[deliverable/linux.git] / drivers / crypto / caam / desc_constr.h

/*
 * caam descriptor construction helper functions
 *
 * Copyright 2008-2012 Freescale Semiconductor, Inc.
 */

#include "desc.h"
#include "regs.h"

#define IMMEDIATE (1 << 23)
#define CAAM_CMD_SZ sizeof(u32)
#define CAAM_PTR_SZ sizeof(dma_addr_t)
#define CAAM_DESC_BYTES_MAX (CAAM_CMD_SZ * MAX_CAAM_DESCSIZE)
#define DESC_JOB_IO_LEN (CAAM_CMD_SZ * 5 + CAAM_PTR_SZ * 3)

#ifdef DEBUG
#define PRINT_POS do { printk(KERN_DEBUG "%02d: %s\n", desc_len(desc),\
			      &__func__[sizeof("append")]); } while (0)
#else
#define PRINT_POS
#endif

#define SET_OK_NO_PROP_ERRORS (IMMEDIATE | LDST_CLASS_DECO | \
			       LDST_SRCDST_WORD_DECOCTRL | \
			       (LDOFF_CHG_SHARE_OK_NO_PROP << \
				LDST_OFFSET_SHIFT))
#define DISABLE_AUTO_INFO_FIFO (IMMEDIATE | LDST_CLASS_DECO | \
				LDST_SRCDST_WORD_DECOCTRL | \
				(LDOFF_DISABLE_AUTO_NFIFO << LDST_OFFSET_SHIFT))
#define ENABLE_AUTO_INFO_FIFO (IMMEDIATE | LDST_CLASS_DECO | \
			       LDST_SRCDST_WORD_DECOCTRL | \
			       (LDOFF_ENABLE_AUTO_NFIFO << LDST_OFFSET_SHIFT))

extern bool caam_little_end;

static inline int desc_len(u32 *desc)
{
	return caam32_to_cpu(*desc) & HDR_DESCLEN_MASK;
}

static inline int desc_bytes(void *desc)
{
	return desc_len(desc) * CAAM_CMD_SZ;
}

static inline u32 *desc_end(u32 *desc)
{
	return desc + desc_len(desc);
}

static inline void *sh_desc_pdb(u32 *desc)
{
	return desc + 1;
}

static inline void init_desc(u32 *desc, u32 options)
{
	*desc = cpu_to_caam32((options | HDR_ONE) + 1);
}

static inline void init_sh_desc(u32 *desc, u32 options)
{
	PRINT_POS;
	init_desc(desc, CMD_SHARED_DESC_HDR | options);
}

static inline void init_sh_desc_pdb(u32 *desc, u32 options, size_t pdb_bytes)
{
	u32 pdb_len = (pdb_bytes + CAAM_CMD_SZ - 1) / CAAM_CMD_SZ;

	init_sh_desc(desc, (((pdb_len + 1) << HDR_START_IDX_SHIFT) + pdb_len) |
		     options);
}

static inline void init_job_desc(u32 *desc, u32 options)
{
	init_desc(desc, CMD_DESC_HDR | options);
}

static inline void init_job_desc_pdb(u32 *desc, u32 options, size_t pdb_bytes)
{
	u32 pdb_len = (pdb_bytes + CAAM_CMD_SZ - 1) / CAAM_CMD_SZ;

	init_job_desc(desc, (((pdb_len + 1) << HDR_START_IDX_SHIFT)) | options);
}

static inline void append_ptr(u32 *desc, dma_addr_t ptr)
{
	dma_addr_t *offset = (dma_addr_t *)desc_end(desc);

	*offset = cpu_to_caam_dma(ptr);

	(*desc) = cpu_to_caam32(caam32_to_cpu(*desc) +
				CAAM_PTR_SZ / CAAM_CMD_SZ);
}

static inline void init_job_desc_shared(u32 *desc, dma_addr_t ptr, int len,
					u32 options)
{
	PRINT_POS;
	init_job_desc(desc, HDR_SHARED | options |
		      (len << HDR_START_IDX_SHIFT));
	append_ptr(desc, ptr);
}

static inline void append_data(u32 *desc, void *data, int len)
{
	u32 *offset = desc_end(desc);

	if (len) /* avoid sparse warning: memcpy with byte count of 0 */
		memcpy(offset, data, len);

	(*desc) = cpu_to_caam32(caam32_to_cpu(*desc) +
				(len + CAAM_CMD_SZ - 1) / CAAM_CMD_SZ);
}

static inline void append_cmd(u32 *desc, u32 command)
{
	u32 *cmd = desc_end(desc);

	*cmd = cpu_to_caam32(command);

	(*desc) = cpu_to_caam32(caam32_to_cpu(*desc) + 1);
}

#define append_u32 append_cmd

static inline void append_u64(u32 *desc, u64 data)
{
	u32 *offset = desc_end(desc);

	/* Only 32-bit alignment is guaranteed in descriptor buffer */
	if (caam_little_end) {
		*offset = cpu_to_caam32(lower_32_bits(data));
		*(++offset) = cpu_to_caam32(upper_32_bits(data));
	} else {
		*offset = cpu_to_caam32(upper_32_bits(data));
		*(++offset) = cpu_to_caam32(lower_32_bits(data));
	}

