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

   1 /*
   2  * Copyright 2014 Advanced Micro Devices, Inc.
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice shall be included in
  12  * all copies or substantial portions of the Software.
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  20  * OTHER DEALINGS IN THE SOFTWARE.
  21  *
  22  */
  23
  24 #include <linux/firmware.h>
  25 #include <linux/module.h>
  26 #include <linux/pci.h>
  27
  28 #include <drm/drm_cache.h>
  29 #include "amdgpu.h"
  30 #include "cikd.h"
  31 #include "cik.h"
  32 #include "gmc_v7_0.h"
  33 #include "amdgpu_ucode.h"
  34 #include "amdgpu_amdkfd.h"
  35 #include "amdgpu_gem.h"
  36
  37 #include "bif/bif_4_1_d.h"
  38 #include "bif/bif_4_1_sh_mask.h"
  39
  40 #include "gmc/gmc_7_1_d.h"
  41 #include "gmc/gmc_7_1_sh_mask.h"
  42
  43 #include "oss/oss_2_0_d.h"
  44 #include "oss/oss_2_0_sh_mask.h"
  45
  46 #include "dce/dce_8_0_d.h"
  47 #include "dce/dce_8_0_sh_mask.h"
  48
  49 #include "amdgpu_atombios.h"
  50
  51 #include "ivsrcid/ivsrcid_vislands30.h"
  52
  53 static void gmc_v7_0_set_gmc_funcs(struct amdgpu_device *adev);
  54 static void gmc_v7_0_set_irq_funcs(struct amdgpu_device *adev);
  55 static int gmc_v7_0_wait_for_idle(void *handle);
  56
  57 MODULE_FIRMWARE("amdgpu/bonaire_mc.bin");
  58 MODULE_FIRMWARE("amdgpu/hawaii_mc.bin");
  59 MODULE_FIRMWARE("amdgpu/topaz_mc.bin");
  60
  61 static const u32 golden_settings_iceland_a11[] =
  62 {
  63         mmVM_PRT_APERTURE0_LOW_ADDR, 0x0fffffff, 0x0fffffff,
  64         mmVM_PRT_APERTURE1_LOW_ADDR, 0x0fffffff, 0x0fffffff,
  65         mmVM_PRT_APERTURE2_LOW_ADDR, 0x0fffffff, 0x0fffffff,
  66         mmVM_PRT_APERTURE3_LOW_ADDR, 0x0fffffff, 0x0fffffff
  67 };
  68
  69 static const u32 iceland_mgcg_cgcg_init[] =
  70 {
  71         mmMC_MEM_POWER_LS, 0xffffffff, 0x00000104
  72 };
  73
  74 static void gmc_v7_0_init_golden_registers(struct amdgpu_device *adev)
  75 {
  76         switch (adev->asic_type) {
  77         case CHIP_TOPAZ:
  78                 amdgpu_device_program_register_sequence(adev,
  79                                                         iceland_mgcg_cgcg_init,
  80                                                         ARRAY_SIZE(iceland_mgcg_cgcg_init));
  81                 amdgpu_device_program_register_sequence(adev,
  82                                                         golden_settings_iceland_a11,
  83                                                         ARRAY_SIZE(golden_settings_iceland_a11));
  84                 break;
  85         default:
  86                 break;
  87         }
  88 }
  89
  90 static void gmc_v7_0_mc_stop(struct amdgpu_device *adev)
  91 {
  92         u32 blackout;
  93
  94         gmc_v7_0_wait_for_idle((void *)adev);
  95
  96         blackout = RREG32(mmMC_SHARED_BLACKOUT_CNTL);
  97         if (REG_GET_FIELD(blackout, MC_SHARED_BLACKOUT_CNTL, BLACKOUT_MODE) != 1) {
  98                 /* Block CPU access */
  99                 WREG32(mmBIF_FB_EN, 0);
 100                 /* blackout the MC */
 101                 blackout = REG_SET_FIELD(blackout,
 102                                          MC_SHARED_BLACKOUT_CNTL, BLACKOUT_MODE, 0);
 103                 WREG32(mmMC_SHARED_BLACKOUT_CNTL, blackout | 1);
 104         }
 105         /* wait for the MC to settle */
 106         udelay(100);
 107 }
 108
 109 static void gmc_v7_0_mc_resume(struct amdgpu_device *adev)
 110 {
 111         u32 tmp;
 112
 113         /* unblackout the MC */
 114         tmp = RREG32(mmMC_SHARED_BLACKOUT_CNTL);
 115         tmp = REG_SET_FIELD(tmp, MC_SHARED_BLACKOUT_CNTL, BLACKOUT_MODE, 0);
 116         WREG32(mmMC_SHARED_BLACKOUT_CNTL, tmp);
 117         /* allow CPU access */
 118         tmp = REG_SET_FIELD(0, BIF_FB_EN, FB_READ_EN, 1);
 119         tmp = REG_SET_FIELD(tmp, BIF_FB_EN, FB_WRITE_EN, 1);
 120         WREG32(mmBIF_FB_EN, tmp);
 121 }
 122
 123 /**
 124  * gmc_v7_0_init_microcode - load ucode images from disk
 125  *
 126  * @adev: amdgpu_device pointer
 127  *
 128  * Use the firmware interface to load the ucode images into
 129  * the driver (not loaded into hw).
 130  * Returns 0 on success, error on failure.
 131  */
 132 static int gmc_v7_0_init_microcode(struct amdgpu_device *adev)
 133 {
 134         const char *chip_name;
 135         char fw_name[30];
 136         int err;
 137
 138         DRM_DEBUG("\n");
 139
 140         switch (adev->asic_type) {
 141         case CHIP_BONAIRE:
 142                 chip_name = "bonaire";
 143                 break;
 144         case CHIP_HAWAII:
 145                 chip_name = "hawaii";
 146                 break;
 147         case CHIP_TOPAZ:
 148                 chip_name = "topaz";
 149                 break;
 150         case CHIP_KAVERI:
 151         case CHIP_KABINI:
 152         case CHIP_MULLINS:
 153                 return 0;
 154         default: BUG();
 155         }
 156
 157         snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_mc.bin", chip_name);
 158
 159         err = request_firmware(&adev->gmc.fw, fw_name, adev->dev);
 160         if (err)
 161                 goto out;
 162         err = amdgpu_ucode_validate(adev->gmc.fw);
 163
 164 out:
 165         if (err) {
 166                 pr_err("cik_mc: Failed to load firmware \"%s\"\n", fw_name);
 167                 release_firmware(adev->gmc.fw);
 168                 adev->gmc.fw = NULL;
 169         }
 170         return err;
 171 }
 172
 173 /**
 174  * gmc_v7_0_mc_load_microcode - load MC ucode into the hw
 175  *
 176  * @adev: amdgpu_device pointer
 177  *
 178  * Load the GDDR MC ucode into the hw (CIK).
 179  * Returns 0 on success, error on failure.
