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 "gca/gfx_7_2_d.h"
  33 #include "gca/gfx_7_2_enum.h"
  34 #include "gca/gfx_7_2_sh_mask.h"
  35 #include "oss/oss_2_0_d.h"
  36 #include "oss/oss_2_0_sh_mask.h"
  37 #include "gmc/gmc_7_1_d.h"
  38 #include "gmc/gmc_7_1_sh_mask.h"
  39 #include "cik_structs.h"
  40
  41 #define CIK_PIPE_PER_MEC        (4)
  42
  43 enum {
  44         MAX_TRAPID = 8,         /* 3 bits in the bitfield. */
  45         MAX_WATCH_ADDRESSES = 4
  46 };
  47
  48 enum {
  49         ADDRESS_WATCH_REG_ADDR_HI = 0,
  50         ADDRESS_WATCH_REG_ADDR_LO,
  51         ADDRESS_WATCH_REG_CNTL,
  52         ADDRESS_WATCH_REG_MAX
  53 };
  54
  55 /*  not defined in the CI/KV reg file  */
  56 enum {
  57         ADDRESS_WATCH_REG_CNTL_ATC_BIT = 0x10000000UL,
  58         ADDRESS_WATCH_REG_CNTL_DEFAULT_MASK = 0x00FFFFFF,
  59         ADDRESS_WATCH_REG_ADDLOW_MASK_EXTENSION = 0x03000000,
  60         /* extend the mask to 26 bits to match the low address field */
  61         ADDRESS_WATCH_REG_ADDLOW_SHIFT = 6,
  62         ADDRESS_WATCH_REG_ADDHIGH_MASK = 0xFFFF
  63 };
  64
  65 static const uint32_t watchRegs[MAX_WATCH_ADDRESSES * ADDRESS_WATCH_REG_MAX] = {
  66         mmTCP_WATCH0_ADDR_H, mmTCP_WATCH0_ADDR_L, mmTCP_WATCH0_CNTL,
  67         mmTCP_WATCH1_ADDR_H, mmTCP_WATCH1_ADDR_L, mmTCP_WATCH1_CNTL,
  68         mmTCP_WATCH2_ADDR_H, mmTCP_WATCH2_ADDR_L, mmTCP_WATCH2_CNTL,
  69         mmTCP_WATCH3_ADDR_H, mmTCP_WATCH3_ADDR_L, mmTCP_WATCH3_CNTL
  70 };
  71
  72 union TCP_WATCH_CNTL_BITS {
  73         struct {
  74                 uint32_t mask:24;
  75                 uint32_t vmid:4;
  76                 uint32_t atc:1;
  77                 uint32_t mode:2;
  78                 uint32_t valid:1;
  79         } bitfields, bits;
  80         uint32_t u32All;
  81         signed int i32All;
  82         float f32All;
  83 };
  84
  85 /*
  86  * Register access functions
  87  */
  88
  89 static void kgd_program_sh_mem_settings(struct kgd_dev *kgd, uint32_t vmid,
  90                 uint32_t sh_mem_config, uint32_t sh_mem_ape1_base,
  91                 uint32_t sh_mem_ape1_limit, uint32_t sh_mem_bases);
  92
  93 static int kgd_set_pasid_vmid_mapping(struct kgd_dev *kgd, unsigned int pasid,
  94                                         unsigned int vmid);
  95
  96 static int kgd_init_pipeline(struct kgd_dev *kgd, uint32_t pipe_id,
  97                                 uint32_t hpd_size, uint64_t hpd_gpu_addr);
  98 static int kgd_init_interrupts(struct kgd_dev *kgd, uint32_t pipe_id);
  99 static int kgd_hqd_load(struct kgd_dev *kgd, void *mqd, uint32_t pipe_id,
 100                         uint32_t queue_id, uint32_t __user *wptr);
 101 static int kgd_hqd_sdma_load(struct kgd_dev *kgd, void *mqd);
 102 static bool kgd_hqd_is_occupied(struct kgd_dev *kgd, uint64_t queue_address,
