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.real_vram_size > adev->gmc.aper_size) {
 386                 adev->gmc.aper_base = ((u64)RREG32(mmMC_VM_FB_OFFSET)) << 22;
 387                 adev->gmc.aper_size = adev->gmc.real_vram_size;
 388         }
 389 #endif
 390
 391         /* In case the PCI BAR is larger than the actual amount of vram */
 392         adev->gmc.visible_vram_size = adev->gmc.aper_size;
 393         if (adev->gmc.visible_vram_size > adev->gmc.real_vram_size)
 394                 adev->gmc.visible_vram_size = adev->gmc.real_vram_size;
 395
 396         /* set the gart size */
 397         if (amdgpu_gart_size == -1) {
 398                 switch (adev->asic_type) {
 399                 case CHIP_TOPAZ:     /* no MM engines */
 400                 default:
 401                         adev->gmc.gart_size = 256ULL << 20;
 402                         break;
 403 #ifdef CONFIG_DRM_AMDGPU_CIK
 404                 case CHIP_BONAIRE: /* UVD, VCE do not support GPUVM */
 405                 case CHIP_HAWAII:  /* UVD, VCE do not support GPUVM */
 406                 case CHIP_KAVERI:  /* UVD, VCE do not support GPUVM */
 407                 case CHIP_KABINI:  /* UVD, VCE do not support GPUVM */
 408                 case CHIP_MULLINS: /* UVD, VCE do not support GPUVM */
 409                         adev->gmc.gart_size = 1024ULL << 20;
 410                         break;
 411 #endif
 412                 }
 413         } else {
 414                 adev->gmc.gart_size = (u64)amdgpu_gart_size << 20;
 415         }
 416
 417         gmc_v7_0_vram_gtt_location(adev, &adev->gmc);
 418
 419         return 0;
 420 }
 421
 422 /**
 423  * gmc_v7_0_flush_gpu_tlb_pasid - tlb flush via pasid
 424  *
 425  * @adev: amdgpu_device pointer
 426  * @pasid: pasid to be flush
 427  *
 428  * Flush the TLB for the requested pasid.
 429  */
 430 static int gmc_v7_0_flush_gpu_tlb_pasid(struct amdgpu_device *adev,
 431                                         uint16_t pasid, uint32_t flush_type,
 432                                         bool all_hub)
 433 {
 434         int vmid;
 435         unsigned int tmp;
 436
 437         if (adev->in_gpu_reset)
 438                 return -EIO;
 439
 440         for (vmid = 1; vmid < 16; vmid++) {
 441
 442                 tmp = RREG32(mmATC_VMID0_PASID_MAPPING + vmid);
 443                 if ((tmp & ATC_VMID0_PASID_MAPPING__VALID_MASK) &&
 444                         (tmp & ATC_VMID0_PASID_MAPPING__PASID_MASK) == pasid) {
 445                         WREG32(mmVM_INVALIDATE_REQUEST, 1 << vmid);
 446                         RREG32(mmVM_INVALIDATE_RESPONSE);
 447                         break;
 448                 }
 449         }
 450
 451         return 0;
 452 }
 453
 454 /*
 455  * GART
 456  * VMID 0 is the physical GPU addresses as used by the kernel.
 457  * VMIDs 1-15 are used for userspace clients and are handled
 458  * by the amdgpu vm/hsa code.
 459  */
 460
 461 /**
 462  * gmc_v7_0_flush_gpu_tlb - gart tlb flush callback
 463  *
 464  * @adev: amdgpu_device pointer
 465  * @vmid: vm instance to flush
 466  *
 467  * Flush the TLB for the requested page table (CIK).
 468  */
 469 static void gmc_v7_0_flush_gpu_tlb(struct amdgpu_device *adev, uint32_t vmid,
 470                                         uint32_t vmhub, uint32_t flush_type)
 471 {
 472         /* bits 0-15 are the VM contexts0-15 */
 473         WREG32(mmVM_INVALIDATE_REQUEST, 1 << vmid);
 474 }
 475
 476 static uint64_t gmc_v7_0_emit_flush_gpu_tlb(struct amdgpu_ring *ring,
 477                                             unsigned vmid, uint64_t pd_addr)
 478 {
 479         uint32_t reg;
 480
 481         if (vmid < 8)
 482                 reg = mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR + vmid;
 483         else
 484                 reg = mmVM_CONTEXT8_PAGE_TABLE_BASE_ADDR + vmid - 8;
 485         amdgpu_ring_emit_wreg(ring, reg, pd_addr >> 12);
 486
 487         /* bits 0-15 are the VM contexts0-15 */
 488         amdgpu_ring_emit_wreg(ring, mmVM_INVALIDATE_REQUEST, 1 << vmid);
 489
 490         return pd_addr;
 491 }
 492
 493 static void gmc_v7_0_emit_pasid_mapping(struct amdgpu_ring *ring, unsigned vmid,
 494                                         unsigned pasid)
 495 {
 496         amdgpu_ring_emit_wreg(ring, mmIH_VMID_0_LUT + vmid, pasid);
 497 }
 498
 499 static void gmc_v7_0_get_vm_pde(struct amdgpu_device *adev, int level,
 500                                 uint64_t *addr, uint64_t *flags)
 501 {
 502         BUG_ON(*addr & 0xFFFFFF0000000FFFULL);
 503 }
 504
 505 static void gmc_v7_0_get_vm_pte(struct amdgpu_device *adev,
 506                                 struct amdgpu_bo_va_mapping *mapping,
 507                                 uint64_t *flags)
 508 {
 509         *flags &= ~AMDGPU_PTE_EXECUTABLE;
