drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c

   1 /*
   2  * Copyright 2021 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 <linux/pci.h>
  25 #include "amdgpu.h"
  26 #include "amdgpu_atomfirmware.h"
  27 #include "gmc_v11_0.h"
  28 #include "umc_v8_7.h"
  29 #include "athub/athub_3_0_0_sh_mask.h"
  30 #include "athub/athub_3_0_0_offset.h"
  31 #include "oss/osssys_6_0_0_offset.h"
  32 #include "ivsrcid/vmc/irqsrcs_vmc_1_0.h"
  33 #include "navi10_enum.h"
  34 #include "soc15.h"
  35 #include "soc15d.h"
  36 #include "soc15_common.h"
  37 #include "nbio_v4_3.h"
  38 #include "gfxhub_v3_0.h"
  39 #include "mmhub_v3_0.h"
  40 #include "mmhub_v3_0_2.h"
  41 #include "athub_v3_0.h"
  42
  43
  44 static int gmc_v11_0_ecc_interrupt_state(struct amdgpu_device *adev,
  45                                          struct amdgpu_irq_src *src,
  46                                          unsigned type,
  47                                          enum amdgpu_interrupt_state state)
  48 {
  49         return 0;
  50 }
  51
  52 static int
  53 gmc_v11_0_vm_fault_interrupt_state(struct amdgpu_device *adev,
  54                                    struct amdgpu_irq_src *src, unsigned type,
  55                                    enum amdgpu_interrupt_state state)
  56 {
  57         switch (state) {
  58         case AMDGPU_IRQ_STATE_DISABLE:
  59                 /* MM HUB */
  60                 amdgpu_gmc_set_vm_fault_masks(adev, AMDGPU_MMHUB_0, false);
  61                 /* GFX HUB */
  62                 amdgpu_gmc_set_vm_fault_masks(adev, AMDGPU_GFXHUB_0, false);
  63                 break;
  64         case AMDGPU_IRQ_STATE_ENABLE:
  65                 /* MM HUB */
  66                 amdgpu_gmc_set_vm_fault_masks(adev, AMDGPU_MMHUB_0, true);
  67                 /* GFX HUB */
  68                 amdgpu_gmc_set_vm_fault_masks(adev, AMDGPU_GFXHUB_0, true);
  69                 break;
  70         default:
  71                 break;
  72         }
  73
  74         return 0;
  75 }
  76
  77 static int gmc_v11_0_process_interrupt(struct amdgpu_device *adev,
  78                                        struct amdgpu_irq_src *source,
  79                                        struct amdgpu_iv_entry *entry)
  80 {
  81         struct amdgpu_vmhub *hub = &adev->vmhub[entry->vmid_src];
  82         uint32_t status = 0;
  83         u64 addr;
  84
  85         addr = (u64)entry->src_data[0] << 12;
  86         addr |= ((u64)entry->src_data[1] & 0xf) << 44;
  87
  88         if (!amdgpu_sriov_vf(adev)) {
  89                 /*
  90                  * Issue a dummy read to wait for the status register to
  91                  * be updated to avoid reading an incorrect value due to
  92                  * the new fast GRBM interface.
  93                  */
  94                 if (entry->vmid_src == AMDGPU_GFXHUB_0)
  95                         RREG32(hub->vm_l2_pro_fault_status);
  96
  97                 status = RREG32(hub->vm_l2_pro_fault_status);
  98                 WREG32_P(hub->vm_l2_pro_fault_cntl, 1, ~1);
  99         }
 100
 101         if (printk_ratelimit()) {
 102                 struct amdgpu_task_info task_info;
 103
 104                 memset(&task_info, 0, sizeof(struct amdgpu_task_info));
 105                 amdgpu_vm_get_task_info(adev, entry->pasid, &task_info);
 106
 107                 dev_err(adev->dev,
 108                         "[%s] page fault (src_id:%u ring:%u vmid:%u pasid:%u, "
 109                         "for process %s pid %d thread %s pid %d)\n",
 110                         entry->vmid_src ? "mmhub" : "gfxhub",
 111                         entry->src_id, entry->ring_id, entry->vmid,
 112                         entry->pasid, task_info.process_name, task_info.tgid,
 113                         task_info.task_name, task_info.pid);
 114                 dev_err(adev->dev, "  in page starting at address 0x%016llx from client %d\n",
 115                         addr, entry->client_id);
 116                 if (!amdgpu_sriov_vf(adev))
 117                         hub->vmhub_funcs->print_l2_protection_fault_status(adev, status);
 118         }
 119
 120         return 0;
 121 }
 122
 123 static const struct amdgpu_irq_src_funcs gmc_v11_0_irq_funcs = {
 124         .set = gmc_v11_0_vm_fault_interrupt_state,
 125         .process = gmc_v11_0_process_interrupt,
 126 };
 127
 128 static const struct amdgpu_irq_src_funcs gmc_v11_0_ecc_funcs = {
 129         .set = gmc_v11_0_ecc_interrupt_state,
 130         .process = amdgpu_umc_process_ecc_irq,
 131 };
 132
 133 static void gmc_v11_0_set_irq_funcs(struct amdgpu_device *adev)
 134 {
 135         adev->gmc.vm_fault.num_types = 1;
 136         adev->gmc.vm_fault.funcs = &gmc_v11_0_irq_funcs;
 137
 138         if (!amdgpu_sriov_vf(adev)) {
