1/* 2 * Copyright 2018 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_4.h" 26#include "amdgpu_ras.h" 27 28#include "nbio/nbio_7_4_offset.h" 29#include "nbio/nbio_7_4_sh_mask.h" 30#include "nbio/nbio_7_4_0_smn.h" 31#include "ivsrcid/nbio/irqsrcs_nbif_7_4.h" 32#include <uapi/linux/kfd_ioctl.h> 33 34#define smnPCIE_LC_CNTL 0x11140280 35#define smnPCIE_LC_CNTL3 0x111402d4 36#define smnPCIE_LC_CNTL6 0x111402ec 37#define smnPCIE_LC_CNTL7 0x111402f0 38#define smnNBIF_MGCG_CTRL_LCLK 0x1013a21c 39#define smnRCC_BIF_STRAP3 0x1012348c 40#define RCC_BIF_STRAP3__STRAP_VLINK_ASPM_IDLE_TIMER_MASK 0x0000FFFFL 41#define RCC_BIF_STRAP3__STRAP_VLINK_PM_L1_ENTRY_TIMER_MASK 0xFFFF0000L 42#define smnRCC_BIF_STRAP5 0x10123494 43#define RCC_BIF_STRAP5__STRAP_VLINK_LDN_ENTRY_TIMER_MASK 0x0000FFFFL 44#define smnBIF_CFG_DEV0_EPF0_DEVICE_CNTL2 0x1014008c 45#define BIF_CFG_DEV0_EPF0_DEVICE_CNTL2__LTR_EN_MASK 0x0400L 46#define smnBIF_CFG_DEV0_EPF0_PCIE_LTR_CAP 0x10140324 47#define smnPSWUSP0_PCIE_LC_CNTL2 0x111402c4 48#define smnRCC_EP_DEV0_0_EP_PCIE_TX_LTR_CNTL 0x10123538 49#define smnRCC_BIF_STRAP2 0x10123488 50#define RCC_BIF_STRAP2__STRAP_LTR_IN_ASPML1_DIS_MASK 0x00004000L 51#define RCC_BIF_STRAP3__STRAP_VLINK_ASPM_IDLE_TIMER__SHIFT 0x0 52#define RCC_BIF_STRAP3__STRAP_VLINK_PM_L1_ENTRY_TIMER__SHIFT 0x10 53#define RCC_BIF_STRAP5__STRAP_VLINK_LDN_ENTRY_TIMER__SHIFT 0x0 54 55/* 56 * These are nbio v7_4_1 registers mask. Temporarily define these here since 57 * nbio v7_4_1 header is incomplete. 58 */ 59#define GPU_HDP_FLUSH_DONE__RSVD_ENG0_MASK 0x00001000L /* Don't use. Firmware uses this bit internally */ 60#define GPU_HDP_FLUSH_DONE__RSVD_ENG1_MASK 0x00002000L 61#define GPU_HDP_FLUSH_DONE__RSVD_ENG2_MASK 0x00004000L 62#define GPU_HDP_FLUSH_DONE__RSVD_ENG3_MASK 0x00008000L 63#define GPU_HDP_FLUSH_DONE__RSVD_ENG4_MASK 0x00010000L 64#define GPU_HDP_FLUSH_DONE__RSVD_ENG5_MASK 0x00020000L 65#define GPU_HDP_FLUSH_DONE__RSVD_ENG6_MASK 0x00040000L 66#define GPU_HDP_FLUSH_DONE__RSVD_ENG7_MASK 0x00080000L 67#define GPU_HDP_FLUSH_DONE__RSVD_ENG8_MASK 0x00100000L 68 69#define mmBIF_MMSCH1_DOORBELL_RANGE 0x01dc 70#define mmBIF_MMSCH1_DOORBELL_RANGE_BASE_IDX 2 71//BIF_MMSCH1_DOORBELL_RANGE 72#define BIF_MMSCH1_DOORBELL_RANGE__OFFSET__SHIFT 0x2 73#define BIF_MMSCH1_DOORBELL_RANGE__SIZE__SHIFT 0x10 74#define BIF_MMSCH1_DOORBELL_RANGE__OFFSET_MASK 0x00000FFCL 75#define BIF_MMSCH1_DOORBELL_RANGE__SIZE_MASK 0x001F0000L 76 77#define BIF_MMSCH1_DOORBELL_RANGE__OFFSET_MASK 0x00000FFCL 78#define BIF_MMSCH1_DOORBELL_RANGE__SIZE_MASK 0x001F0000L 79 80#define mmBIF_MMSCH1_DOORBELL_RANGE_ALDE 0x01d8 81#define mmBIF_MMSCH1_DOORBELL_RANGE_ALDE_BASE_IDX 2 82//BIF_MMSCH1_DOORBELL_ALDE_RANGE 83#define BIF_MMSCH1_DOORBELL_RANGE_ALDE__OFFSET__SHIFT 0x2 84#define BIF_MMSCH1_DOORBELL_RANGE_ALDE__SIZE__SHIFT 0x10 85#define BIF_MMSCH1_DOORBELL_RANGE_ALDE__OFFSET_MASK 0x00000FFCL 86#define BIF_MMSCH1_DOORBELL_RANGE_ALDE__SIZE_MASK 0x001F0000L 87 88#define mmRCC_DEV0_EPF0_STRAP0_ALDE 0x0015 89#define mmRCC_DEV0_EPF0_STRAP0_ALDE_BASE_IDX 2 90 91#define mmBIF_DOORBELL_INT_CNTL_ALDE 0x00fe 92#define mmBIF_DOORBELL_INT_CNTL_ALDE_BASE_IDX 2 93#define BIF_DOORBELL_INT_CNTL_ALDE__DOORBELL_INTERRUPT_DISABLE__SHIFT 0x18 94#define BIF_DOORBELL_INT_CNTL_ALDE__DOORBELL_INTERRUPT_DISABLE_MASK 0x01000000L 95 96#define mmBIF_INTR_CNTL_ALDE 0x0101 97#define mmBIF_INTR_CNTL_ALDE_BASE_IDX 2 98 99static void nbio_v7_4_query_ras_error_count(struct amdgpu_device *adev, 100 void *ras_error_status); 101 102static void nbio_v7_4_remap_hdp_registers(struct amdgpu_device *adev) 103{ 104 WREG32_SOC15(NBIO, 