drivers/gpu/drm/amd/amdgpu/nbio_v4_3.c

   1 /*
   2  * Copyright 2021 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  */
  23 #include "amdgpu.h"
  24 #include "amdgpu_atombios.h"
  25 #include "nbio_v4_3.h"
  26
  27 #include "nbio/nbio_4_3_0_offset.h"
  28 #include "nbio/nbio_4_3_0_sh_mask.h"
  29 #include <uapi/linux/kfd_ioctl.h>
  30
  31 static void nbio_v4_3_remap_hdp_registers(struct amdgpu_device *adev)
  32 {
  33         WREG32_SOC15(NBIO, 0, regBIF_BX0_REMAP_HDP_MEM_FLUSH_CNTL,
  34                 adev->rmmio_remap.reg_offset + KFD_MMIO_REMAP_HDP_MEM_FLUSH_CNTL);
  35         WREG32_SOC15(NBIO, 0, regBIF_BX0_REMAP_HDP_REG_FLUSH_CNTL,
  36                 adev->rmmio_remap.reg_offset + KFD_MMIO_REMAP_HDP_REG_FLUSH_CNTL);
  37 }
  38
  39 static u32 nbio_v4_3_get_rev_id(struct amdgpu_device *adev)
  40 {
  41         u32 tmp = RREG32_SOC15(NBIO, 0, regRCC_STRAP0_RCC_DEV0_EPF0_STRAP0);
  42
  43         tmp &= RCC_STRAP0_RCC_DEV0_EPF0_STRAP0__STRAP_ATI_REV_ID_DEV0_F0_MASK;
  44         tmp >>= RCC_STRAP0_RCC_DEV0_EPF0_STRAP0__STRAP_ATI_REV_ID_DEV0_F0__SHIFT;
  45
  46         return tmp;
  47 }
  48
  49 static void nbio_v4_3_mc_access_enable(struct amdgpu_device *adev, bool enable)
  50 {
  51         if (enable)
  52                 WREG32_SOC15(NBIO, 0, regBIF_BX0_BIF_FB_EN,
  53                              BIF_BX0_BIF_FB_EN__FB_READ_EN_MASK |
  54                              BIF_BX0_BIF_FB_EN__FB_WRITE_EN_MASK);
  55         else
  56                 WREG32_SOC15(NBIO, 0, regBIF_BX0_BIF_FB_EN, 0);
  57 }
  58
  59 static u32 nbio_v4_3_get_memsize(struct amdgpu_device *adev)
  60 {
  61         return RREG32_SOC15(NBIO, 0, regRCC_DEV0_EPF0_RCC_CONFIG_MEMSIZE);
  62 }
  63
  64 static void nbio_v4_3_sdma_doorbell_range(struct amdgpu_device *adev, int instance,
  65                                           bool use_doorbell, int doorbell_index,
  66                                           int doorbell_size)
  67 {
  68         if (instance == 0) {
  69                 u32 doorbell_range = RREG32_SOC15(NBIO, 0, regS2A_DOORBELL_ENTRY_2_CTRL);
  70
  71                 if (use_doorbell) {
  72                         doorbell_range = REG_SET_FIELD(doorbell_range,
  73                                                        S2A_DOORBELL_ENTRY_2_CTRL,
  74                                                        S2A_DOORBELL_PORT2_ENABLE,
  75                                                        0x1);
  76                         doorbell_range = REG_SET_FIELD(doorbell_range,
  77                                                        S2A_DOORBELL_ENTRY_2_CTRL,
  78                                                        S2A_DOORBELL_PORT2_AWID,
  79                                                        0xe);
  80                         doorbell_range = REG_SET_FIELD(doorbell_range,
  81                                                        S2A_DOORBELL_ENTRY_2_CTRL,
  82                                                        S2A_DOORBELL_PORT2_RANGE_OFFSET,
  83                                                        doorbell_index);
  84                         doorbell_range = REG_SET_FIELD(doorbell_range,
  85                                                        S2A_DOORBELL_ENTRY_2_CTRL,
  86                                                        S2A_DOORBELL_PORT2_RANGE_SIZE,
  87                                                        doorbell_size);
  88                         doorbell_range = REG_SET_FIELD(doorbell_range,
  89                                                        S2A_DOORBELL_ENTRY_2_CTRL,
