drivers/gpu/drm/amd/amdgpu/sdma_v5_2.c

   1 /*
   2  * Copyright 2019 Advanced Micro Devices, Inc.
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice shall be included in
  12  * all copies or substantial portions of the Software.
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  20  * OTHER DEALINGS IN THE SOFTWARE.
  21  *
  22  */
  23
  24 #include <linux/delay.h>
  25 #include <linux/firmware.h>
  26 #include <linux/module.h>
  27 #include <linux/pci.h>
  28
  29 #include "amdgpu.h"
  30 #include "amdgpu_ucode.h"
  31 #include "amdgpu_trace.h"
  32
  33 #include "gc/gc_10_3_0_offset.h"
  34 #include "gc/gc_10_3_0_sh_mask.h"
  35 #include "ivsrcid/sdma0/irqsrcs_sdma0_5_0.h"
  36 #include "ivsrcid/sdma1/irqsrcs_sdma1_5_0.h"
  37 #include "ivsrcid/sdma2/irqsrcs_sdma2_5_0.h"
  38 #include "ivsrcid/sdma3/irqsrcs_sdma3_5_0.h"
  39
  40 #include "soc15_common.h"
  41 #include "soc15.h"
  42 #include "navi10_sdma_pkt_open.h"
  43 #include "nbio_v2_3.h"
  44 #include "sdma_common.h"
  45 #include "sdma_v5_2.h"
  46
  47 MODULE_FIRMWARE("amdgpu/sienna_cichlid_sdma.bin");
  48 MODULE_FIRMWARE("amdgpu/navy_flounder_sdma.bin");
  49 MODULE_FIRMWARE("amdgpu/dimgrey_cavefish_sdma.bin");
  50 MODULE_FIRMWARE("amdgpu/beige_goby_sdma.bin");
  51
  52 MODULE_FIRMWARE("amdgpu/vangogh_sdma.bin");
  53 MODULE_FIRMWARE("amdgpu/yellow_carp_sdma.bin");
  54 MODULE_FIRMWARE("amdgpu/sdma_5_2_6.bin");
  55 MODULE_FIRMWARE("amdgpu/sdma_5_2_7.bin");
  56
  57 #define SDMA1_REG_OFFSET 0x600
  58 #define SDMA3_REG_OFFSET 0x400
  59 #define SDMA0_HYP_DEC_REG_START 0x5880
  60 #define SDMA0_HYP_DEC_REG_END 0x5893
  61 #define SDMA1_HYP_DEC_REG_OFFSET 0x20
  62
  63 static void sdma_v5_2_set_ring_funcs(struct amdgpu_device *adev);
  64 static void sdma_v5_2_set_buffer_funcs(struct amdgpu_device *adev);
  65 static void sdma_v5_2_set_vm_pte_funcs(struct amdgpu_device *adev);
  66 static void sdma_v5_2_set_irq_funcs(struct amdgpu_device *adev);
  67
  68 static u32 sdma_v5_2_get_reg_offset(struct amdgpu_device *adev, u32 instance, u32 internal_offset)
  69 {
  70         u32 base;
  71
  72         if (internal_offset >= SDMA0_HYP_DEC_REG_START &&
  73             internal_offset <= SDMA0_HYP_DEC_REG_END) {
  74                 base = adev->reg_offset[GC_HWIP][0][1];
  75                 if (instance != 0)
  76                         internal_offset += SDMA1_HYP_DEC_REG_OFFSET * instance;
  77         } else {
  78                 if (instance < 2) {
  79                         base = adev->reg_offset[GC_HWIP][0][0];
  80                         if (instance == 1)
  81                                 internal_offset += SDMA1_REG_OFFSET;
  82                 } else {
  83                         base = adev->reg_offset[GC_HWIP][0][2];
  84                         if (instance == 3)
  85                                 internal_offset += SDMA3_REG_OFFSET;
  86                 }
  87         }
  88
  89         return base + internal_offset;
  90 }
  91
  92 static unsigned sdma_v5_2_ring_init_cond_exec(struct amdgpu_ring *ring,
  93                                               uint64_t addr)
  94 {
  95         unsigned ret;
  96
  97         amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_COND_EXE));
  98         amdgpu_ring_write(ring, lower_32_bits(addr));
  99         amdgpu_ring_write(ring, upper_32_bits(addr));
 100         amdgpu_ring_write(ring, 1);
 101         /* this is the offset we need patch later */
 102         ret = ring->wptr & ring->buf_mask;
 103         /* insert dummy here and patch it later */
 104         amdgpu_ring_write(ring, 0);
 105
 106         return ret;
 107 }
 108
 109 /**
 110  * sdma_v5_2_ring_get_rptr - get the current read pointer
 111  *
 112  * @ring: amdgpu ring pointer
 113  *
 114  * Get the current rptr from the hardware (NAVI10+).
 115  */
 116 static uint64_t sdma_v5_2_ring_get_rptr(struct amdgpu_ring *ring)
 117 {
 118         u64 *rptr;
 119
 120         /* XXX check if swapping is necessary on BE */
 121         rptr = (u64 *)ring->rptr_cpu_addr;
 122
 123         DRM_DEBUG("rptr before shift == 0x%016llx\n", *rptr);
 124         return ((*rptr) >> 2);
 125 }
 126
 127 /**
 128  * sdma_v5_2_ring_get_wptr - get the current write pointer
 129  *
 130  * @ring: amdgpu ring pointer
 131  *
 132  * Get the current wptr from the hardware (NAVI10+).
 133  */
 134 static uint64_t sdma_v5_2_ring_get_wptr(struct amdgpu_ring *ring)
 135 {
 136         struct amdgpu_device *adev = ring->adev;
 137         u64 wptr;
 138
 139         if (ring->use_doorbell) {
 140                 /* XXX check if swapping is necessary on BE */
 141                 wptr = READ_ONCE(*((u64 *)ring->wptr_cpu_addr));
 142                 DRM_DEBUG("wptr/doorbell before shift == 0x%016llx\n", wptr);
 143         } else {
 144                 wptr = RREG32(sdma_v5_2_get_reg_offset(adev, ring->me, mmSDMA0_GFX_RB_WPTR_HI));
 145                 wptr = wptr << 32;
 146                 wptr |= RREG32(sdma_v5_2_get_reg_offset(adev, ring->me, mmSDMA0_GFX_RB_WPTR));
 147                 DRM_DEBUG("wptr before shift [%i] wptr == 0x%016llx\n", ring->me, wptr);
 148         }
 149
 150         return wptr >> 2;
 151 }
 152
 153 /**
 154  * sdma_v5_2_ring_set_wptr - commit the write pointer
 155  *
 156  * @ring: amdgpu ring pointer
 157  *
 158  * Write the wptr back to the hardware (NAVI10+).
 159  */
 160 static void sdma_v5_2_ring_set_wptr(struct amdgpu_ring *ring)
 161 {
 162         struct amdgpu_device *adev = ring->adev;
 163
 164         DRM_DEBUG("Setting write pointer\n");
 165         if (ring->use_doorbell) {
 166                 DRM_DEBUG("Using doorbell -- "
 167                                 "wptr_offs == 0x%08x "
 168                                 "lower_32_bits(ring->wptr << 2) == 0x%08x "
 169                                 "upper_32_bits(ring->wptr << 2) == 0x%08x\n",
 170                                 ring->wptr_offs,
 171                                 lower_32_bits(ring->wptr << 2),
 172                                 upper_32_bits(ring->wptr << 2));
 173                 /* XXX check if swapping is necessary on BE */
 174                 atomic64_set((atomic64_t *)ring->wptr_cpu_addr,
 175                              ring->wptr << 2);
 176                 DRM_DEBUG("calling WDOORBELL64(0x%08x, 0x%016llx)\n",
 177                                 ring->doorbell_index, ring->wptr << 2);
 178                 WDOORBELL64(ring->doorbell_index, ring->wptr << 2);
 179         } else {
 180                 DRM_DEBUG("Not using doorbell -- "
 181                                 "mmSDMA%i_GFX_RB_WPTR == 0x%08x "
 182                                 "mmSDMA%i_GFX_RB_WPTR_HI == 0x%08x\n",
 183                                 ring->me,
 184                                 lower_32_bits(ring->wptr << 2),
 185                                 ring->me,
 186                                 upper_32_bits(ring->wptr << 2));
 187                 WREG32(sdma_v5_2_get_reg_offset(adev, ring->me, mmSDMA0_GFX_RB_WPTR),
 188                         lower_32_bits(ring->wptr << 2));
 189                 WREG32(sdma_v5_2_get_reg_offset(adev, ring->me, mmSDMA0_GFX_RB_WPTR_HI),
 190                         upper_32_bits(ring->wptr << 2));
 191         }
 192 }
 193
 194 static void sdma_v5_2_ring_insert_nop(struct amdgpu_ring *ring, uint32_t count)
 195 {
 196         struct amdgpu_sdma_instance *sdma = amdgpu_sdma_get_instance_from_ring(ring);
 197         int i;
 198
 199         for (i = 0; i < count; i++)
 200                 if (sdma && sdma->burst_nop && (i == 0))
 201                         amdgpu_ring_write(ring, ring->funcs->nop |
 202                                 SDMA_PKT_NOP_HEADER_COUNT(count - 1));
 203                 else
 204                         amdgpu_ring_write(ring, ring->funcs->nop);
 205 }
 206
 207 /**
 208  * sdma_v5_2_ring_emit_ib - Schedule an IB on the DMA engine
 209  *
 210  * @ring: amdgpu ring pointer
 211  * @job: job to retrieve vmid from
 212  * @ib: IB object to schedule
 213  * @flags: unused
 214  *
 215  * Schedule an IB in the DMA ring.
 216  */
 217 static void sdma_v5_2_ring_emit_ib(struct amdgpu_ring *ring,
 218                                    struct amdgpu_job *job,
 219                                    struct amdgpu_ib *ib,
 220                                    uint32_t flags)
 221 {
 222         unsigned vmid = AMDGPU_JOB_GET_VMID(job);
 223         uint64_t csa_mc_addr = amdgpu_sdma_get_csa_mc_addr(ring, vmid);
 224
 225         /* An IB packet must end on a 8 DW boundary--the next dword
 226          * must be on a 8-dword boundary. Our IB packet below is 6
 227          * dwords long, thus add x number of NOPs, such that, in
 228          * modular arithmetic,
 229          * wptr + 6 + x = 8k, k >= 0, which in C is,
 230          * (wptr + 6 + x) % 8 = 0.
 231          * The expression below, is a solution of x.
