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 #include <linux/firmware.h>
  24 #include <drm/drmP.h>
  25 #include <drm/drm_cache.h>
  26 #include "amdgpu.h"
  27 #include "cikd.h"
  28 #include "cik.h"
  29 #include "gmc_v7_0.h"
  30 #include "amdgpu_ucode.h"
  31
  32 #include "bif/bif_4_1_d.h"
  33 #include "bif/bif_4_1_sh_mask.h"
  34
  35 #include "gmc/gmc_7_1_d.h"
  36 #include "gmc/gmc_7_1_sh_mask.h"
  37
  38 #include "oss/oss_2_0_d.h"
  39 #include "oss/oss_2_0_sh_mask.h"
  40
  41 #include "dce/dce_8_0_d.h"
  42 #include "dce/dce_8_0_sh_mask.h"
  43
  44 #include "amdgpu_atombios.h"
  45
  46 static void gmc_v7_0_set_gmc_funcs(struct amdgpu_device *adev);
  47 static void gmc_v7_0_set_irq_funcs(struct amdgpu_device *adev);
  48 static int gmc_v7_0_wait_for_idle(void *handle);
  49
  50 MODULE_FIRMWARE("radeon/bonaire_mc.bin");
  51 MODULE_FIRMWARE("radeon/hawaii_mc.bin");
  52 MODULE_FIRMWARE("amdgpu/topaz_mc.bin");
  53
  54 static const u32 golden_settings_iceland_a11[] =
  55 {
  56         mmVM_PRT_APERTURE0_LOW_ADDR, 0x0fffffff, 0x0fffffff,
  57         mmVM_PRT_APERTURE1_LOW_ADDR, 0x0fffffff, 0x0fffffff,
  58         mmVM_PRT_APERTURE2_LOW_ADDR, 0x0fffffff, 0x0fffffff,
  59         mmVM_PRT_APERTURE3_LOW_ADDR, 0x0fffffff, 0x0fffffff
  60 };
  61
  62 static const u32 iceland_mgcg_cgcg_init[] =
  63 {
  64         mmMC_MEM_POWER_LS, 0xffffffff, 0x00000104
  65 };
  66
  67 static void gmc_v7_0_init_golden_registers(struct amdgpu_device *adev)
  68 {
  69         switch (adev->asic_type) {
  70         case CHIP_TOPAZ:
  71                 amdgpu_device_program_register_sequence(adev,
  72                                                         iceland_mgcg_cgcg_init,
  73                                                         ARRAY_SIZE(iceland_mgcg_cgcg_init));
  74                 amdgpu_device_program_register_sequence(adev,
  75                                                         golden_settings_iceland_a11,
  76                                                         ARRAY_SIZE(golden_settings_iceland_a11));
  77                 break;
  78         default:
  79                 break;
  80         }
  81 }
  82
  83 static void gmc_v7_0_mc_stop(struct amdgpu_device *adev)
  84 {
  85         u32 blackout;
  86
  87         gmc_v7_0_wait_for_idle((void *)adev);
  88
  89         blackout = RREG32(mmMC_SHARED_BLACKOUT_CNTL);
  90         if (REG_GET_FIELD(blackout, MC_SHARED_BLACKOUT_CNTL, BLACKOUT_MODE) != 1) {
  91                 /* Block CPU access */
  92                 WREG32(mmBIF_FB_EN, 0);
  93                 /* blackout the MC */
  94                 blackout = REG_SET_FIELD(blackout,
  95                                          MC_SHARED_BLACKOUT_CNTL, BLACKOUT_MODE, 0);
  96                 WREG32(mmMC_SHARED_BLACKOUT_CNTL, blackout | 1);
  97         }
  98         /* wait for the MC to settle */
  99         udelay(100);
 100 }
 101
 102 static void gmc_v7_0_mc_resume(struct amdgpu_device *adev)
 103 {
 104         u32 tmp;
 105
 106         /* unblackout the MC */
 107         tmp = RREG32(mmMC_SHARED_BLACKOUT_CNTL);
 108         tmp = REG_SET_FIELD(tmp, MC_SHARED_BLACKOUT_CNTL, BLACKOUT_MODE, 0);
 109         WREG32(mmMC_SHARED_BLACKOUT_CNTL, tmp);
 110         /* allow CPU access */
 111         tmp = REG_SET_FIELD(0, BIF_FB_EN, FB_READ_EN, 1);
 112         tmp = REG_SET_FIELD(tmp, BIF_FB_EN, FB_WRITE_EN, 1);
 113         WREG32(mmBIF_FB_EN, tmp);
 114 }
 115
 116 /**
 117  * gmc_v7_0_init_microcode - load ucode images from disk
 118  *
 119  * @adev: amdgpu_device pointer
 120  *
 121  * Use the firmware interface to load the ucode images into
 122  * the driver (not loaded into hw).
 123  * Returns 0 on success, error on failure.
 124  */
 125 static int gmc_v7_0_init_microcode(struct amdgpu_device *adev)
 126 {
 127         const char *chip_name;
 128         char fw_name[30];
 129         int err;
 130
 131         DRM_DEBUG("\n");
 132
 133         switch (adev->asic_type) {
 134         case CHIP_BONAIRE:
 135                 chip_name = "bonaire";
 136                 break;
 137         case CHIP_HAWAII:
 138                 chip_name = "hawaii";
 139                 break;
 140         case CHIP_TOPAZ:
 141                 chip_name = "topaz";
 142                 break;
 143         case CHIP_KAVERI:
 144         case CHIP_KABINI:
 145         case CHIP_MULLINS:
 146                 return 0;
 147         default: BUG();
 148         }
 149
 150         if (adev->asic_type == CHIP_TOPAZ)
 151                 snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_mc.bin", chip_name);
 152         else
 153                 snprintf(fw_name, sizeof(fw_name), "radeon/%s_mc.bin", chip_name);
 154
 155         err = request_firmware(&adev->gmc.fw, fw_name, adev->dev);
 156         if (err)
 157                 goto out;
 158         err = amdgpu_ucode_validate(adev->gmc.fw);
 159
 160 out:
 161         if (err) {
 162                 pr_err("cik_mc: Failed to load firmware \"%s\"\n", fw_name);
 163                 release_firmware(adev->gmc.fw);
 164                 adev->gmc.fw = NULL;
 165         }
 166         return err;
 167 }
 168
 169 /**
 170  * gmc_v7_0_mc_load_microcode - load MC ucode into the hw
 171  *
 172  * @adev: amdgpu_device pointer
 173  *
 174  * Load the GDDR MC ucode into the hw (CIK).
 175  * Returns 0 on success, error on failure.
