This source file includes following definitions.
- sst_shim32_write
- sst_shim32_read
- sst_shim32_write64
- sst_shim32_read64
- _sst_memcpy_toio_32
- _sst_memcpy_fromio_32
- sst_memcpy_toio_32
- sst_memcpy_fromio_32
- sst_dsp_shim_write
- sst_dsp_shim_read
- sst_dsp_shim_write64
- sst_dsp_shim_read64
- sst_dsp_shim_write_unlocked
- sst_dsp_shim_read_unlocked
- sst_dsp_shim_write64_unlocked
- sst_dsp_shim_read64_unlocked
- sst_dsp_shim_update_bits_unlocked
- sst_dsp_shim_update_bits64_unlocked
- sst_dsp_shim_update_bits_forced_unlocked
- sst_dsp_shim_update_bits
- sst_dsp_shim_update_bits64
- sst_dsp_shim_update_bits_forced
- sst_dsp_register_poll
- sst_dsp_dump
- sst_dsp_reset
- sst_dsp_boot
- sst_dsp_wake
- sst_dsp_sleep
- sst_dsp_stall
- sst_dsp_ipc_msg_tx
- sst_dsp_ipc_msg_rx
- sst_dsp_mailbox_init
- sst_dsp_outbox_write
- sst_dsp_outbox_read
- sst_dsp_inbox_write
- sst_dsp_inbox_read
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8 #include <linux/slab.h>
9 #include <linux/export.h>
10 #include <linux/interrupt.h>
11 #include <linux/module.h>
12 #include <linux/platform_device.h>
13 #include <linux/io.h>
14 #include <linux/delay.h>
15
16 #include "sst-dsp.h"
17 #include "sst-dsp-priv.h"
18
19 #define CREATE_TRACE_POINTS
20 #include <trace/events/intel-sst.h>
21
22
23 void sst_shim32_write(void __iomem *addr, u32 offset, u32 value)
24 {
25 writel(value, addr + offset);
26 }
27 EXPORT_SYMBOL_GPL(sst_shim32_write);
28
29 u32 sst_shim32_read(void __iomem *addr, u32 offset)
30 {
31 return readl(addr + offset);
32 }
33 EXPORT_SYMBOL_GPL(sst_shim32_read);
34
35 void sst_shim32_write64(void __iomem *addr, u32 offset, u64 value)
36 {
37 memcpy_toio(addr + offset, &value, sizeof(value));
38 }
39 EXPORT_SYMBOL_GPL(sst_shim32_write64);
40
41 u64 sst_shim32_read64(void __iomem *addr, u32 offset)
42 {
43 u64 val;
44
45 memcpy_fromio(&val, addr + offset, sizeof(val));
46 return val;
47 }
48 EXPORT_SYMBOL_GPL(sst_shim32_read64);
49
50 static inline void _sst_memcpy_toio_32(volatile u32 __iomem *dest,
51 u32 *src, size_t bytes)
52 {
53 int i, words = bytes >> 2;
54
55 for (i = 0; i < words; i++)
56 writel(src[i], dest + i);
57 }
58
59 static inline void _sst_memcpy_fromio_32(u32 *dest,
60 const volatile __iomem u32 *src, size_t bytes)
61 {
62 int i, words = bytes >> 2;
63
64 for (i = 0; i < words; i++)
65 dest[i] = readl(src + i);
66 }
67
68 void sst_memcpy_toio_32(struct sst_dsp *sst,
69 void __iomem *dest, void *src, size_t bytes)
70 {
71 _sst_memcpy_toio_32(dest, src, bytes);
72 }
73 EXPORT_SYMBOL_GPL(sst_memcpy_toio_32);
74
75 void sst_memcpy_fromio_32(struct sst_dsp *sst, void *dest,
76 void __iomem *src, size_t bytes)
77 {
78 _sst_memcpy_fromio_32(dest, src, bytes);
79 }
80 EXPORT_SYMBOL_GPL(sst_memcpy_fromio_32);
81
82
83 void sst_dsp_shim_write(struct sst_dsp *sst, u32 offset, u32 value)
