drivers/gpu/drm/amd/amdgpu/nbio_v7_11.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_v7_11.h"
  26
  27 #include "nbio/nbio_7_11_0_offset.h"
  28 #include "nbio/nbio_7_11_0_sh_mask.h"
  29 #include <uapi/linux/kfd_ioctl.h>
  30
  31 static void nbio_v7_11_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_v7_11_get_rev_id(struct amdgpu_device *adev)
  40 {
  41         u32 tmp;
  42
  43         tmp = RREG32_SOC15(NBIO, 0, regRCC_STRAP1_RCC_DEV0_EPF0_STRAP0);
  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_v7_11_mc_access_enable(struct amdgpu_device *adev, bool enable)
  51 {
  52         if (enable)
  53                 WREG32_SOC15(NBIO, 0, regBIF_BX1_BIF_FB_EN,
  54                         BIF_BX1_BIF_FB_EN__FB_READ_EN_MASK |
  55                         BIF_BX1_BIF_FB_EN__FB_WRITE_EN_MASK);
  56         else
  57                 WREG32_SOC15(NBIO, 0, regBIF_BX1_BIF_FB_EN, 0);
  58 }
  59
  60 static u32 nbio_v7_11_get_memsize(struct amdgpu_device *adev)
  61 {
  62         return RREG32_SOC15(NBIO, 0, regRCC_DEV0_EPF0_0_RCC_CONFIG_MEMSIZE);
  63 }
  64
  65 static void nbio_v7_11_sdma_doorbell_range(struct amdgpu_device *adev, int instance,
  66                                           bool use_doorbell, int doorbell_index,
  67                                           int doorbell_size)
  68 {
  69         u32 reg = SOC15_REG_OFFSET(NBIO, 0, regGDC0_BIF_CSDMA_DOORBELL_RANGE);
  70         u32 doorbell_range = RREG32_PCIE_PORT(reg);
  71
  72         if (use_doorbell) {
  73                 doorbell_range = REG_SET_FIELD(doorbell_range,
  74                                                GDC0_BIF_CSDMA_DOORBELL_RANGE,
  75                                                OFFSET, doorbell_index);
  76                 doorbell_range = REG_SET_FIELD(doorbell_range,
  77                                                GDC0_BIF_CSDMA_DOORBELL_RANGE,
  78                                                SIZE, doorbell_size);
  79         } else {
  80                 doorbell_range = REG_SET_FIELD(doorbell_range,
  81                                                GDC0_BIF_CSDMA_DOORBELL_RANGE,
  82                                                SIZE, 0);
  83         }
  84
  85         WREG32_PCIE_PORT(reg, doorbell_range);
  86 }
  87
  88 static void nbio_v7_11_vpe_doorbell_range(struct amdgpu_device *adev, int instance,
  89                                           bool use_doorbell, int doorbell_index,
  90                                           int doorbell_size)
  91 {
  92         u32 reg = SOC15_REG_OFFSET(NBIO, 0, regGDC0_BIF_VPE_DOORBELL_RANGE);
  93         u32 doorbell_range = RREG32_PCIE_PORT(reg);
  94
  95         if (use_doorbell) {
  96                 doorbell_range = REG_SET_FIELD(doorbell_range,
  97                                                GDC0_BIF_VPE_DOORBELL_RANGE,
  98                                                OFFSET, doorbell_index);
  99                 doorbell_range = REG_SET_FIELD(doorbell_range,
 100                                                GDC0_BIF_VPE_DOORBELL_RANGE,
 101                                                SIZE, doorbell_size);
 102         } else {
 103                 doorbell_range = REG_SET_FIELD(doorbell_range,
 104                                                GDC0_BIF_VPE_DOORBELL_RANGE,
 105                                                SIZE, 0);
