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 "ivsrcid/nbio/irqsrcs_nbif_7_4.h"
  30 #include <uapi/linux/kfd_ioctl.h>
  31
  32 static void nbio_v4_3_remap_hdp_registers(struct amdgpu_device *adev)
  33 {
  34         WREG32_SOC15(NBIO, 0, regBIF_BX0_REMAP_HDP_MEM_FLUSH_CNTL,
  35                 adev->rmmio_remap.reg_offset + KFD_MMIO_REMAP_HDP_MEM_FLUSH_CNTL);
  36         WREG32_SOC15(NBIO, 0, regBIF_BX0_REMAP_HDP_REG_FLUSH_CNTL,
  37                 adev->rmmio_remap.reg_offset + KFD_MMIO_REMAP_HDP_REG_FLUSH_CNTL);
  38 }
  39
  40 static u32 nbio_v4_3_get_rev_id(struct amdgpu_device *adev)
  41 {
  42         u32 tmp = RREG32_SOC15(NBIO, 0, regRCC_STRAP0_RCC_DEV0_EPF0_STRAP0);
  43
  44         tmp &= RCC_STRAP0_RCC_DEV0_EPF0_STRAP0__STRAP_ATI_REV_ID_DEV0_F0_MASK;
  45         tmp >>= RCC_STRAP0_RCC_DEV0_EPF0_STRAP0__STRAP_ATI_REV_ID_DEV0_F0__SHIFT;
  46
  47         return tmp;
  48 }
  49
  50 static void nbio_v4_3_mc_access_enable(struct amdgpu_device *adev, bool enable)
  51 {
  52         if (enable)
  53                 WREG32_SOC15(NBIO, 0, regBIF_BX0_BIF_FB_EN,
  54                              BIF_BX0_BIF_FB_EN__FB_READ_EN_MASK |
  55                              BIF_BX0_BIF_FB_EN__FB_WRITE_EN_MASK);
  56         else
  57                 WREG32_SOC15(NBIO, 0, regBIF_BX0_BIF_FB_EN, 0);
  58 }
  59
  60 static u32 nbio_v4_3_get_memsize(struct amdgpu_device *adev)
  61 {
  62         return RREG32_SOC15(NBIO, 0, regRCC_DEV0_EPF0_RCC_CONFIG_MEMSIZE);
  63 }
  64
  65 static void nbio_v4_3_sdma_doorbell_range(struct amdgpu_device *adev, int instance,
  66                                           bool use_doorbell, int doorbell_index,
  67                                           int doorbell_size)
  68 {
  69         if (instance == 0) {
  70                 u32 doorbell_range = RREG32_SOC15(NBIO, 0, regS2A_DOORBELL_ENTRY_2_CTRL);
  71
  72                 if (use_doorbell) {
  73                         doorbell_range = REG_SET_FIELD(doorbell_range,
  74                                                        S2A_DOORBELL_ENTRY_2_CTRL,
  75                                                        S2A_DOORBELL_PORT2_ENABLE,
  76                                                        0x1);
  77                         doorbell_range = REG_SET_FIELD(doorbell_range,
  78                                                        S2A_DOORBELL_ENTRY_2_CTRL,
  79                                                        S2A_DOORBELL_PORT2_AWID,
  80                                                        0xe);
  81                         doorbell_range = REG_SET_FIELD(doorbell_range,
  82                                                        S2A_DOORBELL_ENTRY_2_CTRL,
  83                                                        S2A_DOORBELL_PORT2_RANGE_OFFSET,
  84                                                        doorbell_index);
  85                         doorbell_range = REG_SET_FIELD(doorbell_range,
  86                                                        S2A_DOORBELL_ENTRY_2_CTRL,
  87                                                        S2A_DOORBELL_PORT2_RANGE_SIZE,
  88                                                        doorbell_size);
  89                         doorbell_range = REG_SET_FIELD(doorbell_range,
  90                                                        S2A_DOORBELL_ENTRY_2_CTRL,
  91                                                        S2A_DOORBELL_PORT2_AWADDR_31_28_VALUE,
  92                                                        0x3);
  93                 } else
  94                         doorbell_range = REG_SET_FIELD(doorbell_range,
  95                                                        S2A_DOORBELL_ENTRY_2_CTRL,
  96                                                        S2A_DOORBELL_PORT2_RANGE_SIZE,
