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: Horia Geantă <horia.geanta@nxp.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Horia Geantă
Herbert Xu
parent
e25ff92e8f
commit
24a4f14f0a
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@ -33,38 +33,39 @@
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extern bool caam_little_end;
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static inline int desc_len(u32 *desc)
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static inline int desc_len(u32 * const desc)
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{
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return caam32_to_cpu(*desc) & HDR_DESCLEN_MASK;
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}
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static inline int desc_bytes(void *desc)
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static inline int desc_bytes(void * const desc)
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{
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return desc_len(desc) * CAAM_CMD_SZ;
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}
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static inline u32 *desc_end(u32 *desc)
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static inline u32 *desc_end(u32 * const desc)
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{
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return desc + desc_len(desc);
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}
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static inline void *sh_desc_pdb(u32 *desc)
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static inline void *sh_desc_pdb(u32 * const desc)
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{
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return desc + 1;
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}
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static inline void init_desc(u32 *desc, u32 options)
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static inline void init_desc(u32 * const desc, u32 options)
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{
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*desc = cpu_to_caam32((options | HDR_ONE) + 1);
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}
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static inline void init_sh_desc(u32 *desc, u32 options)
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static inline void init_sh_desc(u32 * const desc, u32 options)
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{
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PRINT_POS;
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init_desc(desc, CMD_SHARED_DESC_HDR | options);
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}
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static inline void init_sh_desc_pdb(u32 *desc, u32 options, size_t pdb_bytes)
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static inline void init_sh_desc_pdb(u32 * const desc, u32 options,
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size_t pdb_bytes)
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{
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u32 pdb_len = (pdb_bytes + CAAM_CMD_SZ - 1) / CAAM_CMD_SZ;
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@ -72,19 +73,20 @@ static inline void init_sh_desc_pdb(u32 *desc, u32 options, size_t pdb_bytes)
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options);
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}
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static inline void init_job_desc(u32 *desc, u32 options)
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static inline void init_job_desc(u32 * const desc, u32 options)
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{
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init_desc(desc, CMD_DESC_HDR | options);
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}
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static inline void init_job_desc_pdb(u32 *desc, u32 options, size_t pdb_bytes)
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static inline void init_job_desc_pdb(u32 * const desc, u32 options,
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size_t pdb_bytes)
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{
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u32 pdb_len = (pdb_bytes + CAAM_CMD_SZ - 1) / CAAM_CMD_SZ;
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init_job_desc(desc, (((pdb_len + 1) << HDR_START_IDX_SHIFT)) | options);
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}
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static inline void append_ptr(u32 *desc, dma_addr_t ptr)
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static inline void append_ptr(u32 * const desc, dma_addr_t ptr)
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{
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dma_addr_t *offset = (dma_addr_t *)desc_end(desc);
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@ -94,8 +96,8 @@ static inline void append_ptr(u32 *desc, dma_addr_t ptr)
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CAAM_PTR_SZ / CAAM_CMD_SZ);
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}
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static inline void init_job_desc_shared(u32 *desc, dma_addr_t ptr, int len,
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u32 options)
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static inline void init_job_desc_shared(u32 * const desc, dma_addr_t ptr,
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int len, u32 options)
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{
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PRINT_POS;
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init_job_desc(desc, HDR_SHARED | options |
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@ -103,7 +105,7 @@ static inline void init_job_desc_shared(u32 *desc, dma_addr_t ptr, int len,
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append_ptr(desc, ptr);
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}
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static inline void append_data(u32 *desc, void *data, int len)
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static inline void append_data(u32 * const desc, void *data, int len)
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{
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u32 *offset = desc_end(desc);
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@ -114,7 +116,7 @@ static inline void append_data(u32 *desc, void *data, int len)
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(len + CAAM_CMD_SZ - 1) / CAAM_CMD_SZ);
