drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v7.c

   1 /*
   2  * Copyright 2014 Advanced Micro Devices, Inc.
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice shall be included in
  12  * all copies or substantial portions of the Software.
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  20  * OTHER DEALINGS IN THE SOFTWARE.
  21  */
  22
  23 #include <linux/fdtable.h>
  24 #include <linux/uaccess.h>
  25 #include <linux/firmware.h>
  26 #include <drm/drmP.h>
  27 #include "amdgpu.h"
  28 #include "amdgpu_amdkfd.h"
  29 #include "cikd.h"
  30 #include "cik_sdma.h"
  31 #include "amdgpu_ucode.h"
  32 #include "gfx_v7_0.h"
  33 #include "gca/gfx_7_2_d.h"
  34 #include "gca/gfx_7_2_enum.h"
  35 #include "gca/gfx_7_2_sh_mask.h"
  36 #include "oss/oss_2_0_d.h"
  37 #include "oss/oss_2_0_sh_mask.h"
  38 #include "gmc/gmc_7_1_d.h"
  39 #include "gmc/gmc_7_1_sh_mask.h"
  40 #include "cik_structs.h"
  41
  42 enum hqd_dequeue_request_type {
  43         NO_ACTION = 0,
  44         DRAIN_PIPE,
  45         RESET_WAVES
  46 };
  47
  48 enum {
  49         MAX_TRAPID = 8,         /* 3 bits in the bitfield. */
  50         MAX_WATCH_ADDRESSES = 4
  51 };
  52
  53 enum {
  54         ADDRESS_WATCH_REG_ADDR_HI = 0,
  55         ADDRESS_WATCH_REG_ADDR_LO,
  56         ADDRESS_WATCH_REG_CNTL,
  57         ADDRESS_WATCH_REG_MAX
  58 };
  59
  60 /*  not defined in the CI/KV reg file  */
  61 enum {
  62         ADDRESS_WATCH_REG_CNTL_ATC_BIT = 0x10000000UL,
  63         ADDRESS_WATCH_REG_CNTL_DEFAULT_MASK = 0x00FFFFFF,
  64         ADDRESS_WATCH_REG_ADDLOW_MASK_EXTENSION = 0x03000000,
  65         /* extend the mask to 26 bits to match the low address field */
  66         ADDRESS_WATCH_REG_ADDLOW_SHIFT = 6,
  67         ADDRESS_WATCH_REG_ADDHIGH_MASK = 0xFFFF
  68 };
  69
  70 static const uint32_t watchRegs[MAX_WATCH_ADDRESSES * ADDRESS_WATCH_REG_MAX] = {
  71         mmTCP_WATCH0_ADDR_H, mmTCP_WATCH0_ADDR_L, mmTCP_WATCH0_CNTL,
  72         mmTCP_WATCH1_ADDR_H, mmTCP_WATCH1_ADDR_L, mmTCP_WATCH1_CNTL,
  73         mmTCP_WATCH2_ADDR_H, mmTCP_WATCH2_ADDR_L, mmTCP_WATCH2_CNTL,
  74         mmTCP_WATCH3_ADDR_H, mmTCP_WATCH3_ADDR_L, mmTCP_WATCH3_CNTL
  75 };
  76
  77 union TCP_WATCH_CNTL_BITS {
  78         struct {
  79                 uint32_t mask:24;
  80                 uint32_t vmid:4;
  81                 uint32_t atc:1;
  82                 uint32_t mode:2;
  83                 uint32_t valid:1;
  84         } bitfields, bits;
  85         uint32_t u32All;
  86         signed int i32All;
  87         float f32All;
  88 };
  89
  90 /*
  91  * Register access functions
  92  */
  93
  94 static void kgd_program_sh_mem_settings(struct kgd_dev *kgd, uint32_t vmid,
  95                 uint32_t sh_mem_config, uint32_t sh_mem_ape1_base,
  96                 uint32_t sh_mem_ape1_limit, uint32_t sh_mem_bases);
  97
  98 static int kgd_set_pasid_vmid_mapping(struct kgd_dev *kgd, unsigned int pasid,
  99                                         unsigned int vmid);
 100
 101 static int kgd_init_pipeline(struct kgd_dev *kgd, uint32_t pipe_id,
 102                                 uint32_t hpd_size, uint64_t hpd_gpu_addr);
 103 static int kgd_init_interrupts(struct kgd_dev *kgd, uint32_t pipe_id);
 104 static int kgd_hqd_load(struct kgd_dev *kgd, void *mqd, uint32_t pipe_id,
 105                         uint32_t queue_id, uint32_t __user *wptr,
 106                         uint32_t wptr_shift, uint32_t wptr_mask,
 107                         struct mm_struct *mm);
 108 static int kgd_hqd_dump(struct kgd_dev *kgd,
 109                         uint32_t pipe_id, uint32_t queue_id,
 110                         uint32_t (**dump)[2], uint32_t *n_regs);
 111 static int kgd_hqd_sdma_load(struct kgd_dev *kgd, void *mqd,
 112                              uint32_t __user *wptr, struct mm_struct *mm);
 113 static int kgd_hqd_sdma_dump(struct kgd_dev *kgd,
