drivers/gpu/drm/amd/amdgpu/amdgpu_device.c

   1 /*
   2  * Copyright 2008 Advanced Micro Devices, Inc.
   3  * Copyright 2008 Red Hat Inc.
   4  * Copyright 2009 Jerome Glisse.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the "Software"),
   8  * to deal in the Software without restriction, including without limitation
   9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  10  * and/or sell copies of the Software, and to permit persons to whom the
  11  * Software is furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included in
  14  * all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  19  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  20  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  21  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  22  * OTHER DEALINGS IN THE SOFTWARE.
  23  *
  24  * Authors: Dave Airlie
  25  *          Alex Deucher
  26  *          Jerome Glisse
  27  */
  28 #include <linux/power_supply.h>
  29 #include <linux/kthread.h>
  30 #include <linux/console.h>
  31 #include <linux/slab.h>
  32 #include <drm/drmP.h>
  33 #include <drm/drm_crtc_helper.h>
  34 #include <drm/drm_atomic_helper.h>
  35 #include <drm/amdgpu_drm.h>
  36 #include <linux/vgaarb.h>
  37 #include <linux/vga_switcheroo.h>
  38 #include <linux/efi.h>
  39 #include "amdgpu.h"
  40 #include "amdgpu_trace.h"
  41 #include "amdgpu_i2c.h"
  42 #include "atom.h"
  43 #include "amdgpu_atombios.h"
  44 #include "amdgpu_atomfirmware.h"
  45 #include "amd_pcie.h"
  46 #ifdef CONFIG_DRM_AMDGPU_SI
  47 #include "si.h"
  48 #endif
  49 #ifdef CONFIG_DRM_AMDGPU_CIK
  50 #include "cik.h"
  51 #endif
  52 #include "vi.h"
  53 #include "soc15.h"
  54 #include "bif/bif_4_1_d.h"
  55 #include <linux/pci.h>
  56 #include <linux/firmware.h>
  57 #include "amdgpu_vf_error.h"
  58
  59 #include "amdgpu_amdkfd.h"
  60 #include "amdgpu_pm.h"
  61
  62 #include "amdgpu_xgmi.h"
  63
  64 MODULE_FIRMWARE("amdgpu/vega10_gpu_info.bin");
  65 MODULE_FIRMWARE("amdgpu/vega12_gpu_info.bin");
  66 MODULE_FIRMWARE("amdgpu/raven_gpu_info.bin");
  67 MODULE_FIRMWARE("amdgpu/picasso_gpu_info.bin");
  68 MODULE_FIRMWARE("amdgpu/raven2_gpu_info.bin");
  69
  70 #define AMDGPU_RESUME_MS                2000
  71
  72 static const char *amdgpu_asic_name[] = {
  73         "TAHITI",
  74         "PITCAIRN",
  75         "VERDE",
  76         "OLAND",
  77         "HAINAN",
  78         "BONAIRE",
  79         "KAVERI",
  80         "KABINI",
  81         "HAWAII",
  82         "MULLINS",
  83         "TOPAZ",
  84         "TONGA",
  85         "FIJI",
  86         "CARRIZO",
  87         "STONEY",
  88         "POLARIS10",
  89         "POLARIS11",
  90         "POLARIS12",
  91         "VEGAM",
  92         "VEGA10",
  93         "VEGA12",
  94         "VEGA20",
  95         "RAVEN",
  96         "LAST",
  97 };
  98
  99 static void amdgpu_device_get_pcie_info(struct amdgpu_device *adev);
 100
 101 /**
 102  * amdgpu_device_is_px - Is the device is a dGPU with HG/PX power control
 103  *
 104  * @dev: drm_device pointer
 105  *
 106  * Returns true if the device is a dGPU with HG/PX power control,
 107  * otherwise return false.
 108  */
 109 bool amdgpu_device_is_px(struct drm_device *dev)
 110 {
 111         struct amdgpu_device *adev = dev->dev_private;
 112
 113         if (adev->flags & AMD_IS_PX)
 114                 return true;
 115         return false;
 116 }
 117
 118 /*
 119  * MMIO register access helper functions.
 120  */
 121 /**
 122  * amdgpu_mm_rreg - read a memory mapped IO register
 123  *
 124  * @adev: amdgpu_device pointer
 125  * @reg: dword aligned register offset
 126  * @acc_flags: access flags which require special behavior
 127  *
 128  * Returns the 32 bit value from the offset specified.
 129  */
 130 uint32_t amdgpu_mm_rreg(struct amdgpu_device *adev, uint32_t reg,
 131                         uint32_t acc_flags)
 132 {
 133         uint32_t ret;
 134
 135         if (!(acc_flags & AMDGPU_REGS_NO_KIQ) && amdgpu_sriov_runtime(adev))
 136                 return amdgpu_virt_kiq_rreg(adev, reg);
 137
 138         if ((reg * 4) < adev->rmmio_size && !(acc_flags & AMDGPU_REGS_IDX))
 139                 ret = readl(((void __iomem *)adev->rmmio) + (reg * 4));
 140         else {
 141                 unsigned long flags;
 142
 143                 spin_lock_irqsave(&adev->mmio_idx_lock, flags);
 144                 writel((reg * 4), ((void __iomem *)adev->rmmio) + (mmMM_INDEX * 4));
 145                 ret = readl(((void __iomem *)adev->rmmio) + (mmMM_DATA * 4));
 146                 spin_unlock_irqrestore(&adev->mmio_idx_lock, flags);
 147         }
 148         trace_amdgpu_mm_rreg(adev->pdev->device, reg, ret);
 149         return ret;
 150 }
 151
 152 /*
 153  * MMIO register read with bytes helper functions
 154  * @offset:bytes offset from MMIO start
 155  *
 156 */
 157
 158 /**
 159  * amdgpu_mm_rreg8 - read a memory mapped IO register
 160  *
 161  * @adev: amdgpu_device pointer
 162  * @offset: byte aligned register offset
 163  *
 164  * Returns the 8 bit value from the offset specified.
 165  */
 166 uint8_t amdgpu_mm_rreg8(struct amdgpu_device *adev, uint32_t offset) {
 167         if (offset < adev->rmmio_size)
 168                 return (readb(adev->rmmio + offset));
 169         BUG();
 170 }
 171
 172 /*
 173  * MMIO register write with bytes helper functions
 174  * @offset:bytes offset from MMIO start
 175  * @value: the value want to be written to the register
 176  *
 177 */
 178 /**
 179  * amdgpu_mm_wreg8 - read a memory mapped IO register
 180  *
 181  * @adev: amdgpu_device pointer
 182  * @offset: byte aligned register offset
 183  * @value: 8 bit value to write
 184  *
 185  * Writes the value specified to the offset specified.
 186  */
 187 void amdgpu_mm_wreg8(struct amdgpu_device *adev, uint32_t offset, uint8_t value) {
 188         if (offset < adev->rmmio_size)
 189                 writeb(value, adev->rmmio + offset);
 190         else
 191                 BUG();
 192 }
 193
 194 /**
 195  * amdgpu_mm_wreg - write to a memory mapped IO register
 196  *
 197  * @adev: amdgpu_device pointer
 198  * @reg: dword aligned register offset
 199  * @v: 32 bit value to write to the register
 200  * @acc_flags: access flags which require special behavior
 201  *
 202  * Writes the value specified to the offset specified.
 203  */
 204 void amdgpu_mm_wreg(struct amdgpu_device *adev, uint32_t reg, uint32_t v,
 205                     uint32_t acc_flags)
 206 {
 207         trace_amdgpu_mm_wreg(adev->pdev->device, reg, v);
 208
 209         if (adev->asic_type >= CHIP_VEGA10 && reg == 0) {
 210                 adev->last_mm_index = v;
 211         }
 212
 213         if (!(acc_flags & AMDGPU_REGS_NO_KIQ) && amdgpu_sriov_runtime(adev))
 214                 return amdgpu_virt_kiq_wreg(adev, reg, v);
 215
 216         if ((reg * 4) < adev->rmmio_size && !(acc_flags & AMDGPU_REGS_IDX))
 217                 writel(v, ((void __iomem *)adev->rmmio) + (reg * 4));
 218         else {
 219                 unsigned long flags;
 220
 221                 spin_lock_irqsave(&adev->mmio_idx_lock, flags);
 222                 writel((reg * 4), ((void __iomem *)adev->rmmio) + (mmMM_INDEX * 4));
 223                 writel(v, ((void __iomem *)adev->rmmio) + (mmMM_DATA * 4));
 224                 spin_unlock_irqrestore(&adev->mmio_idx_lock, flags);
 225         }
 226
 227         if (adev->asic_type >= CHIP_VEGA10 && reg == 1 && adev->last_mm_index == 0x5702C) {
 228                 udelay(500);
 229         }
 230 }
 231
 232 /**
 233  * amdgpu_io_rreg - read an IO register
 234  *
 235  * @adev: amdgpu_device pointer
 236  * @reg: dword aligned register offset
 237  *
 238  * Returns the 32 bit value from the offset specified.
 239  */
 240 u32 amdgpu_io_rreg(struct amdgpu_device *adev, u32 reg)
 241 {
 242         if ((reg * 4) < adev->rio_mem_size)
 243                 return ioread32(adev->rio_mem + (reg * 4));
 244         else {
 245                 iowrite32((reg * 4), adev->rio_mem + (mmMM_INDEX * 4));
 246                 return ioread32(adev->rio_mem + (mmMM_DATA * 4));
 247         }
 248 }
 249
 250 /**
 251  * amdgpu_io_wreg - write to an IO register
 252  *
 253  * @adev: amdgpu_device pointer
 254  * @reg: dword aligned register offset
 255  * @v: 32 bit value to write to the register
 256  *
 257  * Writes the value specified to the offset specified.
 258  */
 259 void amdgpu_io_wreg(struct amdgpu_device *adev, u32 reg, u32 v)
 260 {
 261         if (adev->asic_type >= CHIP_VEGA10 && reg == 0) {
 262                 adev->last_mm_index = v;
 263         }
 264
 265         if ((reg * 4) < adev->rio_mem_size)
 266                 iowrite32(v, adev->rio_mem + (reg * 4));
 267         else {
 268                 iowrite32((reg * 4), adev->rio_mem + (mmMM_INDEX * 4));
 269                 iowrite32(v, adev->rio_mem + (mmMM_DATA * 4));
 270         }
 271
 272         if (adev->asic_type >= CHIP_VEGA10 && reg == 1 && adev->last_mm_index == 0x5702C) {
 273                 udelay(500);
 274         }
 275 }
 276
 277 /**
 278  * amdgpu_mm_rdoorbell - read a doorbell dword
 279  *
 280  * @adev: amdgpu_device pointer
 281  * @index: doorbell index
 282  *
 283  * Returns the value in the doorbell aperture at the
 284  * requested doorbell index (CIK).
 285  */
 286 u32 amdgpu_mm_rdoorbell(struct amdgpu_device *adev, u32 index)
 287 {
 288         if (index < adev->doorbell.num_doorbells) {
 289                 return readl(adev->doorbell.ptr + index);
 290         } else {
 291                 DRM_ERROR("reading beyond doorbell aperture: 0x%08x!\n", index);
 292                 return 0;
 293         }
 294 }
 295
 296 /**
 297  * amdgpu_mm_wdoorbell - write a doorbell dword
 298  *
 299  * @adev: amdgpu_device pointer
 300  * @index: doorbell index
 301  * @v: value to write
 302  *
 303  * Writes @v to the doorbell aperture at the
 304  * requested doorbell index (CIK).
 305  */
 306 void amdgpu_mm_wdoorbell(struct amdgpu_device *adev, u32 index, u32 v)
 307 {
 308         if (index < adev->doorbell.num_doorbells) {
 309                 writel(v, adev->doorbell.ptr + index);
 310         } else {
 311                 DRM_ERROR("writing beyond doorbell aperture: 0x%08x!\n", index);
 312         }
 313 }
 314
 315 /**
 316  * amdgpu_mm_rdoorbell64 - read a doorbell Qword
 317  *
 318  * @adev: amdgpu_device pointer
 319  * @index: doorbell index
 320  *
 321  * Returns the value in the doorbell aperture at the
 322  * requested doorbell index (VEGA10+).
 323  */
 324 u64 amdgpu_mm_rdoorbell64(struct amdgpu_device *adev, u32 index)
 325 {
 326         if (index < adev->doorbell.num_doorbells) {
 327                 return atomic64_read((atomic64_t *)(adev->doorbell.ptr + index));
 328         } else {
 329                 DRM_ERROR("reading beyond doorbell aperture: 0x%08x!\n", index);
 330                 return 0;
 331         }
 332 }
 333
 334 /**
 335  * amdgpu_mm_wdoorbell64 - write a doorbell Qword
 336  *
 337  * @adev: amdgpu_device pointer
 338  * @index: doorbell index
 339  * @v: value to write
 340  *
 341  * Writes @v to the doorbell aperture at the
 342  * requested doorbell index (VEGA10+).
 343  */
 344 void amdgpu_mm_wdoorbell64(struct amdgpu_device *adev, u32 index, u64 v)
 345 {
 346         if (index < adev->doorbell.num_doorbells) {
 347                 atomic64_set((atomic64_t *)(adev->doorbell.ptr + index), v);
 348         } else {
 349                 DRM_ERROR("writing beyond doorbell aperture: 0x%08x!\n", index);
 350         }
 351 }
 352
 353 /**
 354  * amdgpu_invalid_rreg - dummy reg read function
 355  *
 356  * @adev: amdgpu device pointer
 357  * @reg: offset of register
 358  *
 359  * Dummy register read function.  Used for register blocks
 360  * that certain asics don't have (all asics).
 361  * Returns the value in the register.
 362  */
 363 static uint32_t amdgpu_invalid_rreg(struct amdgpu_device *adev, uint32_t reg)
 364 {
 365         DRM_ERROR("Invalid callback to read register 0x%04X\n", reg);
 366         BUG();
 367         return 0;
 368 }
 369
 370 /**
 371  * amdgpu_invalid_wreg - dummy reg write function
 372  *
 373  * @adev: amdgpu device pointer
 374  * @reg: offset of register
 375  * @v: value to write to the register
 376  *
 377  * Dummy register read function.  Used for register blocks
 378  * that certain asics don't have (all asics).
 379  */
 380 static void amdgpu_invalid_wreg(struct amdgpu_device *adev, uint32_t reg, uint32_t v)
 381 {
 382         DRM_ERROR("Invalid callback to write register 0x%04X with 0x%08X\n",
 383                   reg, v);
 384         BUG();
 385 }
 386
 387 /**
 388  * amdgpu_block_invalid_rreg - dummy reg read function
 389  *
 390  * @adev: amdgpu device pointer
 391  * @block: offset of instance
 392  * @reg: offset of register
 393  *
 394  * Dummy register read function.  Used for register blocks
 395  * that certain asics don't have (all asics).
 396  * Returns the value in the register.
 397  */
 398 static uint32_t amdgpu_block_invalid_rreg(struct amdgpu_device *adev,
 399                                           uint32_t block, uint32_t reg)
 400 {
 401         DRM_ERROR("Invalid callback to read register 0x%04X in block 0x%04X\n",
 402                   reg, block);
 403         BUG();
 404         return 0;
 405 }
 406
 407 /**
 408  * amdgpu_block_invalid_wreg - dummy reg write function
 409  *
 410  * @adev: amdgpu device pointer
 411  * @block: offset of instance
 412  * @reg: offset of register
 413  * @v: value to write to the register
 414  *
 415  * Dummy register read function.  Used for register blocks
 416  * that certain asics don't have (all asics).
 417  */
 418 static void amdgpu_block_invalid_wreg(struct amdgpu_device *adev,
 419                                       uint32_t block,
 420                                       uint32_t reg, uint32_t v)
 421 {
 422         DRM_ERROR("Invalid block callback to write register 0x%04X in block 0x%04X with 0x%08X\n",
 423                   reg, block, v);
 424         BUG();
 425 }
 426
 427 /**
 428  * amdgpu_device_vram_scratch_init - allocate the VRAM scratch page
 429  *
 430  * @adev: amdgpu device pointer
 431  *
 432  * Allocates a scratch page of VRAM for use by various things in the
 433  * driver.
 434  */
 435 static int amdgpu_device_vram_scratch_init(struct amdgpu_device *adev)
 436 {
 437         return amdgpu_bo_create_kernel(adev, AMDGPU_GPU_PAGE_SIZE,
 438                                        PAGE_SIZE, AMDGPU_GEM_DOMAIN_VRAM,
 439                                        &adev->vram_scratch.robj,
 440                                        &adev->vram_scratch.gpu_addr,
 441                                        (void **)&adev->vram_scratch.ptr);
 442 }
 443
 444 /**
 445  * amdgpu_device_vram_scratch_fini - Free the VRAM scratch page
 446  *
 447  * @adev: amdgpu device pointer
 448  *
 449  * Frees the VRAM scratch page.
 450  */
 451 static void amdgpu_device_vram_scratch_fini(struct amdgpu_device *adev)
 452 {
 453         amdgpu_bo_free_kernel(&adev->vram_scratch.robj, NULL, NULL);
 454 }
 455
 456 /**
 457  * amdgpu_device_program_register_sequence - program an array of registers.
 458  *
 459  * @adev: amdgpu_device pointer
 460  * @registers: pointer to the register array
 461  * @array_size: size of the register array
 462  *
 463  * Programs an array or registers with and and or masks.
 464  * This is a helper for setting golden registers.
 465  */
 466 void amdgpu_device_program_register_sequence(struct amdgpu_device *adev,
 467                                              const u32 *registers,
 468                                              const u32 array_size)
 469 {
 470         u32 tmp, reg, and_mask, or_mask;
 471         int i;
 472
 473         if (array_size % 3)
 474                 return;
 475
 476         for (i = 0; i < array_size; i +=3) {
 477                 reg = registers[i + 0];
 478                 and_mask = registers[i + 1];
 479                 or_mask = registers[i + 2];
 480
 481                 if (and_mask == 0xffffffff) {
 482                         tmp = or_mask;
 483                 } else {
 484                         tmp = RREG32(reg);
 485                         tmp &= ~and_mask;
 486                         tmp |= or_mask;
 487                 }
 488                 WREG32(reg, tmp);
 489         }
 490 }
 491
 492 /**
 493  * amdgpu_device_pci_config_reset - reset the GPU
 494  *
 495  * @adev: amdgpu_device pointer
 496  *
 497  * Resets the GPU using the pci config reset sequence.
 498  * Only applicable to asics prior to vega10.
 499  */
 500 void amdgpu_device_pci_config_reset(struct amdgpu_device *adev)
 501 {
 502         pci_write_config_dword(adev->pdev, 0x7c, AMDGPU_ASIC_RESET_DATA);
 503 }
 504
 505 /*
 506  * GPU doorbell aperture helpers function.
 507  */
 508 /**
 509  * amdgpu_device_doorbell_init - Init doorbell driver information.
 510  *
 511  * @adev: amdgpu_device pointer
 512  *
 513  * Init doorbell driver information (CIK)
 514  * Returns 0 on success, error on failure.
