52 lines
1.3 KiB
C
52 lines
1.3 KiB
C
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/* SPDX-License-Identifier: GPL-2.0-only */
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/**************************************************************************
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* Copyright (c) 2014 Patrik Jakobsson
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* All Rights Reserved.
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*
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**************************************************************************/
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#ifndef _GEM_H
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#define _GEM_H
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#include <linux/kernel.h>
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#include <drm/drm_gem.h>
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struct drm_device;
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/*
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* PSB GEM object
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*/
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struct psb_gem_object {
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struct drm_gem_object base;
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struct resource resource; /* GTT resource for our allocation */
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u32 offset; /* GTT offset of our object */
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int in_gart; /* Currently in the GART (ref ct) */
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bool stolen; /* Backed from stolen RAM */
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bool mmapping; /* Is mmappable */
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struct page **pages; /* Backing pages if present */
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};
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static inline struct psb_gem_object *to_psb_gem_object(struct drm_gem_object *obj)
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{
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return container_of(obj, struct psb_gem_object, base);
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}
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struct psb_gem_object *
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psb_gem_create(struct drm_device *dev, u64 size, const char *name, bool stolen, u32 align);
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int psb_gem_pin(struct psb_gem_object *pobj);
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void psb_gem_unpin(struct psb_gem_object *pobj);
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/*
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* Memory management
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*/
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int psb_gem_mm_init(struct drm_device *dev);
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void psb_gem_mm_fini(struct drm_device *dev);
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int psb_gem_mm_resume(struct drm_device *dev);
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#endif
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