drivers/gpu/drm/amd/display/dc/irq/dce110/irq_service_dce110.c

   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/logger_interface.h"
  29
  30 #include "irq_service_dce110.h"
  31
  32 #include "dce/dce_11_0_d.h"
  33 #include "dce/dce_11_0_sh_mask.h"
  34
  35 #include "ivsrcid/ivsrcid_vislands30.h"
  36
  37 #include "dc.h"
  38 #include "core_types.h"
  39 #define DC_LOGGER \
  40         irq_service->ctx->logger
  41
  42 static bool hpd_ack(struct irq_service *irq_service,
  43                     const struct irq_source_info *info)
  44 {
  45         uint32_t addr = info->status_reg;
  46         uint32_t value = dm_read_reg(irq_service->ctx, addr);
  47         uint32_t current_status = get_reg_field_value(value,
  48                                                       DC_HPD_INT_STATUS,
  49                                                       DC_HPD_SENSE_DELAYED);
  50
  51         dal_irq_service_ack_generic(irq_service, info);
  52
  53         value = dm_read_reg(irq_service->ctx, info->enable_reg);
  54
  55         set_reg_field_value(value, current_status ? 0 : 1,
  56                             DC_HPD_INT_CONTROL,
  57                             DC_HPD_INT_POLARITY);
  58
  59         dm_write_reg(irq_service->ctx, info->enable_reg, value);
  60
  61         return true;
  62 }
  63
  64 static struct irq_source_info_funcs hpd_irq_info_funcs  = {
  65         .set = NULL,
  66         .ack = hpd_ack
  67 };
  68
  69 static struct irq_source_info_funcs hpd_rx_irq_info_funcs = {
  70         .set = NULL,
  71         .ack = NULL
  72 };
  73
  74 static struct irq_source_info_funcs pflip_irq_info_funcs = {
  75         .set = NULL,
  76         .ack = NULL
  77 };
  78
  79 static struct irq_source_info_funcs vblank_irq_info_funcs = {
  80         .set = dce110_vblank_set,
  81         .ack = NULL
  82 };
  83
  84 static struct irq_source_info_funcs vupdate_irq_info_funcs = {
  85         .set = NULL,
  86         .ack = NULL
  87 };
  88
  89 #define hpd_int_entry(reg_num)\
  90         [DC_IRQ_SOURCE_HPD1 + reg_num] = {\
  91                 .enable_reg = mmHPD ## reg_num ## _DC_HPD_INT_CONTROL,\
  92                 .enable_mask = DC_HPD_INT_CONTROL__DC_HPD_INT_EN_MASK,\
  93                 .enable_value = {\
  94                         DC_HPD_INT_CONTROL__DC_HPD_INT_EN_MASK,\
  95                         ~DC_HPD_INT_CONTROL__DC_HPD_INT_EN_MASK\
  96                 },\
  97                 .ack_reg = mmHPD ## reg_num ## _DC_HPD_INT_CONTROL,\
  98                 .ack_mask = DC_HPD_INT_CONTROL__DC_HPD_INT_ACK_MASK,\
  99                 .ack_value = DC_HPD_INT_CONTROL__DC_HPD_INT_ACK_MASK,\
 100                 .status_reg = mmHPD ## reg_num ## _DC_HPD_INT_STATUS,\
 101                 .funcs = &hpd_irq_info_funcs\
 102         }
 103
 104 #define hpd_rx_int_entry(reg_num)\
 105         [DC_IRQ_SOURCE_HPD1RX + reg_num] = {\
 106                 .enable_reg = mmHPD ## reg_num ## _DC_HPD_INT_CONTROL,\
 107                 .enable_mask = DC_HPD_INT_CONTROL__DC_HPD_RX_INT_EN_MASK,\
 108                 .enable_value = {\
 109                         DC_HPD_INT_CONTROL__DC_HPD_RX_INT_EN_MASK,\
 110                         ~DC_HPD_INT_CONTROL__DC_HPD_RX_INT_EN_MASK },\
 111                 .ack_reg = mmHPD ## reg_num ## _DC_HPD_INT_CONTROL,\
 112                 .ack_mask = DC_HPD_INT_CONTROL__DC_HPD_RX_INT_ACK_MASK,\
 113                 .ack_value = DC_HPD_INT_CONTROL__DC_HPD_RX_INT_ACK_MASK,\
