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 <linux/module.h>
  24 #include <linux/fdtable.h>
  25 #include <linux/uaccess.h>
  26 #include <linux/firmware.h>
  27 #include <drm/drmP.h>
  28 #include "amdgpu.h"
  29 #include "amdgpu_amdkfd.h"
  30 #include "amdgpu_ucode.h"
  31 #include "gfx_v8_0.h"
  32 #include "gca/gfx_8_0_sh_mask.h"
  33 #include "gca/gfx_8_0_d.h"
  34 #include "gca/gfx_8_0_enum.h"
  35 #include "oss/oss_3_0_sh_mask.h"
  36 #include "oss/oss_3_0_d.h"
  37 #include "gmc/gmc_8_1_sh_mask.h"
  38 #include "gmc/gmc_8_1_d.h"
  39 #include "vi_structs.h"
  40 #include "vid.h"
  41
  42 enum hqd_dequeue_request_type {
  43         NO_ACTION = 0,
  44         DRAIN_PIPE,
  45         RESET_WAVES
  46 };
  47
  48 struct vi_sdma_mqd;
  49
  50 /*
  51  * Register access functions
  52  */
  53
  54 static void kgd_program_sh_mem_settings(struct kgd_dev *kgd, uint32_t vmid,
  55                 uint32_t sh_mem_config,
  56                 uint32_t sh_mem_ape1_base, uint32_t sh_mem_ape1_limit,
  57                 uint32_t sh_mem_bases);
  58 static int kgd_set_pasid_vmid_mapping(struct kgd_dev *kgd, unsigned int pasid,
  59                 unsigned int vmid);
  60 static int kgd_init_pipeline(struct kgd_dev *kgd, uint32_t pipe_id,
  61                 uint32_t hpd_size, uint64_t hpd_gpu_addr);
  62 static int kgd_init_interrupts(struct kgd_dev *kgd, uint32_t pipe_id);
  63 static int kgd_hqd_load(struct kgd_dev *kgd, void *mqd, uint32_t pipe_id,
  64                         uint32_t queue_id, uint32_t __user *wptr,
  65                         uint32_t wptr_shift, uint32_t wptr_mask,
  66                         struct mm_struct *mm);
  67 static int kgd_hqd_dump(struct kgd_dev *kgd,
  68                         uint32_t pipe_id, uint32_t queue_id,
  69                         uint32_t (**dump)[2], uint32_t *n_regs);
  70 static int kgd_hqd_sdma_load(struct kgd_dev *kgd, void *mqd,
  71                              uint32_t __user *wptr, struct mm_struct *mm);
  72 static int kgd_hqd_sdma_dump(struct kgd_dev *kgd,
  73                              uint32_t engine_id, uint32_t queue_id,
  74                              uint32_t (**dump)[2], uint32_t *n_regs);
  75 static bool kgd_hqd_is_occupied(struct kgd_dev *kgd, uint64_t queue_address,
  76                 uint32_t pipe_id, uint32_t queue_id);
  77 static bool kgd_hqd_sdma_is_occupied(struct kgd_dev *kgd, void *mqd);
  78 static int kgd_hqd_destroy(struct kgd_dev *kgd, void *mqd,
  79                                 enum kfd_preempt_type reset_type,
  80                                 unsigned int utimeout, uint32_t pipe_id,
  81                                 uint32_t queue_id);
  82 static int kgd_hqd_sdma_destroy(struct kgd_dev *kgd, void *mqd,
  83                                 unsigned int utimeout);
  84 static void write_vmid_invalidate_request(struct kgd_dev *kgd, uint8_t vmid);
  85 static int kgd_address_watch_disable(struct kgd_dev *kgd);
  86 static int kgd_address_watch_execute(struct kgd_dev *kgd,
  87                                         unsigned int watch_point_id,
  88                                         uint32_t cntl_val,
  89                                         uint32_t addr_hi,
  90                                         uint32_t addr_lo);
  91 static int kgd_wave_control_execute(struct kgd_dev *kgd,
  92                                         uint32_t gfx_index_val,
  93                                         uint32_t sq_cmd);
  94 static uint32_t kgd_address_watch_get_offset(struct kgd_dev *kgd,
  95                                         unsigned int watch_point_id,
  96                                         unsigned int reg_offset);
  97
  98 static bool get_atc_vmid_pasid_mapping_valid(struct kgd_dev *kgd,
  99                 uint8_t vmid);
 100 static uint16_t get_atc_vmid_pasid_mapping_pasid(struct kgd_dev *kgd,
 101                 uint8_t vmid);
 102 static void write_vmid_invalidate_request(struct kgd_dev *kgd, uint8_t vmid);
 103 static uint16_t get_fw_version(struct kgd_dev *kgd, enum kgd_engine_type type);
 104 static void set_scratch_backing_va(struct kgd_dev *kgd,
 105                                         uint64_t va, uint32_t vmid);
 106
 107 /* Because of REG_GET_FIELD() being used, we put this function in the
 108  * asic specific file.