0, mmREMAP_HDP_MEM_FLUSH_CNTL, 105 adev->rmmio_remap.reg_offset + KFD_MMIO_REMAP_HDP_MEM_FLUSH_CNTL); 106 WREG32_SOC15(NBIO, 0, mmREMAP_HDP_REG_FLUSH_CNTL, 107 adev->rmmio_remap.reg_offset + KFD_MMIO_REMAP_HDP_REG_FLUSH_CNTL); 108} 109 110static u32 nbio_v7_4_get_rev_id(struct amdgpu_device *adev) 111{ 112 u32 tmp; 113 114 if (adev->asic_type == CHIP_ALDEBARAN) 115 tmp = RREG32_SOC15(NBIO, 0, mmRCC_DEV0_EPF0_STRAP0_ALDE); 116 else 117 tmp = RREG32_SOC15(NBIO, 0, mmRCC_DEV0_EPF0_STRAP0); 118 119 tmp &= RCC_DEV0_EPF0_STRAP0__STRAP_ATI_REV_ID_DEV0_F0_MASK; 120 tmp >>= RCC_DEV0_EPF0_STRAP0__STRAP_ATI_REV_ID_DEV0_F0__SHIFT; 121 122 return tmp; 123} 124 125static void nbio_v7_4_mc_access_enable(struct amdgpu_device *adev, bool enable) 126{ 127 if (enable) 128 WREG32_SOC15(NBIO, 0, mmBIF_FB_EN, 129 BIF_FB_EN__FB_READ_EN_MASK | BIF_FB_EN__FB_WRITE_EN_MASK); 130 else 131 WREG32_SOC15(NBIO, 0, mmBIF_FB_EN, 0); 132} 133 134static u32 nbio_v7_4_get_memsize(struct amdgpu_device *adev) 135{ 136 return RREG32_SOC15(NBIO, 0, mmRCC_CONFIG_MEMSIZE); 137} 138 139static void nbio_v7_4_sdma_doorbell_range(struct amdgpu_device *adev, int instance, 140 bool use_doorbell, int doorbell_index, int doorbell_size) 141{ 142 u32 reg, doorbell_range; 143 144 if (instance < 2) { 145 reg = instance + 146 SOC15_REG_OFFSET(NBIO, 0, mmBIF_SDMA0_DOORBELL_RANGE); 147 } else { 148 /* 149 * These registers address of SDMA2~7 is not consecutive 150 * from SDMA0~1. Need plus 4 dwords offset. 151 * 152 * BIF_SDMA0_DOORBELL_RANGE: 0x3bc0 153 * BIF_SDMA1_DOORBELL_RANGE: 0x3bc4 154 * BIF_SDMA2_DOORBELL_RANGE: 0x3bd8 155+ * BIF_SDMA4_DOORBELL_RANGE: 156+ * ARCTURUS: 0x3be0 157+ * ALDEBARAN: 0x3be4 158 */ 159 if (adev->asic_type == CHIP_ALDEBARAN && instance == 4) 160 reg = instance + 0x4 + 0x1 + 161 SOC15_REG_OFFSET(NBIO, 0, 162 mmBIF_SDMA0_DOORBELL_RANGE); 163 else 164 reg = instance + 0x4 + 165 SOC15_REG_OFFSET(NBIO, 0, 166 mmBIF_SDMA0_DOORBELL_RANGE); 167 } 168 169 doorbell_range = RREG32(reg); 170 171 if (use_doorbell) { 172 doorbell_range = REG_SET_FIELD(doorbell_range, BIF_SDMA0_DOORBELL_RANGE, OFFSET, doorbell_index); 173 doorbell_range = REG_SET_FIELD(doorbell_range, BIF_SDMA0_DOORBELL_RANGE, SIZE, doorbell_size); 174 } else 175 doorbell_range = REG_SET_FIELD(doorbell_range, BIF_SDMA0_DOORBELL_RANGE, SIZE, 0); 176 177 WREG32(reg, doorbell_range); 178} 179 180static void nbio_v7_4_vcn_doorbell_range(struct amdgpu_device *adev, bool use_doorbell, 181 int doorbell_index, int instance) 182{ 183 u32 reg; 184 u32 doorbell_range; 185 186 if (instance) { 187 if (adev->asic_type == CHIP_ALDEBARAN) 188 reg = SOC15_REG_OFFSET(NBIO, 0, mmBIF_MMSCH1_DOORBELL_RANGE_ALDE); 189 else 190 reg = SOC15_REG_OFFSET(NBIO, 0, mmBIF_MMSCH1_DOORBELL_RANGE); 191 } else 192 reg = SOC15_REG_OFFSET(NBIO, 0, mmBIF_MMSCH0_DOORBELL_RANGE); 193 194 doorbell_range = RREG32(reg); 195 196 if (use_doorbell) { 197 doorbell_range = REG_SET_FIELD(doorbell_range, 198 BIF_MMSCH0_DOORBELL_RANGE, OFFSET, 199 doorbell_index); 200 doorbell_range = REG_SET_FIELD(doorbell_range, 201 BIF_MMSCH0_DOORBELL_RANGE, SIZE, 8); 202 } else 203 doorbell_range = REG_SET_FIELD(doorbell_range, 204 BIF_MMSCH0_DOORBELL_RANGE, SIZE, 0); 205 206 WREG32(reg, doorbell_range); 207} 208 209static void nbio_v7_4_enable_doorbell_aperture(struct amdgpu_device *adev, 210 bool enable) 211{ 212 WREG32_FIELD15(NBIO, 0, RCC_DOORBELL_APER_EN, BIF_DOORBELL_APER_EN, enable ? 