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/list.h>
29 #include <linux/types.h>
31 #include <linux/kthread.h>
32 #include <linux/workqueue.h>
33 #include <linux/mmu_notifier.h>
34 #include <linux/memremap.h>
35 #include <kgd_kfd_interface.h>
36 #include "amdgpu_sync.h"
37 #include "amdgpu_vm.h"
38 #include "amdgpu_xcp.h"
40 extern uint64_t amdgpu_amdkfd_total_mem_size;
44 TLB_FLUSH_LIGHTWEIGHT,
50 enum kfd_mem_attachment_type {
51 KFD_MEM_ATT_SHARED, /* Share kgd_mem->bo or another attachment's */
52 KFD_MEM_ATT_USERPTR, /* SG bo to DMA map pages from a userptr bo */
53 KFD_MEM_ATT_DMABUF, /* DMAbuf to DMA map TTM BOs */
54 KFD_MEM_ATT_SG /* Tag to DMA map SG BOs */
57 struct kfd_mem_attachment {
58 struct list_head list;
59 enum kfd_mem_attachment_type type;
61 struct amdgpu_bo_va *bo_va;
62 struct amdgpu_device *adev;
70 struct dma_buf *dmabuf;
71 struct hmm_range *range;
72 struct list_head attachments;
73 /* protected by amdkfd_process_info.lock */
74 struct list_head validate_list;
76 unsigned int mapped_to_gpu_memory;
82 struct amdkfd_process_info *process_info;
84 struct amdgpu_sync sync;
90 /* KFD Memory Eviction */
91 struct amdgpu_amdkfd_fence {
92 struct dma_fence base;
95 char timeline_name[TASK_COMM_LEN];
96 struct svm_range_bo *svm_bo;
99 struct amdgpu_kfd_dev {
101 int64_t vram_used[MAX_XCP];
102 uint64_t vram_used_aligned[MAX_XCP];
104 struct work_struct reset_work;
106 /* HMM page migration MEMORY_DEVICE_PRIVATE mapping */
107 struct dev_pagemap pgmap;
110 enum kgd_engine_type {
123 struct amdkfd_process_info {
124 /* List head of all VMs that belong to a KFD process */
125 struct list_head vm_list_head;
126 /* List head for all KFD BOs that belong to a KFD process. */
127 struct list_head kfd_bo_list;
128 /* List of userptr BOs that are valid or invalid */
129 struct list_head userptr_valid_list;
130 struct list_head userptr_inval_list;
131 /* Lock to protect kfd_bo_list */
137 struct amdgpu_amdkfd_fence *eviction_fence;
139 /* MMU-notifier related fields */
140 struct mutex notifier_lock;
141 uint32_t evicted_bos;
142 struct delayed_work restore_userptr_work;
144 bool block_mmu_notifications;
147 int amdgpu_amdkfd_init(void);
148 void amdgpu_amdkfd_fini(void);
150 void amdgpu_amdkfd_suspend(struct amdgpu_device *adev, bool run_pm);
151 int amdgpu_amdkfd_resume_iommu(struct amdgpu_device *adev);
152 int amdgpu_amdkfd_resume(struct amdgpu_device *adev, bool run_pm);
153 void amdgpu_amdkfd_interrupt(struct amdgpu_device *adev,
154 const void *ih_ring_entry);
155 void amdgpu_amdkfd_device_probe(struct amdgpu_device *adev);
156 void amdgpu_amdkfd_device_init(struct amdgpu_device *adev);
157 void amdgpu_amdkfd_device_fini_sw(struct amdgpu_device *adev);
158 int amdgpu_amdkfd_check_and_lock_kfd(struct amdgpu_device *adev);
159 void amdgpu_amdkfd_unlock_kfd(struct amdgpu_device *adev);
160 int amdgpu_amdkfd_submit_ib(struct amdgpu_device *adev,
161 enum kgd_engine_type engine,
162 uint32_t vmid, uint64_t gpu_addr,
163 uint32_t *ib_cmd, uint32_t ib_len);
164 void amdgpu_amdkfd_set_compute_idle(struct amdgpu_device *adev, bool idle);
165 bool amdgpu_amdkfd_have_atomics_support(struct amdgpu_device *adev);
166 int amdgpu_amdkfd_flush_gpu_tlb_vmid(struct amdgpu_device *adev,
168 int amdgpu_amdkfd_flush_gpu_tlb_pasid(struct amdgpu_device *adev,
