drivers/gpu/drm/amd/amdgpu/gmc_v8_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 "drmP.h"
  25 #include "amdgpu.h"
  26 #include "gmc_v8_0.h"
  27 #include "amdgpu_ucode.h"
  28
  29 #include "gmc/gmc_8_1_d.h"
  30 #include "gmc/gmc_8_1_sh_mask.h"
  31
  32 #include "bif/bif_5_0_d.h"
  33 #include "bif/bif_5_0_sh_mask.h"
  34
  35 #include "oss/oss_3_0_d.h"
  36 #include "oss/oss_3_0_sh_mask.h"
  37
  38 #include "vid.h"
  39 #include "vi.h"
  40
  41
  42 static void gmc_v8_0_set_gart_funcs(struct amdgpu_device *adev);
  43 static void gmc_v8_0_set_irq_funcs(struct amdgpu_device *adev);
  44
  45 MODULE_FIRMWARE("amdgpu/topaz_mc.bin");
  46 MODULE_FIRMWARE("amdgpu/tonga_mc.bin");
  47 MODULE_FIRMWARE("amdgpu/fiji_mc.bin");
  48
  49 static const u32 golden_settings_tonga_a11[] =
  50 {
  51         mmMC_ARB_WTM_GRPWT_RD, 0x00000003, 0x00000000,
  52         mmMC_HUB_RDREQ_DMIF_LIMIT, 0x0000007f, 0x00000028,
  53         mmMC_HUB_WDP_UMC, 0x00007fb6, 0x00000991,
  54         mmVM_PRT_APERTURE0_LOW_ADDR, 0x0fffffff, 0x0fffffff,
  55         mmVM_PRT_APERTURE1_LOW_ADDR, 0x0fffffff, 0x0fffffff,
  56         mmVM_PRT_APERTURE2_LOW_ADDR, 0x0fffffff, 0x0fffffff,
  57         mmVM_PRT_APERTURE3_LOW_ADDR, 0x0fffffff, 0x0fffffff,
  58 };
  59
  60 static const u32 tonga_mgcg_cgcg_init[] =
  61 {
  62         mmMC_MEM_POWER_LS, 0xffffffff, 0x00000104
  63 };
  64
  65 static const u32 golden_settings_fiji_a10[] =
  66 {
  67         mmVM_PRT_APERTURE0_LOW_ADDR, 0x0fffffff, 0x0fffffff,
  68         mmVM_PRT_APERTURE1_LOW_ADDR, 0x0fffffff, 0x0fffffff,
  69         mmVM_PRT_APERTURE2_LOW_ADDR, 0x0fffffff, 0x0fffffff,
  70         mmVM_PRT_APERTURE3_LOW_ADDR, 0x0fffffff, 0x0fffffff,
  71 };
  72
  73 static const u32 fiji_mgcg_cgcg_init[] =
  74 {
  75         mmMC_MEM_POWER_LS, 0xffffffff, 0x00000104
  76 };
  77
  78 static const u32 golden_settings_iceland_a11[] =
  79 {
  80         mmVM_PRT_APERTURE0_LOW_ADDR, 0x0fffffff, 0x0fffffff,
  81         mmVM_PRT_APERTURE1_LOW_ADDR, 0x0fffffff, 0x0fffffff,
  82         mmVM_PRT_APERTURE2_LOW_ADDR, 0x0fffffff, 0x0fffffff,
  83         mmVM_PRT_APERTURE3_LOW_ADDR, 0x0fffffff, 0x0fffffff
  84 };
  85
  86 static const u32 iceland_mgcg_cgcg_init[] =
  87 {
  88         mmMC_MEM_POWER_LS, 0xffffffff, 0x00000104
  89 };
  90
  91 static const u32 cz_mgcg_cgcg_init[] =
  92 {
  93         mmMC_MEM_POWER_LS, 0xffffffff, 0x00000104
  94 };
  95
  96 static const u32 stoney_mgcg_cgcg_init[] =
  97 {
  98         mmMC_MEM_POWER_LS, 0xffffffff, 0x00000104
  99 };
 100
 101
 102 static void gmc_v8_0_init_golden_registers(struct amdgpu_device *adev)
 103 {
 104         switch (adev->asic_type) {
 105         case CHIP_TOPAZ:
 106                 amdgpu_program_register_sequence(adev,
 107                                                  iceland_mgcg_cgcg_init,
 108                                                  (const u32)ARRAY_SIZE(iceland_mgcg_cgcg_init));
 109                 amdgpu_program_register_sequence(adev,
 110                                                  golden_settings_iceland_a11,
 111                                                  (const u32)ARRAY_SIZE(golden_settings_iceland_a11));
 112                 break;
 113         case CHIP_FIJI:
 114                 amdgpu_program_register_sequence(adev,
 115                                                  fiji_mgcg_cgcg_init,
 116                                                  (const u32)ARRAY_SIZE(fiji_mgcg_cgcg_init));
 117                 amdgpu_program_register_sequence(adev,
 118                                                  golden_settings_fiji_a10,
 119                                                  (const u32)ARRAY_SIZE(golden_settings_fiji_a10));
 120                 break;
 121         case CHIP_TONGA:
 122                 amdgpu_program_register_sequence(adev,
 123                                                  tonga_mgcg_cgcg_init,
 124                                                  (const u32)ARRAY_SIZE(tonga_mgcg_cgcg_init));
 125                 amdgpu_program_register_sequence(adev,
 126                                                  golden_settings_tonga_a11,
 127                                                  (const u32)ARRAY_SIZE(golden_settings_tonga_a11));
 128                 break;
 129         case CHIP_CARRIZO:
 130                 amdgpu_program_register_sequence(adev,
 131                                                  cz_mgcg_cgcg_init,
 132                                                  (const u32)ARRAY_SIZE(cz_mgcg_cgcg_init));
 133                 break;
 134         case CHIP_STONEY:
 135                 amdgpu_program_register_sequence(adev,
 136                                                  stoney_mgcg_cgcg_init,
 137                                                  (const u32)ARRAY_SIZE(stoney_mgcg_cgcg_init));
 138                 break;
 139         default:
 140                 break;
 141         }
 142 }
 143
 144 /**
 145  * gmc8_mc_wait_for_idle - wait for MC idle callback.
 146  *
 147  * @adev: amdgpu_device pointer
 148  *
 149  * Wait for the MC (memory controller) to be idle.
 150  * (evergreen+).
 151  * Returns 0 if the MC is idle, -1 if not.
