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1/* SPDX-License-Identifier: MIT */2/*3 * Copyright © 2016 Intel Corporation4 */5 6#ifndef I915_TIMELINE_H7#define I915_TIMELINE_H8 9#include <linux/lockdep.h>10 11#include "i915_active.h"12#include "i915_syncmap.h"13#include "intel_timeline_types.h"14 15struct drm_printer;16 17struct intel_timeline *18__intel_timeline_create(struct intel_gt *gt,19 struct i915_vma *global_hwsp,20 unsigned int offset);21 22static inline struct intel_timeline *23intel_timeline_create(struct intel_gt *gt)24{25 return __intel_timeline_create(gt, NULL, 0);26}27 28struct intel_timeline *29intel_timeline_create_from_engine(struct intel_engine_cs *engine,30 unsigned int offset);31 32static inline struct intel_timeline *33intel_timeline_get(struct intel_timeline *timeline)34{35 kref_get(&timeline->kref);36 return timeline;37}38 39void __intel_timeline_free(struct kref *kref);40static inline void intel_timeline_put(struct intel_timeline *timeline)41{42 kref_put(&timeline->kref, __intel_timeline_free);43}44 45static inline int __intel_timeline_sync_set(struct intel_timeline *tl,46 u64 context, u32 seqno)47{48 return i915_syncmap_set(&tl->sync, context, seqno);49}50 51static inline int intel_timeline_sync_set(struct intel_timeline *tl,52 const struct dma_fence *fence)53{54 return __intel_timeline_sync_set(tl, fence->context, fence->seqno);55}56 57static inline bool __intel_timeline_sync_is_later(struct intel_timeline *tl,58 u64 context, u32 seqno)59{60 return i915_syncmap_is_later(&tl->sync, context, seqno);61}62 63static 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, fence->context, fence->seqno);67}68 69void __intel_timeline_pin(struct intel_timeline *tl);70int intel_timeline_pin(struct intel_timeline *tl, struct i915_gem_ww_ctx *ww);71void intel_timeline_enter(struct intel_timeline *tl);72int intel_timeline_get_seqno(struct intel_timeline *tl,73 struct i915_request *rq,74 u32 *seqno);75void intel_timeline_exit(struct intel_timeline *tl);76void intel_timeline_unpin(struct intel_timeline *tl);77 78void intel_timeline_reset_seqno(const struct intel_timeline *tl);79 80int intel_timeline_read_hwsp(struct i915_request *from,81 struct i915_request *until,82 u32 *hwsp_offset);83 84void intel_gt_init_timelines(struct intel_gt *gt);85void intel_gt_fini_timelines(struct intel_gt *gt);86 87void 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 94static inline bool95intel_timeline_is_last(const struct intel_timeline *tl,96 const struct i915_request *rq)97{98 return list_is_last_rcu(&rq->link, &tl->requests);99}100 101I915_SELFTEST_DECLARE(int intel_timeline_pin_map(struct intel_timeline *tl));102 103#endif104