 510         *flags &= ~AMDGPU_PTE_PRT;
 511 }
 512
 513 /**
 514  * gmc_v8_0_set_fault_enable_default - update VM fault handling
 515  *
 516  * @adev: amdgpu_device pointer
 517  * @value: true redirects VM faults to the default page
 518  */
 519 static void gmc_v7_0_set_fault_enable_default(struct amdgpu_device *adev,
 520                                               bool value)
 521 {
 522         u32 tmp;
 523
 524         tmp = RREG32(mmVM_CONTEXT1_CNTL);
 525         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 526                             RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 527         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 528                             DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 529         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 530                             PDE0_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 531         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 532                             VALID_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 533         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 534                             READ_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 535         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 536                             WRITE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 537         WREG32(mmVM_CONTEXT1_CNTL, tmp);
 538 }
 539
 540 /**
 541  * gmc_v7_0_set_prt - set PRT VM fault
 542  *
 543  * @adev: amdgpu_device pointer
 544  * @enable: enable/disable VM fault handling for PRT
 545  */
 546 static void gmc_v7_0_set_prt(struct amdgpu_device *adev, bool enable)
 547 {
 548         uint32_t tmp;
 549
 550         if (enable && !adev->gmc.prt_warning) {
 551                 dev_warn(adev->dev, "Disabling VM faults because of PRT request!\n");
 552                 adev->gmc.prt_warning = true;
 553         }
 554
 555         tmp = RREG32(mmVM_PRT_CNTL);
 556         tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
 557                             CB_DISABLE_READ_FAULT_ON_UNMAPPED_ACCESS, enable);
 558         tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
 559                             CB_DISABLE_WRITE_FAULT_ON_UNMAPPED_ACCESS, enable);
 560         tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
 561                             TC_DISABLE_READ_FAULT_ON_UNMAPPED_ACCESS, enable);
 562         tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
 563                             TC_DISABLE_WRITE_FAULT_ON_UNMAPPED_ACCESS, enable);
 564         tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
 565                             L2_CACHE_STORE_INVALID_ENTRIES, enable);
 566         tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
 567                             L1_TLB_STORE_INVALID_ENTRIES, enable);
 568         tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
 569                             MASK_PDE0_FAULT, enable);
 570         WREG32(mmVM_PRT_CNTL, tmp);
 571
 572         if (enable) {
 573                 uint32_t low = AMDGPU_VA_RESERVED_SIZE >> AMDGPU_GPU_PAGE_SHIFT;
 574                 uint32_t high = adev->vm_manager.max_pfn -
 575                         (AMDGPU_VA_RESERVED_SIZE >> AMDGPU_GPU_PAGE_SHIFT);
 576
 577                 WREG32(mmVM_PRT_APERTURE0_LOW_ADDR, low);
 578                 WREG32(mmVM_PRT_APERTURE1_LOW_ADDR, low);
 579                 WREG32(mmVM_PRT_APERTURE2_LOW_ADDR, low);
 580                 WREG32(mmVM_PRT_APERTURE3_LOW_ADDR, low);
 581                 WREG32(mmVM_PRT_APERTURE0_HIGH_ADDR, high);
 582                 WREG32(mmVM_PRT_APERTURE1_HIGH_ADDR, high);
 583                 WREG32(mmVM_PRT_APERTURE2_HIGH_ADDR, high);
 584                 WREG32(mmVM_PRT_APERTURE3_HIGH_ADDR, high);
 585         } else {
 586                 WREG32(mmVM_PRT_APERTURE0_LOW_ADDR, 0xfffffff);
 587                 WREG32(mmVM_PRT_APERTURE1_LOW_ADDR, 0xfffffff);
 588                 WREG32(mmVM_PRT_APERTURE2_LOW_ADDR, 0xfffffff);
 589                 WREG32(mmVM_PRT_APERTURE3_LOW_ADDR, 0xfffffff);
 590                 WREG32(mmVM_PRT_APERTURE0_HIGH_ADDR, 0x0);
 591                 WREG32(mmVM_PRT_APERTURE1_HIGH_ADDR, 0x0);
 592                 WREG32(mmVM_PRT_APERTURE2_HIGH_ADDR, 0x0);
 593                 WREG32(mmVM_PRT_APERTURE3_HIGH_ADDR, 0x0);
 594         }
 595 }
 596
 597 /**
 598  * gmc_v7_0_gart_enable - gart enable
 599  *
 600  * @adev: amdgpu_device pointer
 601  *
 602  * This sets up the TLBs, programs the page tables for VMID0,
 603  * sets up the hw for VMIDs 1-15 which are allocated on
 604  * demand, and sets up the global locations for the LDS, GDS,
 605  * and GPUVM for FSA64 clients (CIK).
 606  * Returns 0 for success, errors for failure.
