drivers/gpu/drm/amd/display/dc/dce60/dce60_timing_generator.c

   1 /*
   2  * Copyright 2020 Mauro Rossi <[email protected]>
   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 DCE6 register header files */
  29 #include "dce/dce_6_0_d.h"
  30 #include "dce/dce_6_0_sh_mask.h"
  31
  32 #include "dc_types.h"
  33
  34 #include "include/grph_object_id.h"
  35 #include "include/logger_interface.h"
  36 #include "../dce110/dce110_timing_generator.h"
  37 #include "dce60_timing_generator.h"
  38
  39 #include "timing_generator.h"
  40
  41 enum black_color_format {
  42         BLACK_COLOR_FORMAT_RGB_FULLRANGE = 0,   /* used as index in array */
  43         BLACK_COLOR_FORMAT_RGB_LIMITED,
  44         BLACK_COLOR_FORMAT_YUV_TV,
  45         BLACK_COLOR_FORMAT_YUV_CV,
  46         BLACK_COLOR_FORMAT_YUV_SUPER_AA,
  47
  48         BLACK_COLOR_FORMAT_COUNT
  49 };
  50
  51 static const struct dce110_timing_generator_offsets reg_offsets[] = {
  52 {
  53         .crtc = (mmCRTC0_DCFE_MEM_LIGHT_SLEEP_CNTL - mmCRTC0_DCFE_MEM_LIGHT_SLEEP_CNTL),
  54         .dcp = (mmDCP0_GRPH_CONTROL - mmDCP0_GRPH_CONTROL),
  55 },
  56 {
  57         .crtc = (mmCRTC1_DCFE_MEM_LIGHT_SLEEP_CNTL - mmCRTC0_DCFE_MEM_LIGHT_SLEEP_CNTL),
  58         .dcp = (mmDCP1_GRPH_CONTROL - mmDCP0_GRPH_CONTROL),
  59 },
  60 {
  61         .crtc = (mmCRTC2_DCFE_MEM_LIGHT_SLEEP_CNTL - mmCRTC0_DCFE_MEM_LIGHT_SLEEP_CNTL),
  62         .dcp = (mmDCP2_GRPH_CONTROL - mmDCP0_GRPH_CONTROL),
  63 },
  64 {
  65         .crtc = (mmCRTC3_DCFE_MEM_LIGHT_SLEEP_CNTL - mmCRTC0_DCFE_MEM_LIGHT_SLEEP_CNTL),
  66         .dcp = (mmDCP3_GRPH_CONTROL - mmDCP0_GRPH_CONTROL),
  67 },
  68 {
  69         .crtc = (mmCRTC4_DCFE_MEM_LIGHT_SLEEP_CNTL - mmCRTC0_DCFE_MEM_LIGHT_SLEEP_CNTL),
  70         .dcp = (mmDCP4_GRPH_CONTROL - mmDCP0_GRPH_CONTROL),
  71 },
  72 {
  73         .crtc = (mmCRTC5_DCFE_MEM_LIGHT_SLEEP_CNTL - mmCRTC0_DCFE_MEM_LIGHT_SLEEP_CNTL),
  74         .dcp = (mmDCP5_GRPH_CONTROL - mmDCP0_GRPH_CONTROL),
  75 }
  76 };
  77
  78 #define NUMBER_OF_FRAME_TO_WAIT_ON_TRIGGERED_RESET 10
  79
  80 #define MAX_H_TOTAL (CRTC_H_TOTAL__CRTC_H_TOTAL_MASK + 1)
  81 #define MAX_V_TOTAL (CRTC_V_TOTAL__CRTC_V_TOTAL_MASKhw + 1)
  82
  83 #define CRTC_REG(reg) (reg + tg110->offsets.crtc)
  84 #define DCP_REG(reg) (reg + tg110->offsets.dcp)
  85 #define DMIF_REG(reg) (reg + tg110->offsets.dmif)
  86
  87 static void program_pix_dur(struct timing_generator *tg, uint32_t pix_clk_100hz)
  88 {
  89         uint64_t pix_dur;
  90         uint32_t addr = mmDMIF_PG0_DPG_PIPE_ARBITRATION_CONTROL1
  91                                         + DCE110TG_FROM_TG(tg)->offsets.dmif;
  92         uint32_t value = dm_read_reg(tg->ctx, addr);
  93
  94         if (pix_clk_100hz == 0)
  95                 return;
  96
  97         pix_dur = div_u64(10000000000ull, pix_clk_100hz);
  98
  99         set_reg_field_value(
 100                 value,
 101                 pix_dur,
 102                 DPG_PIPE_ARBITRATION_CONTROL1,
 103                 PIXEL_DURATION);
 104
 105         dm_write_reg(tg->ctx, addr, value);
 106 }
 107
 108 static void program_timing(struct timing_generator *tg,
 109         const struct dc_crtc_timing *timing,
 110         int vready_offset,
 111         int vstartup_start,
 112         int vupdate_offset,
 113         int vupdate_width,
 114         int pstate_keepout,
