static int ccp5_perform_ecc(struct ccp_op *op)
{
struct ccp5_desc desc;
union ccp_function function;
/* Zero out all the fields of the command desc */
memset(&desc, 0, Q_DESC_SIZE);
CCP5_CMD_ENGINE(&desc) = CCP_ENGINE_ECC;
CCP5_CMD_SOC(&desc) = 0;
CCP5_CMD_IOC(&desc) = 1;
CCP5_CMD_INIT(&desc) = 0;
CCP5_CMD_EOM(&desc) = 1;
CCP5_CMD_PROT(&desc) = 0;
function.raw = 0;
function.ecc.mode = op->u.ecc.function;
CCP5_CMD_FUNCTION(&desc) = function.raw;
CCP5_CMD_LEN(&desc) = op->src.u.dma.length;
CCP5_CMD_SRC_LO(&desc) = ccp_addr_lo(&op->src.u.dma);
CCP5_CMD_SRC_HI(&desc) = ccp_addr_hi(&op->src.u.dma);
CCP5_CMD_SRC_MEM(&desc) = CCP_MEMTYPE_SYSTEM;
CCP5_CMD_DST_LO(&desc) = ccp_addr_lo(&op->dst.u.dma);
CCP5_CMD_DST_HI(&desc) = ccp_addr_hi(&op->dst.u.dma);
CCP5_CMD_DST_MEM(&desc) = CCP_MEMTYPE_SYSTEM;
return ccp5_do_cmd(&desc, op->cmd_q);
}
static int ccp_perform_xts_aes(struct ccp_op *op)
{
u32 cr[6];
/* Fill out the register contents for REQ1 through REQ6 */
cr[0] = (CCP_ENGINE_XTS_AES_128 << REQ1_ENGINE_SHIFT)
| (op->u.xts.action << REQ1_AES_ACTION_SHIFT)
| (op->u.xts.unit_size << REQ1_XTS_AES_SIZE_SHIFT)
| (op->sb_key << REQ1_KEY_KSB_SHIFT);
cr[1] = op->src.u.dma.length - 1;
cr[2] = ccp_addr_lo(&op->src.u.dma);
cr[3] = (op->sb_ctx << REQ4_KSB_SHIFT)
| (CCP_MEMTYPE_SYSTEM << REQ4_MEMTYPE_SHIFT)
| ccp_addr_hi(&op->src.u.dma);
cr[4] = ccp_addr_lo(&op->dst.u.dma);
cr[5] = (CCP_MEMTYPE_SYSTEM << REQ6_MEMTYPE_SHIFT)
| ccp_addr_hi(&op->dst.u.dma);
if (op->eom)
cr[0] |= REQ1_EOM;
if (op->init)
cr[0] |= REQ1_INIT;
return ccp_do_cmd(op, cr, ARRAY_SIZE(cr));
}
static int ccp5_perform_passthru(struct ccp_op *op)
{
struct ccp5_desc desc;
union ccp_function function;
struct ccp_dma_info *saddr = &op->src.u.dma;
struct ccp_dma_info *daddr = &op->dst.u.dma;
op->cmd_q->total_pt_ops++;
memset(&desc, 0, Q_DESC_SIZE);
CCP5_CMD_ENGINE(&desc) = CCP_ENGINE_PASSTHRU;
CCP5_CMD_SOC(&desc) = 0;
CCP5_CMD_IOC(&desc) = 1;
CCP5_CMD_INIT(&desc) = 0;
CCP5_CMD_EOM(&desc) = op->eom;
CCP5_CMD_PROT(&desc) = 0;
function.raw = 0;
CCP_PT_BYTESWAP(&function) = op->u.passthru.byte_swap;
CCP_PT_BITWISE(&function) = op->u.passthru.bit_mod;
CCP5_CMD_FUNCTION(&desc) = function.raw;
/* Length of source data is always 256 bytes */
if (op->src.type == CCP_MEMTYPE_SYSTEM)
CCP5_CMD_LEN(&desc) = saddr->length;
else
CCP5_CMD_LEN(&desc) = daddr->length;
if (op->src.type == CCP_MEMTYPE_SYSTEM) {
