drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v8.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 "amdgpu.h"
  24 #include "amdgpu_amdkfd.h"
  25 #include "gfx_v8_0.h"
  26 #include "gca/gfx_8_0_sh_mask.h"
  27 #include "gca/gfx_8_0_d.h"
  28 #include "gca/gfx_8_0_enum.h"
  29 #include "oss/oss_3_0_sh_mask.h"
  30 #include "oss/oss_3_0_d.h"
  31 #include "gmc/gmc_8_1_sh_mask.h"
  32 #include "gmc/gmc_8_1_d.h"
  33 #include "vi_structs.h"
  34 #include "vid.h"
  35
  36 enum hqd_dequeue_request_type {
  37         NO_ACTION = 0,
  38         DRAIN_PIPE,
  39         RESET_WAVES
  40 };
  41
  42 static inline struct amdgpu_device *get_amdgpu_device(struct kgd_dev *kgd)
  43 {
  44         return (struct amdgpu_device *)kgd;
  45 }
  46
  47 static void lock_srbm(struct kgd_dev *kgd, uint32_t mec, uint32_t pipe,
  48                         uint32_t queue, uint32_t vmid)
  49 {
  50         struct amdgpu_device *adev = get_amdgpu_device(kgd);
  51         uint32_t value = PIPEID(pipe) | MEID(mec) | VMID(vmid) | QUEUEID(queue);
  52
  53         mutex_lock(&adev->srbm_mutex);
  54         WREG32(mmSRBM_GFX_CNTL, value);
  55 }
  56
  57 static void unlock_srbm(struct kgd_dev *kgd)
  58 {
  59         struct amdgpu_device *adev = get_amdgpu_device(kgd);
  60
  61         WREG32(mmSRBM_GFX_CNTL, 0);
  62         mutex_unlock(&adev->srbm_mutex);
  63 }
  64
  65 static void acquire_queue(struct kgd_dev *kgd, uint32_t pipe_id,
  66                                 uint32_t queue_id)
  67 {
  68         struct amdgpu_device *adev = get_amdgpu_device(kgd);
  69
  70         uint32_t mec = (pipe_id / adev->gfx.mec.num_pipe_per_mec) + 1;
  71         uint32_t pipe = (pipe_id % adev->gfx.mec.num_pipe_per_mec);
  72
  73         lock_srbm(kgd, mec, pipe, queue_id, 0);
  74 }
  75
  76 static void release_queue(struct kgd_dev *kgd)
  77 {
  78         unlock_srbm(kgd);
  79 }
  80
  81 static void kgd_program_sh_mem_settings(struct kgd_dev *kgd, uint32_t vmid,
  82                                         uint32_t sh_mem_config,
  83                                         uint32_t sh_mem_ape1_base,
  84                                         uint32_t sh_mem_ape1_limit,
  85                                         uint32_t sh_mem_bases)
  86 {
  87         struct amdgpu_device *adev = get_amdgpu_device(kgd);
  88
  89         lock_srbm(kgd, 0, 0, 0, vmid);
  90
  91         WREG32(mmSH_MEM_CONFIG, sh_mem_config);
  92         WREG32(mmSH_MEM_APE1_BASE, sh_mem_ape1_base);
  93         WREG32(mmSH_MEM_APE1_LIMIT, sh_mem_ape1_limit);
  94         WREG32(mmSH_MEM_BASES, sh_mem_bases);
  95
  96         unlock_srbm(kgd);
  97 }
  98
  99 static int kgd_set_pasid_vmid_mapping(struct kgd_dev *kgd, u32 pasid,
 100                                         unsigned int vmid)
 101 {
 102         struct amdgpu_device *adev = get_amdgpu_device(kgd);
 103
 104         /*
 105          * We have to assume that there is no outstanding mapping.
 106          * The ATC_VMID_PASID_MAPPING_UPDATE_STATUS bit could be 0 because
 107          * a mapping is in progress or because a mapping finished
 108          * and the SW cleared it.
 109          * So the protocol is to always wait & clear.
