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

   1 /*
   2  * Copyright 2014 Advanced Micro Devices, Inc.
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice shall be included in
  12  * all copies or substantial portions of the Software.
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  20  * OTHER DEALINGS IN THE SOFTWARE.
  21  *
  22  */
  23 #include <linux/firmware.h>
  24 #include "drmP.h"
  25 #include "amdgpu.h"
  26 #include "cikd.h"
  27 #include "cik.h"
  28 #include "gmc_v7_0.h"
  29 #include "amdgpu_ucode.h"
  30
  31 #include "bif/bif_4_1_d.h"
  32 #include "bif/bif_4_1_sh_mask.h"
  33
  34 #include "gmc/gmc_7_1_d.h"
  35 #include "gmc/gmc_7_1_sh_mask.h"
  36
  37 #include "oss/oss_2_0_d.h"
  38 #include "oss/oss_2_0_sh_mask.h"
  39
  40 static void gmc_v7_0_set_gart_funcs(struct amdgpu_device *adev);
  41 static void gmc_v7_0_set_irq_funcs(struct amdgpu_device *adev);
  42
  43 MODULE_FIRMWARE("radeon/bonaire_mc.bin");
  44 MODULE_FIRMWARE("radeon/hawaii_mc.bin");
  45 MODULE_FIRMWARE("amdgpu/topaz_mc.bin");
  46
  47 static const u32 golden_settings_iceland_a11[] =
  48 {
  49         mmVM_PRT_APERTURE0_LOW_ADDR, 0x0fffffff, 0x0fffffff,
  50         mmVM_PRT_APERTURE1_LOW_ADDR, 0x0fffffff, 0x0fffffff,
  51         mmVM_PRT_APERTURE2_LOW_ADDR, 0x0fffffff, 0x0fffffff,
  52         mmVM_PRT_APERTURE3_LOW_ADDR, 0x0fffffff, 0x0fffffff
  53 };
  54
  55 static const u32 iceland_mgcg_cgcg_init[] =
  56 {
  57         mmMC_MEM_POWER_LS, 0xffffffff, 0x00000104
  58 };
  59
  60 static void gmc_v7_0_init_golden_registers(struct amdgpu_device *adev)
  61 {
  62         switch (adev->asic_type) {
  63         case CHIP_TOPAZ:
  64                 amdgpu_program_register_sequence(adev,
  65                                                  iceland_mgcg_cgcg_init,
  66                                                  (const u32)ARRAY_SIZE(iceland_mgcg_cgcg_init));
  67                 amdgpu_program_register_sequence(adev,
  68                                                  golden_settings_iceland_a11,
  69                                                  (const u32)ARRAY_SIZE(golden_settings_iceland_a11));
  70                 break;
  71         default:
  72                 break;
  73         }
  74 }
  75
  76 /**
  77  * gmc7_mc_wait_for_idle - wait for MC idle callback.
  78  *
  79  * @adev: amdgpu_device pointer
  80  *
  81  * Wait for the MC (memory controller) to be idle.
  82  * (evergreen+).
  83  * Returns 0 if the MC is idle, -1 if not.
  84  */
  85 int gmc_v7_0_mc_wait_for_idle(struct amdgpu_device *adev)
  86 {
  87         unsigned i;
  88         u32 tmp;
  89
  90         for (i = 0; i < adev->usec_timeout; i++) {
  91                 /* read MC_STATUS */
  92                 tmp = RREG32(mmSRBM_STATUS) & 0x1F00;
  93                 if (!tmp)
  94                         return 0;
  95                 udelay(1);
  96         }
  97         return -1;
  98 }
  99
 100 void gmc_v7_0_mc_stop(struct amdgpu_device *adev,
 101                       struct amdgpu_mode_mc_save *save)
 102 {
 103         u32 blackout;
 104
 105         if (adev->mode_info.num_crtc)
 106                 amdgpu_display_stop_mc_access(adev, save);
 107
 108         amdgpu_asic_wait_for_mc_idle(adev);
 109
 110         blackout = RREG32(mmMC_SHARED_BLACKOUT_CNTL);
 111         if (REG_GET_FIELD(blackout, MC_SHARED_BLACKOUT_CNTL, BLACKOUT_MODE) != 1) {
 112                 /* Block CPU access */
 113                 WREG32(mmBIF_FB_EN, 0);
 114                 /* blackout the MC */
 115                 blackout = REG_SET_FIELD(blackout,
 116                                          MC_SHARED_BLACKOUT_CNTL, BLACKOUT_MODE, 0);
 117                 WREG32(mmMC_SHARED_BLACKOUT_CNTL, blackout | 1);
 118         }
 119         /* wait for the MC to settle */
 120         udelay(100);
 121 }
 122
 123 void gmc_v7_0_mc_resume(struct amdgpu_device *adev,
 124                         struct amdgpu_mode_mc_save *save)
 125 {
 126         u32 tmp;
 127
 128         /* unblackout the MC */
 129         tmp = RREG32(mmMC_SHARED_BLACKOUT_CNTL);
 130         tmp = REG_SET_FIELD(tmp, MC_SHARED_BLACKOUT_CNTL, BLACKOUT_MODE, 0);
 131         WREG32(mmMC_SHARED_BLACKOUT_CNTL, tmp);
 132         /* allow CPU access */
 133         tmp = REG_SET_FIELD(0, BIF_FB_EN, FB_READ_EN, 1);
 134         tmp = REG_SET_FIELD(tmp, BIF_FB_EN, FB_WRITE_EN, 1);
 135         WREG32(mmBIF_FB_EN, tmp);
 136
 137         if (adev->mode_info.num_crtc)
 138                 amdgpu_display_resume_mc_access(adev, save);
 139 }
 140
 141 /**
 142  * gmc_v7_0_init_microcode - load ucode images from disk
 143  *
 144  * @adev: amdgpu_device pointer
 145  *
 146  * Use the firmware interface to load the ucode images into
 147  * the driver (not loaded into hw).
 148  * Returns 0 on success, error on failure.
 149  */
 150 static int gmc_v7_0_init_microcode(struct amdgpu_device *adev)
 151 {
 152         const char *chip_name;
 153         char fw_name[30];
 154         int err;
 155
 156         DRM_DEBUG("\n");
 157
 158         switch (adev->asic_type) {
 159         case CHIP_BONAIRE:
 160                 chip_name = "bonaire";
 161                 break;
 162         case CHIP_HAWAII:
 163                 chip_name = "hawaii";
 164                 break;
 165         case CHIP_TOPAZ:
 166                 chip_name = "topaz";
 167                 break;
 168         case CHIP_KAVERI:
 169         case CHIP_KABINI:
 170                 return 0;
 171         default: BUG();
 172         }
 173
 174         if (adev->asic_type == CHIP_TOPAZ)
 175                 snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_mc.bin", chip_name);
 176         else
 177                 snprintf(fw_name, sizeof(fw_name), "radeon/%s_mc.bin", chip_name);
 178
 179         err = request_firmware(&adev->mc.fw, fw_name, adev->dev);
 180         if (err)
 181                 goto out;
 182         err = amdgpu_ucode_validate(adev->mc.fw);
 183
 184 out:
 185         if (err) {
 186                 printk(KERN_ERR
 187                        "cik_mc: Failed to load firmware \"%s\"\n",
 188                        fw_name);
 189                 release_firmware(adev->mc.fw);
 190                 adev->mc.fw = NULL;
 191         }
 192         return err;
 193 }
 194
 195 /**
 196  * gmc_v7_0_mc_load_microcode - load MC ucode into the hw
 197  *
 198  * @adev: amdgpu_device pointer
 199  *
 200  * Load the GDDR MC ucode into the hw (CIK).
 201  * Returns 0 on success, error on failure.
