Hi,
I believe this has been fixed by the following patch [1] which is currently
merged on the develop branch and will be part of v23.0.
Let me know if it fixes your problem
Kind Regards
Giacomo
[1]: https://gem5-review.googlesource.com/c/public/gem5/+/70697
Hi Jason,
So far only a subset of SVE2 instructions have been pushed/merged to develop
(some by me, some by Prajwal, here CCed)
Kind Regards
Giacomo
From: Jason Lowe-Power
Date: Friday, 2 June 2023 at 15:47
To: gem5 Developer List
Cc: Giacomo Travaglini
Subject: State of Arm SVE2 in gem5
Congrats to Jason and to everyone who’s making this possible!
About the naming, I wonder if we could provide a different python module per
ruby protocol.
That would allow us to avoid prefixing in favour of something like:
$from m5.objects.mi_example import L1Cache_Controller
or
$from
Hi Bobby,
No sure, maybe something weird on the XML side? It is weird though; the plot
plugin has been running for some days and this is the first time we are getting
this kind of error.
Let’s see if disabling it fixes the issue
Giacomo
From: Bobby Bruce
Date: Monday, 21 March 2022 at 19:05
Hi Jason,
https://gem5-review.googlesource.com/c/public/gem5/+/57349 might fix the
compiler-check failure (gcc-version-7)
Kind Regards
Giacomo
From: Jason Lowe-Power via gem5-dev
Date: Saturday, 5 March 2022 at 17:27
To: gem5 Developer List
Cc: Jason Lowe-Power
Subject: [gem5-dev] All
Hi Gabe,
A possible workaround could be to use the --bin-path option in testlib
Kind Regards
Giacomo
From: Gabe Black via gem5-dev
Date: Tuesday, 1 March 2022 at 04:10
To: gem5 Developer List
Cc: Gabe Black
Subject: [gem5-dev] resource downloader failure
Hi folks. I've been trying to run
Thanks Bobby,
Here are some examples:
https://gem5-review.googlesource.com/c/public/gem5/+/56426
https://gem5-review.googlesource.com/c/public/gem5/+/55964/6
https://gem5-review.googlesource.com/c/public/gem5/+/56303/1
(If you check the verification history of the last patch you can see it first
Hi all,
I am seeing a lot of failures on kokoro due to timeouts.
Have we recently added some extra tests to the quick/pre-submit regressions?
Kind Regards
Giacomo
IMPORTANT NOTICE: The contents of this email and any attachments are
confidential and may also be privileged. If you are not the
Hi Arthur, this is a known issue in disassembling and arises when multiple
register operands have different width. For example your load is likely using
the 64-bit SP as base register and loading the value into 32-bit w1.
Gem5 is not capturing this per-operand-width and it is reporting a single
> -Original Message-
> From: Gabe Black
> Sent: 12 October 2021 10:28
> To: Giacomo Travaglini
> Cc: gem5 Developer List
> Subject: Re: [gem5-dev] reduce the number of checkpoints in the ARM
> checkpoint test?
>
> Hi Giacomo. it's definitely minutes, probably between 5 and 10 per
>
Hi Gabe, are we talking about seconds or minutes (per run)?
In the latter case I agree we could reduce the max_number to 3.
If it is just saving us few seconds then it is probably not worth it IMHO
Kind Regards
Giacomo
> -Original Message-
> From: Gabe Black via gem5-dev
> Sent: 12
Hi Gabe,
>From an Arm perspective, could you make sure you are using the latest
>bootloader?
I remember there was a change some time ago which required the bootloader to be
rebuilt
You could either download latest tarball from
Hi Gabe,
> -Original Message-
> From: Gabe Black via gem5-dev
> Sent: 09 August 2021 11:02
> To: gem5 Developer List
> Cc: Gabe Black
> Subject: [gem5-dev] Re: overview/documentation/tests for vector register
> related stuff?
>
> I've done a bit of digging so far, and I think I've
This is great, thanks Gabe!
> -Original Message-
> From: Gabe Black via gem5-dev
> Sent: 25 July 2021 12:45
> To: gem5 Developer List ; Earl Ou
>
> Cc: Gabe Black
> Subject: [gem5-dev] "epic" Jira issue to track multi-ISA gem5
>
> To help lay out a roadmap and scope for my ongoing
Thanks Gabe,
The performance benefit is difficult to measure as the macro is not currently
used; it could provide negligible or no improvement at all depending on the
compiler and on where it could be used.
