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 #include <linux/firmware.h>
  24 #include <drm/drmP.h>
  25 #include "amdgpu.h"
  26 #include "gmc_v6_0.h"
  27 #include "amdgpu_ucode.h"
  28
  29 #include "bif/bif_3_0_d.h"
  30 #include "bif/bif_3_0_sh_mask.h"
  31 #include "oss/oss_1_0_d.h"
  32 #include "oss/oss_1_0_sh_mask.h"
  33 #include "gmc/gmc_6_0_d.h"
  34 #include "gmc/gmc_6_0_sh_mask.h"
  35 #include "dce/dce_6_0_d.h"
  36 #include "dce/dce_6_0_sh_mask.h"
  37 #include "si_enums.h"
  38
  39 static void gmc_v6_0_set_gart_funcs(struct amdgpu_device *adev);
  40 static void gmc_v6_0_set_irq_funcs(struct amdgpu_device *adev);
  41 static int gmc_v6_0_wait_for_idle(void *handle);
  42
  43 MODULE_FIRMWARE("radeon/tahiti_mc.bin");
  44 MODULE_FIRMWARE("radeon/pitcairn_mc.bin");
  45 MODULE_FIRMWARE("radeon/verde_mc.bin");
  46 MODULE_FIRMWARE("radeon/oland_mc.bin");
  47 MODULE_FIRMWARE("radeon/si58_mc.bin");
  48
  49 #define MC_SEQ_MISC0__MT__MASK   0xf0000000
  50 #define MC_SEQ_MISC0__MT__GDDR1  0x10000000
  51 #define MC_SEQ_MISC0__MT__DDR2   0x20000000
  52 #define MC_SEQ_MISC0__MT__GDDR3  0x30000000
  53 #define MC_SEQ_MISC0__MT__GDDR4  0x40000000
  54 #define MC_SEQ_MISC0__MT__GDDR5  0x50000000
  55 #define MC_SEQ_MISC0__MT__HBM    0x60000000
  56 #define MC_SEQ_MISC0__MT__DDR3   0xB0000000
  57
  58
  59 static const u32 crtc_offsets[6] =
  60 {
  61         SI_CRTC0_REGISTER_OFFSET,
  62         SI_CRTC1_REGISTER_OFFSET,
  63         SI_CRTC2_REGISTER_OFFSET,
  64         SI_CRTC3_REGISTER_OFFSET,
  65         SI_CRTC4_REGISTER_OFFSET,
  66         SI_CRTC5_REGISTER_OFFSET
  67 };
  68
  69 static void gmc_v6_0_mc_stop(struct amdgpu_device *adev)
  70 {
  71         u32 blackout;
  72
  73         gmc_v6_0_wait_for_idle((void *)adev);
  74
  75         blackout = RREG32(mmMC_SHARED_BLACKOUT_CNTL);
  76         if (REG_GET_FIELD(blackout, MC_SHARED_BLACKOUT_CNTL, BLACKOUT_MODE) != 1) {
  77                 /* Block CPU access */
  78                 WREG32(mmBIF_FB_EN, 0);
  79                 /* blackout the MC */
  80                 blackout = REG_SET_FIELD(blackout,
  81                                          MC_SHARED_BLACKOUT_CNTL, BLACKOUT_MODE, 0);
  82                 WREG32(mmMC_SHARED_BLACKOUT_CNTL, blackout | 1);
  83         }
  84         /* wait for the MC to settle */
  85         udelay(100);
  86
  87 }
  88
  89 static void gmc_v6_0_mc_resume(struct amdgpu_device *adev)
  90 {
  91         u32 tmp;
  92
  93         /* unblackout the MC */
  94         tmp = RREG32(mmMC_SHARED_BLACKOUT_CNTL);
  95         tmp = REG_SET_FIELD(tmp, MC_SHARED_BLACKOUT_CNTL, BLACKOUT_MODE, 0);
  96         WREG32(mmMC_SHARED_BLACKOUT_CNTL, tmp);
  97         /* allow CPU access */
  98         tmp = REG_SET_FIELD(0, BIF_FB_EN, FB_READ_EN, 1);
  99         tmp = REG_SET_FIELD(tmp, BIF_FB_EN, FB_WRITE_EN, 1);
 100         WREG32(mmBIF_FB_EN, tmp);
 101 }
 102
 103 static int gmc_v6_0_init_microcode(struct amdgpu_device *adev)
 104 {
 105         const char *chip_name;
 106         char fw_name[30];
 107         int err;
 108         bool is_58_fw = false;
 109
 110         DRM_DEBUG("\n");
 111
 112         switch (adev->asic_type) {
 113         case CHIP_TAHITI:
 114                 chip_name = "tahiti";
 115                 break;
 116         case CHIP_PITCAIRN:
 117                 chip_name = "pitcairn";
 118                 break;
 119         case CHIP_VERDE:
 120                 chip_name = "verde";
 121                 break;
 122         case CHIP_OLAND:
 123                 chip_name = "oland";
 124                 break;
 125         case CHIP_HAINAN:
 126                 chip_name = "hainan";
 127                 break;
 128         default: BUG();
 129         }
 130
 131         /* this memory configuration requires special firmware */
 132         if (((RREG32(mmMC_SEQ_MISC0) & 0xff000000) >> 24) == 0x58)
 133                 is_58_fw = true;
 134
 135         if (is_58_fw)
 136                 snprintf(fw_name, sizeof(fw_name), "radeon/si58_mc.bin");
 137         else
 138                 snprintf(fw_name, sizeof(fw_name), "radeon/%s_mc.bin", chip_name);
 139         err = request_firmware(&adev->mc.fw, fw_name, adev->dev);
 140         if (err)
 141                 goto out;
 142
 143         err = amdgpu_ucode_validate(adev->mc.fw);
 144
 145 out:
 146         if (err) {
 147                 dev_err(adev->dev,
 148                        "si_mc: Failed to load firmware \"%s\"\n",
 149                        fw_name);
 150                 release_firmware(adev->mc.fw);
 151                 adev->mc.fw = NULL;
 152         }
 153         return err;
 154 }
 155
 156 static int gmc_v6_0_mc_load_microcode(struct amdgpu_device *adev)
 157 {
 158         const __le32 *new_fw_data = NULL;
 159         u32 running;
 160         const __le32 *new_io_mc_regs = NULL;
 161         int i, regs_size, ucode_size;
 162         const struct mc_firmware_header_v1_0 *hdr;
 163
 164         if (!adev->mc.fw)
 165                 return -EINVAL;
 166
 167         hdr = (const struct mc_firmware_header_v1_0 *)adev->mc.fw->data;
 168
 169         amdgpu_ucode_print_mc_hdr(&hdr->header);
 170
 171         adev->mc.fw_version = le32_to_cpu(hdr->header.ucode_version);
 172         regs_size = le32_to_cpu(hdr->io_debug_size_bytes) / (4 * 2);
 173         new_io_mc_regs = (const __le32 *)
 174                 (adev->mc.fw->data + le32_to_cpu(hdr->io_debug_array_offset_bytes));
 175         ucode_size = le32_to_cpu(hdr->header.ucode_size_bytes) / 4;
