2021.04.19: Working Group Meeting

Platforms Horizontal Subcommittee (PHSC) Agenda: 19 April 2021

Meeting Info: Every alternate Monday (15:00 UTC, 08:00 PST, 23:00 CST, 20:30 IST)

• Details: https://sites.google.com/a/riscv.org/risc-v-staff/home/tech-groups-cal
• Past meetings: https://github.com/riscv/riscv-platform-specs/wiki
• Meetings every alternate Monday
  • 7AM PST until Mar 14 2021, 8AM PST after Mar 14 2021
  • If the meeting Monday is a scheduled holiday in the US, the meeting will be held on Wed 8AM PST of the same week

Passthrough:

• Anti-trust statement
• Open and collaborative
• Org chart:
  • TSC -> Software HC -> Platform HSC (you are here)
  • TGs and SIGs as needed

Topics

• Another meeting today April 19th 2021 7:30PM-8PM PST by Alistair Francis to walk thru the Embedded-2022 platform proposal.

• Linux/Embedded-2022 Platform specification presentation by Kumar

  • Presentation located here https://docs.google.com/presentation/d/1i3_KsyljrR3CVUFLOvu426sdNKfpo7rw6hjzRNBw5qE/edit#slide=id.gce1d523d02_0_0

• Platform schedule and owners tracker Excel located here https://docs.google.com/spreadsheets/d/1J4kqyW9tPxqY1CGcJUQsmtHt3FYlqGi_erWQGrmoQtU/edit#gid=0

• Google Drive Shared platform folder with all presentations, schedules and material located here https://drive.google.com/drive/folders/1ooqdnIsYx7XKor5O1XTtM6D1CHp4hc0p?usp=sharing

• Platform Specification Document located here https://github.com/riscv/riscv-platform-specs/blob/main/riscv-platform-spec.adoc

• CSI for Embedded-2022 platform Presentations by Alibaba Team

• Original version (Chinese): https://yoc.docs.t-head.cn/yocbook/Chapter3-AliOS/CSI%E8%AE%BE%E5%A4%87%E9%A9%B1%E5%8A%A8%E6%8E%A5%E5%8F%A3/CSI2/

• Google-Translate Version (English): https://translate.google.com/translate?sl=auto&tl=en&u=https://yoc.docs.t-head.cn/yocbook/Chapter3-AliOS/CSI%E8%AE%BE%E5%A4%87%E9%A9%B1%E5%8A%A8%E6%8E%A5%E5%8F%A3/CSI2/

• Google-Translate Frameless Version (English): https://xk7xco72lihiq2jyxt22pahll4-ac4c6men2g7xr2a-yoc-docs-t-head-cn.translate.goog/yocbook/Chapter1-YoC%E6%A6%82%E8%BF%B0/

Comments

• Schedule a separate meeting with Mark to go over the platform spec schedule
• How will custom extensions be handled. Custom extensions are beyond the scope of the platform spec. Platform defines the minimum set of functionality to claim compliance with the spec
• UART - modify Dword to 32-bit access as Dword is 64-bit. Also mention that the register contents are byte-wide.
• Linux-2022 base will mandate UEFI+EBBR compliance. U-boot with EBBR is an implementation that is UEFI+EBBR compliant.
• The profiles policy uses "Required, Unsupported, Optional.....". Need to align platform keywords to be the same as profiles. If platform needs Deprecated, that can be accomplished. Goal would be to align as close as possible to the profiles policy.

Meeting recording

• Meeting recording of 8AM PST session here https://drive.google.com/file/d/153ZtVK77GNZjdXboVESazMpogA8IPcQO/view?usp=sharing
• Meeting recording of 7:30PM PST session here https://drive.google.com/file/d/1WTNXYZu3X2P0Nvmq8votIUAV16OT8kg-/view?usp=sharing