/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (C) 2017 Marvell
*
* Antoine Tenart <antoine.tenart@free-electrons.com>
*/
#ifndef __SAFEXCEL_H__
#define __SAFEXCEL_H__
#include <crypto/aead.h>
#include <crypto/algapi.h>
#include <crypto/internal/hash.h>
#include <crypto/sha.h>
#include <crypto/skcipher.h>
#define EIP197_HIA_VERSION_LE 0xca35
#define EIP197_HIA_VERSION_BE 0x35ca
/* Static configuration */
#define EIP197_DEFAULT_RING_SIZE 400
#define EIP197_MAX_TOKENS 8
#define EIP197_MAX_RINGS 4
#define EIP197_FETCH_COUNT 1
#define EIP197_MAX_BATCH_SZ 64
#define EIP197_GFP_FLAGS(base) ((base).flags & CRYPTO_TFM_REQ_MAY_SLEEP ? \
GFP_KERNEL : GFP_ATOMIC)
/* Custom on-stack requests (for invalidation) */
#define EIP197_SKCIPHER_REQ_SIZE sizeof(struct skcipher_request) + \
sizeof(struct safexcel_cipher_req)
#define EIP197_AHASH_REQ_SIZE sizeof(struct ahash_request) + \
sizeof(struct safexcel_ahash_req)
#define EIP197_AEAD_REQ_SIZE sizeof(struct aead_request) + \
sizeof(struct safexcel_cipher_req)
#define EIP197_REQUEST_ON_STACK(name, type, size) \
char __##name##_desc[size] CRYPTO_MINALIGN_ATTR; \
struct type##_request *name = (void *)__##name##_desc
/* Register base offsets */
#define EIP197_HIA_AIC(priv) ((priv)->base + (priv)->offsets.hia_aic)
#define EIP197_HIA_AIC_G(priv) ((priv)->base + (priv)->offsets.hia_aic_g)
#define EIP197_HIA_AIC_R(priv) ((priv)->base + (priv)->offsets.hia_aic_r)
#define EIP197_HIA_AIC_xDR(priv) ((priv)->base + (priv)->offsets.hia_aic_xdr)
#define EIP197_HIA_DFE(priv) ((priv)->base + (priv)->offsets.hia_dfe)
#define EIP197_HIA_DFE_THR(priv) ((priv)->base + (priv)->offsets.hia_dfe_thr)
#define EIP197_HIA_DSE(priv) ((priv)->base + (priv)->offsets.hia_dse)
#define EIP197_HIA_DSE_THR(priv) ((priv)->base + (priv)->offsets.hia_dse_thr)
#define EIP197_HIA_GEN_CFG(priv) ((priv)->base + (priv)->offsets.hia_gen_cfg)
#define EIP197_PE(priv) ((priv)->base + (priv)->offsets.pe)
/* EIP197 base offsets */
#define EIP197_HIA_AIC_BASE 0x90000
#define EIP197_HIA_AIC_G_BASE 0x90000
#define EIP197_HIA_AIC_R_BASE 0x90800
#define EIP197_HIA_AIC_xDR_BASE 0x80000
#define EIP197_HIA_DFE_BASE 0x8c000
#define EIP197_HIA_DFE_THR_BASE 0x8c040
#define EIP197_HIA_DSE_BASE 0x8d000
#define EIP197_HIA_DSE_THR_BASE 0x8d040
#define EIP197_HIA_GEN_CFG_BASE 0xf0000
#define EIP197_PE_BASE 0xa0000
/* EIP97 base offsets */
#define EIP97_HIA_AIC_BASE 0x0
#define EIP97_HIA_AIC_G_BASE 0x0
#define EIP97_HIA_AIC_R_BASE 0x0
#define EIP97_HIA_AIC_xDR_BASE 0x0
#define EIP97_HIA_DFE_BASE 0xf000
#define EIP97_HIA_DFE_THR_BASE 0xf200
#define EIP97_HIA_DSE_BASE 0xf400
#define EIP97_HIA_DSE_THR_BASE 0xf600
