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 "ivsrcid/sdma0/irqsrcs_sdma0_5_0.h"
  36 #include "ivsrcid/sdma1/irqsrcs_sdma1_5_0.h"
  37
  38 #include "soc15_common.h"
  39 #include "soc15.h"
  40 #include "navi10_sdma_pkt_open.h"
  41 #include "nbio_v2_3.h"
  42 #include "sdma_common.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_5_sriov[] = {
  92         SOC15_REG_GOLDEN_VALUE(GC, 0, mmSDMA0_GFX_RB_WPTR_POLL_CNTL, 0xfffffff7, 0x00403000),
  93         SOC15_REG_GOLDEN_VALUE(GC, 0, mmSDMA0_PAGE_RB_WPTR_POLL_CNTL, 0xfffffff7, 0x00403000),
  94         SOC15_REG_GOLDEN_VALUE(GC, 0, mmSDMA0_RLC0_RB_WPTR_POLL_CNTL, 0xfffffff7, 0x00403000),
  95         SOC15_REG_GOLDEN_VALUE(GC, 0, mmSDMA0_RLC1_RB_WPTR_POLL_CNTL, 0xfffffff7, 0x00403000),
  96         SOC15_REG_GOLDEN_VALUE(GC, 0, mmSDMA0_RLC2_RB_WPTR_POLL_CNTL, 0xfffffff7, 0x00403000),
  97         SOC15_REG_GOLDEN_VALUE(GC, 0, mmSDMA0_RLC3_RB_WPTR_POLL_CNTL, 0xfffffff7, 0x00403000),
  98         SOC15_REG_GOLDEN_VALUE(GC, 0, mmSDMA0_RLC4_RB_WPTR_POLL_CNTL, 0xfffffff7, 0x00403000),
  99         SOC15_REG_GOLDEN_VALUE(GC, 0, mmSDMA0_RLC5_RB_WPTR_POLL_CNTL, 0xfffffff7, 0x00403000),
 100         SOC15_REG_GOLDEN_VALUE(GC, 0, mmSDMA0_RLC6_RB_WPTR_POLL_CNTL, 0xfffffff7, 0x00403000),
 101         SOC15_REG_GOLDEN_VALUE(GC, 0, mmSDMA0_RLC7_RB_WPTR_POLL_CNTL, 0xfffffff7, 0x00403000),
 102         SOC15_REG_GOLDEN_VALUE(GC, 0, mmSDMA1_GFX_RB_WPTR_POLL_CNTL, 0xfffffff7, 0x00403000),
 103         SOC15_REG_GOLDEN_VALUE(GC, 0, mmSDMA1_PAGE_RB_WPTR_POLL_CNTL, 0xfffffff7, 0x00403000),
 104         SOC15_REG_GOLDEN_VALUE(GC, 0, mmSDMA1_RLC0_RB_WPTR_POLL_CNTL, 0xfffffff7, 0x00403000),
 105         SOC15_REG_GOLDEN_VALUE(GC, 0, mmSDMA1_RLC1_RB_WPTR_POLL_CNTL, 0xfffffff7, 0x00403000),
 106         SOC15_REG_GOLDEN_VALUE(GC, 0, mmSDMA1_RLC2_RB_WPTR_POLL_CNTL, 0xfffffff7, 0x00403000),
 107         SOC15_REG_GOLDEN_VALUE(GC, 0, mmSDMA1_RLC3_RB_WPTR_POLL_CNTL, 0xfffffff7, 0x00403000),
 108         SOC15_REG_GOLDEN_VALUE(GC, 0, mmSDMA1_RLC4_RB_WPTR_POLL_CNTL, 0xfffffff7, 0x00403000),
 109         SOC15_REG_GOLDEN_VALUE(GC, 0, mmSDMA1_RLC5_RB_WPTR_POLL_CNTL, 0xfffffff7, 0x00403000),
 110         SOC15_REG_GOLDEN_VALUE(GC, 0, mmSDMA1_RLC6_RB_WPTR_POLL_CNTL, 0xfffffff7, 0x00403000),
 111         SOC15_REG_GOLDEN_VALUE(GC, 0, mmSDMA1_RLC7_RB_WPTR_POLL_CNTL, 0xfffffff7, 0x00403000),
 112 };
 113
 114 static const struct soc15_reg_golden golden_settings_sdma_nv10[] = {
 115         SOC15_REG_GOLDEN_VALUE(GC, 0, mmSDMA0_RLC3_RB_WPTR_POLL_CNTL, 0x0000fff0, 0x00403000),
 116         SOC15_REG_GOLDEN_VALUE(GC, 0, mmSDMA1_RLC3_RB_WPTR_POLL_CNTL, 0x0000fff0, 0x00403000),
 117 };
 118
 119 static const struct soc15_reg_golden golden_settings_sdma_nv14[] = {
 120         SOC15_REG_GOLDEN_VALUE(GC, 0, mmSDMA0_RLC3_RB_WPTR_POLL_CNTL, 0xfffffff7, 0x00403000),
 121         SOC15_REG_GOLDEN_VALUE(GC, 0, mmSDMA1_RLC3_RB_WPTR_POLL_CNTL, 0xfffffff7, 0x00403000),
 122 };
 123
 124 static const struct soc15_reg_golden golden_settings_sdma_nv12[] = {
 125         SOC15_REG_GOLDEN_VALUE(GC, 0, mmSDMA0_RLC3_RB_WPTR_POLL_CNTL, 0xfffffff7, 0x00403000),
 126         SOC15_REG_GOLDEN_VALUE(GC, 0, mmSDMA1_RLC3_RB_WPTR_POLL_CNTL, 0xfffffff7, 0x00403000),
 127 };
 128
 129 static u32 sdma_v5_0_get_reg_offset(struct amdgpu_device *adev, u32 instance, u32 internal_offset)
 130 {
 131         u32 base;
 132
 133         if (internal_offset >= SDMA0_HYP_DEC_REG_START &&
 134             internal_offset <= SDMA0_HYP_DEC_REG_END) {
 135                 base = adev->reg_offset[GC_HWIP][0][1];
 136                 if (instance == 1)
 137                         internal_offset += SDMA1_HYP_DEC_REG_OFFSET;
 138         } else {
 139                 base = adev->reg_offset[GC_HWIP][0][0];
 140                 if (instance == 1)
 141                         internal_offset += SDMA1_REG_OFFSET;
 142         }
 143
 144         return base + internal_offset;
 145 }
 146
 147 static void sdma_v5_0_init_golden_registers(struct amdgpu_device *adev)
 148 {
 149         switch (adev->asic_type) {
 150         case CHIP_NAVI10:
 151                 soc15_program_register_sequence(adev,
 152                                                 golden_settings_sdma_5,
 153                                                 (const u32)ARRAY_SIZE(golden_settings_sdma_5));
 154                 soc15_program_register_sequence(adev,
 155                                                 golden_settings_sdma_nv10,
 156                                                 (const u32)ARRAY_SIZE(golden_settings_sdma_nv10));
 157                 break;
 158         case CHIP_NAVI14:
 159                 soc15_program_register_sequence(adev,
 160                                                 golden_settings_sdma_5,
 161                                                 (const u32)ARRAY_SIZE(golden_settings_sdma_5));
 162                 soc15_program_register_sequence(adev,
 163                                                 golden_settings_sdma_nv14,
 164                                                 (const u32)ARRAY_SIZE(golden_settings_sdma_nv14));
 165                 break;
 166         case CHIP_NAVI12:
 167                 if (amdgpu_sriov_vf(adev))
 168                         soc15_program_register_sequence(adev,
 169                                                         golden_settings_sdma_5_sriov,
 170                                                         (const u32)ARRAY_SIZE(golden_settings_sdma_5_sriov));
 171                 else
 172                         soc15_program_register_sequence(adev,
 173                                                         golden_settings_sdma_5,
 174                                                         (const u32)ARRAY_SIZE(golden_settings_sdma_5));
 175                 soc15_program_register_sequence(adev,
 176                                                 golden_settings_sdma_nv12,
 177                                                 (const u32)ARRAY_SIZE(golden_settings_sdma_nv12));
 178                 break;
 179         default:
 180                 break;
 181         }
 182 }
 183
 184 /**
 185  * sdma_v5_0_init_microcode - load ucode images from disk
 186  *
 187  * @adev: amdgpu_device pointer
 188  *
 189  * Use the firmware interface to load the ucode images into
 190  * the driver (not loaded into hw).
 191  * Returns 0 on success, error on failure.
