1 /* 2 * CCI cache coherent interconnect support 3 * 4 * Copyright (C) 2013 ARM Ltd. 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation; either version 2 of the License, or 9 * (at your option) any later version. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this program; if not, write to the Free Software 18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 19 */ 20 21 #ifndef __LINUX_ARM_CCI_H 22 #define __LINUX_ARM_CCI_H 23 24 #include <linux/errno.h> 25 #include <linux/types.h> 26 27 struct device_node; 28 29 #ifdef CONFIG_ARM_CCI 30 extern bool cci_probed(void); 31 extern int cci_ace_get_port(struct device_node *dn); 32 extern int cci_disable_port_by_cpu(u64 mpidr); 33 extern int __cci_control_port_by_device(struct device_node *dn, bool enable); 34 extern int __cci_control_port_by_index(u32 port, bool enable); 35 #else 36 static inline bool cci_probed(void) { return false; } 37 static inline int cci_ace_get_port(struct device_node *dn) 38 { 39 return -ENODEV; 40 } 41 static inline int cci_disable_port_by_cpu(u64 mpidr) { return -ENODEV; } 42 static inline int __cci_control_port_by_device(struct device_node *dn, 43 bool enable) 44 { 45 return -ENODEV; 46 } 47 static inline int __cci_control_port_by_index(u32 port, bool enable) 48 { 49 return -ENODEV; 50 } 51 #endif 52 #define cci_disable_port_by_device(dev) \ 53 __cci_control_port_by_device(dev, false) 54 #define cci_enable_port_by_device(dev) \ 55 __cci_control_port_by_device(dev, true) 56 #define cci_disable_port_by_index(dev) \ 57 __cci_control_port_by_index(dev, false) 58 #define cci_enable_port_by_index(dev) \ 59 __cci_control_port_by_index(dev, true) 60 61 #endif 62