 607  */
 608 static int gmc_v7_0_gart_enable(struct amdgpu_device *adev)
 609 {
 610         uint64_t table_addr;
 611         int r, i;
 612         u32 tmp, field;
 613
 614         if (adev->gart.bo == NULL) {
 615                 dev_err(adev->dev, "No VRAM object for PCIE GART.\n");
 616                 return -EINVAL;
 617         }
 618         r = amdgpu_gart_table_vram_pin(adev);
 619         if (r)
 620                 return r;
 621
 622         table_addr = amdgpu_bo_gpu_offset(adev->gart.bo);
 623
 624         /* Setup TLB control */
 625         tmp = RREG32(mmMC_VM_MX_L1_TLB_CNTL);
 626         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 1);
 627         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_FRAGMENT_PROCESSING, 1);
 628         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, SYSTEM_ACCESS_MODE, 3);
 629         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_ADVANCED_DRIVER_MODEL, 1);
 630         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, SYSTEM_APERTURE_UNMAPPED_ACCESS, 0);
 631         WREG32(mmMC_VM_MX_L1_TLB_CNTL, tmp);
 632         /* Setup L2 cache */
 633         tmp = RREG32(mmVM_L2_CNTL);
 634         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_CACHE, 1);
 635         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_FRAGMENT_PROCESSING, 1);
 636         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_PTE_CACHE_LRU_UPDATE_BY_WRITE, 1);
 637         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_PDE0_CACHE_LRU_UPDATE_BY_WRITE, 1);
 638         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, EFFECTIVE_L2_QUEUE_SIZE, 7);
 639         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, CONTEXT1_IDENTITY_ACCESS_MODE, 1);
 640         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_DEFAULT_PAGE_OUT_TO_SYSTEM_MEMORY, 1);
 641         WREG32(mmVM_L2_CNTL, tmp);
 642         tmp = REG_SET_FIELD(0, VM_L2_CNTL2, INVALIDATE_ALL_L1_TLBS, 1);
 643         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL2, INVALIDATE_L2_CACHE, 1);
 644         WREG32(mmVM_L2_CNTL2, tmp);
 645
 646         field = adev->vm_manager.fragment_size;
 647         tmp = RREG32(mmVM_L2_CNTL3);
 648         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, L2_CACHE_BIGK_ASSOCIATIVITY, 1);
 649         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, BANK_SELECT, field);
 650         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, L2_CACHE_BIGK_FRAGMENT_SIZE, field);
 651         WREG32(mmVM_L2_CNTL3, tmp);
 652         /* setup context0 */
 653         WREG32(mmVM_CONTEXT0_PAGE_TABLE_START_ADDR, adev->gmc.gart_start >> 12);
 654         WREG32(mmVM_CONTEXT0_PAGE_TABLE_END_ADDR, adev->gmc.gart_end >> 12);
 655         WREG32(mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR, table_addr >> 12);
 656         WREG32(mmVM_CONTEXT0_PROTECTION_FAULT_DEFAULT_ADDR,
 657                         (u32)(adev->dummy_page_addr >> 12));
 658         WREG32(mmVM_CONTEXT0_CNTL2, 0);
 659         tmp = RREG32(mmVM_CONTEXT0_CNTL);
 660         tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, ENABLE_CONTEXT, 1);
 661         tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, PAGE_TABLE_DEPTH, 0);
 662         tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 663         WREG32(mmVM_CONTEXT0_CNTL, tmp);
 664
 665         WREG32(0x575, 0);
 666         WREG32(0x576, 0);
 667         WREG32(0x577, 0);
 668
 669         /* empty context1-15 */
 670         /* FIXME start with 4G, once using 2 level pt switch to full
 671          * vm size space
 672          */
 673         /* set vm size, must be a multiple of 4 */
 674         WREG32(mmVM_CONTEXT1_PAGE_TABLE_START_ADDR, 0);
 675         WREG32(mmVM_CONTEXT1_PAGE_TABLE_END_ADDR, adev->vm_manager.max_pfn - 1);
 676         for (i = 1; i < 16; i++) {
 677                 if (i < 8)
 678                         WREG32(mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR + i,
 679                                table_addr >> 12);
 680                 else
 681                         WREG32(mmVM_CONTEXT8_PAGE_TABLE_BASE_ADDR + i - 8,
 682                                table_addr >> 12);
 683         }
 684
 685         /* enable context1-15 */
 686         WREG32(mmVM_CONTEXT1_PROTECTION_FAULT_DEFAULT_ADDR,
 687                (u32)(adev->dummy_page_addr >> 12));
 688         WREG32(mmVM_CONTEXT1_CNTL2, 4);
 689         tmp = RREG32(mmVM_CONTEXT1_CNTL);
 690         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, ENABLE_CONTEXT, 1);
 691         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, PAGE_TABLE_DEPTH, 1);
 692         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, PAGE_TABLE_BLOCK_SIZE,
 693                             adev->vm_manager.block_size - 9);
 694         WREG32(mmVM_CONTEXT1_CNTL, tmp);
 695         if (amdgpu_vm_fault_stop == AMDGPU_VM_FAULT_STOP_ALWAYS)
 696                 gmc_v7_0_set_fault_enable_default(adev, false);
 697         else
 698                 gmc_v7_0_set_fault_enable_default(adev, true);
 699
 700         if (adev->asic_type == CHIP_KAVERI) {
 701                 tmp = RREG32(mmCHUB_CONTROL);
 702                 tmp &= ~BYPASS_VM;
 703                 WREG32(mmCHUB_CONTROL, tmp);
 704         }
 705
 706         gmc_v7_0_flush_gpu_tlb(adev, 0, 0, 0);
 707         DRM_INFO("PCIE GART of %uM enabled (table at 0x%016llX).\n",
 708                  (unsigned)(adev->gmc.gart_size >> 20),
 709                  (unsigned long long)table_addr);
 710         adev->gart.ready = true;
 711         return 0;
 712 }
 713
 714 static int gmc_v7_0_gart_init(struct amdgpu_device *adev)
 715 {
 716         int r;
 717
 718         if (adev->gart.bo) {
 719                 WARN(1, "R600 PCIE GART already initialized\n");
 720                 return 0;
 721         }
 722         /* Initialize common gart structure */
 723         r = amdgpu_gart_init(adev);
 724         if (r)
 725                 return r;
 726         adev->gart.table_size = adev->gart.num_gpu_pages * 8;
 727         adev->gart.gart_pte_flags = 0;
 728         return amdgpu_gart_table_vram_alloc(adev);
 729 }
 730
 731 /**
 732  * gmc_v7_0_gart_disable - gart disable
 733  *
 734  * @adev: amdgpu_device pointer
 735  *
 736  * This disables all VM page table (CIK).