	(*desc) = cpu_to_caam32(caam32_to_cpu(*desc) + 2);
}

/* Write command without affecting header, and return pointer to next word */
static inline u32 *write_cmd(u32 *desc, u32 command)
{
	*desc = cpu_to_caam32(command);

	return desc + 1;
}

static inline void append_cmd_ptr(u32 *desc, dma_addr_t ptr, int len,
				  u32 command)
{
	append_cmd(desc, command | len);
	append_ptr(desc, ptr);
}

/* Write length after pointer, rather than inside command */
static inline void append_cmd_ptr_extlen(u32 *desc, dma_addr_t ptr,
					 unsigned int len, u32 command)
{
	append_cmd(desc, command);
	if (!(command & (SQIN_RTO | SQIN_PRE)))
		append_ptr(desc, ptr);
	append_cmd(desc, len);
}

static inline void append_cmd_data(u32 *desc, void *data, int len,
				   u32 command)
{
	append_cmd(desc, command | IMMEDIATE | len);
	append_data(desc, data, len);
}

#define APPEND_CMD_RET(cmd, op) \
static inline u32 *append_##cmd(u32 *desc, u32 options) \
{ \
	u32 *cmd = desc_end(desc); \
	PRINT_POS; \
	append_cmd(desc, CMD_##op | options); \
	return cmd; \
}
APPEND_CMD_RET(jump, JUMP)
APPEND_CMD_RET(move, MOVE)

static inline void set_jump_tgt_here(u32 *desc, u32 *jump_cmd)
{
	*jump_cmd = cpu_to_caam32(caam32_to_cpu(*jump_cmd) |
				  (desc_len(desc) - (jump_cmd - desc)));
}

static inline void set_move_tgt_here(u32 *desc, u32 *move_cmd)
{
	u32 val = caam32_to_cpu(*move_cmd);

	val &= ~MOVE_OFFSET_MASK;
	val |= (desc_len(desc) << (MOVE_OFFSET_SHIFT + 2)) & MOVE_OFFSET_MASK;
	*move_cmd = cpu_to_caam32(val);
}

#define APPEND_CMD(cmd, op) \
static inline void append_##cmd(u32 *desc, u32 options) \
{ \
	PRINT_POS; \
	append_cmd(desc, CMD_##op | options); \
}
APPEND_CMD(operation, OPERATION)

#define APPEND_CMD_LEN(cmd, op) \
static inline void append_##cmd(u32 *desc, unsigned int len, u32 options) \
{ \
	PRINT_POS; \
	append_cmd(desc, CMD_##op | len | options); \
}

APPEND_CMD_LEN(seq_load, SEQ_LOAD)
APPEND_CMD_LEN(seq_store, SEQ_STORE)
APPEND_CMD_LEN(seq_fifo_load, SEQ_FIFO_LOAD)
APPEND_CMD_LEN(seq_fifo_store, SEQ_FIFO_STORE)

#define APPEND_CMD_PTR(cmd, op) \
static inline void append_##cmd(u32 *desc, dma_addr_t ptr, unsigned int len, \
				u32 options) \
{ \
	PRINT_POS; \
	append_cmd_ptr(desc, ptr, len, CMD_##op | options); \
}
APPEND_CMD_PTR(key, KEY)
APPEND_CMD_PTR(load, LOAD)
APPEND_CMD_PTR(fifo_load, FIFO_LOAD)
APPEND_CMD_PTR(fifo_store, FIFO_STORE)

static inline void append_store(u32 *desc, dma_addr_t ptr, unsigned int len,
				u32 options)
{
	u32 cmd_src;

	cmd_src = options & LDST_SRCDST_MASK;

	append_cmd(desc, CMD_STORE | options | len);

	/* The following options do not require pointer */
	if (!(cmd_src == LDST_SRCDST_WORD_DESCBUF_SHARED ||
	      cmd_src == LDST_SRCDST_WORD_DESCBUF_JOB    ||
	      cmd_src == LDST_SRCDST_WORD_DESCBUF_JOB_WE ||
	      cmd_src == LDST_SRCDST_WORD_DESCBUF_SHARED_WE))
		append_ptr(desc, ptr);
}

#define APPEND_SEQ_PTR_INTLEN(cmd, op) \
static inline void append_seq_##cmd##_ptr_intlen(u32 *desc, dma_addr_t ptr, \
						 unsigned int len, \
						 u32 options) \
{ \
	PRINT_POS; \
	if (options & (SQIN_RTO | SQIN_PRE)) \
		append_cmd(desc, CMD_SEQ_##op##_PTR | len | options); \
	else \
		append_cmd_ptr(desc, ptr, len, CMD_SEQ_##op##_PTR | options); \
}
APPEND_SEQ_PTR_INTLEN(in, IN)
APPEND_SEQ_PTR_INTLEN(out, OUT)

#define APPEND_CMD_PTR_TO_IMM(cmd, op) \
static inline void append_##cmd##_as_imm(u32 *desc, void *data, \
					 unsigned int len, u32 options) \
{ \
	PRINT_POS; \
	append_cmd_data(desc, data, len, CMD_##op | options); \
}
APPEND_CMD_PTR_TO_IMM(load, LOAD);
APPEND_CMD_PTR_TO_IMM(fifo_load, FIFO_LOAD);