 139                 adev->gmc.ecc_irq.num_types = 1;
 140                 adev->gmc.ecc_irq.funcs = &gmc_v11_0_ecc_funcs;
 141         }
 142 }
 143
 144 /**
 145  * gmc_v11_0_use_invalidate_semaphore - judge whether to use semaphore
 146  *
 147  * @adev: amdgpu_device pointer
 148  * @vmhub: vmhub type
 149  *
 150  */
 151 static bool gmc_v11_0_use_invalidate_semaphore(struct amdgpu_device *adev,
 152                                        uint32_t vmhub)
 153 {
 154         return ((vmhub == AMDGPU_MMHUB_0) &&
 155                 (!amdgpu_sriov_vf(adev)));
 156 }
 157
 158 static bool gmc_v11_0_get_vmid_pasid_mapping_info(
 159                                         struct amdgpu_device *adev,
 160                                         uint8_t vmid, uint16_t *p_pasid)
 161 {
 162         *p_pasid = RREG32(SOC15_REG_OFFSET(OSSSYS, 0, regIH_VMID_0_LUT) + vmid) & 0xffff;
 163
 164         return !!(*p_pasid);
 165 }
 166
 167 /*
 168  * GART
 169  * VMID 0 is the physical GPU addresses as used by the kernel.
 170  * VMIDs 1-15 are used for userspace clients and are handled
 171  * by the amdgpu vm/hsa code.
 172  */
 173
 174 static void gmc_v11_0_flush_vm_hub(struct amdgpu_device *adev, uint32_t vmid,
 175                                    unsigned int vmhub, uint32_t flush_type)
 176 {
 177         bool use_semaphore = gmc_v11_0_use_invalidate_semaphore(adev, vmhub);
 178         struct amdgpu_vmhub *hub = &adev->vmhub[vmhub];
 179         u32 inv_req = hub->vmhub_funcs->get_invalidate_req(vmid, flush_type);
 180         u32 tmp;
 181         /* Use register 17 for GART */
 182         const unsigned eng = 17;
 183         unsigned int i;
 184
 185         spin_lock(&adev->gmc.invalidate_lock);
 186         /*
 187          * It may lose gpuvm invalidate acknowldege state across power-gating
 188          * off cycle, add semaphore acquire before invalidation and semaphore
 189          * release after invalidation to avoid entering power gated state
 190          * to WA the Issue
 191          */
 192
 193         /* TODO: It needs to continue working on debugging with semaphore for GFXHUB as well. */
 194         if (use_semaphore) {
 195                 for (i = 0; i < adev->usec_timeout; i++) {
 196                         /* a read return value of 1 means semaphore acuqire */
 197                         tmp = RREG32_NO_KIQ(hub->vm_inv_eng0_sem +
 198                                             hub->eng_distance * eng);
 199                         if (tmp & 0x1)
 200                                 break;
 201                         udelay(1);
 202                 }
 203
 204                 if (i >= adev->usec_timeout)
 205                         DRM_ERROR("Timeout waiting for sem acquire in VM flush!\n");
 206         }
 207
 208         WREG32_NO_KIQ(hub->vm_inv_eng0_req + hub->eng_distance * eng, inv_req);
 209
 210         /* Wait for ACK with a delay.*/
 211         for (i = 0; i < adev->usec_timeout; i++) {
 212                 tmp = RREG32_NO_KIQ(hub->vm_inv_eng0_ack +
 213                                     hub->eng_distance * eng);
 214                 tmp &= 1 << vmid;
 215                 if (tmp)
 216                         break;
 217
 218                 udelay(1);
 219         }
 220
 221         /* TODO: It needs to continue working on debugging with semaphore for GFXHUB as well. */
 222         if (use_semaphore)
 223                 /*
 224                  * add semaphore release after invalidation,
 225                  * write with 0 means semaphore release
 226                  */
 227                 WREG32_NO_KIQ(hub->vm_inv_eng0_sem +
 228                               hub->eng_distance * eng, 0);
 229
 230         /* Issue additional private vm invalidation to MMHUB */
 231         if ((vmhub != AMDGPU_GFXHUB_0) &&
 232             (hub->vm_l2_bank_select_reserved_cid2)) {
 233                 inv_req = RREG32_NO_KIQ(hub->vm_l2_bank_select_reserved_cid2);
 234                 /* bit 25: RSERVED_CACHE_PRIVATE_INVALIDATION */
 235                 inv_req |= (1 << 25);
 236                 /* Issue private invalidation */
 237                 WREG32_NO_KIQ(hub->vm_l2_bank_select_reserved_cid2, inv_req);
 238                 /* Read back to ensure invalidation is done*/
 239                 RREG32_NO_KIQ(hub->vm_l2_bank_select_reserved_cid2);
 240         }
 241
 242         spin_unlock(&adev->gmc.invalidate_lock);
 243
 244         if (i < adev->usec_timeout)
 245                 return;
 246
 247         DRM_ERROR("Timeout waiting for VM flush ACK!\n");
 248 }
 249
 250 /**
 251  * gmc_v11_0_flush_gpu_tlb - gart tlb flush callback
 252  *
 253  * @adev: amdgpu_device pointer
 254  * @vmid: vm instance to flush
 255  *
 256  * Flush the TLB for the requested page table.