 109  */
 110 static int get_tile_config(struct kgd_dev *kgd,
 111                 struct tile_config *config)
 112 {
 113         struct amdgpu_device *adev = (struct amdgpu_device *)kgd;
 114
 115         config->gb_addr_config = adev->gfx.config.gb_addr_config;
 116         config->num_banks = REG_GET_FIELD(adev->gfx.config.mc_arb_ramcfg,
 117                                 MC_ARB_RAMCFG, NOOFBANK);
 118         config->num_ranks = REG_GET_FIELD(adev->gfx.config.mc_arb_ramcfg,
 119                                 MC_ARB_RAMCFG, NOOFRANKS);
 120
 121         config->tile_config_ptr = adev->gfx.config.tile_mode_array;
 122         config->num_tile_configs =
 123                         ARRAY_SIZE(adev->gfx.config.tile_mode_array);
 124         config->macro_tile_config_ptr =
 125                         adev->gfx.config.macrotile_mode_array;
 126         config->num_macro_tile_configs =
 127                         ARRAY_SIZE(adev->gfx.config.macrotile_mode_array);
 128
 129         return 0;
 130 }
 131
 132 static const struct kfd2kgd_calls kfd2kgd = {
 133         .init_gtt_mem_allocation = alloc_gtt_mem,
 134         .free_gtt_mem = free_gtt_mem,
 135         .get_local_mem_info = get_local_mem_info,
 136         .get_gpu_clock_counter = get_gpu_clock_counter,
 137         .get_max_engine_clock_in_mhz = get_max_engine_clock_in_mhz,
 138         .alloc_pasid = amdgpu_pasid_alloc,
 139         .free_pasid = amdgpu_pasid_free,
 140         .program_sh_mem_settings = kgd_program_sh_mem_settings,
 141         .set_pasid_vmid_mapping = kgd_set_pasid_vmid_mapping,
 142         .init_pipeline = kgd_init_pipeline,
 143         .init_interrupts = kgd_init_interrupts,
 144         .hqd_load = kgd_hqd_load,
 145         .hqd_sdma_load = kgd_hqd_sdma_load,
 146         .hqd_dump = kgd_hqd_dump,
 147         .hqd_sdma_dump = kgd_hqd_sdma_dump,
 148         .hqd_is_occupied = kgd_hqd_is_occupied,
 149         .hqd_sdma_is_occupied = kgd_hqd_sdma_is_occupied,
 150         .hqd_destroy = kgd_hqd_destroy,
 151         .hqd_sdma_destroy = kgd_hqd_sdma_destroy,
 152         .address_watch_disable = kgd_address_watch_disable,
 153         .address_watch_execute = kgd_address_watch_execute,
 154         .wave_control_execute = kgd_wave_control_execute,
 155         .address_watch_get_offset = kgd_address_watch_get_offset,
 156         .get_atc_vmid_pasid_mapping_pasid =
 157                         get_atc_vmid_pasid_mapping_pasid,
 158         .get_atc_vmid_pasid_mapping_valid =
 159                         get_atc_vmid_pasid_mapping_valid,
 160         .write_vmid_invalidate_request = write_vmid_invalidate_request,
 161         .get_fw_version = get_fw_version,
 162         .set_scratch_backing_va = set_scratch_backing_va,
 163         .get_tile_config = get_tile_config,
 164         .get_cu_info = get_cu_info,
