drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c

   1 /*
   2  * Copyright 2014 Advanced Micro Devices, Inc.
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice shall be included in
  12  * all copies or substantial portions of the Software.
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  20  * OTHER DEALINGS IN THE SOFTWARE.
  21  *
  22  */
  23 #include <linux/firmware.h>
  24 #include <drm/drmP.h>
  25 #include "amdgpu.h"
  26 #include "gmc_v8_0.h"
  27 #include "amdgpu_ucode.h"
  28
  29 #include "gmc/gmc_8_1_d.h"
  30 #include "gmc/gmc_8_1_sh_mask.h"
  31
  32 #include "bif/bif_5_0_d.h"
  33 #include "bif/bif_5_0_sh_mask.h"
  34
  35 #include "oss/oss_3_0_d.h"
  36 #include "oss/oss_3_0_sh_mask.h"
  37
  38 #include "dce/dce_10_0_d.h"
  39 #include "dce/dce_10_0_sh_mask.h"
  40
  41 #include "vid.h"
  42 #include "vi.h"
  43
  44 #include "amdgpu_atombios.h"
  45
  46
  47 static void gmc_v8_0_set_gart_funcs(struct amdgpu_device *adev);
  48 static void gmc_v8_0_set_irq_funcs(struct amdgpu_device *adev);
  49 static int gmc_v8_0_wait_for_idle(void *handle);
  50
  51 MODULE_FIRMWARE("amdgpu/tonga_mc.bin");
  52 MODULE_FIRMWARE("amdgpu/polaris11_mc.bin");
  53 MODULE_FIRMWARE("amdgpu/polaris10_mc.bin");
  54 MODULE_FIRMWARE("amdgpu/polaris12_mc.bin");
  55
  56 static const u32 golden_settings_tonga_a11[] =
  57 {
  58         mmMC_ARB_WTM_GRPWT_RD, 0x00000003, 0x00000000,
  59         mmMC_HUB_RDREQ_DMIF_LIMIT, 0x0000007f, 0x00000028,
  60         mmMC_HUB_WDP_UMC, 0x00007fb6, 0x00000991,
  61         mmVM_PRT_APERTURE0_LOW_ADDR, 0x0fffffff, 0x0fffffff,
  62         mmVM_PRT_APERTURE1_LOW_ADDR, 0x0fffffff, 0x0fffffff,
  63         mmVM_PRT_APERTURE2_LOW_ADDR, 0x0fffffff, 0x0fffffff,
  64         mmVM_PRT_APERTURE3_LOW_ADDR, 0x0fffffff, 0x0fffffff,
  65 };
  66
  67 static const u32 tonga_mgcg_cgcg_init[] =
  68 {
  69         mmMC_MEM_POWER_LS, 0xffffffff, 0x00000104
  70 };
  71
  72 static const u32 golden_settings_fiji_a10[] =
  73 {
  74         mmVM_PRT_APERTURE0_LOW_ADDR, 0x0fffffff, 0x0fffffff,
  75         mmVM_PRT_APERTURE1_LOW_ADDR, 0x0fffffff, 0x0fffffff,
  76         mmVM_PRT_APERTURE2_LOW_ADDR, 0x0fffffff, 0x0fffffff,
  77         mmVM_PRT_APERTURE3_LOW_ADDR, 0x0fffffff, 0x0fffffff,
  78 };
  79
  80 static const u32 fiji_mgcg_cgcg_init[] =
  81 {
  82         mmMC_MEM_POWER_LS, 0xffffffff, 0x00000104
  83 };
  84
  85 static const u32 golden_settings_polaris11_a11[] =
  86 {
  87         mmVM_PRT_APERTURE0_LOW_ADDR, 0x0fffffff, 0x0fffffff,
  88         mmVM_PRT_APERTURE1_LOW_ADDR, 0x0fffffff, 0x0fffffff,
  89         mmVM_PRT_APERTURE2_LOW_ADDR, 0x0fffffff, 0x0fffffff,
  90         mmVM_PRT_APERTURE3_LOW_ADDR, 0x0fffffff, 0x0fffffff
  91 };
  92
  93 static const u32 golden_settings_polaris10_a11[] =
  94 {
  95         mmMC_ARB_WTM_GRPWT_RD, 0x00000003, 0x00000000,
  96         mmVM_PRT_APERTURE0_LOW_ADDR, 0x0fffffff, 0x0fffffff,
  97         mmVM_PRT_APERTURE1_LOW_ADDR, 0x0fffffff, 0x0fffffff,
  98         mmVM_PRT_APERTURE2_LOW_ADDR, 0x0fffffff, 0x0fffffff,
  99         mmVM_PRT_APERTURE3_LOW_ADDR, 0x0fffffff, 0x0fffffff
 100 };
 101
 102 static const u32 cz_mgcg_cgcg_init[] =
 103 {
 104         mmMC_MEM_POWER_LS, 0xffffffff, 0x00000104
 105 };
 106
 107 static const u32 stoney_mgcg_cgcg_init[] =
 108 {
 109         mmATC_MISC_CG, 0xffffffff, 0x000c0200,
 110         mmMC_MEM_POWER_LS, 0xffffffff, 0x00000104
 111 };
 112
 113 static const u32 golden_settings_stoney_common[] =
 114 {
 115         mmMC_HUB_RDREQ_UVD, MC_HUB_RDREQ_UVD__PRESCALE_MASK, 0x00000004,
 116         mmMC_RD_GRP_OTH, MC_RD_GRP_OTH__UVD_MASK, 0x00600000
 117 };
 118
 119 static void gmc_v8_0_init_golden_registers(struct amdgpu_device *adev)
 120 {
 121         switch (adev->asic_type) {
 122         case CHIP_FIJI:
 123                 amdgpu_program_register_sequence(adev,
 124                                                  fiji_mgcg_cgcg_init,
 125                                                  (const u32)ARRAY_SIZE(fiji_mgcg_cgcg_init));
 126                 amdgpu_program_register_sequence(adev,
 127                                                  golden_settings_fiji_a10,
 128                                                  (const u32)ARRAY_SIZE(golden_settings_fiji_a10));
 129                 break;
 130         case CHIP_TONGA:
 131                 amdgpu_program_register_sequence(adev,
 132                                                  tonga_mgcg_cgcg_init,
 133                                                  (const u32)ARRAY_SIZE(tonga_mgcg_cgcg_init));
 134                 amdgpu_program_register_sequence(adev,
 135                                                  golden_settings_tonga_a11,
 136                                                  (const u32)ARRAY_SIZE(golden_settings_tonga_a11));
 137                 break;
 138         case CHIP_POLARIS11:
 139         case CHIP_POLARIS12:
 140                 amdgpu_program_register_sequence(adev,
 141                                                  golden_settings_polaris11_a11,
 142                                                  (const u32)ARRAY_SIZE(golden_settings_polaris11_a11));
 143                 break;
 144         case CHIP_POLARIS10:
 145                 amdgpu_program_register_sequence(adev,
 146                                                  golden_settings_polaris10_a11,
 147                                                  (const u32)ARRAY_SIZE(golden_settings_polaris10_a11));
 148                 break;
 149         case CHIP_CARRIZO:
 150                 amdgpu_program_register_sequence(adev,
 151                                                  cz_mgcg_cgcg_init,
 152                                                  (const u32)ARRAY_SIZE(cz_mgcg_cgcg_init));
 153                 break;
 154         case CHIP_STONEY:
 155                 amdgpu_program_register_sequence(adev,
 156                                                  stoney_mgcg_cgcg_init,
 157                                                  (const u32)ARRAY_SIZE(stoney_mgcg_cgcg_init));
 158                 amdgpu_program_register_sequence(adev,
 159                                                  golden_settings_stoney_common,
 160                                                  (const u32)ARRAY_SIZE(golden_settings_stoney_common));
 161                 break;
 162         default:
 163                 break;
 164         }
 165 }
 166
 167 static void gmc_v8_0_mc_stop(struct amdgpu_device *adev)
 168 {
 169         u32 blackout;
 170
 171         gmc_v8_0_wait_for_idle(adev);
 172
 173         blackout = RREG32(mmMC_SHARED_BLACKOUT_CNTL);
 174         if (REG_GET_FIELD(blackout, MC_SHARED_BLACKOUT_CNTL, BLACKOUT_MODE) != 1) {
 175                 /* Block CPU access */
 176                 WREG32(mmBIF_FB_EN, 0);
 177                 /* blackout the MC */
 178                 blackout = REG_SET_FIELD(blackout,
 179                                          MC_SHARED_BLACKOUT_CNTL, BLACKOUT_MODE, 1);
 180                 WREG32(mmMC_SHARED_BLACKOUT_CNTL, blackout);
 181         }
 182         /* wait for the MC to settle */
 183         udelay(100);
 184 }
 185
 186 static void gmc_v8_0_mc_resume(struct amdgpu_device *adev)
 187 {
 188         u32 tmp;
 189
 190         /* unblackout the MC */
 191         tmp = RREG32(mmMC_SHARED_BLACKOUT_CNTL);
 192         tmp = REG_SET_FIELD(tmp, MC_SHARED_BLACKOUT_CNTL, BLACKOUT_MODE, 0);
 193         WREG32(mmMC_SHARED_BLACKOUT_CNTL, tmp);
 194         /* allow CPU access */
 195         tmp = REG_SET_FIELD(0, BIF_FB_EN, FB_READ_EN, 1);
 196         tmp = REG_SET_FIELD(tmp, BIF_FB_EN, FB_WRITE_EN, 1);
 197         WREG32(mmBIF_FB_EN, tmp);
 198 }
 199
 200 /**
 201  * gmc_v8_0_init_microcode - load ucode images from disk
 202  *
 203  * @adev: amdgpu_device pointer
 204  *
 205  * Use the firmware interface to load the ucode images into
 206  * the driver (not loaded into hw).
