Linaro-open-discussions March 2025

linaro-open-discussions@op-lists.linaro.org

3 participants
4 discussions

Invitation: Linaro Open Discussions monthly meeting @ Tue 1 Apr 2025 10:00 - 11:00 (GMT+8) (linaro-open-discussions@op-lists.linaro.org)

by Joyce Qi

Linaro Open Discussions monthly meeting Tuesday 1 Apr 2025 ⋅ 10:00 – 11:00 China Standard Time - Shanghai Location https://linaro-org.zoom.us/j/95682500341 https://www.google.com/url?q=https%3A%2F%2Flinaro-org.zoom.us%2Fj%2F9568250… Joyce QI 邀请您参加预先安排的 Zoom 会议。加入 Zoom 会议 https://linaro-org.zoom.us/j/95682500341 会议号：956 8250 0341 手机一键拨号 +16699009128,,95682500341# 美国 (San Jose) +13462487799,,95682500341# 美国 (Houston) 根据您的位置拨号 +1 669 900 9128 美国 (San Jose) +1 346 248 7799 美国 (Houston) +1 253 215 8782 美国 (Tacoma) +1 646 558 8656 美国 (New York) +1 301 715 8592 美国 (Washington DC) +1 312 626 6799 美国 (Chicago) 888 788 0099 美国免费 877 853 5247 美国免费会议号：956 8250 0341 查找本地号码：https://linaro-org.zoom.us/u/ady2J9Zn7t Guests kangkang.shen(a)futurewei.com Kevin Zhao linaro-open-discussions(a)op-lists.linaro.org lixiaodong67(a)huawei.com View all guest info https://calendar.google.com/calendar/event?action=VIEW&eid=Mjg1MjNrNWtiMWxv… Reply for linaro-open-discussions(a)op-lists.linaro.org and view more details https://calendar.google.com/calendar/event?action=VIEW&eid=Mjg1MjNrNWtiMWxv… Your attendance is optional. ~~//~~ Invitation from Google Calendar: https://calendar.google.com/calendar/ You are receiving this email because you are an attendee on the event. Forwarding this invitation could allow any recipient to send a response to the organizer, be added to the guest list, invite others regardless of their own invitation status, or modify your RSVP. Learn more https://support.google.com/calendar/answer/37135#forwarding

5 days, 22 hours

About next week LOD meeting topic collection

by Joyce Qi

Hi Jonathan, all, Happy New Year to all! Do we have any topic to sync next week? Thanks:) Joyce > On 27 Nov 2024, at 08:00, linaro-open-discussions-request(a)op-lists.linaro.org wrote: > > Send Linaro-open-discussions mailing list submissions to > linaro-open-discussions(a)op-lists.linaro.org > > To subscribe or unsubscribe via email, send a message with subject or > body 'help' to > linaro-open-discussions-request(a)op-lists.linaro.org > > You can reach the person managing the list at > linaro-open-discussions-owner(a)op-lists.linaro.org > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of Linaro-open-discussions digest..." > > Today's Topics: > > 1. Re: Flush by PA range Designs. (was Re: Linaro-open-discussions Digest, Vol 38, Issue 14) > (Joyce Qi) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Tue, 26 Nov 2024 18:36:22 +0800 > From: Joyce Qi <joyce.qi(a)linaro.org> > Subject: [Linaro-open-discussions] Re: Flush by PA range Designs. > (was Re: Linaro-open-discussions Digest, Vol 38, Issue 14) > To: James Morse <james.morse(a)arm.com> > Cc: Jonathan Cameron <Jonathan.Cameron(a)Huawei.com>, James Morse via > Linaro-open-discussions <linaro-open-discussions(a)op-lists.linaro.org>, > linuxarm(a)huawei.com, zengheng4(a)huawei.com, wangyushan12(a)huawei.com, > Dave Martin <Dave.Martin(a)arm.com> > Message-ID: <5BF890F5-CE52-4682-AFE6-9FBDE56F2247(a)linaro.org> > Content-Type: text/plain; charset=utf-8 > > Hi all， > > Will cancel today’s meeting since no special topic today, welcome to contact with when needed. > > Thanks > Joyce > >> On 25 Nov 2024, at 21:01, Joyce Qi <joyce.qi(a)linaro.org> wrote: >> >> Hi Jonathan， >> >> Would you like to continue the MPAM， Flush by PA range Designs or any other topics during tomorrow’s LOD meeting？ >> >> Thanks >> Joyce >> >> >>> On 24 Oct 2024, at 00:14, James Morse <james.morse(a)arm.com> wrote: >>> >>> Hi guys, >>> >>> (CC: +Dave Martin) >>> >>> On 10/21/24 15:01, Joyce Qi wrote: >>>>> On 21 Oct 2024, at 20:50, James Morse <james.morse(a)arm.com> wrote: >>>>> On 21/10/2024 11:00, Joyce Qi via Linaro-open-discussions wrote: >>>>>> Thanks a lot for the detailed description and document sharing. >>>>>> I have uploaded the MPAM materials to the LOD Confluence. >>>>>> >>>>>> https://linaro.atlassian.net/wiki/spaces/LOD/overview >>> >>>>>> Are you available to join tomorrow’s LoD meeting for the MPAM topics ? >>> >>> The code already published for something like the intPARTID proposal is here: >>> https://git.gitlab.arm.com/linux-arm/linux-dm/-/commits/mpam/partid-pmg-rem… >>> >>> The aim was to keep it within the MPAM driver, initially based on some static configuration to prove >>> its useful before making it more dynamic, probably a mount option. >>> >>> >>> Thanks, >>> >>> James >> > > > ------------------------------ > > Subject: Digest Footer > > Linaro-open-discussions mailing list -- linaro-open-discussions(a)op-lists.linaro.org > To unsubscribe send an email to linaro-open-discussions-leave(a)op-lists.linaro.org > > > ------------------------------ > > End of Linaro-open-discussions Digest, Vol 50, Issue 1 > ******************************************************