 176  */
 177 static int gmc_v7_0_mc_load_microcode(struct amdgpu_device *adev)
 178 {
 179         const struct mc_firmware_header_v1_0 *hdr;
 180         const __le32 *fw_data = NULL;
 181         const __le32 *io_mc_regs = NULL;
 182         u32 running;
 183         int i, ucode_size, regs_size;
 184
 185         if (!adev->gmc.fw)
 186                 return -EINVAL;
 187
 188         hdr = (const struct mc_firmware_header_v1_0 *)adev->gmc.fw->data;
 189         amdgpu_ucode_print_mc_hdr(&hdr->header);
 190
 191         adev->gmc.fw_version = le32_to_cpu(hdr->header.ucode_version);
 192         regs_size = le32_to_cpu(hdr->io_debug_size_bytes) / (4 * 2);
 193         io_mc_regs = (const __le32 *)
 194                 (adev->gmc.fw->data + le32_to_cpu(hdr->io_debug_array_offset_bytes));
 195         ucode_size = le32_to_cpu(hdr->header.ucode_size_bytes) / 4;
 196         fw_data = (const __le32 *)
 197                 (adev->gmc.fw->data + le32_to_cpu(hdr->header.ucode_array_offset_bytes));
 198
 199         running = REG_GET_FIELD(RREG32(mmMC_SEQ_SUP_CNTL), MC_SEQ_SUP_CNTL, RUN);
 200
 201         if (running == 0) {
 202                 /* reset the engine and set to writable */
 203                 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000008);
 204                 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000010);
 205
 206                 /* load mc io regs */
 207                 for (i = 0; i < regs_size; i++) {
 208                         WREG32(mmMC_SEQ_IO_DEBUG_INDEX, le32_to_cpup(io_mc_regs++));
 209                         WREG32(mmMC_SEQ_IO_DEBUG_DATA, le32_to_cpup(io_mc_regs++));
 210                 }
 211                 /* load the MC ucode */
 212                 for (i = 0; i < ucode_size; i++)
 213                         WREG32(mmMC_SEQ_SUP_PGM, le32_to_cpup(fw_data++));
 214
 215                 /* put the engine back into the active state */
 216                 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000008);
 217                 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000004);
 218                 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000001);
 219
 220                 /* wait for training to complete */
 221                 for (i = 0; i < adev->usec_timeout; i++) {
 222                         if (REG_GET_FIELD(RREG32(mmMC_SEQ_TRAIN_WAKEUP_CNTL),
 223                                           MC_SEQ_TRAIN_WAKEUP_CNTL, TRAIN_DONE_D0))
 224                                 break;
 225                         udelay(1);
 226                 }
 227                 for (i = 0; i < adev->usec_timeout; i++) {
 228                         if (REG_GET_FIELD(RREG32(mmMC_SEQ_TRAIN_WAKEUP_CNTL),
 229                                           MC_SEQ_TRAIN_WAKEUP_CNTL, TRAIN_DONE_D1))
 230                                 break;
 231                         udelay(1);
 232                 }
 233         }
 234
 235         return 0;
 236 }
 237
 238 static void gmc_v7_0_vram_gtt_location(struct amdgpu_device *adev,
 239                                        struct amdgpu_gmc *mc)
 240 {
 241         u64 base = RREG32(mmMC_VM_FB_LOCATION) & 0xFFFF;
 242         base <<= 24;
 243
 244         amdgpu_device_vram_location(adev, &adev->gmc, base);
 245         amdgpu_device_gart_location(adev, mc);
 246 }
 247
 248 /**
 249  * gmc_v7_0_mc_program - program the GPU memory controller
 250  *
 251  * @adev: amdgpu_device pointer
 252  *
 253  * Set the location of vram, gart, and AGP in the GPU's
 254  * physical address space (CIK).
 255  */
 256 static void gmc_v7_0_mc_program(struct amdgpu_device *adev)
 257 {
 258         u32 tmp;
 259         int i, j;
 260
 261         /* Initialize HDP */
 262         for (i = 0, j = 0; i < 32; i++, j += 0x6) {
 263                 WREG32((0xb05 + j), 0x00000000);
 264                 WREG32((0xb06 + j), 0x00000000);
 265                 WREG32((0xb07 + j), 0x00000000);
 266                 WREG32((0xb08 + j), 0x00000000);
 267                 WREG32((0xb09 + j), 0x00000000);
 268         }
 269         WREG32(mmHDP_REG_COHERENCY_FLUSH_CNTL, 0);
 270
 271         if (gmc_v7_0_wait_for_idle((void *)adev)) {
 272                 dev_warn(adev->dev, "Wait for MC idle timedout !\n");
 273         }
 274         if (adev->mode_info.num_crtc) {
 275                 /* Lockout access through VGA aperture*/
 276                 tmp = RREG32(mmVGA_HDP_CONTROL);
 277                 tmp = REG_SET_FIELD(tmp, VGA_HDP_CONTROL, VGA_MEMORY_DISABLE, 1);
 278                 WREG32(mmVGA_HDP_CONTROL, tmp);
 279
 280                 /* disable VGA render */
 281                 tmp = RREG32(mmVGA_RENDER_CONTROL);
 282                 tmp = REG_SET_FIELD(tmp, VGA_RENDER_CONTROL, VGA_VSTATUS_CNTL, 0);
 283                 WREG32(mmVGA_RENDER_CONTROL, tmp);
 284         }
 285         /* Update configuration */
 286         WREG32(mmMC_VM_SYSTEM_APERTURE_LOW_ADDR,
 287                adev->gmc.vram_start >> 12);
 288         WREG32(mmMC_VM_SYSTEM_APERTURE_HIGH_ADDR,
 289                adev->gmc.vram_end >> 12);
 290         WREG32(mmMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR,
 291                adev->vram_scratch.gpu_addr >> 12);
 292         WREG32(mmMC_VM_AGP_BASE, 0);
 293         WREG32(mmMC_VM_AGP_TOP, 0x0FFFFFFF);
 294         WREG32(mmMC_VM_AGP_BOT, 0x0FFFFFFF);
 295         if (gmc_v7_0_wait_for_idle((void *)adev)) {
 296                 dev_warn(adev->dev, "Wait for MC idle timedout !\n");
 297         }
 298
 299         WREG32(mmBIF_FB_EN, BIF_FB_EN__FB_READ_EN_MASK | BIF_FB_EN__FB_WRITE_EN_MASK);
 300
 301         tmp = RREG32(mmHDP_MISC_CNTL);
 302         tmp = REG_SET_FIELD(tmp, HDP_MISC_CNTL, FLUSH_INVALIDATE_CACHE, 0);
 303         WREG32(mmHDP_MISC_CNTL, tmp);
 304
 305         tmp = RREG32(mmHDP_HOST_PATH_CNTL);
 306         WREG32(mmHDP_HOST_PATH_CNTL, tmp);
 307 }
 308
 309 /**
 310  * gmc_v7_0_mc_init - initialize the memory controller driver params
 311  *
 312  * @adev: amdgpu_device pointer
 313  *
 314  * Look up the amount of vram, vram width, and decide how to place
 315  * vram and gart within the GPU's physical address space (CIK).
 316  * Returns 0 for success.