 110          */
 111         uint32_t pasid_mapping = (pasid == 0) ? 0 : (uint32_t)pasid |
 112                         ATC_VMID0_PASID_MAPPING__VALID_MASK;
 113
 114         WREG32(mmATC_VMID0_PASID_MAPPING + vmid, pasid_mapping);
 115
 116         while (!(RREG32(mmATC_VMID_PASID_MAPPING_UPDATE_STATUS) & (1U << vmid)))
 117                 cpu_relax();
 118         WREG32(mmATC_VMID_PASID_MAPPING_UPDATE_STATUS, 1U << vmid);
 119
 120         /* Mapping vmid to pasid also for IH block */
 121         WREG32(mmIH_VMID_0_LUT + vmid, pasid_mapping);
 122
 123         return 0;
 124 }
 125
 126 static int kgd_init_interrupts(struct kgd_dev *kgd, uint32_t pipe_id)
 127 {
 128         struct amdgpu_device *adev = get_amdgpu_device(kgd);
 129         uint32_t mec;
 130         uint32_t pipe;
 131
 132         mec = (pipe_id / adev->gfx.mec.num_pipe_per_mec) + 1;
 133         pipe = (pipe_id % adev->gfx.mec.num_pipe_per_mec);
 134
 135         lock_srbm(kgd, mec, pipe, 0, 0);
 136
 137         WREG32(mmCPC_INT_CNTL, CP_INT_CNTL_RING0__TIME_STAMP_INT_ENABLE_MASK |
 138                         CP_INT_CNTL_RING0__OPCODE_ERROR_INT_ENABLE_MASK);
 139
 140         unlock_srbm(kgd);
 141
 142         return 0;
 143 }
 144
 145 static inline uint32_t get_sdma_rlc_reg_offset(struct vi_sdma_mqd *m)
 146 {
 147         uint32_t retval;
 148
 149         retval = m->sdma_engine_id * SDMA1_REGISTER_OFFSET +
 150                 m->sdma_queue_id * KFD_VI_SDMA_QUEUE_OFFSET;
 151
 152         pr_debug("RLC register offset for SDMA%d RLC%d: 0x%x\n",
 153                         m->sdma_engine_id, m->sdma_queue_id, retval);
 154
 155         return retval;
 156 }
 157
 158 static inline struct vi_mqd *get_mqd(void *mqd)
 159 {
 160         return (struct vi_mqd *)mqd;
 161 }
 162
 163 static inline struct vi_sdma_mqd *get_sdma_mqd(void *mqd)
 164 {
 165         return (struct vi_sdma_mqd *)mqd;
 166 }
 167
 168 static int kgd_hqd_load(struct kgd_dev *kgd, void *mqd, uint32_t pipe_id,
 169                         uint32_t queue_id, uint32_t __user *wptr,
 170                         uint32_t wptr_shift, uint32_t wptr_mask,
 171                         struct mm_struct *mm)
 172 {
 173         struct amdgpu_device *adev = get_amdgpu_device(kgd);
 174         struct vi_mqd *m;
 175         uint32_t *mqd_hqd;
 176         uint32_t reg, wptr_val, data;
 177         bool valid_wptr = false;
 178
 179         m = get_mqd(mqd);
 180
 181         acquire_queue(kgd, pipe_id, queue_id);
 182
 183         /* HIQ is set during driver init period with vmid set to 0*/
 184         if (m->cp_hqd_vmid == 0) {
 185                 uint32_t value, mec, pipe;
 186
 187                 mec = (pipe_id / adev->gfx.mec.num_pipe_per_mec) + 1;
 188                 pipe = (pipe_id % adev->gfx.mec.num_pipe_per_mec);
 189
 190                 pr_debug("kfd: set HIQ, mec:%d, pipe:%d, queue:%d.\n",
 191                         mec, pipe, queue_id);
 192                 value = RREG32(mmRLC_CP_SCHEDULERS);
 193                 value = REG_SET_FIELD(value, RLC_CP_SCHEDULERS, scheduler1,
 194                         ((mec << 5) | (pipe << 3) | queue_id | 0x80));
 195                 WREG32(mmRLC_CP_SCHEDULERS, value);
 196         }
 197
 198         /* HQD registers extend from CP_MQD_BASE_ADDR to CP_HQD_EOP_WPTR_MEM. */
 199         mqd_hqd = &m->cp_mqd_base_addr_lo;
 200
 201         for (reg = mmCP_MQD_BASE_ADDR; reg <= mmCP_HQD_EOP_CONTROL; reg++)
 202                 WREG32(reg, mqd_hqd[reg - mmCP_MQD_BASE_ADDR]);
 203
 204         /* Tonga errata: EOP RPTR/WPTR should be left unmodified.