1 week, 4 days

Re: Linaro-open-discussions Digest, Vol 53, Issue 3

by Joyce Qi

Hi James，Jonathan， Do you have some update regarding Johantan’s email below and do we need to sync today？ Thanks Joyce > On 8 Mar 2025, at 08:00, linaro-open-discussions-request(a)op-lists.linaro.org wrote: > > Send Linaro-open-discussions mailing list submissions to > linaro-open-discussions(a)op-lists.linaro.org > > To subscribe or unsubscribe via email, send a message with subject or > body 'help' to > linaro-open-discussions-request(a)op-lists.linaro.org > > You can reach the person managing the list at > linaro-open-discussions-owner(a)op-lists.linaro.org > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of Linaro-open-discussions digest..." > > Today's Topics: > > 1. Re: About next week LOD meeting topic collection > (Jonathan Cameron) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Fri, 21 Feb 2025 10:07:03 +0000 > From: Jonathan Cameron <Jonathan.Cameron(a)huawei.com> > Subject: [Linaro-open-discussions] Re: About next week LOD meeting > topic collection > To: Joyce Qi <joyce.qi(a)linaro.org> > Cc: linaro-open-discussions(a)op-lists.linaro.org, Lorenzo Pieralisi > <lorenzo.pieralisi(a)linaro.org>, James Morse <james.morse(a)arm.com>, Rob > Herring <robh(a)kernel.org>, Mark Rutland <mark.rutland(a)arm.com>, > Alireza Sanaee <alireza.sanaee(a)huawei.com> > Message-ID: <20250221100703.000030b8(a)huawei.com> > Content-Type: text/plain; charset="utf-8" > > > Hi Joyce, > > I'll be in Shenzhen next week but should be able to dial in subject to > overcoming a slightly different network. > > If we can poke the following disconnect that would be very helpful > - if it happens on list rather than needing to be discussed on the call > that's absolutely fine. > > It's a difference of opinion between Mark Rutland and Rob Herring > (both ARM) about how to do device tree representation of multi thread > cores and resulting shared L1 caches. We mostly care about this because > we'd like to maintain same level of support in QEMU for ACPI (which has > always handled this case) and DT. > > This was try number 1 based on advice from Rob was to use multiple reg > entries in a single cpu node (how the DT spec currently specifies it > based on ancient power PC roots) > > https://lore.kernel.org/linux-arm-kernel/20250110161057.445-1-alireza.sanae… > Mark suggested that we just do out of CPU node description as is done for every > other level of cache because of the complexity of phandles pointing to the > node. > > Proposal of out of CPU node description. Rob not happy with this one. > https://lore.kernel.org/all/20250129164855.676-1-alireza.sanaee@huawei.com/ > https://lore.kernel.org/all/20250203120527.3534-1-alireza.sanaee@huawei.com/ > > Whilst I'm fairly sure Mark's concerns about references to the CPU node can > be resolved with a few minor tweaks (a few properties may become arrays that > are index rather than single element) we'd really like to have the two > experts engaged in the same thread as so far it's been a case of alternate > responses. > > The other topic that is in my pile is the cache flushing by PA range work. > I'm going to be working with our HQ team to ensure the design we put out > for that is general enough over the next 2 weeks so we should have something > to share after that. The remaining questions prior to posting an RFC are > all low level detail things that I don't think would benefit from a discussion > until we've shown the code. > > Final potential topic is MPAM. Particularly if there is anything specific > we can do to help with upstreaming. > > Jonathan > > > Joyce Qi <joyce.qi(a)linaro.org> wrote: > >> Hi Jonathan, all, >> >> Happy New Year to all! >> >> Do we have any topic to sync next week? >> >> Thanks:) >> Joyce >> >> >> >> >>> On 27 Nov 2024, at 08:00, linaro-open-discussions-request(a)op-lists.linaro.org wrote: >>> >>> Send Linaro-open-discussions mailing list submissions to >>> linaro-open-discussions(a)op-lists.linaro.org >>> >>> To subscribe or unsubscribe via email, send