| 1 | /* SPDX-License-Identifier: MIT */ | 
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| 2 | /* | 
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| 3 | * Copyright © 2016 Intel Corporation | 
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| 4 | */ | 
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| 5 |  | 
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| 6 | #ifndef I915_TIMELINE_H | 
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| 7 | #define I915_TIMELINE_H | 
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| 8 |  | 
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| 9 | #include <linux/lockdep.h> | 
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| 10 |  | 
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| 11 | #include "i915_active.h" | 
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| 12 | #include "i915_list_util.h" | 
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| 13 | #include "i915_syncmap.h" | 
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| 14 | #include "intel_timeline_types.h" | 
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| 15 |  | 
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| 16 | struct drm_printer; | 
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| 17 |  | 
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| 18 | struct intel_timeline * | 
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| 19 | __intel_timeline_create(struct intel_gt *gt, | 
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| 20 | struct i915_vma *global_hwsp, | 
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| 21 | unsigned int offset); | 
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| 22 |  | 
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| 23 | static inline struct intel_timeline * | 
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| 24 | intel_timeline_create(struct intel_gt *gt) | 
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| 25 | { | 
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| 26 | return __intel_timeline_create(gt, NULL, offset: 0); | 
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| 27 | } | 
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| 28 |  | 
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| 29 | struct intel_timeline * | 
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| 30 | intel_timeline_create_from_engine(struct intel_engine_cs *engine, | 
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| 31 | unsigned int offset); | 
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| 32 |  | 
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| 33 | static inline struct intel_timeline * | 
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| 34 | intel_timeline_get(struct intel_timeline *timeline) | 
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| 35 | { | 
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| 36 | kref_get(kref: &timeline->kref); | 
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| 37 | return timeline; | 
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| 38 | } | 
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| 39 |  | 
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| 40 | void __intel_timeline_free(struct kref *kref); | 
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| 41 | static inline void intel_timeline_put(struct intel_timeline *timeline) | 
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| 42 | { | 
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| 43 | kref_put(kref: &timeline->kref, release: __intel_timeline_free); | 
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| 44 | } | 
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| 45 |  | 
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| 46 | static inline int __intel_timeline_sync_set(struct intel_timeline *tl, | 
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| 47 | u64 context, u32 seqno) | 
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| 48 | { | 
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| 49 | return i915_syncmap_set(root: &tl->sync, id: context, seqno); | 
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| 50 | } | 
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| 51 |  | 
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| 52 | static inline int intel_timeline_sync_set(struct intel_timeline *tl, | 
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| 53 | const struct dma_fence *fence) | 
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| 54 | { | 
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| 55 | return __intel_timeline_sync_set(tl, context: fence->context, seqno: fence->seqno); | 
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| 56 | } | 
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| 57 |  | 
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| 58 | static inline bool __intel_timeline_sync_is_later(struct intel_timeline *tl, | 
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| 59 | u64 context, u32 seqno) | 
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| 60 | { | 
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| 61 | return i915_syncmap_is_later(root: &tl->sync, id: context, seqno); | 
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| 62 | } | 
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| 63 |  | 
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| 64 | static inline bool intel_timeline_sync_is_later(struct intel_timeline *tl, | 
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| 65 | const struct dma_fence *fence) | 
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| 66 | { | 
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| 67 | return __intel_timeline_sync_is_later(tl, context: fence->context, seqno: fence->seqno); | 
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| 68 | } | 
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| 69 |  | 
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| 70 | void __intel_timeline_pin(struct intel_timeline *tl); | 
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| 71 | int intel_timeline_pin(struct intel_timeline *tl, struct i915_gem_ww_ctx *ww); | 
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| 72 | void intel_timeline_enter(struct intel_timeline *tl); | 
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| 73 | int intel_timeline_get_seqno(struct intel_timeline *tl, | 
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| 74 | struct i915_request *rq, | 
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| 75 | u32 *seqno); | 
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| 76 | void intel_timeline_exit(struct intel_timeline *tl); | 
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| 77 | void intel_timeline_unpin(struct intel_timeline *tl); | 
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| 78 |  | 
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| 79 | void intel_timeline_reset_seqno(const struct intel_timeline *tl); | 
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| 80 |  | 
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| 81 | int intel_timeline_read_hwsp(struct i915_request *from, | 
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| 82 | struct i915_request *until, | 
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| 83 | u32 *hwsp_offset); | 
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| 84 |  | 
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| 85 | void intel_gt_init_timelines(struct intel_gt *gt); | 
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| 86 | void intel_gt_fini_timelines(struct intel_gt *gt); | 
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| 87 |  | 
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| 88 | void intel_gt_show_timelines(struct intel_gt *gt, | 
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| 89 | struct drm_printer *m, | 
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| 90 | void (*show_request)(struct drm_printer *m, | 
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| 91 | const struct i915_request *rq, | 
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| 92 | const char *prefix, | 
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| 93 | int indent)); | 
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| 94 |  | 
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| 95 | static inline bool | 
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| 96 | intel_timeline_is_last(const struct intel_timeline *tl, | 
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| 97 | const struct i915_request *rq) | 
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| 98 | { | 
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| 99 | return list_is_last_rcu(list: &rq->link, head: &tl->requests); | 
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| 100 | } | 
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| 101 |  | 
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| 102 | I915_SELFTEST_DECLARE(int intel_timeline_pin_map(struct intel_timeline *tl)); | 
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| 103 |  | 
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| 104 | #endif | 
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| 105 |  | 
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