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7 Commits

Author SHA1 Message Date
Bobby R. Bruce
d11c40dcac misc: Run pre-commit run --all-files 
This ensures `isort` is applied to all files in the repo.

Change-Id: Ib7ced1c924ef1639542bf0d1a01c5737f6ba43e9
 2023-11-29 22:06:41 -08:00
Ayaz Akram
32df25e426 mem: HBMCtrl changes to allow PC data buses to be in different states 
This change updates the HBMCtrl such that both pseudo channels
can be in separate states (read or write) at the same time. In
addition, the controller queues are now always split in two
halves for both pseudo channels.

Change-Id: Ifb599e611ad99f6c511baaf245bad2b5c9210a86
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/65491
Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
Maintainer: Jason Lowe-Power <power.jg@gmail.com>
Tested-by: kokoro <noreply+kokoro@google.com>
 2023-05-26 20:08:00 +00:00
Bobby R. Bruce
787204c92d python: Apply Black formatter to Python files 
The command executed was `black src configs tests util`.

Change-Id: I8dfaa6ab04658fea37618127d6ac19270028d771
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/47024
Maintainer: Bobby Bruce <bbruce@ucdavis.edu>
Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
Reviewed-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Tested-by: kokoro <noreply+kokoro@google.com>
 2022-08-03 09:10:41 +00:00
Ayaz Akram
ba2deb39e3 mem: Update the default HBMCtrl config 
This change updates the default HBMCtrl configuration
to not use partitioned queues, as the unified queue
shows better performance than the partitioned and has
been better tested so far.

Change-Id: I44dd407d8d2af52b8dad5861aeb0ae83e3934d16
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/61470
Maintainer: Jason Lowe-Power <power.jg@gmail.com>
Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
Tested-by: kokoro <noreply+kokoro@google.com>
 2022-07-21 19:44:14 +00:00
Ayaz Akram
c685cfcb7e mem: Add support for min reads per switch 
Similar to minimum writes per switch, this change adds support
for minimum reads per switch. This helps to reduce the read to
write transitions, which helps mixed read/write traffic patterns.

Change-Id: I1f9619c984ba14d2cca09f43bc16863283ea64a5
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/59735
Maintainer: Jason Lowe-Power <power.jg@gmail.com>
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Wendy Elsasser <welsasser@rambus.com>
Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
 2022-06-06 18:31:06 +00:00
Ayaz Akram
84949089a1 mem: Add HBM2 pseudo channel interface configuration 
Change-Id: I5826e50a35ee9dda054a164cfda616ca0ffe82e5
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/59734
Maintainer: Jason Lowe-Power <power.jg@gmail.com>
Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Wendy Elsasser <welsasser@rambus.com>
 2022-06-06 18:31:06 +00:00
Ayaz Akram
60317f99fe mem: Add an HBM memory controller 
This change adds an hbm memory controller in gem5,
which is capable of controlling two hbm memory interfaces
(two pseudo channels). HBMCtrl inherits from MemCtrl
and tries to reuse most of the MemCtrl functions for two
different dram interfaces. Morever, a notion of pseudo
channel is added in the memory interface itself, to make
sure that the scheduling decisions in any interface are
based on the pkts for that pseudo channel only. Also, the
command bandwidth checks are divided into row and column
commands, which are shared by both pseudo channels.

Change-Id: Ie2ee8183d0f7f744aff2ed05cabc75fec3ea2171
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/59732
Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
Maintainer: Jason Lowe-Power <power.jg@gmail.com>
Reviewed-by: Wendy Elsasser <welsasser@rambus.com>
Tested-by: kokoro <noreply+kokoro@google.com>
 2022-06-06 18:31:06 +00:00