drivers/gpu/drm/amd/display/dc/irq/dce120/irq_service_dce120.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 <linux/slab.h>
  27
  28 #include "dm_services.h"
  29
  30 #include "include/logger_interface.h"
  31
  32 #include "irq_service_dce120.h"
  33 #include "../dce110/irq_service_dce110.h"
  34
  35 #include "dce/dce_12_0_offset.h"
  36 #include "dce/dce_12_0_sh_mask.h"
  37 #include "soc15_hw_ip.h"
  38 #include "vega10_ip_offset.h"
  39
  40 #include "ivsrcid/ivsrcid_vislands30.h"
  41
  42 static bool hpd_ack(
  43         struct irq_service *irq_service,
  44         const struct irq_source_info *info)
  45 {
  46         uint32_t addr = info->status_reg;
  47         uint32_t value = dm_read_reg(irq_service->ctx, addr);
  48         uint32_t current_status =
  49                 get_reg_field_value(
  50                         value,
  51                         HPD0_DC_HPD_INT_STATUS,
  52                         DC_HPD_SENSE_DELAYED);
  53
  54         dal_irq_service_ack_generic(irq_service, info);
  55
  56         value = dm_read_reg(irq_service->ctx, info->enable_reg);
  57
  58         set_reg_field_value(
  59                 value,
  60                 current_status ? 0 : 1,
  61                 HPD0_DC_HPD_INT_CONTROL,
  62                 DC_HPD_INT_POLARITY);
  63
  64         dm_write_reg(irq_service->ctx, info->enable_reg, value);
  65
  66         return true;
  67 }
  68
  69 static const struct irq_source_info_funcs hpd_irq_info_funcs = {
  70         .set = NULL,
  71         .ack = hpd_ack
  72 };
  73
  74 static const struct irq_source_info_funcs hpd_rx_irq_info_funcs = {
  75         .set = NULL,
  76         .ack = NULL
  77 };
  78
  79 static const struct irq_source_info_funcs pflip_irq_info_funcs = {
  80         .set = NULL,
  81         .ack = NULL
  82 };
  83
  84 static const struct irq_source_info_funcs vblank_irq_info_funcs = {
  85         .set = dce110_vblank_set,
  86         .ack = NULL
  87 };
  88
  89 static const struct irq_source_info_funcs vupdate_irq_info_funcs = {
  90         .set = NULL,
  91         .ack = NULL
  92 };
  93
  94 #define BASE_INNER(seg) \
  95         DCE_BASE__INST0_SEG ## seg
  96
  97 #define BASE(seg) \
  98         BASE_INNER(seg)
  99
 100 #define SRI(reg_name, block, id)\
 101         BASE(mm ## block ## id ## _ ## reg_name ## _BASE_IDX) + \
 102                         mm ## block ## id ## _ ## reg_name
 103
 104
 105 #define IRQ_REG_ENTRY(block, reg_num, reg1, mask1, reg2, mask2)\
 106         .enable_reg = SRI(reg1, block, reg_num),\
 107         .enable_mask = \
 108                 block ## reg_num ## _ ## reg1 ## __ ## mask1 ## _MASK,\
 109         .enable_value = {\
 110                 block ## reg_num ## _ ## reg1 ## __ ## mask1 ## _MASK,\
 111                 ~block ## reg_num ## _ ## reg1 ## __ ## mask1 ## _MASK \
 112         },\
 113         .ack_reg = SRI(reg2, block, reg_num),\
 114         .ack_mask = \
 115                 block ## reg_num ## _ ## reg2 ## __ ## mask2 ## _MASK,\
 116         .ack_value = \
 117                 block ## reg_num ## _ ## reg2 ## __ ## mask2 ## _MASK \
 118
 119 #define hpd_int_entry(reg_num)\
 120         [DC_IRQ_SOURCE_HPD1 + reg_num] = {\
 121                 IRQ_REG_ENTRY(HPD, reg_num,\
 122                         DC_HPD_INT_CONTROL, DC_HPD_INT_EN,\
 123                         DC_HPD_INT_CONTROL, DC_HPD_INT_ACK),\
