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
34 #include "dce80/irq_service_dce80.h"
35
36 #include "dce120/irq_service_dce120.h"
37
38
39 #if defined(CONFIG_DRM_AMD_DC_DCN1_0)
40 #include "dcn10/irq_service_dcn10.h"
41 #endif
42
43 #include "reg_helper.h"
44 #include "irq_service.h"
45
46
47
48 #define CTX \
49 irq_service->ctx
50 #define DC_LOGGER \
51 irq_service->ctx->logger
52
dal_irq_service_construct(struct irq_service * irq_service,struct irq_service_init_data * init_data)53 void dal_irq_service_construct(
54 struct irq_service *irq_service,
55 struct irq_service_init_data *init_data)
56 {
57 if (!init_data || !init_data->ctx) {
58 BREAK_TO_DEBUGGER();
59 return;
60 }
61
62 irq_service->ctx = init_data->ctx;
63 }
64
dal_irq_service_destroy(struct irq_service ** irq_service)65 void dal_irq_service_destroy(struct irq_service **irq_service)
66 {
67 if (!irq_service || !*irq_service) {
68 BREAK_TO_DEBUGGER();
69 return;
70 }
71
72 kfree(*irq_service);
73
74 *irq_service = NULL;
75 }
76
77 static
find_irq_source_info(struct irq_service * irq_service,enum dc_irq_source source)78 const struct irq_source_info *find_irq_source_info(
79 struct irq_service *irq_service,
80 enum dc_irq_source source)
81 {
82 if (source >= DAL_IRQ_SOURCES_NUMBER || source < DC_IRQ_SOURCE_INVALID)
83 return NULL;
84
85 return &irq_service->info[source];
86 }
87
dal_irq_service_set_generic(struct irq_service * irq_service,const struct irq_source_info * info,bool enable)88 void dal_irq_service_set_generic(
89 struct irq_service *irq_service,
90 const struct irq_source_info *info,
91 bool enable)
92 {
93 uint32_t addr = info->enable_reg;
94 uint32_t value = dm_read_reg(irq_service->ctx, addr);
95
96 value = (value & ~info->enable_mask) |
97 (info->enable_value[enable ? 0 : 1] & info->enable_mask);
98 dm_write_reg(irq_service->ctx, addr, value);
99 }
100
dal_irq_service_set(struct irq_service * irq_service,enum dc_irq_source source,bool enable)101 bool dal_irq_service_set(
102 struct irq_service *irq_service,
103 enum dc_irq_source source,
104 bool enable)
105 {
106 const struct irq_source_info *info =
107 find_irq_source_info(irq_service, source);
108
109 if (!info) {
110 DC_LOG_ERROR("%s: cannot find irq info table entry for %d\n",
111 __func__,
112 source);
113 return false;
114 }
115
116 dal_irq_service_ack(irq_service, source);
117
118 if (info->funcs->set)
119 return info->funcs->set(irq_service, info, enable);
120
121 dal_irq_service_set_generic(irq_service, info, enable);
122
123 return true;
124 }
125
dal_irq_service_ack_generic(struct irq_service * irq_service,const struct irq_source_info * info)126 void dal_irq_service_ack_generic(
127 struct irq_service *irq_service,
128 const struct irq_source_info *info)
129 {
130 uint32_t addr = info->ack_reg;
131 uint32_t value = dm_read_reg(irq_service->ctx, addr);
132
133 value = (value & ~info->ack_mask) |
134 (info->ack_value & info->ack_mask);
135 dm_write_reg(irq_service->ctx, addr, value);
136 }
137
dal_irq_service_ack(struct irq_service * irq_service,enum dc_irq_source source)138 bool dal_irq_service_ack(
139 struct irq_service *irq_service,
140 enum dc_irq_source source)
141 {
142 const struct irq_source_info *info =
143 find_irq_source_info(irq_service, source);
144
145 if (!info) {
146 DC_LOG_ERROR("%s: cannot find irq info table entry for %d\n",
147 __func__,
148 source);
149 return false;
150 }
151
152 if (info->funcs->ack)
153 return info->funcs->ack(irq_service, info);
154
155 dal_irq_service_ack_generic(irq_service, info);
156
157 return true;
158 }
159
dal_irq_service_to_irq_source(struct irq_service * irq_service,uint32_t src_id,uint32_t ext_id)160 enum dc_irq_source dal_irq_service_to_irq_source(
161 struct irq_service *irq_service,
162 uint32_t src_id,
163 uint32_t ext_id)
164 {
165 return irq_service->funcs->to_dal_irq_source(
166 irq_service,
167 src_id,
168 ext_id);
169 }
170