drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c

   1 /*
   2  * Copyright 2016 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/drm_cache.h>
  25 #include "amdgpu.h"
  26 #include "gmc_v9_0.h"
  27 #include "amdgpu_atomfirmware.h"
  28 #include "amdgpu_gem.h"
  29
  30 #include "hdp/hdp_4_0_offset.h"
  31 #include "hdp/hdp_4_0_sh_mask.h"
  32 #include "gc/gc_9_0_sh_mask.h"
  33 #include "dce/dce_12_0_offset.h"
  34 #include "dce/dce_12_0_sh_mask.h"
  35 #include "vega10_enum.h"
  36 #include "mmhub/mmhub_1_0_offset.h"
  37 #include "athub/athub_1_0_offset.h"
  38 #include "oss/osssys_4_0_offset.h"
  39
  40 #include "soc15.h"
  41 #include "soc15_common.h"
  42 #include "umc/umc_6_0_sh_mask.h"
  43
  44 #include "gfxhub_v1_0.h"
  45 #include "mmhub_v1_0.h"
  46 #include "gfxhub_v1_1.h"
  47
  48 #include "ivsrcid/vmc/irqsrcs_vmc_1_0.h"
  49
  50 /* add these here since we already include dce12 headers and these are for DCN */
  51 #define mmHUBP0_DCSURF_PRI_VIEWPORT_DIMENSION                                                          0x055d
  52 #define mmHUBP0_DCSURF_PRI_VIEWPORT_DIMENSION_BASE_IDX                                                 2
  53 #define HUBP0_DCSURF_PRI_VIEWPORT_DIMENSION__PRI_VIEWPORT_WIDTH__SHIFT                                        0x0
  54 #define HUBP0_DCSURF_PRI_VIEWPORT_DIMENSION__PRI_VIEWPORT_HEIGHT__SHIFT                                       0x10
  55 #define HUBP0_DCSURF_PRI_VIEWPORT_DIMENSION__PRI_VIEWPORT_WIDTH_MASK                                          0x00003FFFL
  56 #define HUBP0_DCSURF_PRI_VIEWPORT_DIMENSION__PRI_VIEWPORT_HEIGHT_MASK                                         0x3FFF0000L
  57
  58 /* XXX Move this macro to VEGA10 header file, which is like vid.h for VI.*/
  59 #define AMDGPU_NUM_OF_VMIDS                     8
  60
  61 static const u32 golden_settings_vega10_hdp[] =
  62 {
  63         0xf64, 0x0fffffff, 0x00000000,
  64         0xf65, 0x0fffffff, 0x00000000,
  65         0xf66, 0x0fffffff, 0x00000000,
  66         0xf67, 0x0fffffff, 0x00000000,
  67         0xf68, 0x0fffffff, 0x00000000,
  68         0xf6a, 0x0fffffff, 0x00000000,
  69         0xf6b, 0x0fffffff, 0x00000000,
  70         0xf6c, 0x0fffffff, 0x00000000,
  71         0xf6d, 0x0fffffff, 0x00000000,
  72         0xf6e, 0x0fffffff, 0x00000000,
  73 };
  74
  75 static const struct soc15_reg_golden golden_settings_mmhub_1_0_0[] =
  76 {
  77         SOC15_REG_GOLDEN_VALUE(MMHUB, 0, mmDAGB1_WRCLI2, 0x00000007, 0xfe5fe0fa),
  78         SOC15_REG_GOLDEN_VALUE(MMHUB, 0, mmMMEA1_DRAM_WR_CLI2GRP_MAP0, 0x00000030, 0x55555565)
  79 };
  80
  81 static const struct soc15_reg_golden golden_settings_athub_1_0_0[] =
  82 {
  83         SOC15_REG_GOLDEN_VALUE(ATHUB, 0, mmRPB_ARB_CNTL, 0x0000ff00, 0x00000800),
  84         SOC15_REG_GOLDEN_VALUE(ATHUB, 0, mmRPB_ARB_CNTL2, 0x00ff00ff, 0x00080008)
  85 };
  86
  87 /* Ecc related register addresses, (BASE + reg offset) */
  88 /* Universal Memory Controller caps (may be fused). */
  89 /* UMCCH:UmcLocalCap */
  90 #define UMCLOCALCAPS_ADDR0      (0x00014306 + 0x00000000)
  91 #define UMCLOCALCAPS_ADDR1      (0x00014306 + 0x00000800)
  92 #define UMCLOCALCAPS_ADDR2      (0x00014306 + 0x00001000)
  93 #define UMCLOCALCAPS_ADDR3      (0x00014306 + 0x00001800)
  94 #define UMCLOCALCAPS_ADDR4      (0x00054306 + 0x00000000)
  95 #define UMCLOCALCAPS_ADDR5      (0x00054306 + 0x00000800)
  96 #define UMCLOCALCAPS_ADDR6      (0x00054306 + 0x00001000)
  97 #define UMCLOCALCAPS_ADDR7      (0x00054306 + 0x00001800)
  98 #define UMCLOCALCAPS_ADDR8      (0x00094306 + 0x00000000)
  99 #define UMCLOCALCAPS_ADDR9      (0x00094306 + 0x00000800)
 100 #define UMCLOCALCAPS_ADDR10     (0x00094306 + 0x00001000)
 101 #define UMCLOCALCAPS_ADDR11     (0x00094306 + 0x00001800)
 102 #define UMCLOCALCAPS_ADDR12     (0x000d4306 + 0x00000000)
 103 #define UMCLOCALCAPS_ADDR13     (0x000d4306 + 0x00000800)
 104 #define UMCLOCALCAPS_ADDR14     (0x000d4306 + 0x00001000)
 105 #define UMCLOCALCAPS_ADDR15     (0x000d4306 + 0x00001800)
 106
 107 /* Universal Memory Controller Channel config. */
 108 /* UMCCH:UMC_CONFIG */
 109 #define UMCCH_UMC_CONFIG_ADDR0  (0x00014040 + 0x00000000)
 110 #define UMCCH_UMC_CONFIG_ADDR1  (0x00014040 + 0x00000800)
 111 #define UMCCH_UMC_CONFIG_ADDR2  (0x00014040 + 0x00001000)
 112 #define UMCCH_UMC_CONFIG_ADDR3  (0x00014040 + 0x00001800)
 113 #define UMCCH_UMC_CONFIG_ADDR4  (0x00054040 + 0x00000000)
 114 #define UMCCH_UMC_CONFIG_ADDR5  (0x00054040 + 0x00000800)
 115 #define UMCCH_UMC_CONFIG_ADDR6  (0x00054040 + 0x00001000)
 116 #define UMCCH_UMC_CONFIG_ADDR7  (0x00054040 + 0x00001800)
 117 #define UMCCH_UMC_CONFIG_ADDR8  (0x00094040 + 0x00000000)
 118 #define UMCCH_UMC_CONFIG_ADDR9  (0x00094040 + 0x00000800)
 119 #define UMCCH_UMC_CONFIG_ADDR10 (0x00094040 + 0x00001000)
 120 #define UMCCH_UMC_CONFIG_ADDR11 (0x00094040 + 0x00001800)
 121 #define UMCCH_UMC_CONFIG_ADDR12 (0x000d4040 + 0x00000000)
 122 #define UMCCH_UMC_CONFIG_ADDR13 (0x000d4040 + 0x00000800)
 123 #define UMCCH_UMC_CONFIG_ADDR14 (0x000d4040 + 0x00001000)
 124 #define UMCCH_UMC_CONFIG_ADDR15 (0x000d4040 + 0x00001800)
 125
 126 /* Universal Memory Controller Channel Ecc config. */
 127 /* UMCCH:EccCtrl */
 128 #define UMCCH_ECCCTRL_ADDR0     (0x00014053 + 0x00000000)
