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提交 24a4f14f 编写于 作者: H Horia Geantă 提交者： Herbert Xu
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crypto: caam - constify pointer to descriptor buffer 

The pointer to the descriptor buffer is not touched,
it always points to start of the descriptor buffer.
Thus, make it const.
Signed-off-by: NHoria Geantă <horia.geanta@nxp.com>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
上级 e25ff92e
隐藏空白更改
内联 并排
Showing with 38 addition and 34 deletion
drivers/crypto/caam/desc_constr.h
浏览文件 @ 24a4f14f
......@@ -33,38 +33,39 @@
extern bool caam_little_end;
static inline int desc_len(u32 *desc)
static inline int desc_len(u32 * const desc)
{
return caam32_to_cpu(*desc) & HDR_DESCLEN_MASK;
}
static inline int desc_bytes(void *desc)
static inline int desc_bytes(void * const desc)
{
return desc_len(desc) * CAAM_CMD_SZ;
}
static inline u32 *desc_end(u32 *desc)
static inline u32 *desc_end(u32 * const desc)
{
return desc + desc_len(desc);
}
static inline void *sh_desc_pdb(u32 *desc)
static inline void *sh_desc_pdb(u32 * const desc)
{
return desc + 1;
}
static inline void init_desc(u32 *desc, u32 options)
static inline void init_desc(u32 * const desc, u32 options)
{
*desc = cpu_to_caam32((options | HDR_ONE) + 1);
}
static inline void init_sh_desc(u32 *desc, u32 options)
static inline void init_sh_desc(u32 * const 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)
static inline void init_sh_desc_pdb(u32 * const desc, u32 options,
size_t pdb_bytes)
{
u32 pdb_len = (pdb_bytes + CAAM_CMD_SZ - 1) / CAAM_CMD_SZ;
......@@ -72,19 +73,20 @@ static inline void init_sh_desc_pdb(u32 *desc, u32 options, size_t pdb_bytes)
options);
}
static inline void init_job_desc(u32 *desc, u32 options)
static inline void init_job_desc(u32 * const 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)
static inline void init_job_desc_pdb(u32 * const 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)
static inline void append_ptr(u32 * const desc, dma_addr_t ptr)
{
dma_addr_t *offset = (dma_addr_t *)desc_end(desc);
......@@ -94,8 +96,8 @@ static inline void append_ptr(u32 *desc, dma_addr_t ptr)
CAAM_PTR_SZ / CAAM_CMD_SZ);
}
static inline void init_job_desc_shared(u32 *desc, dma_addr_t ptr, int len,
u32 options)
static inline void init_job_desc_shared(u32 * const desc, dma_addr_t ptr,
int len, u32 options)
{
PRINT_POS;
init_job_desc(desc, HDR_SHARED | options |
......@@ -103,7 +105,7 @@ static inline void init_job_desc_shared(u32 *desc, dma_addr_t ptr, int len,
append_ptr(desc, ptr);
}
static inline void append_data(u32 *desc, void *data, int len)
static inline void append_data(u32 * const desc, void *data, int len)
{
u32 *offset = desc_end(desc);
......@@ -114,7 +116,7 @@ static inline void append_data(u32 *desc, void *data, int len)
(len + CAAM_CMD_SZ - 1) / CAAM_CMD_SZ);
}
static inline void append_cmd(u32 *desc, u32 command)
static inline void append_cmd(u32 * const desc, u32 command)
{
u32 *cmd = desc_end(desc);
......@@ -125,7 +127,7 @@ static inline void append_cmd(u32 *desc, u32 command)
#define append_u32 append_cmd
static inline void append_u64(u32 *desc, u64 data)
static inline void append_u64(u32 * const desc, u64 data)
{
u32 *offset = desc_end(desc);
......@@ -142,14 +144,14 @@ static inline void append_u64(u32 *desc, u64 data)
}
/* Write command without affecting header, and return pointer to next word */
static inline u32 *write_cmd(u32 *desc, u32 command)
static inline u32 *write_cmd(u32 * const 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,
static inline void append_cmd_ptr(u32 * const desc, dma_addr_t ptr, int len,
u32 command)
{
append_cmd(desc, command | len);
......@@ -157,7 +159,7 @@ static inline void append_cmd_ptr(u32 *desc, dma_addr_t ptr, int len,
}
/* Write length after pointer, rather than inside command */
static inline void append_cmd_ptr_extlen(u32 *desc, dma_addr_t ptr,