 317  */
 318 static int gmc_v7_0_mc_init(struct amdgpu_device *adev)
 319 {
 320         int r;
 321
 322         adev->gmc.vram_width = amdgpu_atombios_get_vram_width(adev);
 323         if (!adev->gmc.vram_width) {
 324                 u32 tmp;
 325                 int chansize, numchan;
 326
 327                 /* Get VRAM informations */
 328                 tmp = RREG32(mmMC_ARB_RAMCFG);
 329                 if (REG_GET_FIELD(tmp, MC_ARB_RAMCFG, CHANSIZE)) {
 330                         chansize = 64;
 331                 } else {
 332                         chansize = 32;
 333                 }
 334                 tmp = RREG32(mmMC_SHARED_CHMAP);
 335                 switch (REG_GET_FIELD(tmp, MC_SHARED_CHMAP, NOOFCHAN)) {
 336                 case 0:
 337                 default:
 338                         numchan = 1;
 339                         break;
 340                 case 1:
 341                         numchan = 2;
 342                         break;
 343                 case 2:
 344                         numchan = 4;
 345                         break;
 346                 case 3:
 347                         numchan = 8;
 348                         break;
 349                 case 4:
 350                         numchan = 3;
 351                         break;
 352                 case 5:
 353                         numchan = 6;
 354                         break;
 355                 case 6:
 356                         numchan = 10;
 357                         break;
 358                 case 7:
 359                         numchan = 12;
 360                         break;
 361                 case 8:
 362                         numchan = 16;
 363                         break;
 364                 }
 365                 adev->gmc.vram_width = numchan * chansize;
 366         }
 367         /* size in MB on si */
 368         adev->gmc.mc_vram_size = RREG32(mmCONFIG_MEMSIZE) * 1024ULL * 1024ULL;
 369         adev->gmc.real_vram_size = RREG32(mmCONFIG_MEMSIZE) * 1024ULL * 1024ULL;
 370
 371         if (!(adev->flags & AMD_IS_APU)) {
 372                 r = amdgpu_device_resize_fb_bar(adev);
 373                 if (r)
 374                         return r;
 375         }
 376         adev->gmc.aper_base = pci_resource_start(adev->pdev, 0);
 377         adev->gmc.aper_size = pci_resource_len(adev->pdev, 0);
 378
 379 #ifdef CONFIG_X86_64
 380         if (adev->flags & AMD_IS_APU) {
 381                 adev->gmc.aper_base = ((u64)RREG32(mmMC_VM_FB_OFFSET)) << 22;
 382                 adev->gmc.aper_size = adev->gmc.real_vram_size;
 383         }
 384 #endif
 385
 386         /* In case the PCI BAR is larger than the actual amount of vram */
 387         adev->gmc.visible_vram_size = adev->gmc.aper_size;
 388         if (adev->gmc.visible_vram_size > adev->gmc.real_vram_size)
 389                 adev->gmc.visible_vram_size = adev->gmc.real_vram_size;
 390
 391         /* set the gart size */
 392         if (amdgpu_gart_size == -1) {
 393                 switch (adev->asic_type) {
 394                 case CHIP_TOPAZ:     /* no MM engines */
 395                 default:
 396                         adev->gmc.gart_size = 256ULL << 20;
 397                         break;
 398 #ifdef CONFIG_DRM_AMDGPU_CIK
 399                 case CHIP_BONAIRE: /* UVD, VCE do not support GPUVM */
 400                 case CHIP_HAWAII:  /* UVD, VCE do not support GPUVM */
 401                 case CHIP_KAVERI:  /* UVD, VCE do not support GPUVM */
 402                 case CHIP_KABINI:  /* UVD, VCE do not support GPUVM */
 403                 case CHIP_MULLINS: /* UVD, VCE do not support GPUVM */
 404                         adev->gmc.gart_size = 1024ULL << 20;
 405                         break;
 406 #endif
 407                 }
 408         } else {
 409                 adev->gmc.gart_size = (u64)amdgpu_gart_size << 20;
 410         }
 411
 412         gmc_v7_0_vram_gtt_location(adev, &adev->gmc);
 413
 414         return 0;
 415 }
 416
 417 /*
 418  * GART
 419  * VMID 0 is the physical GPU addresses as used by the kernel.
 420  * VMIDs 1-15 are used for userspace clients and are handled
 421  * by the amdgpu vm/hsa code.
 422  */
 423
 424 /**
 425  * gmc_v7_0_flush_gpu_tlb - gart tlb flush callback
 426  *
 427  * @adev: amdgpu_device pointer
 428  * @vmid: vm instance to flush
 429  *
 430  * Flush the TLB for the requested page table (CIK).
 431  */
 432 static void gmc_v7_0_flush_gpu_tlb(struct amdgpu_device *adev, uint32_t vmid)
 433 {
 434         /* bits 0-15 are the VM contexts0-15 */
 435         WREG32(mmVM_INVALIDATE_REQUEST, 1 << vmid);
 436 }
 437
 438 static uint64_t gmc_v7_0_emit_flush_gpu_tlb(struct amdgpu_ring *ring,
 439                                             unsigned vmid, uint64_t pd_addr)
 440 {
 441         uint32_t reg;
 442
 443         if (vmid < 8)
 444                 reg = mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR + vmid;
 445         else
 446                 reg = mmVM_CONTEXT8_PAGE_TABLE_BASE_ADDR + vmid - 8;
 447         amdgpu_ring_emit_wreg(ring, reg, pd_addr >> 12);
 448
 449         /* bits 0-15 are the VM contexts0-15 */
 450         amdgpu_ring_emit_wreg(ring, mmVM_INVALIDATE_REQUEST, 1 << vmid);
 451
 452         return pd_addr;
 453 }
 454
 455 static void gmc_v7_0_emit_pasid_mapping(struct amdgpu_ring *ring, unsigned vmid,
 456                                         unsigned pasid)
 457 {
 458         amdgpu_ring_emit_wreg(ring, mmIH_VMID_0_LUT + vmid, pasid);
 459 }
 460
 461 /**
 462  * gmc_v7_0_set_pte_pde - update the page tables using MMIO
 463  *
 464  * @adev: amdgpu_device pointer
 465  * @cpu_pt_addr: cpu address of the page table
 466  * @gpu_page_idx: entry in the page table to update
 467  * @addr: dst addr to write into pte/pde
 468  * @flags: access flags
 469  *
 470  * Update the page tables using the CPU.
 471  */
 472 static int gmc_v7_0_set_pte_pde(struct amdgpu_device *adev, void *cpu_pt_addr,
 473                                  uint32_t gpu_page_idx, uint64_t addr,
 474                                  uint64_t flags)
 475 {
 476         void __iomem *ptr = (void *)cpu_pt_addr;
 477         uint64_t value;
 478
 479         value = addr & 0xFFFFFFFFFFFFF000ULL;
 480         value |= flags;
 481         writeq(value, ptr + (gpu_page_idx * 8));
 482
 483         return 0;
 484 }
 485
 486 static uint64_t gmc_v7_0_get_vm_pte_flags(struct amdgpu_device *adev,
 487                                           uint32_t flags)
 488 {
 489         uint64_t pte_flag = 0;
 490
 491         if (flags & AMDGPU_VM_PAGE_READABLE)
 492                 pte_flag |= AMDGPU_PTE_READABLE;
 493         if (flags & AMDGPU_VM_PAGE_WRITEABLE)
 494                 pte_flag |= AMDGPU_PTE_WRITEABLE;
 495         if (flags & AMDGPU_VM_PAGE_PRT)
 496                 pte_flag |= AMDGPU_PTE_PRT;
 497
 498         return pte_flag;
 499 }
 500
 501 static void gmc_v7_0_get_vm_pde(struct amdgpu_device *adev, int level,
 502                                 uint64_t *addr, uint64_t *flags)
 503 {
 504         BUG_ON(*addr & 0xFFFFFF0000000FFFULL);
 505 }
 506
 507 /**
 508  * gmc_v8_0_set_fault_enable_default - update VM fault handling
 509  *
 510  * @adev: amdgpu_device pointer
 511  * @value: true redirects VM faults to the default page
 512  */
 513 static void gmc_v7_0_set_fault_enable_default(struct amdgpu_device *adev,
 514                                               bool value)
 515 {
 516         u32 tmp;
 517
 518         tmp = RREG32(mmVM_CONTEXT1_CNTL);
 519         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 520                             RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 521         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 522                             DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 523         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 524                             PDE0_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 525         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 526                             VALID_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 527         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 528                             READ_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 529         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 530                             WRITE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 531         WREG32(mmVM_CONTEXT1_CNTL, tmp);
 532 }
 533
 534 /**
 535  * gmc_v7_0_set_prt - set PRT VM fault
 536  *
 537  * @adev: amdgpu_device pointer
 538  * @enable: enable/disable VM fault handling for PRT
 539  */
 540 static void gmc_v7_0_set_prt(struct amdgpu_device *adev, bool enable)
 541 {
 542         uint32_t tmp;
 543
 544         if (enable && !adev->gmc.prt_warning) {
 545                 dev_warn(adev->dev, "Disabling VM faults because of PRT request!\n");
 546                 adev->gmc.prt_warning = true;
 547         }
 548
 549         tmp = RREG32(mmVM_PRT_CNTL);