 114                              uint32_t engine_id, uint32_t queue_id,
 115                              uint32_t (**dump)[2], uint32_t *n_regs);
 116 static bool kgd_hqd_is_occupied(struct kgd_dev *kgd, uint64_t queue_address,
 117                                 uint32_t pipe_id, uint32_t queue_id);
 118
 119 static int kgd_hqd_destroy(struct kgd_dev *kgd, void *mqd,
 120                                 enum kfd_preempt_type reset_type,
 121                                 unsigned int utimeout, uint32_t pipe_id,
 122                                 uint32_t queue_id);
 123 static bool kgd_hqd_sdma_is_occupied(struct kgd_dev *kgd, void *mqd);
 124 static int kgd_hqd_sdma_destroy(struct kgd_dev *kgd, void *mqd,
 125                                 unsigned int utimeout);
 126 static int kgd_address_watch_disable(struct kgd_dev *kgd);
 127 static int kgd_address_watch_execute(struct kgd_dev *kgd,
 128                                         unsigned int watch_point_id,
 129                                         uint32_t cntl_val,
 130                                         uint32_t addr_hi,
 131                                         uint32_t addr_lo);
 132 static int kgd_wave_control_execute(struct kgd_dev *kgd,
 133                                         uint32_t gfx_index_val,
 134                                         uint32_t sq_cmd);
 135 static uint32_t kgd_address_watch_get_offset(struct kgd_dev *kgd,
 136                                         unsigned int watch_point_id,
 137                                         unsigned int reg_offset);
 138
 139 static bool get_atc_vmid_pasid_mapping_valid(struct kgd_dev *kgd, uint8_t vmid);
 140 static uint16_t get_atc_vmid_pasid_mapping_pasid(struct kgd_dev *kgd,
 141                                                         uint8_t vmid);
 142 static void write_vmid_invalidate_request(struct kgd_dev *kgd, uint8_t vmid);
 143
 144 static uint16_t get_fw_version(struct kgd_dev *kgd, enum kgd_engine_type type);
 145 static void set_scratch_backing_va(struct kgd_dev *kgd,
 146                                         uint64_t va, uint32_t vmid);
 147
 148 /* Because of REG_GET_FIELD() being used, we put this function in the
 149  * asic specific file.
 150  */
 151 static int get_tile_config(struct kgd_dev *kgd,
 152                 struct tile_config *config)
 153 {
 154         struct amdgpu_device *adev = (struct amdgpu_device *)kgd;
 155
 156         config->gb_addr_config = adev->gfx.config.gb_addr_config;
 157         config->num_banks = REG_GET_FIELD(adev->gfx.config.mc_arb_ramcfg,
 158                                 MC_ARB_RAMCFG, NOOFBANK);
 159         config->num_ranks = REG_GET_FIELD(adev->gfx.config.mc_arb_ramcfg,
 160                                 MC_ARB_RAMCFG, NOOFRANKS);
 161
 162         config->tile_config_ptr = adev->gfx.config.tile_mode_array;
 163         config->num_tile_configs =
 164                         ARRAY_SIZE(adev->gfx.config.tile_mode_array);
 165         config->macro_tile_config_ptr =
 166                         adev->gfx.config.macrotile_mode_array;
 167         config->num_macro_tile_configs =
 168                         ARRAY_SIZE(adev->gfx.config.macrotile_mode_array);
 169
 170         return 0;
 171 }
 172
 173 static const struct kfd2kgd_calls kfd2kgd = {
 174         .init_gtt_mem_allocation = alloc_gtt_mem,
 175         .free_gtt_mem = free_gtt_mem,
 176         .get_local_mem_info = get_local_mem_info,
 177         .get_gpu_clock_counter = get_gpu_clock_counter,
 178         .get_max_engine_clock_in_mhz = get_max_engine_clock_in_mhz,
 179         .alloc_pasid = amdgpu_pasid_alloc,
 180         .free_pasid = amdgpu_pasid_free,
 181         .program_sh_mem_settings = kgd_program_sh_mem_settings,
 182         .set_pasid_vmid_mapping = kgd_set_pasid_vmid_mapping,
 183         .init_pipeline = kgd_init_pipeline,
 184         .init_interrupts = kgd_init_interrupts,
