1 /* 2 * Copyright 2019 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_v2_3.h" 26 27 #include "nbio/nbio_2_3_default.h" 28 #include "nbio/nbio_2_3_offset.h" 29 #include "nbio/nbio_2_3_sh_mask.h" 30 #include <uapi/linux/kfd_ioctl.h> 31 #include <linux/pci.h> 32 33 #define smnPCIE_CONFIG_CNTL 0x11180044 34 #define smnCPM_CONTROL 0x11180460 35 #define smnPCIE_CNTL2 0x11180070 36 #define smnPCIE_LC_CNTL 0x11140280 37 #define smnPCIE_LC_CNTL3 0x111402d4 38 #define smnPCIE_LC_CNTL6 0x111402ec 39 #define smnPCIE_LC_CNTL7 0x111402f0 40 #define smnBIF_CFG_DEV0_EPF0_DEVICE_CNTL2 0x1014008c 41 #define smnRCC_EP_DEV0_0_EP_PCIE_TX_LTR_CNTL 0x10123538 42 #define smnBIF_CFG_DEV0_EPF0_PCIE_LTR_CAP 0x10140324 43 #define smnPSWUSP0_PCIE_LC_CNTL2 0x111402c4 44 #define smnNBIF_MGCG_CTRL_LCLK 0x1013a21c 45 46 #define mmBIF_SDMA2_DOORBELL_RANGE 0x01d6 47 #define mmBIF_SDMA2_DOORBELL_RANGE_BASE_IDX 2 48 #define mmBIF_SDMA3_DOORBELL_RANGE 0x01d7 49 #define mmBIF_SDMA3_DOORBELL_RANGE_BASE_IDX 2 50 51 #define mmBIF_MMSCH1_DOORBELL_RANGE 0x01d8 52 #define mmBIF_MMSCH1_DOORBELL_RANGE_BASE_IDX 2 53 54 #define smnPCIE_LC_LINK_WIDTH_CNTL 0x11140288 55 56 #define GPU_HDP_FLUSH_DONE__RSVD_ENG0_MASK 0x00001000L /* Don't use. Firmware uses this bit internally */ 57 #define GPU_HDP_FLUSH_DONE__RSVD_ENG1_MASK 0x00002000L 58 #define GPU_HDP_FLUSH_DONE__RSVD_ENG2_MASK 0x00004000L 59 #define GPU_HDP_FLUSH_DONE__RSVD_ENG3_MASK 0x00008000L 60 #define GPU_HDP_FLUSH_DONE__RSVD_ENG4_MASK 0x00010000L 61 #define GPU_HDP_FLUSH_DONE__RSVD_ENG5_MASK 0x00020000L 62 #define GPU_HDP_FLUSH_DONE__RSVD_ENG6_MASK 0x00040000L 63 #define GPU_HDP_FLUSH_DONE__RSVD_ENG7_MASK 0x00080000L 64 #define GPU_HDP_FLUSH_DONE__RSVD_ENG8_MASK 0x00100000L 65 66 static void nbio_v2_3_remap_hdp_registers(struct amdgpu_device *adev) 67 { 68 WREG32_SOC15(NBIO, 0, mmREMAP_HDP_MEM_FLUSH_CNTL, 69 adev->rmmio_remap.reg_offset + KFD_MMIO_REMAP_HDP_MEM_FLUSH_CNTL); 70 WREG32_SOC15(NBIO, 0, mmREMAP_HDP_REG_FLUSH_CNTL, 71 adev->rmmio_remap.reg_offset + KFD_MMIO_REMAP_HDP_REG_FLUSH_CNTL); 72 } 73 74 static u32 nbio_v2_3_get_rev_id(struct amdgpu_device *adev) 75 { 76 u32 tmp; 77 78 /* 79 * guest vm gets 0xffffffff when reading RCC_DEV0_EPF0_STRAP0, 80 * therefore we force rev_id to 0 (which is the default value) 81 */ 82 if (amdgpu_sriov_vf(adev)) { 83 return 0; 84 } 85 86 tmp = RREG32_SOC15(NBIO, 0, mmRCC_DEV0_EPF0_STRAP0); 87 tmp &= RCC_DEV0_EPF0_STRAP0__STRAP_ATI_REV_ID_DEV0_F0_MASK; 88 tmp >>= RCC_DEV0_EPF0_STRAP0__STRAP_ATI_REV_ID_DEV0_F0__SHIFT; 89 90 return tmp; 91 } 92 93 static void nbio_v2_3_mc_access_enable(struct amdgpu_device *adev, bool enable) 94 { 95 if (enable) 96 WREG32_SOC15(NBIO, 0, mmBIF_FB_EN, 97 BIF_FB_EN__FB_READ_EN_MASK | 98 BIF_FB_EN__FB_WRITE_EN_MASK); 99 else 100 WREG32_SOC15(NBIO, 0, mmBIF_FB_EN, 0); 101 } 102 103 static u32 nbio_v2_3_get_memsize(struct amdgpu_device *adev) 104 { 105 return RREG32_SOC15(NBIO, 0, mmRCC_DEV0_EPF0_RCC_CONFIG_MEMSIZE); 106 } 107 108 static void nbio_v2_3_sdma_doorbell_range(struct amdgpu_device *adev, int instance, 109 bool use_doorbell, int doorbell_index, 110 int doorbell_size) 111 { 112 u32 reg = instance == 0 ? SOC15_REG_OFFSET(NBIO, 0, mmBIF_SDMA0_DOORBELL_RANGE) : 113 instance == 1 ? SOC15_REG_OFFSET(NBIO, 0, mmBIF_SDMA1_DOORBELL_RANGE) : 114 instance == 2 ? SOC15_REG_OFFSET(NBIO, 0, mmBIF_SDMA2_DOORBELL_RANGE) : 115 SOC15_REG_OFFSET(NBIO, 0, mmBIF_SDMA3_DOORBELL_RANGE); 116 117 u32 doorbell_range = RREG32(reg); 118 119 if (use_doorbell) { 120 doorbell_range = REG_SET_FIELD(doorbell_range, 121 BIF_SDMA0_DOORBELL_RANGE, OFFSET, 122 doorbell_index); 123 doorbell_range = REG_SET_FIELD(doorbell_range, 124 BIF_SDMA0_DOORBELL_RANGE, SIZE, 125 doorbell_size); 126 } else 127 doorbell_range = REG_SET_FIELD(doorbell_range, 128 BIF_SDMA0_DOORBELL_RANGE, SIZE, 129 0); 130 131 WREG32(reg, doorbell_range); 132 } 133 134 static void nbio_v2_3_vcn_doorbell_range(struct amdgpu_device *adev, bool use_doorbell, 135 int doorbell_index, int instance) 136 { 137 u32 reg = instance ? SOC15_REG_OFFSET(NBIO, 0, mmBIF_MMSCH1_DOORBELL_RANGE) : 138 SOC15_REG_OFFSET(NBIO, 0, mmBIF_MMSCH0_DOORBELL_RANGE); 139 140 u32 doorbell_range = RREG32(reg); 141 142 if (use_doorbell) { 143 doorbell_range = REG_SET_FIELD(doorbell_range, 144 BIF_MMSCH0_DOORBELL_RANGE, OFFSET, 145 doorbell_index); 146 doorbell_range = REG_SET_FIELD(doorbell_range, 147 BIF_MMSCH0_DOORBELL_RANGE, SIZE, 8); 148 } else 149 doorbell_range = REG_SET_FIELD(doorbell_range, 150 BIF_MMSCH0_DOORBELL_RANGE, SIZE, 0); 151 152 WREG32(reg, doorbell_range); 153 } 154 155 static void nbio_v2_3_enable_doorbell_aperture(struct amdgpu_device *adev, 156 bool enable) 157 { 158 WREG32_FIELD15(NBIO, 0, RCC_DEV0_EPF0_RCC_DOORBELL_APER_EN, BIF_DOORBELL_APER_EN, 159 enable ? 