 207  * Returns 0 on success, error on failure.
 208  */
 209 static int gmc_v8_0_init_microcode(struct amdgpu_device *adev)
 210 {
 211         const char *chip_name;
 212         char fw_name[30];
 213         int err;
 214
 215         DRM_DEBUG("\n");
 216
 217         switch (adev->asic_type) {
 218         case CHIP_TONGA:
 219                 chip_name = "tonga";
 220                 break;
 221         case CHIP_POLARIS11:
 222                 chip_name = "polaris11";
 223                 break;
 224         case CHIP_POLARIS10:
 225                 chip_name = "polaris10";
 226                 break;
 227         case CHIP_POLARIS12:
 228                 chip_name = "polaris12";
 229                 break;
 230         case CHIP_FIJI:
 231         case CHIP_CARRIZO:
 232         case CHIP_STONEY:
 233                 return 0;
 234         default: BUG();
 235         }
 236
 237         snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_mc.bin", chip_name);
 238         err = request_firmware(&adev->mc.fw, fw_name, adev->dev);
 239         if (err)
 240                 goto out;
 241         err = amdgpu_ucode_validate(adev->mc.fw);
 242
 243 out:
 244         if (err) {
 245                 pr_err("mc: Failed to load firmware \"%s\"\n", fw_name);
 246                 release_firmware(adev->mc.fw);
 247                 adev->mc.fw = NULL;
 248         }
 249         return err;
 250 }
 251
 252 /**
 253  * gmc_v8_0_tonga_mc_load_microcode - load tonga MC ucode into the hw
 254  *
 255  * @adev: amdgpu_device pointer
 256  *
 257  * Load the GDDR MC ucode into the hw (CIK).
 258  * Returns 0 on success, error on failure.
 259  */
 260 static int gmc_v8_0_tonga_mc_load_microcode(struct amdgpu_device *adev)
 261 {
 262         const struct mc_firmware_header_v1_0 *hdr;
 263         const __le32 *fw_data = NULL;
 264         const __le32 *io_mc_regs = NULL;
 265         u32 running;
 266         int i, ucode_size, regs_size;
 267
 268         /* Skip MC ucode loading on SR-IOV capable boards.
 269          * vbios does this for us in asic_init in that case.
 270          * Skip MC ucode loading on VF, because hypervisor will do that
 271          * for this adaptor.
 272          */
 273         if (amdgpu_sriov_bios(adev))
 274                 return 0;
 275
 276         if (!adev->mc.fw)
 277                 return -EINVAL;
 278
 279         hdr = (const struct mc_firmware_header_v1_0 *)adev->mc.fw->data;
 280         amdgpu_ucode_print_mc_hdr(&hdr->header);
 281
 282         adev->mc.fw_version = le32_to_cpu(hdr->header.ucode_version);
 283         regs_size = le32_to_cpu(hdr->io_debug_size_bytes) / (4 * 2);
 284         io_mc_regs = (const __le32 *)
 285                 (adev->mc.fw->data + le32_to_cpu(hdr->io_debug_array_offset_bytes));
 286         ucode_size = le32_to_cpu(hdr->header.ucode_size_bytes) / 4;
 287         fw_data = (const __le32 *)
 288                 (adev->mc.fw->data + le32_to_cpu(hdr->header.ucode_array_offset_bytes));
 289
 290         running = REG_GET_FIELD(RREG32(mmMC_SEQ_SUP_CNTL), MC_SEQ_SUP_CNTL, RUN);
 291
 292         if (running == 0) {
 293                 /* reset the engine and set to writable */
 294                 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000008);
 295                 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000010);
 296
 297                 /* load mc io regs */
 298                 for (i = 0; i < regs_size; i++) {
 299                         WREG32(mmMC_SEQ_IO_DEBUG_INDEX, le32_to_cpup(io_mc_regs++));
 300                         WREG32(mmMC_SEQ_IO_DEBUG_DATA, le32_to_cpup(io_mc_regs++));
 301                 }
 302                 /* load the MC ucode */
 303                 for (i = 0; i < ucode_size; i++)
 304                         WREG32(mmMC_SEQ_SUP_PGM, le32_to_cpup(fw_data++));
 305
 306                 /* put the engine back into the active state */
 307                 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000008);
 308                 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000004);
 309                 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000001);
 310
 311                 /* wait for training to complete */
 312                 for (i = 0; i < adev->usec_timeout; i++) {
 313                         if (REG_GET_FIELD(RREG32(mmMC_SEQ_TRAIN_WAKEUP_CNTL),
 314                                           MC_SEQ_TRAIN_WAKEUP_CNTL, TRAIN_DONE_D0))
 315                                 break;
 316                         udelay(1);
 317                 }
 318                 for (i = 0; i < adev->usec_timeout; i++) {
 319                         if (REG_GET_FIELD(RREG32(mmMC_SEQ_TRAIN_WAKEUP_CNTL),
 320                                           MC_SEQ_TRAIN_WAKEUP_CNTL, TRAIN_DONE_D1))
 321                                 break;
 322                         udelay(1);
 323                 }
 324         }
 325
 326         return 0;
 327 }
 328
 329 static int gmc_v8_0_polaris_mc_load_microcode(struct amdgpu_device *adev)
 330 {
 331         const struct mc_firmware_header_v1_0 *hdr;
 332         const __le32 *fw_data = NULL;
 333         const __le32 *io_mc_regs = NULL;
 334         u32 data, vbios_version;
 335         int i, ucode_size, regs_size;
 336
 337         /* Skip MC ucode loading on SR-IOV capable boards.
 338          * vbios does this for us in asic_init in that case.
 339          * Skip MC ucode loading on VF, because hypervisor will do that
 340          * for this adaptor.
 341          */
 342         if (amdgpu_sriov_bios(adev))
 343                 return 0;
 344
 345         WREG32(mmMC_SEQ_IO_DEBUG_INDEX, 0x9F);
 346         data = RREG32(mmMC_SEQ_IO_DEBUG_DATA);
 347         vbios_version = data & 0xf;
 348
 349         if (vbios_version == 0)
 350                 return 0;
 351
 352         if (!adev->mc.fw)
 353                 return -EINVAL;
 354
 355         hdr = (const struct mc_firmware_header_v1_0 *)adev->mc.fw->data;
 356         amdgpu_ucode_print_mc_hdr(&hdr->header);
 357
 358         adev->mc.fw_version = le32_to_cpu(hdr->header.ucode_version);
 359         regs_size = le32_to_cpu(hdr->io_debug_size_bytes) / (4 * 2);
 360         io_mc_regs = (const __le32 *)
 361                 (adev->mc.fw->data + le32_to_cpu(hdr->io_debug_array_offset_bytes));
 362         ucode_size = le32_to_cpu(hdr->header.ucode_size_bytes) / 4;
 363         fw_data = (const __le32 *)
 364                 (adev->mc.fw->data + le32_to_cpu(hdr->header.ucode_array_offset_bytes));
 365
 366         data = RREG32(mmMC_SEQ_MISC0);
 367         data &= ~(0x40);
 368         WREG32(mmMC_SEQ_MISC0, data);
 369
 370         /* load mc io regs */
 371         for (i = 0; i < regs_size; i++) {
 372                 WREG32(mmMC_SEQ_IO_DEBUG_INDEX, le32_to_cpup(io_mc_regs++));
 373                 WREG32(mmMC_SEQ_IO_DEBUG_DATA, le32_to_cpup(io_mc_regs++));
 374         }
 375
 376         WREG32(mmMC_SEQ_SUP_CNTL, 0x00000008);
 377         WREG32(mmMC_SEQ_SUP_CNTL, 0x00000010);
 378
 379         /* load the MC ucode */
 380         for (i = 0; i < ucode_size; i++)
 381                 WREG32(mmMC_SEQ_SUP_PGM, le32_to_cpup(fw_data++));
 382
 383         /* put the engine back into the active state */
 384         WREG32(mmMC_SEQ_SUP_CNTL, 0x00000008);
 385         WREG32(mmMC_SEQ_SUP_CNTL, 0x00000004);
 386         WREG32(mmMC_SEQ_SUP_CNTL, 0x00000001);
 387
 388         /* wait for training to complete */
 389         for (i = 0; i < adev->usec_timeout; i++) {
 390                 data = RREG32(mmMC_SEQ_MISC0);
 391                 if (data & 0x80)
 392                         break;
 393                 udelay(1);
 394         }
 395
 396         return 0;
 397 }
 398
 399 static void gmc_v8_0_vram_gtt_location(struct amdgpu_device *adev,
 400                                        struct amdgpu_mc *mc)
 401 {
 402         u64 base = 0;
 403
 404         if (!amdgpu_sriov_vf(adev))
 405                 base = RREG32(mmMC_VM_FB_LOCATION) & 0xFFFF;
 406         base <<= 24;
 407
 408         if (mc->mc_vram_size > 0xFFC0000000ULL) {
 409                 /* leave room for at least 1024M GTT */
 410                 dev_warn(adev->dev, "limiting VRAM\n");
 411                 mc->real_vram_size = 0xFFC0000000ULL;
 412                 mc->mc_vram_size = 0xFFC0000000ULL;
 413         }
 414         amdgpu_vram_location(adev, &adev->mc, base);
 415         amdgpu_gart_location(adev, mc);
 416 }
 417
 418 /**
 419  * gmc_v8_0_mc_program - program the GPU memory controller
 420  *
 421  * @adev: amdgpu_device pointer
 422  *
 423  * Set the location of vram, gart, and AGP in the GPU's
 424  * physical address space (CIK).
