From 533edf9f93e84cabeae7c1acc8b3816c79f6f35a Mon Sep 17 00:00:00 2001 From: Gilad Ben-Yossef Date: Thu, 18 Apr 2019 16:38:43 +0300 Subject: [PATCH] crypto: ccree - adapt CPP descriptor to new HW Adapt the CPP descriptor to new HW interface. Signed-off-by: Gilad Ben-Yossef Signed-off-by: Herbert Xu --- drivers/crypto/ccree/cc_cipher.c | 42 +++++++++++++------------ drivers/crypto/ccree/cc_hw_queue_defs.h | 18 +++++------ drivers/crypto/ccree/cc_kernel_regs.h | 6 ---- 3 files changed, 29 insertions(+), 37 deletions(-) diff --git a/drivers/crypto/ccree/cc_cipher.c b/drivers/crypto/ccree/cc_cipher.c index 8acedbafbcb3..4c7231d24631 100644 --- a/drivers/crypto/ccree/cc_cipher.c +++ b/drivers/crypto/ccree/cc_cipher.c @@ -546,6 +546,19 @@ static void cc_setup_state_desc(struct crypto_tfm *tfm, } } +static int cc_out_flow_mode(struct cc_cipher_ctx *ctx_p) +{ + switch (ctx_p->flow_mode) { + case S_DIN_to_AES: + return DIN_AES_DOUT; + case S_DIN_to_DES: + return DIN_DES_DOUT; + case S_DIN_to_SM4: + return DIN_SM4_DOUT; + default: + return ctx_p->flow_mode; + } +} static void cc_setup_key_desc(struct crypto_tfm *tfm, struct cipher_req_ctx *req_ctx, @@ -577,12 +590,15 @@ static void cc_setup_key_desc(struct crypto_tfm *tfm, case DRV_CIPHER_ECB: /* Load key */ hw_desc_init(&desc[*seq_size]); + set_cipher_mode(&desc[*seq_size], cipher_mode); + set_cipher_config0(&desc[*seq_size], direction); + if (cc_key_type(tfm) == CC_POLICY_PROTECTED_KEY) { - set_cpp_crypto_key(&desc[*seq_size], ctx_p->cpp.alg, - cipher_mode, ctx_p->cpp.slot); + /* We use the AES key size coding for all CPP algs */ + set_key_size_aes(&desc[*seq_size], key_len); + set_cpp_crypto_key(&desc[*seq_size], ctx_p->cpp.slot); + flow_mode = cc_out_flow_mode(ctx_p); } else { - set_cipher_mode(&desc[*seq_size], cipher_mode); - set_cipher_config0(&desc[*seq_size], direction); if (flow_mode == S_DIN_to_AES) { if (cc_key_type(tfm) == CC_HW_PROTECTED_KEY) { set_hw_crypto_key(&desc[*seq_size], @@ -606,9 +622,9 @@ static void cc_setup_key_desc(struct crypto_tfm *tfm, key_dma_addr, key_len, NS_BIT); set_key_size_des(&desc[*seq_size], key_len); } - set_flow_mode(&desc[*seq_size], flow_mode); set_setup_mode(&desc[*seq_size], SETUP_LOAD_KEY0); } + set_flow_mode(&desc[*seq_size], flow_mode); (*seq_size)++; break; case DRV_CIPHER_XTS: @@ -670,22 +686,8 @@ static void cc_setup_flow_desc(struct crypto_tfm *tfm, { struct cc_cipher_ctx *ctx_p = crypto_tfm_ctx(tfm); struct device *dev = drvdata_to_dev(ctx_p->drvdata); - unsigned int flow_mode = ctx_p->flow_mode; + unsigned int flow_mode = cc_out_flow_mode(ctx_p); - switch (ctx_p->flow_mode) { - case S_DIN_to_AES: - flow_mode = DIN_AES_DOUT; - break; - case S_DIN_to_DES: - flow_mode = DIN_DES_DOUT; - break; - case S_DIN_to_SM4: - flow_mode = DIN_SM4_DOUT; - break; - default: - dev_err(dev, "invalid flow mode, flow_mode = %d\n", flow_mode); - return; - } /* Process */ if (req_ctx->dma_buf_type == CC_DMA_BUF_DLLI) { dev_dbg(dev, " data params addr %pad length 0x%X\n", diff --git