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/module.h>
  31 #include <linux/console.h>
  32 #include <linux/slab.h>
  33 #include <linux/iommu.h>
  34 #include <linux/pci.h>
  35 #include <linux/pci-p2pdma.h>
  36 #include <linux/apple-gmux.h>
  37
  38 #include <drm/drm_aperture.h>
  39 #include <drm/drm_atomic_helper.h>
  40 #include <drm/drm_crtc_helper.h>
  41 #include <drm/drm_fb_helper.h>
  42 #include <drm/drm_probe_helper.h>
  43 #include <drm/amdgpu_drm.h>
  44 #include <linux/device.h>
  45 #include <linux/vgaarb.h>
  46 #include <linux/vga_switcheroo.h>
  47 #include <linux/efi.h>
  48 #include "amdgpu.h"
  49 #include "amdgpu_trace.h"
  50 #include "amdgpu_i2c.h"
  51 #include "atom.h"
  52 #include "amdgpu_atombios.h"
  53 #include "amdgpu_atomfirmware.h"
  54 #include "amd_pcie.h"
  55 #ifdef CONFIG_DRM_AMDGPU_SI
  56 #include "si.h"
  57 #endif
  58 #ifdef CONFIG_DRM_AMDGPU_CIK
  59 #include "cik.h"
  60 #endif
  61 #include "vi.h"
  62 #include "soc15.h"
  63 #include "nv.h"
  64 #include "bif/bif_4_1_d.h"
  65 #include <linux/firmware.h>
  66 #include "amdgpu_vf_error.h"
  67
  68 #include "amdgpu_amdkfd.h"
  69 #include "amdgpu_pm.h"
  70
  71 #include "amdgpu_xgmi.h"
  72 #include "amdgpu_ras.h"
  73 #include "amdgpu_pmu.h"
  74 #include "amdgpu_fru_eeprom.h"
  75 #include "amdgpu_reset.h"
  76 #include "amdgpu_virt.h"
  77
  78 #include <linux/suspend.h>
  79 #include <drm/task_barrier.h>
  80 #include <linux/pm_runtime.h>
  81
  82 #include <drm/drm_drv.h>
  83
  84 #if IS_ENABLED(CONFIG_X86)
  85 #include <asm/intel-family.h>
  86 #endif
  87
  88 MODULE_FIRMWARE("amdgpu/vega10_gpu_info.bin");
  89 MODULE_FIRMWARE("amdgpu/vega12_gpu_info.bin");
  90 MODULE_FIRMWARE("amdgpu/raven_gpu_info.bin");
  91 MODULE_FIRMWARE("amdgpu/picasso_gpu_info.bin");
  92 MODULE_FIRMWARE("amdgpu/raven2_gpu_info.bin");
  93 MODULE_FIRMWARE("amdgpu/arcturus_gpu_info.bin");
  94 MODULE_FIRMWARE("amdgpu/navi12_gpu_info.bin");
  95
  96 #define AMDGPU_RESUME_MS                2000
  97 #define AMDGPU_MAX_RETRY_LIMIT          2
  98 #define AMDGPU_RETRY_SRIOV_RESET(r) ((r) == -EBUSY || (r) == -ETIMEDOUT || (r) == -EINVAL)
  99 #define AMDGPU_PCIE_INDEX_FALLBACK (0x38 >> 2)
 100 #define AMDGPU_PCIE_INDEX_HI_FALLBACK (0x44 >> 2)
 101 #define AMDGPU_PCIE_DATA_FALLBACK (0x3C >> 2)
 102
 103 static const struct drm_driver amdgpu_kms_driver;
 104
 105 const char *amdgpu_asic_name[] = {
 106         "TAHITI",
 107         "PITCAIRN",
 108         "VERDE",
 109         "OLAND",
 110         "HAINAN",
 111         "BONAIRE",
 112         "KAVERI",
 113         "KABINI",
 114         "HAWAII",
 115         "MULLINS",
 116         "TOPAZ",
 117         "TONGA",
 118         "FIJI",
 119         "CARRIZO",
 120         "STONEY",
 121         "POLARIS10",
 122         "POLARIS11",
 123         "POLARIS12",
 124         "VEGAM",
 125         "VEGA10",
 126         "VEGA12",
 127         "VEGA20",
 128         "RAVEN",
 129         "ARCTURUS",
 130         "RENOIR",
 131         "ALDEBARAN",
 132         "NAVI10",
 133         "CYAN_SKILLFISH",
 134         "NAVI14",
 135         "NAVI12",
 136         "SIENNA_CICHLID",
 137         "NAVY_FLOUNDER",
 138         "VANGOGH",
 139         "DIMGREY_CAVEFISH",
 140         "BEIGE_GOBY",
 141         "YELLOW_CARP",
 142         "IP DISCOVERY",
 143         "LAST",
 144 };
 145
 146 /**
 147  * DOC: pcie_replay_count
 148  *
 149  * The amdgpu driver provides a sysfs API for reporting the total number
 150  * of PCIe replays (NAKs)
 151  * The file pcie_replay_count is used for this and returns the total
 152  * number of replays as a sum of the NAKs generated and NAKs received
 153  */
 154
 155 static ssize_t amdgpu_device_get_pcie_replay_count(struct device *dev,
 156                 struct device_attribute *attr, char *buf)
 157 {
 158         struct drm_device *ddev = dev_get_drvdata(dev);
 159         struct amdgpu_device *adev = drm_to_adev(ddev);
 160         uint64_t cnt = amdgpu_asic_get_pcie_replay_count(adev);
 161
 162         return sysfs_emit(buf, "%llu\n", cnt);
 163 }
 164
 165 static DEVICE_ATTR(pcie_replay_count, 0444,
 166                 amdgpu_device_get_pcie_replay_count, NULL);
 167
 168 static ssize_t amdgpu_sysfs_reg_state_get(struct file *f, struct kobject *kobj,
 169                                           struct bin_attribute *attr, char *buf,
 170                                           loff_t ppos, size_t count)
 171 {
 172         struct device *dev = kobj_to_dev(kobj);
 173         struct drm_device *ddev = dev_get_drvdata(dev);
 174         struct amdgpu_device *adev = drm_to_adev(ddev);
 175         ssize_t bytes_read;
 176
 177         switch (ppos) {
 178         case AMDGPU_SYS_REG_STATE_XGMI:
 179                 bytes_read = amdgpu_asic_get_reg_state(
 180                         adev, AMDGPU_REG_STATE_TYPE_XGMI, buf, count);
 181                 break;
 182         case AMDGPU_SYS_REG_STATE_WAFL:
 183                 bytes_read = amdgpu_asic_get_reg_state(
 184                         adev, AMDGPU_REG_STATE_TYPE_WAFL, buf, count);
 185                 break;
 186         case AMDGPU_SYS_REG_STATE_PCIE:
 187                 bytes_read = amdgpu_asic_get_reg_state(
 188                         adev, AMDGPU_REG_STATE_TYPE_PCIE, buf, count);
 189                 break;
 190         case AMDGPU_SYS_REG_STATE_USR:
 191                 bytes_read = amdgpu_asic_get_reg_state(
 192                         adev, AMDGPU_REG_STATE_TYPE_USR, buf, count);
 193                 break;
 194         case AMDGPU_SYS_REG_STATE_USR_1:
 195                 bytes_read = amdgpu_asic_get_reg_state(
 196                         adev, AMDGPU_REG_STATE_TYPE_USR_1, buf, count);
 197                 break;
 198         default:
 199                 return -EINVAL;
 200         }
 201
 202         return bytes_read;
 203 }
 204
 205 BIN_ATTR(reg_state, 0444, amdgpu_sysfs_reg_state_get, NULL,
 206          AMDGPU_SYS_REG_STATE_END);
 207
 208 int amdgpu_reg_state_sysfs_init(struct amdgpu_device *adev)
 209 {
 210         int ret;
 211
 212         if (!amdgpu_asic_get_reg_state_supported(adev))
 213                 return 0;
 214
 215         ret = sysfs_create_bin_file(&adev->dev->kobj, &bin_attr_reg_state);
 216
 217         return ret;
 218 }
 219
 220 void amdgpu_reg_state_sysfs_fini(struct amdgpu_device *adev)
 221 {
 222         if (!amdgpu_asic_get_reg_state_supported(adev))
 223                 return;
 224         sysfs_remove_bin_file(&adev->dev->kobj, &bin_attr_reg_state);
 225 }
 226
 227 /**
 228  * DOC: board_info
 229  *
 230  * The amdgpu driver provides a sysfs API for giving board related information.
 231  * It provides the form factor information in the format
 232  *
 233  *   type : form factor
 234  *
 235  * Possible form factor values
 236  *
 237  * - "cem"              - PCIE CEM card
 238  * - "oam"              - Open Compute Accelerator Module
 239  * - "unknown"  - Not known
 240  *
 241  */
 242
 243 static ssize_t amdgpu_device_get_board_info(struct device *dev,
 244                                             struct device_attribute *attr,
 245                                             char *buf)
 246 {
 247         struct drm_device *ddev = dev_get_drvdata(dev);
 248         struct amdgpu_device *adev = drm_to_adev(ddev);
 249         enum amdgpu_pkg_type pkg_type = AMDGPU_PKG_TYPE_CEM;
 250         const char *pkg;
 251
 252         if (adev->smuio.funcs && adev->smuio.funcs->get_pkg_type)
 253                 pkg_type = adev->smuio.funcs->get_pkg_type(adev);
 254
 255         switch (pkg_type) {
 256         case AMDGPU_PKG_TYPE_CEM:
 257                 pkg = "cem";
 258                 break;
 259         case AMDGPU_PKG_TYPE_OAM:
 260                 pkg = "oam";
 261                 break;
 262         default:
 263                 pkg = "unknown";
 264                 break;
 265         }
 266
 267         return sysfs_emit(buf, "%s : %s\n", "type", pkg);
 268 }
 269
 270 static DEVICE_ATTR(board_info, 0444, amdgpu_device_get_board_info, NULL);
 271
 272 static struct attribute *amdgpu_board_attrs[] = {
 273         &dev_attr_board_info.attr,
 274         NULL,
 275 };
 276
 277 static umode_t amdgpu_board_attrs_is_visible(struct kobject *kobj,
 278                                              struct attribute *attr, int n)
 279 {
 280         struct device *dev = kobj_to_dev(kobj);
 281         struct drm_device *ddev = dev_get_drvdata(dev);
 282         struct amdgpu_device *adev = drm_to_adev(ddev);
 283
 284         if (adev->flags & AMD_IS_APU)
 285                 return 0;
 286
 287         return attr->mode;
 288 }
 289
 290 static const struct attribute_group amdgpu_board_attrs_group = {
 291         .attrs = amdgpu_board_attrs,
 292         .is_visible = amdgpu_board_attrs_is_visible
 293 };
 294
 295 static void amdgpu_device_get_pcie_info(struct amdgpu_device *adev);
 296
 297
 298 /**
 299  * amdgpu_device_supports_px - Is the device a dGPU with ATPX power control
 300  *
 301  * @dev: drm_device pointer
 302  *
 303  * Returns true if the device is a dGPU with ATPX power control,
 304  * otherwise return false.
 305  */
 306 bool amdgpu_device_supports_px(struct drm_device *dev)
 307 {
 308         struct amdgpu_device *adev = drm_to_adev(dev);
 309
 310         if ((adev->flags & AMD_IS_PX) && !amdgpu_is_atpx_hybrid())
 311                 return true;
 312         return false;
 313 }
 314
 315 /**
 316  * amdgpu_device_supports_boco - Is the device a dGPU with ACPI power resources
 317  *
 318  * @dev: drm_device pointer
 319  *
 320  * Returns true if the device is a dGPU with ACPI power control,
 321  * otherwise return false.
 322  */
 323 bool amdgpu_device_supports_boco(struct drm_device *dev)
 324 {
 325         struct amdgpu_device *adev = drm_to_adev(dev);
 326
 327         if (adev->has_pr3 ||
 328             ((adev->flags & AMD_IS_PX) && amdgpu_is_atpx_hybrid()))
 329                 return true;
 330         return false;
 331 }
 332
 333 /**
 334  * amdgpu_device_supports_baco - Does the device support BACO
 335  *
 336  * @dev: drm_device pointer
 337  *
 338  * Returns true if the device supporte BACO,
 339  * otherwise return false.
 340  */
 341 bool amdgpu_device_supports_baco(struct drm_device *dev)
 342 {
 343         struct amdgpu_device *adev = drm_to_adev(dev);
 344
 345         return amdgpu_asic_supports_baco(adev);
 346 }
 347
 348 /**
 349  * amdgpu_device_supports_smart_shift - Is the device dGPU with
 350  * smart shift support
 351  *
 352  * @dev: drm_device pointer
 353  *
 354  * Returns true if the device is a dGPU with Smart Shift support,
 355  * otherwise returns false.
 356  */
 357 bool amdgpu_device_supports_smart_shift(struct drm_device *dev)
 358 {
 359         return (amdgpu_device_supports_boco(dev) &&
 360                 amdgpu_acpi_is_power_shift_control_supported());
 361 }
 362
 363 /*
 364  * VRAM access helper functions
 365  */
 366
 367 /**
 368  * amdgpu_device_mm_access - access vram by MM_INDEX/MM_DATA
 369  *
 370  * @adev: amdgpu_device pointer
 371  * @pos: offset of the buffer in vram
 372  * @buf: virtual address of the buffer in system memory
 373  * @size: read/write size, sizeof(@buf) must > @size
 374  * @write: true - write to vram, otherwise - read from vram
 375  */
 376 void amdgpu_device_mm_access(struct amdgpu_device *adev, loff_t pos,
 377                              void *buf, size_t size, bool write)
 378 {
 379         unsigned long flags;
 380         uint32_t hi = ~0, tmp = 0;
 381         uint32_t *data = buf;
 382         uint64_t last;
 383         int idx;
 384
 385         if (!drm_dev_enter(adev_to_drm(adev), &idx))
 386                 return;
 387
 388         BUG_ON(!IS_ALIGNED(pos, 4) || !IS_ALIGNED(size, 4));
 389
 390         spin_lock_irqsave(&adev->mmio_idx_lock, flags);
 391         for (last = pos + size; pos < last; pos += 4) {
 392                 tmp = pos >> 31;
 393
 394                 WREG32_NO_KIQ(mmMM_INDEX, ((uint32_t)pos) | 0x80000000);
 395                 if (tmp != hi) {
 396                         WREG32_NO_KIQ(mmMM_INDEX_HI, tmp);
 397                         hi = tmp;
 398                 }
 399                 if (write)
 400                         WREG32_NO_KIQ(mmMM_DATA, *data++);
 401                 else
 402                         *data++ = RREG32_NO_KIQ(mmMM_DATA);
 403         }
 404
 405         spin_unlock_irqrestore(&adev->mmio_idx_lock, flags);
 406         drm_dev_exit(idx);
 407 }
 408
 409 /**
 410  * amdgpu_device_aper_access - access vram by vram aperature
 411  *
 412  * @adev: amdgpu_device pointer
 413  * @pos: offset of the buffer in vram
 414  * @buf: virtual address of the buffer in system memory
 415  * @size: read/write size, sizeof(@buf) must > @size
 416  * @write: true - write to vram, otherwise - read from vram
 417  *
 418  * The return value means how many bytes have been transferred.
 419  */
 420 size_t amdgpu_device_aper_access(struct amdgpu_device *adev, loff_t pos,
 421                                  void *buf, size_t size, bool write)
 422 {
 423 #ifdef CONFIG_64BIT
 424         void __iomem *addr;
 425         size_t count = 0;
 426         uint64_t last;
 427
 428         if (!adev->mman.aper_base_kaddr)
 429                 return 0;
 430
 431         last = min(pos + size, adev->gmc.visible_vram_size);
 432         if (last > pos) {
 433                 addr = adev->mman.aper_base_kaddr + pos;
 434                 count = last - pos;
 435
 436                 if (write) {
 437                         memcpy_toio(addr, buf, count);
 438                         /* Make sure HDP write cache flush happens without any reordering
 439                          * after the system memory contents are sent over PCIe device
 440                          */
 441                         mb();
 442                         amdgpu_device_flush_hdp(adev, NULL);
 443                 } else {
 444                         amdgpu_device_invalidate_hdp(adev, NULL);
 445                         /* Make sure HDP read cache is invalidated before issuing a read
 446                          * to the PCIe device
 447                          */
 448                         mb();
 449                         memcpy_fromio(buf, addr, count);
 450                 }
 451
 452         }
 453
 454         return count;
 455 #else
 456         return 0;
 457 #endif
 458 }
 459
 460 /**
 461  * amdgpu_device_vram_access - read/write a buffer in vram
 462  *
 463  * @adev: amdgpu_device pointer
 464  * @pos: offset of the buffer in vram
 465  * @buf: virtual address of the buffer in system memory
 466  * @size: read/write size, sizeof(@buf) must > @size
 467  * @write: true - write to vram, otherwise - read from vram
 468  */
 469 void amdgpu_device_vram_access(struct amdgpu_device *adev, loff_t pos,
 470                                void *buf, size_t size, bool write)
 471 {
 472         size_t count;
 473
 474         /* try to using vram apreature to access vram first */
 475         count = amdgpu_device_aper_access(adev, pos, buf, size, write);
 476         size -= count;
 477         if (size) {
 478                 /* using MM to access rest vram */
 479                 pos += count;
 480                 buf += count;
 481                 amdgpu_device_mm_access(adev, pos, buf, size, write);
 482         }
 483 }
 484
 485 /*
 486  * register access helper functions.
 487  */
 488
 489 /* Check if hw access should be skipped because of hotplug or device error */
 490 bool amdgpu_device_skip_hw_access(struct amdgpu_device *adev)
 491 {
 492         if (adev->no_hw_access)
 493                 return true;
 494
 495 #ifdef CONFIG_LOCKDEP
 496         /*
 497          * This is a bit complicated to understand, so worth a comment. What we assert
 498          * here is that the GPU reset is not running on another thread in parallel.
 499          *
 500          * For this we trylock the read side of the reset semaphore, if that succeeds
 501          * we know that the reset is not running in paralell.
 502          *
 503          * If the trylock fails we assert that we are either already holding the read
 504          * side of the lock or are the reset thread itself and hold the write side of
 505          * the lock.
 506          */
 507         if (in_task()) {
 508                 if (down_read_trylock(&adev->reset_domain->sem))
 509                         up_read(&adev->reset_domain->sem);
 510                 else
 511                         lockdep_assert_held(&adev->reset_domain->sem);
 512         }
 513 #endif
 514         return false;
 515 }
 516
 517 /**
 518  * amdgpu_device_rreg - read a memory mapped IO or indirect register
 519  *
 520  * @adev: amdgpu_device pointer
 521  * @reg: dword aligned register offset
 522  * @acc_flags: access flags which require special behavior
 523  *
 524  * Returns the 32 bit value from the offset specified.
 525  */
 526 uint32_t amdgpu_device_rreg(struct amdgpu_device *adev,
 527                             uint32_t reg, uint32_t acc_flags)
 528 {
 529         uint32_t ret;
 530
 531         if (amdgpu_device_skip_hw_access(adev))
 532                 return 0;
 533
 534         if ((reg * 4) < adev->rmmio_size) {
 535                 if (!(acc_flags & AMDGPU_REGS_NO_KIQ) &&
 536                     amdgpu_sriov_runtime(adev) &&
 537                     down_read_trylock(&adev->reset_domain->sem)) {
 538                         ret = amdgpu_kiq_rreg(adev, reg, 0);
 539                         up_read(&adev->reset_domain->sem);
 540                 } else {
 541                         ret = readl(((void __iomem *)adev->rmmio) + (reg * 4));
 542                 }
 543         } else {
 544                 ret = adev->pcie_rreg(adev, reg * 4);
 545         }
 546
 547         trace_amdgpu_device_rreg(adev->pdev->device, reg, ret);
 548
 549         return ret;
 550 }
 551
 552 /*
 553  * MMIO register read with bytes helper functions
 554  * @offset:bytes offset from MMIO start
 555  */
 556
 557 /**
 558  * amdgpu_mm_rreg8 - read a memory mapped IO register
 559  *
 560  * @adev: amdgpu_device pointer
 561  * @offset: byte aligned register offset
 562  *
 563  * Returns the 8 bit value from the offset specified.
 564  */
 565 uint8_t amdgpu_mm_rreg8(struct amdgpu_device *adev, uint32_t offset)
 566 {
 567         if (amdgpu_device_skip_hw_access(adev))
 568                 return 0;
 569
 570         if (offset < adev->rmmio_size)
 571                 return (readb(adev->rmmio + offset));
 572         BUG();
 573 }
 574
 575
 576 /**
 577  * amdgpu_device_xcc_rreg - read a memory mapped IO or indirect register with specific XCC
 578  *
 579  * @adev: amdgpu_device pointer
 580  * @reg: dword aligned register offset
 581  * @acc_flags: access flags which require special behavior
 582  * @xcc_id: xcc accelerated compute core id
 583  *
 584  * Returns the 32 bit value from the offset specified.
 585  */
 586 uint32_t amdgpu_device_xcc_rreg(struct amdgpu_device *adev,
 587                                 uint32_t reg, uint32_t acc_flags,
 588                                 uint32_t xcc_id)
 589 {
 590         uint32_t ret, rlcg_flag;
 591
 592         if (amdgpu_device_skip_hw_access(adev))
 593                 return 0;
 594
 595         if ((reg * 4) < adev->rmmio_size) {
 596                 if (amdgpu_sriov_vf(adev) &&
 597                     !amdgpu_sriov_runtime(adev) &&
 598                     adev->gfx.rlc.rlcg_reg_access_supported &&
 599                     amdgpu_virt_get_rlcg_reg_access_flag(adev, acc_flags,
 600                                                          GC_HWIP, false,
 601                                                          &rlcg_flag)) {
 602                         ret = amdgpu_virt_rlcg_reg_rw(adev, reg, 0, rlcg_flag, xcc_id);
 603                 } else if (!(acc_flags & AMDGPU_REGS_NO_KIQ) &&
 604                     amdgpu_sriov_runtime(adev) &&
 605                     down_read_trylock(&adev->reset_domain->sem)) {
 606                         ret = amdgpu_kiq_rreg(adev, reg, xcc_id);
 607                         up_read(&adev->reset_domain->sem);
 608                 } else {
 609                         ret = readl(((void __iomem *)adev->rmmio) + (reg * 4));
 610                 }
 611         } else {
 612                 ret = adev->pcie_rreg(adev, reg * 4);
 613         }
 614
 615         return ret;
 616 }
 617
 618 /*
 619  * MMIO register write with bytes helper functions
 620  * @offset:bytes offset from MMIO start
 621  * @value: the value want to be written to the register
 622  */
 623
 624 /**
 625  * amdgpu_mm_wreg8 - read a memory mapped IO register
 626  *
 627  * @adev: amdgpu_device pointer
 628  * @offset: byte aligned register offset
 629  * @value: 8 bit value to write
 630  *
 631  * Writes the value specified to the offset specified.
 632  */
 633 void amdgpu_mm_wreg8(struct amdgpu_device *adev, uint32_t offset, uint8_t value)
 634 {
 635         if (amdgpu_device_skip_hw_access(adev))
 636                 return;
 637
 638         if (offset < adev->rmmio_size)
 639                 writeb(value, adev->rmmio + offset);
 640         else
 641                 BUG();
 642 }
 643
 644 /**
 645  * amdgpu_device_wreg - write to a memory mapped IO or indirect register
 646  *
 647  * @adev: amdgpu_device pointer
 648  * @reg: dword aligned register offset
 649  * @v: 32 bit value to write to the register
 650  * @acc_flags: access flags which require special behavior
 651  *
 652  * Writes the value specified to the offset specified.
 653  */
 654 void amdgpu_device_wreg(struct amdgpu_device *adev,
 655                         uint32_t reg, uint32_t v,
 656                         uint32_t acc_flags)
 657 {
 658         if (amdgpu_device_skip_hw_access(adev))
 659                 return;
 660
 661         if ((reg * 4) < adev->rmmio_size) {
 662                 if (!(acc_flags & AMDGPU_REGS_NO_KIQ) &&
 663                     amdgpu_sriov_runtime(adev) &&
 664                     down_read_trylock(&adev->reset_domain->sem)) {
 665                         amdgpu_kiq_wreg(adev, reg, v, 0);
 666                         up_read(&adev->reset_domain->sem);
 667                 } else {
 668                         writel(v, ((void __iomem *)adev->rmmio) + (reg * 4));
 669                 }
 670         } else {
 671                 adev->pcie_wreg(adev, reg * 4, v);
 672         }
 673
 674         trace_amdgpu_device_wreg(adev->pdev->device, reg, v);
 675 }
 676
 677 /**
 678  * amdgpu_mm_wreg_mmio_rlc -  write register either with direct/indirect mmio or with RLC path if in range
 679  *
 680  * @adev: amdgpu_device pointer
 681  * @reg: mmio/rlc register
 682  * @v: value to write
 683  * @xcc_id: xcc accelerated compute core id
 684  *
 685  * this function is invoked only for the debugfs register access
 686  */
 687 void amdgpu_mm_wreg_mmio_rlc(struct amdgpu_device *adev,
 688                              uint32_t reg, uint32_t v,
 689                              uint32_t xcc_id)
 690 {
 691         if (amdgpu_device_skip_hw_access(adev))
 692                 return;
 693
 694         if (amdgpu_sriov_fullaccess(adev) &&
 695             adev->gfx.rlc.funcs &&
 696             adev->gfx.rlc.funcs->is_rlcg_access_range) {
 697                 if (adev->gfx.rlc.funcs->is_rlcg_access_range(adev, reg))
 698                         return amdgpu_sriov_wreg(adev, reg, v, 0, 0, xcc_id);
 699         } else if ((reg * 4) >= adev->rmmio_size) {
 700                 adev->pcie_wreg(adev, reg * 4, v);
 701         } else {
 702                 writel(v, ((void __iomem *)adev->rmmio) + (reg * 4));
 703         }
 704 }
 705
 706 /**
 707  * amdgpu_device_xcc_wreg - write to a memory mapped IO or indirect register with specific XCC
 708  *
 709  * @adev: amdgpu_device pointer
 710  * @reg: dword aligned register offset
 711  * @v: 32 bit value to write to the register
 712  * @acc_flags: access flags which require special behavior
 713  * @xcc_id: xcc accelerated compute core id
 714  *
 715  * Writes the value specified to the offset specified.
