Commit | Line | Data |
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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
8e8ec596 KP |
2 | /* |
3 | * caam descriptor construction helper functions | |
4 | * | |
c4b66406 | 5 | * Copyright 2008-2012 Freescale Semiconductor, Inc. |
8e8ec596 KP |
6 | */ |
7 | ||
cd373691 HG |
8 | #ifndef DESC_CONSTR_H |
9 | #define DESC_CONSTR_H | |
10 | ||
8e8ec596 | 11 | #include "desc.h" |
261ea058 | 12 | #include "regs.h" |
8e8ec596 KP |
13 | |
14 | #define IMMEDIATE (1 << 23) | |
15 | #define CAAM_CMD_SZ sizeof(u32) | |
16 | #define CAAM_PTR_SZ sizeof(dma_addr_t) | |
1acebad3 | 17 | #define CAAM_DESC_BYTES_MAX (CAAM_CMD_SZ * MAX_CAAM_DESCSIZE) |
aa2faec1 | 18 | #define DESC_JOB_IO_LEN (CAAM_CMD_SZ * 5 + CAAM_PTR_SZ * 3) |
8e8ec596 KP |
19 | |
20 | #ifdef DEBUG | |
21 | #define PRINT_POS do { printk(KERN_DEBUG "%02d: %s\n", desc_len(desc),\ | |
22 | &__func__[sizeof("append")]); } while (0) | |
23 | #else | |
24 | #define PRINT_POS | |
25 | #endif | |
26 | ||
a2ecb155 KP |
27 | #define SET_OK_NO_PROP_ERRORS (IMMEDIATE | LDST_CLASS_DECO | \ |
28 | LDST_SRCDST_WORD_DECOCTRL | \ | |
29 | (LDOFF_CHG_SHARE_OK_NO_PROP << \ | |
30 | LDST_OFFSET_SHIFT)) | |
8e8ec596 KP |
31 | #define DISABLE_AUTO_INFO_FIFO (IMMEDIATE | LDST_CLASS_DECO | \ |
32 | LDST_SRCDST_WORD_DECOCTRL | \ | |
33 | (LDOFF_DISABLE_AUTO_NFIFO << LDST_OFFSET_SHIFT)) | |
34 | #define ENABLE_AUTO_INFO_FIFO (IMMEDIATE | LDST_CLASS_DECO | \ | |
35 | LDST_SRCDST_WORD_DECOCTRL | \ | |
36 | (LDOFF_ENABLE_AUTO_NFIFO << LDST_OFFSET_SHIFT)) | |
37 | ||
261ea058 HG |
38 | extern bool caam_little_end; |
39 | ||
24a4f14f | 40 | static inline int desc_len(u32 * const desc) |
8e8ec596 | 41 | { |
261ea058 | 42 | return caam32_to_cpu(*desc) & HDR_DESCLEN_MASK; |
8e8ec596 KP |
43 | } |
44 | ||
24a4f14f | 45 | static inline int desc_bytes(void * const desc) |
8e8ec596 KP |
46 | { |
47 | return desc_len(desc) * CAAM_CMD_SZ; | |
48 | } | |
49 | ||
24a4f14f | 50 | static inline u32 *desc_end(u32 * const desc) |
8e8ec596 KP |
51 | { |
52 | return desc + desc_len(desc); | |
53 | } | |
54 | ||
24a4f14f | 55 | static inline void *sh_desc_pdb(u32 * const desc) |
8e8ec596 KP |
56 | { |
57 | return desc + 1; | |
58 | } | |
59 | ||
24a4f14f | 60 | static inline void init_desc(u32 * const desc, u32 options) |
8e8ec596 | 61 | { |
261ea058 | 62 | *desc = cpu_to_caam32((options | HDR_ONE) + 1); |
8e8ec596 KP |
63 | } |
64 | ||
24a4f14f | 65 | static inline void init_sh_desc(u32 * const desc, u32 options) |
8e8ec596 KP |
66 | { |
67 | PRINT_POS; | |
68 | init_desc(desc, CMD_SHARED_DESC_HDR | options); | |
69 | } | |
70 | ||
24a4f14f HG |
71 | static inline void init_sh_desc_pdb(u32 * const desc, u32 options, |
72 | size_t pdb_bytes) | |
8e8ec596 | 73 | { |
991c569c | 74 | u32 pdb_len = (pdb_bytes + CAAM_CMD_SZ - 1) / CAAM_CMD_SZ; |
8e8ec596 | 75 | |
c4b66406 | 76 | init_sh_desc(desc, (((pdb_len + 1) << HDR_START_IDX_SHIFT) + pdb_len) | |
8e8ec596 KP |
77 | options); |
78 | } | |
79 | ||
24a4f14f | 80 | static inline void init_job_desc(u32 * const desc, u32 options) |