 425  */
 426 static void gmc_v8_0_mc_program(struct amdgpu_device *adev)
 427 {
 428         u32 tmp;
 429         int i, j;
 430
 431         /* Initialize HDP */
 432         for (i = 0, j = 0; i < 32; i++, j += 0x6) {
 433                 WREG32((0xb05 + j), 0x00000000);
 434                 WREG32((0xb06 + j), 0x00000000);
 435                 WREG32((0xb07 + j), 0x00000000);
 436                 WREG32((0xb08 + j), 0x00000000);
 437                 WREG32((0xb09 + j), 0x00000000);
 438         }
 439         WREG32(mmHDP_REG_COHERENCY_FLUSH_CNTL, 0);
 440
 441         if (gmc_v8_0_wait_for_idle((void *)adev)) {
 442                 dev_warn(adev->dev, "Wait for MC idle timedout !\n");
 443         }
 444         if (adev->mode_info.num_crtc) {
 445                 /* Lockout access through VGA aperture*/
 446                 tmp = RREG32(mmVGA_HDP_CONTROL);
 447                 tmp = REG_SET_FIELD(tmp, VGA_HDP_CONTROL, VGA_MEMORY_DISABLE, 1);
 448                 WREG32(mmVGA_HDP_CONTROL, tmp);
 449
 450                 /* disable VGA render */
 451                 tmp = RREG32(mmVGA_RENDER_CONTROL);
 452                 tmp = REG_SET_FIELD(tmp, VGA_RENDER_CONTROL, VGA_VSTATUS_CNTL, 0);
 453                 WREG32(mmVGA_RENDER_CONTROL, tmp);
 454         }
 455         /* Update configuration */
 456         WREG32(mmMC_VM_SYSTEM_APERTURE_LOW_ADDR,
 457                adev->mc.vram_start >> 12);
 458         WREG32(mmMC_VM_SYSTEM_APERTURE_HIGH_ADDR,
 459                adev->mc.vram_end >> 12);
 460         WREG32(mmMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR,
 461                adev->vram_scratch.gpu_addr >> 12);
 462
 463         if (amdgpu_sriov_vf(adev)) {
 464                 tmp = ((adev->mc.vram_end >> 24) & 0xFFFF) << 16;
 465                 tmp |= ((adev->mc.vram_start >> 24) & 0xFFFF);
 466                 WREG32(mmMC_VM_FB_LOCATION, tmp);
 467                 /* XXX double check these! */
 468                 WREG32(mmHDP_NONSURFACE_BASE, (adev->mc.vram_start >> 8));
 469                 WREG32(mmHDP_NONSURFACE_INFO, (2 << 7) | (1 << 30));
 470                 WREG32(mmHDP_NONSURFACE_SIZE, 0x3FFFFFFF);
 471         }
 472
 473         WREG32(mmMC_VM_AGP_BASE, 0);
 474         WREG32(mmMC_VM_AGP_TOP, 0x0FFFFFFF);
 475         WREG32(mmMC_VM_AGP_BOT, 0x0FFFFFFF);
 476         if (gmc_v8_0_wait_for_idle((void *)adev)) {
 477                 dev_warn(adev->dev, "Wait for MC idle timedout !\n");
 478         }
 479
 480         WREG32(mmBIF_FB_EN, BIF_FB_EN__FB_READ_EN_MASK | BIF_FB_EN__FB_WRITE_EN_MASK);
 481
 482         tmp = RREG32(mmHDP_MISC_CNTL);
 483         tmp = REG_SET_FIELD(tmp, HDP_MISC_CNTL, FLUSH_INVALIDATE_CACHE, 0);
 484         WREG32(mmHDP_MISC_CNTL, tmp);
 485
 486         tmp = RREG32(mmHDP_HOST_PATH_CNTL);
 487         WREG32(mmHDP_HOST_PATH_CNTL, tmp);
 488 }
 489
 490 /**
 491  * gmc_v8_0_mc_init - initialize the memory controller driver params
 492  *
 493  * @adev: amdgpu_device pointer
 494  *
 495  * Look up the amount of vram, vram width, and decide how to place
 496  * vram and gart within the GPU's physical address space (CIK).
 497  * Returns 0 for success.
 498  */
 499 static int gmc_v8_0_mc_init(struct amdgpu_device *adev)
 500 {
 501         adev->mc.vram_width = amdgpu_atombios_get_vram_width(adev);
 502         if (!adev->mc.vram_width) {
 503                 u32 tmp;
 504                 int chansize, numchan;
 505
 506                 /* Get VRAM informations */
 507                 tmp = RREG32(mmMC_ARB_RAMCFG);
 508                 if (REG_GET_FIELD(tmp, MC_ARB_RAMCFG, CHANSIZE)) {
 509                         chansize = 64;
 510                 } else {
 511                         chansize = 32;
 512                 }
 513                 tmp = RREG32(mmMC_SHARED_CHMAP);
 514                 switch (REG_GET_FIELD(tmp, MC_SHARED_CHMAP, NOOFCHAN)) {
 515                 case 0:
 516                 default:
 517                         numchan = 1;
 518                         break;
 519                 case 1:
 520                         numchan = 2;
 521                         break;
 522                 case 2:
 523                         numchan = 4;
 524                         break;
 525                 case 3:
 526                         numchan = 8;
 527                         break;
 528                 case 4:
 529                         numchan = 3;
 530                         break;
 531                 case 5:
 532                         numchan = 6;
 533                         break;
 534                 case 6:
 535                         numchan = 10;
 536                         break;
 537                 case 7:
 538                         numchan = 12;
 539                         break;
 540                 case 8:
 541                         numchan = 16;
 542                         break;
 543                 }
 544                 adev->mc.vram_width = numchan * chansize;
 545         }
 546         /* Could aper size report 0 ? */
 547         adev->mc.aper_base = pci_resource_start(adev->pdev, 0);
 548         adev->mc.aper_size = pci_resource_len(adev->pdev, 0);
 549         /* size in MB on si */
 550         adev->mc.mc_vram_size = RREG32(mmCONFIG_MEMSIZE) * 1024ULL * 1024ULL;
 551         adev->mc.real_vram_size = RREG32(mmCONFIG_MEMSIZE) * 1024ULL * 1024ULL;
 552
 553 #ifdef CONFIG_X86_64
 554         if (adev->flags & AMD_IS_APU) {
 555                 adev->mc.aper_base = ((u64)RREG32(mmMC_VM_FB_OFFSET)) << 22;
 556                 adev->mc.aper_size = adev->mc.real_vram_size;
 557         }
 558 #endif
 559
 560         /* In case the PCI BAR is larger than the actual amount of vram */
 561         adev->mc.visible_vram_size = adev->mc.aper_size;
 562         if (adev->mc.visible_vram_size > adev->mc.real_vram_size)
 563                 adev->mc.visible_vram_size = adev->mc.real_vram_size;
 564
 565         /* set the gart size */
 566         if (amdgpu_gart_size == -1) {
 567                 switch (adev->asic_type) {
 568                 case CHIP_POLARIS11: /* all engines support GPUVM */
 569                 case CHIP_POLARIS10: /* all engines support GPUVM */
 570                 case CHIP_POLARIS12: /* all engines support GPUVM */
 571                 default:
 572                         adev->mc.gart_size = 256ULL << 20;
 573                         break;
 574                 case CHIP_TONGA:   /* UVD, VCE do not support GPUVM */
 575                 case CHIP_FIJI:    /* UVD, VCE do not support GPUVM */
 576                 case CHIP_CARRIZO: /* UVD, VCE do not support GPUVM, DCE SG support */
 577                 case CHIP_STONEY:  /* UVD does not support GPUVM, DCE SG support */
 578                         adev->mc.gart_size = 1024ULL << 20;
 579                         break;
 580                 }
 581         } else {
 582                 adev->mc.gart_size = (u64)amdgpu_gart_size << 20;
 583         }
 584
 585         gmc_v8_0_vram_gtt_location(adev, &adev->mc);
 586
 587         return 0;
 588 }
 589
 590 /*
 591  * GART
 592  * VMID 0 is the physical GPU addresses as used by the kernel.
 593  * VMIDs 1-15 are used for userspace clients and are handled
 594  * by the amdgpu vm/hsa code.
 595  */
 596
 597 /**
 598  * gmc_v8_0_gart_flush_gpu_tlb - gart tlb flush callback
 599  *
 600  * @adev: amdgpu_device pointer
 601  * @vmid: vm instance to flush
 602  *
 603  * Flush the TLB for the requested page table (CIK).
 604  */
 605 static void gmc_v8_0_gart_flush_gpu_tlb(struct amdgpu_device *adev,
 606                                         uint32_t vmid)
 607 {
 608         /* flush hdp cache */
 609         WREG32(mmHDP_MEM_COHERENCY_FLUSH_CNTL, 0);
 610
 611         /* bits 0-15 are the VM contexts0-15 */
 612         WREG32(mmVM_INVALIDATE_REQUEST, 1 << vmid);
 613 }
 614
 615 /**
 616  * gmc_v8_0_gart_set_pte_pde - update the page tables using MMIO
 617  *
 618  * @adev: amdgpu_device pointer
 619  * @cpu_pt_addr: cpu address of the page table
 620  * @gpu_page_idx: entry in the page table to update
 621  * @addr: dst addr to write into pte/pde
 622  * @flags: access flags
 623  *
 624  * Update the page tables using the CPU.
