1 /* 2 * Copyright 2016 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 * Author: Huang Rui 23 * 24 */ 25 26 #include <linux/firmware.h> 27 #include <drm/drmP.h> 28 #include "amdgpu.h" 29 #include "amdgpu_psp.h" 30 #include "amdgpu_ucode.h" 31 #include "soc15_common.h" 32 #include "psp_v3_1.h" 33 34 #include "soc15ip.h" 35 #include "mp/mp_9_0_offset.h" 36 #include "mp/mp_9_0_sh_mask.h" 37 #include "gc/gc_9_0_offset.h" 38 #include "sdma0/sdma0_4_0_offset.h" 39 #include "nbio/nbio_6_1_offset.h" 40 41 MODULE_FIRMWARE("amdgpu/vega10_sos.bin"); 42 MODULE_FIRMWARE("amdgpu/vega10_asd.bin"); 43 44 #define smnMP1_FIRMWARE_FLAGS 0x3010028 45 46 static int 47 psp_v3_1_get_fw_type(struct amdgpu_firmware_info *ucode, enum psp_gfx_fw_type *type) 48 { 49 switch(ucode->ucode_id) { 50 case AMDGPU_UCODE_ID_SDMA0: 51 *type = GFX_FW_TYPE_SDMA0; 52 break; 53 case AMDGPU_UCODE_ID_SDMA1: 54 *type = GFX_FW_TYPE_SDMA1; 55 break; 56 case AMDGPU_UCODE_ID_CP_CE: 57 *type = GFX_FW_TYPE_CP_CE; 58 break; 59 case AMDGPU_UCODE_ID_CP_PFP: 60 *type = GFX_FW_TYPE_CP_PFP; 61 break; 62 case AMDGPU_UCODE_ID_CP_ME: 63 *type = GFX_FW_TYPE_CP_ME; 64 break; 65 case AMDGPU_UCODE_ID_CP_MEC1: 66 *type = GFX_FW_TYPE_CP_MEC; 67 break; 68 case AMDGPU_UCODE_ID_CP_MEC1_JT: 69 *type = GFX_FW_TYPE_CP_MEC_ME1; 70 break; 71 case AMDGPU_UCODE_ID_CP_MEC2: 72 *type = GFX_FW_TYPE_CP_MEC; 73 break; 74 case AMDGPU_UCODE_ID_CP_MEC2_JT: 75 *type = GFX_FW_TYPE_CP_MEC_ME2; 76 break; 77 case AMDGPU_UCODE_ID_RLC_G: 78 *type = GFX_FW_TYPE_RLC_G; 79 break; 80 case AMDGPU_UCODE_ID_SMC: 81 *type = GFX_FW_TYPE_SMU; 82 break; 83 case AMDGPU_UCODE_ID_UVD: 84 *type = GFX_FW_TYPE_UVD; 85 break; 86 case AMDGPU_UCODE_ID_VCE: 87 *type = GFX_FW_TYPE_VCE; 88 break; 89 case AMDGPU_UCODE_ID_MAXIMUM: 90 default: 91 return -EINVAL; 92 } 93 94 return 0; 95 } 96 97 int psp_v3_1_init_microcode(struct psp_context *psp) 98 { 99 struct amdgpu_device *adev = psp->adev; 100 const char *chip_name; 101 char fw_name[30]; 102 int err = 0; 103 const struct psp_firmware_header_v1_0 *hdr; 104 105 DRM_DEBUG("\n"); 106 107 switch (adev->asic_type) { 108 case CHIP_VEGA10: 109 chip_name = "vega10"; 110 break; 111 default: BUG(); 112 } 113 114 snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_sos.bin", chip_name); 115 err = request_firmware(&adev->psp.sos_fw, fw_name, adev->dev); 116 if (err) 117 goto out; 118 119 err = amdgpu_ucode_validate(adev->psp.sos_fw); 120 if (err) 121 goto out; 122 123 hdr = (const struct psp_firmware_header_v1_0 *)adev->psp.sos_fw->data; 124 adev->psp.sos_fw_version = le32_to_cpu(hdr->header.ucode_version); 125 adev->psp.sos_feature_version = le32_to_cpu(hdr->ucode_feature_version); 126 adev->psp.sos_bin_size = le32_to_cpu(hdr->sos_size_bytes); 127 adev->psp.sys_bin_size = le32_to_cpu(hdr->header.ucode_size_bytes) - 128 le32_to_cpu(hdr->sos_size_bytes); 129 adev->psp.sys_start_addr = (uint8_t *)hdr + 130 le32_to_cpu(hdr->header.ucode_array_offset_bytes); 131 adev->psp.sos_start_addr = (uint8_t *)adev->psp.sys_start_addr + 132 le32_to_cpu(hdr->sos_offset_bytes); 133 134 snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_asd.bin", chip_name); 135 err = request_firmware(&adev->psp.asd_fw, fw_name, adev->dev); 136 if (err) 137 goto out; 138 139 err = amdgpu_ucode_validate(adev->psp.asd_fw); 140 if (err) 141 goto out; 142 143 hdr = (const struct psp_firmware_header_v1_0 *)adev->psp.asd_fw->data; 144 adev->psp.asd_fw_version = le32_to_cpu(hdr->header.ucode_version); 145 adev->psp.asd_feature_version = le32_to_cpu(hdr->ucode_feature_version); 146 adev->psp.asd_ucode_size = le32_to_cpu(hdr->header.ucode_size_bytes); 147 adev->psp.asd_start_addr = (uint8_t *)hdr + 148 le32_to_cpu(hdr->header.ucode_array_offset_bytes); 149 150 return 0; 151 out: 152 if (err) { 153 dev_err(adev->dev, 154 "psp v3.1: Failed to load firmware \"%s\"\n", 155 fw_name); 156 release_firmware(adev->psp.sos_fw); 157 adev->psp.sos_fw = NULL; 158 release_firmware(adev->psp.asd_fw); 159 adev->psp.asd_fw = NULL; 160 } 161 162 return err; 163 } 164 165 int psp_v3_1_bootloader_load_sysdrv(struct psp_context *psp) 166 { 167 int ret; 168 uint32_t psp_gfxdrv_command_reg = 0; 169 struct amdgpu_device *adev = psp->adev; 170 uint32_t sol_reg; 171 172 /* Check sOS sign of life register to confirm sys driver and sOS 173 * are already been loaded. 174 */ 175 sol_reg = RREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_81); 176 if (sol_reg) 177 return 0; 178 179 /* Wait for bootloader to signify that is ready having bit 31 of C2PMSG_35 set to 1 */ 180 ret = psp_wait_for(psp, SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_35), 181 0x80000000, 0x80000000, false); 182 if (ret) 183 return ret; 184 185 memset(psp->fw_pri_buf, 0, PSP_1_MEG); 186 187 /* Copy PSP System Driver binary to memory */ 188 memcpy(psp->fw_pri_buf, psp->sys_start_addr, psp->sys_bin_size); 189 190 /* Provide the sys driver to bootrom */ 191 WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_36, 192 (uint32_t)(psp->fw_pri_mc_addr >> 20)); 193 psp_gfxdrv_command_reg = 1 << 16; 194 WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_35, 195 psp_gfxdrv_command_reg); 196 197 /* there might be handshake issue with hardware which needs delay */ 198 mdelay(20); 199 200 ret = psp_wait_for(psp, SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_35), 201 0x80000000, 0x80000000, false); 202 203 return ret; 204 } 205 206 int psp_v3_1_bootloader_load_sos(struct psp_context *psp) 207 { 208 int ret; 209 unsigned int psp_gfxdrv_command_reg = 0; 210 struct amdgpu_device *adev = psp->adev; 211 uint32_t sol_reg; 212 213 /* Check sOS sign of life register to confirm sys driver and sOS 214 * are already been loaded. 