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 <linux/firmware.h> 24 #include <linux/slab.h> 25 #include <linux/module.h> 26 #include <drm/drmP.h> 27 #include "amdgpu.h" 28 #include "amdgpu_atombios.h" 29 #include "amdgpu_ih.h" 30 #include "amdgpu_uvd.h" 31 #include "amdgpu_vce.h" 32 #include "amdgpu_ucode.h" 33 #include "amdgpu_psp.h" 34 #include "amdgpu_smu.h" 35 #include "atom.h" 36 #include "amd_pcie.h" 37 38 #include "gc/gc_10_1_0_offset.h" 39 #include "gc/gc_10_1_0_sh_mask.h" 40 #include "hdp/hdp_5_0_0_offset.h" 41 #include "hdp/hdp_5_0_0_sh_mask.h" 42 43 #include "soc15.h" 44 #include "soc15_common.h" 45 #include "gmc_v10_0.h" 46 #include "gfxhub_v2_0.h" 47 #include "mmhub_v2_0.h" 48 #include "nv.h" 49 #include "navi10_ih.h" 50 #include "gfx_v10_0.h" 51 #include "sdma_v5_0.h" 52 #include "vcn_v2_0.h" 53 #include "dce_virtual.h" 54 #include "mes_v10_1.h" 55 56 static const struct amd_ip_funcs nv_common_ip_funcs; 57 58 /* 59 * Indirect registers accessor 60 */ 61 static u32 nv_pcie_rreg(struct amdgpu_device *adev, u32 reg) 62 { 63 unsigned long flags, address, data; 64 u32 r; 65 address = adev->nbio_funcs->get_pcie_index_offset(adev); 66 data = adev->nbio_funcs->get_pcie_data_offset(adev); 67 68 spin_lock_irqsave(&adev->pcie_idx_lock, flags); 69 WREG32(address, reg); 70 (void)RREG32(address); 71 r = RREG32(data); 72 spin_unlock_irqrestore(&adev->pcie_idx_lock, flags); 73 return r; 74 } 75 76 static void nv_pcie_wreg(struct amdgpu_device *adev, u32 reg, u32 v) 77 { 78 unsigned long flags, address, data; 79 80 address = adev->nbio_funcs->get_pcie_index_offset(adev); 81 data = adev->nbio_funcs->get_pcie_data_offset(adev); 82 83 spin_lock_irqsave(&adev->pcie_idx_lock, flags); 84 WREG32(address, reg); 85 (void)RREG32(address); 86 WREG32(data, v); 87 (void)RREG32(data); 88 spin_unlock_irqrestore(&adev->pcie_idx_lock, flags); 89 } 90 91 static u32 nv_didt_rreg(struct amdgpu_device *adev, u32 reg) 92 { 93 unsigned long flags, address, data; 94 u32 r; 95 96 address = SOC15_REG_OFFSET(GC, 0, mmDIDT_IND_INDEX); 97 data = SOC15_REG_OFFSET(GC, 0, mmDIDT_IND_DATA); 98 99 spin_lock_irqsave(&adev->didt_idx_lock, flags); 100 WREG32(address, (reg)); 101 r = RREG32(data); 102 spin_unlock_irqrestore(&adev->didt_idx_lock, flags); 103 return r; 104 } 105 106 static void nv_didt_wreg(struct amdgpu_device *adev, u32 reg, u32 v) 107 { 108 unsigned long flags, address, data; 109 110 address = SOC15_REG_OFFSET(GC, 0, mmDIDT_IND_INDEX); 111 data = SOC15_REG_OFFSET(GC, 0, mmDIDT_IND_DATA); 112 113 spin_lock_irqsave(&adev->didt_idx_lock, flags); 114 WREG32(address, (reg)); 115 WREG32(data, (v)); 116 spin_unlock_irqrestore(&adev->didt_idx_lock, flags); 117 } 118 119 static u32 nv_get_config_memsize(struct amdgpu_device *adev) 120 { 121 return adev->nbio_funcs->get_memsize(adev); 122 } 123 124 static u32 nv_get_xclk(struct amdgpu_device *adev) 125 { 126 return adev->clock.spll.reference_freq; 127 } 128 129 130 void nv_grbm_select(struct amdgpu_device *adev, 131 u32 me, u32 pipe, u32 queue, u32 vmid) 132 { 133 u32 