 550         tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
 551                             CB_DISABLE_READ_FAULT_ON_UNMAPPED_ACCESS, enable);
 552         tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
 553                             CB_DISABLE_WRITE_FAULT_ON_UNMAPPED_ACCESS, enable);
 554         tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
 555                             TC_DISABLE_READ_FAULT_ON_UNMAPPED_ACCESS, enable);
 556         tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
 557                             TC_DISABLE_WRITE_FAULT_ON_UNMAPPED_ACCESS, enable);
 558         tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
 559                             L2_CACHE_STORE_INVALID_ENTRIES, enable);
 560         tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
 561                             L1_TLB_STORE_INVALID_ENTRIES, enable);
 562         tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
 563                             MASK_PDE0_FAULT, enable);
 564         WREG32(mmVM_PRT_CNTL, tmp);
 565
 566         if (enable) {
 567                 uint32_t low = AMDGPU_VA_RESERVED_SIZE >> AMDGPU_GPU_PAGE_SHIFT;
 568                 uint32_t high = adev->vm_manager.max_pfn -
 569                         (AMDGPU_VA_RESERVED_SIZE >> AMDGPU_GPU_PAGE_SHIFT);
 570
 571                 WREG32(mmVM_PRT_APERTURE0_LOW_ADDR, low);
 572                 WREG32(mmVM_PRT_APERTURE1_LOW_ADDR, low);
 573                 WREG32(mmVM_PRT_APERTURE2_LOW_ADDR, low);
 574                 WREG32(mmVM_PRT_APERTURE3_LOW_ADDR, low);
 575                 WREG32(mmVM_PRT_APERTURE0_HIGH_ADDR, high);
 576                 WREG32(mmVM_PRT_APERTURE1_HIGH_ADDR, high);
 577                 WREG32(mmVM_PRT_APERTURE2_HIGH_ADDR, high);
 578                 WREG32(mmVM_PRT_APERTURE3_HIGH_ADDR, high);
 579         } else {
 580                 WREG32(mmVM_PRT_APERTURE0_LOW_ADDR, 0xfffffff);
 581                 WREG32(mmVM_PRT_APERTURE1_LOW_ADDR, 0xfffffff);
 582                 WREG32(mmVM_PRT_APERTURE2_LOW_ADDR, 0xfffffff);
 583                 WREG32(mmVM_PRT_APERTURE3_LOW_ADDR, 0xfffffff);
 584                 WREG32(mmVM_PRT_APERTURE0_HIGH_ADDR, 0x0);
 585                 WREG32(mmVM_PRT_APERTURE1_HIGH_ADDR, 0x0);
 586                 WREG32(mmVM_PRT_APERTURE2_HIGH_ADDR, 0x0);
 587                 WREG32(mmVM_PRT_APERTURE3_HIGH_ADDR, 0x0);
 588         }
 589 }
 590
 591 /**
 592  * gmc_v7_0_gart_enable - gart enable
 593  *
 594  * @adev: amdgpu_device pointer
 595  *
 596  * This sets up the TLBs, programs the page tables for VMID0,
 597  * sets up the hw for VMIDs 1-15 which are allocated on
 598  * demand, and sets up the global locations for the LDS, GDS,
 599  * and GPUVM for FSA64 clients (CIK).
 600  * Returns 0 for success, errors for failure.
 601  */
 602 static int gmc_v7_0_gart_enable(struct amdgpu_device *adev)
 603 {
 604         int r, i;
 605         u32 tmp, field;
 606
 607         if (adev->gart.robj == NULL) {
 608                 dev_err(adev->dev, "No VRAM object for PCIE GART.\n");
 609                 return -EINVAL;
 610         }
 611         r = amdgpu_gart_table_vram_pin(adev);
 612         if (r)
 613                 return r;
 614         /* Setup TLB control */
 615         tmp = RREG32(mmMC_VM_MX_L1_TLB_CNTL);
 616         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 1);
 617         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_FRAGMENT_PROCESSING, 1);
 618         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, SYSTEM_ACCESS_MODE, 3);
 619         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_ADVANCED_DRIVER_MODEL, 1);
 620         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, SYSTEM_APERTURE_UNMAPPED_ACCESS, 0);
 621         WREG32(mmMC_VM_MX_L1_TLB_CNTL, tmp);
 622         /* Setup L2 cache */
 623         tmp = RREG32(mmVM_L2_CNTL);
 624         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_CACHE, 1);
 625         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_FRAGMENT_PROCESSING, 1);
 626         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_PTE_CACHE_LRU_UPDATE_BY_WRITE, 1);
 627         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_PDE0_CACHE_LRU_UPDATE_BY_WRITE, 1);
 628         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, EFFECTIVE_L2_QUEUE_SIZE, 7);
 629         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, CONTEXT1_IDENTITY_ACCESS_MODE, 1);
 630         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_DEFAULT_PAGE_OUT_TO_SYSTEM_MEMORY, 1);
 631         WREG32(mmVM_L2_CNTL, tmp);
 632         tmp = REG_SET_FIELD(0, VM_L2_CNTL2, INVALIDATE_ALL_L1_TLBS, 1);
 633         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL2, INVALIDATE_L2_CACHE, 1);
 634         WREG32(mmVM_L2_CNTL2, tmp);
 635
 636         field = adev->vm_manager.fragment_size;
 637         tmp = RREG32(mmVM_L2_CNTL3);
 638         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, L2_CACHE_BIGK_ASSOCIATIVITY, 1);
 639         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, BANK_SELECT, field);
 640         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, L2_CACHE_BIGK_FRAGMENT_SIZE, field);
 641         WREG32(mmVM_L2_CNTL3, tmp);
 642         /* setup context0 */
 643         WREG32(mmVM_CONTEXT0_PAGE_TABLE_START_ADDR, adev->gmc.gart_start >> 12);
 644         WREG32(mmVM_CONTEXT0_PAGE_TABLE_END_ADDR, adev->gmc.gart_end >> 12);
 645         WREG32(mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR, adev->gart.table_addr >> 12);
 646         WREG32(mmVM_CONTEXT0_PROTECTION_FAULT_DEFAULT_ADDR,
 647                         (u32)(adev->dummy_page_addr >> 12));
 648         WREG32(mmVM_CONTEXT0_CNTL2, 0);
 649         tmp = RREG32(mmVM_CONTEXT0_CNTL);
 650         tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, ENABLE_CONTEXT, 1);
 651         tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, PAGE_TABLE_DEPTH, 0);
 652         tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 653         WREG32(mmVM_CONTEXT0_CNTL, tmp);
 654
 655         WREG32(0x575, 0);
 656         WREG32(0x576, 0);
 657         WREG32(0x577, 0);
 658
 659         /* empty context1-15 */
 660         /* FIXME start with 4G, once using 2 level pt switch to full
 661          * vm size space
 662          */
 663         /* set vm size, must be a multiple of 4 */
 664         WREG32(mmVM_CONTEXT1_PAGE_TABLE_START_ADDR, 0);
 665         WREG32(mmVM_CONTEXT1_PAGE_TABLE_END_ADDR, adev->vm_manager.max_pfn - 1);
 666         for (i = 1; i < 16; i++) {
 667                 if (i < 8)
 668                         WREG32(mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR + i,
 669                                adev->gart.table_addr >> 12);
 670                 else
 671                         WREG32(mmVM_CONTEXT8_PAGE_TABLE_BASE_ADDR + i - 8,
 672                                adev->gart.table_addr >> 12);
 673         }
 674
 675         /* enable context1-15 */
 676         WREG32(mmVM_CONTEXT1_PROTECTION_FAULT_DEFAULT_ADDR,
 677                (u32)(adev->dummy_page_addr >> 12));
 678         WREG32(mmVM_CONTEXT1_CNTL2, 4);
 679         tmp = RREG32(mmVM_CONTEXT1_CNTL);
 680         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, ENABLE_CONTEXT, 1);
 681         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, PAGE_TABLE_DEPTH, 1);
 682         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, PAGE_TABLE_BLOCK_SIZE,
 683                             adev->vm_manager.block_size - 9);
 684         WREG32(mmVM_CONTEXT1_CNTL, tmp);
 685         if (amdgpu_vm_fault_stop == AMDGPU_VM_FAULT_STOP_ALWAYS)
 686                 gmc_v7_0_set_fault_enable_default(adev, false);
 687         else
 688                 gmc_v7_0_set_fault_enable_default(adev, true);
 689
 690         if (adev->asic_type == CHIP_KAVERI) {
 691                 tmp = RREG32(mmCHUB_CONTROL);
 692                 tmp &= ~BYPASS_VM;
 693                 WREG32(mmCHUB_CONTROL, tmp);
 694         }
 695
 696         gmc_v7_0_flush_gpu_tlb(adev, 0);
 697         DRM_INFO("PCIE GART of %uM enabled (table at 0x%016llX).\n",
 698                  (unsigned)(adev->gmc.gart_size >> 20),
 699                  (unsigned long long)adev->gart.table_addr);
 700         adev->gart.ready = true;
 701         return 0;
 702 }
 703
 704 static int gmc_v7_0_gart_init(struct amdgpu_device *adev)
 705 {
 706         int r;
 707
 708         if (adev->gart.robj) {
 709                 WARN(1, "R600 PCIE GART already initialized\n");
 710                 return 0;
 711         }
 712         /* Initialize common gart structure */
 713         r = amdgpu_gart_init(adev);
 714         if (r)
 715                 return r;
 716         adev->gart.table_size = adev->gart.num_gpu_pages * 8;
 717         adev->gart.gart_pte_flags = 0;
 718         return amdgpu_gart_table_vram_alloc(adev);
 719 }
 720
 721 /**
 722  * gmc_v7_0_gart_disable - gart disable
 723  *
 724  * @adev: amdgpu_device pointer
 725  *
 726  * This disables all VM page table (CIK).