 716  */
 717 void amdgpu_device_xcc_wreg(struct amdgpu_device *adev,
 718                         uint32_t reg, uint32_t v,
 719                         uint32_t acc_flags, uint32_t xcc_id)
 720 {
 721         uint32_t rlcg_flag;
 722
 723         if (amdgpu_device_skip_hw_access(adev))
 724                 return;
 725
 726         if ((reg * 4) < adev->rmmio_size) {
 727                 if (amdgpu_sriov_vf(adev) &&
 728                     !amdgpu_sriov_runtime(adev) &&
 729                     adev->gfx.rlc.rlcg_reg_access_supported &&
 730                     amdgpu_virt_get_rlcg_reg_access_flag(adev, acc_flags,
 731                                                          GC_HWIP, true,
 732                                                          &rlcg_flag)) {
 733                         amdgpu_virt_rlcg_reg_rw(adev, reg, v, rlcg_flag, xcc_id);
 734                 } else if (!(acc_flags & AMDGPU_REGS_NO_KIQ) &&
 735                     amdgpu_sriov_runtime(adev) &&
 736                     down_read_trylock(&adev->reset_domain->sem)) {
 737                         amdgpu_kiq_wreg(adev, reg, v, xcc_id);
 738                         up_read(&adev->reset_domain->sem);
 739                 } else {
 740                         writel(v, ((void __iomem *)adev->rmmio) + (reg * 4));
 741                 }
 742         } else {
 743                 adev->pcie_wreg(adev, reg * 4, v);
 744         }
 745 }
 746
 747 /**
 748  * amdgpu_device_indirect_rreg - read an indirect register
 749  *
 750  * @adev: amdgpu_device pointer
 751  * @reg_addr: indirect register address to read from
 752  *
 753  * Returns the value of indirect register @reg_addr
 754  */
 755 u32 amdgpu_device_indirect_rreg(struct amdgpu_device *adev,
 756                                 u32 reg_addr)
 757 {
 758         unsigned long flags, pcie_index, pcie_data;
 759         void __iomem *pcie_index_offset;
 760         void __iomem *pcie_data_offset;
 761         u32 r;
 762
 763         pcie_index = adev->nbio.funcs->get_pcie_index_offset(adev);
 764         pcie_data = adev->nbio.funcs->get_pcie_data_offset(adev);
 765
 766         spin_lock_irqsave(&adev->pcie_idx_lock, flags);
 767         pcie_index_offset = (void __iomem *)adev->rmmio + pcie_index * 4;
 768         pcie_data_offset = (void __iomem *)adev->rmmio + pcie_data * 4;
 769
 770         writel(reg_addr, pcie_index_offset);
 771         readl(pcie_index_offset);
 772         r = readl(pcie_data_offset);
 773         spin_unlock_irqrestore(&adev->pcie_idx_lock, flags);
 774
 775         return r;
 776 }
 777
 778 u32 amdgpu_device_indirect_rreg_ext(struct amdgpu_device *adev,
 779                                     u64 reg_addr)
 780 {
 781         unsigned long flags, pcie_index, pcie_index_hi, pcie_data;
 782         u32 r;
 783         void __iomem *pcie_index_offset;
 784         void __iomem *pcie_index_hi_offset;
 785         void __iomem *pcie_data_offset;
 786
 787         if (unlikely(!adev->nbio.funcs)) {
 788                 pcie_index = AMDGPU_PCIE_INDEX_FALLBACK;
 789                 pcie_data = AMDGPU_PCIE_DATA_FALLBACK;
 790         } else {
 791                 pcie_index = adev->nbio.funcs->get_pcie_index_offset(adev);
 792                 pcie_data = adev->nbio.funcs->get_pcie_data_offset(adev);
 793         }
 794
 795         if (reg_addr >> 32) {
 796                 if (unlikely(!adev->nbio.funcs))
 797                         pcie_index_hi = AMDGPU_PCIE_INDEX_HI_FALLBACK;
 798                 else
 799                         pcie_index_hi = adev->nbio.funcs->get_pcie_index_hi_offset(adev);
 800         } else {
 801                 pcie_index_hi = 0;
 802         }
 803
 804         spin_lock_irqsave(&adev->pcie_idx_lock, flags);
 805         pcie_index_offset = (void __iomem *)adev->rmmio + pcie_index * 4;
 806         pcie_data_offset = (void __iomem *)adev->rmmio + pcie_data * 4;
 807         if (pcie_index_hi != 0)
 808                 pcie_index_hi_offset = (void __iomem *)adev->rmmio +
 809                                 pcie_index_hi * 4;
 810
 811         writel(reg_addr, pcie_index_offset);
 812         readl(pcie_index_offset);
 813         if (pcie_index_hi != 0) {
 814                 writel((reg_addr >> 32) & 0xff, pcie_index_hi_offset);
 815                 readl(pcie_index_hi_offset);
 816         }
 817         r = readl(pcie_data_offset);
 818
 819         /* clear the high bits */
 820         if (pcie_index_hi != 0) {
 821                 writel(0, pcie_index_hi_offset);
 822                 readl(pcie_index_hi_offset);
 823         }
 824
 825         spin_unlock_irqrestore(&adev->pcie_idx_lock, flags);
 826
 827         return r;
 828 }
 829
 830 /**
 831  * amdgpu_device_indirect_rreg64 - read a 64bits indirect register
 832  *
 833  * @adev: amdgpu_device pointer
 834  * @reg_addr: indirect register address to read from
 835  *
 836  * Returns the value of indirect register @reg_addr
 837  */
 838 u64 amdgpu_device_indirect_rreg64(struct amdgpu_device *adev,
 839                                   u32 reg_addr)
 840 {
 841         unsigned long flags, pcie_index, pcie_data;
 842         void __iomem *pcie_index_offset;
 843         void __iomem *pcie_data_offset;
 844         u64 r;
 845
 846         pcie_index = adev->nbio.funcs->get_pcie_index_offset(adev);
 847         pcie_data = adev->nbio.funcs->get_pcie_data_offset(adev);
 848
 849         spin_lock_irqsave(&adev->pcie_idx_lock, flags);
 850         pcie_index_offset = (void __iomem *)adev->rmmio + pcie_index * 4;
 851         pcie_data_offset = (void __iomem *)adev->rmmio + pcie_data * 4;
 852
 853         /* read low 32 bits */
 854         writel(reg_addr, pcie_index_offset);
 855         readl(pcie_index_offset);
 856         r = readl(pcie_data_offset);
 857         /* read high 32 bits */
 858         writel(reg_addr + 4, pcie_index_offset);
 859         readl(pcie_index_offset);
 860         r |= ((u64)readl(pcie_data_offset) << 32);
 861         spin_unlock_irqrestore(&adev->pcie_idx_lock, flags);
 862
 863         return r;
 864 }
 865
 866 u64 amdgpu_device_indirect_rreg64_ext(struct amdgpu_device *adev,
 867                                   u64 reg_addr)
 868 {
 869         unsigned long flags, pcie_index, pcie_data;
 870         unsigned long pcie_index_hi = 0;
 871         void __iomem *pcie_index_offset;
 872         void __iomem *pcie_index_hi_offset;
 873         void __iomem *pcie_data_offset;
 874         u64 r;
 875
 876         pcie_index = adev->nbio.funcs->get_pcie_index_offset(adev);
 877         pcie_data = adev->nbio.funcs->get_pcie_data_offset(adev);
 878         if ((reg_addr >> 32) && (adev->nbio.funcs->get_pcie_index_hi_offset))
 879                 pcie_index_hi = adev->nbio.funcs->get_pcie_index_hi_offset(adev);
 880
 881         spin_lock_irqsave(&adev->pcie_idx_lock, flags);
 882         pcie_index_offset = (void __iomem *)adev->rmmio + pcie_index * 4;
 883         pcie_data_offset = (void __iomem *)adev->rmmio + pcie_data * 4;
 884         if (pcie_index_hi != 0)
 885                 pcie_index_hi_offset = (void __iomem *)adev->rmmio +
 886                         pcie_index_hi * 4;
 887
 888         /* read low 32 bits */
 889         writel(reg_addr, pcie_index_offset);
 890         readl(pcie_index_offset);
 891         if (pcie_index_hi != 0) {
 892                 writel((reg_addr >> 32) & 0xff, pcie_index_hi_offset);
 893                 readl(pcie_index_hi_offset);
 894         }
 895         r = readl(pcie_data_offset);
 896         /* read high 32 bits */
 897         writel(reg_addr + 4, pcie_index_offset);
 898         readl(pcie_index_offset);
 899         if (pcie_index_hi != 0) {
 900                 writel((reg_addr >> 32) & 0xff, pcie_index_hi_offset);
 901                 readl(pcie_index_hi_offset);
 902         }
 903         r |= ((u64)readl(pcie_data_offset) << 32);
 904
 905         /* clear the high bits */
 906         if (pcie_index_hi != 0) {
 907                 writel(0, pcie_index_hi_offset);
 908                 readl(pcie_index_hi_offset);
 909         }
 910
 911         spin_unlock_irqrestore(&adev->pcie_idx_lock, flags);
 912
 913         return r;
 914 }
 915
 916 /**
 917  * amdgpu_device_indirect_wreg - write an indirect register address
 918  *
 919  * @adev: amdgpu_device pointer
 920  * @reg_addr: indirect register offset
 921  * @reg_data: indirect register data
 922  *
 923  */
 924 void amdgpu_device_indirect_wreg(struct amdgpu_device *adev,
 925                                  u32 reg_addr, u32 reg_data)
 926 {
 927         unsigned long flags, pcie_index, pcie_data;
 928         void __iomem *pcie_index_offset;
 929         void __iomem *pcie_data_offset;
 930
 931         pcie_index = adev->nbio.funcs->get_pcie_index_offset(adev);
 932         pcie_data = adev->nbio.funcs->get_pcie_data_offset(adev);
 933
 934         spin_lock_irqsave(&adev->pcie_idx_lock, flags);
 935         pcie_index_offset = (void __iomem *)adev->rmmio + pcie_index * 4;
 936         pcie_data_offset = (void __iomem *)adev->rmmio + pcie_data * 4;
 937
 938         writel(reg_addr, pcie_index_offset);
 939         readl(pcie_index_offset);
 940         writel(reg_data, pcie_data_offset);
 941         readl(pcie_data_offset);
 942         spin_unlock_irqrestore(&adev->pcie_idx_lock, flags);
 943 }
 944
 945 void amdgpu_device_indirect_wreg_ext(struct amdgpu_device *adev,
 946                                      u64 reg_addr, u32 reg_data)
 947 {
 948         unsigned long flags, pcie_index, pcie_index_hi, pcie_data;
 949         void __iomem *pcie_index_offset;
 950         void __iomem *pcie_index_hi_offset;
 951         void __iomem *pcie_data_offset;
 952
 953         pcie_index = adev->nbio.funcs->get_pcie_index_offset(adev);
 954         pcie_data = adev->nbio.funcs->get_pcie_data_offset(adev);
 955         if ((reg_addr >> 32) && (adev->nbio.funcs->get_pcie_index_hi_offset))
 956                 pcie_index_hi = adev->nbio.funcs->get_pcie_index_hi_offset(adev);
 957         else
 958                 pcie_index_hi = 0;
 959
 960         spin_lock_irqsave(&adev->pcie_idx_lock, flags);
 961         pcie_index_offset = (void __iomem *)adev->rmmio + pcie_index * 4;
 962         pcie_data_offset = (void __iomem *)adev->rmmio + pcie_data * 4;
 963         if (pcie_index_hi != 0)
 964                 pcie_index_hi_offset = (void __iomem *)adev->rmmio +
 965                                 pcie_index_hi * 4;
 966
 967         writel(reg_addr, pcie_index_offset);
 968         readl(pcie_index_offset);
 969         if (pcie_index_hi != 0) {
 970                 writel((reg_addr >> 32) & 0xff, pcie_index_hi_offset);
 971                 readl(pcie_index_hi_offset);
 972         }
 973         writel(reg_data, pcie_data_offset);
 974         readl(pcie_data_offset);
 975
 976         /* clear the high bits */
 977         if (pcie_index_hi != 0) {
 978                 writel(0, pcie_index_hi_offset);
 979                 readl(pcie_index_hi_offset);
 980         }
 981
 982         spin_unlock_irqrestore(&adev->pcie_idx_lock, flags);
 983 }
 984
 985 /**
 986  * amdgpu_device_indirect_wreg64 - write a 64bits indirect register address
 987  *
 988  * @adev: amdgpu_device pointer
 989  * @reg_addr: indirect register offset
 990  * @reg_data: indirect register data
 991  *
 992  */
 993 void amdgpu_device_indirect_wreg64(struct amdgpu_device *adev,
 994                                    u32 reg_addr, u64 reg_data)
 995 {
 996         unsigned long flags, pcie_index, pcie_data;
 997         void __iomem *pcie_index_offset;
 998         void __iomem *pcie_data_offset;
 999
1000         pcie_index = adev->nbio.funcs->get_pcie_index_offset(adev);
1001         pcie_data = adev->nbio.funcs->get_pcie_data_offset(adev);
1002
1003         spin_lock_irqsave(&adev->pcie_idx_lock, flags);
1004         pcie_index_offset = (void __iomem *)adev->rmmio + pcie_index * 4;
1005         pcie_data_offset = (void __iomem *)adev->rmmio + pcie_data * 4;
1006
1007         /* write low 32 bits */
1008         writel(reg_addr, pcie_index_offset);
1009         readl(pcie_index_offset);
1010         writel((u32)(reg_data & 0xffffffffULL), pcie_data_offset);
1011         readl(pcie_data_offset);
1012         /* write high 32 bits */
1013         writel(reg_addr + 4, pcie_index_offset);
1014         readl(pcie_index_offset);
1015         writel((u32)(reg_data >> 32), pcie_data_offset);
1016         readl(pcie_data_offset);
1017         spin_unlock_irqrestore(&adev->pcie_idx_lock, flags);
1018 }
1019
1020 void amdgpu_device_indirect_wreg64_ext(struct amdgpu_device *adev,
1021                                    u64 reg_addr, u64 reg_data)
1022 {
1023         unsigned long flags, pcie_index, pcie_data;
1024         unsigned long pcie_index_hi = 0;
1025         void __iomem *pcie_index_offset;
1026         void __iomem *pcie_index_hi_offset;
1027         void __iomem *pcie_data_offset;
1028
1029         pcie_index = adev->nbio.funcs->get_pcie_index_offset(adev);
1030         pcie_data = adev->nbio.funcs->get_pcie_data_offset(adev);
1031         if ((reg_addr >> 32) && (adev->nbio.funcs->get_pcie_index_hi_offset))
1032                 pcie_index_hi = adev->nbio.funcs->get_pcie_index_hi_offset(adev);
1033
1034         spin_lock_irqsave(&adev->pcie_idx_lock, flags);
1035         pcie_index_offset = (void __iomem *)adev->rmmio + pcie_index * 4;
1036         pcie_data_offset = (void __iomem *)adev->rmmio + pcie_data * 4;
1037         if (pcie_index_hi != 0)
1038                 pcie_index_hi_offset = (void __iomem *)adev->rmmio +
1039                                 pcie_index_hi * 4;
1040
1041         /* write low 32 bits */
1042         writel(reg_addr, pcie_index_offset);
1043         readl(pcie_index_offset);
1044         if (pcie_index_hi != 0) {
1045                 writel((reg_addr >> 32) & 0xff, pcie_index_hi_offset);
1046                 readl(pcie_index_hi_offset);
1047         }
1048         writel((u32)(reg_data & 0xffffffffULL), pcie_data_offset);
1049         readl(pcie_data_offset);
1050         /* write high 32 bits */
1051         writel(reg_addr + 4, pcie_index_offset);
1052         readl(pcie_index_offset);
1053         if (pcie_index_hi != 0) {
1054                 writel((reg_addr >> 32) & 0xff, pcie_index_hi_offset);
1055                 readl(pcie_index_hi_offset);
1056         }
1057         writel((u32)(reg_data >> 32), pcie_data_offset);
1058         readl(pcie_data_offset);
1059
1060         /* clear the high bits */
1061         if (pcie_index_hi != 0) {
1062                 writel(0, pcie_index_hi_offset);
1063                 readl(pcie_index_hi_offset);
1064         }
1065
1066         spin_unlock_irqrestore(&adev->pcie_idx_lock, flags);
1067 }
1068
1069 /**
1070  * amdgpu_device_get_rev_id - query device rev_id
1071  *
1072  * @adev: amdgpu_device pointer
1073  *
1074  * Return device rev_id
1075  */
1076 u32 amdgpu_device_get_rev_id(struct amdgpu_device *adev)
1077 {
1078         return adev->nbio.funcs->get_rev_id(adev);
1079 }
1080
1081 /**
1082  * amdgpu_invalid_rreg - dummy reg read function
1083  *
1084  * @adev: amdgpu_device pointer
1085  * @reg: offset of register
1086  *
1087  * Dummy register read function.  Used for register blocks
1088  * that certain asics don't have (all asics).
1089  * Returns the value in the register.
1090  */
1091 static uint32_t amdgpu_invalid_rreg(struct amdgpu_device *adev, uint32_t reg)
1092 {
1093         DRM_ERROR("Invalid callback to read register 0x%04X\n", reg);
1094         BUG();
1095         return 0;
1096 }
1097
1098 static uint32_t amdgpu_invalid_rreg_ext(struct amdgpu_device *adev, uint64_t reg)
1099 {
1100         DRM_ERROR("Invalid callback to read register 0x%llX\n", reg);
1101         BUG();
1102         return 0;
1103 }
1104
1105 /**
1106  * amdgpu_invalid_wreg - dummy reg write function
1107  *
1108  * @adev: amdgpu_device pointer
1109  * @reg: offset of register
1110  * @v: value to write to the register
1111  *
1112  * Dummy register read function.  Used for register blocks
1113  * that certain asics don't have (all asics).
1114  */
1115 static void amdgpu_invalid_wreg(struct amdgpu_device *adev, uint32_t reg, uint32_t v)
1116 {
1117         DRM_ERROR("Invalid callback to write register 0x%04X with 0x%08X\n",
1118                   reg, v);
1119         BUG();
1120 }
1121
1122 static void amdgpu_invalid_wreg_ext(struct amdgpu_device *adev, uint64_t reg, uint32_t v)
1123 {
1124         DRM_ERROR("Invalid callback to write register 0x%llX with 0x%08X\n",
1125                   reg, v);
1126         BUG();
1127 }
1128
1129 /**
1130  * amdgpu_invalid_rreg64 - dummy 64 bit reg read function
1131  *
1132  * @adev: amdgpu_device pointer
1133  * @reg: offset of register
1134  *
1135  * Dummy register read function.  Used for register blocks
1136  * that certain asics don't have (all asics).
1137  * Returns the value in the register.
1138  */
1139 static uint64_t amdgpu_invalid_rreg64(struct amdgpu_device *adev, uint32_t reg)
1140 {
1141         DRM_ERROR("Invalid callback to read 64 bit register 0x%04X\n", reg);
1142         BUG();
1143         return 0;
1144 }
1145
1146 static uint64_t amdgpu_invalid_rreg64_ext(struct amdgpu_device *adev, uint64_t reg)
1147 {
1148         DRM_ERROR("Invalid callback to read register 0x%llX\n", reg);
1149         BUG();
1150         return 0;
1151 }
1152
1153 /**
1154  * amdgpu_invalid_wreg64 - dummy reg write function
1155  *
1156  * @adev: amdgpu_device pointer
1157  * @reg: offset of register
1158  * @v: value to write to the register
1159  *
1160  * Dummy register read function.  Used for register blocks
1161  * that certain asics don't have (all asics).
1162  */
1163 static void amdgpu_invalid_wreg64(struct amdgpu_device *adev, uint32_t reg, uint64_t v)
1164 {
1165         DRM_ERROR("Invalid callback to write 64 bit register 0x%04X with 0x%08llX\n",
1166                   reg, v);
1167         BUG();
1168 }
1169
1170 static void amdgpu_invalid_wreg64_ext(struct amdgpu_device *adev, uint64_t reg, uint64_t v)
1171 {
1172         DRM_ERROR("Invalid callback to write 64 bit register 0x%llX with 0x%08llX\n",
1173                   reg, v);
1174         BUG();
1175 }
1176
1177 /**
1178  * amdgpu_block_invalid_rreg - dummy reg read function
1179  *
1180  * @adev: amdgpu_device pointer
1181  * @block: offset of instance
1182  * @reg: offset of register
1183  *
1184  * Dummy register read function.  Used for register blocks
1185  * that certain asics don't have (all asics).
1186  * Returns the value in the register.
1187  */
1188 static uint32_t amdgpu_block_invalid_rreg(struct amdgpu_device *adev,
1189                                           uint32_t block, uint32_t reg)
1190 {
1191         DRM_ERROR("Invalid callback to read register 0x%04X in block 0x%04X\n",
1192                   reg, block);
1193         BUG();
1194         return 0;
1195 }
1196
1197 /**
1198  * amdgpu_block_invalid_wreg - dummy reg write function
1199  *
1200  * @adev: amdgpu_device pointer
1201  * @block: offset of instance
1202  * @reg: offset of register
1203  * @v: value to write to the register
1204  *
1205  * Dummy register read function.  Used for register blocks
1206  * that certain asics don't have (all asics).
1207  */
1208 static void amdgpu_block_invalid_wreg(struct amdgpu_device *adev,
1209                                       uint32_t block,
1210                                       uint32_t reg, uint32_t v)
1211 {
1212         DRM_ERROR("Invalid block callback to write register 0x%04X in block 0x%04X with 0x%08X\n",
1213                   reg, block, v);
1214         BUG();
1215 }
1216
1217 /**
1218  * amdgpu_device_asic_init - Wrapper for atom asic_init
1219  *
1220  * @adev: amdgpu_device pointer
1221  *
1222  * Does any asic specific work and then calls atom asic init.
1223  */
1224 static int amdgpu_device_asic_init(struct amdgpu_device *adev)
1225 {
1226         int ret;
1227
1228         amdgpu_asic_pre_asic_init(adev);
1229
1230         if (amdgpu_ip_version(adev, GC_HWIP, 0) == IP_VERSION(9, 4, 3) ||
1231             amdgpu_ip_version(adev, GC_HWIP, 0) >= IP_VERSION(11, 0, 0)) {
1232                 amdgpu_psp_wait_for_bootloader(adev);
1233                 ret = amdgpu_atomfirmware_asic_init(adev, true);
1234                 return ret;
1235         } else {
1236                 return amdgpu_atom_asic_init(adev->mode_info.atom_context);
1237         }
1238
1239         return 0;
1240 }
1241
1242 /**
1243  * amdgpu_device_mem_scratch_init - allocate the VRAM scratch page
1244  *
1245  * @adev: amdgpu_device pointer
1246  *
1247  * Allocates a scratch page of VRAM for use by various things in the
1248  * driver.
1249  */
1250 static int amdgpu_device_mem_scratch_init(struct amdgpu_device *adev)
1251 {
1252         return amdgpu_bo_create_kernel(adev, AMDGPU_GPU_PAGE_SIZE, PAGE_SIZE,
1253                                        AMDGPU_GEM_DOMAIN_VRAM |
1254                                        AMDGPU_GEM_DOMAIN_GTT,
1255                                        &adev->mem_scratch.robj,
1256                                        &adev->mem_scratch.gpu_addr,
1257                                        (void **)&adev->mem_scratch.ptr);
1258 }
1259
1260 /**
1261  * amdgpu_device_mem_scratch_fini - Free the VRAM scratch page
1262  *
1263  * @adev: amdgpu_device pointer
1264  *
1265  * Frees the VRAM scratch page.
1266  */
1267 static void amdgpu_device_mem_scratch_fini(struct amdgpu_device *adev)
1268 {
1269         amdgpu_bo_free_kernel(&adev->mem_scratch.robj, NULL, NULL);
1270 }
1271
1272 /**
1273  * amdgpu_device_program_register_sequence - program an array of registers.
1274  *
1275  * @adev: amdgpu_device pointer
1276  * @registers: pointer to the register array
1277  * @array_size: size of the register array
1278  *
1279  * Programs an array or registers with and or masks.
1280  * This is a helper for setting golden registers.
1281  */
1282 void amdgpu_device_program_register_sequence(struct amdgpu_device *adev,
1283                                              const u32 *registers,
1284                                              const u32 array_size)
1285 {
1286         u32 tmp, reg, and_mask, or_mask;
1287         int i;
1288
1289         if (array_size % 3)
1290                 return;
1291
1292         for (i = 0; i < array_size; i += 3) {
1293                 reg = registers[i + 0];
1294                 and_mask = registers[i + 1];
1295                 or_mask = registers[i + 2];
1296
1297                 if (and_mask == 0xffffffff) {
1298                         tmp = or_mask;
1299                 } else {
1300                         tmp = RREG32(reg);
1301                         tmp &= ~and_mask;
1302                         if (adev->family >= AMDGPU_FAMILY_AI)
1303                                 tmp |= (or_mask & and_mask);
1304                         else
1305                                 tmp |= or_mask;
1306                 }
1307                 WREG32(reg, tmp);
1308         }
1309 }
1310
1311 /**
1312  * amdgpu_device_pci_config_reset - reset the GPU
1313  *
1314  * @adev: amdgpu_device pointer
1315  *
1316  * Resets the GPU using the pci config reset sequence.
1317  * Only applicable to asics prior to vega10.
1318  */
1319 void amdgpu_device_pci_config_reset(struct amdgpu_device *adev)
1320 {
1321         pci_write_config_dword(adev->pdev, 0x7c, AMDGPU_ASIC_RESET_DATA);
1322 }
1323
1324 /**
1325  * amdgpu_device_pci_reset - reset the GPU using generic PCI means
1326  *
1327  * @adev: amdgpu_device pointer
1328  *
1329  * Resets the GPU using generic pci reset interfaces (FLR, SBR, etc.).
1330  */
1331 int amdgpu_device_pci_reset(struct amdgpu_device *adev)
1332 {
1333         return pci_reset_function(adev->pdev);
1334 }
1335
1336 /*
1337  * amdgpu_device_wb_*()
1338  * Writeback is the method by which the GPU updates special pages in memory
1339  * with the status of certain GPU events (fences, ring pointers,etc.).
1340  */
1341
1342 /**
1343  * amdgpu_device_wb_fini - Disable Writeback and free memory
1344  *
1345  * @adev: amdgpu_device pointer
1346  *
1347  * Disables Writeback and frees the Writeback memory (all asics).
1348  * Used at driver shutdown.
1349  */
1350 static void amdgpu_device_wb_fini(struct amdgpu_device *adev)
1351 {
1352         if (adev->wb.wb_obj) {
1353                 amdgpu_bo_free_kernel(&adev->wb.wb_obj,
1354                                       &adev->wb.gpu_addr,
1355                                       (void **)&adev->wb.wb);
1356                 adev->wb.wb_obj = NULL;
1357         }
1358 }
1359
1360 /**
1361  * amdgpu_device_wb_init - Init Writeback driver info and allocate memory
1362  *
1363  * @adev: amdgpu_device pointer
1364  *
1365  * Initializes writeback and allocates writeback memory (all asics).
1366  * Used at driver startup.
1367  * Returns 0 on success or an -error on failure.
1368  */
1369 static int amdgpu_device_wb_init(struct amdgpu_device *adev)
1370 {
1371         int r;
1372
1373         if (adev->wb.wb_obj == NULL) {
1374                 /* AMDGPU_MAX_WB * sizeof(uint32_t) * 8 = AMDGPU_MAX_WB 256bit slots */
1375                 r = amdgpu_bo_create_kernel(adev, AMDGPU_MAX_WB * sizeof(uint32_t) * 8,
1376                                             PAGE_SIZE, AMDGPU_GEM_DOMAIN_GTT,
1377                                             &adev->wb.wb_obj, &adev->wb.gpu_addr,
1378                                             (void **)&adev->wb.wb);
1379                 if (r) {
1380                         dev_warn(adev->dev, "(%d) create WB bo failed\n", r);
1381                         return r;
1382                 }
1383
1384                 adev->wb.num_wb = AMDGPU_MAX_WB;
1385                 memset(&adev->wb.used, 0, sizeof(adev->wb.used));
1386
1387                 /* clear wb memory */
1388                 memset((char *)adev->wb.wb, 0, AMDGPU_MAX_WB * sizeof(uint32_t) * 8);
1389         }
1390
1391         return 0;
1392 }
1393
1394 /**
1395  * amdgpu_device_wb_get - Allocate a wb entry
1396  *
1397  * @adev: amdgpu_device pointer
1398  * @wb: wb index
1399  *
1400  * Allocate a wb slot for use by the driver (all asics).
1401  * Returns 0 on success or -EINVAL on failure.
1402  */
1403 int amdgpu_device_wb_get(struct amdgpu_device *adev, u32 *wb)
1404 {
1405         unsigned long offset = find_first_zero_bit(adev->wb.used, adev->wb.num_wb);
1406
1407         if (offset < adev->wb.num_wb) {
1408                 __set_bit(offset, adev->wb.used);
1409                 *wb = offset << 3; /* convert to dw offset */
1410                 return 0;
1411         } else {
1412                 return -EINVAL;
1413         }
1414 }
1415
1416 /**
1417  * amdgpu_device_wb_free - Free a wb entry
1418  *
1419  * @adev: amdgpu_device pointer
1420  * @wb: wb index
1421  *
1422  * Free a wb slot allocated for use by the driver (all asics)
1423  */
1424 void amdgpu_device_wb_free(struct amdgpu_device *adev, u32 wb)
1425 {
1426         wb >>= 3;
1427         if (wb < adev->wb.num_wb)
1428                 __clear_bit(wb, adev->wb.used);
1429 }
1430
1431 /**
1432  * amdgpu_device_resize_fb_bar - try to resize FB BAR
1433  *
1434  * @adev: amdgpu_device pointer
1435  *
1436  * Try to resize FB BAR to make all VRAM CPU accessible. We try very hard not
1437  * to fail, but if any of the BARs is not accessible after the size we abort
1438  * driver loading by returning -ENODEV.
1439  */
1440 int amdgpu_device_resize_fb_bar(struct amdgpu_device *adev)
1441 {
1442         int rbar_size = pci_rebar_bytes_to_size(adev->gmc.real_vram_size);
1443         struct pci_bus *root;
1444         struct resource *res;
1445         unsigned int i;
1446         u16 cmd;
1447         int r;
1448
1449         if (!IS_ENABLED(CONFIG_PHYS_ADDR_T_64BIT))
1450                 return 0;
1451
1452         /* Bypass for VF */
1453         if (amdgpu_sriov_vf(adev))
1454                 return 0;
1455
1456         /* PCI_EXT_CAP_ID_VNDR extended capability is located at 0x100 */
1457         if (!pci_find_ext_capability(adev->pdev, PCI_EXT_CAP_ID_VNDR))
1458                 DRM_WARN("System can't access extended configuration space,please check!!\n");
1459
1460         /* skip if the bios has already enabled large BAR */
1461         if (adev->gmc.real_vram_size &&
1462             (pci_resource_len(adev->pdev, 0) >= adev->gmc.real_vram_size))
1463                 return 0;
1464
1465         /* Check if the root BUS has 64bit memory resources */
1466         root = adev->pdev->bus;
1467         while (root->parent)
1468                 root = root->parent;
1469
1470         pci_bus_for_each_resource(root, res, i) {
1471                 if (res && res->flags & (IORESOURCE_MEM | IORESOURCE_MEM_64) &&
1472                     res->start > 0x100000000ull)
1473                         break;
1474         }
1475
1476         /* Trying to resize is pointless without a root hub window above 4GB */
1477         if (!res)
1478                 return 0;
1479
1480         /* Limit the BAR size to what is available */
1481         rbar_size = min(fls(pci_rebar_get_possible_sizes(adev->pdev, 0)) - 1,
1482                         rbar_size);
1483
1484         /* Disable memory decoding while we change the BAR addresses and size */
1485         pci_read_config_word(adev->pdev, PCI_COMMAND, &cmd);
1486         pci_write_config_word(adev->pdev, PCI_COMMAND,
1487                               cmd & ~PCI_COMMAND_MEMORY);
1488
1489         /* Free the VRAM and doorbell BAR, we most likely need to move both. */
1490         amdgpu_doorbell_fini(adev);
1491         if (adev->asic_type >= CHIP_BONAIRE)
1492                 pci_release_resource(adev->pdev, 2);
1493
1494         pci_release_resource(adev->pdev, 0);
1495
1496         r = pci_resize_resource(adev->pdev, 0, rbar_size);
1497         if (r == -ENOSPC)
1498                 DRM_INFO("Not enough PCI address space for a large BAR.");
1499         else if (r && r != -ENOTSUPP)
1500                 DRM_ERROR("Problem resizing BAR0 (%d).", r);
1501
1502         pci_assign_unassigned_bus_resources(adev->pdev->bus);
1503
1504         /* When the doorbell or fb BAR isn't available we have no chance of
1505          * using the device.
1506          */
1507         r = amdgpu_doorbell_init(adev);
1508         if (r || (pci_resource_flags(adev->pdev, 0) & IORESOURCE_UNSET))
1509                 return -ENODEV;
1510
1511         pci_write_config_word(adev->pdev, PCI_COMMAND, cmd);
1512
1513         return 0;
1514 }
1515
1516 static bool amdgpu_device_read_bios(struct amdgpu_device *adev)
1517 {
1518         if (hweight32(adev->aid_mask) && (adev->flags & AMD_IS_APU))
1519                 return false;
1520
1521         return true;
1522 }
1523
1524 /*
1525  * GPU helpers function.
1526  */
1527 /**
1528  * amdgpu_device_need_post - check if the hw need post or not
1529  *
1530  * @adev: amdgpu_device pointer
1531  *
1532  * Check if the asic has been initialized (all asics) at driver startup
1533  * or post is needed if  hw reset is performed.
1534  * Returns true if need or false if not.
1535  */
1536 bool amdgpu_device_need_post(struct amdgpu_device *adev)
1537 {
1538         uint32_t reg;
1539
1540         if (amdgpu_sriov_vf(adev))
1541                 return false;
1542
1543         if (!amdgpu_device_read_bios(adev))
1544                 return false;
1545
1546         if (amdgpu_passthrough(adev)) {
1547                 /* for FIJI: In whole GPU pass-through virtualization case, after VM reboot
1548                  * some old smc fw still need driver do vPost otherwise gpu hang, while
1549                  * those smc fw version above 22.15 doesn't have this flaw, so we force
1550                  * vpost executed for smc version below 22.15
1551                  */
1552                 if (adev->asic_type == CHIP_FIJI) {
1553                         int err;
1554                         uint32_t fw_ver;
1555
1556                         err = request_firmware(&adev->pm.fw, "amdgpu/fiji_smc.bin", adev->dev);
1557                         /* force vPost if error occured */
1558                         if (err)
1559                                 return true;
1560
1561                         fw_ver = *((uint32_t *)adev->pm.fw->data + 69);
1562                         release_firmware(adev->pm.fw);
1563                         if (fw_ver < 0x00160e00)
1564                                 return true;
1565                 }
1566         }
1567
1568         /* Don't post if we need to reset whole hive on init */
1569         if (adev->gmc.xgmi.pending_reset)
1570                 return false;
1571
1572         if (adev->has_hw_reset) {
1573                 adev->has_hw_reset = false;
1574                 return true;
1575         }
1576
1577         /* bios scratch used on CIK+ */
1578         if (adev->asic_type >= CHIP_BONAIRE)
1579                 return amdgpu_atombios_scratch_need_asic_init(adev);
1580
1581         /* check MEM_SIZE for older asics */
1582         reg = amdgpu_asic_get_config_memsize(adev);
1583
1584         if ((reg != 0) && (reg != 0xffffffff))
1585                 return false;
1586
1587         return true;
1588 }
1589
1590 /*
1591  * Check whether seamless boot is supported.
1592  *
1593  * So far we only support seamless boot on DCE 3.0 or later.
1594  * If users report that it works on older ASICS as well, we may
1595  * loosen this.
1596  */
1597 bool amdgpu_device_seamless_boot_supported(struct amdgpu_device *adev)
1598 {
1599         switch (amdgpu_seamless) {
1600         case -1:
1601                 break;
1602         case 1:
1603                 return true;
1604         case 0:
1605                 return false;
1606         default:
1607                 DRM_ERROR("Invalid value for amdgpu.seamless: %d\n",
1608                           amdgpu_seamless);
1609                 return false;
1610         }
1611
1612         if (!(adev->flags & AMD_IS_APU))
1613                 return false;
1614
1615         if (adev->mman.keep_stolen_vga_memory)
1616                 return false;
1617
1618         return amdgpu_ip_version(adev, DCE_HWIP, 0) >= IP_VERSION(3, 0, 0);
1619 }
1620
1621 /*
1622  * Intel hosts such as Rocket Lake, Alder Lake, Raptor Lake and Sapphire Rapids
1623  * don't support dynamic speed switching. Until we have confirmation from Intel
1624  * that a specific host supports it, it's safer that we keep it disabled for all.
1625  *
1626  * https://edc.intel.com/content/www/us/en/design/products/platforms/details/raptor-lake-s/13th-generation-core-processors-datasheet-volume-1-of-2/005/pci-express-support/
1627  * https://gitlab.freedesktop.org/drm/amd/-/issues/2663
1628  */
1629 static bool amdgpu_device_pcie_dynamic_switching_supported(struct amdgpu_device *adev)
1630 {
1631 #if IS_ENABLED(CONFIG_X86)
1632         struct cpuinfo_x86 *c = &cpu_data(0);
1633
1634         /* eGPU change speeds based on USB4 fabric conditions */
1635         if (dev_is_removable(adev->dev))
1636                 return true;
1637
1638         if (c->x86_vendor == X86_VENDOR_INTEL)
1639                 return false;
1640 #endif
1641         return true;
1642 }
1643
1644 /**
1645  * amdgpu_device_should_use_aspm - check if the device should program ASPM
1646  *
1647  * @adev: amdgpu_device pointer
1648  *
1649  * Confirm whether the module parameter and pcie bridge agree that ASPM should
1650  * be set for this device.
1651  *
1652  * Returns true if it should be used or false if not.
1653  */
1654 bool amdgpu_device_should_use_aspm(struct amdgpu_device *adev)
1655 {
1656         switch (amdgpu_aspm) {
1657         case -1:
1658                 break;
1659         case 0:
1660                 return false;
1661         case 1:
1662                 return true;
1663         default:
1664                 return false;
1665         }
1666         if (adev->flags & AMD_IS_APU)
1667                 return false;
1668         if (!(adev->pm.pp_feature & PP_PCIE_DPM_MASK))
1669                 return false;
1670         return pcie_aspm_enabled(adev->pdev);
1671 }
1672
1673 /* if we get transitioned to only one device, take VGA back */
1674 /**
1675  * amdgpu_device_vga_set_decode - enable/disable vga decode
1676  *
1677  * @pdev: PCI device pointer
1678  * @state: enable/disable vga decode
1679  *
1680  * Enable/disable vga decode (all asics).
1681  * Returns VGA resource flags.
