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) 2021 Advanced Micro Devices, I
7 //
8 // Authors: Ajit Kumar Pandey <AjitKumar.Pande
9
10 /*
11 * Hardware interface for generic AMD audio DS
12 */
13
14 #include "../ops.h"
15 #include "acp-dsp-offset.h"
16 #include "acp.h"
17
18 #define PTE_GRP1_OFFSET 0x00000000
19 #define PTE_GRP2_OFFSET 0x00800000
20 #define PTE_GRP3_OFFSET 0x01000000
21 #define PTE_GRP4_OFFSET 0x01800000
22 #define PTE_GRP5_OFFSET 0x02000000
23 #define PTE_GRP6_OFFSET 0x02800000
24 #define PTE_GRP7_OFFSET 0x03000000
25 #define PTE_GRP8_OFFSET 0x03800000
26
27 int acp_dsp_stream_config(struct snd_sof_dev *
28 {
29 const struct sof_amd_acp_desc *desc =
30 unsigned int pte_reg, pte_size, phy_ad
31 int stream_tag = stream->stream_tag;
32 u32 low, high, offset, reg_val;
33 dma_addr_t addr;
34 int page_idx;
35
36 switch (stream_tag) {
37 case 1:
38 pte_reg = ACPAXI2AXI_ATU_BASE_
39 pte_size = ACPAXI2AXI_ATU_PAGE
40 offset = offsetof(struct scrat
41 stream->reg_offset = PTE_GRP1_
42 break;
43 case 2:
44 pte_reg = ACPAXI2AXI_ATU_BASE_
45 pte_size = ACPAXI2AXI_ATU_PAGE
46 offset = offsetof(struct scrat
47 stream->reg_offset = PTE_GRP2_
48 break;
49 case 3:
50 pte_reg = ACPAXI2AXI_ATU_BASE_
51 pte_size = ACPAXI2AXI_ATU_PAGE
52 offset = offsetof(struct scrat
53 stream->reg_offset = PTE_GRP3_
54 break;
55 case 4:
56 pte_reg = ACPAXI2AXI_ATU_BASE_
57 pte_size = ACPAXI2AXI_ATU_PAGE
58 offset = offsetof(struct scrat
59 stream->reg_offset = PTE_GRP4_
60 break;
61 case 5:
62 pte_reg = ACPAXI2AXI_ATU_BASE_
63 pte_size = ACPAXI2AXI_ATU_PAGE
64 offset = offsetof(struct scrat
65 stream->reg_offset = PTE_GRP5_
66 break;
67 case 6:
68 pte_reg = ACPAXI2AXI_ATU_BASE_
69 pte_size = ACPAXI2AXI_ATU_PAGE
70 offset = offsetof(struct scrat
71 stream->reg_offset = PTE_GRP6_
72 break;
73 case 7:
74 pte_reg = ACPAXI2AXI_ATU_BASE_
75 pte_size = ACPAXI2AXI_ATU_PAGE
76 offset = offsetof(struct scrat
77 stream->reg_offset = PTE_GRP7_
78 break;
79 case 8:
80 pte_reg = ACPAXI2AXI_ATU_BASE_
81 pte_size = ACPAXI2AXI_ATU_PAGE
82 offset = offsetof(struct scrat
83 stream->reg_offset = PTE_GRP8_
84 break;
85 default:
86 dev_err(sdev->dev, "Invalid st
87 return -EINVAL;
88 }
89
90 /* write phy_addr in scratch memory */
91
92 phy_addr_offset = sdev->debug_box.offs
93 offsetof(struct scra
94 index = stream_tag - 1;
95 phy_addr_offset = phy_addr_offset + in
96
97 snd_sof_dsp_write(sdev, ACP_DSP_BAR, A
98 phy_addr_offset, str
99
100 /* Group Enable */
101 offset = offset + sdev->debug_box.offs
102 reg_val = desc->sram_pte_offset + offs
103 snd_sof_dsp_write(sdev, ACP_DSP_BAR, p
104 snd_sof_dsp_write(sdev, ACP_DSP_BAR, p
105
106 for (page_idx = 0; page_idx < stream->
107 addr = snd_sgbuf_get_addr(stre
108
109 /* Load the low address of pag
110 low = lower_32_bits(addr);
111 high = upper_32_bits(addr);
112
113 snd_sof_dsp_write(sdev, ACP_DS
114
115 high |= BIT(31);
116 snd_sof_dsp_write(sdev, ACP_DS
117 /* Move to next physically con
118 offset += 8;
119 }
120
121 /* Flush ATU Cache after PTE Update */
122 snd_sof_dsp_write(sdev, ACP_DSP_BAR, A
123
124 return 0;
125 }
126
127 struct acp_dsp_stream *acp_dsp_stream_get(stru
128 {
129 struct acp_dev_data *adata = sdev->pda
130 struct acp_dsp_stream *stream = adata-
131 int i;
132
133 for (i = 0; i < ACP_MAX_STREAM; i++, s
134 if (stream->active)
135 continue;
136
137 /* return stream if tag not sp
138 if (!tag) {
139 stream->active = 1;
140 return stream;
141 }
142
143 /* check if this is the reques
144 if (stream->stream_tag == tag)
145 stream->active = 1;
146 return stream;
147 }
148 }
149
150 dev_err(sdev->dev, "stream %d active o
151 return NULL;
152 }
153 EXPORT_SYMBOL_NS(acp_dsp_stream_get, SND_SOC_S
154
155 int acp_dsp_stream_put(struct snd_sof_dev *sde
156 struct acp_dsp_stream *
157 {
158 struct acp_dev_data *adata = sdev->pda
159 struct acp_dsp_stream *stream = adata-
160 int i;
161
162 /* Free an active stream */
163 for (i = 0; i < ACP_MAX_STREAM; i++, s
164 if (stream == acp_stream) {
165 stream->active = 0;
166 return 0;
167 }
168 }
169
170 dev_err(sdev->dev, "Cannot find active
171 return -EINVAL;
172 }
173 EXPORT_SYMBOL_NS(acp_dsp_stream_put, SND_SOC_S
174
175 int acp_dsp_stream_init(struct snd_sof_dev *sd
176 {
177 struct acp_dev_data *adata = sdev->pda
178 int i;
179
180 for (i = 0; i < ACP_MAX_STREAM; i++) {
181 adata->stream_buf[i].sdev = sd
182 adata->stream_buf[i].active =
183 adata->stream_buf[i].stream_ta
184 }
185 return 0;
186 }
187 EXPORT_SYMBOL_NS(acp_dsp_stream_init, SND_SOC_
188
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