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12 Commits

Author SHA1 Message Date
Giacomo Travaglini
d1d90c529c configs: Stop using a PTW cache before L2 in Arm configs 
This implementation of a walk cache does not allow to skip walks as it
is a simple cache placed in front of the table walker.
It was meant to provide a faster retrieval of page table descriptors
than fetching them from L2 or memory.

This is not needed anymore for Arm as from [1] we implement
partial translation caching in Arm TLBs.

[1]: JIRA: https://gem5.atlassian.net/browse/GEM5-1108

Change-Id: I00d44a4e3961e15602bf4352f2f42ddccf2b746b
Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Reviewed-by: Richard Cooper <richard.cooper@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/54243
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
Maintainer: Jason Lowe-Power <power.jg@gmail.com>
Tested-by: kokoro <noreply+kokoro@google.com>
 2021-12-16 09:00:53 +00:00
Giacomo Travaglini
a680b98eaf configs: Assign the host gid to the Process.gid in SE configs 
Some syscalls (like chown) can make use of the current process group id
(gid) to setup file ownership. If we just provide the default fake gid
([1]) we will encounter some problems when executing the syscall on the
host.

Example (guest) program:

gid_t prc_gid = getgid();
int res = chown(..., prc_gid);

By assigning the host gid to the guest we are sure we can successfully
execute syscalls from the gem5 process

[1]: https://github.com/gem5/gem5/blob/v21.1.0.2/src/sim/Process.py#L52

Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Change-Id: Ia09f44916def03f68f7605d72f323f03ec71bbe1
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/51767
Maintainer: Bobby R. Bruce <bbruce@ucdavis.edu>
Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
Tested-by: kokoro <noreply+kokoro@google.com>
 2021-10-20 09:27:34 +00:00
Andreas Sandberg
4d1a6fffd9 configs: Weed out old port terminology in Arm examples 
Stop using the deprecated port names in Arm example scripts.

Change-Id: I11fea3e0df945ac64075b647766570604b70cad8
Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/39582
Reviewed-by: Gabe Black <gabe.black@gmail.com>
Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
Maintainer: Jason Lowe-Power <power.jg@gmail.com>
Tested-by: kokoro <noreply+kokoro@google.com>
 2021-01-22 11:05:01 +00:00
Andreas Sandberg
206038912c configs: Remove Python 2 compatibility code in Arm configs 
Remove uses of six and imports from __future__ and use native Python 3
functionality instead.

Change-Id: If37718ba99def2d6f176604e20d4ebeda75474ad
Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/39581
Reviewed-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Reviewed-by: Richard Cooper <richard.cooper@arm.com>
Maintainer: Giacomo Travaglini <giacomo.travaglini@arm.com>
Tested-by: kokoro <noreply+kokoro@google.com>
 2021-01-22 11:05:01 +00:00
Gabe Black
b489e49c68 configs,tests: Update configs to use compatible SE workloads. 
If there's no more compatible workload than the base SEWorkload class it
will fall back to that for now.

Change-Id: Id27172c3074a7976823a891878ab9eecf6246c47
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/33901
Reviewed-by: Matthew Poremba <matthew.poremba@amd.com>
Maintainer: Gabe Black <gabeblack@google.com>
Tested-by: kokoro <noreply+kokoro@google.com>
 2020-10-13 04:59:04 +00:00
Gabe Black
3293926413 sim: Create a Workload object for SE mode. 
The workload object is still optional for the sake of compatibility,
even though it probably shouldn't be in the long term. If a simulation
is just a collection of components with nothing in particular running on
it, for instance driven by a traffic generator, should it even have a
System object in the first place?

Change-Id: I8bcda72bdfa3730248226fb62f0bba9a83243d95
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/33278
Reviewed-by: Matthew Poremba <matthew.poremba@amd.com>
Maintainer: Gabe Black <gabeblack@google.com>
Tested-by: kokoro <noreply+kokoro@google.com>
 2020-09-20 07:26:22 +00:00
Jason Lowe-Power
e2a510acef configs: Updates for python3 
Change-Id: Iab2f83716ea2cb19f06282f037314f2db843327a
Signed-off-by: Jason Lowe-Power <jason@lowepower.com>
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/29047
Maintainer: Bobby R. Bruce <bbruce@ucdavis.edu>
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
 2020-05-18 20:10:35 +00:00
Gabe Black
e9fcfb3c16 config: Delete authors lists from config files. 
Change-Id: I049f2e97ad00d76341c2aeeaa02279862a8a4d71
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/25416
Maintainer: Gabe Black <gabeblack@google.com>
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Daniel Carvalho <odanrc@yahoo.com.br>
 2020-02-17 10:06:07 +00:00
Daniel R. Carvalho
224da08be7 configs: Port MemConfig to the common object list 
Port MemConfig to use the common object list.

Change-Id: If421c2745ac3431718a5170314045b456fc64a90
Signed-off-by: Daniel R. Carvalho <odanrc@yahoo.com.br>
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/20592
Tested-by: kokoro <noreply+kokoro@google.com>
Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
 2019-10-01 06:15:03 +00:00
Andreas Sandberg
fe3e808495 configs: Use absolute import paths 
Use absoluate import paths to be Python 3 compatible. This also
imports absolute_import from __future__ to ensure that Python 2.7
behaves the same way as Python 3.

Change-Id: Ica06ed95814e9cd3e768b3e1785075e36f6e56d0
Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/16708
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
 2019-03-18 15:13:52 +00:00
Gabe Black
659900aedd config: Switch from the print statement to the print function. 
Change-Id: I701fa58cfcfa2767ce9ad24da314a053889878d0
Reviewed-on: https://gem5-review.googlesource.com/8762
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Reviewed-by: Anthony Gutierrez <anthony.gutierrez@amd.com>
Maintainer: Gabe Black <gabeblack@google.com>
 2018-03-06 23:39:43 +00:00
Gabor Dozsa
662d2cde83 config, arm: SE configuration for the ARM starter kit 
Add a full system example configuration for the ARM Research Starter
Kit on System Modeling. More information can be found at:
http://www.arm.com/ResearchEnablement/SystemModeling

Change-Id: Ia32a28eb713ba7050d790327ba6dbb73ec33b53a
Signed-off-by: Gabor Dozsa <gabor.dozsa@arm.com>
[ Minor cleanups and more documentation ]
Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/4203
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Maintainer: Jason Lowe-Power <jason@lowepower.com>
 2017-07-27 15:16:30 +00:00