 103                                 uint32_t pipe_id, uint32_t queue_id);
 104
 105 static int kgd_hqd_destroy(struct kgd_dev *kgd, uint32_t reset_type,
 106                                 unsigned int timeout, uint32_t pipe_id,
 107                                 uint32_t queue_id);
 108 static bool kgd_hqd_sdma_is_occupied(struct kgd_dev *kgd, void *mqd);
 109 static int kgd_hqd_sdma_destroy(struct kgd_dev *kgd, void *mqd,
 110                                 unsigned int timeout);
 111 static int kgd_address_watch_disable(struct kgd_dev *kgd);
 112 static int kgd_address_watch_execute(struct kgd_dev *kgd,
 113                                         unsigned int watch_point_id,
 114                                         uint32_t cntl_val,
 115                                         uint32_t addr_hi,
 116                                         uint32_t addr_lo);
 117 static int kgd_wave_control_execute(struct kgd_dev *kgd,
 118                                         uint32_t gfx_index_val,
 119                                         uint32_t sq_cmd);
 120 static uint32_t kgd_address_watch_get_offset(struct kgd_dev *kgd,
 121                                         unsigned int watch_point_id,
 122                                         unsigned int reg_offset);
 123
 124 static bool get_atc_vmid_pasid_mapping_valid(struct kgd_dev *kgd, uint8_t vmid);
 125 static uint16_t get_atc_vmid_pasid_mapping_pasid(struct kgd_dev *kgd,
 126                                                         uint8_t vmid);
 127 static void write_vmid_invalidate_request(struct kgd_dev *kgd, uint8_t vmid);
 128
 129 static uint16_t get_fw_version(struct kgd_dev *kgd, enum kgd_engine_type type);
 130
 131 static const struct kfd2kgd_calls kfd2kgd = {
 132         .init_gtt_mem_allocation = alloc_gtt_mem,
 133         .free_gtt_mem = free_gtt_mem,
 134         .get_vmem_size = get_vmem_size,
 135         .get_gpu_clock_counter = get_gpu_clock_counter,
 136         .get_max_engine_clock_in_mhz = get_max_engine_clock_in_mhz,
 137         .program_sh_mem_settings = kgd_program_sh_mem_settings,
 138         .set_pasid_vmid_mapping = kgd_set_pasid_vmid_mapping,
 139         .init_pipeline = kgd_init_pipeline,
 140         .init_interrupts = kgd_init_interrupts,
 141         .hqd_load = kgd_hqd_load,
 142         .hqd_sdma_load = kgd_hqd_sdma_load,
 143         .hqd_is_occupied = kgd_hqd_is_occupied,
 144         .hqd_sdma_is_occupied = kgd_hqd_sdma_is_occupied,
 145         .hqd_destroy = kgd_hqd_destroy,
 146         .hqd_sdma_destroy = kgd_hqd_sdma_destroy,
 147         .address_watch_disable = kgd_address_watch_disable,
 148         .address_watch_execute = kgd_address_watch_execute,
 149         .wave_control_execute = kgd_wave_control_execute,
 150         .address_watch_get_offset = kgd_address_watch_get_offset,
 151         .get_atc_vmid_pasid_mapping_pasid = get_atc_vmid_pasid_mapping_pasid,