  97                                                        0);
  98
  99                 WREG32_SOC15(NBIO, 0, regS2A_DOORBELL_ENTRY_2_CTRL, doorbell_range);
 100         }
 101 }
 102
 103 static void nbio_v4_3_vcn_doorbell_range(struct amdgpu_device *adev, bool use_doorbell,
 104                                          int doorbell_index, int instance)
 105 {
 106         u32 doorbell_range;
 107
 108         if (instance)
 109                 doorbell_range = RREG32_SOC15(NBIO, 0, regS2A_DOORBELL_ENTRY_5_CTRL);
 110         else
 111                 doorbell_range = RREG32_SOC15(NBIO, 0, regS2A_DOORBELL_ENTRY_4_CTRL);
 112
 113         if (use_doorbell) {
 114                 doorbell_range = REG_SET_FIELD(doorbell_range,
 115                                                S2A_DOORBELL_ENTRY_4_CTRL,
 116                                                S2A_DOORBELL_PORT4_ENABLE,
 117                                                0x1);
 118                 doorbell_range = REG_SET_FIELD(doorbell_range,
 119                                                S2A_DOORBELL_ENTRY_4_CTRL,
 120                                                S2A_DOORBELL_PORT4_AWID,
 121                                                instance ? 0x7 : 0x4);
 122                 doorbell_range = REG_SET_FIELD(doorbell_range,
 123                                                S2A_DOORBELL_ENTRY_4_CTRL,
 124                                                S2A_DOORBELL_PORT4_RANGE_OFFSET,
 125                                                doorbell_index);
 126                 doorbell_range = REG_SET_FIELD(doorbell_range,
 127                                                S2A_DOORBELL_ENTRY_4_CTRL,
 128                                                S2A_DOORBELL_PORT4_RANGE_SIZE,
 129                                                8);
 130                 doorbell_range = REG_SET_FIELD(doorbell_range,
 131                                                S2A_DOORBELL_ENTRY_4_CTRL,
 132                                                S2A_DOORBELL_PORT4_AWADDR_31_28_VALUE,
 133                                                instance ? 0x7 : 0x4);
 134         } else
 135                 doorbell_range = REG_SET_FIELD(doorbell_range,
 136                                                S2A_DOORBELL_ENTRY_4_CTRL,
 137                                                S2A_DOORBELL_PORT4_RANGE_SIZE,
 138                                                0);
 139
 140         if (instance)
 141                 WREG32_SOC15(NBIO, 0, regS2A_DOORBELL_ENTRY_5_CTRL, doorbell_range);
 142         else
 143                 WREG32_SOC15(NBIO, 0, regS2A_DOORBELL_ENTRY_4_CTRL, doorbell_range);
 144 }
 145
 146 static void nbio_v4_3_gc_doorbell_init(struct amdgpu_device *adev)
 147 {
 148         WREG32_SOC15(NBIO, 0, regS2A_DOORBELL_ENTRY_0_CTRL, 0x30000007);
 149         WREG32_SOC15(NBIO, 0, regS2A_DOORBELL_ENTRY_3_CTRL, 0x3000000d);
 150 }
 151
 152 static void nbio_v4_3_enable_doorbell_aperture(struct amdgpu_device *adev,
 153                                                bool enable)
 154 {
 155         WREG32_FIELD15_PREREG(NBIO, 0, RCC_DEV0_EPF0_RCC_DOORBELL_APER_EN,
 156                         BIF_DOORBELL_APER_EN, enable ? 1 : 0);
 157 }
 158
 159 static void nbio_v4_3_enable_doorbell_selfring_aperture(struct amdgpu_device *adev,
 160                                                         bool enable)
 161 {
 162         u32 tmp = 0;
 163
 164         if (enable) {
 165                 tmp = REG_SET_FIELD(tmp, BIF_BX_PF0_DOORBELL_SELFRING_GPA_APER_CNTL,
 166                                     DOORBELL_SELFRING_GPA_APER_EN, 1) |
 167                       REG_SET_FIELD(tmp, BIF_BX_PF0_DOORBELL_SELFRING_GPA_APER_CNTL,
 168                                     DOORBELL_SELFRING_GPA_APER_MODE, 1) |
 169                       REG_SET_FIELD(tmp, BIF_BX_PF0_DOORBELL_SELFRING_GPA_APER_CNTL,