1 : 0); 213} 214 215static void nbio_v7_4_enable_doorbell_selfring_aperture(struct amdgpu_device *adev, 216 bool enable) 217{ 218 u32 tmp = 0; 219 220 if (enable) { 221 tmp = REG_SET_FIELD(tmp, DOORBELL_SELFRING_GPA_APER_CNTL, DOORBELL_SELFRING_GPA_APER_EN, 1) | 222 REG_SET_FIELD(tmp, DOORBELL_SELFRING_GPA_APER_CNTL, DOORBELL_SELFRING_GPA_APER_MODE, 1) | 223 REG_SET_FIELD(tmp, DOORBELL_SELFRING_GPA_APER_CNTL, DOORBELL_SELFRING_GPA_APER_SIZE, 0); 224 225 WREG32_SOC15(NBIO, 0, mmDOORBELL_SELFRING_GPA_APER_BASE_LOW, 226 lower_32_bits(adev->doorbell.base)); 227 WREG32_SOC15(NBIO, 0, mmDOORBELL_SELFRING_GPA_APER_BASE_HIGH, 228 upper_32_bits(adev->doorbell.base)); 229 } 230 231 WREG32_SOC15(NBIO, 0, mmDOORBELL_SELFRING_GPA_APER_CNTL, tmp); 232} 233 234static void nbio_v7_4_ih_doorbell_range(struct amdgpu_device *adev, 235 bool use_doorbell, int doorbell_index) 236{ 237 u32 ih_doorbell_range = RREG32_SOC15(NBIO, 0 , mmBIF_IH_DOORBELL_RANGE); 238 239 if (use_doorbell) { 240 ih_doorbell_range = REG_SET_FIELD(ih_doorbell_range, BIF_IH_DOORBELL_RANGE, OFFSET, doorbell_index); 241 ih_doorbell_range = REG_SET_FIELD(ih_doorbell_range, BIF_IH_DOORBELL_RANGE, SIZE, 8); 242 } else 243 ih_doorbell_range = REG_SET_FIELD(ih_doorbell_range, BIF_IH_DOORBELL_RANGE, SIZE, 0); 244 245 WREG32_SOC15(NBIO, 0, mmBIF_IH_DOORBELL_RANGE, ih_doorbell_range); 246} 247 248 249static void nbio_v7_4_update_medium_grain_clock_gating(struct amdgpu_device *adev, 250 bool enable) 251{ 252 //TODO: Add support for v7.4 253} 254 255static void nbio_v7_4_update_medium_grain_light_sleep(struct amdgpu_device *adev, 256 bool enable) 257{ 258 uint32_t def, data; 259 260 def = data = RREG32_PCIE(smnPCIE_CNTL2); 261 if (enable && (adev->cg_flags & AMD_CG_SUPPORT_BIF_LS)) { 262 data |= (PCIE_CNTL2__SLV_MEM_LS_EN_MASK | 263 PCIE_CNTL2__MST_MEM_LS_EN_MASK | 264 PCIE_CNTL2__REPLAY_MEM_LS_EN_MASK); 265 } else { 266 data &= ~(PCIE_CNTL2__SLV_MEM_LS_EN_MASK | 267 PCIE_CNTL2__MST_MEM_LS_EN_MASK | 268 PCIE_CNTL2__REPLAY_MEM_LS_EN_MASK); 269 } 270 271 if (def != data) 272 WREG32_PCIE(smnPCIE_CNTL2, data); 273} 274 275static void nbio_v7_4_get_clockgating_state(struct amdgpu_device *adev, 276 u64 *flags) 277{ 278 int data; 279 280 /* AMD_CG_SUPPORT_BIF_MGCG */ 281 data = RREG32_PCIE(smnCPM_CONTROL); 282 if (data & CPM_CONTROL__LCLK_DYN_GATE_ENABLE_MASK) 283 *flags |= AMD_CG_SUPPORT_BIF_MGCG; 284 285 /* AMD_CG_SUPPORT_BIF_LS */ 286 data = RREG32_PCIE(smnPCIE_CNTL2); 287 if (data & PCIE_CNTL2__SLV_MEM_LS_EN_MASK) 288 *flags |= AMD_CG_SUPPORT_BIF_LS; 289} 290 291static void nbio_v7_4_ih_control(struct amdgpu_device *adev) 292{ 293 u32 interrupt_cntl; 294 295 /* setup interrupt control */ 296 WREG32_SOC15(NBIO, 0, mmINTERRUPT_CNTL2, adev->dummy_page_addr >> 8); 297 interrupt_cntl = RREG32_SOC15(NBIO, 0, mmINTERRUPT_CNTL); 298 /* INTERRUPT_CNTL__IH_DUMMY_RD_OVERRIDE_MASK=0 - dummy read disabled with msi, enabled without msi 299 * INTERRUPT_CNTL__IH_DUMMY_RD_OVERRIDE_MASK=1 - dummy read controlled by IH_DUMMY_RD_EN 300 */ 301 interrupt_cntl = REG_SET_FIELD(interrupt_cntl, INTERRUPT_CNTL, IH_DUMMY_RD_OVERRIDE, 0); 302 /* INTERRUPT_CNTL__IH_REQ_NONSNOOP_EN_MASK=1 if ring is in non-cacheable memory, e.g., vram */ 303 interrupt_cntl = REG_SET_FIELD(interrupt_cntl, INTERRUPT_CNTL, IH_REQ_NONSNOOP_EN, 0); 304 WREG32_SOC15(NBIO, 0, mmINTERRUPT_CNTL, interrupt_cntl); 305} 306 307static u32 nbio_v7_4_get_hdp_flush_req_offset(struct amdgpu_device *adev) 308{ 309 return SOC15_REG_OFFSET(NBIO, 0, mmGPU_HDP_FLUSH_REQ); 310} 311 312static u32 nbio_v7_4_get_hdp_flush_done_offset(struct amdgpu_device *adev) 313{ 314 return SOC15_REG_OFFSET(NBIO, 0, mmGPU_HDP_FLUSH_DONE); 315} 316 317static u32 nbio_v7_4_get_pcie_index_offset(struct amdgpu_device *adev) 318{ 319 