 257  */
 258 static void gmc_v11_0_flush_gpu_tlb(struct amdgpu_device *adev, uint32_t vmid,
 259                                         uint32_t vmhub, uint32_t flush_type)
 260 {
 261         if ((vmhub == AMDGPU_GFXHUB_0) && !adev->gfx.is_poweron)
 262                 return;
 263
 264         /* flush hdp cache */
 265         adev->hdp.funcs->flush_hdp(adev, NULL);
 266
 267         /* For SRIOV run time, driver shouldn't access the register through MMIO
 268          * Directly use kiq to do the vm invalidation instead
 269          */
 270         if (adev->gfx.kiq.ring.sched.ready && !adev->enable_mes &&
 271             (amdgpu_sriov_runtime(adev) || !amdgpu_sriov_vf(adev))) {
 272                 struct amdgpu_vmhub *hub = &adev->vmhub[vmhub];
 273                 const unsigned eng = 17;
 274                 u32 inv_req = hub->vmhub_funcs->get_invalidate_req(vmid, flush_type);
 275                 u32 req = hub->vm_inv_eng0_req + hub->eng_distance * eng;
 276                 u32 ack = hub->vm_inv_eng0_ack + hub->eng_distance * eng;
 277
 278                 amdgpu_virt_kiq_reg_write_reg_wait(adev, req, ack, inv_req,
 279                                 1 << vmid);
 280                 return;
 281         }
 282
 283         mutex_lock(&adev->mman.gtt_window_lock);
 284         gmc_v11_0_flush_vm_hub(adev, vmid, vmhub, 0);
 285         mutex_unlock(&adev->mman.gtt_window_lock);
 286         return;
 287 }
 288
 289 /**
 290  * gmc_v11_0_flush_gpu_tlb_pasid - tlb flush via pasid
 291  *
 292  * @adev: amdgpu_device pointer
 293  * @pasid: pasid to be flush
 294  *
 295  * Flush the TLB for the requested pasid.
 296  */
 297 static int gmc_v11_0_flush_gpu_tlb_pasid(struct amdgpu_device *adev,
 298                                         uint16_t pasid, uint32_t flush_type,
 299                                         bool all_hub)
 300 {
 301         int vmid, i;
 302         signed long r;
 303         uint32_t seq;
 304         uint16_t queried_pasid;
 305         bool ret;
 306         struct amdgpu_ring *ring = &adev->gfx.kiq.ring;
 307         struct amdgpu_kiq *kiq = &adev->gfx.kiq;
 308
 309         if (amdgpu_emu_mode == 0 && ring->sched.ready) {
 310                 spin_lock(&adev->gfx.kiq.ring_lock);
 311                 /* 2 dwords flush + 8 dwords fence */
 312                 amdgpu_ring_alloc(ring, kiq->pmf->invalidate_tlbs_size + 8);
 313                 kiq->pmf->kiq_invalidate_tlbs(ring,
 314                                         pasid, flush_type, all_hub);
 315                 r = amdgpu_fence_emit_polling(ring, &seq, MAX_KIQ_REG_WAIT);
 316                 if (r) {
 317                         amdgpu_ring_undo(ring);
 318                         spin_unlock(&adev->gfx.kiq.ring_lock);
 319                         return -ETIME;
 320                 }
 321
 322                 amdgpu_ring_commit(ring);
 323                 spin_unlock(&adev->gfx.kiq.ring_lock);
 324                 r = amdgpu_fence_wait_polling(ring, seq, adev->usec_timeout);
 325                 if (r < 1) {
 326                         dev_err(adev->dev, "wait for kiq fence error: %ld.\n", r);
 327                         return -ETIME;
 328                 }
 329
 330                 return 0;
 331         }
 332
 333         for (vmid = 1; vmid < 16; vmid++) {
 334
 335                 ret = gmc_v11_0_get_vmid_pasid_mapping_info(adev, vmid,
 336                                 &queried_pasid);
 337                 if (ret && queried_pasid == pasid) {
 338                         if (all_hub) {
 339                                 for (i = 0; i < adev->num_vmhubs; i++)
 340                                         gmc_v11_0_flush_gpu_tlb(adev, vmid,
 341                                                         i, flush_type);
 342                         } else {
 343                                 gmc_v11_0_flush_gpu_tlb(adev, vmid,
 344                                                 AMDGPU_GFXHUB_0, flush_type);
 345                         }
 346                         break;
 347                 }
 348         }
 349
 350         return 0;
 351 }
 352