 176         new_fw_data = (const __le32 *)
 177                 (adev->mc.fw->data + le32_to_cpu(hdr->header.ucode_array_offset_bytes));
 178
 179         running = RREG32(mmMC_SEQ_SUP_CNTL) & MC_SEQ_SUP_CNTL__RUN_MASK;
 180
 181         if (running == 0) {
 182
 183                 /* reset the engine and set to writable */
 184                 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000008);
 185                 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000010);
 186
 187                 /* load mc io regs */
 188                 for (i = 0; i < regs_size; i++) {
 189                         WREG32(mmMC_SEQ_IO_DEBUG_INDEX, le32_to_cpup(new_io_mc_regs++));
 190                         WREG32(mmMC_SEQ_IO_DEBUG_DATA, le32_to_cpup(new_io_mc_regs++));
 191                 }
 192                 /* load the MC ucode */
 193                 for (i = 0; i < ucode_size; i++) {
 194                         WREG32(mmMC_SEQ_SUP_PGM, le32_to_cpup(new_fw_data++));
 195                 }
 196
 197                 /* put the engine back into the active state */
 198                 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000008);
 199                 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000004);
 200                 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000001);
 201
 202                 /* wait for training to complete */
 203                 for (i = 0; i < adev->usec_timeout; i++) {
 204                         if (RREG32(mmMC_SEQ_TRAIN_WAKEUP_CNTL) & MC_SEQ_TRAIN_WAKEUP_CNTL__TRAIN_DONE_D0_MASK)
 205                                 break;
 206                         udelay(1);
 207                 }
 208                 for (i = 0; i < adev->usec_timeout; i++) {
 209                         if (RREG32(mmMC_SEQ_TRAIN_WAKEUP_CNTL) & MC_SEQ_TRAIN_WAKEUP_CNTL__TRAIN_DONE_D1_MASK)
 210                                 break;
 211                         udelay(1);
 212                 }
 213
 214         }
 215
 216         return 0;
 217 }
 218
 219 static void gmc_v6_0_vram_gtt_location(struct amdgpu_device *adev,
 220                                        struct amdgpu_mc *mc)
 221 {
 222         u64 base = RREG32(mmMC_VM_FB_LOCATION) & 0xFFFF;
 223         base <<= 24;
 224
 225         if (mc->mc_vram_size > 0xFFC0000000ULL) {
 226                 dev_warn(adev->dev, "limiting VRAM\n");
 227                 mc->real_vram_size = 0xFFC0000000ULL;
 228                 mc->mc_vram_size = 0xFFC0000000ULL;
 229         }
 230         amdgpu_vram_location(adev, &adev->mc, base);
 231         amdgpu_gart_location(adev, mc);
 232 }
 233
 234 static void gmc_v6_0_mc_program(struct amdgpu_device *adev)
 235 {
 236         int i, j;
 237
 238         /* Initialize HDP */
 239         for (i = 0, j = 0; i < 32; i++, j += 0x6) {
 240                 WREG32((0xb05 + j), 0x00000000);
 241                 WREG32((0xb06 + j), 0x00000000);
 242                 WREG32((0xb07 + j), 0x00000000);
 243                 WREG32((0xb08 + j), 0x00000000);
 244                 WREG32((0xb09 + j), 0x00000000);
 245         }
 246         WREG32(mmHDP_REG_COHERENCY_FLUSH_CNTL, 0);
 247
 248         if (gmc_v6_0_wait_for_idle((void *)adev)) {
 249                 dev_warn(adev->dev, "Wait for MC idle timedout !\n");
 250         }
 251
 252         if (adev->mode_info.num_crtc) {
 253                 u32 tmp;
 254
 255                 /* Lockout access through VGA aperture*/
 256                 tmp = RREG32(mmVGA_HDP_CONTROL);
 257                 tmp |= VGA_HDP_CONTROL__VGA_MEMORY_DISABLE_MASK;
 258                 WREG32(mmVGA_HDP_CONTROL, tmp);
 259
 260                 /* disable VGA render */
 261                 tmp = RREG32(mmVGA_RENDER_CONTROL);
 262                 tmp &= ~VGA_VSTATUS_CNTL;
 263                 WREG32(mmVGA_RENDER_CONTROL, tmp);
 264         }
 265         /* Update configuration */
 266         WREG32(mmMC_VM_SYSTEM_APERTURE_LOW_ADDR,
 267                adev->mc.vram_start >> 12);
 268         WREG32(mmMC_VM_SYSTEM_APERTURE_HIGH_ADDR,
 269                adev->mc.vram_end >> 12);
 270         WREG32(mmMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR,
 271                adev->vram_scratch.gpu_addr >> 12);
 272         WREG32(mmMC_VM_AGP_BASE, 0);
 273         WREG32(mmMC_VM_AGP_TOP, 0x0FFFFFFF);
 274         WREG32(mmMC_VM_AGP_BOT, 0x0FFFFFFF);
 275
 276         if (gmc_v6_0_wait_for_idle((void *)adev)) {
 277                 dev_warn(adev->dev, "Wait for MC idle timedout !\n");
 278         }
 279 }
 280
 281 static int gmc_v6_0_mc_init(struct amdgpu_device *adev)
 282 {
 283
 284         u32 tmp;
 285         int chansize, numchan;
 286
 287         tmp = RREG32(mmMC_ARB_RAMCFG);
 288         if (tmp & (1 << 11)) {
 289                 chansize = 16;
 290         } else if (tmp & MC_ARB_RAMCFG__CHANSIZE_MASK) {
 291                 chansize = 64;
 292         } else {
 293                 chansize = 32;
 294         }
 295         tmp = RREG32(mmMC_SHARED_CHMAP);
 296         switch ((tmp & MC_SHARED_CHMAP__NOOFCHAN_MASK) >> MC_SHARED_CHMAP__NOOFCHAN__SHIFT) {
 297         case 0:
 298         default:
 299                 numchan = 1;
 300                 break;
 301         case 1:
 302                 numchan = 2;
 303                 break;
 304         case 2:
 305                 numchan = 4;
 306                 break;
 307         case 3:
 308                 numchan = 8;
 309                 break;
 310         case 4:
 311                 numchan = 3;
