linux/drivers/crypto/inside-secure/safexcel.h
Pascal van Leeuwen 465527bcae crypto: inside-secure - Probe transform record cache RAM sizes
This patch actually probes the transform record cache data and
administration RAM sizes, instead of making assumptions, and then
configures the TRC based on the actually probed values.
This allows the driver to work with EIP197 HW that has TRC RAM
sizes different from those of the Marvell EIP197B/D variants.

Signed-off-by: Pascal van Leeuwen <pvanleeuwen@verimatrix.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2019-09-13 21:17:58 +10:00

858 lines
28 KiB
C

/* 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_BE 0xca35
#define EIP197_HIA_VERSION_LE 0x35ca
#define EIP97_VERSION_LE 0x9e61
#define EIP197_VERSION_LE 0x3ac5
#define EIP96_VERSION_LE 0x9f60
#define EIP197_REG_LO16(reg) (reg & 0xffff)
#define EIP197_REG_HI16(reg) ((reg >> 16) & 0xffff)
#define EIP197_VERSION_MASK(reg) ((reg >> 16) & 0xfff)
#define EIP197_VERSION_SWAP(reg) (((reg & 0xf0) << 4) | \
((reg >> 4) & 0xf0) | \
((reg >> 12) & 0xf))
/* Static configuration */
#define EIP197_DEFAULT_RING_SIZE 400
#define EIP197_MAX_TOKENS 18
#define EIP197_MAX_RINGS 4
#define EIP197_FETCH_DEPTH 2
#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
/* Xilinx dev board base offsets */
#define EIP197_XLX_GPIO_BASE 0x200000
#define EIP197_XLX_IRQ_BLOCK_ID_ADDR 0x2000
#define EIP197_XLX_IRQ_BLOCK_ID_VALUE 0x1fc2
#define EIP197_XLX_USER_INT_ENB_MSK 0x2004
#define EIP197_XLX_USER_INT_ENB_SET 0x2008
#define EIP197_XLX_USER_INT_ENB_CLEAR 0x200c
#define EIP197_XLX_USER_INT_BLOCK 0x2040
#define EIP197_XLX_USER_INT_PEND 0x2048
#define EIP197_XLX_USER_VECT_LUT0_ADDR 0x2080
#define EIP197_XLX_USER_VECT_LUT0_IDENT 0x03020100
#define EIP197_XLX_USER_VECT_LUT1_ADDR 0x2084
#define EIP197_XLX_USER_VECT_LUT1_IDENT 0x07060504
#define EIP197_XLX_USER_VECT_LUT2_ADDR 0x2088
#define EIP197_XLX_USER_VECT_LUT2_IDENT 0x0b0a0908
#define EIP197_XLX_USER_VECT_LUT3_ADDR 0x208c
#define EIP197_XLX_USER_VECT_LUT3_IDENT 0x0f0e0d0c
/* Helper defines for probe function */
#define EIP197_IRQ_NUMBER(i, is_pci) (i + is_pci)
/* 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)
#define EIP197_GLOBAL(priv) ((priv)->base + (priv)->offsets.global)
/* 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
#define EIP197_GLOBAL_BASE 0xf0000
/* 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
#define EIP97_GLOBAL_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_PUTF_CTRL(n) (0x0d00 + (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_PPTF_CTRL(n) (0x0e00 + (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_EIP96_FUNCTION2_EN(n) (0x1030 + (0x2000 * (n)))
#define EIP197_PE_EIP96_OPTIONS(n) (0x13f8 + (0x2000 * (n)))
#define EIP197_PE_EIP96_VERSION(n) (0x13fc + (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
