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 "amdgpu.h"
  25 #include "gmc_v9_0.h"
  26 #include "amdgpu_atomfirmware.h"
  27
  28 #include "hdp/hdp_4_0_offset.h"
  29 #include "hdp/hdp_4_0_sh_mask.h"
  30 #include "gc/gc_9_0_sh_mask.h"
  31 #include "dce/dce_12_0_offset.h"
  32 #include "dce/dce_12_0_sh_mask.h"
  33 #include "vega10_enum.h"
  34 #include "mmhub/mmhub_1_0_offset.h"
  35 #include "athub/athub_1_0_offset.h"
  36
  37 #include "soc15.h"
  38 #include "soc15_common.h"
  39 #include "umc/umc_6_0_sh_mask.h"
  40
  41 #include "gfxhub_v1_0.h"
  42 #include "mmhub_v1_0.h"
  43
  44 #define mmDF_CS_AON0_DramBaseAddress0                                                                  0x0044
  45 #define mmDF_CS_AON0_DramBaseAddress0_BASE_IDX                                                         0
  46 //DF_CS_AON0_DramBaseAddress0
  47 #define DF_CS_AON0_DramBaseAddress0__AddrRngVal__SHIFT                                                        0x0
  48 #define DF_CS_AON0_DramBaseAddress0__LgcyMmioHoleEn__SHIFT                                                    0x1
  49 #define DF_CS_AON0_DramBaseAddress0__IntLvNumChan__SHIFT                                                      0x4
  50 #define DF_CS_AON0_DramBaseAddress0__IntLvAddrSel__SHIFT                                                      0x8
  51 #define DF_CS_AON0_DramBaseAddress0__DramBaseAddr__SHIFT                                                      0xc
  52 #define DF_CS_AON0_DramBaseAddress0__AddrRngVal_MASK                                                          0x00000001L
  53 #define DF_CS_AON0_DramBaseAddress0__LgcyMmioHoleEn_MASK                                                      0x00000002L
  54 #define DF_CS_AON0_DramBaseAddress0__IntLvNumChan_MASK                                                        0x000000F0L
  55 #define DF_CS_AON0_DramBaseAddress0__IntLvAddrSel_MASK                                                        0x00000700L
  56 #define DF_CS_AON0_DramBaseAddress0__DramBaseAddr_MASK                                                        0xFFFFF000L
  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 static int gmc_v9_0_process_interrupt(struct amdgpu_device *adev,
 248                                 struct amdgpu_irq_src *source,
 249                                 struct amdgpu_iv_entry *entry)
 250 {
 251         struct amdgpu_vmhub *hub = &adev->vmhub[entry->vmid_src];
 252         uint32_t status = 0;
 253         u64 addr;
 254
 255         addr = (u64)entry->src_data[0] << 12;
 256         addr |= ((u64)entry->src_data[1] & 0xf) << 44;
 257
 258         if (!amdgpu_sriov_vf(adev)) {
 259                 status = RREG32(hub->vm_l2_pro_fault_status);
 260                 WREG32_P(hub->vm_l2_pro_fault_cntl, 1, ~1);
 261         }
 262
 263         if (printk_ratelimit()) {
 264                 dev_err(adev->dev,
 265                         "[%s] VMC page fault (src_id:%u ring:%u vmid:%u pas_id:%u)\n",
 266                         entry->vmid_src ? "mmhub" : "gfxhub",
 267                         entry->src_id, entry->ring_id, entry->vmid,
 268                         entry->pas_id);
 269                 dev_err(adev->dev, "  at page 0x%016llx from %d\n",
 270                         addr, entry->client_id);
 271                 if (!amdgpu_sriov_vf(adev))
 272                         dev_err(adev->dev,
 273                                 "VM_L2_PROTECTION_FAULT_STATUS:0x%08X\n",
 274                                 status);
 275         }
 276
 277         return 0;
 278 }
 279
 280 static const struct amdgpu_irq_src_funcs gmc_v9_0_irq_funcs = {
 281         .set = gmc_v9_0_vm_fault_interrupt_state,
 282         .process = gmc_v9_0_process_interrupt,
 283 };
 284
 285 static void gmc_v9_0_set_irq_funcs(struct amdgpu_device *adev)
 286 {
 287         adev->mc.vm_fault.num_types = 1;
 288         adev->mc.vm_fault.funcs = &gmc_v9_0_irq_funcs;
 289 }
 290
 291 static uint32_t gmc_v9_0_get_invalidate_req(unsigned int vmid)
 292 {
 293         u32 req = 0;
 294
 295         /* invalidate using legacy mode on vmid*/
 296         req = REG_SET_FIELD(req, VM_INVALIDATE_ENG0_REQ,
 297                             PER_VMID_INVALIDATE_REQ, 1 << vmid);
 298         req = REG_SET_FIELD(req, VM_INVALIDATE_ENG0_REQ, FLUSH_TYPE, 0);
 299         req = REG_SET_FIELD(req, VM_INVALIDATE_ENG0_REQ, INVALIDATE_L2_PTES, 1);
 300         req = REG_SET_FIELD(req, VM_INVALIDATE_ENG0_REQ, INVALIDATE_L2_PDE0, 1);
 301         req = REG_SET_FIELD(req, VM_INVALIDATE_ENG0_REQ, INVALIDATE_L2_PDE1, 1);
 302         req = REG_SET_FIELD(req, VM_INVALIDATE_ENG0_REQ, INVALIDATE_L2_PDE2, 1);
 303         req = REG_SET_FIELD(req, VM_INVALIDATE_ENG0_REQ, INVALIDATE_L1_PTES, 1);
 304         req = REG_SET_FIELD(req, VM_INVALIDATE_ENG0_REQ,
 305                             CLEAR_PROTECTION_FAULT_STATUS_ADDR, 0);
 306
 307         return req;
 308 }
 309
 310 /*
 311  * GART
 312  * VMID 0 is the physical GPU addresses as used by the kernel.