 232          */
 233         sdma_v5_2_ring_insert_nop(ring, (2 - lower_32_bits(ring->wptr)) & 7);
 234
 235         amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_INDIRECT) |
 236                           SDMA_PKT_INDIRECT_HEADER_VMID(vmid & 0xf));
 237         /* base must be 32 byte aligned */
 238         amdgpu_ring_write(ring, lower_32_bits(ib->gpu_addr) & 0xffffffe0);
 239         amdgpu_ring_write(ring, upper_32_bits(ib->gpu_addr));
 240         amdgpu_ring_write(ring, ib->length_dw);
 241         amdgpu_ring_write(ring, lower_32_bits(csa_mc_addr));
 242         amdgpu_ring_write(ring, upper_32_bits(csa_mc_addr));
 243 }
 244
 245 /**
 246  * sdma_v5_2_ring_emit_mem_sync - flush the IB by graphics cache rinse
 247  *
 248  * @ring: amdgpu ring pointer
 249  *
 250  * flush the IB by graphics cache rinse.
 251  */
 252 static void sdma_v5_2_ring_emit_mem_sync(struct amdgpu_ring *ring)
 253 {
 254         uint32_t gcr_cntl = SDMA_GCR_GL2_INV | SDMA_GCR_GL2_WB |
 255                             SDMA_GCR_GLM_INV | SDMA_GCR_GL1_INV |
 256                             SDMA_GCR_GLV_INV | SDMA_GCR_GLK_INV |
 257                             SDMA_GCR_GLI_INV(1);
 258
 259         /* flush entire cache L0/L1/L2, this can be optimized by performance requirement */
 260         amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_GCR_REQ));
 261         amdgpu_ring_write(ring, SDMA_PKT_GCR_REQ_PAYLOAD1_BASE_VA_31_7(0));
 262         amdgpu_ring_write(ring, SDMA_PKT_GCR_REQ_PAYLOAD2_GCR_CONTROL_15_0(gcr_cntl) |
 263                         SDMA_PKT_GCR_REQ_PAYLOAD2_BASE_VA_47_32(0));
 264         amdgpu_ring_write(ring, SDMA_PKT_GCR_REQ_PAYLOAD3_LIMIT_VA_31_7(0) |
 265                         SDMA_PKT_GCR_REQ_PAYLOAD3_GCR_CONTROL_18_16(gcr_cntl >> 16));
 266         amdgpu_ring_write(ring, SDMA_PKT_GCR_REQ_PAYLOAD4_LIMIT_VA_47_32(0) |
 267                         SDMA_PKT_GCR_REQ_PAYLOAD4_VMID(0));
 268 }
 269
 270 /**
 271  * sdma_v5_2_ring_emit_hdp_flush - emit an hdp flush on the DMA ring
 272  *
 273  * @ring: amdgpu ring pointer
 274  *
 275  * Emit an hdp flush packet on the requested DMA ring.
 276  */
 277 static void sdma_v5_2_ring_emit_hdp_flush(struct amdgpu_ring *ring)
 278 {
 279         struct amdgpu_device *adev = ring->adev;
 280         u32 ref_and_mask = 0;
 281         const struct nbio_hdp_flush_reg *nbio_hf_reg = adev->nbio.hdp_flush_reg;
 282
 283         if (ring->me > 1) {
 284                 amdgpu_asic_flush_hdp(adev, ring);
 285         } else {
 286                 ref_and_mask = nbio_hf_reg->ref_and_mask_sdma0 << ring->me;
 287
 288                 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_POLL_REGMEM) |
 289                                   SDMA_PKT_POLL_REGMEM_HEADER_HDP_FLUSH(1) |
 290                                   SDMA_PKT_POLL_REGMEM_HEADER_FUNC(3)); /* == */
 291                 amdgpu_ring_write(ring, (adev->nbio.funcs->get_hdp_flush_done_offset(adev)) << 2);
 292                 amdgpu_ring_write(ring, (adev->nbio.funcs->get_hdp_flush_req_offset(adev)) << 2);
 293                 amdgpu_ring_write(ring, ref_and_mask); /* reference */
 294                 amdgpu_ring_write(ring, ref_and_mask); /* mask */
 295                 amdgpu_ring_write(ring, SDMA_PKT_POLL_REGMEM_DW5_RETRY_COUNT(0xfff) |
 296                                   SDMA_PKT_POLL_REGMEM_DW5_INTERVAL(10)); /* retry count, poll interval */
 297         }
 298 }
 299
 300 /**
 301  * sdma_v5_2_ring_emit_fence - emit a fence on the DMA ring
 302  *
 303  * @ring: amdgpu ring pointer
 304  * @addr: address
 305  * @seq: sequence number
 306  * @flags: fence related flags
 307  *
 308  * Add a DMA fence packet to the ring to write
 309  * the fence seq number and DMA trap packet to generate
 310  * an interrupt if needed.
 311  */
 312 static void sdma_v5_2_ring_emit_fence(struct amdgpu_ring *ring, u64 addr, u64 seq,
 313                                       unsigned flags)
 314 {
 315         bool write64bit = flags & AMDGPU_FENCE_FLAG_64BIT;
 316         /* write the fence */
 317         amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_FENCE) |
 318                           SDMA_PKT_FENCE_HEADER_MTYPE(0x3)); /* Ucached(UC) */
 319         /* zero in first two bits */
 320         BUG_ON(addr & 0x3);
 321         amdgpu_ring_write(ring, lower_32_bits(addr));
 322         amdgpu_ring_write(ring, upper_32_bits(addr));
 323         amdgpu_ring_write(ring, lower_32_bits(seq));
 324
 325         /* optionally write high bits as well */
 326         if (write64bit) {
 327                 addr += 4;
 328                 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_FENCE) |
 329                                   SDMA_PKT_FENCE_HEADER_MTYPE(0x3));
 330                 /* zero in first two bits */
 331                 BUG_ON(addr & 0x3);
 332                 amdgpu_ring_write(ring, lower_32_bits(addr));
 333                 amdgpu_ring_write(ring, upper_32_bits(addr));
 334                 amdgpu_ring_write(ring, upper_32_bits(seq));
 335         }
 336
 337         if ((flags & AMDGPU_FENCE_FLAG_INT)) {
 338                 uint32_t ctx = ring->is_mes_queue ?
 339                         (ring->hw_queue_id | AMDGPU_FENCE_MES_QUEUE_FLAG) : 0;
 340                 /* generate an interrupt */
 341                 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_TRAP));
 342                 amdgpu_ring_write(ring, SDMA_PKT_TRAP_INT_CONTEXT_INT_CONTEXT(ctx));
 343         }
 344 }
 345
 346
 347 /**
 348  * sdma_v5_2_gfx_stop - stop the gfx async dma engines
 349  *
 350  * @adev: amdgpu_device pointer
 351  *
 352  * Stop the gfx async dma ring buffers.
 353  */
 354 static void sdma_v5_2_gfx_stop(struct amdgpu_device *adev)
 355 {
 356         u32 rb_cntl, ib_cntl;
 357         int i;
 358
 359         for (i = 0; i < adev->sdma.num_instances; i++) {
 360                 rb_cntl = RREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_CNTL));
 361                 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RB_ENABLE, 0);
 362                 WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_CNTL), rb_cntl);
 363                 ib_cntl = RREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_IB_CNTL));
 364                 ib_cntl = REG_SET_FIELD(ib_cntl, SDMA0_GFX_IB_CNTL, IB_ENABLE, 0);
 365                 WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_IB_CNTL), ib_cntl);
 366         }
 367 }
 368
 369 /**
 370  * sdma_v5_2_rlc_stop - stop the compute async dma engines
 371  *
 372  * @adev: amdgpu_device pointer
 373  *
 374  * Stop the compute async dma queues.
 375  */
 376 static void sdma_v5_2_rlc_stop(struct amdgpu_device *adev)
 377 {
 378         /* XXX todo */
 379 }
 380
 381 /**
 382  * sdma_v5_2_ctx_switch_enable - stop the async dma engines context switch
 383  *
 384  * @adev: amdgpu_device pointer
 385  * @enable: enable/disable the DMA MEs context switch.
 386  *
 387  * Halt or unhalt the async dma engines context switch.
 388  */
 389 static void sdma_v5_2_ctx_switch_enable(struct amdgpu_device *adev, bool enable)
 390 {
 391         u32 f32_cntl, phase_quantum = 0;
 392         int i;
 393
 394         if (amdgpu_sdma_phase_quantum) {
 395                 unsigned value = amdgpu_sdma_phase_quantum;
 396                 unsigned unit = 0;
 397
 398                 while (value > (SDMA0_PHASE0_QUANTUM__VALUE_MASK >>
 399                                 SDMA0_PHASE0_QUANTUM__VALUE__SHIFT)) {
 400                         value = (value + 1) >> 1;
 401                         unit++;
 402                 }
 403                 if (unit > (SDMA0_PHASE0_QUANTUM__UNIT_MASK >>
 404                             SDMA0_PHASE0_QUANTUM__UNIT__SHIFT)) {
 405                         value = (SDMA0_PHASE0_QUANTUM__VALUE_MASK >>
 406                                  SDMA0_PHASE0_QUANTUM__VALUE__SHIFT);
 407                         unit = (SDMA0_PHASE0_QUANTUM__UNIT_MASK >>
 408                                 SDMA0_PHASE0_QUANTUM__UNIT__SHIFT);
 409                         WARN_ONCE(1,
 410                         "clamping sdma_phase_quantum to %uK clock cycles\n",
 411                                   value << unit);
 412                 }
 413                 phase_quantum =
 414                         value << SDMA0_PHASE0_QUANTUM__VALUE__SHIFT |
 415                         unit  << SDMA0_PHASE0_QUANTUM__UNIT__SHIFT;
 416         }
 417
 418         for (i = 0; i < adev->sdma.num_instances; i++) {
 419                 if (enable && amdgpu_sdma_phase_quantum) {
 420                         WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_PHASE0_QUANTUM),
 421                                phase_quantum);
 422                         WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_PHASE1_QUANTUM),
 423                                phase_quantum);
 424                         WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_PHASE2_QUANTUM),
 425                                phase_quantum);
 426                 }
 427
 428                 if (!amdgpu_sriov_vf(adev)) {
 429                         f32_cntl = RREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_CNTL));
 430                         f32_cntl = REG_SET_FIELD(f32_cntl, SDMA0_CNTL,
 431                                         AUTO_CTXSW_ENABLE, enable ? 1 : 0);
 432                         WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_CNTL), f32_cntl);
 433                 }
 434         }
 435
 436 }
 437
 438 /**
 439  * sdma_v5_2_enable - stop the async dma engines
 440  *
 441  * @adev: amdgpu_device pointer
 442  * @enable: enable/disable the DMA MEs.