8e8ec596 KP |
81 | { |
82 | init_desc(desc, CMD_DESC_HDR | options); | |
83 | } | |
84 | ||
24a4f14f HG |
85 | static inline void init_job_desc_pdb(u32 * const desc, u32 options, |
86 | size_t pdb_bytes) | |
8c419778 TA |
87 | { |
88 | u32 pdb_len = (pdb_bytes + CAAM_CMD_SZ - 1) / CAAM_CMD_SZ; | |
89 | ||
90 | init_job_desc(desc, (((pdb_len + 1) << HDR_START_IDX_SHIFT)) | options); | |
91 | } | |
92 | ||
24a4f14f | 93 | static inline void append_ptr(u32 * const desc, dma_addr_t ptr) |
8e8ec596 KP |
94 | { |
95 | dma_addr_t *offset = (dma_addr_t *)desc_end(desc); | |
96 | ||
261ea058 | 97 | *offset = cpu_to_caam_dma(ptr); |
8e8ec596 | 98 | |
261ea058 HG |
99 | (*desc) = cpu_to_caam32(caam32_to_cpu(*desc) + |
100 | CAAM_PTR_SZ / CAAM_CMD_SZ); | |
8e8ec596 KP |
101 | } |
102 | ||
24a4f14f HG |
103 | static inline void init_job_desc_shared(u32 * const desc, dma_addr_t ptr, |
104 | int len, u32 options) | |
8e8ec596 KP |
105 | { |
106 | PRINT_POS; | |
107 | init_job_desc(desc, HDR_SHARED | options | | |
108 | (len << HDR_START_IDX_SHIFT)); | |
109 | append_ptr(desc, ptr); | |
110 | } | |
111 | ||
24a4f14f | 112 | static inline void append_data(u32 * const desc, void *data, int len) |
8e8ec596 KP |
113 | { |
114 | u32 *offset = desc_end(desc); | |
115 | ||
116 | if (len) /* avoid sparse warning: memcpy with byte count of 0 */ | |
117 | memcpy(offset, data, len); | |
118 | ||
261ea058 HG |
119 | (*desc) = cpu_to_caam32(caam32_to_cpu(*desc) + |
120 | (len + CAAM_CMD_SZ - 1) / CAAM_CMD_SZ); | |
8e8ec596 KP |
121 | } |
122 | ||
24a4f14f | 123 | static inline void append_cmd(u32 * const desc, u32 command) |
8e8ec596 KP |
124 | { |
125 | u32 *cmd = desc_end(desc); | |
126 | ||
261ea058 | 127 | *cmd = cpu_to_caam32(command); |
8e8ec596 | 128 | |
261ea058 | 129 | (*desc) = cpu_to_caam32(caam32_to_cpu(*desc) + 1); |
8e8ec596 KP |
130 | } |
131 | ||
3ebfa92f AV |
132 | #define append_u32 append_cmd |
133 | ||
24a4f14f | 134 | static inline void append_u64(u32 * const desc, u64 data) |
3ebfa92f AV |
135 | { |
136 | u32 *offset = desc_end(desc); | |
137 | ||
261ea058 HG |
138 | /* Only 32-bit alignment is guaranteed in descriptor buffer */ |
139 | if (caam_little_end) { | |
140 | *offset = cpu_to_caam32(lower_32_bits(data)); | |
141 | *(++offset) = cpu_to_caam32(upper_32_bits(data)); | |
142 | } else { | |
143 | *offset = cpu_to_caam32(upper_32_bits(data)); | |
144 | *(++offset) = cpu_to_caam32(lower_32_bits(data)); | |
145 | } | |
3ebfa92f | 146 | |
261ea058 | 147 | (*desc) = cpu_to_caam32(caam32_to_cpu(*desc) + 2); |
3ebfa92f AV |
148 | } |
149 | ||
150 | /* Write command without affecting header, and return pointer to next word */ | |
24a4f14f | 151 | static inline u32 *write_cmd(u32 * const desc, u32 command) |
3ebfa92f | 152 | { |
261ea058 | 153 | *desc = cpu_to_caam32(command); |
3ebfa92f AV |
154 | |
155 | return desc + 1; | |
156 | } | |
157 | ||
24a4f14f | 158 | static inline void append_cmd_ptr(u32 * const desc, dma_addr_t ptr, int len, |
8e8ec596 KP |
159 | u32 command) |
160 | { | |
161 | append_cmd(desc, command | len); | |