215 */ 216 sol_reg = RREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_81); 217 if (sol_reg) 218 return 0; 219 220 /* Wait for bootloader to signify that is ready having bit 31 of C2PMSG_35 set to 1 */ 221 ret = psp_wait_for(psp, SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_35), 222 0x80000000, 0x80000000, false); 223 if (ret) 224 return ret; 225 226 memset(psp->fw_pri_buf, 0, PSP_1_MEG); 227 228 /* Copy Secure OS binary to PSP memory */ 229 memcpy(psp->fw_pri_buf, psp->sos_start_addr, psp->sos_bin_size); 230 231 /* Provide the PSP secure OS to bootrom */ 232 WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_36, 233 (uint32_t)(psp->fw_pri_mc_addr >> 20)); 234 psp_gfxdrv_command_reg = 2 << 16; 235 WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_35, 236 psp_gfxdrv_command_reg); 237 238 /* there might be handshake issue with hardware which needs delay */ 239 mdelay(20); 240 ret = psp_wait_for(psp, SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_81), 241 RREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_81), 242 0, true); 243 244 return ret; 245 } 246 247 int psp_v3_1_prep_cmd_buf(struct amdgpu_firmware_info *ucode, struct psp_gfx_cmd_resp *cmd) 248 { 249 int ret; 250 uint64_t fw_mem_mc_addr = ucode->mc_addr; 251 252 memset(cmd, 0, sizeof(struct psp_gfx_cmd_resp)); 253 254 cmd->cmd_id = GFX_CMD_ID_LOAD_IP_FW; 255 cmd->cmd.cmd_load_ip_fw.fw_phy_addr_lo = lower_32_bits(fw_mem_mc_addr); 256 cmd->cmd.cmd_load_ip_fw.fw_phy_addr_hi = upper_32_bits(fw_mem_mc_addr); 257 cmd->cmd.cmd_load_ip_fw.fw_size = ucode->ucode_size; 258 259 ret = psp_v3_1_get_fw_type(ucode, &cmd->cmd.cmd_load_ip_fw.fw_type); 260 if (ret) 261 DRM_ERROR("Unknown firmware type\n"); 262 263 return ret; 264 } 265 266 int psp_v3_1_ring_init(struct psp_context *psp, enum psp_ring_type ring_type) 267 { 268 int ret = 0; 269 struct psp_ring *ring; 270 struct amdgpu_device *adev = psp->adev; 271 272 ring = &psp->km_ring; 273 274 ring->ring_type = ring_type; 275 276 /* allocate 4k Page of Local Frame Buffer memory for ring */ 277 ring->ring_size = 0x1000; 278 ret = amdgpu_bo_create_kernel(adev, ring->ring_size, PAGE_SIZE, 279 AMDGPU_GEM_DOMAIN_VRAM, 280 &adev->firmware.rbuf, 281 &ring->ring_mem_mc_addr, 282 (void **)&ring->ring_mem); 283 if (ret) { 284 ring->ring_size = 0; 285 return ret; 286 } 287 288 return 0; 289 } 290 291 int psp_v3_1_ring_create(struct psp_context *psp, enum psp_ring_type ring_type) 292 { 293 int ret = 0; 294 unsigned int psp_ring_reg = 0; 295 struct psp_ring *ring = &psp->km_ring; 296 struct amdgpu_device *adev = psp->adev; 297 298 /* Write low address of the ring to C2PMSG_69 */ 299 psp_ring_reg = lower_32_bits(ring->ring_mem_mc_addr); 300 WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_69, psp_ring_reg); 301 /* Write high address of the ring to C2PMSG_70 */ 302 psp_ring_reg = upper_32_bits(ring->ring_mem_mc_addr); 303 WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_70, psp_ring_reg); 304 /* Write size of ring to C2PMSG_71 */ 305 psp_ring_reg = ring->ring_size; 306 WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_71, psp_ring_reg); 307 /* Write the ring initialization command to C2PMSG_64 */ 308 psp_ring_reg = ring_type; 309 psp_ring_reg = psp_ring_reg << 16; 310 WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_64, psp_ring_reg); 311 312 /* there might be handshake issue with hardware which needs delay */ 313 mdelay(20); 314 315 /* Wait for response flag (bit 31) in C2PMSG_64 */ 316 ret = psp_wait_for(psp, SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_64), 317 0x80000000, 0x8000FFFF, false); 318 319 return ret; 320 } 321 322 int psp_v3_1_ring_stop(struct psp_context *psp, enum psp_ring_type ring_type) 323 { 324 int ret = 0; 325 struct psp_ring *ring; 326 unsigned int psp_ring_reg = 0; 327 struct amdgpu_device *adev = psp->adev; 328 329 ring = &psp->km_ring; 330 331 /* Write the ring destroy command to C2PMSG_64 */ 332 psp_ring_reg = 3 << 16; 333 WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_64, psp_ring_reg); 334 335 /* there might be handshake issue with hardware which needs delay */ 336 mdelay(20); 337 338 /* Wait for response flag (bit 31) in C2PMSG_64 */ 339 ret = psp_wait_for(psp, SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_64), 340 0x80000000, 0x80000000, false); 341 342 return ret; 343 } 344 345 int psp_v3_1_ring_destroy(struct psp_context *psp, enum psp_ring_type ring_type) 346 { 347 int ret = 0; 348 struct psp_ring *ring = &psp->km_ring; 349 struct amdgpu_device *adev = psp->adev; 350 351 ret = psp_v3_1_ring_stop(psp, ring_type); 352 if (ret) 353 DRM_ERROR("Fail to stop psp ring\n"); 354 355 amdgpu_bo_free_kernel(&adev->firmware.rbuf, 356 &ring->ring_mem_mc_addr, 357 (void **)&ring->ring_mem); 358 359 return ret; 360 } 361 362 int psp_v3_1_cmd_submit(struct psp_context *psp, 363 struct amdgpu_firmware_info *ucode, 364 uint64_t cmd_buf_mc_addr, uint64_t fence_mc_addr, 365 int index) 366 { 367 unsigned int psp_write_ptr_reg = 0; 368 struct psp_gfx_rb_frame * write_frame = psp->km_ring.ring_mem; 369 struct psp_ring *ring = &psp->km_ring; 370 struct psp_gfx_rb_frame *ring_buffer_start = ring->ring_mem; 371 struct psp_gfx_rb_frame *ring_buffer_end = ring_buffer_start + 372 ring->ring_size / sizeof(struct psp_gfx_rb_frame) - 1; 373 struct amdgpu_device *adev = psp->adev; 374 uint32_t ring_size_dw = ring->ring_size / 4; 375 uint32_t rb_frame_size_dw = sizeof(struct psp_gfx_rb_frame) / 4; 376 377 /* KM (GPCOM) prepare write pointer */ 378 psp_write_ptr_reg = RREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_67); 379 380 /* Update KM RB frame pointer to new frame */ 381 /* write_frame ptr increments by size of rb_frame in bytes */ 382 /* psp_write_ptr_reg increments by size of rb_frame in DWORDs */ 