drivers/gpu/drm/amd/amdgpu/gmc_v6_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 "gmc_v6_0.h"
  31 #include "amdgpu_ucode.h"
  32 #include "amdgpu_gem.h"
  33
  34 #include "bif/bif_3_0_d.h"
  35 #include "bif/bif_3_0_sh_mask.h"
  36 #include "oss/oss_1_0_d.h"
  37 #include "oss/oss_1_0_sh_mask.h"
  38 #include "gmc/gmc_6_0_d.h"
  39 #include "gmc/gmc_6_0_sh_mask.h"
  40 #include "dce/dce_6_0_d.h"
  41 #include "dce/dce_6_0_sh_mask.h"
  42 #include "si_enums.h"
  43
  44 static void gmc_v6_0_set_gmc_funcs(struct amdgpu_device *adev);
  45 static void gmc_v6_0_set_irq_funcs(struct amdgpu_device *adev);
  46 static int gmc_v6_0_wait_for_idle(void *handle);
  47
  48 MODULE_FIRMWARE("amdgpu/tahiti_mc.bin");
  49 MODULE_FIRMWARE("amdgpu/pitcairn_mc.bin");
  50 MODULE_FIRMWARE("amdgpu/verde_mc.bin");
  51 MODULE_FIRMWARE("amdgpu/oland_mc.bin");
  52 MODULE_FIRMWARE("amdgpu/hainan_mc.bin");
  53 MODULE_FIRMWARE("amdgpu/si58_mc.bin");
  54
  55 #define MC_SEQ_MISC0__MT__MASK   0xf0000000
  56 #define MC_SEQ_MISC0__MT__GDDR1  0x10000000
  57 #define MC_SEQ_MISC0__MT__DDR2   0x20000000
  58 #define MC_SEQ_MISC0__MT__GDDR3  0x30000000
  59 #define MC_SEQ_MISC0__MT__GDDR4  0x40000000
  60 #define MC_SEQ_MISC0__MT__GDDR5  0x50000000
  61 #define MC_SEQ_MISC0__MT__HBM    0x60000000
  62 #define MC_SEQ_MISC0__MT__DDR3   0xB0000000
  63
  64 static void gmc_v6_0_mc_stop(struct amdgpu_device *adev)
  65 {
  66         u32 blackout;
  67
  68         gmc_v6_0_wait_for_idle((void *)adev);
  69
  70         blackout = RREG32(mmMC_SHARED_BLACKOUT_CNTL);
  71         if (REG_GET_FIELD(blackout, MC_SHARED_BLACKOUT_CNTL, BLACKOUT_MODE) != 1) {
  72                 /* Block CPU access */
  73                 WREG32(mmBIF_FB_EN, 0);
  74                 /* blackout the MC */
  75                 blackout = REG_SET_FIELD(blackout,
  76                                          MC_SHARED_BLACKOUT_CNTL, BLACKOUT_MODE, 0);
  77                 WREG32(mmMC_SHARED_BLACKOUT_CNTL, blackout | 1);
  78         }
  79         /* wait for the MC to settle */
  80         udelay(100);
  81
  82 }
  83
  84 static void gmc_v6_0_mc_resume(struct amdgpu_device *adev)
  85 {
  86         u32 tmp;
  87
  88         /* unblackout the MC */
  89         tmp = RREG32(mmMC_SHARED_BLACKOUT_CNTL);
  90         tmp = REG_SET_FIELD(tmp, MC_SHARED_BLACKOUT_CNTL, BLACKOUT_MODE, 0);
  91         WREG32(mmMC_SHARED_BLACKOUT_CNTL, tmp);
  92         /* allow CPU access */
  93         tmp = REG_SET_FIELD(0, BIF_FB_EN, FB_READ_EN, 1);
  94         tmp = REG_SET_FIELD(tmp, BIF_FB_EN, FB_WRITE_EN, 1);
  95         WREG32(mmBIF_FB_EN, tmp);
  96 }
  97
  98 static int gmc_v6_0_init_microcode(struct amdgpu_device *adev)
  99 {
 100         const char *chip_name;
 101         char fw_name[30];
 102         int err;
 103         bool is_58_fw = false;
 104
 105         DRM_DEBUG("\n");
 106
 107         switch (adev->asic_type) {
 108         case CHIP_TAHITI:
 109                 chip_name = "tahiti";
 110                 break;
 111         case CHIP_PITCAIRN:
 112                 chip_name = "pitcairn";
 113                 break;
 114         case CHIP_VERDE:
 115                 chip_name = "verde";
 116                 break;
 117         case CHIP_OLAND:
 118                 chip_name = "oland";
 119                 break;
 120         case CHIP_HAINAN:
 121                 chip_name = "hainan";
 122                 break;
 123         default: BUG();
 124         }
 125
 126         /* this memory configuration requires special firmware */
 127         if (((RREG32(mmMC_SEQ_MISC0) & 0xff000000) >> 24) == 0x58)
 128                 is_58_fw = true;
 129
 130         if (is_58_fw)
 131                 snprintf(fw_name, sizeof(fw_name), "amdgpu/si58_mc.bin");
 132         else
 133                 snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_mc.bin", chip_name);
 134         err = request_firmware(&adev->gmc.fw, fw_name, adev->dev);
 135         if (err)
 136                 goto out;
 137
 138         err = amdgpu_ucode_validate(adev->gmc.fw);
 139
 140 out:
 141         if (err) {
 142                 dev_err(adev->dev,
 143                        "si_mc: Failed to load firmware \"%s\"\n",
 144                        fw_name);
 145                 release_firmware(adev->gmc.fw);
 146                 adev->gmc.fw = NULL;
 147         }
 148         return err;
 149 }
 150
 151 static int gmc_v6_0_mc_load_microcode(struct amdgpu_device *adev)
 152 {
 153         const __le32 *new_fw_data = NULL;
 154         u32 running;
 155         const __le32 *new_io_mc_regs = NULL;
 156         int i, regs_size, ucode_size;
 157         const struct mc_firmware_header_v1_0 *hdr;
 158
 159         if (!adev->gmc.fw)
 160                 return -EINVAL;
 161
 162         hdr = (const struct mc_firmware_header_v1_0 *)adev->gmc.fw->data;
 163
 164         amdgpu_ucode_print_mc_hdr(&hdr->header);
 165
 166         adev->gmc.fw_version = le32_to_cpu(hdr->header.ucode_version);
 167         regs_size = le32_to_cpu(hdr->io_debug_size_bytes) / (4 * 2);
 168         new_io_mc_regs = (const __le32 *)
 169                 (adev->gmc.fw->data + le32_to_cpu(hdr->io_debug_array_offset_bytes));
 170         ucode_size = le32_to_cpu(hdr->header.ucode_size_bytes) / 4;
 171         new_fw_data = (const __le32 *)
 172                 (adev->gmc.fw->data + le32_to_cpu(hdr->header.ucode_array_offset_bytes));
 173
 174         running = RREG32(mmMC_SEQ_SUP_CNTL) & MC_SEQ_SUP_CNTL__RUN_MASK;
 175
 176         if (running == 0) {
 177
 178                 /* reset the engine and set to writable */