 515  */
 516 static int amdgpu_device_doorbell_init(struct amdgpu_device *adev)
 517 {
 518
 519         /* No doorbell on SI hardware generation */
 520         if (adev->asic_type < CHIP_BONAIRE) {
 521                 adev->doorbell.base = 0;
 522                 adev->doorbell.size = 0;
 523                 adev->doorbell.num_doorbells = 0;
 524                 adev->doorbell.ptr = NULL;
 525                 return 0;
 526         }
 527
 528         if (pci_resource_flags(adev->pdev, 2) & IORESOURCE_UNSET)
 529                 return -EINVAL;
 530
 531         amdgpu_asic_init_doorbell_index(adev);
 532
 533         /* doorbell bar mapping */
 534         adev->doorbell.base = pci_resource_start(adev->pdev, 2);
 535         adev->doorbell.size = pci_resource_len(adev->pdev, 2);
 536
 537         adev->doorbell.num_doorbells = min_t(u32, adev->doorbell.size / sizeof(u32),
 538                                              adev->doorbell_index.max_assignment+1);
 539         if (adev->doorbell.num_doorbells == 0)
 540                 return -EINVAL;
 541
 542         /* For Vega, reserve and map two pages on doorbell BAR since SDMA
 543          * paging queue doorbell use the second page. The
 544          * AMDGPU_DOORBELL64_MAX_ASSIGNMENT definition assumes all the
 545          * doorbells are in the first page. So with paging queue enabled,
 546          * the max num_doorbells should + 1 page (0x400 in dword)
 547          */
 548         if (adev->asic_type >= CHIP_VEGA10)
 549                 adev->doorbell.num_doorbells += 0x400;
 550
 551         adev->doorbell.ptr = ioremap(adev->doorbell.base,
 552                                      adev->doorbell.num_doorbells *
 553                                      sizeof(u32));
 554         if (adev->doorbell.ptr == NULL)
 555                 return -ENOMEM;
 556
 557         return 0;
 558 }
 559
 560 /**
 561  * amdgpu_device_doorbell_fini - Tear down doorbell driver information.
 562  *
 563  * @adev: amdgpu_device pointer
 564  *
 565  * Tear down doorbell driver information (CIK)
 566  */
 567 static void amdgpu_device_doorbell_fini(struct amdgpu_device *adev)
 568 {
 569         iounmap(adev->doorbell.ptr);
 570         adev->doorbell.ptr = NULL;
 571 }
 572
 573
 574
 575 /*
 576  * amdgpu_device_wb_*()
 577  * Writeback is the method by which the GPU updates special pages in memory
 578  * with the status of certain GPU events (fences, ring pointers,etc.).
 579  */
 580
 581 /**
 582  * amdgpu_device_wb_fini - Disable Writeback and free memory
 583  *
 584  * @adev: amdgpu_device pointer
 585  *
 586  * Disables Writeback and frees the Writeback memory (all asics).
 587  * Used at driver shutdown.
 588  */
 589 static void amdgpu_device_wb_fini(struct amdgpu_device *adev)
 590 {
 591         if (adev->wb.wb_obj) {
 592                 amdgpu_bo_free_kernel(&adev->wb.wb_obj,
 593                                       &adev->wb.gpu_addr,
 594                                       (void **)&adev->wb.wb);
 595                 adev->wb.wb_obj = NULL;
 596         }
 597 }
 598
 599 /**
 600  * amdgpu_device_wb_init- Init Writeback driver info and allocate memory
 601  *
 602  * @adev: amdgpu_device pointer
 603  *
 604  * Initializes writeback and allocates writeback memory (all asics).
 605  * Used at driver startup.
 606  * Returns 0 on success or an -error on failure.
 607  */
 608 static int amdgpu_device_wb_init(struct amdgpu_device *adev)
 609 {
 610         int r;
 611
 612         if (adev->wb.wb_obj == NULL) {
 613                 /* AMDGPU_MAX_WB * sizeof(uint32_t) * 8 = AMDGPU_MAX_WB 256bit slots */
 614                 r = amdgpu_bo_create_kernel(adev, AMDGPU_MAX_WB * sizeof(uint32_t) * 8,
 615                                             PAGE_SIZE, AMDGPU_GEM_DOMAIN_GTT,
 616                                             &adev->wb.wb_obj, &adev->wb.gpu_addr,
 617                                             (void **)&adev->wb.wb);
 618                 if (r) {
 619                         dev_warn(adev->dev, "(%d) create WB bo failed\n", r);
 620                         return r;
 621                 }
 622
 623                 adev->wb.num_wb = AMDGPU_MAX_WB;
 624                 memset(&adev->wb.used, 0, sizeof(adev->wb.used));
 625
 626                 /* clear wb memory */
 627                 memset((char *)adev->wb.wb, 0, AMDGPU_MAX_WB * sizeof(uint32_t) * 8);
 628         }
 629
 630         return 0;
 631 }
 632
 633 /**
 634  * amdgpu_device_wb_get - Allocate a wb entry
 635  *
 636  * @adev: amdgpu_device pointer
 637  * @wb: wb index
 638  *
 639  * Allocate a wb slot for use by the driver (all asics).
 640  * Returns 0 on success or -EINVAL on failure.
 641  */
 642 int amdgpu_device_wb_get(struct amdgpu_device *adev, u32 *wb)
 643 {
 644         unsigned long offset = find_first_zero_bit(adev->wb.used, adev->wb.num_wb);
 645
 646         if (offset < adev->wb.num_wb) {
 647                 __set_bit(offset, adev->wb.used);
 648                 *wb = offset << 3; /* convert to dw offset */
 649                 return 0;
 650         } else {
 651                 return -EINVAL;
 652         }
 653 }
 654
 655 /**
 656  * amdgpu_device_wb_free - Free a wb entry
 657  *
 658  * @adev: amdgpu_device pointer
 659  * @wb: wb index
 660  *
 661  * Free a wb slot allocated for use by the driver (all asics)
 662  */
 663 void amdgpu_device_wb_free(struct amdgpu_device *adev, u32 wb)
 664 {
 665         wb >>= 3;
 666         if (wb < adev->wb.num_wb)
 667                 __clear_bit(wb, adev->wb.used);
 668 }
 669
 670 /**
 671  * amdgpu_device_resize_fb_bar - try to resize FB BAR
 672  *
 673  * @adev: amdgpu_device pointer
 674  *
 675  * Try to resize FB BAR to make all VRAM CPU accessible. We try very hard not
 676  * to fail, but if any of the BARs is not accessible after the size we abort
 677  * driver loading by returning -ENODEV.
 678  */
 679 int amdgpu_device_resize_fb_bar(struct amdgpu_device *adev)
 680 {
 681         u64 space_needed = roundup_pow_of_two(adev->gmc.real_vram_size);
 682         u32 rbar_size = order_base_2(((space_needed >> 20) | 1)) - 1;
 683         struct pci_bus *root;
 684         struct resource *res;
 685         unsigned i;
 686         u16 cmd;
 687         int r;
 688
 689         /* Bypass for VF */
 690         if (amdgpu_sriov_vf(adev))
 691                 return 0;
 692
 693         /* Check if the root BUS has 64bit memory resources */
 694         root = adev->pdev->bus;
 695         while (root->parent)
 696                 root = root->parent;
 697
 698         pci_bus_for_each_resource(root, res, i) {
 699                 if (res && res->flags & (IORESOURCE_MEM | IORESOURCE_MEM_64) &&
 700                     res->start > 0x100000000ull)
 701                         break;
 702         }
 703
 704         /* Trying to resize is pointless without a root hub window above 4GB */
 705         if (!res)
 706                 return 0;
 707
 708         /* Disable memory decoding while we change the BAR addresses and size */
 709         pci_read_config_word(adev->pdev, PCI_COMMAND, &cmd);
 710         pci_write_config_word(adev->pdev, PCI_COMMAND,
 711                               cmd & ~PCI_COMMAND_MEMORY);
 712
 713         /* Free the VRAM and doorbell BAR, we most likely need to move both. */
 714         amdgpu_device_doorbell_fini(adev);
 715         if (adev->asic_type >= CHIP_BONAIRE)
 716                 pci_release_resource(adev->pdev, 2);
 717
 718         pci_release_resource(adev->pdev, 0);
 719
 720         r = pci_resize_resource(adev->pdev, 0, rbar_size);
 721         if (r == -ENOSPC)
 722                 DRM_INFO("Not enough PCI address space for a large BAR.");
 723         else if (r && r != -ENOTSUPP)
 724                 DRM_ERROR("Problem resizing BAR0 (%d).", r);
 725
 726         pci_assign_unassigned_bus_resources(adev->pdev->bus);
 727
 728         /* When the doorbell or fb BAR isn't available we have no chance of
 729          * using the device.
 730          */
 731         r = amdgpu_device_doorbell_init(adev);
 732         if (r || (pci_resource_flags(adev->pdev, 0) & IORESOURCE_UNSET))
 733                 return -ENODEV;
 734
 735         pci_write_config_word(adev->pdev, PCI_COMMAND, cmd);
 736
 737         return 0;
 738 }
 739
 740 /*
 741  * GPU helpers function.
 742  */
 743 /**
 744  * amdgpu_device_need_post - check if the hw need post or not
 745  *
 746  * @adev: amdgpu_device pointer
 747  *
 748  * Check if the asic has been initialized (all asics) at driver startup
 749  * or post is needed if  hw reset is performed.
 750  * Returns true if need or false if not.
 751  */
 752 bool amdgpu_device_need_post(struct amdgpu_device *adev)
 753 {
 754         uint32_t reg;
 755
 756         if (amdgpu_sriov_vf(adev))
 757                 return false;
 758
 759         if (amdgpu_passthrough(adev)) {
 760                 /* for FIJI: In whole GPU pass-through virtualization case, after VM reboot
 761                  * some old smc fw still need driver do vPost otherwise gpu hang, while
 762                  * those smc fw version above 22.15 doesn't have this flaw, so we force
 763                  * vpost executed for smc version below 22.15
 764                  */
 765                 if (adev->asic_type == CHIP_FIJI) {
 766                         int err;
 767                         uint32_t fw_ver;
 768                         err = request_firmware(&adev->pm.fw, "amdgpu/fiji_smc.bin", adev->dev);
 769                         /* force vPost if error occured */
 770                         if (err)
 771                                 return true;
 772
 773                         fw_ver = *((uint32_t *)adev->pm.fw->data + 69);
 774                         if (fw_ver < 0x00160e00)
 775                                 return true;
 776                 }
 777         }
 778
 779         if (adev->has_hw_reset) {
 780                 adev->has_hw_reset = false;
 781                 return true;
 782         }
 783
 784         /* bios scratch used on CIK+ */
 785         if (adev->asic_type >= CHIP_BONAIRE)
 786                 return amdgpu_atombios_scratch_need_asic_init(adev);
 787
 788         /* check MEM_SIZE for older asics */
 789         reg = amdgpu_asic_get_config_memsize(adev);
 790
 791         if ((reg != 0) && (reg != 0xffffffff))
 792                 return false;
 793
 794         return true;
 795 }
 796
 797 /* if we get transitioned to only one device, take VGA back */
 798 /**
 799  * amdgpu_device_vga_set_decode - enable/disable vga decode
 800  *
 801  * @cookie: amdgpu_device pointer
 802  * @state: enable/disable vga decode
 803  *
 804  * Enable/disable vga decode (all asics).
 805  * Returns VGA resource flags.
 806  */
 807 static unsigned int amdgpu_device_vga_set_decode(void *cookie, bool state)
 808 {
 809         struct amdgpu_device *adev = cookie;
 810         amdgpu_asic_set_vga_state(adev, state);
 811         if (state)
 812                 return VGA_RSRC_LEGACY_IO | VGA_RSRC_LEGACY_MEM |
 813                        VGA_RSRC_NORMAL_IO | VGA_RSRC_NORMAL_MEM;
 814         else
 815                 return VGA_RSRC_NORMAL_IO | VGA_RSRC_NORMAL_MEM;
 816 }
 817
 818 /**
 819  * amdgpu_device_check_block_size - validate the vm block size
 820  *
 821  * @adev: amdgpu_device pointer
 822  *
 823  * Validates the vm block size specified via module parameter.
 824  * The vm block size defines number of bits in page table versus page directory,
 825  * a page is 4KB so we have 12 bits offset, minimum 9 bits in the
 826  * page table and the remaining bits are in the page directory.
 827  */
 828 static void amdgpu_device_check_block_size(struct amdgpu_device *adev)
 829 {
 830         /* defines number of bits in page table versus page directory,
 831          * a page is 4KB so we have 12 bits offset, minimum 9 bits in the
 832          * page table and the remaining bits are in the page directory */
 833         if (amdgpu_vm_block_size == -1)
 834                 return;
 835
 836         if (amdgpu_vm_block_size < 9) {
 837                 dev_warn(adev->dev, "VM page table size (%d) too small\n",
 838                          amdgpu_vm_block_size);
 839                 amdgpu_vm_block_size = -1;
 840         }
 841 }
 842
 843 /**
 844  * amdgpu_device_check_vm_size - validate the vm size
 845  *
 846  * @adev: amdgpu_device pointer
 847  *
 848  * Validates the vm size in GB specified via module parameter.
 849  * The VM size is the size of the GPU virtual memory space in GB.
 850  */
 851 static void amdgpu_device_check_vm_size(struct amdgpu_device *adev)
 852 {
 853         /* no need to check the default value */
 854         if (amdgpu_vm_size == -1)
 855                 return;
 856
 857         if (amdgpu_vm_size < 1) {
 858                 dev_warn(adev->dev, "VM size (%d) too small, min is 1GB\n",
 859                          amdgpu_vm_size);
 860                 amdgpu_vm_size = -1;
 861         }
 862 }
 863
 864 static void amdgpu_device_check_smu_prv_buffer_size(struct amdgpu_device *adev)
 865 {
 866         struct sysinfo si;
 867         bool is_os_64 = (sizeof(void *) == 8) ? true : false;
 868         uint64_t total_memory;
 869         uint64_t dram_size_seven_GB = 0x1B8000000;
 870         uint64_t dram_size_three_GB = 0xB8000000;
 871
 872         if (amdgpu_smu_memory_pool_size == 0)
 873                 return;
 874
 875         if (!is_os_64) {
 876                 DRM_WARN("Not 64-bit OS, feature not supported\n");
 877                 goto def_value;
 878         }
 879         si_meminfo(&si);
 880         total_memory = (uint64_t)si.totalram * si.mem_unit;
 881
 882         if ((amdgpu_smu_memory_pool_size == 1) ||
 883                 (amdgpu_smu_memory_pool_size == 2)) {
 884                 if (total_memory < dram_size_three_GB)
 885                         goto def_value1;
 886         } else if ((amdgpu_smu_memory_pool_size == 4) ||
 887                 (amdgpu_smu_memory_pool_size == 8)) {
 888                 if (total_memory < dram_size_seven_GB)
 889                         goto def_value1;
 890         } else {
 891                 DRM_WARN("Smu memory pool size not supported\n");
 892                 goto def_value;
 893         }
 894         adev->pm.smu_prv_buffer_size = amdgpu_smu_memory_pool_size << 28;
 895
 896         return;
 897
 898 def_value1:
 899         DRM_WARN("No enough system memory\n");
 900 def_value:
 901         adev->pm.smu_prv_buffer_size = 0;
 902 }
 903
 904 /**
 905  * amdgpu_device_check_arguments - validate module params
 906  *
 907  * @adev: amdgpu_device pointer
 908  *
 909  * Validates certain module parameters and updates
 910  * the associated values used by the driver (all asics).
 911  */
 912 static void amdgpu_device_check_arguments(struct amdgpu_device *adev)
 913 {
 914         if (amdgpu_sched_jobs < 4) {
 915                 dev_warn(adev->dev, "sched jobs (%d) must be at least 4\n",
 916                          amdgpu_sched_jobs);
 917                 amdgpu_sched_jobs = 4;
 918         } else if (!is_power_of_2(amdgpu_sched_jobs)){
 919                 dev_warn(adev->dev, "sched jobs (%d) must be a power of 2\n",
 920                          amdgpu_sched_jobs);
 921                 amdgpu_sched_jobs = roundup_pow_of_two(amdgpu_sched_jobs);
 922         }
 923
 924         if (amdgpu_gart_size != -1 && amdgpu_gart_size < 32) {
 925                 /* gart size must be greater or equal to 32M */
 926                 dev_warn(adev->dev, "gart size (%d) too small\n",
 927                          amdgpu_gart_size);
 928                 amdgpu_gart_size = -1;
 929         }
 930
 931         if (amdgpu_gtt_size != -1 && amdgpu_gtt_size < 32) {
 932                 /* gtt size must be greater or equal to 32M */
 933                 dev_warn(adev->dev, "gtt size (%d) too small\n",
 934                                  amdgpu_gtt_size);
 935                 amdgpu_gtt_size = -1;
 936         }
 937
 938         /* valid range is between 4 and 9 inclusive */
 939         if (amdgpu_vm_fragment_size != -1 &&
 940             (amdgpu_vm_fragment_size > 9 || amdgpu_vm_fragment_size < 4)) {
 941                 dev_warn(adev->dev, "valid range is between 4 and 9\n");
 942                 amdgpu_vm_fragment_size = -1;
 943         }
 944
 945         amdgpu_device_check_smu_prv_buffer_size(adev);
 946
 947         amdgpu_device_check_vm_size(adev);
 948
 949         amdgpu_device_check_block_size(adev);
 950
 951         if (amdgpu_vram_page_split != -1 && (amdgpu_vram_page_split < 16 ||
 952             !is_power_of_2(amdgpu_vram_page_split))) {
 953                 dev_warn(adev->dev, "invalid VRAM page split (%d)\n",
 954                          amdgpu_vram_page_split);
 955                 amdgpu_vram_page_split = 1024;
 956         }
 957
 958         if (amdgpu_lockup_timeout == 0) {
 959                 dev_warn(adev->dev, "lockup_timeout msut be > 0, adjusting to 10000\n");
 960                 amdgpu_lockup_timeout = 10000;
 961         }
 962
 963         adev->firmware.load_type = amdgpu_ucode_get_load_type(adev, amdgpu_fw_load_type);
 964 }
 965
 966 /**
 967  * amdgpu_switcheroo_set_state - set switcheroo state
 968  *
 969  * @pdev: pci dev pointer
 970  * @state: vga_switcheroo state
 971  *
 972  * Callback for the switcheroo driver.  Suspends or resumes the
 973  * the asics before or after it is powered up using ACPI methods.
