1e2fc4d19292ef2eb208f76976ddc3320cc5839b6Maciej Sosnowski/* 2e2fc4d19292ef2eb208f76976ddc3320cc5839b6Maciej Sosnowski * Copyright(c) 2007 - 2009 Intel Corporation. All rights reserved. 3e2fc4d19292ef2eb208f76976ddc3320cc5839b6Maciej Sosnowski * 4e2fc4d19292ef2eb208f76976ddc3320cc5839b6Maciej Sosnowski * This program is free software; you can redistribute it and/or modify it 5e2fc4d19292ef2eb208f76976ddc3320cc5839b6Maciej Sosnowski * under the terms of the GNU General Public License as published by the Free 6e2fc4d19292ef2eb208f76976ddc3320cc5839b6Maciej Sosnowski * Software Foundation; either version 2 of the License, or (at your option) 7e2fc4d19292ef2eb208f76976ddc3320cc5839b6Maciej Sosnowski * any later version. 8e2fc4d19292ef2eb208f76976ddc3320cc5839b6Maciej Sosnowski * 9e2fc4d19292ef2eb208f76976ddc3320cc5839b6Maciej Sosnowski * This program is distributed in the hope that it will be useful, but WITHOUT 10e2fc4d19292ef2eb208f76976ddc3320cc5839b6Maciej Sosnowski * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11e2fc4d19292ef2eb208f76976ddc3320cc5839b6Maciej Sosnowski * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 12e2fc4d19292ef2eb208f76976ddc3320cc5839b6Maciej Sosnowski * more details. 13e2fc4d19292ef2eb208f76976ddc3320cc5839b6Maciej Sosnowski * 14e2fc4d19292ef2eb208f76976ddc3320cc5839b6Maciej Sosnowski * You should have received a copy of the GNU General Public License along with 15e2fc4d19292ef2eb208f76976ddc3320cc5839b6Maciej Sosnowski * this program; if not, write to the Free Software Foundation, Inc., 59 16e2fc4d19292ef2eb208f76976ddc3320cc5839b6Maciej Sosnowski * Temple Place - Suite 330, Boston, MA 02111-1307, USA. 17e2fc4d19292ef2eb208f76976ddc3320cc5839b6Maciej Sosnowski * 18e2fc4d19292ef2eb208f76976ddc3320cc5839b6Maciej Sosnowski * The full GNU General Public License is included in this distribution in the 19e2fc4d19292ef2eb208f76976ddc3320cc5839b6Maciej Sosnowski * file called COPYING. 20e2fc4d19292ef2eb208f76976ddc3320cc5839b6Maciej Sosnowski */ 217589670f37736bcc119ebfbd69aafea6d585d1d4Shannon Nelson#ifndef DCA_H 227589670f37736bcc119ebfbd69aafea6d585d1d4Shannon Nelson#define DCA_H 231a5aeeecd550ee4344cfba1791f1134739b16dc6Maciej Sosnowski 241a5aeeecd550ee4344cfba1791f1134739b16dc6Maciej Sosnowski#include <linux/pci.h> 251a5aeeecd550ee4344cfba1791f1134739b16dc6Maciej Sosnowski 267589670f37736bcc119ebfbd69aafea6d585d1d4Shannon Nelson/* DCA Provider API */ 277589670f37736bcc119ebfbd69aafea6d585d1d4Shannon Nelson 287589670f37736bcc119ebfbd69aafea6d585d1d4Shannon Nelson/* DCA Notifier Interface */ 297589670f37736bcc119ebfbd69aafea6d585d1d4Shannon Nelsonvoid dca_register_notify(struct notifier_block *nb); 307589670f37736bcc119ebfbd69aafea6d585d1d4Shannon Nelsonvoid dca_unregister_notify(struct notifier_block *nb); 317589670f37736bcc119ebfbd69aafea6d585d1d4Shannon Nelson 327589670f37736bcc119ebfbd69aafea6d585d1d4Shannon Nelson#define DCA_PROVIDER_ADD 0x0001 337589670f37736bcc119ebfbd69aafea6d585d1d4Shannon Nelson#define DCA_PROVIDER_REMOVE 0x0002 347589670f37736bcc119ebfbd69aafea6d585d1d4Shannon Nelson 357589670f37736bcc119ebfbd69aafea6d585d1d4Shannon Nelsonstruct dca_provider { 367f1b358a236ee9c19657a619ac6f2dcabcaa0924Maciej Sosnowski struct list_head node; 377589670f37736bcc119ebfbd69aafea6d585d1d4Shannon Nelson struct dca_ops *ops; 38765cdb6cef63c0b41c3f6c9285769080b3f41bb0Kay Sievers struct device *cd; 397589670f37736bcc119ebfbd69aafea6d585d1d4Shannon Nelson int id; 407589670f37736bcc119ebfbd69aafea6d585d1d4Shannon Nelson}; 417589670f37736bcc119ebfbd69aafea6d585d1d4Shannon Nelson 421a5aeeecd550ee4344cfba1791f1134739b16dc6Maciej