#define EIP97_HIA_GEN_CFG_BASE 0x10000
#define EIP97_PE_BASE 0x10000
/* CDR/RDR register offsets */
#define EIP197_HIA_xDR_OFF(priv, r) (EIP197_HIA_AIC_xDR(priv) + (r) * 0x1000)
#define EIP197_HIA_CDR(priv, r) (EIP197_HIA_xDR_OFF(priv, r))
#define EIP197_HIA_RDR(priv, r) (EIP197_HIA_xDR_OFF(priv, r) + 0x800)
#define EIP197_HIA_xDR_RING_BASE_ADDR_LO 0x0000
#define EIP197_HIA_xDR_RING_BASE_ADDR_HI 0x0004
#define EIP197_HIA_xDR_RING_SIZE 0x0018
#define EIP197_HIA_xDR_DESC_SIZE 0x001c
#define EIP197_HIA_xDR_CFG 0x0020
#define EIP197_HIA_xDR_DMA_CFG 0x0024
#define EIP197_HIA_xDR_THRESH 0x0028
#define EIP197_HIA_xDR_PREP_COUNT 0x002c
#define EIP197_HIA_xDR_PROC_COUNT 0x0030
#define EIP197_HIA_xDR_PREP_PNTR 0x0034
#define EIP197_HIA_xDR_PROC_PNTR 0x0038
#define EIP197_HIA_xDR_STAT 0x003c
/* register offsets */
#define EIP197_HIA_DFE_CFG(n) (0x0000 + (128 * (n)))
#define EIP197_HIA_DFE_THR_CTRL(n) (0x0000 + (128 * (n)))
#define EIP197_HIA_DFE_THR_STAT(n) (0x0004 + (128 * (n)))
#define EIP197_HIA_DSE_CFG(n) (0x0000 + (128 * (n)))
#define EIP197_HIA_DSE_THR_CTRL(n) (0x0000 + (128 * (n)))
#define EIP197_HIA_DSE_THR_STAT(n) (0x0004 + (128 * (n)))
#define EIP197_HIA_RA_PE_CTRL(n) (0x0010 + (8 * (n)))
#define EIP197_HIA_RA_PE_STAT 0x0014
#define EIP197_HIA_AIC_R_OFF(r) ((r) * 0x1000)
#define EIP197_HIA_AIC_R_ENABLE_CTRL(r) (0xe008 - EIP197_HIA_AIC_R_OFF(r))
#define EIP197_HIA_AIC_R_ENABLED_STAT(r) (0xe010 - EIP197_HIA_AIC_R_OFF(r))
#define EIP197_HIA_AIC_R_ACK(r) (0xe010 - EIP197_HIA_AIC_R_OFF(r))
#define EIP197_HIA_AIC_R_ENABLE_CLR(r) (0xe014 - EIP197_HIA_AIC_R_OFF(r))
#define EIP197_HIA_AIC_G_ENABLE_CTRL 0xf808
#define EIP197_HIA_AIC_G_ENABLED_STAT 0xf810
#define EIP197_HIA_AIC_G_ACK 0xf810
#define EIP197_HIA_MST_CTRL 0xfff4
#define EIP197_HIA_OPTIONS 0xfff8
#define EIP197_HIA_VERSION 0xfffc
#define EIP197_PE_IN_DBUF_THRES(n) (0x0000 + (0x2000 * (n)))
#define EIP197_PE_IN_TBUF_THRES(n) (0x0100 + (0x2000 * (n)))
#define EIP197_PE_ICE_SCRATCH_RAM(n) (0x0800 + (0x2000 * (n)))
#define EIP197_PE_ICE_PUE_CTRL(n) (0x0c80 + (0x2000 * (n)))
#define EIP197_PE_ICE_SCRATCH_CTRL(n) (0x0d04 + (0x2000 * (n)))
#define EIP197_PE_ICE_FPP_CTRL(n) (0x0d80 + (0x2000 * (n)))
#define EIP197_PE_ICE_RAM_CTRL(n) (0x0ff0 + (0x2000 * (n)))
#define EIP197_PE_EIP96_TOKEN_CTRL(n) (0x1000 + (0x2000 * (n)))
#define EIP197_PE_EIP96_FUNCTION_EN(n) (0x1004 + (0x2000 * (n)))
#define EIP197_PE_EIP96_CONTEXT_CTRL(n) (0x1008 + (0x2000 * (n)))
#define EIP197_PE_EIP96_CONTEXT_STAT(n) (0x100c + (0x2000 * (n)))
#define EIP197_PE_OUT_DBUF_THRES(n) (0x1c00 + (0x2000 * (n)))
#define EIP197_PE_OUT_TBUF_THRES(n) (0x1d00 + (0x2000 * (n)))
#define EIP197_MST_CTRL 0xfff4
