diff options
| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-10-12 14:08:35 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-10-12 14:08:35 +0300 |
| commit | 4a12f38e23d10a5dbad6cce0abaadd10e5a1aa68 (patch) | |
| tree | 533208f5479c17b9a7c162a425a967c7a7edf46b /lib/crc/riscv/crc-t10dif.h | |
| parent | 0d2f2f4f27694a2214701e7482ab7599ce4e5e77 (diff) | |
| parent | 449d48b1b99fdaa076166e200132705ac2bee711 (diff) | |
| download | linux-rolling-stable.tar.xz | |
Merge v6.17.2linux-rolling-stable
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'lib/crc/riscv/crc-t10dif.h')
| -rw-r--r-- | lib/crc/riscv/crc-t10dif.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/lib/crc/riscv/crc-t10dif.h b/lib/crc/riscv/crc-t10dif.h new file mode 100644 index 000000000000..cd6136cbfda1 --- /dev/null +++ b/lib/crc/riscv/crc-t10dif.h @@ -0,0 +1,18 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * RISC-V optimized CRC-T10DIF function + * + * Copyright 2025 Google LLC + */ + +#include <asm/hwcap.h> +#include <asm/alternative-macros.h> + +#include "crc-clmul.h" + +static inline u16 crc_t10dif_arch(u16 crc, const u8 *p, size_t len) +{ + if (riscv_has_extension_likely(RISCV_ISA_EXT_ZBC)) + return crc16_msb_clmul(crc, p, len, &crc16_msb_0x8bb7_consts); + return crc_t10dif_generic(crc, p, len); +} |