Sosnowskistruct dca_domain { 431a5aeeecd550ee4344cfba1791f1134739b16dc6Maciej Sosnowski struct list_head node; 441a5aeeecd550ee4344cfba1791f1134739b16dc6Maciej Sosnowski struct list_head dca_providers; 451a5aeeecd550ee4344cfba1791f1134739b16dc6Maciej Sosnowski struct pci_bus *pci_rc; 461a5aeeecd550ee4344cfba1791f1134739b16dc6Maciej Sosnowski}; 471a5aeeecd550ee4344cfba1791f1134739b16dc6Maciej Sosnowski 487589670f37736bcc119ebfbd69aafea6d585d1d4Shannon Nelsonstruct dca_ops { 497589670f37736bcc119ebfbd69aafea6d585d1d4Shannon Nelson int (*add_requester) (struct dca_provider *, struct device *); 507589670f37736bcc119ebfbd69aafea6d585d1d4Shannon Nelson int (*remove_requester) (struct dca_provider *, struct device *); 517f1b358a236ee9c19657a619ac6f2dcabcaa0924Maciej Sosnowski u8 (*get_tag) (struct dca_provider *, struct device *, 527f1b358a236ee9c19657a619ac6f2dcabcaa0924Maciej Sosnowski int cpu); 537f1b358a236ee9c19657a619ac6f2dcabcaa0924Maciej Sosnowski int (*dev_managed) (struct dca_provider *, struct device *); 547589670f37736bcc119ebfbd69aafea6d585d1d4Shannon Nelson}; 557589670f37736bcc119ebfbd69aafea6d585d1d4Shannon Nelson 567589670f37736bcc119ebfbd69aafea6d585d1d4Shannon Nelsonstruct dca_provider *alloc_dca_provider(struct dca_ops *ops, int priv_size); 577589670f37736bcc119ebfbd69aafea6d585d1d4Shannon Nelsonvoid free_dca_provider(struct dca_provider *dca); 587589670f37736bcc119ebfbd69aafea6d585d1d4Shannon Nelsonint register_dca_provider(struct dca_provider *dca, struct device *dev); 591a5aeeecd550ee4344cfba1791f1134739b16dc6Maciej Sosnowskivoid unregister_dca_provider(struct dca_provider *dca, struct device *dev); 607589670f37736bcc119ebfbd69aafea6d585d1d4Shannon Nelson 617589670f37736bcc119ebfbd69aafea6d585d1d4Shannon Nelsonstatic inline void *dca_priv(struct dca_provider *dca) 627589670f37736bcc119ebfbd69aafea6d585d1d4Shannon Nelson{ 637589670f37736bcc119ebfbd69aafea6d585d1d4Shannon Nelson return (void *)dca + sizeof(struct dca_provider); 647589670f37736bcc119ebfbd69aafea6d585d1d4Shannon Nelson} 657589670f37736bcc119ebfbd69aafea6d585d1d4Shannon Nelson 667589670f37736bcc119ebfbd69aafea6d585d1d4Shannon Nelson/* Requester API */ 677f1b358a236ee9c19657a619ac6f2dcabcaa0924Maciej Sosnowski#define DCA_GET_TAG_TWO_ARGS 687589670f37736bcc119ebfbd69aafea6d585d1d4Shannon Nelsonint dca_add_requester(struct device *dev); 697589670f37736bcc119ebfbd69aafea6d585d1d4Shannon Nelsonint dca_remove_requester(struct device *dev); 707589670f37736bcc119ebfbd69aafea6d585d1d4Shannon Nelsonu8 dca_get_tag(int cpu); 717f1b358a236ee9c19657a619ac6f2dcabcaa0924Maciej Sosnowskiu8 dca3_get_tag(struct device *dev, int cpu); 727589670f37736bcc119ebfbd69aafea6d585d1d4Shannon Nelson 737589670f37736bcc119ebfbd69aafea6d585d1d4Shannon Nelson/* internal stuff */ 747589670f37736bcc119ebfbd69aafea6d585d1d4Shannon Nelsonint __init dca_sysfs_init(void); 757589670f37736bcc119ebfbd69aafea6d585d1d4Shannon Nelsonvoid __exit dca_sysfs_exit(void); 767589670f37736bcc119ebfbd69aafea6d585d1d4Shannon Nelsonint dca_sysfs_add_provider(struct dca_provider *dca, struct device *dev); 777589670f37736bcc119ebfbd69aafea6d585d1d4Shannon Nelsonvoid dca_sysfs_remove_provider(struct dca_provider *dca); 787589670f37736bcc119ebfbd69aafea6d585d1d4Shannon Nelsonint dca_sysfs_add_req(struct dca_provider *dca, struct device *dev, int slot); 797589670f37736bcc119ebfbd69aafea6d585d1d4Shannon Nelsonvoid dca_sysfs_remove_req(struct dca_provider *dca, int slot); 807589670f37736bcc119ebfbd69aafea6d585d1d4Shannon Nelson 817589670f37736bcc119ebfbd69aafea6d585d1d4Shannon Nelson#endif /* DCA_H */ 82