diff options
| author | Eric Biggers <ebiggers@google.com> | 2025-02-16 14:55:28 -0800 |
|---|---|---|
| committer | Eric Biggers <ebiggers@google.com> | 2025-03-10 09:29:22 -0700 |
| commit | 72acff5f81851fe0858d2430b35b4b08f8f27a72 (patch) | |
| tree | 0f2b0ed74678564b4cb0c7a21a5c95fcd923b167 /arch/riscv/lib/crc32_msb.c | |
| parent | bbe2610bc5ada51418a4191e799cfb4577302a31 (diff) | |
riscv/crc32: reimplement the CRC32 functions using new template
Delete the previous Zbc optimized CRC32 code, and re-implement it using
the new template. The new implementation is more optimized and shares
more code among CRC variants.
Tested-by: Björn Töpel <bjorn@rivosinc.com>
Acked-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Link: https://lore.kernel.org/r/20250216225530.306980-3-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@google.com>
Diffstat (limited to 'arch/riscv/lib/crc32_msb.c')
| -rw-r--r-- | arch/riscv/lib/crc32_msb.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/arch/riscv/lib/crc32_msb.c b/arch/riscv/lib/crc32_msb.c new file mode 100644 index 000000000000..fdbeaccc369f --- /dev/null +++ b/arch/riscv/lib/crc32_msb.c @@ -0,0 +1,18 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * RISC-V optimized most-significant-bit-first CRC32 + * + * Copyright 2025 Google LLC + */ + +#include "crc-clmul.h" + +typedef u32 crc_t; +#define LSB_CRC 0 +#include "crc-clmul-template.h" + +u32 crc32_msb_clmul(u32 crc, const void *p, size_t len, + const struct crc_clmul_consts *consts) +{ + return crc_clmul(crc, p, len, consts); +} |