 152         .get_atc_vmid_pasid_mapping_valid = get_atc_vmid_pasid_mapping_valid,
 153         .write_vmid_invalidate_request = write_vmid_invalidate_request,
 154         .get_fw_version = get_fw_version
 155 };
 156
 157 struct kfd2kgd_calls *amdgpu_amdkfd_gfx_7_get_functions(void)
 158 {
 159         return (struct kfd2kgd_calls *)&kfd2kgd;
 160 }
 161
 162 static inline struct amdgpu_device *get_amdgpu_device(struct kgd_dev *kgd)
 163 {
 164         return (struct amdgpu_device *)kgd;
 165 }
 166
 167 static void lock_srbm(struct kgd_dev *kgd, uint32_t mec, uint32_t pipe,
 168                         uint32_t queue, uint32_t vmid)
 169 {
 170         struct amdgpu_device *adev = get_amdgpu_device(kgd);
 171         uint32_t value = PIPEID(pipe) | MEID(mec) | VMID(vmid) | QUEUEID(queue);
 172
 173         mutex_lock(&adev->srbm_mutex);
 174         WREG32(mmSRBM_GFX_CNTL, value);
 175 }
 176
 177 static void unlock_srbm(struct kgd_dev *kgd)
 178 {
 179         struct amdgpu_device *adev = get_amdgpu_device(kgd);
 180
 181         WREG32(mmSRBM_GFX_CNTL, 0);
 182         mutex_unlock(&adev->srbm_mutex);
 183 }
 184
 185 static void acquire_queue(struct kgd_dev *kgd, uint32_t pipe_id,
 186                                 uint32_t queue_id)
 187 {
 188         uint32_t mec = (++pipe_id / CIK_PIPE_PER_MEC) + 1;
 189         uint32_t pipe = (pipe_id % CIK_PIPE_PER_MEC);
 190
 191         lock_srbm(kgd, mec, pipe, queue_id, 0);
 192 }
 193
 194 static void release_queue(struct kgd_dev *kgd)
 195 {
 196         unlock_srbm(kgd);
 197 }
 198
 199 static void kgd_program_sh_mem_settings(struct kgd_dev *kgd, uint32_t vmid,
 200                                         uint32_t sh_mem_config,
 201                                         uint32_t sh_mem_ape1_base,
 202                                         uint32_t sh_mem_ape1_limit,
 203                                         uint32_t sh_mem_bases)
 204 {
 205         struct amdgpu_device *adev = get_amdgpu_device(kgd);
 206
 207         lock_srbm(kgd, 0, 0, 0, vmid);
 208
 209         WREG32(mmSH_MEM_CONFIG, sh_mem_config);
 210         WREG32(mmSH_MEM_APE1_BASE, sh_mem_ape1_base);
 211         WREG32(mmSH_MEM_APE1_LIMIT, sh_mem_ape1_limit);
 212         WREG32(mmSH_MEM_BASES, sh_mem_bases);
 213
 214         unlock_srbm(kgd);
 215 }
 216
 217 static int kgd_set_pasid_vmid_mapping(struct kgd_dev *kgd, unsigned int pasid,
 218                                         unsigned int vmid)
 219 {
 220         struct amdgpu_device *adev = get_amdgpu_device(kgd);
 221
 222         /*
 223          * We have to assume that there is no outstanding mapping.
 224          * The ATC_VMID_PASID_MAPPING_UPDATE_STATUS bit could be 0 because
 225          * a mapping is in progress or because a mapping finished and the
 226          * SW cleared it. So the protocol is to always wait & clear.
