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 #define AMDGPU_SRIOV_CAPS_SRIOV_VBIOS (1 << 0) /* vBIOS is sr-iov ready */ 28 #define AMDGPU_SRIOV_CAPS_ENABLE_IOV (1 << 1) /* sr-iov is enabled on this GPU */ 29 #define AMDGPU_SRIOV_CAPS_IS_VF (1 << 2) /* this GPU is a virtual function */ 30 #define AMDGPU_PASSTHROUGH_MODE (1 << 3) /* thw whole GPU is pass through for VM */ 31 /* GPU virtualization */ 32 struct amdgpu_virtualization { 33 uint32_t virtual_caps; 34 }; 35 36 #define amdgpu_sriov_enabled(adev) \ 37 ((adev)->virtualization.virtual_caps & AMDGPU_SRIOV_CAPS_ENABLE_IOV) 38 39 #define amdgpu_sriov_vf(adev) \ 40 ((adev)->virtualization.virtual_caps & AMDGPU_SRIOV_CAPS_IS_VF) 41 42 #define amdgpu_sriov_bios(adev) \ 43 ((adev)->virtualization.virtual_caps & AMDGPU_SRIOV_CAPS_SRIOV_VBIOS) 44 45 #define amdgpu_passthrough(adev) \ 46 ((adev)->virtualization.virtual_caps & AMDGPU_PASSTHROUGH_MODE) 47 48 static inline bool is_virtual_machine(void) 49 { 50 #ifdef CONFIG_X86 51 return boot_cpu_has(X86_FEATURE_HYPERVISOR); 52 #else 53 return false; 54 #endif 55 } 56 57 #endif