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

   1 /*
   2  * Copyright 2015 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  */
  24 #include <linux/list.h>
  25 #include <linux/slab.h>
  26 #include <linux/pci.h>
  27 #include <linux/acpi.h>
  28 #include <drm/drmP.h>
  29 #include <linux/firmware.h>
  30 #include <drm/amdgpu_drm.h>
  31 #include "amdgpu.h"
  32 #include "cgs_linux.h"
  33 #include "atom.h"
  34 #include "amdgpu_ucode.h"
  35
  36 struct amdgpu_cgs_device {
  37         struct cgs_device base;
  38         struct amdgpu_device *adev;
  39 };
  40
  41 #define CGS_FUNC_ADEV                                                   \
  42         struct amdgpu_device *adev =                                    \
  43                 ((struct amdgpu_cgs_device *)cgs_device)->adev
  44
  45 static int amdgpu_cgs_gpu_mem_info(struct cgs_device *cgs_device, enum cgs_gpu_mem_type type,
  46                                    uint64_t *mc_start, uint64_t *mc_size,
  47                                    uint64_t *mem_size)
  48 {
  49         CGS_FUNC_ADEV;
  50         switch(type) {
  51         case CGS_GPU_MEM_TYPE__VISIBLE_CONTIG_FB:
  52         case CGS_GPU_MEM_TYPE__VISIBLE_FB:
  53                 *mc_start = 0;
  54                 *mc_size = adev->mc.visible_vram_size;
  55                 *mem_size = adev->mc.visible_vram_size - adev->vram_pin_size;
  56                 break;
  57         case CGS_GPU_MEM_TYPE__INVISIBLE_CONTIG_FB:
  58         case CGS_GPU_MEM_TYPE__INVISIBLE_FB:
  59                 *mc_start = adev->mc.visible_vram_size;
  60                 *mc_size = adev->mc.real_vram_size - adev->mc.visible_vram_size;
  61                 *mem_size = *mc_size;
  62                 break;
  63         case CGS_GPU_MEM_TYPE__GART_CACHEABLE:
  64         case CGS_GPU_MEM_TYPE__GART_WRITECOMBINE:
  65                 *mc_start = adev->mc.gtt_start;
  66                 *mc_size = adev->mc.gtt_size;
  67                 *mem_size = adev->mc.gtt_size - adev->gart_pin_size;
  68                 break;
  69         default:
  70                 return -EINVAL;
  71         }
  72
  73         return 0;
  74 }
  75
  76 static int amdgpu_cgs_gmap_kmem(struct cgs_device *cgs_device, void *kmem,
  77                                 uint64_t size,
  78                                 uint64_t min_offset, uint64_t max_offset,
  79                                 cgs_handle_t *kmem_handle, uint64_t *mcaddr)
  80 {
  81         CGS_FUNC_ADEV;
  82         int ret;
  83         struct amdgpu_bo *bo;
  84         struct page *kmem_page = vmalloc_to_page(kmem);
  85         int npages = ALIGN(size, PAGE_SIZE) >> PAGE_SHIFT;
  86
  87         struct sg_table *sg = drm_prime_pages_to_sg(&kmem_page, npages);
  88         ret = amdgpu_bo_create(adev, size, PAGE_SIZE, false,
  89                                AMDGPU_GEM_DOMAIN_GTT, 0, sg, NULL, &bo);
  90         if (ret)
  91                 return ret;
  92         ret = amdgpu_bo_reserve(bo, false);
  93         if (unlikely(ret != 0))
  94                 return ret;
  95
  96         /* pin buffer into GTT */
  97         ret = amdgpu_bo_pin_restricted(bo, AMDGPU_GEM_DOMAIN_GTT,
  98                                        min_offset, max_offset, mcaddr);
  99         amdgpu_bo_unreserve(bo);
 100
 101         *kmem_handle = (cgs_handle_t)bo;
 102         return ret;
 103 }
 104
 105 static int amdgpu_cgs_gunmap_kmem(struct cgs_device *cgs_device, cgs_handle_t kmem_handle)
 106 {
 107         struct amdgpu_bo *obj = (struct amdgpu_bo *)kmem_handle;
 108
 109         if (obj) {
 110                 int r = amdgpu_bo_reserve(obj, false);
 111                 if (likely(r == 0)) {
 112                         amdgpu_bo_unpin(obj);
 113                         amdgpu_bo_unreserve(obj);
 114                 }
 115                 amdgpu_bo_unref(&obj);
 116
 117         }
 118         return 0;
 119 }
 120
 121 static int amdgpu_cgs_alloc_gpu_mem(struct cgs_device *cgs_device,
 122                                     enum cgs_gpu_mem_type type,
 123                                     uint64_t size, uint64_t align,
 124                                     uint64_t min_offset, uint64_t max_offset,
 125                                     cgs_handle_t *handle)
 126 {
 127         CGS_FUNC_ADEV;
 128         uint16_t flags = 0;
 129         int ret = 0;
 130         uint32_t domain = 0;
 131         struct amdgpu_bo *obj;
 132         struct ttm_placement placement;
 133         struct ttm_place place;
 134
 135         if (min_offset > max_offset) {
 136                 BUG_ON(1);
 137                 return -EINVAL;
 138         }
 139
 140         /* fail if the alignment is not a power of 2 */
 141         if (((align != 1) && (align & (align - 1)))
 142             || size == 0 || align == 0)
 143                 return -EINVAL;
 144
 145
 146         switch(type) {
 147         case CGS_GPU_MEM_TYPE__VISIBLE_CONTIG_FB:
 148         case CGS_GPU_MEM_TYPE__VISIBLE_FB:
 149                 flags = AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED |
 150                         AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS;
 151                 domain = AMDGPU_GEM_DOMAIN_VRAM;
 152                 if (max_offset > adev->mc.real_vram_size)
 153                         return -EINVAL;
 154                 place.fpfn = min_offset >> PAGE_SHIFT;
 155                 place.lpfn = max_offset >> PAGE_SHIFT;
 156                 place.flags = TTM_PL_FLAG_WC | TTM_PL_FLAG_UNCACHED |
 157                         TTM_PL_FLAG_VRAM;
 158                 break;
 159         case CGS_GPU_MEM_TYPE__INVISIBLE_CONTIG_FB:
 160         case CGS_GPU_MEM_TYPE__INVISIBLE_FB:
 161                 flags = AMDGPU_GEM_CREATE_NO_CPU_ACCESS |
 162                         AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS;
 163                 domain = AMDGPU_GEM_DOMAIN_VRAM;
 164                 if (adev->mc.visible_vram_size < adev->mc.real_vram_size) {
 165                         place.fpfn =
 166                                 max(min_offset, adev->mc.visible_vram_size) >> PAGE_SHIFT;
 167                         place.lpfn =
 168                                 min(max_offset, adev->mc.real_vram_size) >> PAGE_SHIFT;
 169                         place.flags = TTM_PL_FLAG_WC | TTM_PL_FLAG_UNCACHED |
 170                                 TTM_PL_FLAG_VRAM;
 171                 }
 172
 173                 break;
 174         case CGS_GPU_MEM_TYPE__GART_CACHEABLE:
 175                 domain = AMDGPU_GEM_DOMAIN_GTT;
