/*
* Copyright (C) 2012 Advanced Micro Devices, Inc.
* Author: Joerg Roedel <joerg.roedel@amd.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
* by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* This header file contains the interface of the interrupt remapping code to
* the x86 interrupt management code.
*/
#ifndef __X86_IRQ_REMAPPING_H
#define __X86_IRQ_REMAPPING_H
#include <asm/io_apic.h>
#ifdef CONFIG_IRQ_REMAP
extern int irq_remapping_enabled;
extern void setup_irq_remapping_ops(void);
extern int irq_remapping_supported(void);
extern int irq_remapping_prepare(void);
extern int irq_remapping_enable(void);
extern void irq_remapping_disable(void);
extern int irq_remapping_reenable(int);
extern int irq_remap_enable_fault_handling(void);
extern int setup_ioapic_remapped_entry(int irq,
struct IO_APIC_route_entry *entry,
unsigned int destination,
int vector,
struct io_apic_irq_attr *attr);
extern int set_remapped_irq_affinity(struct irq_data *data,
const struct cpumask *mask,
bool force);
extern void free_remapped_irq(int irq);
extern void compose_remapped_msi_msg(struct pci_dev *pdev,
unsigned int irq, unsigned int dest,
struct msi_msg *msg, u8 hpet_id);
extern int msi_alloc_remapped_irq(struct pci_dev *pdev, int irq, int nvec);
extern int msi_setup_remapped_irq(struct pci_dev *pdev, unsigned int irq,
int index, int sub_handle);
extern int setup_hpet_msi_remapped(unsigned int irq, unsigned int id);
#else /* CONFIG_IRQ_REMAP */
#define irq_remapping_enabled 0
static inline void setup_irq_remapping_ops(void) { }
static inline int irq_remapping_supported(void) { return 0; }
static inline int irq_remapping_prepare(void) { return -ENODEV; }
static inline int irq_remapping_enable(void) { return -ENODEV; }
static inline void irq_remapping_disable(void) { }
static inline int irq_remapping_reenable(int eim) { return -ENODEV; }
static inline int irq_remap_enable_fault_handling(void) { return -ENODEV; }
static inline int setup_ioapic_remapped_entry(int irq,
struct IO_APIC_route_entry *entry,
unsigned int destination,
int vector,
struct io_apic_irq_attr *attr)
{
return -ENODEV;
}
static inline int set_remapped_irq_affinity(struct irq_data *data,
const struct cpumask *mask,
bool force)
{
return 0;
}
static inline void free_remapped_irq(int irq) { }
static inline void compose_remapped_msi_msg(struct pci_dev *pdev,
unsigned int irq, unsigned int dest,
struct msi_msg *msg, u8 hpet_id)
{
}
static inline int msi_alloc_remapped_irq(struct pci_dev *pdev, int irq, int nvec)
{
return -ENODEV;
}
static inline int msi_setup_remapped_irq(struct pci_dev *pdev, unsigned int irq,
int index, int sub_handle)
{
return -ENODEV;
}
static inline int setup_hpet_msi_remapped(unsigned int irq, unsigned int id)
{
return -ENODEV;
}
#endif /* CONFIG_IRQ_REMAP */
#endif /* __X86_IRQ_REMAPPING_H */