 152  */
 153 int gmc_v8_0_mc_wait_for_idle(struct amdgpu_device *adev)
 154 {
 155         unsigned i;
 156         u32 tmp;
 157
 158         for (i = 0; i < adev->usec_timeout; i++) {
 159                 /* read MC_STATUS */
 160                 tmp = RREG32(mmSRBM_STATUS) & (SRBM_STATUS__VMC_BUSY_MASK |
 161                                                SRBM_STATUS__MCB_BUSY_MASK |
 162                                                SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK |
 163                                                SRBM_STATUS__MCC_BUSY_MASK |
 164                                                SRBM_STATUS__MCD_BUSY_MASK |
 165                                                SRBM_STATUS__VMC1_BUSY_MASK);
 166                 if (!tmp)
 167                         return 0;
 168                 udelay(1);
 169         }
 170         return -1;
 171 }
 172
 173 void gmc_v8_0_mc_stop(struct amdgpu_device *adev,
 174                       struct amdgpu_mode_mc_save *save)
 175 {
 176         u32 blackout;
 177
 178         if (adev->mode_info.num_crtc)
 179                 amdgpu_display_stop_mc_access(adev, save);
 180
 181         amdgpu_asic_wait_for_mc_idle(adev);
 182
 183         blackout = RREG32(mmMC_SHARED_BLACKOUT_CNTL);
 184         if (REG_GET_FIELD(blackout, MC_SHARED_BLACKOUT_CNTL, BLACKOUT_MODE) != 1) {
 185                 /* Block CPU access */
 186                 WREG32(mmBIF_FB_EN, 0);
 187                 /* blackout the MC */
 188                 blackout = REG_SET_FIELD(blackout,
 189                                          MC_SHARED_BLACKOUT_CNTL, BLACKOUT_MODE, 1);
 190                 WREG32(mmMC_SHARED_BLACKOUT_CNTL, blackout);
 191         }
 192         /* wait for the MC to settle */
 193         udelay(100);
 194 }
 195
 196 void gmc_v8_0_mc_resume(struct amdgpu_device *adev,
 197                         struct amdgpu_mode_mc_save *save)
 198 {
 199         u32 tmp;
 200
 201         /* unblackout the MC */
 202         tmp = RREG32(mmMC_SHARED_BLACKOUT_CNTL);
 203         tmp = REG_SET_FIELD(tmp, MC_SHARED_BLACKOUT_CNTL, BLACKOUT_MODE, 0);
 204         WREG32(mmMC_SHARED_BLACKOUT_CNTL, tmp);
 205         /* allow CPU access */
 206         tmp = REG_SET_FIELD(0, BIF_FB_EN, FB_READ_EN, 1);
 207         tmp = REG_SET_FIELD(tmp, BIF_FB_EN, FB_WRITE_EN, 1);
 208         WREG32(mmBIF_FB_EN, tmp);
 209
 210         if (adev->mode_info.num_crtc)
 211                 amdgpu_display_resume_mc_access(adev, save);
 212 }
 213
 214 /**
 215  * gmc_v8_0_init_microcode - load ucode images from disk
 216  *
 217  * @adev: amdgpu_device pointer
 218  *
 219  * Use the firmware interface to load the ucode images into
 220  * the driver (not loaded into hw).
 221  * Returns 0 on success, error on failure.
 222  */
 223 static int gmc_v8_0_init_microcode(struct amdgpu_device *adev)
 224 {
 225         const char *chip_name;
 226         char fw_name[30];
 227         int err;
 228
 229         DRM_DEBUG("\n");
 230
 231         switch (adev->asic_type) {
 232         case CHIP_TOPAZ:
 233                 chip_name = "topaz";
 234                 break;
 235         case CHIP_TONGA:
 236                 chip_name = "tonga";
 237                 break;
 238         case CHIP_FIJI:
 239                 chip_name = "fiji";
 240                 break;
 241         case CHIP_CARRIZO:
 242         case CHIP_STONEY:
 243                 return 0;
 244         default: BUG();
 245         }
 246
 247         snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_mc.bin", chip_name);
 248         err = request_firmware(&adev->mc.fw, fw_name, adev->dev);
 249         if (err)
 250                 goto out;
 251         err = amdgpu_ucode_validate(adev->mc.fw);
 252
 253 out:
 254         if (err) {
 255                 printk(KERN_ERR
 256                        "mc: Failed to load firmware \"%s\"\n",
 257                        fw_name);
 258                 release_firmware(adev->mc.fw);
 259                 adev->mc.fw = NULL;
 260         }
 261         return err;
 262 }
 263
 264 /**
 265  * gmc_v8_0_mc_load_microcode - load MC ucode into the hw
 266  *
 267  * @adev: amdgpu_device pointer
 268  *
 269  * Load the GDDR MC ucode into the hw (CIK).
 270  * Returns 0 on success, error on failure.
 271  */
 272 static int gmc_v8_0_mc_load_microcode(struct amdgpu_device *adev)
 273 {
 274         const struct mc_firmware_header_v1_0 *hdr;
 275         const __le32 *fw_data = NULL;
 276         const __le32 *io_mc_regs = NULL;
 277         u32 running, blackout = 0;
 278         int i, ucode_size, regs_size;
 279
 280         if (!adev->mc.fw)
 281                 return -EINVAL;
 282
 283         hdr = (const struct mc_firmware_header_v1_0 *)adev->mc.fw->data;
 284         amdgpu_ucode_print_mc_hdr(&hdr->header);
 285
 286         adev->mc.fw_version = le32_to_cpu(hdr->header.ucode_version);
 287         regs_size = le32_to_cpu(hdr->io_debug_size_bytes) / (4 * 2);
 288         io_mc_regs = (const __le32 *)
 289                 (adev->mc.fw->data + le32_to_cpu(hdr->io_debug_array_offset_bytes));
 290         ucode_size = le32_to_cpu(hdr->header.ucode_size_bytes) / 4;
 291         fw_data = (const __le32 *)
 292                 (adev->mc.fw->data + le32_to_cpu(hdr->header.ucode_array_offset_bytes));
 293
 294         running = REG_GET_FIELD(RREG32(mmMC_SEQ_SUP_CNTL), MC_SEQ_SUP_CNTL, RUN);
 295
 296         if (running == 0) {
 297                 if (running) {
 298                         blackout = RREG32(mmMC_SHARED_BLACKOUT_CNTL);
 299                         WREG32(mmMC_SHARED_BLACKOUT_CNTL, blackout | 1);
 300                 }
 301
 302                 /* reset the engine and set to writable */
 303                 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000008);
 304                 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000010);
 305
 306                 /* load mc io regs */
 307                 for (i = 0; i < regs_size; i++) {
 308                         WREG32(mmMC_SEQ_IO_DEBUG_INDEX, le32_to_cpup(io_mc_regs++));
 309                         WREG32(mmMC_SEQ_IO_DEBUG_DATA, le32_to_cpup(io_mc_regs++));
 310                 }
 311                 /* load the MC ucode */
 312                 for (i = 0; i < ucode_size; i++)
 313                         WREG32(mmMC_SEQ_SUP_PGM, le32_to_cpup(fw_data++));
 314
 315                 /* put the engine back into the active state */
 316                 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000008);
 317                 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000004);
 318                 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000001);
 319
 320                 /* wait for training to complete */
 321                 for (i = 0; i < adev->usec_timeout; i++) {
 322                         if (REG_GET_FIELD(RREG32(mmMC_SEQ_TRAIN_WAKEUP_CNTL),
 323                                           MC_SEQ_TRAIN_WAKEUP_CNTL, TRAIN_DONE_D0))
 324                                 break;
 325                         udelay(1);
 326                 }
 327                 for (i = 0; i < adev->usec_timeout; i++) {
 328                         if (REG_GET_FIELD(RREG32(mmMC_SEQ_TRAIN_WAKEUP_CNTL),
 329                                           MC_SEQ_TRAIN_WAKEUP_CNTL, TRAIN_DONE_D1))
 330                                 break;
 331                         udelay(1);
 332                 }
 333
 334                 if (running)
 335                         WREG32(mmMC_SHARED_BLACKOUT_CNTL, blackout);
 336         }
 337
 338         return 0;
 339 }
 340
 341 static void gmc_v8_0_vram_gtt_location(struct amdgpu_device *adev,
 342                                        struct amdgpu_mc *mc)
 343 {
 344         if (mc->mc_vram_size > 0xFFC0000000ULL) {
 345                 /* leave room for at least 1024M GTT */
 346                 dev_warn(adev->dev, "limiting VRAM\n");
 347                 mc->real_vram_size = 0xFFC0000000ULL;
 348                 mc->mc_vram_size = 0xFFC0000000ULL;
 349         }
 350         amdgpu_vram_location(adev, &adev->mc, 0);
 351         adev->mc.gtt_base_align = 0;
 352         amdgpu_gtt_location(adev, mc);
 353 }
 354
 355 /**
 356  * gmc_v8_0_mc_program - program the GPU memory controller
 357  *
 358  * @adev: amdgpu_device pointer
 359  *
 360  * Set the location of vram, gart, and AGP in the GPU's
 361  * physical address space (CIK).
