[mirror_ubuntu-artful-kernel.git] / arch / x86 / include / asm / irq_remapping.h

/*
 * 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

#ifdef CONFIG_IRQ_REMAP

struct IO_APIC_route_entry;
struct io_apic_irq_attr;
struct pci_dev;

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 */
Commit	Line	Data
736baef4 JR	1	/*
	2	* Copyright (C) 2012 Advanced Micro Devices, Inc.
	3	* Author: Joerg Roedel <joerg.roedel@amd.com>
	4	*
	5	* This program is free software; you can redistribute it and/or modify it
	6	* under the terms of the GNU General Public License version 2 as published
	7	* by the Free Software Foundation.
	8	*
	9	* This program is distributed in the hope that it will be useful,
	10	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	11	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	12	* GNU General Public License for more details.
	13	*
	14	* You should have received a copy of the GNU General Public License
	15	* along with this program; if not, write to the Free Software
	16	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	17	*
	18	* This header file contains the interface of the interrupt remapping code to
	19	* the x86 interrupt management code.
	20	*/
	21
8a8f422d SS	22	#ifndef __X86_IRQ_REMAPPING_H
8a8f422d SS	23	#define __X86_IRQ_REMAPPING_H
736baef4 JR	24
	25	#ifdef CONFIG_IRQ_REMAP
	26
0c3f173a JR	27	struct IO_APIC_route_entry;
0c3f173a JR	28	struct io_apic_irq_attr;
5e2b930b	29	struct pci_dev;
0c3f173a	30
95a02e97	31	extern int irq_remapping_enabled;
736baef4	32
95a02e97 SS	33	extern void setup_irq_remapping_ops(void);
	34	extern int irq_remapping_supported(void);
	35	extern int irq_remapping_prepare(void);
	36	extern int irq_remapping_enable(void);
	37	extern void irq_remapping_disable(void);
	38	extern int irq_remapping_reenable(int);
	39	extern int irq_remap_enable_fault_handling(void);
	40	extern int setup_ioapic_remapped_entry(int irq,
	41	struct IO_APIC_route_entry *entry,
	42	unsigned int destination,
	43	int vector,
	44	struct io_apic_irq_attr *attr);
	45	extern int set_remapped_irq_affinity(struct irq_data *data,
	46	const struct cpumask *mask,
	47	bool force);
	48	extern void free_remapped_irq(int irq);
	49	extern void compose_remapped_msi_msg(struct pci_dev *pdev,
	50	unsigned int irq, unsigned int dest,
	51	struct msi_msg *msg, u8 hpet_id);
	52	extern int msi_alloc_remapped_irq(struct pci_dev *pdev, int irq, int nvec);
	53	extern int msi_setup_remapped_irq(struct pci_dev *pdev, unsigned int irq,
	54	int index, int sub_handle);
	55	extern int setup_hpet_msi_remapped(unsigned int irq, unsigned int id);
736baef4 JR	56
	57	#else /* CONFIG_IRQ_REMAP */
	58
95a02e97	59	#define irq_remapping_enabled 0
736baef4	60
95a02e97 SS	61	static inline void setup_irq_remapping_ops(void) { }
	62	static inline int irq_remapping_supported(void) { return 0; }
	63	static inline int irq_remapping_prepare(void) { return -ENODEV; }
	64	static inline int irq_remapping_enable(void) { return -ENODEV; }
	65	static inline void irq_remapping_disable(void) { }
	66	static inline int irq_remapping_reenable(int eim) { return -ENODEV; }
	67	static inline int irq_remap_enable_fault_handling(void) { return -ENODEV; }
	68	static inline int setup_ioapic_remapped_entry(int irq,
	69	struct IO_APIC_route_entry *entry,
	70	unsigned int destination,
	71	int vector,
	72	struct io_apic_irq_attr *attr)
0c3f173a JR	73	{
	74	return -ENODEV;
	75	}
95a02e97 SS	76	static inline int set_remapped_irq_affinity(struct irq_data *data,
	77	const struct cpumask *mask,
	78	bool force)
4c1bad6a JR	79	{
	80	return 0;
	81	}
95a02e97 SS	82	static inline void free_remapped_irq(int irq) { }
	83	static inline void compose_remapped_msi_msg(struct pci_dev *pdev,
	84	unsigned int irq, unsigned int dest,
	85	struct msi_msg *msg, u8 hpet_id)
5e2b930b JR	86	{
5e2b930b JR	87	}
95a02e97	88	static inline int msi_alloc_remapped_irq(struct pci_dev *pdev, int irq, int nvec)
5e2b930b JR	89	{
	90	return -ENODEV;
	91	}
95a02e97 SS	92	static inline int msi_setup_remapped_irq(struct pci_dev *pdev, unsigned int irq,
95a02e97 SS	93	int index, int sub_handle)
5e2b930b JR	94	{
	95	return -ENODEV;
	96	}
95a02e97	97	static inline int setup_hpet_msi_remapped(unsigned int irq, unsigned int id)
5e2b930b JR	98	{
	99	return -ENODEV;
	100	}
736baef4 JR	101	#endif /* CONFIG_IRQ_REMAP */
736baef4 JR	102
8a8f422d	103	#endif /* __X86_IRQ_REMAPPING_H */