 974  */
 975 static void amdgpu_switcheroo_set_state(struct pci_dev *pdev, enum vga_switcheroo_state state)
 976 {
 977         struct drm_device *dev = pci_get_drvdata(pdev);
 978
 979         if (amdgpu_device_is_px(dev) && state == VGA_SWITCHEROO_OFF)
 980                 return;
 981
 982         if (state == VGA_SWITCHEROO_ON) {
 983                 pr_info("amdgpu: switched on\n");
 984                 /* don't suspend or resume card normally */
 985                 dev->switch_power_state = DRM_SWITCH_POWER_CHANGING;
 986
 987                 amdgpu_device_resume(dev, true, true);
 988
 989                 dev->switch_power_state = DRM_SWITCH_POWER_ON;
 990                 drm_kms_helper_poll_enable(dev);
 991         } else {
 992                 pr_info("amdgpu: switched off\n");
 993                 drm_kms_helper_poll_disable(dev);
 994                 dev->switch_power_state = DRM_SWITCH_POWER_CHANGING;
 995                 amdgpu_device_suspend(dev, true, true);
 996                 dev->switch_power_state = DRM_SWITCH_POWER_OFF;
 997         }
 998 }
 999
1000 /**
1001  * amdgpu_switcheroo_can_switch - see if switcheroo state can change
1002  *
1003  * @pdev: pci dev pointer
1004  *
1005  * Callback for the switcheroo driver.  Check of the switcheroo
1006  * state can be changed.
1007  * Returns true if the state can be changed, false if not.
1008  */
1009 static bool amdgpu_switcheroo_can_switch(struct pci_dev *pdev)
1010 {
1011         struct drm_device *dev = pci_get_drvdata(pdev);
1012
1013         /*
1014         * FIXME: open_count is protected by drm_global_mutex but that would lead to
1015         * locking inversion with the driver load path. And the access here is
1016         * completely racy anyway. So don't bother with locking for now.
1017         */
1018         return dev->open_count == 0;
1019 }
1020
1021 static const struct vga_switcheroo_client_ops amdgpu_switcheroo_ops = {
1022         .set_gpu_state = amdgpu_switcheroo_set_state,
1023         .reprobe = NULL,
1024         .can_switch = amdgpu_switcheroo_can_switch,
1025 };
1026
1027 /**
1028  * amdgpu_device_ip_set_clockgating_state - set the CG state
1029  *
1030  * @dev: amdgpu_device pointer
1031  * @block_type: Type of hardware IP (SMU, GFX, UVD, etc.)
1032  * @state: clockgating state (gate or ungate)
1033  *
1034  * Sets the requested clockgating state for all instances of
1035  * the hardware IP specified.
1036  * Returns the error code from the last instance.
1037  */
1038 int amdgpu_device_ip_set_clockgating_state(void *dev,
1039                                            enum amd_ip_block_type block_type,
1040                                            enum amd_clockgating_state state)
1041 {
1042         struct amdgpu_device *adev = dev;
1043         int i, r = 0;
1044
1045         for (i = 0; i < adev->num_ip_blocks; i++) {
1046                 if (!adev->ip_blocks[i].status.valid)
1047                         continue;
1048                 if (adev->ip_blocks[i].version->type != block_type)
1049                         continue;
1050                 if (!adev->ip_blocks[i].version->funcs->set_clockgating_state)
1051                         continue;
1052                 r = adev->ip_blocks[i].version->funcs->set_clockgating_state(
1053                         (void *)adev, state);
1054                 if (r)
1055                         DRM_ERROR("set_clockgating_state of IP block <%s> failed %d\n",
1056                                   adev->ip_blocks[i].version->funcs->name, r);
1057         }
1058         return r;
1059 }
1060
1061 /**
1062  * amdgpu_device_ip_set_powergating_state - set the PG state
1063  *
1064  * @dev: amdgpu_device pointer
1065  * @block_type: Type of hardware IP (SMU, GFX, UVD, etc.)
1066  * @state: powergating state (gate or ungate)
1067  *
1068  * Sets the requested powergating state for all instances of
1069  * the hardware IP specified.
1070  * Returns the error code from the last instance.
1071  */
1072 int amdgpu_device_ip_set_powergating_state(void *dev,
1073                                            enum amd_ip_block_type block_type,
1074                                            enum amd_powergating_state state)
1075 {
1076         struct amdgpu_device *adev = dev;
1077         int i, r = 0;
1078
1079         for (i = 0; i < adev->num_ip_blocks; i++) {
1080                 if (!adev->ip_blocks[i].status.valid)
1081                         continue;
1082                 if (adev->ip_blocks[i].version->type != block_type)
1083                         continue;
1084                 if (!adev->ip_blocks[i].version->funcs->set_powergating_state)
1085                         continue;
1086                 r = adev->ip_blocks[i].version->funcs->set_powergating_state(
1087                         (void *)adev, state);
1088                 if (r)
1089                         DRM_ERROR("set_powergating_state of IP block <%s> failed %d\n",
1090                                   adev->ip_blocks[i].version->funcs->name, r);
1091         }
1092         return r;
1093 }
1094
1095 /**
1096  * amdgpu_device_ip_get_clockgating_state - get the CG state
1097  *
1098  * @adev: amdgpu_device pointer
1099  * @flags: clockgating feature flags
1100  *
1101  * Walks the list of IPs on the device and updates the clockgating
1102  * flags for each IP.
1103  * Updates @flags with the feature flags for each hardware IP where
1104  * clockgating is enabled.
1105  */
1106 void amdgpu_device_ip_get_clockgating_state(struct amdgpu_device *adev,
1107                                             u32 *flags)
1108 {
1109         int i;
1110
1111         for (i = 0; i < adev->num_ip_blocks; i++) {
1112                 if (!adev->ip_blocks[i].status.valid)
1113                         continue;
1114                 if (adev->ip_blocks[i].version->funcs->get_clockgating_state)
1115                         adev->ip_blocks[i].version->funcs->get_clockgating_state((void *)adev, flags);
1116         }
1117 }
1118
1119 /**
1120  * amdgpu_device_ip_wait_for_idle - wait for idle
1121  *
1122  * @adev: amdgpu_device pointer
1123  * @block_type: Type of hardware IP (SMU, GFX, UVD, etc.)
1124  *
1125  * Waits for the request hardware IP to be idle.
1126  * Returns 0 for success or a negative error code on failure.
1127  */
1128 int amdgpu_device_ip_wait_for_idle(struct amdgpu_device *adev,
1129                                    enum amd_ip_block_type block_type)
1130 {
1131         int i, r;
1132
1133         for (i = 0; i < adev->num_ip_blocks; i++) {
1134                 if (!adev->ip_blocks[i].status.valid)
1135                         continue;
1136                 if (adev->ip_blocks[i].version->type == block_type) {
1137                         r = adev->ip_blocks[i].version->funcs->wait_for_idle((void *)adev);
1138                         if (r)
1139                                 return r;
1140                         break;
1141                 }
1142         }
1143         return 0;
1144
1145 }
1146
1147 /**
1148  * amdgpu_device_ip_is_idle - is the hardware IP idle
1149  *
1150  * @adev: amdgpu_device pointer
1151  * @block_type: Type of hardware IP (SMU, GFX, UVD, etc.)
1152  *
1153  * Check if the hardware IP is idle or not.
1154  * Returns true if it the IP is idle, false if not.
1155  */
1156 bool amdgpu_device_ip_is_idle(struct amdgpu_device *adev,
1157                               enum amd_ip_block_type block_type)
1158 {
1159         int i;
1160
1161         for (i = 0; i < adev->num_ip_blocks; i++) {
1162                 if (!adev->ip_blocks[i].status.valid)
1163                         continue;
1164                 if (adev->ip_blocks[i].version->type == block_type)
1165                         return adev->ip_blocks[i].version->funcs->is_idle((void *)adev);
1166         }
1167         return true;
1168
1169 }
1170
1171 /**
1172  * amdgpu_device_ip_get_ip_block - get a hw IP pointer
1173  *
1174  * @adev: amdgpu_device pointer
1175  * @type: Type of hardware IP (SMU, GFX, UVD, etc.)
1176  *
1177  * Returns a pointer to the hardware IP block structure
1178  * if it exists for the asic, otherwise NULL.
1179  */
1180 struct amdgpu_ip_block *
1181 amdgpu_device_ip_get_ip_block(struct amdgpu_device *adev,
1182                               enum amd_ip_block_type type)
1183 {
1184         int i;
1185
1186         for (i = 0; i < adev->num_ip_blocks; i++)
1187                 if (adev->ip_blocks[i].version->type == type)
1188                         return &adev->ip_blocks[i];
1189
1190         return NULL;
1191 }
1192
1193 /**
1194  * amdgpu_device_ip_block_version_cmp
1195  *
1196  * @adev: amdgpu_device pointer
1197  * @type: enum amd_ip_block_type
1198  * @major: major version
1199  * @minor: minor version
1200  *
1201  * return 0 if equal or greater
1202  * return 1 if smaller or the ip_block doesn't exist
1203  */
1204 int amdgpu_device_ip_block_version_cmp(struct amdgpu_device *adev,
1205                                        enum amd_ip_block_type type,
1206                                        u32 major, u32 minor)
1207 {
1208         struct amdgpu_ip_block *ip_block = amdgpu_device_ip_get_ip_block(adev, type);
1209
1210         if (ip_block && ((ip_block->version->major > major) ||
1211                         ((ip_block->version->major == major) &&
1212                         (ip_block->version->minor >= minor))))
1213                 return 0;
1214
1215         return 1;
1216 }
1217
1218 /**
1219  * amdgpu_device_ip_block_add
1220  *
1221  * @adev: amdgpu_device pointer
1222  * @ip_block_version: pointer to the IP to add
1223  *
1224  * Adds the IP block driver information to the collection of IPs
1225  * on the asic.
1226  */
1227 int amdgpu_device_ip_block_add(struct amdgpu_device *adev,
1228                                const struct amdgpu_ip_block_version *ip_block_version)
1229 {
1230         if (!ip_block_version)
1231                 return -EINVAL;
1232
1233         DRM_INFO("add ip block number %d <%s>\n", adev->num_ip_blocks,
1234                   ip_block_version->funcs->name);
1235
1236         adev->ip_blocks[adev->num_ip_blocks++].version = ip_block_version;
1237
1238         return 0;
1239 }
1240
1241 /**
1242  * amdgpu_device_enable_virtual_display - enable virtual display feature
1243  *
1244  * @adev: amdgpu_device pointer
1245  *
1246  * Enabled the virtual display feature if the user has enabled it via
1247  * the module parameter virtual_display.  This feature provides a virtual
1248  * display hardware on headless boards or in virtualized environments.
1249  * This function parses and validates the configuration string specified by
1250  * the user and configues the virtual display configuration (number of
1251  * virtual connectors, crtcs, etc.) specified.
1252  */
1253 static void amdgpu_device_enable_virtual_display(struct amdgpu_device *adev)
1254 {
1255         adev->enable_virtual_display = false;
1256
1257         if (amdgpu_virtual_display) {
1258                 struct drm_device *ddev = adev->ddev;
1259                 const char *pci_address_name = pci_name(ddev->pdev);
1260                 char *pciaddstr, *pciaddstr_tmp, *pciaddname_tmp, *pciaddname;
1261
1262                 pciaddstr = kstrdup(amdgpu_virtual_display, GFP_KERNEL);
1263                 pciaddstr_tmp = pciaddstr;
1264                 while ((pciaddname_tmp = strsep(&pciaddstr_tmp, ";"))) {
1265                         pciaddname = strsep(&pciaddname_tmp, ",");
1266                         if (!strcmp("all", pciaddname)
1267                             || !strcmp(pci_address_name, pciaddname)) {
1268                                 long num_crtc;
1269                                 int res = -1;
1270
1271                                 adev->enable_virtual_display = true;
1272
1273                                 if (pciaddname_tmp)
1274                                         res = kstrtol(pciaddname_tmp, 10,
1275                                                       &num_crtc);
1276
1277                                 if (!res) {
1278                                         if (num_crtc < 1)
1279                                                 num_crtc = 1;
1280                                         if (num_crtc > 6)
1281                                                 num_crtc = 6;
1282                                         adev->mode_info.num_crtc = num_crtc;
1283                                 } else {
1284                                         adev->mode_info.num_crtc = 1;
1285                                 }
1286                                 break;
1287                         }
1288                 }
1289
1290                 DRM_INFO("virtual display string:%s, %s:virtual_display:%d, num_crtc:%d\n",
1291                          amdgpu_virtual_display, pci_address_name,
1292                          adev->enable_virtual_display, adev->mode_info.num_crtc);
1293
1294                 kfree(pciaddstr);
1295         }
1296 }
1297
1298 /**
1299  * amdgpu_device_parse_gpu_info_fw - parse gpu info firmware
1300  *
1301  * @adev: amdgpu_device pointer
1302  *
1303  * Parses the asic configuration parameters specified in the gpu info
1304  * firmware and makes them availale to the driver for use in configuring
1305  * the asic.
1306  * Returns 0 on success, -EINVAL on failure.
1307  */
1308 static int amdgpu_device_parse_gpu_info_fw(struct amdgpu_device *adev)
1309 {
1310         const char *chip_name;
1311         char fw_name[30];
1312         int err;
1313         const struct gpu_info_firmware_header_v1_0 *hdr;
1314
1315         adev->firmware.gpu_info_fw = NULL;
1316
1317         switch (adev->asic_type) {
1318         case CHIP_TOPAZ:
1319         case CHIP_TONGA:
1320         case CHIP_FIJI:
1321         case CHIP_POLARIS10:
1322         case CHIP_POLARIS11:
1323         case CHIP_POLARIS12:
1324         case CHIP_VEGAM:
1325         case CHIP_CARRIZO:
1326         case CHIP_STONEY:
1327 #ifdef CONFIG_DRM_AMDGPU_SI
1328         case CHIP_VERDE:
1329         case CHIP_TAHITI:
1330         case CHIP_PITCAIRN:
1331         case CHIP_OLAND:
1332         case CHIP_HAINAN:
1333 #endif
1334 #ifdef CONFIG_DRM_AMDGPU_CIK
1335         case CHIP_BONAIRE:
1336         case CHIP_HAWAII:
1337         case CHIP_KAVERI:
1338         case CHIP_KABINI:
1339         case CHIP_MULLINS:
1340 #endif
1341         case CHIP_VEGA20:
1342         default:
1343                 return 0;
1344         case CHIP_VEGA10:
1345                 chip_name = "vega10";
1346                 break;
1347         case CHIP_VEGA12:
1348                 chip_name = "vega12";
1349                 break;
1350         case CHIP_RAVEN:
1351                 if (adev->rev_id >= 8)
1352                         chip_name = "raven2";
1353                 else if (adev->pdev->device == 0x15d8)
1354                         chip_name = "picasso";
1355                 else
1356                         chip_name = "raven";
1357                 break;
1358         }
1359
1360         snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_gpu_info.bin", chip_name);
1361         err = request_firmware(&adev->firmware.gpu_info_fw, fw_name, adev->dev);
1362         if (err) {
1363                 dev_err(adev->dev,
1364                         "Failed to load gpu_info firmware \"%s\"\n",
1365                         fw_name);
1366                 goto out;
1367         }
1368         err = amdgpu_ucode_validate(adev->firmware.gpu_info_fw);
1369         if (err) {
1370                 dev_err(adev->dev,
1371                         "Failed to validate gpu_info firmware \"%s\"\n",
1372                         fw_name);
1373                 goto out;
1374         }
1375
1376         hdr = (const struct gpu_info_firmware_header_v1_0 *)adev->firmware.gpu_info_fw->data;
1377         amdgpu_ucode_print_gpu_info_hdr(&hdr->header);
1378
1379         switch (hdr->version_major) {
1380         case 1:
1381         {
1382                 const struct gpu_info_firmware_v1_0 *gpu_info_fw =
1383                         (const struct gpu_info_firmware_v1_0 *)(adev->firmware.gpu_info_fw->data +
1384                                                                 le32_to_cpu(hdr->header.ucode_array_offset_bytes));
1385
1386                 adev->gfx.config.max_shader_engines = le32_to_cpu(gpu_info_fw->gc_num_se);
1387                 adev->gfx.config.max_cu_per_sh = le32_to_cpu(gpu_info_fw->gc_num_cu_per_sh);
1388                 adev->gfx.config.max_sh_per_se = le32_to_cpu(gpu_info_fw->gc_num_sh_per_se);
1389                 adev->gfx.config.max_backends_per_se = le32_to_cpu(gpu_info_fw->gc_num_rb_per_se);
1390                 adev->gfx.config.max_texture_channel_caches =
1391                         le32_to_cpu(gpu_info_fw->gc_num_tccs);
1392                 adev->gfx.config.max_gprs = le32_to_cpu(gpu_info_fw->gc_num_gprs);
1393                 adev->gfx.config.max_gs_threads = le32_to_cpu(gpu_info_fw->gc_num_max_gs_thds);
1394                 adev->gfx.config.gs_vgt_table_depth = le32_to_cpu(gpu_info_fw->gc_gs_table_depth);
1395                 adev->gfx.config.gs_prim_buffer_depth = le32_to_cpu(gpu_info_fw->gc_gsprim_buff_depth);
1396                 adev->gfx.config.double_offchip_lds_buf =
1397                         le32_to_cpu(gpu_info_fw->gc_double_offchip_lds_buffer);
1398                 adev->gfx.cu_info.wave_front_size = le32_to_cpu(gpu_info_fw->gc_wave_size);
1399                 adev->gfx.cu_info.max_waves_per_simd =
1400                         le32_to_cpu(gpu_info_fw->gc_max_waves_per_simd);
1401                 adev->gfx.cu_info.max_scratch_slots_per_cu =
1402                         le32_to_cpu(gpu_info_fw->gc_max_scratch_slots_per_cu);
1403                 adev->gfx.cu_info.lds_size = le32_to_cpu(gpu_info_fw->gc_lds_size);
1404                 break;
1405         }
1406         default:
1407                 dev_err(adev->dev,
1408                         "Unsupported gpu_info table %d\n", hdr->header.ucode_version);
1409                 err = -EINVAL;
1410                 goto out;
1411         }
1412 out:
1413         return err;
1414 }
1415
1416 /**
1417  * amdgpu_device_ip_early_init - run early init for hardware IPs
1418  *
1419  * @adev: amdgpu_device pointer
1420  *
1421  * Early initialization pass for hardware IPs.  The hardware IPs that make
1422  * up each asic are discovered each IP's early_init callback is run.  This
1423  * is the first stage in initializing the asic.
1424  * Returns 0 on success, negative error code on failure.