 362  */
 363 static void gmc_v8_0_mc_program(struct amdgpu_device *adev)
 364 {
 365         struct amdgpu_mode_mc_save save;
 366         u32 tmp;
 367         int i, j;
 368
 369         /* Initialize HDP */
 370         for (i = 0, j = 0; i < 32; i++, j += 0x6) {
 371                 WREG32((0xb05 + j), 0x00000000);
 372                 WREG32((0xb06 + j), 0x00000000);
 373                 WREG32((0xb07 + j), 0x00000000);
 374                 WREG32((0xb08 + j), 0x00000000);
 375                 WREG32((0xb09 + j), 0x00000000);
 376         }
 377         WREG32(mmHDP_REG_COHERENCY_FLUSH_CNTL, 0);
 378
 379         if (adev->mode_info.num_crtc)
 380                 amdgpu_display_set_vga_render_state(adev, false);
 381
 382         gmc_v8_0_mc_stop(adev, &save);
 383         if (amdgpu_asic_wait_for_mc_idle(adev)) {
 384                 dev_warn(adev->dev, "Wait for MC idle timedout !\n");
 385         }
 386         /* Update configuration */
 387         WREG32(mmMC_VM_SYSTEM_APERTURE_LOW_ADDR,
 388                adev->mc.vram_start >> 12);
 389         WREG32(mmMC_VM_SYSTEM_APERTURE_HIGH_ADDR,
 390                adev->mc.vram_end >> 12);
 391         WREG32(mmMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR,
 392                adev->vram_scratch.gpu_addr >> 12);
 393         tmp = ((adev->mc.vram_end >> 24) & 0xFFFF) << 16;
 394         tmp |= ((adev->mc.vram_start >> 24) & 0xFFFF);
 395         WREG32(mmMC_VM_FB_LOCATION, tmp);
 396         /* XXX double check these! */
 397         WREG32(mmHDP_NONSURFACE_BASE, (adev->mc.vram_start >> 8));
 398         WREG32(mmHDP_NONSURFACE_INFO, (2 << 7) | (1 << 30));
 399         WREG32(mmHDP_NONSURFACE_SIZE, 0x3FFFFFFF);
 400         WREG32(mmMC_VM_AGP_BASE, 0);
 401         WREG32(mmMC_VM_AGP_TOP, 0x0FFFFFFF);
 402         WREG32(mmMC_VM_AGP_BOT, 0x0FFFFFFF);
 403         if (amdgpu_asic_wait_for_mc_idle(adev)) {
 404                 dev_warn(adev->dev, "Wait for MC idle timedout !\n");
 405         }
 406         gmc_v8_0_mc_resume(adev, &save);
 407
 408         WREG32(mmBIF_FB_EN, BIF_FB_EN__FB_READ_EN_MASK | BIF_FB_EN__FB_WRITE_EN_MASK);
 409
 410         tmp = RREG32(mmHDP_MISC_CNTL);
 411         tmp = REG_SET_FIELD(tmp, HDP_MISC_CNTL, FLUSH_INVALIDATE_CACHE, 1);
 412         WREG32(mmHDP_MISC_CNTL, tmp);
 413
 414         tmp = RREG32(mmHDP_HOST_PATH_CNTL);
 415         WREG32(mmHDP_HOST_PATH_CNTL, tmp);
 416 }
 417
 418 /**
 419  * gmc_v8_0_mc_init - initialize the memory controller driver params
 420  *
 421  * @adev: amdgpu_device pointer
 422  *
 423  * Look up the amount of vram, vram width, and decide how to place
 424  * vram and gart within the GPU's physical address space (CIK).
 425  * Returns 0 for success.
 426  */
 427 static int gmc_v8_0_mc_init(struct amdgpu_device *adev)
 428 {
 429         u32 tmp;
 430         int chansize, numchan;
 431
 432         /* Get VRAM informations */
 433         tmp = RREG32(mmMC_ARB_RAMCFG);
 434         if (REG_GET_FIELD(tmp, MC_ARB_RAMCFG, CHANSIZE)) {
 435                 chansize = 64;
 436         } else {
 437                 chansize = 32;
 438         }
 439         tmp = RREG32(mmMC_SHARED_CHMAP);
 440         switch (REG_GET_FIELD(tmp, MC_SHARED_CHMAP, NOOFCHAN)) {
 441         case 0:
 442         default:
 443                 numchan = 1;
 444                 break;
 445         case 1:
 446                 numchan = 2;
 447                 break;
 448         case 2:
 449                 numchan = 4;
 450                 break;
 451         case 3:
 452                 numchan = 8;
 453                 break;
 454         case 4:
 455                 numchan = 3;
 456                 break;
 457         case 5:
 458                 numchan = 6;
 459                 break;
 460         case 6:
 461                 numchan = 10;
 462                 break;
 463         case 7:
 464                 numchan = 12;
 465                 break;
 466         case 8:
 467                 numchan = 16;
 468                 break;
 469         }
 470         adev->mc.vram_width = numchan * chansize;
 471         /* Could aper size report 0 ? */
 472         adev->mc.aper_base = pci_resource_start(adev->pdev, 0);
 473         adev->mc.aper_size = pci_resource_len(adev->pdev, 0);
 474         /* size in MB on si */
 475         adev->mc.mc_vram_size = RREG32(mmCONFIG_MEMSIZE) * 1024ULL * 1024ULL;
 476         adev->mc.real_vram_size = RREG32(mmCONFIG_MEMSIZE) * 1024ULL * 1024ULL;
 477         adev->mc.visible_vram_size = adev->mc.aper_size;
 478
 479         /* In case the PCI BAR is larger than the actual amount of vram */
 480         if (adev->mc.visible_vram_size > adev->mc.real_vram_size)
 481                 adev->mc.visible_vram_size = adev->mc.real_vram_size;
 482
 483         /* unless the user had overridden it, set the gart
 484          * size equal to the 1024 or vram, whichever is larger.
 485          */
 486         if (amdgpu_gart_size == -1)
 487                 adev->mc.gtt_size = max((1024ULL << 20), adev->mc.mc_vram_size);
 488         else
 489                 adev->mc.gtt_size = (uint64_t)amdgpu_gart_size << 20;
 490
 491         gmc_v8_0_vram_gtt_location(adev, &adev->mc);
 492
 493         return 0;
 494 }
 495
 496 /*
 497  * GART
 498  * VMID 0 is the physical GPU addresses as used by the kernel.
 499  * VMIDs 1-15 are used for userspace clients and are handled
 500  * by the amdgpu vm/hsa code.
 501  */
 502
 503 /**
 504  * gmc_v8_0_gart_flush_gpu_tlb - gart tlb flush callback
 505  *
 506  * @adev: amdgpu_device pointer
 507  * @vmid: vm instance to flush
 508  *
 509  * Flush the TLB for the requested page table (CIK).
 510  */
 511 static void gmc_v8_0_gart_flush_gpu_tlb(struct amdgpu_device *adev,
 512                                         uint32_t vmid)
 513 {
 514         /* flush hdp cache */
 515         WREG32(mmHDP_MEM_COHERENCY_FLUSH_CNTL, 0);
 516
 517         /* bits 0-15 are the VM contexts0-15 */
 518         WREG32(mmVM_INVALIDATE_REQUEST, 1 << vmid);
 519 }
 520
 521 /**
 522  * gmc_v8_0_gart_set_pte_pde - update the page tables using MMIO
 523  *
 524  * @adev: amdgpu_device pointer
 525  * @cpu_pt_addr: cpu address of the page table
 526  * @gpu_page_idx: entry in the page table to update
 527  * @addr: dst addr to write into pte/pde
 528  * @flags: access flags
 529  *
 530  * Update the page tables using the CPU.
