/*
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* Copyright © 2016 Intel Corporation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*
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*/
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#ifndef I915_TIMELINE_H
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#define I915_TIMELINE_H
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#include <linux/lockdep.h>
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#include "i915_active.h"
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#include "i915_syncmap.h"
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#include "intel_timeline_types.h"
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struct intel_timeline *
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__intel_timeline_create(struct intel_gt *gt,
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struct i915_vma *global_hwsp,
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unsigned int offset);
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static inline struct intel_timeline *
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intel_timeline_create(struct intel_gt *gt)
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{
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return __intel_timeline_create(gt, NULL, 0);
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}
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static inline struct intel_timeline *
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intel_timeline_create_from_engine(struct intel_engine_cs *engine,
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unsigned int offset)
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{
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return __intel_timeline_create(engine->gt,
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engine->status_page.vma,
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offset);
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}
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static inline struct intel_timeline *
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intel_timeline_get(struct intel_timeline *timeline)
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{
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kref_get(&timeline->kref);
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return timeline;
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}
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void __intel_timeline_free(struct kref *kref);
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static inline void intel_timeline_put(struct intel_timeline *timeline)
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{
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kref_put(&timeline->kref, __intel_timeline_free);
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}
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static inline int __intel_timeline_sync_set(struct intel_timeline *tl,
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u64 context, u32 seqno)
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{
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return i915_syncmap_set(&tl->sync, context, seqno);
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}
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static inline int intel_timeline_sync_set(struct intel_timeline *tl,
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const struct dma_fence *fence)
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{
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return __intel_timeline_sync_set(tl, fence->context, fence->seqno);
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}
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static inline bool __intel_timeline_sync_is_later(struct intel_timeline *tl,
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u64 context, u32 seqno)
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{
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return i915_syncmap_is_later(&tl->sync, context, seqno);
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}
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static inline bool intel_timeline_sync_is_later(struct intel_timeline *tl,
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const struct dma_fence *fence)
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{
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return __intel_timeline_sync_is_later(tl, fence->context, fence->seqno);
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}
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void __intel_timeline_pin(struct intel_timeline *tl);
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int intel_timeline_pin(struct intel_timeline *tl, struct i915_gem_ww_ctx *ww);
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void intel_timeline_enter(struct intel_timeline *tl);
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int intel_timeline_get_seqno(struct intel_timeline *tl,
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struct i915_request *rq,
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u32 *seqno);
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void intel_timeline_exit(struct intel_timeline *tl);
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void intel_timeline_unpin(struct intel_timeline *tl);
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void intel_timeline_reset_seqno(const struct intel_timeline *tl);
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int intel_timeline_read_hwsp(struct i915_request *from,
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struct i915_request *until,
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u32 *hwsp_offset);
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void intel_gt_init_timelines(struct intel_gt *gt);
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void intel_gt_fini_timelines(struct intel_gt *gt);
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#endif
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