 353 static uint64_t gmc_v11_0_emit_flush_gpu_tlb(struct amdgpu_ring *ring,
 354                                              unsigned vmid, uint64_t pd_addr)
 355 {
 356         bool use_semaphore = gmc_v11_0_use_invalidate_semaphore(ring->adev, ring->funcs->vmhub);
 357         struct amdgpu_vmhub *hub = &ring->adev->vmhub[ring->funcs->vmhub];
 358         uint32_t req = hub->vmhub_funcs->get_invalidate_req(vmid, 0);
 359         unsigned eng = ring->vm_inv_eng;
 360
 361         /*
 362          * It may lose gpuvm invalidate acknowldege state across power-gating
 363          * off cycle, add semaphore acquire before invalidation and semaphore
 364          * release after invalidation to avoid entering power gated state
 365          * to WA the Issue
 366          */
 367
 368         /* TODO: It needs to continue working on debugging with semaphore for GFXHUB as well. */
 369         if (use_semaphore)
 370                 /* a read return value of 1 means semaphore acuqire */
 371                 amdgpu_ring_emit_reg_wait(ring,
 372                                           hub->vm_inv_eng0_sem +
 373                                           hub->eng_distance * eng, 0x1, 0x1);
 374
 375         amdgpu_ring_emit_wreg(ring, hub->ctx0_ptb_addr_lo32 +
 376                               (hub->ctx_addr_distance * vmid),
 377                               lower_32_bits(pd_addr));
 378
 379         amdgpu_ring_emit_wreg(ring, hub->ctx0_ptb_addr_hi32 +
 380                               (hub->ctx_addr_distance * vmid),
 381                               upper_32_bits(pd_addr));
 382
 383         amdgpu_ring_emit_reg_write_reg_wait(ring, hub->vm_inv_eng0_req +
 384                                             hub->eng_distance * eng,
 385                                             hub->vm_inv_eng0_ack +
 386                                             hub->eng_distance * eng,
 387                                             req, 1 << vmid);
 388
 389         /* TODO: It needs to continue working on debugging with semaphore for GFXHUB as well. */
 390         if (use_semaphore)
 391                 /*
 392                  * add semaphore release after invalidation,
 393                  * write with 0 means semaphore release
 394                  */
 395                 amdgpu_ring_emit_wreg(ring, hub->vm_inv_eng0_sem +
 396                                       hub->eng_distance * eng, 0);
 397
 398         return pd_addr;
 399 }
 400
 401 static void gmc_v11_0_emit_pasid_mapping(struct amdgpu_ring *ring, unsigned vmid,
 402                                          unsigned pasid)
 403 {
 404         struct amdgpu_device *adev = ring->adev;
 405         uint32_t reg;
 406
 407         /* MES fw manages IH_VMID_x_LUT updating */
 408         if (ring->is_mes_queue)
 409                 return;
 410
 411         if (ring->funcs->vmhub == AMDGPU_GFXHUB_0)
 412                 reg = SOC15_REG_OFFSET(OSSSYS, 0, regIH_VMID_0_LUT) + vmid;
 413         else
 414                 reg = SOC15_REG_OFFSET(OSSSYS, 0, regIH_VMID_0_LUT_MM) + vmid;
 415
 416         amdgpu_ring_emit_wreg(ring, reg, pasid);
 417 }
 418
 419 /*
 420  * PTE format:
 421  * 63:59 reserved
 422  * 58:57 reserved
 423  * 56 F
 424  * 55 L
 425  * 54 reserved
 426  * 53:52 SW
 427  * 51 T
 428  * 50:48 mtype
 429  * 47:12 4k physical page base address
 430  * 11:7 fragment
 431  * 6 write
 432  * 5 read
 433  * 4 exe
 434  * 3 Z
 435  * 2 snooped
 436  * 1 system
 437  * 0 valid
 438  *
 439  * PDE format:
 440  * 63:59 block fragment size
 441  * 58:55 reserved
 442  * 54 P
 443  * 53:48 reserved
 444  * 47:6 physical base address of PD or PTE
 445  * 5:3 reserved
 446  * 2 C
 447  * 1 system
 448  * 0 valid
 449  */
 450
 451 static uint64_t gmc_v11_0_map_mtype(struct amdgpu_device *adev, uint32_t flags)
 452 {
 453         switch (flags) {
 454         case AMDGPU_VM_MTYPE_DEFAULT:
 455                 return AMDGPU_PTE_MTYPE_NV10(MTYPE_NC);
 456         case AMDGPU_VM_MTYPE_NC:
 457                 return AMDGPU_PTE_MTYPE_NV10(MTYPE_NC);
 458         case AMDGPU_VM_MTYPE_WC:
 459                 return AMDGPU_PTE_MTYPE_NV10(MTYPE_WC);