 531  */
 532 static int gmc_v8_0_gart_set_pte_pde(struct amdgpu_device *adev,
 533                                      void *cpu_pt_addr,
 534                                      uint32_t gpu_page_idx,
 535                                      uint64_t addr,
 536                                      uint32_t flags)
 537 {
 538         void __iomem *ptr = (void *)cpu_pt_addr;
 539         uint64_t value;
 540
 541         /*
 542          * PTE format on VI:
 543          * 63:40 reserved
 544          * 39:12 4k physical page base address
 545          * 11:7 fragment
 546          * 6 write
 547          * 5 read
 548          * 4 exe
 549          * 3 reserved
 550          * 2 snooped
 551          * 1 system
 552          * 0 valid
 553          *
 554          * PDE format on VI:
 555          * 63:59 block fragment size
 556          * 58:40 reserved
 557          * 39:1 physical base address of PTE
 558          * bits 5:1 must be 0.
 559          * 0 valid
 560          */
 561         value = addr & 0x000000FFFFFFF000ULL;
 562         value |= flags;
 563         writeq(value, ptr + (gpu_page_idx * 8));
 564
 565         return 0;
 566 }
 567
 568 /**
 569  * gmc_v8_0_set_fault_enable_default - update VM fault handling
 570  *
 571  * @adev: amdgpu_device pointer
 572  * @value: true redirects VM faults to the default page
 573  */
 574 static void gmc_v8_0_set_fault_enable_default(struct amdgpu_device *adev,
 575                                               bool value)
 576 {
 577         u32 tmp;
 578
 579         tmp = RREG32(mmVM_CONTEXT1_CNTL);
 580         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 581                             RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 582         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 583                             DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 584         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 585                             PDE0_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 586         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 587                             VALID_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 588         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 589                             READ_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 590         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 591                             WRITE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 592         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 593                             EXECUTE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 594         WREG32(mmVM_CONTEXT1_CNTL, tmp);
 595 }
 596
 597 /**
 598  * gmc_v8_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_v8_0_gart_enable(struct amdgpu_device *adev)
 609 {
 610         int r, i;
 611         u32 tmp;
 612
 613         if (adev->gart.robj == NULL) {
 614                 dev_err(adev->dev, "No VRAM object for PCIE GART.\n");
 615                 return -EINVAL;
 616         }
 617         r = amdgpu_gart_table_vram_pin(adev);
 618         if (r)
 619                 return r;
 620         /* Setup TLB control */
 621         tmp = RREG32(mmMC_VM_MX_L1_TLB_CNTL);
 622         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 1);
 623         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_FRAGMENT_PROCESSING, 1);
 624         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, SYSTEM_ACCESS_MODE, 3);
 625         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_ADVANCED_DRIVER_MODEL, 1);
 626         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, SYSTEM_APERTURE_UNMAPPED_ACCESS, 0);
 627         WREG32(mmMC_VM_MX_L1_TLB_CNTL, tmp);
 628         /* Setup L2 cache */
 629         tmp = RREG32(mmVM_L2_CNTL);
 630         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_CACHE, 1);
 631         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_FRAGMENT_PROCESSING, 1);
 632         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_PTE_CACHE_LRU_UPDATE_BY_WRITE, 1);
 633         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_PDE0_CACHE_LRU_UPDATE_BY_WRITE, 1);
 634         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, EFFECTIVE_L2_QUEUE_SIZE, 7);
 635         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, CONTEXT1_IDENTITY_ACCESS_MODE, 1);
 636         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_DEFAULT_PAGE_OUT_TO_SYSTEM_MEMORY, 1);
 637         WREG32(mmVM_L2_CNTL, tmp);
 638         tmp = RREG32(mmVM_L2_CNTL2);
 639         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL2, INVALIDATE_ALL_L1_TLBS, 1);
 640         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL2, INVALIDATE_L2_CACHE, 1);
 641         WREG32(mmVM_L2_CNTL2, tmp);
 642         tmp = RREG32(mmVM_L2_CNTL3);
 643         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, L2_CACHE_BIGK_ASSOCIATIVITY, 1);
 644         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, BANK_SELECT, 4);
 645         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, L2_CACHE_BIGK_FRAGMENT_SIZE, 4);
 646         WREG32(mmVM_L2_CNTL3, tmp);
 647         /* XXX: set to enable PTE/PDE in system memory */
 648         tmp = RREG32(mmVM_L2_CNTL4);
 649         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_CONTEXT0_PDE_REQUEST_PHYSICAL, 0);
 650         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_CONTEXT0_PDE_REQUEST_SHARED, 0);
 651         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_CONTEXT0_PDE_REQUEST_SNOOP, 0);
 652         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_CONTEXT0_PTE_REQUEST_PHYSICAL, 0);
 653         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_CONTEXT0_PTE_REQUEST_SHARED, 0);
 654         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_CONTEXT0_PTE_REQUEST_SNOOP, 0);
 655         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_CONTEXT1_PDE_REQUEST_PHYSICAL, 0);
 656         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_CONTEXT1_PDE_REQUEST_SHARED, 0);
 657         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_CONTEXT1_PDE_REQUEST_SNOOP, 0);
 658         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_CONTEXT1_PTE_REQUEST_PHYSICAL, 0);
 659         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_CONTEXT1_PTE_REQUEST_SHARED, 0);
 660         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_CONTEXT1_PTE_REQUEST_SNOOP, 0);
 661         WREG32(mmVM_L2_CNTL4, tmp);
 662         /* setup context0 */
 663         WREG32(mmVM_CONTEXT0_PAGE_TABLE_START_ADDR, adev->mc.gtt_start >> 12);
 664         WREG32(mmVM_CONTEXT0_PAGE_TABLE_END_ADDR, (adev->mc.gtt_end >> 12) - 1);
 665         WREG32(mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR, adev->gart.table_addr >> 12);
 666         WREG32(mmVM_CONTEXT0_PROTECTION_FAULT_DEFAULT_ADDR,
 667                         (u32)(adev->dummy_page.addr >> 12));
 668         WREG32(mmVM_CONTEXT0_CNTL2, 0);
 669         tmp = RREG32(mmVM_CONTEXT0_CNTL);
 670         tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, ENABLE_CONTEXT, 1);
 671         tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, PAGE_TABLE_DEPTH, 0);
 672         tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 673         WREG32(mmVM_CONTEXT0_CNTL, tmp);
 674
 675         WREG32(mmVM_L2_CONTEXT1_IDENTITY_APERTURE_LOW_ADDR, 0);
 676         WREG32(mmVM_L2_CONTEXT1_IDENTITY_APERTURE_HIGH_ADDR, 0);
 677         WREG32(mmVM_L2_CONTEXT_IDENTITY_PHYSICAL_OFFSET, 0);
 678
 679         /* empty context1-15 */
 680         /* FIXME start with 4G, once using 2 level pt switch to full
 681          * vm size space
 682          */
 683         /* set vm size, must be a multiple of 4 */
 684         WREG32(mmVM_CONTEXT1_PAGE_TABLE_START_ADDR, 0);
 685         WREG32(mmVM_CONTEXT1_PAGE_TABLE_END_ADDR, adev->vm_manager.max_pfn - 1);
 686         for (i = 1; i < 16; i++) {
 687                 if (i < 8)
 688                         WREG32(mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR + i,
 689                                adev->gart.table_addr >> 12);
 690                 else
 691                         WREG32(mmVM_CONTEXT8_PAGE_TABLE_BASE_ADDR + i - 8,
 692                                adev->gart.table_addr >> 12);
 693         }
 694
 695         /* enable context1-15 */
 696         WREG32(mmVM_CONTEXT1_PROTECTION_FAULT_DEFAULT_ADDR,
 697                (u32)(adev->dummy_page.addr >> 12));
 698         WREG32(mmVM_CONTEXT1_CNTL2, 4);
 699         tmp = RREG32(mmVM_CONTEXT1_CNTL);
 700         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, ENABLE_CONTEXT, 1);
 701         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, PAGE_TABLE_DEPTH, 1);
 702         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 703         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 704         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, PDE0_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 705         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, VALID_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 706         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, READ_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 707         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, WRITE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 708         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, EXECUTE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 709         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, PAGE_TABLE_BLOCK_SIZE,
 710                             amdgpu_vm_block_size - 9);
 711         WREG32(mmVM_CONTEXT1_CNTL, tmp);
 712         if (amdgpu_vm_fault_stop == AMDGPU_VM_FAULT_STOP_ALWAYS)
 713                 gmc_v8_0_set_fault_enable_default(adev, false);
 714         else
 715                 gmc_v8_0_set_fault_enable_default(adev, true);
 716
 717         gmc_v8_0_gart_flush_gpu_tlb(adev, 0);
 718         DRM_INFO("PCIE GART of %uM enabled (table at 0x%016llX).\n",
 719                  (unsigned)(adev->mc.gtt_size >> 20),
 720                  (unsigned long long)adev->gart.table_addr);
 721         adev->gart.ready = true;
 722         return 0;
 723 }
 724
 725 static int gmc_v8_0_gart_init(struct amdgpu_device *adev)
 726 {
 727         int r;
 728
 729         if (adev->gart.robj) {
 730                 WARN(1, "R600 PCIE GART already initialized\n");
 731                 return 0;
 732         }
 733         /* Initialize common gart structure */
 734         r = amdgpu_gart_init(adev);
 735         if (r)
 736                 return r;
 737         adev->gart.table_size = adev->gart.num_gpu_pages * 8;
 738         return amdgpu_gart_table_vram_alloc(adev);
 739 }
 740
 741 /**
 742  * gmc_v8_0_gart_disable - gart disable
 743  *
 744  * @adev: amdgpu_device pointer
 745  *
 746  * This disables all VM page table (CIK).