 106         }
 107
 108         WREG32_PCIE_PORT(reg, doorbell_range);
 109 }
 110
 111 static void nbio_v7_11_vcn_doorbell_range(struct amdgpu_device *adev,
 112                                           bool use_doorbell,
 113                                           int doorbell_index, int instance)
 114 {
 115         u32 reg = SOC15_REG_OFFSET(NBIO, 0, regGDC0_BIF_VCN0_DOORBELL_RANGE);
 116         u32 doorbell_range = RREG32_PCIE_PORT(reg);
 117
 118         if (use_doorbell) {
 119                 doorbell_range = REG_SET_FIELD(doorbell_range,
 120                                                GDC0_BIF_VCN0_DOORBELL_RANGE, OFFSET,
 121                                                doorbell_index);
 122                 doorbell_range = REG_SET_FIELD(doorbell_range,
 123                                                GDC0_BIF_VCN0_DOORBELL_RANGE, SIZE, 8);
 124         } else {
 125                 doorbell_range = REG_SET_FIELD(doorbell_range,
 126                                                GDC0_BIF_VCN0_DOORBELL_RANGE, SIZE, 0);
 127         }
 128
 129         WREG32_PCIE_PORT(reg, doorbell_range);
 130 }
 131
 132 static void nbio_v7_11_enable_doorbell_aperture(struct amdgpu_device *adev,
 133                                                bool enable)
 134 {
 135         u32 reg;
 136
 137
 138         reg = RREG32_SOC15(NBIO, 0, regRCC_DEV0_EPF0_0_RCC_DOORBELL_APER_EN);
 139         reg = REG_SET_FIELD(reg, RCC_DEV0_EPF0_0_RCC_DOORBELL_APER_EN,
 140                             BIF_DOORBELL_APER_EN, enable ? 1 : 0);
 141
 142         WREG32_SOC15(NBIO, 0, regRCC_DEV0_EPF0_0_RCC_DOORBELL_APER_EN, reg);
 143 }
 144
 145 static void nbio_v7_11_enable_doorbell_selfring_aperture(struct amdgpu_device *adev,
 146                                                         bool enable)
 147 {
 148         u32 tmp = 0;
 149
 150         if (enable) {
 151                 tmp = REG_SET_FIELD(tmp, BIF_BX_PF1_DOORBELL_SELFRING_GPA_APER_CNTL,
 152                                 DOORBELL_SELFRING_GPA_APER_EN, 1) |
 153                       REG_SET_FIELD(tmp, BIF_BX_PF1_DOORBELL_SELFRING_GPA_APER_CNTL,
 154                                 DOORBELL_SELFRING_GPA_APER_MODE, 1) |
 155                       REG_SET_FIELD(tmp, BIF_BX_PF1_DOORBELL_SELFRING_GPA_APER_CNTL,
 156                                 DOORBELL_SELFRING_GPA_APER_SIZE, 0);
 157
 158                 WREG32_SOC15(NBIO, 0,
 159                         regBIF_BX_PF1_DOORBELL_SELFRING_GPA_APER_BASE_LOW,
 160                         lower_32_bits(adev->doorbell.base));
 161                 WREG32_SOC15(NBIO, 0,
 162                         regBIF_BX_PF1_DOORBELL_SELFRING_GPA_APER_BASE_HIGH,
 163                         upper_32_bits(adev->doorbell.base));
 164         }
 165
 166         WREG32_SOC15(NBIO, 0, regBIF_BX_PF1_DOORBELL_SELFRING_GPA_APER_CNTL, tmp);
 167 }
 168
 169
 170 static void nbio_v7_11_ih_doorbell_range(struct amdgpu_device *adev,
 171                                         bool use_doorbell, int doorbell_index)
 172 {
 173         u32 ih_doorbell_range = RREG32_SOC15(NBIO, 0,regGDC0_BIF_IH_DOORBELL_RANGE);
 174
 175         if (use_doorbell) {
 176                 ih_doorbell_range = REG_SET_FIELD(ih_doorbell_range,
 177                                                   GDC0_BIF_IH_DOORBELL_RANGE, OFFSET,
