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

   1 /*
   2  * Copyright 2014 Advanced Micro Devices, Inc.
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice shall be included in
  12  * all copies or substantial portions of the Software.
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  20  * OTHER DEALINGS IN THE SOFTWARE.
  21  *
  22  */
  23 #include <linux/firmware.h>
  24 #include <drm/drmP.h>
  25 #include "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 #include "dce/dce_8_0_d.h"
  41 #include "dce/dce_8_0_sh_mask.h"
  42
  43 #include "amdgpu_atombios.h"
  44
  45 static void gmc_v7_0_set_gart_funcs(struct amdgpu_device *adev);
  46 static void gmc_v7_0_set_irq_funcs(struct amdgpu_device *adev);
  47 static int gmc_v7_0_wait_for_idle(void *handle);
  48
  49 MODULE_FIRMWARE("radeon/bonaire_mc.bin");
  50 MODULE_FIRMWARE("radeon/hawaii_mc.bin");
  51 MODULE_FIRMWARE("amdgpu/topaz_mc.bin");
  52
  53 static const u32 golden_settings_iceland_a11[] =
  54 {
  55         mmVM_PRT_APERTURE0_LOW_ADDR, 0x0fffffff, 0x0fffffff,
  56         mmVM_PRT_APERTURE1_LOW_ADDR, 0x0fffffff, 0x0fffffff,
  57         mmVM_PRT_APERTURE2_LOW_ADDR, 0x0fffffff, 0x0fffffff,
  58         mmVM_PRT_APERTURE3_LOW_ADDR, 0x0fffffff, 0x0fffffff
  59 };
  60
  61 static const u32 iceland_mgcg_cgcg_init[] =
  62 {
  63         mmMC_MEM_POWER_LS, 0xffffffff, 0x00000104
  64 };
  65
  66 static void gmc_v7_0_init_golden_registers(struct amdgpu_device *adev)
  67 {
  68         switch (adev->asic_type) {
  69         case CHIP_TOPAZ:
  70                 amdgpu_program_register_sequence(adev,
  71                                                  iceland_mgcg_cgcg_init,
  72                                                  (const u32)ARRAY_SIZE(iceland_mgcg_cgcg_init));
  73                 amdgpu_program_register_sequence(adev,
  74                                                  golden_settings_iceland_a11,
  75                                                  (const u32)ARRAY_SIZE(golden_settings_iceland_a11));
  76                 break;
  77         default:
  78                 break;
  79         }
  80 }
  81
  82 static void gmc_v7_0_mc_stop(struct amdgpu_device *adev)
  83 {
  84         u32 blackout;
  85
  86         gmc_v7_0_wait_for_idle((void *)adev);
  87
  88         blackout = RREG32(mmMC_SHARED_BLACKOUT_CNTL);
  89         if (REG_GET_FIELD(blackout, MC_SHARED_BLACKOUT_CNTL, BLACKOUT_MODE) != 1) {
  90                 /* Block CPU access */
  91                 WREG32(mmBIF_FB_EN, 0);
  92                 /* blackout the MC */
  93                 blackout = REG_SET_FIELD(blackout,
  94                                          MC_SHARED_BLACKOUT_CNTL, BLACKOUT_MODE, 0);
  95                 WREG32(mmMC_SHARED_BLACKOUT_CNTL, blackout | 1);
  96         }
  97         /* wait for the MC to settle */
  98         udelay(100);
  99 }
 100
 101 static void gmc_v7_0_mc_resume(struct amdgpu_device *adev)
 102 {
 103         u32 tmp;
 104
 105         /* unblackout the MC */
 106         tmp = RREG32(mmMC_SHARED_BLACKOUT_CNTL);
 107         tmp = REG_SET_FIELD(tmp, MC_SHARED_BLACKOUT_CNTL, BLACKOUT_MODE, 0);
 108         WREG32(mmMC_SHARED_BLACKOUT_CNTL, tmp);
 109         /* allow CPU access */
 110         tmp = REG_SET_FIELD(0, BIF_FB_EN, FB_READ_EN, 1);
 111         tmp = REG_SET_FIELD(tmp, BIF_FB_EN, FB_WRITE_EN, 1);
 112         WREG32(mmBIF_FB_EN, tmp);
 113 }
 114
 115 /**
 116  * gmc_v7_0_init_microcode - load ucode images from disk
 117  *
 118  * @adev: amdgpu_device pointer
 119  *
 120  * Use the firmware interface to load the ucode images into
 121  * the driver (not loaded into hw).
 122  * Returns 0 on success, error on failure.
 123  */
 124 static int gmc_v7_0_init_microcode(struct amdgpu_device *adev)
 125 {
 126         const char *chip_name;
 127         char fw_name[30];
 128         int err;
 129
 130         DRM_DEBUG("\n");
 131
 132         switch (adev->asic_type) {
 133         case CHIP_BONAIRE:
 134                 chip_name = "bonaire";
 135                 break;
 136         case CHIP_HAWAII:
 137                 chip_name = "hawaii";
 138                 break;
 139         case CHIP_TOPAZ:
 140                 chip_name = "topaz";
 141                 break;
 142         case CHIP_KAVERI:
 143         case CHIP_KABINI:
 144         case CHIP_MULLINS:
 145                 return 0;
 146         default: BUG();
 147         }
 148
 149         if (adev->asic_type == CHIP_TOPAZ)
 150                 snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_mc.bin", chip_name);
 151         else
 152                 snprintf(fw_name, sizeof(fw_name), "radeon/%s_mc.bin", chip_name);
 153
 154         err = request_firmware(&adev->mc.fw, fw_name, adev->dev);
 155         if (err)
 156                 goto out;
 157         err = amdgpu_ucode_validate(adev->mc.fw);
 158
 159 out:
 160         if (err) {
 161                 pr_err("cik_mc: Failed to load firmware \"%s\"\n", fw_name);
 162                 release_firmware(adev->mc.fw);
 163                 adev->mc.fw = NULL;
 164         }
 165         return err;
 166 }
 167
 168 /**
 169  * gmc_v7_0_mc_load_microcode - load MC ucode into the hw
 170  *
 171  * @adev: amdgpu_device pointer
 172  *
 173  * Load the GDDR MC ucode into the hw (CIK).
 174  * Returns 0 on success, error on failure.