grbm_gfx_cntl = 0; 134 grbm_gfx_cntl = REG_SET_FIELD(grbm_gfx_cntl, GRBM_GFX_CNTL, PIPEID, pipe); 135 grbm_gfx_cntl = REG_SET_FIELD(grbm_gfx_cntl, GRBM_GFX_CNTL, MEID, me); 136 grbm_gfx_cntl = REG_SET_FIELD(grbm_gfx_cntl, GRBM_GFX_CNTL, VMID, vmid); 137 grbm_gfx_cntl = REG_SET_FIELD(grbm_gfx_cntl, GRBM_GFX_CNTL, QUEUEID, queue); 138 139 WREG32(SOC15_REG_OFFSET(GC, 0, mmGRBM_GFX_CNTL), grbm_gfx_cntl); 140 } 141 142 static void nv_vga_set_state(struct amdgpu_device *adev, bool state) 143 { 144 /* todo */ 145 } 146 147 static bool nv_read_disabled_bios(struct amdgpu_device *adev) 148 { 149 /* todo */ 150 return false; 151 } 152 153 static bool nv_read_bios_from_rom(struct amdgpu_device *adev, 154 u8 *bios, u32 length_bytes) 155 { 156 /* TODO: will implement it when SMU header is available */ 157 return false; 158 } 159 160 static struct soc15_allowed_register_entry nv_allowed_read_registers[] = { 161 { SOC15_REG_ENTRY(GC, 0, mmGRBM_STATUS)}, 162 { SOC15_REG_ENTRY(GC, 0, mmGRBM_STATUS2)}, 163 { SOC15_REG_ENTRY(GC, 0, mmGRBM_STATUS_SE0)}, 164 { SOC15_REG_ENTRY(GC, 0, mmGRBM_STATUS_SE1)}, 165 { SOC15_REG_ENTRY(GC, 0, mmGRBM_STATUS_SE2)}, 166 { SOC15_REG_ENTRY(GC, 0, mmGRBM_STATUS_SE3)}, 167 #if 0 /* TODO: will set it when SDMA header is available */ 168 { SOC15_REG_ENTRY(SDMA0, 0, mmSDMA0_STATUS_REG)}, 169 { SOC15_REG_ENTRY(SDMA1, 0, mmSDMA1_STATUS_REG)}, 170 #endif 171 { SOC15_REG_ENTRY(GC, 0, mmCP_STAT)}, 172 { SOC15_REG_ENTRY(GC, 0, mmCP_STALLED_STAT1)}, 173 { SOC15_REG_ENTRY(GC, 0, mmCP_STALLED_STAT2)}, 174 { SOC15_REG_ENTRY(GC, 0, mmCP_STALLED_STAT3)}, 175 { SOC15_REG_ENTRY(GC, 0, mmCP_CPF_BUSY_STAT)}, 176 { SOC15_REG_ENTRY(GC, 0, mmCP_CPF_STALLED_STAT1)}, 177 { SOC15_REG_ENTRY(GC, 0, mmCP_CPF_STATUS)}, 178 { SOC15_REG_ENTRY(GC, 0, mmCP_CPC_STALLED_STAT1)}, 179 { SOC15_REG_ENTRY(GC, 0, mmCP_CPC_STATUS)}, 180 { SOC15_REG_ENTRY(GC, 0, mmGB_ADDR_CONFIG)}, 181 }; 182 183 static uint32_t nv_read_indexed_register(struct amdgpu_device *adev, u32 se_num, 184 u32 sh_num, u32 reg_offset) 185 { 186 uint32_t val; 187 188 mutex_lock(&adev->grbm_idx_mutex); 189 if (se_num != 0xffffffff || sh_num != 0xffffffff) 190 amdgpu_gfx_select_se_sh(adev, se_num, sh_num, 0xffffffff); 191 192 val = RREG32(reg_offset); 193 194 if (se_num != 0xffffffff || sh_num != 0xffffffff) 195 amdgpu_gfx_select_se_sh(adev, 0xffffffff, 0xffffffff, 0xffffffff); 196 mutex_unlock(&adev->grbm_idx_mutex); 197 return val; 198 } 199 200 static uint32_t nv_get_register_value(struct amdgpu_device *adev, 201 bool indexed, u32 se_num, 202 u32 sh_num, u32 reg_offset) 203 { 204 if (indexed) { 205 return nv_read_indexed_register(adev, se_num, sh_num, reg_offset); 206 } else { 207 if (reg_offset == SOC15_REG_OFFSET(GC, 0, mmGB_ADDR_CONFIG)) 208 return adev->gfx.config.gb_addr_config; 209 return RREG32(reg_offset); 210 } 211 } 212 213 static int nv_read_register(struct amdgpu_device *adev, u32 se_num, 214 u32 sh_num, u32 reg_offset, u32 *value) 215 { 216 uint32_t i; 217 struct soc15_allowed_register_entry *en; 218 219 *value = 0; 220 for (i = 0; i < ARRAY_SIZE(nv_allowed_read_registers); i++) { 221 en = &nv_allowed_read_registers[i]; 222 if (reg_offset != 223 (adev->reg_offset[en->hwip][en->inst][en->seg] + en->reg_offset)) 224 continue; 225 226 *value = nv_get_register_value(adev, 227 nv_allowed_read_registers[i].grbm_indexed, 228 se_num, sh_num, reg_offset); 229 return 0; 230 } 231 return -EINVAL; 232 } 233 234 #if 0 235 static void nv_gpu_pci_config_reset(struct amdgpu_device *adev) 236 { 237 u32 i; 238 239 dev_info(adev->dev, "GPU pci config reset\n"); 240 241 /* disable BM */ 242 pci_clear_master(adev->pdev); 243 /* reset */ 244 amdgpu_pci_config_reset(adev); 245 246 udelay(100); 247 248 /* wait for asic to come out of reset */ 249 for (i = 0; i < adev->usec_timeout; i++) { 250 u32 memsize = nbio_v2_3_get_memsize(adev); 251 if (memsize != 0xffffffff) 252 break; 253 udelay(1); 254 } 255 256 } 257 #endif 258 259 static int nv_asic_mode1_reset(struct amdgpu_device *adev) 260 { 261 u32 i; 262 int ret = 0; 263 264 amdgpu_atombios_scratch_regs_engine_hung(adev, true); 265 266 dev_info(adev->dev, "GPU mode1 reset\n"); 267 268 /* disable BM */ 269 pci_clear_master(adev->pdev); 270 271 pci_save_state(adev->pdev); 272 273 ret = psp_gpu_reset(adev); 274 if (ret) 275 dev_err(adev->dev, "GPU mode1 reset failed\n"); 276 277 pci_restore_state(adev->pdev); 278 279 /* wait for asic to come out of reset */ 280 for (i = 0; i < adev->usec_timeout; i++) { 281 u32 memsize = adev->nbio_funcs->get_memsize(adev); 282 283 if (memsize != 0xffffffff) 284 break; 285 udelay(1); 286 } 287 288 amdgpu_atombios_scratch_regs_engine_hung(adev, false); 289 290 return ret; 291 } 292 static int nv_asic_reset(struct amdgpu_device *adev) 293 { 294 295 /* FIXME: it doesn't work since vega10 */ 296 #if 0 297 amdgpu_atombios_scratch_regs_engine_hung(adev, true); 298 299 nv_gpu_pci_config_reset(adev); 300 301 amdgpu_atombios_scratch_regs_engine_hung(adev, false); 302 #endif 303 int ret = 0; 304 struct smu_context *smu = &adev->smu; 305 306 if (smu_baco_is_support(smu)) 307 ret = smu_baco_reset(smu); 308 else 309 ret = nv_asic_mode1_reset(adev); 310 311 return ret; 312 } 313 314 static int nv_set_uvd_clocks(struct amdgpu_device *adev, u32 vclk, u32 dclk) 315 { 316 /* todo */ 317 return 0; 318 } 319 320 static int nv_set_vce_clocks(struct amdgpu_device *adev, u32 evclk, u32 ecclk) 321 { 322 /* todo */ 323 return 0; 324 } 325 326 static void nv_pcie_gen3_enable(struct amdgpu_device *adev) 327 { 328 if (pci_is_root_bus(adev->pdev->bus)) 329 return; 330 331 if (amdgpu_pcie_gen2 == 0) 332 return; 333 334 if (!(adev->pm.pcie_gen_mask & (CAIL_PCIE_LINK_SPEED_SUPPORT_GEN2 | 335 CAIL_PCIE_LINK_SPEED_SUPPORT_GEN3))) 336 return; 337 338 /* todo */ 339 } 340 341 static void nv_program_aspm(struct amdgpu_device *adev) 342 { 343 344 if (amdgpu_aspm == 0) 345 return; 346 347 /* todo */ 348 } 349 350 static void nv_enable_doorbell_aperture(struct amdgpu_device *adev, 351 bool enable) 352 { 353 adev->nbio_funcs->enable_doorbell_aperture(adev, enable); 354 adev->nbio_funcs->enable_doorbell_selfring_aperture(adev, enable); 