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2024-12-19 9370bb92b2d16684ee45cf24e879c93c509162da 
 kernel/sound/soc/intel/common/sst-dsp.c
....@@ -1,17 +1,8 @@
1
+// SPDX-License-Identifier: GPL-2.0-only
12 /*
23  * Intel Smart Sound Technology (SST) DSP Core Driver
34  *
45  * Copyright (C) 2013, Intel Corporation. All rights reserved.
5
- *
6
- * This program is free software; you can redistribute it and/or
7
- * modify it under the terms of the GNU General Public License version
8
- * 2 as published by the Free Software Foundation.
9
- *
10
- * This program is distributed in the hope that it will be useful,
11
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
12
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13
- * GNU General Public License for more details.
14
- *
156  */
167 
178 #include <linux/slab.h>
....@@ -19,7 +10,7 @@
1910 #include <linux/interrupt.h>
2011 #include <linux/module.h>
2112 #include <linux/platform_device.h>
22
-#include <linux/io.h>
13
+#include <linux/io-64-nonatomic-lo-hi.h>
2314 #include <linux/delay.h>
2415 
2516 #include "sst-dsp.h"
....@@ -43,50 +34,15 @@
4334 
4435 void sst_shim32_write64(void __iomem *addr, u32 offset, u64 value)
4536 {
46
-	memcpy_toio(addr + offset, &value, sizeof(value));
37
+	writeq(value, addr + offset);
4738 }
4839 EXPORT_SYMBOL_GPL(sst_shim32_write64);
4940 
5041 u64 sst_shim32_read64(void __iomem *addr, u32 offset)
5142 {
52
-	u64 val;
53
-
54
-	memcpy_fromio(&val, addr + offset, sizeof(val));
55
-	return val;
43
+	return readq(addr + offset);
5644 }
5745 EXPORT_SYMBOL_GPL(sst_shim32_read64);
58
-
59
-static inline void _sst_memcpy_toio_32(volatile u32 __iomem *dest,
60
-	u32 *src, size_t bytes)
61
-{
62
-	int i, words = bytes >> 2;
63
-
64
-	for (i = 0; i < words; i++)
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-		writel(src[i], dest + i);
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-}
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-
68
-static inline void _sst_memcpy_fromio_32(u32 *dest,
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-	const volatile __iomem u32 *src, size_t bytes)
70
-{
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-	int i, words = bytes >> 2;
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-
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-	for (i = 0; i < words; i++)
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-		dest[i] = readl(src + i);
75
-}
76
-
77
-void sst_memcpy_toio_32(struct sst_dsp *sst,
78
-	void __iomem *dest, void *src, size_t bytes)
79
-{
80
-	_sst_memcpy_toio_32(dest, src, bytes);
81
-}
82
-EXPORT_SYMBOL_GPL(sst_memcpy_toio_32);
83
-
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-void sst_memcpy_fromio_32(struct sst_dsp *sst, void *dest,
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-	void __iomem *src, size_t bytes)
86
-{
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-	_sst_memcpy_fromio_32(dest, src, bytes);
88
-}
89
-EXPORT_SYMBOL_GPL(sst_memcpy_fromio_32);
9046 
9147 /* Public API */
9248 void sst_dsp_shim_write(struct sst_dsp *sst, u32 offset, u32 value)
....@@ -112,29 +68,6 @@
11268 }
11369 EXPORT_SYMBOL_GPL(sst_dsp_shim_read);
11470 
115
-void sst_dsp_shim_write64(struct sst_dsp *sst, u32 offset, u64 value)
116
-{
117
-	unsigned long flags;
118
-
119
-	spin_lock_irqsave(&sst->spinlock, flags);
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-	sst->ops->write64(sst->addr.shim, offset, value);
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-	spin_unlock_irqrestore(&sst->spinlock, flags);
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-}
123
-EXPORT_SYMBOL_GPL(sst_dsp_shim_write64);
124
-
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-u64 sst_dsp_shim_read64(struct sst_dsp *sst, u32 offset)
126
-{
127
-	unsigned long flags;
128
-	u64 val;
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-
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-	spin_lock_irqsave(&sst->spinlock, flags);
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-	val = sst->ops->read64(sst->addr.shim, offset);
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-	spin_unlock_irqrestore(&sst->spinlock, flags);
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-
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-	return val;
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-}
136
-EXPORT_SYMBOL_GPL(sst_dsp_shim_read64);
137
-
