drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c

   1 /*
   2  * Copyright 2014 Advanced Micro Devices, Inc.
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice shall be included in
  12  * all copies or substantial portions of the Software.
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  20  * OTHER DEALINGS IN THE SOFTWARE.
  21  *
  22  */
  23
  24 #include <linux/firmware.h>
  25 #include <linux/module.h>
  26 #include <linux/pci.h>
  27
  28 #include <drm/drm_cache.h>
  29 #include "amdgpu.h"
  30 #include "cikd.h"
  31 #include "cik.h"
  32 #include "gmc_v7_0.h"
  33 #include "amdgpu_ucode.h"
  34 #include "amdgpu_amdkfd.h"
  35 #include "amdgpu_gem.h"
  36
  37 #include "bif/bif_4_1_d.h"
  38 #include "bif/bif_4_1_sh_mask.h"
  39
  40 #include "gmc/gmc_7_1_d.h"
  41 #include "gmc/gmc_7_1_sh_mask.h"
  42
  43 #include "oss/oss_2_0_d.h"
  44 #include "oss/oss_2_0_sh_mask.h"
  45
  46 #include "dce/dce_8_0_d.h"
  47 #include "dce/dce_8_0_sh_mask.h"
  48
  49 #include "amdgpu_atombios.h"
  50
  51 #include "ivsrcid/ivsrcid_vislands30.h"
  52
  53 static void gmc_v7_0_set_gmc_funcs(struct amdgpu_device *adev);
  54 static void gmc_v7_0_set_irq_funcs(struct amdgpu_device *adev);
  55 static int gmc_v7_0_wait_for_idle(void *handle);
  56
  57 MODULE_FIRMWARE("amdgpu/bonaire_mc.bin");
  58 MODULE_FIRMWARE("amdgpu/hawaii_mc.bin");
  59 MODULE_FIRMWARE("amdgpu/topaz_mc.bin");
  60
  61 static const u32 golden_settings_iceland_a11[] = {
  62         mmVM_PRT_APERTURE0_LOW_ADDR, 0x0fffffff, 0x0fffffff,
  63         mmVM_PRT_APERTURE1_LOW_ADDR, 0x0fffffff, 0x0fffffff,
  64         mmVM_PRT_APERTURE2_LOW_ADDR, 0x0fffffff, 0x0fffffff,
  65         mmVM_PRT_APERTURE3_LOW_ADDR, 0x0fffffff, 0x0fffffff
  66 };
  67
  68 static const u32 iceland_mgcg_cgcg_init[] = {
  69         mmMC_MEM_POWER_LS, 0xffffffff, 0x00000104
  70 };
  71
  72 static void gmc_v7_0_init_golden_registers(struct amdgpu_device *adev)
  73 {
  74         switch (adev->asic_type) {
  75         case CHIP_TOPAZ:
  76                 amdgpu_device_program_register_sequence(adev,
  77                                                         iceland_mgcg_cgcg_init,
  78                                                         ARRAY_SIZE(iceland_mgcg_cgcg_init));
  79                 amdgpu_device_program_register_sequence(adev,
  80                                                         golden_settings_iceland_a11,
  81                                                         ARRAY_SIZE(golden_settings_iceland_a11));
  82                 break;
  83         default:
  84                 break;
  85         }
  86 }
  87
  88 static void gmc_v7_0_mc_stop(struct amdgpu_device *adev)
  89 {
  90         u32 blackout;
  91
  92         gmc_v7_0_wait_for_idle((void *)adev);
  93
  94         blackout = RREG32(mmMC_SHARED_BLACKOUT_CNTL);
  95         if (REG_GET_FIELD(blackout, MC_SHARED_BLACKOUT_CNTL, BLACKOUT_MODE) != 1) {
  96                 /* Block CPU access */
  97                 WREG32(mmBIF_FB_EN, 0);
  98                 /* blackout the MC */
  99                 blackout = REG_SET_FIELD(blackout,
 100                                          MC_SHARED_BLACKOUT_CNTL, BLACKOUT_MODE, 0);
 101                 WREG32(mmMC_SHARED_BLACKOUT_CNTL, blackout | 1);
 102         }
 103         /* wait for the MC to settle */
 104         udelay(100);
 105 }
 106
 107 static void gmc_v7_0_mc_resume(struct amdgpu_device *adev)
 108 {
 109         u32 tmp;
 110
 111         /* unblackout the MC */
 112         tmp = RREG32(mmMC_SHARED_BLACKOUT_CNTL);
 113         tmp = REG_SET_FIELD(tmp, MC_SHARED_BLACKOUT_CNTL, BLACKOUT_MODE, 0);
 114         WREG32(mmMC_SHARED_BLACKOUT_CNTL, tmp);
 115         /* allow CPU access */
 116         tmp = REG_SET_FIELD(0, BIF_FB_EN, FB_READ_EN, 1);
 117         tmp = REG_SET_FIELD(tmp, BIF_FB_EN, FB_WRITE_EN, 1);
 118         WREG32(mmBIF_FB_EN, tmp);
 119 }
 120
 121 /**
 122  * gmc_v7_0_init_microcode - load ucode images from disk
 123  *
 124  * @adev: amdgpu_device pointer
 125  *
 126  * Use the firmware interface to load the ucode images into
 127  * the driver (not loaded into hw).
 128  * Returns 0 on success, error on failure.
 129  */
 130 static int gmc_v7_0_init_microcode(struct amdgpu_device *adev)
 131 {
 132         const char *chip_name;
 133         char fw_name[30];
 134         int err;
 135
 136         DRM_DEBUG("\n");
 137
 138         switch (adev->asic_type) {
 139         case CHIP_BONAIRE:
 140                 chip_name = "bonaire";
 141                 break;
 142         case CHIP_HAWAII:
 143                 chip_name = "hawaii";
 144                 break;
 145         case CHIP_TOPAZ:
 146                 chip_name = "topaz";
 147                 break;
 148         case CHIP_KAVERI:
 149         case CHIP_KABINI:
 150         case CHIP_MULLINS:
 151                 return 0;
 152         default:
 153                 return -EINVAL;
 154         }
 155
 156         snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_mc.bin", chip_name);
 157
 158         err = amdgpu_ucode_request(adev, &adev->gmc.fw, fw_name);
 159         if (err) {
 160                 pr_err("cik_mc: Failed to load firmware \"%s\"\n", fw_name);
 161                 amdgpu_ucode_release(&adev->gmc.fw);
 162         }
 163         return err;
 164 }
 165
 166 /**
 167  * gmc_v7_0_mc_load_microcode - load MC ucode into the hw
 168  *
 169  * @adev: amdgpu_device pointer
 170  *
 171  * Load the GDDR MC ucode into the hw (CIK).
 172  * Returns 0 on success, error on failure.
