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 const struct amdgpu_hwip_reg_entry sdma_reg_list_5_2[] = {
  64         SOC15_REG_ENTRY_STR(GC, 0, mmSDMA0_STATUS_REG),
  65         SOC15_REG_ENTRY_STR(GC, 0, mmSDMA0_STATUS1_REG),
  66         SOC15_REG_ENTRY_STR(GC, 0, mmSDMA0_STATUS2_REG),
  67         SOC15_REG_ENTRY_STR(GC, 0, mmSDMA0_STATUS3_REG),
  68         SOC15_REG_ENTRY_STR(GC, 0, mmSDMA0_UCODE_CHECKSUM),
  69         SOC15_REG_ENTRY_STR(GC, 0, mmSDMA0_RB_RPTR_FETCH_HI),
  70         SOC15_REG_ENTRY_STR(GC, 0, mmSDMA0_RB_RPTR_FETCH),
  71         SOC15_REG_ENTRY_STR(GC, 0, mmSDMA0_UTCL1_RD_STATUS),
  72         SOC15_REG_ENTRY_STR(GC, 0, mmSDMA0_UTCL1_WR_STATUS),
  73         SOC15_REG_ENTRY_STR(GC, 0, mmSDMA0_UTCL1_RD_XNACK0),
  74         SOC15_REG_ENTRY_STR(GC, 0, mmSDMA0_UTCL1_RD_XNACK1),
  75         SOC15_REG_ENTRY_STR(GC, 0, mmSDMA0_UTCL1_WR_XNACK0),
  76         SOC15_REG_ENTRY_STR(GC, 0, mmSDMA0_UTCL1_WR_XNACK1),
  77         SOC15_REG_ENTRY_STR(GC, 0, mmSDMA0_GFX_RB_CNTL),
  78         SOC15_REG_ENTRY_STR(GC, 0, mmSDMA0_GFX_RB_RPTR),
  79         SOC15_REG_ENTRY_STR(GC, 0, mmSDMA0_GFX_RB_RPTR_HI),
  80         SOC15_REG_ENTRY_STR(GC, 0, mmSDMA0_GFX_RB_WPTR),
  81         SOC15_REG_ENTRY_STR(GC, 0, mmSDMA0_GFX_RB_WPTR_HI),
  82         SOC15_REG_ENTRY_STR(GC, 0, mmSDMA0_GFX_IB_OFFSET),
  83         SOC15_REG_ENTRY_STR(GC, 0, mmSDMA0_GFX_IB_BASE_LO),
  84         SOC15_REG_ENTRY_STR(GC, 0, mmSDMA0_GFX_IB_BASE_HI),
  85         SOC15_REG_ENTRY_STR(GC, 0, mmSDMA0_GFX_IB_CNTL),
  86         SOC15_REG_ENTRY_STR(GC, 0, mmSDMA0_GFX_IB_RPTR),
  87         SOC15_REG_ENTRY_STR(GC, 0, mmSDMA0_GFX_IB_SUB_REMAIN),
  88         SOC15_REG_ENTRY_STR(GC, 0, mmSDMA0_GFX_DUMMY_REG),
  89         SOC15_REG_ENTRY_STR(GC, 0, mmSDMA0_PAGE_RB_CNTL),
  90         SOC15_REG_ENTRY_STR(GC, 0, mmSDMA0_PAGE_RB_RPTR),
  91         SOC15_REG_ENTRY_STR(GC, 0, mmSDMA0_PAGE_RB_RPTR_HI),
  92         SOC15_REG_ENTRY_STR(GC, 0, mmSDMA0_PAGE_RB_WPTR),
  93         SOC15_REG_ENTRY_STR(GC, 0, mmSDMA0_PAGE_RB_WPTR_HI),
  94         SOC15_REG_ENTRY_STR(GC, 0, mmSDMA0_PAGE_IB_OFFSET),
  95         SOC15_REG_ENTRY_STR(GC, 0, mmSDMA0_PAGE_IB_BASE_LO),
  96         SOC15_REG_ENTRY_STR(GC, 0, mmSDMA0_PAGE_IB_BASE_HI),
  97         SOC15_REG_ENTRY_STR(GC, 0, mmSDMA0_PAGE_DUMMY_REG),
  98         SOC15_REG_ENTRY_STR(GC, 0, mmSDMA0_RLC0_RB_CNTL),
  99         SOC15_REG_ENTRY_STR(GC, 0, mmSDMA0_RLC0_RB_RPTR),
 100         SOC15_REG_ENTRY_STR(GC, 0, mmSDMA0_RLC0_RB_RPTR_HI),
 101         SOC15_REG_ENTRY_STR(GC, 0, mmSDMA0_RLC0_RB_WPTR),
 102         SOC15_REG_ENTRY_STR(GC, 0, mmSDMA0_RLC0_RB_WPTR_HI),
 103         SOC15_REG_ENTRY_STR(GC, 0, mmSDMA0_RLC0_IB_OFFSET),
 104         SOC15_REG_ENTRY_STR(GC, 0, mmSDMA0_RLC0_IB_BASE_LO),
 105         SOC15_REG_ENTRY_STR(GC, 0, mmSDMA0_RLC0_IB_BASE_HI),
 106         SOC15_REG_ENTRY_STR(GC, 0, mmSDMA0_RLC0_DUMMY_REG),
 107         SOC15_REG_ENTRY_STR(GC, 0, mmSDMA0_INT_STATUS),
 108         SOC15_REG_ENTRY_STR(GC, 0, mmSDMA0_VM_CNTL),
 109         SOC15_REG_ENTRY_STR(GC, 0, mmGRBM_STATUS2)
 110 };
 111
 112 static void sdma_v5_2_set_ring_funcs(struct amdgpu_device *adev);
 113 static void sdma_v5_2_set_buffer_funcs(struct amdgpu_device *adev);
 114 static void sdma_v5_2_set_vm_pte_funcs(struct amdgpu_device *adev);
 115 static void sdma_v5_2_set_irq_funcs(struct amdgpu_device *adev);
 116
 117 static u32 sdma_v5_2_get_reg_offset(struct amdgpu_device *adev, u32 instance, u32 internal_offset)
 118 {
 119         u32 base;
 120
 121         if (internal_offset >= SDMA0_HYP_DEC_REG_START &&
 122             internal_offset <= SDMA0_HYP_DEC_REG_END) {
 123                 base = adev->reg_offset[GC_HWIP][0][1];
 124                 if (instance != 0)
 125                         internal_offset += SDMA1_HYP_DEC_REG_OFFSET * instance;
 126         } else {
 127                 if (instance < 2) {
 128                         base = adev->reg_offset[GC_HWIP][0][0];
 129                         if (instance == 1)
 130                                 internal_offset += SDMA1_REG_OFFSET;
 131                 } else {
 132                         base = adev->reg_offset[GC_HWIP][0][2];
 133                         if (instance == 3)
 134                                 internal_offset += SDMA3_REG_OFFSET;
 135                 }
 136         }
 137
 138         return base + internal_offset;
 139 }
 140
 141 static unsigned sdma_v5_2_ring_init_cond_exec(struct amdgpu_ring *ring,
 142                                               uint64_t addr)
 143 {
 144         unsigned ret;
 145
 146         amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_COND_EXE));
 147         amdgpu_ring_write(ring, lower_32_bits(addr));
 148         amdgpu_ring_write(ring, upper_32_bits(addr));
 149         amdgpu_ring_write(ring, 1);
 150         /* this is the offset we need patch later */
 151         ret = ring->wptr & ring->buf_mask;
 152         /* insert dummy here and patch it later */
 153         amdgpu_ring_write(ring, 0);
 154
 155         return ret;
 156 }
 157
 158 /**
 159  * sdma_v5_2_ring_get_rptr - get the current read pointer
 160  *
 161  * @ring: amdgpu ring pointer
 162  *
 163  * Get the current rptr from the hardware (NAVI10+).
 164  */
 165 static uint64_t sdma_v5_2_ring_get_rptr(struct amdgpu_ring *ring)
 166 {
 167         u64 *rptr;
 168
 169         /* XXX check if swapping is necessary on BE */
 170         rptr = (u64 *)ring->rptr_cpu_addr;
 171
 172         DRM_DEBUG("rptr before shift == 0x%016llx\n", *rptr);
 173         return ((*rptr) >> 2);
 174 }
 175
 176 /**
 177  * sdma_v5_2_ring_get_wptr - get the current write pointer
 178  *
 179  * @ring: amdgpu ring pointer
 180  *
 181  * Get the current wptr from the hardware (NAVI10+).
 182  */
 183 static uint64_t sdma_v5_2_ring_get_wptr(struct amdgpu_ring *ring)
 184 {
 185         struct amdgpu_device *adev = ring->adev;
 186         u64 wptr;
 187
 188         if (ring->use_doorbell) {
 189                 /* XXX check if swapping is necessary on BE */
 190                 wptr = READ_ONCE(*((u64 *)ring->wptr_cpu_addr));
 191                 DRM_DEBUG("wptr/doorbell before shift == 0x%016llx\n", wptr);
 192         } else {
 193                 wptr = RREG32(sdma_v5_2_get_reg_offset(adev, ring->me, mmSDMA0_GFX_RB_WPTR_HI));
 194                 wptr = wptr << 32;
 195                 wptr |= RREG32(sdma_v5_2_get_reg_offset(adev, ring->me, mmSDMA0_GFX_RB_WPTR));
 196                 DRM_DEBUG("wptr before shift [%i] wptr == 0x%016llx\n", ring->me, wptr);
 197         }
 198
 199         return wptr >> 2;
 200 }
 201
 202 /**
 203  * sdma_v5_2_ring_set_wptr - commit the write pointer
 204  *
 205  * @ring: amdgpu ring pointer
 206  *
 207  * Write the wptr back to the hardware (NAVI10+).
 208  */
 209 static void sdma_v5_2_ring_set_wptr(struct amdgpu_ring *ring)
 210 {
 211         struct amdgpu_device *adev = ring->adev;
 212
 213         DRM_DEBUG("Setting write pointer\n");
 214         if (ring->use_doorbell) {
 215                 DRM_DEBUG("Using doorbell -- "
 216                                 "wptr_offs == 0x%08x "
 217                                 "lower_32_bits(ring->wptr << 2) == 0x%08x "
 218                                 "upper_32_bits(ring->wptr << 2) == 0x%08x\n",
 219                                 ring->wptr_offs,
 220                                 lower_32_bits(ring->wptr << 2),
 221                                 upper_32_bits(ring->wptr << 2));
 222                 /* XXX check if swapping is necessary on BE */
 223                 atomic64_set((atomic64_t *)ring->wptr_cpu_addr,
 224                              ring->wptr << 2);
 225                 DRM_DEBUG("calling WDOORBELL64(0x%08x, 0x%016llx)\n",
 226                                 ring->doorbell_index, ring->wptr << 2);
 227                 WDOORBELL64(ring->doorbell_index, ring->wptr << 2);
 228                 if (amdgpu_ip_version(adev, SDMA0_HWIP, 0) == IP_VERSION(5, 2, 1)) {
 229                         /* SDMA seems to miss doorbells sometimes when powergating kicks in.
 230                          * Updating the wptr directly will wake it. This is only safe because
 231                          * we disallow gfxoff in begin_use() and then allow it again in end_use().
 232                          */
 233                         WREG32(sdma_v5_2_get_reg_offset(adev, ring->me, mmSDMA0_GFX_RB_WPTR),
 234                                lower_32_bits(ring->wptr << 2));
 235                         WREG32(sdma_v5_2_get_reg_offset(adev, ring->me, mmSDMA0_GFX_RB_WPTR_HI),
 236                                upper_32_bits(ring->wptr << 2));
 237                 }
 238         } else {
 239                 DRM_DEBUG("Not using doorbell -- "
 240                                 "mmSDMA%i_GFX_RB_WPTR == 0x%08x "
 241                                 "mmSDMA%i_GFX_RB_WPTR_HI == 0x%08x\n",
 242                                 ring->me,
 243                                 lower_32_bits(ring->wptr << 2),
 244                                 ring->me,
 245                                 upper_32_bits(ring->wptr << 2));
 246                 WREG32(sdma_v5_2_get_reg_offset(adev, ring->me, mmSDMA0_GFX_RB_WPTR),
 247                         lower_32_bits(ring->wptr << 2));
 248                 WREG32(sdma_v5_2_get_reg_offset(adev, ring->me, mmSDMA0_GFX_RB_WPTR_HI),
 249                         upper_32_bits(ring->wptr << 2));
 250         }
 251 }
 252
 253 static void sdma_v5_2_ring_insert_nop(struct amdgpu_ring *ring, uint32_t count)
 254 {
 255         struct amdgpu_sdma_instance *sdma = amdgpu_sdma_get_instance_from_ring(ring);
 256         int i;
 257
 258         for (i = 0; i < count; i++)
 259                 if (sdma && sdma->burst_nop && (i == 0))
 260                         amdgpu_ring_write(ring, ring->funcs->nop |
 261                                 SDMA_PKT_NOP_HEADER_COUNT(count - 1));
 262                 else
 263                         amdgpu_ring_write(ring, ring->funcs->nop);
 264 }
 265
 266 /**
 267  * sdma_v5_2_ring_emit_ib - Schedule an IB on the DMA engine
 268  *
 269  * @ring: amdgpu ring pointer
 270  * @job: job to retrieve vmid from
 271  * @ib: IB object to schedule
 272  * @flags: unused
 273  *
 274  * Schedule an IB in the DMA ring.
