1ceeb50edSMonk Liu /* 2ceeb50edSMonk Liu * Copyright 2016 Advanced Micro Devices, Inc. 3ceeb50edSMonk Liu * 4ceeb50edSMonk Liu * Permission is hereby granted, free of charge, to any person obtaining a 5ceeb50edSMonk Liu * copy of this software and associated documentation files (the "Software"), 6ceeb50edSMonk Liu * to deal in the Software without restriction, including without limitation 7ceeb50edSMonk Liu * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8ceeb50edSMonk Liu * and/or sell copies of the Software, and to permit persons to whom the 9ceeb50edSMonk Liu * Software is furnished to do so, subject to the following conditions: 10ceeb50edSMonk Liu * 11ceeb50edSMonk Liu * The above copyright notice and this permission notice shall be included in 12ceeb50edSMonk Liu * all copies or substantial portions of the Software. 13ceeb50edSMonk Liu * 14ceeb50edSMonk Liu * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15ceeb50edSMonk Liu * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16ceeb50edSMonk Liu * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 17ceeb50edSMonk Liu * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 18ceeb50edSMonk Liu * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 19ceeb50edSMonk Liu * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 20ceeb50edSMonk Liu * OTHER DEALINGS IN THE SOFTWARE. 21ceeb50edSMonk Liu * 22ceeb50edSMonk Liu * Author: Monk.liu@amd.com 23ceeb50edSMonk Liu */ 24ceeb50edSMonk Liu #ifndef AMDGPU_VIRT_H 25ceeb50edSMonk Liu #define AMDGPU_VIRT_H 26ceeb50edSMonk Liu 27ceeb50edSMonk Liu #define AMDGPU_SRIOV_CAPS_SRIOV_VBIOS (1 << 0) /* vBIOS is sr-iov ready */ 28ceeb50edSMonk Liu #define AMDGPU_SRIOV_CAPS_ENABLE_IOV (1 << 1) /* sr-iov is enabled on this GPU */ 29ceeb50edSMonk Liu #define AMDGPU_SRIOV_CAPS_IS_VF (1 << 2) /* this GPU is a virtual function */ 30ceeb50edSMonk Liu #define AMDGPU_PASSTHROUGH_MODE (1 << 3) /* thw whole GPU is pass through for VM */ 31bd7de27dSMonk Liu 32ceeb50edSMonk Liu /* GPU virtualization */ 335a5099cbSXiangliang Yu struct amdgpu_virt { 345a5099cbSXiangliang Yu uint32_t caps; 35bd7de27dSMonk Liu struct amdgpu_bo *csa_obj; 36bd7de27dSMonk Liu uint64_t csa_vmid0_addr; 37880e87e3SXiangliang Yu uint32_t reg_val_offs; 38ceeb50edSMonk Liu }; 39ceeb50edSMonk Liu 40bd7de27dSMonk Liu #define AMDGPU_CSA_SIZE (8 * 1024) 41bd7de27dSMonk Liu #define AMDGPU_CSA_VADDR (AMDGPU_VA_RESERVED_SIZE - AMDGPU_CSA_SIZE) 42bd7de27dSMonk Liu 43ceeb50edSMonk Liu #define amdgpu_sriov_enabled(adev) \ 445a5099cbSXiangliang Yu ((adev)->virt.caps & AMDGPU_SRIOV_CAPS_ENABLE_IOV) 45ceeb50edSMonk Liu 46ceeb50edSMonk Liu #define amdgpu_sriov_vf(adev) \ 475a5099cbSXiangliang Yu ((adev)->virt.caps & AMDGPU_SRIOV_CAPS_IS_VF) 48ceeb50edSMonk Liu 49ceeb50edSMonk Liu #define amdgpu_sriov_bios(adev) \ 505a5099cbSXiangliang Yu ((adev)->virt.caps & AMDGPU_SRIOV_CAPS_SRIOV_VBIOS) 51ceeb50edSMonk Liu 52ceeb50edSMonk Liu #define amdgpu_passthrough(adev) \ 535a5099cbSXiangliang Yu ((adev)->virt.caps & AMDGPU_PASSTHROUGH_MODE) 54ceeb50edSMonk Liu 55ceeb50edSMonk Liu static inline bool is_virtual_machine(void) 56ceeb50edSMonk Liu { 57ceeb50edSMonk Liu #ifdef CONFIG_X86 58ceeb50edSMonk Liu return boot_cpu_has(X86_FEATURE_HYPERVISOR); 59ceeb50edSMonk Liu #else 60ceeb50edSMonk Liu return false; 61ceeb50edSMonk Liu #endif 62ceeb50edSMonk Liu } 63ceeb50edSMonk Liu 644e4bbe73SMonk Liu struct amdgpu_vm; 654e4bbe73SMonk Liu int amdgpu_allocate_static_csa(struct amdgpu_device *adev); 664e4bbe73SMonk Liu int amdgpu_map_static_csa(struct amdgpu_device *adev, struct amdgpu_vm *vm); 674e4bbe73SMonk Liu 68ceeb50edSMonk Liu #endif 69