 176                 place.fpfn = min_offset >> PAGE_SHIFT;
 177                 place.lpfn = max_offset >> PAGE_SHIFT;
 178                 place.flags = TTM_PL_FLAG_CACHED | TTM_PL_FLAG_TT;
 179                 break;
 180         case CGS_GPU_MEM_TYPE__GART_WRITECOMBINE:
 181                 flags = AMDGPU_GEM_CREATE_CPU_GTT_USWC;
 182                 domain = AMDGPU_GEM_DOMAIN_GTT;
 183                 place.fpfn = min_offset >> PAGE_SHIFT;
 184                 place.lpfn = max_offset >> PAGE_SHIFT;
 185                 place.flags = TTM_PL_FLAG_WC | TTM_PL_FLAG_TT |
 186                         TTM_PL_FLAG_UNCACHED;
 187                 break;
 188         default:
 189                 return -EINVAL;
 190         }
 191
 192
 193         *handle = 0;
 194
 195         placement.placement = &place;
 196         placement.num_placement = 1;
 197         placement.busy_placement = &place;
 198         placement.num_busy_placement = 1;
 199
 200         ret = amdgpu_bo_create_restricted(adev, size, PAGE_SIZE,
 201                                           true, domain, flags,
 202                                           NULL, &placement, NULL,
 203                                           &obj);
 204         if (ret) {
 205                 DRM_ERROR("(%d) bo create failed\n", ret);
 206                 return ret;
 207         }
 208         *handle = (cgs_handle_t)obj;
 209
 210         return ret;
 211 }
 212
 213 static int amdgpu_cgs_free_gpu_mem(struct cgs_device *cgs_device, cgs_handle_t handle)
 214 {
 215         struct amdgpu_bo *obj = (struct amdgpu_bo *)handle;
 216
 217         if (obj) {
 218                 int r = amdgpu_bo_reserve(obj, false);
 219                 if (likely(r == 0)) {
 220                         amdgpu_bo_kunmap(obj);
 221                         amdgpu_bo_unpin(obj);
 222                         amdgpu_bo_unreserve(obj);
 223                 }
 224                 amdgpu_bo_unref(&obj);
 225
 226         }
 227         return 0;
 228 }
 229
 230 static int amdgpu_cgs_gmap_gpu_mem(struct cgs_device *cgs_device, cgs_handle_t handle,
 231                                    uint64_t *mcaddr)
 232 {
 233         int r;
 234         u64 min_offset, max_offset;
 235         struct amdgpu_bo *obj = (struct amdgpu_bo *)handle;
 236
 237         WARN_ON_ONCE(obj->placement.num_placement > 1);
 238
 239         min_offset = obj->placements[0].fpfn << PAGE_SHIFT;
 240         max_offset = obj->placements[0].lpfn << PAGE_SHIFT;
 241
 242         r = amdgpu_bo_reserve(obj, false);
 243         if (unlikely(r != 0))
 244                 return r;
 245         r = amdgpu_bo_pin_restricted(obj, obj->prefered_domains,
 246                                      min_offset, max_offset, mcaddr);
 247         amdgpu_bo_unreserve(obj);
 248         return r;
 249 }
 250
 251 static int amdgpu_cgs_gunmap_gpu_mem(struct cgs_device *cgs_device, cgs_handle_t handle)
 252 {
 253         int r;
 254         struct amdgpu_bo *obj = (struct amdgpu_bo *)handle;
 255         r = amdgpu_bo_reserve(obj, false);
 256         if (unlikely(r != 0))
 257                 return r;
 258         r = amdgpu_bo_unpin(obj);
 259         amdgpu_bo_unreserve(obj);
 260         return r;
 261 }
 262
 263 static int amdgpu_cgs_kmap_gpu_mem(struct cgs_device *cgs_device, cgs_handle_t handle,
 264                                    void **map)
 265 {
 266         int r;
 267         struct amdgpu_bo *obj = (struct amdgpu_bo *)handle;
 268         r = amdgpu_bo_reserve(obj, false);
 269         if (unlikely(r != 0))
 270                 return r;
 271         r = amdgpu_bo_kmap(obj, map);
 272         amdgpu_bo_unreserve(obj);
 273         return r;
 274 }
 275
 276 static int amdgpu_cgs_kunmap_gpu_mem(struct cgs_device *cgs_device, cgs_handle_t handle)
 277 {
 278         int r;
 279         struct amdgpu_bo *obj = (struct amdgpu_bo *)handle;
 280         r = amdgpu_bo_reserve(obj, false);
 281         if (unlikely(r != 0))
 282                 return r;
 283         amdgpu_bo_kunmap(obj);
 284         amdgpu_bo_unreserve(obj);
 285         return r;
 286 }
 287
 288 static uint32_t amdgpu_cgs_read_register(struct cgs_device *cgs_device, unsigned offset)
 289 {
 290         CGS_FUNC_ADEV;
 291         return RREG32(offset);
 292 }
 293
 294 static void amdgpu_cgs_write_register(struct cgs_device *cgs_device, unsigned offset,
 295                                       uint32_t value)
 296 {
 297         CGS_FUNC_ADEV;
 298         WREG32(offset, value);
 299 }
 300
 301 static uint32_t amdgpu_cgs_read_ind_register(struct cgs_device *cgs_device,
 302                                              enum cgs_ind_reg space,
 303                                              unsigned index)
 304 {
 305         CGS_FUNC_ADEV;
 306         switch (space) {
 307         case CGS_IND_REG__MMIO:
 308                 return RREG32_IDX(index);
 309         case CGS_IND_REG__PCIE:
 310                 return RREG32_PCIE(index);
 311         case CGS_IND_REG__SMC:
 312                 return RREG32_SMC(index);
 313         case CGS_IND_REG__UVD_CTX:
 314                 return RREG32_UVD_CTX(index);
 315         case CGS_IND_REG__DIDT:
 316                 return RREG32_DIDT(index);
 317         case CGS_IND_REG_GC_CAC:
 318                 return RREG32_GC_CAC(index);
 319         case CGS_IND_REG__AUDIO_ENDPT:
 320                 DRM_ERROR("audio endpt register access not implemented.\n");
 321                 return 0;
 322         }
 323         WARN(1, "Invalid indirect register space");
 324         return 0;
 325 }
 326
 327 static void amdgpu_cgs_write_ind_register(struct cgs_device *cgs_device,
 328                                           enum cgs_ind_reg space,
 329                                           unsigned index, uint32_t value)
 330 {
 331         CGS_FUNC_ADEV;
 332         switch (space) {
 333         case CGS_IND_REG__MMIO:
 334                 return WREG32_IDX(index, value);
 335         case CGS_IND_REG__PCIE:
 336                 return WREG32_PCIE(index, value);
 337         case CGS_IND_REG__SMC:
 338                 return WREG32_SMC(index, value);
 339         case CGS_IND_REG__UVD_CTX:
 340                 return WREG32_UVD_CTX(index, value);
 341         case CGS_IND_REG__DIDT:
 342                 return WREG32_DIDT(index, value);
 343         case CGS_IND_REG_GC_CAC:
 344                 return WREG32_GC_CAC(index, value);
 345         case CGS_IND_REG__AUDIO_ENDPT:
 346                 DRM_ERROR("audio endpt register access not implemented.\n");
 347                 return;
