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/* SPDX-License-Identifier: GPL-2.0-only */
#ifndef _POWERPC_SYSDEV_MSI_BITMAP_H
#define _POWERPC_SYSDEV_MSI_BITMAP_H
/*
* Copyright 2008, Michael Ellerman, IBM Corporation.
*/
#include <linux/of.h>
#include <asm/irq.h>
struct msi_bitmap {
struct device_node *of_node;
unsigned long *bitmap;
spinlock_t lock;
unsigned int irq_count;
bool bitmap_from_slab;
};
int msi_bitmap_alloc_hwirqs(struct msi_bitmap *bmp, int num);
void msi_bitmap_free_hwirqs(struct msi_bitmap *bmp, unsigned int offset,
unsigned int num);
void msi_bitmap_reserve_hwirq(struct msi_bitmap *bmp, unsigned int hwirq);
int msi_bitmap_reserve_dt_hwirqs(struct msi_bitmap *bmp);
int msi_bitmap_alloc(struct msi_bitmap *bmp, unsigned int irq_count,
struct device_node *of_node);
void msi_bitmap_free(struct msi_bitmap *bmp);
#endif /* _POWERPC_SYSDEV_MSI_BITMAP_H */