1 // SPDX-License-Identifier: (GPL-2.0-only OR B 1
2 //
3 // This file is provided under a dual BSD/GPLv
4 // redistributing this file, you may do so und
5 //
6 // Copyright(c) 2018 Intel Corporation
7 //
8 // Author: Liam Girdwood <liam.r.girdwood@linu
9 //
10
11 #include <linux/pci.h>
12 #include "ops.h"
13
14 static
15 bool snd_sof_pci_update_bits_unlocked(struct s
16 u32 mask
17 {
18 struct pci_dev *pci = to_pci_dev(sdev-
19 unsigned int old, new;
20 u32 ret = 0;
21
22 pci_read_config_dword(pci, offset, &re
23 old = ret;
24 dev_dbg(sdev->dev, "Debug PCIR: %8.8x
25
26 new = (old & ~mask) | (value & mask);
27
28 if (old == new)
29 return false;
30
31 pci_write_config_dword(pci, offset, ne
32 dev_dbg(sdev->dev, "Debug PCIW: %8.8x
33 offset);
34
35 return true;
36 }
37
38 bool snd_sof_pci_update_bits(struct snd_sof_de
39 u32 mask, u32 val
40 {
41 unsigned long flags;
42 bool change;
43
44 spin_lock_irqsave(&sdev->hw_lock, flag
45 change = snd_sof_pci_update_bits_unloc
46 spin_unlock_irqrestore(&sdev->hw_lock,
47 return change;
48 }
49 EXPORT_SYMBOL(snd_sof_pci_update_bits);
50
51 bool snd_sof_dsp_update_bits_unlocked(struct s
52 u32 offs
53 {
54 unsigned int old, new;
55 u32 ret;
56
57 ret = snd_sof_dsp_read(sdev, bar, offs
58
59 old = ret;
60 new = (old & ~mask) | (value & mask);
61
62 if (old == new)
63 return false;
64
65 snd_sof_dsp_write(sdev, bar, offset, n
66
67 return true;
68 }
69 EXPORT_SYMBOL(snd_sof_dsp_update_bits_unlocked
70
71 bool snd_sof_dsp_update_bits64_unlocked(struct
72 u32 of
73 {
74 u64 old, new;
75
76 old = snd_sof_dsp_read64(sdev, bar, of
77
78 new = (old & ~mask) | (value & mask);
79
80 if (old == new)
81 return false;
82
83 snd_sof_dsp_write64(sdev, bar, offset,
84
85 return true;
86 }
87 EXPORT_SYMBOL(snd_sof_dsp_update_bits64_unlock
88
89 /* This is for registers bits with attribute R
90 bool snd_sof_dsp_update_bits(struct snd_sof_de
91 u32 mask, u32 val
92 {
93 unsigned long flags;
94 bool change;
95
96 spin_lock_irqsave(&sdev->hw_lock, flag
97 change = snd_sof_dsp_update_bits_unloc
98
99 spin_unlock_irqrestore(&sdev->hw_lock,
100 return change;
101 }
102 EXPORT_SYMBOL(snd_sof_dsp_update_bits);
103
104 bool snd_sof_dsp_update_bits64(struct snd_sof_
105 u64 mask, u64 v
106 {
107 unsigned long flags;
108 bool change;
109
110 spin_lock_irqsave(&sdev->hw_lock, flag
111 change = snd_sof_dsp_update_bits64_unl
112
113 spin_unlock_irqrestore(&sdev->hw_lock,
114 return change;
115 }
116 EXPORT_SYMBOL(snd_sof_dsp_update_bits64);
117
118 static
119 void snd_sof_dsp_update_bits_forced_unlocked(s
120 u
121 {
122 unsigned int old, new;
123 u32 ret;
124
125 ret = snd_sof_dsp_read(sdev, bar, offs
126
127 old = ret;
128 new = (old & ~mask) | (value & mask);
129
130 snd_sof_dsp_write(sdev, bar, offset, n
131 }
132
133 /* This is for registers bits with attribute R
134 void snd_sof_dsp_update_bits_forced(struct snd
135 u32 offset
136 {
137 unsigned long flags;
138
139 spin_lock_irqsave(&sdev->hw_lock, flag
140 snd_sof_dsp_update_bits_forced_unlocke
141 spin_unlock_irqrestore(&sdev->hw_lock,
142 }
143 EXPORT_SYMBOL(snd_sof_dsp_update_bits_forced);
144
145 /**
146 * snd_sof_dsp_panic - handle a received DSP p
147 * @sdev: Pointer to the device's sdev
148 * @offset: offset of panic information
149 * @non_recoverable: the panic is fatal, no re
150 */
151 void snd_sof_dsp_panic(struct snd_sof_dev *sde
152 {
153 /*
154 * if DSP is not ready and the dsp_oop
155 * offset from the panic message.
156 */
157 if (!sdev->dsp_oops_offset)
158 sdev->dsp_oops_offset = offset
159
160 /*
161 * Print warning if the offset from th
162 * dsp_oops_offset
163 */
164 if (sdev->dsp_oops_offset != offset)
165 dev_warn(sdev->dev,
166 "%s: dsp_oops_offset
167 __func__, sdev->dsp_o
168
169 /*
170 * Set the fw_state to crashed only in
171 * event.
172 * Use different message within the sn
173 * the non_recoverable flag.
174 */
175 sdev->dbg_dump_printed = false;
176 if (non_recoverable) {
177 snd_sof_dsp_dbg_dump(sdev, "DS
178 SOF_DBG_D
179 sof_set_fw_state(sdev, SOF_FW_
180 sof_fw_trace_fw_crashed(sdev);
181 } else {
182 snd_sof_dsp_dbg_dump(sdev,
183 "DSP pani
184 SOF_DBG_D
185 }
186 }
187 EXPORT_SYMBOL(snd_sof_dsp_panic);
188
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