 312                 break;
 313         case 5:
 314                 numchan = 6;
 315                 break;
 316         case 6:
 317                 numchan = 10;
 318                 break;
 319         case 7:
 320                 numchan = 12;
 321                 break;
 322         case 8:
 323                 numchan = 16;
 324                 break;
 325         }
 326         adev->mc.vram_width = numchan * chansize;
 327         /* Could aper size report 0 ? */
 328         adev->mc.aper_base = pci_resource_start(adev->pdev, 0);
 329         adev->mc.aper_size = pci_resource_len(adev->pdev, 0);
 330         /* size in MB on si */
 331         adev->mc.mc_vram_size = RREG32(mmCONFIG_MEMSIZE) * 1024ULL * 1024ULL;
 332         adev->mc.real_vram_size = RREG32(mmCONFIG_MEMSIZE) * 1024ULL * 1024ULL;
 333         adev->mc.visible_vram_size = adev->mc.aper_size;
 334
 335         amdgpu_gart_set_defaults(adev);
 336         gmc_v6_0_vram_gtt_location(adev, &adev->mc);
 337
 338         return 0;
 339 }
 340
 341 static void gmc_v6_0_gart_flush_gpu_tlb(struct amdgpu_device *adev,
 342                                         uint32_t vmid)
 343 {
 344         WREG32(mmHDP_MEM_COHERENCY_FLUSH_CNTL, 0);
 345
 346         WREG32(mmVM_INVALIDATE_REQUEST, 1 << vmid);
 347 }
 348
 349 static int gmc_v6_0_gart_set_pte_pde(struct amdgpu_device *adev,
 350                                      void *cpu_pt_addr,
 351                                      uint32_t gpu_page_idx,
 352                                      uint64_t addr,
 353                                      uint64_t flags)
 354 {
 355         void __iomem *ptr = (void *)cpu_pt_addr;
 356         uint64_t value;
 357
 358         value = addr & 0xFFFFFFFFFFFFF000ULL;
 359         value |= flags;
 360         writeq(value, ptr + (gpu_page_idx * 8));
 361
 362         return 0;
 363 }
 364
 365 static uint64_t gmc_v6_0_get_vm_pte_flags(struct amdgpu_device *adev,
 366                                           uint32_t flags)
 367 {
 368         uint64_t pte_flag = 0;
 369
 370         if (flags & AMDGPU_VM_PAGE_READABLE)
 371                 pte_flag |= AMDGPU_PTE_READABLE;
 372         if (flags & AMDGPU_VM_PAGE_WRITEABLE)
 373                 pte_flag |= AMDGPU_PTE_WRITEABLE;
 374         if (flags & AMDGPU_VM_PAGE_PRT)
 375                 pte_flag |= AMDGPU_PTE_PRT;
 376
 377         return pte_flag;
 378 }
 379
 380 static uint64_t gmc_v6_0_get_vm_pde(struct amdgpu_device *adev, uint64_t addr)
 381 {
 382         BUG_ON(addr & 0xFFFFFF0000000FFFULL);
 383         return addr;
 384 }
 385
 386 static void gmc_v6_0_set_fault_enable_default(struct amdgpu_device *adev,
 387                                               bool value)
 388 {
 389         u32 tmp;
 390
 391         tmp = RREG32(mmVM_CONTEXT1_CNTL);
 392         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 393                             RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 394         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 395                             DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 396         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 397                             PDE0_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 398         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 399                             VALID_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 400         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 401                             READ_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 402         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 403                             WRITE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 404         WREG32(mmVM_CONTEXT1_CNTL, tmp);
 405 }
 406
 407  /**
 408    + * gmc_v8_0_set_prt - set PRT VM fault
 409    + *
 410    + * @adev: amdgpu_device pointer
 411    + * @enable: enable/disable VM fault handling for PRT
 412    +*/
 413 static void gmc_v6_0_set_prt(struct amdgpu_device *adev, bool enable)
 414 {
 415         u32 tmp;
 416
 417         if (enable && !adev->mc.prt_warning) {
 418                 dev_warn(adev->dev, "Disabling VM faults because of PRT request!\n");
 419                 adev->mc.prt_warning = true;
 420         }
 421
 422         tmp = RREG32(mmVM_PRT_CNTL);
 423         tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
 424                             CB_DISABLE_FAULT_ON_UNMAPPED_ACCESS,
 425                             enable);
 426         tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
 427                             TC_DISABLE_FAULT_ON_UNMAPPED_ACCESS,
 428                             enable);
 429         tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
 430                             L2_CACHE_STORE_INVALID_ENTRIES,
 431                             enable);
 432         tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
 433                             L1_TLB_STORE_INVALID_ENTRIES,
 434                             enable);
 435         WREG32(mmVM_PRT_CNTL, tmp);
 436
 437         if (enable) {
 438                 uint32_t low = AMDGPU_VA_RESERVED_SIZE >> AMDGPU_GPU_PAGE_SHIFT;
 439                 uint32_t high = adev->vm_manager.max_pfn;
 440
 441                 WREG32(mmVM_PRT_APERTURE0_LOW_ADDR, low);
 442                 WREG32(mmVM_PRT_APERTURE1_LOW_ADDR, low);
 443                 WREG32(mmVM_PRT_APERTURE2_LOW_ADDR, low);
 444                 WREG32(mmVM_PRT_APERTURE3_LOW_ADDR, low);