1 : 0); 160 } 161 162 static void nbio_v2_3_enable_doorbell_selfring_aperture(struct amdgpu_device *adev, 163 bool enable) 164 { 165 u32 tmp = 0; 166 167 if (enable) { 168 tmp = REG_SET_FIELD(tmp, BIF_BX_PF_DOORBELL_SELFRING_GPA_APER_CNTL, 169 DOORBELL_SELFRING_GPA_APER_EN, 1) | 170 REG_SET_FIELD(tmp, BIF_BX_PF_DOORBELL_SELFRING_GPA_APER_CNTL, 171 DOORBELL_SELFRING_GPA_APER_MODE, 1) | 172 REG_SET_FIELD(tmp, BIF_BX_PF_DOORBELL_SELFRING_GPA_APER_CNTL, 173 DOORBELL_SELFRING_GPA_APER_SIZE, 0); 174 175 WREG32_SOC15(NBIO, 0, mmBIF_BX_PF_DOORBELL_SELFRING_GPA_APER_BASE_LOW, 176 lower_32_bits(adev->doorbell.base)); 177 WREG32_SOC15(NBIO, 0, mmBIF_BX_PF_DOORBELL_SELFRING_GPA_APER_BASE_HIGH, 178 upper_32_bits(adev->doorbell.base)); 179 } 180 181 WREG32_SOC15(NBIO, 0, mmBIF_BX_PF_DOORBELL_SELFRING_GPA_APER_CNTL, 182 tmp); 183 } 184 185 186 static void nbio_v2_3_ih_doorbell_range(struct amdgpu_device *adev, 187 bool use_doorbell, int doorbell_index) 188 { 189 u32 ih_doorbell_range = RREG32_SOC15(NBIO, 0, mmBIF_IH_DOORBELL_RANGE); 190 191 if (use_doorbell) { 192 ih_doorbell_range = REG_SET_FIELD(ih_doorbell_range, 193 BIF_IH_DOORBELL_RANGE, OFFSET, 194 doorbell_index); 195 ih_doorbell_range = REG_SET_FIELD(ih_doorbell_range, 196 BIF_IH_DOORBELL_RANGE, SIZE, 197 2); 198 } else 199 ih_doorbell_range = REG_SET_FIELD(ih_doorbell_range, 200 BIF_IH_DOORBELL_RANGE, SIZE, 201 0); 202 203 WREG32_SOC15(NBIO, 0, mmBIF_IH_DOORBELL_RANGE, ih_doorbell_range); 204 } 205 206 static void nbio_v2_3_ih_control(struct amdgpu_device *adev) 207 { 208 u32 interrupt_cntl; 209 210 /* setup interrupt control */ 211 WREG32_SOC15(NBIO, 0, mmINTERRUPT_CNTL2, adev->dummy_page_addr >> 8); 212 213 interrupt_cntl = RREG32_SOC15(NBIO, 0, mmINTERRUPT_CNTL); 214 /* 215 * INTERRUPT_CNTL__IH_DUMMY_RD_OVERRIDE_MASK=0 - dummy read disabled with msi, enabled without msi 216 * INTERRUPT_CNTL__IH_DUMMY_RD_OVERRIDE_MASK=1 - dummy read controlled by IH_DUMMY_RD_EN 217 */ 218 interrupt_cntl = REG_SET_FIELD(interrupt_cntl, INTERRUPT_CNTL, 219 IH_DUMMY_RD_OVERRIDE, 0); 220 221 /* INTERRUPT_CNTL__IH_REQ_NONSNOOP_EN_MASK=1 if ring is in non-cacheable memory, e.g., vram */ 222 interrupt_cntl = REG_SET_FIELD(interrupt_cntl, INTERRUPT_CNTL, 223 IH_REQ_NONSNOOP_EN, 0); 224 225 WREG32_SOC15(NBIO, 0, mmINTERRUPT_CNTL, interrupt_cntl); 226 } 227 228 static void nbio_v2_3_update_medium_grain_clock_gating(struct amdgpu_device *adev, 229 bool enable) 230 { 231 uint32_t def, data; 232 233 if (!