2 * Copyright 2014 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.
23 /* amdgpu_amdkfd.h defines the private interface between amdgpu and amdkfd. */
25 #ifndef AMDGPU_AMDKFD_H_INCLUDED
26 #define AMDGPU_AMDKFD_H_INCLUDED
28 #include <linux/types.h>
30 #include <linux/workqueue.h>
31 #include <kgd_kfd_interface.h>
32 #include <drm/ttm/ttm_execbuf_util.h>
33 #include "amdgpu_sync.h"
34 #include "amdgpu_vm.h"
36 extern uint64_t amdgpu_amdkfd_total_mem_size;
40 struct kfd_bo_va_list {
41 struct list_head bo_list;
42 struct amdgpu_bo_va *bo_va;
52 struct list_head bo_va_list;
53 /* protected by amdkfd_process_info.lock */
54 struct ttm_validate_buffer validate_list;
55 struct ttm_validate_buffer resv_list;
57 unsigned int mapped_to_gpu_memory;
60 uint32_t mapping_flags;
63 struct amdkfd_process_info *process_info;
65 struct amdgpu_sync sync;
70 /* KFD Memory Eviction */
71 struct amdgpu_amdkfd_fence {
72 struct dma_fence base;
75 char timeline_name[TASK_COMM_LEN];
78 struct amdgpu_kfd_dev {
83 enum kgd_engine_type {
95 struct amdgpu_amdkfd_fence *amdgpu_amdkfd_fence_create(u64 context,
96 struct mm_struct *mm);
97 bool amdkfd_fence_check_mm(struct dma_fence *f, struct mm_struct *mm);
98 struct amdgpu_amdkfd_fence *to_amdgpu_amdkfd_fence(struct dma_fence *f);
100 struct amdkfd_process_info {
101 /* List head of all VMs that belong to a KFD process */
102 struct list_head vm_list_head;
103 /* List head for all KFD BOs that belong to a KFD process. */
104 struct list_head kfd_bo_list;
105 /* List of userptr BOs that are valid or invalid */
106 struct list_head userptr_valid_list;
107 struct list_head userptr_inval_list;
108 /* Lock to protect kfd_bo_list */
114 struct amdgpu_amdkfd_fence *eviction_fence;
116 /* MMU-notifier related fields */
117 atomic_t evicted_bos;
118 struct delayed_work restore_userptr_work;
122 int amdgpu_amdkfd_init(void);
123 void amdgpu_amdkfd_fini(void);
125 void amdgpu_amdkfd_suspend(struct amdgpu_device *adev);
126 int amdgpu_amdkfd_resume(struct amdgpu_device *adev);
127 void amdgpu_amdkfd_interrupt(struct amdgpu_device *adev,
128 const void *ih_ring_entry);
129 void amdgpu_amdkfd_device_probe(struct amdgpu_device *adev);
130 void amdgpu_amdkfd_device_init(struct amdgpu_device *adev);
131 void amdgpu_amdkfd_device_fini(struct amdgpu_device *adev);
133 int amdgpu_amdkfd_evict_userptr(struct kgd_mem *mem, struct mm_struct *mm);
134 int amdgpu_amdkfd_submit_ib(struct kgd_dev *kgd, enum kgd_engine_type engine,
135 uint32_t vmid, uint64_t gpu_addr,
136 uint32_t *ib_cmd, uint32_t ib_len);
137 void amdgpu_amdkfd_set_compute_idle(struct kgd_dev *kgd, bool idle);
138 bool amdgpu_amdkfd_have_atomics_support(struct kgd_dev *kgd);
140 struct kfd2kgd_calls *amdgpu_amdkfd_gfx_7_get_functions(void);
141 struct kfd2kgd_calls *amdgpu_amdkfd_gfx_8_0_get_functions(void);
142 struct kfd2kgd_calls *amdgpu_amdkfd_gfx_9_0_get_functions(void);
143 struct kfd2kgd_calls *amdgpu_amdkfd_gfx_10_0_get_functions(void);
145 bool amdgpu_amdkfd_is_kfd_vmid(struct amdgpu_device *adev, u32 vmid);
147 int amdgpu_amdkfd_pre_reset(struct amdgpu_device *adev);
149 int amdgpu_amdkfd_post_reset(struct amdgpu_device *adev);
151 void amdgpu_amdkfd_gpu_reset(struct kgd_dev *kgd);
154 int amdgpu_amdkfd_alloc_gtt_mem(struct kgd_dev *kgd, size_t size,
155 void **mem_obj, uint64_t *gpu_addr,
156 void **cpu_ptr, bool mqd_gfx9);
157 void amdgpu_amdkfd_free_gtt_mem(struct kgd_dev *kgd, void *mem_obj);
158 int amdgpu_amdkfd_alloc_gws(struct kgd_dev *kgd, size_t size, void **mem_obj);
159 void amdgpu_amdkfd_free_gws(struct kgd_dev *kgd, void *mem_obj);
160 int amdgpu_amdkfd_add_gws_to_process(void *info, void *gws, struct kgd_mem **mem);
161 int amdgpu_amdkfd_remove_gws_from_process(void *info, void *mem);
162 uint32_t amdgpu_amdkfd_get_fw_version(struct kgd_dev *kgd,
163 enum kgd_engine_type type);
164 void amdgpu_amdkfd_get_local_mem_info(struct kgd_dev *kgd,
