drivers/gpu/drm/amd/amdgpu/sdma_v5_0.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_1_0_offset.h"
  34 #include "gc/gc_10_1_0_sh_mask.h"
  35 #include "hdp/hdp_5_0_0_offset.h"
  36 #include "ivsrcid/sdma0/irqsrcs_sdma0_5_0.h"
  37 #include "ivsrcid/sdma1/irqsrcs_sdma1_5_0.h"
  38
  39 #include "soc15_common.h"
  40 #include "soc15.h"
  41 #include "navi10_sdma_pkt_open.h"
  42 #include "nbio_v2_3.h"
  43 #include "sdma_v5_0.h"
  44
  45 MODULE_FIRMWARE("amdgpu/navi10_sdma.bin");
  46 MODULE_FIRMWARE("amdgpu/navi10_sdma1.bin");
  47
  48 MODULE_FIRMWARE("amdgpu/navi14_sdma.bin");
  49 MODULE_FIRMWARE("amdgpu/navi14_sdma1.bin");
  50
  51 MODULE_FIRMWARE("amdgpu/navi12_sdma.bin");
  52 MODULE_FIRMWARE("amdgpu/navi12_sdma1.bin");
  53
  54 #define SDMA1_REG_OFFSET 0x600
  55 #define SDMA0_HYP_DEC_REG_START 0x5880
  56 #define SDMA0_HYP_DEC_REG_END 0x5893
  57 #define SDMA1_HYP_DEC_REG_OFFSET 0x20
  58
  59 static void sdma_v5_0_set_ring_funcs(struct amdgpu_device *adev);
  60 static void sdma_v5_0_set_buffer_funcs(struct amdgpu_device *adev);
  61 static void sdma_v5_0_set_vm_pte_funcs(struct amdgpu_device *adev);
  62 static void sdma_v5_0_set_irq_funcs(struct amdgpu_device *adev);
  63
  64 static const struct soc15_reg_golden golden_settings_sdma_5[] = {
  65         SOC15_REG_GOLDEN_VALUE(GC, 0, mmSDMA0_CHICKEN_BITS, 0xffbf1f0f, 0x03ab0107),
  66         SOC15_REG_GOLDEN_VALUE(GC, 0, mmSDMA0_GFX_RB_WPTR_POLL_CNTL, 0xfffffff7, 0x00403000),
  67         SOC15_REG_GOLDEN_VALUE(GC, 0, mmSDMA0_PAGE_RB_WPTR_POLL_CNTL, 0xfffffff7, 0x00403000),
  68         SOC15_REG_GOLDEN_VALUE(GC, 0, mmSDMA0_RLC0_RB_WPTR_POLL_CNTL, 0xfffffff7, 0x00403000),
  69         SOC15_REG_GOLDEN_VALUE(GC, 0, mmSDMA0_RLC1_RB_WPTR_POLL_CNTL, 0xfffffff7, 0x00403000),
  70         SOC15_REG_GOLDEN_VALUE(GC, 0, mmSDMA0_RLC2_RB_WPTR_POLL_CNTL, 0xfffffff7, 0x00403000),
  71         SOC15_REG_GOLDEN_VALUE(GC, 0, mmSDMA0_RLC3_RB_WPTR_POLL_CNTL, 0xfffffff7, 0x00403000),
  72         SOC15_REG_GOLDEN_VALUE(GC, 0, mmSDMA0_RLC4_RB_WPTR_POLL_CNTL, 0xfffffff7, 0x00403000),
  73         SOC15_REG_GOLDEN_VALUE(GC, 0, mmSDMA0_RLC5_RB_WPTR_POLL_CNTL, 0xfffffff7, 0x00403000),
  74         SOC15_REG_GOLDEN_VALUE(GC, 0, mmSDMA0_RLC6_RB_WPTR_POLL_CNTL, 0xfffffff7, 0x00403000),
  75         SOC15_REG_GOLDEN_VALUE(GC, 0, mmSDMA0_RLC7_RB_WPTR_POLL_CNTL, 0xfffffff7, 0x00403000),
  76         SOC15_REG_GOLDEN_VALUE(GC, 0, mmSDMA0_UTCL1_PAGE, 0x00ffffff, 0x000c5c00),
  77         SOC15_REG_GOLDEN_VALUE(GC, 0, mmSDMA1_CHICKEN_BITS, 0xffbf1f0f, 0x03ab0107),
  78         SOC15_REG_GOLDEN_VALUE(GC, 0, mmSDMA1_GFX_RB_WPTR_POLL_CNTL, 0xfffffff7, 0x00403000),
  79         SOC15_REG_GOLDEN_VALUE(GC, 0, mmSDMA1_PAGE_RB_WPTR_POLL_CNTL, 0xfffffff7, 0x00403000),
  80         SOC15_REG_GOLDEN_VALUE(GC, 0, mmSDMA1_RLC0_RB_WPTR_POLL_CNTL, 0xfffffff7, 0x00403000),
  81         SOC15_REG_GOLDEN_VALUE(GC, 0, mmSDMA1_RLC1_RB_WPTR_POLL_CNTL, 0xfffffff7, 0x00403000),
  82         SOC15_REG_GOLDEN_VALUE(GC, 0, mmSDMA1_RLC2_RB_WPTR_POLL_CNTL, 0xfffffff7, 0x00403000),
  83         SOC15_REG_GOLDEN_VALUE(GC, 0, mmSDMA1_RLC3_RB_WPTR_POLL_CNTL, 0xfffffff7, 0x00403000),
  84         SOC15_REG_GOLDEN_VALUE(GC, 0, mmSDMA1_RLC4_RB_WPTR_POLL_CNTL, 0xfffffff7, 0x00403000),
  85         SOC15_REG_GOLDEN_VALUE(GC, 0, mmSDMA1_RLC5_RB_WPTR_POLL_CNTL, 0xfffffff7, 0x00403000),
  86         SOC15_REG_GOLDEN_VALUE(GC, 0, mmSDMA1_RLC6_RB_WPTR_POLL_CNTL, 0xfffffff7, 0x00403000),
  87         SOC15_REG_GOLDEN_VALUE(GC, 0, mmSDMA1_RLC7_RB_WPTR_POLL_CNTL, 0xfffffff7, 0x00403000),
  88         SOC15_REG_GOLDEN_VALUE(GC, 0, mmSDMA1_UTCL1_PAGE, 0x00ffffff, 0x000c5c00)
  89 };
  90
  91 static const struct soc15_reg_golden golden_settings_sdma_nv10[] = {
  92         SOC15_REG_GOLDEN_VALUE(GC, 0, mmSDMA0_RLC3_RB_WPTR_POLL_CNTL, 0x0000fff0, 0x00403000),
  93         SOC15_REG_GOLDEN_VALUE(GC, 0, mmSDMA1_RLC3_RB_WPTR_POLL_CNTL, 0x0000fff0, 0x00403000),
  94 };
  95
  96 static const struct soc15_reg_golden golden_settings_sdma_nv14[] = {
  97         SOC15_REG_GOLDEN_VALUE(GC, 0, mmSDMA0_RLC3_RB_WPTR_POLL_CNTL, 0xfffffff7, 0x00403000),
  98         SOC15_REG_GOLDEN_VALUE(GC, 0, mmSDMA1_RLC3_RB_WPTR_POLL_CNTL, 0xfffffff7, 0x00403000),
  99 };
 100
 101 static const struct soc15_reg_golden golden_settings_sdma_nv12[] = {
 102         SOC15_REG_GOLDEN_VALUE(GC, 0, mmSDMA0_RLC3_RB_WPTR_POLL_CNTL, 0xfffffff7, 0x00403000),
 103         SOC15_REG_GOLDEN_VALUE(GC, 0, mmSDMA1_RLC3_RB_WPTR_POLL_CNTL, 0xfffffff7, 0x00403000),
 104 };
 105
 106 static u32 sdma_v5_0_get_reg_offset(struct amdgpu_device *adev, u32 instance, u32 internal_offset)
 107 {
 108         u32 base;
 109
 110         if (internal_offset >= SDMA0_HYP_DEC_REG_START &&
 111             internal_offset <= SDMA0_HYP_DEC_REG_END) {
 112                 base = adev->reg_offset[GC_HWIP][0][1];
 113                 if (instance == 1)
 114                         internal_offset += SDMA1_HYP_DEC_REG_OFFSET;
 115         } else {
 116                 base = adev->reg_offset[GC_HWIP][0][0];
 117                 if (instance == 1)
 118                         internal_offset += SDMA1_REG_OFFSET;
 119         }
 120
 121         return base + internal_offset;
 122 }
 123
 124 static void sdma_v5_0_init_golden_registers(struct amdgpu_device *adev)
 125 {
 126         switch (adev->asic_type) {
 127         case CHIP_NAVI10:
 128                 soc15_program_register_sequence(adev,
 129                                                 golden_settings_sdma_5,
 130                                                 (const u32)ARRAY_SIZE(golden_settings_sdma_5));
 131                 soc15_program_register_sequence(adev,
 132                                                 golden_settings_sdma_nv10,
 133                                                 (const u32)ARRAY_SIZE(golden_settings_sdma_nv10));
 134                 break;
 135         case CHIP_NAVI14:
 136                 soc15_program_register_sequence(adev,
 137                                                 golden_settings_sdma_5,
 138                                                 (const u32)ARRAY_SIZE(golden_settings_sdma_5));
 139                 soc15_program_register_sequence(adev,
 140                                                 golden_settings_sdma_nv14,
 141                                                 (const u32)ARRAY_SIZE(golden_settings_sdma_nv14));
 142                 break;
 143         case CHIP_NAVI12:
 144                 soc15_program_register_sequence(adev,
 145                                                 golden_settings_sdma_5,
 146                                                 (const u32)ARRAY_SIZE(golden_settings_sdma_5));
 147                 soc15_program_register_sequence(adev,
 148                                                 golden_settings_sdma_nv12,
 149                                                 (const u32)ARRAY_SIZE(golden_settings_sdma_nv12));
 150                 break;
 151         default:
 152                 break;
 153         }
 154 }
 155
 156 /**
 157  * sdma_v5_0_init_microcode - load ucode images from disk
 158  *
 159  * @adev: amdgpu_device pointer
 160  *
 161  * Use the firmware interface to load the ucode images into
 162  * the driver (not loaded into hw).