 170                                     DOORBELL_SELFRING_GPA_APER_SIZE, 0);
 171
 172                 WREG32_SOC15(NBIO, 0, regBIF_BX_PF0_DOORBELL_SELFRING_GPA_APER_BASE_LOW,
 173                              lower_32_bits(adev->doorbell.base));
 174                 WREG32_SOC15(NBIO, 0, regBIF_BX_PF0_DOORBELL_SELFRING_GPA_APER_BASE_HIGH,
 175                              upper_32_bits(adev->doorbell.base));
 176         }
 177
 178         WREG32_SOC15(NBIO, 0, regBIF_BX_PF0_DOORBELL_SELFRING_GPA_APER_CNTL,
 179                      tmp);
 180 }
 181
 182 static void nbio_v4_3_ih_doorbell_range(struct amdgpu_device *adev,
 183                                         bool use_doorbell, int doorbell_index)
 184 {
 185         u32 ih_doorbell_range = RREG32_SOC15(NBIO, 0, regS2A_DOORBELL_ENTRY_1_CTRL);
 186
 187         if (use_doorbell) {
 188                 ih_doorbell_range = REG_SET_FIELD(ih_doorbell_range,
 189                                                   S2A_DOORBELL_ENTRY_1_CTRL,
 190                                                   S2A_DOORBELL_PORT1_ENABLE,
 191                                                   0x1);
 192                 ih_doorbell_range = REG_SET_FIELD(ih_doorbell_range,
 193                                                   S2A_DOORBELL_ENTRY_1_CTRL,
 194                                                   S2A_DOORBELL_PORT1_AWID,
 195                                                   0x0);
 196                 ih_doorbell_range = REG_SET_FIELD(ih_doorbell_range,
 197                                                   S2A_DOORBELL_ENTRY_1_CTRL,
 198                                                   S2A_DOORBELL_PORT1_RANGE_OFFSET,
 199                                                   doorbell_index);
 200                 ih_doorbell_range = REG_SET_FIELD(ih_doorbell_range,
 201                                                   S2A_DOORBELL_ENTRY_1_CTRL,
 202                                                   S2A_DOORBELL_PORT1_RANGE_SIZE,
 203                                                   2);
 204                 ih_doorbell_range = REG_SET_FIELD(ih_doorbell_range,
 205                                                   S2A_DOORBELL_ENTRY_1_CTRL,
 206                                                   S2A_DOORBELL_PORT1_AWADDR_31_28_VALUE,
 207                                                   0x0);
 208         } else
 209                 ih_doorbell_range = REG_SET_FIELD(ih_doorbell_range,
 210                                                   S2A_DOORBELL_ENTRY_1_CTRL,
 211                                                   S2A_DOORBELL_PORT1_RANGE_SIZE,
 212                                                   0);
 213
 214         WREG32_SOC15(NBIO, 0, regS2A_DOORBELL_ENTRY_1_CTRL, ih_doorbell_range);
 215 }
 216
 217 static void nbio_v4_3_ih_control(struct amdgpu_device *adev)
 218 {
 219         u32 interrupt_cntl;
 220
 221         /* setup interrupt control */
 222         WREG32_SOC15(NBIO, 0, regBIF_BX0_INTERRUPT_CNTL2, adev->dummy_page_addr >> 8);
 223
 224         interrupt_cntl = RREG32_SOC15(NBIO, 0, regBIF_BX0_INTERRUPT_CNTL);
 225         /*
 226          * BIF_BX0_INTERRUPT_CNTL__IH_DUMMY_RD_OVERRIDE_MASK=0 - dummy read disabled with msi, enabled without msi
 227          * BIF_BX0_INTERRUPT_CNTL__IH_DUMMY_RD_OVERRIDE_MASK=1 - dummy read controlled by IH_DUMMY_RD_EN
 228          */
 229         interrupt_cntl = REG_SET_FIELD(interrupt_cntl, BIF_BX0_INTERRUPT_CNTL,
 230                                        IH_DUMMY_RD_OVERRIDE, 0);
 231
 232         /* BIF_BX0_INTERRUPT_CNTL__IH_REQ_NONSNOOP_EN_MASK=1 if ring is in non-cacheable memory, e.g., vram */
 233         interrupt_cntl = REG_SET_FIELD(interrupt_cntl, BIF_BX0_INTERRUPT_CNTL,
 234                                        IH_REQ_NONSNOOP_EN, 0);
