1 /* $NetBSD: amdgpu_virt.h,v 1.3 2021/12/19 10:59:01 riastradh Exp $ */ 2 3 /* 4 * Copyright 2016 Advanced Micro Devices, Inc. 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a 7 * copy of this software and associated documentation files (the "Software"), 8 * to deal in the Software without restriction, including without limitation 9 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 10 * and/or sell copies of the Software, and to permit persons to whom the 11 * Software is furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice shall be included in 14 * all copies or substantial portions of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 19 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 22 * OTHER DEALINGS IN THE SOFTWARE. 23 * 24 * Author: Monk.liu (at) amd.com 25 */ 26 #ifndef AMDGPU_VIRT_H 27 #define AMDGPU_VIRT_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 35 struct amdgpu_mm_table { 36 struct amdgpu_bo *bo; 37 uint32_t *cpu_addr; 38 uint64_t gpu_addr; 39 }; 40 41 #define AMDGPU_VF_ERROR_ENTRY_SIZE 16 42 43 /* struct error_entry - amdgpu VF error information. */ 44 struct amdgpu_vf_error_buffer { 45 struct mutex lock; 46 int read_count; 47 int write_count; 48 uint16_t code[AMDGPU_VF_ERROR_ENTRY_SIZE]; 49 uint16_t flags[AMDGPU_VF_ERROR_ENTRY_SIZE]; 50 uint64_t data[AMDGPU_VF_ERROR_ENTRY_SIZE]; 51 }; 52 53 /** 54 * struct amdgpu_virt_ops - amdgpu device virt operations 55 */ 56 struct amdgpu_virt_ops { 57 int (*req_full_gpu)(struct amdgpu_device *adev, bool init); 58 int (*rel_full_gpu)(struct amdgpu_device *adev, bool init); 59 int (*reset_gpu)(struct amdgpu_device *adev); 60 int (*wait_reset)(struct amdgpu_device *adev); 61 void (*trans_msg)(struct amdgpu_device *adev, u32 req, u32 data1, u32 data2, u32 data3); 62 }; 63 64 /* 65 * Firmware Reserve Frame buffer 66 */ 67 struct amdgpu_virt_fw_reserve { 68 struct amd_sriov_msg_pf2vf_info_header *p_pf2vf; 69 struct amd_sriov_msg_vf2pf_info_header *p_vf2pf; 70 unsigned int checksum_key; 71 }; 72 /* 73 * Defination between PF and VF 74 * Structures forcibly aligned to 4 to keep the same style as PF. 75 */ 76 #define AMDGIM_DATAEXCHANGE_OFFSET (64 * 1024) 77 78 #define AMDGIM_GET_STRUCTURE_RESERVED_SIZE(total, u8, u16, u32, u64) \ 79 (total - (((u8)+3) / 4 + ((u16)+1) / 2 + (u32) + (u64)*2)) 80 81 enum AMDGIM_FEATURE_FLAG { 82 /* GIM supports feature of Error log collecting */ 83 AMDGIM_FEATURE_ERROR_LOG_COLLECT = 0x1, 84 /* GIM supports feature of loading uCodes */ 85 AMDGIM_FEATURE_GIM_LOAD_UCODES = 0x2, 86 /* VRAM LOST by GIM */ 87 AMDGIM_FEATURE_GIM_FLR_VRAMLOST = 0x4, 88 /* PP ONE VF MODE in GIM */ 89 AMDGIM_FEATURE_PP_ONE_VF = (1 << 4), 90 }; 91 92 struct amd_sriov_msg_pf2vf_info_header { 93 /* the total structure size in byte. */ 94 uint32_t size; 95 /* version of this structure, written by the GIM */ 96 uint32_t version; 97 /* reserved */ 98 uint32_t reserved[2]; 99 } __aligned(4); 100 struct amdgim_pf2vf_info_v1 { 101 /* header contains size and version */ 102 struct amd_sriov_msg_pf2vf_info_header header; 103 /* max_width * max_height */ 104 unsigned int uvd_enc_max_pixels_count; 105 /* 16x16 pixels/sec, codec independent */ 106 unsigned int uvd_enc_max_bandwidth; 107 /* max_width * max_height */ 108 unsigned int vce_enc_max_pixels_count; 109 /* 16x16 pixels/sec, codec independent */ 110 unsigned int vce_enc_max_bandwidth; 111 /* MEC FW position in kb from the start of visible frame buffer */ 112 unsigned int mecfw_kboffset; 113 /* The features flags of the GIM driver supports. */ 114 unsigned int feature_flags; 