1682  */
1683 static unsigned int amdgpu_device_vga_set_decode(struct pci_dev *pdev,
1684                 bool state)
1685 {
1686         struct amdgpu_device *adev = drm_to_adev(pci_get_drvdata(pdev));
1687
1688         amdgpu_asic_set_vga_state(adev, state);
1689         if (state)
1690                 return VGA_RSRC_LEGACY_IO | VGA_RSRC_LEGACY_MEM |
1691                        VGA_RSRC_NORMAL_IO | VGA_RSRC_NORMAL_MEM;
1692         else
1693                 return VGA_RSRC_NORMAL_IO | VGA_RSRC_NORMAL_MEM;
1694 }
1695
1696 /**
1697  * amdgpu_device_check_block_size - validate the vm block size
1698  *
1699  * @adev: amdgpu_device pointer
1700  *
1701  * Validates the vm block size specified via module parameter.
1702  * The vm block size defines number of bits in page table versus page directory,
1703  * a page is 4KB so we have 12 bits offset, minimum 9 bits in the
1704  * page table and the remaining bits are in the page directory.
1705  */
1706 static void amdgpu_device_check_block_size(struct amdgpu_device *adev)
1707 {
1708         /* defines number of bits in page table versus page directory,
1709          * a page is 4KB so we have 12 bits offset, minimum 9 bits in the
1710          * page table and the remaining bits are in the page directory
1711          */
1712         if (amdgpu_vm_block_size == -1)
1713                 return;
1714
1715         if (amdgpu_vm_block_size < 9) {
1716                 dev_warn(adev->dev, "VM page table size (%d) too small\n",
1717                          amdgpu_vm_block_size);
1718                 amdgpu_vm_block_size = -1;
1719         }
1720 }
1721
1722 /**
1723  * amdgpu_device_check_vm_size - validate the vm size
1724  *
1725  * @adev: amdgpu_device pointer
1726  *
1727  * Validates the vm size in GB specified via module parameter.
1728  * The VM size is the size of the GPU virtual memory space in GB.
1729  */
1730 static void amdgpu_device_check_vm_size(struct amdgpu_device *adev)
1731 {
1732         /* no need to check the default value */
1733         if (amdgpu_vm_size == -1)
1734                 return;
1735
1736         if (amdgpu_vm_size < 1) {
1737                 dev_warn(adev->dev, "VM size (%d) too small, min is 1GB\n",
1738                          amdgpu_vm_size);
1739                 amdgpu_vm_size = -1;
1740         }
1741 }
1742
1743 static void amdgpu_device_check_smu_prv_buffer_size(struct amdgpu_device *adev)
1744 {
1745         struct sysinfo si;
1746         bool is_os_64 = (sizeof(void *) == 8);
1747         uint64_t total_memory;
1748         uint64_t dram_size_seven_GB = 0x1B8000000;
1749         uint64_t dram_size_three_GB = 0xB8000000;
1750
1751         if (amdgpu_smu_memory_pool_size == 0)
1752                 return;
1753
1754         if (!is_os_64) {
1755                 DRM_WARN("Not 64-bit OS, feature not supported\n");
1756                 goto def_value;
1757         }
1758         si_meminfo(&si);
1759         total_memory = (uint64_t)si.totalram * si.mem_unit;
1760
1761         if ((amdgpu_smu_memory_pool_size == 1) ||
1762                 (amdgpu_smu_memory_pool_size == 2)) {
1763                 if (total_memory < dram_size_three_GB)
1764                         goto def_value1;
1765         } else if ((amdgpu_smu_memory_pool_size == 4) ||
1766                 (amdgpu_smu_memory_pool_size == 8)) {
1767                 if (total_memory < dram_size_seven_GB)
1768                         goto def_value1;
1769         } else {
1770                 DRM_WARN("Smu memory pool size not supported\n");
1771                 goto def_value;
1772         }
1773         adev->pm.smu_prv_buffer_size = amdgpu_smu_memory_pool_size << 28;
1774
1775         return;
1776
1777 def_value1:
1778         DRM_WARN("No enough system memory\n");
1779 def_value:
1780         adev->pm.smu_prv_buffer_size = 0;
1781 }
1782
1783 static int amdgpu_device_init_apu_flags(struct amdgpu_device *adev)
1784 {
1785         if (!(adev->flags & AMD_IS_APU) ||
1786             adev->asic_type < CHIP_RAVEN)
1787                 return 0;
1788
1789         switch (adev->asic_type) {
1790         case CHIP_RAVEN:
1791                 if (adev->pdev->device == 0x15dd)
1792                         adev->apu_flags |= AMD_APU_IS_RAVEN;
1793                 if (adev->pdev->device == 0x15d8)
1794                         adev->apu_flags |= AMD_APU_IS_PICASSO;
1795                 break;
1796         case CHIP_RENOIR:
1797                 if ((adev->pdev->device == 0x1636) ||
1798                     (adev->pdev->device == 0x164c))
1799                         adev->apu_flags |= AMD_APU_IS_RENOIR;
1800                 else
1801                         adev->apu_flags |= AMD_APU_IS_GREEN_SARDINE;
1802                 break;
1803         case CHIP_VANGOGH:
1804                 adev->apu_flags |= AMD_APU_IS_VANGOGH;
1805                 break;
1806         case CHIP_YELLOW_CARP:
1807                 break;
1808         case CHIP_CYAN_SKILLFISH:
1809                 if ((adev->pdev->device == 0x13FE) ||
1810                     (adev->pdev->device == 0x143F))
1811                         adev->apu_flags |= AMD_APU_IS_CYAN_SKILLFISH2;
1812                 break;
1813         default:
1814                 break;
1815         }
1816
1817         return 0;
1818 }
1819
1820 /**
1821  * amdgpu_device_check_arguments - validate module params
1822  *
1823  * @adev: amdgpu_device pointer
1824  *
1825  * Validates certain module parameters and updates
1826  * the associated values used by the driver (all asics).
1827  */
1828 static int amdgpu_device_check_arguments(struct amdgpu_device *adev)
1829 {
1830         if (amdgpu_sched_jobs < 4) {
1831                 dev_warn(adev->dev, "sched jobs (%d) must be at least 4\n",
1832                          amdgpu_sched_jobs);
1833                 amdgpu_sched_jobs = 4;
1834         } else if (!is_power_of_2(amdgpu_sched_jobs)) {
1835                 dev_warn(adev->dev, "sched jobs (%d) must be a power of 2\n",
1836                          amdgpu_sched_jobs);
1837                 amdgpu_sched_jobs = roundup_pow_of_two(amdgpu_sched_jobs);
1838         }
1839
1840         if (amdgpu_gart_size != -1 && amdgpu_gart_size < 32) {
1841                 /* gart size must be greater or equal to 32M */
1842                 dev_warn(adev->dev, "gart size (%d) too small\n",
1843                          amdgpu_gart_size);
1844                 amdgpu_gart_size = -1;
1845         }
1846
1847         if (amdgpu_gtt_size != -1 && amdgpu_gtt_size < 32) {
1848                 /* gtt size must be greater or equal to 32M */
1849                 dev_warn(adev->dev, "gtt size (%d) too small\n",
1850                                  amdgpu_gtt_size);
1851                 amdgpu_gtt_size = -1;
1852         }
1853
1854         /* valid range is between 4 and 9 inclusive */
1855         if (amdgpu_vm_fragment_size != -1 &&
1856             (amdgpu_vm_fragment_size > 9 || amdgpu_vm_fragment_size < 4)) {
1857                 dev_warn(adev->dev, "valid range is between 4 and 9\n");
1858                 amdgpu_vm_fragment_size = -1;
1859         }
1860
1861         if (amdgpu_sched_hw_submission < 2) {
1862                 dev_warn(adev->dev, "sched hw submission jobs (%d) must be at least 2\n",
1863                          amdgpu_sched_hw_submission);
1864                 amdgpu_sched_hw_submission = 2;
1865         } else if (!is_power_of_2(amdgpu_sched_hw_submission)) {
1866                 dev_warn(adev->dev, "sched hw submission jobs (%d) must be a power of 2\n",
1867                          amdgpu_sched_hw_submission);
1868                 amdgpu_sched_hw_submission = roundup_pow_of_two(amdgpu_sched_hw_submission);
1869         }
1870
1871         if (amdgpu_reset_method < -1 || amdgpu_reset_method > 4) {
1872                 dev_warn(adev->dev, "invalid option for reset method, reverting to default\n");
1873                 amdgpu_reset_method = -1;
1874         }
1875
1876         amdgpu_device_check_smu_prv_buffer_size(adev);
1877
1878         amdgpu_device_check_vm_size(adev);
1879
1880         amdgpu_device_check_block_size(adev);
1881
1882         adev->firmware.load_type = amdgpu_ucode_get_load_type(adev, amdgpu_fw_load_type);
1883
1884         return 0;
1885 }
1886
1887 /**
1888  * amdgpu_switcheroo_set_state - set switcheroo state
1889  *
1890  * @pdev: pci dev pointer
1891  * @state: vga_switcheroo state
1892  *
1893  * Callback for the switcheroo driver.  Suspends or resumes
1894  * the asics before or after it is powered up using ACPI methods.
1895  */
1896 static void amdgpu_switcheroo_set_state(struct pci_dev *pdev,
1897                                         enum vga_switcheroo_state state)
1898 {
1899         struct drm_device *dev = pci_get_drvdata(pdev);
1900         int r;
1901
1902         if (amdgpu_device_supports_px(dev) && state == VGA_SWITCHEROO_OFF)
1903                 return;
1904
1905         if (state == VGA_SWITCHEROO_ON) {
1906                 pr_info("switched on\n");
1907                 /* don't suspend or resume card normally */
1908                 dev->switch_power_state = DRM_SWITCH_POWER_CHANGING;
1909
1910                 pci_set_power_state(pdev, PCI_D0);
1911                 amdgpu_device_load_pci_state(pdev);
1912                 r = pci_enable_device(pdev);
1913                 if (r)
1914                         DRM_WARN("pci_enable_device failed (%d)\n", r);
1915                 amdgpu_device_resume(dev, true);
1916
1917                 dev->switch_power_state = DRM_SWITCH_POWER_ON;
1918         } else {
1919                 pr_info("switched off\n");
1920                 dev->switch_power_state = DRM_SWITCH_POWER_CHANGING;
1921                 amdgpu_device_prepare(dev);
1922                 amdgpu_device_suspend(dev, true);
1923                 amdgpu_device_cache_pci_state(pdev);
1924                 /* Shut down the device */
1925                 pci_disable_device(pdev);
1926                 pci_set_power_state(pdev, PCI_D3cold);
1927                 dev->switch_power_state = DRM_SWITCH_POWER_OFF;
1928         }
1929 }
1930
1931 /**
1932  * amdgpu_switcheroo_can_switch - see if switcheroo state can change
1933  *
1934  * @pdev: pci dev pointer
1935  *
1936  * Callback for the switcheroo driver.  Check of the switcheroo
1937  * state can be changed.
1938  * Returns true if the state can be changed, false if not.
1939  */
1940 static bool amdgpu_switcheroo_can_switch(struct pci_dev *pdev)
1941 {
1942         struct drm_device *dev = pci_get_drvdata(pdev);
1943
1944        /*
1945         * FIXME: open_count is protected by drm_global_mutex but that would lead to
1946         * locking inversion with the driver load path. And the access here is
1947         * completely racy anyway. So don't bother with locking for now.
1948         */
1949         return atomic_read(&dev->open_count) == 0;
1950 }
1951
1952 static const struct vga_switcheroo_client_ops amdgpu_switcheroo_ops = {
1953         .set_gpu_state = amdgpu_switcheroo_set_state,
1954         .reprobe = NULL,
1955         .can_switch = amdgpu_switcheroo_can_switch,
1956 };
1957
1958 /**
1959  * amdgpu_device_ip_set_clockgating_state - set the CG state
1960  *
1961  * @dev: amdgpu_device pointer
1962  * @block_type: Type of hardware IP (SMU, GFX, UVD, etc.)
1963  * @state: clockgating state (gate or ungate)
1964  *
1965  * Sets the requested clockgating state for all instances of
1966  * the hardware IP specified.
1967  * Returns the error code from the last instance.
1968  */
1969 int amdgpu_device_ip_set_clockgating_state(void *dev,
1970                                            enum amd_ip_block_type block_type,
1971                                            enum amd_clockgating_state state)
1972 {
1973         struct amdgpu_device *adev = dev;
1974         int i, r = 0;
1975
1976         for (i = 0; i < adev->num_ip_blocks; i++) {
1977                 if (!adev->ip_blocks[i].status.valid)
1978                         continue;
1979                 if (adev->ip_blocks[i].version->type != block_type)
1980                         continue;
1981                 if (!adev->ip_blocks[i].version->funcs->set_clockgating_state)
1982                         continue;
1983                 r = adev->ip_blocks[i].version->funcs->set_clockgating_state(
1984                         (void *)adev, state);
1985                 if (r)
1986                         DRM_ERROR("set_clockgating_state of IP block <%s> failed %d\n",
1987                                   adev->ip_blocks[i].version->funcs->name, r);
1988         }
1989         return r;
1990 }
1991
1992 /**
1993  * amdgpu_device_ip_set_powergating_state - set the PG state
1994  *
1995  * @dev: amdgpu_device pointer
1996  * @block_type: Type of hardware IP (SMU, GFX, UVD, etc.)
1997  * @state: powergating state (gate or ungate)
1998  *
1999  * Sets the requested powergating state for all instances of
2000  * the hardware IP specified.
2001  * Returns the error code from the last instance.
2002  */
2003 int amdgpu_device_ip_set_powergating_state(void *dev,
2004                                            enum amd_ip_block_type block_type,
2005                                            enum amd_powergating_state state)
2006 {
2007         struct amdgpu_device *adev = dev;
2008         int i, r = 0;
2009
2010         for (i = 0; i < adev->num_ip_blocks; i++) {
2011                 if (!adev->ip_blocks[i].status.valid)
2012                         continue;
2013                 if (adev->ip_blocks[i].version->type != block_type)
2014                         continue;
2015                 if (!adev->ip_blocks[i].version->funcs->set_powergating_state)
2016                         continue;
2017                 r = adev->ip_blocks[i].version->funcs->set_powergating_state(
2018                         (void *)adev, state);
2019                 if (r)
2020                         DRM_ERROR("set_powergating_state of IP block <%s> failed %d\n",
2021                                   adev->ip_blocks[i].version->funcs->name, r);
2022         }
2023         return r;
2024 }
2025
2026 /**
2027  * amdgpu_device_ip_get_clockgating_state - get the CG state
2028  *
2029  * @adev: amdgpu_device pointer
2030  * @flags: clockgating feature flags
2031  *
2032  * Walks the list of IPs on the device and updates the clockgating
2033  * flags for each IP.
2034  * Updates @flags with the feature flags for each hardware IP where
2035  * clockgating is enabled.
2036  */
2037 void amdgpu_device_ip_get_clockgating_state(struct amdgpu_device *adev,
2038                                             u64 *flags)
2039 {
2040         int i;
2041
2042         for (i = 0; i < adev->num_ip_blocks; i++) {
2043                 if (!adev->ip_blocks[i].status.valid)
2044                         continue;
2045                 if (adev->ip_blocks[i].version->funcs->get_clockgating_state)
2046                         adev->ip_blocks[i].version->funcs->get_clockgating_state((void *)adev, flags);
2047         }
2048 }
2049
2050 /**
2051  * amdgpu_device_ip_wait_for_idle - wait for idle
2052  *
2053  * @adev: amdgpu_device pointer
2054  * @block_type: Type of hardware IP (SMU, GFX, UVD, etc.)
2055  *
2056  * Waits for the request hardware IP to be idle.
2057  * Returns 0 for success or a negative error code on failure.
2058  */
2059 int amdgpu_device_ip_wait_for_idle(struct amdgpu_device *adev,
2060                                    enum amd_ip_block_type block_type)
2061 {
2062         int i, r;
2063
2064         for (i = 0; i < adev->num_ip_blocks; i++) {
2065                 if (!adev->ip_blocks[i].status.valid)
2066                         continue;
2067                 if (adev->ip_blocks[i].version->type == block_type) {
2068                         r = adev->ip_blocks[i].version->funcs->wait_for_idle((void *)adev);
2069                         if (r)
2070                                 return r;
2071                         break;
2072                 }
2073         }
2074         return 0;
2075
2076 }
2077
2078 /**
2079  * amdgpu_device_ip_is_idle - is the hardware IP idle
2080  *
2081  * @adev: amdgpu_device pointer
2082  * @block_type: Type of hardware IP (SMU, GFX, UVD, etc.)
2083  *
2084  * Check if the hardware IP is idle or not.
2085  * Returns true if it the IP is idle, false if not.
2086  */
2087 bool amdgpu_device_ip_is_idle(struct amdgpu_device *adev,
2088                               enum amd_ip_block_type block_type)
2089 {
2090         int i;
2091
2092         for (i = 0; i < adev->num_ip_blocks; i++) {
2093                 if (!adev->ip_blocks[i].status.valid)
2094                         continue;
2095                 if (adev->ip_blocks[i].version->type == block_type)
2096                         return adev->ip_blocks[i].version->funcs->is_idle((void *)adev);
2097         }
2098         return true;
2099
2100 }
2101
2102 /**
2103  * amdgpu_device_ip_get_ip_block - get a hw IP pointer
2104  *
2105  * @adev: amdgpu_device pointer
2106  * @type: Type of hardware IP (SMU, GFX, UVD, etc.)
2107  *
2108  * Returns a pointer to the hardware IP block structure
2109  * if it exists for the asic, otherwise NULL.
2110  */
2111 struct amdgpu_ip_block *
2112 amdgpu_device_ip_get_ip_block(struct amdgpu_device *adev,
2113                               enum amd_ip_block_type type)
2114 {
2115         int i;
2116
2117         for (i = 0; i < adev->num_ip_blocks; i++)
2118                 if (adev->ip_blocks[i].version->type == type)
2119                         return &adev->ip_blocks[i];
2120
2121         return NULL;
2122 }
2123
2124 /**
2125  * amdgpu_device_ip_block_version_cmp
2126  *
2127  * @adev: amdgpu_device pointer
2128  * @type: enum amd_ip_block_type
2129  * @major: major version
2130  * @minor: minor version
2131  *
2132  * return 0 if equal or greater
2133  * return 1 if smaller or the ip_block doesn't exist
2134  */
2135 int amdgpu_device_ip_block_version_cmp(struct amdgpu_device *adev,
2136                                        enum amd_ip_block_type type,
2137                                        u32 major, u32 minor)
2138 {
2139         struct amdgpu_ip_block *ip_block = amdgpu_device_ip_get_ip_block(adev, type);
2140
2141         if (ip_block && ((ip_block->version->major > major) ||
2142                         ((ip_block->version->major == major) &&
2143                         (ip_block->version->minor >= minor))))
2144                 return 0;
2145
2146         return 1;
2147 }
2148
2149 /**
2150  * amdgpu_device_ip_block_add
2151  *
2152  * @adev: amdgpu_device pointer
2153  * @ip_block_version: pointer to the IP to add
2154  *
2155  * Adds the IP block driver information to the collection of IPs
2156  * on the asic.
2157  */
2158 int amdgpu_device_ip_block_add(struct amdgpu_device *adev,
2159                                const struct amdgpu_ip_block_version *ip_block_version)
2160 {
2161         if (!ip_block_version)
2162                 return -EINVAL;
2163
2164         switch (ip_block_version->type) {
2165         case AMD_IP_BLOCK_TYPE_VCN:
2166                 if (adev->harvest_ip_mask & AMD_HARVEST_IP_VCN_MASK)
2167                         return 0;
2168                 break;
2169         case AMD_IP_BLOCK_TYPE_JPEG:
2170                 if (adev->harvest_ip_mask & AMD_HARVEST_IP_JPEG_MASK)
2171                         return 0;
2172                 break;
2173         default:
2174                 break;
2175         }
2176
2177         DRM_INFO("add ip block number %d <%s>\n", adev->num_ip_blocks,
2178                   ip_block_version->funcs->name);
2179
2180         adev->ip_blocks[adev->num_ip_blocks++].version = ip_block_version;
2181
2182         return 0;
2183 }
2184
2185 /**
2186  * amdgpu_device_enable_virtual_display - enable virtual display feature
2187  *
2188  * @adev: amdgpu_device pointer
2189  *
2190  * Enabled the virtual display feature if the user has enabled it via
2191  * the module parameter virtual_display.  This feature provides a virtual
2192  * display hardware on headless boards or in virtualized environments.
2193  * This function parses and validates the configuration string specified by
2194  * the user and configues the virtual display configuration (number of
2195  * virtual connectors, crtcs, etc.) specified.
2196  */
2197 static void amdgpu_device_enable_virtual_display(struct amdgpu_device *adev)
2198 {
2199         adev->enable_virtual_display = false;
2200
2201         if (amdgpu_virtual_display) {
2202                 const char *pci_address_name = pci_name(adev->pdev);
2203                 char *pciaddstr, *pciaddstr_tmp, *pciaddname_tmp, *pciaddname;
2204
2205                 pciaddstr = kstrdup(amdgpu_virtual_display, GFP_KERNEL);
2206                 pciaddstr_tmp = pciaddstr;
2207                 while ((pciaddname_tmp = strsep(&pciaddstr_tmp, ";"))) {
2208                         pciaddname = strsep(&pciaddname_tmp, ",");
2209                         if (!strcmp("all", pciaddname)
2210                             || !strcmp(pci_address_name, pciaddname)) {
2211                                 long num_crtc;
2212                                 int res = -1;
2213
2214                                 adev->enable_virtual_display = true;
2215
2216                                 if (pciaddname_tmp)
2217                                         res = kstrtol(pciaddname_tmp, 10,
2218                                                       &num_crtc);
2219
2220                                 if (!res) {
2221                                         if (num_crtc < 1)
2222                                                 num_crtc = 1;
2223                                         if (num_crtc > 6)
2224                                                 num_crtc = 6;
2225                                         adev->mode_info.num_crtc = num_crtc;
2226                                 } else {
2227                                         adev->mode_info.num_crtc = 1;
2228                                 }
2229                                 break;
2230                         }
2231                 }
2232
2233                 DRM_INFO("virtual display string:%s, %s:virtual_display:%d, num_crtc:%d\n",
2234                          amdgpu_virtual_display, pci_address_name,
2235                          adev->enable_virtual_display, adev->mode_info.num_crtc);
2236
2237                 kfree(pciaddstr);
2238         }
2239 }
2240
2241 void amdgpu_device_set_sriov_virtual_display(struct amdgpu_device *adev)
2242 {
2243         if (amdgpu_sriov_vf(adev) && !adev->enable_virtual_display) {
2244                 adev->mode_info.num_crtc = 1;
2245                 adev->enable_virtual_display = true;
2246                 DRM_INFO("virtual_display:%d, num_crtc:%d\n",
2247                          adev->enable_virtual_display, adev->mode_info.num_crtc);
2248         }
2249 }
2250
2251 /**
2252  * amdgpu_device_parse_gpu_info_fw - parse gpu info firmware
2253  *
2254  * @adev: amdgpu_device pointer
2255  *
2256  * Parses the asic configuration parameters specified in the gpu info
2257  * firmware and makes them availale to the driver for use in configuring
2258  * the asic.
2259  * Returns 0 on success, -EINVAL on failure.
2260  */
2261 static int amdgpu_device_parse_gpu_info_fw(struct amdgpu_device *adev)
2262 {
2263         const char *chip_name;
2264         char fw_name[40];
2265         int err;
2266         const struct gpu_info_firmware_header_v1_0 *hdr;
2267
2268         adev->firmware.gpu_info_fw = NULL;
2269
2270         if (adev->mman.discovery_bin)
2271                 return 0;
2272
2273         switch (adev->asic_type) {
2274         default:
2275                 return 0;
2276         case CHIP_VEGA10:
2277                 chip_name = "vega10";
2278                 break;
2279         case CHIP_VEGA12:
2280                 chip_name = "vega12";
2281                 break;
2282         case CHIP_RAVEN:
2283                 if (adev->apu_flags & AMD_APU_IS_RAVEN2)
2284                         chip_name = "raven2";
2285                 else if (adev->apu_flags & AMD_APU_IS_PICASSO)
2286                         chip_name = "picasso";
2287                 else
2288                         chip_name = "raven";
2289                 break;
2290         case CHIP_ARCTURUS:
2291                 chip_name = "arcturus";
2292                 break;
2293         case CHIP_NAVI12:
2294                 chip_name = "navi12";
2295                 break;
2296         }
2297
2298         snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_gpu_info.bin", chip_name);
2299         err = amdgpu_ucode_request(adev, &adev->firmware.gpu_info_fw, fw_name);
2300         if (err) {
2301                 dev_err(adev->dev,
2302                         "Failed to get gpu_info firmware \"%s\"\n",
2303                         fw_name);
2304                 goto out;
2305         }
2306
2307         hdr = (const struct gpu_info_firmware_header_v1_0 *)adev->firmware.gpu_info_fw->data;
2308         amdgpu_ucode_print_gpu_info_hdr(&hdr->header);
2309
2310         switch (hdr->version_major) {
2311         case 1:
2312         {
2313                 const struct gpu_info_firmware_v1_0 *gpu_info_fw =
2314                         (const struct gpu_info_firmware_v1_0 *)(adev->firmware.gpu_info_fw->data +
2315                                                                 le32_to_cpu(hdr->header.ucode_array_offset_bytes));
2316
2317                 /*
2318                  * Should be droped when DAL no longer needs it.
2319                  */
2320                 if (adev->asic_type == CHIP_NAVI12)
2321                         goto parse_soc_bounding_box;
2322
2323                 adev->gfx.config.max_shader_engines = le32_to_cpu(gpu_info_fw->gc_num_se);
2324                 adev->gfx.config.max_cu_per_sh = le32_to_cpu(gpu_info_fw->gc_num_cu_per_sh);
2325                 adev->gfx.config.max_sh_per_se = le32_to_cpu(gpu_info_fw->gc_num_sh_per_se);
2326                 adev->gfx.config.max_backends_per_se = le32_to_cpu(gpu_info_fw->gc_num_rb_per_se);
2327                 adev->gfx.config.max_texture_channel_caches =
2328                         le32_to_cpu(gpu_info_fw->gc_num_tccs);
2329                 adev->gfx.config.max_gprs = le32_to_cpu(gpu_info_fw->gc_num_gprs);
2330                 adev->gfx.config.max_gs_threads = le32_to_cpu(gpu_info_fw->gc_num_max_gs_thds);
2331                 adev->gfx.config.gs_vgt_table_depth = le32_to_cpu(gpu_info_fw->gc_gs_table_depth);
2332                 adev->gfx.config.gs_prim_buffer_depth = le32_to_cpu(gpu_info_fw->gc_gsprim_buff_depth);
2333                 adev->gfx.config.double_offchip_lds_buf =
2334                         le32_to_cpu(gpu_info_fw->gc_double_offchip_lds_buffer);
2335                 adev->gfx.cu_info.wave_front_size = le32_to_cpu(gpu_info_fw->gc_wave_size);
2336                 adev->gfx.cu_info.max_waves_per_simd =
2337                         le32_to_cpu(gpu_info_fw->gc_max_waves_per_simd);
2338                 adev->gfx.cu_info.max_scratch_slots_per_cu =
2339                         le32_to_cpu(gpu_info_fw->gc_max_scratch_slots_per_cu);
2340                 adev->gfx.cu_info.lds_size = le32_to_cpu(gpu_info_fw->gc_lds_size);
2341                 if (hdr->version_minor >= 1) {
2342                         const struct gpu_info_firmware_v1_1 *gpu_info_fw =
2343                                 (const struct gpu_info_firmware_v1_1 *)(adev->firmware.gpu_info_fw->data +
2344                                                                         le32_to_cpu(hdr->header.ucode_array_offset_bytes));
2345                         adev->gfx.config.num_sc_per_sh =
2346                                 le32_to_cpu(gpu_info_fw->num_sc_per_sh);
2347                         adev->gfx.config.num_packer_per_sc =
2348                                 le32_to_cpu(gpu_info_fw->num_packer_per_sc);
2349                 }
2350
2351 parse_soc_bounding_box:
2352                 /*
2353                  * soc bounding box info is not integrated in disocovery table,
2354                  * we always need to parse it from gpu info firmware if needed.
2355                  */
2356                 if (hdr->version_minor == 2) {
2357                         const struct gpu_info_firmware_v1_2 *gpu_info_fw =
2358                                 (const struct gpu_info_firmware_v1_2 *)(adev->firmware.gpu_info_fw->data +
2359                                                                         le32_to_cpu(hdr->header.ucode_array_offset_bytes));
2360                         adev->dm.soc_bounding_box = &gpu_info_fw->soc_bounding_box;
2361                 }
2362                 break;
2363         }
2364         default:
2365                 dev_err(adev->dev,
2366                         "Unsupported gpu_info table %d\n", hdr->header.ucode_version);
2367                 err = -EINVAL;
2368                 goto out;
2369         }
2370 out:
2371         return err;
2372 }
2373
2374 /**
2375  * amdgpu_device_ip_early_init - run early init for hardware IPs
2376  *
2377  * @adev: amdgpu_device pointer
2378  *
2379  * Early initialization pass for hardware IPs.  The hardware IPs that make
2380  * up each asic are discovered each IP's early_init callback is run.  This
2381  * is the first stage in initializing the asic.
2382  * Returns 0 on success, negative error code on failure.