 175  */
 176 static int gmc_v7_0_mc_load_microcode(struct amdgpu_device *adev)
 177 {
 178         const struct mc_firmware_header_v1_0 *hdr;
 179         const __le32 *fw_data = NULL;
 180         const __le32 *io_mc_regs = NULL;
 181         u32 running;
 182         int i, ucode_size, regs_size;
 183
 184         if (!adev->mc.fw)
 185                 return -EINVAL;
 186
 187         hdr = (const struct mc_firmware_header_v1_0 *)adev->mc.fw->data;
 188         amdgpu_ucode_print_mc_hdr(&hdr->header);
 189
 190         adev->mc.fw_version = le32_to_cpu(hdr->header.ucode_version);
 191         regs_size = le32_to_cpu(hdr->io_debug_size_bytes) / (4 * 2);
 192         io_mc_regs = (const __le32 *)
 193                 (adev->mc.fw->data + le32_to_cpu(hdr->io_debug_array_offset_bytes));
 194         ucode_size = le32_to_cpu(hdr->header.ucode_size_bytes) / 4;
 195         fw_data = (const __le32 *)
 196                 (adev->mc.fw->data + le32_to_cpu(hdr->header.ucode_array_offset_bytes));
 197
 198         running = REG_GET_FIELD(RREG32(mmMC_SEQ_SUP_CNTL), MC_SEQ_SUP_CNTL, RUN);
 199
 200         if (running == 0) {
 201                 /* reset the engine and set to writable */
 202                 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000008);
 203                 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000010);
 204
 205                 /* load mc io regs */
 206                 for (i = 0; i < regs_size; i++) {
 207                         WREG32(mmMC_SEQ_IO_DEBUG_INDEX, le32_to_cpup(io_mc_regs++));
 208                         WREG32(mmMC_SEQ_IO_DEBUG_DATA, le32_to_cpup(io_mc_regs++));
 209                 }
 210                 /* load the MC ucode */
 211                 for (i = 0; i < ucode_size; i++)
 212                         WREG32(mmMC_SEQ_SUP_PGM, le32_to_cpup(fw_data++));
 213
 214                 /* put the engine back into the active state */
 215                 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000008);
 216                 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000004);
 217                 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000001);
 218
 219                 /* wait for training to complete */
 220                 for (i = 0; i < adev->usec_timeout; i++) {
 221                         if (REG_GET_FIELD(RREG32(mmMC_SEQ_TRAIN_WAKEUP_CNTL),
 222                                           MC_SEQ_TRAIN_WAKEUP_CNTL, TRAIN_DONE_D0))
 223                                 break;
 224                         udelay(1);
 225                 }
 226                 for (i = 0; i < adev->usec_timeout; i++) {
 227                         if (REG_GET_FIELD(RREG32(mmMC_SEQ_TRAIN_WAKEUP_CNTL),
 228                                           MC_SEQ_TRAIN_WAKEUP_CNTL, TRAIN_DONE_D1))
 229                                 break;
 230                         udelay(1);
 231                 }
 232         }
 233
 234         return 0;
 235 }
 236
 237 static void gmc_v7_0_vram_gtt_location(struct amdgpu_device *adev,
 238                                        struct amdgpu_mc *mc)
 239 {
 240         u64 base = RREG32(mmMC_VM_FB_LOCATION) & 0xFFFF;
 241         base <<= 24;
 242
 243         if (mc->mc_vram_size > 0xFFC0000000ULL) {
 244                 /* leave room for at least 1024M GTT */
 245                 dev_warn(adev->dev, "limiting VRAM\n");
 246                 mc->real_vram_size = 0xFFC0000000ULL;
 247                 mc->mc_vram_size = 0xFFC0000000ULL;
 248         }
 249         amdgpu_vram_location(adev, &adev->mc, base);
 250         amdgpu_gart_location(adev, mc);
 251 }
 252
 253 /**
 254  * gmc_v7_0_mc_program - program the GPU memory controller
 255  *
 256  * @adev: amdgpu_device pointer
 257  *
 258  * Set the location of vram, gart, and AGP in the GPU's
 259  * physical address space (CIK).
 260  */
 261 static void gmc_v7_0_mc_program(struct amdgpu_device *adev)
 262 {
 263         u32 tmp;
 264         int i, j;
 265
 266         /* Initialize HDP */
 267         for (i = 0, j = 0; i < 32; i++, j += 0x6) {
 268                 WREG32((0xb05 + j), 0x00000000);
 269                 WREG32((0xb06 + j), 0x00000000);
 270                 WREG32((0xb07 + j), 0x00000000);
 271                 WREG32((0xb08 + j), 0x00000000);
 272                 WREG32((0xb09 + j), 0x00000000);
 273         }
 274         WREG32(mmHDP_REG_COHERENCY_FLUSH_CNTL, 0);
 275
 276         if (gmc_v7_0_wait_for_idle((void *)adev)) {
 277                 dev_warn(adev->dev, "Wait for MC idle timedout !\n");
 278         }
 279         if (adev->mode_info.num_crtc) {
 280                 /* Lockout access through VGA aperture*/
 281                 tmp = RREG32(mmVGA_HDP_CONTROL);
 282                 tmp = REG_SET_FIELD(tmp, VGA_HDP_CONTROL, VGA_MEMORY_DISABLE, 1);
 283                 WREG32(mmVGA_HDP_CONTROL, tmp);
 284
 285                 /* disable VGA render */
 286                 tmp = RREG32(mmVGA_RENDER_CONTROL);
 287                 tmp = REG_SET_FIELD(tmp, VGA_RENDER_CONTROL, VGA_VSTATUS_CNTL, 0);
 288                 WREG32(mmVGA_RENDER_CONTROL, tmp);
 289         }
 290         /* Update configuration */
 291         WREG32(mmMC_VM_SYSTEM_APERTURE_LOW_ADDR,
 292                adev->mc.vram_start >> 12);
 293         WREG32(mmMC_VM_SYSTEM_APERTURE_HIGH_ADDR,
 294                adev->mc.vram_end >> 12);
 295         WREG32(mmMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR,
 296                adev->vram_scratch.gpu_addr >> 12);
 297         WREG32(mmMC_VM_AGP_BASE, 0);
 298         WREG32(mmMC_VM_AGP_TOP, 0x0FFFFFFF);
 299         WREG32(mmMC_VM_AGP_BOT, 0x0FFFFFFF);
 300         if (gmc_v7_0_wait_for_idle((void *)adev)) {
 301                 dev_warn(adev->dev, "Wait for MC idle timedout !\n");
 302         }
 303
 304         WREG32(mmBIF_FB_EN, BIF_FB_EN__FB_READ_EN_MASK | BIF_FB_EN__FB_WRITE_EN_MASK);
 305
 306         tmp = RREG32(mmHDP_MISC_CNTL);
 307         tmp = REG_SET_FIELD(tmp, HDP_MISC_CNTL, FLUSH_INVALIDATE_CACHE, 0);
 308         WREG32(mmHDP_MISC_CNTL, tmp);
 309
 310         tmp = RREG32(mmHDP_HOST_PATH_CNTL);
 311         WREG32(mmHDP_HOST_PATH_CNTL, tmp);
 312 }
 313
 314 /**
 315  * gmc_v7_0_mc_init - initialize the memory controller driver params
 316  *
 317  * @adev: amdgpu_device pointer
 318  *
 319  * Look up the amount of vram, vram width, and decide how to place
 320  * vram and gart within the GPU's physical address space (CIK).
 321  * Returns 0 for success.