 173  */
 174 static int gmc_v7_0_mc_load_microcode(struct amdgpu_device *adev)
 175 {
 176         const struct mc_firmware_header_v1_0 *hdr;
 177         const __le32 *fw_data = NULL;
 178         const __le32 *io_mc_regs = NULL;
 179         u32 running;
 180         int i, ucode_size, regs_size;
 181
 182         if (!adev->gmc.fw)
 183                 return -EINVAL;
 184
 185         hdr = (const struct mc_firmware_header_v1_0 *)adev->gmc.fw->data;
 186         amdgpu_ucode_print_mc_hdr(&hdr->header);
 187
 188         adev->gmc.fw_version = le32_to_cpu(hdr->header.ucode_version);
 189         regs_size = le32_to_cpu(hdr->io_debug_size_bytes) / (4 * 2);
 190         io_mc_regs = (const __le32 *)
 191                 (adev->gmc.fw->data + le32_to_cpu(hdr->io_debug_array_offset_bytes));
 192         ucode_size = le32_to_cpu(hdr->header.ucode_size_bytes) / 4;
 193         fw_data = (const __le32 *)
 194                 (adev->gmc.fw->data + le32_to_cpu(hdr->header.ucode_array_offset_bytes));
 195
 196         running = REG_GET_FIELD(RREG32(mmMC_SEQ_SUP_CNTL), MC_SEQ_SUP_CNTL, RUN);
 197
 198         if (running == 0) {
 199                 /* reset the engine and set to writable */
 200                 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000008);
 201                 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000010);
 202
 203                 /* load mc io regs */
 204                 for (i = 0; i < regs_size; i++) {
 205                         WREG32(mmMC_SEQ_IO_DEBUG_INDEX, le32_to_cpup(io_mc_regs++));
 206                         WREG32(mmMC_SEQ_IO_DEBUG_DATA, le32_to_cpup(io_mc_regs++));
 207                 }
 208                 /* load the MC ucode */
 209                 for (i = 0; i < ucode_size; i++)
 210                         WREG32(mmMC_SEQ_SUP_PGM, le32_to_cpup(fw_data++));
 211
 212                 /* put the engine back into the active state */
 213                 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000008);
 214                 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000004);
 215                 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000001);
 216
 217                 /* wait for training to complete */
 218                 for (i = 0; i < adev->usec_timeout; i++) {
 219                         if (REG_GET_FIELD(RREG32(mmMC_SEQ_TRAIN_WAKEUP_CNTL),
 220                                           MC_SEQ_TRAIN_WAKEUP_CNTL, TRAIN_DONE_D0))
 221                                 break;
 222                         udelay(1);
 223                 }
 224                 for (i = 0; i < adev->usec_timeout; i++) {
 225                         if (REG_GET_FIELD(RREG32(mmMC_SEQ_TRAIN_WAKEUP_CNTL),
 226                                           MC_SEQ_TRAIN_WAKEUP_CNTL, TRAIN_DONE_D1))
 227                                 break;
 228                         udelay(1);
 229                 }
 230         }
 231
 232         return 0;
 233 }
 234
 235 static void gmc_v7_0_vram_gtt_location(struct amdgpu_device *adev,
 236                                        struct amdgpu_gmc *mc)
 237 {
 238         u64 base = RREG32(mmMC_VM_FB_LOCATION) & 0xFFFF;
 239
 240         base <<= 24;
 241
 242         amdgpu_gmc_set_agp_default(adev, mc);
 243         amdgpu_gmc_vram_location(adev, mc, base);
 244         amdgpu_gmc_gart_location(adev, mc, AMDGPU_GART_PLACEMENT_BEST_FIT);
 245 }
 246
 247 /**
 248  * gmc_v7_0_mc_program - program the GPU memory controller
 249  *
 250  * @adev: amdgpu_device pointer
 251  *
 252  * Set the location of vram, gart, and AGP in the GPU's
 253  * physical address space (CIK).
 254  */
 255 static void gmc_v7_0_mc_program(struct amdgpu_device *adev)
 256 {
 257         u32 tmp;
 258         int i, j;
 259
 260         /* Initialize HDP */
 261         for (i = 0, j = 0; i < 32; i++, j += 0x6) {
 262                 WREG32((0xb05 + j), 0x00000000);
 263                 WREG32((0xb06 + j), 0x00000000);
 264                 WREG32((0xb07 + j), 0x00000000);
 265                 WREG32((0xb08 + j), 0x00000000);
 266                 WREG32((0xb09 + j), 0x00000000);
 267         }
 268         WREG32(mmHDP_REG_COHERENCY_FLUSH_CNTL, 0);
 269
 270         if (gmc_v7_0_wait_for_idle((void *)adev))
 271                 dev_warn(adev->dev, "Wait for MC idle timedout !\n");
 272
 273         if (adev->mode_info.num_crtc) {
 274                 /* Lockout access through VGA aperture*/
 275                 tmp = RREG32(mmVGA_HDP_CONTROL);
 276                 tmp = REG_SET_FIELD(tmp, VGA_HDP_CONTROL, VGA_MEMORY_DISABLE, 1);
 277                 WREG32(mmVGA_HDP_CONTROL, tmp);
 278
 279                 /* disable VGA render */
 280                 tmp = RREG32(mmVGA_RENDER_CONTROL);
 281                 tmp = REG_SET_FIELD(tmp, VGA_RENDER_CONTROL, VGA_VSTATUS_CNTL, 0);
 282                 WREG32(mmVGA_RENDER_CONTROL, tmp);
 283         }
 284         /* Update configuration */
 285         WREG32(mmMC_VM_SYSTEM_APERTURE_LOW_ADDR,
 286                adev->gmc.vram_start >> 12);
 287         WREG32(mmMC_VM_SYSTEM_APERTURE_HIGH_ADDR,
 288                adev->gmc.vram_end >> 12);
 289         WREG32(mmMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR,
 290                adev->mem_scratch.gpu_addr >> 12);
 291         WREG32(mmMC_VM_AGP_BASE, 0);
 292         WREG32(mmMC_VM_AGP_TOP, adev->gmc.agp_end >> 22);
 293         WREG32(mmMC_VM_AGP_BOT, adev->gmc.agp_start >> 22);
 294         if (gmc_v7_0_wait_for_idle((void *)adev))
 295                 dev_warn(adev->dev, "Wait for MC idle timedout !\n");
 296
 297         WREG32(mmBIF_FB_EN, BIF_FB_EN__FB_READ_EN_MASK | BIF_FB_EN__FB_WRITE_EN_MASK);
 298
 299         tmp = RREG32(mmHDP_MISC_CNTL);
 300         tmp = REG_SET_FIELD(tmp, HDP_MISC_CNTL, FLUSH_INVALIDATE_CACHE, 0);
 301         WREG32(mmHDP_MISC_CNTL, tmp);
 302
 303         tmp = RREG32(mmHDP_HOST_PATH_CNTL);
 304         WREG32(mmHDP_HOST_PATH_CNTL, tmp);
 305 }
 306
 307 /**
 308  * gmc_v7_0_mc_init - initialize the memory controller driver params
 309  *
 310  * @adev: amdgpu_device pointer
 311  *
 312  * Look up the amount of vram, vram width, and decide how to place
 313  * vram and gart within the GPU's physical address space (CIK).
 314  * Returns 0 for success.
