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 51 bool 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 return false; 57 58 irq_service->ctx = init_data->ctx; 59 return true; 60 } 61 62 void dal_irq_service_destroy(struct irq_service **irq_service) 63 { 64 if (!irq_service || !*irq_service) { 65 BREAK_TO_DEBUGGER(); 66 return; 67 } 68 69 kfree(*irq_service); 70 71 *irq_service = NULL; 72 } 73 74 const struct irq_source_info *find_irq_source_info( 75 struct irq_service *irq_service, 76 enum dc_irq_source source) 77 { 78 if (source > DAL_IRQ_SOURCES_NUMBER || source < DC_IRQ_SOURCE_INVALID) 79 return NULL; 80 81 return &irq_service->info[source]; 82 } 83 84 void dal_irq_service_set_generic( 85 struct irq_service *irq_service, 86 const struct irq_source_info *info, 87 bool enable) 88 { 89 uint32_t addr = info->enable_reg; 90 uint32_t value = dm_read_reg(irq_service->ctx, addr); 91 92 value = (value & ~info->enable_mask) | 93 (info->enable_value[enable ? 0 : 1] & info->enable_mask); 94 dm_write_reg(irq_service->ctx, addr, value); 95 } 96 97 bool dal_irq_service_set( 98 struct irq_service *irq_service, 99 enum dc_irq_source source, 100 bool enable) 101 { 102 const struct irq_source_info *info = 103 find_irq_source_info(irq_service, source); 104 105 if (!info) { 106 dm_logger_write( 107 irq_service->ctx->logger, LOG_ERROR, 108 "%s: cannot find irq info table entry for %d\n", 109 __func__, 110 source); 111 return false; 112 } 113 114 dal_irq_service_ack(irq_service, source); 115 116 if (info->funcs->set) 117 return info->funcs->set(irq_service, info, enable); 118 119 dal_irq_service_set_generic(irq_service, info, enable); 120 121 return true; 122 } 123 124 void dal_irq_service_ack_generic( 125 struct irq_service *irq_service, 126 const struct irq_source_info *info) 127 { 128 uint32_t addr = info->ack_reg; 129 uint32_t value = dm_read_reg(irq_service->ctx, addr); 130 131 value = (value & ~info->ack_mask) | 132 (info->ack_value & info->ack_mask); 133 dm_write_reg(irq_service->ctx, addr, value); 134 } 135 136 bool dal_irq_service_ack( 137 struct irq_service *irq_service, 138 enum dc_irq_source source) 139 { 140 const struct irq_source_info *info = 141 find_irq_source_info(irq_service, source); 142 143 if (!info) { 144 dm_logger_write( 145 irq_service->ctx->logger, LOG_ERROR, 146 "%s: cannot find irq info table entry for %d\n", 147 __func__, 148 source); 149 return false; 150 } 151 152 if (info->funcs->ack) 153 return info->funcs->ack(irq_service, info); 154 155 dal_irq_service_ack_generic(irq_service, info); 156 157 return true; 158 } 159 160 enum dc_irq_source dal_irq_service_to_irq_source( 161 struct irq_service *irq_service, 162 uint32_t src_id, 163 uint32_t ext_id) 164 { 165 return irq_service->funcs->to_dal_irq_source( 166 irq_service, 167 src_id, 168 ext_id); 169 } 170