Luke Kenneth Casson Leighton

Lead dev and Project Coordinator for Libre-SOC.

• Bugtracker assignments
• 180nm task list
• https://readthedocs.org/profiles/lkcl/ readthedocs link
• http://twitter.com/lkcl
• https://libre-soc.org/task_db/

Priority tasks to keep an eye on

• https://bugs.libre-soc.org/show_bug.cgi?id=197 6600 proof EUR 5000

Status tracking

move things along from one stage to the next

Currently working on

• Project Management
• https://bugs.libre-soc.org/show_bug.cgi?id=594 PartitionedSignal RFC
  • EUR 1500
• https://bugs.libre-soc.org/show_bug.cgi?id=665 nmigen c compiler
• https://bugs.libre-soc.org/show_bug.cgi?id=214 ISANS letter
• https://bugs.libre-soc.org/show_bug.cgi?id=240 ISA switch
• https://bugs.libre-soc.org/show_bug.cgi?id=238 Compressed writeup
• https://bugs.libre-soc.org/show_bug.cgi?id=858 SVP64 Primer
• https://bugs.libre-soc.org/show_bug.cgi?id=867 svindex
• https://bugs.libre-soc.org/show_bug.cgi?id=834 binutils draft instructions
• https://bugs.libre-soc.org/show_bug.cgi?id=533 cr int draft instructions
• https://bugs.libre-soc.org/show_bug.cgi?id=251 3D MESA
• https://bugs.libre-soc.org/show_bug.cgi?id=844 binutils magic
• https://bugs.libre-soc.org/show_bug.cgi?id=839 SVP64 whitepaper
• https://bugs.libre-soc.org/show_bug.cgi?id=243 Documentation SVP64 Proposals
• https://bugs.libre-soc.org/show_bug.cgi?id=834 management, binutils
• https://bugs.libre-soc.org/show_bug.cgi?id=463 donated, Simulator
• https://bugs.libre-soc.org/show_bug.cgi?id=237 SV Encoding
• https://bugs.libre-soc.org/show_bug.cgi?id=790 nextpnr-xilinx
  • EUR 150
• https://bugs.libre-soc.org/show_bug.cgi?id=802 ls2 documentation
  • EUR 150
• https://bugs.libre-soc.org/show_bug.cgi?id=664 SVP64 Branches
  • EUR 1000
• https://bugs.libre-soc.org/show_bug.cgi?id=176 Partitioned Logic
• https://bugs.libre-soc.org/show_bug.cgi?id=167 Partitioned Mux
  • EUR 250
• https://bugs.libre-soc.org/show_bug.cgi?id=458 Partitioned Type 2 DSL
  • EUR 1000 of 1250 shared
• https://bugs.libre-soc.org/show_bug.cgi?id=549 Partitioned Logic docs
• https://bugs.libre-soc.org/show_bug.cgi?id=684 XLEN-16 fails
• https://bugs.libre-soc.org/show_bug.cgi?id=701 DCT FFT documentation
• https://bugs.libre-soc.org/show_bug.cgi?id=658 SVSTATE extended to 64 bit
• https://bugs.libre-soc.org/show_bug.cgi?id=241 OpenPOWER simulator
• https://bugs.libre-soc.org/show_bug.cgi?id=647 ISACaller basic FP
• https://bugs.libre-soc.org/show_bug.cgi?id=52 SVP64 simulation
• https://bugs.libre-soc.org/show_bug.cgi?id=609 SVSTATE DMI
• https://bugs.libre-soc.org/show_bug.cgi?id=588 SVP64 PowerDecoder2
• https://bugs.libre-soc.org/show_bug.cgi?id=575
• https://bugs.libre-soc.org/show_bug.cgi?id=53 3D Custom instructions
• https://bugs.libre-soc.org/show_bug.cgi?id=565 Partitioning Proof
• https://bugs.libre-soc.org/show_bug.cgi?id=546 Data merging FSM
  • EUR
• https://bugs.libre-soc.org/show_bug.cgi?id=213 SV Spec
• https://bugs.libre-soc.org/show_bug.cgi?id=214 ISAMux writeup
• https://bugs.libre-soc.org/show_bug.cgi?id=450 Create HDL MMU
• http://bugs.libre-riscv.org/show_bug.cgi?id=81 6600 scoreboard
• http://bugs.libre-riscv.org/show_bug.cgi?id=206 branch prediction research
• https://bugs.libre-soc.org/show_bug.cgi?id=216 LDST buffer
• https://bugs.libre-soc.org/show_bug.cgi?id=448 MUL tests
  • shared with cole
• https://bugs.libre-soc.org/show_bug.cgi?id=419 MUL proof
  • EUR 50, shared with samuel 10%

