System-dt August 2020

system-dt@lists.openampproject.org

4 participants
5 discussions

Notes (brief) from System DT call: OpenAMP bindings

by Tomas Evensen

Here are some brief notes from the meeting. If nothing else as a showcase on how much we miss Nathalie when she is on vacation 😉 Krzysztof Kepa – GE Mathieu Poirier – Linaro Etsam Anjum – Mentor Anrnoud Pouliquen – ST Loic Pallardy - ST Suman Anna - TI Dan Milea – Wind River Mark Dapoz – Wind River Tomas Evensen – Xilinx Stefano Stabellini – Xilinx Bruce Ashfield – Xilinx Ed Mooring – Xilinx Ben Levinsky - Xilinx Stefano went through slides. Overall idea: 1. Specify remoteproc channels with minimal information in System-DT in a way that is as common as possible for all vendors. In particular, we are avoiding to have to specify the same memory regions in more than one place. A resource group is specially marked to contain most information. 2. Use Lopper to create the vendor specific remoteproc specification Generating reserved-memory, etc. information that has duplicate information. For the time being, no plans to unify the vendor specific information that goes into the traditional device tree for Linux 3. Later (or in parallel), but without making it a gating item, start discussions on what we can do to unify the vendor specific information in the traditional DT Discussion about how TI and ST might generate their specific information from this specification. Stefano to send out examples and slides. Ben: Xilinx backend to Lopper is upstreamed and available as an example. Might change as upstreaming continues. Question: * How do we configure VirtIO? From: nathalie(a)xilinx.com When: 8:00 AM - 9:00 AM August 31, 2020 Subject: [System-dt] System DT call: OpenAMP bindings Location: webex CAUTION: This message has originated from an External Source. Please use proper judgment and caution when opening attachments, clicking links, or responding to this email. Hi all, The OpenAMP-remoteproc working group is looking forward to discuss OpenAMP bindings with the System DT working group & all others interested in System DT. Best regards, Nathalie C. Chan King Choy Program Manager focused on Open Source & Community Meeting number (access code): 145 853 2028 Meeting password: NgTwf4r8R$3 Monday, August 31, 2020 8:00 am | (UTC-07:00) Pacific Time (US & Canada) | 1 hr Join meeting<https://xilinx.webex.com/xilinx/j.php?MTID=mcd4ad9bca009dfef38671c26d5a1d301> Canada toll free 1-844-426-4405 France toll free 0800-912-485 India toll free 000-800-040-1016 Sweden toll free 020-033-6721 UK toll free 08000315372 United States Toll Free 1-844-621-3956 Global call-in numbers<https://xilinx.webex.com/xilinx/globalcallin.php?MTID=m370fae0984a8792a3592…> | Toll-free calling restrictions<https://www.webex.com/pdf/tollfree_restrictions.pdf> This email and any attachments are intended for the sole use of the named recipient(s) and contain(s) confidential information that may be proprietary, privileged or copyrighted under applicable law. If you are not the intended recipient, do not read, copy, or forward this email message or any attachments. Delete this email message and any attachments immediately.

4 years, 1 month

Re: [System-dt] Notes (brief) from System DT call: OpenAMP bindings

by Stefano Stabellini

On Mon, 31 Aug 2020, Bjorn Andersson via System-dt wrote: > On Mon 31 Aug 16:04 UTC 2020, Tomas Evensen via System-dt wrote: > > > Here are some brief notes from the meeting. > > > > If nothing else as a showcase on how much we miss Nathalie when she is on vacation ???? > > > > Krzysztof Kepa – GE > > Mathieu Poirier – Linaro > > Etsam Anjum – Mentor > > Anrnoud Pouliquen – ST > > Loic Pallardy - ST > > Suman Anna - TI > > Dan Milea – Wind River > > Mark Dapoz – Wind River > > Tomas Evensen – Xilinx > > Stefano Stabellini – Xilinx > > Bruce Ashfield – Xilinx > > Ed Mooring – Xilinx > > Ben Levinsky - Xilinx > > > > Stefano went through slides. > > Overall idea: > > > > 1. Specify remoteproc channels with minimal information in System-DT in a way that is as common as possible for all vendors. > > In particular, we are avoiding to have to specify the same memory regions in more than one place. A resource group is specially marked to contain most information. > > 2. Use Lopper to create the vendor specific remoteproc specification > > Generating reserved-memory, etc. information that has duplicate information. > > For the time being, no plans to unify the vendor specific information that goes into the traditional device tree for Linux > > 3. Later (or in parallel), but without making it a gating item, start discussions on what we can do to unify the vendor specific information in the traditional DT > > Can anyone point me to some examples of vendor specific information > referred to here? Some of the other attendees might have better examples than this. The ones I was mentioning this morning are the "mboxes" and "mbox-names" properties you can see in the "output.txt" example. Also the memory regions listed under the "memory-region" property and under "reserved-memory".