 180  */
 181 static int gmc_v7_0_mc_load_microcode(struct amdgpu_device *adev)
 182 {
 183         const struct mc_firmware_header_v1_0 *hdr;
 184         const __le32 *fw_data = NULL;
 185         const __le32 *io_mc_regs = NULL;
 186         u32 running;
 187         int i, ucode_size, regs_size;
 188
 189         if (!adev->gmc.fw)
 190                 return -EINVAL;
 191
 192         hdr = (const struct mc_firmware_header_v1_0 *)adev->gmc.fw->data;
 193         amdgpu_ucode_print_mc_hdr(&hdr->header);
 194
 195         adev->gmc.fw_version = le32_to_cpu(hdr->header.ucode_version);
 196         regs_size = le32_to_cpu(hdr->io_debug_size_bytes) / (4 * 2);
 197         io_mc_regs = (const __le32 *)
 198                 (adev->gmc.fw->data + le32_to_cpu(hdr->io_debug_array_offset_bytes));
 199         ucode_size = le32_to_cpu(hdr->header.ucode_size_bytes) / 4;
 200         fw_data = (const __le32 *)
 201                 (adev->gmc.fw->data + le32_to_cpu(hdr->header.ucode_array_offset_bytes));
 202
 203         running = REG_GET_FIELD(RREG32(mmMC_SEQ_SUP_CNTL), MC_SEQ_SUP_CNTL, RUN);
 204
 205         if (running == 0) {
 206                 /* reset the engine and set to writable */
 207                 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000008);
 208                 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000010);
 209
 210                 /* load mc io regs */
 211                 for (i = 0; i < regs_size; i++) {
 212                         WREG32(mmMC_SEQ_IO_DEBUG_INDEX, le32_to_cpup(io_mc_regs++));
 213                         WREG32(mmMC_SEQ_IO_DEBUG_DATA, le32_to_cpup(io_mc_regs++));
 214                 }
 215                 /* load the MC ucode */
 216                 for (i = 0; i < ucode_size; i++)
 217                         WREG32(mmMC_SEQ_SUP_PGM, le32_to_cpup(fw_data++));
 218
 219                 /* put the engine back into the active state */
 220                 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000008);
 221                 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000004);
 222                 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000001);
 223
 224                 /* wait for training to complete */
 225                 for (i = 0; i < adev->usec_timeout; i++) {
 226                         if (REG_GET_FIELD(RREG32(mmMC_SEQ_TRAIN_WAKEUP_CNTL),
 227                                           MC_SEQ_TRAIN_WAKEUP_CNTL, TRAIN_DONE_D0))
 228                                 break;
 229                         udelay(1);
 230                 }
 231                 for (i = 0; i < adev->usec_timeout; i++) {
 232                         if (REG_GET_FIELD(RREG32(mmMC_SEQ_TRAIN_WAKEUP_CNTL),
 233                                           MC_SEQ_TRAIN_WAKEUP_CNTL, TRAIN_DONE_D1))
 234                                 break;
 235                         udelay(1);
 236                 }
 237         }
 238
 239         return 0;
 240 }
 241
 242 static void gmc_v7_0_vram_gtt_location(struct amdgpu_device *adev,
 243                                        struct amdgpu_gmc *mc)
 244 {
 245         u64 base = RREG32(mmMC_VM_FB_LOCATION) & 0xFFFF;
 246         base <<= 24;
 247
 248         amdgpu_gmc_vram_location(adev, mc, base);
 249         amdgpu_gmc_gart_location(adev, mc);
 250 }
 251
 252 /**
 253  * gmc_v7_0_mc_program - program the GPU memory controller
 254  *
 255  * @adev: amdgpu_device pointer
 256  *
 257  * Set the location of vram, gart, and AGP in the GPU's
 258  * physical address space (CIK).
 259  */
 260 static void gmc_v7_0_mc_program(struct amdgpu_device *adev)
 261 {
 262         u32 tmp;
 263         int i, j;
 264
 265         /* Initialize HDP */
 266         for (i = 0, j = 0; i < 32; i++, j += 0x6) {
 267                 WREG32((0xb05 + j), 0x00000000);
 268                 WREG32((0xb06 + j), 0x00000000);
 269                 WREG32((0xb07 + j), 0x00000000);
 270                 WREG32((0xb08 + j), 0x00000000);
 271                 WREG32((0xb09 + j), 0x00000000);
 272         }
 273         WREG32(mmHDP_REG_COHERENCY_FLUSH_CNTL, 0);
 274
 275         if (gmc_v7_0_wait_for_idle((void *)adev)) {
 276                 dev_warn(adev->dev, "Wait for MC idle timedout !\n");
 277         }
 278         if (adev->mode_info.num_crtc) {
 279                 /* Lockout access through VGA aperture*/
 280                 tmp = RREG32(mmVGA_HDP_CONTROL);
 281                 tmp = REG_SET_FIELD(tmp, VGA_HDP_CONTROL, VGA_MEMORY_DISABLE, 1);
 282                 WREG32(mmVGA_HDP_CONTROL, tmp);
 283
 284                 /* disable VGA render */
 285                 tmp = RREG32(mmVGA_RENDER_CONTROL);
 286                 tmp = REG_SET_FIELD(tmp, VGA_RENDER_CONTROL, VGA_VSTATUS_CNTL, 0);
 287                 WREG32(mmVGA_RENDER_CONTROL, tmp);
 288         }
 289         /* Update configuration */
 290         WREG32(mmMC_VM_SYSTEM_APERTURE_LOW_ADDR,
 291                adev->gmc.vram_start >> 12);
 292         WREG32(mmMC_VM_SYSTEM_APERTURE_HIGH_ADDR,
 293                adev->gmc.vram_end >> 12);
 294         WREG32(mmMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR,
 295                adev->vram_scratch.gpu_addr >> 12);
 296         WREG32(mmMC_VM_AGP_BASE, 0);
 297         WREG32(mmMC_VM_AGP_TOP, 0x0FFFFFFF);
 298         WREG32(mmMC_VM_AGP_BOT, 0x0FFFFFFF);
 299         if (gmc_v7_0_wait_for_idle((void *)adev)) {
 300                 dev_warn(adev->dev, "Wait for MC idle timedout !\n");
 301         }
 302
 303         WREG32(mmBIF_FB_EN, BIF_FB_EN__FB_READ_EN_MASK | BIF_FB_EN__FB_WRITE_EN_MASK);
 304
 305         tmp = RREG32(mmHDP_MISC_CNTL);
 306         tmp = REG_SET_FIELD(tmp, HDP_MISC_CNTL, FLUSH_INVALIDATE_CACHE, 0);
 307         WREG32(mmHDP_MISC_CNTL, tmp);
 308
 309         tmp = RREG32(mmHDP_HOST_PATH_CNTL);
 310         WREG32(mmHDP_HOST_PATH_CNTL, tmp);
 311 }
 312
 313 /**
 314  * gmc_v7_0_mc_init - initialize the memory controller driver params
 315  *
 316  * @adev: amdgpu_device pointer
 317  *
 318  * Look up the amount of vram, vram width, and decide how to place
 319  * vram and gart within the GPU's physical address space (CIK).
 320  * Returns 0 for success.