 625  */
 626 static int gmc_v8_0_gart_set_pte_pde(struct amdgpu_device *adev,
 627                                      void *cpu_pt_addr,
 628                                      uint32_t gpu_page_idx,
 629                                      uint64_t addr,
 630                                      uint64_t flags)
 631 {
 632         void __iomem *ptr = (void *)cpu_pt_addr;
 633         uint64_t value;
 634
 635         /*
 636          * PTE format on VI:
 637          * 63:40 reserved
 638          * 39:12 4k physical page base address
 639          * 11:7 fragment
 640          * 6 write
 641          * 5 read
 642          * 4 exe
 643          * 3 reserved
 644          * 2 snooped
 645          * 1 system
 646          * 0 valid
 647          *
 648          * PDE format on VI:
 649          * 63:59 block fragment size
 650          * 58:40 reserved
 651          * 39:1 physical base address of PTE
 652          * bits 5:1 must be 0.
 653          * 0 valid
 654          */
 655         value = addr & 0x000000FFFFFFF000ULL;
 656         value |= flags;
 657         writeq(value, ptr + (gpu_page_idx * 8));
 658
 659         return 0;
 660 }
 661
 662 static uint64_t gmc_v8_0_get_vm_pte_flags(struct amdgpu_device *adev,
 663                                           uint32_t flags)
 664 {
 665         uint64_t pte_flag = 0;
 666
 667         if (flags & AMDGPU_VM_PAGE_EXECUTABLE)
 668                 pte_flag |= AMDGPU_PTE_EXECUTABLE;
 669         if (flags & AMDGPU_VM_PAGE_READABLE)
 670                 pte_flag |= AMDGPU_PTE_READABLE;
 671         if (flags & AMDGPU_VM_PAGE_WRITEABLE)
 672                 pte_flag |= AMDGPU_PTE_WRITEABLE;
 673         if (flags & AMDGPU_VM_PAGE_PRT)
 674                 pte_flag |= AMDGPU_PTE_PRT;
 675
 676         return pte_flag;
 677 }
 678
 679 static uint64_t gmc_v8_0_get_vm_pde(struct amdgpu_device *adev, uint64_t addr)
 680 {
 681         BUG_ON(addr & 0xFFFFFF0000000FFFULL);
 682         return addr;
 683 }
 684
 685 /**
 686  * gmc_v8_0_set_fault_enable_default - update VM fault handling
 687  *
 688  * @adev: amdgpu_device pointer
 689  * @value: true redirects VM faults to the default page
 690  */
 691 static void gmc_v8_0_set_fault_enable_default(struct amdgpu_device *adev,
 692                                               bool value)
 693 {
 694         u32 tmp;
 695
 696         tmp = RREG32(mmVM_CONTEXT1_CNTL);
 697         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 698                             RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 699         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 700                             DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 701         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 702                             PDE0_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 703         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 704                             VALID_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 705         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 706                             READ_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 707         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 708                             WRITE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 709         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 710                             EXECUTE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 711         WREG32(mmVM_CONTEXT1_CNTL, tmp);
 712 }
 713
 714 /**
 715  * gmc_v8_0_set_prt - set PRT VM fault
 716  *
 717  * @adev: amdgpu_device pointer
 718  * @enable: enable/disable VM fault handling for PRT
 719 */
 720 static void gmc_v8_0_set_prt(struct amdgpu_device *adev, bool enable)
 721 {
 722         u32 tmp;
 723
 724         if (enable && !adev->mc.prt_warning) {
 725                 dev_warn(adev->dev, "Disabling VM faults because of PRT request!\n");
 726                 adev->mc.prt_warning = true;
 727         }
 728
 729         tmp = RREG32(mmVM_PRT_CNTL);
 730         tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
 731                             CB_DISABLE_READ_FAULT_ON_UNMAPPED_ACCESS, enable);
 732         tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
 733                             CB_DISABLE_WRITE_FAULT_ON_UNMAPPED_ACCESS, enable);
 734         tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
 735                             TC_DISABLE_READ_FAULT_ON_UNMAPPED_ACCESS, enable);
 736         tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
 737                             TC_DISABLE_WRITE_FAULT_ON_UNMAPPED_ACCESS, enable);
 738         tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
 739                             L2_CACHE_STORE_INVALID_ENTRIES, enable);
 740         tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
 741                             L1_TLB_STORE_INVALID_ENTRIES, enable);
 742         tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
 743                             MASK_PDE0_FAULT, enable);
 744         WREG32(mmVM_PRT_CNTL, tmp);
 745
 746         if (enable) {
 747                 uint32_t low = AMDGPU_VA_RESERVED_SIZE >> AMDGPU_GPU_PAGE_SHIFT;
 748                 uint32_t high = adev->vm_manager.max_pfn;
 749
 750                 WREG32(mmVM_PRT_APERTURE0_LOW_ADDR, low);
 751                 WREG32(mmVM_PRT_APERTURE1_LOW_ADDR, low);
 752                 WREG32(mmVM_PRT_APERTURE2_LOW_ADDR, low);
 753                 WREG32(mmVM_PRT_APERTURE3_LOW_ADDR, low);
 754                 WREG32(mmVM_PRT_APERTURE0_HIGH_ADDR, high);
 755                 WREG32(mmVM_PRT_APERTURE1_HIGH_ADDR, high);
 756                 WREG32(mmVM_PRT_APERTURE2_HIGH_ADDR, high);
 757                 WREG32(mmVM_PRT_APERTURE3_HIGH_ADDR, high);
 758         } else {
 759                 WREG32(mmVM_PRT_APERTURE0_LOW_ADDR, 0xfffffff);
 760                 WREG32(mmVM_PRT_APERTURE1_LOW_ADDR, 0xfffffff);
 761                 WREG32(mmVM_PRT_APERTURE2_LOW_ADDR, 0xfffffff);
 762                 WREG32(mmVM_PRT_APERTURE3_LOW_ADDR, 0xfffffff);
 763                 WREG32(mmVM_PRT_APERTURE0_HIGH_ADDR, 0x0);
 764                 WREG32(mmVM_PRT_APERTURE1_HIGH_ADDR, 0x0);
 765                 WREG32(mmVM_PRT_APERTURE2_HIGH_ADDR, 0x0);
 766                 WREG32(mmVM_PRT_APERTURE3_HIGH_ADDR, 0x0);
 767         }
 768 }
 769
 770 /**
 771  * gmc_v8_0_gart_enable - gart enable
 772  *
 773  * @adev: amdgpu_device pointer
 774  *
 775  * This sets up the TLBs, programs the page tables for VMID0,
 776  * sets up the hw for VMIDs 1-15 which are allocated on
 777  * demand, and sets up the global locations for the LDS, GDS,
 778  * and GPUVM for FSA64 clients (CIK).
 779  * Returns 0 for success, errors for failure.
 780  */
 781 static int gmc_v8_0_gart_enable(struct amdgpu_device *adev)
 782 {
 783         int r, i;
 784         u32 tmp, field;
 785
 786         if (adev->gart.robj == NULL) {
 787                 dev_err(adev->dev, "No VRAM object for PCIE GART.\n");
 788                 return -EINVAL;
 789         }
 790         r = amdgpu_gart_table_vram_pin(adev);
 791         if (r)
 792                 return r;
 793         /* Setup TLB control */
 794         tmp = RREG32(mmMC_VM_MX_L1_TLB_CNTL);
 795         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 1);
 796         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_FRAGMENT_PROCESSING, 1);
 797         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, SYSTEM_ACCESS_MODE, 3);
 798         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_ADVANCED_DRIVER_MODEL, 1);
 799         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, SYSTEM_APERTURE_UNMAPPED_ACCESS, 0);
 800         WREG32(mmMC_VM_MX_L1_TLB_CNTL, tmp);
 801         /* Setup L2 cache */
 802         tmp = RREG32(mmVM_L2_CNTL);
 803         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_CACHE, 1);
 804         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_FRAGMENT_PROCESSING, 1);
 805         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_PTE_CACHE_LRU_UPDATE_BY_WRITE, 1);
 806         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_PDE0_CACHE_LRU_UPDATE_BY_WRITE, 1);
 807         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, EFFECTIVE_L2_QUEUE_SIZE, 7);
 808         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, CONTEXT1_IDENTITY_ACCESS_MODE, 1);
 809         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_DEFAULT_PAGE_OUT_TO_SYSTEM_MEMORY, 1);
 810         WREG32(mmVM_L2_CNTL, tmp);
 811         tmp = RREG32(mmVM_L2_CNTL2);
 812         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL2, INVALIDATE_ALL_L1_TLBS, 1);
 813         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL2, INVALIDATE_L2_CACHE, 1);
 814         WREG32(mmVM_L2_CNTL2, tmp);
 815
 816         field = adev->vm_manager.fragment_size;
 817         tmp = RREG32(mmVM_L2_CNTL3);
 818         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, L2_CACHE_BIGK_ASSOCIATIVITY, 1);
 819         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, BANK_SELECT, field);
 820         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, L2_CACHE_BIGK_FRAGMENT_SIZE, field);
 821         WREG32(mmVM_L2_CNTL3, tmp);
 822         /* XXX: set to enable PTE/PDE in system memory */
 823         tmp = RREG32(mmVM_L2_CNTL4);
 824         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_CONTEXT0_PDE_REQUEST_PHYSICAL, 0);
 825         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_CONTEXT0_PDE_REQUEST_SHARED, 0);
 826         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_CONTEXT0_PDE_REQUEST_SNOOP, 0);
 827         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_CONTEXT0_PTE_REQUEST_PHYSICAL, 0);
 828         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_CONTEXT0_PTE_REQUEST_SHARED, 0);
 829         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_CONTEXT0_PTE_REQUEST_SNOOP, 0);
 830         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_CONTEXT1_PDE_REQUEST_PHYSICAL, 0);
 831         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_CONTEXT1_PDE_REQUEST_SHARED, 0);
 832         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_CONTEXT1_PDE_REQUEST_SNOOP, 0);