 443  *
 444  * Halt or unhalt the async dma engines.
 445  */
 446 static void sdma_v5_2_enable(struct amdgpu_device *adev, bool enable)
 447 {
 448         u32 f32_cntl;
 449         int i;
 450
 451         if (!enable) {
 452                 sdma_v5_2_gfx_stop(adev);
 453                 sdma_v5_2_rlc_stop(adev);
 454         }
 455
 456         if (!amdgpu_sriov_vf(adev)) {
 457                 for (i = 0; i < adev->sdma.num_instances; i++) {
 458                         f32_cntl = RREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_F32_CNTL));
 459                         f32_cntl = REG_SET_FIELD(f32_cntl, SDMA0_F32_CNTL, HALT, enable ? 0 : 1);
 460                         WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_F32_CNTL), f32_cntl);
 461                 }
 462         }
 463 }
 464
 465 /**
 466  * sdma_v5_2_gfx_resume - setup and start the async dma engines
 467  *
 468  * @adev: amdgpu_device pointer
 469  *
 470  * Set up the gfx DMA ring buffers and enable them.
 471  * Returns 0 for success, error for failure.
 472  */
 473 static int sdma_v5_2_gfx_resume(struct amdgpu_device *adev)
 474 {
 475         struct amdgpu_ring *ring;
 476         u32 rb_cntl, ib_cntl;
 477         u32 rb_bufsz;
 478         u32 doorbell;
 479         u32 doorbell_offset;
 480         u32 temp;
 481         u32 wptr_poll_cntl;
 482         u64 wptr_gpu_addr;
 483         int i, r;
 484
 485         for (i = 0; i < adev->sdma.num_instances; i++) {
 486                 ring = &adev->sdma.instance[i].ring;
 487
 488                 if (!amdgpu_sriov_vf(adev))
 489                         WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_SEM_WAIT_FAIL_TIMER_CNTL), 0);
 490
 491                 /* Set ring buffer size in dwords */
 492                 rb_bufsz = order_base_2(ring->ring_size / 4);
 493                 rb_cntl = RREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_CNTL));
 494                 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RB_SIZE, rb_bufsz);
 495 #ifdef __BIG_ENDIAN
 496                 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RB_SWAP_ENABLE, 1);
 497                 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL,
 498                                         RPTR_WRITEBACK_SWAP_ENABLE, 1);
 499 #endif
 500                 WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_CNTL), rb_cntl);
 501
 502                 /* Initialize the ring buffer's read and write pointers */
 503                 WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_RPTR), 0);
 504                 WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_RPTR_HI), 0);
 505                 WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_WPTR), 0);
 506                 WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_WPTR_HI), 0);
 507
 508                 /* setup the wptr shadow polling */
 509                 wptr_gpu_addr = ring->wptr_gpu_addr;
 510                 WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_WPTR_POLL_ADDR_LO),
 511                        lower_32_bits(wptr_gpu_addr));
 512                 WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_WPTR_POLL_ADDR_HI),
 513                        upper_32_bits(wptr_gpu_addr));
 514                 wptr_poll_cntl = RREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i,
 515                                                          mmSDMA0_GFX_RB_WPTR_POLL_CNTL));
 516                 wptr_poll_cntl = REG_SET_FIELD(wptr_poll_cntl,
 517                                                SDMA0_GFX_RB_WPTR_POLL_CNTL,
 518                                                F32_POLL_ENABLE, 1);
 519                 WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_WPTR_POLL_CNTL),
 520                        wptr_poll_cntl);
 521
 522                 /* set the wb address whether it's enabled or not */
 523                 WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_RPTR_ADDR_HI),
 524                        upper_32_bits(ring->rptr_gpu_addr) & 0xFFFFFFFF);
 525                 WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_RPTR_ADDR_LO),
 526                        lower_32_bits(ring->rptr_gpu_addr) & 0xFFFFFFFC);
 527
 528                 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RPTR_WRITEBACK_ENABLE, 1);
 529
 530                 WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_BASE), ring->gpu_addr >> 8);
 531                 WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_BASE_HI), ring->gpu_addr >> 40);
 532
 533                 ring->wptr = 0;
 534
 535                 /* before programing wptr to a less value, need set minor_ptr_update first */
 536                 WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_MINOR_PTR_UPDATE), 1);
 537
 538                 if (!amdgpu_sriov_vf(adev)) { /* only bare-metal use register write for wptr */
 539                         WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_WPTR), lower_32_bits(ring->wptr << 2));
 540                         WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_WPTR_HI), upper_32_bits(ring->wptr << 2));
 541                 }
 542
 543                 doorbell = RREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_DOORBELL));
 544                 doorbell_offset = RREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_DOORBELL_OFFSET));
 545
 546                 if (ring->use_doorbell) {
 547                         doorbell = REG_SET_FIELD(doorbell, SDMA0_GFX_DOORBELL, ENABLE, 1);
 548                         doorbell_offset = REG_SET_FIELD(doorbell_offset, SDMA0_GFX_DOORBELL_OFFSET,
 549                                         OFFSET, ring->doorbell_index);
 550                 } else {
 551                         doorbell = REG_SET_FIELD(doorbell, SDMA0_GFX_DOORBELL, ENABLE, 0);
 552                 }
 553                 WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_DOORBELL), doorbell);
 554                 WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_DOORBELL_OFFSET), doorbell_offset);
 555
 556                 adev->nbio.funcs->sdma_doorbell_range(adev, i, ring->use_doorbell,
 557                                                       ring->doorbell_index,
 558                                                       adev->doorbell_index.sdma_doorbell_range);
 559
 560                 if (amdgpu_sriov_vf(adev))
 561                         sdma_v5_2_ring_set_wptr(ring);
 562
 563                 /* set minor_ptr_update to 0 after wptr programed */
 564
 565                 WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_MINOR_PTR_UPDATE), 0);
 566
 567                 /* SRIOV VF has no control of any of registers below */
 568                 if (!amdgpu_sriov_vf(adev)) {
 569                         /* set utc l1 enable flag always to 1 */
 570                         temp = RREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_CNTL));
 571                         temp = REG_SET_FIELD(temp, SDMA0_CNTL, UTC_L1_ENABLE, 1);
 572
 573                         /* enable MCBP */
 574                         temp = REG_SET_FIELD(temp, SDMA0_CNTL, MIDCMD_PREEMPT_ENABLE, 1);
 575                         WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_CNTL), temp);
 576
 577                         /* Set up RESP_MODE to non-copy addresses */
 578                         temp = RREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_UTCL1_CNTL));
 579                         temp = REG_SET_FIELD(temp, SDMA0_UTCL1_CNTL, RESP_MODE, 3);
 580                         temp = REG_SET_FIELD(temp, SDMA0_UTCL1_CNTL, REDO_DELAY, 9);
 581                         WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_UTCL1_CNTL), temp);
 582
 583                         /* program default cache read and write policy */
 584                         temp = RREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_UTCL1_PAGE));
 585                         /* clean read policy and write policy bits */
 586                         temp &= 0xFF0FFF;
 587                         temp |= ((CACHE_READ_POLICY_L2__DEFAULT << 12) |
 588                                  (CACHE_WRITE_POLICY_L2__DEFAULT << 14) |
 589                                  SDMA0_UTCL1_PAGE__LLC_NOALLOC_MASK);
 590                         WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_UTCL1_PAGE), temp);
 591
 592                         /* unhalt engine */
 593                         temp = RREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_F32_CNTL));
 594                         temp = REG_SET_FIELD(temp, SDMA0_F32_CNTL, HALT, 0);
 595                         WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_F32_CNTL), temp);
 596                 }
 597
 598                 /* enable DMA RB */
 599                 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RB_ENABLE, 1);
 600                 WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_CNTL), rb_cntl);
 601
 602                 ib_cntl = RREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_IB_CNTL));
 603                 ib_cntl = REG_SET_FIELD(ib_cntl, SDMA0_GFX_IB_CNTL, IB_ENABLE, 1);
 604 #ifdef __BIG_ENDIAN
 605                 ib_cntl = REG_SET_FIELD(ib_cntl, SDMA0_GFX_IB_CNTL, IB_SWAP_ENABLE, 1);
 606 #endif
 607                 /* enable DMA IBs */
 608                 WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_IB_CNTL), ib_cntl);
 609
 610                 if (amdgpu_sriov_vf(adev)) { /* bare-metal sequence doesn't need below to lines */
 611                         sdma_v5_2_ctx_switch_enable(adev, true);
 612                         sdma_v5_2_enable(adev, true);
 613                 }
 614
 615                 r = amdgpu_ring_test_helper(ring);
 616                 if (r)
 617                         return r;
 618         }
 619
 620         return 0;
 621 }
 622
 623 /**
 624  * sdma_v5_2_rlc_resume - setup and start the async dma engines
 625  *
 626  * @adev: amdgpu_device pointer
 627  *
 628  * Set up the compute DMA queues and enable them.
 629  * Returns 0 for success, error for failure.
 630  */
 631 static int sdma_v5_2_rlc_resume(struct amdgpu_device *adev)
 632 {
 633         return 0;
 634 }
 635
 636 /**
 637  * sdma_v5_2_load_microcode - load the sDMA ME ucode
 638  *
 639  * @adev: amdgpu_device pointer
 640  *
 641  * Loads the sDMA0/1/2/3 ucode.
 642  * Returns 0 for success, -EINVAL if the ucode is not available.
