linux/drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c
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   1/*
   2 * Copyright 2016 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 "amdgpu.h"
  24#include "mmhub_v1_0.h"
  25
  26#include "mmhub/mmhub_1_0_offset.h"
  27#include "mmhub/mmhub_1_0_sh_mask.h"
  28#include "mmhub/mmhub_1_0_default.h"
  29#include "athub/athub_1_0_offset.h"
  30#include "athub/athub_1_0_sh_mask.h"
  31#include "vega10_enum.h"
  32
  33#include "soc15_common.h"
  34
  35#define mmDAGB0_CNTL_MISC2_RV 0x008f
  36#define mmDAGB0_CNTL_MISC2_RV_BASE_IDX 0
  37
  38u64 mmhub_v1_0_get_fb_location(struct amdgpu_device *adev)
  39{
  40        u64 base = RREG32_SOC15(MMHUB, 0, mmMC_VM_FB_LOCATION_BASE);
  41
  42        base &= MC_VM_FB_LOCATION_BASE__FB_BASE_MASK;
  43        base <<= 24;
  44
  45        return base;
  46}
  47
  48static void mmhub_v1_0_init_gart_pt_regs(struct amdgpu_device *adev)
  49{
  50        uint64_t value;
  51
  52        BUG_ON(adev->gart.table_addr & (~0x0000FFFFFFFFF000ULL));
  53        value = adev->gart.table_addr - adev->mc.vram_start +
  54                adev->vm_manager.vram_base_offset;
  55        value &= 0x0000FFFFFFFFF000ULL;
  56        value |= 0x1; /* valid bit */
  57
  58        WREG32_SOC15(MMHUB, 0, mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_LO32,
  59                     lower_32_bits(value));
  60
  61        WREG32_SOC15(MMHUB, 0, mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_HI32,
  62                     upper_32_bits(value));
  63}
  64
  65static void mmhub_v1_0_init_gart_aperture_regs(struct amdgpu_device *adev)
  66{
  67        mmhub_v1_0_init_gart_pt_regs(adev);
  68
  69        WREG32_SOC15(MMHUB, 0, mmVM_CONTEXT0_PAGE_TABLE_START_ADDR_LO32,
  70                     (u32)(adev->mc.gart_start >> 12));
  71        WREG32_SOC15(MMHUB, 0, mmVM_CONTEXT0_PAGE_TABLE_START_ADDR_HI32,
  72                     (u32)(adev->mc.gart_start >> 44));
  73
  74        WREG32_SOC15(MMHUB, 0, mmVM_CONTEXT0_PAGE_TABLE_END_ADDR_LO32,
  75                     (u32)(adev->mc.gart_end >> 12));
  76        WREG32_SOC15(MMHUB, 0, mmVM_CONTEXT0_PAGE_TABLE_END_ADDR_HI32,
  77                     (u32)(adev->mc.gart_end >> 44));
  78}
  79
  80static void mmhub_v1_0_init_system_aperture_regs(struct amdgpu_device *adev)
  81{
  82        uint64_t value;
  83        uint32_t tmp;
  84
  85        /* Disable AGP. */
  86        WREG32_SOC15(MMHUB, 0, mmMC_VM_AGP_BASE, 0);
  87        WREG32_SOC15(MMHUB, 0, mmMC_VM_AGP_TOP, 0);
  88        WREG32_SOC15(MMHUB, 0, mmMC_VM_AGP_BOT, 0x00FFFFFF);
  89
  90        /* Program the system aperture low logical page number. */
  91        WREG32_SOC15(MMHUB, 0, mmMC_VM_SYSTEM_APERTURE_LOW_ADDR,
  92                     adev->mc.vram_start >> 18);
  93        WREG32_SOC15(MMHUB, 0, mmMC_VM_SYSTEM_APERTURE_HIGH_ADDR,
  94                     adev->mc.vram_end >> 18);
  95
  96        /* Set default page address. */
  97        value = adev->vram_scratch.gpu_addr - adev->mc.vram_start +
  98                adev->vm_manager.vram_base_offset;
  99        WREG32_SOC15(MMHUB, 0, mmMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR_LSB,
 100                     (u32)(value >> 12));
 101        WREG32_SOC15(MMHUB, 0, mmMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR_MSB,
 102                     (u32)(value >> 44));
 103
 104        /* Program "protection fault". */
 105        WREG32_SOC15(MMHUB, 0, mmVM_L2_PROTECTION_FAULT_DEFAULT_ADDR_LO32,
 106                     (u32)(adev->dummy_page.addr >> 12));
 107        WREG32_SOC15(MMHUB, 0, mmVM_L2_PROTECTION_FAULT_DEFAULT_ADDR_HI32,
 108                     (u32)((u64)adev->dummy_page.addr >> 44));
 109
 110        tmp = RREG32_SOC15(MMHUB, 0, mmVM_L2_PROTECTION_FAULT_CNTL2);
 111        tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL2,
 112                            ACTIVE_PAGE_MIGRATION_PTE_READ_RETRY, 1);
 113        WREG32_SOC15(MMHUB, 0, mmVM_L2_PROTECTION_FAULT_CNTL2, tmp);
 114}
 115
 116static void mmhub_v1_0_init_tlb_regs(struct amdgpu_device *adev)
 117{
 118        uint32_t tmp;
 119
 120        /* Setup TLB control */
 121        tmp = RREG32_SOC15(MMHUB, 0, mmMC_VM_MX_L1_TLB_CNTL);
 122
 123        tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 1);