 235
 236         WREG32_SOC15(NBIO, 0, regBIF_BX0_INTERRUPT_CNTL, interrupt_cntl);
 237 }
 238
 239 static void nbio_v4_3_update_medium_grain_clock_gating(struct amdgpu_device *adev,
 240                                                        bool enable)
 241 {
 242         uint32_t def, data;
 243
 244         if (enable && !(adev->cg_flags & AMD_CG_SUPPORT_BIF_MGCG))
 245                 return;
 246
 247         def = data = RREG32_SOC15(NBIO, 0, regCPM_CONTROL);
 248         if (enable) {
 249                 data |= (CPM_CONTROL__LCLK_DYN_GATE_ENABLE_MASK |
 250                          CPM_CONTROL__TXCLK_DYN_GATE_ENABLE_MASK |
 251                          CPM_CONTROL__TXCLK_LCNT_GATE_ENABLE_MASK |
 252                          CPM_CONTROL__TXCLK_REGS_GATE_ENABLE_MASK |
 253                          CPM_CONTROL__TXCLK_PRBS_GATE_ENABLE_MASK |
 254                          CPM_CONTROL__REFCLK_REGS_GATE_ENABLE_MASK);
 255         } else {
 256                 data &= ~(CPM_CONTROL__LCLK_DYN_GATE_ENABLE_MASK |
 257                           CPM_CONTROL__TXCLK_DYN_GATE_ENABLE_MASK |
 258                           CPM_CONTROL__TXCLK_LCNT_GATE_ENABLE_MASK |
 259                           CPM_CONTROL__TXCLK_REGS_GATE_ENABLE_MASK |
 260                           CPM_CONTROL__TXCLK_PRBS_GATE_ENABLE_MASK |
 261                           CPM_CONTROL__REFCLK_REGS_GATE_ENABLE_MASK);
 262         }
 263
 264         if (def != data)
 265                 WREG32_SOC15(NBIO, 0, regCPM_CONTROL, data);
 266 }
 267
 268 static void nbio_v4_3_update_medium_grain_light_sleep(struct amdgpu_device *adev,
 269                                                       bool enable)
 270 {
 271         uint32_t def, data;
 272
 273         if (enable && !(adev->cg_flags & AMD_CG_SUPPORT_BIF_LS))
 274                 return;
 275
 276         /* TODO: need update in future */
 277         def = data = RREG32_SOC15(NBIO, 0, regPCIE_CNTL2);
 278         if (enable) {
 279                 data |= PCIE_CNTL2__SLV_MEM_LS_EN_MASK;
 280         } else {
 281                 data &= ~PCIE_CNTL2__SLV_MEM_LS_EN_MASK;
 282         }
 283
 284         if (def != data)
 285                 WREG32_SOC15(NBIO, 0, regPCIE_CNTL2, data);
 286 }
 287
 288 static void nbio_v4_3_get_clockgating_state(struct amdgpu_device *adev,
 289                                             u64 *flags)
 290 {
 291         int data;
 292
 293         /* AMD_CG_SUPPORT_BIF_MGCG */
 294         data = RREG32_SOC15(NBIO, 0, regCPM_CONTROL);
 295         if (data & CPM_CONTROL__LCLK_DYN_GATE_ENABLE_MASK)
 296                 *flags |= AMD_CG_SUPPORT_BIF_MGCG;
 297
 298         /* AMD_CG_SUPPORT_BIF_LS */
 299         data = RREG32_SOC15(NBIO, 0, regPCIE_CNTL2);
 300         if (data & PCIE_CNTL2__SLV_MEM_LS_EN_MASK)
 301                 *flags |= AMD_CG_SUPPORT_BIF_LS;
 302 }
 303
 304 static u32 nbio_v4_3_get_hdp_flush_req_offset(struct amdgpu_device *adev)
 305 {
 306         return SOC15_REG_OFFSET(NBIO, 0, regBIF_BX_PF0_GPU_HDP_FLUSH_REQ);
 307 }
 308
 309 static u32 nbio_v4_3_get_hdp_flush_done_offset(struct amdgpu_device *adev)
 310 {
 311         return SOC15_REG_OFFSET(NBIO, 0, regBIF_BX_PF0_GPU_HDP_FLUSH_DONE);
 312 }
 313
 314 static u32 nbio_v4_3_get_pcie_index_offset(struct amdgpu_device *adev)
 315 {
 316         return SOC15_REG_OFFSET(NBIO, 0, regBIF_BX_PF0_RSMU_INDEX);
 317 }
 318
 319 static u32 nbio_v4_3_get_pcie_data_offset(struct amdgpu_device *adev)
 320 {
 321         return SOC15_REG_OFFSET(NBIO, 0, regBIF_BX_PF0_RSMU_DATA);
 322 }
 323
 324 const struct nbio_hdp_flush_reg nbio_v4_3_hdp_flush_reg = {
 325         .ref_and_mask_cp0 = BIF_BX_PF_GPU_HDP_FLUSH_DONE__CP0_MASK,
 326         .ref_and_mask_cp1 = BIF_BX_PF_GPU_HDP_FLUSH_DONE__CP1_MASK,
 327         .ref_and_mask_cp2 = BIF_BX_PF_GPU_HDP_FLUSH_DONE__CP2_MASK,