 178                                                   doorbell_index);
 179                 ih_doorbell_range = REG_SET_FIELD(ih_doorbell_range,
 180                                                   GDC0_BIF_IH_DOORBELL_RANGE, SIZE,
 181                                                   2);
 182         } else {
 183                 ih_doorbell_range = REG_SET_FIELD(ih_doorbell_range,
 184                                                   GDC0_BIF_IH_DOORBELL_RANGE, SIZE,
 185                                                   0);
 186         }
 187
 188         WREG32_SOC15(NBIO, 0, regGDC0_BIF_IH_DOORBELL_RANGE,
 189                          ih_doorbell_range);
 190 }
 191
 192 static void nbio_v7_11_ih_control(struct amdgpu_device *adev)
 193 {
 194         u32 interrupt_cntl;
 195
 196         /* setup interrupt control */
 197         WREG32_SOC15(NBIO, 0, regBIF_BX1_INTERRUPT_CNTL2,
 198                      adev->dummy_page_addr >> 8);
 199
 200         interrupt_cntl = RREG32_SOC15(NBIO, 0, regBIF_BX1_INTERRUPT_CNTL);
 201         /*
 202          * INTERRUPT_CNTL__IH_DUMMY_RD_OVERRIDE_MASK=0 - dummy read disabled with msi, enabled without msi
 203          * INTERRUPT_CNTL__IH_DUMMY_RD_OVERRIDE_MASK=1 - dummy read controlled by IH_DUMMY_RD_EN
 204          */
 205         interrupt_cntl = REG_SET_FIELD(interrupt_cntl, BIF_BX1_INTERRUPT_CNTL,
 206                                        IH_DUMMY_RD_OVERRIDE, 0);
 207
 208         /* INTERRUPT_CNTL__IH_REQ_NONSNOOP_EN_MASK=1 if ring is in non-cacheable memory, e.g., vram */
 209         interrupt_cntl = REG_SET_FIELD(interrupt_cntl, BIF_BX1_INTERRUPT_CNTL,
 210                                        IH_REQ_NONSNOOP_EN, 0);
 211
 212         WREG32_SOC15(NBIO, 0, regBIF_BX1_INTERRUPT_CNTL, interrupt_cntl);
 213 }
 214
 215 static u32 nbio_v7_11_get_hdp_flush_req_offset(struct amdgpu_device *adev)
 216 {
 217         return SOC15_REG_OFFSET(NBIO, 0, regBIF_BX_PF1_GPU_HDP_FLUSH_REQ);
 218 }
 219
 220 static u32 nbio_v7_11_get_hdp_flush_done_offset(struct amdgpu_device *adev)
 221 {
 222         return SOC15_REG_OFFSET(NBIO, 0, regBIF_BX_PF1_GPU_HDP_FLUSH_DONE);
 223 }
 224
 225 static u32 nbio_v7_11_get_pcie_index_offset(struct amdgpu_device *adev)
 226 {
 227         return SOC15_REG_OFFSET(NBIO, 0, regBIF_BX1_PCIE_INDEX2);
 228 }
 229
 230 static u32 nbio_v7_11_get_pcie_data_offset(struct amdgpu_device *adev)
 231 {
 232         return SOC15_REG_OFFSET(NBIO, 0, regBIF_BX1_PCIE_DATA2);
 233 }
 234
 235 static u32 nbio_v7_11_get_pcie_port_index_offset(struct amdgpu_device *adev)
 236 {
 237         return SOC15_REG_OFFSET(NBIO, 0, regBIF_BX_PF1_RSMU_INDEX);
 238 }
 239
 240 static u32 nbio_v7_11_get_pcie_port_data_offset(struct amdgpu_device *adev)
 241 {
 242         return SOC15_REG_OFFSET(NBIO, 0, regBIF_BX_PF1_RSMU_DATA);
 243 }
 244
 245 const struct nbio_hdp_flush_reg nbio_v7_11_hdp_flush_reg = {
 246         .ref_and_mask_cp0 = BIF_BX_PF1_GPU_HDP_FLUSH_DONE__CP0_MASK,
 247         .ref_and_mask_cp1 = BIF_BX_PF1_GPU_HDP_FLUSH_DONE__CP1_MASK,
 248         .ref_and_mask_cp2 = BIF_BX_PF1_GPU_HDP_FLUSH_DONE__CP2_MASK,
 249         .ref_and_mask_cp3 = BIF_BX_PF1_GPU_HDP_FLUSH_DONE__CP3_MASK,
 250         .ref_and_mask_cp4 = BIF_BX_PF1_GPU_HDP_FLUSH_DONE__CP4_MASK,
 251         .ref_and_mask_cp5 = BIF_BX_PF1_GPU_HDP_FLUSH_DONE__CP5_MASK,