 163  * Returns 0 on success, error on failure.
 164  */
 165
 166 // emulation only, won't work on real chip
 167 // navi10 real chip need to use PSP to load firmware
 168 static int sdma_v5_0_init_microcode(struct amdgpu_device *adev)
 169 {
 170         const char *chip_name;
 171         char fw_name[30];
 172         int err = 0, i;
 173         struct amdgpu_firmware_info *info = NULL;
 174         const struct common_firmware_header *header = NULL;
 175         const struct sdma_firmware_header_v1_0 *hdr;
 176
 177         DRM_DEBUG("\n");
 178
 179         switch (adev->asic_type) {
 180         case CHIP_NAVI10:
 181                 chip_name = "navi10";
 182                 break;
 183         case CHIP_NAVI14:
 184                 chip_name = "navi14";
 185                 break;
 186         case CHIP_NAVI12:
 187                 chip_name = "navi12";
 188                 break;
 189         default:
 190                 BUG();
 191         }
 192
 193         for (i = 0; i < adev->sdma.num_instances; i++) {
 194                 if (i == 0)
 195                         snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_sdma.bin", chip_name);
 196                 else
 197                         snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_sdma1.bin", chip_name);
 198                 err = request_firmware(&adev->sdma.instance[i].fw, fw_name, adev->dev);
 199                 if (err)
 200                         goto out;
 201                 err = amdgpu_ucode_validate(adev->sdma.instance[i].fw);
 202                 if (err)
 203                         goto out;
 204                 hdr = (const struct sdma_firmware_header_v1_0 *)adev->sdma.instance[i].fw->data;
 205                 adev->sdma.instance[i].fw_version = le32_to_cpu(hdr->header.ucode_version);
 206                 adev->sdma.instance[i].feature_version = le32_to_cpu(hdr->ucode_feature_version);
 207                 if (adev->sdma.instance[i].feature_version >= 20)
 208                         adev->sdma.instance[i].burst_nop = true;
 209                 DRM_DEBUG("psp_load == '%s'\n",
 210                                 adev->firmware.load_type == AMDGPU_FW_LOAD_PSP ? "true" : "false");
 211
 212                 if (adev->firmware.load_type == AMDGPU_FW_LOAD_PSP) {
 213                         info = &adev->firmware.ucode[AMDGPU_UCODE_ID_SDMA0 + i];
 214                         info->ucode_id = AMDGPU_UCODE_ID_SDMA0 + i;
 215                         info->fw = adev->sdma.instance[i].fw;
 216                         header = (const struct common_firmware_header *)info->fw->data;
 217                         adev->firmware.fw_size +=
 218                                 ALIGN(le32_to_cpu(header->ucode_size_bytes), PAGE_SIZE);
 219                 }
 220         }
 221 out:
 222         if (err) {
 223                 DRM_ERROR("sdma_v5_0: Failed to load firmware \"%s\"\n", fw_name);
 224                 for (i = 0; i < adev->sdma.num_instances; i++) {
 225                         release_firmware(adev->sdma.instance[i].fw);
 226                         adev->sdma.instance[i].fw = NULL;
 227                 }
 228         }
 229         return err;
 230 }
 231
 232 static unsigned sdma_v5_0_ring_init_cond_exec(struct amdgpu_ring *ring)
 233 {
 234         unsigned ret;
 235
 236         amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_COND_EXE));
 237         amdgpu_ring_write(ring, lower_32_bits(ring->cond_exe_gpu_addr));
 238         amdgpu_ring_write(ring, upper_32_bits(ring->cond_exe_gpu_addr));
 239         amdgpu_ring_write(ring, 1);
 240         ret = ring->wptr & ring->buf_mask;/* this is the offset we need patch later */
 241         amdgpu_ring_write(ring, 0x55aa55aa);/* insert dummy here and patch it later */
 242
 243         return ret;
 244 }
 245
 246 static void sdma_v5_0_ring_patch_cond_exec(struct amdgpu_ring *ring,
 247                                            unsigned offset)
 248 {
 249         unsigned cur;
 250
 251         BUG_ON(offset > ring->buf_mask);
 252         BUG_ON(ring->ring[offset] != 0x55aa55aa);
 253
 254         cur = (ring->wptr - 1) & ring->buf_mask;
 255         if (cur > offset)
 256                 ring->ring[offset] = cur - offset;
 257         else
 258                 ring->ring[offset] = (ring->buf_mask + 1) - offset + cur;
 259 }
 260
 261 /**
 262  * sdma_v5_0_ring_get_rptr - get the current read pointer
 263  *
 264  * @ring: amdgpu ring pointer
 265  *
 266  * Get the current rptr from the hardware (NAVI10+).
 267  */
 268 static uint64_t sdma_v5_0_ring_get_rptr(struct amdgpu_ring *ring)
 269 {
 270         u64 *rptr;
 271
 272         /* XXX check if swapping is necessary on BE */
 273         rptr = ((u64 *)&ring->adev->wb.wb[ring->rptr_offs]);
 274
 275         DRM_DEBUG("rptr before shift == 0x%016llx\n", *rptr);
 276         return ((*rptr) >> 2);
 277 }
 278
 279 /**
 280  * sdma_v5_0_ring_get_wptr - get the current write pointer
 281  *
 282  * @ring: amdgpu ring pointer
 283  *
 284  * Get the current wptr from the hardware (NAVI10+).
 285  */
 286 static uint64_t sdma_v5_0_ring_get_wptr(struct amdgpu_ring *ring)
 287 {
 288         struct amdgpu_device *adev = ring->adev;
 289         u64 *wptr = NULL;
 290         uint64_t local_wptr = 0;
 291
 292         if (ring->use_doorbell) {
 293                 /* XXX check if swapping is necessary on BE */
 294                 wptr = ((u64 *)&adev->wb.wb[ring->wptr_offs]);
 295                 DRM_DEBUG("wptr/doorbell before shift == 0x%016llx\n", *wptr);
 296                 *wptr = (*wptr) >> 2;
 297                 DRM_DEBUG("wptr/doorbell after shift == 0x%016llx\n", *wptr);
 298         } else {
 299                 u32 lowbit, highbit;
 300
 301                 wptr = &local_wptr;
 302                 lowbit = RREG32(sdma_v5_0_get_reg_offset(adev, ring->me, mmSDMA0_GFX_RB_WPTR)) >> 2;
 303                 highbit = RREG32(sdma_v5_0_get_reg_offset(adev, ring->me, mmSDMA0_GFX_RB_WPTR_HI)) >> 2;
 304
 305                 DRM_DEBUG("wptr [%i]high== 0x%08x low==0x%08x\n",
 306                                 ring->me, highbit, lowbit);
 307                 *wptr = highbit;
 308                 *wptr = (*wptr) << 32;
 309                 *wptr |= lowbit;
 310         }
 311
 312         return *wptr;
 313 }
 314
 315 /**
 316  * sdma_v5_0_ring_set_wptr - commit the write pointer
 317  *
 318  * @ring: amdgpu ring pointer
 319  *
 320  * Write the wptr back to the hardware (NAVI10+).
 321  */
 322 static void sdma_v5_0_ring_set_wptr(struct amdgpu_ring *ring)
 323 {
 324         struct amdgpu_device *adev = ring->adev;
 325
 326         DRM_DEBUG("Setting write pointer\n");
 327         if (ring->use_doorbell) {
 328                 DRM_DEBUG("Using doorbell -- "
 329                                 "wptr_offs == 0x%08x "
 330                                 "lower_32_bits(ring->wptr) << 2 == 0x%08x "
 331                                 "upper_32_bits(ring->wptr) << 2 == 0x%08x\n",
 332                                 ring->wptr_offs,
 333                                 lower_32_bits(ring->wptr << 2),
 334                                 upper_32_bits(ring->wptr << 2));
 335                 /* XXX check if swapping is necessary on BE */
 336                 adev->wb.wb[ring->wptr_offs] = lower_32_bits(ring->wptr << 2);
 337                 adev->wb.wb[ring->wptr_offs + 1] = upper_32_bits(ring->wptr << 2);
 338                 DRM_DEBUG("calling WDOORBELL64(0x%08x, 0x%016llx)\n",
 339                                 ring->doorbell_index, ring->wptr << 2);
 340                 WDOORBELL64(ring->doorbell_index, ring->wptr << 2);
 341         } else {
 342                 DRM_DEBUG("Not using doorbell -- "
 343                                 "mmSDMA%i_GFX_RB_WPTR == 0x%08x "
 344                                 "mmSDMA%i_GFX_RB_WPTR_HI == 0x%08x\n",
 345                                 ring->me,
 346                                 lower_32_bits(ring->wptr << 2),
 347                                 ring->me,
 348                                 upper_32_bits(ring->wptr << 2));
 349                 WREG32(sdma_v5_0_get_reg_offset(adev, ring->me, mmSDMA0_GFX_RB_WPTR),
 350                         lower_32_bits(ring->wptr << 2));
 351                 WREG32(sdma_v5_0_get_reg_offset(adev, ring->me, mmSDMA0_GFX_RB_WPTR_HI),
 352                         upper_32_bits(ring->wptr << 2));
 353         }
 354 }
 355
 356 static void sdma_v5_0_ring_insert_nop(struct amdgpu_ring *ring, uint32_t count)
 357 {
 358         struct amdgpu_sdma_instance *sdma = amdgpu_sdma_get_instance_from_ring(ring);
 359         int i;
 360
 361         for (i = 0; i < count; i++)
 362                 if (sdma && sdma->burst_nop && (i == 0))
 363                         amdgpu_ring_write(ring, ring->funcs->nop |
 364                                 SDMA_PKT_NOP_HEADER_COUNT(count - 1));
 365                 else
 366                         amdgpu_ring_write(ring, ring->funcs->nop);
 367 }
 368
 369 /**
 370  * sdma_v5_0_ring_emit_ib - Schedule an IB on the DMA engine
 371  *
 372  * @ring: amdgpu ring pointer
 373  * @ib: IB object to schedule
 374  *
 375  * Schedule an IB in the DMA ring (NAVI10).