162 | append_ptr(desc, ptr); | |
163 | } | |
164 | ||
6ec47334 | 165 | /* Write length after pointer, rather than inside command */ |
24a4f14f | 166 | static inline void append_cmd_ptr_extlen(u32 * const desc, dma_addr_t ptr, |
6ec47334 YK |
167 | unsigned int len, u32 command) |
168 | { | |
169 | append_cmd(desc, command); | |
e2d4ea94 AV |
170 | if (!(command & (SQIN_RTO | SQIN_PRE))) |
171 | append_ptr(desc, ptr); | |
6ec47334 YK |
172 | append_cmd(desc, len); |
173 | } | |
174 | ||
24a4f14f | 175 | static inline void append_cmd_data(u32 * const desc, void *data, int len, |
8e8ec596 KP |
176 | u32 command) |
177 | { | |
178 | append_cmd(desc, command | IMMEDIATE | len); | |
179 | append_data(desc, data, len); | |
180 | } | |
181 | ||
ae4a825f | 182 | #define APPEND_CMD_RET(cmd, op) \ |
24a4f14f | 183 | static inline u32 *append_##cmd(u32 * const desc, u32 options) \ |
ae4a825f HG |
184 | { \ |
185 | u32 *cmd = desc_end(desc); \ | |
186 | PRINT_POS; \ | |
187 | append_cmd(desc, CMD_##op | options); \ | |
188 | return cmd; \ | |
8e8ec596 | 189 | } |
ae4a825f HG |
190 | APPEND_CMD_RET(jump, JUMP) |
191 | APPEND_CMD_RET(move, MOVE) | |
8e8ec596 | 192 | |
24a4f14f | 193 | static inline void set_jump_tgt_here(u32 * const desc, u32 *jump_cmd) |
8e8ec596 | 194 | { |
261ea058 HG |
195 | *jump_cmd = cpu_to_caam32(caam32_to_cpu(*jump_cmd) | |
196 | (desc_len(desc) - (jump_cmd - desc))); | |
8e8ec596 KP |
197 | } |
198 | ||
24a4f14f | 199 | static inline void set_move_tgt_here(u32 * const desc, u32 *move_cmd) |
ae4a825f | 200 | { |
261ea058 HG |
201 | u32 val = caam32_to_cpu(*move_cmd); |
202 | ||
203 | val &= ~MOVE_OFFSET_MASK; | |
204 | val |= (desc_len(desc) << (MOVE_OFFSET_SHIFT + 2)) & MOVE_OFFSET_MASK; | |
205 | *move_cmd = cpu_to_caam32(val); | |
ae4a825f HG |
206 | } |
207 | ||
8e8ec596 | 208 | #define APPEND_CMD(cmd, op) \ |
24a4f14f | 209 | static inline void append_##cmd(u32 * const desc, u32 options) \ |
8e8ec596 KP |
210 | { \ |
211 | PRINT_POS; \ | |
212 | append_cmd(desc, CMD_##op | options); \ | |
213 | } | |
214 | APPEND_CMD(operation, OPERATION) | |
8e8ec596 KP |
215 | |
216 | #define APPEND_CMD_LEN(cmd, op) \ | |
24a4f14f HG |
217 | static inline void append_##cmd(u32 * const desc, unsigned int len, \ |
218 | u32 options) \ | |
8e8ec596 KP |
219 | { \ |
220 | PRINT_POS; \ | |
221 | append_cmd(desc, CMD_##op | len | options); \ | |
222 | } | |
2b22f6c5 CV |
223 | |
224 | APPEND_CMD_LEN(seq_load, SEQ_LOAD) | |
8e8ec596 KP |
225 | APPEND_CMD_LEN(seq_store, SEQ_STORE) |
226 | APPEND_CMD_LEN(seq_fifo_load, SEQ_FIFO_LOAD) | |
227 | APPEND_CMD_LEN(seq_fifo_store, SEQ_FIFO_STORE) | |
228 | ||
229 | #define APPEND_CMD_PTR(cmd, op) \ | |
24a4f14f HG |
230 | static inline void append_##cmd(u32 * const desc, dma_addr_t ptr, \ |
231 | unsigned int len, u32 options) \ | |
8e8ec596 KP |
232 | { \ |
233 | PRINT_POS; \ | |
234 | append_cmd_ptr(desc, ptr, len, CMD_##op | options); \ | |
235 | } | |
236 | APPEND_CMD_PTR(key, KEY) | |
8e8ec596 | 237 | APPEND_CMD_PTR(load, LOAD) |
8e8ec596 KP |
238 | APPEND_CMD_PTR(fifo_load, FIFO_LOAD) |