 185         .hqd_load = kgd_hqd_load,
 186         .hqd_sdma_load = kgd_hqd_sdma_load,
 187         .hqd_dump = kgd_hqd_dump,
 188         .hqd_sdma_dump = kgd_hqd_sdma_dump,
 189         .hqd_is_occupied = kgd_hqd_is_occupied,
 190         .hqd_sdma_is_occupied = kgd_hqd_sdma_is_occupied,
 191         .hqd_destroy = kgd_hqd_destroy,
 192         .hqd_sdma_destroy = kgd_hqd_sdma_destroy,
 193         .address_watch_disable = kgd_address_watch_disable,
 194         .address_watch_execute = kgd_address_watch_execute,
 195         .wave_control_execute = kgd_wave_control_execute,
 196         .address_watch_get_offset = kgd_address_watch_get_offset,
 197         .get_atc_vmid_pasid_mapping_pasid = get_atc_vmid_pasid_mapping_pasid,
 198         .get_atc_vmid_pasid_mapping_valid = get_atc_vmid_pasid_mapping_valid,
 199         .write_vmid_invalidate_request = write_vmid_invalidate_request,
 200         .get_fw_version = get_fw_version,
 201         .set_scratch_backing_va = set_scratch_backing_va,
 202         .get_tile_config = get_tile_config,
 203         .get_cu_info = get_cu_info,
 204         .get_vram_usage = amdgpu_amdkfd_get_vram_usage
 205 };
 206
 207 struct kfd2kgd_calls *amdgpu_amdkfd_gfx_7_get_functions(void)
 208 {
 209         return (struct kfd2kgd_calls *)&kfd2kgd;
 210 }
 211
 212 static inline struct amdgpu_device *get_amdgpu_device(struct kgd_dev *kgd)
 213 {
 214         return (struct amdgpu_device *)kgd;
 215 }
 216
 217 static void lock_srbm(struct kgd_dev *kgd, uint32_t mec, uint32_t pipe,
 218                         uint32_t queue, uint32_t vmid)
 219 {
 220         struct amdgpu_device *adev = get_amdgpu_device(kgd);
 221         uint32_t value = PIPEID(pipe) | MEID(mec) | VMID(vmid) | QUEUEID(queue);
 222
 223         mutex_lock(&adev->srbm_mutex);
 224         WREG32(mmSRBM_GFX_CNTL, value);
 225 }
 226
 227 static void unlock_srbm(struct kgd_dev *kgd)
 228 {
 229         struct amdgpu_device *adev = get_amdgpu_device(kgd);
 230
 231         WREG32(mmSRBM_GFX_CNTL, 0);
 232         mutex_unlock(&adev->srbm_mutex);
 233 }
 234
 235 static void acquire_queue(struct kgd_dev *kgd, uint32_t pipe_id,
 236                                 uint32_t queue_id)
 237 {
 238         struct amdgpu_device *adev = get_amdgpu_device(kgd);
 239
 240         uint32_t mec = (pipe_id / adev->gfx.mec.num_pipe_per_mec) + 1;
 241         uint32_t pipe = (pipe_id % adev->gfx.mec.num_pipe_per_mec);
 242
 243         lock_srbm(kgd, mec, pipe, queue_id, 0);
 244 }
 245
 246 static void release_queue(struct kgd_dev *kgd)
 247 {
 248         unlock_srbm(kgd);
 249 }
 250
 251 static void kgd_program_sh_mem_settings(struct kgd_dev *kgd, uint32_t vmid,
 252                                         uint32_t sh_mem_config,
 253                                         uint32_t sh_mem_ape1_base,
 254                                         uint32_t sh_mem_ape1_limit,
 255                                         uint32_t sh_mem_bases)
 256 {
 257         struct amdgpu_device *adev = get_amdgpu_device(kgd);
 258
 259         lock_srbm(kgd, 0, 0, 0, vmid);
 260
 261         WREG32(mmSH_MEM_CONFIG, sh_mem_config);
 262         WREG32(mmSH_MEM_APE1_BASE, sh_mem_ape1_base);
 263         WREG32(mmSH_MEM_APE1_LIMIT, sh_mem_ape1_limit);
 264         WREG32(mmSH_MEM_BASES, sh_mem_bases);
 265
 266         unlock_srbm(kgd);
 267 }
 268
 269 static int kgd_set_pasid_vmid_mapping(struct kgd_dev *kgd, unsigned int pasid,
 270                                         unsigned int vmid)
 271 {
 272         struct amdgpu_device *adev = get_amdgpu_device(kgd);
 273
 274         /*
 275          * We have to assume that there is no outstanding mapping.
 276          * The ATC_VMID_PASID_MAPPING_UPDATE_STATUS bit could be 0 because
 277          * a mapping is in progress or because a mapping finished and the
 278          * SW cleared it. So the protocol is to always wait & clear.
