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21950ee7cc
Looking forward, we need to break the struct_mutex dependency on i915_gem_active. In the meantime, external use of i915_gem_active is quite beguiling, little do new users suspect that it implies a barrier as each request it tracks must be ordered wrt the previous one. As one of many, it can be used to track activity across multiple timelines, a shared fence, which fits our unordered request submission much better. We need to steer external users away from the singular, exclusive fence imposed by i915_gem_active to i915_active instead. As part of that process, we move i915_gem_active out of i915_request.c into i915_active.c to start separating the two concepts, and rename it to i915_active_request (both to tie it to the concept of tracking just one request, and to give it a longer, less appealing name). Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190205130005.2807-5-chris@chris-wilson.co.uk
31 lines
613 B
C
31 lines
613 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->i915 = NULL;
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timeline->fence_context = context;
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spin_lock_init(&timeline->lock);
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INIT_ACTIVE_REQUEST(&timeline->barrier);
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INIT_ACTIVE_REQUEST(&timeline->last_request);
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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_syncmap_free(&timeline->sync);
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}
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