 129 #define UMCCH_ECCCTRL_ADDR1     (0x00014053 + 0x00000800)
 130 #define UMCCH_ECCCTRL_ADDR2     (0x00014053 + 0x00001000)
 131 #define UMCCH_ECCCTRL_ADDR3     (0x00014053 + 0x00001800)
 132 #define UMCCH_ECCCTRL_ADDR4     (0x00054053 + 0x00000000)
 133 #define UMCCH_ECCCTRL_ADDR5     (0x00054053 + 0x00000800)
 134 #define UMCCH_ECCCTRL_ADDR6     (0x00054053 + 0x00001000)
 135 #define UMCCH_ECCCTRL_ADDR7     (0x00054053 + 0x00001800)
 136 #define UMCCH_ECCCTRL_ADDR8     (0x00094053 + 0x00000000)
 137 #define UMCCH_ECCCTRL_ADDR9     (0x00094053 + 0x00000800)
 138 #define UMCCH_ECCCTRL_ADDR10    (0x00094053 + 0x00001000)
 139 #define UMCCH_ECCCTRL_ADDR11    (0x00094053 + 0x00001800)
 140 #define UMCCH_ECCCTRL_ADDR12    (0x000d4053 + 0x00000000)
 141 #define UMCCH_ECCCTRL_ADDR13    (0x000d4053 + 0x00000800)
 142 #define UMCCH_ECCCTRL_ADDR14    (0x000d4053 + 0x00001000)
 143 #define UMCCH_ECCCTRL_ADDR15    (0x000d4053 + 0x00001800)
 144
 145 static const uint32_t ecc_umclocalcap_addrs[] = {
 146         UMCLOCALCAPS_ADDR0,
 147         UMCLOCALCAPS_ADDR1,
 148         UMCLOCALCAPS_ADDR2,
 149         UMCLOCALCAPS_ADDR3,
 150         UMCLOCALCAPS_ADDR4,
 151         UMCLOCALCAPS_ADDR5,
 152         UMCLOCALCAPS_ADDR6,
 153         UMCLOCALCAPS_ADDR7,
 154         UMCLOCALCAPS_ADDR8,
 155         UMCLOCALCAPS_ADDR9,
 156         UMCLOCALCAPS_ADDR10,
 157         UMCLOCALCAPS_ADDR11,
 158         UMCLOCALCAPS_ADDR12,
 159         UMCLOCALCAPS_ADDR13,
 160         UMCLOCALCAPS_ADDR14,
 161         UMCLOCALCAPS_ADDR15,
 162 };
 163
 164 static const uint32_t ecc_umcch_umc_config_addrs[] = {
 165         UMCCH_UMC_CONFIG_ADDR0,
 166         UMCCH_UMC_CONFIG_ADDR1,
 167         UMCCH_UMC_CONFIG_ADDR2,
 168         UMCCH_UMC_CONFIG_ADDR3,
 169         UMCCH_UMC_CONFIG_ADDR4,
 170         UMCCH_UMC_CONFIG_ADDR5,
 171         UMCCH_UMC_CONFIG_ADDR6,
 172         UMCCH_UMC_CONFIG_ADDR7,
 173         UMCCH_UMC_CONFIG_ADDR8,
 174         UMCCH_UMC_CONFIG_ADDR9,
 175         UMCCH_UMC_CONFIG_ADDR10,
 176         UMCCH_UMC_CONFIG_ADDR11,
 177         UMCCH_UMC_CONFIG_ADDR12,
 178         UMCCH_UMC_CONFIG_ADDR13,
 179         UMCCH_UMC_CONFIG_ADDR14,
 180         UMCCH_UMC_CONFIG_ADDR15,
 181 };
 182
 183 static const uint32_t ecc_umcch_eccctrl_addrs[] = {
 184         UMCCH_ECCCTRL_ADDR0,
 185         UMCCH_ECCCTRL_ADDR1,
 186         UMCCH_ECCCTRL_ADDR2,
 187         UMCCH_ECCCTRL_ADDR3,
 188         UMCCH_ECCCTRL_ADDR4,
 189         UMCCH_ECCCTRL_ADDR5,
 190         UMCCH_ECCCTRL_ADDR6,
 191         UMCCH_ECCCTRL_ADDR7,
 192         UMCCH_ECCCTRL_ADDR8,
 193         UMCCH_ECCCTRL_ADDR9,
 194         UMCCH_ECCCTRL_ADDR10,
 195         UMCCH_ECCCTRL_ADDR11,
 196         UMCCH_ECCCTRL_ADDR12,
 197         UMCCH_ECCCTRL_ADDR13,
 198         UMCCH_ECCCTRL_ADDR14,
 199         UMCCH_ECCCTRL_ADDR15,
 200 };
 201
 202 static int gmc_v9_0_vm_fault_interrupt_state(struct amdgpu_device *adev,
 203                                         struct amdgpu_irq_src *src,
 204                                         unsigned type,
 205                                         enum amdgpu_interrupt_state state)
 206 {
 207         struct amdgpu_vmhub *hub;
 208         u32 tmp, reg, bits, i, j;
 209
 210         bits = VM_CONTEXT1_CNTL__RANGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
 211                 VM_CONTEXT1_CNTL__DUMMY_PAGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
 212                 VM_CONTEXT1_CNTL__PDE0_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
 213                 VM_CONTEXT1_CNTL__VALID_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
 214                 VM_CONTEXT1_CNTL__READ_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
 215                 VM_CONTEXT1_CNTL__WRITE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
 216                 VM_CONTEXT1_CNTL__EXECUTE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK;
 217
 218         switch (state) {
 219         case AMDGPU_IRQ_STATE_DISABLE:
 220                 for (j = 0; j < AMDGPU_MAX_VMHUBS; j++) {
 221                         hub = &adev->vmhub[j];
 222                         for (i = 0; i < 16; i++) {
 223                                 reg = hub->vm_context0_cntl + i;
 224                                 tmp = RREG32(reg);
 225                                 tmp &= ~bits;
 226                                 WREG32(reg, tmp);
 227                         }
 228                 }
 229                 break;
 230         case AMDGPU_IRQ_STATE_ENABLE:
 231                 for (j = 0; j < AMDGPU_MAX_VMHUBS; j++) {
 232                         hub = &adev->vmhub[j];
 233                         for (i = 0; i < 16; i++) {
 234                                 reg = hub->vm_context0_cntl + i;
 235                                 tmp = RREG32(reg);
 236                                 tmp |= bits;
 237                                 WREG32(reg, tmp);
 238                         }
 239                 }
 240         default:
 241                 break;
 242         }
 243
 244         return 0;
 245 }
 246
 247 /**
 248  * vega10_ih_prescreen_iv - prescreen an interrupt vector
 249  *
 250  * @adev: amdgpu_device pointer
 251  *
 252  * Returns true if the interrupt vector should be further processed.