return SOC15_REG_OFFSET(NBIO, 0, mmPCIE_INDEX2); 320} 321 322static u32 nbio_v7_4_get_pcie_data_offset(struct amdgpu_device *adev) 323{ 324 return SOC15_REG_OFFSET(NBIO, 0, mmPCIE_DATA2); 325} 326 327const struct nbio_hdp_flush_reg nbio_v7_4_hdp_flush_reg = { 328 .ref_and_mask_cp0 = GPU_HDP_FLUSH_DONE__CP0_MASK, 329 .ref_and_mask_cp1 = GPU_HDP_FLUSH_DONE__CP1_MASK, 330 .ref_and_mask_cp2 = GPU_HDP_FLUSH_DONE__CP2_MASK, 331 .ref_and_mask_cp3 = GPU_HDP_FLUSH_DONE__CP3_MASK, 332 .ref_and_mask_cp4 = GPU_HDP_FLUSH_DONE__CP4_MASK, 333 .ref_and_mask_cp5 = GPU_HDP_FLUSH_DONE__CP5_MASK, 334 .ref_and_mask_cp6 = GPU_HDP_FLUSH_DONE__CP6_MASK, 335 .ref_and_mask_cp7 = GPU_HDP_FLUSH_DONE__CP7_MASK, 336 .ref_and_mask_cp8 = GPU_HDP_FLUSH_DONE__CP8_MASK, 337 .ref_and_mask_cp9 = GPU_HDP_FLUSH_DONE__CP9_MASK, 338 .ref_and_mask_sdma0 = GPU_HDP_FLUSH_DONE__SDMA0_MASK, 339 .ref_and_mask_sdma1 = GPU_HDP_FLUSH_DONE__SDMA1_MASK, 340}; 341 342static void nbio_v7_4_init_registers(struct amdgpu_device *adev) 343{ 344 uint32_t baco_cntl; 345 346 if (amdgpu_sriov_vf(adev)) 347 adev->rmmio_remap.reg_offset = SOC15_REG_OFFSET(NBIO, 0, 348 mmBIF_BX_DEV0_EPF0_VF0_HDP_MEM_COHERENCY_FLUSH_CNTL) << 2; 349 350 if (amdgpu_ip_version(adev, NBIO_HWIP, 0) == IP_VERSION(7, 4, 4) && 351 !amdgpu_sriov_vf(adev)) { 352 baco_cntl = RREG32_SOC15(NBIO, 0, mmBACO_CNTL); 353 if (baco_cntl & 354 (BACO_CNTL__BACO_DUMMY_EN_MASK | BACO_CNTL__BACO_EN_MASK)) { 355 baco_cntl &= ~(BACO_CNTL__BACO_DUMMY_EN_MASK | 356 BACO_CNTL__BACO_EN_MASK); 357 dev_dbg(adev->dev, "Unsetting baco dummy mode %x", 358 baco_cntl); 359 WREG32_SOC15(NBIO, 0, mmBACO_CNTL, baco_cntl); 360 } 361 } 362} 363 364static void nbio_v7_4_handle_ras_controller_intr_no_bifring(struct amdgpu_device *adev) 365{ 366 uint32_t bif_doorbell_intr_cntl; 367 struct ras_manager *obj = amdgpu_ras_find_obj(adev, adev->nbio.ras_if); 368 struct ras_err_data err_data; 369 struct amdgpu_ras *ras = amdgpu_ras_get_context(adev); 370 371 if (amdgpu_ras_error_data_init(&err_data)) 372 return; 373 374 if (adev->asic_type == CHIP_ALDEBARAN) 375 bif_doorbell_intr_cntl = RREG32_SOC15(NBIO, 0, mmBIF_DOORBELL_INT_CNTL_ALDE); 376 else 377 bif_doorbell_intr_cntl = RREG32_SOC15(NBIO, 0, mmBIF_DOORBELL_INT_CNTL); 378 379 if (REG_GET_FIELD(bif_doorbell_intr_cntl, 380 BIF_DOORBELL_INT_CNTL, RAS_CNTLR_INTERRUPT_STATUS)) { 381 /* driver has to clear the interrupt status when bif ring is disabled */ 382 bif_doorbell_intr_cntl = REG_SET_FIELD(bif_doorbell_intr_cntl, 383 BIF_DOORBELL_INT_CNTL, 384 RAS_CNTLR_INTERRUPT_CLEAR, 1); 385 if (adev->asic_type == CHIP_ALDEBARAN) 386 WREG32_SOC15(NBIO, 0, mmBIF_DOORBELL_INT_CNTL_ALDE, bif_doorbell_intr_cntl); 387 else 388 WREG32_SOC15(NBIO, 0, mmBIF_DOORBELL_INT_CNTL, bif_doorbell_intr_cntl); 389 390 if (!ras->disable_ras_err_cnt_harvest) { 391 /* 392 * clear error status after ras_controller_intr 393 * according to hw team and count ue number 394 * for query 395 */ 396 nbio_v7_4_query_ras_error_count(adev, &err_data); 397 398 /* logging on error cnt and printing for awareness */ 399 obj->err_data.ue_count += err_data.ue_count; 400 obj->err_data.ce_count += err_data.ce_count; 401 402 if (err_data.ce_count) 403 dev_info(adev->dev, "%ld correctable hardware " 404 "errors detected in %s block\n", 405 obj->err_data.ce_count, 406 get_ras_block_str(adev->nbio.ras_if)); 407 408 if (err_data.ue_count) 409 dev_info(adev->dev, "%ld uncorrectable hardware " 410 "errors detected in %s block\n", 411 obj->err_data.ue_count, 412 get_ras_block_str(adev->nbio.ras_if)); 413 } 414 415 dev_info(adev->dev, "RAS controller interrupt