 376  */
 377 static void sdma_v5_0_ring_emit_ib(struct amdgpu_ring *ring,
 378                                    struct amdgpu_job *job,
 379                                    struct amdgpu_ib *ib,
 380                                    uint32_t flags)
 381 {
 382         unsigned vmid = AMDGPU_JOB_GET_VMID(job);
 383         uint64_t csa_mc_addr = amdgpu_sdma_get_csa_mc_addr(ring, vmid);
 384
 385         /* IB packet must end on a 8 DW boundary */
 386         sdma_v5_0_ring_insert_nop(ring, (10 - (lower_32_bits(ring->wptr) & 7)) % 8);
 387
 388         amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_INDIRECT) |
 389                           SDMA_PKT_INDIRECT_HEADER_VMID(vmid & 0xf));
 390         /* base must be 32 byte aligned */
 391         amdgpu_ring_write(ring, lower_32_bits(ib->gpu_addr) & 0xffffffe0);
 392         amdgpu_ring_write(ring, upper_32_bits(ib->gpu_addr));
 393         amdgpu_ring_write(ring, ib->length_dw);
 394         amdgpu_ring_write(ring, lower_32_bits(csa_mc_addr));
 395         amdgpu_ring_write(ring, upper_32_bits(csa_mc_addr));
 396 }
 397
 398 /**
 399  * sdma_v5_0_ring_emit_hdp_flush - emit an hdp flush on the DMA ring
 400  *
 401  * @ring: amdgpu ring pointer
 402  *
 403  * Emit an hdp flush packet on the requested DMA ring.
 404  */
 405 static void sdma_v5_0_ring_emit_hdp_flush(struct amdgpu_ring *ring)
 406 {
 407         struct amdgpu_device *adev = ring->adev;
 408         u32 ref_and_mask = 0;
 409         const struct nbio_hdp_flush_reg *nbio_hf_reg = adev->nbio.hdp_flush_reg;
 410
 411         if (ring->me == 0)
 412                 ref_and_mask = nbio_hf_reg->ref_and_mask_sdma0;
 413         else
 414                 ref_and_mask = nbio_hf_reg->ref_and_mask_sdma1;
 415
 416         amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_POLL_REGMEM) |
 417                           SDMA_PKT_POLL_REGMEM_HEADER_HDP_FLUSH(1) |
 418                           SDMA_PKT_POLL_REGMEM_HEADER_FUNC(3)); /* == */
 419         amdgpu_ring_write(ring, (adev->nbio.funcs->get_hdp_flush_done_offset(adev)) << 2);
 420         amdgpu_ring_write(ring, (adev->nbio.funcs->get_hdp_flush_req_offset(adev)) << 2);
 421         amdgpu_ring_write(ring, ref_and_mask); /* reference */
 422         amdgpu_ring_write(ring, ref_and_mask); /* mask */
 423         amdgpu_ring_write(ring, SDMA_PKT_POLL_REGMEM_DW5_RETRY_COUNT(0xfff) |
 424                           SDMA_PKT_POLL_REGMEM_DW5_INTERVAL(10)); /* retry count, poll interval */
 425 }
 426
 427 /**
 428  * sdma_v5_0_ring_emit_fence - emit a fence on the DMA ring
 429  *
 430  * @ring: amdgpu ring pointer
 431  * @fence: amdgpu fence object
 432  *
 433  * Add a DMA fence packet to the ring to write
 434  * the fence seq number and DMA trap packet to generate
 435  * an interrupt if needed (NAVI10).
 436  */
 437 static void sdma_v5_0_ring_emit_fence(struct amdgpu_ring *ring, u64 addr, u64 seq,
 438                                       unsigned flags)
 439 {
 440         struct amdgpu_device *adev = ring->adev;
 441         bool write64bit = flags & AMDGPU_FENCE_FLAG_64BIT;
 442         /* write the fence */
 443         amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_FENCE) |
 444                           SDMA_PKT_FENCE_HEADER_MTYPE(0x3)); /* Ucached(UC) */
 445         /* zero in first two bits */
 446         BUG_ON(addr & 0x3);
 447         amdgpu_ring_write(ring, lower_32_bits(addr));
 448         amdgpu_ring_write(ring, upper_32_bits(addr));
 449         amdgpu_ring_write(ring, lower_32_bits(seq));
 450
 451         /* optionally write high bits as well */
 452         if (write64bit) {
 453                 addr += 4;
 454                 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_FENCE) |
 455                                   SDMA_PKT_FENCE_HEADER_MTYPE(0x3));
 456                 /* zero in first two bits */
 457                 BUG_ON(addr & 0x3);
 458                 amdgpu_ring_write(ring, lower_32_bits(addr));
 459                 amdgpu_ring_write(ring, upper_32_bits(addr));
 460                 amdgpu_ring_write(ring, upper_32_bits(seq));
 461         }
 462
 463         /* Interrupt not work fine on GFX10.1 model yet. Use fallback instead */
 464         if ((flags & AMDGPU_FENCE_FLAG_INT) && adev->pdev->device != 0x50) {
 465                 /* generate an interrupt */
 466                 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_TRAP));
 467                 amdgpu_ring_write(ring, SDMA_PKT_TRAP_INT_CONTEXT_INT_CONTEXT(0));
 468         }
 469 }
 470
 471
 472 /**
 473  * sdma_v5_0_gfx_stop - stop the gfx async dma engines
 474  *
 475  * @adev: amdgpu_device pointer
 476  *
 477  * Stop the gfx async dma ring buffers (NAVI10).
 478  */
 479 static void sdma_v5_0_gfx_stop(struct amdgpu_device *adev)
 480 {
 481         struct amdgpu_ring *sdma0 = &adev->sdma.instance[0].ring;
 482         struct amdgpu_ring *sdma1 = &adev->sdma.instance[1].ring;
 483         u32 rb_cntl, ib_cntl;
 484         int i;
 485
 486         if ((adev->mman.buffer_funcs_ring == sdma0) ||
 487             (adev->mman.buffer_funcs_ring == sdma1))
 488                 amdgpu_ttm_set_buffer_funcs_status(adev, false);
 489
 490         for (i = 0; i < adev->sdma.num_instances; i++) {
 491                 rb_cntl = RREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_CNTL));
 492                 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RB_ENABLE, 0);
 493                 WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_CNTL), rb_cntl);
 494                 ib_cntl = RREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_IB_CNTL));
 495                 ib_cntl = REG_SET_FIELD(ib_cntl, SDMA0_GFX_IB_CNTL, IB_ENABLE, 0);
 496                 WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_IB_CNTL), ib_cntl);
 497         }
 498
 499         sdma0->sched.ready = false;
 500         sdma1->sched.ready = false;
 501 }
 502
 503 /**
 504  * sdma_v5_0_rlc_stop - stop the compute async dma engines
 505  *
 506  * @adev: amdgpu_device pointer
 507  *
 508  * Stop the compute async dma queues (NAVI10).
 509  */
 510 static void sdma_v5_0_rlc_stop(struct amdgpu_device *adev)
 511 {
 512         /* XXX todo */
 513 }
 514
 515 /**
 516  * sdma_v_0_ctx_switch_enable - stop the async dma engines context switch
 517  *
 518  * @adev: amdgpu_device pointer
 519  * @enable: enable/disable the DMA MEs context switch.
 520  *
 521  * Halt or unhalt the async dma engines context switch (NAVI10).
 522  */
 523 static void sdma_v5_0_ctx_switch_enable(struct amdgpu_device *adev, bool enable)
 524 {
 525         u32 f32_cntl, phase_quantum = 0;
 526         int i;
 527
 528         if (amdgpu_sdma_phase_quantum) {
 529                 unsigned value = amdgpu_sdma_phase_quantum;
 530                 unsigned unit = 0;
 531
 532                 while (value > (SDMA0_PHASE0_QUANTUM__VALUE_MASK >>
 533                                 SDMA0_PHASE0_QUANTUM__VALUE__SHIFT)) {
 534                         value = (value + 1) >> 1;
 535                         unit++;
 536                 }
 537                 if (unit > (SDMA0_PHASE0_QUANTUM__UNIT_MASK >>
 538                             SDMA0_PHASE0_QUANTUM__UNIT__SHIFT)) {
 539                         value = (SDMA0_PHASE0_QUANTUM__VALUE_MASK >>
 540                                  SDMA0_PHASE0_QUANTUM__VALUE__SHIFT);
 541                         unit = (SDMA0_PHASE0_QUANTUM__UNIT_MASK >>
 542                                 SDMA0_PHASE0_QUANTUM__UNIT__SHIFT);
 543                         WARN_ONCE(1,
 544                         "clamping sdma_phase_quantum to %uK clock cycles\n",
 545                                   value << unit);
 546                 }
 547                 phase_quantum =
 548                         value << SDMA0_PHASE0_QUANTUM__VALUE__SHIFT |
 549                         unit  << SDMA0_PHASE0_QUANTUM__UNIT__SHIFT;
 550         }
 551
 552         for (i = 0; i < adev->sdma.num_instances; i++) {
 553                 f32_cntl = RREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_CNTL));
 554                 f32_cntl = REG_SET_FIELD(f32_cntl, SDMA0_CNTL,
 555                                 AUTO_CTXSW_ENABLE, enable ? 1 : 0);
 556                 if (enable && amdgpu_sdma_phase_quantum) {
 557                         WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_PHASE0_QUANTUM),
 558                                phase_quantum);
 559                         WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_PHASE1_QUANTUM),
 560                                phase_quantum);
 561                         WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_PHASE2_QUANTUM),
 562                                phase_quantum);
 563                 }
 564                 WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_CNTL), f32_cntl);
 565         }
 566
 567 }
 568
 569 /**
 570  * sdma_v5_0_enable - stop the async dma engines
 571  *
 572  * @adev: amdgpu_device pointer
 573  * @enable: enable/disable the DMA MEs.
 574  *
 575  * Halt or unhalt the async dma engines (NAVI10).
 576  */
 577 static void sdma_v5_0_enable(struct amdgpu_device *adev, bool enable)
 578 {
 579         u32 f32_cntl;
 580         int i;
 581
 582         if (enable == false) {
 583                 sdma_v5_0_gfx_stop(adev);
 584                 sdma_v5_0_rlc_stop(adev);
 585         }
 586
 587         for (i = 0; i < adev->sdma.num_instances; i++) {
 588                 f32_cntl = RREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_F32_CNTL));
 589                 f32_cntl = REG_SET_FIELD(f32_cntl, SDMA0_F32_CNTL, HALT, enable ? 0 : 1);
 590                 WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_F32_CNTL), f32_cntl);
 591         }
 592 }
 593
 594 /**
 595  * sdma_v5_0_gfx_resume - setup and start the async dma engines
 596  *
 597  * @adev: amdgpu_device pointer
 598  *
 599  * Set up the gfx DMA ring buffers and enable them (NAVI10).