 192  */
 193
 194 // emulation only, won't work on real chip
 195 // navi10 real chip need to use PSP to load firmware
 196 static int sdma_v5_0_init_microcode(struct amdgpu_device *adev)
 197 {
 198         const char *chip_name;
 199         char fw_name[30];
 200         int err = 0, i;
 201         struct amdgpu_firmware_info *info = NULL;
 202         const struct common_firmware_header *header = NULL;
 203         const struct sdma_firmware_header_v1_0 *hdr;
 204
 205         if (amdgpu_sriov_vf(adev) && (adev->asic_type == CHIP_NAVI12))
 206                 return 0;
 207
 208         DRM_DEBUG("\n");
 209
 210         switch (adev->asic_type) {
 211         case CHIP_NAVI10:
 212                 chip_name = "navi10";
 213                 break;
 214         case CHIP_NAVI14:
 215                 chip_name = "navi14";
 216                 break;
 217         case CHIP_NAVI12:
 218                 chip_name = "navi12";
 219                 break;
 220         default:
 221                 BUG();
 222         }
 223
 224         for (i = 0; i < adev->sdma.num_instances; i++) {
 225                 if (i == 0)
 226                         snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_sdma.bin", chip_name);
 227                 else
 228                         snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_sdma1.bin", chip_name);
 229                 err = request_firmware(&adev->sdma.instance[i].fw, fw_name, adev->dev);
 230                 if (err)
 231                         goto out;
 232                 err = amdgpu_ucode_validate(adev->sdma.instance[i].fw);
 233                 if (err)
 234                         goto out;
 235                 hdr = (const struct sdma_firmware_header_v1_0 *)adev->sdma.instance[i].fw->data;
 236                 adev->sdma.instance[i].fw_version = le32_to_cpu(hdr->header.ucode_version);
 237                 adev->sdma.instance[i].feature_version = le32_to_cpu(hdr->ucode_feature_version);
 238                 if (adev->sdma.instance[i].feature_version >= 20)
 239                         adev->sdma.instance[i].burst_nop = true;
 240                 DRM_DEBUG("psp_load == '%s'\n",
 241                                 adev->firmware.load_type == AMDGPU_FW_LOAD_PSP ? "true" : "false");
 242
 243                 if (adev->firmware.load_type == AMDGPU_FW_LOAD_PSP) {
 244                         info = &adev->firmware.ucode[AMDGPU_UCODE_ID_SDMA0 + i];
 245                         info->ucode_id = AMDGPU_UCODE_ID_SDMA0 + i;
 246                         info->fw = adev->sdma.instance[i].fw;
 247                         header = (const struct common_firmware_header *)info->fw->data;
 248                         adev->firmware.fw_size +=
 249                                 ALIGN(le32_to_cpu(header->ucode_size_bytes), PAGE_SIZE);
 250                 }
 251         }
 252 out:
 253         if (err) {
 254                 DRM_ERROR("sdma_v5_0: Failed to load firmware \"%s\"\n", fw_name);
 255                 for (i = 0; i < adev->sdma.num_instances; i++) {
 256                         release_firmware(adev->sdma.instance[i].fw);
 257                         adev->sdma.instance[i].fw = NULL;
 258                 }
 259         }
 260         return err;
 261 }
 262
 263 static unsigned sdma_v5_0_ring_init_cond_exec(struct amdgpu_ring *ring)
 264 {
 265         unsigned ret;
 266
 267         amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_COND_EXE));
 268         amdgpu_ring_write(ring, lower_32_bits(ring->cond_exe_gpu_addr));
 269         amdgpu_ring_write(ring, upper_32_bits(ring->cond_exe_gpu_addr));
 270         amdgpu_ring_write(ring, 1);
 271         ret = ring->wptr & ring->buf_mask;/* this is the offset we need patch later */
 272         amdgpu_ring_write(ring, 0x55aa55aa);/* insert dummy here and patch it later */
 273
 274         return ret;
 275 }
 276
 277 static void sdma_v5_0_ring_patch_cond_exec(struct amdgpu_ring *ring,
 278                                            unsigned offset)
 279 {
 280         unsigned cur;
 281
 282         BUG_ON(offset > ring->buf_mask);
 283         BUG_ON(ring->ring[offset] != 0x55aa55aa);
 284
 285         cur = (ring->wptr - 1) & ring->buf_mask;
 286         if (cur > offset)
 287                 ring->ring[offset] = cur - offset;
 288         else
 289                 ring->ring[offset] = (ring->buf_mask + 1) - offset + cur;
 290 }
 291
 292 /**
 293  * sdma_v5_0_ring_get_rptr - get the current read pointer
 294  *
 295  * @ring: amdgpu ring pointer
 296  *
 297  * Get the current rptr from the hardware (NAVI10+).
 298  */
 299 static uint64_t sdma_v5_0_ring_get_rptr(struct amdgpu_ring *ring)
 300 {
 301         u64 *rptr;
 302
 303         /* XXX check if swapping is necessary on BE */
 304         rptr = ((u64 *)&ring->adev->wb.wb[ring->rptr_offs]);
 305
 306         DRM_DEBUG("rptr before shift == 0x%016llx\n", *rptr);
 307         return ((*rptr) >> 2);
 308 }
 309
 310 /**
 311  * sdma_v5_0_ring_get_wptr - get the current write pointer
 312  *
 313  * @ring: amdgpu ring pointer
 314  *
 315  * Get the current wptr from the hardware (NAVI10+).
 316  */
 317 static uint64_t sdma_v5_0_ring_get_wptr(struct amdgpu_ring *ring)
 318 {
 319         struct amdgpu_device *adev = ring->adev;
 320         u64 wptr;
 321
 322         if (ring->use_doorbell) {
 323                 /* XXX check if swapping is necessary on BE */
 324                 wptr = READ_ONCE(*((u64 *)&adev->wb.wb[ring->wptr_offs]));
 325                 DRM_DEBUG("wptr/doorbell before shift == 0x%016llx\n", wptr);
 326         } else {
 327                 wptr = RREG32(sdma_v5_0_get_reg_offset(adev, ring->me, mmSDMA0_GFX_RB_WPTR_HI));
 328                 wptr = wptr << 32;
 329                 wptr |= RREG32(sdma_v5_0_get_reg_offset(adev, ring->me, mmSDMA0_GFX_RB_WPTR));
 330                 DRM_DEBUG("wptr before shift [%i] wptr == 0x%016llx\n", ring->me, wptr);
 331         }
 332
 333         return wptr >> 2;
 334 }
 335
 336 /**
 337  * sdma_v5_0_ring_set_wptr - commit the write pointer
 338  *
 339  * @ring: amdgpu ring pointer
 340  *
 341  * Write the wptr back to the hardware (NAVI10+).
 342  */
 343 static void sdma_v5_0_ring_set_wptr(struct amdgpu_ring *ring)
 344 {
 345         struct amdgpu_device *adev = ring->adev;
 346
 347         DRM_DEBUG("Setting write pointer\n");
 348         if (ring->use_doorbell) {
 349                 DRM_DEBUG("Using doorbell -- "
 350                                 "wptr_offs == 0x%08x "
 351                                 "lower_32_bits(ring->wptr) << 2 == 0x%08x "
 352                                 "upper_32_bits(ring->wptr) << 2 == 0x%08x\n",
 353                                 ring->wptr_offs,
 354                                 lower_32_bits(ring->wptr << 2),
 355                                 upper_32_bits(ring->wptr << 2));
 356                 /* XXX check if swapping is necessary on BE */
 357                 adev->wb.wb[ring->wptr_offs] = lower_32_bits(ring->wptr << 2);
 358                 adev->wb.wb[ring->wptr_offs + 1] = upper_32_bits(ring->wptr << 2);
 359                 DRM_DEBUG("calling WDOORBELL64(0x%08x, 0x%016llx)\n",
 360                                 ring->doorbell_index, ring->wptr << 2);
 361                 WDOORBELL64(ring->doorbell_index, ring->wptr << 2);
 362         } else {
 363                 DRM_DEBUG("Not using doorbell -- "
 364                                 "mmSDMA%i_GFX_RB_WPTR == 0x%08x "
 365                                 "mmSDMA%i_GFX_RB_WPTR_HI == 0x%08x\n",
 366                                 ring->me,
 367                                 lower_32_bits(ring->wptr << 2),
 368                                 ring->me,
 369                                 upper_32_bits(ring->wptr << 2));
 370                 WREG32(sdma_v5_0_get_reg_offset(adev, ring->me, mmSDMA0_GFX_RB_WPTR),
 371                         lower_32_bits(ring->wptr << 2));
 372                 WREG32(sdma_v5_0_get_reg_offset(adev, ring->me, mmSDMA0_GFX_RB_WPTR_HI),
 373                         upper_32_bits(ring->wptr << 2));
 374         }
 375 }
 376
 377 static void sdma_v5_0_ring_insert_nop(struct amdgpu_ring *ring, uint32_t count)
 378 {
 379         struct amdgpu_sdma_instance *sdma = amdgpu_sdma_get_instance_from_ring(ring);
 380         int i;
 381
 382         for (i = 0; i < count; i++)
 383                 if (sdma && sdma->burst_nop && (i == 0))
 384                         amdgpu_ring_write(ring, ring->funcs->nop |
 385                                 SDMA_PKT_NOP_HEADER_COUNT(count - 1));
 386                 else
 387                         amdgpu_ring_write(ring, ring->funcs->nop);
 388 }
 389
 390 /**
 391  * sdma_v5_0_ring_emit_ib - Schedule an IB on the DMA engine
 392  *
 393  * @ring: amdgpu ring pointer
 394  * @job: job to retrieve vmid from
 395  * @ib: IB object to schedule
 396  * @flags: unused
 397  *
 398  * Schedule an IB in the DMA ring (NAVI10).
 399  */
 400 static void sdma_v5_0_ring_emit_ib(struct amdgpu_ring *ring,
 401                                    struct amdgpu_job *job,
 402                                    struct amdgpu_ib *ib,
 403                                    uint32_t flags)
 404 {
 405         unsigned vmid = AMDGPU_JOB_GET_VMID(job);
 406         uint64_t csa_mc_addr = amdgpu_sdma_get_csa_mc_addr(ring, vmid);
 407
 408         /* Invalidate L2, because if we don't do it, we might get stale cache
 409          * lines from previous IBs.
 410          */
 411         amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_GCR_REQ));
 412         amdgpu_ring_write(ring, 0);
 413         amdgpu_ring_write(ring, (SDMA_GCR_GL2_INV |
 414                                  SDMA_GCR_GL2_WB |
 415                                  SDMA_GCR_GLM_INV |
 416                                  SDMA_GCR_GLM_WB) << 16);
 417         amdgpu_ring_write(ring, 0xffffff80);
 418         amdgpu_ring_write(ring, 0xffff);
 419
 420         /* An IB packet must end on a 8 DW boundary--the next dword
 421          * must be on a 8-dword boundary. Our IB packet below is 6
 422          * dwords long, thus add x number of NOPs, such that, in
 423          * modular arithmetic,
 424          * wptr + 6 + x = 8k, k >= 0, which in C is,
 425          * (wptr + 6 + x) % 8 = 0.
 426          * The expression below, is a solution of x.
 427          */
 428         sdma_v5_0_ring_insert_nop(ring, (2 - lower_32_bits(ring->wptr)) & 7);
 429
 430         amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_INDIRECT) |
 431                           SDMA_PKT_INDIRECT_HEADER_VMID(vmid & 0xf));
 432         /* base must be 32 byte aligned */
 433         amdgpu_ring_write(ring, lower_32_bits(ib->gpu_addr) & 0xffffffe0);
 434         amdgpu_ring_write(ring, upper_32_bits(ib->gpu_addr));
 435         amdgpu_ring_write(ring, ib->length_dw);
 436         amdgpu_ring_write(ring, lower_32_bits(csa_mc_addr));
 437         amdgpu_ring_write(ring, upper_32_bits(csa_mc_addr));
 438 }
 439
 440 /**
 441  * sdma_v5_0_ring_emit_hdp_flush - emit an hdp flush on the DMA ring
 442  *
 443  * @ring: amdgpu ring pointer
 444  *
 445  * Emit an hdp flush packet on the requested DMA ring.