 165         .get_vram_usage = amdgpu_amdkfd_get_vram_usage
 166 };
 167
 168 struct kfd2kgd_calls *amdgpu_amdkfd_gfx_8_0_get_functions(void)
 169 {
 170         return (struct kfd2kgd_calls *)&kfd2kgd;
 171 }
 172
 173 static inline struct amdgpu_device *get_amdgpu_device(struct kgd_dev *kgd)
 174 {
 175         return (struct amdgpu_device *)kgd;
 176 }
 177
 178 static void lock_srbm(struct kgd_dev *kgd, uint32_t mec, uint32_t pipe,
 179                         uint32_t queue, uint32_t vmid)
 180 {
 181         struct amdgpu_device *adev = get_amdgpu_device(kgd);
 182         uint32_t value = PIPEID(pipe) | MEID(mec) | VMID(vmid) | QUEUEID(queue);
 183
 184         mutex_lock(&adev->srbm_mutex);
 185         WREG32(mmSRBM_GFX_CNTL, value);
 186 }
 187
 188 static void unlock_srbm(struct kgd_dev *kgd)
 189 {
 190         struct amdgpu_device *adev = get_amdgpu_device(kgd);
 191
 192         WREG32(mmSRBM_GFX_CNTL, 0);
 193         mutex_unlock(&adev->srbm_mutex);
 194 }
 195
 196 static void acquire_queue(struct kgd_dev *kgd, uint32_t pipe_id,
 197                                 uint32_t queue_id)
 198 {
 199         struct amdgpu_device *adev = get_amdgpu_device(kgd);
 200
 201         uint32_t mec = (pipe_id / adev->gfx.mec.num_pipe_per_mec) + 1;
 202         uint32_t pipe = (pipe_id % adev->gfx.mec.num_pipe_per_mec);
 203
 204         lock_srbm(kgd, mec, pipe, queue_id, 0);
 205 }
 206
 207 static void release_queue(struct kgd_dev *kgd)
 208 {
 209         unlock_srbm(kgd);
 210 }
 211
 212 static void kgd_program_sh_mem_settings(struct kgd_dev *kgd, uint32_t vmid,
 213                                         uint32_t sh_mem_config,
 214                                         uint32_t sh_mem_ape1_base,
 215                                         uint32_t sh_mem_ape1_limit,
 216                                         uint32_t sh_mem_bases)
 217 {
 218         struct amdgpu_device *adev = get_amdgpu_device(kgd);
 219
 220         lock_srbm(kgd, 0, 0, 0, vmid);
 221
 222         WREG32(mmSH_MEM_CONFIG, sh_mem_config);
 223         WREG32(mmSH_MEM_APE1_BASE, sh_mem_ape1_base);
 224         WREG32(mmSH_MEM_APE1_LIMIT, sh_mem_ape1_limit);
 225         WREG32(mmSH_MEM_BASES, sh_mem_bases);
 226
 227         unlock_srbm(kgd);
 228 }
 229
 230 static int kgd_set_pasid_vmid_mapping(struct kgd_dev *kgd, unsigned int pasid,
 231                                         unsigned int vmid)
 232 {
 233         struct amdgpu_device *adev = get_amdgpu_device(kgd);
 234
 235         /*
 236          * We have to assume that there is no outstanding mapping.
 237          * The ATC_VMID_PASID_MAPPING_UPDATE_STATUS bit could be 0 because
 238          * a mapping is in progress or because a mapping finished
 239          * and the SW cleared it.
 240          * So the protocol is to always wait & clear.
