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- /* SPDX-License-Identifier: GPL-2.0-or-later */
- /*
- * Copyright(c) 2007 - 2009 Intel Corporation. All rights reserved.
- */
- #ifndef DCA_H
- #define DCA_H
- #include <linux/pci.h>
- /* DCA Provider API */
- /* DCA Notifier Interface */
- void dca_register_notify(struct notifier_block *nb);
- void dca_unregister_notify(struct notifier_block *nb);
- #define DCA_PROVIDER_ADD 0x0001
- #define DCA_PROVIDER_REMOVE 0x0002
- struct dca_provider {
- struct list_head node;
- const struct dca_ops *ops;
- struct device *cd;
- int id;
- };
- struct dca_domain {
- struct list_head node;
- struct list_head dca_providers;
- struct pci_bus *pci_rc;
- };
- struct dca_ops {
- int (*add_requester) (struct dca_provider *, struct device *);
- int (*remove_requester) (struct dca_provider *, struct device *);
- u8 (*get_tag) (struct dca_provider *, struct device *,
- int cpu);
- int (*dev_managed) (struct dca_provider *, struct device *);
- };
- struct dca_provider *alloc_dca_provider(const struct dca_ops *ops,
- int priv_size);
- void free_dca_provider(struct dca_provider *dca);
- int register_dca_provider(struct dca_provider *dca, struct device *dev);
- void unregister_dca_provider(struct dca_provider *dca, struct device *dev);
- static inline void *dca_priv(struct dca_provider *dca)
- {
- return (void *)dca + sizeof(struct dca_provider);
- }
- /* Requester API */
- #define DCA_GET_TAG_TWO_ARGS
- int dca_add_requester(struct device *dev);
- int dca_remove_requester(struct device *dev);
- u8 dca_get_tag(int cpu);
- u8 dca3_get_tag(struct device *dev, int cpu);
- /* internal stuff */
- int __init dca_sysfs_init(void);
- void __exit dca_sysfs_exit(void);
- int dca_sysfs_add_provider(struct dca_provider *dca, struct device *dev);
- void dca_sysfs_remove_provider(struct dca_provider *dca);
- int dca_sysfs_add_req(struct dca_provider *dca, struct device *dev, int slot);
- void dca_sysfs_remove_req(struct dca_provider *dca, int slot);
- #endif /* DCA_H */
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