 747  */
 748 static void gmc_v8_0_gart_disable(struct amdgpu_device *adev)
 749 {
 750         u32 tmp;
 751
 752         /* Disable all tables */
 753         WREG32(mmVM_CONTEXT0_CNTL, 0);
 754         WREG32(mmVM_CONTEXT1_CNTL, 0);
 755         /* Setup TLB control */
 756         tmp = RREG32(mmMC_VM_MX_L1_TLB_CNTL);
 757         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 0);
 758         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_FRAGMENT_PROCESSING, 0);
 759         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_ADVANCED_DRIVER_MODEL, 0);
 760         WREG32(mmMC_VM_MX_L1_TLB_CNTL, tmp);
 761         /* Setup L2 cache */
 762         tmp = RREG32(mmVM_L2_CNTL);
 763         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_CACHE, 0);
 764         WREG32(mmVM_L2_CNTL, tmp);
 765         WREG32(mmVM_L2_CNTL2, 0);
 766         amdgpu_gart_table_vram_unpin(adev);
 767 }
 768
 769 /**
 770  * gmc_v8_0_gart_fini - vm fini callback
 771  *
 772  * @adev: amdgpu_device pointer
 773  *
 774  * Tears down the driver GART/VM setup (CIK).
 775  */
 776 static void gmc_v8_0_gart_fini(struct amdgpu_device *adev)
 777 {
 778         amdgpu_gart_table_vram_free(adev);
 779         amdgpu_gart_fini(adev);
 780 }
 781
 782 /*
 783  * vm
 784  * VMID 0 is the physical GPU addresses as used by the kernel.
 785  * VMIDs 1-15 are used for userspace clients and are handled
 786  * by the amdgpu vm/hsa code.
 787  */
 788 /**
 789  * gmc_v8_0_vm_init - cik vm init callback
 790  *
 791  * @adev: amdgpu_device pointer
 792  *
 793  * Inits cik specific vm parameters (number of VMs, base of vram for
 794  * VMIDs 1-15) (CIK).
 795  * Returns 0 for success.
 796  */
 797 static int gmc_v8_0_vm_init(struct amdgpu_device *adev)
 798 {
 799         /*
 800          * number of VMs
 801          * VMID 0 is reserved for System
 802          * amdgpu graphics/compute will use VMIDs 1-7
 803          * amdkfd will use VMIDs 8-15
 804          */
 805         adev->vm_manager.nvm = AMDGPU_NUM_OF_VMIDS;
 806
 807         /* base offset of vram pages */
 808         if (adev->flags & AMD_IS_APU) {
 809                 u64 tmp = RREG32(mmMC_VM_FB_OFFSET);
 810                 tmp <<= 22;
 811                 adev->vm_manager.vram_base_offset = tmp;
 812         } else
 813                 adev->vm_manager.vram_base_offset = 0;
 814
 815         return 0;
 816 }
 817
 818 /**
 819  * gmc_v8_0_vm_fini - cik vm fini callback
 820  *
 821  * @adev: amdgpu_device pointer
 822  *
 823  * Tear down any asic specific VM setup (CIK).
 824  */
 825 static void gmc_v8_0_vm_fini(struct amdgpu_device *adev)
 826 {
 827 }
 828
 829 /**
 830  * gmc_v8_0_vm_decode_fault - print human readable fault info
 831  *
 832  * @adev: amdgpu_device pointer
 833  * @status: VM_CONTEXT1_PROTECTION_FAULT_STATUS register value
 834  * @addr: VM_CONTEXT1_PROTECTION_FAULT_ADDR register value
 835  *
 836  * Print human readable fault information (CIK).
 837  */
 838 static void gmc_v8_0_vm_decode_fault(struct amdgpu_device *adev,
 839                                      u32 status, u32 addr, u32 mc_client)
 840 {
 841         u32 mc_id;
 842         u32 vmid = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS, VMID);
 843         u32 protections = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS,
 844                                         PROTECTIONS);
 845         char block[5] = { mc_client >> 24, (mc_client >> 16) & 0xff,
 846                 (mc_client >> 8) & 0xff, mc_client & 0xff, 0 };
 847
 848         mc_id = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS,
 849                               MEMORY_CLIENT_ID);
 850
 851         printk("VM fault (0x%02x, vmid %d) at page %u, %s from '%s' (0x%08x) (%d)\n",
 852                protections, vmid, addr,
 853                REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS,
 854                              MEMORY_CLIENT_RW) ?
 855                "write" : "read", block, mc_client, mc_id);
 856 }
 857
 858 static int gmc_v8_0_convert_vram_type(int mc_seq_vram_type)
 859 {
 860         switch (mc_seq_vram_type) {
 861         case MC_SEQ_MISC0__MT__GDDR1:
 862                 return AMDGPU_VRAM_TYPE_GDDR1;
 863         case MC_SEQ_MISC0__MT__DDR2:
 864                 return AMDGPU_VRAM_TYPE_DDR2;
 865         case MC_SEQ_MISC0__MT__GDDR3:
 866                 return AMDGPU_VRAM_TYPE_GDDR3;
 867         case MC_SEQ_MISC0__MT__GDDR4:
 868                 return AMDGPU_VRAM_TYPE_GDDR4;
 869         case MC_SEQ_MISC0__MT__GDDR5:
 870                 return AMDGPU_VRAM_TYPE_GDDR5;
 871         case MC_SEQ_MISC0__MT__HBM:
 872                 return AMDGPU_VRAM_TYPE_HBM;
 873         case MC_SEQ_MISC0__MT__DDR3:
 874                 return AMDGPU_VRAM_TYPE_DDR3;
 875         default:
 876                 return AMDGPU_VRAM_TYPE_UNKNOWN;
 877         }
 878 }
 879
 880 static int gmc_v8_0_early_init(void *handle)
 881 {
 882         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 883
 884         gmc_v8_0_set_gart_funcs(adev);
 885         gmc_v8_0_set_irq_funcs(adev);
 886
 887         if (adev->flags & AMD_IS_APU) {
 888                 adev->mc.vram_type = AMDGPU_VRAM_TYPE_UNKNOWN;
 889         } else {
 890                 u32 tmp = RREG32(mmMC_SEQ_MISC0);
 891                 tmp &= MC_SEQ_MISC0__MT__MASK;
 892                 adev->mc.vram_type = gmc_v8_0_convert_vram_type(tmp);
 893         }
 894
 895         return 0;
 896 }
 897
 898 static int gmc_v8_0_late_init(void *handle)
 899 {
 900         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 901
 902         return amdgpu_irq_get(adev, &adev->mc.vm_fault, 0);
 903 }
 904
 905 static int gmc_v8_0_sw_init(void *handle)
 906 {
 907         int r;
 908         int dma_bits;
 909         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 910
 911         r = amdgpu_gem_init(adev);
 912         if (r)
 913                 return r;
 914
 915         r = amdgpu_irq_add_id(adev, 146, &adev->mc.vm_fault);
 916         if (r)
 917                 return r;
 918
 919         r = amdgpu_irq_add_id(adev, 147, &adev->mc.vm_fault);
 920         if (r)
 921                 return r;
 922
 923         /* Adjust VM size here.