 348         }
 349         WARN(1, "Invalid indirect register space");
 350 }
 351
 352 static uint8_t amdgpu_cgs_read_pci_config_byte(struct cgs_device *cgs_device, unsigned addr)
 353 {
 354         CGS_FUNC_ADEV;
 355         uint8_t val;
 356         int ret = pci_read_config_byte(adev->pdev, addr, &val);
 357         if (WARN(ret, "pci_read_config_byte error"))
 358                 return 0;
 359         return val;
 360 }
 361
 362 static uint16_t amdgpu_cgs_read_pci_config_word(struct cgs_device *cgs_device, unsigned addr)
 363 {
 364         CGS_FUNC_ADEV;
 365         uint16_t val;
 366         int ret = pci_read_config_word(adev->pdev, addr, &val);
 367         if (WARN(ret, "pci_read_config_word error"))
 368                 return 0;
 369         return val;
 370 }
 371
 372 static uint32_t amdgpu_cgs_read_pci_config_dword(struct cgs_device *cgs_device,
 373                                                  unsigned addr)
 374 {
 375         CGS_FUNC_ADEV;
 376         uint32_t val;
 377         int ret = pci_read_config_dword(adev->pdev, addr, &val);
 378         if (WARN(ret, "pci_read_config_dword error"))
 379                 return 0;
 380         return val;
 381 }
 382
 383 static void amdgpu_cgs_write_pci_config_byte(struct cgs_device *cgs_device, unsigned addr,
 384                                              uint8_t value)
 385 {
 386         CGS_FUNC_ADEV;
 387         int ret = pci_write_config_byte(adev->pdev, addr, value);
 388         WARN(ret, "pci_write_config_byte error");
 389 }
 390
 391 static void amdgpu_cgs_write_pci_config_word(struct cgs_device *cgs_device, unsigned addr,
 392                                              uint16_t value)
 393 {
 394         CGS_FUNC_ADEV;
 395         int ret = pci_write_config_word(adev->pdev, addr, value);
 396         WARN(ret, "pci_write_config_word error");
 397 }
 398
 399 static void amdgpu_cgs_write_pci_config_dword(struct cgs_device *cgs_device, unsigned addr,
 400                                               uint32_t value)
 401 {
 402         CGS_FUNC_ADEV;
 403         int ret = pci_write_config_dword(adev->pdev, addr, value);
 404         WARN(ret, "pci_write_config_dword error");
 405 }
 406
 407
 408 static int amdgpu_cgs_get_pci_resource(struct cgs_device *cgs_device,
 409                                        enum cgs_resource_type resource_type,
 410                                        uint64_t size,
 411                                        uint64_t offset,
 412                                        uint64_t *resource_base)
 413 {
 414         CGS_FUNC_ADEV;
 415
 416         if (resource_base == NULL)
 417                 return -EINVAL;
 418
 419         switch (resource_type) {
 420         case CGS_RESOURCE_TYPE_MMIO:
 421                 if (adev->rmmio_size == 0)
 422                         return -ENOENT;
 423                 if ((offset + size) > adev->rmmio_size)
 424                         return -EINVAL;
 425                 *resource_base = adev->rmmio_base;
 426                 return 0;
 427         case CGS_RESOURCE_TYPE_DOORBELL:
 428                 if (adev->doorbell.size == 0)
 429                         return -ENOENT;
 430                 if ((offset + size) > adev->doorbell.size)
 431                         return -EINVAL;
 432                 *resource_base = adev->doorbell.base;
 433                 return 0;
 434         case CGS_RESOURCE_TYPE_FB:
 435         case CGS_RESOURCE_TYPE_IO:
 436         case CGS_RESOURCE_TYPE_ROM:
 437         default:
 438                 return -EINVAL;
 439         }
 440 }
 441
 442 static const void *amdgpu_cgs_atom_get_data_table(struct cgs_device *cgs_device,
 443                                                   unsigned table, uint16_t *size,
 444                                                   uint8_t *frev, uint8_t *crev)
 445 {
 446         CGS_FUNC_ADEV;
 447         uint16_t data_start;
 448
 449         if (amdgpu_atom_parse_data_header(
 450                     adev->mode_info.atom_context, table, size,
 451                     frev, crev, &data_start))
 452                 return (uint8_t*)adev->mode_info.atom_context->bios +
 453                         data_start;
 454
 455         return NULL;
 456 }
 457
 458 static int amdgpu_cgs_atom_get_cmd_table_revs(struct cgs_device *cgs_device, unsigned table,
 459                                               uint8_t *frev, uint8_t *crev)
 460 {
 461         CGS_FUNC_ADEV;
 462
 463         if (amdgpu_atom_parse_cmd_header(
 464                     adev->mode_info.atom_context, table,
 465                     frev, crev))
 466                 return 0;
 467
 468         return -EINVAL;
 469 }
 470
 471 static int amdgpu_cgs_atom_exec_cmd_table(struct cgs_device *cgs_device, unsigned table,
 472                                           void *args)
 473 {
 474         CGS_FUNC_ADEV;
 475
 476         return amdgpu_atom_execute_table(
 477                 adev->mode_info.atom_context, table, args);
 478 }
 479
 480 static int amdgpu_cgs_create_pm_request(struct cgs_device *cgs_device, cgs_handle_t *request)
 481 {
 482         /* TODO */
 483         return 0;
 484 }
 485
 486 static int amdgpu_cgs_destroy_pm_request(struct cgs_device *cgs_device, cgs_handle_t request)
 487 {
 488         /* TODO */
 489         return 0;
 490 }
 491
 492 static int amdgpu_cgs_set_pm_request(struct cgs_device *cgs_device, cgs_handle_t request,
 493                                      int active)
 494 {
 495         /* TODO */
 496         return 0;
 497 }
 498
 499 static int amdgpu_cgs_pm_request_clock(struct cgs_device *cgs_device, cgs_handle_t request,
 500                                        enum cgs_clock clock, unsigned freq)
 501 {
 502         /* TODO */
 503         return 0;
 504 }
 505
 506 static int amdgpu_cgs_pm_request_engine(struct cgs_device *cgs_device, cgs_handle_t request,
 507                                         enum cgs_engine engine, int powered)
 508 {
 509         /* TODO */
 510         return 0;
 511 }
 512
 513
 514
 515 static int amdgpu_cgs_pm_query_clock_limits(struct cgs_device *cgs_device,
 516                                             enum cgs_clock clock,
 517                                             struct cgs_clock_limits *limits)
 518 {
 519         /* TODO */
 520         return 0;
 521 }
 522
 523 static int amdgpu_cgs_set_camera_voltages(struct cgs_device *cgs_device, uint32_t mask,
 524                                           const uint32_t *voltages)
 525 {
 526         DRM_ERROR("not implemented");
 527         return -EPERM;
