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 * Author: Monk.liu@amd.com 23 */ 24 #ifndef AMDGPU_VIRT_H 25 #define AMDGPU_VIRT_H 26 27 #include "amdgv_sriovmsg.h" 28 29 #define AMDGPU_SRIOV_CAPS_SRIOV_VBIOS (1 << 0) /* vBIOS is sr-iov ready */ 30 #define AMDGPU_SRIOV_CAPS_ENABLE_IOV (1 << 1) /* sr-iov is enabled on this GPU */ 31 #define AMDGPU_SRIOV_CAPS_IS_VF (1 << 2) /* this GPU is a virtual function */ 32 #define AMDGPU_PASSTHROUGH_MODE (1 << 3) /* thw whole GPU is pass through for VM */ 33 #define AMDGPU_SRIOV_CAPS_RUNTIME (1 << 4) /* is out of full access mode */ 34 #define AMDGPU_VF_MMIO_ACCESS_PROTECT (1 << 5) /* MMIO write access is not allowed in sriov runtime */ 35 36 /* flags for indirect register access path supported by rlcg for sriov */ 37 #define AMDGPU_RLCG_GC_WRITE_LEGACY (0x8 << 28) 38 #define AMDGPU_RLCG_GC_WRITE (0x0 << 28) 39 #define AMDGPU_RLCG_GC_READ (0x1 << 28) 40 #define AMDGPU_RLCG_MMHUB_WRITE (0x2 << 28) 41 42 /* error code for indirect register access path supported by rlcg for sriov */ 43 #define AMDGPU_RLCG_VFGATE_DISABLED 0x4000000 44 #define AMDGPU_RLCG_WRONG_OPERATION_TYPE 0x2000000 45 #define AMDGPU_RLCG_REG_NOT_IN_RANGE 0x1000000 46 47 #define AMDGPU_RLCG_SCRATCH1_ADDRESS_MASK 0xFFFFF 48 #define AMDGPU_RLCG_SCRATCH1_ERROR_MASK 0xF000000 49 50 /* all asic after AI use this offset */ 51 #define mmRCC_IOV_FUNC_IDENTIFIER 0xDE5 52 /* tonga/fiji use this offset */ 53 #define mmBIF_IOV_FUNC_IDENTIFIER 0x1503 54 55 #define AMDGPU_VF2PF_UPDATE_MAX_RETRY_LIMIT 2 56 57 enum amdgpu_sriov_vf_mode { 58 SRIOV_VF_MODE_BARE_METAL = 0, 59 SRIOV_VF_MODE_ONE_VF, 60 SRIOV_VF_MODE_MULTI_VF, 61 }; 62 63 struct amdgpu_mm_table { 64 struct amdgpu_bo *bo; 65 uint32_t *cpu_addr; 66 uint64_t gpu_addr; 67 }; 68 69 #define AMDGPU_VF_ERROR_ENTRY_SIZE 16 70 71 /* struct error_entry - amdgpu VF error information. */ 72 struct amdgpu_vf_error_buffer { 73 struct mutex lock; 74 int read_count; 75 int write_count; 76 uint16_t code[AMDGPU_VF_ERROR_ENTRY_SIZE]; 77 uint16_t flags[AMDGPU_VF_ERROR_ENTRY_SIZE]; 78 uint64_t data[AMDGPU_VF_ERROR_ENTRY_SIZE]; 79 }; 80 81 enum idh_request; 82 83 /** 84 * struct amdgpu_virt_ops - amdgpu device virt operations 85 */ 86 struct amdgpu_virt_ops { 87 int (*req_full_gpu)(struct amdgpu_device *adev, bool init); 88 int (*rel_full_gpu)(struct amdgpu_device *adev, bool init); 89 int (*req_init_data)(struct amdgpu_device *adev); 90 int (*reset_gpu)(struct amdgpu_device *adev); 91 void (*ready_to_reset)(struct amdgpu_device *adev); 92 int (*wait_reset)(struct amdgpu_device *adev); 93 void (*trans_msg)(struct amdgpu_device *adev, enum idh_request req, 94 u32 data1, u32 data2, u32 data3); 95 void (*ras_poison_handler)(struct amdgpu_device *adev, 96 enum amdgpu_ras_block block); 97 bool (*rcvd_ras_intr)(struct amdgpu_device *adev); 98 int (*req_ras_err_count)(struct amdgpu_device *adev); 99 int (*req_ras_cper_dump)(struct amdgpu_device *adev, u64 vf_rptr); 100 int (*req_bad_pages)(struct amdgpu_device *adev); 101 }; 102 103 /* 104 * Firmware Reserve Frame buffer 105 */ 106 struct amdgpu_virt_fw_reserve { 107 struct amd_sriov_msg_pf2vf_info_header *p_pf2vf; 108 struct amd_sriov_msg_vf2pf_info_header *p_vf2pf; 109 void *ras_telemetry; 110 unsigned int checksum_key; 111 }; 112 113 /* 114 * Legacy GIM header 115 * 116 * Defination between PF and VF 117 * Structures forcibly aligned to 4 to keep the same style as PF. 118 */ 119 #define AMDGIM_DATAEXCHANGE_OFFSET (64 * 1024) 120 121 #define AMDGIM_GET_STRUCTURE_RESERVED_SIZE(total, u8, u16, u32, u64) \ 122 (total - (((u8)+3) / 4 + ((u16)+1) / 2 + (u32) + (u64)*2)) 123 124 enum AMDGIM_FEATURE_FLAG { 125 /* GIM supports feature of Error log collecting */ 126 AMDGIM_FEATURE_ERROR_LOG_COLLECT = 0x1, 127 /* GIM supports feature of loading uCodes */ 128 AMDGIM_FEATURE_GIM_LOAD_UCODES = 0x2, 129 /* VRAM LOST by GIM */ 130 AMDGIM_FEATURE_GIM_FLR_VRAMLOST = 0x4, 131 /* MM bandwidth */ 132 AMDGIM_FEATURE_GIM_MM_BW_MGR = 0x8, 133 /* PP ONE VF MODE in GIM */ 134 AMDGIM_FEATURE_PP_ONE_VF = (1 << 4), 135 /* Indirect Reg Access enabled */ 136 AMDGIM_FEATURE_INDIRECT_REG_ACCESS = (1 << 5), 137 /* AV1 Support MODE*/ 138 AMDGIM_FEATURE_AV1_SUPPORT = (1 << 6), 139 /* VCN RB decouple */ 140 AMDGIM_FEATURE_VCN_RB_DECOUPLE = (1 << 7), 141 /* MES info */ 142 AMDGIM_FEATURE_MES_INFO_ENABLE = (1 << 8), 143 AMDGIM_FEATURE_RAS_CAPS = (1 << 9), 144 AMDGIM_FEATURE_RAS_TELEMETRY = (1 << 10), 145 AMDGIM_FEATURE_RAS_CPER = (1 << 11), 146 }; 147 148 enum AMDGIM_REG_ACCESS_FLAG { 149 /* Use PSP to program IH_RB_CNTL */ 150 AMDGIM_FEATURE_IH_REG_PSP_EN = (1 << 0), 151 /* Use RLC to program MMHUB regs */ 152 AMDGIM_FEATURE_MMHUB_REG_RLC_EN = (1 << 1), 153 /* Use RLC to program GC regs */ 154 AMDGIM_FEATURE_GC_REG_RLC_EN = (1 << 2), 155 /* Use PSP to program L1_TLB_CNTL*/ 156 AMDGIM_FEATURE_L1_TLB_CNTL_PSP_EN = (1 << 3), 157 }; 158 159 struct amdgim_pf2vf_info_v1 { 160 /* header contains size and version */ 161 struct amd_sriov_msg_pf2vf_info_header header; 162 /* max_width * max_height */ 163 unsigned int uvd_enc_max_pixels_count; 164 /* 16x16 pixels/sec, codec independent */ 165 unsigned int uvd_enc_max_bandwidth; 166 /* max_width * max_height */ 167 unsigned int vce_enc_max_pixels_count; 168 /* 16x16 pixels/sec, codec independent */ 169 unsigned int vce_enc_max_bandwidth; 170 /* MEC FW position in kb from the start of visible frame buffer */ 171 unsigned int mecfw_kboffset; 172 /* The features flags of the GIM driver supports. */ 173 unsigned int feature_flags; 174 /* use private key from mailbox 2 to create chueksum */ 175 unsigned int checksum; 176 } __aligned(4); 177 178 struct amdgim_vf2pf_info_v1 { 179 /* header contains size and version */ 180 struct amd_sriov_msg_vf2pf_info_header header; 181 /* driver version */ 182 char driver_version[64]; 183 /* driver certification, 1=WHQL, 0=None */ 184 unsigned int driver_cert; 185 /* guest OS type and version: need a define */ 186 unsigned int os_info; 187 /* in the unit of 1M */ 188 unsigned int fb_usage; 189 /* guest gfx engine usage percentage */ 190 unsigned int gfx_usage; 191 /* guest gfx engine health percentage */ 192 unsigned int gfx_health; 193 /* guest compute engine usage percentage */ 194 unsigned int compute_usage; 195 /* guest compute engine health percentage */ 196 unsigned int compute_health; 197 /* guest vce engine usage percentage. 0xffff means N/A. */ 198 unsigned int vce_enc_usage; 199 /* guest vce engine health percentage. 