  90                                                        S2A_DOORBELL_PORT2_AWADDR_31_28_VALUE,
  91                                                        0x3);
  92                 } else
  93                         doorbell_range = REG_SET_FIELD(doorbell_range,
  94                                                        S2A_DOORBELL_ENTRY_2_CTRL,
  95                                                        S2A_DOORBELL_PORT2_RANGE_SIZE,
  96                                                        0);
  97
  98                 WREG32_SOC15(NBIO, 0, regS2A_DOORBELL_ENTRY_2_CTRL, doorbell_range);
  99         }
 100 }
 101
 102 static void nbio_v4_3_vcn_doorbell_range(struct amdgpu_device *adev, bool use_doorbell,
 103                                          int doorbell_index, int instance)
 104 {
 105         u32 doorbell_range;
 106
 107         if (instance)
 108                 doorbell_range = RREG32_SOC15(NBIO, 0, regS2A_DOORBELL_ENTRY_5_CTRL);
 109         else
 110                 doorbell_range = RREG32_SOC15(NBIO, 0, regS2A_DOORBELL_ENTRY_4_CTRL);
 111
 112         if (use_doorbell) {
 113                 doorbell_range = REG_SET_FIELD(doorbell_range,
 114                                                S2A_DOORBELL_ENTRY_4_CTRL,
 115                                                S2A_DOORBELL_PORT4_ENABLE,
 116                                                0x1);
 117                 doorbell_range = REG_SET_FIELD(doorbell_range,
 118                                                S2A_DOORBELL_ENTRY_4_CTRL,
 119                                                S2A_DOORBELL_PORT4_AWID,
 120                                                instance ? 0x7 : 0x4);
 121                 doorbell_range = REG_SET_FIELD(doorbell_range,
 122                                                S2A_DOORBELL_ENTRY_4_CTRL,
 123                                                S2A_DOORBELL_PORT4_RANGE_OFFSET,
 124                                                doorbell_index);
 125                 doorbell_range = REG_SET_FIELD(doorbell_range,
 126                                                S2A_DOORBELL_ENTRY_4_CTRL,
 127                                                S2A_DOORBELL_PORT4_RANGE_SIZE,
 128                                                8);
 129                 doorbell_range = REG_SET_FIELD(doorbell_range,
 130                                                S2A_DOORBELL_ENTRY_4_CTRL,
 131                                                S2A_DOORBELL_PORT4_AWADDR_31_28_VALUE,
 132                                                instance ? 0x7 : 0x4);
 133         } else
 134                 doorbell_range = REG_SET_FIELD(doorbell_range,
 135                                                S2A_DOORBELL_ENTRY_4_CTRL,
 136                                                S2A_DOORBELL_PORT4_RANGE_SIZE,
 137                                                0);
 138
 139         if (instance)
 140                 WREG32_SOC15(NBIO, 0, regS2A_DOORBELL_ENTRY_5_CTRL, doorbell_range);
 141         else
 142                 WREG32_SOC15(NBIO, 0, regS2A_DOORBELL_ENTRY_4_CTRL, doorbell_range);
 143 }
 144
 145 static void nbio_v4_3_gc_doorbell_init(struct amdgpu_device *adev)
 146 {
 147         WREG32_SOC15(NBIO, 0, regS2A_DOORBELL_ENTRY_0_CTRL, 0x30000007);
 148         WREG32_SOC15(NBIO, 0, regS2A_DOORBELL_ENTRY_3_CTRL, 0x3000000d);
 149 }
 150
 151 static void nbio_v4_3_enable_doorbell_aperture(struct amdgpu_device *adev,
 152                                                bool enable)
 153 {
 154         WREG32_FIELD15_PREREG(NBIO, 0, RCC_DEV0_EPF0_RCC_DOORBELL_APER_EN,
