Book a Demo!
CoCalc Logo Icon
StoreFeaturesDocsShareSupportNewsAboutPoliciesSign UpSign In
torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/drivers/crypto/caam/pkc_desc.c
26288 views
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 */

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 */

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 */

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 */

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


75