 445                 WREG32(mmVM_PRT_APERTURE0_HIGH_ADDR, high);
 446                 WREG32(mmVM_PRT_APERTURE1_HIGH_ADDR, high);
 447                 WREG32(mmVM_PRT_APERTURE2_HIGH_ADDR, high);
 448                 WREG32(mmVM_PRT_APERTURE3_HIGH_ADDR, high);
 449         } else {
 450                 WREG32(mmVM_PRT_APERTURE0_LOW_ADDR, 0xfffffff);
 451                 WREG32(mmVM_PRT_APERTURE1_LOW_ADDR, 0xfffffff);
 452                 WREG32(mmVM_PRT_APERTURE2_LOW_ADDR, 0xfffffff);
 453                 WREG32(mmVM_PRT_APERTURE3_LOW_ADDR, 0xfffffff);
 454                 WREG32(mmVM_PRT_APERTURE0_HIGH_ADDR, 0x0);
 455                 WREG32(mmVM_PRT_APERTURE1_HIGH_ADDR, 0x0);
 456                 WREG32(mmVM_PRT_APERTURE2_HIGH_ADDR, 0x0);
 457                 WREG32(mmVM_PRT_APERTURE3_HIGH_ADDR, 0x0);
 458         }
 459 }
 460
 461 static int gmc_v6_0_gart_enable(struct amdgpu_device *adev)
 462 {
 463         int r, i;
 464
 465         if (adev->gart.robj == NULL) {
 466                 dev_err(adev->dev, "No VRAM object for PCIE GART.\n");
 467                 return -EINVAL;
 468         }
 469         r = amdgpu_gart_table_vram_pin(adev);
 470         if (r)
 471                 return r;
 472         /* Setup TLB control */
 473         WREG32(mmMC_VM_MX_L1_TLB_CNTL,
 474                (0xA << 7) |
 475                MC_VM_MX_L1_TLB_CNTL__ENABLE_L1_TLB_MASK |
 476                MC_VM_MX_L1_TLB_CNTL__ENABLE_L1_FRAGMENT_PROCESSING_MASK |
 477                MC_VM_MX_L1_TLB_CNTL__SYSTEM_ACCESS_MODE_MASK |
 478                MC_VM_MX_L1_TLB_CNTL__ENABLE_ADVANCED_DRIVER_MODEL_MASK |
 479                (0UL << MC_VM_MX_L1_TLB_CNTL__SYSTEM_APERTURE_UNMAPPED_ACCESS__SHIFT));
 480         /* Setup L2 cache */
 481         WREG32(mmVM_L2_CNTL,
 482                VM_L2_CNTL__ENABLE_L2_CACHE_MASK |
 483                VM_L2_CNTL__ENABLE_L2_FRAGMENT_PROCESSING_MASK |
 484                VM_L2_CNTL__ENABLE_L2_PTE_CACHE_LRU_UPDATE_BY_WRITE_MASK |
 485                VM_L2_CNTL__ENABLE_L2_PDE0_CACHE_LRU_UPDATE_BY_WRITE_MASK |
 486                (7UL << VM_L2_CNTL__EFFECTIVE_L2_QUEUE_SIZE__SHIFT) |
 487                (1UL << VM_L2_CNTL__CONTEXT1_IDENTITY_ACCESS_MODE__SHIFT));
 488         WREG32(mmVM_L2_CNTL2,
 489                VM_L2_CNTL2__INVALIDATE_ALL_L1_TLBS_MASK |
 490                VM_L2_CNTL2__INVALIDATE_L2_CACHE_MASK);
 491         WREG32(mmVM_L2_CNTL3,
 492                VM_L2_CNTL3__L2_CACHE_BIGK_ASSOCIATIVITY_MASK |
 493                (4UL << VM_L2_CNTL3__BANK_SELECT__SHIFT) |
 494                (4UL << VM_L2_CNTL3__L2_CACHE_BIGK_FRAGMENT_SIZE__SHIFT));
 495         /* setup context0 */
 496         WREG32(mmVM_CONTEXT0_PAGE_TABLE_START_ADDR, adev->mc.gart_start >> 12);
 497         WREG32(mmVM_CONTEXT0_PAGE_TABLE_END_ADDR, adev->mc.gart_end >> 12);
 498         WREG32(mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR, adev->gart.table_addr >> 12);
 499         WREG32(mmVM_CONTEXT0_PROTECTION_FAULT_DEFAULT_ADDR,
 500                         (u32)(adev->dummy_page.addr >> 12));
 501         WREG32(mmVM_CONTEXT0_CNTL2, 0);
 502         WREG32(mmVM_CONTEXT0_CNTL,
 503                VM_CONTEXT0_CNTL__ENABLE_CONTEXT_MASK |
 504                (0UL << VM_CONTEXT0_CNTL__PAGE_TABLE_DEPTH__SHIFT) |
 505                VM_CONTEXT0_CNTL__RANGE_PROTECTION_FAULT_ENABLE_DEFAULT_MASK);
 506
 507         WREG32(0x575, 0);
 508         WREG32(0x576, 0);
 509         WREG32(0x577, 0);
 510
 511         /* empty context1-15 */
 512         /* set vm size, must be a multiple of 4 */
 513         WREG32(mmVM_CONTEXT1_PAGE_TABLE_START_ADDR, 0);
 514         WREG32(mmVM_CONTEXT1_PAGE_TABLE_END_ADDR, adev->vm_manager.max_pfn - 1);
 515         /* Assign the pt base to something valid for now; the pts used for
 516          * the VMs are determined by the application and setup and assigned
 517          * on the fly in the vm part of radeon_gart.c
 518          */
 519         for (i = 1; i < 16; i++) {
 520                 if (i < 8)
 521                         WREG32(mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR + i,
 522                                adev->gart.table_addr >> 12);
 523                 else
 524                         WREG32(mmVM_CONTEXT8_PAGE_TABLE_BASE_ADDR + i - 8,
 525                                adev->gart.table_addr >> 12);
 526         }
 527
 528         /* enable context1-15 */
 529         WREG32(mmVM_CONTEXT1_PROTECTION_FAULT_DEFAULT_ADDR,
 530                (u32)(adev->dummy_page.addr >> 12));
 531         WREG32(mmVM_CONTEXT1_CNTL2, 4);
 532         WREG32(mmVM_CONTEXT1_CNTL,
 533                VM_CONTEXT1_CNTL__ENABLE_CONTEXT_MASK |
 534                (1UL << VM_CONTEXT1_CNTL__PAGE_TABLE_DEPTH__SHIFT) |
 535                ((adev->vm_manager.block_size - 9)
 536                << VM_CONTEXT1_CNTL__PAGE_TABLE_BLOCK_SIZE__SHIFT));
 537         if (amdgpu_vm_fault_stop == AMDGPU_VM_FAULT_STOP_ALWAYS)
 538                 gmc_v6_0_set_fault_enable_default(adev, false);
 539         else
 540                 gmc_v6_0_set_fault_enable_default(adev, true);
 541
 542         gmc_v6_0_gart_flush_gpu_tlb(adev, 0);
 543         dev_info(adev->dev, "PCIE GART of %uM enabled (table at 0x%016llX).\n",
 544                  (unsigned)(adev->mc.gart_size >> 20),
 545                  (unsigned long long)adev->gart.table_addr);
 546         adev->gart.ready = true;
 547         return 0;
 548 }
 549
 550 static int gmc_v6_0_gart_init(struct amdgpu_device *adev)
 551 {