(adev->cg_flags & AMD_CG_SUPPORT_BIF_MGCG)) 234 return; 235 236 def = data = RREG32_PCIE(smnCPM_CONTROL); 237 if (enable) { 238 data |= (CPM_CONTROL__LCLK_DYN_GATE_ENABLE_MASK | 239 CPM_CONTROL__TXCLK_DYN_GATE_ENABLE_MASK | 240 CPM_CONTROL__TXCLK_LCNT_GATE_ENABLE_MASK | 241 CPM_CONTROL__TXCLK_REGS_GATE_ENABLE_MASK | 242 CPM_CONTROL__TXCLK_PRBS_GATE_ENABLE_MASK | 243 CPM_CONTROL__REFCLK_REGS_GATE_ENABLE_MASK); 244 } else { 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 } 252 253 if (def != data) 254 WREG32_PCIE(smnCPM_CONTROL, data); 255 } 256 257 static void nbio_v2_3_update_medium_grain_light_sleep(struct amdgpu_device *adev, 258 bool enable) 259 { 260 uint32_t def, data; 261 262 if (!(adev->cg_flags & AMD_CG_SUPPORT_BIF_LS)) 263 return; 264 265 def = data = RREG32_PCIE(smnPCIE_CNTL2); 266 if (enable) { 267 data |= (PCIE_CNTL2__SLV_MEM_LS_EN_MASK | 268 PCIE_CNTL2__MST_MEM_LS_EN_MASK | 269 PCIE_CNTL2__REPLAY_MEM_LS_EN_MASK); 270 } else { 271 data &= ~(PCIE_CNTL2__SLV_MEM_LS_EN_MASK | 272 PCIE_CNTL2__MST_MEM_LS_EN_MASK | 273 PCIE_CNTL2__REPLAY_MEM_LS_EN_MASK); 274 } 275 276 if (def != data) 277 WREG32_PCIE(smnPCIE_CNTL2, data); 278 } 279 280 static void nbio_v2_3_get_clockgating_state(struct amdgpu_device *adev, 281 u64 *flags) 282 { 283 int data; 284 285 /* AMD_CG_SUPPORT_BIF_MGCG */ 286 data = RREG32_PCIE(smnCPM_CONTROL); 287 if (data & CPM_CONTROL__LCLK_DYN_GATE_ENABLE_MASK) 288 *flags |= AMD_CG_SUPPORT_BIF_MGCG; 289 290 /* AMD_CG_SUPPORT_BIF_LS */ 291 data = RREG32_PCIE(smnPCIE_CNTL2); 292 if (data & PCIE_CNTL2__SLV_MEM_LS_EN_MASK) 293 *flags |= AMD_CG_SUPPORT_BIF_LS; 294 } 295 296 static u32 nbio_v2_3_get_hdp_flush_req_offset(struct amdgpu_device *adev) 297 { 298 return SOC15_REG_OFFSET(NBIO, 0, mmBIF_BX_PF_GPU_HDP_FLUSH_REQ); 299 } 300 301 static u32 nbio_v2_3_get_hdp_flush_done_offset(struct amdgpu_device *adev) 302 { 303 return SOC15_REG_OFFSET(NBIO, 0, mmBIF_BX_PF_GPU_HDP_FLUSH_DONE); 304 } 305 306 static u32 nbio_v2_3_get_pcie_index_offset(struct amdgpu_device *adev) 307 { 308 return SOC15_REG_OFFSET(NBIO, 0, mmPCIE_INDEX2); 309 } 310 311 static u32 nbio_v2_3_get_pcie_data_offset(struct amdgpu_device *adev) 312 { 313 return SOC15_REG_OFFSET(NBIO, 0, mmPCIE_DATA2); 314 } 315 316 const struct nbio_hdp_flush_reg nbio_v2_3_hdp_flush_reg = { 317 .ref_and_mask_cp0 = BIF_BX_PF_GPU_HDP_FLUSH_DONE__CP0_MASK, 318 .ref_and_mask_cp1 = BIF_BX_PF_GPU_HDP_FLUSH_DONE__CP1_MASK, 319 .ref_and_mask_cp2 = BIF_BX_PF_GPU_HDP_FLUSH_DONE__CP2_MASK, 320 .ref_and_mask_cp3 = BIF_BX_PF_GPU_HDP_FLUSH_DONE__CP3_MASK, 321 .ref_and_mask_cp4 = BIF_BX_PF_GPU_HDP_FLUSH_DONE__CP4_MASK, 322 .ref_and_mask_cp5 = BIF_BX_PF_GPU_HDP_FLUSH_DONE__CP5_MASK, 