2 * caam descriptor construction helper functions
4 * Copyright 2008-2012 Freescale Semiconductor, Inc.
9 #define IMMEDIATE (1 << 23)
10 #define CAAM_CMD_SZ sizeof(u32)
11 #define CAAM_PTR_SZ sizeof(dma_addr_t)
12 #define CAAM_DESC_BYTES_MAX (CAAM_CMD_SZ * MAX_CAAM_DESCSIZE)
15 #define PRINT_POS do { printk(KERN_DEBUG "%02d: %s\n", desc_len(desc),\
16 &__func__[sizeof("append")]); } while (0)
21 #define SET_OK_NO_PROP_ERRORS (IMMEDIATE | LDST_CLASS_DECO | \
22 LDST_SRCDST_WORD_DECOCTRL | \
23 (LDOFF_CHG_SHARE_OK_NO_PROP << \
25 #define DISABLE_AUTO_INFO_FIFO (IMMEDIATE | LDST_CLASS_DECO | \
26 LDST_SRCDST_WORD_DECOCTRL | \
27 (LDOFF_DISABLE_AUTO_NFIFO << LDST_OFFSET_SHIFT))
28 #define ENABLE_AUTO_INFO_FIFO (IMMEDIATE | LDST_CLASS_DECO | \
29 LDST_SRCDST_WORD_DECOCTRL | \
30 (LDOFF_ENABLE_AUTO_NFIFO << LDST_OFFSET_SHIFT))
32 static inline int desc_len(u32 *desc)
34 return *desc & HDR_DESCLEN_MASK;
37 static inline int desc_bytes(void *desc)
39 return desc_len(desc) * CAAM_CMD_SZ;
42 static inline u32 *desc_end(u32 *desc)
44 return desc + desc_len(desc);
47 static inline void *sh_desc_pdb(u32 *desc)
52 static inline void init_desc(u32 *desc, u32 options)
54 *desc = (options | HDR_ONE) + 1;
57 static inline void init_sh_desc(u32 *desc, u32 options)
60 init_desc(desc, CMD_SHARED_DESC_HDR | options);
63 static inline void init_sh_desc_pdb(u32 *desc, u32 options, size_t pdb_bytes)
65 u32 pdb_len = (pdb_bytes + CAAM_CMD_SZ - 1) / CAAM_CMD_SZ;
67 init_sh_desc(desc, (((pdb_len + 1) << HDR_START_IDX_SHIFT) + pdb_len) |
71 static inline void init_job_desc(u32 *desc, u32 options)
73 init_desc(desc, CMD_DESC_HDR | options);
76 static inline void append_ptr(u32 *desc, dma_addr_t ptr)
78 dma_addr_t *offset = (dma_addr_t *)desc_end(desc);
82 (*desc) += CAAM_PTR_SZ / CAAM_CMD_SZ;
85 static inline void init_job_desc_shared(u32 *desc, dma_addr_t ptr, int len,
89 init_job_desc(desc, HDR_SHARED | options |
90 (len << HDR_START_IDX_SHIFT));
91 append_ptr(desc, ptr);
94 static inline void append_data(u32 *desc, void *data, int len)
96 u32 *offset = desc_end(desc);
98 if (len) /* avoid sparse warning: memcpy with byte count of 0 */
99 memcpy(offset, data, len);
101 (*desc) += (len + CAAM_CMD_SZ - 1) / CAAM_CMD_SZ;
104 static inline void append_cmd(u32 *desc, u32 command)
106 u32 *cmd = desc_end(desc);
113 #define append_u32 append_cmd
115 static inline void append_u64(u32 *desc, u64 data)
117 u32 *offset = desc_end(desc);
119 *offset = upper_32_bits(data);
120 *(++offset) = lower_32_bits(data);
125 /* Write command without affecting header, and return pointer to next word */
126 static inline u32 *write_cmd(u32 *desc, u32 command)
133 static inline void append_cmd_ptr(u32 *desc, dma_addr_t ptr, int len,
136 append_cmd(desc, command | len);
137 append_ptr(desc, ptr);