 241          */
 242         uint32_t pasid_mapping = (pasid == 0) ? 0 : (uint32_t)pasid |
 243                         ATC_VMID0_PASID_MAPPING__VALID_MASK;
 244
 245         WREG32(mmATC_VMID0_PASID_MAPPING + vmid, pasid_mapping);
 246
 247         while (!(RREG32(mmATC_VMID_PASID_MAPPING_UPDATE_STATUS) & (1U << vmid)))
 248                 cpu_relax();
 249         WREG32(mmATC_VMID_PASID_MAPPING_UPDATE_STATUS, 1U << vmid);
 250
 251         /* Mapping vmid to pasid also for IH block */
 252         WREG32(mmIH_VMID_0_LUT + vmid, pasid_mapping);
 253
 254         return 0;
 255 }
 256
 257 static int kgd_init_pipeline(struct kgd_dev *kgd, uint32_t pipe_id,
 258                                 uint32_t hpd_size, uint64_t hpd_gpu_addr)
 259 {
 260         /* amdgpu owns the per-pipe state */
 261         return 0;
 262 }
 263
 264 static int kgd_init_interrupts(struct kgd_dev *kgd, uint32_t pipe_id)
 265 {
 266         struct amdgpu_device *adev = get_amdgpu_device(kgd);
 267         uint32_t mec;
 268         uint32_t pipe;
 269
 270         mec = (pipe_id / adev->gfx.mec.num_pipe_per_mec) + 1;
 271         pipe = (pipe_id % adev->gfx.mec.num_pipe_per_mec);
 272
 273         lock_srbm(kgd, mec, pipe, 0, 0);
 274
 275         WREG32(mmCPC_INT_CNTL, CP_INT_CNTL_RING0__TIME_STAMP_INT_ENABLE_MASK);
 276
 277         unlock_srbm(kgd);
 278
 279         return 0;
 280 }
 281
 282 static inline uint32_t get_sdma_base_addr(struct vi_sdma_mqd *m)
 283 {
 284         uint32_t retval;
 285
 286         retval = m->sdma_engine_id * SDMA1_REGISTER_OFFSET +
 287                 m->sdma_queue_id * KFD_VI_SDMA_QUEUE_OFFSET;
 288         pr_debug("kfd: sdma base address: 0x%x\n", retval);
 289
 290         return retval;
 291 }
 292
 293 static inline struct vi_mqd *get_mqd(void *mqd)
 294 {
 295         return (struct vi_mqd *)mqd;
 296 }
 297
 298 static inline struct vi_sdma_mqd *get_sdma_mqd(void *mqd)
 299 {
 300         return (struct vi_sdma_mqd *)mqd;
 301 }
 302
 303 static int kgd_hqd_load(struct kgd_dev *kgd, void *mqd, uint32_t pipe_id,
 304                         uint32_t queue_id, uint32_t __user *wptr,
 305                         uint32_t wptr_shift, uint32_t wptr_mask,
 306                         struct mm_struct *mm)
 307 {
 308         struct amdgpu_device *adev = get_amdgpu_device(kgd);
 309         struct vi_mqd *m;
 310         uint32_t *mqd_hqd;
 311         uint32_t reg, wptr_val, data;
 312         bool valid_wptr = false;
 313
 314         m = get_mqd(mqd);
 315
 316         acquire_queue(kgd, pipe_id, queue_id);
 317
 318         /* HIQ is set during driver init period with vmid set to 0*/
 319         if (m->cp_hqd_vmid == 0) {
 320                 uint32_t value, mec, pipe;
 321
 322                 mec = (pipe_id / adev->gfx.mec.num_pipe_per_mec) + 1;
 323                 pipe = (pipe_id % adev->gfx.mec.num_pipe_per_mec);
 324
 325                 pr_debug("kfd: set HIQ, mec:%d, pipe:%d, queue:%d.\n",
 326                         mec, pipe, queue_id);
 327                 value = RREG32(mmRLC_CP_SCHEDULERS);
 328                 value = REG_SET_FIELD(value, RLC_CP_SCHEDULERS, scheduler1,
 329                         ((mec << 5) | (pipe << 3) | queue_id | 0x80));
 330                 WREG32(mmRLC_CP_SCHEDULERS, value);
 331         }
 332
 333         /* HQD registers extend from CP_MQD_BASE_ADDR to CP_HQD_EOP_WPTR_MEM. */
 334         mqd_hqd = &m->cp_mqd_base_addr_lo;
 335
 336         for (reg = mmCP_MQD_BASE_ADDR; reg <= mmCP_HQD_EOP_CONTROL; reg++)
 337                 WREG32(reg, mqd_hqd[reg - mmCP_MQD_BASE_ADDR]);
 338
 339         /* Tonga errata: EOP RPTR/WPTR should be left unmodified.
 340          * This is safe since EOP RPTR==WPTR for any inactive HQD
 341          * on ASICs that do not support context-save.
 342          * EOP writes/reads can start anywhere in the ring.
 343          */
 344         if (get_amdgpu_device(kgd)->asic_type != CHIP_TONGA) {
 345                 WREG32(mmCP_HQD_EOP_RPTR, m->cp_hqd_eop_rptr);
 346                 WREG32(mmCP_HQD_EOP_WPTR, m->cp_hqd_eop_wptr);
 347                 WREG32(mmCP_HQD_EOP_WPTR_MEM, m->cp_hqd_eop_wptr_mem);
 348         }
 349
 350         for (reg = mmCP_HQD_EOP_EVENTS; reg <= mmCP_HQD_ERROR; reg++)
 351                 WREG32(reg, mqd_hqd[reg - mmCP_MQD_BASE_ADDR]);
 352
 353         /* Copy userspace write pointer value to register.