 202  */
 203 static int gmc_v7_0_mc_load_microcode(struct amdgpu_device *adev)
 204 {
 205         const struct mc_firmware_header_v1_0 *hdr;
 206         const __le32 *fw_data = NULL;
 207         const __le32 *io_mc_regs = NULL;
 208         u32 running, blackout = 0;
 209         int i, ucode_size, regs_size;
 210
 211         if (!adev->mc.fw)
 212                 return -EINVAL;
 213
 214         hdr = (const struct mc_firmware_header_v1_0 *)adev->mc.fw->data;
 215         amdgpu_ucode_print_mc_hdr(&hdr->header);
 216
 217         adev->mc.fw_version = le32_to_cpu(hdr->header.ucode_version);
 218         regs_size = le32_to_cpu(hdr->io_debug_size_bytes) / (4 * 2);
 219         io_mc_regs = (const __le32 *)
 220                 (adev->mc.fw->data + le32_to_cpu(hdr->io_debug_array_offset_bytes));
 221         ucode_size = le32_to_cpu(hdr->header.ucode_size_bytes) / 4;
 222         fw_data = (const __le32 *)
 223                 (adev->mc.fw->data + le32_to_cpu(hdr->header.ucode_array_offset_bytes));
 224
 225         running = REG_GET_FIELD(RREG32(mmMC_SEQ_SUP_CNTL), MC_SEQ_SUP_CNTL, RUN);
 226
 227         if (running == 0) {
 228                 if (running) {
 229                         blackout = RREG32(mmMC_SHARED_BLACKOUT_CNTL);
 230                         WREG32(mmMC_SHARED_BLACKOUT_CNTL, blackout | 1);
 231                 }
 232
 233                 /* reset the engine and set to writable */
 234                 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000008);
 235                 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000010);
 236
 237                 /* load mc io regs */
 238                 for (i = 0; i < regs_size; i++) {
 239                         WREG32(mmMC_SEQ_IO_DEBUG_INDEX, le32_to_cpup(io_mc_regs++));
 240                         WREG32(mmMC_SEQ_IO_DEBUG_DATA, le32_to_cpup(io_mc_regs++));
 241                 }
 242                 /* load the MC ucode */
 243                 for (i = 0; i < ucode_size; i++)
 244                         WREG32(mmMC_SEQ_SUP_PGM, le32_to_cpup(fw_data++));
 245
 246                 /* put the engine back into the active state */
 247                 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000008);
 248                 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000004);
 249                 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000001);
 250
 251                 /* wait for training to complete */
 252                 for (i = 0; i < adev->usec_timeout; i++) {
 253                         if (REG_GET_FIELD(RREG32(mmMC_SEQ_TRAIN_WAKEUP_CNTL),
 254                                           MC_SEQ_TRAIN_WAKEUP_CNTL, TRAIN_DONE_D0))
 255                                 break;
 256                         udelay(1);
 257                 }
 258                 for (i = 0; i < adev->usec_timeout; i++) {
 259                         if (REG_GET_FIELD(RREG32(mmMC_SEQ_TRAIN_WAKEUP_CNTL),
 260                                           MC_SEQ_TRAIN_WAKEUP_CNTL, TRAIN_DONE_D1))
 261                                 break;
 262                         udelay(1);
 263                 }
 264
 265                 if (running)
 266                         WREG32(mmMC_SHARED_BLACKOUT_CNTL, blackout);
 267         }
 268
 269         return 0;
 270 }
 271
 272 static void gmc_v7_0_vram_gtt_location(struct amdgpu_device *adev,
 273                                        struct amdgpu_mc *mc)
 274 {
 275         if (mc->mc_vram_size > 0xFFC0000000ULL) {
 276                 /* leave room for at least 1024M GTT */
 277                 dev_warn(adev->dev, "limiting VRAM\n");
 278                 mc->real_vram_size = 0xFFC0000000ULL;
 279                 mc->mc_vram_size = 0xFFC0000000ULL;
 280         }
 281         amdgpu_vram_location(adev, &adev->mc, 0);
 282         adev->mc.gtt_base_align = 0;
 283         amdgpu_gtt_location(adev, mc);
 284 }
 285
 286 /**
 287  * gmc_v7_0_mc_program - program the GPU memory controller
 288  *
 289  * @adev: amdgpu_device pointer
 290  *
 291  * Set the location of vram, gart, and AGP in the GPU's
 292  * physical address space (CIK).
 293  */
 294 static void gmc_v7_0_mc_program(struct amdgpu_device *adev)
 295 {
 296         struct amdgpu_mode_mc_save save;
 297         u32 tmp;
 298         int i, j;
 299
 300         /* Initialize HDP */
 301         for (i = 0, j = 0; i < 32; i++, j += 0x6) {
 302                 WREG32((0xb05 + j), 0x00000000);
 303                 WREG32((0xb06 + j), 0x00000000);
 304                 WREG32((0xb07 + j), 0x00000000);
 305                 WREG32((0xb08 + j), 0x00000000);
 306                 WREG32((0xb09 + j), 0x00000000);
 307         }
 308         WREG32(mmHDP_REG_COHERENCY_FLUSH_CNTL, 0);
 309
 310         if (adev->mode_info.num_crtc)
 311                 amdgpu_display_set_vga_render_state(adev, false);
 312
 313         gmc_v7_0_mc_stop(adev, &save);
 314         if (amdgpu_asic_wait_for_mc_idle(adev)) {
 315                 dev_warn(adev->dev, "Wait for MC idle timedout !\n");
 316         }
 317         /* Update configuration */
 318         WREG32(mmMC_VM_SYSTEM_APERTURE_LOW_ADDR,
 319                adev->mc.vram_start >> 12);
 320         WREG32(mmMC_VM_SYSTEM_APERTURE_HIGH_ADDR,
 321                adev->mc.vram_end >> 12);
 322         WREG32(mmMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR,
 323                adev->vram_scratch.gpu_addr >> 12);
 324         tmp = ((adev->mc.vram_end >> 24) & 0xFFFF) << 16;
 325         tmp |= ((adev->mc.vram_start >> 24) & 0xFFFF);
 326         WREG32(mmMC_VM_FB_LOCATION, tmp);
 327         /* XXX double check these! */
 328         WREG32(mmHDP_NONSURFACE_BASE, (adev->mc.vram_start >> 8));
 329         WREG32(mmHDP_NONSURFACE_INFO, (2 << 7) | (1 << 30));
 330         WREG32(mmHDP_NONSURFACE_SIZE, 0x3FFFFFFF);
 331         WREG32(mmMC_VM_AGP_BASE, 0);
 332         WREG32(mmMC_VM_AGP_TOP, 0x0FFFFFFF);
 333         WREG32(mmMC_VM_AGP_BOT, 0x0FFFFFFF);
 334         if (amdgpu_asic_wait_for_mc_idle(adev)) {
 335                 dev_warn(adev->dev, "Wait for MC idle timedout !\n");
 336         }
 337         gmc_v7_0_mc_resume(adev, &save);
 338
 339         WREG32(mmBIF_FB_EN, BIF_FB_EN__FB_READ_EN_MASK | BIF_FB_EN__FB_WRITE_EN_MASK);
 340
 341         tmp = RREG32(mmHDP_MISC_CNTL);
 342         tmp = REG_SET_FIELD(tmp, HDP_MISC_CNTL, FLUSH_INVALIDATE_CACHE, 1);
 343         WREG32(mmHDP_MISC_CNTL, tmp);
 344
 345         tmp = RREG32(mmHDP_HOST_PATH_CNTL);
 346         WREG32(mmHDP_HOST_PATH_CNTL, tmp);
 347 }
 348
 349 /**
 350  * gmc_v7_0_mc_init - initialize the memory controller driver params
 351  *
 352  * @adev: amdgpu_device pointer
 353  *
 354  * Look up the amount of vram, vram width, and decide how to place
 355  * vram and gart within the GPU's physical address space (CIK).
 356  * Returns 0 for success.