 315  */
 316 static int gmc_v7_0_mc_init(struct amdgpu_device *adev)
 317 {
 318         int r;
 319
 320         adev->gmc.vram_width = amdgpu_atombios_get_vram_width(adev);
 321         if (!adev->gmc.vram_width) {
 322                 u32 tmp;
 323                 int chansize, numchan;
 324
 325                 /* Get VRAM informations */
 326                 tmp = RREG32(mmMC_ARB_RAMCFG);
 327                 if (REG_GET_FIELD(tmp, MC_ARB_RAMCFG, CHANSIZE))
 328                         chansize = 64;
 329                 else
 330                         chansize = 32;
 331
 332                 tmp = RREG32(mmMC_SHARED_CHMAP);
 333                 switch (REG_GET_FIELD(tmp, MC_SHARED_CHMAP, NOOFCHAN)) {
 334                 case 0:
 335                 default:
 336                         numchan = 1;
 337                         break;
 338                 case 1:
 339                         numchan = 2;
 340                         break;
 341                 case 2:
 342                         numchan = 4;
 343                         break;
 344                 case 3:
 345                         numchan = 8;
 346                         break;
 347                 case 4:
 348                         numchan = 3;
 349                         break;
 350                 case 5:
 351                         numchan = 6;
 352                         break;
 353                 case 6:
 354                         numchan = 10;
 355                         break;
 356                 case 7:
 357                         numchan = 12;
 358                         break;
 359                 case 8:
 360                         numchan = 16;
 361                         break;
 362                 }
 363                 adev->gmc.vram_width = numchan * chansize;
 364         }
 365         /* size in MB on si */
 366         adev->gmc.mc_vram_size = RREG32(mmCONFIG_MEMSIZE) * 1024ULL * 1024ULL;
 367         adev->gmc.real_vram_size = RREG32(mmCONFIG_MEMSIZE) * 1024ULL * 1024ULL;
 368
 369         if (!(adev->flags & AMD_IS_APU)) {
 370                 r = amdgpu_device_resize_fb_bar(adev);
 371                 if (r)
 372                         return r;
 373         }
 374         adev->gmc.aper_base = pci_resource_start(adev->pdev, 0);
 375         adev->gmc.aper_size = pci_resource_len(adev->pdev, 0);
 376
 377 #ifdef CONFIG_X86_64
 378         if ((adev->flags & AMD_IS_APU) &&
 379             adev->gmc.real_vram_size > adev->gmc.aper_size &&
 380             !amdgpu_passthrough(adev)) {
 381                 adev->gmc.aper_base = ((u64)RREG32(mmMC_VM_FB_OFFSET)) << 22;
 382                 adev->gmc.aper_size = adev->gmc.real_vram_size;
 383         }
 384 #endif
 385
 386         adev->gmc.visible_vram_size = adev->gmc.aper_size;
 387
 388         /* set the gart size */
 389         if (amdgpu_gart_size == -1) {
 390                 switch (adev->asic_type) {
 391                 case CHIP_TOPAZ:     /* no MM engines */
 392                 default:
 393                         adev->gmc.gart_size = 256ULL << 20;
 394                         break;
 395 #ifdef CONFIG_DRM_AMDGPU_CIK
 396                 case CHIP_BONAIRE: /* UVD, VCE do not support GPUVM */
 397                 case CHIP_HAWAII:  /* UVD, VCE do not support GPUVM */
 398                 case CHIP_KAVERI:  /* UVD, VCE do not support GPUVM */
 399                 case CHIP_KABINI:  /* UVD, VCE do not support GPUVM */
 400                 case CHIP_MULLINS: /* UVD, VCE do not support GPUVM */
 401                         adev->gmc.gart_size = 1024ULL << 20;
 402                         break;
 403 #endif
 404                 }
 405         } else {
 406                 adev->gmc.gart_size = (u64)amdgpu_gart_size << 20;
 407         }
 408
 409         adev->gmc.gart_size += adev->pm.smu_prv_buffer_size;
 410         gmc_v7_0_vram_gtt_location(adev, &adev->gmc);
 411
 412         return 0;
 413 }
 414
 415 /**
 416  * gmc_v7_0_flush_gpu_tlb_pasid - tlb flush via pasid
 417  *
 418  * @adev: amdgpu_device pointer
 419  * @pasid: pasid to be flush
 420  * @flush_type: type of flush
 421  * @all_hub: flush all hubs
 422  * @inst: is used to select which instance of KIQ to use for the invalidation
 423  *
 424  * Flush the TLB for the requested pasid.
 425  */
 426 static void gmc_v7_0_flush_gpu_tlb_pasid(struct amdgpu_device *adev,
 427                                          uint16_t pasid, uint32_t flush_type,
 428                                          bool all_hub, uint32_t inst)
 429 {
 430         u32 mask = 0x0;
 431         int vmid;
 432
 433         for (vmid = 1; vmid < 16; vmid++) {
 434                 u32 tmp = RREG32(mmATC_VMID0_PASID_MAPPING + vmid);
 435
 436                 if ((tmp & ATC_VMID0_PASID_MAPPING__VALID_MASK) &&
 437                     (tmp & ATC_VMID0_PASID_MAPPING__PASID_MASK) == pasid)
 438                         mask |= 1 << vmid;
 439         }
 440
 441         WREG32(mmVM_INVALIDATE_REQUEST, mask);
 442         RREG32(mmVM_INVALIDATE_RESPONSE);
 443 }
 444
 445 /*
 446  * GART
 447  * VMID 0 is the physical GPU addresses as used by the kernel.
 448  * VMIDs 1-15 are used for userspace clients and are handled
 449  * by the amdgpu vm/hsa code.
 450  */
 451
 452 /**
 453  * gmc_v7_0_flush_gpu_tlb - gart tlb flush callback
 454  *
 455  * @adev: amdgpu_device pointer
 456  * @vmid: vm instance to flush
 457  * @vmhub: which hub to flush
 458  * @flush_type: type of flush
 459  * *
 460  * Flush the TLB for the requested page table (CIK).
 461  */
 462 static void gmc_v7_0_flush_gpu_tlb(struct amdgpu_device *adev, uint32_t vmid,
 463                                         uint32_t vmhub, uint32_t flush_type)
 464 {
 465         /* bits 0-15 are the VM contexts0-15 */
 466         WREG32(mmVM_INVALIDATE_REQUEST, 1 << vmid);
 467 }
 468
 469 static uint64_t gmc_v7_0_emit_flush_gpu_tlb(struct amdgpu_ring *ring,
 470                                             unsigned int vmid, uint64_t pd_addr)
 471 {
 472         uint32_t reg;
 473
 474         if (vmid < 8)
 475                 reg = mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR + vmid;
 476         else
 477                 reg = mmVM_CONTEXT8_PAGE_TABLE_BASE_ADDR + vmid - 8;
 478         amdgpu_ring_emit_wreg(ring, reg, pd_addr >> 12);
 479
 480         /* bits 0-15 are the VM contexts0-15 */
 481         amdgpu_ring_emit_wreg(ring, mmVM_INVALIDATE_REQUEST, 1 << vmid);
 482
 483         return pd_addr;
 484 }
 485
 486 static void gmc_v7_0_emit_pasid_mapping(struct amdgpu_ring *ring, unsigned int vmid,
 487                                         unsigned int pasid)
 488 {
 489         amdgpu_ring_emit_wreg(ring, mmIH_VMID_0_LUT + vmid, pasid);
 490 }
 491
 492 static void gmc_v7_0_get_vm_pde(struct amdgpu_device *adev, int level,
 493                                 uint64_t *addr, uint64_t *flags)
 494 {
 495         BUG_ON(*addr & 0xFFFFFF0000000FFFULL);
 496 }
 497
 498 static void gmc_v7_0_get_vm_pte(struct amdgpu_device *adev,
 499                                 struct amdgpu_bo_va_mapping *mapping,
 500                                 uint64_t *flags)
 501 {
 502         *flags &= ~AMDGPU_PTE_EXECUTABLE;
 503         *flags &= ~AMDGPU_PTE_PRT;
 504 }
 505
 506 /**
 507  * gmc_v7_0_set_fault_enable_default - update VM fault handling
 508  *
 509  * @adev: amdgpu_device pointer
 510  * @value: true redirects VM faults to the default page
 511  */
 512 static void gmc_v7_0_set_fault_enable_default(struct amdgpu_device *adev,
 513                                               bool value)
 514 {
 515         u32 tmp;
 516
 517         tmp = RREG32(mmVM_CONTEXT1_CNTL);
 518         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 519                             RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 520         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 521                             DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 522         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 523                             PDE0_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 524         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 525                             VALID_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 526         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 527                             READ_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 528         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 529                             WRITE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 530         WREG32(mmVM_CONTEXT1_CNTL, tmp);
 531 }
 532
 533 /**
 534  * gmc_v7_0_set_prt - set PRT VM fault
 535  *
 536  * @adev: amdgpu_device pointer
 537  * @enable: enable/disable VM fault handling for PRT
 538  */
 539 static void gmc_v7_0_set_prt(struct amdgpu_device *adev, bool enable)
 540 {
 541         uint32_t tmp;
 542
 543         if (enable && !adev->gmc.prt_warning) {
 544                 dev_warn(adev->dev, "Disabling VM faults because of PRT request!\n");
 545                 adev->gmc.prt_warning = true;
 546         }