323 .ref_and_mask_cp6 = BIF_BX_PF_GPU_HDP_FLUSH_DONE__CP6_MASK, 324 .ref_and_mask_cp7 = BIF_BX_PF_GPU_HDP_FLUSH_DONE__CP7_MASK, 325 .ref_and_mask_cp8 = BIF_BX_PF_GPU_HDP_FLUSH_DONE__CP8_MASK, 326 .ref_and_mask_cp9 = BIF_BX_PF_GPU_HDP_FLUSH_DONE__CP9_MASK, 327 .ref_and_mask_sdma0 = BIF_BX_PF_GPU_HDP_FLUSH_DONE__SDMA0_MASK, 328 .ref_and_mask_sdma1 = BIF_BX_PF_GPU_HDP_FLUSH_DONE__SDMA1_MASK, 329 }; 330 331 static void nbio_v2_3_init_registers(struct amdgpu_device *adev) 332 { 333 uint32_t def, data; 334 335 def = data = RREG32_PCIE(smnPCIE_CONFIG_CNTL); 336 data = REG_SET_FIELD(data, PCIE_CONFIG_CNTL, CI_SWUS_MAX_READ_REQUEST_SIZE_MODE, 1); 337 data = REG_SET_FIELD(data, PCIE_CONFIG_CNTL, CI_SWUS_MAX_READ_REQUEST_SIZE_PRIV, 1); 338 339 if (def != data) 340 WREG32_PCIE(smnPCIE_CONFIG_CNTL, data); 341 342 if (amdgpu_sriov_vf(adev)) 343 adev->rmmio_remap.reg_offset = SOC15_REG_OFFSET(NBIO, 0, 344 mmBIF_BX_DEV0_EPF0_VF0_HDP_MEM_COHERENCY_FLUSH_CNTL) << 2; 345 } 346 347 #define NAVI10_PCIE__LC_L0S_INACTIVITY_DEFAULT 0x00000000 // off by default, no gains over L1 348 #define NAVI10_PCIE__LC_L1_INACTIVITY_DEFAULT 0x0000000A // 1=1us, 9=1ms, 10=4ms 349 #define NAVI10_PCIE__LC_L1_INACTIVITY_TBT_DEFAULT 0x0000000E // 400ms 350 351 static void nbio_v2_3_enable_aspm(struct amdgpu_device *adev, 352 bool enable) 353 { 354 uint32_t def, data; 355 356 def = data = RREG32_PCIE(smnPCIE_LC_CNTL); 357 358 if (enable) { 359 /* Disable ASPM L0s/L1 first */ 360 data &= ~(PCIE_LC_CNTL__LC_L0S_INACTIVITY_MASK | PCIE_LC_CNTL__LC_L1_INACTIVITY_MASK); 361 362 data |= NAVI10_PCIE__LC_L0S_INACTIVITY_DEFAULT << PCIE_LC_CNTL__LC_L0S_INACTIVITY__SHIFT; 363 364 if (pci_is_thunderbolt_attached(adev->pdev)) 365 data |= NAVI10_PCIE__LC_L1_INACTIVITY_TBT_DEFAULT << PCIE_LC_CNTL__LC_L1_INACTIVITY__SHIFT; 366 else 367 data |= NAVI10_PCIE__LC_L1_INACTIVITY_DEFAULT << PCIE_LC_CNTL__LC_L1_INACTIVITY__SHIFT; 368 369 data &= ~PCIE_LC_CNTL__LC_PMI_TO_L1_DIS_MASK; 370 } else { 371 /* Disbale ASPM L1 */ 372 data &= ~PCIE_LC_CNTL__LC_L1_INACTIVITY_MASK; 373 /* Disable ASPM TxL0s */ 374 data &= ~PCIE_LC_CNTL__LC_L0S_INACTIVITY_MASK; 375 /* Disable ACPI L1 */ 376 data |= PCIE_LC_CNTL__LC_PMI_TO_L1_DIS_MASK; 377 } 378 379 if (def != data) 380 WREG32_PCIE(smnPCIE_LC_CNTL, data); 381 } 382 383 #ifdef CONFIG_PCIEASPM 384 static void nbio_v2_3_program_ltr(struct amdgpu_device *adev) 385 { 386 uint32_t def, data; 387 388 WREG32_PCIE(smnRCC_EP_DEV0_0_EP_PCIE_TX_LTR_CNTL, 0x75EB); 