 313  * VMIDs 1-15 are used for userspace clients and are handled
 314  * by the amdgpu vm/hsa code.
 315  */
 316
 317 /**
 318  * gmc_v9_0_gart_flush_gpu_tlb - gart tlb flush callback
 319  *
 320  * @adev: amdgpu_device pointer
 321  * @vmid: vm instance to flush
 322  *
 323  * Flush the TLB for the requested page table.
 324  */
 325 static void gmc_v9_0_gart_flush_gpu_tlb(struct amdgpu_device *adev,
 326                                         uint32_t vmid)
 327 {
 328         /* Use register 17 for GART */
 329         const unsigned eng = 17;
 330         unsigned i, j;
 331
 332         /* flush hdp cache */
 333         adev->nbio_funcs->hdp_flush(adev);
 334
 335         spin_lock(&adev->mc.invalidate_lock);
 336
 337         for (i = 0; i < AMDGPU_MAX_VMHUBS; ++i) {
 338                 struct amdgpu_vmhub *hub = &adev->vmhub[i];
 339                 u32 tmp = gmc_v9_0_get_invalidate_req(vmid);
 340
 341                 WREG32_NO_KIQ(hub->vm_inv_eng0_req + eng, tmp);
 342
 343                 /* Busy wait for ACK.*/
 344                 for (j = 0; j < 100; j++) {
 345                         tmp = RREG32_NO_KIQ(hub->vm_inv_eng0_ack + eng);
 346                         tmp &= 1 << vmid;
 347                         if (tmp)
 348                                 break;
 349                         cpu_relax();
 350                 }
 351                 if (j < 100)
 352                         continue;
 353
 354                 /* Wait for ACK with a delay.*/
 355                 for (j = 0; j < adev->usec_timeout; j++) {
 356                         tmp = RREG32_NO_KIQ(hub->vm_inv_eng0_ack + eng);
 357                         tmp &= 1 << vmid;
 358                         if (tmp)
 359                                 break;
 360                         udelay(1);
 361                 }
 362                 if (j < adev->usec_timeout)
 363                         continue;
 364
 365                 DRM_ERROR("Timeout waiting for VM flush ACK!\n");
 366         }
 367
 368         spin_unlock(&adev->mc.invalidate_lock);
 369 }
 370
 371 /**
 372  * gmc_v9_0_gart_set_pte_pde - update the page tables using MMIO
 373  *
 374  * @adev: amdgpu_device pointer
 375  * @cpu_pt_addr: cpu address of the page table
 376  * @gpu_page_idx: entry in the page table to update
 377  * @addr: dst addr to write into pte/pde
 378  * @flags: access flags
 379  *
 380  * Update the page tables using the CPU.
 381  */
 382 static int gmc_v9_0_gart_set_pte_pde(struct amdgpu_device *adev,
 383                                         void *cpu_pt_addr,
 384                                         uint32_t gpu_page_idx,
 385                                         uint64_t addr,
 386                                         uint64_t flags)
 387 {
 388         void __iomem *ptr = (void *)cpu_pt_addr;
 389         uint64_t value;
 390
 391         /*
 392          * PTE format on VEGA 10:
 393          * 63:59 reserved
 394          * 58:57 mtype
 395          * 56 F
 396          * 55 L
 397          * 54 P
 398          * 53 SW
 399          * 52 T
 400          * 50:48 reserved
 401          * 47:12 4k physical page base address
 402          * 11:7 fragment
 403          * 6 write
 404          * 5 read
 405          * 4 exe
 406          * 3 Z
 407          * 2 snooped
 408          * 1 system
 409          * 0 valid
 410          *
 411          * PDE format on VEGA 10:
 412          * 63:59 block fragment size
 413          * 58:55 reserved
 414          * 54 P
 415          * 53:48 reserved
 416          * 47:6 physical base address of PD or PTE
 417          * 5:3 reserved
 418          * 2 C
 419          * 1 system
 420          * 0 valid
 421          */
 422
 423         /*
 424          * The following is for PTE only. GART does not have PDEs.