239 | APPEND_CMD_PTR(fifo_store, FIFO_STORE) | |
240 | ||
24a4f14f HG |
241 | static inline void append_store(u32 * const desc, dma_addr_t ptr, |
242 | unsigned int len, u32 options) | |
524f1bd9 AV |
243 | { |
244 | u32 cmd_src; | |
245 | ||
246 | cmd_src = options & LDST_SRCDST_MASK; | |
247 | ||
248 | append_cmd(desc, CMD_STORE | options | len); | |
249 | ||
250 | /* The following options do not require pointer */ | |
251 | if (!(cmd_src == LDST_SRCDST_WORD_DESCBUF_SHARED || | |
252 | cmd_src == LDST_SRCDST_WORD_DESCBUF_JOB || | |
253 | cmd_src == LDST_SRCDST_WORD_DESCBUF_JOB_WE || | |
254 | cmd_src == LDST_SRCDST_WORD_DESCBUF_SHARED_WE)) | |
255 | append_ptr(desc, ptr); | |
256 | } | |
257 | ||
6ec47334 | 258 | #define APPEND_SEQ_PTR_INTLEN(cmd, op) \ |
24a4f14f HG |
259 | static inline void append_seq_##cmd##_ptr_intlen(u32 * const desc, \ |
260 | dma_addr_t ptr, \ | |
6ec47334 YK |
261 | unsigned int len, \ |
262 | u32 options) \ | |
263 | { \ | |
264 | PRINT_POS; \ | |
e2d4ea94 AV |
265 | if (options & (SQIN_RTO | SQIN_PRE)) \ |
266 | append_cmd(desc, CMD_SEQ_##op##_PTR | len | options); \ | |
267 | else \ | |
268 | append_cmd_ptr(desc, ptr, len, CMD_SEQ_##op##_PTR | options); \ | |
6ec47334 YK |
269 | } |
270 | APPEND_SEQ_PTR_INTLEN(in, IN) | |
271 | APPEND_SEQ_PTR_INTLEN(out, OUT) | |
272 | ||
8e8ec596 | 273 | #define APPEND_CMD_PTR_TO_IMM(cmd, op) \ |
24a4f14f | 274 | static inline void append_##cmd##_as_imm(u32 * const desc, void *data, \ |
8e8ec596 KP |
275 | unsigned int len, u32 options) \ |
276 | { \ | |
277 | PRINT_POS; \ | |
278 | append_cmd_data(desc, data, len, CMD_##op | options); \ | |
279 | } | |
280 | APPEND_CMD_PTR_TO_IMM(load, LOAD); | |
281 | APPEND_CMD_PTR_TO_IMM(fifo_load, FIFO_LOAD); | |
282 | ||
6ec47334 | 283 | #define APPEND_CMD_PTR_EXTLEN(cmd, op) \ |
24a4f14f | 284 | static inline void append_##cmd##_extlen(u32 * const desc, dma_addr_t ptr, \ |
6ec47334 YK |
285 | unsigned int len, u32 options) \ |
286 | { \ | |
287 | PRINT_POS; \ | |
288 | append_cmd_ptr_extlen(desc, ptr, len, CMD_##op | SQIN_EXT | options); \ | |
289 | } | |
290 | APPEND_CMD_PTR_EXTLEN(seq_in_ptr, SEQ_IN_PTR) | |
291 | APPEND_CMD_PTR_EXTLEN(seq_out_ptr, SEQ_OUT_PTR) | |
292 | ||
293 | /* | |
294 | * Determine whether to store length internally or externally depending on | |
295 | * the size of its type | |
296 | */ | |
297 | #define APPEND_CMD_PTR_LEN(cmd, op, type) \ | |
24a4f14f | 298 | static inline void append_##cmd(u32 * const desc, dma_addr_t ptr, \ |
6ec47334 YK |
299 | type len, u32 options) \ |
300 | { \ | |
301 | PRINT_POS; \ | |
302 | if (sizeof(type) > sizeof(u16)) \ | |
303 | append_##cmd##_extlen(desc, ptr, len, options); \ | |
304 | else \ | |
305 | append_##cmd##_intlen(desc, ptr, len, options); \ | |
306 | } | |
307 | APPEND_CMD_PTR_LEN(seq_in_ptr, SEQ_IN_PTR, u32) | |
308 | APPEND_CMD_PTR_LEN(seq_out_ptr, SEQ_OUT_PTR, u32) | |
309 | ||
8e8ec596 KP |
310 | /* |
311 | * 2nd variant for commands whose specified immediate length differs | |
312 | * from length of immediate data provided, e.g., split keys | |
313 | */ | |
