1/* SPDX-License-Identifier: GPL-2.0-only */
 2#ifndef _POWERPC_SYSDEV_MSI_BITMAP_H
 3#define _POWERPC_SYSDEV_MSI_BITMAP_H
 4
 5/*
 6 * Copyright 2008, Michael Ellerman, IBM Corporation.
 
 
 
 
 
 
 7 */
 8
 9#include <linux/of.h>
10#include <asm/irq.h>
11
12struct msi_bitmap {
13	struct device_node	*of_node;
14	unsigned long		*bitmap;
15	spinlock_t		lock;
16	unsigned int		irq_count;
17	bool		 	bitmap_from_slab;
18};
19
20int msi_bitmap_alloc_hwirqs(struct msi_bitmap *bmp, int num);
21void msi_bitmap_free_hwirqs(struct msi_bitmap *bmp, unsigned int offset,
22			    unsigned int num);
23void msi_bitmap_reserve_hwirq(struct msi_bitmap *bmp, unsigned int hwirq);
24
25int msi_bitmap_reserve_dt_hwirqs(struct msi_bitmap *bmp);
26
27int msi_bitmap_alloc(struct msi_bitmap *bmp, unsigned int irq_count,
28		     struct device_node *of_node);
29void msi_bitmap_free(struct msi_bitmap *bmp);
30
31#endif /* _POWERPC_SYSDEV_MSI_BITMAP_H */

 
 1#ifndef _POWERPC_SYSDEV_MSI_BITMAP_H
 2#define _POWERPC_SYSDEV_MSI_BITMAP_H
 3
 4/*
 5 * Copyright 2008, Michael Ellerman, IBM Corporation.
 6 *
 7 * This program is free software; you can redistribute it and/or
 8 * modify it under the terms of the GNU General Public License
 9 * as published by the Free Software Foundation; version 2 of the
10 * License.
11 *
12 */
13
14#include <linux/of.h>
15#include <asm/irq.h>
16
17struct msi_bitmap {
18	struct device_node	*of_node;
19	unsigned long		*bitmap;
20	spinlock_t		lock;
21	unsigned int		irq_count;
22	bool		 	bitmap_from_slab;
23};
24
25int msi_bitmap_alloc_hwirqs(struct msi_bitmap *bmp, int num);
26void msi_bitmap_free_hwirqs(struct msi_bitmap *bmp, unsigned int offset,
27			    unsigned int num);
28void msi_bitmap_reserve_hwirq(struct msi_bitmap *bmp, unsigned int hwirq);
29
30int msi_bitmap_reserve_dt_hwirqs(struct msi_bitmap *bmp);
31
32int msi_bitmap_alloc(struct msi_bitmap *bmp, unsigned int irq_count,
33		     struct device_node *of_node);
34void msi_bitmap_free(struct msi_bitmap *bmp);
35
36#endif /* _POWERPC_SYSDEV_MSI_BITMAP_H */