 425         */
 426         value = addr & 0x0000FFFFFFFFF000ULL;
 427         value |= flags;
 428         writeq(value, ptr + (gpu_page_idx * 8));
 429         return 0;
 430 }
 431
 432 static uint64_t gmc_v9_0_get_vm_pte_flags(struct amdgpu_device *adev,
 433                                                 uint32_t flags)
 434
 435 {
 436         uint64_t pte_flag = 0;
 437
 438         if (flags & AMDGPU_VM_PAGE_EXECUTABLE)
 439                 pte_flag |= AMDGPU_PTE_EXECUTABLE;
 440         if (flags & AMDGPU_VM_PAGE_READABLE)
 441                 pte_flag |= AMDGPU_PTE_READABLE;
 442         if (flags & AMDGPU_VM_PAGE_WRITEABLE)
 443                 pte_flag |= AMDGPU_PTE_WRITEABLE;
 444
 445         switch (flags & AMDGPU_VM_MTYPE_MASK) {
 446         case AMDGPU_VM_MTYPE_DEFAULT:
 447                 pte_flag |= AMDGPU_PTE_MTYPE(MTYPE_NC);
 448                 break;
 449         case AMDGPU_VM_MTYPE_NC:
 450                 pte_flag |= AMDGPU_PTE_MTYPE(MTYPE_NC);
 451                 break;
 452         case AMDGPU_VM_MTYPE_WC:
 453                 pte_flag |= AMDGPU_PTE_MTYPE(MTYPE_WC);
 454                 break;
 455         case AMDGPU_VM_MTYPE_CC:
 456                 pte_flag |= AMDGPU_PTE_MTYPE(MTYPE_CC);
 457                 break;
 458         case AMDGPU_VM_MTYPE_UC:
 459                 pte_flag |= AMDGPU_PTE_MTYPE(MTYPE_UC);
 460                 break;
 461         default:
 462                 pte_flag |= AMDGPU_PTE_MTYPE(MTYPE_NC);
 463                 break;
 464         }
 465
 466         if (flags & AMDGPU_VM_PAGE_PRT)
 467                 pte_flag |= AMDGPU_PTE_PRT;
 468
 469         return pte_flag;
 470 }
 471
 472 static void gmc_v9_0_get_vm_pde(struct amdgpu_device *adev, int level,
 473                                 uint64_t *addr, uint64_t *flags)
 474 {
 475         if (!(*flags & AMDGPU_PDE_PTE))
 476                 *addr = adev->vm_manager.vram_base_offset + *addr -
 477                         adev->mc.vram_start;
 478         BUG_ON(*addr & 0xFFFF00000000003FULL);
 479
 480         if (!adev->mc.translate_further)
 481                 return;
 482
 483         if (level == AMDGPU_VM_PDB1) {
 484                 /* Set the block fragment size */
 485                 if (!(*flags & AMDGPU_PDE_PTE))
 486                         *flags |= AMDGPU_PDE_BFS(0x9);
 487
 488         } else if (level == AMDGPU_VM_PDB0) {
 489                 if (*flags & AMDGPU_PDE_PTE)
 490                         *flags &= ~AMDGPU_PDE_PTE;
 491                 else
 492                         *flags |= AMDGPU_PTE_TF;
 493         }
 494 }
 495
 496 static const struct amdgpu_gart_funcs gmc_v9_0_gart_funcs = {
 497         .flush_gpu_tlb = gmc_v9_0_gart_flush_gpu_tlb,
 498         .set_pte_pde = gmc_v9_0_gart_set_pte_pde,
 499         .get_invalidate_req = gmc_v9_0_get_invalidate_req,
 500         .get_vm_pte_flags = gmc_v9_0_get_vm_pte_flags,
 501         .get_vm_pde = gmc_v9_0_get_vm_pde
 502 };
 503
 504 static void gmc_v9_0_set_gart_funcs(struct amdgpu_device *adev)
 505 {
 506         if (adev->gart.gart_funcs == NULL)
 507                 adev->gart.gart_funcs = &gmc_v9_0_gart_funcs;
 508 }
 509
 510 static int gmc_v9_0_early_init(void *handle)
 511 {
 512         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 513
 514         gmc_v9_0_set_gart_funcs(adev);
 515         gmc_v9_0_set_irq_funcs(adev);
 516
 517         adev->mc.shared_aperture_start = 0x2000000000000000ULL;
 518         adev->mc.shared_aperture_end =
 519                 adev->mc.shared_aperture_start + (4ULL << 30) - 1;
 520         adev->mc.private_aperture_start =
 521                 adev->mc.shared_aperture_end + 1;
 522         adev->mc.private_aperture_end =
 523                 adev->mc.private_aperture_start + (4ULL << 30) - 1;
 524
 525         return 0;
 526 }
 527
 528 static int gmc_v9_0_ecc_available(struct amdgpu_device *adev)
 529 {
 530         uint32_t reg_val;
 531         uint32_t reg_addr;
 532         uint32_t field_val;
 533         size_t i;
 534         uint32_t fv2;
 535         size_t lost_sheep;
 536
 537         DRM_DEBUG("ecc: gmc_v9_0_ecc_available()\n");
 538
 539         lost_sheep = 0;
 540         for (i = 0; i < ARRAY_SIZE(ecc_umclocalcap_addrs); ++i) {
 541                 reg_addr = ecc_umclocalcap_addrs[i];
 542                 DRM_DEBUG("ecc: "
 543                           "UMCCH_UmcLocalCap[%zu]: reg_addr: 0x%08x\n",
 544                           i, reg_addr);
 545                 reg_val = RREG32(reg_addr);
 546                 field_val = REG_GET_FIELD(reg_val, UMCCH0_0_UmcLocalCap,