2383  */
2384 static int amdgpu_device_ip_early_init(struct amdgpu_device *adev)
2385 {
2386         struct pci_dev *parent;
2387         int i, r;
2388         bool total;
2389
2390         amdgpu_device_enable_virtual_display(adev);
2391
2392         if (amdgpu_sriov_vf(adev)) {
2393                 r = amdgpu_virt_request_full_gpu(adev, true);
2394                 if (r)
2395                         return r;
2396         }
2397
2398         switch (adev->asic_type) {
2399 #ifdef CONFIG_DRM_AMDGPU_SI
2400         case CHIP_VERDE:
2401         case CHIP_TAHITI:
2402         case CHIP_PITCAIRN:
2403         case CHIP_OLAND:
2404         case CHIP_HAINAN:
2405                 adev->family = AMDGPU_FAMILY_SI;
2406                 r = si_set_ip_blocks(adev);
2407                 if (r)
2408                         return r;
2409                 break;
2410 #endif
2411 #ifdef CONFIG_DRM_AMDGPU_CIK
2412         case CHIP_BONAIRE:
2413         case CHIP_HAWAII:
2414         case CHIP_KAVERI:
2415         case CHIP_KABINI:
2416         case CHIP_MULLINS:
2417                 if (adev->flags & AMD_IS_APU)
2418                         adev->family = AMDGPU_FAMILY_KV;
2419                 else
2420                         adev->family = AMDGPU_FAMILY_CI;
2421
2422                 r = cik_set_ip_blocks(adev);
2423                 if (r)
2424                         return r;
2425                 break;
2426 #endif
2427         case CHIP_TOPAZ:
2428         case CHIP_TONGA:
2429         case CHIP_FIJI:
2430         case CHIP_POLARIS10:
2431         case CHIP_POLARIS11:
2432         case CHIP_POLARIS12:
2433         case CHIP_VEGAM:
2434         case CHIP_CARRIZO:
2435         case CHIP_STONEY:
2436                 if (adev->flags & AMD_IS_APU)
2437                         adev->family = AMDGPU_FAMILY_CZ;
2438                 else
2439                         adev->family = AMDGPU_FAMILY_VI;
2440
2441                 r = vi_set_ip_blocks(adev);
2442                 if (r)
2443                         return r;
2444                 break;
2445         default:
2446                 r = amdgpu_discovery_set_ip_blocks(adev);
2447                 if (r)
2448                         return r;
2449                 break;
2450         }
2451
2452         if (amdgpu_has_atpx() &&
2453             (amdgpu_is_atpx_hybrid() ||
2454              amdgpu_has_atpx_dgpu_power_cntl()) &&
2455             ((adev->flags & AMD_IS_APU) == 0) &&
2456             !dev_is_removable(&adev->pdev->dev))
2457                 adev->flags |= AMD_IS_PX;
2458
2459         if (!(adev->flags & AMD_IS_APU)) {
2460                 parent = pcie_find_root_port(adev->pdev);
2461                 adev->has_pr3 = parent ? pci_pr3_present(parent) : false;
2462         }
2463
2464
2465         adev->pm.pp_feature = amdgpu_pp_feature_mask;
2466         if (amdgpu_sriov_vf(adev) || sched_policy == KFD_SCHED_POLICY_NO_HWS)
2467                 adev->pm.pp_feature &= ~PP_GFXOFF_MASK;
2468         if (amdgpu_sriov_vf(adev) && adev->asic_type == CHIP_SIENNA_CICHLID)
2469                 adev->pm.pp_feature &= ~PP_OVERDRIVE_MASK;
2470         if (!amdgpu_device_pcie_dynamic_switching_supported(adev))
2471                 adev->pm.pp_feature &= ~PP_PCIE_DPM_MASK;
2472
2473         total = true;
2474         for (i = 0; i < adev->num_ip_blocks; i++) {
2475                 if ((amdgpu_ip_block_mask & (1 << i)) == 0) {
2476                         DRM_WARN("disabled ip block: %d <%s>\n",
2477                                   i, adev->ip_blocks[i].version->funcs->name);
2478                         adev->ip_blocks[i].status.valid = false;
2479                 } else {
2480                         if (adev->ip_blocks[i].version->funcs->early_init) {
2481                                 r = adev->ip_blocks[i].version->funcs->early_init((void *)adev);
2482                                 if (r == -ENOENT) {
2483                                         adev->ip_blocks[i].status.valid = false;
2484                                 } else if (r) {
2485                                         DRM_ERROR("early_init of IP block <%s> failed %d\n",
2486                                                   adev->ip_blocks[i].version->funcs->name, r);
2487                                         total = false;
2488                                 } else {
2489                                         adev->ip_blocks[i].status.valid = true;
2490                                 }
2491                         } else {
2492                                 adev->ip_blocks[i].status.valid = true;
2493                         }
2494                 }
2495                 /* get the vbios after the asic_funcs are set up */
2496                 if (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_COMMON) {
2497                         r = amdgpu_device_parse_gpu_info_fw(adev);
2498                         if (r)
2499                                 return r;
2500
2501                         /* Read BIOS */
2502                         if (amdgpu_device_read_bios(adev)) {
2503                                 if (!amdgpu_get_bios(adev))
2504                                         return -EINVAL;
2505
2506                                 r = amdgpu_atombios_init(adev);
2507                                 if (r) {
2508                                         dev_err(adev->dev, "amdgpu_atombios_init failed\n");
2509                                         amdgpu_vf_error_put(adev, AMDGIM_ERROR_VF_ATOMBIOS_INIT_FAIL, 0, 0);
2510                                         return r;
2511                                 }
2512                         }
2513
2514                         /*get pf2vf msg info at it's earliest time*/
2515                         if (amdgpu_sriov_vf(adev))
2516                                 amdgpu_virt_init_data_exchange(adev);
2517
2518                 }
2519         }
2520         if (!total)
2521                 return -ENODEV;
2522
2523         amdgpu_amdkfd_device_probe(adev);
2524         adev->cg_flags &= amdgpu_cg_mask;
2525         adev->pg_flags &= amdgpu_pg_mask;
2526
2527         return 0;
2528 }
2529
2530 static int amdgpu_device_ip_hw_init_phase1(struct amdgpu_device *adev)
2531 {
2532         int i, r;
2533
2534         for (i = 0; i < adev->num_ip_blocks; i++) {
2535                 if (!adev->ip_blocks[i].status.sw)
2536                         continue;
2537                 if (adev->ip_blocks[i].status.hw)
2538                         continue;
2539                 if (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_COMMON ||
2540                     (amdgpu_sriov_vf(adev) && (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_PSP)) ||
2541                     adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_IH) {
2542                         r = adev->ip_blocks[i].version->funcs->hw_init(adev);
2543                         if (r) {
2544                                 DRM_ERROR("hw_init of IP block <%s> failed %d\n",
2545                                           adev->ip_blocks[i].version->funcs->name, r);
2546                                 return r;
2547                         }
2548                         adev->ip_blocks[i].status.hw = true;
2549                 }
2550         }
2551
2552         return 0;
2553 }
2554
2555 static int amdgpu_device_ip_hw_init_phase2(struct amdgpu_device *adev)
2556 {
2557         int i, r;
2558
2559         for (i = 0; i < adev->num_ip_blocks; i++) {
2560                 if (!adev->ip_blocks[i].status.sw)
2561                         continue;
2562                 if (adev->ip_blocks[i].status.hw)
2563                         continue;
2564                 r = adev->ip_blocks[i].version->funcs->hw_init(adev);
2565                 if (r) {
2566                         DRM_ERROR("hw_init of IP block <%s> failed %d\n",
2567                                   adev->ip_blocks[i].version->funcs->name, r);
2568                         return r;
2569                 }
2570                 adev->ip_blocks[i].status.hw = true;
2571         }
2572
2573         return 0;
2574 }
2575
2576 static int amdgpu_device_fw_loading(struct amdgpu_device *adev)
2577 {
2578         int r = 0;
2579         int i;
2580         uint32_t smu_version;
2581
2582         if (adev->asic_type >= CHIP_VEGA10) {
2583                 for (i = 0; i < adev->num_ip_blocks; i++) {
2584                         if (adev->ip_blocks[i].version->type != AMD_IP_BLOCK_TYPE_PSP)
2585                                 continue;
2586
2587                         if (!adev->ip_blocks[i].status.sw)
2588                                 continue;
2589
2590                         /* no need to do the fw loading again if already done*/
2591                         if (adev->ip_blocks[i].status.hw == true)
2592                                 break;
2593
2594                         if (amdgpu_in_reset(adev) || adev->in_suspend) {
2595                                 r = adev->ip_blocks[i].version->funcs->resume(adev);
2596                                 if (r) {
2597                                         DRM_ERROR("resume of IP block <%s> failed %d\n",
2598                                                           adev->ip_blocks[i].version->funcs->name, r);
2599                                         return r;
2600                                 }
2601                         } else {
2602                                 r = adev->ip_blocks[i].version->funcs->hw_init(adev);
2603                                 if (r) {
2604                                         DRM_ERROR("hw_init of IP block <%s> failed %d\n",
2605                                                           adev->ip_blocks[i].version->funcs->name, r);
2606                                         return r;
2607                                 }
2608                         }
2609
2610                         adev->ip_blocks[i].status.hw = true;
2611                         break;
2612                 }
2613         }
2614
2615         if (!amdgpu_sriov_vf(adev) || adev->asic_type == CHIP_TONGA)
2616                 r = amdgpu_pm_load_smu_firmware(adev, &smu_version);
2617
2618         return r;
2619 }
2620
2621 static int amdgpu_device_init_schedulers(struct amdgpu_device *adev)
2622 {
2623         long timeout;
2624         int r, i;
2625
2626         for (i = 0; i < AMDGPU_MAX_RINGS; ++i) {
2627                 struct amdgpu_ring *ring = adev->rings[i];
2628
2629                 /* No need to setup the GPU scheduler for rings that don't need it */
2630                 if (!ring || ring->no_scheduler)
2631                         continue;
2632
2633                 switch (ring->funcs->type) {
2634                 case AMDGPU_RING_TYPE_GFX:
2635                         timeout = adev->gfx_timeout;
2636                         break;
2637                 case AMDGPU_RING_TYPE_COMPUTE:
2638                         timeout = adev->compute_timeout;
2639                         break;
2640                 case AMDGPU_RING_TYPE_SDMA:
2641                         timeout = adev->sdma_timeout;
2642                         break;
2643                 default:
2644                         timeout = adev->video_timeout;
2645                         break;
2646                 }
2647
2648                 r = drm_sched_init(&ring->sched, &amdgpu_sched_ops, NULL,
2649                                    DRM_SCHED_PRIORITY_COUNT,
2650                                    ring->num_hw_submission, 0,
2651                                    timeout, adev->reset_domain->wq,
2652                                    ring->sched_score, ring->name,
2653                                    adev->dev);
2654                 if (r) {
2655                         DRM_ERROR("Failed to create scheduler on ring %s.\n",
2656                                   ring->name);
2657                         return r;
2658                 }
2659                 r = amdgpu_uvd_entity_init(adev, ring);
2660                 if (r) {
2661                         DRM_ERROR("Failed to create UVD scheduling entity on ring %s.\n",
2662                                   ring->name);
2663                         return r;
2664                 }
2665                 r = amdgpu_vce_entity_init(adev, ring);
2666                 if (r) {
2667                         DRM_ERROR("Failed to create VCE scheduling entity on ring %s.\n",
2668                                   ring->name);
2669                         return r;
2670                 }
2671         }
2672
2673         amdgpu_xcp_update_partition_sched_list(adev);
2674
2675         return 0;
2676 }
2677
2678
2679 /**
2680  * amdgpu_device_ip_init - run init for hardware IPs
2681  *
2682  * @adev: amdgpu_device pointer
2683  *
2684  * Main initialization pass for hardware IPs.  The list of all the hardware
2685  * IPs that make up the asic is walked and the sw_init and hw_init callbacks
2686  * are run.  sw_init initializes the software state associated with each IP
2687  * and hw_init initializes the hardware associated with each IP.
2688  * Returns 0 on success, negative error code on failure.
2689  */
2690 static int amdgpu_device_ip_init(struct amdgpu_device *adev)
2691 {
2692         int i, r;
2693
2694         r = amdgpu_ras_init(adev);
2695         if (r)
2696                 return r;
2697
2698         for (i = 0; i < adev->num_ip_blocks; i++) {
2699                 if (!adev->ip_blocks[i].status.valid)
2700                         continue;
2701                 r = adev->ip_blocks[i].version->funcs->sw_init((void *)adev);
2702                 if (r) {
2703                         DRM_ERROR("sw_init of IP block <%s> failed %d\n",
2704                                   adev->ip_blocks[i].version->funcs->name, r);
2705                         goto init_failed;
2706                 }
2707                 adev->ip_blocks[i].status.sw = true;
2708
2709                 if (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_COMMON) {
2710                         /* need to do common hw init early so everything is set up for gmc */
2711                         r = adev->ip_blocks[i].version->funcs->hw_init((void *)adev);
2712                         if (r) {
2713                                 DRM_ERROR("hw_init %d failed %d\n", i, r);
2714                                 goto init_failed;
2715                         }
2716                         adev->ip_blocks[i].status.hw = true;
2717                 } else if (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_GMC) {
2718                         /* need to do gmc hw init early so we can allocate gpu mem */
2719                         /* Try to reserve bad pages early */
2720                         if (amdgpu_sriov_vf(adev))
2721                                 amdgpu_virt_exchange_data(adev);
2722
2723                         r = amdgpu_device_mem_scratch_init(adev);
2724                         if (r) {
2725                                 DRM_ERROR("amdgpu_mem_scratch_init failed %d\n", r);
2726                                 goto init_failed;
2727                         }
2728                         r = adev->ip_blocks[i].version->funcs->hw_init((void *)adev);
2729                         if (r) {
2730                                 DRM_ERROR("hw_init %d failed %d\n", i, r);
2731                                 goto init_failed;
2732                         }
2733                         r = amdgpu_device_wb_init(adev);
2734                         if (r) {
2735                                 DRM_ERROR("amdgpu_device_wb_init failed %d\n", r);
2736                                 goto init_failed;
2737                         }
2738                         adev->ip_blocks[i].status.hw = true;
2739
2740                         /* right after GMC hw init, we create CSA */
2741                         if (adev->gfx.mcbp) {
2742                                 r = amdgpu_allocate_static_csa(adev, &adev->virt.csa_obj,
2743                                                                AMDGPU_GEM_DOMAIN_VRAM |
2744                                                                AMDGPU_GEM_DOMAIN_GTT,
2745                                                                AMDGPU_CSA_SIZE);
2746                                 if (r) {
2747                                         DRM_ERROR("allocate CSA failed %d\n", r);
2748                                         goto init_failed;
2749                                 }
2750                         }
2751
2752                         r = amdgpu_seq64_init(adev);
2753                         if (r) {
2754                                 DRM_ERROR("allocate seq64 failed %d\n", r);
2755                                 goto init_failed;
2756                         }
2757                 }
2758         }
2759
2760         if (amdgpu_sriov_vf(adev))
2761                 amdgpu_virt_init_data_exchange(adev);
2762
2763         r = amdgpu_ib_pool_init(adev);
2764         if (r) {
2765                 dev_err(adev->dev, "IB initialization failed (%d).\n", r);
2766                 amdgpu_vf_error_put(adev, AMDGIM_ERROR_VF_IB_INIT_FAIL, 0, r);
2767                 goto init_failed;
2768         }
2769
2770         r = amdgpu_ucode_create_bo(adev); /* create ucode bo when sw_init complete*/
2771         if (r)
2772                 goto init_failed;
2773
2774         r = amdgpu_device_ip_hw_init_phase1(adev);
2775         if (r)
2776                 goto init_failed;
2777
2778         r = amdgpu_device_fw_loading(adev);
2779         if (r)
2780                 goto init_failed;
2781
2782         r = amdgpu_device_ip_hw_init_phase2(adev);
2783         if (r)
2784                 goto init_failed;
2785
2786         /*
2787          * retired pages will be loaded from eeprom and reserved here,
2788          * it should be called after amdgpu_device_ip_hw_init_phase2  since
2789          * for some ASICs the RAS EEPROM code relies on SMU fully functioning
2790          * for I2C communication which only true at this point.
2791          *
2792          * amdgpu_ras_recovery_init may fail, but the upper only cares the
2793          * failure from bad gpu situation and stop amdgpu init process
2794          * accordingly. For other failed cases, it will still release all
2795          * the resource and print error message, rather than returning one
2796          * negative value to upper level.
2797          *
2798          * Note: theoretically, this should be called before all vram allocations
2799          * to protect retired page from abusing
2800          */
2801         r = amdgpu_ras_recovery_init(adev);
2802         if (r)
2803                 goto init_failed;
2804
2805         /**
2806          * In case of XGMI grab extra reference for reset domain for this device
2807          */
2808         if (adev->gmc.xgmi.num_physical_nodes > 1) {
2809                 if (amdgpu_xgmi_add_device(adev) == 0) {
2810                         if (!amdgpu_sriov_vf(adev)) {
2811                                 struct amdgpu_hive_info *hive = amdgpu_get_xgmi_hive(adev);
2812
2813                                 if (WARN_ON(!hive)) {
2814                                         r = -ENOENT;
2815                                         goto init_failed;
2816                                 }
2817
2818                                 if (!hive->reset_domain ||
2819                                     !amdgpu_reset_get_reset_domain(hive->reset_domain)) {
2820                                         r = -ENOENT;
2821                                         amdgpu_put_xgmi_hive(hive);
2822                                         goto init_failed;
2823                                 }
2824
2825                                 /* Drop the early temporary reset domain we created for device */
2826                                 amdgpu_reset_put_reset_domain(adev->reset_domain);
2827                                 adev->reset_domain = hive->reset_domain;
2828                                 amdgpu_put_xgmi_hive(hive);
2829                         }
2830                 }
2831         }
2832
2833         r = amdgpu_device_init_schedulers(adev);
2834         if (r)
2835                 goto init_failed;
2836
2837         if (adev->mman.buffer_funcs_ring->sched.ready)
2838                 amdgpu_ttm_set_buffer_funcs_status(adev, true);
2839
2840         /* Don't init kfd if whole hive need to be reset during init */
2841         if (!adev->gmc.xgmi.pending_reset) {
2842                 kgd2kfd_init_zone_device(adev);
2843                 amdgpu_amdkfd_device_init(adev);
2844         }
2845
2846         amdgpu_fru_get_product_info(adev);
2847
2848 init_failed:
2849
2850         return r;
2851 }
2852
2853 /**
2854  * amdgpu_device_fill_reset_magic - writes reset magic to gart pointer
2855  *
2856  * @adev: amdgpu_device pointer
2857  *
2858  * Writes a reset magic value to the gart pointer in VRAM.  The driver calls
2859  * this function before a GPU reset.  If the value is retained after a
2860  * GPU reset, VRAM has not been lost.  Some GPU resets may destry VRAM contents.
2861  */
2862 static void amdgpu_device_fill_reset_magic(struct amdgpu_device *adev)
2863 {
2864         memcpy(adev->reset_magic, adev->gart.ptr, AMDGPU_RESET_MAGIC_NUM);
2865 }
2866
2867 /**
2868  * amdgpu_device_check_vram_lost - check if vram is valid
2869  *
2870  * @adev: amdgpu_device pointer
2871  *
2872  * Checks the reset magic value written to the gart pointer in VRAM.
2873  * The driver calls this after a GPU reset to see if the contents of
2874  * VRAM is lost or now.
2875  * returns true if vram is lost, false if not.
2876  */
2877 static bool amdgpu_device_check_vram_lost(struct amdgpu_device *adev)
2878 {
2879         if (memcmp(adev->gart.ptr, adev->reset_magic,
2880                         AMDGPU_RESET_MAGIC_NUM))
2881                 return true;
2882
2883         if (!amdgpu_in_reset(adev))
2884                 return false;
2885
2886         /*
2887          * For all ASICs with baco/mode1 reset, the VRAM is
2888          * always assumed to be lost.
2889          */
2890         switch (amdgpu_asic_reset_method(adev)) {
2891         case AMD_RESET_METHOD_BACO:
2892         case AMD_RESET_METHOD_MODE1:
2893                 return true;
2894         default:
2895                 return false;
2896         }
2897 }
2898
2899 /**
2900  * amdgpu_device_set_cg_state - set clockgating for amdgpu device
2901  *
2902  * @adev: amdgpu_device pointer
2903  * @state: clockgating state (gate or ungate)
2904  *
2905  * The list of all the hardware IPs that make up the asic is walked and the
2906  * set_clockgating_state callbacks are run.
2907  * Late initialization pass enabling clockgating for hardware IPs.
2908  * Fini or suspend, pass disabling clockgating for hardware IPs.
2909  * Returns 0 on success, negative error code on failure.
2910  */
2911
2912 int amdgpu_device_set_cg_state(struct amdgpu_device *adev,
2913                                enum amd_clockgating_state state)
2914 {
2915         int i, j, r;
2916
2917         if (amdgpu_emu_mode == 1)
2918                 return 0;
2919
2920         for (j = 0; j < adev->num_ip_blocks; j++) {
2921                 i = state == AMD_CG_STATE_GATE ? j : adev->num_ip_blocks - j - 1;
2922                 if (!adev->ip_blocks[i].status.late_initialized)
2923                         continue;
2924                 /* skip CG for GFX, SDMA on S0ix */
2925                 if (adev->in_s0ix &&
2926                     (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_GFX ||
2927                      adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_SDMA))
2928                         continue;
2929                 /* skip CG for VCE/UVD, it's handled specially */
2930                 if (adev->ip_blocks[i].version->type != AMD_IP_BLOCK_TYPE_UVD &&
2931                     adev->ip_blocks[i].version->type != AMD_IP_BLOCK_TYPE_VCE &&
2932                     adev->ip_blocks[i].version->type != AMD_IP_BLOCK_TYPE_VCN &&
2933                     adev->ip_blocks[i].version->type != AMD_IP_BLOCK_TYPE_JPEG &&
2934                     adev->ip_blocks[i].version->funcs->set_clockgating_state) {
2935                         /* enable clockgating to save power */
2936                         r = adev->ip_blocks[i].version->funcs->set_clockgating_state((void *)adev,
2937                                                                                      state);
2938                         if (r) {
2939                                 DRM_ERROR("set_clockgating_state(gate) of IP block <%s> failed %d\n",
2940                                           adev->ip_blocks[i].version->funcs->name, r);
2941                                 return r;
2942                         }
2943                 }
2944         }
2945
2946         return 0;
2947 }
2948
2949 int amdgpu_device_set_pg_state(struct amdgpu_device *adev,
2950                                enum amd_powergating_state state)
2951 {
2952         int i, j, r;
2953
2954         if (amdgpu_emu_mode == 1)
2955                 return 0;
2956
2957         for (j = 0; j < adev->num_ip_blocks; j++) {
2958                 i = state == AMD_PG_STATE_GATE ? j : adev->num_ip_blocks - j - 1;
2959                 if (!adev->ip_blocks[i].status.late_initialized)
2960                         continue;
2961                 /* skip PG for GFX, SDMA on S0ix */
2962                 if (adev->in_s0ix &&
2963                     (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_GFX ||
2964                      adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_SDMA))
2965                         continue;
2966                 /* skip CG for VCE/UVD, it's handled specially */
2967                 if (adev->ip_blocks[i].version->type != AMD_IP_BLOCK_TYPE_UVD &&
2968                     adev->ip_blocks[i].version->type != AMD_IP_BLOCK_TYPE_VCE &&
2969                     adev->ip_blocks[i].version->type != AMD_IP_BLOCK_TYPE_VCN &&
2970                     adev->ip_blocks[i].version->type != AMD_IP_BLOCK_TYPE_JPEG &&
2971                     adev->ip_blocks[i].version->funcs->set_powergating_state) {
2972                         /* enable powergating to save power */
2973                         r = adev->ip_blocks[i].version->funcs->set_powergating_state((void *)adev,
2974                                                                                         state);
2975                         if (r) {
2976                                 DRM_ERROR("set_powergating_state(gate) of IP block <%s> failed %d\n",
2977                                           adev->ip_blocks[i].version->funcs->name, r);
2978                                 return r;
2979                         }
2980                 }
2981         }
2982         return 0;
2983 }
2984
2985 static int amdgpu_device_enable_mgpu_fan_boost(void)
2986 {
2987         struct amdgpu_gpu_instance *gpu_ins;
2988         struct amdgpu_device *adev;
2989         int i, ret = 0;
2990
2991         mutex_lock(&mgpu_info.mutex);
2992
2993         /*
2994          * MGPU fan boost feature should be enabled
2995          * only when there are two or more dGPUs in
2996          * the system
2997          */
2998         if (mgpu_info.num_dgpu < 2)
2999                 goto out;
3000
3001         for (i = 0; i < mgpu_info.num_dgpu; i++) {
3002                 gpu_ins = &(mgpu_info.gpu_ins[i]);
3003                 adev = gpu_ins->adev;
3004                 if (!(adev->flags & AMD_IS_APU) &&
3005                     !gpu_ins->mgpu_fan_enabled) {
3006                         ret = amdgpu_dpm_enable_mgpu_fan_boost(adev);
3007                         if (ret)
3008                                 break;
3009
3010                         gpu_ins->mgpu_fan_enabled = 1;
3011                 }
3012         }
3013
3014 out:
3015         mutex_unlock(&mgpu_info.mutex);
3016
3017         return ret;
3018 }
3019
3020 /**
3021  * amdgpu_device_ip_late_init - run late init for hardware IPs
3022  *
3023  * @adev: amdgpu_device pointer
3024  *
3025  * Late initialization pass for hardware IPs.  The list of all the hardware
3026  * IPs that make up the asic is walked and the late_init callbacks are run.
3027  * late_init covers any special initialization that an IP requires
3028  * after all of the have been initialized or something that needs to happen
3029  * late in the init process.
3030  * Returns 0 on success, negative error code on failure.
3031  */
3032 static int amdgpu_device_ip_late_init(struct amdgpu_device *adev)
3033 {
3034         struct amdgpu_gpu_instance *gpu_instance;
3035         int i = 0, r;
3036
3037         for (i = 0; i < adev->num_ip_blocks; i++) {
3038                 if (!adev->ip_blocks[i].status.hw)
3039                         continue;
3040                 if (adev->ip_blocks[i].version->funcs->late_init) {
3041                         r = adev->ip_blocks[i].version->funcs->late_init((void *)adev);
3042                         if (r) {
3043                                 DRM_ERROR("late_init of IP block <%s> failed %d\n",
3044                                           adev->ip_blocks[i].version->funcs->name, r);
3045                                 return r;
3046                         }
3047                 }
3048                 adev->ip_blocks[i].status.late_initialized = true;
3049         }
3050
3051         r = amdgpu_ras_late_init(adev);
3052         if (r) {
3053                 DRM_ERROR("amdgpu_ras_late_init failed %d", r);
3054                 return r;
3055         }
3056
3057         amdgpu_ras_set_error_query_ready(adev, true);
3058
3059         amdgpu_device_set_cg_state(adev, AMD_CG_STATE_GATE);
3060         amdgpu_device_set_pg_state(adev, AMD_PG_STATE_GATE);
3061
3062         amdgpu_device_fill_reset_magic(adev);
3063
3064         r = amdgpu_device_enable_mgpu_fan_boost();
3065         if (r)
3066                 DRM_ERROR("enable mgpu fan boost failed (%d).\n", r);
3067
3068         /* For passthrough configuration on arcturus and aldebaran, enable special handling SBR */
3069         if (amdgpu_passthrough(adev) &&
3070             ((adev->asic_type == CHIP_ARCTURUS && adev->gmc.xgmi.num_physical_nodes > 1) ||
3071              adev->asic_type == CHIP_ALDEBARAN))
3072                 amdgpu_dpm_handle_passthrough_sbr(adev, true);
3073
3074         if (adev->gmc.xgmi.num_physical_nodes > 1) {
3075                 mutex_lock(&mgpu_info.mutex);
3076
3077                 /*
3078                  * Reset device p-state to low as this was booted with high.
3079                  *
3080                  * This should be performed only after all devices from the same
3081                  * hive get initialized.
3082                  *
3083                  * However, it's unknown how many device in the hive in advance.
3084                  * As this is counted one by one during devices initializations.
3085                  *
3086                  * So, we wait for all XGMI interlinked devices initialized.
3087                  * This may bring some delays as those devices may come from
3088                  * different hives. But that should be OK.
3089                  */
3090                 if (mgpu_info.num_dgpu == adev->gmc.xgmi.num_physical_nodes) {
3091                         for (i = 0; i < mgpu_info.num_gpu; i++) {
3092                                 gpu_instance = &(mgpu_info.gpu_ins[i]);
3093                                 if (gpu_instance->adev->flags & AMD_IS_APU)
3094                                         continue;
3095
3096                                 r = amdgpu_xgmi_set_pstate(gpu_instance->adev,
3097                                                 AMDGPU_XGMI_PSTATE_MIN);
3098                                 if (r) {
3099                                         DRM_ERROR("pstate setting failed (%d).\n", r);
3100                                         break;
3101                                 }
3102                         }
3103                 }
3104
3105                 mutex_unlock(&mgpu_info.mutex);
3106         }
3107
3108         return 0;
3109 }
3110
3111 /**
3112  * amdgpu_device_smu_fini_early - smu hw_fini wrapper
3113  *
3114  * @adev: amdgpu_device pointer
3115  *
3116  * For ASICs need to disable SMC first
3117  */
3118 static void amdgpu_device_smu_fini_early(struct amdgpu_device *adev)
3119 {
3120         int i, r;
3121
3122         if (amdgpu_ip_version(adev, GC_HWIP, 0) > IP_VERSION(9, 0, 0))
3123                 return;
3124
3125         for (i = 0; i < adev->num_ip_blocks; i++) {
3126                 if (!adev->ip_blocks[i].status.hw)
3127                         continue;
3128                 if (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_SMC) {
3129                         r = adev->ip_blocks[i].version->funcs->hw_fini((void *)adev);
3130                         /* XXX handle errors */
3131                         if (r) {
3132                                 DRM_DEBUG("hw_fini of IP block <%s> failed %d\n",
3133                                           adev->ip_blocks[i].version->funcs->name, r);
3134                         }
3135                         adev->ip_blocks[i].status.hw = false;
3136                         break;
3137                 }
3138         }
3139 }
3140
3141 static int amdgpu_device_ip_fini_early(struct amdgpu_device *adev)
3142 {
3143         int i, r;
3144
3145         for (i = 0; i < adev->num_ip_blocks; i++) {
3146                 if (!adev->ip_blocks[i].version->funcs->early_fini)
3147                         continue;
3148
3149                 r = adev->ip_blocks[i].version->funcs->early_fini((void *)adev);
3150                 if (r) {
3151                         DRM_DEBUG("early_fini of IP block <%s> failed %d\n",
3152                                   adev->ip_blocks[i].version->funcs->name, r);
3153                 }
3154         }
3155
3156         amdgpu_device_set_pg_state(adev, AMD_PG_STATE_UNGATE);
3157         amdgpu_device_set_cg_state(adev, AMD_CG_STATE_UNGATE);
3158
3159         amdgpu_amdkfd_suspend(adev, false);
3160
3161         /* Workaroud for ASICs need to disable SMC first */
3162         amdgpu_device_smu_fini_early(adev);
3163
3164         for (i = adev->num_ip_blocks - 1; i >= 0; i--) {
3165                 if (!adev->ip_blocks[i].status.hw)
3166                         continue;
3167
3168                 r = adev->ip_blocks[i].version->funcs->hw_fini((void *)adev);
3169                 /* XXX handle errors */
3170                 if (r) {
3171                         DRM_DEBUG("hw_fini of IP block <%s> failed %d\n",
3172                                   adev->ip_blocks[i].version->funcs->name, r);
3173                 }
3174
3175                 adev->ip_blocks[i].status.hw = false;
3176         }
3177
3178         if (amdgpu_sriov_vf(adev)) {
3179                 if (amdgpu_virt_release_full_gpu(adev, false))
3180                         DRM_ERROR("failed to release exclusive mode on fini\n");
3181         }
3182
3183         return 0;
3184 }
3185
3186 /**
3187  * amdgpu_device_ip_fini - run fini for hardware IPs
3188  *
3189  * @adev: amdgpu_device pointer
3190  *
3191  * Main teardown pass for hardware IPs.  The list of all the hardware
3192  * IPs that make up the asic is walked and the hw_fini and sw_fini callbacks
3193  * are run.  hw_fini tears down the hardware associated with each IP
3194  * and sw_fini tears down any software state associated with each IP.
3195  * Returns 0 on success, negative error code on failure.
3196  */
3197 static int amdgpu_device_ip_fini(struct amdgpu_device *adev)
3198 {
3199         int i, r;
3200
3201         if (amdgpu_sriov_vf(adev) && adev->virt.ras_init_done)
3202                 amdgpu_virt_release_ras_err_handler_data(adev);
3203
3204         if (adev->gmc.xgmi.num_physical_nodes > 1)
3205                 amdgpu_xgmi_remove_device(adev);
3206
3207         amdgpu_amdkfd_device_fini_sw(adev);
3208
3209         for (i = adev->num_ip_blocks - 1; i >= 0; i--) {
3210                 if (!adev->ip_blocks[i].status.sw)
3211                         continue;
3212
3213                 if (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_GMC) {
3214                         amdgpu_ucode_free_bo(adev);
3215                         amdgpu_free_static_csa(&adev->virt.csa_obj);
3216                         amdgpu_device_wb_fini(adev);
3217                         amdgpu_device_mem_scratch_fini(adev);
3218                         amdgpu_ib_pool_fini(adev);
3219                         amdgpu_seq64_fini(adev);
3220                 }
3221
3222                 r = adev->ip_blocks[i].version->funcs->sw_fini((void *)adev);
3223                 /* XXX handle errors */
3224                 if (r) {
3225                         DRM_DEBUG("sw_fini of IP block <%s> failed %d\n",
3226                                   adev->ip_blocks[i].version->funcs->name, r);
3227                 }
3228                 adev->ip_blocks[i].status.sw = false;
3229                 adev->ip_blocks[i].status.valid = false;
3230         }
3231
3232         for (i = adev->num_ip_blocks - 1; i >= 0; i--) {
3233                 if (!adev->ip_blocks[i].status.late_initialized)
3234                         continue;
3235                 if (adev->ip_blocks[i].version->funcs->late_fini)
3236                         adev->ip_blocks[i].version->funcs->late_fini((void *)adev);
3237                 adev->ip_blocks[i].status.late_initialized = false;
3238         }
3239
3240         amdgpu_ras_fini(adev);
3241
3242         return 0;
3243 }
3244
3245 /**
3246  * amdgpu_device_delayed_init_work_handler - work handler for IB tests
3247  *
3248  * @work: work_struct.
3249  */
3250 static void amdgpu_device_delayed_init_work_handler(struct work_struct *work)
3251 {
3252         struct amdgpu_device *adev =
3253                 container_of(work, struct amdgpu_device, delayed_init_work.work);
3254         int r;
3255
3256         r = amdgpu_ib_ring_tests(adev);
3257         if (r)
3258                 DRM_ERROR("ib ring test failed (%d).\n", r);
3259 }
3260
3261 static void amdgpu_device_delay_enable_gfx_off(struct work_struct *work)
3262 {
3263         struct amdgpu_device *adev =
3264                 container_of(work, struct amdgpu_device, gfx.gfx_off_delay_work.work);
3265
3266         WARN_ON_ONCE(adev->gfx.gfx_off_state);
3267         WARN_ON_ONCE(adev->gfx.gfx_off_req_count);
3268
3269         if (!amdgpu_dpm_set_powergating_by_smu(adev, AMD_IP_BLOCK_TYPE_GFX, true))
3270                 adev->gfx.gfx_off_state = true;
3271 }
3272
3273 /**
3274  * amdgpu_device_ip_suspend_phase1 - run suspend for hardware IPs (phase 1)
3275  *
3276  * @adev: amdgpu_device pointer
3277  *
3278  * Main suspend function for hardware IPs.  The list of all the hardware
3279  * IPs that make up the asic is walked, clockgating is disabled and the
3280  * suspend callbacks are run.  suspend puts the hardware and software state
3281  * in each IP into a state suitable for suspend.
3282  * Returns 0 on success, negative error code on failure.
3283  */
3284 static int amdgpu_device_ip_suspend_phase1(struct amdgpu_device *adev)
3285 {
3286         int i, r;
3287
3288         amdgpu_device_set_pg_state(adev, AMD_PG_STATE_UNGATE);
3289         amdgpu_device_set_cg_state(adev, AMD_CG_STATE_UNGATE);
3290
3291         /*
3292          * Per PMFW team's suggestion, driver needs to handle gfxoff
3293          * and df cstate features disablement for gpu reset(e.g. Mode1Reset)
3294          * scenario. Add the missing df cstate disablement here.
