1e62d9491SThomas Gleixner /* SPDX-License-Identifier: GPL-2.0-or-later */
2e2fc4d19SMaciej Sosnowski /*
3e2fc4d19SMaciej Sosnowski * Copyright(c) 2007 - 2009 Intel Corporation. All rights reserved.
4e2fc4d19SMaciej Sosnowski */
57589670fSShannon Nelson #ifndef DCA_H
67589670fSShannon Nelson #define DCA_H
71a5aeeecSMaciej Sosnowski
81a5aeeecSMaciej Sosnowski #include <linux/pci.h>
91a5aeeecSMaciej Sosnowski
107589670fSShannon Nelson /* DCA Provider API */
117589670fSShannon Nelson
127589670fSShannon Nelson /* DCA Notifier Interface */
137589670fSShannon Nelson void dca_register_notify(struct notifier_block *nb);
147589670fSShannon Nelson void dca_unregister_notify(struct notifier_block *nb);
157589670fSShannon Nelson
167589670fSShannon Nelson #define DCA_PROVIDER_ADD 0x0001
177589670fSShannon Nelson #define DCA_PROVIDER_REMOVE 0x0002
187589670fSShannon Nelson
197589670fSShannon Nelson struct dca_provider {
207f1b358aSMaciej Sosnowski struct list_head node;
212bb129ebSJulia Lawall const struct dca_ops *ops;
22765cdb6cSKay Sievers struct device *cd;
237589670fSShannon Nelson int id;
247589670fSShannon Nelson };
257589670fSShannon Nelson
261a5aeeecSMaciej Sosnowski struct dca_domain {
271a5aeeecSMaciej Sosnowski struct list_head node;
281a5aeeecSMaciej Sosnowski struct list_head dca_providers;
291a5aeeecSMaciej Sosnowski struct pci_bus *pci_rc;
301a5aeeecSMaciej Sosnowski };
311a5aeeecSMaciej Sosnowski
327589670fSShannon Nelson struct dca_ops {
337589670fSShannon Nelson int (*add_requester) (struct dca_provider *, struct device *);
347589670fSShannon Nelson int (*remove_requester) (struct dca_provider *, struct device *);
357f1b358aSMaciej Sosnowski u8 (*get_tag) (struct dca_provider *, struct device *,
367f1b358aSMaciej Sosnowski int cpu);
377f1b358aSMaciej Sosnowski int (*dev_managed) (struct dca_provider *, struct device *);
387589670fSShannon Nelson };
397589670fSShannon Nelson
402bb129ebSJulia Lawall struct dca_provider *alloc_dca_provider(const struct dca_ops *ops,
412bb129ebSJulia Lawall int priv_size);
427589670fSShannon Nelson void free_dca_provider(struct dca_provider *dca);
437589670fSShannon Nelson int register_dca_provider(struct dca_provider *dca, struct device *dev);
441a5aeeecSMaciej Sosnowski void unregister_dca_provider(struct dca_provider *dca, struct device *dev);
457589670fSShannon Nelson
dca_priv(struct dca_provider * dca)467589670fSShannon Nelson static inline void *dca_priv(struct dca_provider *dca)
477589670fSShannon Nelson {
487589670fSShannon Nelson return (void *)dca + sizeof(struct dca_provider);
497589670fSShannon Nelson }
507589670fSShannon Nelson
517589670fSShannon Nelson /* Requester API */
527f1b358aSMaciej Sosnowski #define DCA_GET_TAG_TWO_ARGS
537589670fSShannon Nelson int dca_add_requester(struct device *dev);
547589670fSShannon Nelson int dca_remove_requester(struct device *dev);
557589670fSShannon Nelson u8 dca_get_tag(int cpu);
567f1b358aSMaciej Sosnowski u8 dca3_get_tag(struct device *dev, int cpu);
577589670fSShannon Nelson
587589670fSShannon Nelson /* internal stuff */
597589670fSShannon Nelson int __init dca_sysfs_init(void);
607589670fSShannon Nelson void __exit dca_sysfs_exit(void);
617589670fSShannon Nelson int dca_sysfs_add_provider(struct dca_provider *dca, struct device *dev);
627589670fSShannon Nelson void dca_sysfs_remove_provider(struct dca_provider *dca);
637589670fSShannon Nelson int dca_sysfs_add_req(struct dca_provider *dca, struct device *dev, int slot);
647589670fSShannon Nelson void dca_sysfs_remove_req(struct dca_provider *dca, int slot);
657589670fSShannon Nelson
667589670fSShannon Nelson #endif /* DCA_H */
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