#define APPEND_CMD_PTR_EXTLEN(cmd, op) \
static inline void append_##cmd##_extlen(u32 *desc, dma_addr_t ptr, \
					 unsigned int len, u32 options) \
{ \
	PRINT_POS; \
	append_cmd_ptr_extlen(desc, ptr, len, CMD_##op | SQIN_EXT | options); \
}
APPEND_CMD_PTR_EXTLEN(seq_in_ptr, SEQ_IN_PTR)
APPEND_CMD_PTR_EXTLEN(seq_out_ptr, SEQ_OUT_PTR)

/*
 * Determine whether to store length internally or externally depending on
 * the size of its type
 */
#define APPEND_CMD_PTR_LEN(cmd, op, type) \
static inline void append_##cmd(u32 *desc, dma_addr_t ptr, \
				type len, u32 options) \
{ \
	PRINT_POS; \
	if (sizeof(type) > sizeof(u16)) \
		append_##cmd##_extlen(desc, ptr, len, options); \
	else \
		append_##cmd##_intlen(desc, ptr, len, options); \
}
APPEND_CMD_PTR_LEN(seq_in_ptr, SEQ_IN_PTR, u32)
APPEND_CMD_PTR_LEN(seq_out_ptr, SEQ_OUT_PTR, u32)

/*
 * 2nd variant for commands whose specified immediate length differs
 * from length of immediate data provided, e.g., split keys
 */
#define APPEND_CMD_PTR_TO_IMM2(cmd, op) \
static inline void append_##cmd##_as_imm(u32 *desc, void *data, \
					 unsigned int data_len, \
					 unsigned int len, u32 options) \
{ \
	PRINT_POS; \
	append_cmd(desc, CMD_##op | IMMEDIATE | len | options); \
	append_data(desc, data, data_len); \
}
APPEND_CMD_PTR_TO_IMM2(key, KEY);

#define APPEND_CMD_RAW_IMM(cmd, op, type) \
static inline void append_##cmd##_imm_##type(u32 *desc, type immediate, \
					     u32 options) \
{ \
	PRINT_POS; \
	append_cmd(desc, CMD_##op | IMMEDIATE | options | sizeof(type)); \
	append_cmd(desc, immediate); \
}
APPEND_CMD_RAW_IMM(load, LOAD, u32);

/*
 * ee - endianness
 * size - size of immediate type in bytes
 */
#define APPEND_CMD_RAW_IMM2(cmd, op, ee, size) \
static inline void append_##cmd##_imm_##ee##size(u32 *desc, \
						   u##size immediate, \
						   u32 options) \
{ \
	__##ee##size data = cpu_to_##ee##size(immediate); \
	PRINT_POS; \
	append_cmd(desc, CMD_##op | IMMEDIATE | options | sizeof(data)); \
	append_data(desc, &data, sizeof(data)); \
}

APPEND_CMD_RAW_IMM2(load, LOAD, be, 32);

/*
 * Append math command. Only the last part of destination and source need to
 * be specified
 */
#define APPEND_MATH(op, desc, dest, src_0, src_1, len) \
append_cmd(desc, CMD_MATH | MATH_FUN_##op | MATH_DEST_##dest | \
	MATH_SRC0_##src_0 | MATH_SRC1_##src_1 | (u32)len);

#define append_math_add(desc, dest, src0, src1, len) \
	APPEND_MATH(ADD, desc, dest, src0, src1, len)
#define append_math_sub(desc, dest, src0, src1, len) \
	APPEND_MATH(SUB, desc, dest, src0, src1, len)
#define append_math_add_c(desc, dest, src0, src1, len) \
	APPEND_MATH(ADDC, desc, dest, src0, src1, len)
#define append_math_sub_b(desc, dest, src0, src1, len) \
	APPEND_MATH(SUBB, desc, dest, src0, src1, len)
#define append_math_and(desc, dest, src0, src1, len) \
	APPEND_MATH(AND, desc, dest, src0, src1, len)
#define append_math_or(desc, dest, src0, src1, len) \
	APPEND_MATH(OR, desc, dest, src0, src1, len)
#define append_math_xor(desc, dest, src0, src1, len) \
	APPEND_MATH(XOR, desc, dest, src0, src1, len)
#define append_math_lshift(desc, dest, src0, src1, len) \
	APPEND_MATH(LSHIFT, desc, dest, src0, src1, len)
#define append_math_rshift(desc, dest, src0, src1, len) \
	APPEND_MATH(RSHIFT, desc, dest, src0, src1, len)
#define append_math_ldshift(desc, dest, src0, src1, len) \
	APPEND_MATH(SHLD, desc, dest, src0, src1, len)

/* Exactly one source is IMM. Data is passed in as u32 value */
#define APPEND_MATH_IMM_u32(op, desc, dest, src_0, src_1, data) \
do { \
	APPEND_MATH(op, desc, dest, src_0, src_1, CAAM_CMD_SZ); \
	append_cmd(desc, data); \
} while (0)