 275  */
 276 static void sdma_v5_2_ring_emit_ib(struct amdgpu_ring *ring,
 277                                    struct amdgpu_job *job,
 278                                    struct amdgpu_ib *ib,
 279                                    uint32_t flags)
 280 {
 281         unsigned vmid = AMDGPU_JOB_GET_VMID(job);
 282         uint64_t csa_mc_addr = amdgpu_sdma_get_csa_mc_addr(ring, vmid);
 283
 284         /* An IB packet must end on a 8 DW boundary--the next dword
 285          * must be on a 8-dword boundary. Our IB packet below is 6
 286          * dwords long, thus add x number of NOPs, such that, in
 287          * modular arithmetic,
 288          * wptr + 6 + x = 8k, k >= 0, which in C is,
 289          * (wptr + 6 + x) % 8 = 0.
 290          * The expression below, is a solution of x.
 291          */
 292         sdma_v5_2_ring_insert_nop(ring, (2 - lower_32_bits(ring->wptr)) & 7);
 293
 294         amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_INDIRECT) |
 295                           SDMA_PKT_INDIRECT_HEADER_VMID(vmid & 0xf));
 296         /* base must be 32 byte aligned */
 297         amdgpu_ring_write(ring, lower_32_bits(ib->gpu_addr) & 0xffffffe0);
 298         amdgpu_ring_write(ring, upper_32_bits(ib->gpu_addr));
 299         amdgpu_ring_write(ring, ib->length_dw);
 300         amdgpu_ring_write(ring, lower_32_bits(csa_mc_addr));
 301         amdgpu_ring_write(ring, upper_32_bits(csa_mc_addr));
 302 }
 303
 304 /**
 305  * sdma_v5_2_ring_emit_mem_sync - flush the IB by graphics cache rinse
 306  *
 307  * @ring: amdgpu ring pointer
 308  *
 309  * flush the IB by graphics cache rinse.
 310  */
 311 static void sdma_v5_2_ring_emit_mem_sync(struct amdgpu_ring *ring)
 312 {
 313         uint32_t gcr_cntl = SDMA_GCR_GL2_INV | SDMA_GCR_GL2_WB |
 314                             SDMA_GCR_GLM_INV | SDMA_GCR_GL1_INV |
 315                             SDMA_GCR_GLV_INV | SDMA_GCR_GLK_INV |
 316                             SDMA_GCR_GLI_INV(1);
 317
 318         /* flush entire cache L0/L1/L2, this can be optimized by performance requirement */
 319         amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_GCR_REQ));
 320         amdgpu_ring_write(ring, SDMA_PKT_GCR_REQ_PAYLOAD1_BASE_VA_31_7(0));
 321         amdgpu_ring_write(ring, SDMA_PKT_GCR_REQ_PAYLOAD2_GCR_CONTROL_15_0(gcr_cntl) |
 322                         SDMA_PKT_GCR_REQ_PAYLOAD2_BASE_VA_47_32(0));
 323         amdgpu_ring_write(ring, SDMA_PKT_GCR_REQ_PAYLOAD3_LIMIT_VA_31_7(0) |
 324                         SDMA_PKT_GCR_REQ_PAYLOAD3_GCR_CONTROL_18_16(gcr_cntl >> 16));
 325         amdgpu_ring_write(ring, SDMA_PKT_GCR_REQ_PAYLOAD4_LIMIT_VA_47_32(0) |
 326                         SDMA_PKT_GCR_REQ_PAYLOAD4_VMID(0));
 327 }
 328
 329 /**
 330  * sdma_v5_2_ring_emit_hdp_flush - emit an hdp flush on the DMA ring
 331  *
 332  * @ring: amdgpu ring pointer
 333  *
 334  * Emit an hdp flush packet on the requested DMA ring.
 335  */
 336 static void sdma_v5_2_ring_emit_hdp_flush(struct amdgpu_ring *ring)
 337 {
 338         struct amdgpu_device *adev = ring->adev;
 339         u32 ref_and_mask = 0;
 340         const struct nbio_hdp_flush_reg *nbio_hf_reg = adev->nbio.hdp_flush_reg;
 341
 342         if (ring->me > 1) {
 343                 amdgpu_asic_flush_hdp(adev, ring);
 344         } else {
 345                 ref_and_mask = nbio_hf_reg->ref_and_mask_sdma0 << ring->me;
 346
 347                 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_POLL_REGMEM) |
 348                                   SDMA_PKT_POLL_REGMEM_HEADER_HDP_FLUSH(1) |
 349                                   SDMA_PKT_POLL_REGMEM_HEADER_FUNC(3)); /* == */
 350                 amdgpu_ring_write(ring, (adev->nbio.funcs->get_hdp_flush_done_offset(adev)) << 2);
 351                 amdgpu_ring_write(ring, (adev->nbio.funcs->get_hdp_flush_req_offset(adev)) << 2);
 352                 amdgpu_ring_write(ring, ref_and_mask); /* reference */
 353                 amdgpu_ring_write(ring, ref_and_mask); /* mask */
 354                 amdgpu_ring_write(ring, SDMA_PKT_POLL_REGMEM_DW5_RETRY_COUNT(0xfff) |
 355                                   SDMA_PKT_POLL_REGMEM_DW5_INTERVAL(10)); /* retry count, poll interval */
 356         }
 357 }
 358
 359 /**
 360  * sdma_v5_2_ring_emit_fence - emit a fence on the DMA ring
 361  *
 362  * @ring: amdgpu ring pointer
 363  * @addr: address
 364  * @seq: sequence number
 365  * @flags: fence related flags
 366  *
 367  * Add a DMA fence packet to the ring to write
 368  * the fence seq number and DMA trap packet to generate
 369  * an interrupt if needed.
 370  */
 371 static void sdma_v5_2_ring_emit_fence(struct amdgpu_ring *ring, u64 addr, u64 seq,
 372                                       unsigned flags)
 373 {
 374         bool write64bit = flags & AMDGPU_FENCE_FLAG_64BIT;
 375         /* write the fence */
 376         amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_FENCE) |
 377                           SDMA_PKT_FENCE_HEADER_MTYPE(0x3)); /* Ucached(UC) */
 378         /* zero in first two bits */
 379         BUG_ON(addr & 0x3);
 380         amdgpu_ring_write(ring, lower_32_bits(addr));
 381         amdgpu_ring_write(ring, upper_32_bits(addr));
 382         amdgpu_ring_write(ring, lower_32_bits(seq));
 383
 384         /* optionally write high bits as well */
 385         if (write64bit) {
 386                 addr += 4;
 387                 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_FENCE) |
 388                                   SDMA_PKT_FENCE_HEADER_MTYPE(0x3));
 389                 /* zero in first two bits */
 390                 BUG_ON(addr & 0x3);
 391                 amdgpu_ring_write(ring, lower_32_bits(addr));
 392                 amdgpu_ring_write(ring, upper_32_bits(addr));
 393                 amdgpu_ring_write(ring, upper_32_bits(seq));
 394         }
 395
 396         if ((flags & AMDGPU_FENCE_FLAG_INT)) {
 397                 uint32_t ctx = ring->is_mes_queue ?
 398                         (ring->hw_queue_id | AMDGPU_FENCE_MES_QUEUE_FLAG) : 0;
 399                 /* generate an interrupt */
 400                 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_TRAP));
 401                 amdgpu_ring_write(ring, SDMA_PKT_TRAP_INT_CONTEXT_INT_CONTEXT(ctx));
 402         }
 403 }
 404
 405
 406 /**
 407  * sdma_v5_2_gfx_stop - stop the gfx async dma engines
 408  *
 409  * @adev: amdgpu_device pointer
 410  *
 411  * Stop the gfx async dma ring buffers.
 412  */
 413 static void sdma_v5_2_gfx_stop(struct amdgpu_device *adev)
 414 {
 415         u32 rb_cntl, ib_cntl;
 416         int i;
 417
 418         for (i = 0; i < adev->sdma.num_instances; i++) {
 419                 rb_cntl = RREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_CNTL));
 420                 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RB_ENABLE, 0);
 421                 WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_CNTL), rb_cntl);
 422                 ib_cntl = RREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_IB_CNTL));
 423                 ib_cntl = REG_SET_FIELD(ib_cntl, SDMA0_GFX_IB_CNTL, IB_ENABLE, 0);
 424                 WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_IB_CNTL), ib_cntl);
 425         }
 426 }
 427
 428 /**
 429  * sdma_v5_2_rlc_stop - stop the compute async dma engines
 430  *
 431  * @adev: amdgpu_device pointer
 432  *
 433  * Stop the compute async dma queues.
 434  */
 435 static void sdma_v5_2_rlc_stop(struct amdgpu_device *adev)
 436 {
 437         /* XXX todo */
 438 }
 439
 440 /**
 441  * sdma_v5_2_ctx_switch_enable - stop the async dma engines context switch
 442  *
 443  * @adev: amdgpu_device pointer
 444  * @enable: enable/disable the DMA MEs context switch.
 445  *
 446  * Halt or unhalt the async dma engines context switch.
 447  */
 448 static void sdma_v5_2_ctx_switch_enable(struct amdgpu_device *adev, bool enable)
 449 {
 450         u32 f32_cntl, phase_quantum = 0;
 451         int i;
 452
 453         if (amdgpu_sdma_phase_quantum) {
 454                 unsigned value = amdgpu_sdma_phase_quantum;
 455                 unsigned unit = 0;
 456
 457                 while (value > (SDMA0_PHASE0_QUANTUM__VALUE_MASK >>
 458                                 SDMA0_PHASE0_QUANTUM__VALUE__SHIFT)) {
 459                         value = (value + 1) >> 1;
 460                         unit++;
 461                 }
 462                 if (unit > (SDMA0_PHASE0_QUANTUM__UNIT_MASK >>
 463                             SDMA0_PHASE0_QUANTUM__UNIT__SHIFT)) {
 464                         value = (SDMA0_PHASE0_QUANTUM__VALUE_MASK >>
 465                                  SDMA0_PHASE0_QUANTUM__VALUE__SHIFT);
 466                         unit = (SDMA0_PHASE0_QUANTUM__UNIT_MASK >>
 467                                 SDMA0_PHASE0_QUANTUM__UNIT__SHIFT);
 468                         WARN_ONCE(1,
 469                         "clamping sdma_phase_quantum to %uK clock cycles\n",
 470                                   value << unit);
 471                 }
 472                 phase_quantum =
 473                         value << SDMA0_PHASE0_QUANTUM__VALUE__SHIFT |
 474                         unit  << SDMA0_PHASE0_QUANTUM__UNIT__SHIFT;
 475         }
 476
 477         for (i = 0; i < adev->sdma.num_instances; i++) {
 478                 if (enable && amdgpu_sdma_phase_quantum) {
 479                         WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_PHASE0_QUANTUM),
 480                                phase_quantum);
 481                         WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_PHASE1_QUANTUM),
 482                                phase_quantum);
 483                         WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_PHASE2_QUANTUM),
 484                                phase_quantum);
 485                 }
 486
 487                 if (!amdgpu_sriov_vf(adev)) {
 488                         f32_cntl = RREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_CNTL));
 489                         f32_cntl = REG_SET_FIELD(f32_cntl, SDMA0_CNTL,
 490                                         AUTO_CTXSW_ENABLE, enable ? 1 : 0);
 491                         WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_CNTL), f32_cntl);
 492                 }
 493         }
 494
 495 }
 496
 497 /**
 498  * sdma_v5_2_enable - stop the async dma engines
 499  *
 500  * @adev: amdgpu_device pointer
 501  * @enable: enable/disable the DMA MEs.
