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arm-cci: Split the code for PMU vs driver support
[mirror_ubuntu-zesty-kernel.git] / include / linux / arm-cci.h
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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
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27#include <asm/arm-cci.h>
28
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29struct device_node;
30
31#ifdef CONFIG_ARM_CCI
32extern bool cci_probed(void);
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33#else
34static inline bool cci_probed(void) { return false; }
35#endif
36
37#ifdef CONFIG_ARM_CCI400_PORT_CTRL
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38extern int cci_ace_get_port(struct device_node *dn);
39extern int cci_disable_port_by_cpu(u64 mpidr);
40extern int __cci_control_port_by_device(struct device_node *dn, bool enable);
41extern int __cci_control_port_by_index(u32 port, bool enable);
42#else
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43static inline int cci_ace_get_port(struct device_node *dn)
44{
45 return -ENODEV;
46}
47static inline int cci_disable_port_by_cpu(u64 mpidr) { return -ENODEV; }
48static inline int __cci_control_port_by_device(struct device_node *dn,
49 bool enable)
50{
51 return -ENODEV;
52}
53static inline int __cci_control_port_by_index(u32 port, bool enable)
54{
55 return -ENODEV;
56}
57#endif
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59#define cci_disable_port_by_device(dev) \
60 __cci_control_port_by_device(dev, false)
61#define cci_enable_port_by_device(dev) \
62 __cci_control_port_by_device(dev, true)
63#define cci_disable_port_by_index(dev) \
64 __cci_control_port_by_index(dev, false)
65#define cci_enable_port_by_index(dev) \
66 __cci_control_port_by_index(dev, true)
67
68#endif