 227          */
 228         uint32_t pasid_mapping = (pasid == 0) ? 0 : (uint32_t)pasid |
 229                         ATC_VMID0_PASID_MAPPING__VALID_MASK;
 230
 231         WREG32(mmATC_VMID0_PASID_MAPPING + vmid, pasid_mapping);
 232
 233         while (!(RREG32(mmATC_VMID_PASID_MAPPING_UPDATE_STATUS) & (1U << vmid)))
 234                 cpu_relax();
 235         WREG32(mmATC_VMID_PASID_MAPPING_UPDATE_STATUS, 1U << vmid);
 236
 237         /* Mapping vmid to pasid also for IH block */
 238         WREG32(mmIH_VMID_0_LUT + vmid, pasid_mapping);
 239
 240         return 0;
 241 }
 242
 243 static int kgd_init_pipeline(struct kgd_dev *kgd, uint32_t pipe_id,
 244                                 uint32_t hpd_size, uint64_t hpd_gpu_addr)
 245 {
 246         struct amdgpu_device *adev = get_amdgpu_device(kgd);
 247
 248         uint32_t mec = (++pipe_id / CIK_PIPE_PER_MEC) + 1;
 249         uint32_t pipe = (pipe_id % CIK_PIPE_PER_MEC);
 250
 251         lock_srbm(kgd, mec, pipe, 0, 0);
 252         WREG32(mmCP_HPD_EOP_BASE_ADDR, lower_32_bits(hpd_gpu_addr >> 8));
 253         WREG32(mmCP_HPD_EOP_BASE_ADDR_HI, upper_32_bits(hpd_gpu_addr >> 8));
 254         WREG32(mmCP_HPD_EOP_VMID, 0);
 255         WREG32(mmCP_HPD_EOP_CONTROL, hpd_size);
 256         unlock_srbm(kgd);
 257
 258         return 0;
 259 }
 260
 261 static int kgd_init_interrupts(struct kgd_dev *kgd, uint32_t pipe_id)
 262 {
 263         struct amdgpu_device *adev = get_amdgpu_device(kgd);
 264         uint32_t mec;
 265         uint32_t pipe;
 266
 267         mec = (pipe_id / CIK_PIPE_PER_MEC) + 1;
 268         pipe = (pipe_id % CIK_PIPE_PER_MEC);
 269
 270         lock_srbm(kgd, mec, pipe, 0, 0);
 271
 272         WREG32(mmCPC_INT_CNTL, CP_INT_CNTL_RING0__TIME_STAMP_INT_ENABLE_MASK |
 273                         CP_INT_CNTL_RING0__OPCODE_ERROR_INT_ENABLE_MASK);
 274
 275         unlock_srbm(kgd);
 276
 277         return 0;
 278 }
 279
 280 static inline uint32_t get_sdma_base_addr(struct cik_sdma_rlc_registers *m)
 281 {
 282         uint32_t retval;
 283
 284         retval = m->sdma_engine_id * SDMA1_REGISTER_OFFSET +
 285                         m->sdma_queue_id * KFD_CIK_SDMA_QUEUE_OFFSET;
 286
 287         pr_debug("kfd: sdma base address: 0x%x\n", retval);
 288
 289         return retval;
 290 }
 291
 292 static inline struct cik_mqd *get_mqd(void *mqd)
 293 {
 294         return (struct cik_mqd *)mqd;
 295 }
 296
 297 static inline struct cik_sdma_rlc_registers *get_sdma_mqd(void *mqd)
 298 {
 299         return (struct cik_sdma_rlc_registers *)mqd;
 300 }
 301
 302 static int kgd_hqd_load(struct kgd_dev *kgd, void *mqd, uint32_t pipe_id,
 303                         uint32_t queue_id, uint32_t __user *wptr)
 304 {
 305         struct amdgpu_device *adev = get_amdgpu_device(kgd);
 306         uint32_t wptr_shadow, is_wptr_shadow_valid;
 307         struct cik_mqd *m;
 308
 309         m = get_mqd(mqd);
 310
 311         is_wptr_shadow_valid = !get_user(wptr_shadow, wptr);
 312
 313         acquire_queue(kgd, pipe_id, queue_id);
 314         WREG32(mmCP_MQD_BASE_ADDR, m->cp_mqd_base_addr_lo);
 315         WREG32(mmCP_MQD_BASE_ADDR_HI, m->cp_mqd_base_addr_hi);
 316         WREG32(mmCP_MQD_CONTROL, m->cp_mqd_control);
 317
 318         WREG32(mmCP_HQD_PQ_BASE, m->cp_hqd_pq_base_lo);
 319         WREG32(mmCP_HQD_PQ_BASE_HI, m->cp_hqd_pq_base_hi);
