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

   1 /*
   2  * Copyright 2018 Advanced Micro Devices, Inc.
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice shall be included in
  12  * all copies or substantial portions of the Software.
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  20  * OTHER DEALINGS IN THE SOFTWARE.
  21  *
  22  */
  23
  24 #include "amdgpu.h"
  25 #include "amdgpu_discovery.h"
  26 #include "soc15_hw_ip.h"
  27 #include "discovery.h"
  28
  29 #define mmRCC_CONFIG_MEMSIZE    0xde3
  30 #define mmMM_INDEX              0x0
  31 #define mmMM_INDEX_HI           0x6
  32 #define mmMM_DATA               0x1
  33 #define HW_ID_MAX               300
  34
  35 static const char *hw_id_names[HW_ID_MAX] = {
  36         [MP1_HWID]              = "MP1",
  37         [MP2_HWID]              = "MP2",
  38         [THM_HWID]              = "THM",
  39         [SMUIO_HWID]            = "SMUIO",
  40         [FUSE_HWID]             = "FUSE",
  41         [CLKA_HWID]             = "CLKA",
  42         [PWR_HWID]              = "PWR",
  43         [GC_HWID]               = "GC",
  44         [UVD_HWID]              = "UVD",
  45         [AUDIO_AZ_HWID]         = "AUDIO_AZ",
  46         [ACP_HWID]              = "ACP",
  47         [DCI_HWID]              = "DCI",
  48         [DMU_HWID]              = "DMU",
  49         [DCO_HWID]              = "DCO",
  50         [DIO_HWID]              = "DIO",
  51         [XDMA_HWID]             = "XDMA",
  52         [DCEAZ_HWID]            = "DCEAZ",
  53         [DAZ_HWID]              = "DAZ",
  54         [SDPMUX_HWID]           = "SDPMUX",
  55         [NTB_HWID]              = "NTB",
  56         [IOHC_HWID]             = "IOHC",
  57         [L2IMU_HWID]            = "L2IMU",
  58         [VCE_HWID]              = "VCE",
  59         [MMHUB_HWID]            = "MMHUB",
  60         [ATHUB_HWID]            = "ATHUB",
  61         [DBGU_NBIO_HWID]        = "DBGU_NBIO",
  62         [DFX_HWID]              = "DFX",
  63         [DBGU0_HWID]            = "DBGU0",
  64         [DBGU1_HWID]            = "DBGU1",
  65         [OSSSYS_HWID]           = "OSSSYS",
  66         [HDP_HWID]              = "HDP",
  67         [SDMA0_HWID]            = "SDMA0",
  68         [SDMA1_HWID]            = "SDMA1",
  69         [ISP_HWID]              = "ISP",
  70         [DBGU_IO_HWID]          = "DBGU_IO",
  71         [DF_HWID]               = "DF",
  72         [CLKB_HWID]             = "CLKB",
  73         [FCH_HWID]              = "FCH",
  74         [DFX_DAP_HWID]          = "DFX_DAP",
  75         [L1IMU_PCIE_HWID]       = "L1IMU_PCIE",
  76         [L1IMU_NBIF_HWID]       = "L1IMU_NBIF",
  77         [L1IMU_IOAGR_HWID]      = "L1IMU_IOAGR",
  78         [L1IMU3_HWID]           = "L1IMU3",
  79         [L1IMU4_HWID]           = "L1IMU4",
  80         [L1IMU5_HWID]           = "L1IMU5",
  81         [L1IMU6_HWID]           = "L1IMU6",
  82         [L1IMU7_HWID]           = "L1IMU7",
  83         [L1IMU8_HWID]           = "L1IMU8",
  84         [L1IMU9_HWID]           = "L1IMU9",
  85         [L1IMU10_HWID]          = "L1IMU10",
  86         [L1IMU11_HWID]          = "L1IMU11",
  87         [L1IMU12_HWID]          = "L1IMU12",
  88         [L1IMU13_HWID]          = "L1IMU13",
  89         [L1IMU14_HWID]          = "L1IMU14",
  90         [L1IMU15_HWID]          = "L1IMU15",
  91         [WAFLC_HWID]            = "WAFLC",
  92         [FCH_USB_PD_HWID]       = "FCH_USB_PD",
  93         [PCIE_HWID]             = "PCIE",
  94         [PCS_HWID]              = "PCS",
  95         [DDCL_HWID]             = "DDCL",
  96         [SST_HWID]              = "SST",
  97         [IOAGR_HWID]            = "IOAGR",
