8f47c8c3b0
In a few places we always end up mapping the pool object with the FORCE constraint(to prevent hitting -EBUSY) which will destroy the cached mapping if it has a different type. As a simple first step, make the mapping type part of the pool interface, where the behaviour is to only give out pool objects which match the requested mapping type. Suggested-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Matthew Auld <matthew.auld@intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Link: https://patchwork.freedesktop.org/patch/msgid/20210119133106.66294-4-matthew.auld@intel.com
38 lines
907 B
C
38 lines
907 B
C
/* SPDX-License-Identifier: MIT */
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/*
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* Copyright © 2014-2018 Intel Corporation
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*/
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#ifndef INTEL_GT_BUFFER_POOL_H
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#define INTEL_GT_BUFFER_POOL_H
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#include <linux/types.h>
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#include "i915_active.h"
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#include "intel_gt_buffer_pool_types.h"
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struct intel_gt;
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struct i915_request;
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struct intel_gt_buffer_pool_node *
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intel_gt_get_buffer_pool(struct intel_gt *gt, size_t size,
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enum i915_map_type type);
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static inline int
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intel_gt_buffer_pool_mark_active(struct intel_gt_buffer_pool_node *node,
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struct i915_request *rq)
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{
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return i915_active_add_request(&node->active, rq);
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}
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static inline void
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intel_gt_buffer_pool_put(struct intel_gt_buffer_pool_node *node)
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{
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i915_active_release(&node->active);
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}
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void intel_gt_init_buffer_pool(struct intel_gt *gt);
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void intel_gt_flush_buffer_pool(struct intel_gt *gt);
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void intel_gt_fini_buffer_pool(struct intel_gt *gt);
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#endif /* INTEL_GT_BUFFER_POOL_H */
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