#define EIP197_VERSION 0xfffc
/* 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_FLUE_CACHEBASE_LO(n) (0xf6000 + (32 * (n)))
#define EIP197_FLUE_CACHEBASE_HI(n) (0xf6004 + (32 * (n)))
#define EIP197_FLUE_CONFIG(n) (0xf6010 + (32 * (n)))
#define EIP197_FLUE_OFFSETS 0xf6808
#define EIP197_FLUE_ARC4_OFFSET 0xf680c
#define EIP197_FLUE_IFC_LUT(n) (0xf6820 + (4 * (n)))
#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)
#define EIP197_HWDATAW_OFFSET 25
#define EIP197_HWDATAW_MASK GENMASK(3, 0)
#define EIP97_HWDATAW_MASK GENMASK(2, 0)
#define EIP197_CFSIZE_OFFSET 9
#define EIP197_CFSIZE_ADJUST 4
#define EIP97_CFSIZE_OFFSET 8
#define EIP197_CFSIZE_MASK GENMASK(3, 0)
#define EIP97_CFSIZE_MASK GENMASK(4, 0)
#define EIP197_RFSIZE_OFFSET 12
#define EIP197_RFSIZE_ADJUST 4
#define EIP97_RFSIZE_OFFSET 12
#define EIP197_RFSIZE_MASK GENMASK(3, 0)
#define EIP97_RFSIZE_MASK GENMASK(4, 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_PE_ICE_PUE/FPP_CTRL */
#define EIP197_PE_ICE_UENG_START_OFFSET(n) ((n) << 16)
#define EIP197_PE_ICE_UENG_INIT_ALIGN_MASK 0x7ff0
#define EIP197_PE_ICE_UENG_DEBUG_RESET BIT(3)
/* 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)
#define EIP197_MST_CTRL_BYTE_SWAP_BITS GENMASK(25, 24)
/* 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_NO_TOKEN_WAIT BIT(17)
#define EIP197_PE_EIP96_TOKEN_CTRL_ENABLE_TIMEOUT BIT(22)
/* EIP197_PE_EIP96_FUNCTION_EN */
#define EIP197_FUNCTION_ALL 0xffffffff
/* EIP197_PE_EIP96_CONTEXT_CTRL */
#define EIP197_CONTEXT_SIZE(n) (n)
#define EIP197_ADDRESS_MODE BIT(8)
#define EIP197_CONTROL_MODE BIT(9)
/* EIP197_FLUE_CONFIG */
#define EIP197_FLUE_CONFIG_MAGIC 0xc7000004
/* 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_XCM (0x2 << 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_CRYPTO_ALG_GHASH (0x4 << 23)
#define CONTEXT_CONTROL_CRYPTO_ALG_XCBC128 (0x1 << 23)
#define CONTEXT_CONTROL_CRYPTO_ALG_XCBC192 (0x2 << 23)
#define CONTEXT_CONTROL_CRYPTO_ALG_XCBC256 (0x3 << 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_CRYPTO_MODE_OFB (4 << 0)
#define CONTEXT_CONTROL_CRYPTO_MODE_CFB (5 << 0)
#define CONTEXT_CONTROL_CRYPTO_MODE_CTR_LOAD (6 << 0)
#define CONTEXT_CONTROL_CRYPTO_MODE_XTS (7 << 0)
#define CONTEXT_CONTROL_CRYPTO_MODE_XCM ((6 << 0) | BIT(17))
#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)
#define EIP197_XCM_MODE_GCM 1
#define EIP197_XCM_MODE_CCM 2
/* 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)
#define EIP197_CS_BANKSEL_MASK GENMASK(14, 12)
#define EIP197_CS_BANKSEL_OFS 12
/* 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 EIP197_CS_TRC_REC_WC 64
#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
/* 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;
/*
* The EIP(1)97 only needs to fetch the descriptor part of
* the result descriptor, not the result token part!