 253  */
 254 static bool gmc_v9_0_prescreen_iv(struct amdgpu_device *adev,
 255                                   struct amdgpu_iv_entry *entry,
 256                                   uint64_t addr)
 257 {
 258         struct amdgpu_vm *vm;
 259         u64 key;
 260         int r;
 261
 262         /* No PASID, can't identify faulting process */
 263         if (!entry->pasid)
 264                 return true;
 265
 266         /* Not a retry fault */
 267         if (!(entry->src_data[1] & 0x80))
 268                 return true;
 269
 270         /* Track retry faults in per-VM fault FIFO. */
 271         spin_lock(&adev->vm_manager.pasid_lock);
 272         vm = idr_find(&adev->vm_manager.pasid_idr, entry->pasid);
 273         if (!vm) {
 274                 /* VM not found, process it normally */
 275                 spin_unlock(&adev->vm_manager.pasid_lock);
 276                 return true;
 277         }
 278
 279         key = AMDGPU_VM_FAULT(entry->pasid, addr);
 280         r = amdgpu_vm_add_fault(vm->fault_hash, key);
 281
 282         /* Hash table is full or the fault is already being processed,
 283          * ignore further page faults
 284          */
 285         if (r != 0) {
 286                 spin_unlock(&adev->vm_manager.pasid_lock);
 287                 return false;
 288         }
 289         /* No locking required with single writer and single reader */
 290         r = kfifo_put(&vm->faults, key);
 291         if (!r) {
 292                 /* FIFO is full. Ignore it until there is space */
 293                 amdgpu_vm_clear_fault(vm->fault_hash, key);
 294                 spin_unlock(&adev->vm_manager.pasid_lock);
 295                 return false;
 296         }
 297
 298         spin_unlock(&adev->vm_manager.pasid_lock);
 299         /* It's the first fault for this address, process it normally */
 300         return true;
 301 }
 302
 303 static int gmc_v9_0_process_interrupt(struct amdgpu_device *adev,
 304                                 struct amdgpu_irq_src *source,
 305                                 struct amdgpu_iv_entry *entry)
 306 {
 307         struct amdgpu_vmhub *hub = &adev->vmhub[entry->vmid_src];
 308         bool retry_fault = !!(entry->src_data[1] & 0x80);
 309         uint32_t status = 0;
 310         u64 addr;
 311
 312         addr = (u64)entry->src_data[0] << 12;
 313         addr |= ((u64)entry->src_data[1] & 0xf) << 44;
 314
 315         if (!gmc_v9_0_prescreen_iv(adev, entry, addr))
 316                 return 1; /* This also prevents sending it to KFD */
 317
 318         if (!amdgpu_sriov_vf(adev)) {
 319                 status = RREG32(hub->vm_l2_pro_fault_status);
 320                 WREG32_P(hub->vm_l2_pro_fault_cntl, 1, ~1);
 321         }
 322
 323         if (printk_ratelimit()) {
 324                 struct amdgpu_task_info task_info;
 325
 326                 memset(&task_info, 0, sizeof(struct amdgpu_task_info));
 327                 amdgpu_vm_get_task_info(adev, entry->pasid, &task_info);
 328
 329                 dev_err(adev->dev,
 330                         "[%s] %s page fault (src_id:%u ring:%u vmid:%u "
 331                         "pasid:%u, for process %s pid %d thread %s pid %d)\n",
 332                         entry->vmid_src ? "mmhub" : "gfxhub",
 333                         retry_fault ? "retry" : "no-retry",
 334                         entry->src_id, entry->ring_id, entry->vmid,
 335                         entry->pasid, task_info.process_name, task_info.tgid,
 336                         task_info.task_name, task_info.pid);
 337                 dev_err(adev->dev, "  in page starting at address 0x%016llx from %d\n",
 338                         addr, entry->client_id);
 339                 if (!amdgpu_sriov_vf(adev))
 340                         dev_err(adev->dev,
 341                                 "VM_L2_PROTECTION_FAULT_STATUS:0x%08X\n",
 342                                 status);
 343         }
 344
 345         return 0;
 346 }
 347
 348 static const struct amdgpu_irq_src_funcs gmc_v9_0_irq_funcs = {
 349         .set = gmc_v9_0_vm_fault_interrupt_state,
 350         .process = gmc_v9_0_process_interrupt,
 351 };
 352
 353 static void gmc_v9_0_set_irq_funcs(struct amdgpu_device *adev)
 354 {
 355         adev->gmc.vm_fault.num_types = 1;
 356         adev->gmc.vm_fault.funcs = &gmc_v9_0_irq_funcs;
 357 }
 358
 359 static uint32_t gmc_v9_0_get_invalidate_req(unsigned int vmid,
 360                                         uint32_t flush_type)
 361 {
 362         u32 req = 0;
 363
 364         req = REG_SET_FIELD(req, VM_INVALIDATE_ENG0_REQ,
 365                             PER_VMID_INVALIDATE_REQ, 1 << vmid);
 366         req = REG_SET_FIELD(req, VM_INVALIDATE_ENG0_REQ, FLUSH_TYPE, flush_type);
 367         req = REG_SET_FIELD(req, VM_INVALIDATE_ENG0_REQ, INVALIDATE_L2_PTES, 1);
 368         req = REG_SET_FIELD(req, VM_INVALIDATE_ENG0_REQ, INVALIDATE_L2_PDE0, 1);
 369         req = REG_SET_FIELD(req, VM_INVALIDATE_ENG0_REQ, INVALIDATE_L2_PDE1, 1);
 370         req = REG_SET_FIELD(req, VM_INVALIDATE_ENG0_REQ, INVALIDATE_L2_PDE2, 1);
 371         req = REG_SET_FIELD(req, VM_INVALIDATE_ENG0_REQ, INVALIDATE_L1_PTES, 1);
 372         req = REG_SET_FIELD(req, VM_INVALIDATE_ENG0_REQ,
 373                             CLEAR_PROTECTION_FAULT_STATUS_ADDR, 0);
 374
 375         return req;
 376 }
 377
 378 /*
 379  * GART
 380  * VMID 0 is the physical GPU addresses as used by the kernel.
 381  * VMIDs 1-15 are used for userspace clients and are handled
 382  * by the amdgpu vm/hsa code.
 383  */
 384
 385 /**
 386  * gmc_v9_0_flush_gpu_tlb - tlb flush with certain type
 387  *
 388  * @adev: amdgpu_device pointer
 389  * @vmid: vm instance to flush
 390  * @flush_type: the flush type
 391  *
 392  * Flush the TLB for the requested page table using certain type.