0xffff means N/A. */ 200 unsigned int vce_enc_health; 201 /* guest uvd engine usage percentage. 0xffff means N/A. */ 202 unsigned int uvd_enc_usage; 203 /* guest uvd engine usage percentage. 0xffff means N/A. */ 204 unsigned int uvd_enc_health; 205 unsigned int checksum; 206 } __aligned(4); 207 208 struct amdgim_vf2pf_info_v2 { 209 /* header contains size and version */ 210 struct amd_sriov_msg_vf2pf_info_header header; 211 uint32_t checksum; 212 /* driver version */ 213 uint8_t driver_version[64]; 214 /* driver certification, 1=WHQL, 0=None */ 215 uint32_t driver_cert; 216 /* guest OS type and version: need a define */ 217 uint32_t os_info; 218 /* in the unit of 1M */ 219 uint32_t fb_usage; 220 /* guest gfx engine usage percentage */ 221 uint32_t gfx_usage; 222 /* guest gfx engine health percentage */ 223 uint32_t gfx_health; 224 /* guest compute engine usage percentage */ 225 uint32_t compute_usage; 226 /* guest compute engine health percentage */ 227 uint32_t compute_health; 228 /* guest vce engine usage percentage. 0xffff means N/A. */ 229 uint32_t vce_enc_usage; 230 /* guest vce engine health percentage. 0xffff means N/A. */ 231 uint32_t vce_enc_health; 232 /* guest uvd engine usage percentage. 0xffff means N/A. */ 233 uint32_t uvd_enc_usage; 234 /* guest uvd engine usage percentage. 0xffff means N/A. */ 235 uint32_t uvd_enc_health; 236 uint32_t reserved[AMDGIM_GET_STRUCTURE_RESERVED_SIZE(256, 64, 0, (12 + sizeof(struct amd_sriov_msg_vf2pf_info_header)/sizeof(uint32_t)), 0)]; 237 } __aligned(4); 238 239 struct amdgpu_virt_ras_err_handler_data { 240 /* point to bad page records array */ 241 struct eeprom_table_record *bps; 242 /* point to reserved bo array */ 243 struct amdgpu_bo **bps_bo; 244 /* the count of entries */ 245 int count; 246 /* last reserved entry's index + 1 */ 247 int last_reserved; 248 }; 249 250 struct amdgpu_virt_ras { 251 struct ratelimit_state ras_error_cnt_rs; 252 struct ratelimit_state ras_cper_dump_rs; 253 struct mutex ras_telemetry_mutex; 254 uint64_t cper_rptr; 255 }; 256 257 /* GPU virtualization */ 258 struct amdgpu_virt { 259 uint32_t caps; 260 struct amdgpu_bo *csa_obj; 261 void *csa_cpu_addr; 262 bool chained_ib_support; 263 uint32_t reg_val_offs; 264 struct amdgpu_irq_src ack_irq; 265 struct amdgpu_irq_src rcv_irq; 266 267 struct work_struct flr_work; 268 struct work_struct bad_pages_work; 269 270 struct amdgpu_mm_table mm_table; 271 const struct amdgpu_virt_ops *ops; 272 struct amdgpu_vf_error_buffer vf_errors; 273 struct amdgpu_virt_fw_reserve fw_reserve; 274 uint32_t gim_feature; 275 uint32_t reg_access_mode; 276 int req_init_data_ver; 277 bool tdr_debug; 278 struct amdgpu_virt_ras_err_handler_data *virt_eh_data; 279 bool ras_init_done; 280 uint32_t reg_access; 281 282 /* vf2pf message */ 283 struct delayed_work vf2pf_work; 284 uint32_t vf2pf_update_interval_ms; 285 int vf2pf_update_retry_cnt; 286 287 /* multimedia bandwidth config */ 288 bool is_mm_bw_enabled; 289 uint32_t decode_max_dimension_pixels; 290 uint32_t decode_max_frame_pixels; 291 uint32_t encode_max_dimension_pixels; 292 uint32_t encode_max_frame_pixels; 293 294 /* the ucode id to signal the autoload */ 295 uint32_t autoload_ucode_id; 