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         adev->gmc.gart_size += adev->pm.smu_prv_buffer_size;
 350         gmc_v6_0_vram_gtt_location(adev, &adev->gmc);
 351
 352         return 0;
 353 }
 354
 355 static void gmc_v6_0_flush_gpu_tlb(struct amdgpu_device *adev, uint32_t vmid,
 356                                         uint32_t vmhub, uint32_t flush_type)
 357 {
 358         WREG32(mmVM_INVALIDATE_REQUEST, 1 << vmid);
 359 }
 360
 361 static uint64_t gmc_v6_0_emit_flush_gpu_tlb(struct amdgpu_ring *ring,
 362                                             unsigned vmid, uint64_t pd_addr)
 363 {
 364         uint32_t reg;
 365
 366         /* write new base address */
 367         if (vmid < 8)
 368                 reg = mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR + vmid;
 369         else
 370                 reg = mmVM_CONTEXT8_PAGE_TABLE_BASE_ADDR + (vmid - 8);
 371         amdgpu_ring_emit_wreg(ring, reg, pd_addr >> 12);
 372
 373         /* bits 0-15 are the VM contexts0-15 */
 374         amdgpu_ring_emit_wreg(ring, mmVM_INVALIDATE_REQUEST, 1 << vmid);
 375
 376         return pd_addr;
 377 }
 378
 379 static void gmc_v6_0_get_vm_pde(struct amdgpu_device *adev, int level,
 380                                 uint64_t *addr, uint64_t *flags)
 381 {
 382         BUG_ON(*addr & 0xFFFFFF0000000FFFULL);
 383 }
 384
 385 static void gmc_v6_0_get_vm_pte(struct amdgpu_device *adev,
 386                                 struct amdgpu_bo_va_mapping *mapping,
 387                                 uint64_t *flags)
 388 {
 389         *flags &= ~AMDGPU_PTE_EXECUTABLE;
 390         *flags &= ~AMDGPU_PTE_PRT;
 391 }
 392
 393 static void gmc_v6_0_set_fault_enable_default(struct amdgpu_device *adev,
 394                                               bool value)
 395 {
 396         u32 tmp;
 397
 398         tmp = RREG32(mmVM_CONTEXT1_CNTL);
 399         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 400                             RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 401         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 402                             DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 403         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 404                             PDE0_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 405         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 406                             VALID_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 407         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 408                             READ_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 409         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 410                             WRITE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 411         WREG32(mmVM_CONTEXT1_CNTL, tmp);
 412 }
 413
 414  /**
 415    + * gmc_v8_0_set_prt - set PRT VM fault
 416    + *
 417    + * @adev: amdgpu_device pointer
 418    + * @enable: enable/disable VM fault handling for PRT
 419    +*/
 420 static void gmc_v6_0_set_prt(struct amdgpu_device *adev, bool enable)
 421 {
 422         u32 tmp;
 423
 424         if (enable && !adev->gmc.prt_warning) {
 425                 dev_warn(adev->dev, "Disabling VM faults because of PRT request!\n");
 426                 adev->gmc.prt_warning = true;
 427         }
 428
 429         tmp = RREG32(mmVM_PRT_CNTL);
 430         tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
 431                             CB_DISABLE_FAULT_ON_UNMAPPED_ACCESS,
 432                             enable);