 600  * Returns 0 for success, error for failure.
 601  */
 602 static int sdma_v5_0_gfx_resume(struct amdgpu_device *adev)
 603 {
 604         struct amdgpu_ring *ring;
 605         u32 rb_cntl, ib_cntl;
 606         u32 rb_bufsz;
 607         u32 wb_offset;
 608         u32 doorbell;
 609         u32 doorbell_offset;
 610         u32 temp;
 611         u32 wptr_poll_cntl;
 612         u64 wptr_gpu_addr;
 613         int i, r;
 614
 615         for (i = 0; i < adev->sdma.num_instances; i++) {
 616                 ring = &adev->sdma.instance[i].ring;
 617                 wb_offset = (ring->rptr_offs * 4);
 618
 619                 WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_SEM_WAIT_FAIL_TIMER_CNTL), 0);
 620
 621                 /* Set ring buffer size in dwords */
 622                 rb_bufsz = order_base_2(ring->ring_size / 4);
 623                 rb_cntl = RREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_CNTL));
 624                 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RB_SIZE, rb_bufsz);
 625 #ifdef __BIG_ENDIAN
 626                 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RB_SWAP_ENABLE, 1);
 627                 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL,
 628                                         RPTR_WRITEBACK_SWAP_ENABLE, 1);
 629 #endif
 630                 WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_CNTL), rb_cntl);
 631
 632                 /* Initialize the ring buffer's read and write pointers */
 633                 WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_RPTR), 0);
 634                 WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_RPTR_HI), 0);
 635                 WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_WPTR), 0);
 636                 WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_WPTR_HI), 0);
 637
 638                 /* setup the wptr shadow polling */
 639                 wptr_gpu_addr = adev->wb.gpu_addr + (ring->wptr_offs * 4);
 640                 WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_WPTR_POLL_ADDR_LO),
 641                        lower_32_bits(wptr_gpu_addr));
 642                 WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_WPTR_POLL_ADDR_HI),
 643                        upper_32_bits(wptr_gpu_addr));
 644                 wptr_poll_cntl = RREG32(sdma_v5_0_get_reg_offset(adev, i,
 645                                                          mmSDMA0_GFX_RB_WPTR_POLL_CNTL));
 646                 wptr_poll_cntl = REG_SET_FIELD(wptr_poll_cntl,
 647                                                SDMA0_GFX_RB_WPTR_POLL_CNTL,
 648                                                F32_POLL_ENABLE, 1);
 649                 WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_WPTR_POLL_CNTL),
 650                        wptr_poll_cntl);
 651
 652                 /* set the wb address whether it's enabled or not */
 653                 WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_RPTR_ADDR_HI),
 654                        upper_32_bits(adev->wb.gpu_addr + wb_offset) & 0xFFFFFFFF);
 655                 WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_RPTR_ADDR_LO),
 656                        lower_32_bits(adev->wb.gpu_addr + wb_offset) & 0xFFFFFFFC);
 657
 658                 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RPTR_WRITEBACK_ENABLE, 1);
 659
 660                 WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_BASE), ring->gpu_addr >> 8);
 661                 WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_BASE_HI), ring->gpu_addr >> 40);
 662
 663                 ring->wptr = 0;
 664
 665                 /* before programing wptr to a less value, need set minor_ptr_update first */
 666                 WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_MINOR_PTR_UPDATE), 1);
 667
 668                 if (!amdgpu_sriov_vf(adev)) { /* only bare-metal use register write for wptr */
 669                         WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_WPTR), lower_32_bits(ring->wptr) << 2);
 670                         WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_WPTR_HI), upper_32_bits(ring->wptr) << 2);
 671                 }
 672
 673                 doorbell = RREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_DOORBELL));
 674                 doorbell_offset = RREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_DOORBELL_OFFSET));
 675
 676                 if (ring->use_doorbell) {
 677                         doorbell = REG_SET_FIELD(doorbell, SDMA0_GFX_DOORBELL, ENABLE, 1);
 678                         doorbell_offset = REG_SET_FIELD(doorbell_offset, SDMA0_GFX_DOORBELL_OFFSET,
 679                                         OFFSET, ring->doorbell_index);
 680                 } else {
 681                         doorbell = REG_SET_FIELD(doorbell, SDMA0_GFX_DOORBELL, ENABLE, 0);
 682                 }
 683                 WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_DOORBELL), doorbell);
 684                 WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_DOORBELL_OFFSET), doorbell_offset);
 685
 686                 adev->nbio.funcs->sdma_doorbell_range(adev, i, ring->use_doorbell,
 687                                                       ring->doorbell_index, 20);
 688
 689                 if (amdgpu_sriov_vf(adev))
 690                         sdma_v5_0_ring_set_wptr(ring);
 691
 692                 /* set minor_ptr_update to 0 after wptr programed */
 693                 WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_MINOR_PTR_UPDATE), 0);
 694
 695                 /* set utc l1 enable flag always to 1 */
 696                 temp = RREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_CNTL));
 697                 temp = REG_SET_FIELD(temp, SDMA0_CNTL, UTC_L1_ENABLE, 1);
 698
 699                 /* enable MCBP */
 700                 temp = REG_SET_FIELD(temp, SDMA0_CNTL, MIDCMD_PREEMPT_ENABLE, 1);
 701                 WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_CNTL), temp);
 702
 703                 /* Set up RESP_MODE to non-copy addresses */
 704                 temp = RREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_UTCL1_CNTL));
 705                 temp = REG_SET_FIELD(temp, SDMA0_UTCL1_CNTL, RESP_MODE, 3);
 706                 temp = REG_SET_FIELD(temp, SDMA0_UTCL1_CNTL, REDO_DELAY, 9);
 707                 WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_UTCL1_CNTL), temp);
 708
 709                 /* program default cache read and write policy */
 710                 temp = RREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_UTCL1_PAGE));
 711                 /* clean read policy and write policy bits */
 712                 temp &= 0xFF0FFF;
 713                 temp |= ((CACHE_READ_POLICY_L2__DEFAULT << 12) | (CACHE_WRITE_POLICY_L2__DEFAULT << 14));
 714                 WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_UTCL1_PAGE), temp);
 715
 716                 if (!amdgpu_sriov_vf(adev)) {
 717                         /* unhalt engine */
 718                         temp = RREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_F32_CNTL));
 719                         temp = REG_SET_FIELD(temp, SDMA0_F32_CNTL, HALT, 0);
 720                         WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_F32_CNTL), temp);
 721                 }
 722
 723                 /* enable DMA RB */
 724                 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RB_ENABLE, 1);
 725                 WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_CNTL), rb_cntl);
 726
 727                 ib_cntl = RREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_IB_CNTL));
 728                 ib_cntl = REG_SET_FIELD(ib_cntl, SDMA0_GFX_IB_CNTL, IB_ENABLE, 1);
 729 #ifdef __BIG_ENDIAN
 730                 ib_cntl = REG_SET_FIELD(ib_cntl, SDMA0_GFX_IB_CNTL, IB_SWAP_ENABLE, 1);
 731 #endif
 732                 /* enable DMA IBs */
 733                 WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_IB_CNTL), ib_cntl);
 734
 735                 ring->sched.ready = true;
 736
 737                 if (amdgpu_sriov_vf(adev)) { /* bare-metal sequence doesn't need below to lines */
 738                         sdma_v5_0_ctx_switch_enable(adev, true);
 739                         sdma_v5_0_enable(adev, true);
 740                 }
 741
 742                 r = amdgpu_ring_test_ring(ring);
 743                 if (r) {
 744                         ring->sched.ready = false;
 745                         return r;
 746                 }
 747
 748                 if (adev->mman.buffer_funcs_ring == ring)
 749                         amdgpu_ttm_set_buffer_funcs_status(adev, true);
 750         }
 751
 752         return 0;
 753 }
 754
 755 /**
 756  * sdma_v5_0_rlc_resume - setup and start the async dma engines
 757  *
 758  * @adev: amdgpu_device pointer
 759  *
 760  * Set up the compute DMA queues and enable them (NAVI10).
 761  * Returns 0 for success, error for failure.
 762  */
 763 static int sdma_v5_0_rlc_resume(struct amdgpu_device *adev)
 764 {
 765         return 0;
 766 }
 767
 768 /**
 769  * sdma_v5_0_load_microcode - load the sDMA ME ucode
 770  *
 771  * @adev: amdgpu_device pointer
 772  *
 773  * Loads the sDMA0/1 ucode.
 774  * Returns 0 for success, -EINVAL if the ucode is not available.
 775  */
 776 static int sdma_v5_0_load_microcode(struct amdgpu_device *adev)
 777 {
 778         const struct sdma_firmware_header_v1_0 *hdr;
 779         const __le32 *fw_data;
 780         u32 fw_size;
 781         int i, j;
 782
 783         /* halt the MEs */
 784         sdma_v5_0_enable(adev, false);
 785
 786         for (i = 0; i < adev->sdma.num_instances; i++) {
 787                 if (!adev->sdma.instance[i].fw)
 788                         return -EINVAL;
 789
 790                 hdr = (const struct sdma_firmware_header_v1_0 *)adev->sdma.instance[i].fw->data;
 791                 amdgpu_ucode_print_sdma_hdr(&hdr->header);
 792                 fw_size = le32_to_cpu(hdr->header.ucode_size_bytes) / 4;
 793
 794                 fw_data = (const __le32 *)
 795                         (adev->sdma.instance[i].fw->data +
 796                                 le32_to_cpu(hdr->header.ucode_array_offset_bytes));
 797
 798                 WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_UCODE_ADDR), 0);
 799
 800                 for (j = 0; j < fw_size; j++) {
 801                         if (amdgpu_emu_mode == 1 && j % 500 == 0)
 802                                 msleep(1);
 803                         WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_UCODE_DATA), le32_to_cpup(fw_data++));
 804                 }
 805
 806                 WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_UCODE_ADDR), adev->sdma.instance[i].fw_version);
 807         }
 808
 809         return 0;
 810 }
 811
 812 /**
 813  * sdma_v5_0_start - setup and start the async dma engines
 814  *
 815  * @adev: amdgpu_device pointer
 816  *
 817  * Set up the DMA engines and enable them (NAVI10).