 643  */
 644 static int sdma_v5_2_load_microcode(struct amdgpu_device *adev)
 645 {
 646         const struct sdma_firmware_header_v1_0 *hdr;
 647         const __le32 *fw_data;
 648         u32 fw_size;
 649         int i, j;
 650
 651         /* halt the MEs */
 652         sdma_v5_2_enable(adev, false);
 653
 654         for (i = 0; i < adev->sdma.num_instances; i++) {
 655                 if (!adev->sdma.instance[i].fw)
 656                         return -EINVAL;
 657
 658                 hdr = (const struct sdma_firmware_header_v1_0 *)adev->sdma.instance[i].fw->data;
 659                 amdgpu_ucode_print_sdma_hdr(&hdr->header);
 660                 fw_size = le32_to_cpu(hdr->header.ucode_size_bytes) / 4;
 661
 662                 fw_data = (const __le32 *)
 663                         (adev->sdma.instance[i].fw->data +
 664                                 le32_to_cpu(hdr->header.ucode_array_offset_bytes));
 665
 666                 WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_UCODE_ADDR), 0);
 667
 668                 for (j = 0; j < fw_size; j++) {
 669                         if (amdgpu_emu_mode == 1 && j % 500 == 0)
 670                                 msleep(1);
 671                         WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_UCODE_DATA), le32_to_cpup(fw_data++));
 672                 }
 673
 674                 WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_UCODE_ADDR), adev->sdma.instance[i].fw_version);
 675         }
 676
 677         return 0;
 678 }
 679
 680 static int sdma_v5_2_soft_reset(void *handle)
 681 {
 682         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 683         u32 grbm_soft_reset;
 684         u32 tmp;
 685         int i;
 686
 687         for (i = 0; i < adev->sdma.num_instances; i++) {
 688                 grbm_soft_reset = REG_SET_FIELD(0,
 689                                                 GRBM_SOFT_RESET, SOFT_RESET_SDMA0,
 690                                                 1);
 691                 grbm_soft_reset <<= i;
 692
 693                 tmp = RREG32_SOC15(GC, 0, mmGRBM_SOFT_RESET);
 694                 tmp |= grbm_soft_reset;
 695                 DRM_DEBUG("GRBM_SOFT_RESET=0x%08X\n", tmp);
 696                 WREG32_SOC15(GC, 0, mmGRBM_SOFT_RESET, tmp);
 697                 tmp = RREG32_SOC15(GC, 0, mmGRBM_SOFT_RESET);
 698
 699                 udelay(50);
 700
 701                 tmp &= ~grbm_soft_reset;
 702                 WREG32_SOC15(GC, 0, mmGRBM_SOFT_RESET, tmp);
 703                 tmp = RREG32_SOC15(GC, 0, mmGRBM_SOFT_RESET);
 704
 705                 udelay(50);
 706         }
 707
 708         return 0;
 709 }
 710
 711 /**
 712  * sdma_v5_2_start - setup and start the async dma engines
 713  *
 714  * @adev: amdgpu_device pointer
 715  *
 716  * Set up the DMA engines and enable them.
 717  * Returns 0 for success, error for failure.
 718  */
 719 static int sdma_v5_2_start(struct amdgpu_device *adev)
 720 {
 721         int r = 0;
 722
 723         if (amdgpu_sriov_vf(adev)) {
 724                 sdma_v5_2_ctx_switch_enable(adev, false);
 725                 sdma_v5_2_enable(adev, false);
 726
 727                 /* set RB registers */
 728                 r = sdma_v5_2_gfx_resume(adev);
 729                 return r;
 730         }
 731
 732         if (adev->firmware.load_type == AMDGPU_FW_LOAD_DIRECT) {
 733                 r = sdma_v5_2_load_microcode(adev);
 734                 if (r)
 735                         return r;
 736
 737                 /* The value of mmSDMA_F32_CNTL is invalid the moment after loading fw */
 738                 if (amdgpu_emu_mode == 1)
 739                         msleep(1000);
 740         }
 741
 742         sdma_v5_2_soft_reset(adev);
 743         /* unhalt the MEs */
 744         sdma_v5_2_enable(adev, true);
 745         /* enable sdma ring preemption */
 746         sdma_v5_2_ctx_switch_enable(adev, true);
 747
 748         /* start the gfx rings and rlc compute queues */
 749         r = sdma_v5_2_gfx_resume(adev);
 750         if (r)
 751                 return r;
 752         r = sdma_v5_2_rlc_resume(adev);
 753
 754         return r;
 755 }
 756
 757 static int sdma_v5_2_mqd_init(struct amdgpu_device *adev, void *mqd,
 758                               struct amdgpu_mqd_prop *prop)
 759 {
 760         struct v10_sdma_mqd *m = mqd;
 761         uint64_t wb_gpu_addr;
 762
 763         m->sdmax_rlcx_rb_cntl =
 764                 order_base_2(prop->queue_size / 4) << SDMA0_RLC0_RB_CNTL__RB_SIZE__SHIFT |
 765                 1 << SDMA0_RLC0_RB_CNTL__RPTR_WRITEBACK_ENABLE__SHIFT |
 766                 6 << SDMA0_RLC0_RB_CNTL__RPTR_WRITEBACK_TIMER__SHIFT |
 767                 1 << SDMA0_RLC0_RB_CNTL__RB_PRIV__SHIFT;
 768
 769         m->sdmax_rlcx_rb_base = lower_32_bits(prop->hqd_base_gpu_addr >> 8);
 770         m->sdmax_rlcx_rb_base_hi = upper_32_bits(prop->hqd_base_gpu_addr >> 8);
 771
 772         m->sdmax_rlcx_rb_wptr_poll_cntl = RREG32(sdma_v5_2_get_reg_offset(adev, 0,
 773                                                   mmSDMA0_GFX_RB_WPTR_POLL_CNTL));
 774
 775         wb_gpu_addr = prop->wptr_gpu_addr;
 776         m->sdmax_rlcx_rb_wptr_poll_addr_lo = lower_32_bits(wb_gpu_addr);
 777         m->sdmax_rlcx_rb_wptr_poll_addr_hi = upper_32_bits(wb_gpu_addr);
 778
 779         wb_gpu_addr = prop->rptr_gpu_addr;
 780         m->sdmax_rlcx_rb_rptr_addr_lo = lower_32_bits(wb_gpu_addr);
 781         m->sdmax_rlcx_rb_rptr_addr_hi = upper_32_bits(wb_gpu_addr);
 782
 783         m->sdmax_rlcx_ib_cntl = RREG32(sdma_v5_2_get_reg_offset(adev, 0,
 784                                                         mmSDMA0_GFX_IB_CNTL));
 785
 786         m->sdmax_rlcx_doorbell_offset =
 787                 prop->doorbell_index << SDMA0_RLC0_DOORBELL_OFFSET__OFFSET__SHIFT;
 788
 789         m->sdmax_rlcx_doorbell = REG_SET_FIELD(0, SDMA0_RLC0_DOORBELL, ENABLE, 1);
 790
 791         return 0;
 792 }
 793
 794 static void sdma_v5_2_set_mqd_funcs(struct amdgpu_device *adev)
 795 {
 796         adev->mqds[AMDGPU_HW_IP_DMA].mqd_size = sizeof(struct v10_sdma_mqd);
 797         adev->mqds[AMDGPU_HW_IP_DMA].init_mqd = sdma_v5_2_mqd_init;
 798 }
 799
 800 /**
 801  * sdma_v5_2_ring_test_ring - simple async dma engine test
 802  *
 803  * @ring: amdgpu_ring structure holding ring information
 804  *
 805  * Test the DMA engine by writing using it to write an
 806  * value to memory.
 807  * Returns 0 for success, error for failure.
 808  */
 809 static int sdma_v5_2_ring_test_ring(struct amdgpu_ring *ring)
 810 {
 811         struct amdgpu_device *adev = ring->adev;
 812         unsigned i;
 813         unsigned index;
 814         int r;
 815         u32 tmp;
 816         u64 gpu_addr;
 817         volatile uint32_t *cpu_ptr = NULL;
 818
 819         tmp = 0xCAFEDEAD;
 820
 821         if (ring->is_mes_queue) {
 822                 uint32_t offset = 0;
 823                 offset = amdgpu_mes_ctx_get_offs(ring,
 824                                          AMDGPU_MES_CTX_PADDING_OFFS);
 825                 gpu_addr = amdgpu_mes_ctx_get_offs_gpu_addr(ring, offset);
 826                 cpu_ptr = amdgpu_mes_ctx_get_offs_cpu_addr(ring, offset);
 827                 *cpu_ptr = tmp;
 828         } else {
 829                 r = amdgpu_device_wb_get(adev, &index);
 830                 if (r) {
 831                         dev_err(adev->dev, "(%d) failed to allocate wb slot\n", r);
 832                         return r;
 833                 }
 834
 835                 gpu_addr = adev->wb.gpu_addr + (index * 4);
 836                 adev->wb.wb[index] = cpu_to_le32(tmp);
 837         }
 838
 839         r = amdgpu_ring_alloc(ring, 20);
 840         if (r) {
 841                 DRM_ERROR("amdgpu: dma failed to lock ring %d (%d).\n", ring->idx, r);
 842                 if (!ring->is_mes_queue)
 843                         amdgpu_device_wb_free(adev, index);
 844                 return r;
 845         }
 846
 847         amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_WRITE) |
 848                           SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_WRITE_LINEAR));
 849         amdgpu_ring_write(ring, lower_32_bits(gpu_addr));
 850         amdgpu_ring_write(ring, upper_32_bits(gpu_addr));
 851         amdgpu_ring_write(ring, SDMA_PKT_WRITE_UNTILED_DW_3_COUNT(0));
 852         amdgpu_ring_write(ring, 0xDEADBEEF);
 853         amdgpu_ring_commit(ring);
 854
 855         for (i = 0; i < adev->usec_timeout; i++) {
 856                 if (ring->is_mes_queue)
 857                         tmp = le32_to_cpu(*cpu_ptr);
 858                 else
 859                         tmp = le32_to_cpu(adev->wb.wb[index]);
 860                 if (tmp == 0xDEADBEEF)
 861                         break;
 862                 if (amdgpu_emu_mode == 1)
 863                         msleep(1);
 864                 else
 865                         udelay(1);
 866         }
 867
 868         if (i >= adev->usec_timeout)
 869                 r = -ETIMEDOUT;
 870
 871         if (!ring->is_mes_queue)
 872                 amdgpu_device_wb_free(adev, index);
 873
 874         return r;
 875 }
 876
 877 /**
 878  * sdma_v5_2_ring_test_ib - test an IB on the DMA engine
 879  *
 880  * @ring: amdgpu_ring structure holding ring information
 881  * @timeout: timeout value in jiffies, or MAX_SCHEDULE_TIMEOUT
 882  *
 883  * Test a simple IB in the DMA ring.
 884  * Returns 0 on success, error on failure.