 114                 .status_reg = mmHPD ## reg_num ## _DC_HPD_INT_STATUS,\
 115                 .funcs = &hpd_rx_irq_info_funcs\
 116         }
 117 #define pflip_int_entry(reg_num)\
 118         [DC_IRQ_SOURCE_PFLIP1 + reg_num] = {\
 119                 .enable_reg = mmDCP ## reg_num ## _GRPH_INTERRUPT_CONTROL,\
 120                 .enable_mask =\
 121                 GRPH_INTERRUPT_CONTROL__GRPH_PFLIP_INT_MASK_MASK,\
 122                 .enable_value = {\
 123                         GRPH_INTERRUPT_CONTROL__GRPH_PFLIP_INT_MASK_MASK,\
 124                         ~GRPH_INTERRUPT_CONTROL__GRPH_PFLIP_INT_MASK_MASK},\
 125                 .ack_reg = mmDCP ## reg_num ## _GRPH_INTERRUPT_STATUS,\
 126                 .ack_mask = GRPH_INTERRUPT_STATUS__GRPH_PFLIP_INT_CLEAR_MASK,\
 127                 .ack_value = GRPH_INTERRUPT_STATUS__GRPH_PFLIP_INT_CLEAR_MASK,\
 128                 .status_reg = mmDCP ## reg_num ##_GRPH_INTERRUPT_STATUS,\
 129                 .funcs = &pflip_irq_info_funcs\
 130         }
 131
 132 #define vupdate_int_entry(reg_num)\
 133         [DC_IRQ_SOURCE_VUPDATE1 + reg_num] = {\
 134                 .enable_reg = mmCRTC ## reg_num ## _CRTC_INTERRUPT_CONTROL,\
 135                 .enable_mask =\
 136                 CRTC_INTERRUPT_CONTROL__CRTC_V_UPDATE_INT_MSK_MASK,\
 137                 .enable_value = {\
 138                         CRTC_INTERRUPT_CONTROL__CRTC_V_UPDATE_INT_MSK_MASK,\
 139                         ~CRTC_INTERRUPT_CONTROL__CRTC_V_UPDATE_INT_MSK_MASK},\
 140                 .ack_reg = mmCRTC ## reg_num ## _CRTC_V_UPDATE_INT_STATUS,\
 141                 .ack_mask =\
 142                 CRTC_V_UPDATE_INT_STATUS__CRTC_V_UPDATE_INT_CLEAR_MASK,\
 143                 .ack_value =\
 144                 CRTC_V_UPDATE_INT_STATUS__CRTC_V_UPDATE_INT_CLEAR_MASK,\
 145                 .funcs = &vupdate_irq_info_funcs\
 146         }
 147
 148 #define vblank_int_entry(reg_num)\
 149         [DC_IRQ_SOURCE_VBLANK1 + reg_num] = {\
 150                 .enable_reg = mmCRTC ## reg_num ## _CRTC_VERTICAL_INTERRUPT0_CONTROL,\
 151                 .enable_mask =\
 152                 CRTC_VERTICAL_INTERRUPT0_CONTROL__CRTC_VERTICAL_INTERRUPT0_INT_ENABLE_MASK,\
 153                 .enable_value = {\
 154                         CRTC_VERTICAL_INTERRUPT0_CONTROL__CRTC_VERTICAL_INTERRUPT0_INT_ENABLE_MASK,\
 155                         ~CRTC_VERTICAL_INTERRUPT0_CONTROL__CRTC_VERTICAL_INTERRUPT0_INT_ENABLE_MASK},\
 156                 .ack_reg = mmCRTC ## reg_num ## _CRTC_VERTICAL_INTERRUPT0_CONTROL,\
 157                 .ack_mask =\
 158                 CRTC_VERTICAL_INTERRUPT0_CONTROL__CRTC_VERTICAL_INTERRUPT0_CLEAR_MASK,\
 159                 .ack_value =\
 160                 CRTC_VERTICAL_INTERRUPT0_CONTROL__CRTC_VERTICAL_INTERRUPT0_CLEAR_MASK,\
 161                 .funcs = &vblank_irq_info_funcs,\
 162                 .src_id = VISLANDS30_IV_SRCID_D1_VERTICAL_INTERRUPT0 + reg_num\
 163         }
 164
 165 #define dummy_irq_entry() \
 166         {\
 167                 .funcs = &dummy_irq_info_funcs\
 168         }
 169
 170 #define i2c_int_entry(reg_num) \
 171         [DC_IRQ_SOURCE_I2C_DDC ## reg_num] = dummy_irq_entry()
 172
 173 #define dp_sink_int_entry(reg_num) \
 174         [DC_IRQ_SOURCE_DPSINK ## reg_num] = dummy_irq_entry()
 175
 176 #define gpio_pad_int_entry(reg_num) \
 177         [DC_IRQ_SOURCE_GPIOPAD ## reg_num] = dummy_irq_entry()