1425  */
1426 static int amdgpu_device_ip_early_init(struct amdgpu_device *adev)
1427 {
1428         int i, r;
1429
1430         amdgpu_device_enable_virtual_display(adev);
1431
1432         switch (adev->asic_type) {
1433         case CHIP_TOPAZ:
1434         case CHIP_TONGA:
1435         case CHIP_FIJI:
1436         case CHIP_POLARIS10:
1437         case CHIP_POLARIS11:
1438         case CHIP_POLARIS12:
1439         case CHIP_VEGAM:
1440         case CHIP_CARRIZO:
1441         case CHIP_STONEY:
1442                 if (adev->asic_type == CHIP_CARRIZO || adev->asic_type == CHIP_STONEY)
1443                         adev->family = AMDGPU_FAMILY_CZ;
1444                 else
1445                         adev->family = AMDGPU_FAMILY_VI;
1446
1447                 r = vi_set_ip_blocks(adev);
1448                 if (r)
1449                         return r;
1450                 break;
1451 #ifdef CONFIG_DRM_AMDGPU_SI
1452         case CHIP_VERDE:
1453         case CHIP_TAHITI:
1454         case CHIP_PITCAIRN:
1455         case CHIP_OLAND:
1456         case CHIP_HAINAN:
1457                 adev->family = AMDGPU_FAMILY_SI;
1458                 r = si_set_ip_blocks(adev);
1459                 if (r)
1460                         return r;
1461                 break;
1462 #endif
1463 #ifdef CONFIG_DRM_AMDGPU_CIK
1464         case CHIP_BONAIRE:
1465         case CHIP_HAWAII:
1466         case CHIP_KAVERI:
1467         case CHIP_KABINI:
1468         case CHIP_MULLINS:
1469                 if ((adev->asic_type == CHIP_BONAIRE) || (adev->asic_type == CHIP_HAWAII))
1470                         adev->family = AMDGPU_FAMILY_CI;
1471                 else
1472                         adev->family = AMDGPU_FAMILY_KV;
1473
1474                 r = cik_set_ip_blocks(adev);
1475                 if (r)
1476                         return r;
1477                 break;
1478 #endif
1479         case CHIP_VEGA10:
1480         case CHIP_VEGA12:
1481         case CHIP_VEGA20:
1482         case CHIP_RAVEN:
1483                 if (adev->asic_type == CHIP_RAVEN)
1484                         adev->family = AMDGPU_FAMILY_RV;
1485                 else
1486                         adev->family = AMDGPU_FAMILY_AI;
1487
1488                 r = soc15_set_ip_blocks(adev);
1489                 if (r)
1490                         return r;
1491                 break;
1492         default:
1493                 /* FIXME: not supported yet */
1494                 return -EINVAL;
1495         }
1496
1497         r = amdgpu_device_parse_gpu_info_fw(adev);
1498         if (r)
1499                 return r;
1500
1501         amdgpu_amdkfd_device_probe(adev);
1502
1503         if (amdgpu_sriov_vf(adev)) {
1504                 r = amdgpu_virt_request_full_gpu(adev, true);
1505                 if (r)
1506                         return -EAGAIN;
1507         }
1508
1509         adev->powerplay.pp_feature = amdgpu_pp_feature_mask;
1510
1511         for (i = 0; i < adev->num_ip_blocks; i++) {
1512                 if ((amdgpu_ip_block_mask & (1 << i)) == 0) {
1513                         DRM_ERROR("disabled ip block: %d <%s>\n",
1514                                   i, adev->ip_blocks[i].version->funcs->name);
1515                         adev->ip_blocks[i].status.valid = false;
1516                 } else {
1517                         if (adev->ip_blocks[i].version->funcs->early_init) {
1518                                 r = adev->ip_blocks[i].version->funcs->early_init((void *)adev);
1519                                 if (r == -ENOENT) {
1520                                         adev->ip_blocks[i].status.valid = false;
1521                                 } else if (r) {
1522                                         DRM_ERROR("early_init of IP block <%s> failed %d\n",
1523                                                   adev->ip_blocks[i].version->funcs->name, r);
1524                                         return r;
1525                                 } else {
1526                                         adev->ip_blocks[i].status.valid = true;
1527                                 }
1528                         } else {
1529                                 adev->ip_blocks[i].status.valid = true;
1530                         }
1531                 }
1532         }
1533
1534         adev->cg_flags &= amdgpu_cg_mask;
1535         adev->pg_flags &= amdgpu_pg_mask;
1536
1537         return 0;
1538 }
1539
1540 static int amdgpu_device_ip_hw_init_phase1(struct amdgpu_device *adev)
1541 {
1542         int i, r;
1543
1544         for (i = 0; i < adev->num_ip_blocks; i++) {
1545                 if (!adev->ip_blocks[i].status.sw)
1546                         continue;
1547                 if (adev->ip_blocks[i].status.hw)
1548                         continue;
1549                 if (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_COMMON ||
1550                     adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_IH) {
1551                         r = adev->ip_blocks[i].version->funcs->hw_init(adev);
1552                         if (r) {
1553                                 DRM_ERROR("hw_init of IP block <%s> failed %d\n",
1554                                           adev->ip_blocks[i].version->funcs->name, r);
1555                                 return r;
1556                         }
1557                         adev->ip_blocks[i].status.hw = true;
1558                 }
1559         }
1560
1561         return 0;
1562 }
1563
1564 static int amdgpu_device_ip_hw_init_phase2(struct amdgpu_device *adev)
1565 {
1566         int i, r;
1567
1568         for (i = 0; i < adev->num_ip_blocks; i++) {
1569                 if (!adev->ip_blocks[i].status.sw)
1570                         continue;
1571                 if (adev->ip_blocks[i].status.hw)
1572                         continue;
1573                 r = adev->ip_blocks[i].version->funcs->hw_init(adev);
1574                 if (r) {
1575                         DRM_ERROR("hw_init of IP block <%s> failed %d\n",
1576                                   adev->ip_blocks[i].version->funcs->name, r);
1577                         return r;
1578                 }
1579                 adev->ip_blocks[i].status.hw = true;
1580         }
1581
1582         return 0;
1583 }
1584
1585 static int amdgpu_device_fw_loading(struct amdgpu_device *adev)
1586 {
1587         int r = 0;
1588         int i;
1589
1590         if (adev->asic_type >= CHIP_VEGA10) {
1591                 for (i = 0; i < adev->num_ip_blocks; i++) {
1592                         if (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_PSP) {
1593                                 if (adev->in_gpu_reset || adev->in_suspend) {
1594                                         if (amdgpu_sriov_vf(adev) && adev->in_gpu_reset)
1595                                                 break; /* sriov gpu reset, psp need to do hw_init before IH because of hw limit */
1596                                         r = adev->ip_blocks[i].version->funcs->resume(adev);
1597                                         if (r) {
1598                                                 DRM_ERROR("resume of IP block <%s> failed %d\n",
1599                                                           adev->ip_blocks[i].version->funcs->name, r);
1600                                                 return r;
1601                                         }
1602                                 } else {
1603                                         r = adev->ip_blocks[i].version->funcs->hw_init(adev);
1604                                         if (r) {
1605                                                 DRM_ERROR("hw_init of IP block <%s> failed %d\n",
1606                                                   adev->ip_blocks[i].version->funcs->name, r);
1607                                                 return r;
1608                                         }
1609                                 }
1610                                 adev->ip_blocks[i].status.hw = true;
1611                         }
1612                 }
1613         }
1614
1615         if (adev->powerplay.pp_funcs && adev->powerplay.pp_funcs->load_firmware) {
1616                 r = adev->powerplay.pp_funcs->load_firmware(adev->powerplay.pp_handle);
1617                 if (r) {
1618                         pr_err("firmware loading failed\n");
1619                         return r;
1620                 }
1621         }
1622
1623         return 0;
1624 }
1625
1626 /**
1627  * amdgpu_device_ip_init - run init for hardware IPs
1628  *
1629  * @adev: amdgpu_device pointer
1630  *
1631  * Main initialization pass for hardware IPs.  The list of all the hardware
1632  * IPs that make up the asic is walked and the sw_init and hw_init callbacks
1633  * are run.  sw_init initializes the software state associated with each IP
1634  * and hw_init initializes the hardware associated with each IP.
1635  * Returns 0 on success, negative error code on failure.
1636  */
1637 static int amdgpu_device_ip_init(struct amdgpu_device *adev)
1638 {
1639         int i, r;
1640
1641         for (i = 0; i < adev->num_ip_blocks; i++) {
1642                 if (!adev->ip_blocks[i].status.valid)
1643                         continue;
1644                 r = adev->ip_blocks[i].version->funcs->sw_init((void *)adev);
1645                 if (r) {
1646                         DRM_ERROR("sw_init of IP block <%s> failed %d\n",
1647                                   adev->ip_blocks[i].version->funcs->name, r);
1648                         return r;
1649                 }
1650                 adev->ip_blocks[i].status.sw = true;
1651
1652                 /* need to do gmc hw init early so we can allocate gpu mem */
1653                 if (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_GMC) {
1654                         r = amdgpu_device_vram_scratch_init(adev);
1655                         if (r) {
1656                                 DRM_ERROR("amdgpu_vram_scratch_init failed %d\n", r);
1657                                 return r;
1658                         }
1659                         r = adev->ip_blocks[i].version->funcs->hw_init((void *)adev);
1660                         if (r) {
1661                                 DRM_ERROR("hw_init %d failed %d\n", i, r);
1662                                 return r;
1663                         }
1664                         r = amdgpu_device_wb_init(adev);
1665                         if (r) {
1666                                 DRM_ERROR("amdgpu_device_wb_init failed %d\n", r);
1667                                 return r;
1668                         }
1669                         adev->ip_blocks[i].status.hw = true;
1670
1671                         /* right after GMC hw init, we create CSA */
1672                         if (amdgpu_sriov_vf(adev)) {
1673                                 r = amdgpu_allocate_static_csa(adev, &adev->virt.csa_obj,
1674                                                                 AMDGPU_GEM_DOMAIN_VRAM,
1675                                                                 AMDGPU_CSA_SIZE);
1676                                 if (r) {
1677                                         DRM_ERROR("allocate CSA failed %d\n", r);
1678                                         return r;
1679                                 }
1680                         }
1681                 }
1682         }
1683
1684         r = amdgpu_ucode_create_bo(adev); /* create ucode bo when sw_init complete*/
1685         if (r)
1686                 return r;
1687
1688         r = amdgpu_device_ip_hw_init_phase1(adev);
1689         if (r)
1690                 return r;
1691
1692         r = amdgpu_device_fw_loading(adev);
1693         if (r)
1694                 return r;
1695
1696         r = amdgpu_device_ip_hw_init_phase2(adev);
1697         if (r)
1698                 return r;
1699
1700         if (adev->gmc.xgmi.num_physical_nodes > 1)
1701                 amdgpu_xgmi_add_device(adev);
1702         amdgpu_amdkfd_device_init(adev);
1703
1704         if (amdgpu_sriov_vf(adev))
1705                 amdgpu_virt_release_full_gpu(adev, true);
1706
1707         return 0;
1708 }
1709
1710 /**
1711  * amdgpu_device_fill_reset_magic - writes reset magic to gart pointer
1712  *
1713  * @adev: amdgpu_device pointer
1714  *
1715  * Writes a reset magic value to the gart pointer in VRAM.  The driver calls
1716  * this function before a GPU reset.  If the value is retained after a
1717  * GPU reset, VRAM has not been lost.  Some GPU resets may destry VRAM contents.
1718  */
1719 static void amdgpu_device_fill_reset_magic(struct amdgpu_device *adev)
1720 {
1721         memcpy(adev->reset_magic, adev->gart.ptr, AMDGPU_RESET_MAGIC_NUM);
1722 }
1723
1724 /**
1725  * amdgpu_device_check_vram_lost - check if vram is valid
1726  *
1727  * @adev: amdgpu_device pointer
1728  *
1729  * Checks the reset magic value written to the gart pointer in VRAM.
1730  * The driver calls this after a GPU reset to see if the contents of
1731  * VRAM is lost or now.
1732  * returns true if vram is lost, false if not.
1733  */
1734 static bool amdgpu_device_check_vram_lost(struct amdgpu_device *adev)
1735 {
1736         return !!memcmp(adev->gart.ptr, adev->reset_magic,
1737                         AMDGPU_RESET_MAGIC_NUM);
1738 }
1739
1740 /**
1741  * amdgpu_device_set_cg_state - set clockgating for amdgpu device
1742  *
1743  * @adev: amdgpu_device pointer
1744  *
1745  * The list of all the hardware IPs that make up the asic is walked and the
1746  * set_clockgating_state callbacks are run.
1747  * Late initialization pass enabling clockgating for hardware IPs.
1748  * Fini or suspend, pass disabling clockgating for hardware IPs.
1749  * Returns 0 on success, negative error code on failure.
1750  */
1751
1752 static int amdgpu_device_set_cg_state(struct amdgpu_device *adev,
1753                                                 enum amd_clockgating_state state)
1754 {
1755         int i, j, r;
1756
1757         if (amdgpu_emu_mode == 1)
1758                 return 0;
1759
1760         for (j = 0; j < adev->num_ip_blocks; j++) {
1761                 i = state == AMD_CG_STATE_GATE ? j : adev->num_ip_blocks - j - 1;
1762                 if (!adev->ip_blocks[i].status.late_initialized)
1763                         continue;
1764                 /* skip CG for VCE/UVD, it's handled specially */
1765                 if (adev->ip_blocks[i].version->type != AMD_IP_BLOCK_TYPE_UVD &&
1766                     adev->ip_blocks[i].version->type != AMD_IP_BLOCK_TYPE_VCE &&
1767                     adev->ip_blocks[i].version->type != AMD_IP_BLOCK_TYPE_VCN &&
1768                     adev->ip_blocks[i].version->funcs->set_clockgating_state) {
1769                         /* enable clockgating to save power */
1770                         r = adev->ip_blocks[i].version->funcs->set_clockgating_state((void *)adev,
1771                                                                                      state);
1772                         if (r) {
1773                                 DRM_ERROR("set_clockgating_state(gate) of IP block <%s> failed %d\n",
1774                                           adev->ip_blocks[i].version->funcs->name, r);
1775                                 return r;
1776                         }
1777                 }
1778         }
1779
1780         return 0;
1781 }
1782
1783 static int amdgpu_device_set_pg_state(struct amdgpu_device *adev, enum amd_powergating_state state)
1784 {
1785         int i, j, r;
1786
1787         if (amdgpu_emu_mode == 1)
1788                 return 0;
1789
1790         for (j = 0; j < adev->num_ip_blocks; j++) {
1791                 i = state == AMD_PG_STATE_GATE ? j : adev->num_ip_blocks - j - 1;
1792                 if (!adev->ip_blocks[i].status.late_initialized)
1793                         continue;
1794                 /* skip CG for VCE/UVD, it's handled specially */
1795                 if (adev->ip_blocks[i].version->type != AMD_IP_BLOCK_TYPE_UVD &&
1796                     adev->ip_blocks[i].version->type != AMD_IP_BLOCK_TYPE_VCE &&
1797                     adev->ip_blocks[i].version->type != AMD_IP_BLOCK_TYPE_VCN &&
1798                     adev->ip_blocks[i].version->funcs->set_powergating_state) {
1799                         /* enable powergating to save power */
1800                         r = adev->ip_blocks[i].version->funcs->set_powergating_state((void *)adev,
1801                                                                                         state);
1802                         if (r) {
1803                                 DRM_ERROR("set_powergating_state(gate) of IP block <%s> failed %d\n",
1804                                           adev->ip_blocks[i].version->funcs->name, r);
1805                                 return r;
1806                         }
1807                 }
1808         }
1809         return 0;
1810 }
1811
1812 /**
1813  * amdgpu_device_ip_late_init - run late init for hardware IPs
1814  *
1815  * @adev: amdgpu_device pointer
1816  *
1817  * Late initialization pass for hardware IPs.  The list of all the hardware
1818  * IPs that make up the asic is walked and the late_init callbacks are run.
1819  * late_init covers any special initialization that an IP requires
1820  * after all of the have been initialized or something that needs to happen
1821  * late in the init process.
1822  * Returns 0 on success, negative error code on failure.
1823  */
1824 static int amdgpu_device_ip_late_init(struct amdgpu_device *adev)
1825 {
1826         int i = 0, r;
1827
1828         for (i = 0; i < adev->num_ip_blocks; i++) {
1829                 if (!adev->ip_blocks[i].status.hw)
1830                         continue;
1831                 if (adev->ip_blocks[i].version->funcs->late_init) {
1832                         r = adev->ip_blocks[i].version->funcs->late_init((void *)adev);
1833                         if (r) {
1834                                 DRM_ERROR("late_init of IP block <%s> failed %d\n",
1835                                           adev->ip_blocks[i].version->funcs->name, r);
1836                                 return r;
1837                         }
1838                 }
1839                 adev->ip_blocks[i].status.late_initialized = true;
1840         }
1841
1842         amdgpu_device_set_cg_state(adev, AMD_CG_STATE_GATE);
1843         amdgpu_device_set_pg_state(adev, AMD_PG_STATE_GATE);
1844
1845         queue_delayed_work(system_wq, &adev->late_init_work,
1846                            msecs_to_jiffies(AMDGPU_RESUME_MS));
1847
1848         amdgpu_device_fill_reset_magic(adev);
1849
1850         return 0;
1851 }
1852
1853 /**
1854  * amdgpu_device_ip_fini - run fini for hardware IPs
1855  *
1856  * @adev: amdgpu_device pointer
1857  *
1858  * Main teardown pass for hardware IPs.  The list of all the hardware
1859  * IPs that make up the asic is walked and the hw_fini and sw_fini callbacks
1860  * are run.  hw_fini tears down the hardware associated with each IP
1861  * and sw_fini tears down any software state associated with each IP.
1862  * Returns 0 on success, negative error code on failure.
