1/* $NetBSD: amdgpu_irq_service_dcn20.c,v 1.2 2021/12/18 23:45:06 riastradh Exp $ */ 2 3/* 4 * Copyright 2018 Advanced Micro Devices, Inc. 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a 7 * copy of this software and associated documentation files (the "Software"), 8 * to deal in the Software without restriction, including without limitation 9 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 10 * and/or sell copies of the Software, and to permit persons to whom the 11 * Software is furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice shall be included in 14 * all copies or substantial portions of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 19 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 22 * OTHER DEALINGS IN THE SOFTWARE. 23 * 24 * Authors: AMD 25 * 26 */ 27 28#include <sys/cdefs.h> 29__KERNEL_RCSID(0, "$NetBSD: amdgpu_irq_service_dcn20.c,v 1.2 2021/12/18 23:45:06 riastradh Exp $"); 30 31#include <linux/slab.h> 32 33#include "dm_services.h" 34 35#include "include/logger_interface.h" 36 37#include "../dce110/irq_service_dce110.h" 38 39#include "dcn/dcn_2_0_0_offset.h" 40#include "dcn/dcn_2_0_0_sh_mask.h" 41#include "navi10_ip_offset.h" 42 43 44#include "irq_service_dcn20.h" 45 46#include "ivsrcid/dcn/irqsrcs_dcn_1_0.h" 47 48enum dc_irq_source to_dal_irq_source_dcn20( 49 struct irq_service *irq_service, 50 uint32_t src_id, 51 uint32_t ext_id) 52{ 53 switch (src_id) { 54 case DCN_1_0__SRCID__DC_D1_OTG_VSTARTUP: 55 return DC_IRQ_SOURCE_VBLANK1; 56 case DCN_1_0__SRCID__DC_D2_OTG_VSTARTUP: 57 return DC_IRQ_SOURCE_VBLANK2; 58 case DCN_1_0__SRCID__DC_D3_OTG_VSTARTUP: 59 return DC_IRQ_SOURCE_VBLANK3; 60 case DCN_1_0__SRCID__DC_D4_OTG_VSTARTUP: 61 return DC_IRQ_SOURCE_VBLANK4; 62 case DCN_1_0__SRCID__DC_D5_OTG_VSTARTUP: 63 return DC_IRQ_SOURCE_VBLANK5; 64 case DCN_1_0__SRCID__DC_D6_OTG_VSTARTUP: 65 return DC_IRQ_SOURCE_VBLANK6; 66 case DCN_1_0__SRCID__HUBP0_FLIP_INTERRUPT: 67 return DC_IRQ_SOURCE_PFLIP1; 68 case DCN_1_0__SRCID__HUBP1_FLIP_INTERRUPT: 69 return DC_IRQ_SOURCE_PFLIP2; 70 case DCN_1_0__SRCID__HUBP2_FLIP_INTERRUPT: 71 return DC_IRQ_SOURCE_PFLIP3; 72 case DCN_1_0__SRCID__HUBP3_FLIP_INTERRUPT: 73 return DC_IRQ_SOURCE_PFLIP4; 74 case DCN_1_0__SRCID__HUBP4_FLIP_INTERRUPT: 75 return DC_IRQ_SOURCE_PFLIP5; 76 case DCN_1_0__SRCID__HUBP5_FLIP_INTERRUPT: 77 return DC_IRQ_SOURCE_PFLIP6; 78 case DCN_1_0__SRCID__OTG0_IHC_V_UPDATE_NO_LOCK_INTERRUPT: 79 return DC_IRQ_SOURCE_VUPDATE1; 80 case DCN_1_0__SRCID__OTG1_IHC_V_UPDATE_NO_LOCK_INTERRUPT: 81 return DC_IRQ_SOURCE_VUPDATE2; 82 case DCN_1_0__SRCID__OTG2_IHC_V_UPDATE_NO_LOCK_INTERRUPT: 83 return DC_IRQ_SOURCE_VUPDATE3; 84 case DCN_1_0__SRCID__OTG3_IHC_V_UPDATE_NO_LOCK_INTERRUPT: 85 return DC_IRQ_SOURCE_VUPDATE4; 86 case DCN_1_0__SRCID__OTG4_IHC_V_UPDATE_NO_LOCK_INTERRUPT: 87 return DC_IRQ_SOURCE_VUPDATE5; 88 case DCN_1_0__SRCID__OTG5_IHC_V_UPDATE_NO_LOCK_INTERRUPT: 89 return