triggered " 416 "by NBIF error\n"); 417 418 /* ras_controller_int is dedicated for nbif ras error, 419 * not the global interrupt for sync flood 420 */ 421 amdgpu_ras_reset_gpu(adev); 422 } 423 424 amdgpu_ras_error_data_fini(&err_data); 425} 426 427static void nbio_v7_4_handle_ras_err_event_athub_intr_no_bifring(struct amdgpu_device *adev) 428{ 429 uint32_t bif_doorbell_intr_cntl; 430 431 if (adev->asic_type == CHIP_ALDEBARAN) 432 bif_doorbell_intr_cntl = RREG32_SOC15(NBIO, 0, mmBIF_DOORBELL_INT_CNTL_ALDE); 433 else 434 bif_doorbell_intr_cntl = RREG32_SOC15(NBIO, 0, mmBIF_DOORBELL_INT_CNTL); 435 436 if (REG_GET_FIELD(bif_doorbell_intr_cntl, 437 BIF_DOORBELL_INT_CNTL, RAS_ATHUB_ERR_EVENT_INTERRUPT_STATUS)) { 438 /* driver has to clear the interrupt status when bif ring is disabled */ 439 bif_doorbell_intr_cntl = REG_SET_FIELD(bif_doorbell_intr_cntl, 440 BIF_DOORBELL_INT_CNTL, 441 RAS_ATHUB_ERR_EVENT_INTERRUPT_CLEAR, 1); 442 443 if (adev->asic_type == CHIP_ALDEBARAN) 444 WREG32_SOC15(NBIO, 0, mmBIF_DOORBELL_INT_CNTL_ALDE, bif_doorbell_intr_cntl); 445 else 446 WREG32_SOC15(NBIO, 0, mmBIF_DOORBELL_INT_CNTL, bif_doorbell_intr_cntl); 447 448 amdgpu_ras_global_ras_isr(adev); 449 } 450} 451 452 453static int nbio_v7_4_set_ras_controller_irq_state(struct amdgpu_device *adev, 454 struct amdgpu_irq_src *src, 455 unsigned type, 456 enum amdgpu_interrupt_state state) 457{ 458 /* The ras_controller_irq enablement should be done in psp bl when it 459 * tries to enable ras feature. Driver only need to set the correct interrupt 460 * vector for bare-metal and sriov use case respectively 461 */ 462 uint32_t bif_intr_cntl; 463 464 if (adev->asic_type == CHIP_ALDEBARAN) 465 bif_intr_cntl = RREG32_SOC15(NBIO, 0, mmBIF_INTR_CNTL_ALDE); 466 else 467 bif_intr_cntl = RREG32_SOC15(NBIO, 0, mmBIF_INTR_CNTL); 468 469 if (state == AMDGPU_IRQ_STATE_ENABLE) { 470 /* set interrupt vector select bit to 0 to select 471 * vetcor 1 for bare metal case */ 472 bif_intr_cntl = REG_SET_FIELD(bif_intr_cntl, 473 BIF_INTR_CNTL, 474 RAS_INTR_VEC_SEL, 0); 475 476 if (adev->asic_type == CHIP_ALDEBARAN) 477 WREG32_SOC15(NBIO, 0, mmBIF_INTR_CNTL_ALDE, bif_intr_cntl); 478 else 479 WREG32_SOC15(NBIO, 0, mmBIF_INTR_CNTL, bif_intr_cntl); 480 481 } 482 483 return 0; 484} 485 486static int nbio_v7_4_process_ras_controller_irq(struct amdgpu_device *adev, 487 struct amdgpu_irq_src *source, 488 struct amdgpu_iv_entry *entry) 489{ 490 /* By design, the ih cookie for ras_controller_irq should be written 491 * to BIFring instead of general iv ring. However, due to known bif ring 492 * hw bug, it has to be disabled. There is no chance the process function 493 * will be involked. Just left it as a dummy one. 494 */ 495 return 0; 496} 497 498static int nbio_v7_4_set_ras_err_event_athub_irq_state(struct amdgpu_device *adev, 499 struct amdgpu_irq_src *src, 500 unsigned type, 501 enum amdgpu_interrupt_state state) 502{ 503 /* The ras_controller_irq enablement should be done in psp bl when it 504 * tries to enable ras feature. Driver only need to set the correct interrupt 505 * vector for bare-metal and sriov use case respectively 506 */ 507 uint32_t bif_intr_cntl; 508 509 if (adev->asic_type == CHIP_ALDEBARAN) 510 bif_intr_cntl = RREG32_SOC15(NBIO, 0, mmBIF_INTR_CNTL_ALDE); 511 else 512 bif_intr_cntl = RREG32_SOC15(NBIO, 0, mmBIF_INTR_CNTL); 513 514 if (state == AMDGPU_IRQ_STATE_ENABLE) { 515 /* set interrupt vector select bit to 0 to select 516 * vetcor 1 for bare metal case */ 517 bif_intr_cntl = REG_SET_FIELD(bif_intr_cntl, 518 BIF_INTR_CNTL, 519 RAS_INTR_VEC_SEL, 0); 520 521 if (adev->asic_type == CHIP_ALDEBARAN) 522 WREG32_SOC15(NBIO, 0, mmBIF_INTR_CNTL_ALDE, bif_intr_cntl); 523 else 524 WREG32_SOC15(NBIO, 0, mmBIF_INTR_CNTL, bif_intr_cntl); 525 } 526 527 return 0; 528} 529 530static int nbio_v7_4_process_err_event_athub_irq(struct amdgpu_device *adev, 531 struct amdgpu_irq_src *source, 532 struct amdgpu_iv_entry *entry) 533{ 534 /* By design, the ih cookie for err_event_athub_irq should be written 535 * to BIFring instead of general iv ring. However, due to known bif ring 536 * hw bug, it has to be disabled. There is no chance the process function 537 * will be involked. Just left it as a dummy one. 538 */ 539 return 0; 540} 541 542static const struct amdgpu_irq_src_funcs nbio_v7_4_ras_controller_irq_funcs = { 543 .set = nbio_v7_4_set_ras_controller_irq_state, 544 .process = nbio_v7_4_process_ras_controller_irq, 545}; 546 547static const struct amdgpu_irq_src_funcs nbio_v7_4_ras_err_event_athub_irq_funcs = { 548 .set = nbio_v7_4_set_ras_err_event_athub_irq_state, 549 .process = nbio_v7_4_process_err_event_athub_irq, 550}; 551 552static int nbio_v7_4_init_ras_controller_interrupt (struct amdgpu_device *adev) 553{ 554 int r; 555 556 /* init the irq funcs */ 557 adev->nbio.ras_controller_irq.funcs = 558 &nbio_v7_4_ras_controller_irq_funcs; 559 adev->nbio.ras_controller_irq.num_types = 1; 560 561 /* register ras controller interrupt */ 562 r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_BIF, 563 NBIF_7_4__SRCID__RAS_CONTROLLER_INTERRUPT, 564 &adev->nbio.ras_controller_irq); 565 566 return r; 567} 568 569static int nbio_v7_4_init_ras_err_event_athub_interrupt (struct amdgpu_device *adev) 570{ 571 572 int r; 573 574 /* init the irq funcs */ 575 adev->nbio.ras_err_event_athub_irq.funcs = 576 &nbio_v7_4_ras_err_event_athub_irq_funcs; 577 adev->nbio.ras_err_event_athub_irq.num_types = 1; 578 579 /* register ras err event athub interrupt */ 580 r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_BIF, 581 NBIF_7_4__SRCID__ERREVENT_ATHUB_INTERRUPT, 582 &adev->nbio.ras_err_event_athub_irq); 583 584 return r; 585} 586 587#define smnPARITY_ERROR_STATUS_UNCORR_GRP2 0x13a20030 588#define smnPARITY_ERROR_STATUS_UNCORR_GRP2_ALDE 0x13b20030 589#define smnRAS_GLOBAL_STATUS_LO_ALDE 0x13b20020 590 591static void nbio_v7_4_query_ras_error_count(struct amdgpu_device *adev, 592 void *ras_error_status) 593{ 594 uint32_t global_sts, central_sts, int_eoi, parity_sts; 595 uint32_t corr, fatal, non_fatal; 596 struct ras_err_data *err_data = (struct ras_err_data *)ras_error_status; 597 598 if (adev->asic_type == CHIP_ALDEBARAN) 599 global_sts = RREG32_PCIE(smnRAS_GLOBAL_STATUS_LO_ALDE); 600 else 601 global_sts = RREG32_PCIE(smnRAS_GLOBAL_STATUS_LO); 602 603 corr = REG_GET_FIELD(global_sts, RAS_GLOBAL_STATUS_LO, ParityErrCorr); 604 fatal = REG_GET_FIELD(global_sts, RAS_GLOBAL_STATUS_LO, ParityErrFatal); 605 non_fatal = REG_GET_FIELD(global_sts, RAS_GLOBAL_STATUS_LO, 606 ParityErrNonFatal); 607 608 if (adev->asic_type == CHIP_ALDEBARAN) 609 parity_sts = RREG32_PCIE(smnPARITY_ERROR_STATUS_UNCORR_GRP2_ALDE); 610 else 611 parity_sts = RREG32_PCIE(smnPARITY_ERROR_STATUS_UNCORR_GRP2); 612 613 if (corr) 614 err_data->ce_count++; 615 if (fatal) 616 err_data->ue_count++; 617 618 if (corr || fatal || non_fatal) { 619 central_sts = RREG32_PCIE(smnBIFL_RAS_CENTRAL_STATUS); 620 621 /* clear error status register */ 622 if (adev->asic_type == CHIP_ALDEBARAN) 623 WREG32_PCIE(smnRAS_GLOBAL_STATUS_LO_ALDE, global_sts); 624 else 625 WREG32_PCIE(smnRAS_GLOBAL_STATUS_LO, global_sts); 626 627 if (fatal) 628 { 629 /* clear parity fatal error