Searched hist:3221 (Results 1 - 11 of 11) sorted by relevance

/gem5/src/sim/
H A Deventq_impl.hh12040:8cd9d09aac7a Wed May 10 05:51:00 EDT 2017 Andreas Sandberg <andreas.sandberg@arm.com> sim: Add hooks to implement event reference counting

We currently only support deleting an event if it is triggered and not
re-scheduled. This is fine for most native code. However, there are
cases where Python needs to count references to make sure that the
Python object stays live while the native object is live.

Generalise the mechanism used to implement by adding reference
counting hooks to the event base class:

* Event::acquire() / Event::acquireImpl()
* Event::release() / Event::releaseImpl()

These calls can be used to implement both reference counting and the
existing AutoDelete functionality. The default implementation in Event
maintains backwards compatibility with the existing AutoDelete feature
by ignoring acquireImpl() and deleting the event on releaseImpl() if
it isn't scheduled anymore.

Since AutoDelete functionality is no longer the only way events can be
managed, this change introduces the new Managed flag. This flag
activates automatic memory management. The acquireImpl()/releaseImpl()
methods are only called from acquire()/release() it is set. To
maintain backwards compatibility, AutoDelete is used as an alias for
Managed.

Change-Id: I5637984c906a9d44c22780712cf1c521b8297149
Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-by: Curtis Dunham <curtis.dunham@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/3221
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
H A Deventq.cc12040:8cd9d09aac7a Wed May 10 05:51:00 EDT 2017 Andreas Sandberg <andreas.sandberg@arm.com> sim: Add hooks to implement event reference counting

We currently only support deleting an event if it is triggered and not
re-scheduled. This is fine for most native code. However, there are
cases where Python needs to count references to make sure that the
Python object stays live while the native object is live.

Generalise the mechanism used to implement by adding reference
counting hooks to the event base class:

* Event::acquire() / Event::acquireImpl()
* Event::release() / Event::releaseImpl()

These calls can be used to implement both reference counting and the
existing AutoDelete functionality. The default implementation in Event
maintains backwards compatibility with the existing AutoDelete feature
by ignoring acquireImpl() and deleting the event on releaseImpl() if
it isn't scheduled anymore.

Since AutoDelete functionality is no longer the only way events can be
managed, this change introduces the new Managed flag. This flag
activates automatic memory management. The acquireImpl()/releaseImpl()
methods are only called from acquire()/release() it is set. To
maintain backwards compatibility, AutoDelete is used as an alias for
Managed.

Change-Id: I5637984c906a9d44c22780712cf1c521b8297149
Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-by: Curtis Dunham <curtis.dunham@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/3221
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
H A Deventq.hh12040:8cd9d09aac7a Wed May 10 05:51:00 EDT 2017 Andreas Sandberg <andreas.sandberg@arm.com> sim: Add hooks to implement event reference counting

We currently only support deleting an event if it is triggered and not
re-scheduled. This is fine for most native code. However, there are
cases where Python needs to count references to make sure that the
Python object stays live while the native object is live.

Generalise the mechanism used to implement by adding reference
counting hooks to the event base class:

* Event::acquire() / Event::acquireImpl()
* Event::release() / Event::releaseImpl()

These calls can be used to implement both reference counting and the
existing AutoDelete functionality. The default implementation in Event
maintains backwards compatibility with the existing AutoDelete feature
by ignoring acquireImpl() and deleting the event on releaseImpl() if
it isn't scheduled anymore.

Since AutoDelete functionality is no longer the only way events can be
managed, this change introduces the new Managed flag. This flag
activates automatic memory management. The acquireImpl()/releaseImpl()
methods are only called from acquire()/release() it is set. To
maintain backwards compatibility, AutoDelete is used as an alias for
Managed.

