drivers/gpu/drm/amd/display/dc/dce120/dce120_hw_sequencer.c

   1 /*
   2  * Copyright 2015 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 #include "dc.h"
  28 #include "core_types.h"
  29 #include "dce120_hw_sequencer.h"
  30 #include "dce/dce_hwseq.h"
  31
  32 #include "dce110/dce110_hw_sequencer.h"
  33
  34 #include "dce/dce_12_0_offset.h"
  35 #include "dce/dce_12_0_sh_mask.h"
  36 #include "soc15_hw_ip.h"
  37 #include "vega10_ip_offset.h"
  38 #include "reg_helper.h"
  39
  40 #define CTX \
  41         hws->ctx
  42 #define REG(reg)\
  43         hws->regs->reg
  44
  45 #undef FN
  46 #define FN(reg_name, field_name) \
  47         hws->shifts->field_name, hws->masks->field_name
  48
  49 struct dce120_hw_seq_reg_offsets {
  50         uint32_t crtc;
  51 };
  52
  53 static const struct dce120_hw_seq_reg_offsets reg_offsets[] = {
  54 {
  55         .crtc = (mmCRTC0_CRTC_GSL_CONTROL - mmCRTC0_CRTC_GSL_CONTROL),
  56 },
  57 {
  58         .crtc = (mmCRTC1_CRTC_GSL_CONTROL - mmCRTC0_CRTC_GSL_CONTROL),
  59 },
  60 {
  61         .crtc = (mmCRTC2_CRTC_GSL_CONTROL - mmCRTC0_CRTC_GSL_CONTROL),
  62 },
  63 {
  64         .crtc = (mmCRTC3_CRTC_GSL_CONTROL - mmCRTC0_CRTC_GSL_CONTROL),
  65 },
  66 {
  67         .crtc = (mmCRTC4_CRTC_GSL_CONTROL - mmCRTC0_CRTC_GSL_CONTROL),
  68 },
  69 {
  70         .crtc = (mmCRTC5_CRTC_GSL_CONTROL - mmCRTC0_CRTC_GSL_CONTROL),
  71 }
  72 };
  73
  74 #define HW_REG_CRTC(reg, id)\
  75         (reg + reg_offsets[id].crtc)
  76
  77 #define CNTL_ID(controller_id)\
  78         controller_id
  79 /*******************************************************************************
  80  * Private definitions
  81  ******************************************************************************/
  82 #if 0
  83 static void dce120_init_pte(struct dc_context *ctx, uint8_t controller_id)
  84 {
  85         uint32_t addr;
  86         uint32_t value = 0;
  87         uint32_t chunk_int = 0;
  88         uint32_t chunk_mul = 0;
  89 /*
  90         addr = mmDCP0_DVMM_PTE_CONTROL + controller_id *
  91                         (mmDCP1_DVMM_PTE_CONTROL- mmDCP0_DVMM_PTE_CONTROL);
  92
  93         value = dm_read_reg(ctx, addr);
  94
  95         set_reg_field_value(
  96                         value, 0, DCP, controller_id,
  97                         DVMM_PTE_CONTROL,
  98                         DVMM_USE_SINGLE_PTE);
  99
 100         set_reg_field_value_soc15(
 101                         value, 1, DCP, controller_id,
 102                         DVMM_PTE_CONTROL,
 103                         DVMM_PTE_BUFFER_MODE0);
 104
 105         set_reg_field_value_soc15(
 106                         value, 1, DCP, controller_id,
 107                         DVMM_PTE_CONTROL,
 108                         DVMM_PTE_BUFFER_MODE1);
 109
 110         dm_write_reg(ctx, addr, value);*/
 111
 112         addr = mmDVMM_PTE_REQ;
 113         value = dm_read_reg(ctx, addr);
 114
 115         chunk_int = get_reg_field_value(
 116                 value,
 117                 DVMM_PTE_REQ,
 118                 HFLIP_PTEREQ_PER_CHUNK_INT);
 119
 120         chunk_mul = get_reg_field_value(
 121                 value,
 122                 DVMM_PTE_REQ,
 123                 HFLIP_PTEREQ_PER_CHUNK_MULTIPLIER);
 124
 125         if (chunk_int != 0x4 || chunk_mul != 0x4) {
 126
 127                 set_reg_field_value(
 128                         value,
 129                         255,
 130                         DVMM_PTE_REQ,
 131                         MAX_PTEREQ_TO_ISSUE);
 132
 133                 set_reg_field_value(
 134                         value,
 135                         4,
 136                         DVMM_PTE_REQ,
 137                         HFLIP_PTEREQ_PER_CHUNK_INT);
 138
 139                 set_reg_field_value(
 140                         value,
 141                         4,
 142                         DVMM_PTE_REQ,
 143                         HFLIP_PTEREQ_PER_CHUNK_MULTIPLIER);
 144
 145                 dm_write_reg(ctx, addr, value);
 146         }
 147 }
 148 #endif
 149
 150 static bool dce120_enable_display_power_gating(
 151         struct dc *dc,
 152         uint8_t controller_id,
 153         struct dc_bios *dcb,
 154         enum pipe_gating_control power_gating)
 155 {
 156         /* disable for bringup */
 157 #if 0
 158         enum bp_result bp_result = BP_RESULT_OK;
 159         enum bp_pipe_control_action cntl;