 460         case AMDGPU_VM_MTYPE_CC:
 461                 return AMDGPU_PTE_MTYPE_NV10(MTYPE_CC);
 462         case AMDGPU_VM_MTYPE_UC:
 463                 return AMDGPU_PTE_MTYPE_NV10(MTYPE_UC);
 464         default:
 465                 return AMDGPU_PTE_MTYPE_NV10(MTYPE_NC);
 466         }
 467 }
 468
 469 static void gmc_v11_0_get_vm_pde(struct amdgpu_device *adev, int level,
 470                                  uint64_t *addr, uint64_t *flags)
 471 {
 472         if (!(*flags & AMDGPU_PDE_PTE) && !(*flags & AMDGPU_PTE_SYSTEM))
 473                 *addr = adev->vm_manager.vram_base_offset + *addr -
 474                         adev->gmc.vram_start;
 475         BUG_ON(*addr & 0xFFFF00000000003FULL);
 476
 477         if (!adev->gmc.translate_further)
 478                 return;
 479
 480         if (level == AMDGPU_VM_PDB1) {
 481                 /* Set the block fragment size */
 482                 if (!(*flags & AMDGPU_PDE_PTE))
 483                         *flags |= AMDGPU_PDE_BFS(0x9);
 484
 485         } else if (level == AMDGPU_VM_PDB0) {
 486                 if (*flags & AMDGPU_PDE_PTE)
 487                         *flags &= ~AMDGPU_PDE_PTE;
 488                 else
 489                         *flags |= AMDGPU_PTE_TF;
 490         }
 491 }
 492
 493 static void gmc_v11_0_get_vm_pte(struct amdgpu_device *adev,
 494                                  struct amdgpu_bo_va_mapping *mapping,
 495                                  uint64_t *flags)
 496 {
 497         *flags &= ~AMDGPU_PTE_EXECUTABLE;
 498         *flags |= mapping->flags & AMDGPU_PTE_EXECUTABLE;
 499
 500         *flags &= ~AMDGPU_PTE_MTYPE_NV10_MASK;
 501         *flags |= (mapping->flags & AMDGPU_PTE_MTYPE_NV10_MASK);
 502
 503         if (mapping->flags & AMDGPU_PTE_PRT) {
 504                 *flags |= AMDGPU_PTE_PRT;
 505                 *flags |= AMDGPU_PTE_SNOOPED;
 506                 *flags |= AMDGPU_PTE_LOG;
 507                 *flags |= AMDGPU_PTE_SYSTEM;
 508                 *flags &= ~AMDGPU_PTE_VALID;
 509         }
 510 }
 511
 512 static unsigned gmc_v11_0_get_vbios_fb_size(struct amdgpu_device *adev)
 513 {
 514         return 0;
 515 }
 516
 517 static const struct amdgpu_gmc_funcs gmc_v11_0_gmc_funcs = {
 518         .flush_gpu_tlb = gmc_v11_0_flush_gpu_tlb,
 519         .flush_gpu_tlb_pasid = gmc_v11_0_flush_gpu_tlb_pasid,
 520         .emit_flush_gpu_tlb = gmc_v11_0_emit_flush_gpu_tlb,
 521         .emit_pasid_mapping = gmc_v11_0_emit_pasid_mapping,
 522         .map_mtype = gmc_v11_0_map_mtype,
 523         .get_vm_pde = gmc_v11_0_get_vm_pde,
 524         .get_vm_pte = gmc_v11_0_get_vm_pte,
 525         .get_vbios_fb_size = gmc_v11_0_get_vbios_fb_size,
 526 };
 527
 528 static void gmc_v11_0_set_gmc_funcs(struct amdgpu_device *adev)
 529 {
 530         adev->gmc.gmc_funcs = &gmc_v11_0_gmc_funcs;
 531 }
 532
 533 static void gmc_v11_0_set_umc_funcs(struct amdgpu_device *adev)
 534 {
 535         switch (adev->ip_versions[UMC_HWIP][0]) {
 536         case IP_VERSION(8, 10, 0):
 537         case IP_VERSION(8, 11, 0):
 538                 break;
 539         default:
 540                 break;
 541         }
 542 }
 543
 544
 545 static void gmc_v11_0_set_mmhub_funcs(struct amdgpu_device *adev)
 546 {
 547         switch (adev->ip_versions[MMHUB_HWIP][0]) {
 548         case IP_VERSION(3, 0, 2):
 549                 adev->mmhub.funcs = &mmhub_v3_0_2_funcs;
 550                 break;
 551         default:
 552                 adev->mmhub.funcs = &mmhub_v3_0_funcs;
 553                 break;
 554         }
 555 }
 556
 557 static void gmc_v11_0_set_gfxhub_funcs(struct amdgpu_device *adev)
 558 {
 559         adev->gfxhub.funcs = &gfxhub_v3_0_funcs;
 560 }
 561
 562 static int gmc_v11_0_early_init(void *handle)
 563 {
 564         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 565
 566         gmc_v11_0_set_gfxhub_funcs(adev);
 567         gmc_v11_0_set_mmhub_funcs(adev);
 568         gmc_v11_0_set_gmc_funcs(adev);
 569         gmc_v11_0_set_irq_funcs(adev);
 570         gmc_v11_0_set_umc_funcs(adev);
 571
 572         adev->gmc.shared_aperture_start = 0x2000000000000000ULL;