 528 }
 529
 530 struct cgs_irq_params {
 531         unsigned src_id;
 532         cgs_irq_source_set_func_t set;
 533         cgs_irq_handler_func_t handler;
 534         void *private_data;
 535 };
 536
 537 static int cgs_set_irq_state(struct amdgpu_device *adev,
 538                              struct amdgpu_irq_src *src,
 539                              unsigned type,
 540                              enum amdgpu_interrupt_state state)
 541 {
 542         struct cgs_irq_params *irq_params =
 543                 (struct cgs_irq_params *)src->data;
 544         if (!irq_params)
 545                 return -EINVAL;
 546         if (!irq_params->set)
 547                 return -EINVAL;
 548         return irq_params->set(irq_params->private_data,
 549                                irq_params->src_id,
 550                                type,
 551                                (int)state);
 552 }
 553
 554 static int cgs_process_irq(struct amdgpu_device *adev,
 555                            struct amdgpu_irq_src *source,
 556                            struct amdgpu_iv_entry *entry)
 557 {
 558         struct cgs_irq_params *irq_params =
 559                 (struct cgs_irq_params *)source->data;
 560         if (!irq_params)
 561                 return -EINVAL;
 562         if (!irq_params->handler)
 563                 return -EINVAL;
 564         return irq_params->handler(irq_params->private_data,
 565                                    irq_params->src_id,
 566                                    entry->iv_entry);
 567 }
 568
 569 static const struct amdgpu_irq_src_funcs cgs_irq_funcs = {
 570         .set = cgs_set_irq_state,
 571         .process = cgs_process_irq,
 572 };
 573
 574 static int amdgpu_cgs_add_irq_source(struct cgs_device *cgs_device, unsigned src_id,
 575                                      unsigned num_types,
 576                                      cgs_irq_source_set_func_t set,
 577                                      cgs_irq_handler_func_t handler,
 578                                      void *private_data)
 579 {
 580         CGS_FUNC_ADEV;
 581         int ret = 0;
 582         struct cgs_irq_params *irq_params;
 583         struct amdgpu_irq_src *source =
 584                 kzalloc(sizeof(struct amdgpu_irq_src), GFP_KERNEL);
 585         if (!source)
 586                 return -ENOMEM;
 587         irq_params =
 588                 kzalloc(sizeof(struct cgs_irq_params), GFP_KERNEL);
 589         if (!irq_params) {
 590                 kfree(source);
 591                 return -ENOMEM;
 592         }
 593         source->num_types = num_types;
 594         source->funcs = &cgs_irq_funcs;
 595         irq_params->src_id = src_id;
 596         irq_params->set = set;
 597         irq_params->handler = handler;
 598         irq_params->private_data = private_data;
 599         source->data = (void *)irq_params;
 600         ret = amdgpu_irq_add_id(adev, src_id, source);
 601         if (ret) {
 602                 kfree(irq_params);
 603                 kfree(source);
 604         }
 605
 606         return ret;
 607 }
 608
 609 static int amdgpu_cgs_irq_get(struct cgs_device *cgs_device, unsigned src_id, unsigned type)
 610 {
 611         CGS_FUNC_ADEV;
 612         return amdgpu_irq_get(adev, adev->irq.sources[src_id], type);
 613 }
 614
 615 static int amdgpu_cgs_irq_put(struct cgs_device *cgs_device, unsigned src_id, unsigned type)
 616 {
 617         CGS_FUNC_ADEV;
 618         return amdgpu_irq_put(adev, adev->irq.sources[src_id], type);
 619 }
 620
 621 static int amdgpu_cgs_set_clockgating_state(struct cgs_device *cgs_device,
 622                                   enum amd_ip_block_type block_type,
 623                                   enum amd_clockgating_state state)
 624 {
 625         CGS_FUNC_ADEV;
 626         int i, r = -1;
 627
 628         for (i = 0; i < adev->num_ip_blocks; i++) {
 629                 if (!adev->ip_blocks[i].status.valid)
 630                         continue;
 631
 632                 if (adev->ip_blocks[i].version->type == block_type) {
 633                         r = adev->ip_blocks[i].version->funcs->set_clockgating_state(
 634                                                                 (void *)adev,
 635                                                                         state);
 636                         break;
 637                 }
 638         }
 639         return r;
 640 }
 641
 642 static int amdgpu_cgs_set_powergating_state(struct cgs_device *cgs_device,
 643                                   enum amd_ip_block_type block_type,
 644                                   enum amd_powergating_state state)
 645 {
 646         CGS_FUNC_ADEV;
 647         int i, r = -1;
 648
 649         for (i = 0; i < adev->num_ip_blocks; i++) {
 650                 if (!adev->ip_blocks[i].status.valid)
 651                         continue;
 652
 653                 if (adev->ip_blocks[i].version->type == block_type) {
 654                         r = adev->ip_blocks[i].version->funcs->set_powergating_state(
 655                                                                 (void *)adev,
 656                                                                         state);
 657                         break;
 658                 }
 659         }
 660         return r;
 661 }
 662
 663
 664 static uint32_t fw_type_convert(struct cgs_device *cgs_device, uint32_t fw_type)
 665 {
 666         CGS_FUNC_ADEV;
 667         enum AMDGPU_UCODE_ID result = AMDGPU_UCODE_ID_MAXIMUM;
 668
 669         switch (fw_type) {
 670         case CGS_UCODE_ID_SDMA0:
 671                 result = AMDGPU_UCODE_ID_SDMA0;
 672                 break;
 673         case CGS_UCODE_ID_SDMA1:
 674                 result = AMDGPU_UCODE_ID_SDMA1;
 675                 break;
 676         case CGS_UCODE_ID_CP_CE:
 677                 result = AMDGPU_UCODE_ID_CP_CE;
 678                 break;
 679         case CGS_UCODE_ID_CP_PFP:
 680                 result = AMDGPU_UCODE_ID_CP_PFP;
 681                 break;
 682         case CGS_UCODE_ID_CP_ME:
 683                 result = AMDGPU_UCODE_ID_CP_ME;
 684                 break;
 685         case CGS_UCODE_ID_CP_MEC:
 686         case CGS_UCODE_ID_CP_MEC_JT1:
 687                 result = AMDGPU_UCODE_ID_CP_MEC1;
 688                 break;
 689         case CGS_UCODE_ID_CP_MEC_JT2:
 690                 /* for VI. JT2 should be the same as JT1, because:
 691                         1, MEC2 and MEC1 use exactly same FW.
 692                         2, JT2 is not pached but JT1 is.