 124                 .status_reg = SRI(DC_HPD_INT_STATUS, HPD, reg_num),\
 125                 .funcs = &hpd_irq_info_funcs\
 126         }
 127
 128 #define hpd_rx_int_entry(reg_num)\
 129         [DC_IRQ_SOURCE_HPD1RX + reg_num] = {\
 130                 IRQ_REG_ENTRY(HPD, reg_num,\
 131                         DC_HPD_INT_CONTROL, DC_HPD_RX_INT_EN,\
 132                         DC_HPD_INT_CONTROL, DC_HPD_RX_INT_ACK),\
 133                 .status_reg = SRI(DC_HPD_INT_STATUS, HPD, reg_num),\
 134                 .funcs = &hpd_rx_irq_info_funcs\
 135         }
 136 #define pflip_int_entry(reg_num)\
 137         [DC_IRQ_SOURCE_PFLIP1 + reg_num] = {\
 138                 IRQ_REG_ENTRY(DCP, reg_num, \
 139                         GRPH_INTERRUPT_CONTROL, GRPH_PFLIP_INT_MASK, \
 140                         GRPH_INTERRUPT_STATUS, GRPH_PFLIP_INT_CLEAR),\
 141                 .status_reg = SRI(GRPH_INTERRUPT_STATUS, DCP, reg_num),\
 142                 .funcs = &pflip_irq_info_funcs\
 143         }
 144
 145 #define vupdate_int_entry(reg_num)\
 146         [DC_IRQ_SOURCE_VUPDATE1 + reg_num] = {\
 147                 IRQ_REG_ENTRY(CRTC, reg_num,\
 148                         CRTC_INTERRUPT_CONTROL, CRTC_V_UPDATE_INT_MSK,\
 149                         CRTC_V_UPDATE_INT_STATUS, CRTC_V_UPDATE_INT_CLEAR),\
 150                 .funcs = &vupdate_irq_info_funcs\
 151         }
 152
 153 #define vblank_int_entry(reg_num)\
 154         [DC_IRQ_SOURCE_VBLANK1 + reg_num] = {\
 155                 IRQ_REG_ENTRY(CRTC, reg_num,\
 156                                 CRTC_VERTICAL_INTERRUPT0_CONTROL, CRTC_VERTICAL_INTERRUPT0_INT_ENABLE,\
 157                                 CRTC_VERTICAL_INTERRUPT0_CONTROL, CRTC_VERTICAL_INTERRUPT0_CLEAR),\
 158                 .funcs = &vblank_irq_info_funcs,\
 159                 .src_id = VISLANDS30_IV_SRCID_D1_VERTICAL_INTERRUPT0 + reg_num\
 160         }
 161
 162 #define dummy_irq_entry() \
 163         {\
 164                 .funcs = &dummy_irq_info_funcs\
 165         }
 166
 167 #define i2c_int_entry(reg_num) \
 168         [DC_IRQ_SOURCE_I2C_DDC ## reg_num] = dummy_irq_entry()
 169
 170 #define dp_sink_int_entry(reg_num) \
 171         [DC_IRQ_SOURCE_DPSINK ## reg_num] = dummy_irq_entry()
 172
 173 #define gpio_pad_int_entry(reg_num) \
 174         [DC_IRQ_SOURCE_GPIOPAD ## reg_num] = dummy_irq_entry()
 175
 176 #define dc_underflow_int_entry(reg_num) \
 177         [DC_IRQ_SOURCE_DC ## reg_num ## UNDERFLOW] = dummy_irq_entry()
 178
 179 static const struct irq_source_info_funcs dummy_irq_info_funcs = {
 180         .set = dal_irq_service_dummy_set,
 181         .ack = dal_irq_service_dummy_ack
 182 };
 183
 184 static const struct irq_source_info
 185 irq_source_info_dce120[DAL_IRQ_SOURCES_NUMBER] = {
 186         [DC_IRQ_SOURCE_INVALID] = dummy_irq_entry(),
 187         hpd_int_entry(0),
 188         hpd_int_entry(1),
 189         hpd_int_entry(2),
 190         hpd_int_entry(3),
 191         hpd_int_entry(4),
 192         hpd_int_entry(5),
 193         hpd_rx_int_entry(0),
 194         hpd_rx_int_entry(1),
 195         hpd_rx_int_entry(2),
 196         hpd_rx_int_entry(3),
 197         hpd_rx_int_entry(4),
 198         hpd_rx_int_entry(5),
 199         i2c_int_entry(1),
 200         i2c_int_entry(2),
 201         i2c_int_entry(3),
 202         i2c_int_entry(4),
 203         i2c_int_entry(5),