 547
 548         tmp = RREG32(mmVM_PRT_CNTL);
 549         tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
 550                             CB_DISABLE_READ_FAULT_ON_UNMAPPED_ACCESS, enable);
 551         tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
 552                             CB_DISABLE_WRITE_FAULT_ON_UNMAPPED_ACCESS, enable);
 553         tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
 554                             TC_DISABLE_READ_FAULT_ON_UNMAPPED_ACCESS, enable);
 555         tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
 556                             TC_DISABLE_WRITE_FAULT_ON_UNMAPPED_ACCESS, enable);
 557         tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
 558                             L2_CACHE_STORE_INVALID_ENTRIES, enable);
 559         tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
 560                             L1_TLB_STORE_INVALID_ENTRIES, enable);
 561         tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
 562                             MASK_PDE0_FAULT, enable);
 563         WREG32(mmVM_PRT_CNTL, tmp);
 564
 565         if (enable) {
 566                 uint32_t low = AMDGPU_VA_RESERVED_BOTTOM >>
 567                         AMDGPU_GPU_PAGE_SHIFT;
 568                 uint32_t high = adev->vm_manager.max_pfn -
 569                         (AMDGPU_VA_RESERVED_TOP >> AMDGPU_GPU_PAGE_SHIFT);
 570
 571                 WREG32(mmVM_PRT_APERTURE0_LOW_ADDR, low);
 572                 WREG32(mmVM_PRT_APERTURE1_LOW_ADDR, low);
 573                 WREG32(mmVM_PRT_APERTURE2_LOW_ADDR, low);
 574                 WREG32(mmVM_PRT_APERTURE3_LOW_ADDR, low);
 575                 WREG32(mmVM_PRT_APERTURE0_HIGH_ADDR, high);
 576                 WREG32(mmVM_PRT_APERTURE1_HIGH_ADDR, high);
 577                 WREG32(mmVM_PRT_APERTURE2_HIGH_ADDR, high);
 578                 WREG32(mmVM_PRT_APERTURE3_HIGH_ADDR, high);
 579         } else {
 580                 WREG32(mmVM_PRT_APERTURE0_LOW_ADDR, 0xfffffff);
 581                 WREG32(mmVM_PRT_APERTURE1_LOW_ADDR, 0xfffffff);
 582                 WREG32(mmVM_PRT_APERTURE2_LOW_ADDR, 0xfffffff);
 583                 WREG32(mmVM_PRT_APERTURE3_LOW_ADDR, 0xfffffff);
 584                 WREG32(mmVM_PRT_APERTURE0_HIGH_ADDR, 0x0);
 585                 WREG32(mmVM_PRT_APERTURE1_HIGH_ADDR, 0x0);
 586                 WREG32(mmVM_PRT_APERTURE2_HIGH_ADDR, 0x0);
 587                 WREG32(mmVM_PRT_APERTURE3_HIGH_ADDR, 0x0);
 588         }
 589 }
 590
 591 /**
 592  * gmc_v7_0_gart_enable - gart enable
 593  *
 594  * @adev: amdgpu_device pointer
 595  *
 596  * This sets up the TLBs, programs the page tables for VMID0,
 597  * sets up the hw for VMIDs 1-15 which are allocated on
 598  * demand, and sets up the global locations for the LDS, GDS,
 599  * and GPUVM for FSA64 clients (CIK).
 600  * Returns 0 for success, errors for failure.
 601  */
 602 static int gmc_v7_0_gart_enable(struct amdgpu_device *adev)
 603 {
 604         uint64_t table_addr;
 605         u32 tmp, field;
 606         int i;
 607
 608         if (adev->gart.bo == NULL) {
 609                 dev_err(adev->dev, "No VRAM object for PCIE GART.\n");
 610                 return -EINVAL;
 611         }
 612         amdgpu_gtt_mgr_recover(&adev->mman.gtt_mgr);
 613         table_addr = amdgpu_bo_gpu_offset(adev->gart.bo);
 614
 615         /* Setup TLB control */
 616         tmp = RREG32(mmMC_VM_MX_L1_TLB_CNTL);
 617         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 1);
 618         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_FRAGMENT_PROCESSING, 1);
 619         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, SYSTEM_ACCESS_MODE, 3);
 620         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_ADVANCED_DRIVER_MODEL, 1);
 621         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, SYSTEM_APERTURE_UNMAPPED_ACCESS, 0);
 622         WREG32(mmMC_VM_MX_L1_TLB_CNTL, tmp);
 623         /* Setup L2 cache */
 624         tmp = RREG32(mmVM_L2_CNTL);
 625         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_CACHE, 1);
 626         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_FRAGMENT_PROCESSING, 1);
 627         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_PTE_CACHE_LRU_UPDATE_BY_WRITE, 1);
 628         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_PDE0_CACHE_LRU_UPDATE_BY_WRITE, 1);
 629         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, EFFECTIVE_L2_QUEUE_SIZE, 7);
 630         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, CONTEXT1_IDENTITY_ACCESS_MODE, 1);
 631         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_DEFAULT_PAGE_OUT_TO_SYSTEM_MEMORY, 1);
 632         WREG32(mmVM_L2_CNTL, tmp);
 633         tmp = REG_SET_FIELD(0, VM_L2_CNTL2, INVALIDATE_ALL_L1_TLBS, 1);
 634         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL2, INVALIDATE_L2_CACHE, 1);
 635         WREG32(mmVM_L2_CNTL2, tmp);
 636
 637         field = adev->vm_manager.fragment_size;
 638         tmp = RREG32(mmVM_L2_CNTL3);
 639         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, L2_CACHE_BIGK_ASSOCIATIVITY, 1);
 640         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, BANK_SELECT, field);
 641         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, L2_CACHE_BIGK_FRAGMENT_SIZE, field);
 642         WREG32(mmVM_L2_CNTL3, tmp);
 643         /* setup context0 */
 644         WREG32(mmVM_CONTEXT0_PAGE_TABLE_START_ADDR, adev->gmc.gart_start >> 12);
 645         WREG32(mmVM_CONTEXT0_PAGE_TABLE_END_ADDR, adev->gmc.gart_end >> 12);
 646         WREG32(mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR, table_addr >> 12);
 647         WREG32(mmVM_CONTEXT0_PROTECTION_FAULT_DEFAULT_ADDR,
 648                         (u32)(adev->dummy_page_addr >> 12));
 649         WREG32(mmVM_CONTEXT0_CNTL2, 0);
 650         tmp = RREG32(mmVM_CONTEXT0_CNTL);
 651         tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, ENABLE_CONTEXT, 1);
 652         tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, PAGE_TABLE_DEPTH, 0);
 653         tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 654         WREG32(mmVM_CONTEXT0_CNTL, tmp);
 655
 656         WREG32(0x575, 0);
 657         WREG32(0x576, 0);
 658         WREG32(0x577, 0);
 659
 660         /* empty context1-15 */
 661         /* FIXME start with 4G, once using 2 level pt switch to full
 662          * vm size space
 663          */
 664         /* set vm size, must be a multiple of 4 */
 665         WREG32(mmVM_CONTEXT1_PAGE_TABLE_START_ADDR, 0);
 666         WREG32(mmVM_CONTEXT1_PAGE_TABLE_END_ADDR, adev->vm_manager.max_pfn - 1);
 667         for (i = 1; i < AMDGPU_NUM_VMID; i++) {
 668                 if (i < 8)
 669                         WREG32(mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR + i,
 670                                table_addr >> 12);
 671                 else
 672                         WREG32(mmVM_CONTEXT8_PAGE_TABLE_BASE_ADDR + i - 8,
 673                                table_addr >> 12);
 674         }
 675
 676         /* enable context1-15 */
 677         WREG32(mmVM_CONTEXT1_PROTECTION_FAULT_DEFAULT_ADDR,
 678                (u32)(adev->dummy_page_addr >> 12));
 679         WREG32(mmVM_CONTEXT1_CNTL2, 4);
 680         tmp = RREG32(mmVM_CONTEXT1_CNTL);
 681         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, ENABLE_CONTEXT, 1);
 682         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, PAGE_TABLE_DEPTH, 1);
 683         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, PAGE_TABLE_BLOCK_SIZE,
 684                             adev->vm_manager.block_size - 9);
 685         WREG32(mmVM_CONTEXT1_CNTL, tmp);
 686         if (amdgpu_vm_fault_stop == AMDGPU_VM_FAULT_STOP_ALWAYS)
 687                 gmc_v7_0_set_fault_enable_default(adev, false);
 688         else
 689                 gmc_v7_0_set_fault_enable_default(adev, true);
 690
 691         if (adev->asic_type == CHIP_KAVERI) {
 692                 tmp = RREG32(mmCHUB_CONTROL);
 693                 tmp &= ~BYPASS_VM;
 694                 WREG32(mmCHUB_CONTROL, tmp);
 695         }
 696
 697         gmc_v7_0_flush_gpu_tlb(adev, 0, 0, 0);
 698         DRM_INFO("PCIE GART of %uM enabled (table at 0x%016llX).\n",
 699                  (unsigned int)(adev->gmc.gart_size >> 20),
 700                  (unsigned long long)table_addr);
 701         return 0;
 702 }
 703
 704 static int gmc_v7_0_gart_init(struct amdgpu_device *adev)
 705 {
 706         int r;
 707
 708         if (adev->gart.bo) {
 709                 WARN(1, "R600 PCIE GART already initialized\n");
 710                 return 0;
 711         }
 712         /* Initialize common gart structure */
 713         r = amdgpu_gart_init(adev);
 714         if (r)
 715                 return r;
 716         adev->gart.table_size = adev->gart.num_gpu_pages * 8;
 717         adev->gart.gart_pte_flags = 0;
 718         return amdgpu_gart_table_vram_alloc(adev);
 719 }
 720
 721 /**
 722  * gmc_v7_0_gart_disable - gart disable
 723  *
 724  * @adev: amdgpu_device pointer
 725  *
 726  * This disables all VM page table (CIK).
