x86/crypto/twofish_glue_3way.c

1 // SPDX-License-Identifier: GPL-2.0-or-later
3  * Glue Code for 3-way parallel assembler optimized version of Twofish
25 	return twofish_setkey(&tfm->base, key, keylen);  in twofish_setkey_skcipher()
41 	u128 ivs[2];  in twofish_dec_blk_cbc_3way()
51 	u128_xor(&dst[2], &dst[2], &ivs[1]);  in twofish_dec_blk_cbc_3way()
81 		dst[2] = src[2];  in twofish_enc_blk_ctr_3way()
88 	le128_to_be128(&ctrblks[2], iv);  in twofish_enc_blk_ctr_3way()
96 	.num_funcs = 2,
97 	.fpu_blocks_limit = -1,
109 	.num_funcs = 2,
110 	.fpu_blocks_limit = -1,
122 	.num_funcs = 2,
123 	.fpu_blocks_limit = -1,
135 	.num_funcs = 2,
136 	.fpu_blocks_limit = -1,
175 		.base.cra_driver_name	= "ecb-twofish-3way",
187 		.base.cra_driver_name	= "cbc-twofish-3way",
200 		.base.cra_driver_name	= "ctr-twofish-3way",
225 		 * On Atom, twofish-3way is slower than original assembler  in is_blacklisted_cpu()
226 		 * implementation. Twofish-3way trades off some performance in  in is_blacklisted_cpu()
229 		 * more performance than was trade off, on out-of-order CPUs.  in is_blacklisted_cpu()
238 		 * On Pentium 4, twofish-3way is slower than original assembler  in is_blacklisted_cpu()
240 		 * left-shifts (which are really slow on P4) needed to store and  in is_blacklisted_cpu()
257 			"twofish-x86_64-3way: performance on this CPU "  in init()
259 			"twofish-x86_64-3way.\n");  in init()
260 		return -ENODEV;  in init()
276 MODULE_DESCRIPTION("Twofish Cipher Algorithm, 3-way parallel asm optimized");
278 MODULE_ALIAS_CRYPTO("twofish-asm");