 124        tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, SYSTEM_ACCESS_MODE, 3);
 125        tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL,
 126                            ENABLE_ADVANCED_DRIVER_MODEL, 1);
 127        tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL,
 128                            SYSTEM_APERTURE_UNMAPPED_ACCESS, 0);
 129        tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ECO_BITS, 0);
 130        tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL,
 131                            MTYPE, MTYPE_UC);/* XXX for emulation. */
 132        tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ATC_EN, 1);
 133
 134        WREG32_SOC15(MMHUB, 0, mmMC_VM_MX_L1_TLB_CNTL, tmp);
 135}
 136
 137static void mmhub_v1_0_init_cache_regs(struct amdgpu_device *adev)
 138{
 139        uint32_t tmp;
 140
 141        /* Setup L2 cache */
 142        tmp = RREG32_SOC15(MMHUB, 0, mmVM_L2_CNTL);
 143        tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_CACHE, 1);
 144        tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_FRAGMENT_PROCESSING, 1);
 145        /* XXX for emulation, Refer to closed source code.*/
 146        tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, L2_PDE0_CACHE_TAG_GENERATION_MODE,
 147                            0);
 148        tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, PDE_FAULT_CLASSIFICATION, 1);
 149        tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, CONTEXT1_IDENTITY_ACCESS_MODE, 1);
 150        tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, IDENTITY_MODE_FRAGMENT_SIZE, 0);
 151        WREG32_SOC15(MMHUB, 0, mmVM_L2_CNTL, tmp);
 152
 153        tmp = RREG32_SOC15(MMHUB, 0, mmVM_L2_CNTL2);
 154        tmp = REG_SET_FIELD(tmp, VM_L2_CNTL2, INVALIDATE_ALL_L1_TLBS, 1);
 155        tmp = REG_SET_FIELD(tmp, VM_L2_CNTL2, INVALIDATE_L2_CACHE, 1);
 156        WREG32_SOC15(MMHUB, 0, mmVM_L2_CNTL2, tmp);
 157
 158        if (adev->mc.translate_further) {
 159                tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, BANK_SELECT, 12);
 160                tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3,
 161                                    L2_CACHE_BIGK_FRAGMENT_SIZE, 9);
 162        } else {
 163                tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, BANK_SELECT, 9);
 164                tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3,
 165                                    L2_CACHE_BIGK_FRAGMENT_SIZE, 6);
 166        }
 167
 168        tmp = mmVM_L2_CNTL4_DEFAULT;
 169        tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_PDE_REQUEST_PHYSICAL, 0);
 170        tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_PTE_REQUEST_PHYSICAL, 0);
 171        WREG32_SOC15(MMHUB, 0, mmVM_L2_CNTL4, tmp);
 172}
 173
 174static void mmhub_v1_0_enable_system_domain(struct amdgpu_device *adev)
 175{
 176        uint32_t tmp;
 177
 178        tmp = RREG32_SOC15(MMHUB, 0, mmVM_CONTEXT0_CNTL);
 179        tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, ENABLE_CONTEXT, 1);
 180        tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, PAGE_TABLE_DEPTH, 0);
 181        WREG32_SOC15(MMHUB, 0, mmVM_CONTEXT0_CNTL, tmp);
 182}
 183
 184static void mmhub_v1_0_disable_identity_aperture(struct amdgpu_device *adev)
 185{
 186        WREG32_SOC15(MMHUB, 0, mmVM_L2_CONTEXT1_IDENTITY_APERTURE_LOW_ADDR_LO32,
 187                     0XFFFFFFFF);
 188        WREG32_SOC15(MMHUB, 0, mmVM_L2_CONTEXT1_IDENTITY_APERTURE_LOW_ADDR_HI32,
 189                     0x0000000F);
 190
 191        WREG32_SOC15(MMHUB, 0,
 192                     mmVM_L2_CONTEXT1_IDENTITY_APERTURE_HIGH_ADDR_LO32, 0);
 193        WREG32_SOC15(MMHUB, 0,
 194                     mmVM_L2_CONTEXT1_IDENTITY_APERTURE_HIGH_ADDR_HI32, 0);
 195
 196        WREG32_SOC15(MMHUB, 0, mmVM_L2_CONTEXT_IDENTITY_PHYSICAL_OFFSET_LO32,
 197                     0);
 198        WREG32_SOC15(MMHUB, 0, mmVM_L2_CONTEXT_IDENTITY_PHYSICAL_OFFSET_HI32,
 199                     0);
 200}
 201
 202static void mmhub_v1_0_setup_vmid_config(struct amdgpu_device *adev)
 203{
 204        unsigned num_level, block_size;
 205        uint32_t tmp;
 206        int i;
 207
 208        num_level = adev->vm_manager.num_level;
 209        block_size = adev->vm_manager.block_size;
 210        if (adev->mc.translate_further)