 178
 179 #define dc_underflow_int_entry(reg_num) \
 180         [DC_IRQ_SOURCE_DC ## reg_num ## UNDERFLOW] = dummy_irq_entry()
 181
 182 bool dal_irq_service_dummy_set(struct irq_service *irq_service,
 183                                const struct irq_source_info *info,
 184                                bool enable)
 185 {
 186         DC_LOG_ERROR("%s: called for non-implemented irq source, src_id=%u, ext_id=%u\n",
 187                      __func__, info->src_id, info->ext_id);
 188
 189         return false;
 190 }
 191
 192 bool dal_irq_service_dummy_ack(struct irq_service *irq_service,
 193                                const struct irq_source_info *info)
 194 {
 195         DC_LOG_ERROR("%s: called for non-implemented irq source, src_id=%u, ext_id=%u\n",
 196                      __func__, info->src_id, info->ext_id);
 197
 198         return false;
 199 }
 200
 201
 202 bool dce110_vblank_set(struct irq_service *irq_service,
 203                        const struct irq_source_info *info,
 204                        bool enable)
 205 {
 206         struct dc_context *dc_ctx = irq_service->ctx;
 207         struct dc *dc = irq_service->ctx->dc;
 208         enum dc_irq_source dal_irq_src =
 209                         dc_interrupt_to_irq_source(irq_service->ctx->dc,
 210                                                    info->src_id,
 211                                                    info->ext_id);
 212         uint8_t pipe_offset = dal_irq_src - IRQ_TYPE_VBLANK;
 213
 214         struct timing_generator *tg;
 215
 216         if (pipe_offset >= MAX_PIPES)
 217                 return false;
 218
 219         tg = dc->current_state->res_ctx.pipe_ctx[pipe_offset].stream_res.tg;
 220
 221         if (enable) {
 222                 if (!tg || !tg->funcs->arm_vert_intr(tg, 2)) {
 223                         DC_ERROR("Failed to get VBLANK!\n");
 224                         return false;
 225                 }
 226         }
 227
 228         dal_irq_service_set_generic(irq_service, info, enable);
 229         return true;
 230 }
 231
 232 static struct irq_source_info_funcs dummy_irq_info_funcs = {
 233         .set = dal_irq_service_dummy_set,
 234         .ack = dal_irq_service_dummy_ack
 235 };
 236
 237 static const struct irq_source_info
 238 irq_source_info_dce110[DAL_IRQ_SOURCES_NUMBER] = {
 239         [DC_IRQ_SOURCE_INVALID] = dummy_irq_entry(),
 240         hpd_int_entry(0),
 241         hpd_int_entry(1),
 242         hpd_int_entry(2),
 243         hpd_int_entry(3),
 244         hpd_int_entry(4),
 245         hpd_int_entry(5),
 246         hpd_rx_int_entry(0),
 247         hpd_rx_int_entry(1),
 248         hpd_rx_int_entry(2),
 249         hpd_rx_int_entry(3),
 250         hpd_rx_int_entry(4),
 251         hpd_rx_int_entry(5),
 252         i2c_int_entry(1),
 253         i2c_int_entry(2),
 254         i2c_int_entry(3),
 255         i2c_int_entry(4),
 256         i2c_int_entry(5),
 257         i2c_int_entry(6),
 258         dp_sink_int_entry(1),
 259         dp_sink_int_entry(2),
 260         dp_sink_int_entry(3),
 261         dp_sink_int_entry(4),
 262         dp_sink_int_entry(5),
 263         dp_sink_int_entry(6),
 264         [DC_IRQ_SOURCE_TIMER] = dummy_irq_entry(),
 265         pflip_int_entry(0),
 266         pflip_int_entry(1),
 267         pflip_int_entry(2),
 268         pflip_int_entry(3),
 269         pflip_int_entry(4),
 270         pflip_int_entry(5),