 818  * Returns 0 for success, error for failure.
 819  */
 820 static int sdma_v5_0_start(struct amdgpu_device *adev)
 821 {
 822         int r = 0;
 823
 824         if (amdgpu_sriov_vf(adev)) {
 825                 sdma_v5_0_ctx_switch_enable(adev, false);
 826                 sdma_v5_0_enable(adev, false);
 827
 828                 /* set RB registers */
 829                 r = sdma_v5_0_gfx_resume(adev);
 830                 return r;
 831         }
 832
 833         if (adev->firmware.load_type == AMDGPU_FW_LOAD_DIRECT) {
 834                 r = sdma_v5_0_load_microcode(adev);
 835                 if (r)
 836                         return r;
 837
 838                 /* The value of mmSDMA_F32_CNTL is invalid the moment after loading fw */
 839                 if (amdgpu_emu_mode == 1 && adev->pdev->device == 0x4d)
 840                         msleep(1000);
 841         }
 842
 843         /* unhalt the MEs */
 844         sdma_v5_0_enable(adev, true);
 845         /* enable sdma ring preemption */
 846         sdma_v5_0_ctx_switch_enable(adev, true);
 847
 848         /* start the gfx rings and rlc compute queues */
 849         r = sdma_v5_0_gfx_resume(adev);
 850         if (r)
 851                 return r;
 852         r = sdma_v5_0_rlc_resume(adev);
 853
 854         return r;
 855 }
 856
 857 /**
 858  * sdma_v5_0_ring_test_ring - simple async dma engine test
 859  *
 860  * @ring: amdgpu_ring structure holding ring information
 861  *
 862  * Test the DMA engine by writing using it to write an
 863  * value to memory. (NAVI10).
 864  * Returns 0 for success, error for failure.
 865  */
 866 static int sdma_v5_0_ring_test_ring(struct amdgpu_ring *ring)
 867 {
 868         struct amdgpu_device *adev = ring->adev;
 869         unsigned i;
 870         unsigned index;
 871         int r;
 872         u32 tmp;
 873         u64 gpu_addr;
 874
 875         r = amdgpu_device_wb_get(adev, &index);
 876         if (r) {
 877                 dev_err(adev->dev, "(%d) failed to allocate wb slot\n", r);
 878                 return r;
 879         }
 880
 881         gpu_addr = adev->wb.gpu_addr + (index * 4);
 882         tmp = 0xCAFEDEAD;
 883         adev->wb.wb[index] = cpu_to_le32(tmp);
 884
 885         r = amdgpu_ring_alloc(ring, 5);
 886         if (r) {
 887                 DRM_ERROR("amdgpu: dma failed to lock ring %d (%d).\n", ring->idx, r);
 888                 amdgpu_device_wb_free(adev, index);
 889                 return r;
 890         }
 891
 892         amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_WRITE) |
 893                           SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_WRITE_LINEAR));
 894         amdgpu_ring_write(ring, lower_32_bits(gpu_addr));
 895         amdgpu_ring_write(ring, upper_32_bits(gpu_addr));
 896         amdgpu_ring_write(ring, SDMA_PKT_WRITE_UNTILED_DW_3_COUNT(0));
 897         amdgpu_ring_write(ring, 0xDEADBEEF);
 898         amdgpu_ring_commit(ring);
 899
 900         for (i = 0; i < adev->usec_timeout; i++) {
 901                 tmp = le32_to_cpu(adev->wb.wb[index]);
 902                 if (tmp == 0xDEADBEEF)
 903                         break;
 904                 if (amdgpu_emu_mode == 1)
 905                         msleep(1);
 906                 else
 907                         udelay(1);
 908         }
 909
 910         if (i < adev->usec_timeout) {
 911                 if (amdgpu_emu_mode == 1)
 912                         DRM_INFO("ring test on %d succeeded in %d msecs\n", ring->idx, i);
 913                 else
 914                         DRM_INFO("ring test on %d succeeded in %d usecs\n", ring->idx, i);
 915         } else {
 916                 DRM_ERROR("amdgpu: ring %d test failed (0x%08X)\n",
 917                           ring->idx, tmp);
 918                 r = -EINVAL;
 919         }
 920         amdgpu_device_wb_free(adev, index);
 921
 922         return r;
 923 }
 924
 925 /**
 926  * sdma_v5_0_ring_test_ib - test an IB on the DMA engine
 927  *
 928  * @ring: amdgpu_ring structure holding ring information
 929  *
 930  * Test a simple IB in the DMA ring (NAVI10).
 931  * Returns 0 on success, error on failure.
 932  */
 933 static int sdma_v5_0_ring_test_ib(struct amdgpu_ring *ring, long timeout)
 934 {
 935         struct amdgpu_device *adev = ring->adev;
 936         struct amdgpu_ib ib;
 937         struct dma_fence *f = NULL;
 938         unsigned index;
 939         long r;
 940         u32 tmp = 0;
 941         u64 gpu_addr;
 942
 943         r = amdgpu_device_wb_get(adev, &index);
 944         if (r) {
 945                 dev_err(adev->dev, "(%ld) failed to allocate wb slot\n", r);
 946                 return r;
 947         }
 948
 949         gpu_addr = adev->wb.gpu_addr + (index * 4);
 950         tmp = 0xCAFEDEAD;
 951         adev->wb.wb[index] = cpu_to_le32(tmp);
 952         memset(&ib, 0, sizeof(ib));
 953         r = amdgpu_ib_get(adev, NULL, 256, &ib);
 954         if (r) {
 955                 DRM_ERROR("amdgpu: failed to get ib (%ld).\n", r);
 956                 goto err0;
 957         }
 958
 959         ib.ptr[0] = SDMA_PKT_HEADER_OP(SDMA_OP_WRITE) |
 960                 SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_WRITE_LINEAR);
 961         ib.ptr[1] = lower_32_bits(gpu_addr);
 962         ib.ptr[2] = upper_32_bits(gpu_addr);
 963         ib.ptr[3] = SDMA_PKT_WRITE_UNTILED_DW_3_COUNT(0);
 964         ib.ptr[4] = 0xDEADBEEF;
 965         ib.ptr[5] = SDMA_PKT_NOP_HEADER_OP(SDMA_OP_NOP);
 966         ib.ptr[6] = SDMA_PKT_NOP_HEADER_OP(SDMA_OP_NOP);
 967         ib.ptr[7] = SDMA_PKT_NOP_HEADER_OP(SDMA_OP_NOP);
 968         ib.length_dw = 8;
 969
 970         r = amdgpu_ib_schedule(ring, 1, &ib, NULL, &f);
 971         if (r)
 972                 goto err1;
 973
 974         r = dma_fence_wait_timeout(f, false, timeout);
 975         if (r == 0) {
 976                 DRM_ERROR("amdgpu: IB test timed out\n");
 977                 r = -ETIMEDOUT;
 978                 goto err1;
 979         } else if (r < 0) {
 980                 DRM_ERROR("amdgpu: fence wait failed (%ld).\n", r);
 981                 goto err1;
 982         }
 983         tmp = le32_to_cpu(adev->wb.wb[index]);
 984         if (tmp == 0xDEADBEEF) {
 985                 DRM_INFO("ib test on ring %d succeeded\n", ring->idx);
 986                 r = 0;
 987         } else {
 988                 DRM_ERROR("amdgpu: ib test failed (0x%08X)\n", tmp);
 989                 r = -EINVAL;
 990         }
 991
 992 err1:
 993         amdgpu_ib_free(adev, &ib, NULL);
 994         dma_fence_put(f);
 995 err0:
 996         amdgpu_device_wb_free(adev, index);
 997         return r;
 998 }
 999
1000
1001 /**
1002  * sdma_v5_0_vm_copy_pte - update PTEs by copying them from the GART
1003  *
1004  * @ib: indirect buffer to fill with commands
1005  * @pe: addr of the page entry
1006  * @src: src addr to copy from
1007  * @count: number of page entries to update
1008  *
1009  * Update PTEs by copying them from the GART using sDMA (NAVI10).
1010  */
1011 static void sdma_v5_0_vm_copy_pte(struct amdgpu_ib *ib,
1012                                   uint64_t pe, uint64_t src,
1013                                   unsigned count)
1014 {
1015         unsigned bytes = count * 8;
1016
1017         ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_COPY) |
1018                 SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_COPY_LINEAR);
1019         ib->ptr[ib->length_dw++] = bytes - 1;
1020         ib->ptr[ib->length_dw++] = 0; /* src/dst endian swap */
1021         ib->ptr[ib->length_dw++] = lower_32_bits(src);
1022         ib->ptr[ib->length_dw++] = upper_32_bits(src);
1023         ib->ptr[ib->length_dw++] = lower_32_bits(pe);
1024         ib->ptr[ib->length_dw++] = upper_32_bits(pe);
1025
1026 }
1027
1028 /**
1029  * sdma_v5_0_vm_write_pte - update PTEs by writing them manually
1030  *
1031  * @ib: indirect buffer to fill with commands
1032  * @pe: addr of the page entry
1033  * @addr: dst addr to write into pe
1034  * @count: number of page entries to update
1035  * @incr: increase next addr by incr bytes
1036  * @flags: access flags
1037  *
1038  * Update PTEs by writing them manually using sDMA (NAVI10).
1039  */
1040 static void sdma_v5_0_vm_write_pte(struct amdgpu_ib *ib, uint64_t pe,
1041                                    uint64_t value, unsigned count,
1042                                    uint32_t incr)
1043 {
1044         unsigned ndw = count * 2;
1045
1046         ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_WRITE) |
1047                 SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_WRITE_LINEAR);
1048         ib->ptr[ib->length_dw++] = lower_32_bits(pe);
1049         ib->ptr[ib->length_dw++] = upper_32_bits(pe);
1050         ib->ptr[ib->length_dw++] = ndw - 1;
1051         for (; ndw > 0; ndw -= 2) {
1052                 ib->ptr[ib->length_dw++] = lower_32_bits(value);
1053                 ib->ptr[ib->length_dw++] = upper_32_bits(value);
1054                 value += incr;
1055         }
1056 }
1057
1058 /**
1059  * sdma_v5_0_vm_set_pte_pde - update the page tables using sDMA
1060  *
1061  * @ib: indirect buffer to fill with commands
1062  * @pe: addr of the page entry
1063  * @addr: dst addr to write into pe
1064  * @count: number of page entries to update
1065  * @incr: increase next addr by incr bytes
1066  * @flags: access flags
1067  *
1068  * Update the page tables using sDMA (NAVI10).