140 /* Write length after pointer, rather than inside command */
141 static inline void append_cmd_ptr_extlen(u32 *desc, dma_addr_t ptr,
142 unsigned int len, u32 command)
144 append_cmd(desc, command);
145 if (!(command & (SQIN_RTO | SQIN_PRE)))
146 append_ptr(desc, ptr);
147 append_cmd(desc, len);
150 static inline void append_cmd_data(u32 *desc, void *data, int len,
153 append_cmd(desc, command | IMMEDIATE | len);
154 append_data(desc, data, len);
157 static inline u32 *append_jump(u32 *desc, u32 options)
159 u32 *cmd = desc_end(desc);
162 append_cmd(desc, CMD_JUMP | options);
167 static inline void set_jump_tgt_here(u32 *desc, u32 *jump_cmd)
169 *jump_cmd = *jump_cmd | (desc_len(desc) - (jump_cmd - desc));
172 #define APPEND_CMD(cmd, op) \
173 static inline void append_##cmd(u32 *desc, u32 options) \
176 append_cmd(desc, CMD_##op | options); \
178 APPEND_CMD(operation, OPERATION)
179 APPEND_CMD(move, MOVE)
181 #define APPEND_CMD_LEN(cmd, op) \
182 static inline void append_##cmd(u32 *desc, unsigned int len, u32 options) \
185 append_cmd(desc, CMD_##op | len | options); \
187 APPEND_CMD_LEN(seq_store, SEQ_STORE)
188 APPEND_CMD_LEN(seq_fifo_load, SEQ_FIFO_LOAD)
189 APPEND_CMD_LEN(seq_fifo_store, SEQ_FIFO_STORE)
191 #define APPEND_CMD_PTR(cmd, op) \
192 static inline void append_##cmd(u32 *desc, dma_addr_t ptr, unsigned int len, \
196 append_cmd_ptr(desc, ptr, len, CMD_##op | options); \
198 APPEND_CMD_PTR(key, KEY)
199 APPEND_CMD_PTR(load, LOAD)
200 APPEND_CMD_PTR(fifo_load, FIFO_LOAD)
201 APPEND_CMD_PTR(fifo_store, FIFO_STORE)
203 static inline void append_store(u32 *desc, dma_addr_t ptr, unsigned int len,
208 cmd_src = options & LDST_SRCDST_MASK;
210 append_cmd(desc, CMD_STORE | options | len);
212 /* The following options do not require pointer */
213 if (!(cmd_src == LDST_SRCDST_WORD_DESCBUF_SHARED ||
214 cmd_src == LDST_SRCDST_WORD_DESCBUF_JOB ||
215 cmd_src == LDST_SRCDST_WORD_DESCBUF_JOB_WE ||
216 cmd_src == LDST_SRCDST_WORD_DESCBUF_SHARED_WE))
217 append_ptr(desc, ptr);
220 #define APPEND_SEQ_PTR_INTLEN(cmd, op) \
221 static inline void append_seq_##cmd##_ptr_intlen(u32 *desc, dma_addr_t ptr, \
226 if (options & (SQIN_RTO | SQIN_PRE)) \
227 append_cmd(desc, CMD_SEQ_##op##_PTR | len | options); \
229 append_cmd_ptr(desc, ptr, len, CMD_SEQ_##op##_PTR | options); \
231 APPEND_SEQ_PTR_INTLEN(in, IN)
232 APPEND_SEQ_PTR_INTLEN(out, OUT)
234 #define APPEND_CMD_PTR_TO_IMM(cmd, op) \
235 static inline void append_##cmd##_as_imm(u32 *desc, void *data, \
236 unsigned int len, u32 options) \
239 append_cmd_data(desc, data, len, CMD_##op | options); \
241 APPEND_CMD_PTR_TO_IMM(load, LOAD);
242 APPEND_CMD_PTR_TO_IMM(fifo_load, FIFO_LOAD);
244 #define APPEND_CMD_PTR_EXTLEN(cmd, op) \
245 static inline void append_##cmd##_extlen(u32 *desc, dma_addr_t ptr, \
246 unsigned int len, u32 options) \