 357  */
 358 static int gmc_v7_0_mc_init(struct amdgpu_device *adev)
 359 {
 360         u32 tmp;
 361         int chansize, numchan;
 362
 363         /* Get VRAM informations */
 364         tmp = RREG32(mmMC_ARB_RAMCFG);
 365         if (REG_GET_FIELD(tmp, MC_ARB_RAMCFG, CHANSIZE)) {
 366                 chansize = 64;
 367         } else {
 368                 chansize = 32;
 369         }
 370         tmp = RREG32(mmMC_SHARED_CHMAP);
 371         switch (REG_GET_FIELD(tmp, MC_SHARED_CHMAP, NOOFCHAN)) {
 372         case 0:
 373         default:
 374                 numchan = 1;
 375                 break;
 376         case 1:
 377                 numchan = 2;
 378                 break;
 379         case 2:
 380                 numchan = 4;
 381                 break;
 382         case 3:
 383                 numchan = 8;
 384                 break;
 385         case 4:
 386                 numchan = 3;
 387                 break;
 388         case 5:
 389                 numchan = 6;
 390                 break;
 391         case 6:
 392                 numchan = 10;
 393                 break;
 394         case 7:
 395                 numchan = 12;
 396                 break;
 397         case 8:
 398                 numchan = 16;
 399                 break;
 400         }
 401         adev->mc.vram_width = numchan * chansize;
 402         /* Could aper size report 0 ? */
 403         adev->mc.aper_base = pci_resource_start(adev->pdev, 0);
 404         adev->mc.aper_size = pci_resource_len(adev->pdev, 0);
 405         /* size in MB on si */
 406         adev->mc.mc_vram_size = RREG32(mmCONFIG_MEMSIZE) * 1024ULL * 1024ULL;
 407         adev->mc.real_vram_size = RREG32(mmCONFIG_MEMSIZE) * 1024ULL * 1024ULL;
 408         adev->mc.visible_vram_size = adev->mc.aper_size;
 409
 410         /* unless the user had overridden it, set the gart
 411          * size equal to the 1024 or vram, whichever is larger.
 412          */
 413         if (amdgpu_gart_size == -1)
 414                 adev->mc.gtt_size = max((1024ULL << 20), adev->mc.mc_vram_size);
 415         else
 416                 adev->mc.gtt_size = (uint64_t)amdgpu_gart_size << 20;
 417
 418         gmc_v7_0_vram_gtt_location(adev, &adev->mc);
 419
 420         return 0;
 421 }
 422
 423 /*
 424  * GART
 425  * VMID 0 is the physical GPU addresses as used by the kernel.
 426  * VMIDs 1-15 are used for userspace clients and are handled
 427  * by the amdgpu vm/hsa code.
 428  */
 429
 430 /**
 431  * gmc_v7_0_gart_flush_gpu_tlb - gart tlb flush callback
 432  *
 433  * @adev: amdgpu_device pointer
 434  * @vmid: vm instance to flush
 435  *
 436  * Flush the TLB for the requested page table (CIK).
 437  */
 438 static void gmc_v7_0_gart_flush_gpu_tlb(struct amdgpu_device *adev,
 439                                         uint32_t vmid)
 440 {
 441         /* flush hdp cache */
 442         WREG32(mmHDP_MEM_COHERENCY_FLUSH_CNTL, 0);
 443
 444         /* bits 0-15 are the VM contexts0-15 */
 445         WREG32(mmVM_INVALIDATE_REQUEST, 1 << vmid);
 446 }
 447
 448 /**
 449  * gmc_v7_0_gart_set_pte_pde - update the page tables using MMIO
 450  *
 451  * @adev: amdgpu_device pointer
 452  * @cpu_pt_addr: cpu address of the page table
 453  * @gpu_page_idx: entry in the page table to update
 454  * @addr: dst addr to write into pte/pde
 455  * @flags: access flags
 456  *
 457  * Update the page tables using the CPU.
 458  */
 459 static int gmc_v7_0_gart_set_pte_pde(struct amdgpu_device *adev,
 460                                      void *cpu_pt_addr,
 461                                      uint32_t gpu_page_idx,
 462                                      uint64_t addr,
 463                                      uint32_t flags)
 464 {
 465         void __iomem *ptr = (void *)cpu_pt_addr;
 466         uint64_t value;
 467
 468         value = addr & 0xFFFFFFFFFFFFF000ULL;
 469         value |= flags;
 470         writeq(value, ptr + (gpu_page_idx * 8));
 471
 472         return 0;
 473 }
 474
 475 /**
 476  * gmc_v8_0_set_fault_enable_default - update VM fault handling
 477  *
 478  * @adev: amdgpu_device pointer
 479  * @value: true redirects VM faults to the default page
 480  */
 481 static void gmc_v7_0_set_fault_enable_default(struct amdgpu_device *adev,
 482                                               bool value)
 483 {
 484         u32 tmp;
 485
 486         tmp = RREG32(mmVM_CONTEXT1_CNTL);
 487         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 488                             RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 489         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 490                             DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 491         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 492                             PDE0_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 493         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 494                             VALID_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 495         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 496                             READ_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 497         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 498                             WRITE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 499         WREG32(mmVM_CONTEXT1_CNTL, tmp);
 500 }
 501
 502 /**
 503  * gmc_v7_0_gart_enable - gart enable
 504  *
 505  * @adev: amdgpu_device pointer
 506  *
 507  * This sets up the TLBs, programs the page tables for VMID0,
 508  * sets up the hw for VMIDs 1-15 which are allocated on
 509  * demand, and sets up the global locations for the LDS, GDS,
 510  * and GPUVM for FSA64 clients (CIK).
 511  * Returns 0 for success, errors for failure.
 512  */
 513 static int gmc_v7_0_gart_enable(struct amdgpu_device *adev)
 514 {
 515         int r, i;
 516         u32 tmp;
 517
 518         if (adev->gart.robj == NULL) {
 519                 dev_err(adev->dev, "No VRAM object for PCIE GART.\n");
 520                 return -EINVAL;
 521         }
 522         r = amdgpu_gart_table_vram_pin(adev);
 523         if (r)
 524                 return r;
 525         /* Setup TLB control */
 526         tmp = RREG32(mmMC_VM_MX_L1_TLB_CNTL);
 527         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 1);
 528         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_FRAGMENT_PROCESSING, 1);
 529         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, SYSTEM_ACCESS_MODE, 3);
 530         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_ADVANCED_DRIVER_MODEL, 1);
 531         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, SYSTEM_APERTURE_UNMAPPED_ACCESS, 0);
 532         WREG32(mmMC_VM_MX_L1_TLB_CNTL, tmp);
 533         /* Setup L2 cache */
 534         tmp = RREG32(mmVM_L2_CNTL);
 535         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_CACHE, 1);
 536         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_FRAGMENT_PROCESSING, 1);
 537         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_PTE_CACHE_LRU_UPDATE_BY_WRITE, 1);
 538         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_PDE0_CACHE_LRU_UPDATE_BY_WRITE, 1);
 539         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, EFFECTIVE_L2_QUEUE_SIZE, 7);
 540         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, CONTEXT1_IDENTITY_ACCESS_MODE, 1);
