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