3295          */
3296         if (amdgpu_dpm_set_df_cstate(adev, DF_CSTATE_DISALLOW))
3297                 dev_warn(adev->dev, "Failed to disallow df cstate");
3298
3299         for (i = adev->num_ip_blocks - 1; i >= 0; i--) {
3300                 if (!adev->ip_blocks[i].status.valid)
3301                         continue;
3302
3303                 /* displays are handled separately */
3304                 if (adev->ip_blocks[i].version->type != AMD_IP_BLOCK_TYPE_DCE)
3305                         continue;
3306
3307                 /* XXX handle errors */
3308                 r = adev->ip_blocks[i].version->funcs->suspend(adev);
3309                 /* XXX handle errors */
3310                 if (r) {
3311                         DRM_ERROR("suspend of IP block <%s> failed %d\n",
3312                                   adev->ip_blocks[i].version->funcs->name, r);
3313                         return r;
3314                 }
3315
3316                 adev->ip_blocks[i].status.hw = false;
3317         }
3318
3319         return 0;
3320 }
3321
3322 /**
3323  * amdgpu_device_ip_suspend_phase2 - run suspend for hardware IPs (phase 2)
3324  *
3325  * @adev: amdgpu_device pointer
3326  *
3327  * Main suspend function for hardware IPs.  The list of all the hardware
3328  * IPs that make up the asic is walked, clockgating is disabled and the
3329  * suspend callbacks are run.  suspend puts the hardware and software state
3330  * in each IP into a state suitable for suspend.
3331  * Returns 0 on success, negative error code on failure.
3332  */
3333 static int amdgpu_device_ip_suspend_phase2(struct amdgpu_device *adev)
3334 {
3335         int i, r;
3336
3337         if (adev->in_s0ix)
3338                 amdgpu_dpm_gfx_state_change(adev, sGpuChangeState_D3Entry);
3339
3340         for (i = adev->num_ip_blocks - 1; i >= 0; i--) {
3341                 if (!adev->ip_blocks[i].status.valid)
3342                         continue;
3343                 /* displays are handled in phase1 */
3344                 if (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_DCE)
3345                         continue;
3346                 /* PSP lost connection when err_event_athub occurs */
3347                 if (amdgpu_ras_intr_triggered() &&
3348                     adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_PSP) {
3349                         adev->ip_blocks[i].status.hw = false;
3350                         continue;
3351                 }
3352
3353                 /* skip unnecessary suspend if we do not initialize them yet */
3354                 if (adev->gmc.xgmi.pending_reset &&
3355                     !(adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_GMC ||
3356                       adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_SMC ||
3357                       adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_COMMON ||
3358                       adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_IH)) {
3359                         adev->ip_blocks[i].status.hw = false;
3360                         continue;
3361                 }
3362
3363                 /* skip suspend of gfx/mes and psp for S0ix
3364                  * gfx is in gfxoff state, so on resume it will exit gfxoff just
3365                  * like at runtime. PSP is also part of the always on hardware
3366                  * so no need to suspend it.
3367                  */
3368                 if (adev->in_s0ix &&
3369                     (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_PSP ||
3370                      adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_GFX ||
3371                      adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_MES))
3372                         continue;
3373
3374                 /* SDMA 5.x+ is part of GFX power domain so it's covered by GFXOFF */
3375                 if (adev->in_s0ix &&
3376                     (amdgpu_ip_version(adev, SDMA0_HWIP, 0) >=
3377                      IP_VERSION(5, 0, 0)) &&
3378                     (adev->ip_blocks[i].version->type ==
3379                      AMD_IP_BLOCK_TYPE_SDMA))
3380                         continue;
3381
3382                 /* Once swPSP provides the IMU, RLC FW binaries to TOS during cold-boot.
3383                  * These are in TMR, hence are expected to be reused by PSP-TOS to reload
3384                  * from this location and RLC Autoload automatically also gets loaded
3385                  * from here based on PMFW -> PSP message during re-init sequence.
3386                  * Therefore, the psp suspend & resume should be skipped to avoid destroy
3387                  * the TMR and reload FWs again for IMU enabled APU ASICs.
3388                  */
3389                 if (amdgpu_in_reset(adev) &&
3390                     (adev->flags & AMD_IS_APU) && adev->gfx.imu.funcs &&
3391                     adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_PSP)
3392                         continue;
3393
3394                 /* XXX handle errors */
3395                 r = adev->ip_blocks[i].version->funcs->suspend(adev);
3396                 /* XXX handle errors */
3397                 if (r) {
3398                         DRM_ERROR("suspend of IP block <%s> failed %d\n",
3399                                   adev->ip_blocks[i].version->funcs->name, r);
3400                 }
3401                 adev->ip_blocks[i].status.hw = false;
3402                 /* handle putting the SMC in the appropriate state */
3403                 if (!amdgpu_sriov_vf(adev)) {
3404                         if (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_SMC) {
3405                                 r = amdgpu_dpm_set_mp1_state(adev, adev->mp1_state);
3406                                 if (r) {
3407                                         DRM_ERROR("SMC failed to set mp1 state %d, %d\n",
3408                                                         adev->mp1_state, r);
3409                                         return r;
3410                                 }
3411                         }
3412                 }
3413         }
3414
3415         return 0;
3416 }
3417
3418 /**
3419  * amdgpu_device_ip_suspend - run suspend for hardware IPs
3420  *
3421  * @adev: amdgpu_device pointer
3422  *
3423  * Main suspend function for hardware IPs.  The list of all the hardware
3424  * IPs that make up the asic is walked, clockgating is disabled and the
3425  * suspend callbacks are run.  suspend puts the hardware and software state
3426  * in each IP into a state suitable for suspend.
3427  * Returns 0 on success, negative error code on failure.
3428  */
3429 int amdgpu_device_ip_suspend(struct amdgpu_device *adev)
3430 {
3431         int r;
3432
3433         if (amdgpu_sriov_vf(adev)) {
3434                 amdgpu_virt_fini_data_exchange(adev);
3435                 amdgpu_virt_request_full_gpu(adev, false);
3436         }
3437
3438         amdgpu_ttm_set_buffer_funcs_status(adev, false);
3439
3440         r = amdgpu_device_ip_suspend_phase1(adev);
3441         if (r)
3442                 return r;
3443         r = amdgpu_device_ip_suspend_phase2(adev);
3444
3445         if (amdgpu_sriov_vf(adev))
3446                 amdgpu_virt_release_full_gpu(adev, false);
3447
3448         return r;
3449 }
3450
3451 static int amdgpu_device_ip_reinit_early_sriov(struct amdgpu_device *adev)
3452 {
3453         int i, r;
3454
3455         static enum amd_ip_block_type ip_order[] = {
3456                 AMD_IP_BLOCK_TYPE_COMMON,
3457                 AMD_IP_BLOCK_TYPE_GMC,
3458                 AMD_IP_BLOCK_TYPE_PSP,
3459                 AMD_IP_BLOCK_TYPE_IH,
3460         };
3461
3462         for (i = 0; i < adev->num_ip_blocks; i++) {
3463                 int j;
3464                 struct amdgpu_ip_block *block;
3465
3466                 block = &adev->ip_blocks[i];
3467                 block->status.hw = false;
3468
3469                 for (j = 0; j < ARRAY_SIZE(ip_order); j++) {
3470
3471                         if (block->version->type != ip_order[j] ||
3472                                 !block->status.valid)
3473                                 continue;
3474
3475                         r = block->version->funcs->hw_init(adev);
3476                         DRM_INFO("RE-INIT-early: %s %s\n", block->version->funcs->name, r?"failed":"succeeded");
3477                         if (r)
3478                                 return r;
3479                         block->status.hw = true;
3480                 }
3481         }
3482
3483         return 0;
3484 }
3485
3486 static int amdgpu_device_ip_reinit_late_sriov(struct amdgpu_device *adev)
3487 {
3488         int i, r;
3489
3490         static enum amd_ip_block_type ip_order[] = {
3491                 AMD_IP_BLOCK_TYPE_SMC,
3492                 AMD_IP_BLOCK_TYPE_DCE,
3493                 AMD_IP_BLOCK_TYPE_GFX,
3494                 AMD_IP_BLOCK_TYPE_SDMA,
3495                 AMD_IP_BLOCK_TYPE_MES,
3496                 AMD_IP_BLOCK_TYPE_UVD,
3497                 AMD_IP_BLOCK_TYPE_VCE,
3498                 AMD_IP_BLOCK_TYPE_VCN,
3499                 AMD_IP_BLOCK_TYPE_JPEG
3500         };
3501
3502         for (i = 0; i < ARRAY_SIZE(ip_order); i++) {
3503                 int j;
3504                 struct amdgpu_ip_block *block;
3505
3506                 for (j = 0; j < adev->num_ip_blocks; j++) {
3507                         block = &adev->ip_blocks[j];
3508
3509                         if (block->version->type != ip_order[i] ||
3510                                 !block->status.valid ||
3511                                 block->status.hw)
3512                                 continue;
3513
3514                         if (block->version->type == AMD_IP_BLOCK_TYPE_SMC)
3515                                 r = block->version->funcs->resume(adev);
3516                         else
3517                                 r = block->version->funcs->hw_init(adev);
3518
3519                         DRM_INFO("RE-INIT-late: %s %s\n", block->version->funcs->name, r?"failed":"succeeded");
3520                         if (r)
3521                                 return r;
3522                         block->status.hw = true;
3523                 }
3524         }
3525
3526         return 0;
3527 }
3528
3529 /**
3530  * amdgpu_device_ip_resume_phase1 - run resume for hardware IPs
3531  *
3532  * @adev: amdgpu_device pointer
3533  *
3534  * First resume function for hardware IPs.  The list of all the hardware
3535  * IPs that make up the asic is walked and the resume callbacks are run for
3536  * COMMON, GMC, and IH.  resume puts the hardware into a functional state
3537  * after a suspend and updates the software state as necessary.  This
3538  * function is also used for restoring the GPU after a GPU reset.
3539  * Returns 0 on success, negative error code on failure.
3540  */
3541 static int amdgpu_device_ip_resume_phase1(struct amdgpu_device *adev)
3542 {
3543         int i, r;
3544
3545         for (i = 0; i < adev->num_ip_blocks; i++) {
3546                 if (!adev->ip_blocks[i].status.valid || adev->ip_blocks[i].status.hw)
3547                         continue;
3548                 if (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_COMMON ||
3549                     adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_GMC ||
3550                     adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_IH ||
3551                     (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_PSP && amdgpu_sriov_vf(adev))) {
3552
3553                         r = adev->ip_blocks[i].version->funcs->resume(adev);
3554                         if (r) {
3555                                 DRM_ERROR("resume of IP block <%s> failed %d\n",
3556                                           adev->ip_blocks[i].version->funcs->name, r);
3557                                 return r;
3558                         }
3559                         adev->ip_blocks[i].status.hw = true;
3560                 }
3561         }
3562
3563         return 0;
3564 }
3565
3566 /**
3567  * amdgpu_device_ip_resume_phase2 - run resume for hardware IPs
3568  *
3569  * @adev: amdgpu_device pointer
3570  *
3571  * First resume function for hardware IPs.  The list of all the hardware
3572  * IPs that make up the asic is walked and the resume callbacks are run for
3573  * all blocks except COMMON, GMC, and IH.  resume puts the hardware into a
3574  * functional state after a suspend and updates the software state as
3575  * necessary.  This function is also used for restoring the GPU after a GPU
3576  * reset.
3577  * Returns 0 on success, negative error code on failure.
3578  */
3579 static int amdgpu_device_ip_resume_phase2(struct amdgpu_device *adev)
3580 {
3581         int i, r;
3582
3583         for (i = 0; i < adev->num_ip_blocks; i++) {
3584                 if (!adev->ip_blocks[i].status.valid || adev->ip_blocks[i].status.hw)
3585                         continue;
3586                 if (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_COMMON ||
3587                     adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_GMC ||
3588                     adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_IH ||
3589                     adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_PSP)
3590                         continue;
3591                 r = adev->ip_blocks[i].version->funcs->resume(adev);
3592                 if (r) {
3593                         DRM_ERROR("resume of IP block <%s> failed %d\n",
3594                                   adev->ip_blocks[i].version->funcs->name, r);
3595                         return r;
3596                 }
3597                 adev->ip_blocks[i].status.hw = true;
3598         }
3599
3600         return 0;
3601 }
3602
3603 /**
3604  * amdgpu_device_ip_resume - run resume for hardware IPs
3605  *
3606  * @adev: amdgpu_device pointer
3607  *
3608  * Main resume function for hardware IPs.  The hardware IPs
3609  * are split into two resume functions because they are
3610  * also used in recovering from a GPU reset and some additional
3611  * steps need to be take between them.  In this case (S3/S4) they are
3612  * run sequentially.
3613  * Returns 0 on success, negative error code on failure.
3614  */
3615 static int amdgpu_device_ip_resume(struct amdgpu_device *adev)
3616 {
3617         int r;
3618
3619         r = amdgpu_device_ip_resume_phase1(adev);
3620         if (r)
3621                 return r;
3622
3623         r = amdgpu_device_fw_loading(adev);
3624         if (r)
3625                 return r;
3626
3627         r = amdgpu_device_ip_resume_phase2(adev);
3628
3629         if (adev->mman.buffer_funcs_ring->sched.ready)
3630                 amdgpu_ttm_set_buffer_funcs_status(adev, true);
3631
3632         return r;
3633 }
3634
3635 /**
3636  * amdgpu_device_detect_sriov_bios - determine if the board supports SR-IOV
3637  *
3638  * @adev: amdgpu_device pointer
3639  *
3640  * Query the VBIOS data tables to determine if the board supports SR-IOV.
3641  */
3642 static void amdgpu_device_detect_sriov_bios(struct amdgpu_device *adev)
3643 {
3644         if (amdgpu_sriov_vf(adev)) {
3645                 if (adev->is_atom_fw) {
3646                         if (amdgpu_atomfirmware_gpu_virtualization_supported(adev))
3647                                 adev->virt.caps |= AMDGPU_SRIOV_CAPS_SRIOV_VBIOS;
3648                 } else {
3649                         if (amdgpu_atombios_has_gpu_virtualization_table(adev))
3650                                 adev->virt.caps |= AMDGPU_SRIOV_CAPS_SRIOV_VBIOS;
3651                 }
3652
3653                 if (!(adev->virt.caps & AMDGPU_SRIOV_CAPS_SRIOV_VBIOS))
3654                         amdgpu_vf_error_put(adev, AMDGIM_ERROR_VF_NO_VBIOS, 0, 0);
3655         }
3656 }
3657
3658 /**
3659  * amdgpu_device_asic_has_dc_support - determine if DC supports the asic
3660  *
3661  * @asic_type: AMD asic type
3662  *
3663  * Check if there is DC (new modesetting infrastructre) support for an asic.
3664  * returns true if DC has support, false if not.
3665  */
3666 bool amdgpu_device_asic_has_dc_support(enum amd_asic_type asic_type)
3667 {
3668         switch (asic_type) {
3669 #ifdef CONFIG_DRM_AMDGPU_SI
3670         case CHIP_HAINAN:
3671 #endif
3672         case CHIP_TOPAZ:
3673                 /* chips with no display hardware */
3674                 return false;
3675 #if defined(CONFIG_DRM_AMD_DC)
3676         case CHIP_TAHITI:
3677         case CHIP_PITCAIRN:
3678         case CHIP_VERDE:
3679         case CHIP_OLAND:
3680                 /*
3681                  * We have systems in the wild with these ASICs that require
3682                  * LVDS and VGA support which is not supported with DC.
3683                  *
3684                  * Fallback to the non-DC driver here by default so as not to
3685                  * cause regressions.
3686                  */
3687 #if defined(CONFIG_DRM_AMD_DC_SI)
3688                 return amdgpu_dc > 0;
3689 #else
3690                 return false;
3691 #endif
3692         case CHIP_BONAIRE:
3693         case CHIP_KAVERI:
3694         case CHIP_KABINI:
3695         case CHIP_MULLINS:
3696                 /*
3697                  * We have systems in the wild with these ASICs that require
3698                  * VGA support which is not supported with DC.
3699                  *
3700                  * Fallback to the non-DC driver here by default so as not to
3701                  * cause regressions.
3702                  */
3703                 return amdgpu_dc > 0;
3704         default:
3705                 return amdgpu_dc != 0;
3706 #else
3707         default:
3708                 if (amdgpu_dc > 0)
3709                         DRM_INFO_ONCE("Display Core has been requested via kernel parameter but isn't supported by ASIC, ignoring\n");
3710                 return false;
3711 #endif
3712         }
3713 }
3714
3715 /**
3716  * amdgpu_device_has_dc_support - check if dc is supported
3717  *
3718  * @adev: amdgpu_device pointer
3719  *
3720  * Returns true for supported, false for not supported
3721  */
3722 bool amdgpu_device_has_dc_support(struct amdgpu_device *adev)
3723 {
3724         if (adev->enable_virtual_display ||
3725             (adev->harvest_ip_mask & AMD_HARVEST_IP_DMU_MASK))
3726                 return false;
3727
3728         return amdgpu_device_asic_has_dc_support(adev->asic_type);
3729 }
3730
3731 static void amdgpu_device_xgmi_reset_func(struct work_struct *__work)
3732 {
3733         struct amdgpu_device *adev =
3734                 container_of(__work, struct amdgpu_device, xgmi_reset_work);
3735         struct amdgpu_hive_info *hive = amdgpu_get_xgmi_hive(adev);
3736
3737         /* It's a bug to not have a hive within this function */
3738         if (WARN_ON(!hive))
3739                 return;
3740
3741         /*
3742          * Use task barrier to synchronize all xgmi reset works across the
3743          * hive. task_barrier_enter and task_barrier_exit will block
3744          * until all the threads running the xgmi reset works reach
3745          * those points. task_barrier_full will do both blocks.
3746          */
3747         if (amdgpu_asic_reset_method(adev) == AMD_RESET_METHOD_BACO) {
3748
3749                 task_barrier_enter(&hive->tb);
3750                 adev->asic_reset_res = amdgpu_device_baco_enter(adev_to_drm(adev));
3751
3752                 if (adev->asic_reset_res)
3753                         goto fail;
3754
3755                 task_barrier_exit(&hive->tb);
3756                 adev->asic_reset_res = amdgpu_device_baco_exit(adev_to_drm(adev));
3757
3758                 if (adev->asic_reset_res)
3759                         goto fail;
3760
3761                 amdgpu_ras_reset_error_count(adev, AMDGPU_RAS_BLOCK__MMHUB);
3762         } else {
3763
3764                 task_barrier_full(&hive->tb);
3765                 adev->asic_reset_res =  amdgpu_asic_reset(adev);
3766         }
3767
3768 fail:
3769         if (adev->asic_reset_res)
3770                 DRM_WARN("ASIC reset failed with error, %d for drm dev, %s",
3771                          adev->asic_reset_res, adev_to_drm(adev)->unique);
3772         amdgpu_put_xgmi_hive(hive);
3773 }
3774
3775 static int amdgpu_device_get_job_timeout_settings(struct amdgpu_device *adev)
3776 {
3777         char *input = amdgpu_lockup_timeout;
3778         char *timeout_setting = NULL;
3779         int index = 0;
3780         long timeout;
3781         int ret = 0;
3782
3783         /*
3784          * By default timeout for non compute jobs is 10000
3785          * and 60000 for compute jobs.
3786          * In SR-IOV or passthrough mode, timeout for compute
3787          * jobs are 60000 by default.
3788          */
3789         adev->gfx_timeout = msecs_to_jiffies(10000);
3790         adev->sdma_timeout = adev->video_timeout = adev->gfx_timeout;
3791         if (amdgpu_sriov_vf(adev))
3792                 adev->compute_timeout = amdgpu_sriov_is_pp_one_vf(adev) ?
3793                                         msecs_to_jiffies(60000) : msecs_to_jiffies(10000);
3794         else
3795                 adev->compute_timeout =  msecs_to_jiffies(60000);
3796
3797         if (strnlen(input, AMDGPU_MAX_TIMEOUT_PARAM_LENGTH)) {
3798                 while ((timeout_setting = strsep(&input, ",")) &&
3799                                 strnlen(timeout_setting, AMDGPU_MAX_TIMEOUT_PARAM_LENGTH)) {
3800                         ret = kstrtol(timeout_setting, 0, &timeout);
3801                         if (ret)
3802                                 return ret;
3803
3804                         if (timeout == 0) {
3805                                 index++;
3806                                 continue;
3807                         } else if (timeout < 0) {
3808                                 timeout = MAX_SCHEDULE_TIMEOUT;
3809                                 dev_warn(adev->dev, "lockup timeout disabled");
3810                                 add_taint(TAINT_SOFTLOCKUP, LOCKDEP_STILL_OK);
3811                         } else {
3812                                 timeout = msecs_to_jiffies(timeout);
3813                         }
3814
3815                         switch (index++) {
3816                         case 0:
3817                                 adev->gfx_timeout = timeout;
3818                                 break;
3819                         case 1:
3820                                 adev->compute_timeout = timeout;
3821                                 break;
3822                         case 2:
3823                                 adev->sdma_timeout = timeout;
3824                                 break;
3825                         case 3:
3826                                 adev->video_timeout = timeout;
3827                                 break;
3828                         default:
3829                                 break;
3830                         }
3831                 }
3832                 /*
3833                  * There is only one value specified and
3834                  * it should apply to all non-compute jobs.
3835                  */
3836                 if (index == 1) {
3837                         adev->sdma_timeout = adev->video_timeout = adev->gfx_timeout;
3838                         if (amdgpu_sriov_vf(adev) || amdgpu_passthrough(adev))
3839                                 adev->compute_timeout = adev->gfx_timeout;
3840                 }
3841         }
3842
3843         return ret;
3844 }
3845
3846 /**
3847  * amdgpu_device_check_iommu_direct_map - check if RAM direct mapped to GPU
3848  *
3849  * @adev: amdgpu_device pointer
3850  *
3851  * RAM direct mapped to GPU if IOMMU is not enabled or is pass through mode
3852  */
3853 static void amdgpu_device_check_iommu_direct_map(struct amdgpu_device *adev)
3854 {
3855         struct iommu_domain *domain;
3856
3857         domain = iommu_get_domain_for_dev(adev->dev);
3858         if (!domain || domain->type == IOMMU_DOMAIN_IDENTITY)
3859                 adev->ram_is_direct_mapped = true;
3860 }
3861
3862 static const struct attribute *amdgpu_dev_attributes[] = {
3863         &dev_attr_pcie_replay_count.attr,
3864         NULL
3865 };
3866
3867 static void amdgpu_device_set_mcbp(struct amdgpu_device *adev)
3868 {
3869         if (amdgpu_mcbp == 1)
3870                 adev->gfx.mcbp = true;
3871         else if (amdgpu_mcbp == 0)
3872                 adev->gfx.mcbp = false;
3873
3874         if (amdgpu_sriov_vf(adev))
3875                 adev->gfx.mcbp = true;
3876
3877         if (adev->gfx.mcbp)
3878                 DRM_INFO("MCBP is enabled\n");
3879 }
3880
3881 /**
3882  * amdgpu_device_init - initialize the driver
3883  *
3884  * @adev: amdgpu_device pointer
3885  * @flags: driver flags
3886  *
3887  * Initializes the driver info and hw (all asics).
3888  * Returns 0 for success or an error on failure.
3889  * Called at driver startup.
3890  */
3891 int amdgpu_device_init(struct amdgpu_device *adev,
3892                        uint32_t flags)
3893 {
3894         struct drm_device *ddev = adev_to_drm(adev);
3895         struct pci_dev *pdev = adev->pdev;
3896         int r, i;
3897         bool px = false;
3898         u32 max_MBps;
3899         int tmp;
3900
3901         adev->shutdown = false;
3902         adev->flags = flags;
3903
3904         if (amdgpu_force_asic_type >= 0 && amdgpu_force_asic_type < CHIP_LAST)
3905                 adev->asic_type = amdgpu_force_asic_type;
3906         else
3907                 adev->asic_type = flags & AMD_ASIC_MASK;
3908
3909         adev->usec_timeout = AMDGPU_MAX_USEC_TIMEOUT;
3910         if (amdgpu_emu_mode == 1)
3911                 adev->usec_timeout *= 10;
3912         adev->gmc.gart_size = 512 * 1024 * 1024;
3913         adev->accel_working = false;
3914         adev->num_rings = 0;
3915         RCU_INIT_POINTER(adev->gang_submit, dma_fence_get_stub());
3916         adev->mman.buffer_funcs = NULL;
3917         adev->mman.buffer_funcs_ring = NULL;
3918         adev->vm_manager.vm_pte_funcs = NULL;
3919         adev->vm_manager.vm_pte_num_scheds = 0;
3920         adev->gmc.gmc_funcs = NULL;
3921         adev->harvest_ip_mask = 0x0;
3922         adev->fence_context = dma_fence_context_alloc(AMDGPU_MAX_RINGS);
3923         bitmap_zero(adev->gfx.pipe_reserve_bitmap, AMDGPU_MAX_COMPUTE_QUEUES);
3924
3925         adev->smc_rreg = &amdgpu_invalid_rreg;
3926         adev->smc_wreg = &amdgpu_invalid_wreg;
3927         adev->pcie_rreg = &amdgpu_invalid_rreg;
3928         adev->pcie_wreg = &amdgpu_invalid_wreg;
3929         adev->pcie_rreg_ext = &amdgpu_invalid_rreg_ext;
3930         adev->pcie_wreg_ext = &amdgpu_invalid_wreg_ext;
3931         adev->pciep_rreg = &amdgpu_invalid_rreg;
3932         adev->pciep_wreg = &amdgpu_invalid_wreg;
3933         adev->pcie_rreg64 = &amdgpu_invalid_rreg64;
3934         adev->pcie_wreg64 = &amdgpu_invalid_wreg64;
3935         adev->pcie_rreg64_ext = &amdgpu_invalid_rreg64_ext;
3936         adev->pcie_wreg64_ext = &amdgpu_invalid_wreg64_ext;
3937         adev->uvd_ctx_rreg = &amdgpu_invalid_rreg;
3938         adev->uvd_ctx_wreg = &amdgpu_invalid_wreg;
3939         adev->didt_rreg = &amdgpu_invalid_rreg;
3940         adev->didt_wreg = &amdgpu_invalid_wreg;
3941         adev->gc_cac_rreg = &amdgpu_invalid_rreg;
3942         adev->gc_cac_wreg = &amdgpu_invalid_wreg;
3943         adev->audio_endpt_rreg = &amdgpu_block_invalid_rreg;
3944         adev->audio_endpt_wreg = &amdgpu_block_invalid_wreg;
3945
3946         DRM_INFO("initializing kernel modesetting (%s 0x%04X:0x%04X 0x%04X:0x%04X 0x%02X).\n",
3947                  amdgpu_asic_name[adev->asic_type], pdev->vendor, pdev->device,
3948                  pdev->subsystem_vendor, pdev->subsystem_device, pdev->revision);
3949
3950         /* mutex initialization are all done here so we
3951          * can recall function without having locking issues
3952          */
3953         mutex_init(&adev->firmware.mutex);
3954         mutex_init(&adev->pm.mutex);
3955         mutex_init(&adev->gfx.gpu_clock_mutex);
3956         mutex_init(&adev->srbm_mutex);
3957         mutex_init(&adev->gfx.pipe_reserve_mutex);
3958         mutex_init(&adev->gfx.gfx_off_mutex);
3959         mutex_init(&adev->gfx.partition_mutex);
3960         mutex_init(&adev->grbm_idx_mutex);
3961         mutex_init(&adev->mn_lock);
3962         mutex_init(&adev->virt.vf_errors.lock);
3963         hash_init(adev->mn_hash);
3964         mutex_init(&adev->psp.mutex);
3965         mutex_init(&adev->notifier_lock);
3966         mutex_init(&adev->pm.stable_pstate_ctx_lock);
3967         mutex_init(&adev->benchmark_mutex);
3968
3969         amdgpu_device_init_apu_flags(adev);
3970
3971         r = amdgpu_device_check_arguments(adev);
3972         if (r)
3973                 return r;
3974
3975         spin_lock_init(&adev->mmio_idx_lock);
3976         spin_lock_init(&adev->smc_idx_lock);
3977         spin_lock_init(&adev->pcie_idx_lock);
3978         spin_lock_init(&adev->uvd_ctx_idx_lock);
3979         spin_lock_init(&adev->didt_idx_lock);
3980         spin_lock_init(&adev->gc_cac_idx_lock);
3981         spin_lock_init(&adev->se_cac_idx_lock);
3982         spin_lock_init(&adev->audio_endpt_idx_lock);
3983         spin_lock_init(&adev->mm_stats.lock);
3984
3985         INIT_LIST_HEAD(&adev->shadow_list);
3986         mutex_init(&adev->shadow_list_lock);
3987
3988         INIT_LIST_HEAD(&adev->reset_list);
3989
3990         INIT_LIST_HEAD(&adev->ras_list);
3991
3992         INIT_LIST_HEAD(&adev->pm.od_kobj_list);
3993
3994         INIT_DELAYED_WORK(&adev->delayed_init_work,
3995                           amdgpu_device_delayed_init_work_handler);
3996         INIT_DELAYED_WORK(&adev->gfx.gfx_off_delay_work,
3997                           amdgpu_device_delay_enable_gfx_off);
3998
3999         INIT_WORK(&adev->xgmi_reset_work, amdgpu_device_xgmi_reset_func);
4000
4001         adev->gfx.gfx_off_req_count = 1;
4002         adev->gfx.gfx_off_residency = 0;
4003         adev->gfx.gfx_off_entrycount = 0;
4004         adev->pm.ac_power = power_supply_is_system_supplied() > 0;
4005
4006         atomic_set(&adev->throttling_logging_enabled, 1);
4007         /*
4008          * If throttling continues, logging will be performed every minute
4009          * to avoid log flooding. "-1" is subtracted since the thermal
4010          * throttling interrupt comes every second. Thus, the total logging
4011          * interval is 59 seconds(retelimited printk interval) + 1(waiting
4012          * for throttling interrupt) = 60 seconds.
4013          */
4014         ratelimit_state_init(&adev->throttling_logging_rs, (60 - 1) * HZ, 1);
4015         ratelimit_set_flags(&adev->throttling_logging_rs, RATELIMIT_MSG_ON_RELEASE);
4016
4017         /* Registers mapping */
4018         /* TODO: block userspace mapping of io register */
4019         if (adev->asic_type >= CHIP_BONAIRE) {
4020                 adev->rmmio_base = pci_resource_start(adev->pdev, 5);
4021                 adev->rmmio_size = pci_resource_len(adev->pdev, 5);
4022         } else {
4023                 adev->rmmio_base = pci_resource_start(adev->pdev, 2);
4024                 adev->rmmio_size = pci_resource_len(adev->pdev, 2);
4025         }
4026
4027         for (i = 0; i < AMD_IP_BLOCK_TYPE_NUM; i++)
4028                 atomic_set(&adev->pm.pwr_state[i], POWER_STATE_UNKNOWN);
4029
4030         adev->rmmio = ioremap(adev->rmmio_base, adev->rmmio_size);
4031         if (!adev->rmmio)
4032                 return -ENOMEM;
4033
4034         DRM_INFO("register mmio base: 0x%08X\n", (uint32_t)adev->rmmio_base);
4035         DRM_INFO("register mmio size: %u\n", (unsigned int)adev->rmmio_size);
4036
4037         /*
4038          * Reset domain needs to be present early, before XGMI hive discovered
4039          * (if any) and intitialized to use reset sem and in_gpu reset flag
4040          * early on during init and before calling to RREG32.
4041          */
4042         adev->reset_domain = amdgpu_reset_create_reset_domain(SINGLE_DEVICE, "amdgpu-reset-dev");
4043         if (!adev->reset_domain)
4044                 return -ENOMEM;
4045
4046         /* detect hw virtualization here */
4047         amdgpu_detect_virtualization(adev);
4048
4049         amdgpu_device_get_pcie_info(adev);
4050
4051         r = amdgpu_device_get_job_timeout_settings(adev);
4052         if (r) {
4053                 dev_err(adev->dev, "invalid lockup_timeout parameter syntax\n");
4054                 return r;
4055         }
4056
4057         amdgpu_device_set_mcbp(adev);
4058
4059         /* early init functions */
4060         r = amdgpu_device_ip_early_init(adev);
4061         if (r)
4062                 return r;
4063
4064         /* Get rid of things like offb */
4065         r = drm_aperture_remove_conflicting_pci_framebuffers(adev->pdev, &amdgpu_kms_driver);
4066         if (r)
4067                 return r;
4068
4069         /* Enable TMZ based on IP_VERSION */
4070         amdgpu_gmc_tmz_set(adev);
4071
4072         amdgpu_gmc_noretry_set(adev);
4073         /* Need to get xgmi info early to decide the reset behavior*/
4074         if (adev->gmc.xgmi.supported) {
4075                 r = adev->gfxhub.funcs->get_xgmi_info(adev);
4076                 if (r)
4077                         return r;
4078         }
4079
4080         /* enable PCIE atomic ops */
4081         if (amdgpu_sriov_vf(adev)) {
4082                 if (adev->virt.fw_reserve.p_pf2vf)
4083                         adev->have_atomics_support = ((struct amd_sriov_msg_pf2vf_info *)
4084                                                       adev->virt.fw_reserve.p_pf2vf)->pcie_atomic_ops_support_flags ==
4085                                 (PCI_EXP_DEVCAP2_ATOMIC_COMP32 | PCI_EXP_DEVCAP2_ATOMIC_COMP64);
4086         /* APUs w/ gfx9 onwards doesn't reply on PCIe atomics, rather it is a
4087          * internal path natively support atomics, set have_atomics_support to true.
