linux/arch/powerpc/sysdev/mpic.h
Matthew McClintock 66953ebef6 powerpc/mpic: Add ability to reset a core via MPIC
We need the ability to reset cores for use with kexec/kdump for
SMP systems. Calling this function with the specific core you want
to reset will cause the CPU to spin in reset.

Signed-off-by: Matthew McClintock <msm@freescale.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2010-07-09 11:28:27 +10:00

42 lines
1.1 KiB
C

#ifndef _POWERPC_SYSDEV_MPIC_H
#define _POWERPC_SYSDEV_MPIC_H
/*
* Copyright 2006-2007, Michael Ellerman, IBM Corporation.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; version 2 of the
* License.
*
*/
#ifdef CONFIG_PCI_MSI
extern void mpic_msi_reserve_hwirq(struct mpic *mpic, irq_hw_number_t hwirq);
extern int mpic_msi_init_allocator(struct mpic *mpic);
extern int mpic_u3msi_init(struct mpic *mpic);
extern int mpic_pasemi_msi_init(struct mpic *mpic);
#else
static inline void mpic_msi_reserve_hwirq(struct mpic *mpic,
irq_hw_number_t hwirq)
{
return;
}
static inline int mpic_u3msi_init(struct mpic *mpic)
{
return -1;
}
static inline int mpic_pasemi_msi_init(struct mpic *mpic)
{
return -1;
}
#endif
extern int mpic_set_irq_type(unsigned int virq, unsigned int flow_type);
extern void mpic_set_vector(unsigned int virq, unsigned int vector);
extern int mpic_set_affinity(unsigned int irq, const struct cpumask *cpumask);
extern void mpic_reset_core(int cpu);
#endif /* _POWERPC_SYSDEV_MPIC_H */