linux-stable/include/linux/arm-cci.h
Arnd Bergmann db967cf828
arm-cci: add cci_enable_port_for_self prototype
The cci_enable_port_for_self() is called from assembler, so
add the prototype only to shut up the W=1 warning:

drivers/bus/arm-cci.c:298:25: error: no previous prototype for 'cci_enable_port_for_self' [-Werror=missing-prototypes]

Link: https://lore.kernel.org/r/20230516201218.556437-1-arnd@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2023-05-26 13:43:52 +02:00

57 lines
1.4 KiB
C

/* 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
void cci_enable_port_for_self(void);
#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