 833         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_CONTEXT1_PTE_REQUEST_PHYSICAL, 0);
 834         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_CONTEXT1_PTE_REQUEST_SHARED, 0);
 835         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_CONTEXT1_PTE_REQUEST_SNOOP, 0);
 836         WREG32(mmVM_L2_CNTL4, tmp);
 837         /* setup context0 */
 838         WREG32(mmVM_CONTEXT0_PAGE_TABLE_START_ADDR, adev->mc.gart_start >> 12);
 839         WREG32(mmVM_CONTEXT0_PAGE_TABLE_END_ADDR, adev->mc.gart_end >> 12);
 840         WREG32(mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR, adev->gart.table_addr >> 12);
 841         WREG32(mmVM_CONTEXT0_PROTECTION_FAULT_DEFAULT_ADDR,
 842                         (u32)(adev->dummy_page.addr >> 12));
 843         WREG32(mmVM_CONTEXT0_CNTL2, 0);
 844         tmp = RREG32(mmVM_CONTEXT0_CNTL);
 845         tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, ENABLE_CONTEXT, 1);
 846         tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, PAGE_TABLE_DEPTH, 0);
 847         tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 848         WREG32(mmVM_CONTEXT0_CNTL, tmp);
 849
 850         WREG32(mmVM_L2_CONTEXT1_IDENTITY_APERTURE_LOW_ADDR, 0);
 851         WREG32(mmVM_L2_CONTEXT1_IDENTITY_APERTURE_HIGH_ADDR, 0);
 852         WREG32(mmVM_L2_CONTEXT_IDENTITY_PHYSICAL_OFFSET, 0);
 853
 854         /* empty context1-15 */
 855         /* FIXME start with 4G, once using 2 level pt switch to full
 856          * vm size space
 857          */
 858         /* set vm size, must be a multiple of 4 */
 859         WREG32(mmVM_CONTEXT1_PAGE_TABLE_START_ADDR, 0);
 860         WREG32(mmVM_CONTEXT1_PAGE_TABLE_END_ADDR, adev->vm_manager.max_pfn - 1);
 861         for (i = 1; i < 16; i++) {
 862                 if (i < 8)
 863                         WREG32(mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR + i,
 864                                adev->gart.table_addr >> 12);
 865                 else
 866                         WREG32(mmVM_CONTEXT8_PAGE_TABLE_BASE_ADDR + i - 8,
 867                                adev->gart.table_addr >> 12);
 868         }
 869
 870         /* enable context1-15 */
 871         WREG32(mmVM_CONTEXT1_PROTECTION_FAULT_DEFAULT_ADDR,
 872                (u32)(adev->dummy_page.addr >> 12));
 873         WREG32(mmVM_CONTEXT1_CNTL2, 4);
 874         tmp = RREG32(mmVM_CONTEXT1_CNTL);
 875         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, ENABLE_CONTEXT, 1);
 876         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, PAGE_TABLE_DEPTH, 1);
 877         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 878         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 879         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, PDE0_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 880         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, VALID_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 881         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, READ_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 882         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, WRITE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 883         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, EXECUTE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 884         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, PAGE_TABLE_BLOCK_SIZE,
 885                             adev->vm_manager.block_size - 9);
 886         WREG32(mmVM_CONTEXT1_CNTL, tmp);
 887         if (amdgpu_vm_fault_stop == AMDGPU_VM_FAULT_STOP_ALWAYS)
 888                 gmc_v8_0_set_fault_enable_default(adev, false);
 889         else
 890                 gmc_v8_0_set_fault_enable_default(adev, true);
 891
 892         gmc_v8_0_gart_flush_gpu_tlb(adev, 0);
 893         DRM_INFO("PCIE GART of %uM enabled (table at 0x%016llX).\n",
 894                  (unsigned)(adev->mc.gart_size >> 20),
 895                  (unsigned long long)adev->gart.table_addr);
 896         adev->gart.ready = true;
 897         return 0;
 898 }
 899
 900 static int gmc_v8_0_gart_init(struct amdgpu_device *adev)
 901 {
 902         int r;
 903
 904         if (adev->gart.robj) {
 905                 WARN(1, "R600 PCIE GART already initialized\n");
 906                 return 0;
 907         }
 908         /* Initialize common gart structure */
 909         r = amdgpu_gart_init(adev);
 910         if (r)
 911                 return r;
 912         adev->gart.table_size = adev->gart.num_gpu_pages * 8;
 913         adev->gart.gart_pte_flags = AMDGPU_PTE_EXECUTABLE;
 914         return amdgpu_gart_table_vram_alloc(adev);
 915 }
 916
 917 /**
 918  * gmc_v8_0_gart_disable - gart disable
 919  *
 920  * @adev: amdgpu_device pointer
 921  *
 922  * This disables all VM page table (CIK).
 923  */
 924 static void gmc_v8_0_gart_disable(struct amdgpu_device *adev)
 925 {
 926         u32 tmp;
 927
 928         /* Disable all tables */
 929         WREG32(mmVM_CONTEXT0_CNTL, 0);
 930         WREG32(mmVM_CONTEXT1_CNTL, 0);
 931         /* Setup TLB control */
 932         tmp = RREG32(mmMC_VM_MX_L1_TLB_CNTL);
 933         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 0);
 934         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_FRAGMENT_PROCESSING, 0);
 935         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_ADVANCED_DRIVER_MODEL, 0);
 936         WREG32(mmMC_VM_MX_L1_TLB_CNTL, tmp);
 937         /* Setup L2 cache */
 938         tmp = RREG32(mmVM_L2_CNTL);
 939         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_CACHE, 0);
 940         WREG32(mmVM_L2_CNTL, tmp);
 941         WREG32(mmVM_L2_CNTL2, 0);
 942         amdgpu_gart_table_vram_unpin(adev);
 943 }
 944
 945 /**
 946  * gmc_v8_0_gart_fini - vm fini callback
 947  *
 948  * @adev: amdgpu_device pointer
 949  *
 950  * Tears down the driver GART/VM setup (CIK).
 951  */
 952 static void gmc_v8_0_gart_fini(struct amdgpu_device *adev)
 953 {
 954         amdgpu_gart_table_vram_free(adev);
 955         amdgpu_gart_fini(adev);
 956 }
 957
 958 /**
 959  * gmc_v8_0_vm_decode_fault - print human readable fault info
 960  *
 961  * @adev: amdgpu_device pointer
 962  * @status: VM_CONTEXT1_PROTECTION_FAULT_STATUS register value
 963  * @addr: VM_CONTEXT1_PROTECTION_FAULT_ADDR register value
 964  *
 965  * Print human readable fault information (CIK).
 966  */
 967 static void gmc_v8_0_vm_decode_fault(struct amdgpu_device *adev,
 968                                      u32 status, u32 addr, u32 mc_client)
 969 {
 970         u32 mc_id;
 971         u32 vmid = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS, VMID);
 972         u32 protections = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS,
 973                                         PROTECTIONS);
 974         char block[5] = { mc_client >> 24, (mc_client >> 16) & 0xff,
 975                 (mc_client >> 8) & 0xff, mc_client & 0xff, 0 };
 976
 977         mc_id = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS,
 978                               MEMORY_CLIENT_ID);
 979
 980         dev_err(adev->dev, "VM fault (0x%02x, vmid %d) at page %u, %s from '%s' (0x%08x) (%d)\n",
 981                protections, vmid, addr,
 982                REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS,
 983                              MEMORY_CLIENT_RW) ?
 984                "write" : "read", block, mc_client, mc_id);
 985 }
 986
 987 static int gmc_v8_0_convert_vram_type(int mc_seq_vram_type)
 988 {
 989         switch (mc_seq_vram_type) {
 990         case MC_SEQ_MISC0__MT__GDDR1:
 991                 return AMDGPU_VRAM_TYPE_GDDR1;
 992         case MC_SEQ_MISC0__MT__DDR2:
 993                 return AMDGPU_VRAM_TYPE_DDR2;
 994         case MC_SEQ_MISC0__MT__GDDR3:
 995                 return AMDGPU_VRAM_TYPE_GDDR3;
 996         case MC_SEQ_MISC0__MT__GDDR4:
 997                 return AMDGPU_VRAM_TYPE_GDDR4;
 998         case MC_SEQ_MISC0__MT__GDDR5:
 999                 return AMDGPU_VRAM_TYPE_GDDR5;
1000         case MC_SEQ_MISC0__MT__HBM:
1001                 return AMDGPU_VRAM_TYPE_HBM;
1002         case MC_SEQ_MISC0__MT__DDR3:
1003                 return AMDGPU_VRAM_TYPE_DDR3;
1004         default:
1005                 return AMDGPU_VRAM_TYPE_UNKNOWN;
1006         }
1007 }
1008
1009 static int gmc_v8_0_early_init(void *handle)
1010 {
1011         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1012
1013         gmc_v8_0_set_gart_funcs(adev);
1014         gmc_v8_0_set_irq_funcs(adev);
1015
1016         adev->mc.shared_aperture_start = 0x2000000000000000ULL;
1017         adev->mc.shared_aperture_end =
1018                 adev->mc.shared_aperture_start + (4ULL << 30) - 1;
1019         adev->mc.private_aperture_start =
1020                 adev->mc.shared_aperture_end + 1;
1021         adev->mc.private_aperture_end =
1022                 adev->mc.private_aperture_start + (4ULL << 30) - 1;
1023
1024         return 0;
1025 }
1026
1027 static int gmc_v8_0_late_init(void *handle)
1028 {
1029         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1030
1031         if (amdgpu_vm_fault_stop != AMDGPU_VM_FAULT_STOP_ALWAYS)
1032                 return amdgpu_irq_get(adev, &adev->mc.vm_fault, 0);
1033         else
1034                 return 0;
1035 }
1036
1037 #define mmMC_SEQ_MISC0_FIJI 0xA71
1038
1039 static int gmc_v8_0_sw_init(void *handle)
1040 {
1041         int r;
1042         int dma_bits;
1043         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1044
1045         if (adev->flags & AMD_IS_APU) {
1046                 adev->mc.vram_type = AMDGPU_VRAM_TYPE_UNKNOWN;
1047         } else {
1048                 u32 tmp;
1049
1050                 if (adev->asic_type == CHIP_FIJI)
1051                         tmp = RREG32(mmMC_SEQ_MISC0_FIJI);
1052                 else
1053                         tmp = RREG32(mmMC_SEQ_MISC0);
1054                 tmp &= MC_SEQ_MISC0__MT__MASK;
1055                 adev->mc.vram_type = gmc_v8_0_convert_vram_type(tmp);
1056         }
1057
1058         r = amdgpu_irq_add_id(adev, AMDGPU_IH_CLIENTID_LEGACY, 146, &adev->mc.vm_fault);
1059         if (r)
1060                 return r;
1061
1062         r = amdgpu_irq_add_id(adev, AMDGPU_IH_CLIENTID_LEGACY, 147, &adev->mc.vm_fault);
1063         if (r)
1064                 return r;
1065
1066         /* Adjust VM size here.
