drivers/gpu/drm/amd/display/dc/irq/dcn20/irq_service_dcn20.c

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