#define append_math_add_imm_u32(desc, dest, src0, src1, data) \
	APPEND_MATH_IMM_u32(ADD, desc, dest, src0, src1, data)
#define append_math_sub_imm_u32(desc, dest, src0, src1, data) \
	APPEND_MATH_IMM_u32(SUB, desc, dest, src0, src1, data)
#define append_math_add_c_imm_u32(desc, dest, src0, src1, data) \
	APPEND_MATH_IMM_u32(ADDC, desc, dest, src0, src1, data)
#define append_math_sub_b_imm_u32(desc, dest, src0, src1, data) \
	APPEND_MATH_IMM_u32(SUBB, desc, dest, src0, src1, data)
#define append_math_and_imm_u32(desc, dest, src0, src1, data) \
	APPEND_MATH_IMM_u32(AND, desc, dest, src0, src1, data)
#define append_math_or_imm_u32(desc, dest, src0, src1, data) \
	APPEND_MATH_IMM_u32(OR, desc, dest, src0, src1, data)
#define append_math_xor_imm_u32(desc, dest, src0, src1, data) \
	APPEND_MATH_IMM_u32(XOR, desc, dest, src0, src1, data)
#define append_math_lshift_imm_u32(desc, dest, src0, src1, data) \
	APPEND_MATH_IMM_u32(LSHIFT, desc, dest, src0, src1, data)
#define append_math_rshift_imm_u32(desc, dest, src0, src1, data) \
	APPEND_MATH_IMM_u32(RSHIFT, desc, dest, src0, src1, data)

/* Exactly one source is IMM. Data is passed in as u64 value */
#define APPEND_MATH_IMM_u64(op, desc, dest, src_0, src_1, data) \
do { \
	u32 upper = (data >> 16) >> 16; \
	APPEND_MATH(op, desc, dest, src_0, src_1, CAAM_CMD_SZ * 2 | \
		    (upper ? 0 : MATH_IFB)); \
	if (upper) \
		append_u64(desc, data); \
	else \
		append_u32(desc, lower_32_bits(data)); \
} while (0)