1067          * Currently set to 4GB ((1 << 20) 4k pages).
1068          * Max GPUVM size for cayman and SI is 40 bits.
1069          */
1070         amdgpu_vm_adjust_size(adev, 64, 4);
1071         adev->vm_manager.max_pfn = adev->vm_manager.vm_size << 18;
1072
1073         /* Set the internal MC address mask
1074          * This is the max address of the GPU's
1075          * internal address space.
1076          */
1077         adev->mc.mc_mask = 0xffffffffffULL; /* 40 bit MC */
1078
1079         adev->mc.stolen_size = 256 * 1024;
1080
1081         /* set DMA mask + need_dma32 flags.
1082          * PCIE - can handle 40-bits.
1083          * IGP - can handle 40-bits
1084          * PCI - dma32 for legacy pci gart, 40 bits on newer asics
1085          */
1086         adev->need_dma32 = false;
1087         dma_bits = adev->need_dma32 ? 32 : 40;
1088         r = pci_set_dma_mask(adev->pdev, DMA_BIT_MASK(dma_bits));
1089         if (r) {
1090                 adev->need_dma32 = true;
1091                 dma_bits = 32;
1092                 pr_warn("amdgpu: No suitable DMA available\n");
1093         }
1094         r = pci_set_consistent_dma_mask(adev->pdev, DMA_BIT_MASK(dma_bits));
1095         if (r) {
1096                 pci_set_consistent_dma_mask(adev->pdev, DMA_BIT_MASK(32));
1097                 pr_warn("amdgpu: No coherent DMA available\n");
1098         }
1099
1100         r = gmc_v8_0_init_microcode(adev);
1101         if (r) {
1102                 DRM_ERROR("Failed to load mc firmware!\n");
1103                 return r;
1104         }
1105
1106         r = gmc_v8_0_mc_init(adev);
1107         if (r)
1108                 return r;
1109
1110         /* Memory manager */
1111         r = amdgpu_bo_init(adev);
1112         if (r)
1113                 return r;
1114
1115         r = gmc_v8_0_gart_init(adev);
1116         if (r)
1117                 return r;
1118
1119         /*
1120          * number of VMs
1121          * VMID 0 is reserved for System
1122          * amdgpu graphics/compute will use VMIDs 1-7
1123          * amdkfd will use VMIDs 8-15
1124          */
1125         adev->vm_manager.id_mgr[0].num_ids = AMDGPU_NUM_OF_VMIDS;
1126         adev->vm_manager.num_level = 1;
1127         amdgpu_vm_manager_init(adev);
1128
1129         /* base offset of vram pages */
1130         if (adev->flags & AMD_IS_APU) {
1131                 u64 tmp = RREG32(mmMC_VM_FB_OFFSET);
1132
1133                 tmp <<= 22;
1134                 adev->vm_manager.vram_base_offset = tmp;
1135         } else {
1136                 adev->vm_manager.vram_base_offset = 0;
1137         }
1138
1139         return 0;
1140 }
1141
1142 static int gmc_v8_0_sw_fini(void *handle)
1143 {
1144         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1145
1146         amdgpu_vm_manager_fini(adev);
1147         gmc_v8_0_gart_fini(adev);
1148         amdgpu_gem_force_release(adev);
1149         amdgpu_bo_fini(adev);
1150
1151         return 0;
1152 }
1153
1154 static int gmc_v8_0_hw_init(void *handle)
1155 {
1156         int r;
1157         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1158
1159         gmc_v8_0_init_golden_registers(adev);
1160
1161         gmc_v8_0_mc_program(adev);
1162
1163         if (adev->asic_type == CHIP_TONGA) {
1164                 r = gmc_v8_0_tonga_mc_load_microcode(adev);
1165                 if (r) {
1166                         DRM_ERROR("Failed to load MC firmware!\n");
1167                         return r;
1168                 }
1169         } else if (adev->asic_type == CHIP_POLARIS11 ||
1170                         adev->asic_type == CHIP_POLARIS10 ||
1171                         adev->asic_type == CHIP_POLARIS12) {
1172                 r = gmc_v8_0_polaris_mc_load_microcode(adev);
1173                 if (r) {
1174                         DRM_ERROR("Failed to load MC firmware!\n");
1175                         return r;
1176                 }
1177         }
1178
1179         r = gmc_v8_0_gart_enable(adev);
1180         if (r)
1181                 return r;
1182
1183         return r;
1184 }
1185
1186 static int gmc_v8_0_hw_fini(void *handle)
1187 {
1188         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1189
1190         amdgpu_irq_put(adev, &adev->mc.vm_fault, 0);
1191         gmc_v8_0_gart_disable(adev);
1192
1193         return 0;
1194 }
1195
1196 static int gmc_v8_0_suspend(void *handle)
1197 {
1198         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1199
1200         gmc_v8_0_hw_fini(adev);
1201
1202         return 0;
1203 }
1204
1205 static int gmc_v8_0_resume(void *handle)
1206 {
1207         int r;
1208         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1209
1210         r = gmc_v8_0_hw_init(adev);
1211         if (r)
1212                 return r;
1213
1214         amdgpu_vm_reset_all_ids(adev);
1215
1216         return 0;
1217 }
1218
1219 static bool gmc_v8_0_is_idle(void *handle)
1220 {
1221         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1222         u32 tmp = RREG32(mmSRBM_STATUS);
1223
1224         if (tmp & (SRBM_STATUS__MCB_BUSY_MASK | SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK |
1225                    SRBM_STATUS__MCC_BUSY_MASK | SRBM_STATUS__MCD_BUSY_MASK | SRBM_STATUS__VMC_BUSY_MASK))
1226                 return false;
1227
1228         return true;
1229 }
1230
1231 static int gmc_v8_0_wait_for_idle(void *handle)
1232 {
1233         unsigned i;
1234         u32 tmp;
1235         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1236
1237         for (i = 0; i < adev->usec_timeout; i++) {
1238                 /* read MC_STATUS */
1239                 tmp = RREG32(mmSRBM_STATUS) & (SRBM_STATUS__MCB_BUSY_MASK |
1240                                                SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK |
1241                                                SRBM_STATUS__MCC_BUSY_MASK |
1242                                                SRBM_STATUS__MCD_BUSY_MASK |
1243                                                SRBM_STATUS__VMC_BUSY_MASK |
1244                                                SRBM_STATUS__VMC1_BUSY_MASK);
1245                 if (!tmp)
1246                         return 0;
1247                 udelay(1);
1248         }
1249         return -ETIMEDOUT;
1250
1251 }
1252
1253 static bool gmc_v8_0_check_soft_reset(void *handle)
1254 {
1255         u32 srbm_soft_reset = 0;
1256         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1257         u32 tmp = RREG32(mmSRBM_STATUS);
1258
1259         if (tmp & SRBM_STATUS__VMC_BUSY_MASK)
1260                 srbm_soft_reset = REG_SET_FIELD(srbm_soft_reset,
1261                                                 SRBM_SOFT_RESET, SOFT_RESET_VMC, 1);
1262
1263         if (tmp & (SRBM_STATUS__MCB_BUSY_MASK | SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK |
1264                    SRBM_STATUS__MCC_BUSY_MASK | SRBM_STATUS__MCD_BUSY_MASK)) {
1265                 if (!(adev->flags & AMD_IS_APU))
1266                         srbm_soft_reset = REG_SET_FIELD(srbm_soft_reset,
1267                                                         SRBM_SOFT_RESET, SOFT_RESET_MC, 1);
1268         }
1269         if (srbm_soft_reset) {
1270                 adev->mc.srbm_soft_reset = srbm_soft_reset;
1271                 return true;
1272         } else {
1273                 adev->mc.srbm_soft_reset = 0;
1274                 return false;
1275         }
1276 }
1277
1278 static int gmc_v8_0_pre_soft_reset(void *handle)
1279 {
1280         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1281
1282         if (!adev->mc.srbm_soft_reset)
1283                 return 0;
1284
1285         gmc_v8_0_mc_stop(adev);
1286         if (gmc_v8_0_wait_for_idle(adev)) {
1287                 dev_warn(adev->dev, "Wait for GMC idle timed out !\n");
1288         }
1289
1290         return 0;
1291 }
1292
1293 static int gmc_v8_0_soft_reset(void *handle)
1294 {
1295         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1296         u32 srbm_soft_reset;
1297