 354          * Activate doorbell logic to monitor subsequent changes.
 355          */
 356         data = REG_SET_FIELD(m->cp_hqd_pq_doorbell_control,
 357                              CP_HQD_PQ_DOORBELL_CONTROL, DOORBELL_EN, 1);
 358         WREG32(mmCP_HQD_PQ_DOORBELL_CONTROL, data);
 359
 360         /* read_user_ptr may take the mm->mmap_sem.
 361          * release srbm_mutex to avoid circular dependency between
 362          * srbm_mutex->mm_sem->reservation_ww_class_mutex->srbm_mutex.
 363          */
 364         release_queue(kgd);
 365         valid_wptr = read_user_wptr(mm, wptr, wptr_val);
 366         acquire_queue(kgd, pipe_id, queue_id);
 367         if (valid_wptr)
 368                 WREG32(mmCP_HQD_PQ_WPTR, (wptr_val << wptr_shift) & wptr_mask);
 369
 370         data = REG_SET_FIELD(m->cp_hqd_active, CP_HQD_ACTIVE, ACTIVE, 1);
 371         WREG32(mmCP_HQD_ACTIVE, data);
 372
 373         release_queue(kgd);
 374
 375         return 0;
 376 }
 377
 378 static int kgd_hqd_dump(struct kgd_dev *kgd,
 379                         uint32_t pipe_id, uint32_t queue_id,
 380                         uint32_t (**dump)[2], uint32_t *n_regs)
 381 {
 382         struct amdgpu_device *adev = get_amdgpu_device(kgd);
 383         uint32_t i = 0, reg;
 384 #define HQD_N_REGS (54+4)
 385 #define DUMP_REG(addr) do {                             \
 386                 if (WARN_ON_ONCE(i >= HQD_N_REGS))      \
 387                         break;                          \
 388                 (*dump)[i][0] = (addr) << 2;            \
 389                 (*dump)[i++][1] = RREG32(addr);         \
 390         } while (0)
 391
 392         *dump = kmalloc(HQD_N_REGS*2*sizeof(uint32_t), GFP_KERNEL);
 393         if (*dump == NULL)
 394                 return -ENOMEM;
 395
 396         acquire_queue(kgd, pipe_id, queue_id);
 397
 398         DUMP_REG(mmCOMPUTE_STATIC_THREAD_MGMT_SE0);
 399         DUMP_REG(mmCOMPUTE_STATIC_THREAD_MGMT_SE1);
 400         DUMP_REG(mmCOMPUTE_STATIC_THREAD_MGMT_SE2);
 401         DUMP_REG(mmCOMPUTE_STATIC_THREAD_MGMT_SE3);
 402
 403         for (reg = mmCP_MQD_BASE_ADDR; reg <= mmCP_HQD_EOP_DONES; reg++)
 404                 DUMP_REG(reg);
 405
 406         release_queue(kgd);
 407
 408         WARN_ON_ONCE(i != HQD_N_REGS);
 409         *n_regs = i;
 410
 411         return 0;
 412 }
 413
 414 static int kgd_hqd_sdma_load(struct kgd_dev *kgd, void *mqd,
 415                              uint32_t __user *wptr, struct mm_struct *mm)
 416 {
 417         struct amdgpu_device *adev = get_amdgpu_device(kgd);
 418         struct vi_sdma_mqd *m;
 419         unsigned long end_jiffies;
 420         uint32_t sdma_base_addr;
 421         uint32_t data;
 422
 423         m = get_sdma_mqd(mqd);
 424         sdma_base_addr = get_sdma_base_addr(m);
 425         WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_CNTL,
 426                 m->sdmax_rlcx_rb_cntl & (~SDMA0_RLC0_RB_CNTL__RB_ENABLE_MASK));
 427
 428         end_jiffies = msecs_to_jiffies(2000) + jiffies;
 429         while (true) {
 430                 data = RREG32(sdma_base_addr + mmSDMA0_RLC0_CONTEXT_STATUS);
 431                 if (data & SDMA0_RLC0_CONTEXT_STATUS__IDLE_MASK)
 432                         break;
 433                 if (time_after(jiffies, end_jiffies))
 434                         return -ETIME;
 435                 usleep_range(500, 1000);
 436         }
 437         if (m->sdma_engine_id) {
 438                 data = RREG32(mmSDMA1_GFX_CONTEXT_CNTL);
 439                 data = REG_SET_FIELD(data, SDMA1_GFX_CONTEXT_CNTL,
 440                                 RESUME_CTX, 0);
 441                 WREG32(mmSDMA1_GFX_CONTEXT_CNTL, data);
