoop hit handling.

--HG--
extra : convert_revision : f365283afddaa07cb9e050b2981ad6a898c14451
2007-06-25 22:23:29 -07:00
Steve Reinhardt
529f12a531 Get rid of requestCauses. Use timestamped queue to make
sure we don't re-request bus prematurely.  Use callback to
avoid calling sendRetry() recursively within recvTiming.

--HG--
extra : convert_revision : a907a2781b4b00aa8eb1ea7147afc81d6b424140
2007-06-25 06:47:05 -07:00
Steve Reinhardt
47bce8ef78 Better handling of deferred targets.
--HG--
extra : convert_revision : 0fbc28c32c1eeb3dd672df14c1d53bd516f81d0f
2007-06-24 17:32:31 -07:00
Steve Reinhardt
bdd5fd20fb Fixes to hitLatency, blocking, buffer allocation.
Single-cpu timing mode seems to work now.

--HG--
extra : convert_revision : 720f6172df18a1c941e5bd0e8fdfbd686c13c7ad
2007-06-22 09:24:07 -07:00
Steve Reinhardt
eff122797b Merge vm1.(none):/home/stever/bk/newmem-head
into  vm1.(none):/home/stever/bk/newmem-cache2

--HG--
extra : convert_revision : 9002940097a166c8442ae1adf41b974227968920
2007-06-21 12:03:22 -07:00
Steve Reinhardt
83af0fdcf5 Getting closer...
configs/example/memtest.py:
    Add progress interval option.
src/base/traceflags.py:
    Add MemTest flag.
src/cpu/memtest/memtest.cc:
    Clean up tracing.
src/cpu/memtest/memtest.hh:
    Get rid of unused code.

--HG--
extra : convert_revision : 92bd8241a6c90bfb6d908e5a5132cbdb500cbb87
2007-06-21 11:59:17 -07:00
Nathan Binkert
b47737dde7 Make sure all parameters have default values if they're
supposed to and make sure parameters have the right type.
Also make sure that any object that should be an intermediate
type has the right options set.

--HG--
extra : convert_revision : d56910628d9a067699827adbc0a26ab629d11e93
2007-06-20 08:14:11 -07:00
Steve Reinhardt
d69a763833 Merge vm1.(none):/home/stever/bk/newmem-head
into  vm1.(none):/home/stever/bk/newmem-cache2

configs/example/memtest.py:
    Hand merge redundant changes.

--HG--
extra : convert_revision : a2e36be254bf052024f37bcb23b5209f367d37e1
2007-06-17 17:30:24 -07:00
Steve Reinhardt
35cf19d441 More major reorg of cache. Seems to work for atomic mode now,
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
2007-06-17 17:27:53 -07:00
Nathan Binkert
e9936a6250 More realistic parameters
--HG--
extra : convert_revision : aaa4ea2b7c97df3d6b731e9252984b45715e9d6f
2007-06-09 22:43:08 -07:00
Steve Reinhardt
075f4b108a Merge vm1.(none):/home/stever/bk/newmem-head
into  vm1.(none):/home/stever/bk/newmem-cache2

--HG--
extra : convert_revision : fba7efd444e1ca9738385dd4662a33feab357e79
2007-05-27 21:34:37 -07:00
Nathan Binkert
35147170f9 Move SimObject python files alongside the C++ and fix
the SConscript files so that only the objects that are
actually available in a given build are compiled in.
Remove a bunch of files that aren't used anymore.