4088          */
4089         } else if ((adev->flags & AMD_IS_APU) &&
4090                    (amdgpu_ip_version(adev, GC_HWIP, 0) >
4091                     IP_VERSION(9, 0, 0))) {
4092                 adev->have_atomics_support = true;
4093         } else {
4094                 adev->have_atomics_support =
4095                         !pci_enable_atomic_ops_to_root(adev->pdev,
4096                                           PCI_EXP_DEVCAP2_ATOMIC_COMP32 |
4097                                           PCI_EXP_DEVCAP2_ATOMIC_COMP64);
4098         }
4099
4100         if (!adev->have_atomics_support)
4101                 dev_info(adev->dev, "PCIE atomic ops is not supported\n");
4102
4103         /* doorbell bar mapping and doorbell index init*/
4104         amdgpu_doorbell_init(adev);
4105
4106         if (amdgpu_emu_mode == 1) {
4107                 /* post the asic on emulation mode */
4108                 emu_soc_asic_init(adev);
4109                 goto fence_driver_init;
4110         }
4111
4112         amdgpu_reset_init(adev);
4113
4114         /* detect if we are with an SRIOV vbios */
4115         if (adev->bios)
4116                 amdgpu_device_detect_sriov_bios(adev);
4117
4118         /* check if we need to reset the asic
4119          *  E.g., driver was not cleanly unloaded previously, etc.
4120          */
4121         if (!amdgpu_sriov_vf(adev) && amdgpu_asic_need_reset_on_init(adev)) {
4122                 if (adev->gmc.xgmi.num_physical_nodes) {
4123                         dev_info(adev->dev, "Pending hive reset.\n");
4124                         adev->gmc.xgmi.pending_reset = true;
4125                         /* Only need to init necessary block for SMU to handle the reset */
4126                         for (i = 0; i < adev->num_ip_blocks; i++) {
4127                                 if (!adev->ip_blocks[i].status.valid)
4128                                         continue;
4129                                 if (!(adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_GMC ||
4130                                       adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_COMMON ||
4131                                       adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_IH ||
4132                                       adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_SMC)) {
4133                                         DRM_DEBUG("IP %s disabled for hw_init.\n",
4134                                                 adev->ip_blocks[i].version->funcs->name);
4135                                         adev->ip_blocks[i].status.hw = true;
4136                                 }
4137                         }
4138                 } else if (amdgpu_ip_version(adev, MP1_HWIP, 0) == IP_VERSION(13, 0, 10) &&
4139                                    !amdgpu_device_has_display_hardware(adev)) {
4140                                         r = psp_gpu_reset(adev);
4141                 } else {
4142                                 tmp = amdgpu_reset_method;
4143                                 /* It should do a default reset when loading or reloading the driver,
4144                                  * regardless of the module parameter reset_method.
4145                                  */
4146                                 amdgpu_reset_method = AMD_RESET_METHOD_NONE;
4147                                 r = amdgpu_asic_reset(adev);
4148                                 amdgpu_reset_method = tmp;
4149                 }
4150
4151                 if (r) {
4152                   dev_err(adev->dev, "asic reset on init failed\n");
4153                   goto failed;
4154                 }
4155         }
4156
4157         /* Post card if necessary */
4158         if (amdgpu_device_need_post(adev)) {
4159                 if (!adev->bios) {
4160                         dev_err(adev->dev, "no vBIOS found\n");
4161                         r = -EINVAL;
4162                         goto failed;
4163                 }
4164                 DRM_INFO("GPU posting now...\n");
4165                 r = amdgpu_device_asic_init(adev);
4166                 if (r) {
4167                         dev_err(adev->dev, "gpu post error!\n");
4168                         goto failed;
4169                 }
4170         }
4171
4172         if (adev->bios) {
4173                 if (adev->is_atom_fw) {
4174                         /* Initialize clocks */
4175                         r = amdgpu_atomfirmware_get_clock_info(adev);
4176                         if (r) {
4177                                 dev_err(adev->dev, "amdgpu_atomfirmware_get_clock_info failed\n");
4178                                 amdgpu_vf_error_put(adev, AMDGIM_ERROR_VF_ATOMBIOS_GET_CLOCK_FAIL, 0, 0);
4179                                 goto failed;
4180                         }
4181                 } else {
4182                         /* Initialize clocks */
4183                         r = amdgpu_atombios_get_clock_info(adev);
4184                         if (r) {
4185                                 dev_err(adev->dev, "amdgpu_atombios_get_clock_info failed\n");
4186                                 amdgpu_vf_error_put(adev, AMDGIM_ERROR_VF_ATOMBIOS_GET_CLOCK_FAIL, 0, 0);
4187                                 goto failed;
4188                         }
4189                         /* init i2c buses */
4190                         if (!amdgpu_device_has_dc_support(adev))
4191                                 amdgpu_atombios_i2c_init(adev);
4192                 }
4193         }
4194
4195 fence_driver_init:
4196         /* Fence driver */
4197         r = amdgpu_fence_driver_sw_init(adev);
4198         if (r) {
4199                 dev_err(adev->dev, "amdgpu_fence_driver_sw_init failed\n");
4200                 amdgpu_vf_error_put(adev, AMDGIM_ERROR_VF_FENCE_INIT_FAIL, 0, 0);
4201                 goto failed;
4202         }
4203
4204         /* init the mode config */
4205         drm_mode_config_init(adev_to_drm(adev));
4206
4207         r = amdgpu_device_ip_init(adev);
4208         if (r) {
4209                 dev_err(adev->dev, "amdgpu_device_ip_init failed\n");
4210                 amdgpu_vf_error_put(adev, AMDGIM_ERROR_VF_AMDGPU_INIT_FAIL, 0, 0);
4211                 goto release_ras_con;
4212         }
4213
4214         amdgpu_fence_driver_hw_init(adev);
4215
4216         dev_info(adev->dev,
4217                 "SE %d, SH per SE %d, CU per SH %d, active_cu_number %d\n",
4218                         adev->gfx.config.max_shader_engines,
4219                         adev->gfx.config.max_sh_per_se,
4220                         adev->gfx.config.max_cu_per_sh,
4221                         adev->gfx.cu_info.number);
4222
4223         adev->accel_working = true;
4224
4225         amdgpu_vm_check_compute_bug(adev);
4226
4227         /* Initialize the buffer migration limit. */
4228         if (amdgpu_moverate >= 0)
4229                 max_MBps = amdgpu_moverate;
4230         else
4231                 max_MBps = 8; /* Allow 8 MB/s. */
4232         /* Get a log2 for easy divisions. */
4233         adev->mm_stats.log2_max_MBps = ilog2(max(1u, max_MBps));
4234
4235         /*
4236          * Register gpu instance before amdgpu_device_enable_mgpu_fan_boost.
4237          * Otherwise the mgpu fan boost feature will be skipped due to the
4238          * gpu instance is counted less.
4239          */
4240         amdgpu_register_gpu_instance(adev);
4241
4242         /* enable clockgating, etc. after ib tests, etc. since some blocks require
4243          * explicit gating rather than handling it automatically.
4244          */
4245         if (!adev->gmc.xgmi.pending_reset) {
4246                 r = amdgpu_device_ip_late_init(adev);
4247                 if (r) {
4248                         dev_err(adev->dev, "amdgpu_device_ip_late_init failed\n");
4249                         amdgpu_vf_error_put(adev, AMDGIM_ERROR_VF_AMDGPU_LATE_INIT_FAIL, 0, r);
4250                         goto release_ras_con;
4251                 }
4252                 /* must succeed. */
4253                 amdgpu_ras_resume(adev);
4254                 queue_delayed_work(system_wq, &adev->delayed_init_work,
4255                                    msecs_to_jiffies(AMDGPU_RESUME_MS));
4256         }
4257
4258         if (amdgpu_sriov_vf(adev)) {
4259                 amdgpu_virt_release_full_gpu(adev, true);
4260                 flush_delayed_work(&adev->delayed_init_work);
4261         }
4262
4263         /*
4264          * Place those sysfs registering after `late_init`. As some of those
4265          * operations performed in `late_init` might affect the sysfs
4266          * interfaces creating.
4267          */
4268         r = amdgpu_atombios_sysfs_init(adev);
4269         if (r)
4270                 drm_err(&adev->ddev,
4271                         "registering atombios sysfs failed (%d).\n", r);
4272
4273         r = amdgpu_pm_sysfs_init(adev);
4274         if (r)
4275                 DRM_ERROR("registering pm sysfs failed (%d).\n", r);
4276
4277         r = amdgpu_ucode_sysfs_init(adev);
4278         if (r) {
4279                 adev->ucode_sysfs_en = false;
4280                 DRM_ERROR("Creating firmware sysfs failed (%d).\n", r);
4281         } else
4282                 adev->ucode_sysfs_en = true;
4283
4284         r = sysfs_create_files(&adev->dev->kobj, amdgpu_dev_attributes);
4285         if (r)
4286                 dev_err(adev->dev, "Could not create amdgpu device attr\n");
4287
4288         r = devm_device_add_group(adev->dev, &amdgpu_board_attrs_group);
4289         if (r)
4290                 dev_err(adev->dev,
4291                         "Could not create amdgpu board attributes\n");
4292
4293         amdgpu_fru_sysfs_init(adev);
4294         amdgpu_reg_state_sysfs_init(adev);
4295
4296         if (IS_ENABLED(CONFIG_PERF_EVENTS))
4297                 r = amdgpu_pmu_init(adev);
4298         if (r)
4299                 dev_err(adev->dev, "amdgpu_pmu_init failed\n");
4300
4301         /* Have stored pci confspace at hand for restore in sudden PCI error */
4302         if (amdgpu_device_cache_pci_state(adev->pdev))
4303                 pci_restore_state(pdev);
4304
4305         /* if we have > 1 VGA cards, then disable the amdgpu VGA resources */
4306         /* this will fail for cards that aren't VGA class devices, just
4307          * ignore it
4308          */
4309         if ((adev->pdev->class >> 8) == PCI_CLASS_DISPLAY_VGA)
4310                 vga_client_register(adev->pdev, amdgpu_device_vga_set_decode);
4311
4312         px = amdgpu_device_supports_px(ddev);
4313
4314         if (px || (!dev_is_removable(&adev->pdev->dev) &&
4315                                 apple_gmux_detect(NULL, NULL)))
4316                 vga_switcheroo_register_client(adev->pdev,
4317                                                &amdgpu_switcheroo_ops, px);
4318
4319         if (px)
4320                 vga_switcheroo_init_domain_pm_ops(adev->dev, &adev->vga_pm_domain);
4321
4322         if (adev->gmc.xgmi.pending_reset)
4323                 queue_delayed_work(system_wq, &mgpu_info.delayed_reset_work,
4324                                    msecs_to_jiffies(AMDGPU_RESUME_MS));
4325
4326         amdgpu_device_check_iommu_direct_map(adev);
4327
4328         return 0;
4329
4330 release_ras_con:
4331         if (amdgpu_sriov_vf(adev))
4332                 amdgpu_virt_release_full_gpu(adev, true);
4333
4334         /* failed in exclusive mode due to timeout */
4335         if (amdgpu_sriov_vf(adev) &&
4336                 !amdgpu_sriov_runtime(adev) &&
4337                 amdgpu_virt_mmio_blocked(adev) &&
4338                 !amdgpu_virt_wait_reset(adev)) {
4339                 dev_err(adev->dev, "VF exclusive mode timeout\n");
4340                 /* Don't send request since VF is inactive. */
4341                 adev->virt.caps &= ~AMDGPU_SRIOV_CAPS_RUNTIME;
4342                 adev->virt.ops = NULL;
4343                 r = -EAGAIN;
4344         }
4345         amdgpu_release_ras_context(adev);
4346
4347 failed:
4348         amdgpu_vf_error_trans_all(adev);
4349
4350         return r;
4351 }
4352
4353 static void amdgpu_device_unmap_mmio(struct amdgpu_device *adev)
4354 {
4355
4356         /* Clear all CPU mappings pointing to this device */
4357         unmap_mapping_range(adev->ddev.anon_inode->i_mapping, 0, 0, 1);
4358
4359         /* Unmap all mapped bars - Doorbell, registers and VRAM */
4360         amdgpu_doorbell_fini(adev);
4361
4362         iounmap(adev->rmmio);
4363         adev->rmmio = NULL;
4364         if (adev->mman.aper_base_kaddr)
4365                 iounmap(adev->mman.aper_base_kaddr);
4366         adev->mman.aper_base_kaddr = NULL;
4367
4368         /* Memory manager related */
4369         if (!adev->gmc.xgmi.connected_to_cpu && !adev->gmc.is_app_apu) {
4370                 arch_phys_wc_del(adev->gmc.vram_mtrr);
4371                 arch_io_free_memtype_wc(adev->gmc.aper_base, adev->gmc.aper_size);
4372         }
4373 }
4374
4375 /**
4376  * amdgpu_device_fini_hw - tear down the driver
4377  *
4378  * @adev: amdgpu_device pointer
4379  *
4380  * Tear down the driver info (all asics).
4381  * Called at driver shutdown.
4382  */
4383 void amdgpu_device_fini_hw(struct amdgpu_device *adev)
4384 {
4385         dev_info(adev->dev, "amdgpu: finishing device.\n");
4386         flush_delayed_work(&adev->delayed_init_work);
4387         adev->shutdown = true;
4388
4389         /* make sure IB test finished before entering exclusive mode
4390          * to avoid preemption on IB test
4391          */
4392         if (amdgpu_sriov_vf(adev)) {
4393                 amdgpu_virt_request_full_gpu(adev, false);
4394                 amdgpu_virt_fini_data_exchange(adev);
4395         }
4396
4397         /* disable all interrupts */
4398         amdgpu_irq_disable_all(adev);
4399         if (adev->mode_info.mode_config_initialized) {
4400                 if (!drm_drv_uses_atomic_modeset(adev_to_drm(adev)))
4401                         drm_helper_force_disable_all(adev_to_drm(adev));
4402                 else
4403                         drm_atomic_helper_shutdown(adev_to_drm(adev));
4404         }
4405         amdgpu_fence_driver_hw_fini(adev);
4406
4407         if (adev->mman.initialized)
4408                 drain_workqueue(adev->mman.bdev.wq);
4409
4410         if (adev->pm.sysfs_initialized)
4411                 amdgpu_pm_sysfs_fini(adev);
4412         if (adev->ucode_sysfs_en)
4413                 amdgpu_ucode_sysfs_fini(adev);
4414         sysfs_remove_files(&adev->dev->kobj, amdgpu_dev_attributes);
4415         amdgpu_fru_sysfs_fini(adev);
4416
4417         amdgpu_reg_state_sysfs_fini(adev);
4418
4419         /* disable ras feature must before hw fini */
4420         amdgpu_ras_pre_fini(adev);
4421
4422         amdgpu_ttm_set_buffer_funcs_status(adev, false);
4423
4424         amdgpu_device_ip_fini_early(adev);
4425
4426         amdgpu_irq_fini_hw(adev);
4427
4428         if (adev->mman.initialized)
4429                 ttm_device_clear_dma_mappings(&adev->mman.bdev);
4430
4431         amdgpu_gart_dummy_page_fini(adev);
4432
4433         if (drm_dev_is_unplugged(adev_to_drm(adev)))
4434                 amdgpu_device_unmap_mmio(adev);
4435
4436 }
4437
4438 void amdgpu_device_fini_sw(struct amdgpu_device *adev)
4439 {
4440         int idx;
4441         bool px;
4442
4443         amdgpu_fence_driver_sw_fini(adev);
4444         amdgpu_device_ip_fini(adev);
4445         amdgpu_ucode_release(&adev->firmware.gpu_info_fw);
4446         adev->accel_working = false;
4447         dma_fence_put(rcu_dereference_protected(adev->gang_submit, true));
4448
4449         amdgpu_reset_fini(adev);
4450
4451         /* free i2c buses */
4452         if (!amdgpu_device_has_dc_support(adev))
4453                 amdgpu_i2c_fini(adev);
4454
4455         if (amdgpu_emu_mode != 1)
4456                 amdgpu_atombios_fini(adev);
4457
4458         kfree(adev->bios);
4459         adev->bios = NULL;
4460
4461         kfree(adev->fru_info);
4462         adev->fru_info = NULL;
4463
4464         px = amdgpu_device_supports_px(adev_to_drm(adev));
4465
4466         if (px || (!dev_is_removable(&adev->pdev->dev) &&
4467                                 apple_gmux_detect(NULL, NULL)))
4468                 vga_switcheroo_unregister_client(adev->pdev);
4469
4470         if (px)
4471                 vga_switcheroo_fini_domain_pm_ops(adev->dev);
4472
4473         if ((adev->pdev->class >> 8) == PCI_CLASS_DISPLAY_VGA)
4474                 vga_client_unregister(adev->pdev);
4475
4476         if (drm_dev_enter(adev_to_drm(adev), &idx)) {
4477
4478                 iounmap(adev->rmmio);
4479                 adev->rmmio = NULL;
4480                 amdgpu_doorbell_fini(adev);
4481                 drm_dev_exit(idx);
4482         }
4483
4484         if (IS_ENABLED(CONFIG_PERF_EVENTS))
4485                 amdgpu_pmu_fini(adev);
4486         if (adev->mman.discovery_bin)
4487                 amdgpu_discovery_fini(adev);
4488
4489         amdgpu_reset_put_reset_domain(adev->reset_domain);
4490         adev->reset_domain = NULL;
4491
4492         kfree(adev->pci_state);
4493
4494 }
4495
4496 /**
4497  * amdgpu_device_evict_resources - evict device resources
4498  * @adev: amdgpu device object
4499  *
4500  * Evicts all ttm device resources(vram BOs, gart table) from the lru list
4501  * of the vram memory type. Mainly used for evicting device resources
4502  * at suspend time.
4503  *
4504  */
4505 static int amdgpu_device_evict_resources(struct amdgpu_device *adev)
4506 {
4507         int ret;
4508
4509         /* No need to evict vram on APUs for suspend to ram or s2idle */
4510         if ((adev->in_s3 || adev->in_s0ix) && (adev->flags & AMD_IS_APU))
4511                 return 0;
4512
4513         ret = amdgpu_ttm_evict_resources(adev, TTM_PL_VRAM);
4514         if (ret)
4515                 DRM_WARN("evicting device resources failed\n");
4516         return ret;
4517 }
4518
4519 /*
4520  * Suspend & resume.
4521  */
4522 /**
4523  * amdgpu_device_prepare - prepare for device suspend
4524  *
4525  * @dev: drm dev pointer
4526  *
4527  * Prepare to put the hw in the suspend state (all asics).
4528  * Returns 0 for success or an error on failure.
4529  * Called at driver suspend.
4530  */
4531 int amdgpu_device_prepare(struct drm_device *dev)
4532 {
4533         struct amdgpu_device *adev = drm_to_adev(dev);
4534         int i, r;
4535
4536         amdgpu_choose_low_power_state(adev);
4537
4538         if (dev->switch_power_state == DRM_SWITCH_POWER_OFF)
4539                 return 0;
4540
4541         /* Evict the majority of BOs before starting suspend sequence */
4542         r = amdgpu_device_evict_resources(adev);
4543         if (r)
4544                 goto unprepare;
4545
4546         flush_delayed_work(&adev->gfx.gfx_off_delay_work);
4547
4548         for (i = 0; i < adev->num_ip_blocks; i++) {
4549                 if (!adev->ip_blocks[i].status.valid)
4550                         continue;
4551                 if (!adev->ip_blocks[i].version->funcs->prepare_suspend)
4552                         continue;
4553                 r = adev->ip_blocks[i].version->funcs->prepare_suspend((void *)adev);
4554                 if (r)
4555                         goto unprepare;
4556         }
4557
4558         return 0;
4559
4560 unprepare:
4561         adev->in_s0ix = adev->in_s3 = false;
4562
4563         return r;
4564 }
4565
4566 /**
4567  * amdgpu_device_suspend - initiate device suspend
4568  *
4569  * @dev: drm dev pointer
4570  * @fbcon : notify the fbdev of suspend
4571  *
4572  * Puts the hw in the suspend state (all asics).
4573  * Returns 0 for success or an error on failure.
4574  * Called at driver suspend.
4575  */
4576 int amdgpu_device_suspend(struct drm_device *dev, bool fbcon)
4577 {
4578         struct amdgpu_device *adev = drm_to_adev(dev);
4579         int r = 0;
4580
4581         if (dev->switch_power_state == DRM_SWITCH_POWER_OFF)
4582                 return 0;
4583
4584         adev->in_suspend = true;
4585
4586         if (amdgpu_sriov_vf(adev)) {
4587                 amdgpu_virt_fini_data_exchange(adev);
4588                 r = amdgpu_virt_request_full_gpu(adev, false);
4589                 if (r)
4590                         return r;
4591         }
4592
4593         if (amdgpu_acpi_smart_shift_update(dev, AMDGPU_SS_DEV_D3))
4594                 DRM_WARN("smart shift update failed\n");
4595
4596         if (fbcon)
4597                 drm_fb_helper_set_suspend_unlocked(adev_to_drm(adev)->fb_helper, true);
4598
4599         cancel_delayed_work_sync(&adev->delayed_init_work);
4600
4601         amdgpu_ras_suspend(adev);
4602
4603         amdgpu_device_ip_suspend_phase1(adev);
4604
4605         if (!adev->in_s0ix)
4606                 amdgpu_amdkfd_suspend(adev, adev->in_runpm);
4607
4608         r = amdgpu_device_evict_resources(adev);
4609         if (r)
4610                 return r;
4611
4612         amdgpu_ttm_set_buffer_funcs_status(adev, false);
4613
4614         amdgpu_fence_driver_hw_fini(adev);
4615
4616         amdgpu_device_ip_suspend_phase2(adev);
4617
4618         if (amdgpu_sriov_vf(adev))
4619                 amdgpu_virt_release_full_gpu(adev, false);
4620
4621         r = amdgpu_dpm_notify_rlc_state(adev, false);
4622         if (r)
4623                 return r;
4624
4625         return 0;
4626 }
4627
4628 /**
4629  * amdgpu_device_resume - initiate device resume
4630  *
4631  * @dev: drm dev pointer
4632  * @fbcon : notify the fbdev of resume
4633  *
4634  * Bring the hw back to operating state (all asics).
4635  * Returns 0 for success or an error on failure.
4636  * Called at driver resume.
4637  */
4638 int amdgpu_device_resume(struct drm_device *dev, bool fbcon)
4639 {
4640         struct amdgpu_device *adev = drm_to_adev(dev);
4641         int r = 0;
4642
4643         if (amdgpu_sriov_vf(adev)) {
4644                 r = amdgpu_virt_request_full_gpu(adev, true);
4645                 if (r)
4646                         return r;
4647         }
4648
4649         if (dev->switch_power_state == DRM_SWITCH_POWER_OFF)
4650                 return 0;
4651
4652         if (adev->in_s0ix)
4653                 amdgpu_dpm_gfx_state_change(adev, sGpuChangeState_D0Entry);
4654
4655         /* post card */
4656         if (amdgpu_device_need_post(adev)) {
4657                 r = amdgpu_device_asic_init(adev);
4658                 if (r)
4659                         dev_err(adev->dev, "amdgpu asic init failed\n");
4660         }
4661
4662         r = amdgpu_device_ip_resume(adev);
4663
4664         if (r) {
4665                 dev_err(adev->dev, "amdgpu_device_ip_resume failed (%d).\n", r);
4666                 goto exit;
4667         }
4668         amdgpu_fence_driver_hw_init(adev);
4669
4670         if (!adev->in_s0ix) {
4671                 r = amdgpu_amdkfd_resume(adev, adev->in_runpm);
4672                 if (r)
4673                         goto exit;
4674         }
4675
4676         r = amdgpu_device_ip_late_init(adev);
4677         if (r)
4678                 goto exit;
4679
4680         queue_delayed_work(system_wq, &adev->delayed_init_work,
4681                            msecs_to_jiffies(AMDGPU_RESUME_MS));
4682 exit:
4683         if (amdgpu_sriov_vf(adev)) {
4684                 amdgpu_virt_init_data_exchange(adev);
4685                 amdgpu_virt_release_full_gpu(adev, true);
4686         }
4687
4688         if (r)
4689                 return r;
4690
4691         /* Make sure IB tests flushed */
4692         flush_delayed_work(&adev->delayed_init_work);
4693
4694         if (fbcon)
4695                 drm_fb_helper_set_suspend_unlocked(adev_to_drm(adev)->fb_helper, false);
4696
4697         amdgpu_ras_resume(adev);
4698
4699         if (adev->mode_info.num_crtc) {
4700                 /*
4701                  * Most of the connector probing functions try to acquire runtime pm
4702                  * refs to ensure that the GPU is powered on when connector polling is
4703                  * performed. Since we're calling this from a runtime PM callback,
4704                  * trying to acquire rpm refs will cause us to deadlock.
4705                  *
4706                  * Since we're guaranteed to be holding the rpm lock, it's safe to
4707                  * temporarily disable the rpm helpers so this doesn't deadlock us.
4708                  */
4709 #ifdef CONFIG_PM
4710                 dev->dev->power.disable_depth++;
4711 #endif
4712                 if (!adev->dc_enabled)
4713                         drm_helper_hpd_irq_event(dev);
4714                 else
4715                         drm_kms_helper_hotplug_event(dev);
4716 #ifdef CONFIG_PM
4717                 dev->dev->power.disable_depth--;
4718 #endif
4719         }
4720         adev->in_suspend = false;
4721
4722         if (adev->enable_mes)
4723                 amdgpu_mes_self_test(adev);
4724
4725         if (amdgpu_acpi_smart_shift_update(dev, AMDGPU_SS_DEV_D0))
4726                 DRM_WARN("smart shift update failed\n");
4727
4728         return 0;
4729 }
4730
4731 /**
4732  * amdgpu_device_ip_check_soft_reset - did soft reset succeed
4733  *
4734  * @adev: amdgpu_device pointer
4735  *
4736  * The list of all the hardware IPs that make up the asic is walked and
4737  * the check_soft_reset callbacks are run.  check_soft_reset determines
4738  * if the asic is still hung or not.
4739  * Returns true if any of the IPs are still in a hung state, false if not.
4740  */
4741 static bool amdgpu_device_ip_check_soft_reset(struct amdgpu_device *adev)
4742 {
4743         int i;
4744         bool asic_hang = false;
4745
4746         if (amdgpu_sriov_vf(adev))
4747                 return true;
4748
4749         if (amdgpu_asic_need_full_reset(adev))
4750                 return true;
4751
4752         for (i = 0; i < adev->num_ip_blocks; i++) {
4753                 if (!adev->ip_blocks[i].status.valid)
4754                         continue;
4755                 if (adev->ip_blocks[i].version->funcs->check_soft_reset)
4756                         adev->ip_blocks[i].status.hang =
4757                                 adev->ip_blocks[i].version->funcs->check_soft_reset(adev);
4758                 if (adev->ip_blocks[i].status.hang) {
4759                         dev_info(adev->dev, "IP block:%s is hung!\n", adev->ip_blocks[i].version->funcs->name);
4760                         asic_hang = true;
4761                 }
4762         }
4763         return asic_hang;
4764 }
4765
4766 /**
4767  * amdgpu_device_ip_pre_soft_reset - prepare for soft reset
4768  *
4769  * @adev: amdgpu_device pointer
4770  *
4771  * The list of all the hardware IPs that make up the asic is walked and the
4772  * pre_soft_reset callbacks are run if the block is hung.  pre_soft_reset
4773  * handles any IP specific hardware or software state changes that are
4774  * necessary for a soft reset to succeed.
4775  * Returns 0 on success, negative error code on failure.
4776  */
4777 static int amdgpu_device_ip_pre_soft_reset(struct amdgpu_device *adev)
4778 {
4779         int i, r = 0;
4780
4781         for (i = 0; i < adev->num_ip_blocks; i++) {
4782                 if (!adev->ip_blocks[i].status.valid)
4783                         continue;
4784                 if (adev->ip_blocks[i].status.hang &&
4785                     adev->ip_blocks[i].version->funcs->pre_soft_reset) {
4786                         r = adev->ip_blocks[i].version->funcs->pre_soft_reset(adev);
4787                         if (r)
4788                                 return r;
4789                 }
4790         }
4791
4792         return 0;
4793 }
4794
4795 /**
4796  * amdgpu_device_ip_need_full_reset - check if a full asic reset is needed
4797  *
4798  * @adev: amdgpu_device pointer
4799  *
4800  * Some hardware IPs cannot be soft reset.  If they are hung, a full gpu
4801  * reset is necessary to recover.
4802  * Returns true if a full asic reset is required, false if not.
4803  */
4804 static bool amdgpu_device_ip_need_full_reset(struct amdgpu_device *adev)
4805 {
4806         int i;
4807
4808         if (amdgpu_asic_need_full_reset(adev))
4809                 return true;
4810
4811         for (i = 0; i < adev->num_ip_blocks; i++) {
4812                 if (!adev->ip_blocks[i].status.valid)
4813                         continue;
4814                 if ((adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_GMC) ||
4815                     (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_SMC) ||
4816                     (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_ACP) ||
4817                     (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_DCE) ||
4818                      adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_PSP) {
4819                         if (adev->ip_blocks[i].status.hang) {
4820                                 dev_info(adev->dev, "Some block need full reset!\n");
4821                                 return true;
4822                         }
4823                 }
4824         }
4825         return false;
4826 }
4827
4828 /**
4829  * amdgpu_device_ip_soft_reset - do a soft reset
4830  *
4831  * @adev: amdgpu_device pointer
4832  *
4833  * The list of all the hardware IPs that make up the asic is walked and the
4834  * soft_reset callbacks are run if the block is hung.  soft_reset handles any
4835  * IP specific hardware or software state changes that are necessary to soft
4836  * reset the IP.
4837  * Returns 0 on success, negative error code on failure.
4838  */
4839 static int amdgpu_device_ip_soft_reset(struct amdgpu_device *adev)
4840 {
4841         int i, r = 0;
4842
4843         for (i = 0; i < adev->num_ip_blocks; i++) {
4844                 if (!adev->ip_blocks[i].status.valid)
4845                         continue;
4846                 if (adev->ip_blocks[i].status.hang &&
4847                     adev->ip_blocks[i].version->funcs->soft_reset) {
4848                         r = adev->ip_blocks[i].version->funcs->soft_reset(adev);
4849                         if (r)
4850                                 return r;
4851                 }
4852         }
4853
4854         return 0;
4855 }
4856
4857 /**
4858  * amdgpu_device_ip_post_soft_reset - clean up from soft reset
4859  *
4860  * @adev: amdgpu_device pointer
4861  *
4862  * The list of all the hardware IPs that make up the asic is walked and the
4863  * post_soft_reset callbacks are run if the asic was hung.  post_soft_reset
4864  * handles any IP specific hardware or software state changes that are
4865  * necessary after the IP has been soft reset.
4866  * Returns 0 on success, negative error code on failure.
4867  */
4868 static int amdgpu_device_ip_post_soft_reset(struct amdgpu_device *adev)
4869 {
4870         int i, r = 0;
4871
4872         for (i = 0; i < adev->num_ip_blocks; i++) {
4873                 if (!adev->ip_blocks[i].status.valid)
4874                         continue;
4875                 if (adev->ip_blocks[i].status.hang &&
4876                     adev->ip_blocks[i].version->funcs->post_soft_reset)
4877                         r = adev->ip_blocks[i].version->funcs->post_soft_reset(adev);
4878                 if (r)
4879                         return r;
4880         }
4881
4882         return 0;
4883 }
4884
4885 /**
4886  * amdgpu_device_recover_vram - Recover some VRAM contents
4887  *
4888  * @adev: amdgpu_device pointer
4889  *
4890  * Restores the contents of VRAM buffers from the shadows in GTT.  Used to
4891  * restore things like GPUVM page tables after a GPU reset where
4892  * the contents of VRAM might be lost.
4893  *
4894  * Returns:
4895  * 0 on success, negative error code on failure.