169 uint16_t pasid, enum TLB_FLUSH_TYPE flush_type,
172 bool amdgpu_amdkfd_is_kfd_vmid(struct amdgpu_device *adev, u32 vmid);
174 int amdgpu_amdkfd_pre_reset(struct amdgpu_device *adev);
176 int amdgpu_amdkfd_post_reset(struct amdgpu_device *adev);
178 void amdgpu_amdkfd_gpu_reset(struct amdgpu_device *adev);
180 int amdgpu_queue_mask_bit_to_set_resource_bit(struct amdgpu_device *adev,
183 struct amdgpu_amdkfd_fence *amdgpu_amdkfd_fence_create(u64 context,
184 struct mm_struct *mm,
185 struct svm_range_bo *svm_bo);
186 #if defined(CONFIG_DEBUG_FS)
187 int kfd_debugfs_kfd_mem_limits(struct seq_file *m, void *data);
189 #if IS_ENABLED(CONFIG_HSA_AMD)
190 bool amdkfd_fence_check_mm(struct dma_fence *f, struct mm_struct *mm);
191 struct amdgpu_amdkfd_fence *to_amdgpu_amdkfd_fence(struct dma_fence *f);
192 int amdgpu_amdkfd_remove_fence_on_pt_pd_bos(struct amdgpu_bo *bo);
193 int amdgpu_amdkfd_evict_userptr(struct mmu_interval_notifier *mni,
194 unsigned long cur_seq, struct kgd_mem *mem);
197 bool amdkfd_fence_check_mm(struct dma_fence *f, struct mm_struct *mm)
203 struct amdgpu_amdkfd_fence *to_amdgpu_amdkfd_fence(struct dma_fence *f)
209 int amdgpu_amdkfd_remove_fence_on_pt_pd_bos(struct amdgpu_bo *bo)
215 int amdgpu_amdkfd_evict_userptr(struct mmu_interval_notifier *mni,
216 unsigned long cur_seq, struct kgd_mem *mem)
222 int amdgpu_amdkfd_alloc_gtt_mem(struct amdgpu_device *adev, size_t size,
223 void **mem_obj, uint64_t *gpu_addr,
224 void **cpu_ptr, bool mqd_gfx9);
225 void amdgpu_amdkfd_free_gtt_mem(struct amdgpu_device *adev, void *mem_obj);
226 int amdgpu_amdkfd_alloc_gws(struct amdgpu_device *adev, size_t size,
228 void amdgpu_amdkfd_free_gws(struct amdgpu_device *adev, void *mem_obj);
229 int amdgpu_amdkfd_add_gws_to_process(void *info, void *gws, struct kgd_mem **mem);
230 int amdgpu_amdkfd_remove_gws_from_process(void *info, void *mem);
231 uint32_t amdgpu_amdkfd_get_fw_version(struct amdgpu_device *adev,
232 enum kgd_engine_type type);
233 void amdgpu_amdkfd_get_local_mem_info(struct amdgpu_device *adev,
234 struct kfd_local_mem_info *mem_info,
235 struct amdgpu_xcp *xcp);
236 uint64_t amdgpu_amdkfd_get_gpu_clock_counter(struct amdgpu_device *adev);
238 uint32_t amdgpu_amdkfd_get_max_engine_clock_in_mhz(struct amdgpu_device *adev);
239 void amdgpu_amdkfd_get_cu_info(struct amdgpu_device *adev,
240 struct kfd_cu_info *cu_info);
241 int amdgpu_amdkfd_get_dmabuf_info(struct amdgpu_device *adev, int dma_buf_fd,
242 struct amdgpu_device **dmabuf_adev,
243 uint64_t *bo_size, void *metadata_buffer,
244 size_t buffer_size, uint32_t *metadata_size,
245 uint32_t *flags, int8_t *xcp_id);
246 uint8_t amdgpu_amdkfd_get_xgmi_hops_count(struct amdgpu_device *dst,
247 struct amdgpu_device *src);
248 int amdgpu_amdkfd_get_xgmi_bandwidth_mbytes(struct amdgpu_device *dst,
249 struct amdgpu_device *src,
251 int amdgpu_amdkfd_get_pcie_bandwidth_mbytes(struct amdgpu_device *adev, bool is_min);
252 int amdgpu_amdkfd_send_close_event_drain_irq(struct amdgpu_device *adev,
255 /* Read user wptr from a specified user address space with page fault
256 * disabled. The memory must be pinned and mapped to the hardware when
257 * this is called in hqd_load functions, so it should never fault in
258 * the first place. This resolves a circular lock dependency involving
259 * four locks, including the DQM lock and mmap_lock.