 211                num_level -= 1;
 212        else
 213                block_size -= 9;
 214
 215        for (i = 0; i <= 14; i++) {
 216                tmp = RREG32_SOC15_OFFSET(MMHUB, 0, mmVM_CONTEXT1_CNTL, i);
 217                tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, ENABLE_CONTEXT, 1);
 218                tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, PAGE_TABLE_DEPTH,
 219                                    num_level);
 220                tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 221                                    RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 222                tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 223                                    DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT,
 224                                    1);
 225                tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 226                                    PDE0_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 227                tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 228                                    VALID_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 229                tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 230                                    READ_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 231                tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 232                                    WRITE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 233                tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 234                                    EXECUTE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 235                tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 236                                    PAGE_TABLE_BLOCK_SIZE,
 237                                    block_size);
 238                /* Send no-retry XNACK on fault to suppress VM fault storm. */
 239                tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 240                                    RETRY_PERMISSION_OR_INVALID_PAGE_FAULT, 0);
 241                WREG32_SOC15_OFFSET(MMHUB, 0, mmVM_CONTEXT1_CNTL, i, tmp);
 242                WREG32_SOC15_OFFSET(MMHUB, 0, mmVM_CONTEXT1_PAGE_TABLE_START_ADDR_LO32, i*2, 0);
 243                WREG32_SOC15_OFFSET(MMHUB, 0, mmVM_CONTEXT1_PAGE_TABLE_START_ADDR_HI32, i*2, 0);
 244                WREG32_SOC15_OFFSET(MMHUB, 0, mmVM_CONTEXT1_PAGE_TABLE_END_ADDR_LO32, i*2,
 245                        lower_32_bits(adev->vm_manager.max_pfn - 1));
 246                WREG32_SOC15_OFFSET(MMHUB, 0, mmVM_CONTEXT1_PAGE_TABLE_END_ADDR_HI32, i*2,
 247                        upper_32_bits(adev->vm_manager.max_pfn - 1));
 248        }
 249}
 250
 251static void mmhub_v1_0_program_invalidation(struct amdgpu_device *adev)
 252{
 253        unsigned i;
 254
 255        for (i = 0; i < 18; ++i) {
 256                WREG32_SOC15_OFFSET(MMHUB, 0, mmVM_INVALIDATE_ENG0_ADDR_RANGE_LO32,
 257                                    2 * i, 0xffffffff);
 258                WREG32_SOC15_OFFSET(MMHUB, 0, mmVM_INVALIDATE_ENG0_ADDR_RANGE_HI32,
 259                                    2 * i, 0x1f);
 260        }
 261}
 262
 263struct pctl_data {
 264        uint32_t index;
 265        uint32_t data;
 266};
 267
 268static const struct pctl_data pctl0_data[] = {
 269        {0x0, 0x7a640},
 270        {0x9, 0x2a64a},
 271        {0xd, 0x2a680},
 272        {0x11, 0x6a684},
 273        {0x19, 0xea68e},
 274        {0x29, 0xa69e},
 275        {0x2b, 0x34a6c0},
 276        {0x61, 0x83a707},
 277        {0xe6, 0x8a7a4},
 278        {0xf0, 0x1a7b8},
 279        {0xf3, 0xfa7cc},
 280        {0x104, 0x17a7dd},
 281        {0x11d, 0xa7dc},
 282        {0x11f, 0x12a7f5},
 283        {0x133, 0xa808},
 284        {0x135, 0x12a810},
 285        {0x149, 0x7a82c}
 286};
 287#define PCTL0_DATA_LEN (ARRAY_SIZE(pctl0_data))
 288
 289#define PCTL0_RENG_EXEC_END_PTR 0x151
 290#define PCTL0_STCTRL_REG_SAVE_RANGE0_BASE  0xa640
 291#define PCTL0_STCTRL_REG_SAVE_RANGE0_LIMIT 0xa833
 292
 293static const struct pctl_data pctl1_data[] = {
 294        {0x0, 0x39a000},
 295        {0x3b, 0x44a040},
 296        {0x81, 0x2a08d},
 297        {0x85, 0x6ba094},
 298        {0xf2, 0x18a100},
 299        {0x10c, 0x4a132},