CCP5_CMD_SRC_LO(&desc) = ccp_addr_lo(&op->src.u.dma);
CCP5_CMD_SRC_HI(&desc) = ccp_addr_hi(&op->src.u.dma);
CCP5_CMD_SRC_MEM(&desc) = CCP_MEMTYPE_SYSTEM;
if (op->u.passthru.bit_mod != CCP_PASSTHRU_BITWISE_NOOP)
CCP5_CMD_LSB_ID(&desc) = op->sb_key;
} else {
u32 key_addr = op->src.u.sb * CCP_SB_BYTES;
CCP5_CMD_SRC_LO(&desc) = lower_32_bits(key_addr);
CCP5_CMD_SRC_HI(&desc) = 0;
CCP5_CMD_SRC_MEM(&desc) = CCP_MEMTYPE_SB;
}
if (op->dst.type == CCP_MEMTYPE_SYSTEM) {
CCP5_CMD_DST_LO(&desc) = ccp_addr_lo(&op->dst.u.dma);
CCP5_CMD_DST_HI(&desc) = ccp_addr_hi(&op->dst.u.dma);
CCP5_CMD_DST_MEM(&desc) = CCP_MEMTYPE_SYSTEM;
} else {
u32 key_addr = op->dst.u.sb * CCP_SB_BYTES;
CCP5_CMD_DST_LO(&desc) = lower_32_bits(key_addr);
CCP5_CMD_DST_HI(&desc) = 0;
CCP5_CMD_DST_MEM(&desc) = CCP_MEMTYPE_SB;
}
return ccp5_do_cmd(&desc, op->cmd_q);
}
static int ccp_perform_sha(struct ccp_op *op)
{
u32 cr[6];
/* Fill out the register contents for REQ1 through REQ6 */
cr[0] = (CCP_ENGINE_SHA << REQ1_ENGINE_SHIFT)
| (op->u.sha.type << REQ1_SHA_TYPE_SHIFT)
| REQ1_INIT;
cr[1] = op->src.u.dma.length - 1;
cr[2] = ccp_addr_lo(&op->src.u.dma);
cr[3] = (op->sb_ctx << REQ4_KSB_SHIFT)
| (CCP_MEMTYPE_SYSTEM << REQ4_MEMTYPE_SHIFT)
| ccp_addr_hi(&op->src.u.dma);
if (op->eom) {
cr[0] |= REQ1_EOM;
cr[4] = lower_32_bits(op->u.sha.msg_bits);
cr[5] = upper_32_bits(op->u.sha.msg_bits);
} else {
cr[4] = 0;
cr[5] = 0;
}
return ccp_do_cmd(op, cr, ARRAY_SIZE(cr));
}
static int ccp5_perform_aes(struct ccp_op *op)
{
struct ccp5_desc desc;
union ccp_function function;
u32 key_addr = op->sb_key * LSB_ITEM_SIZE;
op->cmd_q->total_aes_ops++;
/* Zero out all the fields of the command desc */
memset(&desc, 0, Q_DESC_SIZE);
CCP5_CMD_ENGINE(&desc) = CCP_ENGINE_AES;
CCP5_CMD_SOC(&desc) = op->soc;
CCP5_CMD_IOC(&desc) = 1;
CCP5_CMD_INIT(&desc) = op->init;
CCP5_CMD_EOM(&desc) = op->eom;
CCP5_CMD_PROT(&desc) = 0;
function.raw = 0;
CCP_AES_ENCRYPT(&function) = op->u.aes.action;
CCP_AES_MODE(&function) = op->u.aes.mode;
CCP_AES_TYPE(&function) = op->u.aes.type;
CCP_AES_SIZE(&function) = op->u.aes.size;
CCP5_CMD_FUNCTION(&desc) = function.raw;
CCP5_CMD_LEN(&desc) = op->src.u.dma.length;
CCP5_CMD_SRC_LO(&desc) = ccp_addr_lo(&op->src.u.dma);
CCP5_CMD_SRC_HI(&desc) = ccp_addr_hi(&op->src.u.dma);
CCP5_CMD_SRC_MEM(&desc) = CCP_MEMTYPE_SYSTEM;
CCP5_CMD_DST_LO(&desc) = ccp_addr_lo(&op->dst.u.dma);