 179                 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000008);
 180                 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000010);
 181
 182                 /* load mc io regs */
 183                 for (i = 0; i < regs_size; i++) {
 184                         WREG32(mmMC_SEQ_IO_DEBUG_INDEX, le32_to_cpup(new_io_mc_regs++));
 185                         WREG32(mmMC_SEQ_IO_DEBUG_DATA, le32_to_cpup(new_io_mc_regs++));
 186                 }
 187                 /* load the MC ucode */
 188                 for (i = 0; i < ucode_size; i++) {
 189                         WREG32(mmMC_SEQ_SUP_PGM, le32_to_cpup(new_fw_data++));
 190                 }
 191
 192                 /* put the engine back into the active state */
 193                 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000008);
 194                 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000004);
 195                 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000001);
 196
 197                 /* wait for training to complete */
 198                 for (i = 0; i < adev->usec_timeout; i++) {
 199                         if (RREG32(mmMC_SEQ_TRAIN_WAKEUP_CNTL) & MC_SEQ_TRAIN_WAKEUP_CNTL__TRAIN_DONE_D0_MASK)
 200                                 break;
 201                         udelay(1);
 202                 }
 203                 for (i = 0; i < adev->usec_timeout; i++) {
 204                         if (RREG32(mmMC_SEQ_TRAIN_WAKEUP_CNTL) & MC_SEQ_TRAIN_WAKEUP_CNTL__TRAIN_DONE_D1_MASK)
 205                                 break;
 206                         udelay(1);
 207                 }
 208
 209         }
 210
 211         return 0;
 212 }
 213
 214 static void gmc_v6_0_vram_gtt_location(struct amdgpu_device *adev,
 215                                        struct amdgpu_gmc *mc)
 216 {
 217         u64 base = RREG32(mmMC_VM_FB_LOCATION) & 0xFFFF;
 218         base <<= 24;
 219
 220         amdgpu_gmc_vram_location(adev, mc, base);
 221         amdgpu_gmc_gart_location(adev, mc);
 222 }
 223
 224 static void gmc_v6_0_mc_program(struct amdgpu_device *adev)
 225 {
 226         int i, j;
 227
 228         /* Initialize HDP */
 229         for (i = 0, j = 0; i < 32; i++, j += 0x6) {
 230                 WREG32((0xb05 + j), 0x00000000);
 231                 WREG32((0xb06 + j), 0x00000000);
 232                 WREG32((0xb07 + j), 0x00000000);
 233                 WREG32((0xb08 + j), 0x00000000);
 234                 WREG32((0xb09 + j), 0x00000000);
 235         }
 236         WREG32(mmHDP_REG_COHERENCY_FLUSH_CNTL, 0);
 237
 238         if (gmc_v6_0_wait_for_idle((void *)adev)) {
 239                 dev_warn(adev->dev, "Wait for MC idle timedout !\n");
 240         }
 241
 242         if (adev->mode_info.num_crtc) {
 243                 u32 tmp;
 244
 245                 /* Lockout access through VGA aperture*/
 246                 tmp = RREG32(mmVGA_HDP_CONTROL);
 247                 tmp |= VGA_HDP_CONTROL__VGA_MEMORY_DISABLE_MASK;
 248                 WREG32(mmVGA_HDP_CONTROL, tmp);
 249
 250                 /* disable VGA render */
 251                 tmp = RREG32(mmVGA_RENDER_CONTROL);
 252                 tmp &= ~VGA_VSTATUS_CNTL;
 253                 WREG32(mmVGA_RENDER_CONTROL, tmp);
 254         }
 255         /* Update configuration */
 256         WREG32(mmMC_VM_SYSTEM_APERTURE_LOW_ADDR,
 257                adev->gmc.vram_start >> 12);
 258         WREG32(mmMC_VM_SYSTEM_APERTURE_HIGH_ADDR,
 259                adev->gmc.vram_end >> 12);
 260         WREG32(mmMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR,
 261                adev->vram_scratch.gpu_addr >> 12);
 262         WREG32(mmMC_VM_AGP_BASE, 0);
 263         WREG32(mmMC_VM_AGP_TOP, 0x0FFFFFFF);
 264         WREG32(mmMC_VM_AGP_BOT, 0x0FFFFFFF);
 265
 266         if (gmc_v6_0_wait_for_idle((void *)adev)) {
 267                 dev_warn(adev->dev, "Wait for MC idle timedout !\n");
 268         }
 269 }
 270
 271 static int gmc_v6_0_mc_init(struct amdgpu_device *adev)
 272 {
 273
 274         u32 tmp;
 275         int chansize, numchan;
 276         int r;
 277
 278         tmp = RREG32(mmMC_ARB_RAMCFG);
 279         if (tmp & (1 << 11)) {
 280                 chansize = 16;
 281         } else if (tmp & MC_ARB_RAMCFG__CHANSIZE_MASK) {
 282                 chansize = 64;
 283         } else {
 284                 chansize = 32;
 285         }
 286         tmp = RREG32(mmMC_SHARED_CHMAP);
 287         switch ((tmp & MC_SHARED_CHMAP__NOOFCHAN_MASK) >> MC_SHARED_CHMAP__NOOFCHAN__SHIFT) {
 288         case 0:
 289         default:
 290                 numchan = 1;
 291                 break;
 292         case 1:
 293                 numchan = 2;
 294                 break;
 295         case 2:
 296                 numchan = 4;
 297                 break;
 298         case 3:
 299                 numchan = 8;
 300                 break;
 301         case 4:
 302                 numchan = 3;
 303                 break;
 304         case 5:
 305                 numchan = 6;
 306                 break;
 307         case 6:
 308                 numchan = 10;
 309                 break;
 310         case 7:
 311                 numchan = 12;
 312                 break;
 313         case 8:
 314                 numchan = 16;
 315                 break;
 316         }
 317         adev->gmc.vram_width = numchan * chansize;
 318         /* size in MB on si */
 319         adev->gmc.mc_vram_size = RREG32(mmCONFIG_MEMSIZE) * 1024ULL * 1024ULL;
 320         adev->gmc.real_vram_size = RREG32(mmCONFIG_MEMSIZE) * 1024ULL * 1024ULL;
 321
 322         if (!(adev->flags & AMD_IS_APU)) {