 322  */
 323 static int gmc_v7_0_mc_init(struct amdgpu_device *adev)
 324 {
 325         adev->mc.vram_width = amdgpu_atombios_get_vram_width(adev);
 326         if (!adev->mc.vram_width) {
 327                 u32 tmp;
 328                 int chansize, numchan;
 329
 330                 /* Get VRAM informations */
 331                 tmp = RREG32(mmMC_ARB_RAMCFG);
 332                 if (REG_GET_FIELD(tmp, MC_ARB_RAMCFG, CHANSIZE)) {
 333                         chansize = 64;
 334                 } else {
 335                         chansize = 32;
 336                 }
 337                 tmp = RREG32(mmMC_SHARED_CHMAP);
 338                 switch (REG_GET_FIELD(tmp, MC_SHARED_CHMAP, NOOFCHAN)) {
 339                 case 0:
 340                 default:
 341                         numchan = 1;
 342                         break;
 343                 case 1:
 344                         numchan = 2;
 345                         break;
 346                 case 2:
 347                         numchan = 4;
 348                         break;
 349                 case 3:
 350                         numchan = 8;
 351                         break;
 352                 case 4:
 353                         numchan = 3;
 354                         break;
 355                 case 5:
 356                         numchan = 6;
 357                         break;
 358                 case 6:
 359                         numchan = 10;
 360                         break;
 361                 case 7:
 362                         numchan = 12;
 363                         break;
 364                 case 8:
 365                         numchan = 16;
 366                         break;
 367                 }
 368                 adev->mc.vram_width = numchan * chansize;
 369         }
 370         /* Could aper size report 0 ? */
 371         adev->mc.aper_base = pci_resource_start(adev->pdev, 0);
 372         adev->mc.aper_size = pci_resource_len(adev->pdev, 0);
 373         /* size in MB on si */
 374         adev->mc.mc_vram_size = RREG32(mmCONFIG_MEMSIZE) * 1024ULL * 1024ULL;
 375         adev->mc.real_vram_size = RREG32(mmCONFIG_MEMSIZE) * 1024ULL * 1024ULL;
 376
 377 #ifdef CONFIG_X86_64
 378         if (adev->flags & AMD_IS_APU) {
 379                 adev->mc.aper_base = ((u64)RREG32(mmMC_VM_FB_OFFSET)) << 22;
 380                 adev->mc.aper_size = adev->mc.real_vram_size;
 381         }
 382 #endif
 383
 384         /* In case the PCI BAR is larger than the actual amount of vram */
 385         adev->mc.visible_vram_size = adev->mc.aper_size;
 386         if (adev->mc.visible_vram_size > adev->mc.real_vram_size)
 387                 adev->mc.visible_vram_size = adev->mc.real_vram_size;
 388
 389         /* set the gart size */
 390         if (amdgpu_gart_size == -1) {
 391                 switch (adev->asic_type) {
 392                 case CHIP_TOPAZ:     /* no MM engines */
 393                 default:
 394                         adev->mc.gart_size = 256ULL << 20;
 395                         break;
 396 #ifdef CONFIG_DRM_AMDGPU_CIK
 397                 case CHIP_BONAIRE: /* UVD, VCE do not support GPUVM */
 398                 case CHIP_HAWAII:  /* UVD, VCE do not support GPUVM */
 399                 case CHIP_KAVERI:  /* UVD, VCE do not support GPUVM */
 400                 case CHIP_KABINI:  /* UVD, VCE do not support GPUVM */
 401                 case CHIP_MULLINS: /* UVD, VCE do not support GPUVM */
 402                         adev->mc.gart_size = 1024ULL << 20;
 403                         break;
 404 #endif
 405                 }
 406         } else {
 407                 adev->mc.gart_size = (u64)amdgpu_gart_size << 20;
 408         }
 409
 410         gmc_v7_0_vram_gtt_location(adev, &adev->mc);
 411
 412         return 0;
 413 }
 414
 415 /*
 416  * GART
 417  * VMID 0 is the physical GPU addresses as used by the kernel.
 418  * VMIDs 1-15 are used for userspace clients and are handled
 419  * by the amdgpu vm/hsa code.
 420  */
 421
 422 /**
 423  * gmc_v7_0_gart_flush_gpu_tlb - gart tlb flush callback
 424  *
 425  * @adev: amdgpu_device pointer
 426  * @vmid: vm instance to flush
 427  *
 428  * Flush the TLB for the requested page table (CIK).
 429  */
 430 static void gmc_v7_0_gart_flush_gpu_tlb(struct amdgpu_device *adev,
 431                                         uint32_t vmid)
 432 {
 433         /* flush hdp cache */
 434         WREG32(mmHDP_MEM_COHERENCY_FLUSH_CNTL, 0);
 435
 436         /* bits 0-15 are the VM contexts0-15 */
 437         WREG32(mmVM_INVALIDATE_REQUEST, 1 << vmid);
 438 }
 439
 440 /**
 441  * gmc_v7_0_gart_set_pte_pde - update the page tables using MMIO
 442  *
 443  * @adev: amdgpu_device pointer
 444  * @cpu_pt_addr: cpu address of the page table
 445  * @gpu_page_idx: entry in the page table to update
 446  * @addr: dst addr to write into pte/pde
 447  * @flags: access flags
 448  *
 449  * Update the page tables using the CPU.
 450  */
 451 static int gmc_v7_0_gart_set_pte_pde(struct amdgpu_device *adev,
 452                                      void *cpu_pt_addr,
 453                                      uint32_t gpu_page_idx,
 454                                      uint64_t addr,
 455                                      uint64_t flags)
 456 {
 457         void __iomem *ptr = (void *)cpu_pt_addr;
 458         uint64_t value;
 459
 460         value = addr & 0xFFFFFFFFFFFFF000ULL;
 461         value |= flags;
 462         writeq(value, ptr + (gpu_page_idx * 8));
 463
 464         return 0;
 465 }
 466
 467 static uint64_t gmc_v7_0_get_vm_pte_flags(struct amdgpu_device *adev,
 468                                           uint32_t flags)
 469 {
 470         uint64_t pte_flag = 0;
 471
 472         if (flags & AMDGPU_VM_PAGE_READABLE)
 473                 pte_flag |= AMDGPU_PTE_READABLE;
 474         if (flags & AMDGPU_VM_PAGE_WRITEABLE)
 475                 pte_flag |= AMDGPU_PTE_WRITEABLE;
 476         if (flags & AMDGPU_VM_PAGE_PRT)
 477                 pte_flag |= AMDGPU_PTE_PRT;
 478
 479         return pte_flag;
 480 }
 481
 482 static uint64_t gmc_v7_0_get_vm_pde(struct amdgpu_device *adev, uint64_t addr)
 483 {
 484         BUG_ON(addr & 0xFFFFFF0000000FFFULL);
 485         return addr;
 486 }
 487
 488 /**
 489  * gmc_v8_0_set_fault_enable_default - update VM fault handling
 490  *
 491  * @adev: amdgpu_device pointer
 492  * @value: true redirects VM faults to the default page
 493  */
 494 static void gmc_v7_0_set_fault_enable_default(struct amdgpu_device *adev,
 495                                               bool value)
 496 {
 497         u32 tmp;
 498
 499         tmp = RREG32(mmVM_CONTEXT1_CNTL);
 500         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 501                             RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 502         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 503                             DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 504         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 505                             PDE0_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 506         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 507                             VALID_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 508         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 509                             READ_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 510         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 511                             WRITE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 512         WREG32(mmVM_CONTEXT1_CNTL, tmp);
 513 }
 514
 515 /**
 516  * gmc_v7_0_set_prt - set PRT VM fault
 517  *
 518  * @adev: amdgpu_device pointer
 519  * @enable: enable/disable VM fault handling for PRT
 520  */
 521 static void gmc_v7_0_set_prt(struct amdgpu_device *adev, bool enable)
 522 {
 523         uint32_t tmp;
 524
 525         if (enable && !adev->mc.prt_warning) {
 526                 dev_warn(adev->dev, "Disabling VM faults because of PRT request!\n");
 527                 adev->mc.prt_warning = true;
 528         }
 529
 530         tmp = RREG32(mmVM_PRT_CNTL);
 531         tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
 532                             CB_DISABLE_READ_FAULT_ON_UNMAPPED_ACCESS, enable);
 533         tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
 534                             CB_DISABLE_WRITE_FAULT_ON_UNMAPPED_ACCESS, enable);
 535         tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