 573         adev->gmc.shared_aperture_end =
 574                 adev->gmc.shared_aperture_start + (4ULL << 30) - 1;
 575         adev->gmc.private_aperture_start = 0x1000000000000000ULL;
 576         adev->gmc.private_aperture_end =
 577                 adev->gmc.private_aperture_start + (4ULL << 30) - 1;
 578
 579         return 0;
 580 }
 581
 582 static int gmc_v11_0_late_init(void *handle)
 583 {
 584         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 585         int r;
 586
 587         r = amdgpu_gmc_allocate_vm_inv_eng(adev);
 588         if (r)
 589                 return r;
 590
 591         r = amdgpu_gmc_ras_late_init(adev);
 592         if (r)
 593                 return r;
 594
 595         return amdgpu_irq_get(adev, &adev->gmc.vm_fault, 0);
 596 }
 597
 598 static void gmc_v11_0_vram_gtt_location(struct amdgpu_device *adev,
 599                                         struct amdgpu_gmc *mc)
 600 {
 601         u64 base = 0;
 602
 603         base = adev->mmhub.funcs->get_fb_location(adev);
 604
 605         amdgpu_gmc_vram_location(adev, &adev->gmc, base);
 606         amdgpu_gmc_gart_location(adev, mc);
 607
 608         /* base offset of vram pages */
 609         adev->vm_manager.vram_base_offset = adev->mmhub.funcs->get_mc_fb_offset(adev);
 610 }
 611
 612 /**
 613  * gmc_v11_0_mc_init - initialize the memory controller driver params
 614  *
 615  * @adev: amdgpu_device pointer
 616  *
 617  * Look up the amount of vram, vram width, and decide how to place
 618  * vram and gart within the GPU's physical address space.
 619  * Returns 0 for success.
 620  */
 621 static int gmc_v11_0_mc_init(struct amdgpu_device *adev)
 622 {
 623         int r;
 624
 625         /* size in MB on si */
 626         adev->gmc.mc_vram_size =
 627                 adev->nbio.funcs->get_memsize(adev) * 1024ULL * 1024ULL;
 628         adev->gmc.real_vram_size = adev->gmc.mc_vram_size;
 629
 630         if (!(adev->flags & AMD_IS_APU)) {
 631                 r = amdgpu_device_resize_fb_bar(adev);
 632                 if (r)
 633                         return r;
 634         }
 635         adev->gmc.aper_base = pci_resource_start(adev->pdev, 0);
 636         adev->gmc.aper_size = pci_resource_len(adev->pdev, 0);
 637
 638         /* In case the PCI BAR is larger than the actual amount of vram */
 639         adev->gmc.visible_vram_size = adev->gmc.aper_size;
 640         if (adev->gmc.visible_vram_size > adev->gmc.real_vram_size)
 641                 adev->gmc.visible_vram_size = adev->gmc.real_vram_size;
 642
 643         /* set the gart size */
 644         if (amdgpu_gart_size == -1) {
 645                 adev->gmc.gart_size = 512ULL << 20;
 646         } else
 647                 adev->gmc.gart_size = (u64)amdgpu_gart_size << 20;
 648
 649         gmc_v11_0_vram_gtt_location(adev, &adev->gmc);
 650
 651         return 0;
 652 }
 653
 654 static int gmc_v11_0_gart_init(struct amdgpu_device *adev)
 655 {
 656         int r;
 657
 658         if (adev->gart.bo) {
 659                 WARN(1, "PCIE GART already initialized\n");
 660                 return 0;
 661         }
 662
 663         /* Initialize common gart structure */
 664         r = amdgpu_gart_init(adev);
 665         if (r)
 666                 return r;
 667
 668         adev->gart.table_size = adev->gart.num_gpu_pages * 8;
 669         adev->gart.gart_pte_flags = AMDGPU_PTE_MTYPE_NV10(MTYPE_UC) |
 670                                  AMDGPU_PTE_EXECUTABLE;
 671
 672         return amdgpu_gart_table_vram_alloc(adev);
 673 }
 674
 675 static int gmc_v11_0_sw_init(void *handle)
 676 {
 677         int r, vram_width = 0, vram_type = 0, vram_vendor = 0;
 678         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 679
 680         adev->mmhub.funcs->init(adev);
 681
 682         spin_lock_init(&adev->gmc.invalidate_lock);
 683
 684         r = amdgpu_atomfirmware_get_vram_info(adev,
 685                                               &vram_width, &vram_type, &vram_vendor);
 686         adev->gmc.vram_width = vram_width;
 687
 688         adev->gmc.vram_type = vram_type;
 689         adev->gmc.vram_vendor = vram_vendor;