355 } 356 357 static const struct amdgpu_ip_block_version nv_common_ip_block = 358 { 359 .type = AMD_IP_BLOCK_TYPE_COMMON, 360 .major = 1, 361 .minor = 0, 362 .rev = 0, 363 .funcs = &nv_common_ip_funcs, 364 }; 365 366 int nv_set_ip_blocks(struct amdgpu_device *adev) 367 { 368 /* Set IP register base before any HW register access */ 369 switch (adev->asic_type) { 370 case CHIP_NAVI10: 371 navi10_reg_base_init(adev); 372 break; 373 default: 374 return -EINVAL; 375 } 376 377 adev->nbio_funcs = &nbio_v2_3_funcs; 378 379 adev->nbio_funcs->detect_hw_virt(adev); 380 381 switch (adev->asic_type) { 382 case CHIP_NAVI10: 383 amdgpu_device_ip_block_add(adev, &nv_common_ip_block); 384 amdgpu_device_ip_block_add(adev, &gmc_v10_0_ip_block); 385 amdgpu_device_ip_block_add(adev, &navi10_ih_ip_block); 386 amdgpu_device_ip_block_add(adev, &psp_v11_0_ip_block); 387 if (adev->firmware.load_type == AMDGPU_FW_LOAD_PSP && 388 is_support_sw_smu(adev)) 389 amdgpu_device_ip_block_add(adev, &smu_v11_0_ip_block); 390 if (adev->enable_virtual_display || amdgpu_sriov_vf(adev)) 391 amdgpu_device_ip_block_add(adev, &dce_virtual_ip_block); 392 #if defined(CONFIG_DRM_AMD_DC) 393 else if (amdgpu_device_has_dc_support(adev)) 394 amdgpu_device_ip_block_add(adev, &dm_ip_block); 395 #endif 396 amdgpu_device_ip_block_add(adev, &gfx_v10_0_ip_block); 397 amdgpu_device_ip_block_add(adev, &sdma_v5_0_ip_block); 398 if (adev->firmware.load_type == AMDGPU_FW_LOAD_DIRECT && 399 is_support_sw_smu(adev)) 400 amdgpu_device_ip_block_add(adev, &smu_v11_0_ip_block); 401 amdgpu_device_ip_block_add(adev, &vcn_v2_0_ip_block); 402 if (adev->enable_mes) 403 amdgpu_device_ip_block_add(adev, &mes_v10_1_ip_block); 404 break; 405 default: 406 return -EINVAL; 407 } 408 409 return 0; 410 } 411 412 static uint32_t nv_get_rev_id(struct amdgpu_device *adev) 413 { 414 return adev->nbio_funcs->get_rev_id(adev); 415 } 416 417 static void nv_flush_hdp(struct amdgpu_device *adev, struct amdgpu_ring *ring) 418 { 419 adev->nbio_funcs->hdp_flush(adev, ring); 420 } 421 422 static void nv_invalidate_hdp(struct amdgpu_device *adev, 423 struct amdgpu_ring *ring) 424 { 425 if (!ring || !ring->funcs->emit_wreg) { 426 WREG32_SOC15_NO_KIQ(NBIO, 0, mmHDP_READ_CACHE_INVALIDATE, 1); 427 } else { 428 amdgpu_ring_emit_wreg(ring, SOC15_REG_OFFSET( 429 HDP, 0, mmHDP_READ_CACHE_INVALIDATE), 1); 430 } 431 } 432 433 static bool nv_need_full_reset(struct amdgpu_device *adev) 434 { 435 return true; 436 } 437 438 static void nv_get_pcie_usage(struct amdgpu_device *adev, 439 uint64_t *count0, 440 uint64_t *count1) 441 { 442 /*TODO*/ 443 } 444 445 static bool nv_need_reset_on_init(struct amdgpu_device *adev) 446 { 447 #if 0 448 u32 sol_reg; 449 450 if (adev->flags & AMD_IS_APU) 451 return false; 452 453 /* Check sOS sign of life register to confirm sys driver and sOS 454 * are already been loaded. 