cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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gem.h (1284B)

      1/* SPDX-License-Identifier: GPL-2.0-only */
      2/**************************************************************************
      3 * Copyright (c) 2014 Patrik Jakobsson
      4 * All Rights Reserved.
      5 *
      6 **************************************************************************/
      7
      8#ifndef _GEM_H
      9#define _GEM_H
     10
     11#include <linux/kernel.h>
     12
     13#include <drm/drm_gem.h>
     14
     15struct drm_device;
     16
     17/*
     18 * PSB GEM object
     19 */
     20
     21struct psb_gem_object {
     22	struct drm_gem_object base;
     23
     24	struct resource resource;	/* GTT resource for our allocation */
     25	u32 offset;			/* GTT offset of our object */
     26	int in_gart;			/* Currently in the GART (ref ct) */
     27	bool stolen;			/* Backed from stolen RAM */
     28	bool mmapping;			/* Is mmappable */
     29	struct page **pages;		/* Backing pages if present */
     30};
     31
     32static inline struct psb_gem_object *to_psb_gem_object(struct drm_gem_object *obj)
     33{
     34	return container_of(obj, struct psb_gem_object, base);
     35}
     36
     37struct psb_gem_object *
     38psb_gem_create(struct drm_device *dev, u64 size, const char *name, bool stolen, u32 align);
     39
     40int psb_gem_pin(struct psb_gem_object *pobj);
     41void psb_gem_unpin(struct psb_gem_object *pobj);
     42
     43/*
     44 * Memory management
     45 */
     46
     47int psb_gem_mm_init(struct drm_device *dev);
     48void psb_gem_mm_fini(struct drm_device *dev);
     49int psb_gem_mm_resume(struct drm_device *dev);
     50
     51#endif