 690
 691         switch (adev->ip_versions[GC_HWIP][0]) {
 692         case IP_VERSION(11, 0, 0):
 693         case IP_VERSION(11, 0, 1):
 694         case IP_VERSION(11, 0, 2):
 695                 adev->num_vmhubs = 2;
 696                 /*
 697                  * To fulfill 4-level page support,
 698                  * vm size is 256TB (48bit), maximum size,
 699                  * block size 512 (9bit)
 700                  */
 701                 amdgpu_vm_adjust_size(adev, 256 * 1024, 9, 3, 48);
 702                 break;
 703         default:
 704                 break;
 705         }
 706
 707         /* This interrupt is VMC page fault.*/
 708         r = amdgpu_irq_add_id(adev, SOC21_IH_CLIENTID_VMC,
 709                               VMC_1_0__SRCID__VM_FAULT,
 710                               &adev->gmc.vm_fault);
 711
 712         if (r)
 713                 return r;
 714
 715         r = amdgpu_irq_add_id(adev, SOC21_IH_CLIENTID_GFX,
 716                               UTCL2_1_0__SRCID__FAULT,
 717                               &adev->gmc.vm_fault);
 718         if (r)
 719                 return r;
 720
 721         if (!amdgpu_sriov_vf(adev)) {
 722                 /* interrupt sent to DF. */
 723                 r = amdgpu_irq_add_id(adev, SOC21_IH_CLIENTID_DF, 0,
 724                                       &adev->gmc.ecc_irq);
 725                 if (r)
 726                         return r;
 727         }
 728
 729         /*
 730          * Set the internal MC address mask This is the max address of the GPU's
 731          * internal address space.
 732          */
 733         adev->gmc.mc_mask = 0xffffffffffffULL; /* 48 bit MC */
 734
 735         r = dma_set_mask_and_coherent(adev->dev, DMA_BIT_MASK(44));
 736         if (r) {
 737                 printk(KERN_WARNING "amdgpu: No suitable DMA available.\n");
 738                 return r;
 739         }
 740
 741         r = gmc_v11_0_mc_init(adev);
 742         if (r)
 743                 return r;
 744
 745         amdgpu_gmc_get_vbios_allocations(adev);
 746
 747         /* Memory manager */
 748         r = amdgpu_bo_init(adev);
 749         if (r)
 750                 return r;
 751
 752         r = gmc_v11_0_gart_init(adev);
 753         if (r)
 754                 return r;
 755
 756         /*
 757          * number of VMs
 758          * VMID 0 is reserved for System
 759          * amdgpu graphics/compute will use VMIDs 1-7
 760          * amdkfd will use VMIDs 8-15
 761          */
 762         adev->vm_manager.first_kfd_vmid = 8;
 763
 764         amdgpu_vm_manager_init(adev);
 765
 766         return 0;
 767 }
 768
 769 /**
 770  * gmc_v11_0_gart_fini - vm fini callback
 771  *
 772  * @adev: amdgpu_device pointer
 773  *
 774  * Tears down the driver GART/VM setup (CIK).
 775  */
 776 static void gmc_v11_0_gart_fini(struct amdgpu_device *adev)
 777 {
 778         amdgpu_gart_table_vram_free(adev);
 779 }
 780
 781 static int gmc_v11_0_sw_fini(void *handle)
 782 {
 783         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 784
 785         amdgpu_vm_manager_fini(adev);
 786         gmc_v11_0_gart_fini(adev);
 787         amdgpu_gem_force_release(adev);
 788         amdgpu_bo_fini(adev);
 789
 790         return 0;
 791 }
 792
 793 static void gmc_v11_0_init_golden_registers(struct amdgpu_device *adev)
 794 {
 795 }
 796
 797 /**
 798  * gmc_v11_0_gart_enable - gart enable
 799  *
 800  * @adev: amdgpu_device pointer
 801  */
 802 static int gmc_v11_0_gart_enable(struct amdgpu_device *adev)
 803 {
 804         int r;
 805         bool value;
 806
 807         if (adev->gart.bo == NULL) {
 808                 dev_err(adev->dev, "No VRAM object for PCIE GART.\n");
 809                 return -EINVAL;
 810         }
 811
 812         amdgpu_gtt_mgr_recover(&adev->mman.gtt_mgr);
 813
 814         r = adev->mmhub.funcs->gart_enable(adev);
 815         if (r)
 816                 return r;
 817
 818         /* Flush HDP after it is initialized */
 819         adev->hdp.funcs->flush_hdp(adev, NULL);
 820
 821         value = (amdgpu_vm_fault_stop == AMDGPU_VM_FAULT_STOP_ALWAYS) ?