 693                 */
 694                 if (adev->asic_type >= CHIP_TOPAZ)
 695                         result = AMDGPU_UCODE_ID_CP_MEC1;
 696                 else
 697                         result = AMDGPU_UCODE_ID_CP_MEC2;
 698                 break;
 699         case CGS_UCODE_ID_RLC_G:
 700                 result = AMDGPU_UCODE_ID_RLC_G;
 701                 break;
 702         case CGS_UCODE_ID_STORAGE:
 703                 result = AMDGPU_UCODE_ID_STORAGE;
 704                 break;
 705         default:
 706                 DRM_ERROR("Firmware type not supported\n");
 707         }
 708         return result;
 709 }
 710
 711 static int amdgpu_cgs_rel_firmware(struct cgs_device *cgs_device, enum cgs_ucode_id type)
 712 {
 713         CGS_FUNC_ADEV;
 714         if ((CGS_UCODE_ID_SMU == type) || (CGS_UCODE_ID_SMU_SK == type)) {
 715                 release_firmware(adev->pm.fw);
 716                 adev->pm.fw = NULL;
 717                 return 0;
 718         }
 719         /* cannot release other firmware because they are not created by cgs */
 720         return -EINVAL;
 721 }
 722
 723 static uint16_t amdgpu_get_firmware_version(struct cgs_device *cgs_device,
 724                                         enum cgs_ucode_id type)
 725 {
 726         CGS_FUNC_ADEV;
 727         uint16_t fw_version = 0;
 728
 729         switch (type) {
 730                 case CGS_UCODE_ID_SDMA0:
 731                         fw_version = adev->sdma.instance[0].fw_version;
 732                         break;
 733                 case CGS_UCODE_ID_SDMA1:
 734                         fw_version = adev->sdma.instance[1].fw_version;
 735                         break;
 736                 case CGS_UCODE_ID_CP_CE:
 737                         fw_version = adev->gfx.ce_fw_version;
 738                         break;
 739                 case CGS_UCODE_ID_CP_PFP:
 740                         fw_version = adev->gfx.pfp_fw_version;
 741                         break;
 742                 case CGS_UCODE_ID_CP_ME:
 743                         fw_version = adev->gfx.me_fw_version;
 744                         break;
 745                 case CGS_UCODE_ID_CP_MEC:
 746                         fw_version = adev->gfx.mec_fw_version;
 747                         break;
 748                 case CGS_UCODE_ID_CP_MEC_JT1:
 749                         fw_version = adev->gfx.mec_fw_version;
 750                         break;
 751                 case CGS_UCODE_ID_CP_MEC_JT2:
 752                         fw_version = adev->gfx.mec_fw_version;
 753                         break;
 754                 case CGS_UCODE_ID_RLC_G:
 755                         fw_version = adev->gfx.rlc_fw_version;
 756                         break;
 757                 case CGS_UCODE_ID_STORAGE:
 758                         break;
 759                 default:
 760                         DRM_ERROR("firmware type %d do not have version\n", type);
 761                         break;
 762         }
 763         return fw_version;
 764 }
 765
 766 static int amdgpu_cgs_enter_safe_mode(struct cgs_device *cgs_device,
 767                                         bool en)
 768 {
 769         CGS_FUNC_ADEV;
 770
 771         if (adev->gfx.rlc.funcs->enter_safe_mode == NULL ||
 772                 adev->gfx.rlc.funcs->exit_safe_mode == NULL)
 773                 return 0;
 774
 775         if (en)
 776                 adev->gfx.rlc.funcs->enter_safe_mode(adev);
 777         else
 778                 adev->gfx.rlc.funcs->exit_safe_mode(adev);
 779
 780         return 0;
 781 }
 782
 783 static int amdgpu_cgs_get_firmware_info(struct cgs_device *cgs_device,
 784                                         enum cgs_ucode_id type,
 785                                         struct cgs_firmware_info *info)
 786 {
 787         CGS_FUNC_ADEV;
 788
 789         if ((CGS_UCODE_ID_SMU != type) && (CGS_UCODE_ID_SMU_SK != type)) {
 790                 uint64_t gpu_addr;
 791                 uint32_t data_size;
 792                 const struct gfx_firmware_header_v1_0 *header;
 793                 enum AMDGPU_UCODE_ID id;
 794                 struct amdgpu_firmware_info *ucode;
 795
 796                 id = fw_type_convert(cgs_device, type);
 797                 ucode = &adev->firmware.ucode[id];
 798                 if (ucode->fw == NULL)
 799                         return -EINVAL;
 800
 801                 gpu_addr  = ucode->mc_addr;
 802                 header = (const struct gfx_firmware_header_v1_0 *)ucode->fw->data;
 803                 data_size = le32_to_cpu(header->header.ucode_size_bytes);
 804
 805                 if ((type == CGS_UCODE_ID_CP_MEC_JT1) ||
 806                     (type == CGS_UCODE_ID_CP_MEC_JT2)) {
 807                         gpu_addr += ALIGN(le32_to_cpu(header->header.ucode_size_bytes), PAGE_SIZE);
 808                         data_size = le32_to_cpu(header->jt_size) << 2;
 809                 }
 810
 811                 info->kptr = ucode->kaddr;
 812                 info->image_size = data_size;
 813                 info->mc_addr = gpu_addr;
 814                 info->version = (uint16_t)le32_to_cpu(header->header.ucode_version);
 815
 816                 if (CGS_UCODE_ID_CP_MEC == type)
 817                         info->image_size = (header->jt_offset) << 2;
 818
 819                 info->fw_version = amdgpu_get_firmware_version(cgs_device, type);
 820                 info->feature_version = (uint16_t)le32_to_cpu(header->ucode_feature_version);
 821         } else {
 822                 char fw_name[30] = {0};
 823                 int err = 0;
 824                 uint32_t ucode_size;
 825                 uint32_t ucode_start_address;
 826                 const uint8_t *src;
 827                 const struct smc_firmware_header_v1_0 *hdr;
 828
 829                 if (CGS_UCODE_ID_SMU_SK == type)
 830                         amdgpu_cgs_rel_firmware(cgs_device, CGS_UCODE_ID_SMU);
 831
 832                 if (!adev->pm.fw) {
 833                         switch (adev->asic_type) {
 834                         case CHIP_TOPAZ:
 835                                 if (((adev->pdev->device == 0x6900) && (adev->pdev->revision == 0x81)) ||
 836                                     ((adev->pdev->device == 0x6900) && (adev->pdev->revision == 0x83)) ||
 837                                     ((adev->pdev->device == 0x6907) && (adev->pdev->revision == 0x87))) {
 838                                         info->is_kicker = true;
 839                                         strcpy(fw_name, "amdgpu/topaz_k_smc.bin");
 840                                 } else
 841                                         strcpy(fw_name, "amdgpu/topaz_smc.bin");
 842                                 break;
 843                         case CHIP_TONGA:
 844                                 if (((adev->pdev->device == 0x6939) && (adev->pdev->revision == 0xf1)) ||
 845                                     ((adev->pdev->device == 0x6938) && (adev->pdev->revision == 0xf1))) {
 846                                         info->is_kicker = true;
 847                                         strcpy(fw_name, "amdgpu/tonga_k_smc.bin");
 848                                 } else