1069  */
1070 static void sdma_v5_0_vm_set_pte_pde(struct amdgpu_ib *ib,
1071                                      uint64_t pe,
1072                                      uint64_t addr, unsigned count,
1073                                      uint32_t incr, uint64_t flags)
1074 {
1075         /* for physically contiguous pages (vram) */
1076         ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_PTEPDE);
1077         ib->ptr[ib->length_dw++] = lower_32_bits(pe); /* dst addr */
1078         ib->ptr[ib->length_dw++] = upper_32_bits(pe);
1079         ib->ptr[ib->length_dw++] = lower_32_bits(flags); /* mask */
1080         ib->ptr[ib->length_dw++] = upper_32_bits(flags);
1081         ib->ptr[ib->length_dw++] = lower_32_bits(addr); /* value */
1082         ib->ptr[ib->length_dw++] = upper_32_bits(addr);
1083         ib->ptr[ib->length_dw++] = incr; /* increment size */
1084         ib->ptr[ib->length_dw++] = 0;
1085         ib->ptr[ib->length_dw++] = count - 1; /* number of entries */
1086 }
1087
1088 /**
1089  * sdma_v5_0_ring_pad_ib - pad the IB to the required number of dw
1090  *
1091  * @ib: indirect buffer to fill with padding
1092  *
1093  */
1094 static void sdma_v5_0_ring_pad_ib(struct amdgpu_ring *ring, struct amdgpu_ib *ib)
1095 {
1096         struct amdgpu_sdma_instance *sdma = amdgpu_sdma_get_instance_from_ring(ring);
1097         u32 pad_count;
1098         int i;
1099
1100         pad_count = (8 - (ib->length_dw & 0x7)) % 8;
1101         for (i = 0; i < pad_count; i++)
1102                 if (sdma && sdma->burst_nop && (i == 0))
1103                         ib->ptr[ib->length_dw++] =
1104                                 SDMA_PKT_HEADER_OP(SDMA_OP_NOP) |
1105                                 SDMA_PKT_NOP_HEADER_COUNT(pad_count - 1);
1106                 else
1107                         ib->ptr[ib->length_dw++] =
1108                                 SDMA_PKT_HEADER_OP(SDMA_OP_NOP);
1109 }
1110
1111
1112 /**
1113  * sdma_v5_0_ring_emit_pipeline_sync - sync the pipeline
1114  *
1115  * @ring: amdgpu_ring pointer
1116  *
1117  * Make sure all previous operations are completed (CIK).
1118  */
1119 static void sdma_v5_0_ring_emit_pipeline_sync(struct amdgpu_ring *ring)
1120 {
1121         uint32_t seq = ring->fence_drv.sync_seq;
1122         uint64_t addr = ring->fence_drv.gpu_addr;
1123
1124         /* wait for idle */
1125         amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_POLL_REGMEM) |
1126                           SDMA_PKT_POLL_REGMEM_HEADER_HDP_FLUSH(0) |
1127                           SDMA_PKT_POLL_REGMEM_HEADER_FUNC(3) | /* equal */
1128                           SDMA_PKT_POLL_REGMEM_HEADER_MEM_POLL(1));
1129         amdgpu_ring_write(ring, addr & 0xfffffffc);
1130         amdgpu_ring_write(ring, upper_32_bits(addr) & 0xffffffff);
1131         amdgpu_ring_write(ring, seq); /* reference */
1132         amdgpu_ring_write(ring, 0xffffffff); /* mask */
1133         amdgpu_ring_write(ring, SDMA_PKT_POLL_REGMEM_DW5_RETRY_COUNT(0xfff) |
1134                           SDMA_PKT_POLL_REGMEM_DW5_INTERVAL(4)); /* retry count, poll interval */
1135 }
1136
1137
1138 /**
1139  * sdma_v5_0_ring_emit_vm_flush - vm flush using sDMA
1140  *
1141  * @ring: amdgpu_ring pointer
1142  * @vm: amdgpu_vm pointer
1143  *
1144  * Update the page table base and flush the VM TLB
1145  * using sDMA (NAVI10).
1146  */
1147 static void sdma_v5_0_ring_emit_vm_flush(struct amdgpu_ring *ring,
1148                                          unsigned vmid, uint64_t pd_addr)
1149 {
1150         amdgpu_gmc_emit_flush_gpu_tlb(ring, vmid, pd_addr);
1151 }
1152
1153 static void sdma_v5_0_ring_emit_wreg(struct amdgpu_ring *ring,
1154                                      uint32_t reg, uint32_t val)
1155 {
1156         amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_SRBM_WRITE) |
1157                           SDMA_PKT_SRBM_WRITE_HEADER_BYTE_EN(0xf));
1158         amdgpu_ring_write(ring, reg);
1159         amdgpu_ring_write(ring, val);
1160 }
1161
1162 static void sdma_v5_0_ring_emit_reg_wait(struct amdgpu_ring *ring, uint32_t reg,
1163                                          uint32_t val, uint32_t mask)
1164 {
1165         amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_POLL_REGMEM) |
1166                           SDMA_PKT_POLL_REGMEM_HEADER_HDP_FLUSH(0) |
1167                           SDMA_PKT_POLL_REGMEM_HEADER_FUNC(3)); /* equal */
1168         amdgpu_ring_write(ring, reg << 2);
1169         amdgpu_ring_write(ring, 0);
1170         amdgpu_ring_write(ring, val); /* reference */
1171         amdgpu_ring_write(ring, mask); /* mask */
1172         amdgpu_ring_write(ring, SDMA_PKT_POLL_REGMEM_DW5_RETRY_COUNT(0xfff) |
1173                           SDMA_PKT_POLL_REGMEM_DW5_INTERVAL(10));
1174 }
1175
1176 static void sdma_v5_0_ring_emit_reg_write_reg_wait(struct amdgpu_ring *ring,
1177                                                    uint32_t reg0, uint32_t reg1,
1178                                                    uint32_t ref, uint32_t mask)
1179 {
1180         amdgpu_ring_emit_wreg(ring, reg0, ref);
1181         /* wait for a cycle to reset vm_inv_eng*_ack */
1182         amdgpu_ring_emit_reg_wait(ring, reg0, 0, 0);
1183         amdgpu_ring_emit_reg_wait(ring, reg1, mask, mask);
1184 }
1185
1186 static int sdma_v5_0_early_init(void *handle)
1187 {
1188         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1189
1190         adev->sdma.num_instances = 2;
1191
1192         sdma_v5_0_set_ring_funcs(adev);
1193         sdma_v5_0_set_buffer_funcs(adev);
1194         sdma_v5_0_set_vm_pte_funcs(adev);
1195         sdma_v5_0_set_irq_funcs(adev);
1196
1197         return 0;
1198 }
1199
1200
1201 static int sdma_v5_0_sw_init(void *handle)
1202 {
1203         struct amdgpu_ring *ring;
1204         int r, i;
1205         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1206
1207         /* SDMA trap event */
1208         r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_SDMA0,
1209                               SDMA0_5_0__SRCID__SDMA_TRAP,
1210                               &adev->sdma.trap_irq);
1211         if (r)
1212                 return r;
1213
1214         /* SDMA trap event */
1215         r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_SDMA1,
1216                               SDMA1_5_0__SRCID__SDMA_TRAP,
1217                               &adev->sdma.trap_irq);
1218         if (r)
1219                 return r;
1220
1221         r = sdma_v5_0_init_microcode(adev);
1222         if (r) {
1223                 DRM_ERROR("Failed to load sdma firmware!\n");
1224                 return r;
1225         }
1226
1227         for (i = 0; i < adev->sdma.num_instances; i++) {
1228                 ring = &adev->sdma.instance[i].ring;
1229                 ring->ring_obj = NULL;
1230                 ring->use_doorbell = true;
1231
1232                 DRM_INFO("use_doorbell being set to: [%s]\n",
1233                                 ring->use_doorbell?"true":"false");
1234
1235                 ring->doorbell_index = (i == 0) ?
1236                         (adev->doorbell_index.sdma_engine[0] << 1) //get DWORD offset
1237                         : (adev->doorbell_index.sdma_engine[1] << 1); // get DWORD offset
1238
1239                 sprintf(ring->name, "sdma%d", i);
1240                 r = amdgpu_ring_init(adev, ring, 1024,
1241                                      &adev->sdma.trap_irq,
1242                                      (i == 0) ?