• https://bugs.libre-soc.org/show_bug.cgi?id=420 DIV proof

• https://bugs.libre-soc.org/show_bug.cgi?id=336 Compunit RA=0 test

• https://bugs.libre-soc.org/show_bug.cgi?id=418 SPR proof
  • EUR 50, shared with samuel (EUR 350)
• https://bugs.libre-soc.org/show_bug.cgi?id=350 LDST RA=0 test
• https://bugs.libre-soc.org/show_bug.cgi?id=361 RA=0 tests
• https://bugs.libre-soc.org/show_bug.cgi?id=415 misc opcodes
• https://bugs.libre-soc.org/show_bug.cgi?id=310 FU multiple tasks
• https://bugs.libre-soc.org/show_bug.cgi?id=427 LD/ST cache-inhibit
  • EUR 200
• https://bugs.libre-soc.org/show_bug.cgi?id=64 data handling API
• https://bugs.libre-soc.org/show_bug.cgi?id=211 Formal proof of decoder
  • donated
  • parent #198
  • EUR 200
• https://bugs.libre-soc.org/show_bug.cgi?id=342 parent #197
• MultiCompUnit (and Function Units) proof
• https://bugs.libre-soc.org/show_bug.cgi?id=340 POWER9 ROTATE proof
• donated
• parent #195
• https://bugs.libre-soc.org/show_bug.cgi?id=639 SVP64 test documentation

Completed but not yet submitted:

TO SORT

28feb2022

• https://bugs.libre-soc.org/show_bug.cgi?id=485 icache
  • EUR 1500 (shared with tplaten)
• https://bugs.libre-soc.org/show_bug.cgi?id=469 dcache
  • EUR 1500 (shared with tplaten)
• https://bugs.libre-soc.org/show_bug.cgi?id=491 mmu
  • EUR 1000 (shared with tplaten)
• https://bugs.libre-soc.org/show_bug.cgi?id=419 MUL Formal (donated)
  • EUR 500 (shared with programmerjake)
• https://bugs.libre-soc.org/show_bug.cgi?id=340 SHIFTROT proof
  • EUR 400 (shared with programmerjake)

before that

• https://bugs.libre-soc.org/show_bug.cgi?id=686 create Power ISA test API
  • EUR 1600
  • EUR 800 shared with klehman
  • EUR 800 shared with lkcl
• https://bugs.libre-soc.org/show_bug.cgi?id=703 SVP64 preliminary decode
  • EUR 800
• https://bugs.libre-soc.org/show_bug.cgi?id=482 mul bug
• https://bugs.libre-soc.org/show_bug.cgi?id=425 div errors
• https://bugs.libre-soc.org/show_bug.cgi?id=432 mul overflow incorrect
• https://bugs.libre-soc.org/show_bug.cgi?id=578 SVP64 generator
  • EUR 500
• https://bugs.libre-soc.org/show_bug.cgi?id=466 3D MESA planning
• https://bugs.libre-soc.org/show_bug.cgi?id=490 litex peripheral set
• https://bugs.libre-soc.org/show_bug.cgi?id=514 ls180 reset review
• https://bugs.libre-soc.org/show_bug.cgi?id=515 JTAG boot upload/init