 300        {0x112, 0xca141},
 301        {0x120, 0x2fa158},
 302        {0x151, 0x17a1d0},
 303        {0x16a, 0x1a1e9},
 304        {0x16d, 0x13a1ec},
 305        {0x182, 0x7a201},
 306        {0x18b, 0x3a20a},
 307        {0x190, 0x7a580},
 308        {0x199, 0xa590},
 309        {0x19b, 0x4a594},
 310        {0x1a1, 0x1a59c},
 311        {0x1a4, 0x7a82c},
 312        {0x1ad, 0xfa7cc},
 313        {0x1be, 0x17a7dd},
 314        {0x1d7, 0x12a810},
 315        {0x1eb, 0x4000a7e1},
 316        {0x1ec, 0x5000a7f5},
 317        {0x1ed, 0x4000a7e2},
 318        {0x1ee, 0x5000a7dc},
 319        {0x1ef, 0x4000a7e3},
 320        {0x1f0, 0x5000a7f6},
 321        {0x1f1, 0x5000a7e4}
 322};
 323#define PCTL1_DATA_LEN (ARRAY_SIZE(pctl1_data))
 324
 325#define PCTL1_RENG_EXEC_END_PTR 0x1f1
 326#define PCTL1_STCTRL_REG_SAVE_RANGE0_BASE  0xa000
 327#define PCTL1_STCTRL_REG_SAVE_RANGE0_LIMIT 0xa20d
 328#define PCTL1_STCTRL_REG_SAVE_RANGE1_BASE  0xa580
 329#define PCTL1_STCTRL_REG_SAVE_RANGE1_LIMIT 0xa59d
 330#define PCTL1_STCTRL_REG_SAVE_RANGE2_BASE  0xa82c
 331#define PCTL1_STCTRL_REG_SAVE_RANGE2_LIMIT 0xa833
 332
 333static void mmhub_v1_0_power_gating_write_save_ranges(struct amdgpu_device *adev)
 334{
 335        uint32_t tmp = 0;
 336
 337        /* PCTL0_STCTRL_REGISTER_SAVE_RANGE0 */
 338        tmp = REG_SET_FIELD(tmp, PCTL0_STCTRL_REGISTER_SAVE_RANGE0,
 339                        STCTRL_REGISTER_SAVE_BASE,
 340                        PCTL0_STCTRL_REG_SAVE_RANGE0_BASE);
 341        tmp = REG_SET_FIELD(tmp, PCTL0_STCTRL_REGISTER_SAVE_RANGE0,
 342                        STCTRL_REGISTER_SAVE_LIMIT,
 343                        PCTL0_STCTRL_REG_SAVE_RANGE0_LIMIT);
 344        WREG32_SOC15(MMHUB, 0, mmPCTL0_STCTRL_REGISTER_SAVE_RANGE0, tmp);
 345
 346        /* PCTL1_STCTRL_REGISTER_SAVE_RANGE0 */
 347        tmp = 0;
 348        tmp = REG_SET_FIELD(tmp, PCTL1_STCTRL_REGISTER_SAVE_RANGE0,
 349                        STCTRL_REGISTER_SAVE_BASE,
 350                        PCTL1_STCTRL_REG_SAVE_RANGE0_BASE);
 351        tmp = REG_SET_FIELD(tmp, PCTL1_STCTRL_REGISTER_SAVE_RANGE0,
 352                        STCTRL_REGISTER_SAVE_LIMIT,
 353                        PCTL1_STCTRL_REG_SAVE_RANGE0_LIMIT);
 354        WREG32_SOC15(MMHUB, 0, mmPCTL1_STCTRL_REGISTER_SAVE_RANGE0, tmp);
 355
 356        /* PCTL1_STCTRL_REGISTER_SAVE_RANGE1 */
 357        tmp = 0;
 358        tmp = REG_SET_FIELD(tmp, PCTL1_STCTRL_REGISTER_SAVE_RANGE1,
 359                        STCTRL_REGISTER_SAVE_BASE,
 360                        PCTL1_STCTRL_REG_SAVE_RANGE1_BASE);
 361        tmp = REG_SET_FIELD(tmp, PCTL1_STCTRL_REGISTER_SAVE_RANGE1,
 362                        STCTRL_REGISTER_SAVE_LIMIT,
 363                        PCTL1_STCTRL_REG_SAVE_RANGE1_LIMIT);
 364        WREG32_SOC15(MMHUB, 0, mmPCTL1_STCTRL_REGISTER_SAVE_RANGE1, tmp);
 365
 366        /* PCTL1_STCTRL_REGISTER_SAVE_RANGE2 */
 367        tmp = 0;
 368        tmp = REG_SET_FIELD(tmp, PCTL1_STCTRL_REGISTER_SAVE_RANGE2,
 369                        STCTRL_REGISTER_SAVE_BASE,
 370                        PCTL1_STCTRL_REG_SAVE_RANGE2_BASE);
 371        tmp = REG_SET_FIELD(tmp, PCTL1_STCTRL_REGISTER_SAVE_RANGE2,
 372                        STCTRL_REGISTER_SAVE_LIMIT,
 373                        PCTL1_STCTRL_REG_SAVE_RANGE2_LIMIT);
 374        WREG32_SOC15(MMHUB, 0, mmPCTL1_STCTRL_REGISTER_SAVE_RANGE2, tmp);
 375}
 376
 377void mmhub_v1_0_initialize_power_gating(struct amdgpu_device *adev)
 378{
 379        uint32_t pctl0_misc = 0;
 380        uint32_t pctl0_reng_execute = 0;
 381        uint32_t pctl1_misc = 0;
 382        uint32_t pctl1_reng_execute = 0;
 383        int i = 0;
 384
 385        if (amdgpu_sriov_vf(adev))
 386                return;
 387
 388        pctl0_misc = RREG32_SOC15(MMHUB, 0, mmPCTL0_MISC);
 389        pctl0_reng_execute = RREG32_SOC15(MMHUB, 0, mmPCTL0_RENG_EXECUTE);
 390        pctl1_misc = RREG32_SOC15(MMHUB, 0, mmPCTL1_MISC);
 391        pctl1_reng_execute = RREG32_SOC15(MMHUB, 0, mmPCTL1_RENG_EXECUTE);
 392
 393        /* Light sleep must be disabled before writing to pctl0 registers */
 394        pctl0_misc &= ~PCTL0_MISC__RENG_MEM_LS_ENABLE_MASK;
 395        WREG32_SOC15(MMHUB, 0, mmPCTL0_MISC, pctl0_misc);
 396
 397        /* Write data used to access ram of register engine */
 398        for (i = 0; i < PCTL0_DATA_LEN; i++) {