 271         [DC_IRQ_SOURCE_PFLIP_UNDERLAY0] = dummy_irq_entry(),
 272         gpio_pad_int_entry(0),
 273         gpio_pad_int_entry(1),
 274         gpio_pad_int_entry(2),
 275         gpio_pad_int_entry(3),
 276         gpio_pad_int_entry(4),
 277         gpio_pad_int_entry(5),
 278         gpio_pad_int_entry(6),
 279         gpio_pad_int_entry(7),
 280         gpio_pad_int_entry(8),
 281         gpio_pad_int_entry(9),
 282         gpio_pad_int_entry(10),
 283         gpio_pad_int_entry(11),
 284         gpio_pad_int_entry(12),
 285         gpio_pad_int_entry(13),
 286         gpio_pad_int_entry(14),
 287         gpio_pad_int_entry(15),
 288         gpio_pad_int_entry(16),
 289         gpio_pad_int_entry(17),
 290         gpio_pad_int_entry(18),
 291         gpio_pad_int_entry(19),
 292         gpio_pad_int_entry(20),
 293         gpio_pad_int_entry(21),
 294         gpio_pad_int_entry(22),
 295         gpio_pad_int_entry(23),
 296         gpio_pad_int_entry(24),
 297         gpio_pad_int_entry(25),
 298         gpio_pad_int_entry(26),
 299         gpio_pad_int_entry(27),
 300         gpio_pad_int_entry(28),
 301         gpio_pad_int_entry(29),
 302         gpio_pad_int_entry(30),
 303         dc_underflow_int_entry(1),
 304         dc_underflow_int_entry(2),
 305         dc_underflow_int_entry(3),
 306         dc_underflow_int_entry(4),
 307         dc_underflow_int_entry(5),
 308         dc_underflow_int_entry(6),
 309         [DC_IRQ_SOURCE_DMCU_SCP] = dummy_irq_entry(),
 310         [DC_IRQ_SOURCE_VBIOS_SW] = dummy_irq_entry(),
 311         vupdate_int_entry(0),
 312         vupdate_int_entry(1),
 313         vupdate_int_entry(2),
 314         vupdate_int_entry(3),
 315         vupdate_int_entry(4),
 316         vupdate_int_entry(5),
 317         vblank_int_entry(0),
 318         vblank_int_entry(1),
 319         vblank_int_entry(2),
 320         vblank_int_entry(3),
 321         vblank_int_entry(4),
 322         vblank_int_entry(5),
 323
 324 };
 325
 326 enum dc_irq_source to_dal_irq_source_dce110(
 327                 struct irq_service *irq_service,
 328                 uint32_t src_id,
 329                 uint32_t ext_id)
 330 {
 331         switch (src_id) {
 332         case VISLANDS30_IV_SRCID_D1_VERTICAL_INTERRUPT0:
 333                 return DC_IRQ_SOURCE_VBLANK1;
 334         case VISLANDS30_IV_SRCID_D2_VERTICAL_INTERRUPT0:
 335                 return DC_IRQ_SOURCE_VBLANK2;
 336         case VISLANDS30_IV_SRCID_D3_VERTICAL_INTERRUPT0:
 337                 return DC_IRQ_SOURCE_VBLANK3;
 338         case VISLANDS30_IV_SRCID_D4_VERTICAL_INTERRUPT0:
 339                 return DC_IRQ_SOURCE_VBLANK4;
 340         case VISLANDS30_IV_SRCID_D5_VERTICAL_INTERRUPT0:
 341                 return DC_IRQ_SOURCE_VBLANK5;
 342         case VISLANDS30_IV_SRCID_D6_VERTICAL_INTERRUPT0:
 343                 return DC_IRQ_SOURCE_VBLANK6;
 344         case VISLANDS30_IV_SRCID_D1_V_UPDATE_INT:
 345                 return DC_IRQ_SOURCE_VUPDATE1;
 346         case VISLANDS30_IV_SRCID_D2_V_UPDATE_INT:
 347                 return DC_IRQ_SOURCE_VUPDATE2;
 348         case VISLANDS30_IV_SRCID_D3_V_UPDATE_INT:
 349                 return DC_IRQ_SOURCE_VUPDATE3;
 350         case VISLANDS30_IV_SRCID_D4_V_UPDATE_INT:
 351                 return DC_IRQ_SOURCE_VUPDATE4;
 352         case VISLANDS30_IV_SRCID_D5_V_UPDATE_INT:
 353                 return DC_IRQ_SOURCE_VUPDATE5;