 849                                         strcpy(fw_name, "amdgpu/tonga_smc.bin");
 850                                 break;
 851                         case CHIP_FIJI:
 852                                 strcpy(fw_name, "amdgpu/fiji_smc.bin");
 853                                 break;
 854                         case CHIP_POLARIS11:
 855                                 if (type == CGS_UCODE_ID_SMU) {
 856                                         if (((adev->pdev->device == 0x67ef) &&
 857                                              ((adev->pdev->revision == 0xe0) ||
 858                                               (adev->pdev->revision == 0xe2) ||
 859                                               (adev->pdev->revision == 0xe5))) ||
 860                                             ((adev->pdev->device == 0x67ff) &&
 861                                              ((adev->pdev->revision == 0xcf) ||
 862                                               (adev->pdev->revision == 0xef) ||
 863                                               (adev->pdev->revision == 0xff)))) {
 864                                                 info->is_kicker = true;
 865                                                 strcpy(fw_name, "amdgpu/polaris11_k_smc.bin");
 866                                         } else
 867                                                 strcpy(fw_name, "amdgpu/polaris11_smc.bin");
 868                                 } else if (type == CGS_UCODE_ID_SMU_SK) {
 869                                         strcpy(fw_name, "amdgpu/polaris11_smc_sk.bin");
 870                                 }
 871                                 break;
 872                         case CHIP_POLARIS10:
 873                                 if (type == CGS_UCODE_ID_SMU) {
 874                                         if ((adev->pdev->device == 0x67df) &&
 875                                             ((adev->pdev->revision == 0xe0) ||
 876                                              (adev->pdev->revision == 0xe3) ||
 877                                              (adev->pdev->revision == 0xe4) ||
 878                                              (adev->pdev->revision == 0xe5) ||
 879                                              (adev->pdev->revision == 0xe7) ||
 880                                              (adev->pdev->revision == 0xef))) {
 881                                                 info->is_kicker = true;
 882                                                 strcpy(fw_name, "amdgpu/polaris10_k_smc.bin");
 883                                         } else
 884                                                 strcpy(fw_name, "amdgpu/polaris10_smc.bin");
 885                                 } else if (type == CGS_UCODE_ID_SMU_SK) {
 886                                         strcpy(fw_name, "amdgpu/polaris10_smc_sk.bin");
 887                                 }
 888                                 break;
 889                         case CHIP_POLARIS12:
 890                                 strcpy(fw_name, "amdgpu/polaris12_smc.bin");
 891                                 break;
 892                         default:
 893                                 DRM_ERROR("SMC firmware not supported\n");
 894                                 return -EINVAL;
 895                         }
 896
 897                         err = request_firmware(&adev->pm.fw, fw_name, adev->dev);
 898                         if (err) {
 899                                 DRM_ERROR("Failed to request firmware\n");
 900                                 return err;
 901                         }
 902
 903                         err = amdgpu_ucode_validate(adev->pm.fw);
 904                         if (err) {
 905                                 DRM_ERROR("Failed to load firmware \"%s\"", fw_name);
 906                                 release_firmware(adev->pm.fw);
 907                                 adev->pm.fw = NULL;
 908                                 return err;
 909                         }
 910                 }
 911
 912                 hdr = (const struct smc_firmware_header_v1_0 *) adev->pm.fw->data;
 913                 amdgpu_ucode_print_smc_hdr(&hdr->header);
 914                 adev->pm.fw_version = le32_to_cpu(hdr->header.ucode_version);
 915                 ucode_size = le32_to_cpu(hdr->header.ucode_size_bytes);
 916                 ucode_start_address = le32_to_cpu(hdr->ucode_start_addr);
 917                 src = (const uint8_t *)(adev->pm.fw->data +
 918                        le32_to_cpu(hdr->header.ucode_array_offset_bytes));
 919
 920                 info->version = adev->pm.fw_version;
 921                 info->image_size = ucode_size;
 922                 info->ucode_start_address = ucode_start_address;
 923                 info->kptr = (void *)src;
 924         }
 925         return 0;
 926 }
 927
 928 static int amdgpu_cgs_is_virtualization_enabled(void *cgs_device)
 929 {
 930         CGS_FUNC_ADEV;
 931         return amdgpu_sriov_vf(adev);
 932 }
 933
 934 static int amdgpu_cgs_query_system_info(struct cgs_device *cgs_device,
 935                                         struct cgs_system_info *sys_info)
 936 {
 937         CGS_FUNC_ADEV;
 938
 939         if (NULL == sys_info)
 940                 return -ENODEV;
 941
 942         if (sizeof(struct cgs_system_info) != sys_info->size)
 943                 return -ENODEV;
 944
 945         switch (sys_info->info_id) {
 946         case CGS_SYSTEM_INFO_ADAPTER_BDF_ID:
 947                 sys_info->value = adev->pdev->devfn | (adev->pdev->bus->number << 8);
 948                 break;
 949         case CGS_SYSTEM_INFO_PCIE_GEN_INFO:
 950                 sys_info->value = adev->pm.pcie_gen_mask;
 951                 break;
 952         case CGS_SYSTEM_INFO_PCIE_MLW:
 953                 sys_info->value = adev->pm.pcie_mlw_mask;
 954                 break;
 955         case CGS_SYSTEM_INFO_PCIE_DEV:
 956                 sys_info->value = adev->pdev->device;
 957                 break;
 958         case CGS_SYSTEM_INFO_PCIE_REV:
 959                 sys_info->value = adev->pdev->revision;
 960                 break;
 961         case CGS_SYSTEM_INFO_CG_FLAGS:
 962                 sys_info->value = adev->cg_flags;
 963                 break;
 964         case CGS_SYSTEM_INFO_PG_FLAGS:
 965                 sys_info->value = adev->pg_flags;
 966                 break;
 967         case CGS_SYSTEM_INFO_GFX_CU_INFO:
 968                 sys_info->value = adev->gfx.cu_info.number;
 969                 break;
 970         case CGS_SYSTEM_INFO_GFX_SE_INFO:
 971                 sys_info->value = adev->gfx.config.max_shader_engines;
 972                 break;
 973         case CGS_SYSTEM_INFO_PCIE_SUB_SYS_ID:
 974                 sys_info->value = adev->pdev->subsystem_device;
 975                 break;
 976         case CGS_SYSTEM_INFO_PCIE_SUB_SYS_VENDOR_ID:
 977                 sys_info->value = adev->pdev->subsystem_vendor;
 978                 break;
 979         default:
 980                 return -ENODEV;
 981         }
 982
 983         return 0;
 984 }
 985
 986 static int amdgpu_cgs_get_active_displays_info(struct cgs_device *cgs_device,
 987                                           struct cgs_display_info *info)