1243                                      AMDGPU_SDMA_IRQ_INSTANCE0 :
1244                                      AMDGPU_SDMA_IRQ_INSTANCE1);
1245                 if (r)
1246                         return r;
1247         }
1248
1249         return r;
1250 }
1251
1252 static int sdma_v5_0_sw_fini(void *handle)
1253 {
1254         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1255         int i;
1256
1257         for (i = 0; i < adev->sdma.num_instances; i++)
1258                 amdgpu_ring_fini(&adev->sdma.instance[i].ring);
1259
1260         return 0;
1261 }
1262
1263 static int sdma_v5_0_hw_init(void *handle)
1264 {
1265         int r;
1266         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1267
1268         sdma_v5_0_init_golden_registers(adev);
1269
1270         r = sdma_v5_0_start(adev);
1271
1272         return r;
1273 }
1274
1275 static int sdma_v5_0_hw_fini(void *handle)
1276 {
1277         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1278
1279         if (amdgpu_sriov_vf(adev))
1280                 return 0;
1281
1282         sdma_v5_0_ctx_switch_enable(adev, false);
1283         sdma_v5_0_enable(adev, false);
1284
1285         return 0;
1286 }
1287
1288 static int sdma_v5_0_suspend(void *handle)
1289 {
1290         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1291
1292         return sdma_v5_0_hw_fini(adev);
1293 }
1294
1295 static int sdma_v5_0_resume(void *handle)
1296 {
1297         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1298
1299         return sdma_v5_0_hw_init(adev);
1300 }
1301
1302 static bool sdma_v5_0_is_idle(void *handle)
1303 {
1304         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1305         u32 i;
1306
1307         for (i = 0; i < adev->sdma.num_instances; i++) {
1308                 u32 tmp = RREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_STATUS_REG));
1309
1310                 if (!(tmp & SDMA0_STATUS_REG__IDLE_MASK))
1311                         return false;
1312         }
1313
1314         return true;
1315 }
1316
1317 static int sdma_v5_0_wait_for_idle(void *handle)
1318 {
1319         unsigned i;
1320         u32 sdma0, sdma1;
1321         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1322
1323         for (i = 0; i < adev->usec_timeout; i++) {
1324                 sdma0 = RREG32(sdma_v5_0_get_reg_offset(adev, 0, mmSDMA0_STATUS_REG));
1325                 sdma1 = RREG32(sdma_v5_0_get_reg_offset(adev, 1, mmSDMA0_STATUS_REG));
1326
1327                 if (sdma0 & sdma1 & SDMA0_STATUS_REG__IDLE_MASK)
1328                         return 0;
1329                 udelay(1);
1330         }
1331         return -ETIMEDOUT;
1332 }
1333
1334 static int sdma_v5_0_soft_reset(void *handle)
1335 {
1336         /* todo */
1337
1338         return 0;
1339 }
1340
1341 static int sdma_v5_0_ring_preempt_ib(struct amdgpu_ring *ring)
1342 {
1343         int i, r = 0;
1344         struct amdgpu_device *adev = ring->adev;
1345         u32 index = 0;
1346         u64 sdma_gfx_preempt;
1347
1348         amdgpu_sdma_get_index_from_ring(ring, &index);
1349         if (index == 0)
1350                 sdma_gfx_preempt = mmSDMA0_GFX_PREEMPT;
1351         else
1352                 sdma_gfx_preempt = mmSDMA1_GFX_PREEMPT;
1353
1354         /* assert preemption condition */
1355         amdgpu_ring_set_preempt_cond_exec(ring, false);
1356
1357         /* emit the trailing fence */
1358         ring->trail_seq += 1;
1359         amdgpu_ring_alloc(ring, 10);
1360         sdma_v5_0_ring_emit_fence(ring, ring->trail_fence_gpu_addr,
1361                                   ring->trail_seq, 0);
1362         amdgpu_ring_commit(ring);
1363
1364         /* assert IB preemption */
1365         WREG32(sdma_gfx_preempt, 1);
1366
1367         /* poll the trailing fence */
1368         for (i = 0; i < adev->usec_timeout; i++) {
1369                 if (ring->trail_seq ==
1370                     le32_to_cpu(*(ring->trail_fence_cpu_addr)))
1371                         break;
1372                 udelay(1);
1373         }
1374
1375         if (i >= adev->usec_timeout) {
1376                 r = -EINVAL;
1377                 DRM_ERROR("ring %d failed to be preempted\n", ring->idx);
1378         }
1379
1380         /* deassert IB preemption */
1381         WREG32(sdma_gfx_preempt, 0);
1382
1383         /* deassert the preemption condition */
1384         amdgpu_ring_set_preempt_cond_exec(ring, true);
1385         return r;
1386 }
1387
1388 static int sdma_v5_0_set_trap_irq_state(struct amdgpu_device *adev,
1389                                         struct amdgpu_irq_src *source,
1390                                         unsigned type,
1391                                         enum amdgpu_interrupt_state state)
1392 {
1393         u32 sdma_cntl;
1394
1395         u32 reg_offset = (type == AMDGPU_SDMA_IRQ_INSTANCE0) ?
1396                 sdma_v5_0_get_reg_offset(adev, 0, mmSDMA0_CNTL) :
1397                 sdma_v5_0_get_reg_offset(adev, 1, mmSDMA0_CNTL);
1398
1399         sdma_cntl = RREG32(reg_offset);
1400         sdma_cntl = REG_SET_FIELD(sdma_cntl, SDMA0_CNTL, TRAP_ENABLE,
1401                        state == AMDGPU_IRQ_STATE_ENABLE ? 1 : 0);
1402         WREG32(reg_offset, sdma_cntl);
1403
1404         return 0;
1405 }
1406
1407 static int sdma_v5_0_process_trap_irq(struct amdgpu_device *adev,
1408                                       struct amdgpu_irq_src *source,
1409                                       struct amdgpu_iv_entry *entry)
1410 {
1411         DRM_DEBUG("IH: SDMA trap\n");
1412         switch (entry->client_id) {
1413         case SOC15_IH_CLIENTID_SDMA0:
1414                 switch (entry->ring_id) {
1415                 case 0:
1416                         amdgpu_fence_process(&adev->sdma.instance[0].ring);
1417                         break;
1418                 case 1:
1419                         /* XXX compute */
1420                         break;
1421                 case 2:
1422                         /* XXX compute */
1423                         break;
1424                 case 3:
1425                         /* XXX page queue*/
1426                         break;
1427                 }
1428                 break;
1429         case SOC15_IH_CLIENTID_SDMA1:
1430                 switch (entry->ring_id) {
1431                 case 0:
1432                         amdgpu_fence_process(&adev->sdma.instance[1].ring);
1433                         break;
1434                 case 1:
1435                         /* XXX compute */
1436                         break;
1437                 case 2:
1438                         /* XXX compute */
1439                         break;
1440                 case 3:
1441                         /* XXX page queue*/
1442                         break;
1443                 }
1444                 break;
1445         }
1446         return 0;
1447 }
1448
1449 static int sdma_v5_0_process_illegal_inst_irq(struct amdgpu_device *adev,
1450                                               struct amdgpu_irq_src *source,
1451                                               struct amdgpu_iv_entry *entry)
1452 {
1453         return 0;
1454 }
1455
1456 static void sdma_v5_0_update_medium_grain_clock_gating(struct amdgpu_device *adev,
1457                                                        bool enable)
1458 {
1459         uint32_t data, def;
1460         int i;
1461
1462         for (i = 0; i < adev->sdma.num_instances; i++) {
1463                 if (enable && (adev->cg_flags & AMD_CG_SUPPORT_SDMA_MGCG)) {
1464                         /* Enable sdma clock gating */
1465                         def = data = RREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_CLK_CTRL));
1466                         data &= ~(SDMA0_CLK_CTRL__SOFT_OVERRIDE7_MASK |
1467                                   SDMA0_CLK_CTRL__SOFT_OVERRIDE6_MASK |
1468                                   SDMA0_CLK_CTRL__SOFT_OVERRIDE5_MASK |
1469                                   SDMA0_CLK_CTRL__SOFT_OVERRIDE4_MASK |
1470                                   SDMA0_CLK_CTRL__SOFT_OVERRIDE3_MASK |
1471                                   SDMA0_CLK_CTRL__SOFT_OVERRIDE2_MASK |
1472                                   SDMA0_CLK_CTRL__SOFT_OVERRIDE1_MASK |
1473                                   SDMA0_CLK_CTRL__SOFT_OVERRIDE0_MASK);
1474                         if (def != data)
1475                                 WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_CLK_CTRL), data);
1476                 } else {
1477                         /* Disable sdma clock gating */
1478                         def = data = RREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_CLK_CTRL));
1479                         data |= (SDMA0_CLK_CTRL__SOFT_OVERRIDE7_MASK |
1480                                  SDMA0_CLK_CTRL__SOFT_OVERRIDE6_MASK |
1481                                  SDMA0_CLK_CTRL__SOFT_OVERRIDE5_MASK |
1482                                  SDMA0_CLK_CTRL__SOFT_OVERRIDE4_MASK |
1483                                  SDMA0_CLK_CTRL__SOFT_OVERRIDE3_MASK |
1484                                  SDMA0_CLK_CTRL__SOFT_OVERRIDE2_MASK |
1485                                  SDMA0_CLK_CTRL__SOFT_OVERRIDE1_MASK |
1486                                  SDMA0_CLK_CTRL__SOFT_OVERRIDE0_MASK);
1487                         if (def != data)
1488                                 WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_CLK_CTRL), data);
1489                 }
1490         }
1491 }
1492
1493 static void sdma_v5_0_update_medium_grain_light_sleep(struct amdgpu_device *adev,
1494                                                       bool enable)
1495 {
1496         uint32_t data, def;
1497         int i;
1498
1499         for (i = 0; i < adev->sdma.num_instances; i++) {
1500                 if (enable && (adev->cg_flags & AMD_CG_SUPPORT_SDMA_LS)) {
1501                         /* Enable sdma mem light sleep */
1502                         def = data = RREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_POWER_CNTL));
1503                         data |= SDMA0_POWER_CNTL__MEM_POWER_OVERRIDE_MASK;
1504                         if (def != data)
1505                                 WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_POWER_CNTL), data);