 115         const enum signal_type signal,
 116         bool use_vbios)
 117 {
 118         if (!use_vbios)
 119                 program_pix_dur(tg, timing->pix_clk_100hz);
 120
 121         dce110_tg_program_timing(tg, timing, 0, 0, 0, 0, 0, 0, use_vbios);
 122 }
 123
 124 static void dce60_timing_generator_enable_advanced_request(
 125         struct timing_generator *tg,
 126         bool enable,
 127         const struct dc_crtc_timing *timing)
 128 {
 129         struct dce110_timing_generator *tg110 = DCE110TG_FROM_TG(tg);
 130         uint32_t addr = CRTC_REG(mmCRTC_START_LINE_CONTROL);
 131         uint32_t value = dm_read_reg(tg->ctx, addr);
 132         /* DCE6 has CRTC_PREFETCH_EN bit in CRTC_CONTROL register */
 133         uint32_t addr2 = CRTC_REG(mmCRTC_CONTROL);
 134         uint32_t value2 = dm_read_reg(tg->ctx, addr2);
 135
 136         /* DCE6 does not support CRTC_LEGACY_REQUESTOR_EN bit
 137            so here is not possible to set bit based on enable argument */
 138
 139         if ((timing->v_sync_width + timing->v_front_porch) <= 3) {
 140                 set_reg_field_value(
 141                         value,
 142                         3,
 143                         CRTC_START_LINE_CONTROL,
 144                         CRTC_ADVANCED_START_LINE_POSITION);
 145                 set_reg_field_value(
 146                         value2,
 147                         0,
 148                         CRTC_CONTROL,
 149                         CRTC_PREFETCH_EN);
 150         } else {
 151                 set_reg_field_value(
 152                         value,
 153                         4,
 154                         CRTC_START_LINE_CONTROL,
 155                         CRTC_ADVANCED_START_LINE_POSITION);
 156                 set_reg_field_value(
 157                         value2,
 158                         1,
 159                         CRTC_CONTROL,
 160                         CRTC_PREFETCH_EN);
 161         }
 162
 163         set_reg_field_value(
 164                 value,
 165                 1,
 166                 CRTC_START_LINE_CONTROL,
 167                 CRTC_PROGRESSIVE_START_LINE_EARLY);
 168
 169         set_reg_field_value(
 170                 value,
 171                 1,
 172                 CRTC_START_LINE_CONTROL,
 173                 CRTC_INTERLACE_START_LINE_EARLY);
 174
 175         dm_write_reg(tg->ctx, addr, value);
 176         dm_write_reg(tg->ctx, addr2, value2);
 177 }
 178
 179 static bool dce60_is_tg_enabled(struct timing_generator *tg)
 180 {
 181         uint32_t addr = 0;
 182         uint32_t value = 0;
 183         uint32_t field = 0;
 184         struct dce110_timing_generator *tg110 = DCE110TG_FROM_TG(tg);
 185
 186         addr = CRTC_REG(mmCRTC_CONTROL);
 187         value = dm_read_reg(tg->ctx, addr);
 188         field = get_reg_field_value(value, CRTC_CONTROL,
 189                                     CRTC_CURRENT_MASTER_EN_STATE);
 190         return field == 1;
 191 }
 192
 193 static bool dce60_configure_crc(struct timing_generator *tg,
 194                                 const struct crc_params *params)
 195 {
 196         /* Cannot configure crc on a CRTC that is disabled */
 197         if (!dce60_is_tg_enabled(tg))
 198                 return false;
 199
 200         /* DCE6 has no CRTC_CRC_CNTL register, nothing to do */
 201
 202         return true;
 203 }