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}
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static inline void append_cmd(u32 *desc, u32 command)
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static inline void append_cmd(u32 * const desc, u32 command)
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{
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u32 *cmd = desc_end(desc);
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@ -125,7 +127,7 @@ static inline void append_cmd(u32 *desc, u32 command)
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#define append_u32 append_cmd
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static inline void append_u64(u32 *desc, u64 data)
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static inline void append_u64(u32 * const desc, u64 data)
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{
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u32 *offset = desc_end(desc);
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@ -142,14 +144,14 @@ static inline void append_u64(u32 *desc, u64 data)
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}
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/* Write command without affecting header, and return pointer to next word */
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static inline u32 *write_cmd(u32 *desc, u32 command)
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static inline u32 *write_cmd(u32 * const desc, u32 command)
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{
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*desc = cpu_to_caam32(command);
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return desc + 1;
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}
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static inline void append_cmd_ptr(u32 *desc, dma_addr_t ptr, int len,
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static inline void append_cmd_ptr(u32 * const desc, dma_addr_t ptr, int len,
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u32 command)
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{
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append_cmd(desc, command | len);
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@ -157,7 +159,7 @@ static inline void append_cmd_ptr(u32 *desc, dma_addr_t ptr, int len,
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}
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/* Write length after pointer, rather than inside command */
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static inline void append_cmd_ptr_extlen(u32 *desc, dma_addr_t ptr,
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static inline void append_cmd_ptr_extlen(u32 * const desc, dma_addr_t ptr,
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unsigned int len, u32 command)
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{
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append_cmd(desc, command);
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@ -166,7 +168,7 @@ static inline void append_cmd_ptr_extlen(u32 *desc, dma_addr_t ptr,
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append_cmd(desc, len);
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}
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static inline void append_cmd_data(u32 *desc, void *data, int len,
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static inline void append_cmd_data(u32 * const desc, void *data, int len,
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u32 command)
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{
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append_cmd(desc, command | IMMEDIATE | len);
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@ -174,7 +176,7 @@ static inline void append_cmd_data(u32 *desc, void *data, int len,
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}
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#define APPEND_CMD_RET(cmd, op) \
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static inline u32 *append_##cmd(u32 *desc, u32 options) \
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static inline u32 *append_##cmd(u32 * const desc, u32 options) \
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{ \
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u32 *cmd = desc_end(desc); \
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PRINT_POS; \
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@ -184,13 +186,13 @@ static inline u32 *append_##cmd(u32 *desc, u32 options) \
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APPEND_CMD_RET(jump, JUMP)
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APPEND_CMD_RET(move, MOVE)
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static inline void set_jump_tgt_here(u32 *desc, u32 *jump_cmd)
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static inline void set_jump_tgt_here(u32 * const desc, u32 *jump_cmd)
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{
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*jump_cmd = cpu_to_caam32(caam32_to_cpu(*jump_cmd) |
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(desc_len(desc) - (jump_cmd - desc)));
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}
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static inline void set_move_tgt_here(u32 *desc, u32 *move_cmd)
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static inline void set_move_tgt_here(u32 * const desc, u32 *move_cmd)
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{
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u32 val = caam32_to_cpu(*move_cmd);
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@ -200,7 +202,7 @@ static inline void set_move_tgt_here(u32 *desc, u32 *move_cmd)
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}
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#define APPEND_CMD(cmd, op) \
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static inline void append_##cmd(u32 *desc, u32 options) \
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static inline void append_##cmd(u32 * const desc, u32 options) \
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{ \
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PRINT_POS; \
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append_cmd(desc, CMD_##op | options); \
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@ -208,7 +210,8 @@ static inline void append_##cmd(u32 *desc, u32 options) \
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APPEND_CMD(operation, OPERATION)
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#define APPEND_CMD_LEN(cmd, op) \
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static inline void append_##cmd(u32 *desc, unsigned int len, u32 options) \
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static inline void append_##cmd(u32 * const desc, unsigned int len, \