Change-Id: I5637984c906a9d44c22780712cf1c521b8297149
Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-by: Curtis Dunham <curtis.dunham@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/3221
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
/gem5/src/cpu/o3/
H A Dthread_context_impl.hh3221:669a04468c0d Sun Oct 08 00:53:00 EDT 2006 Kevin Lim <ktlim@umich.edu> Updates to O3 CPU. It should now work in FS mode, although sampling still has a bug.

src/cpu/o3/commit_impl.hh:
Fixes for compile and sampling.
src/cpu/o3/cpu.cc:
Deallocate and activate threads properly. Also hopefully fix being able to use caches while switching over.
src/cpu/o3/cpu.hh:
Fixes for deallocating and activating threads.
src/cpu/o3/fetch_impl.hh:
src/cpu/o3/lsq_unit.hh:
Handle getting back a BadAddress result from the access.
src/cpu/o3/iew_impl.hh:
More debug output.
src/cpu/o3/lsq_unit_impl.hh:
Fixup store conditional handling (still a bit of a hack, but works now).

Also handle getting back a BadAddress result from the access.
src/cpu/o3/thread_context_impl.hh:
Deallocate context now records if the context should be fully removed.
H A Dlsq_unit.hh3221:669a04468c0d Sun Oct 08 00:53:00 EDT 2006 Kevin Lim <ktlim@umich.edu> Updates to O3 CPU. It should now work in FS mode, although sampling still has a bug.

src/cpu/o3/commit_impl.hh:
Fixes for compile and sampling.
src/cpu/o3/cpu.cc:
Deallocate and activate threads properly. Also hopefully fix being able to use caches while switching over.
src/cpu/o3/cpu.hh:
Fixes for deallocating and activating threads.
src/cpu/o3/fetch_impl.hh:
src/cpu/o3/lsq_unit.hh:
Handle getting back a BadAddress result from the access.
src/cpu/o3/iew_impl.hh:
More debug output.
src/cpu/o3/lsq_unit_impl.hh:
Fixup store conditional handling (still a bit of a hack, but works now).

Also handle getting back a BadAddress result from the access.
src/cpu/o3/thread_context_impl.hh:
Deallocate context now records if the context should be fully removed.
H A Diew_impl.hh3221:669a04468c0d Sun Oct 08 00:53:00 EDT 2006 Kevin Lim <ktlim@umich.edu> Updates to O3 CPU. It should now work in FS mode, although sampling still has a bug.

src/cpu/o3/commit_impl.hh:
Fixes for compile and sampling.
src/cpu/o3/cpu.cc:
Deallocate and activate threads properly. Also hopefully fix being able to use caches while switching over.
src/cpu/o3/cpu.hh:
Fixes for deallocating and activating threads.
src/cpu/o3/fetch_impl.hh:
src/cpu/o3/lsq_unit.hh:
Handle getting back a BadAddress result from the access.
src/cpu/o3/iew_impl.hh:
More debug output.
src/cpu/o3/lsq_unit_impl.hh:
Fixup store conditional handling (still a bit of a hack, but works now).

Also handle getting back a BadAddress result from the access.
src/cpu/o3/thread_context_impl.hh:
Deallocate context now records if the context should be fully removed.
H A Dcommit_impl.hh3221:669a04468c0d Sun Oct 08 00:53:00 EDT 2006 Kevin Lim <ktlim@umich.edu> Updates to O3 CPU. It should now work in FS mode, although sampling still has a bug.

src/cpu/o3/commit_impl.hh:
Fixes for compile and sampling.
src/cpu/o3/cpu.cc:
Deallocate and activate threads properly. Also hopefully fix being able to use caches while switching over.
src/cpu/o3/cpu.hh:
Fixes for deallocating and activating threads.
src/cpu/o3/fetch_impl.hh:
src/cpu/o3/lsq_unit.hh:
Handle getting back a BadAddress result from the access.
src/cpu/o3/iew_impl.hh:
More debug output.
src/cpu/o3/lsq_unit_impl.hh:
Fixup store conditional handling (still a bit of a hack, but works now).