 393  */
 394 static void gmc_v9_0_flush_gpu_tlb(struct amdgpu_device *adev,
 395                                 uint32_t vmid, uint32_t flush_type)
 396 {
 397         const unsigned eng = 17;
 398         unsigned i, j;
 399
 400         for (i = 0; i < AMDGPU_MAX_VMHUBS; ++i) {
 401                 struct amdgpu_vmhub *hub = &adev->vmhub[i];
 402                 u32 tmp = gmc_v9_0_get_invalidate_req(vmid, flush_type);
 403
 404                 /* This is necessary for a HW workaround under SRIOV as well
 405                  * as GFXOFF under bare metal
 406                  */
 407                 if (adev->gfx.kiq.ring.sched.ready &&
 408                     (amdgpu_sriov_runtime(adev) || !amdgpu_sriov_vf(adev)) &&
 409                     !adev->in_gpu_reset) {
 410                         uint32_t req = hub->vm_inv_eng0_req + eng;
 411                         uint32_t ack = hub->vm_inv_eng0_ack + eng;
 412
 413                         amdgpu_virt_kiq_reg_write_reg_wait(adev, req, ack, tmp,
 414                                                            1 << vmid);
 415                         continue;
 416                 }
 417
 418                 spin_lock(&adev->gmc.invalidate_lock);
 419                 WREG32_NO_KIQ(hub->vm_inv_eng0_req + eng, tmp);
 420                 for (j = 0; j < adev->usec_timeout; j++) {
 421                         tmp = RREG32_NO_KIQ(hub->vm_inv_eng0_ack + eng);
 422                         if (tmp & (1 << vmid))
 423                                 break;
 424                         udelay(1);
 425                 }
 426                 spin_unlock(&adev->gmc.invalidate_lock);
 427                 if (j < adev->usec_timeout)
 428                         continue;
 429
 430                 DRM_ERROR("Timeout waiting for VM flush ACK!\n");
 431         }
 432 }
 433
 434 static uint64_t gmc_v9_0_emit_flush_gpu_tlb(struct amdgpu_ring *ring,
 435                                             unsigned vmid, uint64_t pd_addr)
 436 {
 437         struct amdgpu_device *adev = ring->adev;
 438         struct amdgpu_vmhub *hub = &adev->vmhub[ring->funcs->vmhub];
 439         uint32_t req = gmc_v9_0_get_invalidate_req(vmid, 0);
 440         unsigned eng = ring->vm_inv_eng;
 441
 442         amdgpu_ring_emit_wreg(ring, hub->ctx0_ptb_addr_lo32 + (2 * vmid),
 443                               lower_32_bits(pd_addr));
 444
 445         amdgpu_ring_emit_wreg(ring, hub->ctx0_ptb_addr_hi32 + (2 * vmid),
 446                               upper_32_bits(pd_addr));
 447
 448         amdgpu_ring_emit_reg_write_reg_wait(ring, hub->vm_inv_eng0_req + eng,
 449                                             hub->vm_inv_eng0_ack + eng,
 450                                             req, 1 << vmid);
 451
 452         return pd_addr;
 453 }
 454
 455 static void gmc_v9_0_emit_pasid_mapping(struct amdgpu_ring *ring, unsigned vmid,
 456                                         unsigned pasid)
 457 {
 458         struct amdgpu_device *adev = ring->adev;
 459         uint32_t reg;
 460
 461         if (ring->funcs->vmhub == AMDGPU_GFXHUB)
 462                 reg = SOC15_REG_OFFSET(OSSSYS, 0, mmIH_VMID_0_LUT) + vmid;
 463         else
 464                 reg = SOC15_REG_OFFSET(OSSSYS, 0, mmIH_VMID_0_LUT_MM) + vmid;
 465
 466         amdgpu_ring_emit_wreg(ring, reg, pasid);
 467 }
 468
 469 /**
 470  * gmc_v9_0_set_pte_pde - update the page tables using MMIO
 471  *
 472  * @adev: amdgpu_device pointer
 473  * @cpu_pt_addr: cpu address of the page table
 474  * @gpu_page_idx: entry in the page table to update
 475  * @addr: dst addr to write into pte/pde
 476  * @flags: access flags
 477  *
 478  * Update the page tables using the CPU.
 479  */
 480 static int gmc_v9_0_set_pte_pde(struct amdgpu_device *adev, void *cpu_pt_addr,
 481                                 uint32_t gpu_page_idx, uint64_t addr,
 482                                 uint64_t flags)
 483 {
 484         void __iomem *ptr = (void *)cpu_pt_addr;
 485         uint64_t value;
 486
 487         /*
 488          * PTE format on VEGA 10:
 489          * 63:59 reserved
 490          * 58:57 mtype
 491          * 56 F
 492          * 55 L
 493          * 54 P
 494          * 53 SW
 495          * 52 T
 496          * 50:48 reserved
 497          * 47:12 4k physical page base address
 498          * 11:7 fragment
 499          * 6 write
 500          * 5 read
 501          * 4 exe
 502          * 3 Z
 503          * 2 snooped
 504          * 1 system
 505          * 0 valid
 506          *
 507          * PDE format on VEGA 10:
 508          * 63:59 block fragment size
 509          * 58:55 reserved
 510          * 54 P
 511          * 53:48 reserved
 512          * 47:6 physical base address of PD or PTE
 513          * 5:3 reserved
 514          * 2 C
 515          * 1 system
 516          * 0 valid
 517          */
 518
 519         /*
 520          * The following is for PTE only. GART does not have PDEs.
 521         */
 522         value = addr & 0x0000FFFFFFFFF000ULL;
 523         value |= flags;
 524         writeq(value, ptr + (gpu_page_idx * 8));
 525         return 0;
 526 }
 527
 528 static uint64_t gmc_v9_0_get_vm_pte_flags(struct amdgpu_device *adev,
 529                                                 uint32_t flags)
 530
 531 {
 532         uint64_t pte_flag = 0;
 533
 534         if (flags & AMDGPU_VM_PAGE_EXECUTABLE)
 535                 pte_flag |= AMDGPU_PTE_EXECUTABLE;
 536         if (flags & AMDGPU_VM_PAGE_READABLE)
 537                 pte_flag |= AMDGPU_PTE_READABLE;
 538         if (flags & AMDGPU_VM_PAGE_WRITEABLE)
 539                 pte_flag |= AMDGPU_PTE_WRITEABLE;
 540
 541         switch (flags & AMDGPU_VM_MTYPE_MASK) {
 542         case AMDGPU_VM_MTYPE_DEFAULT:
 543                 pte_flag |= AMDGPU_PTE_MTYPE(MTYPE_NC);
 544                 break;
 545         case AMDGPU_VM_MTYPE_NC:
 546                 pte_flag |= AMDGPU_PTE_MTYPE(MTYPE_NC);
 547                 break;
 548         case AMDGPU_VM_MTYPE_WC:
 549                 pte_flag |= AMDGPU_PTE_MTYPE(MTYPE_WC);
 550                 break;
 551         case AMDGPU_VM_MTYPE_CC:
 552                 pte_flag |= AMDGPU_PTE_MTYPE(MTYPE_CC);
 553                 break;
 554         case AMDGPU_VM_MTYPE_UC:
 555                 pte_flag |= AMDGPU_PTE_MTYPE(MTYPE_UC);
 556                 break;