 541         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_DEFAULT_PAGE_OUT_TO_SYSTEM_MEMORY, 1);
 542         WREG32(mmVM_L2_CNTL, tmp);
 543         tmp = REG_SET_FIELD(0, VM_L2_CNTL2, INVALIDATE_ALL_L1_TLBS, 1);
 544         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL2, INVALIDATE_L2_CACHE, 1);
 545         WREG32(mmVM_L2_CNTL2, tmp);
 546         tmp = RREG32(mmVM_L2_CNTL3);
 547         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, L2_CACHE_BIGK_ASSOCIATIVITY, 1);
 548         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, BANK_SELECT, 4);
 549         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, L2_CACHE_BIGK_FRAGMENT_SIZE, 4);
 550         WREG32(mmVM_L2_CNTL3, tmp);
 551         /* setup context0 */
 552         WREG32(mmVM_CONTEXT0_PAGE_TABLE_START_ADDR, adev->mc.gtt_start >> 12);
 553         WREG32(mmVM_CONTEXT0_PAGE_TABLE_END_ADDR, adev->mc.gtt_end >> 12);
 554         WREG32(mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR, adev->gart.table_addr >> 12);
 555         WREG32(mmVM_CONTEXT0_PROTECTION_FAULT_DEFAULT_ADDR,
 556                         (u32)(adev->dummy_page.addr >> 12));
 557         WREG32(mmVM_CONTEXT0_CNTL2, 0);
 558         tmp = RREG32(mmVM_CONTEXT0_CNTL);
 559         tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, ENABLE_CONTEXT, 1);
 560         tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, PAGE_TABLE_DEPTH, 0);
 561         tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 562         WREG32(mmVM_CONTEXT0_CNTL, tmp);
 563
 564         WREG32(0x575, 0);
 565         WREG32(0x576, 0);
 566         WREG32(0x577, 0);
 567
 568         /* empty context1-15 */
 569         /* FIXME start with 4G, once using 2 level pt switch to full
 570          * vm size space
 571          */
 572         /* set vm size, must be a multiple of 4 */
 573         WREG32(mmVM_CONTEXT1_PAGE_TABLE_START_ADDR, 0);
 574         WREG32(mmVM_CONTEXT1_PAGE_TABLE_END_ADDR, adev->vm_manager.max_pfn - 1);
 575         for (i = 1; i < 16; i++) {
 576                 if (i < 8)
 577                         WREG32(mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR + i,
 578                                adev->gart.table_addr >> 12);
 579                 else
 580                         WREG32(mmVM_CONTEXT8_PAGE_TABLE_BASE_ADDR + i - 8,
 581                                adev->gart.table_addr >> 12);
 582         }
 583
 584         /* enable context1-15 */
 585         WREG32(mmVM_CONTEXT1_PROTECTION_FAULT_DEFAULT_ADDR,
 586                (u32)(adev->dummy_page.addr >> 12));
 587         WREG32(mmVM_CONTEXT1_CNTL2, 4);
 588         tmp = RREG32(mmVM_CONTEXT1_CNTL);
 589         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, ENABLE_CONTEXT, 1);
 590         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, PAGE_TABLE_DEPTH, 1);
 591         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, PAGE_TABLE_BLOCK_SIZE,
 592                             amdgpu_vm_block_size - 9);
 593         WREG32(mmVM_CONTEXT1_CNTL, tmp);
 594         if (amdgpu_vm_fault_stop == AMDGPU_VM_FAULT_STOP_ALWAYS)
 595                 gmc_v7_0_set_fault_enable_default(adev, false);
 596         else
 597                 gmc_v7_0_set_fault_enable_default(adev, true);
 598
 599         if (adev->asic_type == CHIP_KAVERI) {
 600                 tmp = RREG32(mmCHUB_CONTROL);
 601                 tmp &= ~BYPASS_VM;
 602                 WREG32(mmCHUB_CONTROL, tmp);
 603         }
 604
 605         gmc_v7_0_gart_flush_gpu_tlb(adev, 0);
 606         DRM_INFO("PCIE GART of %uM enabled (table at 0x%016llX).\n",
 607                  (unsigned)(adev->mc.gtt_size >> 20),
 608                  (unsigned long long)adev->gart.table_addr);
 609         adev->gart.ready = true;
 610         return 0;
 611 }
 612
 613 static int gmc_v7_0_gart_init(struct amdgpu_device *adev)
 614 {
 615         int r;
 616
 617         if (adev->gart.robj) {
 618                 WARN(1, "R600 PCIE GART already initialized\n");
 619                 return 0;
 620         }
 621         /* Initialize common gart structure */
 622         r = amdgpu_gart_init(adev);
 623         if (r)
 624                 return r;
 625         adev->gart.table_size = adev->gart.num_gpu_pages * 8;
 626         return amdgpu_gart_table_vram_alloc(adev);
 627 }
 628
 629 /**
 630  * gmc_v7_0_gart_disable - gart disable
 631  *
 632  * @adev: amdgpu_device pointer
 633  *
 634  * This disables all VM page table (CIK).
 635  */
 636 static void gmc_v7_0_gart_disable(struct amdgpu_device *adev)
 637 {
 638         u32 tmp;
 639
 640         /* Disable all tables */
 641         WREG32(mmVM_CONTEXT0_CNTL, 0);
 642         WREG32(mmVM_CONTEXT1_CNTL, 0);
 643         /* Setup TLB control */
 644         tmp = RREG32(mmMC_VM_MX_L1_TLB_CNTL);
 645         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 0);
 646         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_FRAGMENT_PROCESSING, 0);
 647         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_ADVANCED_DRIVER_MODEL, 0);
 648         WREG32(mmMC_VM_MX_L1_TLB_CNTL, tmp);
 649         /* Setup L2 cache */
 650         tmp = RREG32(mmVM_L2_CNTL);
 651         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_CACHE, 0);
 652         WREG32(mmVM_L2_CNTL, tmp);
 653         WREG32(mmVM_L2_CNTL2, 0);
 654         amdgpu_gart_table_vram_unpin(adev);
 655 }
 656
 657 /**
 658  * gmc_v7_0_gart_fini - vm fini callback
 659  *
 660  * @adev: amdgpu_device pointer
 661  *
 662  * Tears down the driver GART/VM setup (CIK).
 663  */
 664 static void gmc_v7_0_gart_fini(struct amdgpu_device *adev)
 665 {
 666         amdgpu_gart_table_vram_free(adev);
 667         amdgpu_gart_fini(adev);
 668 }
 669
 670 /*
 671  * vm
 672  * VMID 0 is the physical GPU addresses as used by the kernel.
 673  * VMIDs 1-15 are used for userspace clients and are handled
 674  * by the amdgpu vm/hsa code.
 675  */
 676 /**
 677  * gmc_v7_0_vm_init - cik vm init callback
 678  *
 679  * @adev: amdgpu_device pointer
 680  *
 681  * Inits cik specific vm parameters (number of VMs, base of vram for
 682  * VMIDs 1-15) (CIK).
 683  * Returns 0 for success.
 684  */
 685 static int gmc_v7_0_vm_init(struct amdgpu_device *adev)
 686 {
 687         /*
 688          * number of VMs
 689          * VMID 0 is reserved for System
 690          * amdgpu graphics/compute will use VMIDs 1-7
 691          * amdkfd will use VMIDs 8-15
 692          */
 693         adev->vm_manager.nvm = AMDGPU_NUM_OF_VMIDS;
 694
 695         /* base offset of vram pages */
 696         if (adev->flags & AMD_IS_APU) {
 697                 u64 tmp = RREG32(mmMC_VM_FB_OFFSET);
 698                 tmp <<= 22;
 699                 adev->vm_manager.vram_base_offset = tmp;
 700         } else
 701                 adev->vm_manager.vram_base_offset = 0;
 702
 703         return 0;
 704 }
 705
 706 /**
 707  * gmc_v7_0_vm_fini - cik vm fini callback
 708  *
 709  * @adev: amdgpu_device pointer
 710  *
 711  * Tear down any asic specific VM setup (CIK).
 712  */
 713 static void gmc_v7_0_vm_fini(struct amdgpu_device *adev)
 714 {
 715 }
 716
 717 /**
 718  * gmc_v7_0_vm_decode_fault - print human readable fault info
 719  *
 720  * @adev: amdgpu_device pointer
 721  * @status: VM_CONTEXT1_PROTECTION_FAULT_STATUS register value
 722  * @addr: VM_CONTEXT1_PROTECTION_FAULT_ADDR register value
 723  *
 724  * Print human readable fault information (CIK).