DC_IRQ_SOURCE_VUPDATE6; 90 91 case DCN_1_0__SRCID__DC_HPD1_INT: 92 /* generic src_id for all HPD and HPDRX interrupts */ 93 switch (ext_id) { 94 case DCN_1_0__CTXID__DC_HPD1_INT: 95 return DC_IRQ_SOURCE_HPD1; 96 case DCN_1_0__CTXID__DC_HPD2_INT: 97 return DC_IRQ_SOURCE_HPD2; 98 case DCN_1_0__CTXID__DC_HPD3_INT: 99 return DC_IRQ_SOURCE_HPD3; 100 case DCN_1_0__CTXID__DC_HPD4_INT: 101 return DC_IRQ_SOURCE_HPD4; 102 case DCN_1_0__CTXID__DC_HPD5_INT: 103 return DC_IRQ_SOURCE_HPD5; 104 case DCN_1_0__CTXID__DC_HPD6_INT: 105 return DC_IRQ_SOURCE_HPD6; 106 case DCN_1_0__CTXID__DC_HPD1_RX_INT: 107 return DC_IRQ_SOURCE_HPD1RX; 108 case DCN_1_0__CTXID__DC_HPD2_RX_INT: 109 return DC_IRQ_SOURCE_HPD2RX; 110 case DCN_1_0__CTXID__DC_HPD3_RX_INT: 111 return DC_IRQ_SOURCE_HPD3RX; 112 case DCN_1_0__CTXID__DC_HPD4_RX_INT: 113 return DC_IRQ_SOURCE_HPD4RX; 114 case DCN_1_0__CTXID__DC_HPD5_RX_INT: 115 return DC_IRQ_SOURCE_HPD5RX; 116 case DCN_1_0__CTXID__DC_HPD6_RX_INT: 117 return DC_IRQ_SOURCE_HPD6RX; 118 default: 119 return DC_IRQ_SOURCE_INVALID; 120 } 121 break; 122 123 default: 124 return DC_IRQ_SOURCE_INVALID; 125 } 126} 127 128static bool hpd_ack( 129 struct irq_service *irq_service, 130 const struct irq_source_info *info) 131{ 132 uint32_t addr = info->status_reg; 133 uint32_t value = dm_read_reg(irq_service->ctx, addr); 134 uint32_t current_status = 135 get_reg_field_value( 136 value, 137 HPD0_DC_HPD_INT_STATUS, 138 DC_HPD_SENSE_DELAYED); 139 140 dal_irq_service_ack_generic(irq_service, info); 141 142 value = dm_read_reg(irq_service->ctx, info->enable_reg); 143 144 set_reg_field_value( 145 value, 146 current_status ? 0 : 1, 147 HPD0_DC_HPD_INT_CONTROL, 148 DC_HPD_INT_POLARITY); 149 150 dm_write_reg(irq_service->ctx, info->enable_reg, value); 151 152 return true; 153} 154 155static const struct irq_source_info_funcs hpd_irq_info_funcs = { 156 .set = NULL, 157 .ack = hpd_ack 158}; 159 160static const struct irq_source_info_funcs hpd_rx_irq_info_funcs = { 161 .set = NULL, 162 .ack = NULL 163}; 164 165static const struct irq_source_info_funcs pflip_irq_info_funcs = { 166 .set = NULL, 167 .ack = NULL 168}; 169 170static const struct irq_source_info_funcs vblank_irq_info_funcs = { 171 .set = NULL, 172 .ack = NULL 173}; 174 175static const struct irq_source_info_funcs vupdate_no_lock_irq_info_funcs = { 176 .set = NULL, 177 .ack = NULL 178}; 179 180#undef BASE_INNER 181#define BASE_INNER(seg) DCN_BASE__INST0_SEG ## seg 182 183/* compile time expand base address. */ 184#define BASE(seg) \ 185 BASE_INNER(seg) 186 187 188#define SRI(reg_name, block, id)\ 189 BASE(mm ## block ## id ## _ ## reg_name ## _BASE_IDX) + \ 190 mm ## block ## id ## _ ## reg_name 191 192 193#define IRQ_REG_ENTRY(block, reg_num, reg1, mask1, reg2, mask2)\ 194 .enable_reg = SRI(reg1, block, reg_num),\ 195 .enable_mask = \ 196 block ## reg_num ## _ ## reg1 ## __ ## mask1 ## _MASK,\ 197 .enable_value = {\ 198 block ## reg_num ## _ ## reg1 ## __ ## mask1 ## _MASK,\ 199 ~block ## reg_num ## _ ## reg1 ## __ ## mask1 ## _MASK \ 200 },\ 201 .ack_reg = SRI(reg2, block, reg_num),\ 202 .ack_mask = \ 203 block ## reg_num ## _ ## reg2 ## __ ## mask2 ## _MASK,\ 204 .ack_value = \ 205 block ## reg_num ## _ ## reg2 ## __ ## mask2 ## _MASK \ 206 207 208 209#define hpd_int_entry(reg_num)\ 210 [DC_IRQ_SOURCE_HPD1 + reg_num] = {\ 211 IRQ_REG_ENTRY(HPD, reg_num,\ 212 DC_HPD_INT_CONTROL, DC_HPD_INT_EN,\ 213 DC_HPD_INT_CONTROL, DC_HPD_INT_ACK),\ 214 .status_reg = SRI(DC_HPD_INT_STATUS, HPD, reg_num),\ 215 .funcs = &hpd_irq_info_funcs\ 216 } 217 218#define hpd_rx_int_entry(reg_num)\ 219 [DC_IRQ_SOURCE_HPD1RX + reg_num] = {\ 220 IRQ_REG_ENTRY(HPD, reg_num,\ 221 DC_HPD_INT_CONTROL, DC_HPD_RX_INT_EN,\ 222 DC_HPD_INT_CONTROL, DC_HPD_RX_INT_ACK),\ 223 .status_reg = SRI(DC_HPD_INT_STATUS, HPD, reg_num),\ 224 .funcs = &hpd_rx_irq_info_funcs\ 225 } 226#define pflip_int_entry(reg_num)\ 227 [DC_IRQ_SOURCE_PFLIP1 + reg_num] = {\ 228 IRQ_REG_ENTRY(HUBPREQ, reg_num,\ 229 DCSURF_SURFACE_FLIP_INTERRUPT, SURFACE_FLIP_INT_MASK,\ 230 DCSURF_SURFACE_FLIP_INTERRUPT, SURFACE_FLIP_CLEAR),\ 231 .funcs = &pflip_irq_info_funcs\ 232 } 233 234/* vupdate_no_lock_int_entry maps to DC_IRQ_SOURCE_VUPDATEx, to match semantic 235 * of DCE's DC_IRQ_SOURCE_VUPDATEx. 236 */ 237#define vupdate_no_lock_int_entry(reg_num)\ 238 [DC_IRQ_SOURCE_VUPDATE1 + reg_num] = {\ 239 IRQ_REG_ENTRY(OTG, reg_num,\ 240 OTG_GLOBAL_SYNC_STATUS, VUPDATE_NO_LOCK_INT_EN,\ 241 OTG_GLOBAL_SYNC_STATUS, VUPDATE_NO_LOCK_EVENT_CLEAR),\ 242 .funcs = &vupdate_no_lock_irq_info_funcs\ 243 } 244 245#define vblank_int_entry(reg_num)\ 246 [DC_IRQ_SOURCE_VBLANK1 + reg_num] = {\ 247 IRQ_REG_ENTRY(OTG, reg_num,\ 248 OTG_GLOBAL_SYNC_STATUS, VSTARTUP_INT_EN,\ 249 OTG_GLOBAL_SYNC_STATUS, VSTARTUP_EVENT_CLEAR),\ 250 .funcs = &vblank_irq_info_funcs\ 251 } 252 253#define dummy_irq_entry() \ 254 {\ 255 .funcs = &dummy_irq_info_funcs\ 256 } 257 258#define i2c_int_entry(reg_num) \ 259 [DC_IRQ_SOURCE_I2C_DDC ## reg_num] = dummy_irq_entry() 260 261#define dp_sink_int_entry(reg_num) \ 262 [DC_IRQ_SOURCE_DPSINK ## reg_num] = dummy_irq_entry() 263 264#define gpio_pad_int_entry(reg_num) \ 265 [DC_IRQ_SOURCE_GPIOPAD ## reg_num] = dummy_irq_entry() 266 267#define dc_underflow_int_entry(reg_num) \ 268 [DC_IRQ_SOURCE_DC ## reg_num ## UNDERFLOW] = dummy_irq_entry() 269 270static const struct irq_source_info_funcs dummy_irq_info_funcs = { 271 .set = dal_irq_service_dummy_set, 272 .ack = dal_irq_service_dummy_ack 273}; 274 275static const struct irq_source_info 276irq_source_info_dcn20[DAL_IRQ_SOURCES_NUMBER] = { 277 [DC_IRQ_SOURCE_INVALID] = dummy_irq_entry(), 278 hpd_int_entry(0), 279 hpd_int_entry(1), 280 hpd_int_entry(2), 281 hpd_int_entry(3), 282 hpd_int_entry(4), 283 hpd_int_entry(5), 284 hpd_rx_int_entry(0), 285 hpd_rx_int_entry(1), 286 hpd_rx_int_entry(2), 