 252         .ref_and_mask_cp6 = BIF_BX_PF1_GPU_HDP_FLUSH_DONE__CP6_MASK,
 253         .ref_and_mask_cp7 = BIF_BX_PF1_GPU_HDP_FLUSH_DONE__CP7_MASK,
 254         .ref_and_mask_cp8 = BIF_BX_PF1_GPU_HDP_FLUSH_DONE__CP8_MASK,
 255         .ref_and_mask_cp9 = BIF_BX_PF1_GPU_HDP_FLUSH_DONE__CP9_MASK,
 256         .ref_and_mask_sdma0 = BIF_BX_PF1_GPU_HDP_FLUSH_DONE__SDMA0_MASK,
 257         .ref_and_mask_sdma1 = BIF_BX_PF1_GPU_HDP_FLUSH_DONE__SDMA1_MASK,
 258 };
 259
 260 static void nbio_v7_11_init_registers(struct amdgpu_device *adev)
 261 {
 262         uint32_t def, data;
 263
 264         def = data = RREG32_SOC15(NBIO, 0, regBIF_BIF256_CI256_RC3X4_USB4_PCIE_MST_CTRL_3);
 265         data = REG_SET_FIELD(data, BIF_BIF256_CI256_RC3X4_USB4_PCIE_MST_CTRL_3,
 266                                 CI_SWUS_MAX_READ_REQUEST_SIZE_MODE, 1);
 267         data = REG_SET_FIELD(data, BIF_BIF256_CI256_RC3X4_USB4_PCIE_MST_CTRL_3,
 268                                 CI_SWUS_MAX_READ_REQUEST_SIZE_PRIV, 1);
 269
 270         if (def != data)
 271                 WREG32_SOC15(NBIO, 0, regBIF_BIF256_CI256_RC3X4_USB4_PCIE_MST_CTRL_3, data);
 272
 273 }
 274
 275 static void nbio_v7_11_update_medium_grain_clock_gating(struct amdgpu_device *adev,
 276                                                        bool enable)
 277 {
 278         uint32_t def, data;
 279
 280         if (!(adev->cg_flags & AMD_CG_SUPPORT_BIF_MGCG))
 281                 return;
 282
 283         def = data = RREG32_SOC15(NBIO, 0, regBIF_BIF256_CI256_RC3X4_USB4_CPM_CONTROL);
 284         if (enable) {
 285                 data |= (BIF_BIF256_CI256_RC3X4_USB4_CPM_CONTROL__LCLK_DYN_GATE_ENABLE_MASK |
 286                          BIF_BIF256_CI256_RC3X4_USB4_CPM_CONTROL__TXCLK_DYN_GATE_ENABLE_MASK |
 287                          BIF_BIF256_CI256_RC3X4_USB4_CPM_CONTROL__TXCLK_LCNT_GATE_ENABLE_MASK |
 288                          BIF_BIF256_CI256_RC3X4_USB4_CPM_CONTROL__TXCLK_REGS_GATE_ENABLE_MASK |
 289                          BIF_BIF256_CI256_RC3X4_USB4_CPM_CONTROL__TXCLK_PRBS_GATE_ENABLE_MASK |
 290                          BIF_BIF256_CI256_RC3X4_USB4_CPM_CONTROL__REFCLK_REGS_GATE_ENABLE_MASK);
 291         } else {
 292                 data &= ~(BIF_BIF256_CI256_RC3X4_USB4_CPM_CONTROL__LCLK_DYN_GATE_ENABLE_MASK |
 293                           BIF_BIF256_CI256_RC3X4_USB4_CPM_CONTROL__TXCLK_DYN_GATE_ENABLE_MASK |
 294                           BIF_BIF256_CI256_RC3X4_USB4_CPM_CONTROL__TXCLK_LCNT_GATE_ENABLE_MASK |
 295                           BIF_BIF256_CI256_RC3X4_USB4_CPM_CONTROL__TXCLK_REGS_GATE_ENABLE_MASK |
 296                           BIF_BIF256_CI256_RC3X4_USB4_CPM_CONTROL__TXCLK_PRBS_GATE_ENABLE_MASK |
 297                           BIF_BIF256_CI256_RC3X4_USB4_CPM_CONTROL__REFCLK_REGS_GATE_ENABLE_MASK);
 298         }
 299
 300         if (def != data)
 301                 WREG32_SOC15(NBIO, 0, regBIF_BIF256_CI256_RC3X4_USB4_CPM_CONTROL, data);
 302 }
 303
 304 static void nbio_v7_11_update_medium_grain_light_sleep(struct amdgpu_device *adev,
 305                                                       bool enable)
 306 {
 307         uint32_t def, data;
 308
 309         if (!(adev->cg_flags & AMD_CG_SUPPORT_BIF_LS))
 310                 return;
 311
 312         def = data = RREG32_SOC15(NBIO, 0, regBIF_BIF256_CI256_RC3X4_USB4_PCIE_CNTL2);
 313         if (enable)
