Add Armv8.1-M Keccak x1 backend

.github/actionlint.yaml

@@ -12,3 +12,4 @@ self-hosted-runner:
     - pqcp-x64
     # RISE RISC-V runner
     - ubuntu-24.04-riscv
+    - self-hosted-nucleo-n657x0

.github/actions/bench/action.yml

@@ -89,10 +89,6 @@ runs:
               --ldflags="${{ inputs.ldflags }}" \
               --opt=$([[ ${{ inputs.opt }} == "false" ]] && echo "no_opt" || echo "opt")  \
               -v  ${{ inputs.bench_extra_args }}
-    - name: Check namespace
-      shell: ${{ env.SHELL }}
-      run: |
-        check-namespace
     - name: Store benchmark result
       uses: benchmark-action/github-action-benchmark@52576c92bccf6ac60c8223ec7eb2565637cae9ba # v1.22.1
       with:

.github/workflows/bench.yml

@@ -38,6 +38,8 @@ jobs:
           bench_extra_args: ""
           nix_shell: bench
           only_no_opt: false
+          extra_makefile: ""
+          zephyr_target: ""
         - system: rpi5
           name: Arm Cortex-A76 (Raspberry Pi 5) benchmarks
           bench_pmu: PERF
@@ -48,6 +50,8 @@ jobs:
           nix_shell: bench
           only_no_opt: false
           cross_prefix: ""
+          extra_makefile: ""
+          zephyr_target: ""
         - system: a55
           name: Arm Cortex-A55 (Snapdragon 888) benchmarks
           bench_pmu: PERF
@@ -57,6 +61,8 @@ jobs:
           bench_extra_args: -w exec-on-a55
           nix_shell: bench
           only_no_opt: false
+          extra_makefile: ""
+          zephyr_target: ""
         - system: bpi
           name: SpacemiT K1 8 (Banana Pi F3) benchmarks
           bench_pmu: PERF
@@ -67,6 +73,8 @@ jobs:
           cross_prefix: riscv64-unknown-linux-gnu-
           nix_shell: cross-riscv64
           only_no_opt: true
+          extra_makefile: ""
+          zephyr_target: ""
         - system: m1-mac-mini
           name: Mac Mini (M1, 2020) benchmarks
           bench_pmu: MAC
@@ -76,12 +84,29 @@ jobs:
           bench_extra_args: "-r"
           nix_shell: bench
           only_no_opt: false
+          extra_makefile: ""
+          zephyr_target: ""
+        - system: nucleo-n657x0
+          name: Arm Cortex-M55 (NUCLEO-N657X0-Q) benchmarks
+          bench_pmu: NO
+          archflags: ""
+          cflags: ""
+          ldflags: ""
+          bench_extra_args: ""
+          nix_shell: zephyr
+          only_no_opt: false
+          cross_prefix: ""
+          extra_makefile: test/zephyr/platform.mk
+          zephyr_target: nucleo-n657x0-q
     if: github.repository_owner == 'pq-code-package' && !github.event.pull_request.head.repo.fork && (github.event.label.name == 'benchmark' || github.ref == 'refs/heads/main')
     runs-on: self-hosted-${{ matrix.target.system }}
     steps:
       - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
       - uses: ./.github/actions/bench
         if: ${{ !matrix.target.only_no_opt }}
+        env:
+          EXTRA_MAKEFILE: ${{ matrix.target.extra_makefile }}
+          ZEPHYR_TARGET: ${{ matrix.target.zephyr_target }}
         with:
           name: ${{ matrix.target.name }} (opt)
           cflags: ${{ matrix.target.cflags }}
@@ -95,6 +120,9 @@ jobs:
           cross_prefix: ${{ matrix.target.cross_prefix }}
           opt: true
       - uses: ./.github/actions/bench
+        env:
+          EXTRA_MAKEFILE: ${{ matrix.target.extra_makefile }}
+          ZEPHYR_TARGET: ${{ matrix.target.zephyr_target }}
         with:
           name: ${{ matrix.target.name }} (no-opt)
           cflags: ${{ matrix.target.cflags }}

.github/workflows/zephyr.yml

@@ -53,5 +53,5 @@ jobs:
           ZEPHYR_TARGET: ${{ matrix.target.board }}
         run: |
           opt=${{ matrix.target.opt == 'all' && 'opt' || 'no_opt' }}
-          nix develop .#zephyr --command ./scripts/tests bench --no-auto -c PMU --opt=$opt
-          nix develop .#zephyr --command ./scripts/tests bench --no-auto --components -c PMU --opt=$opt
+          nix develop .#zephyr --command ./scripts/tests bench --no-auto -c NO --opt=$opt
+          nix develop .#zephyr --command ./scripts/tests bench --no-auto --components -c NO --opt=$opt