• https://bugs.libre-soc.org/show_bug.cgi?id=511 JTAG IO Boundary test

• https://bugs.libre-soc.org/show_bug.cgi?id=330 Logic pipe

  • EUR 150
  • donated
• https://bugs.libre-soc.org/show_bug.cgi?id=314 CR pipe
  • EUR 200
  • donated
• https://bugs.libre-soc.org/show_bug.cgi?id=313 Branch pipe
  • EUR 150
  • donated
• https://bugs.libre-soc.org/show_bug.cgi?id=305 ALU pipe
  • EUR 200
  • donated
• http://bugs.libre-riscv.org/show_bug.cgi?id=178 coriolis2 tutorial
  • EUR 700
  • (lip6.fr donated)
• https://bugs.libre-soc.org/show_bug.cgi?id=521 multi-clock example
  • (total EUR 400 25% donated by LIP6)
  • EUR 100 lkcl
• https://bugs.libre-soc.org/show_bug.cgi?id=556 SV Overview
  • EUR 900
  • shared with lxo
• https://bugs.libre-soc.org/show_bug.cgi?id=557 AV Opcode documentation
  • EUR 1100
  • shared with lauri, jacob
• https://bugs.libre-soc.org/show_bug.cgi?id=620 Cocotb simulation
  • EUR 1250
  • Shared 50% with Staf
• https://bugs.libre-soc.org/show_bug.cgi?id=502 4k SRAM
  • EUR 300
  • Shared with Staf, cole
• https://bugs.libre-soc.org/show_bug.cgi?id=506 IORing
  • EUR 450
  • Shared with Staf
• https://bugs.libre-soc.org/show_bug.cgi?id=606 PowerDecoder2 simplification
• https://bugs.libre-soc.org/show_bug.cgi?id=519 ULX3S boot
  • Project 2019-10-043 06dec2020 wishbone
  • EUR (TBD)

Project 2019-10-029 14mar2020 coriolis2

• https://bugs.libre-soc.org/show_bug.cgi?id=508 pin-package for 180nm ASIC
  • (total EUR 100 shared 50% with staf)
  • EUR 50 lkcl
• https://bugs.libre-soc.org/show_bug.cgi?id=507 ls180 ioring and pads
  • (total EUR 1500 shared 50% with LIP6)
  • EUR 750 lkcl
• https://bugs.libre-soc.org/show_bug.cgi?id=521 multi-clock example
  • (total EUR 400 shared 75% with LIP6)
  • EUR 300 lkcl

Project 2019-02-012 06dec2020 Core

• https://bugs.libre-soc.org/show_bug.cgi?id=538 pipeline API continued
  • EUR 700 lkcl, EUR 500 programmerjake, total EUR 1200
• http://bugs.libre-riscv.org/show_bug.cgi?id=208 CORDIC
  • EUR 750 donated
• https://bugs.libre-soc.org/show_bug.cgi?id=94 LDST Dep Matrix
  • EUR 1500

Project 2019-10-043 06dec2020 wishbone

• https://bugs.libre-soc.org/show_bug.cgi?id=348 SPR pipe
  • EUR 250 lkcl, EUR 50 programmerjake, total EUR 300
• https://bugs.libre-soc.org/show_bug.cgi?id=416 DEC/TB
  • EUR 200
• https://bugs.libre-soc.org/show_bug.cgi?id=426 LD/ST sign-extend
  • EUR 100
• https://bugs.libre-soc.org/show_bug.cgi?id=468 wishbone downconverter
  • EUR 200
• https://bugs.libre-soc.org/show_bug.cgi?id=349 privileged detection
  • EUR 100
• https://bugs.libre-soc.org/show_bug.cgi?id=478 mfcr FXM
  • EUR 200
• https://bugs.libre-soc.org/show_bug.cgi?id=407 XICS
  • EUR 450
• https://bugs.libre-soc.org/show_bug.cgi?id=476 addme bug
  • EUR 100
• http://bugs.libre-riscv.org/show_bug.cgi?id=186 POWER Decoder
  • EUR 200 donated
• https://bugs.libre-soc.org/show_bug.cgi?id=493 DMI to JTAG
  • EUR 250 (share with cole)