 885  */
 886 static int sdma_v5_2_ring_test_ib(struct amdgpu_ring *ring, long timeout)
 887 {
 888         struct amdgpu_device *adev = ring->adev;
 889         struct amdgpu_ib ib;
 890         struct dma_fence *f = NULL;
 891         unsigned index;
 892         long r;
 893         u32 tmp = 0;
 894         u64 gpu_addr;
 895         volatile uint32_t *cpu_ptr = NULL;
 896
 897         tmp = 0xCAFEDEAD;
 898         memset(&ib, 0, sizeof(ib));
 899
 900         if (ring->is_mes_queue) {
 901                 uint32_t offset = 0;
 902                 offset = amdgpu_mes_ctx_get_offs(ring, AMDGPU_MES_CTX_IB_OFFS);
 903                 ib.gpu_addr = amdgpu_mes_ctx_get_offs_gpu_addr(ring, offset);
 904                 ib.ptr = (void *)amdgpu_mes_ctx_get_offs_cpu_addr(ring, offset);
 905
 906                 offset = amdgpu_mes_ctx_get_offs(ring,
 907                                          AMDGPU_MES_CTX_PADDING_OFFS);
 908                 gpu_addr = amdgpu_mes_ctx_get_offs_gpu_addr(ring, offset);
 909                 cpu_ptr = amdgpu_mes_ctx_get_offs_cpu_addr(ring, offset);
 910                 *cpu_ptr = tmp;
 911         } else {
 912                 r = amdgpu_device_wb_get(adev, &index);
 913                 if (r) {
 914                         dev_err(adev->dev, "(%ld) failed to allocate wb slot\n", r);
 915                         return r;
 916                 }
 917
 918                 gpu_addr = adev->wb.gpu_addr + (index * 4);
 919                 adev->wb.wb[index] = cpu_to_le32(tmp);
 920
 921                 r = amdgpu_ib_get(adev, NULL, 256, AMDGPU_IB_POOL_DIRECT, &ib);
 922                 if (r) {
 923                         DRM_ERROR("amdgpu: failed to get ib (%ld).\n", r);
 924                         goto err0;
 925                 }
 926         }
 927
 928         ib.ptr[0] = SDMA_PKT_HEADER_OP(SDMA_OP_WRITE) |
 929                 SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_WRITE_LINEAR);
 930         ib.ptr[1] = lower_32_bits(gpu_addr);
 931         ib.ptr[2] = upper_32_bits(gpu_addr);
 932         ib.ptr[3] = SDMA_PKT_WRITE_UNTILED_DW_3_COUNT(0);
 933         ib.ptr[4] = 0xDEADBEEF;
 934         ib.ptr[5] = SDMA_PKT_NOP_HEADER_OP(SDMA_OP_NOP);
 935         ib.ptr[6] = SDMA_PKT_NOP_HEADER_OP(SDMA_OP_NOP);
 936         ib.ptr[7] = SDMA_PKT_NOP_HEADER_OP(SDMA_OP_NOP);
 937         ib.length_dw = 8;
 938
 939         r = amdgpu_ib_schedule(ring, 1, &ib, NULL, &f);
 940         if (r)
 941                 goto err1;
 942
 943         r = dma_fence_wait_timeout(f, false, timeout);
 944         if (r == 0) {
 945                 DRM_ERROR("amdgpu: IB test timed out\n");
 946                 r = -ETIMEDOUT;
 947                 goto err1;
 948         } else if (r < 0) {
 949                 DRM_ERROR("amdgpu: fence wait failed (%ld).\n", r);
 950                 goto err1;
 951         }
 952
 953         if (ring->is_mes_queue)
 954                 tmp = le32_to_cpu(*cpu_ptr);
 955         else
 956                 tmp = le32_to_cpu(adev->wb.wb[index]);
 957
 958         if (tmp == 0xDEADBEEF)
 959                 r = 0;
 960         else
 961                 r = -EINVAL;
 962
 963 err1:
 964         amdgpu_ib_free(adev, &ib, NULL);
 965         dma_fence_put(f);
 966 err0:
 967         if (!ring->is_mes_queue)
 968                 amdgpu_device_wb_free(adev, index);
 969         return r;
 970 }
 971
 972
 973 /**
 974  * sdma_v5_2_vm_copy_pte - update PTEs by copying them from the GART
 975  *
 976  * @ib: indirect buffer to fill with commands
 977  * @pe: addr of the page entry
 978  * @src: src addr to copy from
 979  * @count: number of page entries to update
 980  *
 981  * Update PTEs by copying them from the GART using sDMA.
 982  */
 983 static void sdma_v5_2_vm_copy_pte(struct amdgpu_ib *ib,
 984                                   uint64_t pe, uint64_t src,
 985                                   unsigned count)
 986 {
 987         unsigned bytes = count * 8;
 988
 989         ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_COPY) |
 990                 SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_COPY_LINEAR);
 991         ib->ptr[ib->length_dw++] = bytes - 1;
 992         ib->ptr[ib->length_dw++] = 0; /* src/dst endian swap */
 993         ib->ptr[ib->length_dw++] = lower_32_bits(src);
 994         ib->ptr[ib->length_dw++] = upper_32_bits(src);
 995         ib->ptr[ib->length_dw++] = lower_32_bits(pe);
 996         ib->ptr[ib->length_dw++] = upper_32_bits(pe);
 997
 998 }
 999
1000 /**
1001  * sdma_v5_2_vm_write_pte - update PTEs by writing them manually
1002  *
1003  * @ib: indirect buffer to fill with commands
1004  * @pe: addr of the page entry
1005  * @value: dst addr to write into pe
1006  * @count: number of page entries to update
1007  * @incr: increase next addr by incr bytes
1008  *
1009  * Update PTEs by writing them manually using sDMA.
1010  */
1011 static void sdma_v5_2_vm_write_pte(struct amdgpu_ib *ib, uint64_t pe,
1012                                    uint64_t value, unsigned count,
1013                                    uint32_t incr)
1014 {
1015         unsigned ndw = count * 2;
1016
1017         ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_WRITE) |
1018                 SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_WRITE_LINEAR);
1019         ib->ptr[ib->length_dw++] = lower_32_bits(pe);
1020         ib->ptr[ib->length_dw++] = upper_32_bits(pe);
1021         ib->ptr[ib->length_dw++] = ndw - 1;
1022         for (; ndw > 0; ndw -= 2) {
1023                 ib->ptr[ib->length_dw++] = lower_32_bits(value);
1024                 ib->ptr[ib->length_dw++] = upper_32_bits(value);
1025                 value += incr;
1026         }
1027 }
1028
1029 /**
1030  * sdma_v5_2_vm_set_pte_pde - update the page tables using sDMA
1031  *
1032  * @ib: indirect buffer to fill with commands
1033  * @pe: addr of the page entry
1034  * @addr: dst addr to write into pe
1035  * @count: number of page entries to update
1036  * @incr: increase next addr by incr bytes
1037  * @flags: access flags
1038  *
1039  * Update the page tables using sDMA.
1040  */
1041 static void sdma_v5_2_vm_set_pte_pde(struct amdgpu_ib *ib,
1042                                      uint64_t pe,
1043                                      uint64_t addr, unsigned count,
1044                                      uint32_t incr, uint64_t flags)
1045 {
1046         /* for physically contiguous pages (vram) */
1047         ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_PTEPDE);
1048         ib->ptr[ib->length_dw++] = lower_32_bits(pe); /* dst addr */
1049         ib->ptr[ib->length_dw++] = upper_32_bits(pe);
1050         ib->ptr[ib->length_dw++] = lower_32_bits(flags); /* mask */
1051         ib->ptr[ib->length_dw++] = upper_32_bits(flags);
1052         ib->ptr[ib->length_dw++] = lower_32_bits(addr); /* value */
1053         ib->ptr[ib->length_dw++] = upper_32_bits(addr);
1054         ib->ptr[ib->length_dw++] = incr; /* increment size */
1055         ib->ptr[ib->length_dw++] = 0;
1056         ib->ptr[ib->length_dw++] = count - 1; /* number of entries */
1057 }
1058
1059 /**
1060  * sdma_v5_2_ring_pad_ib - pad the IB
1061  *
1062  * @ib: indirect buffer to fill with padding
1063  * @ring: amdgpu_ring structure holding ring information
1064  *
1065  * Pad the IB with NOPs to a boundary multiple of 8.
1066  */
1067 static void sdma_v5_2_ring_pad_ib(struct amdgpu_ring *ring, struct amdgpu_ib *ib)
1068 {
1069         struct amdgpu_sdma_instance *sdma = amdgpu_sdma_get_instance_from_ring(ring);
1070         u32 pad_count;
1071         int i;
1072
1073         pad_count = (-ib->length_dw) & 0x7;
1074         for (i = 0; i < pad_count; i++)
1075                 if (sdma && sdma->burst_nop && (i == 0))
1076                         ib->ptr[ib->length_dw++] =
1077                                 SDMA_PKT_HEADER_OP(SDMA_OP_NOP) |
1078                                 SDMA_PKT_NOP_HEADER_COUNT(pad_count - 1);
1079                 else
1080                         ib->ptr[ib->length_dw++] =
1081                                 SDMA_PKT_HEADER_OP(SDMA_OP_NOP);
1082 }
1083
1084
1085 /**
1086  * sdma_v5_2_ring_emit_pipeline_sync - sync the pipeline
1087  *
1088  * @ring: amdgpu_ring pointer
1089  *
1090  * Make sure all previous operations are completed (CIK).
1091  */
1092 static void sdma_v5_2_ring_emit_pipeline_sync(struct amdgpu_ring *ring)
1093 {
1094         uint32_t seq = ring->fence_drv.sync_seq;
1095         uint64_t addr = ring->fence_drv.gpu_addr;
1096
1097         /* wait for idle */
1098         amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_POLL_REGMEM) |
1099                           SDMA_PKT_POLL_REGMEM_HEADER_HDP_FLUSH(0) |
1100                           SDMA_PKT_POLL_REGMEM_HEADER_FUNC(3) | /* equal */
1101                           SDMA_PKT_POLL_REGMEM_HEADER_MEM_POLL(1));
1102         amdgpu_ring_write(ring, addr & 0xfffffffc);
1103         amdgpu_ring_write(ring, upper_32_bits(addr) & 0xffffffff);
1104         amdgpu_ring_write(ring, seq); /* reference */
1105         amdgpu_ring_write(ring, 0xffffffff); /* mask */
1106         amdgpu_ring_write(ring, SDMA_PKT_POLL_REGMEM_DW5_RETRY_COUNT(0xfff) |
1107                           SDMA_PKT_POLL_REGMEM_DW5_INTERVAL(4)); /* retry count, poll interval */
1108 }
1109
1110
1111 /**
1112  * sdma_v5_2_ring_emit_vm_flush - vm flush using sDMA
1113  *
1114  * @ring: amdgpu_ring pointer
1115  * @vmid: vmid number to use
1116  * @pd_addr: address
1117  *
1118  * Update the page table base and flush the VM TLB
1119  * using sDMA.
