1 /* 2 * Copyright © 2016 Intel Corporation 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 (including the next 12 * paragraph) shall be included in all copies or substantial portions of the 13 * Software. 14 * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS 21 * IN THE SOFTWARE. 22 * 23 */ 24 25 #ifndef I915_TIMELINE_H 26 #define I915_TIMELINE_H 27 28 #include <linux/lockdep.h> 29 30 #include "i915_active.h" 31 #include "i915_syncmap.h" 32 #include "gt/intel_timeline_types.h" 33 34 int intel_timeline_init(struct intel_timeline *tl, 35 struct intel_gt *gt, 36 struct i915_vma *hwsp); 37 void intel_timeline_fini(struct intel_timeline *tl); 38 39 struct intel_timeline * 40 intel_timeline_create(struct intel_gt *gt, struct i915_vma *global_hwsp); 41 42 static inline struct intel_timeline * 43 intel_timeline_get(struct intel_timeline *timeline) 44 { 45 kref_get(&timeline->kref); 46 return timeline; 47 } 48 49 void __intel_timeline_free(struct kref *kref); 50 static inline void intel_timeline_put(struct intel_timeline *timeline) 51 { 52 kref_put(&timeline->kref, __intel_timeline_free); 53 } 54 55 static inline int __intel_timeline_sync_set(struct intel_timeline *tl, 56 u64 context, u32 seqno) 57 { 58 return i915_syncmap_set(&tl->sync, context, seqno); 59 } 60 61 static inline int intel_timeline_sync_set(struct intel_timeline *tl, 62 const struct dma_fence *fence) 63 { 64 return __intel_timeline_sync_set(tl, fence->context, fence->seqno); 65 } 66 67 static inline bool __intel_timeline_sync_is_later(struct intel_timeline *tl, 68 u64 context, u32 seqno) 69 { 70 return i915_syncmap_is_later(&tl->sync, context, seqno); 71 } 72 73 static inline bool intel_timeline_sync_is_later(struct intel_timeline *tl, 74 const struct dma_fence *fence) 75 { 76 return __intel_timeline_sync_is_later(tl, fence->context, fence->seqno); 77 } 78 79 int intel_timeline_pin(struct intel_timeline *tl); 80 void intel_timeline_enter(struct intel_timeline *tl); 81 int intel_timeline_get_seqno(struct intel_timeline *tl, 82 struct i915_request *rq, 83 u32 *seqno); 84 void intel_timeline_exit(struct intel_timeline *tl); 85 void intel_timeline_unpin(struct intel_timeline *tl); 86 87 int intel_timeline_read_hwsp(struct i915_request *from, 88 struct i915_request *until, 89 u32 *hwsp_offset); 90 91 void intel_timelines_init(struct drm_i915_private *i915); 92 void intel_timelines_fini(struct drm_i915_private *i915); 93 94 #endif 95