/* EIP197-specific registers, no indirection */
#define EIP197_CLASSIFICATION_RAMS 0xe0000
#define EIP197_TRC_CTRL 0xf0800
#define EIP197_TRC_LASTRES 0xf0804
#define EIP197_TRC_REGINDEX 0xf0808
#define EIP197_TRC_PARAMS 0xf0820
#define EIP197_TRC_FREECHAIN 0xf0824
#define EIP197_TRC_PARAMS2 0xf0828
#define EIP197_TRC_ECCCTRL 0xf0830
#define EIP197_TRC_ECCSTAT 0xf0834
#define EIP197_TRC_ECCADMINSTAT 0xf0838
#define EIP197_TRC_ECCDATASTAT 0xf083c
#define EIP197_TRC_ECCDATA 0xf0840
#define EIP197_CS_RAM_CTRL 0xf7ff0
/* EIP197_HIA_xDR_DESC_SIZE */
#define EIP197_xDR_DESC_MODE_64BIT BIT(31)
/* EIP197_HIA_xDR_DMA_CFG */
#define EIP197_HIA_xDR_WR_RES_BUF BIT(22)
#define EIP197_HIA_xDR_WR_CTRL_BUF BIT(23)
#define EIP197_HIA_xDR_WR_OWN_BUF BIT(24)
#define EIP197_HIA_xDR_CFG_WR_CACHE(n) (((n) & 0x7) << 25)
#define EIP197_HIA_xDR_CFG_RD_CACHE(n) (((n) & 0x7) << 29)
/* EIP197_HIA_CDR_THRESH */
#define EIP197_HIA_CDR_THRESH_PROC_PKT(n) (n)
#define EIP197_HIA_CDR_THRESH_PROC_MODE BIT(22)
#define EIP197_HIA_CDR_THRESH_PKT_MODE BIT(23)
#define EIP197_HIA_CDR_THRESH_TIMEOUT(n) ((n) << 24) /* x256 clk cycles */
/* EIP197_HIA_RDR_THRESH */
#define EIP197_HIA_RDR_THRESH_PROC_PKT(n) (n)
#define EIP197_HIA_RDR_THRESH_PKT_MODE BIT(23)
#define EIP197_HIA_RDR_THRESH_TIMEOUT(n) ((n) << 24) /* x256 clk cycles */
/* EIP197_HIA_xDR_PREP_COUNT */
#define EIP197_xDR_PREP_CLR_COUNT BIT(31)
/* EIP197_HIA_xDR_PROC_COUNT */
#define EIP197_xDR_PROC_xD_PKT_OFFSET 24
#define EIP197_xDR_PROC_xD_PKT_MASK GENMASK(6, 0)
#define EIP197_xDR_PROC_xD_COUNT(n) ((n) << 2)
#define EIP197_xDR_PROC_xD_PKT(n) ((n) << 24)
#define EIP197_xDR_PROC_CLR_COUNT BIT(31)
/* EIP197_HIA_xDR_STAT */
#define EIP197_xDR_DMA_ERR BIT(0)
#define EIP197_xDR_PREP_CMD_THRES BIT(1)
#define EIP197_xDR_ERR BIT(2)
#define EIP197_xDR_THRESH BIT(4)
#define EIP197_xDR_TIMEOUT BIT(5)
#define EIP197_HIA_RA_PE_CTRL_RESET BIT(31)
#define EIP197_HIA_RA_PE_CTRL_EN BIT(30)
/* EIP197_HIA_OPTIONS */
#define EIP197_N_PES_OFFSET 4
#define EIP197_N_PES_MASK GENMASK(4, 0)
#define EIP97_N_PES_MASK GENMASK(2, 0)
/* EIP197_HIA_AIC_R_ENABLE_CTRL */
#define EIP197_CDR_IRQ(n) BIT((n) * 2)
#define EIP197_RDR_IRQ(n) BIT((n) * 2 + 1)
/* EIP197_HIA_DFE/DSE_CFG */
#define EIP197_HIA_DxE_CFG_MIN_DATA_SIZE(n) ((n) << 0)
#define EIP197_HIA_DxE_CFG_DATA_CACHE_CTRL(n) (((n) & 0x7) << 4)
#define EIP197_HIA_DxE_CFG_MAX_DATA_SIZE(n) ((n) << 8)
#define EIP197_HIA_DSE_CFG_ALWAYS_BUFFERABLE GENMASK(15, 14)
#define EIP197_HIA_DxE_CFG_MIN_CTRL_SIZE(n) ((n) << 16)
#define EIP197_HIA_DxE_CFG_CTRL_CACHE_CTRL(n) (((n) & 0x7) << 20)
#define EIP197_HIA_DxE_CFG_MAX_CTRL_SIZE(n) ((n) << 24)
#define EIP197_HIA_DFE_CFG_DIS_DEBUG (BIT(31) | BIT(29))