 725  */
 726 static void gmc_v7_0_vm_decode_fault(struct amdgpu_device *adev,
 727                                      u32 status, u32 addr, u32 mc_client)
 728 {
 729         u32 mc_id;
 730         u32 vmid = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS, VMID);
 731         u32 protections = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS,
 732                                         PROTECTIONS);
 733         char block[5] = { mc_client >> 24, (mc_client >> 16) & 0xff,
 734                 (mc_client >> 8) & 0xff, mc_client & 0xff, 0 };
 735
 736         mc_id = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS,
 737                               MEMORY_CLIENT_ID);
 738
 739         printk("VM fault (0x%02x, vmid %d) at page %u, %s from '%s' (0x%08x) (%d)\n",
 740                protections, vmid, addr,
 741                REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS,
 742                              MEMORY_CLIENT_RW) ?
 743                "write" : "read", block, mc_client, mc_id);
 744 }
 745
 746
 747 static const u32 mc_cg_registers[] = {
 748         mmMC_HUB_MISC_HUB_CG,
 749         mmMC_HUB_MISC_SIP_CG,
 750         mmMC_HUB_MISC_VM_CG,
 751         mmMC_XPB_CLK_GAT,
 752         mmATC_MISC_CG,
 753         mmMC_CITF_MISC_WR_CG,
 754         mmMC_CITF_MISC_RD_CG,
 755         mmMC_CITF_MISC_VM_CG,
 756         mmVM_L2_CG,
 757 };
 758
 759 static const u32 mc_cg_ls_en[] = {
 760         MC_HUB_MISC_HUB_CG__MEM_LS_ENABLE_MASK,
 761         MC_HUB_MISC_SIP_CG__MEM_LS_ENABLE_MASK,
 762         MC_HUB_MISC_VM_CG__MEM_LS_ENABLE_MASK,
 763         MC_XPB_CLK_GAT__MEM_LS_ENABLE_MASK,
 764         ATC_MISC_CG__MEM_LS_ENABLE_MASK,
 765         MC_CITF_MISC_WR_CG__MEM_LS_ENABLE_MASK,
 766         MC_CITF_MISC_RD_CG__MEM_LS_ENABLE_MASK,
 767         MC_CITF_MISC_VM_CG__MEM_LS_ENABLE_MASK,
 768         VM_L2_CG__MEM_LS_ENABLE_MASK,
 769 };
 770
 771 static const u32 mc_cg_en[] = {
 772         MC_HUB_MISC_HUB_CG__ENABLE_MASK,
 773         MC_HUB_MISC_SIP_CG__ENABLE_MASK,
 774         MC_HUB_MISC_VM_CG__ENABLE_MASK,
 775         MC_XPB_CLK_GAT__ENABLE_MASK,
 776         ATC_MISC_CG__ENABLE_MASK,
 777         MC_CITF_MISC_WR_CG__ENABLE_MASK,
 778         MC_CITF_MISC_RD_CG__ENABLE_MASK,
 779         MC_CITF_MISC_VM_CG__ENABLE_MASK,
 780         VM_L2_CG__ENABLE_MASK,
 781 };
 782
 783 static void gmc_v7_0_enable_mc_ls(struct amdgpu_device *adev,
 784                                   bool enable)
 785 {
 786         int i;
 787         u32 orig, data;
 788
 789         for (i = 0; i < ARRAY_SIZE(mc_cg_registers); i++) {
 790                 orig = data = RREG32(mc_cg_registers[i]);
 791                 if (enable && (adev->cg_flags & AMDGPU_CG_SUPPORT_MC_LS))
 792                         data |= mc_cg_ls_en[i];
 793                 else
 794                         data &= ~mc_cg_ls_en[i];
 795                 if (data != orig)
 796                         WREG32(mc_cg_registers[i], data);
 797         }
 798 }
 799
 800 static void gmc_v7_0_enable_mc_mgcg(struct amdgpu_device *adev,
 801                                     bool enable)
 802 {
 803         int i;
 804         u32 orig, data;
 805
 806         for (i = 0; i < ARRAY_SIZE(mc_cg_registers); i++) {
 807                 orig = data = RREG32(mc_cg_registers[i]);
 808                 if (enable && (adev->cg_flags & AMDGPU_CG_SUPPORT_MC_MGCG))
 809                         data |= mc_cg_en[i];
 810                 else
 811                         data &= ~mc_cg_en[i];
 812                 if (data != orig)
 813                         WREG32(mc_cg_registers[i], data);
 814         }
 815 }
 816
 817 static void gmc_v7_0_enable_bif_mgls(struct amdgpu_device *adev,
 818                                      bool enable)
 819 {
 820         u32 orig, data;
 821
 822         orig = data = RREG32_PCIE(ixPCIE_CNTL2);
 823
 824         if (enable && (adev->cg_flags & AMDGPU_CG_SUPPORT_BIF_LS)) {
 825                 data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_LS_EN, 1);
 826                 data = REG_SET_FIELD(data, PCIE_CNTL2, MST_MEM_LS_EN, 1);
 827                 data = REG_SET_FIELD(data, PCIE_CNTL2, REPLAY_MEM_LS_EN, 1);
 828                 data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_AGGRESSIVE_LS_EN, 1);
 829         } else {
 830                 data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_LS_EN, 0);
 831                 data = REG_SET_FIELD(data, PCIE_CNTL2, MST_MEM_LS_EN, 0);
 832                 data = REG_SET_FIELD(data, PCIE_CNTL2, REPLAY_MEM_LS_EN, 0);
 833                 data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_AGGRESSIVE_LS_EN, 0);
 834         }
 835
 836         if (orig != data)
 837                 WREG32_PCIE(ixPCIE_CNTL2, data);
 838 }
 839
 840 static void gmc_v7_0_enable_hdp_mgcg(struct amdgpu_device *adev,
 841                                      bool enable)
 842 {
 843         u32 orig, data;
 844
 845         orig = data = RREG32(mmHDP_HOST_PATH_CNTL);
 846
 847         if (enable && (adev->cg_flags & AMDGPU_CG_SUPPORT_HDP_MGCG))
 848                 data = REG_SET_FIELD(data, HDP_HOST_PATH_CNTL, CLOCK_GATING_DIS, 0);
 849         else
 850                 data = REG_SET_FIELD(data, HDP_HOST_PATH_CNTL, CLOCK_GATING_DIS, 1);
 851
 852         if (orig != data)
 853                 WREG32(mmHDP_HOST_PATH_CNTL, data);
 854 }
 855
 856 static void gmc_v7_0_enable_hdp_ls(struct amdgpu_device *adev,
 857                                    bool enable)
 858 {
 859         u32 orig, data;
 860
 861         orig = data = RREG32(mmHDP_MEM_POWER_LS);
 862
 863         if (enable && (adev->cg_flags & AMDGPU_CG_SUPPORT_HDP_LS))
 864                 data = REG_SET_FIELD(data, HDP_MEM_POWER_LS, LS_ENABLE, 1);
 865         else
 866                 data = REG_SET_FIELD(data, HDP_MEM_POWER_LS, LS_ENABLE, 0);
 867
 868         if (orig != data)
 869                 WREG32(mmHDP_MEM_POWER_LS, data);
 870 }
 871
 872 static int gmc_v7_0_convert_vram_type(int mc_seq_vram_type)
 873 {
 874         switch (mc_seq_vram_type) {
 875         case MC_SEQ_MISC0__MT__GDDR1:
 876                 return AMDGPU_VRAM_TYPE_GDDR1;
 877         case MC_SEQ_MISC0__MT__DDR2:
 878                 return AMDGPU_VRAM_TYPE_DDR2;
 879         case MC_SEQ_MISC0__MT__GDDR3:
 880                 return AMDGPU_VRAM_TYPE_GDDR3;
 881         case MC_SEQ_MISC0__MT__GDDR4:
 882                 return AMDGPU_VRAM_TYPE_GDDR4;
 883         case MC_SEQ_MISC0__MT__GDDR5:
 884                 return AMDGPU_VRAM_TYPE_GDDR5;
 885         case MC_SEQ_MISC0__MT__HBM:
 886                 return AMDGPU_VRAM_TYPE_HBM;
 887         case MC_SEQ_MISC0__MT__DDR3:
 888                 return AMDGPU_VRAM_TYPE_DDR3;
 889         default:
 890                 return AMDGPU_VRAM_TYPE_UNKNOWN;
 891         }
 892 }
 893
 894 static int gmc_v7_0_early_init(void *handle)
 895 {
 896         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 897
 898         gmc_v7_0_set_gart_funcs(adev);
 899         gmc_v7_0_set_irq_funcs(adev);
 900
 901         if (adev->flags & AMD_IS_APU) {
 902                 adev->mc.vram_type = AMDGPU_VRAM_TYPE_UNKNOWN;
 903         } else {
 904                 u32 tmp = RREG32(mmMC_SEQ_MISC0);
 905                 tmp &= MC_SEQ_MISC0__MT__MASK;
 906                 adev->mc.vram_type = gmc_v7_0_convert_vram_type(tmp);
 907         }
 908
 909         return 0;
 910 }
 911
 912 static int gmc_v7_0_late_init(void *handle)
 913 {
 914         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 915
 916         return amdgpu_irq_get(adev, &adev->mc.vm_fault, 0);
 917 }
 918
 919 static int gmc_v7_0_sw_init(void *handle)
 920 {
 921         int r;
 922         int dma_bits;
 923         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 924
 925         r = amdgpu_gem_init(adev);
 926         if (r)
 927                 return r;
 928
 929         r = amdgpu_irq_add_id(adev, 146, &adev->mc.vm_fault);
 930         if (r)
 931                 return r;
 932
 933         r = amdgpu_irq_add_id(adev, 147, &adev->mc.vm_fault);
 934         if (r)
 935                 return r;
 936
 937         /* Adjust VM size here.
