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2f0b97ca02
Some kernel internal objects may need to be allocated as a contiguous block, also thinking ahead the various kernel io_mapping interfaces seem to expect it, although this is purely a limitation in the kernel API...so perhaps something to be improved. Signed-off-by: Matthew Auld <matthew.auld@intel.com> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: Abdiel Janulgue <abdiel.janulgue@linux.intel.com> Cc: Michael J Ruhl <michael.j.ruhl@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/20191008160116.18379-3-matthew.auld@intel.com
29 lines
795 B
C
29 lines
795 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_REGION_H__
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#define __I915_GEM_REGION_H__
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#include <linux/types.h>
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struct intel_memory_region;
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struct drm_i915_gem_object;
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struct sg_table;
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int i915_gem_object_get_pages_buddy(struct drm_i915_gem_object *obj);
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void i915_gem_object_put_pages_buddy(struct drm_i915_gem_object *obj,
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struct sg_table *pages);
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void i915_gem_object_init_memory_region(struct drm_i915_gem_object *obj,
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struct intel_memory_region *mem,
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unsigned long flags);
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void i915_gem_object_release_memory_region(struct drm_i915_gem_object *obj);
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struct drm_i915_gem_object *
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i915_gem_object_create_region(struct intel_memory_region *mem,
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resource_size_t size,
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unsigned int flags);
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#endif
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