383 if ((psp_write_ptr_reg % ring_size_dw) == 0) 384 write_frame = ring_buffer_start; 385 else 386 write_frame = ring_buffer_start + (psp_write_ptr_reg / rb_frame_size_dw); 387 /* Check invalid write_frame ptr address */ 388 if ((write_frame < ring_buffer_start) || (ring_buffer_end < write_frame)) { 389 DRM_ERROR("ring_buffer_start = %p; ring_buffer_end = %p; write_frame = %p\n", 390 ring_buffer_start, ring_buffer_end, write_frame); 391 DRM_ERROR("write_frame is pointing to address out of bounds\n"); 392 return -EINVAL; 393 } 394 395 /* Initialize KM RB frame */ 396 memset(write_frame, 0, sizeof(struct psp_gfx_rb_frame)); 397 398 /* Update KM RB frame */ 399 write_frame->cmd_buf_addr_hi = upper_32_bits(cmd_buf_mc_addr); 400 write_frame->cmd_buf_addr_lo = lower_32_bits(cmd_buf_mc_addr); 401 write_frame->fence_addr_hi = upper_32_bits(fence_mc_addr); 402 write_frame->fence_addr_lo = lower_32_bits(fence_mc_addr); 403 write_frame->fence_value = index; 404 405 /* Update the write Pointer in DWORDs */ 406 psp_write_ptr_reg = (psp_write_ptr_reg + rb_frame_size_dw) % ring_size_dw; 407 WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_67, psp_write_ptr_reg); 408 409 return 0; 410 } 411 412 static int 413 psp_v3_1_sram_map(unsigned int *sram_offset, unsigned int *sram_addr_reg_offset, 414 unsigned int *sram_data_reg_offset, 415 enum AMDGPU_UCODE_ID ucode_id) 416 { 417 int ret = 0; 418 419 switch(ucode_id) { 420 /* TODO: needs to confirm */ 421 #if 0 422 case AMDGPU_UCODE_ID_SMC: 423 *sram_offset = 0; 424 *sram_addr_reg_offset = 0; 425 *sram_data_reg_offset = 0; 426 break; 427 #endif 428 429 case AMDGPU_UCODE_ID_CP_CE: 430 *sram_offset = 0x0; 431 *sram_addr_reg_offset = SOC15_REG_OFFSET(GC, 0, mmCP_CE_UCODE_ADDR); 432 *sram_data_reg_offset = SOC15_REG_OFFSET(GC, 0, mmCP_CE_UCODE_DATA); 433 break; 434 435 case AMDGPU_UCODE_ID_CP_PFP: 436 *sram_offset = 0x0; 437 *sram_addr_reg_offset = SOC15_REG_OFFSET(GC, 0, mmCP_PFP_UCODE_ADDR); 438 *sram_data_reg_offset = SOC15_REG_OFFSET(GC, 0, mmCP_PFP_UCODE_DATA); 439 break; 440 441 case AMDGPU_UCODE_ID_CP_ME: 442 *sram_offset = 0x0; 443 *sram_addr_reg_offset = SOC15_REG_OFFSET(GC, 0, mmCP_HYP_ME_UCODE_ADDR); 444 *sram_data_reg_offset = SOC15_REG_OFFSET(GC, 0, mmCP_HYP_ME_UCODE_DATA); 445 break; 446 447 case AMDGPU_UCODE_ID_CP_MEC1: 448 *sram_offset = 0x10000; 449 *sram_addr_reg_offset = SOC15_REG_OFFSET(GC, 0, mmCP_MEC_ME1_UCODE_ADDR); 450 *sram_data_reg_offset = SOC15_REG_OFFSET(GC, 0, mmCP_MEC_ME1_UCODE_DATA); 451 break; 452 453 case AMDGPU_UCODE_ID_CP_MEC2: 454 *sram_offset = 0x10000; 455 *sram_addr_reg_offset = SOC15_REG_OFFSET(GC, 0, mmCP_HYP_MEC2_UCODE_ADDR); 456 *sram_data_reg_offset = SOC15_REG_OFFSET(GC, 0, mmCP_HYP_MEC2_UCODE_DATA); 457 break; 458 459 case AMDGPU_UCODE_ID_RLC_G: 460 *sram_offset = 0x2000; 461 *sram_addr_reg_offset = SOC15_REG_OFFSET(GC, 0, mmRLC_GPM_UCODE_ADDR); 