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View File Name : arm-cci.h

/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * CCI cache coherent interconnect support
 *
 * Copyright (C) 2013 ARM Ltd.
 */

#ifndef __LINUX_ARM_CCI_H
#define __LINUX_ARM_CCI_H

#include <linux/errno.h>
#include <linux/types.h>

#include <asm/arm-cci.h>

struct device_node;

#ifdef CONFIG_ARM_CCI
extern bool cci_probed(void);
#else
static inline bool cci_probed(void) { return false; }
#endif

#ifdef CONFIG_ARM_CCI400_PORT_CTRL
extern int cci_ace_get_port(struct device_node *dn);
extern int cci_disable_port_by_cpu(u64 mpidr);
extern int __cci_control_port_by_device(struct device_node *dn, bool enable);
extern int __cci_control_port_by_index(u32 port, bool enable);
#else
static inline int cci_ace_get_port(struct device_node *dn)
{
	return -ENODEV;
}
static inline int cci_disable_port_by_cpu(u64 mpidr) { return -ENODEV; }
static inline int __cci_control_port_by_device(struct device_node *dn,
					       bool enable)
{
	return -ENODEV;
}
static inline int __cci_control_port_by_index(u32 port, bool enable)
{
	return -ENODEV;
}
#endif

#define cci_disable_port_by_device(dev) \
	__cci_control_port_by_device(dev, false)
#define cci_enable_port_by_device(dev) \
	__cci_control_port_by_device(dev, true)
#define cci_disable_port_by_index(dev) \
	__cci_control_port_by_index(dev, false)
#define cci_enable_port_by_index(dev) \
	__cci_control_port_by_index(dev, true)

#endif