 737  */
 738 static void gmc_v7_0_gart_disable(struct amdgpu_device *adev)
 739 {
 740         u32 tmp;
 741
 742         /* Disable all tables */
 743         WREG32(mmVM_CONTEXT0_CNTL, 0);
 744         WREG32(mmVM_CONTEXT1_CNTL, 0);
 745         /* Setup TLB control */
 746         tmp = RREG32(mmMC_VM_MX_L1_TLB_CNTL);
 747         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 0);
 748         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_FRAGMENT_PROCESSING, 0);
 749         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_ADVANCED_DRIVER_MODEL, 0);
 750         WREG32(mmMC_VM_MX_L1_TLB_CNTL, tmp);
 751         /* Setup L2 cache */
 752         tmp = RREG32(mmVM_L2_CNTL);
 753         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_CACHE, 0);
 754         WREG32(mmVM_L2_CNTL, tmp);
 755         WREG32(mmVM_L2_CNTL2, 0);
 756         amdgpu_gart_table_vram_unpin(adev);
 757 }
 758
 759 /**
 760  * gmc_v7_0_vm_decode_fault - print human readable fault info
 761  *
 762  * @adev: amdgpu_device pointer
 763  * @status: VM_CONTEXT1_PROTECTION_FAULT_STATUS register value
 764  * @addr: VM_CONTEXT1_PROTECTION_FAULT_ADDR register value
 765  * @mc_client: VM_CONTEXT1_PROTECTION_FAULT_MCCLIENT register value
 766  *
 767  * Print human readable fault information (CIK).
 768  */
 769 static void gmc_v7_0_vm_decode_fault(struct amdgpu_device *adev, u32 status,
 770                                      u32 addr, u32 mc_client, unsigned pasid)
 771 {
 772         u32 vmid = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS, VMID);
 773         u32 protections = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS,
 774                                         PROTECTIONS);
 775         char block[5] = { mc_client >> 24, (mc_client >> 16) & 0xff,
 776                 (mc_client >> 8) & 0xff, mc_client & 0xff, 0 };
 777         u32 mc_id;
 778
 779         mc_id = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS,
 780                               MEMORY_CLIENT_ID);
 781
 782         dev_err(adev->dev, "VM fault (0x%02x, vmid %d, pasid %d) at page %u, %s from '%s' (0x%08x) (%d)\n",
 783                protections, vmid, pasid, addr,
 784                REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS,
 785                              MEMORY_CLIENT_RW) ?
 786                "write" : "read", block, mc_client, mc_id);
 787 }
 788
 789
 790 static const u32 mc_cg_registers[] = {
 791         mmMC_HUB_MISC_HUB_CG,
 792         mmMC_HUB_MISC_SIP_CG,
 793         mmMC_HUB_MISC_VM_CG,
 794         mmMC_XPB_CLK_GAT,
 795         mmATC_MISC_CG,
 796         mmMC_CITF_MISC_WR_CG,
 797         mmMC_CITF_MISC_RD_CG,
 798         mmMC_CITF_MISC_VM_CG,
 799         mmVM_L2_CG,
 800 };
 801
 802 static const u32 mc_cg_ls_en[] = {
 803         MC_HUB_MISC_HUB_CG__MEM_LS_ENABLE_MASK,
 804         MC_HUB_MISC_SIP_CG__MEM_LS_ENABLE_MASK,
 805         MC_HUB_MISC_VM_CG__MEM_LS_ENABLE_MASK,
 806         MC_XPB_CLK_GAT__MEM_LS_ENABLE_MASK,
 807         ATC_MISC_CG__MEM_LS_ENABLE_MASK,
 808         MC_CITF_MISC_WR_CG__MEM_LS_ENABLE_MASK,
 809         MC_CITF_MISC_RD_CG__MEM_LS_ENABLE_MASK,
 810         MC_CITF_MISC_VM_CG__MEM_LS_ENABLE_MASK,
 811         VM_L2_CG__MEM_LS_ENABLE_MASK,
 812 };
 813
 814 static const u32 mc_cg_en[] = {
 815         MC_HUB_MISC_HUB_CG__ENABLE_MASK,
 816         MC_HUB_MISC_SIP_CG__ENABLE_MASK,
 817         MC_HUB_MISC_VM_CG__ENABLE_MASK,
 818         MC_XPB_CLK_GAT__ENABLE_MASK,
 819         ATC_MISC_CG__ENABLE_MASK,
 820         MC_CITF_MISC_WR_CG__ENABLE_MASK,
 821         MC_CITF_MISC_RD_CG__ENABLE_MASK,
 822         MC_CITF_MISC_VM_CG__ENABLE_MASK,
 823         VM_L2_CG__ENABLE_MASK,
 824 };
 825
 826 static void gmc_v7_0_enable_mc_ls(struct amdgpu_device *adev,
 827                                   bool enable)
 828 {
 829         int i;
 830         u32 orig, data;
 831
 832         for (i = 0; i < ARRAY_SIZE(mc_cg_registers); i++) {
 833                 orig = data = RREG32(mc_cg_registers[i]);
 834                 if (enable && (adev->cg_flags & AMD_CG_SUPPORT_MC_LS))
 835                         data |= mc_cg_ls_en[i];
 836                 else
 837                         data &= ~mc_cg_ls_en[i];
 838                 if (data != orig)
 839                         WREG32(mc_cg_registers[i], data);
 840         }
 841 }
 842
 843 static void gmc_v7_0_enable_mc_mgcg(struct amdgpu_device *adev,
 844                                     bool enable)
 845 {
 846         int i;
 847         u32 orig, data;
 848
 849         for (i = 0; i < ARRAY_SIZE(mc_cg_registers); i++) {
 850                 orig = data = RREG32(mc_cg_registers[i]);
 851                 if (enable && (adev->cg_flags & AMD_CG_SUPPORT_MC_MGCG))
 852                         data |= mc_cg_en[i];
 853                 else
 854                         data &= ~mc_cg_en[i];
 855                 if (data != orig)
 856                         WREG32(mc_cg_registers[i], data);
 857         }
 858 }
 859
 860 static void gmc_v7_0_enable_bif_mgls(struct amdgpu_device *adev,
 861                                      bool enable)
 862 {
 863         u32 orig, data;
 864
 865         orig = data = RREG32_PCIE(ixPCIE_CNTL2);
 866
 867         if (enable && (adev->cg_flags & AMD_CG_SUPPORT_BIF_LS)) {
 868                 data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_LS_EN, 1);
 869                 data = REG_SET_FIELD(data, PCIE_CNTL2, MST_MEM_LS_EN, 1);
 870                 data = REG_SET_FIELD(data, PCIE_CNTL2, REPLAY_MEM_LS_EN, 1);
