ecbf206048
For the ttm backend we can use existing placements fpfn and lpfn to force the allocator to place the object at the requested offset, potentially evicting stuff if the spot is currently occupied. Signed-off-by: Matthew Auld <matthew.auld@intel.com> Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com> Reviewed-by: Nirmoy Das <nirmoy.das@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220315181425.576828-5-matthew.auld@intel.com
44 lines
1.1 KiB
C
44 lines
1.1 KiB
C
/* SPDX-License-Identifier: MIT */
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/*
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* Copyright © 2021 Intel Corporation
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*/
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#ifndef _INTEL_REGION_TTM_H_
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#define _INTEL_REGION_TTM_H_
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#include <linux/types.h>
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#include "i915_selftest.h"
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struct drm_i915_private;
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struct intel_memory_region;
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struct ttm_resource;
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struct ttm_device_funcs;
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int intel_region_ttm_device_init(struct drm_i915_private *dev_priv);
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void intel_region_ttm_device_fini(struct drm_i915_private *dev_priv);
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int intel_region_ttm_init(struct intel_memory_region *mem);
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int intel_region_ttm_fini(struct intel_memory_region *mem);
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struct i915_refct_sgt *
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intel_region_ttm_resource_to_rsgt(struct intel_memory_region *mem,
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struct ttm_resource *res);
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void intel_region_ttm_resource_free(struct intel_memory_region *mem,
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struct ttm_resource *res);
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int intel_region_to_ttm_type(const struct intel_memory_region *mem);
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struct ttm_device_funcs *i915_ttm_driver(void);
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#ifdef CONFIG_DRM_I915_SELFTEST
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struct ttm_resource *
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intel_region_ttm_resource_alloc(struct intel_memory_region *mem,
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resource_size_t offset,
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resource_size_t size,
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unsigned int flags);
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#endif
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#endif /* _INTEL_REGION_TTM_H_ */
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