 446  */
 447 static void sdma_v5_0_ring_emit_hdp_flush(struct amdgpu_ring *ring)
 448 {
 449         struct amdgpu_device *adev = ring->adev;
 450         u32 ref_and_mask = 0;
 451         const struct nbio_hdp_flush_reg *nbio_hf_reg = adev->nbio.hdp_flush_reg;
 452
 453         if (ring->me == 0)
 454                 ref_and_mask = nbio_hf_reg->ref_and_mask_sdma0;
 455         else
 456                 ref_and_mask = nbio_hf_reg->ref_and_mask_sdma1;
 457
 458         amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_POLL_REGMEM) |
 459                           SDMA_PKT_POLL_REGMEM_HEADER_HDP_FLUSH(1) |
 460                           SDMA_PKT_POLL_REGMEM_HEADER_FUNC(3)); /* == */
 461         amdgpu_ring_write(ring, (adev->nbio.funcs->get_hdp_flush_done_offset(adev)) << 2);
 462         amdgpu_ring_write(ring, (adev->nbio.funcs->get_hdp_flush_req_offset(adev)) << 2);
 463         amdgpu_ring_write(ring, ref_and_mask); /* reference */
 464         amdgpu_ring_write(ring, ref_and_mask); /* mask */
 465         amdgpu_ring_write(ring, SDMA_PKT_POLL_REGMEM_DW5_RETRY_COUNT(0xfff) |
 466                           SDMA_PKT_POLL_REGMEM_DW5_INTERVAL(10)); /* retry count, poll interval */
 467 }
 468
 469 /**
 470  * sdma_v5_0_ring_emit_fence - emit a fence on the DMA ring
 471  *
 472  * @ring: amdgpu ring pointer
 473  * @addr: address
 474  * @seq: sequence number
 475  * @flags: fence related flags
 476  *
 477  * Add a DMA fence packet to the ring to write
 478  * the fence seq number and DMA trap packet to generate
 479  * an interrupt if needed (NAVI10).
 480  */
 481 static void sdma_v5_0_ring_emit_fence(struct amdgpu_ring *ring, u64 addr, u64 seq,
 482                                       unsigned flags)
 483 {
 484         bool write64bit = flags & AMDGPU_FENCE_FLAG_64BIT;
 485         /* write the fence */
 486         amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_FENCE) |
 487                           SDMA_PKT_FENCE_HEADER_MTYPE(0x3)); /* Ucached(UC) */
 488         /* zero in first two bits */
 489         BUG_ON(addr & 0x3);
 490         amdgpu_ring_write(ring, lower_32_bits(addr));
 491         amdgpu_ring_write(ring, upper_32_bits(addr));
 492         amdgpu_ring_write(ring, lower_32_bits(seq));
 493
 494         /* optionally write high bits as well */
 495         if (write64bit) {
 496                 addr += 4;
 497                 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_FENCE) |
 498                                   SDMA_PKT_FENCE_HEADER_MTYPE(0x3));
 499                 /* zero in first two bits */
 500                 BUG_ON(addr & 0x3);
 501                 amdgpu_ring_write(ring, lower_32_bits(addr));
 502                 amdgpu_ring_write(ring, upper_32_bits(addr));
 503                 amdgpu_ring_write(ring, upper_32_bits(seq));
 504         }
 505
 506         if (flags & AMDGPU_FENCE_FLAG_INT) {
 507                 /* generate an interrupt */
 508                 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_TRAP));
 509                 amdgpu_ring_write(ring, SDMA_PKT_TRAP_INT_CONTEXT_INT_CONTEXT(0));
 510         }
 511 }
 512
 513
 514 /**
 515  * sdma_v5_0_gfx_stop - stop the gfx async dma engines
 516  *
 517  * @adev: amdgpu_device pointer
 518  *
 519  * Stop the gfx async dma ring buffers (NAVI10).
 520  */
 521 static void sdma_v5_0_gfx_stop(struct amdgpu_device *adev)
 522 {
 523         struct amdgpu_ring *sdma0 = &adev->sdma.instance[0].ring;
 524         struct amdgpu_ring *sdma1 = &adev->sdma.instance[1].ring;
 525         u32 rb_cntl, ib_cntl;
 526         int i;
 527
 528         if ((adev->mman.buffer_funcs_ring == sdma0) ||
 529             (adev->mman.buffer_funcs_ring == sdma1))
 530                 amdgpu_ttm_set_buffer_funcs_status(adev, false);
 531
 532         for (i = 0; i < adev->sdma.num_instances; i++) {
 533                 rb_cntl = RREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_CNTL));
 534                 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RB_ENABLE, 0);
 535                 WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_CNTL), rb_cntl);
 536                 ib_cntl = RREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_IB_CNTL));
 537                 ib_cntl = REG_SET_FIELD(ib_cntl, SDMA0_GFX_IB_CNTL, IB_ENABLE, 0);
 538                 WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_IB_CNTL), ib_cntl);
 539         }
 540 }
 541
 542 /**
 543  * sdma_v5_0_rlc_stop - stop the compute async dma engines
 544  *
 545  * @adev: amdgpu_device pointer
 546  *
 547  * Stop the compute async dma queues (NAVI10).
 548  */
 549 static void sdma_v5_0_rlc_stop(struct amdgpu_device *adev)
 550 {
 551         /* XXX todo */
 552 }
 553
 554 /**
 555  * sdma_v_0_ctx_switch_enable - stop the async dma engines context switch
 556  *
 557  * @adev: amdgpu_device pointer
 558  * @enable: enable/disable the DMA MEs context switch.
 559  *
 560  * Halt or unhalt the async dma engines context switch (NAVI10).
 561  */
 562 static void sdma_v5_0_ctx_switch_enable(struct amdgpu_device *adev, bool enable)
 563 {
 564         u32 f32_cntl = 0, phase_quantum = 0;
 565         int i;
 566
 567         if (amdgpu_sdma_phase_quantum) {
 568                 unsigned value = amdgpu_sdma_phase_quantum;
 569                 unsigned unit = 0;
 570
 571                 while (value > (SDMA0_PHASE0_QUANTUM__VALUE_MASK >>
 572                                 SDMA0_PHASE0_QUANTUM__VALUE__SHIFT)) {
 573                         value = (value + 1) >> 1;
 574                         unit++;
 575                 }
 576                 if (unit > (SDMA0_PHASE0_QUANTUM__UNIT_MASK >>
 577                             SDMA0_PHASE0_QUANTUM__UNIT__SHIFT)) {
 578                         value = (SDMA0_PHASE0_QUANTUM__VALUE_MASK >>
 579                                  SDMA0_PHASE0_QUANTUM__VALUE__SHIFT);
 580                         unit = (SDMA0_PHASE0_QUANTUM__UNIT_MASK >>
 581                                 SDMA0_PHASE0_QUANTUM__UNIT__SHIFT);
 582                         WARN_ONCE(1,
 583                         "clamping sdma_phase_quantum to %uK clock cycles\n",
 584                                   value << unit);
 585                 }
 586                 phase_quantum =
 587                         value << SDMA0_PHASE0_QUANTUM__VALUE__SHIFT |
 588                         unit  << SDMA0_PHASE0_QUANTUM__UNIT__SHIFT;
 589         }
 590
 591         for (i = 0; i < adev->sdma.num_instances; i++) {
 592                 if (!amdgpu_sriov_vf(adev)) {
 593                         f32_cntl = RREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_CNTL));
 594                         f32_cntl = REG_SET_FIELD(f32_cntl, SDMA0_CNTL,
 595                                                  AUTO_CTXSW_ENABLE, enable ? 1 : 0);
 596                 }
 597
 598                 if (enable && amdgpu_sdma_phase_quantum) {
 599                         WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_PHASE0_QUANTUM),
 600                                phase_quantum);
 601                         WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_PHASE1_QUANTUM),
 602                                phase_quantum);
 603                         WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_PHASE2_QUANTUM),
 604                                phase_quantum);
 605                 }
 606                 if (!amdgpu_sriov_vf(adev))
 607                         WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_CNTL), f32_cntl);
 608         }
 609
 610 }
 611
 612 /**
 613  * sdma_v5_0_enable - stop the async dma engines
 614  *
 615  * @adev: amdgpu_device pointer
 616  * @enable: enable/disable the DMA MEs.
 617  *
 618  * Halt or unhalt the async dma engines (NAVI10).
 619  */
 620 static void sdma_v5_0_enable(struct amdgpu_device *adev, bool enable)
 621 {
 622         u32 f32_cntl;
 623         int i;
 624
 625         if (!enable) {
 626                 sdma_v5_0_gfx_stop(adev);
 627                 sdma_v5_0_rlc_stop(adev);
 628         }
 629
 630         if (amdgpu_sriov_vf(adev))
 631                 return;
 632
 633         for (i = 0; i < adev->sdma.num_instances; i++) {
 634                 f32_cntl = RREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_F32_CNTL));
 635                 f32_cntl = REG_SET_FIELD(f32_cntl, SDMA0_F32_CNTL, HALT, enable ? 0 : 1);
 636                 WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_F32_CNTL), f32_cntl);
 637         }
 638 }
 639
 640 /**
 641  * sdma_v5_0_gfx_resume - setup and start the async dma engines
 642  *
 643  * @adev: amdgpu_device pointer
 644  *
 645  * Set up the gfx DMA ring buffers and enable them (NAVI10).
 646  * Returns 0 for success, error for failure.