--HG--
rename : src/python/m5/objects/AlphaTLB.py => src/arch/alpha/AlphaTLB.py
rename : src/python/m5/objects/SparcTLB.py => src/arch/sparc/SparcTLB.py
rename : src/python/m5/objects/BaseCPU.py => src/cpu/BaseCPU.py
rename : src/python/m5/objects/FuncUnit.py => src/cpu/FuncUnit.py
rename : src/python/m5/objects/IntrControl.py => src/cpu/IntrControl.py
rename : src/python/m5/objects/MemTest.py => src/cpu/memtest/MemTest.py
rename : src/python/m5/objects/FUPool.py => src/cpu/o3/FUPool.py
rename : src/python/m5/objects/FuncUnitConfig.py => src/cpu/o3/FuncUnitConfig.py
rename : src/python/m5/objects/O3CPU.py => src/cpu/o3/O3CPU.py
rename : src/python/m5/objects/OzoneCPU.py => src/cpu/ozone/OzoneCPU.py
rename : src/python/m5/objects/SimpleOzoneCPU.py => src/cpu/ozone/SimpleOzoneCPU.py
rename : src/python/m5/objects/BadDevice.py => src/dev/BadDevice.py
rename : src/python/m5/objects/Device.py => src/dev/Device.py
rename : src/python/m5/objects/DiskImage.py => src/dev/DiskImage.py
rename : src/python/m5/objects/Ethernet.py => src/dev/Ethernet.py
rename : src/python/m5/objects/Ide.py => src/dev/Ide.py
rename : src/python/m5/objects/Pci.py => src/dev/Pci.py
rename : src/python/m5/objects/Platform.py => src/dev/Platform.py
rename : src/python/m5/objects/SimConsole.py => src/dev/SimConsole.py
rename : src/python/m5/objects/SimpleDisk.py => src/dev/SimpleDisk.py
rename : src/python/m5/objects/Uart.py => src/dev/Uart.py
rename : src/python/m5/objects/AlphaConsole.py => src/dev/alpha/AlphaConsole.py
rename : src/python/m5/objects/Tsunami.py => src/dev/alpha/Tsunami.py
rename : src/python/m5/objects/T1000.py => src/dev/sparc/T1000.py
rename : src/python/m5/objects/Bridge.py => src/mem/Bridge.py
rename : src/python/m5/objects/Bus.py => src/mem/Bus.py
rename : src/python/m5/objects/MemObject.py => src/mem/MemObject.py
rename : src/python/m5/objects/PhysicalMemory.py => src/mem/PhysicalMemory.py
rename : src/python/m5/objects/BaseCache.py => src/mem/cache/BaseCache.py
rename : src/python/m5/objects/CoherenceProtocol.py => src/mem/cache/coherence/CoherenceProtocol.py
rename : src/python/m5/objects/Repl.py => src/mem/cache/tags/Repl.py
rename : src/python/m5/objects/Process.py => src/sim/Process.py
rename : src/python/m5/objects/Root.py => src/sim/Root.py
rename : src/python/m5/objects/System.py => src/sim/System.py
extra : convert_revision : 173f8764bafa8ef899198438fa5573874e407321
2007-05-27 19:21:17 -07:00
Steve Reinhardt
da46364b18 Fix getDeviceAddressRanges() to get snooping right.
--HG--
extra : convert_revision : 2aeab25ef955ab9db7b968786faff227239fbbe4
2007-05-22 07:30:55 -07:00
Steve Reinhardt
0484867d85 Merge vm1.(none):/home/stever/bk/newmem-head
into  vm1.(none):/home/stever/bk/newmem-cache2

src/mem/cache/base_cache.hh:
    Manual conflict resolution.

--HG--
extra : convert_revision : 5ebfd7abb4f978caa88bf43d25935869edfc6b9f
2007-05-22 06:36:01 -07:00
Steve Reinhardt
9048c695a0 Another pass of minor changes in preparation for new protocol.
src/mem/cache/cache_impl.hh:
src/mem/cache/coherence/simple_coherence.hh:
    Get rid of old invalidate propagation logic in preparation
    for new multilevel snoop protocol.
src/mem/cache/coherence/coherence_protocol.cc:
    L2 cache now has protocol, so protocol must handle ReadExReq
    coming in from the CPU side.
src/mem/cache/miss/mshr_queue.cc:
    Assertion is failing, so let's take it out for now.
src/mem/packet.cc:
src/mem/packet.hh:
    Add WritebackAck command.
    Reorganize enum to put responses next to corresponding requests.
    Get rid of unused WriteReqNoAck.