#define append_math_add_imm_u64(desc, dest, src0, src1, data) \
	APPEND_MATH_IMM_u64(ADD, desc, dest, src0, src1, data)
#define append_math_sub_imm_u64(desc, dest, src0, src1, data) \
	APPEND_MATH_IMM_u64(SUB, desc, dest, src0, src1, data)
#define append_math_add_c_imm_u64(desc, dest, src0, src1, data) \
	APPEND_MATH_IMM_u64(ADDC, desc, dest, src0, src1, data)
#define append_math_sub_b_imm_u64(desc, dest, src0, src1, data) \
	APPEND_MATH_IMM_u64(SUBB, desc, dest, src0, src1, data)
#define append_math_and_imm_u64(desc, dest, src0, src1, data) \
	APPEND_MATH_IMM_u64(AND, desc, dest, src0, src1, data)
#define append_math_or_imm_u64(desc, dest, src0, src1, data) \
	APPEND_MATH_IMM_u64(OR, desc, dest, src0, src1, data)
#define append_math_xor_imm_u64(desc, dest, src0, src1, data) \
	APPEND_MATH_IMM_u64(XOR, desc, dest, src0, src1, data)
#define append_math_lshift_imm_u64(desc, dest, src0, src1, data) \
	APPEND_MATH_IMM_u64(LSHIFT, desc, dest, src0, src1, data)
#define append_math_rshift_imm_u64(desc, dest, src0, src1, data) \
	APPEND_MATH_IMM_u64(RSHIFT, desc, dest, src0, src1, data)
Commit	Line	Data
8e8ec596 KP	1	/*
	2	* caam descriptor construction helper functions
	3	*
c4b66406	4	* Copyright 2008-2012 Freescale Semiconductor, Inc.
8e8ec596 KP	5	*/
	6
	7	#include "desc.h"
261ea058	8	#include "regs.h"
8e8ec596 KP	9
	10	#define IMMEDIATE (1 << 23)
	11	#define CAAM_CMD_SZ sizeof(u32)
	12	#define CAAM_PTR_SZ sizeof(dma_addr_t)
1acebad3	13	#define CAAM_DESC_BYTES_MAX (CAAM_CMD_SZ * MAX_CAAM_DESCSIZE)
aa2faec1	14	#define DESC_JOB_IO_LEN (CAAM_CMD_SZ * 5 + CAAM_PTR_SZ * 3)
8e8ec596 KP	15
	16	#ifdef DEBUG
	17	#define PRINT_POS do { printk(KERN_DEBUG "%02d: %s\n", desc_len(desc),\
	18	&__func__[sizeof("append")]); } while (0)
	19	#else
	20	#define PRINT_POS
	21	#endif
	22
a2ecb155 KP	23	#define SET_OK_NO_PROP_ERRORS (IMMEDIATE \| LDST_CLASS_DECO \| \
	24	LDST_SRCDST_WORD_DECOCTRL \| \
	25	(LDOFF_CHG_SHARE_OK_NO_PROP << \
	26	LDST_OFFSET_SHIFT))
8e8ec596 KP	27	#define DISABLE_AUTO_INFO_FIFO (IMMEDIATE \| LDST_CLASS_DECO \| \
	28	LDST_SRCDST_WORD_DECOCTRL \| \
	29	(LDOFF_DISABLE_AUTO_NFIFO << LDST_OFFSET_SHIFT))
	30	#define ENABLE_AUTO_INFO_FIFO (IMMEDIATE \| LDST_CLASS_DECO \| \
	31	LDST_SRCDST_WORD_DECOCTRL \| \
	32	(LDOFF_ENABLE_AUTO_NFIFO << LDST_OFFSET_SHIFT))
	33
261ea058 HG	34	extern bool caam_little_end;
261ea058 HG	35
8e8ec596 KP	36	static inline int desc_len(u32 *desc)
8e8ec596 KP	37	{
261ea058	38	return caam32_to_cpu(*desc) & HDR_DESCLEN_MASK;
8e8ec596 KP	39	}
	40
	41	static inline int desc_bytes(void *desc)
	42	{
	43	return desc_len(desc) * CAAM_CMD_SZ;
	44	}
	45
	46	static inline u32 desc_end(u32 desc)
	47	{
	48	return desc + desc_len(desc);
	49	}
	50
	51	static inline void sh_desc_pdb(u32 desc)
	52	{
	53	return desc + 1;
	54	}
	55
	56	static inline void init_desc(u32 *desc, u32 options)
	57	{
261ea058	58	*desc = cpu_to_caam32((options \| HDR_ONE) + 1);
8e8ec596 KP	59	}
	60
	61	static inline void init_sh_desc(u32 *desc, u32 options)
	62	{
	63	PRINT_POS;
	64	init_desc(desc, CMD_SHARED_DESC_HDR \| options);
	65	}
	66
	67	static inline void init_sh_desc_pdb(u32 *desc, u32 options, size_t pdb_bytes)
	68	{
991c569c	69	u32 pdb_len = (pdb_bytes + CAAM_CMD_SZ - 1) / CAAM_CMD_SZ;
8e8ec596	70
c4b66406	71	init_sh_desc(desc, (((pdb_len + 1) << HDR_START_IDX_SHIFT) + pdb_len) \|
8e8ec596 KP	72	options);
	73	}
	74
	75	static inline void init_job_desc(u32 *desc, u32 options)
	76	{
	77	init_desc(desc, CMD_DESC_HDR \| options);
	78	}
	79
8c419778 TA	80	static inline void init_job_desc_pdb(u32 *desc, u32 options, size_t pdb_bytes)
	81	{
	82	u32 pdb_len = (pdb_bytes + CAAM_CMD_SZ - 1) / CAAM_CMD_SZ;
	83
	84	init_job_desc(desc, (((pdb_len + 1) << HDR_START_IDX_SHIFT)) \| options);
	85	}
	86
8e8ec596 KP	87	static inline void append_ptr(u32 *desc, dma_addr_t ptr)
	88	{
	89	dma_addr_t offset = (dma_addr_t )desc_end(desc);
	90
261ea058	91	*offset = cpu_to_caam_dma(ptr);
8e8ec596	92
261ea058 HG	93	(desc) = cpu_to_caam32(caam32_to_cpu(desc) +
261ea058 HG	94	CAAM_PTR_SZ / CAAM_CMD_SZ);
8e8ec596 KP	95	}
	96
	97	static inline void init_job_desc_shared(u32 *desc, dma_addr_t ptr, int len,
	98	u32 options)
	99	{
	100	PRINT_POS;
	101	init_job_desc(desc, HDR_SHARED \| options \|