13871 void sst_dsp_shim_write_unlocked(struct sst_dsp *sst, u32 offset, u32 value)
13972 {
14073 	sst->ops->write(sst->addr.shim, offset, value);
....@@ -146,18 +79,6 @@
14679 	return sst->ops->read(sst->addr.shim, offset);
14780 }
14881 EXPORT_SYMBOL_GPL(sst_dsp_shim_read_unlocked);
149
-
150
-void sst_dsp_shim_write64_unlocked(struct sst_dsp *sst, u32 offset, u64 value)
151
-{
152
-	sst->ops->write64(sst->addr.shim, offset, value);
153
-}
154
-EXPORT_SYMBOL_GPL(sst_dsp_shim_write64_unlocked);
155
-
156
-u64 sst_dsp_shim_read64_unlocked(struct sst_dsp *sst, u32 offset)
157
-{
158
-	return sst->ops->read64(sst->addr.shim, offset);
159
-}
160
-EXPORT_SYMBOL_GPL(sst_dsp_shim_read64_unlocked);
16182 
16283 int sst_dsp_shim_update_bits_unlocked(struct sst_dsp *sst, u32 offset,
16384 				u32 mask, u32 value)
....@@ -178,24 +99,6 @@
17899 	return change;
179100 }
180101 EXPORT_SYMBOL_GPL(sst_dsp_shim_update_bits_unlocked);
181
-
182
-int sst_dsp_shim_update_bits64_unlocked(struct sst_dsp *sst, u32 offset,
183
-				u64 mask, u64 value)
184
-{
185
-	bool change;
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-	u64 old, new;
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-
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-	old = sst_dsp_shim_read64_unlocked(sst, offset);
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-
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-	new = (old & (~mask)) | (value & mask);
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-
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-	change = (old != new);
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-	if (change)
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-		sst_dsp_shim_write64_unlocked(sst, offset, new);
195
-
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-	return change;
197
-}
198
-EXPORT_SYMBOL_GPL(sst_dsp_shim_update_bits64_unlocked);
199102 
200103 /* This is for registers bits with attribute RWC */
201104 void sst_dsp_shim_update_bits_forced_unlocked(struct sst_dsp *sst, u32 offset,
....@@ -225,19 +128,6 @@
225128 	return change;
226129 }
227130 EXPORT_SYMBOL_GPL(sst_dsp_shim_update_bits);
228
-
229
-int sst_dsp_shim_update_bits64(struct sst_dsp *sst, u32 offset,
230
-				u64 mask, u64 value)
231
-{
232
-	unsigned long flags;
233
-	bool change;
234
-
235
-	spin_lock_irqsave(&sst->spinlock, flags);
236
-	change = sst_dsp_shim_update_bits64_unlocked(sst, offset, mask, value);
237
-	spin_unlock_irqrestore(&sst->spinlock, flags);
238
-	return change;
239
-}
240
-EXPORT_SYMBOL_GPL(sst_dsp_shim_update_bits64);
241131 
242132 /* This is for registers bits with attribute RWC */
243133 void sst_dsp_shim_update_bits_forced(struct sst_dsp *sst, u32 offset,
....@@ -290,70 +180,6 @@
290180 	return -ETIME;
291181 }
292182 EXPORT_SYMBOL_GPL(sst_dsp_register_poll);
293
-
294
-void sst_dsp_dump(struct sst_dsp *sst)
295
-{
296
-	if (sst->ops->dump)
297
-		sst->ops->dump(sst);
298
-}
299
-EXPORT_SYMBOL_GPL(sst_dsp_dump);
300
-
301
-void sst_dsp_reset(struct sst_dsp *sst)
302
-{
303
-	if (sst->ops->reset)
304
-		sst->ops->reset(sst);
305
-}
306
-EXPORT_SYMBOL_GPL(sst_dsp_reset);
307
-
308
-int sst_dsp_boot(struct sst_dsp *sst)
309
-{
310
-	if (sst->ops->boot)
311
-		sst->ops->boot(sst);
312
-
313
-	return 0;
314
-}
315
-EXPORT_SYMBOL_GPL(sst_dsp_boot);
316
-
317
-int sst_dsp_wake(struct sst_dsp *sst)
318
-{
319
-	if (sst->ops->wake)
320
-		return sst->ops->wake(sst);
321
-
322
-	return 0;
323
-}
324
-EXPORT_SYMBOL_GPL(sst_dsp_wake);
325
-
326
-void sst_dsp_sleep(struct sst_dsp *sst)
327
-{
328
-	if (sst->ops->sleep)
329
-		sst->ops->sleep(sst);
330
-}
331
-EXPORT_SYMBOL_GPL(sst_dsp_sleep);
332
-
333
-void sst_dsp_stall(struct sst_dsp *sst)
334
-{
335
-	if (sst->ops->stall)
336
-		sst->ops->stall(sst);
337
-}
338
-EXPORT_SYMBOL_GPL(sst_dsp_stall);
339
-
340
-void sst_dsp_ipc_msg_tx(struct sst_dsp *dsp, u32 msg)
341
-{
342
-	sst_dsp_shim_write_unlocked(dsp, SST_IPCX, msg | SST_IPCX_BUSY);
343
-	trace_sst_ipc_msg_tx(msg);
344
-}
345
-EXPORT_SYMBOL_GPL(sst_dsp_ipc_msg_tx);
346
-
347
-u32 sst_dsp_ipc_msg_rx(struct sst_dsp *dsp)
348
-{
349
-	u32 msg;
350
-
351
-	msg = sst_dsp_shim_read_unlocked(dsp, SST_IPCX);
352
-	trace_sst_ipc_msg_rx(msg);
353
-
354
-	return msg;
355
-}
356
-EXPORT_SYMBOL_GPL(sst_dsp_ipc_msg_rx);
357183 
358184 int sst_dsp_mailbox_init(struct sst_dsp *sst, u32 inbox_offset, size_t inbox_size,
359185 	u32 outbox_offset, size_t outbox_size)