 314                 data |= BIF_BIF256_CI256_RC3X4_USB4_PCIE_CNTL2__SLV_MEM_LS_EN_MASK;
 315         else
 316                 data &= ~BIF_BIF256_CI256_RC3X4_USB4_PCIE_CNTL2__SLV_MEM_LS_EN_MASK;
 317
 318         if (def != data)
 319                 WREG32_SOC15(NBIO, 0, regBIF_BIF256_CI256_RC3X4_USB4_PCIE_CNTL2, data);
 320
 321         def = data = RREG32_SOC15(NBIO, 0, regBIF_BIF256_CI256_RC3X4_USB4_PCIE_TX_POWER_CTRL_1);
 322         if (enable) {
 323                 data |= (BIF_BIF256_CI256_RC3X4_USB4_PCIE_TX_POWER_CTRL_1__MST_MEM_LS_EN_MASK |
 324                         BIF_BIF256_CI256_RC3X4_USB4_PCIE_TX_POWER_CTRL_1__REPLAY_MEM_LS_EN_MASK);
 325         } else {
 326                 data &= ~(BIF_BIF256_CI256_RC3X4_USB4_PCIE_TX_POWER_CTRL_1__MST_MEM_LS_EN_MASK |
 327                         BIF_BIF256_CI256_RC3X4_USB4_PCIE_TX_POWER_CTRL_1__REPLAY_MEM_LS_EN_MASK);
 328         }
 329
 330         if (def != data)
 331                 WREG32_SOC15(NBIO, 0, regBIF_BIF256_CI256_RC3X4_USB4_PCIE_TX_POWER_CTRL_1, data);
 332 }
 333
 334 static void nbio_v7_11_get_clockgating_state(struct amdgpu_device *adev,
 335                                             u64 *flags)
 336 {
 337         uint32_t data;
 338
 339         /* AMD_CG_SUPPORT_BIF_MGCG */
 340         data = RREG32_SOC15(NBIO, 0, regBIF_BIF256_CI256_RC3X4_USB4_CPM_CONTROL);
 341         if (data & BIF_BIF256_CI256_RC3X4_USB4_CPM_CONTROL__LCLK_DYN_GATE_ENABLE_MASK)
 342                 *flags |= AMD_CG_SUPPORT_BIF_MGCG;
 343
 344         /* AMD_CG_SUPPORT_BIF_LS */
 345         data = RREG32_SOC15(NBIO, 0, regBIF_BIF256_CI256_RC3X4_USB4_PCIE_CNTL2);
 346         if (data & BIF_BIF256_CI256_RC3X4_USB4_PCIE_CNTL2__SLV_MEM_LS_EN_MASK)
 347                 *flags |= AMD_CG_SUPPORT_BIF_LS;
 348 }
 349
 350 const struct amdgpu_nbio_funcs nbio_v7_11_funcs = {
 351         .get_hdp_flush_req_offset = nbio_v7_11_get_hdp_flush_req_offset,
 352         .get_hdp_flush_done_offset = nbio_v7_11_get_hdp_flush_done_offset,
 353         .get_pcie_index_offset = nbio_v7_11_get_pcie_index_offset,
 354         .get_pcie_data_offset = nbio_v7_11_get_pcie_data_offset,
 355         .get_pcie_port_index_offset = nbio_v7_11_get_pcie_port_index_offset,
 356         .get_pcie_port_data_offset = nbio_v7_11_get_pcie_port_data_offset,
 357         .get_rev_id = nbio_v7_11_get_rev_id,
 358         .mc_access_enable = nbio_v7_11_mc_access_enable,
 359         .get_memsize = nbio_v7_11_get_memsize,
 360         .sdma_doorbell_range = nbio_v7_11_sdma_doorbell_range,
 361         .vcn_doorbell_range = nbio_v7_11_vcn_doorbell_range,
 362         .vpe_doorbell_range = nbio_v7_11_vpe_doorbell_range,
 363         .enable_doorbell_aperture = nbio_v7_11_enable_doorbell_aperture,
 364         .enable_doorbell_selfring_aperture = nbio_v7_11_enable_doorbell_selfring_aperture,
 365         .ih_doorbell_range = nbio_v7_11_ih_doorbell_range,
 366         .update_medium_grain_clock_gating = nbio_v7_11_update_medium_grain_clock_gating,
 367         .update_medium_grain_light_sleep = nbio_v7_11_update_medium_grain_light_sleep,
 368         .get_clockgating_state = nbio_v7_11_get_clockgating_state,
 369         .ih_control = nbio_v7_11_ih_control,
 370         .init_registers = nbio_v7_11_init_registers,
 371         .remap_hdp_registers = nbio_v7_11_remap_hdp_registers,
 372 };