 536                             TC_DISABLE_READ_FAULT_ON_UNMAPPED_ACCESS, enable);
 537         tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
 538                             TC_DISABLE_WRITE_FAULT_ON_UNMAPPED_ACCESS, enable);
 539         tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
 540                             L2_CACHE_STORE_INVALID_ENTRIES, enable);
 541         tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
 542                             L1_TLB_STORE_INVALID_ENTRIES, enable);
 543         tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
 544                             MASK_PDE0_FAULT, enable);
 545         WREG32(mmVM_PRT_CNTL, tmp);
 546
 547         if (enable) {
 548                 uint32_t low = AMDGPU_VA_RESERVED_SIZE >> AMDGPU_GPU_PAGE_SHIFT;
 549                 uint32_t high = adev->vm_manager.max_pfn;
 550
 551                 WREG32(mmVM_PRT_APERTURE0_LOW_ADDR, low);
 552                 WREG32(mmVM_PRT_APERTURE1_LOW_ADDR, low);
 553                 WREG32(mmVM_PRT_APERTURE2_LOW_ADDR, low);
 554                 WREG32(mmVM_PRT_APERTURE3_LOW_ADDR, low);
 555                 WREG32(mmVM_PRT_APERTURE0_HIGH_ADDR, high);
 556                 WREG32(mmVM_PRT_APERTURE1_HIGH_ADDR, high);
 557                 WREG32(mmVM_PRT_APERTURE2_HIGH_ADDR, high);
 558                 WREG32(mmVM_PRT_APERTURE3_HIGH_ADDR, high);
 559         } else {
 560                 WREG32(mmVM_PRT_APERTURE0_LOW_ADDR, 0xfffffff);
 561                 WREG32(mmVM_PRT_APERTURE1_LOW_ADDR, 0xfffffff);
 562                 WREG32(mmVM_PRT_APERTURE2_LOW_ADDR, 0xfffffff);
 563                 WREG32(mmVM_PRT_APERTURE3_LOW_ADDR, 0xfffffff);
 564                 WREG32(mmVM_PRT_APERTURE0_HIGH_ADDR, 0x0);
 565                 WREG32(mmVM_PRT_APERTURE1_HIGH_ADDR, 0x0);
 566                 WREG32(mmVM_PRT_APERTURE2_HIGH_ADDR, 0x0);
 567                 WREG32(mmVM_PRT_APERTURE3_HIGH_ADDR, 0x0);
 568         }
 569 }
 570
 571 /**
 572  * gmc_v7_0_gart_enable - gart enable
 573  *
 574  * @adev: amdgpu_device pointer
 575  *
 576  * This sets up the TLBs, programs the page tables for VMID0,
 577  * sets up the hw for VMIDs 1-15 which are allocated on
 578  * demand, and sets up the global locations for the LDS, GDS,
 579  * and GPUVM for FSA64 clients (CIK).
 580  * Returns 0 for success, errors for failure.
 581  */
 582 static int gmc_v7_0_gart_enable(struct amdgpu_device *adev)
 583 {
 584         int r, i;
 585         u32 tmp, field;
 586
 587         if (adev->gart.robj == NULL) {
 588                 dev_err(adev->dev, "No VRAM object for PCIE GART.\n");
 589                 return -EINVAL;
 590         }
 591         r = amdgpu_gart_table_vram_pin(adev);
 592         if (r)
 593                 return r;
 594         /* Setup TLB control */
 595         tmp = RREG32(mmMC_VM_MX_L1_TLB_CNTL);
 596         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 1);
 597         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_FRAGMENT_PROCESSING, 1);
 598         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, SYSTEM_ACCESS_MODE, 3);
 599         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_ADVANCED_DRIVER_MODEL, 1);
 600         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, SYSTEM_APERTURE_UNMAPPED_ACCESS, 0);
 601         WREG32(mmMC_VM_MX_L1_TLB_CNTL, tmp);
 602         /* Setup L2 cache */
 603         tmp = RREG32(mmVM_L2_CNTL);
 604         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_CACHE, 1);
 605         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_FRAGMENT_PROCESSING, 1);
 606         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_PTE_CACHE_LRU_UPDATE_BY_WRITE, 1);
 607         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_PDE0_CACHE_LRU_UPDATE_BY_WRITE, 1);
 608         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, EFFECTIVE_L2_QUEUE_SIZE, 7);
 609         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, CONTEXT1_IDENTITY_ACCESS_MODE, 1);
 610         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_DEFAULT_PAGE_OUT_TO_SYSTEM_MEMORY, 1);
 611         WREG32(mmVM_L2_CNTL, tmp);
 612         tmp = REG_SET_FIELD(0, VM_L2_CNTL2, INVALIDATE_ALL_L1_TLBS, 1);
 613         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL2, INVALIDATE_L2_CACHE, 1);
 614         WREG32(mmVM_L2_CNTL2, tmp);
 615
 616         field = adev->vm_manager.fragment_size;
 617         tmp = RREG32(mmVM_L2_CNTL3);
 618         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, L2_CACHE_BIGK_ASSOCIATIVITY, 1);
 619         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, BANK_SELECT, field);
 620         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, L2_CACHE_BIGK_FRAGMENT_SIZE, field);
 621         WREG32(mmVM_L2_CNTL3, tmp);
 622         /* setup context0 */
 623         WREG32(mmVM_CONTEXT0_PAGE_TABLE_START_ADDR, adev->mc.gart_start >> 12);
 624         WREG32(mmVM_CONTEXT0_PAGE_TABLE_END_ADDR, adev->mc.gart_end >> 12);
 625         WREG32(mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR, adev->gart.table_addr >> 12);
 626         WREG32(mmVM_CONTEXT0_PROTECTION_FAULT_DEFAULT_ADDR,
 627                         (u32)(adev->dummy_page.addr >> 12));
 628         WREG32(mmVM_CONTEXT0_CNTL2, 0);
 629         tmp = RREG32(mmVM_CONTEXT0_CNTL);
 630         tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, ENABLE_CONTEXT, 1);
 631         tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, PAGE_TABLE_DEPTH, 0);
 632         tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 633         WREG32(mmVM_CONTEXT0_CNTL, tmp);
 634
 635         WREG32(0x575, 0);
 636         WREG32(0x576, 0);
 637         WREG32(0x577, 0);
 638
 639         /* empty context1-15 */
 640         /* FIXME start with 4G, once using 2 level pt switch to full
 641          * vm size space
 642          */
 643         /* set vm size, must be a multiple of 4 */
 644         WREG32(mmVM_CONTEXT1_PAGE_TABLE_START_ADDR, 0);
 645         WREG32(mmVM_CONTEXT1_PAGE_TABLE_END_ADDR, adev->vm_manager.max_pfn - 1);
 646         for (i = 1; i < 16; i++) {
 647                 if (i < 8)
 648                         WREG32(mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR + i,
 649                                adev->gart.table_addr >> 12);
 650                 else
 651                         WREG32(mmVM_CONTEXT8_PAGE_TABLE_BASE_ADDR + i - 8,
 652                                adev->gart.table_addr >> 12);
 653         }
 654
 655         /* enable context1-15 */
 656         WREG32(mmVM_CONTEXT1_PROTECTION_FAULT_DEFAULT_ADDR,
 657                (u32)(adev->dummy_page.addr >> 12));
 658         WREG32(mmVM_CONTEXT1_CNTL2, 4);
 659         tmp = RREG32(mmVM_CONTEXT1_CNTL);
 660         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, ENABLE_CONTEXT, 1);
 661         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, PAGE_TABLE_DEPTH, 1);
 662         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, PAGE_TABLE_BLOCK_SIZE,
 663                             adev->vm_manager.block_size - 9);
 664         WREG32(mmVM_CONTEXT1_CNTL, tmp);
 665         if (amdgpu_vm_fault_stop == AMDGPU_VM_FAULT_STOP_ALWAYS)
 666                 gmc_v7_0_set_fault_enable_default(adev, false);
 667         else
 668                 gmc_v7_0_set_fault_enable_default(adev, true);
 669
 670         if (adev->asic_type == CHIP_KAVERI) {
 671                 tmp = RREG32(mmCHUB_CONTROL);
 672                 tmp &= ~BYPASS_VM;
 673                 WREG32(mmCHUB_CONTROL, tmp);
 674         }
 675
 676         gmc_v7_0_gart_flush_gpu_tlb(adev, 0);
 677         DRM_INFO("PCIE GART of %uM enabled (table at 0x%016llX).\n",
 678                  (unsigned)(adev->mc.gart_size >> 20),
 679                  (unsigned long long)adev->gart.table_addr);
 680         adev->gart.ready = true;
 681         return 0;
 682 }
 683
 684 static int gmc_v7_0_gart_init(struct amdgpu_device *adev)
 685 {
 686         int r;
 687
 688         if (adev->gart.robj) {
 689                 WARN(1, "R600 PCIE GART already initialized\n");
 690                 return 0;
 691         }
 692         /* Initialize common gart structure */
 693         r = amdgpu_gart_init(adev);
 694         if (r)
 695                 return r;
 696         adev->gart.table_size = adev->gart.num_gpu_pages * 8;
 697         adev->gart.gart_pte_flags = 0;
 698         return amdgpu_gart_table_vram_alloc(adev);
 699 }
 700
 701 /**
 702  * gmc_v7_0_gart_disable - gart disable
 703  *
 704  * @adev: amdgpu_device pointer
 705  *
 706  * This disables all VM page table (CIK).