1506
1507                 } else {
1508                         /* Disable sdma mem light sleep */
1509                         def = data = RREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_POWER_CNTL));
1510                         data &= ~SDMA0_POWER_CNTL__MEM_POWER_OVERRIDE_MASK;
1511                         if (def != data)
1512                                 WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_POWER_CNTL), data);
1513
1514                 }
1515         }
1516 }
1517
1518 static int sdma_v5_0_set_clockgating_state(void *handle,
1519                                            enum amd_clockgating_state state)
1520 {
1521         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1522
1523         if (amdgpu_sriov_vf(adev))
1524                 return 0;
1525
1526         switch (adev->asic_type) {
1527         case CHIP_NAVI10:
1528         case CHIP_NAVI14:
1529         case CHIP_NAVI12:
1530                 sdma_v5_0_update_medium_grain_clock_gating(adev,
1531                                 state == AMD_CG_STATE_GATE ? true : false);
1532                 sdma_v5_0_update_medium_grain_light_sleep(adev,
1533                                 state == AMD_CG_STATE_GATE ? true : false);
1534                 break;
1535         default:
1536                 break;
1537         }
1538
1539         return 0;
1540 }
1541
1542 static int sdma_v5_0_set_powergating_state(void *handle,
1543                                           enum amd_powergating_state state)
1544 {
1545         return 0;
1546 }
1547
1548 static void sdma_v5_0_get_clockgating_state(void *handle, u32 *flags)
1549 {
1550         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1551         int data;
1552
1553         if (amdgpu_sriov_vf(adev))
1554                 *flags = 0;
1555
1556         /* AMD_CG_SUPPORT_SDMA_MGCG */
1557         data = RREG32(sdma_v5_0_get_reg_offset(adev, 0, mmSDMA0_CLK_CTRL));
1558         if (!(data & SDMA0_CLK_CTRL__SOFT_OVERRIDE7_MASK))
1559                 *flags |= AMD_CG_SUPPORT_SDMA_MGCG;
1560
1561         /* AMD_CG_SUPPORT_SDMA_LS */
1562         data = RREG32(sdma_v5_0_get_reg_offset(adev, 0, mmSDMA0_POWER_CNTL));
1563         if (data & SDMA0_POWER_CNTL__MEM_POWER_OVERRIDE_MASK)
1564                 *flags |= AMD_CG_SUPPORT_SDMA_LS;
1565 }
1566
1567 const struct amd_ip_funcs sdma_v5_0_ip_funcs = {
1568         .name = "sdma_v5_0",
1569         .early_init = sdma_v5_0_early_init,
1570         .late_init = NULL,
1571         .sw_init = sdma_v5_0_sw_init,
1572         .sw_fini = sdma_v5_0_sw_fini,
1573         .hw_init = sdma_v5_0_hw_init,
1574         .hw_fini = sdma_v5_0_hw_fini,
1575         .suspend = sdma_v5_0_suspend,
1576         .resume = sdma_v5_0_resume,
1577         .is_idle = sdma_v5_0_is_idle,
1578         .wait_for_idle = sdma_v5_0_wait_for_idle,
1579         .soft_reset = sdma_v5_0_soft_reset,
1580         .set_clockgating_state = sdma_v5_0_set_clockgating_state,
1581         .set_powergating_state = sdma_v5_0_set_powergating_state,
1582         .get_clockgating_state = sdma_v5_0_get_clockgating_state,
1583 };
1584
1585 static const struct amdgpu_ring_funcs sdma_v5_0_ring_funcs = {
1586         .type = AMDGPU_RING_TYPE_SDMA,
1587         .align_mask = 0xf,
1588         .nop = SDMA_PKT_NOP_HEADER_OP(SDMA_OP_NOP),
1589         .support_64bit_ptrs = true,
1590         .vmhub = AMDGPU_GFXHUB_0,
1591         .get_rptr = sdma_v5_0_ring_get_rptr,
1592         .get_wptr = sdma_v5_0_ring_get_wptr,
1593         .set_wptr = sdma_v5_0_ring_set_wptr,
1594         .emit_frame_size =
1595                 5 + /* sdma_v5_0_ring_init_cond_exec */
1596                 6 + /* sdma_v5_0_ring_emit_hdp_flush */
1597                 3 + /* hdp_invalidate */
1598                 6 + /* sdma_v5_0_ring_emit_pipeline_sync */
1599                 /* sdma_v5_0_ring_emit_vm_flush */
1600                 SOC15_FLUSH_GPU_TLB_NUM_WREG * 3 +
1601                 SOC15_FLUSH_GPU_TLB_NUM_REG_WAIT * 6 * 2 +
1602                 10 + 10 + 10, /* sdma_v5_0_ring_emit_fence x3 for user fence, vm fence */
1603         .emit_ib_size = 7 + 6, /* sdma_v5_0_ring_emit_ib */
1604         .emit_ib = sdma_v5_0_ring_emit_ib,
1605         .emit_fence = sdma_v5_0_ring_emit_fence,
1606         .emit_pipeline_sync = sdma_v5_0_ring_emit_pipeline_sync,
1607         .emit_vm_flush = sdma_v5_0_ring_emit_vm_flush,
1608         .emit_hdp_flush = sdma_v5_0_ring_emit_hdp_flush,
1609         .test_ring = sdma_v5_0_ring_test_ring,
1610         .test_ib = sdma_v5_0_ring_test_ib,
1611         .insert_nop = sdma_v5_0_ring_insert_nop,
1612         .pad_ib = sdma_v5_0_ring_pad_ib,
1613         .emit_wreg = sdma_v5_0_ring_emit_wreg,
1614         .emit_reg_wait = sdma_v5_0_ring_emit_reg_wait,
1615         .emit_reg_write_reg_wait = sdma_v5_0_ring_emit_reg_write_reg_wait,
1616         .init_cond_exec = sdma_v5_0_ring_init_cond_exec,
1617         .patch_cond_exec = sdma_v5_0_ring_patch_cond_exec,
1618         .preempt_ib = sdma_v5_0_ring_preempt_ib,
1619 };
1620
1621 static void sdma_v5_0_set_ring_funcs(struct amdgpu_device *adev)
1622 {
1623         int i;
1624
1625         for (i = 0; i < adev->sdma.num_instances; i++) {
1626                 adev->sdma.instance[i].ring.funcs = &sdma_v5_0_ring_funcs;
1627                 adev->sdma.instance[i].ring.me = i;
1628         }
1629 }
1630
1631 static const struct amdgpu_irq_src_funcs sdma_v5_0_trap_irq_funcs = {
1632         .set = sdma_v5_0_set_trap_irq_state,
1633         .process = sdma_v5_0_process_trap_irq,
1634 };
1635
1636 static const struct amdgpu_irq_src_funcs sdma_v5_0_illegal_inst_irq_funcs = {
1637         .process = sdma_v5_0_process_illegal_inst_irq,
1638 };
1639
1640 static void sdma_v5_0_set_irq_funcs(struct amdgpu_device *adev)
1641 {
1642         adev->sdma.trap_irq.num_types = AMDGPU_SDMA_IRQ_INSTANCE0 +
1643                                         adev->sdma.num_instances;
1644         adev->sdma.trap_irq.funcs = &sdma_v5_0_trap_irq_funcs;
1645         adev->sdma.illegal_inst_irq.funcs = &sdma_v5_0_illegal_inst_irq_funcs;
1646 }
1647
1648 /**
1649  * sdma_v5_0_emit_copy_buffer - copy buffer using the sDMA engine
1650  *
1651  * @ring: amdgpu_ring structure holding ring information
1652  * @src_offset: src GPU address
1653  * @dst_offset: dst GPU address
1654  * @byte_count: number of bytes to xfer
1655  *
1656  * Copy GPU buffers using the DMA engine (NAVI10).
1657  * Used by the amdgpu ttm implementation to move pages if
1658  * registered as the asic copy callback.
1659  */
1660 static void sdma_v5_0_emit_copy_buffer(struct amdgpu_ib *ib,
1661                                        uint64_t src_offset,
1662                                        uint64_t dst_offset,
1663                                        uint32_t byte_count)
1664 {
1665         ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_COPY) |
1666                 SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_COPY_LINEAR);
1667         ib->ptr[ib->length_dw++] = byte_count - 1;
1668         ib->ptr[ib->length_dw++] = 0; /* src/dst endian swap */
1669         ib->ptr[ib->length_dw++] = lower_32_bits(src_offset);
1670         ib->ptr[ib->length_dw++] = upper_32_bits(src_offset);
1671         ib->ptr[ib->length_dw++] = lower_32_bits(dst_offset);
1672         ib->ptr[ib->length_dw++] = upper_32_bits(dst_offset);
1673 }
1674
1675 /**
1676  * sdma_v5_0_emit_fill_buffer - fill buffer using the sDMA engine
1677  *
1678  * @ring: amdgpu_ring structure holding ring information
1679  * @src_data: value to write to buffer
1680  * @dst_offset: dst GPU address
1681  * @byte_count: number of bytes to xfer
1682  *
1683  * Fill GPU buffers using the DMA engine (NAVI10).
1684  */
1685 static void sdma_v5_0_emit_fill_buffer(struct amdgpu_ib *ib,
1686                                        uint32_t src_data,
1687                                        uint64_t dst_offset,
1688                                        uint32_t byte_count)
1689 {
1690         ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_CONST_FILL);
1691         ib->ptr[ib->length_dw++] = lower_32_bits(dst_offset);
1692         ib->ptr[ib->length_dw++] = upper_32_bits(dst_offset);
1693         ib->ptr[ib->length_dw++] = src_data;
1694         ib->ptr[ib->length_dw++] = byte_count - 1;
1695 }
1696
1697 static const struct amdgpu_buffer_funcs sdma_v5_0_buffer_funcs = {
1698         .copy_max_bytes = 0x400000,
1699         .copy_num_dw = 7,
1700         .emit_copy_buffer = sdma_v5_0_emit_copy_buffer,
1701
1702         .fill_max_bytes = 0x400000,
1703         .fill_num_dw = 5,
1704         .emit_fill_buffer = sdma_v5_0_emit_fill_buffer,
1705 };
1706
1707 static void sdma_v5_0_set_buffer_funcs(struct amdgpu_device *adev)
1708 {
1709         if (adev->mman.buffer_funcs == NULL) {
1710                 adev->mman.buffer_funcs = &sdma_v5_0_buffer_funcs;
1711                 adev->mman.buffer_funcs_ring = &adev->sdma.instance[0].ring;
1712         }
1713 }
1714
1715 static const struct amdgpu_vm_pte_funcs sdma_v5_0_vm_pte_funcs = {
1716         .copy_pte_num_dw = 7,
1717         .copy_pte = sdma_v5_0_vm_copy_pte,
1718         .write_pte = sdma_v5_0_vm_write_pte,
1719         .set_pte_pde = sdma_v5_0_vm_set_pte_pde,
1720 };
1721
1722 static void sdma_v5_0_set_vm_pte_funcs(struct amdgpu_device *adev)
1723 {
1724         struct drm_gpu_scheduler *sched;
1725         unsigned i;
1726
1727         if (adev->vm_manager.vm_pte_funcs == NULL) {
1728                 adev->vm_manager.vm_pte_funcs = &sdma_v5_0_vm_pte_funcs;
1729                 for (i = 0; i < adev->sdma.num_instances; i++) {
1730                         sched = &adev->sdma.instance[i].ring.sched;
1731                         adev->vm_manager.vm_pte_rqs[i] =
1732                                 &sched->sched_rq[DRM_SCHED_PRIORITY_KERNEL];
1733                 }
1734                 adev->vm_manager.vm_pte_num_rqs = adev->sdma.num_instances;
1735         }
1736 }
1737
1738 const struct amdgpu_ip_block_version sdma_v5_0_ip_block = {
1739         .type = AMD_IP_BLOCK_TYPE_SDMA,
1740         .major = 5,
1741         .minor = 0,
1742         .rev = 0,
1743         .funcs = &sdma_v5_0_ip_funcs,
1744 };