CCP5_CMD_DST_HI(&desc) = ccp_addr_hi(&op->dst.u.dma);
CCP5_CMD_DST_MEM(&desc) = CCP_MEMTYPE_SYSTEM;
CCP5_CMD_KEY_LO(&desc) = lower_32_bits(key_addr);
CCP5_CMD_KEY_HI(&desc) = 0;
CCP5_CMD_KEY_MEM(&desc) = CCP_MEMTYPE_SB;
CCP5_CMD_LSB_ID(&desc) = op->sb_ctx;
return ccp5_do_cmd(&desc, op->cmd_q);
}
static int ccp_perform_ecc(struct ccp_op *op)
{
u32 cr[6];
/* Fill out the register contents for REQ1 through REQ6 */
cr[0] = REQ1_ECC_AFFINE_CONVERT
| (CCP_ENGINE_ECC << REQ1_ENGINE_SHIFT)
| (op->u.ecc.function << REQ1_ECC_FUNCTION_SHIFT)
| REQ1_EOM;
cr[1] = op->src.u.dma.length - 1;
cr[2] = ccp_addr_lo(&op->src.u.dma);
cr[3] = (CCP_MEMTYPE_SYSTEM << REQ4_MEMTYPE_SHIFT)
| ccp_addr_hi(&op->src.u.dma);
cr[4] = ccp_addr_lo(&op->dst.u.dma);
cr[5] = (CCP_MEMTYPE_SYSTEM << REQ6_MEMTYPE_SHIFT)
| ccp_addr_hi(&op->dst.u.dma);
return ccp_do_cmd(op, cr, ARRAY_SIZE(cr));
}
static int ccp_perform_rsa(struct ccp_op *op)
{
u32 cr[6];
/* Fill out the register contents for REQ1 through REQ6 */
cr[0] = (CCP_ENGINE_RSA << REQ1_ENGINE_SHIFT)
| (op->u.rsa.mod_size << REQ1_RSA_MOD_SIZE_SHIFT)
| (op->sb_key << REQ1_KEY_KSB_SHIFT)
| REQ1_EOM;
cr[1] = op->u.rsa.input_len - 1;
cr[2] = ccp_addr_lo(&op->src.u.dma);
cr[3] = (op->sb_ctx << REQ4_KSB_SHIFT)
| (CCP_MEMTYPE_SYSTEM << REQ4_MEMTYPE_SHIFT)
| ccp_addr_hi(&op->src.u.dma);
cr[4] = ccp_addr_lo(&op->dst.u.dma);
cr[5] = (CCP_MEMTYPE_SYSTEM << REQ6_MEMTYPE_SHIFT)
| ccp_addr_hi(&op->dst.u.dma);
return ccp_do_cmd(op, cr, ARRAY_SIZE(cr));
}
static int ccp5_perform_rsa(struct ccp_op *op)
{
struct ccp5_desc desc;
union ccp_function function;
op->cmd_q->total_rsa_ops++;
/* Zero out all the fields of the command desc */
memset(&desc, 0, Q_DESC_SIZE);
CCP5_CMD_ENGINE(&desc) = CCP_ENGINE_RSA;
CCP5_CMD_SOC(&desc) = op->soc;
CCP5_CMD_IOC(&desc) = 1;
CCP5_CMD_INIT(&desc) = 0;
CCP5_CMD_EOM(&desc) = 1;
CCP5_CMD_PROT(&desc) = 0;
function.raw = 0;
CCP_RSA_SIZE(&function) = (op->u.rsa.mod_size + 7) >> 3;
CCP5_CMD_FUNCTION(&desc) = function.raw;
CCP5_CMD_LEN(&desc) = op->u.rsa.input_len;
/* Source is from external memory */
CCP5_CMD_SRC_LO(&desc) = ccp_addr_lo(&op->src.u.dma);
CCP5_CMD_SRC_HI(&desc) = ccp_addr_hi(&op->src.u.dma);
CCP5_CMD_SRC_MEM(&desc) = CCP_MEMTYPE_SYSTEM;
/* Destination is in external memory */
CCP5_CMD_DST_LO(&desc) = ccp_addr_lo(&op->dst.u.dma);