 727  */
 728 static void gmc_v7_0_gart_disable(struct amdgpu_device *adev)
 729 {
 730         u32 tmp;
 731
 732         /* Disable all tables */
 733         WREG32(mmVM_CONTEXT0_CNTL, 0);
 734         WREG32(mmVM_CONTEXT1_CNTL, 0);
 735         /* Setup TLB control */
 736         tmp = RREG32(mmMC_VM_MX_L1_TLB_CNTL);
 737         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 0);
 738         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_FRAGMENT_PROCESSING, 0);
 739         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_ADVANCED_DRIVER_MODEL, 0);
 740         WREG32(mmMC_VM_MX_L1_TLB_CNTL, tmp);
 741         /* Setup L2 cache */
 742         tmp = RREG32(mmVM_L2_CNTL);
 743         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_CACHE, 0);
 744         WREG32(mmVM_L2_CNTL, tmp);
 745         WREG32(mmVM_L2_CNTL2, 0);
 746         amdgpu_gart_table_vram_unpin(adev);
 747 }
 748
 749 /**
 750  * gmc_v7_0_gart_fini - vm fini callback
 751  *
 752  * @adev: amdgpu_device pointer
 753  *
 754  * Tears down the driver GART/VM setup (CIK).
 755  */
 756 static void gmc_v7_0_gart_fini(struct amdgpu_device *adev)
 757 {
 758         amdgpu_gart_table_vram_free(adev);
 759         amdgpu_gart_fini(adev);
 760 }
 761
 762 /**
 763  * gmc_v7_0_vm_decode_fault - print human readable fault info
 764  *
 765  * @adev: amdgpu_device pointer
 766  * @status: VM_CONTEXT1_PROTECTION_FAULT_STATUS register value
 767  * @addr: VM_CONTEXT1_PROTECTION_FAULT_ADDR register value
 768  *
 769  * Print human readable fault information (CIK).
 770  */
 771 static void gmc_v7_0_vm_decode_fault(struct amdgpu_device *adev, u32 status,
 772                                      u32 addr, u32 mc_client, unsigned pasid)
 773 {
 774         u32 vmid = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS, VMID);
 775         u32 protections = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS,
 776                                         PROTECTIONS);
 777         char block[5] = { mc_client >> 24, (mc_client >> 16) & 0xff,
 778                 (mc_client >> 8) & 0xff, mc_client & 0xff, 0 };
 779         u32 mc_id;
 780
 781         mc_id = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS,
 782                               MEMORY_CLIENT_ID);
 783
 784         dev_err(adev->dev, "VM fault (0x%02x, vmid %d, pasid %d) at page %u, %s from '%s' (0x%08x) (%d)\n",
 785                protections, vmid, pasid, addr,
 786                REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS,
 787                              MEMORY_CLIENT_RW) ?
 788                "write" : "read", block, mc_client, mc_id);
 789 }
 790
 791
 792 static const u32 mc_cg_registers[] = {
 793         mmMC_HUB_MISC_HUB_CG,
 794         mmMC_HUB_MISC_SIP_CG,
 795         mmMC_HUB_MISC_VM_CG,
 796         mmMC_XPB_CLK_GAT,
 797         mmATC_MISC_CG,
 798         mmMC_CITF_MISC_WR_CG,
 799         mmMC_CITF_MISC_RD_CG,
 800         mmMC_CITF_MISC_VM_CG,
 801         mmVM_L2_CG,
 802 };
 803
 804 static const u32 mc_cg_ls_en[] = {
 805         MC_HUB_MISC_HUB_CG__MEM_LS_ENABLE_MASK,
 806         MC_HUB_MISC_SIP_CG__MEM_LS_ENABLE_MASK,
 807         MC_HUB_MISC_VM_CG__MEM_LS_ENABLE_MASK,
 808         MC_XPB_CLK_GAT__MEM_LS_ENABLE_MASK,
 809         ATC_MISC_CG__MEM_LS_ENABLE_MASK,
 810         MC_CITF_MISC_WR_CG__MEM_LS_ENABLE_MASK,
 811         MC_CITF_MISC_RD_CG__MEM_LS_ENABLE_MASK,
 812         MC_CITF_MISC_VM_CG__MEM_LS_ENABLE_MASK,
 813         VM_L2_CG__MEM_LS_ENABLE_MASK,
 814 };
 815
 816 static const u32 mc_cg_en[] = {
 817         MC_HUB_MISC_HUB_CG__ENABLE_MASK,
 818         MC_HUB_MISC_SIP_CG__ENABLE_MASK,
 819         MC_HUB_MISC_VM_CG__ENABLE_MASK,
 820         MC_XPB_CLK_GAT__ENABLE_MASK,
 821         ATC_MISC_CG__ENABLE_MASK,
 822         MC_CITF_MISC_WR_CG__ENABLE_MASK,
 823         MC_CITF_MISC_RD_CG__ENABLE_MASK,
 824         MC_CITF_MISC_VM_CG__ENABLE_MASK,
 825         VM_L2_CG__ENABLE_MASK,
 826 };
 827
 828 static void gmc_v7_0_enable_mc_ls(struct amdgpu_device *adev,
 829                                   bool enable)
 830 {
 831         int i;
 832         u32 orig, data;
 833
 834         for (i = 0; i < ARRAY_SIZE(mc_cg_registers); i++) {
 835                 orig = data = RREG32(mc_cg_registers[i]);
 836                 if (enable && (adev->cg_flags & AMD_CG_SUPPORT_MC_LS))
 837                         data |= mc_cg_ls_en[i];
 838                 else
 839                         data &= ~mc_cg_ls_en[i];
 840                 if (data != orig)
 841                         WREG32(mc_cg_registers[i], data);
 842         }
 843 }
 844
 845 static void gmc_v7_0_enable_mc_mgcg(struct amdgpu_device *adev,
 846                                     bool enable)
 847 {
 848         int i;
 849         u32 orig, data;
 850
 851         for (i = 0; i < ARRAY_SIZE(mc_cg_registers); i++) {
 852                 orig = data = RREG32(mc_cg_registers[i]);
 853                 if (enable && (adev->cg_flags & AMD_CG_SUPPORT_MC_MGCG))
 854                         data |= mc_cg_en[i];
 855                 else
 856                         data &= ~mc_cg_en[i];
 857                 if (data != orig)
 858                         WREG32(mc_cg_registers[i], data);
 859         }
 860 }
 861
 862 static void gmc_v7_0_enable_bif_mgls(struct amdgpu_device *adev,
 863                                      bool enable)
 864 {
 865         u32 orig, data;
 866
 867         orig = data = RREG32_PCIE(ixPCIE_CNTL2);
 868
 869         if (enable && (adev->cg_flags & AMD_CG_SUPPORT_BIF_LS)) {
 870                 data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_LS_EN, 1);