 871                 data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_AGGRESSIVE_LS_EN, 1);
 872         } else {
 873                 data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_LS_EN, 0);
 874                 data = REG_SET_FIELD(data, PCIE_CNTL2, MST_MEM_LS_EN, 0);
 875                 data = REG_SET_FIELD(data, PCIE_CNTL2, REPLAY_MEM_LS_EN, 0);
 876                 data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_AGGRESSIVE_LS_EN, 0);
 877         }
 878
 879         if (orig != data)
 880                 WREG32_PCIE(ixPCIE_CNTL2, data);
 881 }
 882
 883 static void gmc_v7_0_enable_hdp_mgcg(struct amdgpu_device *adev,
 884                                      bool enable)
 885 {
 886         u32 orig, data;
 887
 888         orig = data = RREG32(mmHDP_HOST_PATH_CNTL);
 889
 890         if (enable && (adev->cg_flags & AMD_CG_SUPPORT_HDP_MGCG))
 891                 data = REG_SET_FIELD(data, HDP_HOST_PATH_CNTL, CLOCK_GATING_DIS, 0);
 892         else
 893                 data = REG_SET_FIELD(data, HDP_HOST_PATH_CNTL, CLOCK_GATING_DIS, 1);
 894
 895         if (orig != data)
 896                 WREG32(mmHDP_HOST_PATH_CNTL, data);
 897 }
 898
 899 static void gmc_v7_0_enable_hdp_ls(struct amdgpu_device *adev,
 900                                    bool enable)
 901 {
 902         u32 orig, data;
 903
 904         orig = data = RREG32(mmHDP_MEM_POWER_LS);
 905
 906         if (enable && (adev->cg_flags & AMD_CG_SUPPORT_HDP_LS))
 907                 data = REG_SET_FIELD(data, HDP_MEM_POWER_LS, LS_ENABLE, 1);
 908         else
 909                 data = REG_SET_FIELD(data, HDP_MEM_POWER_LS, LS_ENABLE, 0);
 910
 911         if (orig != data)
 912                 WREG32(mmHDP_MEM_POWER_LS, data);
 913 }
 914
 915 static int gmc_v7_0_convert_vram_type(int mc_seq_vram_type)
 916 {
 917         switch (mc_seq_vram_type) {
 918         case MC_SEQ_MISC0__MT__GDDR1:
 919                 return AMDGPU_VRAM_TYPE_GDDR1;
 920         case MC_SEQ_MISC0__MT__DDR2:
 921                 return AMDGPU_VRAM_TYPE_DDR2;
 922         case MC_SEQ_MISC0__MT__GDDR3:
 923                 return AMDGPU_VRAM_TYPE_GDDR3;
 924         case MC_SEQ_MISC0__MT__GDDR4:
 925                 return AMDGPU_VRAM_TYPE_GDDR4;
 926         case MC_SEQ_MISC0__MT__GDDR5:
 927                 return AMDGPU_VRAM_TYPE_GDDR5;
 928         case MC_SEQ_MISC0__MT__HBM:
 929                 return AMDGPU_VRAM_TYPE_HBM;
 930         case MC_SEQ_MISC0__MT__DDR3:
 931                 return AMDGPU_VRAM_TYPE_DDR3;
 932         default:
 933                 return AMDGPU_VRAM_TYPE_UNKNOWN;
 934         }
 935 }
 936
 937 static int gmc_v7_0_early_init(void *handle)
 938 {
 939         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 940
 941         gmc_v7_0_set_gmc_funcs(adev);
 942         gmc_v7_0_set_irq_funcs(adev);
 943
 944         adev->gmc.shared_aperture_start = 0x2000000000000000ULL;
 945         adev->gmc.shared_aperture_end =
 946                 adev->gmc.shared_aperture_start + (4ULL << 30) - 1;
 947         adev->gmc.private_aperture_start =
 948                 adev->gmc.shared_aperture_end + 1;
 949         adev->gmc.private_aperture_end =
 950                 adev->gmc.private_aperture_start + (4ULL << 30) - 1;
 951
 952         return 0;
 953 }
 954
 955 static int gmc_v7_0_late_init(void *handle)
 956 {
 957         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 958
 959         amdgpu_bo_late_init(adev);
 960
 961         if (amdgpu_vm_fault_stop != AMDGPU_VM_FAULT_STOP_ALWAYS)
 962                 return amdgpu_irq_get(adev, &adev->gmc.vm_fault, 0);
 963         else
 964                 return 0;
 965 }
 966
 967 static unsigned gmc_v7_0_get_vbios_fb_size(struct amdgpu_device *adev)
 968 {
 969         u32 d1vga_control = RREG32(mmD1VGA_CONTROL);
 970         unsigned size;
 971
 972         if (REG_GET_FIELD(d1vga_control, D1VGA_CONTROL, D1VGA_MODE_ENABLE)) {
 973                 size = 9 * 1024 * 1024; /* reserve 8MB for vga emulator and 1 MB for FB */
 974         } else {
 975                 u32 viewport = RREG32(mmVIEWPORT_SIZE);
 976                 size = (REG_GET_FIELD(viewport, VIEWPORT_SIZE, VIEWPORT_HEIGHT) *
 977                         REG_GET_FIELD(viewport, VIEWPORT_SIZE, VIEWPORT_WIDTH) *
 978                         4);
 979         }
 980         /* return 0 if the pre-OS buffer uses up most of vram */
 981         if ((adev->gmc.real_vram_size - size) < (8 * 1024 * 1024))
 982                 return 0;
 983         return size;
 984 }
 985
 986 static int gmc_v7_0_sw_init(void *handle)
 987 {
 988         int r;
 989         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 990
 991         adev->num_vmhubs = 1;
 992
 993         if (adev->flags & AMD_IS_APU) {
 994                 adev->gmc.vram_type = AMDGPU_VRAM_TYPE_UNKNOWN;
 995         } else {
 996                 u32 tmp = RREG32(mmMC_SEQ_MISC0);
 997                 tmp &= MC_SEQ_MISC0__MT__MASK;
 998                 adev->gmc.vram_type = gmc_v7_0_convert_vram_type(tmp);
 999         }
1000
1001         r = amdgpu_irq_add_id(adev, AMDGPU_IRQ_CLIENTID_LEGACY, VISLANDS30_IV_SRCID_GFX_PAGE_INV_FAULT, &adev->gmc.vm_fault);
1002         if (r)
1003                 return r;
1004
1005         r = amdgpu_irq_add_id(adev, AMDGPU_IRQ_CLIENTID_LEGACY, VISLANDS30_IV_SRCID_GFX_MEM_PROT_FAULT, &adev->gmc.vm_fault);
1006         if (r)
1007                 return r;
1008
1009         /* Adjust VM size here.