 204
 205 static const struct timing_generator_funcs dce60_tg_funcs = {
 206                 .validate_timing = dce110_tg_validate_timing,
 207                 .program_timing = program_timing,
 208                 .enable_crtc = dce110_timing_generator_enable_crtc,
 209                 .disable_crtc = dce110_timing_generator_disable_crtc,
 210                 .is_counter_moving = dce110_timing_generator_is_counter_moving,
 211                 .get_position = dce110_timing_generator_get_position,
 212                 .get_frame_count = dce110_timing_generator_get_vblank_counter,
 213                 .get_scanoutpos = dce110_timing_generator_get_crtc_scanoutpos,
 214                 .set_early_control = dce110_timing_generator_set_early_control,
 215                 .wait_for_state = dce110_tg_wait_for_state,
 216                 .set_blank = dce110_tg_set_blank,
 217                 .is_blanked = dce110_tg_is_blanked,
 218                 .set_colors = dce110_tg_set_colors,
 219                 .set_overscan_blank_color =
 220                                 dce110_timing_generator_set_overscan_color_black,
 221                 .set_blank_color = dce110_timing_generator_program_blank_color,
 222                 .disable_vga = dce110_timing_generator_disable_vga,
 223                 .did_triggered_reset_occur =
 224                                 dce110_timing_generator_did_triggered_reset_occur,
 225                 .setup_global_swap_lock =
 226                                 dce110_timing_generator_setup_global_swap_lock,
 227                 .enable_reset_trigger = dce110_timing_generator_enable_reset_trigger,
 228                 .disable_reset_trigger = dce110_timing_generator_disable_reset_trigger,
 229                 .tear_down_global_swap_lock =
 230                                 dce110_timing_generator_tear_down_global_swap_lock,
 231                 .set_drr = dce110_timing_generator_set_drr,
 232                 .set_static_screen_control =
 233                         dce110_timing_generator_set_static_screen_control,
 234                 .set_test_pattern = dce110_timing_generator_set_test_pattern,
 235                 .arm_vert_intr = dce110_arm_vert_intr,
 236
 237                 /* DCE6.0 overrides */
 238                 .enable_advanced_request =
 239                                 dce60_timing_generator_enable_advanced_request,
 240                 .configure_crc = dce60_configure_crc,
 241                 .get_crc = dce110_get_crc,
 242 };
 243
 244 void dce60_timing_generator_construct(
 245         struct dce110_timing_generator *tg110,
 246         struct dc_context *ctx,
 247         uint32_t instance,
 248         const struct dce110_timing_generator_offsets *offsets)
 249 {
 250         tg110->controller_id = CONTROLLER_ID_D0 + instance;
 251         tg110->base.inst = instance;
 252         tg110->offsets = *offsets;
 253         tg110->derived_offsets = reg_offsets[instance];
 254
 255         tg110->base.funcs = &dce60_tg_funcs;
 256
 257         tg110->base.ctx = ctx;
 258         tg110->base.bp = ctx->dc_bios;
 259
 260         tg110->max_h_total = CRTC_H_TOTAL__CRTC_H_TOTAL_MASK + 1;
 261         tg110->max_v_total = CRTC_V_TOTAL__CRTC_V_TOTAL_MASK + 1;
 262
 263         tg110->min_h_blank = 56;
 264         tg110->min_h_front_porch = 4;
 265         tg110->min_h_back_porch = 4;
 266 }
 267