 323                 r = amdgpu_device_resize_fb_bar(adev);
 324                 if (r)
 325                         return r;
 326         }
 327         adev->gmc.aper_base = pci_resource_start(adev->pdev, 0);
 328         adev->gmc.aper_size = pci_resource_len(adev->pdev, 0);
 329         adev->gmc.visible_vram_size = adev->gmc.aper_size;
 330
 331         /* set the gart size */
 332         if (amdgpu_gart_size == -1) {
 333                 switch (adev->asic_type) {
 334                 case CHIP_HAINAN:    /* no MM engines */
 335                 default:
 336                         adev->gmc.gart_size = 256ULL << 20;
 337                         break;
 338                 case CHIP_VERDE:    /* UVD, VCE do not support GPUVM */
 339                 case CHIP_TAHITI:   /* UVD, VCE do not support GPUVM */
 340                 case CHIP_PITCAIRN: /* UVD, VCE do not support GPUVM */
 341                 case CHIP_OLAND:    /* UVD, VCE do not support GPUVM */
 342                         adev->gmc.gart_size = 1024ULL << 20;
 343                         break;
 344                 }
 345         } else {
 346                 adev->gmc.gart_size = (u64)amdgpu_gart_size << 20;
 347         }
 348
 349         gmc_v6_0_vram_gtt_location(adev, &adev->gmc);
 350
 351         return 0;
 352 }
 353
 354 static void gmc_v6_0_flush_gpu_tlb(struct amdgpu_device *adev, uint32_t vmid,
 355                                         uint32_t vmhub, uint32_t flush_type)
 356 {
 357         WREG32(mmVM_INVALIDATE_REQUEST, 1 << vmid);
 358 }
 359
 360 static uint64_t gmc_v6_0_emit_flush_gpu_tlb(struct amdgpu_ring *ring,
 361                                             unsigned vmid, uint64_t pd_addr)
 362 {
 363         uint32_t reg;
 364
 365         /* write new base address */
 366         if (vmid < 8)
 367                 reg = mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR + vmid;
 368         else
 369                 reg = mmVM_CONTEXT8_PAGE_TABLE_BASE_ADDR + (vmid - 8);
 370         amdgpu_ring_emit_wreg(ring, reg, pd_addr >> 12);
 371
 372         /* bits 0-15 are the VM contexts0-15 */
 373         amdgpu_ring_emit_wreg(ring, mmVM_INVALIDATE_REQUEST, 1 << vmid);
 374
 375         return pd_addr;
 376 }
 377
 378 static void gmc_v6_0_get_vm_pde(struct amdgpu_device *adev, int level,
 379                                 uint64_t *addr, uint64_t *flags)
 380 {
 381         BUG_ON(*addr & 0xFFFFFF0000000FFFULL);
 382 }
 383
 384 static void gmc_v6_0_get_vm_pte(struct amdgpu_device *adev,
 385                                 struct amdgpu_bo_va_mapping *mapping,
 386                                 uint64_t *flags)
 387 {
 388         *flags &= ~AMDGPU_PTE_EXECUTABLE;
 389         *flags &= ~AMDGPU_PTE_PRT;
 390 }
 391
 392 static void gmc_v6_0_set_fault_enable_default(struct amdgpu_device *adev,
 393                                               bool value)
 394 {
 395         u32 tmp;
 396
 397         tmp = RREG32(mmVM_CONTEXT1_CNTL);
 398         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 399                             RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 400         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 401                             DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 402         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 403                             PDE0_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 404         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 405                             VALID_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 406         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 407                             READ_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 408         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 409                             WRITE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 410         WREG32(mmVM_CONTEXT1_CNTL, tmp);
 411 }
 412
 413  /**
 414    + * gmc_v8_0_set_prt - set PRT VM fault
 415    + *
 416    + * @adev: amdgpu_device pointer
 417    + * @enable: enable/disable VM fault handling for PRT
 418    +*/
 419 static void gmc_v6_0_set_prt(struct amdgpu_device *adev, bool enable)
 420 {
 421         u32 tmp;
 422
 423         if (enable && !adev->gmc.prt_warning) {
 424                 dev_warn(adev->dev, "Disabling VM faults because of PRT request!\n");
 425                 adev->gmc.prt_warning = true;
 426         }
 427
 428         tmp = RREG32(mmVM_PRT_CNTL);
 429         tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
 430                             CB_DISABLE_FAULT_ON_UNMAPPED_ACCESS,
 431                             enable);
 432         tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
 433                             TC_DISABLE_FAULT_ON_UNMAPPED_ACCESS,
 434                             enable);
 435         tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
 436                             L2_CACHE_STORE_INVALID_ENTRIES,
 437                             enable);
 438         tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
 439                             L1_TLB_STORE_INVALID_ENTRIES,
 440                             enable);
 441         WREG32(mmVM_PRT_CNTL, tmp);
 442
 443         if (enable) {
 444                 uint32_t low = AMDGPU_VA_RESERVED_SIZE >> AMDGPU_GPU_PAGE_SHIFT;
 445                 uint32_t high = adev->vm_manager.max_pfn -
 446                         (AMDGPU_VA_RESERVED_SIZE >> AMDGPU_GPU_PAGE_SHIFT);
 447
 448                 WREG32(mmVM_PRT_APERTURE0_LOW_ADDR, low);
 449                 WREG32(mmVM_PRT_APERTURE1_LOW_ADDR, low);