BIBLIOGRAPHY.md

@@ -36,6 +36,16 @@ source code and documentation.
 * Referenced from:
   - [README.md](README.md)
 
+### `ADOMNICAI23`
+
+* An update on Keccak performance on ARMv7-M
+* Author(s):
+  - Alexandre Adomnicai
+* URL: https://eprint.iacr.org/2023/773
+* Referenced from:
+  - [dev/fips202/armv81m_opt/src/keccak_f1600_x1_armv7m_opt_m7.S](dev/fips202/armv81m_opt/src/keccak_f1600_x1_armv7m_opt_m7.S)
+  - [mldsa/src/fips202/native/armv81m/src/keccak_f1600_x1_armv7m_opt_m7.S](mldsa/src/fips202/native/armv81m/src/keccak_f1600_x1_armv7m_opt_m7.S)
+
 ### `ArmARMv8M`
 
 * Armv8-M Architecture Reference Manual (DDI 0553)
@@ -362,6 +372,18 @@ source code and documentation.
 * Referenced from:
   - [mldsa/src/sign.c](mldsa/src/sign.c)
 
+### `SLOTHYM7`
+
+* Enabling Microarchitectural Agility: Taking ML-KEM and ML-DSA from Cortex-M4 to M7 with SLOTHY
+* Author(s):
+  - Amin Abdulrahman
+  - Matthias J. Kannwischer
+  - Joel Lim
+* URL: https://eprint.iacr.org/2025/366
+* Referenced from:
+  - [dev/fips202/armv81m_opt/src/keccak_f1600_x1_armv7m_opt_m7.S](dev/fips202/armv81m_opt/src/keccak_f1600_x1_armv7m_opt_m7.S)
+  - [mldsa/src/fips202/native/armv81m/src/keccak_f1600_x1_armv7m_opt_m7.S](mldsa/src/fips202/native/armv81m/src/keccak_f1600_x1_armv7m_opt_m7.S)
+
 ### `SLOTHY_Paper`
 
 * Fast and Clean: Auditable high-performance assembly via constraint solving
@@ -395,6 +417,20 @@ source code and documentation.
   - [test/abicheck/README.md](test/abicheck/README.md)
   - [test/abicheck/x86_64/abicheck_x86_64.c](test/abicheck/x86_64/abicheck_x86_64.c)
 
+### `XKCP`
+
+* eXtended Keccak Code Package
+* Author(s):
+  - Guido Bertoni
+  - Joan Daemen
+  - Michaël Peeters
+  - Gilles Van Assche
+  - Ronny Van Keer
+* URL: https://github.com/XKCP/XKCP
+* Referenced from:
+  - [dev/fips202/armv81m_opt/src/keccak_f1600_x1_armv7m_opt_m7.S](dev/fips202/armv81m_opt/src/keccak_f1600_x1_armv7m_opt_m7.S)
+  - [mldsa/src/fips202/native/armv81m/src/keccak_f1600_x1_armv7m_opt_m7.S](mldsa/src/fips202/native/armv81m/src/keccak_f1600_x1_armv7m_opt_m7.S)
+
 ### `libmceliece`
 
 * libmceliece implementation of Classic McEliece

BIBLIOGRAPHY.yml

@@ -109,6 +109,29 @@
   - Klein, Fabien
   url: https://eprint.iacr.org/2022/1303
 
+- id: ADOMNICAI23
+  name: "An update on Keccak performance on ARMv7-M"
+  author: Adomnicai, Alexandre
+  url: https://eprint.iacr.org/2023/773
+
+- id: SLOTHYM7
+  name: "Enabling Microarchitectural Agility: Taking ML-KEM and ML-DSA from Cortex-M4 to M7 with SLOTHY"
+  author:
+  - Abdulrahman, Amin
+  - Kannwischer, Matthias J.
+  - Lim, Joel
+  url: https://eprint.iacr.org/2025/366
+
+- id: XKCP
+  name: eXtended Keccak Code Package
+  author:
+  - Bertoni, Guido
+  - Daemen, Joan
+  - Peeters, Michaël
+  - Van Assche, Gilles
+  - Van Keer, Ronny
+  url: https://github.com/XKCP/XKCP
+
 - id: NeonNTT
   name: "Neon NTT: Faster Dilithium, Kyber, and Saber on Cortex-A72 and Apple M1"
   year: 2022