389 390 def = data = RREG32_SOC15(NBIO, 0, mmRCC_BIF_STRAP2); 391 data &= ~RCC_BIF_STRAP2__STRAP_LTR_IN_ASPML1_DIS_MASK; 392 if (def != data) 393 WREG32_SOC15(NBIO, 0, mmRCC_BIF_STRAP2, data); 394 395 def = data = RREG32_PCIE(smnRCC_EP_DEV0_0_EP_PCIE_TX_LTR_CNTL); 396 data &= ~EP_PCIE_TX_LTR_CNTL__LTR_PRIV_MSG_DIS_IN_PM_NON_D0_MASK; 397 if (def != data) 398 WREG32_PCIE(smnRCC_EP_DEV0_0_EP_PCIE_TX_LTR_CNTL, data); 399 400 def = data = RREG32_PCIE(smnBIF_CFG_DEV0_EPF0_DEVICE_CNTL2); 401 data |= BIF_CFG_DEV0_EPF0_DEVICE_CNTL2__LTR_EN_MASK; 402 if (def != data) 403 WREG32_PCIE(smnBIF_CFG_DEV0_EPF0_DEVICE_CNTL2, data); 404 } 405 #endif 406 407 static void nbio_v2_3_program_aspm(struct amdgpu_device *adev) 408 { 409 #ifdef CONFIG_PCIEASPM 410 uint32_t def, data; 411 412 def = data = RREG32_PCIE(smnPCIE_LC_CNTL); 413 data &= ~PCIE_LC_CNTL__LC_L1_INACTIVITY_MASK; 414 data &= ~PCIE_LC_CNTL__LC_L0S_INACTIVITY_MASK; 415 data |= PCIE_LC_CNTL__LC_PMI_TO_L1_DIS_MASK; 416 if (def != data) 417 WREG32_PCIE(smnPCIE_LC_CNTL, data); 418 419 def = data = RREG32_PCIE(smnPCIE_LC_CNTL7); 420 data |= PCIE_LC_CNTL7__LC_NBIF_ASPM_INPUT_EN_MASK; 421 if (def != data) 422 WREG32_PCIE(smnPCIE_LC_CNTL7, data); 423 424 def = data = RREG32_PCIE(smnNBIF_MGCG_CTRL_LCLK); 425 data |= NBIF_MGCG_CTRL_LCLK__NBIF_MGCG_REG_DIS_LCLK_MASK; 426 if (def != data) 427 WREG32_PCIE(smnNBIF_MGCG_CTRL_LCLK, data); 428 429 def = data = RREG32_PCIE(smnPCIE_LC_CNTL3); 430 data |= PCIE_LC_CNTL3__LC_DSC_DONT_ENTER_L23_AFTER_PME_ACK_MASK; 431 if (def != data) 432 WREG32_PCIE(smnPCIE_LC_CNTL3, data); 433 434 def = data = RREG32_SOC15(NBIO, 0, mmRCC_BIF_STRAP3); 435 data &= ~RCC_BIF_STRAP3__STRAP_VLINK_ASPM_IDLE_TIMER_MASK; 436 data &= ~RCC_BIF_STRAP3__STRAP_VLINK_PM_L1_ENTRY_TIMER_MASK; 437 if (def != data) 438 WREG32_SOC15(NBIO, 0, mmRCC_BIF_STRAP3, data); 439 440 def = data = RREG32_SOC15(NBIO, 0, mmRCC_BIF_STRAP5); 441 data &= ~RCC_BIF_STRAP5__STRAP_VLINK_LDN_ENTRY_TIMER_MASK; 442 if (def != data) 443 WREG32_SOC15(NBIO, 0, mmRCC_BIF_STRAP5, data); 444 445 def = data = RREG32_PCIE(smnBIF_CFG_DEV0_EPF0_DEVICE_CNTL2); 446 data &= ~BIF_CFG_DEV0_EPF0_DEVICE_CNTL2__LTR_EN_MASK; 447 if (def != data) 448 WREG32_PCIE(smnBIF_CFG_DEV0_EPF0_DEVICE_CNTL2, data); 449 450 WREG32_PCIE(smnBIF_CFG_DEV0_EPF0_PCIE_LTR_CAP, 0x10011001); 451 452 def = data = RREG32_PCIE(smnPSWUSP0_PCIE_LC_CNTL2); 453 data |= PSWUSP0_PCIE_LC_CNTL2__LC_ALLOW_PDWN_IN_L1_MASK | 454 PSWUSP0_PCIE_LC_CNTL2__LC_ALLOW_PDWN_IN_L23_MASK; 