296 297 /* Spinlock to protect access to the RLCG register interface */ 298 spinlock_t rlcg_reg_lock; 299 300 union amd_sriov_ras_caps ras_en_caps; 301 union amd_sriov_ras_caps ras_telemetry_en_caps; 302 struct amdgpu_virt_ras ras; 303 struct amd_sriov_ras_telemetry_error_count count_cache; 304 }; 305 306 struct amdgpu_video_codec_info; 307 308 #define amdgpu_sriov_enabled(adev) \ 309 ((adev)->virt.caps & AMDGPU_SRIOV_CAPS_ENABLE_IOV) 310 311 #define amdgpu_sriov_vf(adev) \ 312 ((adev)->virt.caps & AMDGPU_SRIOV_CAPS_IS_VF) 313 314 #define amdgpu_sriov_bios(adev) \ 315 ((adev)->virt.caps & AMDGPU_SRIOV_CAPS_SRIOV_VBIOS) 316 317 #define amdgpu_sriov_runtime(adev) \ 318 ((adev)->virt.caps & AMDGPU_SRIOV_CAPS_RUNTIME) 319 320 #define amdgpu_sriov_fullaccess(adev) \ 321 (amdgpu_sriov_vf((adev)) && !amdgpu_sriov_runtime((adev))) 322 323 #define amdgpu_sriov_reg_indirect_en(adev) \ 324 (amdgpu_sriov_vf((adev)) && \ 325 ((adev)->virt.gim_feature & (AMDGIM_FEATURE_INDIRECT_REG_ACCESS))) 326 327 #define amdgpu_sriov_reg_indirect_ih(adev) \ 328 (amdgpu_sriov_vf((adev)) && \ 329 ((adev)->virt.reg_access & (AMDGIM_FEATURE_IH_REG_PSP_EN))) 330 331 #define amdgpu_sriov_reg_indirect_mmhub(adev) \ 332 (amdgpu_sriov_vf((adev)) && \ 333 ((adev)->virt.reg_access & (AMDGIM_FEATURE_MMHUB_REG_RLC_EN))) 334 335 #define amdgpu_sriov_reg_indirect_gc(adev) \ 336 (amdgpu_sriov_vf((adev)) && \ 337 ((adev)->virt.reg_access & (AMDGIM_FEATURE_GC_REG_RLC_EN))) 338 339 #define amdgpu_sriov_reg_indirect_l1_tlb_cntl(adev) \ 340 (amdgpu_sriov_vf((adev)) && \ 341 ((adev)->virt.reg_access & (AMDGIM_FEATURE_L1_TLB_CNTL_PSP_EN))) 342 343 #define amdgpu_sriov_rlcg_error_report_enabled(adev) \ 344 (amdgpu_sriov_reg_indirect_mmhub(adev) || amdgpu_sriov_reg_indirect_gc(adev)) 345 346 #define amdgpu_passthrough(adev) \ 347 ((adev)->virt.caps & AMDGPU_PASSTHROUGH_MODE) 348 349 #define amdgpu_sriov_vf_mmio_access_protection(adev) \ 350 ((adev)->virt.caps & AMDGPU_VF_MMIO_ACCESS_PROTECT) 351 352 #define amdgpu_sriov_ras_caps_en(adev) \ 353 ((adev)->virt.gim_feature & AMDGIM_FEATURE_RAS_CAPS) 354 355 #define amdgpu_sriov_ras_telemetry_en(adev) \ 356 (((adev)->virt.gim_feature & AMDGIM_FEATURE_RAS_TELEMETRY) && (adev)->virt.fw_reserve.ras_telemetry) 357 358 #define amdgpu_sriov_ras_telemetry_block_en(adev, sriov_blk) \ 359 (amdgpu_sriov_ras_telemetry_en((adev)) && (adev)->virt.ras_telemetry_en_caps.all & BIT(sriov_blk)) 360 361 #define amdgpu_sriov_ras_cper_en(adev) \ 362 ((adev)->virt.gim_feature & AMDGIM_FEATURE_RAS_CPER) 363 364 static inline bool is_virtual_machine(void) 365 { 366 #if defined(CONFIG_X86) 367 return boot_cpu_has(X86_FEATURE_HYPERVISOR); 368 #elif defined(CONFIG_ARM64) 369 return !is_kernel_in_hyp_mode(); 370 #else 371 return false; 372 #endif 373 } 374 375 #define amdgpu_sriov_is_pp_one_vf(adev) \ 376 ((adev)->virt.gim_feature & AMDGIM_FEATURE_PP_ONE_VF) 377 #define amdgpu_sriov_multi_vf_mode(adev) \ 378 (amdgpu_sriov_vf(adev) && !amdgpu_sriov_is_pp_one_vf(adev)) 379 #define amdgpu_sriov_is_debug(adev) \ 380 ((!amdgpu_in_reset(adev)) && adev->virt.tdr_debug) 381 #define amdgpu_sriov_is_normal(adev) \ 382 ((!amdgpu_in_reset(adev)) && (!adev->virt.tdr_debug)) 383 #define