#define EIP197_HIA_DSE_CFG_EN_SINGLE_WR BIT(29)
#define EIP197_HIA_DSE_CFG_DIS_DEBUG BIT(31)
/* EIP197_HIA_DFE/DSE_THR_CTRL */
#define EIP197_DxE_THR_CTRL_EN BIT(30)
#define EIP197_DxE_THR_CTRL_RESET_PE BIT(31)
/* EIP197_HIA_AIC_G_ENABLED_STAT */
#define EIP197_G_IRQ_DFE(n) BIT((n) << 1)
#define EIP197_G_IRQ_DSE(n) BIT(((n) << 1) + 1)
#define EIP197_G_IRQ_RING BIT(16)
#define EIP197_G_IRQ_PE(n) BIT((n) + 20)
/* EIP197_HIA_MST_CTRL */
#define RD_CACHE_3BITS 0x5
#define WR_CACHE_3BITS 0x3
#define RD_CACHE_4BITS (RD_CACHE_3BITS << 1 | BIT(0))
#define WR_CACHE_4BITS (WR_CACHE_3BITS << 1 | BIT(0))
#define EIP197_MST_CTRL_RD_CACHE(n) (((n) & 0xf) << 0)
#define EIP197_MST_CTRL_WD_CACHE(n) (((n) & 0xf) << 4)
#define EIP197_MST_CTRL_TX_MAX_CMD(n) (((n) & 0xf) << 20)
#define EIP197_MST_CTRL_BYTE_SWAP BIT(24)
#define EIP197_MST_CTRL_NO_BYTE_SWAP BIT(25)
/* EIP197_PE_IN_DBUF/TBUF_THRES */
#define EIP197_PE_IN_xBUF_THRES_MIN(n) ((n) << 8)
#define EIP197_PE_IN_xBUF_THRES_MAX(n) ((n) << 12)
/* EIP197_PE_OUT_DBUF_THRES */
#define EIP197_PE_OUT_DBUF_THRES_MIN(n) ((n) << 0)
#define EIP197_PE_OUT_DBUF_THRES_MAX(n) ((n) << 4)
/* EIP197_PE_ICE_SCRATCH_CTRL */
#define EIP197_PE_ICE_SCRATCH_CTRL_CHANGE_TIMER BIT(2)
#define EIP197_PE_ICE_SCRATCH_CTRL_TIMER_EN BIT(3)
#define EIP197_PE_ICE_SCRATCH_CTRL_CHANGE_ACCESS BIT(24)
#define EIP197_PE_ICE_SCRATCH_CTRL_SCRATCH_ACCESS BIT(25)
/* EIP197_PE_ICE_SCRATCH_RAM */
#define EIP197_NUM_OF_SCRATCH_BLOCKS 32
/* EIP197_PE_ICE_PUE/FPP_CTRL */
#define EIP197_PE_ICE_x_CTRL_SW_RESET BIT(0)
#define EIP197_PE_ICE_x_CTRL_CLR_ECC_NON_CORR BIT(14)
#define EIP197_PE_ICE_x_CTRL_CLR_ECC_CORR BIT(15)
/* EIP197_PE_ICE_RAM_CTRL */
#define EIP197_PE_ICE_RAM_CTRL_PUE_PROG_EN BIT(0)
#define EIP197_PE_ICE_RAM_CTRL_FPP_PROG_EN BIT(1)
/* EIP197_PE_EIP96_TOKEN_CTRL */
#define EIP197_PE_EIP96_TOKEN_CTRL_CTX_UPDATES BIT(16)
#define EIP197_PE_EIP96_TOKEN_CTRL_REUSE_CTX BIT(19)
#define EIP197_PE_EIP96_TOKEN_CTRL_POST_REUSE_CTX BIT(20)
/* EIP197_PE_EIP96_FUNCTION_EN */
#define EIP197_FUNCTION_RSVD (BIT(6) | BIT(15) | BIT(20) | BIT(23))
#define EIP197_PROTOCOL_HASH_ONLY BIT(0)
#define EIP197_PROTOCOL_ENCRYPT_ONLY BIT(1)
#define EIP197_PROTOCOL_HASH_ENCRYPT BIT(2)
#define EIP197_PROTOCOL_HASH_DECRYPT BIT(3)
#define EIP197_PROTOCOL_ENCRYPT_HASH BIT(4)
#define EIP197_PROTOCOL_DECRYPT_HASH BIT(5)
#define EIP197_ALG_ARC4 BIT(7)
#define EIP197_ALG_AES_ECB BIT(8)
#define EIP197_ALG_AES_CBC BIT(9)
#define EIP197_ALG_AES_CTR_ICM BIT(10)
#define EIP197_ALG_AES_OFB BIT(11)
#define EIP197_ALG_AES_CFB BIT(12)
#define EIP197_ALG_DES_ECB BIT(13)
#define EIP197_ALG_DES_CBC BIT(14)
#define EIP197_ALG_DES_OFB BIT(16)