  98         [NBIF_HWID]             = "NBIF",
  99         [IOAPIC_HWID]           = "IOAPIC",
 100         [SYSTEMHUB_HWID]        = "SYSTEMHUB",
 101         [NTBCCP_HWID]           = "NTBCCP",
 102         [UMC_HWID]              = "UMC",
 103         [SATA_HWID]             = "SATA",
 104         [USB_HWID]              = "USB",
 105         [CCXSEC_HWID]           = "CCXSEC",
 106         [XGMI_HWID]             = "XGMI",
 107         [XGBE_HWID]             = "XGBE",
 108         [MP0_HWID]              = "MP0",
 109 };
 110
 111 static int hw_id_map[MAX_HWIP] = {
 112         [GC_HWIP]       = GC_HWID,
 113         [HDP_HWIP]      = HDP_HWID,
 114         [SDMA0_HWIP]    = SDMA0_HWID,
 115         [SDMA1_HWIP]    = SDMA1_HWID,
 116         [MMHUB_HWIP]    = MMHUB_HWID,
 117         [ATHUB_HWIP]    = ATHUB_HWID,
 118         [NBIO_HWIP]     = NBIF_HWID,
 119         [MP0_HWIP]      = MP0_HWID,
 120         [MP1_HWIP]      = MP1_HWID,
 121         [UVD_HWIP]      = UVD_HWID,
 122         [VCE_HWIP]      = VCE_HWID,
 123         [DF_HWIP]       = DF_HWID,
 124         [DCE_HWIP]      = DMU_HWID,
 125         [OSSSYS_HWIP]   = OSSSYS_HWID,
 126         [SMUIO_HWIP]    = SMUIO_HWID,
 127         [PWR_HWIP]      = PWR_HWID,
 128         [NBIF_HWIP]     = NBIF_HWID,
 129         [THM_HWIP]      = THM_HWID,
 130         [CLK_HWIP]      = CLKA_HWID,
 131         [UMC_HWIP]      = UMC_HWID,
 132 };
 133
 134 static int amdgpu_discovery_read_binary(struct amdgpu_device *adev, uint8_t *binary)
 135 {
 136         uint64_t vram_size = (uint64_t)RREG32(mmRCC_CONFIG_MEMSIZE) << 20;
 137         uint64_t pos = vram_size - DISCOVERY_TMR_OFFSET;
 138
 139         amdgpu_device_vram_access(adev, pos, (uint32_t *)binary,
 140                                   adev->mman.discovery_tmr_size, false);
 141         return 0;
 142 }
 143
 144 static uint16_t amdgpu_discovery_calculate_checksum(uint8_t *data, uint32_t size)
 145 {
 146         uint16_t checksum = 0;
 147         int i;
 148
 149         for (i = 0; i < size; i++)
 150                 checksum += data[i];
 151
 152         return checksum;
 153 }
 154
 155 static inline bool amdgpu_discovery_verify_checksum(uint8_t *data, uint32_t size,
 156                                                     uint16_t expected)
 157 {
 158         return !!(amdgpu_discovery_calculate_checksum(data, size) == expected);
 159 }
 160
 161 static int amdgpu_discovery_init(struct amdgpu_device *adev)
 162 {
 163         struct table_info *info;
 164         struct binary_header *bhdr;
 165         struct ip_discovery_header *ihdr;
 166         struct gpu_info_header *ghdr;
 167         uint16_t offset;
 168         uint16_t size;
 169         uint16_t checksum;
 170         int r;
 171
 172         adev->mman.discovery_tmr_size = DISCOVERY_TMR_SIZE;
 173         adev->mman.discovery_bin = kzalloc(adev->mman.discovery_tmr_size, GFP_KERNEL);
 174         if (!adev->mman.discovery_bin)
 175                 return -ENOMEM;
 176
 177         r = amdgpu_discovery_read_binary(adev, adev->mman.discovery_bin);
 178         if (r) {
 179                 DRM_ERROR("failed to read ip discovery binary\n");
 180                 goto out;
 181         }
 182
 183         bhdr = (struct binary_header *)adev->mman.discovery_bin;
 184
 185         if (le32_to_cpu(bhdr->binary_signature) != BINARY_SIGNATURE) {
 186                 DRM_ERROR("invalid ip discovery binary signature\n");
 187                 r = -EINVAL;
 188                 goto out;
 189         }
 190
 191         offset = offsetof(struct binary_header, binary_checksum) +
 192                 sizeof(bhdr->binary_checksum);
 193         size = bhdr->binary_size - offset;
 194         checksum = bhdr->binary_checksum;