--HG--
extra : convert_revision : 24c519846d161978123f9aa029ae358a41546c73
2007-05-22 06:29:48 -07:00
Steve Reinhardt
41241799ae Change getDeviceAddressRanges to use bool for snoop arg.
--HG--
extra : convert_revision : 832e52ba80cbab2f5bb6d5b5977a499d41b4d638
2007-05-21 23:36:09 -07:00
Steve Reinhardt
792d5b9e5e First set of changes for reorganized cache coherence support.
Compiles but doesn't work... committing just so I can merge
(stupid bk!).

src/mem/bridge.cc:
    Get rid of SNOOP_COMMIT.
src/mem/bus.cc:
src/mem/packet.hh:
    Get rid of SNOOP_COMMIT & two-pass snoop.
    First bits of EXPRESS_SNOOP support.
src/mem/cache/base_cache.cc:
src/mem/cache/base_cache.hh:
src/mem/cache/cache.hh:
src/mem/cache/cache_impl.hh:
src/mem/cache/miss/blocking_buffer.cc:
src/mem/cache/miss/miss_queue.cc:
src/mem/cache/prefetch/base_prefetcher.cc:
    Big reorg of ports and port-related functions & events.
src/mem/cache/cache.cc:
src/mem/cache/cache_builder.cc:
src/mem/cache/coherence/SConscript:
    Get rid of UniCoherence object.

--HG--
extra : convert_revision : 7672434fa3115c9b1c94686f497e57e90413b7c3
2007-05-18 22:35:04 -07:00
Steve Reinhardt
224ae7813d Merge vm1.(none):/home/stever/bk/newmem-head
into  vm1.(none):/home/stever/bk/newmem-cache2

--HG--
extra : convert_revision : 8a501917daf81021212d136b4ebbfa059b452a13
2007-05-14 13:54:22 -07:00
Ali Saidi
ea4e6f2e3d add uglyiness to fix dmas
src/dev/io_device.cc:
    extra printing and assertions
src/mem/bridge.hh:
    deal with packets only satisfying part of a request by making many requests
src/mem/cache/cache_impl.hh:
    make the cache try to satisfy a functional request from the cache above it before checking itself

--HG--
extra : convert_revision : 1df52ab61d7967e14cc377c560495430a6af266a
2007-05-14 16:14:59 -04:00
Steve Reinhardt
fecae03a0b Eliminate unused PacketPtr from BaseCache's
RequestEvent and ResponseEvent.
Compiles but not tested.

--HG--
extra : convert_revision : cc791e7adea5b0406e986a0076edba51856b9105
2007-05-13 23:09:10 -07:00
Steve Reinhardt
df3fc36fa9 Split BaseCache::CacheEvent into RequestEvent and ResponseEvent.
Compiles but not tested.

--HG--
extra : convert_revision : 4e1e28c4b87721ccfcf35a5ea62c1fa324acbaf9
2007-05-13 22:58:06 -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
Ali Saidi
3c608bf765 add a backoff algorithm when nacks are received by devices
add seperate response buffers and request queue sizes in bus bridge
add delay to respond to a nack in the bus bridge

src/dev/i8254xGBe.cc:
src/dev/ide_ctrl.cc:
src/dev/ns_gige.cc:
src/dev/pcidev.hh:
src/dev/sinic.cc:
    add backoff delay parameters
src/dev/io_device.cc:
src/dev/io_device.hh:
    add a backoff algorithm when nacks are received.
src/mem/bridge.cc:
src/mem/bridge.hh:
    add seperate response buffers and request queue sizes
    add a new parameters to specify how long before a nack in ready to go after a packet that needs to be nacked is received
src/mem/cache/cache_impl.hh:
    assert on the
src/mem/tport.cc:
    add a friendly assert to make sure the packet was inserted into the list

--HG--
extra : convert_revision : 3595ad932015a4ce2bb72772da7850ad91bd09b1
2007-05-09 18:20:24 -04:00
Ali Saidi
d0ea8ff088 The MemoryObject tha owns a port should delete it if it so chooses when 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
2007-04-04 13:56:38 -04:00
Ron Dreslinski
8a674bed5c Call compare and Swap on the target, not the response.
--HG--
extra : convert_revision : 522805fe2c9abaa5ba0d9262ad98f841d90f6452
2007-03-28 14:38:11 -05:00
Ron Dreslinski
55614caecc Merge zizzer:/bk/newmem
into  zazzer.eecs.umich.edu:/z/rdreslin/m5bk/head

