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39e2f501c1
This complex struct pulling in half the driver deserves its own isolation in preparation for intel_context becoming an outright complicated class of its own. In order to split this beast into its own header also requests splitting several of its dependent types and their dependencies into their own headers as well. v2: Add standalone compilation tests 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/20190308132522.21573-2-chris@chris-wilson.co.uk
129 lines
4.1 KiB
C
129 lines
4.1 KiB
C
/*
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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_syncmap.h"
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#include "i915_timeline_types.h"
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int i915_timeline_init(struct drm_i915_private *i915,
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struct i915_timeline *tl,
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const char *name,
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struct i915_vma *hwsp);
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void i915_timeline_fini(struct i915_timeline *tl);
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static inline void
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i915_timeline_set_subclass(struct i915_timeline *timeline,
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unsigned int subclass)
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{
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lockdep_set_subclass(&timeline->lock, subclass);
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/*
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* Due to an interesting quirk in lockdep's internal debug tracking,
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* after setting a subclass we must ensure the lock is used. Otherwise,
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* nr_unused_locks is incremented once too often.
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*/
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#ifdef CONFIG_DEBUG_LOCK_ALLOC
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local_irq_disable();
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lock_map_acquire(&timeline->lock.dep_map);
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lock_map_release(&timeline->lock.dep_map);
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local_irq_enable();
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#endif
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}
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struct i915_timeline *
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i915_timeline_create(struct drm_i915_private *i915,
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const char *name,
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struct i915_vma *global_hwsp);
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static inline struct i915_timeline *
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i915_timeline_get(struct i915_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 __i915_timeline_free(struct kref *kref);
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static inline void i915_timeline_put(struct i915_timeline *timeline)
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{
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kref_put(&timeline->kref, __i915_timeline_free);
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}
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static inline int __i915_timeline_sync_set(struct i915_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 i915_timeline_sync_set(struct i915_timeline *tl,
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const struct dma_fence *fence)
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{
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return __i915_timeline_sync_set(tl, fence->context, fence->seqno);
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}
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static inline bool __i915_timeline_sync_is_later(struct i915_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 i915_timeline_sync_is_later(struct i915_timeline *tl,
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const struct dma_fence *fence)
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{
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return __i915_timeline_sync_is_later(tl, fence->context, fence->seqno);
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}
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int i915_timeline_pin(struct i915_timeline *tl);
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int i915_timeline_get_seqno(struct i915_timeline *tl,
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struct i915_request *rq,
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u32 *seqno);
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void i915_timeline_unpin(struct i915_timeline *tl);
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int i915_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 i915_timelines_init(struct drm_i915_private *i915);
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void i915_timelines_park(struct drm_i915_private *i915);
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void i915_timelines_fini(struct drm_i915_private *i915);
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/**
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* i915_timeline_set_barrier - orders submission between different timelines
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* @timeline: timeline to set the barrier on
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* @rq: request after which new submissions can proceed
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*
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* Sets the passed in request as the serialization point for all subsequent
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* submissions on @timeline. Subsequent requests will not be submitted to GPU
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* until the barrier has been completed.
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*/
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static inline int
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i915_timeline_set_barrier(struct i915_timeline *tl, struct i915_request *rq)
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{
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return i915_active_request_set(&tl->barrier, rq);
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}
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#endif
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