 205          * This is safe since EOP RPTR==WPTR for any inactive HQD
 206          * on ASICs that do not support context-save.
 207          * EOP writes/reads can start anywhere in the ring.
 208          */
 209         if (get_amdgpu_device(kgd)->asic_type != CHIP_TONGA) {
 210                 WREG32(mmCP_HQD_EOP_RPTR, m->cp_hqd_eop_rptr);
 211                 WREG32(mmCP_HQD_EOP_WPTR, m->cp_hqd_eop_wptr);
 212                 WREG32(mmCP_HQD_EOP_WPTR_MEM, m->cp_hqd_eop_wptr_mem);
 213         }
 214
 215         for (reg = mmCP_HQD_EOP_EVENTS; reg <= mmCP_HQD_ERROR; reg++)
 216                 WREG32(reg, mqd_hqd[reg - mmCP_MQD_BASE_ADDR]);
 217
 218         /* Copy userspace write pointer value to register.
 219          * Activate doorbell logic to monitor subsequent changes.
 220          */
 221         data = REG_SET_FIELD(m->cp_hqd_pq_doorbell_control,
 222                              CP_HQD_PQ_DOORBELL_CONTROL, DOORBELL_EN, 1);
 223         WREG32(mmCP_HQD_PQ_DOORBELL_CONTROL, data);
 224
 225         /* read_user_ptr may take the mm->mmap_lock.
 226          * release srbm_mutex to avoid circular dependency between
 227          * srbm_mutex->mm_sem->reservation_ww_class_mutex->srbm_mutex.
 228          */
 229         release_queue(kgd);
 230         valid_wptr = read_user_wptr(mm, wptr, wptr_val);
 231         acquire_queue(kgd, pipe_id, queue_id);
 232         if (valid_wptr)
 233                 WREG32(mmCP_HQD_PQ_WPTR, (wptr_val << wptr_shift) & wptr_mask);
 234
 235         data = REG_SET_FIELD(m->cp_hqd_active, CP_HQD_ACTIVE, ACTIVE, 1);
 236         WREG32(mmCP_HQD_ACTIVE, data);
 237
 238         release_queue(kgd);
 239
 240         return 0;
 241 }
 242
 243 static int kgd_hqd_dump(struct kgd_dev *kgd,
 244                         uint32_t pipe_id, uint32_t queue_id,
 245                         uint32_t (**dump)[2], uint32_t *n_regs)
 246 {
 247         struct amdgpu_device *adev = get_amdgpu_device(kgd);
 248         uint32_t i = 0, reg;
 249 #define HQD_N_REGS (54+4)
 250 #define DUMP_REG(addr) do {                             \
 251                 if (WARN_ON_ONCE(i >= HQD_N_REGS))      \
 252                         break;                          \
 253                 (*dump)[i][0] = (addr) << 2;            \
 254                 (*dump)[i++][1] = RREG32(addr);         \
 255         } while (0)
 256
 257         *dump = kmalloc_array(HQD_N_REGS * 2, sizeof(uint32_t), GFP_KERNEL);
 258         if (*dump == NULL)
 259                 return -ENOMEM;
 260
 261         acquire_queue(kgd, pipe_id, queue_id);
 262
 263         DUMP_REG(mmCOMPUTE_STATIC_THREAD_MGMT_SE0);
 264         DUMP_REG(mmCOMPUTE_STATIC_THREAD_MGMT_SE1);
 265         DUMP_REG(mmCOMPUTE_STATIC_THREAD_MGMT_SE2);
 266         DUMP_REG(mmCOMPUTE_STATIC_THREAD_MGMT_SE3);
 267
 268         for (reg = mmCP_MQD_BASE_ADDR; reg <= mmCP_HQD_EOP_DONES; reg++)
 269                 DUMP_REG(reg);
 270
 271         release_queue(kgd);
 272
 273         WARN_ON_ONCE(i != HQD_N_REGS);
 274         *n_regs = i;
 275
 276         return 0;
 277 }
 278
 279 static int kgd_hqd_sdma_load(struct kgd_dev *kgd, void *mqd,
 280                              uint32_t __user *wptr, struct mm_struct *mm)
 281 {
 282         struct amdgpu_device *adev = get_amdgpu_device(kgd);
 283         struct vi_sdma_mqd *m;
 284         unsigned long end_jiffies;
 285         uint32_t sdma_rlc_reg_offset;
 286         uint32_t data;
 287
