/* * Copyright 2016 Advanced Micro Devices, Inc. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR * OTHER DEALINGS IN THE SOFTWARE. * * Author: Monk.liu@amd.com */ #ifndef AMDGPU_VIRT_H #define AMDGPU_VIRT_H #include "amdgv_sriovmsg.h" #define AMDGPU_SRIOV_CAPS_SRIOV_VBIOS (1 << 0) /* vBIOS is sr-iov ready */ #define AMDGPU_SRIOV_CAPS_ENABLE_IOV (1 << 1) /* sr-iov is enabled on this GPU */ #define AMDGPU_SRIOV_CAPS_IS_VF (1 << 2) /* this GPU is a virtual function */ #define AMDGPU_PASSTHROUGH_MODE (1 << 3) /* thw whole GPU is pass through for VM */ #define AMDGPU_SRIOV_CAPS_RUNTIME (1 << 4) /* is out of full access mode */ #define AMDGPU_VF_MMIO_ACCESS_PROTECT (1 << 5) /* MMIO write access is not allowed in sriov runtime */ /* all asic after AI use this offset */ #define mmRCC_IOV_FUNC_IDENTIFIER 0xDE5 /* tonga/fiji use this offset */ #define mmBIF_IOV_FUNC_IDENTIFIER 0x1503 enum amdgpu_sriov_vf_mode { SRIOV_VF_MODE_BARE_METAL = 0, SRIOV_VF_MODE_ONE_VF, SRIOV_VF_MODE_MULTI_VF, }; struct amdgpu_mm_table { struct amdgpu_bo *bo; uint32_t *cpu_addr; uint64_t gpu_addr; }; #define AMDGPU_VF_ERROR_ENTRY_SIZE 16 /* struct error_entry - amdgpu VF error information. */ struct amdgpu_vf_error_buffer { struct mutex lock; int read_count; int write_count; uint16_t code[AMDGPU_VF_ERROR_ENTRY_SIZE]; uint16_t flags[AMDGPU_VF_ERROR_ENTRY_SIZE]; uint64_t data[AMDGPU_VF_ERROR_ENTRY_SIZE]; }; enum idh_request; /** * struct amdgpu_virt_ops - amdgpu device virt operations */ struct amdgpu_virt_ops { int (*req_full_gpu)(struct amdgpu_device *adev, bool init); int (*rel_full_gpu)(struct amdgpu_device *adev, bool init); int (*req_init_data)(struct amdgpu_device *adev); int (*reset_gpu)(struct amdgpu_device *adev); int (*wait_reset)(struct amdgpu_device *adev); void (*trans_msg)(struct amdgpu_device *adev, enum idh_request req, u32 data1, u32 data2, u32 data3); }; /* * Firmware Reserve Frame buffer */ struct amdgpu_virt_fw_reserve { struct amd_sriov_msg_pf2vf_info_header *p_pf2vf; struct amd_sriov_msg_vf2pf_info_header *p_vf2pf; unsigned int checksum_key; }; /* * Legacy GIM header * * Defination between PF and VF * Structures forcibly aligned to 4 to keep the same style as PF. */ #define AMDGIM_DATAEXCHANGE_OFFSET (64 * 1024) #define AMDGIM_GET_STRUCTURE_RESERVED_SIZE(total, u8, u16, u32, u64) \ (total - (((u8)+3) / 4 + ((u16)+1) / 2 + (u32) + (u64)*2)) enum AMDGIM_FEATURE_FLAG { /* GIM supports feature of Error log collecting */ AMDGIM_FEATURE_ERROR_LOG_COLLECT = 0x1, /* GIM supports feature of loading uCodes */ AMDGIM_FEATURE_GIM_LOAD_UCODES = 0x2, /* VRAM LOST by GIM */ AMDGIM_FEATURE_GIM_FLR_VRAMLOST = 0x4, /* MM bandwidth */ AMDGIM_FEATURE_GIM_MM_BW_MGR = 0x8, /* PP ONE VF MODE in GIM */ AMDGIM_FEATURE_PP_ONE_VF = (1 << 4), }; struct amdgim_pf2vf_info_v1 { /* header contains size and version */ struct amd_sriov_msg_pf2vf_info_header header; /* max_width * max_height */ unsigned int uvd_enc_max_pixels_count; /* 