3  * crc32.c - CRC32 and CRC32C using LoongArch crc* instructions
18 #define _CRC32(crc, value, size, type)			\  argument
22 		: "+r" (crc)				\
27 #define CRC32(crc, value, size)		_CRC32(crc, value, size, crc)  argument
28 #define CRC32C(crc, value, size)	_CRC32(crc, value, size, crcc)  argument
32 	u32 crc = crc_;  in crc32_loongarch_hw()  local
37 		CRC32(crc, value, d);  in crc32_loongarch_hw()
45 		CRC32(crc, value, w);  in crc32_loongarch_hw()
52 		CRC32(crc, value, h);  in crc32_loongarch_hw()
59 		CRC32(crc, value, b);  in crc32_loongarch_hw()
62 	return crc;  in crc32_loongarch_hw()
67 	u32 crc = crc_;  in crc32c_loongarch_hw()  local
72 		CRC32C(crc, value, d);  in crc32c_loongarch_hw()
80 		CRC32C(crc, value, w);  in crc32c_loongarch_hw()
87 		CRC32C(crc, value, h);  in crc32c_loongarch_hw()
94 		CRC32C(crc, value, b);  in crc32c_loongarch_hw()
97 	return crc;  in crc32c_loongarch_hw()
108 	u32 crc;  member
116 	ctx->crc = mctx->key;  in chksum_init()
141 	ctx->crc = crc32_loongarch_hw(ctx->crc, data, length);  in chksum_update()
149 	ctx->crc = crc32c_loongarch_hw(ctx->crc, data, length);  in chksumc_update()
157 	put_unaligned_le32(ctx->crc, out);  in chksum_final()
165 	put_unaligned_le32(~ctx->crc, out);  in chksumc_final()
169 static int __chksum_finup(u32 crc, const u8 *data, unsigned int len, u8 *out)  in __chksum_finup()  argument
171 	put_unaligned_le32(crc32_loongarch_hw(crc, data, len), out);  in __chksum_finup()
175 static int __chksumc_finup(u32 crc, const u8 *data, unsigned int len, u8 *out)  in __chksumc_finup()  argument
177 	put_unaligned_le32(~crc32c_loongarch_hw(crc, data, len), out);  in __chksumc_finup()
185 	return __chksum_finup(ctx->crc, data, len, out);  in chksum_finup()
192 	return __chksumc_finup(ctx->crc, data, len, out);  in chksumc_finup()
299 MODULE_DESCRIPTION("CRC32 and CRC32C using LoongArch crc* instructions");