261 #define read_user_wptr(mmptr, wptr, dst) \
263 bool valid = false; \
264 if ((mmptr) && (wptr)) { \
265 pagefault_disable(); \
266 if ((mmptr) == current->mm) { \
267 valid = !get_user((dst), (wptr)); \
268 } else if (current->flags & PF_KTHREAD) { \
269 kthread_use_mm(mmptr); \
270 valid = !get_user((dst), (wptr)); \
271 kthread_unuse_mm(mmptr); \
273 pagefault_enable(); \
279 #define drm_priv_to_vm(drm_priv) \
280 (&((struct amdgpu_fpriv *) \
281 ((struct drm_file *)(drm_priv))->driver_priv)->vm)
283 int amdgpu_amdkfd_gpuvm_set_vm_pasid(struct amdgpu_device *adev,
284 struct amdgpu_vm *avm, u32 pasid);
285 int amdgpu_amdkfd_gpuvm_acquire_process_vm(struct amdgpu_device *adev,
286 struct amdgpu_vm *avm,
288 struct dma_fence **ef);
289 void amdgpu_amdkfd_gpuvm_release_process_vm(struct amdgpu_device *adev,
291 uint64_t amdgpu_amdkfd_gpuvm_get_process_page_dir(void *drm_priv);
292 size_t amdgpu_amdkfd_get_available_memory(struct amdgpu_device *adev,
294 int amdgpu_amdkfd_gpuvm_alloc_memory_of_gpu(
295 struct amdgpu_device *adev, uint64_t va, uint64_t size,
296 void *drm_priv, struct kgd_mem **mem,
297 uint64_t *offset, uint32_t flags, bool criu_resume);
298 int amdgpu_amdkfd_gpuvm_free_memory_of_gpu(
299 struct amdgpu_device *adev, struct kgd_mem *mem, void *drm_priv,
301 int amdgpu_amdkfd_gpuvm_map_memory_to_gpu(struct amdgpu_device *adev,
302 struct kgd_mem *mem, void *drm_priv);
303 int amdgpu_amdkfd_gpuvm_unmap_memory_from_gpu(
304 struct amdgpu_device *adev, struct kgd_mem *mem, void *drm_priv);
305 int amdgpu_amdkfd_gpuvm_sync_memory(
306 struct amdgpu_device *adev, struct kgd_mem *mem, bool intr);
307 int amdgpu_amdkfd_gpuvm_map_gtt_bo_to_kernel(struct kgd_mem *mem,
308 void **kptr, uint64_t *size);
309 void amdgpu_amdkfd_gpuvm_unmap_gtt_bo_from_kernel(struct kgd_mem *mem);
311 int amdgpu_amdkfd_map_gtt_bo_to_gart(struct amdgpu_device *adev, struct amdgpu_bo *bo);
313 int amdgpu_amdkfd_gpuvm_restore_process_bos(void *process_info,
314 struct dma_fence **ef);
315 int amdgpu_amdkfd_gpuvm_get_vm_fault_info(struct amdgpu_device *adev,
316 struct kfd_vm_fault_info *info);
317 int amdgpu_amdkfd_gpuvm_import_dmabuf(struct amdgpu_device *adev,
318 struct dma_buf *dmabuf,
319 uint64_t va, void *drm_priv,
320 struct kgd_mem **mem, uint64_t *size,
321 uint64_t *mmap_offset);
322 int amdgpu_amdkfd_gpuvm_export_dmabuf(struct kgd_mem *mem,
323 struct dma_buf **dmabuf);
324 void amdgpu_amdkfd_debug_mem_fence(struct amdgpu_device *adev);
325 int amdgpu_amdkfd_get_tile_config(struct amdgpu_device *adev,
326 struct tile_config *config);
327 void amdgpu_amdkfd_ras_poison_consumption_handler(struct amdgpu_device *adev,
329 bool amdgpu_amdkfd_bo_mapped_to_dev(struct amdgpu_device *adev, struct kgd_mem *mem);
330 void amdgpu_amdkfd_block_mmu_notifications(void *p);
331 int amdgpu_amdkfd_criu_resume(void *p);
332 bool amdgpu_amdkfd_ras_query_utcl2_poison_status(struct amdgpu_device *adev);
333 int amdgpu_amdkfd_reserve_mem_limit(struct amdgpu_device *adev,
334 uint64_t size, u32 alloc_flag, int8_t xcp_id);
335 void amdgpu_amdkfd_unreserve_mem_limit(struct amdgpu_device *adev,
336 uint64_t size, u32 alloc_flag, int8_t xcp_id);
338 u64 amdgpu_amdkfd_xcp_memory_size(struct amdgpu_device *adev, int xcp_id);
340 #define KFD_XCP_MEM_ID(adev, xcp_id) \
341 ((adev)->xcp_mgr && (xcp_id) >= 0 ?\
342 (adev)->xcp_mgr->xcp[(xcp_id)].mem_id : -1)
344 #define KFD_XCP_MEMORY_SIZE(adev, xcp_id) amdgpu_amdkfd_xcp_memory_size((adev), (xcp_id))
347 #if IS_ENABLED(CONFIG_HSA_AMD)
348 void amdgpu_amdkfd_gpuvm_init_mem_limits(void);
349 void amdgpu_amdkfd_gpuvm_destroy_cb(struct amdgpu_device *adev,
350 struct amdgpu_vm *vm);
353 * @amdgpu_amdkfd_release_notify() - Notify KFD when GEM object is released
355 * Allows KFD to release its resources associated with the GEM object.