314 | #define APPEND_CMD_PTR_TO_IMM2(cmd, op) \ | |
24a4f14f | 315 | static inline void append_##cmd##_as_imm(u32 * const desc, void *data, \ |
8e8ec596 KP |
316 | unsigned int data_len, \ |
317 | unsigned int len, u32 options) \ | |
318 | { \ | |
319 | PRINT_POS; \ | |
320 | append_cmd(desc, CMD_##op | IMMEDIATE | len | options); \ | |
321 | append_data(desc, data, data_len); \ | |
322 | } | |
323 | APPEND_CMD_PTR_TO_IMM2(key, KEY); | |
324 | ||
325 | #define APPEND_CMD_RAW_IMM(cmd, op, type) \ | |
24a4f14f | 326 | static inline void append_##cmd##_imm_##type(u32 * const desc, type immediate, \ |
8e8ec596 KP |
327 | u32 options) \ |
328 | { \ | |
329 | PRINT_POS; \ | |
330 | append_cmd(desc, CMD_##op | IMMEDIATE | options | sizeof(type)); \ | |
331 | append_cmd(desc, immediate); \ | |
332 | } | |
333 | APPEND_CMD_RAW_IMM(load, LOAD, u32); | |
1acebad3 | 334 | |
5ba1c7b5 CV |
335 | /* |
336 | * ee - endianness | |
337 | * size - size of immediate type in bytes | |
338 | */ | |
339 | #define APPEND_CMD_RAW_IMM2(cmd, op, ee, size) \ | |
340 | static inline void append_##cmd##_imm_##ee##size(u32 *desc, \ | |
341 | u##size immediate, \ | |
342 | u32 options) \ | |
343 | { \ | |
344 | __##ee##size data = cpu_to_##ee##size(immediate); \ | |
345 | PRINT_POS; \ | |
346 | append_cmd(desc, CMD_##op | IMMEDIATE | options | sizeof(data)); \ | |
347 | append_data(desc, &data, sizeof(data)); \ | |
348 | } | |
349 | ||
350 | APPEND_CMD_RAW_IMM2(load, LOAD, be, 32); | |
351 | ||
1acebad3 YK |
352 | /* |
353 | * Append math command. Only the last part of destination and source need to | |
354 | * be specified | |
355 | */ | |
356 | #define APPEND_MATH(op, desc, dest, src_0, src_1, len) \ | |
357 | append_cmd(desc, CMD_MATH | MATH_FUN_##op | MATH_DEST_##dest | \ | |
3ebfa92f | 358 | MATH_SRC0_##src_0 | MATH_SRC1_##src_1 | (u32)len); |
1acebad3 YK |
359 | |
360 | #define append_math_add(desc, dest, src0, src1, len) \ | |
361 | APPEND_MATH(ADD, desc, dest, src0, src1, len) | |
362 | #define append_math_sub(desc, dest, src0, src1, len) \ | |
363 | APPEND_MATH(SUB, desc, dest, src0, src1, len) | |
364 | #define append_math_add_c(desc, dest, src0, src1, len) \ | |
365 | APPEND_MATH(ADDC, desc, dest, src0, src1, len) | |
366 | #define append_math_sub_b(desc, dest, src0, src1, len) \ | |
367 | APPEND_MATH(SUBB, desc, dest, src0, src1, len) | |
368 | #define append_math_and(desc, dest, src0, src1, len) \ | |
369 | APPEND_MATH(AND, desc, dest, src0, src1, len) | |
370 | #define append_math_or(desc, dest, src0, src1, len) \ | |
371 | APPEND_MATH(OR, desc, dest, src0, src1, len) | |
372 | #define append_math_xor(desc, dest, src0, src1, len) \ | |
373 | APPEND_MATH(XOR, desc, dest, src0, src1, len) | |
374 | #define append_math_lshift(desc, dest, src0, src1, len) \ | |
375 | APPEND_MATH(LSHIFT, desc, dest, src0, src1, len) | |
376 | #define append_math_rshift(desc, dest, src0, src1, len) \ | |
377 | APPEND_MATH(RSHIFT, desc, dest, src0, src1, len) | |
d179333b AV |
378 | #define append_math_ldshift(desc, dest, src0, src1, len) \ |
379 | APPEND_MATH(SHLD, desc, dest, src0, src1, len) | |