 195
 196         if (!amdgpu_discovery_verify_checksum(adev->mman.discovery_bin + offset,
 197                                               size, checksum)) {
 198                 DRM_ERROR("invalid ip discovery binary checksum\n");
 199                 r = -EINVAL;
 200                 goto out;
 201         }
 202
 203         info = &bhdr->table_list[IP_DISCOVERY];
 204         offset = le16_to_cpu(info->offset);
 205         checksum = le16_to_cpu(info->checksum);
 206         ihdr = (struct ip_discovery_header *)(adev->mman.discovery_bin + offset);
 207
 208         if (le32_to_cpu(ihdr->signature) != DISCOVERY_TABLE_SIGNATURE) {
 209                 DRM_ERROR("invalid ip discovery data table signature\n");
 210                 r = -EINVAL;
 211                 goto out;
 212         }
 213
 214         if (!amdgpu_discovery_verify_checksum(adev->mman.discovery_bin + offset,
 215                                               ihdr->size, checksum)) {
 216                 DRM_ERROR("invalid ip discovery data table checksum\n");
 217                 r = -EINVAL;
 218                 goto out;
 219         }
 220
 221         info = &bhdr->table_list[GC];
 222         offset = le16_to_cpu(info->offset);
 223         checksum = le16_to_cpu(info->checksum);
 224         ghdr = (struct gpu_info_header *)(adev->mman.discovery_bin + offset);
 225
 226         if (!amdgpu_discovery_verify_checksum(adev->mman.discovery_bin + offset,
 227                                               ghdr->size, checksum)) {
 228                 DRM_ERROR("invalid gc data table checksum\n");
 229                 r = -EINVAL;
 230                 goto out;
 231         }
 232
 233         return 0;
 234
 235 out:
 236         kfree(adev->mman.discovery_bin);
 237         adev->mman.discovery_bin = NULL;
 238
 239         return r;
 240 }
 241
 242 void amdgpu_discovery_fini(struct amdgpu_device *adev)
 243 {
 244         kfree(adev->mman.discovery_bin);
 245         adev->mman.discovery_bin = NULL;
 246 }
 247
 248 int amdgpu_discovery_reg_base_init(struct amdgpu_device *adev)
 249 {
 250         struct binary_header *bhdr;
 251         struct ip_discovery_header *ihdr;
 252         struct die_header *dhdr;
 253         struct ip *ip;
 254         uint16_t die_offset;
 255         uint16_t ip_offset;
 256         uint16_t num_dies;
 257         uint16_t num_ips;
 258         uint8_t num_base_address;
 259         int hw_ip;
 260         int i, j, k;
 261         int r;
 262
 263         r = amdgpu_discovery_init(adev);
 264         if (r) {
 265                 DRM_ERROR("amdgpu_discovery_init failed\n");
 266                 return r;
 267         }
 268
 269         bhdr = (struct binary_header *)adev->mman.discovery_bin;
 270         ihdr = (struct ip_discovery_header *)(adev->mman.discovery_bin +
 271                         le16_to_cpu(bhdr->table_list[IP_DISCOVERY].offset));
 272         num_dies = le16_to_cpu(ihdr->num_dies);
 273
 274         DRM_DEBUG("number of dies: %d\n", num_dies);
 275
 276         for (i = 0; i < num_dies; i++) {
 277                 die_offset = le16_to_cpu(ihdr->die_info[i].die_offset);
 278                 dhdr = (struct die_header *)(adev->mman.discovery_bin + die_offset);
 279                 num_ips = le16_to_cpu(dhdr->num_ips);
 280                 ip_offset = die_offset + sizeof(*dhdr);
 281
 282                 if (le16_to_cpu(dhdr->die_id) != i) {
 283                         DRM_ERROR("invalid die id %d, expected %d\n",
 284                                         le16_to_cpu(dhdr->die_id), i);
 285                         return -EINVAL;
 286                 }
 287
 288                 DRM_DEBUG("number of hardware IPs on die%d: %d\n",