 727  */
 728 static void gmc_v7_0_gart_disable(struct amdgpu_device *adev)
 729 {
 730         u32 tmp;
 731
 732         /* Disable all tables */
 733         WREG32(mmVM_CONTEXT0_CNTL, 0);
 734         WREG32(mmVM_CONTEXT1_CNTL, 0);
 735         /* Setup TLB control */
 736         tmp = RREG32(mmMC_VM_MX_L1_TLB_CNTL);
 737         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 0);
 738         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_FRAGMENT_PROCESSING, 0);
 739         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_ADVANCED_DRIVER_MODEL, 0);
 740         WREG32(mmMC_VM_MX_L1_TLB_CNTL, tmp);
 741         /* Setup L2 cache */
 742         tmp = RREG32(mmVM_L2_CNTL);
 743         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_CACHE, 0);
 744         WREG32(mmVM_L2_CNTL, tmp);
 745         WREG32(mmVM_L2_CNTL2, 0);
 746 }
 747
 748 /**
 749  * gmc_v7_0_vm_decode_fault - print human readable fault info
 750  *
 751  * @adev: amdgpu_device pointer
 752  * @status: VM_CONTEXT1_PROTECTION_FAULT_STATUS register value
 753  * @addr: VM_CONTEXT1_PROTECTION_FAULT_ADDR register value
 754  * @mc_client: VM_CONTEXT1_PROTECTION_FAULT_MCCLIENT register value
 755  * @pasid: debug logging only - no functional use
 756  *
 757  * Print human readable fault information (CIK).
 758  */
 759 static void gmc_v7_0_vm_decode_fault(struct amdgpu_device *adev, u32 status,
 760                                      u32 addr, u32 mc_client, unsigned int pasid)
 761 {
 762         u32 vmid = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS, VMID);
 763         u32 protections = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS,
 764                                         PROTECTIONS);
 765         char block[5] = { mc_client >> 24, (mc_client >> 16) & 0xff,
 766                 (mc_client >> 8) & 0xff, mc_client & 0xff, 0 };
 767         u32 mc_id;
 768
 769         mc_id = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS,
 770                               MEMORY_CLIENT_ID);
 771
 772         dev_err(adev->dev, "VM fault (0x%02x, vmid %d, pasid %d) at page %u, %s from '%s' (0x%08x) (%d)\n",
 773                protections, vmid, pasid, addr,
 774                REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS,
 775                              MEMORY_CLIENT_RW) ?
 776                "write" : "read", block, mc_client, mc_id);
 777 }
 778
 779
 780 static const u32 mc_cg_registers[] = {
 781         mmMC_HUB_MISC_HUB_CG,
 782         mmMC_HUB_MISC_SIP_CG,
 783         mmMC_HUB_MISC_VM_CG,
 784         mmMC_XPB_CLK_GAT,
 785         mmATC_MISC_CG,
 786         mmMC_CITF_MISC_WR_CG,
 787         mmMC_CITF_MISC_RD_CG,
 788         mmMC_CITF_MISC_VM_CG,
 789         mmVM_L2_CG,
 790 };
 791
 792 static const u32 mc_cg_ls_en[] = {
 793         MC_HUB_MISC_HUB_CG__MEM_LS_ENABLE_MASK,
 794         MC_HUB_MISC_SIP_CG__MEM_LS_ENABLE_MASK,
 795         MC_HUB_MISC_VM_CG__MEM_LS_ENABLE_MASK,
 796         MC_XPB_CLK_GAT__MEM_LS_ENABLE_MASK,
 797         ATC_MISC_CG__MEM_LS_ENABLE_MASK,
 798         MC_CITF_MISC_WR_CG__MEM_LS_ENABLE_MASK,
 799         MC_CITF_MISC_RD_CG__MEM_LS_ENABLE_MASK,
 800         MC_CITF_MISC_VM_CG__MEM_LS_ENABLE_MASK,
 801         VM_L2_CG__MEM_LS_ENABLE_MASK,
 802 };
 803
 804 static const u32 mc_cg_en[] = {
 805         MC_HUB_MISC_HUB_CG__ENABLE_MASK,
 806         MC_HUB_MISC_SIP_CG__ENABLE_MASK,
 807         MC_HUB_MISC_VM_CG__ENABLE_MASK,
 808         MC_XPB_CLK_GAT__ENABLE_MASK,
 809         ATC_MISC_CG__ENABLE_MASK,
 810         MC_CITF_MISC_WR_CG__ENABLE_MASK,
 811         MC_CITF_MISC_RD_CG__ENABLE_MASK,
 812         MC_CITF_MISC_VM_CG__ENABLE_MASK,
 813         VM_L2_CG__ENABLE_MASK,
 814 };
 815
 816 static void gmc_v7_0_enable_mc_ls(struct amdgpu_device *adev,
 817                                   bool enable)
 818 {
 819         int i;
 820         u32 orig, data;
 821
 822         for (i = 0; i < ARRAY_SIZE(mc_cg_registers); i++) {
 823                 orig = data = RREG32(mc_cg_registers[i]);
 824                 if (enable && (adev->cg_flags & AMD_CG_SUPPORT_MC_LS))
 825                         data |= mc_cg_ls_en[i];
 826                 else
 827                         data &= ~mc_cg_ls_en[i];
 828                 if (data != orig)
 829                         WREG32(mc_cg_registers[i], data);
 830         }
 831 }
 832
 833 static void gmc_v7_0_enable_mc_mgcg(struct amdgpu_device *adev,
 834                                     bool enable)
 835 {
 836         int i;
 837         u32 orig, data;
 838
 839         for (i = 0; i < ARRAY_SIZE(mc_cg_registers); i++) {
 840                 orig = data = RREG32(mc_cg_registers[i]);
 841                 if (enable && (adev->cg_flags & AMD_CG_SUPPORT_MC_MGCG))
 842                         data |= mc_cg_en[i];
 843                 else
 844                         data &= ~mc_cg_en[i];
 845                 if (data != orig)
 846                         WREG32(mc_cg_registers[i], data);
 847         }
 848 }
 849
 850 static void gmc_v7_0_enable_bif_mgls(struct amdgpu_device *adev,
 851                                      bool enable)
 852 {
 853         u32 orig, data;
 854
 855         orig = data = RREG32_PCIE(ixPCIE_CNTL2);
 856
 857         if (enable && (adev->cg_flags & AMD_CG_SUPPORT_BIF_LS)) {
 858                 data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_LS_EN, 1);
 859                 data = REG_SET_FIELD(data, PCIE_CNTL2, MST_MEM_LS_EN, 1);
 860                 data = REG_SET_FIELD(data, PCIE_CNTL2, REPLAY_MEM_LS_EN, 1);
 861                 data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_AGGRESSIVE_LS_EN, 1);