 321  */
 322 static int gmc_v7_0_mc_init(struct amdgpu_device *adev)
 323 {
 324         int r;
 325
 326         adev->gmc.vram_width = amdgpu_atombios_get_vram_width(adev);
 327         if (!adev->gmc.vram_width) {
 328                 u32 tmp;
 329                 int chansize, numchan;
 330
 331                 /* Get VRAM informations */
 332                 tmp = RREG32(mmMC_ARB_RAMCFG);
 333                 if (REG_GET_FIELD(tmp, MC_ARB_RAMCFG, CHANSIZE)) {
 334                         chansize = 64;
 335                 } else {
 336                         chansize = 32;
 337                 }
 338                 tmp = RREG32(mmMC_SHARED_CHMAP);
 339                 switch (REG_GET_FIELD(tmp, MC_SHARED_CHMAP, NOOFCHAN)) {
 340                 case 0:
 341                 default:
 342                         numchan = 1;
 343                         break;
 344                 case 1:
 345                         numchan = 2;
 346                         break;
 347                 case 2:
 348                         numchan = 4;
 349                         break;
 350                 case 3:
 351                         numchan = 8;
 352                         break;
 353                 case 4:
 354                         numchan = 3;
 355                         break;
 356                 case 5:
 357                         numchan = 6;
 358                         break;
 359                 case 6:
 360                         numchan = 10;
 361                         break;
 362                 case 7:
 363                         numchan = 12;
 364                         break;
 365                 case 8:
 366                         numchan = 16;
 367                         break;
 368                 }
 369                 adev->gmc.vram_width = numchan * chansize;
 370         }
 371         /* size in MB on si */
 372         adev->gmc.mc_vram_size = RREG32(mmCONFIG_MEMSIZE) * 1024ULL * 1024ULL;
 373         adev->gmc.real_vram_size = RREG32(mmCONFIG_MEMSIZE) * 1024ULL * 1024ULL;
 374
 375         if (!(adev->flags & AMD_IS_APU)) {
 376                 r = amdgpu_device_resize_fb_bar(adev);
 377                 if (r)
 378                         return r;
 379         }
 380         adev->gmc.aper_base = pci_resource_start(adev->pdev, 0);
 381         adev->gmc.aper_size = pci_resource_len(adev->pdev, 0);
 382
 383 #ifdef CONFIG_X86_64
 384         if (adev->flags & AMD_IS_APU) {
 385                 adev->gmc.aper_base = ((u64)RREG32(mmMC_VM_FB_OFFSET)) << 22;
 386                 adev->gmc.aper_size = adev->gmc.real_vram_size;
 387         }
 388 #endif
 389
 390         /* In case the PCI BAR is larger than the actual amount of vram */
 391         adev->gmc.visible_vram_size = adev->gmc.aper_size;
 392         if (adev->gmc.visible_vram_size > adev->gmc.real_vram_size)
 393                 adev->gmc.visible_vram_size = adev->gmc.real_vram_size;
 394
 395         /* set the gart size */
 396         if (amdgpu_gart_size == -1) {
 397                 switch (adev->asic_type) {
 398                 case CHIP_TOPAZ:     /* no MM engines */
 399                 default:
 400                         adev->gmc.gart_size = 256ULL << 20;
 401                         break;
 402 #ifdef CONFIG_DRM_AMDGPU_CIK
 403                 case CHIP_BONAIRE: /* UVD, VCE do not support GPUVM */
 404                 case CHIP_HAWAII:  /* UVD, VCE do not support GPUVM */
 405                 case CHIP_KAVERI:  /* UVD, VCE do not support GPUVM */
 406                 case CHIP_KABINI:  /* UVD, VCE do not support GPUVM */
 407                 case CHIP_MULLINS: /* UVD, VCE do not support GPUVM */
 408                         adev->gmc.gart_size = 1024ULL << 20;
 409                         break;
 410 #endif
 411                 }
 412         } else {
 413                 adev->gmc.gart_size = (u64)amdgpu_gart_size << 20;
 414         }
 415
 416         gmc_v7_0_vram_gtt_location(adev, &adev->gmc);
 417
 418         return 0;
 419 }
 420
 421 /*
 422  * GART
 423  * VMID 0 is the physical GPU addresses as used by the kernel.
 424  * VMIDs 1-15 are used for userspace clients and are handled
 425  * by the amdgpu vm/hsa code.
 426  */
 427
 428 /**
 429  * gmc_v7_0_flush_gpu_tlb - gart tlb flush callback
 430  *
 431  * @adev: amdgpu_device pointer
 432  * @vmid: vm instance to flush
 433  *
 434  * Flush the TLB for the requested page table (CIK).
 435  */
 436 static void gmc_v7_0_flush_gpu_tlb(struct amdgpu_device *adev, uint32_t vmid,
 437                                         uint32_t vmhub, uint32_t flush_type)
 438 {
 439         /* bits 0-15 are the VM contexts0-15 */
 440         WREG32(mmVM_INVALIDATE_REQUEST, 1 << vmid);
 441 }
 442
 443 static uint64_t gmc_v7_0_emit_flush_gpu_tlb(struct amdgpu_ring *ring,
 444                                             unsigned vmid, uint64_t pd_addr)
 445 {
 446         uint32_t reg;
 447
 448         if (vmid < 8)
 449                 reg = mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR + vmid;
 450         else
 451                 reg = mmVM_CONTEXT8_PAGE_TABLE_BASE_ADDR + vmid - 8;
 452         amdgpu_ring_emit_wreg(ring, reg, pd_addr >> 12);
 453
 454         /* bits 0-15 are the VM contexts0-15 */
 455         amdgpu_ring_emit_wreg(ring, mmVM_INVALIDATE_REQUEST, 1 << vmid);
 456
 457         return pd_addr;
 458 }
 459
 460 static void gmc_v7_0_emit_pasid_mapping(struct amdgpu_ring *ring, unsigned vmid,
 461                                         unsigned pasid)
 462 {
 463         amdgpu_ring_emit_wreg(ring, mmIH_VMID_0_LUT + vmid, pasid);
 464 }
 465
 466 static void gmc_v7_0_get_vm_pde(struct amdgpu_device *adev, int level,
 467                                 uint64_t *addr, uint64_t *flags)
 468 {
 469         BUG_ON(*addr & 0xFFFFFF0000000FFFULL);
 470 }
 471
 472 static void gmc_v7_0_get_vm_pte(struct amdgpu_device *adev,
 473                                 struct amdgpu_bo_va_mapping *mapping,
 474                                 uint64_t *flags)
 475 {
 476         *flags &= ~AMDGPU_PTE_EXECUTABLE;
 477         *flags &= ~AMDGPU_PTE_PRT;
 478 }
 479
 480 /**
 481  * gmc_v8_0_set_fault_enable_default - update VM fault handling
 482  *
 483  * @adev: amdgpu_device pointer
 484  * @value: true redirects VM faults to the default page
 485  */
 486 static void gmc_v7_0_set_fault_enable_default(struct amdgpu_device *adev,
 487                                               bool value)
 488 {
 489         u32 tmp;
 490
 491         tmp = RREG32(mmVM_CONTEXT1_CNTL);
 492         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 493                             RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 494         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 495                             DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 496         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 497                             PDE0_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 498         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 499                             VALID_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 500         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 501                             READ_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 502         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 503                             WRITE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 504         WREG32(mmVM_CONTEXT1_CNTL, tmp);
 505 }
 506
 507 /**
 508  * gmc_v7_0_set_prt - set PRT VM fault
 509  *
 510  * @adev: amdgpu_device pointer
 511  * @enable: enable/disable VM fault handling for PRT
 512  */
 513 static void gmc_v7_0_set_prt(struct amdgpu_device *adev, bool enable)
 514 {
 515         uint32_t tmp;
 516
 517         if (enable && !adev->gmc.prt_warning) {
 518                 dev_warn(adev->dev, "Disabling VM faults because of PRT request!\n");
 519                 adev->gmc.prt_warning = true;
 520         }
 521
 522         tmp = RREG32(mmVM_PRT_CNTL);
 523         tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
 524                             CB_DISABLE_READ_FAULT_ON_UNMAPPED_ACCESS, enable);
 525         tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
 526                             CB_DISABLE_WRITE_FAULT_ON_UNMAPPED_ACCESS, enable);
 527         tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
 528                             TC_DISABLE_READ_FAULT_ON_UNMAPPED_ACCESS, enable);
 529         tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
 530                             TC_DISABLE_WRITE_FAULT_ON_UNMAPPED_ACCESS, enable);
 531         tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
 532                             L2_CACHE_STORE_INVALID_ENTRIES, enable);
 533         tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
 534                             L1_TLB_STORE_INVALID_ENTRIES, enable);
 535         tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
 536                             MASK_PDE0_FAULT, enable);
 537         WREG32(mmVM_PRT_CNTL, tmp);
 538
 539         if (enable) {
 540                 uint32_t low = AMDGPU_VA_RESERVED_SIZE >> AMDGPU_GPU_PAGE_SHIFT;
 541                 uint32_t high = adev->vm_manager.max_pfn -
 542                         (AMDGPU_VA_RESERVED_SIZE >> AMDGPU_GPU_PAGE_SHIFT);
 543
 544                 WREG32(mmVM_PRT_APERTURE0_LOW_ADDR, low);
 545                 WREG32(mmVM_PRT_APERTURE1_LOW_ADDR, low);
 546                 WREG32(mmVM_PRT_APERTURE2_LOW_ADDR, low);
 547                 WREG32(mmVM_PRT_APERTURE3_LOW_ADDR, low);
 548                 WREG32(mmVM_PRT_APERTURE0_HIGH_ADDR, high);
 549                 WREG32(mmVM_PRT_APERTURE1_HIGH_ADDR, high);
 550                 WREG32(mmVM_PRT_APERTURE2_HIGH_ADDR, high);
 551                 WREG32(mmVM_PRT_APERTURE3_HIGH_ADDR, high);
 552         } else {
 553                 WREG32(mmVM_PRT_APERTURE0_LOW_ADDR, 0xfffffff);
 554                 WREG32(mmVM_PRT_APERTURE1_LOW_ADDR, 0xfffffff);
 555                 WREG32(mmVM_PRT_APERTURE2_LOW_ADDR, 0xfffffff);
 556                 WREG32(mmVM_PRT_APERTURE3_LOW_ADDR, 0xfffffff);
 557                 WREG32(mmVM_PRT_APERTURE0_HIGH_ADDR, 0x0);
 558                 WREG32(mmVM_PRT_APERTURE1_HIGH_ADDR, 0x0);
 559                 WREG32(mmVM_PRT_APERTURE2_HIGH_ADDR, 0x0);
 560                 WREG32(mmVM_PRT_APERTURE3_HIGH_ADDR, 0x0);
 561         }
 562 }
 563
 564 /**
 565  * gmc_v7_0_gart_enable - gart enable
 566  *
 567  * @adev: amdgpu_device pointer
 568  *
 569  * This sets up the TLBs, programs the page tables for VMID0,
 570  * sets up the hw for VMIDs 1-15 which are allocated on
 571  * demand, and sets up the global locations for the LDS, GDS,
 572  * and GPUVM for FSA64 clients (CIK).