indication field */ 630 if (adev->asic_type == CHIP_ALDEBARAN) 631 WREG32_PCIE(smnPARITY_ERROR_STATUS_UNCORR_GRP2_ALDE, parity_sts); 632 else 633 WREG32_PCIE(smnPARITY_ERROR_STATUS_UNCORR_GRP2, parity_sts); 634 } 635 636 if (REG_GET_FIELD(central_sts, BIFL_RAS_CENTRAL_STATUS, 637 BIFL_RasContller_Intr_Recv)) { 638 /* clear interrupt status register */ 639 WREG32_PCIE(smnBIFL_RAS_CENTRAL_STATUS, central_sts); 640 int_eoi = RREG32_PCIE(smnIOHC_INTERRUPT_EOI); 641 int_eoi = REG_SET_FIELD(int_eoi, 642 IOHC_INTERRUPT_EOI, SMI_EOI, 1); 643 WREG32_PCIE(smnIOHC_INTERRUPT_EOI, int_eoi); 644 } 645 } 646} 647 648static void nbio_v7_4_enable_doorbell_interrupt(struct amdgpu_device *adev, 649 bool enable) 650{ 651 if (adev->asic_type == CHIP_ALDEBARAN) 652 WREG32_FIELD15(NBIO, 0, BIF_DOORBELL_INT_CNTL_ALDE, 653 DOORBELL_INTERRUPT_DISABLE, enable ? 0 : 1); 654 else 655 WREG32_FIELD15(NBIO, 0, BIF_DOORBELL_INT_CNTL, 656 DOORBELL_INTERRUPT_DISABLE, enable ? 0 : 1); 657} 658 659const struct amdgpu_ras_block_hw_ops nbio_v7_4_ras_hw_ops = { 660 .query_ras_error_count = nbio_v7_4_query_ras_error_count, 661}; 662 663struct amdgpu_nbio_ras nbio_v7_4_ras = { 664 .ras_block = { 665 .ras_comm = { 666 .name = "pcie_bif", 667 .block = AMDGPU_RAS_BLOCK__PCIE_BIF, 668 .type = AMDGPU_RAS_ERROR__MULTI_UNCORRECTABLE, 669 }, 670 .hw_ops = &nbio_v7_4_ras_hw_ops, 671 .ras_late_init = amdgpu_nbio_ras_late_init, 672 }, 673 .handle_ras_controller_intr_no_bifring = nbio_v7_4_handle_ras_controller_intr_no_bifring, 674 .handle_ras_err_event_athub_intr_no_bifring = nbio_v7_4_handle_ras_err_event_athub_intr_no_bifring, 675 .init_ras_controller_interrupt = nbio_v7_4_init_ras_controller_interrupt, 676 .init_ras_err_event_athub_interrupt = nbio_v7_4_init_ras_err_event_athub_interrupt, 677}; 678 679 680#ifdef CONFIG_PCIEASPM 681static void nbio_v7_4_program_ltr(struct amdgpu_device *adev) 682{ 683 uint32_t def, data; 684 685 WREG32_PCIE(smnRCC_EP_DEV0_0_EP_PCIE_TX_LTR_CNTL, 0x75EB); 686 687 def = data = RREG32_PCIE(smnRCC_BIF_STRAP2); 688 data &= ~RCC_BIF_STRAP2__STRAP_LTR_IN_ASPML1_DIS_MASK; 689 if (def != data) 690 WREG32_PCIE(smnRCC_BIF_STRAP2, data); 691 692 def = data = RREG32_PCIE(smnRCC_EP_DEV0_0_EP_PCIE_TX_LTR_CNTL); 693 data &= ~EP_PCIE_TX_LTR_CNTL__LTR_PRIV_MSG_DIS_IN_PM_NON_D0_MASK; 694 if (def != data) 695 WREG32_PCIE(smnRCC_EP_DEV0_0_EP_PCIE_TX_LTR_CNTL, data); 696 697 def = data = RREG32_PCIE(smnBIF_CFG_DEV0_EPF0_DEVICE_CNTL2); 698 data |= BIF_CFG_DEV0_EPF0_DEVICE_CNTL2__LTR_EN_MASK; 699 if (def != data) 700 WREG32_PCIE(smnBIF_CFG_DEV0_EPF0_DEVICE_CNTL2, data); 701} 702#endif 703 704static void nbio_v7_4_program_aspm(struct amdgpu_device *adev) 705{ 706#ifdef CONFIG_PCIEASPM 707 uint32_t def, data; 708 709 if (amdgpu_ip_version(adev, NBIO_HWIP, 0) == IP_VERSION(7, 4, 4)) 710 return; 711 712 def = data = RREG32_PCIE(smnPCIE_LC_CNTL); 713 data &= ~PCIE_LC_CNTL__LC_L1_INACTIVITY_MASK; 714 data &= ~PCIE_LC_CNTL__LC_L0S_INACTIVITY_MASK; 715 data |= PCIE_LC_CNTL__LC_PMI_TO_L1_DIS_MASK; 716 if (def != data) 717 WREG32_PCIE(smnPCIE_LC_CNTL, data); 718 719 def = data = RREG32_PCIE(smnPCIE_LC_CNTL7); 720 data |= PCIE_LC_CNTL7__LC_NBIF_ASPM_INPUT_EN_MASK; 721 if (def != data) 722 WREG32_PCIE(smnPCIE_LC_CNTL7, data); 723 724 def = data = RREG32_PCIE(smnNBIF_MGCG_CTRL_LCLK); 725 data |= NBIF_MGCG_CTRL_LCLK__NBIF_MGCG_REG_DIS_LCLK_MASK; 726 if (def != data) 727 WREG32_PCIE(smnNBIF_MGCG_CTRL_LCLK, data); 728 729 def = data = RREG32_PCIE(smnPCIE_LC_CNTL3); 730 data |= PCIE_LC_CNTL3__LC_DSC_DONT_ENTER_L23_AFTER_PME_ACK_MASK; 731 if (def != data) 732 