Project 2019-10-032 06dec2020 proofs

• https://bugs.libre-soc.org/show_bug.cgi?id=306 POWER9 ALU proof
  • parent #195
  • EUR 400 donated
• https://bugs.libre-soc.org/show_bug.cgi?id=332 POWER9 CR proof
  • parent #195
  • EUR 300 donated
• https://bugs.libre-soc.org/show_bug.cgi?id=335 POWER9 BRANCH proof
  • EUR 400 donated
  • parent #195
• https://bugs.libre-soc.org/show_bug.cgi?id=331 POWER9 LOGICAL proof
  • EUR 400 donated
  • parent #195

Submitted for NLNet RFP

submitted 2021-dec-09 but not confirmed paid

• https://bugs.libre-soc.org/show_bug.cgi?id=709 better Partitioned eq (Assign)
  • EUR 300
• https://bugs.libre-soc.org/show_bug.cgi?id=707 Partitioned Cat
  • EUR 250
• https://bugs.libre-soc.org/show_bug.cgi?id=200 IEEE754 FP layout
• https://bugs.libre-soc.org/show_bug.cgi?id=654 symbiflow shared with veera
• https://bugs.libre-soc.org/show_bug.cgi?id=604 ISACaller RADIX MMU
  • EUR 800 shared between:
  • EUR 500 lkcl
  • EUR 300 tplaten
• https://bugs.libre-soc.org/show_bug.cgi?id=699 SVP64 Draft 0.1
  • EUR 5500 shared between:
  • EUR 3850 lkcl
  • EUR 1650 Others
• https://bugs.libre-soc.org/show_bug.cgi?id=653 DCT and FFT REMAP
  • EUR 1600
• https://bugs.libre-soc.org/show_bug.cgi?id=702 Matrix REMAP tests
  • EUR 600
• https://bugs.libre-soc.org/show_bug.cgi?id=712 ISACaller supporting XLEN
  • EUR 500 shared between:
  • EUR 100 lkcl
  • EUR 325 dmitry
  • EUR 75 maciej
• https://bugs.libre-soc.org/show_bug.cgi?id=730 adapt ALU test cases

Project 2019-02-012 04sep2020 Core

• https://bugs.libre-soc.org/show_bug.cgi?id=412 litex
  • EUR 2000 total, shared with florent. EUR 1200

Project 2019-02-012 Date {TEMPLATE INSERT DATE}

Paid

donation from NLNet confirmed received:

coriolis2 2021-apr-04

• https://bugs.libre-soc.org/show_bug.cgi?id=202 HDL changes for coriolis2
  • EUR 3000
  • shared with Staf 50%

2019-10P-046 19-aug-2020 NLNet 2019-10-046 Formal Standards OpenPOWER

• https://bugs.libre-soc.org/show_bug.cgi?id=463
  • EUR 2000, python POWER9 simulator
  • Shared 50% with ?mnolan, EUR 1000
• https://bugs.libre-soc.org/show_bug.cgi?id=272
  • EUR 250, functions needed for simulator
  • Shared 20% with ?mnolan, EUR 50

proofs 2019-10-032

• https://bugs.libre-soc.org/show_bug.cgi?id=421 Trap proof
  • EUR 500 shared 20% samuel, EUR 100
• https://bugs.libre-soc.org/show_bug.cgi?id=332 CR proof
  • EUR 300 shared 1/6 ?mnolan EUR 50
• https://bugs.libre-soc.org/show_bug.cgi?id=331 Logic proof
  • EUR 400 shared 25% ?mnolan EUR 100
• https://bugs.libre-soc.org/show_bug.cgi?id=312 countzero proof
  • EUR 150