 433         tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
 434                             TC_DISABLE_FAULT_ON_UNMAPPED_ACCESS,
 435                             enable);
 436         tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
 437                             L2_CACHE_STORE_INVALID_ENTRIES,
 438                             enable);
 439         tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
 440                             L1_TLB_STORE_INVALID_ENTRIES,
 441                             enable);
 442         WREG32(mmVM_PRT_CNTL, tmp);
 443
 444         if (enable) {
 445                 uint32_t low = AMDGPU_VA_RESERVED_SIZE >> AMDGPU_GPU_PAGE_SHIFT;
 446                 uint32_t high = adev->vm_manager.max_pfn -
 447                         (AMDGPU_VA_RESERVED_SIZE >> AMDGPU_GPU_PAGE_SHIFT);
 448
 449                 WREG32(mmVM_PRT_APERTURE0_LOW_ADDR, low);
 450                 WREG32(mmVM_PRT_APERTURE1_LOW_ADDR, low);
 451                 WREG32(mmVM_PRT_APERTURE2_LOW_ADDR, low);
 452                 WREG32(mmVM_PRT_APERTURE3_LOW_ADDR, low);
 453                 WREG32(mmVM_PRT_APERTURE0_HIGH_ADDR, high);
 454                 WREG32(mmVM_PRT_APERTURE1_HIGH_ADDR, high);
 455                 WREG32(mmVM_PRT_APERTURE2_HIGH_ADDR, high);
 456                 WREG32(mmVM_PRT_APERTURE3_HIGH_ADDR, high);
 457         } else {
 458                 WREG32(mmVM_PRT_APERTURE0_LOW_ADDR, 0xfffffff);
 459                 WREG32(mmVM_PRT_APERTURE1_LOW_ADDR, 0xfffffff);
 460                 WREG32(mmVM_PRT_APERTURE2_LOW_ADDR, 0xfffffff);
 461                 WREG32(mmVM_PRT_APERTURE3_LOW_ADDR, 0xfffffff);
 462                 WREG32(mmVM_PRT_APERTURE0_HIGH_ADDR, 0x0);
 463                 WREG32(mmVM_PRT_APERTURE1_HIGH_ADDR, 0x0);
 464                 WREG32(mmVM_PRT_APERTURE2_HIGH_ADDR, 0x0);
 465                 WREG32(mmVM_PRT_APERTURE3_HIGH_ADDR, 0x0);
 466         }
 467 }
 468
 469 static int gmc_v6_0_gart_enable(struct amdgpu_device *adev)
 470 {
 471         uint64_t table_addr;
 472         int r, i;
 473         u32 field;
 474
 475         if (adev->gart.bo == NULL) {
 476                 dev_err(adev->dev, "No VRAM object for PCIE GART.\n");
 477                 return -EINVAL;
 478         }
 479         r = amdgpu_gtt_mgr_recover(&adev->mman.gtt_mgr);
 480         if (r)
 481                 return r;
 482
 483         table_addr = amdgpu_bo_gpu_offset(adev->gart.bo);
 484
 485         /* Setup TLB control */
 486         WREG32(mmMC_VM_MX_L1_TLB_CNTL,
 487                (0xA << 7) |
 488                MC_VM_MX_L1_TLB_CNTL__ENABLE_L1_TLB_MASK |
 489                MC_VM_MX_L1_TLB_CNTL__ENABLE_L1_FRAGMENT_PROCESSING_MASK |
 490                MC_VM_MX_L1_TLB_CNTL__SYSTEM_ACCESS_MODE_MASK |
 491                MC_VM_MX_L1_TLB_CNTL__ENABLE_ADVANCED_DRIVER_MODEL_MASK |
 492                (0UL << MC_VM_MX_L1_TLB_CNTL__SYSTEM_APERTURE_UNMAPPED_ACCESS__SHIFT));
 493         /* Setup L2 cache */
 494         WREG32(mmVM_L2_CNTL,
 495                VM_L2_CNTL__ENABLE_L2_CACHE_MASK |
 496                VM_L2_CNTL__ENABLE_L2_FRAGMENT_PROCESSING_MASK |
 497                VM_L2_CNTL__ENABLE_L2_PTE_CACHE_LRU_UPDATE_BY_WRITE_MASK |
 498                VM_L2_CNTL__ENABLE_L2_PDE0_CACHE_LRU_UPDATE_BY_WRITE_MASK |
 499                (7UL << VM_L2_CNTL__EFFECTIVE_L2_QUEUE_SIZE__SHIFT) |
 500                (1UL << VM_L2_CNTL__CONTEXT1_IDENTITY_ACCESS_MODE__SHIFT));
 501         WREG32(mmVM_L2_CNTL2,
 502                VM_L2_CNTL2__INVALIDATE_ALL_L1_TLBS_MASK |
 503                VM_L2_CNTL2__INVALIDATE_L2_CACHE_MASK);
 504
 505         field = adev->vm_manager.fragment_size;