1acebad3 YK |
380 | |
381 | /* Exactly one source is IMM. Data is passed in as u32 value */ | |
382 | #define APPEND_MATH_IMM_u32(op, desc, dest, src_0, src_1, data) \ | |
383 | do { \ | |
384 | APPEND_MATH(op, desc, dest, src_0, src_1, CAAM_CMD_SZ); \ | |
385 | append_cmd(desc, data); \ | |
ae4a825f | 386 | } while (0) |
1acebad3 YK |
387 | |
388 | #define append_math_add_imm_u32(desc, dest, src0, src1, data) \ | |
389 | APPEND_MATH_IMM_u32(ADD, desc, dest, src0, src1, data) | |
390 | #define append_math_sub_imm_u32(desc, dest, src0, src1, data) \ | |
391 | APPEND_MATH_IMM_u32(SUB, desc, dest, src0, src1, data) | |
392 | #define append_math_add_c_imm_u32(desc, dest, src0, src1, data) \ | |
393 | APPEND_MATH_IMM_u32(ADDC, desc, dest, src0, src1, data) | |
394 | #define append_math_sub_b_imm_u32(desc, dest, src0, src1, data) \ | |
395 | APPEND_MATH_IMM_u32(SUBB, desc, dest, src0, src1, data) | |
396 | #define append_math_and_imm_u32(desc, dest, src0, src1, data) \ | |
397 | APPEND_MATH_IMM_u32(AND, desc, dest, src0, src1, data) | |
398 | #define append_math_or_imm_u32(desc, dest, src0, src1, data) \ | |
399 | APPEND_MATH_IMM_u32(OR, desc, dest, src0, src1, data) | |
400 | #define append_math_xor_imm_u32(desc, dest, src0, src1, data) \ | |
401 | APPEND_MATH_IMM_u32(XOR, desc, dest, src0, src1, data) | |
402 | #define append_math_lshift_imm_u32(desc, dest, src0, src1, data) \ | |
403 | APPEND_MATH_IMM_u32(LSHIFT, desc, dest, src0, src1, data) | |
404 | #define append_math_rshift_imm_u32(desc, dest, src0, src1, data) \ | |
405 | APPEND_MATH_IMM_u32(RSHIFT, desc, dest, src0, src1, data) | |
3ebfa92f AV |
406 | |
407 | /* Exactly one source is IMM. Data is passed in as u64 value */ | |
408 | #define APPEND_MATH_IMM_u64(op, desc, dest, src_0, src_1, data) \ | |
409 | do { \ | |
410 | u32 upper = (data >> 16) >> 16; \ | |
411 | APPEND_MATH(op, desc, dest, src_0, src_1, CAAM_CMD_SZ * 2 | \ | |
412 | (upper ? 0 : MATH_IFB)); \ | |
413 | if (upper) \ | |
414 | append_u64(desc, data); \ | |
415 | else \ | |
c1f2cd21 | 416 | append_u32(desc, lower_32_bits(data)); \ |
3ebfa92f AV |
417 | } while (0) |
418 | ||
419 | #define append_math_add_imm_u64(desc, dest, src0, src1, data) \ | |
420 | APPEND_MATH_IMM_u64(ADD, desc, dest, src0, src1, data) | |
421 | #define append_math_sub_imm_u64(desc, dest, src0, src1, data) \ | |
422 | APPEND_MATH_IMM_u64(SUB, desc, dest, src0, src1, data) | |
423 | #define append_math_add_c_imm_u64(desc, dest, src0, src1, data) \ | |
424 | APPEND_MATH_IMM_u64(ADDC, desc, dest, src0, src1, data) | |
425 | #define append_math_sub_b_imm_u64(desc, dest, src0, src1, data) \ | |
426 | APPEND_MATH_IMM_u64(SUBB, desc, dest, src0, src1, data) | |
427 | #define append_math_and_imm_u64(desc, dest, src0, src1, data) \ | |
428 | APPEND_MATH_IMM_u64(AND, desc, dest, src0, src1, data) | |
429 | #define append_math_or_imm_u64(desc, dest, src0, src1, data) \ | |
430 | APPEND_MATH_IMM_u64(OR, desc, dest, src0, src1, data) | |
431 | #define append_math_xor_imm_u64(desc, dest, src0, src1, data) \ | |