 288         m = get_sdma_mqd(mqd);
 289         sdma_rlc_reg_offset = get_sdma_rlc_reg_offset(m);
 290         WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_CNTL,
 291                 m->sdmax_rlcx_rb_cntl & (~SDMA0_RLC0_RB_CNTL__RB_ENABLE_MASK));
 292
 293         end_jiffies = msecs_to_jiffies(2000) + jiffies;
 294         while (true) {
 295                 data = RREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_CONTEXT_STATUS);
 296                 if (data & SDMA0_RLC0_CONTEXT_STATUS__IDLE_MASK)
 297                         break;
 298                 if (time_after(jiffies, end_jiffies)) {
 299                         pr_err("SDMA RLC not idle in %s\n", __func__);
 300                         return -ETIME;
 301                 }
 302                 usleep_range(500, 1000);
 303         }
 304
 305         data = REG_SET_FIELD(m->sdmax_rlcx_doorbell, SDMA0_RLC0_DOORBELL,
 306                              ENABLE, 1);
 307         WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_DOORBELL, data);
 308         WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_RPTR,
 309                                 m->sdmax_rlcx_rb_rptr);
 310
 311         if (read_user_wptr(mm, wptr, data))
 312                 WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_WPTR, data);
 313         else
 314                 WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_WPTR,
 315                        m->sdmax_rlcx_rb_rptr);
 316
 317         WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_VIRTUAL_ADDR,
 318                                 m->sdmax_rlcx_virtual_addr);
 319         WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_BASE, m->sdmax_rlcx_rb_base);
 320         WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_BASE_HI,
 321                         m->sdmax_rlcx_rb_base_hi);
 322         WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_RPTR_ADDR_LO,
 323                         m->sdmax_rlcx_rb_rptr_addr_lo);
 324         WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_RPTR_ADDR_HI,
 325                         m->sdmax_rlcx_rb_rptr_addr_hi);
 326
 327         data = REG_SET_FIELD(m->sdmax_rlcx_rb_cntl, SDMA0_RLC0_RB_CNTL,
 328                              RB_ENABLE, 1);
 329         WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_CNTL, data);
 330
 331         return 0;
 332 }
 333
 334 static int kgd_hqd_sdma_dump(struct kgd_dev *kgd,
 335                              uint32_t engine_id, uint32_t queue_id,
 336                              uint32_t (**dump)[2], uint32_t *n_regs)
 337 {
 338         struct amdgpu_device *adev = get_amdgpu_device(kgd);
 339         uint32_t sdma_offset = engine_id * SDMA1_REGISTER_OFFSET +
 340                 queue_id * KFD_VI_SDMA_QUEUE_OFFSET;
 341         uint32_t i = 0, reg;
 342 #undef HQD_N_REGS
 343 #define HQD_N_REGS (19+4+2+3+7)
 344
 345         *dump = kmalloc_array(HQD_N_REGS * 2, sizeof(uint32_t), GFP_KERNEL);
 346         if (*dump == NULL)
 347                 return -ENOMEM;
 348
 349         for (reg = mmSDMA0_RLC0_RB_CNTL; reg <= mmSDMA0_RLC0_DOORBELL; reg++)
 350                 DUMP_REG(sdma_offset + reg);
 351         for (reg = mmSDMA0_RLC0_VIRTUAL_ADDR; reg <= mmSDMA0_RLC0_WATERMARK;
 352              reg++)
 353                 DUMP_REG(sdma_offset + reg);
 354         for (reg = mmSDMA0_RLC0_CSA_ADDR_LO; reg <= mmSDMA0_RLC0_CSA_ADDR_HI;
 355              reg++)