 506         WREG32(mmVM_L2_CNTL3,
 507                VM_L2_CNTL3__L2_CACHE_BIGK_ASSOCIATIVITY_MASK |
 508                (field << VM_L2_CNTL3__BANK_SELECT__SHIFT) |
 509                (field << VM_L2_CNTL3__L2_CACHE_BIGK_FRAGMENT_SIZE__SHIFT));
 510         /* setup context0 */
 511         WREG32(mmVM_CONTEXT0_PAGE_TABLE_START_ADDR, adev->gmc.gart_start >> 12);
 512         WREG32(mmVM_CONTEXT0_PAGE_TABLE_END_ADDR, adev->gmc.gart_end >> 12);
 513         WREG32(mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR, table_addr >> 12);
 514         WREG32(mmVM_CONTEXT0_PROTECTION_FAULT_DEFAULT_ADDR,
 515                         (u32)(adev->dummy_page_addr >> 12));
 516         WREG32(mmVM_CONTEXT0_CNTL2, 0);
 517         WREG32(mmVM_CONTEXT0_CNTL,
 518                VM_CONTEXT0_CNTL__ENABLE_CONTEXT_MASK |
 519                (0UL << VM_CONTEXT0_CNTL__PAGE_TABLE_DEPTH__SHIFT) |
 520                VM_CONTEXT0_CNTL__RANGE_PROTECTION_FAULT_ENABLE_DEFAULT_MASK);
 521
 522         WREG32(0x575, 0);
 523         WREG32(0x576, 0);
 524         WREG32(0x577, 0);
 525
 526         /* empty context1-15 */
 527         /* set vm size, must be a multiple of 4 */
 528         WREG32(mmVM_CONTEXT1_PAGE_TABLE_START_ADDR, 0);
 529         WREG32(mmVM_CONTEXT1_PAGE_TABLE_END_ADDR, adev->vm_manager.max_pfn - 1);
 530         /* Assign the pt base to something valid for now; the pts used for
 531          * the VMs are determined by the application and setup and assigned
 532          * on the fly in the vm part of radeon_gart.c
 533          */
 534         for (i = 1; i < AMDGPU_NUM_VMID; i++) {
 535                 if (i < 8)
 536                         WREG32(mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR + i,
 537                                table_addr >> 12);
 538                 else
 539                         WREG32(mmVM_CONTEXT8_PAGE_TABLE_BASE_ADDR + i - 8,
 540                                table_addr >> 12);
 541         }
 542
 543         /* enable context1-15 */
 544         WREG32(mmVM_CONTEXT1_PROTECTION_FAULT_DEFAULT_ADDR,
 545                (u32)(adev->dummy_page_addr >> 12));
 546         WREG32(mmVM_CONTEXT1_CNTL2, 4);
 547         WREG32(mmVM_CONTEXT1_CNTL,
 548                VM_CONTEXT1_CNTL__ENABLE_CONTEXT_MASK |
 549                (1UL << VM_CONTEXT1_CNTL__PAGE_TABLE_DEPTH__SHIFT) |
 550                ((adev->vm_manager.block_size - 9)
 551                << VM_CONTEXT1_CNTL__PAGE_TABLE_BLOCK_SIZE__SHIFT));
 552         if (amdgpu_vm_fault_stop == AMDGPU_VM_FAULT_STOP_ALWAYS)
 553                 gmc_v6_0_set_fault_enable_default(adev, false);
 554         else
 555                 gmc_v6_0_set_fault_enable_default(adev, true);
 556
 557         gmc_v6_0_flush_gpu_tlb(adev, 0, 0, 0);
 558         dev_info(adev->dev, "PCIE GART of %uM enabled (table at 0x%016llX).\n",
 559                  (unsigned)(adev->gmc.gart_size >> 20),
 560                  (unsigned long long)table_addr);
 561         adev->gart.ready = true;
 562         return 0;
 563 }
 564
 565 static int gmc_v6_0_gart_init(struct amdgpu_device *adev)
 566 {
 567         int r;
 568
 569         if (adev->gart.bo) {
 570                 dev_warn(adev->dev, "gmc_v6_0 PCIE GART already initialized\n");
 571                 return 0;
 572         }
 573         r = amdgpu_gart_init(adev);
 574         if (r)
 575                 return r;
 576         adev->gart.table_size = adev->gart.num_gpu_pages * 8;
 577         adev->gart.gart_pte_flags = 0;
 578         return amdgpu_gart_table_vram_alloc(adev);
 579 }
 580
 581 static void gmc_v6_0_gart_disable(struct amdgpu_device *adev)
 582 {