#define EIP197_ALG_DES_CFB BIT(17)
#define EIP197_ALG_3DES_ECB BIT(18)
#define EIP197_ALG_3DES_CBC BIT(19)
#define EIP197_ALG_3DES_OFB BIT(21)
#define EIP197_ALG_3DES_CFB BIT(22)
#define EIP197_ALG_MD5 BIT(24)
#define EIP197_ALG_HMAC_MD5 BIT(25)
#define EIP197_ALG_SHA1 BIT(26)
#define EIP197_ALG_HMAC_SHA1 BIT(27)
#define EIP197_ALG_SHA2 BIT(28)
#define EIP197_ALG_HMAC_SHA2 BIT(29)
#define EIP197_ALG_AES_XCBC_MAC BIT(30)
#define EIP197_ALG_GCM_HASH BIT(31)
/* EIP197_PE_EIP96_CONTEXT_CTRL */
#define EIP197_CONTEXT_SIZE(n) (n)
#define EIP197_ADDRESS_MODE BIT(8)
#define EIP197_CONTROL_MODE BIT(9)
/* Context Control */
struct safexcel_context_record {
u32 control0;
u32 control1;
__le32 data[40];
} __packed;
/* control0 */
#define CONTEXT_CONTROL_TYPE_NULL_OUT 0x0
#define CONTEXT_CONTROL_TYPE_NULL_IN 0x1
#define CONTEXT_CONTROL_TYPE_HASH_OUT 0x2
#define CONTEXT_CONTROL_TYPE_HASH_IN 0x3
#define CONTEXT_CONTROL_TYPE_CRYPTO_OUT 0x4
#define CONTEXT_CONTROL_TYPE_CRYPTO_IN 0x5
#define CONTEXT_CONTROL_TYPE_ENCRYPT_HASH_OUT 0x6
#define CONTEXT_CONTROL_TYPE_DECRYPT_HASH_IN 0x7
#define CONTEXT_CONTROL_TYPE_HASH_ENCRYPT_OUT 0xe
#define CONTEXT_CONTROL_TYPE_HASH_DECRYPT_IN 0xf
#define CONTEXT_CONTROL_RESTART_HASH BIT(4)
#define CONTEXT_CONTROL_NO_FINISH_HASH BIT(5)
#define CONTEXT_CONTROL_SIZE(n) ((n) << 8)
#define CONTEXT_CONTROL_KEY_EN BIT(16)
#define CONTEXT_CONTROL_CRYPTO_ALG_DES (0x0 << 17)
#define CONTEXT_CONTROL_CRYPTO_ALG_3DES (0x2 << 17)
#define CONTEXT_CONTROL_CRYPTO_ALG_AES128 (0x5 << 17)
#define CONTEXT_CONTROL_CRYPTO_ALG_AES192 (0x6 << 17)
#define CONTEXT_CONTROL_CRYPTO_ALG_AES256 (0x7 << 17)
#define CONTEXT_CONTROL_DIGEST_PRECOMPUTED (0x1 << 21)
#define CONTEXT_CONTROL_DIGEST_HMAC (0x3 << 21)
#define CONTEXT_CONTROL_CRYPTO_ALG_MD5 (0x0 << 23)
#define CONTEXT_CONTROL_CRYPTO_ALG_SHA1 (0x2 << 23)
#define CONTEXT_CONTROL_CRYPTO_ALG_SHA224 (0x4 << 23)
#define CONTEXT_CONTROL_CRYPTO_ALG_SHA256 (0x3 << 23)
#define CONTEXT_CONTROL_CRYPTO_ALG_SHA384 (0x6 << 23)
#define CONTEXT_CONTROL_CRYPTO_ALG_SHA512 (0x5 << 23)
#define CONTEXT_CONTROL_INV_FR (0x5 << 24)
#define CONTEXT_CONTROL_INV_TR (0x6 << 24)
/* control1 */
#define CONTEXT_CONTROL_CRYPTO_MODE_ECB (0 << 0)
#define CONTEXT_CONTROL_CRYPTO_MODE_CBC (1 << 0)
#define CONTEXT_CONTROL_IV0 BIT(5)
#define CONTEXT_CONTROL_IV1 BIT(6)
#define CONTEXT_CONTROL_IV2 BIT(7)
#define CONTEXT_CONTROL_IV3 BIT(8)
#define CONTEXT_CONTROL_DIGEST_CNT BIT(9)
#define CONTEXT_CONTROL_COUNTER_MODE BIT(10)
#define CONTEXT_CONTROL_CRYPTO_STORE BIT(12)
#define CONTEXT_CONTROL_HASH_STORE BIT(19)
/* The hash counter given to the engine in the context has a granularity of
* 64 bits.