 450                 WREG32(mmVM_PRT_APERTURE2_LOW_ADDR, low);
 451                 WREG32(mmVM_PRT_APERTURE3_LOW_ADDR, low);
 452                 WREG32(mmVM_PRT_APERTURE0_HIGH_ADDR, high);
 453                 WREG32(mmVM_PRT_APERTURE1_HIGH_ADDR, high);
 454                 WREG32(mmVM_PRT_APERTURE2_HIGH_ADDR, high);
 455                 WREG32(mmVM_PRT_APERTURE3_HIGH_ADDR, high);
 456         } else {
 457                 WREG32(mmVM_PRT_APERTURE0_LOW_ADDR, 0xfffffff);
 458                 WREG32(mmVM_PRT_APERTURE1_LOW_ADDR, 0xfffffff);
 459                 WREG32(mmVM_PRT_APERTURE2_LOW_ADDR, 0xfffffff);
 460                 WREG32(mmVM_PRT_APERTURE3_LOW_ADDR, 0xfffffff);
 461                 WREG32(mmVM_PRT_APERTURE0_HIGH_ADDR, 0x0);
 462                 WREG32(mmVM_PRT_APERTURE1_HIGH_ADDR, 0x0);
 463                 WREG32(mmVM_PRT_APERTURE2_HIGH_ADDR, 0x0);
 464                 WREG32(mmVM_PRT_APERTURE3_HIGH_ADDR, 0x0);
 465         }
 466 }
 467
 468 static int gmc_v6_0_gart_enable(struct amdgpu_device *adev)
 469 {
 470         uint64_t table_addr;
 471         int r, i;
 472         u32 field;
 473
 474         if (adev->gart.bo == NULL) {
 475                 dev_err(adev->dev, "No VRAM object for PCIE GART.\n");
 476                 return -EINVAL;
 477         }
 478         r = amdgpu_gart_table_vram_pin(adev);
 479         if (r)
 480                 return r;
 481
 482         table_addr = amdgpu_bo_gpu_offset(adev->gart.bo);
 483
 484         /* Setup TLB control */
 485         WREG32(mmMC_VM_MX_L1_TLB_CNTL,
 486                (0xA << 7) |
 487                MC_VM_MX_L1_TLB_CNTL__ENABLE_L1_TLB_MASK |
 488                MC_VM_MX_L1_TLB_CNTL__ENABLE_L1_FRAGMENT_PROCESSING_MASK |
 489                MC_VM_MX_L1_TLB_CNTL__SYSTEM_ACCESS_MODE_MASK |
 490                MC_VM_MX_L1_TLB_CNTL__ENABLE_ADVANCED_DRIVER_MODEL_MASK |
 491                (0UL << MC_VM_MX_L1_TLB_CNTL__SYSTEM_APERTURE_UNMAPPED_ACCESS__SHIFT));
 492         /* Setup L2 cache */
 493         WREG32(mmVM_L2_CNTL,
 494                VM_L2_CNTL__ENABLE_L2_CACHE_MASK |
 495                VM_L2_CNTL__ENABLE_L2_FRAGMENT_PROCESSING_MASK |
 496                VM_L2_CNTL__ENABLE_L2_PTE_CACHE_LRU_UPDATE_BY_WRITE_MASK |
 497                VM_L2_CNTL__ENABLE_L2_PDE0_CACHE_LRU_UPDATE_BY_WRITE_MASK |
 498                (7UL << VM_L2_CNTL__EFFECTIVE_L2_QUEUE_SIZE__SHIFT) |
 499                (1UL << VM_L2_CNTL__CONTEXT1_IDENTITY_ACCESS_MODE__SHIFT));
 500         WREG32(mmVM_L2_CNTL2,
 501                VM_L2_CNTL2__INVALIDATE_ALL_L1_TLBS_MASK |
 502                VM_L2_CNTL2__INVALIDATE_L2_CACHE_MASK);
 503
 504         field = adev->vm_manager.fragment_size;
 505         WREG32(mmVM_L2_CNTL3,
 506                VM_L2_CNTL3__L2_CACHE_BIGK_ASSOCIATIVITY_MASK |
 507                (field << VM_L2_CNTL3__BANK_SELECT__SHIFT) |
 508                (field << VM_L2_CNTL3__L2_CACHE_BIGK_FRAGMENT_SIZE__SHIFT));
 509         /* setup context0 */
 510         WREG32(mmVM_CONTEXT0_PAGE_TABLE_START_ADDR, adev->gmc.gart_start >> 12);
 511         WREG32(mmVM_CONTEXT0_PAGE_TABLE_END_ADDR, adev->gmc.gart_end >> 12);
 512         WREG32(mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR, table_addr >> 12);
 513         WREG32(mmVM_CONTEXT0_PROTECTION_FAULT_DEFAULT_ADDR,
 514                         (u32)(adev->dummy_page_addr >> 12));
 515         WREG32(mmVM_CONTEXT0_CNTL2, 0);
 516         WREG32(mmVM_CONTEXT0_CNTL,
 517                VM_CONTEXT0_CNTL__ENABLE_CONTEXT_MASK |
 518                (0UL << VM_CONTEXT0_CNTL__PAGE_TABLE_DEPTH__SHIFT) |
 519                VM_CONTEXT0_CNTL__RANGE_PROTECTION_FAULT_ENABLE_DEFAULT_MASK);
 520
 521         WREG32(0x575, 0);
 522         WREG32(0x576, 0);
 523         WREG32(0x577, 0);
 524
 525         /* empty context1-15 */
 526         /* set vm size, must be a multiple of 4 */
 527         WREG32(mmVM_CONTEXT1_PAGE_TABLE_START_ADDR, 0);
 528         WREG32(mmVM_CONTEXT1_PAGE_TABLE_END_ADDR, adev->vm_manager.max_pfn - 1);
 529         /* Assign the pt base to something valid for now; the pts used for
 530          * the VMs are determined by the application and setup and assigned
 531          * on the fly in the vm part of radeon_gart.c
 532          */
 533         for (i = 1; i < 16; i++) {
 534                 if (i < 8)
 535                         WREG32(mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR + i,
 536                                table_addr >> 12);
 537                 else
 538                         WREG32(mmVM_CONTEXT8_PAGE_TABLE_BASE_ADDR + i - 8,
 539                                table_addr >> 12);
 540         }
 541
 542         /* enable context1-15 */
 543         WREG32(mmVM_CONTEXT1_PROTECTION_FAULT_DEFAULT_ADDR,
 544                (u32)(adev->dummy_page_addr >> 12));
 545         WREG32(mmVM_CONTEXT1_CNTL2, 4);
 546         WREG32(mmVM_CONTEXT1_CNTL,
 547                VM_CONTEXT1_CNTL__ENABLE_CONTEXT_MASK |
 548                (1UL << VM_CONTEXT1_CNTL__PAGE_TABLE_DEPTH__SHIFT) |
 549                ((adev->vm_manager.block_size - 9)
 550                << VM_CONTEXT1_CNTL__PAGE_TABLE_BLOCK_SIZE__SHIFT));
 551         if (amdgpu_vm_fault_stop == AMDGPU_VM_FAULT_STOP_ALWAYS)
 552                 gmc_v6_0_set_fault_enable_default(adev, false);
 553         else
 554                 gmc_v6_0_set_fault_enable_default(adev, true);
 555
 556         gmc_v6_0_flush_gpu_tlb(adev, 0, 0, 0);
 557         dev_info(adev->dev, "PCIE GART of %uM enabled (table at 0x%016llX).\n",
 558                  (unsigned)(adev->gmc.gart_size >> 20),
 559                  (unsigned long long)table_addr);