 442         } else {
 443                 data = RREG32(mmSDMA0_GFX_CONTEXT_CNTL);
 444                 data = REG_SET_FIELD(data, SDMA0_GFX_CONTEXT_CNTL,
 445                                 RESUME_CTX, 0);
 446                 WREG32(mmSDMA0_GFX_CONTEXT_CNTL, data);
 447         }
 448
 449         data = REG_SET_FIELD(m->sdmax_rlcx_doorbell, SDMA0_RLC0_DOORBELL,
 450                              ENABLE, 1);
 451         WREG32(sdma_base_addr + mmSDMA0_RLC0_DOORBELL, data);
 452         WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_RPTR, m->sdmax_rlcx_rb_rptr);
 453
 454         if (read_user_wptr(mm, wptr, data))
 455                 WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_WPTR, data);
 456         else
 457                 WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_WPTR,
 458                        m->sdmax_rlcx_rb_rptr);
 459
 460         WREG32(sdma_base_addr + mmSDMA0_RLC0_VIRTUAL_ADDR,
 461                                 m->sdmax_rlcx_virtual_addr);
 462         WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_BASE, m->sdmax_rlcx_rb_base);
 463         WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_BASE_HI,
 464                         m->sdmax_rlcx_rb_base_hi);
 465         WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_RPTR_ADDR_LO,
 466                         m->sdmax_rlcx_rb_rptr_addr_lo);
 467         WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_RPTR_ADDR_HI,
 468                         m->sdmax_rlcx_rb_rptr_addr_hi);
 469
 470         data = REG_SET_FIELD(m->sdmax_rlcx_rb_cntl, SDMA0_RLC0_RB_CNTL,
 471                              RB_ENABLE, 1);
 472         WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_CNTL, data);
 473
 474         return 0;
 475 }
 476
 477 static int kgd_hqd_sdma_dump(struct kgd_dev *kgd,
 478                              uint32_t engine_id, uint32_t queue_id,
 479                              uint32_t (**dump)[2], uint32_t *n_regs)
 480 {
 481         struct amdgpu_device *adev = get_amdgpu_device(kgd);
 482         uint32_t sdma_offset = engine_id * SDMA1_REGISTER_OFFSET +
 483                 queue_id * KFD_VI_SDMA_QUEUE_OFFSET;
 484         uint32_t i = 0, reg;
 485 #undef HQD_N_REGS
 486 #define HQD_N_REGS (19+4+2+3+7)
 487
 488         *dump = kmalloc(HQD_N_REGS*2*sizeof(uint32_t), GFP_KERNEL);
 489         if (*dump == NULL)
 490                 return -ENOMEM;
 491
 492         for (reg = mmSDMA0_RLC0_RB_CNTL; reg <= mmSDMA0_RLC0_DOORBELL; reg++)
 493                 DUMP_REG(sdma_offset + reg);
 494         for (reg = mmSDMA0_RLC0_VIRTUAL_ADDR; reg <= mmSDMA0_RLC0_WATERMARK;
 495              reg++)
 496                 DUMP_REG(sdma_offset + reg);
 497         for (reg = mmSDMA0_RLC0_CSA_ADDR_LO; reg <= mmSDMA0_RLC0_CSA_ADDR_HI;
 498              reg++)
 499                 DUMP_REG(sdma_offset + reg);
 500         for (reg = mmSDMA0_RLC0_IB_SUB_REMAIN; reg <= mmSDMA0_RLC0_DUMMY_REG;
 501              reg++)
 502                 DUMP_REG(sdma_offset + reg);
 503         for (reg = mmSDMA0_RLC0_MIDCMD_DATA0; reg <= mmSDMA0_RLC0_MIDCMD_CNTL;
 504              reg++)
 505                 DUMP_REG(sdma_offset + reg);
 506
 507         WARN_ON_ONCE(i != HQD_N_REGS);
 508         *n_regs = i;
 509
 510         return 0;
 511 }
 512
 513 static bool kgd_hqd_is_occupied(struct kgd_dev *kgd, uint64_t queue_address,
 514                                 uint32_t pipe_id, uint32_t queue_id)
 515 {
 516         struct amdgpu_device *adev = get_amdgpu_device(kgd);
 517         uint32_t act;
 518         bool retval = false;
 519         uint32_t low, high;
 520