4896  */
4897 static int amdgpu_device_recover_vram(struct amdgpu_device *adev)
4898 {
4899         struct dma_fence *fence = NULL, *next = NULL;
4900         struct amdgpu_bo *shadow;
4901         struct amdgpu_bo_vm *vmbo;
4902         long r = 1, tmo;
4903
4904         if (amdgpu_sriov_runtime(adev))
4905                 tmo = msecs_to_jiffies(8000);
4906         else
4907                 tmo = msecs_to_jiffies(100);
4908
4909         dev_info(adev->dev, "recover vram bo from shadow start\n");
4910         mutex_lock(&adev->shadow_list_lock);
4911         list_for_each_entry(vmbo, &adev->shadow_list, shadow_list) {
4912                 /* If vm is compute context or adev is APU, shadow will be NULL */
4913                 if (!vmbo->shadow)
4914                         continue;
4915                 shadow = vmbo->shadow;
4916
4917                 /* No need to recover an evicted BO */
4918                 if (shadow->tbo.resource->mem_type != TTM_PL_TT ||
4919                     shadow->tbo.resource->start == AMDGPU_BO_INVALID_OFFSET ||
4920                     shadow->parent->tbo.resource->mem_type != TTM_PL_VRAM)
4921                         continue;
4922
4923                 r = amdgpu_bo_restore_shadow(shadow, &next);
4924                 if (r)
4925                         break;
4926
4927                 if (fence) {
4928                         tmo = dma_fence_wait_timeout(fence, false, tmo);
4929                         dma_fence_put(fence);
4930                         fence = next;
4931                         if (tmo == 0) {
4932                                 r = -ETIMEDOUT;
4933                                 break;
4934                         } else if (tmo < 0) {
4935                                 r = tmo;
4936                                 break;
4937                         }
4938                 } else {
4939                         fence = next;
4940                 }
4941         }
4942         mutex_unlock(&adev->shadow_list_lock);
4943
4944         if (fence)
4945                 tmo = dma_fence_wait_timeout(fence, false, tmo);
4946         dma_fence_put(fence);
4947
4948         if (r < 0 || tmo <= 0) {
4949                 dev_err(adev->dev, "recover vram bo from shadow failed, r is %ld, tmo is %ld\n", r, tmo);
4950                 return -EIO;
4951         }
4952
4953         dev_info(adev->dev, "recover vram bo from shadow done\n");
4954         return 0;
4955 }
4956
4957
4958 /**
4959  * amdgpu_device_reset_sriov - reset ASIC for SR-IOV vf
4960  *
4961  * @adev: amdgpu_device pointer
4962  * @from_hypervisor: request from hypervisor
4963  *
4964  * do VF FLR and reinitialize Asic
4965  * return 0 means succeeded otherwise failed
4966  */
4967 static int amdgpu_device_reset_sriov(struct amdgpu_device *adev,
4968                                      bool from_hypervisor)
4969 {
4970         int r;
4971         struct amdgpu_hive_info *hive = NULL;
4972         int retry_limit = 0;
4973
4974 retry:
4975         amdgpu_amdkfd_pre_reset(adev);
4976
4977         if (from_hypervisor)
4978                 r = amdgpu_virt_request_full_gpu(adev, true);
4979         else
4980                 r = amdgpu_virt_reset_gpu(adev);
4981         if (r)
4982                 return r;
4983         amdgpu_irq_gpu_reset_resume_helper(adev);
4984
4985         /* some sw clean up VF needs to do before recover */
4986         amdgpu_virt_post_reset(adev);
4987
4988         /* Resume IP prior to SMC */
4989         r = amdgpu_device_ip_reinit_early_sriov(adev);
4990         if (r)
4991                 goto error;
4992
4993         amdgpu_virt_init_data_exchange(adev);
4994
4995         r = amdgpu_device_fw_loading(adev);
4996         if (r)
4997                 return r;
4998
4999         /* now we are okay to resume SMC/CP/SDMA */
5000         r = amdgpu_device_ip_reinit_late_sriov(adev);
5001         if (r)
5002                 goto error;
5003
5004         hive = amdgpu_get_xgmi_hive(adev);
5005         /* Update PSP FW topology after reset */
5006         if (hive && adev->gmc.xgmi.num_physical_nodes > 1)
5007                 r = amdgpu_xgmi_update_topology(hive, adev);
5008
5009         if (hive)
5010                 amdgpu_put_xgmi_hive(hive);
5011
5012         if (!r) {
5013                 r = amdgpu_ib_ring_tests(adev);
5014
5015                 amdgpu_amdkfd_post_reset(adev);
5016         }
5017
5018 error:
5019         if (!r && adev->virt.gim_feature & AMDGIM_FEATURE_GIM_FLR_VRAMLOST) {
5020                 amdgpu_inc_vram_lost(adev);
5021                 r = amdgpu_device_recover_vram(adev);
5022         }
5023         amdgpu_virt_release_full_gpu(adev, true);
5024
5025         if (AMDGPU_RETRY_SRIOV_RESET(r)) {
5026                 if (retry_limit < AMDGPU_MAX_RETRY_LIMIT) {
5027                         retry_limit++;
5028                         goto retry;
5029                 } else
5030                         DRM_ERROR("GPU reset retry is beyond the retry limit\n");
5031         }
5032
5033         return r;
5034 }
5035
5036 /**
5037  * amdgpu_device_has_job_running - check if there is any job in mirror list
5038  *
5039  * @adev: amdgpu_device pointer
5040  *
5041  * check if there is any job in mirror list
5042  */
5043 bool amdgpu_device_has_job_running(struct amdgpu_device *adev)
5044 {
5045         int i;
5046         struct drm_sched_job *job;
5047
5048         for (i = 0; i < AMDGPU_MAX_RINGS; ++i) {
5049                 struct amdgpu_ring *ring = adev->rings[i];
5050
5051                 if (!amdgpu_ring_sched_ready(ring))
5052                         continue;
5053
5054                 spin_lock(&ring->sched.job_list_lock);
5055                 job = list_first_entry_or_null(&ring->sched.pending_list,
5056                                                struct drm_sched_job, list);
5057                 spin_unlock(&ring->sched.job_list_lock);
5058                 if (job)
5059                         return true;
5060         }
5061         return false;
5062 }
5063
5064 /**
5065  * amdgpu_device_should_recover_gpu - check if we should try GPU recovery
5066  *
5067  * @adev: amdgpu_device pointer
5068  *
5069  * Check amdgpu_gpu_recovery and SRIOV status to see if we should try to recover
5070  * a hung GPU.
5071  */
5072 bool amdgpu_device_should_recover_gpu(struct amdgpu_device *adev)
5073 {
5074
5075         if (amdgpu_gpu_recovery == 0)
5076                 goto disabled;
5077
5078         /* Skip soft reset check in fatal error mode */
5079         if (!amdgpu_ras_is_poison_mode_supported(adev))
5080                 return true;
5081
5082         if (amdgpu_sriov_vf(adev))
5083                 return true;
5084
5085         if (amdgpu_gpu_recovery == -1) {
5086                 switch (adev->asic_type) {
5087 #ifdef CONFIG_DRM_AMDGPU_SI
5088                 case CHIP_VERDE:
5089                 case CHIP_TAHITI:
5090                 case CHIP_PITCAIRN:
5091                 case CHIP_OLAND:
5092                 case CHIP_HAINAN:
5093 #endif
5094 #ifdef CONFIG_DRM_AMDGPU_CIK
5095                 case CHIP_KAVERI:
5096                 case CHIP_KABINI:
5097                 case CHIP_MULLINS:
5098 #endif
5099                 case CHIP_CARRIZO:
5100                 case CHIP_STONEY:
5101                 case CHIP_CYAN_SKILLFISH:
5102                         goto disabled;
5103                 default:
5104                         break;
5105                 }
5106         }
5107
5108         return true;
5109
5110 disabled:
5111                 dev_info(adev->dev, "GPU recovery disabled.\n");
5112                 return false;
5113 }
5114
5115 int amdgpu_device_mode1_reset(struct amdgpu_device *adev)
5116 {
5117         u32 i;
5118         int ret = 0;
5119
5120         amdgpu_atombios_scratch_regs_engine_hung(adev, true);
5121
5122         dev_info(adev->dev, "GPU mode1 reset\n");
5123
5124         /* disable BM */
5125         pci_clear_master(adev->pdev);
5126
5127         amdgpu_device_cache_pci_state(adev->pdev);
5128
5129         if (amdgpu_dpm_is_mode1_reset_supported(adev)) {
5130                 dev_info(adev->dev, "GPU smu mode1 reset\n");
5131                 ret = amdgpu_dpm_mode1_reset(adev);
5132         } else {
5133                 dev_info(adev->dev, "GPU psp mode1 reset\n");
5134                 ret = psp_gpu_reset(adev);
5135         }
5136
5137         if (ret)
5138                 goto mode1_reset_failed;
5139
5140         amdgpu_device_load_pci_state(adev->pdev);
5141         ret = amdgpu_psp_wait_for_bootloader(adev);
5142         if (ret)
5143                 goto mode1_reset_failed;
5144
5145         /* wait for asic to come out of reset */
5146         for (i = 0; i < adev->usec_timeout; i++) {
5147                 u32 memsize = adev->nbio.funcs->get_memsize(adev);
5148
5149                 if (memsize != 0xffffffff)
5150                         break;
5151                 udelay(1);
5152         }
5153
5154         if (i >= adev->usec_timeout) {
5155                 ret = -ETIMEDOUT;
5156                 goto mode1_reset_failed;
5157         }
5158
5159         amdgpu_atombios_scratch_regs_engine_hung(adev, false);
5160
5161         return 0;
5162
5163 mode1_reset_failed:
5164         dev_err(adev->dev, "GPU mode1 reset failed\n");
5165         return ret;
5166 }
5167
5168 int amdgpu_device_pre_asic_reset(struct amdgpu_device *adev,
5169                                  struct amdgpu_reset_context *reset_context)
5170 {
5171         int i, r = 0;
5172         struct amdgpu_job *job = NULL;
5173         bool need_full_reset =
5174                 test_bit(AMDGPU_NEED_FULL_RESET, &reset_context->flags);
5175
5176         if (reset_context->reset_req_dev == adev)
5177                 job = reset_context->job;
5178
5179         if (amdgpu_sriov_vf(adev)) {
5180                 /* stop the data exchange thread */
5181                 amdgpu_virt_fini_data_exchange(adev);
5182         }
5183
5184         amdgpu_fence_driver_isr_toggle(adev, true);
5185
5186         /* block all schedulers and reset given job's ring */
5187         for (i = 0; i < AMDGPU_MAX_RINGS; ++i) {
5188                 struct amdgpu_ring *ring = adev->rings[i];
5189
5190                 if (!amdgpu_ring_sched_ready(ring))
5191                         continue;
5192
5193                 /* Clear job fence from fence drv to avoid force_completion
5194                  * leave NULL and vm flush fence in fence drv
5195                  */
5196                 amdgpu_fence_driver_clear_job_fences(ring);
5197
5198                 /* after all hw jobs are reset, hw fence is meaningless, so force_completion */
5199                 amdgpu_fence_driver_force_completion(ring);
5200         }
5201
5202         amdgpu_fence_driver_isr_toggle(adev, false);
5203
5204         if (job && job->vm)
5205                 drm_sched_increase_karma(&job->base);
5206
5207         r = amdgpu_reset_prepare_hwcontext(adev, reset_context);
5208         /* If reset handler not implemented, continue; otherwise return */
5209         if (r == -EOPNOTSUPP)
5210                 r = 0;
5211         else
5212                 return r;
5213
5214         /* Don't suspend on bare metal if we are not going to HW reset the ASIC */
5215         if (!amdgpu_sriov_vf(adev)) {
5216
5217                 if (!need_full_reset)
5218                         need_full_reset = amdgpu_device_ip_need_full_reset(adev);
5219
5220                 if (!need_full_reset && amdgpu_gpu_recovery &&
5221                     amdgpu_device_ip_check_soft_reset(adev)) {
5222                         amdgpu_device_ip_pre_soft_reset(adev);
5223                         r = amdgpu_device_ip_soft_reset(adev);
5224                         amdgpu_device_ip_post_soft_reset(adev);
5225                         if (r || amdgpu_device_ip_check_soft_reset(adev)) {
5226                                 dev_info(adev->dev, "soft reset failed, will fallback to full reset!\n");
5227                                 need_full_reset = true;
5228                         }
5229                 }
5230
5231                 if (need_full_reset)
5232                         r = amdgpu_device_ip_suspend(adev);
5233                 if (need_full_reset)
5234                         set_bit(AMDGPU_NEED_FULL_RESET, &reset_context->flags);
5235                 else
5236                         clear_bit(AMDGPU_NEED_FULL_RESET,
5237                                   &reset_context->flags);
5238         }
5239
5240         return r;
5241 }
5242
5243 static int amdgpu_reset_reg_dumps(struct amdgpu_device *adev)
5244 {
5245         int i;
5246
5247         lockdep_assert_held(&adev->reset_domain->sem);
5248
5249         for (i = 0; i < adev->reset_info.num_regs; i++) {
5250                 adev->reset_info.reset_dump_reg_value[i] =
5251                         RREG32(adev->reset_info.reset_dump_reg_list[i]);
5252
5253                 trace_amdgpu_reset_reg_dumps(adev->reset_info.reset_dump_reg_list[i],
5254                                              adev->reset_info.reset_dump_reg_value[i]);
5255         }
5256
5257         return 0;
5258 }
5259
5260 int amdgpu_do_asic_reset(struct list_head *device_list_handle,
5261                          struct amdgpu_reset_context *reset_context)
5262 {
5263         struct amdgpu_device *tmp_adev = NULL;
5264         bool need_full_reset, skip_hw_reset, vram_lost = false;
5265         int r = 0;
5266
5267         /* Try reset handler method first */
5268         tmp_adev = list_first_entry(device_list_handle, struct amdgpu_device,
5269                                     reset_list);
5270         amdgpu_reset_reg_dumps(tmp_adev);
5271
5272         reset_context->reset_device_list = device_list_handle;
5273         r = amdgpu_reset_perform_reset(tmp_adev, reset_context);
5274         /* If reset handler not implemented, continue; otherwise return */
5275         if (r == -EOPNOTSUPP)
5276                 r = 0;
5277         else
5278                 return r;
5279
5280         /* Reset handler not implemented, use the default method */
5281         need_full_reset =
5282                 test_bit(AMDGPU_NEED_FULL_RESET, &reset_context->flags);
5283         skip_hw_reset = test_bit(AMDGPU_SKIP_HW_RESET, &reset_context->flags);
5284
5285         /*
5286          * ASIC reset has to be done on all XGMI hive nodes ASAP
5287          * to allow proper links negotiation in FW (within 1 sec)
5288          */
5289         if (!skip_hw_reset && need_full_reset) {
5290                 list_for_each_entry(tmp_adev, device_list_handle, reset_list) {
5291                         /* For XGMI run all resets in parallel to speed up the process */
5292                         if (tmp_adev->gmc.xgmi.num_physical_nodes > 1) {
5293                                 tmp_adev->gmc.xgmi.pending_reset = false;
5294                                 if (!queue_work(system_unbound_wq, &tmp_adev->xgmi_reset_work))
5295                                         r = -EALREADY;
5296                         } else
5297                                 r = amdgpu_asic_reset(tmp_adev);
5298
5299                         if (r) {
5300                                 dev_err(tmp_adev->dev, "ASIC reset failed with error, %d for drm dev, %s",
5301                                          r, adev_to_drm(tmp_adev)->unique);
5302                                 goto out;
5303                         }
5304                 }
5305
5306                 /* For XGMI wait for all resets to complete before proceed */
5307                 if (!r) {
5308                         list_for_each_entry(tmp_adev, device_list_handle, reset_list) {
5309                                 if (tmp_adev->gmc.xgmi.num_physical_nodes > 1) {
5310                                         flush_work(&tmp_adev->xgmi_reset_work);
5311                                         r = tmp_adev->asic_reset_res;
5312                                         if (r)
5313                                                 break;
5314                                 }
5315                         }
5316                 }
5317         }
5318
5319         if (!r && amdgpu_ras_intr_triggered()) {
5320                 list_for_each_entry(tmp_adev, device_list_handle, reset_list) {
5321                         amdgpu_ras_reset_error_count(tmp_adev, AMDGPU_RAS_BLOCK__MMHUB);
5322                 }
5323
5324                 amdgpu_ras_intr_cleared();
5325         }
5326
5327         list_for_each_entry(tmp_adev, device_list_handle, reset_list) {
5328                 if (need_full_reset) {
5329                         /* post card */
5330                         amdgpu_ras_set_fed(tmp_adev, false);
5331                         r = amdgpu_device_asic_init(tmp_adev);
5332                         if (r) {
5333                                 dev_warn(tmp_adev->dev, "asic atom init failed!");
5334                         } else {
5335                                 dev_info(tmp_adev->dev, "GPU reset succeeded, trying to resume\n");
5336
5337                                 r = amdgpu_device_ip_resume_phase1(tmp_adev);
5338                                 if (r)
5339                                         goto out;
5340
5341                                 vram_lost = amdgpu_device_check_vram_lost(tmp_adev);
5342
5343                                 amdgpu_coredump(tmp_adev, vram_lost, reset_context);
5344
5345                                 if (vram_lost) {
5346                                         DRM_INFO("VRAM is lost due to GPU reset!\n");
5347                                         amdgpu_inc_vram_lost(tmp_adev);
5348                                 }
5349
5350                                 r = amdgpu_device_fw_loading(tmp_adev);
5351                                 if (r)
5352                                         return r;
5353
5354                                 r = amdgpu_xcp_restore_partition_mode(
5355                                         tmp_adev->xcp_mgr);
5356                                 if (r)
5357                                         goto out;
5358
5359                                 r = amdgpu_device_ip_resume_phase2(tmp_adev);
5360                                 if (r)
5361                                         goto out;
5362
5363                                 if (tmp_adev->mman.buffer_funcs_ring->sched.ready)
5364                                         amdgpu_ttm_set_buffer_funcs_status(tmp_adev, true);
5365
5366                                 if (vram_lost)
5367                                         amdgpu_device_fill_reset_magic(tmp_adev);
5368
5369                                 /*
5370                                  * Add this ASIC as tracked as reset was already
5371                                  * complete successfully.
5372                                  */
5373                                 amdgpu_register_gpu_instance(tmp_adev);
5374
5375                                 if (!reset_context->hive &&
5376                                     tmp_adev->gmc.xgmi.num_physical_nodes > 1)
5377                                         amdgpu_xgmi_add_device(tmp_adev);
5378
5379                                 r = amdgpu_device_ip_late_init(tmp_adev);
5380                                 if (r)
5381                                         goto out;
5382
5383                                 drm_fb_helper_set_suspend_unlocked(adev_to_drm(tmp_adev)->fb_helper, false);
5384
5385                                 /*
5386                                  * The GPU enters bad state once faulty pages
5387                                  * by ECC has reached the threshold, and ras
5388                                  * recovery is scheduled next. So add one check
5389                                  * here to break recovery if it indeed exceeds
5390                                  * bad page threshold, and remind user to
5391                                  * retire this GPU or setting one bigger
5392                                  * bad_page_threshold value to fix this once
5393                                  * probing driver again.
5394                                  */
5395                                 if (!amdgpu_ras_eeprom_check_err_threshold(tmp_adev)) {
5396                                         /* must succeed. */
5397                                         amdgpu_ras_resume(tmp_adev);
5398                                 } else {
5399                                         r = -EINVAL;
5400                                         goto out;
5401                                 }
5402
5403                                 /* Update PSP FW topology after reset */
5404                                 if (reset_context->hive &&
5405                                     tmp_adev->gmc.xgmi.num_physical_nodes > 1)
5406                                         r = amdgpu_xgmi_update_topology(
5407                                                 reset_context->hive, tmp_adev);
5408                         }
5409                 }
5410
5411 out:
5412                 if (!r) {
5413                         amdgpu_irq_gpu_reset_resume_helper(tmp_adev);
5414                         r = amdgpu_ib_ring_tests(tmp_adev);
5415                         if (r) {
5416                                 dev_err(tmp_adev->dev, "ib ring test failed (%d).\n", r);
5417                                 need_full_reset = true;
5418                                 r = -EAGAIN;
5419                                 goto end;
5420                         }
5421                 }
5422
5423                 if (!r)
5424                         r = amdgpu_device_recover_vram(tmp_adev);
5425                 else
5426                         tmp_adev->asic_reset_res = r;
5427         }
5428
5429 end:
5430         if (need_full_reset)
5431                 set_bit(AMDGPU_NEED_FULL_RESET, &reset_context->flags);
5432         else
5433                 clear_bit(AMDGPU_NEED_FULL_RESET, &reset_context->flags);
5434         return r;
5435 }
5436
5437 static void amdgpu_device_set_mp1_state(struct amdgpu_device *adev)
5438 {
5439
5440         switch (amdgpu_asic_reset_method(adev)) {
5441         case AMD_RESET_METHOD_MODE1:
5442                 adev->mp1_state = PP_MP1_STATE_SHUTDOWN;
5443                 break;
5444         case AMD_RESET_METHOD_MODE2:
5445                 adev->mp1_state = PP_MP1_STATE_RESET;
5446                 break;
5447         default:
5448                 adev->mp1_state = PP_MP1_STATE_NONE;
5449                 break;
5450         }
5451 }
5452
5453 static void amdgpu_device_unset_mp1_state(struct amdgpu_device *adev)
5454 {
5455         amdgpu_vf_error_trans_all(adev);
5456         adev->mp1_state = PP_MP1_STATE_NONE;
5457 }
5458
5459 static void amdgpu_device_resume_display_audio(struct amdgpu_device *adev)
5460 {
5461         struct pci_dev *p = NULL;
5462
5463         p = pci_get_domain_bus_and_slot(pci_domain_nr(adev->pdev->bus),
5464                         adev->pdev->bus->number, 1);
5465         if (p) {
5466                 pm_runtime_enable(&(p->dev));
5467                 pm_runtime_resume(&(p->dev));
5468         }
5469
5470         pci_dev_put(p);
5471 }
5472
5473 static int amdgpu_device_suspend_display_audio(struct amdgpu_device *adev)
5474 {
5475         enum amd_reset_method reset_method;
5476         struct pci_dev *p = NULL;
5477         u64 expires;
5478
5479         /*
5480          * For now, only BACO and mode1 reset are confirmed
5481          * to suffer the audio issue without proper suspended.
5482          */
5483         reset_method = amdgpu_asic_reset_method(adev);
5484         if ((reset_method != AMD_RESET_METHOD_BACO) &&
5485              (reset_method != AMD_RESET_METHOD_MODE1))
5486                 return -EINVAL;
5487
5488         p = pci_get_domain_bus_and_slot(pci_domain_nr(adev->pdev->bus),
5489                         adev->pdev->bus->number, 1);
5490         if (!p)
5491                 return -ENODEV;
5492
5493         expires = pm_runtime_autosuspend_expiration(&(p->dev));
5494         if (!expires)
5495                 /*
5496                  * If we cannot get the audio device autosuspend delay,
5497                  * a fixed 4S interval will be used. Considering 3S is
5498                  * the audio controller default autosuspend delay setting.
5499                  * 4S used here is guaranteed to cover that.
5500                  */
5501                 expires = ktime_get_mono_fast_ns() + NSEC_PER_SEC * 4ULL;
5502
5503         while (!pm_runtime_status_suspended(&(p->dev))) {
5504                 if (!pm_runtime_suspend(&(p->dev)))
5505                         break;
5506
5507                 if (expires < ktime_get_mono_fast_ns()) {
5508                         dev_warn(adev->dev, "failed to suspend display audio\n");
5509                         pci_dev_put(p);
5510                         /* TODO: abort the succeeding gpu reset? */
5511                         return -ETIMEDOUT;
5512                 }
5513         }
5514
5515         pm_runtime_disable(&(p->dev));
5516
5517         pci_dev_put(p);
5518         return 0;
5519 }
5520
5521 static inline void amdgpu_device_stop_pending_resets(struct amdgpu_device *adev)
5522 {
5523         struct amdgpu_ras *con = amdgpu_ras_get_context(adev);
5524
5525 #if defined(CONFIG_DEBUG_FS)
5526         if (!amdgpu_sriov_vf(adev))
5527                 cancel_work(&adev->reset_work);
5528 #endif
5529
5530         if (adev->kfd.dev)
5531                 cancel_work(&adev->kfd.reset_work);
5532
5533         if (amdgpu_sriov_vf(adev))
5534                 cancel_work(&adev->virt.flr_work);
5535
5536         if (con && adev->ras_enabled)
5537                 cancel_work(&con->recovery_work);
5538
5539 }
5540
5541 /**
5542  * amdgpu_device_gpu_recover - reset the asic and recover scheduler
5543  *
5544  * @adev: amdgpu_device pointer
5545  * @job: which job trigger hang
5546  * @reset_context: amdgpu reset context pointer
5547  *
5548  * Attempt to reset the GPU if it has hung (all asics).
5549  * Attempt to do soft-reset or full-reset and reinitialize Asic
5550  * Returns 0 for success or an error on failure.
5551  */
5552
5553 int amdgpu_device_gpu_recover(struct amdgpu_device *adev,
5554                               struct amdgpu_job *job,
5555                               struct amdgpu_reset_context *reset_context)
5556 {
5557         struct list_head device_list, *device_list_handle =  NULL;
5558         bool job_signaled = false;
5559         struct amdgpu_hive_info *hive = NULL;
5560         struct amdgpu_device *tmp_adev = NULL;
5561         int i, r = 0;
5562         bool need_emergency_restart = false;
5563         bool audio_suspended = false;
5564
5565         /*
5566          * Special case: RAS triggered and full reset isn't supported
5567          */
5568         need_emergency_restart = amdgpu_ras_need_emergency_restart(adev);
5569
5570         /*
5571          * Flush RAM to disk so that after reboot
5572          * the user can read log and see why the system rebooted.
5573          */
5574         if (need_emergency_restart && amdgpu_ras_get_context(adev) &&
5575                 amdgpu_ras_get_context(adev)->reboot) {
5576                 DRM_WARN("Emergency reboot.");
5577
5578                 ksys_sync_helper();
5579                 emergency_restart();
5580         }
5581
5582         dev_info(adev->dev, "GPU %s begin!\n",
5583                 need_emergency_restart ? "jobs stop":"reset");
5584
5585         if (!amdgpu_sriov_vf(adev))
5586                 hive = amdgpu_get_xgmi_hive(adev);
5587         if (hive)
5588                 mutex_lock(&hive->hive_lock);
5589
5590         reset_context->job = job;
5591         reset_context->hive = hive;
5592         /*
5593          * Build list of devices to reset.
5594          * In case we are in XGMI hive mode, resort the device list
5595          * to put adev in the 1st position.
5596          */
5597         INIT_LIST_HEAD(&device_list);
5598         if (!amdgpu_sriov_vf(adev) && (adev->gmc.xgmi.num_physical_nodes > 1)) {
5599                 list_for_each_entry(tmp_adev, &hive->device_list, gmc.xgmi.head) {
5600                         list_add_tail(&tmp_adev->reset_list, &device_list);
5601                         if (adev->shutdown)
5602                                 tmp_adev->shutdown = true;
5603                 }
5604                 if (!list_is_first(&adev->reset_list, &device_list))
5605                         list_rotate_to_front(&adev->reset_list, &device_list);
5606                 device_list_handle = &device_list;
5607         } else {
5608                 list_add_tail(&adev->reset_list, &device_list);
5609                 device_list_handle = &device_list;
5610         }
5611
5612         /* We need to lock reset domain only once both for XGMI and single device */
5613         tmp_adev = list_first_entry(device_list_handle, struct amdgpu_device,
5614                                     reset_list);
5615         amdgpu_device_lock_reset_domain(tmp_adev->reset_domain);
5616
5617         /* block all schedulers and reset given job's ring */
5618         list_for_each_entry(tmp_adev, device_list_handle, reset_list) {
5619
5620                 amdgpu_device_set_mp1_state(tmp_adev);
5621
5622                 /*
5623                  * Try to put the audio codec into suspend state
5624                  * before gpu reset started.
5625                  *
5626                  * Due to the power domain of the graphics device
5627                  * is shared with AZ power domain. Without this,
5628                  * we may change the audio hardware from behind
5629                  * the audio driver's back. That will trigger
5630                  * some audio codec errors.
5631                  */
5632                 if (!amdgpu_device_suspend_display_audio(tmp_adev))
5633                         audio_suspended = true;
5634
5635                 amdgpu_ras_set_error_query_ready(tmp_adev, false);
5636
5637                 cancel_delayed_work_sync(&tmp_adev->delayed_init_work);
5638
5639                 if (!amdgpu_sriov_vf(tmp_adev))
5640                         amdgpu_amdkfd_pre_reset(tmp_adev);
5641
5642                 /*
5643                  * Mark these ASICs to be reseted as untracked first
5644                  * And add them back after reset completed
5645                  */
5646                 amdgpu_unregister_gpu_instance(tmp_adev);
5647
5648                 drm_fb_helper_set_suspend_unlocked(adev_to_drm(tmp_adev)->fb_helper, true);
5649
5650                 /* disable ras on ALL IPs */
5651                 if (!need_emergency_restart &&
5652                       amdgpu_device_ip_need_full_reset(tmp_adev))
5653                         amdgpu_ras_suspend(tmp_adev);
5654
5655                 for (i = 0; i < AMDGPU_MAX_RINGS; ++i) {
5656                         struct amdgpu_ring *ring = tmp_adev->rings[i];
5657
5658                         if (!amdgpu_ring_sched_ready(ring))
5659                                 continue;
5660
5661                         drm_sched_stop(&ring->sched, job ? &job->base : NULL);
5662
5663                         if (need_emergency_restart)
5664                                 amdgpu_job_stop_all_jobs_on_sched(&ring->sched);
5665                 }
5666                 atomic_inc(&tmp_adev->gpu_reset_counter);
5667         }
5668
5669         if (need_emergency_restart)
5670                 goto skip_sched_resume;
5671
5672         /*
5673          * Must check guilty signal here since after this point all old
5674          * HW fences are force signaled.
5675          *
5676          * job->base holds a reference to parent fence
5677          */
5678         if (job && dma_fence_is_signaled(&job->hw_fence)) {
5679                 job_signaled = true;
5680                 dev_info(adev->dev, "Guilty job already signaled, skipping HW reset");
5681                 goto skip_hw_reset;
5682         }
5683
5684 retry:  /* Rest of adevs pre asic reset from XGMI hive. */
5685         list_for_each_entry(tmp_adev, device_list_handle, reset_list) {
5686                 r = amdgpu_device_pre_asic_reset(tmp_adev, reset_context);
5687                 /*TODO Should we stop ?*/
5688                 if (r) {
5689                         dev_err(tmp_adev->dev, "GPU pre asic reset failed with err, %d for drm dev, %s ",
5690                                   r, adev_to_drm(tmp_adev)->unique);
5691                         tmp_adev->asic_reset_res = r;
5692                 }
5693
5694                 /*
5695                  * Drop all pending non scheduler resets. Scheduler resets
5696                  * were already dropped during drm_sched_stop
5697                  */
5698                 amdgpu_device_stop_pending_resets(tmp_adev);
5699         }
5700
5701         /* Actual ASIC resets if needed.*/
5702         /* Host driver will handle XGMI hive reset for SRIOV */
5703         if (amdgpu_sriov_vf(adev)) {
5704                 r = amdgpu_device_reset_sriov(adev, job ? false : true);
5705                 if (r)
5706                         adev->asic_reset_res = r;
5707
5708                 /* Aldebaran and gfx_11_0_3 support ras in SRIOV, so need resume ras during reset */
5709                 if (amdgpu_ip_version(adev, GC_HWIP, 0) ==
5710                             IP_VERSION(9, 4, 2) ||
5711                     amdgpu_ip_version(adev, GC_HWIP, 0) == IP_VERSION(9, 4, 3) ||
5712                     amdgpu_ip_version(adev, GC_HWIP, 0) == IP_VERSION(11, 0, 3))
5713                         amdgpu_ras_resume(adev);
5714         } else {
5715                 r = amdgpu_do_asic_reset(device_list_handle, reset_context);
5716                 if (r && r == -EAGAIN)
5717                         goto retry;
5718         }
5719
5720 skip_hw_reset:
5721
5722         /* Post ASIC reset for all devs .*/
5723         list_for_each_entry(tmp_adev, device_list_handle, reset_list) {
5724
5725                 for (i = 0; i < AMDGPU_MAX_RINGS; ++i) {
5726                         struct amdgpu_ring *ring = tmp_adev->rings[i];
5727
5728                         if (!amdgpu_ring_sched_ready(ring))
5729                                 continue;
5730
5731                         drm_sched_start(&ring->sched, true);
5732                 }
5733
5734                 if (!drm_drv_uses_atomic_modeset(adev_to_drm(tmp_adev)) && !job_signaled)
5735                         drm_helper_resume_force_mode(adev_to_drm(tmp_adev));
5736
5737                 if (tmp_adev->asic_reset_res)
5738                         r = tmp_adev->asic_reset_res;
5739
5740                 tmp_adev->asic_reset_res = 0;
5741
5742                 if (r) {
5743                         /* bad news, how to tell it to userspace ? */
5744                         dev_info(tmp_adev->dev, "GPU reset(%d) failed\n", atomic_read(&tmp_adev->gpu_reset_counter));
5745                         amdgpu_vf_error_put(tmp_adev, AMDGIM_ERROR_VF_GPU_RESET_FAIL, 0, r);
5746                 } else {
5747                         dev_info(tmp_adev->dev, "GPU reset(%d) succeeded!\n", atomic_read(&tmp_adev->gpu_reset_counter));
5748                         if (amdgpu_acpi_smart_shift_update(adev_to_drm(tmp_adev), AMDGPU_SS_DEV_D0))
5749                                 DRM_WARN("smart shift update failed\n");
5750                 }
5751         }
5752
5753 skip_sched_resume:
5754         list_for_each_entry(tmp_adev, device_list_handle, reset_list) {
5755                 /* unlock kfd: SRIOV would do it separately */
5756                 if (!need_emergency_restart && !amdgpu_sriov_vf(tmp_adev))
5757                         amdgpu_amdkfd_post_reset(tmp_adev);
5758
5759                 /* kfd_post_reset will do nothing if kfd device is not initialized,
5760                  * need to bring up kfd here if it's not be initialized before
5761                  */
5762                 if (!adev->kfd.init_complete)
5763                         amdgpu_amdkfd_device_init(adev);
5764
5765                 if (audio_suspended)
5766                         amdgpu_device_resume_display_audio(tmp_adev);
5767
5768                 amdgpu_device_unset_mp1_state(tmp_adev);
5769
5770                 amdgpu_ras_set_error_query_ready(tmp_adev, true);
5771         }
5772
5773         tmp_adev = list_first_entry(device_list_handle, struct amdgpu_device,
5774                                             reset_list);
5775         amdgpu_device_unlock_reset_domain(tmp_adev->reset_domain);
5776
5777         if (hive) {
5778                 mutex_unlock(&hive->hive_lock);
5779                 amdgpu_put_xgmi_hive(hive);
5780         }
5781
5782         if (r)
5783                 dev_info(adev->dev, "GPU reset end with ret = %d\n", r);
5784
5785         atomic_set(&adev->reset_domain->reset_res, r);
5786         return r;
5787 }
5788
5789 /**
5790  * amdgpu_device_partner_bandwidth - find the bandwidth of appropriate partner
5791  *
5792  * @adev: amdgpu_device pointer
5793  * @speed: pointer to the speed of the link
5794  * @width: pointer to the width of the link
5795  *
5796  * Evaluate the hierarchy to find the speed and bandwidth capabilities of the
5797  * first physical partner to an AMD dGPU.