 871                 data = REG_SET_FIELD(data, PCIE_CNTL2, MST_MEM_LS_EN, 1);
 872                 data = REG_SET_FIELD(data, PCIE_CNTL2, REPLAY_MEM_LS_EN, 1);
 873                 data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_AGGRESSIVE_LS_EN, 1);
 874         } else {
 875                 data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_LS_EN, 0);
 876                 data = REG_SET_FIELD(data, PCIE_CNTL2, MST_MEM_LS_EN, 0);
 877                 data = REG_SET_FIELD(data, PCIE_CNTL2, REPLAY_MEM_LS_EN, 0);
 878                 data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_AGGRESSIVE_LS_EN, 0);
 879         }
 880
 881         if (orig != data)
 882                 WREG32_PCIE(ixPCIE_CNTL2, data);
 883 }
 884
 885 static void gmc_v7_0_enable_hdp_mgcg(struct amdgpu_device *adev,
 886                                      bool enable)
 887 {
 888         u32 orig, data;
 889
 890         orig = data = RREG32(mmHDP_HOST_PATH_CNTL);
 891
 892         if (enable && (adev->cg_flags & AMD_CG_SUPPORT_HDP_MGCG))
 893                 data = REG_SET_FIELD(data, HDP_HOST_PATH_CNTL, CLOCK_GATING_DIS, 0);
 894         else
 895                 data = REG_SET_FIELD(data, HDP_HOST_PATH_CNTL, CLOCK_GATING_DIS, 1);
 896
 897         if (orig != data)
 898                 WREG32(mmHDP_HOST_PATH_CNTL, data);
 899 }
 900
 901 static void gmc_v7_0_enable_hdp_ls(struct amdgpu_device *adev,
 902                                    bool enable)
 903 {
 904         u32 orig, data;
 905
 906         orig = data = RREG32(mmHDP_MEM_POWER_LS);
 907
 908         if (enable && (adev->cg_flags & AMD_CG_SUPPORT_HDP_LS))
 909                 data = REG_SET_FIELD(data, HDP_MEM_POWER_LS, LS_ENABLE, 1);
 910         else
 911                 data = REG_SET_FIELD(data, HDP_MEM_POWER_LS, LS_ENABLE, 0);
 912
 913         if (orig != data)
 914                 WREG32(mmHDP_MEM_POWER_LS, data);
 915 }
 916
 917 static int gmc_v7_0_convert_vram_type(int mc_seq_vram_type)
 918 {
 919         switch (mc_seq_vram_type) {
 920         case MC_SEQ_MISC0__MT__GDDR1:
 921                 return AMDGPU_VRAM_TYPE_GDDR1;
 922         case MC_SEQ_MISC0__MT__DDR2:
 923                 return AMDGPU_VRAM_TYPE_DDR2;
 924         case MC_SEQ_MISC0__MT__GDDR3:
 925                 return AMDGPU_VRAM_TYPE_GDDR3;
 926         case MC_SEQ_MISC0__MT__GDDR4:
 927                 return AMDGPU_VRAM_TYPE_GDDR4;
 928         case MC_SEQ_MISC0__MT__GDDR5:
 929                 return AMDGPU_VRAM_TYPE_GDDR5;
 930         case MC_SEQ_MISC0__MT__HBM:
 931                 return AMDGPU_VRAM_TYPE_HBM;
 932         case MC_SEQ_MISC0__MT__DDR3:
 933                 return AMDGPU_VRAM_TYPE_DDR3;
 934         default:
 935                 return AMDGPU_VRAM_TYPE_UNKNOWN;
 936         }
 937 }
 938
 939 static int gmc_v7_0_early_init(void *handle)
 940 {
 941         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 942
 943         gmc_v7_0_set_gmc_funcs(adev);
 944         gmc_v7_0_set_irq_funcs(adev);
 945
 946         adev->gmc.shared_aperture_start = 0x2000000000000000ULL;
 947         adev->gmc.shared_aperture_end =
 948                 adev->gmc.shared_aperture_start + (4ULL << 30) - 1;
 949         adev->gmc.private_aperture_start =
 950                 adev->gmc.shared_aperture_end + 1;
 951         adev->gmc.private_aperture_end =
 952                 adev->gmc.private_aperture_start + (4ULL << 30) - 1;
 953
 954         return 0;
 955 }
 956
 957 static int gmc_v7_0_late_init(void *handle)
 958 {
 959         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 960
 961         amdgpu_bo_late_init(adev);
 962
 963         if (amdgpu_vm_fault_stop != AMDGPU_VM_FAULT_STOP_ALWAYS)
 964                 return amdgpu_irq_get(adev, &adev->gmc.vm_fault, 0);
 965         else
 966                 return 0;
 967 }
 968
 969 static unsigned gmc_v7_0_get_vbios_fb_size(struct amdgpu_device *adev)
 970 {
 971         u32 d1vga_control = RREG32(mmD1VGA_CONTROL);
 972         unsigned size;
 973
 974         if (REG_GET_FIELD(d1vga_control, D1VGA_CONTROL, D1VGA_MODE_ENABLE)) {
 975                 size = 9 * 1024 * 1024; /* reserve 8MB for vga emulator and 1 MB for FB */
 976         } else {
 977                 u32 viewport = RREG32(mmVIEWPORT_SIZE);
 978                 size = (REG_GET_FIELD(viewport, VIEWPORT_SIZE, VIEWPORT_HEIGHT) *
 979                         REG_GET_FIELD(viewport, VIEWPORT_SIZE, VIEWPORT_WIDTH) *
 980                         4);
 981         }
 982         /* return 0 if the pre-OS buffer uses up most of vram */
 983         if ((adev->gmc.real_vram_size - size) < (8 * 1024 * 1024))
 984                 return 0;
 985         return size;
 986 }
 987
 988 static int gmc_v7_0_sw_init(void *handle)
 989 {
 990         int r;
 991         int dma_bits;
 992         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 993
 994         if (adev->flags & AMD_IS_APU) {
 995                 adev->gmc.vram_type = AMDGPU_VRAM_TYPE_UNKNOWN;
 996         } else {
 997                 u32 tmp = RREG32(mmMC_SEQ_MISC0);
 998                 tmp &= MC_SEQ_MISC0__MT__MASK;
 999                 adev->gmc.vram_type = gmc_v7_0_convert_vram_type(tmp);
1000         }
1001
1002         r = amdgpu_irq_add_id(adev, AMDGPU_IH_CLIENTID_LEGACY, 146, &adev->gmc.vm_fault);
1003         if (r)
1004                 return r;
1005
1006         r = amdgpu_irq_add_id(adev, AMDGPU_IH_CLIENTID_LEGACY, 147, &adev->gmc.vm_fault);
1007         if (r)
1008                 return r;
1009
1010         /* Adjust VM size here.
