meetings/sync_up/sync_up_2023-11-28.mdwn

   1 # Tuesday 28th November 17:00 UTC
   2
   3 * Previous week's notes: [[meetings/sync_up/sync_up_2023-11-21]]
   4 * Next day's notes: [[meetings/sync_up/sync_up_2023-11-29]]
   5 * Next week's notes: [[meetings/sync_up/sync_up_2023-12-05]]
   6
   7 # Main Agenda
   8
   9 * reminder to everyone to fill in their links to bugreports *now*
  10   (right now) on the *previous* meeting if not already
  11   done so. you are responsible for maintaining your
  12   own "section" notes in each minutes.
  13   format: `[bug #NNNN](https://bugs.libre-soc.org/show_bug.cgi?id=NNNN)`
  14 * reminder of Dec 1st deadline for FOSDEM 2024 talk proposal
  15   submissions. abstract can be very short, edit later. do not leave it to
  16   last minute! new system in place.
  17   [bug #1070](https://bugs.libre-soc.org/show_bug.cgi?id=1070)
  18   <https://lists.libre-soc.org/pipermail/libre-soc-dev/2023-November/005798.html>
  19 * reminder of **only three months** (13 weeks) until march 1st deadline
  20   for completion of cavatools and cryptoprimitives. **all tasks scope must be
  21   cut right back, do not spend hours "attempting to struggle" out of a
  22   futile "i must achieve it alone" ethos: ASK FOR HELP IMMEDIATELY**
  23 * Clarification of the scope of new grants.
  24   See [[meetings/dmitry_2023-11-24]] notes for more context.
  25
  26 Meeting notes:
  27
  28 - Deprecated SimpleV prefix format from 2019: <https://libre-soc.org/simple_v_extension/sv_prefix_proposal/>
  29 - RISC-V example extension: <https://github.com/riscv-software-src/riscv-isa-sim/blob/master/customext/cflush.cc>
  30 - The first step is to make modifications to `sv_analysis.py` to classify the RISC-V instructions.
  31   <https://git.libre-soc.org/?p=openpower-isa.git;a=blob;f=src/openpower/sv/sv_analysis.py;hb=HEAD>
  32 - Standard RISC-V opcode format: <https://github.com/riscv/riscv-opcodes>
  33
  34 - [bug #980](https://bugs.libre-soc.org/show_bug.cgi?id=980)
  35   - A lot of work, need to focus on the basics
  36   - Issues with current Python pseudo-code compiler:
  37     - pseudocode is full of python-isms such as some variables are
  38     python ints and some are selectableint and some are strings etc.
  39     - plus, the parser currently has wrong operator precedence
  40     [bug #1082](https://bugs.libre-soc.org/show_bug.cgi?id=1082).
  41   - Suggested minimal goal for bug #980 is:
  42     - Use AST (operands, flow, etc. as we already do for generated
  43     Python func's) and a custom visitor function to convert to C code.
  44     - Generate C functions which can be compiled without errors.
  45     - Generated functions can be run from a main function to confirm results.
  46     - Jacob suggested using `maddedu` as a benchmark, since it has
  47     non-trivial pseudo-code.
  48     -
  49
  50
  51 # Dmitry
  52
  53 * Update [bug #1126](https://bugs.libre-soc.org/show_bug.cgi?id=1126)
  54 to include git commit descriptions.
  55 * Check whether RISC-V have their own way of describing the instructions
  56   (likely they do).
  57 * Familiarise yourself with
  58 [svanalysis.py](https://git.libre-soc.org/?p=openpower-isa.git;a=blob;f=src/openpower/sv/sv_analysis.py;h=21778ad02d78c4f7ef5b6df93e096f4abbe365ad;hb=HEAD),
  59 as we will need a similar tool for RISC-V.
  60 * Check what RISC-V support in binutils looks like. *Needed for confirming
  61 the details of the RISC-V binutils grant*.
  62
  63 # Sadoon
  64
  65 - Work together with Shriya (with Luke's asssitance) on Poly1305/ED25519.
  66 - Submitted talk proposals for FOSDEM 2024
  67
  68 # Jacob
  69
  70 - [bug #1169](https://bugs.libre-soc.org/show_bug.cgi?id=1169)
  71 Completed the necessary bits of mmap for ELF task.
  72
  73 # David
  74
  75 -
  76
  77 # Andrey
  78
  79 - Check with Dmitry on git commit descriptions (bug #1126).
  80 Once comment made, add to [[HDL_workflow]] documentation.
  81
  82 # Luke
  83
  84 * [bug #672](https://bugs.libre-soc.org/show_bug.cgi?id=672)
  85   long story, pospopcount needs bmatflip (aka vgbbd in VSX)
  86   but also needed sv.bc fixing
  87   [bug #1215](https://bugs.libre-soc.org/show_bug.cgi?id=1215)
  88   which is related/similar to the DDFFirst issue on scalar source/dest
  89   [bug #1183](https://bugs.libre-soc.org/show_bug.cgi?id=1183)
  90   which jacob also noted for sv.cmpi/ff needed on bigmul.
  91 * Guide Dmitry on svanalysis.py.
  92 * Guide Shriya in Poly1305 and ED25519 to assist Sadoon.
  93
  94 # Shriya
  95
  96 - Work together with Sadoon on Poly1305 and ED25519.
  97
  98 # Tobias
  99
 100 * created fosdem talk bug, [bug #1213](https://bugs.libre-soc.org/show_bug.cgi?id=1213)
 101
 102 [[!tag meeting2023]]
 103 [[!tag meeting_sync_up]]
 104