a/drivers/crypto/ccree/cc_hw_queue_defs.h b/drivers/crypto/ccree/cc_hw_queue_defs.h index 2c8cd907d8db..fd693681808e 100644 --- a/drivers/crypto/ccree/cc_hw_queue_defs.h +++ b/drivers/crypto/ccree/cc_hw_queue_defs.h @@ -55,8 +55,6 @@ #define WORD4_DATA_FLOW_MODE CC_GENMASK(4, DATA_FLOW_MODE) #define WORD4_KEY_SIZE CC_GENMASK(4, KEY_SIZE) #define WORD4_SETUP_OPERATION CC_GENMASK(4, SETUP_OPERATION) -#define WORD4_CPP_ALG CC_GENMASK(4, CPP_ALG) -#define WORD4_CPP_SLOT CC_GENMASK(4, CPP_SLOT) #define WORD5_DIN_ADDR_HIGH CC_GENMASK(5, DIN_ADDR_HIGH) #define WORD5_DOUT_ADDR_HIGH CC_GENMASK(5, DOUT_ADDR_HIGH) @@ -202,7 +200,8 @@ enum cc_hash_cipher_pad { HASH_CIPHER_DO_PADDING_RESERVE32 = S32_MAX, }; -#define CC_CPP_DESC_INDICATOR 0xFF0000UL +#define CC_CPP_DIN_ADDR 0xFF00FF00UL +#define CC_CPP_DIN_SIZE 0xFF00FFUL /*****************************/ /* Descriptor packing macros */ @@ -272,17 +271,14 @@ static inline void set_din_no_dma(struct cc_hw_desc *pdesc, u32 addr, u32 size) * @slot: slot number * @ksize: key size */ -static inline void set_cpp_crypto_key(struct cc_hw_desc *pdesc, - enum cc_cpp_alg alg, - enum drv_cipher_mode mode, u8 slot) +static inline void set_cpp_crypto_key(struct cc_hw_desc *pdesc, u8 slot) { - u8 mode_val = (mode == DRV_CIPHER_CBC ? 0 : 1); + pdesc->word[0] |= CC_CPP_DIN_ADDR; - pdesc->word[1] |= FIELD_PREP(WORD1_DIN_SIZE, CC_CPP_DESC_INDICATOR); + pdesc->word[1] |= FIELD_PREP(WORD1_DIN_SIZE, CC_CPP_DIN_SIZE); pdesc->word[1] |= FIELD_PREP(WORD1_LOCK_QUEUE, 1); - pdesc->word[0] |= FIELD_PREP(WORD0_CPP_CIPHER_MODE, mode_val); - pdesc->word[4] |= FIELD_PREP(WORD4_CPP_ALG, alg); - pdesc->word[4] |= FIELD_PREP(WORD4_CPP_SLOT, slot); + + pdesc->word[4] |= FIELD_PREP(WORD4_SETUP_OPERATION, slot); } /* diff --git a/drivers/crypto/ccree/cc_kernel_regs.h b/drivers/crypto/ccree/cc_kernel_regs.h index f148d13c4b65..8d7262a35156 100644 --- a/drivers/crypto/ccree/cc_kernel_regs.h +++ b/drivers/crypto/ccree/cc_kernel_regs.h @@ -31,8 +31,6 @@ #define CC_DSCRPTR_QUEUE_WORD0_REG_OFFSET 0xE80UL #define CC_DSCRPTR_QUEUE_WORD0_VALUE_BIT_SHIFT 0x0UL #define CC_DSCRPTR_QUEUE_WORD0_VALUE_BIT_SIZE 0x20UL -#define CC_DSCRPTR_QUEUE_WORD0_CPP_CIPHER_MODE_BIT_SHIFT 0x5UL -#define CC_DSCRPTR_QUEUE_WORD0_CPP_CIPHER_MODE_BIT_SIZE 0x3UL #define CC_DSCRPTR_QUEUE_WORD1_REG_OFFSET 0xE84UL #define CC_DSCRPTR_QUEUE_WORD1_DIN_DMA_MODE_BIT_SHIFT 0x0UL #define CC_DSCRPTR_QUEUE_WORD1_DIN_DMA_MODE_BIT_SIZE 0x2UL @@ -99,10 +97,6 @@ #define CC_DSCRPTR_QUEUE_WORD4_WORD_SWAP_BIT_SIZE 0x1UL #define CC_DSCRPTR_QUEUE_WORD4_BYTES_SWAP_BIT_SHIFT 0x1FUL #define CC_DSCRPTR_QUEUE_WORD4_BYTES_SWAP_BIT_SIZE 0x1UL -#define CC_DSCRPTR_QUEUE_WORD4_CPP_SLOT_BIT_SHIFT 0xAUL -#define CC_DSCRPTR_QUEUE_WORD4_CPP_SLOT_BIT_SIZE 0x3UL -#define CC_DSCRPTR_QUEUE_WORD4_CPP_ALG_BIT_SHIFT 0xDUL -#define CC_DSCRPTR_QUEUE_WORD4_CPP_ALG_BIT_SIZE 0x1UL #define CC_DSCRPTR_QUEUE_WORD5_REG_OFFSET 0xE94UL #define CC_DSCRPTR_QUEUE_WORD5_DIN_ADDR_HIGH_BIT_SHIFT 0x0UL #define CC_DSCRPTR_QUEUE_WORD5_DIN_ADDR_HIGH_BIT_SIZE 0x10UL -- 2.30.2