--HG--
extra : convert_revision : 45b64b1564f0e4958d8441455f87b2b185324d55
2007-03-27 17:06:07 -05:00
Ron Dreslinski
6b8cd9d06d First Pass At Cmp/Swap in caches
--HG--
extra : convert_revision : 211bfb7c6a59e9e120dae1600d4754baaf231332
2007-03-27 17:05:25 -05:00
Kevin Lim
047f77102b Merge ktlim@zizzer:/bk/newmem
into  zamp.eecs.umich.edu:/z/ktlim2/clean/tmp/clean2

src/cpu/base_dyn_inst.hh:
    Hand merge.  Line is no longer needed because it's handled in the ISA.

--HG--
extra : convert_revision : 0be4067aa38759a5631c6940f0167d48fde2b680
2007-03-23 13:20:19 -04:00
Kevin Lim
78de00091b 3 memory system fixes:
1. Update packet's flags properly when a snoop happens
2. Don't allow accesses to read a block's data if the block has outstanding MSHRs.  This avoids a RAW hazard in MP systems that the memory system was not detecting properly earlier (a write required a block to upgrade, and while the upgrade was outstanding, a read came along and read old data).
3. Update MSHR's request upon a response being handled.  If the MSHR has more targets than it can respond to in one cycle, then its request must be properly updated to the new head of the targets list.

src/mem/bus.cc:
    Update packet's flags properly upon snoop.
src/mem/cache/cache_impl.hh:
    Be sure to not allow accesses to a block with outstanding MSHRs.
src/mem/cache/miss/miss_queue.cc:
    Update MSHR's request upon a response being handled.

--HG--
extra : convert_revision : 76a9abc610ca3f1904f075ad21637148a41982d6
2007-03-23 13:09:37 -04:00
Ron Dreslinski
2a02087eb5 Clean up more memory leaks
--HG--
extra : convert_revision : 32d1b23200752fe5fcdcbafb586f50bbe6db3bf3
2007-03-12 15:59:54 -05:00
Ron Dreslinski
6415c47a5b Fix some of the memory leaks related to writebacks
src/cpu/memtest/memtest.cc:
    Add the [] to a delete to make it work correctly
src/mem/cache/cache_impl.hh:
    Fix one of the memory leaks

--HG--
extra : convert_revision : 64c7465c68a084efe38a62419205518b24d852a7
2007-03-12 13:15:32 -05:00
Nathan Binkert
1aef5c06a3 Rework the way SCons recurses into subdirectories, making it
automatic.  The point is that now a subdirectory can be added
to the build process just by creating a SConscript file in it.
The process has two passes.  On the first pass, all subdirs
of the root of the tree are searched for SConsopts files.
These files contain any command line options that ought to be
added for a particular subdirectory.  On the second pass,
all subdirs of the src directory are searched for SConscript
files.  These files describe how to build any given subdirectory.
I have added a Source() function.  Any file (relative to the
directory in which the SConscript resides) passed to that
function is added to the build.  Clean up everything to take
advantage of Source().
function is added to the list of files to be built.

--HG--
extra : convert_revision : 103f6b490d2eb224436688c89cdc015211c4fd30
2007-03-10 23:00:54 -08:00
Ali Saidi
027dfa01e6 stop m5 from leaking like a sieve
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
2007-03-08 18:57:15 -05:00
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
Ali Saidi
b5a4d95811 rename store conditional stuff as extra data so it can be used for conditional swaps as well
Add support for a twin 64 bit int load
Add Memory barrier and write barrier flags as appropriate
Make atomic memory ops atomic