1011          * Currently set to 4GB ((1 << 20) 4k pages).
1012          * Max GPUVM size for cayman and SI is 40 bits.
1013          */
1014         amdgpu_vm_adjust_size(adev, 64, 9, 1, 40);
1015
1016         /* Set the internal MC address mask
1017          * This is the max address of the GPU's
1018          * internal address space.
1019          */
1020         adev->gmc.mc_mask = 0xffffffffffULL; /* 40 bit MC */
1021
1022         /* set DMA mask + need_dma32 flags.
1023          * PCIE - can handle 40-bits.
1024          * IGP - can handle 40-bits
1025          * PCI - dma32 for legacy pci gart, 40 bits on newer asics
1026          */
1027         adev->need_dma32 = false;
1028         dma_bits = adev->need_dma32 ? 32 : 40;
1029         r = pci_set_dma_mask(adev->pdev, DMA_BIT_MASK(dma_bits));
1030         if (r) {
1031                 adev->need_dma32 = true;
1032                 dma_bits = 32;
1033                 pr_warn("amdgpu: No suitable DMA available\n");
1034         }
1035         r = pci_set_consistent_dma_mask(adev->pdev, DMA_BIT_MASK(dma_bits));
1036         if (r) {
1037                 pci_set_consistent_dma_mask(adev->pdev, DMA_BIT_MASK(32));
1038                 pr_warn("amdgpu: No coherent DMA available\n");
1039         }
1040         adev->need_swiotlb = drm_get_max_iomem() > ((u64)1 << dma_bits);
1041
1042         r = gmc_v7_0_init_microcode(adev);
1043         if (r) {
1044                 DRM_ERROR("Failed to load mc firmware!\n");
1045                 return r;
1046         }
1047
1048         r = gmc_v7_0_mc_init(adev);
1049         if (r)
1050                 return r;
1051
1052         adev->gmc.stolen_size = gmc_v7_0_get_vbios_fb_size(adev);
1053
1054         /* Memory manager */
1055         r = amdgpu_bo_init(adev);
1056         if (r)
1057                 return r;
1058
1059         r = gmc_v7_0_gart_init(adev);
1060         if (r)
1061                 return r;
1062
1063         /*
1064          * number of VMs
1065          * VMID 0 is reserved for System
1066          * amdgpu graphics/compute will use VMIDs 1-7
1067          * amdkfd will use VMIDs 8-15
1068          */
1069         adev->vm_manager.id_mgr[0].num_ids = AMDGPU_NUM_OF_VMIDS;
1070         amdgpu_vm_manager_init(adev);
1071
1072         /* base offset of vram pages */
1073         if (adev->flags & AMD_IS_APU) {
1074                 u64 tmp = RREG32(mmMC_VM_FB_OFFSET);
1075
1076                 tmp <<= 22;
1077                 adev->vm_manager.vram_base_offset = tmp;
1078         } else {
1079                 adev->vm_manager.vram_base_offset = 0;
1080         }
1081
1082         return 0;
1083 }
1084
1085 static int gmc_v7_0_sw_fini(void *handle)
1086 {
1087         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1088
1089         amdgpu_gem_force_release(adev);
1090         amdgpu_vm_manager_fini(adev);
1091         gmc_v7_0_gart_fini(adev);
1092         amdgpu_bo_fini(adev);
1093         release_firmware(adev->gmc.fw);
1094         adev->gmc.fw = NULL;
1095
1096         return 0;
1097 }
1098
1099 static int gmc_v7_0_hw_init(void *handle)
1100 {
1101         int r;
1102         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1103
1104         gmc_v7_0_init_golden_registers(adev);
1105
1106         gmc_v7_0_mc_program(adev);
1107
1108         if (!(adev->flags & AMD_IS_APU)) {
1109                 r = gmc_v7_0_mc_load_microcode(adev);
1110                 if (r) {
1111                         DRM_ERROR("Failed to load MC firmware!\n");
1112                         return r;
1113                 }
1114         }
1115
1116         r = gmc_v7_0_gart_enable(adev);
1117         if (r)
1118                 return r;
1119
1120         return r;
1121 }
1122
1123 static int gmc_v7_0_hw_fini(void *handle)
1124 {
1125         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1126
1127         amdgpu_irq_put(adev, &adev->gmc.vm_fault, 0);
1128         gmc_v7_0_gart_disable(adev);
1129
1130         return 0;
1131 }
1132
1133 static int gmc_v7_0_suspend(void *handle)
1134 {
1135         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1136
1137         gmc_v7_0_hw_fini(adev);
1138
1139         return 0;
1140 }
1141
1142 static int gmc_v7_0_resume(void *handle)
1143 {
1144         int r;
1145         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1146
1147         r = gmc_v7_0_hw_init(adev);
1148         if (r)
1149                 return r;
1150
1151         amdgpu_vmid_reset_all(adev);
1152
1153         return 0;
1154 }
1155
1156 static bool gmc_v7_0_is_idle(void *handle)
1157 {
1158         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1159         u32 tmp = RREG32(mmSRBM_STATUS);
1160
1161         if (tmp & (SRBM_STATUS__MCB_BUSY_MASK | SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK |
1162                    SRBM_STATUS__MCC_BUSY_MASK | SRBM_STATUS__MCD_BUSY_MASK | SRBM_STATUS__VMC_BUSY_MASK))
1163                 return false;
1164
1165         return true;
1166 }
1167
1168 static int gmc_v7_0_wait_for_idle(void *handle)
1169 {
1170         unsigned i;
1171         u32 tmp;
1172         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1173
1174         for (i = 0; i < adev->usec_timeout; i++) {
1175                 /* read MC_STATUS */
1176                 tmp = RREG32(mmSRBM_STATUS) & (SRBM_STATUS__MCB_BUSY_MASK |
1177                                                SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK |
1178                                                SRBM_STATUS__MCC_BUSY_MASK |
1179                                                SRBM_STATUS__MCD_BUSY_MASK |
1180                                                SRBM_STATUS__VMC_BUSY_MASK);
1181                 if (!tmp)
1182                         return 0;
1183                 udelay(1);
1184         }
1185         return -ETIMEDOUT;
1186
1187 }
1188
1189 static int gmc_v7_0_soft_reset(void *handle)
1190 {
1191         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1192         u32 srbm_soft_reset = 0;
1193         u32 tmp = RREG32(mmSRBM_STATUS);
1194
1195         if (tmp & SRBM_STATUS__VMC_BUSY_MASK)
1196                 srbm_soft_reset = REG_SET_FIELD(srbm_soft_reset,
1197                                                 SRBM_SOFT_RESET, SOFT_RESET_VMC, 1);
1198
1199         if (tmp & (SRBM_STATUS__MCB_BUSY_MASK | SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK |
1200                    SRBM_STATUS__MCC_BUSY_MASK | SRBM_STATUS__MCD_BUSY_MASK)) {
1201                 if (!(adev->flags & AMD_IS_APU))
1202                         srbm_soft_reset = REG_SET_FIELD(srbm_soft_reset,
1203                                                         SRBM_SOFT_RESET, SOFT_RESET_MC, 1);
1204         }
1205
1206         if (srbm_soft_reset) {
1207                 gmc_v7_0_mc_stop(adev);
1208                 if (gmc_v7_0_wait_for_idle((void *)adev)) {
1209                         dev_warn(adev->dev, "Wait for GMC idle timed out !\n");
1210                 }
1211
1212
1213                 tmp = RREG32(mmSRBM_SOFT_RESET);
1214                 tmp |= srbm_soft_reset;
1215                 dev_info(adev->dev, "SRBM_SOFT_RESET=0x%08X\n", tmp);
