RISC-V: provide some accelerated cryptography implementations using vector extensions

This series provides cryptographic implementations using the vector crypto
extensions[1] including:
1. AES cipher
2. AES with CBC/CTR/ECB/XTS block modes
3. ChaCha20 stream cipher
4. GHASH for GCM
5. SHA-224/256 and SHA-384/512 hash
6. SM3 hash
7. SM4 cipher

This patch set is based on Heiko Stuebner's work at:
Link: https://lore.kernel.org/all/20230711153743.1970625-1-heik...

The implementations reuse the perl-asm scripts from OpenSSL[2] with some
changes adapting for the kernel crypto framework.
The perl-asm scripts generate the opcodes into `.S` files instead of asm
mnemonics. The reason for using opcodes is because the assembler hasn't
supported the vector-crypto extensions yet.

All changes pass the kernel run-time crypto self tests and the extra tests
with vector-crypto-enabled qemu.
Link: https://lists.gnu.org/archive/html/qemu-devel/2023-10/msg...

This series depend on:
1. kernel 6.6-rc7
Link: https://github.com/torvalds/linux/commit/05d3ef8bba77c1b5...
2. support kernel-mode vector
Link: https://lore.kernel.org/all/20230721112855.1006-1-andy.ch...
3. vector crypto extensions detection
Link: https://lore.kernel.org/lkml/20231017131456.2053396-1-cle...
4. fix the error message:
    alg: skcipher: skipping comparison tests for xts-aes-aesni because
    xts(ecb(aes-generic)) is unavailable
Link: https://lore.kernel.org/linux-crypto/20231009023116.26621...

Here is a branch on github applying with all dependent patches:
Link: https://github.com/JerryShih/linux/tree/dev/jerrys/vector...

[1]
Link: https://github.com/riscv/riscv-crypto/blob/56ed7952d13eb5...
[2]
Link: https://github.com/openssl/openssl/pull/21923

Heiko Stuebner (2):
  RISC-V: add helper function to read the vector VLEN
  RISC-V: hook new crypto subdir into build-system

Jerry Shih (10):
  RISC-V: crypto: add OpenSSL perl module for vector instructions
  RISC-V: crypto: add Zvkned accelerated AES implementation
  crypto: scatterwalk - Add scatterwalk_next() to get the next
    scatterlist in scatter_walk
  RISC-V: crypto: add accelerated AES-CBC/CTR/ECB/XTS implementations
  RISC-V: crypto: add Zvkg accelerated GCM GHASH implementation
  RISC-V: crypto: add Zvknha/b accelerated SHA224/256 implementations
  RISC-V: crypto: add Zvknhb accelerated SHA384/512 implementations
  RISC-V: crypto: add Zvksed accelerated SM4 implementation
  RISC-V: crypto: add Zvksh accelerated SM3 implementation
  RISC-V: crypto: add Zvkb accelerated ChaCha20 implementation

 arch/riscv/Kbuild                             |    1 +
 arch/riscv/crypto/Kconfig                     |  122 ++
 arch/riscv/crypto/Makefile                    |   68 +
 .../crypto/aes-riscv64-block-mode-glue.c      |  486 +++++++
 arch/riscv/crypto/aes-riscv64-glue.c          |  163 +++
 arch/riscv/crypto/aes-riscv64-glue.h          |   28 +
 .../crypto/aes-riscv64-zvbb-zvkg-zvkned.pl    |  944 +++++++++++++
 arch/riscv/crypto/aes-riscv64-zvkb-zvkned.pl  |  416 ++++++
 arch/riscv/crypto/aes-riscv64-zvkned.pl       | 1198 +++++++++++++++++
 arch/riscv/crypto/chacha-riscv64-glue.c       |  120 ++
 arch/riscv/crypto/chacha-riscv64-zvkb.pl      |  322 +++++
 arch/riscv/crypto/ghash-riscv64-glue.c        |  191 +++
 arch/riscv/crypto/ghash-riscv64-zvkg.pl       |  100 ++
 arch/riscv/crypto/riscv.pm                    |  828 ++++++++++++
 arch/riscv/crypto/sha256-riscv64-glue.c       |  140 ++
 .../sha256-riscv64-zvkb-zvknha_or_zvknhb.pl   |  318 +++++
 arch/riscv/crypto/sha512-riscv64-glue.c       |  133 ++
 .../crypto/sha512-riscv64-zvkb-zvknhb.pl      |  266 ++++
 arch/riscv/crypto/sm3-riscv64-glue.c          |  121 ++
 arch/riscv/crypto/sm3-riscv64-zvksh.pl        |  230 ++++
 arch/riscv/crypto/sm4-riscv64-glue.c          |  120 ++
 arch/riscv/crypto/sm4-riscv64-zvksed.pl       |  268 ++++
 arch/riscv/include/asm/vector.h               |   11 +
 crypto/Kconfig                                |    3 +
 include/crypto/scatterwalk.h                  |    9 +-
 25 files changed, 6604 insertions(+), 2 deletions(-)
 create mode 100644 arch/riscv/crypto/Kconfig
 create mode 100644 arch/riscv/crypto/Makefile
 create mode 100644 arch/riscv/crypto/aes-riscv64-block-mode-glue.c
 create mode 100644 arch/riscv/crypto/aes-riscv64-glue.c
 create mode 100644 arch/riscv/crypto/aes-riscv64-glue.h
 create mode 100644 arch/riscv/crypto/aes-riscv64-zvbb-zvkg-zvkned.pl
 create mode 100644 arch/riscv/crypto/aes-riscv64-zvkb-zvkned.pl
 create mode 100644 arch/riscv/crypto/aes-riscv64-zvkned.pl
 create mode 100644 arch/riscv/crypto/chacha-riscv64-glue.c
 create mode 100644 arch/riscv/crypto/chacha-riscv64-zvkb.pl
 create mode 100644 arch/riscv/crypto/ghash-riscv64-glue.c
 create mode 100644 arch/riscv/crypto/ghash-riscv64-zvkg.pl
 create mode 100644 arch/riscv/crypto/riscv.pm
 create mode 100644 arch/riscv/crypto/sha256-riscv64-glue.c
 create mode 100644 arch/riscv/crypto/sha256-riscv64-zvkb-zvknha_or_zvknhb.pl
 create mode 100644 arch/riscv/crypto/sha512-riscv64-glue.c
 create mode 100644 arch/riscv/crypto/sha512-riscv64-zvkb-zvknhb.pl
 create mode 100644 arch/riscv/crypto/sm3-riscv64-glue.c
 create mode 100644 arch/riscv/crypto/sm3-riscv64-zvksh.pl
 create mode 100644 arch/riscv/crypto/sm4-riscv64-glue.c
 create mode 100644 arch/riscv/crypto/sm4-riscv64-zvksed.pl

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2.28.0