 279          */
 280         uint32_t pasid_mapping = (pasid == 0) ? 0 : (uint32_t)pasid |
 281                         ATC_VMID0_PASID_MAPPING__VALID_MASK;
 282
 283         WREG32(mmATC_VMID0_PASID_MAPPING + vmid, pasid_mapping);
 284
 285         while (!(RREG32(mmATC_VMID_PASID_MAPPING_UPDATE_STATUS) & (1U << vmid)))
 286                 cpu_relax();
 287         WREG32(mmATC_VMID_PASID_MAPPING_UPDATE_STATUS, 1U << vmid);
 288
 289         /* Mapping vmid to pasid also for IH block */
 290         WREG32(mmIH_VMID_0_LUT + vmid, pasid_mapping);
 291
 292         return 0;
 293 }
 294
 295 static int kgd_init_pipeline(struct kgd_dev *kgd, uint32_t pipe_id,
 296                                 uint32_t hpd_size, uint64_t hpd_gpu_addr)
 297 {
 298         /* amdgpu owns the per-pipe state */
 299         return 0;
 300 }
 301
 302 static int kgd_init_interrupts(struct kgd_dev *kgd, uint32_t pipe_id)
 303 {
 304         struct amdgpu_device *adev = get_amdgpu_device(kgd);
 305         uint32_t mec;
 306         uint32_t pipe;
 307
 308         mec = (pipe_id / adev->gfx.mec.num_pipe_per_mec) + 1;
 309         pipe = (pipe_id % adev->gfx.mec.num_pipe_per_mec);
 310
 311         lock_srbm(kgd, mec, pipe, 0, 0);
 312
 313         WREG32(mmCPC_INT_CNTL, CP_INT_CNTL_RING0__TIME_STAMP_INT_ENABLE_MASK |
 314                         CP_INT_CNTL_RING0__OPCODE_ERROR_INT_ENABLE_MASK);
 315
 316         unlock_srbm(kgd);
 317
 318         return 0;
 319 }
 320
 321 static inline uint32_t get_sdma_base_addr(struct cik_sdma_rlc_registers *m)
 322 {
 323         uint32_t retval;
 324
 325         retval = m->sdma_engine_id * SDMA1_REGISTER_OFFSET +
 326                         m->sdma_queue_id * KFD_CIK_SDMA_QUEUE_OFFSET;
 327
 328         pr_debug("kfd: sdma base address: 0x%x\n", retval);
 329
 330         return retval;
 331 }
 332
 333 static inline struct cik_mqd *get_mqd(void *mqd)
 334 {
 335         return (struct cik_mqd *)mqd;
 336 }
 337
 338 static inline struct cik_sdma_rlc_registers *get_sdma_mqd(void *mqd)
 339 {
 340         return (struct cik_sdma_rlc_registers *)mqd;
 341 }
 342
 343 static int kgd_hqd_load(struct kgd_dev *kgd, void *mqd, uint32_t pipe_id,
 344                         uint32_t queue_id, uint32_t __user *wptr,
 345                         uint32_t wptr_shift, uint32_t wptr_mask,
 346                         struct mm_struct *mm)
 347 {
 348         struct amdgpu_device *adev = get_amdgpu_device(kgd);
 349         struct cik_mqd *m;
 350         uint32_t *mqd_hqd;
 351         uint32_t reg, wptr_val, data;
 352         bool valid_wptr = false;
 353
 354         m = get_mqd(mqd);
 355
 356         acquire_queue(kgd, pipe_id, queue_id);
 357
 358         /* HQD registers extend from CP_MQD_BASE_ADDR to CP_MQD_CONTROL. */
 359         mqd_hqd = &m->cp_mqd_base_addr_lo;
 360
 361         for (reg = mmCP_MQD_BASE_ADDR; reg <= mmCP_MQD_CONTROL; reg++)
 362                 WREG32(reg, mqd_hqd[reg - mmCP_MQD_BASE_ADDR]);
 363
 364         /* Copy userspace write pointer value to register.
 365          * Activate doorbell logic to monitor subsequent changes.
 366          */
 367         data = REG_SET_FIELD(m->cp_hqd_pq_doorbell_control,
 368                              CP_HQD_PQ_DOORBELL_CONTROL, DOORBELL_EN, 1);
 369         WREG32(mmCP_HQD_PQ_DOORBELL_CONTROL, data);
 370
 371         /* read_user_ptr may take the mm->mmap_sem.
 372          * release srbm_mutex to avoid circular dependency between
 373          * srbm_mutex->mm_sem->reservation_ww_class_mutex->srbm_mutex.
 374          */
 375         release_queue(kgd);
 376         valid_wptr = read_user_wptr(mm, wptr, wptr_val);
 377         acquire_queue(kgd, pipe_id, queue_id);
 378         if (valid_wptr)
 379                 WREG32(mmCP_HQD_PQ_WPTR, (wptr_val << wptr_shift) & wptr_mask);
 380
 381         data = REG_SET_FIELD(m->cp_hqd_active, CP_HQD_ACTIVE, ACTIVE, 1);
 382         WREG32(mmCP_HQD_ACTIVE, data);
 383
 384         release_queue(kgd);
 385
 386         return 0;
 387 }
 388
 389 static int kgd_hqd_dump(struct kgd_dev *kgd,
 390                         uint32_t pipe_id, uint32_t queue_id,
 391                         uint32_t (**dump)[2], uint32_t *n_regs)
 392 {
 393         struct amdgpu_device *adev = get_amdgpu_device(kgd);
 394         uint32_t i = 0, reg;
 395 #define HQD_N_REGS (35+4)
 396 #define DUMP_REG(addr) do {                             \
 397                 if (WARN_ON_ONCE(i >= HQD_N_REGS))      \
 398                         break;                          \
 399                 (*dump)[i][0] = (addr) << 2;            \
 400                 (*dump)[i++][1] = RREG32(addr);         \
 401         } while (0)