4 years, 1 month

Re: [System-dt] Notes (brief) from System DT call: OpenAMP bindings

by Stefano Stabellini

On Mon, 31 Aug 2020, Tomas Evensen via System-dt wrote: > Stefano to send out examples and slides I am attaching the slides and examples, where: - input.txt is the system device tree snippet, input to lopper - output.txt is the traditional device tree snipper, output from lopper

4 years, 1 month

Re: [System-dt] Notes (brief) from System DT call: OpenAMP bindings

by Bjorn Andersson

On Mon 31 Aug 16:04 UTC 2020, Tomas Evensen via System-dt wrote: > Here are some brief notes from the meeting. > > If nothing else as a showcase on how much we miss Nathalie when she is on vacation ???? > > Krzysztof Kepa – GE > Mathieu Poirier – Linaro > Etsam Anjum – Mentor > Anrnoud Pouliquen – ST > Loic Pallardy - ST > Suman Anna - TI > Dan Milea – Wind River > Mark Dapoz – Wind River > Tomas Evensen – Xilinx > Stefano Stabellini – Xilinx > Bruce Ashfield – Xilinx > Ed Mooring – Xilinx > Ben Levinsky - Xilinx > > Stefano went through slides. > Overall idea: > > 1. Specify remoteproc channels with minimal information in System-DT in a way that is as common as possible for all vendors. > In particular, we are avoiding to have to specify the same memory regions in more than one place. A resource group is specially marked to contain most information. > 2. Use Lopper to create the vendor specific remoteproc specification > Generating reserved-memory, etc. information that has duplicate information. > For the time being, no plans to unify the vendor specific information that goes into the traditional device tree for Linux > 3. Later (or in parallel), but without making it a gating item, start discussions on what we can do to unify the vendor specific information in the traditional DT Can anyone point me to some examples of vendor specific information referred to here? Regards, Bjorn > > Discussion about how TI and ST might generate their specific information from this specification. > > Stefano to send out examples and slides. > Ben: Xilinx backend to Lopper is upstreamed and available as an example. Might change as upstreaming continues. > > Question: > * How do we configure VirtIO? > > > > From: nathalie(a)xilinx.com > When: 8:00 AM - 9:00 AM August 31, 2020 > Subject: [System-dt] System DT call: OpenAMP bindings > Location: webex > > > CAUTION: This message has originated from an External Source. Please use proper judgment and caution when opening attachments, clicking links, or responding to this email. > > Hi all, > > The OpenAMP-remoteproc working group is looking forward to discuss OpenAMP bindings with the System DT working group & all others interested in System DT. > > Best regards, > > Nathalie C. Chan King Choy > Program Manager focused on Open Source & Community > > Meeting number (access code): 145 853 2028 > > Meeting password: NgTwf4r8R$3 > > > > Monday, August 31, 2020 > 8:00 am | (UTC-07:00) Pacific Time (US & Canada) | 1 hr > > > > Join meeting<https://xilinx.webex.com/xilinx/j.php?MTID=mcd4ad9bca009dfef38671c26d5a1d301> > > > > Canada toll free 1-844-426-4405 > France toll free 0800-912-485 > India toll free 000-800-040-1016 > Sweden toll free 020-033-6721 > UK toll free 08000315372 > United States Toll Free 1-844-621-3956 > > Global call-in numbers<https://xilinx.webex.com/xilinx/globalcallin.php?MTID=m370fae0984a8792a3592…> | Toll-free calling restrictions<https://www.webex.com/pdf/tollfree_restrictions.pdf> > This email and any attachments are intended for the sole use of the named recipient(s) and contain(s) confidential information that may be proprietary, privileged or copyrighted under applicable law. If you are not the intended recipient, do not read, copy, or forward this email message or any attachments. Delete this email message and any attachments immediately. > -- > System-dt mailing list > System-dt(a)lists.openampproject.org > https://lists.openampproject.org/mailman/listinfo/system-dt

4 years, 1 month

System DT call: OpenAMP bindings

by Nathalie Chan King Choy

Hi all, The OpenAMP-remoteproc working group is looking forward to discuss OpenAMP bindings with the System DT working group & all others interested in System DT. Best regards, Nathalie C. Chan King Choy Program Manager focused on Open Source & Community Meeting number (access code): 145 853 2028 Meeting password: NgTwf4r8R$3 Monday, August 31, 2020 8:00 am | (UTC-07:00) Pacific Time (US & Canada) | 1 hr Join meeting<https://xilinx.webex.com/xilinx/j.php?MTID=mcd4ad9bca009dfef38671c26d5a1d301> Canada toll free 1-844-426-4405 France toll free 0800-912-485 India toll free 000-800-040-1016 Sweden toll free 020-033-6721 UK toll free 08000315372 United States Toll Free 1-844-621-3956 Global call-in numbers<https://xilinx.webex.com/xilinx/globalcallin.php?MTID=m370fae0984a8792a3592…> | Toll-free calling restrictions<https://www.webex.com/pdf/tollfree_restrictions.pdf>

4 years, 1 month

2024

2023

2022

2021

2020

2019

System-dt August 2020