 573  * Returns 0 for success, errors for failure.
 574  */
 575 static int gmc_v7_0_gart_enable(struct amdgpu_device *adev)
 576 {
 577         uint64_t table_addr;
 578         int r, i;
 579         u32 tmp, field;
 580
 581         if (adev->gart.bo == NULL) {
 582                 dev_err(adev->dev, "No VRAM object for PCIE GART.\n");
 583                 return -EINVAL;
 584         }
 585         r = amdgpu_gart_table_vram_pin(adev);
 586         if (r)
 587                 return r;
 588
 589         table_addr = amdgpu_bo_gpu_offset(adev->gart.bo);
 590
 591         /* Setup TLB control */
 592         tmp = RREG32(mmMC_VM_MX_L1_TLB_CNTL);
 593         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 1);
 594         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_FRAGMENT_PROCESSING, 1);
 595         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, SYSTEM_ACCESS_MODE, 3);
 596         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_ADVANCED_DRIVER_MODEL, 1);
 597         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, SYSTEM_APERTURE_UNMAPPED_ACCESS, 0);
 598         WREG32(mmMC_VM_MX_L1_TLB_CNTL, tmp);
 599         /* Setup L2 cache */
 600         tmp = RREG32(mmVM_L2_CNTL);
 601         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_CACHE, 1);
 602         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_FRAGMENT_PROCESSING, 1);
 603         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_PTE_CACHE_LRU_UPDATE_BY_WRITE, 1);
 604         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_PDE0_CACHE_LRU_UPDATE_BY_WRITE, 1);
 605         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, EFFECTIVE_L2_QUEUE_SIZE, 7);
 606         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, CONTEXT1_IDENTITY_ACCESS_MODE, 1);
 607         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_DEFAULT_PAGE_OUT_TO_SYSTEM_MEMORY, 1);
 608         WREG32(mmVM_L2_CNTL, tmp);
 609         tmp = REG_SET_FIELD(0, VM_L2_CNTL2, INVALIDATE_ALL_L1_TLBS, 1);
 610         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL2, INVALIDATE_L2_CACHE, 1);
 611         WREG32(mmVM_L2_CNTL2, tmp);
 612
 613         field = adev->vm_manager.fragment_size;
 614         tmp = RREG32(mmVM_L2_CNTL3);
 615         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, L2_CACHE_BIGK_ASSOCIATIVITY, 1);
 616         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, BANK_SELECT, field);
 617         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, L2_CACHE_BIGK_FRAGMENT_SIZE, field);
 618         WREG32(mmVM_L2_CNTL3, tmp);
 619         /* setup context0 */
 620         WREG32(mmVM_CONTEXT0_PAGE_TABLE_START_ADDR, adev->gmc.gart_start >> 12);
 621         WREG32(mmVM_CONTEXT0_PAGE_TABLE_END_ADDR, adev->gmc.gart_end >> 12);
 622         WREG32(mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR, table_addr >> 12);
 623         WREG32(mmVM_CONTEXT0_PROTECTION_FAULT_DEFAULT_ADDR,
 624                         (u32)(adev->dummy_page_addr >> 12));
 625         WREG32(mmVM_CONTEXT0_CNTL2, 0);
 626         tmp = RREG32(mmVM_CONTEXT0_CNTL);
 627         tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, ENABLE_CONTEXT, 1);
 628         tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, PAGE_TABLE_DEPTH, 0);
 629         tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 630         WREG32(mmVM_CONTEXT0_CNTL, tmp);
 631
 632         WREG32(0x575, 0);
 633         WREG32(0x576, 0);
 634         WREG32(0x577, 0);
 635
 636         /* empty context1-15 */
 637         /* FIXME start with 4G, once using 2 level pt switch to full
 638          * vm size space
 639          */
 640         /* set vm size, must be a multiple of 4 */
 641         WREG32(mmVM_CONTEXT1_PAGE_TABLE_START_ADDR, 0);
 642         WREG32(mmVM_CONTEXT1_PAGE_TABLE_END_ADDR, adev->vm_manager.max_pfn - 1);
 643         for (i = 1; i < 16; i++) {
 644                 if (i < 8)
 645                         WREG32(mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR + i,
 646                                table_addr >> 12);
 647                 else
 648                         WREG32(mmVM_CONTEXT8_PAGE_TABLE_BASE_ADDR + i - 8,
 649                                table_addr >> 12);
 650         }
 651
 652         /* enable context1-15 */
 653         WREG32(mmVM_CONTEXT1_PROTECTION_FAULT_DEFAULT_ADDR,
 654                (u32)(adev->dummy_page_addr >> 12));
 655         WREG32(mmVM_CONTEXT1_CNTL2, 4);
 656         tmp = RREG32(mmVM_CONTEXT1_CNTL);
 657         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, ENABLE_CONTEXT, 1);
 658         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, PAGE_TABLE_DEPTH, 1);
 659         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, PAGE_TABLE_BLOCK_SIZE,
 660                             adev->vm_manager.block_size - 9);
 661         WREG32(mmVM_CONTEXT1_CNTL, tmp);
 662         if (amdgpu_vm_fault_stop == AMDGPU_VM_FAULT_STOP_ALWAYS)
 663                 gmc_v7_0_set_fault_enable_default(adev, false);
 664         else
 665                 gmc_v7_0_set_fault_enable_default(adev, true);
 666
 667         if (adev->asic_type == CHIP_KAVERI) {
 668                 tmp = RREG32(mmCHUB_CONTROL);
 669                 tmp &= ~BYPASS_VM;
 670                 WREG32(mmCHUB_CONTROL, tmp);
 671         }
 672
 673         gmc_v7_0_flush_gpu_tlb(adev, 0, 0, 0);
 674         DRM_INFO("PCIE GART of %uM enabled (table at 0x%016llX).\n",
 675                  (unsigned)(adev->gmc.gart_size >> 20),
 676                  (unsigned long long)table_addr);
 677         adev->gart.ready = true;
 678         return 0;
 679 }
 680
 681 static int gmc_v7_0_gart_init(struct amdgpu_device *adev)
 682 {
 683         int r;
 684
 685         if (adev->gart.bo) {
 686                 WARN(1, "R600 PCIE GART already initialized\n");
 687                 return 0;
 688         }
 689         /* Initialize common gart structure */
 690         r = amdgpu_gart_init(adev);
 691         if (r)
 692                 return r;
 693         adev->gart.table_size = adev->gart.num_gpu_pages * 8;
 694         adev->gart.gart_pte_flags = 0;
 695         return amdgpu_gart_table_vram_alloc(adev);
 696 }
 697
 698 /**
 699  * gmc_v7_0_gart_disable - gart disable
 700  *
 701  * @adev: amdgpu_device pointer
 702  *
 703  * This disables all VM page table (CIK).