 583         /*unsigned i;
 584
 585         for (i = 1; i < 16; ++i) {
 586                 uint32_t reg;
 587                 if (i < 8)
 588                         reg = VM_CONTEXT0_PAGE_TABLE_BASE_ADDR + i ;
 589                 else
 590                         reg = VM_CONTEXT8_PAGE_TABLE_BASE_ADDR + (i - 8);
 591                 adev->vm_manager.saved_table_addr[i] = RREG32(reg);
 592         }*/
 593
 594         /* Disable all tables */
 595         WREG32(mmVM_CONTEXT0_CNTL, 0);
 596         WREG32(mmVM_CONTEXT1_CNTL, 0);
 597         /* Setup TLB control */
 598         WREG32(mmMC_VM_MX_L1_TLB_CNTL,
 599                MC_VM_MX_L1_TLB_CNTL__SYSTEM_ACCESS_MODE_MASK |
 600                (0UL << MC_VM_MX_L1_TLB_CNTL__SYSTEM_APERTURE_UNMAPPED_ACCESS__SHIFT));
 601         /* Setup L2 cache */
 602         WREG32(mmVM_L2_CNTL,
 603                VM_L2_CNTL__ENABLE_L2_PTE_CACHE_LRU_UPDATE_BY_WRITE_MASK |
 604                VM_L2_CNTL__ENABLE_L2_PDE0_CACHE_LRU_UPDATE_BY_WRITE_MASK |
 605                (7UL << VM_L2_CNTL__EFFECTIVE_L2_QUEUE_SIZE__SHIFT) |
 606                (1UL << VM_L2_CNTL__CONTEXT1_IDENTITY_ACCESS_MODE__SHIFT));
 607         WREG32(mmVM_L2_CNTL2, 0);
 608         WREG32(mmVM_L2_CNTL3,
 609                VM_L2_CNTL3__L2_CACHE_BIGK_ASSOCIATIVITY_MASK |
 610                (0UL << VM_L2_CNTL3__L2_CACHE_BIGK_FRAGMENT_SIZE__SHIFT));
 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         if (amdgpu_vm_fault_stop != AMDGPU_VM_FAULT_STOP_ALWAYS)
 795                 return amdgpu_irq_get(adev, &adev->gmc.vm_fault, 0);
 796         else
 797                 return 0;
 798 }
 799
 800 static unsigned gmc_v6_0_get_vbios_fb_size(struct amdgpu_device *adev)
 801 {
 802         u32 d1vga_control = RREG32(mmD1VGA_CONTROL);
 803         unsigned size;
 804
 805         if (REG_GET_FIELD(d1vga_control, D1VGA_CONTROL, D1VGA_MODE_ENABLE)) {
 806                 size = AMDGPU_VBIOS_VGA_ALLOCATION;
 807         } else {
 808                 u32 viewport = RREG32(mmVIEWPORT_SIZE);
 809                 size = (REG_GET_FIELD(viewport, VIEWPORT_SIZE, VIEWPORT_HEIGHT) *
 810                         REG_GET_FIELD(viewport, VIEWPORT_SIZE, VIEWPORT_WIDTH) *
 811                         4);
 812         }
 813         return size;
 814 }
 815
 816 static int gmc_v6_0_sw_init(void *handle)
 817 {
 818         int r;
 819         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 820
 821         adev->num_vmhubs = 1;
 822
 823         if (adev->flags & AMD_IS_APU) {
 824                 adev->gmc.vram_type = AMDGPU_VRAM_TYPE_UNKNOWN;
 825         } else {
 826                 u32 tmp = RREG32(mmMC_SEQ_MISC0);
 827                 tmp &= MC_SEQ_MISC0__MT__MASK;
 828                 adev->gmc.vram_type = gmc_v6_0_convert_vram_type(tmp);
 829         }
 830
 831         r = amdgpu_irq_add_id(adev, AMDGPU_IRQ_CLIENTID_LEGACY, 146, &adev->gmc.vm_fault);
 832         if (r)
 833                 return r;
 834
 835         r = amdgpu_irq_add_id(adev, AMDGPU_IRQ_CLIENTID_LEGACY, 147, &adev->gmc.vm_fault);
 836         if (r)
 837                 return r;
 838
 839         amdgpu_vm_adjust_size(adev, 64, 9, 1, 40);
 840
 841         adev->gmc.mc_mask = 0xffffffffffULL;
 842
 843         r = dma_set_mask_and_coherent(adev->dev, DMA_BIT_MASK(40));
 844         if (r) {
 845                 dev_warn(adev->dev, "No suitable DMA available.\n");
 846                 return r;
 847         }
 848         adev->need_swiotlb = drm_need_swiotlb(40);
 849
 850         r = gmc_v6_0_init_microcode(adev);
 851         if (r) {
 852                 dev_err(adev->dev, "Failed to load mc firmware!\n");