 502  *
 503  * Halt or unhalt the async dma engines.
 504  */
 505 static void sdma_v5_2_enable(struct amdgpu_device *adev, bool enable)
 506 {
 507         u32 f32_cntl;
 508         int i;
 509
 510         if (!enable) {
 511                 sdma_v5_2_gfx_stop(adev);
 512                 sdma_v5_2_rlc_stop(adev);
 513         }
 514
 515         if (!amdgpu_sriov_vf(adev)) {
 516                 for (i = 0; i < adev->sdma.num_instances; i++) {
 517                         f32_cntl = RREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_F32_CNTL));
 518                         f32_cntl = REG_SET_FIELD(f32_cntl, SDMA0_F32_CNTL, HALT, enable ? 0 : 1);
 519                         WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_F32_CNTL), f32_cntl);
 520                 }
 521         }
 522 }
 523
 524 /**
 525  * sdma_v5_2_gfx_resume_instance - start/restart a certain sdma engine
 526  *
 527  * @adev: amdgpu_device pointer
 528  * @i: instance
 529  * @restore: used to restore wptr when restart
 530  *
 531  * Set up the gfx DMA ring buffers and enable them. On restart, we will restore wptr and rptr.
 532  * Return 0 for success.
 533  */
 534
 535 static int sdma_v5_2_gfx_resume_instance(struct amdgpu_device *adev, int i, bool restore)
 536 {
 537         struct amdgpu_ring *ring;
 538         u32 rb_cntl, ib_cntl;
 539         u32 rb_bufsz;
 540         u32 doorbell;
 541         u32 doorbell_offset;
 542         u32 temp;
 543         u32 wptr_poll_cntl;
 544         u64 wptr_gpu_addr;
 545
 546         ring = &adev->sdma.instance[i].ring;
 547
 548         if (!amdgpu_sriov_vf(adev))
 549                 WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_SEM_WAIT_FAIL_TIMER_CNTL), 0);
 550
 551         /* Set ring buffer size in dwords */
 552         rb_bufsz = order_base_2(ring->ring_size / 4);
 553         rb_cntl = RREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_CNTL));
 554         rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RB_SIZE, rb_bufsz);
 555 #ifdef __BIG_ENDIAN
 556         rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RB_SWAP_ENABLE, 1);
 557         rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL,
 558                                 RPTR_WRITEBACK_SWAP_ENABLE, 1);
 559 #endif
 560         WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_CNTL), rb_cntl);
 561
 562         /* Initialize the ring buffer's read and write pointers */
 563         if (restore) {
 564                 WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_RPTR), lower_32_bits(ring->wptr << 2));
 565                 WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_RPTR_HI), upper_32_bits(ring->wptr << 2));
 566                 WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_WPTR), lower_32_bits(ring->wptr << 2));
 567                 WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_WPTR_HI), upper_32_bits(ring->wptr << 2));
 568         } else {
 569                 WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_RPTR), 0);
 570                 WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_RPTR_HI), 0);
 571                 WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_WPTR), 0);
 572                 WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_WPTR_HI), 0);
 573         }
 574
 575         /* setup the wptr shadow polling */
 576         wptr_gpu_addr = ring->wptr_gpu_addr;
 577         WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_WPTR_POLL_ADDR_LO),
 578                lower_32_bits(wptr_gpu_addr));
 579         WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_WPTR_POLL_ADDR_HI),
 580                upper_32_bits(wptr_gpu_addr));
 581         wptr_poll_cntl = RREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i,
 582                                                  mmSDMA0_GFX_RB_WPTR_POLL_CNTL));
 583         wptr_poll_cntl = REG_SET_FIELD(wptr_poll_cntl,
 584                                        SDMA0_GFX_RB_WPTR_POLL_CNTL,
 585                                        F32_POLL_ENABLE, 1);
 586         WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_WPTR_POLL_CNTL),
 587                wptr_poll_cntl);
 588
 589         /* set the wb address whether it's enabled or not */
 590         WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_RPTR_ADDR_HI),
 591                upper_32_bits(ring->rptr_gpu_addr) & 0xFFFFFFFF);
 592         WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_RPTR_ADDR_LO),
 593                lower_32_bits(ring->rptr_gpu_addr) & 0xFFFFFFFC);
 594
 595         rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RPTR_WRITEBACK_ENABLE, 1);
 596
 597         WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_BASE), ring->gpu_addr >> 8);
 598         WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_BASE_HI), ring->gpu_addr >> 40);
 599
 600         if (!restore)
 601                 ring->wptr = 0;
 602
 603         /* before programing wptr to a less value, need set minor_ptr_update first */
 604         WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_MINOR_PTR_UPDATE), 1);
 605
 606         if (!amdgpu_sriov_vf(adev)) { /* only bare-metal use register write for wptr */
 607                 WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_WPTR), lower_32_bits(ring->wptr << 2));
 608                 WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_WPTR_HI), upper_32_bits(ring->wptr << 2));
 609         }
 610
 611         doorbell = RREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_DOORBELL));
 612         doorbell_offset = RREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_DOORBELL_OFFSET));
 613
 614         if (ring->use_doorbell) {
 615                 doorbell = REG_SET_FIELD(doorbell, SDMA0_GFX_DOORBELL, ENABLE, 1);
 616                 doorbell_offset = REG_SET_FIELD(doorbell_offset, SDMA0_GFX_DOORBELL_OFFSET,
 617                                 OFFSET, ring->doorbell_index);
 618         } else {
 619                 doorbell = REG_SET_FIELD(doorbell, SDMA0_GFX_DOORBELL, ENABLE, 0);
 620         }
 621         WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_DOORBELL), doorbell);
 622         WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_DOORBELL_OFFSET), doorbell_offset);
 623
 624         adev->nbio.funcs->sdma_doorbell_range(adev, i, ring->use_doorbell,
 625                                               ring->doorbell_index,
 626                                               adev->doorbell_index.sdma_doorbell_range);
 627
 628         if (amdgpu_sriov_vf(adev))
 629                 sdma_v5_2_ring_set_wptr(ring);
 630
 631         /* set minor_ptr_update to 0 after wptr programed */
 632
 633         WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_MINOR_PTR_UPDATE), 0);
 634
 635         /* SRIOV VF has no control of any of registers below */
 636         if (!amdgpu_sriov_vf(adev)) {
 637                 /* set utc l1 enable flag always to 1 */
 638                 temp = RREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_CNTL));
 639                 temp = REG_SET_FIELD(temp, SDMA0_CNTL, UTC_L1_ENABLE, 1);
 640
 641                 /* enable MCBP */
 642                 temp = REG_SET_FIELD(temp, SDMA0_CNTL, MIDCMD_PREEMPT_ENABLE, 1);
 643                 WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_CNTL), temp);
 644
 645                 /* Set up RESP_MODE to non-copy addresses */
 646                 temp = RREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_UTCL1_CNTL));
 647                 temp = REG_SET_FIELD(temp, SDMA0_UTCL1_CNTL, RESP_MODE, 3);
 648                 temp = REG_SET_FIELD(temp, SDMA0_UTCL1_CNTL, REDO_DELAY, 9);
 649                 WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_UTCL1_CNTL), temp);
 650
 651                 /* program default cache read and write policy */
 652                 temp = RREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_UTCL1_PAGE));
 653                 /* clean read policy and write policy bits */
 654                 temp &= 0xFF0FFF;
 655                 temp |= ((CACHE_READ_POLICY_L2__DEFAULT << 12) |
 656                          (CACHE_WRITE_POLICY_L2__DEFAULT << 14) |
 657                          SDMA0_UTCL1_PAGE__LLC_NOALLOC_MASK);
 658                 WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_UTCL1_PAGE), temp);
 659
 660                 /* unhalt engine */
 661                 temp = RREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_F32_CNTL));
 662                 temp = REG_SET_FIELD(temp, SDMA0_F32_CNTL, HALT, 0);
 663                 WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_F32_CNTL), temp);
 664         }
 665
 666         /* enable DMA RB */
 667         rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RB_ENABLE, 1);
 668         WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_CNTL), rb_cntl);
 669
 670         ib_cntl = RREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_IB_CNTL));
 671         ib_cntl = REG_SET_FIELD(ib_cntl, SDMA0_GFX_IB_CNTL, IB_ENABLE, 1);
 672 #ifdef __BIG_ENDIAN
 673         ib_cntl = REG_SET_FIELD(ib_cntl, SDMA0_GFX_IB_CNTL, IB_SWAP_ENABLE, 1);
 674 #endif
 675         /* enable DMA IBs */
 676         WREG32_SOC15_IP(GC, sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_IB_CNTL), ib_cntl);
 677
 678         if (amdgpu_sriov_vf(adev)) { /* bare-metal sequence doesn't need below to lines */
 679                 sdma_v5_2_ctx_switch_enable(adev, true);
 680                 sdma_v5_2_enable(adev, true);
 681         }
 682
 683         return amdgpu_ring_test_helper(ring);
 684 }
 685
 686 /**
 687  * sdma_v5_2_gfx_resume - setup and start the async dma engines
 688  *
 689  * @adev: amdgpu_device pointer
 690  *
 691  * Set up the gfx DMA ring buffers and enable them.
 692  * Returns 0 for success, error for failure.
 693  */
 694 static int sdma_v5_2_gfx_resume(struct amdgpu_device *adev)
 695 {
 696         int i, r;
 697
 698         for (i = 0; i < adev->sdma.num_instances; i++) {
 699                 r = sdma_v5_2_gfx_resume_instance(adev, i, false);
 700                 if (r)
 701                         return r;
 702         }
 703
 704         return 0;
 705 }
 706
 707 /**
 708  * sdma_v5_2_rlc_resume - setup and start the async dma engines
 709  *
 710  * @adev: amdgpu_device pointer
 711  *
 712  * Set up the compute DMA queues and enable them.
 713  * Returns 0 for success, error for failure.
 714  */
 715 static int sdma_v5_2_rlc_resume(struct amdgpu_device *adev)
 716 {
 717         return 0;
 718 }
 719
 720 /**
 721  * sdma_v5_2_load_microcode - load the sDMA ME ucode
 722  *
 723  * @adev: amdgpu_device pointer
 724  *
 725  * Loads the sDMA0/1/2/3 ucode.
 726  * Returns 0 for success, -EINVAL if the ucode is not available.
 727  */
 728 static int sdma_v5_2_load_microcode(struct amdgpu_device *adev)
 729 {
 730         const struct sdma_firmware_header_v1_0 *hdr;
 731         const __le32 *fw_data;
 732         u32 fw_size;
 733         int i, j;
 734
 735         /* halt the MEs */
 736         sdma_v5_2_enable(adev, false);
 737
 738         for (i = 0; i < adev->sdma.num_instances; i++) {
 739                 if (!adev->sdma.instance[i].fw)
 740                         return -EINVAL;
 741
 742                 hdr = (const struct sdma_firmware_header_v1_0 *)adev->sdma.instance[i].fw->data;
 743                 amdgpu_ucode_print_sdma_hdr(&hdr->header);
 744                 fw_size = le32_to_cpu(hdr->header.ucode_size_bytes) / 4;
 745
 746                 fw_data = (const __le32 *)
 747                         (adev->sdma.instance[i].fw->data +
 748                                 le32_to_cpu(hdr->header.ucode_array_offset_bytes));
 749
 750                 WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_UCODE_ADDR), 0);
 751
 752                 for (j = 0; j < fw_size; j++) {
 753                         if (amdgpu_emu_mode == 1 && j % 500 == 0)
 754                                 msleep(1);
 755                         WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_UCODE_DATA), le32_to_cpup(fw_data++));
 756                 }
 757
 758                 WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_UCODE_ADDR), adev->sdma.instance[i].fw_version);
 759         }
 760
 761         return 0;
 762 }
 763
 764 static int sdma_v5_2_soft_reset(struct amdgpu_ip_block *ip_block)
 765 {
 766         struct amdgpu_device *adev = ip_block->adev;
 767         u32 grbm_soft_reset;
 768         u32 tmp;
 769         int i;
 770
 771         for (i = 0; i < adev->sdma.num_instances; i++) {
 772                 grbm_soft_reset = REG_SET_FIELD(0,
 773                                                 GRBM_SOFT_RESET, SOFT_RESET_SDMA0,
 774                                                 1);
 775                 grbm_soft_reset <<= i;
 776
 777                 tmp = RREG32_SOC15(GC, 0, mmGRBM_SOFT_RESET);
 778                 tmp |= grbm_soft_reset;
 779                 DRM_DEBUG("GRBM_SOFT_RESET=0x%08X\n", tmp);
 780                 WREG32_SOC15(GC, 0, mmGRBM_SOFT_RESET, tmp);
 781                 tmp = RREG32_SOC15(GC, 0, mmGRBM_SOFT_RESET);
 782
 783                 udelay(50);
 784
 785                 tmp &= ~grbm_soft_reset;
 786                 WREG32_SOC15(GC, 0, mmGRBM_SOFT_RESET, tmp);
 787                 tmp = RREG32_SOC15(GC, 0, mmGRBM_SOFT_RESET);
 788
 789                 udelay(50);
 790         }
 791
 792         return 0;
 793 }
 794
 795 /**
 796  * sdma_v5_2_start - setup and start the async dma engines
 797  *
 798  * @adev: amdgpu_device pointer
 799  *
 800  * Set up the DMA engines and enable them.
