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