*/
#define EIP197_COUNTER_BLOCK_SIZE 64
/* EIP197_CS_RAM_CTRL */
#define EIP197_TRC_ENABLE_0 BIT(4)
#define EIP197_TRC_ENABLE_1 BIT(5)
#define EIP197_TRC_ENABLE_2 BIT(6)
#define EIP197_TRC_ENABLE_MASK GENMASK(6, 4)
/* EIP197_TRC_PARAMS */
#define EIP197_TRC_PARAMS_SW_RESET BIT(0)
#define EIP197_TRC_PARAMS_DATA_ACCESS BIT(2)
#define EIP197_TRC_PARAMS_HTABLE_SZ(x) ((x) << 4)
#define EIP197_TRC_PARAMS_BLK_TIMER_SPEED(x) ((x) << 10)
#define EIP197_TRC_PARAMS_RC_SZ_LARGE(n) ((n) << 18)
/* EIP197_TRC_FREECHAIN */
#define EIP197_TRC_FREECHAIN_HEAD_PTR(p) (p)
#define EIP197_TRC_FREECHAIN_TAIL_PTR(p) ((p) << 16)
/* EIP197_TRC_PARAMS2 */
#define EIP197_TRC_PARAMS2_HTABLE_PTR(p) (p)
#define EIP197_TRC_PARAMS2_RC_SZ_SMALL(n) ((n) << 18)
/* Cache helpers */
#define EIP197B_CS_RC_MAX 52
#define EIP197D_CS_RC_MAX 96
#define EIP197_CS_RC_SIZE (4 * sizeof(u32))
#define EIP197_CS_RC_NEXT(x) (x)
#define EIP197_CS_RC_PREV(x) ((x) << 10)
#define EIP197_RC_NULL 0x3ff
#define EIP197B_CS_TRC_REC_WC 59
#define EIP197D_CS_TRC_REC_WC 64
#define EIP197B_CS_TRC_LG_REC_WC 73
#define EIP197D_CS_TRC_LG_REC_WC 80
#define EIP197B_CS_HT_WC 64
#define EIP197D_CS_HT_WC 256
/* Result data */
struct result_data_desc {
u32 packet_length:17;
u32 error_code:15;
u8 bypass_length:4;
u8 e15:1;
u16 rsvd0;
u8 hash_bytes:1;
u8 hash_length:6;
u8 generic_bytes:1;
u8 checksum:1;
u8 next_header:1;
u8 length:1;
u16 application_id;
u16 rsvd1;
u32 rsvd2;
} __packed;
/* Basic Result Descriptor format */
struct safexcel_result_desc {
u32 particle_size:17;
u8 rsvd0:3;
u8 descriptor_overflow:1;
u8 buffer_overflow:1;
u8 last_seg:1;
u8 first_seg:1;
u16 result_size:8;
u32 rsvd1;
u32 data_lo;
u32 data_hi;
struct result_data_desc result_data;
} __packed;
struct safexcel_token {
u32 packet_length:17;
u8 stat:2;
u16 instructions:9;
u8 opcode:4;
} __packed;
#define EIP197_TOKEN_HASH_RESULT_VERIFY BIT(16)
#define EIP197_TOKEN_CTX_OFFSET(x) (x)
#define EIP197_TOKEN_DIRECTION_EXTERNAL BIT(11)
#define EIP197_TOKEN_EXEC_IF_SUCCESSFUL (0x1 << 12)
#define EIP197_TOKEN_STAT_LAST_HASH BIT(0)
#define EIP197_TOKEN_STAT_LAST_PACKET BIT(1)
#define EIP197_TOKEN_OPCODE_DIRECTION 0x0
#define EIP197_TOKEN_OPCODE_INSERT 0x2
#define EIP197_TOKEN_OPCODE_NOOP EIP197_TOKEN_OPCODE_INSERT
#define EIP197_TOKEN_OPCODE_RETRIEVE 0x4
#define EIP197_TOKEN_OPCODE_VERIFY 0xd
#define EIP197_TOKEN_OPCODE_CTX_ACCESS 0xe
#define EIP197_TOKEN_OPCODE_BYPASS GENMASK(3, 0)
static inline void eip197_noop_token(struct safexcel_token *token)
{
token->opcode = EIP197_TOKEN_OPCODE_NOOP;
token->packet_length = BIT(2);
}
/* Instructions */
#define EIP197_TOKEN_INS_INSERT_HASH_DIGEST 0x1c
#define EIP197_TOKEN_INS_ORIGIN_IV0 0x14
#define EIP197_TOKEN_INS_ORIGIN_LEN(x) ((x) << 5)
#define EIP197_TOKEN_INS_TYPE_OUTPUT BIT(5)
#define EIP197_TOKEN_INS_TYPE_HASH BIT(6)
#define EIP197_TOKEN_INS_TYPE_CRYTO BIT(7)
#define EIP197_TOKEN_INS_LAST BIT(8)
/* Processing Engine Control Data */
struct safexcel_control_data_desc {
u32 packet_length:17;
u16 options:13;
u8 type:2;
u16 application_id;
u16 rsvd;
u8 refresh:2;
u32 context_lo:30;
u32 context_hi;
u32 control0;