 402
 403         *dump = kmalloc(HQD_N_REGS*2*sizeof(uint32_t), GFP_KERNEL);
 404         if (*dump == NULL)
 405                 return -ENOMEM;
 406
 407         acquire_queue(kgd, pipe_id, queue_id);
 408
 409         DUMP_REG(mmCOMPUTE_STATIC_THREAD_MGMT_SE0);
 410         DUMP_REG(mmCOMPUTE_STATIC_THREAD_MGMT_SE1);
 411         DUMP_REG(mmCOMPUTE_STATIC_THREAD_MGMT_SE2);
 412         DUMP_REG(mmCOMPUTE_STATIC_THREAD_MGMT_SE3);
 413
 414         for (reg = mmCP_MQD_BASE_ADDR; reg <= mmCP_MQD_CONTROL; reg++)
 415                 DUMP_REG(reg);
 416
 417         release_queue(kgd);
 418
 419         WARN_ON_ONCE(i != HQD_N_REGS);
 420         *n_regs = i;
 421
 422         return 0;
 423 }
 424
 425 static int kgd_hqd_sdma_load(struct kgd_dev *kgd, void *mqd,
 426                              uint32_t __user *wptr, struct mm_struct *mm)
 427 {
 428         struct amdgpu_device *adev = get_amdgpu_device(kgd);
 429         struct cik_sdma_rlc_registers *m;
 430         unsigned long end_jiffies;
 431         uint32_t sdma_base_addr;
 432         uint32_t data;
 433
 434         m = get_sdma_mqd(mqd);
 435         sdma_base_addr = get_sdma_base_addr(m);
 436
 437         WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_CNTL,
 438                 m->sdma_rlc_rb_cntl & (~SDMA0_RLC0_RB_CNTL__RB_ENABLE_MASK));
 439
 440         end_jiffies = msecs_to_jiffies(2000) + jiffies;
 441         while (true) {
 442                 data = RREG32(sdma_base_addr + mmSDMA0_RLC0_CONTEXT_STATUS);
 443                 if (data & SDMA0_RLC0_CONTEXT_STATUS__IDLE_MASK)
 444                         break;
 445                 if (time_after(jiffies, end_jiffies))
 446                         return -ETIME;
 447                 usleep_range(500, 1000);
 448         }
 449         if (m->sdma_engine_id) {
 450                 data = RREG32(mmSDMA1_GFX_CONTEXT_CNTL);
 451                 data = REG_SET_FIELD(data, SDMA1_GFX_CONTEXT_CNTL,
 452                                 RESUME_CTX, 0);
 453                 WREG32(mmSDMA1_GFX_CONTEXT_CNTL, data);
 454         } else {
 455                 data = RREG32(mmSDMA0_GFX_CONTEXT_CNTL);
 456                 data = REG_SET_FIELD(data, SDMA0_GFX_CONTEXT_CNTL,
 457                                 RESUME_CTX, 0);
 458                 WREG32(mmSDMA0_GFX_CONTEXT_CNTL, data);
 459         }
 460
 461         data = REG_SET_FIELD(m->sdma_rlc_doorbell, SDMA0_RLC0_DOORBELL,
 462                              ENABLE, 1);
 463         WREG32(sdma_base_addr + mmSDMA0_RLC0_DOORBELL, data);
 464         WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_RPTR, m->sdma_rlc_rb_rptr);
 465
 466         if (read_user_wptr(mm, wptr, data))
 467                 WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_WPTR, data);
 468         else
 469                 WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_WPTR,
 470                        m->sdma_rlc_rb_rptr);
 471
 472         WREG32(sdma_base_addr + mmSDMA0_RLC0_VIRTUAL_ADDR,
 473                                 m->sdma_rlc_virtual_addr);
 474         WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_BASE, m->sdma_rlc_rb_base);
 475         WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_BASE_HI,
 476                         m->sdma_rlc_rb_base_hi);
 477         WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_RPTR_ADDR_LO,
 478                         m->sdma_rlc_rb_rptr_addr_lo);
 479         WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_RPTR_ADDR_HI,
 480                         m->sdma_rlc_rb_rptr_addr_hi);
 481
 482         data = REG_SET_FIELD(m->sdma_rlc_rb_cntl, SDMA0_RLC0_RB_CNTL,
 483                              RB_ENABLE, 1);
 484         WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_CNTL, data);
 485
 486         return 0;
 487 }
 488
 489 static int kgd_hqd_sdma_dump(struct kgd_dev *kgd,
 490                              uint32_t engine_id, uint32_t queue_id,
 491                              uint32_t (**dump)[2], uint32_t *n_regs)
 492 {
 493         struct amdgpu_device *adev = get_amdgpu_device(kgd);
 494         uint32_t sdma_offset = engine_id * SDMA1_REGISTER_OFFSET +
 495                 queue_id * KFD_CIK_SDMA_QUEUE_OFFSET;
 496         uint32_t i = 0, reg;
 497 #undef HQD_N_REGS
 498 #define HQD_N_REGS (19+4)
 499
 500         *dump = kmalloc(HQD_N_REGS*2*sizeof(uint32_t), GFP_KERNEL);
 501         if (*dump == NULL)
 502                 return -ENOMEM;
 503
 504         for (reg = mmSDMA0_RLC0_RB_CNTL; reg <= mmSDMA0_RLC0_DOORBELL; reg++)
 505                 DUMP_REG(sdma_offset + reg);
 506         for (reg = mmSDMA0_RLC0_VIRTUAL_ADDR; reg <= mmSDMA0_RLC0_WATERMARK;
