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}