CCP5_CMD_DST_HI(&desc) = ccp_addr_hi(&op->dst.u.dma);
CCP5_CMD_DST_MEM(&desc) = CCP_MEMTYPE_SYSTEM;
/* Key (Exponent) is in external memory */
CCP5_CMD_KEY_LO(&desc) = ccp_addr_lo(&op->exp.u.dma);
CCP5_CMD_KEY_HI(&desc) = ccp_addr_hi(&op->exp.u.dma);
CCP5_CMD_KEY_MEM(&desc) = CCP_MEMTYPE_SYSTEM;
return ccp5_do_cmd(&desc, op->cmd_q);
}
static int ccp_perform_passthru(struct ccp_op *op)
{
u32 cr[6];
/* Fill out the register contents for REQ1 through REQ6 */
cr[0] = (CCP_ENGINE_PASSTHRU << REQ1_ENGINE_SHIFT)
| (op->u.passthru.bit_mod << REQ1_PT_BW_SHIFT)
| (op->u.passthru.byte_swap << REQ1_PT_BS_SHIFT);
if (op->src.type == CCP_MEMTYPE_SYSTEM)
cr[1] = op->src.u.dma.length - 1;
else
cr[1] = op->dst.u.dma.length - 1;
if (op->src.type == CCP_MEMTYPE_SYSTEM) {
cr[2] = ccp_addr_lo(&op->src.u.dma);
cr[3] = (CCP_MEMTYPE_SYSTEM << REQ4_MEMTYPE_SHIFT)
| ccp_addr_hi(&op->src.u.dma);
if (op->u.passthru.bit_mod != CCP_PASSTHRU_BITWISE_NOOP)
cr[3] |= (op->sb_key << REQ4_KSB_SHIFT);
} else {
cr[2] = op->src.u.sb * CCP_SB_BYTES;
cr[3] = (CCP_MEMTYPE_SB << REQ4_MEMTYPE_SHIFT);
}
if (op->dst.type == CCP_MEMTYPE_SYSTEM) {
cr[4] = ccp_addr_lo(&op->dst.u.dma);
cr[5] = (CCP_MEMTYPE_SYSTEM << REQ6_MEMTYPE_SHIFT)
| ccp_addr_hi(&op->dst.u.dma);
} else {
cr[4] = op->dst.u.sb * CCP_SB_BYTES;
cr[5] = (CCP_MEMTYPE_SB << REQ6_MEMTYPE_SHIFT);
}
if (op->eom)
cr[0] |= REQ1_EOM;
return ccp_do_cmd(op, cr, ARRAY_SIZE(cr));
}
static int ccp5_perform_sha(struct ccp_op *op)
{
struct ccp5_desc desc;
union ccp_function function;
op->cmd_q->total_sha_ops++;
/* Zero out all the fields of the command desc */
memset(&desc, 0, Q_DESC_SIZE);
CCP5_CMD_ENGINE(&desc) = CCP_ENGINE_SHA;
CCP5_CMD_SOC(&desc) = op->soc;
CCP5_CMD_IOC(&desc) = 1;
CCP5_CMD_INIT(&desc) = 1;
CCP5_CMD_EOM(&desc) = op->eom;
CCP5_CMD_PROT(&desc) = 0;
function.raw = 0;
CCP_SHA_TYPE(&function) = op->u.sha.type;
CCP5_CMD_FUNCTION(&desc) = function.raw;
CCP5_CMD_LEN(&desc) = op->src.u.dma.length;
CCP5_CMD_SRC_LO(&desc) = ccp_addr_lo(&op->src.u.dma);
CCP5_CMD_SRC_HI(&desc) = ccp_addr_hi(&op->src.u.dma);
CCP5_CMD_SRC_MEM(&desc) = CCP_MEMTYPE_SYSTEM;
CCP5_CMD_LSB_ID(&desc) = op->sb_ctx;
if (op->eom) {
CCP5_CMD_SHA_LO(&desc) = lower_32_bits(op->u.sha.msg_bits);
CCP5_CMD_SHA_HI(&desc) = upper_32_bits(op->u.sha.msg_bits);
} else {
CCP5_CMD_SHA_LO(&desc) = 0;
CCP5_CMD_SHA_HI(&desc) = 0;
}
return ccp5_do_cmd(&desc, op->cmd_q);
}