 557         default:
 558                 pte_flag |= AMDGPU_PTE_MTYPE(MTYPE_NC);
 559                 break;
 560         }
 561
 562         if (flags & AMDGPU_VM_PAGE_PRT)
 563                 pte_flag |= AMDGPU_PTE_PRT;
 564
 565         return pte_flag;
 566 }
 567
 568 static void gmc_v9_0_get_vm_pde(struct amdgpu_device *adev, int level,
 569                                 uint64_t *addr, uint64_t *flags)
 570 {
 571         if (!(*flags & AMDGPU_PDE_PTE) && !(*flags & AMDGPU_PTE_SYSTEM))
 572                 *addr = adev->vm_manager.vram_base_offset + *addr -
 573                         adev->gmc.vram_start;
 574         BUG_ON(*addr & 0xFFFF00000000003FULL);
 575
 576         if (!adev->gmc.translate_further)
 577                 return;
 578
 579         if (level == AMDGPU_VM_PDB1) {
 580                 /* Set the block fragment size */
 581                 if (!(*flags & AMDGPU_PDE_PTE))
 582                         *flags |= AMDGPU_PDE_BFS(0x9);
 583
 584         } else if (level == AMDGPU_VM_PDB0) {
 585                 if (*flags & AMDGPU_PDE_PTE)
 586                         *flags &= ~AMDGPU_PDE_PTE;
 587                 else
 588                         *flags |= AMDGPU_PTE_TF;
 589         }
 590 }
 591
 592 static const struct amdgpu_gmc_funcs gmc_v9_0_gmc_funcs = {
 593         .flush_gpu_tlb = gmc_v9_0_flush_gpu_tlb,
 594         .emit_flush_gpu_tlb = gmc_v9_0_emit_flush_gpu_tlb,
 595         .emit_pasid_mapping = gmc_v9_0_emit_pasid_mapping,
 596         .set_pte_pde = gmc_v9_0_set_pte_pde,
 597         .get_vm_pte_flags = gmc_v9_0_get_vm_pte_flags,
 598         .get_vm_pde = gmc_v9_0_get_vm_pde
 599 };
 600
 601 static void gmc_v9_0_set_gmc_funcs(struct amdgpu_device *adev)
 602 {
 603         adev->gmc.gmc_funcs = &gmc_v9_0_gmc_funcs;
 604 }
 605
 606 static int gmc_v9_0_early_init(void *handle)
 607 {
 608         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 609
 610         gmc_v9_0_set_gmc_funcs(adev);
 611         gmc_v9_0_set_irq_funcs(adev);
 612
 613         adev->gmc.shared_aperture_start = 0x2000000000000000ULL;
 614         adev->gmc.shared_aperture_end =
 615                 adev->gmc.shared_aperture_start + (4ULL << 30) - 1;
 616         adev->gmc.private_aperture_start = 0x1000000000000000ULL;
 617         adev->gmc.private_aperture_end =
 618                 adev->gmc.private_aperture_start + (4ULL << 30) - 1;
 619
 620         return 0;
 621 }
 622
 623 static int gmc_v9_0_ecc_available(struct amdgpu_device *adev)
 624 {
 625         uint32_t reg_val;
 626         uint32_t reg_addr;
 627         uint32_t field_val;
 628         size_t i;
 629         uint32_t fv2;
 630         size_t lost_sheep;
 631
 632         DRM_DEBUG("ecc: gmc_v9_0_ecc_available()\n");
 633
 634         lost_sheep = 0;
 635         for (i = 0; i < ARRAY_SIZE(ecc_umclocalcap_addrs); ++i) {
 636                 reg_addr = ecc_umclocalcap_addrs[i];
 637                 DRM_DEBUG("ecc: "
 638                           "UMCCH_UmcLocalCap[%zu]: reg_addr: 0x%08x\n",
 639                           i, reg_addr);
 640                 reg_val = RREG32(reg_addr);
 641                 field_val = REG_GET_FIELD(reg_val, UMCCH0_0_UmcLocalCap,
 642                                           EccDis);
 643                 DRM_DEBUG("ecc: "
 644                           "reg_val: 0x%08x, "
 645                           "EccDis: 0x%08x, ",
 646                           reg_val, field_val);
 647                 if (field_val) {
 648                         DRM_ERROR("ecc: UmcLocalCap:EccDis is set.\n");
 649                         ++lost_sheep;
 650                 }
 651         }
 652
 653         for (i = 0; i < ARRAY_SIZE(ecc_umcch_umc_config_addrs); ++i) {
 654                 reg_addr = ecc_umcch_umc_config_addrs[i];
 655                 DRM_DEBUG("ecc: "
 656                           "UMCCH0_0_UMC_CONFIG[%zu]: reg_addr: 0x%08x",
 657                           i, reg_addr);
 658                 reg_val = RREG32(reg_addr);
 659                 field_val = REG_GET_FIELD(reg_val, UMCCH0_0_UMC_CONFIG,
 660                                           DramReady);
 661                 DRM_DEBUG("ecc: "
 662                           "reg_val: 0x%08x, "
 663                           "DramReady: 0x%08x\n",
 664                           reg_val, field_val);
 665
 666                 if (!field_val) {
 667                         DRM_ERROR("ecc: UMC_CONFIG:DramReady is not set.\n");
 668                         ++lost_sheep;
 669                 }
 670         }
 671
 672         for (i = 0; i < ARRAY_SIZE(ecc_umcch_eccctrl_addrs); ++i) {
 673                 reg_addr = ecc_umcch_eccctrl_addrs[i];
 674                 DRM_DEBUG("ecc: "
 675                           "UMCCH_EccCtrl[%zu]: reg_addr: 0x%08x, ",
 676                           i, reg_addr);
 677                 reg_val = RREG32(reg_addr);
 678                 field_val = REG_GET_FIELD(reg_val, UMCCH0_0_EccCtrl,
 679                                           WrEccEn);
 680                 fv2 = REG_GET_FIELD(reg_val, UMCCH0_0_EccCtrl,
 681                                     RdEccEn);
 682                 DRM_DEBUG("ecc: "
 683                           "reg_val: 0x%08x, "
 684                           "WrEccEn: 0x%08x, "
 685                           "RdEccEn: 0x%08x\n",
 686                           reg_val, field_val, fv2);
 687
 688                 if (!field_val) {
 689                         DRM_DEBUG("ecc: WrEccEn is not set\n");
 690                         ++lost_sheep;
 691                 }
 692                 if (!fv2) {
 693                         DRM_DEBUG("ecc: RdEccEn is not set\n");
 694                         ++lost_sheep;
 695                 }
 696         }
 697
 698         DRM_DEBUG("ecc: lost_sheep: %zu\n", lost_sheep);
 699         return lost_sheep == 0;
 700 }
 701
 702 static bool gmc_v9_0_keep_stolen_memory(struct amdgpu_device *adev)
 703 {
 704
 705         /*
 706          * TODO:
 707          * Currently there is a bug where some memory client outside
 708          * of the driver writes to first 8M of VRAM on S3 resume,
 709          * this overrides GART which by default gets placed in first 8M and
 710          * causes VM_FAULTS once GTT is accessed.
 711          * Keep the stolen memory reservation until the while this is not solved.