wishbone 2019-10-043

• https://bugs.libre-soc.org/show_bug.cgi?id=460 Document 6600
  • EUR 500
• https://bugs.libre-soc.org/show_bug.cgi?id=393 WB to LDST
  • EUR 300
• https://bugs.libre-soc.org/show_bug.cgi?id=414 DMI interface
  • EUR 250
• http://bugs.libre-riscv.org/show_bug.cgi?id=186 opcode decoder
  • EUR 500, shared 40%, with ?mnolan (40%), programmerjake (20%), EUR 200
• https://bugs.libre-soc.org/show_bug.cgi?id=339 SHIFTROT pipe
  • EUR 300
• https://bugs.libre-soc.org/show_bug.cgi?id=441 test improvement
  • EUR 400, 50% shared programmerjake EUR 200
• https://bugs.libre-soc.org/show_bug.cgi?id=323 MUL pipe
  • EUR 750, 33% shared programmerjake EUR 250
• https://bugs.libre-soc.org/show_bug.cgi?id=351 virtual regfile port
  • EUR 200 50% shared, cole, EUR 100
• https://bugs.libre-soc.org/show_bug.cgi?id=345 POWER9 regfiles
  • EUR 200
• https://bugs.libre-soc.org/show_bug.cgi?id=325 Trap pipe
  • EUR 500 60% shared, cole (20%) samuel (20%), EUR 300
• https://bugs.libre-soc.org/show_bug.cgi?id=382 SRAM wishbone object
  • EUR 150
• https://bugs.libre-soc.org/show_bug.cgi?id=305 ALU pipe
  • EUR 400 shared 50% ?mnolan EUR 200
• https://bugs.libre-soc.org/show_bug.cgi?id=313 Branch pipe
  • EUR 250 shared 40% ?mnolan EUR 100
• https://bugs.libre-soc.org/show_bug.cgi?id=314 CR pipe
  • EUR 300 shared 1/3 ?mnolan EUR 100
• https://bugs.libre-soc.org/show_bug.cgi?id=330 Logic pipe
  • EUR 300 shared 50% ?mnolan EUR 150
• https://bugs.libre-soc.org/show_bug.cgi?id=346 regfile-core
  • EUR 750
• https://bugs.libre-soc.org/show_bug.cgi?id=344 add mtmsrd
• EUR 100
• https://bugs.libre-soc.org/show_bug.cgi?id=409 illegal instructions
• EUR 100
• https://bugs.libre-soc.org/show_bug.cgi?id=435 MSR and PC "state"
  • EUR 100
• https://bugs.libre-soc.org/show_bug.cgi?id=324 DIV pipe
  • EUR 1500 shared with programmerjake 1/3 (EUR 500)

Project 2019-02-012 28-apr-2020

• https://bugs.libre-soc.org/show_bug.cgi?id=292
  • 6600 scoreboard multi-read/write
  • EUR 600
• http://bugs.libre-riscv.org/show_bug.cgi?id=171 parent #48
  • Partitioned equals and greater than comparison
  • Shared 50% with ?mnolan
  • EUR 200 (each)
• http://bugs.libre-riscv.org/show_bug.cgi?id=173 parent #48
  • partitioned scalar/vector shift
  • Shared 50% with lkcl
  • EUR 350 (each)

2019-10P-046 28-apr-2020 NLNet 2019 Formal Standards OpenPOWER

• https://bugs.libre-soc.org/show_bug.cgi?id=269 parent #241
  • auto-parser of POWER9
  • Shared 50% with ?mnolan
  • EUR 500 (each)

Project 2019-10-029 Date 14mar2020

• http://bugs.libre-riscv.org/show_bug.cgi?id=178 coriolis2 start/tutorial
  • EUR 1200

Project 2019-02-012 Date 12mar2020

• http://bugs.libre-riscv.org/show_bug.cgi?id=113 fcvt range 100% EUR 250
• http://bugs.libre-riscv.org/show_bug.cgi?id=171 50% with ?mnolan EUR 200
• http://bugs.libre-riscv.org/show_bug.cgi?id=173 dynamic shift 50% with ?mnolan EUR 350
• http://bugs.libre-riscv.org/show_bug.cgi?id=127 EUR 900 shared with programmerjake

Project 2019-02-012 Date 28jan2020

• admin tasks
• http://bugs.libre-riscv.org/show_bug.cgi?id=147