1216                 WREG32(mmSRBM_SOFT_RESET, tmp);
1217                 tmp = RREG32(mmSRBM_SOFT_RESET);
1218
1219                 udelay(50);
1220
1221                 tmp &= ~srbm_soft_reset;
1222                 WREG32(mmSRBM_SOFT_RESET, tmp);
1223                 tmp = RREG32(mmSRBM_SOFT_RESET);
1224
1225                 /* Wait a little for things to settle down */
1226                 udelay(50);
1227
1228                 gmc_v7_0_mc_resume(adev);
1229                 udelay(50);
1230         }
1231
1232         return 0;
1233 }
1234
1235 static int gmc_v7_0_vm_fault_interrupt_state(struct amdgpu_device *adev,
1236                                              struct amdgpu_irq_src *src,
1237                                              unsigned type,
1238                                              enum amdgpu_interrupt_state state)
1239 {
1240         u32 tmp;
1241         u32 bits = (VM_CONTEXT1_CNTL__RANGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1242                     VM_CONTEXT1_CNTL__DUMMY_PAGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1243                     VM_CONTEXT1_CNTL__PDE0_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1244                     VM_CONTEXT1_CNTL__VALID_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1245                     VM_CONTEXT1_CNTL__READ_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1246                     VM_CONTEXT1_CNTL__WRITE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK);
1247
1248         switch (state) {
1249         case AMDGPU_IRQ_STATE_DISABLE:
1250                 /* system context */
1251                 tmp = RREG32(mmVM_CONTEXT0_CNTL);
1252                 tmp &= ~bits;
1253                 WREG32(mmVM_CONTEXT0_CNTL, tmp);
1254                 /* VMs */
1255                 tmp = RREG32(mmVM_CONTEXT1_CNTL);
1256                 tmp &= ~bits;
1257                 WREG32(mmVM_CONTEXT1_CNTL, tmp);
1258                 break;
1259         case AMDGPU_IRQ_STATE_ENABLE:
1260                 /* system context */
1261                 tmp = RREG32(mmVM_CONTEXT0_CNTL);
1262                 tmp |= bits;
1263                 WREG32(mmVM_CONTEXT0_CNTL, tmp);
1264                 /* VMs */
1265                 tmp = RREG32(mmVM_CONTEXT1_CNTL);
1266                 tmp |= bits;
1267                 WREG32(mmVM_CONTEXT1_CNTL, tmp);
1268                 break;
1269         default:
1270                 break;
1271         }
1272
1273         return 0;
1274 }
1275
1276 static int gmc_v7_0_process_interrupt(struct amdgpu_device *adev,
1277                                       struct amdgpu_irq_src *source,
1278                                       struct amdgpu_iv_entry *entry)
1279 {
1280         u32 addr, status, mc_client;
1281
1282         addr = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_ADDR);
1283         status = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_STATUS);
1284         mc_client = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_MCCLIENT);
1285         /* reset addr and status */
1286         WREG32_P(mmVM_CONTEXT1_CNTL2, 1, ~1);
1287
1288         if (!addr && !status)
1289                 return 0;
1290
1291         if (amdgpu_vm_fault_stop == AMDGPU_VM_FAULT_STOP_FIRST)
1292                 gmc_v7_0_set_fault_enable_default(adev, false);
1293
1294         if (printk_ratelimit()) {
1295                 dev_err(adev->dev, "GPU fault detected: %d 0x%08x\n",
1296                         entry->src_id, entry->src_data[0]);
1297                 dev_err(adev->dev, "  VM_CONTEXT1_PROTECTION_FAULT_ADDR   0x%08X\n",
1298                         addr);
1299                 dev_err(adev->dev, "  VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x%08X\n",
1300                         status);
1301                 gmc_v7_0_vm_decode_fault(adev, status, addr, mc_client,
1302                                          entry->pasid);
1303         }
1304
1305         return 0;
1306 }
1307
1308 static int gmc_v7_0_set_clockgating_state(void *handle,
1309                                           enum amd_clockgating_state state)
1310 {
1311         bool gate = false;
1312         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1313
1314         if (state == AMD_CG_STATE_GATE)
1315                 gate = true;
1316
1317         if (!(adev->flags & AMD_IS_APU)) {
1318                 gmc_v7_0_enable_mc_mgcg(adev, gate);
1319                 gmc_v7_0_enable_mc_ls(adev, gate);
1320         }
1321         gmc_v7_0_enable_bif_mgls(adev, gate);
1322         gmc_v7_0_enable_hdp_mgcg(adev, gate);
1323         gmc_v7_0_enable_hdp_ls(adev, gate);
1324
1325         return 0;
1326 }
1327
1328 static int gmc_v7_0_set_powergating_state(void *handle,
1329                                           enum amd_powergating_state state)
1330 {
1331         return 0;
1332 }
1333
1334 static const struct amd_ip_funcs gmc_v7_0_ip_funcs = {
1335         .name = "gmc_v7_0",
1336         .early_init = gmc_v7_0_early_init,
1337         .late_init = gmc_v7_0_late_init,
1338         .sw_init = gmc_v7_0_sw_init,
1339         .sw_fini = gmc_v7_0_sw_fini,
1340         .hw_init = gmc_v7_0_hw_init,
1341         .hw_fini = gmc_v7_0_hw_fini,
1342         .suspend = gmc_v7_0_suspend,
1343         .resume = gmc_v7_0_resume,
1344         .is_idle = gmc_v7_0_is_idle,
1345         .wait_for_idle = gmc_v7_0_wait_for_idle,
1346         .soft_reset = gmc_v7_0_soft_reset,
1347         .set_clockgating_state = gmc_v7_0_set_clockgating_state,
1348         .set_powergating_state = gmc_v7_0_set_powergating_state,
1349 };
1350
1351 static const struct amdgpu_gmc_funcs gmc_v7_0_gmc_funcs = {
1352         .flush_gpu_tlb = gmc_v7_0_flush_gpu_tlb,
1353         .emit_flush_gpu_tlb = gmc_v7_0_emit_flush_gpu_tlb,
1354         .emit_pasid_mapping = gmc_v7_0_emit_pasid_mapping,
1355         .set_pte_pde = gmc_v7_0_set_pte_pde,
1356         .set_prt = gmc_v7_0_set_prt,
1357         .get_vm_pte_flags = gmc_v7_0_get_vm_pte_flags,
1358         .get_vm_pde = gmc_v7_0_get_vm_pde
1359 };
1360
1361 static const struct amdgpu_irq_src_funcs gmc_v7_0_irq_funcs = {
1362         .set = gmc_v7_0_vm_fault_interrupt_state,
1363         .process = gmc_v7_0_process_interrupt,
1364 };
1365
1366 static void gmc_v7_0_set_gmc_funcs(struct amdgpu_device *adev)
1367 {
1368         if (adev->gmc.gmc_funcs == NULL)
1369                 adev->gmc.gmc_funcs = &gmc_v7_0_gmc_funcs;
1370 }
1371
1372 static void gmc_v7_0_set_irq_funcs(struct amdgpu_device *adev)
1373 {
1374         adev->gmc.vm_fault.num_types = 1;
1375         adev->gmc.vm_fault.funcs = &gmc_v7_0_irq_funcs;
1376 }
1377
1378 const struct amdgpu_ip_block_version gmc_v7_0_ip_block =
1379 {
1380         .type = AMD_IP_BLOCK_TYPE_GMC,
1381         .major = 7,
1382         .minor = 0,
1383         .rev = 0,
1384         .funcs = &gmc_v7_0_ip_funcs,
1385 };
1386
1387 const struct amdgpu_ip_block_version gmc_v7_4_ip_block =
1388 {
1389         .type = AMD_IP_BLOCK_TYPE_GMC,
1390         .major = 7,
1391         .minor = 4,
1392         .rev = 0,
1393         .funcs = &gmc_v7_0_ip_funcs,
1394 };