 320         WREG32(mmCP_HQD_PQ_CONTROL, m->cp_hqd_pq_control);
 321
 322         WREG32(mmCP_HQD_IB_CONTROL, m->cp_hqd_ib_control);
 323         WREG32(mmCP_HQD_IB_BASE_ADDR, m->cp_hqd_ib_base_addr_lo);
 324         WREG32(mmCP_HQD_IB_BASE_ADDR_HI, m->cp_hqd_ib_base_addr_hi);
 325
 326         WREG32(mmCP_HQD_IB_RPTR, m->cp_hqd_ib_rptr);
 327
 328         WREG32(mmCP_HQD_PERSISTENT_STATE, m->cp_hqd_persistent_state);
 329         WREG32(mmCP_HQD_SEMA_CMD, m->cp_hqd_sema_cmd);
 330         WREG32(mmCP_HQD_MSG_TYPE, m->cp_hqd_msg_type);
 331
 332         WREG32(mmCP_HQD_ATOMIC0_PREOP_LO, m->cp_hqd_atomic0_preop_lo);
 333         WREG32(mmCP_HQD_ATOMIC0_PREOP_HI, m->cp_hqd_atomic0_preop_hi);
 334         WREG32(mmCP_HQD_ATOMIC1_PREOP_LO, m->cp_hqd_atomic1_preop_lo);
 335         WREG32(mmCP_HQD_ATOMIC1_PREOP_HI, m->cp_hqd_atomic1_preop_hi);
 336
 337         WREG32(mmCP_HQD_PQ_RPTR_REPORT_ADDR, m->cp_hqd_pq_rptr_report_addr_lo);
 338         WREG32(mmCP_HQD_PQ_RPTR_REPORT_ADDR_HI,
 339                         m->cp_hqd_pq_rptr_report_addr_hi);
 340
 341         WREG32(mmCP_HQD_PQ_RPTR, m->cp_hqd_pq_rptr);
 342
 343         WREG32(mmCP_HQD_PQ_WPTR_POLL_ADDR, m->cp_hqd_pq_wptr_poll_addr_lo);
 344         WREG32(mmCP_HQD_PQ_WPTR_POLL_ADDR_HI, m->cp_hqd_pq_wptr_poll_addr_hi);
 345
 346         WREG32(mmCP_HQD_PQ_DOORBELL_CONTROL, m->cp_hqd_pq_doorbell_control);
 347
 348         WREG32(mmCP_HQD_VMID, m->cp_hqd_vmid);
 349
 350         WREG32(mmCP_HQD_QUANTUM, m->cp_hqd_quantum);
 351
 352         WREG32(mmCP_HQD_PIPE_PRIORITY, m->cp_hqd_pipe_priority);
 353         WREG32(mmCP_HQD_QUEUE_PRIORITY, m->cp_hqd_queue_priority);
 354
 355         WREG32(mmCP_HQD_IQ_RPTR, m->cp_hqd_iq_rptr);
 356
 357         if (is_wptr_shadow_valid)
 358                 WREG32(mmCP_HQD_PQ_WPTR, wptr_shadow);
 359
 360         WREG32(mmCP_HQD_ACTIVE, m->cp_hqd_active);
 361         release_queue(kgd);
 362
 363         return 0;
 364 }
 365
 366 static int kgd_hqd_sdma_load(struct kgd_dev *kgd, void *mqd)
 367 {
 368         struct amdgpu_device *adev = get_amdgpu_device(kgd);
 369         struct cik_sdma_rlc_registers *m;
 370         uint32_t sdma_base_addr;
 371
 372         m = get_sdma_mqd(mqd);
 373         sdma_base_addr = get_sdma_base_addr(m);
 374
 375         WREG32(sdma_base_addr + mmSDMA0_RLC0_VIRTUAL_ADDR,
 376                         m->sdma_rlc_virtual_addr);
 377
 378         WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_BASE,
 379                         m->sdma_rlc_rb_base);
 380
 381         WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_BASE_HI,
 382                         m->sdma_rlc_rb_base_hi);
 383
 384         WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_RPTR_ADDR_LO,
 385                         m->sdma_rlc_rb_rptr_addr_lo);
 386
 387         WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_RPTR_ADDR_HI,
 388                         m->sdma_rlc_rb_rptr_addr_hi);
 389
 390         WREG32(sdma_base_addr + mmSDMA0_RLC0_DOORBELL,
 391                         m->sdma_rlc_doorbell);
 392
 393         WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_CNTL,
 394                         m->sdma_rlc_rb_cntl);
 395
 396         return 0;
 397 }
 398
 399 static bool kgd_hqd_is_occupied(struct kgd_dev *kgd, uint64_t queue_address,
 400                                 uint32_t pipe_id, uint32_t queue_id)
 401 {