249 append_cmd_ptr_extlen(desc, ptr, len, CMD_##op | SQIN_EXT | options); \
251 APPEND_CMD_PTR_EXTLEN(seq_in_ptr, SEQ_IN_PTR)
252 APPEND_CMD_PTR_EXTLEN(seq_out_ptr, SEQ_OUT_PTR)
255 * Determine whether to store length internally or externally depending on
256 * the size of its type
258 #define APPEND_CMD_PTR_LEN(cmd, op, type) \
259 static inline void append_##cmd(u32 *desc, dma_addr_t ptr, \
260 type len, u32 options) \
263 if (sizeof(type) > sizeof(u16)) \
264 append_##cmd##_extlen(desc, ptr, len, options); \
266 append_##cmd##_intlen(desc, ptr, len, options); \
268 APPEND_CMD_PTR_LEN(seq_in_ptr, SEQ_IN_PTR, u32)
269 APPEND_CMD_PTR_LEN(seq_out_ptr, SEQ_OUT_PTR, u32)
272 * 2nd variant for commands whose specified immediate length differs
273 * from length of immediate data provided, e.g., split keys
275 #define APPEND_CMD_PTR_TO_IMM2(cmd, op) \
276 static inline void append_##cmd##_as_imm(u32 *desc, void *data, \
277 unsigned int data_len, \
278 unsigned int len, u32 options) \
281 append_cmd(desc, CMD_##op | IMMEDIATE | len | options); \
282 append_data(desc, data, data_len); \
284 APPEND_CMD_PTR_TO_IMM2(key, KEY);
286 #define APPEND_CMD_RAW_IMM(cmd, op, type) \
287 static inline void append_##cmd##_imm_##type(u32 *desc, type immediate, \
291 append_cmd(desc, CMD_##op | IMMEDIATE | options | sizeof(type)); \
292 append_cmd(desc, immediate); \
294 APPEND_CMD_RAW_IMM(load, LOAD, u32);
297 * Append math command. Only the last part of destination and source need to
300 #define APPEND_MATH(op, desc, dest, src_0, src_1, len) \
301 append_cmd(desc, CMD_MATH | MATH_FUN_##op | MATH_DEST_##dest | \
302 MATH_SRC0_##src_0 | MATH_SRC1_##src_1 | (u32)len);
304 #define append_math_add(desc, dest, src0, src1, len) \
305 APPEND_MATH(ADD, desc, dest, src0, src1, len)
306 #define append_math_sub(desc, dest, src0, src1, len) \
307 APPEND_MATH(SUB, desc, dest, src0, src1, len)
308 #define append_math_add_c(desc, dest, src0, src1, len) \
309 APPEND_MATH(ADDC, desc, dest, src0, src1, len)
310 #define append_math_sub_b(desc, dest, src0, src1, len) \
311 APPEND_MATH(SUBB, desc, dest, src0, src1, len)
312 #define append_math_and(desc, dest, src0, src1, len) \
313 APPEND_MATH(AND, desc, dest, src0, src1, len)
314 #define append_math_or(desc, dest, src0, src1, len) \
315 APPEND_MATH(OR, desc, dest, src0, src1, len)
316 #define append_math_xor(desc, dest, src0, src1, len) \
317 APPEND_MATH(XOR, desc, dest, src0, src1, len)
318 #define append_math_lshift(desc, dest, src0, src1, len) \
319 APPEND_MATH(LSHIFT, desc, dest, src0, src1, len)
320 #define append_math_rshift(desc, dest, src0, src1, len) \
321 APPEND_MATH(RSHIFT, desc, dest, src0, src1, len)
322 #define append_math_ldshift(desc, dest, src0, src1, len) \
323 APPEND_MATH(SHLD, desc, dest, src0, src1, len)
325 /* Exactly one source is IMM. Data is passed in as u32 value */