 924          * Currently set to 4GB ((1 << 20) 4k pages).
 925          * Max GPUVM size for cayman and SI is 40 bits.
 926          */
 927         adev->vm_manager.max_pfn = amdgpu_vm_size << 18;
 928
 929         /* Set the internal MC address mask
 930          * This is the max address of the GPU's
 931          * internal address space.
 932          */
 933         adev->mc.mc_mask = 0xffffffffffULL; /* 40 bit MC */
 934
 935         /* set DMA mask + need_dma32 flags.
 936          * PCIE - can handle 40-bits.
 937          * IGP - can handle 40-bits
 938          * PCI - dma32 for legacy pci gart, 40 bits on newer asics
 939          */
 940         adev->need_dma32 = false;
 941         dma_bits = adev->need_dma32 ? 32 : 40;
 942         r = pci_set_dma_mask(adev->pdev, DMA_BIT_MASK(dma_bits));
 943         if (r) {
 944                 adev->need_dma32 = true;
 945                 dma_bits = 32;
 946                 printk(KERN_WARNING "amdgpu: No suitable DMA available.\n");
 947         }
 948         r = pci_set_consistent_dma_mask(adev->pdev, DMA_BIT_MASK(dma_bits));
 949         if (r) {
 950                 pci_set_consistent_dma_mask(adev->pdev, DMA_BIT_MASK(32));
 951                 printk(KERN_WARNING "amdgpu: No coherent DMA available.\n");
 952         }
 953
 954         r = gmc_v8_0_init_microcode(adev);
 955         if (r) {
 956                 DRM_ERROR("Failed to load mc firmware!\n");
 957                 return r;
 958         }
 959
 960         r = gmc_v8_0_mc_init(adev);
 961         if (r)
 962                 return r;
 963
 964         /* Memory manager */
 965         r = amdgpu_bo_init(adev);
 966         if (r)
 967                 return r;
 968
 969         r = gmc_v8_0_gart_init(adev);
 970         if (r)
 971                 return r;
 972
 973         if (!adev->vm_manager.enabled) {
 974                 r = gmc_v8_0_vm_init(adev);
 975                 if (r) {
 976                         dev_err(adev->dev, "vm manager initialization failed (%d).\n", r);
 977                         return r;
 978                 }
 979                 adev->vm_manager.enabled = true;
 980         }
 981
 982         return r;
 983 }
 984
 985 static int gmc_v8_0_sw_fini(void *handle)
 986 {
 987         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 988
 989         if (adev->vm_manager.enabled) {
 990                 amdgpu_vm_manager_fini(adev);
 991                 gmc_v8_0_vm_fini(adev);
 992                 adev->vm_manager.enabled = false;
 993         }
 994         gmc_v8_0_gart_fini(adev);
 995         amdgpu_gem_fini(adev);
 996         amdgpu_bo_fini(adev);
 997
 998         return 0;
 999 }
1000
1001 static int gmc_v8_0_hw_init(void *handle)
1002 {
1003         int r;
1004         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1005
1006         gmc_v8_0_init_golden_registers(adev);
1007
1008         gmc_v8_0_mc_program(adev);
1009
1010         if (!(adev->flags & AMD_IS_APU)) {
1011                 r = gmc_v8_0_mc_load_microcode(adev);
1012                 if (r) {
1013                         DRM_ERROR("Failed to load MC firmware!\n");
1014                         return r;
1015                 }
1016         }
1017
1018         r = gmc_v8_0_gart_enable(adev);
1019         if (r)
1020                 return r;
1021
1022         return r;
1023 }
1024
1025 static int gmc_v8_0_hw_fini(void *handle)
1026 {
1027         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1028
1029         amdgpu_irq_put(adev, &adev->mc.vm_fault, 0);
1030         gmc_v8_0_gart_disable(adev);
1031
1032         return 0;
1033 }
1034
1035 static int gmc_v8_0_suspend(void *handle)
1036 {
1037         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1038
1039         if (adev->vm_manager.enabled) {
1040                 amdgpu_vm_manager_fini(adev);
1041                 gmc_v8_0_vm_fini(adev);
1042                 adev->vm_manager.enabled = false;
1043         }
1044         gmc_v8_0_hw_fini(adev);
1045
1046         return 0;
1047 }
1048
1049 static int gmc_v8_0_resume(void *handle)
1050 {
1051         int r;
1052         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1053
1054         r = gmc_v8_0_hw_init(adev);
1055         if (r)
1056                 return r;
1057
1058         if (!adev->vm_manager.enabled) {
1059                 r = gmc_v8_0_vm_init(adev);
1060                 if (r) {
1061                         dev_err(adev->dev, "vm manager initialization failed (%d).\n", r);
1062                         return r;
1063                 }
1064                 adev->vm_manager.enabled = true;
1065         }
1066
1067         return r;
1068 }
1069
1070 static bool gmc_v8_0_is_idle(void *handle)
1071 {
1072         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1073         u32 tmp = RREG32(mmSRBM_STATUS);
1074
1075         if (tmp & (SRBM_STATUS__MCB_BUSY_MASK | SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK |
1076                    SRBM_STATUS__MCC_BUSY_MASK | SRBM_STATUS__MCD_BUSY_MASK | SRBM_STATUS__VMC_BUSY_MASK))
1077                 return false;
1078
1079         return true;
1080 }
1081
1082 static int gmc_v8_0_wait_for_idle(void *handle)
1083 {
1084         unsigned i;
1085         u32 tmp;
1086         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1087
1088         for (i = 0; i < adev->usec_timeout; i++) {
1089                 /* read MC_STATUS */
1090                 tmp = RREG32(mmSRBM_STATUS) & (SRBM_STATUS__MCB_BUSY_MASK |
1091                                                SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK |
1092                                                SRBM_STATUS__MCC_BUSY_MASK |
1093                                                SRBM_STATUS__MCD_BUSY_MASK |
1094                                                SRBM_STATUS__VMC_BUSY_MASK |
1095                                                SRBM_STATUS__VMC1_BUSY_MASK);
1096                 if (!tmp)
1097                         return 0;
1098                 udelay(1);
1099         }
1100         return -ETIMEDOUT;
1101
1102 }
1103
1104 static void gmc_v8_0_print_status(void *handle)
1105 {
1106         int i, j;
1107         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1108
1109         dev_info(adev->dev, "GMC 8.x registers\n");
1110         dev_info(adev->dev, "  SRBM_STATUS=0x%08X\n",
1111                 RREG32(mmSRBM_STATUS));
1112         dev_info(adev->dev, "  SRBM_STATUS2=0x%08X\n",
1113                 RREG32(mmSRBM_STATUS2));
1114
