diff options
Diffstat (limited to 'arch/riscv/lib/crc32.c')
-rw-r--r-- | arch/riscv/lib/crc32.c | 53 |
1 files changed, 0 insertions, 53 deletions
diff --git a/arch/riscv/lib/crc32.c b/arch/riscv/lib/crc32.c deleted file mode 100644 index a3188b7d9c40..000000000000 --- a/arch/riscv/lib/crc32.c +++ /dev/null @@ -1,53 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-or-later -/* - * RISC-V optimized CRC32 functions - * - * Copyright 2025 Google LLC - */ - -#include <asm/hwcap.h> -#include <asm/alternative-macros.h> -#include <linux/crc32.h> -#include <linux/module.h> - -#include "crc-clmul.h" - -u32 crc32_le_arch(u32 crc, const u8 *p, size_t len) -{ - if (riscv_has_extension_likely(RISCV_ISA_EXT_ZBC)) - return crc32_lsb_clmul(crc, p, len, - &crc32_lsb_0xedb88320_consts); - return crc32_le_base(crc, p, len); -} -EXPORT_SYMBOL(crc32_le_arch); - -u32 crc32_be_arch(u32 crc, const u8 *p, size_t len) -{ - if (riscv_has_extension_likely(RISCV_ISA_EXT_ZBC)) - return crc32_msb_clmul(crc, p, len, - &crc32_msb_0x04c11db7_consts); - return crc32_be_base(crc, p, len); -} -EXPORT_SYMBOL(crc32_be_arch); - -u32 crc32c_arch(u32 crc, const u8 *p, size_t len) -{ - if (riscv_has_extension_likely(RISCV_ISA_EXT_ZBC)) - return crc32_lsb_clmul(crc, p, len, - &crc32_lsb_0x82f63b78_consts); - return crc32c_base(crc, p, len); -} -EXPORT_SYMBOL(crc32c_arch); - -u32 crc32_optimizations(void) -{ - if (riscv_has_extension_likely(RISCV_ISA_EXT_ZBC)) - return CRC32_LE_OPTIMIZATION | - CRC32_BE_OPTIMIZATION | - CRC32C_OPTIMIZATION; - return 0; -} -EXPORT_SYMBOL(crc32_optimizations); - -MODULE_DESCRIPTION("RISC-V optimized CRC32 functions"); -MODULE_LICENSE("GPL"); |