 712          * Also check code in gmc_v9_0_get_vbios_fb_size and gmc_v9_0_late_init
 713          */
 714         switch (adev->asic_type) {
 715         case CHIP_VEGA10:
 716                 return true;
 717         case CHIP_RAVEN:
 718         case CHIP_VEGA12:
 719         case CHIP_VEGA20:
 720         default:
 721                 return false;
 722         }
 723 }
 724
 725 static int gmc_v9_0_allocate_vm_inv_eng(struct amdgpu_device *adev)
 726 {
 727         struct amdgpu_ring *ring;
 728         unsigned vm_inv_engs[AMDGPU_MAX_VMHUBS] =
 729                 {GFXHUB_FREE_VM_INV_ENGS_BITMAP, MMHUB_FREE_VM_INV_ENGS_BITMAP};
 730         unsigned i;
 731         unsigned vmhub, inv_eng;
 732
 733         for (i = 0; i < adev->num_rings; ++i) {
 734                 ring = adev->rings[i];
 735                 vmhub = ring->funcs->vmhub;
 736
 737                 inv_eng = ffs(vm_inv_engs[vmhub]);
 738                 if (!inv_eng) {
 739                         dev_err(adev->dev, "no VM inv eng for ring %s\n",
 740                                 ring->name);
 741                         return -EINVAL;
 742                 }
 743
 744                 ring->vm_inv_eng = inv_eng - 1;
 745                 change_bit(inv_eng - 1, (unsigned long *)(&vm_inv_engs[vmhub]));
 746
 747                 dev_info(adev->dev, "ring %s uses VM inv eng %u on hub %u\n",
 748                          ring->name, ring->vm_inv_eng, ring->funcs->vmhub);
 749         }
 750
 751         return 0;
 752 }
 753
 754 static int gmc_v9_0_late_init(void *handle)
 755 {
 756         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 757         int r;
 758
 759         if (!gmc_v9_0_keep_stolen_memory(adev))
 760                 amdgpu_bo_late_init(adev);
 761
 762         r = gmc_v9_0_allocate_vm_inv_eng(adev);
 763         if (r)
 764                 return r;
 765
 766         if (adev->asic_type == CHIP_VEGA10 && !amdgpu_sriov_vf(adev)) {
 767                 r = gmc_v9_0_ecc_available(adev);
 768                 if (r == 1) {
 769                         DRM_INFO("ECC is active.\n");
 770                 } else if (r == 0) {
 771                         DRM_INFO("ECC is not present.\n");
 772                         adev->df_funcs->enable_ecc_force_par_wr_rmw(adev, false);
 773                 } else {
 774                         DRM_ERROR("gmc_v9_0_ecc_available() failed. r: %d\n", r);
 775                         return r;
 776                 }
 777         }
 778
 779         return amdgpu_irq_get(adev, &adev->gmc.vm_fault, 0);
 780 }
 781
 782 static void gmc_v9_0_vram_gtt_location(struct amdgpu_device *adev,
 783                                         struct amdgpu_gmc *mc)
 784 {
 785         u64 base = 0;
 786         if (!amdgpu_sriov_vf(adev))
 787                 base = mmhub_v1_0_get_fb_location(adev);
 788         /* add the xgmi offset of the physical node */
 789         base += adev->gmc.xgmi.physical_node_id * adev->gmc.xgmi.node_segment_size;
 790         amdgpu_gmc_vram_location(adev, &adev->gmc, base);
 791         amdgpu_gmc_gart_location(adev, mc);
 792         if (!amdgpu_sriov_vf(adev))
 793                 amdgpu_gmc_agp_location(adev, mc);
 794         /* base offset of vram pages */
 795         adev->vm_manager.vram_base_offset = gfxhub_v1_0_get_mc_fb_offset(adev);
 796
 797         /* XXX: add the xgmi offset of the physical node? */
 798         adev->vm_manager.vram_base_offset +=
 799                 adev->gmc.xgmi.physical_node_id * adev->gmc.xgmi.node_segment_size;
 800 }
 801
 802 /**
 803  * gmc_v9_0_mc_init - initialize the memory controller driver params
 804  *
 805  * @adev: amdgpu_device pointer
 806  *
 807  * Look up the amount of vram, vram width, and decide how to place
 808  * vram and gart within the GPU's physical address space.
 809  * Returns 0 for success.
 810  */
 811 static int gmc_v9_0_mc_init(struct amdgpu_device *adev)
 812 {
 813         int chansize, numchan;
 814         int r;
 815
 816         if (amdgpu_emu_mode != 1)
 817                 adev->gmc.vram_width = amdgpu_atomfirmware_get_vram_width(adev);
 818         if (!adev->gmc.vram_width) {
 819                 /* hbm memory channel size */
 820                 if (adev->flags & AMD_IS_APU)
 821                         chansize = 64;
 822                 else
 823                         chansize = 128;
 824
 825                 numchan = adev->df_funcs->get_hbm_channel_number(adev);
 826                 adev->gmc.vram_width = numchan * chansize;
 827         }
 828
 829         /* size in MB on si */
 830         adev->gmc.mc_vram_size =
 831                 adev->nbio_funcs->get_memsize(adev) * 1024ULL * 1024ULL;
 832         adev->gmc.real_vram_size = adev->gmc.mc_vram_size;
 833
 834         if (!(adev->flags & AMD_IS_APU)) {
 835                 r = amdgpu_device_resize_fb_bar(adev);
 836                 if (r)
 837                         return r;
 838         }
 839         adev->gmc.aper_base = pci_resource_start(adev->pdev, 0);
 840         adev->gmc.aper_size = pci_resource_len(adev->pdev, 0);
 841
 842 #ifdef CONFIG_X86_64
 843         if (adev->flags & AMD_IS_APU) {
 844                 adev->gmc.aper_base = gfxhub_v1_0_get_mc_fb_offset(adev);
 845                 adev->gmc.aper_size = adev->gmc.real_vram_size;
 846         }
 847 #endif
 848         /* In case the PCI BAR is larger than the actual amount of vram */
 849         adev->gmc.visible_vram_size = adev->gmc.aper_size;
 850         if (adev->gmc.visible_vram_size > adev->gmc.real_vram_size)
 851                 adev->gmc.visible_vram_size = adev->gmc.real_vram_size;
 852
 853         /* set the gart size */
 854         if (amdgpu_gart_size == -1) {
 855                 switch (adev->asic_type) {
 856                 case CHIP_VEGA10:  /* all engines support GPUVM */
 857                 case CHIP_VEGA12:  /* all engines support GPUVM */
 858                 case CHIP_VEGA20:
 859                 default:
 860                         adev->gmc.gart_size = 512ULL << 20;
 861                         break;
 862                 case CHIP_RAVEN:   /* DCE SG support */
 863                         adev->gmc.gart_size = 1024ULL << 20;
 864                         break;
 865                 }
 866         } else {
 867                 adev->gmc.gart_size = (u64)amdgpu_gart_size << 20;
 868         }
 869
 870         gmc_v9_0_vram_gtt_location(adev, &adev->gmc);
 871
 872         return 0;
 873 }
 874
 875 static int gmc_v9_0_gart_init(struct amdgpu_device *adev)
 876 {
 877         int r;
 878
 879         if (adev->gart.bo) {
 880                 WARN(1, "VEGA10 PCIE GART already initialized\n");
 881                 return 0;
 882         }
 883         /* Initialize common gart structure */
 884         r = amdgpu_gart_init(adev);
 885         if (r)
 886                 return r;
 887         adev->gart.table_size = adev->gart.num_gpu_pages * 8;
 888         adev->gart.gart_pte_flags = AMDGPU_PTE_MTYPE(MTYPE_UC) |
 889                                  AMDGPU_PTE_EXECUTABLE;
 890         return amdgpu_gart_table_vram_alloc(adev);
 891 }
 892
 893 static unsigned gmc_v9_0_get_vbios_fb_size(struct amdgpu_device *adev)
 894 {