 704  */
 705 static void gmc_v7_0_gart_disable(struct amdgpu_device *adev)
 706 {
 707         u32 tmp;
 708
 709         /* Disable all tables */
 710         WREG32(mmVM_CONTEXT0_CNTL, 0);
 711         WREG32(mmVM_CONTEXT1_CNTL, 0);
 712         /* Setup TLB control */
 713         tmp = RREG32(mmMC_VM_MX_L1_TLB_CNTL);
 714         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 0);
 715         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_FRAGMENT_PROCESSING, 0);
 716         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_ADVANCED_DRIVER_MODEL, 0);
 717         WREG32(mmMC_VM_MX_L1_TLB_CNTL, tmp);
 718         /* Setup L2 cache */
 719         tmp = RREG32(mmVM_L2_CNTL);
 720         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_CACHE, 0);
 721         WREG32(mmVM_L2_CNTL, tmp);
 722         WREG32(mmVM_L2_CNTL2, 0);
 723         amdgpu_gart_table_vram_unpin(adev);
 724 }
 725
 726 /**
 727  * gmc_v7_0_vm_decode_fault - print human readable fault info
 728  *
 729  * @adev: amdgpu_device pointer
 730  * @status: VM_CONTEXT1_PROTECTION_FAULT_STATUS register value
 731  * @addr: VM_CONTEXT1_PROTECTION_FAULT_ADDR register value
 732  *
 733  * Print human readable fault information (CIK).
 734  */
 735 static void gmc_v7_0_vm_decode_fault(struct amdgpu_device *adev, u32 status,
 736                                      u32 addr, u32 mc_client, unsigned pasid)
 737 {
 738         u32 vmid = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS, VMID);
 739         u32 protections = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS,
 740                                         PROTECTIONS);
 741         char block[5] = { mc_client >> 24, (mc_client >> 16) & 0xff,
 742                 (mc_client >> 8) & 0xff, mc_client & 0xff, 0 };
 743         u32 mc_id;
 744
 745         mc_id = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS,
 746                               MEMORY_CLIENT_ID);
 747
 748         dev_err(adev->dev, "VM fault (0x%02x, vmid %d, pasid %d) at page %u, %s from '%s' (0x%08x) (%d)\n",
 749                protections, vmid, pasid, addr,
 750                REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS,
 751                              MEMORY_CLIENT_RW) ?
 752                "write" : "read", block, mc_client, mc_id);
 753 }
 754
 755
 756 static const u32 mc_cg_registers[] = {
 757         mmMC_HUB_MISC_HUB_CG,
 758         mmMC_HUB_MISC_SIP_CG,
 759         mmMC_HUB_MISC_VM_CG,
 760         mmMC_XPB_CLK_GAT,
 761         mmATC_MISC_CG,
 762         mmMC_CITF_MISC_WR_CG,
 763         mmMC_CITF_MISC_RD_CG,
 764         mmMC_CITF_MISC_VM_CG,
 765         mmVM_L2_CG,
 766 };
 767
 768 static const u32 mc_cg_ls_en[] = {
 769         MC_HUB_MISC_HUB_CG__MEM_LS_ENABLE_MASK,
 770         MC_HUB_MISC_SIP_CG__MEM_LS_ENABLE_MASK,
 771         MC_HUB_MISC_VM_CG__MEM_LS_ENABLE_MASK,
 772         MC_XPB_CLK_GAT__MEM_LS_ENABLE_MASK,
 773         ATC_MISC_CG__MEM_LS_ENABLE_MASK,
 774         MC_CITF_MISC_WR_CG__MEM_LS_ENABLE_MASK,
 775         MC_CITF_MISC_RD_CG__MEM_LS_ENABLE_MASK,
 776         MC_CITF_MISC_VM_CG__MEM_LS_ENABLE_MASK,
 777         VM_L2_CG__MEM_LS_ENABLE_MASK,
 778 };
 779
 780 static const u32 mc_cg_en[] = {
 781         MC_HUB_MISC_HUB_CG__ENABLE_MASK,
 782         MC_HUB_MISC_SIP_CG__ENABLE_MASK,
 783         MC_HUB_MISC_VM_CG__ENABLE_MASK,
 784         MC_XPB_CLK_GAT__ENABLE_MASK,
 785         ATC_MISC_CG__ENABLE_MASK,
 786         MC_CITF_MISC_WR_CG__ENABLE_MASK,
 787         MC_CITF_MISC_RD_CG__ENABLE_MASK,
 788         MC_CITF_MISC_VM_CG__ENABLE_MASK,
 789         VM_L2_CG__ENABLE_MASK,
 790 };
 791
 792 static void gmc_v7_0_enable_mc_ls(struct amdgpu_device *adev,
 793                                   bool enable)
 794 {
 795         int i;
 796         u32 orig, data;
 797
 798         for (i = 0; i < ARRAY_SIZE(mc_cg_registers); i++) {
 799                 orig = data = RREG32(mc_cg_registers[i]);
 800                 if (enable && (adev->cg_flags & AMD_CG_SUPPORT_MC_LS))
 801                         data |= mc_cg_ls_en[i];
 802                 else
 803                         data &= ~mc_cg_ls_en[i];
 804                 if (data != orig)
 805                         WREG32(mc_cg_registers[i], data);
 806         }
 807 }
 808
 809 static void gmc_v7_0_enable_mc_mgcg(struct amdgpu_device *adev,
 810                                     bool enable)
 811 {
 812         int i;
 813         u32 orig, data;
 814
 815         for (i = 0; i < ARRAY_SIZE(mc_cg_registers); i++) {
 816                 orig = data = RREG32(mc_cg_registers[i]);
 817                 if (enable && (adev->cg_flags & AMD_CG_SUPPORT_MC_MGCG))
 818                         data |= mc_cg_en[i];
 819                 else
 820                         data &= ~mc_cg_en[i];
 821                 if (data != orig)
 822                         WREG32(mc_cg_registers[i], data);
 823         }
 824 }
 825
 826 static void gmc_v7_0_enable_bif_mgls(struct amdgpu_device *adev,
 827                                      bool enable)
 828 {
 829         u32 orig, data;
 830
 831         orig = data = RREG32_PCIE(ixPCIE_CNTL2);
 832
 833         if (enable && (adev->cg_flags & AMD_CG_SUPPORT_BIF_LS)) {
 834                 data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_LS_EN, 1);
 835                 data = REG_SET_FIELD(data, PCIE_CNTL2, MST_MEM_LS_EN, 1);
 836                 data = REG_SET_FIELD(data, PCIE_CNTL2, REPLAY_MEM_LS_EN, 1);
 837                 data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_AGGRESSIVE_LS_EN, 1);
 838         } else {
 839                 data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_LS_EN, 0);