455 data &= ~PSWUSP0_PCIE_LC_CNTL2__LC_RCV_L0_TO_RCV_L0S_DIS_MASK; 456 if (def != data) 457 WREG32_PCIE(smnPSWUSP0_PCIE_LC_CNTL2, data); 458 459 def = data = RREG32_PCIE(smnPCIE_LC_CNTL6); 460 data |= PCIE_LC_CNTL6__LC_L1_POWERDOWN_MASK | 461 PCIE_LC_CNTL6__LC_RX_L0S_STANDBY_EN_MASK; 462 if (def != data) 463 WREG32_PCIE(smnPCIE_LC_CNTL6, data); 464 465 /* Don't bother about LTR if LTR is not enabled 466 * in the path */ 467 if (adev->pdev->ltr_path) 468 nbio_v2_3_program_ltr(adev); 469 470 def = data = RREG32_SOC15(NBIO, 0, mmRCC_BIF_STRAP3); 471 data |= 0x5DE0 << RCC_BIF_STRAP3__STRAP_VLINK_ASPM_IDLE_TIMER__SHIFT; 472 data |= 0x0010 << RCC_BIF_STRAP3__STRAP_VLINK_PM_L1_ENTRY_TIMER__SHIFT; 473 if (def != data) 474 WREG32_SOC15(NBIO, 0, mmRCC_BIF_STRAP3, data); 475 476 def = data = RREG32_SOC15(NBIO, 0, mmRCC_BIF_STRAP5); 477 data |= 0x0010 << RCC_BIF_STRAP5__STRAP_VLINK_LDN_ENTRY_TIMER__SHIFT; 478 if (def != data) 479 WREG32_SOC15(NBIO, 0, mmRCC_BIF_STRAP5, data); 480 481 def = data = RREG32_PCIE(smnPCIE_LC_CNTL); 482 data |= NAVI10_PCIE__LC_L0S_INACTIVITY_DEFAULT << PCIE_LC_CNTL__LC_L0S_INACTIVITY__SHIFT; 483 if (pci_is_thunderbolt_attached(adev->pdev)) 484 data |= NAVI10_PCIE__LC_L1_INACTIVITY_TBT_DEFAULT << PCIE_LC_CNTL__LC_L1_INACTIVITY__SHIFT; 485 else 486 data |= NAVI10_PCIE__LC_L1_INACTIVITY_DEFAULT << PCIE_LC_CNTL__LC_L1_INACTIVITY__SHIFT; 487 data &= ~PCIE_LC_CNTL__LC_PMI_TO_L1_DIS_MASK; 488 if (def != data) 489 WREG32_PCIE(smnPCIE_LC_CNTL, data); 490 491 def = data = RREG32_PCIE(smnPCIE_LC_CNTL3); 492 data &= ~PCIE_LC_CNTL3__LC_DSC_DONT_ENTER_L23_AFTER_PME_ACK_MASK; 493 if (def != data) 494 WREG32_PCIE(smnPCIE_LC_CNTL3, data); 495 #endif 496 } 497 498 static void nbio_v2_3_apply_lc_spc_mode_wa(struct amdgpu_device *adev) 499 { 500 uint32_t reg_data = 0; 501 uint32_t link_width = 0; 502 503 if (!((adev->asic_type >= CHIP_NAVI10) && 504 (adev->asic_type <= CHIP_NAVI12))) 505 return; 506 507 reg_data = RREG32_PCIE(smnPCIE_LC_LINK_WIDTH_CNTL); 508 link_width = (reg_data & PCIE_LC_LINK_WIDTH_CNTL__LC_LINK_WIDTH_RD_MASK) 509 >> PCIE_LC_LINK_WIDTH_CNTL__LC_LINK_WIDTH_RD__SHIFT; 510 511 /* 512 * Program PCIE_LC_CNTL6.LC_SPC_MODE_8GT to 0x2 (4 symbols per clock data) 513 * if link_width is 0x3 (x4) 514 */ 515 if (0x3 == link_width) { 516 reg_data = RREG32_PCIE(smnPCIE_LC_CNTL6); 517 reg_data &= ~PCIE_LC_CNTL6__LC_SPC_MODE_8GT_MASK; 518 reg_data |= (0x2 << PCIE_LC_CNTL6__LC_SPC_MODE_8GT__SHIFT); 519 WREG32_PCIE(smnPCIE_LC_CNTL6, reg_data); 