WREG32_PCIE(smnPCIE_LC_CNTL3, data); 733 734 def = data = RREG32_PCIE(smnRCC_BIF_STRAP3); 735 data &= ~RCC_BIF_STRAP3__STRAP_VLINK_ASPM_IDLE_TIMER_MASK; 736 data &= ~RCC_BIF_STRAP3__STRAP_VLINK_PM_L1_ENTRY_TIMER_MASK; 737 if (def != data) 738 WREG32_PCIE(smnRCC_BIF_STRAP3, data); 739 740 def = data = RREG32_PCIE(smnRCC_BIF_STRAP5); 741 data &= ~RCC_BIF_STRAP5__STRAP_VLINK_LDN_ENTRY_TIMER_MASK; 742 if (def != data) 743 WREG32_PCIE(smnRCC_BIF_STRAP5, data); 744 745 def = data = RREG32_PCIE(smnBIF_CFG_DEV0_EPF0_DEVICE_CNTL2); 746 data &= ~BIF_CFG_DEV0_EPF0_DEVICE_CNTL2__LTR_EN_MASK; 747 if (def != data) 748 WREG32_PCIE(smnBIF_CFG_DEV0_EPF0_DEVICE_CNTL2, data); 749 750 WREG32_PCIE(smnBIF_CFG_DEV0_EPF0_PCIE_LTR_CAP, 0x10011001); 751 752 def = data = RREG32_PCIE(smnPSWUSP0_PCIE_LC_CNTL2); 753 data |= PSWUSP0_PCIE_LC_CNTL2__LC_ALLOW_PDWN_IN_L1_MASK | 754 PSWUSP0_PCIE_LC_CNTL2__LC_ALLOW_PDWN_IN_L23_MASK; 755 data &= ~PSWUSP0_PCIE_LC_CNTL2__LC_RCV_L0_TO_RCV_L0S_DIS_MASK; 756 if (def != data) 757 WREG32_PCIE(smnPSWUSP0_PCIE_LC_CNTL2, data); 758 759 def = data = RREG32_PCIE(smnPCIE_LC_CNTL6); 760 data |= PCIE_LC_CNTL6__LC_L1_POWERDOWN_MASK | 761 PCIE_LC_CNTL6__LC_RX_L0S_STANDBY_EN_MASK; 762 if (def != data) 763 WREG32_PCIE(smnPCIE_LC_CNTL6, data); 764 765 /* Don't bother about LTR if LTR is not enabled 766 * in the path */ 767 if (adev->pdev->ltr_path) 768 nbio_v7_4_program_ltr(adev); 769 770 def = data = RREG32_PCIE(smnRCC_BIF_STRAP3); 771 data |= 0x5DE0 << RCC_BIF_STRAP3__STRAP_VLINK_ASPM_IDLE_TIMER__SHIFT; 772 data |= 0x0010 << RCC_BIF_STRAP3__STRAP_VLINK_PM_L1_ENTRY_TIMER__SHIFT; 773 if (def != data) 774 WREG32_PCIE(smnRCC_BIF_STRAP3, data); 775 776 def = data = RREG32_PCIE(smnRCC_BIF_STRAP5); 777 data |= 0x0010 << RCC_BIF_STRAP5__STRAP_VLINK_LDN_ENTRY_TIMER__SHIFT; 778 if (def != data) 779 WREG32_PCIE(smnRCC_BIF_STRAP5, data); 780 781 def = data = RREG32_PCIE(smnPCIE_LC_CNTL); 782 data &= ~PCIE_LC_CNTL__LC_L0S_INACTIVITY_MASK; 783 data |= 0x9 << PCIE_LC_CNTL__LC_L1_INACTIVITY__SHIFT; 784 data |= 0x1 << PCIE_LC_CNTL__LC_PMI_TO_L1_DIS__SHIFT; 785 if (def != data) 786 WREG32_PCIE(smnPCIE_LC_CNTL, data); 787 788 def = data = RREG32_PCIE(smnPCIE_LC_CNTL3); 789 data &= ~PCIE_LC_CNTL3__LC_DSC_DONT_ENTER_L23_AFTER_PME_ACK_MASK; 790 if (def != data) 791 WREG32_PCIE(smnPCIE_LC_CNTL3, data); 792#endif 793} 794 795const struct amdgpu_nbio_funcs nbio_v7_4_funcs = { 796 .get_hdp_flush_req_offset = nbio_v7_4_get_hdp_flush_req_offset, 797 .get_hdp_flush_done_offset = nbio_v7_4_get_hdp_flush_done_offset, 798 .get_pcie_index_offset = nbio_v7_4_get_pcie_index_offset, 799 .get_pcie_data_offset = nbio_v7_4_get_pcie_data_offset, 800 .get_rev_id = nbio_v7_4_get_rev_id, 801 .mc_access_enable = nbio_v7_4_mc_access_enable, 802 .get_memsize = nbio_v7_4_get_memsize, 803 .sdma_doorbell_range = nbio_v7_4_sdma_doorbell_range, 804 .vcn_doorbell_range = nbio_v7_4_vcn_doorbell_range, 805 .enable_doorbell_aperture = nbio_v7_4_enable_doorbell_aperture, 806 .enable_doorbell_selfring_aperture = nbio_v7_4_enable_doorbell_selfring_aperture, 807 .ih_doorbell_range = nbio_v7_4_ih_doorbell_range, 808 .enable_doorbell_interrupt = nbio_v7_4_enable_doorbell_interrupt, 809 .update_medium_grain_clock_gating = nbio_v7_4_update_medium_grain_clock_gating, 810 .update_medium_grain_light_sleep = nbio_v7_4_update_medium_grain_light_sleep, 811 .get_clockgating_state = nbio_v7_4_get_clockgating_state, 812 .ih_control = nbio_v7_4_ih_control, 813 .init_registers = nbio_v7_4_init_registers, 814 .remap_hdp_registers = nbio_v7_4_remap_hdp_registers, 815 .program_aspm = nbio_v7_4_program_aspm, 816}; 817