 507              reg++)
 508                 DUMP_REG(sdma_offset + reg);
 509
 510         WARN_ON_ONCE(i != HQD_N_REGS);
 511         *n_regs = i;
 512
 513         return 0;
 514 }
 515
 516 static bool kgd_hqd_is_occupied(struct kgd_dev *kgd, uint64_t queue_address,
 517                                 uint32_t pipe_id, uint32_t queue_id)
 518 {
 519         struct amdgpu_device *adev = get_amdgpu_device(kgd);
 520         uint32_t act;
 521         bool retval = false;
 522         uint32_t low, high;
 523
 524         acquire_queue(kgd, pipe_id, queue_id);
 525         act = RREG32(mmCP_HQD_ACTIVE);
 526         if (act) {
 527                 low = lower_32_bits(queue_address >> 8);
 528                 high = upper_32_bits(queue_address >> 8);
 529
 530                 if (low == RREG32(mmCP_HQD_PQ_BASE) &&
 531                                 high == RREG32(mmCP_HQD_PQ_BASE_HI))
 532                         retval = true;
 533         }
 534         release_queue(kgd);
 535         return retval;
 536 }
 537
 538 static bool kgd_hqd_sdma_is_occupied(struct kgd_dev *kgd, void *mqd)
 539 {
 540         struct amdgpu_device *adev = get_amdgpu_device(kgd);
 541         struct cik_sdma_rlc_registers *m;
 542         uint32_t sdma_base_addr;
 543         uint32_t sdma_rlc_rb_cntl;
 544
 545         m = get_sdma_mqd(mqd);
 546         sdma_base_addr = get_sdma_base_addr(m);
 547
 548         sdma_rlc_rb_cntl = RREG32(sdma_base_addr + mmSDMA0_RLC0_RB_CNTL);
 549
 550         if (sdma_rlc_rb_cntl & SDMA0_RLC0_RB_CNTL__RB_ENABLE_MASK)
 551                 return true;
 552
 553         return false;
 554 }
 555
 556 static int kgd_hqd_destroy(struct kgd_dev *kgd, void *mqd,
 557                                 enum kfd_preempt_type reset_type,
 558                                 unsigned int utimeout, uint32_t pipe_id,
 559                                 uint32_t queue_id)
 560 {
 561         struct amdgpu_device *adev = get_amdgpu_device(kgd);
 562         uint32_t temp;
 563         enum hqd_dequeue_request_type type;
 564         unsigned long flags, end_jiffies;
 565         int retry;
 566
 567         acquire_queue(kgd, pipe_id, queue_id);
 568         WREG32(mmCP_HQD_PQ_DOORBELL_CONTROL, 0);
 569
 570         switch (reset_type) {
 571         case KFD_PREEMPT_TYPE_WAVEFRONT_DRAIN:
 572                 type = DRAIN_PIPE;
 573                 break;
 574         case KFD_PREEMPT_TYPE_WAVEFRONT_RESET:
 575                 type = RESET_WAVES;
 576                 break;
 577         default:
 578                 type = DRAIN_PIPE;
 579                 break;
 580         }
 581
 582         /* Workaround: If IQ timer is active and the wait time is close to or
 583          * equal to 0, dequeueing is not safe. Wait until either the wait time
 584          * is larger or timer is cleared. Also, ensure that IQ_REQ_PEND is
 585          * cleared before continuing. Also, ensure wait times are set to at
 586          * least 0x3.
 587          */
 588         local_irq_save(flags);
 589         preempt_disable();
 590         retry = 5000; /* wait for 500 usecs at maximum */
 591         while (true) {
 592                 temp = RREG32(mmCP_HQD_IQ_TIMER);
 593                 if (REG_GET_FIELD(temp, CP_HQD_IQ_TIMER, PROCESSING_IQ)) {
 594                         pr_debug("HW is processing IQ\n");
 595                         goto loop;
 596                 }
 597                 if (REG_GET_FIELD(temp, CP_HQD_IQ_TIMER, ACTIVE)) {
 598                         if (REG_GET_FIELD(temp, CP_HQD_IQ_TIMER, RETRY_TYPE)
 599                                         == 3) /* SEM-rearm is safe */
 600                                 break;
 601                         /* Wait time 3 is safe for CP, but our MMIO read/write
 602                          * time is close to 1 microsecond, so check for 10 to
 603                          * leave more buffer room
 604                          */
 605                         if (REG_GET_FIELD(temp, CP_HQD_IQ_TIMER, WAIT_TIME)
 606                                         >= 10)
 607                                 break;
 608                         pr_debug("IQ timer is active\n");
 609                 } else
 610                         break;
 611 loop:
 612                 if (!retry) {
 613                         pr_err("CP HQD IQ timer status time out\n");
 614                         break;
 615                 }
 616                 ndelay(100);
 617                 --retry;
 618         }
 619         retry = 1000;
 620         while (true) {
 621                 temp = RREG32(mmCP_HQD_DEQUEUE_REQUEST);
 622                 if (!(temp & CP_HQD_DEQUEUE_REQUEST__IQ_REQ_PEND_MASK))