 647  */
 648 static int sdma_v5_0_gfx_resume(struct amdgpu_device *adev)
 649 {
 650         struct amdgpu_ring *ring;
 651         u32 rb_cntl, ib_cntl;
 652         u32 rb_bufsz;
 653         u32 wb_offset;
 654         u32 doorbell;
 655         u32 doorbell_offset;
 656         u32 temp;
 657         u32 wptr_poll_cntl;
 658         u64 wptr_gpu_addr;
 659         int i, r;
 660
 661         for (i = 0; i < adev->sdma.num_instances; i++) {
 662                 ring = &adev->sdma.instance[i].ring;
 663                 wb_offset = (ring->rptr_offs * 4);
 664
 665                 if (!amdgpu_sriov_vf(adev))
 666                         WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_SEM_WAIT_FAIL_TIMER_CNTL), 0);
 667
 668                 /* Set ring buffer size in dwords */
 669                 rb_bufsz = order_base_2(ring->ring_size / 4);
 670                 rb_cntl = RREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_CNTL));
 671                 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RB_SIZE, rb_bufsz);
 672 #ifdef __BIG_ENDIAN
 673                 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RB_SWAP_ENABLE, 1);
 674                 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL,
 675                                         RPTR_WRITEBACK_SWAP_ENABLE, 1);
 676 #endif
 677                 WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_CNTL), rb_cntl);
 678
 679                 /* Initialize the ring buffer's read and write pointers */
 680                 WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_RPTR), 0);
 681                 WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_RPTR_HI), 0);
 682                 WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_WPTR), 0);
 683                 WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_WPTR_HI), 0);
 684
 685                 /* setup the wptr shadow polling */
 686                 wptr_gpu_addr = adev->wb.gpu_addr + (ring->wptr_offs * 4);
 687                 WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_WPTR_POLL_ADDR_LO),
 688                        lower_32_bits(wptr_gpu_addr));
 689                 WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_WPTR_POLL_ADDR_HI),
 690                        upper_32_bits(wptr_gpu_addr));
 691                 wptr_poll_cntl = RREG32(sdma_v5_0_get_reg_offset(adev, i,
 692                                                          mmSDMA0_GFX_RB_WPTR_POLL_CNTL));
 693                 wptr_poll_cntl = REG_SET_FIELD(wptr_poll_cntl,
 694                                                SDMA0_GFX_RB_WPTR_POLL_CNTL,
 695                                                F32_POLL_ENABLE, 1);
 696                 WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_WPTR_POLL_CNTL),
 697                        wptr_poll_cntl);
 698
 699                 /* set the wb address whether it's enabled or not */
 700                 WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_RPTR_ADDR_HI),
 701                        upper_32_bits(adev->wb.gpu_addr + wb_offset) & 0xFFFFFFFF);
 702                 WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_RPTR_ADDR_LO),
 703                        lower_32_bits(adev->wb.gpu_addr + wb_offset) & 0xFFFFFFFC);
 704
 705                 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RPTR_WRITEBACK_ENABLE, 1);
 706
 707                 WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_BASE), ring->gpu_addr >> 8);
 708                 WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_BASE_HI), ring->gpu_addr >> 40);
 709
 710                 ring->wptr = 0;
 711
 712                 /* before programing wptr to a less value, need set minor_ptr_update first */
 713                 WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_MINOR_PTR_UPDATE), 1);
 714
 715                 if (!amdgpu_sriov_vf(adev)) { /* only bare-metal use register write for wptr */
 716                         WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_WPTR), lower_32_bits(ring->wptr) << 2);
 717                         WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_WPTR_HI), upper_32_bits(ring->wptr) << 2);
 718                 }
 719
 720                 doorbell = RREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_DOORBELL));
 721                 doorbell_offset = RREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_DOORBELL_OFFSET));
 722
 723                 if (ring->use_doorbell) {
 724                         doorbell = REG_SET_FIELD(doorbell, SDMA0_GFX_DOORBELL, ENABLE, 1);
 725                         doorbell_offset = REG_SET_FIELD(doorbell_offset, SDMA0_GFX_DOORBELL_OFFSET,
 726                                         OFFSET, ring->doorbell_index);
 727                 } else {
 728                         doorbell = REG_SET_FIELD(doorbell, SDMA0_GFX_DOORBELL, ENABLE, 0);
 729                 }
 730                 WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_DOORBELL), doorbell);
 731                 WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_DOORBELL_OFFSET), doorbell_offset);
 732
 733                 adev->nbio.funcs->sdma_doorbell_range(adev, i, ring->use_doorbell,
 734                                                       ring->doorbell_index, 20);
 735
 736                 if (amdgpu_sriov_vf(adev))
 737                         sdma_v5_0_ring_set_wptr(ring);
 738
 739                 /* set minor_ptr_update to 0 after wptr programed */
 740                 WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_MINOR_PTR_UPDATE), 0);
 741
 742                 if (!amdgpu_sriov_vf(adev)) {
 743                         /* set utc l1 enable flag always to 1 */
 744                         temp = RREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_CNTL));
 745                         temp = REG_SET_FIELD(temp, SDMA0_CNTL, UTC_L1_ENABLE, 1);
 746
 747                         /* enable MCBP */
 748                         temp = REG_SET_FIELD(temp, SDMA0_CNTL, MIDCMD_PREEMPT_ENABLE, 1);
 749                         WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_CNTL), temp);
 750
 751                         /* Set up RESP_MODE to non-copy addresses */
 752                         temp = RREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_UTCL1_CNTL));
 753                         temp = REG_SET_FIELD(temp, SDMA0_UTCL1_CNTL, RESP_MODE, 3);
 754                         temp = REG_SET_FIELD(temp, SDMA0_UTCL1_CNTL, REDO_DELAY, 9);
 755                         WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_UTCL1_CNTL), temp);
 756
 757                         /* program default cache read and write policy */
 758                         temp = RREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_UTCL1_PAGE));
 759                         /* clean read policy and write policy bits */
 760                         temp &= 0xFF0FFF;
 761                         temp |= ((CACHE_READ_POLICY_L2__DEFAULT << 12) | (CACHE_WRITE_POLICY_L2__DEFAULT << 14));
 762                         WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_UTCL1_PAGE), temp);
 763                 }
 764
 765                 if (!amdgpu_sriov_vf(adev)) {
 766                         /* unhalt engine */
 767                         temp = RREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_F32_CNTL));
 768                         temp = REG_SET_FIELD(temp, SDMA0_F32_CNTL, HALT, 0);
 769                         WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_F32_CNTL), temp);
 770                 }
 771
 772                 /* enable DMA RB */
 773                 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RB_ENABLE, 1);
 774                 WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_RB_CNTL), rb_cntl);
 775
 776                 ib_cntl = RREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_IB_CNTL));
 777                 ib_cntl = REG_SET_FIELD(ib_cntl, SDMA0_GFX_IB_CNTL, IB_ENABLE, 1);
 778 #ifdef __BIG_ENDIAN
 779                 ib_cntl = REG_SET_FIELD(ib_cntl, SDMA0_GFX_IB_CNTL, IB_SWAP_ENABLE, 1);
 780 #endif
 781                 /* enable DMA IBs */
 782                 WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_GFX_IB_CNTL), ib_cntl);
 783
 784                 ring->sched.ready = true;
 785
 786                 if (amdgpu_sriov_vf(adev)) { /* bare-metal sequence doesn't need below to lines */
 787                         sdma_v5_0_ctx_switch_enable(adev, true);
 788                         sdma_v5_0_enable(adev, true);
 789                 }
 790
 791                 r = amdgpu_ring_test_helper(ring);
 792                 if (r)
 793                         return r;
 794
 795                 if (adev->mman.buffer_funcs_ring == ring)
 796                         amdgpu_ttm_set_buffer_funcs_status(adev, true);
 797         }
 798
 799         return 0;
 800 }
 801
 802 /**
 803  * sdma_v5_0_rlc_resume - setup and start the async dma engines
 804  *
 805  * @adev: amdgpu_device pointer
 806  *
 807  * Set up the compute DMA queues and enable them (NAVI10).
 808  * Returns 0 for success, error for failure.
 809  */
 810 static int sdma_v5_0_rlc_resume(struct amdgpu_device *adev)
 811 {
 812         return 0;
 813 }
 814
 815 /**
 816  * sdma_v5_0_load_microcode - load the sDMA ME ucode
 817  *
 818  * @adev: amdgpu_device pointer
 819  *
 820  * Loads the sDMA0/1 ucode.
 821  * Returns 0 for success, -EINVAL if the ucode is not available.
 822  */
 823 static int sdma_v5_0_load_microcode(struct amdgpu_device *adev)
 824 {
 825         const struct sdma_firmware_header_v1_0 *hdr;
 826         const __le32 *fw_data;
 827         u32 fw_size;
 828         int i, j;
 829
 830         /* halt the MEs */
 831         sdma_v5_0_enable(adev, false);
 832
 833         for (i = 0; i < adev->sdma.num_instances; i++) {
 834                 if (!adev->sdma.instance[i].fw)
 835                         return -EINVAL;
 836
 837                 hdr = (const struct sdma_firmware_header_v1_0 *)adev->sdma.instance[i].fw->data;
 838                 amdgpu_ucode_print_sdma_hdr(&hdr->header);
 839                 fw_size = le32_to_cpu(hdr->header.ucode_size_bytes) / 4;
 840
 841                 fw_data = (const __le32 *)
 842                         (adev->sdma.instance[i].fw->data +
 843                                 le32_to_cpu(hdr->header.ucode_array_offset_bytes));
 844
 845                 WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_UCODE_ADDR), 0);
 846
 847                 for (j = 0; j < fw_size; j++) {
 848                         if (amdgpu_emu_mode == 1 && j % 500 == 0)
 849                                 msleep(1);
 850                         WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_UCODE_DATA), le32_to_cpup(fw_data++));
 851                 }
 852
 853                 WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_UCODE_ADDR), adev->sdma.instance[i].fw_version);
 854         }
 855
 856         return 0;
 857 }
 858
 859 /**
 860  * sdma_v5_0_start - setup and start the async dma engines
 861  *
 862  * @adev: amdgpu_device pointer
 863  *
 864  * Set up the DMA engines and enable them (NAVI10).
 865  * Returns 0 for success, error for failure.