So the question is not whether it makes gem5 faster now, it is more about
giving our
Hi Gabe,
The DPRINTF_UNCONDITIONAL macro has been deprecated in develop [1] and the
deprecation is going to be official in v21.1.
As far as I understood, the reason why it has been deprecated is because it was
not used in gem5.
I am proposing to remove the deprecation. IMO that macro is
Hi all,
I agree with Daniel's analysis and solution, as enforcing snake_case for
namespaces would probably make everyone happy.
We could in theory adopt namespace aliases for backward compatibility, to
transition smoothly from one "convention" (PascalCase for namespaces is not
mentioned in our
Yes,
This is why I usually run using tests/gem5 as root directory
./tests/main.py [...] \
tests/gem5 <- root directory
Testlib is basically trying to load every python file it finds on its walk.
We should definitely add python unit tests to our presubmit runs IMHO. The
simplest way is via
My vote goes to 1 and A as well
My sole argument is consistency; in general I'd rather start a namespace with a
lowercase. So that when we have something
like a scope resolution we know we are dealing with a namespace and not a
class. But that's off-topic.
Namespace names are anyway not
Hi Gabe,
Apologies for the late reply; I was on vacation.
That is not a "problem" in testlib. It happens when regressions are aborted by
external forces (e.g. a timeout in Jenkins/kokoro); then the time field
of metadata doesn't get populated.
We should probably fix this by initializing time to
I see,
The VExpress_EMM(64) is an old platform and we are slowly removing its support.
It might be the problem is the prebuilt kernel not fully supporting the PCI IDE
controller, but this is just speculation.
May I suggest you to use a more up to date platform (VExpress_GEM5_V1 or
Thanks Jason, this will be fixed by:
https://gem5-review.googlesource.com/c/public/gem5/+/43746
Kind Regards
Giacomo
> -Original Message-
> From: Jason Lowe-Power
> Sent: 26 March 2021 15:51
> To: gem5 Developer List
> Cc: Giacomo Travaglini
> Subject: Re: [gem5-dev] Build failed in
Hi,
The stdout is not enough I am afraid to understand what went wrong.
Could you provide the content of the m5out/system.workload.dmesg file ?
Kind Regards
Giacomo
> -Original Message-
> From: Csq via gem5-dev
> Sent: 25 March 2021 03:40
> To: gem5-dev@gem5.org
> Cc:
gt; mailto:ja...@lowepower.com> > wrote:
>
>
> Hey Gabe,
>
> I love this idea! It would be nice if you could document the
> code as you go, too. It could serve as a good learning tool in the future.
>
> Cheers,
> Jason
>
>
> On Mon, Mar 1, 2021 at 7:56 AM
This is fixed by:
https://gem5-review.googlesource.com/c/public/gem5/+/42623
> -Original Message-
> From: jenkins-no-reply=gem5@mg.gem5.org reply=gem5@mg.gem5.org> On Behalf Of jenkins-no-reply--- via gem5-dev
> Sent: 09 March 2021 08:31
> To: gem5-dev@gem5.org
> Cc:
Hi devs,
In the past days I have been thinking about providing support for multiple non
consecutive ranges to the memory object (AbstractMemory).
I already have a working implementation; I just need to come up with a good
python interface for it.
I have opened a JIRA ticket [1] with my
kins script.
> On Thu, Mar 4, 2021 at 6:49 AM Giacomo Travaglini via gem5-dev d...@gem5.org <mailto:gem5-dev@gem5.org> > wrote:
>
>
> Hi Jason,
>
> This is great news. When you say it is not configurable, do you mean it
> is not possible to suppress warning/errors or d
> -Original Message-
> From: Gabe Black
> Sent: 04 March 2021 04:04
> To: Giacomo Travaglini
> Cc: gem5 Developer List
> Subject: Re: [gem5-dev] vector register indexing modes and renaming?
>
>
>
> On Mon, Mar 1, 2021 at 6:48 AM Giacomo Travaglini
> mailto:giacomo.travagl...@arm.com>
Hi Jason,
This is great news. When you say it is not configurable, do you mean it is not
possible to suppress warning/errors or do you
mean it is not possible to come up with custom rules?