16x16 pixels/sec, codec independent */ unsigned int uvd_enc_max_bandwidth; /* max_width * max_height */ unsigned int vce_enc_max_pixels_count; /* 16x16 pixels/sec, codec independent */ unsigned int vce_enc_max_bandwidth; /* MEC FW position in kb from the start of visible frame buffer */ unsigned int mecfw_kboffset; /* The features flags of the GIM driver supports. */ unsigned int feature_flags; /* use private key from mailbox 2 to create chueksum */ unsigned int checksum; } __aligned(4); struct amdgim_vf2pf_info_v1 { /* header contains size and version */ struct amd_sriov_msg_vf2pf_info_header header; /* driver version */ char driver_version[64]; /* driver certification, 1=WHQL, 0=None */ unsigned int driver_cert; /* guest OS type and version: need a define */ unsigned int os_info; /* in the unit of 1M */ unsigned int fb_usage; /* guest gfx engine usage percentage */ unsigned int gfx_usage; /* guest gfx engine health percentage */ unsigned int gfx_health; /* guest compute engine usage percentage */ unsigned int compute_usage; /* guest compute engine health percentage */ unsigned int compute_health; /* guest vce engine usage percentage. 0xffff means N/A. */ unsigned int vce_enc_usage; /* guest vce engine health percentage. 0xffff means N/A. */ unsigned int vce_enc_health; /* guest uvd engine usage percentage. 0xffff means N/A. */ unsigned int uvd_enc_usage; /* guest uvd engine usage percentage. 0xffff means N/A. */ unsigned int uvd_enc_health; unsigned int checksum; } __aligned(4); struct amdgim_vf2pf_info_v2 { /* header contains size and version */ struct amd_sriov_msg_vf2pf_info_header header; uint32_t checksum; /* driver version */ uint8_t driver_version[64]; /* driver certification, 1=WHQL, 0=None */ uint32_t driver_cert; /* guest OS type and version: need a define */ uint32_t os_info; /* in the unit of 1M */ uint32_t fb_usage; /* guest gfx engine usage percentage */ uint32_t gfx_usage; /* guest gfx engine health percentage */ uint32_t gfx_health; /* guest compute engine usage percentage */ uint32_t compute_usage; /* guest compute engine health percentage */ uint32_t compute_health; /* guest vce engine usage percentage. 0xffff means N/A. */ uint32_t vce_enc_usage; /* guest vce engine health percentage. 0xffff means N/A. */ uint32_t vce_enc_health; /* guest uvd engine usage percentage. 0xffff means N/A. */ uint32_t uvd_enc_usage; /* guest uvd engine usage percentage. 0xffff means N/A. */ uint32_t uvd_enc_health; uint32_t reserved[AMDGIM_GET_STRUCTURE_RESERVED_SIZE(256, 64, 0, (12 + sizeof(struct amd_sriov_msg_vf2pf_info_header)/sizeof(uint32_t)), 0)]; } __aligned(4); struct amdgpu_virt_ras_err_handler_data { /* point to bad page records array */ struct eeprom_table_record *bps; /* point to reserved bo array */ struct amdgpu_bo **bps_bo; /* the count of entries */ int count; /* last reserved entry's index + 1 */ int last_reserved; }; /* GPU virtualization */ struct amdgpu_virt { uint32_t