 707  */
 708 static void gmc_v7_0_gart_disable(struct amdgpu_device *adev)
 709 {
 710         u32 tmp;
 711
 712         /* Disable all tables */
 713         WREG32(mmVM_CONTEXT0_CNTL, 0);
 714         WREG32(mmVM_CONTEXT1_CNTL, 0);
 715         /* Setup TLB control */
 716         tmp = RREG32(mmMC_VM_MX_L1_TLB_CNTL);
 717         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 0);
 718         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_FRAGMENT_PROCESSING, 0);
 719         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_ADVANCED_DRIVER_MODEL, 0);
 720         WREG32(mmMC_VM_MX_L1_TLB_CNTL, tmp);
 721         /* Setup L2 cache */
 722         tmp = RREG32(mmVM_L2_CNTL);
 723         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_CACHE, 0);
 724         WREG32(mmVM_L2_CNTL, tmp);
 725         WREG32(mmVM_L2_CNTL2, 0);
 726         amdgpu_gart_table_vram_unpin(adev);
 727 }
 728
 729 /**
 730  * gmc_v7_0_gart_fini - vm fini callback
 731  *
 732  * @adev: amdgpu_device pointer
 733  *
 734  * Tears down the driver GART/VM setup (CIK).
 735  */
 736 static void gmc_v7_0_gart_fini(struct amdgpu_device *adev)
 737 {
 738         amdgpu_gart_table_vram_free(adev);
 739         amdgpu_gart_fini(adev);
 740 }
 741
 742 /**
 743  * gmc_v7_0_vm_decode_fault - print human readable fault info
 744  *
 745  * @adev: amdgpu_device pointer
 746  * @status: VM_CONTEXT1_PROTECTION_FAULT_STATUS register value
 747  * @addr: VM_CONTEXT1_PROTECTION_FAULT_ADDR register value
 748  *
 749  * Print human readable fault information (CIK).
 750  */
 751 static void gmc_v7_0_vm_decode_fault(struct amdgpu_device *adev,
 752                                      u32 status, u32 addr, u32 mc_client)
 753 {
 754         u32 mc_id;
 755         u32 vmid = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS, VMID);
 756         u32 protections = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS,
 757                                         PROTECTIONS);
 758         char block[5] = { mc_client >> 24, (mc_client >> 16) & 0xff,
 759                 (mc_client >> 8) & 0xff, mc_client & 0xff, 0 };
 760
 761         mc_id = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS,
 762                               MEMORY_CLIENT_ID);
 763
 764         dev_err(adev->dev, "VM fault (0x%02x, vmid %d) at page %u, %s from '%s' (0x%08x) (%d)\n",
 765                protections, vmid, addr,
 766                REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS,
 767                              MEMORY_CLIENT_RW) ?
 768                "write" : "read", block, mc_client, mc_id);
 769 }
 770
 771
 772 static const u32 mc_cg_registers[] = {
 773         mmMC_HUB_MISC_HUB_CG,
 774         mmMC_HUB_MISC_SIP_CG,
 775         mmMC_HUB_MISC_VM_CG,
 776         mmMC_XPB_CLK_GAT,
 777         mmATC_MISC_CG,
 778         mmMC_CITF_MISC_WR_CG,
 779         mmMC_CITF_MISC_RD_CG,
 780         mmMC_CITF_MISC_VM_CG,
 781         mmVM_L2_CG,
 782 };
 783
 784 static const u32 mc_cg_ls_en[] = {
 785         MC_HUB_MISC_HUB_CG__MEM_LS_ENABLE_MASK,
 786         MC_HUB_MISC_SIP_CG__MEM_LS_ENABLE_MASK,
 787         MC_HUB_MISC_VM_CG__MEM_LS_ENABLE_MASK,
 788         MC_XPB_CLK_GAT__MEM_LS_ENABLE_MASK,
 789         ATC_MISC_CG__MEM_LS_ENABLE_MASK,
 790         MC_CITF_MISC_WR_CG__MEM_LS_ENABLE_MASK,
 791         MC_CITF_MISC_RD_CG__MEM_LS_ENABLE_MASK,
 792         MC_CITF_MISC_VM_CG__MEM_LS_ENABLE_MASK,
 793         VM_L2_CG__MEM_LS_ENABLE_MASK,
 794 };
 795
 796 static const u32 mc_cg_en[] = {
 797         MC_HUB_MISC_HUB_CG__ENABLE_MASK,
 798         MC_HUB_MISC_SIP_CG__ENABLE_MASK,
 799         MC_HUB_MISC_VM_CG__ENABLE_MASK,
 800         MC_XPB_CLK_GAT__ENABLE_MASK,
 801         ATC_MISC_CG__ENABLE_MASK,
 802         MC_CITF_MISC_WR_CG__ENABLE_MASK,
 803         MC_CITF_MISC_RD_CG__ENABLE_MASK,
 804         MC_CITF_MISC_VM_CG__ENABLE_MASK,
 805         VM_L2_CG__ENABLE_MASK,
 806 };
 807
 808 static void gmc_v7_0_enable_mc_ls(struct amdgpu_device *adev,
 809                                   bool enable)
 810 {
 811         int i;
 812         u32 orig, data;
 813
 814         for (i = 0; i < ARRAY_SIZE(mc_cg_registers); i++) {
 815                 orig = data = RREG32(mc_cg_registers[i]);
 816                 if (enable && (adev->cg_flags & AMD_CG_SUPPORT_MC_LS))
 817                         data |= mc_cg_ls_en[i];
 818                 else
 819                         data &= ~mc_cg_ls_en[i];
 820                 if (data != orig)
 821                         WREG32(mc_cg_registers[i], data);
 822         }
 823 }
 824
 825 static void gmc_v7_0_enable_mc_mgcg(struct amdgpu_device *adev,
 826                                     bool enable)
 827 {
 828         int i;
 829         u32 orig, data;
 830
 831         for (i = 0; i < ARRAY_SIZE(mc_cg_registers); i++) {
 832                 orig = data = RREG32(mc_cg_registers[i]);
 833                 if (enable && (adev->cg_flags & AMD_CG_SUPPORT_MC_MGCG))
 834                         data |= mc_cg_en[i];
 835                 else
 836                         data &= ~mc_cg_en[i];
 837                 if (data != orig)
 838                         WREG32(mc_cg_registers[i], data);
 839         }
 840 }
 841
 842 static void gmc_v7_0_enable_bif_mgls(struct amdgpu_device *adev,
 843                                      bool enable)