1010          * Currently set to 4GB ((1 << 20) 4k pages).
1011          * Max GPUVM size for cayman and SI is 40 bits.
1012          */
1013         amdgpu_vm_adjust_size(adev, 64, 9, 1, 40);
1014
1015         /* Set the internal MC address mask
1016          * This is the max address of the GPU's
1017          * internal address space.
1018          */
1019         adev->gmc.mc_mask = 0xffffffffffULL; /* 40 bit MC */
1020
1021         r = dma_set_mask_and_coherent(adev->dev, DMA_BIT_MASK(40));
1022         if (r) {
1023                 pr_warn("No suitable DMA available\n");
1024                 return r;
1025         }
1026         adev->need_swiotlb = drm_need_swiotlb(40);
1027
1028         r = gmc_v7_0_init_microcode(adev);
1029         if (r) {
1030                 DRM_ERROR("Failed to load mc firmware!\n");
1031                 return r;
1032         }
1033
1034         r = gmc_v7_0_mc_init(adev);
1035         if (r)
1036                 return r;
1037
1038         adev->gmc.stolen_size = gmc_v7_0_get_vbios_fb_size(adev);
1039
1040         /* Memory manager */
1041         r = amdgpu_bo_init(adev);
1042         if (r)
1043                 return r;
1044
1045         r = gmc_v7_0_gart_init(adev);
1046         if (r)
1047                 return r;
1048
1049         /*
1050          * number of VMs
1051          * VMID 0 is reserved for System
1052          * amdgpu graphics/compute will use VMIDs 1-7
1053          * amdkfd will use VMIDs 8-15
1054          */
1055         adev->vm_manager.first_kfd_vmid = 8;
1056         amdgpu_vm_manager_init(adev);
1057
1058         /* base offset of vram pages */
1059         if (adev->flags & AMD_IS_APU) {
1060                 u64 tmp = RREG32(mmMC_VM_FB_OFFSET);
1061
1062                 tmp <<= 22;
1063                 adev->vm_manager.vram_base_offset = tmp;
1064         } else {
1065                 adev->vm_manager.vram_base_offset = 0;
1066         }
1067
1068         adev->gmc.vm_fault_info = kmalloc(sizeof(struct kfd_vm_fault_info),
1069                                         GFP_KERNEL);
1070         if (!adev->gmc.vm_fault_info)
1071                 return -ENOMEM;
1072         atomic_set(&adev->gmc.vm_fault_info_updated, 0);
1073
1074         return 0;
1075 }
1076
1077 static int gmc_v7_0_sw_fini(void *handle)
1078 {
1079         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1080
1081         amdgpu_gem_force_release(adev);
1082         amdgpu_vm_manager_fini(adev);
1083         kfree(adev->gmc.vm_fault_info);
1084         amdgpu_gart_table_vram_free(adev);
1085         amdgpu_bo_fini(adev);
1086         amdgpu_gart_fini(adev);
1087         release_firmware(adev->gmc.fw);
1088         adev->gmc.fw = NULL;
1089
1090         return 0;
1091 }
1092
1093 static int gmc_v7_0_hw_init(void *handle)
1094 {
1095         int r;
1096         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1097
1098         gmc_v7_0_init_golden_registers(adev);
1099
1100         gmc_v7_0_mc_program(adev);
1101
1102         if (!(adev->flags & AMD_IS_APU)) {
1103                 r = gmc_v7_0_mc_load_microcode(adev);
1104                 if (r) {
1105                         DRM_ERROR("Failed to load MC firmware!\n");
1106                         return r;
1107                 }
1108         }
1109
1110         r = gmc_v7_0_gart_enable(adev);
1111         if (r)
1112                 return r;
1113
1114         return r;
1115 }
1116
1117 static int gmc_v7_0_hw_fini(void *handle)
1118 {
1119         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1120
1121         amdgpu_irq_put(adev, &adev->gmc.vm_fault, 0);
1122         gmc_v7_0_gart_disable(adev);
1123
1124         return 0;
1125 }
1126
1127 static int gmc_v7_0_suspend(void *handle)
1128 {
1129         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1130
1131         gmc_v7_0_hw_fini(adev);
1132
1133         return 0;
1134 }
1135
1136 static int gmc_v7_0_resume(void *handle)
1137 {
1138         int r;
1139         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1140
1141         r = gmc_v7_0_hw_init(adev);
1142         if (r)
1143                 return r;
1144
1145         amdgpu_vmid_reset_all(adev);
1146
1147         return 0;
1148 }
1149
1150 static bool gmc_v7_0_is_idle(void *handle)
1151 {
1152         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1153         u32 tmp = RREG32(mmSRBM_STATUS);
1154
1155         if (tmp & (SRBM_STATUS__MCB_BUSY_MASK | SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK |
1156                    SRBM_STATUS__MCC_BUSY_MASK | SRBM_STATUS__MCD_BUSY_MASK | SRBM_STATUS__VMC_BUSY_MASK))
1157                 return false;
1158
1159         return true;
1160 }
1161
1162 static int gmc_v7_0_wait_for_idle(void *handle)
1163 {
1164         unsigned i;
1165         u32 tmp;
1166         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1167
1168         for (i = 0; i < adev->usec_timeout; i++) {
1169                 /* read MC_STATUS */
1170                 tmp = RREG32(mmSRBM_STATUS) & (SRBM_STATUS__MCB_BUSY_MASK |