84 {
85 unsigned long flags;
86
87 spin_lock_irqsave(&sst->spinlock, flags);
88 sst->ops->write(sst->addr.shim, offset, value);
89 spin_unlock_irqrestore(&sst->spinlock, flags);
90 }
91 EXPORT_SYMBOL_GPL(sst_dsp_shim_write);
92
93 u32 sst_dsp_shim_read(struct sst_dsp *sst, u32 offset)
94 {
95 unsigned long flags;
96 u32 val;
97
98 spin_lock_irqsave(&sst->spinlock, flags);
99 val = sst->ops->read(sst->addr.shim, offset);
100 spin_unlock_irqrestore(&sst->spinlock, flags);
101
102 return val;
103 }
104 EXPORT_SYMBOL_GPL(sst_dsp_shim_read);
105
106 void sst_dsp_shim_write64(struct sst_dsp *sst, u32 offset, u64 value)
107 {
108 unsigned long flags;
109
110 spin_lock_irqsave(&sst->spinlock, flags);
111 sst->ops->write64(sst->addr.shim, offset, value);
112 spin_unlock_irqrestore(&sst->spinlock, flags);
113 }
114 EXPORT_SYMBOL_GPL(sst_dsp_shim_write64);
115
116 u64 sst_dsp_shim_read64(struct sst_dsp *sst, u32 offset)
117 {
118 unsigned long flags;
119 u64 val;
120
121 spin_lock_irqsave(&sst->spinlock, flags);
122 val = sst->ops->read64(sst->addr.shim, offset);
123 spin_unlock_irqrestore(&sst->spinlock, flags);
124
125 return val;
126 }
127 EXPORT_SYMBOL_GPL(sst_dsp_shim_read64);
128
129 void sst_dsp_shim_write_unlocked(struct sst_dsp *sst, u32 offset, u32 value)
130 {
131 sst->ops->write(sst->addr.shim, offset, value);
132 }
133 EXPORT_SYMBOL_GPL(sst_dsp_shim_write_unlocked);
134
135 u32 sst_dsp_shim_read_unlocked(struct sst_dsp *sst, u32 offset)
136 {
137 return sst->ops->read(sst->addr.shim, offset);
138 }
139 EXPORT_SYMBOL_GPL(sst_dsp_shim_read_unlocked);
140
141 void sst_dsp_shim_write64_unlocked(struct sst_dsp *sst, u32 offset, u64 value)
142 {
143 sst->ops->write64(sst->addr.shim, offset, value);
144 }
145 EXPORT_SYMBOL_GPL(sst_dsp_shim_write64_unlocked);
146
147 u64 sst_dsp_shim_read64_unlocked(struct sst_dsp *sst, u32 offset)
148 {
149 return sst->ops->read64(sst->addr.shim, offset);
150 }
151 EXPORT_SYMBOL_GPL(sst_dsp_shim_read64_unlocked);
152
153 int sst_dsp_shim_update_bits_unlocked(struct sst_dsp *sst, u32 offset,
154 u32 mask, u32 value)
155 {
156 bool change;
157 unsigned int old, new;
158 u32 ret;
159
160 ret = sst_dsp_shim_read_unlocked(sst, offset);
161
162 old = ret;
163 new = (old & (~mask)) | (value & mask);
164
165 change = (old != new);
166 if (change)
167 sst_dsp_shim_write_unlocked(sst, offset, new);
168
169 return change;
170 }
171 EXPORT_SYMBOL_GPL(sst_dsp_shim_update_bits_unlocked);
172
173 int sst_dsp_shim_update_bits64_unlocked(struct sst_dsp *sst, u32 offset,
174 u64 mask, u64 value)
175 {
176 bool change;
177 u64 old, new;
178
179 old = sst_dsp_shim_read64_unlocked(sst, offset);
180
181 new = (old & (~mask)) | (value & mask);
182
183 change = (old != new);
184 if (change)
185 sst_dsp_shim_write64_unlocked(sst, offset, new);
186
187 return change;
188 }