 853                 return r;
 854         }
 855
 856         r = gmc_v6_0_mc_init(adev);
 857         if (r)
 858                 return r;
 859
 860         amdgpu_gmc_get_vbios_allocations(adev);
 861
 862         r = amdgpu_bo_init(adev);
 863         if (r)
 864                 return r;
 865
 866         r = gmc_v6_0_gart_init(adev);
 867         if (r)
 868                 return r;
 869
 870         /*
 871          * number of VMs
 872          * VMID 0 is reserved for System
 873          * amdgpu graphics/compute will use VMIDs 1-7
 874          * amdkfd will use VMIDs 8-15
 875          */
 876         adev->vm_manager.first_kfd_vmid = 8;
 877         amdgpu_vm_manager_init(adev);
 878
 879         /* base offset of vram pages */
 880         if (adev->flags & AMD_IS_APU) {
 881                 u64 tmp = RREG32(mmMC_VM_FB_OFFSET);
 882
 883                 tmp <<= 22;
 884                 adev->vm_manager.vram_base_offset = tmp;
 885         } else {
 886                 adev->vm_manager.vram_base_offset = 0;
 887         }
 888
 889         return 0;
 890 }
 891
 892 static int gmc_v6_0_sw_fini(void *handle)
 893 {
 894         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 895
 896         amdgpu_gem_force_release(adev);
 897         amdgpu_vm_manager_fini(adev);
 898         amdgpu_gart_table_vram_free(adev);
 899         amdgpu_bo_fini(adev);
 900         release_firmware(adev->gmc.fw);
 901         adev->gmc.fw = NULL;
 902
 903         return 0;
 904 }
 905
 906 static int gmc_v6_0_hw_init(void *handle)
 907 {
 908         int r;
 909         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 910
 911         gmc_v6_0_mc_program(adev);
 912
 913         if (!(adev->flags & AMD_IS_APU)) {
 914                 r = gmc_v6_0_mc_load_microcode(adev);
 915                 if (r) {
 916                         dev_err(adev->dev, "Failed to load MC firmware!\n");
 917                         return r;
 918                 }
 919         }
 920
 921         r = gmc_v6_0_gart_enable(adev);
 922         if (r)
 923                 return r;
 924
 925         return r;
 926 }
 927
 928 static int gmc_v6_0_hw_fini(void *handle)
 929 {
 930         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 931
 932         amdgpu_irq_put(adev, &adev->gmc.vm_fault, 0);
 933         gmc_v6_0_gart_disable(adev);
 934
 935         return 0;
 936 }
 937
 938 static int gmc_v6_0_suspend(void *handle)
 939 {
 940         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 941
 942         gmc_v6_0_hw_fini(adev);
 943
 944         return 0;
 945 }
 946
 947 static int gmc_v6_0_resume(void *handle)
 948 {
 949         int r;
 950         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 951
 952         r = gmc_v6_0_hw_init(adev);
 953         if (r)
 954                 return r;
 955
 956         amdgpu_vmid_reset_all(adev);
 957
 958         return 0;
 959 }
 960
 961 static bool gmc_v6_0_is_idle(void *handle)
 962 {
 963         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 964         u32 tmp = RREG32(mmSRBM_STATUS);
 965
 966         if (tmp & (SRBM_STATUS__MCB_BUSY_MASK | SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK |
 967                    SRBM_STATUS__MCC_BUSY_MASK | SRBM_STATUS__MCD_BUSY_MASK | SRBM_STATUS__VMC_BUSY_MASK))
 968                 return false;
 969
 970         return true;
 971 }
 972
 973 static int gmc_v6_0_wait_for_idle(void *handle)
 974 {
 975         unsigned i;
 976         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 977
 978         for (i = 0; i < adev->usec_timeout; i++) {
