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 *
intel_timeline_get(struct intel_timeline * 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);
intel_timeline_put(struct intel_timeline * timeline)50 static inline void intel_timeline_put(struct intel_timeline *timeline)
51 {
52 kref_put(&timeline->kref, __intel_timeline_free);
53 }
54
__intel_timeline_sync_set(struct intel_timeline * tl,u64 context,u32 seqno)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
intel_timeline_sync_set(struct intel_timeline * tl,const struct dma_fence * fence)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
__intel_timeline_sync_is_later(struct intel_timeline * tl,u64 context,u32 seqno)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
intel_timeline_sync_is_later(struct intel_timeline * tl,const struct dma_fence * fence)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