115 /* use private key from mailbox 2 to create chueksum */ 116 unsigned int checksum; 117 } __aligned(4); 118 119 struct amdgim_pf2vf_info_v2 { 120 /* header contains size and version */ 121 struct amd_sriov_msg_pf2vf_info_header header; 122 /* use private key from mailbox 2 to create chueksum */ 123 uint32_t checksum; 124 /* The features flags of the GIM driver supports. */ 125 uint32_t feature_flags; 126 /* max_width * max_height */ 127 uint32_t uvd_enc_max_pixels_count; 128 /* 16x16 pixels/sec, codec independent */ 129 uint32_t uvd_enc_max_bandwidth; 130 /* max_width * max_height */ 131 uint32_t vce_enc_max_pixels_count; 132 /* 16x16 pixels/sec, codec independent */ 133 uint32_t vce_enc_max_bandwidth; 134 /* MEC FW position in kb from the start of VF visible frame buffer */ 135 uint64_t mecfw_kboffset; 136 /* MEC FW size in KB */ 137 uint32_t mecfw_ksize; 138 /* UVD FW position in kb from the start of VF visible frame buffer */ 139 uint64_t uvdfw_kboffset; 140 /* UVD FW size in KB */ 141 uint32_t uvdfw_ksize; 142 /* VCE FW position in kb from the start of VF visible frame buffer */ 143 uint64_t vcefw_kboffset; 144 /* VCE FW size in KB */ 145 uint32_t vcefw_ksize; 146 uint32_t reserved[AMDGIM_GET_STRUCTURE_RESERVED_SIZE(256, 0, 0, (9 + sizeof(struct amd_sriov_msg_pf2vf_info_header)/sizeof(uint32_t)), 3)]; 147 } __aligned(4); 148 149 150 struct amd_sriov_msg_vf2pf_info_header { 151 /* the total structure size in byte. */ 152 uint32_t size; 153 /*version of this structure, written by the guest */ 154 uint32_t version; 155 /* reserved */ 156 uint32_t reserved[2]; 157 } __aligned(4); 158 159 struct amdgim_vf2pf_info_v1 { 160 /* header contains size and version */ 161 struct amd_sriov_msg_vf2pf_info_header header; 162 /* driver version */ 163 char driver_version[64]; 164 /* driver certification, 1=WHQL, 0=None */ 165 unsigned int driver_cert; 166 /* guest OS type and version: need a define */ 167 unsigned int os_info; 168 /* in the unit of 1M */ 169 unsigned int fb_usage; 170 /* guest gfx engine usage percentage */ 171 unsigned int gfx_usage; 172 /* guest gfx engine health percentage */ 173 unsigned int gfx_health; 174 /* guest compute engine usage percentage */ 175 unsigned int compute_usage; 176 /* guest compute engine health percentage */ 177 unsigned int compute_health; 178 /* guest vce engine usage percentage. 0xffff means N/A. */ 179 unsigned int vce_enc_usage; 180 /* guest vce engine health percentage. 0xffff means N/A. */ 181 unsigned int vce_enc_health; 182 /* guest uvd engine usage percentage. 0xffff means N/A. */ 183 unsigned int uvd_enc_usage; 184 /* guest uvd engine usage percentage. 0xffff means N/A. */ 185 unsigned int uvd_enc_health; 186 unsigned int checksum; 187 } __aligned(4); 188 189 struct amdgim_vf2pf_info_v2 { 190 /* header contains size and version */ 191 struct amd_sriov_msg_vf2pf_info_header header; 192 uint32_t checksum; 193 /* driver version */ 194 uint8_t driver_version[64]; 195 /* driver certification, 1=WHQL, 0=None */ 196 uint32_t driver_cert; 197 /* guest OS type and version: need a define */ 198 uint32_t os_info; 199 /* in the unit of 1M */ 200 uint32_t fb_usage; 201 /* guest gfx engine usage percentage */ 202 uint32_t gfx_usage; 203 /* guest gfx engine health percentage */ 204 uint32_t gfx_health; 205 /* guest compute engine usage percentage */ 206 uint32_t compute_usage; 207 /* guest compute engine health percentage */ 208 uint32_t compute_health; 209 /* guest vce engine usage percentage. 0xffff means N/A. */ 210 uint32_t vce_enc_usage; 211 /* guest vce engine health percentage. 