1120  */
1121 static void sdma_v5_2_ring_emit_vm_flush(struct amdgpu_ring *ring,
1122                                          unsigned vmid, uint64_t pd_addr)
1123 {
1124         amdgpu_gmc_emit_flush_gpu_tlb(ring, vmid, pd_addr);
1125 }
1126
1127 static void sdma_v5_2_ring_emit_wreg(struct amdgpu_ring *ring,
1128                                      uint32_t reg, uint32_t val)
1129 {
1130         amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_SRBM_WRITE) |
1131                           SDMA_PKT_SRBM_WRITE_HEADER_BYTE_EN(0xf));
1132         amdgpu_ring_write(ring, reg);
1133         amdgpu_ring_write(ring, val);
1134 }
1135
1136 static void sdma_v5_2_ring_emit_reg_wait(struct amdgpu_ring *ring, uint32_t reg,
1137                                          uint32_t val, uint32_t mask)
1138 {
1139         amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_POLL_REGMEM) |
1140                           SDMA_PKT_POLL_REGMEM_HEADER_HDP_FLUSH(0) |
1141                           SDMA_PKT_POLL_REGMEM_HEADER_FUNC(3)); /* equal */
1142         amdgpu_ring_write(ring, reg << 2);
1143         amdgpu_ring_write(ring, 0);
1144         amdgpu_ring_write(ring, val); /* reference */
1145         amdgpu_ring_write(ring, mask); /* mask */
1146         amdgpu_ring_write(ring, SDMA_PKT_POLL_REGMEM_DW5_RETRY_COUNT(0xfff) |
1147                           SDMA_PKT_POLL_REGMEM_DW5_INTERVAL(10));
1148 }
1149
1150 static void sdma_v5_2_ring_emit_reg_write_reg_wait(struct amdgpu_ring *ring,
1151                                                    uint32_t reg0, uint32_t reg1,
1152                                                    uint32_t ref, uint32_t mask)
1153 {
1154         amdgpu_ring_emit_wreg(ring, reg0, ref);
1155         /* wait for a cycle to reset vm_inv_eng*_ack */
1156         amdgpu_ring_emit_reg_wait(ring, reg0, 0, 0);
1157         amdgpu_ring_emit_reg_wait(ring, reg1, mask, mask);
1158 }
1159
1160 static int sdma_v5_2_early_init(void *handle)
1161 {
1162         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1163         int r;
1164
1165         r = amdgpu_sdma_init_microcode(adev, 0, true);
1166         if (r)
1167                 return r;
1168
1169         sdma_v5_2_set_ring_funcs(adev);
1170         sdma_v5_2_set_buffer_funcs(adev);
1171         sdma_v5_2_set_vm_pte_funcs(adev);
1172         sdma_v5_2_set_irq_funcs(adev);
1173         sdma_v5_2_set_mqd_funcs(adev);
1174
1175         return 0;
1176 }
1177
1178 static unsigned sdma_v5_2_seq_to_irq_id(int seq_num)
1179 {
1180         switch (seq_num) {
1181         case 0:
1182                 return SOC15_IH_CLIENTID_SDMA0;
1183         case 1:
1184                 return SOC15_IH_CLIENTID_SDMA1;
1185         case 2:
1186                 return SOC15_IH_CLIENTID_SDMA2;
1187         case 3:
1188                 return SOC15_IH_CLIENTID_SDMA3_Sienna_Cichlid;
1189         default:
1190                 break;
1191         }
1192         return -EINVAL;
1193 }
1194
1195 static unsigned sdma_v5_2_seq_to_trap_id(int seq_num)
1196 {
1197         switch (seq_num) {
1198         case 0:
1199                 return SDMA0_5_0__SRCID__SDMA_TRAP;
1200         case 1:
1201                 return SDMA1_5_0__SRCID__SDMA_TRAP;
1202         case 2:
1203                 return SDMA2_5_0__SRCID__SDMA_TRAP;
1204         case 3:
1205                 return SDMA3_5_0__SRCID__SDMA_TRAP;
1206         default:
1207                 break;
1208         }
1209         return -EINVAL;
1210 }
1211
1212 static int sdma_v5_2_sw_init(void *handle)
1213 {
1214         struct amdgpu_ring *ring;
1215         int r, i;
1216         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1217
1218         /* SDMA trap event */
1219         for (i = 0; i < adev->sdma.num_instances; i++) {
1220                 r = amdgpu_irq_add_id(adev, sdma_v5_2_seq_to_irq_id(i),
1221                                       sdma_v5_2_seq_to_trap_id(i),
1222                                       &adev->sdma.trap_irq);
1223                 if (r)
1224                         return r;
1225         }
1226
1227         for (i = 0; i < adev->sdma.num_instances; i++) {
1228                 ring = &adev->sdma.instance[i].ring;
1229                 ring->ring_obj = NULL;
1230                 ring->use_doorbell = true;
1231                 ring->me = i;
1232
1233                 DRM_INFO("use_doorbell being set to: [%s]\n",
1234                                 ring->use_doorbell?"true":"false");
1235
1236                 ring->doorbell_index =
1237                         (adev->doorbell_index.sdma_engine[i] << 1); //get DWORD offset
1238
1239                 ring->vm_hub = AMDGPU_GFXHUB(0);
1240                 sprintf(ring->name, "sdma%d", i);
1241                 r = amdgpu_ring_init(adev, ring, 1024, &adev->sdma.trap_irq,
1242                                      AMDGPU_SDMA_IRQ_INSTANCE0 + i,
1243                                      AMDGPU_RING_PRIO_DEFAULT, NULL);
1244                 if (r)
1245                         return r;
1246         }
1247
1248         return r;
1249 }
1250
1251 static int sdma_v5_2_sw_fini(void *handle)
1252 {
1253         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1254         int i;
1255
1256         for (i = 0; i < adev->sdma.num_instances; i++)
1257                 amdgpu_ring_fini(&adev->sdma.instance[i].ring);
1258
1259         amdgpu_sdma_destroy_inst_ctx(adev, true);
1260
1261         return 0;
1262 }
1263
1264 static int sdma_v5_2_hw_init(void *handle)
1265 {
1266         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1267
1268         return sdma_v5_2_start(adev);
1269 }
1270
1271 static int sdma_v5_2_hw_fini(void *handle)
1272 {
1273         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1274
1275         if (amdgpu_sriov_vf(adev))
1276                 return 0;
1277
1278         sdma_v5_2_ctx_switch_enable(adev, false);
1279         sdma_v5_2_enable(adev, false);
1280
1281         return 0;
1282 }
1283
1284 static int sdma_v5_2_suspend(void *handle)
1285 {
1286         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1287
1288         return sdma_v5_2_hw_fini(adev);
1289 }
1290
1291 static int sdma_v5_2_resume(void *handle)
1292 {
1293         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1294
1295         return sdma_v5_2_hw_init(adev);
1296 }
1297
1298 static bool sdma_v5_2_is_idle(void *handle)
1299 {
1300         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1301         u32 i;
1302
1303         for (i = 0; i < adev->sdma.num_instances; i++) {
1304                 u32 tmp = RREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_STATUS_REG));
1305
1306                 if (!(tmp & SDMA0_STATUS_REG__IDLE_MASK))
1307                         return false;
1308         }
1309
1310         return true;
1311 }
1312
1313 static int sdma_v5_2_wait_for_idle(void *handle)
1314 {
1315         unsigned i;
1316         u32 sdma0, sdma1, sdma2, sdma3;
1317         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1318
1319         for (i = 0; i < adev->usec_timeout; i++) {
1320                 sdma0 = RREG32(sdma_v5_2_get_reg_offset(adev, 0, mmSDMA0_STATUS_REG));
1321                 sdma1 = RREG32(sdma_v5_2_get_reg_offset(adev, 1, mmSDMA0_STATUS_REG));
1322                 sdma2 = RREG32(sdma_v5_2_get_reg_offset(adev, 2, mmSDMA0_STATUS_REG));
1323                 sdma3 = RREG32(sdma_v5_2_get_reg_offset(adev, 3, mmSDMA0_STATUS_REG));
1324
1325                 if (sdma0 & sdma1 & sdma2 & sdma3 & SDMA0_STATUS_REG__IDLE_MASK)
1326                         return 0;
1327                 udelay(1);
1328         }
1329         return -ETIMEDOUT;
1330 }
1331
1332 static int sdma_v5_2_ring_preempt_ib(struct amdgpu_ring *ring)
1333 {
1334         int i, r = 0;
1335         struct amdgpu_device *adev = ring->adev;
1336         u32 index = 0;
1337         u64 sdma_gfx_preempt;
1338
1339         amdgpu_sdma_get_index_from_ring(ring, &index);
1340         sdma_gfx_preempt =
1341                 sdma_v5_2_get_reg_offset(adev, index, mmSDMA0_GFX_PREEMPT);
1342
1343         /* assert preemption condition */
1344         amdgpu_ring_set_preempt_cond_exec(ring, false);
1345
1346         /* emit the trailing fence */
1347         ring->trail_seq += 1;
1348         amdgpu_ring_alloc(ring, 10);
1349         sdma_v5_2_ring_emit_fence(ring, ring->trail_fence_gpu_addr,
1350                                   ring->trail_seq, 0);
1351         amdgpu_ring_commit(ring);
1352
1353         /* assert IB preemption */
1354         WREG32(sdma_gfx_preempt, 1);
1355
1356         /* poll the trailing fence */
1357         for (i = 0; i < adev->usec_timeout; i++) {
1358                 if (ring->trail_seq ==
1359                     le32_to_cpu(*(ring->trail_fence_cpu_addr)))
1360                         break;
1361                 udelay(1);
1362         }
1363
1364         if (i >= adev->usec_timeout) {
1365                 r = -EINVAL;
1366                 DRM_ERROR("ring %d failed to be preempted\n", ring->idx);
1367         }
1368
1369         /* deassert IB preemption */
1370         WREG32(sdma_gfx_preempt, 0);
1371
1372         /* deassert the preemption condition */
1373         amdgpu_ring_set_preempt_cond_exec(ring, true);
1374         return r;
1375 }
1376
1377 static int sdma_v5_2_set_trap_irq_state(struct amdgpu_device *adev,
1378                                         struct amdgpu_irq_src *source,
1379                                         unsigned type,
1380                                         enum amdgpu_interrupt_state state)
1381 {
1382         u32 sdma_cntl;
1383         u32 reg_offset = sdma_v5_2_get_reg_offset(adev, type, mmSDMA0_CNTL);
1384
1385         if (!amdgpu_sriov_vf(adev)) {
1386                 sdma_cntl = RREG32(reg_offset);
1387                 sdma_cntl = REG_SET_FIELD(sdma_cntl, SDMA0_CNTL, TRAP_ENABLE,
1388                                state == AMDGPU_IRQ_STATE_ENABLE ? 1 : 0);
1389                 WREG32(reg_offset, sdma_cntl);
1390         }
1391
1392         return 0;
1393 }
1394
1395 static int sdma_v5_2_process_trap_irq(struct amdgpu_device *adev,
1396                                       struct amdgpu_irq_src *source,
1397                                       struct amdgpu_iv_entry *entry)
1398 {
1399         uint32_t mes_queue_id = entry->src_data[0];
1400
1401         DRM_DEBUG("IH: SDMA trap\n");
1402
1403         if (adev->enable_mes && (mes_queue_id & AMDGPU_FENCE_MES_QUEUE_FLAG)) {