 521         acquire_queue(kgd, pipe_id, queue_id);
 522         act = RREG32(mmCP_HQD_ACTIVE);
 523         if (act) {
 524                 low = lower_32_bits(queue_address >> 8);
 525                 high = upper_32_bits(queue_address >> 8);
 526
 527                 if (low == RREG32(mmCP_HQD_PQ_BASE) &&
 528                                 high == RREG32(mmCP_HQD_PQ_BASE_HI))
 529                         retval = true;
 530         }
 531         release_queue(kgd);
 532         return retval;
 533 }
 534
 535 static bool kgd_hqd_sdma_is_occupied(struct kgd_dev *kgd, void *mqd)
 536 {
 537         struct amdgpu_device *adev = get_amdgpu_device(kgd);
 538         struct vi_sdma_mqd *m;
 539         uint32_t sdma_base_addr;
 540         uint32_t sdma_rlc_rb_cntl;
 541
 542         m = get_sdma_mqd(mqd);
 543         sdma_base_addr = get_sdma_base_addr(m);
 544
 545         sdma_rlc_rb_cntl = RREG32(sdma_base_addr + mmSDMA0_RLC0_RB_CNTL);
 546
 547         if (sdma_rlc_rb_cntl & SDMA0_RLC0_RB_CNTL__RB_ENABLE_MASK)
 548                 return true;
 549
 550         return false;
 551 }
 552
 553 static int kgd_hqd_destroy(struct kgd_dev *kgd, void *mqd,
 554                                 enum kfd_preempt_type reset_type,
 555                                 unsigned int utimeout, uint32_t pipe_id,
 556                                 uint32_t queue_id)
 557 {
 558         struct amdgpu_device *adev = get_amdgpu_device(kgd);
 559         uint32_t temp;
 560         enum hqd_dequeue_request_type type;
 561         unsigned long flags, end_jiffies;
 562         int retry;
 563         struct vi_mqd *m = get_mqd(mqd);
 564
 565         acquire_queue(kgd, pipe_id, queue_id);
 566
 567         if (m->cp_hqd_vmid == 0)
 568                 WREG32_FIELD(RLC_CP_SCHEDULERS, scheduler1, 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 vi_sdma_mqd *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_RLC0_CONTEXT_STATUS__IDLE_MASK)
 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->sdmax_rlcx_rb_rptr = RREG32(sdma_base_addr + mmSDMA0_RLC0_RB_RPTR);
 686
 687         return 0;
 688 }
 689
 690 static bool get_atc_vmid_pasid_mapping_valid(struct kgd_dev *kgd,
 691                                                         uint8_t vmid)
 692 {
 693         uint32_t reg;
 694         struct amdgpu_device *adev = (struct amdgpu_device *) kgd;
 695
 696         reg = RREG32(mmATC_VMID0_PASID_MAPPING + vmid);
 697         return reg & ATC_VMID0_PASID_MAPPING__VALID_MASK;
 698 }
 699
 700 static uint16_t get_atc_vmid_pasid_mapping_pasid(struct kgd_dev *kgd,
 701                                                                 uint8_t vmid)
 702 {
 703         uint32_t reg;
 704         struct amdgpu_device *adev = (struct amdgpu_device *) kgd;
 705
 706         reg = RREG32(mmATC_VMID0_PASID_MAPPING + vmid);
 707         return reg & ATC_VMID0_PASID_MAPPING__VALID_MASK;
 708 }
 709
 710 static void write_vmid_invalidate_request(struct kgd_dev *kgd, uint8_t vmid)
 711 {
 712         struct amdgpu_device *adev = (struct amdgpu_device *) kgd;
 713
 714         WREG32(mmVM_INVALIDATE_REQUEST, 1 << vmid);
 715 }
 716
 717 static int kgd_address_watch_disable(struct kgd_dev *kgd)
 718 {
 719         return 0;
 720 }
 721
 722 static int kgd_address_watch_execute(struct kgd_dev *kgd,
 723                                         unsigned int watch_point_id,
 724                                         uint32_t cntl_val,
 725                                         uint32_t addr_hi,
 726                                         uint32_t addr_lo)
 727 {
 728         return 0;
 729 }
 730
 731 static int kgd_wave_control_execute(struct kgd_dev *kgd,