1115         dev_info(adev->dev, "  VM_CONTEXT1_PROTECTION_FAULT_ADDR   0x%08X\n",
1116                  RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_ADDR));
1117         dev_info(adev->dev, "  VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x%08X\n",
1118                  RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_STATUS));
1119         dev_info(adev->dev, "  MC_VM_MX_L1_TLB_CNTL=0x%08X\n",
1120                  RREG32(mmMC_VM_MX_L1_TLB_CNTL));
1121         dev_info(adev->dev, "  VM_L2_CNTL=0x%08X\n",
1122                  RREG32(mmVM_L2_CNTL));
1123         dev_info(adev->dev, "  VM_L2_CNTL2=0x%08X\n",
1124                  RREG32(mmVM_L2_CNTL2));
1125         dev_info(adev->dev, "  VM_L2_CNTL3=0x%08X\n",
1126                  RREG32(mmVM_L2_CNTL3));
1127         dev_info(adev->dev, "  VM_L2_CNTL4=0x%08X\n",
1128                  RREG32(mmVM_L2_CNTL4));
1129         dev_info(adev->dev, "  VM_CONTEXT0_PAGE_TABLE_START_ADDR=0x%08X\n",
1130                  RREG32(mmVM_CONTEXT0_PAGE_TABLE_START_ADDR));
1131         dev_info(adev->dev, "  VM_CONTEXT0_PAGE_TABLE_END_ADDR=0x%08X\n",
1132                  RREG32(mmVM_CONTEXT0_PAGE_TABLE_END_ADDR));
1133         dev_info(adev->dev, "  VM_CONTEXT0_PROTECTION_FAULT_DEFAULT_ADDR=0x%08X\n",
1134                  RREG32(mmVM_CONTEXT0_PROTECTION_FAULT_DEFAULT_ADDR));
1135         dev_info(adev->dev, "  VM_CONTEXT0_CNTL2=0x%08X\n",
1136                  RREG32(mmVM_CONTEXT0_CNTL2));
1137         dev_info(adev->dev, "  VM_CONTEXT0_CNTL=0x%08X\n",
1138                  RREG32(mmVM_CONTEXT0_CNTL));
1139         dev_info(adev->dev, "  VM_L2_CONTEXT1_IDENTITY_APERTURE_LOW_ADDR=0x%08X\n",
1140                  RREG32(mmVM_L2_CONTEXT1_IDENTITY_APERTURE_LOW_ADDR));
1141         dev_info(adev->dev, "  VM_L2_CONTEXT1_IDENTITY_APERTURE_HIGH_ADDR=0x%08X\n",
1142                  RREG32(mmVM_L2_CONTEXT1_IDENTITY_APERTURE_HIGH_ADDR));
1143         dev_info(adev->dev, "  mmVM_L2_CONTEXT_IDENTITY_PHYSICAL_OFFSET=0x%08X\n",
1144                  RREG32(mmVM_L2_CONTEXT_IDENTITY_PHYSICAL_OFFSET));
1145         dev_info(adev->dev, "  VM_CONTEXT1_PAGE_TABLE_START_ADDR=0x%08X\n",
1146                  RREG32(mmVM_CONTEXT1_PAGE_TABLE_START_ADDR));
1147         dev_info(adev->dev, "  VM_CONTEXT1_PAGE_TABLE_END_ADDR=0x%08X\n",
1148                  RREG32(mmVM_CONTEXT1_PAGE_TABLE_END_ADDR));
1149         dev_info(adev->dev, "  VM_CONTEXT1_PROTECTION_FAULT_DEFAULT_ADDR=0x%08X\n",
1150                  RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_DEFAULT_ADDR));
1151         dev_info(adev->dev, "  VM_CONTEXT1_CNTL2=0x%08X\n",
1152                  RREG32(mmVM_CONTEXT1_CNTL2));
1153         dev_info(adev->dev, "  VM_CONTEXT1_CNTL=0x%08X\n",
1154                  RREG32(mmVM_CONTEXT1_CNTL));
1155         for (i = 0; i < 16; i++) {
1156                 if (i < 8)
1157                         dev_info(adev->dev, "  VM_CONTEXT%d_PAGE_TABLE_BASE_ADDR=0x%08X\n",
1158                                  i, RREG32(mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR + i));
1159                 else
1160                         dev_info(adev->dev, "  VM_CONTEXT%d_PAGE_TABLE_BASE_ADDR=0x%08X\n",
1161                                  i, RREG32(mmVM_CONTEXT8_PAGE_TABLE_BASE_ADDR + i - 8));
1162         }
1163         dev_info(adev->dev, "  MC_VM_SYSTEM_APERTURE_LOW_ADDR=0x%08X\n",
1164                  RREG32(mmMC_VM_SYSTEM_APERTURE_LOW_ADDR));
1165         dev_info(adev->dev, "  MC_VM_SYSTEM_APERTURE_HIGH_ADDR=0x%08X\n",
1166                  RREG32(mmMC_VM_SYSTEM_APERTURE_HIGH_ADDR));
1167         dev_info(adev->dev, "  MC_VM_SYSTEM_APERTURE_DEFAULT_ADDR=0x%08X\n",
1168                  RREG32(mmMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR));
1169         dev_info(adev->dev, "  MC_VM_FB_LOCATION=0x%08X\n",
1170                  RREG32(mmMC_VM_FB_LOCATION));
1171         dev_info(adev->dev, "  MC_VM_AGP_BASE=0x%08X\n",
1172                  RREG32(mmMC_VM_AGP_BASE));
1173         dev_info(adev->dev, "  MC_VM_AGP_TOP=0x%08X\n",
1174                  RREG32(mmMC_VM_AGP_TOP));
1175         dev_info(adev->dev, "  MC_VM_AGP_BOT=0x%08X\n",
1176                  RREG32(mmMC_VM_AGP_BOT));
1177
1178         dev_info(adev->dev, "  HDP_REG_COHERENCY_FLUSH_CNTL=0x%08X\n",
1179                  RREG32(mmHDP_REG_COHERENCY_FLUSH_CNTL));
1180         dev_info(adev->dev, "  HDP_NONSURFACE_BASE=0x%08X\n",
1181                  RREG32(mmHDP_NONSURFACE_BASE));
1182         dev_info(adev->dev, "  HDP_NONSURFACE_INFO=0x%08X\n",
1183                  RREG32(mmHDP_NONSURFACE_INFO));
1184         dev_info(adev->dev, "  HDP_NONSURFACE_SIZE=0x%08X\n",
1185                  RREG32(mmHDP_NONSURFACE_SIZE));
1186         dev_info(adev->dev, "  HDP_MISC_CNTL=0x%08X\n",
1187                  RREG32(mmHDP_MISC_CNTL));
1188         dev_info(adev->dev, "  HDP_HOST_PATH_CNTL=0x%08X\n",
1189                  RREG32(mmHDP_HOST_PATH_CNTL));
1190
1191         for (i = 0, j = 0; i < 32; i++, j += 0x6) {
1192                 dev_info(adev->dev, "  %d:\n", i);
1193                 dev_info(adev->dev, "  0x%04X=0x%08X\n",
1194                          0xb05 + j, RREG32(0xb05 + j));
1195                 dev_info(adev->dev, "  0x%04X=0x%08X\n",
1196                          0xb06 + j, RREG32(0xb06 + j));
1197                 dev_info(adev->dev, "  0x%04X=0x%08X\n",
1198                          0xb07 + j, RREG32(0xb07 + j));
1199                 dev_info(adev->dev, "  0x%04X=0x%08X\n",
1200                          0xb08 + j, RREG32(0xb08 + j));
1201                 dev_info(adev->dev, "  0x%04X=0x%08X\n",
1202                          0xb09 + j, RREG32(0xb09 + j));
1203         }
1204
1205         dev_info(adev->dev, "  BIF_FB_EN=0x%08X\n",
1206                  RREG32(mmBIF_FB_EN));
1207 }
1208
1209 static int gmc_v8_0_soft_reset(void *handle)
1210 {
1211         struct amdgpu_mode_mc_save save;
1212         u32 srbm_soft_reset = 0;
1213         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1214         u32 tmp = RREG32(mmSRBM_STATUS);
1215
1216         if (tmp & SRBM_STATUS__VMC_BUSY_MASK)
1217                 srbm_soft_reset = REG_SET_FIELD(srbm_soft_reset,
1218                                                 SRBM_SOFT_RESET, SOFT_RESET_VMC, 1);
1219
1220         if (tmp & (SRBM_STATUS__MCB_BUSY_MASK | SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK |
1221                    SRBM_STATUS__MCC_BUSY_MASK | SRBM_STATUS__MCD_BUSY_MASK)) {
1222                 if (!(adev->flags & AMD_IS_APU))