1863  */
1864 static int amdgpu_device_ip_fini(struct amdgpu_device *adev)
1865 {
1866         int i, r;
1867
1868         if (adev->gmc.xgmi.num_physical_nodes > 1)
1869                 amdgpu_xgmi_remove_device(adev);
1870
1871         amdgpu_amdkfd_device_fini(adev);
1872
1873         amdgpu_device_set_pg_state(adev, AMD_PG_STATE_UNGATE);
1874         amdgpu_device_set_cg_state(adev, AMD_CG_STATE_UNGATE);
1875
1876         /* need to disable SMC first */
1877         for (i = 0; i < adev->num_ip_blocks; i++) {
1878                 if (!adev->ip_blocks[i].status.hw)
1879                         continue;
1880                 if (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_SMC) {
1881                         r = adev->ip_blocks[i].version->funcs->hw_fini((void *)adev);
1882                         /* XXX handle errors */
1883                         if (r) {
1884                                 DRM_DEBUG("hw_fini of IP block <%s> failed %d\n",
1885                                           adev->ip_blocks[i].version->funcs->name, r);
1886                         }
1887                         adev->ip_blocks[i].status.hw = false;
1888                         break;
1889                 }
1890         }
1891
1892         for (i = adev->num_ip_blocks - 1; i >= 0; i--) {
1893                 if (!adev->ip_blocks[i].status.hw)
1894                         continue;
1895
1896                 r = adev->ip_blocks[i].version->funcs->hw_fini((void *)adev);
1897                 /* XXX handle errors */
1898                 if (r) {
1899                         DRM_DEBUG("hw_fini of IP block <%s> failed %d\n",
1900                                   adev->ip_blocks[i].version->funcs->name, r);
1901                 }
1902
1903                 adev->ip_blocks[i].status.hw = false;
1904         }
1905
1906
1907         for (i = adev->num_ip_blocks - 1; i >= 0; i--) {
1908                 if (!adev->ip_blocks[i].status.sw)
1909                         continue;
1910
1911                 if (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_GMC) {
1912                         amdgpu_ucode_free_bo(adev);
1913                         amdgpu_free_static_csa(&adev->virt.csa_obj);
1914                         amdgpu_device_wb_fini(adev);
1915                         amdgpu_device_vram_scratch_fini(adev);
1916                 }
1917
1918                 r = adev->ip_blocks[i].version->funcs->sw_fini((void *)adev);
1919                 /* XXX handle errors */
1920                 if (r) {
1921                         DRM_DEBUG("sw_fini of IP block <%s> failed %d\n",
1922                                   adev->ip_blocks[i].version->funcs->name, r);
1923                 }
1924                 adev->ip_blocks[i].status.sw = false;
1925                 adev->ip_blocks[i].status.valid = false;
1926         }
1927
1928         for (i = adev->num_ip_blocks - 1; i >= 0; i--) {
1929                 if (!adev->ip_blocks[i].status.late_initialized)
1930                         continue;
1931                 if (adev->ip_blocks[i].version->funcs->late_fini)
1932                         adev->ip_blocks[i].version->funcs->late_fini((void *)adev);
1933                 adev->ip_blocks[i].status.late_initialized = false;
1934         }
1935
1936         if (amdgpu_sriov_vf(adev))
1937                 if (amdgpu_virt_release_full_gpu(adev, false))
1938                         DRM_ERROR("failed to release exclusive mode on fini\n");
1939
1940         return 0;
1941 }
1942
1943 static int amdgpu_device_enable_mgpu_fan_boost(void)
1944 {
1945         struct amdgpu_gpu_instance *gpu_ins;
1946         struct amdgpu_device *adev;
1947         int i, ret = 0;
1948
1949         mutex_lock(&mgpu_info.mutex);
1950
1951         /*
1952          * MGPU fan boost feature should be enabled
1953          * only when there are two or more dGPUs in
1954          * the system
1955          */
1956         if (mgpu_info.num_dgpu < 2)
1957                 goto out;
1958
1959         for (i = 0; i < mgpu_info.num_dgpu; i++) {
1960                 gpu_ins = &(mgpu_info.gpu_ins[i]);
1961                 adev = gpu_ins->adev;
1962                 if (!(adev->flags & AMD_IS_APU) &&
1963                     !gpu_ins->mgpu_fan_enabled &&
1964                     adev->powerplay.pp_funcs &&
1965                     adev->powerplay.pp_funcs->enable_mgpu_fan_boost) {
1966                         ret = amdgpu_dpm_enable_mgpu_fan_boost(adev);
1967                         if (ret)
1968                                 break;
1969
1970                         gpu_ins->mgpu_fan_enabled = 1;
1971                 }
1972         }
1973
1974 out:
1975         mutex_unlock(&mgpu_info.mutex);
1976
1977         return ret;
1978 }
1979
1980 /**
1981  * amdgpu_device_ip_late_init_func_handler - work handler for ib test
1982  *
1983  * @work: work_struct.
1984  */
1985 static void amdgpu_device_ip_late_init_func_handler(struct work_struct *work)
1986 {
1987         struct amdgpu_device *adev =
1988                 container_of(work, struct amdgpu_device, late_init_work.work);
1989         int r;
1990
1991         r = amdgpu_ib_ring_tests(adev);
1992         if (r)
1993                 DRM_ERROR("ib ring test failed (%d).\n", r);
1994
1995         r = amdgpu_device_enable_mgpu_fan_boost();
1996         if (r)
1997                 DRM_ERROR("enable mgpu fan boost failed (%d).\n", r);
1998 }
1999
2000 static void amdgpu_device_delay_enable_gfx_off(struct work_struct *work)
2001 {
2002         struct amdgpu_device *adev =
2003                 container_of(work, struct amdgpu_device, gfx.gfx_off_delay_work.work);
2004
2005         mutex_lock(&adev->gfx.gfx_off_mutex);
2006         if (!adev->gfx.gfx_off_state && !adev->gfx.gfx_off_req_count) {
2007                 if (!amdgpu_dpm_set_powergating_by_smu(adev, AMD_IP_BLOCK_TYPE_GFX, true))
2008                         adev->gfx.gfx_off_state = true;
2009         }
2010         mutex_unlock(&adev->gfx.gfx_off_mutex);
2011 }
2012
2013 /**
2014  * amdgpu_device_ip_suspend_phase1 - run suspend for hardware IPs (phase 1)
2015  *
2016  * @adev: amdgpu_device pointer
2017  *
2018  * Main suspend function for hardware IPs.  The list of all the hardware
2019  * IPs that make up the asic is walked, clockgating is disabled and the
2020  * suspend callbacks are run.  suspend puts the hardware and software state
2021  * in each IP into a state suitable for suspend.
2022  * Returns 0 on success, negative error code on failure.
2023  */
2024 static int amdgpu_device_ip_suspend_phase1(struct amdgpu_device *adev)
2025 {
2026         int i, r;
2027
2028         amdgpu_device_set_pg_state(adev, AMD_PG_STATE_UNGATE);
2029         amdgpu_device_set_cg_state(adev, AMD_CG_STATE_UNGATE);
2030
2031         for (i = adev->num_ip_blocks - 1; i >= 0; i--) {
2032                 if (!adev->ip_blocks[i].status.valid)
2033                         continue;
2034                 /* displays are handled separately */
2035                 if (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_DCE) {
2036                         /* XXX handle errors */
2037                         r = adev->ip_blocks[i].version->funcs->suspend(adev);
2038                         /* XXX handle errors */
2039                         if (r) {
2040                                 DRM_ERROR("suspend of IP block <%s> failed %d\n",
2041                                           adev->ip_blocks[i].version->funcs->name, r);
2042                         }
2043                 }
2044         }
2045
2046         return 0;
2047 }
2048
2049 /**
2050  * amdgpu_device_ip_suspend_phase2 - run suspend for hardware IPs (phase 2)
2051  *
2052  * @adev: amdgpu_device pointer
2053  *
2054  * Main suspend function for hardware IPs.  The list of all the hardware
2055  * IPs that make up the asic is walked, clockgating is disabled and the
2056  * suspend callbacks are run.  suspend puts the hardware and software state
2057  * in each IP into a state suitable for suspend.
2058  * Returns 0 on success, negative error code on failure.
2059  */
2060 static int amdgpu_device_ip_suspend_phase2(struct amdgpu_device *adev)
2061 {
2062         int i, r;
2063
2064         for (i = adev->num_ip_blocks - 1; i >= 0; i--) {
2065                 if (!adev->ip_blocks[i].status.valid)
2066                         continue;
2067                 /* displays are handled in phase1 */
2068                 if (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_DCE)
2069                         continue;
2070                 /* XXX handle errors */
2071                 r = adev->ip_blocks[i].version->funcs->suspend(adev);
2072                 /* XXX handle errors */
2073                 if (r) {
2074                         DRM_ERROR("suspend of IP block <%s> failed %d\n",
2075                                   adev->ip_blocks[i].version->funcs->name, r);
2076                 }
2077         }
2078
2079         return 0;
2080 }
2081
2082 /**
2083  * amdgpu_device_ip_suspend - run suspend for hardware IPs
2084  *
2085  * @adev: amdgpu_device pointer
2086  *
2087  * Main suspend function for hardware IPs.  The list of all the hardware
2088  * IPs that make up the asic is walked, clockgating is disabled and the
2089  * suspend callbacks are run.  suspend puts the hardware and software state
2090  * in each IP into a state suitable for suspend.
2091  * Returns 0 on success, negative error code on failure.
2092  */
2093 int amdgpu_device_ip_suspend(struct amdgpu_device *adev)
2094 {
2095         int r;
2096
2097         if (amdgpu_sriov_vf(adev))
2098                 amdgpu_virt_request_full_gpu(adev, false);
2099
2100         r = amdgpu_device_ip_suspend_phase1(adev);
2101         if (r)
2102                 return r;
2103         r = amdgpu_device_ip_suspend_phase2(adev);
2104
2105         if (amdgpu_sriov_vf(adev))
2106                 amdgpu_virt_release_full_gpu(adev, false);
2107
2108         return r;
2109 }
2110
2111 static int amdgpu_device_ip_reinit_early_sriov(struct amdgpu_device *adev)
2112 {
2113         int i, r;
2114
2115         static enum amd_ip_block_type ip_order[] = {
2116                 AMD_IP_BLOCK_TYPE_GMC,
2117                 AMD_IP_BLOCK_TYPE_COMMON,
2118                 AMD_IP_BLOCK_TYPE_PSP,
2119                 AMD_IP_BLOCK_TYPE_IH,
2120         };
2121
2122         for (i = 0; i < ARRAY_SIZE(ip_order); i++) {
2123                 int j;
2124                 struct amdgpu_ip_block *block;
2125
2126                 for (j = 0; j < adev->num_ip_blocks; j++) {
2127                         block = &adev->ip_blocks[j];
2128
2129                         if (block->version->type != ip_order[i] ||
2130                                 !block->status.valid)
2131                                 continue;
2132
2133                         r = block->version->funcs->hw_init(adev);
2134                         DRM_INFO("RE-INIT: %s %s\n", block->version->funcs->name, r?"failed":"succeeded");
2135                         if (r)
2136                                 return r;
2137                 }
2138         }
2139
2140         return 0;
2141 }
2142
2143 static int amdgpu_device_ip_reinit_late_sriov(struct amdgpu_device *adev)
2144 {
2145         int i, r;
2146
2147         static enum amd_ip_block_type ip_order[] = {
2148                 AMD_IP_BLOCK_TYPE_SMC,
2149                 AMD_IP_BLOCK_TYPE_DCE,
2150                 AMD_IP_BLOCK_TYPE_GFX,
2151                 AMD_IP_BLOCK_TYPE_SDMA,
2152                 AMD_IP_BLOCK_TYPE_UVD,
2153                 AMD_IP_BLOCK_TYPE_VCE
2154         };
2155
2156         for (i = 0; i < ARRAY_SIZE(ip_order); i++) {
2157                 int j;
2158                 struct amdgpu_ip_block *block;
2159
2160                 for (j = 0; j < adev->num_ip_blocks; j++) {
2161                         block = &adev->ip_blocks[j];
2162
2163                         if (block->version->type != ip_order[i] ||
2164                                 !block->status.valid)
2165                                 continue;
2166
2167                         r = block->version->funcs->hw_init(adev);
2168                         DRM_INFO("RE-INIT: %s %s\n", block->version->funcs->name, r?"failed":"succeeded");
2169                         if (r)
2170                                 return r;
2171                 }
2172         }
2173
2174         return 0;
2175 }
2176
2177 /**
2178  * amdgpu_device_ip_resume_phase1 - run resume for hardware IPs
2179  *
2180  * @adev: amdgpu_device pointer
2181  *
2182  * First resume function for hardware IPs.  The list of all the hardware
2183  * IPs that make up the asic is walked and the resume callbacks are run for
2184  * COMMON, GMC, and IH.  resume puts the hardware into a functional state
2185  * after a suspend and updates the software state as necessary.  This
2186  * function is also used for restoring the GPU after a GPU reset.
2187  * Returns 0 on success, negative error code on failure.
2188  */
2189 static int amdgpu_device_ip_resume_phase1(struct amdgpu_device *adev)
2190 {
2191         int i, r;
2192
2193         for (i = 0; i < adev->num_ip_blocks; i++) {
2194                 if (!adev->ip_blocks[i].status.valid)
2195                         continue;
2196                 if (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_COMMON ||
2197                     adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_GMC ||
2198                     adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_IH) {
2199                         r = adev->ip_blocks[i].version->funcs->resume(adev);
2200                         if (r) {
2201                                 DRM_ERROR("resume of IP block <%s> failed %d\n",
2202                                           adev->ip_blocks[i].version->funcs->name, r);
2203                                 return r;
2204                         }
2205                 }
2206         }
2207
2208         return 0;
2209 }
2210
2211 /**
2212  * amdgpu_device_ip_resume_phase2 - run resume for hardware IPs
2213  *
2214  * @adev: amdgpu_device pointer
2215  *
2216  * First resume function for hardware IPs.  The list of all the hardware
2217  * IPs that make up the asic is walked and the resume callbacks are run for
2218  * all blocks except COMMON, GMC, and IH.  resume puts the hardware into a
2219  * functional state after a suspend and updates the software state as
2220  * necessary.  This function is also used for restoring the GPU after a GPU
2221  * reset.
2222  * Returns 0 on success, negative error code on failure.
2223  */
2224 static int amdgpu_device_ip_resume_phase2(struct amdgpu_device *adev)
2225 {
2226         int i, r;
2227
2228         for (i = 0; i < adev->num_ip_blocks; i++) {
2229                 if (!adev->ip_blocks[i].status.valid)
2230                         continue;
2231                 if (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_COMMON ||
2232                     adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_GMC ||
2233                     adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_IH ||
2234                     adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_PSP)
2235                         continue;
2236                 r = adev->ip_blocks[i].version->funcs->resume(adev);
2237                 if (r) {
2238                         DRM_ERROR("resume of IP block <%s> failed %d\n",
2239                                   adev->ip_blocks[i].version->funcs->name, r);
2240                         return r;
2241                 }
2242         }
2243
2244         return 0;
2245 }
2246
2247 /**
2248  * amdgpu_device_ip_resume - run resume for hardware IPs
2249  *
2250  * @adev: amdgpu_device pointer
2251  *
2252  * Main resume function for hardware IPs.  The hardware IPs
2253  * are split into two resume functions because they are
2254  * are also used in in recovering from a GPU reset and some additional
2255  * steps need to be take between them.  In this case (S3/S4) they are
2256  * run sequentially.
2257  * Returns 0 on success, negative error code on failure.
2258  */
2259 static int amdgpu_device_ip_resume(struct amdgpu_device *adev)
2260 {
2261         int r;
2262
2263         r = amdgpu_device_ip_resume_phase1(adev);
2264         if (r)
2265                 return r;
2266
2267         r = amdgpu_device_fw_loading(adev);
2268         if (r)
2269                 return r;
2270
2271         r = amdgpu_device_ip_resume_phase2(adev);
2272
2273         return r;
2274 }
2275
2276 /**
2277  * amdgpu_device_detect_sriov_bios - determine if the board supports SR-IOV
2278  *
2279  * @adev: amdgpu_device pointer
2280  *
2281  * Query the VBIOS data tables to determine if the board supports SR-IOV.
2282  */
2283 static void amdgpu_device_detect_sriov_bios(struct amdgpu_device *adev)
2284 {
2285         if (amdgpu_sriov_vf(adev)) {
2286                 if (adev->is_atom_fw) {
2287                         if (amdgpu_atomfirmware_gpu_supports_virtualization(adev))
2288                                 adev->virt.caps |= AMDGPU_SRIOV_CAPS_SRIOV_VBIOS;
2289                 } else {
2290                         if (amdgpu_atombios_has_gpu_virtualization_table(adev))
2291                                 adev->virt.caps |= AMDGPU_SRIOV_CAPS_SRIOV_VBIOS;
2292                 }
2293
2294                 if (!(adev->virt.caps & AMDGPU_SRIOV_CAPS_SRIOV_VBIOS))
2295                         amdgpu_vf_error_put(adev, AMDGIM_ERROR_VF_NO_VBIOS, 0, 0);
2296         }
2297 }
2298
2299 /**
2300  * amdgpu_device_asic_has_dc_support - determine if DC supports the asic
2301  *
2302  * @asic_type: AMD asic type
2303  *
2304  * Check if there is DC (new modesetting infrastructre) support for an asic.
2305  * returns true if DC has support, false if not.
2306  */
2307 bool amdgpu_device_asic_has_dc_support(enum amd_asic_type asic_type)
2308 {
2309         switch (asic_type) {
2310 #if defined(CONFIG_DRM_AMD_DC)
2311         case CHIP_BONAIRE:
2312         case CHIP_KAVERI:
2313         case CHIP_KABINI:
2314         case CHIP_MULLINS:
2315                 /*
2316                  * We have systems in the wild with these ASICs that require
2317                  * LVDS and VGA support which is not supported with DC.
2318                  *
2319                  * Fallback to the non-DC driver here by default so as not to
2320                  * cause regressions.
2321                  */
2322                 return amdgpu_dc > 0;
2323         case CHIP_HAWAII:
2324         case CHIP_CARRIZO:
2325         case CHIP_STONEY:
2326         case CHIP_POLARIS10:
2327         case CHIP_POLARIS11:
2328         case CHIP_POLARIS12:
2329         case CHIP_VEGAM:
2330         case CHIP_TONGA:
2331         case CHIP_FIJI:
2332         case CHIP_VEGA10:
2333         case CHIP_VEGA12:
2334         case CHIP_VEGA20:
2335 #if defined(CONFIG_DRM_AMD_DC_DCN1_0)
2336         case CHIP_RAVEN:
2337 #endif
2338                 return amdgpu_dc != 0;
2339 #endif
2340         default:
2341                 return false;
2342         }
2343 }
2344
2345 /**
2346  * amdgpu_device_has_dc_support - check if dc is supported
2347  *
2348  * @adev: amdgpu_device_pointer
2349  *
2350  * Returns true for supported, false for not supported
2351  */
2352 bool amdgpu_device_has_dc_support(struct amdgpu_device *adev)
2353 {
2354         if (amdgpu_sriov_vf(adev))
2355                 return false;
2356
2357         return amdgpu_device_asic_has_dc_support(adev->asic_type);
2358 }
2359
2360
2361 static void amdgpu_device_xgmi_reset_func(struct work_struct *__work)
2362 {
2363         struct amdgpu_device *adev =
2364                 container_of(__work, struct amdgpu_device, xgmi_reset_work);
2365
2366         adev->asic_reset_res =  amdgpu_asic_reset(adev);
2367         if (adev->asic_reset_res)
2368                 DRM_WARN("ASIC reset failed with err r, %d for drm dev, %s",
2369                          adev->asic_reset_res, adev->ddev->unique);
2370 }
2371
2372
2373 /**
2374  * amdgpu_device_init - initialize the driver
2375  *
2376  * @adev: amdgpu_device pointer
2377  * @ddev: drm dev pointer
2378  * @pdev: pci dev pointer
2379  * @flags: driver flags
2380  *
2381  * Initializes the driver info and hw (all asics).
2382  * Returns 0 for success or an error on failure.
2383  * Called at driver startup.