 204         i2c_int_entry(6),
 205         dp_sink_int_entry(1),
 206         dp_sink_int_entry(2),
 207         dp_sink_int_entry(3),
 208         dp_sink_int_entry(4),
 209         dp_sink_int_entry(5),
 210         dp_sink_int_entry(6),
 211         [DC_IRQ_SOURCE_TIMER] = dummy_irq_entry(),
 212         pflip_int_entry(0),
 213         pflip_int_entry(1),
 214         pflip_int_entry(2),
 215         pflip_int_entry(3),
 216         pflip_int_entry(4),
 217         pflip_int_entry(5),
 218         [DC_IRQ_SOURCE_PFLIP_UNDERLAY0] = dummy_irq_entry(),
 219         gpio_pad_int_entry(0),
 220         gpio_pad_int_entry(1),
 221         gpio_pad_int_entry(2),
 222         gpio_pad_int_entry(3),
 223         gpio_pad_int_entry(4),
 224         gpio_pad_int_entry(5),
 225         gpio_pad_int_entry(6),
 226         gpio_pad_int_entry(7),
 227         gpio_pad_int_entry(8),
 228         gpio_pad_int_entry(9),
 229         gpio_pad_int_entry(10),
 230         gpio_pad_int_entry(11),
 231         gpio_pad_int_entry(12),
 232         gpio_pad_int_entry(13),
 233         gpio_pad_int_entry(14),
 234         gpio_pad_int_entry(15),
 235         gpio_pad_int_entry(16),
 236         gpio_pad_int_entry(17),
 237         gpio_pad_int_entry(18),
 238         gpio_pad_int_entry(19),
 239         gpio_pad_int_entry(20),
 240         gpio_pad_int_entry(21),
 241         gpio_pad_int_entry(22),
 242         gpio_pad_int_entry(23),
 243         gpio_pad_int_entry(24),
 244         gpio_pad_int_entry(25),
 245         gpio_pad_int_entry(26),
 246         gpio_pad_int_entry(27),
 247         gpio_pad_int_entry(28),
 248         gpio_pad_int_entry(29),
 249         gpio_pad_int_entry(30),
 250         dc_underflow_int_entry(1),
 251         dc_underflow_int_entry(2),
 252         dc_underflow_int_entry(3),
 253         dc_underflow_int_entry(4),
 254         dc_underflow_int_entry(5),
 255         dc_underflow_int_entry(6),
 256         [DC_IRQ_SOURCE_DMCU_SCP] = dummy_irq_entry(),
 257         [DC_IRQ_SOURCE_VBIOS_SW] = dummy_irq_entry(),
 258         vupdate_int_entry(0),
 259         vupdate_int_entry(1),
 260         vupdate_int_entry(2),
 261         vupdate_int_entry(3),
 262         vupdate_int_entry(4),
 263         vupdate_int_entry(5),
 264         vblank_int_entry(0),
 265         vblank_int_entry(1),
 266         vblank_int_entry(2),
 267         vblank_int_entry(3),
 268         vblank_int_entry(4),
 269         vblank_int_entry(5),
 270 };
 271
 272 static const struct irq_service_funcs irq_service_funcs_dce120 = {
 273                 .to_dal_irq_source = to_dal_irq_source_dce110
 274 };
 275
 276 static void construct(
 277         struct irq_service *irq_service,
 278         struct irq_service_init_data *init_data)
 279 {
 280         dal_irq_service_construct(irq_service, init_data);
 281
 282         irq_service->info = irq_source_info_dce120;
 283         irq_service->funcs = &irq_service_funcs_dce120;
 284 }
 285
 286 struct irq_service *dal_irq_service_dce120_create(
 287         struct irq_service_init_data *init_data)
 288 {
 289         struct irq_service *irq_service = kzalloc(sizeof(*irq_service),
 290                                                   GFP_KERNEL);
 291
 292         if (!irq_service)
 293                 return NULL;
 294
 295         construct(irq_service, init_data);
 296         return irq_service;
 297 }