1 /*
2 * Copyright 2012-15 Advanced Micro Devices, Inc.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
21 *
22 * Authors: AMD
23 *
24 */
25
26 #include "dm_services.h"
27
28 #include "include/irq_service_interface.h"
29 #include "include/logger_interface.h"
30
31 #include "dce110/irq_service_dce110.h"
32
33 #if defined(CONFIG_DRM_AMD_DC_SI)
34 #include "dce60/irq_service_dce60.h"
35 #endif
36
37 #include "dce80/irq_service_dce80.h"
38 #include "dce120/irq_service_dce120.h"
39 #include "dcn10/irq_service_dcn10.h"
40
41 #include "reg_helper.h"
42 #include "irq_service.h"
43
44
45
46 #define CTX \
47 irq_service->ctx
48 #define DC_LOGGER \
49 irq_service->ctx->logger
50
dal_irq_service_construct(struct irq_service * irq_service,struct irq_service_init_data * init_data)51 void dal_irq_service_construct(
52 struct irq_service *irq_service,
53 struct irq_service_init_data *init_data)
54 {
55 if (!init_data || !init_data->ctx) {
56 BREAK_TO_DEBUGGER();
57 return;
58 }
59
60 irq_service->ctx = init_data->ctx;
61 }
62
dal_irq_service_destroy(struct irq_service ** irq_service)63 void dal_irq_service_destroy(struct irq_service **irq_service)
64 {
65 if (!irq_service || !*irq_service) {
66 BREAK_TO_DEBUGGER();
67 return;
68 }
69
70 kfree(*irq_service);
71
72 *irq_service = NULL;
73 }
74
find_irq_source_info(struct irq_service * irq_service,enum dc_irq_source source)75 static const struct irq_source_info *find_irq_source_info(
76 struct irq_service *irq_service,
77 enum dc_irq_source source)
78 {
79 if (source >= DAL_IRQ_SOURCES_NUMBER)
80 return NULL;
81
82 return &irq_service->info[source];
83 }
84
dal_irq_service_set_generic(struct irq_service * irq_service,const struct irq_source_info * info,bool enable)85 void dal_irq_service_set_generic(
86 struct irq_service *irq_service,
87 const struct irq_source_info *info,
88 bool enable)
89 {
90 uint32_t addr = info->enable_reg;
91 uint32_t value = dm_read_reg(irq_service->ctx, addr);
92
93 value = (value & ~info->enable_mask) |
94 (info->enable_value[enable ? 0 : 1] & info->enable_mask);
95 dm_write_reg(irq_service->ctx, addr, value);
96 }
97
dal_irq_service_set(struct irq_service * irq_service,enum dc_irq_source source,bool enable)98 bool dal_irq_service_set(
99 struct irq_service *irq_service,
100 enum dc_irq_source source,
101 bool enable)
102 {
103 const struct irq_source_info *info =
104 find_irq_source_info(irq_service, source);
105
106 if (!info) {
107 DC_LOG_ERROR("%s: cannot find irq info table entry for %d\n",
108 __func__,
109 source);
110 return false;
111 }
112
113 dal_irq_service_ack(irq_service, source);
114
115 if (info->funcs && info->funcs->set) {
116 if (info->funcs->set == dal_irq_service_dummy_set) {
117 DC_LOG_WARNING("%s: src: %d, st: %d\n", __func__,
118 source, enable);
119 ASSERT(0);
120 }
121
122 return info->funcs->set(irq_service, info, enable);
123 }
124
125 dal_irq_service_set_generic(irq_service, info, enable);
126
127 return true;
128 }
129
dal_irq_service_ack_generic(struct irq_service * irq_service,const struct irq_source_info * info)130 void dal_irq_service_ack_generic(
131 struct irq_service *irq_service,
132 const struct irq_source_info *info)
133 {
134 uint32_t addr = info->ack_reg;
135 uint32_t value = dm_read_reg(irq_service->ctx, addr);
136
137 value = (value & ~info->ack_mask) |
138 (info->ack_value & info->ack_mask);
139 dm_write_reg(irq_service->ctx, addr, value);
140 }
141
dal_irq_service_ack(struct irq_service * irq_service,enum dc_irq_source source)142 bool dal_irq_service_ack(
143 struct irq_service *irq_service,
144 enum dc_irq_source source)
145 {
146 const struct irq_source_info *info =
147 find_irq_source_info(irq_service, source);
148
149 if (!info) {
150 DC_LOG_ERROR("%s: cannot find irq info table entry for %d\n",
151 __func__,
152 source);
153 return false;
154 }
155
156 if (info->funcs && info->funcs->ack) {
157 if (info->funcs->ack == dal_irq_service_dummy_ack) {
158 DC_LOG_WARNING("%s: src: %d\n", __func__, source);
159 ASSERT(0);
160 }
161
162 return info->funcs->ack(irq_service, info);
163 }
164
165 dal_irq_service_ack_generic(irq_service, info);
166
167 return true;
168 }
169
dal_irq_service_to_irq_source(struct irq_service * irq_service,uint32_t src_id,uint32_t ext_id)170 enum dc_irq_source dal_irq_service_to_irq_source(
171 struct irq_service *irq_service,
172 uint32_t src_id,
173 uint32_t ext_id)
174 {
175 return irq_service->funcs->to_dal_irq_source(
176 irq_service,
177 src_id,
178 ext_id);
179 }
180