 399                WREG32_SOC15(MMHUB, 0, mmPCTL0_RENG_RAM_INDEX,
 400                        pctl0_data[i].index);
 401                WREG32_SOC15(MMHUB, 0, mmPCTL0_RENG_RAM_DATA,
 402                        pctl0_data[i].data);
 403        }
 404
 405        /* Set the reng execute end ptr for pctl0 */
 406        pctl0_reng_execute = REG_SET_FIELD(pctl0_reng_execute,
 407                                        PCTL0_RENG_EXECUTE,
 408                                        RENG_EXECUTE_END_PTR,
 409                                        PCTL0_RENG_EXEC_END_PTR);
 410        WREG32_SOC15(MMHUB, 0, mmPCTL0_RENG_EXECUTE, pctl0_reng_execute);
 411
 412        /* Light sleep must be disabled before writing to pctl1 registers */
 413        pctl1_misc &= ~PCTL1_MISC__RENG_MEM_LS_ENABLE_MASK;
 414        WREG32_SOC15(MMHUB, 0, mmPCTL1_MISC, pctl1_misc);
 415
 416        /* Write data used to access ram of register engine */
 417        for (i = 0; i < PCTL1_DATA_LEN; i++) {
 418                WREG32_SOC15(MMHUB, 0, mmPCTL1_RENG_RAM_INDEX,
 419                        pctl1_data[i].index);
 420                WREG32_SOC15(MMHUB, 0, mmPCTL1_RENG_RAM_DATA,
 421                        pctl1_data[i].data);
 422        }
 423
 424        /* Set the reng execute end ptr for pctl1 */
 425        pctl1_reng_execute = REG_SET_FIELD(pctl1_reng_execute,
 426                                        PCTL1_RENG_EXECUTE,
 427                                        RENG_EXECUTE_END_PTR,
 428                                        PCTL1_RENG_EXEC_END_PTR);
 429        WREG32_SOC15(MMHUB, 0, mmPCTL1_RENG_EXECUTE, pctl1_reng_execute);
 430
 431        mmhub_v1_0_power_gating_write_save_ranges(adev);
 432
 433        /* Re-enable light sleep */
 434        pctl0_misc |= PCTL0_MISC__RENG_MEM_LS_ENABLE_MASK;
 435        WREG32_SOC15(MMHUB, 0, mmPCTL0_MISC, pctl0_misc);
 436        pctl1_misc |= PCTL1_MISC__RENG_MEM_LS_ENABLE_MASK;
 437        WREG32_SOC15(MMHUB, 0, mmPCTL1_MISC, pctl1_misc);
 438}
 439
 440void mmhub_v1_0_update_power_gating(struct amdgpu_device *adev,
 441                                bool enable)
 442{
 443        uint32_t pctl0_reng_execute = 0;
 444        uint32_t pctl1_reng_execute = 0;
 445
 446        if (amdgpu_sriov_vf(adev))
 447                return;
 448
 449        pctl0_reng_execute = RREG32_SOC15(MMHUB, 0, mmPCTL0_RENG_EXECUTE);
 450        pctl1_reng_execute = RREG32_SOC15(MMHUB, 0, mmPCTL1_RENG_EXECUTE);
 451
 452        if (enable && adev->pg_flags & AMD_PG_SUPPORT_MMHUB) {
 453                pctl0_reng_execute = REG_SET_FIELD(pctl0_reng_execute,
 454                                                PCTL0_RENG_EXECUTE,
 455                                                RENG_EXECUTE_ON_PWR_UP, 1);
 456                pctl0_reng_execute = REG_SET_FIELD(pctl0_reng_execute,
 457                                                PCTL0_RENG_EXECUTE,
 458                                                RENG_EXECUTE_ON_REG_UPDATE, 1);
 459                WREG32_SOC15(MMHUB, 0, mmPCTL0_RENG_EXECUTE, pctl0_reng_execute);
 460
 461                pctl1_reng_execute = REG_SET_FIELD(pctl1_reng_execute,
 462                                                PCTL1_RENG_EXECUTE,
 463                                                RENG_EXECUTE_ON_PWR_UP, 1);
 464                pctl1_reng_execute = REG_SET_FIELD(pctl1_reng_execute,
 465                                                PCTL1_RENG_EXECUTE,
 466                                                RENG_EXECUTE_ON_REG_UPDATE, 1);
 467                WREG32_SOC15(MMHUB, 0, mmPCTL1_RENG_EXECUTE, pctl1_reng_execute);
 468
 469        } else {
 470                pctl0_reng_execute = REG_SET_FIELD(pctl0_reng_execute,
 471                                                PCTL0_RENG_EXECUTE,
 472                                                RENG_EXECUTE_ON_PWR_UP, 0);
 473                pctl0_reng_execute = REG_SET_FIELD(pctl0_reng_execute,
 474                                                PCTL0_RENG_EXECUTE,
 475                                                RENG_EXECUTE_ON_REG_UPDATE, 0);
 476                WREG32_SOC15(MMHUB, 0, mmPCTL0_RENG_EXECUTE, pctl0_reng_execute);
 477
 478                pctl1_reng_execute = REG_SET_FIELD(pctl1_reng_execute,
 479                                                PCTL1_RENG_EXECUTE,