 160         struct dc_context *ctx = dc->ctx;
 161
 162         if (IS_FPGA_MAXIMUS_DC(ctx->dce_environment))
 163                 return true;
 164
 165         if (power_gating == PIPE_GATING_CONTROL_INIT)
 166                 cntl = ASIC_PIPE_INIT;
 167         else if (power_gating == PIPE_GATING_CONTROL_ENABLE)
 168                 cntl = ASIC_PIPE_ENABLE;
 169         else
 170                 cntl = ASIC_PIPE_DISABLE;
 171
 172         if (power_gating != PIPE_GATING_CONTROL_INIT || controller_id == 0) {
 173
 174                 bp_result = dcb->funcs->enable_disp_power_gating(
 175                                                 dcb, controller_id + 1, cntl);
 176
 177                 /* Revert MASTER_UPDATE_MODE to 0 because bios sets it 2
 178                  * by default when command table is called
 179                  */
 180                 dm_write_reg(ctx,
 181                         HW_REG_CRTC(mmCRTC0_CRTC_MASTER_UPDATE_MODE, controller_id),
 182                         0);
 183         }
 184
 185         if (power_gating != PIPE_GATING_CONTROL_ENABLE)
 186                 dce120_init_pte(ctx, controller_id);
 187
 188         if (bp_result == BP_RESULT_OK)
 189                 return true;
 190         else
 191                 return false;
 192 #endif
 193         return false;
 194 }
 195
 196 static void dce120_update_dchub(
 197         struct dce_hwseq *hws,
 198         struct dchub_init_data *dh_data)
 199 {
 200         /* TODO: port code from dal2 */
 201         switch (dh_data->fb_mode) {
 202         case FRAME_BUFFER_MODE_ZFB_ONLY:
 203                 /*For ZFB case need to put DCHUB FB BASE and TOP upside down to indicate ZFB mode*/
 204                 REG_UPDATE_2(DCHUB_FB_LOCATION,
 205                                 FB_TOP, 0,
 206                                 FB_BASE, 0x0FFFF);
 207
 208                 REG_UPDATE(DCHUB_AGP_BASE,
 209                                 AGP_BASE, dh_data->zfb_phys_addr_base >> 22);
 210
 211                 REG_UPDATE(DCHUB_AGP_BOT,
 212                                 AGP_BOT, dh_data->zfb_mc_base_addr >> 22);
 213
 214                 REG_UPDATE(DCHUB_AGP_TOP,
 215                                 AGP_TOP, (dh_data->zfb_mc_base_addr + dh_data->zfb_size_in_byte - 1) >> 22);
 216                 break;
 217         case FRAME_BUFFER_MODE_MIXED_ZFB_AND_LOCAL:
 218                 /*Should not touch FB LOCATION (done by VBIOS on AsicInit table)*/
 219                 REG_UPDATE(DCHUB_AGP_BASE,
 220                                 AGP_BASE, dh_data->zfb_phys_addr_base >> 22);
 221
 222                 REG_UPDATE(DCHUB_AGP_BOT,
 223                                 AGP_BOT, dh_data->zfb_mc_base_addr >> 22);
 224
 225                 REG_UPDATE(DCHUB_AGP_TOP,
 226                                 AGP_TOP, (dh_data->zfb_mc_base_addr + dh_data->zfb_size_in_byte - 1) >> 22);
 227                 break;
 228         case FRAME_BUFFER_MODE_LOCAL_ONLY:
 229                 /*Should not touch FB LOCATION (done by VBIOS on AsicInit table)*/
 230                 REG_UPDATE(DCHUB_AGP_BASE,
 231                                 AGP_BASE, 0);
 232
 233                 REG_UPDATE(DCHUB_AGP_BOT,
 234                                 AGP_BOT, 0x03FFFF);
 235
 236                 REG_UPDATE(DCHUB_AGP_TOP,
 237                                 AGP_TOP, 0);
 238                 break;
 239         default:
 240                 break;
 241         }
 242
 243         dh_data->dchub_initialzied = true;
 244         dh_data->dchub_info_valid = false;
 245 }
 246
 247 /**
 248  * dce121_xgmi_enabled() - Check if xGMI is enabled
 249  * @hws: DCE hardware sequencer object
 250  *
 251  * Return true if xGMI is enabled. False otherwise.
 252  */
 253 bool dce121_xgmi_enabled(struct dce_hwseq *hws)
 254 {
 255         uint32_t pf_max_region;
 256
 257         REG_GET(MC_VM_XGMI_LFB_CNTL, PF_MAX_REGION, &pf_max_region);
 258         /* PF_MAX_REGION == 0 means xgmi is disabled */
 259         return !!pf_max_region;
 260 }
 261
 262 void dce120_hw_sequencer_construct(struct dc *dc)
 263 {
 264         /* All registers used by dce11.2 match those in dce11 in offset and
 265          * structure
 266          */
 267         dce110_hw_sequencer_construct(dc);
 268         dc->hwseq->funcs.enable_display_power_gating = dce120_enable_display_power_gating;
 269         dc->hwss.update_dchub = dce120_update_dchub;
 270 }
 271