 844 {
 845         u32 orig, data;
 846
 847         orig = data = RREG32_PCIE(ixPCIE_CNTL2);
 848
 849         if (enable && (adev->cg_flags & AMD_CG_SUPPORT_BIF_LS)) {
 850                 data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_LS_EN, 1);
 851                 data = REG_SET_FIELD(data, PCIE_CNTL2, MST_MEM_LS_EN, 1);
 852                 data = REG_SET_FIELD(data, PCIE_CNTL2, REPLAY_MEM_LS_EN, 1);
 853                 data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_AGGRESSIVE_LS_EN, 1);
 854         } else {
 855                 data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_LS_EN, 0);
 856                 data = REG_SET_FIELD(data, PCIE_CNTL2, MST_MEM_LS_EN, 0);
 857                 data = REG_SET_FIELD(data, PCIE_CNTL2, REPLAY_MEM_LS_EN, 0);
 858                 data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_AGGRESSIVE_LS_EN, 0);
 859         }
 860
 861         if (orig != data)
 862                 WREG32_PCIE(ixPCIE_CNTL2, data);
 863 }
 864
 865 static void gmc_v7_0_enable_hdp_mgcg(struct amdgpu_device *adev,
 866                                      bool enable)
 867 {
 868         u32 orig, data;
 869
 870         orig = data = RREG32(mmHDP_HOST_PATH_CNTL);
 871
 872         if (enable && (adev->cg_flags & AMD_CG_SUPPORT_HDP_MGCG))
 873                 data = REG_SET_FIELD(data, HDP_HOST_PATH_CNTL, CLOCK_GATING_DIS, 0);
 874         else
 875                 data = REG_SET_FIELD(data, HDP_HOST_PATH_CNTL, CLOCK_GATING_DIS, 1);
 876
 877         if (orig != data)
 878                 WREG32(mmHDP_HOST_PATH_CNTL, data);
 879 }
 880
 881 static void gmc_v7_0_enable_hdp_ls(struct amdgpu_device *adev,
 882                                    bool enable)
 883 {
 884         u32 orig, data;
 885
 886         orig = data = RREG32(mmHDP_MEM_POWER_LS);
 887
 888         if (enable && (adev->cg_flags & AMD_CG_SUPPORT_HDP_LS))
 889                 data = REG_SET_FIELD(data, HDP_MEM_POWER_LS, LS_ENABLE, 1);
 890         else
 891                 data = REG_SET_FIELD(data, HDP_MEM_POWER_LS, LS_ENABLE, 0);
 892
 893         if (orig != data)
 894                 WREG32(mmHDP_MEM_POWER_LS, data);
 895 }
 896
 897 static int gmc_v7_0_convert_vram_type(int mc_seq_vram_type)
 898 {
 899         switch (mc_seq_vram_type) {
 900         case MC_SEQ_MISC0__MT__GDDR1:
 901                 return AMDGPU_VRAM_TYPE_GDDR1;
 902         case MC_SEQ_MISC0__MT__DDR2:
 903                 return AMDGPU_VRAM_TYPE_DDR2;
 904         case MC_SEQ_MISC0__MT__GDDR3:
 905                 return AMDGPU_VRAM_TYPE_GDDR3;
 906         case MC_SEQ_MISC0__MT__GDDR4:
 907                 return AMDGPU_VRAM_TYPE_GDDR4;
 908         case MC_SEQ_MISC0__MT__GDDR5:
 909                 return AMDGPU_VRAM_TYPE_GDDR5;
 910         case MC_SEQ_MISC0__MT__HBM:
 911                 return AMDGPU_VRAM_TYPE_HBM;
 912         case MC_SEQ_MISC0__MT__DDR3:
 913                 return AMDGPU_VRAM_TYPE_DDR3;
 914         default:
 915                 return AMDGPU_VRAM_TYPE_UNKNOWN;
 916         }
 917 }
 918
 919 static int gmc_v7_0_early_init(void *handle)
 920 {
 921         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 922
 923         gmc_v7_0_set_gart_funcs(adev);
 924         gmc_v7_0_set_irq_funcs(adev);
 925
 926         adev->mc.shared_aperture_start = 0x2000000000000000ULL;
 927         adev->mc.shared_aperture_end =
 928                 adev->mc.shared_aperture_start + (4ULL << 30) - 1;
 929         adev->mc.private_aperture_start =
 930                 adev->mc.shared_aperture_end + 1;
 931         adev->mc.private_aperture_end =
 932                 adev->mc.private_aperture_start + (4ULL << 30) - 1;
 933
 934         return 0;
 935 }
 936
 937 static int gmc_v7_0_late_init(void *handle)
 938 {
 939         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 940
 941         if (amdgpu_vm_fault_stop != AMDGPU_VM_FAULT_STOP_ALWAYS)
 942                 return amdgpu_irq_get(adev, &adev->mc.vm_fault, 0);
 943         else
 944                 return 0;
 945 }
 946
 947 static int gmc_v7_0_sw_init(void *handle)
 948 {
 949         int r;
 950         int dma_bits;
 951         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 952
 953         if (adev->flags & AMD_IS_APU) {
 954                 adev->mc.vram_type = AMDGPU_VRAM_TYPE_UNKNOWN;
 955         } else {
 956                 u32 tmp = RREG32(mmMC_SEQ_MISC0);
 957                 tmp &= MC_SEQ_MISC0__MT__MASK;
 958                 adev->mc.vram_type = gmc_v7_0_convert_vram_type(tmp);
 959         }
 960
 961         r = amdgpu_irq_add_id(adev, AMDGPU_IH_CLIENTID_LEGACY, 146, &adev->mc.vm_fault);
 962         if (r)
 963                 return r;
 964
 965         r = amdgpu_irq_add_id(adev, AMDGPU_IH_CLIENTID_LEGACY, 147, &adev->mc.vm_fault);
 966         if (r)
 967                 return r;
 968
 969         /* Adjust VM size here.
 970          * Currently set to 4GB ((1 << 20) 4k pages).
 971          * Max GPUVM size for cayman and SI is 40 bits.
 972          */
 973         amdgpu_vm_adjust_size(adev, 64, 9);
 974         adev->vm_manager.max_pfn = adev->vm_manager.vm_size << 18;
 975
 976         /* Set the internal MC address mask
 977          * This is the max address of the GPU's
 978          * internal address space.
