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16e8745967
Since the introduction of 'soft-rc6', we aim to park the device quickly and that results in frequent idling of the whole device. Currently upon idling we free the batch buffer pool, and so this renders the cache ineffective for many workloads. If we want to have an effective cache of recently allocated buffers available for reuse, we need to decouple that cache from the engine powermanagement and make it timer based. As there is no reason then to keep it within the engine (where it once made retirement order easier to track), we can move it up the hierarchy to the owner of the memory allocations. v2: Hook up to debugfs/drop_caches to clear the cache on demand. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200430111819.10262-2-chris@chris-wilson.co.uk
37 lines
950 B
C
37 lines
950 B
C
/* SPDX-License-Identifier: MIT */
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/*
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* Copyright © 2019 Intel Corporation
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*/
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#ifndef __I915_GEM_OBJECT_BLT_H__
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#define __I915_GEM_OBJECT_BLT_H__
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#include <linux/types.h>
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#include "gt/intel_context.h"
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#include "gt/intel_engine_pm.h"
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#include "i915_vma.h"
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struct drm_i915_gem_object;
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struct i915_vma *intel_emit_vma_fill_blt(struct intel_context *ce,
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struct i915_vma *vma,
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u32 value);
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struct i915_vma *intel_emit_vma_copy_blt(struct intel_context *ce,
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struct i915_vma *src,
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struct i915_vma *dst);
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int intel_emit_vma_mark_active(struct i915_vma *vma, struct i915_request *rq);
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void intel_emit_vma_release(struct intel_context *ce, struct i915_vma *vma);
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int i915_gem_object_fill_blt(struct drm_i915_gem_object *obj,
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struct intel_context *ce,
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u32 value);
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int i915_gem_object_copy_blt(struct drm_i915_gem_object *src,
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struct drm_i915_gem_object *dst,
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struct intel_context *ce);
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#endif
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