 155                         BIF_DOORBELL_APER_EN, enable ? 1 : 0);
 156 }
 157
 158 static void nbio_v4_3_enable_doorbell_selfring_aperture(struct amdgpu_device *adev,
 159                                                         bool enable)
 160 {
 161         u32 tmp = 0;
 162
 163         if (enable) {
 164                 tmp = REG_SET_FIELD(tmp, BIF_BX_PF0_DOORBELL_SELFRING_GPA_APER_CNTL,
 165                                     DOORBELL_SELFRING_GPA_APER_EN, 1) |
 166                       REG_SET_FIELD(tmp, BIF_BX_PF0_DOORBELL_SELFRING_GPA_APER_CNTL,
 167                                     DOORBELL_SELFRING_GPA_APER_MODE, 1) |
 168                       REG_SET_FIELD(tmp, BIF_BX_PF0_DOORBELL_SELFRING_GPA_APER_CNTL,
 169                                     DOORBELL_SELFRING_GPA_APER_SIZE, 0);
 170
 171                 WREG32_SOC15(NBIO, 0, regBIF_BX_PF0_DOORBELL_SELFRING_GPA_APER_BASE_LOW,
 172                              lower_32_bits(adev->doorbell.base));
 173                 WREG32_SOC15(NBIO, 0, regBIF_BX_PF0_DOORBELL_SELFRING_GPA_APER_BASE_HIGH,
 174                              upper_32_bits(adev->doorbell.base));
 175         }
 176
 177         WREG32_SOC15(NBIO, 0, regBIF_BX_PF0_DOORBELL_SELFRING_GPA_APER_CNTL,
 178                      tmp);
 179 }
 180
 181 static void nbio_v4_3_ih_doorbell_range(struct amdgpu_device *adev,
 182                                         bool use_doorbell, int doorbell_index)
 183 {
 184         u32 ih_doorbell_range = RREG32_SOC15(NBIO, 0, regS2A_DOORBELL_ENTRY_1_CTRL);
 185
 186         if (use_doorbell) {
 187                 ih_doorbell_range = REG_SET_FIELD(ih_doorbell_range,
 188                                                   S2A_DOORBELL_ENTRY_1_CTRL,
 189                                                   S2A_DOORBELL_PORT1_ENABLE,
 190                                                   0x1);
 191                 ih_doorbell_range = REG_SET_FIELD(ih_doorbell_range,
 192                                                   S2A_DOORBELL_ENTRY_1_CTRL,
 193                                                   S2A_DOORBELL_PORT1_AWID,
 194                                                   0x0);
 195                 ih_doorbell_range = REG_SET_FIELD(ih_doorbell_range,
 196                                                   S2A_DOORBELL_ENTRY_1_CTRL,
 197                                                   S2A_DOORBELL_PORT1_RANGE_OFFSET,
 198                                                   doorbell_index);
 199                 ih_doorbell_range = REG_SET_FIELD(ih_doorbell_range,
 200                                                   S2A_DOORBELL_ENTRY_1_CTRL,
 201                                                   S2A_DOORBELL_PORT1_RANGE_SIZE,
 202                                                   2);
 203                 ih_doorbell_range = REG_SET_FIELD(ih_doorbell_range,
 204                                                   S2A_DOORBELL_ENTRY_1_CTRL,
 205                                                   S2A_DOORBELL_PORT1_AWADDR_31_28_VALUE,
 206                                                   0x0);
 207         } else
 208                 ih_doorbell_range = REG_SET_FIELD(ih_doorbell_range,
 209                                                   S2A_DOORBELL_ENTRY_1_CTRL,
 210                                                   S2A_DOORBELL_PORT1_RANGE_SIZE,
 211                                                   0);
 212
 213         WREG32_SOC15(NBIO, 0, regS2A_DOORBELL_ENTRY_1_CTRL, ih_doorbell_range);
 214 }
 215
 216 static void nbio_v4_3_ih_control(struct amdgpu_device *adev)
