1e2fc4d19SMaciej Sosnowski /* 2e2fc4d19SMaciej Sosnowski * Copyright(c) 2007 - 2009 Intel Corporation. All rights reserved. 3e2fc4d19SMaciej Sosnowski * 4e2fc4d19SMaciej Sosnowski * This program is free software; you can redistribute it and/or modify it 5e2fc4d19SMaciej Sosnowski * under the terms of the GNU General Public License as published by the Free 6e2fc4d19SMaciej Sosnowski * Software Foundation; either version 2 of the License, or (at your option) 7e2fc4d19SMaciej Sosnowski * any later version. 8e2fc4d19SMaciej Sosnowski * 9e2fc4d19SMaciej Sosnowski * This program is distributed in the hope that it will be useful, but WITHOUT 10e2fc4d19SMaciej Sosnowski * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11e2fc4d19SMaciej Sosnowski * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 12e2fc4d19SMaciej Sosnowski * more details. 13e2fc4d19SMaciej Sosnowski * 14e2fc4d19SMaciej Sosnowski * You should have received a copy of the GNU General Public License along with 15e2fc4d19SMaciej Sosnowski * this program; if not, write to the Free Software Foundation, Inc., 59 16e2fc4d19SMaciej Sosnowski * Temple Place - Suite 330, Boston, MA 02111-1307, USA. 17e2fc4d19SMaciej Sosnowski * 18e2fc4d19SMaciej Sosnowski * The full GNU General Public License is included in this distribution in the 19e2fc4d19SMaciej Sosnowski * file called COPYING. 20e2fc4d19SMaciej Sosnowski */ 217589670fSShannon Nelson #ifndef DCA_H 227589670fSShannon Nelson #define DCA_H 231a5aeeecSMaciej Sosnowski 241a5aeeecSMaciej Sosnowski #include <linux/pci.h> 251a5aeeecSMaciej Sosnowski 267589670fSShannon Nelson /* DCA Provider API */ 277589670fSShannon Nelson 287589670fSShannon Nelson /* DCA Notifier Interface */ 297589670fSShannon Nelson void dca_register_notify(struct notifier_block *nb); 307589670fSShannon Nelson void dca_unregister_notify(struct notifier_block *nb); 317589670fSShannon Nelson 327589670fSShannon Nelson #define DCA_PROVIDER_ADD 0x0001 337589670fSShannon Nelson #define DCA_PROVIDER_REMOVE 0x0002 347589670fSShannon Nelson 357589670fSShannon Nelson struct dca_provider { 367f1b358aSMaciej Sosnowski struct list_head node; 37*2bb129ebSJulia Lawall const struct dca_ops *ops; 38765cdb6cSKay Sievers struct device *cd; 397589670fSShannon Nelson int id; 407589670fSShannon Nelson }; 417589670fSShannon Nelson 421a5aeeecSMaciej Sosnowski struct dca_domain { 431a5aeeecSMaciej Sosnowski struct list_head node; 441a5aeeecSMaciej Sosnowski struct list_head dca_providers; 451a5aeeecSMaciej Sosnowski struct pci_bus *pci_rc; 461a5aeeecSMaciej Sosnowski }; 471a5aeeecSMaciej Sosnowski 487589670fSShannon Nelson struct dca_ops { 497589670fSShannon Nelson int (*add_requester) (struct dca_provider *, struct device *); 507589670fSShannon Nelson int (*remove_requester) (struct dca_provider *, struct device *); 517f1b358aSMaciej Sosnowski u8 (*get_tag) (struct dca_provider *, struct device *, 527f1b358aSMaciej Sosnowski int cpu); 537f1b358aSMaciej Sosnowski int (*dev_managed) (struct dca_provider *, struct device *); 547589670fSShannon Nelson }; 557589670fSShannon Nelson 56*2bb129ebSJulia Lawall struct dca_provider *alloc_dca_provider(const struct dca_ops *ops, 57*2bb129ebSJulia Lawall int priv_size); 587589670fSShannon Nelson void free_dca_provider(struct dca_provider *dca); 597589670fSShannon Nelson int register_dca_provider(struct dca_provider *dca, struct device *dev); 601a5aeeecSMaciej Sosnowski void unregister_dca_provider(struct dca_provider *dca, struct device *dev); 617589670fSShannon Nelson 627589670fSShannon Nelson static inline void *dca_priv(struct dca_provider *dca) 637589670fSShannon Nelson { 647589670fSShannon Nelson return (void *)dca + sizeof(struct dca_provider); 657589670fSShannon Nelson } 667589670fSShannon Nelson 677589670fSShannon Nelson /* Requester API */ 687f1b358aSMaciej Sosnowski #define DCA_GET_TAG_TWO_ARGS 697589670fSShannon Nelson int dca_add_requester(struct device *dev); 707589670fSShannon Nelson int dca_remove_requester(struct device *dev); 717589670fSShannon Nelson u8 dca_get_tag(int cpu); 727f1b358aSMaciej Sosnowski u8 dca3_get_tag(struct device *dev, int cpu); 737589670fSShannon Nelson 747589670fSShannon Nelson /* internal stuff */ 757589670fSShannon Nelson int __init dca_sysfs_init(void); 767589670fSShannon Nelson void __exit dca_sysfs_exit(void); 777589670fSShannon Nelson int dca_sysfs_add_provider(struct dca_provider *dca, struct device *dev); 787589670fSShannon Nelson void dca_sysfs_remove_provider(struct dca_provider *dca); 797589670fSShannon Nelson int dca_sysfs_add_req(struct dca_provider *dca, struct device *dev, int slot); 807589670fSShannon Nelson void dca_sysfs_remove_req(struct dca_provider *dca, int slot); 817589670fSShannon Nelson 827589670fSShannon Nelson #endif /* DCA_H */ 83