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
 51void 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
 63void 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
 75static 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 || source < DC_IRQ_SOURCE_INVALID)
 80		return NULL;
 81
 82	return &irq_service->info[source];
 83}
 84
 85void 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
 98bool 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
130void 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
142bool 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
170enum 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}