 938          * Currently set to 4GB ((1 << 20) 4k pages).
 939          * Max GPUVM size for cayman and SI is 40 bits.
 940          */
 941         adev->vm_manager.max_pfn = amdgpu_vm_size << 18;
 942
 943         /* Set the internal MC address mask
 944          * This is the max address of the GPU's
 945          * internal address space.
 946          */
 947         adev->mc.mc_mask = 0xffffffffffULL; /* 40 bit MC */
 948
 949         /* set DMA mask + need_dma32 flags.
 950          * PCIE - can handle 40-bits.
 951          * IGP - can handle 40-bits
 952          * PCI - dma32 for legacy pci gart, 40 bits on newer asics
 953          */
 954         adev->need_dma32 = false;
 955         dma_bits = adev->need_dma32 ? 32 : 40;
 956         r = pci_set_dma_mask(adev->pdev, DMA_BIT_MASK(dma_bits));
 957         if (r) {
 958                 adev->need_dma32 = true;
 959                 dma_bits = 32;
 960                 printk(KERN_WARNING "amdgpu: No suitable DMA available.\n");
 961         }
 962         r = pci_set_consistent_dma_mask(adev->pdev, DMA_BIT_MASK(dma_bits));
 963         if (r) {
 964                 pci_set_consistent_dma_mask(adev->pdev, DMA_BIT_MASK(32));
 965                 printk(KERN_WARNING "amdgpu: No coherent DMA available.\n");
 966         }
 967
 968         r = gmc_v7_0_init_microcode(adev);
 969         if (r) {
 970                 DRM_ERROR("Failed to load mc firmware!\n");
 971                 return r;
 972         }
 973
 974         r = gmc_v7_0_mc_init(adev);
 975         if (r)
 976                 return r;
 977
 978         /* Memory manager */
 979         r = amdgpu_bo_init(adev);
 980         if (r)
 981                 return r;
 982
 983         r = gmc_v7_0_gart_init(adev);
 984         if (r)
 985                 return r;
 986
 987         if (!adev->vm_manager.enabled) {
 988                 r = gmc_v7_0_vm_init(adev);
 989                 if (r) {
 990                         dev_err(adev->dev, "vm manager initialization failed (%d).\n", r);
 991                         return r;
 992                 }
 993                 adev->vm_manager.enabled = true;
 994         }
 995
 996         return r;
 997 }
 998
 999 static int gmc_v7_0_sw_fini(void *handle)
1000 {
1001         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1002
1003         if (adev->vm_manager.enabled) {
1004                 amdgpu_vm_manager_fini(adev);
1005                 gmc_v7_0_vm_fini(adev);
1006                 adev->vm_manager.enabled = false;
1007         }
1008         gmc_v7_0_gart_fini(adev);
1009         amdgpu_gem_fini(adev);
1010         amdgpu_bo_fini(adev);
1011
1012         return 0;
1013 }
1014
1015 static int gmc_v7_0_hw_init(void *handle)
1016 {
1017         int r;
1018         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1019
1020         gmc_v7_0_init_golden_registers(adev);
1021
1022         gmc_v7_0_mc_program(adev);
1023
1024         if (!(adev->flags & AMD_IS_APU)) {
1025                 r = gmc_v7_0_mc_load_microcode(adev);
1026                 if (r) {
1027                         DRM_ERROR("Failed to load MC firmware!\n");
1028                         return r;
1029                 }
1030         }
1031
1032         r = gmc_v7_0_gart_enable(adev);
1033         if (r)
1034                 return r;
1035
1036         return r;
1037 }
1038
1039 static int gmc_v7_0_hw_fini(void *handle)
1040 {
1041         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1042
1043         amdgpu_irq_put(adev, &adev->mc.vm_fault, 0);
1044         gmc_v7_0_gart_disable(adev);
1045
1046         return 0;
1047 }
1048
1049 static int gmc_v7_0_suspend(void *handle)
1050 {
1051         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1052
1053         if (adev->vm_manager.enabled) {
1054                 amdgpu_vm_manager_fini(adev);
1055                 gmc_v7_0_vm_fini(adev);
1056                 adev->vm_manager.enabled = false;
1057         }
1058         gmc_v7_0_hw_fini(adev);
1059
1060         return 0;
1061 }
1062
1063 static int gmc_v7_0_resume(void *handle)
1064 {
1065         int r;
1066         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1067
1068         r = gmc_v7_0_hw_init(adev);
1069         if (r)
1070                 return r;
1071
1072         if (!adev->vm_manager.enabled) {
1073                 r = gmc_v7_0_vm_init(adev);
1074                 if (r) {
1075                         dev_err(adev->dev, "vm manager initialization failed (%d).\n", r);
1076                         return r;
1077                 }
1078                 adev->vm_manager.enabled = true;
1079         }
1080
1081         return r;
1082 }
1083
1084 static bool gmc_v7_0_is_idle(void *handle)
1085 {
1086         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1087         u32 tmp = RREG32(mmSRBM_STATUS);
1088
1089         if (tmp & (SRBM_STATUS__MCB_BUSY_MASK | SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK |
1090                    SRBM_STATUS__MCC_BUSY_MASK | SRBM_STATUS__MCD_BUSY_MASK | SRBM_STATUS__VMC_BUSY_MASK))
1091                 return false;
1092
1093         return true;
1094 }
1095
1096 static int gmc_v7_0_wait_for_idle(void *handle)
1097 {
1098         unsigned i;
1099         u32 tmp;
1100         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1101
1102         for (i = 0; i < adev->usec_timeout; i++) {
1103                 /* read MC_STATUS */
1104                 tmp = RREG32(mmSRBM_STATUS) & (SRBM_STATUS__MCB_BUSY_MASK |
1105                                                SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK |
1106                                                SRBM_STATUS__MCC_BUSY_MASK |
1107                                                SRBM_STATUS__MCD_BUSY_MASK |
1108                                                SRBM_STATUS__VMC_BUSY_MASK);
1109                 if (!tmp)
1110                         return 0;
1111                 udelay(1);
1112         }
1113         return -ETIMEDOUT;
1114
1115 }
1116
1117 static void gmc_v7_0_print_status(void *handle)
1118 {
1119         int i, j;
1120         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1121
1122         dev_info(adev->dev, "GMC 8.x registers\n");
1123         dev_info(adev->dev, "  SRBM_STATUS=0x%08X\n",
1124                 RREG32(mmSRBM_STATUS));
1125         dev_info(adev->dev, "  SRBM_STATUS2=0x%08X\n",
1126                 RREG32(mmSRBM_STATUS2));
1127
1128         dev_info(adev->dev, "  VM_CONTEXT1_PROTECTION_FAULT_ADDR   0x%08X\n",
1129                  RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_ADDR));