 862         } else {
 863                 data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_LS_EN, 0);
 864                 data = REG_SET_FIELD(data, PCIE_CNTL2, MST_MEM_LS_EN, 0);
 865                 data = REG_SET_FIELD(data, PCIE_CNTL2, REPLAY_MEM_LS_EN, 0);
 866                 data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_AGGRESSIVE_LS_EN, 0);
 867         }
 868
 869         if (orig != data)
 870                 WREG32_PCIE(ixPCIE_CNTL2, data);
 871 }
 872
 873 static void gmc_v7_0_enable_hdp_mgcg(struct amdgpu_device *adev,
 874                                      bool enable)
 875 {
 876         u32 orig, data;
 877
 878         orig = data = RREG32(mmHDP_HOST_PATH_CNTL);
 879
 880         if (enable && (adev->cg_flags & AMD_CG_SUPPORT_HDP_MGCG))
 881                 data = REG_SET_FIELD(data, HDP_HOST_PATH_CNTL, CLOCK_GATING_DIS, 0);
 882         else
 883                 data = REG_SET_FIELD(data, HDP_HOST_PATH_CNTL, CLOCK_GATING_DIS, 1);
 884
 885         if (orig != data)
 886                 WREG32(mmHDP_HOST_PATH_CNTL, data);
 887 }
 888
 889 static void gmc_v7_0_enable_hdp_ls(struct amdgpu_device *adev,
 890                                    bool enable)
 891 {
 892         u32 orig, data;
 893
 894         orig = data = RREG32(mmHDP_MEM_POWER_LS);
 895
 896         if (enable && (adev->cg_flags & AMD_CG_SUPPORT_HDP_LS))
 897                 data = REG_SET_FIELD(data, HDP_MEM_POWER_LS, LS_ENABLE, 1);
 898         else
 899                 data = REG_SET_FIELD(data, HDP_MEM_POWER_LS, LS_ENABLE, 0);
 900
 901         if (orig != data)
 902                 WREG32(mmHDP_MEM_POWER_LS, data);
 903 }
 904
 905 static int gmc_v7_0_convert_vram_type(int mc_seq_vram_type)
 906 {
 907         switch (mc_seq_vram_type) {
 908         case MC_SEQ_MISC0__MT__GDDR1:
 909                 return AMDGPU_VRAM_TYPE_GDDR1;
 910         case MC_SEQ_MISC0__MT__DDR2:
 911                 return AMDGPU_VRAM_TYPE_DDR2;
 912         case MC_SEQ_MISC0__MT__GDDR3:
 913                 return AMDGPU_VRAM_TYPE_GDDR3;
 914         case MC_SEQ_MISC0__MT__GDDR4:
 915                 return AMDGPU_VRAM_TYPE_GDDR4;
 916         case MC_SEQ_MISC0__MT__GDDR5:
 917                 return AMDGPU_VRAM_TYPE_GDDR5;
 918         case MC_SEQ_MISC0__MT__HBM:
 919                 return AMDGPU_VRAM_TYPE_HBM;
 920         case MC_SEQ_MISC0__MT__DDR3:
 921                 return AMDGPU_VRAM_TYPE_DDR3;
 922         default:
 923                 return AMDGPU_VRAM_TYPE_UNKNOWN;
 924         }
 925 }
 926
 927 static int gmc_v7_0_early_init(void *handle)
 928 {
 929         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 930
 931         gmc_v7_0_set_gmc_funcs(adev);
 932         gmc_v7_0_set_irq_funcs(adev);
 933
 934         adev->gmc.shared_aperture_start = 0x2000000000000000ULL;
 935         adev->gmc.shared_aperture_end =
 936                 adev->gmc.shared_aperture_start + (4ULL << 30) - 1;
 937         adev->gmc.private_aperture_start =
 938                 adev->gmc.shared_aperture_end + 1;
 939         adev->gmc.private_aperture_end =
 940                 adev->gmc.private_aperture_start + (4ULL << 30) - 1;
 941         adev->gmc.noretry_flags = AMDGPU_VM_NORETRY_FLAGS_TF;
 942
 943         return 0;
 944 }
 945
 946 static int gmc_v7_0_late_init(void *handle)
 947 {
 948         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 949
 950         if (amdgpu_vm_fault_stop != AMDGPU_VM_FAULT_STOP_ALWAYS)
 951                 return amdgpu_irq_get(adev, &adev->gmc.vm_fault, 0);
 952         else
 953                 return 0;
 954 }
 955
 956 static unsigned int gmc_v7_0_get_vbios_fb_size(struct amdgpu_device *adev)
 957 {
 958         u32 d1vga_control = RREG32(mmD1VGA_CONTROL);
 959         unsigned int size;
 960
 961         if (REG_GET_FIELD(d1vga_control, D1VGA_CONTROL, D1VGA_MODE_ENABLE)) {
 962                 size = AMDGPU_VBIOS_VGA_ALLOCATION;
 963         } else {
 964                 u32 viewport = RREG32(mmVIEWPORT_SIZE);
 965
 966                 size = (REG_GET_FIELD(viewport, VIEWPORT_SIZE, VIEWPORT_HEIGHT) *
 967                         REG_GET_FIELD(viewport, VIEWPORT_SIZE, VIEWPORT_WIDTH) *
 968                         4);
 969         }
 970
 971         return size;
 972 }
 973
 974 static int gmc_v7_0_sw_init(void *handle)
 975 {
 976         int r;
 977         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 978
 979         set_bit(AMDGPU_GFXHUB(0), adev->vmhubs_mask);
 980
 981         if (adev->flags & AMD_IS_APU) {
 982                 adev->gmc.vram_type = AMDGPU_VRAM_TYPE_UNKNOWN;
 983         } else {
 984                 u32 tmp = RREG32(mmMC_SEQ_MISC0);
 985
 986                 tmp &= MC_SEQ_MISC0__MT__MASK;
 987                 adev->gmc.vram_type = gmc_v7_0_convert_vram_type(tmp);
 988         }
 989
 990         r = amdgpu_irq_add_id(adev, AMDGPU_IRQ_CLIENTID_LEGACY, VISLANDS30_IV_SRCID_GFX_PAGE_INV_FAULT, &adev->gmc.vm_fault);
 991         if (r)
 992                 return r;
 993
 994         r = amdgpu_irq_add_id(adev, AMDGPU_IRQ_CLIENTID_LEGACY, VISLANDS30_IV_SRCID_GFX_MEM_PROT_FAULT, &adev->gmc.vm_fault);
 995         if (r)
 996                 return r;
 997
 998         /* Adjust VM size here.
 999          * Currently set to 4GB ((1 << 20) 4k pages).
1000          * Max GPUVM size for cayman and SI is 40 bits.
1001          */
1002         amdgpu_vm_adjust_size(adev, 64, 9, 1, 40);
1003
1004         /* Set the internal MC address mask
1005          * This is the max address of the GPU's
1006          * internal address space.