 840                 data = REG_SET_FIELD(data, PCIE_CNTL2, MST_MEM_LS_EN, 0);
 841                 data = REG_SET_FIELD(data, PCIE_CNTL2, REPLAY_MEM_LS_EN, 0);
 842                 data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_AGGRESSIVE_LS_EN, 0);
 843         }
 844
 845         if (orig != data)
 846                 WREG32_PCIE(ixPCIE_CNTL2, data);
 847 }
 848
 849 static void gmc_v7_0_enable_hdp_mgcg(struct amdgpu_device *adev,
 850                                      bool enable)
 851 {
 852         u32 orig, data;
 853
 854         orig = data = RREG32(mmHDP_HOST_PATH_CNTL);
 855
 856         if (enable && (adev->cg_flags & AMD_CG_SUPPORT_HDP_MGCG))
 857                 data = REG_SET_FIELD(data, HDP_HOST_PATH_CNTL, CLOCK_GATING_DIS, 0);
 858         else
 859                 data = REG_SET_FIELD(data, HDP_HOST_PATH_CNTL, CLOCK_GATING_DIS, 1);
 860
 861         if (orig != data)
 862                 WREG32(mmHDP_HOST_PATH_CNTL, data);
 863 }
 864
 865 static void gmc_v7_0_enable_hdp_ls(struct amdgpu_device *adev,
 866                                    bool enable)
 867 {
 868         u32 orig, data;
 869
 870         orig = data = RREG32(mmHDP_MEM_POWER_LS);
 871
 872         if (enable && (adev->cg_flags & AMD_CG_SUPPORT_HDP_LS))
 873                 data = REG_SET_FIELD(data, HDP_MEM_POWER_LS, LS_ENABLE, 1);
 874         else
 875                 data = REG_SET_FIELD(data, HDP_MEM_POWER_LS, LS_ENABLE, 0);
 876
 877         if (orig != data)
 878                 WREG32(mmHDP_MEM_POWER_LS, data);
 879 }
 880
 881 static int gmc_v7_0_convert_vram_type(int mc_seq_vram_type)
 882 {
 883         switch (mc_seq_vram_type) {
 884         case MC_SEQ_MISC0__MT__GDDR1:
 885                 return AMDGPU_VRAM_TYPE_GDDR1;
 886         case MC_SEQ_MISC0__MT__DDR2:
 887                 return AMDGPU_VRAM_TYPE_DDR2;
 888         case MC_SEQ_MISC0__MT__GDDR3:
 889                 return AMDGPU_VRAM_TYPE_GDDR3;
 890         case MC_SEQ_MISC0__MT__GDDR4:
 891                 return AMDGPU_VRAM_TYPE_GDDR4;
 892         case MC_SEQ_MISC0__MT__GDDR5:
 893                 return AMDGPU_VRAM_TYPE_GDDR5;
 894         case MC_SEQ_MISC0__MT__HBM:
 895                 return AMDGPU_VRAM_TYPE_HBM;
 896         case MC_SEQ_MISC0__MT__DDR3:
 897                 return AMDGPU_VRAM_TYPE_DDR3;
 898         default:
 899                 return AMDGPU_VRAM_TYPE_UNKNOWN;
 900         }
 901 }
 902
 903 static int gmc_v7_0_early_init(void *handle)
 904 {
 905         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 906
 907         gmc_v7_0_set_gmc_funcs(adev);
 908         gmc_v7_0_set_irq_funcs(adev);
 909
 910         adev->gmc.shared_aperture_start = 0x2000000000000000ULL;
 911         adev->gmc.shared_aperture_end =
 912                 adev->gmc.shared_aperture_start + (4ULL << 30) - 1;
 913         adev->gmc.private_aperture_start =
 914                 adev->gmc.shared_aperture_end + 1;
 915         adev->gmc.private_aperture_end =
 916                 adev->gmc.private_aperture_start + (4ULL << 30) - 1;
 917
 918         return 0;
 919 }
 920
 921 static int gmc_v7_0_late_init(void *handle)
 922 {
 923         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 924
 925         amdgpu_bo_late_init(adev);
 926
 927         if (amdgpu_vm_fault_stop != AMDGPU_VM_FAULT_STOP_ALWAYS)
 928                 return amdgpu_irq_get(adev, &adev->gmc.vm_fault, 0);
 929         else
 930                 return 0;
 931 }
 932
 933 static unsigned gmc_v7_0_get_vbios_fb_size(struct amdgpu_device *adev)
 934 {
 935         u32 d1vga_control = RREG32(mmD1VGA_CONTROL);
 936         unsigned size;
 937
 938         if (REG_GET_FIELD(d1vga_control, D1VGA_CONTROL, D1VGA_MODE_ENABLE)) {
 939                 size = 9 * 1024 * 1024; /* reserve 8MB for vga emulator and 1 MB for FB */
 940         } else {
 941                 u32 viewport = RREG32(mmVIEWPORT_SIZE);
 942                 size = (REG_GET_FIELD(viewport, VIEWPORT_SIZE, VIEWPORT_HEIGHT) *
 943                         REG_GET_FIELD(viewport, VIEWPORT_SIZE, VIEWPORT_WIDTH) *
 944                         4);
 945         }
 946         /* return 0 if the pre-OS buffer uses up most of vram */
 947         if ((adev->gmc.real_vram_size - size) < (8 * 1024 * 1024))
 948                 return 0;
 949         return size;
 950 }
 951
 952 static int gmc_v7_0_sw_init(void *handle)
 953 {
 954         int r;
 955         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 956
 957         adev->num_vmhubs = 1;
 958
 959         if (adev->flags & AMD_IS_APU) {
 960                 adev->gmc.vram_type = AMDGPU_VRAM_TYPE_UNKNOWN;
 961         } else {
 962                 u32 tmp = RREG32(mmMC_SEQ_MISC0);
 963                 tmp &= MC_SEQ_MISC0__MT__MASK;
 964                 adev->gmc.vram_type = gmc_v7_0_convert_vram_type(tmp);
 965         }
 966
 967         r = amdgpu_irq_add_id(adev, AMDGPU_IRQ_CLIENTID_LEGACY, VISLANDS30_IV_SRCID_GFX_PAGE_INV_FAULT, &adev->gmc.vm_fault);
 968         if (r)
 969                 return r;
 970
 971         r = amdgpu_irq_add_id(adev, AMDGPU_IRQ_CLIENTID_LEGACY, VISLANDS30_IV_SRCID_GFX_MEM_PROT_FAULT, &adev->gmc.vm_fault);
 972         if (r)
 973                 return r;
 974
 975         /* Adjust VM size here.
 976          * Currently set to 4GB ((1 << 20) 4k pages).
 977          * Max GPUVM size for cayman and SI is 40 bits.
 978          */
 979         amdgpu_vm_adjust_size(adev, 64, 9, 1, 40);
 980
 981         /* Set the internal MC address mask
 982          * This is the max address of the GPU's
 983          * internal address space.