 801  * Returns 0 for success, error for failure.
 802  */
 803 static int sdma_v5_2_start(struct amdgpu_device *adev)
 804 {
 805         int r = 0;
 806         struct amdgpu_ip_block *ip_block;
 807
 808         if (amdgpu_sriov_vf(adev)) {
 809                 sdma_v5_2_ctx_switch_enable(adev, false);
 810                 sdma_v5_2_enable(adev, false);
 811
 812                 /* set RB registers */
 813                 r = sdma_v5_2_gfx_resume(adev);
 814                 return r;
 815         }
 816
 817         if (adev->firmware.load_type == AMDGPU_FW_LOAD_DIRECT) {
 818                 r = sdma_v5_2_load_microcode(adev);
 819                 if (r)
 820                         return r;
 821
 822                 /* The value of mmSDMA_F32_CNTL is invalid the moment after loading fw */
 823                 if (amdgpu_emu_mode == 1)
 824                         msleep(1000);
 825         }
 826
 827         ip_block = amdgpu_device_ip_get_ip_block(adev, AMD_IP_BLOCK_TYPE_SDMA);
 828         if (!ip_block)
 829                 return -EINVAL;
 830
 831         sdma_v5_2_soft_reset(ip_block);
 832         /* unhalt the MEs */
 833         sdma_v5_2_enable(adev, true);
 834         /* enable sdma ring preemption */
 835         sdma_v5_2_ctx_switch_enable(adev, true);
 836
 837         /* start the gfx rings and rlc compute queues */
 838         r = sdma_v5_2_gfx_resume(adev);
 839         if (r)
 840                 return r;
 841         r = sdma_v5_2_rlc_resume(adev);
 842
 843         return r;
 844 }
 845
 846 static int sdma_v5_2_mqd_init(struct amdgpu_device *adev, void *mqd,
 847                               struct amdgpu_mqd_prop *prop)
 848 {
 849         struct v10_sdma_mqd *m = mqd;
 850         uint64_t wb_gpu_addr;
 851
 852         m->sdmax_rlcx_rb_cntl =
 853                 order_base_2(prop->queue_size / 4) << SDMA0_RLC0_RB_CNTL__RB_SIZE__SHIFT |
 854                 1 << SDMA0_RLC0_RB_CNTL__RPTR_WRITEBACK_ENABLE__SHIFT |
 855                 6 << SDMA0_RLC0_RB_CNTL__RPTR_WRITEBACK_TIMER__SHIFT |
 856                 1 << SDMA0_RLC0_RB_CNTL__RB_PRIV__SHIFT;
 857
 858         m->sdmax_rlcx_rb_base = lower_32_bits(prop->hqd_base_gpu_addr >> 8);
 859         m->sdmax_rlcx_rb_base_hi = upper_32_bits(prop->hqd_base_gpu_addr >> 8);
 860
 861         m->sdmax_rlcx_rb_wptr_poll_cntl = RREG32(sdma_v5_2_get_reg_offset(adev, 0,
 862                                                   mmSDMA0_GFX_RB_WPTR_POLL_CNTL));
 863
 864         wb_gpu_addr = prop->wptr_gpu_addr;
 865         m->sdmax_rlcx_rb_wptr_poll_addr_lo = lower_32_bits(wb_gpu_addr);
 866         m->sdmax_rlcx_rb_wptr_poll_addr_hi = upper_32_bits(wb_gpu_addr);
 867
 868         wb_gpu_addr = prop->rptr_gpu_addr;
 869         m->sdmax_rlcx_rb_rptr_addr_lo = lower_32_bits(wb_gpu_addr);
 870         m->sdmax_rlcx_rb_rptr_addr_hi = upper_32_bits(wb_gpu_addr);
 871
 872         m->sdmax_rlcx_ib_cntl = RREG32(sdma_v5_2_get_reg_offset(adev, 0,
 873                                                         mmSDMA0_GFX_IB_CNTL));
 874
 875         m->sdmax_rlcx_doorbell_offset =
 876                 prop->doorbell_index << SDMA0_RLC0_DOORBELL_OFFSET__OFFSET__SHIFT;
 877
 878         m->sdmax_rlcx_doorbell = REG_SET_FIELD(0, SDMA0_RLC0_DOORBELL, ENABLE, 1);
 879
 880         return 0;
 881 }
 882
 883 static void sdma_v5_2_set_mqd_funcs(struct amdgpu_device *adev)
 884 {
 885         adev->mqds[AMDGPU_HW_IP_DMA].mqd_size = sizeof(struct v10_sdma_mqd);
 886         adev->mqds[AMDGPU_HW_IP_DMA].init_mqd = sdma_v5_2_mqd_init;
 887 }
 888
 889 /**
 890  * sdma_v5_2_ring_test_ring - simple async dma engine test
 891  *
 892  * @ring: amdgpu_ring structure holding ring information
 893  *
 894  * Test the DMA engine by writing using it to write an
 895  * value to memory.
 896  * Returns 0 for success, error for failure.
 897  */
 898 static int sdma_v5_2_ring_test_ring(struct amdgpu_ring *ring)
 899 {
 900         struct amdgpu_device *adev = ring->adev;
 901         unsigned i;
 902         unsigned index;
 903         int r;
 904         u32 tmp;
 905         u64 gpu_addr;
 906         volatile uint32_t *cpu_ptr = NULL;
 907
 908         tmp = 0xCAFEDEAD;
 909
 910         if (ring->is_mes_queue) {
 911                 uint32_t offset = 0;
 912                 offset = amdgpu_mes_ctx_get_offs(ring,
 913                                          AMDGPU_MES_CTX_PADDING_OFFS);
 914                 gpu_addr = amdgpu_mes_ctx_get_offs_gpu_addr(ring, offset);
 915                 cpu_ptr = amdgpu_mes_ctx_get_offs_cpu_addr(ring, offset);
 916                 *cpu_ptr = tmp;
 917         } else {
 918                 r = amdgpu_device_wb_get(adev, &index);
 919                 if (r) {
 920                         dev_err(adev->dev, "(%d) failed to allocate wb slot\n", r);
 921                         return r;
 922                 }
 923
 924                 gpu_addr = adev->wb.gpu_addr + (index * 4);
 925                 adev->wb.wb[index] = cpu_to_le32(tmp);
 926         }
 927
 928         r = amdgpu_ring_alloc(ring, 20);
 929         if (r) {
 930                 DRM_ERROR("amdgpu: dma failed to lock ring %d (%d).\n", ring->idx, r);
 931                 if (!ring->is_mes_queue)
 932                         amdgpu_device_wb_free(adev, index);
 933                 return r;
 934         }
 935
 936         amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_WRITE) |
 937                           SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_WRITE_LINEAR));
 938         amdgpu_ring_write(ring, lower_32_bits(gpu_addr));
 939         amdgpu_ring_write(ring, upper_32_bits(gpu_addr));
 940         amdgpu_ring_write(ring, SDMA_PKT_WRITE_UNTILED_DW_3_COUNT(0));
 941         amdgpu_ring_write(ring, 0xDEADBEEF);
 942         amdgpu_ring_commit(ring);
 943
 944         for (i = 0; i < adev->usec_timeout; i++) {
 945                 if (ring->is_mes_queue)
 946                         tmp = le32_to_cpu(*cpu_ptr);
 947                 else
 948                         tmp = le32_to_cpu(adev->wb.wb[index]);
 949                 if (tmp == 0xDEADBEEF)
 950                         break;
 951                 if (amdgpu_emu_mode == 1)
 952                         msleep(1);
 953                 else
 954                         udelay(1);
 955         }
 956
 957         if (i >= adev->usec_timeout)
 958                 r = -ETIMEDOUT;
 959
 960         if (!ring->is_mes_queue)
 961                 amdgpu_device_wb_free(adev, index);
 962
 963         return r;
 964 }
 965
 966 /**
 967  * sdma_v5_2_ring_test_ib - test an IB on the DMA engine
 968  *
 969  * @ring: amdgpu_ring structure holding ring information
 970  * @timeout: timeout value in jiffies, or MAX_SCHEDULE_TIMEOUT
 971  *
 972  * Test a simple IB in the DMA ring.
 973  * Returns 0 on success, error on failure.
 974  */
 975 static int sdma_v5_2_ring_test_ib(struct amdgpu_ring *ring, long timeout)
 976 {
 977         struct amdgpu_device *adev = ring->adev;
 978         struct amdgpu_ib ib;
 979         struct dma_fence *f = NULL;
 980         unsigned index;
 981         long r;
 982         u32 tmp = 0;
 983         u64 gpu_addr;
 984         volatile uint32_t *cpu_ptr = NULL;
 985
 986         tmp = 0xCAFEDEAD;
 987         memset(&ib, 0, sizeof(ib));
 988
 989         if (ring->is_mes_queue) {
 990                 uint32_t offset = 0;
 991                 offset = amdgpu_mes_ctx_get_offs(ring, AMDGPU_MES_CTX_IB_OFFS);
 992                 ib.gpu_addr = amdgpu_mes_ctx_get_offs_gpu_addr(ring, offset);
 993                 ib.ptr = (void *)amdgpu_mes_ctx_get_offs_cpu_addr(ring, offset);
 994
 995                 offset = amdgpu_mes_ctx_get_offs(ring,
 996                                          AMDGPU_MES_CTX_PADDING_OFFS);
 997                 gpu_addr = amdgpu_mes_ctx_get_offs_gpu_addr(ring, offset);
 998                 cpu_ptr = amdgpu_mes_ctx_get_offs_cpu_addr(ring, offset);
 999                 *cpu_ptr = tmp;
1000         } else {
1001                 r = amdgpu_device_wb_get(adev, &index);
1002                 if (r) {
1003                         dev_err(adev->dev, "(%ld) failed to allocate wb slot\n", r);
1004                         return r;
1005                 }
1006
1007                 gpu_addr = adev->wb.gpu_addr + (index * 4);
1008                 adev->wb.wb[index] = cpu_to_le32(tmp);
1009
1010                 r = amdgpu_ib_get(adev, NULL, 256, AMDGPU_IB_POOL_DIRECT, &ib);
1011                 if (r) {
1012                         DRM_ERROR("amdgpu: failed to get ib (%ld).\n", r);
1013                         goto err0;
1014                 }
1015         }
1016
1017         ib.ptr[0] = SDMA_PKT_HEADER_OP(SDMA_OP_WRITE) |
1018                 SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_WRITE_LINEAR);
1019         ib.ptr[1] = lower_32_bits(gpu_addr);
1020         ib.ptr[2] = upper_32_bits(gpu_addr);
1021         ib.ptr[3] = SDMA_PKT_WRITE_UNTILED_DW_3_COUNT(0);
1022         ib.ptr[4] = 0xDEADBEEF;
1023         ib.ptr[5] = SDMA_PKT_NOP_HEADER_OP(SDMA_OP_NOP);
1024         ib.ptr[6] = SDMA_PKT_NOP_HEADER_OP(SDMA_OP_NOP);
1025         ib.ptr[7] = SDMA_PKT_NOP_HEADER_OP(SDMA_OP_NOP);
1026         ib.length_dw = 8;
1027
1028         r = amdgpu_ib_schedule(ring, 1, &ib, NULL, &f);
1029         if (r)
1030                 goto err1;
1031
1032         r = dma_fence_wait_timeout(f, false, timeout);
1033         if (r == 0) {
1034                 DRM_ERROR("amdgpu: IB test timed out\n");
1035                 r = -ETIMEDOUT;
1036                 goto err1;
1037         } else if (r < 0) {
1038                 DRM_ERROR("amdgpu: fence wait failed (%ld).\n", r);
1039                 goto err1;
1040         }
1041
1042         if (ring->is_mes_queue)
1043                 tmp = le32_to_cpu(*cpu_ptr);
1044         else
1045                 tmp = le32_to_cpu(adev->wb.wb[index]);
1046
1047         if (tmp == 0xDEADBEEF)
1048                 r = 0;
1049         else
1050                 r = -EINVAL;
1051
1052 err1:
1053         amdgpu_ib_free(&ib, NULL);
1054         dma_fence_put(f);
1055 err0:
1056         if (!ring->is_mes_queue)
1057                 amdgpu_device_wb_free(adev, index);
1058         return r;
1059 }
1060
1061
1062 /**
1063  * sdma_v5_2_vm_copy_pte - update PTEs by copying them from the GART
1064  *
1065  * @ib: indirect buffer to fill with commands
1066  * @pe: addr of the page entry
1067  * @src: src addr to copy from
1068  * @count: number of page entries to update
1069  *
1070  * Update PTEs by copying them from the GART using sDMA.