	102	(len << HDR_START_IDX_SHIFT));
	103	append_ptr(desc, ptr);
	104	}
	105
	106	static inline void append_data(u32 desc, void data, int len)
	107	{
	108	u32 *offset = desc_end(desc);
	109
	110	if (len) /* avoid sparse warning: memcpy with byte count of 0 */
	111	memcpy(offset, data, len);
	112
261ea058 HG	113	(desc) = cpu_to_caam32(caam32_to_cpu(desc) +
261ea058 HG	114	(len + CAAM_CMD_SZ - 1) / CAAM_CMD_SZ);
8e8ec596 KP	115	}
	116
	117	static inline void append_cmd(u32 *desc, u32 command)
	118	{
	119	u32 *cmd = desc_end(desc);
	120
261ea058	121	*cmd = cpu_to_caam32(command);
8e8ec596	122
261ea058	123	(desc) = cpu_to_caam32(caam32_to_cpu(desc) + 1);
8e8ec596 KP	124	}
8e8ec596 KP	125
3ebfa92f AV	126	#define append_u32 append_cmd
	127
	128	static inline void append_u64(u32 *desc, u64 data)
	129	{
	130	u32 *offset = desc_end(desc);
	131
261ea058 HG	132	/* Only 32-bit alignment is guaranteed in descriptor buffer */
	133	if (caam_little_end) {
	134	*offset = cpu_to_caam32(lower_32_bits(data));
	135	*(++offset) = cpu_to_caam32(upper_32_bits(data));
	136	} else {
	137	*offset = cpu_to_caam32(upper_32_bits(data));
	138	*(++offset) = cpu_to_caam32(lower_32_bits(data));
	139	}
3ebfa92f	140
261ea058	141	(desc) = cpu_to_caam32(caam32_to_cpu(desc) + 2);
3ebfa92f AV	142	}
	143
	144	/* Write command without affecting header, and return pointer to next word */
	145	static inline u32 write_cmd(u32 desc, u32 command)
	146	{
261ea058	147	*desc = cpu_to_caam32(command);
3ebfa92f AV	148
	149	return desc + 1;
	150	}
	151
8e8ec596 KP	152	static inline void append_cmd_ptr(u32 *desc, dma_addr_t ptr, int len,
	153	u32 command)
	154	{
	155	append_cmd(desc, command \| len);
	156	append_ptr(desc, ptr);
	157	}
	158
6ec47334 YK	159	/* Write length after pointer, rather than inside command */
	160	static inline void append_cmd_ptr_extlen(u32 *desc, dma_addr_t ptr,
	161	unsigned int len, u32 command)
	162	{
	163	append_cmd(desc, command);
e2d4ea94 AV	164	if (!(command & (SQIN_RTO \| SQIN_PRE)))
e2d4ea94 AV	165	append_ptr(desc, ptr);
6ec47334 YK	166	append_cmd(desc, len);
	167	}
	168
8e8ec596 KP	169	static inline void append_cmd_data(u32 desc, void data, int len,
	170	u32 command)
	171	{
	172	append_cmd(desc, command \| IMMEDIATE \| len);
	173	append_data(desc, data, len);
	174	}
	175
ae4a825f HG	176	#define APPEND_CMD_RET(cmd, op) \
	177	static inline u32 append_##cmd(u32 desc, u32 options) \
	178	{ \
	179	u32 *cmd = desc_end(desc); \
	180	PRINT_POS; \
	181	append_cmd(desc, CMD_##op \| options); \
	182	return cmd; \
8e8ec596	183	}
ae4a825f HG	184	APPEND_CMD_RET(jump, JUMP)
ae4a825f HG	185	APPEND_CMD_RET(move, MOVE)
8e8ec596 KP	186
	187	static inline void set_jump_tgt_here(u32 desc, u32 jump_cmd)
	188	{
261ea058 HG	189	jump_cmd = cpu_to_caam32(caam32_to_cpu(jump_cmd) \|
261ea058 HG	190	(desc_len(desc) - (jump_cmd - desc)));
8e8ec596 KP	191	}
8e8ec596 KP	192
ae4a825f HG	193	static inline void set_move_tgt_here(u32 desc, u32 move_cmd)
ae4a825f HG	194	{
261ea058 HG	195	u32 val = caam32_to_cpu(*move_cmd);
	196
	197	val &= ~MOVE_OFFSET_MASK;
	198	val \|= (desc_len(desc) << (MOVE_OFFSET_SHIFT + 2)) & MOVE_OFFSET_MASK;
	199	*move_cmd = cpu_to_caam32(val);
ae4a825f HG	200	}
ae4a825f HG	201
8e8ec596 KP	202	#define APPEND_CMD(cmd, op) \
	203	static inline void append_##cmd(u32 *desc, u32 options) \
	204	{ \
	205	PRINT_POS; \
	206	append_cmd(desc, CMD_##op \| options); \
	207	}
	208	APPEND_CMD(operation, OPERATION)
8e8ec596 KP	209
	210	#define APPEND_CMD_LEN(cmd, op) \
	211	static inline void append_##cmd(u32 *desc, unsigned int len, u32 options) \
	212	{ \
	213	PRINT_POS; \
	214	append_cmd(desc, CMD_##op \| len \| options); \
	215	}
2b22f6c5 CV	216
2b22f6c5 CV	217	APPEND_CMD_LEN(seq_load, SEQ_LOAD)
8e8ec596 KP	218	APPEND_CMD_LEN(seq_store, SEQ_STORE)
	219	APPEND_CMD_LEN(seq_fifo_load, SEQ_FIFO_LOAD)
	220	APPEND_CMD_LEN(seq_fifo_store, SEQ_FIFO_STORE)
	221
	222	#define APPEND_CMD_PTR(cmd, op) \
	223	static inline void append_##cmd(u32 *desc, dma_addr_t ptr, unsigned int len, \
	224	u32 options) \
	225	{ \
	226	PRINT_POS; \
	227	append_cmd_ptr(desc, ptr, len, CMD_##op \| options); \
	228	}
	229	APPEND_CMD_PTR(key, KEY)
8e8ec596	230	APPEND_CMD_PTR(load, LOAD)
8e8ec596 KP	231	APPEND_CMD_PTR(fifo_load, FIFO_LOAD)