 732                                         uint32_t gfx_index_val,
 733                                         uint32_t sq_cmd)
 734 {
 735         struct amdgpu_device *adev = get_amdgpu_device(kgd);
 736         uint32_t data = 0;
 737
 738         mutex_lock(&adev->grbm_idx_mutex);
 739
 740         WREG32(mmGRBM_GFX_INDEX, gfx_index_val);
 741         WREG32(mmSQ_CMD, sq_cmd);
 742
 743         data = REG_SET_FIELD(data, GRBM_GFX_INDEX,
 744                 INSTANCE_BROADCAST_WRITES, 1);
 745         data = REG_SET_FIELD(data, GRBM_GFX_INDEX,
 746                 SH_BROADCAST_WRITES, 1);
 747         data = REG_SET_FIELD(data, GRBM_GFX_INDEX,
 748                 SE_BROADCAST_WRITES, 1);
 749
 750         WREG32(mmGRBM_GFX_INDEX, data);
 751         mutex_unlock(&adev->grbm_idx_mutex);
 752
 753         return 0;
 754 }
 755
 756 static uint32_t kgd_address_watch_get_offset(struct kgd_dev *kgd,
 757                                         unsigned int watch_point_id,
 758                                         unsigned int reg_offset)
 759 {
 760         return 0;
 761 }
 762
 763 static void set_scratch_backing_va(struct kgd_dev *kgd,
 764                                         uint64_t va, uint32_t vmid)
 765 {
 766         struct amdgpu_device *adev = (struct amdgpu_device *) kgd;
 767
 768         lock_srbm(kgd, 0, 0, 0, vmid);
 769         WREG32(mmSH_HIDDEN_PRIVATE_BASE_VMID, va);
 770         unlock_srbm(kgd);
 771 }
 772
 773 static uint16_t get_fw_version(struct kgd_dev *kgd, enum kgd_engine_type type)
 774 {
 775         struct amdgpu_device *adev = (struct amdgpu_device *) kgd;
 776         const union amdgpu_firmware_header *hdr;
 777
 778         BUG_ON(kgd == NULL);
 779
 780         switch (type) {
 781         case KGD_ENGINE_PFP:
 782                 hdr = (const union amdgpu_firmware_header *)
 783                                                 adev->gfx.pfp_fw->data;
 784                 break;
 785
 786         case KGD_ENGINE_ME:
 787                 hdr = (const union amdgpu_firmware_header *)
 788                                                 adev->gfx.me_fw->data;
 789                 break;
 790
 791         case KGD_ENGINE_CE:
 792                 hdr = (const union amdgpu_firmware_header *)
 793                                                 adev->gfx.ce_fw->data;
 794                 break;
 795
 796         case KGD_ENGINE_MEC1:
 797                 hdr = (const union amdgpu_firmware_header *)
 798                                                 adev->gfx.mec_fw->data;
 799                 break;
 800
 801         case KGD_ENGINE_MEC2:
 802                 hdr = (const union amdgpu_firmware_header *)
 803                                                 adev->gfx.mec2_fw->data;
 804                 break;
 805
 806         case KGD_ENGINE_RLC:
 807                 hdr = (const union amdgpu_firmware_header *)
 808                                                 adev->gfx.rlc_fw->data;
 809                 break;
 810
 811         case KGD_ENGINE_SDMA1:
 812                 hdr = (const union amdgpu_firmware_header *)
 813                                                 adev->sdma.instance[0].fw->data;
 814                 break;
 815
 816         case KGD_ENGINE_SDMA2:
 817                 hdr = (const union amdgpu_firmware_header *)
 818                                                 adev->sdma.instance[1].fw->data;
 819                 break;
 820
 821         default:
 822                 return 0;
 823         }
 824
 825         if (hdr == NULL)
 826                 return 0;
 827
 828         /* Only 12 bit in use*/
 829         return hdr->common.ucode_version;
 830 }