1071  */
1072 static void sdma_v5_2_vm_copy_pte(struct amdgpu_ib *ib,
1073                                   uint64_t pe, uint64_t src,
1074                                   unsigned count)
1075 {
1076         unsigned bytes = count * 8;
1077
1078         ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_COPY) |
1079                 SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_COPY_LINEAR);
1080         ib->ptr[ib->length_dw++] = bytes - 1;
1081         ib->ptr[ib->length_dw++] = 0; /* src/dst endian swap */
1082         ib->ptr[ib->length_dw++] = lower_32_bits(src);
1083         ib->ptr[ib->length_dw++] = upper_32_bits(src);
1084         ib->ptr[ib->length_dw++] = lower_32_bits(pe);
1085         ib->ptr[ib->length_dw++] = upper_32_bits(pe);
1086
1087 }
1088
1089 /**
1090  * sdma_v5_2_vm_write_pte - update PTEs by writing them manually
1091  *
1092  * @ib: indirect buffer to fill with commands
1093  * @pe: addr of the page entry
1094  * @value: dst addr to write into pe
1095  * @count: number of page entries to update
1096  * @incr: increase next addr by incr bytes
1097  *
1098  * Update PTEs by writing them manually using sDMA.
1099  */
1100 static void sdma_v5_2_vm_write_pte(struct amdgpu_ib *ib, uint64_t pe,
1101                                    uint64_t value, unsigned count,
1102                                    uint32_t incr)
1103 {
1104         unsigned ndw = count * 2;
1105
1106         ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_WRITE) |
1107                 SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_WRITE_LINEAR);
1108         ib->ptr[ib->length_dw++] = lower_32_bits(pe);
1109         ib->ptr[ib->length_dw++] = upper_32_bits(pe);
1110         ib->ptr[ib->length_dw++] = ndw - 1;
1111         for (; ndw > 0; ndw -= 2) {
1112                 ib->ptr[ib->length_dw++] = lower_32_bits(value);
1113                 ib->ptr[ib->length_dw++] = upper_32_bits(value);
1114                 value += incr;
1115         }
1116 }
1117
1118 /**
1119  * sdma_v5_2_vm_set_pte_pde - update the page tables using sDMA
1120  *
1121  * @ib: indirect buffer to fill with commands
1122  * @pe: addr of the page entry
1123  * @addr: dst addr to write into pe
1124  * @count: number of page entries to update
1125  * @incr: increase next addr by incr bytes
1126  * @flags: access flags
1127  *
1128  * Update the page tables using sDMA.
1129  */
1130 static void sdma_v5_2_vm_set_pte_pde(struct amdgpu_ib *ib,
1131                                      uint64_t pe,
1132                                      uint64_t addr, unsigned count,
1133                                      uint32_t incr, uint64_t flags)
1134 {
1135         /* for physically contiguous pages (vram) */
1136         ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_PTEPDE);
1137         ib->ptr[ib->length_dw++] = lower_32_bits(pe); /* dst addr */
1138         ib->ptr[ib->length_dw++] = upper_32_bits(pe);
1139         ib->ptr[ib->length_dw++] = lower_32_bits(flags); /* mask */
1140         ib->ptr[ib->length_dw++] = upper_32_bits(flags);
1141         ib->ptr[ib->length_dw++] = lower_32_bits(addr); /* value */
1142         ib->ptr[ib->length_dw++] = upper_32_bits(addr);
1143         ib->ptr[ib->length_dw++] = incr; /* increment size */
1144         ib->ptr[ib->length_dw++] = 0;
1145         ib->ptr[ib->length_dw++] = count - 1; /* number of entries */
1146 }
1147
1148 /**
1149  * sdma_v5_2_ring_pad_ib - pad the IB
1150  *
1151  * @ib: indirect buffer to fill with padding
1152  * @ring: amdgpu_ring structure holding ring information
1153  *
1154  * Pad the IB with NOPs to a boundary multiple of 8.
1155  */
1156 static void sdma_v5_2_ring_pad_ib(struct amdgpu_ring *ring, struct amdgpu_ib *ib)
1157 {
1158         struct amdgpu_sdma_instance *sdma = amdgpu_sdma_get_instance_from_ring(ring);
1159         u32 pad_count;
1160         int i;
1161
1162         pad_count = (-ib->length_dw) & 0x7;
1163         for (i = 0; i < pad_count; i++)
1164                 if (sdma && sdma->burst_nop && (i == 0))
1165                         ib->ptr[ib->length_dw++] =
1166                                 SDMA_PKT_HEADER_OP(SDMA_OP_NOP) |
1167                                 SDMA_PKT_NOP_HEADER_COUNT(pad_count - 1);
1168                 else
1169                         ib->ptr[ib->length_dw++] =
1170                                 SDMA_PKT_HEADER_OP(SDMA_OP_NOP);
1171 }
1172
1173
1174 /**
1175  * sdma_v5_2_ring_emit_pipeline_sync - sync the pipeline
1176  *
1177  * @ring: amdgpu_ring pointer
1178  *
1179  * Make sure all previous operations are completed (CIK).
1180  */
1181 static void sdma_v5_2_ring_emit_pipeline_sync(struct amdgpu_ring *ring)
1182 {
1183         uint32_t seq = ring->fence_drv.sync_seq;
1184         uint64_t addr = ring->fence_drv.gpu_addr;
1185
1186         /* wait for idle */
1187         amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_POLL_REGMEM) |
1188                           SDMA_PKT_POLL_REGMEM_HEADER_HDP_FLUSH(0) |
1189                           SDMA_PKT_POLL_REGMEM_HEADER_FUNC(3) | /* equal */
1190                           SDMA_PKT_POLL_REGMEM_HEADER_MEM_POLL(1));
1191         amdgpu_ring_write(ring, addr & 0xfffffffc);
1192         amdgpu_ring_write(ring, upper_32_bits(addr) & 0xffffffff);
1193         amdgpu_ring_write(ring, seq); /* reference */
1194         amdgpu_ring_write(ring, 0xffffffff); /* mask */
1195         amdgpu_ring_write(ring, SDMA_PKT_POLL_REGMEM_DW5_RETRY_COUNT(0xfff) |
1196                           SDMA_PKT_POLL_REGMEM_DW5_INTERVAL(4)); /* retry count, poll interval */
1197 }
1198
1199
1200 /**
1201  * sdma_v5_2_ring_emit_vm_flush - vm flush using sDMA
1202  *
1203  * @ring: amdgpu_ring pointer
1204  * @vmid: vmid number to use
1205  * @pd_addr: address
1206  *
1207  * Update the page table base and flush the VM TLB
1208  * using sDMA.
1209  */
1210 static void sdma_v5_2_ring_emit_vm_flush(struct amdgpu_ring *ring,
1211                                          unsigned vmid, uint64_t pd_addr)
1212 {
1213         struct amdgpu_vmhub *hub = &ring->adev->vmhub[ring->vm_hub];
1214         uint32_t req = hub->vmhub_funcs->get_invalidate_req(vmid, 0);
1215
1216         /* Update the PD address for this VMID. */
1217         amdgpu_ring_emit_wreg(ring, hub->ctx0_ptb_addr_lo32 +
1218                               (hub->ctx_addr_distance * vmid),
1219                               lower_32_bits(pd_addr));
1220         amdgpu_ring_emit_wreg(ring, hub->ctx0_ptb_addr_hi32 +
1221                               (hub->ctx_addr_distance * vmid),
1222                               upper_32_bits(pd_addr));
1223
1224         /* Trigger invalidation. */
1225         amdgpu_ring_write(ring,
1226                           SDMA_PKT_VM_INVALIDATION_HEADER_OP(SDMA_OP_POLL_REGMEM) |
1227                           SDMA_PKT_VM_INVALIDATION_HEADER_SUB_OP(SDMA_SUBOP_VM_INVALIDATION) |
1228                           SDMA_PKT_VM_INVALIDATION_HEADER_GFX_ENG_ID(ring->vm_inv_eng) |
1229                           SDMA_PKT_VM_INVALIDATION_HEADER_MM_ENG_ID(0x1f));
1230         amdgpu_ring_write(ring, req);
1231         amdgpu_ring_write(ring, 0xFFFFFFFF);
1232         amdgpu_ring_write(ring,
1233                           SDMA_PKT_VM_INVALIDATION_ADDRESSRANGEHI_INVALIDATEACK(1 << vmid) |
1234                           SDMA_PKT_VM_INVALIDATION_ADDRESSRANGEHI_ADDRESSRANGEHI(0x1F));
1235 }
1236
1237 static void sdma_v5_2_ring_emit_wreg(struct amdgpu_ring *ring,
1238                                      uint32_t reg, uint32_t val)
1239 {
1240         amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_SRBM_WRITE) |
1241                           SDMA_PKT_SRBM_WRITE_HEADER_BYTE_EN(0xf));
1242         amdgpu_ring_write(ring, reg);
1243         amdgpu_ring_write(ring, val);
1244 }
1245
1246 static void sdma_v5_2_ring_emit_reg_wait(struct amdgpu_ring *ring, uint32_t reg,
1247                                          uint32_t val, uint32_t mask)
1248 {
1249         amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_POLL_REGMEM) |
1250                           SDMA_PKT_POLL_REGMEM_HEADER_HDP_FLUSH(0) |
1251                           SDMA_PKT_POLL_REGMEM_HEADER_FUNC(3)); /* equal */
1252         amdgpu_ring_write(ring, reg << 2);
1253         amdgpu_ring_write(ring, 0);
1254         amdgpu_ring_write(ring, val); /* reference */
1255         amdgpu_ring_write(ring, mask); /* mask */
1256         amdgpu_ring_write(ring, SDMA_PKT_POLL_REGMEM_DW5_RETRY_COUNT(0xfff) |
1257                           SDMA_PKT_POLL_REGMEM_DW5_INTERVAL(10));
1258 }
1259
1260 static void sdma_v5_2_ring_emit_reg_write_reg_wait(struct amdgpu_ring *ring,
1261                                                    uint32_t reg0, uint32_t reg1,
1262                                                    uint32_t ref, uint32_t mask)
1263 {
1264         amdgpu_ring_emit_wreg(ring, reg0, ref);
1265         /* wait for a cycle to reset vm_inv_eng*_ack */
1266         amdgpu_ring_emit_reg_wait(ring, reg0, 0, 0);
1267         amdgpu_ring_emit_reg_wait(ring, reg1, mask, mask);
1268 }
1269
1270 static int sdma_v5_2_early_init(struct amdgpu_ip_block *ip_block)
1271 {
1272         struct amdgpu_device *adev = ip_block->adev;
1273         int r;
1274
1275         r = amdgpu_sdma_init_microcode(adev, 0, true);
1276         if (r)
1277                 return r;
1278
1279         sdma_v5_2_set_ring_funcs(adev);
1280         sdma_v5_2_set_buffer_funcs(adev);
1281         sdma_v5_2_set_vm_pte_funcs(adev);
1282         sdma_v5_2_set_irq_funcs(adev);
1283         sdma_v5_2_set_mqd_funcs(adev);
1284
1285         return 0;
1286 }
1287
1288 static unsigned sdma_v5_2_seq_to_irq_id(int seq_num)
1289 {
1290         switch (seq_num) {
1291         case 0:
1292                 return SOC15_IH_CLIENTID_SDMA0;
1293         case 1:
1294                 return SOC15_IH_CLIENTID_SDMA1;
1295         case 2:
1296                 return SOC15_IH_CLIENTID_SDMA2;
1297         case 3:
1298                 return SOC15_IH_CLIENTID_SDMA3_Sienna_Cichlid;
1299         default:
1300                 break;
1301         }
1302         return -EINVAL;
1303 }
1304
1305 static unsigned sdma_v5_2_seq_to_trap_id(int seq_num)
1306 {
1307         switch (seq_num) {
1308         case 0:
1309                 return SDMA0_5_0__SRCID__SDMA_TRAP;
1310         case 1:
1311                 return SDMA1_5_0__SRCID__SDMA_TRAP;
1312         case 2:
1313                 return SDMA2_5_0__SRCID__SDMA_TRAP;
1314         case 3:
1315                 return SDMA3_5_0__SRCID__SDMA_TRAP;
1316         default:
1317                 break;
1318         }
1319         return -EINVAL;
1320 }
1321
1322 static int sdma_v5_2_sw_init(struct amdgpu_ip_block *ip_block)
1323 {
1324         struct amdgpu_ring *ring;
1325         int r, i;
1326         struct amdgpu_device *adev = ip_block->adev;
1327         uint32_t reg_count = ARRAY_SIZE(sdma_reg_list_5_2);
1328         uint32_t *ptr;
1329
1330         /* SDMA trap event */
1331         for (i = 0; i < adev->sdma.num_instances; i++) {
1332                 r = amdgpu_irq_add_id(adev, sdma_v5_2_seq_to_irq_id(i),
1333                                       sdma_v5_2_seq_to_trap_id(i),
1334                                       &adev->sdma.trap_irq);
1335                 if (r)
1336                         return r;
1337         }
1338