1171                                                SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK |
1172                                                SRBM_STATUS__MCC_BUSY_MASK |
1173                                                SRBM_STATUS__MCD_BUSY_MASK |
1174                                                SRBM_STATUS__VMC_BUSY_MASK);
1175                 if (!tmp)
1176                         return 0;
1177                 udelay(1);
1178         }
1179         return -ETIMEDOUT;
1180
1181 }
1182
1183 static int gmc_v7_0_soft_reset(void *handle)
1184 {
1185         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1186         u32 srbm_soft_reset = 0;
1187         u32 tmp = RREG32(mmSRBM_STATUS);
1188
1189         if (tmp & SRBM_STATUS__VMC_BUSY_MASK)
1190                 srbm_soft_reset = REG_SET_FIELD(srbm_soft_reset,
1191                                                 SRBM_SOFT_RESET, SOFT_RESET_VMC, 1);
1192
1193         if (tmp & (SRBM_STATUS__MCB_BUSY_MASK | SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK |
1194                    SRBM_STATUS__MCC_BUSY_MASK | SRBM_STATUS__MCD_BUSY_MASK)) {
1195                 if (!(adev->flags & AMD_IS_APU))
1196                         srbm_soft_reset = REG_SET_FIELD(srbm_soft_reset,
1197                                                         SRBM_SOFT_RESET, SOFT_RESET_MC, 1);
1198         }
1199
1200         if (srbm_soft_reset) {
1201                 gmc_v7_0_mc_stop(adev);
1202                 if (gmc_v7_0_wait_for_idle((void *)adev)) {
1203                         dev_warn(adev->dev, "Wait for GMC idle timed out !\n");
1204                 }
1205
1206
1207                 tmp = RREG32(mmSRBM_SOFT_RESET);
1208                 tmp |= srbm_soft_reset;
1209                 dev_info(adev->dev, "SRBM_SOFT_RESET=0x%08X\n", tmp);
1210                 WREG32(mmSRBM_SOFT_RESET, tmp);
1211                 tmp = RREG32(mmSRBM_SOFT_RESET);
1212
1213                 udelay(50);
1214
1215                 tmp &= ~srbm_soft_reset;
1216                 WREG32(mmSRBM_SOFT_RESET, tmp);
1217                 tmp = RREG32(mmSRBM_SOFT_RESET);
1218
1219                 /* Wait a little for things to settle down */
1220                 udelay(50);
1221
1222                 gmc_v7_0_mc_resume(adev);
1223                 udelay(50);
1224         }
1225
1226         return 0;
1227 }
1228
1229 static int gmc_v7_0_vm_fault_interrupt_state(struct amdgpu_device *adev,
1230                                              struct amdgpu_irq_src *src,
1231                                              unsigned type,
1232                                              enum amdgpu_interrupt_state state)
1233 {
1234         u32 tmp;
1235         u32 bits = (VM_CONTEXT1_CNTL__RANGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1236                     VM_CONTEXT1_CNTL__DUMMY_PAGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1237                     VM_CONTEXT1_CNTL__PDE0_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1238                     VM_CONTEXT1_CNTL__VALID_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1239                     VM_CONTEXT1_CNTL__READ_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1240                     VM_CONTEXT1_CNTL__WRITE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK);
1241
1242         switch (state) {
1243         case AMDGPU_IRQ_STATE_DISABLE:
1244                 /* system context */
1245                 tmp = RREG32(mmVM_CONTEXT0_CNTL);
1246                 tmp &= ~bits;
1247                 WREG32(mmVM_CONTEXT0_CNTL, tmp);
1248                 /* VMs */
1249                 tmp = RREG32(mmVM_CONTEXT1_CNTL);
1250                 tmp &= ~bits;
1251                 WREG32(mmVM_CONTEXT1_CNTL, tmp);
1252                 break;
1253         case AMDGPU_IRQ_STATE_ENABLE:
1254                 /* system context */
1255                 tmp = RREG32(mmVM_CONTEXT0_CNTL);
1256                 tmp |= bits;
1257                 WREG32(mmVM_CONTEXT0_CNTL, tmp);
1258                 /* VMs */
1259                 tmp = RREG32(mmVM_CONTEXT1_CNTL);
1260                 tmp |= bits;
1261                 WREG32(mmVM_CONTEXT1_CNTL, tmp);
1262                 break;
1263         default:
1264                 break;
1265         }
1266
1267         return 0;
1268 }
1269
1270 static int gmc_v7_0_process_interrupt(struct amdgpu_device *adev,
1271                                       struct amdgpu_irq_src *source,
1272                                       struct amdgpu_iv_entry *entry)
1273 {
1274         u32 addr, status, mc_client, vmid;
1275
1276         addr = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_ADDR);
1277         status = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_STATUS);
1278         mc_client = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_MCCLIENT);
1279         /* reset addr and status */
1280         WREG32_P(mmVM_CONTEXT1_CNTL2, 1, ~1);
1281
1282         if (!addr && !status)
1283                 return 0;
1284
1285         if (amdgpu_vm_fault_stop == AMDGPU_VM_FAULT_STOP_FIRST)