462 *sram_data_reg_offset = SOC15_REG_OFFSET(GC, 0, mmRLC_GPM_UCODE_DATA); 463 break; 464 465 case AMDGPU_UCODE_ID_SDMA0: 466 *sram_offset = 0x0; 467 *sram_addr_reg_offset = SOC15_REG_OFFSET(SDMA0, 0, mmSDMA0_UCODE_ADDR); 468 *sram_data_reg_offset = SOC15_REG_OFFSET(SDMA0, 0, mmSDMA0_UCODE_DATA); 469 break; 470 471 /* TODO: needs to confirm */ 472 #if 0 473 case AMDGPU_UCODE_ID_SDMA1: 474 *sram_offset = ; 475 *sram_addr_reg_offset = ; 476 break; 477 478 case AMDGPU_UCODE_ID_UVD: 479 *sram_offset = ; 480 *sram_addr_reg_offset = ; 481 break; 482 483 case AMDGPU_UCODE_ID_VCE: 484 *sram_offset = ; 485 *sram_addr_reg_offset = ; 486 break; 487 #endif 488 489 case AMDGPU_UCODE_ID_MAXIMUM: 490 default: 491 ret = -EINVAL; 492 break; 493 } 494 495 return ret; 496 } 497 498 bool psp_v3_1_compare_sram_data(struct psp_context *psp, 499 struct amdgpu_firmware_info *ucode, 500 enum AMDGPU_UCODE_ID ucode_type) 501 { 502 int err = 0; 503 unsigned int fw_sram_reg_val = 0; 504 unsigned int fw_sram_addr_reg_offset = 0; 505 unsigned int fw_sram_data_reg_offset = 0; 506 unsigned int ucode_size; 507 uint32_t *ucode_mem = NULL; 508 struct amdgpu_device *adev = psp->adev; 509 510 err = psp_v3_1_sram_map(&fw_sram_reg_val, &fw_sram_addr_reg_offset, 511 &fw_sram_data_reg_offset, ucode_type); 512 if (err) 513 return false; 514 515 WREG32(fw_sram_addr_reg_offset, fw_sram_reg_val); 516 517 ucode_size = ucode->ucode_size; 518 ucode_mem = (uint32_t *)ucode->kaddr; 519 while (ucode_size) { 520 fw_sram_reg_val = RREG32(fw_sram_data_reg_offset); 521 522 if (*ucode_mem != fw_sram_reg_val) 523 return false; 524 525 ucode_mem++; 526 /* 4 bytes */ 527 ucode_size -= 4; 528 } 529 530 return true; 531 } 532 533 bool psp_v3_1_smu_reload_quirk(struct psp_context *psp) 534 { 535 struct amdgpu_device *adev = psp->adev; 536 uint32_t reg; 537 538 reg = smnMP1_FIRMWARE_FLAGS | 0x03b00000; 539 WREG32_SOC15(NBIO, 0, mmPCIE_INDEX2, reg); 540 reg = RREG32_SOC15(NBIO, 0, mmPCIE_DATA2); 541 return (reg & MP1_FIRMWARE_FLAGS__INTERRUPTS_ENABLED_MASK) ? true : false; 542 } 543 544 int psp_v3_1_mode1_reset(struct psp_context *psp) 545 { 546 int ret; 547 uint32_t offset; 548 struct amdgpu_device *adev = psp->adev; 549 550 offset = SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_64); 551 552 ret = psp_wait_for(psp, offset, 0x80000000, 0x8000FFFF, false); 553 554 if (ret) { 555 DRM_INFO("psp is not working correctly before mode1 reset!\n"); 556 return -EINVAL; 557 } 558 559 /*send the mode 1 reset command*/ 560 WREG32(offset, 0x70000); 561 562 mdelay(1000); 563 564 offset = SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_33); 565 566 ret = psp_wait_for(psp, offset, 0x80000000, 0x80000000, false); 567 568 if (ret) { 569 DRM_INFO("psp mode 1 reset failed!\n"); 570 return -EINVAL; 571 } 572 573 DRM_INFO("psp mode1 reset succeed \n"); 574 575 return 0; 576 } 577