 480                                                RENG_EXECUTE_ON_PWR_UP, 0);
 481                pctl1_reng_execute = REG_SET_FIELD(pctl1_reng_execute,
 482                                                PCTL1_RENG_EXECUTE,
 483                                                RENG_EXECUTE_ON_REG_UPDATE, 0);
 484                WREG32_SOC15(MMHUB, 0, mmPCTL1_RENG_EXECUTE, pctl1_reng_execute);
 485        }
 486}
 487
 488int mmhub_v1_0_gart_enable(struct amdgpu_device *adev)
 489{
 490        if (amdgpu_sriov_vf(adev)) {
 491                /*
 492                 * MC_VM_FB_LOCATION_BASE/TOP is NULL for VF, becuase they are
 493                 * VF copy registers so vbios post doesn't program them, for
 494                 * SRIOV driver need to program them
 495                 */
 496                WREG32_SOC15(MMHUB, 0, mmMC_VM_FB_LOCATION_BASE,
 497                             adev->mc.vram_start >> 24);
 498                WREG32_SOC15(MMHUB, 0, mmMC_VM_FB_LOCATION_TOP,
 499                             adev->mc.vram_end >> 24);
 500        }
 501
 502        /* GART Enable. */
 503        mmhub_v1_0_init_gart_aperture_regs(adev);
 504        mmhub_v1_0_init_system_aperture_regs(adev);
 505        mmhub_v1_0_init_tlb_regs(adev);
 506        mmhub_v1_0_init_cache_regs(adev);
 507
 508        mmhub_v1_0_enable_system_domain(adev);
 509        mmhub_v1_0_disable_identity_aperture(adev);
 510        mmhub_v1_0_setup_vmid_config(adev);
 511        mmhub_v1_0_program_invalidation(adev);
 512
 513        return 0;
 514}
 515
 516void mmhub_v1_0_gart_disable(struct amdgpu_device *adev)
 517{
 518        u32 tmp;
 519        u32 i;
 520
 521        /* Disable all tables */
 522        for (i = 0; i < 16; i++)
 523                WREG32_SOC15_OFFSET(MMHUB, 0, mmVM_CONTEXT0_CNTL, i, 0);
 524
 525        /* Setup TLB control */
 526        tmp = RREG32_SOC15(MMHUB, 0, mmMC_VM_MX_L1_TLB_CNTL);
 527        tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 0);
 528        tmp = REG_SET_FIELD(tmp,
 529                                MC_VM_MX_L1_TLB_CNTL,
 530                                ENABLE_ADVANCED_DRIVER_MODEL,
 531                                0);
 532        WREG32_SOC15(MMHUB, 0, mmMC_VM_MX_L1_TLB_CNTL, tmp);
 533
 534        /* Setup L2 cache */
 535        tmp = RREG32_SOC15(MMHUB, 0, mmVM_L2_CNTL);
 536        tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_CACHE, 0);
 537        WREG32_SOC15(MMHUB, 0, mmVM_L2_CNTL, tmp);
 538        WREG32_SOC15(MMHUB, 0, mmVM_L2_CNTL3, 0);
 539}
 540
 541/**
 542 * mmhub_v1_0_set_fault_enable_default - update GART/VM fault handling
 543 *
 544 * @adev: amdgpu_device pointer
 545 * @value: true redirects VM faults to the default page
 546 */
 547void mmhub_v1_0_set_fault_enable_default(struct amdgpu_device *adev, bool value)
 548{
 549        u32 tmp;
 550        tmp = RREG32_SOC15(MMHUB, 0, mmVM_L2_PROTECTION_FAULT_CNTL);
 551        tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL,
 552                        RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 553        tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL,
 554                        PDE0_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 555        tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL,
 556                        PDE1_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 557        tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL,
 558                        PDE2_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 559        tmp = REG_SET_FIELD(tmp,
 560                        VM_L2_PROTECTION_FAULT_CNTL,
 561                        TRANSLATE_FURTHER_PROTECTION_FAULT_ENABLE_DEFAULT,
 562                        value);
 563        tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL,
 564                        NACK_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 565        tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL,
 566                        DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 567        tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL,
 568                        VALID_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 569        tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL,