 984          */
 985         adev->gmc.mc_mask = 0xffffffffffULL; /* 40 bit MC */
 986
 987         r = dma_set_mask_and_coherent(adev->dev, DMA_BIT_MASK(40));
 988         if (r) {
 989                 pr_warn("amdgpu: No suitable DMA available\n");
 990                 return r;
 991         }
 992         adev->need_swiotlb = drm_need_swiotlb(40);
 993
 994         r = gmc_v7_0_init_microcode(adev);
 995         if (r) {
 996                 DRM_ERROR("Failed to load mc firmware!\n");
 997                 return r;
 998         }
 999
1000         r = gmc_v7_0_mc_init(adev);
1001         if (r)
1002                 return r;
1003
1004         adev->gmc.stolen_size = gmc_v7_0_get_vbios_fb_size(adev);
1005
1006         /* Memory manager */
1007         r = amdgpu_bo_init(adev);
1008         if (r)
1009                 return r;
1010
1011         r = gmc_v7_0_gart_init(adev);
1012         if (r)
1013                 return r;
1014
1015         /*
1016          * number of VMs
1017          * VMID 0 is reserved for System
1018          * amdgpu graphics/compute will use VMIDs 1-7
1019          * amdkfd will use VMIDs 8-15
1020          */
1021         adev->vm_manager.id_mgr[0].num_ids = AMDGPU_NUM_OF_VMIDS;
1022         amdgpu_vm_manager_init(adev);
1023
1024         /* base offset of vram pages */
1025         if (adev->flags & AMD_IS_APU) {
1026                 u64 tmp = RREG32(mmMC_VM_FB_OFFSET);
1027
1028                 tmp <<= 22;
1029                 adev->vm_manager.vram_base_offset = tmp;
1030         } else {
1031                 adev->vm_manager.vram_base_offset = 0;
1032         }
1033
1034         adev->gmc.vm_fault_info = kmalloc(sizeof(struct kfd_vm_fault_info),
1035                                         GFP_KERNEL);
1036         if (!adev->gmc.vm_fault_info)
1037                 return -ENOMEM;
1038         atomic_set(&adev->gmc.vm_fault_info_updated, 0);
1039
1040         return 0;
1041 }
1042
1043 static int gmc_v7_0_sw_fini(void *handle)
1044 {
1045         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1046
1047         amdgpu_gem_force_release(adev);
1048         amdgpu_vm_manager_fini(adev);
1049         kfree(adev->gmc.vm_fault_info);
1050         amdgpu_gart_table_vram_free(adev);
1051         amdgpu_bo_fini(adev);
1052         amdgpu_gart_fini(adev);
1053         release_firmware(adev->gmc.fw);
1054         adev->gmc.fw = NULL;
1055
1056         return 0;
1057 }
1058
1059 static int gmc_v7_0_hw_init(void *handle)
1060 {
1061         int r;
1062         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1063
1064         gmc_v7_0_init_golden_registers(adev);
1065
1066         gmc_v7_0_mc_program(adev);
1067
1068         if (!(adev->flags & AMD_IS_APU)) {
1069                 r = gmc_v7_0_mc_load_microcode(adev);
1070                 if (r) {
1071                         DRM_ERROR("Failed to load MC firmware!\n");
1072                         return r;
1073                 }
1074         }
1075
1076         r = gmc_v7_0_gart_enable(adev);
1077         if (r)
1078                 return r;
1079
1080         return r;
1081 }
1082
1083 static int gmc_v7_0_hw_fini(void *handle)
1084 {
1085         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1086
1087         amdgpu_irq_put(adev, &adev->gmc.vm_fault, 0);
1088         gmc_v7_0_gart_disable(adev);
1089
1090         return 0;
1091 }
1092
1093 static int gmc_v7_0_suspend(void *handle)
1094 {
1095         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1096
1097         gmc_v7_0_hw_fini(adev);
1098
1099         return 0;
1100 }
1101
1102 static int gmc_v7_0_resume(void *handle)
1103 {
1104         int r;
1105         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1106
1107         r = gmc_v7_0_hw_init(adev);
1108         if (r)
1109                 return r;
1110
1111         amdgpu_vmid_reset_all(adev);
1112
1113         return 0;
1114 }
1115
1116 static bool gmc_v7_0_is_idle(void *handle)
1117 {
1118         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1119         u32 tmp = RREG32(mmSRBM_STATUS);
1120
1121         if (tmp & (SRBM_STATUS__MCB_BUSY_MASK | SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK |
1122                    SRBM_STATUS__MCC_BUSY_MASK | SRBM_STATUS__MCD_BUSY_MASK | SRBM_STATUS__VMC_BUSY_MASK))
1123                 return false;
1124
1125         return true;
1126 }
1127
1128 static int gmc_v7_0_wait_for_idle(void *handle)
1129 {
1130         unsigned i;
1131         u32 tmp;
1132         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1133
1134         for (i = 0; i < adev->usec_timeout; i++) {
1135                 /* read MC_STATUS */
1136                 tmp = RREG32(mmSRBM_STATUS) & (SRBM_STATUS__MCB_BUSY_MASK |
1137                                                SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK |
1138                                                SRBM_STATUS__MCC_BUSY_MASK |
1139                                                SRBM_STATUS__MCD_BUSY_MASK |
1140                                                SRBM_STATUS__VMC_BUSY_MASK);
1141                 if (!tmp)
1142                         return 0;
1143                 udelay(1);
1144         }
1145         return -ETIMEDOUT;
1146
1147 }
1148
1149 static int gmc_v7_0_soft_reset(void *handle)
1150 {
1151         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1152         u32 srbm_soft_reset = 0;
1153         u32 tmp = RREG32(mmSRBM_STATUS);
1154
1155         if (tmp & SRBM_STATUS__VMC_BUSY_MASK)
1156                 srbm_soft_reset = REG_SET_FIELD(srbm_soft_reset,
1157                                                 SRBM_SOFT_RESET, SOFT_RESET_VMC, 1);
1158
1159         if (tmp & (SRBM_STATUS__MCB_BUSY_MASK | SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK |
1160                    SRBM_STATUS__MCC_BUSY_MASK | SRBM_STATUS__MCD_BUSY_MASK)) {
1161                 if (!(adev->flags & AMD_IS_APU))
1162                         srbm_soft_reset = REG_SET_FIELD(srbm_soft_reset,
1163                                                         SRBM_SOFT_RESET, SOFT_RESET_MC, 1);
1164         }
1165
1166         if (srbm_soft_reset) {
1167                 gmc_v7_0_mc_stop(adev);
1168                 if (gmc_v7_0_wait_for_idle((void *)adev)) {
1169                         dev_warn(adev->dev, "Wait for GMC idle timed out !\n");
1170                 }
1171
1172
1173                 tmp = RREG32(mmSRBM_SOFT_RESET);
1174                 tmp |= srbm_soft_reset;
1175                 dev_info(adev->dev, "SRBM_SOFT_RESET=0x%08X\n", tmp);
1176                 WREG32(mmSRBM_SOFT_RESET, tmp);
1177                 tmp = RREG32(mmSRBM_SOFT_RESET);
1178
1179                 udelay(50);
1180
1181                 tmp &= ~srbm_soft_reset;
1182                 WREG32(mmSRBM_SOFT_RESET, tmp);
1183                 tmp = RREG32(mmSRBM_SOFT_RESET);
1184
1185                 /* Wait a little for things to settle down */
1186                 udelay(50);
1187
1188                 gmc_v7_0_mc_resume(adev);
1189                 udelay(50);
1190         }
1191
1192         return 0;
1193 }
1194
1195 static int gmc_v7_0_vm_fault_interrupt_state(struct amdgpu_device *adev,
1196                                              struct amdgpu_irq_src *src,
1197                                              unsigned type,
1198                                              enum amdgpu_interrupt_state state)
1199 {
