1 /* 2 * Copyright 2018 Advanced Micro Devices, Inc. 3 * 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: 10 * 11 * The above copyright notice and this permission notice shall be included in 12 * all copies or substantial portions of the Software. 13 * 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. 21 * 22 */ 23 #ifndef __AMDGPU_CTX_H__ 24 #define __AMDGPU_CTX_H__ 25 26 #include "amdgpu_ring.h" 27 28 struct drm_device; 29 struct drm_file; 30 struct amdgpu_fpriv; 31 32 #define AMDGPU_MAX_ENTITY_NUM 4 33 #define AMDGPU_CTX_FENCE_USAGE_MIN_RATIO(max, total) ((max) > 16384ULL*(total)) 34 35 struct amdgpu_ctx_entity { 36 uint64_t sequence; 37 struct drm_sched_entity entity; 38 struct dma_fence *fences[]; 39 }; 40 41 struct amdgpu_ctx { 42 struct kref refcount; 43 struct amdgpu_device *adev; 44 unsigned reset_counter; 45 unsigned reset_counter_query; 46 uint32_t vram_lost_counter; 47 spinlock_t ring_lock; 48 struct amdgpu_ctx_entity *entities[AMDGPU_HW_IP_NUM][AMDGPU_MAX_ENTITY_NUM]; 49 bool preamble_presented; 50 enum drm_sched_priority init_priority; 51 enum drm_sched_priority override_priority; 52 struct mutex lock; 53 atomic_t guilty; 54 unsigned long ras_counter_ce; 55 unsigned long ras_counter_ue; 56 }; 57 58 struct amdgpu_ctx_mgr { 59 struct amdgpu_device *adev; 60 struct mutex lock; 61 /* protected by lock */ 62 struct idr ctx_handles; 63 }; 64 65 extern const unsigned int amdgpu_ctx_num_entities[AMDGPU_HW_IP_NUM]; 66 67 struct amdgpu_ctx *amdgpu_ctx_get(struct amdgpu_fpriv *fpriv, uint32_t id); 68 int amdgpu_ctx_put(struct amdgpu_ctx *ctx); 69 70 int amdgpu_ctx_get_entity(struct amdgpu_ctx *ctx, u32 hw_ip, u32 instance, 71 u32 ring, struct drm_sched_entity **entity); 72 void amdgpu_ctx_add_fence(struct amdgpu_ctx *ctx, 73 struct drm_sched_entity *entity, 74 struct dma_fence *fence, uint64_t *seq); 75 struct dma_fence *amdgpu_ctx_get_fence(struct amdgpu_ctx *ctx, 76 struct drm_sched_entity *entity, 77 uint64_t seq); 78 void amdgpu_ctx_priority_override(struct amdgpu_ctx *ctx, 79 enum drm_sched_priority priority); 80 81 int amdgpu_ctx_ioctl(struct drm_device *dev, void *data, 82 struct drm_file *filp); 83 84 int amdgpu_ctx_wait_prev_fence(struct amdgpu_ctx *ctx, 85 struct drm_sched_entity *entity); 86 87 void amdgpu_ctx_mgr_init(struct amdgpu_ctx_mgr *mgr); 88 void amdgpu_ctx_mgr_entity_fini(struct amdgpu_ctx_mgr *mgr); 89 long amdgpu_ctx_mgr_entity_flush(struct amdgpu_ctx_mgr *mgr, long timeout); 90 void amdgpu_ctx_mgr_fini(struct amdgpu_ctx_mgr *mgr); 91 ktime_t amdgpu_ctx_mgr_fence_usage(struct amdgpu_ctx_mgr *mgr, uint32_t hwip, 92 uint32_t idx, uint64_t *elapsed); 93 #endif 94