 217 {
 218         u32 interrupt_cntl;
 219
 220         /* setup interrupt control */
 221         WREG32_SOC15(NBIO, 0, regBIF_BX0_INTERRUPT_CNTL2, adev->dummy_page_addr >> 8);
 222
 223         interrupt_cntl = RREG32_SOC15(NBIO, 0, regBIF_BX0_INTERRUPT_CNTL);
 224         /*
 225          * BIF_BX0_INTERRUPT_CNTL__IH_DUMMY_RD_OVERRIDE_MASK=0 - dummy read disabled with msi, enabled without msi
 226          * BIF_BX0_INTERRUPT_CNTL__IH_DUMMY_RD_OVERRIDE_MASK=1 - dummy read controlled by IH_DUMMY_RD_EN
 227          */
 228         interrupt_cntl = REG_SET_FIELD(interrupt_cntl, BIF_BX0_INTERRUPT_CNTL,
 229                                        IH_DUMMY_RD_OVERRIDE, 0);
 230
 231         /* BIF_BX0_INTERRUPT_CNTL__IH_REQ_NONSNOOP_EN_MASK=1 if ring is in non-cacheable memory, e.g., vram */
 232         interrupt_cntl = REG_SET_FIELD(interrupt_cntl, BIF_BX0_INTERRUPT_CNTL,
 233                                        IH_REQ_NONSNOOP_EN, 0);
 234
 235         WREG32_SOC15(NBIO, 0, regBIF_BX0_INTERRUPT_CNTL, interrupt_cntl);
 236 }
 237
 238 static void nbio_v4_3_update_medium_grain_clock_gating(struct amdgpu_device *adev,
 239                                                        bool enable)
 240 {
 241         uint32_t def, data;
 242
 243         def = data = RREG32_SOC15(NBIO, 0, regCPM_CONTROL);
 244         if (enable && (adev->cg_flags & AMD_CG_SUPPORT_BIF_MGCG)) {
 245                 data |= (CPM_CONTROL__LCLK_DYN_GATE_ENABLE_MASK |
 246                          CPM_CONTROL__TXCLK_DYN_GATE_ENABLE_MASK |
 247                          CPM_CONTROL__TXCLK_LCNT_GATE_ENABLE_MASK |
 248                          CPM_CONTROL__TXCLK_REGS_GATE_ENABLE_MASK |
 249                          CPM_CONTROL__TXCLK_PRBS_GATE_ENABLE_MASK |
 250                          CPM_CONTROL__REFCLK_REGS_GATE_ENABLE_MASK);
 251         } else {
 252                 data &= ~(CPM_CONTROL__LCLK_DYN_GATE_ENABLE_MASK |
 253                           CPM_CONTROL__TXCLK_DYN_GATE_ENABLE_MASK |
 254                           CPM_CONTROL__TXCLK_LCNT_GATE_ENABLE_MASK |
 255                           CPM_CONTROL__TXCLK_REGS_GATE_ENABLE_MASK |
 256                           CPM_CONTROL__TXCLK_PRBS_GATE_ENABLE_MASK |
 257                           CPM_CONTROL__REFCLK_REGS_GATE_ENABLE_MASK);
 258         }
 259
 260         if (def != data)
 261                 WREG32_SOC15(NBIO, 0, regCPM_CONTROL, data);
 262 }
 263
 264 static void nbio_v4_3_update_medium_grain_light_sleep(struct amdgpu_device *adev,
 265                                                       bool enable)
 266 {
 267         uint32_t def, data;
 268
 269         /* TODO: need update in future */
 270         def = data = RREG32_SOC15(NBIO, 0, regPCIE_CNTL2);
 271         if (enable && (adev->cg_flags & AMD_CG_SUPPORT_BIF_LS)) {
 272                 data |= PCIE_CNTL2__SLV_MEM_LS_EN_MASK;
 273         } else {
 274                 data &= ~PCIE_CNTL2__SLV_MEM_LS_EN_MASK;
 275         }
 276
 277         if (def != data)
 278                 WREG32_SOC15(NBIO, 0, regPCIE_CNTL2, data);
 279 }
 280
 281 static void nbio_v4_3_get_clockgating_state(struct amdgpu_device *adev,
 282                                             u64 *flags)
 283 {
 284         int data;
 285
 286         /* AMD_CG_SUPPORT_BIF_MGCG */
 287         data = RREG32_SOC15(NBIO, 0, regCPM_CONTROL);
 288         if (data & CPM_CONTROL__LCLK_DYN_GATE_ENABLE_MASK)
 289                 *flags |= AMD_CG_SUPPORT_BIF_MGCG;
 290
 291         /* AMD_CG_SUPPORT_BIF_LS */
 292         data = RREG32_SOC15(NBIO, 0, regPCIE_CNTL2);
