1 // SPDX-License-Identifier: GPL-2.0
2 /*
3  * caam - Freescale FSL CAAM support for Public Key Cryptography descriptors
4  *
5  * Copyright 2016 Freescale Semiconductor, Inc.
6  *
7  * There is no Shared Descriptor for PKC so that the Job Descriptor must carry
8  * all the desired key parameters, input and output pointers.
9  */
10 #include "caampkc.h"
11 #include "desc_constr.h"
12 
13 /* Descriptor for RSA Public operation */
init_rsa_pub_desc(u32 * desc,struct rsa_pub_pdb * pdb)14 void init_rsa_pub_desc(u32 *desc, struct rsa_pub_pdb *pdb)
15 {
16 	init_job_desc_pdb(desc, 0, SIZEOF_RSA_PUB_PDB);
17 	append_cmd(desc, pdb->sgf);
18 	append_ptr(desc, pdb->f_dma);
19 	append_ptr(desc, pdb->g_dma);
20 	append_ptr(desc, pdb->n_dma);
21 	append_ptr(desc, pdb->e_dma);
22 	append_cmd(desc, pdb->f_len);
23 	append_operation(desc, OP_TYPE_UNI_PROTOCOL | OP_PCLID_RSAENC_PUBKEY);
24 }
25 
26 /* Descriptor for RSA Private operation - Private Key Form #1 */
init_rsa_priv_f1_desc(u32 * desc,struct rsa_priv_f1_pdb * pdb)27 void init_rsa_priv_f1_desc(u32 *desc, struct rsa_priv_f1_pdb *pdb)
28 {
29 	init_job_desc_pdb(desc, 0, SIZEOF_RSA_PRIV_F1_PDB);
30 	append_cmd(desc, pdb->sgf);
31 	append_ptr(desc, pdb->g_dma);
32 	append_ptr(desc, pdb->f_dma);
33 	append_ptr(desc, pdb->n_dma);
34 	append_ptr(desc, pdb->d_dma);
35 	append_operation(desc, OP_TYPE_UNI_PROTOCOL | OP_PCLID_RSADEC_PRVKEY |
36 			 RSA_PRIV_KEY_FRM_1);
37 }
38 
39 /* Descriptor for RSA Private operation - Private Key Form #2 */
init_rsa_priv_f2_desc(u32 * desc,struct rsa_priv_f2_pdb * pdb)40 void init_rsa_priv_f2_desc(u32 *desc, struct rsa_priv_f2_pdb *pdb)
41 {
42 	init_job_desc_pdb(desc, 0, SIZEOF_RSA_PRIV_F2_PDB);
43 	append_cmd(desc, pdb->sgf);
44 	append_ptr(desc, pdb->g_dma);
45 	append_ptr(desc, pdb->f_dma);
46 	append_ptr(desc, pdb->d_dma);
47 	append_ptr(desc, pdb->p_dma);
48 	append_ptr(desc, pdb->q_dma);
49 	append_ptr(desc, pdb->tmp1_dma);
50 	append_ptr(desc, pdb->tmp2_dma);
51 	append_cmd(desc, pdb->p_q_len);
52 	append_operation(desc, OP_TYPE_UNI_PROTOCOL | OP_PCLID_RSADEC_PRVKEY |
53 			 RSA_PRIV_KEY_FRM_2);
54 }
55 
56 /* Descriptor for RSA Private operation - Private Key Form #3 */
init_rsa_priv_f3_desc(u32 * desc,struct rsa_priv_f3_pdb * pdb)57 void init_rsa_priv_f3_desc(u32 *desc, struct rsa_priv_f3_pdb *pdb)
58 {
59 	init_job_desc_pdb(desc, 0, SIZEOF_RSA_PRIV_F3_PDB);
60 	append_cmd(desc, pdb->sgf);
61 	append_ptr(desc, pdb->g_dma);
62 	append_ptr(desc, pdb->f_dma);
63 	append_ptr(desc, pdb->c_dma);
64 	append_ptr(desc, pdb->p_dma);
65 	append_ptr(desc, pdb->q_dma);
66 	append_ptr(desc, pdb->dp_dma);
67 	append_ptr(desc, pdb->dq_dma);
68 	append_ptr(desc, pdb->tmp1_dma);
69 	append_ptr(desc, pdb->tmp2_dma);
70 	append_cmd(desc, pdb->p_q_len);
71 	append_operation(desc, OP_TYPE_UNI_PROTOCOL | OP_PCLID_RSADEC_PRVKEY |
72 			 RSA_PRIV_KEY_FRM_3);
73 }
74