1007          */
1008         adev->gmc.mc_mask = 0xffffffffffULL; /* 40 bit MC */
1009
1010         r = dma_set_mask_and_coherent(adev->dev, DMA_BIT_MASK(40));
1011         if (r) {
1012                 pr_warn("No suitable DMA available\n");
1013                 return r;
1014         }
1015         adev->need_swiotlb = drm_need_swiotlb(40);
1016
1017         r = gmc_v7_0_init_microcode(adev);
1018         if (r) {
1019                 DRM_ERROR("Failed to load mc firmware!\n");
1020                 return r;
1021         }
1022
1023         r = gmc_v7_0_mc_init(adev);
1024         if (r)
1025                 return r;
1026
1027         amdgpu_gmc_get_vbios_allocations(adev);
1028
1029         /* Memory manager */
1030         r = amdgpu_bo_init(adev);
1031         if (r)
1032                 return r;
1033
1034         r = gmc_v7_0_gart_init(adev);
1035         if (r)
1036                 return r;
1037
1038         /*
1039          * number of VMs
1040          * VMID 0 is reserved for System
1041          * amdgpu graphics/compute will use VMIDs 1-7
1042          * amdkfd will use VMIDs 8-15
1043          */
1044         adev->vm_manager.first_kfd_vmid = 8;
1045         amdgpu_vm_manager_init(adev);
1046
1047         /* base offset of vram pages */
1048         if (adev->flags & AMD_IS_APU) {
1049                 u64 tmp = RREG32(mmMC_VM_FB_OFFSET);
1050
1051                 tmp <<= 22;
1052                 adev->vm_manager.vram_base_offset = tmp;
1053         } else {
1054                 adev->vm_manager.vram_base_offset = 0;
1055         }
1056
1057         adev->gmc.vm_fault_info = kmalloc(sizeof(struct kfd_vm_fault_info),
1058                                         GFP_KERNEL);
1059         if (!adev->gmc.vm_fault_info)
1060                 return -ENOMEM;
1061         atomic_set(&adev->gmc.vm_fault_info_updated, 0);
1062
1063         return 0;
1064 }
1065
1066 static int gmc_v7_0_sw_fini(void *handle)
1067 {
1068         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1069
1070         amdgpu_gem_force_release(adev);
1071         amdgpu_vm_manager_fini(adev);
1072         kfree(adev->gmc.vm_fault_info);
1073         amdgpu_gart_table_vram_free(adev);
1074         amdgpu_bo_fini(adev);
1075         amdgpu_ucode_release(&adev->gmc.fw);
1076
1077         return 0;
1078 }
1079
1080 static int gmc_v7_0_hw_init(void *handle)
1081 {
1082         int r;
1083         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1084
1085         gmc_v7_0_init_golden_registers(adev);
1086
1087         gmc_v7_0_mc_program(adev);
1088
1089         if (!(adev->flags & AMD_IS_APU)) {
1090                 r = gmc_v7_0_mc_load_microcode(adev);
1091                 if (r) {
1092                         DRM_ERROR("Failed to load MC firmware!\n");
1093                         return r;
1094                 }
1095         }
1096
1097         r = gmc_v7_0_gart_enable(adev);
1098         if (r)
1099                 return r;
1100
1101         if (amdgpu_emu_mode == 1)
1102                 return amdgpu_gmc_vram_checking(adev);
1103
1104         return 0;
1105 }
1106
1107 static int gmc_v7_0_hw_fini(void *handle)
1108 {
1109         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1110
1111         amdgpu_irq_put(adev, &adev->gmc.vm_fault, 0);
1112         gmc_v7_0_gart_disable(adev);
1113
1114         return 0;
1115 }
1116
1117 static int gmc_v7_0_suspend(void *handle)
1118 {
1119         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1120
1121         gmc_v7_0_hw_fini(adev);
1122
1123         return 0;
1124 }
1125
1126 static int gmc_v7_0_resume(void *handle)
1127 {
1128         int r;
1129         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1130
1131         r = gmc_v7_0_hw_init(adev);
1132         if (r)
1133                 return r;
1134
1135         amdgpu_vmid_reset_all(adev);
1136
1137         return 0;
1138 }
1139
1140 static bool gmc_v7_0_is_idle(void *handle)
1141 {
1142         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1143         u32 tmp = RREG32(mmSRBM_STATUS);
1144
1145         if (tmp & (SRBM_STATUS__MCB_BUSY_MASK | SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK |
1146                    SRBM_STATUS__MCC_BUSY_MASK | SRBM_STATUS__MCD_BUSY_MASK | SRBM_STATUS__VMC_BUSY_MASK))
1147                 return false;
1148
1149         return true;
1150 }
1151
1152 static int gmc_v7_0_wait_for_idle(void *handle)
1153 {
1154         unsigned int i;
1155         u32 tmp;
1156         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1157
1158         for (i = 0; i < adev->usec_timeout; i++) {
1159                 /* read MC_STATUS */
1160                 tmp = RREG32(mmSRBM_STATUS) & (SRBM_STATUS__MCB_BUSY_MASK |
1161                                                SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK |
1162                                                SRBM_STATUS__MCC_BUSY_MASK |
1163                                                SRBM_STATUS__MCD_BUSY_MASK |
1164                                                SRBM_STATUS__VMC_BUSY_MASK);
1165                 if (!tmp)
1166                         return 0;
1167                 udelay(1);
1168         }
1169         return -ETIMEDOUT;
1170
1171 }
1172
1173 static int gmc_v7_0_soft_reset(void *handle)
1174 {
1175         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1176         u32 srbm_soft_reset = 0;
1177         u32 tmp = RREG32(mmSRBM_STATUS);
1178
1179         if (tmp & SRBM_STATUS__VMC_BUSY_MASK)
1180                 srbm_soft_reset = REG_SET_FIELD(srbm_soft_reset,
1181                                                 SRBM_SOFT_RESET, SOFT_RESET_VMC, 1);
1182
1183         if (tmp & (SRBM_STATUS__MCB_BUSY_MASK | SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK |
1184                    SRBM_STATUS__MCC_BUSY_MASK | SRBM_STATUS__MCD_BUSY_MASK)) {
1185                 if (!(adev->flags & AMD_IS_APU))
1186                         srbm_soft_reset = REG_SET_FIELD(srbm_soft_reset,
1187                                                         SRBM_SOFT_RESET, SOFT_RESET_MC, 1);
1188         }
1189
1190         if (srbm_soft_reset) {
1191                 gmc_v7_0_mc_stop(adev);
1192                 if (gmc_v7_0_wait_for_idle((void *)adev))
1193                         dev_warn(adev->dev, "Wait for GMC idle timed out !\n");
1194
1195                 tmp = RREG32(mmSRBM_SOFT_RESET);
1196                 tmp |= srbm_soft_reset;
1197                 dev_info(adev->dev, "SRBM_SOFT_RESET=0x%08X\n", tmp);
1198                 WREG32(mmSRBM_SOFT_RESET, tmp);
1199                 tmp = RREG32(mmSRBM_SOFT_RESET);
1200
1201                 udelay(50);
1202
1203                 tmp &= ~srbm_soft_reset;
1204                 WREG32(mmSRBM_SOFT_RESET, tmp);
1205                 tmp = RREG32(mmSRBM_SOFT_RESET);
1206
1207                 /* Wait a little for things to settle down */
1208                 udelay(50);
1209
1210                 gmc_v7_0_mc_resume(adev);
1211                 udelay(50);
1212         }
1213
1214         return 0;
1215 }
1216
1217 static int gmc_v7_0_vm_fault_interrupt_state(struct amdgpu_device *adev,
1218                                              struct amdgpu_irq_src *src,
1219                                              unsigned int type,
1220                                              enum amdgpu_interrupt_state state)
1221 {
1222         u32 tmp;