 979          */
 980         adev->mc.mc_mask = 0xffffffffffULL; /* 40 bit MC */
 981
 982         adev->mc.stolen_size = 256 * 1024;
 983
 984         /* set DMA mask + need_dma32 flags.
 985          * PCIE - can handle 40-bits.
 986          * IGP - can handle 40-bits
 987          * PCI - dma32 for legacy pci gart, 40 bits on newer asics
 988          */
 989         adev->need_dma32 = false;
 990         dma_bits = adev->need_dma32 ? 32 : 40;
 991         r = pci_set_dma_mask(adev->pdev, DMA_BIT_MASK(dma_bits));
 992         if (r) {
 993                 adev->need_dma32 = true;
 994                 dma_bits = 32;
 995                 pr_warn("amdgpu: No suitable DMA available\n");
 996         }
 997         r = pci_set_consistent_dma_mask(adev->pdev, DMA_BIT_MASK(dma_bits));
 998         if (r) {
 999                 pci_set_consistent_dma_mask(adev->pdev, DMA_BIT_MASK(32));
1000                 pr_warn("amdgpu: No coherent DMA available\n");
1001         }
1002
1003         r = gmc_v7_0_init_microcode(adev);
1004         if (r) {
1005                 DRM_ERROR("Failed to load mc firmware!\n");
1006                 return r;
1007         }
1008
1009         r = gmc_v7_0_mc_init(adev);
1010         if (r)
1011                 return r;
1012
1013         /* Memory manager */
1014         r = amdgpu_bo_init(adev);
1015         if (r)
1016                 return r;
1017
1018         r = gmc_v7_0_gart_init(adev);
1019         if (r)
1020                 return r;
1021
1022         /*
1023          * number of VMs
1024          * VMID 0 is reserved for System
1025          * amdgpu graphics/compute will use VMIDs 1-7
1026          * amdkfd will use VMIDs 8-15
1027          */
1028         adev->vm_manager.id_mgr[0].num_ids = AMDGPU_NUM_OF_VMIDS;
1029         adev->vm_manager.num_level = 1;
1030         amdgpu_vm_manager_init(adev);
1031
1032         /* base offset of vram pages */
1033         if (adev->flags & AMD_IS_APU) {
1034                 u64 tmp = RREG32(mmMC_VM_FB_OFFSET);
1035
1036                 tmp <<= 22;
1037                 adev->vm_manager.vram_base_offset = tmp;
1038         } else {
1039                 adev->vm_manager.vram_base_offset = 0;
1040         }
1041
1042         return 0;
1043 }
1044
1045 static int gmc_v7_0_sw_fini(void *handle)
1046 {
1047         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1048
1049         amdgpu_vm_manager_fini(adev);
1050         gmc_v7_0_gart_fini(adev);
1051         amdgpu_gem_force_release(adev);
1052         amdgpu_bo_fini(adev);
1053         release_firmware(adev->mc.fw);
1054         adev->mc.fw = NULL;
1055
1056         return 0;
1057 }
1058
1059 static int gmc_v7_0_hw_init(void *handle)
1060 {
1061         int r;
1062         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1063
1064         gmc_v7_0_init_golden_registers(adev);
1065
1066         gmc_v7_0_mc_program(adev);
1067
1068         if (!(adev->flags & AMD_IS_APU)) {
1069                 r = gmc_v7_0_mc_load_microcode(adev);
1070                 if (r) {
1071                         DRM_ERROR("Failed to load MC firmware!\n");
1072                         return r;
1073                 }
1074         }
1075
1076         r = gmc_v7_0_gart_enable(adev);
1077         if (r)
1078                 return r;
1079
1080         return r;
1081 }
1082
1083 static int gmc_v7_0_hw_fini(void *handle)
1084 {
1085         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1086
1087         amdgpu_irq_put(adev, &adev->mc.vm_fault, 0);
1088         gmc_v7_0_gart_disable(adev);
1089
1090         return 0;
1091 }
1092
1093 static int gmc_v7_0_suspend(void *handle)
1094 {
1095         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1096
1097         gmc_v7_0_hw_fini(adev);
1098
1099         return 0;
1100 }
1101
1102 static int gmc_v7_0_resume(void *handle)
1103 {
1104         int r;
1105         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1106
1107         r = gmc_v7_0_hw_init(adev);
1108         if (r)
1109                 return r;
1110
1111         amdgpu_vm_reset_all_ids(adev);
1112
1113         return 0;
1114 }
1115
1116 static bool gmc_v7_0_is_idle(void *handle)
1117 {
1118         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1119         u32 tmp = RREG32(mmSRBM_STATUS);
1120
1121         if (tmp & (SRBM_STATUS__MCB_BUSY_MASK | SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK |
1122                    SRBM_STATUS__MCC_BUSY_MASK | SRBM_STATUS__MCD_BUSY_MASK | SRBM_STATUS__VMC_BUSY_MASK))
1123                 return false;
1124
1125         return true;
1126 }
1127
1128 static int gmc_v7_0_wait_for_idle(void *handle)
1129 {
1130         unsigned i;
1131         u32 tmp;
1132         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1133
1134         for (i = 0; i < adev->usec_timeout; i++) {
1135                 /* read MC_STATUS */
1136                 tmp = RREG32(mmSRBM_STATUS) & (SRBM_STATUS__MCB_BUSY_MASK |
1137                                                SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK |
1138                                                SRBM_STATUS__MCC_BUSY_MASK |
1139                                                SRBM_STATUS__MCD_BUSY_MASK |
1140                                                SRBM_STATUS__VMC_BUSY_MASK);
1141                 if (!tmp)
1142                         return 0;
1143                 udelay(1);
1144         }
1145         return -ETIMEDOUT;
1146
1147 }
1148
1149 static int gmc_v7_0_soft_reset(void *handle)
1150 {
1151         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1152         u32 srbm_soft_reset = 0;
1153         u32 tmp = RREG32(mmSRBM_STATUS);
1154
1155         if (tmp & SRBM_STATUS__VMC_BUSY_MASK)
1156                 srbm_soft_reset = REG_SET_FIELD(srbm_soft_reset,
1157                                                 SRBM_SOFT_RESET, SOFT_RESET_VMC, 1);
1158
1159         if (tmp & (SRBM_STATUS__MCB_BUSY_MASK | SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK |
1160                    SRBM_STATUS__MCC_BUSY_MASK | SRBM_STATUS__MCD_BUSY_MASK)) {
1161                 if (!(adev->flags & AMD_IS_APU))
1162                         srbm_soft_reset = REG_SET_FIELD(srbm_soft_reset,
1163                                                         SRBM_SOFT_RESET, SOFT_RESET_MC, 1);
1164         }
1165
1166         if (srbm_soft_reset) {
1167                 gmc_v7_0_mc_stop(adev);
1168                 if (gmc_v7_0_wait_for_idle((void *)adev)) {
1169                         dev_warn(adev->dev, "Wait for GMC idle timed out !\n");
1170                 }
1171
1172
1173                 tmp = RREG32(mmSRBM_SOFT_RESET);
1174                 tmp |= srbm_soft_reset;
1175                 dev_info(adev->dev, "SRBM_SOFT_RESET=0x%08X\n", tmp);
1176                 WREG32(mmSRBM_SOFT_RESET, tmp);
1177                 tmp = RREG32(mmSRBM_SOFT_RESET);