 866  */
 867 static int sdma_v5_0_start(struct amdgpu_device *adev)
 868 {
 869         int r = 0;
 870
 871         if (amdgpu_sriov_vf(adev)) {
 872                 sdma_v5_0_ctx_switch_enable(adev, false);
 873                 sdma_v5_0_enable(adev, false);
 874
 875                 /* set RB registers */
 876                 r = sdma_v5_0_gfx_resume(adev);
 877                 return r;
 878         }
 879
 880         if (adev->firmware.load_type == AMDGPU_FW_LOAD_DIRECT) {
 881                 r = sdma_v5_0_load_microcode(adev);
 882                 if (r)
 883                         return r;
 884         }
 885
 886         /* unhalt the MEs */
 887         sdma_v5_0_enable(adev, true);
 888         /* enable sdma ring preemption */
 889         sdma_v5_0_ctx_switch_enable(adev, true);
 890
 891         /* start the gfx rings and rlc compute queues */
 892         r = sdma_v5_0_gfx_resume(adev);
 893         if (r)
 894                 return r;
 895         r = sdma_v5_0_rlc_resume(adev);
 896
 897         return r;
 898 }
 899
 900 /**
 901  * sdma_v5_0_ring_test_ring - simple async dma engine test
 902  *
 903  * @ring: amdgpu_ring structure holding ring information
 904  *
 905  * Test the DMA engine by writing using it to write an
 906  * value to memory. (NAVI10).
 907  * Returns 0 for success, error for failure.
 908  */
 909 static int sdma_v5_0_ring_test_ring(struct amdgpu_ring *ring)
 910 {
 911         struct amdgpu_device *adev = ring->adev;
 912         unsigned i;
 913         unsigned index;
 914         int r;
 915         u32 tmp;
 916         u64 gpu_addr;
 917
 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         tmp = 0xCAFEDEAD;
 926         adev->wb.wb[index] = cpu_to_le32(tmp);
 927
 928         r = amdgpu_ring_alloc(ring, 5);
 929         if (r) {
 930                 DRM_ERROR("amdgpu: dma failed to lock ring %d (%d).\n", ring->idx, r);
 931                 amdgpu_device_wb_free(adev, index);
 932                 return r;
 933         }
 934
 935         amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_WRITE) |
 936                           SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_WRITE_LINEAR));
 937         amdgpu_ring_write(ring, lower_32_bits(gpu_addr));
 938         amdgpu_ring_write(ring, upper_32_bits(gpu_addr));
 939         amdgpu_ring_write(ring, SDMA_PKT_WRITE_UNTILED_DW_3_COUNT(0));
 940         amdgpu_ring_write(ring, 0xDEADBEEF);
 941         amdgpu_ring_commit(ring);
 942
 943         for (i = 0; i < adev->usec_timeout; i++) {
 944                 tmp = le32_to_cpu(adev->wb.wb[index]);
 945                 if (tmp == 0xDEADBEEF)
 946                         break;
 947                 if (amdgpu_emu_mode == 1)
 948                         msleep(1);
 949                 else
 950                         udelay(1);
 951         }
 952
 953         if (i >= adev->usec_timeout)
 954                 r = -ETIMEDOUT;
 955
 956         amdgpu_device_wb_free(adev, index);
 957
 958         return r;
 959 }
 960
 961 /**
 962  * sdma_v5_0_ring_test_ib - test an IB on the DMA engine
 963  *
 964  * @ring: amdgpu_ring structure holding ring information
 965  * @timeout: timeout value in jiffies, or MAX_SCHEDULE_TIMEOUT
 966  *
 967  * Test a simple IB in the DMA ring (NAVI10).
 968  * Returns 0 on success, error on failure.
 969  */
 970 static int sdma_v5_0_ring_test_ib(struct amdgpu_ring *ring, long timeout)
 971 {
 972         struct amdgpu_device *adev = ring->adev;
 973         struct amdgpu_ib ib;
 974         struct dma_fence *f = NULL;
 975         unsigned index;
 976         long r;
 977         u32 tmp = 0;
 978         u64 gpu_addr;
 979
 980         r = amdgpu_device_wb_get(adev, &index);
 981         if (r) {
 982                 dev_err(adev->dev, "(%ld) failed to allocate wb slot\n", r);
 983                 return r;
 984         }
 985
 986         gpu_addr = adev->wb.gpu_addr + (index * 4);
 987         tmp = 0xCAFEDEAD;
 988         adev->wb.wb[index] = cpu_to_le32(tmp);
 989         memset(&ib, 0, sizeof(ib));
 990         r = amdgpu_ib_get(adev, NULL, 256,
 991                                         AMDGPU_IB_POOL_DIRECT, &ib);
 992         if (r) {
 993                 DRM_ERROR("amdgpu: failed to get ib (%ld).\n", r);
 994                 goto err0;
 995         }
 996
 997         ib.ptr[0] = SDMA_PKT_HEADER_OP(SDMA_OP_WRITE) |
 998                 SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_WRITE_LINEAR);
 999         ib.ptr[1] = lower_32_bits(gpu_addr);
1000         ib.ptr[2] = upper_32_bits(gpu_addr);
1001         ib.ptr[3] = SDMA_PKT_WRITE_UNTILED_DW_3_COUNT(0);
1002         ib.ptr[4] = 0xDEADBEEF;
1003         ib.ptr[5] = SDMA_PKT_NOP_HEADER_OP(SDMA_OP_NOP);
1004         ib.ptr[6] = SDMA_PKT_NOP_HEADER_OP(SDMA_OP_NOP);
1005         ib.ptr[7] = SDMA_PKT_NOP_HEADER_OP(SDMA_OP_NOP);
1006         ib.length_dw = 8;
1007
1008         r = amdgpu_ib_schedule(ring, 1, &ib, NULL, &f);
1009         if (r)
1010                 goto err1;
1011
1012         r = dma_fence_wait_timeout(f, false, timeout);
1013         if (r == 0) {
1014                 DRM_ERROR("amdgpu: IB test timed out\n");
1015                 r = -ETIMEDOUT;
1016                 goto err1;
1017         } else if (r < 0) {
1018                 DRM_ERROR("amdgpu: fence wait failed (%ld).\n", r);
1019                 goto err1;
1020         }
1021         tmp = le32_to_cpu(adev->wb.wb[index]);
1022         if (tmp == 0xDEADBEEF)
1023                 r = 0;
1024         else
1025                 r = -EINVAL;
1026
1027 err1:
1028         amdgpu_ib_free(adev, &ib, NULL);
1029         dma_fence_put(f);
1030 err0:
1031         amdgpu_device_wb_free(adev, index);
1032         return r;
1033 }
1034
1035
1036 /**
1037  * sdma_v5_0_vm_copy_pte - update PTEs by copying them from the GART
1038  *
1039  * @ib: indirect buffer to fill with commands
1040  * @pe: addr of the page entry
1041  * @src: src addr to copy from
1042  * @count: number of page entries to update
1043  *
1044  * Update PTEs by copying them from the GART using sDMA (NAVI10).
1045  */
1046 static void sdma_v5_0_vm_copy_pte(struct amdgpu_ib *ib,
1047                                   uint64_t pe, uint64_t src,
1048                                   unsigned count)
1049 {
1050         unsigned bytes = count * 8;
1051
1052         ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_COPY) |
1053                 SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_COPY_LINEAR);
1054         ib->ptr[ib->length_dw++] = bytes - 1;
1055         ib->ptr[ib->length_dw++] = 0; /* src/dst endian swap */
1056         ib->ptr[ib->length_dw++] = lower_32_bits(src);
1057         ib->ptr[ib->length_dw++] = upper_32_bits(src);
1058         ib->ptr[ib->length_dw++] = lower_32_bits(pe);
1059         ib->ptr[ib->length_dw++] = upper_32_bits(pe);
1060
1061 }
1062
1063 /**
1064  * sdma_v5_0_vm_write_pte - update PTEs by writing them manually
1065  *
1066  * @ib: indirect buffer to fill with commands
1067  * @pe: addr of the page entry
1068  * @value: dst addr to write into pe
1069  * @count: number of page entries to update
1070  * @incr: increase next addr by incr bytes
1071  *
1072  * Update PTEs by writing them manually using sDMA (NAVI10).
1073  */
1074 static void sdma_v5_0_vm_write_pte(struct amdgpu_ib *ib, uint64_t pe,
1075                                    uint64_t value, unsigned count,
1076                                    uint32_t incr)
1077 {
1078         unsigned ndw = count * 2;
1079
1080         ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_WRITE) |
1081                 SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_WRITE_LINEAR);
1082         ib->ptr[ib->length_dw++] = lower_32_bits(pe);
1083         ib->ptr[ib->length_dw++] = upper_32_bits(pe);
1084         ib->ptr[ib->length_dw++] = ndw - 1;
1085         for (; ndw > 0; ndw -= 2) {
1086                 ib->ptr[ib->length_dw++] = lower_32_bits(value);
1087                 ib->ptr[ib->length_dw++] = upper_32_bits(value);
1088                 value += incr;
1089         }
1090 }
1091
1092 /**
1093  * sdma_v5_0_vm_set_pte_pde - update the page tables using sDMA
1094  *
1095  * @ib: indirect buffer to fill with commands
1096  * @pe: addr of the page entry
1097  * @addr: dst addr to write into pe
1098  * @count: number of page entries to update
1099  * @incr: increase next addr by incr bytes
1100  * @flags: access flags
1101  *
1102  * Update the page tables using sDMA (NAVI10).
1103  */
1104 static void sdma_v5_0_vm_set_pte_pde(struct amdgpu_ib *ib,
1105                                      uint64_t pe,
1106                                      uint64_t addr, unsigned count,
1107                                      uint32_t incr, uint64_t flags)
1108 {
1109         /* for physically contiguous pages (vram) */
1110         ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_PTEPDE);
1111         ib->ptr[ib->length_dw++] = lower_32_bits(pe); /* dst addr */
1112         ib->ptr[ib->length_dw++] = upper_32_bits(pe);
1113         ib->ptr[ib->length_dw++] = lower_32_bits(flags); /* mask */
1114         ib->ptr[ib->length_dw++] = upper_32_bits(flags);
1115         ib->ptr[ib->length_dw++] = lower_32_bits(addr); /* value */
1116         ib->ptr[ib->length_dw++] = upper_32_bits(addr);
1117         ib->ptr[ib->length_dw++] = incr; /* increment size */
1118         ib->ptr[ib->length_dw++] = 0;
1119         ib->ptr[ib->length_dw++] = count - 1; /* number of entries */
1120 }
1121
1122 /**
1123  * sdma_v5_0_ring_pad_ib - pad the IB
1124  * @ring: amdgpu_ring structure holding ring information
1125  * @ib: indirect buffer to fill with padding
1126  *
1127  * Pad the IB with NOPs to a boundary multiple of 8.
