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.
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 {
39 #define AMDGPU_VF_ERROR_ENTRY_SIZE 16
41 /* struct error_entry - amdgpu VF error information. */
42 struct amdgpu_vf_error_buffer {
46 uint16_t code[AMDGPU_VF_ERROR_ENTRY_SIZE];
47 uint16_t flags[AMDGPU_VF_ERROR_ENTRY_SIZE];
48 uint64_t data[AMDGPU_VF_ERROR_ENTRY_SIZE];
52 * struct amdgpu_virt_ops - amdgpu device virt operations
54 struct amdgpu_virt_ops {
55 int (*req_full_gpu)(struct amdgpu_device *adev, bool init);
56 int (*rel_full_gpu)(struct amdgpu_device *adev, bool init);
57 int (*reset_gpu)(struct amdgpu_device *adev);
58 void (*trans_msg)(struct amdgpu_device *adev, u32 req, u32 data1, u32 data2, u32 data3);
61 /* GPU virtualization */
64 struct amdgpu_bo *csa_obj;
65 uint64_t csa_vmid0_addr;
66 bool chained_ib_support;
67 uint32_t reg_val_offs;
68 struct mutex lock_reset;
69 struct amdgpu_irq_src ack_irq;
70 struct amdgpu_irq_src rcv_irq;
71 struct work_struct flr_work;
72 struct amdgpu_mm_table mm_table;
73 const struct amdgpu_virt_ops *ops;
74 struct amdgpu_vf_error_buffer vf_errors;
77 #define AMDGPU_CSA_SIZE (8 * 1024)
78 #define AMDGPU_CSA_VADDR (AMDGPU_VA_RESERVED_SIZE - AMDGPU_CSA_SIZE)
80 #define amdgpu_sriov_enabled(adev) \
81 ((adev)->virt.caps & AMDGPU_SRIOV_CAPS_ENABLE_IOV)
83 #define amdgpu_sriov_vf(adev) \
84 ((adev)->virt.caps & AMDGPU_SRIOV_CAPS_IS_VF)
86 #define amdgpu_sriov_bios(adev) \
87 ((adev)->virt.caps & AMDGPU_SRIOV_CAPS_SRIOV_VBIOS)
89 #define amdgpu_sriov_runtime(adev) \
90 ((adev)->virt.caps & AMDGPU_SRIOV_CAPS_RUNTIME)
92 #define amdgpu_passthrough(adev) \
93 ((adev)->virt.caps & AMDGPU_PASSTHROUGH_MODE)
95 static inline bool is_virtual_machine(void)
98 return boot_cpu_has(X86_FEATURE_HYPERVISOR);
105 int amdgpu_allocate_static_csa(struct amdgpu_device *adev);
106 int amdgpu_map_static_csa(struct amdgpu_device *adev, struct amdgpu_vm *vm,
107 struct amdgpu_bo_va **bo_va);
108 void amdgpu_virt_init_setting(struct amdgpu_device *adev);
109 uint32_t amdgpu_virt_kiq_rreg(struct amdgpu_device *adev, uint32_t reg);
110 void amdgpu_virt_kiq_wreg(struct amdgpu_device *adev, uint32_t reg, uint32_t v);
111 int amdgpu_virt_request_full_gpu(struct amdgpu_device *adev, bool init);
112 int amdgpu_virt_release_full_gpu(struct amdgpu_device *adev, bool init);
113 int amdgpu_virt_reset_gpu(struct amdgpu_device *adev);
114 int amdgpu_sriov_gpu_reset(struct amdgpu_device *adev, struct amdgpu_job *job);
115 int amdgpu_virt_alloc_mm_table(struct amdgpu_device *adev);
116 void amdgpu_virt_free_mm_table(struct amdgpu_device *adev);