520 } 521 } 522 523 static void nbio_v2_3_apply_l1_link_width_reconfig_wa(struct amdgpu_device *adev) 524 { 525 uint32_t reg_data = 0; 526 527 if (adev->asic_type != CHIP_NAVI10) 528 return; 529 530 reg_data = RREG32_PCIE(smnPCIE_LC_LINK_WIDTH_CNTL); 531 reg_data |= PCIE_LC_LINK_WIDTH_CNTL__LC_L1_RECONFIG_EN_MASK; 532 WREG32_PCIE(smnPCIE_LC_LINK_WIDTH_CNTL, reg_data); 533 } 534 535 static void nbio_v2_3_clear_doorbell_interrupt(struct amdgpu_device *adev) 536 { 537 uint32_t reg, reg_data; 538 539 if (adev->ip_versions[NBIO_HWIP][0] != IP_VERSION(3, 3, 0)) 540 return; 541 542 reg = RREG32_SOC15(NBIO, 0, mmBIF_RB_CNTL); 543 544 /* Clear Interrupt Status 545 */ 546 if ((reg & BIF_RB_CNTL__RB_ENABLE_MASK) == 0) { 547 reg = RREG32_SOC15(NBIO, 0, mmBIF_DOORBELL_INT_CNTL); 548 if (reg & BIF_DOORBELL_INT_CNTL__DOORBELL_INTERRUPT_STATUS_MASK) { 549 reg_data = 1 << BIF_DOORBELL_INT_CNTL__DOORBELL_INTERRUPT_CLEAR__SHIFT; 550 WREG32_SOC15(NBIO, 0, mmBIF_DOORBELL_INT_CNTL, reg_data); 551 } 552 } 553 } 554 555 const struct amdgpu_nbio_funcs nbio_v2_3_funcs = { 556 .get_hdp_flush_req_offset = nbio_v2_3_get_hdp_flush_req_offset, 557 .get_hdp_flush_done_offset = nbio_v2_3_get_hdp_flush_done_offset, 558 .get_pcie_index_offset = nbio_v2_3_get_pcie_index_offset, 559 .get_pcie_data_offset = nbio_v2_3_get_pcie_data_offset, 560 .get_rev_id = nbio_v2_3_get_rev_id, 561 .mc_access_enable = nbio_v2_3_mc_access_enable, 562 .get_memsize = nbio_v2_3_get_memsize, 563 .sdma_doorbell_range = nbio_v2_3_sdma_doorbell_range, 564 .vcn_doorbell_range = nbio_v2_3_vcn_doorbell_range, 565 .enable_doorbell_aperture = nbio_v2_3_enable_doorbell_aperture, 566 .enable_doorbell_selfring_aperture = nbio_v2_3_enable_doorbell_selfring_aperture, 567 .ih_doorbell_range = nbio_v2_3_ih_doorbell_range, 568 .update_medium_grain_clock_gating = nbio_v2_3_update_medium_grain_clock_gating, 569 .update_medium_grain_light_sleep = nbio_v2_3_update_medium_grain_light_sleep, 570 .get_clockgating_state = nbio_v2_3_get_clockgating_state, 571 .ih_control = nbio_v2_3_ih_control, 572 .init_registers = nbio_v2_3_init_registers, 573 .remap_hdp_registers = nbio_v2_3_remap_hdp_registers, 574 .enable_aspm = nbio_v2_3_enable_aspm, 575 .program_aspm = nbio_v2_3_program_aspm, 576 .apply_lc_spc_mode_wa = nbio_v2_3_apply_lc_spc_mode_wa, 577 .apply_l1_link_width_reconfig_wa = nbio_v2_3_apply_l1_link_width_reconfig_wa, 578 .clear_doorbell_interrupt = nbio_v2_3_clear_doorbell_interrupt, 579 }; 580