2384  */
2385 int amdgpu_device_init(struct amdgpu_device *adev,
2386                        struct drm_device *ddev,
2387                        struct pci_dev *pdev,
2388                        uint32_t flags)
2389 {
2390         int r, i;
2391         bool runtime = false;
2392         u32 max_MBps;
2393
2394         adev->shutdown = false;
2395         adev->dev = &pdev->dev;
2396         adev->ddev = ddev;
2397         adev->pdev = pdev;
2398         adev->flags = flags;
2399         adev->asic_type = flags & AMD_ASIC_MASK;
2400         adev->usec_timeout = AMDGPU_MAX_USEC_TIMEOUT;
2401         if (amdgpu_emu_mode == 1)
2402                 adev->usec_timeout *= 2;
2403         adev->gmc.gart_size = 512 * 1024 * 1024;
2404         adev->accel_working = false;
2405         adev->num_rings = 0;
2406         adev->mman.buffer_funcs = NULL;
2407         adev->mman.buffer_funcs_ring = NULL;
2408         adev->vm_manager.vm_pte_funcs = NULL;
2409         adev->vm_manager.vm_pte_num_rqs = 0;
2410         adev->gmc.gmc_funcs = NULL;
2411         adev->fence_context = dma_fence_context_alloc(AMDGPU_MAX_RINGS);
2412         bitmap_zero(adev->gfx.pipe_reserve_bitmap, AMDGPU_MAX_COMPUTE_QUEUES);
2413
2414         adev->smc_rreg = &amdgpu_invalid_rreg;
2415         adev->smc_wreg = &amdgpu_invalid_wreg;
2416         adev->pcie_rreg = &amdgpu_invalid_rreg;
2417         adev->pcie_wreg = &amdgpu_invalid_wreg;
2418         adev->pciep_rreg = &amdgpu_invalid_rreg;
2419         adev->pciep_wreg = &amdgpu_invalid_wreg;
2420         adev->uvd_ctx_rreg = &amdgpu_invalid_rreg;
2421         adev->uvd_ctx_wreg = &amdgpu_invalid_wreg;
2422         adev->didt_rreg = &amdgpu_invalid_rreg;
2423         adev->didt_wreg = &amdgpu_invalid_wreg;
2424         adev->gc_cac_rreg = &amdgpu_invalid_rreg;
2425         adev->gc_cac_wreg = &amdgpu_invalid_wreg;
2426         adev->audio_endpt_rreg = &amdgpu_block_invalid_rreg;
2427         adev->audio_endpt_wreg = &amdgpu_block_invalid_wreg;
2428
2429         DRM_INFO("initializing kernel modesetting (%s 0x%04X:0x%04X 0x%04X:0x%04X 0x%02X).\n",
2430                  amdgpu_asic_name[adev->asic_type], pdev->vendor, pdev->device,
2431                  pdev->subsystem_vendor, pdev->subsystem_device, pdev->revision);
2432
2433         /* mutex initialization are all done here so we
2434          * can recall function without having locking issues */
2435         atomic_set(&adev->irq.ih.lock, 0);
2436         mutex_init(&adev->firmware.mutex);
2437         mutex_init(&adev->pm.mutex);
2438         mutex_init(&adev->gfx.gpu_clock_mutex);
2439         mutex_init(&adev->srbm_mutex);
2440         mutex_init(&adev->gfx.pipe_reserve_mutex);
2441         mutex_init(&adev->gfx.gfx_off_mutex);
2442         mutex_init(&adev->grbm_idx_mutex);
2443         mutex_init(&adev->mn_lock);
2444         mutex_init(&adev->virt.vf_errors.lock);
2445         hash_init(adev->mn_hash);
2446         mutex_init(&adev->lock_reset);
2447
2448         amdgpu_device_check_arguments(adev);
2449
2450         spin_lock_init(&adev->mmio_idx_lock);
2451         spin_lock_init(&adev->smc_idx_lock);
2452         spin_lock_init(&adev->pcie_idx_lock);
2453         spin_lock_init(&adev->uvd_ctx_idx_lock);
2454         spin_lock_init(&adev->didt_idx_lock);
2455         spin_lock_init(&adev->gc_cac_idx_lock);
2456         spin_lock_init(&adev->se_cac_idx_lock);
2457         spin_lock_init(&adev->audio_endpt_idx_lock);
2458         spin_lock_init(&adev->mm_stats.lock);
2459
2460         INIT_LIST_HEAD(&adev->shadow_list);
2461         mutex_init(&adev->shadow_list_lock);
2462
2463         INIT_LIST_HEAD(&adev->ring_lru_list);
2464         spin_lock_init(&adev->ring_lru_list_lock);
2465
2466         INIT_DELAYED_WORK(&adev->late_init_work,
2467                           amdgpu_device_ip_late_init_func_handler);
2468         INIT_DELAYED_WORK(&adev->gfx.gfx_off_delay_work,
2469                           amdgpu_device_delay_enable_gfx_off);
2470
2471         INIT_WORK(&adev->xgmi_reset_work, amdgpu_device_xgmi_reset_func);
2472
2473         adev->gfx.gfx_off_req_count = 1;
2474         adev->pm.ac_power = power_supply_is_system_supplied() > 0 ? true : false;
2475
2476         /* Registers mapping */
2477         /* TODO: block userspace mapping of io register */
2478         if (adev->asic_type >= CHIP_BONAIRE) {
2479                 adev->rmmio_base = pci_resource_start(adev->pdev, 5);
2480                 adev->rmmio_size = pci_resource_len(adev->pdev, 5);
2481         } else {
2482                 adev->rmmio_base = pci_resource_start(adev->pdev, 2);
2483                 adev->rmmio_size = pci_resource_len(adev->pdev, 2);
2484         }
2485
2486         adev->rmmio = ioremap(adev->rmmio_base, adev->rmmio_size);
2487         if (adev->rmmio == NULL) {
2488                 return -ENOMEM;
2489         }
2490         DRM_INFO("register mmio base: 0x%08X\n", (uint32_t)adev->rmmio_base);
2491         DRM_INFO("register mmio size: %u\n", (unsigned)adev->rmmio_size);
2492
2493         /* io port mapping */
2494         for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) {
2495                 if (pci_resource_flags(adev->pdev, i) & IORESOURCE_IO) {
2496                         adev->rio_mem_size = pci_resource_len(adev->pdev, i);
2497                         adev->rio_mem = pci_iomap(adev->pdev, i, adev->rio_mem_size);
2498                         break;
2499                 }
2500         }
2501         if (adev->rio_mem == NULL)
2502                 DRM_INFO("PCI I/O BAR is not found.\n");
2503
2504         amdgpu_device_get_pcie_info(adev);
2505
2506         /* early init functions */
2507         r = amdgpu_device_ip_early_init(adev);
2508         if (r)
2509                 return r;
2510
2511         /* doorbell bar mapping and doorbell index init*/
2512         amdgpu_device_doorbell_init(adev);
2513
2514         /* if we have > 1 VGA cards, then disable the amdgpu VGA resources */
2515         /* this will fail for cards that aren't VGA class devices, just
2516          * ignore it */
2517         vga_client_register(adev->pdev, adev, NULL, amdgpu_device_vga_set_decode);
2518
2519         if (amdgpu_device_is_px(ddev))
2520                 runtime = true;
2521         if (!pci_is_thunderbolt_attached(adev->pdev))
2522                 vga_switcheroo_register_client(adev->pdev,
2523                                                &amdgpu_switcheroo_ops, runtime);
2524         if (runtime)
2525                 vga_switcheroo_init_domain_pm_ops(adev->dev, &adev->vga_pm_domain);
2526
2527         if (amdgpu_emu_mode == 1) {
2528                 /* post the asic on emulation mode */
2529                 emu_soc_asic_init(adev);
2530                 goto fence_driver_init;
2531         }
2532
2533         /* Read BIOS */
2534         if (!amdgpu_get_bios(adev)) {
2535                 r = -EINVAL;
2536                 goto failed;
2537         }
2538
2539         r = amdgpu_atombios_init(adev);
2540         if (r) {
2541                 dev_err(adev->dev, "amdgpu_atombios_init failed\n");
2542                 amdgpu_vf_error_put(adev, AMDGIM_ERROR_VF_ATOMBIOS_INIT_FAIL, 0, 0);
2543                 goto failed;
2544         }
2545
2546         /* detect if we are with an SRIOV vbios */
2547         amdgpu_device_detect_sriov_bios(adev);
2548
2549         /* Post card if necessary */
2550         if (amdgpu_device_need_post(adev)) {
2551                 if (!adev->bios) {
2552                         dev_err(adev->dev, "no vBIOS found\n");
2553                         r = -EINVAL;
2554                         goto failed;
2555                 }
2556                 DRM_INFO("GPU posting now...\n");
2557                 r = amdgpu_atom_asic_init(adev->mode_info.atom_context);
2558                 if (r) {
2559                         dev_err(adev->dev, "gpu post error!\n");
2560                         goto failed;
2561                 }
2562         }
2563
2564         if (adev->is_atom_fw) {
2565                 /* Initialize clocks */
2566                 r = amdgpu_atomfirmware_get_clock_info(adev);
2567                 if (r) {
2568                         dev_err(adev->dev, "amdgpu_atomfirmware_get_clock_info failed\n");
2569                         amdgpu_vf_error_put(adev, AMDGIM_ERROR_VF_ATOMBIOS_GET_CLOCK_FAIL, 0, 0);
2570                         goto failed;
2571                 }
2572         } else {
2573                 /* Initialize clocks */
2574                 r = amdgpu_atombios_get_clock_info(adev);
2575                 if (r) {
2576                         dev_err(adev->dev, "amdgpu_atombios_get_clock_info failed\n");
2577                         amdgpu_vf_error_put(adev, AMDGIM_ERROR_VF_ATOMBIOS_GET_CLOCK_FAIL, 0, 0);
2578                         goto failed;
2579                 }
2580                 /* init i2c buses */
2581                 if (!amdgpu_device_has_dc_support(adev))
2582                         amdgpu_atombios_i2c_init(adev);
2583         }
2584
2585 fence_driver_init:
2586         /* Fence driver */
2587         r = amdgpu_fence_driver_init(adev);
2588         if (r) {
2589                 dev_err(adev->dev, "amdgpu_fence_driver_init failed\n");
2590                 amdgpu_vf_error_put(adev, AMDGIM_ERROR_VF_FENCE_INIT_FAIL, 0, 0);
2591                 goto failed;
2592         }
2593
2594         /* init the mode config */
2595         drm_mode_config_init(adev->ddev);
2596
2597         r = amdgpu_device_ip_init(adev);
2598         if (r) {
2599                 /* failed in exclusive mode due to timeout */
2600                 if (amdgpu_sriov_vf(adev) &&
2601                     !amdgpu_sriov_runtime(adev) &&
2602                     amdgpu_virt_mmio_blocked(adev) &&
2603                     !amdgpu_virt_wait_reset(adev)) {
2604                         dev_err(adev->dev, "VF exclusive mode timeout\n");
2605                         /* Don't send request since VF is inactive. */
2606                         adev->virt.caps &= ~AMDGPU_SRIOV_CAPS_RUNTIME;
2607                         adev->virt.ops = NULL;
2608                         r = -EAGAIN;
2609                         goto failed;
2610                 }
2611                 dev_err(adev->dev, "amdgpu_device_ip_init failed\n");
2612                 amdgpu_vf_error_put(adev, AMDGIM_ERROR_VF_AMDGPU_INIT_FAIL, 0, 0);
2613                 goto failed;
2614         }
2615
2616         adev->accel_working = true;
2617
2618         amdgpu_vm_check_compute_bug(adev);
2619
2620         /* Initialize the buffer migration limit. */
2621         if (amdgpu_moverate >= 0)
2622                 max_MBps = amdgpu_moverate;
2623         else
2624                 max_MBps = 8; /* Allow 8 MB/s. */
2625         /* Get a log2 for easy divisions. */
2626         adev->mm_stats.log2_max_MBps = ilog2(max(1u, max_MBps));
2627
2628         r = amdgpu_ib_pool_init(adev);
2629         if (r) {
2630                 dev_err(adev->dev, "IB initialization failed (%d).\n", r);
2631                 amdgpu_vf_error_put(adev, AMDGIM_ERROR_VF_IB_INIT_FAIL, 0, r);
2632                 goto failed;
2633         }
2634
2635         if (amdgpu_sriov_vf(adev))
2636                 amdgpu_virt_init_data_exchange(adev);
2637
2638         amdgpu_fbdev_init(adev);
2639
2640         r = amdgpu_pm_sysfs_init(adev);
2641         if (r)
2642                 DRM_ERROR("registering pm debugfs failed (%d).\n", r);
2643
2644         r = amdgpu_debugfs_gem_init(adev);
2645         if (r)
2646                 DRM_ERROR("registering gem debugfs failed (%d).\n", r);
2647
2648         r = amdgpu_debugfs_regs_init(adev);
2649         if (r)
2650                 DRM_ERROR("registering register debugfs failed (%d).\n", r);
2651
2652         r = amdgpu_debugfs_firmware_init(adev);
2653         if (r)
2654                 DRM_ERROR("registering firmware debugfs failed (%d).\n", r);
2655
2656         r = amdgpu_debugfs_init(adev);
2657         if (r)
2658                 DRM_ERROR("Creating debugfs files failed (%d).\n", r);
2659
2660         if ((amdgpu_testing & 1)) {
2661                 if (adev->accel_working)
2662                         amdgpu_test_moves(adev);
2663                 else
2664                         DRM_INFO("amdgpu: acceleration disabled, skipping move tests\n");
2665         }
2666         if (amdgpu_benchmarking) {
2667                 if (adev->accel_working)
2668                         amdgpu_benchmark(adev, amdgpu_benchmarking);
2669                 else
2670                         DRM_INFO("amdgpu: acceleration disabled, skipping benchmarks\n");
2671         }
2672
2673         /* enable clockgating, etc. after ib tests, etc. since some blocks require
2674          * explicit gating rather than handling it automatically.
2675          */
2676         r = amdgpu_device_ip_late_init(adev);
2677         if (r) {
2678                 dev_err(adev->dev, "amdgpu_device_ip_late_init failed\n");
2679                 amdgpu_vf_error_put(adev, AMDGIM_ERROR_VF_AMDGPU_LATE_INIT_FAIL, 0, r);
2680                 goto failed;
2681         }
2682
2683         return 0;
2684
2685 failed:
2686         amdgpu_vf_error_trans_all(adev);
2687         if (runtime)
2688                 vga_switcheroo_fini_domain_pm_ops(adev->dev);
2689
2690         return r;
2691 }
2692
2693 /**
2694  * amdgpu_device_fini - tear down the driver
2695  *
2696  * @adev: amdgpu_device pointer
2697  *
2698  * Tear down the driver info (all asics).
2699  * Called at driver shutdown.
2700  */
2701 void amdgpu_device_fini(struct amdgpu_device *adev)
2702 {
2703         int r;
2704
2705         DRM_INFO("amdgpu: finishing device.\n");
2706         adev->shutdown = true;
2707         /* disable all interrupts */
2708         amdgpu_irq_disable_all(adev);
2709         if (adev->mode_info.mode_config_initialized){
2710                 if (!amdgpu_device_has_dc_support(adev))
2711                         drm_crtc_force_disable_all(adev->ddev);
2712                 else
2713                         drm_atomic_helper_shutdown(adev->ddev);
2714         }
2715         amdgpu_ib_pool_fini(adev);
2716         amdgpu_fence_driver_fini(adev);
2717         amdgpu_pm_sysfs_fini(adev);
2718         amdgpu_fbdev_fini(adev);
2719         r = amdgpu_device_ip_fini(adev);
2720         if (adev->firmware.gpu_info_fw) {
2721                 release_firmware(adev->firmware.gpu_info_fw);
2722                 adev->firmware.gpu_info_fw = NULL;
2723         }
2724         adev->accel_working = false;
2725         cancel_delayed_work_sync(&adev->late_init_work);
2726         /* free i2c buses */
2727         if (!amdgpu_device_has_dc_support(adev))
2728                 amdgpu_i2c_fini(adev);
2729
2730         if (amdgpu_emu_mode != 1)
2731                 amdgpu_atombios_fini(adev);
2732
2733         kfree(adev->bios);
2734         adev->bios = NULL;
2735         if (!pci_is_thunderbolt_attached(adev->pdev))
2736                 vga_switcheroo_unregister_client(adev->pdev);
2737         if (adev->flags & AMD_IS_PX)
2738                 vga_switcheroo_fini_domain_pm_ops(adev->dev);
2739         vga_client_register(adev->pdev, NULL, NULL, NULL);
2740         if (adev->rio_mem)
2741                 pci_iounmap(adev->pdev, adev->rio_mem);
2742         adev->rio_mem = NULL;
2743         iounmap(adev->rmmio);
2744         adev->rmmio = NULL;
2745         amdgpu_device_doorbell_fini(adev);
2746         amdgpu_debugfs_regs_cleanup(adev);
2747 }
2748
2749
2750 /*
2751  * Suspend & resume.
2752  */
2753 /**
2754  * amdgpu_device_suspend - initiate device suspend
2755  *
2756  * @dev: drm dev pointer
2757  * @suspend: suspend state
2758  * @fbcon : notify the fbdev of suspend
2759  *
2760  * Puts the hw in the suspend state (all asics).
2761  * Returns 0 for success or an error on failure.
2762  * Called at driver suspend.
2763  */
2764 int amdgpu_device_suspend(struct drm_device *dev, bool suspend, bool fbcon)
2765 {
2766         struct amdgpu_device *adev;
2767         struct drm_crtc *crtc;
2768         struct drm_connector *connector;
2769         int r;
2770
2771         if (dev == NULL || dev->dev_private == NULL) {
2772                 return -ENODEV;
2773         }
2774
2775         adev = dev->dev_private;
2776
2777         if (dev->switch_power_state == DRM_SWITCH_POWER_OFF)
2778                 return 0;
2779
2780         adev->in_suspend = true;
2781         drm_kms_helper_poll_disable(dev);
2782
2783         if (fbcon)
2784                 amdgpu_fbdev_set_suspend(adev, 1);
2785
2786         cancel_delayed_work_sync(&adev->late_init_work);
2787
2788         if (!amdgpu_device_has_dc_support(adev)) {
2789                 /* turn off display hw */
2790                 drm_modeset_lock_all(dev);
2791                 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
2792                         drm_helper_connector_dpms(connector, DRM_MODE_DPMS_OFF);
2793                 }
2794                 drm_modeset_unlock_all(dev);
2795                         /* unpin the front buffers and cursors */
2796                 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
2797                         struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc);
2798                         struct drm_framebuffer *fb = crtc->primary->fb;
2799                         struct amdgpu_bo *robj;
2800
2801                         if (amdgpu_crtc->cursor_bo) {
2802                                 struct amdgpu_bo *aobj = gem_to_amdgpu_bo(amdgpu_crtc->cursor_bo);
2803                                 r = amdgpu_bo_reserve(aobj, true);
2804                                 if (r == 0) {
2805                                         amdgpu_bo_unpin(aobj);
2806                                         amdgpu_bo_unreserve(aobj);
2807                                 }
2808                         }
2809
2810                         if (fb == NULL || fb->obj[0] == NULL) {
2811                                 continue;
2812                         }
2813                         robj = gem_to_amdgpu_bo(fb->obj[0]);
2814                         /* don't unpin kernel fb objects */
2815                         if (!amdgpu_fbdev_robj_is_fb(adev, robj)) {
2816                                 r = amdgpu_bo_reserve(robj, true);
2817                                 if (r == 0) {
2818                                         amdgpu_bo_unpin(robj);
2819                                         amdgpu_bo_unreserve(robj);
2820                                 }
2821                         }
2822                 }
2823         }
2824
2825         amdgpu_amdkfd_suspend(adev);
2826
2827         r = amdgpu_device_ip_suspend_phase1(adev);
2828
2829         /* evict vram memory */
2830         amdgpu_bo_evict_vram(adev);
2831
2832         amdgpu_fence_driver_suspend(adev);
2833
2834         r = amdgpu_device_ip_suspend_phase2(adev);
2835
2836         /* evict remaining vram memory
2837          * This second call to evict vram is to evict the gart page table
2838          * using the CPU.