 402         struct amdgpu_device *adev = get_amdgpu_device(kgd);
 403         uint32_t act;
 404         bool retval = false;
 405         uint32_t low, high;
 406
 407         acquire_queue(kgd, pipe_id, queue_id);
 408         act = RREG32(mmCP_HQD_ACTIVE);
 409         if (act) {
 410                 low = lower_32_bits(queue_address >> 8);
 411                 high = upper_32_bits(queue_address >> 8);
 412
 413                 if (low == RREG32(mmCP_HQD_PQ_BASE) &&
 414                                 high == RREG32(mmCP_HQD_PQ_BASE_HI))
 415                         retval = true;
 416         }
 417         release_queue(kgd);
 418         return retval;
 419 }
 420
 421 static bool kgd_hqd_sdma_is_occupied(struct kgd_dev *kgd, void *mqd)
 422 {
 423         struct amdgpu_device *adev = get_amdgpu_device(kgd);
 424         struct cik_sdma_rlc_registers *m;
 425         uint32_t sdma_base_addr;
 426         uint32_t sdma_rlc_rb_cntl;
 427
 428         m = get_sdma_mqd(mqd);
 429         sdma_base_addr = get_sdma_base_addr(m);
 430
 431         sdma_rlc_rb_cntl = RREG32(sdma_base_addr + mmSDMA0_RLC0_RB_CNTL);
 432
 433         if (sdma_rlc_rb_cntl & SDMA0_RLC0_RB_CNTL__RB_ENABLE_MASK)
 434                 return true;
 435
 436         return false;
 437 }
 438
 439 static int kgd_hqd_destroy(struct kgd_dev *kgd, uint32_t reset_type,
 440                                 unsigned int timeout, uint32_t pipe_id,
 441                                 uint32_t queue_id)
 442 {
 443         struct amdgpu_device *adev = get_amdgpu_device(kgd);
 444         uint32_t temp;
 445
 446         acquire_queue(kgd, pipe_id, queue_id);
 447         WREG32(mmCP_HQD_PQ_DOORBELL_CONTROL, 0);
 448
 449         WREG32(mmCP_HQD_DEQUEUE_REQUEST, reset_type);
 450
 451         while (true) {
 452                 temp = RREG32(mmCP_HQD_ACTIVE);
 453                 if (temp & CP_HQD_ACTIVE__ACTIVE_MASK)
 454                         break;
 455                 if (timeout == 0) {
 456                         pr_err("kfd: cp queue preemption time out (%dms)\n",
 457                                 temp);
 458                         release_queue(kgd);
 459                         return -ETIME;
 460                 }
 461                 msleep(20);
 462                 timeout -= 20;
 463         }
 464
 465         release_queue(kgd);
 466         return 0;
 467 }
 468
 469 static int kgd_hqd_sdma_destroy(struct kgd_dev *kgd, void *mqd,
 470                                 unsigned int timeout)
 471 {
 472         struct amdgpu_device *adev = get_amdgpu_device(kgd);
 473         struct cik_sdma_rlc_registers *m;
 474         uint32_t sdma_base_addr;
 475         uint32_t temp;
 476
 477         m = get_sdma_mqd(mqd);
 478         sdma_base_addr = get_sdma_base_addr(m);
 479
 480         temp = RREG32(sdma_base_addr + mmSDMA0_RLC0_RB_CNTL);
 481         temp = temp & ~SDMA0_RLC0_RB_CNTL__RB_ENABLE_MASK;
 482         WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_CNTL, temp);
 483
 484         while (true) {
 485                 temp = RREG32(sdma_base_addr + mmSDMA0_RLC0_CONTEXT_STATUS);
 486                 if (temp & SDMA0_STATUS_REG__RB_CMD_IDLE__SHIFT)
 487                         break;
 488                 if (timeout == 0)
 489                         return -ETIME;
 490                 msleep(20);
 491                 timeout -= 20;
 492         }
 493