5798  * This will exclude any virtual switches and links.
5799  */
5800 static void amdgpu_device_partner_bandwidth(struct amdgpu_device *adev,
5801                                             enum pci_bus_speed *speed,
5802                                             enum pcie_link_width *width)
5803 {
5804         struct pci_dev *parent = adev->pdev;
5805
5806         if (!speed || !width)
5807                 return;
5808
5809         *speed = PCI_SPEED_UNKNOWN;
5810         *width = PCIE_LNK_WIDTH_UNKNOWN;
5811
5812         while ((parent = pci_upstream_bridge(parent))) {
5813                 /* skip upstream/downstream switches internal to dGPU*/
5814                 if (parent->vendor == PCI_VENDOR_ID_ATI)
5815                         continue;
5816                 *speed = pcie_get_speed_cap(parent);
5817                 *width = pcie_get_width_cap(parent);
5818                 break;
5819         }
5820 }
5821
5822 /**
5823  * amdgpu_device_get_pcie_info - fence pcie info about the PCIE slot
5824  *
5825  * @adev: amdgpu_device pointer
5826  *
5827  * Fetchs and stores in the driver the PCIE capabilities (gen speed
5828  * and lanes) of the slot the device is in. Handles APUs and
5829  * virtualized environments where PCIE config space may not be available.
5830  */
5831 static void amdgpu_device_get_pcie_info(struct amdgpu_device *adev)
5832 {
5833         struct pci_dev *pdev;
5834         enum pci_bus_speed speed_cap, platform_speed_cap;
5835         enum pcie_link_width platform_link_width;
5836
5837         if (amdgpu_pcie_gen_cap)
5838                 adev->pm.pcie_gen_mask = amdgpu_pcie_gen_cap;
5839
5840         if (amdgpu_pcie_lane_cap)
5841                 adev->pm.pcie_mlw_mask = amdgpu_pcie_lane_cap;
5842
5843         /* covers APUs as well */
5844         if (pci_is_root_bus(adev->pdev->bus) && !amdgpu_passthrough(adev)) {
5845                 if (adev->pm.pcie_gen_mask == 0)
5846                         adev->pm.pcie_gen_mask = AMDGPU_DEFAULT_PCIE_GEN_MASK;
5847                 if (adev->pm.pcie_mlw_mask == 0)
5848                         adev->pm.pcie_mlw_mask = AMDGPU_DEFAULT_PCIE_MLW_MASK;
5849                 return;
5850         }
5851
5852         if (adev->pm.pcie_gen_mask && adev->pm.pcie_mlw_mask)
5853                 return;
5854
5855         amdgpu_device_partner_bandwidth(adev, &platform_speed_cap,
5856                                         &platform_link_width);
5857
5858         if (adev->pm.pcie_gen_mask == 0) {
5859                 /* asic caps */
5860                 pdev = adev->pdev;
5861                 speed_cap = pcie_get_speed_cap(pdev);
5862                 if (speed_cap == PCI_SPEED_UNKNOWN) {
5863                         adev->pm.pcie_gen_mask |= (CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN1 |
5864                                                   CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN2 |
5865                                                   CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN3);
5866                 } else {
5867                         if (speed_cap == PCIE_SPEED_32_0GT)
5868                                 adev->pm.pcie_gen_mask |= (CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN1 |
5869                                                           CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN2 |
5870                                                           CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN3 |
5871                                                           CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN4 |
5872                                                           CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN5);
5873                         else if (speed_cap == PCIE_SPEED_16_0GT)
5874                                 adev->pm.pcie_gen_mask |= (CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN1 |
5875                                                           CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN2 |
5876                                                           CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN3 |
5877                                                           CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN4);
5878                         else if (speed_cap == PCIE_SPEED_8_0GT)
5879                                 adev->pm.pcie_gen_mask |= (CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN1 |
5880                                                           CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN2 |
5881                                                           CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN3);
5882                         else if (speed_cap == PCIE_SPEED_5_0GT)
5883                                 adev->pm.pcie_gen_mask |= (CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN1 |
5884                                                           CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN2);
5885                         else
5886                                 adev->pm.pcie_gen_mask |= CAIL_ASIC_PCIE_LINK_SPEED_SUPPORT_GEN1;
5887                 }
5888                 /* platform caps */
5889                 if (platform_speed_cap == PCI_SPEED_UNKNOWN) {
5890                         adev->pm.pcie_gen_mask |= (CAIL_PCIE_LINK_SPEED_SUPPORT_GEN1 |
5891                                                    CAIL_PCIE_LINK_SPEED_SUPPORT_GEN2);
5892                 } else {
5893                         if (platform_speed_cap == PCIE_SPEED_32_0GT)
5894                                 adev->pm.pcie_gen_mask |= (CAIL_PCIE_LINK_SPEED_SUPPORT_GEN1 |
5895                                                            CAIL_PCIE_LINK_SPEED_SUPPORT_GEN2 |
5896                                                            CAIL_PCIE_LINK_SPEED_SUPPORT_GEN3 |
5897                                                            CAIL_PCIE_LINK_SPEED_SUPPORT_GEN4 |
5898                                                            CAIL_PCIE_LINK_SPEED_SUPPORT_GEN5);
5899                         else if (platform_speed_cap == PCIE_SPEED_16_0GT)
5900                                 adev->pm.pcie_gen_mask |= (CAIL_PCIE_LINK_SPEED_SUPPORT_GEN1 |
5901                                                            CAIL_PCIE_LINK_SPEED_SUPPORT_GEN2 |
5902                                                            CAIL_PCIE_LINK_SPEED_SUPPORT_GEN3 |
5903                                                            CAIL_PCIE_LINK_SPEED_SUPPORT_GEN4);
5904                         else if (platform_speed_cap == PCIE_SPEED_8_0GT)
5905                                 adev->pm.pcie_gen_mask |= (CAIL_PCIE_LINK_SPEED_SUPPORT_GEN1 |
5906                                                            CAIL_PCIE_LINK_SPEED_SUPPORT_GEN2 |
5907                                                            CAIL_PCIE_LINK_SPEED_SUPPORT_GEN3);
5908                         else if (platform_speed_cap == PCIE_SPEED_5_0GT)
5909                                 adev->pm.pcie_gen_mask |= (CAIL_PCIE_LINK_SPEED_SUPPORT_GEN1 |
5910                                                            CAIL_PCIE_LINK_SPEED_SUPPORT_GEN2);
5911                         else
5912                                 adev->pm.pcie_gen_mask |= CAIL_PCIE_LINK_SPEED_SUPPORT_GEN1;
5913
5914                 }
5915         }
5916         if (adev->pm.pcie_mlw_mask == 0) {
5917                 if (platform_link_width == PCIE_LNK_WIDTH_UNKNOWN) {
5918                         adev->pm.pcie_mlw_mask |= AMDGPU_DEFAULT_PCIE_MLW_MASK;
5919                 } else {
5920                         switch (platform_link_width) {
5921                         case PCIE_LNK_X32:
5922                                 adev->pm.pcie_mlw_mask = (CAIL_PCIE_LINK_WIDTH_SUPPORT_X32 |
5923                                                           CAIL_PCIE_LINK_WIDTH_SUPPORT_X16 |
5924                                                           CAIL_PCIE_LINK_WIDTH_SUPPORT_X12 |
5925                                                           CAIL_PCIE_LINK_WIDTH_SUPPORT_X8 |
5926                                                           CAIL_PCIE_LINK_WIDTH_SUPPORT_X4 |
5927                                                           CAIL_PCIE_LINK_WIDTH_SUPPORT_X2 |
5928                                                           CAIL_PCIE_LINK_WIDTH_SUPPORT_X1);
5929                                 break;
5930                         case PCIE_LNK_X16:
5931                                 adev->pm.pcie_mlw_mask = (CAIL_PCIE_LINK_WIDTH_SUPPORT_X16 |
5932                                                           CAIL_PCIE_LINK_WIDTH_SUPPORT_X12 |
5933                                                           CAIL_PCIE_LINK_WIDTH_SUPPORT_X8 |
5934                                                           CAIL_PCIE_LINK_WIDTH_SUPPORT_X4 |
5935                                                           CAIL_PCIE_LINK_WIDTH_SUPPORT_X2 |
5936                                                           CAIL_PCIE_LINK_WIDTH_SUPPORT_X1);
5937                                 break;
5938                         case PCIE_LNK_X12:
5939                                 adev->pm.pcie_mlw_mask = (CAIL_PCIE_LINK_WIDTH_SUPPORT_X12 |
5940                                                           CAIL_PCIE_LINK_WIDTH_SUPPORT_X8 |
5941                                                           CAIL_PCIE_LINK_WIDTH_SUPPORT_X4 |
5942                                                           CAIL_PCIE_LINK_WIDTH_SUPPORT_X2 |
5943                                                           CAIL_PCIE_LINK_WIDTH_SUPPORT_X1);
5944                                 break;
5945                         case PCIE_LNK_X8:
5946                                 adev->pm.pcie_mlw_mask = (CAIL_PCIE_LINK_WIDTH_SUPPORT_X8 |
5947                                                           CAIL_PCIE_LINK_WIDTH_SUPPORT_X4 |
5948                                                           CAIL_PCIE_LINK_WIDTH_SUPPORT_X2 |
5949                                                           CAIL_PCIE_LINK_WIDTH_SUPPORT_X1);
5950                                 break;
5951                         case PCIE_LNK_X4:
5952                                 adev->pm.pcie_mlw_mask = (CAIL_PCIE_LINK_WIDTH_SUPPORT_X4 |
5953                                                           CAIL_PCIE_LINK_WIDTH_SUPPORT_X2 |
5954                                                           CAIL_PCIE_LINK_WIDTH_SUPPORT_X1);
5955                                 break;
5956                         case PCIE_LNK_X2:
5957                                 adev->pm.pcie_mlw_mask = (CAIL_PCIE_LINK_WIDTH_SUPPORT_X2 |
5958                                                           CAIL_PCIE_LINK_WIDTH_SUPPORT_X1);
5959                                 break;
5960                         case PCIE_LNK_X1:
5961                                 adev->pm.pcie_mlw_mask = CAIL_PCIE_LINK_WIDTH_SUPPORT_X1;
5962                                 break;
5963                         default:
5964                                 break;
5965                         }
5966                 }
5967         }
5968 }
5969
5970 /**
5971  * amdgpu_device_is_peer_accessible - Check peer access through PCIe BAR
5972  *
5973  * @adev: amdgpu_device pointer
5974  * @peer_adev: amdgpu_device pointer for peer device trying to access @adev
5975  *
5976  * Return true if @peer_adev can access (DMA) @adev through the PCIe
5977  * BAR, i.e. @adev is "large BAR" and the BAR matches the DMA mask of
5978  * @peer_adev.
5979  */
5980 bool amdgpu_device_is_peer_accessible(struct amdgpu_device *adev,
5981                                       struct amdgpu_device *peer_adev)
5982 {
5983 #ifdef CONFIG_HSA_AMD_P2P
5984         uint64_t address_mask = peer_adev->dev->dma_mask ?
5985                 ~*peer_adev->dev->dma_mask : ~((1ULL << 32) - 1);
5986         resource_size_t aper_limit =
5987                 adev->gmc.aper_base + adev->gmc.aper_size - 1;
5988         bool p2p_access =
5989                 !adev->gmc.xgmi.connected_to_cpu &&
5990                 !(pci_p2pdma_distance(adev->pdev, peer_adev->dev, false) < 0);
5991
5992         return pcie_p2p && p2p_access && (adev->gmc.visible_vram_size &&
5993                 adev->gmc.real_vram_size == adev->gmc.visible_vram_size &&
5994                 !(adev->gmc.aper_base & address_mask ||
5995                   aper_limit & address_mask));
5996 #else
5997         return false;
5998 #endif
5999 }
6000
6001 int amdgpu_device_baco_enter(struct drm_device *dev)
6002 {
6003         struct amdgpu_device *adev = drm_to_adev(dev);
6004         struct amdgpu_ras *ras = amdgpu_ras_get_context(adev);
6005
6006         if (!amdgpu_device_supports_baco(dev))
6007                 return -ENOTSUPP;
6008
6009         if (ras && adev->ras_enabled &&
6010             adev->nbio.funcs->enable_doorbell_interrupt)
6011                 adev->nbio.funcs->enable_doorbell_interrupt(adev, false);
6012
6013         return amdgpu_dpm_baco_enter(adev);
6014 }
6015
6016 int amdgpu_device_baco_exit(struct drm_device *dev)
6017 {
6018         struct amdgpu_device *adev = drm_to_adev(dev);
6019         struct amdgpu_ras *ras = amdgpu_ras_get_context(adev);
6020         int ret = 0;
6021
6022         if (!amdgpu_device_supports_baco(dev))
6023                 return -ENOTSUPP;
6024
6025         ret = amdgpu_dpm_baco_exit(adev);
6026         if (ret)
6027                 return ret;
6028
6029         if (ras && adev->ras_enabled &&
6030             adev->nbio.funcs->enable_doorbell_interrupt)
6031                 adev->nbio.funcs->enable_doorbell_interrupt(adev, true);
6032
6033         if (amdgpu_passthrough(adev) &&
6034             adev->nbio.funcs->clear_doorbell_interrupt)
6035                 adev->nbio.funcs->clear_doorbell_interrupt(adev);
6036
6037         return 0;
6038 }
6039
6040 /**
6041  * amdgpu_pci_error_detected - Called when a PCI error is detected.
6042  * @pdev: PCI device struct
6043  * @state: PCI channel state
6044  *
6045  * Description: Called when a PCI error is detected.
6046  *
6047  * Return: PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT.
6048  */
6049 pci_ers_result_t amdgpu_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
6050 {
6051         struct drm_device *dev = pci_get_drvdata(pdev);
6052         struct amdgpu_device *adev = drm_to_adev(dev);
6053         int i;
6054
6055         DRM_INFO("PCI error: detected callback, state(%d)!!\n", state);
6056
6057         if (adev->gmc.xgmi.num_physical_nodes > 1) {
6058                 DRM_WARN("No support for XGMI hive yet...");
6059                 return PCI_ERS_RESULT_DISCONNECT;
6060         }
6061
6062         adev->pci_channel_state = state;
6063
6064         switch (state) {
6065         case pci_channel_io_normal:
6066                 return PCI_ERS_RESULT_CAN_RECOVER;
6067         /* Fatal error, prepare for slot reset */
6068         case pci_channel_io_frozen:
6069                 /*
6070                  * Locking adev->reset_domain->sem will prevent any external access
6071                  * to GPU during PCI error recovery
6072                  */
6073                 amdgpu_device_lock_reset_domain(adev->reset_domain);
6074                 amdgpu_device_set_mp1_state(adev);
6075
6076                 /*
6077                  * Block any work scheduling as we do for regular GPU reset
6078                  * for the duration of the recovery
6079                  */
6080                 for (i = 0; i < AMDGPU_MAX_RINGS; ++i) {
6081                         struct amdgpu_ring *ring = adev->rings[i];
6082
6083                         if (!amdgpu_ring_sched_ready(ring))
6084                                 continue;
6085
6086                         drm_sched_stop(&ring->sched, NULL);
6087                 }
6088                 atomic_inc(&adev->gpu_reset_counter);
6089                 return PCI_ERS_RESULT_NEED_RESET;
6090         case pci_channel_io_perm_failure:
6091                 /* Permanent error, prepare for device removal */
6092                 return PCI_ERS_RESULT_DISCONNECT;
6093         }
6094
6095         return PCI_ERS_RESULT_NEED_RESET;
6096 }
6097
6098 /**
6099  * amdgpu_pci_mmio_enabled - Enable MMIO and dump debug registers
6100  * @pdev: pointer to PCI device
6101  */
6102 pci_ers_result_t amdgpu_pci_mmio_enabled(struct pci_dev *pdev)
6103 {
6104
6105         DRM_INFO("PCI error: mmio enabled callback!!\n");
6106
6107         /* TODO - dump whatever for debugging purposes */
6108
6109         /* This called only if amdgpu_pci_error_detected returns
6110          * PCI_ERS_RESULT_CAN_RECOVER. Read/write to the device still
6111          * works, no need to reset slot.
6112          */
6113
6114         return PCI_ERS_RESULT_RECOVERED;
6115 }
6116
6117 /**
6118  * amdgpu_pci_slot_reset - Called when PCI slot has been reset.
6119  * @pdev: PCI device struct
6120  *
6121  * Description: This routine is called by the pci error recovery
6122  * code after the PCI slot has been reset, just before we
6123  * should resume normal operations.
6124  */
6125 pci_ers_result_t amdgpu_pci_slot_reset(struct pci_dev *pdev)
6126 {
6127         struct drm_device *dev = pci_get_drvdata(pdev);
6128         struct amdgpu_device *adev = drm_to_adev(dev);
6129         int r, i;
6130         struct amdgpu_reset_context reset_context;
6131         u32 memsize;
6132         struct list_head device_list;
6133         struct amdgpu_hive_info *hive;
6134         int hive_ras_recovery = 0;
6135         struct amdgpu_ras *ras;
6136
6137         /* PCI error slot reset should be skipped During RAS recovery */
6138         hive = amdgpu_get_xgmi_hive(adev);
6139         if (hive) {
6140                 hive_ras_recovery = atomic_read(&hive->ras_recovery);
6141                 amdgpu_put_xgmi_hive(hive);
6142         }
6143         ras = amdgpu_ras_get_context(adev);
6144         if ((amdgpu_ip_version(adev, GC_HWIP, 0) == IP_VERSION(9, 4, 3)) &&
6145                  ras && (atomic_read(&ras->in_recovery) || hive_ras_recovery))
6146                 return PCI_ERS_RESULT_RECOVERED;
6147
6148         DRM_INFO("PCI error: slot reset callback!!\n");
6149
6150         memset(&reset_context, 0, sizeof(reset_context));
6151
6152         INIT_LIST_HEAD(&device_list);
6153         list_add_tail(&adev->reset_list, &device_list);
6154
6155         /* wait for asic to come out of reset */
6156         msleep(500);
6157
6158         /* Restore PCI confspace */
6159         amdgpu_device_load_pci_state(pdev);
6160
6161         /* confirm  ASIC came out of reset */
6162         for (i = 0; i < adev->usec_timeout; i++) {
6163                 memsize = amdgpu_asic_get_config_memsize(adev);
6164
6165                 if (memsize != 0xffffffff)
6166                         break;
6167                 udelay(1);
6168         }
6169         if (memsize == 0xffffffff) {
6170                 r = -ETIME;
6171                 goto out;
6172         }
6173
6174         reset_context.method = AMD_RESET_METHOD_NONE;
6175         reset_context.reset_req_dev = adev;
6176         set_bit(AMDGPU_NEED_FULL_RESET, &reset_context.flags);
6177         set_bit(AMDGPU_SKIP_HW_RESET, &reset_context.flags);
6178
6179         adev->no_hw_access = true;
6180         r = amdgpu_device_pre_asic_reset(adev, &reset_context);
6181         adev->no_hw_access = false;
6182         if (r)
6183                 goto out;
6184
6185         r = amdgpu_do_asic_reset(&device_list, &reset_context);
6186
6187 out:
6188         if (!r) {
6189                 if (amdgpu_device_cache_pci_state(adev->pdev))
6190                         pci_restore_state(adev->pdev);
6191
6192                 DRM_INFO("PCIe error recovery succeeded\n");
6193         } else {
6194                 DRM_ERROR("PCIe error recovery failed, err:%d", r);
6195                 amdgpu_device_unset_mp1_state(adev);
6196                 amdgpu_device_unlock_reset_domain(adev->reset_domain);
6197         }
6198
6199         return r ? PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_RECOVERED;
6200 }
6201
6202 /**
6203  * amdgpu_pci_resume() - resume normal ops after PCI reset
6204  * @pdev: pointer to PCI device
6205  *
6206  * Called when the error recovery driver tells us that its
6207  * OK to resume normal operation.
6208  */
6209 void amdgpu_pci_resume(struct pci_dev *pdev)
6210 {
6211         struct drm_device *dev = pci_get_drvdata(pdev);
6212         struct amdgpu_device *adev = drm_to_adev(dev);
6213         int i;
6214
6215
6216         DRM_INFO("PCI error: resume callback!!\n");
6217
6218         /* Only continue execution for the case of pci_channel_io_frozen */
6219         if (adev->pci_channel_state != pci_channel_io_frozen)
6220                 return;
6221
6222         for (i = 0; i < AMDGPU_MAX_RINGS; ++i) {
6223                 struct amdgpu_ring *ring = adev->rings[i];
6224
6225                 if (!amdgpu_ring_sched_ready(ring))
6226                         continue;
6227
6228                 drm_sched_start(&ring->sched, true);
6229         }
6230
6231         amdgpu_device_unset_mp1_state(adev);
6232         amdgpu_device_unlock_reset_domain(adev->reset_domain);
6233 }
6234
6235 bool amdgpu_device_cache_pci_state(struct pci_dev *pdev)
6236 {
6237         struct drm_device *dev = pci_get_drvdata(pdev);
6238         struct amdgpu_device *adev = drm_to_adev(dev);
6239         int r;
6240
6241         r = pci_save_state(pdev);
6242         if (!r) {
6243                 kfree(adev->pci_state);
6244
6245                 adev->pci_state = pci_store_saved_state(pdev);
6246
6247                 if (!adev->pci_state) {
6248                         DRM_ERROR("Failed to store PCI saved state");
6249                         return false;
6250                 }
6251         } else {
6252                 DRM_WARN("Failed to save PCI state, err:%d\n", r);
6253                 return false;
6254         }
6255
6256         return true;
6257 }
6258
6259 bool amdgpu_device_load_pci_state(struct pci_dev *pdev)
6260 {
6261         struct drm_device *dev = pci_get_drvdata(pdev);
6262         struct amdgpu_device *adev = drm_to_adev(dev);
6263         int r;
6264
6265         if (!adev->pci_state)
6266                 return false;
6267
6268         r = pci_load_saved_state(pdev, adev->pci_state);
6269
6270         if (!r) {
6271                 pci_restore_state(pdev);
6272         } else {
6273                 DRM_WARN("Failed to load PCI state, err:%d\n", r);
6274                 return false;
6275         }
6276
6277         return true;
6278 }
6279
6280 void amdgpu_device_flush_hdp(struct amdgpu_device *adev,
6281                 struct amdgpu_ring *ring)
6282 {
6283 #ifdef CONFIG_X86_64
6284         if ((adev->flags & AMD_IS_APU) && !amdgpu_passthrough(adev))
6285                 return;
6286 #endif
6287         if (adev->gmc.xgmi.connected_to_cpu)
6288                 return;
6289
6290         if (ring && ring->funcs->emit_hdp_flush)
6291                 amdgpu_ring_emit_hdp_flush(ring);
6292         else
6293                 amdgpu_asic_flush_hdp(adev, ring);
6294 }
6295
6296 void amdgpu_device_invalidate_hdp(struct amdgpu_device *adev,
6297                 struct amdgpu_ring *ring)
6298 {
6299 #ifdef CONFIG_X86_64
6300         if ((adev->flags & AMD_IS_APU) && !amdgpu_passthrough(adev))
6301                 return;
6302 #endif
6303         if (adev->gmc.xgmi.connected_to_cpu)
6304                 return;
6305
6306         amdgpu_asic_invalidate_hdp(adev, ring);
6307 }
6308
6309 int amdgpu_in_reset(struct amdgpu_device *adev)
6310 {
6311         return atomic_read(&adev->reset_domain->in_gpu_reset);
6312 }
6313
6314 /**
6315  * amdgpu_device_halt() - bring hardware to some kind of halt state
6316  *
6317  * @adev: amdgpu_device pointer
6318  *
6319  * Bring hardware to some kind of halt state so that no one can touch it
6320  * any more. It will help to maintain error context when error occurred.
6321  * Compare to a simple hang, the system will keep stable at least for SSH
6322  * access. Then it should be trivial to inspect the hardware state and
6323  * see what's going on. Implemented as following:
6324  *
6325  * 1. drm_dev_unplug() makes device inaccessible to user space(IOCTLs, etc),
6326  *    clears all CPU mappings to device, disallows remappings through page faults
6327  * 2. amdgpu_irq_disable_all() disables all interrupts
6328  * 3. amdgpu_fence_driver_hw_fini() signals all HW fences
6329  * 4. set adev->no_hw_access to avoid potential crashes after setp 5
6330  * 5. amdgpu_device_unmap_mmio() clears all MMIO mappings
6331  * 6. pci_disable_device() and pci_wait_for_pending_transaction()
6332  *    flush any in flight DMA operations
6333  */
6334 void amdgpu_device_halt(struct amdgpu_device *adev)
6335 {
6336         struct pci_dev *pdev = adev->pdev;
6337         struct drm_device *ddev = adev_to_drm(adev);
6338
6339         amdgpu_xcp_dev_unplug(adev);
6340         drm_dev_unplug(ddev);
6341
6342         amdgpu_irq_disable_all(adev);
6343
6344         amdgpu_fence_driver_hw_fini(adev);
6345
6346         adev->no_hw_access = true;
6347
6348         amdgpu_device_unmap_mmio(adev);
6349
6350         pci_disable_device(pdev);
6351         pci_wait_for_pending_transaction(pdev);
6352 }
6353
6354 u32 amdgpu_device_pcie_port_rreg(struct amdgpu_device *adev,
6355                                 u32 reg)
6356 {
6357         unsigned long flags, address, data;
6358         u32 r;
6359
6360         address = adev->nbio.funcs->get_pcie_port_index_offset(adev);
6361         data = adev->nbio.funcs->get_pcie_port_data_offset(adev);
6362
6363         spin_lock_irqsave(&adev->pcie_idx_lock, flags);
6364         WREG32(address, reg * 4);
6365         (void)RREG32(address);
6366         r = RREG32(data);
6367         spin_unlock_irqrestore(&adev->pcie_idx_lock, flags);
6368         return r;
6369 }
6370
6371 void amdgpu_device_pcie_port_wreg(struct amdgpu_device *adev,
6372                                 u32 reg, u32 v)
6373 {
6374         unsigned long flags, address, data;
6375
6376         address = adev->nbio.funcs->get_pcie_port_index_offset(adev);
6377         data = adev->nbio.funcs->get_pcie_port_data_offset(adev);
6378
6379         spin_lock_irqsave(&adev->pcie_idx_lock, flags);
6380         WREG32(address, reg * 4);
6381         (void)RREG32(address);
6382         WREG32(data, v);
6383         (void)RREG32(data);
6384         spin_unlock_irqrestore(&adev->pcie_idx_lock, flags);
6385 }
6386
6387 /**
6388  * amdgpu_device_switch_gang - switch to a new gang
6389  * @adev: amdgpu_device pointer
6390  * @gang: the gang to switch to
6391  *
6392  * Try to switch to a new gang.
6393  * Returns: NULL if we switched to the new gang or a reference to the current
6394  * gang leader.
6395  */
6396 struct dma_fence *amdgpu_device_switch_gang(struct amdgpu_device *adev,
6397                                             struct dma_fence *gang)
6398 {
6399         struct dma_fence *old = NULL;
6400
6401         do {
6402                 dma_fence_put(old);
6403                 rcu_read_lock();
6404                 old = dma_fence_get_rcu_safe(&adev->gang_submit);
6405                 rcu_read_unlock();
6406
6407                 if (old == gang)
6408                         break;
6409
6410                 if (!dma_fence_is_signaled(old))
6411                         return old;
6412
6413         } while (cmpxchg((struct dma_fence __force **)&adev->gang_submit,
6414                          old, gang) != old);
6415
6416         dma_fence_put(old);
6417         return NULL;
6418 }
6419
6420 bool amdgpu_device_has_display_hardware(struct amdgpu_device *adev)
6421 {
6422         switch (adev->asic_type) {
6423 #ifdef CONFIG_DRM_AMDGPU_SI
6424         case CHIP_HAINAN:
6425 #endif
6426         case CHIP_TOPAZ:
6427                 /* chips with no display hardware */
6428                 return false;
6429 #ifdef CONFIG_DRM_AMDGPU_SI
6430         case CHIP_TAHITI:
6431         case CHIP_PITCAIRN:
6432         case CHIP_VERDE:
6433         case CHIP_OLAND:
6434 #endif
6435 #ifdef CONFIG_DRM_AMDGPU_CIK
6436         case CHIP_BONAIRE:
6437         case CHIP_HAWAII:
6438         case CHIP_KAVERI:
6439         case CHIP_KABINI:
6440         case CHIP_MULLINS:
6441 #endif
6442         case CHIP_TONGA:
6443         case CHIP_FIJI:
6444         case CHIP_POLARIS10:
6445         case CHIP_POLARIS11:
6446         case CHIP_POLARIS12:
6447         case CHIP_VEGAM:
6448         case CHIP_CARRIZO:
6449         case CHIP_STONEY:
6450                 /* chips with display hardware */
6451                 return true;
6452         default:
6453                 /* IP discovery */
6454                 if (!amdgpu_ip_version(adev, DCE_HWIP, 0) ||
6455                     (adev->harvest_ip_mask & AMD_HARVEST_IP_DMU_MASK))
6456                         return false;
6457                 return true;
6458         }
6459 }
6460
6461 uint32_t amdgpu_device_wait_on_rreg(struct amdgpu_device *adev,
6462                 uint32_t inst, uint32_t reg_addr, char reg_name[],
6463                 uint32_t expected_value, uint32_t mask)
6464 {
6465         uint32_t ret = 0;
6466         uint32_t old_ = 0;
6467         uint32_t tmp_ = RREG32(reg_addr);
6468         uint32_t loop = adev->usec_timeout;
6469
6470         while ((tmp_ & (mask)) != (expected_value)) {
6471                 if (old_ != tmp_) {
6472                         loop = adev->usec_timeout;
6473                         old_ = tmp_;
6474                 } else
6475                         udelay(1);
6476                 tmp_ = RREG32(reg_addr);
6477                 loop--;
6478                 if (!loop) {
6479                         DRM_WARN("Register(%d) [%s] failed to reach value 0x%08x != 0x%08xn",
6480                                   inst, reg_name, (uint32_t)expected_value,
6481                                   (uint32_t)(tmp_ & (mask)));
6482                         ret = -ETIMEDOUT;
6483                         break;
6484                 }
6485         }
6486         return ret;
6487 }