src/arch/alpha/isa/mem.isa:
src/arch/alpha/locked_mem.hh:
src/cpu/base_dyn_inst.hh:
src/mem/cache/cache_blk.hh:
src/mem/cache/cache_impl.hh:
    rename store conditional stuff as extra data so it can be used for conditional swaps as well
src/arch/alpha/types.hh:
src/arch/mips/types.hh:
src/arch/sparc/types.hh:
    add a largest read data type for statically allocating read buffers in atomic simple cpu
src/arch/isa_parser.py:
    Add support for a twin 64 bit int load
src/arch/sparc/isa/decoder.isa:
    Make atomic memory ops atomic
    Add Memory barrier and write barrier flags as appropriate
src/arch/sparc/isa/formats/mem/basicmem.isa:
    add post access code block and define a twinload format for twin loads
src/arch/sparc/isa/formats/mem/blockmem.isa:
    remove old microcoded twin load coad
src/arch/sparc/isa/formats/mem/mem.isa:
    swap.isa replaces the code in loadstore.isa
src/arch/sparc/isa/formats/mem/util.isa:
    add a post access code block
src/arch/sparc/isa/includes.isa:
    need bigint.hh for Twin64_t
src/arch/sparc/isa/operands.isa:
    add a twin 64 int type
src/cpu/simple/atomic.cc:
src/cpu/simple/atomic.hh:
src/cpu/simple/base.hh:
src/cpu/simple/timing.cc:
    add support for twinloads
    add support for swap and conditional swap instructions
    rename store conditional stuff as extra data so it can be used for conditional swaps as well
src/mem/packet.cc:
src/mem/packet.hh:
    Add support for atomic swap memory commands
src/mem/packet_access.hh:
    Add endian conversion function for Twin64_t type
src/mem/physical.cc:
src/mem/physical.hh:
src/mem/request.hh:
    Add support for atomic swap memory commands
    Rename sc code to extradata

--HG--
extra : convert_revision : 69d908512fb34a4e28b29a6e58b807fb1a6b1656
2007-02-12 13:06:30 -05:00
Steve Reinhardt
6b37bb6710 Merge zizzer.eecs.umich.edu:/bk/newmem
into  vm1.(none):/home/stever/bk/newmem-head

--HG--
extra : convert_revision : c2350e01a052114a264f26551b13fca03a835c61
2007-02-07 10:55:14 -08:00
Steve Reinhardt
997fc505a8 Make memory commands dense again to avoid cache stat table explosion.
Created MemCmd class to wrap enum and provide handy methods to
check attributes, convert to string/int, etc.

--HG--
extra : convert_revision : 57f147ad893443e3a2040c6d5b4cdb1a8033930b
2007-02-07 10:53:37 -08:00
Steve Reinhardt
51e54f519d Minor DPRINTF fixes.
--HG--
extra : convert_revision : 41956c9a480163ecac7807982215027e8ff1a4a9
2007-02-06 21:53:05 -08:00
Kevin Lim
310d8f0992 Fix for LL/SC that Ron sent me.
--HG--
extra : convert_revision : b3510a23d8a9eb466939f38491a109c3a65a7363
2007-02-06 15:54:44 -05:00
Ali Saidi
63fdabf191 make our code a little more standards compliant
pretty close to compiling w/ suns compiler

briefly:
add dummy return after panic()/fatal()
split out flags by compiler vendor
include cstring and cmath where appropriate
use std namespace for string ops