1339         for (i = 0; i < adev->sdma.num_instances; i++) {
1340                 ring = &adev->sdma.instance[i].ring;
1341                 ring->ring_obj = NULL;
1342                 ring->use_doorbell = true;
1343                 ring->me = i;
1344
1345                 DRM_INFO("use_doorbell being set to: [%s]\n",
1346                                 ring->use_doorbell?"true":"false");
1347
1348                 ring->doorbell_index =
1349                         (adev->doorbell_index.sdma_engine[i] << 1); //get DWORD offset
1350
1351                 ring->vm_hub = AMDGPU_GFXHUB(0);
1352                 sprintf(ring->name, "sdma%d", i);
1353                 r = amdgpu_ring_init(adev, ring, 1024, &adev->sdma.trap_irq,
1354                                      AMDGPU_SDMA_IRQ_INSTANCE0 + i,
1355                                      AMDGPU_RING_PRIO_DEFAULT, NULL);
1356                 if (r)
1357                         return r;
1358         }
1359
1360         adev->sdma.supported_reset =
1361                 amdgpu_get_soft_full_reset_mask(&adev->sdma.instance[0].ring);
1362         switch (amdgpu_ip_version(adev, SDMA0_HWIP, 0)) {
1363         case IP_VERSION(5, 2, 0):
1364         case IP_VERSION(5, 2, 2):
1365         case IP_VERSION(5, 2, 3):
1366         case IP_VERSION(5, 2, 4):
1367                 if (adev->sdma.instance[0].fw_version >= 76)
1368                         adev->sdma.supported_reset |= AMDGPU_RESET_TYPE_PER_QUEUE;
1369                 break;
1370         case IP_VERSION(5, 2, 5):
1371                 if (adev->sdma.instance[0].fw_version >= 34)
1372                         adev->sdma.supported_reset |= AMDGPU_RESET_TYPE_PER_QUEUE;
1373                 break;
1374         default:
1375                 break;
1376         }
1377
1378         /* Allocate memory for SDMA IP Dump buffer */
1379         ptr = kcalloc(adev->sdma.num_instances * reg_count, sizeof(uint32_t), GFP_KERNEL);
1380         if (ptr)
1381                 adev->sdma.ip_dump = ptr;
1382         else
1383                 DRM_ERROR("Failed to allocated memory for SDMA IP Dump\n");
1384
1385         r = amdgpu_sdma_sysfs_reset_mask_init(adev);
1386         if (r)
1387                 return r;
1388
1389         return r;
1390 }
1391
1392 static int sdma_v5_2_sw_fini(struct amdgpu_ip_block *ip_block)
1393 {
1394         struct amdgpu_device *adev = ip_block->adev;
1395         int i;
1396
1397         for (i = 0; i < adev->sdma.num_instances; i++)
1398                 amdgpu_ring_fini(&adev->sdma.instance[i].ring);
1399
1400         amdgpu_sdma_sysfs_reset_mask_fini(adev);
1401         amdgpu_sdma_destroy_inst_ctx(adev, true);
1402
1403         kfree(adev->sdma.ip_dump);
1404
1405         return 0;
1406 }
1407
1408 static int sdma_v5_2_hw_init(struct amdgpu_ip_block *ip_block)
1409 {
1410         struct amdgpu_device *adev = ip_block->adev;
1411
1412         return sdma_v5_2_start(adev);
1413 }
1414
1415 static int sdma_v5_2_hw_fini(struct amdgpu_ip_block *ip_block)
1416 {
1417         struct amdgpu_device *adev = ip_block->adev;
1418
1419         if (amdgpu_sriov_vf(adev))
1420                 return 0;
1421
1422         sdma_v5_2_ctx_switch_enable(adev, false);
1423         sdma_v5_2_enable(adev, false);
1424
1425         return 0;
1426 }
1427
1428 static int sdma_v5_2_suspend(struct amdgpu_ip_block *ip_block)
1429 {
1430         return sdma_v5_2_hw_fini(ip_block);
1431 }
1432
1433 static int sdma_v5_2_resume(struct amdgpu_ip_block *ip_block)
1434 {
1435         return sdma_v5_2_hw_init(ip_block);
1436 }
1437
1438 static bool sdma_v5_2_is_idle(void *handle)
1439 {
1440         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1441         u32 i;
1442
1443         for (i = 0; i < adev->sdma.num_instances; i++) {
1444                 u32 tmp = RREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_STATUS_REG));
1445
1446                 if (!(tmp & SDMA0_STATUS_REG__IDLE_MASK))
1447                         return false;
1448         }
1449
1450         return true;
1451 }
1452
1453 static int sdma_v5_2_wait_for_idle(struct amdgpu_ip_block *ip_block)
1454 {
1455         unsigned i;
1456         u32 sdma0, sdma1, sdma2, sdma3;
1457         struct amdgpu_device *adev = ip_block->adev;
1458
1459         for (i = 0; i < adev->usec_timeout; i++) {
1460                 sdma0 = RREG32(sdma_v5_2_get_reg_offset(adev, 0, mmSDMA0_STATUS_REG));
1461                 sdma1 = RREG32(sdma_v5_2_get_reg_offset(adev, 1, mmSDMA0_STATUS_REG));
1462                 sdma2 = RREG32(sdma_v5_2_get_reg_offset(adev, 2, mmSDMA0_STATUS_REG));
1463                 sdma3 = RREG32(sdma_v5_2_get_reg_offset(adev, 3, mmSDMA0_STATUS_REG));
1464
1465                 if (sdma0 & sdma1 & sdma2 & sdma3 & SDMA0_STATUS_REG__IDLE_MASK)
1466                         return 0;
1467                 udelay(1);
1468         }
1469         return -ETIMEDOUT;
1470 }
1471
1472 static int sdma_v5_2_reset_queue(struct amdgpu_ring *ring, unsigned int vmid)
1473 {
1474         struct amdgpu_device *adev = ring->adev;
1475         int i, j, r;
1476         u32 rb_cntl, ib_cntl, f32_cntl, freeze, cntl, preempt, soft_reset, stat1_reg;
1477
1478         if (amdgpu_sriov_vf(adev))
1479                 return -EINVAL;
1480
1481         for (i = 0; i < adev->sdma.num_instances; i++) {
1482                 if (ring == &adev->sdma.instance[i].ring)
1483                         break;
1484         }
1485
1486         if (i == adev->sdma.num_instances) {
1487                 DRM_ERROR("sdma instance not found\n");
1488                 return -EINVAL;
1489         }
1490
1491         amdgpu_gfx_rlc_enter_safe_mode(adev, 0);
1492
1493         /* stop queue */
1494         ib_cntl = RREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_IB_CNTL));
1495         ib_cntl = REG_SET_FIELD(ib_cntl, SDMA0_GFX_IB_CNTL, IB_ENABLE, 0);
1496         WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_IB_CNTL), ib_cntl);
1497
1498         rb_cntl = RREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_CNTL));
1499         rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RB_ENABLE, 0);
1500         WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_RB_CNTL), rb_cntl);
1501
1502         /*engine stop SDMA1_F32_CNTL.HALT to 1 and SDMAx_FREEZE freeze bit to 1 */
1503         freeze = RREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_FREEZE));
1504         freeze = REG_SET_FIELD(freeze, SDMA0_FREEZE, FREEZE, 1);
1505         WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_FREEZE), freeze);
1506
1507         for (j = 0; j < adev->usec_timeout; j++) {
1508                 freeze = RREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_FREEZE));
1509
1510                 if (REG_GET_FIELD(freeze, SDMA0_FREEZE, FROZEN) & 1)
1511                         break;
1512                 udelay(1);
1513         }
1514
1515
1516         if (j == adev->usec_timeout) {
1517                 stat1_reg = RREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_STATUS1_REG));
1518                 if ((stat1_reg & 0x3FF) != 0x3FF) {
1519                         DRM_ERROR("cannot soft reset as sdma not idle\n");
1520                         r = -ETIMEDOUT;
1521                         goto err0;
1522                 }
1523         }
1524
1525         f32_cntl = RREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_F32_CNTL));
1526         f32_cntl = REG_SET_FIELD(f32_cntl, SDMA0_F32_CNTL, HALT, 1);
1527         WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_F32_CNTL), f32_cntl);
1528
1529         cntl = RREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_CNTL));
1530         cntl = REG_SET_FIELD(cntl, SDMA0_CNTL, UTC_L1_ENABLE, 0);
1531         WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_CNTL), cntl);
1532
1533         /* soft reset SDMA_GFX_PREEMPT.IB_PREEMPT = 0 mmGRBM_SOFT_RESET.SOFT_RESET_SDMA0/1 = 1 */
1534         preempt = RREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_PREEMPT));
1535         preempt = REG_SET_FIELD(preempt, SDMA0_GFX_PREEMPT, IB_PREEMPT, 0);
1536         WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_GFX_PREEMPT), preempt);
1537
1538         soft_reset = RREG32_SOC15(GC, 0, mmGRBM_SOFT_RESET);
1539         soft_reset |= 1 << GRBM_SOFT_RESET__SOFT_RESET_SDMA0__SHIFT << i;
1540
1541
1542         WREG32_SOC15(GC, 0, mmGRBM_SOFT_RESET, soft_reset);
1543
1544         udelay(50);
1545
1546         soft_reset &= ~(1 << GRBM_SOFT_RESET__SOFT_RESET_SDMA0__SHIFT << i);
1547
1548         WREG32_SOC15(GC, 0, mmGRBM_SOFT_RESET, soft_reset);
1549
1550         /* unfreeze and unhalt */
1551         freeze = RREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_FREEZE));
1552         freeze = REG_SET_FIELD(freeze, SDMA0_FREEZE, FREEZE, 0);
1553         WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_FREEZE), freeze);
1554
1555         r = sdma_v5_2_gfx_resume_instance(adev, i, true);
1556
1557 err0:
1558         amdgpu_gfx_rlc_exit_safe_mode(adev, 0);
1559         return r;
1560 }
1561
1562 static int sdma_v5_2_ring_preempt_ib(struct amdgpu_ring *ring)
1563 {
1564         int i, r = 0;
1565         struct amdgpu_device *adev = ring->adev;
1566         u32 index = 0;
1567         u64 sdma_gfx_preempt;
1568
1569         amdgpu_sdma_get_index_from_ring(ring, &index);
1570         sdma_gfx_preempt =
1571                 sdma_v5_2_get_reg_offset(adev, index, mmSDMA0_GFX_PREEMPT);
1572
1573         /* assert preemption condition */
1574         amdgpu_ring_set_preempt_cond_exec(ring, false);
1575
1576         /* emit the trailing fence */
1577         ring->trail_seq += 1;
1578         amdgpu_ring_alloc(ring, 10);
1579         sdma_v5_2_ring_emit_fence(ring, ring->trail_fence_gpu_addr,
1580                                   ring->trail_seq, 0);
1581         amdgpu_ring_commit(ring);
1582
1583         /* assert IB preemption */
1584         WREG32(sdma_gfx_preempt, 1);
1585
1586         /* poll the trailing fence */
1587         for (i = 0; i < adev->usec_timeout; i++) {
1588                 if (ring->trail_seq ==
1589                     le32_to_cpu(*(ring->trail_fence_cpu_addr)))
1590                         break;
1591                 udelay(1);
1592         }
1593
1594         if (i >= adev->usec_timeout) {
1595                 r = -EINVAL;
1596                 DRM_ERROR("ring %d failed to be preempted\n", ring->idx);
1597         }
1598
1599         /* deassert IB preemption */
1600         WREG32(sdma_gfx_preempt, 0);
1601
1602         /* deassert the preemption condition */
1603         amdgpu_ring_set_preempt_cond_exec(ring, true);
1604         return r;
1605 }
1606
1607 static int sdma_v5_2_set_trap_irq_state(struct amdgpu_device *adev,
1608                                         struct amdgpu_irq_src *source,
1609                                         unsigned type,
1610                                         enum amdgpu_interrupt_state state)
1611 {
1612         u32 sdma_cntl;
1613         u32 reg_offset = sdma_v5_2_get_reg_offset(adev, type, mmSDMA0_CNTL);
1614
1615         if (!amdgpu_sriov_vf(adev)) {
1616                 sdma_cntl = RREG32(reg_offset);
1617                 sdma_cntl = REG_SET_FIELD(sdma_cntl, SDMA0_CNTL, TRAP_ENABLE,
1618                                state == AMDGPU_IRQ_STATE_ENABLE ? 1 : 0);
1619                 WREG32(reg_offset, sdma_cntl);
1620         }
1621
1622         return 0;