 822                 false : true;
 823
 824         adev->mmhub.funcs->set_fault_enable_default(adev, value);
 825         gmc_v11_0_flush_gpu_tlb(adev, 0, AMDGPU_MMHUB_0, 0);
 826
 827         DRM_INFO("PCIE GART of %uM enabled (table at 0x%016llX).\n",
 828                  (unsigned)(adev->gmc.gart_size >> 20),
 829                  (unsigned long long)amdgpu_bo_gpu_offset(adev->gart.bo));
 830
 831         return 0;
 832 }
 833
 834 static int gmc_v11_0_hw_init(void *handle)
 835 {
 836         int r;
 837         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 838
 839         /* The sequence of these two function calls matters.*/
 840         gmc_v11_0_init_golden_registers(adev);
 841
 842         r = gmc_v11_0_gart_enable(adev);
 843         if (r)
 844                 return r;
 845
 846         if (adev->umc.funcs && adev->umc.funcs->init_registers)
 847                 adev->umc.funcs->init_registers(adev);
 848
 849         return 0;
 850 }
 851
 852 /**
 853  * gmc_v11_0_gart_disable - gart disable
 854  *
 855  * @adev: amdgpu_device pointer
 856  *
 857  * This disables all VM page table.
 858  */
 859 static void gmc_v11_0_gart_disable(struct amdgpu_device *adev)
 860 {
 861         adev->mmhub.funcs->gart_disable(adev);
 862 }
 863
 864 static int gmc_v11_0_hw_fini(void *handle)
 865 {
 866         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 867
 868         if (amdgpu_sriov_vf(adev)) {
 869                 /* full access mode, so don't touch any GMC register */
 870                 DRM_DEBUG("For SRIOV client, shouldn't do anything.\n");
 871                 return 0;
 872         }
 873
 874         amdgpu_irq_put(adev, &adev->gmc.ecc_irq, 0);
 875         amdgpu_irq_put(adev, &adev->gmc.vm_fault, 0);
 876         gmc_v11_0_gart_disable(adev);
 877
 878         return 0;
 879 }
 880
 881 static int gmc_v11_0_suspend(void *handle)
 882 {
 883         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 884
 885         gmc_v11_0_hw_fini(adev);
 886
 887         return 0;
 888 }
 889
 890 static int gmc_v11_0_resume(void *handle)
 891 {
 892         int r;
 893         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 894
 895         r = gmc_v11_0_hw_init(adev);
 896         if (r)
 897                 return r;
 898
 899         amdgpu_vmid_reset_all(adev);
 900
 901         return 0;
 902 }
 903
 904 static bool gmc_v11_0_is_idle(void *handle)
 905 {
 906         /* MC is always ready in GMC v11.*/
 907         return true;
 908 }
 909
 910 static int gmc_v11_0_wait_for_idle(void *handle)
 911 {
 912         /* There is no need to wait for MC idle in GMC v11.*/
 913         return 0;
 914 }
 915
 916 static int gmc_v11_0_soft_reset(void *handle)
 917 {
 918         return 0;
 919 }
 920
 921 static int gmc_v11_0_set_clockgating_state(void *handle,
 922                                            enum amd_clockgating_state state)
 923 {
 924         int r;
 925         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 926
 927         r = adev->mmhub.funcs->set_clockgating(adev, state);
 928         if (r)
 929                 return r;
 930
 931         return athub_v3_0_set_clockgating(adev, state);
 932 }
 933
 934 static void gmc_v11_0_get_clockgating_state(void *handle, u64 *flags)
 935 {
 936         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 937
 938         adev->mmhub.funcs->get_clockgating(adev, flags);
 939
 940         athub_v3_0_get_clockgating(adev, flags);
 941 }
 942
 943 static int gmc_v11_0_set_powergating_state(void *handle,
 944                                            enum amd_powergating_state state)
 945 {
 946         return 0;
 947 }
 948
 949 const struct amd_ip_funcs gmc_v11_0_ip_funcs = {
 950         .name = "gmc_v11_0",
 951         .early_init = gmc_v11_0_early_init,
 952         .sw_init = gmc_v11_0_sw_init,
 953         .hw_init = gmc_v11_0_hw_init,
 954         .late_init = gmc_v11_0_late_init,
 955         .sw_fini = gmc_v11_0_sw_fini,
 956         .hw_fini = gmc_v11_0_hw_fini,
 957         .suspend = gmc_v11_0_suspend,
 958         .resume = gmc_v11_0_resume,
 959         .is_idle = gmc_v11_0_is_idle,
 960         .wait_for_idle = gmc_v11_0_wait_for_idle,
 961         .soft_reset = gmc_v11_0_soft_reset,
 962         .set_clockgating_state = gmc_v11_0_set_clockgating_state,
 963         .set_powergating_state = gmc_v11_0_set_powergating_state,
 964         .get_clockgating_state = gmc_v11_0_get_clockgating_state,
 965 };
 966
 967 const struct amdgpu_ip_block_version gmc_v11_0_ip_block = {
 968         .type = AMD_IP_BLOCK_TYPE_GMC,
 969         .major = 11,
 970         .minor = 0,
 971         .rev = 0,
 972         .funcs = &gmc_v11_0_ip_funcs,
 973 };