 988 {
 989         CGS_FUNC_ADEV;
 990         struct amdgpu_crtc *amdgpu_crtc;
 991         struct drm_device *ddev = adev->ddev;
 992         struct drm_crtc *crtc;
 993         uint32_t line_time_us, vblank_lines;
 994         struct cgs_mode_info *mode_info;
 995
 996         if (info == NULL)
 997                 return -EINVAL;
 998
 999         mode_info = info->mode_info;
1000
1001         if (adev->mode_info.num_crtc && adev->mode_info.mode_config_initialized) {
1002                 list_for_each_entry(crtc,
1003                                 &ddev->mode_config.crtc_list, head) {
1004                         amdgpu_crtc = to_amdgpu_crtc(crtc);
1005                         if (crtc->enabled) {
1006                                 info->active_display_mask |= (1 << amdgpu_crtc->crtc_id);
1007                                 info->display_count++;
1008                         }
1009                         if (mode_info != NULL &&
1010                                 crtc->enabled && amdgpu_crtc->enabled &&
1011                                 amdgpu_crtc->hw_mode.clock) {
1012                                 line_time_us = (amdgpu_crtc->hw_mode.crtc_htotal * 1000) /
1013                                                         amdgpu_crtc->hw_mode.clock;
1014                                 vblank_lines = amdgpu_crtc->hw_mode.crtc_vblank_end -
1015                                                         amdgpu_crtc->hw_mode.crtc_vdisplay +
1016                                                         (amdgpu_crtc->v_border * 2);
1017                                 mode_info->vblank_time_us = vblank_lines * line_time_us;
1018                                 mode_info->refresh_rate = drm_mode_vrefresh(&amdgpu_crtc->hw_mode);
1019                                 mode_info->ref_clock = adev->clock.spll.reference_freq;
1020                                 mode_info = NULL;
1021                         }
1022                 }
1023         }
1024
1025         return 0;
1026 }
1027
1028
1029 static int amdgpu_cgs_notify_dpm_enabled(struct cgs_device *cgs_device, bool enabled)
1030 {
1031         CGS_FUNC_ADEV;
1032
1033         adev->pm.dpm_enabled = enabled;
1034
1035         return 0;
1036 }
1037
1038 /** \brief evaluate acpi namespace object, handle or pathname must be valid
1039  *  \param cgs_device
1040  *  \param info input/output arguments for the control method
1041  *  \return status
1042  */
1043
1044 #if defined(CONFIG_ACPI)
1045 static int amdgpu_cgs_acpi_eval_object(struct cgs_device *cgs_device,
1046                                     struct cgs_acpi_method_info *info)
1047 {
1048         CGS_FUNC_ADEV;
1049         acpi_handle handle;
1050         struct acpi_object_list input;
1051         struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
1052         union acpi_object *params, *obj;
1053         uint8_t name[5] = {'\0'};
1054         struct cgs_acpi_method_argument *argument;
1055         uint32_t i, count;
1056         acpi_status status;
1057         int result;
1058
1059         handle = ACPI_HANDLE(&adev->pdev->dev);
1060         if (!handle)
1061                 return -ENODEV;
1062
1063         memset(&input, 0, sizeof(struct acpi_object_list));
1064
1065         /* validate input info */
1066         if (info->size != sizeof(struct cgs_acpi_method_info))
1067                 return -EINVAL;
1068
1069         input.count = info->input_count;
1070         if (info->input_count > 0) {
1071                 if (info->pinput_argument == NULL)
1072                         return -EINVAL;
1073                 argument = info->pinput_argument;
1074                 for (i = 0; i < info->input_count; i++) {
1075                         if (((argument->type == ACPI_TYPE_STRING) ||
1076                              (argument->type == ACPI_TYPE_BUFFER)) &&
1077                             (argument->pointer == NULL))
1078                                 return -EINVAL;
1079                         argument++;
1080                 }
1081         }
1082
1083         if (info->output_count > 0) {
1084                 if (info->poutput_argument == NULL)
1085                         return -EINVAL;
1086                 argument = info->poutput_argument;
1087                 for (i = 0; i < info->output_count; i++) {
1088                         if (((argument->type == ACPI_TYPE_STRING) ||
1089                                 (argument->type == ACPI_TYPE_BUFFER))
1090                                 && (argument->pointer == NULL))
1091                                 return -EINVAL;
1092                         argument++;
1093                 }
1094         }
1095
1096         /* The path name passed to acpi_evaluate_object should be null terminated */
1097         if ((info->field & CGS_ACPI_FIELD_METHOD_NAME) != 0) {
1098                 strncpy(name, (char *)&(info->name), sizeof(uint32_t));
1099                 name[4] = '\0';
1100         }
1101
1102         /* parse input parameters */
1103         if (input.count > 0) {
1104                 input.pointer = params =
1105                                 kzalloc(sizeof(union acpi_object) * input.count, GFP_KERNEL);
1106                 if (params == NULL)
1107                         return -EINVAL;
1108
1109                 argument = info->pinput_argument;
1110
1111                 for (i = 0; i < input.count; i++) {
1112                         params->type = argument->type;
1113                         switch (params->type) {
1114                         case ACPI_TYPE_INTEGER:
1115                                 params->integer.value = argument->value;
1116                                 break;
1117                         case ACPI_TYPE_STRING:
1118                                 params->string.length = argument->data_length;
1119                                 params->string.pointer = argument->pointer;
1120                                 break;
1121                         case ACPI_TYPE_BUFFER:
1122                                 params->buffer.length = argument->data_length;
1123                                 params->buffer.pointer = argument->pointer;
1124                                 break;
1125                         default:
1126                                 break;
1127                         }
1128                         params++;
1129                         argument++;
1130                 }
1131         }
1132
1133         /* parse output info */
1134         count = info->output_count;
1135         argument = info->poutput_argument;
1136
1137         /* evaluate the acpi method */
1138         status = acpi_evaluate_object(handle, name, &input, &output);
1139
1140         if (ACPI_FAILURE(status)) {
1141                 result = -EIO;
1142                 goto free_input;
1143         }
1144
1145         /* return the output info */
1146         obj = output.pointer;
1147
1148         if (count > 1) {
1149                 if ((obj->type != ACPI_TYPE_PACKAGE) ||
1150                         (obj->package.count != count)) {
1151                         result = -EIO;
1152                         goto free_obj;
1153                 }
1154                 params = obj->package.elements;
1155         } else
1156                 params = obj;