 570                        READ_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 571        tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL,
 572                        WRITE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 573        tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL,
 574                        EXECUTE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 575        if (!value) {
 576                tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL,
 577                                CRASH_ON_NO_RETRY_FAULT, 1);
 578                tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL,
 579                                CRASH_ON_RETRY_FAULT, 1);
 580    }
 581
 582        WREG32_SOC15(MMHUB, 0, mmVM_L2_PROTECTION_FAULT_CNTL, tmp);
 583}
 584
 585void mmhub_v1_0_init(struct amdgpu_device *adev)
 586{
 587        struct amdgpu_vmhub *hub = &adev->vmhub[AMDGPU_MMHUB];
 588
 589        hub->ctx0_ptb_addr_lo32 =
 590                SOC15_REG_OFFSET(MMHUB, 0,
 591                                 mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_LO32);
 592        hub->ctx0_ptb_addr_hi32 =
 593                SOC15_REG_OFFSET(MMHUB, 0,
 594                                 mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_HI32);
 595        hub->vm_inv_eng0_req =
 596                SOC15_REG_OFFSET(MMHUB, 0, mmVM_INVALIDATE_ENG0_REQ);
 597        hub->vm_inv_eng0_ack =
 598                SOC15_REG_OFFSET(MMHUB, 0, mmVM_INVALIDATE_ENG0_ACK);
 599        hub->vm_context0_cntl =
 600                SOC15_REG_OFFSET(MMHUB, 0, mmVM_CONTEXT0_CNTL);
 601        hub->vm_l2_pro_fault_status =
 602                SOC15_REG_OFFSET(MMHUB, 0, mmVM_L2_PROTECTION_FAULT_STATUS);
 603        hub->vm_l2_pro_fault_cntl =
 604                SOC15_REG_OFFSET(MMHUB, 0, mmVM_L2_PROTECTION_FAULT_CNTL);
 605
 606}
 607
 608static void mmhub_v1_0_update_medium_grain_clock_gating(struct amdgpu_device *adev,
 609                                                        bool enable)
 610{
 611        uint32_t def, data, def1, data1, def2 = 0, data2 = 0;
 612
 613        def  = data  = RREG32_SOC15(MMHUB, 0, mmATC_L2_MISC_CG);
 614
 615        if (adev->asic_type != CHIP_RAVEN) {
 616                def1 = data1 = RREG32_SOC15(MMHUB, 0, mmDAGB0_CNTL_MISC2);
 617                def2 = data2 = RREG32_SOC15(MMHUB, 0, mmDAGB1_CNTL_MISC2);
 618        } else
 619                def1 = data1 = RREG32_SOC15(MMHUB, 0, mmDAGB0_CNTL_MISC2_RV);
 620
 621        if (enable && (adev->cg_flags & AMD_CG_SUPPORT_MC_MGCG)) {
 622                data |= ATC_L2_MISC_CG__ENABLE_MASK;
 623
 624                data1 &= ~(DAGB0_CNTL_MISC2__DISABLE_WRREQ_CG_MASK |
 625                           DAGB0_CNTL_MISC2__DISABLE_WRRET_CG_MASK |
 626                           DAGB0_CNTL_MISC2__DISABLE_RDREQ_CG_MASK |
 627                           DAGB0_CNTL_MISC2__DISABLE_RDRET_CG_MASK |
 628                           DAGB0_CNTL_MISC2__DISABLE_TLBWR_CG_MASK |
 629                           DAGB0_CNTL_MISC2__DISABLE_TLBRD_CG_MASK);
 630
 631                if (adev->asic_type != CHIP_RAVEN)
 632                        data2 &= ~(DAGB1_CNTL_MISC2__DISABLE_WRREQ_CG_MASK |
 633                                   DAGB1_CNTL_MISC2__DISABLE_WRRET_CG_MASK |
 634                                   DAGB1_CNTL_MISC2__DISABLE_RDREQ_CG_MASK |
 635                                   DAGB1_CNTL_MISC2__DISABLE_RDRET_CG_MASK |
 636                                   DAGB1_CNTL_MISC2__DISABLE_TLBWR_CG_MASK |
 637                                   DAGB1_CNTL_MISC2__DISABLE_TLBRD_CG_MASK);
 638        } else {
 639                data &= ~ATC_L2_MISC_CG__ENABLE_MASK;
 640
 641                data1 |= (DAGB0_CNTL_MISC2__DISABLE_WRREQ_CG_MASK |
 642                          DAGB0_CNTL_MISC2__DISABLE_WRRET_CG_MASK |
 643                          DAGB0_CNTL_MISC2__DISABLE_RDREQ_CG_MASK |
 644                          DAGB0_CNTL_MISC2__DISABLE_RDRET_CG_MASK |
 645                          DAGB0_CNTL_MISC2__DISABLE_TLBWR_CG_MASK |
 646                          DAGB0_CNTL_MISC2__DISABLE_TLBRD_CG_MASK);
 647
 648                if (adev->asic_type != CHIP_RAVEN)
 649                        data2 |= (DAGB1_CNTL_MISC2__DISABLE_WRREQ_CG_MASK |
 650                                  DAGB1_CNTL_MISC2__DISABLE_WRRET_CG_MASK |