189 EXPORT_SYMBOL_GPL(sst_dsp_shim_update_bits64_unlocked);
190
191
192 void sst_dsp_shim_update_bits_forced_unlocked(struct sst_dsp *sst, u32 offset,
193 u32 mask, u32 value)
194 {
195 unsigned int old, new;
196 u32 ret;
197
198 ret = sst_dsp_shim_read_unlocked(sst, offset);
199
200 old = ret;
201 new = (old & (~mask)) | (value & mask);
202
203 sst_dsp_shim_write_unlocked(sst, offset, new);
204 }
205 EXPORT_SYMBOL_GPL(sst_dsp_shim_update_bits_forced_unlocked);
206
207 int sst_dsp_shim_update_bits(struct sst_dsp *sst, u32 offset,
208 u32 mask, u32 value)
209 {
210 unsigned long flags;
211 bool change;
212
213 spin_lock_irqsave(&sst->spinlock, flags);
214 change = sst_dsp_shim_update_bits_unlocked(sst, offset, mask, value);
215 spin_unlock_irqrestore(&sst->spinlock, flags);
216 return change;
217 }
218 EXPORT_SYMBOL_GPL(sst_dsp_shim_update_bits);
219
220 int sst_dsp_shim_update_bits64(struct sst_dsp *sst, u32 offset,
221 u64 mask, u64 value)
222 {
223 unsigned long flags;
224 bool change;
225
226 spin_lock_irqsave(&sst->spinlock, flags);
227 change = sst_dsp_shim_update_bits64_unlocked(sst, offset, mask, value);
228 spin_unlock_irqrestore(&sst->spinlock, flags);
229 return change;
230 }
231 EXPORT_SYMBOL_GPL(sst_dsp_shim_update_bits64);
232
233
234 void sst_dsp_shim_update_bits_forced(struct sst_dsp *sst, u32 offset,
235 u32 mask, u32 value)
236 {
237 unsigned long flags;
238
239 spin_lock_irqsave(&sst->spinlock, flags);
240 sst_dsp_shim_update_bits_forced_unlocked(sst, offset, mask, value);
241 spin_unlock_irqrestore(&sst->spinlock, flags);
242 }
243 EXPORT_SYMBOL_GPL(sst_dsp_shim_update_bits_forced);
244
245 int sst_dsp_register_poll(struct sst_dsp *ctx, u32 offset, u32 mask,
246 u32 target, u32 time, char *operation)
247 {
248 u32 reg;
249 unsigned long timeout;
250 int k = 0, s = 500;
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261
262 timeout = jiffies + msecs_to_jiffies(time);
263 while ((((reg = sst_dsp_shim_read_unlocked(ctx, offset)) & mask) != target)
264 && time_before(jiffies, timeout)) {
265 k++;
266 if (k > 10)
267 s = 5000;
268
269 usleep_range(s, 2*s);
270 }
271
272 if ((reg & mask) == target) {
273 dev_dbg(ctx->dev, "FW Poll Status: reg=%#x %s successful\n",
274 reg, operation);
275
276 return 0;
277 }
278
279 dev_dbg(ctx->dev, "FW Poll Status: reg=%#x %s timedout\n",
280 reg, operation);
281 return -ETIME;
282 }
283 EXPORT_SYMBOL_GPL(sst_dsp_register_poll);
284
285 void sst_dsp_dump(struct sst_dsp *sst)
286 {
287 if (sst->ops->dump)
288 sst->ops->dump(sst);
289 }
290 EXPORT_SYMBOL_GPL(sst_dsp_dump);
291
292 void sst_dsp_reset(struct sst_dsp *sst)
293 {
294 if (sst->ops->reset)
295 sst->ops->reset(sst);
296 }
297 EXPORT_SYMBOL_GPL(sst_dsp_reset);
298
299 int sst_dsp_boot(struct sst_dsp *sst)
300 {
301 if (sst->ops->boot)
302 sst->ops->boot(sst);
303
304 return 0;
305 }
