/* * Copyright (C) 2017 Marvell * * Antoine Tenart * * This file is licensed under the terms of the GNU General Public * License version 2. This program is licensed "as is" without any * warranty of any kind, whether express or implied. */ #ifndef __SAFEXCEL_H__ #define __SAFEXCEL_H__ #include #include #include #define EIP197_HIA_VERSION_LE 0xca35 #define EIP197_HIA_VERSION_BE 0x35ca /* Static configuration */ #define EIP197_DEFAULT_RING_SIZE 400 #define EIP197_MAX_TOKENS 5 #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) /* 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 0x0000 #define EIP197_HIA_DFE_THR_CTRL 0x0000 #define EIP197_HIA_DFE_THR_STAT 0x0004 #define EIP197_HIA_DSE_CFG 0x0000 #define EIP197_HIA_DSE_THR_CTRL 0x0000 #define EIP197_HIA_DSE_THR_STAT 0x0004 #define EIP197_HIA_RA_PE_CTRL 0x0010 #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 0x0000 #define EIP197_PE_IN_TBUF_THRES 0x0100 #define EIP197_PE_ICE_SCRATCH_RAM 0x0800 #define EIP197_PE_ICE_PUE_CTRL 0x0c80 #define EIP197_PE_ICE_SCRATCH_CTRL 0x0d04 #define EIP197_PE_ICE_FPP_CTRL 0x0d80 #define EIP197_PE_ICE_RAM_CTRL 0x0ff0 #define EIP197_PE_EIP96_FUNCTION_EN 0x1004 #define EIP197_PE_EIP96_CONTEXT_CTRL 0x1008 #define EIP197_PE_EIP96_CONTEXT_STAT 0x100c #define EIP197_PE_OUT_DBUF_THRES 0x1c00 #define EIP197_PE_OUT_TBUF_THRES 0x1d00 #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_BUG 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_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_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_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[12]; } __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 0x14 #define CONTEXT_CONTROL_TYPE_HASH_DECRYPT_OUT 0x15 #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_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_SHA1 (0x2 << 23) #define CONTEXT_CONTROL_CRYPTO_ALG_SHA224 (0x4 << 23) #define CONTEXT_CONTROL_CRYPTO_ALG_SHA256 (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_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_HASH_STORE BIT(19) /* 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 EIP197_CS_RC_MAX 52 #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 EIP197_CS_TRC_REC_WC 59 #define EIP197_CS_TRC_LG_REC_WC 73 /* 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_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_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_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_CTX_CTRL_IN_CMD BIT(8) #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_ring { void *base; void *base_end; dma_addr_t base_dma; /* write and read pointers */ void *write; void *read; /* number of elements used in the ring */ unsigned nr; unsigned offset; }; enum safexcel_alg_type { SAFEXCEL_ALG_TYPE_SKCIPHER, SAFEXCEL_ALG_TYPE_AHASH, }; struct safexcel_request { struct list_head list; struct crypto_async_request *req; }; struct safexcel_config { 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; }; enum safexcel_eip_version { EIP97, EIP197, }; 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; }; 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; /* context DMA pool */ struct dma_pool *context_pool; atomic_t ring_used; struct { spinlock_t lock; spinlock_t egress_lock; struct list_head list; struct workqueue_struct *workqueue; struct safexcel_work_data work_data; /* command/result rings */ struct safexcel_ring cdr; struct safexcel_ring rdr; /* 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; } ring[EIP197_MAX_RINGS]; }; struct safexcel_context { int (*send)(struct crypto_async_request *req, int ring, struct safexcel_request *request, 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; }; /* * 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; union { struct skcipher_alg skcipher; struct ahash_alg ahash; } alg; }; struct safexcel_inv_result { struct completion completion; int error; }; void safexcel_dequeue(struct safexcel_crypto_priv *priv, int ring); 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, struct safexcel_request *request); int safexcel_init_ring_descriptors(struct safexcel_crypto_priv *priv, struct safexcel_ring *cdr, struct safexcel_ring *rdr); int safexcel_select_ring(struct safexcel_crypto_priv *priv); void *safexcel_ring_next_rptr(struct safexcel_crypto_priv *priv, struct safexcel_ring *ring); void safexcel_ring_rollback_wptr(struct safexcel_crypto_priv *priv, struct safexcel_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); void safexcel_inv_complete(struct crypto_async_request *req, int error); /* available algorithms */ 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_sha1; extern struct safexcel_alg_template safexcel_alg_sha224; extern struct safexcel_alg_template safexcel_alg_sha256; extern struct safexcel_alg_template safexcel_alg_hmac_sha1; #endif