 289                                 le16_to_cpu(dhdr->die_id), num_ips);
 290
 291                 for (j = 0; j < num_ips; j++) {
 292                         ip = (struct ip *)(adev->mman.discovery_bin + ip_offset);
 293                         num_base_address = ip->num_base_address;
 294
 295                         DRM_DEBUG("%s(%d) #%d v%d.%d.%d:\n",
 296                                   hw_id_names[le16_to_cpu(ip->hw_id)],
 297                                   le16_to_cpu(ip->hw_id),
 298                                   ip->number_instance,
 299                                   ip->major, ip->minor,
 300                                   ip->revision);
 301
 302                         for (k = 0; k < num_base_address; k++) {
 303                                 /*
 304                                  * convert the endianness of base addresses in place,
 305                                  * so that we don't need to convert them when accessing adev->reg_offset.
 306                                  */
 307                                 ip->base_address[k] = le32_to_cpu(ip->base_address[k]);
 308                                 DRM_DEBUG("\t0x%08x\n", ip->base_address[k]);
 309                         }
 310
 311                         for (hw_ip = 0; hw_ip < MAX_HWIP; hw_ip++) {
 312                                 if (hw_id_map[hw_ip] == le16_to_cpu(ip->hw_id)) {
 313                                         DRM_DEBUG("set register base offset for %s\n",
 314                                                         hw_id_names[le16_to_cpu(ip->hw_id)]);
 315                                         adev->reg_offset[hw_ip][ip->number_instance] =
 316                                                 ip->base_address;
 317                                 }
 318
 319                         }
 320
 321                         ip_offset += sizeof(*ip) + 4 * (ip->num_base_address - 1);
 322                 }
 323         }
 324
 325         return 0;
 326 }
 327
 328 int amdgpu_discovery_get_ip_version(struct amdgpu_device *adev, int hw_id,
 329                                     int *major, int *minor, int *revision)
 330 {
 331         struct binary_header *bhdr;
 332         struct ip_discovery_header *ihdr;
 333         struct die_header *dhdr;
 334         struct ip *ip;
 335         uint16_t die_offset;
 336         uint16_t ip_offset;
 337         uint16_t num_dies;
 338         uint16_t num_ips;
 339         int i, j;
 340
 341         if (!adev->mman.discovery_bin) {
 342                 DRM_ERROR("ip discovery uninitialized\n");
 343                 return -EINVAL;
 344         }
 345
 346         bhdr = (struct binary_header *)adev->mman.discovery_bin;
 347         ihdr = (struct ip_discovery_header *)(adev->mman.discovery_bin +
 348                         le16_to_cpu(bhdr->table_list[IP_DISCOVERY].offset));
 349         num_dies = le16_to_cpu(ihdr->num_dies);
 350
 351         for (i = 0; i < num_dies; i++) {
 352                 die_offset = le16_to_cpu(ihdr->die_info[i].die_offset);
 353                 dhdr = (struct die_header *)(adev->mman.discovery_bin + die_offset);
 354                 num_ips = le16_to_cpu(dhdr->num_ips);
 355                 ip_offset = die_offset + sizeof(*dhdr);
 356
 357                 for (j = 0; j < num_ips; j++) {
 358                         ip = (struct ip *)(adev->mman.discovery_bin + ip_offset);
 359
 360                         if (le16_to_cpu(ip->hw_id) == hw_id) {
 361                                 if (major)
 362                                         *major = ip->major;
 363                                 if (minor)
 364                                         *minor = ip->minor;
