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git.proxmox.com Git - mirror_ubuntu-jammy-kernel.git/blob - drivers/gpu/drm/amd/amdgpu/amdgpu_virt.h
2 * Copyright 2016 Advanced Micro Devices, Inc.
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:
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
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.
22 * Author: Monk.liu@amd.com
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 #define AMDGPU_SRIOV_CAPS_RUNTIME (1 << 4) /* is out of full access mode */
33 struct amdgpu_mm_table
{
40 * struct amdgpu_virt_ops - amdgpu device virt operations
42 struct amdgpu_virt_ops
{
43 int (*req_full_gpu
)(struct amdgpu_device
*adev
, bool init
);
44 int (*rel_full_gpu
)(struct amdgpu_device
*adev
, bool init
);
45 int (*reset_gpu
)(struct amdgpu_device
*adev
);
48 /* GPU virtualization */
51 struct amdgpu_bo
*csa_obj
;
52 uint64_t csa_vmid0_addr
;
53 bool chained_ib_support
;
54 uint32_t reg_val_offs
;
55 struct mutex lock_kiq
;
56 struct mutex lock_reset
;
57 struct amdgpu_irq_src ack_irq
;
58 struct amdgpu_irq_src rcv_irq
;
59 struct work_struct flr_work
;
60 struct amdgpu_mm_table mm_table
;
61 const struct amdgpu_virt_ops
*ops
;
64 #define AMDGPU_CSA_SIZE (8 * 1024)
65 #define AMDGPU_CSA_VADDR (AMDGPU_VA_RESERVED_SIZE - AMDGPU_CSA_SIZE)
67 #define amdgpu_sriov_enabled(adev) \
68 ((adev)->virt.caps & AMDGPU_SRIOV_CAPS_ENABLE_IOV)
70 #define amdgpu_sriov_vf(adev) \
71 ((adev)->virt.caps & AMDGPU_SRIOV_CAPS_IS_VF)
73 #define amdgpu_sriov_bios(adev) \
74 ((adev)->virt.caps & AMDGPU_SRIOV_CAPS_SRIOV_VBIOS)
76 #define amdgpu_sriov_runtime(adev) \
77 ((adev)->virt.caps & AMDGPU_SRIOV_CAPS_RUNTIME)
79 #define amdgpu_passthrough(adev) \
80 ((adev)->virt.caps & AMDGPU_PASSTHROUGH_MODE)
82 static inline bool is_virtual_machine(void)
85 return boot_cpu_has(X86_FEATURE_HYPERVISOR
);
92 int amdgpu_allocate_static_csa(struct amdgpu_device
*adev
);
93 int amdgpu_map_static_csa(struct amdgpu_device
*adev
, struct amdgpu_vm
*vm
);
94 void amdgpu_virt_init_setting(struct amdgpu_device
*adev
);
95 uint32_t amdgpu_virt_kiq_rreg(struct amdgpu_device
*adev
, uint32_t reg
);
96 void amdgpu_virt_kiq_wreg(struct amdgpu_device
*adev
, uint32_t reg
, uint32_t v
);
97 int amdgpu_virt_request_full_gpu(struct amdgpu_device
*adev
, bool init
);
98 int amdgpu_virt_release_full_gpu(struct amdgpu_device
*adev
, bool init
);
99 int amdgpu_virt_reset_gpu(struct amdgpu_device
*adev
);
100 int amdgpu_sriov_gpu_reset(struct amdgpu_device
*adev
, bool voluntary
);