1286                 gmc_v7_0_set_fault_enable_default(adev, false);
1287
1288         if (printk_ratelimit()) {
1289                 dev_err(adev->dev, "GPU fault detected: %d 0x%08x\n",
1290                         entry->src_id, entry->src_data[0]);
1291                 dev_err(adev->dev, "  VM_CONTEXT1_PROTECTION_FAULT_ADDR   0x%08X\n",
1292                         addr);
1293                 dev_err(adev->dev, "  VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x%08X\n",
1294                         status);
1295                 gmc_v7_0_vm_decode_fault(adev, status, addr, mc_client,
1296                                          entry->pasid);
1297         }
1298
1299         vmid = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS,
1300                              VMID);
1301         if (amdgpu_amdkfd_is_kfd_vmid(adev, vmid)
1302                 && !atomic_read(&adev->gmc.vm_fault_info_updated)) {
1303                 struct kfd_vm_fault_info *info = adev->gmc.vm_fault_info;
1304                 u32 protections = REG_GET_FIELD(status,
1305                                         VM_CONTEXT1_PROTECTION_FAULT_STATUS,
1306                                         PROTECTIONS);
1307
1308                 info->vmid = vmid;
1309                 info->mc_id = REG_GET_FIELD(status,
1310                                             VM_CONTEXT1_PROTECTION_FAULT_STATUS,
1311                                             MEMORY_CLIENT_ID);
1312                 info->status = status;
1313                 info->page_addr = addr;
1314                 info->prot_valid = protections & 0x7 ? true : false;
1315                 info->prot_read = protections & 0x8 ? true : false;
1316                 info->prot_write = protections & 0x10 ? true : false;
1317                 info->prot_exec = protections & 0x20 ? true : false;
1318                 mb();
1319                 atomic_set(&adev->gmc.vm_fault_info_updated, 1);
1320         }
1321
1322         return 0;
1323 }
1324
1325 static int gmc_v7_0_set_clockgating_state(void *handle,
1326                                           enum amd_clockgating_state state)
1327 {
1328         bool gate = false;
1329         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1330
1331         if (state == AMD_CG_STATE_GATE)
1332                 gate = true;
1333
1334         if (!(adev->flags & AMD_IS_APU)) {
1335                 gmc_v7_0_enable_mc_mgcg(adev, gate);
1336                 gmc_v7_0_enable_mc_ls(adev, gate);
1337         }
1338         gmc_v7_0_enable_bif_mgls(adev, gate);
1339         gmc_v7_0_enable_hdp_mgcg(adev, gate);
1340         gmc_v7_0_enable_hdp_ls(adev, gate);
1341
1342         return 0;
1343 }
1344
1345 static int gmc_v7_0_set_powergating_state(void *handle,
1346                                           enum amd_powergating_state state)
1347 {
1348         return 0;
1349 }
1350
1351 static const struct amd_ip_funcs gmc_v7_0_ip_funcs = {
1352         .name = "gmc_v7_0",
1353         .early_init = gmc_v7_0_early_init,
1354         .late_init = gmc_v7_0_late_init,
1355         .sw_init = gmc_v7_0_sw_init,
1356         .sw_fini = gmc_v7_0_sw_fini,
1357         .hw_init = gmc_v7_0_hw_init,
1358         .hw_fini = gmc_v7_0_hw_fini,
1359         .suspend = gmc_v7_0_suspend,
1360         .resume = gmc_v7_0_resume,
1361         .is_idle = gmc_v7_0_is_idle,
1362         .wait_for_idle = gmc_v7_0_wait_for_idle,
1363         .soft_reset = gmc_v7_0_soft_reset,
1364         .set_clockgating_state = gmc_v7_0_set_clockgating_state,
1365         .set_powergating_state = gmc_v7_0_set_powergating_state,
1366 };
1367
1368 static const struct amdgpu_gmc_funcs gmc_v7_0_gmc_funcs = {
1369         .flush_gpu_tlb = gmc_v7_0_flush_gpu_tlb,
1370         .flush_gpu_tlb_pasid = gmc_v7_0_flush_gpu_tlb_pasid,
1371         .emit_flush_gpu_tlb = gmc_v7_0_emit_flush_gpu_tlb,
1372         .emit_pasid_mapping = gmc_v7_0_emit_pasid_mapping,
1373         .set_prt = gmc_v7_0_set_prt,
1374         .get_vm_pde = gmc_v7_0_get_vm_pde,
1375         .get_vm_pte = gmc_v7_0_get_vm_pte
1376 };
1377
1378 static const struct amdgpu_irq_src_funcs gmc_v7_0_irq_funcs = {
1379         .set = gmc_v7_0_vm_fault_interrupt_state,
1380         .process = gmc_v7_0_process_interrupt,
1381 };
1382
1383 static void gmc_v7_0_set_gmc_funcs(struct amdgpu_device *adev)
1384 {
1385         adev->gmc.gmc_funcs = &gmc_v7_0_gmc_funcs;
1386 }
1387
1388 static void gmc_v7_0_set_irq_funcs(struct amdgpu_device *adev)
1389 {
1390         adev->gmc.vm_fault.num_types = 1;
1391         adev->gmc.vm_fault.funcs = &gmc_v7_0_irq_funcs;
1392 }
1393
1394 const struct amdgpu_ip_block_version gmc_v7_0_ip_block =
1395 {
1396         .type = AMD_IP_BLOCK_TYPE_GMC,
1397         .major = 7,
1398         .minor = 0,
1399         .rev = 0,
1400         .funcs = &gmc_v7_0_ip_funcs,
1401 };
1402
1403 const struct amdgpu_ip_block_version gmc_v7_4_ip_block =
1404 {
1405         .type = AMD_IP_BLOCK_TYPE_GMC,
1406         .major = 7,
1407         .minor = 4,
1408         .rev = 0,
1409         .funcs = &gmc_v7_0_ip_funcs,
1410 };