 547                                           EccDis);
 548                 DRM_DEBUG("ecc: "
 549                           "reg_val: 0x%08x, "
 550                           "EccDis: 0x%08x, ",
 551                           reg_val, field_val);
 552                 if (field_val) {
 553                         DRM_ERROR("ecc: UmcLocalCap:EccDis is set.\n");
 554                         ++lost_sheep;
 555                 }
 556         }
 557
 558         for (i = 0; i < ARRAY_SIZE(ecc_umcch_umc_config_addrs); ++i) {
 559                 reg_addr = ecc_umcch_umc_config_addrs[i];
 560                 DRM_DEBUG("ecc: "
 561                           "UMCCH0_0_UMC_CONFIG[%zu]: reg_addr: 0x%08x",
 562                           i, reg_addr);
 563                 reg_val = RREG32(reg_addr);
 564                 field_val = REG_GET_FIELD(reg_val, UMCCH0_0_UMC_CONFIG,
 565                                           DramReady);
 566                 DRM_DEBUG("ecc: "
 567                           "reg_val: 0x%08x, "
 568                           "DramReady: 0x%08x\n",
 569                           reg_val, field_val);
 570
 571                 if (!field_val) {
 572                         DRM_ERROR("ecc: UMC_CONFIG:DramReady is not set.\n");
 573                         ++lost_sheep;
 574                 }
 575         }
 576
 577         for (i = 0; i < ARRAY_SIZE(ecc_umcch_eccctrl_addrs); ++i) {
 578                 reg_addr = ecc_umcch_eccctrl_addrs[i];
 579                 DRM_DEBUG("ecc: "
 580                           "UMCCH_EccCtrl[%zu]: reg_addr: 0x%08x, ",
 581                           i, reg_addr);
 582                 reg_val = RREG32(reg_addr);
 583                 field_val = REG_GET_FIELD(reg_val, UMCCH0_0_EccCtrl,
 584                                           WrEccEn);
 585                 fv2 = REG_GET_FIELD(reg_val, UMCCH0_0_EccCtrl,
 586                                     RdEccEn);
 587                 DRM_DEBUG("ecc: "
 588                           "reg_val: 0x%08x, "
 589                           "WrEccEn: 0x%08x, "
 590                           "RdEccEn: 0x%08x\n",
 591                           reg_val, field_val, fv2);
 592
 593                 if (!field_val) {
 594                         DRM_DEBUG("ecc: WrEccEn is not set\n");
 595                         ++lost_sheep;
 596                 }
 597                 if (!fv2) {
 598                         DRM_DEBUG("ecc: RdEccEn is not set\n");
 599                         ++lost_sheep;
 600                 }
 601         }
 602
 603         DRM_DEBUG("ecc: lost_sheep: %zu\n", lost_sheep);
 604         return lost_sheep == 0;
 605 }
 606
 607 static int gmc_v9_0_late_init(void *handle)
 608 {
 609         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 610         /*
 611          * The latest engine allocation on gfx9 is:
 612          * Engine 0, 1: idle
 613          * Engine 2, 3: firmware
 614          * Engine 4~13: amdgpu ring, subject to change when ring number changes
 615          * Engine 14~15: idle
 616          * Engine 16: kfd tlb invalidation
 617          * Engine 17: Gart flushes
 618          */
 619         unsigned vm_inv_eng[AMDGPU_MAX_VMHUBS] = { 4, 4 };
 620         unsigned i;
 621         int r;
 622
 623         for(i = 0; i < adev->num_rings; ++i) {
 624                 struct amdgpu_ring *ring = adev->rings[i];
 625                 unsigned vmhub = ring->funcs->vmhub;
 626
 627                 ring->vm_inv_eng = vm_inv_eng[vmhub]++;
 628                 dev_info(adev->dev, "ring %u(%s) uses VM inv eng %u on hub %u\n",
 629                          ring->idx, ring->name, ring->vm_inv_eng,
 630                          ring->funcs->vmhub);
 631         }
 632
 633         /* Engine 16 is used for KFD and 17 for GART flushes */
 634         for(i = 0; i < AMDGPU_MAX_VMHUBS; ++i)
 635                 BUG_ON(vm_inv_eng[i] > 16);
 636
 637         if (adev->asic_type == CHIP_VEGA10 && !amdgpu_sriov_vf(adev)) {
 638                 r = gmc_v9_0_ecc_available(adev);
 639                 if (r == 1) {
 640                         DRM_INFO("ECC is active.\n");
 641                 } else if (r == 0) {
 642                         DRM_INFO("ECC is not present.\n");
 643                 } else {
 644                         DRM_ERROR("gmc_v9_0_ecc_available() failed. r: %d\n", r);
 645                         return r;
 646                 }
 647         }
 648
 649         return amdgpu_irq_get(adev, &adev->mc.vm_fault, 0);
 650 }
 651
 652 static void gmc_v9_0_vram_gtt_location(struct amdgpu_device *adev,
