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As we do not have any internal priority levels, the priority can be set directed from the user values. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Andi Shyti <andi.shyti@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210120121439.17600-2-chris@chris-wilson.co.uk Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
47 lines
1.3 KiB
C
47 lines
1.3 KiB
C
/*
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* SPDX-License-Identifier: MIT
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*
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* Copyright © 2018 Intel Corporation
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*/
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#ifndef _I915_PRIOLIST_TYPES_H_
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#define _I915_PRIOLIST_TYPES_H_
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#include <linux/list.h>
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#include <linux/rbtree.h>
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#include <uapi/drm/i915_drm.h>
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enum {
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I915_PRIORITY_MIN = I915_CONTEXT_MIN_USER_PRIORITY - 1,
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I915_PRIORITY_NORMAL = I915_CONTEXT_DEFAULT_PRIORITY,
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I915_PRIORITY_MAX = I915_CONTEXT_MAX_USER_PRIORITY + 1,
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/* A preemptive pulse used to monitor the health of each engine */
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I915_PRIORITY_HEARTBEAT,
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/* Interactive workload, scheduled for immediate pageflipping */
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I915_PRIORITY_DISPLAY,
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};
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/* Smallest priority value that cannot be bumped. */
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#define I915_PRIORITY_INVALID (INT_MIN)
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/*
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* Requests containing performance queries must not be preempted by
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* another context. They get scheduled with their default priority and
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* once they reach the execlist ports we ensure that they stick on the
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* HW until finished by pretending that they have maximum priority,
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* i.e. nothing can have higher priority and force us to usurp the
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* active request.
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*/
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#define I915_PRIORITY_UNPREEMPTABLE INT_MAX
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#define I915_PRIORITY_BARRIER (I915_PRIORITY_UNPREEMPTABLE - 1)
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struct i915_priolist {
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struct list_head requests;
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struct rb_node node;
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int priority;
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};
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#endif /* _I915_PRIOLIST_TYPES_H_ */
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