	232	APPEND_CMD_PTR(fifo_store, FIFO_STORE)
	233
524f1bd9 AV	234	static inline void append_store(u32 *desc, dma_addr_t ptr, unsigned int len,
	235	u32 options)
	236	{
	237	u32 cmd_src;
	238
	239	cmd_src = options & LDST_SRCDST_MASK;
	240
	241	append_cmd(desc, CMD_STORE \| options \| len);
	242
	243	/* The following options do not require pointer */
	244	if (!(cmd_src == LDST_SRCDST_WORD_DESCBUF_SHARED \|\|
	245	cmd_src == LDST_SRCDST_WORD_DESCBUF_JOB \|\|
	246	cmd_src == LDST_SRCDST_WORD_DESCBUF_JOB_WE \|\|
	247	cmd_src == LDST_SRCDST_WORD_DESCBUF_SHARED_WE))
	248	append_ptr(desc, ptr);
	249	}
	250
6ec47334 YK	251	#define APPEND_SEQ_PTR_INTLEN(cmd, op) \
	252	static inline void append_seq_##cmd##_ptr_intlen(u32 *desc, dma_addr_t ptr, \
	253	unsigned int len, \
	254	u32 options) \
	255	{ \
	256	PRINT_POS; \
e2d4ea94 AV	257	if (options & (SQIN_RTO \| SQIN_PRE)) \
	258	append_cmd(desc, CMD_SEQ_##op##_PTR \| len \| options); \
	259	else \
	260	append_cmd_ptr(desc, ptr, len, CMD_SEQ_##op##_PTR \| options); \
6ec47334 YK	261	}
	262	APPEND_SEQ_PTR_INTLEN(in, IN)
	263	APPEND_SEQ_PTR_INTLEN(out, OUT)
	264
8e8ec596 KP	265	#define APPEND_CMD_PTR_TO_IMM(cmd, op) \
	266	static inline void append_##cmd##_as_imm(u32 desc, void data, \
	267	unsigned int len, u32 options) \
	268	{ \
	269	PRINT_POS; \
	270	append_cmd_data(desc, data, len, CMD_##op \| options); \
	271	}
	272	APPEND_CMD_PTR_TO_IMM(load, LOAD);
	273	APPEND_CMD_PTR_TO_IMM(fifo_load, FIFO_LOAD);
	274
6ec47334 YK	275	#define APPEND_CMD_PTR_EXTLEN(cmd, op) \
	276	static inline void append_##cmd##_extlen(u32 *desc, dma_addr_t ptr, \
	277	unsigned int len, u32 options) \
	278	{ \
	279	PRINT_POS; \
	280	append_cmd_ptr_extlen(desc, ptr, len, CMD_##op \| SQIN_EXT \| options); \
	281	}
	282	APPEND_CMD_PTR_EXTLEN(seq_in_ptr, SEQ_IN_PTR)
	283	APPEND_CMD_PTR_EXTLEN(seq_out_ptr, SEQ_OUT_PTR)
	284
	285	/*
	286	* Determine whether to store length internally or externally depending on
	287	* the size of its type
	288	*/
	289	#define APPEND_CMD_PTR_LEN(cmd, op, type) \
	290	static inline void append_##cmd(u32 *desc, dma_addr_t ptr, \
	291	type len, u32 options) \
	292	{ \
	293	PRINT_POS; \
	294	if (sizeof(type) > sizeof(u16)) \
	295	append_##cmd##_extlen(desc, ptr, len, options); \
	296	else \
	297	append_##cmd##_intlen(desc, ptr, len, options); \
	298	}
	299	APPEND_CMD_PTR_LEN(seq_in_ptr, SEQ_IN_PTR, u32)
	300	APPEND_CMD_PTR_LEN(seq_out_ptr, SEQ_OUT_PTR, u32)
	301
8e8ec596 KP	302	/*
	303	* 2nd variant for commands whose specified immediate length differs
	304	* from length of immediate data provided, e.g., split keys
	305	*/
	306	#define APPEND_CMD_PTR_TO_IMM2(cmd, op) \
	307	static inline void append_##cmd##_as_imm(u32 desc, void data, \
	308	unsigned int data_len, \
	309	unsigned int len, u32 options) \
	310	{ \
	311	PRINT_POS; \
	312	append_cmd(desc, CMD_##op \| IMMEDIATE \| len \| options); \
	313	append_data(desc, data, data_len); \
	314	}
	315	APPEND_CMD_PTR_TO_IMM2(key, KEY);
	316
	317	#define APPEND_CMD_RAW_IMM(cmd, op, type) \
	318	static inline void append_##cmd##_imm_##type(u32 *desc, type immediate, \
	319	u32 options) \
	320	{ \
	321	PRINT_POS; \
	322	append_cmd(desc, CMD_##op \| IMMEDIATE \| options \| sizeof(type)); \
	323	append_cmd(desc, immediate); \
	324	}
	325	APPEND_CMD_RAW_IMM(load, LOAD, u32);
1acebad3	326
5ba1c7b5 CV	327	/*
	328	* ee - endianness
	329	* size - size of immediate type in bytes
	330	*/
	331	#define APPEND_CMD_RAW_IMM2(cmd, op, ee, size) \
	332	static inline void append_##cmd##_imm_##ee##size(u32 *desc, \
	333	u##size immediate, \
	334	u32 options) \
	335	{ \
	336	__##ee##size data = cpu_to_##ee##size(immediate); \
	337	PRINT_POS; \
	338	append_cmd(desc, CMD_##op \| IMMEDIATE \| options \| sizeof(data)); \
	339	append_data(desc, &data, sizeof(data)); \
	340	}
	341
	342	APPEND_CMD_RAW_IMM2(load, LOAD, be, 32);
	343
1acebad3 YK	344	/*
	345	* Append math command. Only the last part of destination and source need to
	346	* be specified
	347	*/
	348	#define APPEND_MATH(op, desc, dest, src_0, src_1, len) \
	349	append_cmd(desc, CMD_MATH \| MATH_FUN_##op \| MATH_DEST_##dest \| \
3ebfa92f	350	MATH_SRC0_##src_0 \| MATH_SRC1_##src_1 \| (u32)len);
1acebad3 YK	351
	352	#define append_math_add(desc, dest, src0, src1, len) \