 560         adev->gart.ready = true;
 561         return 0;
 562 }
 563
 564 static int gmc_v6_0_gart_init(struct amdgpu_device *adev)
 565 {
 566         int r;
 567
 568         if (adev->gart.bo) {
 569                 dev_warn(adev->dev, "gmc_v6_0 PCIE GART already initialized\n");
 570                 return 0;
 571         }
 572         r = amdgpu_gart_init(adev);
 573         if (r)
 574                 return r;
 575         adev->gart.table_size = adev->gart.num_gpu_pages * 8;
 576         adev->gart.gart_pte_flags = 0;
 577         return amdgpu_gart_table_vram_alloc(adev);
 578 }
 579
 580 static void gmc_v6_0_gart_disable(struct amdgpu_device *adev)
 581 {
 582         /*unsigned i;
 583
 584         for (i = 1; i < 16; ++i) {
 585                 uint32_t reg;
 586                 if (i < 8)
 587                         reg = VM_CONTEXT0_PAGE_TABLE_BASE_ADDR + i ;
 588                 else
 589                         reg = VM_CONTEXT8_PAGE_TABLE_BASE_ADDR + (i - 8);
 590                 adev->vm_manager.saved_table_addr[i] = RREG32(reg);
 591         }*/
 592
 593         /* Disable all tables */
 594         WREG32(mmVM_CONTEXT0_CNTL, 0);
 595         WREG32(mmVM_CONTEXT1_CNTL, 0);
 596         /* Setup TLB control */
 597         WREG32(mmMC_VM_MX_L1_TLB_CNTL,
 598                MC_VM_MX_L1_TLB_CNTL__SYSTEM_ACCESS_MODE_MASK |
 599                (0UL << MC_VM_MX_L1_TLB_CNTL__SYSTEM_APERTURE_UNMAPPED_ACCESS__SHIFT));
 600         /* Setup L2 cache */
 601         WREG32(mmVM_L2_CNTL,
 602                VM_L2_CNTL__ENABLE_L2_PTE_CACHE_LRU_UPDATE_BY_WRITE_MASK |
 603                VM_L2_CNTL__ENABLE_L2_PDE0_CACHE_LRU_UPDATE_BY_WRITE_MASK |
 604                (7UL << VM_L2_CNTL__EFFECTIVE_L2_QUEUE_SIZE__SHIFT) |
 605                (1UL << VM_L2_CNTL__CONTEXT1_IDENTITY_ACCESS_MODE__SHIFT));
 606         WREG32(mmVM_L2_CNTL2, 0);
 607         WREG32(mmVM_L2_CNTL3,
 608                VM_L2_CNTL3__L2_CACHE_BIGK_ASSOCIATIVITY_MASK |
 609                (0UL << VM_L2_CNTL3__L2_CACHE_BIGK_FRAGMENT_SIZE__SHIFT));
 610         amdgpu_gart_table_vram_unpin(adev);
 611 }
 612
 613 static void gmc_v6_0_vm_decode_fault(struct amdgpu_device *adev,
 614                                      u32 status, u32 addr, u32 mc_client)
 615 {
 616         u32 mc_id;
 617         u32 vmid = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS, VMID);
 618         u32 protections = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS,
 619                                         PROTECTIONS);
 620         char block[5] = { mc_client >> 24, (mc_client >> 16) & 0xff,
 621                 (mc_client >> 8) & 0xff, mc_client & 0xff, 0 };
 622
 623         mc_id = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS,
 624                               MEMORY_CLIENT_ID);
 625
 626         dev_err(adev->dev, "VM fault (0x%02x, vmid %d) at page %u, %s from '%s' (0x%08x) (%d)\n",
 627                protections, vmid, addr,
 628                REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS,
 629                              MEMORY_CLIENT_RW) ?
 630                "write" : "read", block, mc_client, mc_id);
 631 }
 632
 633 /*
 634 static const u32 mc_cg_registers[] = {
 635         MC_HUB_MISC_HUB_CG,
 636         MC_HUB_MISC_SIP_CG,
 637         MC_HUB_MISC_VM_CG,
 638         MC_XPB_CLK_GAT,
 639         ATC_MISC_CG,
 640         MC_CITF_MISC_WR_CG,
 641         MC_CITF_MISC_RD_CG,
 642         MC_CITF_MISC_VM_CG,
 643         VM_L2_CG,
 644 };
 645
 646 static const u32 mc_cg_ls_en[] = {
 647         MC_HUB_MISC_HUB_CG__MEM_LS_ENABLE_MASK,
 648         MC_HUB_MISC_SIP_CG__MEM_LS_ENABLE_MASK,
 649         MC_HUB_MISC_VM_CG__MEM_LS_ENABLE_MASK,
 650         MC_XPB_CLK_GAT__MEM_LS_ENABLE_MASK,
 651         ATC_MISC_CG__MEM_LS_ENABLE_MASK,
 652         MC_CITF_MISC_WR_CG__MEM_LS_ENABLE_MASK,
 653         MC_CITF_MISC_RD_CG__MEM_LS_ENABLE_MASK,
 654         MC_CITF_MISC_VM_CG__MEM_LS_ENABLE_MASK,
 655         VM_L2_CG__MEM_LS_ENABLE_MASK,
 656 };
 657
 658 static const u32 mc_cg_en[] = {
 659         MC_HUB_MISC_HUB_CG__ENABLE_MASK,
 660         MC_HUB_MISC_SIP_CG__ENABLE_MASK,
 661         MC_HUB_MISC_VM_CG__ENABLE_MASK,
 662         MC_XPB_CLK_GAT__ENABLE_MASK,
 663         ATC_MISC_CG__ENABLE_MASK,
 664         MC_CITF_MISC_WR_CG__ENABLE_MASK,
 665         MC_CITF_MISC_RD_CG__ENABLE_MASK,
 666         MC_CITF_MISC_VM_CG__ENABLE_MASK,
 667         VM_L2_CG__ENABLE_MASK,
 668 };
 669
 670 static void gmc_v6_0_enable_mc_ls(struct amdgpu_device *adev,
 671                                   bool enable)
 672 {
 673         int i;
 674         u32 orig, data;
 675
 676         for (i = 0; i < ARRAY_SIZE(mc_cg_registers); i++) {
 677                 orig = data = RREG32(mc_cg_registers[i]);
 678                 if (enable && (adev->cg_flags & AMDGPU_CG_SUPPORT_MC_LS))
 679                         data |= mc_cg_ls_en[i];
 680                 else
 681                         data &= ~mc_cg_ls_en[i];
 682                 if (data != orig)
 683                         WREG32(mc_cg_registers[i], data);
 684         }
 685 }
 686
 687 static void gmc_v6_0_enable_mc_mgcg(struct amdgpu_device *adev,
 688                                     bool enable)
 689 {
 690         int i;
 691         u32 orig, data;
 692
 693         for (i = 0; i < ARRAY_SIZE(mc_cg_registers); i++) {
 694                 orig = data = RREG32(mc_cg_registers[i]);
 695                 if (enable && (adev->cg_flags & AMDGPU_CG_SUPPORT_MC_MGCG))
 696                         data |= mc_cg_en[i];
 697                 else
 698                         data &= ~mc_cg_en[i];
 699                 if (data != orig)