1200         u32 tmp;
1201         u32 bits = (VM_CONTEXT1_CNTL__RANGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1202                     VM_CONTEXT1_CNTL__DUMMY_PAGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1203                     VM_CONTEXT1_CNTL__PDE0_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1204                     VM_CONTEXT1_CNTL__VALID_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1205                     VM_CONTEXT1_CNTL__READ_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1206                     VM_CONTEXT1_CNTL__WRITE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK);
1207
1208         switch (state) {
1209         case AMDGPU_IRQ_STATE_DISABLE:
1210                 /* system context */
1211                 tmp = RREG32(mmVM_CONTEXT0_CNTL);
1212                 tmp &= ~bits;
1213                 WREG32(mmVM_CONTEXT0_CNTL, tmp);
1214                 /* VMs */
1215                 tmp = RREG32(mmVM_CONTEXT1_CNTL);
1216                 tmp &= ~bits;
1217                 WREG32(mmVM_CONTEXT1_CNTL, tmp);
1218                 break;
1219         case AMDGPU_IRQ_STATE_ENABLE:
1220                 /* system context */
1221                 tmp = RREG32(mmVM_CONTEXT0_CNTL);
1222                 tmp |= bits;
1223                 WREG32(mmVM_CONTEXT0_CNTL, tmp);
1224                 /* VMs */
1225                 tmp = RREG32(mmVM_CONTEXT1_CNTL);
1226                 tmp |= bits;
1227                 WREG32(mmVM_CONTEXT1_CNTL, tmp);
1228                 break;
1229         default:
1230                 break;
1231         }
1232
1233         return 0;
1234 }
1235
1236 static int gmc_v7_0_process_interrupt(struct amdgpu_device *adev,
1237                                       struct amdgpu_irq_src *source,
1238                                       struct amdgpu_iv_entry *entry)
1239 {
1240         u32 addr, status, mc_client, vmid;
1241
1242         addr = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_ADDR);
1243         status = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_STATUS);
1244         mc_client = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_MCCLIENT);
1245         /* reset addr and status */
1246         WREG32_P(mmVM_CONTEXT1_CNTL2, 1, ~1);
1247
1248         if (!addr && !status)
1249                 return 0;
1250
1251         if (amdgpu_vm_fault_stop == AMDGPU_VM_FAULT_STOP_FIRST)
1252                 gmc_v7_0_set_fault_enable_default(adev, false);
1253
1254         if (printk_ratelimit()) {
1255                 dev_err(adev->dev, "GPU fault detected: %d 0x%08x\n",
1256                         entry->src_id, entry->src_data[0]);
1257                 dev_err(adev->dev, "  VM_CONTEXT1_PROTECTION_FAULT_ADDR   0x%08X\n",
1258                         addr);
1259                 dev_err(adev->dev, "  VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x%08X\n",
1260                         status);
1261                 gmc_v7_0_vm_decode_fault(adev, status, addr, mc_client,
1262                                          entry->pasid);
1263         }
1264
1265         vmid = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS,
1266                              VMID);
1267         if (amdgpu_amdkfd_is_kfd_vmid(adev, vmid)
1268                 && !atomic_read(&adev->gmc.vm_fault_info_updated)) {
1269                 struct kfd_vm_fault_info *info = adev->gmc.vm_fault_info;
1270                 u32 protections = REG_GET_FIELD(status,
1271                                         VM_CONTEXT1_PROTECTION_FAULT_STATUS,
1272                                         PROTECTIONS);
1273
1274                 info->vmid = vmid;
1275                 info->mc_id = REG_GET_FIELD(status,
1276                                             VM_CONTEXT1_PROTECTION_FAULT_STATUS,
1277                                             MEMORY_CLIENT_ID);
1278                 info->status = status;
1279                 info->page_addr = addr;
1280                 info->prot_valid = protections & 0x7 ? true : false;
1281                 info->prot_read = protections & 0x8 ? true : false;
1282                 info->prot_write = protections & 0x10 ? true : false;
1283                 info->prot_exec = protections & 0x20 ? true : false;
1284                 mb();
1285                 atomic_set(&adev->gmc.vm_fault_info_updated, 1);
1286         }
1287
1288         return 0;
1289 }
1290
1291 static int gmc_v7_0_set_clockgating_state(void *handle,
1292                                           enum amd_clockgating_state state)
1293 {
1294         bool gate = false;
1295         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1296
1297         if (state == AMD_CG_STATE_GATE)
1298                 gate = true;
1299
1300         if (!(adev->flags & AMD_IS_APU)) {
1301                 gmc_v7_0_enable_mc_mgcg(adev, gate);
1302                 gmc_v7_0_enable_mc_ls(adev, gate);
1303         }
1304         gmc_v7_0_enable_bif_mgls(adev, gate);
1305         gmc_v7_0_enable_hdp_mgcg(adev, gate);
1306         gmc_v7_0_enable_hdp_ls(adev, gate);
1307
1308         return 0;
1309 }
1310
1311 static int gmc_v7_0_set_powergating_state(void *handle,
1312                                           enum amd_powergating_state state)
1313 {
1314         return 0;
1315 }
1316
1317 static const struct amd_ip_funcs gmc_v7_0_ip_funcs = {
1318         .name = "gmc_v7_0",
1319         .early_init = gmc_v7_0_early_init,
1320         .late_init = gmc_v7_0_late_init,
1321         .sw_init = gmc_v7_0_sw_init,
1322         .sw_fini = gmc_v7_0_sw_fini,
1323         .hw_init = gmc_v7_0_hw_init,
1324         .hw_fini = gmc_v7_0_hw_fini,
1325         .suspend = gmc_v7_0_suspend,
1326         .resume = gmc_v7_0_resume,
1327         .is_idle = gmc_v7_0_is_idle,
1328         .wait_for_idle = gmc_v7_0_wait_for_idle,
1329         .soft_reset = gmc_v7_0_soft_reset,
1330         .set_clockgating_state = gmc_v7_0_set_clockgating_state,
1331         .set_powergating_state = gmc_v7_0_set_powergating_state,
1332 };
1333
1334 static const struct amdgpu_gmc_funcs gmc_v7_0_gmc_funcs = {
1335         .flush_gpu_tlb = gmc_v7_0_flush_gpu_tlb,
1336         .emit_flush_gpu_tlb = gmc_v7_0_emit_flush_gpu_tlb,
1337         .emit_pasid_mapping = gmc_v7_0_emit_pasid_mapping,
1338         .set_prt = gmc_v7_0_set_prt,
1339         .get_vm_pde = gmc_v7_0_get_vm_pde,
1340         .get_vm_pte = gmc_v7_0_get_vm_pte
1341 };
1342
1343 static const struct amdgpu_irq_src_funcs gmc_v7_0_irq_funcs = {
1344         .set = gmc_v7_0_vm_fault_interrupt_state,
1345         .process = gmc_v7_0_process_interrupt,
1346 };
1347
1348 static void gmc_v7_0_set_gmc_funcs(struct amdgpu_device *adev)
1349 {
1350         adev->gmc.gmc_funcs = &gmc_v7_0_gmc_funcs;
1351 }
1352
1353 static void gmc_v7_0_set_irq_funcs(struct amdgpu_device *adev)
1354 {
1355         adev->gmc.vm_fault.num_types = 1;
1356         adev->gmc.vm_fault.funcs = &gmc_v7_0_irq_funcs;
1357 }
1358
1359 const struct amdgpu_ip_block_version gmc_v7_0_ip_block =
1360 {
1361         .type = AMD_IP_BLOCK_TYPE_GMC,
1362         .major = 7,
1363         .minor = 0,
1364         .rev = 0,
1365         .funcs = &gmc_v7_0_ip_funcs,
1366 };
1367
1368 const struct amdgpu_ip_block_version gmc_v7_4_ip_block =
1369 {
1370         .type = AMD_IP_BLOCK_TYPE_GMC,
1371         .major = 7,
1372         .minor = 4,
1373         .rev = 0,
1374         .funcs = &gmc_v7_0_ip_funcs,
1375 };