u32 control1;
u32 token[EIP197_MAX_TOKENS];
} __packed;
#define EIP197_OPTION_MAGIC_VALUE BIT(0)
#define EIP197_OPTION_64BIT_CTX BIT(1)
#define EIP197_OPTION_RC_AUTO (0x2 << 3)
#define EIP197_OPTION_CTX_CTRL_IN_CMD BIT(8)
#define EIP197_OPTION_2_TOKEN_IV_CMD GENMASK(11, 10)
#define EIP197_OPTION_4_TOKEN_IV_CMD GENMASK(11, 9)
#define EIP197_TYPE_EXTENDED 0x3
/* Basic Command Descriptor format */
struct safexcel_command_desc {
u32 particle_size:17;
u8 rsvd0:5;
u8 last_seg:1;
u8 first_seg:1;
u16 additional_cdata_size:8;
u32 rsvd1;
u32 data_lo;
u32 data_hi;
struct safexcel_control_data_desc control_data;
} __packed;
/*
* Internal structures & functions
*/
enum eip197_fw {
FW_IFPP = 0,
FW_IPUE,
FW_NB
};
struct safexcel_desc_ring {
void *base;
void *base_end;
dma_addr_t base_dma;
/* write and read pointers */
void *write;
void *read;
/* descriptor element offset */
unsigned offset;
};
enum safexcel_alg_type {
SAFEXCEL_ALG_TYPE_SKCIPHER,
SAFEXCEL_ALG_TYPE_AEAD,
SAFEXCEL_ALG_TYPE_AHASH,
};
struct safexcel_config {
u32 pes;
u32 rings;
u32 cd_size;
u32 cd_offset;
u32 rd_size;
u32 rd_offset;
};
struct safexcel_work_data {
struct work_struct work;
struct safexcel_crypto_priv *priv;
int ring;
};
struct safexcel_ring {
spinlock_t lock;
struct workqueue_struct *workqueue;
struct safexcel_work_data work_data;
/* command/result rings */
struct safexcel_desc_ring cdr;
struct safexcel_desc_ring rdr;
/* result ring crypto API request */
struct crypto_async_request **rdr_req;
/* queue */
struct crypto_queue queue;
spinlock_t queue_lock;
/* Number of requests in the engine. */
int requests;
/* The ring is currently handling at least one request */
bool busy;
/* Store for current requests when bailing out of the dequeueing
* function when no enough resources are available.
*/
struct crypto_async_request *req;
struct crypto_async_request *backlog;
};
enum safexcel_eip_version {
EIP97IES = BIT(0),
EIP197B = BIT(1),
EIP197D = BIT(2),
};
struct safexcel_register_offsets {
u32 hia_aic;
u32 hia_aic_g;
u32 hia_aic_r;
u32 hia_aic_xdr;
u32 hia_dfe;
u32 hia_dfe_thr;
u32 hia_dse;
u32 hia_dse_thr;
u32 hia_gen_cfg;
u32 pe;
};
enum safexcel_flags {
EIP197_TRC_CACHE = BIT(0),
};
struct safexcel_crypto_priv {
void __iomem *base;
struct device *dev;
struct clk *clk;
struct clk *reg_clk;
struct safexcel_config config;
enum safexcel_eip_version version;
struct safexcel_register_offsets offsets;
u32 flags;
/* context DMA pool */
struct dma_pool *context_pool;
atomic_t ring_used;
struct safexcel_ring *ring;
};
struct safexcel_context {
int (*send)(struct crypto_async_request *req, int ring,
int *commands, int *results);
int (*handle_result)(struct safexcel_crypto_priv *priv, int ring,
struct crypto_async_request *req, bool *complete,
int *ret);
struct safexcel_context_record *ctxr;
dma_addr_t ctxr_dma;
int ring;
bool needs_inv;
bool exit_inv;
};
struct safexcel_ahash_export_state {
u64 len[2];
u64 processed[2];
u32 digest;
u32 state[SHA512_DIGEST_SIZE / sizeof(u32)];
u8 cache[SHA512_BLOCK_SIZE << 1];
};
/*
* Template structure to describe the algorithms in order to register them.