 552         int r;
 553
 554         if (adev->gart.robj) {
 555                 dev_warn(adev->dev, "gmc_v6_0 PCIE GART already initialized\n");
 556                 return 0;
 557         }
 558         r = amdgpu_gart_init(adev);
 559         if (r)
 560                 return r;
 561         adev->gart.table_size = adev->gart.num_gpu_pages * 8;
 562         adev->gart.gart_pte_flags = 0;
 563         return amdgpu_gart_table_vram_alloc(adev);
 564 }
 565
 566 static void gmc_v6_0_gart_disable(struct amdgpu_device *adev)
 567 {
 568         /*unsigned i;
 569
 570         for (i = 1; i < 16; ++i) {
 571                 uint32_t reg;
 572                 if (i < 8)
 573                         reg = VM_CONTEXT0_PAGE_TABLE_BASE_ADDR + i ;
 574                 else
 575                         reg = VM_CONTEXT8_PAGE_TABLE_BASE_ADDR + (i - 8);
 576                 adev->vm_manager.saved_table_addr[i] = RREG32(reg);
 577         }*/
 578
 579         /* Disable all tables */
 580         WREG32(mmVM_CONTEXT0_CNTL, 0);
 581         WREG32(mmVM_CONTEXT1_CNTL, 0);
 582         /* Setup TLB control */
 583         WREG32(mmMC_VM_MX_L1_TLB_CNTL,
 584                MC_VM_MX_L1_TLB_CNTL__SYSTEM_ACCESS_MODE_MASK |
 585                (0UL << MC_VM_MX_L1_TLB_CNTL__SYSTEM_APERTURE_UNMAPPED_ACCESS__SHIFT));
 586         /* Setup L2 cache */
 587         WREG32(mmVM_L2_CNTL,
 588                VM_L2_CNTL__ENABLE_L2_PTE_CACHE_LRU_UPDATE_BY_WRITE_MASK |
 589                VM_L2_CNTL__ENABLE_L2_PDE0_CACHE_LRU_UPDATE_BY_WRITE_MASK |
 590                (7UL << VM_L2_CNTL__EFFECTIVE_L2_QUEUE_SIZE__SHIFT) |
 591                (1UL << VM_L2_CNTL__CONTEXT1_IDENTITY_ACCESS_MODE__SHIFT));
 592         WREG32(mmVM_L2_CNTL2, 0);
 593         WREG32(mmVM_L2_CNTL3,
 594                VM_L2_CNTL3__L2_CACHE_BIGK_ASSOCIATIVITY_MASK |
 595                (0UL << VM_L2_CNTL3__L2_CACHE_BIGK_FRAGMENT_SIZE__SHIFT));
 596         amdgpu_gart_table_vram_unpin(adev);
 597 }
 598
 599 static void gmc_v6_0_gart_fini(struct amdgpu_device *adev)
 600 {
 601         amdgpu_gart_table_vram_free(adev);
 602         amdgpu_gart_fini(adev);
 603 }
 604
 605 static void gmc_v6_0_vm_decode_fault(struct amdgpu_device *adev,
 606                                      u32 status, u32 addr, u32 mc_client)
 607 {
 608         u32 mc_id;
 609         u32 vmid = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS, VMID);
 610         u32 protections = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS,
 611                                         PROTECTIONS);
 612         char block[5] = { mc_client >> 24, (mc_client >> 16) & 0xff,
 613                 (mc_client >> 8) & 0xff, mc_client & 0xff, 0 };
 614
 615         mc_id = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS,
 616                               MEMORY_CLIENT_ID);
 617
 618         dev_err(adev->dev, "VM fault (0x%02x, vmid %d) at page %u, %s from '%s' (0x%08x) (%d)\n",
 619                protections, vmid, addr,
 620                REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS,
 621                              MEMORY_CLIENT_RW) ?
 622                "write" : "read", block, mc_client, mc_id);
 623 }
 624
 625 /*
 626 static const u32 mc_cg_registers[] = {
 627         MC_HUB_MISC_HUB_CG,
 628         MC_HUB_MISC_SIP_CG,
 629         MC_HUB_MISC_VM_CG,
 630         MC_XPB_CLK_GAT,
 631         ATC_MISC_CG,
 632         MC_CITF_MISC_WR_CG,
 633         MC_CITF_MISC_RD_CG,
 634         MC_CITF_MISC_VM_CG,
 635         VM_L2_CG,
 636 };
 637
 638 static const u32 mc_cg_ls_en[] = {
 639         MC_HUB_MISC_HUB_CG__MEM_LS_ENABLE_MASK,
 640         MC_HUB_MISC_SIP_CG__MEM_LS_ENABLE_MASK,
 641         MC_HUB_MISC_VM_CG__MEM_LS_ENABLE_MASK,
 642         MC_XPB_CLK_GAT__MEM_LS_ENABLE_MASK,
 643         ATC_MISC_CG__MEM_LS_ENABLE_MASK,
 644         MC_CITF_MISC_WR_CG__MEM_LS_ENABLE_MASK,
 645         MC_CITF_MISC_RD_CG__MEM_LS_ENABLE_MASK,
 646         MC_CITF_MISC_VM_CG__MEM_LS_ENABLE_MASK,
 647         VM_L2_CG__MEM_LS_ENABLE_MASK,
 648 };
 649
 650 static const u32 mc_cg_en[] = {
 651         MC_HUB_MISC_HUB_CG__ENABLE_MASK,
 652         MC_HUB_MISC_SIP_CG__ENABLE_MASK,
 653         MC_HUB_MISC_VM_CG__ENABLE_MASK,
 654         MC_XPB_CLK_GAT__ENABLE_MASK,
 655         ATC_MISC_CG__ENABLE_MASK,
 656         MC_CITF_MISC_WR_CG__ENABLE_MASK,
 657         MC_CITF_MISC_RD_CG__ENABLE_MASK,
 658         MC_CITF_MISC_VM_CG__ENABLE_MASK,
 659         VM_L2_CG__ENABLE_MASK,
 660 };
 661
 662 static void gmc_v6_0_enable_mc_ls(struct amdgpu_device *adev,
 663                                   bool enable)
 664 {
 665         int i;
 666         u32 orig, data;
 667
 668         for (i = 0; i < ARRAY_SIZE(mc_cg_registers); i++) {
 669                 orig = data = RREG32(mc_cg_registers[i]);
 670                 if (enable && (adev->cg_flags & AMDGPU_CG_SUPPORT_MC_LS))
 671                         data |= mc_cg_ls_en[i];
 672                 else
 673                         data &= ~mc_cg_ls_en[i];
 674                 if (data != orig)
 675                         WREG32(mc_cg_registers[i], data);
 676         }
 677 }
 678
 679 static void gmc_v6_0_enable_mc_mgcg(struct amdgpu_device *adev,
 680                                     bool enable)
 681 {
 682         int i;
 683         u32 orig, data;
 684
 685         for (i = 0; i < ARRAY_SIZE(mc_cg_registers); i++) {
 686                 orig = data = RREG32(mc_cg_registers[i]);
 687                 if (enable && (adev->cg_flags & AMDGPU_CG_SUPPORT_MC_MGCG))