 653                                         struct amdgpu_mc *mc)
 654 {
 655         u64 base = 0;
 656         if (!amdgpu_sriov_vf(adev))
 657                 base = mmhub_v1_0_get_fb_location(adev);
 658         amdgpu_device_vram_location(adev, &adev->mc, base);
 659         amdgpu_device_gart_location(adev, mc);
 660         /* base offset of vram pages */
 661         if (adev->flags & AMD_IS_APU)
 662                 adev->vm_manager.vram_base_offset = gfxhub_v1_0_get_mc_fb_offset(adev);
 663         else
 664                 adev->vm_manager.vram_base_offset = 0;
 665 }
 666
 667 /**
 668  * gmc_v9_0_mc_init - initialize the memory controller driver params
 669  *
 670  * @adev: amdgpu_device pointer
 671  *
 672  * Look up the amount of vram, vram width, and decide how to place
 673  * vram and gart within the GPU's physical address space.
 674  * Returns 0 for success.
 675  */
 676 static int gmc_v9_0_mc_init(struct amdgpu_device *adev)
 677 {
 678         u32 tmp;
 679         int chansize, numchan;
 680         int r;
 681
 682         adev->mc.vram_width = amdgpu_atomfirmware_get_vram_width(adev);
 683         if (!adev->mc.vram_width) {
 684                 /* hbm memory channel size */
 685                 if (adev->flags & AMD_IS_APU)
 686                         chansize = 64;
 687                 else
 688                         chansize = 128;
 689
 690                 tmp = RREG32_SOC15(DF, 0, mmDF_CS_AON0_DramBaseAddress0);
 691                 tmp &= DF_CS_AON0_DramBaseAddress0__IntLvNumChan_MASK;
 692                 tmp >>= DF_CS_AON0_DramBaseAddress0__IntLvNumChan__SHIFT;
 693                 switch (tmp) {
 694                 case 0:
 695                 default:
 696                         numchan = 1;
 697                         break;
 698                 case 1:
 699                         numchan = 2;
 700                         break;
 701                 case 2:
 702                         numchan = 0;
 703                         break;
 704                 case 3:
 705                         numchan = 4;
 706                         break;
 707                 case 4:
 708                         numchan = 0;
 709                         break;
 710                 case 5:
 711                         numchan = 8;
 712                         break;
 713                 case 6:
 714                         numchan = 0;
 715                         break;
 716                 case 7:
 717                         numchan = 16;
 718                         break;
 719                 case 8:
 720                         numchan = 2;
 721                         break;
 722                 }
 723                 adev->mc.vram_width = numchan * chansize;
 724         }
 725
 726         /* size in MB on si */
 727         adev->mc.mc_vram_size =
 728                 adev->nbio_funcs->get_memsize(adev) * 1024ULL * 1024ULL;
 729         adev->mc.real_vram_size = adev->mc.mc_vram_size;
 730
 731         if (!(adev->flags & AMD_IS_APU)) {
 732                 r = amdgpu_device_resize_fb_bar(adev);
 733                 if (r)
 734                         return r;
 735         }
 736         adev->mc.aper_base = pci_resource_start(adev->pdev, 0);
 737         adev->mc.aper_size = pci_resource_len(adev->pdev, 0);
 738
 739         /* In case the PCI BAR is larger than the actual amount of vram */
 740         adev->mc.visible_vram_size = adev->mc.aper_size;
 741         if (adev->mc.visible_vram_size > adev->mc.real_vram_size)
 742                 adev->mc.visible_vram_size = adev->mc.real_vram_size;
 743
 744         /* set the gart size */
 745         if (amdgpu_gart_size == -1) {
 746                 switch (adev->asic_type) {
 747                 case CHIP_VEGA10:  /* all engines support GPUVM */
 748                 default:
 749                         adev->mc.gart_size = 256ULL << 20;
 750                         break;
 751                 case CHIP_RAVEN:   /* DCE SG support */
 752                         adev->mc.gart_size = 1024ULL << 20;
 753                         break;
 754                 }
 755         } else {
 756                 adev->mc.gart_size = (u64)amdgpu_gart_size << 20;
 757         }
 758
 759         gmc_v9_0_vram_gtt_location(adev, &adev->mc);
 760
 761         return 0;
 762 }
 763
 764 static int gmc_v9_0_gart_init(struct amdgpu_device *adev)
 765 {
 766         int r;
 767
 768         if (adev->gart.robj) {
 769                 WARN(1, "VEGA10 PCIE GART already initialized\n");
 770                 return 0;