2839          */
2840         amdgpu_bo_evict_vram(adev);
2841
2842         pci_save_state(dev->pdev);
2843         if (suspend) {
2844                 /* Shut down the device */
2845                 pci_disable_device(dev->pdev);
2846                 pci_set_power_state(dev->pdev, PCI_D3hot);
2847         } else {
2848                 r = amdgpu_asic_reset(adev);
2849                 if (r)
2850                         DRM_ERROR("amdgpu asic reset failed\n");
2851         }
2852
2853         return 0;
2854 }
2855
2856 /**
2857  * amdgpu_device_resume - initiate device resume
2858  *
2859  * @dev: drm dev pointer
2860  * @resume: resume state
2861  * @fbcon : notify the fbdev of resume
2862  *
2863  * Bring the hw back to operating state (all asics).
2864  * Returns 0 for success or an error on failure.
2865  * Called at driver resume.
2866  */
2867 int amdgpu_device_resume(struct drm_device *dev, bool resume, bool fbcon)
2868 {
2869         struct drm_connector *connector;
2870         struct amdgpu_device *adev = dev->dev_private;
2871         struct drm_crtc *crtc;
2872         int r = 0;
2873
2874         if (dev->switch_power_state == DRM_SWITCH_POWER_OFF)
2875                 return 0;
2876
2877         if (resume) {
2878                 pci_set_power_state(dev->pdev, PCI_D0);
2879                 pci_restore_state(dev->pdev);
2880                 r = pci_enable_device(dev->pdev);
2881                 if (r)
2882                         return r;
2883         }
2884
2885         /* post card */
2886         if (amdgpu_device_need_post(adev)) {
2887                 r = amdgpu_atom_asic_init(adev->mode_info.atom_context);
2888                 if (r)
2889                         DRM_ERROR("amdgpu asic init failed\n");
2890         }
2891
2892         r = amdgpu_device_ip_resume(adev);
2893         if (r) {
2894                 DRM_ERROR("amdgpu_device_ip_resume failed (%d).\n", r);
2895                 return r;
2896         }
2897         amdgpu_fence_driver_resume(adev);
2898
2899
2900         r = amdgpu_device_ip_late_init(adev);
2901         if (r)
2902                 return r;
2903
2904         if (!amdgpu_device_has_dc_support(adev)) {
2905                 /* pin cursors */
2906                 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
2907                         struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc);
2908
2909                         if (amdgpu_crtc->cursor_bo) {
2910                                 struct amdgpu_bo *aobj = gem_to_amdgpu_bo(amdgpu_crtc->cursor_bo);
2911                                 r = amdgpu_bo_reserve(aobj, true);
2912                                 if (r == 0) {
2913                                         r = amdgpu_bo_pin(aobj, AMDGPU_GEM_DOMAIN_VRAM);
2914                                         if (r != 0)
2915                                                 DRM_ERROR("Failed to pin cursor BO (%d)\n", r);
2916                                         amdgpu_crtc->cursor_addr = amdgpu_bo_gpu_offset(aobj);
2917                                         amdgpu_bo_unreserve(aobj);
2918                                 }
2919                         }
2920                 }
2921         }
2922         r = amdgpu_amdkfd_resume(adev);
2923         if (r)
2924                 return r;
2925
2926         /* Make sure IB tests flushed */
2927         flush_delayed_work(&adev->late_init_work);
2928
2929         /* blat the mode back in */
2930         if (fbcon) {
2931                 if (!amdgpu_device_has_dc_support(adev)) {
2932                         /* pre DCE11 */
2933                         drm_helper_resume_force_mode(dev);
2934
2935                         /* turn on display hw */
2936                         drm_modeset_lock_all(dev);
2937                         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
2938                                 drm_helper_connector_dpms(connector, DRM_MODE_DPMS_ON);
2939                         }
2940                         drm_modeset_unlock_all(dev);
2941                 }
2942                 amdgpu_fbdev_set_suspend(adev, 0);
2943         }
2944
2945         drm_kms_helper_poll_enable(dev);
2946
2947         /*
2948          * Most of the connector probing functions try to acquire runtime pm
2949          * refs to ensure that the GPU is powered on when connector polling is
2950          * performed. Since we're calling this from a runtime PM callback,
2951          * trying to acquire rpm refs will cause us to deadlock.
2952          *
2953          * Since we're guaranteed to be holding the rpm lock, it's safe to
2954          * temporarily disable the rpm helpers so this doesn't deadlock us.
2955          */
2956 #ifdef CONFIG_PM
2957         dev->dev->power.disable_depth++;
2958 #endif
2959         if (!amdgpu_device_has_dc_support(adev))
2960                 drm_helper_hpd_irq_event(dev);
2961         else
2962                 drm_kms_helper_hotplug_event(dev);
2963 #ifdef CONFIG_PM
2964         dev->dev->power.disable_depth--;
2965 #endif
2966         adev->in_suspend = false;
2967
2968         return 0;
2969 }
2970
2971 /**
2972  * amdgpu_device_ip_check_soft_reset - did soft reset succeed
2973  *
2974  * @adev: amdgpu_device pointer
2975  *
2976  * The list of all the hardware IPs that make up the asic is walked and
2977  * the check_soft_reset callbacks are run.  check_soft_reset determines
2978  * if the asic is still hung or not.
2979  * Returns true if any of the IPs are still in a hung state, false if not.
2980  */
2981 static bool amdgpu_device_ip_check_soft_reset(struct amdgpu_device *adev)
2982 {
2983         int i;
2984         bool asic_hang = false;
2985
2986         if (amdgpu_sriov_vf(adev))
2987                 return true;
2988
2989         if (amdgpu_asic_need_full_reset(adev))
2990                 return true;
2991
2992         for (i = 0; i < adev->num_ip_blocks; i++) {
2993                 if (!adev->ip_blocks[i].status.valid)
2994                         continue;
2995                 if (adev->ip_blocks[i].version->funcs->check_soft_reset)
2996                         adev->ip_blocks[i].status.hang =
2997                                 adev->ip_blocks[i].version->funcs->check_soft_reset(adev);
2998                 if (adev->ip_blocks[i].status.hang) {
2999                         DRM_INFO("IP block:%s is hung!\n", adev->ip_blocks[i].version->funcs->name);
3000                         asic_hang = true;
3001                 }
3002         }
3003         return asic_hang;
3004 }
3005
3006 /**
3007  * amdgpu_device_ip_pre_soft_reset - prepare for soft reset
3008  *
3009  * @adev: amdgpu_device pointer
3010  *
3011  * The list of all the hardware IPs that make up the asic is walked and the
3012  * pre_soft_reset callbacks are run if the block is hung.  pre_soft_reset
3013  * handles any IP specific hardware or software state changes that are
3014  * necessary for a soft reset to succeed.
3015  * Returns 0 on success, negative error code on failure.
3016  */
3017 static int amdgpu_device_ip_pre_soft_reset(struct amdgpu_device *adev)
3018 {
3019         int i, r = 0;
3020
3021         for (i = 0; i < adev->num_ip_blocks; i++) {
3022                 if (!adev->ip_blocks[i].status.valid)
3023                         continue;
3024                 if (adev->ip_blocks[i].status.hang &&
3025                     adev->ip_blocks[i].version->funcs->pre_soft_reset) {
3026                         r = adev->ip_blocks[i].version->funcs->pre_soft_reset(adev);
3027                         if (r)
3028                                 return r;
3029                 }
3030         }
3031
3032         return 0;
3033 }
3034
3035 /**
3036  * amdgpu_device_ip_need_full_reset - check if a full asic reset is needed
3037  *
3038  * @adev: amdgpu_device pointer
3039  *
3040  * Some hardware IPs cannot be soft reset.  If they are hung, a full gpu
3041  * reset is necessary to recover.
3042  * Returns true if a full asic reset is required, false if not.
3043  */
3044 static bool amdgpu_device_ip_need_full_reset(struct amdgpu_device *adev)
3045 {
3046         int i;
3047
3048         if (amdgpu_asic_need_full_reset(adev))
3049                 return true;
3050
3051         for (i = 0; i < adev->num_ip_blocks; i++) {
3052                 if (!adev->ip_blocks[i].status.valid)
3053                         continue;
3054                 if ((adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_GMC) ||
3055                     (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_SMC) ||
3056                     (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_ACP) ||
3057                     (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_DCE) ||
3058                      adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_PSP) {
3059                         if (adev->ip_blocks[i].status.hang) {
3060                                 DRM_INFO("Some block need full reset!\n");
3061                                 return true;
3062                         }
3063                 }
3064         }
3065         return false;
3066 }
3067
3068 /**
3069  * amdgpu_device_ip_soft_reset - do a soft reset
3070  *
3071  * @adev: amdgpu_device pointer
3072  *
3073  * The list of all the hardware IPs that make up the asic is walked and the
3074  * soft_reset callbacks are run if the block is hung.  soft_reset handles any
3075  * IP specific hardware or software state changes that are necessary to soft
3076  * reset the IP.
3077  * Returns 0 on success, negative error code on failure.
3078  */
3079 static int amdgpu_device_ip_soft_reset(struct amdgpu_device *adev)
3080 {
3081         int i, r = 0;
3082
3083         for (i = 0; i < adev->num_ip_blocks; i++) {
3084                 if (!adev->ip_blocks[i].status.valid)
3085                         continue;
3086                 if (adev->ip_blocks[i].status.hang &&
3087                     adev->ip_blocks[i].version->funcs->soft_reset) {
3088                         r = adev->ip_blocks[i].version->funcs->soft_reset(adev);
3089                         if (r)
3090                                 return r;
3091                 }
3092         }
3093
3094         return 0;
3095 }
3096
3097 /**
3098  * amdgpu_device_ip_post_soft_reset - clean up from soft reset
3099  *
3100  * @adev: amdgpu_device pointer
3101  *
3102  * The list of all the hardware IPs that make up the asic is walked and the
3103  * post_soft_reset callbacks are run if the asic was hung.  post_soft_reset
3104  * handles any IP specific hardware or software state changes that are
3105  * necessary after the IP has been soft reset.
3106  * Returns 0 on success, negative error code on failure.
3107  */
3108 static int amdgpu_device_ip_post_soft_reset(struct amdgpu_device *adev)
3109 {
3110         int i, r = 0;
3111
3112         for (i = 0; i < adev->num_ip_blocks; i++) {
3113                 if (!adev->ip_blocks[i].status.valid)
3114                         continue;
3115                 if (adev->ip_blocks[i].status.hang &&
3116                     adev->ip_blocks[i].version->funcs->post_soft_reset)
3117                         r = adev->ip_blocks[i].version->funcs->post_soft_reset(adev);
3118                 if (r)
3119                         return r;
3120         }
3121
3122         return 0;
3123 }
3124
3125 /**
3126  * amdgpu_device_recover_vram - Recover some VRAM contents
3127  *
3128  * @adev: amdgpu_device pointer
3129  *
3130  * Restores the contents of VRAM buffers from the shadows in GTT.  Used to
3131  * restore things like GPUVM page tables after a GPU reset where
3132  * the contents of VRAM might be lost.
3133  *
3134  * Returns:
3135  * 0 on success, negative error code on failure.
3136  */
3137 static int amdgpu_device_recover_vram(struct amdgpu_device *adev)
3138 {
3139         struct dma_fence *fence = NULL, *next = NULL;
3140         struct amdgpu_bo *shadow;
3141         long r = 1, tmo;
3142
3143         if (amdgpu_sriov_runtime(adev))
3144                 tmo = msecs_to_jiffies(8000);
3145         else
3146                 tmo = msecs_to_jiffies(100);
3147
3148         DRM_INFO("recover vram bo from shadow start\n");
3149         mutex_lock(&adev->shadow_list_lock);
3150         list_for_each_entry(shadow, &adev->shadow_list, shadow_list) {
3151
3152                 /* No need to recover an evicted BO */
3153                 if (shadow->tbo.mem.mem_type != TTM_PL_TT ||
3154                     shadow->parent->tbo.mem.mem_type != TTM_PL_VRAM)
3155                         continue;
3156
3157                 r = amdgpu_bo_restore_shadow(shadow, &next);
3158                 if (r)
3159                         break;
3160
3161                 if (fence) {
3162                         r = dma_fence_wait_timeout(fence, false, tmo);
3163                         dma_fence_put(fence);
3164                         fence = next;
3165                         if (r <= 0)
3166                                 break;
3167                 } else {
3168                         fence = next;
3169                 }
3170         }
3171         mutex_unlock(&adev->shadow_list_lock);
3172
3173         if (fence)
3174                 tmo = dma_fence_wait_timeout(fence, false, tmo);
3175         dma_fence_put(fence);
3176
3177         if (r <= 0 || tmo <= 0) {
3178                 DRM_ERROR("recover vram bo from shadow failed\n");
3179                 return -EIO;
3180         }
3181
3182         DRM_INFO("recover vram bo from shadow done\n");
3183         return 0;
3184 }
3185
3186
3187 /**
3188  * amdgpu_device_reset_sriov - reset ASIC for SR-IOV vf
3189  *
3190  * @adev: amdgpu device pointer
3191  * @from_hypervisor: request from hypervisor
3192  *
3193  * do VF FLR and reinitialize Asic
3194  * return 0 means succeeded otherwise failed
3195  */
3196 static int amdgpu_device_reset_sriov(struct amdgpu_device *adev,
3197                                      bool from_hypervisor)
3198 {
3199         int r;
3200
3201         if (from_hypervisor)
3202                 r = amdgpu_virt_request_full_gpu(adev, true);
3203         else
3204                 r = amdgpu_virt_reset_gpu(adev);
3205         if (r)
3206                 return r;
3207
3208         /* Resume IP prior to SMC */
3209         r = amdgpu_device_ip_reinit_early_sriov(adev);
3210         if (r)
3211                 goto error;
3212
3213         /* we need recover gart prior to run SMC/CP/SDMA resume */
3214         amdgpu_gtt_mgr_recover(&adev->mman.bdev.man[TTM_PL_TT]);
3215
3216         r = amdgpu_device_fw_loading(adev);
3217         if (r)
3218                 return r;
3219
3220         /* now we are okay to resume SMC/CP/SDMA */
3221         r = amdgpu_device_ip_reinit_late_sriov(adev);
3222         if (r)
3223                 goto error;
3224
3225         amdgpu_irq_gpu_reset_resume_helper(adev);
3226         r = amdgpu_ib_ring_tests(adev);
3227
3228 error:
3229         amdgpu_virt_release_full_gpu(adev, true);
3230         if (!r && adev->virt.gim_feature & AMDGIM_FEATURE_GIM_FLR_VRAMLOST) {
3231                 atomic_inc(&adev->vram_lost_counter);
3232                 r = amdgpu_device_recover_vram(adev);
3233         }
3234
3235         return r;
3236 }
3237
3238 /**
3239  * amdgpu_device_should_recover_gpu - check if we should try GPU recovery
3240  *
3241  * @adev: amdgpu device pointer
3242  *
3243  * Check amdgpu_gpu_recovery and SRIOV status to see if we should try to recover
3244  * a hung GPU.
