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 */
32struct 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
48static 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#