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 #if defined(CONFIG_DRM_AMD_DC_DCE12_0) 37 #include "dce120/irq_service_dce120.h" 38 #endif 39 40 #include "reg_helper.h" 41 #include "irq_service.h" 42 43 44 45 #define CTX \ 46 irq_service->ctx 47 48 bool dal_irq_service_construct( 49 struct irq_service *irq_service, 50 struct irq_service_init_data *init_data) 51 { 52 if (!init_data || !init_data->ctx) 53 return false; 54 55 irq_service->ctx = init_data->ctx; 56 return true; 57 } 58 59 void dal_irq_service_destroy(struct irq_service **irq_service) 60 { 61 if (!irq_service || !*irq_service) { 62 BREAK_TO_DEBUGGER(); 63 return; 64 } 65 66 dm_free(*irq_service); 67 68 *irq_service = NULL; 69 } 70 71 const struct irq_source_info *find_irq_source_info( 72 struct irq_service *irq_service, 73 enum dc_irq_source source) 74 { 75 if (source > DAL_IRQ_SOURCES_NUMBER || source < DC_IRQ_SOURCE_INVALID) 76 return NULL; 77 78 return &irq_service->info[source]; 79 } 80 81 void dal_irq_service_set_generic( 82 struct irq_service *irq_service, 83 const struct irq_source_info *info, 84 bool enable) 85 { 86 uint32_t addr = info->enable_reg; 87 uint32_t value = dm_read_reg(irq_service->ctx, addr); 88 89 value = (value & ~info->enable_mask) | 90 (info->enable_value[enable ? 0 : 1] & info->enable_mask); 91 dm_write_reg(irq_service->ctx, addr, value); 92 } 93 94 bool dal_irq_service_set( 95 struct irq_service *irq_service, 96 enum dc_irq_source source, 97 bool enable) 98 { 99 const struct irq_source_info *info = 100 find_irq_source_info(irq_service, source); 101 102 if (!info) { 103 dm_logger_write( 104 irq_service->ctx->logger, LOG_ERROR, 105 "%s: cannot find irq info table entry for %d\n", 106 __func__, 107 source); 108 return false; 109 } 110 111 dal_irq_service_ack(irq_service, source); 112 113 if (info->funcs->set) 114 return info->funcs->set(irq_service, info, enable); 115 116 dal_irq_service_set_generic(irq_service, info, enable); 117 118 return true; 119 } 120 121 void dal_irq_service_ack_generic( 122 struct irq_service *irq_service, 123 const struct irq_source_info *info) 124 { 125 uint32_t addr = info->ack_reg; 126 uint32_t value = dm_read_reg(irq_service->ctx, addr); 127 128 value = (value & ~info->ack_mask) | 129 (info->ack_value & info->ack_mask); 130 dm_write_reg(irq_service->ctx, addr, value); 131 } 132 133 bool dal_irq_service_ack( 134 struct irq_service *irq_service, 135 enum dc_irq_source source) 136 { 137 const struct irq_source_info *info = 138 find_irq_source_info(irq_service, source); 139 140 if (!info) { 141 dm_logger_write( 142 irq_service->ctx->logger, LOG_ERROR, 143 "%s: cannot find irq info table entry for %d\n", 144 __func__, 145 source); 146 return false; 147 } 148 149 if (info->funcs->ack) 150 return info->funcs->ack(irq_service, info); 151 152 dal_irq_service_ack_generic(irq_service, info); 153 154 return true; 155 } 156 157 enum dc_irq_source dal_irq_service_to_irq_source( 158 struct irq_service *irq_service, 159 uint32_t src_id, 160 uint32_t ext_id) 161 { 162 return irq_service->funcs->to_dal_irq_source( 163 irq_service, 164 src_id, 165 ext_id); 166 } 167