 328         .ref_and_mask_cp3 = BIF_BX_PF_GPU_HDP_FLUSH_DONE__CP3_MASK,
 329         .ref_and_mask_cp4 = BIF_BX_PF_GPU_HDP_FLUSH_DONE__CP4_MASK,
 330         .ref_and_mask_cp5 = BIF_BX_PF_GPU_HDP_FLUSH_DONE__CP5_MASK,
 331         .ref_and_mask_cp6 = BIF_BX_PF_GPU_HDP_FLUSH_DONE__CP6_MASK,
 332         .ref_and_mask_cp7 = BIF_BX_PF_GPU_HDP_FLUSH_DONE__CP7_MASK,
 333         .ref_and_mask_cp8 = BIF_BX_PF_GPU_HDP_FLUSH_DONE__CP8_MASK,
 334         .ref_and_mask_cp9 = BIF_BX_PF_GPU_HDP_FLUSH_DONE__CP9_MASK,
 335         .ref_and_mask_sdma0 = BIF_BX_PF_GPU_HDP_FLUSH_DONE__SDMA0_MASK,
 336         .ref_and_mask_sdma1 = BIF_BX_PF_GPU_HDP_FLUSH_DONE__SDMA1_MASK,
 337 };
 338
 339 static void nbio_v4_3_init_registers(struct amdgpu_device *adev)
 340 {
 341         if (amdgpu_ip_version(adev, NBIO_HWIP, 0) == IP_VERSION(4, 3, 0)) {
 342                 uint32_t data;
 343
 344                 data = RREG32_SOC15(NBIO, 0, regRCC_DEV0_EPF2_STRAP2);
 345                 data &= ~RCC_DEV0_EPF2_STRAP2__STRAP_NO_SOFT_RESET_DEV0_F2_MASK;
 346                 WREG32_SOC15(NBIO, 0, regRCC_DEV0_EPF2_STRAP2, data);
 347         }
 348 }
 349
 350 static u32 nbio_v4_3_get_rom_offset(struct amdgpu_device *adev)
 351 {
 352         u32 data, rom_offset;
 353
 354         data = RREG32_SOC15(NBIO, 0, regREGS_ROM_OFFSET_CTRL);
 355         rom_offset = REG_GET_FIELD(data, REGS_ROM_OFFSET_CTRL, ROM_OFFSET);
 356
 357         return rom_offset;
 358 }
 359
 360 #ifdef CONFIG_PCIEASPM
 361 static void nbio_v4_3_program_ltr(struct amdgpu_device *adev)
 362 {
 363         uint32_t def, data;
 364
 365         def = RREG32_SOC15(NBIO, 0, regRCC_EP_DEV0_0_EP_PCIE_TX_LTR_CNTL);
 366         data = 0x35EB;
 367         data &= ~EP_PCIE_TX_LTR_CNTL__LTR_PRIV_MSG_DIS_IN_PM_NON_D0_MASK;
 368         data &= ~EP_PCIE_TX_LTR_CNTL__LTR_PRIV_RST_LTR_IN_DL_DOWN_MASK;
 369         if (def != data)
 370                 WREG32_SOC15(NBIO, 0, regRCC_EP_DEV0_0_EP_PCIE_TX_LTR_CNTL, data);
 371
 372         def = data = RREG32_SOC15(NBIO, 0, regRCC_STRAP0_RCC_BIF_STRAP2);
 373         data &= ~RCC_BIF_STRAP2__STRAP_LTR_IN_ASPML1_DIS_MASK;
 374         if (def != data)
 375                 WREG32_SOC15(NBIO, 0, regRCC_STRAP0_RCC_BIF_STRAP2, data);
 376
 377         def = data = RREG32_SOC15(NBIO, 0, regBIF_CFG_DEV0_EPF0_DEVICE_CNTL2);
 378         if (adev->pdev->ltr_path)
 379                 data |= BIF_CFG_DEV0_EPF0_DEVICE_CNTL2__LTR_EN_MASK;
 380         else
 381                 data &= ~BIF_CFG_DEV0_EPF0_DEVICE_CNTL2__LTR_EN_MASK;
 382         if (def != data)
 383                 WREG32_SOC15(NBIO, 0, regBIF_CFG_DEV0_EPF0_DEVICE_CNTL2, data);
 384 }
 385 #endif
 386
 387 static void nbio_v4_3_program_aspm(struct amdgpu_device *adev)
 388 {
 389 #ifdef CONFIG_PCIEASPM
 390         uint32_t def, data;
 391
 392         if (!(amdgpu_ip_version(adev, PCIE_HWIP, 0) == IP_VERSION(7, 4, 0)) &&
 393             !(amdgpu_ip_version(adev, PCIE_HWIP, 0) == IP_VERSION(7, 6, 0)))
 394                 return;
 395
 396         def = data = RREG32_SOC15(NBIO, 0, regPCIE_LC_CNTL);
 397         data &= ~PCIE_LC_CNTL__LC_L1_INACTIVITY_MASK;
 398         data &= ~PCIE_LC_CNTL__LC_L0S_INACTIVITY_MASK;
 399         data |= PCIE_LC_CNTL__LC_PMI_TO_L1_DIS_MASK;
 400         if (def != data)
 401                 WREG32_SOC15(NBIO, 0, regPCIE_LC_CNTL, data);
 402
 403         def = data = RREG32_SOC15(NBIO, 0, regPCIE_LC_CNTL7);
 404         data |= PCIE_LC_CNTL7__LC_NBIF_ASPM_INPUT_EN_MASK;
 405         if (def != data)
 406                 WREG32_SOC15(NBIO, 0, regPCIE_LC_CNTL7, data);
 407
 408         def = data = RREG32_SOC15(NBIO, 0, regPCIE_LC_CNTL3);
 409         data |= PCIE_LC_CNTL3__LC_DSC_DONT_ENTER_L23_AFTER_PME_ACK_MASK;
 410         if (def != data)
 411                 WREG32_SOC15(NBIO, 0, regPCIE_LC_CNTL3, data);
 412