326 #define APPEND_MATH_IMM_u32(op, desc, dest, src_0, src_1, data) \
328 APPEND_MATH(op, desc, dest, src_0, src_1, CAAM_CMD_SZ); \
329 append_cmd(desc, data); \
332 #define append_math_add_imm_u32(desc, dest, src0, src1, data) \
333 APPEND_MATH_IMM_u32(ADD, desc, dest, src0, src1, data)
334 #define append_math_sub_imm_u32(desc, dest, src0, src1, data) \
335 APPEND_MATH_IMM_u32(SUB, desc, dest, src0, src1, data)
336 #define append_math_add_c_imm_u32(desc, dest, src0, src1, data) \
337 APPEND_MATH_IMM_u32(ADDC, desc, dest, src0, src1, data)
338 #define append_math_sub_b_imm_u32(desc, dest, src0, src1, data) \
339 APPEND_MATH_IMM_u32(SUBB, desc, dest, src0, src1, data)
340 #define append_math_and_imm_u32(desc, dest, src0, src1, data) \
341 APPEND_MATH_IMM_u32(AND, desc, dest, src0, src1, data)
342 #define append_math_or_imm_u32(desc, dest, src0, src1, data) \
343 APPEND_MATH_IMM_u32(OR, desc, dest, src0, src1, data)
344 #define append_math_xor_imm_u32(desc, dest, src0, src1, data) \
345 APPEND_MATH_IMM_u32(XOR, desc, dest, src0, src1, data)
346 #define append_math_lshift_imm_u32(desc, dest, src0, src1, data) \
347 APPEND_MATH_IMM_u32(LSHIFT, desc, dest, src0, src1, data)
348 #define append_math_rshift_imm_u32(desc, dest, src0, src1, data) \
349 APPEND_MATH_IMM_u32(RSHIFT, desc, dest, src0, src1, data)
351 /* Exactly one source is IMM. Data is passed in as u64 value */
352 #define APPEND_MATH_IMM_u64(op, desc, dest, src_0, src_1, data) \
354 u32 upper = (data >> 16) >> 16; \
355 APPEND_MATH(op, desc, dest, src_0, src_1, CAAM_CMD_SZ * 2 | \
356 (upper ? 0 : MATH_IFB)); \
358 append_u64(desc, data); \
360 append_u32(desc, data); \
363 #define append_math_add_imm_u64(desc, dest, src0, src1, data) \
364 APPEND_MATH_IMM_u64(ADD, desc, dest, src0, src1, data)
365 #define append_math_sub_imm_u64(desc, dest, src0, src1, data) \
366 APPEND_MATH_IMM_u64(SUB, desc, dest, src0, src1, data)
367 #define append_math_add_c_imm_u64(desc, dest, src0, src1, data) \
368 APPEND_MATH_IMM_u64(ADDC, desc, dest, src0, src1, data)
369 #define append_math_sub_b_imm_u64(desc, dest, src0, src1, data) \
370 APPEND_MATH_IMM_u64(SUBB, desc, dest, src0, src1, data)
371 #define append_math_and_imm_u64(desc, dest, src0, src1, data) \
372 APPEND_MATH_IMM_u64(AND, desc, dest, src0, src1, data)
373 #define append_math_or_imm_u64(desc, dest, src0, src1, data) \
374 APPEND_MATH_IMM_u64(OR, desc, dest, src0, src1, data)
375 #define append_math_xor_imm_u64(desc, dest, src0, src1, data) \
376 APPEND_MATH_IMM_u64(XOR, desc, dest, src0, src1, data)
377 #define append_math_lshift_imm_u64(desc, dest, src0, src1, data) \
378 APPEND_MATH_IMM_u64(LSHIFT, desc, dest, src0, src1, data)
379 #define append_math_rshift_imm_u64(desc, dest, src0, src1, data) \
380 APPEND_MATH_IMM_u64(RSHIFT, desc, dest, src0, src1, data)