 494         WREG32(sdma_base_addr + mmSDMA0_RLC0_DOORBELL, 0);
 495         WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_RPTR, 0);
 496         WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_WPTR, 0);
 497         WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_BASE, 0);
 498
 499         return 0;
 500 }
 501
 502 static int kgd_address_watch_disable(struct kgd_dev *kgd)
 503 {
 504         struct amdgpu_device *adev = get_amdgpu_device(kgd);
 505         union TCP_WATCH_CNTL_BITS cntl;
 506         unsigned int i;
 507
 508         cntl.u32All = 0;
 509
 510         cntl.bitfields.valid = 0;
 511         cntl.bitfields.mask = ADDRESS_WATCH_REG_CNTL_DEFAULT_MASK;
 512         cntl.bitfields.atc = 1;
 513
 514         /* Turning off this address until we set all the registers */
 515         for (i = 0; i < MAX_WATCH_ADDRESSES; i++)
 516                 WREG32(watchRegs[i * ADDRESS_WATCH_REG_MAX +
 517                         ADDRESS_WATCH_REG_CNTL], cntl.u32All);
 518
 519         return 0;
 520 }
 521
 522 static int kgd_address_watch_execute(struct kgd_dev *kgd,
 523                                         unsigned int watch_point_id,
 524                                         uint32_t cntl_val,
 525                                         uint32_t addr_hi,
 526                                         uint32_t addr_lo)
 527 {
 528         struct amdgpu_device *adev = get_amdgpu_device(kgd);
 529         union TCP_WATCH_CNTL_BITS cntl;
 530
 531         cntl.u32All = cntl_val;
 532
 533         /* Turning off this watch point until we set all the registers */
 534         cntl.bitfields.valid = 0;
 535         WREG32(watchRegs[watch_point_id * ADDRESS_WATCH_REG_MAX +
 536                 ADDRESS_WATCH_REG_CNTL], cntl.u32All);
 537
 538         WREG32(watchRegs[watch_point_id * ADDRESS_WATCH_REG_MAX +
 539                 ADDRESS_WATCH_REG_ADDR_HI], addr_hi);
 540
 541         WREG32(watchRegs[watch_point_id * ADDRESS_WATCH_REG_MAX +
 542                 ADDRESS_WATCH_REG_ADDR_LO], addr_lo);
 543
 544         /* Enable the watch point */
 545         cntl.bitfields.valid = 1;
 546
 547         WREG32(watchRegs[watch_point_id * ADDRESS_WATCH_REG_MAX +
 548                 ADDRESS_WATCH_REG_CNTL], cntl.u32All);
 549
 550         return 0;
 551 }
 552
 553 static int kgd_wave_control_execute(struct kgd_dev *kgd,
 554                                         uint32_t gfx_index_val,
 555                                         uint32_t sq_cmd)
 556 {
 557         struct amdgpu_device *adev = get_amdgpu_device(kgd);
 558         uint32_t data;
 559
 560         mutex_lock(&adev->grbm_idx_mutex);
 561
 562         WREG32(mmGRBM_GFX_INDEX, gfx_index_val);
 563         WREG32(mmSQ_CMD, sq_cmd);
 564
 565         /*  Restore the GRBM_GFX_INDEX register  */
 566
 567         data = GRBM_GFX_INDEX__INSTANCE_BROADCAST_WRITES_MASK |
 568                 GRBM_GFX_INDEX__SH_BROADCAST_WRITES_MASK |
 569                 GRBM_GFX_INDEX__SE_BROADCAST_WRITES_MASK;
 570
 571         WREG32(mmGRBM_GFX_INDEX, data);
 572
 573         mutex_unlock(&adev->grbm_idx_mutex);
 574
 575         return 0;
 576 }
 577
 578 static uint32_t kgd_address_watch_get_offset(struct kgd_dev *kgd,
 579                                         unsigned int watch_point_id,
 580                                         unsigned int reg_offset)
 581 {