 700                         WREG32(mc_cg_registers[i], data);
 701         }
 702 }
 703
 704 static void gmc_v6_0_enable_bif_mgls(struct amdgpu_device *adev,
 705                                      bool enable)
 706 {
 707         u32 orig, data;
 708
 709         orig = data = RREG32_PCIE(ixPCIE_CNTL2);
 710
 711         if (enable && (adev->cg_flags & AMDGPU_CG_SUPPORT_BIF_LS)) {
 712                 data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_LS_EN, 1);
 713                 data = REG_SET_FIELD(data, PCIE_CNTL2, MST_MEM_LS_EN, 1);
 714                 data = REG_SET_FIELD(data, PCIE_CNTL2, REPLAY_MEM_LS_EN, 1);
 715                 data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_AGGRESSIVE_LS_EN, 1);
 716         } else {
 717                 data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_LS_EN, 0);
 718                 data = REG_SET_FIELD(data, PCIE_CNTL2, MST_MEM_LS_EN, 0);
 719                 data = REG_SET_FIELD(data, PCIE_CNTL2, REPLAY_MEM_LS_EN, 0);
 720                 data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_AGGRESSIVE_LS_EN, 0);
 721         }
 722
 723         if (orig != data)
 724                 WREG32_PCIE(ixPCIE_CNTL2, data);
 725 }
 726
 727 static void gmc_v6_0_enable_hdp_mgcg(struct amdgpu_device *adev,
 728                                      bool enable)
 729 {
 730         u32 orig, data;
 731
 732         orig = data = RREG32(mmHDP_HOST_PATH_CNTL);
 733
 734         if (enable && (adev->cg_flags & AMDGPU_CG_SUPPORT_HDP_MGCG))
 735                 data = REG_SET_FIELD(data, HDP_HOST_PATH_CNTL, CLOCK_GATING_DIS, 0);
 736         else
 737                 data = REG_SET_FIELD(data, HDP_HOST_PATH_CNTL, CLOCK_GATING_DIS, 1);
 738
 739         if (orig != data)
 740                 WREG32(mmHDP_HOST_PATH_CNTL, data);
 741 }
 742
 743 static void gmc_v6_0_enable_hdp_ls(struct amdgpu_device *adev,
 744                                    bool enable)
 745 {
 746         u32 orig, data;
 747
 748         orig = data = RREG32(mmHDP_MEM_POWER_LS);
 749
 750         if (enable && (adev->cg_flags & AMDGPU_CG_SUPPORT_HDP_LS))
 751                 data = REG_SET_FIELD(data, HDP_MEM_POWER_LS, LS_ENABLE, 1);
 752         else
 753                 data = REG_SET_FIELD(data, HDP_MEM_POWER_LS, LS_ENABLE, 0);
 754
 755         if (orig != data)
 756                 WREG32(mmHDP_MEM_POWER_LS, data);
 757 }
 758 */
 759
 760 static int gmc_v6_0_convert_vram_type(int mc_seq_vram_type)
 761 {
 762         switch (mc_seq_vram_type) {
 763         case MC_SEQ_MISC0__MT__GDDR1:
 764                 return AMDGPU_VRAM_TYPE_GDDR1;
 765         case MC_SEQ_MISC0__MT__DDR2:
 766                 return AMDGPU_VRAM_TYPE_DDR2;
 767         case MC_SEQ_MISC0__MT__GDDR3:
 768                 return AMDGPU_VRAM_TYPE_GDDR3;
 769         case MC_SEQ_MISC0__MT__GDDR4:
 770                 return AMDGPU_VRAM_TYPE_GDDR4;
 771         case MC_SEQ_MISC0__MT__GDDR5:
 772                 return AMDGPU_VRAM_TYPE_GDDR5;
 773         case MC_SEQ_MISC0__MT__DDR3:
 774                 return AMDGPU_VRAM_TYPE_DDR3;
 775         default:
 776                 return AMDGPU_VRAM_TYPE_UNKNOWN;
 777         }
 778 }
 779
 780 static int gmc_v6_0_early_init(void *handle)
 781 {
 782         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 783
 784         gmc_v6_0_set_gmc_funcs(adev);
 785         gmc_v6_0_set_irq_funcs(adev);
 786
 787         return 0;
 788 }
 789
 790 static int gmc_v6_0_late_init(void *handle)
 791 {
 792         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 793
 794         amdgpu_bo_late_init(adev);
 795
 796         if (amdgpu_vm_fault_stop != AMDGPU_VM_FAULT_STOP_ALWAYS)
 797                 return amdgpu_irq_get(adev, &adev->gmc.vm_fault, 0);
 798         else
 799                 return 0;
 800 }
 801
 802 static unsigned gmc_v6_0_get_vbios_fb_size(struct amdgpu_device *adev)
 803 {
 804         u32 d1vga_control = RREG32(mmD1VGA_CONTROL);
 805         unsigned size;
 806
 807         if (REG_GET_FIELD(d1vga_control, D1VGA_CONTROL, D1VGA_MODE_ENABLE)) {
 808                 size = 9 * 1024 * 1024; /* reserve 8MB for vga emulator and 1 MB for FB */
 809         } else {
 810                 u32 viewport = RREG32(mmVIEWPORT_SIZE);
 811                 size = (REG_GET_FIELD(viewport, VIEWPORT_SIZE, VIEWPORT_HEIGHT) *
 812                         REG_GET_FIELD(viewport, VIEWPORT_SIZE, VIEWPORT_WIDTH) *
 813                         4);
 814         }
 815         /* return 0 if the pre-OS buffer uses up most of vram */
 816         if ((adev->gmc.real_vram_size - size) < (8 * 1024 * 1024))
 817                 return 0;
 818         return size;
 819 }
 820
 821 static int gmc_v6_0_sw_init(void *handle)
 822 {
 823         int r;
 824         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 825
 826         adev->num_vmhubs = 1;
 827
 828         if (adev->flags & AMD_IS_APU) {
 829                 adev->gmc.vram_type = AMDGPU_VRAM_TYPE_UNKNOWN;
 830         } else {
 831                 u32 tmp = RREG32(mmMC_SEQ_MISC0);
 832                 tmp &= MC_SEQ_MISC0__MT__MASK;
 833                 adev->gmc.vram_type = gmc_v6_0_convert_vram_type(tmp);
 834         }
 835
 836         r = amdgpu_irq_add_id(adev, AMDGPU_IRQ_CLIENTID_LEGACY, 146, &adev->gmc.vm_fault);
 837         if (r)
 838                 return r;
 839
 840         r = amdgpu_irq_add_id(adev, AMDGPU_IRQ_CLIENTID_LEGACY, 147, &adev->gmc.vm_fault);
 841         if (r)
 842                 return r;
 843
 844         amdgpu_vm_adjust_size(adev, 64, 9, 1, 40);
 845
 846         adev->gmc.mc_mask = 0xffffffffffULL;
 847