As I presume it's the first case, I am wondering if a different linter might
provide such capabilities:
+2, +1, Merged
Giacomo
> -Original Message-
> From: Gabe Black via gem5-dev
> Sent: 27 February 2021 10:13
> To: gem5 Developer List
> Cc: Gabe Black
> Subject: [gem5-dev] de-templating the O3 CPU
>
> Hi folks. The O3 CPU uses templates pretty heavily, I think nominally to make
>
> -Original Message-
> From: Gabe Black
> Sent: 27 February 2021 05:47
> To: Giacomo Travaglini
> Cc: gem5 Developer List
> Subject: Re: [gem5-dev] vector register indexing modes and renaming?
>
> Another question/clarification:
>
> Does any data actually get shared between the two
> -Original Message-
> From: Gabe Black
> Sent: 24 February 2021 15:24
> To: Giacomo Travaglini
> Cc: gem5 Developer List
> Subject: Re: [gem5-dev] vector register indexing modes and renaming?
>
> So, I started really diving into the interfaces in ThreadContext and
> ExecContext
>
Hi Gabe
> -Original Message-
> From: Gabe Black via gem5-dev
> Sent: 23 February 2021 08:54
> To: gem5 Developer List
> Cc: Gabe Black
> Subject: [gem5-dev] vector register indexing modes and renaming?
>
> Hey ARM folks. Could someone please explain to me what the deal is with the
>
Hi Bobby,
It would be nice if we could get this in as well:
https://gem5-review.googlesource.com/c/public/gem5/+/39898/2
Kind Regards
Giacomo
> -Original Message-
> From: Bobby Bruce via gem5-dev
> Sent: 17 February 2021 08:12
> To: gem5 Developer List
> Cc: Bobby Bruce
> Subject:
In my experience the mentioned problem:
> AttributeError: 'TestCaseMetadata' object has no attribute 'time'
It's a simple reflection of a regression not being able to complete its
execution (note, this is different than failing), and it is not strictly
related to testlib.
If the regression is
Hi Gabe,
I believe you are referring to the following ticket:
https://gem5.atlassian.net/browse/GEM5-277
Ciro is currently on vacation and he will be back next week so he will be able
to update
you on his progresses. IIRC pybind folks are reviewing his contribution but I
cannot provide
you a
a
day to complete
Kind Regards
Giacomo
> -Original Message-
> From: Giacomo Travaglini via gem5-dev
> Sent: 27 January 2021 22:23
> To: gem5 Developer List
> Cc: Giacomo Travaglini
> Subject: [gem5-dev] Re: Some evidence build times have substantially
> increa
Hi Bobby,
While I agree there might be something wrong with it, It can be partly
explained with the sheer amount of patches which
is being reviewed and merged in these days. This is affecting compilation time
in the following ways:
a) Overloading Jenkins with the gem5-develop job -> this is
Hi all,
This has been fixed and it's going to be merged today.
This made me realize we might want to introduce a timeout for our regressions.
A global, Jenkins level one is easy to add and doesn't require any code
modifications.
However a per-test timeout is probably the best approach. In
Hi devs,
It seems like the following Nightly run #191 is stuck:
https://jenkins.gem5.org/job/Nightly/191/
I am running those tests locally to understand if it is a tool problem or
broken long regressions are currently broken
Will keep you posted
Kind Regards
Giacomo
IMPORTANT NOTICE: The
We could add it to scons as an extra flag which is defaulting to False, and
properly set in our regression scripts
(I am also in favour of adding IWYU)
Kind Regards
Giacomo
> -Original Message-
> From: Nikos Nikoleris via gem5-dev
> Sent: 13 January 2021 15:57
> To: gem5-dev@gem5.org
Hi Gabe,
Let me first say that I like what you are trying to do.
Are you thinking about changing the querying interface only, or are you
thinking about restructuring the back-end as well? Like where ISA specific
parameters are actually stored? For example in Arm we have system level
Hi Samuel,
Thanks for reporting this.
There is an init file, it is in the root directory: /init.gem5.
You can manually select that by using the --kernel-init option in
fs_bigLITTLE.py
I will amend the distributed disk image providing a symlink to /init.gem5 in
/sbin/init for consistency
With
Hi,
In general terms I agree; We are relying on the
https://github.com/gem5/gem5/blob/develop/configs/example/arm/baremetal.py
platform for its capability of loading several binaries as extras without
needing to know what those binaries actually are (ish). We use it in different
scenarios
Let me add to the plate a simple proposal though still a bit verbose and
probably not that different from a manual cast
Defining a template method in SimObject:
template
Obj params()
{
return static_cast(_params);
Or more secure:
param = dynamic_cast(_params);
assert(param);
t me know if you have a better idea.