caps; struct amdgpu_bo *csa_obj; void *csa_cpu_addr; bool chained_ib_support; uint32_t reg_val_offs; struct amdgpu_irq_src ack_irq; struct amdgpu_irq_src rcv_irq; struct work_struct flr_work; struct amdgpu_mm_table mm_table; const struct amdgpu_virt_ops *ops; struct amdgpu_vf_error_buffer vf_errors; struct amdgpu_virt_fw_reserve fw_reserve; uint32_t gim_feature; uint32_t reg_access_mode; int req_init_data_ver; bool tdr_debug; struct amdgpu_virt_ras_err_handler_data *virt_eh_data; bool ras_init_done; /* vf2pf message */ struct delayed_work vf2pf_work; uint32_t vf2pf_update_interval_ms; }; #define amdgpu_sriov_enabled(adev) \ ((adev)->virt.caps & AMDGPU_SRIOV_CAPS_ENABLE_IOV) #define amdgpu_sriov_vf(adev) \ ((adev)->virt.caps & AMDGPU_SRIOV_CAPS_IS_VF) #define amdgpu_sriov_bios(adev) \ ((adev)->virt.caps & AMDGPU_SRIOV_CAPS_SRIOV_VBIOS) #define amdgpu_sriov_runtime(adev) \ ((adev)->virt.caps & AMDGPU_SRIOV_CAPS_RUNTIME) #define amdgpu_sriov_fullaccess(adev) \ (amdgpu_sriov_vf((adev)) && !amdgpu_sriov_runtime((adev))) #define amdgpu_passthrough(adev) \ ((adev)->virt.caps & AMDGPU_PASSTHROUGH_MODE) #define amdgpu_sriov_vf_mmio_access_protection(adev) \ ((adev)->virt.caps & AMDGPU_VF_MMIO_ACCESS_PROTECT) static inline bool is_virtual_machine(void) { #ifdef CONFIG_X86 return boot_cpu_has(X86_FEATURE_HYPERVISOR); #else return false; #endif } #define amdgpu_sriov_is_pp_one_vf(adev) \ ((adev)->virt.gim_feature & AMDGIM_FEATURE_PP_ONE_VF) #define amdgpu_sriov_is_debug(adev) \ ((!amdgpu_in_reset(adev)) && adev->virt.tdr_debug) #define amdgpu_sriov_is_normal(adev) \ ((!amdgpu_in_reset(adev)) && (!adev->virt.tdr_debug)) bool amdgpu_virt_mmio_blocked(struct amdgpu_device *adev); void amdgpu_virt_init_setting(struct amdgpu_device *adev); void amdgpu_virt_kiq_reg_write_reg_wait(struct amdgpu_device *adev, uint32_t reg0, uint32_t rreg1, uint32_t ref, uint32_t mask); int amdgpu_virt_request_full_gpu(struct amdgpu_device *adev, bool init); int amdgpu_virt_release_full_gpu(struct amdgpu_device *adev, bool init); int amdgpu_virt_reset_gpu(struct amdgpu_device *adev); void amdgpu_virt_request_init_data(struct amdgpu_device *adev); int amdgpu_virt_wait_reset(struct amdgpu_device *adev); int amdgpu_virt_alloc_mm_table(struct amdgpu_device *adev); void amdgpu_virt_free_mm_table(struct amdgpu_device *adev); void amdgpu_virt_release_ras_err_handler_data(struct amdgpu_device *adev); void amdgpu_virt_init_data_exchange(struct amdgpu_device *adev); void amdgpu_virt_exchange_data(struct amdgpu_device *adev); void amdgpu_virt_fini_data_exchange(struct amdgpu_device *adev); void amdgpu_detect_virtualization(struct amdgpu_device *adev); bool amdgpu_virt_can_access_debugfs(struct amdgpu_device *adev); int amdgpu_virt_enable_access_debugfs(struct amdgpu_device *adev); void amdgpu_virt_disable_access_debugfs(struct amdgpu_device *adev); enum amdgpu_sriov_vf_mode amdgpu_virt_get_sriov_vf_mode(struct amdgpu_device *adev); #endif