 688                         data |= mc_cg_en[i];
 689                 else
 690                         data &= ~mc_cg_en[i];
 691                 if (data != orig)
 692                         WREG32(mc_cg_registers[i], data);
 693         }
 694 }
 695
 696 static void gmc_v6_0_enable_bif_mgls(struct amdgpu_device *adev,
 697                                      bool enable)
 698 {
 699         u32 orig, data;
 700
 701         orig = data = RREG32_PCIE(ixPCIE_CNTL2);
 702
 703         if (enable && (adev->cg_flags & AMDGPU_CG_SUPPORT_BIF_LS)) {
 704                 data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_LS_EN, 1);
 705                 data = REG_SET_FIELD(data, PCIE_CNTL2, MST_MEM_LS_EN, 1);
 706                 data = REG_SET_FIELD(data, PCIE_CNTL2, REPLAY_MEM_LS_EN, 1);
 707                 data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_AGGRESSIVE_LS_EN, 1);
 708         } else {
 709                 data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_LS_EN, 0);
 710                 data = REG_SET_FIELD(data, PCIE_CNTL2, MST_MEM_LS_EN, 0);
 711                 data = REG_SET_FIELD(data, PCIE_CNTL2, REPLAY_MEM_LS_EN, 0);
 712                 data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_AGGRESSIVE_LS_EN, 0);
 713         }
 714
 715         if (orig != data)
 716                 WREG32_PCIE(ixPCIE_CNTL2, data);
 717 }
 718
 719 static void gmc_v6_0_enable_hdp_mgcg(struct amdgpu_device *adev,
 720                                      bool enable)
 721 {
 722         u32 orig, data;
 723
 724         orig = data = RREG32(mmHDP_HOST_PATH_CNTL);
 725
 726         if (enable && (adev->cg_flags & AMDGPU_CG_SUPPORT_HDP_MGCG))
 727                 data = REG_SET_FIELD(data, HDP_HOST_PATH_CNTL, CLOCK_GATING_DIS, 0);
 728         else
 729                 data = REG_SET_FIELD(data, HDP_HOST_PATH_CNTL, CLOCK_GATING_DIS, 1);
 730
 731         if (orig != data)
 732                 WREG32(mmHDP_HOST_PATH_CNTL, data);
 733 }
 734
 735 static void gmc_v6_0_enable_hdp_ls(struct amdgpu_device *adev,
 736                                    bool enable)
 737 {
 738         u32 orig, data;
 739
 740         orig = data = RREG32(mmHDP_MEM_POWER_LS);
 741
 742         if (enable && (adev->cg_flags & AMDGPU_CG_SUPPORT_HDP_LS))
 743                 data = REG_SET_FIELD(data, HDP_MEM_POWER_LS, LS_ENABLE, 1);
 744         else
 745                 data = REG_SET_FIELD(data, HDP_MEM_POWER_LS, LS_ENABLE, 0);
 746
 747         if (orig != data)
 748                 WREG32(mmHDP_MEM_POWER_LS, data);
 749 }
 750 */
 751
 752 static int gmc_v6_0_convert_vram_type(int mc_seq_vram_type)
 753 {
 754         switch (mc_seq_vram_type) {
 755         case MC_SEQ_MISC0__MT__GDDR1:
 756                 return AMDGPU_VRAM_TYPE_GDDR1;
 757         case MC_SEQ_MISC0__MT__DDR2:
 758                 return AMDGPU_VRAM_TYPE_DDR2;
 759         case MC_SEQ_MISC0__MT__GDDR3:
 760                 return AMDGPU_VRAM_TYPE_GDDR3;
 761         case MC_SEQ_MISC0__MT__GDDR4:
 762                 return AMDGPU_VRAM_TYPE_GDDR4;
 763         case MC_SEQ_MISC0__MT__GDDR5:
 764                 return AMDGPU_VRAM_TYPE_GDDR5;
 765         case MC_SEQ_MISC0__MT__DDR3:
 766                 return AMDGPU_VRAM_TYPE_DDR3;
 767         default:
 768                 return AMDGPU_VRAM_TYPE_UNKNOWN;
 769         }
 770 }
 771
 772 static int gmc_v6_0_early_init(void *handle)
 773 {
 774         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 775
 776         gmc_v6_0_set_gart_funcs(adev);
 777         gmc_v6_0_set_irq_funcs(adev);
 778
 779         return 0;
 780 }
 781
 782 static int gmc_v6_0_late_init(void *handle)
 783 {
 784         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 785
 786         if (amdgpu_vm_fault_stop != AMDGPU_VM_FAULT_STOP_ALWAYS)
 787                 return amdgpu_irq_get(adev, &adev->mc.vm_fault, 0);
 788         else
 789                 return 0;
 790 }
 791
 792 static int gmc_v6_0_sw_init(void *handle)
 793 {
 794         int r;
 795         int dma_bits;
 796         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 797
 798         if (adev->flags & AMD_IS_APU) {
 799                 adev->mc.vram_type = AMDGPU_VRAM_TYPE_UNKNOWN;
 800         } else {
 801                 u32 tmp = RREG32(mmMC_SEQ_MISC0);
 802                 tmp &= MC_SEQ_MISC0__MT__MASK;
 803                 adev->mc.vram_type = gmc_v6_0_convert_vram_type(tmp);
 804         }
 805
 806         r = amdgpu_irq_add_id(adev, AMDGPU_IH_CLIENTID_LEGACY, 146, &adev->mc.vm_fault);
 807         if (r)
 808                 return r;
 809
 810         r = amdgpu_irq_add_id(adev, AMDGPU_IH_CLIENTID_LEGACY, 147, &adev->mc.vm_fault);
 811         if (r)
 812                 return r;
 813
 814         amdgpu_vm_adjust_size(adev, 64);
 815         adev->vm_manager.max_pfn = adev->vm_manager.vm_size << 18;
 816
 817         adev->mc.mc_mask = 0xffffffffffULL;
 818
 819         adev->mc.stolen_size = 256 * 1024;
 820
 821         adev->need_dma32 = false;
 822         dma_bits = adev->need_dma32 ? 32 : 40;
 823         r = pci_set_dma_mask(adev->pdev, DMA_BIT_MASK(dma_bits));
 824         if (r) {
 825                 adev->need_dma32 = true;
 826                 dma_bits = 32;
 827                 dev_warn(adev->dev, "amdgpu: No suitable DMA available.\n");
 828         }
 829         r = pci_set_consistent_dma_mask(adev->pdev, DMA_BIT_MASK(dma_bits));
 830         if (r) {
 831                 pci_set_consistent_dma_mask(adev->pdev, DMA_BIT_MASK(32));
