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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dca.h (1922B)

      1/* SPDX-License-Identifier: GPL-2.0-or-later */
      2/*
      3 * Copyright(c) 2007 - 2009 Intel Corporation. All rights reserved.
      4 */
      5#ifndef DCA_H
      6#define DCA_H
      7
      8#include <linux/pci.h>
      9
     10/* DCA Provider API */
     11
     12/* DCA Notifier Interface */
     13void dca_register_notify(struct notifier_block *nb);
     14void dca_unregister_notify(struct notifier_block *nb);
     15
     16#define DCA_PROVIDER_ADD     0x0001
     17#define DCA_PROVIDER_REMOVE  0x0002
     18
     19struct dca_provider {
     20	struct list_head	node;
     21	const struct dca_ops	*ops;
     22	struct device 		*cd;
     23	int			 id;
     24};
     25
     26struct dca_domain {
     27	struct list_head	node;
     28	struct list_head	dca_providers;
     29	struct pci_bus		*pci_rc;
     30};
     31
     32struct dca_ops {
     33	int	(*add_requester)    (struct dca_provider *, struct device *);
     34	int	(*remove_requester) (struct dca_provider *, struct device *);
     35	u8	(*get_tag)	    (struct dca_provider *, struct device *,
     36				     int cpu);
     37	int	(*dev_managed)      (struct dca_provider *, struct device *);
     38};
     39
     40struct dca_provider *alloc_dca_provider(const struct dca_ops *ops,
     41					int priv_size);
     42void free_dca_provider(struct dca_provider *dca);
     43int register_dca_provider(struct dca_provider *dca, struct device *dev);
     44void unregister_dca_provider(struct dca_provider *dca, struct device *dev);
     45
     46static inline void *dca_priv(struct dca_provider *dca)
     47{
     48	return (void *)dca + sizeof(struct dca_provider);
     49}
     50
     51/* Requester API */
     52#define DCA_GET_TAG_TWO_ARGS
     53int dca_add_requester(struct device *dev);
     54int dca_remove_requester(struct device *dev);
     55u8 dca_get_tag(int cpu);
     56u8 dca3_get_tag(struct device *dev, int cpu);
     57
     58/* internal stuff */
     59int __init dca_sysfs_init(void);
     60void __exit dca_sysfs_exit(void);
     61int dca_sysfs_add_provider(struct dca_provider *dca, struct device *dev);
     62void dca_sysfs_remove_provider(struct dca_provider *dca);
     63int dca_sysfs_add_req(struct dca_provider *dca, struct device *dev, int slot);
     64void dca_sysfs_remove_req(struct dca_provider *dca, int slot);
     65
     66#endif /* DCA_H */