 771         }
 772         /* Initialize common gart structure */
 773         r = amdgpu_gart_init(adev);
 774         if (r)
 775                 return r;
 776         adev->gart.table_size = adev->gart.num_gpu_pages * 8;
 777         adev->gart.gart_pte_flags = AMDGPU_PTE_MTYPE(MTYPE_UC) |
 778                                  AMDGPU_PTE_EXECUTABLE;
 779         return amdgpu_gart_table_vram_alloc(adev);
 780 }
 781
 782 static int gmc_v9_0_sw_init(void *handle)
 783 {
 784         int r;
 785         int dma_bits;
 786         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 787
 788         gfxhub_v1_0_init(adev);
 789         mmhub_v1_0_init(adev);
 790
 791         spin_lock_init(&adev->mc.invalidate_lock);
 792
 793         switch (adev->asic_type) {
 794         case CHIP_RAVEN:
 795                 adev->mc.vram_type = AMDGPU_VRAM_TYPE_UNKNOWN;
 796                 if (adev->rev_id == 0x0 || adev->rev_id == 0x1) {
 797                         amdgpu_vm_adjust_size(adev, 256 * 1024, 9, 3, 48);
 798                 } else {
 799                         /* vm_size is 128TB + 512GB for legacy 3-level page support */
 800                         amdgpu_vm_adjust_size(adev, 128 * 1024 + 512, 9, 2, 48);
 801                         adev->mc.translate_further =
 802                                 adev->vm_manager.num_level > 1;
 803                 }
 804                 break;
 805         case CHIP_VEGA10:
 806                 /* XXX Don't know how to get VRAM type yet. */
 807                 adev->mc.vram_type = AMDGPU_VRAM_TYPE_HBM;
 808                 /*
 809                  * To fulfill 4-level page support,
 810                  * vm size is 256TB (48bit), maximum size of Vega10,
 811                  * block size 512 (9bit)
 812                  */
 813                 amdgpu_vm_adjust_size(adev, 256 * 1024, 9, 3, 48);
 814                 break;
 815         default:
 816                 break;
 817         }
 818
 819         /* This interrupt is VMC page fault.*/
 820         r = amdgpu_irq_add_id(adev, AMDGPU_IH_CLIENTID_VMC, 0,
 821                                 &adev->mc.vm_fault);
 822         r = amdgpu_irq_add_id(adev, AMDGPU_IH_CLIENTID_UTCL2, 0,
 823                                 &adev->mc.vm_fault);
 824
 825         if (r)
 826                 return r;
 827
 828         /* Set the internal MC address mask
 829          * This is the max address of the GPU's
 830          * internal address space.
 831          */
 832         adev->mc.mc_mask = 0xffffffffffffULL; /* 48 bit MC */
 833
 834         /*
 835          * It needs to reserve 8M stolen memory for vega10
 836          * TODO: Figure out how to avoid that...
 837          */
 838         adev->mc.stolen_size = 8 * 1024 * 1024;
 839
 840         /* set DMA mask + need_dma32 flags.
 841          * PCIE - can handle 44-bits.
 842          * IGP - can handle 44-bits
 843          * PCI - dma32 for legacy pci gart, 44 bits on vega10
 844          */
 845         adev->need_dma32 = false;
 846         dma_bits = adev->need_dma32 ? 32 : 44;
 847         r = pci_set_dma_mask(adev->pdev, DMA_BIT_MASK(dma_bits));
 848         if (r) {
 849                 adev->need_dma32 = true;
 850                 dma_bits = 32;
 851                 printk(KERN_WARNING "amdgpu: No suitable DMA available.\n");
 852         }
 853         r = pci_set_consistent_dma_mask(adev->pdev, DMA_BIT_MASK(dma_bits));
 854         if (r) {
 855                 pci_set_consistent_dma_mask(adev->pdev, DMA_BIT_MASK(32));
 856                 printk(KERN_WARNING "amdgpu: No coherent DMA available.\n");
 857         }
 858
 859         r = gmc_v9_0_mc_init(adev);
 860         if (r)
 861                 return r;
 862
 863         /* Memory manager */
 864         r = amdgpu_bo_init(adev);
 865         if (r)
 866                 return r;
 867
 868         r = gmc_v9_0_gart_init(adev);
 869         if (r)
 870                 return r;
 871
 872         /*
 873          * number of VMs
 874          * VMID 0 is reserved for System
 875          * amdgpu graphics/compute will use VMIDs 1-7
 876          * amdkfd will use VMIDs 8-15
 877          */
 878         adev->vm_manager.id_mgr[AMDGPU_GFXHUB].num_ids = AMDGPU_NUM_OF_VMIDS;
 879         adev->vm_manager.id_mgr[AMDGPU_MMHUB].num_ids = AMDGPU_NUM_OF_VMIDS;
 880
 881         amdgpu_vm_manager_init(adev);
 882
 883         return 0;
 884 }
 885
 886 /**
 887  * gmc_v9_0_gart_fini - vm fini callback
 888  *
 889  * @adev: amdgpu_device pointer
 890  *
 891  * Tears down the driver GART/VM setup (CIK).