1223         u32 bits = (VM_CONTEXT1_CNTL__RANGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1224                     VM_CONTEXT1_CNTL__DUMMY_PAGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1225                     VM_CONTEXT1_CNTL__PDE0_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1226                     VM_CONTEXT1_CNTL__VALID_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1227                     VM_CONTEXT1_CNTL__READ_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1228                     VM_CONTEXT1_CNTL__WRITE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK);
1229
1230         switch (state) {
1231         case AMDGPU_IRQ_STATE_DISABLE:
1232                 /* system context */
1233                 tmp = RREG32(mmVM_CONTEXT0_CNTL);
1234                 tmp &= ~bits;
1235                 WREG32(mmVM_CONTEXT0_CNTL, tmp);
1236                 /* VMs */
1237                 tmp = RREG32(mmVM_CONTEXT1_CNTL);
1238                 tmp &= ~bits;
1239                 WREG32(mmVM_CONTEXT1_CNTL, tmp);
1240                 break;
1241         case AMDGPU_IRQ_STATE_ENABLE:
1242                 /* system context */
1243                 tmp = RREG32(mmVM_CONTEXT0_CNTL);
1244                 tmp |= bits;
1245                 WREG32(mmVM_CONTEXT0_CNTL, tmp);
1246                 /* VMs */
1247                 tmp = RREG32(mmVM_CONTEXT1_CNTL);
1248                 tmp |= bits;
1249                 WREG32(mmVM_CONTEXT1_CNTL, tmp);
1250                 break;
1251         default:
1252                 break;
1253         }
1254
1255         return 0;
1256 }
1257
1258 static int gmc_v7_0_process_interrupt(struct amdgpu_device *adev,
1259                                       struct amdgpu_irq_src *source,
1260                                       struct amdgpu_iv_entry *entry)
1261 {
1262         u32 addr, status, mc_client, vmid;
1263
1264         addr = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_ADDR);
1265         status = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_STATUS);
1266         mc_client = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_MCCLIENT);
1267         /* reset addr and status */
1268         WREG32_P(mmVM_CONTEXT1_CNTL2, 1, ~1);
1269
1270         if (!addr && !status)
1271                 return 0;
1272
1273         amdgpu_vm_update_fault_cache(adev, entry->pasid,
1274                                      ((u64)addr) << AMDGPU_GPU_PAGE_SHIFT, status, AMDGPU_GFXHUB(0));
1275
1276         if (amdgpu_vm_fault_stop == AMDGPU_VM_FAULT_STOP_FIRST)
1277                 gmc_v7_0_set_fault_enable_default(adev, false);
1278
1279         if (printk_ratelimit()) {
1280                 dev_err(adev->dev, "GPU fault detected: %d 0x%08x\n",
1281                         entry->src_id, entry->src_data[0]);
1282                 dev_err(adev->dev, "  VM_CONTEXT1_PROTECTION_FAULT_ADDR   0x%08X\n",
1283                         addr);
1284                 dev_err(adev->dev, "  VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x%08X\n",
1285                         status);
1286                 gmc_v7_0_vm_decode_fault(adev, status, addr, mc_client,
1287                                          entry->pasid);
1288         }
1289
1290         vmid = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS,
1291                              VMID);
1292         if (amdgpu_amdkfd_is_kfd_vmid(adev, vmid)
1293                 && !atomic_read(&adev->gmc.vm_fault_info_updated)) {
1294                 struct kfd_vm_fault_info *info = adev->gmc.vm_fault_info;
1295                 u32 protections = REG_GET_FIELD(status,
1296                                         VM_CONTEXT1_PROTECTION_FAULT_STATUS,
1297                                         PROTECTIONS);
1298
1299                 info->vmid = vmid;
1300                 info->mc_id = REG_GET_FIELD(status,
1301                                             VM_CONTEXT1_PROTECTION_FAULT_STATUS,
1302                                             MEMORY_CLIENT_ID);
1303                 info->status = status;
1304                 info->page_addr = addr;
1305                 info->prot_valid = protections & 0x7 ? true : false;
1306                 info->prot_read = protections & 0x8 ? true : false;
1307                 info->prot_write = protections & 0x10 ? true : false;
1308                 info->prot_exec = protections & 0x20 ? true : false;
1309                 mb();
1310                 atomic_set(&adev->gmc.vm_fault_info_updated, 1);
1311         }
1312
1313         return 0;
1314 }
1315
1316 static int gmc_v7_0_set_clockgating_state(void *handle,
1317                                           enum amd_clockgating_state state)
1318 {
1319         bool gate = false;
1320         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1321
1322         if (state == AMD_CG_STATE_GATE)
1323                 gate = true;
1324
1325         if (!(adev->flags & AMD_IS_APU)) {
1326                 gmc_v7_0_enable_mc_mgcg(adev, gate);
1327                 gmc_v7_0_enable_mc_ls(adev, gate);
1328         }
1329         gmc_v7_0_enable_bif_mgls(adev, gate);
1330         gmc_v7_0_enable_hdp_mgcg(adev, gate);
1331         gmc_v7_0_enable_hdp_ls(adev, gate);
1332
1333         return 0;
1334 }
1335
1336 static int gmc_v7_0_set_powergating_state(void *handle,
1337                                           enum amd_powergating_state state)
1338 {
1339         return 0;
1340 }
1341
1342 static const struct amd_ip_funcs gmc_v7_0_ip_funcs = {
1343         .name = "gmc_v7_0",
1344         .early_init = gmc_v7_0_early_init,
1345         .late_init = gmc_v7_0_late_init,
1346         .sw_init = gmc_v7_0_sw_init,
1347         .sw_fini = gmc_v7_0_sw_fini,
1348         .hw_init = gmc_v7_0_hw_init,
1349         .hw_fini = gmc_v7_0_hw_fini,
1350         .suspend = gmc_v7_0_suspend,
1351         .resume = gmc_v7_0_resume,
1352         .is_idle = gmc_v7_0_is_idle,
1353         .wait_for_idle = gmc_v7_0_wait_for_idle,
1354         .soft_reset = gmc_v7_0_soft_reset,
1355         .set_clockgating_state = gmc_v7_0_set_clockgating_state,
1356         .set_powergating_state = gmc_v7_0_set_powergating_state,
1357 };
1358
1359 static const struct amdgpu_gmc_funcs gmc_v7_0_gmc_funcs = {
1360         .flush_gpu_tlb = gmc_v7_0_flush_gpu_tlb,
1361         .flush_gpu_tlb_pasid = gmc_v7_0_flush_gpu_tlb_pasid,
1362         .emit_flush_gpu_tlb = gmc_v7_0_emit_flush_gpu_tlb,
1363         .emit_pasid_mapping = gmc_v7_0_emit_pasid_mapping,
1364         .set_prt = gmc_v7_0_set_prt,
1365         .get_vm_pde = gmc_v7_0_get_vm_pde,
1366         .get_vm_pte = gmc_v7_0_get_vm_pte,
1367         .get_vbios_fb_size = gmc_v7_0_get_vbios_fb_size,
1368 };
1369
1370 static const struct amdgpu_irq_src_funcs gmc_v7_0_irq_funcs = {
1371         .set = gmc_v7_0_vm_fault_interrupt_state,
1372         .process = gmc_v7_0_process_interrupt,
1373 };
1374
1375 static void gmc_v7_0_set_gmc_funcs(struct amdgpu_device *adev)
1376 {
1377         adev->gmc.gmc_funcs = &gmc_v7_0_gmc_funcs;
1378 }
1379
1380 static void gmc_v7_0_set_irq_funcs(struct amdgpu_device *adev)
1381 {
1382         adev->gmc.vm_fault.num_types = 1;
1383         adev->gmc.vm_fault.funcs = &gmc_v7_0_irq_funcs;
1384 }
1385
1386 const struct amdgpu_ip_block_version gmc_v7_0_ip_block = {
1387         .type = AMD_IP_BLOCK_TYPE_GMC,
1388         .major = 7,
1389         .minor = 0,
1390         .rev = 0,
1391         .funcs = &gmc_v7_0_ip_funcs,
1392 };
1393
1394 const struct amdgpu_ip_block_version gmc_v7_4_ip_block = {
1395         .type = AMD_IP_BLOCK_TYPE_GMC,
1396         .major = 7,
1397         .minor = 4,
1398         .rev = 0,
1399         .funcs = &gmc_v7_0_ip_funcs,
1400 };