* It also has the purpose to contain our private structure and is actually
* the only way I know in this framework to avoid having global pointers...
*/
struct safexcel_alg_template {
struct safexcel_crypto_priv *priv;
enum safexcel_alg_type type;
u32 engines;
union {
struct skcipher_alg skcipher;
struct aead_alg aead;
struct ahash_alg ahash;
} alg;
};
struct safexcel_inv_result {
struct completion completion;
int error;
};
void safexcel_dequeue(struct safexcel_crypto_priv *priv, int ring);
int safexcel_rdesc_check_errors(struct safexcel_crypto_priv *priv,
struct safexcel_result_desc *rdesc);
void safexcel_complete(struct safexcel_crypto_priv *priv, int ring);
int safexcel_invalidate_cache(struct crypto_async_request *async,
struct safexcel_crypto_priv *priv,
dma_addr_t ctxr_dma, int ring);
int safexcel_init_ring_descriptors(struct safexcel_crypto_priv *priv,
struct safexcel_desc_ring *cdr,
struct safexcel_desc_ring *rdr);
int safexcel_select_ring(struct safexcel_crypto_priv *priv);
void *safexcel_ring_next_rptr(struct safexcel_crypto_priv *priv,
struct safexcel_desc_ring *ring);
void *safexcel_ring_first_rptr(struct safexcel_crypto_priv *priv, int ring);
void safexcel_ring_rollback_wptr(struct safexcel_crypto_priv *priv,
struct safexcel_desc_ring *ring);
struct safexcel_command_desc *safexcel_add_cdesc(struct safexcel_crypto_priv *priv,
int ring_id,
bool first, bool last,
dma_addr_t data, u32 len,
u32 full_data_len,
dma_addr_t context);
struct safexcel_result_desc *safexcel_add_rdesc(struct safexcel_crypto_priv *priv,
int ring_id,
bool first, bool last,
dma_addr_t data, u32 len);
int safexcel_ring_first_rdr_index(struct safexcel_crypto_priv *priv,
int ring);
int safexcel_ring_rdr_rdesc_index(struct safexcel_crypto_priv *priv,
int ring,
struct safexcel_result_desc *rdesc);
void safexcel_rdr_req_set(struct safexcel_crypto_priv *priv,
int ring,
struct safexcel_result_desc *rdesc,
struct crypto_async_request *req);
inline struct crypto_async_request *
safexcel_rdr_req_get(struct safexcel_crypto_priv *priv, int ring);
void safexcel_inv_complete(struct crypto_async_request *req, int error);
int safexcel_hmac_setkey(const char *alg, const u8 *key, unsigned int keylen,
void *istate, void *ostate);
/* available algorithms */
extern struct safexcel_alg_template safexcel_alg_ecb_des;
extern struct safexcel_alg_template safexcel_alg_cbc_des;
extern struct safexcel_alg_template safexcel_alg_ecb_des3_ede;
extern struct safexcel_alg_template safexcel_alg_cbc_des3_ede;
extern struct safexcel_alg_template safexcel_alg_ecb_aes;
extern struct safexcel_alg_template safexcel_alg_cbc_aes;
extern struct safexcel_alg_template safexcel_alg_md5;
extern struct safexcel_alg_template safexcel_alg_sha1;
extern struct safexcel_alg_template safexcel_alg_sha224;
extern struct safexcel_alg_template safexcel_alg_sha256;
extern struct safexcel_alg_template safexcel_alg_sha384;
extern struct safexcel_alg_template safexcel_alg_sha512;
extern struct safexcel_alg_template safexcel_alg_hmac_md5;
extern struct safexcel_alg_template safexcel_alg_hmac_sha1;
extern struct safexcel_alg_template safexcel_alg_hmac_sha224;
extern struct safexcel_alg_template safexcel_alg_hmac_sha256;
extern struct safexcel_alg_template safexcel_alg_hmac_sha384;
extern struct safexcel_alg_template safexcel_alg_hmac_sha512;
extern struct safexcel_alg_template safexcel_alg_authenc_hmac_sha1_cbc_aes;
extern struct safexcel_alg_template safexcel_alg_authenc_hmac_sha224_cbc_aes;
extern struct safexcel_alg_template safexcel_alg_authenc_hmac_sha256_cbc_aes;
extern struct safexcel_alg_template safexcel_alg_authenc_hmac_sha384_cbc_aes;
extern struct safexcel_alg_template safexcel_alg_authenc_hmac_sha512_cbc_aes;
#endif