1128  */
1129 static void sdma_v5_0_ring_pad_ib(struct amdgpu_ring *ring, struct amdgpu_ib *ib)
1130 {
1131         struct amdgpu_sdma_instance *sdma = amdgpu_sdma_get_instance_from_ring(ring);
1132         u32 pad_count;
1133         int i;
1134
1135         pad_count = (-ib->length_dw) & 0x7;
1136         for (i = 0; i < pad_count; i++)
1137                 if (sdma && sdma->burst_nop && (i == 0))
1138                         ib->ptr[ib->length_dw++] =
1139                                 SDMA_PKT_HEADER_OP(SDMA_OP_NOP) |
1140                                 SDMA_PKT_NOP_HEADER_COUNT(pad_count - 1);
1141                 else
1142                         ib->ptr[ib->length_dw++] =
1143                                 SDMA_PKT_HEADER_OP(SDMA_OP_NOP);
1144 }
1145
1146
1147 /**
1148  * sdma_v5_0_ring_emit_pipeline_sync - sync the pipeline
1149  *
1150  * @ring: amdgpu_ring pointer
1151  *
1152  * Make sure all previous operations are completed (CIK).
1153  */
1154 static void sdma_v5_0_ring_emit_pipeline_sync(struct amdgpu_ring *ring)
1155 {
1156         uint32_t seq = ring->fence_drv.sync_seq;
1157         uint64_t addr = ring->fence_drv.gpu_addr;
1158
1159         /* wait for idle */
1160         amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_POLL_REGMEM) |
1161                           SDMA_PKT_POLL_REGMEM_HEADER_HDP_FLUSH(0) |
1162                           SDMA_PKT_POLL_REGMEM_HEADER_FUNC(3) | /* equal */
1163                           SDMA_PKT_POLL_REGMEM_HEADER_MEM_POLL(1));
1164         amdgpu_ring_write(ring, addr & 0xfffffffc);
1165         amdgpu_ring_write(ring, upper_32_bits(addr) & 0xffffffff);
1166         amdgpu_ring_write(ring, seq); /* reference */
1167         amdgpu_ring_write(ring, 0xffffffff); /* mask */
1168         amdgpu_ring_write(ring, SDMA_PKT_POLL_REGMEM_DW5_RETRY_COUNT(0xfff) |
1169                           SDMA_PKT_POLL_REGMEM_DW5_INTERVAL(4)); /* retry count, poll interval */
1170 }
1171
1172
1173 /**
1174  * sdma_v5_0_ring_emit_vm_flush - vm flush using sDMA
1175  *
1176  * @ring: amdgpu_ring pointer
1177  * @vmid: vmid number to use
1178  * @pd_addr: address
1179  *
1180  * Update the page table base and flush the VM TLB
1181  * using sDMA (NAVI10).
1182  */
1183 static void sdma_v5_0_ring_emit_vm_flush(struct amdgpu_ring *ring,
1184                                          unsigned vmid, uint64_t pd_addr)
1185 {
1186         amdgpu_gmc_emit_flush_gpu_tlb(ring, vmid, pd_addr);
1187 }
1188
1189 static void sdma_v5_0_ring_emit_wreg(struct amdgpu_ring *ring,
1190                                      uint32_t reg, uint32_t val)
1191 {
1192         amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_SRBM_WRITE) |
1193                           SDMA_PKT_SRBM_WRITE_HEADER_BYTE_EN(0xf));
1194         amdgpu_ring_write(ring, reg);
1195         amdgpu_ring_write(ring, val);
1196 }
1197
1198 static void sdma_v5_0_ring_emit_reg_wait(struct amdgpu_ring *ring, uint32_t reg,
1199                                          uint32_t val, uint32_t mask)
1200 {
1201         amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_POLL_REGMEM) |
1202                           SDMA_PKT_POLL_REGMEM_HEADER_HDP_FLUSH(0) |
1203                           SDMA_PKT_POLL_REGMEM_HEADER_FUNC(3)); /* equal */
1204         amdgpu_ring_write(ring, reg << 2);
1205         amdgpu_ring_write(ring, 0);
1206         amdgpu_ring_write(ring, val); /* reference */
1207         amdgpu_ring_write(ring, mask); /* mask */
1208         amdgpu_ring_write(ring, SDMA_PKT_POLL_REGMEM_DW5_RETRY_COUNT(0xfff) |
1209                           SDMA_PKT_POLL_REGMEM_DW5_INTERVAL(10));
1210 }
1211
1212 static void sdma_v5_0_ring_emit_reg_write_reg_wait(struct amdgpu_ring *ring,
1213                                                    uint32_t reg0, uint32_t reg1,
1214                                                    uint32_t ref, uint32_t mask)
1215 {
1216         amdgpu_ring_emit_wreg(ring, reg0, ref);
1217         /* wait for a cycle to reset vm_inv_eng*_ack */
1218         amdgpu_ring_emit_reg_wait(ring, reg0, 0, 0);
1219         amdgpu_ring_emit_reg_wait(ring, reg1, mask, mask);
1220 }
1221
1222 static int sdma_v5_0_early_init(void *handle)
1223 {
1224         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1225
1226         adev->sdma.num_instances = 2;
1227
1228         sdma_v5_0_set_ring_funcs(adev);
1229         sdma_v5_0_set_buffer_funcs(adev);
1230         sdma_v5_0_set_vm_pte_funcs(adev);
1231         sdma_v5_0_set_irq_funcs(adev);
1232
1233         return 0;
1234 }
1235
1236
1237 static int sdma_v5_0_sw_init(void *handle)
1238 {
1239         struct amdgpu_ring *ring;
1240         int r, i;
1241         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1242
1243         /* SDMA trap event */
1244         r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_SDMA0,
1245                               SDMA0_5_0__SRCID__SDMA_TRAP,
1246                               &adev->sdma.trap_irq);
1247         if (r)
1248                 return r;
1249
1250         /* SDMA trap event */
1251         r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_SDMA1,
1252                               SDMA1_5_0__SRCID__SDMA_TRAP,
1253                               &adev->sdma.trap_irq);
1254         if (r)
1255                 return r;
1256
1257         r = sdma_v5_0_init_microcode(adev);
1258         if (r) {
1259                 DRM_ERROR("Failed to load sdma firmware!\n");
1260                 return r;
1261         }
1262
1263         for (i = 0; i < adev->sdma.num_instances; i++) {
1264                 ring = &adev->sdma.instance[i].ring;
1265                 ring->ring_obj = NULL;
1266                 ring->use_doorbell = true;
1267
1268                 DRM_DEBUG("SDMA %d use_doorbell being set to: [%s]\n", i,
1269                                 ring->use_doorbell?"true":"false");
1270
1271                 ring->doorbell_index = (i == 0) ?
1272                         (adev->doorbell_index.sdma_engine[0] << 1) //get DWORD offset
1273                         : (adev->doorbell_index.sdma_engine[1] << 1); // get DWORD offset
1274
1275                 sprintf(ring->name, "sdma%d", i);
1276                 r = amdgpu_ring_init(adev, ring, 1024,
1277                                      &adev->sdma.trap_irq,
1278                                      (i == 0) ?