	353	APPEND_MATH(ADD, desc, dest, src0, src1, len)
	354	#define append_math_sub(desc, dest, src0, src1, len) \
	355	APPEND_MATH(SUB, desc, dest, src0, src1, len)
	356	#define append_math_add_c(desc, dest, src0, src1, len) \
	357	APPEND_MATH(ADDC, desc, dest, src0, src1, len)
	358	#define append_math_sub_b(desc, dest, src0, src1, len) \
	359	APPEND_MATH(SUBB, desc, dest, src0, src1, len)
	360	#define append_math_and(desc, dest, src0, src1, len) \
	361	APPEND_MATH(AND, desc, dest, src0, src1, len)
	362	#define append_math_or(desc, dest, src0, src1, len) \
	363	APPEND_MATH(OR, desc, dest, src0, src1, len)
	364	#define append_math_xor(desc, dest, src0, src1, len) \
	365	APPEND_MATH(XOR, desc, dest, src0, src1, len)
	366	#define append_math_lshift(desc, dest, src0, src1, len) \
	367	APPEND_MATH(LSHIFT, desc, dest, src0, src1, len)
	368	#define append_math_rshift(desc, dest, src0, src1, len) \
	369	APPEND_MATH(RSHIFT, desc, dest, src0, src1, len)
d179333b AV	370	#define append_math_ldshift(desc, dest, src0, src1, len) \
d179333b AV	371	APPEND_MATH(SHLD, desc, dest, src0, src1, len)
1acebad3 YK	372
	373	/* Exactly one source is IMM. Data is passed in as u32 value */
	374	#define APPEND_MATH_IMM_u32(op, desc, dest, src_0, src_1, data) \
	375	do { \
	376	APPEND_MATH(op, desc, dest, src_0, src_1, CAAM_CMD_SZ); \
	377	append_cmd(desc, data); \
ae4a825f	378	} while (0)
1acebad3 YK	379
	380	#define append_math_add_imm_u32(desc, dest, src0, src1, data) \
	381	APPEND_MATH_IMM_u32(ADD, desc, dest, src0, src1, data)
	382	#define append_math_sub_imm_u32(desc, dest, src0, src1, data) \
	383	APPEND_MATH_IMM_u32(SUB, desc, dest, src0, src1, data)
	384	#define append_math_add_c_imm_u32(desc, dest, src0, src1, data) \
	385	APPEND_MATH_IMM_u32(ADDC, desc, dest, src0, src1, data)
	386	#define append_math_sub_b_imm_u32(desc, dest, src0, src1, data) \
	387	APPEND_MATH_IMM_u32(SUBB, desc, dest, src0, src1, data)
	388	#define append_math_and_imm_u32(desc, dest, src0, src1, data) \
	389	APPEND_MATH_IMM_u32(AND, desc, dest, src0, src1, data)
	390	#define append_math_or_imm_u32(desc, dest, src0, src1, data) \
	391	APPEND_MATH_IMM_u32(OR, desc, dest, src0, src1, data)
	392	#define append_math_xor_imm_u32(desc, dest, src0, src1, data) \
	393	APPEND_MATH_IMM_u32(XOR, desc, dest, src0, src1, data)
	394	#define append_math_lshift_imm_u32(desc, dest, src0, src1, data) \
	395	APPEND_MATH_IMM_u32(LSHIFT, desc, dest, src0, src1, data)
	396	#define append_math_rshift_imm_u32(desc, dest, src0, src1, data) \
	397	APPEND_MATH_IMM_u32(RSHIFT, desc, dest, src0, src1, data)
3ebfa92f AV	398
	399	/* Exactly one source is IMM. Data is passed in as u64 value */
	400	#define APPEND_MATH_IMM_u64(op, desc, dest, src_0, src_1, data) \
	401	do { \
	402	u32 upper = (data >> 16) >> 16; \
	403	APPEND_MATH(op, desc, dest, src_0, src_1, CAAM_CMD_SZ * 2 \| \
	404	(upper ? 0 : MATH_IFB)); \
	405	if (upper) \
	406	append_u64(desc, data); \
	407	else \
c1f2cd21	408	append_u32(desc, lower_32_bits(data)); \
3ebfa92f AV	409	} while (0)
	410
	411	#define append_math_add_imm_u64(desc, dest, src0, src1, data) \
	412	APPEND_MATH_IMM_u64(ADD, desc, dest, src0, src1, data)
	413	#define append_math_sub_imm_u64(desc, dest, src0, src1, data) \
	414	APPEND_MATH_IMM_u64(SUB, desc, dest, src0, src1, data)
	415	#define append_math_add_c_imm_u64(desc, dest, src0, src1, data) \
	416	APPEND_MATH_IMM_u64(ADDC, desc, dest, src0, src1, data)
	417	#define append_math_sub_b_imm_u64(desc, dest, src0, src1, data) \
	418	APPEND_MATH_IMM_u64(SUBB, desc, dest, src0, src1, data)
	419	#define append_math_and_imm_u64(desc, dest, src0, src1, data) \
	420	APPEND_MATH_IMM_u64(AND, desc, dest, src0, src1, data)
	421	#define append_math_or_imm_u64(desc, dest, src0, src1, data) \
	422	APPEND_MATH_IMM_u64(OR, desc, dest, src0, src1, data)
	423	#define append_math_xor_imm_u64(desc, dest, src0, src1, data) \
	424	APPEND_MATH_IMM_u64(XOR, desc, dest, src0, src1, data)
	425	#define append_math_lshift_imm_u64(desc, dest, src0, src1, data) \
	426	APPEND_MATH_IMM_u64(LSHIFT, desc, dest, src0, src1, data)
	427	#define append_math_rshift_imm_u64(desc, dest, src0, src1, data) \
	428	APPEND_MATH_IMM_u64(RSHIFT, desc, dest, src0, src1, data)