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