1404                 struct amdgpu_mes_queue *queue;
1405
1406                 mes_queue_id &= AMDGPU_FENCE_MES_QUEUE_ID_MASK;
1407
1408                 spin_lock(&adev->mes.queue_id_lock);
1409                 queue = idr_find(&adev->mes.queue_id_idr, mes_queue_id);
1410                 if (queue) {
1411                         DRM_DEBUG("process smda queue id = %d\n", mes_queue_id);
1412                         amdgpu_fence_process(queue->ring);
1413                 }
1414                 spin_unlock(&adev->mes.queue_id_lock);
1415                 return 0;
1416         }
1417
1418         switch (entry->client_id) {
1419         case SOC15_IH_CLIENTID_SDMA0:
1420                 switch (entry->ring_id) {
1421                 case 0:
1422                         amdgpu_fence_process(&adev->sdma.instance[0].ring);
1423                         break;
1424                 case 1:
1425                         /* XXX compute */
1426                         break;
1427                 case 2:
1428                         /* XXX compute */
1429                         break;
1430                 case 3:
1431                         /* XXX page queue*/
1432                         break;
1433                 }
1434                 break;
1435         case SOC15_IH_CLIENTID_SDMA1:
1436                 switch (entry->ring_id) {
1437                 case 0:
1438                         amdgpu_fence_process(&adev->sdma.instance[1].ring);
1439                         break;
1440                 case 1:
1441                         /* XXX compute */
1442                         break;
1443                 case 2:
1444                         /* XXX compute */
1445                         break;
1446                 case 3:
1447                         /* XXX page queue*/
1448                         break;
1449                 }
1450                 break;
1451         case SOC15_IH_CLIENTID_SDMA2:
1452                 switch (entry->ring_id) {
1453                 case 0:
1454                         amdgpu_fence_process(&adev->sdma.instance[2].ring);
1455                         break;
1456                 case 1:
1457                         /* XXX compute */
1458                         break;
1459                 case 2:
1460                         /* XXX compute */
1461                         break;
1462                 case 3:
1463                         /* XXX page queue*/
1464                         break;
1465                 }
1466                 break;
1467         case SOC15_IH_CLIENTID_SDMA3_Sienna_Cichlid:
1468                 switch (entry->ring_id) {
1469                 case 0:
1470                         amdgpu_fence_process(&adev->sdma.instance[3].ring);
1471                         break;
1472                 case 1:
1473                         /* XXX compute */
1474                         break;
1475                 case 2:
1476                         /* XXX compute */
1477                         break;
1478                 case 3:
1479                         /* XXX page queue*/
1480                         break;
1481                 }
1482                 break;
1483         }
1484         return 0;
1485 }
1486
1487 static int sdma_v5_2_process_illegal_inst_irq(struct amdgpu_device *adev,
1488                                               struct amdgpu_irq_src *source,
1489                                               struct amdgpu_iv_entry *entry)
1490 {
1491         return 0;
1492 }
1493
1494 static bool sdma_v5_2_firmware_mgcg_support(struct amdgpu_device *adev,
1495                                                      int i)
1496 {
1497         switch (amdgpu_ip_version(adev, SDMA0_HWIP, 0)) {
1498         case IP_VERSION(5, 2, 1):
1499                 if (adev->sdma.instance[i].fw_version < 70)
1500                         return false;
1501                 break;
1502         case IP_VERSION(5, 2, 3):
1503                 if (adev->sdma.instance[i].fw_version < 47)
1504                         return false;
1505                 break;
1506         case IP_VERSION(5, 2, 7):
1507                 if (adev->sdma.instance[i].fw_version < 9)
1508                         return false;
1509                 break;
1510         default:
1511                 return true;
1512         }
1513
1514         return true;
1515
1516 }
1517
1518 static void sdma_v5_2_update_medium_grain_clock_gating(struct amdgpu_device *adev,
1519                                                        bool enable)
1520 {
1521         uint32_t data, def;
1522         int i;
1523
1524         for (i = 0; i < adev->sdma.num_instances; i++) {
1525
1526                 if (!sdma_v5_2_firmware_mgcg_support(adev, i))
1527                         adev->cg_flags &= ~AMD_CG_SUPPORT_SDMA_MGCG;
1528
1529                 if (enable && (adev->cg_flags & AMD_CG_SUPPORT_SDMA_MGCG)) {
1530                         /* Enable sdma clock gating */
1531                         def = data = RREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_CLK_CTRL));
1532                         data &= ~(SDMA0_CLK_CTRL__SOFT_OVERRIDE4_MASK |
1533                                   SDMA0_CLK_CTRL__SOFT_OVERRIDE3_MASK |
1534                                   SDMA0_CLK_CTRL__SOFT_OVERRIDE2_MASK |
1535                                   SDMA0_CLK_CTRL__SOFT_OVERRIDE1_MASK |
1536                                   SDMA0_CLK_CTRL__SOFT_OVERRIDE0_MASK |
1537                                   SDMA0_CLK_CTRL__SOFT_OVERRIDER_REG_MASK);
1538                         if (def != data)
1539                                 WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_CLK_CTRL), data);
1540                 } else {
1541                         /* Disable sdma clock gating */
1542                         def = data = RREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_CLK_CTRL));
1543                         data |= (SDMA0_CLK_CTRL__SOFT_OVERRIDE4_MASK |
1544                                  SDMA0_CLK_CTRL__SOFT_OVERRIDE3_MASK |
1545                                  SDMA0_CLK_CTRL__SOFT_OVERRIDE2_MASK |
1546                                  SDMA0_CLK_CTRL__SOFT_OVERRIDE1_MASK |
1547                                  SDMA0_CLK_CTRL__SOFT_OVERRIDE0_MASK |
1548                                  SDMA0_CLK_CTRL__SOFT_OVERRIDER_REG_MASK);
1549                         if (def != data)
1550                                 WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_CLK_CTRL), data);
1551                 }
1552         }
1553 }
1554
1555 static void sdma_v5_2_update_medium_grain_light_sleep(struct amdgpu_device *adev,
1556                                                       bool enable)
1557 {
1558         uint32_t data, def;
1559         int i;
1560
1561         for (i = 0; i < adev->sdma.num_instances; i++) {
1562                 if (adev->sdma.instance[i].fw_version < 70 &&
1563                     amdgpu_ip_version(adev, SDMA0_HWIP, 0) ==
1564                             IP_VERSION(5, 2, 1))
1565                         adev->cg_flags &= ~AMD_CG_SUPPORT_SDMA_LS;
1566
1567                 if (enable && (adev->cg_flags & AMD_CG_SUPPORT_SDMA_LS)) {
1568                         /* Enable sdma mem light sleep */
1569                         def = data = RREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_POWER_CNTL));
1570                         data |= SDMA0_POWER_CNTL__MEM_POWER_OVERRIDE_MASK;
1571                         if (def != data)
1572                                 WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_POWER_CNTL), data);
1573
1574                 } else {
1575                         /* Disable sdma mem light sleep */
1576                         def = data = RREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_POWER_CNTL));
1577                         data &= ~SDMA0_POWER_CNTL__MEM_POWER_OVERRIDE_MASK;
1578                         if (def != data)
1579                                 WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_POWER_CNTL), data);
1580
1581                 }
1582         }
1583 }
1584
1585 static int sdma_v5_2_set_clockgating_state(void *handle,
1586                                            enum amd_clockgating_state state)
1587 {
1588         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1589
1590         if (amdgpu_sriov_vf(adev))
1591                 return 0;
1592
1593         switch (amdgpu_ip_version(adev, SDMA0_HWIP, 0)) {
1594         case IP_VERSION(5, 2, 0):
1595         case IP_VERSION(5, 2, 2):
1596         case IP_VERSION(5, 2, 1):
1597         case IP_VERSION(5, 2, 4):
1598         case IP_VERSION(5, 2, 5):
1599         case IP_VERSION(5, 2, 6):
1600         case IP_VERSION(5, 2, 3):
1601         case IP_VERSION(5, 2, 7):
1602                 sdma_v5_2_update_medium_grain_clock_gating(adev,
1603                                 state == AMD_CG_STATE_GATE);
1604                 sdma_v5_2_update_medium_grain_light_sleep(adev,
1605                                 state == AMD_CG_STATE_GATE);
1606                 break;
1607         default:
1608                 break;
1609         }
1610
1611         return 0;
1612 }
1613
1614 static int sdma_v5_2_set_powergating_state(void *handle,
1615                                           enum amd_powergating_state state)
1616 {
1617         return 0;
1618 }
1619
1620 static void sdma_v5_2_get_clockgating_state(void *handle, u64 *flags)
1621 {
1622         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1623         int data;
1624
1625         if (amdgpu_sriov_vf(adev))
1626                 *flags = 0;
1627
1628         /* AMD_CG_SUPPORT_SDMA_MGCG */
1629         data = RREG32(sdma_v5_2_get_reg_offset(adev, 0, mmSDMA0_CLK_CTRL));
1630         if (!(data & SDMA0_CLK_CTRL__CGCG_EN_OVERRIDE_MASK))
1631                 *flags |= AMD_CG_SUPPORT_SDMA_MGCG;
1632
1633         /* AMD_CG_SUPPORT_SDMA_LS */
1634         data = RREG32_KIQ(sdma_v5_2_get_reg_offset(adev, 0, mmSDMA0_POWER_CNTL));
1635         if (data & SDMA0_POWER_CNTL__MEM_POWER_OVERRIDE_MASK)
1636                 *flags |= AMD_CG_SUPPORT_SDMA_LS;
1637 }
1638
1639 static void sdma_v5_2_ring_begin_use(struct amdgpu_ring *ring)
1640 {
1641         struct amdgpu_device *adev = ring->adev;
1642
1643         /* SDMA 5.2.3 (RMB) FW doesn't seem to properly
1644          * disallow GFXOFF in some cases leading to
1645          * hangs in SDMA.  Disallow GFXOFF while SDMA is active.