 623                         break;
 624                 pr_debug("Dequeue request is pending\n");
 625
 626                 if (!retry) {
 627                         pr_err("CP HQD dequeue request time out\n");
 628                         break;
 629                 }
 630                 ndelay(100);
 631                 --retry;
 632         }
 633         local_irq_restore(flags);
 634         preempt_enable();
 635
 636         WREG32(mmCP_HQD_DEQUEUE_REQUEST, type);
 637
 638         end_jiffies = (utimeout * HZ / 1000) + jiffies;
 639         while (true) {
 640                 temp = RREG32(mmCP_HQD_ACTIVE);
 641                 if (!(temp & CP_HQD_ACTIVE__ACTIVE_MASK))
 642                         break;
 643                 if (time_after(jiffies, end_jiffies)) {
 644                         pr_err("cp queue preemption time out\n");
 645                         release_queue(kgd);
 646                         return -ETIME;
 647                 }
 648                 usleep_range(500, 1000);
 649         }
 650
 651         release_queue(kgd);
 652         return 0;
 653 }
 654
 655 static int kgd_hqd_sdma_destroy(struct kgd_dev *kgd, void *mqd,
 656                                 unsigned int utimeout)
 657 {
 658         struct amdgpu_device *adev = get_amdgpu_device(kgd);
 659         struct cik_sdma_rlc_registers *m;
 660         uint32_t sdma_base_addr;
 661         uint32_t temp;
 662         unsigned long end_jiffies = (utimeout * HZ / 1000) + jiffies;
 663
 664         m = get_sdma_mqd(mqd);
 665         sdma_base_addr = get_sdma_base_addr(m);
 666
 667         temp = RREG32(sdma_base_addr + mmSDMA0_RLC0_RB_CNTL);
 668         temp = temp & ~SDMA0_RLC0_RB_CNTL__RB_ENABLE_MASK;
 669         WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_CNTL, temp);
 670
 671         while (true) {
 672                 temp = RREG32(sdma_base_addr + mmSDMA0_RLC0_CONTEXT_STATUS);
 673                 if (temp & SDMA0_STATUS_REG__RB_CMD_IDLE__SHIFT)
 674                         break;
 675                 if (time_after(jiffies, end_jiffies))
 676                         return -ETIME;
 677                 usleep_range(500, 1000);
 678         }
 679
 680         WREG32(sdma_base_addr + mmSDMA0_RLC0_DOORBELL, 0);
 681         WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_CNTL,
 682                 RREG32(sdma_base_addr + mmSDMA0_RLC0_RB_CNTL) |
 683                 SDMA0_RLC0_RB_CNTL__RB_ENABLE_MASK);
 684
 685         m->sdma_rlc_rb_rptr = RREG32(sdma_base_addr + mmSDMA0_RLC0_RB_RPTR);
 686
 687         return 0;
 688 }
 689
 690 static int kgd_address_watch_disable(struct kgd_dev *kgd)
 691 {
 692         struct amdgpu_device *adev = get_amdgpu_device(kgd);
 693         union TCP_WATCH_CNTL_BITS cntl;
 694         unsigned int i;
 695
 696         cntl.u32All = 0;
 697
 698         cntl.bitfields.valid = 0;
 699         cntl.bitfields.mask = ADDRESS_WATCH_REG_CNTL_DEFAULT_MASK;
 700         cntl.bitfields.atc = 1;
 701
 702         /* Turning off this address until we set all the registers */
 703         for (i = 0; i < MAX_WATCH_ADDRESSES; i++)
 704                 WREG32(watchRegs[i * ADDRESS_WATCH_REG_MAX +
 705                         ADDRESS_WATCH_REG_CNTL], cntl.u32All);
 706
 707         return 0;
 708 }
 709
 710 static int kgd_address_watch_execute(struct kgd_dev *kgd,
 711                                         unsigned int watch_point_id,
 712                                         uint32_t cntl_val,
 713                                         uint32_t addr_hi,
 714                                         uint32_t addr_lo)
 715 {
 716         struct amdgpu_device *adev = get_amdgpu_device(kgd);
 717         union TCP_WATCH_CNTL_BITS cntl;
 718
 719         cntl.u32All = cntl_val;
 720
 721         /* Turning off this watch point until we set all the registers */
 722         cntl.bitfields.valid = 0;
 723         WREG32(watchRegs[watch_point_id * ADDRESS_WATCH_REG_MAX +
 724                 ADDRESS_WATCH_REG_CNTL], cntl.u32All);
 725
 726         WREG32(watchRegs[watch_point_id * ADDRESS_WATCH_REG_MAX +
 727                 ADDRESS_WATCH_REG_ADDR_HI], addr_hi);
 728
 729         WREG32(watchRegs[watch_point_id * ADDRESS_WATCH_REG_MAX +
 730                 ADDRESS_WATCH_REG_ADDR_LO], addr_lo);
 731
 732         /* Enable the watch point */
 733         cntl.bitfields.valid = 1;
 734
 735         WREG32(watchRegs[watch_point_id * ADDRESS_WATCH_REG_MAX +
 736                 ADDRESS_WATCH_REG_CNTL], cntl.u32All);
 737
 738         return 0;
 739 }
 740
 741 static int kgd_wave_control_execute(struct kgd_dev *kgd,
 742                                         uint32_t gfx_index_val,