 892  */
 893 static void gmc_v9_0_gart_fini(struct amdgpu_device *adev)
 894 {
 895         amdgpu_gart_table_vram_free(adev);
 896         amdgpu_gart_fini(adev);
 897 }
 898
 899 static int gmc_v9_0_sw_fini(void *handle)
 900 {
 901         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 902
 903         amdgpu_gem_force_release(adev);
 904         amdgpu_vm_manager_fini(adev);
 905         gmc_v9_0_gart_fini(adev);
 906         amdgpu_bo_fini(adev);
 907
 908         return 0;
 909 }
 910
 911 static void gmc_v9_0_init_golden_registers(struct amdgpu_device *adev)
 912 {
 913
 914         switch (adev->asic_type) {
 915         case CHIP_VEGA10:
 916                 soc15_program_register_sequence(adev,
 917                                                 golden_settings_mmhub_1_0_0,
 918                                                 ARRAY_SIZE(golden_settings_mmhub_1_0_0));
 919                 soc15_program_register_sequence(adev,
 920                                                 golden_settings_athub_1_0_0,
 921                                                 ARRAY_SIZE(golden_settings_athub_1_0_0));
 922                 break;
 923         case CHIP_RAVEN:
 924                 soc15_program_register_sequence(adev,
 925                                                 golden_settings_athub_1_0_0,
 926                                                 ARRAY_SIZE(golden_settings_athub_1_0_0));
 927                 break;
 928         default:
 929                 break;
 930         }
 931 }
 932
 933 /**
 934  * gmc_v9_0_gart_enable - gart enable
 935  *
 936  * @adev: amdgpu_device pointer
 937  */
 938 static int gmc_v9_0_gart_enable(struct amdgpu_device *adev)
 939 {
 940         int r;
 941         bool value;
 942         u32 tmp;
 943
 944         amdgpu_device_program_register_sequence(adev,
 945                                                 golden_settings_vega10_hdp,
 946                                                 ARRAY_SIZE(golden_settings_vega10_hdp));
 947
 948         if (adev->gart.robj == NULL) {
 949                 dev_err(adev->dev, "No VRAM object for PCIE GART.\n");
 950                 return -EINVAL;
 951         }
 952         r = amdgpu_gart_table_vram_pin(adev);
 953         if (r)
 954                 return r;
 955
 956         switch (adev->asic_type) {
 957         case CHIP_RAVEN:
 958                 mmhub_v1_0_initialize_power_gating(adev);
 959                 mmhub_v1_0_update_power_gating(adev, true);
 960                 break;
 961         default:
 962                 break;
 963         }
 964
 965         r = gfxhub_v1_0_gart_enable(adev);
 966         if (r)
 967                 return r;
 968
 969         r = mmhub_v1_0_gart_enable(adev);
 970         if (r)
 971                 return r;
 972
 973         WREG32_FIELD15(HDP, 0, HDP_MISC_CNTL, FLUSH_INVALIDATE_CACHE, 1);
 974
 975         tmp = RREG32_SOC15(HDP, 0, mmHDP_HOST_PATH_CNTL);
 976         WREG32_SOC15(HDP, 0, mmHDP_HOST_PATH_CNTL, tmp);
 977
 978         /* After HDP is initialized, flush HDP.*/
 979         adev->nbio_funcs->hdp_flush(adev);
 980
 981         if (amdgpu_vm_fault_stop == AMDGPU_VM_FAULT_STOP_ALWAYS)
 982                 value = false;
 983         else
 984                 value = true;
 985
 986         gfxhub_v1_0_set_fault_enable_default(adev, value);
 987         mmhub_v1_0_set_fault_enable_default(adev, value);
 988         gmc_v9_0_gart_flush_gpu_tlb(adev, 0);
 989
 990         DRM_INFO("PCIE GART of %uM enabled (table at 0x%016llX).\n",
 991                  (unsigned)(adev->mc.gart_size >> 20),
 992                  (unsigned long long)adev->gart.table_addr);
 993         adev->gart.ready = true;
 994         return 0;
 995 }
 996
 997 static int gmc_v9_0_hw_init(void *handle)
 998 {
 999         int r;
1000         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1001
1002         /* The sequence of these two function calls matters.*/
1003         gmc_v9_0_init_golden_registers(adev);
1004
1005         if (adev->mode_info.num_crtc) {
1006                 /* Lockout access through VGA aperture*/
1007                 WREG32_FIELD15(DCE, 0, VGA_HDP_CONTROL, VGA_MEMORY_DISABLE, 1);
1008
1009                 /* disable VGA render */
1010                 WREG32_FIELD15(DCE, 0, VGA_RENDER_CONTROL, VGA_VSTATUS_CNTL, 0);
1011         }
1012
1013         r = gmc_v9_0_gart_enable(adev);
1014
1015         return r;
1016 }
1017
1018 /**
1019  * gmc_v9_0_gart_disable - gart disable
1020  *
1021  * @adev: amdgpu_device pointer
1022  *
1023  * This disables all VM page table.