 356                 DUMP_REG(sdma_offset + reg);
 357         for (reg = mmSDMA0_RLC0_IB_SUB_REMAIN; reg <= mmSDMA0_RLC0_DUMMY_REG;
 358              reg++)
 359                 DUMP_REG(sdma_offset + reg);
 360         for (reg = mmSDMA0_RLC0_MIDCMD_DATA0; reg <= mmSDMA0_RLC0_MIDCMD_CNTL;
 361              reg++)
 362                 DUMP_REG(sdma_offset + reg);
 363
 364         WARN_ON_ONCE(i != HQD_N_REGS);
 365         *n_regs = i;
 366
 367         return 0;
 368 }
 369
 370 static bool kgd_hqd_is_occupied(struct kgd_dev *kgd, uint64_t queue_address,
 371                                 uint32_t pipe_id, uint32_t queue_id)
 372 {
 373         struct amdgpu_device *adev = get_amdgpu_device(kgd);
 374         uint32_t act;
 375         bool retval = false;
 376         uint32_t low, high;
 377
 378         acquire_queue(kgd, pipe_id, queue_id);
 379         act = RREG32(mmCP_HQD_ACTIVE);
 380         if (act) {
 381                 low = lower_32_bits(queue_address >> 8);
 382                 high = upper_32_bits(queue_address >> 8);
 383
 384                 if (low == RREG32(mmCP_HQD_PQ_BASE) &&
 385                                 high == RREG32(mmCP_HQD_PQ_BASE_HI))
 386                         retval = true;
 387         }
 388         release_queue(kgd);
 389         return retval;
 390 }
 391
 392 static bool kgd_hqd_sdma_is_occupied(struct kgd_dev *kgd, void *mqd)
 393 {
 394         struct amdgpu_device *adev = get_amdgpu_device(kgd);
 395         struct vi_sdma_mqd *m;
 396         uint32_t sdma_rlc_reg_offset;
 397         uint32_t sdma_rlc_rb_cntl;
 398
 399         m = get_sdma_mqd(mqd);
 400         sdma_rlc_reg_offset = get_sdma_rlc_reg_offset(m);
 401
 402         sdma_rlc_rb_cntl = RREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_CNTL);
 403
 404         if (sdma_rlc_rb_cntl & SDMA0_RLC0_RB_CNTL__RB_ENABLE_MASK)
 405                 return true;
 406
 407         return false;
 408 }
 409
 410 static int kgd_hqd_destroy(struct kgd_dev *kgd, void *mqd,
 411                                 enum kfd_preempt_type reset_type,
 412                                 unsigned int utimeout, uint32_t pipe_id,
 413                                 uint32_t queue_id)
 414 {
 415         struct amdgpu_device *adev = get_amdgpu_device(kgd);
 416         uint32_t temp;
 417         enum hqd_dequeue_request_type type;
 418         unsigned long flags, end_jiffies;
 419         int retry;
 420         struct vi_mqd *m = get_mqd(mqd);
 421
 422         if (amdgpu_in_reset(adev))
 423                 return -EIO;
 424
 425         acquire_queue(kgd, pipe_id, queue_id);
 426
 427         if (m->cp_hqd_vmid == 0)
 428                 WREG32_FIELD(RLC_CP_SCHEDULERS, scheduler1, 0);
 429
 430         switch (reset_type) {
 431         case KFD_PREEMPT_TYPE_WAVEFRONT_DRAIN:
 432                 type = DRAIN_PIPE;
 433                 break;
 434         case KFD_PREEMPT_TYPE_WAVEFRONT_RESET:
 435                 type = RESET_WAVES;
 436                 break;
 437         default:
 438                 type = DRAIN_PIPE;
 439                 break;
 440         }
 441
 442         /* Workaround: If IQ timer is active and the wait time is close to or
 443          * equal to 0, dequeueing is not safe. Wait until either the wait time
 444          * is larger or timer is cleared. Also, ensure that IQ_REQ_PEND is
 445          * cleared before continuing. Also, ensure wait times are set to at
 446          * least 0x3.