a message with subject or >>> body 'help' to >>> linaro-open-discussions-request(a)op-lists.linaro.org >>> >>> You can reach the person managing the list at >>> linaro-open-discussions-owner(a)op-lists.linaro.org >>> >>> When replying, please edit your Subject line so it is more specific >>> than "Re: Contents of Linaro-open-discussions digest..." >>> >>> Today's Topics: >>> >>> 1. Re: Flush by PA range Designs. (was Re: Linaro-open-discussions Digest, Vol 38, Issue 14) >>> (Joyce Qi) >>> >>> >>> ---------------------------------------------------------------------- >>> >>> Message: 1 >>> Date: Tue, 26 Nov 2024 18:36:22 +0800 >>> From: Joyce Qi <joyce.qi(a)linaro.org> >>> Subject: [Linaro-open-discussions] Re: Flush by PA range Designs. >>> (was Re: Linaro-open-discussions Digest, Vol 38, Issue 14) >>> To: James Morse <james.morse(a)arm.com> >>> Cc: Jonathan Cameron <Jonathan.Cameron(a)Huawei.com>, James Morse via >>> Linaro-open-discussions <linaro-open-discussions(a)op-lists.linaro.org>, >>> linuxarm(a)huawei.com, zengheng4(a)huawei.com, wangyushan12(a)huawei.com, >>> Dave Martin <Dave.Martin(a)arm.com> >>> Message-ID: <5BF890F5-CE52-4682-AFE6-9FBDE56F2247(a)linaro.org> >>> Content-Type: text/plain; charset=utf-8 >>> >>> Hi all， >>> >>> Will cancel today’s meeting since no special topic today, welcome to contact with when needed. >>> >>> Thanks >>> Joyce >>> >>>> On 25 Nov 2024, at 21:01, Joyce Qi <joyce.qi(a)linaro.org> wrote: >>>> >>>> Hi Jonathan， >>>> >>>> Would you like to continue the MPAM， Flush by PA range Designs or any other topics during tomorrow’s LOD meeting？ >>>> >>>> Thanks >>>> Joyce >>>> >>>> >>>>> On 24 Oct 2024, at 00:14, James Morse <james.morse(a)arm.com> wrote: >>>>> >>>>> Hi guys, >>>>> >>>>> (CC: +Dave Martin) >>>>> >>>>> On 10/21/24 15:01, Joyce Qi wrote: >>>>>>> On 21 Oct 2024, at 20:50, James Morse <james.morse(a)arm.com> wrote: >>>>>>> On 21/10/2024 11:00, Joyce Qi via Linaro-open-discussions wrote: >>>>>>>> Thanks a lot for the detailed description and document sharing. >>>>>>>> I have uploaded the MPAM materials to the LOD Confluence. >>>>>>>> >>>>>>>> https://linaro.atlassian.net/wiki/spaces/LOD/overview >>>>> >>>>>>>> Are you available to join tomorrow’s LoD meeting for the MPAM topics ? >>>>> >>>>> The code already published for something like the intPARTID proposal is here: >>>>> https://git.gitlab.arm.com/linux-arm/linux-dm/-/commits/mpam/partid-pmg-rem… >>>>> >>>>> The aim was to keep it within the MPAM driver, initially based on some static configuration to prove >>>>> its useful before making it more dynamic, probably a mount option. >>>>> >>>>> >>>>> Thanks, >>>>> >>>>> James >>>> >>> >>> >>> ------------------------------ >>> >>> Subject: Digest Footer >>> >>> Linaro-open-discussions mailing list -- linaro-open-discussions(a)op-lists.linaro.org >>> To unsubscribe send an email to linaro-open-discussions-leave(a)op-lists.linaro.org >>> >>> >>> ------------------------------ >>> >>> End of Linaro-open-discussions Digest, Vol 50, Issue 1 >>> ****************************************************** >> > > > ------------------------------ > > Subject: Digest Footer > > Linaro-open-discussions mailing list -- linaro-open-discussions(a)op-lists.linaro.org > To unsubscribe send an email to linaro-open-discussions-leave(a)op-lists.linaro.org > > > ------------------------------ > > End of Linaro-open-discussions Digest, Vol 53, Issue 3 > ******************************************************

1 week, 4 days

Linaro OP-TEE Contribution, LOC, monthly meeting March 25

by Jens Wiklander

Hi, Tomorrow, Tuesday, it's time for another LOC monthly meeting. For time and connection details see the calendar at https://www.trustedfirmware.org/meetings/ I've posted another version of the Secure Data Path patches [1] if you have any thoughts on that. [1] https://lore.kernel.org/lkml/20250305130634.1850178-1-jens.wiklander@linaro… Are there any other topics? Cheers, Jesn

1 week, 5 days

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Linaro-open-discussions March 2025