1279                                      AMDGPU_SDMA_IRQ_INSTANCE0 :
1280                                      AMDGPU_SDMA_IRQ_INSTANCE1,
1281                                      AMDGPU_RING_PRIO_DEFAULT);
1282                 if (r)
1283                         return r;
1284         }
1285
1286         return r;
1287 }
1288
1289 static int sdma_v5_0_sw_fini(void *handle)
1290 {
1291         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1292         int i;
1293
1294         for (i = 0; i < adev->sdma.num_instances; i++) {
1295                 release_firmware(adev->sdma.instance[i].fw);
1296                 adev->sdma.instance[i].fw = NULL;
1297
1298                 amdgpu_ring_fini(&adev->sdma.instance[i].ring);
1299         }
1300
1301         return 0;
1302 }
1303
1304 static int sdma_v5_0_hw_init(void *handle)
1305 {
1306         int r;
1307         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1308
1309         sdma_v5_0_init_golden_registers(adev);
1310
1311         r = sdma_v5_0_start(adev);
1312
1313         return r;
1314 }
1315
1316 static int sdma_v5_0_hw_fini(void *handle)
1317 {
1318         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1319
1320         if (amdgpu_sriov_vf(adev))
1321                 return 0;
1322
1323         sdma_v5_0_ctx_switch_enable(adev, false);
1324         sdma_v5_0_enable(adev, false);
1325
1326         return 0;
1327 }
1328
1329 static int sdma_v5_0_suspend(void *handle)
1330 {
1331         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1332
1333         return sdma_v5_0_hw_fini(adev);
1334 }
1335
1336 static int sdma_v5_0_resume(void *handle)
1337 {
1338         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1339
1340         return sdma_v5_0_hw_init(adev);
1341 }
1342
1343 static bool sdma_v5_0_is_idle(void *handle)
1344 {
1345         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1346         u32 i;
1347
1348         for (i = 0; i < adev->sdma.num_instances; i++) {
1349                 u32 tmp = RREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_STATUS_REG));
1350
1351                 if (!(tmp & SDMA0_STATUS_REG__IDLE_MASK))
1352                         return false;
1353         }
1354
1355         return true;
1356 }
1357
1358 static int sdma_v5_0_wait_for_idle(void *handle)
1359 {
1360         unsigned i;
1361         u32 sdma0, sdma1;
1362         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1363
1364         for (i = 0; i < adev->usec_timeout; i++) {
1365                 sdma0 = RREG32(sdma_v5_0_get_reg_offset(adev, 0, mmSDMA0_STATUS_REG));
1366                 sdma1 = RREG32(sdma_v5_0_get_reg_offset(adev, 1, mmSDMA0_STATUS_REG));
1367
1368                 if (sdma0 & sdma1 & SDMA0_STATUS_REG__IDLE_MASK)
1369                         return 0;
1370                 udelay(1);
1371         }
1372         return -ETIMEDOUT;
1373 }
1374
1375 static int sdma_v5_0_soft_reset(void *handle)
1376 {
1377         /* todo */
1378
1379         return 0;
1380 }
1381
1382 static int sdma_v5_0_ring_preempt_ib(struct amdgpu_ring *ring)
1383 {
1384         int i, r = 0;
1385         struct amdgpu_device *adev = ring->adev;
1386         u32 index = 0;
1387         u64 sdma_gfx_preempt;
1388
1389         amdgpu_sdma_get_index_from_ring(ring, &index);
1390         if (index == 0)
1391                 sdma_gfx_preempt = mmSDMA0_GFX_PREEMPT;
1392         else
1393                 sdma_gfx_preempt = mmSDMA1_GFX_PREEMPT;
1394
1395         /* assert preemption condition */
1396         amdgpu_ring_set_preempt_cond_exec(ring, false);
1397
1398         /* emit the trailing fence */
1399         ring->trail_seq += 1;
1400         amdgpu_ring_alloc(ring, 10);
1401         sdma_v5_0_ring_emit_fence(ring, ring->trail_fence_gpu_addr,
1402                                   ring->trail_seq, 0);
1403         amdgpu_ring_commit(ring);
1404
1405         /* assert IB preemption */
1406         WREG32(sdma_gfx_preempt, 1);
1407
1408         /* poll the trailing fence */
1409         for (i = 0; i < adev->usec_timeout; i++) {
1410                 if (ring->trail_seq ==
1411                     le32_to_cpu(*(ring->trail_fence_cpu_addr)))
1412                         break;
1413                 udelay(1);
1414         }
1415
1416         if (i >= adev->usec_timeout) {
1417                 r = -EINVAL;
1418                 DRM_ERROR("ring %d failed to be preempted\n", ring->idx);
1419         }
1420
1421         /* deassert IB preemption */
1422         WREG32(sdma_gfx_preempt, 0);
1423
1424         /* deassert the preemption condition */
1425         amdgpu_ring_set_preempt_cond_exec(ring, true);
1426         return r;
1427 }
1428
1429 static int sdma_v5_0_set_trap_irq_state(struct amdgpu_device *adev,
1430                                         struct amdgpu_irq_src *source,
1431                                         unsigned type,
1432                                         enum amdgpu_interrupt_state state)
1433 {
1434         u32 sdma_cntl;
1435
1436         if (!amdgpu_sriov_vf(adev)) {
1437                 u32 reg_offset = (type == AMDGPU_SDMA_IRQ_INSTANCE0) ?
1438                         sdma_v5_0_get_reg_offset(adev, 0, mmSDMA0_CNTL) :
1439                         sdma_v5_0_get_reg_offset(adev, 1, mmSDMA0_CNTL);
1440
1441                 sdma_cntl = RREG32(reg_offset);
1442                 sdma_cntl = REG_SET_FIELD(sdma_cntl, SDMA0_CNTL, TRAP_ENABLE,
1443                                           state == AMDGPU_IRQ_STATE_ENABLE ? 1 : 0);
1444                 WREG32(reg_offset, sdma_cntl);
1445         }
1446
1447         return 0;
1448 }
1449
1450 static int sdma_v5_0_process_trap_irq(struct amdgpu_device *adev,
1451                                       struct amdgpu_irq_src *source,
1452                                       struct amdgpu_iv_entry *entry)
1453 {
1454         DRM_DEBUG("IH: SDMA trap\n");
1455         switch (entry->client_id) {
1456         case SOC15_IH_CLIENTID_SDMA0:
1457                 switch (entry->ring_id) {
1458                 case 0:
1459                         amdgpu_fence_process(&adev->sdma.instance[0].ring);
1460                         break;
1461                 case 1:
1462                         /* XXX compute */
1463                         break;
1464                 case 2:
1465                         /* XXX compute */
1466                         break;
1467                 case 3:
1468                         /* XXX page queue*/
1469                         break;
1470                 }
1471                 break;
1472         case SOC15_IH_CLIENTID_SDMA1:
1473                 switch (entry->ring_id) {
1474                 case 0:
1475                         amdgpu_fence_process(&adev->sdma.instance[1].ring);
1476                         break;
1477                 case 1:
1478                         /* XXX compute */
1479                         break;
1480                 case 2:
1481                         /* XXX compute */
1482                         break;
1483                 case 3:
1484                         /* XXX page queue*/
1485                         break;
1486                 }
1487                 break;
1488         }
1489         return 0;
1490 }
1491
1492 static int sdma_v5_0_process_illegal_inst_irq(struct amdgpu_device *adev,
1493                                               struct amdgpu_irq_src *source,
1494                                               struct amdgpu_iv_entry *entry)
1495 {
1496         return 0;
1497 }
1498
1499 static void sdma_v5_0_update_medium_grain_clock_gating(struct amdgpu_device *adev,
1500                                                        bool enable)
1501 {
1502         uint32_t data, def;
1503         int i;
1504
1505         for (i = 0; i < adev->sdma.num_instances; i++) {
1506                 if (enable && (adev->cg_flags & AMD_CG_SUPPORT_SDMA_MGCG)) {
1507                         /* Enable sdma clock gating */
1508                         def = data = RREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_CLK_CTRL));
1509                         data &= ~(SDMA0_CLK_CTRL__SOFT_OVERRIDE7_MASK |
1510                                   SDMA0_CLK_CTRL__SOFT_OVERRIDE6_MASK |
1511                                   SDMA0_CLK_CTRL__SOFT_OVERRIDE5_MASK |
1512                                   SDMA0_CLK_CTRL__SOFT_OVERRIDE4_MASK |
1513                                   SDMA0_CLK_CTRL__SOFT_OVERRIDE3_MASK |
1514                                   SDMA0_CLK_CTRL__SOFT_OVERRIDE2_MASK |
1515                                   SDMA0_CLK_CTRL__SOFT_OVERRIDE1_MASK |
1516                                   SDMA0_CLK_CTRL__SOFT_OVERRIDE0_MASK);
1517                         if (def != data)
1518                                 WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_CLK_CTRL), data);
1519                 } else {
1520                         /* Disable sdma clock gating */
1521                         def = data = RREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_CLK_CTRL));
1522                         data |= (SDMA0_CLK_CTRL__SOFT_OVERRIDE7_MASK |
1523                                  SDMA0_CLK_CTRL__SOFT_OVERRIDE6_MASK |
1524                                  SDMA0_CLK_CTRL__SOFT_OVERRIDE5_MASK |
1525                                  SDMA0_CLK_CTRL__SOFT_OVERRIDE4_MASK |
1526                                  SDMA0_CLK_CTRL__SOFT_OVERRIDE3_MASK |
1527                                  SDMA0_CLK_CTRL__SOFT_OVERRIDE2_MASK |
1528                                  SDMA0_CLK_CTRL__SOFT_OVERRIDE1_MASK |
1529                                  SDMA0_CLK_CTRL__SOFT_OVERRIDE0_MASK);
1530                         if (def != data)
1531                                 WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_CLK_CTRL), data);
1532                 }
1533         }
1534 }
1535
1536 static void sdma_v5_0_update_medium_grain_light_sleep(struct amdgpu_device *adev,
1537                                                       bool enable)
1538 {
1539         uint32_t data, def;
1540         int i;
1541
1542         for (i = 0; i < adev->sdma.num_instances; i++) {
1543                 if (enable && (adev->cg_flags & AMD_CG_SUPPORT_SDMA_LS)) {
1544                         /* Enable sdma mem light sleep */
1545                         def = data = RREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_POWER_CNTL));
