diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_virt.h')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_virt.h | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.h new file mode 100644 index 000000000000..2c37a374917f --- /dev/null +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.h @@ -0,0 +1,57 @@ +/* + * 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 + +#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 */ +/* GPU virtualization */ +struct amdgpu_virtualization { + uint32_t virtual_caps; +}; + +#define amdgpu_sriov_enabled(adev) \ +((adev)->virtualization.virtual_caps & AMDGPU_SRIOV_CAPS_ENABLE_IOV) + +#define amdgpu_sriov_vf(adev) \ +((adev)->virtualization.virtual_caps & AMDGPU_SRIOV_CAPS_IS_VF) + +#define amdgpu_sriov_bios(adev) \ +((adev)->virtualization.virtual_caps & AMDGPU_SRIOV_CAPS_SRIOV_VBIOS) + +#define amdgpu_passthrough(adev) \ +((adev)->virtualization.virtual_caps & AMDGPU_PASSTHROUGH_MODE) + +static inline bool is_virtual_machine(void) +{ +#ifdef CONFIG_X86 + return boot_cpu_has(X86_FEATURE_HYPERVISOR); +#else + return false; +#endif +} + +#endif
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