static inline void append_cmd_ptr_extlen(u32 * const desc, dma_addr_t ptr,
unsigned int len, u32 command)
{
append_cmd(desc, command);
......@@ -166,7 +168,7 @@ static inline void append_cmd_ptr_extlen(u32 *desc, dma_addr_t ptr,
append_cmd(desc, len);
}
static inline void append_cmd_data(u32 *desc, void *data, int len,
static inline void append_cmd_data(u32 * const desc, void *data, int len,
u32 command)
{
append_cmd(desc, command | IMMEDIATE | len);
......@@ -174,7 +176,7 @@ static inline void append_cmd_data(u32 *desc, void *data, int len,
}
#define APPEND_CMD_RET(cmd, op) \
static inline u32 *append_##cmd(u32 *desc, u32 options) \
static inline u32 *append_##cmd(u32 * const desc, u32 options) \
{ \
u32 *cmd = desc_end(desc); \
PRINT_POS; \
......@@ -184,13 +186,13 @@ static inline u32 *append_##cmd(u32 *desc, u32 options) \
APPEND_CMD_RET(jump, JUMP)
APPEND_CMD_RET(move, MOVE)
static inline void set_jump_tgt_here(u32 *desc, u32 *jump_cmd)
static inline void set_jump_tgt_here(u32 * const 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)
static inline void set_move_tgt_here(u32 * const desc, u32 *move_cmd)
{
u32 val = caam32_to_cpu(*move_cmd);
......@@ -200,7 +202,7 @@ static inline void set_move_tgt_here(u32 *desc, u32 *move_cmd)
}
#define APPEND_CMD(cmd, op) \
static inline void append_##cmd(u32 *desc, u32 options) \
static inline void append_##cmd(u32 * const desc, u32 options) \
{ \
PRINT_POS; \
append_cmd(desc, CMD_##op | options); \
......@@ -208,7 +210,8 @@ static inline void append_##cmd(u32 *desc, u32 options) \
APPEND_CMD(operation, OPERATION)
#define APPEND_CMD_LEN(cmd, op) \
static inline void append_##cmd(u32 *desc, unsigned int len, u32 options) \
static inline void append_##cmd(u32 * const desc, unsigned int len, \
u32 options) \
{ \
PRINT_POS; \
append_cmd(desc, CMD_##op | len | options); \
......@@ -220,8 +223,8 @@ 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) \
static inline void append_##cmd(u32 * const desc, dma_addr_t ptr, \
unsigned int len, u32 options) \
{ \
PRINT_POS; \
append_cmd_ptr(desc, ptr, len, CMD_##op | options); \
......@@ -231,8 +234,8 @@ 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)
static inline void append_store(u32 * const desc, dma_addr_t ptr,
unsigned int len, u32 options)
{
u32 cmd_src;
......@@ -249,7 +252,8 @@ static inline void append_store(u32 *desc, dma_addr_t ptr, unsigned int len,
}
#define APPEND_SEQ_PTR_INTLEN(cmd, op) \
static inline void append_seq_##cmd##_ptr_intlen(u32 *desc, dma_addr_t ptr, \
static inline void append_seq_##cmd##_ptr_intlen(u32 * const desc, \
dma_addr_t ptr, \
unsigned int len, \
u32 options) \
{ \
......@@ -263,7 +267,7 @@ 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, \
static inline void append_##cmd##_as_imm(u32 * const desc, void *data, \
unsigned int len, u32 options) \
{ \
PRINT_POS; \
......@@ -273,7 +277,7 @@ 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, \
static inline void append_##cmd##_extlen(u32 * const desc, dma_addr_t ptr, \
unsigned int len, u32 options) \
{ \
PRINT_POS; \
......@@ -287,7 +291,7 @@ APPEND_CMD_PTR_EXTLEN(seq_out_ptr, SEQ_OUT_PTR)
* the size of its type
*/
#define APPEND_CMD_PTR_LEN(cmd, op, type) \
static inline void append_##cmd(u32 *desc, dma_addr_t ptr, \
static inline void append_##cmd(u32 * const desc, dma_addr_t ptr, \
type len, u32 options) \
{ \
PRINT_POS; \
......@@ -304,7 +308,7 @@ APPEND_CMD_PTR_LEN(seq_out_ptr, SEQ_OUT_PTR, u32)
* 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, \
static inline void append_##cmd##_as_imm(u32 * const desc, void *data, \
unsigned int data_len, \
unsigned int len, u32 options) \
{ \
......@@ -315,7 +319,7 @@ static inline void append_##cmd##_as_imm(u32 *desc, void *data, \
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, \
static inline void append_##cmd##_imm_##type(u32 * const desc, type immediate, \
u32 options) \
{ \
PRINT_POS; \
......
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