 848         r = dma_set_mask_and_coherent(adev->dev, DMA_BIT_MASK(44));
 849         if (r) {
 850                 dev_warn(adev->dev, "No suitable DMA available.\n");
 851                 return r;
 852         }
 853         adev->need_swiotlb = drm_need_swiotlb(44);
 854
 855         r = gmc_v6_0_init_microcode(adev);
 856         if (r) {
 857                 dev_err(adev->dev, "Failed to load mc firmware!\n");
 858                 return r;
 859         }
 860
 861         r = gmc_v6_0_mc_init(adev);
 862         if (r)
 863                 return r;
 864
 865         adev->gmc.stolen_size = gmc_v6_0_get_vbios_fb_size(adev);
 866
 867         r = amdgpu_bo_init(adev);
 868         if (r)
 869                 return r;
 870
 871         r = gmc_v6_0_gart_init(adev);
 872         if (r)
 873                 return r;
 874
 875         /*
 876          * number of VMs
 877          * VMID 0 is reserved for System
 878          * amdgpu graphics/compute will use VMIDs 1-7
 879          * amdkfd will use VMIDs 8-15
 880          */
 881         adev->vm_manager.first_kfd_vmid = 8;
 882         amdgpu_vm_manager_init(adev);
 883
 884         /* base offset of vram pages */
 885         if (adev->flags & AMD_IS_APU) {
 886                 u64 tmp = RREG32(mmMC_VM_FB_OFFSET);
 887
 888                 tmp <<= 22;
 889                 adev->vm_manager.vram_base_offset = tmp;
 890         } else {
 891                 adev->vm_manager.vram_base_offset = 0;
 892         }
 893
 894         return 0;
 895 }
 896
 897 static int gmc_v6_0_sw_fini(void *handle)
 898 {
 899         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 900
 901         amdgpu_gem_force_release(adev);
 902         amdgpu_vm_manager_fini(adev);
 903         amdgpu_gart_table_vram_free(adev);
 904         amdgpu_bo_fini(adev);
 905         amdgpu_gart_fini(adev);
 906         release_firmware(adev->gmc.fw);
 907         adev->gmc.fw = NULL;
 908
 909         return 0;
 910 }
 911
 912 static int gmc_v6_0_hw_init(void *handle)
 913 {
 914         int r;
 915         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 916
 917         gmc_v6_0_mc_program(adev);
 918
 919         if (!(adev->flags & AMD_IS_APU)) {
 920                 r = gmc_v6_0_mc_load_microcode(adev);
 921                 if (r) {
 922                         dev_err(adev->dev, "Failed to load MC firmware!\n");
 923                         return r;
 924                 }
 925         }
 926
 927         r = gmc_v6_0_gart_enable(adev);
 928         if (r)
 929                 return r;
 930
 931         return r;
 932 }
 933
 934 static int gmc_v6_0_hw_fini(void *handle)
 935 {
 936         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 937
 938         amdgpu_irq_put(adev, &adev->gmc.vm_fault, 0);
 939         gmc_v6_0_gart_disable(adev);
 940
 941         return 0;
 942 }
 943
 944 static int gmc_v6_0_suspend(void *handle)
 945 {
 946         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 947
 948         gmc_v6_0_hw_fini(adev);
 949
 950         return 0;
 951 }
 952
 953 static int gmc_v6_0_resume(void *handle)
 954 {
 955         int r;
 956         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 957
 958         r = gmc_v6_0_hw_init(adev);
 959         if (r)
 960                 return r;
 961
 962         amdgpu_vmid_reset_all(adev);
 963
 964         return 0;
 965 }
 966
 967 static bool gmc_v6_0_is_idle(void *handle)
 968 {
 969         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 970         u32 tmp = RREG32(mmSRBM_STATUS);
 971
 972         if (tmp & (SRBM_STATUS__MCB_BUSY_MASK | SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK |
 973                    SRBM_STATUS__MCC_BUSY_MASK | SRBM_STATUS__MCD_BUSY_MASK | SRBM_STATUS__VMC_BUSY_MASK))
 974                 return false;
 975
 976         return true;
 977 }
 978
 979 static int gmc_v6_0_wait_for_idle(void *handle)
 980 {
 981         unsigned i;
 982         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 983
 984         for (i = 0; i < adev->usec_timeout; i++) {
 985                 if (gmc_v6_0_is_idle(handle))
 986                         return 0;
 987                 udelay(1);
 988         }
 989         return -ETIMEDOUT;
 990
 991 }
 992
 993 static int gmc_v6_0_soft_reset(void *handle)
 994 {
 995         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 996         u32 srbm_soft_reset = 0;
 997         u32 tmp = RREG32(mmSRBM_STATUS);
 998
 999         if (tmp & SRBM_STATUS__VMC_BUSY_MASK)
1000                 srbm_soft_reset = REG_SET_FIELD(srbm_soft_reset,
1001                                                 SRBM_SOFT_RESET, SOFT_RESET_VMC, 1);
1002
1003         if (tmp & (SRBM_STATUS__MCB_BUSY_MASK | SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK |
1004                    SRBM_STATUS__MCC_BUSY_MASK | SRBM_STATUS__MCD_BUSY_MASK)) {
1005                 if (!(adev->flags & AMD_IS_APU))
1006                         srbm_soft_reset = REG_SET_FIELD(srbm_soft_reset,
1007                                                         SRBM_SOFT_RESET, SOFT_RESET_MC, 1);
1008         }
1009
1010         if (srbm_soft_reset) {
1011                 gmc_v6_0_mc_stop(adev);
1012                 if (gmc_v6_0_wait_for_idle(adev)) {
1013                         dev_warn(adev->dev, "Wait for GMC idle timed out !\n");
1014                 }
1015
1016
1017                 tmp = RREG32(mmSRBM_SOFT_RESET);
1018                 tmp |= srbm_soft_reset;
1019                 dev_info(adev->dev, "SRBM_SOFT_RESET=0x%08X\n", tmp);
1020                 WREG32(mmSRBM_SOFT_RESET, tmp);
1021                 tmp = RREG32(mmSRBM_SOFT_RESET);