1546                         data |= SDMA0_POWER_CNTL__MEM_POWER_OVERRIDE_MASK;
1547                         if (def != data)
1548                                 WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_POWER_CNTL), data);
1549
1550                 } else {
1551                         /* Disable sdma mem light sleep */
1552                         def = data = RREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_POWER_CNTL));
1553                         data &= ~SDMA0_POWER_CNTL__MEM_POWER_OVERRIDE_MASK;
1554                         if (def != data)
1555                                 WREG32(sdma_v5_0_get_reg_offset(adev, i, mmSDMA0_POWER_CNTL), data);
1556
1557                 }
1558         }
1559 }
1560
1561 static int sdma_v5_0_set_clockgating_state(void *handle,
1562                                            enum amd_clockgating_state state)
1563 {
1564         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1565
1566         if (amdgpu_sriov_vf(adev))
1567                 return 0;
1568
1569         switch (adev->asic_type) {
1570         case CHIP_NAVI10:
1571         case CHIP_NAVI14:
1572         case CHIP_NAVI12:
1573                 sdma_v5_0_update_medium_grain_clock_gating(adev,
1574                                 state == AMD_CG_STATE_GATE);
1575                 sdma_v5_0_update_medium_grain_light_sleep(adev,
1576                                 state == AMD_CG_STATE_GATE);
1577                 break;
1578         default:
1579                 break;
1580         }
1581
1582         return 0;
1583 }
1584
1585 static int sdma_v5_0_set_powergating_state(void *handle,
1586                                           enum amd_powergating_state state)
1587 {
1588         return 0;
1589 }
1590
1591 static void sdma_v5_0_get_clockgating_state(void *handle, u32 *flags)
1592 {
1593         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1594         int data;
1595
1596         if (amdgpu_sriov_vf(adev))
1597                 *flags = 0;
1598
1599         /* AMD_CG_SUPPORT_SDMA_MGCG */
1600         data = RREG32(sdma_v5_0_get_reg_offset(adev, 0, mmSDMA0_CLK_CTRL));
1601         if (!(data & SDMA0_CLK_CTRL__SOFT_OVERRIDE7_MASK))
1602                 *flags |= AMD_CG_SUPPORT_SDMA_MGCG;
1603
1604         /* AMD_CG_SUPPORT_SDMA_LS */
1605         data = RREG32(sdma_v5_0_get_reg_offset(adev, 0, mmSDMA0_POWER_CNTL));
1606         if (data & SDMA0_POWER_CNTL__MEM_POWER_OVERRIDE_MASK)
1607                 *flags |= AMD_CG_SUPPORT_SDMA_LS;
1608 }
1609
1610 const struct amd_ip_funcs sdma_v5_0_ip_funcs = {
1611         .name = "sdma_v5_0",
1612         .early_init = sdma_v5_0_early_init,
1613         .late_init = NULL,
1614         .sw_init = sdma_v5_0_sw_init,
1615         .sw_fini = sdma_v5_0_sw_fini,
1616         .hw_init = sdma_v5_0_hw_init,
1617         .hw_fini = sdma_v5_0_hw_fini,
1618         .suspend = sdma_v5_0_suspend,
1619         .resume = sdma_v5_0_resume,
1620         .is_idle = sdma_v5_0_is_idle,
1621         .wait_for_idle = sdma_v5_0_wait_for_idle,
1622         .soft_reset = sdma_v5_0_soft_reset,
1623         .set_clockgating_state = sdma_v5_0_set_clockgating_state,
1624         .set_powergating_state = sdma_v5_0_set_powergating_state,
1625         .get_clockgating_state = sdma_v5_0_get_clockgating_state,
1626 };
1627
1628 static const struct amdgpu_ring_funcs sdma_v5_0_ring_funcs = {
1629         .type = AMDGPU_RING_TYPE_SDMA,
1630         .align_mask = 0xf,
1631         .nop = SDMA_PKT_NOP_HEADER_OP(SDMA_OP_NOP),
1632         .support_64bit_ptrs = true,
1633         .vmhub = AMDGPU_GFXHUB_0,
1634         .get_rptr = sdma_v5_0_ring_get_rptr,
1635         .get_wptr = sdma_v5_0_ring_get_wptr,
1636         .set_wptr = sdma_v5_0_ring_set_wptr,
1637         .emit_frame_size =
1638                 5 + /* sdma_v5_0_ring_init_cond_exec */
1639                 6 + /* sdma_v5_0_ring_emit_hdp_flush */
1640                 3 + /* hdp_invalidate */
1641                 6 + /* sdma_v5_0_ring_emit_pipeline_sync */
1642                 /* sdma_v5_0_ring_emit_vm_flush */
1643                 SOC15_FLUSH_GPU_TLB_NUM_WREG * 3 +
1644                 SOC15_FLUSH_GPU_TLB_NUM_REG_WAIT * 6 * 2 +
1645                 10 + 10 + 10, /* sdma_v5_0_ring_emit_fence x3 for user fence, vm fence */
1646         .emit_ib_size = 5 + 7 + 6, /* sdma_v5_0_ring_emit_ib */
1647         .emit_ib = sdma_v5_0_ring_emit_ib,
1648         .emit_fence = sdma_v5_0_ring_emit_fence,
1649         .emit_pipeline_sync = sdma_v5_0_ring_emit_pipeline_sync,
1650         .emit_vm_flush = sdma_v5_0_ring_emit_vm_flush,
1651         .emit_hdp_flush = sdma_v5_0_ring_emit_hdp_flush,
1652         .test_ring = sdma_v5_0_ring_test_ring,
1653         .test_ib = sdma_v5_0_ring_test_ib,
1654         .insert_nop = sdma_v5_0_ring_insert_nop,
1655         .pad_ib = sdma_v5_0_ring_pad_ib,
1656         .emit_wreg = sdma_v5_0_ring_emit_wreg,
1657         .emit_reg_wait = sdma_v5_0_ring_emit_reg_wait,
1658         .emit_reg_write_reg_wait = sdma_v5_0_ring_emit_reg_write_reg_wait,
1659         .init_cond_exec = sdma_v5_0_ring_init_cond_exec,
1660         .patch_cond_exec = sdma_v5_0_ring_patch_cond_exec,
1661         .preempt_ib = sdma_v5_0_ring_preempt_ib,
1662 };
1663
1664 static void sdma_v5_0_set_ring_funcs(struct amdgpu_device *adev)
1665 {
1666         int i;
1667
1668         for (i = 0; i < adev->sdma.num_instances; i++) {
1669                 adev->sdma.instance[i].ring.funcs = &sdma_v5_0_ring_funcs;
1670                 adev->sdma.instance[i].ring.me = i;
1671         }
1672 }
1673
1674 static const struct amdgpu_irq_src_funcs sdma_v5_0_trap_irq_funcs = {
1675         .set = sdma_v5_0_set_trap_irq_state,
1676         .process = sdma_v5_0_process_trap_irq,
1677 };
1678
1679 static const struct amdgpu_irq_src_funcs sdma_v5_0_illegal_inst_irq_funcs = {
1680         .process = sdma_v5_0_process_illegal_inst_irq,
1681 };
1682
1683 static void sdma_v5_0_set_irq_funcs(struct amdgpu_device *adev)
1684 {
1685         adev->sdma.trap_irq.num_types = AMDGPU_SDMA_IRQ_INSTANCE0 +
1686                                         adev->sdma.num_instances;
1687         adev->sdma.trap_irq.funcs = &sdma_v5_0_trap_irq_funcs;
1688         adev->sdma.illegal_inst_irq.funcs = &sdma_v5_0_illegal_inst_irq_funcs;
1689 }
1690
1691 /**
1692  * sdma_v5_0_emit_copy_buffer - copy buffer using the sDMA engine
1693  *
1694  * @ib: indirect buffer to copy to
1695  * @src_offset: src GPU address
1696  * @dst_offset: dst GPU address
1697  * @byte_count: number of bytes to xfer
1698  * @tmz: if a secure copy should be used
1699  *
1700  * Copy GPU buffers using the DMA engine (NAVI10).
1701  * Used by the amdgpu ttm implementation to move pages if
1702  * registered as the asic copy callback.
1703  */
1704 static void sdma_v5_0_emit_copy_buffer(struct amdgpu_ib *ib,
1705                                        uint64_t src_offset,
1706                                        uint64_t dst_offset,
1707                                        uint32_t byte_count,
1708                                        bool tmz)
1709 {
1710         ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_COPY) |
1711                 SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_COPY_LINEAR) |
1712                 SDMA_PKT_COPY_LINEAR_HEADER_TMZ(tmz ? 1 : 0);
1713         ib->ptr[ib->length_dw++] = byte_count - 1;
1714         ib->ptr[ib->length_dw++] = 0; /* src/dst endian swap */
1715         ib->ptr[ib->length_dw++] = lower_32_bits(src_offset);
1716         ib->ptr[ib->length_dw++] = upper_32_bits(src_offset);
1717         ib->ptr[ib->length_dw++] = lower_32_bits(dst_offset);
1718         ib->ptr[ib->length_dw++] = upper_32_bits(dst_offset);
1719 }
1720
1721 /**
1722  * sdma_v5_0_emit_fill_buffer - fill buffer using the sDMA engine
1723  *
1724  * @ib: indirect buffer to fill
1725  * @src_data: value to write to buffer
1726  * @dst_offset: dst GPU address
1727  * @byte_count: number of bytes to xfer
1728  *
1729  * Fill GPU buffers using the DMA engine (NAVI10).
1730  */
1731 static void sdma_v5_0_emit_fill_buffer(struct amdgpu_ib *ib,
1732                                        uint32_t src_data,
1733                                        uint64_t dst_offset,
1734                                        uint32_t byte_count)
1735 {
1736         ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_CONST_FILL);
1737         ib->ptr[ib->length_dw++] = lower_32_bits(dst_offset);
1738         ib->ptr[ib->length_dw++] = upper_32_bits(dst_offset);
1739         ib->ptr[ib->length_dw++] = src_data;
1740         ib->ptr[ib->length_dw++] = byte_count - 1;
1741 }
1742
1743 static const struct amdgpu_buffer_funcs sdma_v5_0_buffer_funcs = {
1744         .copy_max_bytes = 0x400000,
1745         .copy_num_dw = 7,
1746         .emit_copy_buffer = sdma_v5_0_emit_copy_buffer,
1747
1748         .fill_max_bytes = 0x400000,
1749         .fill_num_dw = 5,
1750         .emit_fill_buffer = sdma_v5_0_emit_fill_buffer,
1751 };
1752
1753 static void sdma_v5_0_set_buffer_funcs(struct amdgpu_device *adev)
1754 {
1755         if (adev->mman.buffer_funcs == NULL) {
1756                 adev->mman.buffer_funcs = &sdma_v5_0_buffer_funcs;
1757                 adev->mman.buffer_funcs_ring = &adev->sdma.instance[0].ring;
1758         }
1759 }
1760
1761 static const struct amdgpu_vm_pte_funcs sdma_v5_0_vm_pte_funcs = {
1762         .copy_pte_num_dw = 7,
1763         .copy_pte = sdma_v5_0_vm_copy_pte,
1764         .write_pte = sdma_v5_0_vm_write_pte,
1765         .set_pte_pde = sdma_v5_0_vm_set_pte_pde,
1766 };
1767
1768 static void sdma_v5_0_set_vm_pte_funcs(struct amdgpu_device *adev)
1769 {
1770         unsigned i;
1771
1772         if (adev->vm_manager.vm_pte_funcs == NULL) {
1773                 adev->vm_manager.vm_pte_funcs = &sdma_v5_0_vm_pte_funcs;
1774                 for (i = 0; i < adev->sdma.num_instances; i++) {
1775                         adev->vm_manager.vm_pte_scheds[i] =
1776                                 &adev->sdma.instance[i].ring.sched;
1777                 }
1778                 adev->vm_manager.vm_pte_num_scheds = adev->sdma.num_instances;
1779         }
1780 }
1781
1782 const struct amdgpu_ip_block_version sdma_v5_0_ip_block = {
1783         .type = AMD_IP_BLOCK_TYPE_SDMA,
1784         .major = 5,
1785         .minor = 0,
1786         .rev = 0,
1787         .funcs = &sdma_v5_0_ip_funcs,
1788 };