357 void amdgpu_amdkfd_release_notify(struct amdgpu_bo *bo);
358 void amdgpu_amdkfd_reserve_system_mem(uint64_t size);
361 void amdgpu_amdkfd_gpuvm_init_mem_limits(void)
366 void amdgpu_amdkfd_gpuvm_destroy_cb(struct amdgpu_device *adev,
367 struct amdgpu_vm *vm)
372 void amdgpu_amdkfd_release_notify(struct amdgpu_bo *bo)
377 #if IS_ENABLED(CONFIG_HSA_AMD_SVM)
378 int kgd2kfd_init_zone_device(struct amdgpu_device *adev);
381 int kgd2kfd_init_zone_device(struct amdgpu_device *adev)
387 /* KGD2KFD callbacks */
388 int kgd2kfd_quiesce_mm(struct mm_struct *mm, uint32_t trigger);
389 int kgd2kfd_resume_mm(struct mm_struct *mm);
390 int kgd2kfd_schedule_evict_and_restore_process(struct mm_struct *mm,
391 struct dma_fence *fence);
392 #if IS_ENABLED(CONFIG_HSA_AMD)
393 int kgd2kfd_init(void);
394 void kgd2kfd_exit(void);
395 struct kfd_dev *kgd2kfd_probe(struct amdgpu_device *adev, bool vf);
396 bool kgd2kfd_device_init(struct kfd_dev *kfd,
397 const struct kgd2kfd_shared_resources *gpu_resources);
398 void kgd2kfd_device_exit(struct kfd_dev *kfd);
399 void kgd2kfd_suspend(struct kfd_dev *kfd, bool run_pm);
400 int kgd2kfd_resume_iommu(struct kfd_dev *kfd);
401 int kgd2kfd_resume(struct kfd_dev *kfd, bool run_pm);
402 int kgd2kfd_pre_reset(struct kfd_dev *kfd);
403 int kgd2kfd_post_reset(struct kfd_dev *kfd);
404 void kgd2kfd_interrupt(struct kfd_dev *kfd, const void *ih_ring_entry);
405 void kgd2kfd_set_sram_ecc_flag(struct kfd_dev *kfd);
406 void kgd2kfd_smi_event_throttle(struct kfd_dev *kfd, uint64_t throttle_bitmask);
407 int kgd2kfd_check_and_lock_kfd(void);
408 void kgd2kfd_unlock_kfd(void);
410 static inline int kgd2kfd_init(void)
415 static inline void kgd2kfd_exit(void)
420 struct kfd_dev *kgd2kfd_probe(struct amdgpu_device *adev, bool vf)
426 bool kgd2kfd_device_init(struct kfd_dev *kfd,
427 const struct kgd2kfd_shared_resources *gpu_resources)
432 static inline void kgd2kfd_device_exit(struct kfd_dev *kfd)
436 static inline void kgd2kfd_suspend(struct kfd_dev *kfd, bool run_pm)
440 static int __maybe_unused kgd2kfd_resume_iommu(struct kfd_dev *kfd)
445 static inline int kgd2kfd_resume(struct kfd_dev *kfd, bool run_pm)
450 static inline int kgd2kfd_pre_reset(struct kfd_dev *kfd)
455 static inline int kgd2kfd_post_reset(struct kfd_dev *kfd)
461 void kgd2kfd_interrupt(struct kfd_dev *kfd, const void *ih_ring_entry)
466 void kgd2kfd_set_sram_ecc_flag(struct kfd_dev *kfd)
471 void kgd2kfd_smi_event_throttle(struct kfd_dev *kfd, uint64_t throttle_bitmask)
475 static inline int kgd2kfd_check_and_lock_kfd(void)
480 static inline void kgd2kfd_unlock_kfd(void)
484 #endif /* AMDGPU_AMDKFD_H_INCLUDED */