1623 }
1624
1625 static int sdma_v5_2_process_trap_irq(struct amdgpu_device *adev,
1626                                       struct amdgpu_irq_src *source,
1627                                       struct amdgpu_iv_entry *entry)
1628 {
1629         uint32_t mes_queue_id = entry->src_data[0];
1630
1631         DRM_DEBUG("IH: SDMA trap\n");
1632
1633         if (adev->enable_mes && (mes_queue_id & AMDGPU_FENCE_MES_QUEUE_FLAG)) {
1634                 struct amdgpu_mes_queue *queue;
1635
1636                 mes_queue_id &= AMDGPU_FENCE_MES_QUEUE_ID_MASK;
1637
1638                 spin_lock(&adev->mes.queue_id_lock);
1639                 queue = idr_find(&adev->mes.queue_id_idr, mes_queue_id);
1640                 if (queue) {
1641                         DRM_DEBUG("process smda queue id = %d\n", mes_queue_id);
1642                         amdgpu_fence_process(queue->ring);
1643                 }
1644                 spin_unlock(&adev->mes.queue_id_lock);
1645                 return 0;
1646         }
1647
1648         switch (entry->client_id) {
1649         case SOC15_IH_CLIENTID_SDMA0:
1650                 switch (entry->ring_id) {
1651                 case 0:
1652                         amdgpu_fence_process(&adev->sdma.instance[0].ring);
1653                         break;
1654                 case 1:
1655                         /* XXX compute */
1656                         break;
1657                 case 2:
1658                         /* XXX compute */
1659                         break;
1660                 case 3:
1661                         /* XXX page queue*/
1662                         break;
1663                 }
1664                 break;
1665         case SOC15_IH_CLIENTID_SDMA1:
1666                 switch (entry->ring_id) {
1667                 case 0:
1668                         amdgpu_fence_process(&adev->sdma.instance[1].ring);
1669                         break;
1670                 case 1:
1671                         /* XXX compute */
1672                         break;
1673                 case 2:
1674                         /* XXX compute */
1675                         break;
1676                 case 3:
1677                         /* XXX page queue*/
1678                         break;
1679                 }
1680                 break;
1681         case SOC15_IH_CLIENTID_SDMA2:
1682                 switch (entry->ring_id) {
1683                 case 0:
1684                         amdgpu_fence_process(&adev->sdma.instance[2].ring);
1685                         break;
1686                 case 1:
1687                         /* XXX compute */
1688                         break;
1689                 case 2:
1690                         /* XXX compute */
1691                         break;
1692                 case 3:
1693                         /* XXX page queue*/
1694                         break;
1695                 }
1696                 break;
1697         case SOC15_IH_CLIENTID_SDMA3_Sienna_Cichlid:
1698                 switch (entry->ring_id) {
1699                 case 0:
1700                         amdgpu_fence_process(&adev->sdma.instance[3].ring);
1701                         break;
1702                 case 1:
1703                         /* XXX compute */
1704                         break;
1705                 case 2:
1706                         /* XXX compute */
1707                         break;
1708                 case 3:
1709                         /* XXX page queue*/
1710                         break;
1711                 }
1712                 break;
1713         }
1714         return 0;
1715 }
1716
1717 static int sdma_v5_2_process_illegal_inst_irq(struct amdgpu_device *adev,
1718                                               struct amdgpu_irq_src *source,
1719                                               struct amdgpu_iv_entry *entry)
1720 {
1721         return 0;
1722 }
1723
1724 static bool sdma_v5_2_firmware_mgcg_support(struct amdgpu_device *adev,
1725                                                      int i)
1726 {
1727         switch (amdgpu_ip_version(adev, SDMA0_HWIP, 0)) {
1728         case IP_VERSION(5, 2, 1):
1729                 if (adev->sdma.instance[i].fw_version < 70)
1730                         return false;
1731                 break;
1732         case IP_VERSION(5, 2, 3):
1733                 if (adev->sdma.instance[i].fw_version < 47)
1734                         return false;
1735                 break;
1736         case IP_VERSION(5, 2, 7):
1737                 if (adev->sdma.instance[i].fw_version < 9)
1738                         return false;
1739                 break;
1740         default:
1741                 return true;
1742         }
1743
1744         return true;
1745
1746 }
1747
1748 static void sdma_v5_2_update_medium_grain_clock_gating(struct amdgpu_device *adev,
1749                                                        bool enable)
1750 {
1751         uint32_t data, def;
1752         int i;
1753
1754         for (i = 0; i < adev->sdma.num_instances; i++) {
1755
1756                 if (!sdma_v5_2_firmware_mgcg_support(adev, i))
1757                         adev->cg_flags &= ~AMD_CG_SUPPORT_SDMA_MGCG;
1758
1759                 if (enable && (adev->cg_flags & AMD_CG_SUPPORT_SDMA_MGCG)) {
1760                         /* Enable sdma clock gating */
1761                         def = data = RREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_CLK_CTRL));
1762                         data &= ~(SDMA0_CLK_CTRL__SOFT_OVERRIDE4_MASK |
1763                                   SDMA0_CLK_CTRL__SOFT_OVERRIDE3_MASK |
1764                                   SDMA0_CLK_CTRL__SOFT_OVERRIDE2_MASK |
1765                                   SDMA0_CLK_CTRL__SOFT_OVERRIDE1_MASK |
1766                                   SDMA0_CLK_CTRL__SOFT_OVERRIDE0_MASK |
1767                                   SDMA0_CLK_CTRL__SOFT_OVERRIDER_REG_MASK);
1768                         if (def != data)
1769                                 WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_CLK_CTRL), data);
1770                 } else {
1771                         /* Disable sdma clock gating */
1772                         def = data = RREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_CLK_CTRL));
1773                         data |= (SDMA0_CLK_CTRL__SOFT_OVERRIDE4_MASK |
1774                                  SDMA0_CLK_CTRL__SOFT_OVERRIDE3_MASK |
1775                                  SDMA0_CLK_CTRL__SOFT_OVERRIDE2_MASK |
1776                                  SDMA0_CLK_CTRL__SOFT_OVERRIDE1_MASK |
1777                                  SDMA0_CLK_CTRL__SOFT_OVERRIDE0_MASK |
1778                                  SDMA0_CLK_CTRL__SOFT_OVERRIDER_REG_MASK);
1779                         if (def != data)
1780                                 WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_CLK_CTRL), data);
1781                 }
1782         }
1783 }
1784
1785 static void sdma_v5_2_update_medium_grain_light_sleep(struct amdgpu_device *adev,
1786                                                       bool enable)
1787 {
1788         uint32_t data, def;
1789         int i;
1790
1791         for (i = 0; i < adev->sdma.num_instances; i++) {
1792                 if (adev->sdma.instance[i].fw_version < 70 &&
1793                     amdgpu_ip_version(adev, SDMA0_HWIP, 0) ==
1794                             IP_VERSION(5, 2, 1))
1795                         adev->cg_flags &= ~AMD_CG_SUPPORT_SDMA_LS;
1796
1797                 if (enable && (adev->cg_flags & AMD_CG_SUPPORT_SDMA_LS)) {
1798                         /* Enable sdma mem light sleep */
1799                         def = data = RREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_POWER_CNTL));
1800                         data |= SDMA0_POWER_CNTL__MEM_POWER_OVERRIDE_MASK;
1801                         if (def != data)
1802                                 WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_POWER_CNTL), data);
1803
1804                 } else {
1805                         /* Disable sdma mem light sleep */
1806                         def = data = RREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_POWER_CNTL));
1807                         data &= ~SDMA0_POWER_CNTL__MEM_POWER_OVERRIDE_MASK;
1808                         if (def != data)
1809                                 WREG32(sdma_v5_2_get_reg_offset(adev, i, mmSDMA0_POWER_CNTL), data);
1810
1811                 }
1812         }
1813 }
1814
1815 static int sdma_v5_2_set_clockgating_state(struct amdgpu_ip_block *ip_block,
1816                                            enum amd_clockgating_state state)
1817 {
1818         struct amdgpu_device *adev = ip_block->adev;
1819
1820         if (amdgpu_sriov_vf(adev))
1821                 return 0;
1822
1823         switch (amdgpu_ip_version(adev, SDMA0_HWIP, 0)) {
1824         case IP_VERSION(5, 2, 0):
1825         case IP_VERSION(5, 2, 2):
1826         case IP_VERSION(5, 2, 1):
1827         case IP_VERSION(5, 2, 4):
1828         case IP_VERSION(5, 2, 5):
1829         case IP_VERSION(5, 2, 6):
1830         case IP_VERSION(5, 2, 3):
1831         case IP_VERSION(5, 2, 7):
1832                 sdma_v5_2_update_medium_grain_clock_gating(adev,
1833                                 state == AMD_CG_STATE_GATE);
1834                 sdma_v5_2_update_medium_grain_light_sleep(adev,
1835                                 state == AMD_CG_STATE_GATE);
1836                 break;
1837         default:
1838                 break;
1839         }
1840
1841         return 0;
1842 }
1843
1844 static int sdma_v5_2_set_powergating_state(struct amdgpu_ip_block *ip_block,
1845                                           enum amd_powergating_state state)
1846 {
1847         return 0;
1848 }
1849
1850 static void sdma_v5_2_get_clockgating_state(void *handle, u64 *flags)
1851 {
1852         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1853         int data;
1854
1855         if (amdgpu_sriov_vf(adev))
1856                 *flags = 0;
1857
1858         /* AMD_CG_SUPPORT_SDMA_MGCG */
1859         data = RREG32(sdma_v5_2_get_reg_offset(adev, 0, mmSDMA0_CLK_CTRL));
1860         if (!(data & SDMA0_CLK_CTRL__CGCG_EN_OVERRIDE_MASK))
1861                 *flags |= AMD_CG_SUPPORT_SDMA_MGCG;
1862
1863         /* AMD_CG_SUPPORT_SDMA_LS */
1864         data = RREG32_KIQ(sdma_v5_2_get_reg_offset(adev, 0, mmSDMA0_POWER_CNTL));
1865         if (data & SDMA0_POWER_CNTL__MEM_POWER_OVERRIDE_MASK)
1866                 *flags |= AMD_CG_SUPPORT_SDMA_LS;
1867 }
1868
1869 static void sdma_v5_2_ring_begin_use(struct amdgpu_ring *ring)
1870 {
1871         struct amdgpu_device *adev = ring->adev;
1872
1873         /* SDMA 5.2.3 (RMB) FW doesn't seem to properly
1874          * disallow GFXOFF in some cases leading to
1875          * hangs in SDMA.  Disallow GFXOFF while SDMA is active.
1876          * We can probably just limit this to 5.2.3,
1877          * but it shouldn't hurt for other parts since
1878          * this GFXOFF will be disallowed anyway when SDMA is
1879          * active, this just makes it explicit.
1880          * sdma_v5_2_ring_set_wptr() takes advantage of this
1881          * to update the wptr because sometimes SDMA seems to miss
1882          * doorbells when entering PG.  If you remove this, update
1883          * sdma_v5_2_ring_set_wptr() as well!