1024  */
1025 static void gmc_v9_0_gart_disable(struct amdgpu_device *adev)
1026 {
1027         gfxhub_v1_0_gart_disable(adev);
1028         mmhub_v1_0_gart_disable(adev);
1029         amdgpu_gart_table_vram_unpin(adev);
1030 }
1031
1032 static int gmc_v9_0_hw_fini(void *handle)
1033 {
1034         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1035
1036         if (amdgpu_sriov_vf(adev)) {
1037                 /* full access mode, so don't touch any GMC register */
1038                 DRM_DEBUG("For SRIOV client, shouldn't do anything.\n");
1039                 return 0;
1040         }
1041
1042         amdgpu_irq_put(adev, &adev->mc.vm_fault, 0);
1043         gmc_v9_0_gart_disable(adev);
1044
1045         return 0;
1046 }
1047
1048 static int gmc_v9_0_suspend(void *handle)
1049 {
1050         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1051
1052         return gmc_v9_0_hw_fini(adev);
1053 }
1054
1055 static int gmc_v9_0_resume(void *handle)
1056 {
1057         int r;
1058         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1059
1060         r = gmc_v9_0_hw_init(adev);
1061         if (r)
1062                 return r;
1063
1064         amdgpu_vmid_reset_all(adev);
1065
1066         return 0;
1067 }
1068
1069 static bool gmc_v9_0_is_idle(void *handle)
1070 {
1071         /* MC is always ready in GMC v9.*/
1072         return true;
1073 }
1074
1075 static int gmc_v9_0_wait_for_idle(void *handle)
1076 {
1077         /* There is no need to wait for MC idle in GMC v9.*/
1078         return 0;
1079 }
1080
1081 static int gmc_v9_0_soft_reset(void *handle)
1082 {
1083         /* XXX for emulation.*/
1084         return 0;
1085 }
1086
1087 static int gmc_v9_0_set_clockgating_state(void *handle,
1088                                         enum amd_clockgating_state state)
1089 {
1090         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1091
1092         return mmhub_v1_0_set_clockgating(adev, state);
1093 }
1094
1095 static void gmc_v9_0_get_clockgating_state(void *handle, u32 *flags)
1096 {
1097         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1098
1099         mmhub_v1_0_get_clockgating(adev, flags);
1100 }
1101
1102 static int gmc_v9_0_set_powergating_state(void *handle,
1103                                         enum amd_powergating_state state)
1104 {
1105         return 0;
1106 }
1107
1108 const struct amd_ip_funcs gmc_v9_0_ip_funcs = {
1109         .name = "gmc_v9_0",
1110         .early_init = gmc_v9_0_early_init,
1111         .late_init = gmc_v9_0_late_init,
1112         .sw_init = gmc_v9_0_sw_init,
1113         .sw_fini = gmc_v9_0_sw_fini,
1114         .hw_init = gmc_v9_0_hw_init,
1115         .hw_fini = gmc_v9_0_hw_fini,
1116         .suspend = gmc_v9_0_suspend,
1117         .resume = gmc_v9_0_resume,
1118         .is_idle = gmc_v9_0_is_idle,
1119         .wait_for_idle = gmc_v9_0_wait_for_idle,
1120         .soft_reset = gmc_v9_0_soft_reset,
1121         .set_clockgating_state = gmc_v9_0_set_clockgating_state,
1122         .set_powergating_state = gmc_v9_0_set_powergating_state,
1123         .get_clockgating_state = gmc_v9_0_get_clockgating_state,
1124 };
1125
1126 const struct amdgpu_ip_block_version gmc_v9_0_ip_block =
1127 {
1128         .type = AMD_IP_BLOCK_TYPE_GMC,
1129         .major = 9,
1130         .minor = 0,
1131         .rev = 0,
1132         .funcs = &gmc_v9_0_ip_funcs,
1133 };