455 */ 456 sol_reg = RREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_81); 457 if (sol_reg) 458 return true; 459 #endif 460 /* TODO: re-enable it when mode1 reset is functional */ 461 return false; 462 } 463 464 static void nv_init_doorbell_index(struct amdgpu_device *adev) 465 { 466 adev->doorbell_index.kiq = AMDGPU_NAVI10_DOORBELL_KIQ; 467 adev->doorbell_index.mec_ring0 = AMDGPU_NAVI10_DOORBELL_MEC_RING0; 468 adev->doorbell_index.mec_ring1 = AMDGPU_NAVI10_DOORBELL_MEC_RING1; 469 adev->doorbell_index.mec_ring2 = AMDGPU_NAVI10_DOORBELL_MEC_RING2; 470 adev->doorbell_index.mec_ring3 = AMDGPU_NAVI10_DOORBELL_MEC_RING3; 471 adev->doorbell_index.mec_ring4 = AMDGPU_NAVI10_DOORBELL_MEC_RING4; 472 adev->doorbell_index.mec_ring5 = AMDGPU_NAVI10_DOORBELL_MEC_RING5; 473 adev->doorbell_index.mec_ring6 = AMDGPU_NAVI10_DOORBELL_MEC_RING6; 474 adev->doorbell_index.mec_ring7 = AMDGPU_NAVI10_DOORBELL_MEC_RING7; 475 adev->doorbell_index.userqueue_start = AMDGPU_NAVI10_DOORBELL_USERQUEUE_START; 476 adev->doorbell_index.userqueue_end = AMDGPU_NAVI10_DOORBELL_USERQUEUE_END; 477 adev->doorbell_index.gfx_ring0 = AMDGPU_NAVI10_DOORBELL_GFX_RING0; 478 adev->doorbell_index.gfx_ring1 = AMDGPU_NAVI10_DOORBELL_GFX_RING1; 479 adev->doorbell_index.sdma_engine[0] = AMDGPU_NAVI10_DOORBELL_sDMA_ENGINE0; 480 adev->doorbell_index.sdma_engine[1] = AMDGPU_NAVI10_DOORBELL_sDMA_ENGINE1; 481 adev->doorbell_index.ih = AMDGPU_NAVI10_DOORBELL_IH; 482 adev->doorbell_index.vcn.vcn_ring0_1 = AMDGPU_NAVI10_DOORBELL64_VCN0_1; 483 adev->doorbell_index.vcn.vcn_ring2_3 = AMDGPU_NAVI10_DOORBELL64_VCN2_3; 484 adev->doorbell_index.vcn.vcn_ring4_5 = AMDGPU_NAVI10_DOORBELL64_VCN4_5; 485 adev->doorbell_index.vcn.vcn_ring6_7 = AMDGPU_NAVI10_DOORBELL64_VCN6_7; 486 adev->doorbell_index.first_non_cp = AMDGPU_NAVI10_DOORBELL64_FIRST_NON_CP; 487 adev->doorbell_index.last_non_cp = AMDGPU_NAVI10_DOORBELL64_LAST_NON_CP; 488 489 adev->doorbell_index.max_assignment = AMDGPU_NAVI10_DOORBELL_MAX_ASSIGNMENT << 1; 490 adev->doorbell_index.sdma_doorbell_range = 20; 491 } 492 493 static const struct amdgpu_asic_funcs nv_asic_funcs = 494 { 495 .read_disabled_bios = &nv_read_disabled_bios, 496 .read_bios_from_rom = &nv_read_bios_from_rom, 497 .read_register = &nv_read_register, 498 .reset = &nv_asic_reset, 499 .set_vga_state = &nv_vga_set_state, 500 .get_xclk = &nv_get_xclk, 501 .set_uvd_clocks = &nv_set_uvd_clocks, 502 .set_vce_clocks = &nv_set_vce_clocks, 503 .get_config_memsize = &nv_get_config_memsize, 504 .flush_hdp = &nv_flush_hdp, 505 .invalidate_hdp = &nv_invalidate_hdp, 506 .init_doorbell_index = &nv_init_doorbell_index, 507 .need_full_reset = &nv_need_full_reset, 508 .get_pcie_usage = &nv_get_pcie_usage, 509 .need_reset_on_init = &nv_need_reset_on_init, 510 }; 511 512 static int nv_common_early_init(void *handle) 513 { 514 bool psp_enabled = false; 515 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 516 517 adev->smc_rreg = NULL; 518 adev->smc_wreg = NULL; 519 adev->pcie_rreg = &nv_pcie_rreg; 520 adev->pcie_wreg = &nv_pcie_wreg; 521 522 /* TODO: will add them during VCN v2 implementation */ 523 adev->uvd_ctx_rreg = NULL; 524 adev->uvd_ctx_wreg = NULL; 525 526 adev->didt_rreg = &nv_didt_rreg; 527 adev->didt_wreg = &nv_didt_wreg; 