SConstruct:
    Add code to detect compiler and choose cflags based on detected compiler
    Fix zlib check to work with suncc
src/SConscript:
    split out flags by compiler vendor
src/arch/sparc/isa/decoder.isa:
    use correct namespace for sqrt
src/arch/sparc/isa/formats/basic.isa:
    add dummy return around panic
src/arch/sparc/isa/formats/integerop.isa:
    use correct namespace for stringops
src/arch/sparc/isa/includes.isa:
    include cstring and cmath where appropriate
src/arch/sparc/isa_traits.hh:
    remove dangling comma
src/arch/sparc/system.cc:
    dummy return to make sun cc front end happy
src/arch/sparc/tlb.cc:
src/base/compression/lzss_compression.cc:
    use std namespace for string ops
src/arch/sparc/utility.hh:
    no reason to say something is unsigned unsigned int
src/base/compression/null_compression.hh:
    dummy returns to for suncc front end
src/base/cprintf.hh:
    use standard variadic argument syntax instead of gnuc specefic renaming
src/base/hashmap.hh:
    don't need to define hash for suncc
src/base/hostinfo.cc:
    need stdio.h for sprintf
src/base/loader/object_file.cc:
    munmap is in std namespace not null
src/base/misc.hh:
    use M5 generic noreturn macros
    use standard variadic macro __VA_ARGS__
src/base/pollevent.cc:
    we need file.h for file flags
src/base/random.cc:
    mess with include files to make suncc happy
src/base/remote_gdb.cc:
    malloc memory for function instead of having a non-constant in an array size
src/base/statistics.hh:
    use std namespace for floor
src/base/stats/text.cc:
    include math.h for rint (cmath won't work)
src/base/time.cc:
    use suncc version of ctime_r
src/base/time.hh:
    change macro to work with both gcc and suncc
src/base/timebuf.hh:
    include cstring from memset and use std::
src/base/trace.hh:
    change variadic macros to be normal format
src/cpu/SConscript:
    add dummy returns where appropriate
src/cpu/activity.cc:
    include cstring for memset
src/cpu/exetrace.hh:
    include cstring fro memcpy
src/cpu/simple/base.hh:
    add dummy return for panic
src/dev/baddev.cc:
src/dev/pciconfigall.cc:
src/dev/platform.cc:
src/dev/sparc/t1000.cc:
    add dummy return where appropriate
src/dev/ide_atareg.h:
    make define work for both gnuc and suncc
src/dev/io_device.hh:
    add dummy returns where approirate
src/dev/pcidev.hh:
src/mem/cache/cache_impl.hh:
src/mem/cache/miss/blocking_buffer.cc:
src/mem/cache/tags/lru.hh:
src/mem/cache/tags/split.hh:
src/mem/cache/tags/split_lifo.hh:
src/mem/cache/tags/split_lru.hh:
src/mem/dram.cc:
src/mem/packet.cc:
src/mem/port.cc:
    include cstring for string ops
src/dev/sparc/mm_disk.cc:
    add dummy return where appropriate
    include cstring for string ops
src/mem/cache/miss/blocking_buffer.hh:
src/mem/port.hh:
    Add dummy return where appropriate
src/mem/cache/tags/iic.cc:
    cast hastSets to double for log() call
src/mem/physical.cc:
    cast pmemAddr to char* for munmap
src/sim/byteswap.hh:
    make define work for suncc and gnuc

--HG--
extra : convert_revision : ef8a1f1064e43b6c39838a85c01aee4f795497bd
2007-01-26 18:48:51 -05:00
Steve Reinhardt
9d7db8bb2b Streamline Cache/Tags interface: get rid of redundant functions,
don't regenerate address from block in cache so that tags can
turn around and use address to look up block again.

--HG--
extra : convert_revision : 171018aa6e331d98399c4e5ef24e173c95eaca28
2006-12-18 23:07:52 -08:00
Steve Reinhardt
f655932700 No need to template prefetcher on cache TagStore type.
--HG--
rename : src/mem/cache/prefetch/tagged_prefetcher_impl.hh => src/mem/cache/prefetch/tagged_prefetcher.cc
extra : convert_revision : 56c0b51e424a3a6590332dba4866e69a1ad19598
2006-12-18 21:53:06 -08:00
Steve Reinhardt
1428b0de7d Get rid of generic CacheTags object (fold back into Cache).
--HG--
extra : convert_revision : 8769bd8cc358ab3cbbdbbcd909b2e0f1515e09da
2006-12-18 20:47:12 -08:00
Steve Reinhardt
d172e1576a Split CachePort class into CpuSidePort and MemSidePort
and push those into derived Cache template class to
eliminate a few layers of virtual functions and
conditionals ("if (isCpuSide) { ... }" etc.).

--HG--
extra : convert_revision : cb1b88246c95b36aa0cf26d534127d3714ddb774
2006-12-13 22:04:36 -08:00