 447          */
 448         local_irq_save(flags);
 449         preempt_disable();
 450         retry = 5000; /* wait for 500 usecs at maximum */
 451         while (true) {
 452                 temp = RREG32(mmCP_HQD_IQ_TIMER);
 453                 if (REG_GET_FIELD(temp, CP_HQD_IQ_TIMER, PROCESSING_IQ)) {
 454                         pr_debug("HW is processing IQ\n");
 455                         goto loop;
 456                 }
 457                 if (REG_GET_FIELD(temp, CP_HQD_IQ_TIMER, ACTIVE)) {
 458                         if (REG_GET_FIELD(temp, CP_HQD_IQ_TIMER, RETRY_TYPE)
 459                                         == 3) /* SEM-rearm is safe */
 460                                 break;
 461                         /* Wait time 3 is safe for CP, but our MMIO read/write
 462                          * time is close to 1 microsecond, so check for 10 to
 463                          * leave more buffer room
 464                          */
 465                         if (REG_GET_FIELD(temp, CP_HQD_IQ_TIMER, WAIT_TIME)
 466                                         >= 10)
 467                                 break;
 468                         pr_debug("IQ timer is active\n");
 469                 } else
 470                         break;
 471 loop:
 472                 if (!retry) {
 473                         pr_err("CP HQD IQ timer status time out\n");
 474                         break;
 475                 }
 476                 ndelay(100);
 477                 --retry;
 478         }
 479         retry = 1000;
 480         while (true) {
 481                 temp = RREG32(mmCP_HQD_DEQUEUE_REQUEST);
 482                 if (!(temp & CP_HQD_DEQUEUE_REQUEST__IQ_REQ_PEND_MASK))
 483                         break;
 484                 pr_debug("Dequeue request is pending\n");
 485
 486                 if (!retry) {
 487                         pr_err("CP HQD dequeue request time out\n");
 488                         break;
 489                 }
 490                 ndelay(100);
 491                 --retry;
 492         }
 493         local_irq_restore(flags);
 494         preempt_enable();
 495
 496         WREG32(mmCP_HQD_DEQUEUE_REQUEST, type);
 497
 498         end_jiffies = (utimeout * HZ / 1000) + jiffies;
 499         while (true) {
 500                 temp = RREG32(mmCP_HQD_ACTIVE);
 501                 if (!(temp & CP_HQD_ACTIVE__ACTIVE_MASK))
 502                         break;
 503                 if (time_after(jiffies, end_jiffies)) {
 504                         pr_err("cp queue preemption time out.\n");
 505                         release_queue(kgd);
 506                         return -ETIME;
 507                 }
 508                 usleep_range(500, 1000);
 509         }
 510
 511         release_queue(kgd);
 512         return 0;
 513 }
 514
 515 static int kgd_hqd_sdma_destroy(struct kgd_dev *kgd, void *mqd,
 516                                 unsigned int utimeout)
 517 {
 518         struct amdgpu_device *adev = get_amdgpu_device(kgd);
 519         struct vi_sdma_mqd *m;
 520         uint32_t sdma_rlc_reg_offset;
 521         uint32_t temp;
 522         unsigned long end_jiffies = (utimeout * HZ / 1000) + jiffies;
 523
 524         m = get_sdma_mqd(mqd);
 525         sdma_rlc_reg_offset = get_sdma_rlc_reg_offset(m);
 526
 527         temp = RREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_CNTL);
 528         temp = temp & ~SDMA0_RLC0_RB_CNTL__RB_ENABLE_MASK;
 529         WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_CNTL, temp);
 530
 531         while (true) {
 532                 temp = RREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_CONTEXT_STATUS);
 533                 if (temp & SDMA0_RLC0_CONTEXT_STATUS__IDLE_MASK)
 534                         break;
 535                 if (time_after(jiffies, end_jiffies)) {
 536                         pr_err("SDMA RLC not idle in %s\n", __func__);
 537                         return -ETIME;
 538                 }
 539                 usleep_range(500, 1000);
 540         }
 541
 542         WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_DOORBELL, 0);
 543         WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_CNTL,
 544                 RREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_CNTL) |
 545                 SDMA0_RLC0_RB_CNTL__RB_ENABLE_MASK);