528 529 adev->asic_funcs = &nv_asic_funcs; 530 531 if (amdgpu_device_ip_get_ip_block(adev, AMD_IP_BLOCK_TYPE_PSP) && 532 (amdgpu_ip_block_mask & (1 << AMD_IP_BLOCK_TYPE_PSP))) 533 psp_enabled = true; 534 535 adev->rev_id = nv_get_rev_id(adev); 536 adev->external_rev_id = 0xff; 537 switch (adev->asic_type) { 538 case CHIP_NAVI10: 539 adev->cg_flags = AMD_CG_SUPPORT_GFX_MGCG | 540 AMD_CG_SUPPORT_GFX_CGCG | 541 AMD_CG_SUPPORT_IH_CG | 542 AMD_CG_SUPPORT_HDP_MGCG | 543 AMD_CG_SUPPORT_HDP_LS | 544 AMD_CG_SUPPORT_SDMA_MGCG | 545 AMD_CG_SUPPORT_SDMA_LS | 546 AMD_CG_SUPPORT_MC_MGCG | 547 AMD_CG_SUPPORT_MC_LS | 548 AMD_CG_SUPPORT_ATHUB_MGCG | 549 AMD_CG_SUPPORT_ATHUB_LS | 550 AMD_CG_SUPPORT_VCN_MGCG | 551 AMD_CG_SUPPORT_BIF_MGCG | 552 AMD_CG_SUPPORT_BIF_LS; 553 adev->pg_flags = AMD_PG_SUPPORT_VCN | 554 AMD_PG_SUPPORT_VCN_DPG | 555 AMD_PG_SUPPORT_MMHUB | 556 AMD_PG_SUPPORT_ATHUB; 557 adev->external_rev_id = adev->rev_id + 0x1; 558 break; 559 default: 560 /* FIXME: not supported yet */ 561 return -EINVAL; 562 } 563 564 return 0; 565 } 566 567 static int nv_common_late_init(void *handle) 568 { 569 return 0; 570 } 571 572 static int nv_common_sw_init(void *handle) 573 { 574 return 0; 575 } 576 577 static int nv_common_sw_fini(void *handle) 578 { 579 return 0; 580 } 581 582 static int nv_common_hw_init(void *handle) 583 { 584 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 585 586 /* enable pcie gen2/3 link */ 587 nv_pcie_gen3_enable(adev); 588 /* enable aspm */ 589 nv_program_aspm(adev); 590 /* setup nbio registers */ 591 adev->nbio_funcs->init_registers(adev); 592 /* enable the doorbell aperture */ 593 nv_enable_doorbell_aperture(adev, true); 594 595 return 0; 596 } 597 598 static int nv_common_hw_fini(void *handle) 599 { 600 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 601 602 /* disable the doorbell aperture */ 603 nv_enable_doorbell_aperture(adev, false); 604 605 return 0; 606 } 607 608 static int nv_common_suspend(void *handle) 609 { 610 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 611 612 return nv_common_hw_fini(adev); 613 } 614 615 static int nv_common_resume(void *handle) 616 { 617 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 618 619 return nv_common_hw_init(adev); 620 } 621 622 static bool nv_common_is_idle(void *handle) 623 { 624 return true; 625 } 626 627 static int nv_common_wait_for_idle(void *handle) 628 { 629 return 0; 630 } 631 632 static int nv_common_soft_reset(void *handle) 633 { 634 return 0; 635 } 636 637 static void nv_update_hdp_mem_power_gating(struct amdgpu_device *adev, 638 bool enable) 639 { 640 uint32_t hdp_clk_cntl, hdp_clk_cntl1; 641 uint32_t hdp_mem_pwr_cntl; 642 643 if (!