 651                                  DAGB1_CNTL_MISC2__DISABLE_RDREQ_CG_MASK |
 652                                  DAGB1_CNTL_MISC2__DISABLE_RDRET_CG_MASK |
 653                                  DAGB1_CNTL_MISC2__DISABLE_TLBWR_CG_MASK |
 654                                  DAGB1_CNTL_MISC2__DISABLE_TLBRD_CG_MASK);
 655        }
 656
 657        if (def != data)
 658                WREG32_SOC15(MMHUB, 0, mmATC_L2_MISC_CG, data);
 659
 660        if (def1 != data1) {
 661                if (adev->asic_type != CHIP_RAVEN)
 662                        WREG32_SOC15(MMHUB, 0, mmDAGB0_CNTL_MISC2, data1);
 663                else
 664                        WREG32_SOC15(MMHUB, 0, mmDAGB0_CNTL_MISC2_RV, data1);
 665        }
 666
 667        if (adev->asic_type != CHIP_RAVEN && def2 != data2)
 668                WREG32_SOC15(MMHUB, 0, mmDAGB1_CNTL_MISC2, data2);
 669}
 670
 671static void athub_update_medium_grain_clock_gating(struct amdgpu_device *adev,
 672                                                   bool enable)
 673{
 674        uint32_t def, data;
 675
 676        def = data = RREG32_SOC15(ATHUB, 0, mmATHUB_MISC_CNTL);
 677
 678        if (enable && (adev->cg_flags & AMD_CG_SUPPORT_MC_MGCG))
 679                data |= ATHUB_MISC_CNTL__CG_ENABLE_MASK;
 680        else
 681                data &= ~ATHUB_MISC_CNTL__CG_ENABLE_MASK;
 682
 683        if (def != data)
 684                WREG32_SOC15(ATHUB, 0, mmATHUB_MISC_CNTL, data);
 685}
 686
 687static void mmhub_v1_0_update_medium_grain_light_sleep(struct amdgpu_device *adev,
 688                                                       bool enable)
 689{
 690        uint32_t def, data;
 691
 692        def = data = RREG32_SOC15(MMHUB, 0, mmATC_L2_MISC_CG);
 693
 694        if (enable && (adev->cg_flags & AMD_CG_SUPPORT_MC_LS))
 695                data |= ATC_L2_MISC_CG__MEM_LS_ENABLE_MASK;
 696        else
 697                data &= ~ATC_L2_MISC_CG__MEM_LS_ENABLE_MASK;
 698
 699        if (def != data)
 700                WREG32_SOC15(MMHUB, 0, mmATC_L2_MISC_CG, data);
 701}
 702
 703static void athub_update_medium_grain_light_sleep(struct amdgpu_device *adev,
 704                                                  bool enable)
 705{
 706        uint32_t def, data;
 707
 708        def = data = RREG32_SOC15(ATHUB, 0, mmATHUB_MISC_CNTL);
 709
 710        if (enable && (adev->cg_flags & AMD_CG_SUPPORT_MC_LS) &&
 711            (adev->cg_flags & AMD_CG_SUPPORT_HDP_LS))
 712                data |= ATHUB_MISC_CNTL__CG_MEM_LS_ENABLE_MASK;
 713        else
 714                data &= ~ATHUB_MISC_CNTL__CG_MEM_LS_ENABLE_MASK;
 715
 716        if(def != data)
 717                WREG32_SOC15(ATHUB, 0, mmATHUB_MISC_CNTL, data);
 718}
 719
 720int mmhub_v1_0_set_clockgating(struct amdgpu_device *adev,
 721                               enum amd_clockgating_state state)
 722{
 723        if (amdgpu_sriov_vf(adev))
 724                return 0;
 725
 726        switch (adev->asic_type) {
 727        case CHIP_VEGA10:
 728        case CHIP_RAVEN:
 729                mmhub_v1_0_update_medium_grain_clock_gating(adev,
 730                                state == AMD_CG_STATE_GATE ? true : false);
 731                athub_update_medium_grain_clock_gating(adev,
 732                                state == AMD_CG_STATE_GATE ? true : false);
 733                mmhub_v1_0_update_medium_grain_light_sleep(adev,
 734                                state == AMD_CG_STATE_GATE ? true : false);
 735                athub_update_medium_grain_light_sleep(adev,
 736                                state == AMD_CG_STATE_GATE ? true : false);
 737                break;
 738        default:
 739                break;
 740        }
 741
 742        return 0;
 743}
 744
 745void mmhub_v1_0_get_clockgating(struct amdgpu_device *adev, u32 *flags)
 746{
 747        int data;
 748
 749        if (amdgpu_sriov_vf(adev))
 750                *flags = 0;
 751
 752        /* AMD_CG_SUPPORT_MC_MGCG */
 753        data = RREG32_SOC15(ATHUB, 0, mmATHUB_MISC_CNTL);
 754        if (data & ATHUB_MISC_CNTL__CG_ENABLE_MASK)
 755                *flags |= AMD_CG_SUPPORT_MC_MGCG;
 756
 757        /* AMD_CG_SUPPORT_MC_LS */
 758        data = RREG32_SOC15(MMHUB, 0, mmATC_L2_MISC_CG);
 759        if (data & ATC_L2_MISC_CG__MEM_LS_ENABLE_MASK)
 760                *flags |= AMD_CG_SUPPORT_MC_LS;
 761}
 762