1298         if (!adev->mc.srbm_soft_reset)
1299                 return 0;
1300         srbm_soft_reset = adev->mc.srbm_soft_reset;
1301
1302         if (srbm_soft_reset) {
1303                 u32 tmp;
1304
1305                 tmp = RREG32(mmSRBM_SOFT_RESET);
1306                 tmp |= srbm_soft_reset;
1307                 dev_info(adev->dev, "SRBM_SOFT_RESET=0x%08X\n", tmp);
1308                 WREG32(mmSRBM_SOFT_RESET, tmp);
1309                 tmp = RREG32(mmSRBM_SOFT_RESET);
1310
1311                 udelay(50);
1312
1313                 tmp &= ~srbm_soft_reset;
1314                 WREG32(mmSRBM_SOFT_RESET, tmp);
1315                 tmp = RREG32(mmSRBM_SOFT_RESET);
1316
1317                 /* Wait a little for things to settle down */
1318                 udelay(50);
1319         }
1320
1321         return 0;
1322 }
1323
1324 static int gmc_v8_0_post_soft_reset(void *handle)
1325 {
1326         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1327
1328         if (!adev->mc.srbm_soft_reset)
1329                 return 0;
1330
1331         gmc_v8_0_mc_resume(adev);
1332         return 0;
1333 }
1334
1335 static int gmc_v8_0_vm_fault_interrupt_state(struct amdgpu_device *adev,
1336                                              struct amdgpu_irq_src *src,
1337                                              unsigned type,
1338                                              enum amdgpu_interrupt_state state)
1339 {
1340         u32 tmp;
1341         u32 bits = (VM_CONTEXT1_CNTL__RANGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1342                     VM_CONTEXT1_CNTL__DUMMY_PAGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1343                     VM_CONTEXT1_CNTL__PDE0_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1344                     VM_CONTEXT1_CNTL__VALID_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1345                     VM_CONTEXT1_CNTL__READ_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1346                     VM_CONTEXT1_CNTL__WRITE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1347                     VM_CONTEXT1_CNTL__EXECUTE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK);
1348
1349         switch (state) {
1350         case AMDGPU_IRQ_STATE_DISABLE:
1351                 /* system context */
1352                 tmp = RREG32(mmVM_CONTEXT0_CNTL);
1353                 tmp &= ~bits;
1354                 WREG32(mmVM_CONTEXT0_CNTL, tmp);
1355                 /* VMs */
1356                 tmp = RREG32(mmVM_CONTEXT1_CNTL);
1357                 tmp &= ~bits;
1358                 WREG32(mmVM_CONTEXT1_CNTL, tmp);
1359                 break;
1360         case AMDGPU_IRQ_STATE_ENABLE:
1361                 /* system context */
1362                 tmp = RREG32(mmVM_CONTEXT0_CNTL);
1363                 tmp |= bits;
1364                 WREG32(mmVM_CONTEXT0_CNTL, tmp);
1365                 /* VMs */
1366                 tmp = RREG32(mmVM_CONTEXT1_CNTL);
1367                 tmp |= bits;
1368                 WREG32(mmVM_CONTEXT1_CNTL, tmp);
1369                 break;
1370         default:
1371                 break;
1372         }
1373
1374         return 0;
1375 }
1376
1377 static int gmc_v8_0_process_interrupt(struct amdgpu_device *adev,
1378                                       struct amdgpu_irq_src *source,
1379                                       struct amdgpu_iv_entry *entry)
1380 {
1381         u32 addr, status, mc_client;
1382
1383         if (amdgpu_sriov_vf(adev)) {
1384                 dev_err(adev->dev, "GPU fault detected: %d 0x%08x\n",
1385                         entry->src_id, entry->src_data[0]);
1386                 dev_err(adev->dev, " Can't decode VM fault info here on SRIOV VF\n");
1387                 return 0;
1388         }
1389
1390         addr = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_ADDR);
1391         status = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_STATUS);
1392         mc_client = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_MCCLIENT);
1393         /* reset addr and status */
1394         WREG32_P(mmVM_CONTEXT1_CNTL2, 1, ~1);
1395
1396         if (!addr && !status)
1397                 return 0;
1398
1399         if (amdgpu_vm_fault_stop == AMDGPU_VM_FAULT_STOP_FIRST)
1400                 gmc_v8_0_set_fault_enable_default(adev, false);
1401
1402         if (printk_ratelimit()) {
1403                 dev_err(adev->dev, "GPU fault detected: %d 0x%08x\n",
1404                         entry->src_id, entry->src_data[0]);
1405                 dev_err(adev->dev, "  VM_CONTEXT1_PROTECTION_FAULT_ADDR   0x%08X\n",
1406                         addr);
1407                 dev_err(adev->dev, "  VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x%08X\n",
1408                         status);
1409                 gmc_v8_0_vm_decode_fault(adev, status, addr, mc_client);
1410         }
1411
1412         return 0;
1413 }
1414
1415 static void fiji_update_mc_medium_grain_clock_gating(struct amdgpu_device *adev,
1416                                                      bool enable)
1417 {
1418         uint32_t data;
1419
1420         if (enable && (adev->cg_flags & AMD_CG_SUPPORT_MC_MGCG)) {
1421                 data = RREG32(mmMC_HUB_MISC_HUB_CG);
1422                 data |= MC_HUB_MISC_HUB_CG__ENABLE_MASK;
1423                 WREG32(mmMC_HUB_MISC_HUB_CG, data);
1424
1425                 data = RREG32(mmMC_HUB_MISC_SIP_CG);
1426                 data |= MC_HUB_MISC_SIP_CG__ENABLE_MASK;
1427                 WREG32(mmMC_HUB_MISC_SIP_CG, data);
1428
1429                 data = RREG32(mmMC_HUB_MISC_VM_CG);
1430                 data |= MC_HUB_MISC_VM_CG__ENABLE_MASK;
1431                 WREG32(mmMC_HUB_MISC_VM_CG, data);
1432
1433                 data = RREG32(mmMC_XPB_CLK_GAT);
1434                 data |= MC_XPB_CLK_GAT__ENABLE_MASK;
1435                 WREG32(mmMC_XPB_CLK_GAT, data);
1436
1437                 data = RREG32(mmATC_MISC_CG);
1438                 data |= ATC_MISC_CG__ENABLE_MASK;
1439                 WREG32(mmATC_MISC_CG, data);
1440
1441                 data = RREG32(mmMC_CITF_MISC_WR_CG);
1442                 data |= MC_CITF_MISC_WR_CG__ENABLE_MASK;
1443                 WREG32(mmMC_CITF_MISC_WR_CG, data);
1444
1445                 data = RREG32(mmMC_CITF_MISC_RD_CG);
1446                 data |= MC_CITF_MISC_RD_CG__ENABLE_MASK;
1447                 WREG32(mmMC_CITF_MISC_RD_CG, data);
1448
1449                 data = RREG32(mmMC_CITF_MISC_VM_CG);
1450                 data |= MC_CITF_MISC_VM_CG__ENABLE_MASK;
1451                 WREG32(mmMC_CITF_MISC_VM_CG, data);
1452
1453                 data = RREG32(mmVM_L2_CG);
1454                 data |= VM_L2_CG__ENABLE_MASK;
1455                 WREG32(mmVM_L2_CG, data);
1456         } else {
1457                 data = RREG32(mmMC_HUB_MISC_HUB_CG);
1458                 data &= ~MC_HUB_MISC_HUB_CG__ENABLE_MASK;
1459                 WREG32(mmMC_HUB_MISC_HUB_CG, data);
1460
1461                 data = RREG32(mmMC_HUB_MISC_SIP_CG);
1462                 data &= ~MC_HUB_MISC_SIP_CG__ENABLE_MASK;
1463                 WREG32(mmMC_HUB_MISC_SIP_CG, data);
1464
1465                 data = RREG32(mmMC_HUB_MISC_VM_CG);
1466                 data &= ~MC_HUB_MISC_VM_CG__ENABLE_MASK;
1467                 WREG32(mmMC_HUB_MISC_VM_CG, data);
1468
1469                 data = RREG32(mmMC_XPB_CLK_GAT);
1470                 data &= ~MC_XPB_CLK_GAT__ENABLE_MASK;
1471                 WREG32(mmMC_XPB_CLK_GAT, data);
1472
1473                 data = RREG32(mmATC_MISC_CG);
1474                 data &= ~ATC_MISC_CG__ENABLE_MASK;
1475                 WREG32(mmATC_MISC_CG, data);
1476
1477                 data = RREG32(mmMC_CITF_MISC_WR_CG);
1478                 data &= ~MC_CITF_MISC_WR_CG__ENABLE_MASK;
1479                 WREG32(mmMC_CITF_MISC_WR_CG, data);
1480
1481                 data = RREG32(mmMC_CITF_MISC_RD_CG);
1482                 data &= ~MC_CITF_MISC_RD_CG__ENABLE_MASK;
1483                 WREG32(mmMC_CITF_MISC_RD_CG, data);
1484
1485                 data = RREG32(mmMC_CITF_MISC_VM_CG);