1884          */
1885         amdgpu_gfx_off_ctrl(adev, false);
1886 }
1887
1888 static void sdma_v5_2_ring_end_use(struct amdgpu_ring *ring)
1889 {
1890         struct amdgpu_device *adev = ring->adev;
1891
1892         /* SDMA 5.2.3 (RMB) FW doesn't seem to properly
1893          * disallow GFXOFF in some cases leading to
1894          * hangs in SDMA.  Allow GFXOFF when SDMA is complete.
1895          */
1896         amdgpu_gfx_off_ctrl(adev, true);
1897 }
1898
1899 static void sdma_v5_2_print_ip_state(struct amdgpu_ip_block *ip_block, struct drm_printer *p)
1900 {
1901         struct amdgpu_device *adev = ip_block->adev;
1902         int i, j;
1903         uint32_t reg_count = ARRAY_SIZE(sdma_reg_list_5_2);
1904         uint32_t instance_offset;
1905
1906         if (!adev->sdma.ip_dump)
1907                 return;
1908
1909         drm_printf(p, "num_instances:%d\n", adev->sdma.num_instances);
1910         for (i = 0; i < adev->sdma.num_instances; i++) {
1911                 instance_offset = i * reg_count;
1912                 drm_printf(p, "\nInstance:%d\n", i);
1913
1914                 for (j = 0; j < reg_count; j++)
1915                         drm_printf(p, "%-50s \t 0x%08x\n", sdma_reg_list_5_2[j].reg_name,
1916                                    adev->sdma.ip_dump[instance_offset + j]);
1917         }
1918 }
1919
1920 static void sdma_v5_2_dump_ip_state(struct amdgpu_ip_block *ip_block)
1921 {
1922         struct amdgpu_device *adev = ip_block->adev;
1923         int i, j;
1924         uint32_t instance_offset;
1925         uint32_t reg_count = ARRAY_SIZE(sdma_reg_list_5_2);
1926
1927         if (!adev->sdma.ip_dump)
1928                 return;
1929
1930         amdgpu_gfx_off_ctrl(adev, false);
1931         for (i = 0; i < adev->sdma.num_instances; i++) {
1932                 instance_offset = i * reg_count;
1933                 for (j = 0; j < reg_count; j++)
1934                         adev->sdma.ip_dump[instance_offset + j] =
1935                                 RREG32(sdma_v5_2_get_reg_offset(adev, i,
1936                                        sdma_reg_list_5_2[j].reg_offset));
1937         }
1938         amdgpu_gfx_off_ctrl(adev, true);
1939 }
1940
1941 static const struct amd_ip_funcs sdma_v5_2_ip_funcs = {
1942         .name = "sdma_v5_2",
1943         .early_init = sdma_v5_2_early_init,
1944         .sw_init = sdma_v5_2_sw_init,
1945         .sw_fini = sdma_v5_2_sw_fini,
1946         .hw_init = sdma_v5_2_hw_init,
1947         .hw_fini = sdma_v5_2_hw_fini,
1948         .suspend = sdma_v5_2_suspend,
1949         .resume = sdma_v5_2_resume,
1950         .is_idle = sdma_v5_2_is_idle,
1951         .wait_for_idle = sdma_v5_2_wait_for_idle,
1952         .soft_reset = sdma_v5_2_soft_reset,
1953         .set_clockgating_state = sdma_v5_2_set_clockgating_state,
1954         .set_powergating_state = sdma_v5_2_set_powergating_state,
1955         .get_clockgating_state = sdma_v5_2_get_clockgating_state,
1956         .dump_ip_state = sdma_v5_2_dump_ip_state,
1957         .print_ip_state = sdma_v5_2_print_ip_state,
1958 };
1959
1960 static const struct amdgpu_ring_funcs sdma_v5_2_ring_funcs = {
1961         .type = AMDGPU_RING_TYPE_SDMA,
1962         .align_mask = 0xf,
1963         .nop = SDMA_PKT_NOP_HEADER_OP(SDMA_OP_NOP),
1964         .support_64bit_ptrs = true,
1965         .secure_submission_supported = true,
1966         .get_rptr = sdma_v5_2_ring_get_rptr,
1967         .get_wptr = sdma_v5_2_ring_get_wptr,
1968         .set_wptr = sdma_v5_2_ring_set_wptr,
1969         .emit_frame_size =
1970                 5 + /* sdma_v5_2_ring_init_cond_exec */
1971                 6 + /* sdma_v5_2_ring_emit_hdp_flush */
1972                 3 + /* hdp_invalidate */
1973                 6 + /* sdma_v5_2_ring_emit_pipeline_sync */
1974                 /* sdma_v5_2_ring_emit_vm_flush */
1975                 SOC15_FLUSH_GPU_TLB_NUM_WREG * 3 +
1976                 SOC15_FLUSH_GPU_TLB_NUM_REG_WAIT * 6 +
1977                 10 + 10 + 10, /* sdma_v5_2_ring_emit_fence x3 for user fence, vm fence */
1978         .emit_ib_size = 7 + 6, /* sdma_v5_2_ring_emit_ib */
1979         .emit_ib = sdma_v5_2_ring_emit_ib,
1980         .emit_mem_sync = sdma_v5_2_ring_emit_mem_sync,
1981         .emit_fence = sdma_v5_2_ring_emit_fence,
1982         .emit_pipeline_sync = sdma_v5_2_ring_emit_pipeline_sync,
1983         .emit_vm_flush = sdma_v5_2_ring_emit_vm_flush,
1984         .emit_hdp_flush = sdma_v5_2_ring_emit_hdp_flush,
1985         .test_ring = sdma_v5_2_ring_test_ring,
1986         .test_ib = sdma_v5_2_ring_test_ib,
1987         .insert_nop = sdma_v5_2_ring_insert_nop,
1988         .pad_ib = sdma_v5_2_ring_pad_ib,
1989         .begin_use = sdma_v5_2_ring_begin_use,
1990         .end_use = sdma_v5_2_ring_end_use,
1991         .emit_wreg = sdma_v5_2_ring_emit_wreg,
1992         .emit_reg_wait = sdma_v5_2_ring_emit_reg_wait,
1993         .emit_reg_write_reg_wait = sdma_v5_2_ring_emit_reg_write_reg_wait,
1994         .init_cond_exec = sdma_v5_2_ring_init_cond_exec,
1995         .preempt_ib = sdma_v5_2_ring_preempt_ib,
1996         .reset = sdma_v5_2_reset_queue,
1997 };
1998
1999 static void sdma_v5_2_set_ring_funcs(struct amdgpu_device *adev)
2000 {
2001         int i;
2002
2003         for (i = 0; i < adev->sdma.num_instances; i++) {
2004                 adev->sdma.instance[i].ring.funcs = &sdma_v5_2_ring_funcs;
2005                 adev->sdma.instance[i].ring.me = i;
2006         }
2007 }
2008
2009 static const struct amdgpu_irq_src_funcs sdma_v5_2_trap_irq_funcs = {
2010         .set = sdma_v5_2_set_trap_irq_state,
2011         .process = sdma_v5_2_process_trap_irq,
2012 };
2013
2014 static const struct amdgpu_irq_src_funcs sdma_v5_2_illegal_inst_irq_funcs = {
2015         .process = sdma_v5_2_process_illegal_inst_irq,
2016 };
2017
2018 static void sdma_v5_2_set_irq_funcs(struct amdgpu_device *adev)
2019 {
2020         adev->sdma.trap_irq.num_types = AMDGPU_SDMA_IRQ_INSTANCE0 +
2021                                         adev->sdma.num_instances;
2022         adev->sdma.trap_irq.funcs = &sdma_v5_2_trap_irq_funcs;
2023         adev->sdma.illegal_inst_irq.funcs = &sdma_v5_2_illegal_inst_irq_funcs;
2024 }
2025
2026 /**
2027  * sdma_v5_2_emit_copy_buffer - copy buffer using the sDMA engine
2028  *
2029  * @ib: indirect buffer to copy to
2030  * @src_offset: src GPU address
2031  * @dst_offset: dst GPU address
2032  * @byte_count: number of bytes to xfer
2033  * @copy_flags: copy flags for the buffers
2034  *
2035  * Copy GPU buffers using the DMA engine.
2036  * Used by the amdgpu ttm implementation to move pages if
2037  * registered as the asic copy callback.
2038  */
2039 static void sdma_v5_2_emit_copy_buffer(struct amdgpu_ib *ib,
2040                                        uint64_t src_offset,
2041                                        uint64_t dst_offset,
2042                                        uint32_t byte_count,
2043                                        uint32_t copy_flags)
2044 {
2045         ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_COPY) |
2046                 SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_COPY_LINEAR) |
2047                 SDMA_PKT_COPY_LINEAR_HEADER_TMZ((copy_flags & AMDGPU_COPY_FLAGS_TMZ) ? 1 : 0);
2048         ib->ptr[ib->length_dw++] = byte_count - 1;
2049         ib->ptr[ib->length_dw++] = 0; /* src/dst endian swap */
2050         ib->ptr[ib->length_dw++] = lower_32_bits(src_offset);
2051         ib->ptr[ib->length_dw++] = upper_32_bits(src_offset);
2052         ib->ptr[ib->length_dw++] = lower_32_bits(dst_offset);
2053         ib->ptr[ib->length_dw++] = upper_32_bits(dst_offset);
2054 }
2055
2056 /**
2057  * sdma_v5_2_emit_fill_buffer - fill buffer using the sDMA engine
2058  *
2059  * @ib: indirect buffer to fill
2060  * @src_data: value to write to buffer
2061  * @dst_offset: dst GPU address
2062  * @byte_count: number of bytes to xfer
2063  *
2064  * Fill GPU buffers using the DMA engine.
2065  */
2066 static void sdma_v5_2_emit_fill_buffer(struct amdgpu_ib *ib,
2067                                        uint32_t src_data,
2068                                        uint64_t dst_offset,
2069                                        uint32_t byte_count)
2070 {
2071         ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_CONST_FILL);
2072         ib->ptr[ib->length_dw++] = lower_32_bits(dst_offset);
2073         ib->ptr[ib->length_dw++] = upper_32_bits(dst_offset);
2074         ib->ptr[ib->length_dw++] = src_data;
2075         ib->ptr[ib->length_dw++] = byte_count - 1;
2076 }
2077
2078 static const struct amdgpu_buffer_funcs sdma_v5_2_buffer_funcs = {
2079         .copy_max_bytes = 0x400000,
2080         .copy_num_dw = 7,
2081         .emit_copy_buffer = sdma_v5_2_emit_copy_buffer,
2082
2083         .fill_max_bytes = 0x400000,
2084         .fill_num_dw = 5,
2085         .emit_fill_buffer = sdma_v5_2_emit_fill_buffer,
2086 };
2087
2088 static void sdma_v5_2_set_buffer_funcs(struct amdgpu_device *adev)
2089 {
2090         if (adev->mman.buffer_funcs == NULL) {
2091                 adev->mman.buffer_funcs = &sdma_v5_2_buffer_funcs;
2092                 adev->mman.buffer_funcs_ring = &adev->sdma.instance[0].ring;
2093         }
2094 }
2095
2096 static const struct amdgpu_vm_pte_funcs sdma_v5_2_vm_pte_funcs = {
2097         .copy_pte_num_dw = 7,
2098         .copy_pte = sdma_v5_2_vm_copy_pte,
2099         .write_pte = sdma_v5_2_vm_write_pte,
2100         .set_pte_pde = sdma_v5_2_vm_set_pte_pde,
2101 };
2102
2103 static void sdma_v5_2_set_vm_pte_funcs(struct amdgpu_device *adev)
2104 {
2105         unsigned i;
2106
2107         if (adev->vm_manager.vm_pte_funcs == NULL) {
2108                 adev->vm_manager.vm_pte_funcs = &sdma_v5_2_vm_pte_funcs;
2109                 for (i = 0; i < adev->sdma.num_instances; i++) {
2110                         adev->vm_manager.vm_pte_scheds[i] =
2111                                 &adev->sdma.instance[i].ring.sched;
2112                 }
2113                 adev->vm_manager.vm_pte_num_scheds = adev->sdma.num_instances;
2114         }
2115 }
2116
2117 const struct amdgpu_ip_block_version sdma_v5_2_ip_block = {
2118         .type = AMD_IP_BLOCK_TYPE_SDMA,
2119         .major = 5,
2120         .minor = 2,
2121         .rev = 0,
2122         .funcs = &sdma_v5_2_ip_funcs,
2123 };