1157
1158         if (params == NULL) {
1159                 result = -EIO;
1160                 goto free_obj;
1161         }
1162
1163         for (i = 0; i < count; i++) {
1164                 if (argument->type != params->type) {
1165                         result = -EIO;
1166                         goto free_obj;
1167                 }
1168                 switch (params->type) {
1169                 case ACPI_TYPE_INTEGER:
1170                         argument->value = params->integer.value;
1171                         break;
1172                 case ACPI_TYPE_STRING:
1173                         if ((params->string.length != argument->data_length) ||
1174                                 (params->string.pointer == NULL)) {
1175                                 result = -EIO;
1176                                 goto free_obj;
1177                         }
1178                         strncpy(argument->pointer,
1179                                 params->string.pointer,
1180                                 params->string.length);
1181                         break;
1182                 case ACPI_TYPE_BUFFER:
1183                         if (params->buffer.pointer == NULL) {
1184                                 result = -EIO;
1185                                 goto free_obj;
1186                         }
1187                         memcpy(argument->pointer,
1188                                 params->buffer.pointer,
1189                                 argument->data_length);
1190                         break;
1191                 default:
1192                         break;
1193                 }
1194                 argument++;
1195                 params++;
1196         }
1197
1198         result = 0;
1199 free_obj:
1200         kfree(obj);
1201 free_input:
1202         kfree((void *)input.pointer);
1203         return result;
1204 }
1205 #else
1206 static int amdgpu_cgs_acpi_eval_object(struct cgs_device *cgs_device,
1207                                 struct cgs_acpi_method_info *info)
1208 {
1209         return -EIO;
1210 }
1211 #endif
1212
1213 static int amdgpu_cgs_call_acpi_method(struct cgs_device *cgs_device,
1214                                         uint32_t acpi_method,
1215                                         uint32_t acpi_function,
1216                                         void *pinput, void *poutput,
1217                                         uint32_t output_count,
1218                                         uint32_t input_size,
1219                                         uint32_t output_size)
1220 {
1221         struct cgs_acpi_method_argument acpi_input[2] = { {0}, {0} };
1222         struct cgs_acpi_method_argument acpi_output = {0};
1223         struct cgs_acpi_method_info info = {0};
1224
1225         acpi_input[0].type = CGS_ACPI_TYPE_INTEGER;
1226         acpi_input[0].data_length = sizeof(uint32_t);
1227         acpi_input[0].value = acpi_function;
1228
1229         acpi_input[1].type = CGS_ACPI_TYPE_BUFFER;
1230         acpi_input[1].data_length = input_size;
1231         acpi_input[1].pointer = pinput;
1232
1233         acpi_output.type = CGS_ACPI_TYPE_BUFFER;
1234         acpi_output.data_length = output_size;
1235         acpi_output.pointer = poutput;
1236
1237         info.size = sizeof(struct cgs_acpi_method_info);
1238         info.field = CGS_ACPI_FIELD_METHOD_NAME | CGS_ACPI_FIELD_INPUT_ARGUMENT_COUNT;
1239         info.input_count = 2;
1240         info.name = acpi_method;
1241         info.pinput_argument = acpi_input;
1242         info.output_count = output_count;
1243         info.poutput_argument = &acpi_output;
1244
1245         return amdgpu_cgs_acpi_eval_object(cgs_device, &info);
1246 }
1247
1248 static const struct cgs_ops amdgpu_cgs_ops = {
1249         .gpu_mem_info = amdgpu_cgs_gpu_mem_info,
1250         .gmap_kmem = amdgpu_cgs_gmap_kmem,
1251         .gunmap_kmem = amdgpu_cgs_gunmap_kmem,
1252         .alloc_gpu_mem = amdgpu_cgs_alloc_gpu_mem,
1253         .free_gpu_mem = amdgpu_cgs_free_gpu_mem,
1254         .gmap_gpu_mem = amdgpu_cgs_gmap_gpu_mem,
1255         .gunmap_gpu_mem = amdgpu_cgs_gunmap_gpu_mem,
1256         .kmap_gpu_mem = amdgpu_cgs_kmap_gpu_mem,
1257         .kunmap_gpu_mem = amdgpu_cgs_kunmap_gpu_mem,
1258         .read_register = amdgpu_cgs_read_register,
1259         .write_register = amdgpu_cgs_write_register,
1260         .read_ind_register = amdgpu_cgs_read_ind_register,
1261         .write_ind_register = amdgpu_cgs_write_ind_register,
1262         .read_pci_config_byte = amdgpu_cgs_read_pci_config_byte,
1263         .read_pci_config_word = amdgpu_cgs_read_pci_config_word,
1264         .read_pci_config_dword = amdgpu_cgs_read_pci_config_dword,
1265         .write_pci_config_byte = amdgpu_cgs_write_pci_config_byte,
1266         .write_pci_config_word = amdgpu_cgs_write_pci_config_word,
1267         .write_pci_config_dword = amdgpu_cgs_write_pci_config_dword,
1268         .get_pci_resource = amdgpu_cgs_get_pci_resource,
1269         .atom_get_data_table = amdgpu_cgs_atom_get_data_table,
1270         .atom_get_cmd_table_revs = amdgpu_cgs_atom_get_cmd_table_revs,
1271         .atom_exec_cmd_table = amdgpu_cgs_atom_exec_cmd_table,
1272         .create_pm_request = amdgpu_cgs_create_pm_request,
1273         .destroy_pm_request = amdgpu_cgs_destroy_pm_request,
1274         .set_pm_request = amdgpu_cgs_set_pm_request,
1275         .pm_request_clock = amdgpu_cgs_pm_request_clock,
1276         .pm_request_engine = amdgpu_cgs_pm_request_engine,
1277         .pm_query_clock_limits = amdgpu_cgs_pm_query_clock_limits,
1278         .set_camera_voltages = amdgpu_cgs_set_camera_voltages,
1279         .get_firmware_info = amdgpu_cgs_get_firmware_info,
1280         .rel_firmware = amdgpu_cgs_rel_firmware,
1281         .set_powergating_state = amdgpu_cgs_set_powergating_state,
1282         .set_clockgating_state = amdgpu_cgs_set_clockgating_state,
1283         .get_active_displays_info = amdgpu_cgs_get_active_displays_info,
1284         .notify_dpm_enabled = amdgpu_cgs_notify_dpm_enabled,
1285         .call_acpi_method = amdgpu_cgs_call_acpi_method,
1286         .query_system_info = amdgpu_cgs_query_system_info,
1287         .is_virtualization_enabled = amdgpu_cgs_is_virtualization_enabled,
1288         .enter_safe_mode = amdgpu_cgs_enter_safe_mode,
1289 };
1290
1291 static const struct cgs_os_ops amdgpu_cgs_os_ops = {
1292         .add_irq_source = amdgpu_cgs_add_irq_source,
1293         .irq_get = amdgpu_cgs_irq_get,
1294         .irq_put = amdgpu_cgs_irq_put
1295 };
1296
1297 struct cgs_device *amdgpu_cgs_create_device(struct amdgpu_device *adev)
1298 {
1299         struct amdgpu_cgs_device *cgs_device =
1300                 kmalloc(sizeof(*cgs_device), GFP_KERNEL);
1301
1302         if (!cgs_device) {
1303                 DRM_ERROR("Couldn't allocate CGS device structure\n");
1304                 return NULL;
1305         }
1306
1307         cgs_device->base.ops = &amdgpu_cgs_ops;
1308         cgs_device->base.os_ops = &amdgpu_cgs_os_ops;
1309         cgs_device->adev = adev;
1310
1311         return (struct cgs_device *)cgs_device;
1312 }
1313
1314 void amdgpu_cgs_destroy_device(struct cgs_device *cgs_device)
1315 {
1316         kfree(cgs_device);
1317 }