 354         case VISLANDS30_IV_SRCID_D6_V_UPDATE_INT:
 355                 return DC_IRQ_SOURCE_VUPDATE6;
 356         case VISLANDS30_IV_SRCID_D1_GRPH_PFLIP:
 357                 return DC_IRQ_SOURCE_PFLIP1;
 358         case VISLANDS30_IV_SRCID_D2_GRPH_PFLIP:
 359                 return DC_IRQ_SOURCE_PFLIP2;
 360         case VISLANDS30_IV_SRCID_D3_GRPH_PFLIP:
 361                 return DC_IRQ_SOURCE_PFLIP3;
 362         case VISLANDS30_IV_SRCID_D4_GRPH_PFLIP:
 363                 return DC_IRQ_SOURCE_PFLIP4;
 364         case VISLANDS30_IV_SRCID_D5_GRPH_PFLIP:
 365                 return DC_IRQ_SOURCE_PFLIP5;
 366         case VISLANDS30_IV_SRCID_D6_GRPH_PFLIP:
 367                 return DC_IRQ_SOURCE_PFLIP6;
 368
 369         case VISLANDS30_IV_SRCID_HOTPLUG_DETECT_A:
 370                 /* generic src_id for all HPD and HPDRX interrupts */
 371                 switch (ext_id) {
 372                 case VISLANDS30_IV_EXTID_HOTPLUG_DETECT_A:
 373                         return DC_IRQ_SOURCE_HPD1;
 374                 case VISLANDS30_IV_EXTID_HOTPLUG_DETECT_B:
 375                         return DC_IRQ_SOURCE_HPD2;
 376                 case VISLANDS30_IV_EXTID_HOTPLUG_DETECT_C:
 377                         return DC_IRQ_SOURCE_HPD3;
 378                 case VISLANDS30_IV_EXTID_HOTPLUG_DETECT_D:
 379                         return DC_IRQ_SOURCE_HPD4;
 380                 case VISLANDS30_IV_EXTID_HOTPLUG_DETECT_E:
 381                         return DC_IRQ_SOURCE_HPD5;
 382                 case VISLANDS30_IV_EXTID_HOTPLUG_DETECT_F:
 383                         return DC_IRQ_SOURCE_HPD6;
 384                 case VISLANDS30_IV_EXTID_HPD_RX_A:
 385                         return DC_IRQ_SOURCE_HPD1RX;
 386                 case VISLANDS30_IV_EXTID_HPD_RX_B:
 387                         return DC_IRQ_SOURCE_HPD2RX;
 388                 case VISLANDS30_IV_EXTID_HPD_RX_C:
 389                         return DC_IRQ_SOURCE_HPD3RX;
 390                 case VISLANDS30_IV_EXTID_HPD_RX_D:
 391                         return DC_IRQ_SOURCE_HPD4RX;
 392                 case VISLANDS30_IV_EXTID_HPD_RX_E:
 393                         return DC_IRQ_SOURCE_HPD5RX;
 394                 case VISLANDS30_IV_EXTID_HPD_RX_F:
 395                         return DC_IRQ_SOURCE_HPD6RX;
 396                 default:
 397                         return DC_IRQ_SOURCE_INVALID;
 398                 }
 399                 break;
 400
 401         default:
 402                 return DC_IRQ_SOURCE_INVALID;
 403         }
 404 }
 405
 406 static const struct irq_service_funcs irq_service_funcs_dce110 = {
 407                 .to_dal_irq_source = to_dal_irq_source_dce110
 408 };
 409
 410 static void dce110_irq_construct(struct irq_service *irq_service,
 411                       struct irq_service_init_data *init_data)
 412 {
 413         dal_irq_service_construct(irq_service, init_data);
 414
 415         irq_service->info = irq_source_info_dce110;
 416         irq_service->funcs = &irq_service_funcs_dce110;
 417 }
 418
 419 struct irq_service *
 420 dal_irq_service_dce110_create(struct irq_service_init_data *init_data)
 421 {
 422         struct irq_service *irq_service = kzalloc(sizeof(*irq_service),
 423                                                   GFP_KERNEL);
 424
 425         if (!irq_service)
 426                 return NULL;
 427
 428         dce110_irq_construct(irq_service, init_data);
 429         return irq_service;
 430 }