1130         dev_info(adev->dev, "  VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x%08X\n",
1131                  RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_STATUS));
1132         dev_info(adev->dev, "  MC_VM_MX_L1_TLB_CNTL=0x%08X\n",
1133                  RREG32(mmMC_VM_MX_L1_TLB_CNTL));
1134         dev_info(adev->dev, "  VM_L2_CNTL=0x%08X\n",
1135                  RREG32(mmVM_L2_CNTL));
1136         dev_info(adev->dev, "  VM_L2_CNTL2=0x%08X\n",
1137                  RREG32(mmVM_L2_CNTL2));
1138         dev_info(adev->dev, "  VM_L2_CNTL3=0x%08X\n",
1139                  RREG32(mmVM_L2_CNTL3));
1140         dev_info(adev->dev, "  VM_CONTEXT0_PAGE_TABLE_START_ADDR=0x%08X\n",
1141                  RREG32(mmVM_CONTEXT0_PAGE_TABLE_START_ADDR));
1142         dev_info(adev->dev, "  VM_CONTEXT0_PAGE_TABLE_END_ADDR=0x%08X\n",
1143                  RREG32(mmVM_CONTEXT0_PAGE_TABLE_END_ADDR));
1144         dev_info(adev->dev, "  VM_CONTEXT0_PROTECTION_FAULT_DEFAULT_ADDR=0x%08X\n",
1145                  RREG32(mmVM_CONTEXT0_PROTECTION_FAULT_DEFAULT_ADDR));
1146         dev_info(adev->dev, "  VM_CONTEXT0_CNTL2=0x%08X\n",
1147                  RREG32(mmVM_CONTEXT0_CNTL2));
1148         dev_info(adev->dev, "  VM_CONTEXT0_CNTL=0x%08X\n",
1149                  RREG32(mmVM_CONTEXT0_CNTL));
1150         dev_info(adev->dev, "  0x15D4=0x%08X\n",
1151                  RREG32(0x575));
1152         dev_info(adev->dev, "  0x15D8=0x%08X\n",
1153                  RREG32(0x576));
1154         dev_info(adev->dev, "  0x15DC=0x%08X\n",
1155                  RREG32(0x577));
1156         dev_info(adev->dev, "  VM_CONTEXT1_PAGE_TABLE_START_ADDR=0x%08X\n",
1157                  RREG32(mmVM_CONTEXT1_PAGE_TABLE_START_ADDR));
1158         dev_info(adev->dev, "  VM_CONTEXT1_PAGE_TABLE_END_ADDR=0x%08X\n",
1159                  RREG32(mmVM_CONTEXT1_PAGE_TABLE_END_ADDR));
1160         dev_info(adev->dev, "  VM_CONTEXT1_PROTECTION_FAULT_DEFAULT_ADDR=0x%08X\n",
1161                  RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_DEFAULT_ADDR));
1162         dev_info(adev->dev, "  VM_CONTEXT1_CNTL2=0x%08X\n",
1163                  RREG32(mmVM_CONTEXT1_CNTL2));
1164         dev_info(adev->dev, "  VM_CONTEXT1_CNTL=0x%08X\n",
1165                  RREG32(mmVM_CONTEXT1_CNTL));
1166         for (i = 0; i < 16; i++) {
1167                 if (i < 8)
1168                         dev_info(adev->dev, "  VM_CONTEXT%d_PAGE_TABLE_BASE_ADDR=0x%08X\n",
1169                                  i, RREG32(mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR + i));
1170                 else
1171                         dev_info(adev->dev, "  VM_CONTEXT%d_PAGE_TABLE_BASE_ADDR=0x%08X\n",
1172                                  i, RREG32(mmVM_CONTEXT8_PAGE_TABLE_BASE_ADDR + i - 8));
1173         }
1174         dev_info(adev->dev, "  MC_VM_SYSTEM_APERTURE_LOW_ADDR=0x%08X\n",
1175                  RREG32(mmMC_VM_SYSTEM_APERTURE_LOW_ADDR));
1176         dev_info(adev->dev, "  MC_VM_SYSTEM_APERTURE_HIGH_ADDR=0x%08X\n",
1177                  RREG32(mmMC_VM_SYSTEM_APERTURE_HIGH_ADDR));
1178         dev_info(adev->dev, "  MC_VM_SYSTEM_APERTURE_DEFAULT_ADDR=0x%08X\n",
1179                  RREG32(mmMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR));
1180         dev_info(adev->dev, "  MC_VM_FB_LOCATION=0x%08X\n",
1181                  RREG32(mmMC_VM_FB_LOCATION));
1182         dev_info(adev->dev, "  MC_VM_AGP_BASE=0x%08X\n",
1183                  RREG32(mmMC_VM_AGP_BASE));
1184         dev_info(adev->dev, "  MC_VM_AGP_TOP=0x%08X\n",
1185                  RREG32(mmMC_VM_AGP_TOP));
1186         dev_info(adev->dev, "  MC_VM_AGP_BOT=0x%08X\n",
1187                  RREG32(mmMC_VM_AGP_BOT));
1188
1189         if (adev->asic_type == CHIP_KAVERI) {
1190                 dev_info(adev->dev, "  CHUB_CONTROL=0x%08X\n",
1191                          RREG32(mmCHUB_CONTROL));
1192         }
1193
1194         dev_info(adev->dev, "  HDP_REG_COHERENCY_FLUSH_CNTL=0x%08X\n",
1195                  RREG32(mmHDP_REG_COHERENCY_FLUSH_CNTL));
1196         dev_info(adev->dev, "  HDP_NONSURFACE_BASE=0x%08X\n",
1197                  RREG32(mmHDP_NONSURFACE_BASE));
1198         dev_info(adev->dev, "  HDP_NONSURFACE_INFO=0x%08X\n",
1199                  RREG32(mmHDP_NONSURFACE_INFO));
1200         dev_info(adev->dev, "  HDP_NONSURFACE_SIZE=0x%08X\n",
1201                  RREG32(mmHDP_NONSURFACE_SIZE));
1202         dev_info(adev->dev, "  HDP_MISC_CNTL=0x%08X\n",
1203                  RREG32(mmHDP_MISC_CNTL));
1204         dev_info(adev->dev, "  HDP_HOST_PATH_CNTL=0x%08X\n",
1205                  RREG32(mmHDP_HOST_PATH_CNTL));
1206
1207         for (i = 0, j = 0; i < 32; i++, j += 0x6) {
1208                 dev_info(adev->dev, "  %d:\n", i);
1209                 dev_info(adev->dev, "  0x%04X=0x%08X\n",
1210                          0xb05 + j, RREG32(0xb05 + j));
1211                 dev_info(adev->dev, "  0x%04X=0x%08X\n",
1212                          0xb06 + j, RREG32(0xb06 + j));
1213                 dev_info(adev->dev, "  0x%04X=0x%08X\n",
1214                          0xb07 + j, RREG32(0xb07 + j));
1215                 dev_info(adev->dev, "  0x%04X=0x%08X\n",
1216                          0xb08 + j, RREG32(0xb08 + j));
1217                 dev_info(adev->dev, "  0x%04X=0x%08X\n",
1218                          0xb09 + j, RREG32(0xb09 + j));
1219         }
1220
1221         dev_info(adev->dev, "  BIF_FB_EN=0x%08X\n",
1222                  RREG32(mmBIF_FB_EN));
1223 }
1224
1225 static int gmc_v7_0_soft_reset(void *handle)
1226 {
1227         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1228         struct amdgpu_mode_mc_save save;
1229         u32 srbm_soft_reset = 0;
1230         u32 tmp = RREG32(mmSRBM_STATUS);
1231
1232         if (tmp & SRBM_STATUS__VMC_BUSY_MASK)
1233                 srbm_soft_reset = REG_SET_FIELD(srbm_soft_reset,
1234                                                 SRBM_SOFT_RESET, SOFT_RESET_VMC, 1);
1235
1236         if (tmp & (SRBM_STATUS__MCB_BUSY_MASK | SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK |
1237                    SRBM_STATUS__MCC_BUSY_MASK | SRBM_STATUS__MCD_BUSY_MASK)) {
1238                 if (!(adev->flags & AMD_IS_APU))
1239                         srbm_soft_reset = REG_SET_FIELD(srbm_soft_reset,
1240                                                         SRBM_SOFT_RESET, SOFT_RESET_MC, 1);
1241         }
1242
1243         if (srbm_soft_reset) {
1244                 gmc_v7_0_print_status((void *)adev);
1245
1246                 gmc_v7_0_mc_stop(adev, &save);