Cheers,
Jason
On Tue, Oct 13, 2020 at 8:41 AM Giacomo Travaglini via gem5-dev
mailto:gem5-dev@gem5.org>> wrote:
Forgot to mention: I am choosing the latter
Giacomo
From: Giacomo Travaglini
Sent: 13 October 2020 16:40
To: gem5 Developer List mailto:ge
Forgot to mention: I am choosing the latter
Giacomo
From: Giacomo Travaglini
Sent: 13 October 2020 16:40
To: gem5 Developer List ; Poremba, Matthew
Cc: Jieming Yin
Subject: RE: [gem5-dev] Re: Build failed in Jenkins: Nightly #91
Hi all,
I had the same issue. The problem in my case was in
Hi all,
I had the same issue. The problem in my case was in scons, which was selecting
python2 when building gem5 disregarding my python3 virtualenv
$less `which scons`
#! /usr/bin/python
And /usr/bin/python was linked to python2.7.
So the available solutions are:
* Installing a newer
This looks great Gabe! Just so you know, there is already something (old) on
review:
https://gem5-review.googlesource.com/c/public/gem5/+/10805/3
Giacomo
From: Gabe Black via gem5-dev
Sent: 08 October 2020 13:59
To: gem5 Developer List
Cc: Gabe Black
Subject: [gem5-dev] Register bank
Hey Jason,
I have just posted the patchset:
https://gem5-review.googlesource.com/c/public/gem5/+/34975/1
Supporting a multi-level TLB design was actually the reason why I started
implementing this.
I am not at that point yet, but I believe we are getting closer now, having a
MMU hiding the
Hi Gabe, I am actually about to post the same patchset (which is: removing the
TLB from the CPU interface and make it interface with an MMU instead)
Giacomo
From: Gabe Black via gem5-dev
Sent: 20 September 2020 04:44
To: gem5 Developer List
Cc: Gabe Black
Subject: [gem5-dev] Re: MMU object
Hi devs,
We've posted a patchset which allows us to dump the execution time of every
testcase during kokoro runs.
https://gem5-review.googlesource.com/c/public/gem5/+/32653/1
This will make it possible for us to track performance regressions before a
commit is merged, hence preventing
Thanks Bobby and Mike!
These are amazing news
Giacomo
From: Bobby Bruce via gem5-dev
Sent: 27 July 2020 19:55
To: gem5 Developer List
Cc: Bobby Bruce
Subject: [gem5-dev] The Nightly Build system is now Live (Compiler tests too!)
Dear all,
After some tinkering, we now have a nightly build
Thanks Gabe,
Please let me know if you can reproduce the problem with the mentioned patch.
If that’s the case, we should open a JIRA ticket so that I can have a look at
that
Giacomo
From: Gabe Black
Sent: 25 June 2020 05:28
To: Giacomo Travaglini
Cc: gem5 Developer List ; Weiping Liao
;
Hi Gabe,
We are encountering the same problem on top of develop but it’s still worth
asking:
1. Do you have https://gem5-review.googlesource.com/c/public/gem5/+/25743 ?
2. Are you encountering this in a simulation which is using a CPU switch or
checkpoint save/restore
Kind Regards
I agree with Daniel and Ciro; it's difficult/annoying to navigate through old
unanswered emails and I presume nobody does that at the moment.
Most of the time if your email doesn't get a quick response as soon as it gets
posted, you can forget about getting some help as time passes; there is a
Hi Jason,
As you can see from the ticket below:
https://gem5.atlassian.net/browse/GEM5-611
It won’t be possible otherwise to run gem5-ARM in KVM mode with the in source
bootloader.
It is not a compiler fix. Considering the are several people using KVM, I
consider this critical and would
Thanks Jason, I will ping other Arm people
Giacomo
From: Jason Lowe-Power
Sent: 28 May 2020 16:14
To: Giacomo Travaglini
Cc: gem5 Developer List ; Bobby Bruce
Subject: Re: New ARM patches on staging branch
Hi Giacomo,
Thanks for letting us know. I've gone ahead and hit maintainer +1 on them
Hi Bobby,
It seems like we are just using kokoro now as CI platform. Is this intended?
(What happened with GCB?)
Kind Regards
Giacomo
IMPORTANT NOTICE: The contents of this email and any attachments are
confidential and may also be privileged. If you are not the intended recipient,
please
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