 979                 if (gmc_v6_0_is_idle(handle))
 980                         return 0;
 981                 udelay(1);
 982         }
 983         return -ETIMEDOUT;
 984
 985 }
 986
 987 static int gmc_v6_0_soft_reset(void *handle)
 988 {
 989         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 990         u32 srbm_soft_reset = 0;
 991         u32 tmp = RREG32(mmSRBM_STATUS);
 992
 993         if (tmp & SRBM_STATUS__VMC_BUSY_MASK)
 994                 srbm_soft_reset = REG_SET_FIELD(srbm_soft_reset,
 995                                                 SRBM_SOFT_RESET, SOFT_RESET_VMC, 1);
 996
 997         if (tmp & (SRBM_STATUS__MCB_BUSY_MASK | SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK |
 998                    SRBM_STATUS__MCC_BUSY_MASK | SRBM_STATUS__MCD_BUSY_MASK)) {
 999                 if (!(adev->flags & AMD_IS_APU))
1000                         srbm_soft_reset = REG_SET_FIELD(srbm_soft_reset,
1001                                                         SRBM_SOFT_RESET, SOFT_RESET_MC, 1);
1002         }
1003
1004         if (srbm_soft_reset) {
1005                 gmc_v6_0_mc_stop(adev);
1006                 if (gmc_v6_0_wait_for_idle(adev)) {
1007                         dev_warn(adev->dev, "Wait for GMC idle timed out !\n");
1008                 }
1009
1010
1011                 tmp = RREG32(mmSRBM_SOFT_RESET);
1012                 tmp |= srbm_soft_reset;
1013                 dev_info(adev->dev, "SRBM_SOFT_RESET=0x%08X\n", tmp);
1014                 WREG32(mmSRBM_SOFT_RESET, tmp);
1015                 tmp = RREG32(mmSRBM_SOFT_RESET);
1016
1017                 udelay(50);
1018
1019                 tmp &= ~srbm_soft_reset;
1020                 WREG32(mmSRBM_SOFT_RESET, tmp);
1021                 tmp = RREG32(mmSRBM_SOFT_RESET);
1022
1023                 udelay(50);
1024
1025                 gmc_v6_0_mc_resume(adev);
1026                 udelay(50);
1027         }
1028
1029         return 0;
1030 }
1031
1032 static int gmc_v6_0_vm_fault_interrupt_state(struct amdgpu_device *adev,
1033                                              struct amdgpu_irq_src *src,
1034                                              unsigned type,
1035                                              enum amdgpu_interrupt_state state)
1036 {
1037         u32 tmp;
1038         u32 bits = (VM_CONTEXT1_CNTL__RANGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1039                     VM_CONTEXT1_CNTL__DUMMY_PAGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1040                     VM_CONTEXT1_CNTL__PDE0_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1041                     VM_CONTEXT1_CNTL__VALID_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1042                     VM_CONTEXT1_CNTL__READ_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1043                     VM_CONTEXT1_CNTL__WRITE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK);
1044
1045         switch (state) {
1046         case AMDGPU_IRQ_STATE_DISABLE:
1047                 tmp = RREG32(mmVM_CONTEXT0_CNTL);
1048                 tmp &= ~bits;
1049                 WREG32(mmVM_CONTEXT0_CNTL, tmp);
1050                 tmp = RREG32(mmVM_CONTEXT1_CNTL);
1051                 tmp &= ~bits;
1052                 WREG32(mmVM_CONTEXT1_CNTL, tmp);
1053                 break;
1054         case AMDGPU_IRQ_STATE_ENABLE:
1055                 tmp = RREG32(mmVM_CONTEXT0_CNTL);
1056                 tmp |= bits;
1057                 WREG32(mmVM_CONTEXT0_CNTL, tmp);
1058                 tmp = RREG32(mmVM_CONTEXT1_CNTL);
1059                 tmp |= bits;
1060                 WREG32(mmVM_CONTEXT1_CNTL, tmp);
1061                 break;