1178
1179                 udelay(50);
1180
1181                 tmp &= ~srbm_soft_reset;
1182                 WREG32(mmSRBM_SOFT_RESET, tmp);
1183                 tmp = RREG32(mmSRBM_SOFT_RESET);
1184
1185                 /* Wait a little for things to settle down */
1186                 udelay(50);
1187
1188                 gmc_v7_0_mc_resume(adev);
1189                 udelay(50);
1190         }
1191
1192         return 0;
1193 }
1194
1195 static int gmc_v7_0_vm_fault_interrupt_state(struct amdgpu_device *adev,
1196                                              struct amdgpu_irq_src *src,
1197                                              unsigned type,
1198                                              enum amdgpu_interrupt_state state)
1199 {
1200         u32 tmp;
1201         u32 bits = (VM_CONTEXT1_CNTL__RANGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1202                     VM_CONTEXT1_CNTL__DUMMY_PAGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1203                     VM_CONTEXT1_CNTL__PDE0_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1204                     VM_CONTEXT1_CNTL__VALID_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1205                     VM_CONTEXT1_CNTL__READ_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1206                     VM_CONTEXT1_CNTL__WRITE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK);
1207
1208         switch (state) {
1209         case AMDGPU_IRQ_STATE_DISABLE:
1210                 /* system context */
1211                 tmp = RREG32(mmVM_CONTEXT0_CNTL);
1212                 tmp &= ~bits;
1213                 WREG32(mmVM_CONTEXT0_CNTL, tmp);
1214                 /* VMs */
1215                 tmp = RREG32(mmVM_CONTEXT1_CNTL);
1216                 tmp &= ~bits;
1217                 WREG32(mmVM_CONTEXT1_CNTL, tmp);
1218                 break;
1219         case AMDGPU_IRQ_STATE_ENABLE:
1220                 /* system context */
1221                 tmp = RREG32(mmVM_CONTEXT0_CNTL);
1222                 tmp |= bits;
1223                 WREG32(mmVM_CONTEXT0_CNTL, tmp);
1224                 /* VMs */
1225                 tmp = RREG32(mmVM_CONTEXT1_CNTL);
1226                 tmp |= bits;
1227                 WREG32(mmVM_CONTEXT1_CNTL, tmp);
1228                 break;
1229         default:
1230                 break;
1231         }
1232
1233         return 0;
1234 }
1235
1236 static int gmc_v7_0_process_interrupt(struct amdgpu_device *adev,
1237                                       struct amdgpu_irq_src *source,
1238                                       struct amdgpu_iv_entry *entry)
1239 {
1240         u32 addr, status, mc_client;
1241
1242         addr = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_ADDR);
1243         status = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_STATUS);
1244         mc_client = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_MCCLIENT);
1245         /* reset addr and status */
1246         WREG32_P(mmVM_CONTEXT1_CNTL2, 1, ~1);
1247
1248         if (!addr && !status)
1249                 return 0;
1250
1251         if (amdgpu_vm_fault_stop == AMDGPU_VM_FAULT_STOP_FIRST)
1252                 gmc_v7_0_set_fault_enable_default(adev, false);
1253
1254         if (printk_ratelimit()) {
1255                 dev_err(adev->dev, "GPU fault detected: %d 0x%08x\n",
1256                         entry->src_id, entry->src_data[0]);
1257                 dev_err(adev->dev, "  VM_CONTEXT1_PROTECTION_FAULT_ADDR   0x%08X\n",
1258                         addr);
1259                 dev_err(adev->dev, "  VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x%08X\n",
1260                         status);
1261                 gmc_v7_0_vm_decode_fault(adev, status, addr, mc_client);
1262         }
1263
1264         return 0;
1265 }
1266
1267 static int gmc_v7_0_set_clockgating_state(void *handle,
1268                                           enum amd_clockgating_state state)
1269 {
1270         bool gate = false;
1271         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1272
1273         if (state == AMD_CG_STATE_GATE)
1274                 gate = true;
1275
1276         if (!(adev->flags & AMD_IS_APU)) {
1277                 gmc_v7_0_enable_mc_mgcg(adev, gate);
1278                 gmc_v7_0_enable_mc_ls(adev, gate);
1279         }
1280         gmc_v7_0_enable_bif_mgls(adev, gate);
1281         gmc_v7_0_enable_hdp_mgcg(adev, gate);
1282         gmc_v7_0_enable_hdp_ls(adev, gate);
1283
1284         return 0;
1285 }
1286
1287 static int gmc_v7_0_set_powergating_state(void *handle,
1288                                           enum amd_powergating_state state)
1289 {
1290         return 0;
1291 }
1292
1293 static const struct amd_ip_funcs gmc_v7_0_ip_funcs = {
1294         .name = "gmc_v7_0",
1295         .early_init = gmc_v7_0_early_init,
1296         .late_init = gmc_v7_0_late_init,
1297         .sw_init = gmc_v7_0_sw_init,
1298         .sw_fini = gmc_v7_0_sw_fini,
1299         .hw_init = gmc_v7_0_hw_init,
1300         .hw_fini = gmc_v7_0_hw_fini,
1301         .suspend = gmc_v7_0_suspend,
1302         .resume = gmc_v7_0_resume,
1303         .is_idle = gmc_v7_0_is_idle,
1304         .wait_for_idle = gmc_v7_0_wait_for_idle,
1305         .soft_reset = gmc_v7_0_soft_reset,
1306         .set_clockgating_state = gmc_v7_0_set_clockgating_state,
1307         .set_powergating_state = gmc_v7_0_set_powergating_state,
1308 };
1309
1310 static const struct amdgpu_gart_funcs gmc_v7_0_gart_funcs = {
1311         .flush_gpu_tlb = gmc_v7_0_gart_flush_gpu_tlb,
1312         .set_pte_pde = gmc_v7_0_gart_set_pte_pde,
1313         .set_prt = gmc_v7_0_set_prt,
1314         .get_vm_pte_flags = gmc_v7_0_get_vm_pte_flags,
1315         .get_vm_pde = gmc_v7_0_get_vm_pde
1316 };
1317
1318 static const struct amdgpu_irq_src_funcs gmc_v7_0_irq_funcs = {
1319         .set = gmc_v7_0_vm_fault_interrupt_state,
1320         .process = gmc_v7_0_process_interrupt,
1321 };
1322
1323 static void gmc_v7_0_set_gart_funcs(struct amdgpu_device *adev)
1324 {
1325         if (adev->gart.gart_funcs == NULL)
1326                 adev->gart.gart_funcs = &gmc_v7_0_gart_funcs;
1327 }
1328
1329 static void gmc_v7_0_set_irq_funcs(struct amdgpu_device *adev)
1330 {
1331         adev->mc.vm_fault.num_types = 1;
1332         adev->mc.vm_fault.funcs = &gmc_v7_0_irq_funcs;
1333 }
1334
1335 const struct amdgpu_ip_block_version gmc_v7_0_ip_block =
1336 {
1337         .type = AMD_IP_BLOCK_TYPE_GMC,
1338         .major = 7,
1339         .minor = 0,
1340         .rev = 0,
1341         .funcs = &gmc_v7_0_ip_funcs,
1342 };
1343
1344 const struct amdgpu_ip_block_version gmc_v7_4_ip_block =
1345 {
1346         .type = AMD_IP_BLOCK_TYPE_GMC,
1347         .major = 7,
1348         .minor = 4,
1349         .rev = 0,
1350         .funcs = &gmc_v7_0_ip_funcs,
1351 };