 743                                         uint32_t sq_cmd)
 744 {
 745         struct amdgpu_device *adev = get_amdgpu_device(kgd);
 746         uint32_t data;
 747
 748         mutex_lock(&adev->grbm_idx_mutex);
 749
 750         WREG32(mmGRBM_GFX_INDEX, gfx_index_val);
 751         WREG32(mmSQ_CMD, sq_cmd);
 752
 753         /*  Restore the GRBM_GFX_INDEX register  */
 754
 755         data = GRBM_GFX_INDEX__INSTANCE_BROADCAST_WRITES_MASK |
 756                 GRBM_GFX_INDEX__SH_BROADCAST_WRITES_MASK |
 757                 GRBM_GFX_INDEX__SE_BROADCAST_WRITES_MASK;
 758
 759         WREG32(mmGRBM_GFX_INDEX, data);
 760
 761         mutex_unlock(&adev->grbm_idx_mutex);
 762
 763         return 0;
 764 }
 765
 766 static uint32_t kgd_address_watch_get_offset(struct kgd_dev *kgd,
 767                                         unsigned int watch_point_id,
 768                                         unsigned int reg_offset)
 769 {
 770         return watchRegs[watch_point_id * ADDRESS_WATCH_REG_MAX + reg_offset];
 771 }
 772
 773 static bool get_atc_vmid_pasid_mapping_valid(struct kgd_dev *kgd,
 774                                                         uint8_t vmid)
 775 {
 776         uint32_t reg;
 777         struct amdgpu_device *adev = (struct amdgpu_device *) kgd;
 778
 779         reg = RREG32(mmATC_VMID0_PASID_MAPPING + vmid);
 780         return reg & ATC_VMID0_PASID_MAPPING__VALID_MASK;
 781 }
 782
 783 static uint16_t get_atc_vmid_pasid_mapping_pasid(struct kgd_dev *kgd,
 784                                                                 uint8_t vmid)
 785 {
 786         uint32_t reg;
 787         struct amdgpu_device *adev = (struct amdgpu_device *) kgd;
 788
 789         reg = RREG32(mmATC_VMID0_PASID_MAPPING + vmid);
 790         return reg & ATC_VMID0_PASID_MAPPING__VALID_MASK;
 791 }
 792
 793 static void write_vmid_invalidate_request(struct kgd_dev *kgd, uint8_t vmid)
 794 {
 795         struct amdgpu_device *adev = (struct amdgpu_device *) kgd;
 796
 797         WREG32(mmVM_INVALIDATE_REQUEST, 1 << vmid);
 798 }
 799
 800 static void set_scratch_backing_va(struct kgd_dev *kgd,
 801                                         uint64_t va, uint32_t vmid)
 802 {
 803         struct amdgpu_device *adev = (struct amdgpu_device *) kgd;
 804
 805         lock_srbm(kgd, 0, 0, 0, vmid);
 806         WREG32(mmSH_HIDDEN_PRIVATE_BASE_VMID, va);
 807         unlock_srbm(kgd);
 808 }
 809
 810 static uint16_t get_fw_version(struct kgd_dev *kgd, enum kgd_engine_type type)
 811 {
 812         struct amdgpu_device *adev = (struct amdgpu_device *) kgd;
 813         const union amdgpu_firmware_header *hdr;
 814
 815         BUG_ON(kgd == NULL);
 816
 817         switch (type) {
 818         case KGD_ENGINE_PFP:
 819                 hdr = (const union amdgpu_firmware_header *)
 820                                                 adev->gfx.pfp_fw->data;
 821                 break;
 822
 823         case KGD_ENGINE_ME:
 824                 hdr = (const union amdgpu_firmware_header *)
 825                                                 adev->gfx.me_fw->data;
 826                 break;
 827
 828         case KGD_ENGINE_CE:
 829                 hdr = (const union amdgpu_firmware_header *)
 830                                                 adev->gfx.ce_fw->data;
 831                 break;
 832
 833         case KGD_ENGINE_MEC1:
 834                 hdr = (const union amdgpu_firmware_header *)
 835                                                 adev->gfx.mec_fw->data;
 836                 break;
 837
 838         case KGD_ENGINE_MEC2:
 839                 hdr = (const union amdgpu_firmware_header *)
 840                                                 adev->gfx.mec2_fw->data;
 841                 break;
 842
 843         case KGD_ENGINE_RLC:
 844                 hdr = (const union amdgpu_firmware_header *)
 845                                                 adev->gfx.rlc_fw->data;
 846                 break;
 847
 848         case KGD_ENGINE_SDMA1:
 849                 hdr = (const union amdgpu_firmware_header *)
 850                                                 adev->sdma.instance[0].fw->data;
 851                 break;
 852
 853         case KGD_ENGINE_SDMA2:
 854                 hdr = (const union amdgpu_firmware_header *)
 855                                                 adev->sdma.instance[1].fw->data;
 856                 break;
 857
 858         default:
 859                 return 0;
 860         }
 861
 862         if (hdr == NULL)
 863                 return 0;
 864
 865         /* Only 12 bit in use*/
 866         return hdr->common.ucode_version;
 867 }
 868