0xffff means N/A. */ 212 uint32_t vce_enc_health; 213 /* guest uvd engine usage percentage. 0xffff means N/A. */ 214 uint32_t uvd_enc_usage; 215 /* guest uvd engine usage percentage. 0xffff means N/A. */ 216 uint32_t uvd_enc_health; 217 uint32_t reserved[AMDGIM_GET_STRUCTURE_RESERVED_SIZE(256, 64, 0, (12 + sizeof(struct amd_sriov_msg_vf2pf_info_header)/sizeof(uint32_t)), 0)]; 218 } __aligned(4); 219 220 #define AMDGPU_FW_VRAM_VF2PF_VER 2 221 typedef struct amdgim_vf2pf_info_v2 amdgim_vf2pf_info ; 222 223 #define AMDGPU_FW_VRAM_VF2PF_WRITE(adev, field, val) \ 224 do { \ 225 ((amdgim_vf2pf_info *)adev->virt.fw_reserve.p_vf2pf)->field = (val); \ 226 } while (0) 227 228 #define AMDGPU_FW_VRAM_VF2PF_READ(adev, field, val) \ 229 do { \ 230 (*val) = ((amdgim_vf2pf_info *)adev->virt.fw_reserve.p_vf2pf)->field; \ 231 } while (0) 232 233 #define AMDGPU_FW_VRAM_PF2VF_READ(adev, field, val) \ 234 do { \ 235 if (!adev->virt.fw_reserve.p_pf2vf) \ 236 *(val) = 0; \ 237 else { \ 238 if (adev->virt.fw_reserve.p_pf2vf->version == 1) \ 239 *(val) = ((struct amdgim_pf2vf_info_v1 *)adev->virt.fw_reserve.p_pf2vf)->field; \ 240 if (adev->virt.fw_reserve.p_pf2vf->version == 2) \ 241 *(val) = ((struct amdgim_pf2vf_info_v2 *)adev->virt.fw_reserve.p_pf2vf)->field; \ 242 } \ 243 } while (0) 244 245 /* GPU virtualization */ 246 struct amdgpu_virt { 247 uint32_t caps; 248 struct amdgpu_bo *csa_obj; 249 void *csa_cpu_addr; 250 bool chained_ib_support; 251 uint32_t reg_val_offs; 252 struct amdgpu_irq_src ack_irq; 253 struct amdgpu_irq_src rcv_irq; 254 struct work_struct flr_work; 255 struct amdgpu_mm_table mm_table; 256 const struct amdgpu_virt_ops *ops; 257 struct amdgpu_vf_error_buffer vf_errors; 258 struct amdgpu_virt_fw_reserve fw_reserve; 259 uint32_t gim_feature; 260 uint32_t reg_access_mode; 261 }; 262 263 #define amdgpu_sriov_enabled(adev) \ 264 ((adev)->virt.caps & AMDGPU_SRIOV_CAPS_ENABLE_IOV) 265 266 #define amdgpu_sriov_vf(adev) \ 267 ((adev)->virt.caps & AMDGPU_SRIOV_CAPS_IS_VF) 268 269 #define amdgpu_sriov_bios(adev) \ 270 ((adev)->virt.caps & AMDGPU_SRIOV_CAPS_SRIOV_VBIOS) 271 272 #define amdgpu_sriov_runtime(adev) \ 273 ((adev)->virt.caps & AMDGPU_SRIOV_CAPS_RUNTIME) 274 275 #define amdgpu_passthrough(adev) \ 276 ((adev)->virt.caps & AMDGPU_PASSTHROUGH_MODE) 277 278 static inline bool is_virtual_machine(void) 279 { 280 #ifdef CONFIG_X86 281 #ifdef __NetBSD__ 282 return false; /* XXX */ 283 #else 284 return boot_cpu_has(X86_FEATURE_HYPERVISOR); 285 #endif 286 #else 287 return false; 288 #endif 289 } 290 291 #define amdgpu_sriov_is_pp_one_vf(adev) \ 292 ((adev)->virt.gim_feature & AMDGIM_FEATURE_PP_ONE_VF) 293 294 bool amdgpu_virt_mmio_blocked(struct amdgpu_device *adev); 295 void amdgpu_virt_init_setting(struct amdgpu_device *adev); 296 void amdgpu_virt_kiq_reg_write_reg_wait(struct amdgpu_device *adev, 297 uint32_t reg0, uint32_t rreg1, 298 uint32_t ref, uint32_t mask); 299 int amdgpu_virt_request_full_gpu(struct amdgpu_device *adev, bool init); 300 int amdgpu_virt_release_full_gpu(struct amdgpu_device *adev, bool init); 301 int amdgpu_virt_reset_gpu(struct amdgpu_device *adev); 302 int amdgpu_virt_wait_reset(struct amdgpu_device *adev); 303 int amdgpu_virt_alloc_mm_table(struct amdgpu_device *adev); 304 void amdgpu_virt_free_mm_table(struct amdgpu_device *adev); 305 int amdgpu_virt_fw_reserve_get_checksum(void *obj, unsigned long obj_size, 306 unsigned int key, 307 unsigned int chksum); 308 void amdgpu_virt_init_data_exchange(struct amdgpu_device *adev); 309 #endif 310
Indexes created Sat Sep 20 22:09:52 GMT 2025