1223                         srbm_soft_reset = REG_SET_FIELD(srbm_soft_reset,
1224                                                         SRBM_SOFT_RESET, SOFT_RESET_MC, 1);
1225         }
1226
1227         if (srbm_soft_reset) {
1228                 gmc_v8_0_print_status((void *)adev);
1229
1230                 gmc_v8_0_mc_stop(adev, &save);
1231                 if (gmc_v8_0_wait_for_idle(adev)) {
1232                         dev_warn(adev->dev, "Wait for GMC idle timed out !\n");
1233                 }
1234
1235
1236                 tmp = RREG32(mmSRBM_SOFT_RESET);
1237                 tmp |= srbm_soft_reset;
1238                 dev_info(adev->dev, "SRBM_SOFT_RESET=0x%08X\n", tmp);
1239                 WREG32(mmSRBM_SOFT_RESET, tmp);
1240                 tmp = RREG32(mmSRBM_SOFT_RESET);
1241
1242                 udelay(50);
1243
1244                 tmp &= ~srbm_soft_reset;
1245                 WREG32(mmSRBM_SOFT_RESET, tmp);
1246                 tmp = RREG32(mmSRBM_SOFT_RESET);
1247
1248                 /* Wait a little for things to settle down */
1249                 udelay(50);
1250
1251                 gmc_v8_0_mc_resume(adev, &save);
1252                 udelay(50);
1253
1254                 gmc_v8_0_print_status((void *)adev);
1255         }
1256
1257         return 0;
1258 }
1259
1260 static int gmc_v8_0_vm_fault_interrupt_state(struct amdgpu_device *adev,
1261                                              struct amdgpu_irq_src *src,
1262                                              unsigned type,
1263                                              enum amdgpu_interrupt_state state)
1264 {
1265         u32 tmp;
1266         u32 bits = (VM_CONTEXT1_CNTL__RANGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1267                     VM_CONTEXT1_CNTL__DUMMY_PAGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1268                     VM_CONTEXT1_CNTL__PDE0_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1269                     VM_CONTEXT1_CNTL__VALID_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1270                     VM_CONTEXT1_CNTL__READ_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1271                     VM_CONTEXT1_CNTL__WRITE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1272                     VM_CONTEXT1_CNTL__EXECUTE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK);
1273
1274         switch (state) {
1275         case AMDGPU_IRQ_STATE_DISABLE:
1276                 /* system context */
1277                 tmp = RREG32(mmVM_CONTEXT0_CNTL);
1278                 tmp &= ~bits;
1279                 WREG32(mmVM_CONTEXT0_CNTL, tmp);
1280                 /* VMs */
1281                 tmp = RREG32(mmVM_CONTEXT1_CNTL);
1282                 tmp &= ~bits;
1283                 WREG32(mmVM_CONTEXT1_CNTL, tmp);
1284                 break;
1285         case AMDGPU_IRQ_STATE_ENABLE:
1286                 /* system context */
1287                 tmp = RREG32(mmVM_CONTEXT0_CNTL);
1288                 tmp |= bits;
1289                 WREG32(mmVM_CONTEXT0_CNTL, tmp);
1290                 /* VMs */
1291                 tmp = RREG32(mmVM_CONTEXT1_CNTL);
1292                 tmp |= bits;
1293                 WREG32(mmVM_CONTEXT1_CNTL, tmp);
1294                 break;
1295         default:
1296                 break;
1297         }
1298
1299         return 0;
1300 }
1301
1302 static int gmc_v8_0_process_interrupt(struct amdgpu_device *adev,
1303                                       struct amdgpu_irq_src *source,
1304                                       struct amdgpu_iv_entry *entry)
1305 {
1306         u32 addr, status, mc_client;
1307
1308         addr = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_ADDR);
1309         status = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_STATUS);
1310         mc_client = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_MCCLIENT);
1311         /* reset addr and status */
1312         WREG32_P(mmVM_CONTEXT1_CNTL2, 1, ~1);
1313
1314         if (!addr && !status)
1315                 return 0;
1316
1317         if (amdgpu_vm_fault_stop == AMDGPU_VM_FAULT_STOP_FIRST)
1318                 gmc_v8_0_set_fault_enable_default(adev, false);
1319
1320         dev_err(adev->dev, "GPU fault detected: %d 0x%08x\n",
1321                 entry->src_id, entry->src_data);
1322         dev_err(adev->dev, "  VM_CONTEXT1_PROTECTION_FAULT_ADDR   0x%08X\n",
1323                 addr);
1324         dev_err(adev->dev, "  VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x%08X\n",
1325                 status);
1326         gmc_v8_0_vm_decode_fault(adev, status, addr, mc_client);
1327
1328         return 0;
1329 }
1330
1331 static int gmc_v8_0_set_clockgating_state(void *handle,
1332                                           enum amd_clockgating_state state)
1333 {
1334         return 0;
1335 }
1336
1337 static int gmc_v8_0_set_powergating_state(void *handle,
1338                                           enum amd_powergating_state state)
1339 {
1340         return 0;
1341 }
1342
1343 const struct amd_ip_funcs gmc_v8_0_ip_funcs = {
1344         .early_init = gmc_v8_0_early_init,
1345         .late_init = gmc_v8_0_late_init,
1346         .sw_init = gmc_v8_0_sw_init,
1347         .sw_fini = gmc_v8_0_sw_fini,
1348         .hw_init = gmc_v8_0_hw_init,
1349         .hw_fini = gmc_v8_0_hw_fini,
1350         .suspend = gmc_v8_0_suspend,
1351         .resume = gmc_v8_0_resume,
1352         .is_idle = gmc_v8_0_is_idle,
1353         .wait_for_idle = gmc_v8_0_wait_for_idle,
1354         .soft_reset = gmc_v8_0_soft_reset,
1355         .print_status = gmc_v8_0_print_status,
1356         .set_clockgating_state = gmc_v8_0_set_clockgating_state,
1357         .set_powergating_state = gmc_v8_0_set_powergating_state,
1358 };
1359
1360 static const struct amdgpu_gart_funcs gmc_v8_0_gart_funcs = {
1361         .flush_gpu_tlb = gmc_v8_0_gart_flush_gpu_tlb,
1362         .set_pte_pde = gmc_v8_0_gart_set_pte_pde,
1363 };
1364
1365 static const struct amdgpu_irq_src_funcs gmc_v8_0_irq_funcs = {
1366         .set = gmc_v8_0_vm_fault_interrupt_state,
1367         .process = gmc_v8_0_process_interrupt,
1368 };
1369
1370 static void gmc_v8_0_set_gart_funcs(struct amdgpu_device *adev)
1371 {
1372         if (adev->gart.gart_funcs == NULL)
1373                 adev->gart.gart_funcs = &gmc_v8_0_gart_funcs;
1374 }
1375
1376 static void gmc_v8_0_set_irq_funcs(struct amdgpu_device *adev)
1377 {
1378         adev->mc.vm_fault.num_types = 1;
1379         adev->mc.vm_fault.funcs = &gmc_v8_0_irq_funcs;
1380 }