(adev->cg_flags & (AMD_CG_SUPPORT_HDP_LS | 644 AMD_CG_SUPPORT_HDP_DS | 645 AMD_CG_SUPPORT_HDP_SD))) 646 return; 647 648 hdp_clk_cntl = hdp_clk_cntl1 = RREG32_SOC15(HDP, 0, mmHDP_CLK_CNTL); 649 hdp_mem_pwr_cntl = RREG32_SOC15(HDP, 0, mmHDP_MEM_POWER_CTRL); 650 651 /* Before doing clock/power mode switch, 652 * forced on IPH & RC clock */ 653 hdp_clk_cntl = REG_SET_FIELD(hdp_clk_cntl, HDP_CLK_CNTL, 654 IPH_MEM_CLK_SOFT_OVERRIDE, 1); 655 hdp_clk_cntl = REG_SET_FIELD(hdp_clk_cntl, HDP_CLK_CNTL, 656 RC_MEM_CLK_SOFT_OVERRIDE, 1); 657 WREG32_SOC15(HDP, 0, mmHDP_CLK_CNTL, hdp_clk_cntl); 658 659 /* HDP 5.0 doesn't support dynamic power mode switch, 660 * disable clock and power gating before any changing */ 661 hdp_mem_pwr_cntl = REG_SET_FIELD(hdp_mem_pwr_cntl, HDP_MEM_POWER_CTRL, 662 IPH_MEM_POWER_CTRL_EN, 0); 663 hdp_mem_pwr_cntl = REG_SET_FIELD(hdp_mem_pwr_cntl, HDP_MEM_POWER_CTRL, 664 IPH_MEM_POWER_LS_EN, 0); 665 hdp_mem_pwr_cntl = REG_SET_FIELD(hdp_mem_pwr_cntl, HDP_MEM_POWER_CTRL, 666 IPH_MEM_POWER_DS_EN, 0); 667 hdp_mem_pwr_cntl = REG_SET_FIELD(hdp_mem_pwr_cntl, HDP_MEM_POWER_CTRL, 668 IPH_MEM_POWER_SD_EN, 0); 669 hdp_mem_pwr_cntl = REG_SET_FIELD(hdp_mem_pwr_cntl, HDP_MEM_POWER_CTRL, 670 RC_MEM_POWER_CTRL_EN, 0); 671 hdp_mem_pwr_cntl = REG_SET_FIELD(hdp_mem_pwr_cntl, HDP_MEM_POWER_CTRL, 672 RC_MEM_POWER_LS_EN, 0); 673 hdp_mem_pwr_cntl = REG_SET_FIELD(hdp_mem_pwr_cntl, HDP_MEM_POWER_CTRL, 674 RC_MEM_POWER_DS_EN, 0); 675 hdp_mem_pwr_cntl = REG_SET_FIELD(hdp_mem_pwr_cntl, HDP_MEM_POWER_CTRL, 676 RC_MEM_POWER_SD_EN, 0); 677 WREG32_SOC15(HDP, 0, mmHDP_MEM_POWER_CTRL, hdp_mem_pwr_cntl); 678 679 /* only one clock gating mode (LS/DS/SD) can be enabled */ 680 if (adev->cg_flags & AMD_CG_SUPPORT_HDP_LS) { 681 hdp_mem_pwr_cntl = REG_SET_FIELD(hdp_mem_pwr_cntl, 682 HDP_MEM_POWER_CTRL, 683 IPH_MEM_POWER_LS_EN, enable); 684 hdp_mem_pwr_cntl = REG_SET_FIELD(hdp_mem_pwr_cntl, 685 HDP_MEM_POWER_CTRL, 686 RC_MEM_POWER_LS_EN, enable); 687 } else if (adev->cg_flags & AMD_CG_SUPPORT_HDP_DS) { 688 hdp_mem_pwr_cntl = REG_SET_FIELD(hdp_mem_pwr_cntl, 689 HDP_MEM_POWER_CTRL, 690 IPH_MEM_POWER_DS_EN, enable); 691 hdp_mem_pwr_cntl = REG_SET_FIELD(hdp_mem_pwr_cntl, 692 HDP_MEM_POWER_CTRL, 693 RC_MEM_POWER_DS_EN, enable); 694 } else if (adev->cg_flags & AMD_CG_SUPPORT_HDP_SD) { 695 hdp_mem_pwr_cntl = REG_SET_FIELD(hdp_mem_pwr_cntl, 696 HDP_MEM_POWER_CTRL, 697 IPH_MEM_POWER_SD_EN, enable); 698 /* RC should not use shut down mode, fallback to ds */ 699 hdp_mem_pwr_cntl = REG_SET_FIELD(hdp_mem_pwr_cntl, 700 HDP_MEM_POWER_CTRL, 701 RC_MEM_POWER_DS_EN, enable); 702 } 703 704 WREG32_SOC15(HDP, 0, mmHDP_MEM_POWER_CTRL, hdp_mem_pwr_cntl); 705 706 /* restore IPH & RC clock override after clock/power mode changing */ 707 WREG32_SOC15(HDP, 0, mmHDP_CLK_CNTL, hdp_clk_cntl1); 708 } 709 710 static void nv_update_hdp_clock_gating(struct amdgpu_device *adev, 711 bool enable) 712 { 713 uint32_t hdp_clk_cntl; 714 715 if (!(adev->cg_flags & AMD_CG_SUPPORT_HDP_MGCG)) 716 return; 717 718 hdp_clk_cntl = RREG32_SOC15(HDP, 0, mmHDP_CLK_CNTL); 719 720 if (enable) { 721 hdp_clk_cntl &= 722 ~(uint32_t) 723 (HDP_CLK_CNTL__IPH_MEM_CLK_SOFT_OVERRIDE_MASK | 724 HDP_CLK_CNTL__RC_MEM_CLK_SOFT_OVERRIDE_MASK | 725 HDP_CLK_CNTL__DBUS_CLK_SOFT_OVERRIDE_MASK | 726 HDP_CLK_CNTL__DYN_CLK_SOFT_OVERRIDE_MASK | 727 HDP_CLK_CNTL__XDP_REG_CLK_SOFT_OVERRIDE_MASK | 728 HDP_CLK_CNTL__HDP_REG_CLK_SOFT_OVERRIDE_MASK); 729 } else { 730 hdp_clk_cntl |= HDP_CLK_CNTL__IPH_MEM_CLK_SOFT_OVERRIDE_MASK | 731 HDP_CLK_CNTL__RC_MEM_CLK_SOFT_OVERRIDE_MASK | 732 HDP_CLK_CNTL__DBUS_CLK_SOFT_OVERRIDE_MASK | 733 HDP_CLK_CNTL__DYN_CLK_SOFT_OVERRIDE_MASK | 734 HDP_CLK_CNTL__XDP_REG_CLK_SOFT_OVERRIDE_MASK | 735 HDP_CLK_CNTL__HDP_REG_CLK_SOFT_OVERRIDE_MASK; 736 } 737 738 WREG32_SOC15(HDP, 0, mmHDP_CLK_CNTL, hdp_clk_cntl); 739 } 740 741 static int nv_common_set_clockgating_state(void *handle, 742 enum amd_clockgating_state state) 743 { 744 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 745 746 if (amdgpu_sriov_vf(adev)) 747 return 0; 748 749 switch (adev->asic_type) { 750 case CHIP_NAVI10: 751 adev->nbio_funcs->update_medium_grain_clock_gating(adev, 752 state == AMD_CG_STATE_GATE ? true : false); 753 adev->nbio_funcs->update_medium_grain_light_sleep(adev, 754 state == AMD_CG_STATE_GATE ? true : false); 755 nv_update_hdp_mem_power_gating(adev, 756 state == AMD_CG_STATE_GATE ? true : false); 757 nv_update_hdp_clock_gating(adev, 758 state == AMD_CG_STATE_GATE ? true : false); 759 break; 760 default: 761 break; 762 } 763 return 0; 764 } 765 766 static int nv_common_set_powergating_state(void *handle, 767 enum amd_powergating_state state) 768 { 769 /* TODO */ 770 return 0; 771 } 772 773 static void nv_common_get_clockgating_state(void *handle, u32 *flags) 774 { 775 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 776 uint32_t tmp; 777 778 if (amdgpu_sriov_vf(adev)) 779 *flags = 0; 780 781 adev->nbio_funcs->get_clockgating_state(adev, flags); 782 783 /* AMD_CG_SUPPORT_HDP_MGCG */ 784 tmp = RREG32_SOC15(HDP, 0, mmHDP_CLK_CNTL); 785 if (!(tmp & (HDP_CLK_CNTL__IPH_MEM_CLK_SOFT_OVERRIDE_MASK | 786 HDP_CLK_CNTL__RC_MEM_CLK_SOFT_OVERRIDE_MASK | 787 HDP_CLK_CNTL__DBUS_CLK_SOFT_OVERRIDE_MASK | 788 HDP_CLK_CNTL__DYN_CLK_SOFT_OVERRIDE_MASK | 789 HDP_CLK_CNTL__XDP_REG_CLK_SOFT_OVERRIDE_MASK | 790 HDP_CLK_CNTL__HDP_REG_CLK_SOFT_OVERRIDE_MASK))) 791 *flags |= AMD_CG_SUPPORT_HDP_MGCG; 792 793 /* AMD_CG_SUPPORT_HDP_LS/DS/SD */ 794 tmp = RREG32_SOC15(HDP, 0, mmHDP_MEM_POWER_CTRL); 795 if (tmp & HDP_MEM_POWER_CTRL__IPH_MEM_POWER_LS_EN_MASK) 796 *flags |= AMD_CG_SUPPORT_HDP_LS; 797 else if (tmp & HDP_MEM_POWER_CTRL__IPH_MEM_POWER_DS_EN_MASK) 798 *flags |= AMD_CG_SUPPORT_HDP_DS; 799 else if (tmp & HDP_MEM_POWER_CTRL__IPH_MEM_POWER_SD_EN_MASK) 800 *flags |= AMD_CG_SUPPORT_HDP_SD; 801 802 return; 803 } 804 805 static const struct amd_ip_funcs nv_common_ip_funcs = { 806 .name = "nv_common", 807 .early_init = nv_common_early_init, 808 .late_init = nv_common_late_init, 809 .sw_init = nv_common_sw_init, 810 .sw_fini = nv_common_sw_fini, 811 .hw_init = nv_common_hw_init, 812 .hw_fini = nv_common_hw_fini, 813 .suspend = nv_common_suspend, 814 .resume = nv_common_resume, 815 .is_idle = nv_common_is_idle, 816 .wait_for_idle = nv_common_wait_for_idle, 817 .soft_reset = nv_common_soft_reset, 818 .set_clockgating_state = nv_common_set_clockgating_state, 819 .set_powergating_state = nv_common_set_powergating_state, 820 .get_clockgating_state = nv_common_get_clockgating_state, 821 }; 822