mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-14 08:57:58 +00:00
b9eebfade9
SHA-256 and SHA-1 accelerated using SEC hardware in Freescale SoC's The driver for SEC (CAAM) IP is based on linux drivers/crypto/caam. The platforms needto add the MACRO CONFIG_FSL_CAAM inorder to enable initialization of this hardware IP. Signed-off-by: Ruchika Gupta <ruchika.gupta@freescale.com> Reviewed-by: York Sun <yorksun@freescale.com>
280 lines
7.2 KiB
C
280 lines
7.2 KiB
C
/*
|
|
* caam descriptor construction helper functions
|
|
*
|
|
* Copyright 2008-2014 Freescale Semiconductor, Inc.
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*
|
|
* Based on desc_constr.h file in linux drivers/crypto/caam
|
|
*/
|
|
|
|
#include <linux/compat.h>
|
|
#include "desc.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 { printf("%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))
|
|
|
|
static inline int desc_len(u32 *desc)
|
|
{
|
|
return *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 init_desc(u32 *desc, u32 options)
|
|
{
|
|
*desc = (options | HDR_ONE) + 1;
|
|
}
|
|
|
|
static inline void init_job_desc(u32 *desc, u32 options)
|
|
{
|
|
init_desc(desc, CMD_DESC_HDR | options);
|
|
}
|
|
|
|
static inline void append_ptr(u32 *desc, dma_addr_t ptr)
|
|
{
|
|
dma_addr_t *offset = (dma_addr_t *)desc_end(desc);
|
|
|
|
*offset = ptr;
|
|
|
|
(*desc) += CAAM_PTR_SZ / CAAM_CMD_SZ;
|
|
}
|
|
|
|
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) += (len + CAAM_CMD_SZ - 1) / CAAM_CMD_SZ;
|
|
}
|
|
|
|
static inline void append_cmd(u32 *desc, u32 command)
|
|
{
|
|
u32 *cmd = desc_end(desc);
|
|
|
|
*cmd = command;
|
|
|
|
(*desc)++;
|
|
}
|
|
|
|
#define append_u32 append_cmd
|
|
|
|
static inline void append_u64(u32 *desc, u64 data)
|
|
{
|
|
u32 *offset = desc_end(desc);
|
|
|
|
*offset = upper_32_bits(data);
|
|
*(++offset) = lower_32_bits(data);
|
|
|
|
(*desc) += 2;
|
|
}
|
|
|
|
/* Write command without affecting header, and return pointer to next word */
|
|
static inline u32 *write_cmd(u32 *desc, u32 command)
|
|
{
|
|
*desc = 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 = *jump_cmd | (desc_len(desc) - (jump_cmd - desc));
|
|
}
|
|
|
|
static inline void set_move_tgt_here(u32 *desc, u32 *move_cmd)
|
|
{
|
|
*move_cmd &= ~MOVE_OFFSET_MASK;
|
|
*move_cmd = *move_cmd | ((desc_len(desc) << (MOVE_OFFSET_SHIFT + 2)) &
|
|
MOVE_OFFSET_MASK);
|
|
}
|
|
|
|
#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_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);
|