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u32 options) \
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{ \
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PRINT_POS; \
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append_cmd(desc, CMD_##op | len | options); \
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@ -220,8 +223,8 @@ APPEND_CMD_LEN(seq_fifo_load, SEQ_FIFO_LOAD)
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APPEND_CMD_LEN(seq_fifo_store, SEQ_FIFO_STORE)
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#define APPEND_CMD_PTR(cmd, op) \
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static inline void append_##cmd(u32 *desc, dma_addr_t ptr, unsigned int len, \
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u32 options) \
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static inline void append_##cmd(u32 * const desc, dma_addr_t ptr, \
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unsigned int len, u32 options) \
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{ \
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PRINT_POS; \
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append_cmd_ptr(desc, ptr, len, CMD_##op | options); \
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@ -231,8 +234,8 @@ APPEND_CMD_PTR(load, LOAD)
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APPEND_CMD_PTR(fifo_load, FIFO_LOAD)
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APPEND_CMD_PTR(fifo_store, FIFO_STORE)
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static inline void append_store(u32 *desc, dma_addr_t ptr, unsigned int len,
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u32 options)
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static inline void append_store(u32 * const desc, dma_addr_t ptr,
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unsigned int len, u32 options)
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{
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u32 cmd_src;
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@ -249,7 +252,8 @@ static inline void append_store(u32 *desc, dma_addr_t ptr, unsigned int len,
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}
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#define APPEND_SEQ_PTR_INTLEN(cmd, op) \
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static inline void append_seq_##cmd##_ptr_intlen(u32 *desc, dma_addr_t ptr, \
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static inline void append_seq_##cmd##_ptr_intlen(u32 * const desc, \
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dma_addr_t ptr, \
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unsigned int len, \
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u32 options) \
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{ \
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@ -263,7 +267,7 @@ APPEND_SEQ_PTR_INTLEN(in, IN)
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APPEND_SEQ_PTR_INTLEN(out, OUT)
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#define APPEND_CMD_PTR_TO_IMM(cmd, op) \
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static inline void append_##cmd##_as_imm(u32 *desc, void *data, \
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static inline void append_##cmd##_as_imm(u32 * const desc, void *data, \
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unsigned int len, u32 options) \
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{ \
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PRINT_POS; \
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@ -273,7 +277,7 @@ APPEND_CMD_PTR_TO_IMM(load, LOAD);
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APPEND_CMD_PTR_TO_IMM(fifo_load, FIFO_LOAD);
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#define APPEND_CMD_PTR_EXTLEN(cmd, op) \
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static inline void append_##cmd##_extlen(u32 *desc, dma_addr_t ptr, \
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static inline void append_##cmd##_extlen(u32 * const desc, dma_addr_t ptr, \
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unsigned int len, u32 options) \
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{ \
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PRINT_POS; \
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@ -287,7 +291,7 @@ APPEND_CMD_PTR_EXTLEN(seq_out_ptr, SEQ_OUT_PTR)
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* the size of its type
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*/
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#define APPEND_CMD_PTR_LEN(cmd, op, type) \
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static inline void append_##cmd(u32 *desc, dma_addr_t ptr, \
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static inline void append_##cmd(u32 * const desc, dma_addr_t ptr, \
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type len, u32 options) \
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{ \
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PRINT_POS; \
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@ -304,7 +308,7 @@ APPEND_CMD_PTR_LEN(seq_out_ptr, SEQ_OUT_PTR, u32)
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* from length of immediate data provided, e.g., split keys
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*/
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#define APPEND_CMD_PTR_TO_IMM2(cmd, op) \
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static inline void append_##cmd##_as_imm(u32 *desc, void *data, \
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static inline void append_##cmd##_as_imm(u32 * const desc, void *data, \
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unsigned int data_len, \
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unsigned int len, u32 options) \
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{ \
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@ -315,7 +319,7 @@ static inline void append_##cmd##_as_imm(u32 *desc, void *data, \
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APPEND_CMD_PTR_TO_IMM2(key, KEY);
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#define APPEND_CMD_RAW_IMM(cmd, op, type) \
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static inline void append_##cmd##_imm_##type(u32 *desc, type immediate, \
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static inline void append_##cmd##_imm_##type(u32 * const desc, type immediate, \
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u32 options) \
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{ \
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PRINT_POS; \
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