 365                                 if (revision)
 366                                         *revision = ip->revision;
 367                                 return 0;
 368                         }
 369                         ip_offset += sizeof(*ip) + 4 * (ip->num_base_address - 1);
 370                 }
 371         }
 372
 373         return -EINVAL;
 374 }
 375
 376 void amdgpu_discovery_harvest_ip(struct amdgpu_device *adev)
 377 {
 378         struct binary_header *bhdr;
 379         struct harvest_table *harvest_info;
 380         int i;
 381
 382         bhdr = (struct binary_header *)adev->mman.discovery_bin;
 383         harvest_info = (struct harvest_table *)(adev->mman.discovery_bin +
 384                         le16_to_cpu(bhdr->table_list[HARVEST_INFO].offset));
 385
 386         for (i = 0; i < 32; i++) {
 387                 if (le32_to_cpu(harvest_info->list[i].hw_id) == 0)
 388                         break;
 389
 390                 switch (le32_to_cpu(harvest_info->list[i].hw_id)) {
 391                 case VCN_HWID:
 392                         adev->harvest_ip_mask |= AMD_HARVEST_IP_VCN_MASK;
 393                         adev->harvest_ip_mask |= AMD_HARVEST_IP_JPEG_MASK;
 394                         break;
 395                 case DMU_HWID:
 396                         adev->harvest_ip_mask |= AMD_HARVEST_IP_DMU_MASK;
 397                         break;
 398                 default:
 399                         break;
 400                 }
 401         }
 402 }
 403
 404 int amdgpu_discovery_get_gfx_info(struct amdgpu_device *adev)
 405 {
 406         struct binary_header *bhdr;
 407         struct gc_info_v1_0 *gc_info;
 408
 409         if (!adev->mman.discovery_bin) {
 410                 DRM_ERROR("ip discovery uninitialized\n");
 411                 return -EINVAL;
 412         }
 413
 414         bhdr = (struct binary_header *)adev->mman.discovery_bin;
 415         gc_info = (struct gc_info_v1_0 *)(adev->mman.discovery_bin +
 416                         le16_to_cpu(bhdr->table_list[GC].offset));
 417
 418         adev->gfx.config.max_shader_engines = le32_to_cpu(gc_info->gc_num_se);
 419         adev->gfx.config.max_cu_per_sh = 2 * (le32_to_cpu(gc_info->gc_num_wgp0_per_sa) +
 420                                               le32_to_cpu(gc_info->gc_num_wgp1_per_sa));
 421         adev->gfx.config.max_sh_per_se = le32_to_cpu(gc_info->gc_num_sa_per_se);
 422         adev->gfx.config.max_backends_per_se = le32_to_cpu(gc_info->gc_num_rb_per_se);
 423         adev->gfx.config.max_texture_channel_caches = le32_to_cpu(gc_info->gc_num_gl2c);
 424         adev->gfx.config.max_gprs = le32_to_cpu(gc_info->gc_num_gprs);
 425         adev->gfx.config.max_gs_threads = le32_to_cpu(gc_info->gc_num_max_gs_thds);
 426         adev->gfx.config.gs_vgt_table_depth = le32_to_cpu(gc_info->gc_gs_table_depth);
 427         adev->gfx.config.gs_prim_buffer_depth = le32_to_cpu(gc_info->gc_gsprim_buff_depth);
 428         adev->gfx.config.double_offchip_lds_buf = le32_to_cpu(gc_info->gc_double_offchip_lds_buffer);
 429         adev->gfx.cu_info.wave_front_size = le32_to_cpu(gc_info->gc_wave_size);
 430         adev->gfx.cu_info.max_waves_per_simd = le32_to_cpu(gc_info->gc_max_waves_per_simd);
 431         adev->gfx.cu_info.max_scratch_slots_per_cu = le32_to_cpu(gc_info->gc_max_scratch_slots_per_cu);
 432         adev->gfx.cu_info.lds_size = le32_to_cpu(gc_info->gc_lds_size);
 433         adev->gfx.config.num_sc_per_sh = le32_to_cpu(gc_info->gc_num_sc_per_se) /
 434                                          le32_to_cpu(gc_info->gc_num_sa_per_se);
 435         adev->gfx.config.num_packer_per_sc = le32_to_cpu(gc_info->gc_num_packer_per_sc);
 436
 437         return 0;
 438 }