 832                 dev_warn(adev->dev, "amdgpu: No coherent DMA available.\n");
 833         }
 834
 835         r = gmc_v6_0_init_microcode(adev);
 836         if (r) {
 837                 dev_err(adev->dev, "Failed to load mc firmware!\n");
 838                 return r;
 839         }
 840
 841         r = gmc_v6_0_mc_init(adev);
 842         if (r)
 843                 return r;
 844
 845         r = amdgpu_bo_init(adev);
 846         if (r)
 847                 return r;
 848
 849         r = gmc_v6_0_gart_init(adev);
 850         if (r)
 851                 return r;
 852
 853         /*
 854          * number of VMs
 855          * VMID 0 is reserved for System
 856          * amdgpu graphics/compute will use VMIDs 1-7
 857          * amdkfd will use VMIDs 8-15
 858          */
 859         adev->vm_manager.id_mgr[0].num_ids = AMDGPU_NUM_OF_VMIDS;
 860         adev->vm_manager.num_level = 1;
 861         amdgpu_vm_manager_init(adev);
 862
 863         /* base offset of vram pages */
 864         if (adev->flags & AMD_IS_APU) {
 865                 u64 tmp = RREG32(mmMC_VM_FB_OFFSET);
 866
 867                 tmp <<= 22;
 868                 adev->vm_manager.vram_base_offset = tmp;
 869         } else {
 870                 adev->vm_manager.vram_base_offset = 0;
 871         }
 872
 873         return 0;
 874 }
 875
 876 static int gmc_v6_0_sw_fini(void *handle)
 877 {
 878         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 879
 880         amdgpu_vm_manager_fini(adev);
 881         gmc_v6_0_gart_fini(adev);
 882         amdgpu_gem_force_release(adev);
 883         amdgpu_bo_fini(adev);
 884
 885         return 0;
 886 }
 887
 888 static int gmc_v6_0_hw_init(void *handle)
 889 {
 890         int r;
 891         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 892
 893         gmc_v6_0_mc_program(adev);
 894
 895         if (!(adev->flags & AMD_IS_APU)) {
 896                 r = gmc_v6_0_mc_load_microcode(adev);
 897                 if (r) {
 898                         dev_err(adev->dev, "Failed to load MC firmware!\n");
 899                         return r;
 900                 }
 901         }
 902
 903         r = gmc_v6_0_gart_enable(adev);
 904         if (r)
 905                 return r;
 906
 907         return r;
 908 }
 909
 910 static int gmc_v6_0_hw_fini(void *handle)
 911 {
 912         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 913
 914         amdgpu_irq_put(adev, &adev->mc.vm_fault, 0);
 915         gmc_v6_0_gart_disable(adev);
 916
 917         return 0;
 918 }
 919
 920 static int gmc_v6_0_suspend(void *handle)
 921 {
 922         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 923
 924         gmc_v6_0_hw_fini(adev);
 925
 926         return 0;
 927 }
 928
 929 static int gmc_v6_0_resume(void *handle)
 930 {
 931         int r;
 932         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 933
 934         r = gmc_v6_0_hw_init(adev);
 935         if (r)
 936                 return r;
 937
 938         amdgpu_vm_reset_all_ids(adev);
 939
 940         return 0;
 941 }
 942
 943 static bool gmc_v6_0_is_idle(void *handle)
 944 {
 945         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 946         u32 tmp = RREG32(mmSRBM_STATUS);
 947
 948         if (tmp & (SRBM_STATUS__MCB_BUSY_MASK | SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK |
 949                    SRBM_STATUS__MCC_BUSY_MASK | SRBM_STATUS__MCD_BUSY_MASK | SRBM_STATUS__VMC_BUSY_MASK))
 950                 return false;
 951
 952         return true;
 953 }
 954
 955 static int gmc_v6_0_wait_for_idle(void *handle)
 956 {
 957         unsigned i;
 958         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 959
 960         for (i = 0; i < adev->usec_timeout; i++) {
 961                 if (gmc_v6_0_is_idle(handle))
 962                         return 0;
 963                 udelay(1);
 964         }
 965         return -ETIMEDOUT;
 966
 967 }
 968
 969 static int gmc_v6_0_soft_reset(void *handle)
 970 {
 971         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 972         u32 srbm_soft_reset = 0;
 973         u32 tmp = RREG32(mmSRBM_STATUS);
 974
 975         if (tmp & SRBM_STATUS__VMC_BUSY_MASK)
 976                 srbm_soft_reset = REG_SET_FIELD(srbm_soft_reset,
 977                                                 SRBM_SOFT_RESET, SOFT_RESET_VMC, 1);
 978
 979         if (tmp & (SRBM_STATUS__MCB_BUSY_MASK | SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK |
 980                    SRBM_STATUS__MCC_BUSY_MASK | SRBM_STATUS__MCD_BUSY_MASK)) {
 981                 if (!(adev->flags & AMD_IS_APU))
 982                         srbm_soft_reset = REG_SET_FIELD(srbm_soft_reset,
 983                                                         SRBM_SOFT_RESET, SOFT_RESET_MC, 1);
 984         }
 985
 986         if (srbm_soft_reset) {
 987                 gmc_v6_0_mc_stop(adev);
 988                 if (gmc_v6_0_wait_for_idle(adev)) {
 989                         dev_warn(adev->dev, "Wait for GMC idle timed out !\n");
 990                 }
 991
 992
 993                 tmp = RREG32(mmSRBM_SOFT_RESET);
 994                 tmp |= srbm_soft_reset;
 995                 dev_info(adev->dev, "SRBM_SOFT_RESET=0x%08X\n", tmp);
 996                 WREG32(mmSRBM_SOFT_RESET, tmp);
 997                 tmp = RREG32(mmSRBM_SOFT_RESET);
 998
 999                 udelay(50);
1000
1001                 tmp &= ~srbm_soft_reset;
1002                 WREG32(mmSRBM_SOFT_RESET, tmp);
1003                 tmp = RREG32(mmSRBM_SOFT_RESET);
