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a89d1f921c
We need to move to a more flexible timeline that doesn't assume one fence context per engine, and so allow for a single timeline to be used across a combination of engines. This means that preallocating a fence context per engine is now a hindrance, and so we want to introduce the singular timeline. From the code perspective, this has the notable advantage of clearing up a lot of mirky semantics and some clumsy pointer chasing. By splitting the timeline up into a single entity rather than an array of per-engine timelines, we can realise the goal of the previous patch of tracking the timeline alongside the ring. v2: Tweak wait_for_idle to stop the compiling thinking that ret may be uninitialised. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180502163839.3248-2-chris@chris-wilson.co.uk
28 lines
547 B
C
28 lines
547 B
C
/*
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* SPDX-License-Identifier: MIT
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*
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* Copyright © 2017-2018 Intel Corporation
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*/
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#include "../i915_timeline.h"
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#include "mock_timeline.h"
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void mock_timeline_init(struct i915_timeline *timeline, u64 context)
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{
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timeline->fence_context = context;
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spin_lock_init(&timeline->lock);
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init_request_active(&timeline->last_request, NULL);
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INIT_LIST_HEAD(&timeline->requests);
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i915_syncmap_init(&timeline->sync);
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INIT_LIST_HEAD(&timeline->link);
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}
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void mock_timeline_fini(struct i915_timeline *timeline)
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{
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i915_timeline_fini(timeline);
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}
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