1247                 if (gmc_v7_0_wait_for_idle(adev)) {
1248                         dev_warn(adev->dev, "Wait for GMC idle timed out !\n");
1249                 }
1250
1251
1252                 tmp = RREG32(mmSRBM_SOFT_RESET);
1253                 tmp |= srbm_soft_reset;
1254                 dev_info(adev->dev, "SRBM_SOFT_RESET=0x%08X\n", tmp);
1255                 WREG32(mmSRBM_SOFT_RESET, tmp);
1256                 tmp = RREG32(mmSRBM_SOFT_RESET);
1257
1258                 udelay(50);
1259
1260                 tmp &= ~srbm_soft_reset;
1261                 WREG32(mmSRBM_SOFT_RESET, tmp);
1262                 tmp = RREG32(mmSRBM_SOFT_RESET);
1263
1264                 /* Wait a little for things to settle down */
1265                 udelay(50);
1266
1267                 gmc_v7_0_mc_resume(adev, &save);
1268                 udelay(50);
1269
1270                 gmc_v7_0_print_status((void *)adev);
1271         }
1272
1273         return 0;
1274 }
1275
1276 static int gmc_v7_0_vm_fault_interrupt_state(struct amdgpu_device *adev,
1277                                              struct amdgpu_irq_src *src,
1278                                              unsigned type,
1279                                              enum amdgpu_interrupt_state state)
1280 {
1281         u32 tmp;
1282         u32 bits = (VM_CONTEXT1_CNTL__RANGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1283                     VM_CONTEXT1_CNTL__DUMMY_PAGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1284                     VM_CONTEXT1_CNTL__PDE0_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1285                     VM_CONTEXT1_CNTL__VALID_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1286                     VM_CONTEXT1_CNTL__READ_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1287                     VM_CONTEXT1_CNTL__WRITE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK);
1288
1289         switch (state) {
1290         case AMDGPU_IRQ_STATE_DISABLE:
1291                 /* system context */
1292                 tmp = RREG32(mmVM_CONTEXT0_CNTL);
1293                 tmp &= ~bits;
1294                 WREG32(mmVM_CONTEXT0_CNTL, tmp);
1295                 /* VMs */
1296                 tmp = RREG32(mmVM_CONTEXT1_CNTL);
1297                 tmp &= ~bits;
1298                 WREG32(mmVM_CONTEXT1_CNTL, tmp);
1299                 break;
1300         case AMDGPU_IRQ_STATE_ENABLE:
1301                 /* system context */
1302                 tmp = RREG32(mmVM_CONTEXT0_CNTL);
1303                 tmp |= bits;
1304                 WREG32(mmVM_CONTEXT0_CNTL, tmp);
1305                 /* VMs */
1306                 tmp = RREG32(mmVM_CONTEXT1_CNTL);
1307                 tmp |= bits;
1308                 WREG32(mmVM_CONTEXT1_CNTL, tmp);
1309                 break;
1310         default:
1311                 break;
1312         }
1313
1314         return 0;
1315 }
1316
1317 static int gmc_v7_0_process_interrupt(struct amdgpu_device *adev,
1318                                       struct amdgpu_irq_src *source,
1319                                       struct amdgpu_iv_entry *entry)
1320 {
1321         u32 addr, status, mc_client;
1322
1323         addr = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_ADDR);
1324         status = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_STATUS);
1325         mc_client = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_MCCLIENT);
1326         /* reset addr and status */
1327         WREG32_P(mmVM_CONTEXT1_CNTL2, 1, ~1);
1328
1329         if (!addr && !status)
1330                 return 0;
1331
1332         if (amdgpu_vm_fault_stop == AMDGPU_VM_FAULT_STOP_FIRST)
1333                 gmc_v7_0_set_fault_enable_default(adev, false);
1334
1335         dev_err(adev->dev, "GPU fault detected: %d 0x%08x\n",
1336                 entry->src_id, entry->src_data);
1337         dev_err(adev->dev, "  VM_CONTEXT1_PROTECTION_FAULT_ADDR   0x%08X\n",
1338                 addr);
1339         dev_err(adev->dev, "  VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x%08X\n",
1340                 status);
1341         gmc_v7_0_vm_decode_fault(adev, status, addr, mc_client);
1342
1343         return 0;
1344 }
1345
1346 static int gmc_v7_0_set_clockgating_state(void *handle,
1347                                           enum amd_clockgating_state state)
1348 {
1349         bool gate = false;
1350         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1351
1352         if (state == AMD_CG_STATE_GATE)
1353                 gate = true;
1354
1355         if (!(adev->flags & AMD_IS_APU)) {
1356                 gmc_v7_0_enable_mc_mgcg(adev, gate);
1357                 gmc_v7_0_enable_mc_ls(adev, gate);
1358         }
1359         gmc_v7_0_enable_bif_mgls(adev, gate);
1360         gmc_v7_0_enable_hdp_mgcg(adev, gate);
1361         gmc_v7_0_enable_hdp_ls(adev, gate);
1362
1363         return 0;
1364 }
1365
1366 static int gmc_v7_0_set_powergating_state(void *handle,
1367                                           enum amd_powergating_state state)
1368 {
1369         return 0;
1370 }
1371
1372 const struct amd_ip_funcs gmc_v7_0_ip_funcs = {
1373         .early_init = gmc_v7_0_early_init,
1374         .late_init = gmc_v7_0_late_init,
1375         .sw_init = gmc_v7_0_sw_init,
1376         .sw_fini = gmc_v7_0_sw_fini,
1377         .hw_init = gmc_v7_0_hw_init,
1378         .hw_fini = gmc_v7_0_hw_fini,
1379         .suspend = gmc_v7_0_suspend,
1380         .resume = gmc_v7_0_resume,
1381         .is_idle = gmc_v7_0_is_idle,
1382         .wait_for_idle = gmc_v7_0_wait_for_idle,
1383         .soft_reset = gmc_v7_0_soft_reset,
1384         .print_status = gmc_v7_0_print_status,
1385         .set_clockgating_state = gmc_v7_0_set_clockgating_state,
1386         .set_powergating_state = gmc_v7_0_set_powergating_state,
1387 };
1388
1389 static const struct amdgpu_gart_funcs gmc_v7_0_gart_funcs = {
1390         .flush_gpu_tlb = gmc_v7_0_gart_flush_gpu_tlb,
1391         .set_pte_pde = gmc_v7_0_gart_set_pte_pde,
1392 };
1393
1394 static const struct amdgpu_irq_src_funcs gmc_v7_0_irq_funcs = {
1395         .set = gmc_v7_0_vm_fault_interrupt_state,
1396         .process = gmc_v7_0_process_interrupt,
1397 };
1398
1399 static void gmc_v7_0_set_gart_funcs(struct amdgpu_device *adev)
1400 {
1401         if (adev->gart.gart_funcs == NULL)
1402                 adev->gart.gart_funcs = &gmc_v7_0_gart_funcs;
1403 }
1404
1405 static void gmc_v7_0_set_irq_funcs(struct amdgpu_device *adev)
1406 {
1407         adev->mc.vm_fault.num_types = 1;
1408         adev->mc.vm_fault.funcs = &gmc_v7_0_irq_funcs;
1409 }