 582         return watchRegs[watch_point_id * ADDRESS_WATCH_REG_MAX + reg_offset];
 583 }
 584
 585 static bool get_atc_vmid_pasid_mapping_valid(struct kgd_dev *kgd,
 586                                                         uint8_t vmid)
 587 {
 588         uint32_t reg;
 589         struct amdgpu_device *adev = (struct amdgpu_device *) kgd;
 590
 591         reg = RREG32(mmATC_VMID0_PASID_MAPPING + vmid);
 592         return reg & ATC_VMID0_PASID_MAPPING__VALID_MASK;
 593 }
 594
 595 static uint16_t get_atc_vmid_pasid_mapping_pasid(struct kgd_dev *kgd,
 596                                                                 uint8_t vmid)
 597 {
 598         uint32_t reg;
 599         struct amdgpu_device *adev = (struct amdgpu_device *) kgd;
 600
 601         reg = RREG32(mmATC_VMID0_PASID_MAPPING + vmid);
 602         return reg & ATC_VMID0_PASID_MAPPING__VALID_MASK;
 603 }
 604
 605 static void write_vmid_invalidate_request(struct kgd_dev *kgd, uint8_t vmid)
 606 {
 607         struct amdgpu_device *adev = (struct amdgpu_device *) kgd;
 608
 609         WREG32(mmVM_INVALIDATE_REQUEST, 1 << vmid);
 610 }
 611
 612 static uint16_t get_fw_version(struct kgd_dev *kgd, enum kgd_engine_type type)
 613 {
 614         struct amdgpu_device *adev = (struct amdgpu_device *) kgd;
 615         const union amdgpu_firmware_header *hdr;
 616
 617         BUG_ON(kgd == NULL);
 618
 619         switch (type) {
 620         case KGD_ENGINE_PFP:
 621                 hdr = (const union amdgpu_firmware_header *)
 622                                                         adev->gfx.pfp_fw->data;
 623                 break;
 624
 625         case KGD_ENGINE_ME:
 626                 hdr = (const union amdgpu_firmware_header *)
 627                                                         adev->gfx.me_fw->data;
 628                 break;
 629
 630         case KGD_ENGINE_CE:
 631                 hdr = (const union amdgpu_firmware_header *)
 632                                                         adev->gfx.ce_fw->data;
 633                 break;
 634
 635         case KGD_ENGINE_MEC1:
 636                 hdr = (const union amdgpu_firmware_header *)
 637                                                         adev->gfx.mec_fw->data;
 638                 break;
 639
 640         case KGD_ENGINE_MEC2:
 641                 hdr = (const union amdgpu_firmware_header *)
 642                                                         adev->gfx.mec2_fw->data;
 643                 break;
 644
 645         case KGD_ENGINE_RLC:
 646                 hdr = (const union amdgpu_firmware_header *)
 647                                                         adev->gfx.rlc_fw->data;
 648                 break;
 649
 650         case KGD_ENGINE_SDMA1:
 651                 hdr = (const union amdgpu_firmware_header *)
 652                                                         adev->sdma.instance[0].fw->data;
 653                 break;
 654
 655         case KGD_ENGINE_SDMA2:
 656                 hdr = (const union amdgpu_firmware_header *)
 657                                                         adev->sdma.instance[1].fw->data;
 658                 break;
 659
 660         default:
 661                 return 0;
 662         }
 663
 664         if (hdr == NULL)
 665                 return 0;
 666
 667         /* Only 12 bit in use*/
 668         return hdr->common.ucode_version;
 669 }
 670