 293         if (data & PCIE_CNTL2__SLV_MEM_LS_EN_MASK)
 294                 *flags |= AMD_CG_SUPPORT_BIF_LS;
 295 }
 296
 297 static u32 nbio_v4_3_get_hdp_flush_req_offset(struct amdgpu_device *adev)
 298 {
 299         return SOC15_REG_OFFSET(NBIO, 0, regBIF_BX_PF0_GPU_HDP_FLUSH_REQ);
 300 }
 301
 302 static u32 nbio_v4_3_get_hdp_flush_done_offset(struct amdgpu_device *adev)
 303 {
 304         return SOC15_REG_OFFSET(NBIO, 0, regBIF_BX_PF0_GPU_HDP_FLUSH_DONE);
 305 }
 306
 307 static u32 nbio_v4_3_get_pcie_index_offset(struct amdgpu_device *adev)
 308 {
 309         return SOC15_REG_OFFSET(NBIO, 0, regBIF_BX_PF0_RSMU_INDEX);
 310 }
 311
 312 static u32 nbio_v4_3_get_pcie_data_offset(struct amdgpu_device *adev)
 313 {
 314         return SOC15_REG_OFFSET(NBIO, 0, regBIF_BX_PF0_RSMU_DATA);
 315 }
 316
 317 const struct nbio_hdp_flush_reg nbio_v4_3_hdp_flush_reg = {
 318         .ref_and_mask_cp0 = BIF_BX_PF_GPU_HDP_FLUSH_DONE__CP0_MASK,
 319         .ref_and_mask_cp1 = BIF_BX_PF_GPU_HDP_FLUSH_DONE__CP1_MASK,
 320         .ref_and_mask_cp2 = BIF_BX_PF_GPU_HDP_FLUSH_DONE__CP2_MASK,
 321         .ref_and_mask_cp3 = BIF_BX_PF_GPU_HDP_FLUSH_DONE__CP3_MASK,
 322         .ref_and_mask_cp4 = BIF_BX_PF_GPU_HDP_FLUSH_DONE__CP4_MASK,
 323         .ref_and_mask_cp5 = BIF_BX_PF_GPU_HDP_FLUSH_DONE__CP5_MASK,
 324         .ref_and_mask_cp6 = BIF_BX_PF_GPU_HDP_FLUSH_DONE__CP6_MASK,
 325         .ref_and_mask_cp7 = BIF_BX_PF_GPU_HDP_FLUSH_DONE__CP7_MASK,
 326         .ref_and_mask_cp8 = BIF_BX_PF_GPU_HDP_FLUSH_DONE__CP8_MASK,
 327         .ref_and_mask_cp9 = BIF_BX_PF_GPU_HDP_FLUSH_DONE__CP9_MASK,
 328         .ref_and_mask_sdma0 = BIF_BX_PF_GPU_HDP_FLUSH_DONE__SDMA0_MASK,
 329         .ref_and_mask_sdma1 = BIF_BX_PF_GPU_HDP_FLUSH_DONE__SDMA1_MASK,
 330 };
 331
 332 static void nbio_v4_3_init_registers(struct amdgpu_device *adev)
 333 {
 334         return;
 335 }
 336
 337 static u32 nbio_v4_3_get_rom_offset(struct amdgpu_device *adev)
 338 {
 339         u32 data, rom_offset;
 340
 341         data = RREG32_SOC15(NBIO, 0, regREGS_ROM_OFFSET_CTRL);
 342         rom_offset = REG_GET_FIELD(data, REGS_ROM_OFFSET_CTRL, ROM_OFFSET);
 343
 344         return rom_offset;
 345 }
 346
 347 const struct amdgpu_nbio_funcs nbio_v4_3_funcs = {
 348         .get_hdp_flush_req_offset = nbio_v4_3_get_hdp_flush_req_offset,
 349         .get_hdp_flush_done_offset = nbio_v4_3_get_hdp_flush_done_offset,
 350         .get_pcie_index_offset = nbio_v4_3_get_pcie_index_offset,
 351         .get_pcie_data_offset = nbio_v4_3_get_pcie_data_offset,
 352         .get_rev_id = nbio_v4_3_get_rev_id,
 353         .mc_access_enable = nbio_v4_3_mc_access_enable,
 354         .get_memsize = nbio_v4_3_get_memsize,
 355         .sdma_doorbell_range = nbio_v4_3_sdma_doorbell_range,
 356         .vcn_doorbell_range = nbio_v4_3_vcn_doorbell_range,
 357         .gc_doorbell_init = nbio_v4_3_gc_doorbell_init,
 358         .enable_doorbell_aperture = nbio_v4_3_enable_doorbell_aperture,
 359         .enable_doorbell_selfring_aperture = nbio_v4_3_enable_doorbell_selfring_aperture,
 360         .ih_doorbell_range = nbio_v4_3_ih_doorbell_range,
 361         .update_medium_grain_clock_gating = nbio_v4_3_update_medium_grain_clock_gating,
 362         .update_medium_grain_light_sleep = nbio_v4_3_update_medium_grain_light_sleep,
 363         .get_clockgating_state = nbio_v4_3_get_clockgating_state,
 364         .ih_control = nbio_v4_3_ih_control,
 365         .init_registers = nbio_v4_3_init_registers,
 366         .remap_hdp_registers = nbio_v4_3_remap_hdp_registers,
 367         .get_rom_offset = nbio_v4_3_get_rom_offset,
 368 };