1486                 data &= ~MC_CITF_MISC_VM_CG__ENABLE_MASK;
1487                 WREG32(mmMC_CITF_MISC_VM_CG, data);
1488
1489                 data = RREG32(mmVM_L2_CG);
1490                 data &= ~VM_L2_CG__ENABLE_MASK;
1491                 WREG32(mmVM_L2_CG, data);
1492         }
1493 }
1494
1495 static void fiji_update_mc_light_sleep(struct amdgpu_device *adev,
1496                                        bool enable)
1497 {
1498         uint32_t data;
1499
1500         if (enable && (adev->cg_flags & AMD_CG_SUPPORT_MC_LS)) {
1501                 data = RREG32(mmMC_HUB_MISC_HUB_CG);
1502                 data |= MC_HUB_MISC_HUB_CG__MEM_LS_ENABLE_MASK;
1503                 WREG32(mmMC_HUB_MISC_HUB_CG, data);
1504
1505                 data = RREG32(mmMC_HUB_MISC_SIP_CG);
1506                 data |= MC_HUB_MISC_SIP_CG__MEM_LS_ENABLE_MASK;
1507                 WREG32(mmMC_HUB_MISC_SIP_CG, data);
1508
1509                 data = RREG32(mmMC_HUB_MISC_VM_CG);
1510                 data |= MC_HUB_MISC_VM_CG__MEM_LS_ENABLE_MASK;
1511                 WREG32(mmMC_HUB_MISC_VM_CG, data);
1512
1513                 data = RREG32(mmMC_XPB_CLK_GAT);
1514                 data |= MC_XPB_CLK_GAT__MEM_LS_ENABLE_MASK;
1515                 WREG32(mmMC_XPB_CLK_GAT, data);
1516
1517                 data = RREG32(mmATC_MISC_CG);
1518                 data |= ATC_MISC_CG__MEM_LS_ENABLE_MASK;
1519                 WREG32(mmATC_MISC_CG, data);
1520
1521                 data = RREG32(mmMC_CITF_MISC_WR_CG);
1522                 data |= MC_CITF_MISC_WR_CG__MEM_LS_ENABLE_MASK;
1523                 WREG32(mmMC_CITF_MISC_WR_CG, data);
1524
1525                 data = RREG32(mmMC_CITF_MISC_RD_CG);
1526                 data |= MC_CITF_MISC_RD_CG__MEM_LS_ENABLE_MASK;
1527                 WREG32(mmMC_CITF_MISC_RD_CG, data);
1528
1529                 data = RREG32(mmMC_CITF_MISC_VM_CG);
1530                 data |= MC_CITF_MISC_VM_CG__MEM_LS_ENABLE_MASK;
1531                 WREG32(mmMC_CITF_MISC_VM_CG, data);
1532
1533                 data = RREG32(mmVM_L2_CG);
1534                 data |= VM_L2_CG__MEM_LS_ENABLE_MASK;
1535                 WREG32(mmVM_L2_CG, data);
1536         } else {
1537                 data = RREG32(mmMC_HUB_MISC_HUB_CG);
1538                 data &= ~MC_HUB_MISC_HUB_CG__MEM_LS_ENABLE_MASK;
1539                 WREG32(mmMC_HUB_MISC_HUB_CG, data);
1540
1541                 data = RREG32(mmMC_HUB_MISC_SIP_CG);
1542                 data &= ~MC_HUB_MISC_SIP_CG__MEM_LS_ENABLE_MASK;
1543                 WREG32(mmMC_HUB_MISC_SIP_CG, data);
1544
1545                 data = RREG32(mmMC_HUB_MISC_VM_CG);
1546                 data &= ~MC_HUB_MISC_VM_CG__MEM_LS_ENABLE_MASK;
1547                 WREG32(mmMC_HUB_MISC_VM_CG, data);
1548
1549                 data = RREG32(mmMC_XPB_CLK_GAT);
1550                 data &= ~MC_XPB_CLK_GAT__MEM_LS_ENABLE_MASK;
1551                 WREG32(mmMC_XPB_CLK_GAT, data);
1552
1553                 data = RREG32(mmATC_MISC_CG);
1554                 data &= ~ATC_MISC_CG__MEM_LS_ENABLE_MASK;
1555                 WREG32(mmATC_MISC_CG, data);
1556
1557                 data = RREG32(mmMC_CITF_MISC_WR_CG);
1558                 data &= ~MC_CITF_MISC_WR_CG__MEM_LS_ENABLE_MASK;
1559                 WREG32(mmMC_CITF_MISC_WR_CG, data);
1560
1561                 data = RREG32(mmMC_CITF_MISC_RD_CG);
1562                 data &= ~MC_CITF_MISC_RD_CG__MEM_LS_ENABLE_MASK;
1563                 WREG32(mmMC_CITF_MISC_RD_CG, data);
1564
1565                 data = RREG32(mmMC_CITF_MISC_VM_CG);
1566                 data &= ~MC_CITF_MISC_VM_CG__MEM_LS_ENABLE_MASK;
1567                 WREG32(mmMC_CITF_MISC_VM_CG, data);
1568
1569                 data = RREG32(mmVM_L2_CG);
1570                 data &= ~VM_L2_CG__MEM_LS_ENABLE_MASK;
1571                 WREG32(mmVM_L2_CG, data);
1572         }
1573 }
1574
1575 static int gmc_v8_0_set_clockgating_state(void *handle,
1576                                           enum amd_clockgating_state state)
1577 {
1578         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1579
1580         if (amdgpu_sriov_vf(adev))
1581                 return 0;
1582
1583         switch (adev->asic_type) {
1584         case CHIP_FIJI:
1585                 fiji_update_mc_medium_grain_clock_gating(adev,
1586                                 state == AMD_CG_STATE_GATE);
1587                 fiji_update_mc_light_sleep(adev,
1588                                 state == AMD_CG_STATE_GATE);
1589                 break;
1590         default:
1591                 break;
1592         }
1593         return 0;
1594 }
1595
1596 static int gmc_v8_0_set_powergating_state(void *handle,
1597                                           enum amd_powergating_state state)
1598 {
1599         return 0;
1600 }
1601
1602 static void gmc_v8_0_get_clockgating_state(void *handle, u32 *flags)
1603 {
1604         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1605         int data;
1606
1607         if (amdgpu_sriov_vf(adev))
1608                 *flags = 0;
1609
1610         /* AMD_CG_SUPPORT_MC_MGCG */
1611         data = RREG32(mmMC_HUB_MISC_HUB_CG);
1612         if (data & MC_HUB_MISC_HUB_CG__ENABLE_MASK)
1613                 *flags |= AMD_CG_SUPPORT_MC_MGCG;
1614
1615         /* AMD_CG_SUPPORT_MC_LS */
1616         if (data & MC_HUB_MISC_HUB_CG__MEM_LS_ENABLE_MASK)
1617                 *flags |= AMD_CG_SUPPORT_MC_LS;
1618 }
1619
1620 static const struct amd_ip_funcs gmc_v8_0_ip_funcs = {
1621         .name = "gmc_v8_0",
1622         .early_init = gmc_v8_0_early_init,
1623         .late_init = gmc_v8_0_late_init,
1624         .sw_init = gmc_v8_0_sw_init,
1625         .sw_fini = gmc_v8_0_sw_fini,
1626         .hw_init = gmc_v8_0_hw_init,
1627         .hw_fini = gmc_v8_0_hw_fini,
1628         .suspend = gmc_v8_0_suspend,
1629         .resume = gmc_v8_0_resume,
1630         .is_idle = gmc_v8_0_is_idle,
1631         .wait_for_idle = gmc_v8_0_wait_for_idle,
1632         .check_soft_reset = gmc_v8_0_check_soft_reset,
1633         .pre_soft_reset = gmc_v8_0_pre_soft_reset,
1634         .soft_reset = gmc_v8_0_soft_reset,
1635         .post_soft_reset = gmc_v8_0_post_soft_reset,
1636         .set_clockgating_state = gmc_v8_0_set_clockgating_state,
1637         .set_powergating_state = gmc_v8_0_set_powergating_state,
1638         .get_clockgating_state = gmc_v8_0_get_clockgating_state,
1639 };
1640
1641 static const struct amdgpu_gart_funcs gmc_v8_0_gart_funcs = {
1642         .flush_gpu_tlb = gmc_v8_0_gart_flush_gpu_tlb,
1643         .set_pte_pde = gmc_v8_0_gart_set_pte_pde,
1644         .set_prt = gmc_v8_0_set_prt,
1645         .get_vm_pte_flags = gmc_v8_0_get_vm_pte_flags,
1646         .get_vm_pde = gmc_v8_0_get_vm_pde
1647 };
1648
1649 static const struct amdgpu_irq_src_funcs gmc_v8_0_irq_funcs = {
1650         .set = gmc_v8_0_vm_fault_interrupt_state,
1651         .process = gmc_v8_0_process_interrupt,
1652 };
1653
1654 static void gmc_v8_0_set_gart_funcs(struct amdgpu_device *adev)
1655 {
1656         if (adev->gart.gart_funcs == NULL)
1657                 adev->gart.gart_funcs = &gmc_v8_0_gart_funcs;
1658 }
1659
1660 static void gmc_v8_0_set_irq_funcs(struct amdgpu_device *adev)
1661 {
1662         adev->mc.vm_fault.num_types = 1;
1663         adev->mc.vm_fault.funcs = &gmc_v8_0_irq_funcs;
1664 }
1665
1666 const struct amdgpu_ip_block_version gmc_v8_0_ip_block =
1667 {
1668         .type = AMD_IP_BLOCK_TYPE_GMC,
1669         .major = 8,
1670         .minor = 0,
1671         .rev = 0,
1672         .funcs = &gmc_v8_0_ip_funcs,
1673 };
1674
1675 const struct amdgpu_ip_block_version gmc_v8_1_ip_block =
1676 {
1677         .type = AMD_IP_BLOCK_TYPE_GMC,
1678         .major = 8,
1679         .minor = 1,
1680         .rev = 0,
1681         .funcs = &gmc_v8_0_ip_funcs,
1682 };
1683
1684 const struct amdgpu_ip_block_version gmc_v8_5_ip_block =
1685 {
1686         .type = AMD_IP_BLOCK_TYPE_GMC,
1687         .major = 8,
1688         .minor = 5,
1689         .rev = 0,
1690         .funcs = &gmc_v8_0_ip_funcs,
1691 };