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Diffstat (limited to 'drivers/crypto/caam/desc_constr.h')
-rw-r--r--drivers/crypto/caam/desc_constr.h133
1 files changed, 99 insertions, 34 deletions
diff --git a/drivers/crypto/caam/desc_constr.h b/drivers/crypto/caam/desc_constr.h
index a8cd8a78ec1f..b9c8d98ef826 100644
--- a/drivers/crypto/caam/desc_constr.h
+++ b/drivers/crypto/caam/desc_constr.h
@@ -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; \
@@ -426,3 +430,64 @@ do { \
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)
+
+/**
+ * struct alginfo - Container for algorithm details
+ * @algtype: algorithm selector; for valid values, see documentation of the
+ * functions where it is used.
+ * @keylen: length of the provided algorithm key, in bytes
+ * @keylen_pad: padded length of the provided algorithm key, in bytes
+ * @key: address where algorithm key resides; virtual address if key_inline
+ * is true, dma (bus) address if key_inline is false.
+ * @key_inline: true - key can be inlined in the descriptor; false - key is
+ * referenced by the descriptor
+ */
+struct alginfo {
+ u32 algtype;
+ unsigned int keylen;
+ unsigned int keylen_pad;
+ union {
+ dma_addr_t key_dma;
+ void *key_virt;
+ };
+ bool key_inline;
+};
+
+/**
+ * desc_inline_query() - Provide indications on which data items can be inlined
+ * and which shall be referenced in a shared descriptor.
+ * @sd_base_len: Shared descriptor base length - bytes consumed by the commands,
+ * excluding the data items to be inlined (or corresponding
+ * pointer if an item is not inlined). Each cnstr_* function that
+ * generates descriptors should have a define mentioning
+ * corresponding length.
+ * @jd_len: Maximum length of the job descriptor(s) that will be used
+ * together with the shared descriptor.
+ * @data_len: Array of lengths of the data items trying to be inlined
+ * @inl_mask: 32bit mask with bit x = 1 if data item x can be inlined, 0
+ * otherwise.
+ * @count: Number of data items (size of @data_len array); must be <= 32
+ *
+ * Return: 0 if data can be inlined / referenced, negative value if not. If 0,
+ * check @inl_mask for details.
+ */
+static inline int desc_inline_query(unsigned int sd_base_len,
+ unsigned int jd_len, unsigned int *data_len,
+ u32 *inl_mask, unsigned int count)
+{
+ int rem_bytes = (int)(CAAM_DESC_BYTES_MAX - sd_base_len - jd_len);
+ unsigned int i;
+
+ *inl_mask = 0;
+ for (i = 0; (i < count) && (rem_bytes > 0); i++) {
+ if (rem_bytes - (int)(data_len[i] +
+ (count - i - 1) * CAAM_PTR_SZ) >= 0) {
+ rem_bytes -= data_len[i];
+ *inl_mask |= (1 << i);
+ } else {
+ rem_bytes -= CAAM_PTR_SZ;
+ }
+ }
+
+ return (rem_bytes >= 0) ? 0 : -1;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2025-01-21 16:54:23 +0100