 895         u32 d1vga_control = RREG32_SOC15(DCE, 0, mmD1VGA_CONTROL);
 896         unsigned size;
 897
 898         /*
 899          * TODO Remove once GART corruption is resolved
 900          * Check related code in gmc_v9_0_sw_fini
 901          * */
 902         if (gmc_v9_0_keep_stolen_memory(adev))
 903                 return 9 * 1024 * 1024;
 904
 905         if (REG_GET_FIELD(d1vga_control, D1VGA_CONTROL, D1VGA_MODE_ENABLE)) {
 906                 size = 9 * 1024 * 1024; /* reserve 8MB for vga emulator and 1 MB for FB */
 907         } else {
 908                 u32 viewport;
 909
 910                 switch (adev->asic_type) {
 911                 case CHIP_RAVEN:
 912                         viewport = RREG32_SOC15(DCE, 0, mmHUBP0_DCSURF_PRI_VIEWPORT_DIMENSION);
 913                         size = (REG_GET_FIELD(viewport,
 914                                               HUBP0_DCSURF_PRI_VIEWPORT_DIMENSION, PRI_VIEWPORT_HEIGHT) *
 915                                 REG_GET_FIELD(viewport,
 916                                               HUBP0_DCSURF_PRI_VIEWPORT_DIMENSION, PRI_VIEWPORT_WIDTH) *
 917                                 4);
 918                         break;
 919                 case CHIP_VEGA10:
 920                 case CHIP_VEGA12:
 921                 case CHIP_VEGA20:
 922                 default:
 923                         viewport = RREG32_SOC15(DCE, 0, mmSCL0_VIEWPORT_SIZE);
 924                         size = (REG_GET_FIELD(viewport, SCL0_VIEWPORT_SIZE, VIEWPORT_HEIGHT) *
 925                                 REG_GET_FIELD(viewport, SCL0_VIEWPORT_SIZE, VIEWPORT_WIDTH) *
 926                                 4);
 927                         break;
 928                 }
 929         }
 930         /* return 0 if the pre-OS buffer uses up most of vram */
 931         if ((adev->gmc.real_vram_size - size) < (8 * 1024 * 1024))
 932                 return 0;
 933
 934         return size;
 935 }
 936
 937 static int gmc_v9_0_sw_init(void *handle)
 938 {
 939         int r;
 940         int dma_bits;
 941         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 942
 943         gfxhub_v1_0_init(adev);
 944         mmhub_v1_0_init(adev);
 945
 946         spin_lock_init(&adev->gmc.invalidate_lock);
 947
 948         adev->gmc.vram_type = amdgpu_atomfirmware_get_vram_type(adev);
 949         switch (adev->asic_type) {
 950         case CHIP_RAVEN:
 951                 if (adev->rev_id == 0x0 || adev->rev_id == 0x1) {
 952                         amdgpu_vm_adjust_size(adev, 256 * 1024, 9, 3, 48);
 953                 } else {
 954                         /* vm_size is 128TB + 512GB for legacy 3-level page support */
 955                         amdgpu_vm_adjust_size(adev, 128 * 1024 + 512, 9, 2, 48);
 956                         adev->gmc.translate_further =
 957                                 adev->vm_manager.num_level > 1;
 958                 }
 959                 break;
 960         case CHIP_VEGA10:
 961         case CHIP_VEGA12:
 962         case CHIP_VEGA20:
 963                 /*
 964                  * To fulfill 4-level page support,
 965                  * vm size is 256TB (48bit), maximum size of Vega10,
 966                  * block size 512 (9bit)
 967                  */
 968                 /* sriov restrict max_pfn below AMDGPU_GMC_HOLE */
 969                 if (amdgpu_sriov_vf(adev))
 970                         amdgpu_vm_adjust_size(adev, 256 * 1024, 9, 3, 47);
 971                 else
 972                         amdgpu_vm_adjust_size(adev, 256 * 1024, 9, 3, 48);
 973                 break;
 974         default:
 975                 break;
 976         }
 977
 978         /* This interrupt is VMC page fault.*/
 979         r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_VMC, VMC_1_0__SRCID__VM_FAULT,
 980                                 &adev->gmc.vm_fault);
 981         if (r)
 982                 return r;
 983
 984         r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_UTCL2, UTCL2_1_0__SRCID__FAULT,
 985                                 &adev->gmc.vm_fault);
 986
 987         if (r)
 988                 return r;
 989
 990         /* Set the internal MC address mask
 991          * This is the max address of the GPU's
 992          * internal address space.
 993          */
 994         adev->gmc.mc_mask = 0xffffffffffffULL; /* 48 bit MC */
 995
 996         /* set DMA mask + need_dma32 flags.
 997          * PCIE - can handle 44-bits.
 998          * IGP - can handle 44-bits
 999          * PCI - dma32 for legacy pci gart, 44 bits on vega10
1000          */
1001         adev->need_dma32 = false;
1002         dma_bits = adev->need_dma32 ? 32 : 44;
1003         r = pci_set_dma_mask(adev->pdev, DMA_BIT_MASK(dma_bits));
1004         if (r) {
1005                 adev->need_dma32 = true;
1006                 dma_bits = 32;
1007                 printk(KERN_WARNING "amdgpu: No suitable DMA available.\n");
1008         }
1009         r = pci_set_consistent_dma_mask(adev->pdev, DMA_BIT_MASK(dma_bits));
1010         if (r) {
1011                 pci_set_consistent_dma_mask(adev->pdev, DMA_BIT_MASK(32));
1012                 printk(KERN_WARNING "amdgpu: No coherent DMA available.\n");
1013         }
1014         adev->need_swiotlb = drm_get_max_iomem() > ((u64)1 << dma_bits);
1015
1016         if (adev->gmc.xgmi.supported) {
1017                 r = gfxhub_v1_1_get_xgmi_info(adev);
1018                 if (r)
1019                         return r;
1020         }
1021
1022         r = gmc_v9_0_mc_init(adev);
1023         if (r)
1024                 return r;
1025
1026         adev->gmc.stolen_size = gmc_v9_0_get_vbios_fb_size(adev);
1027
1028         /* Memory manager */
1029         r = amdgpu_bo_init(adev);
1030         if (r)
1031                 return r;
1032
1033         r = gmc_v9_0_gart_init(adev);
1034         if (r)
1035                 return r;
1036
1037         /*
1038          * number of VMs
1039          * VMID 0 is reserved for System
1040          * amdgpu graphics/compute will use VMIDs 1-7
1041          * amdkfd will use VMIDs 8-15
1042          */
1043         adev->vm_manager.id_mgr[AMDGPU_GFXHUB].num_ids = AMDGPU_NUM_OF_VMIDS;
1044         adev->vm_manager.id_mgr[AMDGPU_MMHUB].num_ids = AMDGPU_NUM_OF_VMIDS;
1045
1046         amdgpu_vm_manager_init(adev);
1047
1048         return 0;
1049 }
1050
1051 static int gmc_v9_0_sw_fini(void *handle)
1052 {
1053         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1054
1055         amdgpu_gem_force_release(adev);
1056         amdgpu_vm_manager_fini(adev);
1057
1058         if (gmc_v9_0_keep_stolen_memory(adev))
1059                 amdgpu_bo_free_kernel(&adev->stolen_vga_memory, NULL, NULL);
1060
1061         amdgpu_gart_table_vram_free(adev);
1062         amdgpu_bo_fini(adev);
1063         amdgpu_gart_fini(adev);
1064
1065         return 0;
1066 }
1067
1068 static void gmc_v9_0_init_golden_registers(struct amdgpu_device *adev)
1069 {
1070
1071         switch (adev->asic_type) {
1072         case CHIP_VEGA10:
1073         case CHIP_VEGA20:
1074                 soc15_program_register_sequence(adev,
1075                                                 golden_settings_mmhub_1_0_0,