1646          * We can probably just limit this to 5.2.3,
1647          * but it shouldn't hurt for other parts since
1648          * this GFXOFF will be disallowed anyway when SDMA is
1649          * active, this just makes it explicit.
1650          */
1651         amdgpu_gfx_off_ctrl(adev, false);
1652 }
1653
1654 static void sdma_v5_2_ring_end_use(struct amdgpu_ring *ring)
1655 {
1656         struct amdgpu_device *adev = ring->adev;
1657
1658         /* SDMA 5.2.3 (RMB) FW doesn't seem to properly
1659          * disallow GFXOFF in some cases leading to
1660          * hangs in SDMA.  Allow GFXOFF when SDMA is complete.
1661          */
1662         amdgpu_gfx_off_ctrl(adev, true);
1663 }
1664
1665 const struct amd_ip_funcs sdma_v5_2_ip_funcs = {
1666         .name = "sdma_v5_2",
1667         .early_init = sdma_v5_2_early_init,
1668         .late_init = NULL,
1669         .sw_init = sdma_v5_2_sw_init,
1670         .sw_fini = sdma_v5_2_sw_fini,
1671         .hw_init = sdma_v5_2_hw_init,
1672         .hw_fini = sdma_v5_2_hw_fini,
1673         .suspend = sdma_v5_2_suspend,
1674         .resume = sdma_v5_2_resume,
1675         .is_idle = sdma_v5_2_is_idle,
1676         .wait_for_idle = sdma_v5_2_wait_for_idle,
1677         .soft_reset = sdma_v5_2_soft_reset,
1678         .set_clockgating_state = sdma_v5_2_set_clockgating_state,
1679         .set_powergating_state = sdma_v5_2_set_powergating_state,
1680         .get_clockgating_state = sdma_v5_2_get_clockgating_state,
1681 };
1682
1683 static const struct amdgpu_ring_funcs sdma_v5_2_ring_funcs = {
1684         .type = AMDGPU_RING_TYPE_SDMA,
1685         .align_mask = 0xf,
1686         .nop = SDMA_PKT_NOP_HEADER_OP(SDMA_OP_NOP),
1687         .support_64bit_ptrs = true,
1688         .secure_submission_supported = true,
1689         .get_rptr = sdma_v5_2_ring_get_rptr,
1690         .get_wptr = sdma_v5_2_ring_get_wptr,
1691         .set_wptr = sdma_v5_2_ring_set_wptr,
1692         .emit_frame_size =
1693                 5 + /* sdma_v5_2_ring_init_cond_exec */
1694                 6 + /* sdma_v5_2_ring_emit_hdp_flush */
1695                 3 + /* hdp_invalidate */
1696                 6 + /* sdma_v5_2_ring_emit_pipeline_sync */
1697                 /* sdma_v5_2_ring_emit_vm_flush */
1698                 SOC15_FLUSH_GPU_TLB_NUM_WREG * 3 +
1699                 SOC15_FLUSH_GPU_TLB_NUM_REG_WAIT * 6 +
1700                 10 + 10 + 10, /* sdma_v5_2_ring_emit_fence x3 for user fence, vm fence */
1701         .emit_ib_size = 7 + 6, /* sdma_v5_2_ring_emit_ib */
1702         .emit_ib = sdma_v5_2_ring_emit_ib,
1703         .emit_mem_sync = sdma_v5_2_ring_emit_mem_sync,
1704         .emit_fence = sdma_v5_2_ring_emit_fence,
1705         .emit_pipeline_sync = sdma_v5_2_ring_emit_pipeline_sync,
1706         .emit_vm_flush = sdma_v5_2_ring_emit_vm_flush,
1707         .emit_hdp_flush = sdma_v5_2_ring_emit_hdp_flush,
1708         .test_ring = sdma_v5_2_ring_test_ring,
1709         .test_ib = sdma_v5_2_ring_test_ib,
1710         .insert_nop = sdma_v5_2_ring_insert_nop,
1711         .pad_ib = sdma_v5_2_ring_pad_ib,
1712         .begin_use = sdma_v5_2_ring_begin_use,
1713         .end_use = sdma_v5_2_ring_end_use,
1714         .emit_wreg = sdma_v5_2_ring_emit_wreg,
1715         .emit_reg_wait = sdma_v5_2_ring_emit_reg_wait,
1716         .emit_reg_write_reg_wait = sdma_v5_2_ring_emit_reg_write_reg_wait,
1717         .init_cond_exec = sdma_v5_2_ring_init_cond_exec,
1718         .preempt_ib = sdma_v5_2_ring_preempt_ib,
1719 };
1720
1721 static void sdma_v5_2_set_ring_funcs(struct amdgpu_device *adev)
1722 {
1723         int i;
1724
1725         for (i = 0; i < adev->sdma.num_instances; i++) {
1726                 adev->sdma.instance[i].ring.funcs = &sdma_v5_2_ring_funcs;
1727                 adev->sdma.instance[i].ring.me = i;
1728         }
1729 }
1730
1731 static const struct amdgpu_irq_src_funcs sdma_v5_2_trap_irq_funcs = {
1732         .set = sdma_v5_2_set_trap_irq_state,
1733         .process = sdma_v5_2_process_trap_irq,
1734 };
1735
1736 static const struct amdgpu_irq_src_funcs sdma_v5_2_illegal_inst_irq_funcs = {
1737         .process = sdma_v5_2_process_illegal_inst_irq,
1738 };
1739
1740 static void sdma_v5_2_set_irq_funcs(struct amdgpu_device *adev)
1741 {
1742         adev->sdma.trap_irq.num_types = AMDGPU_SDMA_IRQ_INSTANCE0 +
1743                                         adev->sdma.num_instances;
1744         adev->sdma.trap_irq.funcs = &sdma_v5_2_trap_irq_funcs;
1745         adev->sdma.illegal_inst_irq.funcs = &sdma_v5_2_illegal_inst_irq_funcs;
1746 }
1747
1748 /**
1749  * sdma_v5_2_emit_copy_buffer - copy buffer using the sDMA engine
1750  *
1751  * @ib: indirect buffer to copy to
1752  * @src_offset: src GPU address
1753  * @dst_offset: dst GPU address
1754  * @byte_count: number of bytes to xfer
1755  * @copy_flags: copy flags for the buffers
1756  *
1757  * Copy GPU buffers using the DMA engine.
1758  * Used by the amdgpu ttm implementation to move pages if
1759  * registered as the asic copy callback.
1760  */
1761 static void sdma_v5_2_emit_copy_buffer(struct amdgpu_ib *ib,
1762                                        uint64_t src_offset,
1763                                        uint64_t dst_offset,
1764                                        uint32_t byte_count,
1765                                        uint32_t copy_flags)
1766 {
1767         ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_COPY) |
1768                 SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_COPY_LINEAR) |
1769                 SDMA_PKT_COPY_LINEAR_HEADER_TMZ((copy_flags & AMDGPU_COPY_FLAGS_TMZ) ? 1 : 0);
1770         ib->ptr[ib->length_dw++] = byte_count - 1;
1771         ib->ptr[ib->length_dw++] = 0; /* src/dst endian swap */
1772         ib->ptr[ib->length_dw++] = lower_32_bits(src_offset);
1773         ib->ptr[ib->length_dw++] = upper_32_bits(src_offset);
1774         ib->ptr[ib->length_dw++] = lower_32_bits(dst_offset);
1775         ib->ptr[ib->length_dw++] = upper_32_bits(dst_offset);
1776 }
1777
1778 /**
1779  * sdma_v5_2_emit_fill_buffer - fill buffer using the sDMA engine
1780  *
1781  * @ib: indirect buffer to fill
1782  * @src_data: value to write to buffer
1783  * @dst_offset: dst GPU address
1784  * @byte_count: number of bytes to xfer
1785  *
1786  * Fill GPU buffers using the DMA engine.
1787  */
1788 static void sdma_v5_2_emit_fill_buffer(struct amdgpu_ib *ib,
1789                                        uint32_t src_data,
1790                                        uint64_t dst_offset,
1791                                        uint32_t byte_count)
1792 {
1793         ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_CONST_FILL);
1794         ib->ptr[ib->length_dw++] = lower_32_bits(dst_offset);
1795         ib->ptr[ib->length_dw++] = upper_32_bits(dst_offset);
1796         ib->ptr[ib->length_dw++] = src_data;
1797         ib->ptr[ib->length_dw++] = byte_count - 1;
1798 }
1799
1800 static const struct amdgpu_buffer_funcs sdma_v5_2_buffer_funcs = {
1801         .copy_max_bytes = 0x400000,
1802         .copy_num_dw = 7,
1803         .emit_copy_buffer = sdma_v5_2_emit_copy_buffer,
1804
1805         .fill_max_bytes = 0x400000,
1806         .fill_num_dw = 5,
1807         .emit_fill_buffer = sdma_v5_2_emit_fill_buffer,
1808 };
1809
1810 static void sdma_v5_2_set_buffer_funcs(struct amdgpu_device *adev)
1811 {
1812         if (adev->mman.buffer_funcs == NULL) {
1813                 adev->mman.buffer_funcs = &sdma_v5_2_buffer_funcs;
1814                 adev->mman.buffer_funcs_ring = &adev->sdma.instance[0].ring;
1815         }
1816 }
1817
1818 static const struct amdgpu_vm_pte_funcs sdma_v5_2_vm_pte_funcs = {
1819         .copy_pte_num_dw = 7,
1820         .copy_pte = sdma_v5_2_vm_copy_pte,
1821         .write_pte = sdma_v5_2_vm_write_pte,
1822         .set_pte_pde = sdma_v5_2_vm_set_pte_pde,
1823 };
1824
1825 static void sdma_v5_2_set_vm_pte_funcs(struct amdgpu_device *adev)
1826 {
1827         unsigned i;
1828
1829         if (adev->vm_manager.vm_pte_funcs == NULL) {
1830                 adev->vm_manager.vm_pte_funcs = &sdma_v5_2_vm_pte_funcs;
1831                 for (i = 0; i < adev->sdma.num_instances; i++) {
1832                         adev->vm_manager.vm_pte_scheds[i] =
1833                                 &adev->sdma.instance[i].ring.sched;
1834                 }
1835                 adev->vm_manager.vm_pte_num_scheds = adev->sdma.num_instances;
1836         }
1837 }
1838
1839 const struct amdgpu_ip_block_version sdma_v5_2_ip_block = {
1840         .type = AMD_IP_BLOCK_TYPE_SDMA,
1841         .major = 5,
1842         .minor = 2,
1843         .rev = 0,
1844         .funcs = &sdma_v5_2_ip_funcs,
1845 };