*/
#define EIP197_RD64_FETCH_SIZE ((sizeof(struct safexcel_result_desc) -\
sizeof(struct result_data_desc)) /\
sizeof(u32))
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_INSERT_REMRES 0xa
#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_TOKEN 0x1b
#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_CRYPTO 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
*/
#define EIP197_FW_TERMINAL_NOPS 2
#define EIP197_FW_START_POLLCNT 16
#define EIP197_FW_PUE_READY 0x14
#define EIP197_FW_FPP_READY 0x18
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;
};
/* EIP integration context flags */
enum safexcel_eip_version {
/* Platform (EIP integration context) specifier */
EIP97IES_MRVL,
EIP197B_MRVL,
EIP197D_MRVL,
EIP197_DEVBRD
};
/* Priority we use for advertising our algorithms */
#define SAFEXCEL_CRA_PRIORITY 300
/* EIP algorithm presence flags */
enum safexcel_eip_algorithms {
SAFEXCEL_ALG_BC0 = BIT(5),
SAFEXCEL_ALG_SM4 = BIT(6),
SAFEXCEL_ALG_SM3 = BIT(7),
SAFEXCEL_ALG_CHACHA20 = BIT(8),
SAFEXCEL_ALG_POLY1305 = BIT(9),
SAFEXCEL_SEQMASK_256 = BIT(10),
SAFEXCEL_SEQMASK_384 = BIT(11),
SAFEXCEL_ALG_AES = BIT(12),
SAFEXCEL_ALG_AES_XFB = BIT(13),
SAFEXCEL_ALG_DES = BIT(15),
SAFEXCEL_ALG_DES_XFB = BIT(16),
SAFEXCEL_ALG_ARC4 = BIT(18),
SAFEXCEL_ALG_AES_XTS = BIT(20),
SAFEXCEL_ALG_WIRELESS = BIT(21),
SAFEXCEL_ALG_MD5 = BIT(22),
SAFEXCEL_ALG_SHA1 = BIT(23),
SAFEXCEL_ALG_SHA2_256 = BIT(25),
SAFEXCEL_ALG_SHA2_512 = BIT(26),
SAFEXCEL_ALG_XCBC_MAC = BIT(27),
SAFEXCEL_ALG_CBC_MAC_ALL = BIT(29),
SAFEXCEL_ALG_GHASH = BIT(30),
SAFEXCEL_ALG_SHA3 = BIT(31),
};
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;
u32 global;
};
enum safexcel_flags {
EIP197_TRC_CACHE = BIT(0),
SAFEXCEL_HW_EIP197 = BIT(1),
};
struct safexcel_hwconfig {
enum safexcel_eip_algorithms algo_flags;
int hwver;
int hiaver;
int pever;
int hwdataw;
int hwcfsize;
int hwrfsize;
};
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;
struct safexcel_hwconfig hwconfig;
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;
};
#define HASH_CACHE_SIZE SHA512_BLOCK_SIZE
struct safexcel_ahash_export_state {
u64 len;
u64 processed;
u32 digest;
u32 state[SHA512_DIGEST_SIZE / sizeof(u32)];
u8 cache[HASH_CACHE_SIZE];
};
/*
* 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;
enum safexcel_eip_algorithms algo_mask;
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_cfb_aes;
extern struct safexcel_alg_template safexcel_alg_ofb_aes;
extern struct safexcel_alg_template safexcel_alg_ctr_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;
extern struct safexcel_alg_template safexcel_alg_authenc_hmac_sha1_cbc_des3_ede;
extern struct safexcel_alg_template safexcel_alg_authenc_hmac_sha1_ctr_aes;
extern struct safexcel_alg_template safexcel_alg_authenc_hmac_sha224_ctr_aes;
extern struct safexcel_alg_template safexcel_alg_authenc_hmac_sha256_ctr_aes;
extern struct safexcel_alg_template safexcel_alg_authenc_hmac_sha384_ctr_aes;
extern struct safexcel_alg_template safexcel_alg_authenc_hmac_sha512_ctr_aes;
extern struct safexcel_alg_template safexcel_alg_xts_aes;
extern struct safexcel_alg_template safexcel_alg_gcm;
extern struct safexcel_alg_template safexcel_alg_ccm;
#endif