Also handle getting back a BadAddress result from the access.
src/cpu/o3/thread_context_impl.hh:
Deallocate context now records if the context should be fully removed.
H A Dlsq_unit_impl.hh3221:669a04468c0d Sun Oct 08 00:53:00 EDT 2006 Kevin Lim <ktlim@umich.edu> Updates to O3 CPU. It should now work in FS mode, although sampling still has a bug.

src/cpu/o3/commit_impl.hh:
Fixes for compile and sampling.
src/cpu/o3/cpu.cc:
Deallocate and activate threads properly. Also hopefully fix being able to use caches while switching over.
src/cpu/o3/cpu.hh:
Fixes for deallocating and activating threads.
src/cpu/o3/fetch_impl.hh:
src/cpu/o3/lsq_unit.hh:
Handle getting back a BadAddress result from the access.
src/cpu/o3/iew_impl.hh:
More debug output.
src/cpu/o3/lsq_unit_impl.hh:
Fixup store conditional handling (still a bit of a hack, but works now).

Also handle getting back a BadAddress result from the access.
src/cpu/o3/thread_context_impl.hh:
Deallocate context now records if the context should be fully removed.
H A Dcpu.hh3221:669a04468c0d Sun Oct 08 00:53:00 EDT 2006 Kevin Lim <ktlim@umich.edu> Updates to O3 CPU. It should now work in FS mode, although sampling still has a bug.

src/cpu/o3/commit_impl.hh:
Fixes for compile and sampling.
src/cpu/o3/cpu.cc:
Deallocate and activate threads properly. Also hopefully fix being able to use caches while switching over.
src/cpu/o3/cpu.hh:
Fixes for deallocating and activating threads.
src/cpu/o3/fetch_impl.hh:
src/cpu/o3/lsq_unit.hh:
Handle getting back a BadAddress result from the access.
src/cpu/o3/iew_impl.hh:
More debug output.
src/cpu/o3/lsq_unit_impl.hh:
Fixup store conditional handling (still a bit of a hack, but works now).

Also handle getting back a BadAddress result from the access.
src/cpu/o3/thread_context_impl.hh:
Deallocate context now records if the context should be fully removed.
H A Dcpu.cc3221:669a04468c0d Sun Oct 08 00:53:00 EDT 2006 Kevin Lim <ktlim@umich.edu> Updates to O3 CPU. It should now work in FS mode, although sampling still has a bug.

src/cpu/o3/commit_impl.hh:
Fixes for compile and sampling.
src/cpu/o3/cpu.cc:
Deallocate and activate threads properly. Also hopefully fix being able to use caches while switching over.
src/cpu/o3/cpu.hh:
Fixes for deallocating and activating threads.
src/cpu/o3/fetch_impl.hh:
src/cpu/o3/lsq_unit.hh:
Handle getting back a BadAddress result from the access.
src/cpu/o3/iew_impl.hh:
More debug output.
src/cpu/o3/lsq_unit_impl.hh:
Fixup store conditional handling (still a bit of a hack, but works now).

Also handle getting back a BadAddress result from the access.
src/cpu/o3/thread_context_impl.hh:
Deallocate context now records if the context should be fully removed.
H A Dfetch_impl.hh3221:669a04468c0d Sun Oct 08 00:53:00 EDT 2006 Kevin Lim <ktlim@umich.edu> Updates to O3 CPU. It should now work in FS mode, although sampling still has a bug.

src/cpu/o3/commit_impl.hh:
Fixes for compile and sampling.
src/cpu/o3/cpu.cc:
Deallocate and activate threads properly. Also hopefully fix being able to use caches while switching over.
src/cpu/o3/cpu.hh:
Fixes for deallocating and activating threads.
src/cpu/o3/fetch_impl.hh:
src/cpu/o3/lsq_unit.hh:
Handle getting back a BadAddress result from the access.
src/cpu/o3/iew_impl.hh:
More debug output.
src/cpu/o3/lsq_unit_impl.hh:
Fixup store conditional handling (still a bit of a hack, but works now).

Also handle getting back a BadAddress result from the access.
src/cpu/o3/thread_context_impl.hh:
Deallocate context now records if the context should be fully removed.

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