1004
1005                 udelay(50);
1006
1007                 gmc_v6_0_mc_resume(adev);
1008                 udelay(50);
1009         }
1010
1011         return 0;
1012 }
1013
1014 static int gmc_v6_0_vm_fault_interrupt_state(struct amdgpu_device *adev,
1015                                              struct amdgpu_irq_src *src,
1016                                              unsigned type,
1017                                              enum amdgpu_interrupt_state state)
1018 {
1019         u32 tmp;
1020         u32 bits = (VM_CONTEXT1_CNTL__RANGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1021                     VM_CONTEXT1_CNTL__DUMMY_PAGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1022                     VM_CONTEXT1_CNTL__PDE0_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1023                     VM_CONTEXT1_CNTL__VALID_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1024                     VM_CONTEXT1_CNTL__READ_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1025                     VM_CONTEXT1_CNTL__WRITE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK);
1026
1027         switch (state) {
1028         case AMDGPU_IRQ_STATE_DISABLE:
1029                 tmp = RREG32(mmVM_CONTEXT0_CNTL);
1030                 tmp &= ~bits;
1031                 WREG32(mmVM_CONTEXT0_CNTL, tmp);
1032                 tmp = RREG32(mmVM_CONTEXT1_CNTL);
1033                 tmp &= ~bits;
1034                 WREG32(mmVM_CONTEXT1_CNTL, tmp);
1035                 break;
1036         case AMDGPU_IRQ_STATE_ENABLE:
1037                 tmp = RREG32(mmVM_CONTEXT0_CNTL);
1038                 tmp |= bits;
1039                 WREG32(mmVM_CONTEXT0_CNTL, tmp);
1040                 tmp = RREG32(mmVM_CONTEXT1_CNTL);
1041                 tmp |= bits;
1042                 WREG32(mmVM_CONTEXT1_CNTL, tmp);
1043                 break;
1044         default:
1045                 break;
1046         }
1047
1048         return 0;
1049 }
1050
1051 static int gmc_v6_0_process_interrupt(struct amdgpu_device *adev,
1052                                       struct amdgpu_irq_src *source,
1053                                       struct amdgpu_iv_entry *entry)
1054 {
1055         u32 addr, status;
1056
1057         addr = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_ADDR);
1058         status = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_STATUS);
1059         WREG32_P(mmVM_CONTEXT1_CNTL2, 1, ~1);
1060
1061         if (!addr && !status)
1062                 return 0;
1063
1064         if (amdgpu_vm_fault_stop == AMDGPU_VM_FAULT_STOP_FIRST)
1065                 gmc_v6_0_set_fault_enable_default(adev, false);
1066
1067         if (printk_ratelimit()) {
1068                 dev_err(adev->dev, "GPU fault detected: %d 0x%08x\n",
1069                         entry->src_id, entry->src_data[0]);
1070                 dev_err(adev->dev, "  VM_CONTEXT1_PROTECTION_FAULT_ADDR   0x%08X\n",
1071                         addr);
1072                 dev_err(adev->dev, "  VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x%08X\n",
1073                         status);
1074                 gmc_v6_0_vm_decode_fault(adev, status, addr, 0);
1075         }
1076
1077         return 0;
1078 }
1079
1080 static int gmc_v6_0_set_clockgating_state(void *handle,
1081                                           enum amd_clockgating_state state)
1082 {
1083         return 0;
1084 }
1085
1086 static int gmc_v6_0_set_powergating_state(void *handle,
1087                                           enum amd_powergating_state state)
1088 {
1089         return 0;
1090 }
1091
1092 static const struct amd_ip_funcs gmc_v6_0_ip_funcs = {
1093         .name = "gmc_v6_0",
1094         .early_init = gmc_v6_0_early_init,
1095         .late_init = gmc_v6_0_late_init,
1096         .sw_init = gmc_v6_0_sw_init,
1097         .sw_fini = gmc_v6_0_sw_fini,
1098         .hw_init = gmc_v6_0_hw_init,
1099         .hw_fini = gmc_v6_0_hw_fini,
1100         .suspend = gmc_v6_0_suspend,
1101         .resume = gmc_v6_0_resume,
1102         .is_idle = gmc_v6_0_is_idle,
1103         .wait_for_idle = gmc_v6_0_wait_for_idle,
1104         .soft_reset = gmc_v6_0_soft_reset,
1105         .set_clockgating_state = gmc_v6_0_set_clockgating_state,
1106         .set_powergating_state = gmc_v6_0_set_powergating_state,
1107 };
1108
1109 static const struct amdgpu_gart_funcs gmc_v6_0_gart_funcs = {
1110         .flush_gpu_tlb = gmc_v6_0_gart_flush_gpu_tlb,
1111         .set_pte_pde = gmc_v6_0_gart_set_pte_pde,
1112         .set_prt = gmc_v6_0_set_prt,
1113         .get_vm_pde = gmc_v6_0_get_vm_pde,
1114         .get_vm_pte_flags = gmc_v6_0_get_vm_pte_flags
1115 };
1116
1117 static const struct amdgpu_irq_src_funcs gmc_v6_0_irq_funcs = {
1118         .set = gmc_v6_0_vm_fault_interrupt_state,
1119         .process = gmc_v6_0_process_interrupt,
1120 };
1121
1122 static void gmc_v6_0_set_gart_funcs(struct amdgpu_device *adev)
1123 {
1124         if (adev->gart.gart_funcs == NULL)
1125                 adev->gart.gart_funcs = &gmc_v6_0_gart_funcs;
1126 }
1127
1128 static void gmc_v6_0_set_irq_funcs(struct amdgpu_device *adev)
1129 {
1130         adev->mc.vm_fault.num_types = 1;
1131         adev->mc.vm_fault.funcs = &gmc_v6_0_irq_funcs;
1132 }
1133
1134 const struct amdgpu_ip_block_version gmc_v6_0_ip_block =
1135 {
1136         .type = AMD_IP_BLOCK_TYPE_GMC,
1137         .major = 6,
1138         .minor = 0,
1139         .rev = 0,
1140         .funcs = &gmc_v6_0_ip_funcs,
1141 };