 413         def = data = RREG32_SOC15(NBIO, 0, regRCC_STRAP0_RCC_BIF_STRAP3);
 414         data &= ~RCC_BIF_STRAP3__STRAP_VLINK_ASPM_IDLE_TIMER_MASK;
 415         data &= ~RCC_BIF_STRAP3__STRAP_VLINK_PM_L1_ENTRY_TIMER_MASK;
 416         if (def != data)
 417                 WREG32_SOC15(NBIO, 0, regRCC_STRAP0_RCC_BIF_STRAP3, data);
 418
 419         def = data = RREG32_SOC15(NBIO, 0, regRCC_STRAP0_RCC_BIF_STRAP5);
 420         data &= ~RCC_BIF_STRAP5__STRAP_VLINK_LDN_ENTRY_TIMER_MASK;
 421         if (def != data)
 422                 WREG32_SOC15(NBIO, 0, regRCC_STRAP0_RCC_BIF_STRAP5, data);
 423
 424         def = data = RREG32_SOC15(NBIO, 0, regBIF_CFG_DEV0_EPF0_DEVICE_CNTL2);
 425         data &= ~BIF_CFG_DEV0_EPF0_DEVICE_CNTL2__LTR_EN_MASK;
 426         if (def != data)
 427                 WREG32_SOC15(NBIO, 0, regBIF_CFG_DEV0_EPF0_DEVICE_CNTL2, data);
 428
 429         WREG32_SOC15(NBIO, 0, regBIF_CFG_DEV0_EPF0_PCIE_LTR_CAP, 0x10011001);
 430
 431         def = data = RREG32_SOC15(NBIO, 0, regPSWUSP0_PCIE_LC_CNTL2);
 432         data |= PSWUSP0_PCIE_LC_CNTL2__LC_ALLOW_PDWN_IN_L1_MASK |
 433                 PSWUSP0_PCIE_LC_CNTL2__LC_ALLOW_PDWN_IN_L23_MASK;
 434         data &= ~PSWUSP0_PCIE_LC_CNTL2__LC_RCV_L0_TO_RCV_L0S_DIS_MASK;
 435         if (def != data)
 436                 WREG32_SOC15(NBIO, 0, regPSWUSP0_PCIE_LC_CNTL2, data);
 437
 438         def = data = RREG32_SOC15(NBIO, 0, regPCIE_LC_CNTL4);
 439         data |= PCIE_LC_CNTL4__LC_L1_POWERDOWN_MASK;
 440         if (def != data)
 441                 WREG32_SOC15(NBIO, 0, regPCIE_LC_CNTL4, data);
 442
 443         def = data = RREG32_SOC15(NBIO, 0, regPCIE_LC_RXRECOVER_RXSTANDBY_CNTL);
 444         data |= PCIE_LC_RXRECOVER_RXSTANDBY_CNTL__LC_RX_L0S_STANDBY_EN_MASK;
 445         if (def != data)
 446                 WREG32_SOC15(NBIO, 0, regPCIE_LC_RXRECOVER_RXSTANDBY_CNTL, data);
 447
 448         nbio_v4_3_program_ltr(adev);
 449
 450         def = data = RREG32_SOC15(NBIO, 0, regRCC_STRAP0_RCC_BIF_STRAP3);
 451         data |= 0x5DE0 << RCC_BIF_STRAP3__STRAP_VLINK_ASPM_IDLE_TIMER__SHIFT;
 452         data |= 0x0010 << RCC_BIF_STRAP3__STRAP_VLINK_PM_L1_ENTRY_TIMER__SHIFT;
 453         if (def != data)
 454                 WREG32_SOC15(NBIO, 0, regRCC_STRAP0_RCC_BIF_STRAP3, data);
 455
 456         def = data = RREG32_SOC15(NBIO, 0, regRCC_STRAP0_RCC_BIF_STRAP5);
 457         data |= 0x0010 << RCC_BIF_STRAP5__STRAP_VLINK_LDN_ENTRY_TIMER__SHIFT;
 458         if (def != data)
 459                 WREG32_SOC15(NBIO, 0, regRCC_STRAP0_RCC_BIF_STRAP5, data);
 460
 461         def = data = RREG32_SOC15(NBIO, 0, regPCIE_LC_CNTL);
 462         data |= 0x0 << PCIE_LC_CNTL__LC_L0S_INACTIVITY__SHIFT;
 463         data |= 0x9 << PCIE_LC_CNTL__LC_L1_INACTIVITY__SHIFT;
 464         data &= ~PCIE_LC_CNTL__LC_PMI_TO_L1_DIS_MASK;
 465         if (def != data)
 466                 WREG32_SOC15(NBIO, 0, regPCIE_LC_CNTL, data);
 467
 468         def = data = RREG32_SOC15(NBIO, 0, regPCIE_LC_CNTL3);
 469         data &= ~PCIE_LC_CNTL3__LC_DSC_DONT_ENTER_L23_AFTER_PME_ACK_MASK;
 470         if (def != data)
 471                 WREG32_SOC15(NBIO, 0, regPCIE_LC_CNTL3, data);
 472 #endif
 473 }
 474
 475 #define MMIO_REG_HOLE_OFFSET (0x80000 - PAGE_SIZE)
 476
 477 static void nbio_v4_3_set_reg_remap(struct amdgpu_device *adev)
 478 {
 479         if (!amdgpu_sriov_vf(adev) && (PAGE_SIZE <= 4096)) {
 480                 adev->rmmio_remap.reg_offset = MMIO_REG_HOLE_OFFSET;
 481                 adev->rmmio_remap.bus_addr = adev->rmmio_base + MMIO_REG_HOLE_OFFSET;
 482         } else {
 483                 adev->rmmio_remap.reg_offset = SOC15_REG_OFFSET(NBIO, 0,
 484                         regBIF_BX_DEV0_EPF0_VF0_HDP_MEM_COHERENCY_FLUSH_CNTL) << 2;
 485                 adev->rmmio_remap.bus_addr = 0;
 486         }
 487 }
 488
 489 const struct amdgpu_nbio_funcs nbio_v4_3_funcs = {
