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