irq_service.c revision 1.1 
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
53void 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
65void 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
77const struct irq_source_info *find_irq_source_info(
78	struct irq_service *irq_service,
79	enum dc_irq_source source)
80{
81	if (source >= DAL_IRQ_SOURCES_NUMBER || source < DC_IRQ_SOURCE_INVALID)
82		return NULL;
83
84	return &irq_service->info[source];
85}
86
87void dal_irq_service_set_generic(
88	struct irq_service *irq_service,
89	const struct irq_source_info *info,
90	bool enable)
91{
92	uint32_t addr = info->enable_reg;
93	uint32_t value = dm_read_reg(irq_service->ctx, addr);
94
95	value = (value & ~info->enable_mask) |
96		(info->enable_value[enable ? 0 : 1] & info->enable_mask);
97	dm_write_reg(irq_service->ctx, addr, value);
98}
99
100bool dal_irq_service_set(
101	struct irq_service *irq_service,
102	enum dc_irq_source source,
103	bool enable)
104{
105	const struct irq_source_info *info =
106		find_irq_source_info(irq_service, source);
107
108	if (!info) {
109		DC_LOG_ERROR("%s: cannot find irq info table entry for %d\n",
110			__func__,
111			source);
112		return false;
113	}
114
115	dal_irq_service_ack(irq_service, source);
116
117	if (info->funcs->set)
118		return info->funcs->set(irq_service, info, enable);
119
120	dal_irq_service_set_generic(irq_service, info, enable);
121
122	return true;
123}
124
125void dal_irq_service_ack_generic(
126	struct irq_service *irq_service,
127	const struct irq_source_info *info)
128{
129	uint32_t addr = info->ack_reg;
130	uint32_t value = dm_read_reg(irq_service->ctx, addr);
131
132	value = (value & ~info->ack_mask) |
133		(info->ack_value & info->ack_mask);
134	dm_write_reg(irq_service->ctx, addr, value);
135}
136
137bool dal_irq_service_ack(
138	struct irq_service *irq_service,
139	enum dc_irq_source source)
140{
141	const struct irq_source_info *info =
142		find_irq_source_info(irq_service, source);
143
144	if (!info) {
145		DC_LOG_ERROR("%s: cannot find irq info table entry for %d\n",
146			__func__,
147			source);
148		return false;
149	}
150
151	if (info->funcs->ack)
152		return info->funcs->ack(irq_service, info);
153
154	dal_irq_service_ack_generic(irq_service, info);
155
156	return true;
157}
158
159enum dc_irq_source dal_irq_service_to_irq_source(
160		struct irq_service *irq_service,
161		uint32_t src_id,
162		uint32_t ext_id)
163{
164	return irq_service->funcs->to_dal_irq_source(
165		irq_service,
166		src_id,
167		ext_id);
168}
169