 490         .get_hdp_flush_req_offset = nbio_v4_3_get_hdp_flush_req_offset,
 491         .get_hdp_flush_done_offset = nbio_v4_3_get_hdp_flush_done_offset,
 492         .get_pcie_index_offset = nbio_v4_3_get_pcie_index_offset,
 493         .get_pcie_data_offset = nbio_v4_3_get_pcie_data_offset,
 494         .get_rev_id = nbio_v4_3_get_rev_id,
 495         .mc_access_enable = nbio_v4_3_mc_access_enable,
 496         .get_memsize = nbio_v4_3_get_memsize,
 497         .sdma_doorbell_range = nbio_v4_3_sdma_doorbell_range,
 498         .vcn_doorbell_range = nbio_v4_3_vcn_doorbell_range,
 499         .gc_doorbell_init = nbio_v4_3_gc_doorbell_init,
 500         .enable_doorbell_aperture = nbio_v4_3_enable_doorbell_aperture,
 501         .enable_doorbell_selfring_aperture = nbio_v4_3_enable_doorbell_selfring_aperture,
 502         .ih_doorbell_range = nbio_v4_3_ih_doorbell_range,
 503         .update_medium_grain_clock_gating = nbio_v4_3_update_medium_grain_clock_gating,
 504         .update_medium_grain_light_sleep = nbio_v4_3_update_medium_grain_light_sleep,
 505         .get_clockgating_state = nbio_v4_3_get_clockgating_state,
 506         .ih_control = nbio_v4_3_ih_control,
 507         .init_registers = nbio_v4_3_init_registers,
 508         .remap_hdp_registers = nbio_v4_3_remap_hdp_registers,
 509         .get_rom_offset = nbio_v4_3_get_rom_offset,
 510         .program_aspm = nbio_v4_3_program_aspm,
 511         .set_reg_remap = nbio_v4_3_set_reg_remap,
 512 };
 513
 514
 515 static void nbio_v4_3_sriov_ih_doorbell_range(struct amdgpu_device *adev,
 516                                         bool use_doorbell, int doorbell_index)
 517 {
 518 }
 519
 520 static void nbio_v4_3_sriov_sdma_doorbell_range(struct amdgpu_device *adev, int instance,
 521                                           bool use_doorbell, int doorbell_index,
 522                                           int doorbell_size)
 523 {
 524 }
 525
 526 static void nbio_v4_3_sriov_vcn_doorbell_range(struct amdgpu_device *adev, bool use_doorbell,
 527                                          int doorbell_index, int instance)
 528 {
 529 }
 530
 531 static void nbio_v4_3_sriov_gc_doorbell_init(struct amdgpu_device *adev)
 532 {
 533 }
 534
 535 const struct amdgpu_nbio_funcs nbio_v4_3_sriov_funcs = {
 536         .get_hdp_flush_req_offset = nbio_v4_3_get_hdp_flush_req_offset,
 537         .get_hdp_flush_done_offset = nbio_v4_3_get_hdp_flush_done_offset,
 538         .get_pcie_index_offset = nbio_v4_3_get_pcie_index_offset,
 539         .get_pcie_data_offset = nbio_v4_3_get_pcie_data_offset,
 540         .get_rev_id = nbio_v4_3_get_rev_id,
 541         .mc_access_enable = nbio_v4_3_mc_access_enable,
 542         .get_memsize = nbio_v4_3_get_memsize,
 543         .sdma_doorbell_range = nbio_v4_3_sriov_sdma_doorbell_range,
 544         .vcn_doorbell_range = nbio_v4_3_sriov_vcn_doorbell_range,
 545         .gc_doorbell_init = nbio_v4_3_sriov_gc_doorbell_init,
 546         .enable_doorbell_aperture = nbio_v4_3_enable_doorbell_aperture,
 547         .enable_doorbell_selfring_aperture = nbio_v4_3_enable_doorbell_selfring_aperture,
 548         .ih_doorbell_range = nbio_v4_3_sriov_ih_doorbell_range,
 549         .update_medium_grain_clock_gating = nbio_v4_3_update_medium_grain_clock_gating,
 550         .update_medium_grain_light_sleep = nbio_v4_3_update_medium_grain_light_sleep,
 551         .get_clockgating_state = nbio_v4_3_get_clockgating_state,
 552         .ih_control = nbio_v4_3_ih_control,
 553         .init_registers = nbio_v4_3_init_registers,
 554         .remap_hdp_registers = nbio_v4_3_remap_hdp_registers,
 555         .get_rom_offset = nbio_v4_3_get_rom_offset,
 556         .set_reg_remap = nbio_v4_3_set_reg_remap,
 557 };
 558
 559 static int nbio_v4_3_set_ras_err_event_athub_irq_state(struct amdgpu_device *adev,