306 EXPORT_SYMBOL_GPL(sst_dsp_boot);
307
308 int sst_dsp_wake(struct sst_dsp *sst)
309 {
310 if (sst->ops->wake)
311 return sst->ops->wake(sst);
312
313 return 0;
314 }
315 EXPORT_SYMBOL_GPL(sst_dsp_wake);
316
317 void sst_dsp_sleep(struct sst_dsp *sst)
318 {
319 if (sst->ops->sleep)
320 sst->ops->sleep(sst);
321 }
322 EXPORT_SYMBOL_GPL(sst_dsp_sleep);
323
324 void sst_dsp_stall(struct sst_dsp *sst)
325 {
326 if (sst->ops->stall)
327 sst->ops->stall(sst);
328 }
329 EXPORT_SYMBOL_GPL(sst_dsp_stall);
330
331 void sst_dsp_ipc_msg_tx(struct sst_dsp *dsp, u32 msg)
332 {
333 sst_dsp_shim_write_unlocked(dsp, SST_IPCX, msg | SST_IPCX_BUSY);
334 trace_sst_ipc_msg_tx(msg);
335 }
336 EXPORT_SYMBOL_GPL(sst_dsp_ipc_msg_tx);
337
338 u32 sst_dsp_ipc_msg_rx(struct sst_dsp *dsp)
339 {
340 u32 msg;
341
342 msg = sst_dsp_shim_read_unlocked(dsp, SST_IPCX);
343 trace_sst_ipc_msg_rx(msg);
344
345 return msg;
346 }
347 EXPORT_SYMBOL_GPL(sst_dsp_ipc_msg_rx);
348
349 int sst_dsp_mailbox_init(struct sst_dsp *sst, u32 inbox_offset, size_t inbox_size,
350 u32 outbox_offset, size_t outbox_size)
351 {
352 sst->mailbox.in_base = sst->addr.lpe + inbox_offset;
353 sst->mailbox.out_base = sst->addr.lpe + outbox_offset;
354 sst->mailbox.in_size = inbox_size;
355 sst->mailbox.out_size = outbox_size;
356 return 0;
357 }
358 EXPORT_SYMBOL_GPL(sst_dsp_mailbox_init);
359
360 void sst_dsp_outbox_write(struct sst_dsp *sst, void *message, size_t bytes)
361 {
362 u32 i;
363
364 trace_sst_ipc_outbox_write(bytes);
365
366 memcpy_toio(sst->mailbox.out_base, message, bytes);
367
368 for (i = 0; i < bytes; i += 4)
369 trace_sst_ipc_outbox_wdata(i, *(u32 *)(message + i));
370 }
371 EXPORT_SYMBOL_GPL(sst_dsp_outbox_write);
372
373 void sst_dsp_outbox_read(struct sst_dsp *sst, void *message, size_t bytes)
374 {
375 u32 i;
376
377 trace_sst_ipc_outbox_read(bytes);
378
379 memcpy_fromio(message, sst->mailbox.out_base, bytes);
380
381 for (i = 0; i < bytes; i += 4)
382 trace_sst_ipc_outbox_rdata(i, *(u32 *)(message + i));
383 }
384 EXPORT_SYMBOL_GPL(sst_dsp_outbox_read);
385
386 void sst_dsp_inbox_write(struct sst_dsp *sst, void *message, size_t bytes)
387 {
388 u32 i;
389
390 trace_sst_ipc_inbox_write(bytes);
391
392 memcpy_toio(sst->mailbox.in_base, message, bytes);
393
394 for (i = 0; i < bytes; i += 4)
395 trace_sst_ipc_inbox_wdata(i, *(u32 *)(message + i));
396 }
397 EXPORT_SYMBOL_GPL(sst_dsp_inbox_write);
398
399 void sst_dsp_inbox_read(struct sst_dsp *sst, void *message, size_t bytes)
400 {
401 u32 i;
402
403 trace_sst_ipc_inbox_read(bytes);
404
405 memcpy_fromio(message, sst->mailbox.in_base, bytes);
406
407 for (i = 0; i < bytes; i += 4)
408 trace_sst_ipc_inbox_rdata(i, *(u32 *)(message + i));
409 }
410 EXPORT_SYMBOL_GPL(sst_dsp_inbox_read);
411
412
413 MODULE_AUTHOR("Liam Girdwood");
414 MODULE_DESCRIPTION("Intel SST Core");
415 MODULE_LICENSE("GPL v2");