amdgpu_sriov_is_av1_support(adev) \ 384 ((adev)->virt.gim_feature & AMDGIM_FEATURE_AV1_SUPPORT) 385 #define amdgpu_sriov_is_vcn_rb_decouple(adev) \ 386 ((adev)->virt.gim_feature & AMDGIM_FEATURE_VCN_RB_DECOUPLE) 387 #define amdgpu_sriov_is_mes_info_enable(adev) \ 388 ((adev)->virt.gim_feature & AMDGIM_FEATURE_MES_INFO_ENABLE) 389 bool amdgpu_virt_mmio_blocked(struct amdgpu_device *adev); 390 void amdgpu_virt_init_setting(struct amdgpu_device *adev); 391 int amdgpu_virt_request_full_gpu(struct amdgpu_device *adev, bool init); 392 int amdgpu_virt_release_full_gpu(struct amdgpu_device *adev, bool init); 393 int amdgpu_virt_reset_gpu(struct amdgpu_device *adev); 394 void amdgpu_virt_request_init_data(struct amdgpu_device *adev); 395 void amdgpu_virt_ready_to_reset(struct amdgpu_device *adev); 396 int amdgpu_virt_wait_reset(struct amdgpu_device *adev); 397 int amdgpu_virt_alloc_mm_table(struct amdgpu_device *adev); 398 void amdgpu_virt_free_mm_table(struct amdgpu_device *adev); 399 bool amdgpu_virt_rcvd_ras_interrupt(struct amdgpu_device *adev); 400 void amdgpu_virt_release_ras_err_handler_data(struct amdgpu_device *adev); 401 void amdgpu_virt_init_data_exchange(struct amdgpu_device *adev); 402 void amdgpu_virt_exchange_data(struct amdgpu_device *adev); 403 void amdgpu_virt_fini_data_exchange(struct amdgpu_device *adev); 404 void amdgpu_virt_init(struct amdgpu_device *adev); 405 406 bool amdgpu_virt_can_access_debugfs(struct amdgpu_device *adev); 407 int amdgpu_virt_enable_access_debugfs(struct amdgpu_device *adev); 408 void amdgpu_virt_disable_access_debugfs(struct amdgpu_device *adev); 409 410 enum amdgpu_sriov_vf_mode amdgpu_virt_get_sriov_vf_mode(struct amdgpu_device *adev); 411 412 void amdgpu_virt_update_sriov_video_codec(struct amdgpu_device *adev, 413 struct amdgpu_video_codec_info *encode, uint32_t encode_array_size, 414 struct amdgpu_video_codec_info *decode, uint32_t decode_array_size); 415 void amdgpu_sriov_wreg(struct amdgpu_device *adev, 416 u32 offset, u32 value, 417 u32 acc_flags, u32 hwip, u32 xcc_id); 418 u32 amdgpu_sriov_rreg(struct amdgpu_device *adev, 419 u32 offset, u32 acc_flags, u32 hwip, u32 xcc_id); 420 bool amdgpu_virt_fw_load_skip_check(struct amdgpu_device *adev, 421 uint32_t ucode_id); 422 void amdgpu_virt_pre_reset(struct amdgpu_device *adev); 423 void amdgpu_virt_post_reset(struct amdgpu_device *adev); 424 bool amdgpu_sriov_xnack_support(struct amdgpu_device *adev); 425 bool amdgpu_virt_get_rlcg_reg_access_flag(struct amdgpu_device *adev, 426 u32 acc_flags, u32 hwip, 427 bool write, u32 *rlcg_flag); 428 u32 amdgpu_virt_rlcg_reg_rw(struct amdgpu_device *adev, u32 offset, u32 v, u32 flag, u32 xcc_id); 429 bool amdgpu_virt_get_ras_capability(struct amdgpu_device *adev); 430 int amdgpu_virt_req_ras_err_count(struct amdgpu_device *adev, enum amdgpu_ras_block block, 431 struct ras_err_data *err_data); 432 int amdgpu_virt_req_ras_cper_dump(struct amdgpu_device *adev, bool force_update); 433 int amdgpu_virt_ras_telemetry_post_reset(struct amdgpu_device *adev); 434 bool amdgpu_virt_ras_telemetry_block_en(struct amdgpu_device *adev, 435 enum amdgpu_ras_block block); 436 void amdgpu_virt_request_bad_pages(struct amdgpu_device *adev); 437 #endif 438