165 struct kfd_local_mem_info *mem_info);
166 uint64_t amdgpu_amdkfd_get_gpu_clock_counter(struct kgd_dev *kgd);
168 uint32_t amdgpu_amdkfd_get_max_engine_clock_in_mhz(struct kgd_dev *kgd);
169 void amdgpu_amdkfd_get_cu_info(struct kgd_dev *kgd, struct kfd_cu_info *cu_info);
170 int amdgpu_amdkfd_get_dmabuf_info(struct kgd_dev *kgd, int dma_buf_fd,
171 struct kgd_dev **dmabuf_kgd,
172 uint64_t *bo_size, void *metadata_buffer,
173 size_t buffer_size, uint32_t *metadata_size,
175 uint64_t amdgpu_amdkfd_get_vram_usage(struct kgd_dev *kgd);
176 uint64_t amdgpu_amdkfd_get_hive_id(struct kgd_dev *kgd);
177 uint64_t amdgpu_amdkfd_get_mmio_remap_phys_addr(struct kgd_dev *kgd);
178 uint32_t amdgpu_amdkfd_get_num_gws(struct kgd_dev *kgd);
179 uint8_t amdgpu_amdkfd_get_xgmi_hops_count(struct kgd_dev *dst, struct kgd_dev *src);
181 #define read_user_wptr(mmptr, wptr, dst) \
183 bool valid = false; \
184 if ((mmptr) && (wptr)) { \
185 if ((mmptr) == current->mm) { \
186 valid = !get_user((dst), (wptr)); \
187 } else if (current->mm == NULL) { \
189 valid = !get_user((dst), (wptr)); \
197 int amdgpu_amdkfd_gpuvm_create_process_vm(struct kgd_dev *kgd, unsigned int pasid,
198 void **vm, void **process_info,
199 struct dma_fence **ef);
200 int amdgpu_amdkfd_gpuvm_acquire_process_vm(struct kgd_dev *kgd,
201 struct file *filp, unsigned int pasid,
202 void **vm, void **process_info,
203 struct dma_fence **ef);
204 void amdgpu_amdkfd_gpuvm_destroy_cb(struct amdgpu_device *adev,
205 struct amdgpu_vm *vm);
206 void amdgpu_amdkfd_gpuvm_destroy_process_vm(struct kgd_dev *kgd, void *vm);
207 void amdgpu_amdkfd_gpuvm_release_process_vm(struct kgd_dev *kgd, void *vm);
208 uint64_t amdgpu_amdkfd_gpuvm_get_process_page_dir(void *vm);
209 int amdgpu_amdkfd_gpuvm_alloc_memory_of_gpu(
210 struct kgd_dev *kgd, uint64_t va, uint64_t size,
211 void *vm, struct kgd_mem **mem,
212 uint64_t *offset, uint32_t flags);
213 int amdgpu_amdkfd_gpuvm_free_memory_of_gpu(
214 struct kgd_dev *kgd, struct kgd_mem *mem);
215 int amdgpu_amdkfd_gpuvm_map_memory_to_gpu(
216 struct kgd_dev *kgd, struct kgd_mem *mem, void *vm);
217 int amdgpu_amdkfd_gpuvm_unmap_memory_from_gpu(
218 struct kgd_dev *kgd, struct kgd_mem *mem, void *vm);
219 int amdgpu_amdkfd_gpuvm_sync_memory(
220 struct kgd_dev *kgd, struct kgd_mem *mem, bool intr);
221 int amdgpu_amdkfd_gpuvm_map_gtt_bo_to_kernel(struct kgd_dev *kgd,
222 struct kgd_mem *mem, void **kptr, uint64_t *size);
223 int amdgpu_amdkfd_gpuvm_restore_process_bos(void *process_info,
224 struct dma_fence **ef);
226 int amdgpu_amdkfd_gpuvm_get_vm_fault_info(struct kgd_dev *kgd,
227 struct kfd_vm_fault_info *info);
229 int amdgpu_amdkfd_gpuvm_import_dmabuf(struct kgd_dev *kgd,
230 struct dma_buf *dmabuf,
231 uint64_t va, void *vm,
232 struct kgd_mem **mem, uint64_t *size,
233 uint64_t *mmap_offset);
235 void amdgpu_amdkfd_gpuvm_init_mem_limits(void);
236 void amdgpu_amdkfd_unreserve_memory_limit(struct amdgpu_bo *bo);
238 /* KGD2KFD callbacks */
239 int kgd2kfd_init(void);
240 void kgd2kfd_exit(void);
241 struct kfd_dev *kgd2kfd_probe(struct kgd_dev *kgd, struct pci_dev *pdev,
242 const struct kfd2kgd_calls *f2g);
243 bool kgd2kfd_device_init(struct kfd_dev *kfd,
244 const struct kgd2kfd_shared_resources *gpu_resources);
245 void kgd2kfd_device_exit(struct kfd_dev *kfd);
246 void kgd2kfd_suspend(struct kfd_dev *kfd);
247 int kgd2kfd_resume(struct kfd_dev *kfd);
248 int kgd2kfd_pre_reset(struct kfd_dev *kfd);
249 int kgd2kfd_post_reset(struct kfd_dev *kfd);
250 void kgd2kfd_interrupt(struct kfd_dev *kfd, const void *ih_ring_entry);
251 int kgd2kfd_quiesce_mm(struct mm_struct *mm);
252 int kgd2kfd_resume_mm(struct mm_struct *mm);
253 int kgd2kfd_schedule_evict_and_restore_process(struct mm_struct *mm,
254 struct dma_fence *fence);
255 void kgd2kfd_set_sram_ecc_flag(struct kfd_dev *kfd);
257 #endif /* AMDGPU_AMDKFD_H_INCLUDED */