1076                                                 ARRAY_SIZE(golden_settings_mmhub_1_0_0));
1077                 soc15_program_register_sequence(adev,
1078                                                 golden_settings_athub_1_0_0,
1079                                                 ARRAY_SIZE(golden_settings_athub_1_0_0));
1080                 break;
1081         case CHIP_VEGA12:
1082                 break;
1083         case CHIP_RAVEN:
1084                 soc15_program_register_sequence(adev,
1085                                                 golden_settings_athub_1_0_0,
1086                                                 ARRAY_SIZE(golden_settings_athub_1_0_0));
1087                 break;
1088         default:
1089                 break;
1090         }
1091 }
1092
1093 /**
1094  * gmc_v9_0_gart_enable - gart enable
1095  *
1096  * @adev: amdgpu_device pointer
1097  */
1098 static int gmc_v9_0_gart_enable(struct amdgpu_device *adev)
1099 {
1100         int r;
1101         bool value;
1102         u32 tmp;
1103
1104         amdgpu_device_program_register_sequence(adev,
1105                                                 golden_settings_vega10_hdp,
1106                                                 ARRAY_SIZE(golden_settings_vega10_hdp));
1107
1108         if (adev->gart.bo == NULL) {
1109                 dev_err(adev->dev, "No VRAM object for PCIE GART.\n");
1110                 return -EINVAL;
1111         }
1112         r = amdgpu_gart_table_vram_pin(adev);
1113         if (r)
1114                 return r;
1115
1116         switch (adev->asic_type) {
1117         case CHIP_RAVEN:
1118                 mmhub_v1_0_update_power_gating(adev, true);
1119                 break;
1120         default:
1121                 break;
1122         }
1123
1124         r = gfxhub_v1_0_gart_enable(adev);
1125         if (r)
1126                 return r;
1127
1128         r = mmhub_v1_0_gart_enable(adev);
1129         if (r)
1130                 return r;
1131
1132         WREG32_FIELD15(HDP, 0, HDP_MISC_CNTL, FLUSH_INVALIDATE_CACHE, 1);
1133
1134         tmp = RREG32_SOC15(HDP, 0, mmHDP_HOST_PATH_CNTL);
1135         WREG32_SOC15(HDP, 0, mmHDP_HOST_PATH_CNTL, tmp);
1136
1137         /* After HDP is initialized, flush HDP.*/
1138         adev->nbio_funcs->hdp_flush(adev, NULL);
1139
1140         if (amdgpu_vm_fault_stop == AMDGPU_VM_FAULT_STOP_ALWAYS)
1141                 value = false;
1142         else
1143                 value = true;
1144
1145         gfxhub_v1_0_set_fault_enable_default(adev, value);
1146         mmhub_v1_0_set_fault_enable_default(adev, value);
1147         gmc_v9_0_flush_gpu_tlb(adev, 0, 0);
1148
1149         DRM_INFO("PCIE GART of %uM enabled (table at 0x%016llX).\n",
1150                  (unsigned)(adev->gmc.gart_size >> 20),
1151                  (unsigned long long)amdgpu_bo_gpu_offset(adev->gart.bo));
1152         adev->gart.ready = true;
1153         return 0;
1154 }
1155
1156 static int gmc_v9_0_hw_init(void *handle)
1157 {
1158         int r;
1159         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1160
1161         /* The sequence of these two function calls matters.*/
1162         gmc_v9_0_init_golden_registers(adev);
1163
1164         if (adev->mode_info.num_crtc) {
1165                 /* Lockout access through VGA aperture*/
1166                 WREG32_FIELD15(DCE, 0, VGA_HDP_CONTROL, VGA_MEMORY_DISABLE, 1);
1167
1168                 /* disable VGA render */
1169                 WREG32_FIELD15(DCE, 0, VGA_RENDER_CONTROL, VGA_VSTATUS_CNTL, 0);
1170         }
1171
1172         r = gmc_v9_0_gart_enable(adev);
1173
1174         return r;
1175 }
1176
1177 /**
1178  * gmc_v9_0_gart_disable - gart disable
1179  *
1180  * @adev: amdgpu_device pointer
1181  *
1182  * This disables all VM page table.
1183  */
1184 static void gmc_v9_0_gart_disable(struct amdgpu_device *adev)
1185 {
1186         gfxhub_v1_0_gart_disable(adev);
1187         mmhub_v1_0_gart_disable(adev);
1188         amdgpu_gart_table_vram_unpin(adev);
1189 }
1190
1191 static int gmc_v9_0_hw_fini(void *handle)
1192 {
1193         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1194
1195         if (amdgpu_sriov_vf(adev)) {
1196                 /* full access mode, so don't touch any GMC register */
1197                 DRM_DEBUG("For SRIOV client, shouldn't do anything.\n");
1198                 return 0;
1199         }
1200
1201         amdgpu_irq_put(adev, &adev->gmc.vm_fault, 0);
1202         gmc_v9_0_gart_disable(adev);
1203
1204         return 0;
1205 }
1206
1207 static int gmc_v9_0_suspend(void *handle)
1208 {
1209         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1210
1211         return gmc_v9_0_hw_fini(adev);
1212 }
1213
1214 static int gmc_v9_0_resume(void *handle)
1215 {
1216         int r;
1217         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1218
1219         r = gmc_v9_0_hw_init(adev);
1220         if (r)
1221                 return r;
1222
1223         amdgpu_vmid_reset_all(adev);
1224
1225         return 0;
1226 }
1227
1228 static bool gmc_v9_0_is_idle(void *handle)
1229 {
1230         /* MC is always ready in GMC v9.*/
1231         return true;
1232 }
1233
1234 static int gmc_v9_0_wait_for_idle(void *handle)
1235 {
1236         /* There is no need to wait for MC idle in GMC v9.*/
1237         return 0;
1238 }
1239
1240 static int gmc_v9_0_soft_reset(void *handle)
1241 {
1242         /* XXX for emulation.*/
1243         return 0;
1244 }
1245
1246 static int gmc_v9_0_set_clockgating_state(void *handle,
1247                                         enum amd_clockgating_state state)
1248 {
1249         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1250
1251         return mmhub_v1_0_set_clockgating(adev, state);
1252 }
1253
1254 static void gmc_v9_0_get_clockgating_state(void *handle, u32 *flags)
1255 {
1256         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1257
1258         mmhub_v1_0_get_clockgating(adev, flags);
1259 }
1260
1261 static int gmc_v9_0_set_powergating_state(void *handle,
1262                                         enum amd_powergating_state state)
1263 {
1264         return 0;
1265 }
1266
1267 const struct amd_ip_funcs gmc_v9_0_ip_funcs = {
1268         .name = "gmc_v9_0",
1269         .early_init = gmc_v9_0_early_init,
1270         .late_init = gmc_v9_0_late_init,
1271         .sw_init = gmc_v9_0_sw_init,
1272         .sw_fini = gmc_v9_0_sw_fini,
1273         .hw_init = gmc_v9_0_hw_init,
1274         .hw_fini = gmc_v9_0_hw_fini,
1275         .suspend = gmc_v9_0_suspend,
1276         .resume = gmc_v9_0_resume,
1277         .is_idle = gmc_v9_0_is_idle,
1278         .wait_for_idle = gmc_v9_0_wait_for_idle,
1279         .soft_reset = gmc_v9_0_soft_reset,
1280         .set_clockgating_state = gmc_v9_0_set_clockgating_state,
1281         .set_powergating_state = gmc_v9_0_set_powergating_state,
1282         .get_clockgating_state = gmc_v9_0_get_clockgating_state,
1283 };
1284
1285 const struct amdgpu_ip_block_version gmc_v9_0_ip_block =
1286 {
1287         .type = AMD_IP_BLOCK_TYPE_GMC,
1288         .major = 9,
1289         .minor = 0,
1290         .rev = 0,
1291         .funcs = &gmc_v9_0_ip_funcs,
1292 };