1062         default:
1063                 break;
1064         }
1065
1066         return 0;
1067 }
1068
1069 static int gmc_v6_0_process_interrupt(struct amdgpu_device *adev,
1070                                       struct amdgpu_irq_src *source,
1071                                       struct amdgpu_iv_entry *entry)
1072 {
1073         u32 addr, status;
1074
1075         addr = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_ADDR);
1076         status = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_STATUS);
1077         WREG32_P(mmVM_CONTEXT1_CNTL2, 1, ~1);
1078
1079         if (!addr && !status)
1080                 return 0;
1081
1082         if (amdgpu_vm_fault_stop == AMDGPU_VM_FAULT_STOP_FIRST)
1083                 gmc_v6_0_set_fault_enable_default(adev, false);
1084
1085         if (printk_ratelimit()) {
1086                 dev_err(adev->dev, "GPU fault detected: %d 0x%08x\n",
1087                         entry->src_id, entry->src_data[0]);
1088                 dev_err(adev->dev, "  VM_CONTEXT1_PROTECTION_FAULT_ADDR   0x%08X\n",
1089                         addr);
1090                 dev_err(adev->dev, "  VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x%08X\n",
1091                         status);
1092                 gmc_v6_0_vm_decode_fault(adev, status, addr, 0);
1093         }
1094
1095         return 0;
1096 }
1097
1098 static int gmc_v6_0_set_clockgating_state(void *handle,
1099                                           enum amd_clockgating_state state)
1100 {
1101         return 0;
1102 }
1103
1104 static int gmc_v6_0_set_powergating_state(void *handle,
1105                                           enum amd_powergating_state state)
1106 {
1107         return 0;
1108 }
1109
1110 static const struct amd_ip_funcs gmc_v6_0_ip_funcs = {
1111         .name = "gmc_v6_0",
1112         .early_init = gmc_v6_0_early_init,
1113         .late_init = gmc_v6_0_late_init,
1114         .sw_init = gmc_v6_0_sw_init,
1115         .sw_fini = gmc_v6_0_sw_fini,
1116         .hw_init = gmc_v6_0_hw_init,
1117         .hw_fini = gmc_v6_0_hw_fini,
1118         .suspend = gmc_v6_0_suspend,
1119         .resume = gmc_v6_0_resume,
1120         .is_idle = gmc_v6_0_is_idle,
1121         .wait_for_idle = gmc_v6_0_wait_for_idle,
1122         .soft_reset = gmc_v6_0_soft_reset,
1123         .set_clockgating_state = gmc_v6_0_set_clockgating_state,
1124         .set_powergating_state = gmc_v6_0_set_powergating_state,
1125 };
1126
1127 static const struct amdgpu_gmc_funcs gmc_v6_0_gmc_funcs = {
1128         .flush_gpu_tlb = gmc_v6_0_flush_gpu_tlb,
1129         .emit_flush_gpu_tlb = gmc_v6_0_emit_flush_gpu_tlb,
1130         .set_prt = gmc_v6_0_set_prt,
1131         .get_vm_pde = gmc_v6_0_get_vm_pde,
1132         .get_vm_pte = gmc_v6_0_get_vm_pte,
1133         .get_vbios_fb_size = gmc_v6_0_get_vbios_fb_size,
1134 };
1135
1136 static const struct amdgpu_irq_src_funcs gmc_v6_0_irq_funcs = {
1137         .set = gmc_v6_0_vm_fault_interrupt_state,
1138         .process = gmc_v6_0_process_interrupt,
1139 };
1140
1141 static void gmc_v6_0_set_gmc_funcs(struct amdgpu_device *adev)
1142 {
1143         adev->gmc.gmc_funcs = &gmc_v6_0_gmc_funcs;
1144 }
1145
1146 static void gmc_v6_0_set_irq_funcs(struct amdgpu_device *adev)
1147 {
1148         adev->gmc.vm_fault.num_types = 1;
1149         adev->gmc.vm_fault.funcs = &gmc_v6_0_irq_funcs;
1150 }
1151
1152 const struct amdgpu_ip_block_version gmc_v6_0_ip_block =
1153 {
1154         .type = AMD_IP_BLOCK_TYPE_GMC,
1155         .major = 6,
1156         .minor = 0,
1157         .rev = 0,
1158         .funcs = &gmc_v6_0_ip_funcs,
1159 };