 560                                                        struct amdgpu_irq_src *src,
 561                                                        unsigned type,
 562                                                        enum amdgpu_interrupt_state state)
 563 {
 564         /* The ras_controller_irq enablement should be done in psp bl when it
 565          * tries to enable ras feature. Driver only need to set the correct interrupt
 566          * vector for bare-metal and sriov use case respectively
 567          */
 568         uint32_t bif_doorbell_int_cntl;
 569
 570         bif_doorbell_int_cntl = RREG32_SOC15(NBIO, 0, regBIF_BX0_BIF_DOORBELL_INT_CNTL);
 571         bif_doorbell_int_cntl = REG_SET_FIELD(bif_doorbell_int_cntl,
 572                                               BIF_BX0_BIF_DOORBELL_INT_CNTL,
 573                                               RAS_ATHUB_ERR_EVENT_INTERRUPT_DISABLE,
 574                                               (state == AMDGPU_IRQ_STATE_ENABLE) ? 0 : 1);
 575         WREG32_SOC15(NBIO, 0, regBIF_BX0_BIF_DOORBELL_INT_CNTL, bif_doorbell_int_cntl);
 576
 577         return 0;
 578 }
 579
 580 static int nbio_v4_3_process_err_event_athub_irq(struct amdgpu_device *adev,
 581                                                  struct amdgpu_irq_src *source,
 582                                                  struct amdgpu_iv_entry *entry)
 583 {
 584         /* By design, the ih cookie for err_event_athub_irq should be written
 585          * to bif ring. since bif ring is not enabled, just leave process callback
 586          * as a dummy one.
 587          */
 588         return 0;
 589 }
 590
 591 static const struct amdgpu_irq_src_funcs nbio_v4_3_ras_err_event_athub_irq_funcs = {
 592         .set = nbio_v4_3_set_ras_err_event_athub_irq_state,
 593         .process = nbio_v4_3_process_err_event_athub_irq,
 594 };
 595
 596 static void nbio_v4_3_handle_ras_err_event_athub_intr_no_bifring(struct amdgpu_device *adev)
 597 {
 598         uint32_t bif_doorbell_int_cntl;
 599
 600         bif_doorbell_int_cntl = RREG32_SOC15(NBIO, 0, regBIF_BX0_BIF_DOORBELL_INT_CNTL);
 601         if (REG_GET_FIELD(bif_doorbell_int_cntl,
 602                           BIF_DOORBELL_INT_CNTL,
 603                           RAS_ATHUB_ERR_EVENT_INTERRUPT_STATUS)) {
 604                 /* driver has to clear the interrupt status when bif ring is disabled */
 605                 bif_doorbell_int_cntl = REG_SET_FIELD(bif_doorbell_int_cntl,
 606                                                 BIF_DOORBELL_INT_CNTL,
 607                                                 RAS_ATHUB_ERR_EVENT_INTERRUPT_CLEAR, 1);
 608                 WREG32_SOC15(NBIO, 0, regBIF_BX0_BIF_DOORBELL_INT_CNTL, bif_doorbell_int_cntl);
 609                 amdgpu_ras_global_ras_isr(adev);
 610         }
 611 }
 612
 613 static int nbio_v4_3_init_ras_err_event_athub_interrupt(struct amdgpu_device *adev)
 614 {
 615
 616         int r;
 617
 618         /* init the irq funcs */
 619         adev->nbio.ras_err_event_athub_irq.funcs =
 620                 &nbio_v4_3_ras_err_event_athub_irq_funcs;
 621         adev->nbio.ras_err_event_athub_irq.num_types = 1;
 622
 623         /* register ras err event athub interrupt
 624          * nbio v4_3 uses the same irq source as nbio v7_4 */
 625         r = amdgpu_irq_add_id(adev, SOC21_IH_CLIENTID_BIF,
 626                               NBIF_7_4__SRCID__ERREVENT_ATHUB_INTERRUPT,
 627                               &adev->nbio.ras_err_event_athub_irq);
 628
 629         return r;
 630 }
 631
 632 struct amdgpu_nbio_ras nbio_v4_3_ras = {
 633         .handle_ras_err_event_athub_intr_no_bifring = nbio_v4_3_handle_ras_err_event_athub_intr_no_bifring,
 634         .init_ras_err_event_athub_interrupt = nbio_v4_3_init_ras_err_event_athub_interrupt,
 635 };