432 | APPEND_MATH_IMM_u64(XOR, desc, dest, src0, src1, data) | |
433 | #define append_math_lshift_imm_u64(desc, dest, src0, src1, data) \ | |
434 | APPEND_MATH_IMM_u64(LSHIFT, desc, dest, src0, src1, data) | |
435 | #define append_math_rshift_imm_u64(desc, dest, src0, src1, data) \ | |
436 | APPEND_MATH_IMM_u64(RSHIFT, desc, dest, src0, src1, data) | |
db57656b HG |
437 | |
438 | /** | |
439 | * struct alginfo - Container for algorithm details | |
440 | * @algtype: algorithm selector; for valid values, see documentation of the | |
441 | * functions where it is used. | |
442 | * @keylen: length of the provided algorithm key, in bytes | |
443 | * @keylen_pad: padded length of the provided algorithm key, in bytes | |
444 | * @key: address where algorithm key resides; virtual address if key_inline | |
445 | * is true, dma (bus) address if key_inline is false. | |
446 | * @key_inline: true - key can be inlined in the descriptor; false - key is | |
447 | * referenced by the descriptor | |
448 | */ | |
449 | struct alginfo { | |
450 | u32 algtype; | |
451 | unsigned int keylen; | |
452 | unsigned int keylen_pad; | |
9c0bc511 AB |
453 | union { |
454 | dma_addr_t key_dma; | |
455 | void *key_virt; | |
456 | }; | |
db57656b HG |
457 | bool key_inline; |
458 | }; | |
4cbe79cc HG |
459 | |
460 | /** | |
461 | * desc_inline_query() - Provide indications on which data items can be inlined | |
462 | * and which shall be referenced in a shared descriptor. | |
463 | * @sd_base_len: Shared descriptor base length - bytes consumed by the commands, | |
464 | * excluding the data items to be inlined (or corresponding | |
465 | * pointer if an item is not inlined). Each cnstr_* function that | |
466 | * generates descriptors should have a define mentioning | |
467 | * corresponding length. | |
468 | * @jd_len: Maximum length of the job descriptor(s) that will be used | |
469 | * together with the shared descriptor. | |
470 | * @data_len: Array of lengths of the data items trying to be inlined | |
471 | * @inl_mask: 32bit mask with bit x = 1 if data item x can be inlined, 0 | |
472 | * otherwise. | |
473 | * @count: Number of data items (size of @data_len array); must be <= 32 | |
474 | * | |
475 | * Return: 0 if data can be inlined / referenced, negative value if not. If 0, | |
476 | * check @inl_mask for details. | |
477 | */ | |
478 | static inline int desc_inline_query(unsigned int sd_base_len, | |
479 | unsigned int jd_len, unsigned int *data_len, | |
480 | u32 *inl_mask, unsigned int count) | |
481 | { | |
482 | int rem_bytes = (int)(CAAM_DESC_BYTES_MAX - sd_base_len - jd_len); | |
483 | unsigned int i; | |
484 | ||
485 | *inl_mask = 0; | |
486 | for (i = 0; (i < count) && (rem_bytes > 0); i++) { | |
487 | if (rem_bytes - (int)(data_len[i] + | |
488 | (count - i - 1) * CAAM_PTR_SZ) >= 0) { | |
489 | rem_bytes -= data_len[i]; | |
490 | *inl_mask |= (1 << i); | |
491 | } else { | |
492 | rem_bytes -= CAAM_PTR_SZ; | |
493 | } | |
494 | } | |
495 | ||
496 | return (rem_bytes >= 0) ? 0 : -1; | |
497 | } | |
cd373691 HG |
498 | |
499 | #endif /* DESC_CONSTR_H */ |