 546
 547         m->sdmax_rlcx_rb_rptr = RREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_RPTR);
 548
 549         return 0;
 550 }
 551
 552 static bool get_atc_vmid_pasid_mapping_info(struct kgd_dev *kgd,
 553                                         uint8_t vmid, uint16_t *p_pasid)
 554 {
 555         uint32_t value;
 556         struct amdgpu_device *adev = (struct amdgpu_device *) kgd;
 557
 558         value = RREG32(mmATC_VMID0_PASID_MAPPING + vmid);
 559         *p_pasid = value & ATC_VMID0_PASID_MAPPING__PASID_MASK;
 560
 561         return !!(value & ATC_VMID0_PASID_MAPPING__VALID_MASK);
 562 }
 563
 564 static int kgd_address_watch_disable(struct kgd_dev *kgd)
 565 {
 566         return 0;
 567 }
 568
 569 static int kgd_address_watch_execute(struct kgd_dev *kgd,
 570                                         unsigned int watch_point_id,
 571                                         uint32_t cntl_val,
 572                                         uint32_t addr_hi,
 573                                         uint32_t addr_lo)
 574 {
 575         return 0;
 576 }
 577
 578 static int kgd_wave_control_execute(struct kgd_dev *kgd,
 579                                         uint32_t gfx_index_val,
 580                                         uint32_t sq_cmd)
 581 {
 582         struct amdgpu_device *adev = get_amdgpu_device(kgd);
 583         uint32_t data = 0;
 584
 585         mutex_lock(&adev->grbm_idx_mutex);
 586
 587         WREG32(mmGRBM_GFX_INDEX, gfx_index_val);
 588         WREG32(mmSQ_CMD, sq_cmd);
 589
 590         data = REG_SET_FIELD(data, GRBM_GFX_INDEX,
 591                 INSTANCE_BROADCAST_WRITES, 1);
 592         data = REG_SET_FIELD(data, GRBM_GFX_INDEX,
 593                 SH_BROADCAST_WRITES, 1);
 594         data = REG_SET_FIELD(data, GRBM_GFX_INDEX,
 595                 SE_BROADCAST_WRITES, 1);
 596
 597         WREG32(mmGRBM_GFX_INDEX, data);
 598         mutex_unlock(&adev->grbm_idx_mutex);
 599
 600         return 0;
 601 }
 602
 603 static uint32_t kgd_address_watch_get_offset(struct kgd_dev *kgd,
 604                                         unsigned int watch_point_id,
 605                                         unsigned int reg_offset)
 606 {
 607         return 0;
 608 }
 609
 610 static void set_scratch_backing_va(struct kgd_dev *kgd,
 611                                         uint64_t va, uint32_t vmid)
 612 {
 613         struct amdgpu_device *adev = (struct amdgpu_device *) kgd;
 614
 615         lock_srbm(kgd, 0, 0, 0, vmid);
 616         WREG32(mmSH_HIDDEN_PRIVATE_BASE_VMID, va);
 617         unlock_srbm(kgd);
 618 }
 619
 620 static void set_vm_context_page_table_base(struct kgd_dev *kgd, uint32_t vmid,
 621                 uint64_t page_table_base)
 622 {
 623         struct amdgpu_device *adev = get_amdgpu_device(kgd);
 624
 625         if (!amdgpu_amdkfd_is_kfd_vmid(adev, vmid)) {
 626                 pr_err("trying to set page table base for wrong VMID\n");
 627                 return;
 628         }
 629         WREG32(mmVM_CONTEXT8_PAGE_TABLE_BASE_ADDR + vmid - 8,
 630                         lower_32_bits(page_table_base));
 631 }
 632
 633 const struct kfd2kgd_calls gfx_v8_kfd2kgd = {
 634         .program_sh_mem_settings = kgd_program_sh_mem_settings,
 635         .set_pasid_vmid_mapping = kgd_set_pasid_vmid_mapping,
 636         .init_interrupts = kgd_init_interrupts,
 637         .hqd_load = kgd_hqd_load,
 638         .hqd_sdma_load = kgd_hqd_sdma_load,
 639         .hqd_dump = kgd_hqd_dump,
 640         .hqd_sdma_dump = kgd_hqd_sdma_dump,
 641         .hqd_is_occupied = kgd_hqd_is_occupied,
 642         .hqd_sdma_is_occupied = kgd_hqd_sdma_is_occupied,
 643         .hqd_destroy = kgd_hqd_destroy,
 644         .hqd_sdma_destroy = kgd_hqd_sdma_destroy,
 645         .address_watch_disable = kgd_address_watch_disable,
 646         .address_watch_execute = kgd_address_watch_execute,
 647         .wave_control_execute = kgd_wave_control_execute,
 648         .address_watch_get_offset = kgd_address_watch_get_offset,
 649         .get_atc_vmid_pasid_mapping_info =
 650                         get_atc_vmid_pasid_mapping_info,
 651         .set_scratch_backing_va = set_scratch_backing_va,
 652         .set_vm_context_page_table_base = set_vm_context_page_table_base,
 653 };