[deliverable/linux.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

#include <asm/io_apic.h>

struct IO_APIC_route_entry;
struct io_apic_irq_attr;
struct irq_chip;
struct msi_msg;
struct pci_dev;
struct irq_cfg;

#ifdef CONFIG_IRQ_REMAP

extern void set_irq_remapping_broken(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 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 setup_hpet_msi_remapped(unsigned int irq, unsigned int id);
extern void panic_if_irq_remap(const char *msg);
extern bool setup_remapped_irq(int irq,
			       struct irq_cfg *cfg,
			       struct irq_chip *chip);

void irq_remap_modify_chip_defaults(struct irq_chip *chip);

#else  /* CONFIG_IRQ_REMAP */

static inline void set_irq_remapping_broken(void) { }
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 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 setup_hpet_msi_remapped(unsigned int irq, unsigned int id)
{
	return -ENODEV;
}

static inline void panic_if_irq_remap(const char *msg)
{
}

static inline void irq_remap_modify_chip_defaults(struct irq_chip *chip)
{
}

static inline bool setup_remapped_irq(int irq,
				      struct irq_cfg *cfg,
				      struct irq_chip *chip)
{
	return false;
}
#endif /* CONFIG_IRQ_REMAP */

#define dmar_alloc_hwirq()	irq_alloc_hwirq(-1)
#define dmar_free_hwirq		irq_free_hwirq

#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	24
399988ee	25	#include <asm/io_apic.h>
736baef4	26
35d3d814 JR	27	struct IO_APIC_route_entry;
	28	struct io_apic_irq_attr;
	29	struct irq_chip;
	30	struct msi_msg;
	31	struct pci_dev;
	32	struct irq_cfg;
	33
399988ee	34	#ifdef CONFIG_IRQ_REMAP
0c3f173a	35
03bbcb2e	36	extern void set_irq_remapping_broken(void);
95a02e97 SS	37	extern int irq_remapping_prepare(void);
	38	extern int irq_remapping_enable(void);
	39	extern void irq_remapping_disable(void);
	40	extern int irq_remapping_reenable(int);
	41	extern int irq_remap_enable_fault_handling(void);
	42	extern int setup_ioapic_remapped_entry(int irq,
	43	struct IO_APIC_route_entry *entry,
	44	unsigned int destination,
	45	int vector,
	46	struct io_apic_irq_attr *attr);
95a02e97 SS	47	extern void free_remapped_irq(int irq);
	48	extern void compose_remapped_msi_msg(struct pci_dev *pdev,
	49	unsigned int irq, unsigned int dest,
	50	struct msi_msg *msg, u8 hpet_id);
95a02e97	51	extern int setup_hpet_msi_remapped(unsigned int irq, unsigned int id);
6a9f5de2	52	extern void panic_if_irq_remap(const char *msg);
2976fd84 JR	53	extern bool setup_remapped_irq(int irq,
	54	struct irq_cfg *cfg,
	55	struct irq_chip *chip);
736baef4	56
9b1b0e42 JR	57	void irq_remap_modify_chip_defaults(struct irq_chip *chip);
9b1b0e42 JR	58
736baef4 JR	59	#else /* CONFIG_IRQ_REMAP */
736baef4 JR	60
03bbcb2e	61	static inline void set_irq_remapping_broken(void) { }
95a02e97 SS	62	static inline int irq_remapping_prepare(void) { return -ENODEV; }
	63	static inline int irq_remapping_enable(void) { return -ENODEV; }
	64	static inline void irq_remapping_disable(void) { }
	65	static inline int irq_remapping_reenable(int eim) { return -ENODEV; }
	66	static inline int irq_remap_enable_fault_handling(void) { return -ENODEV; }
	67	static inline int setup_ioapic_remapped_entry(int irq,
	68	struct IO_APIC_route_entry *entry,
	69	unsigned int destination,
	70	int vector,
	71	struct io_apic_irq_attr *attr)
0c3f173a JR	72	{
	73	return -ENODEV;
	74	}
95a02e97 SS	75	static inline void free_remapped_irq(int irq) { }
	76	static inline void compose_remapped_msi_msg(struct pci_dev *pdev,
	77	unsigned int irq, unsigned int dest,
	78	struct msi_msg *msg, u8 hpet_id)
5e2b930b JR	79	{
5e2b930b JR	80	}
95a02e97	81	static inline int setup_hpet_msi_remapped(unsigned int irq, unsigned int id)
5e2b930b JR	82	{
	83	return -ENODEV;
	84	}
6a9f5de2 JR	85
	86	static inline void panic_if_irq_remap(const char *msg)
	87	{
	88	}
9b1b0e42	89
9b1b0e42 JR	90	static inline void irq_remap_modify_chip_defaults(struct irq_chip *chip)
	91	{
	92	}
	93
2976fd84 JR	94	static inline bool setup_remapped_irq(int irq,
	95	struct irq_cfg *cfg,
	96	struct irq_chip *chip)
	97	{
	98	return false;
	99	}
736baef4 JR	100	#endif /* CONFIG_IRQ_REMAP */
736baef4 JR	101
a553b142 TG	102	#define dmar_alloc_hwirq() irq_alloc_hwirq(-1)
	103	#define dmar_free_hwirq irq_free_hwirq
	104
8a8f422d	105	#endif /* __X86_IRQ_REMAPPING_H */