3245  */
3246 bool amdgpu_device_should_recover_gpu(struct amdgpu_device *adev)
3247 {
3248         if (!amdgpu_device_ip_check_soft_reset(adev)) {
3249                 DRM_INFO("Timeout, but no hardware hang detected.\n");
3250                 return false;
3251         }
3252
3253         if (amdgpu_gpu_recovery == 0)
3254                 goto disabled;
3255
3256         if (amdgpu_sriov_vf(adev))
3257                 return true;
3258
3259         if (amdgpu_gpu_recovery == -1) {
3260                 switch (adev->asic_type) {
3261                 case CHIP_BONAIRE:
3262                 case CHIP_HAWAII:
3263                 case CHIP_TOPAZ:
3264                 case CHIP_TONGA:
3265                 case CHIP_FIJI:
3266                 case CHIP_POLARIS10:
3267                 case CHIP_POLARIS11:
3268                 case CHIP_POLARIS12:
3269                 case CHIP_VEGAM:
3270                 case CHIP_VEGA20:
3271                 case CHIP_VEGA10:
3272                 case CHIP_VEGA12:
3273                         break;
3274                 default:
3275                         goto disabled;
3276                 }
3277         }
3278
3279         return true;
3280
3281 disabled:
3282                 DRM_INFO("GPU recovery disabled.\n");
3283                 return false;
3284 }
3285
3286
3287 static int amdgpu_device_pre_asic_reset(struct amdgpu_device *adev,
3288                                         struct amdgpu_job *job,
3289                                         bool *need_full_reset_arg)
3290 {
3291         int i, r = 0;
3292         bool need_full_reset  = *need_full_reset_arg;
3293
3294         /* block all schedulers and reset given job's ring */
3295         for (i = 0; i < AMDGPU_MAX_RINGS; ++i) {
3296                 struct amdgpu_ring *ring = adev->rings[i];
3297
3298                 if (!ring || !ring->sched.thread)
3299                         continue;
3300
3301                 kthread_park(ring->sched.thread);
3302
3303                 if (job && job->base.sched != &ring->sched)
3304                         continue;
3305
3306                 drm_sched_hw_job_reset(&ring->sched, job ? &job->base : NULL);
3307
3308                 /* after all hw jobs are reset, hw fence is meaningless, so force_completion */
3309                 amdgpu_fence_driver_force_completion(ring);
3310         }
3311
3312
3313
3314         if (!amdgpu_sriov_vf(adev)) {
3315
3316                 if (!need_full_reset)
3317                         need_full_reset = amdgpu_device_ip_need_full_reset(adev);
3318
3319                 if (!need_full_reset) {
3320                         amdgpu_device_ip_pre_soft_reset(adev);
3321                         r = amdgpu_device_ip_soft_reset(adev);
3322                         amdgpu_device_ip_post_soft_reset(adev);
3323                         if (r || amdgpu_device_ip_check_soft_reset(adev)) {
3324                                 DRM_INFO("soft reset failed, will fallback to full reset!\n");
3325                                 need_full_reset = true;
3326                         }
3327                 }
3328
3329                 if (need_full_reset)
3330                         r = amdgpu_device_ip_suspend(adev);
3331
3332                 *need_full_reset_arg = need_full_reset;
3333         }
3334
3335         return r;
3336 }
3337
3338 static int amdgpu_do_asic_reset(struct amdgpu_hive_info *hive,
3339                                struct list_head *device_list_handle,
3340                                bool *need_full_reset_arg)
3341 {
3342         struct amdgpu_device *tmp_adev = NULL;
3343         bool need_full_reset = *need_full_reset_arg, vram_lost = false;
3344         int r = 0;
3345
3346         /*
3347          * ASIC reset has to be done on all HGMI hive nodes ASAP
3348          * to allow proper links negotiation in FW (within 1 sec)
3349          */
3350         if (need_full_reset) {
3351                 list_for_each_entry(tmp_adev, device_list_handle, gmc.xgmi.head) {
3352                         /* For XGMI run all resets in parallel to speed up the process */
3353                         if (tmp_adev->gmc.xgmi.num_physical_nodes > 1) {
3354                                 if (!queue_work(system_highpri_wq, &tmp_adev->xgmi_reset_work))
3355                                         r = -EALREADY;
3356                         } else
3357                                 r = amdgpu_asic_reset(tmp_adev);
3358
3359                         if (r) {
3360                                 DRM_ERROR("ASIC reset failed with err r, %d for drm dev, %s",
3361                                          r, tmp_adev->ddev->unique);
3362                                 break;
3363                         }
3364                 }
3365
3366                 /* For XGMI wait for all PSP resets to complete before proceed */
3367                 if (!r) {
3368                         list_for_each_entry(tmp_adev, device_list_handle,
3369                                             gmc.xgmi.head) {
3370                                 if (tmp_adev->gmc.xgmi.num_physical_nodes > 1) {
3371                                         flush_work(&tmp_adev->xgmi_reset_work);
3372                                         r = tmp_adev->asic_reset_res;
3373                                         if (r)
3374                                                 break;
3375                                 }
3376                         }
3377                 }
3378         }
3379
3380
3381         list_for_each_entry(tmp_adev, device_list_handle, gmc.xgmi.head) {
3382                 if (need_full_reset) {
3383                         /* post card */
3384                         if (amdgpu_atom_asic_init(tmp_adev->mode_info.atom_context))
3385                                 DRM_WARN("asic atom init failed!");
3386
3387                         if (!r) {
3388                                 dev_info(tmp_adev->dev, "GPU reset succeeded, trying to resume\n");
3389                                 r = amdgpu_device_ip_resume_phase1(tmp_adev);
3390                                 if (r)
3391                                         goto out;
3392
3393                                 vram_lost = amdgpu_device_check_vram_lost(tmp_adev);
3394                                 if (vram_lost) {
3395                                         DRM_ERROR("VRAM is lost!\n");
3396                                         atomic_inc(&tmp_adev->vram_lost_counter);
3397                                 }
3398
3399                                 r = amdgpu_gtt_mgr_recover(
3400                                         &tmp_adev->mman.bdev.man[TTM_PL_TT]);
3401                                 if (r)
3402                                         goto out;
3403
3404                                 r = amdgpu_device_fw_loading(tmp_adev);
3405                                 if (r)
3406                                         return r;
3407
3408                                 r = amdgpu_device_ip_resume_phase2(tmp_adev);
3409                                 if (r)
3410                                         goto out;
3411
3412                                 if (vram_lost)
3413                                         amdgpu_device_fill_reset_magic(tmp_adev);
3414
3415                                 /* Update PSP FW topology after reset */
3416                                 if (hive && tmp_adev->gmc.xgmi.num_physical_nodes > 1)
3417                                         r = amdgpu_xgmi_update_topology(hive, tmp_adev);
3418                         }
3419                 }
3420
3421
3422 out:
3423                 if (!r) {
3424                         amdgpu_irq_gpu_reset_resume_helper(tmp_adev);
3425                         r = amdgpu_ib_ring_tests(tmp_adev);
3426                         if (r) {
3427                                 dev_err(tmp_adev->dev, "ib ring test failed (%d).\n", r);
3428                                 r = amdgpu_device_ip_suspend(tmp_adev);
3429                                 need_full_reset = true;
3430                                 r = -EAGAIN;
3431                                 goto end;
3432                         }
3433                 }
3434
3435                 if (!r)
3436                         r = amdgpu_device_recover_vram(tmp_adev);
3437                 else
3438                         tmp_adev->asic_reset_res = r;
3439         }
3440
3441 end:
3442         *need_full_reset_arg = need_full_reset;
3443         return r;
3444 }
3445
3446 static void amdgpu_device_post_asic_reset(struct amdgpu_device *adev,
3447                                           struct amdgpu_job *job)
3448 {
3449         int i;
3450
3451         for (i = 0; i < AMDGPU_MAX_RINGS; ++i) {
3452                 struct amdgpu_ring *ring = adev->rings[i];
3453
3454                 if (!ring || !ring->sched.thread)
3455                         continue;
3456
3457                 /* only need recovery sched of the given job's ring
3458                  * or all rings (in the case @job is NULL)
3459                  * after above amdgpu_reset accomplished
3460                  */
3461                 if ((!job || job->base.sched == &ring->sched) && !adev->asic_reset_res)
3462                         drm_sched_job_recovery(&ring->sched);
3463
3464                 kthread_unpark(ring->sched.thread);
3465         }
3466
3467         if (!amdgpu_device_has_dc_support(adev)) {
3468                 drm_helper_resume_force_mode(adev->ddev);
3469         }
3470
3471         adev->asic_reset_res = 0;
3472 }
3473
3474 static void amdgpu_device_lock_adev(struct amdgpu_device *adev)
3475 {
3476         mutex_lock(&adev->lock_reset);
3477         atomic_inc(&adev->gpu_reset_counter);
3478         adev->in_gpu_reset = 1;
3479         /* Block kfd */
3480         amdgpu_amdkfd_pre_reset(adev);
3481 }
3482
3483 static void amdgpu_device_unlock_adev(struct amdgpu_device *adev)
3484 {
3485         /*unlock kfd */
3486         amdgpu_amdkfd_post_reset(adev);
3487         amdgpu_vf_error_trans_all(adev);
3488         adev->in_gpu_reset = 0;
3489         mutex_unlock(&adev->lock_reset);
3490 }
3491
3492
3493 /**
3494  * amdgpu_device_gpu_recover - reset the asic and recover scheduler
3495  *
3496  * @adev: amdgpu device pointer
3497  * @job: which job trigger hang
3498  *
3499  * Attempt to reset the GPU if it has hung (all asics).
3500  * Attempt to do soft-reset or full-reset and reinitialize Asic
3501  * Returns 0 for success or an error on failure.
3502  */
3503
3504 int amdgpu_device_gpu_recover(struct amdgpu_device *adev,
3505                               struct amdgpu_job *job)
3506 {
3507         int r;
3508         struct amdgpu_hive_info *hive = NULL;
3509         bool need_full_reset = false;
3510         struct amdgpu_device *tmp_adev = NULL;
3511         struct list_head device_list, *device_list_handle =  NULL;
3512
3513         INIT_LIST_HEAD(&device_list);
3514
3515         dev_info(adev->dev, "GPU reset begin!\n");
3516
3517         /*
3518          * In case of XGMI hive disallow concurrent resets to be triggered
3519          * by different nodes. No point also since the one node already executing
3520          * reset will also reset all the other nodes in the hive.
3521          */
3522         hive = amdgpu_get_xgmi_hive(adev);
3523         if (hive && adev->gmc.xgmi.num_physical_nodes > 1 &&
3524             !mutex_trylock(&hive->hive_lock))
3525                 return 0;
3526
3527         /* Start with adev pre asic reset first for soft reset check.*/
3528         amdgpu_device_lock_adev(adev);
3529         r = amdgpu_device_pre_asic_reset(adev,
3530                                          job,
3531                                          &need_full_reset);
3532         if (r) {
3533                 /*TODO Should we stop ?*/
3534                 DRM_ERROR("GPU pre asic reset failed with err, %d for drm dev, %s ",
3535                           r, adev->ddev->unique);
3536                 adev->asic_reset_res = r;
3537         }
3538
3539         /* Build list of devices to reset */
3540         if  (need_full_reset && adev->gmc.xgmi.num_physical_nodes > 1) {
3541                 if (!hive) {
3542                         amdgpu_device_unlock_adev(adev);
3543                         return -ENODEV;
3544                 }
3545
3546                 /*
3547                  * In case we are in XGMI hive mode device reset is done for all the
3548                  * nodes in the hive to retrain all XGMI links and hence the reset
3549                  * sequence is executed in loop on all nodes.
3550                  */
3551                 device_list_handle = &hive->device_list;
3552         } else {
3553                 list_add_tail(&adev->gmc.xgmi.head, &device_list);
3554                 device_list_handle = &device_list;
3555         }
3556
3557 retry:  /* Rest of adevs pre asic reset from XGMI hive. */
3558         list_for_each_entry(tmp_adev, device_list_handle, gmc.xgmi.head) {
3559
3560                 if (tmp_adev == adev)
3561                         continue;
3562
3563                 amdgpu_device_lock_adev(tmp_adev);
3564                 r = amdgpu_device_pre_asic_reset(tmp_adev,
3565                                                  NULL,
3566                                                  &need_full_reset);
3567                 /*TODO Should we stop ?*/
3568                 if (r) {
3569                         DRM_ERROR("GPU pre asic reset failed with err, %d for drm dev, %s ",
3570                                   r, tmp_adev->ddev->unique);
3571                         tmp_adev->asic_reset_res = r;
3572                 }
3573         }
3574
3575         /* Actual ASIC resets if needed.*/
3576         /* TODO Implement XGMI hive reset logic for SRIOV */
3577         if (amdgpu_sriov_vf(adev)) {
3578                 r = amdgpu_device_reset_sriov(adev, job ? false : true);
3579                 if (r)
3580                         adev->asic_reset_res = r;
3581         } else {
3582                 r  = amdgpu_do_asic_reset(hive, device_list_handle, &need_full_reset);
3583                 if (r && r == -EAGAIN)
3584                         goto retry;
3585         }
3586
3587         /* Post ASIC reset for all devs .*/
3588         list_for_each_entry(tmp_adev, device_list_handle, gmc.xgmi.head) {
3589                 amdgpu_device_post_asic_reset(tmp_adev, tmp_adev == adev ? job : NULL);
3590
3591                 if (r) {
3592                         /* bad news, how to tell it to userspace ? */
3593                         dev_info(tmp_adev->dev, "GPU reset(%d) failed\n", atomic_read(&adev->gpu_reset_counter));
3594                         amdgpu_vf_error_put(tmp_adev, AMDGIM_ERROR_VF_GPU_RESET_FAIL, 0, r);
3595                 } else {
3596                         dev_info(tmp_adev->dev, "GPU reset(%d) succeeded!\n", atomic_read(&adev->gpu_reset_counter));
3597                 }
3598
3599                 amdgpu_device_unlock_adev(tmp_adev);
3600         }
3601
3602         if (hive && adev->gmc.xgmi.num_physical_nodes > 1)
3603                 mutex_unlock(&hive->hive_lock);
3604
3605         if (r)
3606                 dev_info(adev->dev, "GPU reset end with ret = %d\n", r);
3607         return r;
3608 }
3609
3610 /**
3611  * amdgpu_device_get_pcie_info - fence pcie info about the PCIE slot
3612  *
3613  * @adev: amdgpu_device pointer
3614  *
3615  * Fetchs and stores in the driver the PCIE capabilities (gen speed
3616  * and lanes) of the slot the device is in. Handles APUs and
3617  * virtualized environments where PCIE config space may not be available.
3618  */
3619 static void amdgpu_device_get_pcie_info(struct amdgpu_device *adev)
3620 {
3621         struct pci_dev *pdev;
3622         enum pci_bus_speed speed_cap;
3623         enum pcie_link_width link_width;
3624
3625         if (amdgpu_pcie_gen_cap)
3626                 adev->pm.pcie_gen_mask = amdgpu_pcie_gen_cap;
3627
3628         if (amdgpu_pcie_lane_cap)
3629                 adev->pm.pcie_mlw_mask = amdgpu_pcie_lane_cap;
3630
3631         /* covers APUs as well */
3632         if (pci_is_root_bus(adev->pdev->bus)) {
3633                 if (adev->pm.pcie_gen_mask == 0)
3634                         adev->pm.pcie_gen_mask = AMDGPU_DEFAULT_PCIE_GEN_MASK;
3635                 if (adev->pm.pcie_mlw_mask == 0)
3636                         adev->pm.pcie_mlw_mask = AMDGPU_DEFAULT_PCIE_MLW_MASK;
3637                 return;
3638         }
3639
3640         if (adev->pm.pcie_gen_mask == 0) {
3641                 /* asic caps */
3642                 pdev = adev->pdev;
3643                 speed_cap = pcie_get_speed_cap(pdev);
3644                 if (speed_cap == PCI_SPEED_UNKNOWN) {
3645                         adev->pm.pcie_gen_mask |= (CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN1 |
3646                                                   CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN2 |
3647                                                   CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN3);
3648                 } else {
3649                         if (speed_cap == PCIE_SPEED_16_0GT)
3650                                 adev->pm.pcie_gen_mask |= (CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN1 |
3651                                                           CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN2 |
3652                                                           CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN3 |
3653                                                           CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN4);
3654                         else if (speed_cap == PCIE_SPEED_8_0GT)
3655                                 adev->pm.pcie_gen_mask |= (CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN1 |
3656                                                           CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN2 |
3657                                                           CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN3);
3658                         else if (speed_cap == PCIE_SPEED_5_0GT)
3659                                 adev->pm.pcie_gen_mask |= (CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN1 |
3660                                                           CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN2);
3661                         else
3662                                 adev->pm.pcie_gen_mask |= CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN1;
3663                 }
3664                 /* platform caps */
3665                 pdev = adev->ddev->pdev->bus->self;
3666                 speed_cap = pcie_get_speed_cap(pdev);
3667                 if (speed_cap == PCI_SPEED_UNKNOWN) {
3668                         adev->pm.pcie_gen_mask |= (CAIL_PCIE_LINK_SPEED_SUPPORT_GEN1 |
3669                                                    CAIL_PCIE_LINK_SPEED_SUPPORT_GEN2);
3670                 } else {
3671                         if (speed_cap == PCIE_SPEED_16_0GT)
3672                                 adev->pm.pcie_gen_mask |= (CAIL_PCIE_LINK_SPEED_SUPPORT_GEN1 |
3673                                                            CAIL_PCIE_LINK_SPEED_SUPPORT_GEN2 |
3674                                                            CAIL_PCIE_LINK_SPEED_SUPPORT_GEN3 |
3675                                                            CAIL_PCIE_LINK_SPEED_SUPPORT_GEN4);
3676                         else if (speed_cap == PCIE_SPEED_8_0GT)
3677                                 adev->pm.pcie_gen_mask |= (CAIL_PCIE_LINK_SPEED_SUPPORT_GEN1 |
3678                                                            CAIL_PCIE_LINK_SPEED_SUPPORT_GEN2 |
3679                                                            CAIL_PCIE_LINK_SPEED_SUPPORT_GEN3);
3680                         else if (speed_cap == PCIE_SPEED_5_0GT)
3681                                 adev->pm.pcie_gen_mask |= (CAIL_PCIE_LINK_SPEED_SUPPORT_GEN1 |
3682                                                            CAIL_PCIE_LINK_SPEED_SUPPORT_GEN2);
3683                         else
3684                                 adev->pm.pcie_gen_mask |= CAIL_PCIE_LINK_SPEED_SUPPORT_GEN1;
3685
3686                 }
3687         }
3688         if (adev->pm.pcie_mlw_mask == 0) {
3689                 pdev = adev->ddev->pdev->bus->self;
3690                 link_width = pcie_get_width_cap(pdev);
3691                 if (link_width == PCIE_LNK_WIDTH_UNKNOWN) {
3692                         adev->pm.pcie_mlw_mask |= AMDGPU_DEFAULT_PCIE_MLW_MASK;
3693                 } else {
3694                         switch (link_width) {
3695                         case PCIE_LNK_X32:
3696                                 adev->pm.pcie_mlw_mask = (CAIL_PCIE_LINK_WIDTH_SUPPORT_X32 |
3697                                                           CAIL_PCIE_LINK_WIDTH_SUPPORT_X16 |
3698                                                           CAIL_PCIE_LINK_WIDTH_SUPPORT_X12 |
3699                                                           CAIL_PCIE_LINK_WIDTH_SUPPORT_X8 |
3700                                                           CAIL_PCIE_LINK_WIDTH_SUPPORT_X4 |
3701                                                           CAIL_PCIE_LINK_WIDTH_SUPPORT_X2 |
3702                                                           CAIL_PCIE_LINK_WIDTH_SUPPORT_X1);
3703                                 break;
3704                         case PCIE_LNK_X16:
3705                                 adev->pm.pcie_mlw_mask = (CAIL_PCIE_LINK_WIDTH_SUPPORT_X16 |
3706                                                           CAIL_PCIE_LINK_WIDTH_SUPPORT_X12 |
3707                                                           CAIL_PCIE_LINK_WIDTH_SUPPORT_X8 |
3708                                                           CAIL_PCIE_LINK_WIDTH_SUPPORT_X4 |
3709                                                           CAIL_PCIE_LINK_WIDTH_SUPPORT_X2 |
3710                                                           CAIL_PCIE_LINK_WIDTH_SUPPORT_X1);
3711                                 break;
3712                         case PCIE_LNK_X12:
3713                                 adev->pm.pcie_mlw_mask = (CAIL_PCIE_LINK_WIDTH_SUPPORT_X12 |
3714                                                           CAIL_PCIE_LINK_WIDTH_SUPPORT_X8 |
3715                                                           CAIL_PCIE_LINK_WIDTH_SUPPORT_X4 |
3716                                                           CAIL_PCIE_LINK_WIDTH_SUPPORT_X2 |
3717                                                           CAIL_PCIE_LINK_WIDTH_SUPPORT_X1);
3718                                 break;
3719                         case PCIE_LNK_X8:
3720                                 adev->pm.pcie_mlw_mask = (CAIL_PCIE_LINK_WIDTH_SUPPORT_X8 |
3721                                                           CAIL_PCIE_LINK_WIDTH_SUPPORT_X4 |
3722                                                           CAIL_PCIE_LINK_WIDTH_SUPPORT_X2 |
3723                                                           CAIL_PCIE_LINK_WIDTH_SUPPORT_X1);
3724                                 break;
3725                         case PCIE_LNK_X4:
3726                                 adev->pm.pcie_mlw_mask = (CAIL_PCIE_LINK_WIDTH_SUPPORT_X4 |
3727                                                           CAIL_PCIE_LINK_WIDTH_SUPPORT_X2 |
3728                                                           CAIL_PCIE_LINK_WIDTH_SUPPORT_X1);
3729                                 break;
3730                         case PCIE_LNK_X2:
3731                                 adev->pm.pcie_mlw_mask = (CAIL_PCIE_LINK_WIDTH_SUPPORT_X2 |
3732                                                           CAIL_PCIE_LINK_WIDTH_SUPPORT_X1);
3733                                 break;
3734                         case PCIE_LNK_X1:
3735                                 adev->pm.pcie_mlw_mask = CAIL_PCIE_LINK_WIDTH_SUPPORT_X1;
3736                                 break;
3737                         default:
3738                                 break;
3739                         }
3740                 }
3741         }
3742 }
3743