287 hpd_rx_int_entry(3), 288 hpd_rx_int_entry(4), 289 hpd_rx_int_entry(5), 290 i2c_int_entry(1), 291 i2c_int_entry(2), 292 i2c_int_entry(3), 293 i2c_int_entry(4), 294 i2c_int_entry(5), 295 i2c_int_entry(6), 296 dp_sink_int_entry(1), 297 dp_sink_int_entry(2), 298 dp_sink_int_entry(3), 299 dp_sink_int_entry(4), 300 dp_sink_int_entry(5), 301 dp_sink_int_entry(6), 302 [DC_IRQ_SOURCE_TIMER] = dummy_irq_entry(), 303 pflip_int_entry(0), 304 pflip_int_entry(1), 305 pflip_int_entry(2), 306 pflip_int_entry(3), 307 [DC_IRQ_SOURCE_PFLIP5] = dummy_irq_entry(), 308 [DC_IRQ_SOURCE_PFLIP6] = dummy_irq_entry(), 309 [DC_IRQ_SOURCE_PFLIP_UNDERLAY0] = dummy_irq_entry(), 310 gpio_pad_int_entry(0), 311 gpio_pad_int_entry(1), 312 gpio_pad_int_entry(2), 313 gpio_pad_int_entry(3), 314 gpio_pad_int_entry(4), 315 gpio_pad_int_entry(5), 316 gpio_pad_int_entry(6), 317 gpio_pad_int_entry(7), 318 gpio_pad_int_entry(8), 319 gpio_pad_int_entry(9), 320 gpio_pad_int_entry(10), 321 gpio_pad_int_entry(11), 322 gpio_pad_int_entry(12), 323 gpio_pad_int_entry(13), 324 gpio_pad_int_entry(14), 325 gpio_pad_int_entry(15), 326 gpio_pad_int_entry(16), 327 gpio_pad_int_entry(17), 328 gpio_pad_int_entry(18), 329 gpio_pad_int_entry(19), 330 gpio_pad_int_entry(20), 331 gpio_pad_int_entry(21), 332 gpio_pad_int_entry(22), 333 gpio_pad_int_entry(23), 334 gpio_pad_int_entry(24), 335 gpio_pad_int_entry(25), 336 gpio_pad_int_entry(26), 337 gpio_pad_int_entry(27), 338 gpio_pad_int_entry(28), 339 gpio_pad_int_entry(29), 340 gpio_pad_int_entry(30), 341 dc_underflow_int_entry(1), 342 dc_underflow_int_entry(2), 343 dc_underflow_int_entry(3), 344 dc_underflow_int_entry(4), 345 dc_underflow_int_entry(5), 346 dc_underflow_int_entry(6), 347 [DC_IRQ_SOURCE_DMCU_SCP] = dummy_irq_entry(), 348 [DC_IRQ_SOURCE_VBIOS_SW] = dummy_irq_entry(), 349 vupdate_no_lock_int_entry(0), 350 vupdate_no_lock_int_entry(1), 351 vupdate_no_lock_int_entry(2), 352 vupdate_no_lock_int_entry(3), 353 vupdate_no_lock_int_entry(4), 354 vupdate_no_lock_int_entry(5), 355 vblank_int_entry(0), 356 vblank_int_entry(1), 357 vblank_int_entry(2), 358 vblank_int_entry(3), 359 vblank_int_entry(4), 360 vblank_int_entry(5), 361}; 362 363static const struct irq_service_funcs irq_service_funcs_dcn20 = { 364 .to_dal_irq_source = to_dal_irq_source_dcn20 365}; 366 367static void dcn20_irq_construct( 368 struct irq_service *irq_service, 369 struct irq_service_init_data *init_data) 370{ 371 dal_irq_service_construct(irq_service, init_data); 372 373 irq_service->info = irq_source_info_dcn20; 374 irq_service->funcs = &irq_service_funcs_dcn20; 375} 376 377struct irq_service *dal_irq_service_dcn20_create( 378 struct irq_service_init_data *init_data) 379{ 380 struct irq_service *irq_service = kzalloc(sizeof(*irq_service), 381 GFP_KERNEL); 382 383 if (!irq_service) 384 return NULL; 385 386 dcn20_irq_construct(irq_service, init_data); 387 return irq_service; 388} 389