1022
1023                 udelay(50);
1024
1025                 tmp &= ~srbm_soft_reset;
1026                 WREG32(mmSRBM_SOFT_RESET, tmp);
1027                 tmp = RREG32(mmSRBM_SOFT_RESET);
1028
1029                 udelay(50);
1030
1031                 gmc_v6_0_mc_resume(adev);
1032                 udelay(50);
1033         }
1034
1035         return 0;
1036 }
1037
1038 static int gmc_v6_0_vm_fault_interrupt_state(struct amdgpu_device *adev,
1039                                              struct amdgpu_irq_src *src,
1040                                              unsigned type,
1041                                              enum amdgpu_interrupt_state state)
1042 {
1043         u32 tmp;
1044         u32 bits = (VM_CONTEXT1_CNTL__RANGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1045                     VM_CONTEXT1_CNTL__DUMMY_PAGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1046                     VM_CONTEXT1_CNTL__PDE0_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1047                     VM_CONTEXT1_CNTL__VALID_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1048                     VM_CONTEXT1_CNTL__READ_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1049                     VM_CONTEXT1_CNTL__WRITE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK);
1050
1051         switch (state) {
1052         case AMDGPU_IRQ_STATE_DISABLE:
1053                 tmp = RREG32(mmVM_CONTEXT0_CNTL);
1054                 tmp &= ~bits;
1055                 WREG32(mmVM_CONTEXT0_CNTL, tmp);
1056                 tmp = RREG32(mmVM_CONTEXT1_CNTL);
1057                 tmp &= ~bits;
1058                 WREG32(mmVM_CONTEXT1_CNTL, tmp);
1059                 break;
1060         case AMDGPU_IRQ_STATE_ENABLE:
1061                 tmp = RREG32(mmVM_CONTEXT0_CNTL);
1062                 tmp |= bits;
1063                 WREG32(mmVM_CONTEXT0_CNTL, tmp);
1064                 tmp = RREG32(mmVM_CONTEXT1_CNTL);
1065                 tmp |= bits;
1066                 WREG32(mmVM_CONTEXT1_CNTL, tmp);
1067                 break;
1068         default:
1069                 break;
1070         }
1071
1072         return 0;
1073 }
1074
1075 static int gmc_v6_0_process_interrupt(struct amdgpu_device *adev,
1076                                       struct amdgpu_irq_src *source,
1077                                       struct amdgpu_iv_entry *entry)
1078 {
1079         u32 addr, status;
1080
1081         addr = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_ADDR);
1082         status = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_STATUS);
1083         WREG32_P(mmVM_CONTEXT1_CNTL2, 1, ~1);
1084
1085         if (!addr && !status)
1086                 return 0;
1087
1088         if (amdgpu_vm_fault_stop == AMDGPU_VM_FAULT_STOP_FIRST)
1089                 gmc_v6_0_set_fault_enable_default(adev, false);
1090
1091         if (printk_ratelimit()) {
1092                 dev_err(adev->dev, "GPU fault detected: %d 0x%08x\n",
1093                         entry->src_id, entry->src_data[0]);
1094                 dev_err(adev->dev, "  VM_CONTEXT1_PROTECTION_FAULT_ADDR   0x%08X\n",
1095                         addr);
1096                 dev_err(adev->dev, "  VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x%08X\n",
1097                         status);
1098                 gmc_v6_0_vm_decode_fault(adev, status, addr, 0);
1099         }
1100
1101         return 0;
1102 }
1103
1104 static int gmc_v6_0_set_clockgating_state(void *handle,
1105                                           enum amd_clockgating_state state)
1106 {
1107         return 0;
1108 }
1109
1110 static int gmc_v6_0_set_powergating_state(void *handle,
1111                                           enum amd_powergating_state state)
1112 {
1113         return 0;
1114 }
1115
1116 static const struct amd_ip_funcs gmc_v6_0_ip_funcs = {
1117         .name = "gmc_v6_0",
1118         .early_init = gmc_v6_0_early_init,
1119         .late_init = gmc_v6_0_late_init,
1120         .sw_init = gmc_v6_0_sw_init,
1121         .sw_fini = gmc_v6_0_sw_fini,
1122         .hw_init = gmc_v6_0_hw_init,
1123         .hw_fini = gmc_v6_0_hw_fini,
1124         .suspend = gmc_v6_0_suspend,
1125         .resume = gmc_v6_0_resume,
1126         .is_idle = gmc_v6_0_is_idle,
1127         .wait_for_idle = gmc_v6_0_wait_for_idle,
1128         .soft_reset = gmc_v6_0_soft_reset,
1129         .set_clockgating_state = gmc_v6_0_set_clockgating_state,
1130         .set_powergating_state = gmc_v6_0_set_powergating_state,
1131 };
1132
1133 static const struct amdgpu_gmc_funcs gmc_v6_0_gmc_funcs = {
1134         .flush_gpu_tlb = gmc_v6_0_flush_gpu_tlb,
1135         .emit_flush_gpu_tlb = gmc_v6_0_emit_flush_gpu_tlb,
1136         .set_prt = gmc_v6_0_set_prt,
1137         .get_vm_pde = gmc_v6_0_get_vm_pde,
1138         .get_vm_pte = gmc_v6_0_get_vm_pte,
1139 };
1140
1141 static const struct amdgpu_irq_src_funcs gmc_v6_0_irq_funcs = {
1142         .set = gmc_v6_0_vm_fault_interrupt_state,
1143         .process = gmc_v6_0_process_interrupt,
1144 };
1145
1146 static void gmc_v6_0_set_gmc_funcs(struct amdgpu_device *adev)
1147 {
1148         adev->gmc.gmc_funcs = &gmc_v6_0_gmc_funcs;
1149 }
1150
1151 static void gmc_v6_0_set_irq_funcs(struct amdgpu_device *adev)
1152 {
1153         adev->gmc.vm_fault.num_types = 1;
1154         adev->gmc.vm_fault.funcs = &gmc_v6_0_irq_funcs;
1155 }
1156
1157 const struct amdgpu_ip_block_version gmc_v6_0_ip_block =
1158 {
1159         .type = AMD_IP_BLOCK_TYPE_GMC,
1160         .major = 6,
1161         .minor = 0,
1162         .rev = 0,
1163         .funcs = &gmc_v6_0_ip_funcs,
1164 };